An AC asynchronous stepless speed regulation motor

Abstract

The present invention belongs to the technical field of stepless speed regulation motors, and specifically relates to an AC asynchronous stepless speed regulation motor, including a motor. The stepless speed regulation motor of the present invention is provided with a cooling housing, and a cooling medium such as water, cooling oil, etc. is added in the cooling housing. The cooling medium can completely cover the outside of the motor, and the heat on the surface of the motor is transferred to the cooling medium, enabling the motor to have a uniform heat dissipation effect. The motor is supported and fixed in the middle of the cooling housing through a support plate, so that the surrounding of the motor is completely filled with the cooling medium in the cooling housing for sufficient heat dissipation. The rubber pad on the support plate that contacts the surface of the motor can elastically deform to a certain extent. When the motor operates and generates vibrations, the corresponding elastic deformation of the rubber pad cancels the vibration force, enabling the motor to work stably inside the cooling housing. The vibration force during the operation of the motor is not easily transmitted to the outside of the cooling housing, and the cooling medium in the cooling housing directly covers the motor, which also has a certain sound insulation effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of stepless speed regulation motors, and specifically relates to an AC asynchronous stepless speed regulation motor. Background Art

[0002] Stepless speed regulation, abbreviated as CV speed change, is composed of two groups of gears or pulleys with variable diameters, connected by a chain or a belt, and the speed ratio is controlled by changing the diameters of the gears or pulleys. Due to the physical limitations of the belt and the chain, it cannot be used for engines with relatively large torques.

[0003] A stepless speed regulation motor is a motor that changes the rotational speed of the motor by changing methods such as the number of pole pairs, voltage, current, and frequency of the motor, so as to enable the motor to achieve higher performance.

[0004] Due to its excellent performance, the speed regulation motor has been widely used in industrial sectors such as steel, power stations, cables, chemical industry, petroleum, cement, textiles, printing and dyeing, papermaking, and machinery for stepless speed regulation of load machinery with constant torque or decreasing torque. It is especially suitable for driving pumps and fans with relatively large flow rate changes, and can achieve good energy-saving effects.

[0005] In the prior art, the heat dissipation of the stepless speed regulation motor is poor, and the heat dissipation is uneven when dissipating heat through a fan. The vibration force during the start of the stepless speed regulation motor is relatively large, and correspondingly, a relatively large noise is generated.

[0006] Therefore, an AC asynchronous stepless speed regulation motor is provided to solve the above drawbacks. Summary of the Invention

[0007] In order to make up for the deficiencies of the prior art and solve the problems of the stepless speed regulation motor, an AC asynchronous stepless speed regulation motor proposed by the present invention mainly solves the technical problems that the current stepless speed regulation motor has poor heat dissipation, uneven heat dissipation when dissipating heat through a fan, relatively large vibration force during the start of the stepless speed regulation motor, and correspondingly, relatively large noise.

[0008] The technical solution adopted by the present invention to solve its technical problem is: an AC asynchronous stepless speed regulating motor described in the present invention comprises a motor; the motor is coated with a cooling shell on the outside; the cooling shell is a rectangular shell structure with one side open; a first cover is fixed to the opening of the cooling shell by screws; a plurality of rubber pads attached to the outer surface of the motor are arranged in the cooling shell; a plurality of support plates are fixedly welded on the inner wall of the cooling shell; the rubber pads are fixed to the ends of the support plates; the end of the motor is connected to the motor shaft in a driving manner; a slot body recessed toward one side of the motor is arranged at the middle position of the first cover; the bottom of the slot body is integrally provided with a sleeve attached to the surface of the motor and is arranged at the outer ring of the motor shaft; a rectangular groove is arranged at the end of the slot body on the surface of the first cover; the sleeve is fixed to the surface of the motor by screws; conductive connecting electrodes are arranged at both upper and lower ends of the motor; a barrier cylinder recessed toward one side of the motor is integrally provided on the surface of the first cover, and a fixing ring fixed to the surface of the motor by screws is integrally provided at the end of the barrier cylinder; a sealing gasket sealed and attached to the surface of the motor is fixed on the surface of the fixing ring; and the conductive connecting electrode is arranged in the barrier cylinder.

[0009] When working, the motor can drive the motor shaft to rotate, and a cooling medium, such as water, cooling oil, etc., is added to the cooling shell; the cooling medium can completely cover the outside of the motor, and the heat on the surface of the motor is transferred to the cooling medium, so that the motor has the effect of uniform heat dissipation, and the outer ring of the motor shaft on the motor is separated from the cooling medium inside the cooling shell by the groove body, and the conductive connecting pole on the motor is separated from the cooling medium inside the cooling shell by the barrier tube, so that the mechanical energy output end and the electric energy input and output end of the motor can work normally, and the motor is supported and fixed in the middle of the cooling shell by a support plate, so that the surrounding of the motor is completely filled with the cooling medium in the cooling shell, and the heat is fully dissipated. The rubber pad on the support plate that contacts the surface of the motor can be elastically deformed to a certain extent. When the motor is running and vibrating, the corresponding elastic deformation of the rubber pad offsets the vibration force, so that the motor can work stably inside the cooling shell, and the vibration force when the motor is working is not easy to be transmitted to the outside of the cooling shell, and the cooling medium in the cooling shell directly covers the motor, which also has a certain sound insulation effect, so that the sound transmitted when the motor is working is reduced.

[0010] Preferably, the outside of the cooling shell is covered with a thermal insulation shell; the thermal insulation shell is a rectangular shell structure with one side open, and a second cover is fixed to the open end of the thermal insulation shell by screws; the second cover is integrally connected to the first cover; a cooling cavity is formed between the thermal insulation shell and the cooling shell;

[0011] During operation, the heat-insulating housing wraps the outside of the cooling housing, providing a heat-insulating effect to prevent external heat from being transferred to the cooling medium in the cooling housing. The open end of the heat-insulating housing is convenient to open, and the openings of the heat-insulating housing and the cooling housing are integrally provided with a second cover and a first cover for sealing and fixing, and are fixed by screws, which is convenient for overall fixing and connection and ensures good sealing performance.

[0012] Preferably, a sound-absorbing cotton board is provided in the cooling cavity; the sound-absorbing cotton boards are arranged in a plurality of groups in an inclined plate-like structure and intersect with each other; both ends of the sound-absorbing cotton board are respectively fixed on the inner walls of both sides of the cooling cavity; a plurality of groups of sound-absorbing holes penetrating through both surfaces of the sound-absorbing cotton board are provided on the surface of the sound-absorbing cotton board;

[0013] During operation, the plurality of sound-absorbing cotton boards have a sound-absorbing effect, and the sound-absorbing holes on the plurality of sound-absorbing cotton boards allow sound to pass through and gradually decrease until it is eliminated. The overall sound-absorbing cotton board has a good sound-absorbing and sound-insulating effect, and the sound-absorbing cotton board is located in the cooling cavity, and the cooling cavity wraps the outside of the motor and the cooling housing, preventing the sound from the motor during operation from being transmitted. In the device, the sound insulation of the motor mainly consists of two aspects: on the one hand, when the motor vibrates in the cooling housing, the rubber pad that can be elastically deformed reduces the vibration and thus reduces the generation of noise; on the other hand, the sound-absorbing cotton board in the cooling cavity has the function of wrapping the outside of the motor and absorbing and blocking the sound transmitted from the motor, and the sound insulation effect is good.

[0014] Preferably, a heat exchange housing is wrapped outside the heat-insulating housing; a heat exchange cavity is formed between the heat exchange housing and the heat-insulating housing; a plurality of groups of metal cooling housings recessed inward in a concave shape are provided on the side surface of the heat exchange housing; a metal cooling plate body inserted into the concave shape inside the metal cooling housing is fixedly provided on the outer surface of the heat-insulating housing; the heat exchange housing has a rectangular housing structure with one end open, and a third cover is fixed by screws at the opening of the heat exchange housing; the third cover is integrally provided with the second cover;

[0015] During operation, the cooling medium stored in the cooling housing can flow into the heat exchange cavity, and the cooling medium flowing in the heat exchange cavity circulates back and forth through the gap between the metal cooling housing and the metal cooling plate body. The heat in the cooling medium can be transferred to the outside of the heat exchange housing through the inner wall of the metal cooling housing and carried away by the natural wind, achieving the purpose of keeping the temperature of the cooling medium consistent with the external temperature. When the cooling medium with the same temperature as the outside wraps the outside of the motor, the motor can be cooled to the same temperature as the outside, achieving a good cooling effect. In actual use, its cooling effect may deviate and decrease due to other external force factors, but it can still achieve a good cooling effect.

[0016] Preferably, a second pipe communicating between the cooling housing and the heat exchange chamber is provided above one side of the motor; a first pipe communicating between the cooling housing and the heat exchange chamber is provided below one side of the motor; a power unit communicating with the end of the first pipe is provided in the heat exchange chamber; a first partition is fixedly welded above the first pipe on the inner wall of the first cover; the first partition seals the gap between the motor and the first cover; a second partition is fixedly welded above the inner wall of one end of the cooling housing close to the first cover; the second partition is arranged between the second pipe and the motor;

[0017] During operation, the power unit pumps the cooling medium cooled by the metal cooling housing in the heat exchange chamber into the first pipe and discharges it into the cooling housing. Since the first partition seals the gap between the motor and the first cover, the cooling medium entering through the first pipe will be guided by the first partition and flow to the rear of the motor, and then pass above the motor. After being guided again by the second partition, it enters the heat exchange chamber through the second pipe for circulation. The combination of the second partition and the first partition can achieve the effect of enabling the cooling medium in the cooling housing to fully and evenly flow outside the motor in the cooling housing to achieve uniform cooling. The outside of the motor is covered by the wrapped cooling medium, and the cooling is uniform. The power unit can use devices such as water pumps.

[0018] Preferably, a discharge pipe communicating inside and outside the heat exchange chamber is provided above one side of the heat exchange housing; a discharge pipe communicating inside and outside the heat exchange chamber is provided below the third cover; plugs are connected to the discharge pipe and the discharge pipe by screw threads;

[0019] During operation, when the plug at the discharge pipe is opened, the cooling medium can be added to the heat exchange chamber and the cooling housing. When the plug at the discharge pipe is opened, the cooling medium in the heat exchange chamber and the cooling housing can be discharged from the discharge pipe, which is convenient for replacement and use.

[0020] Preferably, an installation groove is provided in the barrier cylinder; an insulating hollow rod is movably inserted into the installation groove; a plugging block that is hermetically fitted to the inner ring of the barrier cylinder is fixedly provided at the end of the insulating hollow rod; a socket is integrally provided at one end of the insulating hollow rod away from the motor;

[0021] During operation, when the insulating hollow rod is in the installation groove, the plugging block is clamped in the barrier cylinder to complete the fixation of the insulating hollow rod. The insulating hollow rod is made of insulating material, and the socket is used for an external wire rod to be inserted into the socket to complete the electrical connection with the motor.

[0022] Preferably, a conductive rod is provided inside the insulating hollow rod; a slot is provided at the end of the conductive rod; the conductive connection pole is movably inserted into the slot; an arc surface is provided at the end of the conductive rod outside the slot;

[0023] During operation, when the conductive connection pole is movably inserted into the conductive rod, the conductive connection pole is electrically connected to the conductive rod. The two groups of conductive connection poles are respectively the positive and negative poles of the motor. When corresponding power-conductive heads with power sources are inserted into the two sockets and are in contact with the conductive rod to form an electrical connection, a complete circuit is formed and the motor can operate normally. An arc surface is provided at the outer circle of the slot at the end of the conductive rod. When the conductive rod is inserted into the insulating hollow rod, the end of the conductive connection pole can quickly avoid contact with the arc surface and is easily inserted into the slot, forming a rapid electrical connection relationship.

[0024] Preferably, one end of the barrier cylinder away from the motor passes through the outside of the third cover; the third cover, the second cover, the first cover and the barrier cylinder are integrally connected;

[0025] During operation, first, the cooling housing is assembled outside the motor, and the screws on the first cover are fixed. Then, the heat-insulating housing is sleeved outside the cooling housing, and the screws on the second cover are fixed. Finally, the heat-exchanging housing is sleeved, and the screws on the third cover are fixed. Installation is carried out step by step and fixed step by step, and the first cover, the second cover and the third cover fixed step by step are integrally arranged, with stable structure.

[0026] Preferably, the metal cooling plate body has a rectangular plate-like structure; there are certain gaps between the end and the side of the metal cooling plate body and the bottom and the side of the metal cooling housing respectively;

[0027] During operation, the cooling medium flowing through the heat-exchanging cavity passes through the gap between the metal cooling housing and the metal cooling plate body. When the cooling medium directly passes through the gap between the metal cooling housing and the metal cooling plate body, heat exchange with the outside is carried out through the metal cooling housing to cool down, and the heat in the cooling medium is discharged. Moreover, the matching structure of the metal cooling housing and the metal cooling plate body increases the contact area during the heat exchange of the cooling medium and enhances the cooling effect.

[0028] Preferably, the support plate has a rectangular plate-like structure; multiple groups of support plates are arranged around the four sides and the bottom surface of the motor; the width of the support plate is equal to the width of the motor, and the width of the support plate is less than the width of the cooling housing;

[0029] During operation, multiple groups of support plates with the same width as the motor can provide good support for the motor, with stable support. Moreover, the width of the support plate is less than the width of the cooling housing to facilitate the direct circulation of the cooling medium in the cooling housing.

[0030] The beneficial effects of the present invention are as follows:

[0031] 1. An AC asynchronous stepless speed regulation motor according to the present invention is provided with a cooling housing, and a cooling medium such as water, cooling oil, etc. is added to the cooling housing; the cooling medium can completely cover the outside of the motor, and the heat on the motor surface is transferred to the cooling medium, enabling the motor to have a uniform heat dissipation effect. The motor is supported and fixed in the middle of the cooling housing through a support plate, so that the surrounding of the motor is completely filled with the cooling medium in the cooling housing for sufficient heat dissipation. The rubber pad on the support plate that contacts the motor surface can elastically deform to a certain extent. When the motor operates and vibrates, the corresponding elastic deformation of the rubber pad cancels the vibration force, enabling the motor to stably operate inside the cooling housing. The vibration force during the operation of the motor is not easily transmitted to the outside of the cooling housing, and the cooling medium in the cooling housing directly wraps the motor, also having a certain sound insulation effect, reducing the sound transmitted during the operation of the motor.

[0032] 2. An AC asynchronous stepless speed regulation motor according to the present invention is provided with a heat insulation housing that wraps the outside of the cooling housing to achieve a heat insulation effect and prevent external heat from being transferred to the cooling medium in the cooling housing. The cooling cavity is provided with sound-absorbing cotton boards. Multiple groups of sound-absorbing cotton boards have a sound-absorbing effect, and the sound-absorbing holes on the multiple groups of sound-absorbing cotton boards allow sound to be transmitted and gradually reduced to elimination. The overall sound-absorbing cotton board has a good sound-absorbing and sound-insulating effect, and the sound-absorbing cotton board is located in the cooling cavity, and the cooling cavity wraps the outside of the motor and the cooling housing, preventing the sound from the motor during operation from being transmitted.

[0033] 3. An AC asynchronous stepless speed regulation motor according to the present invention is provided with a heat exchange housing. A heat exchange cavity is formed between the heat exchange housing and the heat insulation housing. The cooling medium stored in the cooling housing can flow in the heat exchange cavity. The cooling medium flowing in the heat exchange cavity circulates back and forth through the gap between the metal cooling housing and the metal cooling plate body. The heat in the cooling medium can be transferred to the outside of the heat exchange housing through the inner wall of the metal cooling housing and carried away by natural wind, achieving the purpose of keeping the temperature of the cooling medium consistent with the external temperature. When the cooling medium with the same temperature as the outside wraps the outside of the motor, the motor can be cooled to the same temperature as the outside, achieving a good cooling effect. In actual use, its cooling effect may be reduced due to other external force factors, but it can still achieve a good cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described below with reference to the accompanying drawings.

[0035] Figure 1 is a schematic structural diagram of the present invention;

[0036] Figure 2 is a side view of the present invention;

[0037] Figure 3 is a front view of the present invention;

[0038] Figure 4 is a cross-sectional view of the present invention;

[0039] Figure 5 is Figure 1 a partially enlarged view at position A in

[0040] Figure 6 is Figure 4 a partially enlarged view at position B in

[0041] Figure 7 is Figure 4 a partially enlarged view at position C in

[0042] Figure 8 is Figure 4 a partially enlarged view at position D in

[0043] In the figure: motor 1, cooling housing 2, cooling cavity 3, heat insulation housing 4, heat exchange housing 5, heat exchange cavity 6, sound absorption cotton board 7, sound absorption holes 8, support plate 9, plug 10, discharge pipe 11, second cover 12, first cover 13, third cover 14, installation groove 15, rectangular groove 16, motor rotating shaft 17, tank 18, insulating hollow rod 19, socket 20, inlet pipe 21, metal cooling housing 22, metal cooling plate body 23, second partition 24, second pipe 25, rubber pad 26, first partition 27, first pipe 28, power unit 29, barrier cylinder 30, conductive rod 31, slot 32, fixing ring 33, conductive connection pole 34, arc surface 35, gasket 36. Detailed implementation manners

[0044] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0045] As shown in Figures 1 to 8As shown in the figure, an AC asynchronous stepless speed regulation motor according to the present invention includes a motor 1; the outside of the motor 1 is covered with a cooling housing 2; the cooling housing 2 has a rectangular housing structure with an opening on one side; a first cover 13 is fixed to the opening of the cooling housing 2 by screws; a plurality of rubber pads 26 that fit on the outer surface of the motor 1 are provided in the cooling housing 2; a plurality of support plates 9 are fixedly welded on the inner wall of the cooling housing 2; the rubber pads 26 are fixed to the ends of the support plates 9; the end of the motor 1 is drivingly connected to a motor shaft 17; a groove 18 that is recessed toward the motor 1 is provided at the middle position of the first cover 13; a 37 that fits on the surface of the motor 1 is integrally provided at the bottom of the groove 18, and the 37 is sleeved on the outer ring of the motor shaft 17; a rectangular groove 16 located at the end of the groove 18 is provided on the surface of the first cover 13; the 37 is fixed to the surface of the motor 1 by screws; conductive connection poles 34 are provided at both the upper and lower ends of the motor 1; a barrier cylinder 30 that is recessed toward the motor 1 is integrally provided on the surface of the first cover 13, and a fixing ring 33 that is fixed to the surface of the motor 1 by screws is integrally provided at the end of the barrier cylinder 30; a gasket 36 that is hermetically fitted on the surface of the motor 1 is fixedly provided on the surface of the fixing ring 33; the conductive connection poles 34 are provided in the barrier cylinder 30.

[0046] During operation, the motor 1 can drive the motor shaft 17 to rotate. A cooling medium, such as water, cooling oil, etc., is added to the cooling housing 2; the cooling medium can completely cover the outside of the motor 1, and the heat on the surface of the motor 1 is transferred to the cooling medium, enabling the motor 1 to have a uniform heat dissipation effect. The outer ring of the motor shaft 17 on the motor 1 is separated from the cooling medium inside the cooling housing 2 through the groove 18, and the conductive connection poles 34 on the motor 1 are separated from the cooling medium inside the cooling housing 2 through the barrier cylinder 30, enabling the mechanical energy output end and the electrical energy input and output ends of the motor 1 to work normally. The motor 1 is supported and fixed in the middle of the cooling housing 2 through the support plates 9, so that the surrounding of the motor 1 is completely filled with the cooling medium in the cooling housing 2 for sufficient heat dissipation. The rubber pads 26 in contact with the surface of the motor 1 on the support plates 9 can elastically deform to a certain extent, and the corresponding elastic deformation of the rubber pads 26 cancels the vibration force when the motor 1 operates and vibrates, enabling the motor 1 to work stably inside the cooling housing 2. The vibration force during the operation of the motor 1 is not easily transmitted to the outside of the cooling housing 2, and the cooling medium in the cooling housing 2 directly covers the motor 1, which also has a certain sound insulation effect, reducing the sound transmitted during the operation of the motor 1.

[0047] As an embodiment of the present invention, a heat insulation housing 4 is covered on the outside of the cooling housing 2; the heat insulation housing 4 has a rectangular housing structure with an opening on one side, and a second cover 12 is fixed to the open end of the heat insulation housing 4 by screws; the second cover 12 is integrally connected to the first cover 13; a cooling cavity 3 is formed between the heat insulation housing 4 and the cooling housing 2.

[0048] During operation, the heat-insulating housing 4 wraps the outside of the cooling housing 2, providing a heat-insulating effect to prevent external heat from being transferred to the cooling medium in the cooling housing 2. The open end of the heat-insulating housing 4 is convenient to open, and the openings of the heat-insulating housing 4 and the cooling housing 2 are integrally provided with a second cover 12 and a first cover 13 for sealing and fixing, which are fixed by screws, facilitating overall fixing and connection and ensuring good sealing performance.

[0049] As an implementation manner of the present invention, a sound-absorbing cotton board 7 is provided in the cooling cavity 3; the sound-absorbing cotton boards 7 are arranged in a plurality of groups in an inclined plate-like structure and are staggered; both ends of the sound-absorbing cotton board 7 are respectively fixed on the inner walls of both sides of the cooling cavity 3; a plurality of sound-absorbing holes 8 penetrating through both surfaces of the sound-absorbing cotton board 7 are provided on the surface of the sound-absorbing cotton board 7.

[0050] During operation, the plurality of sound-absorbing cotton boards 7 have a sound-absorbing effect, and the sound-absorbing holes 8 on the plurality of sound-absorbing cotton boards 7 allow sound to be transmitted and gradually reduced until eliminated. The overall sound-absorbing cotton board 7 has a good sound-absorbing and sound-insulating effect. Moreover, the sound-absorbing cotton board 7 is located in the cooling cavity 3, and the cooling cavity 3 wraps the outside of the motor 1 and the cooling housing 2, preventing the sound generated during the operation of the motor 1 from being transmitted. In the device, the sound insulation of the motor 1 mainly consists of two aspects: on the one hand, when the motor 1 vibrates in the cooling housing 2, the rubber pad 26 that can be elastically deformed reduces the vibration and thus reduces the generation of noise; on the other hand, the sound-absorbing cotton board 7 in the cooling cavity 3 has the function of wrapping the outside of the motor 1 and absorbing and blocking the sound transmitted from the motor 1, with good sound insulation effect.

[0051] As an implementation manner of the present invention, a heat exchange housing 5 is wrapped outside the heat-insulating housing 4; a heat exchange cavity 6 is formed between the heat exchange housing 5 and the heat-insulating housing 4; a plurality of metal cooling housings 22 recessed inward in a concave shape are provided on the side surface of the heat exchange housing 5; a metal cooling plate body 23 inserted into the concave-shaped interior of the metal cooling housing 22 is fixedly provided on the outer surface of the heat-insulating housing 4; the heat exchange housing 5 has a rectangular housing structure with one end open, and a third cover 14 is fixed by screws at the opening of the heat exchange housing 5; the third cover 14 is integrally provided with the second cover 12.

[0052] During operation, the cooling medium stored in the cooling housing 2 can flow through the heat exchange chamber 6. The cooling medium flowing through the heat exchange chamber 6 circulates back and forth through the gap between the metal cooling housing 22 and the metal cooling plate body 23. The heat in the cooling medium can be transferred to the outside of the heat exchange housing 5 through the inner wall of the metal cooling housing 22 and taken away by the natural wind, achieving the purpose of keeping the temperature of the cooling medium consistent with the external temperature. When the cooling medium with the same temperature as the outside wraps around the motor 1, the motor 1 can be cooled down to the same temperature as the outside, achieving a good cooling effect. In actual use, its cooling effect may deviate and decrease due to other external force factors, but it can still achieve a good cooling effect.

[0053] As an embodiment of the present invention, a second pipe 25 communicating between the cooling housing 2 and the heat exchange chamber 6 is provided above one side of the motor 1; a first pipe 28 communicating between the cooling housing 2 and the heat exchange chamber 6 is provided below one side of the motor 1; a power unit 29 communicating with the end of the first pipe 28 is provided in the heat exchange chamber 6; a first partition plate 27 is fixedly welded above the first pipe 28 on the inner wall of the first cover 13; the first partition plate 27 seals the gap between the motor 1 and the first cover 13; above the inner wall of one end of the cooling housing 2 close to the first cover 13, a second partition plate 24 is fixedly welded; the second partition plate 24 is arranged between the second pipe 25 and the motor 1;

[0054] During operation, the power unit 29 pumps the cooling medium cooled by the metal cooling housing 22 in the heat exchange chamber 6 into the first pipe 28 and discharges it into the cooling housing 2. Since the first partition plate 27 seals the gap between the motor 1 and the first cover 13, the cooling medium entering through the first pipe 28 will be guided by the first partition plate 27 and flow to the rear of the motor 1, and then pass over the motor 1 and be guided again by the second partition plate 24 and enter the heat exchange chamber 6 through the second pipe 25 for circulation. The combination of the second partition plate 24 and the first partition plate 27 can achieve the effect of enabling the cooling medium in the cooling housing 2 to fully and evenly flow outside the motor 1 in the cooling housing 2 to achieve uniform cooling. The outside of the motor 1 is covered by the wrapped cooling medium, and the cooling is uniform. The power unit 29 can use devices such as water pumps.

[0055] As an embodiment of the present invention, a discharge pipe 21 communicating inside and outside the heat exchange chamber 6 is provided above one side of the heat exchange housing 5; a discharge pipe 11 communicating inside and outside the heat exchange chamber 6 is provided below the third cover 14; plugs 10 are connected to both the discharge pipe 11 and the discharge pipe 21 by screw fit;

[0056] During operation, when the plug 10 at the discharge pipe 21 is opened, a cooling medium can be added to the heat exchange chamber 6 and the cooling housing 2. When the plug 10 at the discharge pipe 11 is opened, the cooling medium in the heat exchange chamber 6 and the cooling housing 2 can be discharged from the discharge pipe 11, facilitating replacement and use.

[0057] As an embodiment of the present invention, an installation groove 15 is provided in the barrier cylinder 30; an insulating hollow rod 19 is movably inserted into the installation groove 15; a plugging block that is hermetically fitted to the inner ring of the barrier cylinder 30 is fixedly provided at the end of the insulating hollow rod 19; a socket 20 is integrally provided at one end of the insulating hollow rod 19 away from the motor 1;

[0058] During operation, when the insulating hollow rod 19 is in the installation groove 15, the plugging block is clamped in the barrier cylinder 30 to complete the fixation of the insulating hollow rod 19. The insulating hollow rod 19 is made of an insulating material, and the socket 20 is used for an external wire rod to be inserted into the socket 20 to complete the electrical connection with the motor 1.

[0059] As an embodiment of the present invention, a conductive rod 31 is provided inside the insulating hollow rod 19; a slot 32 is provided at the end of the conductive rod 31; the conductive connection pole 34 is movably inserted into the slot 32; an arc surface 35 is provided at the outer circle of the end of the conductive rod 31 located at the slot 32;

[0060] During operation, when the conductive connection pole 34 is movably inserted into the conductive rod 31, the conductive connection pole 34 is electrically connected to the conductive rod 31. The two conductive connection poles 34 are respectively the positive and negative poles of the motor 1. When corresponding conductive heads with power sources are inserted into the two sockets 20 and are in contact with the conductive rod 31 to form an electrical connection, a complete circuit is formed and the motor 1 can operate normally. An arc surface 35 is provided at the outer circle of the end of the conductive rod 31 located at the slot 32, which facilitates the rapid avoidance of contact between the end of the conductive connection pole 34 and the arc surface 35 when the conductive rod 31 is inserted into the insulating hollow rod 19, making it easy to insert into the slot 32 to form a rapid electrical connection relationship.

[0061] As an embodiment of the present invention, one end of the barrier cylinder 30 away from the motor 1 passes through the outside of the third cover 14; the third cover 14, the second cover 12, the first cover 13 and the barrier cylinder 30 are integrally connected;

[0062] During operation, first, the cooling housing 2 is spliced outside the motor 1, and the screws on the first cover 13 are fixed. Then, the heat insulation housing 4 is sleeved outside the cooling housing 2, and the screws on the second cover 12 are fixed. Finally, the heat exchange housing 5 is sleeved, and the screws on the third cover 14 are fixed. Installation is carried out step by step, fixation is carried out step by step, and the first cover 13, the second cover 12 and the third cover 14 that are fixed are integrally arranged, with stable structure.

[0063] As an embodiment of the present invention, the metal cooling plate body 23 has a rectangular plate-like structure; there is a certain gap between the end and side surfaces of the metal cooling plate body 23 and the bottom and side surfaces of the metal cooling housing 22 respectively;

[0064] During operation, the cooling medium flowing through the heat exchange chamber 6 passes through the gap between the metal cooling housing 22 and the metal cooling plate body 23. When the cooling medium directly passes through the gap between the metal cooling housing 22 and the metal cooling plate body 23, heat exchange with the outside is carried out through the metal cooling housing 22 to cool down, and the heat in the cooling medium is discharged. Moreover, the matching structure of the metal cooling housing 22 and the metal cooling plate body 23 increases the contact area during the heat exchange of the cooling medium, enhancing the cooling effect.

[0065] As an embodiment of the present invention, the support plate 9 has a rectangular plate-like structure; multiple groups of support plates 9 are arranged around the four side surfaces and the bottom surface of the motor 1; the width of the support plate 9 is equal to the width of the motor 1, and the width of the support plate 9 is less than the width of the cooling housing 2;

[0066] During operation, multiple groups of support plates 9 with the same width as the motor 1 can provide good support for the motor 1, with stable support. Moreover, the width of the support plate 9 is less than the width of the cooling housing 2 to facilitate the direct circulation of the cooling medium in the cooling housing 2.

[0067] The specific working process of the present invention is as follows:

[0068] Start the power unit 29. The power unit 29 pumps the cooling medium in the heat exchange chamber 6 into the cooling housing 2. Under the guidance of the first partition 27, the cooling medium circulates around the outside of the motor 1 and then enters the heat exchange chamber 6 again at the position of the second partition 24, discharging the heat carried away from the surface of the motor 1 in the cooling medium.

[0069] By setting the cooling housing 2, a cooling medium such as water, cooling oil, etc. is added to the cooling housing 2; the cooling medium can completely cover the outside of the motor 1, and the heat on the surface of the motor 1 is transferred to the cooling medium, enabling the motor 1 to have a uniform heat dissipation effect. The motor 1 is supported and fixed in the middle of the cooling housing 2 through the support plate 9, so that the surrounding of the motor 1 is completely filled with the cooling medium in the cooling housing 2 for sufficient heat dissipation. The rubber pad 26 on the support plate 9 that contacts the surface of the motor 1 can elastically deform to a certain extent. When the motor 1 operates and generates vibration, the corresponding elastic deformation of the rubber pad 26 cancels the vibration force, enabling the motor 1 to work stably inside the cooling housing 2. The vibration force during the operation of the motor 1 is not easily transmitted to the outside of the cooling housing 2, and the cooling medium in the cooling housing 2 directly covers the motor 1, also having a certain sound insulation effect, reducing the sound transmitted during the operation of the motor 1. By setting the heat insulation housing 4, the heat insulation housing 4 covers the outside of the cooling housing 2, achieving a heat insulation effect and preventing external heat from being transferred to the cooling medium in the cooling housing 2. The sound absorption cotton board 7 is provided in the cooling cavity 3. Multiple groups of sound absorption cotton boards 7 have a sound absorption effect, and the sound absorption holes 8 on the multiple groups of sound absorption cotton boards 7 allow sound to be transmitted and gradually reduced until eliminated. The overall sound absorption cotton board 7 has a good sound absorption and sound insulation effect, and the sound absorption cotton board 7 is located in the cooling cavity 3, and the cooling cavity 3 covers the outside of the motor 1 and the cooling housing 2, preventing the sound from the motor 1 from being transmitted during operation. By setting the heat exchange housing 5, a heat exchange cavity 6 is formed between the heat exchange housing 5 and the heat insulation housing 4. The cooling medium stored in the cooling housing 2 can flow in the heat exchange cavity 6. The cooling medium flowing in the heat exchange cavity 6 circulates back and forth through the gap between the metal cooling housing 22 and the metal cooling plate body 23. The heat in the cooling medium can be transferred through the inner wall of the metal cooling housing 22 to the outside of the heat exchange housing 5 and carried away by the natural wind, achieving the purpose of keeping the temperature of the cooling medium consistent with the outside temperature. When the cooling medium with the same temperature as the outside covers the outside of the motor 1, the motor 1 can be cooled to the same temperature as the outside, achieving a good cooling effect. In actual use, its cooling effect may deviate and decrease due to other external force factors, but it can still achieve a good cooling effect.

[0070] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An AC asynchronous stepless speed regulation motor, characterized in that: It includes a motor (1); the outside of the motor (1) is covered with a cooling housing (2); the cooling housing (2) has a rectangular housing structure with an opening on one side; a first cover (13) is fixed to the opening of the cooling housing (2) by screws; multiple groups of rubber pads (26) that fit on the outer surface of the motor (1) are provided in the cooling housing (2); multiple groups of support plates (9) are fixedly welded on the inner wall of the cooling housing (2); the rubber pads (26) are fixed to the ends of the support plates (9); a motor shaft (17) is drivingly connected to the end of the motor (1); a groove (18) that is recessed towards the motor (1) is provided at the middle position of the first cover (13); a surface (37) that fits on the surface of the motor (1) is integrally provided at the bottom of the groove (18), and the surface (37) is sleeved on the outer ring of the motor shaft (17); a rectangular groove (16) located at the end of the groove (18) is provided on the surface of the first cover (13); the surface (37) is fixed to the surface of the motor (1) by screws; conductive connection poles (34) are provided at both the upper and lower ends of the motor (1); a barrier cylinder (30) that is recessed towards the motor (1) is integrally provided on the surface of the first cover (13), and a fixing ring (33) that is fixed to the surface of the motor (1) by screws is integrally provided at the end of the barrier cylinder (30); a sealing gasket (36) that is hermetically fitted on the surface of the motor (1) is fixedly provided on the surface of the fixing ring (33); the conductive connection poles (34) are provided in the barrier cylinder (30); A cooling cavity (3) is formed between the heat insulation housing (4) and the cooling housing (2); a sound-absorbing cotton board (7) is provided in the cooling cavity (3); the sound-absorbing cotton board (7) has an inclined plate-like structure and multiple groups are arranged in an interlaced manner; both ends of the sound-absorbing cotton board (7) are respectively fixed to the inner walls on both sides of the cooling cavity (3); multiple groups of sound-absorbing holes (8) that penetrate through both surfaces of the sound-absorbing cotton board (7) are provided on the surface of the sound-absorbing cotton board (7); The outer part of the heat-insulating housing (4) is covered with a heat-exchanging housing (5); a heat-exchanging cavity (6) is formed between the heat-exchanging housing (5) and the heat-insulating housing (4); on the side surface of the heat-exchanging housing (5), there are multiple groups of metal cooling housings (22) recessed inward in a concave shape; on the outer surface of the heat-insulating housing (4), a metal cooling plate body (23) is fixedly arranged and inserted into the concave-shaped interior of the metal cooling housing (22); above one side of the motor (1), there is a second pipe (25) communicating between the cooling housing (2) and the heat-exchanging cavity (6); below one side of the motor (1), there is a first pipe (28) communicating between the cooling housing (2) and the heat-exchanging cavity (6); in the heat-exchanging cavity (6), there is a power unit (29) connected to the end of the first pipe (28); the power unit (29) pumps the cooling medium in the heat-exchanging cavity (6) into the cooling housing (2), and through the guiding of the first partition plate (27), the cooling medium circulates around the outside of the motor (1), and then enters the heat-exchanging cavity (6) again from the position of the second partition plate (24), and transfers the heat carried away from the surface of the motor (1) in the cooling medium; on the inner wall of the first cover (13) above the first pipe (28), a first partition plate (27) is fixedly welded; the first partition plate (27) seals the gap between the motor (1) and the first cover (13); above the inner wall of one end of the cooling housing (2) close to the first cover (13), a second partition plate (24) is fixedly welded; the second partition plate (24) is arranged between the second pipe (25) and the motor (1). Above one side of the heat-exchanging housing (5), there is a discharge pipe (21) communicating inside and outside the heat-exchanging cavity (6); below the third cover (14), there is a discharge pipe (11) communicating inside and outside the heat-exchanging cavity (6); on both the discharge pipe (11) and the discharge pipe (21), there are plugs (10) connected by thread fitting. In the barrier cylinder (30), there is an installation groove (15); in the installation groove (15), an insulating hollow rod (19) is movably inserted; at the end of the insulating hollow rod (19), a plugging block is fixedly arranged and sealed and fitted to the inner circle of the barrier cylinder (30); at one end of the insulating hollow rod (19) away from the motor (1), a socket (20) is integrally provided. Inside the insulating hollow rod (19), there is a conductive rod (31); at the end of the conductive rod (31), there is a slot (32); the conductive connecting pole (34) is movably inserted into the slot (32); at the outer circle of the slot (32) at the end of the conductive rod (31), there is an arc surface (35).

2. The AC asynchronous stepless speed regulation motor according to claim 1, wherein: One end of the barrier cylinder (30) away from the motor (1) passes through the outside of the third cover (14); the third cover (14), the second cover (12), the first cover (13) and the barrier cylinder (30) are integrally connected.

3. The AC asynchronous stepless speed regulation motor according to claim 1, characterized in that: The metal cooling plate body (23) has a rectangular plate-like structure; there are certain gaps between the end and the side surface of the metal cooling plate body (23) and the bottom and side surface of the metal cooling housing (22) respectively.

4. An AC asynchronous stepless speed regulation motor according to claim 1, characterized in that: The support plate (9) is in a rectangular plate structure; multiple groups of support plates (9) are arranged around the peripheral sides and the bottom surface of the motor (1); the width of the support plate (9) is equal to the width of the motor (1), and the width of the support plate (9) is less than the width of the cooling housing (2).

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