Bearing oil cooling type low-noise motor

Abstract

The invention discloses a bearing oil cooling type low-noise motor, and relates to the technical field of motors. Comprising a motor shell, the two sides of the motor shell are provided with a liquid inlet and a liquid outlet respectively, the liquid inlet and the liquid outlet are connected through a detachable pipeline, an outer sleeve and an inner sleeve are sequentially arranged in the motor shell, two sets of pushing plates are installed on the outer sleeve in a sliding mode, and a cooling pipe, a telescopic spring and a filter screen are installed between the two sets of pushing plates; a plurality of inner electrode rings are sequentially arranged on the circumference of the outer sleeve, a spraying barrel is mounted between every two adjacent inner electrode rings, a piezoelectric ceramic plate is mounted in each spraying barrel, a stator is mounted in the inner sleeve, a rotor is mounted in the stator, an output shaft is arranged in the rotor, and cooling fins are arranged on the inner sleeve. Heat dissipation is carried out outside the cooling fins through cooling liquid, heat dissipation is carried out inside the cooling fins through air, cooling is carried out through water cooling and air cooling at the same time, and stable operation of the motor is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and specifically to a bearing oil-cooled low-noise motor. Background Art

[0002] ‌A motor is a device that converts electrical energy into mechanical energy. It uses an energized coil (i.e., a stator winding) to generate a rotating magnetic field and acts on a rotor (such as a squirrel-cage closed aluminum frame) to form a magnetoelectric dynamic rotating torque. A motor mainly consists of a stator and a rotor. The direction of the force on the energized wire in the magnetic field is related to the direction of the current and the direction of the magnetic induction line (magnetic field direction).

[0003] The existing motors mainly have the following problems: (1) The cooling method is single and cannot meet the requirements. (2) Impurities are generated after long-term use of the coolant, which is extremely likely to cause blockage of the motor. Summary of the Invention

[0004] The purpose of the present invention is to provide a bearing oil-cooled low-noise motor to solve the problems raised in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A bearing oil-cooled low-noise motor, including a motor housing, an inlet and an outlet are respectively arranged on both sides of the motor housing, the inlet and the outlet are connected by a detachable pipeline, an outer sleeve and an inner sleeve are sequentially arranged inside the motor housing, two sets of push plates are slidably installed on the outer sleeve, a cooling pipe, a telescopic spring and a filter screen are installed between the two sets of push plates, cooling wires are arranged inside the cooling pipe, a number of inner electrode rings are sequentially arranged on the circumference of the outer sleeve, a spray cylinder is installed between two adjacent inner electrode rings, a piezoelectric ceramic plate is installed inside the spray cylinder, a stator is installed inside the inner sleeve, a rotor is installed inside the stator, an output shaft is arranged inside the rotor, and a number of shock-absorbing springs are connected to the bottom of the motor housing, and a bottom plate is jointly arranged on the number of shock-absorbing springs.

[0006] Both sets of push plates form a sliding seal connection between the motor housing and the outer sleeve. A cooling and filtering chamber is formed between the inner wall of the motor housing, one side of the push plate and the outer wall of the outer sleeve. A pressurizing chamber is formed between the inner wall of the motor housing, the other side of the push plate and the outer wall of the outer sleeve. The cooling and filtering chamber is communicated with the inlet, the outlet is communicated with the inside of the outer sleeve, and a communication port is arranged on the push plate; A number of ribs are arranged on the filter screen in a staggered manner. The ribs are hollow inside, and a number of the ribs are communicated with each other. A number of the ribs are all communicated with the communication port. The ribs are made of elastic material, and a number of air jet ports are arranged on the ribs. One-way valves are installed inside a number of the air jet ports. Refrigeration wires are arranged inside the ribs. The elastic ribs made of elastic material will improve the elasticity of the filter screen and prevent the filter screen from deforming and cracking.

[0007] A disc plate is provided in the middle of the outer sleeve. The disc plate is located between two push plates. The disc plate and the two push plates are sequentially connected through a telescopic spring, a cooling pipe and a filter screen. The telescopic spring, the cooling pipe and the filter screen are all sleeved on the outer sleeve; The telescopic spring is provided with an insulating outer skin and is electrically connected to the control system. The cooling pipe is arranged on the telescopic spring and is a metal hose.

[0008] An outer electrode ring is provided on the inner wall of the motor housing. A coil is embedded in the motor housing. The coil is located outside the outer electrode ring. The inner electrode ring, the outer electrode ring and the coil are all electrically connected to the control system; A coolant is provided between the inner sleeve and the outer sleeve. The coolant has electrical conductivity and contacts the inner electrode ring and the outer electrode ring.

[0009] The spray cylinder is installed on the outer sleeve. A positive plate, a piezoelectric ceramic plate and a negative plate are sequentially arranged in the spray cylinder. A plurality of small holes are provided in the middle of the piezoelectric ceramic plate. The plurality of small holes are conical to realize the one-way flow of the coolant. The piezoelectric ceramic plate is made of piezoelectric ceramic material. The positive plate and the negative plate are both electrically connected to the control system.

[0010] The longitudinal section of the inner sleeve is conical. The conical inner sleeve facilitates the diversion of the coolant and facilitates the discharge of the coolant from the liquid discharge port. A plurality of heat dissipation fins are arranged on the outer side of the inner sleeve. A plurality of air ducts are arranged inside the inner sleeve. The plurality of heat dissipation fins are made of heat-conducting material, and a detection plate is arranged on each heat dissipation fin; An air inlet and an air outlet for gas flow are provided in the pressurization chamber. The air inlet and the air outlet are both arranged on the motor housing. The motor housing at both ends of the inner sleeve is respectively provided with an air inlet cover and an air outlet cover. The air inlet cover and the air outlet cover are both communicated with a plurality of air ducts. The air inlet cover is connected to the air outlet through a pipeline. A screen is arranged in the air inlet cover and the air inlet, and the screen filters the air.

[0011] A plurality of groups of semiconductors are arranged on the refrigerating wire, the cooling wire and the detection plate. Each group of semiconductors includes an N-type semiconductor, a P-type semiconductor and a metal plate. One end of the N-type semiconductor and the P-type semiconductor is connected to the metal plate. The N-type semiconductor and the P-type semiconductor are both electrically connected to the control system through wires; The N-type semiconductor, the P-type semiconductor and the metal plate on the refrigerating wire and the cooling wire are the refrigerating ends of the Peltier effect. The N-type semiconductor, the P-type semiconductor and the metal plate on the detection plate are the hot ends of the Seebeck effect.

[0012] The inner sleeve is made of magnetic shielding material. The stator is installed on the inner wall of the inner sleeve. The output shaft is rotatably installed on the motor housing, and one end of the output shaft penetrates through the motor housing.

[0013] Solenoid valves and flow meters are installed in the air inlet, exhaust port, communication port, liquid inlet and liquid outlet, and the solenoid valves and flow meters are electrically connected to the control system.

[0014] A control box is provided on the motor housing, and a control system is provided inside the control box.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Cooling is carried out simultaneously by water cooling and air cooling to ensure stable operation of the motor. The control system applies a pulsed current to the piezoelectric ceramic plate through the positive plate and the negative plate, causing the piezoelectric ceramic plate to vibrate continuously. The piezoelectric ceramic plate drives the coolant to vibrate rapidly, and then the coolant passes through a number of small holes and is sprayed in a mist shape on the radiator fins. The coolant cools the radiator fins, inner sleeve, rotor, stator and output shaft; air enters the air duct in the inner sleeve through the air inlet hood, and heat exchange takes place while the air flows in the air duct. The air after heat exchange enters the exhaust hood and is discharged to the external atmosphere through the exhaust hood. Therefore, the outside of the radiator fins is cooled by the coolant, and the inside of the radiator fins is cooled by the air, so as to improve the heat dissipation effect of the radiator fins. Cooling is carried out simultaneously by water cooling and air cooling to ensure stable operation of the motor.

[0016] 2. Self-cleaning treatment of the filter screen to prevent impurities from clogging the motor. While the air in the cooling and filtering chamber is inhaled and discharged, the filter screen is rinsed; the air in the rib pushes open the one-way valve in the air jet port, and the air in the rib is sprayed on the filter screen from the air jet port, and the air in the rib cleans the filter screen again, forming a composite cleaning treatment of the filter screen, improving the cleaning effect of the filter screen to remove most of the impurities on the filter screen and prevent impurities from clogging the motor.

[0017] 3. Intelligent temperature monitoring and dual cooling treatment to ensure that the motor is in the best temperature state. The hot ends of the N-type semiconductor, P-type semiconductor and metal plate on the detection board, the cold ends are not described. The hot ends and cold ends generate current through the Seebeck effect and transmit it into the control system. The control system detects the current generated by the Seebeck effect, and then obtains the temperature of the radiator fins to realize the temperature monitoring of the rotor and stator. The control system flexibly adjusts the refrigeration effect of the refrigeration end according to the temperature data to form intelligent temperature monitoring of the motor; the refrigeration end in the rib performs primary refrigeration on the shunted coolant. After that, the coolant contacts the cooling pipe, and the refrigeration end in the cooling pipe performs secondary refrigeration on the coolant, forming a dual cooling treatment to quickly cool the coolant to the set temperature. Description of the Drawings

[0018] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the structural schematic diagram of the outer sleeve in the present invention; Figure 3 is the structural schematic diagram of the filter screen in the present invention; Figure 4 is the structural schematic diagram of the output shaft in the present invention; Figure 5 is Figure 4 the partial enlarged view of area A in; Figure 6 is the structural schematic diagram of the telescopic spring in the present invention; Figure 7 is the structural schematic diagram of the inner sleeve in the present invention; Figure 8 is the structural schematic diagram of the cooling pipe in the present invention; Figure 9 is Figure 8 the partial enlarged view of area B in; Figure 10 is the structural schematic diagram of the piezoelectric ceramic plate in the present invention.

[0019] In the figure: 1. Control box; 11. Motor housing; 111. Liquid inlet; 112. Liquid outlet; 113. Outer electrode ring; 114. Air inlet hood; 115. Exhaust hood; 116. Coil; 12. Outer sleeve; 121. Inner electrode ring; 122. Air inlet; 123. Exhaust port; 13. Inner sleeve; 131. Detection plate; 14. Spray cylinder; 141. Piezoelectric ceramic plate; 142. Positive plate; 143. Negative plate; 15. Stator; 16. Rotor; 17. Output shaft; 2. Push plate; 201. Communication port; 21. Cooling pipe; 211. Cooling wire; 22. Telescopic spring; 23. Filter screen; 231. Rib; 3. Shock-absorbing spring; 31. Bottom plate. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment: As Figures 1 - 10As shown in the figure, the present invention provides a technical solution for a bearing oil-cooled low-noise motor, including a motor housing 11. An inlet 111 and an outlet 112 are respectively arranged on both sides of the motor housing 11. The inlet 111 and the outlet 112 are connected by a detachable pipeline. An outer sleeve 12 and an inner sleeve 13 are sequentially arranged inside the motor housing 11. Two sets of push plates 2 are slidably installed on the outer sleeve 12. A cooling pipe 21, a telescopic spring 22 and a filter screen 23 are installed between the two sets of push plates 2. A cooling wire 211 is arranged inside the cooling pipe 21. A number of inner electrode rings 121 are sequentially arranged on the circumference of the outer sleeve 12. A spray cylinder 14 is installed between two adjacent inner electrode rings 121. A piezoelectric ceramic plate 141 is installed inside the spray cylinder 14. A stator 15 is installed inside the inner sleeve 13. A rotor 16 is installed inside the stator 15. An output shaft 17 is arranged inside the rotor 16. The bottom of the motor housing 11 is connected with a number of shock-absorbing springs 3. A bottom plate 31 is jointly arranged on the number of shock-absorbing springs 3. A control box 1 is arranged on the motor housing 11. A control system is arranged inside the control box 1. The inner sleeve 13 is made of a magnetic shielding material. The stator 15 is installed on the inner wall of the inner sleeve 13. The output shaft 17 is rotatably installed on the motor housing 11. One end of the output shaft 17 passes through the motor housing 11.

[0022] Both sets of push plates 2 form a sliding seal connection between the motor housing 11 and the outer sleeve 12. A cooling and filtering chamber is formed between the inner wall of the motor housing 11, one side of the push plate 2 and the outer wall of the outer sleeve 12. A pressurizing chamber is formed between the inner wall of the motor housing 11, the other side of the push plate 2 and the outer wall of the outer sleeve 12. The cooling and filtering chamber is communicated with the inlet 111. The outlet 112 is communicated with the inside of the outer sleeve 12. A communication port 201 is arranged on the push plate 2; a number of ribs 231 are arranged in a staggered manner on the filter screen 23. The inside of the ribs 231 is hollow. A number of ribs 231 are communicated with each other. A number of ribs 231 are all communicated with the communication port 201. The ribs 231 are made of an elastic material. A number of air jet ports are arranged on the ribs 231. One-way valves are installed in a number of air jet ports. A refrigeration wire is arranged inside the ribs 231. The elastic ribs 231 will improve the elasticity of the filter screen 23 and prevent the filter screen 23 from deforming and cracking.

[0023] When the motor works for a set time, the filter screen 23 needs to be cleaned by jetting air to ensure the normal filtering effect of the filter screen 23. At this time, the staff removes the pipeline connecting the inlet 111 and the outlet 112 and closes the solenoid valve inside the outlet 112. At this time, the cooling and filtering chamber is communicated with the external air through the inlet 111, and the circulation of the coolant cannot be realized. The coolant deposits at the position between the inner sleeve 13 and the outer sleeve 12; The control system controls the two sets of telescopic springs 22 to be energized, opens the solenoid valve in the air inlet 122, closes the solenoid valve in the air outlet 123 and closes the solenoid valve in the communication port 201. The left telescopic spring 22 pulls the left push plate 2 to move to the right, and the right telescopic spring 22 pulls the right push plate 2 to move to the left, so that the volume of the cooling and filtering chamber gradually decreases and the volume of the pressurizing chamber gradually increases. External air is sucked into the pressurizing chamber through the air inlet 122, and the air in the cooling and filtering chamber is discharged to the external atmosphere through the liquid inlet 111; After the two sets of telescopic springs 22 are energized for a set time, the control system cuts off the power supply of the two sets of telescopic springs 22, closes the solenoid valve in the air inlet 122, closes the solenoid valve in the air outlet 123 and opens the solenoid valve in the communication port 201. The left telescopic spring 22 pushes the left push plate 2 to move to the left, and the right telescopic spring 22 pushes the right push plate 2 to move to the right, so that the volume of the cooling and filtering chamber gradually increases and the volume of the pressurizing chamber gradually decreases. The air pressure in the pressurizing chamber gradually increases. The air in the pressurizing chamber transports the air into the rib 231 through the communication port 201, and external air is sucked into the cooling and filtering chamber through the liquid inlet 111; As the control system continuously energizes and de-energizes the two sets of telescopic springs 22, more and more air is transported into the rib 231 through the pressurizing chamber, and the air in the cooling and filtering chamber is continuously inhaled and discharged through the liquid inlet 111. While the air in the cooling and filtering chamber is inhaled and discharged, the filter net 23 is rinsed; and the air in the rib 231 pushes open the one-way valve in the jet port, and the air in the rib 231 is sprayed on the filter net 23 from the jet port. The air in the rib 231 cleans the filter net 23 again, forming a composite cleaning process for the filter net 23, improving the cleaning effect of the filter net 23 to remove most of the impurities on the filter net 23, and the removed impurities fall into the cooling and filtering chamber.

[0024] A disc plate is arranged in the middle of the outer sleeve 12. The disc plate is located between the two push plates 2. The disc plate and the two push plates 2 are sequentially connected through the telescopic spring 22, the cooling pipe 21 and the filter net 23. The telescopic spring 22, the cooling pipe 21 and the filter net 23 are all sleeved on the outer sleeve 12; During the operation of the motor, the telescopic spring 22 is continuously energized and de-energized, and the telescopic spring 22 continuously contracts and elongates. The two sets of telescopic springs 22 synchronously drive the two push plates 2 to reciprocate. Since the cooling pipe 21 is a metal hose, the cooling pipe 21 contracts and elongates following the telescopic spring 22 to adapt to the volume change of the cooling and filtering chamber, so as to ensure that after the volume of the cooling and filtering chamber changes, it can still cool or lower the temperature of each position of the cooling and filtering chamber; After the retractable spring 22 is powered off, the retractable spring 22 pushes the push plate 2 away from the disc plate, and the push plate 2 pulls the filter net 23 to gradually unfold; after the retractable spring 22 is powered on, the retractable spring 22 pulls the push plate 2 close to the disc plate, and the push plate 2 pushes the filter net 23 to gradually contract; through the continuous power-on and power-off of the retractable spring 22, the two groups of push plates 2 continuously move back and forth, and the reciprocating movement of the two groups of push plates 2 drives the filter net 23 to vibrate rapidly, avoiding the deposition of impurities on the filter net 23 and facilitating the coolant to pass through the filter net 23, improving the filtering effect of the filter net 23.

[0025] The retractable spring 22 is provided with an insulating outer skin, the retractable spring 22 is electrically connected to the control system, the cooling pipe 21 is arranged on the retractable spring 22, and the cooling pipe 21 is a metal hose.

[0026] An outer electrode ring 113 is arranged on the inner wall of the motor housing 11, a coil 116 is embedded in the motor housing 11, the coil 116 is located outside the outer electrode ring 113, and the inner electrode ring 121, the outer electrode ring 113 and the coil 116 are all electrically connected to the control system; A coolant is arranged between the inner sleeve 13 and the outer sleeve 12, the coolant has conductivity, and the coolant contacts the inner electrode ring 121 and the outer electrode ring 113.

[0027] After the filter net 23 undergoes jet cleaning treatment, most of the impurities on the filter net 23 are removed. At this time, a certain amount of impurities will be deposited in the cooling and filtering chamber, and the remaining impurities on the cooling and filtering chamber and the filter net 23 need to be cleaned again. At this time, the staff removes the pipeline between the liquid inlet 111 and the liquid outlet 112 and closes the liquid outlet 112 to prevent the coolant from flowing out; the control system connects the outer electrode ring 113 to the negative pole of the power supply and sequentially connects multiple groups of inner electrode rings 121 to the positive pole of the power supply, and energizes the coil 116. The magnetic field generated by the coil 116 is parallel to its axis. The coolant is located between the inner electrode ring 121 and the outer electrode ring 113, and the coolant has conductivity, so there is an electric current flowing through the coolant. This current flows from the inner electrode ring 121 to the outer electrode ring 113. Affected by the magnetic field of the coil 116 and the Lorentz force, the coolant flows annularly along the inner wall of the cooling and filtering chamber, and the annularly flowing coolant continuously contacts the inside of the cooling and filtering chamber to clean the cooling and filtering chamber.

[0028] When the inner electrode ring 121 and the outer electrode ring 113 are powered on for a set time, the staff opens the solenoid valves in the liquid inlet 111 and the liquid outlet 112 so that the impurities and the coolant are discharged from the liquid outlet 112. The staff fills new coolant from the liquid inlet 111 to achieve the cleaning treatment of the filter net 23 and the cooling and filtering chamber. After that, the staff closes the solenoid valve in the liquid outlet 112 through the control system.

[0029] It should be noted that since multiple groups of inner electrode rings 121 are successively connected to the positive electrode of the power supply, the coolant in the cooling and filtering chamber flows in a circular pattern successively, forming continuous fluctuations of the coolant, thereby forming an impact and enhancing the cleaning effect of the coolant on the cooling and filtering chamber and the filter screen 23.

[0030] The spray cylinder 14 is installed on the outer sleeve 12. Inside the spray cylinder 14, a positive electrode plate 142, a piezoelectric ceramic plate 141, and a negative electrode plate 143 are successively arranged. Several small holes are arranged in the middle of the piezoelectric ceramic plate 141. The several small holes are conical to achieve the unidirectional flow of the coolant. The piezoelectric ceramic plate 141 is made of piezoelectric ceramic material. The positive electrode plate 142 and the negative electrode plate 143 are both electrically connected to the control system.

[0031] The longitudinal section of the inner sleeve 13 is conical. The conical inner sleeve 13 facilitates the diversion of the coolant and facilitates the discharge of the coolant from the drain port 112. Several heat dissipation fins are arranged on the outer side of the inner sleeve 13, and several air ducts are arranged inside the inner sleeve 13. The several heat dissipation fins are made of heat-conducting material, and a detection plate 131 is arranged on each heat dissipation fin; an air inlet 122 and an air outlet 123 for the flow of gas are arranged in the pressurization chamber. The air inlet 122 and the air outlet 123 are both arranged on the motor housing 11. The motor housing 11 at both ends of the inner sleeve 13 is respectively provided with an air inlet cover 114 and an air outlet cover 115. The air inlet cover 114 and the air outlet cover 115 are both communicated with the several air ducts. The air inlet cover 114 is connected to the air outlet 123 through a pipeline. Screens are arranged in the air inlet cover 114 and the air inlet 122 to filter the air. Electromagnetic valves and flow meters are installed in the air inlet 122, the air outlet 123, the communication port 201, the liquid inlet 111, and the drain port 112. The electromagnetic valves and the flow meters are electrically connected to the control system.

[0032] During the operation of the motor, the control system connects the N-type semiconductor and the P-type semiconductor on the detection plate 131 to the circuit. The N-type semiconductor, the P-type semiconductor, and the hot end of the Seebeck effect of the metal plate on the detection plate 131 are not described for the cold end. A current is generated through the Seebeck effect between the hot end and the cold end and transmitted into the control system. The control system detects the current generated by the Seebeck effect, thereby obtaining the temperature of the heat dissipation fin to achieve the temperature monitoring of the rotor 16 and the stator 15. The control system flexibly adjusts the refrigeration effect of the refrigeration end according to the temperature data. Finally, the current generated by the Seebeck effect is processed by the control system and used for the refrigeration of the refrigeration end to reduce the energy consumption of the motor.

[0033] During the operation of the motor, the control system continuously powers on and off the telescopic springs 22. When the two sets of telescopic springs 22 are powered on, the control system simultaneously opens the solenoid valve in the air inlet 122 and closes the solenoid valve in the air outlet 123. The left telescopic spring 22 pulls the left push plate 2 to move to the right, and the right telescopic spring 22 pulls the right push plate 2 to move to the left, so that while the volume of the cooling and filtering chamber becomes smaller, the volume of the pressurizing chamber gradually becomes larger. At this time, external air is inhaled into the pressurizing chamber through the air inlet 122. After the two sets of telescopic springs 22 are powered off, the control closes the solenoid valve in the air inlet 122 and opens the solenoid valve in the air outlet 123. The left telescopic spring 22 pushes the left push plate 2 to move to the right, and the right telescopic spring 22 pushes the right push plate 2 to move to the left, so that while the volume of the cooling and filtering chamber becomes larger, the volume of the pressurizing chamber gradually becomes smaller, and the air pressure in the pressurizing chamber gradually becomes larger. The air enters the air inlet hood 114 through the air outlet 123, and the air enters the air duct in the inner sleeve 13 through the air inlet hood 114. The air exchanges heat while flowing in the air duct, and the heated air enters the exhaust hood 115 and is discharged to the external atmosphere through the exhaust hood 115. Therefore, the outside of the radiator is cooled by the coolant, and the inside of the radiator is cooled by the air to improve the heat dissipation effect of the radiator.

[0034] Multiple sets of semiconductors are provided on the refrigeration wire, the cooling wire 211 and the detection plate 131. Each set of semiconductors includes an N-type semiconductor, a P-type semiconductor and a metal plate. One end of the N-type semiconductor and the P-type semiconductor are both connected to the metal plate, and the N-type semiconductor and the P-type semiconductor are both electrically connected to the control system through wires. The N-type semiconductor, the P-type semiconductor and the metal plate on the refrigeration wire and the cooling wire 211 are the refrigeration ends of the Peltier effect, and the N-type semiconductor, the P-type semiconductor and the metal plate on the detection plate 131 are the heat ends of the Seebeck effect.

[0035] Working principle: During the operation of the motor, the control system continuously powers on and off the telescopic springs 22 and closes the solenoid valve in the communication port 201. After the two sets of telescopic springs 22 are powered off, the control system simultaneously opens the solenoid valves in the liquid inlet 111 and the liquid outlet 112. The two sets of telescopic springs 22 gradually become longer under the action of their own elastic forces. The left telescopic spring 22 pushes the left push plate 2 to move to the left, and the right telescopic spring 22 pushes the right push plate 2 to move to the right, so that the volume of the cooling and filtering chamber between the two push plates 2 gradually becomes larger. At this time, the coolant is inhaled into the cooling and filtering chamber through the chamber between the inner sleeve 13 and the outer sleeve 12, the liquid outlet 112, the pipeline and the liquid inlet 111.

[0036] When the coolant enters the cooling and filtering chamber, the flowmeter in the liquid inlet 111 feeds back the flow data to the control system. The control system energizes the telescopic spring 22, connects the positive plate 142 to the circuit and connects the negative plate 143 to the circuit. After the telescopic spring 22 is energized, the overall length of the telescopic spring 22 shortens. The left telescopic spring 22 pulls the left push plate 2 to move to the right, and the right telescopic spring 22 pulls the right push plate 2 to move to the left, so that the volume of the cooling and filtering chamber between the two groups of push plates 2 gradually becomes smaller, and the pressure of the coolant gradually increases. The coolant passes through the filter net 23 and enters the spray tube 14. The control system applies a pulsed current to the piezoelectric ceramic plate 141 through the positive plate 142 and the negative plate 143, so that the piezoelectric ceramic plate 141 continuously vibrates. The piezoelectric ceramic plate 141 drives the coolant to vibrate rapidly, and then the coolant passes through a number of small holes and is sprayed on the radiator in an aerosol form. The coolant cools the radiator, the inner sleeve 13, the rotor 16, the stator 15 and the output shaft 17. After the coolant exchanges heat with the radiator, it is located in the chamber between the inner sleeve 13 and the outer sleeve 12, and is sucked out from the drain port 112 next time.

[0037] After the coolant enters the liquid inlet 111, the flowmeter in the liquid inlet 111 feeds back the data to the control system. The control system energizes the N-type semiconductor and the P-type semiconductor on the refrigerating wire and the cooling wire 211. The N-type semiconductor, the P-type semiconductor and the metal plate on the refrigerating wire and the cooling wire 211 are the refrigerating ends of the Peltier effect. The ribs 231 on the filter net 23 divide the coolant, buffer the coolant and reduce the noise at the same time, and also facilitate cooling the divided coolant to improve the cooling effect. The refrigerating end in the rib 231 cools the divided coolant for the first time. After that, the coolant contacts the cooling pipe 21, and the refrigerating end in the cooling pipe 21 cools the coolant for the second time, so that the coolant is quickly cooled to the set temperature.

[0038] As the telescopic spring 22 is continuously energized and de-energized, a circulating flow of the coolant is formed, so that the cooled or refrigerated coolant continuously exchanges heat with the radiator, so as to reduce the temperatures of the rotor 16, the stator 15 and the output shaft 17 and ensure the normal operation of the motor.

[0039] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A bearing oil-cooled low-noise motor, characterized in that: It includes a motor housing (11), with a liquid inlet (111) and a liquid outlet (112) respectively arranged on both sides of the motor housing (11). The liquid inlet (111) and the liquid outlet (112) are connected by a detachable pipeline. An outer sleeve (12) and an inner sleeve (13) are sequentially arranged inside the motor housing (11). Two sets of push plates (2) are slidably installed on the outer sleeve (12). A cooling pipe (21), a telescopic spring (22), and a filter screen (23) are installed between the two sets of push plates (2). A cooling wire (211) is arranged inside the cooling pipe (21). A number of inner electrode rings (121) are sequentially arranged on the circumference of the outer sleeve (12). A spray tube (14) is installed between two adjacent inner electrode rings (121). A piezoelectric ceramic plate (141) is installed inside the spray tube (14). A stator (15) is installed inside the inner sleeve (13). A rotor (16) is installed inside the stator (15). An output shaft (17) is arranged inside the rotor (16). The bottom of the motor housing (11) is connected with multiple sets of shock-absorbing springs (3), and a bottom plate (31) is jointly arranged on the multiple sets of shock-absorbing springs (3).

2. The bearing oil-cooled low-noise motor according to claim 1, characterized in that: Both of the two sets of push plates (2) form a sliding seal connection between the motor housing (11) and the outer sleeve (12). A cooling and filtering chamber is formed between the inner wall of the motor housing (11), one side of the push plate (2), and the outer wall of the outer sleeve (12). A pressurizing chamber is formed between the inner wall of the motor housing (11), the other side of the push plate (2), and the outer wall of the outer sleeve (12). The cooling and filtering chamber is communicated with the liquid inlet (111), and the liquid outlet (112) is communicated with the inside of the outer sleeve (12). A communication port (201) is arranged on the push plate (2); A number of ribs (231) are arranged in a staggered manner on the filter screen (23). The ribs (231) are hollow inside, and a number of the ribs (231) are communicated with each other. A number of the ribs (231) are all communicated with the communication port (201). The ribs (231) are made of elastic material. A number of air jet openings are arranged on the ribs (231), and one-way valves are installed in a number of the air jet openings. A refrigerating wire is arranged inside the ribs (231).

3. The bearing oil-cooled low-noise motor according to claim 2, characterized in that: A disc plate is arranged in the middle of the outer sleeve (12). The disc plate is located between the two sets of push plates (2). The disc plate and the two sets of push plates (2) are sequentially connected through a telescopic spring (22), a cooling pipe (21), and a filter screen (23). The telescopic spring (22), the cooling pipe (21), and the filter screen (23) are all sleeved on the outer sleeve (12); The telescopic spring (22) is provided with an insulating outer skin. The telescopic spring (22) is electrically connected with a control system. The cooling pipe (21) is arranged on the telescopic spring (22), and the cooling pipe (21) is a metal hose.

4. The bearing oil-cooled low-noise motor according to claim 3, characterized in that: An outer electrode ring (113) is provided on the inner wall of the motor housing (11). A coil (116) is embedded in the motor housing (11). The coil (116) is located outside the outer electrode ring (113). The inner electrode ring (121), the outer electrode ring (113), and the coil (116) are all electrically connected to the control system; A coolant is provided between the inner sleeve (13) and the outer sleeve (12). The coolant has electrical conductivity and contacts the inner electrode ring (121) and the outer electrode ring (113).

5. A bearing oil-cooled low-noise motor according to claim 4, characterized in that: The spray tube (14) is installed on the outer sleeve (12). A positive electrode plate (142), a piezoelectric ceramic plate (141), and a negative electrode plate (143) are sequentially arranged in the spray tube (14). A number of small holes are provided in the middle of the piezoelectric ceramic plate (141). The piezoelectric ceramic plate (141) is made of piezoelectric ceramic material. The positive electrode plate (142) and the negative electrode plate (143) are both electrically connected to the control system.

6. The oil-cooled low-noise motor for a bearing according to claim 5, wherein: The longitudinal section of the inner sleeve (13) is conical. A number of heat dissipation fins are provided on the outside of the inner sleeve (13). A number of air ducts are provided inside the inner sleeve (13). The heat dissipation fins are made of heat-conducting material, and a detection plate (131) is provided on each heat dissipation fin; An air inlet (122) and an air outlet (123) for gas flow are provided in the pressurized chamber. The air inlet (122) and the air outlet (123) are both provided on the motor housing (11). Air inlet covers (114) and air outlet covers (115) are respectively provided on the motor housing (11) at both ends of the inner sleeve (13). The air inlet covers (114) and the air outlet covers (115) are both communicated with a number of air ducts. The air inlet cover (114) is connected to the air outlet (123) through a pipeline. Screens are provided in the air inlet cover (114) and the air inlet (122).

7. The bearing oil-cooled low-noise motor according to claim 6, characterized in that: Multiple groups of semiconductors are provided on the refrigeration wire, the cooling wire (211), and the detection plate (131). Each group of semiconductors includes an N-type semiconductor, a P-type semiconductor, and a metal plate. One end of the N-type semiconductor and the P-type semiconductor are both connected to the metal plate. The N-type semiconductor and the P-type semiconductor are both electrically connected to the control system through wires; The N-type semiconductor, the P-type semiconductor, and the metal plate on the refrigeration wire and the cooling wire (211) are the refrigeration ends of the Peltier effect. The N-type semiconductor, the P-type semiconductor, and the metal plate on the detection plate (131) are the heat ends of the Seebeck effect.

8. A bearing oil-cooled low-noise motor according to claim 7, characterized in that: The inner sleeve (13) is made of magnetic shielding material. The stator (15) is installed on the inner wall of the inner sleeve (13). The output shaft (17) is rotatably installed on the motor housing (11). One end of the output shaft (17) passes through the motor housing (11).

9. A bearing oil-cooled low-noise motor according to claim 8, characterized in that: Solenoid valves and flow meters are installed in the air inlet (122), the air outlet (123), the communication port (201), the liquid inlet (111), and the liquid outlet (112). The solenoid valves and the flow meters are electrically connected to the control system.

10. A bearing oil-cooled low-noise motor according to claim 9, characterized in that: A control box (1) is provided on the motor housing (11). A control system is provided in the control box (1).

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