JP2002324456A - Switch device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a switch device having two sets of C contact type switch, wherein the device can be used without short-circuiting a terminals each other in the outside, even when it is necessary to short-circuit a normally closed terminal with each other or even when it is not required to short-circuit it. SOLUTION: In a switch device 1, a connecting portion 18 between normally closed contacts (NC1 and NC2) of respective switches is installed in the state embedded in a base member 3 by insert molding or press fitting. In the base member 3, the connecting portion 18 is partially exposed to the outside and a recess 19 (or an opening) is formed so that the exposed portion can be cut easily (i.e., separatable).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to two sets of C-contact switches (so-called switches having NO contacts and NC contacts).
Relates to a switch device assembled to a base member.

[0002]

2. Description of the Related Art A switch device in which two sets of C-contact type switches are incorporated in one base member is widely used as a switch module constituting, for example, an operation input unit of various systems. For example, in a system such as a P / W (power window), a P / S (power seat), and a sunroof in a vehicle, in order to make the operation input unit small and inexpensive, a forward / reverse switching drive of a motor as an actuator is performed. It is indispensable to use the above switch device as a switch for this. In a vehicle circuit using the above-described switch device, for example, a normally open terminal (NO terminal) of two switches is normally used by short-circuiting each other, and a normally closed terminal (NC terminal) may be short-circuited. There is
In some cases, there is no short circuit. For example, in a P / W master switch unit (driver seat operation unit) or a P / S drive circuit,
The switch device used as a switch for forward / reverse switching driving of the motor is used with the normally closed terminal short-circuited. In the P / W sub-switch unit (operating unit for the front passenger seat or the rear seat), the switch device used as a switch for forward / reverse switching drive of the motor is used without short-circuiting the normally closed terminal. . For this reason, the switch device described above usually has a structure in which normally open terminals (NO terminals) are short-circuited internally, and the total number of terminals connected to the external circuit is a total of five (one NO terminal). , NC
(Two terminals and two common terminals). In addition, the normally closed terminals are used by being short-circuited as necessary in an external circuit.

[0003]

Therefore, the above-mentioned conventional switch device has the following problems. That is, when it is necessary to short-circuit the normally closed terminals of two switches, the connection point between the switch device (switch module) and the circuit board (including an insert base functioning as a circuit board) is two or more for the normally closed terminals. It becomes necessary, and the number of soldering and welding for connection increases,
This is disadvantageous in productivity and cost of a system using the switch device. In addition, since it is necessary to short-circuit the terminals on the circuit board, the degree of freedom of the wiring of the circuit pattern is reduced correspondingly, and the circuit board has to be multi-layered and large, and the necessity of adding a bus bar (conductive member) has arisen. Had disadvantages. If a switch device in which normally closed terminals are internally short-circuited and a switch device in which the normally-closed terminals are not short-circuited are prepared and these are selectively used,
The above problem can be solved. However, in this case, the number of types of switch devices increases from one type to two types, and the mass production effect is reduced by half and the cost of parts management is increased. In terms of performance. Therefore, the present invention
A switch device having two sets of C-contact type switches, which can be used even when it is necessary to short-circuit normally closed terminals and / or normally open terminals, and even when not short-circuited. It is an object of the present invention to provide a switch device which does not need to be short-circuited.

[0004]

The switch device according to the present invention is a switch device comprising two sets of C-contact type switches, wherein the switch is electrically connected to a common terminal when the common terminal is not operated. A normally closed terminal that is in a state,
A normally-open terminal that becomes conductive when the common terminal is activated, and the normally-closed terminals of each switch and / or the normally-open terminals are detachably connected to each other.

According to the present invention, the normally closed terminals and / or the normally open terminals of each switch are detachably connected to each other.
It can be used even when these terminals need to be short-circuited or not, and there is no need to externally short-circuit the terminals. This allows
The number of connection points (the number of locations where soldering or welding is performed) on the circuit board for mounting the switch device can be reduced, which is advantageous in terms of productivity and cost of a system using the switch device. In addition, since there is no need to short-circuit the terminals on the circuit board, the degree of freedom of the wiring of the circuit pattern is increased by that much, so that the circuit board has a single layer,
It can contribute to miniaturization and busbarlessness. Moreover, the type of the switch device may be the same regardless of whether the terminals are short-circuited or not, so that the above-described adverse effect due to the increase in types does not occur.

In a preferred aspect of the present invention, a connection portion between the normally closed terminals and / or between the normally open terminals is
By inserting a conductive member into the base member at the time of molding the resin base member, or by assembling a conductive member to the molded base member, the conductive member is provided in a state embedded in the base member, The base member has a configuration in which the connection portion is partially exposed to the outside, and a recess or an opening is formed so that the exposed portion can be easily cut. With such a configuration, the connection portion can be easily and firmly formed by insert molding or press-fitting into the base member, and moreover, a normal cutting tool (for example, a nipper)
Is inserted into the concave portion or the opening and the exposed portion is cut, whereby the operation of appropriately separating the connection portion becomes extremely easy. Further, even after disconnection, the holding state of the terminal can be sufficiently maintained.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of the switch device 1 of the present embodiment, and FIG.
Plan view showing the internal configuration and operation of the
1, the cover 10, and the normally open terminal 9 are removed). FIG. 3 is a diagram (a perspective view, a side view, and a rear view) showing an appearance of the switch device 1, and FIG.
FIG. 4 is a view for explaining characteristic portions (connection portions of normally closed terminals, etc.). As shown in FIG. 1, the switch device 1 includes a base member 3 in which a normally closed terminal (NC terminal) 2 is embedded so as to extend diagonally, a common terminal (C terminal) 4, a first rigid body 5, and a second rigid body 5. Two sets of subassemblies 8 each comprising a rigid body 6 and a spring 7 (biasing member) are arranged side by side at point-symmetric positions with respect to each other and mounted, and a common normally open terminal (NO terminal) 9 is attached to the center of the base member 3. After the cover 10 is mounted on the upper surface of the base member 3, the slider 11 (sliding member) is slidably mounted on the upper surface of the cover 10. In FIG. 1, reference numeral 12 denotes a dustproof film for closing an opening on the lower surface side of the base member 3, and is attached to the lower surface side of the base member 3 by adhesion or adhesion. Further, the sliding direction of the slider 11 (the left-right direction in FIG. 2) is sometimes simply referred to as the sliding direction in some cases.

As shown in FIG. 4 (c) or (d), both ends of the normally closed terminal 2 protrude from the end surface of the base member in the sliding direction, and the connection ends 2a (NC1, NC2 shown in FIG. 3 (c)). Terminal) and other parts (excluding the plate-like part described later)
Is a conductive terminal component member embedded inside the base member 3, and a conductive normally closed contact 13 (shown in FIG. 2) is provided on a plate-shaped portion arranged along the inner surface of the base member 3. Has been fixed. As shown in FIG. 4D, the normally closed terminal 2 is a common component (a component in which the NC1 and NC2 terminals are integrally configured) for the two sets of C-contact type switches. The central portion (the portion embedded in the base member 3) of the member constituting the normally closed terminal 2 corresponds to a connection portion 18 for connecting each connection end portion 2a (NC1, NC2 terminal) in a detachable manner. The thickness and width of the connecting portion 18 have appropriate dimensions that are easy to cut. 4 is provided on the bottom surface of the base member 3 in which the connecting portion 18 is embedded.
As shown in (c) or (d), the connecting portion 18 is partially exposed to the outside, and the exposed portion may be a concave portion 19 (or an opening penetrating the lower surface) so that the exposed portion can be easily cut. ) Is formed. This normally closed terminal 2
Is provided in a state of being partially embedded in the resin-made base member 3 by, for example, insert molding or press fitting. Further, here, the normally closed contact 13 is disposed facing the outside in the moving direction of a common contact 14 described later (see FIG. 2). Further, in FIG. 4D, the base member 3 is shown in a simplified manner in order to easily illustrate the connection portion 18.

The base member 3 is a box-shaped synthetic resin member as a whole, and the entire upper surface is open. A concave portion 3a into which the common terminal 4 fits is provided at a diagonal corner (a corner on the opposite side to the position of the normally closed terminal 2) of the base member 3 on the sliding direction end surface side. A concave portion 3b into which the normally open terminal 9 fits is provided at a central position on the side of the direction end surface. At the center of the outer surface of the base member 3 along the sliding direction, an engagement projection 3c for attaching the slider 11 is provided. A concave portion 3d for attaching the cover 10 is provided at a diagonal corner of the outer surface along the sliding direction of the base member 3, and an engaging convex portion 3e is provided in the concave portion 3d. Is provided. One end of the common terminal 4 protrudes from an end surface of the base member in the sliding direction (the position of the concave portion 3a), and a connection end 4a (FIG. 3).
(C1 and C2 terminals shown in (c)), and the other end side is a conductive terminal component disposed inside the base member 3. At the other end of the common terminal 4, an engagement hole (not shown) for connecting the first rigid body 5 and an engagement hole (not shown) for attaching the spring 7 are formed. Also,
The common terminal 4 is formed with a U-shaped section 4d that fits into the recess 3a of the base member 3. The U-shaped section 4d is fixed to the base member 3 with the U-shaped section 4d fitting into the recess 3a. Installed with.

[0010] The first rigid body 5 and the second rigid body 6 are connected to the common terminal 4.
Are connected to be able to swing sequentially along the same plane.
It is a thick conductive member arranged to form a letter shape,
It constitutes a movable piece (a V-shaped two-stage rigid body movable piece). The first rigid body 5 is connected to the common terminal 4 by engaging an engagement protrusion (not shown) formed on the base end side with the engagement hole of the common terminal 4, and connects the engagement hole to the first rigid body 5. As a fulcrum, in the figure, it can swing along a horizontal plane. Also the second
The rigid body 6 has a frame shape with an inside opening to avoid interference with the spring 7, and a conductive common contact 14 is fixed to a tip of the rigid body 6. The second rigid body 6 is connected to the first rigid body 5 by fitting the inner edge on the base end side into a groove (not shown) formed on the distal end side of the first rigid body 5, and the groove is used as a fulcrum. Can swing along the horizontal plane. Further, on the distal end side of the first rigid body 5, there is provided an extension portion 5 which extends outward from the second rigid body 6 (the position of the groove) and has a curved distal end.
c is formed. A notch (not shown) for engaging with the spring 7 is formed on the inner edge of the second rigid body 6 on the distal end side.

The spring 7 is a leaf spring made of a thin plate material.
A base-side projection (not shown) engages with the engagement hole of the common terminal 4, and a distal-side projection (not shown) engages with the engagement cutout of the second rigid body 6, thereby providing a common terminal. It is attached between the terminal 4 and the second rigid body 6, and realizes the following urging operation. That is, each of the rigid bodies 5 and 6 constituting the movable piece
In a natural state (non-operating state) where no external force is applied to the second rigid body 6, the second rigid body 6 is urged so that the common contact 14 is pressed against the normally closed contact 13. When the first rigid body 5 is pushed inward by a predetermined displacement amount or more, an urging force is applied so that the common contact 14 separates from the normally closed contact 13 and is brought into an operating state in which the common contact 14 is pressed against a normally open contact 15 described later. Let it.

The normally open terminal 9 has both ends protruding from the end surface of the base member in the sliding direction (the position of the concave portion 3b) so that the connection end 9
a (terminals NO1 and NO2 shown in FIG. 3 (c)), which are conductive terminal components arranged in the sliding direction so as to cross the center of the base member 3. The normally open terminal 9 is a gate-shaped member as a whole as shown in FIG.
It is a common component (a component in which the NO1 and NO2 terminals are integrally configured) for the contact type switch. for that reason,
On both sides of the normally-open terminal 9, plate-like portions 9b extending toward the inside of the base member 3 (downward in the figure) are formed, and the normally-open contacts 15 of the respective switches are respectively formed on these plate-like portions 9b. Fixed. Here, the normally open contact 15 is disposed to face the inside of the common contact 14 in the moving direction (see FIG. 2). The normally open terminal 9 is fixedly attached to the base member 3 with the L-shaped portions on both sides fitted in the recesses 3b of the base member 3.
In the case of the present embodiment, since the normally open terminals (NO1 terminal and NO2 terminal) of the two switches are always used in a state of being short-circuited, each switch has a common integrated product and a normally open terminal 9.
The terminals are short-circuited in the apparatus. Therefore, it is not necessary that both ends of the normally open terminal 9 protrude from the base member 3 to the outside, and only one end may protrude to the outside (that is, only one connection end 9a may be provided).

The cover 10 is a member made of, for example, a synthetic resin. The cover 10 has an engaging portion 10a formed at a diagonal position so as to protrude toward the base member 3 (downward in the figure). The engaging projection 3e in the recess 3d
Is attached so as to cover the upper surface opening of the base member 3. On the lower surface side of the cover 10, there are formed a projection 10b that fits above the concave portion 3a and presses the common terminal 4 and a concave portion 10c where the upper surface of the normally open terminal 9 fits. The sub-assembly 8 and the normally-open terminal 9 are held at predetermined mounting positions without looseness.

The slider 11 is a member having a U-shaped cross section as a whole, having side walls extending on the outer surface of the base member 3 formed on both sides, and made of, for example, synthetic resin. On both side walls of the slider 11, the above-described engaging projections 3 of the base member 3 are provided.
A slit 11a into which c is slidably fitted is formed,
The slider 11 is slidably attached to the base member 3 by the engagement between the slit 11a and the engagement projection 3c. Further, on the back surface (the lower surface in FIG. 1) of the slider 11, the inside of the base member 3 (the extended portion 5 of the first rigid body 5) is provided.
A protrusion 11b (pressing portion) extending to a position (near c) is formed along the inner surface of each side wall. These protrusions 11b
When the slider 11 slides in any direction,
It corresponds to a pressing portion that slides in contact with the corresponding extending portion 5c of the first rigid body 5 and presses it in a predetermined displacement amount or more. For example, in FIG. 2, when the slider 11 slides rightward, the upper protrusion 11 b abuts on the distal end surface of the extension portion 5 c of the first rigid body 5 of the subassembly 8 incorporated on the upper side. The rigid body 5 is pushed downward by a predetermined displacement amount or more, and the switch incorporated on the upper side is operated (the common contact 14 is separated from the normally closed contact 13 and brought into contact with the normally open contact 15).

When the common contact 14 operates as described above, the common contact 14 moves as a combination of the swinging operations of the rigid bodies 5 and 6, so that a sufficient wiping amount is secured. That is, the common contact 14 first operates so as to be slightly shifted rightward in FIG. 2 in a state of being kept in contact with the normally closed contact 13, whereby the so-called B-side wiping amount BW
(Shown in FIG. 2) is realized. Next, the common contact 14
Operates so as to be slightly shifted to the right in FIG.
The side wiping amount AW (shown in FIG. 2) is realized. For this reason, the non-operation state (FIG. 2A) and the state after the operation (FIG.
In (b)), the position of the common contact 14 is shifted to the right by the sum of the wiping amounts (BW + AW). Also, on the surface (the upper surface in FIG. 1) of the slider 11,
A connection projection 11e is formed. This connection projection 1
1e is for transmitting the operation force of the operation unit.

FIG. 4A is a circuit diagram of the switch device 1. Symbols S1 and S2 are C-contact type switches each having the above-described subassembly 8 (FIG. 1) as a main component. Also, connection terminals C1, C2, NC1, NC
2, NO1 and NO2 correspond to the connection ends of the terminals as shown in FIG. Reference numeral 18 denotes the above-described detachable connection portion, and the connection terminals NC1 and N
C2 is detachably connected inside the switch device 1. FIG. 4B is another circuit diagram of the switch device 1. In the case of the present embodiment, the connection terminals NO1, NO2
Are connected inside the switch device and are always short-circuited, so only one of them is connected to the external circuit. Therefore, one of them can be omitted in the circuit diagram, and in the case of FIG. 4B, the connection terminal NO2 is omitted.

FIG. 5 shows an example of an operation input section using the switch device 1 (driver's seat operation section 20 of the P / W system).
It is a figure (side sectional view and side view) which shows. The driver's seat operation unit 20 is provided, for example, on the armrest of the driver's seat door, and includes a case 21, a total of four swing operation knobs 25 mounted on the surface of the case 21 in two rows of two each. , A circuit board 23 provided in the case 21, and a connector 24 provided in the case 21. The circuit board 23 has three switch modules (PSW, RR) described later.
SW, RLSW), and an auto switch module 32 (FIG. 6) to be described later.
(Not shown in FIG. 5) is mounted, and by operating each operation knob 25, a corresponding switch is operated. The switch device 1
When the tip of the corresponding operation knob 25 is pulled upward, the slider is pushed forward (to the left in FIG. 5) via the connection protrusion 11e and slides to switch the switch device 1.
One of the switches operates. When the distal end side of the operation knob 22 is pressed down, the slider is pushed rearward (to the right in FIG. 5) via the connection protrusion 11e and slides, and the other switch in the switch device 1 operates. . In FIG. 5, reference numeral 26 indicates, for example, a push button or an operation knob for operating a later-described window lock switch 35 (or a door lock switch 36).

FIG. 6 is a circuit diagram showing an example of a circuit configuration using the switch device 1 (circuit configuration of a P / W system). Many parts of this circuit are
Is provided on the circuit board 23. The circuit elements on the circuit board 23 include a control circuit 31 (HIC) including a microcomputer and an auto switch module (AU).
TOSW) 32 and a passenger-side switch module (PS)
W) and a switch module for right rear seat (RRSW)
A rear left seat switch module (RLSW);
Relays 33 and 34 and a wind lock switch (W / L
SW) 35 and a door lock switch (D / LSW) 36
And a shunt resistor 37. The circuit elements outside the circuit board 23 include a passenger seat window drive motor 41, a rear right seat window drive motor 42, a rear left seat window drive motor 43, a driver window drive motor 44, a passenger switch module. (SPS
W), rear right seat switch module (SRRSW),
There is a rear left seat switch module (SRLSW) and a door lock relay 45.

Here, the switch modules (PSW, RRSW, RLSW) on the circuit board 23 and the circuit board 23
External switch module (SPSW, SRRSW, SR
LSW), a total of six switch modules are all configured by the switch device 1 described above. However, among them, the passenger seat switch module outside the circuit board 23 (SP
SW), rear right seat switch module (SRRS)
W) and a rear left seat switch module (SRLS)
The three switch devices 1 of W) are mounted in a state where the above-described connection portion 18 of the normally closed terminal 2 is cut off. In addition,
The disconnection of the connection part 18 is performed by the slider 1
1, the cover 10 and the normally open terminal 9 are removed (the state shown in FIG. 2), and a cutting tool (such as a nipper) is inserted into the recess 19 described above. At this time, the distance between the end faces of the cut portion should ensure a predetermined insulation distance. By this cutting, the normally closed terminals 2 of the three switch devices 1 are connected to the portions (NC) corresponding to the respective switches.
1 and NC2) are independent and independent (non-conducting state).

The passenger-side switch module (P
SW), switch module for rear right seat (RRS
W), and a switch module (RLS) for the rear left seat.
W), on the circuit board 23, a normally open terminal (only NO1) is connected to a power supply line LB (a line to which a so-called + B potential is applied using a vehicle battery as a power supply), and a normally closed terminal (only NC1) is connected. It is connected to a ground line LG (earth). In addition, normally open terminals (NO1 and NO
2) is a short-circuit in the switch device 1 (that is, since the member constituting the normally open terminal 9 is an integral common component for each switch), the normally open terminal (NO2;
6 is also indirectly connected to the power supply line LB. In addition, since the normally closed terminals (NC1 and NC2) are also short-circuited in the switch device 1 (that is, the members constituting the normally closed terminal 2 are integrated common parts for each switch, and the connection portion 18). Is not cut off), the normally closed terminal (NC2) is also indirectly connected to the ground line L.
Connected to G. In addition, a passenger seat switch module (SPSW) and a rear right seat switch module (SRR)
SW) and rear left seat switch module (SRLS)
W) is operated by an operation knob (not shown) provided on each corresponding seat door, and the normally open terminal (NO1) is also connected to the power supply line LB. However,
The normally closed terminals (NC1, NC2) of these switch modules (SPSW, SRSW, and SRLSW) are connected to the circuit board 23 via the terminals of the connector 24 (FIG. 5).
Corresponding switch module (PSW, RRSW,
And RLSW) are separately connected to the respective common terminals (C1, C2). The common terminals (C1, C2) of these switch modules (SPSW, SRSW, and SRLSW) are connected to the corresponding motors 41, 4 respectively.
2, 43 are connected to the respective coil terminals.

In such a configuration, the driver's seat operating section 2
By operating the knob at 0, for example, one switch (upper switch in FIG. 6) of the switch module for passenger seat (PSW) is operated, or by operating the knob at the operating section of the passenger seat, the switch module for passenger seat (SPSW). When one of the switches (upper switch in FIG. 6) is operated, one coil terminal (upper coil terminal in FIG. 6) of the passenger seat window drive motor 41 is connected to the power supply line LB, and the other coil terminal is connected. (The lower coil terminal in FIG. 6) is connected to the ground line LG, and the passenger seat window drive motor 41 operates, for example, in the down direction (the direction in which the passenger seat window opens). Conversely, for example, the other switch (lower switch in FIG. 6) of the passenger seat switch module (PSW) operates or the other switch (lower switch in FIG. 6) of the passenger seat switch module (SPSW). Is activated, the other coil terminal (lower coil terminal in FIG. 6) of the passenger seat window drive motor 41 is connected to the power supply line LB, and one coil terminal (upper coil terminal in FIG. 6). Is connected to the ground line LG, and the passenger seat window drive motor 41 operates, for example, in the up direction (the direction in which the passenger seat window closes). This operation is the same for the motors 42 and 43 of the other seats, and can also be performed by a switch operation on the circuit board (that is, a knob operation on the driver's seat operation unit 20) or the corresponding seat. The opening / closing operation of the window can also be performed by a switch operation (that is, a knob operation on the operation unit of each seat).

The auto switch module (AUT)
OSW) 32 is a switch that is operated by operating an operation knob 25 for operating a driver's seat window provided in the driver's seat operation unit 20, and includes a common terminal (C) connected to the power supply line LB, a control circuit, It is provided with four normally open terminals (AU, MU, MD, AD) connected to 31 or the like.
Then, when the operation knob 25 is operated in the upward direction (window closing operation direction), the normally open contact (not shown) connected to the normally open terminal MU is closed, and the potential of the normally open terminal MU becomes + B. When the potential is reached, the relay 33 is operated, and the driver window drive motor 44 is operated in the up direction (the direction in which the window is closed). When the operation knob 25 is further operated upward, the normally open contact (reference numeral omitted) connected to the normally open terminal AU is closed, and the potential of the normally open terminal AU becomes + B potential. Control circuit 3
1 is instructed to perform an automatic closing operation (auto-up operation) of the driver's seat window. When an automatic closing operation of the driver's seat window is instructed to the control circuit 31, the control circuit 31 drives the relay 33 under its own control, and operates the motor 44 until the driver's seat window is completely closed.
Keep driving in the up direction. The operation knob 25
Is operated in the opposite direction (downward in this case), the normally open terminal MD and the normally open terminal AD also become + B potential, and the driver seat window opening operation (manual down) and automatic opening The operation (auto down) is realized.

A wind lock switch (W / LS)
W) 35 is an operation knob 2 provided on the driver's seat operation unit 20.
6 is a switch having a normally-closed contact that is operated by operating the switch 6. When the switch is operated, the normally-closed terminals (NC1, NC2) of the three switch modules (PSW, RRSW, and RLSW) are connected to the ground line LG. Shut off. For this reason, the driver or the like of the vehicle operates the window lock switch 35, thereby making it impossible to open or close windows other than the driver's seat, thereby ensuring safety when a child is on board.

A door lock switch (D / LSW)
Reference numeral 36 denotes a switch having two normally open contacts which are also operated by operating an operation knob (not shown) provided on the driver's seat operation unit 20, and one normally open contact (upper contact in FIG. 6). Operates in the closing direction, the potential of the lock input signal to the door lock relay 45 is set to the ground level, and the door lock relay 45 is operated in the locking direction. When the other normally open contact (lower contact in FIG. 6) is operated in the closing direction, the potential of the unlock signal for the door lock relay 45 is set to the ground level, and the door lock relay 45 is operated in the unlock direction. The door lock relay 45 is a relay in a door lock control circuit (not shown), and the lock mechanism of all the doors of the vehicle is operated by the operation of the door lock relay 45. Therefore, when the driver or the like of the vehicle operates the door lock switch 36, the locking or unlocking of each door can be collectively operated. The shunt resistor 37 is for detecting the value of the current supplied to the driver's seat window drive motor 44 in the control circuit 31. Such a current detection is performed, for example, by detecting a foreign object caught in the driver's seat window. (Detailed description is omitted).

According to the switch device 1 described above, the following excellent effects can be obtained. (1) That is, since the normally closed terminals (NC1 and NC2) of the switches in the switch device 1 are detachably connected to each other, the terminals are short-circuited by appropriately disconnecting and using the connection portion 18. It can be used when needed or not shorted,
Moreover, there is no need to externally short-circuit the terminals. Thereby, the circuit board 2 for mounting the switch device 1
3, the number of connection points (the number of locations to be soldered or welded) can be reduced, which is advantageous in terms of productivity and cost of a system using the switch device 1 (in this case, a P / W system). . In addition, since it is not necessary to short-circuit the terminals on the circuit board 23, the degree of freedom of the wiring of the circuit pattern is increased by that amount, and it is possible to contribute to a single-layered, small-sized, and busbarless circuit board 23. Moreover,
The type of the switch device 1 may be the same regardless of whether the terminals are short-circuited or not, so that the above-described adverse effect due to the increase in types does not occur.

FIG. 7 is a circuit diagram as a comparative example corresponding to FIG. In this case, each switch module (P
SW, RRSW, RLSW, SPSW, SRRSW, S
As the RLSW, a switch device 1a in which normally closed terminals are not internally connected is used. In such a switch device 1a, connection portions of terminals as indicated by reference numerals L1, L2 and L3 are required on the circuit board 23,
The number of connection points (the number of locations where soldering or welding is performed) increases by that amount, and the degree of freedom in routing circuit patterns decreases. On the other hand, in the configuration of FIG. 6, such connection portions L1, L2, and L3 are not required.

(2) In the case of the above embodiment, the connection portion 18 between the normally closed terminals (NC1 and NC2) is made of a conductive member (metal member or the like) when the resin base member 3 is formed. The base member 3 is provided in a state of being embedded in the base member 3 by inserting the conductive member into the base member 3 by press-fitting or the like. A concave portion 19 (or opening) is formed so as to be exposed to the outside, and the exposed portion can be easily cut. For this reason, the connection portion 18 can be easily and firmly formed by insert molding or press-fitting into the base member 3 and the like, and a normal cutting tool (for example, a nipper) can be formed in the concave portion 19 ( Alternatively, by inserting the connecting portion 18 into the opening 18 and cutting the exposed portion, it is extremely easy to cut off the connecting portion 18 appropriately. Further, even after disconnection, the holding state of the terminal can be sufficiently maintained.

The present invention is not limited to the embodiment described above. For example, in the above embodiment, the normally closed terminals are detachably connected inside the switch device, but the normally open terminals may be similarly detachably connected inside the switch device. Alternatively, both the normally closed terminal and the normally open terminal may be connected to be detachable. This is because, depending on the circuit in which the switch device is mounted, it may be necessary to short-circuit the normally open terminals or not to short-circuit the terminals. In the above embodiment, the normally open terminal 9 (N
Although the O terminal is formed by a common integral component for the two switches, the present invention is not limited to such an embodiment.
When it is inconvenient if the normally open terminals (or normally closed terminals) of the two switches are in a conductive state, they may be constituted by separate and independent insulated members. For example, the normally open terminal 9 (FIG. 1) in the above embodiment may be divided at the center, and each switch may be a separate insulated member.

Further, in the above embodiment, the shape of the connection end of each terminal is a connection using a laser (electric connection at the time of mounting).
Although the specification for the connection is exemplified, the specification for connection by ordinary soldering may be used. Alternatively, a terminal that can be connected by resistance welding, press fitting, arc welding, or the like may be used. In addition, it goes without saying that the configuration of the driver's seat operation section 20 of the P / W system to which the switch device of the present invention is applied is not limited to the embodiment of FIG. Further, the switch device of the present invention is not limited to the above-described vehicle P / W system, but can be applied to any device or system having a circuit that requires two C-contact switches. . Further, the present invention is not limited to the P / W system, and can be naturally applied to a switch for a drive circuit of a P / S (power seat) or a sunroof.

[0030]

According to the present invention, the normally closed terminals and / or the normally open terminals of each switch in the switch device are connected so as to be able to be separated. It can be used even when these terminals need to be short-circuited or not, and there is no need to externally short-circuit the terminals. This makes it possible to reduce the number of connection points (the number of locations where soldering and welding is performed) on the circuit board for mounting the switch device, and to use a system using the switch device (for example, a vehicle P / W system). ) Is advantageous in terms of productivity and cost. Further, since it is not necessary to short-circuit the terminals on the circuit board, the degree of freedom of the layout of the circuit pattern is increased by that much, which contributes to the circuit board having a single layer, a small size, and a bus barlessness. Moreover, the type of the switch device may be the same regardless of whether the terminals are short-circuited or not.
The above-mentioned adverse effects due to the increase in types do not occur.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a switch device.

FIG. 2 is a plan view showing the internal configuration and operation of the switch device.

FIG. 3 is a diagram illustrating an appearance of a switch device.

FIG. 4 is a diagram illustrating a characteristic portion of the switch device.

FIG. 5 is a diagram illustrating an application example of a switch device (P / W driver's seat operation unit).

FIG. 6 is a diagram illustrating a circuit configuration example (P / W circuit configuration) using a switch device.

FIG. 7 is a diagram illustrating a circuit configuration as a comparative example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Switch apparatus 2 Normally closed terminal (NC terminal) 3 Base member 4 Common terminal 5 1st rigid body (movable piece) 6 2nd rigid body (movable piece) 7 Spring (biasing member) 8 Subassembly 9 Normally open terminal (NO terminal) 10) Cover 11 Slider (sliding member) 13 Normally closed contact 14 Common contact 15 Normally open contact 18 Connection part 19 Depression (or opening)

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Ryoichi Akamatsu 1005 Iwashiro, Kurayoshi City, Tottori Prefecture Omron Kurayoshi Co., Ltd. (72) Inventor Keiichi Shimizu 801 Shimogyo-ku, Shimogyo-ku, Higashi-iri, Minamifudo-cho, Shimogyo-ku, Kyoto F-term (reference) 5G010 AA01 AB02 AD02 KB09 KF04 5G023 CA08 5G052 AA32 BB04 HA02 HA14

Claims (2)

[Claims] 1. A switch device comprising two sets of C-contact type switches, wherein the switch has a common terminal, a normally-closed terminal that becomes conductive when the common terminal is not operated, and a common terminal. A normally open terminal that becomes conductive when activated, and wherein the normally closed terminals of each switch and / or the normally open terminals are detachably connected to each other. 2. A connection portion between the normally closed terminals and / or between the normally open terminals, wherein a conductive member is inserted into the base member when a resin base member is formed, or the base member after the formation is formed. Is provided in a state embedded in the base member by assembling a conductive member to the base member. The base member partially exposes the connection portion to the outside, and the exposed portion can be easily cut. The switch device according to claim 1, wherein a concave portion or an opening portion is formed.