Heat dissipation device of permanent magnet direct drive motor

Abstract

The utility model provides a heat dissipation device of a permanent magnet direct drive motor. The heat dissipation device of the permanent magnet direct drive motor comprises a motor body, a plurality of sets of heat dissipation plates are evenly installed on the side wall of the motor body, a limiting plate is fixedly installed at the rear end of the motor body, a reciprocating lead screw is rotatably installed on the limiting plate, and a supporting frame is installed at the front end of the motor body. The supporting frame is rotationally connected with the reciprocating lead screw. According to the heat dissipation device of the permanent magnet direct drive motor, the output end of the motor body rotates, meanwhile, the reciprocating lead screw rotates continuously through linkage of the first belt wheel, the second belt wheel and the belt, the reciprocating lead screw drives the connecting rod to move back and forth along the reciprocating lead screw through the sliding sleeve, and the connecting rod drives the annular plate to move back and forth continuously through the connecting block. And the annular plate drives each group of scrapers to continuously scrape the side wall of the heat dissipation plate, so that dust attached to the heat dissipation plate is scraped off, the heat dissipation effect of the heat dissipation plate is better, and long-term work of the motor main body is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of direct drive motor technology, and in particular to a heat dissipation device for a permanent magnet direct drive motor. Background Technology

[0002] Direct drive motor, short for direct-drive motor. It refers to a motor that drives a load without requiring a transmission device (such as a drive belt). Direct drive motors are suitable for all types of washing machines, and their main advantages include quiet operation, energy saving, smooth operation, and strong power.

[0003] Currently, all existing direct drive motors are equipped with heat sinks. Due to the working environment of the motor, a lot of dust accumulates on the heat sink, which reduces the heat dissipation effect of the heat sink. As a result, the high temperature inside the motor cannot be dissipated in time, which damages the components.

[0004] Therefore, it is necessary to provide a heat dissipation device for a permanent magnet direct drive motor to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a heat dissipation device for a permanent magnet direct drive motor, which solves the problem that a large amount of dust adheres to the heat sink, resulting in poor heat dissipation of the direct drive motor.

[0006] To solve the above-mentioned technical problems, the heat dissipation device for a permanent magnet direct drive motor provided by this utility model includes: a motor body, several sets of heat dissipation plates evenly installed on the side wall of the motor body, a limit plate fixedly installed at the rear end of the motor body, a reciprocating screw rotatably installed on the limit plate, a support frame installed at the front end of the motor body, the support frame being rotatably connected to the reciprocating screw, a pulley one fixedly installed at the output end of the motor body, a pulley two fixedly installed at the front end of the reciprocating screw, a belt provided between the pulley two and the pulley one, a sliding sleeve threadedly connected to the reciprocating screw, connecting rods symmetrically installed on the side wall of the sliding sleeve, a connecting block installed at the upper end of each of the two sets of connecting rods, an annular plate fixedly installed at the upper end of the connecting block, several sets of scrapers evenly installed on the annular plate, the scrapers being in close contact with the side wall of the heat dissipation plate, the left and right ends of the two sets of connecting rods being fixedly connected to the two sets of scrapers respectively, connecting rods being fixedly installed between the other sets of scrapers, and a motor cover installed at the rear end of the motor body.

[0007] Preferably, the rear end of the motor body is provided with an internal thread, the inside of the motor cover is provided with an external thread, and the motor body and the motor cover are threadedly connected.

[0008] Preferably, a rotating shaft is fixedly installed at the middle of the rear end of the motor body, and a circular block is threadedly connected to the rear end of the rotating shaft.

[0009] Preferably, the circular block has an external thread inside, the rear end of the rotating shaft has an internal thread, and a fan blade is fixedly installed on the circular block.

[0010] Preferably, the rear end of the motor cover is provided with several sets of heat dissipation holes, and rectangular plates are symmetrically installed on the front side wall of the motor body.

[0011] Preferably, a limiting rod is fixedly installed on the limiting plate, the limiting rod passes through the connecting rod, and the limiting rod is slidably connected to the connecting rod.

[0012] Compared with related technologies, the heat dissipation device for the permanent magnet direct drive motor provided by this utility model has the following advantages:

[0013] Beneficial effects:

[0014] This utility model provides a heat dissipation device for a permanent magnet direct drive motor. While the output end of the motor body rotates, the reciprocating screw rotates continuously through the linkage of pulley one, pulley two and belt. The reciprocating screw drives the connecting rod to move back and forth along the reciprocating screw through the sliding sleeve. The connecting rod drives the annular plate to move back and forth continuously through the connecting block. The annular plate drives each set of scrapers to continuously scrape the side wall of the heat dissipation plate, removing the dust attached to the heat dissipation plate, making the heat dissipation effect of the heat dissipation plate better, which is beneficial to the long-term operation of the motor body. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of the heat dissipation device for a permanent magnet direct drive motor provided by this utility model;

[0016] Figure 2 for Figure 1 The diagram shows the internal structure of the motor body.

[0017] Figure 3 for Figure 1 The diagram shows the internal structure of the motor cover.

[0018] Figure 4 for Figure 2 The enlarged schematic diagram of part A is shown.

[0019] Numbering on the map:

[0020] 1. Motor body; 2. Belt pulley one; 3. Rectangular plate; 4. Heat sink plate; 5. Belt pulley two; 6. Connecting block; 7. Sliding sleeve; 8. Reciprocating screw; 9. Belt; 10. Motor cover; 11. Annular plate; 12. Limiting rod; 13. Rotating shaft; 14. Limiting plate; 15. Fan blade; 16. Circular block; 17. Heat dissipation hole; 18. External thread; 19. Internal thread; 20. Scraper; 21. Connecting rod; 22. Support frame. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic diagram of a preferred embodiment of the heat dissipation device for a permanent magnet direct drive motor provided by this utility model; Figure 2 for Figure 1 The diagram shows the internal structure of the motor body. Figure 3 for Figure 1 The diagram shows the internal structure of the motor cover. Figure 4 for Figure 2 The diagram shows an enlarged view of part A. The heat dissipation device of the permanent magnet direct drive motor includes: a motor body 1, with several sets of heat dissipation plates 4 evenly installed on the side walls of the motor body 1; a limit plate 14 fixedly installed at the rear end of the motor body 1, with a reciprocating lead screw 8 rotatably installed on the limit plate 14; a support frame 22 installed at the front end of the motor body 1, the support frame 22 being rotatably connected to the reciprocating lead screw 8; a pulley 2 fixedly installed at the output end of the motor body 1; a pulley 5 fixedly installed at the front end of the reciprocating lead screw 8; and a belt 9 provided between the pulley 5 and the pulley 2. A sliding sleeve 7 is threaded onto the reciprocating lead screw 8. Connecting rods 21 are symmetrically installed on the side wall of the sliding sleeve 7. Connecting blocks 6 are installed at the upper ends of both sets of connecting rods 21. An annular plate 11 is fixedly installed at the upper end of the connecting block 6. Several sets of scrapers 20 are evenly installed on the annular plate 11. The scrapers 20 are in close contact with the side wall of the heat sink 4. The left and right ends of the two sets of connecting rods 21 are fixedly connected to the two sets of scrapers 20 respectively. Connecting rods 21 are fixedly installed between the other sets of scrapers 20. A motor cover 10 is installed at the rear end of the motor body 1.

[0023] The rear end of the motor body 1 is provided with an internal thread 19, and the motor cover 10 is provided with an external thread 18. The motor body 1 and the motor cover 10 are threadedly connected.

[0024] The internal thread 19 and the external thread 18 are designed to facilitate the installation and removal of the motor body 1 and the motor cover 10.

[0025] A rotating shaft 13 is fixedly installed at the middle of the rear end of the motor body 1, and a circular block 16 is threadedly connected to the rear end of the rotating shaft 13.

[0026] The installation of the rotating shaft 13 transforms the motor body 1 into a dual-output motor.

[0027] The circular block 16 has an external thread inside, the rear end of the rotating shaft 13 has an internal thread, and a fan blade 15 is fixedly installed on the circular block 16.

[0028] With the installation of the rotating shaft 13, while the output end of the motor body 1 rotates, the rotating shaft 13 drives the fan blade 15 to rotate continuously through the circular block 16, thereby dissipating the high temperature inside the motor body 1.

[0029] The rear end of the motor cover 10 is provided with several sets of heat dissipation holes 17, and rectangular plates 3 are symmetrically installed on the front side wall of the motor body 1. The opening of the heat dissipation holes 17 is conducive to the exhaust of high temperature inside the motor body 1. The rectangular plates 3 are designed to facilitate the installation of the motor body 1 onto other equipment.

[0030] A limiting rod 12 is fixedly installed on the limiting plate 14. The limiting rod 12 passes through the connecting rod 21 and is slidably connected to the connecting rod 21.

[0031] The working principle of the heat dissipation device of the permanent magnet direct drive motor provided by this utility model is as follows: When the output end of the motor body 1 rotates, the reciprocating screw 8 rotates continuously through the linkage of pulley 2, pulley 5 and belt 9. The reciprocating screw 8 drives the connecting rod 21 to move back and forth along the reciprocating screw 8 through the sliding sleeve 7. The connecting rod 21 drives the annular plate 11 to move back and forth continuously through the connecting block 6. The annular plate 11 drives each set of scrapers 20 to scrape the side wall of the heat dissipation plate 4 continuously, scraping off the dust attached to the heat dissipation plate 4.

[0032] Compared with related technologies, the heat dissipation device for the permanent magnet direct drive motor provided by this utility model has the following advantages:

[0033] Beneficial effects:

[0034] While the output end of the motor body 1 rotates, the reciprocating screw 8 rotates continuously through the linkage of pulley 2, pulley 5 and belt 9. The reciprocating screw 8 drives the connecting rod 21 to move back and forth along the reciprocating screw 8 through the sliding sleeve 7. The connecting rod 21 drives the annular plate 11 to move back and forth continuously through the connecting block 6. The annular plate 11 drives each set of scrapers 20 to scrape the side wall of the heat sink 4, removing the dust attached to the heat sink 4, making the heat sink 4 have a better heat dissipation effect, which is beneficial to the long-term operation of the motor body 1.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A heat dissipation device for a permanent magnet direct drive motor, characterized in that, include: The motor body has several sets of heat dissipation plates evenly installed on its side walls. A limit plate is fixedly installed at the rear end of the motor body, and a reciprocating screw is rotatably installed on the limit plate. A support frame is installed at the front end of the motor body and is rotatably connected to the reciprocating screw. A pulley one is fixedly installed at the output end of the motor body, and a pulley two is fixedly installed at the front end of the reciprocating screw. A belt is provided between pulley two and pulley one. A sliding sleeve is threaded onto the reciprocating screw. Connecting rods are symmetrically installed on the side walls of the sliding sleeves. A connecting block is installed at the upper end of each of the two sets of connecting rods. An annular plate is fixedly installed at the upper end of the connecting block. Several sets of scrapers are evenly installed on the annular plate. The scrapers are in close contact with the side walls of the heat dissipation plates. The left and right ends of the two sets of connecting rods are fixedly connected to the two sets of scrapers, respectively. Connecting rods are fixedly installed between the other sets of scrapers. A motor cover is installed at the rear end of the motor body.

2. The heat dissipation device for the permanent magnet direct drive motor according to claim 1, characterized in that, The motor body has an internal thread at its rear end, and the motor cover has an external thread inside. The motor body and the motor cover are threaded together.

3. The heat dissipation device for the permanent magnet direct drive motor according to claim 1, characterized in that, A rotating shaft is fixedly installed at the middle of the rear end of the motor body, and a circular block is threadedly connected to the rear end of the rotating shaft.

4. The heat dissipation device for the permanent magnet direct drive motor according to claim 3, characterized in that, The circular block has an external thread inside, the rear end of the rotating shaft has an internal thread, and a fan blade is fixedly installed on the circular block.

5. The heat dissipation device for the permanent magnet direct drive motor according to claim 1, characterized in that, The rear end of the motor cover has several sets of heat dissipation holes, and rectangular plates are symmetrically installed on the front side wall of the motor body.

6. The heat dissipation device for the permanent magnet direct drive motor according to claim 1, characterized in that, A limiting rod is fixedly installed on the limiting plate. The limiting rod passes through the connecting rod and is slidably connected to the connecting rod.

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