Permanent magnet synchronous motor shell structure integrated with heat dissipation anti-interference channel

Abstract

The utility model relates to the technical field of permanent magnet synchronous motors, and discloses a permanent magnet synchronous motor shell structure integrated with a heat dissipation anti-interference channel, the permanent magnet synchronous motor shell structure comprises a motor shell main body and a rear cover, the inner wall of the motor shell main body is provided with a heat conduction layer, the motor shell main body is internally provided with a heat dissipation channel, and the heat dissipation channel spirally surrounds the motor shell main body. A liquid inlet and a liquid outlet are formed in the two ends of the heat dissipation channel respectively, a shielding cover used for blocking external electromagnetic interference is arranged on the outer wall of the motor shell body, a quick disassembly mechanism facilitating motor assembly is installed on the inner wall of the rear cover, a plurality of heat dissipation fins are fixedly connected to the outer wall of the motor shell body, and a plurality of heat dissipation holes are formed in the outer walls of the heat dissipation fins. According to the utility model, through rapid heat conduction of the heat conduction layer, cooperation of the spiral heat dissipation channels with circulation of the cooling medium, and design of the heat dissipation fins and the honeycomb-shaped heat dissipation holes, heat dissipation efficiency is greatly improved, and the temperature of the motor is effectively reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of permanent magnet synchronous motors, in particular to a permanent magnet synchronous motor shell structure integrating heat dissipation and anti-interference channels. BACKGROUND

[0002] Permanent magnet synchronous motors have the advantages of high efficiency and energy saving, and are widely used in industrial production, new energy vehicles and other fields. However, a large amount of heat is generated during the operation of the motor, and if the heat cannot be dissipated in time, the performance of the motor will be reduced, the service life will be shortened, and even faults will occur. At the same time, with the increasing complexity of the application environment of the motor, the influence of external electromagnetic interference on the motor cannot be ignored, and the existing motor shell structure is often difficult to meet the requirements of heat dissipation and anti-interference at the same time.

[0003] For example, although some heat dissipation structures can dissipate heat to a certain extent, they do not consider the shielding problem of electromagnetic interference, and some anti-interference structures will affect the heat dissipation effect or have a complex structure and high cost. Therefore, the permanent magnet synchronous motor shell structure integrating heat dissipation and anti-interference channels is proposed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a permanent magnet synchronous motor shell structure integrating heat dissipation and anti-interference channels to solve the problems of the existing permanent magnet synchronous motor shell in heat dissipation and anti-interference.

[0005] The permanent magnet synchronous motor shell structure integrating heat dissipation and anti-interference channels provided by the application adopts the following technical scheme:

[0006] The permanent magnet synchronous motor shell structure integrating heat dissipation and anti-interference channels comprises a motor shell body and a rear cover, the inner wall of the motor shell body is provided with a heat conduction layer for quickly conducting the heat generated in the motor to the shell, the inside of the motor shell body is provided with a heat dissipation channel, the heat dissipation channel spirally surrounds the motor shell body, and the two ends of the heat dissipation channel are respectively provided with a liquid inlet and a liquid outlet for passing in cooling medium to exchange heat, the outer wall of the motor shell body is provided with a shielding cover for blocking external electromagnetic interference, the inner wall of the rear cover is provided with a quick release mechanism for facilitating the assembly of the motor, the outer wall of the motor shell body is fixedly connected with a plurality of heat dissipation fins, the plurality of heat dissipation fins are evenly distributed in an equidistant circumferential array, the outer wall of the heat dissipation fin is provided with a plurality of heat dissipation holes, and the plurality of heat dissipation holes are distributed in a honeycomb shape.

[0007] Preferably, the outer wall of the shielding cover is provided with a plurality of avoiding grooves, the plurality of avoiding grooves are correspondingly inserted with the plurality of heat dissipation fins, and the outer wall of the shielding cover is further provided with a grounding wire connected with the grounding end of the motor.

[0008] Preferably, the quick release mechanism comprises a plurality of fixed frames fixedly connected to the inner wall of the rear cover, the inner wall of the fixed frame is provided with a movable plate, the movable plate is attached to the inner wall of the rear cover, the outer wall of the movable plate is fixedly connected with a clamping column, one end of the clamping column penetrates the rear cover, and the other end of the clamping column penetrates the fixed frame and is fixedly connected with a connecting rod.

[0009] Preferably, the quick release mechanism further comprises a reset spring sleeved on the outer wall of the clamping column, one end of the reset spring is fixedly connected to the outer wall of the movable plate, and the other end of the reset spring is fixedly connected to the inner wall of the fixed frame.

[0010] Preferably, the outer wall of the rear cover is provided with a plurality of sliding grooves, the connecting rod is designed in an "L" shape, one end of the connecting rod away from the clamping column penetrates the sliding groove and extends out of the outer wall of the rear cover, the middle outer wall of the rear cover is rotationally connected with a linkage rotary disc through a rotating shaft, the outer wall of the linkage rotary disc is provided with a plurality of arc-shaped grooves, one end of the connecting rod located outside the rear cover is slidingly connected to the inner wall of the arc-shaped groove, and the middle outer wall of the linkage rotary disc is fixedly connected with a knob.

[0011] Preferably, a heat insulation pad is arranged between the heat conduction layer and the motor shell body.

[0012] In summary, the present application has the following beneficial technical effects:

[0013] 1. The heat conduction layer quickly conducts heat, the spiral-shaped heat dissipation channel cooperates with the circulation of the cooling medium, and the design of the heat dissipation fins and the honeycomb-shaped heat dissipation holes greatly improves the heat dissipation efficiency and effectively reduces the motor temperature.

[0014] 2. The shielding cover is made of metal copper, which has good conductivity and shielding properties for high-frequency electromagnetic interference, so that it can more effectively block external electromagnetic interference. The grounding wire guides the induced charge into the ground, further enhancing the anti-interference ability and ensuring the stable operation of the motor in a complex electromagnetic environment.

[0015] 3. The quick release mechanism rotates the linkage rotary disc through the knob, drives the connecting rod and the clamping column to move, realizes the quick installation and disassembly of the rear cover and the motor shell body, and improves the convenience of motor assembly and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a whole schematic view of the application embodiment;

[0017] Figure 2 is an exploded perspective view of the application embodiment;

[0018] Figure 3 is Figure 2 is an enlarged schematic view of the structure at A in the middle;

[0019] Figure 4is an exploded rear view of the rear cover in the application embodiment;

[0020] Figure 5 is an internal exploded view of the motor housing body in the application embodiment.

[0021] Reference signs: 1, motor housing body; 2, rear cover; 3, shielding cover; 4, avoiding groove; 5, grounding wire; 6, heat dissipation channel; 7, liquid inlet; 8, liquid outlet; 9, heat dissipation fin; 10, heat dissipation hole; 11, heat conduction layer; 12, heat insulation pad; 13, fixed frame; 14, movable plate; 15, clamping column; 16, reset spring; 17, connecting rod; 18, sliding groove; 19, linkage rotating disc; 20, arc-shaped groove; 21, knob; 22, clamping groove. DETAILED DESCRIPTION

[0022] The following will be described in detail with reference to the accompanying drawings Figures 1-5 The application is further described in detail.

[0023] The application embodiment discloses a permanent magnet synchronous motor housing structure integrated with heat dissipation and anti-interference channels. Figures 1-5 A permanent magnet synchronous motor housing structure integrated with heat dissipation and anti-interference channels, comprising a motor housing body 1 and a rear cover 2, the inner wall of the motor housing body 1 is provided with a heat conduction layer 11 for quickly conducting heat generated inside the motor to the housing, the inside of the motor housing body 1 is provided with a heat dissipation channel 6, the heat dissipation channel 6 spirally surrounds in the motor housing body 1, and the two ends of the heat dissipation channel 6 are respectively provided with a liquid inlet 7 and a liquid outlet 8 for passing in cooling medium for heat exchange, the outer wall of the motor housing body 1 is provided with a shielding cover 3 for blocking external electromagnetic interference, and the inner wall of the rear cover 2 is provided with a quick release mechanism for facilitating assembly of the motor.

[0024] The outer wall of the motor housing body 1 is fixedly connected with a plurality of heat dissipation fins 9, the plurality of heat dissipation fins 9 are evenly distributed in an equidistant circumferential array, the outer wall of the heat dissipation fin 9 is provided with a plurality of heat dissipation holes 10, and the plurality of heat dissipation holes 10 are distributed in a honeycomb shape. This design increases the heat dissipation area and improves the heat dissipation efficiency.

[0025] The outer wall of the shielding cover 3 is provided with a plurality of avoiding grooves 4, the plurality of avoiding grooves 4 are correspondingly inserted with the plurality of heat dissipation fins 9, so as to ensure reasonable assembly of the shielding cover 3 and the motor housing body 1. The shielding cover 3 is made of metal copper, and its good electrical conductivity makes the electromagnetic shielding performance better, which has a good shielding effect on high-frequency electromagnetic interference. The outer wall of the shielding cover 3 is further provided with a grounding wire 5, the grounding wire 5 is connected with the grounding end of the motor, so as to guide the charge induced on the shielding cover 3 into the ground, thereby enhancing the anti-interference effect.

[0026] The quick release mechanism comprises a plurality of fixed frames 13 fixedly connected to the inner wall of the rear cover 2, the inner wall of the fixed frame 13 is provided with a movable plate 14, the movable plate 14 is attached to the inner wall of the rear cover 2, the outer wall of the movable plate 14 is fixedly connected with a clamping column 15, one end of the clamping column 15 penetrates through the rear cover 2, and the other end of the clamping column 15 penetrates through the fixed frame 13 and is fixedly connected with a connecting rod 17.

[0027] The quick release mechanism further comprises a reset spring 16 sleeved on the outer wall of the clamping column 15, one end of the reset spring 16 is fixedly connected to the outer wall of the movable plate 14, and the other end of the reset spring 16 is fixedly connected to the inner wall of the fixed frame 13. The inner wall of the motor shell body 1 is provided with a plurality of clamping grooves 22 matched with the clamping column 15.

[0028] The outer wall of the rear cover 2 is provided with a plurality of sliding grooves 18, the connecting rod 17 is designed in an L shape, one end of the connecting rod 17 away from the clamping column 15 penetrates through the sliding groove 18 and extends to the outside of the rear cover 2, the middle outer wall of the rear cover 2 is rotationally connected with a linkage rotary disc 19 through a rotating shaft, the outer wall of the linkage rotary disc 19 is provided with a plurality of arc-shaped grooves 20, one end of the connecting rod 17 located outside the rear cover 2 is slidingly connected to the inner wall of the arc-shaped groove 20, and the middle outer wall of the linkage rotary disc 19 is fixedly connected with a rotary knob 21.

[0029] The rear cover 2 provided with the quick release mechanism is assembled with the motor shell body 1, the rotary knob 21 is rotated, the linkage rotary disc 19 is rotated, the connecting rod 17 is moved through the arc-shaped groove 20, the clamping column 15 is inserted into the clamping groove 22 in the inner wall of the motor shell body 1, and the connection between the rear cover 2 and the motor shell body 1 is completed.

[0030] The heat-conducting layer 11 is provided with a heat insulation pad 12 between the heat-conducting layer 11 and the motor shell body 1, the heat insulation pad 12 can reduce the heat loss to the outside of the motor shell body 1 and avoid the influence of the high temperature of the motor shell body 1 on the surrounding environment.

[0031] The implementation principle of the integrated heat dissipation anti-interference channel permanent magnet synchronous motor shell structure is that the heat generated by motor operation is quickly conducted to the inner wall of the heat dissipation channel 6 through the heat-conducting layer 11, the cooling medium enters the heat dissipation channel 6 from the liquid inlet 7, absorbs heat during the flowing process in the spiral channel, and then flows out from the liquid outlet 8, enters the external cooling system (not shown in the figure) for temperature reduction and recycling, meanwhile, the heat dissipation fins 9 and the heat dissipation holes 10 increase the contact area with air, assist the heat dissipation channel 6 to dissipate heat, and improve the overall heat dissipation efficiency.

[0032] When encountering the shielding cover 3 made of metal copper, most of the electromagnetic interference is blocked and attenuated by the shielding cover 3 due to the good conductivity of copper, and cannot enter the motor interior, the electric charge induced on the shielding cover 3 is led to the ground through the grounding wire 5, and the anti-interference capability is further enhanced, thereby providing a good electromagnetic environment for the motor.

[0033] When the rear cover 2 needs to be disassembled for motor maintenance or overhaul, the knob 21 is rotated reversely, the linkage rotating disc 19 is rotated reversely, the connecting rod 17 is moved through the arc-shaped groove 20, the clamping column 15 is withdrawn from the clamping groove 22, and then the rear cover 2 can be easily removed. When installing, the reverse operation steps are performed, and the reset spring 16 can ensure that the clamping column 15 is stably clamped in the clamping groove 22 after being installed in place.

[0034] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. An integrated heat-dissipation anti-interference channel permanent magnet synchronous motor shell structure, comprising a motor shell body (1) and a rear cover (2), characterized in that: The inner wall of the motor shell body (1) is provided with a heat conduction layer (11) for quickly conducting the heat generated inside the motor to the shell, the inside of the motor shell body (1) is provided with a heat dissipation channel (6) which spirally surrounds the motor shell body (1), and the two ends of the heat dissipation channel (6) are respectively provided with a liquid inlet (7) and a liquid outlet (8) for passing in cooling medium for heat exchange, the outer wall of the motor shell body (1) is provided with a shielding cover (3) for blocking external electromagnetic interference, the inner wall of the rear cover (2) is provided with a quick release mechanism for facilitating the assembly of the motor, the outer wall of the motor shell body (1) is fixedly connected with a plurality of heat dissipation fins (9), and the plurality of heat dissipation fins (9) are evenly distributed in an equidistant circumferential array, a plurality of heat dissipation holes (10) are formed in the outer wall of the heat dissipation fin (9), and the plurality of heat dissipation holes (10) are distributed in a honeycomb shape.

2. The housing structure of the integrated heat-dissipation anti-interference channel permanent magnet synchronous motor according to claim 1, characterized in that: The outer wall of the shielding cover (3) is provided with a plurality of avoiding grooves (4), the plurality of avoiding grooves (4) are correspondingly inserted with the plurality of heat dissipation fins (9), and the outer wall of the shielding cover (3) is further provided with a grounding wire (5) connected with the grounding end of the motor.

3. The housing structure of the integrated heat-dissipation anti-interference channel permanent magnet synchronous motor according to claim 1, characterized in that: The quick release mechanism comprises a plurality of fixed frames (13) fixedly connected to the inner wall of the rear cover (2), the inner wall of the fixed frame (13) is provided with a movable plate (14), the movable plate (14) is attached to the inner wall of the rear cover (2), the outer wall of the movable plate (14) is fixedly connected with a clamping column (15), one end of the clamping column (15) penetrates through the rear cover (2), and the other end penetrates through the fixed frame (13) and is fixedly connected with a connecting rod (17).

4. The housing structure of the integrated heat-dissipation anti-interference channel permanent magnet synchronous motor according to claim 3, characterized in that: The quick release mechanism further comprises a reset spring (16) sleeved on the outer wall of the clamping column (15), one end of the reset spring (16) is fixedly connected to the outer wall of the movable plate (14), and the other end is fixedly connected to the inner wall of the fixed frame (13), and the inner wall of the motor shell body (1) is provided with a plurality of clamping grooves (22) matched with the clamping column (15).

5. The housing structure of an integrated heat-dissipation anti-interference channel permanent magnet synchronous motor according to claim 4, characterized in that: The outer wall of the rear cover (2) is provided with a plurality of sliding grooves (18), the connecting rod (17) is designed in an "L" shape, one end of the connecting rod (17) away from the clamping column (15) extends outside the rear cover (2) through the sliding groove (18), the middle outer wall of the rear cover (2) is rotatably connected with a linkage rotating disc (19) through a rotating shaft, the outer wall of the linkage rotating disc (19) is provided with a plurality of arc-shaped grooves (20), one end of the connecting rod (17) outside the rear cover (2) is slidably connected to the inner wall of the arc-shaped groove (20), and the middle outer wall of the linkage rotating disc (19) is fixedly connected with a knob (21).

6. The housing structure of an integrated heat-dissipation anti-interference channel permanent magnet synchronous motor according to claim 1, characterized in that: The heat conduction layer (11) and the motor shell body (1) are provided with a heat insulation pad (12).

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