KR20170008425A

KR20170008425A - Push switch

Info

Publication number: KR20170008425A
Application number: KR1020150099578A
Authority: KR
Inventors: 다카히사 기타하라
Original assignee: 도쿄파츠고교 가부시키가이샤
Priority date: 2015-07-14
Filing date: 2015-07-14
Publication date: 2017-01-24

Abstract

The present invention provides a push switch with high reliability which can easily perform an electrical connection of each member without soldering and cut a member. The push switch comprises a switch case (40), a soft pressing button (50), a switch component (10), a terminal member (20A, 20B), and a lead wire (30). The terminal member (20A, 20B) has a plane unit (21) having a first connection unit (24) to which a connection terminal (13) of the switch component is connected without soldering, and a first receiving unit (22) having a second connection unit (25) to which the lead wire is connected without soldering. The switch case (40) has a first support unit (44) to support the inserted lead wire (30), and a second support unit (45) to support the plane unit (21) of the terminal member.

Description

Push switch {PUSH SWITCH}

The present invention relates to a push switch using a soft push button.

As a push switch employing a soft push button, for example, Patent Document 1 discloses a push switch including a switch part disposed on a pedestal, a cylindrical case housing the switch part, and a push button .

In the push switch described in Patent Document 1, the terminal of the switch part is connected to the terminal member mounted on the lower surface of the pedestal, and the lead wire is connected to the terminal member, which is advantageous in that the printed wiring board is unnecessary.

Japanese Patent Application Laid-Open No. 12-19494

However, in the push switch disclosed in Patent Document 1, since a pedestal for placing a switch component is required in addition to a tubular case for housing the switch component, a printed wiring board is unnecessary, but the member can not be sufficiently reduced.

In the push switch disclosed in Patent Document 1, it is necessary to solder the terminal of the switch to the terminal member and to connect the lead wire to the terminal member by soldering. As a result, the production time could not be shortened sufficiently.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a push switch capable of reducing the number of additional members and facilitating manufacturing.

Hereinafter, embodiments of the present invention for solving the above problems will be described. In addition, the constituent elements employed in the respective aspects described below can be employed in any combination as far as possible. The aspects or technical features of the present invention are not limited to those described below, but may be recognized based on the entire specification and the description of the drawings, or from the description thereof, based on inventive ideas that can be understood by a person skilled in the art.

A first aspect of the present invention is a switch casing comprising: a switch case having a bottom surface and a side surface and having an opening on an upper surface; a soft push button mounted on the switch case to close the opening; A switch component disposed in the space and having an operating portion on the top and a plurality of connection terminals protruding downwardly, a terminal member electrically connected to the connection terminal, and a lead wire electrically connected to the terminal member The push switch comprising:

The terminal member has a flat portion formed with a first connecting portion to which the connecting terminal is connected without soldering and a first receiving portion provided with a second connecting portion that is suspended from one end of the flat portion and connected to the lead wire without soldering ,

The switch case includes an insertion hole formed in the side surface for inserting the lead wire into the space, a first support portion for supporting the lead wire inserted in the space, and a second support portion for supporting the flat portion of the terminal member .

In the push switch of this aspect, since the terminal member, the lead wire, and the connection terminal of the switch component can be easily electrically connected without soldering, and the terminal member and the switch component are supported by the switch case, A highly reliable push switch can be realized.

According to a second aspect of the present invention, the switch case has a groove portion into which the first water bottom is fitted.

In the push switch of this aspect, the terminal member can be easily positioned, and the electrical connection between the second connecting portion of the terminal member and the lead wire can be carried out very easily.

The third aspect of the present invention is characterized in that the terminal member has a second water bottom portion received from the other end of the flat surface portion, and the switch case has a fixing portion for fixing the second water bottom portion.

In the push switch of this embodiment, the terminal member can be firmly fixed to the switch case, and a more reliable push switch can be realized.

According to a fourth aspect of the present invention, the switch case has a resin filling chamber provided so as to surround the insertion hole, and the resin filling chamber is filled with resin.

In the push switch of this embodiment, the penetration of water into the internal space in which the switch parts are disposed can be effectively prevented, and a push switch excellent in waterproofness can be realized.

INDUSTRIAL APPLICABILITY According to the push switch of the present invention, the terminal member, the lead wire, and the connection terminal of the switch component can be easily connected without soldering, and a push switch with a high reliability can be realized with a small number of members.

1 is a plan view of a push switch according to an embodiment of the present invention.
2 is a front view of the push switch of Fig.
3 is a left side view of the push switch of Fig.
4 is a sectional view taken along the line A-A in Fig.
5 is a sectional view taken along the line B-B in Fig.
6 is a sectional view taken along the line C-C in Fig.
7 is a sectional view taken along the line D-D in Fig.
8 is a plan view of the case of the push switch of Fig.
Fig. 9 is a perspective view of the terminal member of the push switch of Fig. 1;
10 is a plan view for explaining the assembling procedure of the push switch of FIG.
11 is a plan view for explaining the assembling procedure of the push switch of Fig.
12 is a plan view for explaining the assembling procedure of the push switch of FIG.

In order to make the present invention more specifically, an embodiment of the present invention will be described in detail with reference to the drawings.

(Embodiment Mode)

The push switch 1 of this embodiment is mounted on a door handle device for a vehicle (not shown). When the user operates the door lock device, the push button 50 of the push switch 1 exposed from the door handle device for a vehicle can be depressed or unlocked by pressing the push button 50.

The push switch 1 includes a switch component 10, two terminal members 20A and 20B, two lead wires 30, a switch case 40, a push button 50, a cover member 60).

The switch component 10 has a cylindrical operating portion 11, a rectangular parallelepiped body portion 12, and four connection terminals 13. The operating portion 11 protrudes upward from the inside of the main body portion 12 and is movable in the up and down direction in Fig. 7 and is elastically supported upward in Fig. 7 by an elastic member (not shown) in the main body portion 12 have. The connection terminal 13 protrudes downward from the main body 12.

The switch component 10 is disposed in a space formed by the switch case 40 and the push button 50, which will be described later.

The terminal members 20A and 20B are made of a conductive metal plate and have a flat surface portion 21 and a first water bottom portion 22 and a second water bottom portion 23 which are received from both ends of the flat surface portion 21 have.

A first connecting portion 24 for electrically connecting the connecting terminal 13 of the switch component 10 without soldering is formed on the flat surface portion 21. The first connecting portion 24 is formed with a tongue piece having a cantilevered shape with three circumferential directions notched. The tread is bent slightly downward.

A notch portion 26 into which the guide walls 47c and 47d provided in the switch case 40 to be described later is inserted is formed in the flat surface portion 21. [

A second connecting portion 25 for electrically connecting the lead wire 30 to the first water receiving portion 22 without soldering is formed in the first water receiving portion 22. The second connecting portion 25 is formed with a longitudinal slit having a width slightly smaller than the diameter of the core wire of the lead wire 30 formed by insulating the core wire.

The second water receiving portion 23 is shorter than the first water receiving portion 22 and has a slightly curved shape so as to be fixed to the groove portion 46b of the switch case 40 to be described later.

The switch case 40 is integrally molded with a bottomed prism with a hard resin, has a bottom surface and a side surface, and has an opening on its top surface.

A hooking hook 41 for hooking a latching portion 61 of a cover member 60 to be described later is provided at the upper portion of two opposing sides of the switch case 40.

A circular insertion hole 42a for inserting the leading ends of the two lead wires 30 into the switch case is formed on one side of the switch case 40 on which the hooking hook 41 is not provided. The diameter of the insertion hole 42a is slightly larger than the diameter of the lead wire 30.

A resin filling chamber 42 is provided on one side surface of the switch case 40 so as to surround the insertion hole 42a. This resin filling chamber 42 represents a prismatic shape protruding outward from one side of the switch case 40. Finally, the resin filling chamber 42 is filled with water for waterproofing treatment.

Three vertical walls 43a, 43b and 43c parallel to the inserting direction of the lead wires 30 (left and right in the drawing in FIG. 8) are formed inside the switch case 40, And a single upright wall 43d is provided.

A first support portion 44 is provided adjacent to the insertion hole 42a between the upright wall 43a and the upright wall 43b and between the upright wall 43a and the upright wall 43c. The first support portion 44 is a portion for supporting the tip end portion of the lead wire 30 inserted from the insertion hole 42a and is formed by a groove having a width slightly narrower than the diameter of the lead wire 30. [ The leading end portion of the lead wire 30 is press-fitted into the first supporting portion 44 from above.

A portion of the upper surface of the upright walls 43a, 43b and 43c (the portion obliquely processed in Fig. 8) is a second support portion 45 for supporting the flat portion 21 of the terminal members 20A and 20B.

A groove portion 46a into which the first water bottom portion 22 of the terminal members 20A and 20B is inserted and a second water bottom portion 23 of the terminal members 20A and 20B are inserted into the upright walls 43a, 43b, And a fixed groove portion 46b is provided. The groove portion 46a is provided in the middle of the first support portion 44 in the left-right direction in FIG.

The widths of the groove portions 46a and 46b are linear and the width of the groove portions 46a and 46b in the left and right direction in the drawing is smaller than the widths of the first and second water receiving portions 22 and 23 of the terminal members 20A and 20B. ).

Guide walls 47a, 47b, 47c, 47d for guiding the main body portion 12 of the switch component 10 from the side are provided on the upper surfaces of the upright walls 43a, 43b, 43c. In addition, the middle portion of the upright wall 43a is partially raised, and guide walls 47a and 47b are provided at the raised portion.

The push button 50 is formed of a flexible resin having elasticity such as rubber and has an upper operation wall 51 and a side wall 52 which is received from the peripheral edge thereof.

The push button 50 is mounted on the upper portion of the switch case 40 so as to close the opening of the switch case 40. Specifically, the side circumferential wall 52 is fitted into the stepped portion provided on the upper outer periphery of the switch case 40, and the cover member 60 is fitted into the outer circumference of the side circumferential wall 52 Loses. The retaining portion 61 of the cover member 60 is caught by the retaining hook 41 of the switch case 40 so that the push button 50 and the cover member 60 are fixed to the switch case 40 .

When the push switch 1 is attached to a door handle (not shown), the upper operation wall 51 of the push button 50 is mounted inside the door handle so as to be exposed to the outside.

Next, a method of assembling the push switch 1 of the present example will be described.

First, two lead wires 30 are inserted into the switch case 40 through the insertion hole 42a. Then, the leading end portion of the lead wire 30 is pressed into the first supporting portion 44 by pressing it from above (see Fig. 10). Accordingly, the lead wire 30 is fixed to the switch case 40 and is not easily removed.

The first water bottom 22 and the second water bottom 23 of the terminal members 20A and 20B are inserted into the groove portion 46a and the groove portion 46b of the switch case 40 respectively (see Fig. 11) .

When the first water receiving portion 22 of the terminal members 20A and 20B is fitted into the groove portion 46a, the second connecting portion 25 formed of the longitudinal slits formed in the first water receiving portion 22, The front end portion of the first housing 30 is inserted. At this time, since the width of the slit of the second connecting portion 25 is slightly smaller than the diameter of the core wire of the lead wire 30, both side portions of the slit of the second connecting portion 25 penetrate into the insulating cover material of the lead wire 30, 30 are electrically connected to the terminal members 20A, 20B.

When the second water receiving portion 23 of the terminal members 20A and 20B is fitted in the groove portion 46b, the slightly curved second water receiving portion 23 follows the shape of the linear groove portion 46b . The terminal members 20A and 20B are fixed to the switch case 40 by the elastic force accompanying the deformation of the second water receiver 23 so that the terminal members 20A and 20B are lifted from the switch case 40 There is nothing to lose. Thus, the groove portion 46b of the switch case 40 functions as a fixing portion for fixing the terminal members 20A and 20B.

When the first water receiving portion 22 and the second water receiving portion 23 of the terminal members 20A and 20B are fitted into the groove portion 46a and the groove portion 46b respectively, 40 and the guide walls 47c, 47d are partially inserted into the notch 26. The guide walls 47c, Thus, the terminal members 20A and 20B are fixed to the switch case 40 in a stable state without causing a positional deviation in the horizontal direction or lifting in the vertical direction.

Next, assemble the switch part (10). Specifically, the four connection terminals 13 of the switch component 10 are inserted into four first connection portions 24 formed in the plane portion 21 of the terminal members 20A and 20B 12).

When the connection terminal 13 is inserted into the first connection portion 24, the tongues of the first connection portion 24 are deformed downward, and the connection terminal 13 is pressed and fixed by the elastic force accompanying the deformation of the tongue , The connection terminals 13 and the terminal members 20A and 20B are electrically connected.

When the connection terminal 13 is inserted into the first connection portion 24, the rectangular-shaped main body portion 12 of the switch component 10 contacts the guide walls 47a, 47b, 47c, and 47d of the switch case 40, As shown in Fig. As a result, the four side surfaces of the switch component 10 are constrained to prevent the backlash of the switch component 10, thereby improving the electrical connection reliability between the connection terminal 13 and the terminal members 20A and 20B have.

Next, after the push button 50 is mounted to close the opening of the switch case 40, the cover member 60 is mounted. Finally, resin (not shown) is inserted into the resin filling chamber 42 of the switch case 40 ).

7, when the upper operation wall 51 of the push button 50 is pushed downward from the upper direction of Fig. 7, the upper operation wall 51 is resiliently deformed and the switch component 10 is pushed downward to turn on the switch, and a signal is transmitted to the outside by the lead wire 30.

When the pushing operation of the upper operation wall 51 is released, the operation is returned to the initial state by the restoring force of the soft push button 50, and the operation portion 11 of the switch component 10 also returns to the upper position to turn off the switch .

According to the above-described push switch 1 of the present embodiment, the connection terminal 13 of the switch component 10 and the connection terminal 13 of the switch component 10 are connected by the first connection portion 24 and the second connection portion 25 formed in the terminal members 20A, The lead wires 30 can be electrically connected without soldering.

The switch case 40 has the first support portion 44 for restricting the tip end portion of the lead wire 30 inserted therein so that the lead wire 30 oscillates when the terminal members 20A and 20B are pushed in. The electrical connection between the second connecting portion 25 and the lead wire 30 can be easily carried out with high reliability.

The flat portions 21 of the terminal members 20A and 20B are supported by the second support portions 45 of the switch case 40 and the tip portions thereof are connected to the lead wires The terminal members 20A and 20B are fitted into the second connecting portions 25 of the terminal members 20A and 20B so that when the connecting terminal 13 of the switch component 10 is pushed into the first connecting portion 24, 20B are prevented from bending or oscillating. This makes it possible to easily and electrically connect the first connection portions 24 of the terminal members 20A and 20B to the connection terminals 13 of the switch component 10 with high reliability.

Therefore, according to this example, a solder connection is unnecessary, and a push switch with high reliability can be realized with a small number of members while realizing easiness of manufacturing.

In the push switch 1 of this embodiment, since the groove portion 46a into which the first water receiving portion 22 of the terminal members 20A, 20B is fitted is provided in the switch case 40, the terminal members 20A, 20B can be easily positioned so that the electrical connection between the second connecting portion 25 and the lead wire 30 can be performed very easily.

In the push switch 1 of this embodiment, since the groove portion 46b for fitting and securing the second water receiving portion 23 of the terminal members 20A and 20B is provided in the switch case 40, the terminal member 20A And 20B can be firmly fixed to the switch case 40, thereby realizing a more reliable push switch.

In the push switch 1 of the present embodiment, since resin is filled in the resin filling chamber 42 provided so as to surround the insertion hole 42a into which the lead wire 30 is inserted, the switch case 10 40 can be effectively prevented, and a push switch excellent in waterproofness can be realized.

Although the embodiment of the present invention has been described above, the present invention is not limited to these embodiments, and it is needless to say that the present invention can be appropriately changed without departing from the gist of the present invention.

Concretely, for example, the first connecting portion 24 provided on the terminal members 20A, 20B can be formed into any shape as long as it can be electrically connected to the connecting terminal 13 without soldering have.

The second connecting portions 25 provided on the terminal members 20A and 20B may be slits or notches of arbitrary shapes as long as they can be electrically connected to the lead wires 30 without soldering.

It is preferable that the first support portion 44 of the switch case 40 be simple and reliable because the tip of the lead wire 30 can be pressed and fixed from above. Or a shape in which it is merely inserted can be employed.

The structure for fixing the terminal members 20A and 20B to the switch case 40 is preferable because it is simpler to use the elastic force accompanying the deformation of the second water receiver 23, A hook for hooking the terminal member may be provided, or a configuration in which a part of the terminal member is simply press-fitted may be adopted. In order to further secure the fixing of the terminal members 20A and 20B, the first water bottom 22 is fixed to the groove portion 46a of the switch case 40 like the second water bottom 23 It is also preferable to form a slightly curved shape.

Claims

A switch case having a bottom surface and a side surface and having an opening on an upper surface thereof,
A soft push button mounted on the switch case to close the opening,
A switch component which is disposed in the space formed by the switch case and the push button and has an operating portion on the top and a plurality of connection terminals protruding downwardly,
A terminal member electrically connected to the connection terminal,
A push switch having a lead wire electrically connected to the terminal member,
Wherein the terminal member has a flat portion formed with a first connecting portion to which the connecting terminal is connected without soldering and a first receiving portion formed with a second connecting portion that is received from one end of the flat portion and is connected to the lead wire without soldering,
The switch case includes an insertion hole formed in the side surface for inserting the lead wire into the space, a first support portion for supporting the lead wire inserted in the space, and a second support portion for supporting the flat portion of the terminal member Features a push switch.

The method according to claim 1,
Wherein the switch case has a groove portion into which the first water bottom is inserted.

The method according to claim 1,
The terminal member has a second water bottom that is received from the other end of the flat surface portion,
And the switch case has a fixing portion for fixing the second water bottom.

3. The method of claim 2,
The terminal member has a second water bottom that is received from the other end of the flat surface portion,
And the switch case has a fixing portion for fixing the second water bottom.

The method according to claim 1,
Wherein the first connecting portion has a tongue piece having a cantilever shape in which three peripheral directions are notched,
Wherein the tongue piece is bent to be slightly inclined downward.

The method according to claim 1,
And the second connecting portion has a longitudinal slit that is slightly narrower than the diameter of the core wire of the lead wire.

The method according to claim 1,
The switch case has a guide wall,
Wherein the flat portion has a notch portion into which the guide wall is partially fitted.

8. A method according to any one of claims 1 to 7,
Wherein the switch case has a resin filling chamber provided so as to surround the insertion hole,
Wherein the resin filling chamber is filled with a resin.