JP2010272415A - Switch device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a switch device for excellently radiating outside of a switch device the heat generated in a contact terminal or a terminal plate. <P>SOLUTION: The switch device includes a switch body structured by a box, a contact terminal 30 and a locking spring which are housed inside the switch body and are electrically connected with an electric wire. The contact terminal 30 includes an electric wire contact part 32 contacting with the electric wire, a locking spring contact part 31 opposed to the electric wire contact part 32 and contacting with the locking spring, and a connecting part 33 for connecting the electric wire contact part 32 with the locking spring contact part 31 each other. The switch body includes a body 10 which is formed of a resin material having a thermal conductivity higher than air and housed the contact terminal 30. Then, the connecting part 33 of the contact terminal 30 makes a surface contact with a first inner face 11c1 of a periphery wall part 11 of the body 10. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a switch device including a switch body constituted by a box, a connection terminal housed in the switch body, and electrically connected to an electric wire and a lock spring.

  In general, a switch device includes a plurality of contact terminals and terminal plates that are accommodated by being inserted into an accommodating portion provided in a switch body of a box body, and an opening and closing element that performs electrical conduction and interruption between the contact terminals. The housed configuration is known. In such a switch device, an electric wire is connected to each of the contact terminal and the terminal plate via a lock spring, and electrical conduction and interruption between the electric wires are performed by switching operation of the switching elements.

  In each of the contact terminal and the terminal plate in the switch device described above, a lock spring contact portion that contacts the lock spring, a wire contact portion that faces the lock spring contact portion and contacts the electric wire, and these lock spring contact portions And a connecting portion that connects the wire contact portion to each other. Thereby, an electric wire is pinched | interposed between a lock spring and an electric wire contact part, and each electrical conduction with an electric wire, a contact terminal, and a terminal board is achieved (for example, refer patent document 1).

JP 2002-163959 A

  By the way, in the above-described switch device, in each contact terminal and terminal plate housed in the switch body housing portion, each connecting portion is disposed outside the housing portion in the insertion direction of the contact terminal and terminal plate with respect to the switch body. Was configured. That is, the storage portion and each connecting portion were in a non-contact state. For this reason, there has been a problem that heat generated due to the electrical resistance of each contact terminal and terminal plate is confined in the switch body without being transferred to the housing part of the switch body.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a switch device that can well dissipate heat generated in a contact terminal or a terminal plate to the outside of the switch device. .

In the following, means for achieving the above object and its effects are described.
(1) The invention according to claim 1 is a switch device comprising a switch body constituted by a box, a connection terminal housed in the switch body and electrically connected to the electric wire and a lock spring. The connection terminal includes an electric wire contact portion that contacts the electric wire, a lock spring contact portion that faces the electric wire contact portion and contacts the lock spring, and the electric wire contact portion and the lock spring contact portion. And a switch body is formed of a resin material having a thermal conductivity higher than that of air, and a body in which the connection terminal is accommodated is provided. The gist is to make surface contact with the inner surface.

  According to the present invention, since the body of the switch body is provided with a resin material having a higher thermal conductivity than air and the connecting portion is in surface contact with the inner surface of the peripheral wall portion, the heat caused by the electrical resistance of the connection terminal is the peripheral wall portion. Heat is transferred to. The heat transferred to the body is dissipated to the outside of the switch device. Therefore, it is possible to suppress the generation of excessive heat inside the switch body due to the heat of the connection terminals being trapped inside the switch body.

  (2) The invention according to claim 2 is the switch device according to claim 1, wherein the body is provided with a peripheral wall portion constituting an outer frame, and the connecting portion has an inner surface and a surface of the peripheral wall portion. The gist is to make contact.

  According to the present invention, since the peripheral wall portion of the body and the connecting portion are in surface contact with each other, a dedicated shape for radiating heat to the outside of the switch device by making surface contact with the connecting portion on the body can be omitted. Therefore, the shape of the body can be simplified, and the cost of the switch device can be reduced.

  (3) The invention according to claim 3 is the gist of the switch device according to claim 2, wherein the connecting portion contacts the entire surface of the connecting portion facing the inner surface of the peripheral wall portion. To do.

  According to the present invention, since the contact area between the connecting portion and the peripheral wall portion can be increased as compared with the case where the connecting portion and the peripheral wall portion are only partially in contact with each other, heat transfer from the connecting portion to the peripheral wall portion is further improved. It can be done efficiently. Therefore, the heat of the connection terminal can be radiated more efficiently to the outside of the switch device.

  (4) The invention according to claim 4 is the switch device according to any one of claims 1 to 3, wherein the switch body is opened and closed to switch an on state and an off state of the switch device. An element is disposed, and the connection terminal is provided with an opening / closing element contact portion that contacts the opening / closing element, and a contact connecting portion that connects the opening / closing element contact portion and the connecting portion, The gist is to make surface contact with the inner surface of the body.

  According to this invention, since the contact connecting portion is in surface contact with the inner surface of the body, the heat caused by the electrical resistance of the connection terminal is transferred to the peripheral wall portion. This further increases the contact area between the connection terminal and the inner surface of the body, so that the heat of the connection terminal can be efficiently transferred to the body.

  (5) The invention according to claim 5 is the switch device according to claim 4, wherein the contact connecting portion contacts the entire surface of the contact connecting portion facing the inner surface of the body. The gist.

  According to the present invention, since the contact area between the connecting portion and the inner surface of the body can be increased as compared with the case where the contact connecting portion and the body are only partially in contact with each other, heat transfer from the contact connecting portion to the body can be achieved. It can be performed more efficiently. Therefore, the heat of the connection terminal can be radiated more efficiently to the outside of the switch device.

  (6) The invention according to claim 6 is the switch device according to any one of claims 1 to 5, wherein the connection terminal includes the connection terminal in the insertion direction of the connection terminal. The gist is that a restricting portion for restricting movement of the lock spring is provided.

  According to the present invention, by providing the restricting portion on the connection terminal, the number of parts of the entire switch device can be reduced as compared with the case where the connection terminal and the restricting portion are configured as separate members. It becomes like this.

  (7) The invention according to claim 7 is a switch device comprising a switch body constituted by a box, a connection terminal housed in the switch body and electrically connected to the electric wire and a lock spring. The connection terminal includes an electric wire contact portion that contacts the electric wire, a lock spring contact portion that faces the electric wire contact portion and contacts the lock spring, and the electric wire contact portion and the lock spring contact portion. And a switch body is formed of a resin material having a thermal conductivity higher than that of air, and a body in which the connection terminal is accommodated is provided. The gist is that a heat dissipating member made of a material having a thermal conductivity higher than that of air is disposed between the connecting portion and the body.

  According to this invention, the heat generated in the connection terminal is transferred to the heat radiating member. The heat transferred to the heat radiating member is transferred to the body and radiated to the outside of the switch device. Therefore, it is possible to suppress the generation of excessive heat inside the switch body due to the heat of the connection terminals being trapped inside the switch body.

  ADVANTAGE OF THE INVENTION According to this invention, the switch apparatus which can thermally radiate the heat | fever which generate | occur | produces in a contact terminal or a terminal board favorable to the exterior of a switch apparatus can be provided.

The perspective view which shows the disassembled perspective structure of the switch apparatus about one Embodiment which actualized the switch apparatus of this invention. About the switch device of the embodiment, (a) a cross-sectional view showing a cross-sectional structure when the handle of the switch device is turned off, (b) a cross-section showing a cross-sectional structure when the handle of the switch device is turned on Figure. Regarding the contact terminal of the switch device of the embodiment, (a) a front view showing a front structure of the contact terminal, (b) a plan view showing a planar structure of the contact terminal, and (c) a side structure of the connection terminal. Side view. About the terminal board of the switch apparatus of the embodiment, (a) The front view which shows the front structure of the terminal board, (b) The top view which shows the planar structure of the terminal board, (c) The side structure of the terminal board is shown. Side view. (A) The top view which shows the planar structure of the body about the body of the switch apparatus of the embodiment, (b) The sectional view which shows the cross-sectional structure of the body. The top view which shows the planar structure of the state which inserted the contact terminal and the terminal board in the body about the switch apparatus of the embodiment. About the switch device of the embodiment, (a) a cross-sectional view showing a cross-sectional structure in a state where contact terminals and terminal plates are inserted into the body, (b) a cross-section showing a cross-sectional structure in a state where contact terminals and terminal plates are inserted into the body Figure. The top view which shows the planar structure of the state which inserted the contact terminal and the terminal board in the body about the switch apparatus as a comparative example. Sectional drawing which shows the cross-section of the state which inserted the contact terminal and the terminal board in the body about the switch apparatus as a comparative example.

  With reference to FIGS. 1-6, one Embodiment which actualized the switch apparatus of this invention as a switch apparatus of the 2 pole switch which switches on / off of loads, such as a lighting fixture, is described. The switch device A of the present embodiment is a relatively high current switch device having a rated current of 20 (A).

First, the overall configuration of the switch device A will be described with reference to FIG.
As shown in FIG. 1, the switch device A includes a switch main body 1 constituting an outer frame of the switch device A and a plurality of terminals that are housed in the switch main body 1 and that are electrically connected to an electric wire. The terminal part 2 which consists of this, and the opening-and-closing part 3 which switches the electrical continuity between the terminals of the terminal part 2, and interruption | blocking are comprised.

  The switch body 1 is provided with a body 10 that houses each terminal of the terminal portion 2 and a part of the opening / closing portion 3, and a cover 20 that is attached to the body 10 and covers each terminal from one side. The body 10 is molded by injection molding a resin material having a higher thermal conductivity than air. The cover 20 is formed by injection molding a resin material. In this embodiment, urea resin is used as the material of the body 10.

  The terminal portion 2 includes a pair of contact terminals 30 and a pair of terminal plates 40 into which electric wires are inserted and electrically connected, and four locks attached to each of the contact terminals 30 and each of the terminal plates 40. A spring 50 and a release button 60 for releasing the connection between the electric wire and the contact terminal 30 and the terminal plate 40 are provided. Each of the contact terminal 30 and the terminal plate 40 is integrally formed by pressing a copper plate.

  The opening / closing part 3 is provided with a pair of opening / closing elements 70 that are in contact with each of the terminal plates 40 and switch between a state of contact with the contact terminals 30 and a state of being separated from the contact terminals 30. The opening / closing element 70 is formed by pressing a metal plate. A handle 80 for switching between a contact state and a separation state with respect to each contact terminal 30 of the switch element 70 is attached to the switch element 70 via a pair of coil springs 120 (see FIG. 2). The coil spring 120 is disposed in a compressed state between the handle 80 and the opening / closing element 70. The handle 80 is operated by an operation button 90 attached to the cover 20. A return spring 100 and a slide cam 110 are disposed between the handle 80 and the operation button 90.

  Hereinafter, the direction in which each contact terminal 30 and each terminal plate 40 is inserted into the body 10 is referred to as “insertion direction”, the body 10 side in the insertion direction is referred to as “downward”, and the cover 20 side is referred to as “upward”. Further, the direction in which each contact terminal 30 or each terminal plate 40 is arranged in the body 10 is referred to as a “width direction”, and the direction in which the contact terminal 30 and the terminal plate 40 are arranged in the body 10 is “a length direction”. The side on which the terminal board 40 is arranged is “front”, and the side on which the contact terminal 30 is arranged is “rear”.

Next, a configuration in a state where the switch device A is assembled will be described with reference to FIG.
By fitting the body 10 and the cover 20 to each other, a sealed internal space is provided in the switch body 1. Thereby, the terminal part 2 and the opening / closing element 70 come to be arrange | positioned in this internal space. The specific arrangement mode is as follows.

  The body 10 is a box that is provided with a peripheral wall portion 11 and a bottom wall portion 12 that constitute an outer frame, and that opens upward in the insertion direction. In this body 10, the contact terminal storage part 14 and the terminal board storage part 15 are provided in parallel in the length direction. Between the contact terminal storage part 14 and the terminal plate storage part 15, a switching element storage part 16 in which the switching element 70 is disposed is provided.

  In the contact terminal storage portion 14, a release button 60, a lock spring 50, and a contact terminal 30 are stored in order from the lower side to the upper side in the insertion direction. In the terminal plate storage portion 15, a release button 60, a lock spring 50, and a terminal plate 40 are stored in order from the lower side to the upper side in the insertion direction.

  A part of the terminal plate 40, the opening / closing element 70, the coil spring 120, and the handle 80 are stored in the opening / closing element storage portion 16 in order from the lower side to the upper side in the insertion direction. Specifically, the coil spring 120 is housed in a substantially cylindrical housing hole provided in the handle 80 in such a manner that a part of the lower portion in the insertion direction protrudes. The lower end of the coil spring 120 in the insertion direction and the opening / closing element 70 are in contact with each other.

  The cover 20 is provided with a button storage portion 21 that is a rectangular hole that opens upward in the insertion direction. In the button storage portion 21, an upper portion of the handle 80, a return spring 100, a slide cam 110, and an operation button 90 are stored in order from the lower side to the upper side in the insertion direction.

  Next, an aspect of electrical conduction between the contact terminal 30 and the terminal plate 40 by the operation of the operation button 90 in the switch device A will be described. 2A shows a state (OFF state) in which each contact terminal 30 and each terminal plate 40 are both electrically disconnected, and FIG. 2B shows each contact terminal 30 and each terminal plate 40. Are electrically conductive (ON state).

  As shown in FIG. 2 (a), the handle 80 is arranged in such a manner as to incline forward in the length direction as it goes downward in the insertion direction. Therefore, the coil spring 120 attached to the handle 80 is also arranged in a manner that inclines forward in the length direction as it goes downward in the insertion direction. Thereby, the upper end part of the switching element 70 which contacts the coil spring 120 comes to be provided in a mode in which the upper end part is in front of the contact position with the terminal plate 40 which is the lower end part. Therefore, the switching element 70 and the contact terminal 30 are separated from each other, and the contact terminal 30 and the terminal plate 40 are electrically disconnected from each other.

  On the other hand, as shown in FIG. 2B, when the operation button 90 is pushed downward in the insertion direction from the state of FIG. 2A, the return spring 100 is moved by the downward movement of the operation button 90 in the insertion direction. The handle 80 is urged to rotate. As a result, the handle 80 is inclined backward in the length direction as it goes downward in the insertion direction. As the handle 80 rotates, the coil spring 120 also inclines backward in the length direction as it goes downward in the insertion direction. As a result, the upper end of the opening / closing element 70 in the insertion direction rotates rearward in the length direction and comes into contact with the contact terminal 30. Therefore, the contact terminal 30 and the terminal plate 40 are in a state of being electrically connected to each other.

Next, the details of the shape of the contact terminal 30 will be described with reference to FIG.
As shown in FIG. 3A, a lock spring contact portion 31 extending along the insertion direction and the width direction is provided in front of the contact terminal 30 in the insertion direction. The lock spring contact portion 31 is formed with a lock spring contact surface 31a against which the lock spring 50 (see FIG. 1) abuts. An electric wire contact portion 32 extending along the insertion direction and the width direction is provided at a position behind the lock spring contact portion 31 in the longitudinal direction and at a predetermined interval. The electric wire contact portion 32 is formed with an electric wire contact surface 32a against which the electric wire comes into contact. The lock spring contact portion 31 and the wire contact portion 32 are arranged in a manner of facing each other in the length direction. Specifically, the lock spring contact surface 31a and the wire contact surface 32a are disposed so as to face each other in the length direction. Further, between the length direction of the lock spring contact portion 31 and the wire contact portion 32, a connection portion 33 that connects the lock spring contact portion 31 and the wire contact portion 32 to each other and extends along the insertion direction is provided. ing. The lock spring contact portion 31, the wire contact portion 32, and the connecting portion 33 are formed in a substantially U shape in a top view (see FIG. 3B).

  The lock spring contact portion 31 is provided with a lock spring restricting portion 34 that bends in the direction along the length direction from the upper end portion in the insertion direction and restricts the upward movement of the lock spring 50 in the insertion direction. Yes. The length T1 of the lock spring restricting portion 34 in the length direction is formed to be smaller than a length T2 connecting the lock spring contact portion 31 and the wire contact portion 32 along the length direction.

  The wire contact portion 32 is provided with a wire restriction portion 35 that bends so as to extend in the insertion direction from a portion opposite to the connection portion 33 in the width direction and restricts the movement of the wire in the width direction. . The length T3 in the length direction of the electric wire regulating portion 35 is formed to be smaller than the length T2 between the lock spring contact portion 31 and the electric wire contact portion 32.

  A contact connecting portion 36 is provided at the front of the connecting portion 33 in the front-rear direction and at the lower end in the insertion direction. The contact connecting portion 36 is formed so as to extend along the insertion direction and to extend forward in the front-rear direction. The contact connecting part 36 is located at the same position as the connecting part 33 in the width direction. Specifically, an outer surface 33d that is opposite to the inner surface 33c where the lock spring contact portion 31 and the wire contact portion 32 are provided in the connecting portion 33, and the lock spring contact portion 31 and The inner surface 36a provided with the wire contact portion 32 is formed flush with the outer surface 36b opposite to the width direction. The contact connecting portion 36 is provided below the lock spring contact portion 31 in the insertion direction. In other words, the contact connecting portion 36 and the lock spring contact portion 31 are formed so as not to overlap each other in the length direction.

  An opening / closing element contact portion 37 for contacting the opening / closing element 70 (see FIG. 1) is provided at the front end of the contact connecting portion 36 in the front-rear direction. Specifically, as shown in FIG. 3B, the switching element contact portion 37 is bent and extends in the width direction from the front end in the front-rear direction of the contact connecting portion 36, and is shown in FIG. Thus, it is provided so as to incline toward the front in the front-rear direction as it goes downward in the insertion direction.

  A length L3 along the insertion direction of the connecting portion 33 is formed to be substantially equal to the lengths L1 and L2 of the lock spring contact portion 31 and the wire contact portion 32. Specifically, the lower end surface 33 a in the insertion direction of the connecting portion 33 is provided at a position substantially equal to the lower end surface 31 b in the insertion direction of the lock spring contact portion 31 and the lower end surface 32 b in the insertion direction of the wire contact portion 32. . On the other hand, the upper surface 33b of the connecting portion 33 in the insertion direction is slightly lower than the lock spring restricting portion 34 in the insertion direction and slightly lower than the upper end surface 32c of the electric wire contact portion 32 in the insertion direction. It is provided in the position.

  Moreover, the width H1 of the site | part along the width direction in the lock spring contact part 31 and the width H2 of the site | part along the width direction in the electric wire contact part 32 are mutually formed substantially equal (refer FIG.3 (b)). Further, the width H3 (see FIG. 3C) of the opening / closing element contact portion 37 is formed to be substantially equal to the width H1 of the lock spring contact portion 31 and the width H2 of the wire contact portion 32.

  Further, as shown in FIG. 3C, the opening / closing element contact portion 37 is provided with an insertion portion 37a which is a through hole along the plate thickness direction. Then, a substantially cylindrical contact member 38 (see FIG. 2) that comes into contact with the opening / closing element 70 is inserted into the insertion portion 37a. The contact member 38 is fixed to the insertion portion 37a by welding, for example.

Next, the details of the shape of the terminal board 40 will be described with reference to FIG.
As shown in FIG. 4A, a lock spring contact portion 41 extending along the insertion direction and the width direction is provided behind the terminal plate 40 in the insertion direction. The lock spring contact portion 41 is formed with a lock spring contact surface 41a against which the lock spring 50 (see FIG. 1) abuts. An electric wire contact portion 42 extending along the insertion direction and the width direction is provided at a position with a predetermined distance toward the front in the length direction with respect to the lock spring contact portion 41. The electric wire contact portion 42 is formed with an electric wire contact surface 42a against which the electric wire comes into contact. The lock spring contact portion 41 and the wire contact portion 42 are arranged in a manner facing each other in the length direction. Specifically, the lock spring contact surface 41a and the wire contact surface 42a are arranged to face each other in the length direction. Further, in the length direction of the lock spring contact portion 41 and the wire contact portion 42, a connection portion 43 that connects the lock spring contact portion 41 and the wire contact portion 42 to each other and extends in the insertion direction is provided. Yes. The lock spring contact portion 41, the wire contact portion 42, and the connecting portion 43 are formed in a substantially U shape in a top view (see FIG. 4B).

  The lock spring contact portion 41 is provided with a lock spring restricting portion 44 that bends forward in the length direction from the upper end portion in the insertion direction and restricts the upward movement of the lock spring 50 in the insertion direction. The length T4 of the lock spring restricting portion 44 in the length direction is formed to be smaller than a length T5 connecting the lock spring contact portion 41 and the wire contact portion 42 along the length direction.

  The lock spring contact portion 41 extends further downward in the insertion direction than the wire contact portion 42 and the connecting portion 33. At the lower end of the lock spring contact portion 41 in the insertion direction, an opening / closing element contact portion 47 is provided that extends from the lower end toward the rear in the length direction and contacts the opening / closing element 70 (see FIG. 1).

  The wire contact portion 42 is provided with a wire restricting portion 45 that bends so as to extend in the insertion direction from a portion opposite to the connecting portion 43 in the width direction and restricts the movement of the wire in the width direction. . The length T6 in the length direction of the electric wire regulating portion 45 is formed to be smaller than the length T5 between the lock spring contact portion 41 and the electric wire contact portion 42.

  A length L5 along the insertion direction of the connecting portion 43 is formed to be substantially equal to the same length L4 of the wire contact portion. Specifically, the lower end surface 43 a in the insertion direction of the connecting portion 43 is provided at a position substantially equal to the lower end surface 42 b in the insertion direction of the wire contact portion 42. On the other hand, the upper surface 43b in the insertion direction of the connecting portion 43 is provided at a position slightly below the upper end surface 42c in the insertion direction of the wire contact portion 42 in the insertion direction.

  Further, the widths H4 and H5 of the portions along the width direction in the lock spring contact portion 41 and the wire contact portion 42 are formed substantially equal to each other (see FIG. 4B). Specifically, the width H4 of the lock spring contact portion 41 is slightly larger than the width H5 of the wire contact portion 42.

Next, the details of the shape of the body 10 will be described with reference to FIG.
As shown in FIG. 5A, the body 10 is provided with a partition wall portion 13 that is located at the center in the width direction and extends along the length direction. The partition wall portion 13 provides two contact terminal storage portions 14, a terminal plate storage portion 15, and an opening / closing element storage portion 16 in the width direction. In addition, a connection storage portion 17 is provided between the contact terminal storage portion 14 and the switching element storage portion 16 in the length direction. Similarly to the contact terminal storage part 14, the terminal plate storage part 15, and the opening / closing element storage part 16, the two connection storage parts 17 are also provided in the width direction.

  The opening / closing element storage portion 16 is formed below the contact terminal storage portion 14 and the terminal plate storage portion 15 in the insertion direction (see FIG. 5B). The connection storage portion 17 communicates with the contact terminal storage portion 14 and the switching element storage portion 16, and the contact connection portion 36 (see FIG. 3) of the contact terminal 30 is stored therein. The connection storage portion 17 is formed below the contact terminal storage portion 14 in the insertion direction.

  The peripheral wall portion 11 is constituted by a pair of first peripheral wall portions 11a extending along the length direction and a pair of second peripheral wall portions 11b extending along the width direction, and the length direction is viewed in a top view. It is formed in a substantially rectangular shape having a length. The inner surface 11c of each first peripheral wall portion 11a includes a first inner surface 11c1 provided on both sides in the length direction and a second inner surface 11c2 provided between the length directions of the first inner surface 11c1. A width D2 that is a distance connecting the second inner surfaces 11c2 facing each other in the width direction is formed to be larger than a width D1 that is a distance connecting the first inner surfaces 11c1 facing each other in the width direction. ing.

  As shown in FIG. 5B, the bottom wall portion 12 includes a first bottom wall portion 12a provided in a manner of being separated from each other on both sides in the length direction, and the length direction of the first bottom wall portion 12a. It is comprised by the 2nd bottom wall part 12b of the concave shape which is provided in the middle and is dented below in the insertion direction. These 1st bottom wall parts 12a are provided in the place corresponding to the 1st inner surface 11c1 of the 1st peripheral wall part 11a, and a length direction. The second bottom wall portion 12b is provided at a position corresponding to the second inner surface 11c2 of the first peripheral wall portion 11a in the length direction.

  Further, in the first bottom wall portion 12a, the contact terminal storage portions 14 and the terminal plate storage portions 15 respectively correspond to the contact terminal storage portions 14 and the terminal plate storage portions 15 along the insertion directions of the contact terminal storage portions 14 and the terminal plate storage portions 15, respectively. An electric wire insertion portion 12a1 that is a through hole communicating with each other is provided. The electric wires are inserted into the contact terminal storage portions 14 and the terminal plate storage portions 15 through the electric wire insertion portions 12a1.

  Each contact terminal accommodating portion 14 is partitioned by the first inner surface 11 c 1 and the second peripheral wall portion 11 b of the first peripheral wall portion 11 a in the peripheral wall portion 11, the first bottom wall portion 12 a in the bottom wall portion 12, and the partition wall portion 13. Has been.

  Of the peripheral wall portion 11 constituting the contact terminal accommodating portion 14, the first contact wall for the wire contact portion 32 of the contact terminal 30 to contact the connecting portion of the first peripheral wall portion 11a and the second peripheral wall portion 11b. A portion 11d is provided. Further, of the bottom wall portion 12 constituting the contact terminal housing portion 14, the front end portion in the length direction of the first bottom wall portion 12 a protrudes upward in the insertion direction and contacts the wire contact portion 32. The 2nd contact wall part 12c for doing is provided.

  Similarly, each terminal plate storage portion 15 includes a first inner surface 11 c 1 and a second peripheral wall portion 11 b of the first peripheral wall portion 11 a in the peripheral wall portion 11, a first bottom wall portion 12 a in the bottom wall portion 12, and a partition wall portion 13. A compartment is formed.

  Of the peripheral wall portion 11 constituting the terminal plate storage portion 15, a third contact wall for the wire contact portion 42 of the terminal plate 40 to contact the connecting portion of the first peripheral wall portion 11a and the second peripheral wall portion 11b. A portion 11e is provided.

Each open / close element housing portion 16 is defined by the second inner surface 11 c 2 of the first peripheral wall portion 11 a in the peripheral wall portion 11, the second bottom wall portion 12 b in the bottom wall portion 12, and the partition wall portion 13.
Each connecting and storing part 17 is formed by the first inner surface 11 c 1 of the first peripheral wall part 11 a and the partition part 13 in the peripheral wall part 11.

Next, a mode in which the contact terminals 30 and the terminal plate 40 are inserted into the body 10 will be described with reference to FIGS.
As shown in FIG. 6, each contact terminal storage portion 14 stores a lock spring contact portion 31, an electric wire contact portion 32, and a connection portion 33 in each contact terminal 30. Each connection storage portion 17 stores a contact connection portion 36 in each contact terminal 30. In addition, each terminal plate storage portion 15 stores a wire contact portion 42 and a connection portion 43 in each terminal plate 40.

  Each open / close element storage portion 16 stores a lock spring contact portion 41 and an open / close element contact portion 47 in each terminal plate 40. The switching element contact portion 37 of the contact terminal 30 is housed above the switching element contact portion 47 in the insertion direction at a predetermined interval in the insertion direction (see FIG. 7).

  As shown in FIG. 7, in a state where the contact terminal 30 is stored in the contact terminal storage portion 14, the first inner surface 11 c 1 of the first peripheral wall portion 11 a slightly protrudes upward in the insertion direction from the connecting portion 33 of the contact terminal 30. ing. Further, in a state where the terminal plate 40 is stored in the terminal plate storage portion 15, the first inner surface 11 c 1 protrudes slightly upward in the insertion direction from the connecting portion 43 of the terminal plate 40.

The contact mode between the contact terminal 30 and the body 10 is as follows.
That is, as shown in FIGS. 6 and 7, the front surface 31c, which is the front surface in the length direction of the lock spring contact portion 31 of the contact terminal 30, is in surface contact with the first contact wall portion 11d. A rear surface 32d, which is a rear surface in the length direction of the wire contact portion 32, is in surface contact with the second contact wall portion 12c. The rear surface 32d is in surface contact with the third contact wall portion 11e over the entire length in the width direction (see FIG. 6). Only the lower part of the rear surface 32d in the insertion direction is in surface contact with the second contact wall portion 12c (see FIG. 7B).

  The connecting portion 33 is in contact with the first inner surface 11c1 of the first peripheral wall portion 11a over the entire length in the length direction. And the connection part 33 is contacting the 1st inner surface 11c1 over the full length of the insertion direction (refer Fig.7 (a)). As described above, the connecting portion 33 comes into contact with the first inner surface 11c1 over the entire surface thereof.

  Further, the contact connecting portion 36 is in contact with the first inner surface 11c1 at a part in the length direction. A part of the contact connecting portion 36 in the length direction is in contact with the first inner surface 11c1 over the entire length in the insertion direction (see FIG. 7A).

The contact mode between the terminal board 40 and the body 10 is as follows.
That is, as shown in FIGS. 6 and 7, the front surface 42 d that is the front surface in the length direction of the wire contact portion 42 of the terminal plate 40 extends from the third contact wall portion 11 e to the lower end portion in the insertion direction. Surface contact. The front surface 42d is in contact with the third contact wall portion 11e over the entire length in the width direction.

  Moreover, the connection part 43 is contacting the 1st inner surface 11c1 of the 1st surrounding wall part 11a over the full length of the length direction. And the connection part 43 is contacting the 1st inner surface 11c1 over the full length of the insertion direction. As described above, the connecting portion 43 is in contact with the first inner surface 11c1 over the entire surface thereof.

  Further, the lower contact surface 41b below the lock spring 50 on the lock spring contact surface 41a of the lock spring contact portion 41 in the insertion direction is in surface contact with the second bottom wall portion 12b over the entire surface in the width direction and the insertion direction. .

  Further, the opening / closing element contact portion 47 is in contact with the bottom surface 12b1 of the second bottom wall portion 12b over the entire length in the length direction (see FIG. 7B). The switching element contact portion 47 is in contact with the bottom surface 12b1 over the entire length in the width direction (see FIG. 6). As described above, the opening / closing element contact portion 47 is in contact with the bottom surface 12b1 over the entire surface thereof.

  Next, a difference in configuration between the switch device A of the present embodiment and the switch device of the comparative example will be described with reference to FIGS. The physique of the switch device 200 is substantially the same as that of the switch device A. The switch device 200 is a switch device having a rated current of 15 (A).

First, the configuration of a conventional switch device 200 as a comparative example will be described with reference to FIGS. 8 and 9.
As shown in FIG. 8, in the switch device 200, the contact terminal 220 and the terminal plate 230 are stored in the contact terminal storage portion 211 and the terminal plate storage portion 212 provided in the body 210. In addition, an opening / closing element storage portion 213 for storing an opening / closing element is provided between the contact terminal storage portion 211 and the terminal plate storage portion 212 in the body 210.

  The contact terminal 220 is provided with a lock spring contact portion 221 and a wire contact portion 222 so as to face each other in the length direction. The contact terminal 220 is provided with a connecting portion 223 that connects the lock spring contact portion 221 and the wire contact portion 222 to each other. This connection part 223 is provided in the aspect which connects the upper end part of the insertion direction of the lock spring contact part 221 and the upper end part of the insertion direction of the electric wire contact part 222 mutually (refer FIG. 9).

  The lock spring contact portion 221 is provided with an inclined portion 224 that is continuous from the lower end portion in the insertion direction and is inclined downward in the insertion direction and backward in the length direction. The inclined portion 224 is provided with an opening / closing element contact portion 225 that is continuous from the lower end portion in the insertion direction and contacts the opening / closing element.

  The terminal plate 230 is provided with a lock spring contact portion 231 and a wire contact portion 232 so as to face each other in the length direction. The terminal plate 230 is provided with a connecting portion 233 that connects the lock spring contact portion 231 and the wire contact portion 232 to each other. This connection part 233 is provided in the aspect which connects the upper end part of the insertion direction of the lock spring contact part 231 and the upper end part of the insertion direction of the electric wire contact part 232 mutually.

  The lock spring contact portion 231 extends further downward in the insertion direction than the wire contact portion 232. An opening / closing element contact portion 234 that extends forward in the length direction and contacts the opening / closing element is provided at the lower end of the lock spring contact portion 231 in the insertion direction.

Here, the contact mode between the contact terminal 220 and the terminal plate 230 and the body 210 is as follows.
That is, the contact terminal 220 and the body 210 are formed in the length direction of the lock spring contact portion 221 inserted into the recess 215 provided in the peripheral wall portion of the body 210, the wire contact portion 222, and the contact terminal storage portion 211. Are in contact with each other by a rear peripheral wall portion 216 (see FIG. 9). Further, the connecting portion 223 is not in contact with the body 210.

  On the other hand, the terminal plate 230 and the body 210 are in contact with each other by the electric wire contact portion 232 and the front peripheral wall portion 217 at the front in the length direction constituting the terminal plate storage portion 212. Further, the connecting portion 233 is not in contact with the body 210.

  With the above configuration, the contact terminals 220, the terminal plate 230, and the body 210 have a small contact area between the contact terminals 220, the terminal plate 230, and the body 210 because the connecting portions 223, 233 are not in contact with each other.

  Further, the contact portion between the contact terminal 220 and the body 210 is only a part in the width direction of the lock spring contact portion 221 and has a small contact area. The same applies to the contact portion between the terminal plate 230 and the body 210.

  In these respects, in this embodiment, as shown in FIGS. 6 and 7, the wire contact portion 32 of the contact terminal 30 and the first contact wall portion 11 d are in surface contact, and the wire contact portion 42 of the terminal plate 40 When the second contact wall portion 11e is in surface contact, the connecting portion 33 and the connecting portion 43 are in surface contact with the first inner surface 11c1 of the first peripheral wall portion 11a of the body 10. As a result, the contact area between the lock spring contact portion and the body is larger than that of the conventional switch device 200. Therefore, the contact area between the lock spring contact portion and the body is larger than that of the conventional switch device 200.

  As described above, the switch device A of the present embodiment has a larger contact area between the contact terminal and the body and a contact area between the terminal plate and the body than the conventional switch device 200.

  By the way, in the conventional switch apparatus 200, since the contact area of the contact terminal 220 and the body 210 and the contact area of the terminal board 230 and the body 210 are small, the heat | fever resulting from the electrical resistance in the contact terminal 220 and the terminal board 230 is generated. There has been a problem of being trapped inside the switch device 200.

  In that respect, in this embodiment, since the contact area is larger than that of the conventional switch device 200 after using a resin material having higher thermal conductivity than air for the body 10, the contact terminal 30 and the terminal plate 40 Heat caused by the electrical resistance is released to the outside of the switch device A through the body 10. As a result, the problem that the heat is trapped inside the switch device A is suppressed.

According to the switch device A of the present embodiment, the following effects can be obtained.
(1) According to the present embodiment, the body 10 of the switch body 1 is provided with the peripheral wall 11 that is formed of a resin material having a higher thermal conductivity than air and that constitutes the outer frame of the body 10. The connecting portion 33 of the contact terminal 30 is in surface contact with the first inner surface 11c1 of the first peripheral wall portion 11a of the peripheral wall portion 11. Thereby, the heat resulting from the electrical resistance of the contact terminal 30 is transferred to the peripheral wall portion 11. Then, the heat transferred to the peripheral wall portion 11 is radiated to the outside of the switch device A. Accordingly, it is possible to suppress the generation of excessive heat in the switch body 1 by the heat of the contact terminals 30 being trapped inside the switch body 1.

  In addition, the connecting portion 43 of the terminal plate 40 is in surface contact with the first inner surface 11 c 1 of the first peripheral wall portion 11 a of the peripheral wall portion 11. Thereby, the heat resulting from the electrical resistance of the terminal plate 40 is transferred to the peripheral wall portion 11. Then, the heat transferred to the peripheral wall portion 11 is radiated to the outside of the switch device A. Accordingly, the same effect as described above can be obtained. As described above, the connecting portion 33 of the contact terminal 30 and the connecting portion 43 of the terminal plate 40 are in surface contact with the first inner surface 11c1, respectively. Compared with the structure in which only one of them is in surface contact with the first inner surface 11c1, the effect of heat dissipation through the peripheral wall portion 11 as the entire switch device A can be improved.

  In addition, since the connecting portion 33 is in surface contact with the first peripheral wall portion 11a and the heat of the contact terminal 30 is transferred to the body 10, a dedicated member for transferring heat to the body 10 to the contact terminal 30 or Providing each shape can be omitted. Therefore, the shape of the contact terminal 30 can be simplified. As a result, the cost of the contact terminal 30 can be reduced, and the cost of the switch device A can be reduced. Moreover, since the connection part 43 is also the structure which carries out surface contact with the 1st surrounding wall part 11a similarly, and heat-transfers the heat | fever of the terminal board 40 to the body 10, it becomes possible to acquire the effect similar to the above-mentioned.

  Moreover, since the 1st surrounding wall part 11a of the surrounding wall part 11 carries out surface contact with the connection part 33, it becomes possible to abbreviate | omit forming the shape for exclusive use for surface contact with the connection part 33 in the body 10. FIG. Therefore, the shape of the body 10 can be simplified, and the cost of the switch device A can be reduced.

  (2) According to the present embodiment, the length L3 in the insertion direction of the connecting portion 33 of the contact terminal 30 and the length L2 in the insertion direction of the wire contact portion 32 are formed substantially the same. Therefore, compared with the structure where the connection part 33 is larger than the electric wire contact part 32, suppression of the enlargement of the physique of the switch main-body part 1 can be aimed at. Moreover, compared with the structure where the connection part 33 is smaller than the electric wire contact part 32, the increase in the heat_generation | fever resulting from the increase in electrical resistance can be suppressed. As described above, according to the configuration of the present embodiment, it is possible to achieve both suppression of an increase in size of the switch body 1 and suppression of an increase in heat generated due to an increase in electrical resistance.

  In addition, the length L5 in the insertion direction of the connecting portion 43 of the terminal plate 40 and the length L4 in the insertion direction of the wire contact portion 42 are formed substantially the same. Accordingly, the same effect as described above can be obtained.

  (3) According to the present embodiment, the connecting portion 33 of the contact terminal 30 is in contact with the first inner surface 11c1 over the entire surface. Therefore, heat transfer from the connecting portion 33 to the peripheral wall portion 11 can be performed more efficiently. As a result, the heat of the contact terminal 30 can be radiated more efficiently to the outside of the switch device A. Moreover, the connection part 43 of the terminal board 40 is contacting the 1st inner surface 11c1 over the whole surface. Accordingly, the same effect as described above can be obtained.

  (4) According to the present embodiment, the contact connecting portion 36 of the contact terminal 30 is in surface contact with the first inner surface 11 c 1 of the first peripheral wall portion 11 a of the peripheral wall portion 11. Thereby, the heat resulting from the electrical resistance of the contact connecting portion 36 is transferred to the peripheral wall portion 11 and radiated from the peripheral wall portion 11 to the outside of the switch device A. Thereby, since the contact area of the contact terminal 30 and the 1st inner surface 11c1 further increases, the heat of the contact terminal 30 can be efficiently transmitted by the surrounding wall part 11. FIG.

  (5) According to this embodiment, the contact terminal 30 is provided with the lock spring restricting portion 34. Therefore, the number of parts of the entire switch device A can be reduced as compared with the case where the contact terminal 30 and the lock spring restricting portion 34 are configured as separate members. The terminal plate 40 is provided with a lock spring restricting portion 44. Accordingly, the same effect as described above can be obtained.

  Further, the contact terminal 30 is provided with an electric wire restricting portion 35. Therefore, the number of parts of the entire switch device A can be reduced as compared with the case where the contact terminal 30 and the wire restricting portion 35 are configured as separate members. Further, the terminal plate 40 is provided with an electric wire restricting portion 45. Accordingly, the same effect as described above can be obtained.

  (6) According to the present embodiment, the switching element contact portion 47 of the terminal board 40 is in contact with the bottom surface 12b1 of the second bottom wall portion 12b of the bottom wall portion 12 over the entire surface thereof. Thereby, the heat resulting from the electrical resistance of the switching element contact portion 47 is transferred to the second bottom wall portion 12b and radiated from the second bottom wall portion 12b to the outside of the switch device A. Thereby, since the contact area of the terminal board 40 and the body 10 increases, the heat of the terminal board 40 can be efficiently transmitted to the body 10.

  (7) According to the present embodiment, the second contact wall portion 12 c is in contact with the entire length in the width direction of the front surface 31 c of the lock spring contact portion 31 of the contact terminal 30. Thereby, compared with the structure which contacts similarly in an insertion direction, and only a part of the width direction of the front surface 31c of the lock spring contact part 31 contacts the 2nd contact wall part 12c, the lock spring contact part 31 of FIG. Heat can be transferred to the second contact wall portion 12c.

  (8) According to this embodiment, in the lock spring contact surface 41a of the lock spring contact portion 41 of the terminal plate 40, the lower portion of the insertion direction with respect to the lock spring 50 has a width direction and a total length in the insertion direction. It is in contact with the second bottom wall portion 12b. Thereby, compared with the structure where the lock spring contact surface 41a and the second bottom wall portion 12b are separated from each other, the contact area between the lock spring contact surface 41a and the body 10 is increased, so that the heat of the lock spring contact portion 41 is reduced. Heat can be transferred to the body 10.

  (9) According to this embodiment, the plate thickness of the contact terminal 30 is formed to be thicker than the plate thickness of the switching element 70. Therefore, the electrical resistance of the contact terminal can be reduced as compared with a structure in which the plate thickness of the contact terminal is equal to the plate thickness of the switching element. Accordingly, it is possible to suppress the generation of heat due to the electrical resistance of the contact terminal 30 itself. Similarly, the terminal board 40 is formed to have a thickness greater than that of the switching element 70. As a result, the same effect as described above can be obtained.

  (10) According to this embodiment, the length T1 of the lock spring restricting portion 34 of the contact terminal 30 in the length direction is longer than the length T2 of the lock spring contact portion 31 and the wire contact portion 32 in the length direction. It is formed small. Thereby, the material for forming the contact terminal 30 can be reduced. Therefore, the cost of the contact terminal 30 can be reduced, and the cost of the switch device A can be reduced. Similarly, the length T4 of the lock spring restricting portion 44 in the length direction of the terminal plate 40 is formed to be smaller than the length T5 of the lock spring contact portion 41 and the wire contact portion 42 in the length direction. . As a result, the same effect as described above can be obtained.

  (11) According to the present embodiment, the length T3 in the length direction of the wire restriction portion 35 of the contact terminal 30 is smaller than the length T2 in the length direction between the lock spring contact portion 31 and the wire contact portion 32. Is formed. Thereby, the material for forming the contact terminal 30 can be reduced. Therefore, the cost of the contact terminal 30 can be reduced, and the cost of the switch device A can be reduced. Similarly, in the terminal plate 40, the length T6 of the electric wire regulating portion 45 in the length direction is formed smaller than the length T5 of the lock spring contact portion 41 and the electric wire contact portion 42 in the length direction. As a result, the same effect as described above can be obtained.

  (12) According to the present embodiment, the contact coupling portion 36 is provided below the lock spring contact portion 31 in the insertion direction. Therefore, since the contact connecting portion 36 and the lock spring contact portion 31 do not overlap each other in the length direction, both the contact connecting portion 36 and the lock spring contact portion 31 are integrally formed on the contact terminal 30 by pressing. Will be able to. As a result, an increase in the electrical resistance of the contact terminal 30 is suppressed compared to a structure in which the lock spring contact portion 31 or the contact coupling portion 36 is provided as a separate member on the contact terminal 30 and then fixed to the contact terminal 30. Will be able to. Therefore, the heat generation of the contact terminal 30 can be suppressed. In addition, the number of parts of the switch device A can be reduced and the manufacturing process of the switch device A can be reduced as compared with the structure in which the lock spring contact portion 31 or the contact connecting portion 36 is separately provided on the contact terminal 30. Therefore, the cost of the switch device A can be reduced.

  (13) In a switching device with a relatively high current of 20 A, the amount of heat generated due to the electrical resistance at the contact terminals and terminal plate is greater than that of a switching device with a rated current of 15 A. In that respect, in this embodiment, since the structure which transfers the heat of the contact terminal 30 and the terminal board 40 to the body 10 is used, the said rated current is suitable with respect to a comparatively high current switch apparatus.

(Other embodiments)
Switch device A of this embodiment is not limited to the above-mentioned embodiment, for example, the following changes are possible. Further, the following modifications are not only applied to the above-described embodiment, but can also be applied when different modifications are combined with each other.

  In this embodiment, the connection portion 33 of the contact terminal 30 and the first inner surface 11c1 of the first peripheral wall portion 11a of the peripheral wall portion 11 of the body 10 are in direct surface contact, so that the heat of the contact terminal 30 is transferred to the peripheral wall portion 11. Although it was the structure which transfers heat, the heat transfer structure to the surrounding wall part 11 of the contact terminal 30 is not limited to this. For example, a heat dissipation member may be interposed between the connecting portion 33 and the first inner surface 11c1 in the width direction. In this case, the heat dissipation member is in contact with both the connecting portion 33 and the first inner surface 11c1. As this heat radiating member, it is a material whose heat conductivity is higher than air, for example, a silicon-type heat radiating sheet can be used. According to this configuration, the heat generated in the contact terminal 30 is transferred to the heat radiating member. Then, the heat transferred to the heat radiating member is transferred to the peripheral wall portion 11 of the switch body 1 and is radiated to the outside of the switch device A. Accordingly, it is possible to suppress the generation of excessive heat in the switch body 1 by the heat of the contact terminals 30 being trapped inside the switch body 1.

  The heat dissipation member is not limited to the heat dissipation sheet, and may be heat dissipation grease. When this heat dissipation grease is used, the heat dissipation grease is filled in the width direction between the contact terminal 30 and the first inner surface 11c1, and the adhesiveness between the contact terminal 30 and the heat dissipation grease and the heat dissipation grease and the first inner surface 11c1 are set. Adhesion with will be improved. Therefore, the heat of the contact terminal 30 can be efficiently radiated to the outside of the switch device A through the peripheral wall portion 11. In addition, the effect similar to the above-mentioned effect can be acquired now by the structure which interposes a heat radiating member between the terminal board 40 and the 1st inner surface 11c1.

In the present embodiment, urea resin is used as the material constituting the body 10, but other resin materials can be used as long as the material has higher thermal conductivity than air.
In addition, the resin material (urea resin) having a high thermal conductivity may be used at least in the contact portion with the contact terminal 30 and the contact portion with the terminal plate 40 in the body 10. That is, the body 10 can be molded by, for example, two-color molding using a resin material having a higher thermal conductivity than air and a resin material having a lower thermal conductivity than air.

  In the present embodiment, the connection portion 33 of the contact terminal 30 and the connection portion 43 of the terminal plate 40 are both in surface contact with the first inner surface 11c1 of the first peripheral wall portion 11a of the peripheral wall portion 11. Only the connecting portion 33 may be in surface contact with the first inner surface 11c1. Alternatively, only the connecting portion 43 of the terminal plate 40 may be in surface contact with the first inner surface 11c1.

  -In this embodiment, although the outer surface 33d of the connection part 33 of the contact terminal 30 was formed in the plane along an insertion direction and a length direction, the surface shape of the outer surface 33d of the connection part 33 is limited to this. There is no. Other shapes may be used as long as at least a part of the outer surface 33d is in surface contact with the first inner surface 11c1. The same applies to the outer surface of the connecting portion 43 of the terminal plate 40 (that is, the surface facing the first inner surface 11c1 in the connecting portion 43 in the width direction).

  Similarly, in the first inner surface 11c1, the first inner surface 11c1 is formed in a plane along the insertion direction and the length direction, but the surface shape of the first inner surface 11c1 is not limited to this. . Any other shape may be used as long as at least a part thereof is in surface contact with the outer surface 33d of the connecting portion 33 or the outer surface of the connecting portion 43.

  -In this embodiment, although the outer surface 36b of the contact connection part 36 of the contact terminal 30 was formed in the plane along an insertion direction and a length direction, the surface shape of the outer surface 36b of the contact connection part 36 is limited to this. Never happen. Other shapes may be employed as long as at least a part of the outer surface 36b is in surface contact with the first inner surface 11c1.

  In the present embodiment, a part of the contact connecting portion 36 is in surface contact with the first inner surface 11c1, but the contact connecting portion 36 is in contact with the first inner surface 11c1 over the entire surface. You can also Thereby, the heat transfer from the contact coupling part 36 to the surrounding wall part 11 can be performed more efficiently. As a result, the heat of the contact connecting portion 36 can be radiated more efficiently to the outside of the switch device A.

  In the present embodiment, only the outer surface 33d of the connecting portion 33 is in surface contact with the first inner surface 11c1, but the contact mode between the connecting portion 33 and the peripheral wall portion 11 is not limited to this. For example, by providing a groove shape on the peripheral wall portion 11, the inner surface 33 c of the connecting portion 33 and the peripheral wall portion 11 may be in surface contact. Further, by providing a protrusion on the bottom wall portion 12, only the inner surface 33 c of the connecting portion 33 can be in surface contact. Moreover, it is not limited to the above-mentioned structure, What is necessary is just the structure which at least one of the peripheral wall part 11 and the inner surface 33c and the outer surface 33d of the connection part 33 surface-contact.

  In addition, the connecting portion 33 is not limited to the configuration in surface contact with the peripheral wall portion 11, and may be configured in surface contact with the bottom wall portion 12. Specifically, for example, by providing a groove for inserting the connecting portion 33 in the bottom wall portion 12, the groove of the bottom wall portion 12 and at least one of the outer surface 33d and the inner surface 33c of the connecting portion 33 are brought into surface contact. In short, the connecting portion 33 may be configured to be in surface contact with the inner surface of the body 10. Here, “the inner surface of the body 10” is constituted by the inner surface 11 c of the peripheral wall portion 11 of the body 10 and the upper surface of the bottom wall portion 12.

  In the present embodiment, only the outer surface 36b of the contact coupling portion 36 is in surface contact with the first inner surface 11c1, but the contact mode between the contact coupling portion 36 and the peripheral wall portion 11 is not limited to this. . For example, by providing a groove shape on the peripheral wall portion 11, the inner surface 36a of the contact connecting portion 36 and the peripheral wall portion 11 may be in surface contact. Moreover, it can also be set as the structure which surface-contacts only with the inner surface 36a of the contact connection part 36 by providing a projection part in the surrounding wall part 11. FIG. Moreover, it is not limited to the above-mentioned structure, What is necessary is just a structure which at least one of the inner surface 36a and the outer surface 36b of the surrounding wall part 11 and the contact connection part 36 contacts.

  In addition, the contact connecting portion 36 is not limited to the configuration in surface contact with the peripheral wall portion 11, and may be configured in surface contact with the bottom wall portion 12. Specifically, for example, by providing a groove for inserting the contact connecting portion 36 in the bottom wall portion 12, the groove of the bottom wall portion 12 and at least one of the outer surface 36b or the inner surface 36a of the contact connecting portion 36 are brought into surface contact. Yes. In short, the contact connecting portion 36 may be configured to be in surface contact with the inner surface of the body 10.

  In the present embodiment, the first contact wall portion 11d and the rear surface of the wire contact portion 32 are in surface contact with each other, but the first contact wall portion 11d and the rear surface of the wire contact portion 32 are not in surface contact with each other. You can also

  In the present embodiment, the second contact wall portion 12c and the front surface of the lock spring contact portion 31 are in surface contact, but the second contact wall portion 12c and the front surface of the lock spring contact portion 31 are not in surface contact. It can also be configured.

  In the present embodiment, the third contact wall portion 11e and the front surface of the wire contact portion 42 are in surface contact with each other, but the third contact wall portion 11e and the front surface of the wire contact portion 42 are not in surface contact with each other. You can also

  In the present embodiment, the switch device is a two-pole switch device, but it can also be applied to a single-pole switch and a four-pole switch device.

  DESCRIPTION OF SYMBOLS A ... Switch apparatus, 1 ... Switch main body, 2 ... Terminal part, 3 ... Opening / closing part, 10 ... Body, 11 ... Peripheral wall part, 11a ... 1st peripheral wall part, 11b ... 2nd peripheral wall part, 11c ... Inner surface, 11c1 ... 1st DESCRIPTION OF SYMBOLS 1 inner surface, 11c2 ... 2nd inner surface, 11d ... 1st contact wall part, 11e ... 2nd contact wall part, 12 ... Bottom wall part, 12a ... 1st bottom wall part, 12a1 ... Electric wire insertion part, 12b ... 2nd bottom Wall part, 12b1 ... Bottom, 12c ... Third contact wall part, 13 ... Partition part, 14 ... Contact terminal storage part, 15 ... Terminal plate storage part, 16 ... Opening / closing element storage part, 17 ... Connection storage part, 20 ... Cover , 21 ... Button storage part, 30 ... Contact terminal (first connection terminal), 31 ... Lock spring contact part, 31a ... Lock spring contact surface, 31b ... Lower end face, 31c ... Front face, 32 ... Electric wire contact part, 32a ... Electric wire Contact surface, 32b ... lower end surface, 32c ... upper end surface, 32d ... rear surface, 33 ... connecting portion 33a ... Lower end surface, 33b ... Upper surface, 33c ... Inner surface, 33d ... Outer surface, 34 ... Lock spring restricting portion, 35 ... Electric wire restricting portion, 36 ... Contact connecting portion, 36a ... Inner surface, 36b ... Outer surface, 37 ... Opening / closing element contact portion 37a ... insertion part, 38 ... contact member, 40 ... terminal plate (second connection terminal), 41 ... lock spring contact part, 41a ... lock spring contact surface, 41b ... lower contact surface, 42 ... wire contact part, 42a ... Wire contact surface, 42b ... lower end surface, 42c ... upper end surface, 42d ... front surface, 43 ... connecting portion, 43a ... lower end surface, 43b ... upper surface, 43c ... inner surface, 44 ... lock spring restricting portion, 45 ... wire restricting portion, 47 DESCRIPTION OF SYMBOLS ... Opening / closing element contact part, 50 ... Lock spring, 60 ... Release button, 70 ... Opening / closing element, 80 ... Handle, 90 ... Push button, 100 ... Return spring, 110 ... Slide cam, 120 ... Coil spring.

Claims (7)

In a switch device comprising a switch body composed of a box, a connection terminal housed in the switch body and electrically connected to an electric wire and a lock spring,
The connection terminal is connected to the wire contact portion that contacts the wire, the lock spring contact portion that faces the wire contact portion and contacts the lock spring, and the wire contact portion and the lock spring contact portion. And a connecting portion to be provided,
The switch body is provided with a body that is molded from a resin material having a higher thermal conductivity than air and that accommodates the connection terminals.
The switch device is characterized in that the connecting portion is in surface contact with the inner surface of the body. The switch device according to claim 1,
The body is provided with a peripheral wall portion constituting an outer frame,
The connecting portion is in surface contact with an inner surface of the peripheral wall portion. The switch device according to claim 2,
The switching device is configured to contact over the entire surface of the connecting portion facing the inner surface of the peripheral wall portion. In the switch apparatus as described in any one of Claims 1-3,
In the switch body, an opening / closing element that switches between an ON state and an OFF state of the switch device is arranged, and the connection terminal includes an opening / closing element contact portion that contacts the opening / closing element, and the connection of the opening / closing element contact portion and the connection A contact connecting part for connecting the parts,
The contact connecting portion is in surface contact with the inner surface of the body. The switch device according to claim 4,
The switch device is characterized in that the contact connecting portion contacts the entire surface of the contact connecting portion facing the inner surface of the peripheral wall portion. In the switch apparatus as described in any one of Claims 1-5,
The switch device, wherein the connection terminal is provided with a restricting portion that restricts movement of the lock spring in the insertion direction of the connection terminal with respect to the switch body. In a switch device comprising a switch body composed of a box, a connection terminal housed in the switch body and electrically connected to an electric wire and a lock spring,
The connection terminal is connected to the wire contact portion that contacts the wire, the lock spring contact portion that faces the wire contact portion and contacts the lock spring, and the wire contact portion and the lock spring contact portion. And a connecting portion to be provided,
The switch body is provided with a body that is molded from a resin material having a higher thermal conductivity than air and that houses the connection terminals.
Between the connecting part and the body, a heat dissipating member made of a material that contacts both the connecting part and the body and has a higher thermal conductivity than air is disposed. Switch device to do.

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