6-pole 7-slot 14-hook brush motor

Abstract

A 6-pole 7-slot 14-hook brush motor disclosed by the present invention comprises an armature part, a magnet part, a casing and a brush carrier, magnets are installed in the casing through a magnet holder, the armature part is installed in a casing assembly, and the magnet part surrounds the periphery of the armature part. And an armature framework of the armature part is provided with seven winding grooves and adopts a 14-hook commutator. The invention provides a 6-pole 7-slot 14-hook brush motor. The performance can be improved by about 20% on the basis of the size of an original motor. And the motor is higher in performance and has more competitive advantages when the size is the same. Due to the fact that the six-pole magnet is adopted, a magnetic circuit is shortened in a magnetic field, the thickness of the magnet is smaller than that of a four-pole magnet, needed magnetic materials are few, and cost reduction is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of brush motor, in particular to a 6-pole 7-slot 14-hook brush motor. BACKGROUND

[0002] With the continuous development of science and technology and the continuous competition of products, the motor function requirements of automobile window, door lock, sunshade curtain, seat adjustment, headrest adjustment, side door and tail door are increasing. The motors currently used in these applications on the market are 4-pole brush motors. The motor performance, from materials to cost, has been optimized.

[0003] Therefore, a 6-pole 7-slot 14-hook DC brush motor is developed to improve the torque density of the motor. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a 6-pole 7-slot 14-hook brush motor to improve the torque density of the motor in view of the low torque density of the 4-pole brush motor.

[0005] The technical problem to be solved by the present application can be solved by the following technical scheme: A 6-pole 7-slot 14-hook brush motor, comprising an armature part, a magnet part, a housing and a brush holder, the armature part and the magnet part are installed in the housing through the brush holder, and the magnet part surrounds the outer periphery of the armature part, characterized in that the magnet part adopts a 6-pole structure, and the armature skeleton of the armature part has 7 winding slots and adopts a 14-hook commutator.

[0006] In a preferred embodiment of the present application, the magnet part comprises a magnet holder and three magnet tiles, the magnet holder is a cylindrical structure, three magnet tile accommodating cavities are uniformly arranged on the cylinder wall of the cylindrical structure, and the three magnet tiles are circumferentially arranged in the corresponding magnet tile accommodating cavities.

[0007] Due to the adoption of the above technical scheme,

[0008] The present application provides a 6-pole 7-slot 14-hook brush motor, which can improve the performance by about 20% based on the original motor size. The motor performance is higher in the same size, and has more competitive advantage. Due to the adoption of 6-pole magnet, the magnetic circuit is shortened in the magnetic field, so the thickness of the magnet is thinner than that of the 4-pole magnet, and the required magnetic material is less, which helps to reduce the cost. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 It is an outline drawing of the 6-pole 7-slot 14-hook brush motor of the present application.

[0010] Fig. 2 It is an exploded schematic view of the 6-pole 7-slot 14-hook brush motor of the present application.

[0011] Fig. 3 A decomposition diagram of the magnet part of the present application.

[0012] Fig. 4 A structural diagram of the armature part of the present application.

[0013] Fig. 5 An end face diagram of the armature part of the present application.

[0014] Fig. 6 An end face diagram of the armature part and the magnet part of the present application. DETAILED DESCRIPTION

[0015] The present application will be further described in conjunction with the accompanying drawings and specific embodiments.

[0016] Referring to Figs. 1 to 6 , a 6-pole 7-slot 14-hook brush motor shown in the figure comprises an armature part 100, a magnet part 200, a casing 300 and a brush holder 400, the magnet part 200 is installed in the casing 300 through a magnet holder 210, and the armature part 100 is installed in the casing 300. The power supply connecting pieces 110, 120 and the grounding connecting piece 130 on the armature part 100 pass out of the casing 300 through the brush holder 400.

[0017] The magnet part 200 surrounds the periphery of the armature part 100, the magnet part 200 adopts a 6-pole structure, and the armature skeleton 140 of the armature part 100 has 7 winding slots 150 and adopts a 14-hook commutator 160.

[0018] The magnet part 200 comprises the magnet holder 210 and three magnet tiles 220, the magnet holder 210 is a cylindrical structure, three magnet tile accommodating cavities 211a are arranged on the cylinder wall 211 of the cylindrical structure in a uniform manner, and the three magnet tiles 220 are arranged in the corresponding magnet tile accommodating cavities 211a in a uniform manner.

[0019] The present application provides a 6-pole 7-slot 14-hook brush motor, which can improve the performance by about 20% on the basis of the original motor size. See Table 1. Table 1 .

Claims

1. A 6-pole 7-slot 14-hook brush motor comprising an armature portion, a magnet portion, a housing, and a brush holder, said armature portion and magnet portion being installed in said housing through said brush holder, said magnet portion being surrounded around the outer periphery of said armature portion, characterized in that, The magnet part adopts a 6-pole structure, and the armature frame of the armature part has 7 winding slots and adopts a 14-hook commutator.

2. A 6-pole 7-slot 14-hook brush motor according to claim 1, characterized in that, The magnet part comprises a magnet holder and three magnet tiles, the magnet holder is a cylindrical structure, three magnet tile accommodating cavities are uniformly arranged on the cylinder wall of the cylindrical structure, and the three magnet tiles are uniformly arranged in the corresponding magnet tile accommodating cavities in a circumferential direction.

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