Abstract: With the present invention, conductor grids for electronic housings and a manufacturing method for such conductor grids are provided. According to the invention, the conductor grid is produced from two metal strips (130, 110, 140) welded along the joint edge (150), with only one of the two metal strips needing to have a surface suitable for the wire bonding. The amount of the conventionally used, plated starting material can be considerably reduced in this way.

Abstract: An electric junction box to prevent stress from working at a junction of conductive pattern of a connector terminal mounted on a printed wiring board and curtail its size, comprises, a printed wiring board, a connector including a terminal connected with a conductive pattern on the printed wiring board, and a connector housing accommodating the terminal, and a cover adapted to receive the printed wiring board therein and including a hole disposed on an outer wall of the cover and passing the connector therethrough. The lower cover is provided with a support adapted to overlap with a part of an edge of the connector housing surrounding the terminal, and position the part between the printed wiring board and the support.

Abstract: The present invention discloses a compact server power supply having high power density has a casing, a main printed circuit board, a sub-printed circuit board, a power supplying circuit, a power output terminal set and a fan. The power supplying circuit has a primary side circuit unit, a transformer and a secondary side circuit unit. Electric elements of the primary and secondary side circuit units and the transformer are soldered on the main printed circuit board except parts of the electric elements of the secondary side circuit unit are soldered on the sub-printed circuit board. The sub-printed circuit board is vertically mounted and soldered on the main printed circuit board, so the length of the main printed circuit board is shortened to implement the server power supply having a compact size and high power density.

Abstract: An electrical component cover may include a first portion and a second portion which are hingedly attached to one another and at least one projection extending from one of the first portion and the second portion. A locking member engages the at least one projection so as to hold the first portion and second portion together to cover an electrical component disposed in a void defined by the first portion and the second portion.

Abstract: A method and structure for implementing enhanced dimensional stability with a graphite nanotube hybrid socket. A socket housing wall includes a plurality of aligned graphite nanofibers. The plurality of aligned graphite nanofibers distributing heat and providing enhanced dimensional stability. For example, the plurality of aligned graphite nanofibers more evenly distributes heat when the socket is undergoing solder reflow processes, thereby reducing strain.

Abstract: Secured broadband devices and methods for providing broadband communication are provided. A broadband device may include a housing, at least one broadband component, and a securing mechanism. The at least one broadband component may be situated within the housing and configured to receive a broadband signal. Additionally, the at least one broadband component may be configured to output at least a portion of the broadband signal for receipt by one or more external devices. The securing mechanism configured to secure the housing to an electrical outlet.

Abstract: An electronic device casing includes a peripheral wall portion enclosing an outer circumference of a substrate provided with a connector, an opening portion formed in the peripheral wall portion to have an opening from which the connector is exposed to an exterior, an upper plate portion covering an upper part of the peripheral wall portion, and a protrusion portion protruding from an end part of the upper plate portion and covering an upper part of the connector exposed from the opening portion. The protrusion portion has a first end part connected to the upper plate portion, and a second end part opposite from the first end part in a protruding direction of the protrusion portion. The second end part is higher than the first end part.

Abstract: An adjustable box extender allows an electrical device to be aligned with a dry wall face. The adjustable box extender includes a fixed ring attached to an electrical box and an adjustable ring adjustably attached to the fixed ring. The adjustable ring includes rectangular top and bottom open back pockets. Rectangular blocks reside inside each pocket. Adjusting screws are held by the adjustable ring with screw heads exposed on the face of the adjustable ring, neither advancing nor retreating with respect to the adjustable ring, and free to rotate with respect to the adjustable ring. The screws engage threads in the blocks and advance and retreat the block out of and into the pockets when the screws are turned, thereby extending the adjustable ring away from the fixed ring to adjust for dry wall thickness. Electrical device screws sandwich the adjustable ring between the electrical device and the fixed ring.

Abstract: An electric connection box has a circuit board, a conductive member (a first bus bar, a second bus bar, a first connection fitting, a second connection fitting, or a lead terminal) connected to the circuit board and extending in the direction away from the circuit board, a relay provided at the end of the conductive member which is located on the opposite side of the circuit board, and a case for receiving the circuit board and having an opening provided at a position corresponding to the relay. The relay is exposed at the opening to the outside of the case.

Abstract: A molded portable single-member housing assembly for securing and protecting elongated elements having an aesthetically pleasing design is provided. The molded portable single-member housing assembly having a lid and a depressed housing portion connected via a live hinge. The lid is engaged by a user via an aperture which permits the user to physically manipulate the lid rotatably about a hinge axis. The elongated element is store or housed within the base portion and permitted access out of the housing via at least two indentions. Further, the molded portable single-member housing assembly has at least four legs.

Abstract: An electrical box assembly is disclosed including an electrical box having at least one sidewall, the sidewall including an aperture formed therein to receive a threaded fastener. A mounting plate is provided that is attached to a support member and includes an elongate slot formed therein, wherein at least a portion of the slot is aligned with the aperture of the sidewall. A clamp bar abuts the mounting plate and has a threaded aperture formed therein, wherein the fastener extends through the aperture formed in the sidewall and the elongate slot formed in the mounting plate and is threadably received in the aperture formed in the clamp bar to movably attach the electrical box to the mounting plate.

Abstract: A cable gland and gasket ring assembly includes a gasket ring and a cable gland formed of a shell, a collar, a packing ring and a connection ring for securing a cable, or, a cable and a flexible conduit, to a junction box. The gasket ring is an annular member, having a first end face, a second end face opposing the first end face, a plurality of annular ribs concentrically arranged on the first end face and an annular convex portion located on the second end face. The connection ring has a recessed portion on a stop flange segment for receiving the annular convex portion and a tapered inner surface located on the inside of the stop flange segment for stopping against a tapered outside surface of the packing ring.

Abstract: An electronic apparatus for a vehicle, includes an electronic device, a waterproof housing that receives the electronic device, and a filter. The housing has a ventilation hole that penetrates through a housing wall of the housing. The filter is attached to a filter attachment portion of the housing wall to cover the ventilation hole. A wall surface of the ventilation hole includes a slope surface section that has an increasing cross-sectional area, which progressively increases from an inner end to an outer end of the slope surface section toward an outer surface of the housing wall in a penetrating direction of the ventilation hole. Furthermore, a distance between the filter attachment portion and the outer surface is larger than that between the inner end of the slope surface section and the outer surface in the penetrating direction.

Abstract: A capacitive touch sensitive housing comprises: a housing wall; an array of capacitive touch sensor pads formed on the housing wall; a plurality of conductive bonding pads formed on the housing wall; and a plurality of conductive lines formed on the housing wall. Each conductive line extends from a respective one of the touch sensor pads to a respective one of the bonding pads and cooperates with the respective one of the capacitive touch sensor pads and the respective one of the bonding pads to define a touch sensor unit having a layered structure including an active metal layer and an electroless deposited metal layer. The active metal layer contains an active metal capable of initiating electroless deposition.

Abstract: A heat shield module includes top and bottom portions made of a high heat material. The top and bottom portions attached to each other and form an enclosure with an opening sized to receive an electronic component package with no intervening insulating material between a component and the top and bottom portions. One or more legs are mounted to either the top portion or the bottom portion. The legs are configured to attach the enclosure to a substrate and to form a gap between the bottom surface of the bottom portion and a top surface of the substrate.

Abstract: This disclosure describes examples of an apparatus to enclose components of a switching assembly of an automatic transfer switch. In one embodiment, the apparatus, or arc chamber cover, has a housing made of material with optical properties that permit observation of the interior of the housing. A mounting assembly couples to the housing. The mounting assembly secures the apparatus to the automatic transfer switch. In one example, the mounting assembly comprises feet comprising a material with mechanical properties that can withstand pressure and other forces inside of the interior chamber. The apparatus also includes one or more baffles to control the flow of gasses and control electric arcs within the switching assembly.

Abstract: Disclosed is a member that contains electronic components. Using the member, when, for example, a vehicle or the like carrying electronic components such as an inverter collides with an external object, there is prevented damage to a housing containing the electronic components, which would otherwise occur due to interfering objects. Furthermore, the disclosed member can dissipate heat produced by the contained electronic components. The member includes a housing for containing electronic components, a cooling passage that is provided inside the housing and uses a refrigerant to cool the electronic components, and a heat dissipation part that dissipates heat from the cooling passage and prevents the housing from being damaged by impacts from external interfering objects.

Abstract: A system is employed to mount an electronic component on a shelf. A first restraining device is associated with a support structure in a first location. The first restraining device is configured to operably engage a mating piece associated with the electronic component. The support structure is configured to guide an electronic component along an axis of insertion when introduced to the shelf. A second restraining device is associated with the support structure in a second location. The second restraining device is configured to secure the electronic component via one or more fastening elements.

Abstract: A coated sensor or RFID housing is provided including at least one housing cover (1) which is twice coated in at least some areas. The housing cover (1) includes a base (A), on which a first coating (B) of a porous ceramic is provided and on which a second coating (C) is also provided. The base (A) is formed by a metal, the first coating (B) is formed by an oxide ceramic with a lamellar structure and the second coating (C) is formed by a fluoropolymer varnish. The second coating (C) is at least partially incorporated into the first coating (B). The outer structure of the whole coating (4) is formed over the major part of the surface of the structure by the second coating (C) and independently from the structure of the first coating (B).

Abstract: Frames for plug connectors capable of being a reduced size may include features to support contacts, house circuitry for coupling with the contacts, facilitate the flow of molten material during the molding of the frame, and allow for ease of insertion and removal of the plug connector to and from a corresponding receptacle connector. For example, a frame may include ledges, interlocks, and rounded and tapered openings. Methods for manufacturing the frame are also provided.

Abstract: Apparatus and systems provide processing capabilities while utilizing power received via an Ethernet. A computing device has an Ethernet connector for receiving power and data, internal power supply circuitry for extracting power from the Ethernet connector, and a Central Processing Unit (CPU) for receiving the power. A housing may encompass the components of the computing device and be configured for installation in an electrical wall box. The housing may include a display or connectors for peripherals. A system includes at least two computing devices. Each device has an Ethernet connector for receiving power and communicating with other devices and are installed within a housing within an electrical wall box. One device has a display for receiving user input instructions for transmittal to another device, while another device has a peripheral connector for controlling a peripheral according to the instructions.

Abstract: A server cabinet includes a rack and a power distribution unit (PDU). The rack includes a top plate, a bottom plate, and a side plate connected between sides of the top plate and the bottom plate. A through hole is defined in the top plate, near a front end of the top plate. An opening is defined in the bottom plate, near a front end of the bottom plate. The PDU is fastened on an inner side of the side plate, near a front side of the rack. A power cable of the PDU is extendable out of the rack through the through hole or the opening.

Abstract: There is provided an electrical device's casing capable of reducing vibration generated by the electrical device while the device is operating. A converter case (10) encasing a reactor which generates vibration while operating includes: a plate-shaped base (12) having a front surface and a rear surface, the reactor being to be mounted on the front surface; a reactor case (30) erected from the front surface of the base (12) and surrounding an outer periphery of the reactor; a reinforcing portion (40) provided outside the reactor case (30) and configured to increase stiffness of the base (12); and a rib (50) coupling the reactor case (30) and the reinforcing portion (40) to each other.

Abstract: Enclosures for electronic devices are provided. These enclosures can be integrally formed with a full or partial receptacle connector shell for receiving electrical connectors such as audio connectors or plugs. For example, an enclosure made from a polymer can be integrally formed with an audio jack shell in an injection molding process. As another example, an enclosure can be integrally formed with one or more full or partial walls of an audio jack shell to form a single piece of polymer or metal and the remaining walls of the audio jack shell can be overmolded or assembled to the polymer or metal walls of the audio jack and proximate portions of the enclosure to form a full or complete audio jack shell.

Abstract: There is provided an attachment structure of an electrical equipment accommodation box in which an electrical equipment accommodation box accommodating therein an electrical component is attached to a wall surface of a vehicle body-side by a bracket. The bracket has a receptacle shape in which a bottom part is formed at a side facing the wall surface. The bottom part of the bracket is provided with a connection part for connecting the bracket and the wall surface each other.

Abstract: A slit opening 8 is formed on a lower principal surface 6a of a hard disk case 6, in the vicinity of the inner side of an angle part formed by a lower left lateral wall 6e and an opposing lower lateral wall 6c. A hard disk drive 7 is placed in the hard disk case 6. When the hard disk drive 7 is subjected to vibration caused by disturbance on the hard disk case 6, elastic deformation of an angle part 8a of the slit opening 8 occurs using an axis 8b as a center to reduce vibration of the hard disk drive 7. Thus, it is possible to reduce the thickness of the hard disk case 6. With such a configuration, a hard disk case that is for housing an electronic component and that can have a small thickness can be provided.

Abstract: An electrical box may include a housing body, enclosing a cavity, which includes an access opening extending across a first plane of the housing body, and which includes a plurality of mounting outlets configured to enable electrical devices to be mounted to the housing body to face a plurality of different directions. The electrical box may further include one or more mounting brackets attached to the housing body and a cover plate shaped to match and cover the access opening of the housing body. The housing body may include a first side wall and second side wall aligned to form an inside corner of the housing body, wherein the inside corner of the housing body is configured to align with an outside corner of a building or a structure, and wherein the first side wall and the second side wall are perpendicular to the first plane.

Abstract: The invention concerns a control box arrangement (1) with a control box (2) and a mounting plate (4) having a front side (18) and a rear side (11) and an opening (5) in which the control box (2) is inserted from the front side (18). It is endeavored to enable simple mounting and dismounting. For this purpose, the control box (2) includes at least one locking bar (7), which rests on the rear side (11) in a mounting position (9), a mounting element (10) being insertable in the control box (2) to displace the locking bar (7) to the mounting position (9).

Abstract: The invention relates to an electronic module (2) comprising: an electronic card (4) on which electronic components (10) are disposed, two covers (6, 8), disposed on either side of the card (4). The cover (6) facing the components (10) has a central part (22) extending at a distance from the card (4) and a flanged edge (24) turned toward the card (4), prolonging one of the two opposite sides of the central part (22). This flanged edge (24) is prolonged by a flat support (26), extending in a plane parallel to the plane of the electronic card (4), the card (4) being added onto the said support (26). The covers (6, 8) bear indexing means (34), the electronic card (4) having indexing holes (36) cooperating with the indexing means (34) during positioning of the card (4) between the covers (6, 8).

Abstract: The configurations of a two way wiring device are provided in the present invention. The proposed device includes a case having a first side, a second side opposite to the first side, a third side formed between the first side and the second side and an open bottom passing therethrough a first conducting wire, wherein the third side includes a first side segment, a second side segment and a middle segment located between the first and the second side segments, and a conducting wire guiding pathway formed on the case and the first conducting wire passing the pathway and wired out of the case through one of the first side segment and the second side segment.

Abstract: A cover opening/closing mechanism, including a housing having an opening; a flexible cover movable between a closed position and an opened position; a first locking mechanism; and a second locking mechanism, wherein a first distance by which a pair of members of the first locking mechanism slide and move with respect to each other in order to bring the first locking mechanism to a locked state is longer than a second distance by which a pair of members of the second locking mechanism slide with respect to each other in order to bring the second locking mechanism to a locked state. An external force for causing the pair of the members of the first locking mechanism to slide and move with respect to each other is weaker than an external force for causing the pair of members of the second locking mechanism to slide with respect to each other.

Abstract: The present invention relates to a method for the production of an expandable circuit carrier in which a starting material for an expandable substrate is applied on an electrically conductive foil which forms an expandable substrate layer which is connected to the foil, after which the foil is structured such that it forms a conductor structure having at least one expandable strip conductor. The present invention further relates to an expandable circuit carrier which can be produced by the method.

Abstract: An adjustably mountable electrical device with one or more yokes coupled to the electrical device, at least one electrically conductive strap, and an electrical device face, wherein a distance between the electrical device face and at least one of the yoke, the strap and an electrical box mounting screw aperture is adjustable after the electrical device is mounted to the electrical box. The system may comprise mounting flanges that may have threaded hubs or the system may further comprise an electric device having front and back shells moveable on a track in response to depression of a button allowing for movement of the back shell so that the electric device may be mounted having its face coplanar with a front wall surface.

Abstract: A method of fabricating chip carriers suitable for use in packaging integrated circuits and other electronic, electro-mechanical and opto-electronic devices is described. In general, a number of wires (or wires and rods) are arranged in parallel in a wiring fixture. After the wires are positioned, they are encapsulated to form an encapsulated wiring block. The wiring block is then sliced to form a number of discrete panels. Preferably, the various wires are geometrically positioned such that each resulting panel has a large number of device areas defined therein. The encapsulant in each panel effectively forms a substrate and the wire segments in each panel form conductive vias that extend through the substrate. The resulting panels/chip carriers can then be used in a wide variety of packaging applications.

Abstract: An electrical junction box includes: a case main body provided with a wire receiver for receiving an end of an electric wire at a lower surface side; and a lower cover for covering the lower surface. Further, the electric wire is routed in between the lower surface of the case main body and the lower cover, and guided out from a wire outlet composed of a notch and a projecting piece. A biting prevention piece is projected from an edge of the lower cover toward the lower surface. A receiving groove for receiving the biting prevention piece is provided on an inside of a peripheral wall of the case main body. After the tip of the biting prevention piece pushing aside the electric wires to an inside of the case main body is inserted into the receiving groove, the lower cover is attached to the case main body.

Abstract: A terminal box comprises a box casing 2 including terminal elements incorporated into the interior thereof; a lid element 4 for closing an opening of the box casing; and an engaging mechanism 7 for fixedly engaging an engaging element 5 provided in the lid element with an engaged element 6 provided in the box casing by pressing the lid element against the box casing. The engaging element includes a projecting piece 21 extending in a pressing direction of the lid member, and an engaging pawl 23 extending in a direction vertical to the extending direction of the projecting piece and provided in part of the projecting piece other than a distal end portion 22 of the projecting piece. The engaged element has a receiving hole 24 opening toward an outer side of the box casing and allowing the distal end portion of the projecting piece to be exposed to the outside when engaged with the engaging pawl.

Abstract: Terminal pins that include a refractory metal forming a full perimeter weld connected to a terminal block including a dissimilar metal incorporated into feedthrough filter capacitor assemblies are discussed. The feedthrough filter capacitor assemblies are particularly useful for incorporation into implantable medical devices such as cardiac pacemakers, cardioverter defibrillators, and the like, to decouple and shield internal electronic components of the medical device from undesirable electromagnetic interference (EMI) signals.

Abstract: A protective enclosure for an electronic device is provided. The protective enclosure includes a first case member, a second case member, a rigid plunger, and an electrical conductor. The second case member is hingeably attached to the first case member to form a shell that includes a watertight enclosure for the electronic device. The rigid plunger is adapted to transmit a mechanical motion from outside the shell to the electronic device inside the shell. The electrical conductor includes an electrical plug to mate to an electrical jack of the electronic device in the watertight enclosure to electrically connect the electronic device to a device outside the shell.

Abstract: An electric junction box for preventing rattle between cassette blocks assembled to each other before being fixed to main body case, includes a first cassette block a second cassette block configured to be assembled to each other by locking structure, an electric distribution member for distributing power to the second cassette block from the first cassette block. The electric distribution member includes an input power source line, and a pair of connectors connected with both ends of the input power source line and engaged with the lower surface of the first cassette block and the lower surface of the second cassette block, respectively. A direction of drawing the input power source line out of each of the pair of connectors is arranged perpendicular to a direction engaging the pair of connectors with the first cassette block and the second cassette block.

Abstract: Disclosed herein are a power module using sintering die attach and a manufacturing method of the same. The power module includes: a substrate having an insulating layer formed on a surface of a metal plate; a circuit layer formed on the substrate and including a wiring pattern and an electrode pattern; a device mounted on the wiring pattern; a sintering die attach layer applying a metal paste between the wiring pattern and the device and sintering the metal paste to bond the wiring pattern to the device; and a lead frame electrically connecting the device to the electrode pattern, whereby making it possible to simplify and facilitate the process, increase electrical efficiency and improve radiation characteristics, and manufacture firm and reliable power module.

Abstract: A cord housing device includes an enclosure, a cord capable of being stored in the enclosure and drawn out from the enclosure, and a plug provided at an end of the drawing out side of the cord, and connectable to an external power supply. In a natural state, the cord is formed so as to bend back at a bent provided at intervals in the length direction of the cord, and extend in a meandering manner. In the enclosure, the cord is stored such that the region of the cord located between bents overlap each other.

Abstract: An exemplary embodiment of an electronic device includes a cover including a first hole, and a heat dissipating assembly. The heat dissipating assembly includes a movable board including a second hole and slidably connected to the cover, and a heat magnifying device received inside the cover and adjacent to a heat element. The heat magnifying device includes a moving end secured with the movable board. When the heat element is maintained room temperature, the first hole and the second hole are staggered from each other to seal the cover. When heat generated by the heat element heats the heat magnifying device and causes the moving end of the heat magnifying device to move under thermal expansion and drive the movable board to slide relatively to the cover, and the first hole of the cover and the second hole of the movable board are communicated with each other.

Abstract: A bus bar is made by punching a single metal plate and by folding two-dot chain line portions. The bus bar includes: a power input portion into which the power is inputted; a tuning-fork-shaped terminal into which a relay terminal is inserted; a plurality of substrate connecting portions soldered to a printed circuit board; and a routing portion. The routing portion includes: a trunk portion extended in a band shape from the power input portion; a plurality of branch portions branching off from the trunk portion to the tuning-fork-shaped terminal and the substrate connecting portions. A width of the trunk portion is formed gradually narrower as extending away from the power input portion. Namely, widths of the trunk portion further away from the power input portion than the branch portion are formed narrower than a width from the power input portion to the branch portion.

Abstract: A power supply unit is provided for supplying low voltage power. The supply unit includes at least one power plug contact connectable to a supply voltage; at least one output lead for outputting the low voltage; and a voltage transformer unit having at least one electronic component for transforming the supply voltage to the low voltage. The power supply unit includes a casing made of a casing base element and a lid element, such that the power plug contact is held in the casing base element or in the lid element in such a way that it can be plugged into a power socket. The voltage transformer unit is mounted on a circuit carrier which is arranged in the casing base element in such a way that a defined first region of the circuit carrier is received in a casting space filled with an electrically insulating casting compound.

Abstract: A mobile terminal comprises: a case forming appearance of the mobile terminal, and having a printed circuit board (PCB) therein; and a connection terminal mounted to the case, and configured to electrically connect the PCB to an external device, wherein the connection terminal comprises: an external terminal supported by an outer surface of the case; and an internal terminal elastically contacting a terminal of the PCB, connected to the external terminal, and supported by an inner surface of the case.

Abstract: An electrical component (100) includes a housing (1), a number of terminals (2) molded within housing and at least one electrical element (3). The housing has at least a side wall (11) having a number of recesses (112) and an internal cavity (15). Each terminal has a first end (23) extending to a bottom of the side wall and formed with a platform portion (231) located onto the bottom of the side wall and aligned with the corresponding recess. The electrical element has a number of wires (321) wrapped thereon. One end of the wire extends outward the cavity through the recess and is soldered onto the corresponding platform portion.

Abstract: A thermal module for mounting to and using with a solar inverter includes a heat sink, at least one cooling module, and a thermal insulator. The heat sink has a heat-receiving portion and a heat-radiating portion, and the cooling module has a hot side and a cold side. The hot side of the cooling module is in contact with the heat-receiving portion of the heat sink while the cold side is in contact with a heat-producing source on the solar inverter. The thermal insulator is provided in a space between the heat-receiving portion of the heat sink, the cooling module, and the heat-producing source of the solar inverter. With the cooling module provided between the heat sink and the solar inverter, the solar inverter can have largely upgraded heat dissipation efficiency.

Abstract: An electronic device housing is disclosed. The electronic device housing, the electronic device housing comprises a cover comprising a base board, a receiving portion defined in the base board, and a fixing portion in the receiving portion; a silicone rubber membrane; and a panel received in the receiving portion, the panel is fixed to the cover via the silicone rubber membrane.

Abstract: A mounting tray for a supporting and electrical component relative to an opening in a wall can include a rear wall that defines an opening. A sidewall can extend outwardly from the rear wall and collectively define a pocket with the rear wall. The sidewall can have an outer lip. An outer flange can extend around the sidewall at a position intermediate to the outer lip and the rear wall from a first location at the sidewall to a second location at an outer perimeter. The outer perimeter of the outer flange is offset inboard of the opening in the wall in an installed position.

Abstract: A sealing cover (10) is provided for closing an opening of an equipment case that accommodates electric equipment of a car. The electric equipment includes a circuit with an operation control portion for switching a main circuit from an operating state to a shutdown state in accordance with signals inputted to an input terminal thereof. The sealing cover (10) has a cover body (11) mounted on the equipment case to close the open part. An interlocking connector (35) is provided on the cover body (11) and is connected to the input terminal when the cover body (11) is mounted on the equipment case and disconnected from the input terminal when the cover body (11) is removed from the equipment case to switch the main body circuit from the operating state to the shutdown state.