JPH0664333U - Switch device - Google Patents

Abstract

(57) [Summary] [Purpose] To make assembly work simple and easy. A positioning protrusion 28 is provided on the fixed frame 16, and the protrusion 28 is inserted into a positioning hole 30 of the printed circuit board 20 during assembly. Inclined portion 28a at the tip of the positioning protrusion 28
Since the mounting position is regulated by, the mounting can be done accurately and quickly.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch device mounted on a printed circuit board, and more particularly to means for appropriately positioning the switch device on the printed circuit board.

[0002]

[Prior art]

 Conventionally, a switch device having a plurality of individual switches has been used. The switch device shown in FIG. 8 is an example thereof. This device is, for example, the switch device disclosed in Japanese Utility Model Publication No. 2-11696, and a plurality of switch units 10 are obtained by inserting the operating rod 12 of the switch unit 10 into the moving cam plate 14 and the fixed frame 16. It is a configuration that incorporates.

A switch device incorporating a plurality of individual switches is useful and widely used, for example, as a panel switch mounted in a vehicle regardless of whether or not it has a cam mechanism as shown in FIG. . As shown in FIG. 9, since a plurality of operation buttons 18 are generally provided on the front surface of the panel switch, a plurality of switches can be operated by using a switch device incorporating a plurality of switches. A device that gives a signal to the control circuit in response to each operation of the button 18 can be manufactured easily and efficiently. Moreover, automation of manufacturing is easy.

By the way, in order to fix such a switch device and electrically connect it to a control circuit or the like, a switch device in which a plurality of switches are individually incorporated is usually used as a printed board (hereinafter referred to as a P board). I said). For example, as shown in FIG. 10, a switch device 22 in which a plurality of single switches 10 are incorporated is fixed on a P plate 20. When fixing the switch device 22 on the P plate 20, normally, the terminal 24 of the single switch 10 is inserted into the terminal hole 26 formed on the P plate 20 (see FIG. 11), and then the terminal 24 and the P plate are inserted. The circuit wiring (not shown) on 20 is soldered.

[0005]

[Problems to be solved by the device]

 However, when a switch device having a structure in which a plurality of individual switches are incorporated is mounted and fixed on the P plate, it is not easy to perform the work quickly. In other words, when inserting the terminals of each individual switch into the terminal holes on the P plate, it is difficult to accurately position the switch device with respect to the P plate because the number of individual switches is large. Further, as shown in FIG. 12, the terminal hole 26 is, for example, a circle having a diameter of 0.85 mm, and the terminal 16 is a rectangle of 0.6 × 0.35 mm (diagonal length = 0.69 mm). The difference in size is 0.85 mm-0.69 mm = 0.11 mm. For this reason, especially when the switch device has an irregular shape (L-shape instead of a straight line), automation is difficult, and it is necessary to rely on human labor, which requires a large number of man-hours.

The present invention has been made to solve the above problems, and is more accurate and quicker even when the number of terminals of the switch device is large and the dimensional margin is relatively small. In addition, the switch device can be attached to the P board, and even if the switch device has a different shape, automation is possible.

[0007]

[Means for Solving the Problems]

 In order to achieve such an object, the present invention has a positioning means having a pointed tip protruding from the switch terminal lead-out surface and inserted into a positioning hole on the P plate, so that the switch terminal is mounted on the P plate. When it is inserted into the terminal hole of, the positioning means is inserted into the positioning hole on the P plate to perform positioning with respect to the P plate.

[0008]

[Action]

 In the present invention, the switch device is positioned with respect to the P plate by inserting the positioning means projecting from the switch terminal drawing surface into the positioning hole on the P plate. At this time, since the tip of the positioning means is pointed, even if the mounting direction of the switch device is slightly deviated, this deviation is corrected. That is, when the switch device is further assembled with the tip of the positioning means in contact with the edge of the positioning hole, the inclination corrects the mounting direction of the switch device. As described above, since the assembly of the switch device is restricted by the inclination of the tip of the positioning means, the assembly work is facilitated.

[0009]

【Example】

 Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. The same components as those of the conventional example shown in FIGS. 8 to 12 are designated by the same reference numerals and the description thereof will be omitted.

1 to 3 show the configuration of a switch device according to an embodiment of the present invention. In particular, FIG. 1 is a perspective view, FIG. 2 is a longitudinal side view, and FIG. 3 is a lateral side view.

As shown in these drawings, the present embodiment includes a fixing frame 16 that functions as a switch cover that covers the switch terminals 24 and that fixes the single switch 10. The fixed frame 16 has an L-shape, and five individual switches 10 are fixed to the long side of the L-shape and one to the end of the short side. The first feature of this embodiment is that a positioning projection 28 having a tapered tip is provided in the lower portion of the fixed frame 16 in the same direction as the terminal 24, and the positioning projection 28 is provided with a positioning hole 30 (see FIGS. (See 6)) to achieve quick and simple positioning. The second feature is that the positioning protrusion 28 is made longer than the terminal 24 so that the positioning can be performed more reliably. The third feature is that a reference hole 32 for chucking is provided on the side surface of the fixed frame 16 so that the switch device 34 of the present embodiment can be mounted and fixed to the P-plate 20 by an automatic machine.

FIG. 4 shows the configuration of the P plate 20 to which the switch device 34 according to this embodiment is attached and fixed. In this figure, the switch device 34 is mounted in a posture as shown by the alternate long and short dash line. A large number and a plurality of types of electronic components are mounted on the P plate 20, and a positioning hole 30 is formed in addition to the terminal hole 26. The positioning protrusion 28 provided so as to correspond to the hole 30 is inserted into the hole 30 during mounting.

5 to 7 show the flow of the mounting work in this embodiment. When the switch device 34 of the present embodiment is attached to the P plate 20, first, rough positioning is performed as shown in FIG. At this time, the terminal 24 faces the terminal hole 26 and the positioning protrusion 28 faces the positioning hole 30.

The positioning protrusion 28 is provided such that the tip of the switch 10 is projected from the terminal 24 in the state where the switch 10 is incorporated in the fixed frame 16. The tip of the positioning protrusion 28 has a sharp shape, and thus has an inclined portion 28a. When the switch device 34 is assembled toward the P plate 20 from the state shown in FIG. 5, the assembly position in the CD direction in the figure is regulated by the inclined portion 28a, and the assembly position is adjusted in the correct direction in the CD direction as shown in FIG. Is done. The relationship between the length of the terminal 24 and the length of the positioning protrusion 28 is designed so that the tip thereof reaches the terminal hole 26 at least at this point.

When the assembly is further advanced, the state shown in FIG. 7 is obtained at a certain point. That is, the terminal 26 of the single switch 10 is completely inserted. One of the positioning protrusions 28 has a constricted portion 28b, so that a gap t is formed according to the difference between the diameter of the constricted portion 28a and the diameter of the hole 30.

As described above, in this embodiment, the mounting position of the switch device 34 to the P plate 20 is regulated by the positioning protrusion 28. That is, by inserting the positioning protrusions 28 corresponding to the positions in the AB direction in FIG. 4 into the holes 30 long in the AB direction and the positions in the CD direction into the long holes 30 in the CD direction, respectively, it is possible to easily locate the positions accurately. Installation can be done. This is because the tip of the positioning protrusion 28 is provided with an inclined portion 28a along the positioning direction to be regulated.

Further, in this embodiment, since the positioning protrusion 28 is longer than the terminal 24, the positioning protrusion 28 can effectively guide the terminal 24 to an accurate position. Further, the gap t generated by the constricted portion 28b can absorb the strain generated at the time of soldering due to the difference in contraction rate between the P plate 20 and the terminal 26, and further improves workability when manually mounting. .

In addition, by providing the positioning protrusion 28, even a switch device 34 having an irregular shape such as an L shape can be automated. That is, since there is no need for manual adjustment, the automatic assembly robot can realize automation, such as holding the switch device 34 with the chucking reference hole 32 as a reference and assembling it to the P plate 20.

The present invention is not limited to the shape of the fixed frame, the number of single switches, the number of protrusions of the positioning protrusions, and the like.

[0020]

[Effect of device]

 As described above, according to the present invention, by positioning the positioning means projecting from the switch terminal lead-out surface and having a pointed tip into the positioning hole on the P-plate, the switch device is mounted on the P-plate. Since the positioning is performed, even if the mounting direction of the switch device is slightly displaced, this displacement is corrected, and the assembly work can be performed quickly and easily.

[Brief description of drawings]

FIG. 1 is a perspective view showing the configuration of a switch device according to an embodiment of the present invention.

FIG. 2 is a longitudinal side view of the present embodiment.

FIG. 3 is a lateral side view of the present embodiment.

FIG. 4 is a plan view showing the shape of a printed circuit board to which the switch device of this embodiment is attached.

FIG. 5 is a diagram showing an operation of attaching the switch device of the present embodiment to a printed board.

FIG. 6 is a diagram showing an operation of mounting the switch device of the present embodiment on a printed board.

FIG. 7 is a diagram showing an operation of attaching the switch device of the present embodiment to a printed board.

FIG. 8 is a diagram showing a known example of a switch device.

FIG. 9 is an external view of a panel switch.

FIG. 10 is a diagram showing a state in which a switch device according to a conventional example is attached to a printed circuit board.

FIG. 11 is a diagram showing a relationship between terminals and holes.

FIG. 12 is a diagram showing a relationship between terminals and holes.

[Explanation of symbols]

 10 Switch Single Item 16 Fixed Frame 20 Printed Circuit Board 24 Terminal 26 Terminal Hole 28 Positioning Protrusion 28a Slope 28b Constriction 30 Positioning Hole 32 Chucking Reference Hole 34 Switch Device t Gap

Claims (1)

[Scope of utility model registration request] 1. A switch device having a switch terminal which is inserted into a terminal hole on a printed circuit board, wherein a positioning means having a pointed tip protruding from a switch terminal drawing surface and inserted into a positioning hole on the printed circuit board is provided. Then, when the switch terminal is inserted into the terminal hole on the board, the positioning means is inserted into the positioning hole on the printed board to perform positioning with respect to the printed board.