JPH1118347A - Motor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a wire connection work in a lead wire connecting method of a motor used in a hosehold electric machine. SOLUTION: An end plate 1 has a plurality of tube parts 1a through which lead wires molded by resin like polyester pass. Core-peeled lead wires 2 are inserted in the tube parts 1a of the end plate 1, Lead wire cores 2a are led out from one ends of the tube parts 1a. Coils 3 are wound around the lead wire cores and connected by soldering. The end plate 1 is fixed on the side face of a winding end by using a thread, bands, etc. Work can be simplified by reducing the manhours of wire connection and the number of components.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for connecting lead wires of an electric motor used in household electric equipment.

[0002]

2. Description of the Related Art Conventionally, there are many known methods for connecting a lead wire directly to a winding end as a method for connecting a lead wire of a motor.

FIG. 4 shows a state diagram of a conventional electric motor lead wire connection method, in which a stator winding terminal 3 is wound around a cored lead wire 2 and soldered. A lead wire connection method is used in which the insulating tube 5 and the lead wire 2 are tied to the covering winding end with a thread 6.

[0004]

In recent years, electric motors have been demanded to be inexpensive, and there has been a demand for simplification of work by reducing the number of connection steps and the number of parts.

An object of the present invention is to simplify the operation in such a method of connecting lead wires of a motor.

[0006]

An electric motor according to the present invention comprises an end plate made of a synthetic resin having a tubular portion, a lead wire of the electric motor inserted into the tubular portion, and a stator winding wound around a stator core. By fixing the end plate to the side surface of the coil end portion of the stator winding, by performing the electrical connection process by winding the end of the stator winding around the end peeling portion of the lead wire, Since the number of connection steps is reduced and the number of parts is reduced, the operation can be simplified and the cost can be reduced.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An electric motor according to the first aspect of the present invention is wound around an end plate made of a synthetic resin having a tubular portion, a lead wire of the motor inserted into the tubular portion, and a stator core. A stator winding was provided, the end plate was fixed to a side surface of a coil end portion of the stator winding, and an end of the stator winding was wound around a peeled end of the lead wire to perform an electrical connection process. This configuration has the effect of simplifying the operation and reducing the cost by reducing the number of connection steps and the number of parts.

Further, the electric motor according to the second aspect of the present invention is provided with a convex portion extending from the end opposite to the insertion side of the tubular portion, and the stator winding is formed so as to surround the convex portion and the stripped end of the lead wire. This is a configuration in which the terminal is wound, and has the effect of stabilizing the connection work.

Further, in the electric motor according to the present invention, a lead wire of the electric motor, a groove for accommodating the lead wire, a projection provided in the groove to bend the lead wire, and the projection are sandwiched. An end plate provided with a claw portion for holding the lead wire, and a stator winding wound around a stator core, wherein the end plate is fixed to a side surface of a coil end portion of the stator winding, This is a configuration in which the terminal of the stator winding is wound around the exfoliated portion of the lead wire to perform an electrical connection process, and has an effect of facilitating insertion of the lead wire and preventing the lead wire from coming off.

[0010]

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

FIG. 1 shows an embodiment of a method for connecting lead wires of a motor according to the present invention, wherein a lead whose center is centered on an end plate 1 having a plurality of tubular portions 1a through which leads formed of a resin such as polyester pass. The wire 2 is inserted into the tubular portion 1a of the end plate 1, and the lead wire 2a is put out at one end of the tubular portion 1a,
The stator winding terminal 3 is wound around the lead wire core 2a, connected and soldered, and the end plate 1 is fixed to the side surface of the coil end portion using a thread, a band, or the like, thereby reducing the number of connection steps. In addition, the operation can be simplified by reducing the number of parts.

FIG. 2 is an enlarged view of a connection portion when a convex portion is provided on the end plate. A convex portion 1b is provided at one end of the tubular portion 1a of the end plate 1, and the convex portion 1b and the lead wire core 2a are connected to each other. The stator winding terminal 3 is wound around the stator winding terminal 3 to stabilize the connection work.

FIG. 3 is an enlarged view of the connection portion when using an end plate provided with claws at both ends of the projection provided in the groove, and a projection 1d provided in the groove 1c instead of the tubular portion of the end plate. The end plate 1 provided with claws 1e at both ends thereof is used to insert a lead wire, and has a function of facilitating insertion of a lead wire for connection work and preventing the lead wire from coming off. .

In the above description, an example has been described in which the connection between the core wire of the lead wire and the winding is performed by soldering. However, the present invention can be similarly applied to terminal crimping.

[0015]

As described above, according to the first aspect of the present invention,
The advantageous effect that the work can be simplified by reducing the number of connection steps and the number of parts can be obtained.

According to the second aspect of the present invention, the leading end of the lead wire is fixed and stabilized, so that the effect of easily winding the stator winding end can be obtained.

According to the third aspect of the present invention, the lead wire can be fixed only by being housed in the groove and held by the claw, and the lead wire is forcibly bent by the protrusion provided in the groove, so that the length is increased by the frictional force. Since the lead wires are hard to come off in the vertical direction, the operation is easy and the effect of high reliability is obtained.

[Brief description of the drawings]

FIG. 1 is a diagram showing a method of connecting lead wires of an electric motor according to an embodiment of the present invention.

FIG. 2 is an enlarged view of a connection portion when a projection is provided on an end plate according to another embodiment of the present invention.

FIG. 3 is an enlarged view of a connection portion when using an end plate provided with claws on both sides of a projection provided in a groove according to another embodiment of the present invention.

FIG. 4 is a diagram showing a conventional method of connecting lead wires of a motor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 End plate 1a Tubular part 1b Convex part 1c Groove part 1d Protrusion 1e Claw 2 Lead wire 2a Lead wire core 3 Stator winding end 4 Soldering part 5 Insulating tube 6 Thread

Claims (3)

[Claims] An end plate made of a synthetic resin having a tubular portion;
A lead wire of an electric motor inserted into the tubular portion, and a stator winding wound around a stator core, wherein the end plate is fixed to a side surface of a coil end portion of the stator winding, and a tip of the lead wire An electric motor in which an end of the stator winding is wound around a peeling portion to perform an electrical connection process. 2. An end portion of a stator winding is provided so as to extend from a non-insertion side end of the tubular portion, and to surround the protrusion and the exfoliated portion of the lead wire tip. Electric motor. 3. A lead wire of an electric motor, a groove for accommodating the lead wire, a projection provided in the groove for bending the lead wire, and a claw for holding the lead wire disposed so as to sandwich the projection. End plate, and a stator winding wound around a stator core, the end plate is fixed to the side surface of the coil end portion of the stator winding, and An electric motor in which the terminals of the stator windings are wound and electrical connection processing is performed.