JP2015133185A - Wiring device and housing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wiring device and a housing capable of increasing the resistance against the heat generated on a terminal and achieving a reduced thickness.SOLUTION: The wiring device includes: a wiring circuit; and a housing storing the wiring circuit. The wiring circuit has an electric circuit, and terminals for connecting the electric circuit to an external circuit. The housing has a first part for storing the terminals, and a second part for storing the electric circuit. The first part has a heat resistance higher than the second part, and the second part has a mechanical strength higher than the first part.

Description

  The present invention relates to a wiring device and a housing that houses a wiring circuit of the wiring device.

  Conventionally, various wiring devices (for example, an outlet, an outlet with a switch, a table tap, a multi-tap, and a switch) are provided.

  Patent document 1 discloses an outlet with a switch. The outlet with a switch disclosed in Patent Document 1 includes a body composed of a body and a cover. The body accommodates a voltage electrode member. The body is formed of a thermoplastic resin (polycarbonate resin).

  Patent Document 2 discloses a multi-tap. The multi-tap disclosed in Patent Document 2 has a blade receiving block container. The body is composed of a body and a cover. The body houses a contact portion (a fixed contact and a movable contact), a conductive plate, and a blade receiving member. The body is formed of a thermosetting resin (for example, urea resin) having excellent heat resistance and tracking resistance.

Japanese Patent Laying-Open No. 2005-216567 (see paragraphs [0020] to [0022] and FIG. 2) JP 2012-174503 (see paragraphs [0023] to [0026] and FIG. 1)

  By the way, the terminal of a wiring instrument (for example, the member for voltage electrodes of patent document 1, and the blade receiving member of patent document 2) may become high temperature in use. Therefore, the body of the wiring device (for example, the body of Patent Document 1 or the body of Patent Document 2) is required to have high resistance to heat generation of the terminal, that is, heat resistance. Further, it is desired that the wiring device is formed to be thin. Therefore, not only heat resistance but also mechanical strength is required for the body of the wiring device (for example, the body of Patent Document 1 and the body of Patent Document 2).

  Here, the body of Patent Document 1 is formed of a thermoplastic resin, and the body of Patent Document 2 is formed of a thermosetting resin. In general, a thermosetting resin has higher heat resistance than a thermoplastic resin, but has lower mechanical strength than a thermoplastic resin.

  Therefore, in patent document 1, since the mechanical strength of a body can be made comparatively high, the thickness of a wiring apparatus can be made thin. However, Patent Document 1 has a problem that the heat resistance of the body is relatively low.

  On the other hand, in patent document 2, the heat resistance of a body can be made comparatively high. However, since the mechanical strength of the body is relatively low, there is another problem that it is difficult to reduce the thickness of the wiring device.

  The problem to be solved by the present invention is to provide a wiring device and a housing that can increase resistance to heat generation of a terminal and can be thin.

  The wiring device of the 1st form which concerns on this invention is provided with a wiring circuit and the housing which accommodates the said wiring circuit. The wiring circuit includes an electric circuit and a terminal for connecting an external circuit to the electric circuit. The housing includes a first part that accommodates the terminal and a second part that accommodates the electric circuit. The first portion is made of a first material. The second part is formed of a second material. The first material has higher heat resistance than the second material. The second material has higher mechanical strength than the first material.

  In the wiring device according to the second aspect of the present invention, in the first aspect, the first material is a ceramic material or a thermosetting resin.

  In the wiring device according to a third aspect of the present invention, in the first aspect, the first material is urea resin.

  In the wiring appliance of the 4th form which concerns on this invention, in any one of the 1st-3rd form, the said 2nd site | part is formed with a thermoplastic resin.

  In the wiring device according to a fifth aspect of the present invention, in any one of the first to fourth aspects, the housing is opened at a first surface facing a predetermined direction and the wiring circuit is disposed inside. And a cover fixed to the body so as to cover the first surface of the body. The body includes the first part and the second part.

  In the wiring device of the 6th form which concerns on this invention, the said cover has a recessed part in a 5th form. The second part has a convex part that fits into the concave part. The cover is fixed to the body by fitting the convex portion into the concave portion.

  In the wiring device according to a seventh aspect of the present invention, in the sixth aspect, the second material is more elastic than the first material.

  In the wiring device according to an eighth aspect of the present invention, in any one of the fifth to seventh aspects, the second portion has an attachment hole for fixing the housing at a predetermined position. The housing further includes a plate attached to a surface of the cover opposite to the body so as to cover the attachment hole.

  In the wiring device of the ninth form according to the present invention, in any one of the fifth to eighth forms, the terminal is an input terminal for receiving power from a power source, and for supplying power to a load. An output terminal. The electric circuit has a path for electrically connecting the input terminal and the output terminal. The output terminal is disposed on the first surface side. The input terminal is disposed on the second surface side facing the direction opposite to the predetermined direction. The first part has a first opening for exposing the input terminal. The cover has a second opening that exposes the output terminal.

  In the wiring instrument of the 10th form which concerns on this invention, the said input terminal is comprised so that an external electric wire may be received in a 9th form. The output terminal is configured to receive a plug blade. The first opening is configured to pass the external electric wire. The second opening is configured to pass the blade of the plug.

  According to an eleventh aspect of the wiring device of the present invention, in the tenth aspect, the electric circuit includes a switch. The switch includes a contact mechanism connected between the input terminal and the output terminal in the path, and a handle for operating the contact mechanism. The cover has a third opening for exposing the handle.

  In a wiring device of a twelfth aspect according to the present invention, in the eleventh aspect, the first part is a box shape in which a third surface facing the predetermined direction is opened. The second part has a plate shape having a window in which the first part is disposed inside. The second part has a recess in which the electric circuit is arranged on a fourth surface facing the predetermined direction.

  In a wiring device of a thirteenth aspect according to the present invention, in the twelfth aspect, the first part and the second part are separate. The first part is mechanically coupled to the second part.

  In the fourteenth aspect of the wiring device according to the present invention, in the thirteenth aspect, the first portion has a fifth surface facing the opposite direction. The fifth surface has a central portion and an edge portion located on the third surface side from the central portion. The second portion has a support member that protrudes into the window in a plane parallel to the fifth surface and supports the first portion at the edge.

  In the wiring device according to a fifteenth aspect of the present invention, in the twelfth aspect, the first part and the second part are integral.

  The housing of the 16th form which concerns on this invention is a housing for accommodating the wiring circuit of a wiring fixture. The wiring circuit includes an electric circuit and a terminal for connecting an external electric wire to the electric circuit. The housing includes a first part that accommodates the terminal and a second part that accommodates the electric circuit. The first part has higher heat resistance than the second part. The second part has higher mechanical strength than the first part.

  According to the wiring device and the housing according to the present invention, it is possible to increase the resistance to heat generation of the terminal and to reduce the thickness.

It is a disassembled perspective view of the wiring device of one Embodiment which concerns on this invention. It is a circuit diagram of the said wiring instrument. It is a disassembled perspective view of the wiring circuit of the said wiring instrument. It is sectional drawing of the said wiring instrument. It is a perspective view which shows the cross section of the said wiring instrument. It is a disassembled perspective view of the body of the said wiring instrument. It is a disassembled perspective view of the body of the wiring device. (A)-(f) is a figure which shows the 1st subbody of the said wiring instrument. (A)-(f) is a figure which shows the 2nd subbody of the said wiring instrument. (A)-(f) is a figure which shows the said body of the said wiring instrument. It is a perspective view which shows the cover and plate of the said wiring device. (A)-(e) is a figure which shows the said wiring instrument.

[1. Constitution]
As shown in FIG. 1, a wiring device according to an embodiment of the present invention includes a wiring circuit 1 and a housing 2.

[1.1 Wiring circuit]
For example, the wiring circuit 1 has a circuit configuration as shown in FIG. The wiring circuit 1 includes three wire connection portions (first to third wire connection portions) 10 (10A, 10B, 10C) and two plug connection portions (first and second plug connection portions) 11 (11A, 11B). ) And an electric circuit 12 that electrically connects the three electric wire connection portions 10 and the two plug connection portions 11.

  Each of the first to third electric wire connecting portions 10A, 10B, and 10C includes two terminals 100 (101, 102, and 103) for connecting an external circuit (for example, an electric circuit of a power source) to the electric circuit 12. Each terminal 101, 102, 103 is configured to receive an external electric wire (not shown). In the present embodiment, the terminal 101 of the first electric wire connecting portion 10A and the terminal 102 of the second electric wire connecting portion 10B are used as terminals (power supply terminals) for receiving voltage, and the terminal 103 of the third electric wire connecting portion 10C is grounded. Used as a terminal. In addition, the number of the terminals 100 of each electric wire connection part 10 is not limited to two.

  In the first to third electric wire connection portions 10A, 10B, and 10C, one of the two terminals 100 (101, 102, 103) is used for receiving an external electric wire from a power source (external power source such as a commercial AC power source). The other of the two terminals 100 (101, 102, 103) is used to receive an external electric wire from another wiring device. That is, when one of the terminals 101, 102, 103 of the first to third electric wire connecting portions 10A, 10B, 10C is used as an input terminal for receiving power from a power source (for example, a commercial AC power source), The other terminals 101, 102, 103 of the three-wire connecting portions 10A, 10B, 10C are used as feed terminals for supplying power to another wiring device.

  In the following, for simplicity of explanation, one of the terminals 101, 102, 103 of the first to third electric wire connecting portions 10A, 10B, 10C is used as an input terminal (first input terminal, second input terminal, third The other terminals 101, 102, 103 of the first to third wire connecting portions 10A, 10B, 10C are referred to as feed terminals (first feed terminal, second feed terminal, third feed terminal).

  In the following description, the suffix “A” is added to the reference numerals of the input terminals 101, 102, 103 and the suffix “B” is added to the reference numerals of the feed terminals 101, 102, 103 as necessary. .

  Each of the first and second plug connecting portions 11A, 11B has three terminals 100 (111, 112, 113) for connecting an external circuit (for example, an electric circuit of a load) to the electric circuit 12. The three terminals 111, 112, and 113 are output terminals (first output terminal, second output terminal, and third output terminal) for supplying power to the load.

  Each of the terminals (output terminals) 111, 112, 113 is configured to receive a plug blade (not shown). That is, each of the terminals (output terminals) 111, 112, and 113 is a blade receiver that receives a blade (not shown) of the plug. Note that the blade of the plug may be, for example, a flat blade shape or a pin shape.

  In the present embodiment, the two terminals 111 and 112 are used as terminals (power supply terminals) for applying a voltage, and the terminal 113 is used as a ground terminal. Note that the number of the terminals 100 of the plug connection portion 11 is not limited to three.

  In the following description, the suffix “A” is added to the reference numerals of the terminals 111, 112, and 113 of the first plug connecting portion 11A as necessary, and the terminals 111, 112, and 113 of the second plug connecting portion 11B are added. The suffix “B” is added to the reference sign.

  The electric circuit 12 has three paths (electric paths) 131, 132, and 133. The electrical path (first electrical path) 131 electrically connects the first input terminal 101A to the first output terminals 111A and 111B and the first feed terminal 101B. The electrical path (second electrical path) 132 electrically connects the second input terminal 102A to the second output terminals 112A and 112B and the second feed terminal 102B. The electrical path (third electrical path) 133 electrically connects the third input terminal 103A to the third output terminals 113A and 113B and the third feed terminal 103B.

  The electric circuit 12 has two switches (first and second switches) 14 (14A, 14B).

  Each of the first and second switches 14A and 14B includes a contact mechanism 140 (140A and 140B) and a handle 141 (141A and 141B) for operating the contact mechanism 140 (140A and 140B).

  The contact mechanism 140A is connected between the first input terminal 101A and the first output terminal 111A in the first electrical path 131. Therefore, the first switch 14A opens and closes the electrical connection between the first input terminal 101A and the first output terminal 111A.

  The contact mechanism 140B is connected between the first input terminal 101A and the first output terminal 111B in the first electric path 131. Accordingly, the second switch 14B opens and closes the electrical connection between the first input terminal 101A and the first output terminal 111B.

  In addition, the number of the electric wire connection parts 10 is not specifically limited. The number of plug connecting portions 11 may be one or three or more. The number of switches 14 may be one or three or more.

  For example, as shown in FIG. 3, the wiring circuit 1 includes two plug connection conductors (first and second plug connection conductors) 30 (30A, 30B), a terminal connection conductor 31, and two movable plates (first And a second movable plate) 32 (32A, 32B), a converter (first and second converter) 33 (33A, 33B), and a coil spring (first and second coil spring) 34 (34A, 34B). And two handles 141 (141A, 141B), a connecting conductor 35, a ground conductor 36, two locking springs (first locking spring) 371, and two locking springs (second locking spring). 372, two lock springs (third lock spring) 373, and three release buttons (first, second, and third release buttons) 381-383. The wiring circuit 1 includes a third locking spring 373, but the third locking spring 373 is not shown in FIG.

  The first plug connection conductor 30A includes a first output terminal 111A, a support plate 301 (301A), and a connecting piece 302 (302A) that connects the first output terminal 111A and the support plate 301A. The support plate 301A supports the first movable plate 32A in a swingable manner. The second plug connection conductor 30B includes a first output terminal 111B, a support plate 301 (301B), and a connecting piece 302 (302B) that connects the first output terminal 111A and the support plate 301A. The support plate 301B supports the second movable plate 32B in a swingable manner. Each of the first and second plug connection conductors 30A and 30B is formed of, for example, a metal plate.

  The terminal connection conductor 31 includes two terminal plates 311, two fixing plates 312 (312 </ b> A, 312 </ b> B), a connecting piece 313 that connects the two fixing plates 312 </ b> A, 312 </ b> B, two terminal plates 311, and a connecting piece 313. A connecting piece 314 for connecting the two. The terminal connection conductor 31 is formed from a metal plate, for example.

  One of the two terminal plates 311 constitutes the first input terminal 101A together with the corresponding first locking spring 371, and the other of the two terminal plates 311 configures the first feeding terminal 101B together with the corresponding first locking spring 371. Configure.

  Each of the first input terminal 101 </ b> A and the first feed terminal 101 </ b> B holds an external electric wire with the terminal plate 311 and the first locking spring 371. Each of the terminals 101A and 101B is, for example, a screwless terminal (fast connection terminal). Such a screwless terminal is well known in the art and will not be described.

  The fixed plates 312A and 312B have fixed contacts of the contact mechanisms 140A and 140B. The fixed contact may be a part of the fixed plate 312 or a member different from the fixed plate 312.

  The movable plates 32A and 32B have movable contacts of the contact mechanisms 140A and 140B, respectively. The movable contact may be a part of the movable plate 32, or may be a member different from the movable plate 32. The movable plate 32 is disposed on the support plate 301 so as to be swingable between an on position and an off position. The ON position is a position where the movable contact of the movable plate 32 comes into contact with the fixed contact of the fixed plate 312. The off position is a position where the movable contact of the movable plate 32 does not contact the fixed contact of the fixed plate 312.

  The first and second converters 33A and 33B are mechanically connected to the handles 141A and 141B by first and second coil springs 34A and 34B, respectively. The handles 141A and 141B are swingably attached to the housing 2, respectively. The first and second converters 33A and 33B are coiled on the movable plates 32A and 32B so that the movable plates 32A and 32B move between the on position and the off position, respectively, according to the operation of the handles 141A and 141B. It is pressed by the springs 34A and 34B.

  Thus, the contact mechanism 140A is configured by the support plate 301A, the fixed plate 312A, the movable plate 32A, the converter 33A, and the coil spring 34A. Further, a contact mechanism 140B is configured by the support plate 301B, the fixed plate 312B, the movable plate 32B, the converter 33B, and the coil spring 34B.

  The handles 141A and 141B and the first and second converters 33A and 33B are, for example, insulators. Specifically, the handles 141A and 141B and the first and second converters 33A and 33B are formed of an insulating resin material. The resin material is preferably a resin having high heat resistance, more preferably a thermosetting resin (for example, a urea resin, a melamine resin, a phenol resin, or a melamine / phenol resin), and particularly preferably a urea resin.

  Thus, the two plug connection conductors 30A and 30B, the terminal connection conductor 31, the two movable plates 32A and 32B, the two converters 33A and 33B, the two coil springs 34A and 34B, and the two handles 141A, 141B and the two first locking springs 371, the first input terminal 101A, the first feed terminal 101B, the two first output terminals 111A, 111B, the first electric path 131, and 2 A circuit (first power circuit) including two switches 14A and 14B is configured.

  The connection conductor 35 includes two second output terminals 112A and 112B, two terminal plates 351, a connecting piece 352 that connects the second output terminals 112A and the two terminal plates 351, and second output terminals 112B and 2. A connection piece 353 that connects the two terminal plates 351. The connection conductor 35 is formed from a metal plate, for example.

  One of the two terminal plates 351 constitutes the second input terminal 102A together with the corresponding second locking spring 372, and the other of the two terminal plates 351 includes the second feeding terminal 102B together with the corresponding second locking spring 372. Configure.

  Each of the second input terminal 102 </ b> A and the second feed terminal 102 </ b> B holds an external electric wire with the terminal plate 351 and the second locking spring 372. Each of the terminals 102A and 102B is, for example, a screwless terminal (fast connection terminal). Such a screwless terminal is well known in the art and will not be described.

  As described above, the connection conductor 35 and the two second locking springs 372 include the second input terminal 102A, the second feed terminal 102B, the second output terminals 112A and 112B, and the second electric path 132. A circuit (second power circuit) is configured.

  The ground conductor 36 includes two third output terminals 113A and 113B, two terminal plates 361, and a connecting piece 362 for connecting the two third output terminals 113A and 113B and the two terminal plates 361. The ground conductor 36 is formed from, for example, a metal plate.

  One of the two terminal plates 361 constitutes the third input terminal 103A together with the corresponding third locking spring 373, and the other of the two terminal plates 361 configures the third feeding terminal 103B together with the corresponding third locking spring 373. Configure.

  Each of the third input terminal 103 </ b> A and the third feed terminal 103 </ b> B holds an external electric wire with the terminal plate 361 and the third locking spring 373. Each of the terminals 103A and 103B is, for example, a screwless terminal (fast connection terminal). Such a screwless terminal is well known in the art and will not be described.

  As described above, the grounding conductor 36 and the two third locking springs 373 include the third input terminal 103A, the third feed terminal 103B, the third output terminals 113A and 113B, and the third electric path 133. A circuit (ground circuit) is formed.

  The first release button 381 is used to deform the first locking spring 371 and remove the external electric wire from the terminals 101A and 101B. The second release button 382 is used to deform the second locking spring 372 and remove the external electric wires from the terminals 102A and 102B. The third release button 383 is used to deform the third locking spring 373 and remove the external electric wire from the terminals 103A and 103B. The first, second, and third release buttons 381, 382, and 383 are, for example, insulators. Specifically, the first, second, and third release buttons 381, 382, and 383 are formed of an insulating resin material. The resin material is preferably a resin having high heat resistance, more preferably a thermosetting resin (for example, a urea resin, a melamine resin, a phenol resin, or a melamine / phenol resin), and particularly preferably a urea resin.

[1.2 Housing]
The housing 2 accommodates the wiring circuit 1. As shown in FIGS. 1, 4, and 5, the housing 2 includes a body 4, a cover 7, and a plate 8.

  The body 4 has the wiring circuit 1 disposed therein. As shown in FIG. 4, the body 4 is opened at a first surface (upper surface in FIG. 4) facing a predetermined direction (upward direction in FIG. 4). In the present embodiment, the predetermined direction is one direction (front direction) in the thickness direction of the wiring device, and the first surface is the front surface of the body 4.

  As shown in FIGS. 6 and 7, the body 4 includes a first subbody (first part) 5 and a second subbody (second part) 6.

  The first sub-body 5 accommodates the terminals (terminals 101 to 103 and 111 to 113) of the wiring circuit 1. The second subbody 6 accommodates the electrical circuit (paths 131, 132, 133 and switches 14A, 14B) of the wiring circuit 1. In other words, the first subbody 5 is a region (terminal arrangement region portion) in which terminals (terminals 101 to 103, 111 to 113) are arranged in the body 4, and the second subbody 6 is a terminal (terminals 101 to 101) in the body 4. 103, 111-113) is a region (terminal non-arrangement region portion) where it is not disposed.

  The first subbody 5 accommodates terminals (terminals 101 to 103, 111 to 113). As shown in FIGS. 8A to 8F, the first sub-body 5 is a box in which a surface (front surface, third surface) 50 facing the predetermined direction (upward direction in FIG. 8E) is opened. Is.

  FIG. 8C is a front view of the first sub body 5, and FIG. 8F is a rear view of the first sub body 5. FIGS. 8B and 8D are side views of the length direction of the first sub-body 5 (the left-right direction in FIG. 8C), respectively, and FIGS. FIG. 9 is a side view of the first sub body 5 in the width direction (vertical direction in FIG. 8C).

  In the present embodiment, the first sub-body 5 has a rectangular outer shape on a surface (regular surface) orthogonal to the thickness direction (the front-rear direction of the wiring device, the vertical direction in FIG. 8E). The first sub body 5 may have a circular outer shape or a polygonal shape on the prescribed surface.

  As shown in FIG. 8C, the first sub-body 5 has nine accommodation spaces (first to ninth accommodation spaces) 511 to 519 therein.

  The first and second accommodation spaces 511 and 512 accommodate the first output terminals 111A and 111B, respectively. The third accommodation space 513 accommodates the first input terminal 101A and the first feed terminal 101B. The fourth and fifth accommodation spaces 514 and 515 accommodate the second output terminals 112A and 112B, respectively. The sixth accommodation space 516 accommodates the second input terminal 102A and the second feed terminal 102B. The seventh and eighth accommodation spaces 517 and 518 accommodate the third output terminals 113A and 113B, respectively. The ninth accommodation space 519 accommodates the third input terminal 103A and the third feed terminal 103B.

  The first and fourth accommodation spaces 511 and 514 are respectively at one end side in the width direction of the first sub body 5 (FIG. 8) on one end side in the length direction of the first sub body 5 (left end side in FIG. 8C). They are on the upper end side in (c) and the other end side (the lower end side in FIG. 8C). The seventh storage space 517 is located at the other end side in the length direction of the first subbody 5 from the first and fourth storage spaces 511 and 514 at the center in the width direction of the first subbody 5 (the right end in FIG. 8C). On the side).

  The second and fifth storage spaces 512 and 515 are respectively provided at one end side in the width direction of the first subbody 5 on the other end side in the length direction of the first subbody 5 (the right end side in FIG. 8C). 8 (c) at the upper end side) and the other end side (the lower end side in FIG. 8 (c)). The eighth storage space 518 is located at the other end side in the length direction of the first subbody 5 from the second and fifth storage spaces 512 and 515 at the center in the width direction of the first subbody 5 (the right end in FIG. 8C). On the side).

  The third housing space 513 is between the first and second housing spaces 511 and 512 on one end side in the width direction of the first subbody 5 (upper end side in FIG. 8C). The sixth storage space 516 is between the fourth and fifth storage spaces 514 and 515 on the other end side in the width direction of the first subbody 5 (the lower end side in FIG. 8C). The ninth storage space 519 is located between the seventh storage space 517 and the second and fifth storage spaces 512 and 515 in the central portion in the width direction of the first subbody 5.

  The first to third accommodation spaces 511 to 513 are separated from the fourth to ninth accommodation spaces 514 to 519 by the partition wall 521. The fourth to sixth accommodation spaces 514 to 516 are separated from the first to third and seventh to ninth accommodation spaces 511 to 513 and 517 to 519 by the partition wall 522. Therefore, the set of terminals 101A, 101B, 111A, and 111B, the set of terminals 102A, 102B, 112A, and 112B, and the set of terminals 103A, 103B, 113A, and 113B do not contact each other.

  The first storage space 511 is separated from the second and third storage spaces 512 and 513 by the partition wall 523. The second storage space 512 is separated from the first and third storage spaces 511 and 513 by the partition wall 524. As a result, the set of terminals 101A and 101B, the terminal 111A, and the terminal 111B are not in contact with each other.

  There are grooves 531 to 533 in the front surface 50 of the first sub-body 5. The groove 531 is located at one end in the length direction of the first sub body 5 (the left end in FIG. 8C), and allows the coupling piece 302A of the first plug connection conductor 30A to pass therethrough. The groove 532 is located at the other end in the length direction of the first sub-body 5 (the right end in FIG. 8C) and allows the coupling piece 302B of the second plug connection conductor 30B to pass therethrough. The groove 533 is located at one end in the width direction of the first sub-body 5 (the upper end in FIG. 8C) and allows the coupling piece 314 of the terminal connection conductor 31 to pass therethrough.

  The fourth storage space 514 is separated from the fifth and sixth storage spaces 515 and 516 by the partition wall 525. The fifth storage space 515 is separated from the fourth and sixth storage spaces 514 and 516 by the partition wall 526. Thereby, the set of the terminals 102A and 102B, the terminal 112A, and the terminal 112B are not in contact with each other.

  The partition wall 525 has a groove 534 through which the connection piece 352 of the connection conductor 35 passes. The partition wall 526 has a groove 535 through which the connection piece 353 of the connection conductor 35 passes.

  The seventh, eighth, and ninth accommodation spaces 517, 518, and 519 are spatially connected to each other.

  As shown in FIGS. 8C and 8F, the first sub-body 5 has six wire insertion holes 541, 541, 542, 542, 543, and 543 through which external wires pass, respectively. The two electric wire insertion holes 541 and 541 are at the bottom of the third accommodation space 513 corresponding to the two terminals 101 and 101, respectively. The two electric wire insertion holes 542 and 542 are at the bottom of the sixth accommodation space 516 corresponding to the two terminals 102 and 102, respectively. The two electric wire insertion holes 543 and 543 are at the bottom of the ninth accommodation space 519 corresponding to the two terminals 103 and 103, respectively. The wire insertion holes 541, 542, and 543 corresponding to the input terminals 101, 102, and 103 are first openings that expose the input terminals 101, 102, and 103, respectively.

  Further, the first subbody 5 has operation holes 551 to 553 for operating the first to third release buttons 381 to 383. The operation hole 551 is at the bottom of the third accommodation space 513 so that the first release button 381 is exposed. The operation hole 552 is at the bottom of the sixth storage space 516 so that the second release button 382 is exposed. The operation hole 553 is at the bottom of the ninth accommodation space 519 so that the third release button 383 is exposed.

  The first sub-body 5 has two support pieces (first support pieces) 561 spaced apart in the length direction at one end in the width direction (upper end in FIG. 8C) on the front surface 50. Further, the first sub-body 5 has two support pieces (second support pieces) 562 spaced apart in the length direction at the other end in the width direction (the lower end in FIG. 8C) on the front surface 50. The support pieces 561 and 562 are used to attach the first sub body 5 to the second sub body 6. The number of first support pieces 561 and the number of second support pieces 562 are not particularly limited.

  The first sub-body 5 has a surface (rear surface) 57 facing a direction (rear direction) opposite to the predetermined direction (front direction). The rear surface (fifth surface) 57 includes a central portion 571 and an edge portion 572 located on the front surface (third surface) 50 side from the central portion 571. The edge 572 of the rear surface 57 is used for attaching the first subbody 5 to the second subbody 6.

  In the present embodiment, the edge 572 includes three parts (first to third parts) 5721 to 5723 as shown in FIG. The first portion 5721 is a portion including both corners of one end of the rear surface 57 in the length direction (the left end in FIG. 8F). The second portion 5722 is a portion including the corner of one end in the width direction (the lower end in FIG. 8F) of the other end in the length direction on the rear surface 57 (the left end in FIG. 8F). The third portion 5723 is a portion including the corner of the other end in the width direction (the upper end in FIG. 8F) of the other end in the length direction on the rear surface 57 (the left end in FIG. 8F). Thus, the edge portion 572 preferably includes the square of the rear surface 57.

  The second sub body 6 accommodates an electric circuit (paths 131, 132, 133 and switches 14A, 14B).

  As shown in FIGS. 9A to 9F, the second subbody 6 has a main portion 60. For example, the main part 60 has a rectangular plate shape and has a window 61 at the center thereof. In other words, the main portion 60 has a frame shape having the window 61 in which the first sub-body 5 is disposed inside. The main part 60 has a rectangular outer shape on a surface (regular surface) orthogonal to the thickness direction (the front-rear direction of the wiring device, the vertical direction in FIG. 9E). The main portion 60 may have a circular outer shape or a polygonal shape on the specified surface.

  The main portion 60 has a recess 62 in which an electric circuit (paths 131, 132, 133 and switches 14A, 14B) is disposed on a surface (front surface) 601 facing the predetermined direction (front direction).

  The recess 62 is on one end (upper end in FIG. 9C) of the main portion 60 in the width direction (vertical direction in FIG. 9C) on the front surface (fourth surface) 601 of the main portion 60. The recess 62 has one first recess 621 and two second recesses 622 (622A, 622B).

  The 1st recessed part 621 is elongate shape along the length direction (left-right direction in FIG.9 (c)) of the main part 60. As shown in FIG. The first recess 621 accommodates the two fixing plates 312 and the connecting piece 313 of the terminal connection conductor 31.

  The two second recesses 622A and 622B are located at both ends of the first recess 621 (the left end and the right end in FIG. 9C) in the longitudinal direction of the main portion 60. The second recess 622A is The support plate 301A and the connection piece 302A of the first plug connection conductor 30A are accommodated, and the second recess 622B accommodates the support plate 301B and the connection piece 302B of the second plug connection conductor 30B.

  The second subbody 6 has two pairs of shaft portions 63 (63A, 63B). The pair of shaft portions 63A is on the bottom surface of the second recess 622A, and the pair of shaft portions 63B is on the bottom surface of the second recess 622B. Each pair of shaft portions 63 supports the corresponding handle 141 so as to be swingable between the pair of shaft portions 63.

  The second sub-body 6 has two support recesses (first support recesses) 641 and two support recesses (second support recesses) 642. The two first support recesses 641 are located at one edge of the window 61 in the width direction of the main portion 60 (upper edge in FIG. 10C) and are separated from each other in the length direction of the main portion 60. The two first support recesses 641 receive the two first support pieces 561 of the first subbody 5, respectively. The two second support recesses 642 are located on the other edge of the window 61 in the width direction of the main portion 60 (the lower edge in FIG. 10C) and are separated from each other in the length direction of the main portion 60. The two second support recesses 642 receive the two second support pieces 562 of the first subbody 5, respectively.

  The second subbody 6 has a support body 65. The support body 65 is on a surface (rear surface) 602 facing in a direction (rear direction) opposite to the predetermined direction (front direction). The support body 65 includes a peripheral wall 651 and a receiving portion 652. The peripheral wall 651 has a rectangular frame shape surrounding the window 61. The receiving portion 652 is at the end of the peripheral wall 651 opposite to the main portion 60 side. The receiving portion 652 protrudes into the window 61 in a plane orthogonal to the thickness direction of the second subbody 6. The receiving portion 652 is formed so as to contact the edge portion 572 of the first subbody 5 when the first subbody 5 is disposed in the window 61.

  In the present embodiment, the receiving portion 652 includes three receiving pieces (first to third receiving pieces) 6521 to 6523 as shown in FIG. The first receiving piece 6521 supports the first portion 5721 of the edge 572 of the first subbody 5. The second receiving piece 6522 supports the second portion 5722 of the edge 572 of the first subbody 5. The third receiving piece 6523 supports the third portion 5723 of the edge 572 of the first subbody 5.

  As described above, the support body 65 supports the first subbody 5 with the edge portion 572 by the receiving portion 652.

  The second sub body 6 has seven convex portions (first engaging portions) 66. The seven convex portions 66 are used for fixing the cover 7 to the body 4. That is, it is not necessary to use a screw for joining the cover 7 and the body 4.

  Each convex portion 66 includes a leg piece 661 extending along the thickness direction of the main portion 60 and a fixed piece 662 at the tip of the leg piece 661. In addition, the number of the convex parts 66 is not specifically limited.

  The seven convex portions 66 are two first convex portions 66A, one second convex portion 66B, two third convex portions 66C, and two fourth convex portions 66D.

  The two first convex portions 66A are located at one end in the width direction of the main portion 60 (the upper end in FIG. 9C) and are separated from each other in the length direction of the main portion 60 (the left-right direction in FIG. 9C). doing. The 2nd convex part 66B is located in the center of the other end (lower end in FIG.9 (c)) of the width direction of the main part 60. FIG. The two third convex portions 66C are located at both ends in the length direction of the main portion 60 (left end and right end in FIG. 9C), respectively, and one end in the width direction of the main portion 60 (upper end in FIG. 9C). ) Is on the side. The two fourth convex portions 66D are located at both ends in the length direction of the main portion 60 (left end and right end in FIG. 9C), respectively, and in the other end in the width direction of the main portion 60 (in FIG. 9C). It is on the lower end side.

  The second subbody 6 has two attachment holes 67. The attachment hole 67 is used for fixing the housing 2 at a predetermined position. For example, the mounting hole 67 is used for fixing the housing 2 to a construction surface (for example, a wall surface) using a screw. The number of attachment holes 67 is not particularly limited.

  As described above, the body 4 is composed of two parts, the first subbody 5 and the second subbody 6. As for the material of the first subbody 5 (first material) and the material of the second subbody 6 (second material), the first material has higher heat resistance than the second material, and the second material has higher mechanical strength than the first material. Selected to be higher.

  The heat resistance is evaluated by, for example, nonflammability, flame retardancy, self-extinguishing, and slow flame retardance. The heat resistance of the first sub body 5 and the second sub body 6 can be evaluated by, for example, a prescribed heat resistance test. As such a heat test, for example, a heat test specified in “JIS C 8306 1996 14” can be adopted.

  The mechanical strength is an indicator for mechanical deformation or destruction of a material, for example. The mechanical strength is evaluated by, for example, yield strength, tensile strength, ductility, toughness, bending strength (bending strength), and hardness. The mechanical strength of the first sub body 5 and the second sub body 6 can be evaluated by, for example, a prescribed strength test. As such a strength test, for example, an outer strength test defined in “JIS C 8306 1996 13.5” can be adopted.

  The first material is, for example, a ceramic material or a thermosetting resin. The thermosetting resin is selected from, for example, a urea resin, a melamine resin, a phenol resin, and a melamine / phenol resin. In particular, the first material is preferably a urea resin.

  The second material is, for example, a thermoplastic resin. The thermoplastic resin is selected from, for example, polycarbonate (PC) resin, ABS resin, polybutylene terephthalate (PBT) resin, and nylon resin. In particular, regarding the second material, among the thermoplastic resins, a material having more excellent heat resistance is preferable. Furthermore, regarding the second material, among the thermoplastic resins, a material having better tracking resistance is preferable.

  The second material preferably has higher elasticity (lower rigidity) than the first material. That is, if a material having high elasticity is used as the second material, it is possible to suppress damage to the convex portion 66 for fixing the cover 7 to the body 4.

  As shown in FIG. 4, the cover 7 is fixed to the body 4 so as to cover the first surface (front surface) of the body 4. As shown in FIG. 11, the cover 7 includes a main body 70, two doors 71 (71 </ b> A, 71 </ b> B), two fixing tools 72 (72 </ b> A, 72 </ b> B), and two pairs of springs 73.

  The main body 70 has a dimension that covers the front surface (first surface) of the body 4. For example, the main body 70 has a rectangular plate shape. The main body 70 may have a disk shape or a polygonal plate shape.

  The main body 70 has a surface (front surface) 701 facing the predetermined direction (front direction). The main body 70 has a surface (rear surface) 702 that faces in a direction (rear direction) opposite to the predetermined direction (front direction). The front surface 701 includes a central portion 7011 and an edge portion 7012 that surrounds the central portion 7011. As shown in FIG. 4, the edge portion 7012 is located on the rear surface 702 side from the central portion 7011.

  As shown in FIG. 11, the main body 70 has six openings (second openings) 702 (702A, 702B), 703 (703A, 703B), and 704 (704A, 704B). Each second opening 702 is configured to pass a blade of the plug. That is, each second opening 702 is a blade insertion hole.

  A set of three second openings 702A, 703A, and 704A constitutes an insertion port corresponding to the first plug connecting portion 11A. The second openings 702A, 703A, and 704A expose the first, second, and third output terminals 111A, 112A, and 113A, respectively. A set of three second openings 702B, 703B, and 704B constitute an insertion port corresponding to the second plug connection portion 11B. The second openings 702B, 703B, and 704B expose the first, second, and third output terminals 111B, 112B, and 113B, respectively.

  The main body 70 has seven concave portions (second engaging portions) 705. The seven recesses 705 are used to fix the cover 7 to the body 4. Each concave portion 705 receives the fixing piece 662 of the corresponding convex portion 66. The number of recesses 705 is not particularly limited.

  Here, for each convex portion 66, the leg piece 661 has a dimension such that the rear surface 702 of the cover 7 is the front surface of the body 4 (the front surface 50 of the first subbody 5 and the main portion 60 of the second subbody 6). The fixing piece 662 is selected so as to fit into the corresponding recess 705 when it contacts the front surface 601).

  The seven recesses 705 are two first recesses 705A, one second recess 705B, two third recesses 705C, and two fourth recesses 705D.

  The two first recesses 705 </ b> A are located at one end in the width direction of the main body 70 (upper right end in FIG. 11) and are separated from each other in the length direction of the main body 70. The second recess 705B is located at the center of the other end in the width direction of the main body 70 (the lower left end in FIG. 11). The two third recesses 705C are respectively located at both ends in the length direction of the main body 70 (the upper left end and the lower right end in FIG. 11) and are on one end in the width direction of the main body 70 (the upper right end in FIG. 11). The two fourth recesses 705D are respectively located at both ends in the length direction of the main body 70 (the upper left end and the lower right end in FIG. 11) and are on the other end in the width direction of the main body 70 (the lower left end in FIG. 1).

  The main body 70 has two openings (third openings) 706 (706A, 706B). The third opening 706A is in a portion of the main body 70 that faces the handle 141A. The third opening 706 </ b> B is in a portion of the main body 70 that faces the handle 141 </ b> B. That is, the two third openings 706A and 706B expose the two handles 141A and 141B, respectively.

  The main body 70 has two exposure holes 707. The two exposure holes 707 expose the two attachment holes 67 of the second subbody 5 respectively. The number of exposure holes 707 is changed according to the number of attachment holes 67.

  The fixing tool 72A attaches the door 71A to the rear surface 702 of the main body 70 so as to be movable between an open position and a closed position. The open position is a position where the door 71A does not block the second openings 702A and 703A. The closed position is a position where the door 71A closes the second openings 702A and 703A. The two springs (coil springs) 73A bias the door body 71A so that the door body 71A is located at the closed position.

  The fixing tool 72B attaches the door 71B to the rear surface 702 of the main body 70 so as to be movable between an open position and a closed position. The open position is a position where the door 71B does not block the second openings 702B and 703B. The closed position is a position where the door 71B closes the second openings 702B and 703B. The two springs (coil springs) 73B bias the door body 71B so that the door body 71B is located at the closed position.

  The main body 70 of the cover 7, each door 71, and each fixing tool 72 are formed of resin, for example. The resin is, for example, a thermosetting resin (for example, urea resin, melamine resin, phenol resin, melamine / phenol resin) or a thermoplastic resin (for example, polycarbonate resin, ABS resin, polybutylene terephthalate resin, nylon resin). As a material of the cover 7, a thermosetting resin is preferable, and a urea resin is particularly preferable. In addition, when using a thermoplastic resin as a material of the cover 7, the material (for example, polycarbonate resin) which is more excellent in heat resistance, tracking property, and a flame retardance is preferable among thermoplastic resins.

  The plate 8 is attached to the front surface 701 of the cover 7 as shown in FIG. As shown in FIG. 11, the plate 8 has a dimension that covers the front surface 701 of the cover 7. For example, the plate 8 has a rectangular plate shape. The plate 8 may be disk-shaped or polygonal plate-shaped.

  As shown in FIG. 11, the plate 8 has one window hole (first window hole) 80 and two window holes (second window holes) 81 (81A, 81B). The first window hole 80 exposes the central portion 7011 of the front surface 701 of the cover 7. The second window holes 81A and 81B expose the two third openings 706A and 706B of the cover 7, respectively. That is, the plate 8 does not cover the second openings 705 and the third openings 706 of the cover 7, but covers the exposed holes 707 (that is, the mounting holes 67) of the cover 7. It is attached to the opposite surface (upper surface in FIG. 4) 701.

  The material of the plate 8 is selected from, for example, a resin (for example, a thermoplastic resin and a thermosetting resin), an inorganic material (for example, glass), and a metal. Examples of the thermosetting resin include urea resin, melamine resin, phenol resin, and melamine / phenol resin. The thermoplastic resin is, for example, a polycarbonate resin, an ABS resin, a polybutylene terephthalate resin, or a nylon resin.

[2. assembly]
The wiring device of this embodiment described above is assembled as follows, for example. In addition, the assembly method of the wiring instrument of the following this embodiment is an example.

  First, the first sub body 5 is attached to the second sub body 6. In attaching the first subbody 5 to the second subbody 6, the first subbody 5 is inserted into the window 61 of the second subbody 6. Then, the two first support pieces 561 are fitted into the two support recesses 641, respectively, and the two second support pieces 562 are fitted into the two support recesses 642, respectively. In addition, the three portions 5721 to 5723 of the edge portion 572 are supported by the three receiving pieces 6521 to 6523 of the support body 65, respectively. As a result, a body 4 as shown in FIGS. 10A to 10F is obtained.

  In the present embodiment, the first sub body 5 and the second sub body 6 are separate bodies. The first sub body 5 is mechanically coupled to the second sub body 6. Alternatively, the first subbody 5 may be chemically bonded to the second subbody 6 using an adhesive or the like. Alternatively, the first sub body 5 and the second sub body 6 may be integrated. For example, if insert molding or two-color molding is used, the first subbody 5 and the second subbody 6 can be formed integrally.

  In the body 4, as shown in FIG. 10C, the first recess 621 is connected to the third accommodation space 513 through the groove 533 of the first subbody 5. The second recess 622 </ b> A is connected to the first accommodation space 511 through the groove 531 of the first subbody 5. Further, the second recess 622 </ b> B is connected to the second accommodation space 512 via the groove 532 of the first subbody 5.

  Therefore, the third accommodation space 513 is connected to the first accommodation space 511 via the groove 533, the first recess 621, the second recess 622 </ b> A, and the groove 531. The third storage space 513 is connected to the second storage space 512 via the groove 533, the first recess 621, the second recess 622 </ b> B, and the groove 532.

  The first to third accommodation spaces 511 to 513 and the grooves 531 to 533 of the first sub body 5 and the recess 62 of the second sub body 6 constitute a space for accommodating the first power circuit of the electric circuit 12. Further, the fourth to sixth accommodation spaces 514 to 516 and the grooves 534 and 535 of the first sub body 5 constitute a space for accommodating the second power circuit of the electric circuit 12. Further, the seventh to ninth accommodation spaces 517 to 519 constitute a space for accommodating the ground circuit of the electric circuit 12.

  Next, members constituting the wiring circuit 1 (plug connection conductors 30A and 30B, terminal connection conductor 31, movable plates 32A and 32B, transducers 33A and 33B, coil springs 34A and 34B, handles 141A and 141, connection conductors 35, the ground conductor 36, six lock springs 371, 371, 372, 372, 373, 373, and three release buttons 381 to 383) are accommodated in the body 4.

  In the first plug connection conductor 30A, the first output terminal 111A is in the first receiving space 511, the support plate 301A is outside the first subbody 5 (that is, the second recess 622A in the second subbody 6), and the connecting piece 302A is It arrange | positions so that it may each be located in the groove | channel 531.

  In the second plug connection conductor 30B, the second output terminal 112A is in the second receiving space 512, the support plate 301A is outside the first subbody 5 (that is, the second recess 622B in the second subbody 6), and the connecting piece 302B is It arrange | positions so that it may each be located in the groove | channel 532.

  In the terminal connection conductor 31, the two terminal plates 311 are connected to the third receiving space 513, the two fixing plates 312 and the connecting piece 313 are connected to the outside of the first subbody 5 (that is, the recess 62 of the second subbody 6). It arrange | positions so that the piece 314 may be located in the groove | channel 533. FIG. In particular, the connecting piece 313 is accommodated in the first recess 621, the fixing plate 312A is accommodated in the second recess 622A, and the fixing plate 312B is accommodated in the second recess 622B.

  Further, the two first locking springs 371 and the first release button 381 are accommodated in the third accommodation space 513, whereby the first input terminal 101A and the first feed terminal 101B are configured.

  Furthermore, the handle 141A is disposed in the second recess 622A together with the movable plate 32A, the converter 33A, and the coil spring 34A by a pair of shaft portions 63A. Thus, the switch 14A is configured.

  The handle 141B is disposed in the second recess 622B together with the movable plate 32B, the converter 33B, and the coil spring 34B by a pair of shaft portions 63B. Thus, the switch 14B is configured.

  The connection conductor 35 includes a second output terminal 112A in the fourth housing space 514, a second output terminal 112B in the fifth housing space 515, a terminal plate 351 in the sixth housing space 516, and a connecting piece 352 in the groove 534. The connecting pieces 353 are arranged so as to be positioned in the grooves 535, respectively. The two second locking springs 372 and the second release button 382 are housed in the sixth housing space 516, thereby forming the second input terminal 102A and the second feed terminal 102B.

  The ground conductor 36 is positioned such that the third output terminal 113A is positioned in the seventh receiving space 517, the third output terminal 113B is positioned in the eighth receiving space 518, and the two terminal plates 361 are positioned in the ninth receiving space 519. Be placed. In addition, the two third locking springs 373 and the third release button 383 are accommodated in the ninth accommodation space 519, whereby the third input terminal 103A and the third feed terminal 103B are configured.

  Next, the cover 7 is attached to the body 4. In attaching the cover 7 to the body 4, the seven convex portions 66 (66A, 66A, 66B, 66C, 66C, 66D, 66D) of the second sub-body 6 are replaced with the corresponding seven concave portions 705 (705A, 705A, 705B, 705C, 705C, 706D, and 705D). That is, the cover 7 is fixed to the housing 2 by fitting the convex portion 66 into the concave portion 705.

  Finally, the plate 8 is attached to the front surface 701 of the cover 7. Thereby, the wiring apparatus shown to Fig.12 (a)-(e) is obtained.

[3. Feature]
The wiring device of the present embodiment described above has the following first feature.

  In the first feature, the wiring device includes a wiring circuit 1 and a housing 2 that houses the wiring circuit 1. The wiring circuit 1 includes an electric circuit 12 and a terminal for connecting an external circuit to the electric circuit 12. The housing 2 includes a first part (first subbody) 5 that accommodates the terminals 100 (101 to 103, 111 to 113), and a second part (second subbody) 6 that accommodates the electric circuit 12. The 1st site | part 5 is formed with a 1st material. The second portion 6 is made of a second material. The first material has higher heat resistance than the second material. The second material has higher mechanical strength than the first material.

  Therefore, the first subbody 5 formed of the first material has higher heat resistance than the first subbody 5 formed of the second material. That is, the region (first subbody) 5 in which the terminal 100 is disposed has higher heat resistance than the region (second subbody) 6 in which the terminal 100 is not disposed. Therefore, the tolerance with respect to the heat_generation | fever of the terminal 100 (101-103,111-113) can be made high. Accordingly, the first sub-body 5 formed of the first material can safely accommodate terminals that tend to be relatively hot.

  Further, the second sub-body 6 formed of the second material has higher mechanical strength than the second sub-body 6 formed of the first material. That is, the region (second subbody) 6 where the terminal 100 is not disposed has higher mechanical strength than the region (first subbody) 5 where the terminal 100 is disposed. Therefore, the second subbody 6 formed of the second material can be made thinner than the second subbody 6 formed of the first material. In particular, in this embodiment, since the 2nd subbody 6 is attached to a construction surface, it is preferable that thickness is thin.

  Therefore, according to the wiring instrument of this embodiment, there exists an effect that the tolerance with respect to the heat_generation | fever of the terminal 100 (101-103,111-113) can be made high, and thickness can be made thin.

  Moreover, the wiring device of this embodiment has the following 2nd-4th characteristics. The second to fourth features are arbitrary features.

  In the second feature, in the first feature, the first material is a ceramic material or a thermosetting resin.

  In the third feature, in the first feature, the first material is a urea resin.

  In the fourth feature, in any one of the first to third features, the second portion 6 is formed of a thermoplastic resin.

  Moreover, the wiring device of this embodiment has the following fifth to seventh characteristics. The fifth to seventh features are arbitrary features.

  In the fifth feature, in any one of the first to fourth features, the housing 2 has a first surface (the front surface 50 of the first subbody 5 and the second surface) facing a predetermined direction (upward direction in FIG. 4). The body 4 covers the body 4 in which the front surface 601) of the sub body 6 is opened and the wiring circuit 1 is disposed therein, and the first surface of the body 4 (the front surface 50 of the first sub body 5 and the front surface 601 of the second sub body 6). 4, and a cover 7 fixed to the cover 4. The body 4 includes a first part 5 and a second part 6.

  In the sixth feature, in the fifth feature, the cover 7 has a recess (second engagement portion) 705. The second portion 6 has a convex portion (first engaging portion) 66 that fits into the concave portion 705. The cover 7 is fixed to the body 4 by fitting the convex portion 66 into the concave portion 705. According to this feature, that is, it is not necessary to use a screw for joining the cover 7 and the body 4.

  In the seventh feature, in the sixth feature, the second material is more elastic than the first material. Here, the second sub-body 6 formed of the second material has higher elasticity than the second sub-body 6 formed of the first material. Therefore, it is possible to suppress damage to the convex portion 66 for fixing the cover 7 to the body 4.

  The wiring device of the present embodiment has the following eighth feature. The eighth feature is an arbitrary feature.

  In the eighth feature, in any one of the fifth to seventh features, the second portion 6 has a mounting hole 67 for fixing the housing 2 to a predetermined position. The housing 2 further includes a plate 8 that is attached to a surface (an upper surface in FIG. 4) 701 of the cover 7 opposite to the body 4 so as to cover the attachment hole 67. Here, the second sub-body 6 made of the second material has higher mechanical strength than the second sub-body 6 made of the first material. Therefore, the body 4 can be prevented from being damaged when the body 4 is fixed at a predetermined position. Further, since the mounting hole 67 is hidden by the plate 8, the aesthetic appearance of the wiring device can be improved.

  Moreover, the wiring device of this embodiment has the following ninth and tenth characteristics. The ninth and tenth features are optional features.

  In the ninth feature, in any one of the fifth to eighth features, the terminal 100 includes an input terminal 101 for receiving power from a power source and an output terminal 111 for supplying power to a load. Including. The electric circuit 12 includes a path 131 that electrically connects the input terminal 101 and the output terminal 111. The output terminal 111 is disposed on the first surface (the front surface 50 of the first subbody 5 and the front surface 601 of the second subbody 6). The input terminal 101 is disposed on the second surface (the rear surface 57 of the first subbody 5) facing in the opposite direction (the rear direction of the wiring device) to the predetermined direction (the front direction of the wiring device). The first part (first subbody) 5 has a first opening (electric wire insertion hole) 541 that exposes the input terminal 101. The cover 7 has a second opening 702 that exposes the output terminal 111.

  In the tenth feature, in the ninth feature, the input terminal 101 is configured to receive an external electric wire. The output terminal 111 is configured to receive a plug blade. The first opening 541 is configured to pass an external electric wire. The second opening 702 is configured to pass the plug blade.

  Moreover, the wiring device of this embodiment has the following 11th and 12th characteristics. The eleventh and twelfth features are optional features.

  In the eleventh feature, in the tenth feature, the wiring circuit 1 includes a switch 14. The switch 14 includes a contact mechanism 140 connected between the input terminal 101 and the output terminal 111 in the path 131 and a handle 141 for operating the contact mechanism 140. The cover 7 has a third opening 706 that exposes the handle 141.

  According to a twelfth feature, in the eleventh feature, the first part (first subbody) 5 has a box shape in which a third surface (front surface) 50 facing a predetermined direction (front direction of the wiring device) is opened. . The 2nd site | part (2nd subbody) 6 is plate shape which has the window 61 by which the 1st site | part (1st subbody) 5 is arrange | positioned inside. The 2nd site | part 6 has the recessed part 62 by which the electric circuit 12 is arrange | positioned in the 4th surface (front surface) 601 which faced the predetermined direction (front direction of a wiring device).

  The wiring device of the present embodiment has the following thirteenth and fourteenth features. The ninth and tenth features are optional features.

  In the thirteenth feature, in the twelfth feature, the first portion 5 and the second portion 6 are separate. The first part 5 is mechanically coupled to the second part 6.

  In a fourteenth feature, in the thirteenth feature, the first portion 5 has a fifth surface (rear surface) 57 facing in the opposite direction (the rear direction of the wiring device). The fifth surface 57 includes a central portion 571 and an edge portion 572 located on the third surface (front surface) 50 side from the central portion 571. The second portion 6 has a support 65 that protrudes into the window 61 in a plane parallel to the fifth surface (rear surface) 57 and supports the first portion 5 with the edge 572.

  Note that the wiring device of the present embodiment may have the following fifteenth feature instead of the thirteenth feature. The fifteenth feature is an arbitrary feature.

  In the fifteenth feature, in the twelfth feature, the first portion 5 and the second portion 6 are integral. That is, the first sub body 5 and the second sub body 6 are one part.

  The wiring device of this embodiment is a so-called outlet with a switch. Here, the outlet without a switch can be mentioned as a modification of the wiring device of this embodiment. Moreover, a switch can be mentioned as another modification of the wiring device of this embodiment.

  In the present embodiment, the entire first sub-body 5 is formed of the first material. However, the first sub-body 5 may be formed of the first material only in the portion that accommodates the terminal 100. For example, the site | part which accommodates connection piece 302,314,352,353,362 in the 1st subbody 5 does not necessarily need to be formed with a 1st material. In addition, only the portion that accommodates the predetermined terminal 100 in the first sub-body 5 may be formed of the first material. For example, in the first sub-body 5, a portion that accommodates the power terminals 101, 102, 111, and 112 is formed of the first material, and a portion that accommodates the ground terminals 103 and 113 is a material other than the first material (for example, the second material). ).

  Moreover, the housing 2 in the wiring device of this embodiment is the housing 2 for accommodating the wiring circuit 1 of a wiring device. The wiring circuit 1 includes an electric circuit 12 and a terminal 100 for connecting an external electric wire to the electric circuit 12. The housing 2 includes a first part (first subbody) 5 that accommodates the terminal 100 and a second part (second subbody) 6 that accommodates the electric circuit 12. The 1st site | part 5 is formed with a 1st material. The second portion 6 is made of a second material. The first material has higher heat resistance than the second material. The second material has higher mechanical strength than the first material.

  According to the housing 2 of the present embodiment, it is possible to increase the resistance to heat generation of the terminals 100 (101 to 103, 111 to 113) and to reduce the thickness.

DESCRIPTION OF SYMBOLS 1 Wiring circuit 101-103 terminal 111-113 terminal 12 Electrical circuit 2 Housing 5 1st site | part (1st subbody)
6 Second part (second subbody)

Claims (16)

Wiring circuit,
A housing for housing the wiring circuit;
With
The wiring circuit is
An electrical circuit;
A terminal for connecting an external circuit to the electric circuit;
Have
The housing is
A first portion for accommodating the terminal;
A second part for accommodating the electric circuit;
Have
The first portion is formed of a first material;
The second portion is formed of a second material;
The first material has higher heat resistance than the second material,
The wiring material, wherein the second material has higher mechanical strength than the first material. The wiring device according to claim 1, wherein the first material is a ceramic material or a thermosetting resin. The wiring device according to claim 1, wherein the first material is urea resin. The wiring device according to any one of claims 1 to 3, wherein the second part is formed of a thermoplastic resin. The housing is
A body in which a first surface facing a predetermined direction is opened and the wiring circuit is disposed inside;
A cover fixed to the body so as to cover the first surface of the body;
With
The wiring body according to any one of claims 1 to 4, wherein the body includes the first part and the second part. The cover has a recess,
The second part has a convex part that fits into the concave part,
The wiring device according to claim 5, wherein the cover is fixed to the body by fitting the convex portion into the concave portion. The wiring device according to claim 6, wherein the second material has higher elasticity than the first material. The second part has a mounting hole for fixing the housing at a predetermined position,
The wiring device according to any one of claims 5 to 7, wherein the housing further includes a plate attached to a surface of the cover opposite to the body so as to cover the attachment hole. . The terminal is
An input terminal for receiving power from the power source;
An output terminal for supplying power to the load;
Including
The electrical circuit has a path for electrically connecting the input terminal and the output terminal,
The output terminal is disposed on the first surface side,
The input terminal is disposed on the second surface side facing the direction opposite to the predetermined direction,
The first portion has a first opening that exposes the input terminal;
The wiring device according to claim 5, wherein the cover has a second opening that exposes the output terminal. The input terminal is configured to receive an external electric wire;
The output terminal is configured to receive a blade of a plug;
The first opening is configured to pass the external electric wire,
The wiring device according to claim 9, wherein the second opening is configured to pass the blade of the plug. The electrical circuit has a switch;
The switch
A contact mechanism connected between the input terminal and the output terminal in the path;
A handle for operating the contact mechanism;
Have
The wiring device according to claim 10, wherein the cover has a third opening that exposes the handle. The first part has a box shape in which a third surface facing the predetermined direction is opened,
The second part is a plate having a window in which the first part is disposed inside,
The wiring device according to claim 11, wherein the second portion has a recess in which the electric circuit is disposed on a fourth surface facing the predetermined direction. The first part and the second part are separate bodies,
The wiring device according to claim 12, wherein the first part is mechanically coupled to the second part. The first portion has a fifth surface facing in the opposite direction;
The fifth surface has a center portion and an edge portion located on the third surface side from the center portion,
The wiring device according to claim 13, wherein the second portion has a support body that protrudes into the window in a plane parallel to the fifth surface and supports the first portion at the edge. . The wiring device according to claim 12, wherein the first portion and the second portion are integrated. A housing for accommodating a wiring circuit of a wiring device,
The wiring circuit is
An electrical circuit;
A terminal for connecting an external electric wire to the electric circuit;
Have
The housing is
A first portion for accommodating the terminal;
A second part for accommodating the electric circuit;
Have
The first portion is formed of a first material;
The second portion is formed of a second material;
The first material has higher heat resistance than the second material,
The second material has a mechanical strength higher than that of the first material.

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