Gas-liquid separation structure, driving assembly and vehicle

Abstract

The utility model discloses a gas-liquid separation structure, drive assembly and vehicle, the gas-liquid separation structure includes: the body, the body defines the separation cavity, is provided with at least one liquid drainage hole and air outlet hole on the body, liquid drainage hole and air outlet hole are both communicated with the separation cavity, the separation cavity is provided with at least one liquid baffle structure, the liquid baffle structure is provided with at least one liquid outlet, and the liquid baffle is provided with at least one liquid outlet. And the at least one liquid blocking structure obliquely extends towards the liquid drainage hole. Therefore, the gas-liquid separation structure is used for carrying out gas-liquid separation on gas-liquid mixed gas which is discharged by the driving assembly and is high in oil content, the separation cavity can be divided into a plurality of cavities through the liquid blocking structures, and the mixed gas can conveniently enter the separation cavity and circulate in the separation cavity through the liquid drainage holes; the liquid blocking structure obliquely extends towards the liquid leakage hole so that the separated oil can smoothly flow back to the driving assembly, the liquid blocking structure can further prolong the movement path of the mixed gas, the flow speed of the mixed gas in the separation cavity is reduced, the gas-liquid separation effect is improved, the risk that the oil leaks through the gas outlet hole is reduced, and the reliability of the gas-liquid separation structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a gas-liquid separation structure, a drive assembly and a vehicle. Background Art

[0002] In the prior art, the cross section of the gas-liquid separation structure is composed of two right-angled sides and an arc side connecting the two right-angled sides. The gas-liquid separation structure is provided with a first tank body, a second tank body and a third tank body. A first oil baffle is provided between the first and second tank bodies, and a second oil baffle is provided between the second and third tank bodies. A first oil drain hole is provided at the bottom of the first tank body adjacent to the arc edge, and a second oil drain hole is provided at the bottom of the second tank body adjacent to the arc edge. The second oil drain hole connects the first tank body and the second tank body. The gas-liquid separation structure has a simple structure, a short gas flow path, a poor gas-liquid separation effect, and a risk of oil leakage. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the first purpose of the utility model is to provide a gas-liquid separation structure that can enhance the gas-liquid separation effect and improve the stability of the gas-liquid separation structure.

[0004] The second object of the present utility model is to provide a driving assembly, comprising the gas-liquid separation structure described in the above embodiment.

[0005] The third objective of the present utility model is to provide a vehicle, comprising the drive assembly described in the above embodiment.

[0006] According to an embodiment of the first aspect of the utility model, a gas-liquid separation structure includes: a main body, a separation chamber is defined in the main body, at least one liquid leakage hole and an air outlet are formed on the main body, the liquid leakage hole and the air outlet are both connected to the separation chamber, and the separation chamber has at least one liquid blocking structure, and at least one of the liquid blocking structures extends obliquely toward the liquid leakage hole.

[0007] According to the gas-liquid separation structure of the embodiment of the utility model, the gas-liquid separation structure is used to separate the gas-liquid mixture with a high oil content discharged from the driving assembly, and discharge the separated gas from the driving assembly through the air outlet, and the separated oil flows back to the inside of the driving assembly. The setting of multiple liquid-blocking structures can divide the separation chamber into multiple chambers, and the multiple drainage holes facilitate the mixed gas to enter and circulate in the separation chamber. The liquid-blocking structure extends obliquely toward the drainage hole so that the separated oil can flow back to the driving assembly smoothly. The setting of the liquid-blocking structure can also extend the movement path of the mixed gas, slow down the flow rate of the mixed gas in the separation chamber, improve the gas-liquid separation effect, reduce the risk of oil leakage through the air outlet, and improve the reliability of the gas-liquid separation structure.

[0008] In some embodiments, the air outlet hole and the liquid drain hole are located on both sides of the separation chamber in the first direction.

[0009] In some embodiments, the liquid blocking structure includes at least one of a first liquid blocking structure and a second liquid blocking structure, wherein the first liquid blocking structure extends obliquely from the air outlet toward the liquid leakage hole along the first direction, and the second liquid blocking structure and the liquid leakage hole are located on the same side of the separation chamber in the first direction, and the second liquid blocking structure extends obliquely toward the liquid leakage hole.

[0010] In some embodiments, the liquid leakage hole is located below the air outlet hole, and at least one of the liquid blocking structures extends obliquely downward toward the liquid leakage hole.

[0011] In some embodiments, the drainage hole is opposite to at least one of the liquid blocking structures.

[0012] In some embodiments, there are multiple liquid blocking structures, and a buffer groove is defined between two adjacent liquid blocking structures.

[0013] In some embodiments, there are multiple buffer grooves, and the multiple buffer grooves are connected in sequence. The drainage hole includes a first drainage hole, and the first drainage hole and the air outlet hole are respectively connected to the buffer grooves on both sides.

[0014] In some embodiments, the buffer tank includes a first buffer tank, a second buffer tank and a third buffer tank connected in sequence, the first liquid discharge hole is connected to the first buffer tank, the air outlet hole is connected to the third buffer tank, the first buffer tank and the second buffer tank are connected through a first connecting hole, and the second buffer tank and the third buffer tank are connected through a second connecting hole.

[0015] In some embodiments, the multiple liquid blocking structures include: a first sub-liquid blocking structure, a second sub-liquid blocking structure, a third sub-liquid blocking structure and a fourth sub-liquid blocking structure arranged in sequence, the end of the first sub-liquid blocking structure away from the first liquid leakage hole is connected to the second sub-liquid blocking structure and defines the first buffer groove, the first liquid leakage hole is opposite to the first buffer groove, the second sub-liquid blocking structure and the end of the third sub-liquid blocking structure away from the first liquid leakage hole are connected to each other and define the second buffer groove, and the third sub-liquid blocking structure and the fourth sub-liquid blocking structure are defined between them.

[0016] In some embodiments, the plurality of liquid blocking structures further include: a fifth sub-liquid blocking structure, one end of the fifth sub-liquid blocking structure is connected to the fourth sub-liquid blocking structure, and the fifth sub-liquid blocking structure and one end of the third sub-liquid blocking structure adjacent to the first liquid leakage hole are spaced apart from each other to define the second connecting hole.

[0017] In some embodiments, the first connecting hole and the second connecting hole are both located on the side where the first drainage hole is located, and the air outlet hole is located on the side of the separation chamber opposite to the first drainage hole.

[0018] In some embodiments, the drainage hole further includes a second drainage hole, and the second drainage hole is opposite to the second buffer groove.

[0019] In some embodiments, the first leakage hole is lower than the second leakage hole.

[0020] In some embodiments, a cross-sectional area of ​​the first leakage hole is greater than a cross-sectional area of ​​the second leakage hole.

[0021] In some embodiments, a cross-sectional area of ​​the second connecting hole is greater than a cross-sectional area of ​​the second leakage hole.

[0022] In some embodiments, a cross-sectional area of ​​the second connecting hole is greater than a cross-sectional area of ​​the first connecting hole, and a cross-sectional area of ​​the first connecting hole is greater than a cross-sectional area of ​​the first leakage hole.

[0023] The drive assembly according to the embodiment of the second aspect of the utility model includes the gas-liquid separation structure according to the embodiment of the first aspect of the utility model.

[0024] A vehicle according to an embodiment of the third aspect of the utility model comprises a drive assembly according to an embodiment of the second aspect of the utility model.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] Figure 1 It is a schematic diagram of a drive assembly according to an embodiment of the utility model.

[0028] Figure 2 It is a schematic diagram of a drive assembly according to another perspective of an embodiment of the utility model.

[0029] Figure 3 yes Figure 2 Schematic diagram of the enlarged P region.

[0030] Figure 4 It is a schematic diagram of the flow path of gas in the gas-liquid separation structure according to an embodiment of the utility model.

[0031] Reference numerals:

[0032] 100. Drive assembly;

[0033] 10. Gas-liquid separation structure; 11. Main body; 12. Separation chamber; 13. First communication hole; 14. Second communication hole; 15. Gas outlet;

[0034] 20, drainage hole; 21, first drainage hole; 22, second drainage hole;

[0035] 30. liquid blocking structure; 31. first sub-liquid blocking structure; 32. second sub-liquid blocking structure; 33. third sub-liquid blocking structure; 34. fourth sub-liquid blocking structure; 35. fifth sub-liquid blocking structure;

[0036] 40, buffer slot; 41, first buffer slot; 42, second buffer slot; 43, third buffer slot;

[0037] A. First direction; B. Second direction. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figure 1-Figure 4 The gas-liquid separation structure 10 according to an embodiment of the utility model is described, including: a body 11.

[0039] Specifically, if Figure 1-Figure 4 As shown, a separation chamber 12 is defined in the body 11, at least one liquid drain hole 20 and an air outlet hole 15 are formed on the body 11, both the liquid drain hole 20 and the air outlet hole 15 are connected to the separation chamber 12, and at least one liquid blocking structure 30 is provided in the separation chamber 12, and at least one liquid blocking structure 30 extends obliquely toward the liquid drain hole 20. The separation chamber 12 has a first direction A and a second direction B.

[0040] Combination Figure 1-Figure 4 The gas-liquid separation structure 10 is suitable for being arranged on the driving assembly 100. The gas-liquid mixture with a high oil content generated during the operation of the driving assembly 100 is separated by the gas-liquid separation structure 10, and the gas is discharged and the liquid flows back. The main body 11 is formed with a plurality of drainage holes 20 and an air outlet hole 15. The gas-liquid mixture enters the separation chamber 12 from the drainage holes 20. After being separated by the gas-liquid separation structure 10, the gas is finally discharged through the air outlet hole 15, and the liquid flows back from the drainage hole 20. Among them, the main body 11 includes two parts that cooperate with each other, such as two shells that cooperate with each other. Figure 1-4 One of the components is shown, while the other component is not shown.

[0041] The separation chamber 12 is provided with a plurality of liquid blocking structures 30, which divide the interior of the separation chamber 12 into a plurality of chambers. The plurality of chambers are connected to each other to form a complete passage for the circulation of the gas-liquid mixture. When the gas-liquid mixture circulates in the separation chamber 12, the oil is separated by the plurality of liquid blocking structures 30. The liquid blocking structures 30 extend obliquely toward the drainage hole 20 to facilitate the separated oil to flow back into the drive assembly 100 through the drainage hole 20, and the separated gas is discharged from the separation chamber 12 through the gas outlet 15.

[0042] According to the gas-liquid separation structure 10 of the embodiment of the utility model, the gas-liquid separation structure 10 is used to separate the gas-liquid mixed gas with a high oil content discharged from the driving assembly 100, and discharge the separated gas from the driving assembly 100 through the outlet hole 15, and the separated oil flows back to the inside of the driving assembly 100. The setting of multiple liquid blocking structures 30 can divide the separation chamber 12 into multiple chambers, and the multiple drainage holes 20 facilitate the mixed gas to enter and circulate in the separation chamber 12. The liquid blocking structure 30 extends obliquely toward the drainage hole 20 so that the separated oil can flow back to the driving assembly 100 smoothly. The setting of the liquid blocking structure 30 can also extend the movement path of the mixed gas, slow down the flow rate of the mixed gas in the separation chamber 12, improve the gas-liquid separation effect, reduce the risk of oil leakage through the outlet hole 15, and improve the reliability of the gas-liquid separation structure 10.

[0043] According to some embodiments of the present invention, Figure 1-Figure 3 As shown, the gas outlet 15 and the liquid leakage hole 20 are located on both sides of the first direction A of the separation chamber 12. The gas outlet 15 is located on the upper side of the separation chamber 12 along the first direction A, and the liquid leakage hole 20 is located on the lower side of the separation chamber 12 along the first direction A. It is convenient for the gas-liquid mixture to first enter the separation chamber 12 through the liquid leakage hole 20, and circulate in the separation chamber 12, and finally the separated gas flows out of the separation chamber 12 through the gas outlet 15. Therefore, the gas outlet 15 and the liquid leakage hole 20 are located on both sides of the first direction A of the separation chamber 12 to facilitate the entry and discharge of gas, so that the gas can smoothly circulate inside the gas-liquid separation structure 10 to complete the separation.

[0044] According to some embodiments of the present invention, Figure 2 and Figure 3As shown, the liquid blocking structure 30 includes at least one of a first liquid blocking structure 30 and a second liquid blocking structure 30, the first liquid blocking structure 30 extends obliquely from the air outlet 15 toward the liquid leakage hole 20 along the first direction A, the second liquid blocking structure 30 and the liquid leakage hole 20 are located on the same side of the first direction A of the separation chamber 12, and the second liquid blocking structure 30 extends obliquely toward the liquid leakage hole 20. The first liquid blocking structure 30 and the second liquid blocking structure 30 together divide the interior of the separation chamber 12 into a plurality of chambers, the second liquid blocking structure 30 is located on the side of the separation chamber 12 away from the air outlet 15 along the first direction A, and the second liquid blocking structure 30 extends along the second direction B from the upper side where the air outlet 15 is located toward the lower side where the liquid leakage hole 20 is located.

[0045] Therefore, the first liquid blocking structure 30 and the second liquid blocking structure 30 both extend obliquely toward the side where the drainage hole 20 is located, so that the oil separated through the separation chamber 12 can flow down through the first liquid blocking structure 30 and the second liquid blocking structure 30, and flow out through the drainage hole 20. The inclined arrangement of the first liquid blocking structure 30 and the second liquid blocking structure 30 can enable the oil to flow out of the separation chamber 12 faster, avoiding the accumulation of oil in the separation chamber 12 to block the separation chamber 12.

[0046] According to some embodiments of the present invention, Figure 3 As shown, the drain hole 20 is located below the gas outlet 15, and at least one liquid blocking structure 30 extends obliquely downward toward the drain hole 20. One end of the liquid blocking structure 30 along the extension direction is fixedly connected to the body 11, and the other end of the liquid blocking structure 30 along the extension direction is suitable for being adjacent to the drain hole 20. The drain hole 20 is located below the gas outlet 15 along the first direction A of the separation chamber 12, so that the oil in the gas-liquid mixture can be gathered on the liquid blocking structure 30 when passing through the liquid blocking structure 30, and flow out of the separation chamber 12 through the drain hole 20.

[0047] Therefore, the liquid blocking structure 30 extends obliquely downward toward the leakage hole 20 to facilitate limiting the flow path of the oil. The liquid blocking structure 30 can guide the flow direction of the oil, so that the gathered oil flows along the liquid blocking structure 30 to the leakage hole 20, and flows out of the gas-liquid separation structure 10 through the leakage hole 20.

[0048] According to some embodiments of the present invention, Figure 3 As shown, the drain hole 20 is opposite to at least one liquid blocking structure 30. The gas-liquid mixture enters the separation chamber 12 from the drain hole 20. The drain hole 20 is opposite to at least one liquid blocking structure 30 so that the gas-liquid mixture can fully contact the liquid blocking structure 30, so that part of the oil can stay on the liquid blocking structure 30 and flow back through the drain hole 20 along the extension direction of the liquid blocking structure 30.

[0049] Therefore, the leakage hole 20 and the liquid blocking structure 30 can prevent the gas-liquid mixture entering the separation chamber 12 from the leakage hole 20 from directly flowing out from the outlet hole 15, and can extend the path between the leakage hole 20 and the outlet hole 15. At the same time, it can reduce the flow rate of the gas-liquid mixture in the separation chamber 12, thereby improving the gas-liquid separation effect of the separation chamber 12.

[0050] According to some embodiments of the present invention, Figure 3 As shown, there are multiple liquid blocking structures 30, and a buffer groove 40 is defined between two adjacent liquid blocking structures 30. The multiple liquid blocking structures 30 divide the separation chamber 12 into multiple buffer grooves 40, and the multiple buffer grooves 40 are interconnected through the drainage holes 20. After the gas-liquid mixture enters the separation chamber 12 from the drainage holes 20, it flows through the multiple drainage holes 20 and the buffer grooves 40 in sequence and finally flows out through the outlet holes 15. After entering the separation chamber 12, the oil in the gas-liquid mixture will first impact the liquid blocking structure 30, and then enter the buffer groove 40, so that the oil can be fully buffered to form a multi-stage deceleration effect.

[0051] Thus, the multiple liquid-blocking structures 30 define multiple buffer grooves 40, which can provide buffering and deceleration for the gas-liquid mixture, slow down the oil impact, slow down the flow speed of the gas-liquid mixture, and prevent the oil from splashing to the outlet hole 15 to cause oil leakage or oil seepage.

[0052] According to some embodiments of the present invention, Figure 3 As shown, there are multiple buffer grooves 40, and the multiple buffer grooves 40 are connected in sequence. The drainage hole 20 includes a first drainage hole 21. The first drainage hole 21 and the air outlet hole 15 are respectively connected to the buffer grooves 40 on both sides. The multiple buffer grooves 40 are arranged in sequence along the first direction A of the separation chamber 12. The gas-liquid mixture enters the separation chamber 12 through the first drainage hole 21. The first drainage hole 21 is suitable for communicating with the buffer groove 40 located at the lower side of the separation chamber 12 along the first direction A. The air outlet hole 15 is suitable for communicating with the buffer groove 40 located at the upper side of the separation chamber 12 along the first direction A. Therefore, the setting of multiple buffer grooves 40 can achieve multi-stage deceleration of the gas-liquid mixture, extend the flow path of the gas-liquid mixture, enhance the buffering effect and oil blocking effect of the gas-liquid mixture, and improve the separation effect of the gas-liquid separation structure 10.

[0053] According to some embodiments of the present invention, Figure 3As shown, the buffer tank 40 includes a first buffer tank 41, a second buffer tank 42 and a third buffer tank 43 which are connected in sequence, the first drainage hole 21 is connected to the first buffer tank 41, the air outlet hole 15 is connected to the third buffer tank 43, the first buffer tank 41 and the second buffer tank 42 are connected through the first connecting hole 13, and the second buffer tank 42 and the third buffer tank 43 are connected through the second connecting hole 14. Along the second direction B of the separation chamber 12, the first buffer tank 41, the second buffer tank 42 and the third buffer tank 43 are arranged in sequence from bottom to top, the first drainage hole 21 is suitable for being opposite to the first buffer tank 41, the first drainage hole 21 is located below the first buffer tank 41, the air outlet hole 15 is suitable for being opposite to the third buffer tank 43, the air outlet hole 15 is located above the first buffer tank 41, and the second buffer tank 42 is located between the first buffer tank 41 and the third buffer tank 43.

[0054] Thus, the gas-liquid mixture entering the separation chamber 12 from the first drainage hole 21 is gradually separated from the gas and liquid through the first buffer groove 41, the first connecting hole 13, the second buffer groove 42, the second connecting hole 14 and the third buffer groove 43 in sequence, and the separated gas is finally discharged from the separation chamber 12 through the gas outlet 15. The arrangement of multiple buffer grooves 40 is conducive to the full separation of oil and gas, thereby improving the separation effect of the gas-liquid separation structure 10.

[0055] According to some embodiments of the present invention, Figure 3 As shown, the multiple liquid blocking structures 30 include: a first sub-liquid blocking structure 31, a second sub-liquid blocking structure 32, a third sub-liquid blocking structure 33 and a fourth sub-liquid blocking structure 34 arranged in sequence, the end of the first sub-liquid blocking structure 31 away from the first liquid leakage hole 21 is connected to the second sub-liquid blocking structure 32 and defines a first buffer groove 41, the first liquid leakage hole 21 is opposite to the first buffer groove 41, the second sub-liquid blocking structure 32 and the third sub-liquid blocking structure 33 away from the first liquid leakage hole 21 are connected to each other and define a second buffer groove 42, and a third buffer groove 43 is defined between the third sub-liquid blocking structure 33 and the fourth sub-liquid blocking structure 34.

[0056] The first sub-liquid blocking structure 31, the second sub-liquid blocking structure 32, the third sub-liquid blocking structure 33 and the fourth sub-liquid blocking structure 34 are formed as the inner walls of the first buffer groove 41, the second buffer groove 42 and the third buffer groove 43. The first sub-liquid blocking structure 31 extends along the second direction B of the separation chamber 12, the first sub-liquid blocking structure 31 is an inner wall of one side of the first buffer groove 41, and the first drain hole 21 is opposite to the first sub-liquid blocking structure 31.

[0057] The second sub-liquid blocking structure 32 extends obliquely along the first direction A and in the direction toward the first liquid leakage hole 21. One side surface of the second sub-liquid blocking structure 32 along the thickness direction is formed as the inner wall of the first buffer groove 41, and the other side surface of the second sub-liquid blocking structure 32 along the thickness direction is formed as the inner wall of one side of the second buffer groove 42. The third sub-liquid blocking structure 33 is arranged on the upper side of the second sub-liquid blocking structure 32 along the second direction B. The third sub-liquid blocking structure 33 extends obliquely along the first direction A and in the direction toward the first liquid leakage hole 21. One side surface of the third sub-liquid blocking structure 33 along the thickness direction is formed as the inner wall of the second buffer groove 42, and the other side surface of the third sub-liquid blocking structure 33 along the thickness direction is formed as the inner wall of the third buffer groove 43.

[0058] One end of the second sub-liquid blocking structure 32 along the extension direction is suitable for connecting with one end of the third sub-liquid blocking structure 33 along the extension direction, the other end of the second sub-liquid blocking structure 32 along the extension direction is suitable for being adjacent to the first connecting hole 13, and the other end of the third sub-liquid blocking structure 33 along the extension direction is suitable for being adjacent to the second connecting hole 14. The fourth sub-liquid blocking structure 34 is arranged above the third sub-liquid blocking structure 33 along the second direction B of the separation chamber 12, and one side surface of the fourth sub-liquid blocking structure 34 along the thickness direction is formed as the inner wall of the third buffer groove 43, and the third buffer groove 43 is located between the third sub-liquid blocking structure 33 and the second sub-liquid blocking structure 32.

[0059] Combination Figure 3 and Figure 4 The gas-liquid mixture entering the separation chamber 12 first enters the first buffer tank 41 and impacts the first sub-liquid blocking structure 31, which can buffer the gas-liquid mixture. After part of the oil contacts the first sub-liquid blocking structure 31, it flows down along the first sub-liquid blocking structure 31 and flows out of the separation chamber 12 through the first drain hole 21. Then, the remaining gas-liquid mixture passes through the first connecting hole 13 and enters the second buffer tank 42, and contacts the second sub-liquid blocking structure 32 and the third sub-liquid blocking structure 33. Part of the oil is separated and remains in the second sub-liquid blocking structure 32. The liquid-blocking structure 32 and the third sub-liquid-blocking structure 33 are connected, and the liquid-blocking structure 32 flows down along the second sub-liquid-blocking structure 32 and finally flows out of the separation chamber 12 through the first liquid leakage hole 21. Finally, the remaining gas-liquid mixture enters the third buffer tank 43 through the second connecting hole 14, and is separated from the gas again through the third sub-liquid-blocking structure 33 and the fourth sub-liquid-blocking structure 34. At this point, most of the oil and liquid are separated and flow out of the separation chamber 12 through multiple liquid-blocking structures 30 and the first liquid leakage hole 21, and the separated gas is discharged from the separation chamber 12 through the air outlet 15.

[0060] Therefore, the arrangement of multiple liquid-blocking structures 30 and multiple buffer tanks 40 can achieve a multi-stage separation effect on the gas-liquid mixed gas, and can form a multi-stage deceleration effect on the gas-liquid mixed gas. The arrangement of the buffer tank 40 can accommodate the separated oil and liquid, and can prevent the oil and liquid from clogging the first connecting hole 13 and the second connecting hole 14, so that the oil-blocking and ventilation effects of the gas-liquid separation structure 10 are better, and the reliability of the gas-liquid separation structure 10 is improved.

[0061] According to some embodiments of the present invention, Figure 3 As shown, the multiple liquid blocking structures 30 also include: a fifth sub-liquid blocking structure 35, one end of the fifth sub-liquid blocking structure 35 is connected to the fourth sub-liquid blocking structure 34, and the fifth sub-liquid blocking structure 35 and one end of the third sub-liquid blocking structure 33 adjacent to the first liquid leakage hole 21 are spaced apart from each other to define a second connecting hole 14. The fifth sub-liquid blocking structure 35 extends along the second direction B, obliquely toward the first liquid leakage hole 21, and there is a certain interval between the fifth sub-liquid blocking structure 35 and the other end of the third sub-liquid blocking structure 33 that is not connected to the second sub-liquid blocking structure 32 along the extension direction, forming a second connecting hole 14, so that the second buffer groove 42 is connected to the third buffer groove 43.

[0062] Thus, the fifth sub-liquid blocking structure 35 can further enhance the gas-liquid separation effect on the gas-liquid mixture. The second connecting hole 14 is provided to facilitate the connection between the second buffer tank 42 and the third buffer tank 43 , so that the gas-liquid mixture can flow smoothly in the separation chamber 12 .

[0063] According to some embodiments of the present invention, Figure 3 As shown, the first connecting hole 13 and the second connecting hole 14 are both located on the side where the first drainage hole 21 is located, and the air outlet hole 15 is located on the side of the separation chamber 12 opposite to the first drainage hole 21. That is, the first connecting hole 13 and the second connecting hole 14 are both located on the side away from the air outlet hole 15 along the first direction A of the separation chamber 12. Therefore, the arrangement of the first connecting hole 13 and the second connecting hole 14 facilitates the extension of the flow path of the gas-liquid mixture in the separation chamber 12, so that the gas-liquid mixture can circulate in the separation chamber 12 for a longer time. The first connecting hole 13 and the second connecting hole 14 are located on the side where the first drainage hole 21 is located, which is conducive to the separated oil and liquid flowing out of the separation chamber 12 faster, thereby improving the working efficiency of the gas-liquid separation structure 10.

[0064] According to some embodiments of the present invention, Figure 3As shown, the drain hole 20 also includes a second drain hole 22, and the second drain hole 22 is opposite to the second buffer groove 42. The second drain hole 22 is suitable for being formed on the fifth sub-liquid blocking structure 35, and the second drain hole 22 is opposite to the second buffer groove 42. Part of the gas-liquid mixture enters the second buffer groove 42 of the separation chamber 12 from the second drain hole 22, and contacts with the second sub-liquid blocking structure 32 and the third sub-liquid blocking structure 33 to separate part of the oil and liquid. The remaining gas-liquid mixture enters the third buffer groove 43 through the second connecting hole 14, and is contacted with the third sub-liquid blocking structure 33 and the fourth sub-liquid blocking structure 34 to perform gas-liquid separation again, and the separated oil and liquid can flow out through the second drain hole 22. Therefore, the second drain hole 22 can play a role in assisting oil unloading and ventilation, and can avoid the phenomenon that the drain hole 20 is blocked due to excessive oil and liquid in the path, thereby improving the separation efficiency and reliability of the gas-liquid separation structure 10.

[0065] According to some embodiments of the present invention, Figure 3 As shown, the first liquid leakage hole 21 is lower than the second liquid leakage hole 22. The first liquid leakage hole 21 is arranged below the second liquid leakage hole 22 along the second direction B of the separation chamber 12. The gas-liquid mixture will first enter the first liquid leakage hole 21, first contact the first sub-liquid blocking structure 31 and the second sub-liquid blocking structure 32, then contact the third sub-liquid blocking structure 33 through the first connecting hole 13, and finally contact the fourth sub-liquid blocking structure 34 through the second connecting hole 14. The gas-liquid mixture entering the second liquid leakage hole 22 will first contact the third sub-liquid blocking structure 33, and then contact the fourth sub-liquid blocking structure 34 through the second connecting hole 14.

[0066] Therefore, when the oil is retained in the separation chamber 12 for too long, it is easy to become viscous and cause clogging of the drain hole 20. The setting of the first drain hole 21 and the second drain hole 22 can avoid the clogging of the drain hole 20 and cause the failure of the gas-liquid separation structure 10. The first drain hole 21 and the second drain hole 22 can divert the oil, so that the separated oil first flows out through the first drain hole 21, and the remaining part of the oil flows out through the second drain hole 22, thereby ensuring the reliability of the gas-liquid separation structure 10.

[0067] According to some embodiments of the present invention, Figure 3 As shown, the cross-sectional area of ​​the first drainage hole 21 is larger than the cross-sectional area of ​​the second drainage hole 22. The cross-sectional area of ​​the first drainage hole 21 is larger than the cross-sectional area of ​​the second drainage hole 22. Most of the gas-liquid mixture and the separated oil enter or flow out of the separation chamber 12 mainly through the first drainage hole 21. The larger cross-sectional area of ​​the first drainage hole 21 helps to ensure the normal operation of the gas-liquid separation structure 10. The second drainage hole 22 is used to assist in oil drainage and ventilation. The smaller cross-sectional area of ​​the second drainage hole 22 helps to improve the oil blocking and ventilation effects of the gas-liquid separation structure 10.

[0068] According to some embodiments of the present invention, Figure 3 As shown, the cross-sectional area of ​​the second connecting hole 14 is larger than the cross-sectional area of ​​the second drainage hole 22. The gas-liquid mixed gas enters the separation chamber 12 from the second drainage hole 22. The smaller cross-sectional area of ​​the second drainage hole 22 is conducive to slowing down the flow speed of the gas-liquid mixed gas, which helps to improve the separation effect of the gas-liquid separation structure 10. The larger cross-sectional area of ​​the second connecting hole 14 allows the separated oil to flow out smoothly through the second connecting hole 14 and the drainage hole 20, preventing the oil from blocking the gas path in the separation chamber 12, thereby ensuring the reliability of the gas-liquid separation structure 10.

[0069] According to some embodiments of the present invention, Figure 3 As shown, the cross-sectional area of ​​the second connecting hole 14 is greater than that of the first connecting hole 13, and the cross-sectional area of ​​the first connecting hole 13 is greater than that of the first drainage hole 21. The second connecting hole 14 is located above the first connecting hole 13 along the second direction B of the separation chamber 12, and the first connecting hole 13 is located above the first drainage hole 21 along the two directions of the separation chamber 12, that is, along the flow path of the gas-liquid mixture in the separation chamber 12, the cross-sectional areas of the first drainage hole 21, the first connecting hole 13, and the second connecting hole 14 through which the gas-liquid mixture flows in sequence gradually increase, which can reduce the speed at which the gas-liquid mixture enters the separation chamber 12, so that the separated oil can flow back as soon as possible, avoiding accumulation in the separation chamber 12 and causing blockage, thereby improving the reliability of the gas-liquid separation structure 10.

[0070] The drive assembly 100 according to the second aspect of the embodiment of the utility model includes the gas-liquid separation structure 10 according to the first aspect of the embodiment of the utility model.

[0071] According to the driving assembly 100 of the embodiment of the utility model, the gas-liquid separation structure 10 is arranged on the driving assembly 100, and the driving assembly 100 is exhausted through the gas-liquid separation structure 10. The gas exhausted by the driving assembly 100 is a gas-liquid mixture with a high oil content. The gas-liquid separation structure 10 can separate the oil and liquid in the gas-liquid mixture and return it to the driving assembly 100, thereby avoiding oil leakage or oil seepage during the exhaust of the driving assembly 100, thereby improving the working performance of the driving assembly 100.

[0072] Furthermore, the drive assembly 100 includes a motor cavity and a transmission cavity. When the drive assembly 100 is working, the oil in the motor cavity generates an oil-liquid mixed gas, which merges with the oil in the transmission cavity and enters the gas-liquid separation structure 10. Since the gas-liquid separation structure 10 is arranged above the transmission cavity, the oil generated after separation by the gas-liquid separation mechanism flows back from the first drain hole 21 or the second drain hole 22 to the cavity where the transmission is located and forms precipitation in the transmission cavity, thereby avoiding entering the motor cavity and affecting the motor. In addition, in this embodiment, since the first drain hole 21 and the second drain hole 22 are provided, when the first drain hole 21 is blocked, the second drain hole 22 is located higher than the first drain hole 21 and can still be exhausted normally, further ensuring the normal operation of the gas-liquid separation structure 10. The vehicle according to the third embodiment of the utility model includes the drive assembly 100 according to the above-mentioned second embodiment of the utility model.

[0073] According to the vehicle of the embodiment of the utility model, by using the drive assembly 100 described in the above embodiment, the oil content in the gas exhausted by the drive assembly 100 can be effectively reduced, thereby effectively reducing the oil content in the gas exhausted by the vehicle, reducing oil consumption, avoiding pollution to the environment, and improving the stability of vehicle operation.

[0074] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0075] In the description of the present utility model, "first feature" and "second feature" may include one or more of the features. In the description of the present utility model, "plurality" means two or more. In the description of the present utility model, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature between them. In the description of the present utility model, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0076] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0077] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A gas-liquid separation structure, characterized in that: include: The body defines a separation chamber, and at least one liquid leakage hole and an air outlet are formed on the body, and the liquid leakage hole and the air outlet are both connected to the separation chamber. The separation chamber has at least one liquid blocking structure, and at least one of the liquid blocking structures extends obliquely toward the liquid leakage hole.

2. The gas-liquid separation structure according to claim 1, characterized in that: The air outlet hole and the liquid drain hole are located on two sides of the separation chamber in a first direction.

3. The gas-liquid separation structure according to claim 2, characterized in that: The liquid blocking structure includes at least one of a first liquid blocking structure and a second liquid blocking structure, The first liquid blocking structure extends obliquely along the first direction from the air outlet toward the liquid leakage hole. The second liquid blocking structure and the liquid leakage hole are located on the same side of the separation chamber in the first direction, and the second liquid blocking structure extends obliquely toward the liquid leakage hole.

4. The gas-liquid separation structure according to claim 1, characterized in that: The liquid leakage hole is located below the air outlet hole, and at least one of the liquid blocking structures extends obliquely downward toward the liquid leakage hole.

5. The gas-liquid separation structure according to claim 1, characterized in that: The liquid leakage hole is opposite to at least one of the liquid blocking structures.

6. The gas-liquid separation structure according to any one of claims 1 to 5, characterized in that: There are multiple liquid blocking structures, and a buffer groove is defined between two adjacent liquid blocking structures.

7. The gas-liquid separation structure according to claim 6, characterized in that: There are multiple buffer tanks, and the multiple buffer tanks are connected in sequence. The liquid leakage hole includes a first liquid leakage hole, and the first liquid leakage hole and the air outlet hole are respectively communicated with the buffer grooves on both sides.

8. The gas-liquid separation structure according to claim 7, characterized in that: The buffer tank includes a first buffer tank, a second buffer tank and a third buffer tank which are connected in sequence, the first liquid discharge hole is connected to the first buffer tank, the air outlet hole is connected to the third buffer tank, the first buffer tank and the second buffer tank are connected through a first connecting hole, and the second buffer tank and the third buffer tank are connected through a second connecting hole.

9. The gas-liquid separation structure according to claim 8, characterized in that: The plurality of liquid blocking structures include: The first sub-liquid blocking structure, the second sub-liquid blocking structure, the third sub-liquid blocking structure and the fourth sub-liquid blocking structure are arranged in sequence, the end of the first sub-liquid blocking structure away from the first liquid leakage hole is connected to the second sub-liquid blocking structure and defines the first buffer groove, the first liquid leakage hole is opposite to the first buffer groove, the second sub-liquid blocking structure and the end of the third sub-liquid blocking structure away from the first liquid leakage hole are connected to each other and define the second buffer groove, and the third sub-liquid blocking structure and the fourth sub-liquid blocking structure are defined between the third sub-liquid blocking structure and the fourth sub-liquid blocking structure.

10. The gas-liquid separation structure according to claim 9, characterized in that: The plurality of liquid blocking structures further include: A fifth sub-liquid blocking structure, one end of which is connected to the fourth sub-liquid blocking structure, and the fifth sub-liquid blocking structure and one end of the third sub-liquid blocking structure adjacent to the first liquid leakage hole are spaced apart from each other to define the second communicating hole.

11. The gas-liquid separation structure according to claim 9, characterized in that: The first connecting hole and the second connecting hole are both located on the side where the first drainage hole is located, and the air outlet hole is located on the side of the separation chamber opposite to the first drainage hole.

12. The gas-liquid separation structure according to claim 9, characterized in that: The drainage hole further includes a second drainage hole, and the second drainage hole is opposite to the second buffer groove.

13. The gas-liquid separation structure according to claim 12, characterized in that: The first drainage hole is lower than the second drainage hole.

14. The gas-liquid separation structure according to claim 12, characterized in that: A cross-sectional area of ​​the first drainage hole is greater than a cross-sectional area of ​​the second drainage hole.

15. The gas-liquid separation structure according to claim 12, characterized in that: A cross-sectional area of ​​the second communication hole is larger than a cross-sectional area of ​​the second leakage hole.

16. The gas-liquid separation structure according to claim 8, characterized in that: The cross-sectional area of ​​the second communicating hole is larger than that of the first communicating hole, and the cross-sectional area of ​​the first communicating hole is larger than that of the first drainage hole.

17. A drive assembly, characterized in that: Comprising a gas-liquid separation structure according to any one of claims 1-16.

18. A vehicle, characterized in that: It comprises the gas-liquid separation structure according to any one of claims 1 to 16 or the drive assembly according to claim 17.

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