Oil filter capable of preventing static electricity from being generated

By setting filter paper and conductive strips inside the housing of the oil filter, the problem of static electricity generation during fuel flow is solved, achieving static electricity discharge and stable fuel filtration, while improving fuel fluidity in low-temperature environments.

CN223447154UActive Publication Date: 2025-10-17SHANGHAI INTE AUTO PARTS CO LTD
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Patent Information

Application Number
CN202422609812.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-28
Publication Date
2025-10-17
Estimated Expiration
2034-10-28

AI Technical Summary

Technical Problem

As fuel flows, it rubs against the filter paper, generating static electricity. This static electricity can easily cause an electric arc inside the casing, which can damage the filter paper and reduce the filtration effect.

Method used

Filter paper and conductive strips are installed inside the housing of the oil filter. The conductive strips are connected to a conductive mechanism, which discharges static electricity generated during fuel flow, reducing static electricity buildup and arcing.

Benefits of technology

It effectively reduces the damage of static electricity to the filter paper, maintains the filtering effect of the filter paper, and improves the fluidity of the fuel in a low temperature environment through the heating mechanism.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an oil filter capable of preventing static electricity generation and relates to the field of automobile filters, the oil filter comprises a shell, filter paper and a conductive strip, the filter paper is arranged in the shell, an oil inlet hole and an oil outlet hole are formed in the shell, the conductive strip is arranged in the shell and makes contact with the filter paper, and a conductive mechanism is arranged on the shell and detachably connected with an automobile power source. The conductive mechanism is electrically connected with the conductive strip. The oil filter has the effect of reducing the adverse effect of static electricity on the filtering performance of the oil filter.
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Description

TECHNICAL FIELD

[0001] The application relates to the field of automobile filters, in particular to an oil filter capable of preventing static electricity. BACKGROUND

[0002] The oil filter refers to a fuel filter. By installing the oil filter in an automobile, the oil filter can filter diesel or gasoline energy, thereby reducing solid impurities in the fuel from entering and accumulating in an automobile engine and prolonging the service life of the automobile engine.

[0003] The related oil filter comprises a shell and filter paper. The shell is a cylindrical container structure, the filter paper is arranged in the shell, oil inlet holes and oil outlet holes are formed in the shell, fuel enters the shell through the oil inlet holes and flows out of the oil outlet holes, and the fuel passes through the filter paper in the shell, and the filter paper filters out solid impurities in the fuel.

[0004] The related technical solutions have the following defects: fuel rubs against the filter paper during the flow process and generates static electricity, the static electricity is likely to generate an electric arc in the shell and break the filter paper, and thus holes are generated on the surface of the filter paper, and the filtering effect of the filter paper is reduced. CONTENT OF THE INVENTION

[0005] In order to reduce the adverse effects of static electricity on the filtering performance of the oil filter, the application provides an oil filter capable of preventing static electricity.

[0006] The application provides an oil filter capable of preventing static electricity, which adopts the following technical solution:

[0007] The oil filter capable of preventing static electricity comprises a shell, filter paper and a conductive strip. The filter paper is arranged in the shell, oil inlet holes and oil outlet holes are formed in the shell, the conductive strip is arranged in the shell and in contact with the filter paper, a conductive mechanism is arranged on the shell, the conductive mechanism is detachably connected with an automobile power supply, and the conductive mechanism is electrically connected with the conductive strip.

[0008] By arranging the filter paper in the shell, fuel can enter the shell through the oil inlet holes and flow out of the oil outlet holes, the flow of the fuel in the shell passes through the filter paper, the filter paper filters out solid impurities in the fuel, the conductive strip is arranged in the shell, the conductive mechanism is connected with the conductive strip, and thus static electricity generated when the fuel flows can be conducted out through the conductive strip, the probability of static electricity accumulating in the shell and generating an electric arc is reduced, and the damage of static electricity to the filter paper in the oil filter is reduced.

[0009] Optionally, the filter paper is in a cylindrical structure, connecting plates are arranged on both ends of the filter paper, the connecting plates are connected with the shell, and the connecting plates are adhesively fixed with the filter paper.

[0010] By adopting the technical scheme, the filter paper is arranged in a cylindrical structure, and the connecting plates are arranged at two ends of the filter paper, so that the filter paper can be conveniently and quickly installed in the shell, the connecting plates keep the structure of the filter paper stable, the probability of stress deformation of the filter paper is reduced, and the filter paper keeps the oil filtering function.

[0011] Optionally, the shell comprises an upper end cover and an outer sleeve, one connecting plate is connected with the upper end cover, and the other connecting plate is connected with the outer sleeve.

[0012] By adopting the technical scheme, the upper end cover is arranged on the outer sleeve, the connecting plates at two ends of the filter paper are connected with the upper end cover and the outer sleeve respectively, and thus the oil filter is conveniently assembled, and the production efficiency is improved.

[0013] Optionally, the oil inlet hole is arranged on the upper end cover, the oil outlet hole is located at the center of the outer sleeve, and a through hole is arranged at the center of the connecting plate connected with the outer sleeve.

[0014] By adopting the technical scheme, the oil outlet hole is arranged on the outer sleeve, when fuel enters the shell from the oil inlet hole, the fuel is located outside the filter paper, and the fuel needs to pass through the filter paper and enter the cylinder formed by the filter paper during the process of flowing out of the oil outlet hole, so that solid impurities in the fuel can be filtered outside the filter screen.

[0015] Optionally, the conductive mechanism comprises an elastic piece, an end head, an upper conductive plate and a lower conductive plate, the upper conductive plate is connected to the upper end cover, the lower conductive plate is connected to the upper conductive plate away from the upper end cover, the elastic piece is connected to the lower conductive plate, the elastic piece is in contact with the conductive strip, the end head penetrates through the upper end cover and is in sealing connection with the upper end cover, one end head is in electrical connection with the upper conductive plate, and the other end head is in electrical connection with the lower conductive plate.

[0016] By adopting the technical scheme, the upper conductive plate and the lower conductive plate are arranged on the upper end cover, the two end heads are connected with the upper conductive plate and the lower conductive plate respectively, the user can make the static electricity on the conductive strip conduct to the circuit through the elastic piece by electrically connecting the end heads in the circuit, and thus the effect of eliminating static electricity is achieved, when the upper end cover is connected with the outer sleeve, the elastic piece abuts against the conductive strip and is deformed, and the elastic piece can always abut against the conductive strip and keep electrical connection, so that the probability of disconnection of the conductive mechanism and the conductive strip caused by automobile vibration is reduced.

[0017] Optionally, an insulating cover plate is arranged on the upper end cover, the insulating cover plate is arranged on the lower conductive plate away from the upper conductive plate, a clearance hole is arranged on the insulating cover plate, and the elastic piece extends out of the clearance hole.

[0018] By adopting the technical scheme, the insulating cover plate is arranged on the upper end cover, the insulating cover plate covers the connecting plate of the filter paper, after the filter paper filters out the solid impurities in the fuel, the impurities are located below the insulating cover plate, thereby reducing the probability of the impurities adhering to the surfaces of the upper conductive plate and the lower conductive plate, and keeping the conductivity of the conductive mechanism stable.

[0019] Optionally, the heating mechanism is arranged between the upper conductive plate and the lower conductive plate and is electrically connected with the upper conductive plate and the lower conductive plate respectively.

[0020] By adopting the technical scheme, the heating mechanism is arranged between the upper conductive plate and the lower conductive plate, the positive and negative poles of the heating mechanism are electrically connected with the upper conductive plate and the lower conductive plate respectively, the automobile power supply can supply power to the heating mechanism through the conductive mechanism, and the heating mechanism can convert the electric energy into heat energy to heat the fuel in the shell, thereby reducing the probability of the flowability of the fuel in the shell decreasing in the low-temperature state.

[0021] Optionally, the inner supporting cylinder is arranged in the middle of the filter paper, and the filter paper is sleeved outside the inner supporting cylinder.

[0022] By adopting the technical scheme, the inner supporting cylinder is arranged in the middle of the filter paper, the inner supporting cylinder supports the filter paper to keep the cylindrical structure, and the filter paper can keep the structure stable in the shell and continue the oil filtering work when the automobile bounces during driving.

[0023] In summary, the beneficial technical effects of the application are as follows:

[0024] 1. The filter paper is arranged in the shell, the fuel can enter the shell through the oil inlet hole and flow out from the oil outlet hole, the fuel flows in the shell through the filter paper, the filter paper filters out the solid impurities in the fuel, the conductive strip is arranged in the shell, the conductive mechanism is connected with the conductive strip, thereby the static electricity generated when the fuel flows can be led out through the conductive strip, and the probability of the static electricity accumulating in the shell and generating electric arc is reduced, thereby reducing the damage of the static electricity to the filter paper in the oil filter;

[0025] 2. The oil outlet hole is formed in the sleeve, when the fuel enters the shell from the oil inlet hole, the fuel is located outside the filter paper, and the fuel needs to pass through the filter paper and enter the cylinder formed by the filter paper during the process of flowing out from the oil outlet hole, thereby the solid impurities in the fuel can be filtered outside the filter screen.

[0026] 3. The heating mechanism is arranged between the upper conductive plate and the lower conductive plate, the positive and negative poles of the heating mechanism are electrically connected with the upper conductive plate and the lower conductive plate respectively, the automobile power supply can supply power to the heating mechanism through the conductive mechanism, and the heating mechanism can convert the electric energy into heat energy to heat the fuel in the shell, thereby reducing the probability of the flowability of the fuel in the shell decreasing in the low-temperature state. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of an embodiment of the application.

[0028] Figure 2 is a schematic diagram of the cross section of an embodiment of the application.

[0029] Figure 3 is a schematic diagram of the structure of the filter paper and the connecting plate of an embodiment of the application.

[0030] Figure 4 is a schematic diagram of the structure of the inner support cylinder of an embodiment of the application.

[0031] Figure 5 is a schematic diagram of the mounting structure of the conductive mechanism of an embodiment of the application.

[0032] Figure 6 is a schematic diagram of the structure of the elastic member of an embodiment of the application.

[0033] Figure 7 is a schematic diagram of the structure of the upper conductive plate of an embodiment of the application.

[0034] Figure 8 is a schematic diagram of the position of the heating mechanism of an embodiment of the application.

[0035] Reference signs: 1, housing; 11, upper end cover; 111, oil inlet hole; 12, outer sleeve; 121, oil outlet hole; 13, insulating cover plate; 131, clearance hole; 2, filter paper; 21, connecting plate; 3, conductive strip; 4, inner support cylinder; 5, conductive mechanism; 51, elastic member; 52, end head; 53, upper conductive plate; 531, oil leakage hole; 532, mounting hole; 54, lower conductive plate; 6, heating mechanism. DETAILED DESCRIPTION

[0036] The application will be further described in detail below with reference to the accompanying drawings.

[0037] An oil filter for preventing static electricity from being generated is disclosed in an embodiment of the application, with reference to Figure 1 , Figure 2 and Figure 3 , comprising a housing 1, a filter paper 2, a conductive strip 3 and an inner support cylinder 4. The housing 1 is in a cylindrical structure and is made of insulating material. The filter paper 2 is installed in the housing 1. The housing 1 is provided with an oil inlet hole 111 and an oil outlet hole 121. Fuel oil enters the housing 1 through the oil inlet hole 111 and passes through the filter paper 2. The filter paper 2 filters out solid impurities in the fuel oil. The fuel oil flows out of the oil outlet hole 121. The conductive strip 3 is installed in the housing 1 and abuts against the filter paper 2.

[0038] With reference to Figure 3 and Figure 4The inner supporting cylinder 4 is arranged in the outer shell 1, the filter paper 2 is in a cylindrical structure, and the filter paper 2 is sleeved outside the inner supporting cylinder 4. The outer shell 1 is provided with a conductive mechanism 5, the conductive mechanism 5 abuts against and is electrically connected with the conductive strip 3. When the fuel flows in the outer shell 1, the fuel and the filter paper 2 rub against each other, so that static electricity is generated. The static electricity can be led out through the conductive strip 3 and the conductive mechanism 5, so that the effect of eliminating static electricity is achieved, the probability that the static electricity accumulates in the outer shell 1 and generates an electric arc to break the filter paper 2 is reduced, the filter paper 2 keeps the surface intact and continuously performs the fuel filtering work.

[0039] With reference to Figure 3 and Figure 4 , the filter paper 2 is fixed with a connecting plate 21 at both ends, the connecting plate 21 is in a circular plate structure, and the filter paper 2 is bonded with the connecting plate 21. The conductive strip 3 is a metal strip, and the conductive strip 3 is fixed on the two connecting plates 21 at both ends, and the conductive strip 3 abuts against the filter paper 2. The outer shell 1 includes an upper end cover 11 and an outer sleeve 12, the upper end cover 11 is clamped with one connecting plate 21, and the outer sleeve 12 is sleeved outside the filter paper 2 and is clamped with the other connecting plate 21. An oil inlet hole 111 is arranged on the upper end cover 11, and an oil outlet hole 121 is arranged on the outer sleeve 12. The conductive mechanism 5 is installed on the upper end cover 11, and the conductive strip 3 penetrates through the connecting plate 21 and extends out, so that the conductive mechanism 5 can abut against the conductive strip 3. In other embodiments, the connecting plate 21 can be made of a conductor material, and the conductive mechanism 5 can abut against the connecting plate 21 to transmit the static electricity on the conductive strip 3.

[0040] With reference to Figure 5 , Figure 6 and Figure 7The conductive mechanism 5 includes an elastic member 51, two end heads 52, an upper conductive plate 53 and a lower conductive plate 54. The upper conductive plate 53 and the lower conductive plate 54 are both circular plate structures. The upper conductive plate 53 and the lower conductive plate 54 are coaxially connected to the upper end cover 11. The upper conductive plate 53 is arranged close to the end face of the upper end cover 11, and the lower conductive plate 54 is located on the side of the upper conductive plate 53 away from the upper end cover 11. The elastic member 51 is fixedly connected to the side of the lower conductive plate 54 away from the upper conductive plate 53. The elastic member 51 is used to electrically connect with the conductive strip 3. The elastic member 51 is elastic. When the upper end cover 11 is connected to the outer sleeve 12, the filter paper 2 and the conductive strip 3 abut against the elastic member 51, so that the elastic member 51 can transmit static electricity. When the elastic member 51 contacts the conductive strip 3, it is forced to contract. The elastic member 51 can always abut against the conductive strip 3, reducing the probability of the elastic member 51 and the conductive strip 3 being disconnected. Both terminals 52 extend through the upper end cap 11 and are sealed therewith. One terminal 52 is electrically connected to the upper conductive plate 53, and the other terminal 52 is electrically connected to the lower conductive plate 54. The upper conductive plate 53 has a mounting hole 532, through which the terminals 52 extend and are connected to the lower conductive plate 54. The upper conductive plate 53 and the lower conductive plate 54 do not contact each other. By connecting the two terminals 52 to a circuit, the user can ground static electricity through the terminals 52, thereby eliminating static electricity on the filter paper 2.

[0041] Reference Figure 5 、 Figure 6 and Figure 7 An oil leakage hole 531 is provided on the upper conductive plate 53. The oil leakage hole 531 penetrates the upper conductive plate 53, and the fuel entering the housing 1 from the oil inlet hole 111 can flow through the oil leakage hole 531. There is a gap between the lower conductive plate 54 and the housing 1. The fuel entering between the upper conductive plate 53 and the lower conductive plate 54 from the oil leakage hole 531 can flow through the gap to the outside of the filter paper 2. During the flow of the fuel, it seeps from the outside of the filter paper 2 into the middle of the filter paper 2. The oil outlet hole 121 is coaxially arranged with the filter paper 2. A through hole is provided at the center of the connecting plate 21 on the lower side of the filter paper 2. The fuel passing through the filter paper 2 can flow out from the through hole of the connecting plate 21, thereby causing the solid impurities in the fuel to accumulate on the outer surface of the filter paper 2.

[0042] Reference Figure 5 and Figure 6 The upper end cover 11 is provided with an insulating cover plate 13. The insulating cover plate 13 is arranged on the side of the lower conductive plate 54 away from the upper conductive plate 53. The insulating cover plate 13 is used to abut the end surface of the filter paper 2. A clearance hole 131 is formed in the insulating cover plate 13. The elastic member 51 extends from the clearance hole 131 and contacts the filter paper 2. The fuel between the lower conductive plate 54 and the insulating cover plate 13 flows through the clearance hole 131. The insulating cover plate 13 serves to protect the conductive mechanism 5, reducing the probability of solid impurities in the fuel adhering to the surface of the conductive mechanism 5, thereby maintaining the conductivity of the conductive mechanism 5.

[0043] Referring to Figure 8 A heating mechanism 6 is arranged between the upper conductive plate 53 and the lower conductive plate 54, the heating mechanism 6 is provided with a heating resistance wire or an electric heater, the heating mechanism 6 is arranged in a cylindrical structure, and the heating mechanism 6 is arranged along the circumference of the upper conductive plate 53 at intervals. The positive and negative poles of the heating mechanism 6 are in contact with the upper conductive plate 53 and the lower conductive plate 54 respectively. When the oil filter shell 1 is fixedly installed in the automobile, the automobile power supply is connected with the two end heads 52, so that the effect of supplying power to the heating mechanism 6 is achieved. The heating mechanism 6 can convert electric energy into heat energy to heat the fuel in the shell 1, so that the fuel maintains good fluidity and the probability of solidification of the fuel in the shell 1 in a low-temperature environment is reduced.

[0044] The implementation principle of the embodiment of the present application is that: the filter paper 2 is arranged in the shell 1, so that the fuel can enter the shell 1 through the oil inlet hole 111 and flow out from the oil outlet hole 121, and the fuel flows through the filter paper 2 in the process, the filter paper 2 filters the solid impurities in the fuel, the conductive strip 3 is arranged between the two connecting plates 21, so that the conductive strip 3 is electrically connected with the conductive mechanism 5, and then the static electricity generated by the friction between the fuel and the filter paper 2 can be transmitted to the power supply circuit through the conductive mechanism 5, so that the effect of eliminating static electricity is achieved.

[0045] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An oil filter for preventing static electricity generation, characterized by: The invention comprises a housing (1), filter paper (2) and a conductive strip (3), wherein the filter paper (2) is arranged in the housing (1), an oil inlet hole (111) and an oil outlet hole (121) are provided on the housing (1), the conductive strip (3) is arranged in the housing (1) and contacts the filter paper (2), and a conductive mechanism (5) is provided on the housing (1), the conductive mechanism (5) is detachably connected to a vehicle power supply, and the conductive mechanism (5) is electrically connected to the conductive strip (3).

2. The oil filter for preventing static electricity generation according to claim 1, characterized in that: The filter paper (2) is a cylindrical structure. Both end surfaces of the filter paper (2) are provided with connecting plates (21). The connecting plates (21) are connected to the housing (1). The connecting plates (21) are bonded and fixed to the filter paper (2).

3. The oil filter for preventing static electricity generation according to claim 2, characterized in that: The housing (1) comprises an upper end cover (11) and an outer sleeve (12), a connecting plate (21) is clamped to the upper end cover (11), and another connecting plate (21) is clamped to the outer sleeve (12).

4. The oil filter for preventing static electricity generation according to claim 3, characterized in that: The oil inlet hole (111) is provided on the upper end cover (11), the oil outlet hole (121) is located at the center of the outer sleeve (12), and a through hole is provided at the center of the connecting plate (21) connected to the outer sleeve (12).

5. The oil filter for preventing static electricity generation according to claim 2, characterized in that: The conductive mechanism (5) comprises an elastic member (51), an end head (52), an upper conductive plate (53) and a lower conductive plate (54), wherein the upper conductive plate (53) is connected to the upper end cover (11), and the lower conductive plate (54) is connected to a side of the upper conductive plate (53) away from the upper end cover (11), the elastic member (51) is connected to the lower conductive plate (54), the elastic member (51) is in contact with the conductive strip (3), the end head (52) passes through the upper end cover (11) and is sealed with the upper end cover (11), one end head (52) is electrically connected to the upper conductive plate (53), and the other end head (52) is electrically connected to the lower conductive plate (54).

6. The oil filter for preventing static electricity generation according to claim 5, characterized in that: An insulating cover plate (13) is provided on the upper end cover (11). The insulating cover plate (13) is provided on a side of the lower conductive plate (54) away from the upper conductive plate (53). A clearance hole (131) is provided on the insulating cover plate (13), and the elastic member (51) extends from the clearance hole (131).

7. The oil filter for preventing static electricity generation according to claim 6, characterized in that: A heating mechanism (6) is provided between the upper conductive plate (53) and the lower conductive plate (54), and the heating mechanism (6) is electrically connected to the upper conductive plate (53) and the lower conductive plate (54), respectively.

8. The oil filter for preventing static electricity generation according to claim 1, characterized in that: An inner support tube (4) is provided in the middle of the filter paper (2), and the filter paper (2) is sleeved outside the inner support tube (4).