Filter material, skeleton, filter element and spin-on filter

Abstract

The application discloses filter material, a skeleton, a filter core and a spin-on filter, the filter material has a folded part in a corrugated shape in an axial direction, the skeleton has a first fixing disc and a second fixing disc connected at two ends of the folded part, a connecting sheet is connected between the first fixing disc and the second fixing disc, the filter core is composed of the filter material and the skeleton, and the spin-on filter is internally provided with the filter core. The application can respond to a bump state occurring in the process of driving the automobile, make the first fixing disc vibrate in a certain amplitude between the first spring and the second spring, further drive the filter material to vibrate in a folded and compressed manner, the vibration can well clean and peel off impurities adsorbed on the surface of the filter material, and further improve the filtering effect of the filter core, and the bump of the automobile is accompanied by the driving process of the automobile, so that normal cleaning of the filter material can be maintained.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of filter, in particular to filter material, framework, filter element and spin-on filter. BACKGROUND

[0002] Filter refers to the accessory that plays the role of filtering impurities or gas through filter paper. Generally, it refers to automobile filter, which is a part of engine. Among them, the oil filter is located in the engine lubrication system. Its upstream is the oil pump, and the downstream is each part that needs to be lubricated in the engine.

[0003] Under normal circumstances, the oil filter is composed of a shell, a cover plate, a filter element, a spring and a sealing ring. In recent years, the technical improvement of the oil filter is also various. One of them is to improve the structure of the oil filter to reduce the amount of impurities adsorbed on the filter element, so as to improve the use efficiency of the filter element.

[0004] Prior art 1 discloses that a magnetic adsorption zone, a large particle adsorption zone, a fine particle adsorption zone and a gum adsorption zone are sequentially arranged from top to bottom in the oil inlet channel.

[0005] Prior art 2 discloses that a flow guide structure is arranged inside the shell body to guide the oil and impurities entering the shell body to the inner side wall of the shell body, so that the oil and impurities fall to the bottom of the shell body by gravity, thereby avoiding the impurities in the oil from adhering to the filter paper core to cause the filter core assembly to be blocked, reducing the frequency of replacing the filter core assembly, and prolonging the service life of the oil filter.

[0006] Prior art 3 discloses that a cleaning ring is arranged outside the filter element, and cleaning teeth on the cleaning ring extend into the wrinkle groove and contact the groove wall in sequence to clean the surface of the filter paper, thereby avoiding the problem of blockage of the paper filter core hole.

[0007] The present application aims to provide a structure different from the existing filter to solve the problem that the filter element surface adsorbs more impurities and blocks the filter element after long-term work, resulting in reduced filter effect.

[0008] Prior art:

[0009] Chinese patent document 1 with publication number CN107165693A;

[0010] Chinese patent document 2 with publication number CN105508103A;

[0011] Chinese patent document 3 with publication number CN105041418A. SUMMARY

[0012] In view of the problems of the prior art, the present application provides filter material, framework, filter element and spin-on filter, and the specific technical solutions are as follows:

[0013] One of the purposes of the present application is to provide a filter material comprising:

[0014] folding parts, which are axially corrugated and radially annular, and which are axially deformed in response to an external vibration environment.

[0015] The filter material further comprises connecting parts, which are arranged at both axial ends of the folding parts.

[0016] Another purpose of the present application is to provide a framework for cooperating with the filter material, comprising:

[0017] a first fixing disc, which is arranged to be sealingly connected with one axial end of the folding parts;

[0018] a second fixing disc, which is arranged to be sealingly connected with the other axial end of the folding parts;

[0019] connecting pieces, which are respectively connected with the first fixing disc and the second fixing disc at both ends thereof, and which are annularly and spacedly arranged inside the filter material, and which are elastic thin pieces;

[0020] The first fixing disc and the second fixing disc are deformed in response to an external vibration environment, so that the connecting pieces are bent and the folding parts are axially deformed.

[0021] Preferably, there is a gap between the filter material and the connecting pieces.

[0022] A third purpose of the present application is to provide a filter core, comprising:

[0023] any one of the filter materials described above;

[0024] any one of the frameworks described above;

[0025] The filter material is sleeved on the framework, one end of the filter material is sealingly connected with the first fixing disc, and the other end of the filter material is sealingly connected with the second fixing disc.

[0026] A fourth purpose of the present application is to provide a spin-on filter, comprising:

[0027] a housing, which has an opening and a cavity formed inside the opening;

[0028] a cover plate, which is sealingly connected to the opening end of the housing;

[0029] a first spring, which is arranged inside the housing and abuts against the cavity bottom;

[0030] a second spring, which is arranged inside the housing and abuts against the cover plate;

[0031] Any one of the above-mentioned filter element is arranged in a housing, the first fixed disc is arranged between the first spring and the second spring, and the first spring and the second spring are balanced on the first fixed disc, the second fixed disc is fixed relative to the cover plate, and the first fixed disc vibrates in response to external vibration environment and drives the folded part to vibrate axially.

[0032] Preferably, a sealing washer is further included, which is arranged between the cover plate and the second fixed disc, one end surface of the sealing washer is fixedly connected with the cover plate, and the other end surface of the sealing washer is fixedly connected with the second fixed disc.

[0033] Preferably, coaxial through holes are arranged on the second fixed disc, the sealing washer and the cover plate, the through hole of the second fixed disc has a ring-shaped first flange at the bottom, the through hole of the sealing washer has a ring-shaped second flange at the top, and the through hole of the cover plate has a ring-shaped third flange at the top, the second flange is interference-fitted in the first flange, and the third flange is interference-fitted in the second flange.

[0034] Preferably, the upper edge of the third flange is higher than the lower edge of the first flange.

[0035] Preferably, the first fixed disc has a counterweight.

[0036] The present application has the following beneficial effects: the present application can respond to the bumping state of the automobile during driving, so that the first fixed disc vibrates between the first spring and the second spring within a certain amplitude, thereby driving the filter material to fold and compress and vibrate, the vibration can well clean and peel off the impurities adsorbed on the surface of the filter material, thereby improving the filtering effect of the filter element, and since the bumping of the automobile occurs accompanying the driving of the automobile, the normal cleaning of the filter material can be maintained. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 Exploded view of parts of the filter

[0038] Figure 2 Assembly view of the filter

[0039] Figure 3 Exploded view of parts of the filter element

[0040] Figure 4 Structure view of the framework

[0041] Figure 5 State view of the framework after the connecting piece is bent

[0042] Figure 6 Structure view of the filter element

[0043] Figure 7Figure 2 is a schematic view of the connection between the connecting part and the first fixing disc and the second fixing disc;

[0044] Figure 8 Figure 3 is a schematic view of the structure of the connecting part;

[0045] Figure 9 Figure 4 is a schematic view of the connection between the second fixing disc, the sealing gasket and the cover plate. Figure 8 Figure 5 is an enlarged view of part A in figure 4;

[0046] Figure 10 Figure 6 is a schematic view of the connection between the second fixing disc, the sealing gasket and the cover plate. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be described clearly and completely below in conjunction with the embodiments.

[0048] Figure 1 Figure 1 shows a schematic view of the exploded parts of the filter. Figure 1 In the embodiment, the filter described in the embodiment comprises a housing 100, a first spring 200, a filter element 300, a second spring 400, a sealing gasket 500 and a cover plate 600, the housing 100 has one open end, the cover plate 600 is encapsulated in the open end of the housing 100, so that an internal cavity is formed in the housing 100, and the first spring 200, the filter element 300, the second spring 400 and the sealing gasket 500 are all installed in the internal cavity.

[0049] Figure 2 Figure 7 shows a schematic view of the assembly of the filter. Figure 1 In the embodiment, after the filter described in the embodiment is assembled, the cover plate 600 is sealingly fixed in the open end of the housing 100, the sealing gasket 500, the filter element 300 and the first spring 200 are sequentially arranged in the internal cavity from the cover plate 600, the second spring 400 is sleeved on the outside of the filter element 300, and the two ends of the second spring 400 are respectively abutted against the filter element 300 and the cover plate 600, and the first spring 200 is arranged between the filter element 300 and the housing 100, so that the first spring 200 and the second spring 400 exert balanced forces on the filter element 300, and the filter element 300 is relatively fixed in the housing 100.

[0050] Continuing to refer to figure 8, Figure 2 The filter element 300 divides the internal cavity in the housing 100 into a first region M and a second region N, the cover plate 600 is provided with an inlet 601 and an outlet 602, and a filtering channel is formed by the first region M, the second region N, the inlet 601 and the outlet 602, as shown by arrows in figure 9. Figure 2 As shown by arrows in figure 9, oil to be filtered enters the first region M through the inlet 601, passes through the filter element 300 and then enters the second region N, and flows out from the outlet 602, and in this process, the filter element 300 filters out impurities in the oil.

[0051] In this embodiment, the cover plate 600 and the housing 100 are connected by a rolled edge seal, and sealant can also be applied at the seal connection to improve the sealing effect.

[0052] Figure 3 The diagram shown is an exploded view of the filter element 300. Figure 3 In this design, the filter element 300 includes a frame 310 and a filter media 320, with the filter media 320 fixed to the frame 310. The filter media 320 has an overall cylindrical structure and is foldable.

[0053] Figure 4 The diagram shown is a structural schematic of the skeleton 310. Figure 4 In the frame 310, a first fixing plate 311, a connecting piece 312, and a second fixing plate 313 are connected in sequence. The first fixing plate 311, the connecting piece 312, and the second fixing plate 313 are all sheet metal. The first fixing plate 311 and the second fixing plate 313 are preferably disc-shaped and coaxially arranged. The two ends of the connecting piece 312 are respectively fixed to the first fixing plate 311 and the second fixing plate 313, for example, by spot welding. Several connecting pieces 312 are provided and are arranged in a ring on the first fixing plate 311 at intervals to allow oil passing through the filter material 320 to flow out from the gaps between the connecting pieces 312. A through hole 314 is provided in the center of the second fixing plate 313, and the through hole 314 communicates with the outlet 602 to allow oil to flow out from the through hole 314 and the outlet 602.

[0054] In this embodiment, the connecting piece 312 is made of a thin metal sheet, for example, 0.5 mm, so that the connecting piece 312 has bending deformation properties. Figure 5 As shown, this is the state of the frame 310 after the connecting piece 312 is bent. The length of the connecting piece 312 itself is constant. After the connecting piece 312 is bent, the distance between the first fixing plate 311 and the second fixing plate 313 at both ends of the connecting piece 312 will change, which will cause the filter material 320 on the frame 310 to fold, compress and deform.

[0055] Combination Figure 1 and 3 It can be seen that the filter material 320 in this embodiment is formed by splicing together several filter elements 321. Figure 6The structure of the filter 321 is shown. The filter 321 includes a folded portion 321-b and connecting portions 321-a located at both ends of the folded portion 321-b. The folded portion 321-b is corrugated, and the folded portion 321-b and the connecting portions 321-a are integrated, and can be formed by folding the filter material. In combination with the foregoing description, the filter material 320 is arranged outside the framework 310, and when the connecting piece 312 is bent, the folded portion 321-b is partially folded. In order to avoid interference between the filter material 320 and the connecting piece 312, the inner diameter of the filter material 320 is generally required to be greater than the outer diameter of the circle where the connecting piece 312 is located, and a space is reserved for the connecting piece 312 to be bent and deformed.

[0056] The connecting portions 321-a are used to connect with the first fixed disc 311 and the second fixed disc 313, so as to achieve the purpose of fixing the filter material 320 on the framework 310. More specifically, as shown in Figure 7 , the free ends of the connecting portions 321-a are all directed outward, and the connecting portions 321-a are sealed and fixed by crimping. Similarly, in order to provide sealing, sealant can also be applied between the connecting portions 321-a and the first fixed disc 311 and the second fixed disc 313.

[0057] In this embodiment, the filter 321 can be directly bonded to form the filter material 320 by using an adhesive. Alternatively, the filter material 320 can be formed by using the connecting piece 322 for connection and fixation.

[0058] Figure 8 The structure of the connecting piece 322 is shown. As shown in Figure 8 , the shape of the connecting piece 322 is consistent with that of the filter 321, so as to match the outer shape of the filter 321. The connecting piece 322 also has elastic deformation performance, and can be made of synthetic resin, for example. As shown in Figure 9 , both sides of the connecting piece 322 are provided with a caulking 322-a, and the thickness of the caulking 322-a is the same as that of the filter 321. The filter 321 is inserted into the caulking 322-a, and adhesive is applied to the edge of the filter 321 before the filter 321 is inserted into the caulking 322-a, so as to seal the connecting edge and ensure the filtering effect of the filter material 320.

[0059] Figure 10 The connection between the second fixed disc 313, the sealing gasket 500 and the cover plate 600 is shown. Figure 9In the embodiment, the bottom of the through hole 314 of the second fixing disc 313 has a first flange in the shape of a ring, the top of the sealing gasket 500 also has a second flange in the shape of a ring, the second flange is inserted into the first flange and is in interference fit; the center of the cover plate 600 has a third flange in the shape of a ring, the third flange is inserted into the second flange and is in interference fit, the sealing gasket 500 is made of rubber material, the second fixing disc 313 and the cover plate 600 are made of metal material or other solid material, and through the cooperation, the second fixing disc 313, the sealing gasket 500 and the cover plate 600 are fixedly and sealingly connected.

[0060] In addition, through the fixed connection relationship among the second fixing disc 313, the sealing gasket 500 and the cover plate 600, the second fixing disc 313 is stably fixed on the cover plate 600, and the first fixing disc 311 can be relatively moved. According to the foregoing description, the first fixing disc 311 is balanced and fixed by the first spring 200 and the second spring 400, so that in normal state, the first fixing disc 311 is stationary. As known by those skilled in the art, the filter is installed on the automobile, and when the automobile is running, the automobile will vibrate, especially when passing through the deceleration belt, the pothole and the like, the vibration amplitude is very obvious, and the stable state of the first fixing disc 311 will be broken in the vibrating state, a certain amplitude of vibration occurs between the first spring 200 and the second spring 400, and further drives the filter material 320 to fold, compress and vibrate. The vibration can well clean and peel off the impurities adsorbed on the surface of the filter material 320, thereby improving the filtering effect of the filter element.

[0061] In the embodiment, the first fixing disc 311 can also be counterweighted, so that the first fixing disc 311 has a certain weight and can sensitively vibrate in response to the vibration of the automobile.

[0062] Figure 9 In the embodiment, the upper edge of the third flange is higher than the lower edge of the first flange, so as to ensure the clamping and fixing effect of the third flange and the first flange on the sealing gasket 500 and improve the stability of the connection of the three.

[0063] Figure 7 In the embodiment, in order to facilitate the placement of the second spring 400, the outer diameter of the first fixing disc 311 is greater than that of the second fixing disc 313, and an annular embedding groove 315 is arranged on the side of the first fixing disc 311 facing the second fixing disc 313, so as to facilitate the placement and limiting of the second spring 400, and the other end of the second spring 400 abuts against the cover plate 600.

[0064] Figure 9 In the embodiment, the filter is a spin-on type, and therefore the third flange has an internal thread to facilitate spin-on, and the inside of the third flange is the outlet 602.

[0065] In some other specific embodiments of the present application, the filter element 300 can also be of an integrated structure, rather than the split and spliced structure as described above.

[0066] The above examples are only used to illustrate the technical solutions of the present application, and not to limit the same.

Claims

1. A filter cartridge, characterized by, The filter element comprises a filter material and a framework; the filter material comprises a folded part (321-b) and a connecting part (321-a), the folded part (321-b) is axially corrugated and radially annular, the folded part (321-b) is axially vibrated and deformed in response to an external vibration environment, and the connecting part (321-a) is arranged at the axial ends of the folded part (321-b); the framework comprises a first fixed disc (311), a second fixed disc (313) and a connecting sheet (312), the first fixed disc (311) is sealingly connected with one axial end of the folded part (321-b), the second fixed disc (313) is sealingly connected with the other axial end of the folded part (321-b), the two ends of the connecting sheet (312) are connected with the first fixed disc (311) and the second fixed disc (313) respectively, the connecting sheet (312) is arranged inside the filter material and is annularly and spacedly distributed, and the connecting sheet (312) is an elastic sheet; the filter material is sleeved on the framework, and a gap is formed between the filter material and the connecting sheet (312); the first fixed disc (311) and the second fixed disc (313) are changed in distance in response to the external vibration environment, so that the connecting sheet (312) is bent and drives the folded part (321-b) to be axially vibrated and deformed.

2. A spin-on filter characterized by, The filter element comprises: a shell (100) having an opening and a cavity formed inside the opening; a cover plate (600) sealingly connected to the opening end of the shell (100); a first spring (200) arranged inside the shell (100) and abutting against the cavity bottom; a second spring (400) arranged inside the shell (100) and abutting against the cover plate (600); the filter element of claim 1 is arranged in the shell (100), the first fixed disc (311) is arranged between the first spring (200) and the second spring (400), and the first spring (200) and the second spring (400) are both abutted against the first fixed disc (311) to balance the first fixed disc (311), the second fixed disc (313) is fixed relative to the cover plate (600), and the first fixed disc (311) is vibrated in response to the external vibration environment and drives the folded part (321-b) to be axially vibrated.

3. The spin-on filter of claim 2, wherein, a sealing washer (500) is further arranged between the cover plate (600) and the second fixed disc (313), one end surface of the sealing washer (500) is fixedly connected with the cover plate (600), and the other end surface of the sealing washer (500) is fixedly connected with the second fixed disc (313).

4. The spin-on filter of claim 3, wherein, coaxial through holes are arranged on the second fixed disc (313), the sealing washer (500) and the cover plate (600), the through hole bottom of the second fixed disc (313) has an annular first flange, the through hole top of the sealing washer (500) has an annular second flange, and the through hole top of the cover plate (600) has an annular third flange, the second flange is interference-fitted in the first flange, and the third flange is interference-fitted in the second flange.

5. The spin-on filter of claim 4, wherein, the upper edge of the third flange is higher than the lower edge of the first flange.

6. The spin-on filter of claim 2, wherein, The first fixed disc (311) has a counterweight on it.

Images