JPH0624418B2 - Commutator motor assembly method - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric motor used in a vacuum cleaner for household appliances.

2. Description of the Related Art A conventional commutator motor will be described with reference to FIGS. First, FIG. 5 shows the structure of the field magnet, which comprises a winding coil 1, a field core 2 and a binding thread 4 for fixing the winding coil 1. Reference numeral 3 is a winding coil end formed by the element wire of the winding coil 1 as it is.

Next, FIG. 6 shows the configuration of the brush holder 7, 8 is a guide groove of the winding coil end 3 provided in the synthetic resin member 10 supporting the deformed tube 9, 11 is a power supply terminal, and 12 is the deformed tube 9. It is a terminal integrally formed with the. FIG. 4 shows the configuration of an electric motor using the field magnet and the brush holder. The brush holder 7 is attached to the outer wall of the bracket 5, and the opening 6 is provided at the position facing the brush holder 7. One of the winding coil ends 3 of the field coil 1 that has come out of the opening 6 of the bracket 5 is led out through the guide groove 8 of the brush holder 7 to secure an insulation distance from the bracket 5, It is connected to the power supply terminal 11 supported by the cage 7 by welding. The other winding coil end 3 is likewise led out through the guide groove 8 and is welded to the terminal 12 from the profiled tube 9.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in manufacturing such a commutator motor, first, when the field magnet is press-fitted and fixed to the bracket 5, the winding coil end 3 is connected to the mechanical jig and the field core 2. In order to prevent the bracket 5 from being bitten into a gap or the like, a preparatory work for neatly aligning the winding coil ends 3 was necessary before press fitting and fixing. Further, after the press-fitting and fixing, the winding coil end 3 is drawn out from the opening 6 and when connecting to the power supply terminal 11 and the terminal 12, the position of the winding coil end 3 end is not fixed, so that mechanization cannot be achieved and manual work is performed. I was there. Therefore, the work is complicated and the quality is unstable.

The present invention solves such conventional problems, and provides a field structure that can streamline the manufacturing of the field itself and can automate the above-mentioned drawing and wiring work. is there.

Means for Solving the Problems In order to solve the above problems, a commutator motor according to the present invention provides a winding coil insulator on a core end surface of a field, and the winding coil end is integrated with the insulator. A pillar for fixing is formed, and the magnet wire is deposited in this pillar. After the field including the insulator is press-fitted and fixed to the bracket, the magnet wire is removed from the pillar portion, pulled out from the bracket window, and welded to the power supply terminal and the terminal.

Effect The present invention has the above-described configuration, and in the field manufacturing process, it is possible to automatically deposit the magnet wire on the column portion after the winding work, there is no idle coil end, and subsequent handling such as transportation is very easy. Becomes Further, when the field magnet is press-fitted and fixed to the bracket, there is no concern that the coil end is caught, and the work can be performed easily and surely. When the coil end is pulled out after fixing, the coil end is temporarily fixed to the pole part of the field, so the position is constant, and it can be easily removed from the pillar part by a robot etc. and pulled out from the bracket window. Can be welded to power terminals and terminals.

Embodiment A commutator motor according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 and FIG. 2 show the structure of the field in the embodiment of the present invention, in which the winding coil insulator 1 is provided above and below the field core 2.
3 and 14 are provided. Therefore, the coils are separated during the winding work, and the work of reworking for securing the insulation distance is unnecessary. And 15 is a pillar portion for depositing the coil end 3,
It is made by integral molding with the insulator 13. As shown in FIG. 3, the pillar portion 15 has a structure in which the coil end 3 has an opening 15
Insert from a, let the narrow part 15b pass, circular part 15c
Hold in. Since the narrow portion 15b is narrow, it serves as a retainer.

The manufacturing process will be described step by step.
The coils 3 and 14 are fixed by a jig, and then the coil 1 is wound by an automatic machine. Then, the coil end 3 of the coil 1 is inserted and fixed to the pillar portion 15 at eight positions.

As shown in FIG. 4, this field is attached to the bracket 5 as described above.
Then, the coil end 3 temporarily fixed to the field is removed from the column portion 15 and connected to the power supply terminal 11 and the terminal 12 of the brush holder 7. At this time, since the position of the coil end 3 is constant, a machine such as a robot can automatically remove, draw out, and connect the wires.

As described above, according to the present invention, the insulator is provided on the end surface of the field core, and the coil does not come apart during the winding work, and the reworking work after the winding to secure the insulation distance is not necessary. By entrusting the coil end to the pillar portion that is integrally provided with, the conventional thread binding for coil fixing is unnecessary, and since the coil end is fixed, it becomes very easy to carry during the subsequent assembly process, It also greatly contributes to the stability of quality. And
When the field is press-fitted into the bracket, there is no need to bite the coil and align the coil end before press-fitting, and the coil end is in a fixed position after press-fitting. It is possible to perform a series of work such as pulling out from the opening of the bracket and connecting to the power supply terminal.

As described above, the commutator motor using the field structure of the present invention can be greatly automated in winding, assembly, and conveyance to reach a reduction in the number of work steps and stability in quality. It has an effect.

[Brief description of drawings]

FIG. 1 is a front view of a field magnet according to an embodiment of the present invention, and FIG.
1 is a side view of FIG. 1, FIGS. 3a and 3b are a plan view and a front view of a column portion integrally provided with a field insulator, and FIG. 4 is a perspective view of a commutator motor, and FIG. Is a perspective view of a conventional field,
6a and 6b are front and side views of the brush holder. 1 ... coil, 2 ... core, 3 ... coil end, 5 ... bracket, 6 ... opening, 7 ... brush holder, 11 ...
… Power supply terminal, 12 …… Terminal, 13,14 …… Insulator, 1
5: Pillar.

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Ikuo Hata 1006 Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Akira Yamaguchi 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. ( 56) References JP-A-59-127571 (JP, A) JP-A-59-113763 (JP, A) Actually developed 55-2202 (JP, U)

Claims (1)

[Claims] 1. A column portion for fixing a winding coil end is integrally formed with a winding coil insulator provided on an end face of a field core so as to project therefrom.
On the other hand, in the method of assembling a commutator motor, wherein the bracket has an opening at a position facing the brush retainer portion and the power supply terminal portion, in the bracket, the field core is fixed to the pillar portion with the winding coil end fixed. A method of assembling a commutator motor, which comprises fixing the winding coil end inside, removing the winding coil end from the pillar portion, and connecting and fixing the winding coil end to the brush holder portion and the power supply terminal portion.