Double-sliding-film controlled permanent magnet synchronous motor with heat dissipation function

Abstract

The utility model discloses a permanent magnet synchronous motor with a heat dissipation function and controlled by double sliding films, which comprises a fixed bottom plate, a motor shell is fixedly arranged above the fixed bottom plate, heat dissipation mechanisms are arranged in the motor shell and a rotor iron core at equal angles, and each heat dissipation mechanism comprises heat dissipation holes, heat dissipation fins and a filter screen. And heat dissipation holes are formed in the motor shell and the rotor core at equal angles, heat dissipation fins are installed in the heat dissipation holes, and filter screens are arranged on the outer sides of the heat dissipation fins. According to the double-sliding-film-controlled permanent magnet synchronous motor with the heat dissipation function, heat in the motor can be dissipated from multiple positions through the arrangement of the multiple heat dissipation holes, the heat dissipation efficiency of the motor is greatly improved, dust in the motor is swept through a cleaning brush, then the dust is absorbed through activated carbon, and the heat dissipation efficiency of the motor is improved. And in addition, the rubber pad is utilized, so that the damage caused by the vibration of the motor is greatly reduced, and the service life of the motor is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a double-sliding film controlled permanent magnet synchronous motor with a heat dissipation function. Background Art

[0002] Permanent magnet synchronous motor is a modern motor technology, the main features include high efficiency, high control accuracy and good load capacity. Its core lies in its rotor, which is usually composed of permanent magnets and is used to generate a magnetic field. Due to the mutual influence between the rotor magnetic field and the stator magnetic field, the rotor begins to rotate synchronously, thereby converting electrical energy into mechanical energy. The permanent magnet synchronous motor can be used as an engine. Compared with traditional induction motors, it has higher efficiency, power density and smaller size. They also reduce material and energy consumption and are widely used in electric vehicles, wind power generation and industrial automation.

[0003] For example, the utility model with authorization announcement number CN219643740U relates to the field of motor technology, and specifically discloses a permanent magnet synchronous motor with a rapid heat dissipation function, including a motor body and an output shaft inserted through the motor body, annular mounting plates are respectively fitted and connected at both ends of the outer surface of the motor body, a plurality of rotating shafts are rotatably connected between the annular mounting plates, at least one fan blade assembly is respectively fitted and connected to the rotating shaft, and the rotating fan blade assembly blows air along the radial direction of the rotating shaft, and also includes a rotating drive mechanism, which is fitted and connected to the output shaft and is suitable for driving the rotating shaft to rotate in a circle. Through the above method, the permanent magnet synchronous motor with a rapid heat dissipation function described in the utility model, the rotating shaft drives the fan blade assembly to rotate and blow air toward the outer surface of the motor body, thereby enhancing the heat dissipation efficiency and extending the service life of the permanent magnet synchronous motor.

[0004] However, the above technical solution still has some shortcomings. For example, the permanent magnet motor drives the fan blade assembly to rotate by adding gears to quickly dissipate heat, but the fan blade assembly can only blow air in the radial direction, and the heat dissipation effect is general. At the same time, a large amount of dust will be sucked into the inside of the heat dissipation motor through the heat dissipation holes. If the internal dust is not handled in time, the motor will cause a short circuit. In addition, high-intensity vibration will be generated during the operation of the motor, and long-term vibration will reduce the service life of the motor. Therefore, we propose a permanent magnet synchronous motor with double sliding film control and heat dissipation function to solve the above problems. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a double sliding film controlled permanent magnet synchronous motor with heat dissipation function, which has the characteristics of changing the original composite wear-resistant steel plate production equipment.

[0006] To achieve the above object, the utility model provides the following technical solution: a double sliding film controlled permanent magnet synchronous motor with heat dissipation function, comprising:

[0007] A fixed bottom plate, with a motor housing fixedly mounted on top of the fixed bottom plate;

[0008] It is characterized by further comprising:

[0009] The motor housing and the rotor core are provided with heat dissipation mechanisms at equal angles, including heat dissipation holes, heat sinks and filters. The motor housing and the rotor core are provided with heat dissipation holes at equal angles, and heat sinks are installed inside the heat dissipation holes. A filter is provided outside the heat sink, and the filter is connected to the motor housing by snapping.

[0010] A shock absorbing mechanism is arranged below the outer side of the motor housing, which includes a fixed bottom plate, a rubber pad, a support plate and a support rod. Rubber pads are symmetrically installed front and back below the outer side of the motor housing, and a support plate is fixedly installed below the rubber pad.

[0011] By adopting the above technical solution, the heat dissipation efficiency of the motor can be improved by the heat dissipation mechanism composed of the heat dissipation holes, heat sinks and filters, and the service life of the motor can be extended by the shock absorbing mechanism composed of the fixed base plate, rubber pads, support plates and support rods.

[0012] As a preferred technical solution of the utility model, positioning holes are symmetrically opened inside the fixed base plate, and rivets are installed inside the positioning holes symmetrically arranged inside the fixed base plate.

[0013] By adopting the above technical solution, rivets are symmetrically arranged inside the fixed bottom plate, so that the motor can be firmly fixed and installed.

[0014] As a preferred technical solution of the utility model, a rotating shaft is rotatably arranged inside the motor housing, and permanent magnets are installed at equal angles on the outside of the rotating shaft, and a rotor core is installed inside the motor housing.

[0015] By adopting the above technical solution, a permanent magnet is installed on the outer side of the rotating shaft, and when the rotating shaft rotates, the permanent magnet can rotate together.

[0016] As a preferred technical solution of the utility model, activated carbon is mounted on the inner wall of the heat dissipation hole, and the activated carbon is located on the outer side of the heat dissipation fin.

[0017] By adopting the above technical solution, activated carbon is arranged inside the heat dissipation hole through snap-fitting. The activated carbon can adsorb dust in the motor inside the heat dissipation hole. The activated carbon and the heat dissipation hole are snap-fitted and connected, so that the activated carbon is easy to replace.

[0018] As a preferred technical solution of the utility model, a fixing block is fixedly installed on the outer side of the permanent magnet, and a fixing rod is fixedly installed inside the fixing block by bolts, and a cleaning brush is connected to the outer side of the fixing rod.

[0019] By adopting the above technical solution, a cleaning brush is arranged on the outside of the permanent magnet, and the cleaning brush 12) can rotate together with the permanent magnet to clean the inner wall of the rotor core.

[0020] As a preferred technical solution of the utility model, support rods are arranged at equal distances below the support plate, and the support rods are fixedly connected to the fixed bottom plate.

[0021] By adopting the above technical solution, support rods are arranged at equal distances below the support plate to support the support plate.

[0022] Compared with the prior art, the beneficial effects of the utility model are as follows: by setting a plurality of heat dissipation holes, the heat inside the motor can be dissipated from multiple places, thereby greatly improving the heat dissipation efficiency of the motor; at the same time, by using a cleaning brush to clean the dust inside the motor and then using activated carbon to absorb the dust, short circuit of the motor is avoided; in addition, the use of rubber pads greatly reduces the damage caused by motor vibration and extends the service life of the motor.

[0023] 1. The utility model provides heat dissipation holes, heat sinks and filters. Heat dissipation holes are provided at equal angles inside the motor housing and the rotor core. The heat dissipation holes are provided at multiple locations to quickly discharge the heat generated inside the motor. Meanwhile, heat sinks are installed inside the heat dissipation holes. The material of the heat sinks is relatively small metal, which absorbs heat quickly, that is, the surface area is increased to accelerate the heat dissipation inside the motor. In addition, a filter is provided outside the heat dissipation holes. The filter can prevent dust from entering the motor from the inside of the heat dissipation holes to avoid the occurrence of motor short circuit. Secondly, the filter and the motor housing are connected together by snapping, that is, the filter can be easily disassembled for cleaning.

[0024] 2. The utility model provides a fixing block, a fixing rod, a cleaning brush and a bolt. When the motor runs for a long time, some dust will be absorbed inside. Since the permanent magnet is provided at equal angles on the outside of the rotating shaft, when the rotating shaft rotates, the permanent magnet will rotate with the rotating shaft, that is, a fixing block is fixedly provided on the outside of the permanent magnet, a fixing rod is installed inside the fixing block, and the fixing rod is firmly fixed with bolts. In addition, a cleaning brush is fixedly connected to the outside of the fixing rod, and the cleaning brush is in contact with the inner wall of the rotor core. That is, when the rotating shaft rotates, the cleaning brush will also rotate with the rotating shaft. That is, when the cleaning brush rotates, it will sweep the inner wall of the rotor core. At the same time, activated carbon is installed in the heat dissipation holes provided at equal angles on the motor housing and the inner wall of the rotor core. When the cleaning brush sweeps up the dust, the activated carbon can absorb the dust, effectively avoiding the short circuit of the motor.

[0025] 3. The utility model generates a large amount of vibration when the motor is running by setting a fixed bottom plate, rubber pads, support plates and support rods, that is, rubber pads are set at the front and back of the lower outer side of the motor housing, the rubber pads have the characteristics of viscous damping, a support plate is installed under the rubber pad, and a support rod is set under the support plate for support, the support rod is fixedly connected to the fixed bottom plate, when the motor is running, the rubber pad can greatly reduce the damage caused by the motor vibration, thereby extending the service life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0028] Figure 2 It is a right side cross-sectional structural schematic diagram of the utility model;

[0029] Figure 3 This is a perspective structural diagram of the connection between the motor housing, the rotating shaft and the filter screen of the utility model;

[0030] Figure 4 This is a schematic diagram of the top cross-sectional structure of the utility model;

[0031] Figure 5 It is a perspective structural diagram of the fixing block, fixing rod and bolt connection of the utility model.

[0032] In the figure: 1. fixed base plate; 2. rivet; 3. motor housing; 4. rotor core; 5. rotating shaft; 6. permanent magnet; 7. heat dissipation hole; 8. heat sink; 9. filter; 10. fixed block; 11. fixed rod; 12. cleaning brush; 13. bolt; 14. activated carbon; 15. rubber pad; 16. support plate; 17. support rod. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] See also Figure 1-5The utility model provides the following technical solutions: a fixed base plate 1, a rivet 2, a motor housing 3, a rotor core 4, a rotating shaft 5, a permanent magnet 6, a heat dissipation hole 7, a heat sink 8, a filter screen 9, a fixed block 10, a fixed rod 11, a cleaning brush 12, a bolt 13, activated carbon 14, a rubber pad 15, a support plate 16 and a support rod 17;

[0035] First, as attached Figure 1 , Attachment Figure 2 and attached Figure 3 As shown in, the motor is supported by a fixed base plate 1, and positioning holes are symmetrically arranged inside the fixed base plate 1. The fixed base plate 1 is fixed to the position where it needs to be installed, and then the rivet 2 is inserted into the positioning hole of the fixed base plate 1 to fix the fixed base plate 1. When the motor is running, a large amount of heat will be generated inside, that is, a rotating shaft 5 is rotatably arranged inside the motor housing 3, and an electric fan is connected to the left side of the rotating shaft 5, so that the heat can be discharged from the left side of the motor housing 3. At the same time, a rotor core 4 is installed inside the motor housing 3, and heat dissipation holes 7 are opened at equal angles inside the motor housing 3 and the rotor core 4. The opening of multiple heat dissipation holes 7 can accelerate the discharge of the heat generated inside the motor. At the same time, a heat sink 8 is installed inside the heat dissipation hole 7. The material of the heat sink 8 is a relatively small metal, which absorbs heat quickly, and can increase the surface area to accelerate the heat dissipation inside the motor. In addition, a filter screen 9 is arranged on the outside of the heat dissipation hole 7, and the filter screen 9 can prevent dust from entering the motor from the inside of the heat dissipation hole 7 to avoid the occurrence of a motor short circuit. Secondly, the filter screen 9 and the motor housing 3 are snap-connected together, that is, the filter screen 9 is convenient to be disassembled for cleaning;

[0036] As attached Figure 2 , Attachment Figure 4 and attached Figure 5 As shown in , through the long-term operation of the motor, some dust will definitely be absorbed inside. Since the permanent magnet 6 is set at an equal angle on the outside of the rotating shaft 5, when the rotating shaft 5 rotates, the permanent magnet 6 will rotate with the rotating shaft 5, that is, a fixed block 10 is fixedly set on the outside of the permanent magnet 6, and a fixing rod 11 is installed inside the fixing block 10. The fixing rod 11 is firmly fixed by tightening the bolt 13. In addition, a cleaning brush 12 is fixedly connected to the outside of the fixing rod 11. The cleaning brush 12 is in contact with the inner wall of the rotor core 4, that is, when the rotating shaft 5 rotates, the cleaning brush 12 will also rotate with the rotating shaft 5. That is, when the cleaning brush 12 rotates, it will sweep the inner wall of the rotor core 4. At the same time, activated carbon 14 is installed in the heat dissipation holes 7 opened at equal angles on the motor housing 3 and the inner wall of the rotor core 4. When the cleaning brush 12 sweeps up the dust, the activated carbon 14 can absorb the dust, which can effectively avoid the motor from short-circuiting.

[0037] As attached Figure 2 and attached Figure 3As shown in the figure, a large amount of vibration is generated when the motor is running, which will damage the service life of the motor, that is, rubber pads 15 are arranged at the front and back of the lower outer side of the motor housing 3. The rubber pads 15 have the characteristics of viscous damping and can absorb vibration. In addition, a support plate 16 is installed under the rubber pad 15, and support rods 17 are arranged at equal distances under the support plate 16 for support. The support rods 17 are fixedly connected to the fixed base plate 1. When the motor is running, the rubber pads 15 can greatly reduce the damage caused by the vibration of the motor, thereby extending the service life of the motor.

[0038] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dual sliding film controlled permanent magnet synchronous motor with heat dissipation function, comprising: A fixed base plate (1), a motor housing (3) being fixedly mounted above the fixed base plate (1); It is characterized by further comprising: The motor housing (3) and the rotor core (4) are provided with heat dissipation mechanisms at equal angles, which include heat dissipation holes (7), heat sinks (8) and a filter screen (9); the motor housing (3) and the rotor core (4) are provided with heat dissipation holes (7) at equal angles, the heat sinks (8) are installed inside the heat dissipation holes (7), the filter screen (9) is provided outside the heat sinks (8), and the filter screen (9) is snap-fitted to the motor housing (3); A shock absorbing mechanism is arranged below the outer side of the motor housing (3), comprising a fixed bottom plate (1), a rubber pad (15), a support plate (16) and a support rod (17); the rubber pad (15) is symmetrically installed front and back below the outer side of the motor housing (3), and the support plate (16) is fixedly installed below the rubber pad (15).

2. The double sliding film controlled permanent magnet synchronous motor with heat dissipation function according to claim 1, characterized in that: Positioning holes are symmetrically provided inside the fixed base plate (1), and rivets (2) are installed inside the positioning holes symmetrically provided inside the fixed base plate (1).

3. The double sliding film controlled permanent magnet synchronous motor with heat dissipation function according to claim 1, characterized in that: A rotating shaft (5) is rotatably arranged inside the motor housing (3), and permanent magnets (6) are installed at equal angles on the outside of the rotating shaft (5), and a rotor core (4) is installed inside the motor housing (3).

4. The double sliding film controlled permanent magnet synchronous motor with heat dissipation function according to claim 1, characterized in that: Activated carbon (14) is mounted on the inner wall of the heat dissipation hole (7), and the activated carbon (14) is located outside the heat dissipation fin (8).

5. The double sliding film controlled permanent magnet synchronous motor with heat dissipation function according to claim 3, characterized in that: A fixing block (10) is fixedly mounted on the outer side of the permanent magnet (6), a fixing rod (11) is fixedly mounted inside the fixing block (10) by bolts (13), and a cleaning brush (12) is connected to the outer side of the fixing rod (11).

6. The double sliding film controlled permanent magnet synchronous motor with heat dissipation function according to claim 1, characterized in that: Support rods (17) are arranged at equal distances below the support plate (16), and the support rods (17) are fixedly connected to the fixed bottom plate (1).

Images