Magnetic redundancy magnetic encoder capable of actively dissipating heat

Abstract

The invention relates to the technical field of encoders, and discloses a magnetic redundancy magnetic encoder capable of active heat dissipation, which comprises a bottom plate, a shell and a protective cover, in the magnetic redundancy magnetic encoder, a rotating shaft rotates to drive a piston plate to slide along the inner wall of the protective cover: when the piston plate moves downwards, a ventilator sucks cold air outside the shell for heat dissipation, and a turning plate rotates to transfer hot air below the protective cover to the upper part; before upward movement, a turnover plate closes a mounting groove, a piston plate pushes a ventilator to quickly exhaust hot air, an air inlet is synchronously opened to introduce cold air, hot air retention is prevented, the device adopts air holes and the air inlet to perform bidirectional air suction and heat dissipation, the heat dissipation efficiency is greatly improved, and a filter screen can block dust and impurities in air and prevent the dust and impurities from entering the device to affect the accuracy; a preset wind speed sensor monitors the ventilation condition of the filter screen in real time, the filter screen is prevented from being blocked, cold air is prevented from entering, when ventilation monitoring of the filter screen is abnormal, a third threaded rod drives a sliding base and a brush plate to move, filter screen meshes are automatically cleaned, and the situation that the cooling effect is affected due to filter screen blocking is avoided.

Description

Technical Field

[0001] This invention relates to the field of encoder technology, specifically to a magnetically redundant encoder with active heat dissipation. Background Technology

[0002] In today's rapidly developing technological landscape, magnetic encoders, as precision measuring devices based on the principle of magnetic field induction, play a crucial role in numerous fields. In industrial automation, magnetic encoders are a core element for achieving precise equipment control and efficient operation. In automated production lines, they are widely used for detecting the speed and position of various motors, ensuring that materials on the production line are transported, processed, and assembled according to preset programs and precision. The booming development of robotics technology also relies heavily on the support of magnetic encoders. At the joints of robots, magnetic encoders can accurately measure the rotation angle and movement speed of the joints, providing precise feedback signals for the robot's motion control. Whether it's the precise operation of industrial robots on production lines or the flexible application of service robots in daily life, magnetic encoders play a key role. In scenarios where collaborative robots work alongside humans, the high-precision measurement of magnetic encoders ensures that the robot's movements are both accurate and safe, preventing accidental injuries to humans.

[0003] A search revealed Chinese invention patent CN119803540B, which discloses a magnetic redundancy encoder with strong anti-interference capability. The encoder includes a first housing and a second housing. The first housing and the second housing form a first space. A protective cover is provided within the first space. The protective cover and the first housing form a second space. A piston plate is slidably provided within the protective cover. The piston plate divides the second space into an upper cavity and a lower cavity. A rotating shaft rotatably passes through the center of the first housing. A first transmission component is provided on the outer wall of the rotating shaft. Multiple second transmission components are provided circumferentially along the first housing for cooperating with the first transmission component. A driving component is provided in the first housing and connected to the piston plate. The driving component is connected to the second transmission components to drive the piston plate to move up and down, thereby achieving active heat dissipation.

[0004] However, the aforementioned encoder cavity airflow is unidirectional, relying solely on the compression and intake of the piston plate for airflow, and only using a one-way valve to allow airflow into the protective cover for heat dissipation. This results in low heat dissipation efficiency. Furthermore, the one-way valve's inlet lacks a protective device, allowing dust and impurities to easily enter the encoder, reducing its accuracy. Over time, the accumulation of dust and impurities can clog the inlet, hindering external airflow into the protective cover and further worsening heat dissipation, potentially damaging the encoder in severe cases. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a magnetically redundant encoder with active heat dissipation, which solves the problems of single airflow guidance, low heat dissipation efficiency, and lack of protection at the air inlet in existing encoders.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an actively heat-dissipating magnetic redundant encoder, comprising a base plate, a housing, and a protective cover; a cleaning component for removing dust and impurities is mounted on the base plate; and a cooling component for heat dissipation is installed inside the housing. The cooling component includes two symmetrically arranged lifting slots inside a protective cover. A slider is slidably connected in the lifting slot. A piston plate is fixedly connected between the two sliders. Multiple fixing frames are evenly fixedly connected to the upper surface of the base plate. An internally threaded tube is slidably connected to the fixing frame. A connecting seat and a sliding plate are fixedly connected to both ends of the internally threaded tube. A first gear is rotatably connected in the fixing frame. A first threaded rod is fixedly connected to the end of the first gear near the sliding plate and is threadedly connected to the internally threaded tube. A sliding rod is fixedly connected in the fixing frame and is slidably connected to the sliding plate. A compression spring is sleeved on the sliding rod, and the connecting seat is fixedly connected to the piston plate. The cleaning component includes an air inlet on the base plate, with grooves on both sides of the air inlet, a sliding seat slidably connected in the groove, a third threaded rod rotatably connected in the groove and threadedly connected to the sliding seat, a brush plate fixedly connected between the two sliding seats, and a filter screen fixedly connected in the air inlet, with the brush plate and filter screen being compatible.

[0007] Preferably, the piston plate is provided with an installation groove and an adjustment groove. Multiple flaps are rotatably connected in the installation groove. A second gear is fixedly connected to one end of the flap in the adjustment groove. An electric push rod is fixedly connected in the adjustment groove. A rack is fixedly connected to the output end of the electric push rod, and the teeth of the rack mesh with the teeth of the second gear.

[0008] Preferably, a horizontal plate is fixedly connected inside the air inlet, a spring is installed at one end of the horizontal plate near the piston plate, and a cover plate is fixedly connected to the other end of the spring.

[0009] Preferably, the base plate has a mounting hole, a rotating shaft is rotatably connected in the mounting hole, and a magnetic steel ring is fixedly connected to one end of the rotating shaft near the piston plate.

[0010] Preferably, a plurality of fixing plates are uniformly fixedly connected to the upper surface of the base plate, and a signal processing board is fixedly connected between the plurality of fixing plates, and the signal processing board is adapted to the magnetic ring.

[0011] Preferably, a plurality of connecting plates are uniformly fixedly connected to the outer wall of the rotating shaft, and an arc-shaped toothed plate is fixedly connected to the end of the connecting plate away from the rotating shaft, and the teeth of the arc-shaped toothed plate mesh with the teeth of the first gear.

[0012] Preferably, the protective cover has heat dissipation holes, and an exhaust pipe is fixedly connected inside the heat dissipation holes.

[0013] Preferably, a fixed frame is fixedly connected inside the exhaust pipe, and an exhaust fan is rotatably connected inside the fixed frame.

[0014] Preferably, a second threaded rod is fixedly connected to one end of the piston plate near the fixed frame, and the second threaded rod is threadedly connected to the ventilation fan.

[0015] Preferably, the housing has an air hole, and the exhaust pipe is connected to the air hole.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In this invention, the cooling component solves the problems of single airflow guidance and low heat dissipation efficiency in existing encoders. The rotating shaft drives the piston plate to slide along the inner wall of the protective cover. When the piston plate moves downwards, the ventilation fan rotates to draw cold air from outside the housing into the protective cover for heat dissipation. The rotating flap quickly transfers the hot air generated below the protective cover to the top of the cover. Before the piston plate moves upwards, the flap closes the mounting slot. Under the push of the piston plate, the ventilation fan rotates to quickly expel the hot air, and the air inlet opens to allow external cold air to enter and dissipate heat from the device, preventing the hot air inside the protective cover from failing to dissipate in time when the shaft rotates rapidly. The use of bidirectional air intake through vents and air inlets effectively improves the heat dissipation efficiency of the device.

[0017] 2. In this invention, the lack of protection at the air inlet of existing encoders is solved by the cleaning component. The filter screen blocks dust and impurities in the air, preventing them from entering the device and affecting its accuracy. A preset wind speed sensor monitors the ventilation status of the filter screen to prevent filter clogging from affecting the entry of cool air. When the filter screen ventilation monitoring is abnormal, the third threaded rod drives the slide and brush plate to move, automatically cleaning the filter screen to prevent the filter screen mesh from clogging and affecting airflow, thereby affecting the heat dissipation of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a magnetically redundant encoder with active heat dissipation according to the present invention. Figure 2 This is a schematic diagram of the base plate structure of a magnetic redundant encoder with active heat dissipation according to the present invention. Figure 3 This is a cross-sectional view of the housing of a magnetic redundant encoder with active heat dissipation according to the present invention. Figure 4 This is a cross-sectional view of the internal threaded tube of a magnetic redundant encoder with active heat dissipation according to the present invention. Figure 5 This is a cross-sectional view of the exhaust pipe of a magnetic redundant encoder with active heat dissipation according to the present invention. Figure 6 This is a cross-sectional view of the adjustment slot of a magnetic redundant encoder with active heat dissipation according to the present invention. Figure 7 This is a cross-sectional view of the air inlet of a magnetically redundant encoder with active heat dissipation according to the present invention.

[0019] In the diagram: 1. Base plate; 2. Housing; 3. Shaft; 4. Filter screen; 5. Protective cover; 6. Exhaust pipe; 7. Air inlet; 8. Horizontal plate; 9. Air vent; 10. Piston plate; 11. Fixing plate; 12. Signal processing board; 13. Magnet ring; 14. Fixing bracket; 15. Cover plate; 16. Connecting plate; 17. Connecting seat; 18. Internal threaded pipe; 19. Arc-shaped toothed plate; 20. Slide rod; 21. First threaded rod; 22. 23. First gear; 24. Slide plate; 25. Compression spring; 26. Second threaded rod; 27. Fixing frame; 28. Exhaust fan; 29. ​​Adjustment groove; 30. Heat dissipation hole; 31. Lifting groove; 32. Slider; 33. Third threaded rod; 34. Mounting groove; 35. Flip plate; 36. Second gear; 37. Rack; 38. Electric actuator; 39. Mounting hole; 40. Slide groove; 41. Slide block; 42. Brush plate; 43. Spring. Detailed Implementation

[0020] 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.

[0021] refer to Figures 1-7The diagram illustrates an actively heat-dissipating magnetic redundant encoder, comprising a base plate 1, a housing 2, and a protective cover 5. A cleaning assembly for removing dust and impurities is mounted on the base plate 1. A cooling assembly for heat dissipation is installed inside the housing 2. The cooling assembly includes two symmetrically arranged lifting slots 30 within the protective cover 5. A slider 31 is slidably connected within each lifting slot 30. A piston plate 10 is fixedly connected between the two sliders 31. Multiple mounting brackets 14 are uniformly fixedly connected to the upper surface of the base plate 1. Internally threaded tubes 18 are slidably connected to each mounting bracket 14. Connecting seats 17 and sliding plates 23 are fixedly connected to both ends of the internally threaded tubes 18. The mounting brackets 14 rotate... A first gear 22 is dynamically connected, and a first threaded rod 21 is fixedly connected to one end of the first gear 22 near the slide plate 23. The first threaded rod 21 is threadedly connected to the internally threaded tube 18. A slide rod 20 is fixedly connected inside the fixing frame 14 and is slidably connected to the slide plate 23. A compression spring 24 is sleeved on the slide rod 20, and a connecting seat 17 is fixedly connected to the piston plate 10. The piston plate 10 has an installation groove 33 and an adjustment groove 28. Multiple flaps 34 are evenly rotatably connected in the installation groove 33. A second gear 35 is fixedly connected to one end of the flap 34 located in the adjustment groove 28. An electric actuator 37 is fixedly connected in the adjustment groove 28. A rack 36 is fixedly connected to the output end of the electric actuator 37, and the teeth of the rack 36 mesh with the teeth of the second gear 35. A horizontal plate 8 is fixedly connected inside the air inlet 7. A spring 42 is installed at one end of the horizontal plate 8 near the piston plate 10, and a cover plate 15 is fixedly connected to the other end of the spring 42. A mounting hole 38 is provided on the base plate 1, and a rotating shaft 3 is rotatably connected inside the mounting hole 38. A magnetic steel ring 13 is fixedly connected to one end of the rotating shaft 3 near the piston plate 10. Multiple fixing plates 11 are evenly fixedly connected to the upper surface of the base plate 1, and a signal processing board 12 is fixedly connected between the multiple fixing plates 11. The signal processing board 12 is compatible with the magnetic steel ring 13. The outer wall of the rotating shaft 3 is uniformly fixedly connected with multiple connecting plates 16. The end of the connecting plate 16 away from the rotating shaft 3 is fixedly connected with an arc-shaped toothed plate 19, and the teeth of the arc-shaped toothed plate 19 mesh with the teeth of the first gear 22. The protective cover 5 is provided with heat dissipation holes 29, and an exhaust pipe 6 is fixedly connected in the heat dissipation holes 29. A fixed frame 26 is fixedly connected in the exhaust pipe 6, and a ventilation fan 27 is rotatably connected in the fixed frame 26. The piston plate 10 is fixedly connected with a second threaded rod 25 at the end near the fixed frame 26, and the second threaded rod 25 is threadedly connected to the ventilation fan 27. The housing 2 is provided with an air hole 9, and the exhaust pipe 6 is connected to the air hole 9.

[0022] To improve the heat dissipation effect of the device, this invention includes a cooling component. Rotation of the shaft 3 causes the piston plate 10 to slide along the inner wall of the protective cover 5. When the piston plate 10 moves downwards, the ventilation fan 27 rotates to draw in cool air from outside the housing 2 into the protective cover 5 for heat dissipation. The flap 34 rotates to quickly transfer the hot air generated below the protective cover 5 to the top of the protective cover 5. Before the piston plate 10 moves upwards, the flap 34 closes the mounting slot 33. Driven by the piston plate 10, the ventilation fan 27 rotates to quickly expel the hot air, and the air inlet 7 opens to allow external cool air to enter and dissipate heat from the device, preventing the hot air inside the protective cover 5 from failing to dissipate in time when the shaft 3 rotates rapidly. The bidirectional intake of cool air through the vent 9 and air inlet 7 effectively improves the heat dissipation efficiency of the device.

[0023] Specifically, firstly, the piston plate 10 divides the protective cover 5 into an upper cavity and a lower cavity. The rotating shaft 3 drives the connecting plate 16 and the arc-shaped toothed plate 19 to rotate synchronously. Before the arc-shaped toothed plate 19 meshes with the first gear 22, the hot air inside the protective cover 5 enters the upper cavity through the mounting groove 33. After the hot air enters, the electric push rod 37 extends and pushes the rack 36 to move, causing multiple flip plates 34 to flip synchronously, sealing the mounting groove 33 to prevent the hot air from returning to the lower cavity during the movement of the piston plate 10. When the arc-shaped toothed plate 19 meshes with the first gear 22, the first gear 22 rotates and drives the internally threaded tube 18 to move upward along the hole on the fixed frame 14. The outer wall of the internally threaded tube 18 is fixedly connected with a spline strip, which can prevent the internally threaded tube 18 from rotating during sliding. At the same time, the compression spring 24 gradually... As the piston plate 10 is gradually compressed, the slider 31, which is fixedly connected to the arc-shaped end of the piston plate 10, moves along the lifting groove 30. During the upward movement of the piston plate 10, the hot air collected in the upper cavity of the protective cover 5 enters the exhaust pipe 6. During the upward movement of the piston plate 10, the second threaded rod 25 drives the ventilation fan 27 to rotate. The second threaded rod 25 does not contact the fixed frame 26. There is no self-locking between the second threaded rod 25 and the ventilation fan 27, and between the first threaded rod 21 and the internal threaded pipe 18. The hot air in the exhaust pipe 6 is quickly discharged through the air hole 9. As the piston plate 10 moves upward, the volume of the upper cavity gradually decreases and the volume of the lower cavity gradually increases. At this time, the cover plate 15 separates from the air inlet 7, and the cold air from the outside enters the lower cavity of the protective cover 5 through the air inlet 7 for active heat dissipation.

[0024] Secondly, after the arc-shaped toothed plate 19 disengages from the first gear 22, under the restoring force of the compression spring 24, the internal threaded tube 18 moves downward along the fixed frame 14. The first threaded rod 21 and the first gear 22 rotate in opposite directions, causing the piston plate 10 to move downward along the inner wall of the protective cover 5. At the same time, the electric push rod 37 retracts, driving the rack 36 to move, causing multiple flip plates 34 to flip simultaneously and open the mounting slot 33. Driven by the piston plate 10, the second threaded rod 25 drives the ventilation fan 27 to rotate in opposite directions, drawing external cold air into the protective cover 5 through the air hole 9 for heat dissipation, and the cold air entering through the exhaust pipe 6... The air will not affect the entry of hot air into the upper cavity. At the same time, the cover plate 15 is pulled by the spring 42 to fit with the air inlet 7, so that the lower cavity is sealed, which can accelerate the speed of hot air entering the upper cavity. After the hot air in the upper cavity has entered, the electric push rod 37 extends to push the rack 36 to move, and simultaneously drives multiple flaps 34 to rotate, closing the mounting slot 33. When the arc-shaped toothed plate 19 meshes with the first gear 22, the above operation is repeated to actively dissipate heat and cool the device. External cold air is alternately drawn into the device through the air hole 9 and the air inlet 7, which accelerates the heat dissipation efficiency of the device.

[0025] refer to Figures 1-7 The cleaning component includes an air inlet 7 on the base plate 1. Slide grooves 39 are provided on both sides of the air inlet 7. A slide seat 40 is slidably connected in the slide groove 39. A third threaded rod 32 is rotatably connected in the slide groove 39 and threadedly connected to the slide seat 40. A brush plate 41 is fixedly connected between the two slide seats 40. A filter screen 4 is fixedly connected in the air inlet 7 and the brush plate 41 is compatible with the filter screen 4.

[0026] To improve the protective performance of the device, this invention includes a cleaning component. The filter 4 blocks dust and impurities in the air, preventing them from entering the device and affecting its accuracy. A preset wind speed sensor monitors the ventilation status of the filter 4 to prevent clogging and ensure that cool air can enter. When the ventilation of the filter 4 is abnormal, the third threaded rod 32 drives the slide 40 and brush plate 41 to move, automatically cleaning the filter 4 to prevent the mesh of the filter 4 from becoming clogged and affecting airflow, which in turn affects the heat dissipation of the device.

[0027] Specifically, the ventilation status of filter 4 is monitored by a wind speed sensor pre-installed in air inlet 7. When an abnormal wind speed is detected in filter 4 at air inlet 7, the drive assembly matched with the third threaded rod 32 drives it to rotate, driving brush plate 41 to move along slide groove 39 to clean the mesh on filter 4. The wind speed sensor monitors the situation and compares the monitoring data with the set value. When the wind speed of filter 4 returns to normal, the third threaded rod 32 drives brush plate 41 to move back to its original position. Filter 4 is also installed in air hole 9. Under the blowing of ventilation fan 27, the clogging of mesh on filter 4 can be delayed, greatly extending the cleaning time of filter 4. Under the protection of filter 4, dust and impurities can be prevented from entering the device and affecting its accuracy. The cleaning by brush plate 41 can prevent the mesh of filter 4 from clogging and affecting the heat dissipation of the device.

[0028] The working principle of this invention is as follows: Rotation of the shaft 3 drives the piston plate 10 to slide along the inner wall of the protective cover 5. When the piston plate 10 moves downwards, the ventilation fan 27 rotates to draw in cold air from outside the housing 2 into the protective cover 5 for heat dissipation. The flap 34 rotates to quickly transfer the hot air generated below the protective cover 5 to the top of the protective cover 5. Before the piston plate 10 moves upwards, the flap 34 closes the mounting groove 33. Under the push of the piston plate 10, the ventilation fan 27 rotates to quickly expel the hot air. The air inlet 7 opens to allow external cold air to enter and dissipate heat from the device, preventing the hot air inside the protective cover 5 from not being expelled in time when the shaft 3 rotates rapidly. An air velocity sensor installed inside the air inlet 7 monitors the ventilation status of the filter 4. When an abnormal air velocity is detected in the filter 4 at the air inlet 7, the drive assembly matched with the third threaded rod 32 drives it to rotate, driving the brush plate 41 to move along the slide groove 39 to clean the mesh on the filter 4. The air velocity sensor monitors the air velocity and compares the monitoring data with the set value. When the air velocity of the filter 4 returns to normal, the third threaded rod 32 drives the brush plate 41 to move back to its original position. The air hole 9 is also equipped with a filter 4. Under the blowing of the ventilation fan 27, the clogging of the mesh on the filter 4 can be delayed, and the cleaning time of the filter 4 can be greatly extended.

[0029] Finally, it should be noted that the above description is only 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 magnetic redundancy encoder with active heat dissipation, comprising a base plate (1), a housing (2), and a protective cover (5), characterized in that, A cleaning assembly for removing dust and impurities is installed on the base plate (1), and a cooling assembly for heat dissipation is installed inside the housing (2). The cooling component includes two lifting slots (30) symmetrically opened in the protective cover (5). A slider (31) is slidably connected in the lifting slot (30). A piston plate (10) is fixedly connected between the two sliders (31). A plurality of fixed frames (14) are evenly fixedly connected on the upper surface of the base plate (1). An internal threaded tube (18) is slidably connected on the fixed frame (14). A connecting seat (17) and a sliding plate (23) are fixedly connected at both ends of the internal threaded tube (18). A first gear (22) is rotatably connected in the fixed frame (14). A first threaded rod (21) is fixedly connected at one end of the first gear (22) near the sliding plate (23). The first threaded rod (21) is threadedly connected to the internal threaded tube (18). A sliding rod (20) is fixedly connected in the fixed frame (14). The sliding rod (20) is slidably connected to the sliding plate (23). A compression spring (24) is sleeved on the sliding rod (20). The connecting seat (17) is fixedly connected to the piston plate (10). The cleaning assembly includes an air inlet (7) on a base plate (1), with grooves (39) on both sides of the air inlet (7), a slide block (40) slidably connected in the groove (39), a third threaded rod (32) rotatably connected in the groove (39), and the third threaded rod (32) threadedly connected to the slide block (40), a brush plate (41) fixedly connected between the two slide blocks (40), and a filter screen (4) fixedly connected in the air inlet (7), and the brush plate (41) and the filter screen (4) are compatible.

2. The actively heat-dissipating magnetic redundancy encoder according to claim 1, characterized in that: The piston plate (10) is provided with an installation groove (33) and an adjustment groove (28). Multiple flaps (34) are evenly rotatably connected in the installation groove (33). A second gear (35) is fixedly connected to one end of the flap (34) located in the adjustment groove (28). An electric push rod (37) is fixedly connected in the adjustment groove (28). A rack (36) is fixedly connected to the output end of the electric push rod (37), and the teeth of the rack (36) mesh with the teeth of the second gear (35).

3. The actively heat-dissipating magnetic redundancy encoder according to claim 1, characterized in that: A horizontal plate (8) is fixedly connected inside the air inlet (7). A spring (42) is installed at one end of the horizontal plate (8) near the piston plate (10). A cover plate (15) is fixedly connected to the other end of the spring (42).

4. The actively heat-dissipating magnetic redundancy encoder according to claim 1, characterized in that: The base plate (1) has an installation hole (38), and a rotating shaft (3) is rotatably connected in the installation hole (38). A magnetic steel ring (13) is fixedly connected to one end of the rotating shaft (3) near the piston plate (10).

5. The actively heat-dissipating magnetic redundancy encoder according to claim 4, characterized in that: The upper surface of the base plate (1) is uniformly fixedly connected with a plurality of fixing plates (11), and a signal processing board (12) is fixedly connected between the plurality of fixing plates (11), and the signal processing board (12) is adapted to the magnetic steel ring (13).

6. The actively heat-dissipating magnetic redundancy encoder according to claim 4, characterized in that: Multiple connecting plates (16) are uniformly fixedly connected to the outer wall of the rotating shaft (3). An arc-shaped toothed plate (19) is fixedly connected to one end of the connecting plate (16) away from the rotating shaft (3), and the teeth of the arc-shaped toothed plate (19) mesh with the teeth of the first gear (22).

7. The actively heat-dissipating magnetic redundancy encoder according to claim 1, characterized in that: The protective cover (5) has a heat dissipation hole (29), and an exhaust pipe (6) is fixedly connected inside the heat dissipation hole (29).

8. The actively heat-dissipating magnetic redundancy encoder according to claim 7, characterized in that: A fixed frame (26) is fixedly connected inside the exhaust pipe (6), and an air exchange fan (27) is rotatably connected inside the fixed frame (26).

9. A magnetically redundant encoder with active heat dissipation according to claim 8, characterized in that: The piston plate (10) is fixedly connected to a second threaded rod (25) at one end near the fixed frame (26), and the second threaded rod (25) is threadedly connected to the ventilation fan (27).

10. A magnetically redundant encoder with active heat dissipation according to claim 1, characterized in that: The housing (2) has an air hole (9) and the exhaust pipe (6) is connected to the air hole (9).

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