A water-cooling mechanism motor

Abstract

The present invention relates to the field of motor cooling technology, specifically a water-cooled motor, including a bottom plate and a motor housing, a water pump and a cooling mechanism on both sides of the motor housing, a rotor in the motor housing, and a coupling connected to one end of the rotor. The heat generated by the rotor and the stator cover of the present invention is conducted out through fins in the form of heat conduction and heat convection. The rotor drives the water pump through the coupling to input the coolant between the stator cover and the motor housing. The cooling liquid contacts the fins to absorb the heat. The coolant fills the rotor housing to absorb the heat radiated from the inside of the motor. The coolant flows back to the water pump through the cooling mechanism and the connecting pipe to form a circulating heat dissipation. When the temperature of the motor is high, the area of ​​the airbag ring that expands due to heat becomes smaller, which can increase the input speed of the coolant. At the same time, the curvature of the arc-shaped bimetallic spring increases, and the soft rubber membrane petal is driven to open and increase the diameter of the water outlet pipe, which can greatly improve the circulation speed of the water, thereby greatly improving the heat dissipation efficiency of the motor.

Description

Technical Field

[0001] The invention relates to a motor, in particular to a water-cooling mechanism motor, and belongs to the technical field of motor cooling. Background Art

[0002] A water-cooled motor, also known as a liquid-cooled motor, is a device that uses liquid cooling to reduce the temperature of the motor. It is mainly composed of a radiator, a water pump, coolant pipes and filtering equipment. It has the advantages of good heat dissipation, low noise and high stability. Compared with air-cooled motors that dissipate heat through fans, water-cooled motors dissipate heat through liquid circulation and radiators, which can achieve a larger range and higher efficiency of heat dissipation, effectively reduce the temperature of the motor, and are suitable for occasions with high requirements for heat dissipation.

[0003] According to a Chinese patent application with publication number CN112701855A, an insulated water-cooling mechanism for an electric motor is disclosed. By coordinating the drive motor, the heat dissipation structure and the auxiliary seat, when the drive motor rotates, the heat dissipation plate on the heat dissipation structure can be reciprocated, thereby realizing reciprocating heat dissipation of the drive motor and the pipeline, jet impact heat dissipation and wind gathering, and longitudinal impact heat dissipation can also be realized through the cooperation of the heat dissipation structure and the auxiliary seat.

[0004] There are three main ways of heat transfer during motor operation: heat conduction, heat convection and heat radiation. When the above-mentioned equipment is used, the reciprocating heat dissipation of the pipeline, the jet impact heat dissipation and the gathering of wind force are used to dissipate the heat radiated from the motor casing, which is inefficient. The power of the motor is certain, and the settings of the blades, the toggle rods and the force blocks in the above-mentioned equipment will increase the load on the motor, which is not worth the loss.

[0005] Therefore, it is urgent to improve the water-cooling mechanism motor to solve the above-mentioned problems. Summary of the invention

[0006] The purpose of the present invention is to provide a water-cooled motor. The heat generated by the rotor and the stator cover is discharged through the fins in the form of heat conduction and heat convection. The rotor drives the water pump through a coupling to input the coolant between the stator cover and the motor housing. The cooling liquid contacts the fins to absorb the heat. The coolant fills the rotor housing and can absorb the heat radiated from the inside of the motor. The coolant flows back to the water pump through the cooling mechanism and the connecting pipe to form a circulating heat dissipation. When the temperature of the motor is high, the area of ​​the airbag circle that expands due to heat becomes smaller, which can increase the input speed of the coolant. At the same time, the curvature of the arc-shaped bimetallic spring increases, and the soft rubber diaphragm petals are driven to open and increase the diameter of the water outlet pipe, which can greatly improve the circulation speed of the water, thereby greatly improving the heat dissipation efficiency of the motor.

[0007] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0008] A water-cooling mechanism motor comprises a base plate and a motor housing fixedly mounted on the base plate, a water pump is fixedly mounted on one side of the motor housing on the base plate, a cooling mechanism is fixedly connected to a side of the motor housing away from the water pump, a rotor is rotatably arranged inside the motor housing, an output end of the rotor extends to both sides of the motor housing, a coupling is connected to the output end of the rotor, and a driving shaft of the water pump is rotatably arranged inside the coupling;

[0009] A stator cover is fixedly installed inside the motor housing, the rotor is rotatably arranged inside the stator cover, a plurality of evenly distributed fins are fixedly arranged on the stator cover, the fins correspond to the output end of the water pump, the output end of the water pump is fixedly connected with a water inlet pipe, the interior of the water pump is connected with the interior of the motor housing through the water inlet pipe, an air bag ring is fixedly installed on the inner wall of the water inlet pipe, cooling water flows into between the motor housing and the stator cover through the inner side of the air bag ring and contacts the fins;

[0010] A water outlet pipe is fixedly installed on the bottom side of the motor housing, and one end of the water outlet pipe away from the motor housing is connected to the input port of the cooling mechanism by snapping, and two symmetrically distributed arc-shaped bimetallic springs are fixedly arranged inside the water outlet pipe, and a soft rubber diaphragm is fixedly connected to one side of the arc-shaped bimetallic spring close to the motor housing, and one end of the soft rubber diaphragm away from the arc-shaped bimetallic spring is fixedly connected to the inner wall of the water outlet pipe;

[0011] The output end of the cooling mechanism is fixedly connected with a connecting pipe, and one end of the connecting pipe away from the cooling mechanism is fixedly connected to the input end of the water pump.

[0012] Preferably, a motor shaft is fixedly installed in the middle of the rotor, the motor shaft passes through the motor housing and extends to both ends of the motor housing, the motor shaft is used to drive the impeller inside the water pump to rotate through the coupling, and a flange is fixedly installed at one end of the motor housing, and a gasket is fixedly installed on the side of the flange.

[0013] Preferably, an exhaust port is fixedly installed on the upper end of the motor housing, a sealing airbag is slidably arranged inside the exhaust port, a fan box is fixedly installed on the end of the motor housing away from the flange, a fan impeller is rotatably arranged inside the fan box, and a drive shaft of the fan impeller is fixedly connected to one end of the motor shaft.

[0014] Preferably, the cooling mechanism includes two curved tubes distributed up and down and a semiconductor refrigerator fixedly mounted on the base plate, and both ends of the two curved tubes are connected to the water outlet pipe and one end of the connecting pipe respectively through a tee pipe.

[0015] Preferably, a plurality of evenly distributed heat sinks are fixedly mounted on the semiconductor refrigerator, and the heat sinks penetrate the gaps at the bends of the two curved tubes and extend to the upper end of the cooling mechanism.

[0016] Preferably, a sliding rheostat is fixedly installed on the bottom plate, and the sliding rheostat is fixedly arranged on the bottom side of the motor housing. A guide rod is fixedly installed on one side of the sliding rheostat, and a temperature sensing cap is fixedly installed on the guide rod. The temperature sensing cap extends to the interior of the motor housing, and a temperature sensing liquid cavity is opened inside the temperature sensing cap.

[0017] Preferably, a slider is slidably provided inside the temperature sensing cap, the slider is sleeved on the outside of the guide rod, an electrode block is fixedly provided on one side of the slider, the electrode block is in contact with one side of the sliding rheostat, and the electrode block and the sliding rheostat are respectively connected in series in the power supply circuit of the semiconductor refrigerator through wires.

[0018] Preferably, a heat conducting pipe is fixedly provided at the upper end of the temperature sensing cap, the heat conducting pipe is in contact with cooling water between the motor housing and the rotor, and an oil seal is fixedly provided at the bottom end of the temperature sensing cap.

[0019] Preferably, a check valve is fixedly provided on the connecting pipe, and a filter screen is fixedly provided inside the check valve.

[0020] Preferably, two support bases are fixedly provided on the bottom side of the motor housing, and the support bases are fixedly mounted on the base plate by bolts.

[0021] The present invention has at least the following beneficial effects:

[0022] 1. The heat generated by the rotor and the stator cover of the present invention is conducted out through the fins in the form of heat conduction and heat convection. The rotor drives the water pump through the coupling to input the coolant between the stator cover and the motor housing. The cooling liquid contacts the fins to absorb the heat. The coolant fills the rotor housing to absorb the heat radiated from the inside of the motor. The coolant flows back to the water pump through the cooling mechanism and the connecting pipe to form a circulating heat dissipation effect. The coupling connects the rotor, the water pump and the water cooling mechanism as a whole, which reduces the load of the motor without affecting the output efficiency of the motor.

[0023] 2. When the temperature of the motor is high, the area inside the airbag circle expands due to heat, which reduces the diameter of the water inlet pipe and increases the input speed of the coolant. At the same time, the curvature of the arc-shaped bimetallic spring increases, and the edge of the arc-shaped bimetallic spring expands and drives the soft rubber membrane petals to open to both sides, thereby expanding the diameter of the water outlet pipe and increasing the water outlet flow rate. Therefore, the flow circulation speed of the coolant can be greatly increased, thereby greatly improving the heat dissipation efficiency of the motor.

[0024] 3. In the process of the rotor driving the motor shaft to rotate, the motor shaft drives the fan impeller to rotate, and the coolant vapor after absorbing heat and evaporating passes through the exhaust port. The air bag can prevent the coolant gushing out from the water inlet pipe of the water pump from overflowing, and is discharged through the air pipe and the fan box. When the coolant is insufficient, the air bag will slide downward, and the staff can open the exhaust port cover to add coolant.

[0025] 4. When the temperature of the coolant in the motor housing continues to rise, the heat pipe can introduce the high temperature into the temperature-sensitive liquid. The temperature-sensitive liquid in the temperature-sensitive liquid cavity expands due to the heat, pushing the slider to slide along the guide rod. During the sliding of the guide rod, the electrode block slides downward and contacts one side of the sliding rheostat. The higher the temperature, the smaller the resistance of the sliding rheostat. At the same time, the greater the current of the semiconductor refrigerator, the higher the power of the semiconductor refrigerator, the better the cooling effect. The cooling effect of the refrigeration mechanism can be adjusted according to the use of the motor, which is more energy-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0027] Figure 1 The overall elevation diagram provided by the present invention;

[0028] Figure 2 A schematic diagram of the working of the water pump and water cooling mechanism provided by the present invention;

[0029] Figure 3 A schematic diagram of the exhaust port and fan box structure provided by the present invention;

[0030] Figure 4 A schematic diagram of the structure of the rotor and stator cover provided by the present invention;

[0031] Figure 5 A schematic diagram of the rotor operation provided by the present invention;

[0032] Figure 6 An exploded schematic diagram of the cooling mechanism provided by the present invention;

[0033] Figure 7 Schematic diagram of the sliding resistor structure provided by the present invention

[0034] Figure 8 Schematic diagram of the cross-sectional structure of the temperature sensing cap provided by the present invention

[0035] Fig. 9 Schematic diagram of the arc-shaped bimetallic spring structure provided by the present invention

[0036] Fig.10 This is a circuit schematic diagram of the semiconductor refrigerator provided by the present invention.

[0037] In the figure, 1, bottom plate; 2, motor housing; 21, water outlet pipe; 22, flange; 23, gasket; 24, support seat; 3, water pump; 31, water inlet pipe; 4, cooling mechanism; 41, curved pipe; 42, three-way pipe; 5, rotor; 51, motor shaft; 6, coupling; 7, stator cover; 8, fin; 9, air bag ring; 10, arc-shaped bimetallic spring; 11, soft rubber membrane petal; 13, connecting pipe; 131, check valve; 14, exhaust port; 141, blocking air bag; 15, fan box; 151, fan impeller; 43, semiconductor refrigerator; 44, heat sink; 17, sliding rheostat; 171, guide rod; 172, temperature sensing cap; 173, temperature sensing liquid chamber; 174, slider; 175, electrode block; 176, heat pipe; 177, oil seal. DETAILED DESCRIPTION

[0038] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0039] like Figure 1 - Fig.10 As shown, the water-cooling mechanism motor provided in this embodiment includes a base plate 1 and a motor housing 2 fixedly mounted on the base plate 1, a water pump 3 is fixedly mounted on one side of the motor housing 2 of the base plate 1, a cooling mechanism 4 is fixedly connected to the side of the motor housing 2 away from the water pump 3, a rotor 5 is rotatably arranged inside the motor housing 2, an output end of the rotor 5 extends to both sides of the motor housing 2, a coupling 6 is connected to the output end of the rotor 5, and a driving shaft of the water pump 3 is rotatably arranged inside the coupling 6;

[0040] A stator cover 7 is fixedly installed inside the motor housing 2, and a rotor 5 is rotatably arranged inside the stator cover 7. A plurality of evenly distributed fins 8 are fixedly arranged on the stator cover 7, and the fins 8 correspond to the output end of the water pump 3. The output end of the water pump 3 is fixedly connected with a water inlet pipe 31. The interior of the water pump 3 is connected with the interior of the motor housing 2 through the water inlet pipe 31. An air bag ring 9 is fixedly installed on the inner wall of the water inlet pipe 31. Cooling water flows into between the motor housing 2 and the stator cover 7 through the inner side of the air bag ring 9 and contacts the fins 8.

[0041] The heat generated by the rotor 5 and the stator cover 7 is conducted out through the fins 8 in the form of heat conduction and heat convection. The rotor 5 drives the water pump 3 through the coupling 6 to input the coolant between the stator cover 7 and the motor housing 2. The cooling liquid contacts the fins 8 to absorb the heat. After the coolant fills the motor housing 2, it can absorb the heat radiated from the inside of the motor. The coolant flows back to the water pump 3 through the cooling mechanism 4 and the connecting pipe 13, forming a circulating heat dissipation effect. The coupling 6 connects the rotor 5, the water pump 3 and the cooling mechanism 4 as a whole, which reduces the load of the motor without affecting the output efficiency of the motor.

[0042] At the same time, if Figure 1 - Fig.10 As shown, a water outlet pipe 21 is fixedly installed on the bottom side of the motor housing 2, and the end of the water outlet pipe 21 away from the motor housing 2 is connected to the input port of the snap-on cooling mechanism 4, and two symmetrically distributed arc-shaped bimetallic springs 10 are fixedly arranged inside the water outlet pipe 21. The side of the arc-shaped bimetallic spring 10 close to the motor housing 2 is fixedly connected with a soft rubber diaphragm 11, and the end of the soft rubber diaphragm 11 away from the arc-shaped bimetallic spring 10 is fixedly connected to the inner wall of the water outlet pipe 21; the output end of the cooling mechanism 4 is fixedly connected with a connecting pipe 13, and the end of the connecting pipe 13 away from the cooling mechanism 4 is fixedly connected to the input end of the water pump 3, one side of the arc-shaped bimetallic spring 10 is iron and the other side is copper, and the copper sides of the two arc-shaped bimetallic springs 10 are arranged opposite to each other, and the curvature can be increased when heated;

[0043] Among them, when the temperature of the motor is high, the area of ​​the airbag ring 9 due to heat expansion becomes smaller, which reduces the diameter of the water inlet pipe 31 and increases the input speed of the coolant. At the same time, the curvature of the arc-shaped bimetallic spring 10 increases, and the edge expansion of the arc-shaped bimetallic spring 10 drives the soft rubber membrane petal 11 to open to both sides, thereby expanding the diameter of the water outlet pipe 21 and increasing the water outlet flow rate. Therefore, the flow circulation speed of the coolant can be greatly increased, thereby greatly improving the heat dissipation efficiency of the motor.

[0044] In order to solve the problem of coolant evaporation due to heat absorption:

[0045] like Figure 1 - Fig.10As shown, a motor shaft 51 is fixedly installed in the middle of the rotor 5, and the motor shaft 51 passes through the motor housing 2 and extends to both ends of the motor housing 2. The motor shaft 51 is used to drive the impeller inside the water pump 3 to rotate through the coupling 6. A flange 22 is fixedly installed at one end of the motor housing 2, and a gasket 23 is fixedly installed on the side of the flange 22. An exhaust port 14 is fixedly installed on the upper end of the motor housing 2, and a blocking air bag 141 is slidably provided inside the exhaust port 14. A fan box 15 is fixedly installed at one end of the motor housing 2 away from the flange 22, and the upper end of the exhaust port 14 is connected to the fan box 15 through an air pipe. A fan impeller 151 is rotatably provided inside the fan box 15, and a transmission shaft of the fan impeller 151 is fixedly connected to one end of the motor shaft 51. The motor shaft 51 is used to drive the fan impeller 151 to rotate to make the fan box 15 work;

[0046] In the process of the rotor 5 driving the motor shaft 51 to rotate, the motor shaft 51 drives the fan impeller 151 to rotate, and the coolant vapor after absorbing heat and evaporating passes through the exhaust port 14. The blocking airbag 141 can prevent the coolant gushing out from the water pump inlet pipe 31 from overflowing, and is discharged through the air pipe and the fan box 15. When the coolant is insufficient, the blocking airbag 141 will slide downward, and the staff can open the exhaust port 14 cover to add coolant.

[0047] Further, such as Figure 1 - Fig.10 As shown, the cooling mechanism 4 includes two curved tubes 41 distributed up and down and a semiconductor refrigerator 43 fixedly installed on the bottom plate 1. The two ends of the two curved tubes 41 are connected to the water outlet pipe 21 and one end of the connecting pipe 13 through a three-way pipe 42 respectively; the semiconductor refrigerator 43 is fixedly installed on the upper end of one side of the bottom plate 1 corresponding to the cooling mechanism 4, and a plurality of evenly distributed heat sinks 44 are fixedly arranged on the semiconductor refrigerator 43. The heat sink 44 passes through the gap at the bend of the two curved tubes 41 and extends to the upper end of the cooling mechanism 4. The three-way pipe 42 evenly delivers the coolant sucked out of the water outlet pipe 21 into the two curved tubes 41. The outer wall of the curved tube 41 contacts the heat sink 44 to quickly cool the coolant.

[0048] At the same time, if Figure 1 - Fig.10As shown, the bottom plate 1 is fixedly mounted with a sliding rheostat 17, the sliding rheostat 17 is fixedly arranged on the bottom side of the motor housing 2, a guide rod 171 is fixedly mounted on one side of the sliding rheostat 17, a temperature sensing cap 172 is fixedly mounted on the guide rod 171, the temperature sensing cap 172 extends to the inside of the motor housing 2, a temperature sensing liquid cavity 173 is opened inside the temperature sensing cap 172, a slider 174 is slidably arranged inside the temperature sensing cap 172, the slider 174 is sleeved on the outside of the guide rod 171, and the slider 174 is fixedly mounted on the outside of the guide rod 171. An electrode block 175 is fixedly provided on one side of the temperature sensing cap 174, and the electrode block 175 contacts one side of the sliding rheostat 17. The electrode block 175 and the sliding rheostat 17 are respectively connected in series to the power supply circuit of the semiconductor refrigerator 43 through wires; a heat conducting pipe 176 is fixedly provided on the upper end of the temperature sensing cap 172, and the heat conducting pipe 176 contacts the cooling water between the motor housing 2 and the rotor 5. An oil seal 177 is fixedly provided on the bottom end of the temperature sensing cap 172, and the oil seal 177 can prevent the temperature sensing liquid from flowing out;

[0049] Among them, when the temperature of the coolant in the motor housing continues to rise, the heat pipe 176 can introduce the high temperature into the temperature-sensitive liquid. The temperature-sensitive liquid in the temperature-sensitive liquid chamber 173 expands due to the heat, pushing the slider 174 to slide along the guide rod 171. During the sliding of the guide rod 171, the electrode block 175 slides downward and contacts one side of the sliding rheostat 17. The higher the temperature, the smaller the resistance of the sliding rheostat 17. At the same time, the greater the current of the semiconductor refrigerator 43, the higher the power of the semiconductor refrigerator 43, the better the cooling effect. The cooling effect of the cooling mechanism 4 can be adjusted according to the use of the motor, which is more energy-saving. The heat dissipation effect is doubled when combined with the water pump 3.

[0050] Furthermore, if Figure 1 - Fig.10 As shown, a check valve 131 is fixedly provided on the connecting pipe 13, a filter screen is fixedly provided inside the check valve 131, two support seats 24 are fixedly provided on the bottom side of the motor housing 2, and the support seats 24 are fixedly installed on the base plate 1 by bolts. The check valve 131 can prevent the coolant from flowing back, the filter screen can filter the impurities in the coolant, and the sliding rheostat 17 is arranged between the two support seats 24 to play a protective role.

[0051] like Figure 1 - Fig.10 As shown, the principle of the water cooling mechanism motor provided in this embodiment is as follows:

[0052] The heat generated by the rotor 5 and the stator cover 7 is conducted out through the fins 8 in the form of heat conduction and heat convection. The rotor 5 drives the water pump 3 to work through the coupling 6 to input the coolant between the stator cover 7 and the motor housing 2. The cooling liquid contacts the fins 8 to absorb the heat. After the coolant fills the motor housing 2, it can absorb the heat radiated from the inside of the motor. The coolant flows back to the water pump 3 through the cooling mechanism 4 and the connecting pipe 13, forming a circulating heat dissipation effect. When the temperature of the motor is high, the area of ​​the airbag ring 9 due to heat expansion becomes smaller, which reduces the diameter of the water inlet pipe 31, and can increase the input speed of the coolant. At the same time, the curvature of the arc-shaped bimetallic spring 10 becomes larger, and the arc-shaped bimetallic spring The expansion of the edge of the sheet 10 drives the soft rubber membrane petal 11 to open to both sides, thereby expanding the diameter of the water outlet pipe 21, which can increase the water outlet flow rate. When the temperature of the coolant continues to rise, the heat pipe 176 can introduce the high temperature into the temperature-sensitive liquid. The temperature-sensitive liquid in the temperature-sensitive liquid cavity 173 expands due to the heat, pushing the slider 174 to slide along the guide rod 171. During the sliding of the guide rod 171, the electrode block 175 slides downward and contacts one side of the sliding rheostat 17. The higher the temperature, the smaller the resistance of the sliding rheostat 17. At the same time, the greater the current of the semiconductor refrigerator 43, the higher the power of the semiconductor refrigerator 43, the better the cooling effect. The cooling effect of the cooling mechanism 4 can be adjusted according to the use of the motor.

[0053] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0054] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0055] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A water-cooled motor, comprising a base plate (1) and a motor housing (2) fixedly mounted on the base plate (1), characterized in that: A water pump (3) is fixedly mounted on one side of the motor housing (2) of the base plate (1); a cooling mechanism (4) is fixedly connected to a side of the motor housing (2) away from the water pump (3); a rotor (5) is rotatably arranged inside the motor housing (2); an output end of the rotor (5) extends to both sides of the motor housing (2); a coupling (6) is connected to the output end of the rotor (5); and a drive shaft of the water pump (3) is rotatably arranged inside the coupling (6); A stator cover (7) is fixedly mounted inside the motor housing (2); the rotor (5) is rotatably arranged inside the stator cover (7); a plurality of evenly distributed fins (8) are fixedly mounted on the stator cover (7); the fins (8) correspond to the output end of the water pump (3); the output end of the water pump (3) is fixedly connected to a water inlet pipe (31); the interior of the water pump (3) is connected to the interior of the motor housing (2) through the water inlet pipe (31); an air bag ring (9) is fixedly mounted on the inner wall of the water inlet pipe (31); cooling water flows into between the motor housing (2) and the stator cover (7) through the inner side of the air bag ring (9) and contacts the fins (8); A water outlet pipe (21) is fixedly mounted on the bottom side of the motor housing (2); one end of the water outlet pipe (21) away from the motor housing (2) is butted against the input port of the cooling mechanism (4) via a buckle; two symmetrically distributed arc-shaped bimetallic springs (10) are fixedly arranged inside the water outlet pipe (21); a soft rubber diaphragm (11) is fixedly connected to one side of the arc-shaped bimetallic spring (10) close to the motor housing (2); and one end of the soft rubber diaphragm (11) away from the arc-shaped bimetallic spring (10) is fixedly connected to the inner wall of the water outlet pipe (21); The output end of the cooling mechanism (4) is fixedly connected to a connecting pipe (13); one end of the connecting pipe (13) away from the cooling mechanism (4) is fixedly connected to the input end of the water pump (3); the cooling mechanism (4) comprises two curved tubes (41) distributed up and down and a semiconductor refrigerator (43) fixedly mounted on the bottom plate (1); the two ends of the two curved tubes (41) are respectively connected to the water outlet pipe (21) and one end of the connecting pipe (13) through a three-way pipe (42); A plurality of evenly distributed heat sinks (44) are fixedly mounted on the semiconductor refrigerator (43), and the heat sinks (44) penetrate the gap between the two curved tubes (41) and extend to the upper end of the cooling mechanism (4); The bottom plate (1) is fixedly mounted with a sliding rheostat (17), the sliding rheostat (17) being fixedly arranged on the bottom side of the motor housing (2), a guide rod (171) being fixedly mounted on one side of the sliding rheostat (17), a temperature sensing cap (172) being fixedly mounted on the guide rod (171), the temperature sensing cap (172) extending into the interior of the motor housing (2), and a temperature sensing liquid cavity (173) being provided in the interior of the temperature sensing cap (172); A slider (174) is slidably arranged inside the temperature sensing cap (172), the slider (174) being sleeved on the outside of the guide rod (171), an electrode block (175) being fixedly arranged on one side of the slider (174), the electrode block (175) being in contact with one side of the sliding rheostat (17), the electrode block (175) and the sliding rheostat (17) being respectively connected in series in the power supply circuit of the semiconductor refrigerator (43) via a wire; A heat conducting pipe (176) is fixedly provided at the upper end of the temperature sensing cap (172), the heat conducting pipe (176) is in contact with cooling water between the motor housing (2) and the rotor (5), and an oil seal (177) is fixedly provided at the bottom end of the temperature sensing cap (172).

2. A water-cooled motor according to claim 1, characterized in that: A motor shaft (51) is fixedly mounted in the middle of the rotor (5); the motor shaft (51) penetrates the motor housing (2) and extends to both ends of the motor housing (2); the motor shaft (51) is used to drive the impeller inside the water pump (3) to rotate through the coupling (6); a flange (22) is fixedly mounted on one end of the motor housing (2); a gasket (23) is fixedly mounted on the side of the flange (22).

3. A water-cooling mechanism motor according to claim 2, characterized in that: An exhaust port (14) is fixedly mounted on the upper end of the motor housing (2), a sealing airbag (141) is slidably disposed inside the exhaust port (14), a fan box (15) is fixedly mounted on one end of the motor housing (2) away from the flange (22), the upper end of the exhaust port (14) is connected to the fan box (15) via an air pipe, a fan impeller (151) is rotatably disposed inside the fan box (15), and a transmission shaft of the fan impeller (151) is fixedly connected to one end of the motor shaft (51).

4. The water-cooling mechanism motor according to claim 1, characterized in that: A check valve (131) is fixedly arranged on the connecting pipe (13), and a filter screen is fixedly arranged inside the check valve (131).

5. The water-cooling mechanism motor according to claim 1, characterized in that: Two support seats (24) are fixedly provided on the bottom side of the motor housing (2), and the support seats (24) are fixedly mounted on the bottom plate (1) by means of bolts.

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