Permanent magnet motor with efficient heat dissipation

Abstract

The invention relates to the field of heat dissipation of permanent magnet motors, and discloses an efficient heat dissipation permanent magnet motor which comprises a mounting plate and a motor body, a cold water cavity is formed in the mounting plate, heat dissipation fins are uniformly and fixedly connected to the outer wall of the motor body, and an annular sliding rail is fixedly connected to the outer walls of the heat dissipation fins. An annular water pipe is slidably connected to the interior of the annular sliding rail, a gear ring is fixedly connected to one side of the annular water pipe, a circular gear is connected to the tooth end of the gear ring in a meshed mode, a rotating shaft is fixedly connected to the inner wall of the circular gear, and the outer wall of the rotating shaft is rotatably connected to the interior of the fixing plate; the outer wall of the annular water pipe is slidably connected into the cold water cavity. The circular gear drives the gear ring to rotate, the annular water pipe slides along the annular sliding rail, water flows relatively due to movement, the heat exchange efficiency is improved, meanwhile, the outer wall of the bottom of the annular water pipe continuously makes contact with cooling water in the cold water cavity, the water temperature is reduced through heat conduction, and the heat dissipation capacity is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of permanent magnet motor heat dissipation technology, specifically to a permanent magnet motor with high-efficiency heat dissipation. Background Technology

[0002] A permanent magnet motor is a rotating motor that uses permanent magnets to establish an air gap excitation magnetic field. When a permanent magnet motor is running, it will inevitably generate energy loss, all of which will be converted into heat. If the heat cannot be dissipated in time, it will cause a series of structural failures and performance degradation problems in the permanent magnet motor. Therefore, it is necessary to control the temperature rise through heat dissipation operations to avoid the heat converted from energy loss from damaging the core components of the motor.

[0003] Traditional permanent magnet motors absorb the heat dissipated by the motor through cooling water. However, the water has poor flowability, resulting in uneven water temperature and ineffective heat dissipation for the permanent magnet motor, thus reducing its service life. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a high-efficiency heat dissipation permanent magnet motor. This solves the problem that traditional permanent magnet motors absorb heat dissipated by the motor through cooling water. However, the traditional cooling method suffers from poor water flow, resulting in uneven water temperature and ineffective heat dissipation for the permanent magnet motor, thus reducing its service life.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency heat dissipation permanent magnet motor, comprising a mounting plate and a motor body. The mounting plate has a cold water chamber inside. Heat dissipation fins are uniformly fixed to the outer wall of the motor body. An annular slide rail is fixed to the outer wall of the heat dissipation fins. An annular water pipe is slidably connected inside the annular slide rail. A gear ring is fixedly connected to one side of the annular water pipe. A circular gear is meshed with the tooth ends of the gear ring. A rotating shaft is fixedly connected to the inner wall of the circular gear. A fixing plate is symmetrically fixed to the top of the mounting plate. The outer wall of the rotating shaft is rotatably connected to the fixing plate. The outer wall of the annular water pipe is slidably connected to the cold water chamber. An air-cooling component is installed on one side of the heat dissipation fins.

[0006] By adopting the above technical solution, when the circular gear rotates, it drives the gear ring that meshes with it to rotate, which in turn drives the annular water pipe to slide along the annular slide rail. The water flow inside the annular water pipe generates relative flow due to the movement, breaking the laminar flow state and enhancing the heat exchange efficiency. At the same time, the bottom outer wall of the annular water pipe is in continuous contact with the cooling water in the cold water chamber, which reduces the water temperature through heat conduction, thereby achieving efficient heat dissipation for the motor.

[0007] Preferably, a first driven wheel is fixedly connected to one end of the rotating shaft, a first belt is provided on the outer wall of the first driven wheel, a first driving wheel is installed on the inner wall of one end of the first belt, a support shaft is fixedly connected to the inner wall of the first driving wheel, and one end of the support shaft is fixedly connected to the output end of the motor body.

[0008] Preferably, a scraper is fixedly connected to one side of the mounting plate near the cold water chamber, and the other side of the scraper is fitted against the outer wall of the annular water pipe.

[0009] Preferably, the air-cooling assembly includes a rear cover, one side of which is fixedly connected to one side of the heat dissipation fins, and a filter screen is installed on the other side of the rear cover. A rotating shaft is rotatably connected inside the filter screen, and fan blades are uniformly fixedly connected to one end of the rotating shaft.

[0010] Preferably, a second driving wheel is fixedly connected to the other end of the rotating shaft, a second belt is provided on the outer wall of the second driving wheel, a second driven wheel is installed on the inner wall of one end of the second belt, and the inner wall of the second driven wheel is fixedly connected to the outer wall of the rotating shaft.

[0011] Preferably, a brush is fixedly connected to the outer wall of the rotating shaft, and one side of the brush is attached to one side of the filter screen.

[0012] Preferably, a fixing bracket is fixedly connected to one side of both the motor body and the rear cover, and mounting holes are symmetrically opened inside the fixing bracket.

[0013] Preferably, the mounting hole of the fixing frame is internally threaded with a bolt.

[0014] Preferably, a connecting pipe is fixedly connected to one side of the annular water pipe, and a valve is installed on the outer wall of the connecting pipe.

[0015] Preferably, a miniature water pump is fixedly connected to one side of the mounting plate, the output end of the miniature water pump is fixedly connected to a delivery pipe, and the input end of the miniature water pump is fixedly connected to the cold water chamber.

[0016] Working principle: During installation, first move the permanent magnet motor to the target position, then insert the bolts into the mounting holes of the fixing bracket and tighten them in conjunction with the pre-set threaded holes. For disassembly, first unscrew the bolts. The motor body is powered on and rotates, its output end driving the support shaft to rotate. This causes the first driving wheel to drive the first driven wheel via the first belt. The first driven wheel then drives the rotating shaft to rotate within the fixing plate. The rotating shaft drives the circular gear to rotate, which in turn drives the meshing gear ring. The gear ring then drives the annular water pipe to slide along the annular slide rail. Simultaneously, the cooling water adhering to the outer wall of the annular water pipe is scraped off by the scraper. The water inside the pipe flows relatively due to inertia, and the bottom... The outer wall contacts the cold water chamber to transfer heat; at the other end of the rotating shaft, the second driving wheel drives the second driven wheel through the second belt, and the second driven wheel drives the rotating shaft to rotate inside the filter screen. The rotating shaft first drives the fan blades to rotate, creating negative pressure in the rear cover. External air enters the rear cover after being filtered by the filter screen for blowing and heat dissipation. At the same time, the rotating shaft drives the brush to clean the filter screen. When replenishing water in the annular water pipe, first open the valve, then use the water pipe connector to connect the delivery pipe and the connecting pipe, and start the micro water pump to pump water. When replenishing water to the cold water chamber, first use the water pipe connector to connect the delivery pipe and the external water inlet pipe, and then start the micro water pump. The micro water pump can operate in both directions.

[0017] This invention provides a permanent magnet motor with high-efficiency heat dissipation. It has the following beneficial effects: 1. This invention uses a circular gear to drive a meshing gear ring to rotate, which in turn drives an annular water pipe to slide along an annular slide rail. Due to inertia, the water inside the annular water pipe flows relative to each other, breaking the laminar flow state inside the pipe and enhancing the heat exchange efficiency with the heat dissipation fins. At the same time, the bottom outer wall of the annular water pipe continuously slides in contact with the cold water chamber, transferring the heat of the hot water inside the pipe to the cooling water in the cold water chamber through heat conduction, thereby achieving the cooling of the water inside the annular water pipe and thus achieving efficient heat dissipation for the permanent magnet motor.

[0018] 2. When the rotating shaft rotates, the second driving wheel at the other end will rotate synchronously. The second driving wheel drives the second driven wheel to rotate through the second belt, thus driving the rotating shaft to rotate inside the filter screen. When the rotating shaft rotates, the fan blades will rotate synchronously. The rotation of the fan blades creates a negative pressure inside the rear cover. After being filtered by the filter screen, the outside air enters the interior of the rear cover and directly blows on the heat dissipation fins and the outer wall of the motor body, forming a composite heat dissipation with the water cooling system, further reducing the temperature of the motor body.

[0019] 3. When the rotating shaft of this invention rotates, it drives the brush to rotate synchronously. The brush cleans the dust and impurities on the surface of the filter screen in real time, avoiding the filter screen from clogging and causing insufficient air intake, ensuring the continuity of the air cooling effect, and extending the service life of the filter screen. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2This is a partial structural diagram of the annular water pipe of the present invention; Figure 3 This is a schematic diagram of a partial structure of the motor body of the present invention; Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a partial structural diagram of the support shaft of the present invention; Figure 6 This is a partial structural diagram of the second belt of the present invention; Figure 7 This is a partial structural diagram of the back cover of the present invention.

[0021] The components include: 1. Mounting plate; 101. Cold water chamber; 2. Motor body; 201. Heat dissipation fins; 202. Annular slide rail; 203. Annular water pipe; 204. Gear ring; 205. Circular gear; 206. Rotating shaft; 207. Fixing plate; 3. First driven wheel; 301. First belt; 302. First driving wheel; 303. Support shaft; 4. Scraper; 5. Rear cover; 501. Filter screen; 502. Rotating shaft; 503. Fan blade; 6. Second driving wheel; 601. Second belt; 602. Second driven wheel; 603. Brush; 7. Fixing frame; 701. Bolt; 8. Connecting pipe; 801. Valve; 9. Miniature water pump; 901. Delivery pipe. Detailed Implementation

[0022] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 -Appendix Figure 4 This invention provides a high-efficiency heat dissipation permanent magnet motor, including a mounting plate 1 and a motor body 2. The mounting plate 1 has a cold water chamber 101 inside. Heat dissipation fins 201 are uniformly fixedly connected to the outer wall of the motor body 2. An annular slide rail 202 is fixedly connected to the outer wall of the heat dissipation fins 201. An annular water pipe 203 is slidably connected inside the annular slide rail 202. A gear ring 204 is fixedly connected to one side of the annular water pipe 203. A circular gear 205 is meshed with the tooth end of the gear ring 204. A rotating shaft 206 is fixedly connected to the inner wall of the circular gear 205. A fixing plate 207 is symmetrically fixedly connected to the top of the mounting plate 1. The outer wall of the rotating shaft 206 is rotatably connected to the fixing plate 207. The outer wall of the annular water pipe 203 is slidably connected to the cold water chamber 101. An air-cooling component is installed on one side of the heat dissipation fins 201.

[0024] Specifically, when the permanent magnet motor is in operation, the heat dissipation fins 201 transfer the heat of the motor body 2 to the annular water pipe 203. When the circular gear 205 rotates, it drives the gear ring 204 that meshes with it to rotate, causing the annular water pipe 203 to slide along the annular slide rail 202. When the annular water pipe 203 slides, the water inside it flows relatively within the annular water pipe 203 due to inertia, breaking the laminar flow state inside the pipe and enhancing the heat exchange efficiency with the heat dissipation fins 201. At the same time, the bottom outer wall of the annular water pipe 203 continuously slides in contact with the cold water chamber 101, transferring the heat of the hot water inside the pipe to the cooling water in the cold water chamber 101 through heat conduction, thereby achieving the cooling of the water inside the annular water pipe 203 and thus achieving efficient heat dissipation for the permanent magnet motor.

[0025] Please see the appendix Figure 1 -Appendix Figure 4 One end of the rotating shaft 206 is fixedly connected to a first driven wheel 3. The outer wall of the first driven wheel 3 is provided with a first belt 301. The inner wall of one end of the first belt 301 is equipped with a first driving wheel 302. The inner wall of the first driving wheel 302 is fixedly connected to a support shaft 303. One end of the support shaft 303 is fixedly connected to the output end of the motor body 2.

[0026] Specifically, when the motor body 2 is powered on, its output end will drive the support shaft 303 to rotate synchronously. When the support shaft 303 rotates, it will drive the first driving wheel 302 to rotate. The first driving wheel 302 drives the first driven wheel 3 through the first belt 301 on the outer wall. The first driven wheel 3 will drive the rotating shaft 206 to rotate in the fixed plate 207. When the rotating shaft 206 rotates, it causes the circular gear 205 to rotate, ultimately realizing the rotation of the annular water pipe 203, achieving a linkage effect, reducing the consumption of additional energy, and lowering the cost of use.

[0027] Please see the appendix Figure 4 A scraper 4 is fixedly connected to one side of the mounting plate 1 near the cold water chamber 101, and the other side of the scraper 4 is attached to the outer wall of the annular water pipe 203.

[0028] Specifically, when the annular water pipe 203 slides in the cold water chamber 101, the cooling water in the cold water chamber 101 will adhere to its outer wall, forming residual water. When the annular water pipe 203 slides along the annular slide rail 202, the residual water on its outer wall will be scraped off by the scraper 4 to prevent the residual water from affecting the normal operation of the permanent magnet motor.

[0029] Please see the appendix Figure 5 -Appendix Figure 7The air-cooling assembly includes a rear cover 5, one side of which is fixedly connected to one side of the heat dissipation fins 201. A filter screen 501 is installed on the other side of the rear cover 5. A rotating shaft 502 is rotatably connected inside the filter screen 501. Fan blades 503 are evenly fixedly connected to one end of the rotating shaft 502. A second drive wheel 6 is fixedly connected to the other end of the rotating shaft 206. A second belt 601 is provided on the outer wall of the second drive wheel 6. A second driven wheel 602 is installed on the inner wall of one end of the second belt 601. The inner wall of the second driven wheel 602 is fixedly connected to the outer wall of the rotating shaft 502. A brush 603 is fixedly connected to the outer wall of the rotating shaft 502. One side of the brush 603 is attached to one side of the filter screen 501.

[0030] Specifically, when the rotating shaft 206 rotates, the second driving wheel 6 at the other end will rotate synchronously. The second driving wheel 6 drives the second driven wheel 602 to rotate through the second belt 601, thus driving the rotating shaft 502 to rotate inside the filter screen 501. When the rotating shaft 502 rotates, the fan blades 503 will rotate synchronously. The rotation of the fan blades 503 creates a negative pressure inside the rear cover 5. After being filtered by the filter screen 501, the outside air enters the interior of the rear cover 5 and directly blows onto the heat dissipation fins 201 and the outer wall of the motor body 2, forming a composite heat dissipation with the water cooling system, further reducing the temperature of the motor body 2. Moreover, the design of water cooling and air cooling linkage is realized by the same power source, which improves energy utilization efficiency and enhances heat dissipation capacity. At the same time, when the rotating shaft 502 rotates, it will drive the brush 603 to rotate synchronously. During the air cooling process, it can automatically clean the filter screen 501. The brush 603 cleans the dust and impurities on the surface of the filter screen 501 in real time, preventing the filter screen 501 from clogging. This ensures that the outside air can pass smoothly through the filter screen 501 into the interior of the back cover 5, maintain a good air cooling effect, extend the service life of the filter screen 501, and reduce maintenance costs.

[0031] Please see the appendix Figure 5 -Appendix Figure 6 The motor body 2 and the rear cover 5 are both fixedly connected to one side of a mounting bracket 7. The mounting bracket 7 has symmetrical mounting holes inside. Bolts 701 are threaded into the mounting holes of the mounting bracket 7.

[0032] Specifically, after moving the permanent magnet motor to the target installation position, insert the bolt 701 into the mounting hole of the fixing bracket 7, and tighten the bolt 701 by engaging the thread of the bolt 701 with the threaded hole of the installation position until the fixing bracket 7 is tightly fitted with the mounting surface to prevent displacement due to vibration during motor operation. At the same time, when disassembling, simply unscrew the bolt 701 counterclockwise to improve the convenience of installation and maintenance.

[0033] Please see the appendix Figure 5 -Appendix Figure 7A connecting pipe 8 is fixedly connected to one side of the annular water pipe 203, and a valve 801 is installed on the outer wall of the connecting pipe 8; a micro water pump 9 is fixedly connected to one side of the mounting plate 1, a delivery pipe 901 is fixedly connected to the output end of the micro water pump 9, and the input end of the micro water pump 9 is fixedly connected to the cold water chamber 101.

[0034] Specifically, when it is necessary to replenish or replace the water in the annular water pipe 203, first open the valve 801, connect the delivery pipe 901 to the connecting pipe 8 through the water pipe joint, start the micro water pump 9, its input end will draw cooling water from the cold water chamber 101, and deliver the cooling water to the connecting pipe 8 through the delivery pipe 901, and finally inject it into the annular water pipe 203. After the water replenishment or replacement is completed, close the valve 801 and remove the water pipe joint. When water needs to be added to the cold water chamber 101, the delivery pipe 901 is connected to the external water inlet pipe through the water pipe connector, and the micro water pump 9 is started. External cooling water will enter the cold water chamber 101 through the delivery pipe 901 and the input end of the micro water pump 9 until the water volume in the cold water chamber 101 reaches the preset value, thus achieving rapid water replenishment. The micro water pump 9 adopts a bidirectional design.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency heat-dissipation permanent magnet motor, comprising a mounting plate (1) and a motor body (2), characterized in that: The inside of the mounting plate (1) is provided with a cold water cavity (101), the outer wall of the motor body (2) is uniformly connected with a heat dissipation fin (201), the outer wall of the heat dissipation fin (201) is fixedly connected with an annular slide rail (202), the inside of the annular slide rail (202) is slidably connected with an annular water pipe (203), one side of the annular water pipe (203) is fixedly connected with a gear ring (204), the gear end of the gear ring (204) is meshedly connected with a circular gear (205), the inner wall of the circular gear (205) is fixedly connected with a rotating shaft (206), the top of the mounting plate (1) is fixedly connected with a fixed plate (207), the outer wall of the rotating shaft (206) is rotatably connected in the fixed plate (207), the outer wall of the annular water pipe (203) is slidably connected in the cold water cavity (101), and the one side of the heat dissipation fin (201) is provided with an air cooling assembly.

2. The high-efficiency heat-dissipation permanent magnet motor of claim 1, wherein: One end of the rotating shaft (206) is fixedly connected with a first driven wheel (3), the outer wall of the first driven wheel (3) is provided with a first belt (301), one end of the first belt (301) is provided with a first driving wheel (302), the inner wall of the first driving wheel (302) is fixedly connected with a support shaft (303), and one end of the support shaft (303) is fixedly connected with the output end of the motor body (2).

3. The high efficient heat dissipation permanent magnet motor of claim 1, wherein: One side of the mounting plate (1) is fixedly connected with a scraper (4) near the cold water cavity (101), and the other side of the scraper (4) is attached to the outer wall of the annular water pipe (203).

4. The high efficient heat dissipation permanent magnet motor of claim 1, wherein: The air cooling assembly comprises a rear cover (5), one side of the rear cover (5) is fixedly connected with one side of the heat dissipation fin (201), the other side of the rear cover (5) is provided with a filter screen (501), the inside of the filter screen (501) is rotatably connected with a rotating shaft (502), and one end of the rotating shaft (502) is uniformly fixedly connected with a fan blade (503).

5. The high efficient heat dissipation permanent magnet motor of claim 1, wherein: The other end of the rotating shaft (206) is fixedly connected with a second driving wheel (6), the outer wall of the second driving wheel (6) is provided with a second belt (601), one end of the second belt (601) is provided with a second driven wheel (602), and the inner wall of the second driven wheel (602) is fixedly connected with the outer wall of the rotating shaft (502).

6. The high efficient heat dissipating permanent magnet motor of claim 4, wherein: The outer wall of the rotating shaft (502) is fixedly connected with a brush (603), and one side of the brush (603) is attached to one side of the filter screen (501).

7. The high efficient heat dissipating permanent magnet motor of claim 1, wherein: One side of the motor body (2) and the rear cover (5) is fixedly connected with a fixing frame (7), and the inside of the fixing frame (7) is symmetrically provided with a mounting hole.

8. The high efficient heat dissipating permanent magnet motor of claim 7, wherein: The mounting hole of the fixing frame (7) is threadedly connected with a bolt (701).

9. The high efficient heat dissipating permanent magnet motor of claim 1, wherein: One side of the annular water pipe (203) is fixedly connected with a connecting pipe (8), and the outer wall of the connecting pipe (8) is provided with a valve (801).

10. The high efficient heat dissipating permanent magnet motor of claim 1, wherein: One side of the mounting plate (1) is fixedly connected with a micro water pump (9), the output end of the micro water pump (9) is fixedly connected with a conveying pipe (901), and the input end of the micro water pump (9) is fixedly connected in the cold water cavity (101).

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