Oil-gas separator and automobile

Abstract

The present invention provides an oil-gas separator and an automobile, belonging to the technical field of automobile parts, comprising: a base, on which a first mounting cavity is provided, and a first connecting plane is provided at the cavity opening of the first mounting cavity; an oil-gas separation mechanism, one end of which is embedded in the first mounting cavity; a drive mechanism, one end of which is provided with a second mounting cavity and the other end is located outside the first mounting cavity, and a second connecting plane is provided between the two ends of the drive mechanism, wherein a flexible positioning portion is provided on the drive mechanism, and the deformation displacement of the flexible positioning portion is equal to the difference between the axes of the first mounting cavity and the second mounting cavity, thereby promoting the coaxial arrangement of the base, the oil-gas separation mechanism, and the drive mechanism. The present invention eliminates errors caused by assembly or processing through the flexible positioning portion, ensures the coaxiality of the assembly of the base, the oil-gas separation mechanism, and the drive mechanism, eliminates noise, and increases the service life of the oil-gas separation mechanism.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile parts and relates to an oil-gas separator, and in particular to an automobile with the oil-gas separator. Background Art

[0002] In existing technology, when an engine is running, a small amount of gas (called blowby) leaks from the high pressure in the combustion chamber through the piston rings and into the crankcase. This gas contains oil mist and other particulate contaminants. If left untreated, it not only affects engine performance but also increases emissions. Therefore, to address this oil-gas mixture, an oil-gas separator is installed on the engine to separate the oil molecules from the gas molecules. The separated oil is then returned to the engine for reuse, while the remaining gas enters the combustion chamber through the exhaust port and re-combustes.

[0003] However, during the assembly process of existing oil-gas separators, static positioning structures such as positioning holes and positioning columns are generally used. In order to ensure the smooth connection between the positioning holes and the positioning columns, the fit between the positioning holes and the positioning columns is a clearance fit. The existence of the gap will cause the coaxiality of the various components in the entire oil-gas separator to deviate, and the coaxial setting cannot be truly achieved, resulting in abnormal noise when the oil-gas separator is working, thereby shortening the service life of the product. Summary of the Invention

[0004] The purpose of the present invention is to solve the above problems in the existing technology and to provide an oil-gas separator that can eliminate noise and extend service life.

[0005] The purpose of the present invention can be achieved through the following technical solutions: An oil-gas separator, comprising:

[0006] A base having a first mounting cavity formed thereon, a first connecting plane formed at an opening of the first mounting cavity, and a mounting plane for fixing the base, wherein the first connecting plane and the mounting plane form a predetermined angle;

[0007] An oil-gas separation mechanism, one end of which is embedded in the first mounting cavity, and the oil-gas separation mechanism realizes oil-gas separation by centrifugal rotation, wherein the axis of the oil-gas separation mechanism is coaxially arranged with the axis of the first mounting cavity;

[0008] The driving mechanism has one end extending into the first mounting cavity and is provided with a second mounting cavity which is nested and connected to the other end of the oil-gas separation mechanism. The other end of the driving mechanism is located outside the first mounting cavity, and a second connecting plane is provided between the two ends of the driving mechanism. The fixing of the driving mechanism and the base is completed by the connection between the first connecting plane and the second connecting plane. A flexible positioning portion is provided on the driving mechanism, and the deformation displacement of the flexible positioning portion is equal to the difference between the axes of the first mounting cavity and the second mounting cavity, thereby prompting the base, the oil-gas separation mechanism and the driving mechanism to be coaxially arranged.

[0009] In the above-mentioned oil-gas separator, the flexible positioning portion includes a concave cavity, and the concave cavity is arranged on the outer wall of the driving mechanism, and is filled with a deformable elastic member, wherein the side wall of the elastic member is higher than the side where the cavity mouth is located. When the base is connected to the driving mechanism, the inner and outer side walls of the elastic member respectively abut against the bottom of the cavity and the cavity wall of the first accommodating cavity.

[0010] In the above-mentioned oil-gas separator, the concave cavity is arranged in an annular shape or in an arc shape, and the corresponding elastic member is arranged in an annular shape or in an arc shape.

[0011] In the above-mentioned oil-gas separator, when the concave cavity is arranged in an arc shape and the number of the concave cavity is one, the arc-shaped concave cavity is arranged at any position on the outer side wall of the driving mechanism.

[0012] In the above-mentioned oil-gas separator, when the concave cavity is arranged in an arc shape and the number of the concave cavities is multiple, the multiple arc-shaped concave cavities are distributed in a ring shape along the axial direction of the driving mechanism, and two adjacent arc-shaped concave cavities are separated by the outer side wall of the driving mechanism, or the multiple arc-shaped concave cavities are arranged side by side along the axial direction of the driving mechanism, and two adjacent arc-shaped concave cavities are separated by the outer side wall of the driving mechanism.

[0013] In the above-mentioned oil-gas separator, a pre-positioning portion is also provided between the base and the driving mechanism, and the pre-positioning portion includes a positioning convex portion and a positioning concave portion, wherein the positioning convex portion is provided on the base, and the positioning concave portion is provided on the driving mechanism, and the positioning connection between the base and the driving mechanism is realized through the concave-convex cooperation between the positioning concave portion and the positioning convex portion.

[0014] In the above-mentioned oil-gas separator, the positioning protrusion is arranged on the first connecting plane, and the positioning recess is arranged on the second connecting plane and passes through the second connecting plane, wherein the positioning protrusion is arranged in a columnar shape and the positioning recess is arranged in a circular shape.

[0015] In the above-mentioned oil-gas separator, the number of positioning protrusions is at least two, and the number of positioning recesses is also at least two. When the number of positioning protrusions and positioning recesses is two, the two positioning protrusions and the two positioning recesses are respectively arranged diagonally; when the number of positioning protrusions and the positioning recesses is three, the three positioning protrusions and the three positioning recesses are respectively distributed in a triangular shape.

[0016] In the above-mentioned oil-gas separator, the positioning recess comprises a positioning lug formed by extending outward from the outer side wall of the driving mechanism, and a positioning hole is provided on the positioning lug, wherein the positioning hole is plug-fitted with the positioning protrusion.

[0017] In the above-mentioned oil-gas separator, it also includes a first connecting lug formed by extending outward from the outer wall of the driving mechanism, and a first connecting hole is provided on the first connecting lug, and a second connecting lug is formed by extending outward from the outer wall of the base, and a second connecting hole is provided on the second connecting lug. When the driving mechanism is connected to the base, the first connecting hole is aligned with the second connecting hole, and the connection between the two is fixed by a fastener.

[0018] In the above-mentioned oil-gas separator, the positioning lug is integrally provided with the first connecting lug at the corresponding position, and the positioning protrusion is provided on the corresponding second connecting lug.

[0019] In the above-mentioned oil-gas separator, a mounting platform is formed on the base at one end away from the first accommodating cavity and extending outward along the outer contour of the base, and the mounting plane is located on the mounting platform, wherein a plurality of connectors are provided on the mounting platform.

[0020] In the above-mentioned oil-gas separator, a first flange, an optical axis section and a threaded section are provided on the connecting member along the axial direction of the connecting member, wherein the outer diameter of the first flange is larger than the diameter of the plug hole on the mounting platform that is plugged into and mated with the connecting member.

[0021] In the above-mentioned oil-gas separator, an annular protrusion is provided on the mounting platform along the edge of the plug hole. When the connector is connected in place, the first flange abuts against the annular protrusion.

[0022] In the above oil-gas separator, a second flange is further provided between the optical axis section and the threaded section, and the length from the lower surface of the first flange to the lower surface of the second flange is equal to the depth of the plug hole.

[0023] The present invention also provides an oil-gas separator, comprising the oil-gas separator.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) The oil-gas separator provided by the present invention eliminates errors caused by assembly or processing through a flexible positioning portion, ensures the coaxiality of the assembly of the base, the oil-gas separation mechanism and the driving mechanism, eliminates noise, and increases the service life of the oil-gas separation mechanism;

[0026] (2) The annular elastic member can not only be used as a flexible positioning part to eliminate the displacement difference caused by assembly error or processing error, but also has a sealing function to prevent the oil and gas generated after the oil and gas separation mechanism from overflowing from the connection between the base and the drive mechanism, thereby improving the sealing effect of the entire oil and gas separator;

[0027] (3) The annular cavity is divided into a plurality of annularly distributed arcuate cavities, and an arcuate elastic member is filled in each arcuate cavity. The advantage of such a setting is that after all the arcuate elastic members are embedded in the corresponding arcuate cavities, if the base and the driving mechanism are connected, the coaxiality of the two cannot be guaranteed. In this case, one or more of the multiple arcuate elastic members can be replaced to achieve the coaxiality of the base and the driving mechanism after they are connected, without having to replace the entire annular elastic member, thereby reducing the replacement cost and making the use more flexible.

[0028] (4) By providing the first flange, the contact area between the connector and the mounting platform is increased, thereby improving the stability of the base when it is fixed. In addition, by providing the first flange, the gasket can be omitted, which reduces the cost on the one hand and avoids the situation of missing gaskets on the other hand, thereby improving the reliability of the base installation;

[0029] (5) By providing an annular protrusion on the edge of the plug hole, on the one hand, the strength of the position is improved, and on the other hand, the connector will not be deformed at the position after being tightened, thereby improving the reliability of the base fixation;

[0030] (6) The length between the lower surface of the first flange and the lower surface of the second flange is equal to the depth of the plug hole. This arrangement can disperse the fastening force generated between the connector and the base to between the first flange and the mounting platform, and between the second flange and the connection position of the base, thereby improving the installation reliability of the base while avoiding deformation of the mounting platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of an oil-gas separator of the present invention.

[0032] Figure 2 It is a structural diagram of the driving mechanism in a preferred embodiment of the present invention.

[0033] Figure 3 It is a structural schematic diagram of the driving mechanism from another perspective in a preferred embodiment of the present invention.

[0034] Figure 4 yes Figure 3 A cross-sectional view of the drive mechanism is shown along the cutting line AA.

[0035] Figure 5 It is a structural diagram of the oil-gas separation mechanism in a preferred embodiment of the present invention.

[0036] Figure 6 It is a structural schematic diagram of a base in a preferred embodiment of the present invention.

[0037] Figure 7 It is a structural schematic diagram of a connecting piece in a preferred embodiment of the present invention.

[0038] In the figure, 100, base; 110, first mounting cavity; 120, first connecting plane; 130, positioning protrusion; 140, second connecting lug; 141, second connecting hole; 150, mounting platform; 151, mounting plane; 152, plug hole; 153, annular protrusion;

[0039] 200, oil-gas separation mechanism; 210, bearing; 220, first connection end; 230, second connection end; 240, oil-gas separation assembly;

[0040] 300, driving mechanism; 310, second mounting cavity; 320, second connecting plane; 330, flexible positioning portion; 331, concave cavity; 332, elastic member; 340, positioning recess; 341, positioning lug; 342, positioning hole; 350, first connecting lug; 351, first connecting hole;

[0041] 400 , connecting piece; 410 , first flange; 420 , optical axis segment; 430 , threaded segment; 440 , second flange. DETAILED DESCRIPTION

[0042] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0043] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0044] like Figures 1 to 7 As shown, the present invention provides an oil-gas separator, comprising:

[0045] The base 100 is provided with a first mounting cavity 110, and a first connecting plane 120 is provided at the cavity opening of the first mounting cavity 110. The base 100 is also provided with a mounting plane 151 for fixing the base 100, wherein the first connecting plane 120 and the mounting plane 151 form a predetermined angle;

[0046] An oil-gas separation mechanism 200 is embedded in the first mounting cavity 110 at one end, and the oil-gas separation mechanism 200 realizes oil-gas separation by centrifugal rotation, wherein the axis of the oil-gas separation mechanism 200 is coaxial with the axis of the first mounting cavity 110;

[0047] The driving mechanism 300 has one end extending into the first mounting cavity 110 and is provided with a second mounting cavity 310 which is nested and connected to the other end of the oil-gas separation mechanism 200. The other end of the driving mechanism 300 is located outside the first mounting cavity 110, and a second connecting plane 320 is provided between the two ends of the driving mechanism 300. The driving mechanism 300 and the base 100 are fixed by the connection between the first connecting plane 120 and the second connecting plane 320. A flexible positioning portion 330 is provided on the driving mechanism 300, and the deformation displacement of the flexible positioning portion 330 is equal to the difference between the axes of the first mounting cavity 110 and the second mounting cavity 310, thereby causing the base 100, the oil-gas separation mechanism 200 and the driving mechanism 300 to be coaxially arranged.

[0048] It is worth mentioning that the two ends of the oil-gas separation mechanism 200 are a first connection end 220 and a second connection end 230, and an oil-gas separation component 240 is located between the first connection end 220 and the second connection end 230, and the first connection end 220 is rotatably connected to the base 100, and the second connection end 230 is rotatably connected to the driving mechanism 300. The oil-gas separation mechanism 200 is limited between the base 100 and the driving mechanism 300 by locking between the base 100 and the driving mechanism 300, and the oil-gas separation mechanism 200 is caused to rotate circumferentially by the driving mechanism 300.

[0049] It is further pointed out that in order to ensure that the oil-gas separation mechanism 200 does not shake or move during rotation, a bearing 210 can be set at the bottom of the first installation cavity 110 and the bottom of the second installation cavity 310, wherein the first connection end 220 and the second connection end 230 on the oil-gas separation mechanism 200 are respectively nested and connected with the corresponding bearings 210.

[0050] In this embodiment, by providing a bearing 210, on the one hand, the wear of the first connecting end 220 and the second connecting end 230 is reduced, thereby extending the service life of the oil-gas separation mechanism 200; on the other hand, the installation limit of the oil-gas separation mechanism 200 can be achieved, thereby preventing the oil-gas separation mechanism 200 from moving during operation, thereby improving the smoothness and stability of the operation of the oil-gas separation mechanism 200.

[0051] It is worth mentioning that there are generally the following ways to install bearing 210:

[0052] First, two bearings 210 are installed on the base 100 and the driving mechanism 300 respectively. At this time, the two ends of the oil-gas separation mechanism 200 are respectively nested with the corresponding bearings 210;

[0053] Second, the two bearings 210 are nested and connected to the first connection end 220 and the second connection end 230, respectively. At this time, the bottom of the first installation cavity 110 and the bottom of the second installation cavity 310 are respectively provided with a sinking cavity for nesting the corresponding bearings 210, so that the two bearings 210 are respectively embedded in the corresponding sinking cavity;

[0054] Third, one of the two bearings 210 is installed on the base 100 or the driving mechanism 300, and the other bearing 210 is nested on the oil-gas separation mechanism 200, that is, when one of the two bearings 210 is installed on the base 100, the other bearing 210 is nested in the second connection end 230 of the oil-gas separation mechanism 200; when one of the two bearings 210 is installed on the driving mechanism 300, the other bearing 210 is nested in the first connection end 220 of the oil-gas separation mechanism 200.

[0055] Regarding the three methods described above, if the first method is adopted, i.e., two bearings 210 are mounted on the base 100 and the drive mechanism 300, respectively, the axis of the bearing 210 on the base 100 is coaxial with the axis of the first mounting cavity 110, and the axis of the bearing 210 on the drive mechanism 300 is coaxial with the axis of the second mounting cavity 310. However, due to assembly or processing errors, when the base 100 and the drive mechanism 300 are connected, the axis of the first mounting cavity 110 and the axis of the second mounting cavity 310 cannot be guaranteed to be collinear. When the two ends of the oil-gas separator 200 are connected to the corresponding bearings 210, the axis of the oil-gas separator 200 cannot be guaranteed to be collinear with the axis of the base 100 or the axis of the drive mechanism 300, and may be collinear with one of the two. This results in the axis of the oil-gas separator 200 being arranged at an angle. When the oil-gas separator 200 rotates, it may produce abnormal noise, reduce the oil-gas separation effect, and shorten the service life of the oil-gas separator 200.

[0056] If the second method is adopted, that is, the two bearings 210 are respectively embedded in the first connecting end 220 and the second connecting end 230, this connection method can ensure the coaxiality between the oil-gas separation mechanism 200 and the bearings 210. However, in order to realize the installation of the bearings 210, a structure for fixing the bearings 210 must be set in the first installation cavity 110 and the second installation cavity 310. The simple operation is to set the first installation cavity 110 and the second installation cavity 310 into a stepped structure, that is, to set a sinking cavity at the bottom of the first installation cavity 110 and the second installation cavity 310, and embed the bearings 210 in the sinking cavity. However, when the base 100 is connected to the drive mechanism 300, it cannot be guaranteed that the axis of the sinking cavity on the base 100 and the axis of the sinking cavity on the drive mechanism 300 are collinear. There is still a situation where the axis of the oil-gas separation mechanism 200 is not collinear with the axis of the base 100 and the axis of the drive mechanism 300.

[0057] If the third method is adopted, when one of the two bearings 210 is installed in the base 100 and the other bearing 210 is nested on the oil-gas separation mechanism 200, then the axis of the base 100 and the axis of the oil-gas separation mechanism 200 are collinearly arranged, but not necessarily collinearly arranged with the axis of the driving mechanism 300; similarly, when one of the two bearings 210 is installed in the driving mechanism 300 and the other bearing 210 is nested on the oil-gas separation mechanism 200, then the axis of the driving mechanism 300 and the axis of the oil-gas separation mechanism 200 are collinearly arranged, but not necessarily collinearly arranged with the axis of the base 100.

[0058] Therefore, regardless of the method used, there will be misalignment. Therefore, the oil-gas separator provided by the present invention uses a flexible positioning portion 330 to eliminate errors caused by assembly or processing, ensuring the coaxiality of the base 100, the oil-gas separation mechanism 200, and the drive mechanism 300, eliminating noise and extending the service life of the oil-gas separation mechanism 200.

[0059] In addition, it is worth mentioning that although the oil-gas separation component 240 is located between the first connection end 220 and the second connection end 230, it is close to one end and away from the other end. For example, in this embodiment, the oil-gas separation component 240 is close to the first connection end 220 and away from the second connection end 230. Therefore, the first installation cavity 110 needs to accommodate the oil-gas separation component 240, and the separation of oil and gas is also completed in the first installation cavity 110, so that the cross-sectional area of the first installation cavity 110 is larger than the cross-sectional area of the second installation cavity 310.

[0060] It is further pointed out that the driving mechanism 300 drives the oil-gas separation mechanism 200 to rotate, uses an energized coil to generate an alternating magnetic field, and then drives the oil-gas separation mechanism 200 to rotate circumferentially.

[0061] Preferably, the flexible positioning portion 330 includes a cavity 331, and the cavity 331 is arranged on the outer wall of the driving mechanism 300, and a deformable elastic member 332 is filled in the cavity 331, wherein the side wall of the elastic member 332 is higher than the side where the cavity mouth of the cavity 331 is located. When the base 100 is connected to the driving mechanism 300, the inner and outer side walls of the elastic member 332 respectively abut against the bottom of the cavity 331 and the cavity wall of the first installation cavity 110.

[0062] In this embodiment, after the base 100 is connected to the drive mechanism 300, due to the existence of assembly errors or processing errors, there is a corresponding displacement error between the axis of the base 100 and the axis of the drive mechanism 300. At this time, the deformation of the elastic member 332 can compensate for the displacement error, thereby ensuring the coaxiality of the base 100 and the drive mechanism 300 after assembly, and further achieving the coaxiality of the base 100, the drive mechanism 300 and the oil-gas separation mechanism 200.

[0063] It is further pointed out that the concave cavity 331 can be arranged in a ring shape or in an arc shape, and the corresponding elastic member 332 can be arranged in a ring shape or in an arc shape.

[0064] It's worth noting that when cavity 331 is annular, forming an annular cavity, the corresponding elastic member 332 is an annular elastic member, and the annular cavity and the annular elastic member are nested. In this case, the annular elastic member not only serves as a flexible positioning portion 330 to eliminate displacement differences caused by assembly or machining errors, but also provides a sealing function, preventing the oil and gas generated by the oil-gas separator 200 from escaping from the connection between the base 100 and the drive mechanism 300, thereby improving the sealing effect of the entire oil-gas separator.

[0065] When the concave cavity 331 is arranged in an arc shape, the number of the concave cavity 331 can be one or more. When the number of the concave cavity 331 is one, the arc-shaped concave cavity can be set at any position on the outer wall of the driving mechanism 300. It is only necessary to ensure that the two sides of the arc-shaped elastic part located in the arc-shaped concave cavity can abut against the bottom of the arc-shaped concave cavity and the cavity wall of the first installation cavity 110.

[0066] When the concave cavities 331 are arranged in an arc shape and there are multiple of them, the multiple arc-shaped concave cavities can be distributed in an annular shape along the axis of the driving mechanism 300, and two adjacent arc-shaped concave cavities are separated by the outer wall of the driving mechanism 300. Alternatively, the multiple arc-shaped concave cavities can be arranged side by side along the axis of the driving mechanism 300, and two adjacent arc-shaped concave cavities are separated by the outer wall of the driving mechanism 300.

[0067] It is worth mentioning that the cavity 331 on the outer wall of the driving mechanism 300 is formed by the outer wall of the driving mechanism 300 being recessed in the radial direction.

[0068] In this embodiment, the annular cavity is divided into a plurality of annularly distributed arcuate cavities, and an arcuate elastic member is filled in each arcuate cavity. The advantage of such a setting is that after all the arcuate elastic members are embedded in the corresponding arcuate cavities, if the base 100 is connected to the drive mechanism 300, the coaxiality of the two cannot be guaranteed. At this time, one or more of the multiple arcuate elastic members can be replaced to achieve the coaxiality of the base 100 and the drive mechanism 300 after being connected, without replacing the entire annular elastic member, thereby reducing the replacement cost and making the use more flexible.

[0069] Preferably, a pre-positioning portion is further provided between the base 100 and the driving mechanism 300, and the pre-positioning portion includes a positioning protrusion 130 and a positioning recess 340, wherein the positioning protrusion 130 is provided on the base 100, and the positioning recess 340 is provided on the driving mechanism 300, and the positioning connection between the base 100 and the driving mechanism 300 is realized through the concave-convex cooperation between the positioning recess 340 and the positioning protrusion 130.

[0070] It is worth mentioning that the position of the positioning recess 340 and the position of the positioning protrusion 130 can be interchanged, that is, the positioning protrusion 130 is disposed on the driving mechanism 300 , and the positioning recess 340 is disposed on the base 100 .

[0071] It is further pointed out that the positioning protrusion 130 and the positioning recess 340 can be formed on the base 100 and the driving mechanism 300 respectively, that is, the positioning protrusion 130 is integrally provided with the base 100, and the positioning recess 340 is integrally provided with the driving mechanism 300. Alternatively, one of the positioning protrusion 130 and the positioning recess 340 is formed on the corresponding structure, and the other is provided separately. For example, the base 100 and the driving mechanism 300 are both provided with a positioning recess 340. When the base 100 and the driving mechanism 300 are connected, the positioning recess 340 on the base 100 is aligned with the positioning recess 340 on the driving mechanism 300, and then the positioning protrusion 130 passes through the positioning recess 340 on the base 100 and the positioning recess 340 on the driving mechanism 300 and is fixed to the positioning recess 340 of the base 100 or the positioning recess 340 of the driving mechanism 300.

[0072] To further illustrate, the positioning recess 340 is configured as a connection hole, namely a first connection hole 351 and a second connection hole 141, and the first connection hole 351 is provided on the base 100, and the second connection hole 141 is provided on the driving mechanism 300, wherein one of the first connection hole 351 and the second connection hole 141 is provided in a columnar shape, and the other connection hole is provided in a conical shape, and the positioning protrusion 130 is a latch, when the first connection hole 351 is provided in a columnar shape and the second connection hole 141 is provided in a conical shape, the latch is inserted from the first connection hole 351 and fixed in the second connection hole 141; when the first connection hole 351 is provided in a conical shape and the second connection hole 141 is provided in a columnar shape, the latch is inserted from the second connection hole 141 and fixed in the first connection hole 351.

[0073] It is worth mentioning that in this embodiment, the positioning recess 340 is set on the driving mechanism 300 and the positioning protrusion 130 is set on the base 100, and the positioning recess 340 is integrally formed on the driving mechanism 300 and the positioning protrusion 130 is integrally formed on the base 100.

[0074] It is further pointed out that the positioning protrusion 130 is arranged on the first connecting plane 120, and the positioning recess 340 is arranged on the second connecting plane 320 and passes through the second connecting plane 320, wherein the positioning protrusion 130 is arranged in a columnar shape and the positioning recess 340 is arranged in a circular shape.

[0075] It is further pointed out that the number of positioning protrusions 130 is at least two. Similarly, the number of positioning recesses 340 is also at least two. When the number of positioning protrusions 130 and positioning recesses 340 is two, the two positioning protrusions 130 and the two positioning recesses 340 are respectively arranged diagonally; when the number of positioning protrusions 130 and the number of positioning recesses 340 is three, the three positioning protrusions 130 and the three positioning recesses 340 are respectively distributed in a triangular shape.

[0076] Preferably, the positioning recess 340 includes a positioning lug 341 formed by extending outward from the outer side wall of the driving mechanism 300 , and a positioning hole 342 is provided on the positioning lug 341 , wherein the positioning hole 342 is plug-fitted with the positioning protrusion 130 .

[0077] Preferably, it also includes a first connecting lug 350 formed by extending outward from the outer wall of the driving mechanism 300, and a first connecting hole 351 is provided on the first connecting lug 350, and a second connecting lug 140 formed by extending outward from the outer wall of the base 100, and a second connecting hole 141 is provided on the second connecting lug 140. When the driving mechanism 300 is connected to the base 100, the first connecting hole 351 is aligned with the second connecting hole 141, and the connection between the two is fixed by fasteners.

[0078] It is worth mentioning that, in order to simplify the structure, the positioning lug 341 can be integrally provided with the first connecting lug 350 at the corresponding position, and at the same time, the positioning protrusion 130 can be provided on the corresponding second connecting lug 140 .

[0079] Preferably, a mounting platform 150 is formed on the base 100 at one end away from the first mounting cavity 110 and extending outward along the outer contour of the base 100, and the mounting plane 151 is located on the mounting platform 150, wherein a plurality of connectors 400 are provided on the mounting platform 150.

[0080] In the prior art, a structure is fixed by a fastener. The general method is to fill a sleeve in the through hole connected by the fastener, and to embed a washer at the end of the fastener that contacts the connected object. However, this connection method is not only cumbersome, but also increases the cost of the product.

[0081] In this embodiment, there is no need to provide a sleeve and a washer, and the base 100 can be installed directly through the connector 400, which is convenient and reliable to operate, and correspondingly reduces the production cost of the product.

[0082] It is further pointed out that a first flange 410, an optical axis section 420 and a threaded section 430 are provided on the connector 400 along the axial direction of the connector 400, wherein the outer diameter of the first flange 410 is larger than the diameter of the plug hole 152 on the mounting platform 150 that is plugged into the connector 400.

[0083] In this embodiment, by providing the first flange 410, the contact area between the connector 400 and the mounting platform 150 is increased, thereby improving the stability of the base 100 when it is fixed. In addition, by providing the first flange 410, the gasket can be omitted, which reduces costs on the one hand and avoids the situation of missing gaskets on the other hand, thereby improving the reliability of the installation of the base 100.

[0084] It is further pointed out that an annular protrusion 153 is provided on the mounting platform 150 along the edge of the plug hole 152 . When the connector 400 is connected in place, the first flange 410 abuts against the annular protrusion 153 .

[0085] In this embodiment, an annular protrusion 153 is provided on the edge of the plug hole 152 to improve the strength of the position and prevent the connector 400 from deforming at the position after being tightened, thereby improving the reliability of the base 100 fixation.

[0086] It is further noted that a second flange 440 is disposed between the optical axis segment 420 and the threaded segment 430, and the length from the lower surface of the first flange 410 to the lower surface of the second flange 440 is equal to the depth of the insertion hole 152. That is, when the connector 400 is installed, the lower surface of the second flange 440 is flush with the installation plane 151.

[0087] In this embodiment, the length between the lower surface of the first flange 410 and the lower surface of the second flange 440 is equal to the depth of the plug hole 152. This arrangement, on the one hand, disperses the fastening force generated between the connector 400 and the base 100 to between the first flange 410 and the mounting platform 150, and between the connection position of the second flange 440 and the base 100, thereby improving the installation reliability of the base 100 while avoiding deformation of the mounting platform 150.

[0088] It should be noted that, in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly defined. The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0089] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0090] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. An oil-gas separator, characterized in that: include: A base having a first mounting cavity formed thereon, a first connecting plane formed at an opening of the first mounting cavity, and a mounting plane for fixing the base, wherein the first connecting plane and the mounting plane form a predetermined angle; An oil-gas separation mechanism, one end of which is embedded in the first mounting cavity, and the oil-gas separation mechanism realizes oil-gas separation by centrifugal rotation, wherein the axis of the oil-gas separation mechanism is coaxially arranged with the axis of the first mounting cavity; The drive mechanism has one end extending into the first mounting cavity and provided with a second mounting cavity nested with the other end of the oil-gas separation mechanism, the other end of the drive mechanism being located outside the first mounting cavity, and a second connecting plane being provided between the two ends of the drive mechanism, wherein the drive mechanism is fixed to the base through the connection between the first connecting plane and the second connecting plane, wherein a flexible positioning portion is provided on the drive mechanism, and the deformation displacement of the flexible positioning portion is equal to the difference between the axes of the first mounting cavity and the second mounting cavity, thereby facilitating the coaxial arrangement of the base, the oil-gas separation mechanism, and the drive mechanism; The flexible positioning portion includes a concave cavity, and the concave cavity is arranged on the outer wall of the driving mechanism, and is filled with a deformable elastic member, wherein the side wall of the elastic member is higher than the side where the cavity mouth is located. When the base is connected to the driving mechanism, the inner and outer side walls of the elastic member respectively correspond to the bottom of the cavity and the cavity wall of the first installation cavity.

2. The oil-gas separator according to claim 1, characterized in that: The concave cavity is arranged in an annular shape or in an arc shape, and the corresponding elastic member is arranged in an annular shape or in an arc shape.

3. The oil-gas separator according to claim 2, characterized in that: When the concave cavity is arranged in an arc shape and the number of the concave cavity is one, the arc-shaped concave cavity is arranged at any position on the outer side wall of the driving mechanism.

4. The oil-gas separator according to claim 2, characterized in that: When the concave cavity is arranged in an arc shape and there are multiple concave cavities, the multiple arc-shaped concave cavities are distributed in a ring shape along the axial direction of the driving mechanism, and two adjacent arc-shaped concave cavities are separated by the outer side wall of the driving mechanism, or the multiple arc-shaped concave cavities are arranged side by side along the axial direction of the driving mechanism, and two adjacent arc-shaped concave cavities are separated by the outer side wall of the driving mechanism.

5. The oil-gas separator according to claim 1, characterized in that: A pre-positioning portion is also provided between the base and the driving mechanism, and the pre-positioning portion includes a positioning convex portion and a positioning concave portion, wherein the positioning convex portion is provided on the base, and the positioning concave portion is provided on the driving mechanism. The positioning connection between the base and the driving mechanism is realized through the concave-convex cooperation between the positioning concave portion and the positioning convex portion.

6. The oil-gas separator according to claim 5, characterized in that: The positioning protrusion is arranged on the first connection plane, and the positioning concave is arranged on the second connection plane and passes through the second connection plane, wherein the positioning protrusion is arranged in a columnar shape and the positioning concave is arranged in a circular shape.

7. The oil-gas separator according to claim 5, characterized in that: The number of positioning protrusions is at least two, and the number of positioning recesses is also at least two. When the number of positioning protrusions and positioning recesses is two, the two positioning protrusions and the two positioning recesses are respectively arranged diagonally; when the number of positioning protrusions and the positioning recesses is three, the three positioning protrusions and the three positioning recesses are respectively distributed in a triangular shape.

8. The oil-gas separator according to claim 5, characterized in that: The positioning recess comprises a positioning lug formed by extending outward from the outer side wall of the driving mechanism, and a positioning hole is provided on the positioning lug, wherein the positioning hole is plug-fitted with the positioning protrusion.

9. The oil-gas separator according to claim 8, characterized in that: It also includes a first connecting lug formed by extending outward from the outer wall of the driving mechanism, and a first connecting hole is provided on the first connecting lug, and a second connecting lug is formed by extending outward from the outer wall of the base, and a second connecting hole is provided on the second connecting lug. When the driving mechanism is connected to the base, the first connecting hole is aligned with the second connecting hole, and the connection between the two is fixed by a fastener.

10. The oil-gas separator according to claim 9, characterized in that: The positioning lug is integrally arranged with the first connecting lug at the corresponding position, and the positioning protrusion is arranged on the corresponding second connecting lug.

11. The oil-gas separator according to any one of claims 1 to 10, characterized in that: An end of the base away from the first installation cavity extends outward along the outer contour of the base to form a mounting platform, and the mounting plane is located on the mounting platform, wherein a plurality of connecting members are arranged on the mounting platform.

12. The oil-gas separator according to claim 11, characterized in that: The connecting piece is provided with a first flange, an optical axis section and a threaded section along the axial direction of the connecting piece, wherein the outer diameter of the first flange is larger than the diameter of the plug hole on the mounting platform that is plugged in with the connecting piece.

13. The oil-gas separator according to claim 12, characterized in that: An annular protrusion is provided on the installation platform along the edge of the plug hole. When the connector is connected in place, the first flange abuts against the annular protrusion.

14. The oil-gas separator according to claim 12, characterized in that: A second flange is further provided between the optical axis section and the threaded section, and the length from the lower surface of the first flange to the lower surface of the second flange is equal to the depth of the plug hole.

15. An automobile, characterized in that: The oil-gas separator comprises the oil-gas separator according to any one of claims 1 to 14.

Images