Air-cooled permanent magnet synchronous motor

Abstract

The invention relates to the technical field of motors, in particular to an air-cooled permanent magnet synchronous motor which comprises a machine shell, a side cover is movably installed on the right side of the machine shell, a plurality of through holes are formed in the side cover, a side shell is attached to the right side of the side cover, and a side plate is movably connected to the right side of the side shell. By pushing an inserting rod, the inserting rod drives a round block to compress a spring, meanwhile, the inserting rod is pulled out of an inserting hole, at the moment, the side plate and the side shell are in a movable state, the side plate can be directly taken down from the side shell, the fan on the side plate is also taken out from the interior of the side shell, and a worker can conveniently conduct overhaul, maintenance and other operation on the fan; and through the arrangement of the fan, the fan can accelerate air flow in the machine shell, so that internal air and external air are circulated, heat in the machine shell can be rapidly taken away, the internal heat dissipation effect is guaranteed, and the service life is further guaranteed.

Description

Technical Field

[0001] This invention relates to an electric motor, specifically an air-cooled permanent magnet synchronous motor. Background Technology

[0002] Permanent magnet synchronous motors use permanent magnets for excitation, which has unparalleled advantages over electrically excited motors, such as high efficiency, high power factor, large starting torque, and good power performance. However, they also have corresponding problems: the motor heats up during prolonged use, causing irreversible demagnetization of the magnets.

[0003] In order to improve internal heat dissipation, reduce heat accumulation inside the motor, and extend the life of the magnets, traditional permanent magnet synchronous motors usually need to be equipped with fans. However, when installing fans, they are generally fixed with bolts. After the fan has been working for a long time, if it is damaged, it is difficult to disassemble the fan because it is located inside the motor, which reduces the internal heat dissipation effect of the motor. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an air-cooled permanent magnet synchronous motor.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A wind-cooled permanent magnet synchronous motor includes a housing, a side cover movably mounted on the right side of the housing, the side cover having several through holes, a side shell fitting against the right side of the side cover, a side plate movably connected to the right side of the side shell, a fan mounted on the left side of the side plate, and an insertion mechanism provided between the side plate and the inner wall of the side shell, a number of heat dissipation holes being provided on the outer side of the housing, and a fixing ring being fixedly connected to the outer side of the housing, with a fixing mechanism provided between the fixing ring and the side shell.

[0007] As a preferred embodiment of the present invention, the insertion mechanism includes two arc-shaped blocks, which are respectively fixedly connected to the left side of the side plate near the top and bottom. Each of the two arc-shaped blocks has a insertion rod at its bottom. The side shell has insertion holes at its top and bottom, and the inner cavity of the side shell has round blocks near its top and bottom. The two insertion rods pass through the corresponding arc-shaped block, round block, and insertion hole at opposite ends, and are movably connected to the arc-shaped block. A spring is sleeved on the outside of the insertion rod, and the two ends of the spring are fixedly connected to the inner walls of the round block and the arc-shaped block, respectively.

[0008] As a preferred embodiment of the present invention, the fixing mechanism includes a plurality of connecting blocks, one side of which is fixedly connected to the outer wall of the side shell, and the other side of which is attached to the right side wall of the fixing ring. A plurality of threaded holes are provided on the outer wall of the housing, and bolts are threadedly connected to the connecting blocks, with one end of the bolts threadedly connected to the inner cavity of the corresponding threaded hole.

[0009] As a preferred embodiment of the present invention, the fixing ring is provided with a plurality of limiting holes, and a limiting rod is fixedly connected to the left side of each of the plurality of connecting blocks, with the left end of the limiting rod passing through the corresponding limiting hole.

[0010] As a preferred embodiment of the present invention, the number of the plurality of limiting rods and the plurality of limiting holes are all six, and the six limiting rods and limiting holes are evenly distributed in a ring.

[0011] As a preferred embodiment of the present invention, the inner wall of the housing is provided with an internal thread near the right side, and the outer side of the side cover is provided with an external thread, and the side cover is threadedly connected to the right side of the housing.

[0012] As a preferred embodiment of the present invention, the inner wall of the side shell is provided with an internal thread near the right side, and the outer side of the side plate is provided with an external thread, and the side plate is threadedly connected to the right side of the side shell.

[0013] In a preferred embodiment of the present invention, the insertion rod and the insertion hole are configured to match each other.

[0014] As a preferred embodiment of the present invention, a circular hole is provided on the left side of the housing.

[0015] This invention provides an air-cooled permanent magnet synchronous motor, which has the following advantages:

[0016] The system includes a connecting plate, a plug rod, a socket, a circular block, and a side plate. Pushing the plug rod causes it to compress the spring in the circular block, simultaneously pulling the plug rod out of the socket. At this point, the side plate is in a movable state with respect to the side shell, allowing it to be directly removed from the side shell. The fan on the side plate can then be easily removed from inside the side shell, enabling convenient inspection and maintenance by staff. The fan design accelerates airflow within the casing, facilitating air circulation between the internal and external air, quickly dissipating heat from the casing, ensuring effective heat dissipation, and further extending the lifespan of the machine.

[0017] In summary, the normal operation of the internal components of the housing enables the device to operate. The ventilation holes on the outer wall of the housing facilitate heat dissipation. During high-speed operation of the internal components, the fan is activated, blowing air through the ventilation holes into the housing, accelerating airflow and allowing the internal air to carry heat through the ventilation holes and circulate with the outside air, achieving efficient heat dissipation. If the fan malfunctions due to prolonged use, pressing the insertion rod compresses the circular block spring, simultaneously pulling the rod out of the insertion hole. At this point, the side plate and side shell are in a movable state. In this state, the side panel can be directly removed from the side housing. At this time, the fan on the side panel can also be removed from inside the side housing, allowing staff to easily inspect and repair the fan. After the repair is completed, the above operation can be repeated to reinstall the fan inside the side housing for subsequent work. When it is necessary to inspect the internal components of the housing later, the multiple bolts on the outside can be removed, so that the connecting block is in a movable state with the outer wall of the housing. Then, the side housing is moved to the right, so that the side housing moves the connecting block away from the housing. At this time, the side cover is exposed and can be removed from the housing, making it convenient for staff to inspect and repair the internal components later. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the external structure of the present invention from one angle;

[0020] Figure 2 This is a schematic diagram of the external structure of the present invention from another angle;

[0021] Figure 3 This is a schematic diagram of the external partial structure of the present invention from one angle;

[0022] Figure 4 This is a schematic diagram of the external partial structure of the present invention from another perspective;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the present invention;

[0024] Figure 6 This is a structural schematic diagram of the fan component of the present invention;

[0025] Figure 7 This is the present invention. Figure 5 Enlarged view of point A in the middle.

[0026] In the diagram: 1. Housing; 2. Round hole; 3. Fixing ring; 4. Connecting block; 5. Side shell; 6. Side plate; 7. Heat dissipation hole; 8. Fan; 9. Side cover; 10. Through hole; 11. Limiting hole; 12. Limiting rod; 13. Bolt; 14. Threaded hole; 15. Insertion hole; 16. Insertion rod; 17. Round block; 18. Spring; 19. Arc block. Detailed Implementation

[0027] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0028] Example: Figure 1-7 As shown, an air-cooled permanent magnet synchronous motor includes a housing 1. A side cover 9 is movably installed on the right side of the housing 1. The side cover 9 has several through holes 10. A side shell 5 is attached to the right side of the side cover 9. A side plate 6 is movably connected to the right side of the side shell 5. A fan 8 is installed on the left side of the side plate 6. An insertion mechanism is provided between the side plate 6 and the inner wall of the side shell 5. Several heat dissipation holes 7 are opened on the outer side of the housing 1. A fixing ring 3 is fixedly connected to the outer side of the housing 1. A fixing mechanism is provided between the fixing ring 3 and the side shell 5.

[0029] The insertion mechanism includes two arc-shaped blocks 19, which are fixedly connected to the left side of the side plate 6 near the top and bottom respectively. Each of the two arc-shaped blocks 19 has a plug rod 16 at its bottom. The side shell 5 has a plug hole 15 at its top and bottom. The inner cavity of the side shell 5 has a round block 17 near its top and bottom respectively. The two plug rods 16 pass through the corresponding arc-shaped block 19, round block 17 and plug hole 15 at opposite ends respectively, and are movably connected to the arc-shaped block 19. A spring 18 is sleeved on the outside of the plug rod 16. The two ends of the spring 18 are fixedly connected to the inner wall of the round block 17 and the arc-shaped block 19 respectively. The plug rod 16 and the plug hole 15 are matched.

[0030] In this embodiment, this setting enables the insertion and fixing operation between the side plate 6 and the side shell 5, and also allows the side plate 6 to be easily removed from the side shell 5, so that the fan 8 on the side plate 6 can be detached from the side shell 5 for maintenance.

[0031] The fixing mechanism includes several connecting blocks 4. One side of the connecting block 4 is fixedly connected to the outer wall of the side shell 5, and the other side of the connecting block 4 is attached to the right side wall of the fixing ring 3. Several threaded holes 14 are opened on the outer wall of the housing 1. Bolts 13 are threadedly connected to the connecting block 4. One end of the bolt 13 is threadedly connected to the inner cavity of the corresponding threaded hole 14.

[0032] In this embodiment, this setting allows the side shell 5 to be easily removed from the housing 1, making it easier to repair the internal components of the housing 1 later.

[0033] Among them, the fixed ring 3 is provided with several limiting holes 11, and several connecting blocks 4 are fixedly connected to the left side of the limiting rods 12. The left end of the limiting rods 12 passes through the corresponding limiting holes 11. The number of limiting rods 12 and limiting holes 11 is six, and the six limiting rods 12 and limiting holes 11 are evenly distributed in a ring.

[0034] In this embodiment, this setting can, on the one hand, limit the installation of the side shell 5, and on the other hand, prevent shaking during normal operation after installation.

[0035] Among them, the inner wall of the housing 1 is provided with an internal thread near the right side, and the outer side of the side cover 9 is provided with an external thread. The side cover 9 is threadedly connected to the right side of the housing 1.

[0036] In this embodiment, this setting allows the side cover 9 to be easily removed from the right side of the housing 1, enabling staff to easily inspect and repair the internal components of the housing 1.

[0037] Among them, the inner wall of the side shell 5 is provided with internal threads near the right side, and the outer side of the side plate 6 is provided with external threads. The side plate 6 is threadedly connected to the right side of the side shell 5.

[0038] In this embodiment, this configuration allows workers to easily remove the side plate 6 from the side shell 5, thereby facilitating the maintenance and repair of the fan 8 installed on the side plate 6.

[0039] Among them, a round hole 2 is provided on the left side of the casing 1;

[0040] In this embodiment, this arrangement allows the motor assembly inside the housing 1 to pass through the circular hole 2, extend to the outside, and connect with other devices.

[0041] Working principle: In use, it can first drive the internal components of the housing 1 normally to realize the operation of the equipment. Through the heat dissipation holes 7 on the outer wall of the housing 1, the internal heat dissipation operation of the housing 1 can be realized. When the internal components of the housing 1 are running at high speed, the fan 8 can be driven. The air blown out by the fan 8 can be made to enter the housing 1 through the through hole 10, which accelerates the gas flow inside the housing 1. This allows the internal gas to carry heat through the heat dissipation holes 7 and circulate with the outside air, realizing efficient heat dissipation operation. If the fan 8 is damaged due to prolonged operation, the plug rod 16 can be pressed, which causes the plug rod 16 to drive the round block 17 to compress the spring 18. At the same time, the plug rod 16 is pulled away from the plug hole 15. At this time, the side plate 6 and the side shell 5 are disconnected. When the side panel 6 is in an active state, it can be directly removed from the side shell 5. At this time, the fan 8 on the side panel 6 can also be removed from the inside of the side shell 5. The staff can easily perform inspection and maintenance on the fan 8. After the maintenance is completed, the above operation can be repeated to reinstall the fan 8 inside the side shell 5 for subsequent work. When it is necessary to inspect the internal components of the housing 1 later, the multiple bolts 13 on the outside can be removed, so that the connecting block 4 is in an active state with the outer wall of the housing 1. Then, the side shell 5 is moved to the right, so that the side shell 5 moves the connecting block 4 away from the housing 1. At this time, the side cover 9 is exposed and can be removed from the housing 1, which is convenient for the staff to inspect and maintain the internal components later.

[0042] Finally, it should be noted that in the description of this invention, the terms "vertical," "upper," "lower," "horizontal," 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 limitations on this invention.

[0043] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 wind-cooled permanent magnet synchronous motor, comprising a housing (1), characterized in that, A side cover (9) is movably installed on the right side of the housing (1). Several through holes (10) are provided on the side cover (9). A side shell (5) is attached to the right side of the side cover (9). A side plate (6) is movably connected to the right side of the side shell (5). A fan (8) is installed on the left side of the side plate (6). An insertion mechanism is provided between the side plate (6) and the inner wall of the side shell (5). Several heat dissipation holes (7) are provided on the outer side of the housing (1). A fixing ring (3) is fixedly connected to the outer side of the housing (1). A fixing mechanism is provided between the fixing ring (3) and the side shell (5).

2. The air-cooled permanent magnet synchronous motor according to claim 1, characterized in that, The insertion mechanism includes two arc-shaped blocks (19), which are fixedly connected to the left side of the side plate (6) near the top and bottom respectively. Each of the two arc-shaped blocks (19) has a plug rod (16) at the bottom. The side shell (5) has a plug hole (15) at the top and bottom respectively. The inner cavity of the side shell (5) has a round block (17) near the top and bottom respectively. The two plug rods (16) pass through the corresponding arc-shaped block (19), round block (17) and plug hole (15) respectively at opposite ends and are movably connected to the arc-shaped block (19). A spring (18) is sleeved on the outside of the plug rod (16). The two ends of the spring (18) are fixedly connected to the inner wall of the round block (17) and the arc-shaped block (19) respectively.

3. The air-cooled permanent magnet synchronous motor according to claim 1, characterized in that, The fixing mechanism includes several connecting blocks (4). One side of the connecting block (4) is fixedly connected to the outer wall of the side shell (5), and the other side of the connecting block (4) is attached to the right side wall of the fixing ring (3). Several threaded holes (14) are opened on the outer wall of the housing (1). Bolts (13) are threadedly connected to the connecting block (4), and one end of the bolt (13) is threadedly connected to the inner cavity of the corresponding threaded hole (14).

4. The air-cooled permanent magnet synchronous motor according to claim 3, characterized in that, The fixed ring (3) has several limiting holes (11), and several connecting blocks (4) are fixedly connected to the left side of each limiting rod (12), with the left end of the limiting rod (12) passing through the corresponding limiting hole (11).

5. A wind-cooled permanent magnet synchronous motor according to claim 4, characterized in that, The number of the limiting rods (12) and the limiting holes (11) are both six, and the six limiting rods (12) and the limiting holes (11) are evenly distributed in a ring.

6. The air-cooled permanent magnet synchronous motor according to claim 1, characterized in that, The inner wall of the housing (1) is provided with an internal thread near the right side, and the outer side of the side cover (9) is provided with an external thread. The side cover (9) is threadedly connected to the right side of the housing (1).

7. The air-cooled permanent magnet synchronous motor according to claim 1, characterized in that, The inner wall of the side shell (5) is provided with an internal thread near the right side, and the outer side of the side plate (6) is provided with an external thread. The side plate (6) is threadedly connected to the right side of the side shell (5).

8. A wind-cooled permanent magnet synchronous motor according to claim 2, characterized in that, The insertion rod (16) and the insertion hole (15) are matched.

9. A wind-cooled permanent magnet synchronous motor according to claim 1, characterized in that, A circular hole (2) is provided on the left side of the casing (1).

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