JPH0735247Y2 - Switch device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a switch device applied to a power window regulator, a power sunroof, etc. of an automobile.

(Prior Art) In this type of switch device, a case is composed of an insulator and a switch body, a fixed contact is provided to the insulator, and a movable contact that comes in contact with and separates from the fixed contact is movably provided on the insulator. ing. Thereby, the fixed contact and the movable contact are directly incorporated in the case.

(Problems to be Solved by the Invention) In the above conventional configuration, when manufacturing various types of switch devices in which the outer shapes of the cases are slightly different from each other, the total production quantity of one type of switch device, that is, a so-called lot is relatively small. Become. By the way, when manufacturing a thing, it is desired to perform automatic assembly in order to improve manufacturability. However, because the lot is small as described above,
There is a drawback that the effect of automatic assembly is reduced and automatic assembly cannot be adopted. Further, in the above switch device, for example, when a light emitting diode is mounted as a light emitting element for night illumination, work for fixing the printed wiring board on which the light emitting diode is mounted to one side part of the case is further performed. There is a problem in that mounting workability is poor because the work of electrically connecting the protruding terminals must be performed.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a switch device which can adopt automatic assembly, can improve the manufacturability, and can improve the mounting workability when mounting a light emitting element.

[Means for Solving the Problem] (Means for Solving the Problems) A switch device of the present invention includes an outer case, a fixed contact housed in the outer case, and a movable contact for contacting with and separating from the fixed contact. A switch unit that is built in and has a terminal projecting from one surface of the unit case is provided, and the switch unit has a fitting hole into which the terminal is fitted and fixed. The terminal is fitted and fixed to the one surface of the switch unit. It is characterized in that a printed wiring board electrically connected to the terminals is provided, and a light emitting element attached to the printed wiring board is provided.

(Operation) According to the above means, the fixed contact and the movable contact that comes in contact with and separates from the fixed contact are incorporated in the unit case to form the switch unit, and the switch unit is housed in the outer case. The switch unit can be a common component for many types of switch devices in which the outer shape of the outer case is slightly different. Therefore, even if the lot of one type of switch device is small, the lot of the switch unit, which is a common component, is large. Therefore, when manufacturing the switch unit, automatic assembly can be adopted. Also, when mounting the light emitting element to the switch unit, by fitting the terminal of the switch unit into the fitting hole of the printed wiring board,
A printed wiring board is attached to one surface of the switch unit and electrically connected to the terminals. Therefore, the fixing of the printed wiring board and the electrical connection can be performed in one operation, and the number of operation steps can be reduced.

(Embodiment) An embodiment in which the present invention is applied to a switch device for a power window regulator of an automobile will be described below with reference to the drawings.

First, in FIG. 2, the outer case 1 is composed of a lower case 2 and an upper case 3 fitted and fixed to the lower case 2. In the outer case 1, the switch unit 4
Is housed. The upper portion of the switch unit 4 projects upward from an opening 3a formed in the upper surface of the upper case 3. As shown in FIG. 1, the switch unit 4 has a unit case 5 having a substantially rectangular shape as a whole.
It is configured by incorporating a fixed contact and a movable contact (neither is shown) that comes in contact with or separates from the fixed contact. Here, for example, three terminals 7, 8 and 9 are provided on a left surface portion 6 in FIG. 1 which is one surface portion of the unit case 5 so as to project. In this case, terminals 7 and 8 are ground terminals, and terminal 9 is a power supply terminal (for example, DC power supply voltage 12V). Further, on the lower surface portion 10 of the unit case 5, for example, six terminals 11 (only four are shown) are provided in a protruding manner. Support wall portions 13 and 14 are provided at both central ends of the upper surface portion 12 of the unit case 5 so as to project upward, and these support wall portions 13 and 14 are provided.
A projecting portion 16 having an accommodating portion 15 located therebetween is provided so as to project. Shaft portions 14a (only one of which is shown) are provided on the outer surface portions of the support wall portions 13 and 14, respectively. Unit case 5
On both sides of the convex portion 16 in, an operator 17 (only one of which is shown) for bringing the movable contact into and out of contact with the fixed contact is provided so as to be vertically movable. The support walls 13 and 14, the protrusion 16 and the operating element 17 described above project upward from the opening 3a of the upper case 3. Then, as shown in FIGS. 2 and 3, the operation knob 18 is attached to the support walls 13 and 14 of the unit case 5 by the shaft portion 13.
It is mounted rotatably around a and 14a as fulcrums. In this case, turn the operation knob 18 counterclockwise in Fig. 2.
When it is rotated 14 degrees, the manipulator 17 is moved downward, and a "DOWN" signal for lowering the window is output. Further, when the operation knob 18 is rotated 14 degrees in the clockwise direction in FIG. 2, the operation element arranged on the opposite side of the operation element 17 with the convex portion 16 interposed therebetween is moved downward to raise the window. A "UP" signal is output.

Now, on the left side 6 side of the switch unit 4 in FIG. 2,
A printed wiring board 19 is arranged. As shown in FIG. 1, for example, a light emitting diode 20 as a light emitting element is attached to the right surface of the printed wiring board 19 by soldering. On the right side of the printed wiring board 19, a resistor
21 and diode 22 are mounted. Here, the printed wiring board 19 has terminals 7 of the switch unit 4.
Corresponding to .about.9, three fitting holes 19a to 19c into which these terminals 7 to 9 are fitted and fixed are formed. These fitting holes 19a
The terminals 7 to 9 of the switch unit 4 are fitted into the terminals 19c to 19c and fixed by, for example, soldering. As a result,
The printed wiring board 19 is provided on the left side 6 of the switch unit 4.
And is electrically connected to the terminals 7 to 9. In this case, a conductor pattern 23 is formed on the printed wiring board 19, which constitutes a series circuit of the light emitting diode 20, the resistor 21 and the diode 22, as shown in FIG.

As shown in FIG. 2, an accommodating portion 3b for accommodating the light emitting diode 20 is provided at the upper left portion of the upper case 3 so as to project therefrom. A window portion 18a for transmitting light corresponding to the light emitting diode 20 is provided on the left portion of the operation knob 18 in FIG.
Is provided. The window 18a is provided with, for example, a semi-transparent member.

According to this embodiment having such a configuration, the unit case 5
Since the switch unit 4 is configured by incorporating the fixed contact and the movable contact that comes into contact with and separates from the fixed contact, and the switch unit 4 is housed in the outer case 1, the outer shape of the outer case 1 is slightly different. The switch unit 4 can be used as a common component when manufacturing a large number of different types of switch devices. Therefore, even if the lot of one type of switch device is small, the lot of the switch unit 4 that is a common component is large. Therefore, when the switch unit 4 is manufactured, automatic assembly can be adopted, and the manufacturability can be improved and the manufacturing cost can be reduced. And in the switch device having such a configuration,
When the light emitting diode 20 is attached to the switch unit 4, the printed wiring board 19 is fixed to the left side portion 6 of the switch unit 4 by fitting and fixing the terminals 7 to 9 of the switch unit 4 into the fitting holes 19a to 19c of the printed wiring board 19. Mounted and electrically connected to terminals 7-9. Therefore,
The printed wiring board 19 can be fixed and electrically connected in one operation, and the number of operation steps can be reduced. Also,
In the above-mentioned embodiment, since the light emitting diode 20 is attached to the switch unit 4, the switch unit 4 can be shared by both the switch device having the light emitting diode 20 and the switch device having the light emitting diode 20. Can be made bigger.

Although the printed wiring board 19 is attached to the left side portion 6 of the switch unit 4 in the above embodiment, it may be attached to the other side portion of the switch unit instead.

[Advantages of the Invention] As is apparent from the above description, the present invention accommodates the switch unit in the outer case and inserts and fixes the terminals of the switch unit into the insertion holes of the printed wiring board on which the light emitting element is mounted. As a result, the printed wiring board is attached to the switch unit and electrically connected to the terminals, so automatic assembly can be adopted and productivity can be improved. Moreover, the mounting work when mounting the light emitting element It has an excellent effect of improving the property.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is an exploded perspective view of a switch unit and a printed wiring board, FIG. 2 is a partially cutaway side view of the whole, and FIG. 3 is a top view of the whole. Four
The figure is an electric circuit diagram. In the drawings, 1 is an outer case, 4 is a switch unit, 5 is a unit case, 6 is a left surface portion (one surface portion), 7 to 9 are terminals,
Reference numeral 19 is a printed wiring board, 19a to 19c are fitting holes, and 20 is a light emitting diode (light emitting element).

Claims (1)

[Scope of utility model registration request] 1. A switch unit having an outer case, a fixed contact housed in the outer case, a movable contact for contacting with and separating from the fixed contact in the unit case, and a terminal protruding from one surface of the unit case. A printed wiring board which has a fitting hole into which a terminal of the switch unit is fitted and fixed, and which is attached to one surface of the switch unit by fitting and fixing the terminal and electrically connected to the terminal;
A switch device comprising a light emitting element mounted on the printed wiring board.