Motor rubber cover assembly and motor

Abstract

The utility model relates to a motor rubber cover assembly and a motor. The motor rubber cover assembly comprises a rubber cover, a power supply terminal, an inductor, a capacitor and a carbon brush holder assembly, the power supply terminal, the inductor and the capacitor are assembled on the rubber cover, the carbon brush holder assembly is used for assembling a carbon brush, the lower part of the power supply terminal, the capacitor and the carbon brush holder assembly are assembled on the back surface of the rubber cover, and the upper part of the power supply terminal penetrates out of the front surface of the rubber cover; a mounting groove is formed in the front surface of the rubber cover, the inductor is assembled in the mounting groove, a through hole penetrating through the rubber cover is formed in the mounting groove, and an inductor pin of the inductor extends to the back surface of the rubber cover through the through hole so as to be electrically connected with the power supply terminal and the carbon brush holder assembly. The inductor is installed on the front face of the rubber cover, other parts are physically isolated, and the problem that an existing rubber cover assembly needs additional insulation is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a motor rubber cover component and a motor. Background Art

[0002] A motor is a device that converts electrical energy into mechanical energy. A rubber cover assembly is usually provided at one end of the motor. The rubber cover assembly mainly includes a rubber cover, and inductors, capacitors, carbon brushes and other components assembled on the rubber cover.

[0003] The design of the rubber cover assembly of a conventional motor usually has the following structure:

[0004] 1. The inductor, capacitor, carbon brush and other components are uniformly designed and assembled on the back of the rubber cover (towards the inside of the motor). Advantages: simple structure, intuitive assembly of the rubber cover assembly, and clear feedback of the status of each component. Disadvantages: additional insulation is required; components are assembled on the same side, and the requirements for spatial arrangement are relatively stringent.

[0005] 2. The circuit connection between the power terminal, inductor and carbon brush is achieved by using a welding machine or manual welding. Advantages: The welding process is easy to operate by using tooling or other tools; manual operation can achieve self-checking; Disadvantages: It is more dependent on manual or welding machine operation, which is prone to leakage and cold welding, low efficiency, and welding will produce gases that are harmful to the human body.

[0006] 3. Fixing of carbon brushes, plastic cover forming integrated carbon brush box or additional brass carbon brush box. Advantages: The former has a simple structure and greatly controls the amount of materials; the latter has good conductivity, and the brass carbon brush box provides a good working environment for the carbon brush. Disadvantages: The former is more dependent on the material of the plastic cover in terms of temperature resistance and durability; the latter increases additional assembly costs and material costs.

[0007] 4. Fixing of inductors: vertical installation of inductors or horizontal installation of inductors. Advantages: The former relies on the design of the rubber cover, fixed by the ribs, and stable installation; the latter improves the space utilization of the rubber cover. Disadvantages: The former takes up a large space; the latter inductor needs to be fixed by inductor glue.

[0008] Therefore, it is urgent to develop an unconventional motor rubber cover assembly and a motor using the rubber cover assembly to solve the problem that the existing motor rubber cover assembly needs to add additional insulation. Summary of the invention

[0009] Therefore, the purpose of the present invention is to provide an unconventional motor rubber cover assembly and a motor, so as to solve the problem that the existing motor rubber cover assembly needs to add additional insulation.

[0010] To achieve the above-mentioned purpose, the utility model provides a motor rubber cover assembly, including: a rubber cover, a power terminal, an inductor, a capacitor and a carbon brush holder assembly assembled on the rubber cover, the lower part of the power terminal, the capacitor and the carbon brush holder assembly are assembled on the back side of the rubber cover, and the upper part of the power terminal penetrates through the front side of the rubber cover; a mounting groove is provided on the front side of the rubber cover, the inductor is assembled in the mounting groove, the mounting groove is provided with a through hole penetrating the rubber cover, and the inductor pin of the inductor extends to the back side of the rubber cover through the through hole to electrically connect the power terminal and the carbon brush holder assembly.

[0011] Wherein, the installation slot is provided with a limit buckle for limiting the position of the inductor assembled in the installation slot.

[0012] Wherein, a first rib for firmly assembling the inductor in the installation slot is provided on the inner wall of the installation slot.

[0013] Wherein, a first buckle position for electrically connecting an inductor pin of an inductor and / or a capacitor pin of a capacitor is provided below the power terminal.

[0014] Wherein, the carbon brush holder assembly is provided with a second buckle position for electrically connecting the inductor pin.

[0015] Wherein, the carbon brush holder assembly is provided with claws formed by opening holes and cutting grooves to fix the carbon brushes.

[0016] Wherein, a damping block is provided on the carbon brush holder assembly to reduce vibration.

[0017] Wherein, a limiting block for assembling the capacitor is provided on the back of the rubber cover.

[0018] Wherein, the peripheral wall of the rubber cover is provided with a second rib for fitting the rubber cover to the motor housing.

[0019] The utility model also provides a motor, which comprises the motor rubber cover assembly as described in any one of the above items.

[0020] In summary, the motor rubber cover assembly and the motor of the present invention install the inductor on the front side of the rubber cover to physically isolate other components, thereby solving the problem that the existing rubber cover assembly needs to add additional insulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The following detailed description of the specific implementation of the utility model in conjunction with the accompanying drawings will make the technical solution and other beneficial effects of the utility model obvious.

[0022] Figure 1 It is a front view schematic diagram of the assembly state of a preferred embodiment of the motor rubber cover assembly of the utility model;

[0023] Figure 2It is a schematic diagram of the back side of a preferred embodiment of the motor rubber cover assembly of the utility model in the assembled state;

[0024] Figure 3 This is an exploded schematic diagram of a preferred embodiment of the motor rubber cover assembly of the utility model;

[0025] Figure 4 It is a front view schematic diagram of a rubber cover of a preferred embodiment of a motor rubber cover assembly of the utility model;

[0026] Figure 5 This is a schematic diagram of the back side of a rubber cover of a preferred embodiment of a motor rubber cover assembly of the utility model;

[0027] Figure 6 This is a schematic diagram of the assembly state of a preferred embodiment of the motor rubber cover assembly of the utility model after the rubber cover is removed;

[0028] Figure 7 A schematic diagram of an inductor of a preferred embodiment of a motor rubber cover assembly of the utility model;

[0029] Figure 8 A schematic diagram of a power terminal of a preferred embodiment of a motor rubber cover assembly of the utility model;

[0030] Fig. 9 A schematic diagram of a capacitor of a preferred embodiment of the motor rubber cover assembly of the utility model;

[0031] Fig.10 A schematic diagram of a carbon brush holder assembly of a preferred embodiment of a motor rubber cover assembly of the utility model;

[0032] Fig.11 It is a three-dimensional schematic diagram of a preferred embodiment of the motor of the utility model;

[0033] Fig.12 It is a cross-sectional schematic diagram of a preferred embodiment of the motor of the utility model;

[0034] Fig.13 It is an exploded schematic diagram of a preferred embodiment of the motor of the utility model. DETAILED DESCRIPTION

[0035] See also Figures 1 to 10 , Figure 1 This is a front view of a preferred embodiment of the motor rubber cover assembly of the utility model in the assembled state. Figure 2 This is a schematic diagram of the back side of the preferred embodiment in the assembled state. Figure 3 The exploded schematic diagram of the preferred embodiment is as follows: Figure 4 The front view of the rubber cover in the preferred embodiment is as follows: Figure 5 The back side schematic diagram of the rubber cover in the preferred embodiment is as follows: Figure 6 A schematic diagram of the assembly state of the preferred embodiment after removing the rubber cover is shown in the following figure: Figure 7 The schematic diagram of the inductor in the preferred embodiment is as follows: Figure 8 The schematic diagram of the power supply terminal in the preferred embodiment is as follows: Fig. 9 The schematic diagram of the capacitor in the preferred embodiment is as follows: Fig.10 A schematic diagram of a carbon brush holder assembly in a preferred embodiment is provided for this purpose.

[0036] The motor rubber cover assembly of the utility model mainly includes a rubber cover 10, a power terminal 20, an inductor 30, a capacitor 40 for grounding and a carbon brush holder assembly 50 assembled on the rubber cover 10, the lower part of the power terminal 20, the capacitor 40 and the carbon brush holder assembly 50 are assembled on the back of the rubber cover 10, and the upper part of the power terminal 20 penetrates from the front of the rubber cover 10; the front of the rubber cover 10 is provided with a mounting groove 11, the inductor 30 is assembled in the mounting groove 11, the mounting groove 11 is provided with a through hole penetrating the rubber cover 10, and the inductor pin 31 of the inductor 30 extends to the back of the rubber cover 10 through the through hole to electrically connect the power terminal 20 and the carbon brush holder assembly 50.

[0037] In this preferred embodiment, the mounting groove 11 is provided with a limit buckle 12 for limiting the position of the inductor 30 installed in the mounting groove 11; the inner wall of the mounting groove 11 is provided with a first rib 13 for firmly installing the inductor 30 in the mounting groove 11. The utility model physically isolates the inductor 30 from other components by installing the inductor 30 on the front of the rubber cover 10, thereby solving the problem that the existing rubber cover assembly needs to add additional insulation.

[0038] In this preferred embodiment, a first buckle position 21 for electrically connecting the inductor pin 31 of the inductor 30 and / or the capacitor pin 41 of the capacitor 40 is provided below the power terminal 20. More specifically, in this preferred embodiment, a first buckle position 21 is provided on each left and right side of each power terminal 20. A socket 22 is also provided on the power terminal 20 as a design to prevent it from loosening when it is assembled to the rubber cover 10.

[0039] In this preferred embodiment, the carbon brush holder assembly 50 is provided with a second buckle position 51 for electrically connecting the inductor pin 31 of the inductor 30 .

[0040] The buckling structure design on the power terminal 20 and the brush holder assembly 50 of the utility model enables them to be directly connected to the corresponding pins of the inductor 30 and the capacitor 40, thereby eliminating the assembly and welding process in the existing motor rubber cover design, thereby reducing production hours, increasing fault tolerance, and reducing the emission of gases harmful to the human body.

[0041] In this preferred embodiment, the carbon brush holder assembly 50 is further provided with a claw 52 formed by opening and cutting holes to fix the carbon brush 53. The carbon brush holder assembly 50 is also provided with a damping block 54 to reduce vibration, reduce the vibration caused by the motor when working, and realize the control of the working state of the carbon brush 53 during commutation.

[0042] In this preferred embodiment, a stopper 14 for assembling the capacitor 40 is provided on the back of the rubber cover 10. The capacitor 40 is assembled to the back of the rubber cover 10 in cooperation with the stopper 14. One capacitor pin 41 of the capacitor 40 is connected to the corresponding first buckle position 21 of the power terminal 20, and the other capacitor pin 41 is used for grounding. The peripheral wall of the rubber cover 10 is also provided with a second rib position 15 for assembling the rubber cover 10 to the motor housing.

[0043] Reference Figures 1 to 10 When assembling the motor rubber cover assembly of the utility model, the inductor 30 is assembled from the front of the rubber cover 10, and after being in place, it is fixed by the limit buckle 12 and the first rib 13 structure of the rubber cover 10; on the back of the rubber cover 10, the inductor 30 is passed through the inductor pin 31 of the rubber cover 10 by using a tool for bending, and then the power terminal 20 and the carbon brush holder assembly 50 are assembled. Prior to this, the capacitor 40 for grounding is assembled on the rubber cover 10, so that the buckle design of the power terminal 20 is cleverly used to connect and fix it with the inductor pin 31 of the inductor 30 and the capacitor pin 41 of the capacitor 40 to realize the circuit path.

[0044] When assembling the carbon brush holder assembly 50, the carbon brush 53 and the damping block 54 are assembled to the elastic arm-shaped carbon brush holder assembly 50 as shown in the figure; the damping block 54 can be assembled by a bonding process, and the elastic arm-shaped carbon brush holder assembly 50 can cleverly use the claws 52 formed by the opening and cutting to realize the assembly of the carbon brush 53.

[0045] The utility model designs the assembly position of the inductor on the front side of the rubber cover by designing a special-shaped rubber cover, thereby realizing physical isolation between the inductor and other components; adds an undercut and a rib position design on the inductor installation position, thereby realizing fixation of the inductor to the rubber cover; designs buckle positions for the power terminal and the carbon brush holder, thereby realizing assembly of the inductor and the capacitor in a buckle form; designs a carbon brush holder assembly, and the elastic arm type carbon brush holder uses opening holes and cutting grooves to form claws to fix the carbon brushes, and is equipped with a damping block at the same time, thereby reducing vibration caused by the motor when working, thereby realizing control of the working state of the carbon brush during commutation.

[0046] Accordingly, the present invention also provides a motor using the rubber cover assembly of the present invention. Figures 11 to 13 , Fig.11 This is a three-dimensional schematic diagram of a preferred embodiment of the motor of the utility model. Fig.12 The cross-sectional schematic diagram of a preferred embodiment is as follows: Fig.13The schematic diagram of the decomposition of the preferred embodiment is shown. The motor of the preferred embodiment is mainly composed of a rubber cover assembly 1, a metal rubber cover assembly 2, a housing assembly 3, a rotating shaft 4, a ball bearing 5, an oil retaining ring 6, an armature assembly 7, and a ball bearing 8. In the motor of the preferred embodiment, the rubber cover assembly 1 of the present invention is partially exposed to the outside, and together with other exposed parts, it forms the appearance of the motor; the front of the rubber cover assembly 1 is in contact with the metal rubber cover assembly 2, and the convex part and the outer rib part of the back of the rubber cover assembly 1 are in contact with the housing assembly 3, which plays the role of receiving the assembly assembly and fixing the components, ensuring the relative position of the commutator and the carbon brush assembly, and realizing the normal operation of the motor assembly.

[0047] In summary, the motor rubber cover assembly and the motor of the present invention install the inductor on the front side of the rubber cover to physically isolate other components, thereby solving the problem that the existing rubber cover assembly needs to add additional insulation.

[0048] As described above, for ordinary technicians in this field, various other corresponding changes and modifications can be made according to the technical scheme and technical concept of the utility model, and all these changes and modifications should fall within the protection scope of the claims attached to the utility model.

Claims

1. A motor rubber cover assembly, comprising: A rubber cover (10), a power terminal (20), an inductor (30), a capacitor (40) and a carbon brush holder assembly (50) mounted on the rubber cover (10), characterized in that the lower part of the power terminal (20), the capacitor (40) and the carbon brush holder assembly (50) are mounted on the back of the rubber cover (10), and the upper part of the power terminal (20) penetrates through the front of the rubber cover (10); a mounting groove (11) is provided on the front of the rubber cover (10), the inductor (30) is mounted in the mounting groove (11), the mounting groove (11) is provided with a through hole penetrating the rubber cover (10), and an inductor pin (31) of the inductor (30) extends through the through hole to the back of the rubber cover (10) to electrically connect the power terminal (20) and the carbon brush holder assembly (50).

2. The motor rubber cover assembly according to claim 1, characterized in that: The installation slot (11) is provided with a limit buckle (12) for limiting the position of the inductor (30) installed in the installation slot (11).

3. The motor rubber cover assembly according to claim 1, characterized in that: A first rib (13) for firmly mounting the inductor (30) in the mounting groove (11) is provided on the inner wall of the mounting groove (11).

4. The motor rubber cover assembly according to claim 1, characterized in that: A first buckle position (21) for electrically connecting an inductor pin (31) of an inductor (30) and / or a capacitor pin (41) of a capacitor (40) is provided below the power terminal (20).

5. The motor rubber cover assembly according to claim 1, characterized in that: The carbon brush holder assembly (50) is provided with a second buckle position (51) for electrically connecting an inductor pin (31) of the inductor (30).

6. The motor rubber cover assembly according to claim 1, characterized in that: The carbon brush holder assembly (50) is provided with a clamping claw (52) formed by opening a hole and cutting a groove to fix the carbon brush (53).

7. The motor rubber cover assembly according to claim 1, characterized in that: The carbon brush holder assembly (50) is provided with a damping block (54) for vibration reduction.

8. The motor rubber cover assembly according to claim 1, characterized in that: A limiting block (14) for assembling the capacitor (40) is provided on the back of the rubber cover (10).

9. The motor rubber cover assembly according to claim 1, characterized in that: The peripheral wall of the rubber cover (10) is provided with a second rib (15) for fitting the rubber cover (10) to the motor housing.

10. A motor, characterized in that: It comprises a motor rubber cover assembly as described in any one of claims 1 to 9.

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