A bearing oil-cooled low-noise motor

Abstract

The present invention discloses a bearing oil-cooled low-noise motor, which relates to the technical field of motors. The motor comprises a motor housing, with a liquid inlet and a liquid outlet respectively provided on both sides of the motor housing, the liquid inlet and the liquid outlet being connected by a detachable pipe. An outer sleeve and an inner sleeve are sequentially provided in the motor housing, two sets of push plates are slidably mounted on the outer sleeve, a cooling pipe, a telescopic spring, and a filter are installed between the two sets of push plates, a cooling wire is provided in the cooling pipe, a plurality of inner electrode rings are sequentially provided on the circumference of the outer sleeve, a spray barrel is installed between two adjacent inner electrode rings, a piezoelectric ceramic plate is installed in the spray barrel, a stator is installed in the inner sleeve, a rotor is installed in the stator, an output shaft is provided in the rotor, and a heat sink is provided on the inner sleeve. Cooling of the heat sink is performed by coolant on the outside and air on the inside, and cooling is performed simultaneously by water cooling and air cooling to ensure stable operation of the motor.

Description

Technical Field

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

[0002] An electric motor is a device that converts electrical energy into mechanical energy. It uses an energized coil (also known as the stator winding) to generate a rotating magnetic field, which acts on a rotor (such as a squirrel-cage aluminum frame) to generate magneto-electrodynamic torque. An electric motor primarily consists of a stator and a rotor. The direction of force exerted on a current-carrying conductor in a magnetic field is related to the direction of the current and the magnetic flux lines (magnetic field).

[0003] Existing motors have the following main problems: (1) The cooling method is single and cannot meet the needs; (2) Impurities are generated in the coolant after long-term use, which can easily cause the motor to be blocked. Summary of the Invention

[0004] The object 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-mentioned objectives, the present invention provides the following technical solutions: a bearing oil-cooled low-noise motor, comprising a motor housing, a liquid inlet and a liquid drain port respectively provided on both sides of the motor housing, the liquid inlet and the liquid drain port being connected by a detachable pipe, an outer sleeve and an inner sleeve being sequentially provided in the motor housing, two groups of push plates being slidably mounted on the outer sleeve, a cooling pipe, a telescopic spring and a filter screen being installed between the two groups of the push plates, a cooling wire being provided in the cooling pipe, a plurality of inner electrode rings being sequentially provided on the circumference of the outer sleeve, a spray barrel being installed between two adjacent inner electrode rings, a piezoelectric ceramic plate being installed in the spray barrel, a stator being installed in the inner sleeve, a rotor being installed in the stator, an output shaft being provided in the rotor, a plurality of groups of shock-absorbing springs being connected to the bottom of the motor housing, and a bottom plate being commonly provided on the plurality of groups of the shock-absorbing springs.

[0006] The two groups of push plates are connected to the motor housing and the outer sleeve in a sliding and sealed manner. 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 pressurized 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 connected to the liquid inlet, and the liquid outlet is connected to the interior of the outer sleeve. A communication port is provided on the push plate.

[0007] The filter net is staggered with a number of ribs, which are hollow inside. Several of the ribs are connected to each other and are connected to the connecting port. The ribs are made of elastic material. Several air jets are provided on the ribs, and one-way valves are installed in the several air jets. A cooling wire is provided in the ribs. The ribs made of elastic material will enhance the elasticity of the filter net and prevent the filter net from deformation and rupture.

[0008] A disc plate is provided in the middle of the outer sleeve, and the disc plate is located between the two groups of push plates. The disc plate and the two groups of push plates are connected in sequence through a telescopic spring, a cooling pipe and a filter screen, and the telescopic spring, the cooling pipe and the filter screen are all sleeved on the outer sleeve;

[0009] The telescopic spring is provided with an insulating outer skin, the telescopic spring is electrically connected to a control system, the cooling pipe is provided on the telescopic spring, and the cooling pipe is a metal hose.

[0010] An outer electrode ring is provided on the inner wall of the motor housing, a coil is embedded in the motor housing, and 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 a control system;

[0011] A coolant is provided between the inner sleeve and the outer sleeve. The coolant is conductive and contacts the inner electrode ring and the outer electrode ring.

[0012] The spray cylinder is installed on the outer sleeve. A positive plate, a piezoelectric ceramic plate and a negative plate are arranged in sequence in the spray cylinder. A plurality of small holes are provided in the middle of the piezoelectric ceramic plate. Several of the small holes are conical to realize the unidirectional 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.

[0013] The longitudinal section of the inner sleeve is tapered, and the tapered inner sleeve facilitates the diversion of the coolant so that the coolant can be discharged from the drain port. A plurality of heat sinks are provided on the outer side of the inner sleeve, and a plurality of air ducts are provided inside the inner sleeve. The heat sinks are made of heat-conducting material, and a detection plate is provided on each of the heat sinks.

[0014] The pressurized chamber is provided with an air inlet and an exhaust port for gas flow, and the air inlet and the exhaust port are both provided on the motor housing. The motor housing at both ends of the inner sleeve is respectively provided with an air inlet hood and an exhaust hood, and the air inlet hood and the exhaust hood are both connected to a number of air ducts, and the air inlet hood is connected to the exhaust port through a pipe. Screens are provided in the air inlet hood and the air inlet, and the screens filter the air.

[0015] The cooling wire, the cooling wire and the detection plate are each provided with a plurality of groups of semiconductors, each group of semiconductors including an N-type semiconductor, a P-type semiconductor and a metal plate, one end of each of the N-type semiconductor and the P-type semiconductor is connected to the metal plate, and each of the N-type semiconductor and the P-type semiconductor is electrically connected to the control system through a wire;

[0016] The cooling wire and the N-type semiconductor, P-type semiconductor and metal plate on the cooling wire are the cooling end of the Peltier effect, and the N-type semiconductor, P-type semiconductor and metal plate on the detection board are the hot end of the Seebeck effect.

[0017] The inner sleeve is made of magnetic shielding material, the stator is mounted on the inner wall of the inner sleeve, the output shaft is rotatably mounted on the motor housing, and one end of the output shaft passes through the motor housing.

[0018] The air inlet and the exhaust port, the communication port, the liquid inlet and the liquid discharge port are all equipped with electromagnetic valves and flow meters, and the electromagnetic valves and the flow meters are electrically connected to the control system.

[0019] A control box is provided on the motor housing, and a control system is provided in the control box.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Use water cooling and air cooling simultaneously to ensure stable operation of the motor. The control system applies pulse current to the piezoelectric ceramic plate through the positive and negative plates, causing the piezoelectric ceramic plate to vibrate continuously. The piezoelectric ceramic plate drives the coolant to vibrate rapidly, and then the coolant passes through several small holes and sprays on the heat sink in the form of aerosol. The coolant cools the heat sink, inner sleeve, rotor, stator and output shaft; the air enters the air duct in the inner sleeve through the air intake hood, and the air exchanges heat while flowing in the air duct. The air after heat exchange enters the exhaust hood and is discharged to the outside atmosphere through the exhaust hood. Therefore, the outside of the heat sink dissipates heat through the coolant, and the inside of the heat sink dissipates heat through the air to improve the heat dissipation effect of the heat sink. Cooling by water cooling and air cooling simultaneously ensures stable operation of the motor.

[0022] 2. The filter screen is self-cleaning to prevent impurities from clogging the motor. As the air in the cooling filter chamber is drawn in and out, it flushes the filter screen. The air within the ribs pushes open the one-way valve in the air jet port, and the air within the ribs is ejected from the air jet port onto the filter screen. This air within the ribs cleans the filter screen again, creating a composite cleaning process that improves the filter screen's cleaning effect, removing most impurities from the filter screen and preventing them from clogging the motor.

[0023] 3. Intelligent temperature monitoring and dual cooling ensure that the motor is at the optimal temperature. The hot end of the Seebeck effect of the N-type semiconductor, P-type semiconductor, and metal plate on the detection board (the cold end is not explained) generates current through the Seebeck effect and transmits it to the control system. The control system detects the current generated by the Seebeck effect and then obtains the temperature of the heat sink to achieve temperature monitoring of the rotor and stator. Based on this temperature data, the control system flexibly adjusts the cooling effect of the cooling end to form intelligent temperature monitoring of the motor; the cooling end in the rib cools the diverted coolant once, and then the coolant contacts the cooling tube. The cooling end in the cooling tube cools the coolant a second time, forming a dual cooling process, which quickly cools the coolant to the set temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0025] Figure 2 It is a structural schematic diagram of the outer sleeve in the present invention;

[0026] Figure 3 It is a structural diagram of the filter screen of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the output shaft in the present invention;

[0028] Figure 5 yes Figure 4 A partial enlarged view of area A in the middle;

[0029] Figure 6 It is a structural schematic diagram of the telescopic spring in the present invention;

[0030] Figure 7 It is a structural schematic diagram of the inner sleeve in the present invention;

[0031] Figure 8 It is a structural schematic diagram of the cooling pipe in the present invention;

[0032] Figure 9 yes Figure 8 A partial enlarged view of the middle B area;

[0033] Figure 10 It is a structural schematic diagram of the piezoelectric ceramic plate in the present invention.

[0034] In the figure: 1. control box; 11. motor housing; 111. liquid inlet; 112. liquid discharge port; 113. outer electrode ring; 114. air inlet cover; 115. exhaust cover; 116. coil; 12. outer sleeve; 121. inner electrode ring; 122. air inlet; 123. exhaust port; 13. inner sleeve; 131. detection plate; 14. spray tube; 141. piezoelectric ceramic plate; 142. positive plate; 143. negative plate; 15. stator; 16. rotor; 17. output shaft; 2. push plate; 201. connecting port; 21. cooling pipe; 211. cooling wire; 22. telescopic spring; 23. filter screen; 231. rib; 3. shock-absorbing spring; 31. bottom plate. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] Example: Figures 1-10 As shown, the present invention provides a technical solution for a bearing oil-cooled low-noise motor, including a motor housing 11, a liquid inlet 111 and a liquid drain port 112 are respectively provided on both sides of the motor housing 11, the liquid inlet 111 and the liquid drain port 112 are connected by a detachable pipe, an outer sleeve 12 and an inner sleeve 13 are sequentially provided in the motor housing 11, two groups of push plates 2 are slidably mounted on the outer sleeve 12, a cooling pipe 21, a telescopic spring 22 and a filter screen 23 are installed between the two groups of push plates 2, a cooling wire 211 is provided in the cooling pipe 21, and a plurality of inner electrode rings 121 are sequentially provided on the circumference of the outer sleeve 12, and two adjacent inner electrode rings 121 are sequentially provided. A spray barrel 14 is installed between the inner electrode rings 121, and a piezoelectric ceramic plate 141 is installed in the spray barrel 14. A stator 15 is installed in the inner sleeve 13, and a rotor 16 is installed in the stator 15. An output shaft 17 is provided in the rotor 16. Multiple groups of shock-absorbing springs 3 are connected to the bottom of the motor housing 11, and a bottom plate 31 is commonly provided on the multiple groups of shock-absorbing springs 3. A control box 1 is provided on the motor housing 11, and a control system is provided in the control box 1. The inner sleeve 13 is made of magnetic shielding material, and 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, and one end of the output shaft 17 passes through the motor housing 11.

[0037] Both sets of push plates 2 form a sliding sealing connection with the motor housing 11 and the outer sleeve 12. A cooling filter 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 pressurized 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 filter chamber is connected to the liquid inlet 111, and the drain port 112 is connected to the interior of the outer sleeve 12. A connecting port 201 is provided on the push plate 2; a plurality of ribs 231 are staggered on the filter screen 23, the ribs 231 are hollow inside, and the plurality of ribs 231 are connected to each other, and the plurality of ribs 231 are connected to the connecting port 201. The ribs 231 are made of elastic material, and a plurality of jet ports are provided on the ribs 231. A one-way valve is installed in the plurality of jet ports, and a cooling wire is provided in the ribs 231. The ribs 231 made of elastic material will enhance the elasticity of the filter screen 23 to prevent the filter screen 23 from deforming and rupturing.

[0038] When the motor has been running for a set time, the filter screen 23 needs to be jet-cleaned to ensure the normal filtering effect of the filter screen 23. At this time, the staff removes the pipe connecting the liquid inlet 111 and the liquid discharge port 112 and closes the solenoid valve in the liquid discharge port 112. At this time, the cooling filter chamber is connected to the outside air through the liquid inlet 111, and the circulation of the coolant cannot be achieved. The coolant is deposited between the inner sleeve 13 and the outer sleeve 12.

[0039] The control system controls the two sets of telescopic springs 22 to be energized, and opens the solenoid valve in the air inlet 122, closes the solenoid valve in the exhaust port 123, and closes the solenoid valve in the communication port 201. The telescopic spring 22 on the left pulls the left push plate 2 to the right, and the telescopic spring 22 on the right pulls the right push plate 2 to the left, so that the volume of the cooling filter 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, while the air in the cooling filter chamber is discharged to the outside atmosphere through the liquid inlet 111.

[0040] After the two sets of telescopic springs 22 are energized for a set time, the control system de-energizes the two sets of telescopic springs 22, closes the solenoid valve in the air inlet 122, closes the solenoid valve in the exhaust port 123, and opens the solenoid valve in the communication port 201. The telescopic spring 22 on the left pushes the left push plate 2 to the left, and the telescopic spring 22 on the right pushes the right push plate 2 to the right, so that the volume of the cooling filter chamber gradually increases and the volume of the pressurizing chamber gradually decreases. The air pressure in the pressurizing chamber gradually increases, and the air in the pressurizing chamber is transported to the rib 231 through the communication port 201, and the external air is sucked into the cooling filter chamber through the liquid inlet 111.

[0041] As the control system continues to energize and de-energize the two sets of telescopic springs 22, more and more air is transported into the rib 231 through the pressurized chamber, and the air in the cooling filter chamber is continuously inhaled and discharged through the liquid inlet 111. While the air in the cooling filter chamber is inhaled and discharged, the filter 23 is flushed; 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 onto the filter 23 from the jet port. The air in the rib 231 cleans the filter 23 again, forming a composite cleaning treatment of the filter 23, improving the cleaning effect of the filter 23, and removing most of the impurities on the filter 23. The removed impurities fall into the cooling filter chamber.

[0042] A disc plate is provided in the middle of the outer sleeve 12, and 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 connected in sequence through a telescopic spring 22, a cooling pipe 21 and a filter 23. The telescopic spring 22, the cooling pipe 21 and the filter 23 are all sleeved on the outer sleeve 12;

[0043] During the operation of the motor, the telescopic spring 22 is continuously energized and de-energized, and the telescopic spring 22 continuously contracts and lengthens. The two sets of telescopic springs 22 synchronously drive the two sets of push plates 2 to move back and forth. Since the cooling pipe 21 is a metal hose, the cooling pipe 21 contracts and lengthens following the telescopic spring 22 to adapt to the volume change of the cooling filter chamber, so as to ensure that after the volume of the cooling filter chamber changes, it can still cool or reduce the temperature at various positions of the cooling filter chamber.

[0044] After the telescopic spring 22 is powered off, the telescopic spring 22 pushes the pushing plate 2 away from the disc plate, and the pushing plate 2 pulls the filter screen 23 to gradually expand; after the telescopic spring 22 is powered on, the telescopic spring 22 pulls the pushing plate 2 close to the disc plate, and the pushing plate 2 pushes the filter screen 23 to gradually shrink; through the continuous power on and off of the telescopic spring 22, the two groups of pushing plates 2 continue to move back and forth, and the reciprocating movement of the two groups of pushing plates 2 drives the filter screen 23 to vibrate rapidly, thereby preventing impurities from being deposited on the filter screen 23, and also facilitating the coolant to pass through the filter screen 23, thereby improving the filtering effect of the filter screen 23.

[0045] The telescopic spring 22 is provided with an insulating outer skin. The telescopic spring 22 is electrically connected to the control system. The cooling pipe 21 is provided on the telescopic spring 22 . The cooling pipe 21 is a metal hose.

[0046] 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.

[0047] A coolant is provided between the inner sleeve 13 and the outer sleeve 12 . The coolant is conductive and contacts the inner electrode ring 121 and the outer electrode ring 113 .

[0048] After the filter screen 23 is jet cleaned, most of the impurities on the filter screen 23 are removed. At this time, a certain amount of impurities will be deposited in the cooling filter chamber, and the remaining impurities in the cooling filter chamber and the filter screen 23 need to be cleaned again. At this time, the staff removes the pipe 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 the multiple groups of inner electrode rings 121 to the positive pole of the power supply in sequence, 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 is conductive, so current flows in the coolant. The current flows from the inner electrode ring 121 to the outer electrode ring 113. The current is affected by the magnetic field of the coil 116 and the Lorentz force, and the coolant flows in a circular manner along the inner wall of the cooling filter chamber. The circularly flowing coolant continuously contacts the interior of the cooling filter chamber to clean the cooling filter chamber.

[0049] When the inner electrode ring 121 and the outer electrode ring 113 are energized for the set time, the staff opens the solenoid valves in the liquid inlet 111 and the liquid discharge port 112 to discharge impurities and coolant from the liquid discharge port 112. The staff adds new coolant from the liquid inlet 111 to clean the filter screen 23 and the cooling filter chamber. Afterwards, the staff closes the solenoid valve in the liquid discharge port 112 through the control system.

[0050] It should be noted that since multiple groups of inner electrode rings 121 are connected to the positive pole of the power supply in sequence, the coolant in the cooling filter chamber flows in a circular manner in sequence, forming a continuous fluctuation of the coolant, and then forming an impact, thereby improving the cleaning effect of the coolant on the cooling filter chamber and the filter mesh 23.

[0051] The spray cylinder 14 is installed on the outer sleeve 12. The positive plate 142, the piezoelectric ceramic plate 141 and the negative plate 143 are sequentially arranged in the spray cylinder 14. A plurality of small holes are provided in the middle of the piezoelectric ceramic plate 141. The plurality of small holes are conical to realize the unidirectional flow of the coolant. The piezoelectric ceramic plate 141 is made of piezoelectric ceramic material. The positive plate 142 and the negative plate 143 are both electrically connected to the control system.

[0052] The longitudinal section of the inner sleeve 13 is conical, and the conical inner sleeve 13 will facilitate the diversion of the coolant so that the coolant can be discharged from the drain port 112. A number of heat sinks are provided on the outside of the inner sleeve 13, and a number of air ducts are provided inside the inner sleeve 13. The heat sinks are made of heat-conducting materials, and a detection plate 131 is provided on each of the heat sinks. 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. The inner sleeve 1 The motor housing 11 at both ends is provided with an air intake hood 114 and an exhaust hood 115, respectively. The air intake hood 114 and the exhaust hood 115 are both connected to a number of air ducts. The air intake hood 114 is connected to the exhaust port 123 through a pipe. Screens are provided in the air intake hood 114 and the air intake port 122 to filter the air. Solenoid valves and flow meters are installed in the air intake port 122, the exhaust port 123, the communication port 201, the liquid inlet port 111, and the liquid discharge port 112. The solenoid valves and flow meters are electrically connected to the control system.

[0053] During the operation of the motor, the control system connects the N-type semiconductor and the P-type semiconductor on the detection board 131 to the circuit, and the hot end of the Seebeck effect of the N-type semiconductor, the P-type semiconductor and the metal plate on the detection board 131, and the cold end is not explained. The hot end and the cold end generate current through the Seebeck effect and transmit it to the control system. The control system detects the current generated by the Seebeck effect and then obtains the temperature of the heat sink to realize temperature monitoring of the rotor 16 and the stator 15. The control system flexibly adjusts the cooling effect of the cooling end based on the temperature data. Finally, the control system processes the current generated by the Seebeck effect and uses it for cooling the cooling end to reduce the energy consumption of the motor.

[0054] During the operation of the motor, the control system continuously energizes and deenergizes the telescopic springs 22; when the two sets of telescopic springs 22 are energized, the control system simultaneously opens the solenoid valve in the air inlet 122 and closes the solenoid valve in the exhaust port 123. The telescopic spring 22 on the left pulls the push plate 2 on the left to move right, while the telescopic spring 22 on the right pulls the push plate 2 on the right to move left, so that the volume of the cooling filter chamber decreases while the volume of the pressurized chamber gradually increases. At this time, external air is sucked into the pressurized chamber through the air inlet 122.

[0055] When 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 exhaust port 123. The telescopic spring 22 on the left pushes the push plate 2 on the left to move to the right, and the telescopic spring 22 on the right pushes the push plate 2 on the right to move to the left, so that the volume of the cooling filter chamber increases while the volume of the pressurized chamber gradually decreases, and the air pressure in the pressurized chamber gradually increases. The air enters the air intake hood 114 through the exhaust port 123, and the air enters the air duct in the inner sleeve 13 through the air intake hood 114. The air exchanges heat while flowing in the air duct. The air after heat exchange enters the exhaust hood 115 and is discharged to the external atmosphere through the exhaust hood 115. Therefore, the outside of the heat sink dissipates heat through the coolant, and the inside of the heat sink dissipates heat through the air, so as to improve the heat dissipation effect of the heat sink.

[0056] Multiple groups of semiconductors are provided on the cooling wire, cooling wire 211 and 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 connected to the metal plate, and the N-type semiconductor and the P-type semiconductor are electrically connected to the control system through wires; the N-type semiconductor, P-type semiconductor and the metal plate on the cooling wire and cooling wire 211 are the cooling end of the Peltier effect, and the N-type semiconductor, P-type semiconductor and the metal plate on the detection plate 131 are the hot end of the Seebeck effect.

[0057] Working principle: During the operation of the motor, the control system continuously energizes and de-energizes the telescopic spring 22 and closes the solenoid valve in the communication port 201;

[0058] When the two sets of telescopic springs 22 are powered off, the control system opens the solenoid valves in the liquid inlet 111 and the liquid discharge port 112 at the same time. The two sets of telescopic springs 22 gradually lengthen under the action of their own elastic force. The telescopic spring 22 on the left pushes the left push plate 2 to the left, and the telescopic spring 22 on the right pushes the right push plate 2 to the right, so that the volume of the cooling filter chamber between the two sets of push plates 2 gradually increases. At this time, the coolant is sucked into the cooling filter chamber through the chamber between the inner sleeve 13 and the outer sleeve 12, the liquid discharge port 112, the pipeline and the liquid inlet 111.

[0059] When the coolant enters the cooling filter chamber, the flow meter in the liquid inlet 111 feeds back the flow data to the control system, and 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 telescopic spring 22 is shortened as a whole, and the telescopic spring 22 on the left pulls the push plate 2 on the left to move to the right, and the telescopic spring 22 on the right pulls the push plate 2 on the right to move to the left, so that the volume of the cooling filter chamber between the two sets of push plates 2 gradually becomes smaller, and the pressure of the coolant gradually increases, and the coolant passes through the filter The net 23 enters the spray barrel 14; the control system applies a pulse current to the piezoelectric ceramic plate 141 through the positive plate 142 and the negative plate 143, causing the piezoelectric ceramic plate 141 to vibrate continuously. The piezoelectric ceramic plate 141 drives the coolant to vibrate rapidly, and then the coolant passes through several small holes and is sprayed on the heat sink in the form of aerosol. The coolant is used to cool the heat sink, the inner sleeve 13, the rotor 16, the stator 15 and the output shaft 17. After the coolant exchanges heat with the heat sink, it is located in the cavity between the inner sleeve 13 and the outer sleeve 12 and is sucked out from the drain port 112 next time.

[0060] After the coolant enters the liquid inlet 111, the flow meter in the liquid inlet 111 feeds data back to the control system, and the control system energizes the N-type semiconductor and the P-type semiconductor on the cooling wire and the cooling wire 211. The N-type semiconductor, the P-type semiconductor and the metal plate on the cooling wire and the cooling wire 211 are the cooling ends of the Peltier effect. The ribs 231 on the filter 23 divert the coolant, buffering the coolant while reducing noise, and also facilitating cooling the diverted coolant to improve the cooling effect. The cooling end in the rib 231 cools the diverted coolant once, and then the coolant contacts the cooling tube 21. The cooling end in the cooling tube 21 cools the coolant for a second time, thereby quickly cooling the coolant to the set temperature.

[0061] As the telescopic spring 22 is continuously energized and de-energized, a circulation flow of the coolant is formed, so that the cooled or refrigerated coolant continuously exchanges heat with the heat sink, thereby reducing the temperature of the rotor 16, the stator 15 and the output shaft 17, and ensuring the normal operation of the motor.

[0062] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A bearing oil-cooled low-noise motor, characterized by: The invention comprises a motor housing (11), wherein a liquid inlet (111) and a liquid outlet (112) are respectively provided on both sides of the motor housing (11), wherein the liquid inlet (111) and the liquid outlet (112) are connected via a detachable pipe, wherein an outer sleeve (12) and an inner sleeve (13) are sequentially provided in the motor housing (11), wherein two groups of push plates (2) are slidably installed on the outer sleeve (12), wherein a cooling pipe (21), a telescopic spring (22) and a filter screen (23) are installed between the two groups of push plates (2), wherein a cooling wire (211) is provided in the cooling pipe (21) ), a plurality of inner electrode rings (121) are sequentially arranged on the circumference of the outer sleeve (12), a spray barrel (14) is installed between two adjacent inner electrode rings (121), a piezoelectric ceramic plate (141) is installed in the spray barrel (14), a stator (15) is installed in the inner sleeve (13), a rotor (16) is installed in the stator (15), an output shaft (17) is arranged in the rotor (16), a plurality of groups of shock-absorbing springs (3) are connected to the bottom of the motor housing (11), and a bottom plate (31) is commonly provided on the plurality of groups of shock-absorbing springs (3); The two groups of push plates (2) are both connected in a sliding and sealed manner to 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 pressurized 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); the liquid outlet (112) is communicated with the interior of the outer sleeve (12); and a communication port (201) is provided on the push plate (2); A plurality of ribs (231) are staggeredly arranged on the filter screen (23), the interior of the ribs (231) is hollow, the plurality of ribs (231) are interconnected, and the plurality of ribs (231) are all connected to the communication port (201), the ribs (231) are made of elastic material, a plurality of air jets are arranged on the ribs (231), a check valve is installed in each of the air jets, and a cooling wire is arranged in the ribs (231); The longitudinal section of the inner sleeve (13) is conical, a plurality of heat sinks are provided on the outside of the inner sleeve (13), a plurality of air ducts are provided inside the inner sleeve (13), the plurality of heat sinks are made of heat-conducting material, and a detection plate (131) is provided on each of the heat sinks; An air inlet (122) and an exhaust port (123) for gas flow are provided in the pressurized chamber, and the air inlet (122) and the exhaust port (123) are both provided on the motor housing (11). An air inlet hood (114) and an exhaust hood (115) are provided on the motor housing (11) at both ends of the inner sleeve (13), respectively. The air inlet hood (114) and the exhaust hood (115) are both connected to a plurality of air ducts. The air inlet hood (114) is connected to the exhaust port (123) through a pipeline, and screens are provided in the air inlet hood (114) and the air inlet (122); 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 each of the N-type semiconductor and the P-type semiconductor is connected to the metal plate, and each of the N-type semiconductor and the P-type semiconductor is electrically connected to the control system via a wire; The N-type semiconductor, P-type semiconductor and metal plate on the cooling wire and the cooling wire (211) are the cooling end of the Peltier effect, and the N-type semiconductor, P-type semiconductor and metal plate on the detection plate (131) are the hot end of the Seebeck effect.

2. The bearing oil-cooled low-noise motor according to claim 1, characterized in that: A disc plate is provided in the middle of the outer sleeve (12), and the disc plate is located between the two groups of push plates (2). The disc plate and the two groups of push plates (2) are connected in sequence 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 to a control system, the cooling pipe (21) is provided on the telescopic spring (22), and the cooling pipe (21) is a metal hose.

3. The bearing oil-cooled low-noise motor according to claim 2, 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), and the inner electrode ring (121), the outer electrode ring (113) and the coil (116) are all electrically connected to a control system; A coolant is provided between the inner sleeve (13) and the outer sleeve (12); the coolant is conductive and in contact with the inner electrode ring (121) and the outer electrode ring (113).

4. The bearing oil-cooled low-noise motor according to claim 3, characterized in that: The spray cylinder (14) is installed on the outer sleeve (12), and a positive plate (142), a piezoelectric ceramic plate (141) and a negative plate (143) are sequentially arranged in the spray cylinder (14), and a plurality of small holes are arranged in the middle of the piezoelectric ceramic plate (141). The piezoelectric ceramic plate (141) is made of piezoelectric ceramic material, and the positive plate (142) and the negative plate (143) are both electrically connected to a control system.

5. The bearing oil-cooled low-noise motor according to claim 4, characterized in that: The inner sleeve (13) is made of magnetic shielding material, the stator (15) is mounted on the inner wall of the inner sleeve (13), the output shaft (17) is rotatably mounted on the motor housing (11), and one end of the output shaft (17) passes through the motor housing (11).

6. The bearing oil-cooled low-noise motor according to claim 5, characterized in that: The air inlet (122), the air outlet (123), the communication port (201), the liquid inlet (111), and the liquid outlet (112) are all equipped with electromagnetic valves and flow meters, and the electromagnetic valves and flow meters are electrically connected to the control system.

7. The bearing oil-cooled low-noise motor according to claim 6, characterized in that: A control box (1) is provided on the motor housing (11), and a control system is provided in the control box (1).

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