A brush holder assembly for an automobile radiator fan motor

Abstract

The invention discloses a brush carrier assembly used for a car radiator fan motor. The brush carrier assembly comprises a brush carrier plate, a carbon brush assembly and an inductor. The brush carrier plate comprises a brush carrier plate body and a conducting strip. The brush carrier plate body is provided with a carbon brush mounting area and an inductor mounting area. The carbon brush assembly is mounted in the carbon brush mounting area. The inductor is mounted on the inductor mounting area through an inductor mounting structure. The carbon brush mounting area comprises a carbon brush mounting groove, and the carbon brush assembly is mounted on the carbon brush mounting groove. A carbon brush connecting wire of the carbon brush assembly is connected with the conducting strip through a connecting structure. The connecting structure comprises a fence extending from the obverse of the brush carrier plate body in a convex mode. The conducting strip is used for being exposed at the fence together with a carbon brush connecting area connected with the carbon brush connecting wire. The fence is provided with a wire embedding gap allowing the carbon brush connecting wire to penetrate through conveniently. The carbon brush connecting wire of the brush carrier assembly is convenient to wire and weld, so the welding technology difficulty is lowered, welding slag is prevented from spattering, the amount of the welding slag entering the carbon brush assembly is reduced, and smooth movement of a carbon brush is ensured.

Description

technical field [0001] The invention relates to a brush holder assembly, in particular to a brush holder assembly for an automobile radiator fan motor. Background technique [0002] The car radiator fan mainly relies on the motor to drive the fan to rotate to dissipate heat. The basic principle of motor rotation is that the current-carrying conductor will be subjected to force in the magnetic field. One function of the brush holder plate inside the motor is to fix and install the carbon brush assembly, and the other function is to arrange the circuit and connect the carbon brush to the circuit. The invention application with the patent number ZL200710045519.1 discloses a car radiator fan motor brush holder assembly. The brush holder assembly includes a brush holder plate body, a conductive sheet, a brush assembly and an inductor, and capacitors are configured according to customer needs. However, the brush group assembly of this invention application has the following defec...

AI Technical Summary

Problems solved by technology

However, the brush group assembly of this invention application has the following defects: 1. The wiring of the carbon brush connecting wire of the carbon brush assembly is unreasonable, and welding slag will be produced when welding between the carbon brush connecting wire and the conductive sheet, and the welding slag is easy to weld. Splash, and once the welding slag splashes on the carbon brush assembly, it will cause the carbon brush to move unsmoothly, which seriously affects the use of the carbon brush; 2. Although the end of the carbon brush connection line is welded with the conductive sheet, the carbon brush will wear When moving closer to the center, the motor will vibrate during operation, which will cause the end of the carbon brush connection wire connected to the carbon brush to contact the exposed part of the conductive sheet, resulting in a short circuit

3. The installation of the inductance of the carbon brush assembly is supported by two U-shaped inductance supports. Reasonably, one pin of the capacitor is welded with the conductive sheet, and the other pin needs to be grounded, and the capacitor is directly fixed by spot welding with the conductive sheet, so the capacitor is fixed very weakly, and the spot welding position is easy to loose, and the welding process high difficulty

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