WO2019188474A1 - Switch - Google Patents

Abstract

The present disclosure addresses the problem of reducing size. A switch (100), provided with a base (11), a first terminal (21), a second terminal (22), a fixed contact piece (3), a first electronic component (61), and a second electronic component (62). The first terminal (21) has a first connecting piece (210) to which an external conductor is electrically connected, a first linking piece (211) extending from the upper end of the first connecting piece (210), and a first joining piece (213) extending from the upper end of the first linking piece (211). The second terminal (22) has a second connecting piece (220) to which a different external conductor is electrically connected, a second linking piece (221) extending from the upper end of the second connecting piece (220), and a second joining piece (223) extending from the upper end of the second linking piece (221). The first electronic component (61) connects the first joining piece (213) and the fixed contact piece (3) in the lateral direction. The second electronic component (62) connects the second joining piece (223) and the fixed contact piece (3) in the lateral direction.

Description

switch

The present disclosure relates to a switch, and more particularly to a switch including an electronic component.

Patent Document 1 discloses a switch device (switch) provided with a chip resistor (electronic component). The switch device includes an operating body, a movable contact, a switch body, and a device state detection board attached to the switch body. The movable contact moves by an operation on the operating body. The switch body has first and second terminals whose conduction state is switched as the movable contact moves. A chip resistor that is electrically connected to the first and second terminals is mounted on the substrate.

The switch device described in Patent Document 1 has a problem in that it is difficult to reduce the size as a whole because a board on which electronic components are mounted is attached to the switch body.

JP 2011-146257 A

This disclosure is intended to provide a switch that can be miniaturized.

A switch according to an aspect of the present disclosure includes a base, a first terminal, a second terminal, a fixed contact piece, a first electronic component, a second electronic component, a return spring, an operator, and an actuator. And comprising. The first terminal is attached to the base through the lower surface of the base and extends in the vertical direction. The second terminal is attached to the base so as to be aligned with the first terminal in a horizontal direction perpendicular to the vertical direction, and extends in the vertical direction. The fixed contact piece is attached through the upper surface of the base between the first terminal and the second terminal in the left-right direction of the base. The first electronic component is bonded to the first terminal and the fixed contact piece. The second electronic component is joined to the second terminal and the fixed contact piece. The return spring is positioned so that the lower end contacts the upper end of the second terminal. The operation element is supported by the base via the return spring and is movable in the vertical direction. The operating element is attached to the operating element and extends in the left-right direction. As the operation element moves, the fixed contact piece comes into contact with a movable contact provided on the operating element, thereby forming an electric circuit between the first terminal and the second terminal. The first terminal is branched from the first connecting piece to which an external conductor is electrically connected, an L-shaped first connecting piece extending upward from the upper end of the first connecting piece, and the first connecting piece. And a first branch piece projecting upward and a first joining piece extending upward from the upper end of the first connecting piece. The second terminal includes a second connecting piece to which an outer conductor different from the outer conductor is electrically connected, an inverted L-shaped second connecting piece extending upward from an upper end of the second connecting piece, A second branch piece branched from the second connecting piece and projecting upward; and a second joining piece extending upward from an upper end of the second connecting piece. The first electronic component connects the first joining piece and the fixed contact piece in the left-right direction. The second electronic component connects the second joining piece and the fixed contact piece in the left-right direction.

FIG. 1 is a front view illustrating a first terminal, a second terminal, and a fixed contact piece in a switch according to an embodiment of the present disclosure. FIG. 2 is a front view showing a state where the operating element is in the second position in the switch. FIG. 3 is a perspective view showing the switch. FIG. 4 is an exploded perspective view showing the switch. FIG. 5 is a front view showing a state where the operating element is in the first position in the switch. FIG. 6A is a circuit diagram of the above switch. FIG. 6B is an explanatory diagram of the operation of the switch described above. FIG. 7 is a partially omitted front view showing a first terminal, a second terminal, and a fixed contact piece in a switch according to a modified example of the embodiment of the present disclosure.

(1) Outline The switch with electronic parts (switch) 100 of the present embodiment is used by being connected to an external circuit such as an ECU (Electronic Control Unit). And switch 100 of this embodiment is used, for example in order to detect opening and closing of the door of a vehicle, or a bonnet. Of course, the purpose of the switch 100 is not limited, and the detection target is not limited to opening and closing of a vehicle door.

As shown in FIGS. 1 and 2, the switch 100 according to the present embodiment includes a base 11, a terminal 20 (in this embodiment, the first terminal 21 and / or the second terminal 22), and an electronic component 60 (this embodiment). The embodiment includes a first resistance element 61 and / or a second resistance element 62). The base 11 is a part of the case 1 of the switch 100.

The terminal 20 is attached to the base 11. Specifically, the terminal 20 is attached to the base 11 in a state of penetrating the base 11 along the thickness direction of the base 11. The terminal 20 forms a part of an electric circuit including a contact portion 7 (a fixed contact piece 3 and an actuator 5 described later) that opens and closes in response to movement of the operation element 4 (described later).

The electronic component 60 is a component such as a resistance element or a diode and is joined to the terminal 20. The electronic component 60 may be a component that is electrically connected to the terminal 20 by being joined to the terminal 20.

The terminal 20 has a connection piece 200, a connection piece 201, and a branch piece 202. An external conductor is electrically connected to the connection piece 200. In the present embodiment, the outer conductor is a lead wire. A lead wire is connected to the connection piece 200 by soldering. The connecting piece 201 connects the connecting piece 200 and the electronic component 60. That is, the connecting piece 201 includes a portion to which the electronic component 60 is joined. The branch piece 202 branches off from the connecting piece 201.

As described above, in this embodiment, the electronic component 60 is joined to the terminal 20. For this reason, in this embodiment, there exists an advantage that size reduction can be achieved compared with the case where the board | substrate which mounted the electronic component is attached to a case. In this embodiment, for example, when heat is applied to the connection piece 200 when an external conductor such as a lead wire is attached to the connection piece 200, part of the heat applied to the connection piece 200 escapes to the branch piece 202. For this reason, in this embodiment, compared with the case where there is no branch piece 202, there exists an advantage that heat is not easily transmitted to the electronic component 60. FIG.

(2) Configuration Hereinafter, the configuration of the switch 100 of the present embodiment will be described in detail. In the following, in FIG. 4, the direction in which the operation element 4 and the return spring 8 (described later) are arranged is a first direction (up and down direction), the operation element 4 side is viewed from the return spring 8, and the opposite is the lower direction. explain. In FIG. 4, the direction in which the first terminal 21 and the second terminal 22 are arranged is the second direction (left-right direction), the first terminal 21 side is the left side when viewed from the second terminal 22, and the opposite is the right side. Will be described. Further, in FIG. 4, a direction in which a pair of sandwiching pieces (a first sandwiching piece 51 and a second sandwiching piece 52) to be described later is arranged is a third direction (front-rear direction), and the first sandwiching piece as viewed from the second sandwiching piece 52. The description will be made assuming that the 51 side is the front and the reverse is the rear.

1 to 5 and 7 show arrows indicating these directions (up, down, left, right, front, back), but these arrows are described only for the purpose of assisting the explanation. It is only doing, not accompanied by an entity. Further, the definition of the above direction is not intended to limit the usage pattern of the switch 100 of the present embodiment.

As shown in FIGS. 1 to 4, the switch 100 according to the present embodiment includes a case 1 including a base 11 and a cover 12, a first terminal 21, a second terminal 22, a fixed contact piece 3, and an operation element 4. And an actuator 5. The switch 100 includes a first resistance element 61, a second resistance element 62, and a return spring 8 made of a coil spring. The second resistance element 62 is a resistance element different from the first resistance element 61 as a resistance element. FIG. 1 shows only the first terminal 21, the second terminal 22, the fixed contact piece 3, the first resistance element 61, and the second resistance element 62. 2 and 4 show the switch 100 with the cover 12 removed.

Hereinafter, when the first terminal 21 and the second terminal 22 are not distinguished from each other, the first terminal 21 and the second terminal 22 are referred to as “terminal 20”. Further, when the first resistance element 61 and the second resistance element 62 are not distinguished, the first resistance element 61 and the second resistance element 62 are referred to as “electronic component 60”.

Case 1 is formed of a resin material such as PBT (polybutylene terephthalate) resin. As shown in FIG. 3, the case 1 includes a box-shaped cover 12 having an opening on one surface (lower surface) and a flat rectangular parallelepiped base 11 that closes the opening of the cover 12. A circular opening 121 is provided on one surface (upper surface) of the cover 12. Through this opening 121, a part of the operation element 4 (a push button 411 described later) is exposed to the outside of the case 1.

As shown in FIG. 4, a flat rectangular parallelepiped base 111 that protrudes upward is provided on one surface (upper surface) of the base 11. At the center of one surface (upper surface) of the pedestal 111, a pair of protrusions 112 protruding upward are provided. By fitting the first end (lower end) of the return spring 8 to the pair of protrusions 112, the return spring 8 is positioned on the base 11 (see FIG. 2).

On one surface (upper surface) of the base 11, as shown in FIGS. 2 and 4, an upright portion 113 is provided that protrudes upward so as to be aligned with the pedestal 111 in the left-right direction. The upright portion 113 protrudes upward from the pedestal 111. Further, the upright portion 113 is formed in a shape that becomes a plate shape that is long in the vertical direction together with the fixed contact piece 3. In the present embodiment, the upright portion 113 is formed of a material having electrical insulation. For this reason, the standing portion 113 functions as an insulating portion that electrically insulates a pair of movable contacts 511 and 521 (described later) of the actuator 5. For this reason, hereinafter, the “standing portion 113” may be referred to as the “insulating portion 113”.

In the present embodiment, the base 11, the pedestal 111, the pair of protrusions 112, and the upright portions 113 are integrally formed as a resin molded product by insert molding.

The first terminal 21, the second terminal 22, and the fixed contact piece 3 are all formed of a metal material such as a copper alloy. Examples of the metal material include brass, phosphor bronze, tin bronze, free-cutting brass, free-cutting phosphor bronze, and the like. The metal material is preferably a material having a lower thermal conductivity than brass, such as phosphor bronze. Specifically, the thermal conductivity of brass is 120 [W / (m · K)], whereas the thermal conductivity of phosphor bronze is 60 [W / (m · K)]. In the present embodiment, the terminal 20 (the first terminal 21 and the second terminal 22) and the fixed contact piece 3 both contain phosphor bronze.

As shown in FIG. 2, the first terminal 21 and the second terminal 22 are provided so as to penetrate the base 11 along the thickness direction (vertical direction) of the base 11. In other words, the first terminal 21 and the second terminal 22 are provided so that the direction in which the first terminal 21 and the second terminal 22 penetrate the base 11 is the thickness direction of the base 11. Moreover, the 1st terminal 21 and the 2nd terminal 22 are provided along with the left-right direction. In the present embodiment, both the first terminal 21 and the second terminal 22 are integrally formed with the base 11 by insert molding. In the present embodiment, the first terminal 21 and the second terminal 22 are perforated solder terminals, but may be other terminals such as fork terminals.

As shown in FIG. 1, the first terminal 21 includes a first connection piece 210, a first connecting piece 211, a first branch piece 212, a first joining piece 213, and a first extension piece 214. is doing. The second terminal 22 includes a second connection piece 220, a second connecting piece 221, a second branch piece 222, a second joining piece 223, a second extension piece 224, and a mounting piece 225. Yes. Hereinafter, when the first connection piece 210 and the second connection piece 220 are not distinguished, the first connection piece 210 and the second connection piece 220 are also referred to as a “connection piece 200”. Moreover, when not distinguishing the 1st connection piece 211 and the 2nd connection piece 221, the 1st connection piece 211 and the 2nd connection piece 221 are also called "connection piece 201". When the first branch piece 212 and the second branch piece 222 are not distinguished from each other, the first branch piece 212 and the second branch piece 222 are also referred to as a “branch piece 202”. Furthermore, when the first extension piece 214 and the second extension piece 224 are not distinguished, the first extension piece 214 and the second extension piece 224 are also referred to as “extension pieces 203”.

The first connection piece 210 is a portion of the first terminal 21 exposed from the base 11 and is electrically connected to an external conductor. Similarly, the second connection piece 220 is a portion of the second terminal 22 exposed from the base 11, and an external conductor different from the external conductor connected to the first connection piece 210 is electrically connected thereto. . In the present embodiment, lead wires are electrically connected to the first connection piece 210 and the second connection piece 220 by soldering, respectively. As described above, the external conductor is electrically connected to each of the first connection piece 210 and the second connection piece 220, whereby each of the first terminal 21 and the second terminal 22 is connected to an external circuit or the like via the external conductor. Electrically connected.

The first joining piece 213 and the second joining piece 223 are both parts to which the electronic component 60 is electrically connected. In the present embodiment, the first electrode 621 of the second resistance element 62 is electrically connected to the first joining piece 213 by soldering. Further, the first electrode 612 of the first resistance element 61 is electrically connected to the second joint piece 223 by soldering. That is, in this embodiment, the electronic component 60 is joined to the terminal 20 by solder. In addition, although the kind of solder is not specifically limited, it is preferable that the solder has a high melting point like so-called high melting point solder.

The first connecting piece 211 is L-shaped and is a part that connects the first connecting piece 210 and the first joining piece 213. The second connecting piece 221 has an inverted L shape and is a part that connects the second connecting piece 220 and the second joining piece 223. In other words, the connecting piece 201 connects the connecting piece 200 and the electronic component 60.

The first branch piece 212 has a rectangular shape and is branched from the first connecting piece 211 located at the upper left of the first connection piece 210 and is located above the first connection piece 210. The second branch piece 222 has a rectangular shape, branches from the second connecting piece 221 located at the upper right of the second connection piece 220, and is located above the second connection piece 220. That is, the branch piece 202 is branched from the connecting piece 201.

In the present embodiment, the cross-sectional area of the first branch piece 212 when the first branch piece 212 is cut along the imaginary line Y1 is the first connection piece 211 when the first connection piece 211 is cut along the imaginary line X1. The cross-sectional area is larger. Similarly, the cross-sectional area of the second branch piece 222 when the second branch piece 222 is cut along the imaginary line Y2 is the cross-sectional area of the second connection piece 221 when the second connection piece 221 is cut along the imaginary line X2. Is bigger than. That is, the cross-sectional area of the branch piece 202 is larger than the cross-sectional area of the connection piece 201 when viewed from the portion where the branch piece 202 and the connection piece 201 are connected.

In the present embodiment, the first branch piece 212 and the second branch piece 222 are embedded in the base 11 by insert molding (see FIG. 2). That is, in this embodiment, at least a part of the branch piece 202 is buried in the base 11. Moreover, in this embodiment, although the 1st connection piece 211 and the 2nd connection piece 221 are all embedded in the base 11 by insert molding, a part is exposed from the base 11 (refer FIG. 2). That is, in the present embodiment, at least a part of the connecting piece 201 is exposed from the base 11.

The first extension piece 214 has a rectangular shape, is branched from the first joining piece 213, and is located above the first joining piece 213. The second extension piece 224 has a rectangular shape, is branched from a portion toward the first resistance element 61 via the second connecting piece 221 and the second joining piece 223, and is positioned above the second joining piece 223. That is, the terminal 20 has an extension piece 203 that further branches from the connecting piece 201.

The attachment piece 225 protrudes upward from the second extension piece 224 and is inserted between the pair of protrusions 112 of the base 11. The attachment piece 225 is electrically connected to the return spring 8 by contacting the first end (lower end) of the return spring 8 positioned by the pair of protrusions 112. That is, the second terminal 22 is electrically connected to the return spring 8.

The fixed contact piece 3 is arranged alongside the first terminal 21 along the thickness direction (vertical direction) of the base 11. The fixed contact piece 3 is configured integrally with the upright portion 113 by insert molding. The fixed contact piece 3 and the upright portion 113 are arranged in the thickness direction of the base 11 between a first position (described later) and a second position (described later) where the operating element 5 moves. The fixed contact piece 3 is electrically connected to the operating element 5 by contacting the pair of movable contacts 511 and 521 of the operating element 5.

The operation element 4 is formed of a resin material such as PBT resin, like the base 11. As shown in FIGS. 2 and 4, the operation element 4 is arranged alongside the second terminal 22 along the thickness direction (vertical direction) of the base 11. In other words, the operation element 4 is arranged close to one side (here, the right side) of the base 11 in the width direction (left-right direction).

The operation element 4 is composed of a main body 41. The main body 41 further includes a push button 411, a cylinder body 412, and a mounting base 413. The push button 411 is formed in a columnar shape and is provided at the first end (upper end) of the cylindrical body 412. The push button 411 is exposed to the outside of the case 1 (see FIG. 3), and is configured to be pushed toward the inside of the case 1 (that is, downward) when an external force is applied.

The cylinder body 412 is formed in a rectangular cylinder shape that is long in the vertical direction. The cylindrical body 412 is covered with a cylindrical cap 42. A circular opening 421 is provided on one surface (upper surface) of the cap 42. The push button 411 is exposed to the outside of the cap 42 through the opening 421.

The mounting base 413 has a box shape having an opening on one surface (lower surface), and is integrally formed on the second end (lower end) of the cylindrical body 412. A second end (upper end) of the return spring 8 is attached to the inside of the mounting base 413. That is, the operation element 4 is supported by the base 11 via the return spring 8. In addition, the actuator 5 is attached to the inside of the mounting base 413 in a state where the pair of sandwiching pieces 51 and 52 are exposed.

The operation element 4 is configured to move along the thickness direction (vertical direction) of the base 11. Specifically, the operating element 4 moves downward against the elastic force of the return spring 8 when the push button 411 is pushed in by applying an external force. When the operation element 4 moves downward, the return spring 8 is pushed and compressed by the operation element 4 and elastically deforms. Further, when an external force no longer acts on the push button 411, the operation element 4 moves upward by the elastic force of the return spring 8 and returns to the original state.

The actuator 5 is made of a metal material such as a copper alloy. As shown in FIGS. 2 and 4, the operating element 5 includes a pair of sandwiching pieces 51 and 52 and a connecting piece 53. Each of the pair of sandwich pieces 51 and 52 is formed in a plate shape that is long in the left-right direction. A first end (right end) of each of the pair of sandwiching pieces 51 and 52 is integrally formed with a flat connecting piece 53. The operating piece 5 is attached to the operating element 4 by attaching the connecting piece 53 to the inside of the mounting base 413 of the operating element 4.

Here, the connecting piece 53 is in contact with the second end (upper end) of the return spring 8 and is electrically connected to the return spring 8. Further, the return spring 8 is electrically connected to the second terminal 22 as described above. Therefore, the actuator 5 is electrically connected to the second terminal 22.

The pair of sandwiching pieces 51 and 52 are configured to bend in the front-rear direction with the first end (right end) as a fulcrum. The pair of sandwiching pieces 51 and 52 are configured such that the gap is widest at the first end (right end), and the gap is narrowed from the first to the second end (left end). A hemispherical first movable contact 511 that protrudes backward from a surface (rear surface) facing the second sandwiching piece 52 at a second end (left end) of the first sandwiching piece 51 of the pair of sandwiching pieces 51 and 52. Are integrally formed. In addition, the second end (left end) of the second sandwiching piece 52 of the pair of sandwiching pieces 51 and 52 is a semispherical second movable projecting forward from the surface (front surface) facing the first sandwiching piece 51. The contact 521 is integrally formed.

The pair of sandwiching pieces 51 and 52 sandwich the fixed contact piece 3 or the standing part 113 from both sides in the thickness direction (front-rear direction). Specifically, the pair of sandwiching pieces 51 and 52 includes the first movable contact 511 of the first sandwiching piece 51 on the front surface of the fixed contact piece 3 or the upright portion 113, and the second movable contact 521 of the second sandwiching piece 52. The fixed contact piece 3 or the standing portion 113 is brought into contact with the rear surface of the fixed contact piece 3 or the standing portion 113 to sandwich the fixed contact piece 3 or the standing portion 113.

The operating element 5 is configured to move between the first position and the second position along the thickness direction (vertical direction) of the base 11 as the operating element 4 moves. The first position is a position where the operating element 5 contacts the fixed contact piece 3. In other words, the first position is a position where the fixed contact piece 3 is sandwiched between the pair of movable contacts 511 and 521 (see FIG. 5). FIG. 5 shows the switch 100 with the cover 12 removed, similar to FIG. The second position is a position where the actuator 5 does not contact the fixed contact piece 3. In other words, the second position is a position where the upright portion (insulating portion) 113 is sandwiched between the pair of movable contacts 511 and 521.

The pair of movable contacts 511 and 521 move while rubbing between the first position and the second position while sandwiching the fixed contact piece 3 or the upright portion 113. Here, when the actuator 5 moves from the first position to the second position, if the pair of movable contacts 511 and 521 exceed the boundary between the fixed contact piece 3 and the insulating portion 113, the pair of movable contacts 511 and 521 are The state is instantly switched from the state in which the fixed contact piece 3 is sandwiched to the state in which the insulating portion 113 is sandwiched. Similarly, when the operating element 5 moves from the second position to the first position, when the operating element 5 exceeds the boundary between the fixed contact piece 3 and the insulating portion 113, the pair of movable contacts 511, 521 becomes the insulating portion 113. The state is instantly switched from the state of sandwiching the pin to the state of sandwiching the fixed contact piece 3. That is, the switch 100 of this embodiment is a so-called sliding contact method.

The first resistance element 61 and the second resistance element 62 are both chip resistors. The size of the first resistance element 61 and the second resistance element 62 is, for example, about 1.6 mm × 0.8 mm. Of course, the size of the first resistance element 61 and the second resistance element 62 is not intended to be limited, and the size of the first resistance element 61 and the second resistance element 62 depends on the amount of power (wattage) required by the switch 100. It may be changed accordingly.

As shown in FIG. 1, the first resistance element 61 has one first electrode 611 of a pair of first electrodes 611 and 612 joined to a first joining piece 311 provided on the fixed contact piece 3, and the other The first electrode 612 is joined to the second joining piece 223 of the second terminal 22. In the second resistance element 62, one second electrode 621 of the pair of second electrodes 621 and 622 is joined to the first joining piece 213 of the first terminal 21, and the other second electrode 622 is joined to the fixed contact piece 3. Are joined to a second joining piece 312 provided on the surface.

In the present embodiment, the first resistance element 61 and the second resistance element 62 are embedded in the base 11 by insert molding in a state where they are aligned in the left-right direction as shown in FIG. Specifically, in the present embodiment, after the first resistance element 61 and the second resistance element 62 are joined to the first terminal 21 and the second terminal 22, the first resistance element 61 and the second resistance element 62 are formed by insert molding. A resistance element 62 is embedded in the base 11. That is, in this embodiment, the electronic component 60 is embedded in the base 11.

(3) Circuit Here, the circuit of the switch 100 of the present embodiment will be described with reference to FIG. 6A. The contact portion 7 shown in FIG. 6A includes the fixed contact piece 3 and the actuator 5 as already described in “(1) Outline”. When the actuator 5 is in the second position (see FIG. 2), the pair of movable contacts 511 and 521 sandwich the insulating portion 113, so that the actuator 5 and the fixed contact piece 3 are not electrically connected. That is, when the actuator 5 is in the second position, the contact portion 7 is turned off. On the other hand, when the operating element 5 is in the first position (see FIG. 5), the pair of movable contacts 511 and 521 sandwich the fixed contact piece 3, so that the operating element 5 and the fixed contact piece 3 are electrically connected. That is, when the actuator 5 is in the first position, the contact portion 7 is turned on.

The circuit of the switch 100 has a first circuit C1 and a second circuit C2. The first circuit C <b> 1 is a circuit in which a current flows through the first terminal 21, the second resistance element 62, the contact portion 7, and the second terminal 22. More specifically, the first circuit C1 is a circuit in which a current flows through the first terminal 21, the second resistance element 62, the fixed contact piece 3, the actuator 5, the return spring 8, and the second terminal 22. The second circuit C <b> 2 is a circuit in which current flows through the first terminal 21, the second resistance element 62, the first resistance element 61, and the second terminal 22. More specifically, the second circuit C2 is a circuit in which a current flows through the first terminal 21, the second resistance element 62, the fixed contact piece 3, the first resistance element 61, and the second terminal 22.

The first resistance element 61 is electrically connected to the contact portion 7 in parallel. The second resistance element 62 is electrically connected to the connection point between the contact portion 7 and the first resistance element 61 and the first terminal 21. When a current flows between the first terminal 21 and the second terminal 22, if the contact portion 7 is off, a current flows through the second circuit C2, and no current flows through the first circuit C1. On the other hand, if the contact portion 7 is ON, a current substantially flows through the first circuit C1, and a current hardly flows through the second circuit C2.

(4) Operation Hereinafter, the operation of the switch 100 according to the present embodiment will be described as an example where the switch 100 is applied to detect the opening / closing of the hood of the vehicle. In the following description, it is assumed that the first terminal 21 and the second terminal 22 are electrically connected to an external circuit such as an ECU. Further, it is assumed that a constant current is supplied to the first terminal 21 so that a current flows from the first terminal 21 to the second terminal 22.

In a state where the hood of the vehicle is open, the push button 411 of the operation element 4 is in a pressed state. In this state, the operating element 4 is in the first position because the operating element 4 and the operating element 5 are moved downward by applying an external force to the push button 411. That is, in this state, the contact portion 7 is on. When the bonnet of the vehicle is closed, the push button 411 of the operation element 4 is not pushed, so that the external force acting on the push button 411 is lost. Then, the operating element 4 and the operating element 5 move upward due to the elastic force of the return spring 8, so that the operating element 5 moves to the second position. That is, in this state, the contact portion 7 is turned off. Thereafter, when the hood of the vehicle is opened, an external force is again applied to the push button 411, so that the operating element 4 and the operating element 5 move downward, and the operating element 5 moves to the first position. That is, in this state, the contact portion 7 is turned on.

Here, as shown in FIG. 6A, the voltage between the first terminal 21 and the second terminal 22 is defined as “inter-terminal voltage V0”. Further, as shown in FIG. 6B, it is assumed that the contact portion 7 is off at time “0”. At this time, if a constant current is passed between the first terminal 21 and the second terminal 22, a current flows through the second circuit C2, so that the voltage value of the inter-terminal voltage V0 is the first resistance element 61 and the second resistance. It becomes “V1” determined by the resistance value of the element 62. Thereafter, when the contact portion 7 is turned on at time “t1”, a current flows through the first circuit C1, and therefore the voltage value of the inter-terminal voltage V0 depends on the resistance value of the contact resistance of the second resistance element 62 and the contact portion 7. It becomes “V2 (<V1)”. If the wires connected to the first terminal 21 and the second terminal 22 are disconnected at the time “t2”, the current does not flow between the first terminal 21 and the second terminal 22. The voltage value of the voltage V0 cannot be detected.

That is, in the switch 100 of the present embodiment, the voltage value of the inter-terminal voltage V0 is different between the contact portion 7 being on, the contact portion 7 being off, and a disconnection occurring. Therefore, by using the switch 100 of this embodiment, it is possible to detect the on / off of the contact portion 7 and the disconnection by monitoring the voltage value of the inter-terminal voltage V0.

Also, the switch 100 of this embodiment can detect a short-circuit state of a lead wire or the like connected to the terminal 20. Specifically, when the lead wire is short-circuited, no current flows through the switch 100. Therefore, the voltage value of the inter-terminal voltage V0 is different from any of the above-described “V1”, “V2”, and undetectable. It becomes. Therefore, if the switch 100 of this embodiment is used, it is possible to detect a short-circuit state such as a lead wire connected to the terminal 20.

As described above, in the switch 100 of this embodiment, the electronic component 60 is joined to the terminal 20. For this reason, in this embodiment, there exists an advantage that size reduction can be achieved compared with the case where the board | substrate which mounted the electronic component is attached to a case.

Hereinafter, further advantages of the switch 100 of the present embodiment will be described in comparison with a switch of a comparative example. The switch of the comparative example is different from the switch 100 of this embodiment in that the terminal does not have a branch piece and an extension piece. In the switch of the comparative example, when an external conductor (here, a lead wire) is connected to the terminal connection piece by soldering, heat is applied to the connection piece by soldering. The heat applied to the connection piece is transmitted through the terminal, and is transmitted to the junction of the electronic component at the terminal and the electronic component. For this reason, in the switch of the comparative example, for example, when the electronic component is joined to the terminal by solder, the solder is melted by the heat transmitted to the joining portion, and the joining of the electronic component to the terminal may be incomplete. . Further, in the switch of the comparative example, there is a possibility that the electronic component is deteriorated, for example, when heat is transmitted to the electronic component. In particular, when the soldering to the connection piece is repeated a plurality of times, the electronic component may be deteriorated by applying heat exceeding the heat resistance of the electronic component to the electronic component.

On the other hand, in the switch 100 of the present embodiment, the heat transfer path A1 through which the heat applied to the connection piece 200 is transmitted through the terminal 20 branches into a first path A11 and a second path A12. The first path A <b> 11 is a path through which heat is transmitted from the connection piece 200 to the connection piece 201. The second path A12 is a path through which heat is transferred from the connection piece 200 to the branch piece 202. That is, in the present embodiment, the heat applied to the connection piece 200 is transmitted in the first path A11 and the second path A12. For this reason, in this embodiment, compared with the switch of a comparative example, the heat | fever transmitted to the junction part (the 1st joining piece 213 or the 2nd joining piece 223) of the electronic component 60 and the electronic component 60 becomes small. Further, in the present embodiment, heat applied to the connection piece 200 is transmitted to the branch piece 202, so that heat is transmitted to the joint portion of the electronic component 60 and the electronic component 60 as compared with the switch of the comparative example. The time required until the time can be lengthened.

That is, in this embodiment, there is an advantage that heat is not easily transmitted to the electronic component 60 as compared with the switch of the comparative example. For this reason, in this embodiment, compared with the switch of the comparative example, there is an advantage that the solder at the joint portion of the electronic component 60 is not easily melted and the joining of the electronic component 60 to the terminal 20 is unlikely to be incomplete. Moreover, in this embodiment, since heat is not easily transmitted to the electronic component 60 as compared with the switch of the comparative example, there is an advantage that the electronic component 60 is hardly deteriorated.

(5) Modifications The above-described embodiment is only one of various embodiments of the present disclosure. The above-described embodiment can be variously changed according to the design or the like as long as the object of the present disclosure can be achieved. Hereinafter, modifications of the above-described embodiment will be listed. The modifications described below can be applied in appropriate combinations.

In the above-described embodiment, the first branch piece 212 and the second branch piece 222 may have a first recess 215 and a second recess 226, respectively, as shown in FIG. The first recess 215 and the second recess 226 are long along the longitudinal direction (left-right direction) of the first branch piece 212 and the second branch piece 222, respectively (in other words, the first branch piece 212 and the second branch piece 222). The groove is long in the direction intersecting with the protruding direction and is recessed backward. In this aspect, when the first terminal 21 and the second terminal 22 are integrally formed with the base 11 by insert molding, the resin constituting the base 11 is hardened in a state of entering the first recess 215 and the second recess 226.

In this aspect, even when the first terminal 21 and the second terminal 22 are subjected to a force in the direction of pulling out from the base 11, the inner walls of the first recess 215 and the second recess 226 are part of the base 11 (entered into the recess). The first terminal 21 and the second terminal 22 are restricted from being caught by the resin. That is, in this aspect, the branch piece 202 has the hook structure 204 (the first recess 215 and the second recess 226) that is hooked on a part of the base 11. For this reason, in this aspect, there exists an advantage that the 1st terminal 21 and the 2nd terminal 22 are hard to come off from the base 11. FIG.

In the above-described embodiment, the first terminal 21 and the second terminal 22 both contain phosphor bronze, but the present invention is not limited to this. For example, at least one of the first terminal 21 and the second terminal 22 may not include phosphor bronze, and both the first terminal 21 and the second terminal 22 may not include phosphor bronze. .

In the above-described embodiment, each of the first terminal 21 and the second terminal 22 includes the first branch piece 212 and the second branch piece 222, but the present invention is not limited to this. That is, the terminal 20 may have a plurality of branch pieces 202. Similarly, each of the first terminal 21 and the second terminal 22 includes a first extension piece 214 and a second extension piece 224, but the present invention is not limited to this. That is, the terminal 20 may have a plurality of extension pieces 203.

In the above-described embodiment, the cross-sectional area of the branch piece 202 is larger than the cross-sectional area of the connection piece 201 when viewed from the portion where the branch piece 202 and the connection piece 201 are connected, but the present invention is not limited to this. For example, the cross-sectional area of the branch piece 202 may be smaller than the cross-sectional area of the connecting piece 201. That is, the terminal 20 only needs to have the branch piece 202 branched from the connecting piece 201, and the shape and size of the branch piece 202 are not particularly limited.

In the above-described embodiment, a part of the branch piece 202 is embedded in the base 11, but this is not intended to limit the present invention. For example, the entire branch piece 202 may be embedded in the base 11, or the entire branch piece 202 may be exposed from the base 11.

In the above-described embodiment, the first resistance element 61 and the second resistance element 62 are both embedded in the base 11, but the present invention is not limited to this. For example, at least one of the first resistance element 61 and the second resistance element 62 may be partially exposed from the base 11. For example, both the first resistance element 61 and the second resistance element 62 may be completely exposed from the base 11. That is, whether or not the electronic component 60 is embedded in the base 11 is arbitrary.

In the above-described embodiment, a part of the connecting piece 201 is exposed from the base 11, but the present invention is not limited to this. For example, the entire connecting piece 201 may be embedded in the base 11, or the entire connecting piece 201 may be exposed from the base 11.

In the above-described embodiment, the switch 100 is a normally open type, but may be a normally closed type. In the case of a normally closed type, the switch 100 may be configured such that, for example, the fixed contact piece 3 and the insulating portion 113 are in an opposite positional relationship.

In the above-described embodiment, the base 11 has a flat rectangular parallelepiped shape, but is not intended to limit the shape of the base 11. That is, the base 11 may have a shape other than a flat rectangular parallelepiped shape.

In the above-described embodiment, the first resistance element 61 and the second resistance element 62 are only on one side (front side) in the thickness direction (front-rear direction) of the first terminal 21, the second terminal 22, and the fixed contact piece 3. However, other configurations may be used. For example, the first resistance element 61 and the second resistance element 62 may be disposed on both sides in the thickness direction of the first terminal 21, the second terminal 22, and the fixed contact piece 3, respectively. In addition, even if the first resistance element 61 is disposed on one side in the thickness direction of the first terminal 21, the second terminal 22, and the fixed contact piece 3, and the second resistance element 62 is disposed on the other side. Good.

In the above-described embodiment, the first terminal 21 and the second terminal 22 are arranged in the longitudinal direction (left-right direction) of the base 11, but the arrangement of the first terminal 21 and the second terminal 22 is limited. Not the purpose. For example, the first terminal 21 and the second terminal 22 may be arranged in the short direction (front-rear direction) of the base 11.

In the above-described embodiment, the pair of first electrodes 611 and 612 of the first resistance element 61 and the pair of second electrodes 621 and 622 of the second resistance element 62 are both directions orthogonal to the thickness direction of the base 11. They are arranged side by side (in the left-right direction). That is, the first resistance element 61 and the second resistance element 62 are both arranged in the horizontal direction, but the arrangement of the first resistance element 61 and the second resistance element 62 is not limited. For example, the first resistance element 61 and the second resistance element 62 may both be arranged in the vertical direction or may be arranged in different directions.

The switch 100 of the above-described embodiment has a configuration capable of detecting disconnection, but whether or not to use the function of detecting disconnection is arbitrary according to the user's request.

In the switch 100 of the above-described embodiment, the insulating portion 113 is provided at a position where the fixed contact piece 3 is not sandwiched between the pair of movable contacts 511 and 521, but the insulating portion 113 may not be provided at the position. And the space | gap may be provided instead of the insulating part 113 in the said position. In this case, the actuator 5 includes a position where the fixed contact piece 3 is sandwiched between the pair of movable contacts 511, 521 and a position where the pair of movable contacts 511, 521 face each other with a gap (the fixed contact piece 3 is paired with the pair of movable contacts). It is only necessary to be configured so as to be movable between positions 511 and 521).

In the above-described embodiment, the operation element 4 and the return spring 8 are arranged close to one end (right end) side in the longitudinal direction of the base 11, but other arrangements may be employed. For example, the operation element 4 and the return spring 8 may be arranged at the center in the longitudinal direction (left-right direction) of the base 11.

In the above-described embodiment, the switch 100 includes the two terminals 20 (the first terminal 21 and the second terminal 22), but the present invention is not limited to this. For example, the switch 100 may include three or more terminals 20 or one terminal 20. Further, when the switch 100 includes a plurality of terminals 20, at least one terminal 20 may have the branch piece 202, and all the terminals 20 may not have the branch piece 202.

(6) Reference Example Hereinafter, a switch of a reference example will be described. The switch of the reference example is different from the switch 100 of the above-described embodiment in that each of the two terminals 20 (the first terminal 21 and the second terminal 22) does not have the branch piece 202 and the extension piece 203. In short, the switch of the reference example includes the base 11, the terminal 20, and the electronic component 60. The terminal 20 is attached to the base 11 and forms a part of an electric circuit including the contact portion 7 that opens and closes according to the movement of the operation element 4. The electronic component 60 is bonded to the terminal 20 in a state of being embedded in the base 11. For this reason, the switch 100 has an advantage that it can be downsized as compared with the case where the electronic component 60 is disposed outside the base 11. Further, the switch 100 has an advantage that the electronic component 60 is hardly displaced from the joint portion with the terminal 20 because the electronic component 60 is embedded in the base 11. In addition, since the electronic component 60 is embedded in the base 11, the switch 100 has an advantage that it is easy to prevent corrosion at the joint portion of the electronic component 60.

(Summary)
As described above, the switch (100) according to the first aspect includes the base (11), the terminal (20), and the electronic component (60). The terminal (20) is attached to the base (11) and forms part of an electric circuit including a contact portion (7) that opens and closes according to the movement of the operation element (4). The electronic component (60) is joined to the terminal (20). The terminal (20) includes a connection piece (200), a connection piece (201), and a branch piece (202). An external conductor is electrically connected to the connection piece (200). The connecting piece (201) connects the connecting piece (200) and the electronic component (60). The branch piece (202) branches off from the connecting piece (201).

According to this aspect, there is an advantage that downsizing can be achieved as compared with the case where the substrate on which the electronic component is mounted is attached to the case. Further, according to this aspect, for example, when heat is applied to the connection piece (200) when an external conductor such as a lead wire is attached to the connection piece (200), the heat is hardly transmitted to the electronic component (60). There is.

In the switch (100) according to the second aspect, in the first aspect, the terminal (20) contains phosphor bronze.

According to this aspect, for example, since the thermal conductivity of the terminal (20) is lower than that of the terminal (20) made of brass, there is an advantage that heat is hardly transmitted to the electronic component (60).

In the switch (100) according to the third aspect, in the first or second aspect, the cross-sectional area of the branch piece (202) is as viewed from the part where the branch piece (202) and the connection piece (201) are connected. It is larger than the cross-sectional area of the connecting piece (201).

According to this aspect, since the heat capacity of the branch piece (202) is larger than that of the connecting piece (201), the heat applied to the connection piece (200) is easily transmitted to the branch piece (202). For this reason, there exists an advantage that heat is hard to be transmitted to an electronic component (60) via a connecting piece (201).

In the switch (100) according to the fourth aspect, in any one of the first to third aspects, at least a part of the branch piece (202) is buried in the base (11).

According to this aspect, the heat transmitted to the branch piece (202) can be easily radiated through the base (11). For this reason, compared with the case where the branch piece (202) is not embedded in the base (11), the heat applied to the connection piece (200) is more easily transmitted to the branch piece (202), and the heat is transmitted through the connection piece (201). Thus, there is an advantage that heat is not easily transmitted to the electronic component (60).

In the switch (100) according to the fifth aspect, in the fourth aspect, the branch piece (202) has a hook structure (depression) (204) that hooks onto a part of the base (11).

According to this aspect, even when stress is applied to the terminal (20), the movement of the branch piece (202) is restricted by part of the base (11) being hooked on the hook structure (204). 20) has an advantage that it is difficult to remove from the base (11).

In the switch (100) according to the sixth aspect, in any one of the first to fifth aspects, the electronic component (60) is embedded in the base (11).

According to this aspect, there is an advantage that downsizing can be achieved as compared with the case where the electronic component (60) is not embedded in the base (11). Moreover, according to this aspect, since the electronic component (60) is buried in the base (11), there is an advantage that the position of the electronic component (60) is difficult to shift.

In the switch (100) according to the seventh aspect, in any one of the first to sixth aspects, at least a part of the connecting piece (201) is exposed from the base (11).

According to this aspect, compared with the case where the whole connecting piece (201) is buried in the base (11), the portion not exposed from the base (11), specifically, the height of the case (1). There is an advantage that the size can be reduced.

In the switch (100) according to the eighth aspect, in any of the first to seventh aspects, the terminal (20) has an extension piece (203) further branched from the connecting piece (201).

According to this aspect, the heat transmitted from the connecting piece (200) to the connecting piece (201) is easily transferred to the extension piece (203), so that there is an advantage that the heat is less easily transferred to the electronic component (60).

In the switch (100) according to the ninth aspect, in any of the first to eighth aspects, the electronic component (60) is joined to the terminal (20) by solder.

According to this aspect, as compared with the case where the electronic component (60) is bonded to the terminal (20) with a conductive bonding material, the electronic component (60) is not affected even if a force is applied to the electronic component (60). There exists an advantage that it is hard to peel from a terminal (20).

The configurations according to the second to ninth aspects are not essential to the switch (100) and can be omitted as appropriate.

The switch (100) according to the tenth aspect includes a base (11), a first terminal (21), a second terminal (22), a fixed contact piece (3), and a first electronic component (first resistor). An element) (61), a second electronic component (second resistance element) (62), a return spring (8), an operator (4), and an actuator (5). The first terminal (21) is attached to the base (11) through the lower surface of the base (11) and extends in the vertical direction. The second terminal (22) is attached to the base (11) so as to be aligned with the first terminal (21) in the left-right direction perpendicular to the up-down direction, and extends in the up-down direction. The fixed contact piece (3) is attached through the upper surface of the base (11) between the first terminal (21) and the second terminal (22) in the left-right direction of the base (11). The first electronic component (61) is joined to the first terminal (21) and the fixed contact piece (3). The second electronic component (62) is joined to the second terminal (22) and the fixed contact piece (3). The return spring (8) is positioned so that the lower end contacts the upper end of the second terminal (22). The operation element (4) is supported by the base (11) via the return spring (8) and is movable in the vertical direction. The operating element (5) is attached to the operating element (4) and extends in the left-right direction. As the operating element (4) moves, the fixed contact piece (3) comes into contact with the movable contacts (511, 521) provided on the operating element (5), so that the first terminal (21) and the second terminal An electrical circuit between (22) is formed. The first terminal (21) includes a first connection piece (210) to which an external conductor is electrically connected, and an L-shaped first connection piece (211) extending upward from the upper end of the first connection piece (210). ), A first branch piece (212) branched from the first connecting piece (211) and protruding upward, and a first joining piece (213) extending upward from the upper end of the first connecting piece (211), Have The second terminal (22) has a second connection piece (220) to which an outer conductor different from the outer conductor is electrically connected, and an inverted L-shape extending upward from the upper end of the second connection piece (220). The second connecting piece (221), the second branch piece (222) branched from the second connecting piece (221) and protruding upward, and the second joint extending upward from the upper end of the second connecting piece (221) And a piece (223). The first electronic component (61) connects the first joining piece (213) and the fixed contact piece (3) in the left-right direction. The second electronic component (62) connects the second joining piece (223) and the fixed contact piece (3) in the left-right direction.

According to this aspect, since the first electronic component (61) and the second electronic component (62) are joined to the first terminal (21) and the second terminal (22), respectively, the board on which the electronic component is mounted There is an advantage that the switch (100) can be reduced in size compared with the case where the switch is attached to the switch case.

Furthermore, by providing the first branch piece (212) and the second branch piece (222), heat is released to the first branch piece (212) and the second branch piece (222), so that the first connecting piece ( 211) and the second connecting piece (221) are reduced in heat. Further, when the external conductor is connected to the first connection piece (210) and the second connection piece (220) by soldering, heat is released to the first branch piece (212) and the second branch piece (222). Thus, the heat transmitted to each of the first connecting piece (211) and the second connecting piece (221) is reduced. Therefore, both the solder joining the first terminal (21) and the first electronic component (61) and the solder joining the second terminal (22) and the second electronic component (62) are dissolved. There is an advantage that both the first electronic component (61) and the second electronic component (62) are hardly deteriorated.

In the switch (100) according to the eleventh aspect, in the tenth aspect, the first branch piece (212) and the first joining piece (213) are not in contact, and the second branch piece (222), It is not in contact with the second joining piece (223).

According to this aspect, when the external conductor is connected to the first connection piece (210) and the second connection piece (220) by soldering, the first connection piece (211) and the second connection piece (221). There is an advantage that the heat transmitted to each of them can be made smaller.

In the switch (100) according to the twelfth aspect, in the tenth or eleventh aspect, the first branch piece (212) and the second branch piece (222) are respectively in the left-right direction, the first joining piece (213). And the second joining piece (223).

According to this aspect, there is an advantage that the switch (100) can be reduced in size.

In the switch (100) according to the thirteenth aspect, in any of the tenth to twelfth aspects, the first terminal (21) and the second terminal (22) each contain phosphor bronze.

According to this aspect, for example, the thermoelectric power can be lowered as compared with the case where the first terminal (21) and the second terminal (22) each contain brass. Therefore, there is an advantage that heat transmitted to each of the first electronic component (61) and the second electronic component (62) can be further reduced.

In the switch (100) according to the fourteenth aspect, in any of the tenth to thirteenth aspects, the cross-sectional area of the cross section perpendicular to the protruding direction of the first branch piece (212) is the first connecting piece (211 ) Is larger than the cross-sectional area of the cross section perpendicular to the extending direction. The cross-sectional area of the cross section perpendicular to the projecting direction of the second branch piece (222) is larger than the cross-sectional area of the cross section perpendicular to the direction in which the second connecting piece (221) extends.

According to this aspect, the heat capacity of the first branch piece (212) can be made larger than the heat capacity of the first connecting piece (211), the heat transmitted to the first branch piece (212) can be increased, and the first There is an advantage that heat transmitted to the connecting piece (211) can be reduced. Further, the heat capacity of the second branch piece (222) can be made larger than the heat capacity of the second connection piece (221), and the heat transmitted to the second branch piece (222) is increased, so that the second connection piece (221) is obtained. There is an advantage that the heat transmitted to) can be reduced.

In the switch (100) according to the fifteenth aspect, in any one of the tenth to fourteenth aspects, the first electronic component (61) and the second electronic component (62) are each embedded in the base (11). .

According to this aspect, there is an advantage that the switch (100) can be reduced in size.

In the switch (100) according to the sixteenth aspect, in any of the tenth to fifteenth aspects, a part of the first terminal (21) is exposed from the upper surface of the base (11), and the second terminal A part of (22) is exposed from the upper surface of the base (11).

According to this aspect, the heat of the first connection piece (210) and the second connection piece (220) can be easily transferred to the exposed portions through the first connection piece (211) and the second connection piece (221), respectively. There is an advantage that heat transmitted to each of the first electronic component (61) and the second electronic component (62) can be reduced.

In the switch (100) according to the seventeenth aspect, in any one of the tenth to sixteenth aspects, the first electronic component (61) is joined to the first terminal (21) by solder. The second electronic component (62) is joined to the second terminal (22) by solder.

According to this aspect, even when force is applied to the first electronic component (61) and the second electronic component (62), it is difficult to separate from the first terminal (21) and the second terminal (22), respectively. There is an advantage.

In the switch (100) according to the eighteenth aspect, in any of the tenth to seventeenth aspects, each of the first electronic component (61) and the second electronic component (62) is a resistance element.

According to this aspect, since the resistance value between the first terminal (21) and the second terminal (22) is different, the contact ON / OFF and the first terminal (21) and the second terminal (22) There is an advantage that a disconnection / short circuit state of a connected lead wire or the like can be detected.

The configurations according to the eleventh to eighteenth aspects are not essential to the switch (100) and can be omitted as appropriate.

100 switch 11 base 20 terminal 21 first terminal 210 first connecting piece 211 first connecting piece 212 first branch piece 213 first joining piece 22 second terminal 220 second connecting piece 221 second connecting piece 222 second branch piece 223 2nd joining piece 200 Connection piece 201 Connecting piece 202 Branch piece 203 Extension piece 204 Indentation (hanging structure)
DESCRIPTION OF SYMBOLS 3 Fixed contact piece 4 Operating element 5 Actuator 511,521 Moving contact 60 Electronic component 61 1st electronic component 62 2nd electronic component 7 Contact part 8 Return spring

Claims (9)

1. Base and
   A first terminal attached to the base through a lower surface of the base and extending in a vertical direction;
   A second terminal attached to the base so as to be aligned with the first terminal in a left-right direction perpendicular to the up-down direction, and extending in the up-down direction;
   A fixed contact piece attached through an upper surface of the base between the first terminal and the second terminal in the left-right direction of the base;
   A first electronic component joined to the first terminal and the fixed contact piece;
   A second electronic component joined to the second terminal and the fixed contact piece;
   A return spring positioned so that the lower end contacts the upper end of the second terminal;
   An operation element supported by the base via the return spring and movable in the vertical direction;
   An actuator attached to the operating element and extending in the left-right direction;
   With
   With the movement of the operation element, the fixed contact piece contacts a movable contact provided on the operating element, thereby forming an electric circuit between the first terminal and the second terminal,
   The first terminal is
   A first connection piece to which an outer conductor is electrically connected;
   An L-shaped first connecting piece extending upward from the upper end of the first connecting piece;
   A first branch piece branched from the first connecting piece and projecting upward;
   A first joining piece extending upward from the upper end of the first connecting piece,
   The second terminal is
   A second connection piece to which an outer conductor different from the outer conductor is electrically connected;
   An inverted L-shaped second connecting piece extending upward from the upper end of the second connecting piece;
   A second branch piece branched from the second connecting piece and projecting upward;
   A second joining piece extending upward from the upper end of the second connecting piece,
   The first electronic component connects the first joining piece and the fixed contact piece in the left-right direction,
   The second electronic component connects the second joining piece and the fixed contact piece in the left-right direction;
   switch.
2. The first branch piece and the first joining piece are not in contact with each other,
   The second branch piece and the second joining piece are not in contact with each other,
   The switch according to claim 1.
3. The first branch piece and the second branch piece are respectively provided between the first joint piece and the second joint piece in the left-right direction.
   The switch according to claim 1 or 2.
4. The first terminal and the second terminal each contain phosphor bronze,
   The switch according to any one of claims 1 to 3.
5. The cross-sectional area of the cross section perpendicular to the protruding direction of the first branch piece is larger than the cross-sectional area of the cross section perpendicular to the direction in which the first connecting piece extends,
   The cross-sectional area of the cross section perpendicular to the protruding direction of the second branch piece is larger than the cross-sectional area of the cross section perpendicular to the direction in which the second connecting piece extends,
   The switch according to any one of claims 1 to 4.
6. Each of the first electronic component and the second electronic component is embedded in the base;
   The switch according to any one of claims 1 to 5.
7. A portion of the first terminal is exposed from the top surface of the base;
   A portion of the second terminal is exposed from the top surface of the base;
   The switch according to any one of claims 1 to 6.
8. The first electronic component is joined to the first terminal by solder,
   The second electronic element is joined to the second terminal by solder;
   The switch according to any one of claims 1 to 7.
9. Each of the first electronic component and the second electronic component is a resistance element.
   The switch according to any one of claims 1 to 8.

Images