JPH10169311A - Power window switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To locate an arithmetic control circuit having pinching functions inside a switch without design change for parts by giving almost the same arrangement to a hybrid IC having an arithmetic control electronic circuit and a hybrid IC terminal not equipped with a pinching prevention function. SOLUTION: Almost similar arrangement is given to a terminal 20 of a hydroid IC(HIC) 13a having no pinching prevention function and a terminal 20 of an HIC 13b equipped with a pinching prevention function. Also in responds to the terminal arrangement of the HIC 13a, 13b, the substrate 12 is used commonly. Thus, a pinching prevention function can be given to a power window switch 1 only by making a change from the HIC 13a to HIC 13b and an accompanied slight change to the wiring pattern of the substrate 12. Moreover, no design change is required for other parts when adding other pinching prevention function. By doing this, the functional change can be made easily.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technology for sharing parts of a power window switch for a vehicle.

[0002]

2. Description of the Related Art Conventionally, a mechanism for raising and lowering a vehicle window of an automobile by a motor is called a power window. The power window is composed of a vehicle window, a lifting mechanism called a window regulator, and a motor for operating the lifting mechanism. , And a power window switch for operating these movements. Among them, the vehicle window, the lifting mechanism and the motor are installed in the door of the automobile, and the power window switch is installed on the side of the door on the vehicle interior side.

Recently, with the spread of the power window, a finger or the like may be pinched in a vehicle window due to an erroneous operation of a switch. As an example of a measure for preventing this, there is a structure in which an operation switch is raised to prevent the power window from being carelessly operated. The operation switch of the lifting structure raises the vehicle window by the lifting operation, and the number of erroneous operations is reduced as compared with the operation switch of the conventional pushing-down structure, so that the pinching is reduced to some extent. However, this is not enough, so the position of the car window and the load condition of the motor are measured, and if the load on the motor becomes abnormally large, it is determined that the fingers or the like are being pinched, and the motor is stopped or reversely rotated. Thus, a power window with an anti-jamming function for preventing the jamming is provided. The anti-jamming function is constituted by an arithmetic control electronic circuit such as a microcomputer, and the arithmetic control circuit is installed at any position near the motor or in the power window switch. Of these, installation near the motor is not appropriate because it is inside the door and requires measures against water wetting. Therefore, generally, the arithmetic and control circuit is installed in the power window switch.

[0004]

However, since this arithmetic and control electronic circuit has a complicated structure, a large number of parts, and a large area, a large number of parts are required for mounting in a power window switch. In addition, the arrangement of the contact mechanism and the like becomes difficult. Therefore, in order to provide the switch with the anti-jamming function, many components of the power window switch need to be newly designed. SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems. A hybrid IC in which an arithmetic control electronic circuit is formed as a hybrid IC, and a terminal of the hybrid IC having no anti-jamming function, and a hybrid IC having an anti-jamming function is provided. It is an object of the present invention to provide a power window switch in which an arithmetic and control circuit having a sandwiching function can be arranged in a switch without changing the design of parts by arranging the terminals with substantially the same arrangement.

[0005]

In order to achieve the above object, a first aspect of the present invention is to detect that a finger or the like has been caught in a vehicle window and stop or reverse a motor for driving the vehicle window up and down. An operation knob provided in a power window device having or not having an anti-jamming prevention function for preventing occurrence of a vehicle, an operation knob for instructing vertical driving of a vehicle window, and an operation command given to the motor based on instruction information from the operation knob and the motor In a power window switch having an arithmetic control circuit for controlling the operation of the above, the arithmetic control circuit is constituted by a hybrid IC, and a hybrid IC terminal having no anti-jamming function and a hybrid The terminals of the IC are arranged substantially in the same manner. Corresponding to the C terminal sequences are those sharing. In this configuration, the power window switch can be provided with an anti-jamming function only by replacing the hybrid IC and making a slight change in the wiring pattern of the board, so that it is not necessary to change the design of other components, thus preventing the jamming. A change from a power window switch having no function to a power window switch having a pinch prevention function can be easily performed.

According to a second aspect of the present invention, in the configuration according to the first aspect, the hybrid IC having an anti-jamming function is characterized in that information on a current value flowing through the motor, a position of a vehicle window or a rotation speed of the motor. This is to determine whether or not pinching has occurred. In a hybrid IC that determines whether or not a pinch state is detected based on the current value flowing through the motor and the position information of the vehicle window, when a finger or the like is caught in the vehicle window, the current value flowing through the motor increases before the vehicle window reaches the upper limit position. From this, it can be determined that it is in the pinched state. On the other hand, in a hybrid IC that determines whether or not a pinching state has occurred based on the current value flowing through the motor and the rotation speed information of the motor, when a finger or the like is caught in a vehicle window, the rotation speed of the motor decreases and the current value flowing through the motor increases. Therefore, it can be determined from this that it is in the pinched state. Since the terminal arrangements of the hybrid ICs having these two types of pinch prevention functions are equal and the substrate is shared corresponding to the terminal arrangement of the hybrid ICs, the type of the pinch prevention function can be changed, and further the performance can be improved. Hybrid I without changing the design of parts
It can be performed only by exchanging C.

According to a third aspect of the present invention, in the configuration of the first aspect, the hybrid IC having no pinch prevention function operates by detecting a current value flowing through the motor. . In this configuration,
Since the difference in configuration from the hybrid IC having the pinch prevention function is reduced, the terminal arrangement of the hybrid IC can be easily equalized.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1A is an exploded perspective view of the power window switch according to the present embodiment, and FIG.
FIG. 1B is an external view of a power window switch hybrid IC (hereinafter, referred to as HIC) having no anti-jamming function, and FIG. 1C is an external view of a power window switch HIC having an anti-jamming function. This power window switch 1 has a pinch prevention function,
It is provided in a power window device that does not have it, or has no operation knob, and has three operation knobs of an auto knob 2, a manual knob 3, and a window lock knob 4. The auto knob 2 is rotatably supported by a cover case 5 that protects the surface of the switch 1, and the auto knob 2 holds a plunger 7 pressed by a spring 6. The plunger 7 is in contact with a touch plate 8, which is engaged with an auto switch 9. When the user rotates the auto knob 2, the pressing point of the plunger 7 on the feeler plate 8 is displaced, whereby the ON / OFF operation of the auto switch 9 is performed. Once the user operates the auto knob 2, the vehicle window is automatically moved up and down even if the user releases his / her finger. Also, the manual knob 3 has the same mechanism as the auto knob 2, and the manual knob 3 is rotated to perform an ON / OFF operation of the manual switch 10, thereby stopping the vehicle window at a desired position of the user. Can be. Further, when the window lock switch 11 is turned on by pressing the window lock knob 4, the operation by the auto switch 9 and the manual switch 10 is prohibited.

The manual switch 10 and the like are
2 and on the substrate 12,
H incorporating an arithmetic and control circuit for controlling the driving of the motor
An IC 13, an electrolytic capacitor 14, a relay 15, a shunt resistor 16, and the like are arranged. The board 12 is protected by a case 18 and a terminal cover 19 together with a connector assembly 17.

As shown in FIG. 1B, the HIC 13a having no pinching prevention function has eight terminals 20, while the HIC 13a has a pinching prevention function as shown in FIG. 1C. The HIC 13b has nine terminals 20, and the terminals 20 of both HICs 13a and 13b are arranged substantially in the same manner. Further, the substrate 12 has a HIC 13a,
13b is shared according to the terminal arrangement. As a result, the power window switch 1 can be provided with an anti-jamming function only by changing from the HIC 13a to the HIC 13b and accompanying a slight change in the wiring pattern of the substrate 12. Further, the addition of the anti-jamming function does not require a design change of other parts. In general, a change in the design of a part requires the installation of a new mold corresponding to the part, which has been a factor of high cost. However, in the present invention, since it is not necessary to change the design of the parts, it is possible to add the anti-jamming function to the power window switch 1 at low cost.

FIG. 2 is a circuit diagram of a power window device of a two-door vehicle having no pinch prevention function. The power window device 30 includes a driver side power window switch 31 and a passenger side power window switch 32.
And motors 33 and 34 which are driven by the up / down instructions from these switches 31 and 32 to move up / down the vehicle window. The driver's seat side power window switch 31 includes a driver's seat switch 35 for raising and lowering the driver's seat side window, and a passenger's seat switch 36 for raising and lowering the passenger window side. The driver sits in the driver's seat. It is configured to be able to control the raising and lowering of all the vehicle windows while keeping it. The driver side power window switch 31 is provided with a window lock switch 37 for prohibiting the passenger side power window switch 32 from moving up and down. The driver's seat side power window switch 31 is a circuit on which the HIC 13a for controlling the operations of the motors 33 and 34 is provided while giving operation commands to the motors 33 and 34 based on instruction information from the driver's seat switch 35 and the like. Includes substrate. The HIC 13a has eight terminals 20a to 20h, and the terminals 20a to 20d
The terminal 20e is connected to a power supply line, the terminals 20f and 20g are connected to a relay of a motor 33 for raising and lowering a driver's seat side vehicle window, and the terminal 20h is connected to a ground.

On the other hand, FIG.
It is a circuit diagram of a power window switch of a door car. The configuration of the power window switch 40 is the same as that of FIG.
In the power window switch 30 shown in FIG. 7, the HIC 13a without the anti-jamming function is changed to the HIC 13b with the anti-jamming function, and a switch 39 for detecting the position of the vehicle window is added. The switch 35, the passenger seat switch 36, the window switch 37, and the like have the same configuration as the power window switch 30 described above. HIC13b is 9
Two terminals 20a to 20i are provided. Eight of the terminals 20a to 20h have the same arrangement as the HIC 13a shown in FIG. 2, and the terminal 20i is connected to a vehicle window position detection switch 39. ing. As described above, the difference between the power window device 30 having no anti-jamming function and the power window switch device 40 having the anti-jamming function is slight such as wiring of the HIC and the board, and the design change of other parts is not required. Therefore, it is possible to easily add the function of preventing pinching to the power window switch. In addition, since the performance of the anti-jamming function can be improved only by replacing the HIC, the performance of the operation control circuit can be improved even after the start of the production of the power window switch, so that the performance of the power window switch can be easily improved. .

The present invention is not limited to the above embodiment, but can be variously modified. For example, the pinch prevention function
In addition to determining whether or not a pinching state has occurred based on the current value of the motor and the position of the vehicle window, a method of determining whether or not the pinching state is based on the current value of the motor and the rotation speed of the motor may be used.

[0014]

As described above, according to the power window switch of the first aspect, the arithmetic and control circuit is constituted by a hybrid IC, and is provided with a terminal of the hybrid IC having no pinch prevention function and a pinch prevention function. Since the terminals of the hybrid ICs are arranged in substantially the same arrangement, and the board on which these hybrid ICs are mounted is shared corresponding to the terminal arrangement of the hybrid ICs.
By simply replacing the hybrid IC and making minor changes to the wiring pattern on the board, the power window switch can be provided with a pinch prevention function, eliminating the need to change the design of other components and making function changes easy. Becomes

According to the power window switch of the present invention, the hybrid IC having the anti-jamming function in the configuration of the present invention is characterized in that a current value flowing through the motor, a position of a vehicle window or a rotation of the motor. Since it is determined whether or not pinching has occurred based on the speed information, the change between the two types of pinching prevention functions can be achieved only by replacing the hybrid IC with the pinch prevention function and by slightly changing the wiring pattern of the board. It becomes possible. This makes it possible to easily change the anti-jamming function without changing the design of other components.

According to the power window of the third aspect, in the configuration of the first aspect, the hybrid IC having no pinch prevention function operates by detecting the value of the current flowing through the motor. In addition, the number of common points with the hybrid IC having the pinch prevention function is increased, and the terminal arrangement between the hybrid ICs can be easily equalized.

[Brief description of the drawings]

FIG. 1A is an exploded perspective view of a power window switch according to an embodiment of the present invention, FIG. 1B is an external view of an HIC having no anti-jamming function, and FIG. 1 is an external view of a HIC.

FIG. 2 is a circuit diagram of a power window switch device having no pinch prevention function.

FIG. 3 is a circuit diagram of a power window switch device having an anti-jamming function.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Power window switch 2 Auto knob (operation knob) 3 Manual knob (operation knob) 4 Window lock knob (operation knob) 12 Substrate 13, 13a, 13b Hybrid IC 20, 20a to 20i Terminal 30, 40 Power window switch device 33, 34 Motor

Claims (3)

[Claims] 1. A power window device that detects or detects that a finger or the like is pinched in a vehicle window and stops or reverses a motor that drives the vehicle window up and down to prevent the pinching from occurring. A power window, comprising: an operation knob for instructing vertical driving of the vehicle window; and an operation control circuit for giving an operation command to the motor based on instruction information from the operation knob and controlling the operation of the motor. In the switch, the arithmetic and control circuit is constituted by a hybrid IC, and a terminal of the hybrid IC without the pinch prevention function and a hybrid IC with the pinch prevention function
And the terminals of these hybrid ICs are mounted in substantially the same arrangement.
A power window switch which is shared according to a terminal arrangement of the hybrid IC. 2. A hybrid IC having the anti-jamming function determines whether or not the jamming has occurred based on a current value flowing through the motor and information on a position of the vehicle window or a rotation speed of the motor. The power window switch according to claim 1, wherein: 3. The power window switch according to claim 1, wherein the hybrid IC having no pinch prevention function operates by detecting a value of a current flowing through the motor.