JPH0644371U - Electric motor device for vehicle electrical components - Google Patents

Abstract

(57) [Abstract] [Purpose] A connector that connects the motor section and the contact unit that contacts the relay plate when the switch circuit of the electric motor device is assembled separately into the positive switch method and the negative switch method. Allow all parts other than the unit to be shared. [Configuration] Connection terminals 18 and 19 on the side of the motor 3 protruding from the casing 9 in the axial direction of the motor and connection terminals 10b and 13b on the side of the contact unit 14 standing upright in the axial direction of the worm wheel 5 are arranged in parallel. Connector unit 16,
The wiper motor 1 corresponding to the plus switch system or the minus switch system is formed by connecting with either one of the connector units 16 and 17 of the cross connector unit 17.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electric motor device for vehicle electrical components mounted in vehicles such as passenger cars, buses, and trucks.

[0002]

[Problems to be Solved by Prior Art and Invention]

 Generally, a vehicle of this type is equipped with an electric motor device for driving electric components such as a wiper, a power seat, and a power window. By the way, there are two types of electric circuits in vehicles, which are roughly divided into two types, depending on differences in automobile manufacturers and vehicle types. That is, as shown in FIG. 12, a circuit system in which the wiper drive switch 25 is on the power source side with respect to the motor 1 (hereinafter referred to as a plus switch circuit system), or as shown in FIG. The wiper drive switch 25 is configured by a circuit system in which the wiper drive switch 25 is on the ground side (hereinafter referred to as a minus switch circuit system). On the other hand, the drive control of the electric motor device needs to control the operation direction to be constant regardless of such a difference in the switch circuit method. Therefore, the switch circuit that controls the drive of the electric motor device is also required. It is necessary to set both the positive switch circuit and the negative switch circuit based on the switch circuit system, and it is necessary to prepare the switches equipped with these switch circuits. For that purpose, it is not the case that the same electric motor device requires two kinds of members due to the difference in the switch circuit, and parts management becomes complicated and complicated. In order to change the wiring for the minus switch, it is necessary to carry out the troublesome work of switching the wiring of the already connected lead wires one by one. Therefore, even if it is necessary to change the provisional order, such work is practically performed. Therefore, there is a problem that the yield tends to be poor, which leads to cost up. On the other hand, in recent years, there is a strong demand for standardization of parts, and it is unavoidable that there is such a difference in the switch method for electrical components, and it is required to standardize parts as much as possible. ing.

[0003]

[Means for Solving the Problems]

 SUMMARY OF THE INVENTION The present invention was devised in view of the above circumstances to provide an electric motor device for an electric component of a vehicle, which can eliminate these drawbacks. A motor in which an armature is rotated when power is turned on. And a worm wheel for transmitting power by meshing with a worm gear provided on the output shaft of the motor section, and the motor is provided by contact between a relay plate provided on the worm wheel and a contact provided on the casing side. In an electric motor configured to perform a partial drive switching control, the contactor is integrally incorporated in a contactor unit that is detachably attached to the outer surface of the casing, and the casing has the outer surface. While the contactor of the contactor unit assembled to the unit has a through hole for contacting the relay plate, The unit and casing each have a pair of terminals projecting outward to form a power supply circuit for the motor, and these terminals are wired in parallel with each other without being crossed with the parallel connector unit. The present invention is characterized in that either one of the crossed connector units that has been connected is selected and connected.

According to this configuration, the present invention selects whether the connector circuit connecting the motor unit and the contactor unit is a parallel type or a crossing type so that the switch circuit is a positive type. It is possible to set a negative method so that the members can be used in common.

[0005]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a wiper motor for a rear wiper device for wiping a rear window of a vehicle. The wiper motor 1 includes a motor unit 3 on which an armature 2 is rotatably supported and an output shaft 4 which is an armature shaft. The worm wheel 5 formed by the worm gear 4a meshes with the worm wheel 5. The driving force output from the output shaft 4 is output via the worm wheel 5 in a decelerated state, and the blade ( The wiper arm provided with (not shown) is interlockingly connected to the wiper shaft 6 integrally provided with the wiper shaft 6 through a link mechanism (not shown), and these are all conventional.

On the other hand, 7 is a motor yoke which covers the armature 2 and to which a permanent magnet 8 is fixed on the inner peripheral surface, and 9 is a resin material to which the motor yoke 7 is integrally fixed via screws 9 a. In the formed casing, a through hole 9b is formed in the casing 9, and the three contacts, that is, the three contacts for stopping the blade to the closing position (stop position) by dynamic braking when the wiper is stopped, that is, The first to third contacts 10, 11, 12 are arranged to penetrate therethrough. Then, each of these contacts 10, 11 and 12 is for power supply to the motor section (it is connected to the negative pole in the case of the negative switch system and is connected to the positive pole in the case of the positive switch system). It is molded together with the terminal board 13 using a resin material, and is integrated with the contactor unit 14 to which an external wiring coupler (not shown) is connected to the tip, and is integrally fixed to the outer surface of the casing 9. In this fixed state, the tips of the contacts 10, 11, 12 protruding from the contact unit 14 penetrate the through hole 9b and reach the wheel surface of the worm wheel 5. The relay plate 15 fixed integrally (in the embodiment, the setting is substantially the same as the relay plate for the conventional plus switch) is made to come into contact. On the other hand, a motor terminal plate 10a is branched and formed on the first contact 10 of the contacts 10, 11, 12 and the tip portions of the terminal plate 10a and the terminal plate 13 are directed toward the motor section 3 direction. The male connecting terminal portions 10b and 13b connected to connector units 16 and 17 of the terminal plates 10a and 13 to be described later are parallel to each other in the axial direction outward of the worm wheel 5. Upright. The casing 7 is provided with male-type connecting terminal portions 18, 19 connected to a motor brush (not shown) in axial contact with the motor portion 3 side portion in parallel with the motor portion output shaft 4. It projects toward the child unit 14 side.

On the other hand, the connector units 16 and 17 are formed by assembling a pair of lead wires in a common resin cover material 24. Of these, one of the connector units 16 is a lead wire. (Lead plates) 20 and 21 are wired in parallel without crossing each other to form a parallel connector unit 16, and in the other connector unit 17, lead wires (lead plates) 22 and 23 are wired in a cross shape. And constitutes the cross connector unit 17. At the end portions of the lead wires of the connector units 16 and 17, female connection terminal portions 20a, 20b, 21a and 21b are fitted and connected to the connection terminal portions 10b and 13b and 18, 19 respectively. , 22a, 22b, 23a, 23b are respectively formed. Now, when the control switch mechanism for controlling the drive of the motor unit 3 is a plus switch circuit, if the parallel connector unit 16 is set to be connected, the parallel connector unit 16 is connected to the output shaft 4. After being pushed toward the axial motor portion 3 side to fit and connect one of the connecting terminal portions 20b and 21b to the connecting terminals 18 and 19 protruding from the casing 9, the other connecting terminal portions 20a and 21a are connected to the parallel connector. It suffices to push the unit 16 in the axial direction of the worm wheel 5 so that the unit 16 can be fitted and connected to the connection terminals 10b and 13b on the side of the contactor unit 14, and the negative connector circuit 17 uses the cross connector unit 17. In the same assembling operation described above, one of the connection terminal portions 22b and 23b is fitted and connected to the connection terminals 19 and 18, respectively, and the other connection terminal portion is connected. 2a and 23a may be fitted and connected to the connection terminal portions 10b and 13b, respectively. Thus, by selecting the connector units 16 and 17, the switch circuit of the motor portion 3 can be changed to a plus type and a minus type. become.

In the embodiment of the present invention configured as described above, in order to use the plus switch circuit system as the control switch mechanism for controlling the drive of the motor section 3 of the electric component motor 1, the connection terminal section 10b, The parallel connector unit 16 may be selected and connected to 13b, 18 and 19, and the crossed connector unit 17 may be selected and connected to form the minus switch circuit system.

As described above, in the embodiment of the present invention, the motor units for the plus switch circuit and the minus switch circuit can be made optional by selectively incorporating the connector units 16 and 17, and as a result, The motor devices of these two switch circuits differ only in the connector units 16 and 17, but the latter members can be made completely common, which greatly contributes to the commonization of parts. Moreover, in this device, the switches other than the connector units 16 and 17 are assembled in advance, and the switch units can be grouped by finally assembling the connector units 16 and 17 selectively. Even if it is already assembled as a finished product, it is easy to change the switch circuit by replacing the connector units 16 and 17, and it is easy to change the switch circuit. Almost completely completed with parts other than the connector units 16 and 17 assembled without any limitation, and pre-assembled as a semi-finished product, and an order for which switch circuit The connector units 16 and 17 may be selectively incorporated in the semi-finished product in accordance with the above, so that the yield is significantly improved and the cost is reduced. Eun.

Moreover, the connector units 16 and 17 have lead wires that are parallel to each other and crossed to each other. Therefore, the states of the lead wires disposed in the connector units 16 and 17 are simply identified. As a result, it is possible to instantly determine whether the motor device is for the plus or minus switch circuit, and it is possible to reliably avoid the problem of accidentally mounting the reverse switch circuit for the vehicle body. In this case, if the cover material 24 forming the connector units 16 and 17 is made of a transparent or semi-transparent material so that the wiring condition of the lead wires can be visually observed from the outside, any of the external observations of the finished product can be performed. There is an advantage that it can be discriminated whether it is for a switch circuit. By the way, in order to set the switch circuit so that it can be discriminated by such external observation, it is only necessary to discriminate whether or not the lead wires cross each other. However, if a difference in external shape is provided by raising the intersection of the lead wires, etc., it will be possible to identify.

Moreover, with this structure, the work of connecting the connector units 16 and 17 is simple. That is, the connector units 16 and 17 are fitted and connected by connecting one of the connection terminal portions 20b, 21b, 23b and 22b to the connection terminals 18 and 19 projecting from the casing 9 in the direction of the motor output shaft. After that, the other connection terminal portions 20a, 21a, 22a, and 23a are pushed in the axial direction of the worm wheel 5 to be fitted and connected to the connection terminals 10b and 13b protruding from the contact unit 14, so that the corresponding connection can be achieved. The connection terminals can be connected to each other, and as a result, the connecting work of the connector units 16 and 17 is greatly simplified, and the assembling work is not complicated and troublesome.

Moreover, in this structure, the contacts 10, 11, 12 can be connected to the casing 9 only by integrally mounting the contact unit 14 on the outer surface of the casing 9, and the workability can be greatly improved in this case as well. To be improved.

It should be noted that the present invention is not limited to the above-mentioned embodiment, and as a construction which can easily incorporate the connector unit as in the above-mentioned embodiment, a connecting terminal on the casing side is provided. The relationship of the projecting direction of the connection portion on the contact unit side with the contact portion is opposite to that of the above-described embodiment, that is, the connection terminal portion on the casing side is erected in the axial direction of the worm wheel, and the contact unit The connection terminal part on the side may project toward the motor part. In short, a pair of terminals protruding from the contactor unit and a pair of terminals protruding from the casing are parallel to each other. Of the pair of terminals, and the protruding direction of one of the terminals is an upright direction with respect to the plane formed by the other terminal. It is good if you set it. The parallel connector unit and the cross connector unit may be selected so that either one is set for the plus switch circuit and the other is set for the minus switch circuit.

[0014]

[Operation effect]

 In short, since the present invention is configured as described above, as described above, when the drive control of the motor unit is controlled by switching, either the positive switch circuit system or the negative switch circuit system is used. In this case, an electric motor is used.In this case, the parallel switch unit or the cross connector unit is selected and connected between the contact terminal side connecting terminal part and the casing side connecting terminal part. The electric motor of will be prepared. In this way, by selectively incorporating the connector unit, it is possible to arbitrarily assemble and separate the motor device for the plus switch circuit and the motor device for the minus switch circuit. The fact that all members can be standardized completely will greatly contribute to standardization of parts. However, in this product, the switch circuit is completed by previously assembling the members other than the connector unit, and finally by selectively assembling the connector unit.Therefore, the motor device has already been completed. Even if it is assembled as above, the switch circuit can be easily changed by exchanging the connector unit, and the work of changing the switch circuit can be facilitated. Furthermore, almost completely finished products with parts other than the connector unit are pre-assembled as semi-finished products without being concerned with which switch circuit they are. A finished product can be manufactured by selectively incorporating the unit, and therefore, the yield can be significantly improved and the cost can be reduced.

Moreover, since the wiring of the lead wires of the connector unit is parallel to one another and crosswise to the other, the motor device can be used for both positive and negative switch circuits by simply identifying the state of the lead wires. It is possible to instantly determine whether it is a product or not, and it is possible to reliably avoid the problem of accidentally mounting the reverse switch circuit product on the vehicle body.

[Brief description of drawings]

FIG. 1 is a front view of a wiper motor.

FIG. 2 is a front view showing a state in which a connector unit and a contact unit are removed from a wiper motor.

FIG. 3 is a front view showing a state in which a connector unit is removed from a wiper motor.

FIG. 4 is a front view of a relay plate.

FIG. 5 is a front view of a contactor unit.

FIG. 6 is a side view of the contactor unit.

7 is a cross-sectional view taken along the line AA in FIG.

FIG. 8 is a front view of a parallel connector unit.

9 is a sectional view taken along line BB in FIG.

FIG. 10 is a cross-sectional view showing a connected state of the parallel connector unit.

FIG. 11 is a front view of a cross connector unit.

FIG. 12 is a circuit diagram showing a plus switch circuit system.

FIG. 13 is a circuit diagram showing a minus switch circuit system.

[Explanation of symbols]

 4 Motor Shaft 5 Worm Wheel 9 Casing 10 Contactor Unit 10a Motor Terminal Plate 14 Contactor Unit 15 Relay Plate 16 Parallel Connector Unit 17 Cross Connector Unit

Claims (3)

[Scope of utility model registration request] 1. A relay plate and a casing provided on the worm wheel, comprising: a motor portion for rotating an armature when the power is turned on; and a worm wheel for transmitting power by a worm gear provided on an output shaft of the motor portion. In an electric motor configured to perform switching control for driving a motor unit by contact with a contactor provided on the side, the contactor is integrally formed with a contactor unit detachably mounted on the outer surface of the casing. Assembled, the casing has a through hole for the contactor of the contactor unit assembled on the outer surface to penetrate therethrough to come into contact with the relay plate, while the contactor unit and the casing are A pair of terminals are provided on the outside so as to form a power supply circuit for the motor, and these terminals are connected in parallel without crossing. An electric motor device for a vehicle electrical component, characterized in that either one of a parallel connector unit wired in a parallel pattern and a cross connector unit wired in a cross pattern is selected and connected. 2. The pair of terminals projecting from the contact unit and the pair of terminals projecting from the casing respectively project in parallel with each other, and one of the pair of terminals is projected. An electric motor device for an electric component for a vehicle, wherein a protruding direction of one of the terminals is set to be a direction upright with respect to a plane formed by the other terminal. 3. The pair of terminals projecting from the casing according to claim 1, wherein the pair of terminals project in the axial direction in a state of being juxtaposed in the axial direction of the motor output shaft,
A pair of terminals protruding from the contactor unit are arranged so as to be juxtaposed outward in the axial direction of the worm wheel in parallel with each other, while the connector unit is arranged in the axial direction of the motor unit output shaft. By moving it to the casing side connection terminal part that can be fitted and connected to the casing side terminal and the connector unit in a state where the casing side connection terminal part is fitted and connected in the axial direction of the worm wheel. An electric motor device for an electric component for a vehicle, comprising: a connection terminal portion on the contact side that can be fitted and connected to the connection terminal portion on the side.