JPH09245555A - Switch device and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a switch device in which the number of contact points and terminals in an insulator can be reduced. SOLUTION: A circuit board 110 is arranged so that a back face to which the connection wires of circuit components are connected and fixed becomes a top face. Connection wires 139 extending from the outside connection terminals 134 of a connector 111 are inserted through from the bottom face of a circuit board 110, and are connected to connection points B by soldering or the like. Thereby, the circuit board 110 and the connector 112 are mutually connected by direct connection wires. An insulator 108 is arranged on the circuit board 110 and a lower cover 116. A connection wire 138 extending from one of the external terminal is connected to a connection point A on the upper face of the insulator 108.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch device including an insulator, a circuit board and a connector, and a method for manufacturing the switch device.

[0002]

2. Description of the Related Art A power window switch device provided near a driver's seat of a vehicle (for example, a door on the driver's seat side) has conventionally been constructed, for example, as shown in FIG. FIG. 3 shows a conventional power window switch device 20.
It is sectional drawing which shows the vertical cross section of 0.

As shown in FIG. 3, an upper cover 214 and a lower cover 216 are fitted together to form a switch box. A plurality of switch knobs 2 are provided on the upper surface of the upper cover 214.
02, 204, and 206 are rotatably attached about a predetermined shaft (not shown). Lower cover 216
A connector 212 including a plurality of external connection terminals 234 and 236 is provided in the lower part of the.

Inside the switch box, the movable contact 2 is provided below each of the switch knobs 202, 204 and 206.
18, 222 are attached. Below the upper cover 214, an insulator 208 having a plurality of terminals arranged on the surface or inside is provided. Further, the insulator 208 just below the movable contacts 218 and 222 is provided.
Fixed contacts 220 and 224 are fixed to the upper surface of the.

Below the insulator 208, a circuit board 210 on which circuit components such as a relay 226 are mounted is arranged. The circuit board 210 is a single-sided board,
The circuit component is mounted only on the upper surface, and the connection line of the circuit component is connected and fixed to the lower surface by soldering or the like.

The insulator 208 and the circuit board 210 are connected to each other by connecting wires 228, 2 extending from the insulator 208.
30, 232 and the like are connected to each other by being connected on the lower surface of the circuit board 210 by soldering or the like. In addition, the connector 212 and the insulator 20
Similarly, the connection wires 238 and 240 extending from the external connection terminals 234 and 236 are also connected to each other at 8 at the connection point A ′ on the upper surface of the insulator 208 by soldering or the like. In addition,
Conventionally, the circuit board 210 and the connector 212 are not directly connected by a connecting line.

Here, the conventional switching device 200
The manufacturing method of will be briefly described. First, the circuit board 210 is arranged under the insulator 208, the connection lines 228, 230, and 232 from the insulator 208 are inserted into the circuit board 210 from the upper surface, and the lower surface of the circuit board 210 is connected by soldering or the like. Next, by incorporating the insulator 208 and the circuit board 210 on the lower cover 216,
Connection lines 238, 24 from the external connection terminals 234, 236
0 is inserted into the insulator 208 from the lower surface, and the upper surface of the insulator 208 is connected by soldering or the like. Further, after incorporating the movable contacts 218, 222, etc., the upper cover 214 to which the switch knobs 202, 204, 206, etc. are attached is covered on the lower cover 216 to join the upper cover 214 and the lower cover 216.

[0008]

FIG. 4 shows an insulator 208 and a circuit board 2 in the switch device 200 of FIG.
10 is a circuit diagram for explaining a connection relationship between 10 and connectors 212. FIG. 4, the same components as those in FIG. 3 are designated by the same reference numerals. In addition, the auto switch 242 is a switch for manually or automatically opening and closing the windows on the driver's side of the vehicle, and the manual switches 244, 246 and 248 manually open and close the windows on both the passenger side and the rear seat side. The power switch 250 is a switch for locking the opening and closing of windows on both the passenger seat side and the rear seat side. Of these, the auto switch 242 corresponds to the switch knob 204 of FIG. 3, the manual switch 244 corresponds to the switch knob 206, the power switch 250 corresponds to the switch knob 202, and each switch is switched by operating the corresponding switch knob. To be Further, M is a driving motor for opening and closing the window, and V1 and V2 are power supply voltages, respectively.

As shown in FIG. 4, there are a total of 11 external connection terminals of the connector 212, and these external connection terminals are respectively connected to a power source, a ground or an external connector (not shown) inserted into the connector 212. Connected to the motor.

As described above, the conventional switching device 20
In No. 0, the circuit board 210 and the connector 212 are not connected by the direct connection line. Therefore, in the insulator 208, there are problems that the number of connection points by soldering and the like increases and the number of terminals also increases.

That is, since the circuit board 210 and the connector 212 are not directly connected, the electrical exchange between the circuit board 210 and the connector 212 is performed via the insulator 208 as shown in FIG. There must be. Therefore, the insulator 208 has a
It was necessary to provide terminals for electrical communication between the circuit board 210 and the connector 212 between b, cd, ef, and gh. Also, in order to connect the connection wire from the external connection terminal to the terminal between ef and gh,
It was also necessary to provide contact points for A10 and A11.

Therefore, all the 11 connecting wires extending from the external connecting terminals of the connector 212 are all connected to the insulator 20.
Since the wires are connected to No. 8, there are a total of 11 connection points in the insulator 208, A1 to A11. On the other hand, there are a total of seven connecting lines extending from the insulator 208, and all of them are connected to the circuit board 210.
There are seven connection points in B1 to B7. Therefore, there are a total of 18 connection points in the switch device 200. As described above, when the number of connection points is large, there is a problem in that when the switch device 200 is manufactured, the number of connection points is large and the time required for the work is long.

The reason why the circuit board 210 and the connector 212 cannot be directly connected to each other by a direct connecting line is as follows. As shown in FIG. 3, the connector 212 is normally located below the circuit board 210, so that the connection wires extending from the external connection terminals 234 and 236 are connected to the circuit board 21.
To connect to 0, it is preferable to insert a connecting wire into the circuit board 210 from the lower surface and connect to the upper surface of the circuit board 210. However, as described above, the circuit board 210 is a single-sided board, and the lead wires and other connection wires of the circuit components are inserted from the upper surface of the circuit board 210 and fixedly connected at the lower surface, so that the external connection terminals 234, 236 It is not possible to connect only the connection line of above on the upper surface.

Further, the connection lines from the external connection terminals 234 and 236 are inserted into the circuit board 210 from the upper surface, and the circuit board 2 is inserted.
Although it is conceivable that wiring is performed on the lower surface of the circuit board 10, the circuit board 210 is first arranged below the insulator 208 when the switch device 200 is manufactured.
Therefore, in order to insert the connection wires from the external connection terminals 234 and 236 into the circuit board 210 from the upper surface and connect the connection wires on the lower surface, it is difficult for the insulator 208 to be inserted in the way.

Accordingly, an object of the present invention is to solve the above-mentioned problems of the prior art and to provide a switch device capable of reducing the number of contact points and terminals in an insulator.

[0016]

In order to achieve at least a part of the above-mentioned object, the first invention is an insulator provided with electric wiring and fixed to the upper surface of the insulator. A fixed contact electrically connected to the electric wiring, a switch knob that moves by an applied external force, and a shape or position of the switch knob that changes in accordance with the movement of the switch knob, so that the fixed contact is electrically connected to the fixed contact. A movable contact for connection / disconnection and a plurality of external connection terminals that are arranged below the insulator and have a plurality of external connection terminals, and a connection line connected to at least one of the external connection terminals is the insulator. A connector electrically connected to the electrical wiring and a circuit component mounted on the first surface,
A switch device comprising: a second surface which is a back surface of the first surface; and a circuit board to which connection lines of the circuit component are electrically connected and fixed, wherein the circuit board has the second surface. And a connection line connected to at least one of the external connection terminals is electrically connected to the second surface of the circuit board. .

As described above, according to the first aspect of the invention, the circuit board is arranged so that the second surface to which the connection line of the circuit component is connected and fixed is the upper surface. Therefore, it is possible to connect the other connection lines, for example, from the lower surface (that is, the first surface) of the circuit board to the upper surface (that is, the second surface). Therefore, in the first invention, the connection line from the external connection terminal is connected to the second surface, that is, the upper surface of the circuit board.

Therefore, in the first aspect of the present invention, the circuit board and the connector are directly connected by the connecting line, so that the insulator is used even when the circuit board and the connector are electrically exchanged. Can be done directly between the two without. Therefore, it is not necessary to provide the insulator with dedicated contact points or terminals in order to electrically communicate between the circuit board and the connector, and the number of contact points or terminals in the insulator can be reduced.

A second invention is a manufacturing method for manufacturing the switch device of the first invention, wherein (a) the circuit board is arranged so that the second surface is an upper surface, and The step of electrically connecting a connection line connected to at least one of the external connection terminals to the second surface of the circuit board; and (b) the connector after finishing the step (a). And electrically connecting the connection wire connected to at least one of the external connection terminals to the electric wiring of the insulator. .

As described above, according to the second aspect of the present invention, first, the circuit board is arranged with the second surface as the upper surface, the circuit board and the connector are connected, and then the insulator is arranged above the connector to arrange the insulator. And connect the connector.
Therefore, when connecting the circuit board and the connector (that is, when connecting the connection line from the external connection terminal to the circuit board), the insulator does not interfere.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below based on Examples. FIG. 1 is a sectional view showing a vertical section of a power window switch device 100 as an embodiment of the present invention.

As shown in FIG. 1, the upper cover 114 and the lower cover 116 are fitted together to form a switch box. On the upper surface of the upper cover 114, a plurality of switch knobs 102, 104, 106 are attached so as to be rotatable around a predetermined shaft (not shown). Lower cover 1
A plurality of external connection terminals 134, 1 are provided on the lower left side of 16.
A connector 112 with 35 is provided.

Inside the switch box, the movable contact 1 is provided below each of the switch knobs 102, 104 and 106.
18,122 are attached. Below the upper cover 114, an insulator 108 having a plurality of terminals arranged on the surface or inside is provided. Fixed contacts 120 and 124 are fixed to the upper surface of the insulator 108 just below the movable contacts 118 and 122, and these fixed contacts 120 and 124 are connected to the terminals of the insulator 108.

In addition, the insulator 108 and the connector 1
12 is connected as follows. That is, the connection line 137 extending from the insulator 208 is inserted into the lower cover 116 at the connector 112 portion, so that the connection line 137 forms the external connection terminal 135. Further, a connection wire 138 extending from one of the external connection terminals is inserted into the insulator 108 from the lower surface and is connected to the upper surface of the insulator 108 by soldering or the like.
That is, the connection line 138 is connected to the terminal of the insulator 108 at the connection point A of the insulator 108.

Below the insulator 108, a circuit board 110 on which circuit components such as a relay 126 are mounted is arranged. This circuit board 110 is a single-sided board,
The circuit component is mounted only on one surface, and the connecting wire of the circuit component is connected and fixed to the other surface which is the back surface thereof by soldering or the like.

Most of the above structure is the same as that of the conventional switch device 200 shown in FIG. However, the switch device 100 of the present embodiment is different from the conventional one in the following configuration. That is, in this embodiment, first, as shown in FIG. 1, the circuit board 110 is arranged so that the back surface on which the connection lines of the circuit components are connected and fixed is the top surface. For this reason, other connection lines can be inserted from the lower surface of the circuit board 110 and connected to the upper surface.

Therefore, in the present embodiment, the connection line 1 extending from the external connection terminal 134 of the connector 112 is further added.
39 is inserted from the lower surface of the circuit board 110 and is connected at the connection point B on the upper surface by soldering or the like. That is,
The circuit board 110 and the connector 112 are directly connected to each other by a connecting wire.

Incidentally, the insulator 108 and the circuit board 1
Although 10 is also connected by a connecting line, the connecting line is omitted in FIG.

FIG. 2 shows an insulator 108, a circuit board 110, and a connector 11 in the switch device 100 shown in FIG.
It is a circuit diagram for explaining the connection relation between two mutual. In FIG. 2, the same components as those in FIG. 1 are designated by the same reference numerals. In addition, the auto switch 142, the manual switches 144, 146, 148, and the power switch 150 are the switches 242, 2 shown in FIG. 4, respectively.
It is a switch similar to 44, 246, 248, and 250. As shown in FIG. 2, there are a total of 11 external connection terminals of the connector 112, and these external connection terminals are the connector 21.
Via an external connector (not shown) inserted in 2, they are connected to a power source, a ground or a motor, respectively.

As described above, in the switch device 100 of this embodiment, unlike the prior art, the circuit board 110 and the connector 112 are directly connected by the connecting line. That is, as shown in FIG. 2, among the connection lines from the external connection terminals of the connector 112, four connection lines are connection points B1 and B.
2, B6 and B7 are directly connected to the circuit board 110. Therefore, even when electrical exchange is performed between the circuit board 110 and the connector 112, as shown in FIG.
It can be done between both parties. Therefore, the terminals ab, cd, ef, and gh, which are conventionally provided in the insulator 208, and the contact points of A10 and A11 can be deleted in this embodiment.

That is, there are a total of 11 connecting wires extending from the external connecting terminals of the connector 212, and 9 of them are connected only to the insulator 108 (connecting point A3).
~ A9), two are insulator 108 and circuit board 11
It is connected to both 0 (connection points A1, A2, B1, B
2) The remaining two wires are connected only to the circuit board 110 (connection points B6 and B7). In addition, the insulator 108
There are only three connecting lines extending from the circuit board 110, all of which are connected to the circuit board 110 (connection points B3, B4, B).
5). Therefore, in the switch device 100 of the present embodiment, there are 16 connection points in total, which is less than the conventional two.

Actually, the manual switch 14
The four connecting wires extending from 4, 146 to the connector 112 are simply formed by inserting the connecting wires extending from the insulator 108 into the lower cover 116 and forming the external connecting terminals 135 like the connecting wire 137 shown in FIG. However, it is not connected by soldering or the like. Therefore, in practice, the connection points A6 to A9 do not exist, and the switch device 10
There are a total of 12 connection points at 0.

Next, the switch device 10 according to the present embodiment.
The manufacturing method of 0 will be briefly described. First, the circuit board 210 is arranged on the lower cover 116 such that the back surface (that is, the surface to which the connection wire of the circuit component is connected and fixed) is the top surface, and the connection wire 139 extending from the external connection terminal 134 of the connector 112. Is inserted into the circuit board 110 from the lower surface, and the upper surface of the circuit board 110 is connected by soldering or the like. Next, the insulator 1 is placed on the lower cover 116 and the circuit board 110.
08, the connecting wire 137 extending from the insulator 108 is inserted into the lower cover 116 to form the external connecting terminal 135 of the connector 112. Then, the connection wire 138 extending from the external connection terminal is inserted into the insulator 108 from the lower surface, and is connected by soldering or the like on the upper surface of the insulator 108. Furthermore, the movable contacts 118, 122
After incorporating the switch knobs 102, 104,
The upper cover 114 to which the 106 and the like are attached is put on the lower cover 116, and the upper cover 114 and the lower cover 11 are covered.
6 are joined.

As described above, in this embodiment, the back surface of the circuit board 110 is disposed as the upper surface, and the circuit board 110 is arranged.
And the connector 112 are connected first, and then the lower cover 11
6, the insulator 108 is incorporated on the circuit board 110, and the insulator 108 and the connector 112 are connected. Therefore, when connecting the connection line 139 extending from the external connection terminal 134 at the connection point B on the upper surface of the circuit board 110, there is no insulator 108, and therefore the connection can be performed without any trouble. Further, as described above, the time required for the work is shortened as the number of connection points is reduced.

The present invention is not limited to the above-described examples and embodiments, but can be implemented in various modes without departing from the scope of the invention.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a vertical cross section of a power window switch device 100 as one embodiment of the present invention.

2 is a circuit diagram for explaining a connection relationship among an insulator 108, a circuit board 110, and a connector 112 in the switch device 100 of FIG.

FIG. 3 is a sectional view showing a vertical section of a conventional power window switch device 200.

4 is a circuit diagram for explaining a connection relationship among an insulator 208, a circuit board 210, and a connector 212 in the switch device 200 of FIG.

[Explanation of symbols]

 100 ... Switch device 102,104,106 ... Switch knob 108 ... Insulator 110 ... Circuit board 112 ... Connector 114 ... Upper cover 116 ... Lower cover 118,122 ... Movable contact 120,124 ... Fixed contact 126 ... Relay 134,135 ... External Connection terminal 137, 138, 139 ... Connection line 142 ... Auto switch 144, 146, 148 ... Manual switch 150 ... Power switch 200 ... Switch device 202, 204, 206 ... Switch knob 208 ... Insulator 210 ... Circuit board 212 ... Connector 214 ... Upper cover 216 ... Lower cover 218, 222 ... Movable contact 220, 224 ... Fixed contact 226 ... Relay 228, 230, 232 ... Connection line 234, 236 ... External connection terminal 238, 240 ... Connection line 242 ... Autos Switch 244, 246, 248 ... Manual switch 250 ... Power switch A, A '... Connection location A1-A9 ... Connection location B ... Connection location B1-B7 ... Connection location

Claims (2)

[Claims] 1. An insulator provided with electric wiring, a fixed contact fixed to an upper surface of the insulator and electrically connected to the electric wiring, a switch knob moved by an applied external force, and a switch knob of the switch knob. It has a movable contact that changes its shape or position with the movement and electrically connects / disconnects with the fixed contact, and a movable contact that is arranged below the insulator and has a plurality of external connection terminals. A connector in which a connection line connected to at least one of the external connection terminals is electrically connected to the electric wiring of the insulator; and a circuit component mounted on a first surface, And a circuit board on which a connection line of the circuit component is electrically connected and fixed to a second surface which is a back surface of the circuit board, wherein the circuit board has the second surface as an upper surface. Together it is arranged so that, in at least one connected connection line, the switch device characterized in that it is electrically connected to the second surface of the circuit board of the external connection terminals. 2. The manufacturing method for manufacturing the switch device according to claim 1, further comprising: (a) arranging the circuit board such that the second surface is an upper surface, and the external connection terminal. Electrically connecting a connection wire connected to at least one of the two to the second surface of the circuit board, and (b) after the step (a) is completed, the connection wire is provided above the connector. Arranging the insulator, and electrically connecting a connection line connected to at least one of the external connection terminals to the electric wiring of the insulator.