A self-heating and cooling permanent magnet motor

By employing a self-heating cooling design, the motor rotation drives the fan blades to dissipate heat, solving the problem of heat accumulation in permanent magnet motors, improving motor stability and ease of maintenance, and extending service life.

CN113746271BActive Publication Date: 2026-05-26JIANGSU AEROSPACE POWER ELECTRIC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU AEROSPACE POWER ELECTRIC
Filing Date
2021-08-26
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing permanent magnet motors generate a lot of heat during operation and cannot be cooled quickly, resulting in a shortened service life.

Method used

A self-heating and cooling permanent magnet motor was designed. Through the cooperation of the first round rod, the second round rod, the vertical rod, the gear and the fan blade inside the cover, the rotation of the motor drives the fan blade to rotate, thereby achieving rapid heat dissipation. At the same time, the cooperation of the locking rod, the locking block and the clamping bolt facilitates the quick separation of the cover from the main body, which is convenient for maintenance. The cooperation of the ring body, the brush and the handle enables the cleaning of the mesh plate and ensures air circulation.

Benefits of technology

This technology enables rapid heat dissipation from the permanent magnet motor, improves the motor's operational stability, facilitates maintenance and cleaning, and extends the motor's service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a self-heating and cooling permanent magnet motor, comprising a body, an output shaft mounted on the outer wall of the body, and a cover with a clearance fit between the inner wall of the cover and the outer wall of the body. The inner wall of the cover is provided with a first round rod, and the inner walls of two gears are riveted to the outer walls of two second round rods respectively. The outer walls of the two gears are provided with gear rings, and the outer walls of the gear rings are welded to the inner wall of the cover. The top and bottom of the inner walls of the gear rings mesh with the outer walls of the two gears respectively. This self-heating and cooling permanent magnet motor allows the output shaft to rotate when the body is connected to an external power source, through the clearance fit between the groove block and the block, enabling the output shaft to drive the first round rod and the first fan blade to rotate. When the first round rod is in motion, it can also drive the vertical rod and the second round rod to rotate. After reinstallation, the output shaft can still stably drive the first round rod through the engagement of the block and the groove block.
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Description

Technical Field

[0001] This invention relates to the field of motor technology, specifically to a self-heating and cooling permanent magnet motor. Background Technology

[0002] A permanent magnet motor consists of components such as a stator, a rotor, and end covers. The stator is basically the same as that of an ordinary induction motor, but it adopts a laminated structure to reduce iron loss during motor operation. The rotor can be made solid or laminated. The armature winding can be a concentrated full-pitch winding, a distributed short-pitch winding, or an unconventional winding.

[0003] Although existing permanent magnet motors can drive equipment, they generate a lot of heat when working and cannot be cooled quickly. The heat buildup over a long period of time will shorten the lifespan of the permanent magnet motor. Summary of the Invention

[0004] The purpose of this invention is to provide a self-heating cooling permanent magnet motor to solve the problem mentioned in the background art that when a permanent magnet motor is working, it emits a lot of heat and cannot be cooled quickly. The heat accumulation over a long period of time will shorten the service life of the permanent magnet motor.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a self-heating and cooling permanent magnet motor, comprising a body, an output shaft mounted on the outer wall of the body, and a heat dissipation mechanism provided on the left side of the body;

[0006] The heat dissipation mechanism includes a cover, a first round rod, a first fan blade, a vertical rod, a second round rod, a second fan blade, a gear, and a gear ring;

[0007] The inner wall of the cover is fitted with the outer wall of the main body with a clearance. The inner wall of the cover is provided with a first round rod, and the outer wall of the first round rod is provided with a first fan blade. The inner wall of the first fan blade is sleeved with the outer wall of the first round rod. The top and bottom of the outer wall of the first round rod are provided with vertical rods. One end of the outer wall of the two vertical rods is welded to the top and bottom of the outer wall of the first round rod, respectively. The inner wall of each of the two vertical rods is provided with a second round rod. The two second round rods are rotatably connected to the two vertical rods through bearings. One end of the outer wall of each of the two second round rods is provided with a second fan blade. One end of the outer wall of each of the two second fan blades is fixedly connected to one end of the outer wall of each of the two second round rods. The other end of the outer wall of each of the two second round rods is provided with a gear. The inner wall of each of the two gears is riveted to the outer wall of each of the two second round rods. The outer wall of each gear is provided with a gear ring. The outer wall of the gear ring is welded to the inner wall of the cover. The top and bottom of the inner wall of the gear ring are meshed with the outer walls of the two gears, respectively.

[0008] Preferably, one end of the outer wall of the body is threadedly connected to the inner end cover by multiple bolts, the inner wall of the inner end cover is provided with a first mesh plate, the outer wall of the first mesh plate is welded to the inner wall of the inner end cover, and the first mesh plate is rotatably connected to the output shaft through a bearing.

[0009] Preferably, a second mesh plate is welded to the inner wall of the cover, and the second mesh plate is rotatably connected to the first round rod through a bearing.

[0010] Preferably, two blocks are welded to one end of the outer wall of the first fan blade. The outer walls of the two blocks are provided with grooves. The inner walls of the two grooves are respectively clearance-fitted with the outer walls of the two blocks. The two grooves are respectively welded to the top and bottom ends of the outer wall of the output shaft.

[0011] Preferably, two supports are welded to the bottom of the main body, and two openings are machined on one end of the outer wall of each of the two supports.

[0012] Preferably, the top and bottom of the outer wall of the cover are provided with fixing mechanisms;

[0013] The fixing mechanism includes a locking rod, a clamping bolt, and a locking block;

[0014] The two clamping rods are respectively located at the top and bottom of the outer wall of the cover. The two clamping rods are rotatably connected to the top and bottom of the outer wall of the cover via connecting shafts. Each of the two clamping rods has a clamping groove at one end of its outer wall. The inner walls of the two clamping grooves are respectively engaged with one end of the outer wall of the two clamping rods. The two clamping grooves are respectively welded to the top and bottom of the outer wall of the main body. Each of the two clamping rods has a tightening bolt on its inner wall. The outer walls of the two tightening bolts are respectively threaded to the inner walls of the two clamping rods. One end of the outer wall of the two tightening bolts is respectively tightly fitted against the top and bottom of the outer wall of the cover.

[0015] Preferably, the outer wall of the clamping bolt is machined with a grinding texture.

[0016] Preferably, the outer wall of the cover is provided with a cleaning mechanism;

[0017] The cleaning mechanism includes a ring, a brush, and a handle;

[0018] The ring is located on the outer wall of the cover and is rotatably connected to the outer wall of the cover via a bearing. The inner wall of the ring is provided with a brush. The two ends of the outer wall of the brush are welded to the two ends of the inner wall of the ring, respectively. One end of the outer wall of the brush is attached to one end of the outer wall of the second mesh plate, and a handle is welded to the other end of the outer wall of the brush.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: This self-heating and cooling permanent magnet motor, through the cooperation between the first round rod, the second round rod, the vertical rod, the gear, and the first fan blade, enables the output shaft to rotate when the main body is connected to an external power source and drives the output shaft to rotate through the gap cooperation between the groove block and the block. The first round rod can drive the vertical rod and the second round rod to rotate. While the second round rod follows the rotation of the vertical rod, it is connected through the meshing of the gear and the gear ring, thereby driving the second fan blade to rotate while following the rotation of the vertical rod and the first round rod. Through the rotation of the two second fan blades and the first fan blade, the heat generated during the operation of the main body is quickly dissipated, improving the stability of the main body during operation.

[0020] The cooperation between the locking rod, the locking block, and the clamping bolt allows the clamping bolt to be rotated, causing it to release its tight fit against the cover. This, in turn, causes the locking rod and the locking block to disengage, allowing the cover to be quickly separated from the main body. This facilitates the maintenance and inspection of the first fan blade and other components inside the cover, making the process more convenient.

[0021] Through the cooperation between the ring, brush, and handle, rotating the handle causes the brush and ring to rotate on the outer wall of the cover, thereby allowing the brush to clean the second mesh plate, preventing the second mesh plate from becoming clogged, thus ensuring airflow between the second and first mesh plates and reducing heat dissipation from the main body.

[0022] Through the cooperation between the groove, the block, and the output shaft, the cover can drive the first round rod and the first fan blade to separate from the main body by the docking of the block and the groove. After reinstallation, the output shaft can still drive the first round rod stably by docking the block and the groove. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the connection relationship in this invention;

[0024] Figure 2 for Figure 1 A cross-sectional structural diagram of the inner end cap and ring body, etc.

[0025] Figure 3 for Figure 2 A structural schematic diagram of the first round rod, block, and groove block, etc.

[0026] Figure 4 for Figure 2 A structural diagram of the central vertical rod, the second circular rod, and the second fan blade, etc.

[0027] Figure 5 for Figure 2 Structural diagram of the main body and locking rod, etc.;

[0028] Figure 6 for Figure 2 A schematic diagram of the structure of the second mesh plate, ring body, and brush.

[0029] In the diagram: 1. Main body, 2. Output shaft, 3. Inner end cover, 4. Bolt, 5. First mesh plate, 6. Groove block, 7. Heat dissipation mechanism, 701. Cover, 702. First round rod, 703. First fan blade, 704. Vertical rod, 705. Second round rod, 706. Second fan blade, 707. Gear, 708. Gear ring, 8. Fixing mechanism, 801. Locking rod, 802. Tightening bolt, 803. Locking slot block, 9. Cleaning mechanism, 901. Ring body, 902. Brush, 903. Handle, 10. Block, 11. Second mesh plate, 12. Bracket, 13. Through port. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below 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.

[0031] Please see Figure 1-6This invention provides a technical solution: a self-heating and cooling permanent magnet motor, including a body 1. The model of the body 1 is selected according to actual working requirements. An output shaft 2 is installed on the outer wall of the body 1. A heat dissipation mechanism 7 is provided on the left side of the body 1. The heat dissipation mechanism 7 includes a cover 701, a first round rod 702, a first fan blade 703, a vertical rod 704, a second round rod 705, a second fan blade 706, a gear 707, and a gear ring 708. The inner wall of the cover 701 is clearance-fitted with the outer wall of the body 1. The inner wall of the cover 701 is provided with the first round rod 702, and the outer wall of the first round rod 702 is provided with the first fan blade 703, so that the first round rod 702 can drive the first fan blade 703 to rotate. The inner wall of the first fan blade 703 is sleeved with the outer wall of the first round rod 702. Together, the first round rod 702 has vertical rods 704 at both the top and bottom of its outer wall. One end of the outer wall of each vertical rod 704 is welded to the top and bottom of the outer wall of the first round rod 702, respectively, allowing the first round rod 702 to drive the two vertical rods 704 to rotate. The inner wall of each of the two vertical rods 704 has a second round rod 705, allowing the second round rod 705 to rotate at the vertical rod 704. The two second round rods 705 are rotatably connected to the two vertical rods 704 via bearings. One end of the outer wall of each of the two second round rods 705 has a second fan blade 706, allowing the second round rod 705 to drive the second fan blade 706 to rotate. One end of the outer wall of each second fan blade 706 is fixedly connected to one end of the outer wall of each of the two second round rods 705. Gears 707 are provided at the other end of the outer wall of each of the two gears 705. The inner walls of the two gears 707 are riveted to the outer walls of the two second round rods 705 respectively. Gear rings 708 are provided on the outer walls of the two gears 707. The outer walls of the gear rings 708 are welded to the inner walls of the cover 701. The top and bottom of the inner walls of the gear rings 708 are meshed with the outer walls of the two gears 707 respectively. One end of the outer wall of the main body 1 is threadedly connected to the inner end cover 3 by multiple bolts 4. The inner wall of the inner end cover 3 is provided with a first mesh plate 5. The material, aperture and mesh count of the first mesh plate 5 are selected according to the actual working requirements. The outer wall of the first mesh plate 5 is welded to the inner wall of the inner end cover 3. The first mesh plate 5 is rotatably connected to the output shaft 2 through a bearing. A second mesh plate 11 is welded to the inner wall of the cover 701. The material, aperture and mesh size of the second mesh plate 11 are selected according to actual working requirements. The first mesh plate 5 and the second mesh plate 11 can guide the hot air inside the body 1. The second mesh plate 11 is rotatably connected to the first round rod 702 through a bearing. Two blocks 10 are welded to one end of the outer wall of the first fan blade 703. The outer walls of the two blocks 10 are provided with groove blocks 6. The inner walls of the two groove blocks 6 are respectively clearance-fitted with the outer walls of the two blocks 10, so that the output shaft 2 can drive the first round rod 702 to rotate through the docking of the groove blocks 6 and the blocks 10. The two groove blocks 6 are respectively welded to the top and bottom ends of the outer wall of the output shaft 2. Two brackets 12 are welded to the bottom of the body 1. Two through holes 13 are processed on one end of the outer wall of the two brackets 12.

[0032] Through the cooperation between the first round rod, the second round rod, the vertical rod, the gear, and the first fan blade, when the main body is connected to an external power source and drives the output shaft to rotate, the gap between the groove block and the block allows the output shaft to drive the first round rod and the first fan blade to rotate. The first round rod can drive the vertical rod and the second round rod to rotate. While the second round rod follows the rotation of the vertical rod, it is connected through the meshing of the gear and the gear ring. Thus, while following the rotation of the vertical rod and the first round rod, it drives the second fan blade to rotate. Through the rotation of the two second fan blades and the first fan blade, the heat generated during the operation of the main body is quickly dissipated, improving the stability of the main body's operation.

[0033] Through the cooperation between the groove, the block, and the output shaft, the cover can drive the first round rod and the first fan blade to separate from the main body by the docking of the block and the groove. After reinstallation, the output shaft can still drive the first round rod stably by docking the block and the groove.

[0034] The outer wall of the cover 701 is equipped with fixing mechanisms 8 at both the top and bottom. Each fixing mechanism 8 includes a locking rod 801, a clamping bolt 802, and a locking block 803. Two locking rods 801 are respectively located at the top and bottom of the outer wall of the cover 701, and are rotatably connected to the top and bottom of the outer wall of the cover 701 via connecting shafts, allowing the locking rods 801 to rotate within the cover 701. Each locking rod 801 has a locking block 803 at one end of its outer wall, and the inner walls of the two locking blocks 803 engage with one end of the outer wall of the two locking rods 801. This engagement between the locking blocks 803 and the locking rods 801 secures the cover 701. The two slot blocks 803 are fixedly connected to the main body 1. They are welded to the top and bottom of the outer wall of the main body 1 respectively. The inner walls of the two locking rods 801 are provided with locking bolts 802. The locking bolts 802 are used to limit the locking rods 801 so that the locking rods 801 and the slot blocks 803 are stably locked. The outer walls of the two locking bolts 802 are threaded to the inner walls of the two locking rods 801 respectively. One end of the outer wall of the two locking bolts 802 is tightly fitted to the top and bottom of the outer wall of the cover 701 respectively. The outer wall of the locking bolts 802 is machined with a grinding pattern to increase the contact friction between the locking bolts 802 and the hand.

[0035] The cooperation between the locking rod, the locking block, and the clamping bolt allows the clamping bolt to be rotated, causing it to release its tight fit against the cover. This, in turn, causes the locking rod and the locking block to disengage, allowing the cover to be quickly separated from the main body. This facilitates the maintenance and inspection of the first fan blade and other components inside the cover, making the process more convenient.

[0036] The outer wall of the cover 701 is provided with a cleaning mechanism 9, which includes a ring 901, a brush 902 and a handle 903. The ring 901 is located on the outer wall of the cover 701 and is rotatably connected to the outer wall of the cover 701 through a bearing. The inner wall of the ring 901 is provided with a brush 902, so that the ring 901 can drive the brush 902 to rotate. The two ends of the outer wall of the brush 902 are welded to the two ends of the inner wall of the ring 901 respectively. One end of the outer wall of the brush 902 is attached to one end of the outer wall of the second mesh plate 11. The other end of the outer wall of the brush 902 is welded with a handle 903, which is used to drive the brush 902 and the ring 901 to rotate.

[0037] When using this self-heating and cooling permanent magnet motor, when the main body 1 is connected to an external power source and drives the output shaft 2 to rotate, the output shaft 2 can drive the first round rod 702 and the first fan blade 703 to rotate through the gap fit between the groove block 6 and the block 10. The first round rod 702 can drive the vertical rod 704 and the second round rod 705 to rotate. While the second round rod 705 rotates with the vertical rod 704, it is connected by the meshing of the gear 707 and the gear ring 708. Thus, while rotating with the vertical rod 704 and the first round rod 702, it drives the second fan blade 706 to rotate. Through the rotation of the two second fan blades 706 and the first fan blade 703, the heat generated by the main body 1 during operation is quickly dissipated. The device disperses and improves the stability of the main body 1. It can also rotate the clamping bolt 802, so that the clamping bolt 802 can be released from the tight fit of the cover 701. This can then drive the locking rod 801 and the locking block 803 to be released from the engagement, so that the cover 701 can be quickly separated from the main body 1. This makes it easier to maintain and inspect the first fan blade 703 and other parts inside the cover 701. The handle 903 can be rotated, so that the handle 903 can drive the brush 902 and the ring 9010 to rotate on the outer wall of the cover 701. This allows the brush 903 to clean the second mesh plate 11, preventing the second mesh plate 11 from being blocked. This would prevent the second mesh plate 11 from being blocked, thus preventing air circulation between the second mesh plate 11 and the first mesh plate 5 and reducing the heat dissipation of the main body 1.

[0038] In the description of this invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0039] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-heating and cooling permanent magnet motor, comprising a body (1), wherein an output shaft (2) is mounted on the outer wall of the body (1), characterized in that: The body (1) is provided with a heat dissipation mechanism (7) on the left side. The heat dissipation mechanism (7) includes a cover (701), a first round rod (702), a first fan blade (703), a vertical rod (704), a second round rod (705), a second fan blade (706), a gear (707), and a gear ring (708). The inner wall of the cover (701) is clearance-fitted with the outer wall of the body (1). The inner wall of the cover (701) is provided with a first round rod (702). The outer wall of the first round rod (702) is provided with a first fan blade (703). The inner wall of the first fan blade (703) is sleeved with the outer wall of the first round rod (702). The top and bottom of the outer wall of the first round rod (702) are provided with vertical rods (704). One end of the outer wall of the two vertical rods (704) is welded to the top and bottom of the outer wall of the first round rod (702) respectively. The inner wall of the two vertical rods (704) is provided with a second round rod (705). The two second round rods (705) are rotatably connected to the two vertical rods (704) respectively through bearings. 05) Each of the two outer walls is provided with a second fan blade (706). The outer walls of the two second fan blades (706) are respectively fixed to the outer walls of the two second round rods (705). The other ends of the outer walls of the two second round rods (705) are provided with gears (707). The inner walls of the two gears (707) are respectively riveted to the outer walls of the two second round rods (705). The outer walls of the two gears (707) are provided with gear rings (708). The outer walls of the gear rings (708) are welded to the inner walls of the cover (701). The top and bottom of the inner walls of the gear rings (708) are respectively meshed with the outer walls of the two gears (707). The top and bottom of the outer walls of the cover (701) are provided with fixing mechanisms (8). The fixing mechanism (8) includes a locking rod (801), a clamping bolt (802), and a locking block (803); Two clamping rods (801) are respectively located at the top and bottom of the outer wall of the cover (701). The two clamping rods (801) are rotatably connected to the top and bottom of the outer wall of the cover (701) through connecting shafts. Each of the two clamping rods (801) has a clamping block (803) at one end of its outer wall. The inner walls of the two clamping blocks (803) are respectively clamped to one end of the outer wall of the two clamping rods (801). The two clamping blocks (803) are respectively welded to the top and bottom of the outer wall of the main body (1). Each of the two clamping rods (801) has a clamping bolt (802) on its inner wall. The outer walls of the two clamping bolts (802) are respectively threaded to the inner walls of the two clamping rods (801). One end of the outer wall of the two clamping bolts (802) is respectively abutted against the top and bottom of the outer wall of the cover (701). The outer wall of the cover (701) is provided with a cleaning mechanism (9). The cleaning mechanism (9) includes a ring (901), a brush (902), and a handle (903). The ring (901) is located on the outer wall of the cover (701). The ring (901) is rotatably connected to the outer wall of the cover (701) through a bearing. The inner wall of the ring (901) is provided with a brush (902). The two ends of the outer wall of the brush (902) are welded to the two ends of the inner wall of the ring (901) respectively. One end of the outer wall of the brush (902) is attached to one end of the outer wall of the second mesh plate (11). The other end of the outer wall of the brush (902) is welded with a handle (903).

2. The self-heating cooling permanent magnet motor according to claim 1, characterized in that: One end of the outer wall of the main body (1) is threadedly connected to the inner end cover (3) by multiple bolts (4). The inner wall of the inner end cover (3) is provided with a first mesh plate (5). The outer wall of the first mesh plate (5) is welded to the inner wall of the inner end cover (3). The first mesh plate (5) is rotatably connected to the output shaft (2) through a bearing.

3. The self-heating and cooling permanent magnet motor according to claim 1, characterized in that: The inner wall of the cover (701) is welded with a second mesh plate (11), which is rotatably connected to the first round rod (702) via a bearing.

4. A self-heating and cooling permanent magnet motor according to claim 1, characterized in that: Two blocks (10) are welded to one end of the outer wall of the first fan blade (703). The outer walls of the two blocks (10) are provided with groove blocks (6). The inner walls of the two groove blocks (6) are respectively fitted with the outer walls of the two blocks (10) with clearance. The two groove blocks (6) are respectively welded to the top and bottom ends of the outer wall of the output shaft (2).

5. A self-heating and cooling permanent magnet motor according to claim 1, characterized in that: Two supports (12) are welded to the bottom of the body (1), and two openings (13) are processed on one end of the outer wall of each of the two supports (12).

6. A self-heating and cooling permanent magnet motor according to claim 1, characterized in that: The outer wall of the clamping bolt (802) is machined with a grinding pattern.