Synchronous motor with efficient heat dissipation

Abstract

The invention relates to the technical field of motor heat dissipation, in particular to an efficient heat dissipation synchronous motor which comprises a shell, a rotating shaft is arranged in the shell, a rotor is arranged on the part, located in the shell, of the rotating shaft, and a stator connected with the shell is arranged on the outer side of the stator; cooling fins are arranged on the outer side of the shell, an air guide device is arranged at the end, penetrating out of the shell, of the rotating shaft, the air guide device and the cooling fins jointly form an air circulation channel, and an adjusting device is arranged in the air guide device and used for adjusting the flow direction of air passing through the air circulation channel; a liquid cooling device is arranged on the outer side of the shell and shields the air circulation channel, and a rotating device is arranged at one end of the liquid cooling device and makes contact with the air guiding device. By arranging the air guide device and the liquid cooling device, in the whole operation process, the system intelligently adjusts the working states of the air guide device and the liquid cooling device according to the temperature and airflow conditions, so that the optimal heat dissipation effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of motor heat dissipation, and in particular to a synchronous motor with efficient heat dissipation. Background Art

[0002] A synchronous motor is a component that integrates rotation and stillness, electromagnetic changes and mechanical movement to achieve the conversion of electrical energy into mechanical energy. Its dynamic performance is very complex, and its dynamic performance has a great impact on the dynamic performance of the entire power system. In the process of converting electrical energy into mechanical energy, the motor suffers energy loss, and most of this lost energy is converted into heat energy, causing the motor to heat up. Excessive motor temperature will reduce the life of the insulation material, reduce operating efficiency, and may even cause permanent demagnetization or burnout of the magnetic material. Therefore, an efficient heat dissipation system is crucial to ensure the life, efficiency and operational safety of the motor.

[0003] The Chinese patent with application number CN202222125374.9 discloses a forced air cooling device for a high-voltage synchronous motor, comprising a motor housing, an air inlet is provided at the lower part of the motor housing, a first axial flow fan is provided at the position of the air inlet, an exhaust port is provided at the upper part of the motor housing, a second axial flow fan is provided at the position of the exhaust port; the first axial flow fan and the second axial flow fan are provided with a fan control circuit, and the fan control circuit is electrically connected to the motor control circuit. The device opens the exhaust port at the upper part of the motor housing, uses the first axial flow fan and the second axial flow fan to achieve sufficient heat exchange between the inner cavity of the motor housing and the outside world, solves the heat dissipation problem of the high-voltage synchronous motor, and combines the fan control circuit to make the first axial flow fan and the second axial flow fan synchronously powered on with the high-voltage synchronous motor, thereby improving the reliability of the heat dissipation operation.

[0004] Although the above device can improve the heat dissipation efficiency of the synchronous motor through the axial flow fan, in actual application, the existing technology still mainly relies on air cooling to dissipate heat from the synchronous motor. However, the effect of air cooling is limited and cannot fully meet the heat dissipation requirements of the synchronous motor under high load operation or high temperature environment. In addition, during the air cooling process, dust is easily adhered to the outside of the synchronous motor, especially on the heat sink, which will hinder the effective dissipation of heat and thus weaken the heat dissipation effect.

[0005] In view of the problems and shortcomings revealed by the above analysis, it is particularly urgent and important to develop a synchronous motor with efficient heat dissipation performance. Summary of the invention

[0006] The object of the present invention is to provide a synchronous motor with efficient heat dissipation to solve the technical problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A synchronous motor with high efficiency in heat dissipation comprises a housing, a rotating shaft is arranged inside the housing, a rotor is arranged on the part of the rotating shaft located inside the housing, and a stator connected to the housing is arranged outside the stator;

[0009] A heat sink is provided on the outer side of the shell, an air guide is provided at one end of the rotating shaft passing through the shell, the air guide and the heat sink together form an air circulation channel, an adjustment device is provided inside the air guide, and the adjustment device is used to adjust the flow direction through the air circulation channel;

[0010] A liquid cooling device is provided on the outer side of the shell, the liquid cooling device shields the air circulation channel, and a rotating device is provided at one end of the liquid cooling device, the rotating device is in contact with the air guide device;

[0011] The air passes through the primary cooling section between the swirling device and the air guide device and the secondary cooling section between the liquid cooling device and the shell, thereby achieving double cooling of the shell.

[0012] The present invention provides an air guide device and a liquid cooling device. In the initial state, the shell is covered by the first container and the second container, and is fastened and connected by a fixed connector. At this time, the connecting pipe assembly and the vent are in an interlaced state, and air can enter the inside of the hood through the vent. When the synchronous motor is working, the working state of the system is judged by monitoring the values ​​of the temperature sensor and the flow sensor; when the temperature is normal and the airflow is sufficient, the air guide device works normally, and the external air is drawn into the hood by the rotation of the fan blade to cool the heat sink; when the temperature rises and the airflow is normal, it means that the air guide device cannot meet the cooling demand alone. At this time, the liquid cooling device is started, and the shell is contact-cooled by the coolant, while the connecting pipe assembly performs a first-level cooling treatment on the airflow, and the liquid cooling device performs a second-level cooling treatment to achieve comprehensive cooling of the shell; when the temperature rises and the airflow is insufficient, it means that the vent may be blocked. At this time, the air guide device changes from the exhaust state to the blowing state, and the vent is cleaned by the airflow. At the same time, the liquid cooling device continues to cool the shell. During the entire operation process, the system intelligently adjusts the working status of the air guide device and liquid cooling device according to the temperature and airflow conditions to achieve the best heat dissipation effect.

[0013] Preferably, the wind guide device comprises a rotating disk arranged on a rotating shaft, and the rotating disk is provided with fan blades distributed in an array;

[0014] A wind shield is arranged on the outer side of the fan blade, the wind shield is connected to the end of the shell, and the wind shield is provided with ventilation holes distributed in an array.

[0015] Preferably, the fan blade is in an inverted "﹁" shape, the horizontal portion of the fan blade is hinged to the outer side of the turntable, and the vertical portion of the fan blade is fixedly connected to the adjustment device.

[0016] Preferably, the regulating device comprises a fixing ring arranged on the rotating shaft, the outer side of the fixing ring is provided with pushers distributed in an array, the output end of the pushers is provided with a connecting tube, and one end of the connecting tube away from the pushers is connected to the vertical part of the fan blade;

[0017] A convex point is arranged on the output end of the pushing member, and the convex point is slidably connected with the arc groove arranged inside the connecting cylinder.

[0018] Preferably, when the pushing member is in an extended state, the fan blade is deflected, the air guide device is in a blowing state, and air flows from the air guide device toward the liquid cooling device;

[0019] When the pusher is in the contracted state, the fan blade is deflected in the opposite direction, the air guide device is in the exhaust state, and the air moves from the liquid cooling device to the direction of the air guide device.

[0020] Preferably, the liquid cooling device includes a first container and a second container arranged on the outside of the shell, the first container and the second container are connected by a fixed connecting member, and the outside of the first container and the second container are respectively provided with an input end and an output end, and the input end and the output end are connected to an external water pump.

[0021] Preferably, the rotating device includes a rotating ring arranged at the end of the second containing body, the rotating ring is located inside the second containing body and is provided with array-distributed blades at one end, the rotating ring is provided with array-distributed through holes, a connecting pipe assembly is provided on the outside of the through hole, and the end of the connecting pipe assembly away from the through hole is commonly connected with a transfer piece.

[0022] Preferably, the connecting pipe assembly is a first connecting pipe connected to the through hole, one end of the first connecting pipe away from the through hole is connected to a second connecting pipe, and the second connecting pipe is connected to the transfer member.

[0023] Preferably, the first connecting tube comprises an elastic telescopic tube, a wing plate is provided on the outer side of the second connecting tube, and the width between the wing plate and the second connecting tube is greater than the width of the through hole.

[0024] Preferably, a positioning member is provided between the rotating ring and the second containing body, the positioning member comprises an electromagnetic latch, the electromagnetic latch is arranged on the rotating ring, and a slot opposite to the electromagnetic latch is provided inside the second containing body.

[0025] Technical effects and advantages of the present invention:

[0026] 1. The present invention sets an air guide device and a liquid cooling device. When the temperature is normal and the airflow is sufficient, the air guide device works normally, and the external air is drawn into the wind cover by the rotation of the fan blades to cool the heat sink; when the temperature rises and the airflow is normal, the liquid cooling device is started, and the shell is contacted and cooled by the coolant, and at the same time, the connecting pipe assembly performs a primary cooling treatment on the airflow, and the liquid cooling device performs a secondary cooling treatment to achieve comprehensive cooling of the shell; when the temperature rises and the airflow is insufficient, the air guide device changes from the exhaust state to the blowing state, and the ventilation holes are cleaned by the airflow. At the same time, the liquid cooling device continues to cool the shell.

[0027] 2. The present invention provides a liquid cooling device. When the first container and the second container cover the shell, the adaption grooves on the first container and the second container give way to the components on the shell to avoid affecting the normal operation of the synchronous motor. The first container and the second container are combined into a whole by a fixed connection piece, so as to facilitate the covering of the shell by the liquid cooling device and the subsequent disassembly and replacement.

[0028] 3. The present invention provides an air guiding device and an adjusting device, and controls the pushing member to switch between an extended state and a contracted state, thereby driving the vertical part of the fan blade to rotate. After the vertical part rotates, the deflection direction and deflection angle of the horizontal part of the fan blade will rotate to a certain extent, thereby driving the working state of the air guiding device to change, so as to adapt to the heat dissipation state of the shell under different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0030] Figure 2 It is a structural schematic diagram of another perspective of the main body of the present invention;

[0031] Figure 3 It is a structural schematic diagram of the housing of the present invention;

[0032] Figure 4 It is a schematic diagram of the structure inside the housing of the present invention;

[0033] Figure 5 It is a schematic diagram of the structure of the wind shield of the present invention;

[0034] Figure 6 It is a schematic diagram of the structure of the fan blade of the present invention;

[0035] Figure 7 It is a schematic diagram of the structure of the rotating device of the present invention;

[0036] Figure 8 It is a schematic diagram of the cross-sectional structure of the rotating device of the present invention;

[0037] Fig. 9It is a structural schematic diagram of the connecting pipe assembly of the present invention;

[0038] Fig.10 It is a structural schematic diagram of the air guide device of the present invention;

[0039] Fig.11 It is a structural schematic diagram of the regulating device of the present invention;

[0040] Fig.12 It is a schematic diagram of the expanded structure of the connecting tube of the present invention.

[0041] In the figure: 1. shell; 2. wind guide device; 201. wind cover; 202. ventilation hole; 203. rotating disk; 204. fan blade; 3. adjusting device; 301. fixing ring; 302. pushing member; 303. protrusion; 304. connecting tube; 305. arc groove; 4. liquid cooling device; 401. first container; 402. second container; 403. fixed connecting member; 404. input end; 405. output end; 5. rotating device; 501. rotating ring; 502. blade; 503. positioning member; 504. through hole; 505. connecting pipe assembly; 5051. first connecting pipe; 5052. second connecting pipe; 5053. wing plate; 506. transfer member; 6. stator; 7. rotor; 8. rotating shaft; 9. heat sink. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0043] Reference Figures 1 to 12 As shown, a synchronous motor with efficient heat dissipation includes a shell 1, a rotating shaft 8 is provided inside the shell 1, a rotor 7 is provided on the part of the rotating shaft 8 located inside the shell 1, and a stator 6 connected to the shell 1 is provided on the outside of the stator 6.

[0044] The stator 6 is the fixed part of the synchronous motor, and is composed of an iron core and a winding. The iron core provides a magnetic circuit, and the winding generates a magnetic field by passing current.

[0045] The rotor 7 is the rotating part of the synchronous motor, and is also composed of an iron core and a winding. The rotor 7 winding includes a DC excitation winding or a permanent magnet, which is used to generate a magnetic field that interacts with the stator 6 magnetic field.

[0046] The number of magnetic pole pairs of the magnetic field of the rotor 7 is equal to the number of magnetic pole pairs of the magnetic field of the stator 6 , and the rotor 7 will rotate synchronously under the action of the rotating magnetic field of the stator 6 .

[0047] A heat sink 9 is provided on the outside of the shell 1, and an air guide device 2 is provided at one end of the rotating shaft 8 passing through the shell 1. The air guide device 2 and the heat sink 9 together constitute an air circulation channel. An adjustment device 3 is provided inside the air guide device 2, and the adjustment device 3 is used to adjust the flow direction through the air circulation channel.

[0048] The air guide device 2 passes external air into the air circulation channel, and the air processes the heat accumulated between the heat sinks 9 to achieve cooling of the synchronous motor.

[0049] The regulating device 3 is used to control the airflow direction of the air guiding device 2 to adapt to the working state of the air guiding device 2 under different working conditions.

[0050] A liquid cooling device 4 is provided on the outer side of the shell 1 , and the liquid cooling device 4 blocks the air circulation channel. A rotating device 5 is provided at one end of the liquid cooling device 4 , and the rotating device 5 is in contact with the air guiding device 2 .

[0051] The liquid cooling device 4 covers the housing 1, thereby achieving the dual cooling effects of liquid cooling and air cooling of the synchronous motor, thereby avoiding the situation where a single cooling method cannot achieve a sufficient cooling effect.

[0052] The air passes through the primary cooling section between the swirling device 5 and the air guide device 2 and the secondary cooling section between the liquid cooling device 4 and the shell 1, thereby achieving double cooling of the shell 1.

[0053] Reference Figures 1 to 6 As shown, the wind guiding device 2 includes a rotating disk 203 arranged on the rotating shaft 8, and the rotating disk 203 is provided with fan blades 204 distributed in an array.

[0054] An air cover 201 is disposed on the outer side of the fan blade 204 . The air cover 201 is connected to the end of the housing 1 . The air cover 201 has ventilation holes 202 distributed in an array.

[0055] During the rotation of the shaft 8, the fan blades 204 are synchronously driven to rotate. The fan blades 204 draw external air into the wind cover 201 through the ventilation holes 202. The air is guided by the rotating disk 203 and enters the air circulation channel between the heat sinks 9 along the inner wall of the wind cover 201, thereby realizing air cooling of the synchronous motor.

[0056] It should be noted that the inner wall of the air cover 201 is in contact with the outer side of the heat sink 9 , and the diameter of the air cover 201 is greater than the diameter of the housing 1 .

[0057] Reference Figures 6 to 11 As shown, the shape of the fan blade 204 is an inverted "﹁" shape, the horizontal part of the fan blade 204 is hinged to the outer side of the turntable, and the vertical part of the fan blade 204 is fixedly connected to the adjustment device 3.

[0058] The adjusting device 3 is used to drive the vertical part of the fan blade 204 to rotate. After the vertical part rotates, the deflection direction and deflection angle of the horizontal part of the fan blade 204 will rotate to a certain extent, thereby driving the working state of the wind guide device 2 to change.

[0059] Refer to 11 to Fig.12 As shown, the adjustment device 3 includes a fixed ring 301 arranged on the rotating shaft 8, and an array of pushers 302 are arranged on the outer side of the fixed ring 301. The output end 405 of the pusher 302 is provided with a connecting tube 304, and the end of the connecting tube 304 away from the pusher 302 is connected to the vertical part of the fan blade 204.

[0060] A convex point 303 is provided on the output end 405 of the pusher 302 , and the convex point 303 is slidably connected to an arc groove 305 provided inside the connecting tube 304 .

[0061] The pusher 302 includes an electromagnetic pusher 302 or an electric push rod. During the extension and retraction of the pusher 302, the protrusion 303 slides along the arc groove 305, thereby driving the connecting tube 304 to rotate. During the rotation of the connecting tube 304, the fan blade 204 is driven to deflect, so that the working state of the wind guide device 2 changes.

[0062] Reference Figure 10 to Figure 11 As shown, when the pusher 302 is in the extended state, the fan blade 204 is deflected, the wind guide device 2 is in the blowing state, and the air flows from the wind guide device 2 to the direction of the liquid cooling device 4.

[0063] When the pusher 302 is in the contracted state, the fan blade 204 deflects in the opposite direction, the air guide device 2 is in the exhaust state, and the air moves from the liquid cooling device 4 to the direction of the air guide device 2 .

[0064] Reference Figures 1 to 8 As shown, the liquid cooling device 4 includes a first container 401 and a second container 402 arranged on the outside of the shell 1, and the first container 401 and the second container 402 are connected by a fixed connecting member 403. The outsides of the first container 401 and the second container 402 are respectively provided with an input end 404 and an output end 405, and the input end 404 and the output end 405 are both connected to an external water pump.

[0065] Both the first containing body 401 and the second containing body 402 are provided with adaptation grooves. When the first containing body 401 and the second containing body 402 cover the shell 1, the adaptation grooves on the first containing body 401 and the second containing body 402 make way for the components on the shell 1 to avoid affecting the normal operation of the synchronous motor.

[0066] Reference Figures 1 to 9As shown, the rotating device 5 includes a rotating ring 501 arranged at the end of the second containing body 402, and the rotating ring 501 is located at one end inside the second containing body 402 and is provided with array-distributed blades 502, and the rotating ring 501 is provided with array-distributed through holes 504, and a connecting pipe assembly 505 is provided on the outer side of the through hole 504, and the end of the connecting pipe assembly 505 away from the through hole 504 is commonly connected with a transfer member 506.

[0067] When an external water pump drives water or coolant to flow between the first container 401 and the second container 402, the water flows through the blades 502 to drive the rotating ring 501 to rotate, and the rotating ring 501 drives the connecting pipe assembly 505 to rotate synchronously. The connecting pipe assembly 505 cleans the mesh and dust adhered to the wind cover 201.

[0068] Reference Fig. 9 As shown, the connecting pipe assembly 505 is connected to the first connecting pipe 5051 of the through hole 504 , and one end of the first connecting pipe 5051 away from the through hole 504 is connected to the second connecting pipe 5052 , and the second connecting pipe 5052 is connected to the transfer member 506 .

[0069] The water flow inside the first container 401 and the second container 402 can enter the connecting pipe assembly 505 through the through hole 504, so that the connecting pipe assembly 505 can pre-cool the air entering the air hood 201.

[0070] Reference Fig. 9 As shown, the first connecting tube 5051 includes an elastic telescopic tube, and a wing plate 5053 is provided on the outer side of the second connecting tube 5052 . The width of the wing plate 5053 and the second connecting tube 5052 is greater than the width of the through hole 504 .

[0071] When the air flow passes through the liquid cooling device 4 and moves in the direction of the air guide device 2, the air flow pushes the wing plate 5053 to move away from the wind hood 201. The wing plate 5053 is affected by the wind pressure and pulls the first connecting tube 5051. When the wing plate 5053 is out of contact with the through hole 504, the wing plate 5053 is affected by the elastic restoring force of the first connecting tube 5051 and knocks on the wind hood 201 to shake off the dust adhering to the wind hood 201.

[0072] Reference Fig. 9 As shown, a positioning member 503 is provided between the rotating ring 501 and the second accommodating body 402 . The positioning member 503 includes an electromagnetic latch, which is arranged on the rotating ring 501 . A slot corresponding to the electromagnetic latch is provided inside the second accommodating body 402 .

[0073] A temperature sensor is provided inside the shell 1 for monitoring the temperature inside the shell 1 . A flow sensor is provided inside the air hood 201 for detecting the air flow rate entering the air hood 201 .

[0074] When in use, the first containing body 401 and the second containing body 402 are firstly covered with the shell 1, and the first containing body 401 and the second containing body 402 are fastened together by the fixed connecting piece 403. After the first containing body 401 and the second containing body 402 are connected, the connecting pipe assembly 505 and the through hole 504 are in an interlaced state (that is, the wing plate 5053 does not completely block the ventilation hole 202).

[0075] The fixed connection part 403 includes a sealing rubber ring and a docking ring arranged on the opposite sides of the first containing body 401 and the second containing body 402. The docking ring is provided with positioning bolts distributed in an array. By providing the docking ring and the positioning bolts, the first containing body 401 and the second containing body 402 are combined into a whole, and the cavities of the first containing body 401 and the second containing body 402 are docked.

[0076] After the installation of the liquid cooling device 4 is completed, the positioning piece 503 is in a pop-up state, and the rotating ring 501 and the second container body 402 are in a fixed connection state. At this time, the wing plate 5053 on the second connecting pipe 5052 does not completely block the ventilation hole 202, and air can enter the interior of the wind cover 201 through the ventilation hole 202.

[0077] Start the synchronous motor, and the synchronous motor drives the rotating shaft 8 to rotate. The rotating shaft 8 drives the fan blades 204 on the rotating disk 203 to rotate synchronously. During the rotation of the fan blades 204, the external air is drawn into the interior of the wind cover 201 through the ventilation holes 202. Since the shape of the rotating disk 203 is arc-shaped, after the airflow enters the wind cover 201, it is guided by the rotating disk 203 into the air circulation channel between the heat sinks 9. The airflow entering the air circulation channel can process the heat accumulated between the heat sinks 9, thereby preventing the temperature between the heat sinks 9 from being unable to dissipate, causing the temperature rise of the motor to worsen.

[0078] It should be noted that the first container 401 and the second container 402 are installed on the outside of the shell 1 to prevent the dust in the factory from falling on the surface of the heat sink 9, thereby avoiding the phenomenon that the heat dissipation efficiency of the heat sink 9 is reduced due to the covering of dust. At the same time, after the first container 401 and the second container 402 cover the shell 1, the airflow blown out from the wind cover 201 can clean the dust originally attached to the heat sink 9 when it flows inside the air circulation channel.

[0079] It should be noted that: during the operation of the air-guiding device 2, by controlling the extension of the pushing member 302, the protrusion 303 and the arc groove 305 of the output end 405 of the pushing member 302 are squeezed against each other, forcing the connecting tube 304 to rotate, and the connecting tube 304 drives the fan blades 204 on the rotating disk 203 to deflect. The fan blades 204 in the deflected state can more effectively capture and guide the airflow, change the flow path of the airflow, and increase the kinetic energy of the airflow, thereby enhancing the suction force of the air-guiding device 2, so that the cooling effect of the shell 1 is improved.

[0080] During the operation of the synchronous motor, the values ​​of the temperature sensor disposed inside the housing 1 and the flow sensor inside the wind cover 201 are monitored synchronously to determine the operating state of the synchronous motor.

[0081] When it is detected that the value of the temperature sensor is greater than the set value, but the value of the flow sensor is in a normal state, it indicates that the operation of the single air guide device 2 cannot have a sufficient cooling effect on the shell 1, resulting in heat accumulation between the heat sink 9, thereby causing the temperature inside the shell 1 to rise.

[0082] When the control system detects that the single air guide device 2 cannot achieve sufficient cooling effect on the shell 1, it controls the external water pump to start. After the external water pump is started, it drives the coolant to circulate between the first container body 401 and the second container body 402 and the connecting pipe assembly 505. The coolant entering between the first container body 401 and the second container body 402 contacts and cools the shell 1 itself. At this time, the liquid cooling device 4 cooperates with the air guide device 2 to perform a comprehensive cooling treatment on the shell 1.

[0083] At the same time, the airflow will first contact with the connecting pipe assembly 505 before entering the air hood 201. The connecting pipe assembly 505 performs a primary cold treatment on the airflow entering the air hood 201. The airflow that has completed the primary cold treatment passes through the rotating disk 203 and enters the gap between the liquid cooling device 4 and the shell 1. The liquid cooling device 4 performs a secondary cold treatment on the airflow, so that the airflow that contacts the shell 1 is the airflow that has undergone two cold treatments, and the airflow can fully cool down the shell 1.

[0084] It should be noted that: during the operation of the liquid cooling device 4, the positioning member 503 is controlled to be in a contracted state, so that the rotating ring 501 and the second container 402 are in a rotationally connected state. Under the driving effect of the coolant, the rotating ring 501 is driven to rotate. During the rotation of the rotating ring 501, the angle between the wing plate 5053 and the ventilation hole 202 becomes larger (that is, the shielding area of ​​the wing plate 5053 on the ventilation hole 202 is further reduced), so that the air flow entering the wind cover 201 is increased, that is, the heat dissipation effect of the housing 1 is enhanced. After the shielding area of ​​the ventilation hole 202 is reduced, the positioning member 503 is controlled to be in a pop-up state, that is, the rotating ring 501 and the second container 402 are in a fixed connection state.

[0085] When it is detected that the value of the temperature sensor is greater than the set value and the value of the flow sensor is less than the set value, it indicates that the ventilation hole 202 is blocked, so that the airflow cannot enter the wind cover 201, causing the air between the shell 1 and the liquid cooling device 4 to stagnate, thereby causing the heat between the heat sink 9 to accumulate and be difficult to dissipate, thereby causing the temperature inside the shell 1 to rise.

[0086] When the control system detects that the ventilation hole 202 is blocked, the control system controls the pusher 302 to contract. During the contraction of the pusher 302, the protrusion 303 on the output end 405 of the pusher 302 contacts and squeezes the arc groove 305 on the connecting tube 304, forcing the connecting tube 304 to rotate in the opposite direction. During the process of the connection rotating in the opposite direction, the fan blade 204 on the rotating disk 203 is synchronously driven to deflect. After the fan blade 204 is deflected, the air guide device 2 changes from the original exhaust state to the blowing state. That is, the airflow originally entering from the vent to the liquid cooling device 4 and the shell 1 is changed to entering from the liquid cooling device 4 and the shell 1 and being discharged from the vent. In this process, the airflow discharged from the vent. Clean the impurities such as the wire mesh and dust adhering to the vent to ensure the smooth operation of the vent.

[0087] At the same time, since the liquid cooling device 4 covers the shell 1, when the air guide device 2 changes from the exhaust state to the blowing state, the airflow will move toward the ventilation hole 202 through the liquid cooling device 4. During the movement of the airflow, it will still contact and transfer mass with the liquid cooling device 4. The liquid cooling device 4 performs cold treatment on the airflow, so that the airflow can still cool the surface of the shell 1 during the process of cleaning the ventilation hole 202.

[0088] It should be noted that when the air guide device 2 changes from the exhaust state to the blowing state, the airflow enters the gap between the liquid cooling device 4 and the housing 1 from the end of the liquid cooling device 4 away from the rotating device 5. In this process, the liquid cooling device 4 performs cold treatment on the airflow. As the air guide device 2 continues to operate, the airflow gradually moves toward the wind cover 201 and is finally discharged from the ventilation holes 202 on the wind cover 201. In this process, the airflow impacts the impurities blocked in the ventilation holes 202, causing them to fall from the ventilation holes 202.

[0089] During the process of the air guide device 2 changing from the exhaust state to the suction state, the control system synchronously controls the positioning member 503 to be in a contracted state, and the rotating ring 501 and the second containing body 402 are in a rotationally connected state. At this time, driven by an external water pump, the coolant applies thrust to the blades 502 on the rotating ring 501. After receiving the thrust, the blades 502 drive the rotating ring 501 to rotate. While rotating, the rotating ring 501 synchronously drives the connecting pipe assembly 505 to rotate, so that the connecting pipe assembly 505 clears the wire mesh impurities adhering to the outside of the wind cover 201. At the same time, during the rotation of the connecting pipe assembly 505, the airflow discharged from the ventilation hole 202 will impact the wing plate 5053 on the second connecting pipe 5052. After being impacted, the wing plate 5053 drives the second connecting pipe 5052 to move toward the end away from the wind hood 201. During the movement, the wing plate 5053 simultaneously pulls the first connecting pipe 5051, causing the first connecting pipe 5051 to stretch. When the wing plate 5053 and the ventilation hole 202 on the wind hood 201 are in a completely misaligned state, under the influence of the elastic restoring force of the first connecting pipe 5051, the wing plate 5053 gradually moves toward the direction of the wind hood 201 and collides with the wind hood 201. The vibration generated by the collision will shake off the dust and impurities adhering to the inner circle of the ventilation hole 202. At the same time, since the airflow is blowing from the ventilation hole 202 to the direction of the wing plate 5053 at this time, the shaken-off dust will be cleaned out of the ventilation hole 202 by the airflow instead of remaining in the wind hood 201. At this point, the cleaning of the ventilation hole 202 is completed.

[0090] It should be noted that the provision of the wing plate 5053 is not necessary. When the device is used to block the ventilation hole 202, the ventilation hole 202 can be blocked by changing the size of the second connecting tube 5052. The specific setting can be adjusted according to actual needs.

[0091] The present invention is provided with an air guide device 2 and a liquid cooling device 4. In the initial state, the housing 1 is covered by the first container 401 and the second container 402, and is fastened and connected by a fixed connector 403. At this time, the connecting pipe assembly 505 and the ventilation hole 202 are in an interlaced state, and air can enter the inside of the wind cover 201 through the ventilation hole 202. When the synchronous motor is working, the working state of the system is judged by monitoring the values ​​of the temperature sensor and the flow sensor. When the temperature is normal and the airflow is sufficient, the air guide device 2 works normally, and the external air is drawn into the wind cover 201 by the rotation of the fan blade 204 to cool the heat sink 9. When the temperature rises and the airflow is normal, it means that the air guide device 2 cannot meet the cooling demand alone. At this time, the liquid cooling device 4 is started, and the housing 1 is contact-cooled by the coolant. At the same time, the connecting pipe assembly 505 performs a primary cooling treatment on the airflow, and the liquid cooling device 4 performs a secondary cooling treatment to achieve comprehensive cooling of the housing 1. When the temperature rises and the airflow is insufficient, it means that the ventilation hole 202 may be blocked. At this time, the air guide device 2 changes from the exhaust state to the blowing state, and the air flow cleans the ventilation hole 202. At the same time, the liquid cooling device 4 continues to cool the housing 1. During the entire operation process, the system intelligently adjusts the working state of the air guide device 2 and the liquid cooling device 4 according to the temperature and air flow conditions to achieve the best heat dissipation effect.

[0092] Finally, it should be noted that the above 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 aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0093] Although embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A synchronous motor with high heat dissipation efficiency, comprising a housing (1), a rotating shaft (8) being arranged inside the housing (1), a rotor (7) being arranged on the portion of the rotating shaft (8) located inside the housing (1), and a stator (6) connected to the housing (1) being arranged on the outer side of the stator (6), characterized in that: The outer side of the shell (1) is provided with a heat sink (9); the end of the rotating shaft (8) passing through the shell (1) is provided with an air guide device (2); the air guide device (2) and the heat sink (9) together form an air circulation channel; the interior of the air guide device (2) is provided with an adjustment device (3); the adjustment device (3) is used to adjust the flow direction of air through the air circulation channel; A liquid cooling device (4) is provided on the outside of the shell (1), the liquid cooling device (4) shields the air circulation channel, and a rotating device (5) is provided at one end of the liquid cooling device (4), the rotating device (5) is in contact with the air guide device (2); The air passes through the primary cooling section between the swirling device (5) and the air guide device (2) and the secondary cooling section between the liquid cooling device (4) and the shell (1), thereby achieving double cooling of the shell (1).

2. The synchronous motor with high heat dissipation according to claim 1, characterized in that: The wind guide device (2) comprises a rotating disk (203) arranged on a rotating shaft (8), and the rotating disk (203) is provided with fan blades (204) distributed in an array; A wind shield (201) is provided on the outer side of the fan blade (204), the wind shield (201) is connected to the end of the shell (1), and the wind shield (201) has ventilation holes (202) distributed in an array.

3. The synchronous motor with high heat dissipation according to claim 2, characterized in that: The fan blade (204) is in an inverted "﹁" shape, the horizontal portion of the fan blade (204) is hinged to the outer side of the rotating disk, and the vertical portion of the fan blade (204) is fixedly connected to the adjusting device (3).

4. The synchronous motor with high heat dissipation according to claim 3, characterized in that: The regulating device (3) comprises a fixing ring (301) arranged on a rotating shaft (8), the outer side of the fixing ring (301) is provided with pushers (302) distributed in an array, the output end (405) of the pusher (302) is provided with a connecting tube (304), and one end of the connecting tube (304) away from the pusher (302) is connected to the vertical portion of the fan blade (204); A convex point (303) is provided on the output end (405) of the pushing member (302), and the convex point (303) is slidably connected to an arc-shaped groove (305) provided inside the connecting tube (304).

5. The synchronous motor with high heat dissipation according to claim 4, characterized in that: When the pushing member (302) is in an extended state, the fan blade (204) is deflected, the air guide device (2) is in a blowing state, and air flows from the air guide device (2) toward the liquid cooling device (4); When the pushing member (302) is in a retracted state, the fan blade (204) is deflected in the opposite direction, the air guide device (2) is in an exhaust state, and the air moves from the liquid cooling device (4) in the direction of the air guide device (2).

6. The synchronous motor with high heat dissipation efficiency according to claim 2, characterized in that: The liquid cooling device (4) comprises a first container (401) and a second container (402) arranged on the outside of the shell (1); the first container (401) and the second container (402) are connected via a fixed connecting member (403); an input end (404) and an output end (405) are respectively provided on the outside of the first container (401) and the second container (402); the input end (404) and the output end (405) are both connected to an external water pump.

7. The synchronous motor with high heat dissipation efficiency according to claim 6, characterized in that: The rotating device (5) comprises a rotating ring (501) arranged at the end of the second containing body (402); one end of the rotating ring (501) located inside the second containing body (402) is provided with blades (502) distributed in an array; the rotating ring (501) is provided with through holes (504) distributed in an array; a connecting pipe assembly (505) is provided on the outside of the through hole (504); and one end of the connecting pipe assembly (505) away from the through hole (504) is commonly connected with a transfer member (506).

8. The synchronous motor with high heat dissipation efficiency according to claim 7, characterized in that: The connecting tube assembly (505) is connected to a first connecting tube (5051) with the through hole (504); one end of the first connecting tube (5051) away from the through hole (504) is connected to a second connecting tube (5052); and the second connecting tube (5052) is connected to a transfer member (506).

9. The synchronous motor with high heat dissipation efficiency according to claim 8, characterized in that: The first connecting tube (5051) comprises an elastic telescopic tube, and a wing plate (5053) is provided on the outer side of the second connecting tube (5052), and the width of the wing plate (5053) and the second connecting tube (5052) is greater than the width of the through hole (504).

10. The synchronous motor with high heat dissipation efficiency according to claim 6, characterized in that: A positioning member (503) is provided between the rotating ring (501) and the second containing body (402), and the positioning member (503) comprises an electromagnetic latch, which is arranged on the rotating ring (501), and a slot opposite to the electromagnetic latch is provided inside the second containing body (402).

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