Liquid cooling motor with oil seepage prevention structure

By using Teflon tubing and a pointed structure, combined with components such as clamps, O-rings, and oil seals, the pressure balance problem caused by coolant adhesion in liquid-cooled motors was solved, improving the motor's sealing and maintainability, and enhancing its efficiency and safety.

CN223666137UActive Publication Date: 2025-12-12WUXI SINE POWER TECH CO LTD
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Patent Information

Application Number
CN202423268932.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-12-12
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

During operation, the surface tension and viscosity of the coolant cause the liquid to adhere to the inner wall of the conduit or flow slowly, affecting the pressure balance and potentially causing the vent valve to become blocked or malfunction.

Method used

The conduit is made of Teflon material and designed with a pointed bottom. Combined with components such as clamps, O-rings and oil seals, it ensures sealing and disassembly, prevents oil adhesion and promotes rapid liquid dripping, and prevents the vent valve from being blocked when the pressure rises.

Benefits of technology

It effectively prevents the conduit from getting wet with oil, avoids the siphon effect, ensures the normal operation of the vent valve, improves the sealing and maintainability of the motor, reduces heat generation, and enhances the magnetic field distribution effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of liquid cooling motors, and discloses a liquid cooling motor with an oil seepage prevention structure, which comprises a rim, a left end cover and a right end cover are detachably mounted in the rim, a balance pipe is fixed at the left end of the left end cover in a penetrating manner, and an oil seepage prevention assembly is arranged at one end, extending into the left end cover, of the balance pipe. The oil seepage prevention assembly comprises a pagoda air nozzle connected to the end of the balance pipe in a threaded mode. The exhaust conduit of the liquid-cooled motor is made of the Teflon material, so that the conduit is effectively prevented from being soaked by oil and generating a siphonic effect, and the bottom end of the conduit is replaced by a tip structure from a conventional round opening end, so that a liquid film formed by liquid at an end opening due to tension is favorably damaged, and the liquid quickly forms liquid drops to drop down; oil liquid is prevented from being attached to the bottom end of the guide pipe, and the situation that when the motor works, the liquid at the end is blown to the ventilation valve along the air guide pipe due to internal temperature rise and pressure rise, so that ventilation of the ventilation valve is blocked, and the ventilation valve fails seriously is prevented.
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Description

TECHNICAL FIELD

[0001] The utility model relates to liquid cooling motor technical field especially relates to a liquid cooling motor of oil seepage prevention structure. BACKGROUND

[0002] During the operation of the liquid cooling motor, due to temperature change, the cooling liquid may cause the fluctuation of the internal pressure of the system due to thermal expansion or cold shrinkage, the air or other gas can enter and exit through the air vent valve, so as to balance the pressure between the inside and the outside, and avoid the damage of the motor shell or the cooling system due to excessive pressure.

[0003] The bottom end of the connecting conduit of the pressure balance pipe of the liquid cooling motor in the prior art is a round port end, but during the operation of the liquid cooling motor, the cooling oil in the motor will flow into the conduit, and the cooling oil usually has a certain surface tension and viscosity, which may cause the liquid film to form on the inner wall of the hose and slow down the movement and discharge of the bubbles, thereby affecting the pressure balance in the motor, and therefore the utility model is proposed. UTILITY MODEL CONTENT

[0004] The utility model discloses a liquid cooling motor of oil seepage prevention structure which solves the problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A liquid cooling motor of oil seepage prevention structure, comprising a rim, the inner part of the rim is detachably installed with a left end cover and a right end cover, the left end cover and the right end cover are combined into a motor shell, the motor shell is filled with a heat-conducting flame-retardant liquid, a balance pipe is fixed at the left end of the left end cover, a breather valve is fixed at the end of the balance pipe away from the left end cover, an oil seepage prevention assembly is arranged at the end of the balance pipe extending into the left end cover, the oil seepage prevention assembly comprises a tower air nozzle threadedly connected to the end of the balance pipe, a conduit is movably sleeved at the bottom end of the tower air nozzle, the bottom end of the conduit is a sharp end structure, and the conduit is made of Teflon.

[0007] As a further scheme of the utility model, a clamp is sleeved on the outer wall of the conduit, and the conduit is detachably installed with the tower air nozzle through the clamp.

[0008] As a further scheme of the utility model, a first O-shaped ring is installed on the outer wall of the tower air nozzle, the first O-shaped ring is threadedly connected with the inside of the balance pipe, a motor stator winding is rotatably connected on the bearing seat between the left end cover and the right end cover, an oil seal is further installed at the rotatable connection of the motor stator winding with the left end cover and the right end cover, and a motor rotor winding is fixed on the inner wall of the motor shell combined by the left end cover and the right end cover.

[0009] As a further scheme of the utility model, the right end cover is provided with an axis hole on one side, a motor wire is sleeved in the axis hole, the motor wire is electrically connected with the motor rotor winding, the right side of the right end cover is provided with a glue injection hole in communication with the axis hole, and the left side of the left end cover is provided with an oil injection hole.

[0010] As a further scheme of the utility model, the left end cover and the right end cover are detachably installed with the rim through fastening screws.

[0011] As a further scheme of the utility model, the outer wall of the motor stator winding is embedded with a plurality of magnetic steels.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] Compared with the prior art, the utility model has the beneficial effects that: BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a plane section structure schematic view of the liquid cooling motor with the oil seepage prevention structure;

[0015] Figure 2 It is a plane section structure schematic view of the liquid cooling motor with the oil seepage prevention structure; Figure 1 It is a partial stereogram enlarged schematic view of the A;

[0016] Figure 3 It is a partial stereogram enlarged schematic view of the B; Figure 1 It is a partial stereogram enlarged schematic view of the C.

[0017] Figure 4 It is a partial stereogram enlarged schematic view of the C. Figure 1

[0018] In the drawing: 1, rim; 101, left end cover; 102, right end cover; 103, balance pipe; 104, air breather; 2, pagoda air nozzle; 201, conduit; 202, clamp; 3, first O-shaped ring; 301, motor stator winding; 302, oil seal; 303, motor rotor winding; 304, axis hole; 305, motor wire; 306, glue injection hole; 307, oil injection hole; 4, magnetic steel. DETAILED DESCRIPTION

[0019] ​In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0020] In the description of the utility model, it should be pointed out that the directions or position relations indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end" and "the other end" are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and thus cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the utility model, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements. For ordinary skilled persons in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0022] As shown in Figures 1-4 An oil-impervious structure liquid-cooled motor, comprising a rim 1, the inner part of the rim 1 is detachably mounted with a left end cover 101 and a right end cover 102 respectively, the left end cover 101 and the right end cover 102 are combined into a motor shell, the motor shell is filled with heat-conducting flame-retardant liquid inside, the left end of the left end cover 101 penetrates and is fixed with a balance pipe 103, the end of the balance pipe 103 away from the left end cover 101 is fixed with an air breather 104, one end of the balance pipe 103 extending to the inside of the left end cover 101 is provided with an oil-impervious assembly, the oil-impervious assembly comprises a tower air nozzle 2 screwed on the end of the balance pipe 103, the bottom end of the tower air nozzle 2 movably sleeves with a conduit 201, the bottom end of the conduit 201 is a pointed end structure, the conduit 201 is made of Teflon material, the exhaust conduit 201 of the liquid-cooled motor is made of Teflon material, thereby effectively preventing the conduit 201 from being soaked with oil and siphon effect, and the bottom end of the conduit 201 is replaced by a pointed end structure from a conventional round port end, which is conducive to breaking the liquid film formed by tension at the port, when the motor is running, the liquid is left from the upper part, the liquid is quickly formed into liquid drops and dropped down, oil is effectively prevented from adhering to the bottom end of the conduit 201, when the motor is working, the pressure of the internal temperature rise and pressure rise blows the liquid at the end along the air duct to the air breather 104, causing the air breather 104 to be blocked, and the air breather 104 is seriously invalid.

[0023] AsFigures 2-4 As shown in the figure, in this embodiment, the outer wall of the conduit 201 is sleeved with a clamp 202, and the conduit 201 is detachably installed with the pagoda air nozzle 2 through the clamp 202. By adopting the clamp 202, the conduit 201 is detachably installed with the pagoda air nozzle 2, which facilitates the disassembly and replacement of the conduit 201.

[0024] As shown in the figure, Figures 2-4 As shown in the figure, in this embodiment, the outer wall of the conduit 201 is sleeved with a clamp 202, and the conduit 201 is detachably installed with the pagoda air nozzle 2 through the clamp 202. By adopting the clamp 202, the conduit 201 is detachably installed with the pagoda air nozzle 2, which facilitates the disassembly and replacement of the conduit 201.

[0025] As shown in the figure, Figures 2-4 As shown in the figure, in this embodiment, the outer wall of the conduit 201 is sleeved with a clamp 202, and the conduit 201 is detachably installed with the pagoda air nozzle 2 through the clamp 202. By adopting the clamp 202, the conduit 201 is detachably installed with the pagoda air nozzle 2, which facilitates the disassembly and replacement of the conduit 201.

[0026] As shown in the figure, Figures 2-4 As shown in the figure, in this embodiment, the outer wall of the conduit 201 is sleeved with a clamp 202, and the conduit 201 is detachably installed with the pagoda air nozzle 2 through the clamp 202. By adopting the clamp 202, the conduit 201 is detachably installed with the pagoda air nozzle 2, which facilitates the disassembly and replacement of the conduit 201.

[0027] As shown in the figure, Figures 2-4 As shown in the figure, in this embodiment, the outer wall of the conduit 201 is sleeved with a clamp 202, and the conduit 201 is detachably installed with the pagoda air nozzle 2 through the clamp 202. By adopting the clamp 202, the conduit 201 is detachably installed with the pagoda air nozzle 2, which facilitates the disassembly and replacement of the conduit 201.

[0028] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects: the exhaust pipe 201 of the liquid-cooled motor is made of Teflon material, thereby effectively preventing the pipe 201 from being soaked with oil and siphon effect, the bottom end of the pipe 201 is replaced by a sharp end structure from a conventional round port end, which is conducive to breaking the liquid film formed by tension at the port, when the motor is running, the liquid is left from the upper part, which is conducive to the rapid formation of liquid droplets, effectively preventing oil from adhering to the bottom end of the pipe 201, preventing the liquid at the end from being blown to the air vent valve 104 along the air duct when the motor is working due to temperature rise and pressure rise, causing the air vent valve 104 to be blocked, and in severe cases, the air vent valve 104 fails, the pipe 201 and the pagoda air nozzle 2 are detachably mounted by the clamp 202, which is convenient for dismounting and replacing the pipe 201, the first O-ring 3 is provided to ensure the sealing of the pagoda air nozzle 2 and the balance pipe 103, the oil seal 302 can ensure the sealing of the motor rotor winding 303 and the left end cover 101 and the right end cover 102, the glue injection hole 306 is provided, which is convenient for the staff to inject sealant into the glue injection hole 306, so that the axis hole 304 and the motor wire 305 are adhered and fixed, thereby realizing sealing, the left end cover 101 and the right end cover 102 are detachably mounted with the rim 1 by fastening screws, which is convenient for the staff to dismount the motor for maintenance, the magnetic steel 4 is provided to enhance the magnetic field distribution effect of the motor stator winding 301, improve the efficiency of the motor, and reduce the heat generation.

[0029] The basic principles and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model.

Claims

1. A liquid-cooled motor with an oil-proof structure, comprising a rim (1), characterized in that, The rim (1) is detachably fitted with a left end cap (101) and a right end cap (102). The left end cap (101) and the right end cap (102) are combined to form a motor housing. The motor housing is filled with a heat-conducting and flame-retardant liquid. A balance tube (103) is fixed through the left end of the left end cap (101). A vent valve (104) is fixed at the end of the balance tube (103) away from the left end cap (101). An oil-proof component is provided at the end of the balance tube (103) that extends into the left end cap (101). The oil-proof component includes a pagoda-shaped air nozzle (2) threaded to the end of the balance tube (103). A conduit (201) is movably sleeved at the bottom end of the pagoda-shaped air nozzle (2). The bottom end of the conduit (201) is a pointed structure and the conduit (201) is made of Teflon material.

2. The liquid-cooled motor with an oil-proof structure according to claim 1, characterized in that, The outer wall of the conduit (201) is fitted with a clamp (202), and the conduit (201) is detachably installed with the pagoda-shaped air nozzle (2) through the clamp (202).

3. The liquid-cooled motor with an oil-proof structure according to claim 2, characterized in that, The outer wall of the pagoda-shaped air nozzle (2) is fitted with a first O-ring (3), which is connected to the internal thread of the balance tube (103). The motor stator winding (301) is rotatably connected to the bearing seat between the left end cover (101) and the right end cover (102). An oil seal (302) is also installed at the rotatable connection between the motor stator winding (301) and the left end cover (101) and the right end cover (102). The motor rotor winding (303) is fixed on the inner wall of the motor housing formed by the combination of the left end cover (101) and the right end cover (102).

4. The liquid-cooled motor with an oil-proof structure according to claim 3, characterized in that, The right end cover (102) has an axis hole (304) on one side, and a motor wire (305) is sleeved inside the axis hole (304). The motor wire (305) is electrically connected to the motor rotor winding (303). The right side of the right end cover (102) has an injection hole (306) through the axis hole (304), and the left end cover (101) has an oil injection hole (307) on the left side.

5. A liquid-cooled motor with an oil-proof structure according to claim 4, characterized in that, Both the left end cap (101) and the right end cap (102) are detachably installed on the rim (1) by fastening screws.

6. A liquid-cooled motor with an oil-proof structure according to claim 5, characterized in that, Several magnets (4) are embedded in the outer wall of the motor stator winding (301).