WO2021017974A1 - 机油滤清器总成和车辆 - Google Patents

机油滤清器总成和车辆 Download PDF

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Publication number
WO2021017974A1
WO2021017974A1 PCT/CN2020/103501 CN2020103501W WO2021017974A1 WO 2021017974 A1 WO2021017974 A1 WO 2021017974A1 CN 2020103501 W CN2020103501 W CN 2020103501W WO 2021017974 A1 WO2021017974 A1 WO 2021017974A1
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WIPO (PCT)
Prior art keywords
filter assembly
filter
flange
oil filter
hook
Prior art date
Application number
PCT/CN2020/103501
Other languages
English (en)
French (fr)
Inventor
郝玉国
田龙
刘志东
曹永伟
闫立虎
许富娜
孙佳欢
赵小宝
陶元元
柴建军
马天长
Original Assignee
长城汽车股份有限公司
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Filing date
Publication date
Application filed by 长城汽车股份有限公司 filed Critical 长城汽车股份有限公司
Publication of WO2021017974A1 publication Critical patent/WO2021017974A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
    • B01D29/54—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Definitions

  • the present application relates to the field of automobiles, and in particular, to an oil filter assembly and a vehicle with the oil filter assembly.
  • the engine oil filter assembly provides a certain pressure and clean lubricating oil to the lubrication system to ensure good lubrication of each movement pair. Affected by the mold ejection, the center frame cannot be injection molded with the filter cover. The connection between the two must be realized through the assembly process.
  • the specific connection form is: the mating end face of the filter cover claw and the center frame is a 30° included angle Inclined surface design, the number of jaws is 6, the width of a single jaw is 6.2mm, the gap between the jaw and the central frame slot is 3.4mm, and the chamfer at the root of the jaw is R0.2mm.
  • the jaw width is narrow, the root chamfer is small, and there are shortcomings of stress concentration and insufficient strength.
  • the mating end surface of the jaw and the central skeleton is designed with a bevel, and the slot on the mating end of the central skeleton is a clearance fit, and there is a jaw The problem of weak connection with the central skeleton.
  • the center frame is separated from the filter seat in the axial direction. During installation and use, the end face of the center frame is subjected to uneven hydraulic pressure, which may easily cause part of the groove to fall out of the claws, and the claws in the remaining grooves are leveled. The shearing force in the direction can easily cause the jaws to break and the function of the oil filter assembly to fail.
  • the present invention aims to provide an oil filter assembly to improve the reliability of the oil filter assembly.
  • An oil filter assembly comprising: a filter cover, the inner side of the filter cover is provided with a claw; a filter seat, the filter cover and the filter seat are buckled with each other , To form a cavity inside the filter cover and the filter seat; a central skeleton, the central skeleton is located in the cavity, the claws are engaged with the central skeleton, so
  • the central framework has a limiting structure, and the limiting structure axially abuts on the filter seat.
  • the central skeleton has a flange
  • the filter cover is provided with a plurality of the claws
  • the plurality of claws are clamped and fixed with the flange
  • the flange has a top surface, a bottom surface and a tapered slope, the tapered slope connects the top surface and the bottom surface, and the area of the top surface is smaller than the area of the bottom surface;
  • the card The claw includes a connecting portion and a hook portion, the connecting portion is adapted to connect the filter cover and the hook portion, the hook portion protrudes toward the central axis of the flange, and the tapered slope It is configured such that during the process of the clamping claw and the flange, the hook portion reaches the bottom surface along the tapered inclined surface.
  • the bottom surface is a flat surface
  • the hook portion has a hook portion plane and a hook portion slope
  • the hook portion slope connects the hook portion plane and the connecting portion
  • the hook portion plane is suitable for connecting to the bottom surface. Fit or parallel.
  • the plane of the hook portion is parallel to the bottom surface, and the gap value between the two is in the range of 0.8 mm to 1.2 mm.
  • the included angle between the hook plane and the hook inclined surface ranges from 60° to 65°, and the included angle between the tapered inclined surface and the bottom surface ranges from 70° to 75°; and/or, so The included angle between the hook plane and the hook inclined surface is 10° smaller than the included angle between the tapered inclined surface and the bottom surface.
  • connection between the connecting portion and the filter cover has a rounded corner, and the radius of the rounded corner is in the range of 2 mm to 5 mm.
  • central frame, the limiting structure, and the flange are integrally formed.
  • the unilateral interference between the outer edge of the flange and the connecting portion is 0.1 mm to 0.5 mm.
  • the oil filter assembly of the present invention has the following advantages: the coordination structure of the claws on the filter cover and the central framework is optimized, and in the axial direction, the central framework increases the limit The structure ensures that the center frame does not come out of the claws during the use of the oil filter assembly, and the claws are not easily broken due to small force, which helps to improve the reliability of the connection between the center frame and the filter cover, thereby increasing The service life of the oil filter assembly.
  • Another object of the present invention is to provide a vehicle including the above-mentioned oil filter assembly.
  • Figure 1 is a cross-sectional view of an embodiment of an oil filter assembly according to the present invention.
  • Figure 2 is an enlarged view of A in Figure 1;
  • Fig. 3 is an enlarged view of B in Fig. 1.
  • Filter seat 1 filter cover 2, flange plate 3, jaw 4, center frame 5, limit structure 6, oil return structure 7, filter element assembly 8, bypass valve assembly 9, first groove 10,
  • the second groove 11 the oil inlet 12, the main oil passage 13, the oil return groove 14, the limit arm 15, the top surface 16, the bottom surface 17, the tapered slope 18, the connecting portion 19, the hook portion 20, the hook portion plane 21, Hook inclined surface 22, oil filter assembly 100.
  • the oil filter assembly 100 may include: a filter cover 2, a filter seat 1 and a center frame 5.
  • the filter cover 2 and the filter seat 1 are interlocked with each other to form a cavity inside the filter cover 2 and the filter seat 1.
  • the center frame 5 is located in the cavity, and the filter cover 2 is arranged inside There are claws 4, and the claws 4 are engaged with the central frame 5 to realize the relative fixation of the filter cover 2 and the central frame 5.
  • the central frame 5 has a limiting structure 6 which abuts on the filter seat 1 to prevent excessive axial movement of the central frame 5.
  • the side of the filter cover 2 facing the filter seat 1 is provided with an integrated injection-molded claw 4, the shape of the claw 4 can be a "J" shape, the claw 4 and the upper end of the center frame 5 are clamped Connect with.
  • the upper end of the filter seat 1 is threadedly connected with a filter cover 2 to realize a fixed connection between the filter cover 2 and the filter seat 1, and the bonding surfaces of the two can be sealed by an "O" ring.
  • the filter seat 1 is provided with a limit support arm 15, which is in contact with the limit structure 6 of the center frame 5, which can effectively achieve the effect of axial limit and limit The axial movement of the central framework 5, so that the central framework 5 will not move axially, and will not affect the firmness of the central framework 5 and the clamping jaw 4 to ensure that the central framework 5 and the filter cover 2 Will not loosen.
  • the oil filter assembly 100 of the embodiment of the present invention optimizes the mating structure of the pawl 4 on the filter cover 2 and the central frame 5, and in the axial direction, the central frame 5 adds a limiting structure 6 to ensure oil During the use of the filter assembly 100, the center frame 5 never comes out of the claw 4, and because the center frame 5 is not prone to axial movement, the claw 4 is less stressed and not easy to break, which is beneficial to lift the center frame 5. The reliability of the connection with the filter cover 2, thereby increasing the service life of the oil filter assembly 100.
  • the central frame 5 has a flange 3, and there are a plurality of claws 4, and the plurality of claws 4 are clamped and fixed with the flange 3.
  • the center frame 5, the limit structure 6, and the flange 3 can be integrally formed, which is beneficial to reduce the parts of the oil filter assembly 100, facilitate the assembly of the oil filter assembly 100, and improve the assembly accuracy.
  • the number of jaws 4 can be 4 or 6, which are evenly arranged on the filter cover 2.
  • the jaws 4 and the flange 3 are connected together by a press-fitting process to realize the upper end of the center frame 5 and the filter
  • the cover 2 is fixedly connected.
  • the flange 3 has a top surface 16, a bottom surface 17 and a tapered slope 18, the tapered slope 18 connects the top surface 16 and the bottom surface 17, and the area of the top surface 16 is smaller than the area of the bottom surface 17.
  • the pawl 4 includes a connecting portion 19 and a hook portion 20.
  • the connecting portion 19 is suitable for connecting the filter cover 2 and the hook portion 20.
  • the hook portion 20 protrudes toward the central axis of the flange 3, and the tapered slope 18 is configured as :In the process of clamping the claw 4 and the flange 3, the hook portion 20 reaches the bottom surface 17 along the tapered slope 18.
  • the tapered inclined surface 18 is used to guide the assembly of the jaws 4, which facilitates the use of the press-fitting process to assemble the center frame 5 on the filter cover 2.
  • the cone of the flange 3 The inclined surface 18 contacts the hook portion 20, and the pawl 4 is elastically deformed along the tapered inclined surface 18.
  • the hook portion 20 reaches the bottom surface 17 along the tapered inclined surface 18, and the hook portion 20 rebounds under its own elastic deformation force. , To ensure that the hook portion 20 hooks the bottom surface 17 of the flange 3, thereby indirectly fixing the flange 3 to the filter cover 2.
  • the bottom surface 17 is a flat surface.
  • the hook portion 20 has a hook portion plane 21 and a hook portion inclined surface 22.
  • the hook portion inclined surface 22 connects the hook portion plane 21 and the connecting portion 19, and the hook portion plane 21 is suitable for being attached to or parallel to the bottom surface 17.
  • the hook plane 21 is adapted to fit or be parallel to the bottom surface 17.
  • the mating end surface of the hook plane 21 and the bottom surface 17 is designed to have an included angle of 0°, which helps to ensure that the claw 4 and the flange 3 are firmly clamped after assembly .
  • the hook plane 21 and the bottom surface 17 are parallel, and the gap value between the two ranges from 0.8mm to 1.2mm.
  • the gap value between the hook plane 21 and the bottom surface 17 can be 1mm.
  • the machining accuracy of the jaw 4 and the flange 3 is too high, which leads to a decrease in the yield rate and an increase in manufacturing costs.
  • the gap between the hook plane 21 and the bottom surface 17 is greater than 1.2mm, the jaw 4 cannot effectively limit the flange 3, which causes the center frame 5 to shake during operation, which affects the stability of the oil filter assembly 100 Sex.
  • the angle between the hook plane 21 and the hook inclined surface 22 is ⁇
  • the angle range of ⁇ is 60° ⁇ 65°
  • the angle between the tapered inclined surface 18 and the bottom surface 17 is ⁇
  • the angle range of ⁇ is 70° ⁇ 75°.
  • the angle between the tapered slope 18 and the bottom surface 17 of the flange 3 can be designed to be 70° ⁇ 75°, for example, 72°.
  • the angle between the tapered slope 18 and the bottom surface 17 is less than 70°, the method
  • the bottom surface 17 of the flange plate 3 protrudes too large relative to the top surface 16.
  • the protruding bottom surface 17 increases the deformation of the claw 4, causing the claw 4 to break easily.
  • the tapered slope 18 and the bottom surface When the included angle of 17 is greater than 75°, the bottom surface 17 of the flange 3 protrudes too small relative to the top surface 16, and the jaws 4 cannot effectively clamp the flange 3, causing the jaws 4 to easily fall out of the flange 3.
  • the included angle between the hook plane 21 and the hook inclined surface 22 can be designed to be 60° ⁇ 65°, for example, 62°. In a specific embodiment, the included angle between the hook plane 21 and the hook inclined surface 22 may be greater than that of the flange The angle between the tapered inclined surface 18 of 3 and the bottom surface 17 is smaller by 10°, which facilitates the assembly of the jaw 4 and the flange 3.
  • connection between the connecting portion 19 and the filter cover 2 has rounded corners, and the radius of the rounded corners ranges from 2mm to 5mm, for example, 3mm.
  • the width of the joint can be up to 12.5mm, which helps to reduce the stress concentration at the joint between the connecting part 19 and the filter cover 2 and improve the strength of the claw 4, thereby helping to prevent the claw 4 from breaking and improving the oil filter assembly 100 service life.
  • the unilateral interference between the outer edge of the flange 3 and the connecting portion 19 is 0.1mm ⁇ 0.5mm, for example, it can be 0.2mm or 0.3mm, so as to ensure that the jaws 4 clamp the flange 3 at the same time.
  • the amount of deformation of the claw 4 is small, and the durability of the claw 4 is improved.
  • the matching amount of the limit structure 6 and the filter seat 1 is -0.9mm ⁇ +0.5mm.
  • the maximum interference between the limit structure 6 on the center frame 5 and the limit support arm 15 on the filter seat 1 is 0.5mm, and the maximum gap is 0.9mm, and the center frame 5 is due to the hook plane 21 and With the clearance of the bottom surface 17, the displacement range that the center frame 5 can move is 0.8mm ⁇ 1.2mm.
  • the limit structure 6 can further enhance the effect of the axial limit of the center frame 5, and it has been verified by experiments that the 0.5mm interference affects the center frame. 5 The overall strength has no effect.
  • the oil filter assembly 100 includes a filter seat 1, and the upper end of the filter seat 1 is threadedly connected with a filter cover 2.
  • the two are sealed by an "O" ring, and the filter cover 2 Inside is equipped with a mold for one-time injection molding of the jaws 4, the center frame 5, the flange 3 at the upper end of the center frame 5, the limit structure 6 at the lower end of the center frame 5, and the oil return structure 7 are integrally injection molded.
  • the filter cover 2 and The central frame 5 is connected by the jaws 4 and the flange 3 by a press-fitting process.
  • the upper end of the filter element assembly 8 is connected with the central frame 5 by interference press-fitting, and the lower end of the filter element assembly 8 is connected to the filter by interference press-fitting.
  • the seats 1 are connected together, and the upper end of the center frame 5 integrates a bypass valve assembly 9 through interference press fitting, and the bypass valve assembly 9 can communicate with the filter element assembly 8 in an open state.
  • the filter seat 1 is provided with an oil inlet 12 and a main oil passage 13.
  • the oil inlet 12 and the main oil passage 13 are respectively connected to the first groove 10 and the second groove 11, and the first groove 10 contains pre-filtered oil ,
  • the second tank 11 contains filtered oil.
  • a vehicle according to another embodiment of the present invention includes the oil filter assembly 100 of the present invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

一种机油滤清器总成（100）和车辆，该机油滤清器总成（100）包括：滤清器盖（2），所述滤清器盖（2）的内侧设置有卡爪（4）；滤清器座（1），所述滤清器盖（2）与所述滤清器座（1）相互扣合，以在所述滤清器盖（2）与所述滤清器座（1）的内部形成空腔；中心骨架（5），所述中心骨架（5）位于所述空腔内，所述卡爪（4）与所述中心骨架（5）卡接配合，所述中心骨架（5）具有限位结构（6），所述限位结构（6）轴向地止抵在所述滤清器座（1）上，该机油滤清器总成（100）优化了卡爪（4）与中心骨架（5）的配合结构，并且在中心骨架（5）轴向方向增加限位结构（6），可保证中心骨架（5）不脱出卡爪（4），且卡爪（4）受力小，不易断裂，从而有利于提高机油滤清器总成（100）的可靠性，进而增加机油滤清器总成（100）的使用寿命。

Description

机油滤清器总成和车辆
相关申请的交叉引用
本申请要求长城汽车股份有限公司于2019年7月26日提交的、实用新型名称为“机油滤清器总成和具有它的车辆”的、中国专利申请号201921196136.9的优先权。
技术领域
本申请涉及汽车领域，具体而言，涉及一种机油滤清器总成和具有该机油滤清器总成的车辆。
背景技术
发动机的机油滤清器总成向润滑***提供具有一定压力的、清洁的润滑油，以保证各运动副润滑良好。受模具出模影响，中心骨架无法与滤清器盖一同注塑成型，需通过装配工艺实现两者的连接，具体连接形式为：滤清器盖卡爪与中心骨架的配合端面为30°夹角斜面设计，卡爪数量为6个，单个卡爪宽度6.2mm，卡爪与中心骨架卡槽间隙值为3.4mm，卡爪根部倒角R0.2mm。综上，卡爪宽度窄，根部倒角小，存在应力集中，强度不足的缺点，且卡爪与中心骨架配合端面为斜面设计，与中心骨架配合端面上的卡槽为间隙配合，存在卡爪与中心骨架连接不牢固问题。另外中心骨架在轴向方向上与滤清器座分离，装机使用过程中，中心骨架端面受到油压不均匀的冲击力，容 易导致部分卡槽脱出卡爪，剩余卡槽内的卡爪受到水平方向的剪切力，易导致卡爪断裂、机油滤清器总成功能失效。
发明内容
有鉴于此，本发明旨在提出一种机油滤清器总成，以提高机油滤清器总成的可靠性。
为达到上述目的，本发明的技术方案是这样实现的：
一种机油滤清器总成，包括：滤清器盖，所述滤清器盖的内侧设置有卡爪；滤清器座，所述滤清器盖与所述滤清器座相互扣合，以在所述滤清器盖与所述滤清器座的内部形成空腔；中心骨架，所述中心骨架位于所述空腔内，所述卡爪与所述中心骨架卡接配合，所述中心骨架具有限位结构，所述限位结构轴向地止抵在所述滤清器座上。
根据本发明的一些实施方式，所述中心骨架具有法兰盘，所述滤清器盖设置有多个所述卡爪，且多个所述卡爪与所述法兰盘卡接固定。
进一步地，所述法兰盘具有顶面、底面和锥形斜面，所述锥形斜面连接所述顶面和所述底面，且所述顶面的面积小于所述底面的面积；所述卡爪包括：连接部和勾部，所述连接部适于连接所述滤清器盖与所述勾部，所述勾部朝向所述法兰盘的中心轴线凸出，且所述锥形斜面构造成：在所述卡爪与所述法兰盘卡接的过程中，所述勾部沿所述锥形斜面到达所述底面。
进一步地，所述底面为平面，所述勾部具有勾部平面和勾部斜面， 所述勾部斜面连接所述勾部平面与所述连接部，所述勾部平面适于与所述底面贴合或平行。
进一步地，所述勾部平面与所述底面平行，且二者之间的间隙值范围为0.8mm～1.2mm。
进一步地，所述勾部平面和所述勾部斜面的夹角范围为60°～65°，所述锥形斜面与所述底面的夹角范围为70°～75°；和/或，所述勾部平面和所述勾部斜面的夹角比所述锥形斜面与所述底面的夹角小10°。
进一步地，所述连接部与所述滤清器盖的连接处具有倒圆角，所述倒圆角的半径范围为2mm～5mm。
进一步地，所述中心骨架、所述限位结构、所述法兰盘一体成型。
进一步地，所述法兰盘的外边沿与所述连接部的单边过盈量为0.1mm～0.5mm。
相对于现有技术，本发明所述的机油滤清器总成具有以下优势：优化了滤清器盖上的卡爪与中心骨架的配合结构，并且在轴向方向上，中心骨架增加限位结构，保证机油滤清器总成使用过程中，中心骨架始终不脱出卡爪，且卡爪受力小，不容易断裂，从而有利于提升中心骨架与滤清器盖连接的可靠性，进而增加机油滤清器总成的使用寿命。
本发明的另一个目的在于提出一种车辆，包括上述的机油滤清器总成。
相对于现有技术，本发明所述的车辆具有的优势与机油滤清器总 成具有的优势相同，这里不再赘述。
附图说明
构成本发明的一部分的附图用来提供对本发明的进一步理解，本发明的示意性实施方式及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是根据本发明的机油滤清器总成的一种实施方式的剖视图；
图2是图1的A处放大图；
图3是图1的B处放大图。
附图标记说明：
滤清器座1、滤清器盖2、法兰盘3、卡爪4、中心骨架5、限位结构6、回油结构7、滤芯组件8、旁通阀组件9、第一槽10、第二槽11、进油口12、主油道13、回油槽14、限位支臂15、顶面16、底面17、锥形斜面18、连接部19、勾部20、勾部平面21、勾部斜面22、机油滤清器总成100。
具体实施方式
需要说明的是，在不冲突的情况下，本发明中的实施方式及实施方式中的特征可以相互组合。
下面将参考图1-图3并结合实施方式来详细说明本发明。
参照图1所示，根据本发明实施方式的机油滤清器总成100可以包括：滤清器盖2、滤清器座1和中心骨架5。
滤清器盖2与滤清器座1相互扣合，以在滤清器盖2与滤清器座1的内部形成空腔，中心骨架5位于空腔内，滤清器盖2的内侧设置有卡爪4，卡爪4与中心骨架5卡接配合，以实现滤清器盖2与中心骨架5的相对固定。中心骨架5具有限位结构6，限位结构6止抵在滤清器座1上，以此防止中心骨架5的轴向窜动量过大。
具体而言，滤清器盖2的朝向滤清器座1的一侧设有一体注塑成型的卡爪4，卡爪4的形状可以是“J”形，卡爪4与中心骨架5上端卡接配合。滤清器座1上端螺纹连接有滤清器盖2，以实现滤清器盖2与滤清器座1的固定连接，两者的贴合面之间可以通过“O”形圈进行密封。
如图1、图3所示，滤清器座1上设有限位支臂15，限位支臂15与中心骨架5的限位结构6接触，能够有效起到轴向限位的效果，限制中心骨架5的轴向移动，这样，中心骨架5不会发生轴向窜动，也就不会影响中心骨架5与卡爪4的卡接配合牢固度，保证中心骨架5与滤清器盖2不会松脱。
本发明实施方式的机油滤清器总成100优化了滤清器盖2上的卡爪4与中心骨架5的配合结构，并且在轴向方向上，中心骨架5增加限位结构6，保证机油滤清器总成100使用过程中，中心骨架5始终不脱出卡爪4，且由于中心骨架5不易发生轴向窜动，因此卡爪4受力小，不容易断裂，从而有利于提升中心骨架5与滤清器盖2连接的可靠性，进而增加机油滤清器总成100的使用寿命。
如图1-图2所示，中心骨架5具有法兰盘3，卡爪4为多个，且 多个卡爪4与法兰盘3卡接固定。
中心骨架5、限位结构6、法兰盘3可以是一体成型，从而有利于减少机油滤清器总成100零部件，便于机油滤清器总成100装配，提高装配精度。卡爪4的数量可以是4个或6个，均匀地布置在滤清器盖2上，卡爪4与法兰盘3用压装工艺连接在一起，以实现中心骨架5上端与滤清器盖2固定连接。
参照图2所示，法兰盘3具有顶面16、底面17和锥形斜面18，锥形斜面18连接顶面16和底面17，且顶面16的面积小于底面17的面积。
卡爪4包括：连接部19和勾部20，连接部19适于连接滤清器盖2与勾部20，勾部20朝向法兰盘3的中心轴线凸出，且锥形斜面18构造成：在卡爪4与法兰盘3卡接的过程中，勾部20沿锥形斜面18到达底面17。
考虑装配工艺可实施性，锥形斜面18用于引导卡爪4装配，从而有利于使用压装工艺将中心骨架5装配在滤清器盖2上，压装时，法兰盘3的锥形斜面18与勾部20接触，卡爪4沿锥形斜面18产生弹性变形，压装完成时，勾部20沿锥形斜面18到达底面17，勾部20在自身弹性变形力的作用下回弹，保证勾部20勾住法兰盘3的底面17，从而将法兰盘3间接固定在滤清器盖2上。
底面17为平面，勾部20具有勾部平面21和勾部斜面22，勾部斜面22连接勾部平面21与连接部19，勾部平面21适于与底面17贴合或平行。
勾部平面21适于与底面17贴合或平行，换言之，将勾部平面21与底面17配合端面设计为0°夹角，从而有利于保证卡爪4与法兰盘3装配后卡接牢固。
在一些实施方式中，勾部平面21与底面17平行，且二者之间的间隙值范围为0.8mm～1.2mm，例如勾部平面21与底面17间隙值可以是1mm，当勾部平面21与底面17间隙值小于0.8mm时，对卡爪4与法兰盘3的加工精度要求过高，导致良品率降低，增加制造成本。当勾部平面21与底面17间隙值大于1.2mm时，卡爪4无法对法兰盘3进行有效限位，从而导致中心骨架5在工作时产生晃动，影响机油滤清器总成100的稳定性。
参照图2所示，勾部平面21和勾部斜面22的夹角为α，α角度范围为60°～65°，锥形斜面18与底面17的夹角为β，β角度范围为70°～75°。
具体而言，法兰盘3的锥形斜面18与底面17的夹角可设计为70°～75°，例如可以是72°，锥形斜面18与底面17的夹角小于70°时，法兰盘3底面17相对于顶面16凸出过大，压装中心骨架5时，凸出的底面17使卡爪4变形量增大，从而导致卡爪4容易断裂，锥形斜面18与底面17的夹角大于75°时，法兰盘3底面17相对于顶面16凸出过小，卡爪4无法有效卡紧法兰盘3，从而导致卡爪4容易脱出法兰盘3。
勾部平面21和勾部斜面22的夹角可设计为60°～65°，例如可以是62°，在具体实施方式中，勾部平面21和勾部斜面22的夹角 可以比法兰盘3的锥形斜面18与底面17的夹角小10°，从而有利于卡爪4与法兰盘3的装配。
连接部19与滤清器盖2的连接处具有倒圆角，倒圆角的半径范围为2mm～5mm，例如可以是3mm，通过增大倒圆角，使得连接部19与滤清器盖2的连接处宽度可达12.5mm，从而有利于减少连接部19与滤清器盖2连接处的应力集中、提升卡爪4强度，进而有利于防止卡爪4断裂，提高机油滤清器总成100使用寿命。
法兰盘3的外边沿与连接部19的单边过盈量为0.1mm～0.5mm，例如可以是0.2mm或0.3mm，从而可以保证卡爪4在卡紧法兰盘3的同时，卡爪4变形量小，进而提高卡爪4耐久性。
参照图1所示，限位结构6与滤清器座1的配合量为-0.9mm～+0.5mm。也就是说，中心骨架5上的限位结构6与滤清器座1上的限位支臂15最大过盈量为0.5mm，最大间隙为0.9mm，而中心骨架5因勾部平面21与底面17的间隙，中心骨架5可以移动的位移范围为0.8mm～1.2mm，限位结构6能够进一步加强中心骨架5轴向限位的效果，且经过试验验证，0.5mm过盈量对中心骨架5整体强度无影响。
综上，机油滤清器总成100包括滤清器座1，滤清器座1上端螺纹连接有滤清器盖2，两者之间通过“O”形圈进行密封，滤清器盖2内设有模具一次注塑成型的卡爪4，中心骨架5、中心骨架5上端的法兰盘3、中心骨架5下端的限位结构6以及回油结构7一体注塑成型，滤清器盖2与中心骨架5通过卡爪4和法兰盘3采用压装工艺 连接在一起，滤芯组件8上端通过过盈压装与中心骨架5连接在一起，滤芯组件8下端通过过盈压装与滤清器座1连接在一起，中心骨架5上端通过过盈压装集成了旁通阀组件9，旁通阀组件9在打开状态下能与滤芯组件8相通。滤清器座1内设有进油口12和主油道13，进油口12和主油道13分别与第一槽10和第二槽11连通，其中第一槽10内为滤前机油，第二槽11内为滤后机油，当机油滤清器总成100保养时，残存的旧机油通过回油槽14泄漏至油底壳中，其作用为防止滤清器盖2拆卸过程中，机油泄漏至发动机外侧，影响外观。回油结构7与回油槽14通过“O”形圈密封。
根据本发明另一方面实施方式的车辆，包括本发明的机油滤清器总成100。
以上所述仅为本发明的较佳实施方式而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种机油滤清器总成(100)，其特征在于，包括：
    滤清器盖(2)，所述滤清器盖(2)的内侧设置有卡爪(4)；
    滤清器座(1)，所述滤清器盖(2)与所述滤清器座(1)相互扣合，以在所述滤清器盖(2)与所述滤清器座(1)的内部形成空腔；
    中心骨架(5)，所述中心骨架(5)位于所述空腔内，所述卡爪(4)与所述中心骨架(5)卡接配合，所述中心骨架(5)具有限位结构(6)，所述限位结构(6)轴向地止抵在所述滤清器座(1)上。
  2. 根据权利要求1所述的机油滤清器总成(100)，其特征在于，所述中心骨架(5)具有法兰盘(3)，所述滤清器盖(2)设置有多个所述卡爪(4)，且多个所述卡爪(4)与所述法兰盘(3)卡接固定。
  3. 根据权利要求2所述的机油滤清器总成(100)，其特征在于，所述法兰盘(3)具有顶面(16)、底面(17)和锥形斜面(18)，所述锥形斜面(18)连接所述顶面(16)和所述底面(17)，且所述顶面(16)的面积小于所述底面(17)的面积；
    所述卡爪(4)包括：连接部(19)和勾部(20)，所述连接部(19)适于连接所述滤清器盖(2)与所述勾部(20)，所述勾部(20)朝向所述法兰盘(3)的中心轴线凸出，且所述锥形斜面(18)构造成：在所述卡爪(4)与所述法兰盘(3)卡接的过程中，所述勾部(20)沿所述锥形斜面(18)到达所述底面(17)。
  4. 根据权利要求3所述的机油滤清器总成(100)，其特征在于，所述底面(17)为平面，所述勾部(20)具有勾部平面(21)和勾部斜面(22)，所述勾部斜面(22)连接所述勾部平面(21)与所述连接部(19)，所述勾部平面(21)适于与所述底面(17)贴合或平行。
  5. 根据权利要求4所述的机油滤清器总成(100)，其特征在于，所述勾部平面(21)与所述底面(17)平行，且二者之间的间隙值范围为0.8mm～1.2mm。
  6. 根据权利要求4所述的机油滤清器总成(100)，其特征在于：
    所述勾部平面(21)和所述勾部斜面(22)的夹角范围为60°～65°，所述锥形斜面(18)与所述底面(17)的夹角范围为70°～75°；和/或，
    所述勾部平面(21)和所述勾部斜面(22)的夹角比所述锥形斜面(18)与所述底面(17)的夹角小10°。
  7. 根据权利要求3所述的机油滤清器总成(100)，其特征在于：
    所述连接部(19)与所述滤清器盖(2)的连接处具有倒圆角，所述倒圆角的半径范围为2mm～5mm；和/或，
    所述法兰盘(3)的外边沿与所述连接部(19)的单边过盈量为0.1mm～0.5mm。
  8. 根据权利要求2-7中任意一项所述的机油滤清器总成(100)，其 特征在于，所述中心骨架(5)、所述限位结构(6)、所述法兰盘(3)一体成型。
  9. 根据权利要求1所述的机油滤清器总成(100)，其特征在于，所述限位结构(6)与所述滤清器座(1)的配合量为-0.9mm～+0.5mm。
  10. 一种车辆，其特征在于，包括根据权利要求2-9中任一项所述的机油滤清器总成(100)。
PCT/CN2020/103501 2019-07-26 2020-07-22 机油滤清器总成和车辆 WO2021017974A1 (zh)

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