JPS639248Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a small rotating electric machine, and particularly to an improvement of a terminal block for connecting a stator winding and a power supply lead wire.

Currently, the connection between the stator coil of a small rotating electrical machine and the power lead wire is done by removing the respective coatings and connecting them by soldering, etc., and then passing an insulating tube through that part or using insulating tape. After that, the part is fixed with a binding wire or crimped with a crimp terminal, placed in the groove of the grooved terminal block, and then fixed together with hot melting resin, which requires relatively effort. Or, they required complicated processes involving huge amounts of facilities.

This invention was designed to eliminate such trouble, and one embodiment of this invention will be described below. That is, in the figure, 1 is the stator core,
2 is a frame into which this is inserted; 2a is a peripheral flange for tightening the bracket; 3 is a bracket that is tightened to the frame 2 using the peripheral flange 3a;
4 is a stator coil covered by this bracket 3;
Reference numeral 5 denotes a terminal block made of an insulator for connecting the connection lead-out end 4a of the stator coil to the core wire 6a of the power supply lead wire 6, which will be described later. The stepped locking portion 5a is fitted into the shoulder portion of the peripheral edge of the end face, and a plurality of winding grooves 5b for the power supply lead wire 6 are formed on the outer peripheral surface. Reference numeral 5c indicates a notch provided in the protruding portion of each groove 5b in order to lead out the core wire 6a of the lead wire 6 from the winding groove 5b.

In other words, the power supply lead wire 6 wound and housed in the winding groove 5b of the terminal block 5 is held in the wound state by the inner peripheral surface of the bracket 3 in the tightened state, and the power supply lead wire 6 drawn out from the notch 5c is The core wire 6a of the lead wire 6 is connected to the lead-out end 4 of the stator coil 4 as shown in the figure.
A is wrapped and soldered. In this state, the above connection point is connected to the stator coil 4.
Although they do not come into direct contact with the inner circumferential surface of the bracket 3, it is preferable to insert a simple insulating paper or the like between them, just in case.

Since the rotating electric machine of this invention is constructed as described above, there is no need to insert an insulating tube, which is time-consuming, at the connection point between the power supply lead wire 6 and the stator coil 4, and there is no need to bind these tubes. This method does not require complicated processes involving expensive equipment such as integrally fixing the parts together, and the connection and insulation treatment of the parts can be simplified accordingly.

[Brief explanation of the drawing]

The figures show an embodiment of a small rotating electrical machine of this invention, with FIG. 1 being a side sectional view showing the main parts thereof, and FIG. 2 being an end view thereof. In addition, 1 in the figure is the stator core,
2 is a frame, 3 is a bracket, 4 is a stator coil, 5 is a terminal block, and 5b is a winding groove for a power lead wire 6. In other figures, the same reference numerals indicate the same parts.

Claims (1)

[Scope of utility model registration request] In a small rotating electric machine, a stator core 1 equipped with a stator coil 4 is inserted into a frame 2, and a bracket 3 covering the end of the stator coil 4 is fastened to the end face of the frame 2. , a stator coil 4 having a winding groove 5b for the power lead wire 6 formed on the outer circumferential surface, and a notch 5c for leading out the power lead wire 6 in the protrusion between the winding grooves 5b.
The connecting terminal block 5 is attached to the peripheral edge of the end face of the stator core 1, and the power lead wire 6 housed in the winding groove 5b of the terminal block 5 is attached to the inner circumferential surface of the bracket 3. A small rotating electric machine that is characterized by being designed to suppress the noise.