JPH06111655A - Switch structure and manufacture thereof - Google Patents

Abstract

PURPOSE:To simplify the wiring by directly connecting a connector to a switch to eliminate a substrate for switch mounting. CONSTITUTION:A connector coupling part 4 is provided in a case 2, and contact parts 39a, 39b of switch terminals 7a, 7b are inserted into the connector coupling part 4. A connector 43 is directly connected to the switch structure 1 by connecting the connector 43 to the connector coupling part 4 to make a connector terminal 37 contact to the switch terminals 7a, 7b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch structure such as a push switch and a manufacturing method thereof.

[0002]

2. Description of the Related Art In a conventional switch structure of this type, as shown in FIGS. 33 to 35, left and right guide bosses 52 and a pair of terminal connecting portions 53 are projected on a bottom surface portion 51a of a case 51 of a switch 50. Therefore, the guide boss 52 is inserted into the boss hole 55 of the substrate 54, and the terminal connecting portion 5
3 is connected to the pattern of the substrate 54 by soldering, and the switch 5
0 was mounted on the substrate 54. A connector (not shown) is mounted on the board 54, and a connector (not shown) is connected to the connector to incorporate the switch structure into an electronic device.

[0003]

However, in the above-mentioned conventional switch structure, the switch structure is mounted on the board 54 as described above, and the connector is connected to the connector of the board 54 to make the switch structure electronic. Since it is incorporated in the device, there is a problem that not only the substrate 54 is required, but also the wiring becomes complicated.

The present invention was made in view of the above problems, and a first object of the present invention is to connect a connector directly to a switch and to provide a substrate for mounting the switch. An object of the present invention is to provide a switch structure that is unnecessary and can realize wiring simplification.

A second object of the present invention is to provide a switch structure in which the mounting strength of the switch is improved and the switch does not rattle even when the switch is operated.

A third object of the present invention is to make it possible to arrange the contact portion of the switch terminal in the connector coupling portion surrounding the contact portion, and to manufacture a switch directly connected to the connector. It is to provide a manufacturing method of a switch structure that enables the above.

[0007]

In order to achieve the above-mentioned first object, the present invention provides a connector coupling portion on a case so that a contact portion of a switch terminal is projected into the connector coupling portion, and this connector coupling portion is provided. The connector is connected to the switch terminal and the connector terminal is brought into contact with the switch terminal.

In order to achieve the above-mentioned second object, according to the present invention, locking legs that are locked in the locking holes of the mounting plate are provided on the left and right sides of the case, and the lower surface of the case is provided. The guide boss that engages with the guide boss hole of the mounting plate is formed, and the connector coupling portion that projects rearward from the rear surface of the case is provided with a rib portion whose lower edge contacts the mounting plate. An engaging projection with which the engaging hole is engaged with the mounting plate is formed at the lower edge portion of the.

In order to achieve the above-mentioned third object, according to the present invention, after the left and right switch terminals are insert-molded in a synthetic resin terminal plate, this terminal plate is insert-molded in a synthetic resin case. Thus, the contact portion of the switch terminal is projected into the connector coupling portion.

[0010]

With the switch structure of the present invention, the connector can be directly connected to the switch structure. For this reason, a board for mounting the switch becomes unnecessary, and the wiring can be simplified.

Further, according to the switch structure of the present invention, the switch is mounted on the mounting plate, the guide boss is inserted into the guide boss hole, the left and right locking leg portions are inserted into and locked into the left and right locking holes, and the engaging projection is further provided. When mounted by engaging the engaging holes, the lower edge of the rib contacts the surface of the mounting plate, and the locking legs support the switch from the left and right, improving the mounting strength of this switch. Even if the switch is operated, the switch does not rattle.

Further, according to the manufacturing method of the switch structure of the present invention, the contact portion of the switch terminal can be arranged in the connector coupling portion surrounding the contact portion, and the switch of the direct connector type can be manufactured. become.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a front view of the switch structure according to the present invention with a part thereof omitted, FIG. 2 is a longitudinal sectional view of the same, FIG. 3 is a rear view of the same, and FIG. 4 is a sectional view taken along line AA of FIG.

In the switch structure according to the present invention, the switch 1 includes a case 2, a cover 3, a push button (actuator) 16, a spring 17 and a movable terminal 18. As shown in FIGS. 5 to 9, the case 2 has a housing-like shape with an open front surface, and a rear surface 2a of the case 2 is provided with a connector coupling portion 4 projecting rearward. The connector coupling portion 4 has a U-shaped cross section that is open upward, and the bottom surface portion 4 of the connector coupling portion 4 is
An engaging groove 5 is formed in a in the front-rear direction, and
An engagement hole 6 is formed in the bottom surface portion 4a. As shown in FIGS. 10 and 11, a terminal plate 8 into which left and right switch terminals 7a and 7b are insert-molded is integrated by double molding in the upper inside portion of the case 2, and contact portions of the switch terminals 7a and 7b are integrated. 39 a and 39 b project into the connector coupling portion 4.

In this double mold, the terminal plate 8 is
Switch terminals 7a, 7 having contact surfaces 38a, 38b
b is insert-molded, and this terminal plate 8 is insert-molded in the case 2. This is because the contact portions 39a and 39b of the switch terminals 7a and 7b are surrounded by the mold of the connector coupling portion 4 and cannot be produced (insert cannot be cut) by a single insert molding. In addition, the case of the terminal board insertion method,
It was necessary to consider the fixation by the backlash (dimensional accuracy and tolerance becomes severe) between the terminal boards.

Cover mounting groove portions 9 are formed on the outer surfaces of the left and right portions 2b and 2c of the case 2, and engaging protrusions 10 are formed in these cover mounting groove portions 9. A guide groove portion 11 and a guide portion 12 extending in the front-rear direction are formed on the inner surfaces of the left and right portions 2b, 2c of the case 2, and a spring receiving portion 13 is formed on the inner surface of the rear portion 2a of the case 2. There is. Further, the left and right locking leg portions 1 are provided on the lower surface portion 2d of the case 2.
4 and a central guide boss 15 are formed.

As shown in FIGS. 12 and 13, the cover 3 has leg portions 20 formed on the left and right sides of the cover surface portion 19, and button holes 21 are formed in the cover surface portion 19 so that the leg portions 20 can be formed. An engagement hole 22 is formed on the front side.

The push button 16 is provided with a button portion 23 as shown in FIGS.
A guide portion 25 and a guide groove portion 26 are formed on the left and right surface portions of the base portion 24 of No. 3, and movable terminal holding portions 27 are formed on the left and right on the upper surface portion of the base portion 24. A spring receiving hole 28 is formed on the end face of the base 24.

As shown in FIGS. 18 to 20, the movable terminal 18 has two back and left contact piece portions 30 formed on the back portion 29, and these contact piece portions 30 are curved so that the end portions are shaped like boat bottoms. It was formed.

Then, the back terminal 29 of the movable terminal 18 is inserted into the movable terminal holding portion 27 of the push button 16 to attach the movable terminal 18, and the spring 17 is inserted into the case 2 so that the spring 17 The rear end is received by the spring receiving portion 13, the front end of the spring 17 is received by the spring receiving hole portion 28 of the push button 16, and the guide portion 25 of the case 2 and the guide portion 12 are inserted into the guide groove portion 26, respectively. Then, the push button 16 is inserted into the case 2, the button portion 23 of the push button 16 is inserted into the button hole 21 of the cover 3, and the leg portion 20 of the cover 3 is aligned with the cover mounting groove portion 9 of the case 2. The switch 1 is configured by engaging the engaging protrusions 10 with the engaging holes 22 of the leg portions 20 and attaching the cover 3 to the case 2.

The connector 43 is shown in FIGS. 21 and 22. The connector 43 is provided with a connector housing 31, and a lower surface portion 31a of the connector housing 31 is formed with an engaging convex portion 32 at the center and an engaging protrusion 33 at the left and right sides. In addition, an insertion hole 34 is formed in the front surface portion 31b of the connector housing 31, and a terminal insertion groove portion 35 that communicates with the insertion hole 34 is formed in the upper surface portion 31c. A connector terminal 37 pressed into contact with the portion is inserted.

As shown in FIG. 24, the mounting plate 40 has a guide boss hole 41 and left and right locking holes 42. The switch 1 is mounted on the mounting plate 40 and the guide boss 15 is mounted on the guide boss hole 41. The left and right locking leg portions 14 are inserted and locked in the left and right locking holes 42 and attached.

The connector 43 is connected to the switch 1. That is, the connector 43 is connected to the connector coupling portion 4.
The contact portions 39a, 39b of the switch terminals 7a, 7b of the insertion hole 34 of the connector 43 are inserted so that the contact portions 39a, 39b are in contact with the connector terminal 37. In this case, the connector 43
The engaging protrusion 32 of the connector engages with the engaging groove 5 of the bottom surface 4 a of the connector coupling portion 4, and the engaging protrusion 33 of the connector 43 engages with the engaging hole 6.

Next, the operation of the above embodiment will be described. When the push button 16 is not pushed, the push button 16 is biased forward by the spring force of the spring 17,
The contact piece portion 30 of the movable terminal 18 is disengaged from the contact surface portion 38a of the switch terminal 7a and is not in contact therewith.

By pressing the push button 16, the spring 17 is compressed, the movable terminal 18 is moved, and the left contact piece portion 30 of the movable terminal 18 is moved to the contact surface portion 3 of the left switch terminal 7a.
Contact 8a. Since the right contact piece portion 30 is always in contact with the contact surface portion 38b of the right switch terminal 7b, the left and right switch terminals 7a and 7b are short-circuited via the movable terminal 18. Therefore, the left and right connector terminals 37 contacting the contact portions 39a, 39b of the left and right switch terminals 7a, 7b are electrically connected to each other.

In the above-described embodiment, the case 2 is provided with the connector coupling portion 4, the contact portions 39a and 39b of the switch terminals 7a and 7b are projected into the connector coupling portion 4, and the connector coupling portion 4 is connected to the connector coupling portion 4. The connector 43 can be directly connected to the switch 1 by connecting the connector terminal 37 to the switch terminals 7a and 7b by connecting the connector 43 to each other. For this reason, a board for mounting the switch becomes unnecessary, and the wiring can be simplified.

Also, after the left and right switch terminals 7a and 7b are insert-molded on the synthetic resin terminal plate 8, the terminal plate 8 is insert-molded on the synthetic resin case 2, whereby the contact portions of the switch terminals 7a and 7b are formed. 39a, 3
Since 9b is made to project into the connector coupling portion 4,
Contact portions 39a, 39b of the switch terminals 7a, 7b
Can be arranged in the connector coupling portion 4 surrounding the contact portions 39a and 39b, and the switch 1 directly connected to the connector can be manufactured.

25 to 30 show another embodiment of the switch structure according to the present invention. In this embodiment, the left and right side portions 2b, 2c of the case 2 are provided with locking leg portions 60 which are wide from the upper part of the case 2 toward the lower side thereof, and the tip portions of these locking leg portions 60 are provided. A claw portion 60a that protrudes outward is formed on this. These locking legs 60 are provided on the left side of the case 2,
Covering the cover mounting groove 9 provided on the left and right side portions 2b, 2c, which is located outside the right side portions 2b, 2c,
Moreover, the width is set to be as large as the width of the case 2. Further, a guide boss 61 is formed on the lower surface 2d of the case 2, and a rib portion 62 along the axial direction of the case 2 is formed at the center of the lower surface of the connector coupling portion 4 protruding rearward of the rear surface 2a of the case 2. Is formed, and this rib portion 6
An engaging protrusion 63 is formed on the lower edge portion 62a of the second portion. The other structure is similar to that of the above embodiment.

As shown in FIG. 31, the mounting plate 64 has a guide boss hole 65 and an engaging hole 66 in the front and rear, and a locking hole 6 in the left and right.
7 are formed respectively, and a square notch 68 in a plan view is formed on the outer surface of the locking hole 67. The switch 1 is mounted on the mounting plate 64 and the guide boss 6
1 is inserted in the guide boss hole 65, and the left and right locking leg portions 60 are inserted and locked in the left and right locking holes 67. in this case,
The claw portion 60a at the tip of the locking leg portion 60 engages with the lower side of the outer edge portion of the locking hole 67.

In this case, the lower edge portion 62a of the rib portion 62
Contacts the surface of the mounting plate 64, and the wide locking legs 60 support the switch 1 from the left and right, so that the switch 1 is firmly mounted on the mounting plate 64.

The attachment and operation of the connector 43 to the switch 1 are the same as in the case of the above-described embodiment, but since the switch 1 is firmly attached to the attachment plate 64 as described above, the push button is used. By pushing 16, the left and right switch terminals 7a, 7
The operation of short-circuiting b does not cause rattling of the switch 1.

[0032]

As described above, according to the present invention, the connector coupling portion is provided in the case, the contact portion of the switch terminal is projected into the connector coupling portion, and the connector is coupled to the connector coupling portion to connect the switch terminal to the connector. Since the terminals are in contact with each other, the connector can be directly connected to the switch. For this reason, a board for mounting the switch becomes unnecessary, and the wiring can be simplified.

Further, according to the present invention, on the left and right sides of the case,
Providing locking legs that are locked in the locking holes of the mounting plate, forming guide bosses that engage with the guide boss holes of the mounting plate on the lower surface of the case, and projecting rearward from the back surface of the case The connector coupling portion is provided with a rib portion whose lower edge portion abuts on the mounting plate, and the lower edge portion of this rib portion is formed with an engaging projection that engages with the engaging hole of the mounting plate. Switch
When the guide boss is inserted into the guide boss hole, the left and right locking legs are inserted and locked in the left and right locking holes, and the engaging projection is engaged with the engaging hole, the lower edge of the rib portion is attached. Since the portion abuts on the surface of the mounting plate and the locking legs support the switch from the left and right, the mounting strength of the switch is improved and the switch does not rattle even when the switch is operated.

Further, according to the present invention, after the left and right switch terminals are insert-molded on the synthetic resin terminal plate, the terminal plate is insert-molded on the synthetic resin case so that the contact portion of the switch terminal becomes the connector coupling portion. Since the contact portions of the switch terminals are arranged so as to rush, it is possible to arrange the contact portions of the switch terminals in the connector coupling portion surrounding the contact portions, and it is possible to manufacture a switch of the direct connector coupling type.

[Brief description of drawings]

FIG. 1 is a partially omitted front view of a switch structure according to the present invention.

FIG. 2 is a vertical sectional view of the same.

FIG. 3 is a rear view of the same.

FIG. 4 is a sectional view taken along the line AA of FIG.

FIG. 5 is a front view of the case.

FIG. 6 is a side view of the same.

FIG. 7 is a rear view of the same.

FIG. 8 is a sectional view taken along the line BB of FIG.

9 is a cross-sectional view taken along the line 5C-C of FIG.

FIG. 10 is a side view of a terminal plate in which left and right terminals are insert-molded.

FIG. 11 is a plan view of the same.

FIG. 12 is a front view of the cover.

FIG. 13 is a side view showing a cross section of the same portion.

FIG. 14 is a side view of a push button.

FIG. 15 is a front view of the same.

FIG. 16 is a rear view of the same.

FIG. 17 is a cross-sectional view taken along the line 15D-D of FIG.

FIG. 18 is a plan view of a movable terminal.

FIG. 19 is a front view of the same.

FIG. 20 is a side view of the same.

FIG. 21 is a front view of the connector.

FIG. 22 is a plan view of the connector.

FIG. 23 is a cross-sectional view showing a state in which the connector is coupled to the switch structure.

FIG. 24 is an explanatory view of the layout of mounting holes of the switch structure on the mounting plate.

FIG. 25 is a side view of another embodiment of the switch structure according to the present invention.

FIG. 26 is a plan view of the same.

FIG. 27 is a bottom view of the same.

FIG. 28 is a rear view of the same.

FIG. 29 is a front view of the same.

FIG. 30 is a vertical sectional view of the same.

FIG. 31 is a layout explanatory view of the mounting holes of the switch structure in the mounting plate.

FIG. 32 is a perspective view showing a state where the switch structure according to the present invention is mounted on a mounting plate.

FIG. 33 is a side view of a conventional switch structure.

FIG. 34 is a bottom view of the same.

FIG. 35 is a side view, partly in section, of a case of a conventional switch structure.

[Explanation of symbols]

 1 Switch structure 2 Case 4 Connector connecting part 7a Switch terminal 7b Switch terminal 37 Connector terminal 43 Connector

Claims (3)

[Claims] 1. A connector coupling part is provided on a case, and a contact part of a switch terminal is projected into the connector coupling part,
A switch structure characterized in that a connector is connected to the connector connecting portion and the connector terminal is brought into contact with the switch terminal. 2. The left and right sides of the case are provided with locking legs that are locked in the locking holes of the mounting plate, and guide bosses that are engaged with the guide boss holes of the mounting plate are provided on the lower surface of the case. The connector coupling part that is formed and protrudes rearward from the back surface of the case is provided with a rib portion whose lower edge contacts the mounting plate, and the lower edge of the rib portion engages the engaging hole with the mounting plate. The switch structure is characterized in that an engaging protrusion is formed. 3. A contact part of the switch terminal is projected into a connector coupling part by insert-molding the left and right switch terminals on a synthetic resin terminal plate and then insert-molding the terminal plate on a synthetic resin case. A method of manufacturing a switch structure characterized by the above.