Water-cooled motor

Abstract

The utility model provides a water-cooled motor, which comprises a shell, a front end cover connected to the front end of the shell, a rear end cover connected to the rear end of the shell, a cooling mechanism arranged at the center of the shell, a rotor arranged at the outer end of the cooling mechanism, a stator arranged at the outer end of the rotor, and a liquid outlet arranged at the right end of the center of the front end cover. According to the water-cooled motor, the cooling mechanism, the sealing gasket, the first convex block, the second convex block, the sealing ring and other structures are arranged, so that the effects of cooling the motor shaft and avoiding the leakage of the cooling liquid can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and more specifically relates to a water-cooled motor. Background Art

[0002] The cooling method of water-cooled motors is usually to perform hot and cold cycles inside the motor casing to reduce the temperature of the motor itself. This method can effectively reduce the temperature rise near the casing, but the temperature inside the motor, especially the temperature of the motor shaft body, is difficult to effectively reduce. The motor shaft is located in the center of the motor, and bearings, rotors and sealing elements are directly installed on it. Excessive temperature will increase the probability of failure of parts such as sealing elements and bearings, which will greatly reduce the life of the motor and reliability cannot be guaranteed.

[0003] In response to the above problems, regarding the technical problem that it is difficult for existing water-cooled motors to reduce the temperature of the motor shaft, after a lot of searching, a water-cooled motor with patent number CN202231563U was found, including: a housing, a stator and a motor shaft, the motor shaft is provided with a cooling water passage, the cooling water passage is a cavity in the motor shaft, a left rotary joint and a right rotary joint are respectively provided at both ends of the motor shaft, the cavity of the motor shaft is connected with the inner channels of the left rotary joint and the right rotary joint through the through holes at its two end ends, respectively. The utility model can effectively improve the internal temperature of the water-cooled motor, especially the temperature of the motor shaft, thereby increasing the service life of the motor and improving the safety and reliability of the motor. However, the technical solution provided by the patent has the problem that when the motor shaft rotates at a high speed, the coolant inside the motor shaft will be thrown out, and it is difficult to enter the inside of the motor shaft, making it difficult for the coolant to cool the motor shaft.

[0004] The utility model can cool the motor shaft and prevent the leakage of cooling liquid. Utility Model Content

[0005] The utility model aims to solve the technical problems raised by the above-mentioned background technology and provide a water-cooled motor to achieve the effects of cooling the motor shaft and avoiding leakage of coolant.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a water-cooled motor, comprising: a shell, the front end of the shell is connected to a front end cover, the rear end of the shell is connected to a rear end cover, a cooling mechanism is arranged in the center of the shell, a rotor is installed at the outer end of the cooling mechanism, a stator is installed at the outer end of the rotor, and a liquid outlet is arranged at the right end of the center of the front end cover.

[0007] A further preferred solution is that a mounting hole matching the cooling mechanism is provided through the center of the front cover and the rear cover.

[0008] A further preferred solution is that the outer end of the stator is connected to an inner wall, and the inner wall and the shell form a cooling liquid channel.

[0009] A further preferred solution: The cooling mechanism includes: a liquid inlet conduit, a first connecting block, a rotating shaft shell, a second connecting block, and an output rod. The liquid inlet conduit is arranged in the central mounting hole of the front end cover, the first connecting block is installed at the central outer end of the liquid inlet conduit, the rear end of the first connecting block is connected to the rotating shaft shell, the end of the rotating shaft shell is connected to the second connecting block, and the center of the second connecting block is connected to the output rod.

[0010] A further preferred solution is that a plurality of liquid spray holes are provided through the liquid inlet conduit.

[0011] A further preferred solution is that a through hole is provided in the center of the first connecting block and the second connecting block, the through hole is respectively matched with the liquid inlet conduit and the output rod, and a plurality of liquid outlet holes are provided around the through hole at equal distances.

[0012] A further preferred solution: a first protrusion is connected to the outer end of the rear end of the front end cover, a sealing gasket is connected to the front end of the first protrusion, a first sealing groove that fits with the first protrusion and the sealing gasket is opened in the center of the front end of the shell, a second protrusion is connected to the inner side of the front end of the shell, a sealing ring is connected to the front end of the second protrusion, a second sealing groove that fits with the second protrusion and the sealing ring is opened at the rear end of the front end cover, and the connection method between the rear end cover and the shell is the same as the connection method between the front end cover and the shell.

[0013] Beneficial effects:

[0014] 1. The cooling mechanism is provided to achieve the effect of cooling the rotating shaft; the cooling liquid is pumped into the liquid inlet conduit, and the cooling liquid is sprayed from the liquid spray hole to the rotating shaft shell, thereby cooling the rotating shaft, and then the rotating shaft shell rotates at a high speed to throw the cooling liquid out to the cooling liquid channel through the liquid outlet holes through the first connecting block and the second connecting block, thereby completing the cooling of the entire motor shaft;

[0015] 2. The sealing gasket, the first protrusion, the second protrusion and the sealing ring are provided to prevent leakage of the coolant; the first protrusion and the sealing gasket on the front cover are tightly fitted with the first sealing groove of the housing, so that the front cover and the housing are sealed to prevent leakage of the coolant; the second protrusion and the sealing ring on the housing are tightly fitted with the second sealing groove at the rear end of the front cover, thereby enhancing the sealing between the front cover and the housing, further preventing leakage of the coolant; the rear cover and the housing have the same arrangement, preventing leakage of the coolant from between the rear cover and the housing;

[0016] 3. In summary, this water-cooled motor, by providing a cooling mechanism, a sealing gasket, a first protrusion, a second protrusion, a sealing ring and other structures, can cool the motor shaft and prevent leakage of the coolant. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0018] Figure 2 It is a cross-sectional structural schematic diagram of the utility model.

[0019] Figure 3 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0020] Figure 4 This is a schematic diagram of the cooling mechanism structure of the utility model.

[0021] Figure 1-4 In: 1. Shell; 2. Rear end cover; 3. Front end cover; 4. Liquid outlet; 5. Cooling mechanism; 501. Liquid inlet conduit; 502. First connecting block; 503. Rotating shaft shell; 504. Second connecting block; 505. Output rod; 6. Stator; 7. Rotor; 8. Cooling liquid channel; 9. Inner wall; 10. Sealing gasket; 11. First protrusion; 12. Second protrusion; 13. Sealing ring. DETAILED DESCRIPTION

[0022] The following will be combined with the attached embodiment of the present utility model Figure 1-Figure 4 , clearly and completely describe the technical solutions in the embodiments of the utility model.

[0023] See also Figure 1-4 In the embodiment of the utility model, a water-cooled motor includes: a shell 1 is the outer shell of the entire motor, which is used to fix and protect internal components, a front cover 3 and a rear cover 2 are connected to the front and rear ends of the shell 1, and play a sealing and supporting role. The cooling mechanism 5 reduces the heat generated when the motor is working through a water cooling system. A rotor 7 is installed at the outer end of the cooling mechanism 5, and a stator 6 is installed at the outer end of the rotor 7. The rotor 7 and the stator 6 are the core components of the motor. The relative movement between them realizes the conversion of electrical energy into mechanical energy or the conversion of mechanical energy into electrical energy. A liquid outlet 4 is arranged at the central right end of the front cover 3, and the coolant in the cooling system can circulate through the liquid outlet 4 to achieve the purpose of heat dissipation.

[0024] In the embodiment of the utility model, a mounting hole matching with the cooling mechanism 5 is opened through the center of the front cover 3 and the rear cover 2 to achieve the effect of mounting the cooling mechanism 5 .

[0025] In the embodiment of the utility model, the outer end of the stator 6 is connected to the inner wall 9, and the inner wall 9 and the shell 1 form a cooling liquid channel 8, so that the coolant flows through the cooling liquid channel 8 to cool the motor. The arrangement of the cooling liquid channel 8 is the existing technology, so the specific arrangement of the cooling liquid channel 8 is not drawn in this device.

[0026] In the embodiment of the utility model, the cooling mechanism 5 includes: a liquid inlet conduit 501, a first connecting block 502, a rotating shaft shell 503, a second connecting block 504, and an output rod 505. The liquid inlet conduit 501 is arranged in the central mounting hole of the front end cover 3, the first connecting block 502 is installed at the central outer end of the liquid inlet conduit 501, the rear end of the first connecting block 502 is connected to the rotating shaft shell 503, the end of the rotating shaft shell 503 is connected to the second connecting block 504, and the center of the second connecting block 504 is connected to the output rod 505, so as to achieve the effect of cooling the rotating shaft. Through the liquid inlet conduit 501, the coolant is input into the rotating shaft shell 503, thereby cooling the rotating shaft shell 503; through the first connecting block 502 and the second connecting block 504, the coolant in the rotating shaft shell 503 is discharged into the cooling liquid channel 8 to cool other components; through the high-speed rotation of the rotating shaft shell 503, the coolant is thrown out to the cooling liquid channel 8 through the first connecting block 502 and the second connecting block 504; through the output rod 505, the effect of power output is achieved.

[0027] In the embodiment of the utility model, a plurality of liquid spray holes are formed through the liquid inlet conduit 501 , so that the cooling liquid is sprayed from the liquid spray holes toward the rotating shaft shell 503 to cool the rotating shaft shell 503 .

[0028] In the embodiment of the utility model, a through hole is opened through the center of the first connecting block 502 and the second connecting block 504, and the through holes are respectively matched with the liquid inlet conduit 501 and the output rod 505. A plurality of liquid outlet holes are opened equidistantly around the through holes. Through the through holes, the liquid inlet conduit 501 and the output rod 505 can be installed; through the liquid outlet holes, the coolant thrown out of the rotating shaft shell 503 can be discharged into the cooling liquid channel 8.

[0029] In the embodiment of the utility model, the outer end of the rear end of the front end cover 3 is connected to the first protrusion 11, the front end of the first protrusion 11 is connected to the sealing gasket 10, the center of the front end of the shell 1 is provided with a first sealing groove that matches the first protrusion 11 and the sealing gasket 10, the inner side of the front end of the shell 1 is connected to the second protrusion 12, the front end of the second protrusion 12 is connected to the sealing ring 13, the rear end of the front end cover 3 is provided with a second sealing groove that matches the second protrusion 12 and the sealing ring 13, the connection method between the rear end cover 2 and the shell 1 is the same as the connection method between the front end cover 3 and the shell 1, so as to achieve the effect of enhancing the sealing between the front end cover 3 and the rear end cover 2 and the shell 1 and preventing leakage of the coolant.

[0030] Working principle: When in use, the water-cooled motor is started to make the rotor 7 drive the rotating shaft to rotate, thereby driving the output rod 505 to rotate and output power through the second connecting block 504, and then pumping coolant into the liquid inlet conduit 501, the coolant is sprayed from the spray hole to the rotating shaft shell 503, thereby cooling the rotating shaft, and then the rotating shaft shell 503 rotating at high speed throws the coolant through the liquid outlet holes through the first connecting block 502 and the second connecting block 504 to the cooling liquid channel 8, and the coolant flows through the cooling liquid channel 8 and is finally discharged from the liquid outlet 4; the first protrusion 11 and the sealing gasket 10 on the front end cover 3 are tightly fitted with the first sealing groove of the shell 1, so that the front end cover 3 is sealed with the shell 1 to prevent leakage of coolant, and the second protrusion 12 and the sealing ring 13 on the shell 1 are tightly fitted with the second sealing groove at the rear end of the front end cover 3, thereby enhancing the sealing of the front end cover 3 and the shell 1, further avoiding leakage of coolant, and the rear end cover 2 and the shell 1 have the same arrangement, avoiding leakage of coolant from between the rear end cover 2 and the shell 1.

Claims

1. A water-cooled motor, comprising: The shell (1) is characterized in that: the front end of the shell (1) is connected to a front cover (3), the rear end of the shell (1) is connected to a rear cover (2), a cooling mechanism (5) is arranged in the center of the shell (1), a rotor (7) is installed at the outer end of the cooling mechanism (5), a stator (6) is installed at the outer end of the rotor (7), and a liquid outlet (4) is arranged at the right end of the center of the front cover (3).

2. A water-cooled motor according to claim 1, characterized in that: A mounting hole that fits with the cooling mechanism (5) is provided through the center of the front cover (3) and the rear cover (2).

3. A water-cooled motor according to claim 1, characterized in that: The outer end of the stator (6) is connected to an inner wall (9), and the inner wall (9) and the shell (1) form a cooling liquid channel (8).

4. A water-cooled motor according to claim 1, characterized in that: The cooling mechanism (5) comprises: a liquid inlet conduit (501), a first connecting block (502), a rotating shaft shell (503), a second connecting block (504), and an output rod (505); the liquid inlet conduit (501) is arranged in the central mounting hole of the front end cover (3); the first connecting block (502) is mounted on the central outer end of the liquid inlet conduit (501); the rear end of the first connecting block (502) is connected to the rotating shaft shell (503); the end of the rotating shaft shell (503) is connected to the second connecting block (504); and the center of the second connecting block (504) is connected to the output rod (505).

5. A water-cooled motor according to claim 4, characterized in that: The liquid inlet conduit (501) is provided with a plurality of liquid spray holes.

6. A water-cooled motor according to claim 4, characterized in that: A through hole is provided in the center of the first connection block (502) and the second connection block (504), and the through holes are respectively matched with the liquid inlet conduit (501) and the output rod (505), and a plurality of liquid outlet holes are provided around the through holes at equal distances.

7. The water-cooled motor according to claim 1, characterized in that: The front end cover (3) is connected to a first protrusion (11) at the outer end of the rear end, and a sealing gasket (10) is connected to the front end of the first protrusion (11). A first sealing groove that matches the first protrusion (11) and the sealing gasket (10) is provided at the center of the front end of the shell (1). A second protrusion (12) is connected to the inner side of the front end of the shell (1), and a sealing ring (13) is connected to the front end of the second protrusion (12). A second sealing groove that matches the second protrusion (12) and the sealing ring (13) is provided at the rear end of the front end cover (3). The connection method between the rear end cover (2) and the shell (1) is the same as the connection method between the front end cover (3) and the shell (1).

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