Abstract: The invention comprises a combination burner for the gasification of pulverized fuels with an oxidation means containing free oxygen at ambient or higher pressures, as well as temperatures between 800-1800° C., with the ignition device of the pilot burner with flame monitoring and the pulverized fuel burner being integrated as a combination burner and all operating channels being routed separately from each other up to the mouth of the burner and the media carried by the channels only being mixed at the mouth of the burner. When the pilot burner is dismantled the eddy bodies 14 attached to its sleeve in the main burner oxidation means supply 17 can be exchanged quickly and easily and thus the main burner flame adapted in the optimum way to the reaction chamber contour of the reactor.

Abstract: A pontic (10) having a prefabricated notch, channel or slot (11) to physically engage and ensure a secure mechanical lock with the dental appliance (30). The invention also pertains to a method of fabricating a dental appliance (30) and a kit for facilitating the same. The invention has particular application to thermoformed, removable appliances.

Abstract: A method of indirect bonding and a physical model that allows for optimal positional alignment of orthodontic appliances on a patient's teeth is disclosed. The physical model of the patient's teeth has pods and ridges on the facial surface of the teeth. Adhesive is applied to an orthodontic appliance and the appliance is placed on a tooth of the physical model against the ridge and on top of the pods. The adhesive fills the space in between the appliance and the facial surface of the tooth and adheres to the model, resulting in a dimensionally correct custom base that is properly aligned with the tooth to account for all five positional elements of a tooth. Once all the orthodontic appliances are applied to the model, the appliances can then be removed from the model and bonded to the patient's teeth in the optimal position using a transfer template.

Abstract: Methods and apparatus fit a set of upper and lower teeth in a masticatory system by generating a computer representation of the masticatory system and computing an occlusion based on interactions in the computer representation of the masticatory system.

Abstract: Systems, methods, and apparatus for creating a mold of a patient's teeth to which are installed orthodontic appliances with a support assembly bonded to a tooth. The appliances may include a corresponding corrective assembly with a wire engaging portion removably coupled to the support assembly. The systems and methods may include removing a corrective assembly from a support assembly, applying unset molding compound to the patient's teeth and corresponding support assemblies, setting the molding compound into a mold, and nondeformably removing the mold from the patient's mouth. The support assemblies may include a marker portion to indicate the position of the wire engaging portion of a corrective assembly that may be removed prior to making a mold and/or installed after making the mold. Marker assemblies adapted to removably engage a support assembly, and including such a marker portion, may be temporarily coupled to support assemblies prior to making a mold.

Abstract: An integrated modular dental measuring apparatus and method of use for producing edentulous dentures, each including a lower dental tray having a removable modular contact plate with an upwardly extending shoulder surrounding a tapered opening, a ball nut retained in the tapered opening, and a post adjustably secured to the ball nut. A modular striking plate may be removably attached to an upper dental tray or an integrated striking sector on a bottom surface of the upper dental tray is utilized to accurately obtain an established occlusal vertical and centric relation positions. The contact plate and striking plate are each configured as snap-in components to the respective trays. Additionally, the contact plate may be utilized as a spacer between the dental trays once the post and ball nut are removed. Finally, the contact plate and striking plate may be removed for functional positioning and esthetic blue printing measurements.

Abstract: An apparatus for separating teeth utilizing a base member having a first end portion, a second end portion, and an intermediate portion. A first spring extends outwardly from the first end portion while a second spring extends outwardly from the second portion of the base member. A lingual shield spans the distal portions of the first and second springs extending from the base member. A pair of tines overlap one another, one tine extending from the base member, the other extending from the shield. The first and second springs urge the meeting or overlapping of the first and second tines in the vicinity of gap for meeting place between a pair of teeth.

Abstract: Holding element for a dental implant including: an engagement section adapted for engagement with a manipulating tool; a retention section joined to the engagement section and adapted for engagement with a package, in particular an ampule; and a clamping section joined to the retention section and adapted for connecting the holding element to the dental implant, the clamping section including a force transmission element, wherein the clamping section further includes a clamping element provided with an elastic means extending in a non-compressed position thereof at and beyond the outer perimeter defined by the force transmission element.

Abstract: A device that assists students in reading by using an opaque sheet to cover an entire page. The sheet has a “window” slot in the center that highlights a single line on the page. The device also has a curved slider that is pivotably attached at the top of the sheet. The placement of the pivot point and the shape of the curved member are such that in the initial position, the entire slot is covered. The student moves the curved slider letter by letter until syllables and words are exposed. As letters, syllables and words are exposed, the student reads them. At no time is the student distracted by other text on the page or the remaining words on the line. Once the line has been mastered, the slider can be returned to the initial position and the sheet slid down to the next line to repeat the process.

Abstract: A measurement system apparatus is provided, which includes an elongated bar and a plurality of discrete measurement unit pieces received along the bar. The elongated bar is metered in accordance with a measurement system. Each measurement unit piece represents an incremental unit of the measurement system. A method is also provided for instructing a student as to a measurement system which generally includes the steps of providing an elongated bar, with the bar being metered along its length to reflect incremental units of a measurement system, providing a plurality of measurement unit pieces corresponding to the metered incremental units of the measurement system, and placing selected measurement unit pieces along the elongated bar.

Abstract: A connector includes a universal conductor, a first connecting body, and a second connecting body. The first connecting body connects to the conductor, and the second connecting body rotatably connects to the conductor. The present disclosure further discloses an electronic device using the universal connector.

Abstract: An electrical connector assembly (1) mounted on a printed circuit board (4) includes at least two electrical connectors (2) located on one side of the printed circuit board (4) and a back plate arrangement (3) located on the other side of the printed circuit board (4) opposite to the electrical connectors (2). The back plate arrangement (3) secures the electrical connectors (2) onto the printed circuit board (4), and includes at least two back plates (30) and at least one connecting bridge (31) interconnecting the at lest two back plates (30).

Abstract: The present invention relates to a contact terminal unit and a socket connector incorporated with the same contact terminal units. A contact terminal unit comprises a plurality of conductive strings twisted into a single strand, and an insulative material encapsulating the strand. The socket connector is incorporated with a plurality of the same contact terminal units.

Abstract: An electrical connector including an insulative housing and a number of terminals. The insulative housing includes an upper substrate and a lower substrate. The upper substrate defines an array of upper holes and the lower substrate defines an array of lower holes corresponding to the upper holes. The terminals are received in the upper and lower holes and each comprises an upper contact, a lower contact electrically connecting with the upper contact and a spring located between the upper contact and the lower contact. The upper contact protrudes a restricting portion for restricting the spring. A diameter of the lower hole is less than that of the upper hole and a distance of the restricting portion. So a top surface of the lower substrate supports the restricting portion.

Abstract: The present invention relates to a contact and an electrical connector having such contacts. The contact is formed as a single piece of elastic metal sheet and includes a base frame and a spring arm restrained by the base frame in a preload state. The base frame includes two side walls each having a stopper projection formed in a plane within which a corresponding side wall is disposed. The spring arm is formed with opposite projections which are pressed down and constrained in position by the stopper projections respectively. The contact can be manufactured in a simple way and presents a high reliability.

Abstract: A card edge connector for mating with an electronic card includes an elongated housing, a number of contacts and a retainer retained to the housing. The housing has a pair of side walls, a central slot between the side walls and a fitting section upwardly extending at one end thereof. The fitting section defines a first U-shaped cavity downwardly extending from a top end thereof and a mounting slot upwardly extending from a lower end thereof and located at outside of the first cavity. The first cavity communicates with the central slot along a length direction of the housing to receive the electronic card. The retainer is retained in the mounting slot and has a locking projection protruding into the first cavity to lock with the electronic card. The mounting slot does not extend through the fitting section to make the retainer hidden in the fitting section.

Abstract: A mobile communications device comprising: a back cover, which comprises an inner surface and a sidewall. A hatch is formed in the sidewall. An ejection device is fixed to the inner surface of the back cover, and which comprises a resilient wall protruding from the surface of the ejection device, and an electromagnet. A groove member is slidably connected to the ejection device, and is aligned with the hatch, and is configured for putting SIM card. The groove member further defines a hole. A hook device is rotatably connected to the ejection device, and is positioned on the electromagnet, and which comprises a hook portion. A first elastic device is fixed to the groove member, and is configured for pushing the groove to move. A torsion spring is fixed to the ejection device, and is configured for driving the hook device to return to the first position.

Abstract: A high-voltage electrical connector includes a strategically placed barrier that acts as an arc shield to reduce the ionization of materials during load break switching, reducing or preventing flashover. An electric stress graded interface design also reduces switching flashover and reduces the fault close energy. Mating features on the piston-contact element and inside the surrounding container accurately guide the piston-contact element as it travels along the container.

Abstract: An electrical connector with a first coupling device with a first connection for a first electrical cable and a second coupling device with a second connection for a second electrical cable and wherein both coupling devices are interlocking for electrical contact. The second coupling device includes a first component to contact the first coupling device by interlocking, a second component that includes the second connection, and a coupling device for electrical coupling of the first component with the second component, wherein both components are flexible relative to each other in radial and/or axial direction.

Abstract: A novel charging interface for rechargeable devices is disclosed herein. The present charging interface has a male plug, formed from circuit board material, which electrically and slidably interconnects with a female socket in at least two orientations. The female socket has electrically conductive biasing means which retain the male plug within the female socket. The charging interface provides electrical contact between the master circuit board of a rechargeable device and a power source.

Abstract: Disclosed herein is a coaxial cable interface port locking terminator including an outer terminator housing and an inner connector body housed within the outer terminator housing. The coaxial cable interface port locking terminator further includes a ratcheting device in operable communication with the outer terminator housing and the inner connector body, the ratcheting device preventing rotation of the outer terminator housing with respect to the inner connector body when the outer terminator housing is rotated in the first direction, the ratcheting device including at least one separate component from the outer terminator housing and the inner connector body. Furthermore, rotation of the outer terminator housing in a second direction does not cause rotation of the inner connector body in the second direction.

Abstract: An electrical connecting device is disclosed and includes a printed circuit board, an electrical connector, and a fixing gum. The electrical connector is used for electrically connecting a chip module onto the printed circuit board and has at least one gum positioning portion formed on at least one sidewall thereof. The gum positioning portion is non-coplanar with respect to the sidewall. The fixing gum adheres between and to the recess and the printed circuit board and is also attached in the recess. Because the gum positioning portion of the electrical connector is non-coplanar with respect to the sidewall, after the fixing gum is sprayed on the gum positioning portion, the electrical connector is reliably mounted on the printed circuit board to be prevented from falling off under an external force during a reflowing or due to shaking.

Abstract: A connector for use in terminating communications cables including electrical contacts (42) arranged to receive wires (30) of a communications cable (60), at least one cover (12, 22) pivotally connected with the connector and having wire-receiving spaces (14, 24), wherein the cover is arranged to move pivotally to bring wires positioned in its wire-receiving spaces into engagement with the contacts (42).

Abstract: A connector assembly includes a connector connected to a number of cables, and a cable management member pivotably attached to the connector. The cable management member includes a pressing plate for binding the cables.

Abstract: The present disclosure relates to a strain relief. In various embodiments, the strain relief includes a strain relief body and at least one alignment feature. The strain relief body is configured to provide support for connection of a cable and/or a wire lead of the cable to a frame. The alignment feature is configured to facilitate alignment of the strain relief relative to the frame. In various embodiments, provided are methods of manufacturing a sensor with a strain relief. The methods may include forming the strain relief about a cable and/or wire leads, wherein the strain relief comprises at least one alignment feature, aligning the alignment feature of the strain relief to a complementary alignment feature of a frame, engaging the complementary alignment feature of the frame with the alignment feature of the strain relief, and electrically coupling the cable and/or wire leads to a circuit.

Abstract: The present invention relates to a splice restraint for use with sleeves that attach to joints. The splice restraint includes a first securing member constructed and arranged to be received in a groove of a first sleeve that is installable on a first leg of a joint, a second securing member constructed and arranged to be received in a groove of a second sleeve that is installable on a second leg of the joint, and a strap connecting the first securing member to the second securing member. The strap having a length determined by the distance between the groove on the first sleeve and the groove on the second sleeve when the first and second sleeves are properly installed on the joint. The splice restraint provides a visual indication that the sleeves are properly installed on the joint, as well ensures that sleeves will not be displaced after the lineman leaves the site.

Abstract: A connector includes a first housing, a second housing and a releaser. The second housing is attached with the first housing. An accommodating part is provided in the first housing. A first projection is provided in the accommodating part. A detector is accommodated in the accommodating part. A lock portion is provided in the detector and is engaged with the first projection. The releaser releases the lock portion from the first projection when the second housing is attached with the first housing.

Abstract: A hot-plugging connector is provided for a hard disk drive (HDD), including an HDD plugging port and a connection port for an SATA cable and a power supply and further includes an HDD plugging indication device having a positive terminal that is supplied with power from a host machine and a negative terminal that is connected to a pin of the connector that is in connection with ah HDD plugging grounding line but is not in direct connection with a grounding line of the host machine. The hot-plugging connector further includes an HDD operation indication device having a positive terminal that is supplied with power from a host machine and a negative terminal that is connected to a pin of the connector that is in connection with an HDD operation grounding line but is not in direct connection with a grounding line of the host computer.

Abstract: A stacked electrical connector (100) has a mounting face to be mounted on a printed circuit board (80). The stacked electrical connector (100) comprises an insulating housing (20) defining a mating port (220) for mating with a mating plug and a cavity (222) below the mating port (220) in a front face (22), and a stacked USB 3.0 connector (40) received in the cavity (222) of the insulating housing (20). The stacked USB 3.0 connector (40) has two stacked mating ports (425, 427) aligned with the mating port (220) of the insulating housing (20) along the front face (22). The cavity (222) extends rearwardly from the front face (22) a front-to-back length (L) equaling a corresponding length of a stacked USB 2.0 connector.

Abstract: A cable assembly includes a housing including a main body and a piece of mushy insulation block on the housing, a plurality of contacts receiving in the main body of the housing, and a plurality of cable. Each of the cable includes at least an inner conductor and an outer insulation layer. The inner conductors are soldered to the contacts and the outer insulation layer each has a part fixed in the mushy insulation block of the housing.

Abstract: A connector assembly includes a housing and substantially identical contacts. The housing is configured to mate with a mating connector. The contacts are arranged in a plurality of sets in the housing. The contacts are configured to electrically couple with the mating connector. Each set of contacts is arranged to communicate a different type of data signal with the mating connector. Optionally, the contacts are formed as substantially identical pins. The different sets of contacts may concurrently communicate the different types of data signals.

Abstract: A shield case of the invention includes a base of a generally U-shape in front view having widthwise end portions, the end portions each having a front surface and a back surface; a pair of folded-back portions, provided on the front the back surfaces of the end portions of the base and folded back backward, or alternatively provided on the back surfaces of the end portions of the base and folded back forward; a pair of side walls, extending from the folded-back portions along a length of the end portions of the base; a pair of first locking pieces, extending downward from the side walls; and a linking portion adapted to link between the side walls. The base, the side walls, and the linking portion define a body containing portion.

Abstract: An electrical connector includes an inner shell having a bottom board, two side boards and a top board to define a receiving space thereamong, an insulating body having a base portion mated with a rear of the receiving space and a tongue portion extended forward from the base portion and stretching into a front of the receiving space, a plurality of terminals disposed in the insulating body, and an outer shell mounted around the inner shell. The outer shell has a base plate electrically covered on the top board and at least one soldering tail soldered to a printed circuit board so as to achieve a ground function of the inner shell through the outer shell and the outer shell further prevents the water which enters the receiving space from an opened front end mouth of the receiving space from flowing onto the printed circuit board.

Abstract: An electrical connector for abutting against a metal plate, comprises an insulative housing defining a main body and a tongue plate extending forwardly from the main body, a plurality of terminals retained in the main body and extending into the tongue plate, a metal shell shielding the insulative housing and comprising an upper wall, a pair of side walls extending downwardly from two lateral sides of the upper wall, and a bottom wall in parallel with the upper wall, and a spring member defining a securing portion fixed to the shell and a resilient resisting portion abutting against the metal plate. The securing portion defines a ceiling plate portion shielding the fingers on the upper wall, and a pair of side plate portions extending downwardly from two lateral sides of the ceiling plate portion and shielding the fingers on the respective side walls.

Abstract: A compression sleeve is combined to a microphone cable. A small-diameter cylindrical portion is compressed on the outer peripheral side of a folded portion of a shielding cable. Thus, the compression sleeve is electrically connected to the shielding cable. A large-diameter cylindrical portion covers a connection portion between a connector and the microphone cable. The large-diameter cylindrical portion and a connector housing are fitted with each other. A bush covers the compression sleeve. Inner periphery of the connector housing is in contacts and presses the outer periphery of the large-diameter cylindrical portion. The large-diameter cylindrical portion has a flange on the outer surface. The flange contacts and presses an end of the connector housing on closer to the microphone cable by the shoulder portion of the bush.

Abstract: An electrical connector assembly includes an insulating housing, a plurality of first contacts received in the insulating housing, at least one detecting pin and a controlling circuitry. At least partial first contacts unitarily includes first contacting portions transferring first data signals and second contacting portions transferring second data signals. The detecting pin produces two sets of different detecting signals corresponding to the first data signals and the second data signals. The controlling circuitry controls said data signals output data signals through different output terminals.

Abstract: An electrical card connector (100) includes an insulative housing (1), a set of first contacts (21), and a metal shell (4) covering the insulative housing. The insulative housing has a receiving space (15) for receiving a first card and a bottom wall (11) under the receiving space. The bottom wall has a set of slots (111) extending along the first card insertion direction. The slots include a special slot (110) having a protrusion (1101) extending thereinto. The contacts have first retaining portions (214) retained in the insulative housing, first contacting portions (212) received in the slots (111) and bending upwardly into the receiving space (15) for mating with the first card, and first tail portions (215) extending from the first retaining portions for being mounted to a PCB. The first contacts include a special contact (210) having a connecting portion (216) extending along the special slot (110) and located between the first contacting portion (212) and the first retaining portion (214).

Abstract: A socket connector is configured for receiving a first card and a second card. The socket connector includes a latching seat, a plurality of latching plates, and a shielded case. The latching seat includes a first surface and an opposite second surface, the first surface defines a sliding groove, a second surface defines a receiving slot. The latching plates extend from edges of the first surface. The shielded case is secured in the receiving slot, and defines an entrance. The first card is received in the sliding groove and latched by the latching plates, the second card is inserted into the shielded case through the entrance. The disclosure further discloses an electronic device using the socket connector.

Abstract: An apparatus for connecting a router blade to a router chassis is provided. The apparatus includes an engagement portion; a first side portion coupled with the engagement portion; and a second side portion coupled with the engagement portion. The engagement portion includes a connector system that is operable to couple a router blade with a router chassis. The first side portion is operable to engage the router blade and the router chassis. The second side portion is operable to engage a router blade and the router chassis. The engagement portion, first side portion, and second side portion are sized to engage the router chassis and receive the router blade.

Abstract: A transmission cable provides communication between a computer and an electronic device. The transmission cable includes a first plug and a second plug. The first plug connects with the electronic device. The second plug connects with the computer. The first plug includes a data receiving socket, a data transmission socket, and a grounding socket. The grounding socket is positioned between the data receiving socket and the data transmission socket. The second plug is a D-sub connector.

Abstract: An electric plug device and a method for extending and replacing a malfunctioning female power outlet are provided. The electric plug device comprises a mains plug, an extension cable, and a power extender. The mains plug comprises a male power inlet and multiple first female power outlets. The male power inlet is electrically connected to the first female power outlets and provides an electrical input pathway. The first female power outlets provide electrical output pathways. The malfunctioning female power outlet may be one of the first female power outlets. The extension cable electrically connects the malfunctioning female power outlet to the power extender. The power extender comprises multiple second female power outlets. The malfunctioning female power outlet is connected to the second female power outlets by the extension cable. The extension cable and the power extender enable the extension and the replacement of the malfunctioning female power outlet respectively.

Abstract: An electrical connector assembly includes an insulative housing (1) with a plurality of terminal passages (12), a plurality of contacts (2) received in the corresponding terminal passages, and a shell (5) enclosing the insulative housing. The shell has a top shell (51) and a bottom shell (52) assembled with each other, the bottom shell comprises a frame-shaped base portion (520) and an extension portion (523) extending backwards and bent downwards from the base portion. The base portion defines a top wall (5201), a bottom wall (5202) and a pair of side walls (5203) connecting with the top wall and the bottom wall, the extension portion has a bottom surface lower than the bottom wall of the base portion and a pair of side portions bent upwards from lateral edges of the bottom surface, the side walls of the base portion and the side portions of the extension portion have a locking mechanism engaging the base portion with the extension portion.

Abstract: An electrical connector includes an insulative housing and a plurality of first terminals secured in the housing. The insulative housing includes a base with a front face, a tongue portion extending forwardly from the front face of the base and a plurality of passageways located on a first side face of the insulating housing. The passageways extend from the tongue portion to the base across the front face of the base. The passageways communicate with an exterior through the first side face along a whole length thereof. The plurality of first terminals are received and retained in the passageways. Each first terminal includes a contact portion located on the tongue portion and exposing to the first side face of the tongue portion, a retention portion located on the base portion and a tail portion.

Abstract: An electrical connector includes a limiting member having upper and lower sides and a piercer hole formed therethrough; two spaced-apart clamping structures formed on the upper side of the limiting member in parallel manner and sandwiching the piercer hole therebetween, each clamping structure including a protrusion projecting upward from the upper side and having a top portion, a cross-section width gradually larger toward the top portion and a recess adjacent to the protrusion; and a terminal disposed on the lower side of the limiting member, and having a piercing section extending into the piercer hole to pierce through a cable material so as to be exposed from the upper side of the limiting member. A gap defined by an adjacent pair of the protrusions is smaller than an adjacent pair of the recesses in order for clamping the cable material.

Abstract: An electrical connector (100) for insertion of an electrical plug, includes an insulative housing (1) having a receiving cavity (13) to receive the electrical plug in a front-to-rear direction and a plurality of receiving slots (14) communicating with the receiving cavity, and a set of terminals (2) received in the receiving slots and including first terminals (21). Each first terminal has a vertical flat first base portion (212) retained in the insulative housing and extending along the front-to-rear direction, a first contacting portion (211) protruding into the receiving cavity to electrical contact with the electrical plug, and a first tail portion (213) to be mounted on a printed circuit board (PCB). Both the first contacting portion (211) and the first tail portion (213) simultaneously extend from one of an upper edge and lower edge of the first base portion (212).

Abstract: An electrical connector (100) having an inserting port (102) for receiving a corresponding plug, includes an insulative housing (1) and a plurality of contacts (4) retained in the insulative housing (1). Each contact (4) has a first portion (41) extending horizontally into the inserting port (102), a first bending portion (43) bending downwardly from a rear end of the first portion (41), and a second portion (42) extending downwardly from the first bending portion (43). The contacts (4) are arranged in two groups. The first portions (41) of each contact group (401, 402) are arranged in a row along a transverse direction respectively. The second portions (42) in each contact group (401, 402) are arranged in at least two rows along a front-to-back direction respectively. The first bending portions (43) of the contacts (4) in each contact group are arranged in a line along the transverse direction respectively.

Abstract: A downsized modular jack with high surface-mounting performance. The modular jack has a housing and a terminal holder assembled thereto. The housing has a rear wall formed with a terminal insertion through-hole extending through a thickness of the rear wall, and a latch section insertion through-hole positioned beside the terminal insertion through-hole. The latch section insertion through-hole has an engaged portion positioned within the thickness of the rear wall. The terminal holder has a connector terminal extending through the terminal insertion through-hole and a latch section engaged with the engaged portion and positioned within the thickness of the rear wall upon assembly of the terminal holder into the housing.

Abstract: A keystone jack (10) includes a cover body (1), a lining body (2), a carrier body (3), a printed circuit board (4), a housing (5), and a flap (6). The cover body (1) includes a space (11). The space (11) includes a cruciform partition with an elongated partition plate (13) perpendicular interlaced a short partition plate (14). The lining body (2) has two edges (21). A connection part (22) is between the two edges (21). A stud (23) and a separation plate (24) are between the connection part (22) and the two edges (21). The stud (23) has a first channel (231). The separation plate (24) has a second channel. When the lining body (2) is installed in the space (11), the elongated partition plate (13) and the short partition plate (14) in the space (11) are through the first channel (231), the second channel (242), and the opening (25) to form a double-cross isolation structure.

Abstract: An exemplary electrical connector assembly includes an insert connector and a receiving connector. The insert connector includes a first pin and a second pin. The receiving connector defines a first and a second holes corresponding to the first and second pins of the insert connector, respectively. The first hole has a shape and a size matching the first pin, and the second hole has a shape and a size matching the second pin. The first and second pins of the insert connector are respectively extendable into and engagable in the first and second holes of the receiving connector. A transverse cross sectional area of the second pin is larger than that of the first pin, whereby the second pin of the insert connector is prevented from being received in the first through hole of the receiving connector.

Abstract: A power connector includes an insulative housing, a power contact retained in the insulative housing and a key member. The insulative housing defines a receiving chamber recessed from a mating face and a rear portion located at the rear of the receiving chamber. The rear portion defines a mounting hole in communication with the receiving chamber and a first locking arm having a first hook protruding into the mounting hole. The first hook is lockable with the key member in order to prevent the key member from withdrawing from the mounting hole. The key member further defines a slit through which the first hook is forwardly exposed to an exterior. As a result, a tool can be inserted into the slit to push the first hook so as to unlock the first locking arm with the key member.