JPH09140102A - Motor rotor winding and commutator connection method - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: In a commutator motor used for various electric devices, shaping work for reducing quality defects in a current welding process of a rotor winding and a commutator and for securing a wire insulation distance. It is an object of the present invention to provide a commutator motor with high quality and excellent productivity by enabling automation of the above. SOLUTION: The welding current at the time of energization welding is switched by detecting the winding start and winding end hook positions so that welding is always performed at an optimum current value. In addition, the shaping operation for securing the insulation distance between lines can be automated by operating with this position symbol.

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 a motor rotor winding and a commutator, which is effective in stabilizing quality and improving productivity.

[0002]

2. Description of the Related Art In recent years, commutator motors have come to be widely used as AC blower motors for vacuum cleaners and DC motors for driving various devices because of their low cost and good physical efficiency.

A conventional method for connecting a motor rotor winding and a commutator of a commutator motor will be described below with reference to the drawings.

FIG. 2 shows the connection state of the winding and the winding end of the motor rotor winding of the conventional commutator motor to the commutator. In FIG. 1, 1 is a winding start and winding end hook, 2 is another hook, 3 is a commutator, 41 is a magnet wire, and 5 is a shaping rod.

After the winding, the welding currents of the commutator hook and the magnet wire are the same in the winding start and winding end hooks 1 and the other hooks 2. Further, after the welding is completed, a shaping operation is performed by a shaping rod 5 for securing a line distance between the winding start and winding end hook 1 and another hook 2 adjacent to the winding end portion 1 by hand.

[0006]

However, in the above-described method, the winding start and winding end hooks must weld two magnet wires, whereas the other hooks use one magnet wire. Since it suffices to weld the hooks, if these hooks are all welded at the same current value, the welded state cannot be made uniform, and there is a problem that defective welding tends to occur.

Further, since the shaping operation for securing the line distance between the winding start and winding end hooks and the adjacent hook is manually performed, the productivity is poor and there is a problem in terms of quality stability.

The present invention solves the above-mentioned problems of the prior art by improving the welding quality of the shaper hook and the magnet wire and automating the shaping operation for ensuring the distance between the wires, resulting in high quality and high productivity. It is an object of the present invention to provide a method for connecting a motor rotor winding and a commutator.

[0009]

In order to achieve this object, the method for connecting the motor rotor winding and the commutator of the present invention detects the positions of the winding start and winding end hooks by a sensor, and based on this signal. It has a configuration in which the value of the energizing current at the time of welding is controlled and the shaping blade is operated to perform shaping for ensuring the distance between adjacent lines.

[0010]

With this structure, it is possible to perform welding with an optimum welding current value according to the number of magnet wires hooked on the hooks, so that welding with high quality becomes possible.

Further, the shaping operation for securing the line distance between the winding start and winding end hooks and the adjacent hooks can also be performed by an automatic machine by detecting the position, so that the stability of productivity and quality is greatly improved. Can be improved.

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 (a) is a method for temporarily crimping the winding start and winding end hooks of a motor rotor winding in one embodiment of the present invention, and FIG. 1 (b) is a method for detecting the temporary crimping portion and securing a line distance. This shows the shaping method. FIG.
In (a), 1 and 4 are hooks at the beginning and end of winding, 3 is a commutator, 41 and 42 are magnet wires, and 6 is a tongue guide (temporary caulking jig). In FIG. 1B, 7 is a detection lever, 8 is a sensor that detects the winding start and winding end hook positions by the movement of the detection lever, and 9 is a shaping blade.

The operation of the method of connecting the motor rotor winding and the commutator configured as described above will be described below. First, the winding start end portion of the magnet wire 41 is hooked on the winding start and winding end hooks 1 to perform winding in the first slot, and then the magnet wires 4 are attached to the adjacent hooks.
1 is wound once and hooked, and the operation of winding the wire in the second slot without cutting is sequentially repeated, and the winding end end of the magnet wire 41 and the winding start end of the second magnet wire 42 are It is hooked on the winding start and winding end hooks 4. After that, the tongue guide 6 advances to temporarily crimp the hook 4. Hereinafter, the second magnet wire 42 is also referred to as the first magnet wire 4
Winding is performed in the same manner as in No. 1, and the winding end end of the magnet wire 42 is hooked on the same hook 1 as the winding start end of the first magnet wire, and then the tongue guide 6
Moves forward and temporarily crimps hook 1.

Next, the hooks and magnet wires are welded by current welding, but since the winding start and end hooks 1 and 4 have been temporarily crimped, the detection lever 7 is in the position shown by the solid line and the sensor 8 is attached. Operates to control the current value of the welding current to be optimum. At the same time, the shaping blade 9 operates to perform shaping for ensuring the insulation distance between lines.

As described above, by providing the means for detecting the winding start and winding end hooks, the current value of the current welding can be controlled to the optimum value, and furthermore, the winding which has conventionally been performed manually. Since the shaping work for securing the insulation distance between the start and end hooks and the wires on both sides can be automated, it is possible to realize a high quality and productive connection between the rotor winding and the commutator.

In the present embodiment, two sets of rotor winding groups composed of two magnet wires have been described, but it goes without saying that the same applies to other cases.

[0017]

As described above, the present invention can realize a high-quality and highly productive method of connecting a stator winding and a commutator by detecting the winding position and the winding end hook position.

[Brief description of the drawings]

FIG. 1A is a diagram showing a method of temporarily crimping winding start and winding end hooks of a motor rotor winding according to an embodiment of the present invention. FIG. 1B is a motor rotor winding according to an embodiment of the present invention. Diagram showing the temporary caulking part detection method and the shaping method for securing the distance between lines

FIG. 2 is a diagram showing a winding start and winding end connection state of a conventional motor rotor winding.

[Explanation of symbols]

 1,4 Winding start and winding end hook 2 Other hooks 3 Commutator 5 Shaping rod 6 Tongue guide 7 Detection lever 8 Sensor 9 Shaping blade 41,42 Magnet wire

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Sadao Sakaguchi 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Reiji Kuroda 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (3)

[Claims] 1. A commutator assembly comprising a plurality of commutator pieces, each having a hook for hooking a magnet wire, arranged in a cylindrical shape, wherein one end of the magnet wire winding start portion is hooked on one of the hooks. After winding the wire in the first slot, the magnet wire is wound once around the adjacent hook and hooked, and the wire is wound in the second slot without cutting. Is wound on the same hook as the winding start end (hereinafter referred to as winding start and winding end hook), and then each hook and the magnet wire hooked on this hook are welded by heat generated by energization. In the connection method of the commutator and the commutator, a sensor for detecting the winding start and winding end hook positions is provided, and the energizing current during welding is determined based on the detection signal from this sensor. Connecting method of the motor rotor and the commutator, characterized in that changing Ri. 2. The motor rotor according to claim 1, wherein only the winding start and winding end hooks are deformed by pressing from the outer peripheral direction of the commutator to perform temporary caulking, and the deformed portion is detected by a sensor. How to connect winding and commutator. 3. The winding wire is actuated at the winding start and winding end hook positions detected by the sensor to shape the magnet wire to secure a wire-to-wire distance. Motor rotor winding and commutator wiring method.