An electromagnetic interference-resistant synchronous motor with built-in control device

Abstract

This invention discloses an electromagnetic interference-resistant synchronous motor with a built-in control device, comprising a motor body, an annular sliding sleeve rotatably mounted on the motor body's housing; the housing also includes a drive mechanism, a heat dissipation window, and an arc-shaped plate; a cover plate rotatably mounted on the housing to shield the heat dissipation window; when the annular sliding sleeve rotates, it drives the cover plate to move; the movement of the cover plate opens the heat dissipation window and simultaneously lifts the arc-shaped plate to buffer the impact on the motor body when it is hit. Initially, the cover plate blocks the heat dissipation window, preventing dust or moisture from entering the motor body through it. During operation, the drive mechanism drives the annular sliding sleeve to rotate, causing the cover plate to rotate around a second shaft, thereby opening the heat dissipation window and improving heat dissipation efficiency. When the heat dissipation window is open, the cover plate lifts the arc-shaped plate; due to the action of the first and second torsion springs, external impacts on the motor can be buffered, allowing the motor to continue operating normally and smoothly even when subjected to external impacts.

Description

Technical Field

[0001] This invention belongs to the field of electric motor technology and relates to an electromagnetic interference-resistant synchronous electric motor with a built-in control device. Background Technology

[0002] Electric motors generate a significant amount of heat during operation. If this heat cannot be dissipated in time, it will affect the motor's normal operation and may even damage it. Installing ventilation windows on the motor housing can achieve good heat dissipation. However, moisture or dust can still enter the motor through these windows, affecting its normal operation and damaging internal components.

[0003] If an electric motor is subjected to an external impact while it is working, the sudden impact will affect the smoothness of the motor's operation and may even damage the motor.

[0004] To address the aforementioned problems, this invention proposes an electromagnetic interference-resistant synchronous motor with a built-in control device. Summary of the Invention

[0005] To address the problems existing in the background art, the present invention proposes an electromagnetic interference-resistant synchronous motor with a built-in control device.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: including...

[0007] The motor body has an annular sliding sleeve rotatably mounted on its housing; the housing also has a drive mechanism, a heat dissipation window, and an arc-shaped plate.

[0008] The annular sliding sleeve has a spiral groove; the driving mechanism drives the annular sliding sleeve to rotate by acting on the spiral groove.

[0009] The arc-shaped plate is mounted on the housing via a connecting rod assembly;

[0010] A cover plate is rotatably mounted on the housing to shield the heat dissipation window; the cover plate is connected to an annular sliding sleeve via a connector;

[0011] When the annular sleeve rotates, it drives the cover plate to move; the movement of the cover plate opens the heat dissipation window and simultaneously lifts the arc-shaped plate to buffer the impact when the motor body is hit.

[0012] Furthermore, the annular sliding sleeve is provided with an arc-shaped window adapted to the heat dissipation window; the arc-shaped window cooperates with the heat dissipation window.

[0013] Furthermore, the drive mechanism includes an electric telescopic rod, a second spring, a T-shaped slider, and a slider;

[0014] The housing is provided with a second T-shaped groove that slides with the T-shaped slider; a fixing block is fixedly provided at one end of the second T-shaped groove;

[0015] One end of the second spring is connected to the fixed block; the other end of the second spring is connected to the base of the electric telescopic rod.

[0016] The electric telescopic rod is slidably mounted on the second T-shaped slide groove via a T-shaped slider;

[0017] The slider is mounted on the push rod of the electric telescopic rod; the slider is slidably engaged with the spiral groove.

[0018] Furthermore, the connector includes a first rotating shaft and a first connecting rod;

[0019] The first rotating shaft is fixed to the side wall of the arc-shaped window;

[0020] One end of the first connecting rod is rotatably connected to the first rotating shaft; the other end of the first connecting rod is rotatably connected to the cover plate.

[0021] Furthermore, a PLC is installed on the housing; a temperature sensor is installed at the heat dissipation window; the PLC is electrically connected to the temperature sensor, the electric telescopic rod, and the motor body respectively.

[0022] Furthermore, the connecting rod assembly includes two sets of connecting rods; each set of connecting rods includes two second connecting rods, and the two second connecting rods in each set form a parallelogram with the arc plate and the housing;

[0023] One end of the second connecting rod is hinged to the housing; the other end of the second connecting rod is hinged to the arc-shaped plate.

[0024] A first torsion spring is provided between the second connecting rod and the housing; a second torsion spring is provided between the second connecting rod and the arc-shaped plate.

[0025] Furthermore, the motor body is mounted on a shock-absorbing mounting base; the shock-absorbing mounting base is used to buffer the vibration of the motor body during operation.

[0026] Furthermore, the shock-absorbing mounting base includes a fixing plate, a base plate, and an elastic element;

[0027] The elastic element is located between the fixed plate and the base plate;

[0028] The motor body is fixedly mounted on the mounting plate.

[0029] Furthermore, the elastic element includes a first spring and a telescopic rod, the telescopic rod being disposed between the fixed plate and the base plate, and the first spring being sleeved on the telescopic rod.

[0030] Furthermore, the housing is equipped with an electromagnetic interference filter; the electromagnetic interference filter is electrically connected to the PLC.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. In the initial state, the cover plate blocks the heat dissipation window to prevent dust or moisture from entering the motor body through the heat dissipation window.

[0033] 2. During operation, the drive mechanism drives the annular sliding sleeve to rotate, causing the cover plate to rotate around the second rotating shaft, thereby opening the heat dissipation window and improving heat dissipation efficiency.

[0034] 3. When the heat dissipation window is opened, the cover plate lifts the arc-shaped plate. Due to the action of the first and second torsion springs, the impact of the outside world on the motor can be buffered, so that the motor can still work normally and run smoothly when subjected to external impact.

[0035] 4. The anti-vibration mounting base further buffers the vibration of the motor body during operation, improving the stability of the motor body operation. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the first orientation structure of the present invention;

[0037] Figure 2 This is a schematic diagram of the second orientation structure of the present invention;

[0038] Figure 3 This is a side view of the front cover in this invention;

[0039] Figure 4 This is a schematic diagram of the second T-shaped groove structure in this invention;

[0040] Figure 5 This is the present invention. Figure 5 Enlarged view of section A in the middle;

[0041] Figure 6 This is a schematic diagram of the internal structure of the motor body in this invention.

[0042] Figure 7 This is a schematic diagram of the arc-shaped window structure in this invention;

[0043] Figure 8 This is a schematic diagram of the cover plate in this invention;

[0044] Figure 9 In this invention Figure 8 Enlarged view of part B;

[0045] Figure 10 This is a schematic diagram of the annular sliding sleeve in this invention;

[0046] Figure 11This is a schematic diagram of the drive mechanism in this invention;

[0047] Figure 12 This is a schematic diagram of the initial state of the arc-shaped plate in this invention;

[0048] Figure 13 This is a schematic diagram of the working state of the arc-shaped plate in this invention;

[0049] Figure 14 This is a schematic diagram of the initial state of the cover plate in this invention;

[0050] Figure 15 This is a schematic diagram of the working state of the cover plate in this invention.

[0051] In the diagram: 1. Motor body; 2. Front cover; 3. Motor shaft; 4. Housing; 5. Connecting piece; 6. Base plate; 7. First spring; 8. Telescopic rod; 9. Fixing plate; 10. Base; 11. Annular sliding sleeve; 12. Fan cover; 13. Arc plate; 14. Drive mechanism; 15. PLC; 16. Electromagnetic interference filter; 17. Fixing frame; 18. Heat dissipation mesh; 19. Second T-shaped slide rail; 20. Heat dissipation window; 21. Hole; 22. Annular groove; 23. Temperature sensor 24. Fixing block; 25. First bearing; 26. Rotor winding; 27. Stator winding; 28. Rear end cover; 29. ​​Cooling fan; 30. Dustproof net; 31. Spiral groove; 32. Arc window; 33. First connecting rod; 34. Cover plate; 35. Connecting block; 36. First rotating shaft; 37. Guide bar; 38. Second spring; 39. Electric telescopic rod; 40. Slider; 41. T-shaped slider; 42. Second connecting rod; 43. Hinge seat; 44. Second rotating shaft. Detailed Implementation

[0052] 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.

[0053] like Figures 1-15As shown, the technical solution adopted by the present invention is as follows: A synchronous motor with built-in control device and electromagnetic interference protection includes a motor body 1, which has a housing 4. The housing 4 contains a rotor winding 26, a stator winding 27, and a motor shaft 3. One end of the housing 4 has a front cover 2, and the other end has a rear cover 28. A fan shroud 12 is installed at the rear cover 28, and a heat dissipation mesh 18 is provided at the end of the fan shroud 12 away from the motor body 1. One end of the motor shaft 3 passes through the front cover 2 and is rotatably connected to the front cover 2 via a first bearing 25. The other end of the motor shaft 3 is rotatably connected to the rear cover 28 via a second bearing and extends through the rear cover 28 into the fan shroud 12. A cooling fan 29 is installed on the portion of the motor shaft 3 extending into the fan shroud 12.

[0054] When the motor body 1 is working, the motor shaft 3 drives the cooling fan 29 to rotate. The cooling fan 29 can accelerate the airflow inside the fan cover 12 and improve the heat dissipation efficiency.

[0055] The housing 4 is equipped with an annular sliding sleeve 11, a drive mechanism 14, a heat dissipation window 20, and an arc plate 13.

[0056] Two parallel annular grooves 22 are formed on one end of the housing 4 near the fan cover 12. Four holes 21 are formed on the housing 4 between the two annular grooves 22, and these four holes 21 are evenly and symmetrically distributed on the circumference of the housing 4. Each hole 21 has a heat dissipation window 20. Each heat dissipation window 20 is equipped with a dustproof mesh 30. The heat dissipation windows 20 are used to quickly dissipate heat from the motor body 1.

[0057] A cover plate 34 is provided at the heat dissipation window 20 to cover the heat dissipation window 20. A second rotating shaft 44 is fixed on the side wall of the hole 21, and the cover plate 34 is rotatably mounted on the housing 4 via the second rotating shaft 44.

[0058] The annular sliding sleeve 11 has guide bars 37 on both sides that are adapted to the annular groove 22. The annular sliding sleeve 11 is rotatably mounted in the annular groove 22 via the guide bars 37. The annular sliding sleeve 11 rotates under the drive of the drive mechanism 14. The annular sliding sleeve 11 has arc-shaped windows 32 adapted to the heat dissipation windows 20. There are four arc-shaped windows 32, each corresponding to a heat dissipation window 20. The annular sliding sleeve 11 has spiral grooves 31 between adjacent arc-shaped windows 32.

[0059] The annular sliding sleeve 11 is connected to the cover plate 34 via a connector 5. The connector 5 includes a first rotating shaft 36 and a first connecting rod 33.

[0060] There are two first rotating shafts 36, which are fixedly installed on both sides of the arc-shaped window 32. There are two first connecting rods 33. A connecting block 35 is fixedly installed on the cover plate 34. One end of each of the two first connecting rods 33 is rotatably connected to the corresponding first rotating shaft 36, and the other end of each of the two first connecting rods 33 is rotatably connected to both sides of the connecting block 35.

[0061] Initially, the cover plate 34 blocks the heat dissipation window 20. When the annular sleeve 11 rotates, it drives the cover plate 34 to rotate around the second shaft 44 via the first connecting rod 33, gradually increasing the distance between the end of the cover plate 34 away from the second shaft 44 and the heat dissipation window 20, thus gradually opening the heat dissipation window 20 for better heat dissipation. When the motor body 1 stops working and it is necessary to block the heat dissipation window 20, the annular sleeve 11 rotates in the opposite direction, driving the cover plate 34 to rotate around the second shaft 44 via the first connecting rod 33, gradually bringing the end of the cover plate 34 away from the second shaft 44 closer to the heat dissipation window 20 until the cover plate 34 blocks the heat dissipation window 20, preventing moisture or dust from entering the motor body 1 through the heat dissipation window 20.

[0062] The drive mechanism 14 includes four sets of drive components, which are evenly and symmetrically distributed on the circumferential surface of the housing 4. Four second T-shaped grooves 19 are formed on the circumferential surface of the housing 4. The four sets of drive components slide in contact with their corresponding second T-shaped grooves 19. Each set of drive components is connected to a corresponding spiral groove 31. The four sets of drive components operate synchronously.

[0063] The drive assembly includes an electric telescopic rod 39, a second spring 38, a slider 40, and a T-shaped slider 41.

[0064] The base of the electric telescopic rod 39 is provided with a T-shaped slider 41. The push rod of the electric telescopic rod 39 is fixed with a slider 40 that is slidably connected to the spiral groove 31.

[0065] The electric telescopic rod 39 is slidably connected to the second T-shaped slide groove 19 via the T-shaped slider 41.

[0066] A fixing block 24 is fixedly installed at one end of the second T-shaped slide 19. One end of the second spring 38 is fixedly connected to the fixing block 24, and the other end of the second spring 38 is connected to the base of the electric telescopic rod 39.

[0067] Initially, the electric telescopic rod 39 is in a retracted state, the slider 40 is in the spiral groove 31 near the fixed block 24, and the second spring 38 is in its initial state. When the electric telescopic rod 39 extends, the push rod of the electric telescopic rod 39 drives the slider 40 to slide along the spiral groove 31, thereby driving the annular sleeve 11 to rotate. The annular sleeve 11 drives the cover plate 34 to rotate through the first connecting rod 33, thereby opening the heat dissipation window 20. Initially, the thrust of the electric telescopic rod 39 is greater than the elastic force of the second spring 38, and the electric telescopic rod 39 will slide towards the fixed block 24, thereby compressing the second spring 38 until the elastic potential energy of the second spring 38 is equal to the thrust of the electric telescopic rod 39, but the second spring 38 is not compressed to its limit. When the slider 40 slides to the end of the spiral groove 31 near the rear end cover 28, the electric telescopic rod 39 stops working, and the second spring 38 exerts a thrust on the electric telescopic rod 39, causing the slider 40 to abut against the spiral groove 31. To prevent the annular sliding sleeve 11 from reversing, and thus to prevent the cover plate 34 from rotating accidentally, so as not to accidentally cover the heat dissipation window 20 and affect heat dissipation.

[0068] When it is necessary to cover the heat dissipation window 20, the electric telescopic rod 39 is activated, causing it to shorten. The push rod of the electric telescopic rod 39 drives the slider 40 to slide along the spiral groove 31, causing the annular sleeve 11 to reverse. This, in turn, drives the cover plate 34 to rotate around the second rotating shaft 44 via the first connecting rod 33, thus covering the heat dissipation window 20. At the same time, the second spring 38 gradually returns to its initial state.

[0069] A temperature sensor 23 is installed at the heat dissipation window 20. A PLC 15 is installed on the housing 4. The motor body 1, temperature sensor 23, and electric telescopic rod 39 are all electrically connected to the PLC 15. When the temperature sensor 23 detects that the temperature at the heat dissipation window 20 reaches a certain value, the PLC 15 starts the electric telescopic rod 39, which drives the annular sliding sleeve 11 to rotate, causing the cover plate 34 to rotate, thereby opening the heat dissipation window 20 for more efficient heat dissipation.

[0070] There are three arc-shaped plates 13, distributed on the circumferential surface of the housing 4, and corresponding sequentially to three cover plates 34 located on the front, rear, and top sides of the housing 4. Each arc-shaped plate 13 is mounted on the housing 4 via a connecting rod assembly. The connecting rod assembly includes two sets of connecting rods, each set of connecting rods including two second connecting rods 42, and the two second connecting rods 42 in each set, together with the arc-shaped plate 13 and the housing 4, form a parallelogram.

[0071] One end of each second connecting rod 42 is hinged to the housing 4 via a corresponding hinge seat 43, and the other end of the second connecting rod 42 is hinged to the arc plate 13. The end of the arc plate 13 near the annular sliding sleeve 11 contacts the connecting block 35 on its corresponding cover plate 34.

[0072] A first torsion spring is provided at the hinge point between the second connecting rod 42 and the housing 4. One end of the first torsion spring is fixedly connected to the housing 4, and the other end of the first torsion spring is fixedly connected to the second connecting rod 42. A second torsion spring is provided at the hinge point between the second connecting rod 42 and the arc plate 13. One end of the second torsion spring is fixedly connected to the arc plate 13, and the other end of the second torsion spring is fixedly connected to the second connecting rod 42.

[0073] In the initial state, the first and second torsion springs can keep the arc plate 13 tightly against the housing 4. When the arc plate 13 is lifted, the first and second torsion springs can buffer external impacts on the motor body 1. When the motor body 1 stops working, the first and second torsion springs can drive the arc plate 13 to reset and return to the initial state.

[0074] In the initial state, the arc-shaped plate 13 is attached to the housing 4, and both the first and second torsion springs are in their initial states. When the cover plate 34 rotates to open the heat dissipation window 20, it will lift the arc-shaped plate 13. When the arc-shaped plate 13 is lifted, due to the action of the second connecting rod 42, the arc-shaped plate 13 moves not only away from the housing 4 but also towards the end closer to the front cover 2. In this way, the contact area between the heat dissipation window 20 and the outside environment increases, and the arc-shaped plate 13 no longer covers the housing 4, which is beneficial to the heat dissipation of the housing 4 and improves the heat dissipation efficiency.

[0075] When the arc-shaped plate 13 is lifted, the first and second torsion springs possess elastic potential energy. When the arc-shaped plate 13 is impacted, the impacted arc-shaped plate 13 compresses its corresponding cover plate 34, causing the cover plate 34 to rotate towards the heat dissipation window 20, thereby driving the annular sliding sleeve 11 to rotate. The annular sliding sleeve 11 drives the electric telescopic rod 39 to slide along the second T-shaped groove 19 towards the fixed block 24, further compressing the second spring 38, and further increasing the elastic potential energy of the second spring 38. Due to the resistance of the second spring 38, the speed and force of the arc-shaped plate 13 approaching the housing 4 are reduced, thereby buffering the impact force on the motor body 1. When the external force impacting the arc-shaped plate 13 disappears, the second spring 38 pushes the electric telescopic rod 39 to slide away from the fixed block 24, causing the annular sliding sleeve 11 to rotate, thereby driving the cover plate 34 to rotate away from the heat dissipation window 20, causing the arc-shaped plate 13 to be lifted again.

[0076] The motor body 1 is mounted on a shockproof mounting base, which is used to buffer the vibration of the motor body 1 during operation.

[0077] The anti-vibration mounting base includes a fixing plate 9, a base plate 6, and an elastic element.

[0078] Two bases 10 are fixed on the fixed plate 9, and the motor body 1 is mounted on the fixed plate 9 through the bases 10. An elastic element is located between the fixed plate 9 and the base plate 6. The elastic element is used to reduce the vibration of the motor body 1, prevent the vibration from acting directly on the motor body 1, improve the stability of the motor body 1 during operation, avoid excessive vibration that could damage the components of the motor body 1, and extend the service life of the motor body 1.

[0079] The elastic element includes a first spring 7 and a telescopic rod 8. One end of the telescopic rod 8 is fixed to the lower end of the fixed plate 9, and the other end of the telescopic rod 8 is fixed to the upper end of the base plate 6. The first spring 7 is sleeved on the telescopic rod 8.

[0080] Even better, there are four telescopic rods 8, which are located at the four corners of the fixed plate 9, and each telescopic rod 8 is fitted with a first spring 7.

[0081] A mounting bracket 17 is fixed to the housing 4, and an electromagnetic interference filter 16 is mounted on the mounting bracket 17. The electromagnetic interference filter 16 is equipped with a protective cover to protect it. The electromagnetic interference filter 16 is electrically connected to the PLC 15. The electromagnetic interference filter 16 is used to reduce magnetic field interference from the motor body 1 and increase the stability of the motor body 1 during operation.

[0082] When the electromagnetic interference filter 16 and PLC 15 are located between the arc plate 13 and the housing 4, the arc plate 13 can protect the electromagnetic interference filter 16 and PLC 15.

[0083] Working principle: In the initial state, the motor body 1 is stopped, the arc plate 13 is tightly attached to the housing 4, and both the first and second torsion springs are in their initial state. The cover plate 34 blocks the heat dissipation window 20 to prevent dust or moisture from entering the motor body 1. The electric telescopic rod 39 is in the retracted state, the second spring 38 is in its initial state, and the slider 40 is located on the spiral groove 31 at the end away from the rear end cover 28.

[0084] When the motor body 1 is started by PLC15, the electromagnetic interference filter 16 is used to reduce the magnetic field interference of the motor body 1 and increase the stability of the motor body 1 during operation. The motor shaft 3 drives the cooling fan 29 to rotate, thereby accelerating the airflow in the fan shroud 12 and improving the heat dissipation efficiency. The first spring 7 and the telescopic rod 8 move up and down with the vibration of the motor body 1, thereby buffering the vibration of the motor body 1.

[0085] The motor body 1 generates heat during operation. When the temperature sensor 23 detects that the temperature inside the motor body 1 has reached the set temperature, the temperature sensor 23 transmits a signal to the PLC 15. The PLC 15 controls the electric telescopic rod 39 to extend. The push rod of the electric telescopic rod 39 drives the slider 40 to slide along the spiral groove 31, thereby driving the annular sleeve 11 to rotate. The annular sleeve 11 drives the cover plate 34 to rotate around the second rotating shaft 44 through the first connecting rod 33, so that the distance between the end of the cover plate 34 away from the second rotating shaft 44 and the heat dissipation window 20 gradually increases, thereby gradually opening the heat dissipation window 20. At the same time, the cover plate 34 lifts the arc plate 13, so that the arc plate 13 gradually moves away from the housing 4. When the arc plate 13 is lifted, due to the action of the second connecting rod 42, the arc plate 13 moves not only away from the housing 4, but also away from the end of the cover plate 34, but always remains in contact with the cover plate 34. The area of ​​the heat dissipation window 20 in direct contact with the outside increases, which is more conducive to heat dissipation. The arc-shaped plate 13 is far away from the housing 4, which also helps to dissipate heat from the motor body 1.

[0086] When the arc plate 13 is lifted, both the first and second torsion springs have elastic potential energy, which can buffer the sudden impact of the external environment on the motor body 1.

[0087] When the arc-shaped plate 13 is impacted, it presses against the corresponding cover plate 34, causing the cover plate 34 to rotate towards the heat dissipation window 20, which in turn drives the annular sleeve 11 to rotate. The annular sleeve 11 drives the electric telescopic rod 39 to slide along the second T-shaped groove 19 towards the fixed block 24, further compressing the second spring 38 and increasing its elastic potential energy. Due to the resistance of the second spring 38, the speed and force of the arc-shaped plate 13 approaching the housing 4 are reduced, thus buffering the impact force of the arc-shaped plate 13 on the motor body 1. When the external force impacting the arc-shaped plate 13 disappears, the second spring 38 pushes the electric telescopic rod 39 to slide away from the fixed block 24, causing the annular sleeve 11 to rotate, which in turn drives the cover plate 34 to rotate away from the heat dissipation window 20, causing the arc-shaped plate 13 to be lifted up again.

[0088] When the slider 40 slides to one end of the spiral groove 31 near the rear cover 28, the electric telescopic rod 39 stops working, the annular sleeve 11 stops rotating, the slider 40 abuts against the spiral groove 31 through the second spring 38, the heat dissipation window 20 is opened, and the cover plate 34 supports the arc plate 13.

[0089] At the initial stage of extension of the electric telescopic rod 39, the resistance generated by the spiral groove 31 on the electric telescopic rod 39 is greater than the elastic force of the second spring 38. The electric telescopic rod 39 will slide towards the fixed block 24, thereby compressing the second spring 38. When the elastic potential energy of the second spring 38 is greater than the resistance generated by the spiral groove 31 on the electric telescopic rod 39, the slider 40 slides along the spiral groove 31. The slider 40 slides to the end of the spiral groove 31 near the rear end cover 28.

[0090] The second spring 38 was not compressed to its elastic limit; at the same time, the electric telescopic rod 39 stopped working; the slider 40, under the action of the second spring 38, abutted against the end of the spiral groove 31 near the rear end cover 28.

[0091] When the motor body 1 stops working and it is necessary to cover the heat dissipation window 20, the electric telescopic rod 39 is activated, causing it to shorten. The push rod of the electric telescopic rod 39 drives the slider 40 to slide along the spiral groove 31 towards the end away from the rear end cover 28. The annular sleeve 11 reverses, causing the cover plate 34 to rotate around the second rotating shaft 44 via the first connecting rod 33. This causes the end of the cover plate 34 away from the second rotating shaft 44 to gradually approach the heat dissipation window 20 until the cover plate 34 completely covers the heat dissipation window 20. This prevents moisture or dust from entering the motor body 1 through the heat dissipation window 20. At this time, the slider 40 moves to the end of the spiral groove 31 away from the rear end cover 28. The electric telescopic rod 39 stops working.

[0092] During this process, the elastic potential energy of the first and second torsion springs causes the arc plate 13 to move toward the housing 4 along with the cover plate 34 until it is in close contact with the housing 4.

[0093] During this process, the second spring 38 gradually returns to its initial state.

[0094] 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 synchronous motor with built-in control device and electromagnetic interference protection, characterized in that, include: The motor body (1) has an annular sliding sleeve (11) rotatably mounted on the housing (4) of the motor body (1); the housing (4) is also provided with a drive mechanism (14), a heat dissipation window (20), and an arc plate (13). The annular sliding sleeve (11) is provided with a spiral groove (31); the driving mechanism (14) drives the annular sliding sleeve (11) to rotate by acting on the spiral groove (31); The arc-shaped plate (13) is mounted on the housing (4) via a connecting rod assembly; A cover plate (34) that shields the heat dissipation window (20) is rotatably mounted on the housing (4); the cover plate (34) is connected to the annular sliding sleeve (11) through a connector (5); The housing (4) is equipped with a PLC (15); the housing (4) is equipped with an electromagnetic interference filter (16). When the annular sliding sleeve (11) rotates, it drives the cover plate (34) to move; the movement of the cover plate (34) opens the heat dissipation window (20) and lifts the arc plate (13) to buffer the impact on the motor body (1) when it is hit.

2. The electromagnetic interference-resistant synchronous motor with integrated control device according to claim 1, characterized in that: The annular sliding sleeve (11) is provided with an arc-shaped window (32) that is compatible with the heat dissipation window (20); the arc-shaped window (32) is matched with the heat dissipation window (20).

3. The electromagnetic interference-resistant synchronous motor with integrated control device according to claim 1, characterized in that: The drive mechanism (14) includes an electric telescopic rod (39), a second spring (38), a T-shaped slider (41), and a slider (40). The housing (4) is provided with a second T-shaped groove (19) that slides with the T-shaped slider (41); a fixing block (24) is fixedly provided at one end of the second T-shaped groove (19). One end of the second spring (38) is connected to the fixed block (24); the other end of the second spring (38) is connected to the base of the electric telescopic rod (39); The electric telescopic rod (39) is slidably mounted on the second T-shaped slide groove (19) via a T-shaped slider (41); The slider (40) is mounted on the push rod of the electric telescopic rod (39); the slider (40) is in sliding engagement with the spiral groove (31).

4. The electromagnetic interference-resistant synchronous motor with integrated control device according to claim 1, characterized in that: The connector (5) includes a first rotating shaft (36) and a first connecting rod (33); The first pivot (36) is fixed to the side wall of the arc-shaped window (32); One end of the first connecting rod (33) is rotatably connected to the first rotating shaft (36); the other end of the first connecting rod (33) is rotatably connected to the cover plate (34).

5. The electromagnetic interference-resistant synchronous motor with integrated control device according to claim 3, characterized in that: A temperature sensor (23) is provided at the heat dissipation window (20); the PLC (15) is electrically connected to the temperature sensor (23), the electric telescopic rod (39), and the motor body (1).

6. The electromagnetic interference-resistant synchronous motor with integrated control device according to claim 4, characterized in that: The connecting rod assembly includes two sets of connecting rods; each set of connecting rods includes two second connecting rods (42), and the two second connecting rods (42) of each set form a parallelogram with the arc plate (13) and the housing (4); One end of the second connecting rod (42) is hinged to the housing (4); the other end of the second connecting rod (42) is hinged to the arc plate (13); A first torsion spring is provided between the second connecting rod (42) and the housing (4); a second torsion spring is provided between the second connecting rod (42) and the arc plate (13).

7. The electromagnetic interference-resistant synchronous motor with integrated control device according to claim 1, characterized in that: The motor body (1) is mounted on a shockproof mounting base; the shockproof mounting base is used to buffer the vibration of the motor body (1) during operation.

8. The electromagnetic interference-resistant synchronous motor with integrated control device according to claim 7, characterized in that: The anti-vibration mounting base includes a fixing plate (9), a base plate (6), and an elastic element; The elastic element is located between the fixed plate (9) and the base plate (6); The motor body (1) is fixedly mounted on the fixing plate (9).

9. A synchronous motor with integrated control device for electromagnetic interference protection according to claim 8, characterized in that: The elastic element includes a first spring (7) and a telescopic rod (8). The telescopic rod (8) is located between the fixed plate (9) and the base plate (6), and the first spring (7) is sleeved on the telescopic rod (8).

10. A synchronous motor with integrated control device for electromagnetic interference protection according to claim 5, characterized in that: The electromagnetic interference filter (16) is electrically connected to the PLC (15).

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