Abstract: A structure of an electrical signal switch connector is provided, which includes an insulating housing, an elastic terminal, a fixing terminal and a shielding housing. The insulating housing is configured for receiving the elastic terminal and the fixing terminal respectively. The elastic terminal has an elastic arm with an opening. The fixing terminal has a fixing arm. The elastic arm of the elastic terminal elastically abuts against the fixing arm of the fixing terminal. A penetration hole of the insulating housing is configured for penetrating a terminal of a docking connector. The shielding housing covers on a surface of the insulating housing, such that the foreign substances in the environment are kept from attaching to the elastic arm of the elastic terminal.

Abstract: An electrical penetrator assembly has a ceramic housing with a through bore, a first electrical conductor extending through at least part of the bore and terminating and having an outer end outside the bore and a second end, and a second electrical conductor having a first end in electrical communication with the second end of the first conductor and an outer end. The second end of the first conductor and the first end of the second conductor are in electrical communication and at least one of the conductors is movable relative to the other conductor to accommodate expansion and contraction as a result of temperature variations, and first and second seals extend between respective ends of the ceramic housing and the first and second conductor, respectively.

Abstract: An electrical connection device, including two conductors (12 and 14), in which at least one of the two conductors is made of aluminum, each conductor has a contact surface, and a conductive element (1) is inserted between the contact surfaces of the conductors. The inserted conductive part has a foam skeleton having open cells of a metal selected from the group consisting of iron, nickel, and the alloys thereof, directly covered with at least one coating of copper, tin, indium or one of the alloys thereof.

Abstract: A horizontally mounted connector deckplate for swimming pools to connect swim timing devices and other devices with electrical contacts with potential difference mounted on slopes integrated into the body of the deckplate. These integrated slopes cause corrosive pool water that is splashed on the deckplate, which creates water bridges between electrical contacts, to flow off through gravity, overcoming the water surface tension. Therefore electrolytic currents through the water bridges are greatly reduced, reducing corrosion of the electrical contacts of the deckplate. In addition corrosion resistant materials such as titanium are used for the electrical contacts.

Abstract: A charging connector (10) has terminal fittings (20) including female-side main portions (21) connectable to a vehicle-side terminal (60) and having a wire (W) connected to the rear end of the main portion (21). Terminal accommodating portions (15) are formed internally with cavities (17) for accommodating the terminal fittings (20). Seals (30) are sandwiched between facing inner walls of the cavities (17) and the main portions (21). Wire accommodating portions (11, 12) are behind the terminal accommodating portions (15) for accommodating the wires (W) in a state where reaction forces push the terminal fittings (20) forward. Each terminal fitting (20) is biased constantly forward by the reaction force of the wire W against a frictional force with the seal ring (30), thereby being arranged at a frontmost position where the front end of the main portion (21) and a front wall (17A) of the cavity (17) are in contact.

Abstract: An upper side of the distal end of an electric wire is covered with cover members made of water-absorbing resin layers in which impermeable layers are formed on the inner surface sides abutting on a conductor before crimping previously so as to include at least a portion having the possibility of exposing the conductor of the electric wire to the outside when a conductor crimping part and a sheath crimping part of a crimping terminal are respectively crimped to the conductor and the portion having an insulating sheath of the distal end of the electric wire, and conductor crimping pieces and sheath crimping pieces are crimped onto the cover members and thereby, the cover members are held by the conductor crimping pieces and the sheath crimping pieces with an exposed portion of the conductor covered.

Abstract: A connector structure includes a coaxial cable coupler, which receives therein at least one positioning block. The positioning block has a surface against which a water seal pad is positioned. A conductive pin is arranged to extend through the positioning block and the water seal pad. As such, the arrangement of the water seal pad effectively prevents invasion of water and simplifies the assembling process to thereby reduce the assembling costs.

Abstract: A cover and a system of covers/boots for placement in sealed relation over a connector or pair of connectors that is or are adapted to terminate a cable or splice together a pair of cables, preferably cables that carry signals received by a receiving apparatus on a cell tower. The covers include a cable end that sealingly receives a cable therein, an elongated body that provides secure cover to a cable connector, and an interface cover that cooperates with the elongated body to seal the connector interface when disconnected.

Abstract: A technique enables protection of electrical conductors in a submerged environment, such as a wellbore environment. A connector system is employed to connect a submersible component with an electrical cable. The connector employs redundant seal systems designed to maintain functionality during the life of the system when utilized in high temperature environments. For example, the high temperature, redundant seal systems enable continued operation of the submersible component in a submerged environment of at least 600 degrees Fahrenheit.

Abstract: A sealant-filled enclosure assembly for environmentally protecting a connection includes a housing, a mass of sealant and a sealant valve mechanism. The housing includes a main cavity to receive the connection. The mass of sealant is disposed in the main cavity. The sealant valve mechanism includes an overflow chamber and a gate member between the main cavity and the overflow chamber. The gate member is selectively positionable in each of a closed position, wherein the gate member substantially prevents displacement of the sealant from the main cavity to the overflow chamber, and an open position, wherein the gate member permits displacement of the sealant from the main cavity to the overflow chamber.

Abstract: A charging connector (10) has terminal fittings (20) including female-side main portions (21) connectable to a vehicle-side terminal (60) and having a wire (W) connected to the rear end of the main portion (21). Terminal accommodating portions (15) are formed internally with cavities (17) for accommodating the terminal fittings (20). Seals (30) are sandwiched between facing inner walls of the cavities (17) and the main portions (21). Wire accommodating portions (11, 12) are behind the terminal accommodating portions (15) for accommodating the wires (W) in a state where reaction forces push the terminal fittings (20) forward. Each terminal fitting (20) is biased constantly forward by the reaction force of the wire W against a frictional force with the seal ring (30), thereby being arranged at a frontmost position where the front end of the main portion (21) and a front wall (17A) of the cavity (17) are in contact.

Abstract: A refrigerator includes a fixed connector fixed to a wall surface of a cooling space; a movable connector detachably coupled to the fixed connector; and a connector protection portion disposed above a coupling surface between the fixed connector and the movable connector, and configured to prevent moisture from being introduced into the coupling surface of the connector from the wall surface of the cooling space. Firstly, the connector protection portion configured to prevent moisture from being introduced into the coupling surface between the fixed connector and the movable connector from the wall surface of the cooling space is disposed above the coupling surface, thereby preventing damage of electric equipment or fire occurrence. Secondly, the coupling surface of the fixed connector is provided towards a front surface or is downwardly inclined towards a front side.

Abstract: An electrical junction box comprising: a casing containing a circuit assembly therein; a connector housing disposed on a bottom of the casing and adapted to be coupled to a mating connector; a plurality of terminal metals connected to the circuit assembly and passing through a wall of the connector housing to be drawn into the connector housing; and a waterproof cover formed individually from the casing and disposed in the casing. The waterproof cover includes a first waterproof wall for covering a space above adjacent terminal metals, a second waterproof front wall and second waterproof side walls for partitioning a space between the adjacent terminal metals and a side wall of the casing.

Abstract: A connector for an electrical stimulation system includes an assembly of individual contact modules arranged along a common axis. Each contact module includes a body having a seat and at least two insertion apertures. An aperture contact is associated with each of the insertion apertures and is configured and arranged to electrically couple to a terminal of an elongated member when the elongated member is inserted into the associated insertion aperture. A seal plate is disposed in each seat of an associated one of the contact modules such that the seal plate is sandwiched between adjacent contact modules. Each seal plate is configured and arranged to electrically isolate the aperture contacts of the associated contact module from the aperture contacts of the other contact modules.

Abstract: An adjustable at least four-way electrical connector for signal, power, voice and/or data communication, comprising at least four adjustable electrical connections utilizing a ball and socket type physical connection device and including a weatherproofing gasket; also an adjustable fiber optic connection device utilizing ball and socket type construction wherein an optical fiber can be split into a plurality of optical fibers via a connection device providing for rotation and pivoting.

Abstract: An audio jack comprises a set of contacts including a stationary contact (25) and a movable contact (23), and an anti-dust dome member (5). The anti-dust dome member (5) includes a conductive sheet (51) extending from a horizontal plate portion (250) of the stationary contact (25) to a lateral beam (235) of the movable contact (23), and a middle conductive dome sheet (52) below the conductive sheet (51). The conductive dome sheet (52) is constantly actuated to establish an electrical connection between the stationary contact (25) and the movable contact (23). Thus, even if dust is deposited on the anti-dust dome member (5) will have no effect on the electrical connection as established.

Abstract: An electric wire including a conductor; and a coating material outside of the conductor, wherein a water-stopping agent having a flowability is located between the conductor and the coating material on a connection terminal side of the electric wire.

Abstract: The present invention improves reliability of an in-vehicle electronic device against corrosive gases. A trapping agent that has trap performances (adsorptive performance, suction performance, absorption performance, chemical reactivity, etc.) that are higher than that of water vapor with respect to corrosive gases other than water vapor is held within a connector having a terminal that is insert-molded in a case housing an electronic circuit. Here, the trapping agent may be held in a counterpart connector of the connector integrally formed in the case.

Abstract: The invention relates to a flat cable connector for sealed applications. An object of the invention is to show a new and considerably improved kind of a flat cable connector for sealed applications, compared to the current state of the art.

Abstract: An underwater connector (10) comprising a magnetic coupler for passing communications signals and/or power from one part (12) to another part (13) using magnetic coupling and without requiring direct electrically conductive contact between the parts (12, 13).

Abstract: The present invention improves reliability of an in-vehicle electronic device against corrosive gases. A trapping agent that has trap performances (adsorptive performance, suction performance, absorption performance, chemical reactivity, etc.) that are higher than that of water vapor with respect to corrosive gases other than water vapor is held within a connector having a terminal that is insert-molded in a case housing an electronic circuit. Here, the trapping agent may be held in a counterpart connector of the connector integrally formed in the case.

Abstract: A plug-in termination of a single-phase conductor in a power cable termination assembly for submerged use. A first barrier separates an outer pressure-compensated housing from the sea. A second barrier separates an inner pressure-compensated housing from the outer pressure-compensated housing. The single-phase conductor runs through the first and second barriers and is secured in the inner pressure-compensated housing by its end being terminated within an insulator body insertable into the inner housing. The unsheathed conductor end is electrically connected within the insulator body to a conducting pin which is fixedly embedded by molding into the insulator body.

Abstract: A medical apparatus includes a power unit serving as a first connector portion, an insertion-section-side body serving as a second connector portion having an electrical contact portion which is to be connected to the power unit, a first wiper serving as a removing member which removes moisture on the electrical contact portion in a predetermined direction when the power unit and the insertion-section-side body are connected, and a second wiper serving as a prevention member which prevents entrance of moisture from a direction which is different from the direction of moisture removal by the first wiper. Thereby, even if moisture adheres to the electrical contact portion, the moisture is removed in the process of connecting the connection section, there is no concern that the moisture that is removed adheres to the electrical contact portion again, and the reliability can be improved.

Abstract: An all-in-one connecting base having a waterproof device includes a connecting base body, a waterproof shell and a waterproof device. At least one connecting port is set on the connecting base body. The waterproof shell is mounted outside of the connecting base body and covers the connecting ports. The waterproof device is set movably on the waterproof shell. Thereby, the all-in-one connecting base having a waterproof device is assembled. It is convenient to assemble or dismantle the waterproof shell to shorten maintenance and assembly times. Moreover, it is unnecessary to design a new waterproof loop for the different types of the connecting ports, which reduces purchasing costs and avoid costly purchasing of accessories, in order to reduce overall costs.

Abstract: A terminal table unit includes: a terminal table (10) having a metal terminal (12) at its lower surface for connecting a lead wire (60); an insulation plate (20) adhered to the lower surface of the terminal table and having a hole (20-1) at a portion corresponding to the portion containing a metal terminal and its surrounding region; and a metal plate (30) having an upper surface adhered to the lower surface of the insulation plate and having a through hole (30-2) reaching from the upper surface to the lower surface. Through the through hole (30-2), the lead wire is brought out to the lower surface of the metal plate. The terminal unit has a contact surface between the insulation plate containing the hole (20-1) and the terminal table, a contact surface between the insulation plate and the metal plate, and the through hole (30-2) which are filled with adhesive and unified by a bolt (40).

Abstract: A system for connecting electronic components to one another in a sealed or sealable manner is provided. This system includes: a first electronic component, wherein the first electronic component further includes a first connector mounted therein, and wherein the first connector further includes a plurality of contact surfaces; a second electronic component for communicating with the first electronic component, wherein the second electronic component further includes a second connector mounted therein, and wherein the second connector further includes a plurality of contact surfaces corresponding to the plurality of contact surfaces on the first connector; means for sealing a portion of the first connector within the first electronic component; and means for sealing a portion of the second connector within the second electronic component.

Abstract: A socket body (20) including a plug socket terminal accommodation chamber (23) and a ground terminal accommodation chamber (24) below the plug socket terminal accommodation chamber (23). The ground terminal accommodation chamber (24) has an aperture (30) formed along a direction substantially orthogonal to an insertion direction of a mating plug and a vertical direction and the ground terminal (31) is accommodated through the aperture (30). A downwardly open draining hole (29) is formed on a periphery of the plug socket terminal accommodation chamber (23). A rib (36) is formed on a peripheral surface so that a distance between the rib (36) and the aperture (30) is shorter than a distance between the rib (36) and the draining hole (29).

Abstract: A liquid tight connector for non-metallic conduit is formed of a one piece body having a through bore. A sleeve extends inwardly from one end of the body and a threaded nipple extends inwardly from the other. Projecting transversely from the inner end of the nipple is a flange. A ferrule skirt extends from the flange toward the sleeve end of the body to define an annular channel concentric with the sleeve. An internal buttress thread is formed on the inner wall of the skirt. An end of a length of conduit is slipped over the end of the sleeve and into the mouth of the channel. The connector is rotated relative to the conduit, with the thread engaging an outer wall of the conduit to tightly draw the channel over the conduit. An outward flare is provided at the flange end of the sleeve to compress and seal the conduit.

Abstract: A connector includes a housing having a mating face configured to join a mating connector. A contact held in the housing proximate the mating face. A gel material is provided on the housing between the contact and the mating face. The gel material includes a self-sealing slit formed in the gel material. The slit is configured to accept the mating connector. When the mating connector is removed, the slit closes to seal the contact.

Abstract: An electric outlet dust protective structure used in an electric outlet to close the front opening of the housing of the electric outlet when the electric outlet is not inserted with an electric plug is disclosed to include a top dust cover, which has a top finger strip and an actuating block with two sloping side edges, left and right side dust covers each having a respective sloping top guide face maintained in contact with the sloping side edges of the actuating block and a respective guide groove coupled to a respective guide rod at the top dust cover for easy downward movement with the top dust cover to open the front opening of the housing, and two spring members that support the left and right side dust covers and the top dust cover in the close position to close the front opening of the housing.

Abstract: A ventilation system is described for electrical wiring arrangements of electrical circuits comprising a plurality of electrical connection terminals arranged within an insulating element; the ventilation system comprising a plurality of electrical ventilation cables connected to the respective electrical terminals of the electrical circuit; a plurality of connection chambers each produced in the body of the insulating element in such a manner as to accommodate therein the connection between the electrical ventilation cable and the corresponding terminal while maintaining the connection insulated from the outside; and at least one communication duct between the connection chambers produced in the body of the insulating element and designed so as to permit the passage of air between the connection chambers and through the electrical ventilation cables.

Abstract: A fuel pump is provided that is submersible within a fuel, for example, within a fuel tank of an automotive vehicle and is particularly suited for use with high alcohol content fuels that tend to contain ionic species. The fuel pump comprises an electric motor that includes a commutator and a negative brush electrode that is connected to a negative terminal of an external power supply. The electric motor is at least partially disposed within a metal shell that is in contact with the fuel. The metal shell is also connected to the negative terminal of the external power supply. During operation, a negative electrical potential is applied to the metal shell to preferentially react with ions within the fuel. In this manner, the metal shell serves as a anode to reduce the concentration of ionic species in the fuel, thereby decreasing reactions with the brush electrode and extending the useful life of the fuel pump.

Abstract: A splice connector assembly for mechanically and electrically connecting a conductor pair including a first conductor member and a second conductor member, and for use with an electrical probe, includes a connector body adapted to receive the first and second conductor members. The connector body includes first and second body members. The first body member has first and second opposed sides. The second body member is adapted to engage the first body member. A terminal member is provided. The terminal member includes a first terminal disposed on the first side of the first body member and adapted to electrically engage the first conductor member, and a second terminal disposed on the second side of the first body member and electrically connected to the first terminal. The second terminal is adapted to electrically engage the second conductor member. An access hole is formed in the connector body and is adapted to receive the probe such that the probe can selectively contact the terminal member.

Abstract: An electrical connector for use with a conductor includes a housing defining a port. The port includes an entrance opening, an exit opening, and a conductor passage extending between and communicating with the entrance and exit openings. The conductor passage is adapted to receive the conductor therethrough. Sealant is disposed in the conductor passage. The sealant is adapted for insertion of the conductor therethrough such that the sealant provides a seal about the inserted conductor. A penetrable closure wall extends across the conductor passage.

Abstract: An apparatus is disclosed for connecting at least two conductors. One embodiment has a body and a cap engaging the body. The body has an open top to an interior region. The body has at lest two apertures extending through a body side wall and into an interior region of the body. The cap has a cavity downwardly extending from a top surface of the cap toward a bottom surface of the cap. The cavity terminates at a floor between the top surface and the bottom surface of the cap, and the floor has a puncturable thickness to provide access to the interior region of the body.

Abstract: In order, in a simple and reliable manner, to effect a seal in the region of the lead feedthroughs in a housing for an electrical device, in particular a measuring transducer, through the wall (2of which housing at least one electrical lead (3) is introduced into the housing (1) and is sealed against the wall (2) by a sealant, tar (6) is used as the sealant.

Abstract: An electrical device includes two housing parts that may be joined to form one closed housing, the housing parts in the joined state enclosing a housing interior space, as well as an electrical/electronic circuit element arranged in the housing inner space, and a sealing material for protecting the circuit element.

Abstract: A waterproof structure is achieved by inserting a covered electric wire 40 obtained by covering an outer periphery of a conductor portion 41 with a cover portion 42 made of a resin into an electric wire inserting hole 28 of a connector main body 21 inserted to a terminal receiving chamber 24 in a state of being connected to a terminal received in a terminal receiving chamber 24 of the connector main body 21 and welding the cover portion 42 and the electric wire inserting hole 28 in accordance with a ultrasonic oscillation and a pressurization from an outer side. The connector main body 21 has a weld depth setting portion 47 for setting a weld depth, whereby an excessive welding is prevented.

Abstract: The present invention relates to an electrical device, which includes two housing parts that can be joined to form one closed housing, the housing parts in the joined state enclosing a housing interior space, as well as an electrical/electronic circuit element arranged in the housing inner space, and a sealing material for protecting the circuit element.

Abstract: A self-adjusting end cap for capping an object having an opening. The end cap includes a base that has an inner and an outer surface, at least one post connected to the base inner surface, and at least one rib extending outwardly from the post. The rib is adapted to fit in a channel in an opening of an object to be capped. When the end cap and object are aligned for connection, the rib extends beyond an inner wall of the channel. A portion of the rib is sheared off by the inner wall of the channel upon insertion of the post and rib in the channel, thereby positioning the end cap within the object. The posts in combination with the ribs create a precise and tight friction fit between the end cap and the object. Preferably, the end cap has two posts, each with a rib extending outwardly therefrom, and the object has two channels, each having an inner wall. The outer edges of the ribs are separated by a first distance, and the channels are separated by a second distance.

Abstract: The facilitated-detachment electrical connection device for kitchen appliances comprises an electrical cable exhibiting a connection plug to the electric network at one end, and a magnetised member electrically associable—through a magnetic force—to an outlet connected to the kitchen appliance at the opposed end, characterised in that it comprises insulation means present on said kitchen appliance and/or on said magnetised member for preventing the contact of condensate or the like with the electrical contacts of such magnetised member and of said outlet.

Abstract: Connectors for fuel pumps in motor vehicles have fuel flowing around them. Apart from the connections for the electrical supply lines, such connectors make contact with further electrical components. Corrosive components in fuels attack the connecting points of the connector to the electrical components, so that this can lead to failure of the fuel pump. The new connector is intended to have connecting points which are no longer attacked by the fuel. By extrusion coating parts of the connector with plastic, the connecting points are effectively protected against attack by fuel. Recesses in the plastic extrusion coating allow fuel to still flow around parts of the connector for cooling, while the regions of the connector which are at risk are separated from the fuel.

Abstract: The facilitated-detachment electrical connection device for kitchen appliances comprises an electrical cable exhibiting a connection plug to the electric network at one end, and a magnetized member electrically associable—through a magnetic force—to an outlet connected to the kitchen appliance at the opposed end, characterized in that it comprises insulation means present on said kitchen appliance and/or on said magnetized member for preventing the contact of condensate or the like with the electrical contacts of such magnetized member and of said outlet.

Abstract: A terminal connector includes a knob at its outer end. A knob cover snaps into the knob to enable rotation of the knob. The knob cover has resiliently urged lock tabs which snap over lock steps on the knob and into grooves beyond the lock steps. The sides of the lock tabs engage sides of the grooves to transmit torque to the knob. The knob covers are color coded so that a selected color can be installed on a selected knob to indicate its function. An insertion prevention lid is integrally molded over a plug insertion opening of the knob cover to prevent insertion of a connector plug therein. A frangible perimeter of the insertion prevention lid permits its removal to enable insertion of a connector plug.

Abstract: This invention is a mobile phone connector, a connector with anti-dust and water-resistant functions. The connector comprises: a connector main unit having a welded side and a matching side, and an insulating casing on the outside of the connector main unit, having correspondingly a welded side and a matching side, characterized in that: on the matching side of the insulating casing is a cover unit that is fixed by a shaft. Between the cover unit and the matching side of the insulating casing are an anti-leak washer and a fastening device, so designed that when the cover unit is fixed by the shaft to the insulating casing, the anti-leak washer is pressed tight against the matching side of the insulating casing, so that side is sealed, and meanwhile, the obstruction of the cover unit provides anti-dust and water-resistant effects to the matching side of the insulating casing.

Abstract: In accordance with the invention, rather than embedding them collectively in potting compound, wire to pin connections on a connector block are separately coated with protective gel for resisting corrosion. The coating can be effected with high volume gel dispensing equipment in shop environments and by manual gel dispensing in the field, providing significant advantages rework and repair in the field.

Abstract: A ballast assembly facilitates alternative wiring configurations via the use of one or more dual-port connectors with corresponding insulating covers. The dual-port connectors provide a choice of wiring options, and the insulating cover provides the protection of the connector from the ingress of materials during the manufacturing process. In a preferred embodiment, the insulating cover is configured to reduce the potential of damage, to people or equipment, during the assembly of a lighting fixture containing this ballast assembly, and is also configured to provide the electrical isolation and protection required or desired for safety concerns. In a preferred embodiment, the insulating connector forms access regions about each port of the dual connector that are physically and electrically isolated from one another, and physically and electrically isolated from the access holes in the enclosure material, which is typically sheet metal.

Abstract: A high density seal connector for use in an automotive vehicle. The connector includes a strain relief member when the strain relief member has an outer frame which in part defines the connector. The strain relief member further includes a protective inner cover which is attached to an inside surface of the frame. The inner cover also includes an inside surface and an outside surface which has a plurality of orifices therethrough. The connector also includes a resilient seal member which is molded directly to the inside surface of the inner cover. The seal member includes a plurality of seal plugs which fill a predetermined number of the orifices of the inner cover.

Abstract: An environmentally protected, substantially sealed connector for attachment to a cable having a plurality of electrical conductors which are terminated at an end thereof with a contact, including a housing having a floor with a plurality of apertures therethrough arranged in a predetermined pattern and a backshell extending from the floor of the housing and encompassing the extended axes of the apertures, the backshell having at least one bead portion protruding from an outer surface of the outer backshell and extending at least partially around the backshell. A plurality of electrical contacts are disposed within the housing, each of the electrical contacts having a portion extending through one of the apertures and adapted to mate with one of the contact-terminated electrical conductors. Each of the electrical contacts has a locking member for retaining the associated contact in a fixed relationship to the floor.

Abstract: An electrical connector housing includes a lower shell, a connector block and an upper shell. An upper panel of the lower shell includes a first fixing mount and a draw hole, and the upper shell includes an outer side face having a second fixing mount. The upper panel of the lower shell has an inner face including a rib which is placed near the draw hole and extends towards the side panel of the lower shell while surrounding the draw hole. Likewise, the upper face of the connector block includes a pair of partition walls at a position corresponding to that of the rib, so that, when the connector block is inserted into the lower shell, the partition walls are closely superposed on the rib, and a draining space is formed away from a space for fixture ports for electrical parts, and leads to the drain hole. Such a configuration prevents the electrical connector housing from becoming too large and too costly. Such a housing structure also provides a better waterproofing quality.