Oil-gas separator structure in motor

Abstract

The utility model discloses an oil-gas separator structure in a motor, which comprises a gas guide assembly, a gas-permeable membrane assembly and a gas-permeable valve assembly, the gas guide assembly is connected with the gas-permeable membrane assembly, the gas-permeable valve assembly is connected with the gas-permeable membrane assembly, a marble assembly is arranged in the gas-permeable valve assembly, and a net-shaped lower cover is arranged outside the gas-permeable valve assembly. Through the design, gas in the motor can be smoothly discharged, oil liquid is prevented from flowing out, the separation structure is optimized, the ventilation valve assembly is additionally arranged, the oil liquid is further blocked, the ventilation membrane assembly is protected, and the service life of the oil-gas separator structure and the motor is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to an oil-gas separator structure inside a motor. Background Art

[0002] As the global energy crisis intensifies and environmental awareness increases, the development and application of electric vehicles as a clean and efficient means of transportation have received widespread attention. Two-wheeled electric vehicles have an important position in urban commuting and short-distance travel due to their lightness and flexibility. In the design of two-wheeled electric vehicles, the motor is the core power component, and its performance stability and reliability have a decisive impact on the performance of the entire vehicle.

[0003] When the motor is cooled by an oil cooling system, it is necessary to ensure that the gas inside the motor can be discharged smoothly and prevent the oil from flowing out of the motor's sealed cavity. However, the existing oil-gas separator structure has poor separation effect and a short service life, so it is necessary to improve the above problems. Summary of the invention

[0004] The utility model aims at the defects of poor separation effect, short service life and the like in the prior art and provides a new oil-gas separator structure inside a motor.

[0005] In order to solve the above technical problems, the utility model is implemented through the following technical solutions:

[0006] A gas-oil separator structure inside a motor comprises an air guide assembly and a breathable membrane assembly, wherein the air guide assembly is connected to the breathable membrane assembly, and further comprises a breathable valve assembly, wherein the breathable valve assembly is connected to the breathable membrane assembly, wherein a marble assembly is arranged inside the breathable valve assembly, and a mesh lower cover is arranged outside the breathable valve assembly.

[0007] The air guide assembly is used to guide the gas to discharge. The breathable membrane assembly is used to prevent oil and air from flowing out of the motor's internal oil through the air guide assembly. The breathable valve assembly is used to prevent oil from entering the breathable membrane assembly, protect the breathable membrane assembly, and increase the service life. The marble assembly and mesh lower cover are both used to prevent oil and air, further improving the oil-gas separation capability. When the motor is running under load, the gas generated by the pressure will be discharged from the motor cavity through the oil-gas separator structure, but the internal oil will not be discharged.

[0008] Through the above-mentioned design, this patent allows the gas inside the motor to be discharged smoothly and prevents the oil from flowing out. It also optimizes the separation structure and adds a breathable valve assembly to further block the oil, protect the breathable membrane assembly, and extend the service life of the oil-gas separator structure and the motor.

[0009] Preferably, in the above-described oil-gas separator structure inside a motor, the marble assembly includes a fixed ring body, a spring, and a marble part, the fixed ring body is fixed in the air valve assembly, the fixed ring body is provided with an air hole, the spring and the marble part are both located in the air hole and cooperate with each other.

[0010] The fixed ring is used to directly block the oil, and is also used to set the vent hole and fix the spring and the marble. The vent hole is used to discharge the gas in the motor. The spring and the marble cooperate to block the oil. The spring supports the marble. When the pressure in the motor reaches the critical value of the spring contraction, the gas in the motor can be discharged and the oil is blocked by the marble.

[0011] Preferably, in the above-mentioned oil-gas separator structure inside the motor, a spring fixing groove is provided in the air vent, and the spring fixing groove cooperates with the spring.

[0012] The design of the spring fixing groove is more conducive to the fixing of the spring and improves the structural stability.

[0013] Preferably, in the oil-gas separator structure inside the motor described above, a marble arc surface is provided in the air vent, and the marble arc surface cooperates with the marble part.

[0014] The curved surface of the marble is more consistent with the shape of the marble part, which improves the sealing performance and the effect of blocking oil.

[0015] Preferably, in the above-described oil-gas separator structure inside a motor, the marble assembly cooperates with the air valve assembly to form a front cavity and a rear cavity, and air desiccant is provided in the front cavity and the rear cavity.

[0016] The design of the front cavity and the rear cavity is more conducive to the separation of oil and gas. The air desiccant is used to absorb moisture and can effectively reduce the humidity in the front cavity and the rear cavity.

[0017] Preferably, in the above-mentioned oil-gas separator structure inside the motor, a limiting step is also provided in the front cavity.

[0018] The limiting step cooperates with the upper cover to improve the stability of the connection structure and prevent loosening.

[0019] Preferably, in the above-mentioned oil-gas separator structure inside the motor, the air valve assembly is provided with an air valve limiting column, and the air valve limiting column is engaged and connected with the mesh lower cover and extends out of the mesh lower cover.

[0020] The air valve limit post is used to engage the mesh lower cover to improve the stability of the connection structure. The air valve limit post extends out of the mesh lower cover to limit the position of the cable tie or other binding objects to improve convenience.

[0021] Preferably, in the above-mentioned oil-gas separator structure inside a motor, the mesh lower cover is provided with circular holes, and the circular holes form a mesh structure.

[0022] The round holes form a mesh structure, which is used to initially block the oil and allow the gas in the motor to pass through.

[0023] Preferably, in the above-described oil-gas separator structure inside a motor, the breathable membrane assembly includes an upper cover and an oil-proof breathable membrane, the oil-proof breathable membrane is arranged in the upper cover, the upper cover is connected to the breathable valve assembly, and the upper cover is provided with an upper cover limiting column.

[0024] The upper cover plays a fixing role. The oil-proof breathable membrane is used to prevent oil from entering the breathable membrane assembly, protect the breathable membrane assembly, increase the service life, and allow gas to pass through. The oil-proof breathable membrane is set in the upper cover, so that the oil-proof breathable membrane is closer to the breathable valve assembly, improving the overall oil and gas separation effect. The upper cover limit column cooperates with the breathable valve limit column to limit the cable tie or other binding objects, improving convenience.

[0025] Preferably, in the above-described oil-gas separator structure inside a motor, the air guide assembly includes an air guide pipe and a guide column, the guide column is connected to the upper cover, and the air guide pipe passes through the guide column and is inserted into the upper cover.

[0026] The airway tube is used to discharge gas. The guide column is used to fix the airway tube and also serves as a guiding structure to enable the airway tube to be inserted smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0028] Figure 2 It is an explosion diagram of the utility model;

[0029] Figure 3 It is a partial cross-sectional schematic diagram of the utility model;

[0030] Figure 4 It is a schematic cross-sectional view of a local structure of the air-permeable valve assembly in the utility model;

[0031] Figure 5 The structure of the utility model is shown in FIG. Figure 2 . DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-5 The present invention is further described in detail with the following specific embodiments, but they are not intended to limit the present invention:

[0033] Example 1

[0034] A gas-oil separator structure inside a motor includes an air guide component 1 and a breathable membrane component 2, wherein the air guide component 1 is connected to the breathable membrane component 2, and further includes a breathable valve component 3, wherein the breathable valve component 3 is connected to the breathable membrane component 2, wherein a marble component 31 is disposed inside the breathable valve component 3, and a mesh lower cover 32 is disposed outside the breathable valve component 3.

[0035] Preferably, the marble assembly 31 includes a fixed ring body 311, a spring 312, and a marble part 313. The fixed ring body 311 is fixed in the air valve assembly 3. The fixed ring body 311 is provided with a vent hole 314. The spring 312 and the marble part 313 are both located in the vent hole 314 and cooperate with each other.

[0036] Preferably, a spring fixing groove 315 is provided in the vent hole 314 , and the spring fixing groove 315 cooperates with the spring 312 .

[0037] Preferably, a marble arc surface 316 is provided in the vent hole 314 , and the marble arc surface 316 cooperates with the marble portion 313 .

[0038] Preferably, the marble assembly 31 cooperates with the air-permeable valve assembly 3 to form a front cavity 33 and a rear cavity 34 , and air desiccant is disposed in the front cavity 33 and the rear cavity 34 .

[0039] Preferably, a limiting step 35 is further provided in the front cavity 33 .

[0040] Preferably, the air valve assembly 3 is provided with an air valve limiting column 36 , and the air valve limiting column 36 is engaged and connected with the mesh lower cover 32 and extends out of the mesh lower cover 32 .

[0041] Preferably, the mesh lower cover 32 is provided with round holes 321, and the round holes 321 form a mesh structure.

[0042] Preferably, the breathable membrane assembly 2 comprises an upper cover 21 and an oil-proof breathable membrane, the oil-proof breathable membrane is arranged in the upper cover 21 , the upper cover 21 is connected to the breathable valve assembly 3 , and the upper cover 21 is provided with an upper cover limiting column 22 .

[0043] Preferably, the air guide assembly 1 comprises an air guide tube 11 and a guide column 12 , the guide column 12 is connected to the upper cover 21 , and the air guide tube 11 passes through the guide column 12 and is inserted into the upper cover 21 .

[0044] The air-permeable valve assembly 3 forms a front cavity 33 and a rear cavity 34 through a fixed ring body 311 .

[0045] The number of the limiting steps 35 may be two, which cooperate and fix with the upper cover 21 to prevent the connection structure from loosening.

[0046] The number of the air-permeable valve limiting posts 36 may be two or more, and they may be used in combination with the upper cover limiting posts 22 .

[0047] The diameter of the circular hole 321 may be 1 mm.

[0048] The guide column 12 is provided with Figure 1 The groove structure shown includes a U-shaped groove on the front side and an arc triangular groove on the rear side.

[0049] When the motor is running under load, the gas generated by the pressure first passes through the mesh lower cover 32 and enters the rear cavity 34. The mesh lower cover 32 initially blocks the oil, and the air desiccant in the rear cavity 34 dries the gas. When the air pressure in the rear cavity 34 reaches the critical value of the contraction of the spring 312, the gas discharge stage begins.

[0050] During the gas discharge stage, in a very short period of time, the air pressure in the rear cavity 34 increases a little, and a little gap will be generated between the marble part 313 and the marble arc surface 316. A little gas will enter the vent 314 from the gap and reach the front cavity 33. A little gas is discharged from the rear cavity 34, and the air pressure decreases. The marble part 313 continues to support the marble arc surface 316 to block the oil, and then the air pressure in the rear cavity 34 increases a little again, and this cycle is repeated to discharge the gas in the rear cavity 34 and block the oil when the spring 312 reaches the critical contraction value.

[0051] The air desiccant in the front cavity 33 dries the gas in the front cavity 33 , and finally the gas passes through the oil-proof air-permeable membrane and is discharged through the air guide pipe 11 .

[0052] In conclusion, the above is only a preferred embodiment of the present invention, and all equivalent changes and modifications made within the scope of the patent application for the present invention should fall within the scope of the present invention.

Claims

1. An oil-gas separator structure inside a motor, comprising an air guide component (1) and an air permeable membrane component (2), wherein the air guide component (1) is connected to the air permeable membrane component (2), and is characterized in that: It also comprises a breathable valve assembly (3), wherein the breathable valve assembly (3) is connected to the breathable membrane assembly (2), a marble assembly (31) is arranged inside the breathable valve assembly (3), and a mesh lower cover (32) is arranged outside the breathable valve assembly (3).

2. The oil-gas separator structure inside a motor according to claim 1, characterized in that: The marble assembly (31) comprises a fixed ring body (311), a spring (312), and a marble portion (313); the fixed ring body (311) is fixed in the air-permeable valve assembly (3); the fixed ring body (311) is provided with an air vent (314); the spring (312) and the marble portion (313) are both located in the air vent (314) and cooperate with each other.

3. The oil-gas separator structure inside a motor according to claim 2, characterized in that: A spring fixing groove (315) is provided in the vent hole (314), and the spring fixing groove (315) cooperates with the spring (312).

4. The oil-gas separator structure inside a motor according to claim 2, characterized in that: A marble arc surface (316) is provided in the vent hole (314), and the marble arc surface (316) cooperates with the marble portion (313).

5. The oil-gas separator structure inside a motor according to claim 1, characterized in that: The marble assembly (31) cooperates with the air-permeable valve assembly (3) to form a front cavity (33) and a rear cavity (34), and air desiccants are disposed in the front cavity (33) and the rear cavity (34).

6. The oil-gas separator structure inside a motor according to claim 5, characterized in that: A limiting step (35) is also provided in the front cavity (33).

7. The oil-gas separator structure inside a motor according to claim 1, characterized in that: The air-permeable valve assembly (3) is provided with an air-permeable valve limiting column (36), and the air-permeable valve limiting column (36) is snap-connected with the mesh lower cover (32) and extends out of the mesh lower cover (32).

8. The oil-gas separator structure inside a motor according to claim 1, characterized in that: The mesh lower cover (32) is provided with round holes (321), and the round holes (321) form a mesh structure.

9. The oil-gas separator structure inside a motor according to claim 1, characterized in that: The breathable membrane assembly (2) comprises an upper cover (21) and an oil-proof breathable membrane, wherein the oil-proof breathable membrane is arranged in the upper cover (21), the upper cover (21) is connected to the breathable valve assembly (3), and the upper cover (21) is provided with an upper cover limiting column (22).

10. The oil-gas separator structure inside a motor according to claim 9, characterized in that: The air guide assembly (1) comprises an air guide tube (11) and a guide column (12); the guide column (12) is connected to the upper cover (21); the air guide tube (11) passes through the guide column (12) and is inserted into the upper cover (21).

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