JPH09200991A - On-board motor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a on-board motor having excellent vibration resistance and shock resistance by molding a stator, an outgoing line for the coil of the stator and a wiring member for connecting the outgoing line to the outside of the motor of a molding resin. SOLUTION: A motor 1 is assembled, and stators 12, coils 18, wiring members 20, fourth connecting plates 46 and the tip section of a lead wire 36 are molded integrally of a molding resin. Consequently, a casing 2 for the motor 1 is completed. A place, where the tip section of the lead wire 36 is fixed by a caulking section 40, is mounted beforehand on a bush 41, and the bush 41 is also molded integrally. Accordingly, since the stators 12 and the wiring members 20, etc., are molded integrally of the molding resin, wirings are not slipped off by the vibrations, etc., of an automobile even when the motor 1 is installed to the automobile and used. Since the casing 2 is further molded, a heat-dissipation effect is acquired.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle-mounted motor.

[0002]

2. Description of the Related Art Various motors such as motors mounted on engines and motors for moving wipers are mounted on automobiles such as passenger cars and trucks.

In this on-vehicle motor, as a method of connecting the coil from the stator of the motor and the lead wire terminal from the outside, the lead wire and the coil are bound to the stator with a string, or via a PC board. It is fixed.

Specifically, the tip of the lead wire is soldered to the coil extending from the stator, and the coil and the lead wire are bound along the stator with a string or the like, and after the binding, they are fixed with a varnish or the like. doing.

[0005]

However, as described above, in the method of binding the coil and the lead wire with the string, the fixing may be disengaged due to the vibration of the automobile, and the vibration resistance and the shock resistance may be deteriorated. There was a problem of being weak against.

Further, with the above method, there is a problem in that the manufacturing method requires binding using a string, and the work is troublesome.

In view of the above problems, the present invention provides a vehicle-mounted motor having excellent vibration resistance and shock resistance.

[0008]

According to a first aspect of the present invention, there is provided a vehicle-mounted motor comprising a stator, a lead wire of a coil of the stator, and a wiring member for connecting the lead wire to the outside of the motor. Is molded by.

According to a second aspect of the invention, in the on-vehicle motor according to the first aspect, the wiring member is laminated on the conductive layer portion and a conductive layer having a coil connecting portion and an external terminal portion. An insulating layer portion is provided, and the lead wire of the coil is connected to the coil connecting portion and the lead wire is connected to the external terminal portion.

According to a third aspect of the invention, in the on-vehicle motor according to the second aspect, the wiring member has a substantially ring shape, and the coil connecting portion and the external terminal portion project from an outer peripheral portion of the conductive layer portion. A tape-shaped coil is wound around the stator, and the lead wire of the tape-shaped coil and the coil connecting portion are electrically connected.

In the above on-vehicle motor, since the stator, the coil and the wiring member are integrally molded with the molding resin, the vibration resistance and the shock resistance are excellent, and the coil lead wire and the wiring member are excellent. The connection part with does not come off.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

The motor 1 shown in FIG. 1 is a motor mounted on an automobile and is a 9-pole motor consisting of three phases of U phase, V phase and W phase.

Reference numeral 12 is a stator, which is a ring portion 1.
4 and nine protrusions 16 protruding inward from this. The protrusion 16 has a T-shape in a plane.

Reference numeral 18 is a tape-shaped coil wound around each protruding portion 16 of the stator 12. The upper end of the coil 18 (leader wire of the coil 18) is the stator 1
2 above the lower end of the coil 18 (coil 1
The lead wire 8) is drawn below the stator 12.

Reference numeral 20 indicates a stator 1 as shown in FIG.
2 is a wiring member arranged below. The wiring member 20 is
It has a regular hexagonal ring shape and is formed by stacking a first connecting plate 22 for the U phase, a second connecting plate 24 for the V phase, and a third connecting plate for the W phase.

First, the structure of the first connecting plate 22 will be described.

The first connecting plate 22 is a conductive layer 2 made of a copper plate.
8 and an insulating layer 30 laminated on the conductive layer 28.
In the conductive layer 28, 120 is formed on each side of the regular hexagon.
Projecting pieces U1, U2, U3 from three sides at each position
Is protruding. Each protruding piece is a horizontal piece 3 protruding horizontally.
2 and a rising piece 34 standing upright from the horizontal piece 32. A first external terminal projecting piece 38 for connecting the lead wire 36 from the outside projects from one side of the conductive layer 28. The first external terminal projecting piece 38 is provided with a caulking portion 40 for crimping the lead wire 36 (see FIG. 6).

The second connecting plate 24 has almost the same structure as the first connecting plate 22, but the projecting pieces V1, V2 and V3 project from three sides of each of the nine sides. Projecting pieces V1, V
The projecting positions of 2 and V3 are provided at positions displaced from the first connecting plate 22. Further, the second external terminal projecting piece 42 projects (see FIG. 6).

The third connecting plate 26 also has substantially the same structure as the first connecting plate 22, and the projecting pieces W1, W2, W3 project from three sides of each of the nine sides. Projecting pieces W1, W
The protruding positions of 2 and W3 are the first connecting plate 22 and the second connecting plate 24.
It is provided at a position deviated from it. Further, the third external terminal projecting piece 44 is shared with the projecting piece W3 (see FIG. 6).

The first connecting plate 22, the second connecting plate 24, and the third connecting plate 26 are laminated to form the wiring member 20.

Reference numeral 46 indicates a stator 1 as shown in FIG.
It is the 4th connection board for neutron points arranged in the lower part of 2. The fourth connection plate 46 is in the shape of a regular hexagonal ring, and projecting pieces d1 to d9 project from each side.

The method of assembling the motor 1 will be described in order.

The wiring member 20 is arranged below the stator 12, and the fourth connection plate 46 is arranged above the stator 12.

The upper ends of the tape-shaped coils 18 respectively wound around the protruding portions 16 of the stator 12 are connected to the protruding sides U 1, U 2, U 3, V 1, V 2, V 3 and W of the wiring member 22.
Weld to 1, W2, W3. In this welding method, as shown in FIG. 8, since the coil 18 is tape-shaped, the coil 1
The upper end of 8 is welded along the rising piece 34.
Thereby, the coil 18 can be easily attached to the wiring member 22.

The lower end portion of the coil 18 protruding from below the protruding portion 16 has the protruding pieces d 1 to d 9 of the fourth connecting plate 46.
Are welded to each part in the same manner as above.

The coil 18 of the stator 12 is wired according to the electric circuit shown in FIG.

After assembling as described above, the stator 1
2, the coil 18, the wiring member 20, and the fourth connection plate 46,
The tip portion of the lead wire 36 is integrally molded with a molding resin. As a result, the casing 2 of the motor 1 is completed. The tip of the lead wire 36 has a crimped portion 40.
The portion fixed by is attached to the bush 41 in advance, and this bush 41 is also integrally molded.

After the casing 2 is completed, as shown in FIG. 2, the rotor 4 is fitted into the cavity 3 inside the casing 2, and the rotor 4 is rotatably fixed to the casing 2 by the cover plate 5. To do. In this case, the cover plate 5 is screwed to the casing 2.

As shown in FIG. 6, the lead wire 3 is attached to the first external terminal projecting piece 38 (U4 in the electric circuit of FIG. 9).
Install 6. This mounting method is performed by the first external terminal projecting piece 3
8 (U4) by the caulking portion 40 provided. The lead wire 36 is similarly attached to the second external terminal projecting piece 42 (V4). The lead wire 36 is similarly attached to the third external terminal projecting piece 44 (W4).

With the motor 1 having the above structure, the stator 12
Also, since the wiring member 20 and the like are integrally molded with the molding resin, even when the motor 1 is attached to an automobile and used, the wiring does not come off due to the vibration of the automobile, etc., and the vibration resistance and the impact resistance are high. Is excellent. Further, since the casing 2 of the motor 1 is formed of the mold resin, the heat radiation effect of the motor 1 is promoted.

[0032]

As described above, in the on-vehicle motor of the present invention, the stator, the lead wire of the coil of the stator, the wiring member, etc. are molded with the molding resin.
Even when this motor is loaded in an automobile or the like and used, it has excellent vibration resistance and shock resistance. Therefore, the reliability of the motor can be improved.

[Brief description of drawings]

FIG. 1 is a front view of a motor showing an embodiment of the present invention.

FIG. 2 is a vertical sectional view of a motor.

FIG. 3 is a sectional view taken along line AA in FIG. 2;

FIG. 4 is a sectional view taken along line BB in FIG. 2;

FIG. 5 is an exploded perspective view of a wiring member.

FIG. 6 is a plan view of a wiring member.

FIG. 7 is a plan view of a fourth connection plate.

FIG. 8 is an explanatory diagram showing a state in which the coil is attached to the protruding piece.

FIG. 9 is an electric wiring diagram of the motor.

[Explanation of symbols]

 1 Motor 2 Casing 12 Stator 18 Coil 20 Wiring Member 22 First Connection Plate 24 Second Connection Plate 26 Third Connection Plate 32 Horizontal Piece 34 Standing Piece 36 Lead Wire

Claims (3)

[Claims] 1. An in-vehicle motor, characterized in that a stator, a lead wire of a coil of the stator and a wiring member for connecting the lead wire to the outside of the motor are molded with a molding resin. 2. The wiring member comprises a conductive conductive layer portion having a coil connecting portion and an external terminal portion, and an insulating layer portion laminated on the conductive layer portion, wherein the coil connecting portion has the coil. The motor for vehicle according to claim 1, wherein the lead wire is connected, and the lead wire is connected to the external terminal portion. 3. The wiring member has a substantially ring shape, the coil connecting portion and the external terminal portion project from an outer peripheral portion of the conductive layer portion, and a tape-shaped coil is wound around the stator. The in-vehicle motor according to claim 2, wherein the lead wire of the tape-shaped coil and the coil connection portion are electrically connected.