Motor heat dissipation system structure

By designing the motor heat dissipation system structure, including oil and gas collector, circulation pipe, connection pipe, oil storage tank and dehumidification tank, the high temperature problem of the motor during high load is solved, and the motor is well dissipated and stable.

CN222940665UActive Publication Date: 2025-06-03ZHEJIANG LUYUAN ELECTRIC VEHICLE
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Patent Information

Application Number
CN202422271267.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-14
Publication Date
2025-06-03
Estimated Expiration
2034-09-14

AI Technical Summary

Technical Problem

Under high load use, the internal temperature is higher than the external temperature, causing the motor to not work properly.

Method used

A motor cooling system structure is designed, including an oil and gas collector, circulation pipe, connecting pipe, oil storage tank and dehumidification tank. Cooling oil and gas flow through these components, the cooling oil is stored, and the moisture in the gas is absorbed by the dehumidifier and eliminated to the general environment.

Benefits of technology

It effectively solves the high temperature problem of the motor during high load and long distance use, ensuring that the motor dissipates heat well and works stably.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222940665U_ABST
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Abstract

The utility model discloses a motor heat dissipation system structure which comprises an oil gas collector, a runner pipe, a connecting pipe, an oil storage tank and a dehumidification tank, an oil storage cavity is formed in the oil storage tank, a first opening and a second opening are communicated with the two ends of the oil storage tank, the first opening and the second opening are communicated with the oil storage cavity, and a one-way breathable film is arranged in the oil storage tank. The one-way breathable film covers the second opening; a dehumidification cavity is formed in the dehumidification tank, a third opening and a fourth opening are formed in the two ends of the dehumidification tank in a penetrating mode respectively, the third opening and the fourth opening communicate with the dehumidification cavity, and a dehumidification part is arranged in the dehumidification cavity; one end of the oil-gas collector is communicated with a gas pipe in the motor, the other end of the oil-gas collector is communicated with the runner pipe, the first port is communicated with the other end of the runner pipe through a connecting pipe, and the second port and the third port are communicated through a connecting pipe. As the temperature and the air pressure inside the motor are increased, cooling oil flows into the storage tank to be stored, and the air absorbs moisture through the dehumidification tank and then is discharged to the outside, so that the motor can well dissipate heat and stably work.
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Description

Technical Field

[0001] The utility model relates to the technical field of motor heat dissipation structures, in particular to a motor heat dissipation system structure. Background Technique

[0002] With the popularization of electric two-wheel vehicles, liquid-cooled high-power-density outer-rotor hub motors have become an important criterion for consumers to consider the driving ability of two-wheel electric vehicles. When the motor is under high-load use, affected by the use environment and frequency, the temperature inside the motor will be higher than the ambient temperature, resulting in the inability of the internal components of the motor to continuously exhibit their own characteristics at the standard temperature, leading to abnormal operation of the motor, and improvements are needed. Summary of the Invention

[0003] Aiming at the defects in the prior art that when the motor is under high-load use, the temperature inside the motor is higher than the outside air temperature, resulting in abnormal operation of the motor, etc., the utility model provides a new motor heat dissipation system structure.

[0004] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0005] A motor heat dissipation system structure includes an oil-gas collector, a circulation pipe, a connecting pipe, an oil storage tank and a dehumidification tank. An oil storage cavity is formed in the oil storage tank, and the two ends of the oil storage tank are penetrated with a first port and a second port. The first port and the second port are communicated with the oil storage cavity. A one-way breathable membrane is arranged in the oil storage tank, and the one-way breathable membrane covers the second port. A dehumidification cavity is formed in the dehumidification tank, and the two ends of the dehumidification tank are respectively penetrated with a third port and a fourth port. The third port and the fourth port are communicated with the dehumidification cavity. A dehumidifying member is arranged in the dehumidification cavity. One end of the oil-gas collector is communicated with the internal air pipe of the motor, the other end of the oil-gas collector is communicated with the circulation pipe, the first port is communicated with the other end of the circulation pipe through the connecting pipe, and the second port and the third port are communicated through the connecting pipe.

[0006] Due to the increase in the temperature and air pressure inside the motor, the cooling oil and gas inside the motor flow into the oil storage tank through the oil-gas collector, the circulation pipe and the connecting pipe. At this time, the cooling oil can be stored through the oil storage tank and the one-way breathable membrane, and the gas flows through the one-way breathable membrane into the dehumidification tank and the moisture in the gas is absorbed by the dehumidifying member and then discharged to the large environment, so that the situation that the motor function deteriorates due to high temperature generated under high load and long distance can be solved, and the motor can dissipate heat well and work stably.

[0007] Preferably, for the structure of a motor cooling system described above, the connecting pipe includes a first section and a second section. One end of the first section and both ends of the second section are provided with clamping seats. Clamping grooves are formed on the outer side walls of the clamping seats. Clamping heads are arranged in the first port, the second port, and the third port. The clamping seats are inserted into the first port, the second port, and the third port for plugging and matching, and the ends of the clamping heads are inserted into the clamping grooves for clamping and matching.

[0008] The connecting pipe is detachably installed with the oil storage tank and the dehumidification tank through the clamping seats and the clamping heads, which improves the convenience during the disassembly and assembly of the structure of the motor cooling system and also facilitates the replacement of the oil storage tank and the dehumidification tank.

[0009] Preferably, for the structure of a motor cooling system described above, multiple connecting pipes, oil storage tanks, and dehumidification tanks are provided. The connecting pipes, oil storage tanks, and dehumidification tanks correspond to each other one by one. The end of the first section away from the clamping seat is inserted into the flow pipe and connected to the flow pipe.

[0010] The provision of multiple oil storage tanks, dehumidification tanks, and connecting pipes further improves the cooling effect of the motor.

[0011] Preferably, for the structure of a motor cooling system described above, a first ring and a second ring are arranged on the outer side wall of the clamping seat and are distributed from top to bottom. The first ring and the second ring are coaxially arranged with the clamping seat. A positioning groove is formed between the first ring, the second ring, and the clamping seat. The outer diameter of the second ring gradually decreases downward along the height direction; positioning blocks are arranged in the first port, the second port, and the third port. The positioning blocks are inserted into the positioning groove for clamping and matching.

[0012] The clamping and matching between the positioning groove and the positioning block further improves the stability of the connection between the clamping seat and the clamping head; the outer diameter of the second ring gradually decreases downward along the height direction, so as to play a role of making way when the positioning block is inserted into the positioning groove, and improves the convenience during the plugging of the clamping head and the clamping seat.

[0013] Preferably, for the structure of a motor cooling system described above, the dehumidifying member is a desiccant.

[0014] The dehumidifying member being a desiccant improves the convenience during dehumidification and also reduces the cost.

[0015] Preferably, for the structure of a motor cooling system described above, a handle is arranged on the outer side wall of the dehumidification tank.

[0016] The handle facilitates the movement of the dehumidification tank, the oil storage tank, etc., and improves the convenience during the movement of the dehumidification tank and the oil storage tank. Description of the Drawings

[0017] Figure 1It is a schematic structural diagram of the present utility model;

[0018] Figure 2 It is a sectional view of the present utility model;

[0019] Figure 3 It is a sectional view of the present utility model showing the second section, the clamping seat, and the dehumidifying tank. Specific embodiments

[0020] The following combines the attached Figures 1-3 drawings and specific embodiments to further describe the present utility model in detail, but they are not limitations to the present utility model:

[0021] Embodiment 1

[0022] As Figure 1 , Figure 2 , Figure 3 shown, a motor heat dissipation system structure includes an oil-gas collector 1, a circulation pipe 2, a connecting pipe 3, an oil storage tank 4, and a dehumidifying tank 5. An oil storage cavity 41 is formed in the oil storage tank 4, and a first port 42 and a second port 43 penetrate through both ends of the oil storage tank 4. The first port 42, the second port 43 are communicated with the oil storage cavity 41. A one-way air-permeable membrane 44 is arranged in the oil storage tank 4, and the one-way air-permeable membrane 44 covers the second port 43. A dehumidifying cavity 51 is formed in the dehumidifying tank 5, and a third port 52 and a fourth port 53 penetrate through both ends of the dehumidifying tank 5 respectively. The third port 52, the fourth port 53 are communicated with the dehumidifying cavity 51. A dehumidifying member 54 is arranged in the dehumidifying cavity 51. One end of the oil-gas collector 1 is communicated with the internal air pipe of the motor, and the other end of the oil-gas collector 1 is communicated with the circulation pipe 2. The first port 42 and the other end of the circulation pipe 2 are communicated through the connecting pipe 3. The second port 43 and the third port 52 are communicated through the connecting pipe 3.

[0023] Preferably, the connecting pipe 3 includes a first section 31 and a second section 32. Clamping seats 6 are arranged at one end of the first section 31 and both ends of the second section 32. A clamping groove 61 is formed on the outer side wall of the clamping seat 6. Clamping heads 7 are arranged in the first port 42, the second port 43, and the third port 52. The clamping seat 6 is inserted into the first port 42, the second port 43, and the third port 52 for plugging and matching. The end of the clamping head 7 is inserted into the clamping groove 61 for clamping and matching.

[0024] Preferably, the number of the connecting pipes 3, the oil storage tanks 4, and the dehumidifying tanks 5 is multiple. The connecting pipes 3, the oil storage tanks 4, and the dehumidifying tanks 5 correspond one by one. The end of the first section 31 far from the clamping seat 6 is inserted into the circulation pipe 2 and connected to the circulation pipe 2.

[0025] Preferably, a first ring 62 and a second ring 63 are arranged on the outer side wall of the clamping seat 6 and are distributed from top to bottom. The first ring 62, the second ring 63 and the clamping seat 6 are coaxially arranged. A positioning groove 8 is formed between the first ring 62, the second ring 63 and the clamping seat 6. The outer diameter of the second ring 63 gradually decreases downward along the height direction. Positioning blocks 9 are arranged in the first port 42, the second port 43 and the third port 52. The positioning blocks 9 are inserted into the positioning groove 8 and are in clamping fit.

[0026] Preferably, the dehumidifying member 54 is a desiccant.

[0027] Preferably, a handle 55 is arranged on the outer side wall of the dehumidifying tank 5.

[0028] Specifically, the clamping head 7 is annular, and the upper end of the clamping head 7 is serrated. The clamping seat 6 and the clamping head 7 are made of plastic material. In the embodiment of the present application, there are 4 groups of connecting pipes 3, oil storage tanks 4 and dehumidifying tanks 5. The circulation pipe 2 is sleeved outside the connecting pipe 3 and is connected to the connecting pipe 3. The number of the connecting pipes 3, the oil storage tanks 4 and the dehumidifying tanks 5 can be increased or decreased according to the actual situation. The main body of the clamping seat 6 is cylindrical, and a baffle is integrally formed at the end of the clamping seat 6. The diameter of the baffle is larger than the inner diameters of the first port 42, the second port 43 and the third port 52.

[0029] When assembling the connecting pipe 3, the oil storage tank 4 and the dehumidifying tank 5, first align one end of the first section 31 provided with the clamping seat 6 with the first port 42, and then insert the clamping seat 6 into the first port 42 so that the baffle abuts against the oil storage tank 4. At this time, the top end of the clamping head 7 is inserted into the clamping groove 61, and the positioning block 9 is inserted into the positioning groove 8, thus completing the assembly of the first section 31 and the oil storage tank 4. According to the above steps, both ends of the second section 32 can be fixed at the second port 43 and the third port 52 respectively. At this time, the assembly between the connecting pipe 3, the oil storage tank 4 and the dehumidifying tank 5 is completed.

[0030] More specifically, as the temperature and air pressure inside the motor rise, the cooling oil and gas inside the motor flow through the oil and gas collector 1, the circulation pipe 2 and the connecting pipe 3 to the oil storage tank 4. At this time, the one-way breathable membrane 44 can prevent the cooling oil from flowing out of the oil storage tank 3, and the storage of the cooling oil is realized through the oil storage tank 3. The gas flows through the one-way breathable membrane 44 to the dehumidifying tank 5, and the moisture in the gas is absorbed by the dehumidifying member 54 and then discharged to the large environment, thereby being able to solve the situation that the functionality of the motor decreases due to the high temperature generated by the motor under high load and long distance, ensuring good heat dissipation of the motor and improving the working stability of the motor.

[0031] In summary, the above are only the preferred embodiments of the present invention. All equivalent changes and modifications made within the scope of the patent application of the present invention shall fall within the scope covered by the present invention.

Claims

1. A motor heat dissipation system structure, characterized in that: The invention comprises an oil and gas collector (1), a circulation pipe (2), a connecting pipe (3), an oil storage tank (4) and a dehumidification tank (5); an oil storage cavity (41) is formed in the oil storage tank (4), and a first port (42) and a second port (43) are connected at both ends of the oil storage tank (4); the first port (42) and the second port (43) are connected to the oil storage cavity (41); a one-way air permeable membrane (44) is arranged in the oil storage tank (4), and the one-way air permeable membrane (44) covers the second port (43); a dehumidification cavity (51) is formed in the dehumidification tank (5), and a dehumidification cavity (51) is formed in the dehumidification tank (5). The two ends of the tank (5) are respectively penetrated by a third port (52) and a fourth port (53), the third port (52) and the fourth port (53) are in communication with a dehumidification chamber (51), and a dehumidification element (54) is arranged in the dehumidification chamber (51); one end of the oil and gas collector (1) is in communication with an air pipe inside the motor, the other end of the oil and gas collector (1) is in communication with a circulation pipe (2), the first port (42) is in communication with the other end of the circulation pipe (2) via a connecting pipe (3), and the second port (43) and the third port (52) are in communication via a connecting pipe (3).

2. A motor heat dissipation system structure according to claim 1, characterized in that: The connecting pipe (3) comprises a first section (31) and a second section (32); one end of the first section (31) and both ends of the second section (32) are provided with a clamping seat (6); an outer wall of the clamping seat (6) is provided with a clamping groove (61); a clamping joint (7) is provided in the first port (42), the second port (43) and the third port (52); the clamping seat (6) is inserted into the first port (42), the second port (43) and the third port (52) for plug-in engagement; an end of the clamping joint (7) is inserted into the clamping groove (61) for clamping engagement.

3. A motor heat dissipation system structure according to claim 2, characterized in that: The connecting pipe (3), the oil storage tank (4), and the dehumidification tank (5) are provided in plural numbers, and the connecting pipe (3), the oil storage tank (4), and the dehumidification tank (5) correspond to each other one by one. The end of the first section (31) away from the clamping seat (6) is inserted into the circulation pipe (2) and connected to the circulation pipe (2).

4. A motor heat dissipation system structure according to claim 3, characterized in that: A first ring (62) and a second ring (63) are arranged on the outer side wall of the clamping seat (6) and are distributed from top to bottom. The first ring (62), the second ring (63) and the clamping seat (6) are coaxially arranged. A positioning groove (8) is formed between the first ring (62), the second ring (63) and the clamping seat (6). The outer diameter of the second ring (63) gradually decreases downward along the height direction. Positioning blocks (9) are arranged in the first opening (42), the second opening (43) and the third opening (52). The positioning blocks (9) are inserted into the positioning groove (8) and are engaged with each other.

5. The motor heat dissipation system structure according to claim 1, characterized in that: The dehumidifying element (54) is a desiccant.

6. The motor heat dissipation system structure according to claim 1, characterized in that: The outer side wall of the dehumidification tank (5) is provided with a handle (55).