Energy-saving motor with overload protection function

Abstract

The invention relates to the technical field of overload protection, and provides an energy-saving motor with an overload protection function, which comprises a motor shell, a mounting shell, a liquid storage cylinder, a cooling assembly and an air cooling flow guide assembly, and is characterized in that the motor shell is internally provided with a motor body, and the mounting shell is fixedly mounted at the tail of the motor shell; a temperature sensor is fixedly installed in the motor shell, the liquid storage cylinder is fixedly installed outside the motor shell, a cavity used for storing cooling liquid is formed in the liquid storage cylinder, a plurality of spiral cooling fins are circumferentially arranged in the liquid storage cylinder at equal angles, and the side, close to the liquid storage cylinder, of each spiral cooling fin is located in the cavity. The cooling assembly is installed in the motor shell, and the air cooling flow guide assembly is installed on the installation shell, and through the technical scheme, the problem that in the prior art, due to the fact that the motor is affected by the environment in the operation process, internal heat is difficult to dissipate, and then overload is caused is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of overload protection, in particular to an energy-saving motor with overload protection function. BACKGROUND

[0002] The motor is commonly known as the motor, and its main function is to generate driving torque as the power source of electric appliances or various machines. There are various types of motors, and different types of motors have different performance and application range. When selecting a motor, the specific requirements and application scenarios need to be considered to select the appropriate motor type.

[0003] When the motor is in a relatively harsh environment or located in a relatively closed space, during the operation of the motor, when the output shaft of the motor is stuck, or due to the dust blocking the cooling air duct of the motor, the environmental temperature is too high or the humidity is too large, etc. The heat dissipation efficiency of the motor is reduced, and the heat generated by the motor is difficult to dissipate, so it is easy to trigger overload protection due to overheating, especially when the external environment temperature is high. Even if the current mechanical load is within the rated range, the heat generated by itself is also difficult to dissipate in time, resulting in a cumulative rise in temperature, which causes a large amount of heat to be generated in the motor, thereby damaging the internal parts of the motor and affecting the output power of the motor, thereby shortening the service life of the motor. SUMMARY

[0004] The present application provides an energy-saving motor with overload protection function, which solves the problem that the internal heat of the motor is difficult to dissipate due to the influence of the environment during operation in the prior art.

[0005] The technical scheme of the present application is as follows: An energy-saving motor with overload protection function, comprising a motor housing, the motor housing is internally provided with a motor body, further comprising: A mounting shell is fixedly installed at the tail of the motor housing; Wherein, the motor housing is internally provided with a temperature sensor; A liquid storage cylinder is fixedly installed outside the motor housing, and the liquid storage cylinder is internally provided with a cavity for storing cooling liquid; A cooling assembly is installed inside the motor housing for cooling the motor body; An air-cooled flow guide assembly is installed on the mounting shell for cooling the motor body and the cooling liquid in the liquid storage cylinder.

[0006] On the basis of the foregoing scheme, the liquid storage cylinder is internally provided with a plurality of spiral fins arranged at equal angles in a circumferential manner, and each spiral fin is located inside the cavity.

[0007] Based on the foregoing scheme, the cooling assembly comprises: A spiral heat conduction pipe is fixedly installed inside the motor shell, and the spiral heat conduction pipe is located outside the motor body and in contact with the motor body; A backflow tee joint comprises a water inlet end, a water outlet end and a liquid discharge end, the water inlet end of the backflow tee joint is in communication with the output end of the spiral heat conduction pipe, and the water outlet end of the backflow tee joint is in communication with the input end of the liquid storage cylinder; The top of the liquid storage cylinder is provided with a liquid inlet end; The liquid discharge end, the water outlet end and the liquid inlet end are all fixedly installed with the control valve; A conveying part is installed on the installation shell for controlling the flow of the cooling liquid in the spiral heat conduction pipe.

[0008] Based on the foregoing scheme, the conveying part comprises: A conveying cylinder is fixedly installed on the installation shell, and the output end of the conveying cylinder is in communication with the input end of the spiral heat conduction pipe; A water feeding rack is fixedly installed at the tail of the conveying cylinder, the output end of the water feeding rack is in communication with the conveying cylinder, and the input end of the water feeding rack is in communication with the output end of the liquid storage cylinder through an input pipe; A conveying impeller is rotatably installed inside the conveying cylinder; A driving member is installed on the installation shell for driving the conveying impeller to rotate.

[0009] Based on the foregoing scheme, the driving member comprises a driving bevel gear, a driven bevel gear and an intermediate bevel gear, the driving bevel gear is fixedly installed at the tail of the motor body output shaft, the driven bevel gear is rotatably installed on the installation shell, and the intermediate bevel gear is rotatably installed at the end of the conveying cylinder, wherein the intermediate bevel gear is in meshing with the driving bevel gear and the driven bevel gear respectively; The position where the water feeding rack is in communication with the conveying cylinder is between the conveying impeller and the intermediate bevel gear.

[0010] Based on the foregoing scheme, the air-cooled flow guide assembly comprises: A fan is rotatably installed outside the installation shell, and the fan is fixedly connected with the driven bevel gear; An air guide cover is fixedly installed outside the motor shell, the air guide cover is located at a position of the motor shell away from the installation shell, and the air guide cover is internally provided with a hollow structure; The air guide cover is internally provided with a plurality of circumferentially and equiangularly arranged air guide grooves, and the motor shell is circumferentially and equiangularly provided with a plurality of communication grooves, and the air guide grooves and the communication grooves are one-to-one corresponding and communicated.

[0011] On the basis of the foregoing scheme, the air supply cylinder is fixedly installed at the end of the liquid storage cylinder, and an air supply groove is formed at one end of the air supply cylinder close to the liquid storage cylinder, and the air supply cylinder is communicated with the air guide cover.

[0012] On the basis of the foregoing scheme, the dust cover is fixedly installed on the installation shell, the fan is located in the dust cover, and a dust screen is fixedly installed on the dust cover.

[0013] The working principle and beneficial effects of the present application are as follows: 1、In the present application, as the motor body operates, the motor body drives the output shaft to rotate, the output shaft can drive the intermediate bevel gear to rotate through the driving bevel gear, and the intermediate bevel gear can drive the conveying impeller to rotate, so that the cooling liquid in the spiral heat pipe starts to circulate, absorbs and discharges the heat generated by the motor body, and the fan is driven to rotate synchronously through the rotation of the driven bevel gear, so that the air flow assists the heat dissipation of the motor, improves the heat dissipation and cooling effect of the motor, reduces the influence of overload on the motor, and prolongs the service life of the motor.

[0014] 2、In the present application, after the air flow enters the motor shell and carries away the heat of the motor body, the air flow enters the air guide cover through the communication groove and the air guide groove, and the air flow in the air guide cover enters the air supply groove on the air supply cylinder and is discharged from the middle of the liquid storage cylinder, so that the heat transferred by the spiral heat sink is carried away, the motor body is cooled, the temperature of the cooling liquid is further reduced, and the efficiency of the whole system is improved.

[0015] 3、In the present application, through the setting of the cooling assembly, the heat in the motor is directly absorbed and transferred to the spiral heat sink, so that the motor is cooled, and through the setting of the air-cooled flow guide assembly, the motor is forcibly air-cooled on one hand, and the spiral heat sink is cooled on the other hand, so that the cooling efficiency is improved, the reliability of the motor working in a high temperature environment is improved, and the overload caused by overheating of the motor is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0017] Figure 1 It is a schematic diagram of the whole structure in the present application; Figure 2 This is a cross-sectional three-dimensional structural schematic diagram of the present invention; Figure 3 This is a cross-sectional view of the liquid storage tank, cooling assembly, and air-cooled flow guide assembly used in this invention. Figure 4 This is a cross-sectional structural diagram showing the cooperation of the motor body, cooling assembly, and air-cooled airflow guide assembly in this invention; Figure 5 This is a cross-sectional view of the cooling component and the air-cooled airflow guide component in this invention. Figure 6 This is a cross-sectional view of the cooling component and the air-cooled airflow guide component from another angle in this invention. Figure 7 This is a cross-sectional view of the conveying section in this invention.

[0018] In the diagram: 1. Motor housing; 2. Motor body; 3. Mounting housing; 4. Temperature sensor; 5. Liquid storage tank; 6. Cavity; 7. Spiral heat sink; 8. Spiral heat pipe; 9. Return tee; 901. Water inlet; 902. Water outlet; 903. Drainage end; 904. Liquid inlet; 10. Control valve; 11. Conveying cylinder; 12. Water delivery frame; 13. Input pipe; 14. Conveying impeller; 15. Driving helical gear; 16. Driven helical gear; 17. Intermediate helical gear; 18. Fan; 19. Air guide shroud; 20. Flow guide channel; 21. Connecting channel; 22. Air supply duct; 23. Air supply channel; 24. Dust cover; 25. Dustproof net. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1 to 7 As shown, this embodiment proposes an energy-saving motor with overload protection function, including a motor housing 1, a motor body 2 installed inside the motor housing 1, and also including a mounting shell 3, a liquid storage tank 5, a cooling component and an air-cooling guide component. The mounting shell 3 is fixedly installed at the tail of the motor housing 1. A temperature sensor 4 is fixedly installed inside the motor housing 1. The liquid storage tank 5 is fixedly installed outside the motor housing 1. The liquid storage tank 5 has a cavity 6 for storing coolant inside. Several spiral heat sinks 7 are arranged in a circumferential shape at equal angles inside the liquid storage tank 5. The side of each spiral heat sink 7 closest to the liquid storage tank 5 is located inside the cavity 6.

[0021] Specifically, during motor operation, temperature sensor 4 is activated to monitor the temperature of motor body 2 in real time. When the temperature of motor body 2 exceeds the rated temperature range, the power is automatically cut off to prevent overheating. As motor body 2 operates, it drives the cooling and air-cooling components. Through the air-cooling guide component, while the motor body 2 is cooled by airflow, the coolant reservoir 5 is simultaneously ventilated. Air passes through the reservoir 5, and the spiral heat sink 7 provides a larger contact area with the airflow. The airflow passes through several spiral heat sinks 7, carrying away the coolant inside the reservoir 5, thus maintaining the cooling effect of the cooling components on motor body 2 and further improving the heat dissipation efficiency.

[0022] like Figure 3 As shown, the cooling assembly is installed inside the motor housing 1 to cool the motor body 2. The cooling assembly includes a spiral heat pipe 8, a return tee 9, a control valve 10, and a conveying section. The spiral heat pipe 8 is fixedly installed inside the motor housing 1 and is located outside the motor body 2 and in contact with the motor body 2. The return tee 9 includes an inlet end 901, an outlet end 902, and a drain end 903. The inlet end 901 of the return tee 9 is connected to the output end of the spiral heat pipe 8, and the outlet end 902 of the return tee 9 is connected to the input end of the liquid storage tank 5. The liquid storage tank 5 is provided with an inlet end 904 at the top. The drain end 903, the outlet end 902, and the inlet end 904 are all fixedly installed with control valves 10. The conveying section is installed on the mounting housing 3 to control the flow of coolant in the spiral heat pipe 8.

[0023] Among them, the control valve 10 of the water outlet 902 is normally open, while the control valves 10 of the liquid discharge end 903 and the liquid inlet end 904 are normally closed.

[0024] Specifically, as the coolant flows through the spiral heat pipe 8, it enters the return tee 9 through the inlet 901 and then flows into the reservoir 5 through the outlet 902, thus completing the circulation. The coolant in the reservoir 5 will dissipate heat under the action of the spiral heat sink 7.

[0025] When the coolant needs to be replaced, first connect the container for receiving waste liquid to the drain end 903 of the return tee 9. Then close the control valve 10 of the outlet end 902 and open the control valves 10 of the drain end 903 and the inlet end 904. At this time, first drain all the coolant inside the reservoir 5, then inject clean water into the reservoir 5. At the same time, turn on the motor to allow the clean water to circulate in the spiral heat conduction tube 8 to remove the internal dirt. After the water discharged through the drain end 903 of the return tee 9 becomes clear, new coolant can be added to the reservoir 5. At the same time, close the control valve 10 of the drain end 903 and open the control valve 10 of the outlet end 902. Start the motor during the liquid addition process to ensure that the new coolant can smoothly fill the entire circulation system and finally fill the cavity 6 inside the reservoir 5. Then close the control valve 10 of the inlet end 904.

[0026] like Figure 6 , Figure 7 As shown above, the conveying unit includes a conveying cylinder 11, a water delivery frame 12, a conveying impeller 14, and a driving component. The conveying cylinder 11 is fixedly installed on the mounting housing 3. The output end of the conveying cylinder 11 is connected to the input end of the spiral heat-conducting pipe 8. The water delivery frame 12 is fixedly installed at the tail of the conveying cylinder 11. The output end of the water delivery frame 12 is connected to the conveying cylinder 11. The input end of the water delivery frame 12 is connected to the output end of the liquid storage cylinder 5 through the input pipe 13. The conveying impeller 14 is rotatably installed inside the conveying cylinder 11. The driving component is installed on the mounting housing 3 and is used to drive the conveying impeller 14 to rotate.

[0027] Specifically, when it is necessary to control the flow of coolant in the spiral heat pipe 8, as the motor operates, the motor body 2 drives the conveying impeller 14 to rotate through the drive component. The rotation of the conveying impeller 14 causes the coolant to flow in the spiral heat pipe 8. At this time, the coolant enters the input pipe 13 from the output end of the storage tank 5. The coolant then enters the water delivery frame 12 through the input pipe 13, and then enters the conveying cylinder 11 through the water delivery frame 12. Under the continuous rotation of the conveying impeller 14, it enters the spiral heat pipe 8, thus entering the circulation.

[0028] like Figure 6 , Figure 7 As shown above, the driving component includes a driving helical gear 15, a driven helical gear 16, and an intermediate helical gear 17. The driving helical gear 15 is fixedly installed at the tail of the output shaft of the motor body 2. The driven helical gear 16 is rotatably installed on the mounting housing 3. The intermediate helical gear 17 is rotatably installed at the end of the conveying cylinder 11. The intermediate helical gear 17 meshes with the driving helical gear 15 and the driven helical gear 16 respectively. The water delivery frame 12 is located between the conveying impeller 14 and the intermediate helical gear 17 at the position where it communicates with the conveying cylinder 11.

[0029] Specifically, as the motor runs, the motor body 2 drives the output shaft to rotate, which in turn drives the active helical gear 15 to rotate. This drives the intermediate helical gear 17 to rotate, which in turn drives the driven helical gear 16 to rotate. As the intermediate helical gear 17 rotates, it drives the conveying impeller 14 to rotate, thereby allowing the coolant to flow.

[0030] like Figures 4 to 6 As shown, the air-cooled airflow guide assembly is installed on the mounting housing 3 to cool the motor body 2 and dissipate heat from the coolant in the liquid storage tank 5. The air-cooled airflow guide assembly includes a fan 18, an air guide shroud 19, airflow channels 20, and a connecting channel 21. The fan 18 is rotatably installed outside the mounting housing 3 and is fixedly connected to the driven helical gear 16. The air guide shroud 19 is fixedly installed outside the motor housing 1 and is located at a position away from the mounting housing 3. The interior of the air guide shroud 19 is hollow and has several airflow channels 20 circumferentially and at equal angles. Several connecting channels 21 circumferentially and at equal angles are also provided on the motor housing 1. The airflow channels 20 and the connecting channels 21 correspond to each other and are connected. The assembly also includes an air supply duct 22, which is fixedly installed at the end of the liquid storage tank 5. An air supply channel 23 is provided at the end of the air supply duct 22 near the liquid storage tank 5, and the air supply duct 22 is connected to the air guide shroud 19.

[0031] Specifically, as the driven helical gear 16 rotates, it can also drive the fan 18 to rotate synchronously, thereby sending outside air into the mounting housing 3, and then sending the airflow into the motor housing 1, thereby removing the heat from the motor body 2. The airflow entering the motor housing 1 will enter the air guide shroud 19 through the connecting groove 21 and the guide groove 20. The airflow entering the air guide shroud 19 will pass through the air delivery groove 23 on the air delivery duct 22 and be discharged through the middle of the liquid storage tank 5. Thus, this part of the airflow will also remove the heat transferred by the spiral heat sink 7, which will facilitate the heat dissipation of the motor body 2 and further reduce the temperature of the coolant, thereby improving the overall cooling effect of the motor body 2.

[0032] Furthermore, to prevent external dust from entering the motor, a dust cover 24 is also included. The dust cover 24 is fixedly installed on the mounting housing 3, and the fan 18 is located inside the dust cover 24. A dust filter 25 is fixedly installed on the dust cover 24, and a layer for filling the filter can also be set in the dust filter 25, thereby preventing external dust and other impurities from entering the motor housing 1 and ensuring the stability of the motor body 2 during operation.

[0033] The working principle or usage process of this application is as follows: During motor operation, temperature sensor 4 is activated to sense the temperature of motor body 2 in real time. When the temperature of motor body 2 exceeds the rated temperature range, it will take effect in time and automatically cut off the power supply to prevent the motor from overheating. As motor body 2 rotates, it drives the output shaft to rotate, which in turn drives the active helical gear 15 to rotate. The active helical gear 15 drives the intermediate helical gear 17 to rotate, which in turn drives the driven helical gear 16 to rotate. As the intermediate helical gear 17 rotates, it drives the conveyor impeller 14 to rotate.

[0034] The rotation of the conveyor impeller 14 causes the coolant to flow inside the spiral heat-conducting pipe 8. At this time, the coolant enters the input pipe 13 from the output end of the storage tank 5. Then, the coolant enters the water supply frame 12 through the input pipe 13, and then enters the conveyor cylinder 11 through the water supply frame 12. Under the continuous rotation of the conveyor impeller 14, it enters the spiral heat-conducting pipe 8, thus entering circulation and carrying away the heat of the motor body 2. As the coolant flows in the spiral heat-conducting pipe 8, the coolant enters the return tee 9 through the inlet end 901, and then is discharged into the storage tank 5 from the outlet end 902, thus completing the circulation. The coolant entering the storage tank 5 will dissipate the heat in the coolant under the action of the spiral heat sink 7.

[0035] As the driven helical gear 16 rotates, it can also drive the fan 18 to rotate synchronously, thereby sending outside air into the mounting housing 3, and then sending the airflow into the motor housing 1. The dust cover 24 and dust net 25 can also prevent dust and other impurities from entering the motor housing 1. The airflow can carry away the heat of the motor body 2. The airflow entering the motor housing 1 will enter the air guide shroud 19 through the connecting groove 21 and the guide groove 20. The airflow entering the air guide shroud 19 will pass through the air delivery groove 23 on the air delivery duct 22 and be discharged through the middle of the liquid storage tank 5. With the spiral heat sink 7, the contact area with the airflow is larger. The airflow passes through several spiral heat sinks 7, which can carry away the temperature of the coolant in the liquid storage tank 5, which is conducive to maintaining the cooling effect of the cooling components on the motor body 2, thereby improving the overall cooling and heat dissipation effect of the motor body 2.

[0036] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An energy-saving motor with overload protection function, comprising a motor shell (1), a motor body (2) is installed inside the motor shell (1), characterized in that, Also include: The installation shell (3) is fixedly installed at the tail of the motor shell (1); Wherein, the motor shell (1) internally fixedly installs temperature sensor (4); Liquid storage cylinder (5), the liquid storage cylinder (5) is fixedly installed outside the motor shell (1), the cavity (6) for storing coolant is provided inside the liquid storage cylinder (5); Cooling assembly, the cooling assembly is installed inside the motor shell (1), is used for cooling the motor body (2); Air-cooled flow guide assembly, the air-cooled flow guide assembly is installed on the installation shell (3), is used for cooling the motor body (2), and the coolant in the liquid storage cylinder (5) is heat dissipated.

2. The energy-saving motor with overload protection function according to claim 1, characterized in that, The inside of the liquid storage cylinder (5) is circumferentially arranged at equal angles with a plurality of spiral cooling fins (7), and each spiral cooling fin (7) near one side of the liquid storage cylinder (5) is located inside the cavity (6).

3. The energy-saving motor with overload protection function according to claim 2, characterized in that, The cooling assembly comprises: Spiral heat pipe (8), the spiral heat pipe (8) is fixedly installed inside the motor shell (1), and the spiral heat pipe (8) is located outside the motor body (2) and contacts the motor body (2); The return tee (9) includes a water inlet end (901), a water outlet end (902) and a liquid discharge end (903), the water inlet end (901) of the return tee (9) is communicated with the output end of the spiral heat pipe (8), the water outlet end (902) of the return tee (9) is communicated with the input end of the liquid storage cylinder (5); Wherein, the liquid storage cylinder (5) top is provided with liquid inlet end (904); Control valve (10), the liquid discharge end (903), the water outlet end (902) and the liquid inlet end (904) are fixedly installed with the control valve (10); Conveying part, the conveying part is installed on the installation shell (3), is used for controlling the flow of coolant in the spiral heat pipe (8).

4. The energy-saving motor with overload protection function according to claim 3, characterized in that, The conveying part comprises: Conveying cylinder (11), the conveying cylinder (11) is fixedly installed on the installation shell (3), and the output end of the conveying cylinder (11) is communicated with the input end of the spiral heat pipe (8); Water supply rack (12), the water supply rack (12) is fixedly installed at the tail of the conveying cylinder (11), the output end of the water supply rack (12) is communicated with the conveying cylinder (11), and the input end of the water supply rack (12) is communicated with the output end of the liquid storage cylinder (5) through the input pipe (13); Conveying impeller (14), the conveying impeller (14) is rotatably installed inside the conveying cylinder (11); Driving member, the driving member is installed on the installation shell (3), is used for driving the conveying impeller (14) to rotate.

5. The energy-saving motor with overload protection function according to claim 4, characterized in that, The driving member comprises a driving bevel gear (15), a driven bevel gear (16) and an intermediate bevel gear (17), the driving bevel gear (15) is fixedly installed at the tail of the output shaft of the motor body (2), the driven bevel gear (16) is rotatably installed on the mounting shell (3), and the intermediate bevel gear (17) is rotatably installed at the end of the conveying cylinder (11), wherein the intermediate bevel gear (17) is engaged with the driving bevel gear (15) and the driven bevel gear (16) respectively. The position where the water feeding frame (12) communicates with the conveying cylinder (11) is between the conveying impeller (14) and the intermediate bevel gear (17).

6. The energy-saving motor with overload protection function according to claim 5, characterized in that, The air-cooled flow guide assembly comprises: A fan (18) rotatably installed outside the mounting shell (3), the fan (18) is fixedly connected with the driven bevel gear (16); An air guide cover (19) fixedly installed outside the motor shell (1), the air guide cover (19) is located at the position of the motor shell (1) away from the mounting shell (3), and the air guide cover (19) is internally provided as a hollow structure; A plurality of flow guide grooves (20) and a plurality of communication grooves (21) are circumferentially and equally angularly arranged in the air guide cover (19) and the motor shell (1), respectively, and the plurality of flow guide grooves (20) and the plurality of communication grooves (21) correspond to each other and communicate with each other.

7. The energy-saving motor with overload protection function according to claim 6, characterized in that, Further comprising a air feeding cylinder (22) fixedly installed at the end of the liquid storage cylinder (5), the air feeding cylinder (22) is provided with an air feeding groove (23) at one end close to the liquid storage cylinder (5), and the air feeding cylinder (22) communicates with the air guide cover (19).

8. The energy-saving motor with overload protection function according to claim 7, characterized in that, Further comprising a dust cover (24) fixedly installed on the mounting shell (3), the fan (18) is located in the dust cover (24), and the dust cover (24) is fixedly provided with a dust screen (25).

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