JP2016184458A - Switch and manufacturing method of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a switch using an incorrect assembly prevention structure for suppressing increase in manufacturing steps by making common molds used when molding a component to be assembled to bodies of a plurality of kinds of shapes and a manufacturing method of the same.SOLUTION: Switches 1L, 1R include; slide contacts 32; a plurality of switch bodies 3L, 3R including switch socket insertion ports 30L, 30R including projections 31L, 31R each as an identification part of a different shape; bodies 24 molded in a common shape to be fitted to the switch socket insertion ports 30L, 30R; and switch sockets 2L, 2R, including leads 20L, 20R, electrically connected to slide contacts 32 by being buried in the bodies 24. The leads 20L, 20R are notched in accordance with the projections 31L, 31R as identification parts.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a switch and a method for manufacturing the switch.

  As a conventional technique, there is a misassembly prevention structure that reduces the types of molds used when molding a part to be assembled to a body having a plurality of types of shapes (see, for example, Patent Document 1).

  This misassembly prevention structure is a body in which multiple types of shapes are prepared by providing ribs at different positions with respect to a common shape, and a part that is assembled to the body, and a plurality of shapes corresponding to the ribs on the body The protrusions of the part are integrally connected via the thin-walled part, and the part is molded by manually removing the protrusions that do not correspond to the ribs of the body to be assembled among the plurality of protrusions of the part It is possible to reduce the types of molds used at the time.

JP 2010-102927 A

  However, since the erroneous assembly prevention structure shown in Patent Document 1 removes the projections selected according to the ribs on the body side from a plurality of projections, there is a problem that a process of removing the projections is necessary after the completion of the part. was there. Further, when removing the protrusions manually, there is a possibility that the protrusions to be removed may be wrong, and there is a problem that it is not always possible to prevent erroneous assembly.

  Accordingly, an object of the present invention is to provide a switch and a switch using a misassembly prevention structure that uses a common mold for molding a part to be assembled to a body having a plurality of types of shapes and suppresses an increase in manufacturing steps. It is in providing the manufacturing method of.

One aspect of the present invention is a plurality of switch bodies each having an insertion port provided with differently shaped identification parts;
A switch comprising a main body portion molded in a common shape to be fitted into the insertion port of the switch body, and a lead having a notch portion embedded in the main body portion and notched corresponding to the identification portion. A switch having a socket is provided.

  The switch socket may be such that the notch of the lead is notched during trimming.

  The switch socket may be configured such that the cutout portion of the lead is cut out simultaneously with trimming of the connecting portion of the lead frame.

Further, according to one aspect of the present invention, a mold is used to partially embed a lead frame and insert-mold a switch socket body, and
And a step of trimming a portion of the lead frame projecting from the main body in accordance with the shape of the identification part of the switch body into which the switch socket is inserted.

  The trimming step may be performed simultaneously with the step of trimming the connecting portion of the leads.

  ADVANTAGE OF THE INVENTION According to this invention, the metal mold | die used when shape | molding the components assembled | attached to the body of a multiple types of shape can be made common, and the increase in a manufacturing process can be suppressed.

FIG. 1 is a schematic diagram illustrating an example of a configuration of a switch according to the first embodiment. 2A to 2C are three views showing an example of the configuration of the switch socket of the switch. FIGS. 3A to 3C are three views showing an example of the configuration of the body of the switch. 4 (a) and 4 (b) are schematic diagrams showing the on / off state of the switch. FIGS. 5A to 5C are views for explaining a method for manufacturing a switch socket of a switch. FIGS. 6A to 6C are views for explaining a method for manufacturing a switch socket according to the second embodiment.

[First Embodiment]
(Switch configuration)
FIGS. 1A and 1B are schematic diagrams illustrating an example of a configuration of a switch according to the first embodiment. FIGS. 2A to 2C are three views showing an example of the configuration of the switch socket of the switch. FIGS. 3A to 3C are three views showing an example of the configuration of the body of the switch.

  In FIG. 1, reference numerals 1 </ b> L and 1 </ b> R indicating the whole schematically illustrate typical switches in the embodiment. The switches 1L and 1R are not particularly limited. For example, the switches 1L and 1R are used as paddle shift switches, and are connected to left and right paddle levers to output an on signal based on a push or pull operation. Control the operation. In addition, you may use in order to control operation | movement of vehicle equipment, such as an audio apparatus and a navigation apparatus. The switches 1L and 1R are disposed, for example, around the steering wheel.

  The switch 1L has a switch socket 2L and a switch body 3L. The switch socket 2L is fitted into the switch socket insertion port 30L of the switch body 3L, and an engagement claw and an engagement groove (not shown) provided on each of the switch sockets 2L are engaged. By joining, they are fixed to each other.

  The switch 1R includes a switch socket 2R and a switch body 3R. The switch socket 2R is fitted into the switch socket insertion port 30R of the switch body 3R. Are fixed to each other by engaging.

  Here, the switch bodies 3L and 3R are arranged on the left and right sides of the steering wheel, respectively, are molded using different molds for identification, and the protrusions 31L and 31R as identification parts are provided at different positions. Have. On the other hand, in the switch sockets 2L and 2R, the main body 24 is formed using the same mold, and the lead protrusions 20L and 20R are provided at different positions.

  That is, depending on which of the lead protrusions 20L and 20R is provided, it is determined which of the switch socket insertion holes 30L and 30R of the switch bodies 3L and 3R is to be fitted. The lead protrusion 20L is provided at a position where it does not interfere with the protrusion 31L of the switch body 3L, and the protrusion 202 (notch) is cut out corresponding to the protrusion 31L. Further, the lead protrusion 20R is provided at a position where it does not interfere with the protrusion 31R of the switch body 3R, and the protrusion 202 is cut out corresponding to the protrusion 31R.

  As shown in FIGS. 1 and 2, the switch socket 2 </ b> L has leads 20 a and 20 b embedded in the main body portion 24. The main body 24 of the switch socket 2L exposes a connector insertion slot 21 into which a connector (not shown) is inserted, a through hole 22 used when trimming the lead frame 20, and a contact sliding portion 200 of the leads 20a and 20b. And an exposure window 23 provided for the purpose. The main body 24 of the switch socket 2L can be made of an insulating material such as epoxy resin, PBT, or PPS.

  Further, the leads 20a and 20b include a contact sliding portion 200 that contacts the sliding contact 32 of the switch body 3L, and a terminal 201 that is exposed from the connector insertion port 21 and is electrically connected to a connector terminal. For the leads 20a and 20b, a conductive material such as a copper alloy or an iron alloy can be used.

  Note that the switch socket 2R has the same configuration as the switch socket 2L except that the lead projection 20R is opposite to the lead projection 20L, and the description thereof is omitted.

  As shown in FIGS. 1 and 3, the switch body 3 </ b> L includes a switch socket insertion opening 30 </ b> L, a protrusion 31 </ b> L, and a sliding contact 32. The switch socket insertion opening 30L is molded according to the outer shape of the switch socket 2L in front view, and the protrusion 31L is molded according to the trimmed lead protrusion. The body 24 of the switch body 3L can be made of a material such as epoxy resin, PBT, or PPS.

  The sliding contact 32 is connected to the connecting portion 320, and the connecting portion 320 is connected to the paddle lever. The sliding contact 32 can be made of a conductive material such as a copper alloy or an iron alloy. Moreover, the connection part 320 can use materials, such as an epoxy resin, PBT, and PPS, similarly to the switch body 3L.

  4 (a) and 4 (b) are schematic diagrams showing the on / off state of the switch.

  By operating the paddle lever, the connecting portion 320 moves up and down in the drawing, and the sliding contact 32 moves in the m direction in accordance with the movement of the connecting portion 320. As shown in FIG. 4A, when the sliding contact 32 moves to the upper end side of the drawing, it contacts the contact sliding portion 200 of the leads 20a and 20b of the switch socket 2L to electrically connect the two terminals 201. Switch on. Further, as shown in FIG. 4B, when moving to the lower end side of the drawing, the switch 20 is electrically disconnected between the two terminals 201 without contacting the contact sliding portions 200 of the leads 20a and 20b of the switch socket 2L. Turn off.

  Note that the switch body 3R has only the protrusion 31R opposite to the protrusion 31L, and the other configuration is the same as that of the switch body 3L, and thus the description thereof is omitted.

(Switch manufacturing method)
Below, the manufacturing method of switch 1L is demonstrated, referring FIGS. 1-5. FIGS. 5A to 5C are diagrams for explaining a method of manufacturing the switch socket 2L of the switch 1L. Since the same applies to the switch 1R, the switch 1L will be described as a representative.

  First, as shown in FIG. 5A, an H-shaped lead frame 20 common to 2L and 2R is prepared, the lower end side is bent so as to become a terminal 201, and the entire lead frame 20 is L-shaped in a side view. To.

  Next, as shown in FIG. 5B, an insulating resin such as epoxy resin, PBT, PPS, or the like is poured using a common mold for 2L and 2R to insert-mold the switch socket 2L.

  Next, as shown in FIG. 5C, the protruding portion 202 of the lead frame 20 is trimmed into leads 20a and 20b, and the connecting portion 203 is trimmed. In the case of the switch socket 2R, the projecting portion opposite to the projecting portion 202 is trimmed.

  The switch bodies 3L and 3R are molded by pouring resin or the like using different molds.

  Next, the switch socket 2L is fitted into the switch socket insertion opening 30L of the switch body 3L, and the engagement claw and the engagement groove (not shown) provided in each are engaged to be fixed to each other.

(Effects of the first embodiment)
According to the first embodiment described above, since the trimming portions of the lead frame 20 embedded in the main body 24 of the switch sockets 2L and 2R are respectively changed, the switch assembled to the switch bodies 3L and 3R having a plurality of shapes. A mold used for molding the main body 24 of the sockets 2L and 2R can be made common, and further, a process for processing the main body 24 as in the prior art is unnecessary, and thus an increase in the number of processes is suppressed. be able to.

  In addition, the external shape of the switch sockets 2L and 2R and the shape of the switch socket insertion openings 30L and 30R in the front view are square, but are not limited to this, and may be any polygonal shape, It may be a combination of curves. Further, the trimming shape of the protruding portion 202 and the shapes of the protrusions 31L and 31R in the front view are also shown as a quadrangular shape, but are not limited to this, and may be an arbitrary polygonal shape, a circle or a curve. It may be combined.

  Further, the switch socket insertion openings 30L, 30R may have ribs instead of the protrusions 31L, 31R. In that case, the switch sockets 2L, 2R have lead protrusions 20L, 20R corresponding to the ribs. And

[Second Embodiment]
(Switch socket manufacturing method)
Below, the manufacturing method of the switch socket which concerns on 2nd Embodiment is demonstrated, referring FIG. FIGS. 6A to 6C are views for explaining a method for manufacturing a switch socket according to the second embodiment.

  First, as shown in FIG. 6A, a U-shaped lead frame 25 common to 2L ′ and 2R ′ is prepared, the lower end serving as the terminal 251 is bent, and the entire lead frame 25 is L-shaped in a side view. Make a mold.

  Next, as shown in FIG. 5B, a resin or the like is poured into the main body 26 by insert molding using a mold common to 2L 'and 2R'.

  Next, as shown in FIG. 5C, the left side of the connecting portion 252 of the lead frame 25 is trimmed to form the leads 25a and 20b, and the lead protrusion 27L of the lead 25b is left. In the case of the switch socket 2R, the right side of the connecting portion 252 is trimmed to leave the lead protrusion 27R of the lead 25a.

  The switch bodies 3L and 3R are molded by pouring resin or the like using different molds.

  Next, the switch socket 2L 'is fitted into the switch socket insertion opening 30L of the switch body 3L, and the engagement claw and the engagement groove (not shown) provided in each are engaged to be fixed to each other.

(Effect of the second embodiment)
According to the second embodiment described above, in addition to the effects of the first embodiment, trimming of the lead frame 25 can be reduced to one place. Moreover, since it is not necessary to provide a through-hole in the main-body part 26, a structure can be simplified.

[Modification]
As described above, the typical configuration example of the switch 1 according to the present invention has been described with reference to each of the above-described embodiments and illustrated examples.
(1) The switch 1 can be applied not only to a vehicle-mounted device but also to various electronic / electrical device switches.
(2) The switch 1 can appropriately select the number of arrangement, the arrangement position, the arrangement form, and the like according to the purpose of use.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from or adjusting the technical idea of the present invention.

1L Switch 1R Switch 2L Switch socket 2R Switch socket 3L Switch body 3R Switch body 20 Lead frame 20a Lead 20b Lead 20L Lead projection 20R Lead projection 21 Connector insertion port 22 Through hole 23 Exposed window 24 Body 25 Lead frame 25a Lead 25b Lead 26 Body 30L Switch socket insertion port 30R Switch socket insertion port 31L Protrusion 31R Protrusion 32 Sliding contact 200 Contact sliding portion 201 Terminal 202 Protruding portion 203 Connecting portion 251 Terminal 252 Connecting portion 320 Connecting portion

Claims (5)

A plurality of switch bodies each provided with an insertion port provided with an identification portion of a different shape;
A switch comprising a main body portion molded in a common shape to be fitted into the insertion port of the switch body, and a lead having a notch portion embedded in the main body portion and notched corresponding to the identification portion. A switch having a socket.   2. The switch according to claim 1, wherein the notch portion of the lead is notched during trimming.   2. The switch according to claim 1, wherein the cutout portion of the lead is cut out simultaneously with trimming of a connecting portion of the lead frame. Using the mold, part of the lead frame is embedded, and the body of the switch socket is insert molded,
And a step of trimming a portion of the lead frame projecting from the main body in accordance with the shape of the identification part of the switch body into which the switch socket is inserted.   5. The method of manufacturing a switch according to claim 4, wherein the trimming step is performed simultaneously with the step of trimming the connecting portion of the lead frame.

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