Mounting structure of electric brush sleeve

Abstract

The utility model belongs to the technical field of brush assembly installation, and particularly discloses a brush sleeve installation structure which comprises a rack, a motor base and a brush sleeve, the motor base comprises a motor base, the motor base is provided with at least one pair of supporting frames in an upward extending mode, and the motor base is provided with a plurality of supporting frames which are used for allowing the brush sleeve to be inserted from the lower portion of the motor base. The motor base is provided with an installation opening which is arranged on the electric brush sleeve and is matched with the motor base in size, the motor base is further provided with a limiting structure which abuts against the electric brush sleeve from the bottom, the surface of the electric brush sleeve is provided with an upward positioning protruding block, and the motor base is provided with a positioning groove matched with the positioning protruding block. The installation structure provided by the utility model is stable and reliable, is convenient and rapid to disassemble and assemble, is strong in vibration impact resistance, and prolongs the service life of the electric brush base and the electric brush sleeve.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of brush assembly installation, and particularly relates to a mounting structure of brush sleeve. BACKGROUND

[0002] The commonly used motor is usually installed in cooperation with a motor base, a brush base is connected with the first end of a driving rod, and the second end of the driving rod is used to be connected with a driving motor; the two sides of the motor base need to be cooperatively installed with a carbon brush sleeve, the carbon brush sleeve is internally provided with a brush, and the brush is used to conduct electricity for a rotating rotor. One end of the brush is connected with a flexible metal wire, and the other end of the metal wire is connected with an external circuit through a mounting terminal for charging.

[0003] However, the carbon brush sleeve of the prior art is basically mounted on the mounting groove on the motor base from the side of the motor base, such as Chinese patent ZL 202110882563.8, which inserts the carbon brush sleeve from the shaft center to the outside of the installation groove, and relies on the mutual abutment of the inner wall of the support frame near the first mounting port inside the end of the installation groove side and the protruding block on the upper part of the carbon brush sleeve. When installing or replacing the carbon brush sleeve or the brush, the entire motor base needs to be disassembled, the installation process is more complex, and at the same time, the vibration impact force generated by the rotation of the rotor of the motor directly impacts the buckle on the carbon brush sleeve, which can easily cause damage to the buckle. SUMMARY

[0004] The utility model aims at overcoming the defects of the prior art, providing a mounting structure of brush sleeve, which is stable and reliable, easy and fast to disassemble and assemble, strong in vibration impact resistance, and prolongs the service life of the brush base and the brush sleeve.

[0005] The utility model aims at overcoming the defects of the prior art, providing a mounting structure of brush sleeve, which is stable and reliable, easy and fast to disassemble and assemble, strong in vibration impact resistance, and prolongs the service life of the brush base and the brush sleeve.

[0006] A mounting structure of brush sleeve, comprising a motor base and a brush sleeve, the motor base comprises a motor base, at least one pair of support frames is provided on the motor base and extends upward, a mounting port is formed on the motor base, the mounting port is used for inserting the brush sleeve from the lower part of the motor base, and the size of the mounting port is matched with the motor base, a limiting structure is further provided on the motor base and abuts against the brush sleeve from below, a positioning protruding block is arranged on the surface of the brush sleeve and extends upward, and a positioning groove matched with the positioning protruding block is arranged on the motor base.

[0007] The limiting structure and the motor base are formed as a whole in the mounting structure of brush sleeve as described above.

[0008] The limiting structure is at least one limiting buckle arranged on the inner wall of the mounting port in the mounting structure of brush sleeve as described above.

[0009] The installation structure of the brush sleeve as described above, the limiting buckle is provided with a transition inclined surface for inserting the brush sleeve and a supporting surface abutting against the brush sleeve.

[0010] The installation structure of the brush sleeve as described above, the inside of the brush sleeve is provided with a brush and a brush spring, the brush can move back and forth in the brush sleeve, the movable end of the brush spring is located on the tail of the brush, the tail of the brush is connected with an electric lead, and the end of the electric lead is connected with a terminal.

[0011] The installation structure of the brush sleeve as described above, the motor base is provided with a avoiding step, and the installation height of the inner surface of the brush sleeve is higher than the avoiding step after the brush sleeve is installed in the installation port.

[0012] The installation structure of the brush sleeve as described above, the inside of the brush sleeve is provided with an installation cavity penetrating through the brush sleeve, the end of the electric lead is provided with a conductive sheet, the brush spring is located between the conductive sheet and the brush, and is sleeved on the electric lead, and the terminal is inserted into the installation cavity and abuts against the conductive sheet.

[0013] The installation structure of the brush sleeve as described above, the left and right sides of the brush sleeve are provided with installation holes in communication with the installation cavity and used for inserting the terminal, and the terminal is provided with a limiting protrusion and an elastic limiting buckle used for preventing the terminal from being pulled out of the installation hole.

[0014] Compared with the prior art, the installation structure of the brush sleeve has the following advantages:

[0015] 1. The installation structure of the brush sleeve is stable and reliable, convenient and fast to disassemble and assemble, strong in vibration impact resistance, and prolongs the service life of the brush base and the brush sleeve.

[0016] 2. The installation structure of the brush sleeve is stable and reliable, convenient and fast to disassemble and assemble, strong in vibration impact resistance, and prolongs the service life of the brush base and the brush sleeve.

[0017] 3. The installation structure of the brush sleeve is stable and reliable, convenient and fast to disassemble and assemble, strong in vibration impact resistance, and prolongs the service life of the brush base and the brush sleeve.

[0018] 4. The installation structure of the brush sleeve is stable and reliable, convenient and fast to disassemble and assemble, strong in vibration impact resistance, and prolongs the service life of the brush base and the brush sleeve. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the schematic view of the installation structure and the structure of motor of the utility model brush cover;

[0020] Figure 2 It is the schematic view of the installation structure of the utility model brush cover;

[0021] Figure 3 It is the exploded schematic view of the installation structure of the utility model brush cover;

[0022] Figure 4 It is the cross section schematic view of the installation structure of the utility model brush cover;

[0023] Figure 5 It is Figure 4 The structure schematic view of enlarged at A in the middle. DETAILED DESCRIPTION

[0024] The utility model will be described in further detail below in conjunction with the drawings and specific embodiments of the specification.

[0025] As Figures 1-5 The utility model discloses a kind of installation structures of brush cover, including motor base 1 and brush cover 2, motor base 1 includes motor base 11, motor base 11 is extended at least a pair of support frame 12 upwards, motor base 1 is opened with the size and motor base 1 compatible installation port 13 for brush cover 2 from the lower part of motor base 1 insertion, motor base 1 is also provided with from the lower part of limit structure 3 that brush cover 2 is abutted, the surface of brush cover 2 is equipped with upwards positioning lug 21, motor base 1 is equipped with the positioning groove 14 matched with positioning lug 21.

[0026] The utility model is equipped with the limit structure 3 of from the lower part of motor base 1 that brush cover 2 is abutted, the positioning lug 21 on the surface of brush cover 2 and the positioning groove 14 matched with positioning lug on motor base 1, so brush cover 2 can be loaded from the lower part into motor base 1, disassembly is more convenient and fast, and the limit structure 3 of motor base 1 bottom does not receive the vibration impact force generated when motor rotor rotates, and its structure is more stable and reliable, and service life is longer.

[0027] As a preferred embodiment of the utility model, limit structure 3 is formed integrally with motor base 1 in the embodiment. The structure of integral molding simplifies manufacturing process, and improves the strength of limit structure 3.

[0028] Specifically, as Figures 2-5As shown, the limiting structure 3 is at least one limiting buckle 31 arranged on the inner wall of the mounting port 13, and the limiting buckle 31 is generally a buckle structure with elasticity. The limiting buckle 31 is provided with a transition inclined surface 311 for inserting the brush sleeve 2 and a supporting surface 312 abutting against the brush sleeve 2. The transition inclined surface 311 can more easily guide the brush sleeve 2 into the mounting port 13 and abut against the supporting surface 312.

[0029] As shown in the drawings, Figures 3-5 In the embodiment of the utility model, the inside of the brush sleeve 2 is provided with the brush 4 and the brush spring 5, the brush 4 can move back and forth in the brush sleeve 2, one movable end of the brush spring 5 is on the tail of the brush 4, the tail of the brush 4 is connected with the electric lead 6, and the end of the electric lead 6 is connected with the terminal 7.

[0030] As shown in the drawings, Figure 5 As shown, the motor base 1 is provided with a relief step 15, when the brush sleeve 2 is installed in the mounting port 13, the installation height of the inner surface 22 of the brush sleeve 2 is higher than the relief step 15, so that the installation height of the brush 4 in the brush sleeve 2 is higher than the relief step 15, the brush 4 is prevented from rubbing against the motor base 1, the brush 4 can more flexibly move back and forth in the brush sleeve 2 when the motor rotor 8 rotates, and the service life of the brush is prolonged.

[0031] As another preferred embodiment of the utility model, as shown in the drawings, Figures 3-5 The inside of the brush sleeve 2 is provided with a mounting cavity 23 penetrating through the brush sleeve 2, the end of the electric lead 6 is provided with a conductive sheet 61, the brush spring 5 is located between the conductive sheet 61 and the brush 4 and is sleeved on the electric lead 6, and the terminal 7 is inserted into the mounting cavity 23 and abuts against the conductive sheet 61. Specifically, as shown in the drawings, Figure 3 The left and right sides of the brush sleeve 2 are both provided with a mounting hole 24 for inserting the terminal 7 and communicating with the mounting cavity 23, the terminal 7 is provided with a limiting protrusion 71 and an elastic limiting buckle 72 for preventing the terminal 7 from being pulled out of the mounting hole 24. In this way, the brush 4, the brush spring 5, the electric lead 6 and the connected conductive sheet 61 can be first assembled into the inside of the brush sleeve 2, then the terminal 7 is inserted into the mounting cavity 23 for limiting, and the parts in the inside of the brush sleeve 2 are prevented from being pulled out. This arrangement can more conveniently assemble and disassemble the parts in the inside of the brush sleeve 2, and the brush 4 and its accessories can be more conveniently replaced without disassembling the brush sleeve 2.

Claims

1. A mounting structure of a brush holder, comprising a motor base (1) and a brush holder (2), the motor base (1) comprising a motor base (11) upwardly extending and provided with at least one pair of support frames (12), characterized in that The motor base (1) is provided with a mounting port (13) for inserting the brush sleeve (2) from the lower part of the motor base (1), and the size of the mounting port (13) is matched with the motor base (1), and the motor base (1) is further provided with a limiting structure (3) abutting against the brush sleeve (2) from below, and the surface of the brush sleeve (2) is provided with an upward positioning protrusion (21), and the motor base (1) is provided with a positioning groove (14) matched with the positioning protrusion (21).

2. The mounting structure of the brush holder according to claim 1, characterized in that The limiting structure (3) is formed integrally with the motor base (1).

3. The mounting structure of the brush holder according to claim 2, characterized in that The limiting structure (3) is at least one limiting buckle (31) provided on the inner wall of the mounting port (13).

4. The mounting structure of the brush holder according to claim 3, characterized in that The limiting buckle (31) is provided with a transition inclined surface (311) for inserting the brush sleeve (2) and a supporting surface (312) abutting against the brush sleeve (2).

5. The mounting structure of the brush holder according to claim 1, characterized in that The inside of the brush sleeve (2) is provided with a brush (4) and a brush spring (5), the brush (4) can move back and forth in the brush sleeve (2), one end of the brush spring (5) is located at the tail of the brush (4), the tail of the brush (4) is connected with an electric lead (6), and the end of the electric lead (6) is connected with a terminal (7).

6. The mounting structure of the brush holder according to claim 5, characterized in that The motor base (1) is provided with a avoiding step (15), and the installation height of the inner surface (22) of the brush sleeve (2) is higher than the avoiding step (15) after the brush sleeve (2) is installed in the mounting port (13).

7. The mounting structure of the brush holder according to claim 5, wherein The inside of the brush sleeve (2) is provided with a mounting cavity (23) penetrating through the brush sleeve (2), the end of the electric lead (6) is provided with a conductive sheet (61), the brush spring (5) is located between the conductive sheet (61) and the brush (4), and is sleeved on the electric lead (6), and the terminal (7) is inserted into the mounting cavity (23) and abuts against the conductive sheet (61).

8. The mounting structure of the brush holder according to claim 7, characterized in that The left and right sides of the brush sleeve (2) are provided with mounting holes (24) for inserting the terminal (7) and communicating with the mounting cavity (23), the terminal (7) is provided with a limiting protrusion (71) and an elastic limiting buckle (72) for preventing the terminal (7) from being pulled out of the mounting hole (24).

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