Hollow cup motor capable of low noise adjustment

Abstract

The utility model discloses a hollow cup motor of low -noise adjustment can be carried out relates to industrial automation technical field, including motor body, motor body drive is provided with motor rotor, the outside of motor body is provided with heat radiation structure, heat radiation structure includes heat conduction copper sheet, heat conduction copper sheet can carry out heat dissipation treatment to motor body, the outside of heat conduction copper sheet is provided with buffer structure, buffer structure includes buffer cotton ring, buffer cotton ring can carry out vibration damping and noise reduction to motor body, through being provided with heat radiation structure between buffer structure and motor body, heat conduction copper sheet and heat conduction copper block in heat radiation structure can increase the contact area of motor body and air, and then make motor body can heat dissipation fast, and set up buffer structure outside heat radiation structure, can reduce the force of the vibration that motor body and external object contact produces, and then reduce the noise.

Description

Technical Field

[0001] This utility model relates to the field of industrial automation technology, specifically a hollow cup motor with low noise adjustment. Background Technology

[0002] In the field of industrial automation, micro motors (micro special motors), including coreless motors, are one of the key components for realizing automated production, such as robot joint motors, conveyor motors in automated production lines, and servo motors in CNC equipment. Coreless motors are required to have high precision, high dynamic response, high reliability, and good anti-interference ability.

[0003] When a coreless motor is in use, its main body (motor body) or main rotor will vibrate to a certain extent. This vibration will generate noise, and the noise will affect the service life of the motor.

[0004] In the prior art, a Chinese patent discloses a miniature hollow cup motor that can reduce vibration (authorization announcement number CN218335594U). This patented technology can form an outer frame structure through a top ring, a bottom ring, and a support rod. A buffer cotton ring is installed between the outer frame structure and the surface wall of the motor body. When in use, the buffer cotton ring absorbs the vibration of the hollow cup motor, thereby avoiding the poor user experience caused by the transmission of vibration force to the device.

[0005] However, while the aforementioned cushioning cotton rings can effectively reduce the vibration force generated when the coreless motor comes into contact with external objects and reduce noise, they also affect the heat dissipation of the coreless motor. This can lead to excessively high operating temperatures and shorten the motor's lifespan. Furthermore, although the coreless motor lacks a core, rotor vibration is unavoidable during rotation, generating noise. Therefore, a coreless motor with adjustable low noise is provided to address the problems mentioned in the background section. Utility Model Content

[0006] The purpose of this invention is to provide a hollow cup motor with low noise adjustment to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A hollow cup motor with low-noise adjustment includes a motor body, a motor rotor driven by the motor body, a heat dissipation structure on the outside of the motor body, the heat dissipation structure including a thermally conductive copper sheet, the thermally conductive copper sheet being able to dissipate heat from the motor body, and a buffer structure on the outside of the thermally conductive copper sheet, the buffer structure including a buffer cotton ring, the buffer cotton ring being able to reduce vibration and noise of the motor body.

[0009] As a further embodiment of this utility model: the heat-conducting copper sheet is fixedly connected to the motor body, a plurality of heat-conducting copper blocks are fixedly connected to the outer side of the heat-conducting copper sheet, the outer side of the heat-conducting copper blocks is fixedly connected to the buffer cotton ring, and a fixing ring is fixedly connected to the outer side of the buffer cotton ring.

[0010] As a further embodiment of this utility model: a fixed sleeve is fitted onto the motor rotor, and multiple blades are fixedly connected to the periphery of the fixed sleeve.

[0011] As a further improvement of this utility model, a ventilation cavity is provided between the plurality of heat-conducting copper blocks.

[0012] As a further embodiment of this utility model: a bushing is provided at the connection between the motor rotor and the motor body, and an inertial body is fixedly connected to the lower side of the motor rotor.

[0013] As a further improvement of this utility model: a ring is installed on the inner side of the outer shell of the motor body, and silicone gel is provided on the inertial body.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By setting a heat dissipation structure between the buffer structure and the motor body, the heat-conducting copper sheets and blocks in the heat dissipation structure can increase the contact area between the motor body and the air, thereby enabling the motor body to dissipate heat quickly. In addition, the buffer structure set on the outside of the heat dissipation structure can reduce the vibration force generated when the motor body comes into contact with external objects, thereby reducing noise.

[0016] 2. An inertial body and silicone gel are provided on the underside of the motor rotor. The silicone gel can enhance the damping of the motor rotor and convert the vibration energy of the motor rotor into heat energy. The inertial body can suppress the resonance generated by the motor rotor, thereby reducing noise. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the motor rotor structure in this utility model;

[0019] Figure 3 This is a schematic diagram of the inertial body structure in this utility model;

[0020] Figure 4 This is a top view of the motor body structure in this utility model;

[0021] The correspondence between the labels and component names in the attached figures is as follows:

[0022] 1. Motor body; 101. Motor rotor; 102. Shaft sleeve; 2. Thermally conductive copper sheet; 201. Thermally conductive copper block; 202. Buffer cotton ring; 203. Ventilation cavity; 204. Fixing ring; 3. Fixing sleeve; 301. Blade; 4. Inertial body; 401. Silicone gel; 402. Circular ring. Detailed Implementation

[0023] Please see Figures 1-4 A hollow cup motor with low-noise adjustment includes a motor body 1, a motor rotor 101 driven on the motor body 1, a heat dissipation structure on the outside of the motor body 1, the heat dissipation structure including a heat-conducting copper sheet 2, the heat-conducting copper sheet 2 can dissipate heat from the motor body 1, a buffer structure on the outside of the heat-conducting copper sheet 2, the buffer structure including a buffer cotton ring 202, the heat-conducting copper sheet 2 is fixedly connected to the motor body 1, a plurality of heat-conducting copper blocks 201 are fixedly connected to the outside of the heat-conducting copper sheet 2, the outside of the heat-conducting copper blocks 201 is fixedly connected to the buffer cotton ring 202, and a fixing ring 204 is fixedly connected to the outside of the buffer cotton ring 202. The buffer cotton ring 202 can reduce vibration and noise of the motor body 1.

[0024] A heat dissipation structure is provided between the buffer structure and the motor body 1. The heat-conducting copper sheet 2 and the heat-conducting copper block 201 in the heat dissipation structure can increase the contact area between the outer shell of the motor body 1 and the air, thereby enabling the motor body 1 to dissipate heat quickly. A buffer structure is provided on the outside of the heat dissipation structure. The buffer cotton ring 202 in the buffer structure is sleeved on the heat-conducting copper block 201, and then connected to the external object through the fixing ring 204. The buffer cotton ring 202 can reduce the vibration force (vibration damping and energy absorption) generated when the motor body 1 contacts the external object, thereby reducing noise.

[0025] Preferably, a fixing sleeve 3 is fitted onto the motor rotor 101, and multiple blades 301 are fixedly connected around the fixing sleeve 3. A ventilation cavity 203 is provided between the multiple heat-conducting copper blocks 201.

[0026] When the motor rotor 101 is working, the motor rotor 101 will drive the fixed sleeve 3 and the blades 301 to rotate. The blades 301 are similar to fan blades. When the blades 301 rotate, they will generate wind. The wind will blow into the ventilation cavity 203. When the wind (air) flows rapidly inside the ventilation cavity 203, it can quickly dissipate heat from the heat-conducting copper block 201 and the heat-conducting copper sheet 2, thereby quickly dissipating heat from the motor body 1.

[0027] Preferably, a bushing 102 is provided at the connection between the motor rotor 101 and the motor body 1, an inertial body 4 is fixedly connected to the lower side of the motor rotor 101, a ring 402 is installed on the inner side of the outer shell of the motor body 1, and silicone gel 401 is provided on the inertial body 4.

[0028] An inertial body 4 and silicone gel 401 are provided on the lower side of the motor rotor 101. When the motor rotor 101 rotates under the drive of the motor body 1, the motor rotor 101 will drive the inertial body 4 to rotate. The inertial body 4 can suppress the resonance generated by the motor rotor 101 and can compensate for the kinetic energy of the motor rotor 101 during the start-stop phase, making the motor rotor 101 more stable when rotating.

[0029] Furthermore, when the inertial body 4 rotates, it will come into contact with the silicone gel 401. The silicone gel 401 can enhance the rotational damping of the motor rotor 101, convert the vibration energy of the motor rotor 101 into heat energy, suppress the resonance generated by the motor rotor 101, and thus reduce noise.

[0030] Working principle: The heat-conducting copper sheet 2 and the heat-conducting copper block 201 increase the contact area between the motor body 1 and the air, thereby enabling the motor body 1 to dissipate heat quickly. A buffer structure is set on the outside of the heat dissipation structure. The buffer cotton ring 202 in the buffer structure is sleeved on the heat-conducting copper block 201 and then connected to the external object through the fixing ring 204. The buffer cotton ring 202 can reduce the vibration force generated when the motor body 1 contacts the external object (vibration reduction and energy absorption), thereby reducing noise. When the motor rotor 101 rotates under the drive of the motor body 1, the motor rotor 101 will drive the inertial body 4 to rotate. The inertial body 4 can suppress the resonance generated by the motor rotor 101 and compensate for the kinetic energy of the motor rotor 101 during the start-stop phase, making the motor rotor 101 more stable during rotation, suppressing the resonance generated by the motor rotor 101, and thus reducing noise.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hollow cup motor with low-noise adjustment, comprising a motor body (1), characterized in that, The motor body (1) is driven by a motor rotor (101). A heat dissipation structure is provided on the outside of the motor body (1). The heat dissipation structure includes a heat-conducting copper sheet (2). The heat-conducting copper sheet (2) can dissipate heat from the motor body (1). A buffer structure is provided on the outside of the heat-conducting copper sheet (2). The buffer structure includes a buffer cotton ring (202). The buffer cotton ring (202) can reduce vibration and noise in the motor body (1).

2. A hollow cup motor with low-noise adjustment according to claim 1, characterized in that, The heat-conducting copper sheet (2) is fixedly connected to the motor body (1). Multiple heat-conducting copper blocks (201) are fixedly connected to the outside of the heat-conducting copper sheet (2). The outside of the heat-conducting copper blocks (201) is fixedly connected to the buffer cotton ring (202). A fixing ring (204) is fixedly connected to the outside of the buffer cotton ring (202).

3. A hollow cup motor with low-noise adjustment according to claim 1, characterized in that, A fixed sleeve (3) is fitted onto the motor rotor (101), and multiple blades (301) are fixedly connected to the periphery of the fixed sleeve (3).

4. A hollow cup motor with low-noise adjustment according to claim 2, characterized in that, Ventilation chambers (203) are provided between the plurality of heat-conducting copper blocks (201).

5. A hollow cup motor with low-noise adjustment according to claim 1, characterized in that, A bushing (102) is provided at the connection between the motor rotor (101) and the motor body (1), and an inertial body (4) is fixedly connected to the lower side of the motor rotor (101).

6. A hollow cup motor with low-noise adjustment according to claim 5, characterized in that, A ring (402) is installed on the inner side of the outer shell of the motor body (1), and silicone gel (401) is provided on the inertial body (4).

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