JPH08126255A - Motor - Google Patents

Abstract

PURPOSE: To provide a motor which improves the work efficiency, concerning the termination of the winding of the stator of a motor and the lead wire of a revolution detecting board. CONSTITUTION: Winding 2 is wound on a stator iron core 1, and the lead wire 2a of the same lead wire 2a is wound on the pin terminal 4a provided at an insulator 4a, and it is connected to a connecting board 5, and thereon the connector B6a of the revolution detecting board 6 is connected to the connector A5a of the connecting board, and the revolution detecting board is connected to the lead wire 7 through the connecting board, while one end of the revolution detecting board is fixed, and the other end is caught between the step 3a of a resin mold 3 and a bracket 10, and the lead wire to outside is passed through the same lead bush 9, and they are connected in a lump to the same connector 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric motor, and more particularly to a terminal treatment of a winding wire of a stator and a lead wire of a rotation speed detecting board.

[0002]

2. Description of the Related Art Conventionally, the connection of a lead wire of a winding of a stator used in an electric motor is shown in FIG. 5 and its BOB 'sectional view.
As shown in FIG. 2, the stator core 1 is wound with the winding 2, and the lead wire 2a of the winding is provided on the insulator 4 for the pin terminal 4a.
It is wound around and soldered, and the pin terminal is inserted into the mounting hole provided in the connection board 5 provided on one side of the stator, and soldered again to connect between the windings, and the lead wire 7 to the outside is connected.
C was supported by the lead bush 9 and connected to the connector 8. Further, the rotation speed detection element 6c cannot be mounted on the connection board in order to avoid the high temperature at the time of resin molding and ensure reliability, and the rotation speed detection board 6 is provided and mounted, and the insulator 4 is mounted on the other side of the stator. It was fixed and the lead wire 7a and the connector 8a to the outside were separately provided. For this reason, the lead wire and the connector must be taken out from both sides of the electric motor, and the number of parts is large and the work efficiency is poor.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and the mounting of the connection board of the lead wire of the winding of the stator used in the electric motor and the rotation speed detection board is performed once. It is an object of the present invention to provide an electric motor which can be used in the above-mentioned method and which can reduce the number of connectors used and improve the efficiency of the mounting work.

[0004]

In order to achieve the above object, a winding is wound around a groove portion of a stator core, and a lead wire of the winding is wound around a pin terminal provided in an insulator. Insert into the hole of the connection board, connect the windings by soldering, connect to the lead wire to the outside, and fix the connection board with the pin terminal, In a motor provided with a detection board and a bracket on one side of a stator, a pattern A for connecting to the rotation speed detection board is formed on the connection board, and a connector A is connected to one end of the connection board while the pattern is connected to the rotation speed detection board. Connector B
Form a pattern B to connect with the connector B at one end
Is mounted, the connector A and the connector B are connected, and the rotation speed detection board is connected to a lead wire to the outside through the connection board. The outside of the stator is resin-molded, and one end of the rotation speed detection board is supported by the connector A and the connector B on the connection board, while the other end is a stepped portion and a bracket provided in the resin-molded portion. It is characterized by being sandwiched between. Alternatively, it is characterized in that the step portion of the fitting portion of the connector A and the connector B is deepened by the height thereof.
Alternatively, the connector A and the connector B are composed of pressure contact terminals and are connected by fitting a bracket. The lead wire to the outside is connected to the outside using the same lead bush. Further, the same connector is connected to the lead wire to the outside.

[0005]

According to the above structure, the winding is wound in the groove of the stator core, the lead wire of the winding is wound around the pin terminal provided on the insulator, and the pin terminal is inserted into the hole of the connection board. Then, connect the windings by soldering, connect to the lead wire to the outside, fix the connection board with the pin terminals, and fix the rotation speed detection board equipped with the rotation speed detection element and the bracket. In a motor provided on one side, a pattern A for connecting the rotation speed detection board to the connection board
And the connector A is connected to one end of the connector A, and the pattern B for connecting to the connector B is formed on the rotation speed detection board.
And a connector B are connected, the rotation speed detection board is connected to an external lead wire via the connection board, and the outside of the stator is resin-molded, and one end of the rotation speed detection board is The connector A and the connector B support the connection board while sandwiching the other end between a step portion provided on the resin mold portion and a bracket, or the step of the fitting portion of the connector A and the connector B. Or the connector A and the connector B are formed by pressure contact terminals and connected by fitting a bracket, and one end of the rotation speed detection board is connected to the connector A.
And the connector B to support the connection board, and the other end is sandwiched between the step portion provided in the resin mold portion and the bracket, and the lead wire to the outside is connected to the outside using the same lead bush. Since the same connector is connected to the lead wire to the outside, it is possible to reduce the number of parts and improve the efficiency of mounting work.
Further, the lead bush can prevent water from entering.

[0006]

Embodiments of the present invention will be described in detail with reference to the accompanying drawings. Here, the same reference numerals are used for the same parts as the conventional ones. A stator of an electric motor according to the present invention has a stator core 1, a winding 2, a lead wire 2a of the winding, and a step portion 3a on one side, as shown in FIG. 1, which is a cross-sectional view of AOA 'of FIG. A resin mold part 3, an insulator 4 for insulating the stator core and the winding, a plurality of pin terminals 4a provided on one side of the insulator, and a connector A5a for connecting a rotation speed detection board as shown in FIG. And lead wire interconnection pattern A5
The connection board 5 provided with b, the rotation speed detection element 6c and the connector B6a fitted with the connector A are mounted, and the rotation speed detection board 6 provided with the connection pattern B6b, the lead wire 7, the external connector 8, the lead bush 9 , Bracket 10, etc. The insulator 4 is attached to the teeth of the stator core 1.
Is attached to wind the winding 2, and the lead wire is drawn from the winding. Further, a pin terminal is also provided on the insulator in the axial direction. Here, one end of the pin terminal is integrally resin-molded with the insulator, and the end of the lead wire is wound around the upper portion of the pin terminal. Then, the pin terminals are inserted into the holes of the connection board, soldered to connect the windings, connected to the lead wire 7 to the outside, and the connection board is fixed to the insulator by the pin terminals. . Further, the pattern A of the connection board is connected to the connector A. Here, the outside may be resin-molded. On the other hand, the pattern B of the rotation speed detection board is
Connected to connector B.

Next, the connection state of the connection board and the rotation speed detection board will be described. By fitting the connector A and the connector B, the lead wire of the rotation speed detection board is connected to the lead wire 7 to the outside through the connection board. Further, one end of the rotation speed detection board is connected to the connector A.
While being supported by the connector B on the connection board, the other end is sandwiched between the step portion provided on the resin mold portion and the bracket. Alternatively, the step portion of the fitting portion between the connector A and the connector B may be deepened by the height thereof. Alternatively, the connector A and the connector B may be configured by pressure contact terminals and connected by fitting a bracket. On the other hand, the lead wire to the outside is connected to the outside using the same lead bush 9. Also,
The same connector 8 is connected to the lead wire to the outside.

[0008]

As described above, in the present invention, the winding is wound around the groove portion of the stator core, and the lead wire of the winding is wound around the pin terminal provided in the insulator, and the pin terminal is connected to the connection board. And a lead wire to the outside, the connection board is fixed by the pin terminal, and a rotation speed detection board is mounted with a rotation speed detection element. In an electric motor having a bracket on one side of a stator, a pattern A for connecting to the rotation speed detection board is formed on the connection board, and a connector A is connected to one end of the pattern A while a connector B is connected to the rotation speed detection board. A pattern B for connection is formed, a connector B is attached to one end of the pattern B, the connector A and the connector B are connected, and the rotation speed detection board is connected to an external lead wire through the connection board. , The above Outside of the child is resin-molded, one end of the rotational speed detection substrate the connector A and connector B
While being supported on the connection board by the above, the other end is sandwiched between the stepped portion provided on the resin mold portion and the bracket, or the stepped portion of the fitting portion of the connector A and the connector B is raised. Or the connector A and the connector B are composed of pressure contact terminals and connected by fitting a bracket, and the lead wire to the outside is connected to the outside using the same lead bush, Also,
Since the same connector is connected to the lead wire to the outside, the number of parts and the mounting work can be reduced, and the lead bush can prevent water from entering.
As a result, cost reduction and outdoor use are possible, the reliability of the electric motor can be increased, and the efficiency of the mounting work in the manufacturing process can be improved.

[Brief description of drawings]

1 is a cross-sectional view of a stator of an electric motor according to the present invention in which a connection board and a rotation speed detection board are mounted thereon, and corresponds to AOA 'in FIG.

FIG. 2 is a plan view of a stator of an electric motor according to the present invention.

FIG. 3 is an enlarged plan view of an essential part of a connection board and a rotation speed detection board of the electric motor according to the present invention.

FIG. 4 is a cross-sectional view in which a connection board and a rotation speed detection board are attached to a stator of a conventional electric motor, and corresponds to BOB ′ in FIG.

FIG. 5 is a plan view of a stator of a conventional electric motor.

[Explanation of symbols] 1 stator core 2 winding 2a lead wire 3 resin mold part 3a step part 4 insulator 4a pin terminal 5 connection board 5a connector A 5b pattern A 6 rotation speed detection board 6a connector B 6b pattern B 6c rotation Number detection element 7 Lead wire 8 Connector 9 Lead bush 10 Bracket

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koji Mori 1116 Suenaga, Takatsu-ku, Kawasaki City, Fujitsu General Ltd. (72) Inventor Yuji Soma 1116 Suenaga, Takatsu-ku, Kawasaki City, Fujitsu General Ltd.

Claims (6)

[Claims] 1. A winding is wound around a groove portion of a stator core, the lead wire of the winding is wound around a pin terminal provided on an insulator, and the pin terminal is inserted into a hole of a connection board and soldered. Connection between the windings, connecting to the lead wire to the outside, fixing the connection board with the pin terminals, and providing a rotation speed detection board equipped with a rotation speed detection element and a bracket on one side of the stator. In the electric motor, a pattern A for connecting to the rotation speed detection board is formed on the connection board, a connector A is connected to one end of the connection board, and a pattern B for connecting to the connector B is formed on the rotation speed detection board. A motor, characterized in that a connector B is attached to one end, the connector A and the connector B are connected, and the rotation speed detection board is connected to an external lead wire via the connection board. 2. The outside of the stator is resin-molded, and one end of the rotation speed detection board is provided with the connector A and the connector B.
The electric motor according to claim 1, wherein the electric motor is supported on the connection substrate by means of and the other end is sandwiched between a step portion provided on the resin mold portion and a bracket. 3. The electric motor according to claim 2, wherein the step portion of the fitting portion between the connector A and the connector B is deepened by the height thereof. 4. The electric motor according to claim 2, wherein the connector A and the connector B are composed of pressure contact terminals and are connected by fitting a bracket. 5. The electric motor according to claim 1, wherein the lead wire to the outside is connected to the outside using the same lead bush. 6. The same connector is connected to the lead wire to the outside, as claimed in claim 1,
The electric motor according to claim 3 or claim 4.