New energy vehicle fuel filter element with detection function and filter thereof

Abstract

The application relates to the technical field of fuel filters, and discloses a new energy automobile fuel filter element with a detection function and a filter thereof, wherein the filter element comprises a first filter assembly, an upper end ring and a lower end ring arranged at two ends of the first filter assembly respectively, the first filter assembly is in a cylindrical shape and is connected at the head and tail of the side part, an oil inlet is arranged in the middle of the upper end ring, fuel enters the inside of the first filter assembly from the oil inlet and is discharged after being filtered by the first filter assembly, a detection port is arranged in the middle of the lower end ring, and a filter paper detection mechanism for detecting whether the first filter assembly is blocked is further arranged; the filter element and the filter have the detection function, can monitor the blockage condition of the filter paper in the filter, can timely feed back the filter paper use condition to a control center, and are favorable for improving the driving feeling and the driving safety of drivers.

Description

Technical Field

[0001] This invention relates to the field of fuel filter technology, and in particular to a new energy vehicle fuel filter element with detection function and the filter thereof. Background Technology

[0002] As a crucial component of new energy vehicles, fuel filters filter gasoline, preventing particulate matter, water, and other impurities from entering the fuel system. This protects the precision components of the fuel system from wear and other damage, playing a vital role in the safety and lifespan of new energy vehicles.

[0003] Existing fuel filters typically consist of an outer housing and an internal filter element. The internal filter element is the main filtration component, and it needs to be replaced promptly when it becomes clogged to avoid affecting driving experience and safety. Current vehicles usually replace fuel filters based on mileage, such as approximately 20,000 to 30,000 kilometers. However, this replacement rule is not accurate enough. On the one hand, it can easily lead to incomplete use of the filter, resulting in waste; on the other hand, when the filter becomes clogged, the driver cannot immediately recognize and replace it, which is still detrimental to vehicle performance and driver safety. Therefore, the inventor has developed a new invention. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a new energy vehicle fuel filter element and filter with detection function, which features high detection accuracy.

[0005] To achieve the above objectives, the present invention provides a new energy vehicle fuel filter element with detection function, comprising a first filter assembly and an upper ring and a lower ring respectively disposed at both ends of the first filter assembly. The first filter assembly is cylindrical with its ends joined together. An oil inlet is provided in the middle of the upper ring, through which fuel enters the first filter assembly and is filtered before being discharged. A detection port is provided in the middle of the lower ring. The invention also includes a filter paper detection mechanism for detecting whether the first filter assembly is clogged. The filter paper detection mechanism includes a bottom mounting plate, a movable detection plate, a return spring, and a position sensor. A piston is provided on the upper surface of the movable detection plate, which is movably connected to the detection port. The lower surface of the movable detection plate is connected to the bottom mounting plate via the return spring. The position sensor is fixedly disposed on the bottom mounting plate and is used to detect whether the movable detection plate has shifted.

[0006] Preferably, it also includes a second filter assembly, one end of which is connected to the outer periphery of the lower ring and the other end of which is connected to the outer periphery of the movable detection plate. The second filter assembly is foldable.

[0007] Preferably, the second filter component is inverted conical in shape.

[0008] Preferably, a first annular magnet is provided on the side of the detection port facing the movable detection plate, a second annular magnet is installed on the movable detection plate, and a third annular magnet is provided on the side of the bottom mounting plate facing the movable detection plate. The first, second, and third annular magnets are used in combination.

[0009] Preferably, the second annular magnet includes an upper magnet and a lower magnet; the upper surface of the movable detection plate is provided with a first annular groove, and the lower surface is provided with a second annular groove, the upper magnet is installed in the first annular groove, and the lower magnet is installed in the second annular groove.

[0010] Preferably, the bottom mounting plate has an annular limiting part on the outer periphery of the third annular magnet, and the inner wall of the annular limiting part is inclined toward the center line of the bottom mounting plate.

[0011] Preferably, a sealing ring is provided at the connection between the movable detection plate and the piston.

[0012] The present invention also includes a new energy vehicle fuel filter with detection function, comprising the above-mentioned fuel filter element and a filter housing, wherein the upper end of the filter housing is provided with an oil inlet end, and the lower end of the filter housing is provided with a first oil outlet end and a second oil outlet end; the fuel filter element is installed inside the filter housing, the oil inlet end is provided corresponding to the oil inlet end, and the bottom mounting plate is fixedly installed between the first oil outlet end and the second oil outlet end.

[0013] Preferably, the device also includes a mounting bracket, wherein the middle part of the mounting bracket is provided with at least two semi-circular clamps for clamping the filter housing, and both ends of the mounting bracket are provided with quick-release mechanisms and pressing parts.

[0014] Preferably, the quick-release mechanism includes a connecting seat and a quick-release assembly for use, the quick-release assembly being disposed on the mounting bracket.

[0015] Beneficial effects: Compared with the prior art, the present invention is a new energy vehicle fuel filter element and filter with detection function. The filter element and filter of the present invention have detection function, which can monitor the clogging of the filter paper inside the filter and promptly feed back the filter paper usage status to the control center, which is conducive to improving the driving experience and driving safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the filter of the present invention.

[0017] Figure 2 This is a schematic diagram of the filter element structure of the present invention.

[0018] Figure 3 This is a schematic diagram of the longitudinal cross-sectional structure of the filter element of the present invention.

[0019] Figure 4 This is a schematic diagram of the active detection plate structure of the present invention.

[0020] Figure 5 This is a schematic diagram of the bottom mounting plate structure of the present invention.

[0021] Figure 6 This is a schematic diagram of the quick-release component structure of the present invention.

[0022] Figure 7 This is a schematic diagram of the internal structure of the quick-release assembly of the present invention.

[0023] Figure 8 This is a schematic diagram of the reverse drive block structure of the present invention.

[0024] The reference numerals in the figures include:

[0025] First filter assembly--1, upper ring--2, oil inlet--21, lower ring--3, detection port--31, first annular magnet--311, filter paper detection mechanism--4, bottom mounting plate--41, third annular magnet--411, annular protrusion--412, movable detection plate--42, piston part--421, second annular magnet--422, upper magnet--423, lower magnet--424, first annular groove--425, second annular groove--426, sealing ring--427, return spring--43, position sensor--44, second filter assembly--5, filter housing--6, oil inlet--61, first oil outlet--62, second oil outlet--63, second oil outlet--64, second oil outlet--65, second oil outlet--66, second oil outlet--67, second oil outlet--68, second oil outlet--69, second oil outlet--60, second oil outlet--60, second oil outlet--61, second oil outlet--62, second oil outlet--63, second oil outlet--64, second oil outlet--65, second oil outlet--66, second oil outlet--67, second oil outlet--68, second oil outlet--69, second oil outlet--60, second oil outlet--69, second oil outlet--60, second oil outlet--61, second oil outlet--62 ... Oil end--63, mounting bracket--7, semi-circular clamp--71, pressing part--72, circular mounting seat--73, first annular limiting part--731, limiting shaft seat--74, quick release mechanism--8, connecting seat--81, quick release assembly--82, button seat--821, movable connecting shaft--822, pressing spring--823, connecting block--824, fixing block--825, tilting part--826, longitudinal slide groove--827, second annular limiting part--828, reverse drive mechanism--9, reverse drive block--91, tilting column--911, drive part--912, tilting body a--913, tilting body b--914, platform part--915. Detailed Implementation

[0026] The following is in conjunction with the appendix Figures 1 to 8 The present invention will be described in detail.

[0027] This invention relates to a fuel filter element for new energy vehicles with a detection function, comprising a first filter assembly 1 and an upper ring 2 and a lower ring 3 respectively disposed at the upper and lower ends of the first filter assembly 1. The first filter assembly 1 is cylindrical with its ends connected. An oil inlet 21 is provided in the middle of the upper ring 2, through which fuel enters the first filter assembly 1 and is filtered before being discharged. A detection port 31 is provided in the middle of the lower ring 3. The invention also includes a filter paper detection mechanism 4 for detecting whether the first filter assembly 1 is clogged. The filter paper detection mechanism 4 includes a bottom mounting plate 41, a movable detection plate 42, a return spring 43, and a position sensor 44. A piston part 421 is provided on the upper surface of the movable detection plate 42, which is movably connected to the detection port 31. The lower surface of the movable detection plate 42 is connected to the bottom mounting plate 41 through the return spring 43. The position sensor 44 is fixedly disposed on the bottom mounting plate 41 and is used to detect whether the movable detection plate 42 has shifted.

[0028] When the fuel filter is activated, fuel flows into the filter element from the inlet 21 and is filtered by the first filter assembly 1 before being discharged from the filter element. If the filter holes of the first filter assembly 1 are slightly clogged, the fuel discharge rate inside the filter element slows down, the amount of gasoline accumulated inside the first filter assembly 1 increases, and the internal pressure increases. At this time, the movable detection plate 42 at the bottom of the filter element is pushed and slightly displaced when the pressure reaches a certain value. This displacement is sensed by the position sensor 44 and transmitted to the vehicle control center, informing the driver that the fuel filter is clogged and needs to be replaced in time. Tests have shown that in fuel filters of different sizes, if the fuel inlet speed remains constant, a clogging degree of about 35% in the filter holes is enough to push the movable detection plate 42 to move slightly.

[0029] The filter element of this invention has an automatic detection function, which can accurately determine the clogging status of the fuel filter element through the numerical information transmitted by the displacement sensor, so as to facilitate the driver to replace the fuel filter in a timely manner to ensure a high driving experience and driver safety.

[0030] As the blockage of the filter holes gradually worsens, the pressure inside the first filter assembly 1 exceeds the sum of the frictional force between the movable detection plate 42 and the detection port 31, and the supporting force of the return spring 43. At this point, the movable detection plate 42 disengages from the detection port 31. To prevent unfiltered gasoline from flowing into the fuel system, this embodiment also includes a second filter assembly 5. One end of the second filter assembly 5 is connected to the outer periphery of the lower ring 3, and the other end is connected to the outer periphery of the movable detection plate 42. When the movable detection plate 42 is inserted into the detection port 31, the second filter assembly 5 is folded around the detection port 31. As the movable detection plate 42 disengages from the detection port 31, the second filter assembly 5 gradually unfolds to form a complete small second filter element to filter the accumulated fuel, ensuring that the fuel system has sufficient and clean fuel for combustion. This extends the service life of the fuel filter when the driver does not have time to replace the fuel filter element. After the fuel filter stops working, the pressure decreases, the movable detection plate 42 resets under the force of the return spring 43, and the second filter assembly 5 is folded back into place. The foldable second filter component 5 does not take up much space during transportation or use, making it more convenient and flexible to use.

[0031] Preferably, the second filter assembly 5 is in the shape of an inverted cone after unfolding with the movable detection plate 42. The inverted cone shape of the second filter assembly 5 has a larger filtration area, which effectively speeds up the filtration efficiency. At the same time, the cone shape of the second filter assembly 5 will not pile up on top of the movable detection plate 42 after being folded, thus avoiding obstruction of the assembly of the movable detection plate 42.

[0032] To further improve the technical solution, a first annular magnet 311 is provided on the side of the detection port 31 facing the movable detection plate 42, a second annular magnet 422 is installed on the movable detection plate 42, and a third annular magnet 411 is provided on the side of the bottom mounting plate 41 facing the movable detection plate 42. The first annular magnet 311, the second annular magnet 422, and the third annular magnet 411 work together. When the movable detection plate 42 is still connected to the detection port 31, the first annular magnet 311 and the second annular magnet 422 attract each other and cooperate with the return spring 43 to ensure that the movable detection plate 42 is not easily pushed out by the pressure of the fuel. When the first filter assembly 1 is severely clogged and the movable detection plate 42 is pushed out of the detection port 31, the second annular magnet 422 breaks away from the attraction force of the first annular magnet 311 and approaches the third annular magnet 411. Since the magnetic force is inversely proportional to the square of the distance, the movable detection plate 42 is quickly attracted by the third annular magnet 411, and the second filter assembly 5 instantly unfolds. The magnetic force also ensures that the movable detection plate 42 can be stably attracted to the bottom mounting plate 41. In addition, the fuel flowing out of the detection port 31 can also attract iron filings and other impurities remaining in the fuel with the magnetic force of the first annular magnet 311 and the second annular magnet 422.

[0033] In this technical solution, the second annular magnet 422 includes an upper magnet 423 and a lower magnet 424; the upper surface of the movable detection plate 42 is provided with a first annular groove 425, and the lower surface is provided with a second annular groove 426. The upper magnet 423 is installed in the first annular groove 425, and the lower magnet 424 is installed in the second annular groove 426. The two magnets are used in conjunction with the first annular magnet 311 and the second annular magnet 422 respectively, and the two magnets do not interfere with each other.

[0034] Preferably, the bottom mounting plate 41 has an annular protrusion 412 on the outer periphery of the third annular magnet 411, and the inner wall of the annular protrusion 412 is inclined towards the center line of the bottom mounting plate 41. When the movable detection plate 42 is pushed out of the detection port 31 by fuel pressure, the force is very large. Even with the support of the bottom return spring 43 and the magnetic attraction between the annular magnets, it is difficult to ensure that the movable detection plate 42 can move smoothly to the bottom mounting plate 41 without deviation. At this time, the guiding effect of the annular limiting part can be used to smoothly guide the movable detection plate 42 to the bottom mounting plate 41.

[0035] Preferably, a sealing ring 427 is provided at the connection between the movable detection plate 42 and the piston part 421. The sealing ring 427 helps to seal the detection port 31, so that even if the movable detection plate 42 is slightly displaced, fuel will not flow out of the detection port 31.

[0036] This invention also includes a fuel filter for new energy vehicles with a detection function, comprising the aforementioned fuel filter element and a filter housing 6. The upper end of the filter housing 6 has an oil inlet 61, and the lower end of the filter housing 6 has a first oil outlet 62 and a second oil outlet 63. The fuel filter element is installed inside the filter housing 6, with the oil inlet 21 corresponding to the oil inlet 61. The bottom mounting plate 41 is fixedly installed between the first oil outlet 62 and the second oil outlet 63. Filtered fuel flows out of the filter from the first oil outlet 62 and the second oil outlet 63. The filter of this invention possesses the filter paper detection function and advantages of the aforementioned fuel filter element, and also has two oil outlets, facilitating the rapid flow of filtered fuel out of the filter, thus broadening the filter's applicability and increasing its practicality.

[0037] As an embodiment, the filter of the present invention further includes a mounting bracket 7, which facilitates the installation of the fuel filter on a vehicle chassis or other location. The mounting bracket 7 has at least two semi-circular clips 71 in the middle, and quick-release mechanisms 8 and pressing parts 72 are provided at both ends of the mounting bracket 7. The quick-release mechanism 8 includes a connecting seat 81 and a quick-release component 82 that work together, and the quick-release component 82 is disposed on the mounting bracket 7.

[0038] In use, the connecting seat 81 is first fixed to the car chassis. Then, the filter housing 6 is clamped with the semi-circular clamp 71. Next, the connecting blocks 824 at both ends of the mounting bracket 7 are aligned with the connecting seat 81 and pressed into the connecting seat 81 to fix the fuel filter to the car. Then, the oil inlet end 61 and oil outlet end of the filter are connected to the corresponding oil supply pipes to complete the overall installation of the fuel filter.

[0039] Preferably, the quick-release assembly 82 includes a button base 821, a movable connecting shaft 822, and a reverse drive mechanism 9. A circular mounting base 73 extends from the end of the mounting bracket 7 away from the connecting base 81, and a limiting shaft 74 is fixedly installed inside the circular mounting base 73. The limiting shaft 74 penetrates the mounting bracket 7. The button base 821 and the movable connecting shaft 822 are movably mounted on the circular mounting base 73 and the limiting shaft 74, respectively. A pressing spring 823 is provided between the button base 821 and the movable connecting shaft 822. The movable connecting shaft 822 extends out of the limiting shaft 74 and has a connecting block 824 at its end that matches the connecting base 81. When the button base 821 is pressed, the reverse drive mechanism 9 drives the movable connecting shaft 822 to move relative to the button base 821.

[0040] Furthermore, the reverse drive mechanism 9 includes a reverse drive block 91 and a set of fixing blocks 825 symmetrically arranged on the inner wall of the button seat 821. Each fixing block 825 has an inclined portion 826 in the same direction. The movable connecting shaft 822 and the limiting seat both have longitudinal grooves 827 in their middle portions. The reverse drive block 91 passes through two longitudinal grooves 827 and its left and right ends are movably connected to the inclined portions 826 of the fixing blocks 825. Figure 6 As shown, the drive block can move laterally under the action of the fixed block 825 and drive the movable connecting shaft 822 to move up and down.

[0041] In this embodiment, the reverse drive block 91 includes an inclined column 911 in the middle and drive portions 912 connected to both ends of the inclined column 911. The inclined direction of the inclined column 911 is opposite to the inclined direction of the inclined portion 826 of the fixed block 825. Simultaneously, the drive portion 912 is movably connected to the inclined portion 826. Both the upper and lower ends of the drive portion 912 are provided with platform portions 915 that can translate along a longitudinal slide groove 827. The platform portions 915 are slidably connected to the upper and lower ends of the longitudinal slide groove 827. To prevent the drive portion 912 from detaching from the inclined portion 826, a sliding rail can be provided at the edge of the drive portion 912 to slidably connect with the inclined portion 826.

[0042] The working principle of the quick-release mechanism 8 is as follows: When the fuel filter needs to be removed, press down on the button seat 821. The downward pressing force is greater than the supporting force of the return spring 43, forcing the button seat 821 to move downward. At this time, the symmetrical fixing blocks 825 on the inner wall of the button seat 821 move down at the same time. The fixing block 825 on one side squeezes the reverse drive block 91, causing the reverse drive block 91 to move laterally inside the longitudinal slide groove 827. During the translation of the reverse drive block 91, the movable connecting shaft 822 is gradually lifted by the inclined column 911 in the middle of the reverse drive block 91. That is, when the button seat 821 is pressed down, the movable connecting shaft 822 retracts and the end connecting block 824 disengages from the connecting seat 81. The two ends of the mounting bracket 7 disengage from the corresponding connecting seats 81, and the mounting bracket 7 is quickly removed from the car chassis. When the button seat 821 is released, the movable connecting shaft 822 resets. The reverse drive block 91 always moves laterally between the two fixing blocks 825.

[0043] This invention uses a mounting bracket 7 to assist in the installation of the filter. At the same time, quick-release mechanisms 8 are set at both ends of the mounting bracket 7, which can remove the filter by pressing a button. The filter no longer needs to be fixed by screws with a fixing ring. The efficiency of installation and assembly is greatly improved. This means that the replacement personnel no longer need to lie on the ground for a long time and use various tools to replace the filter. Even the driver can remove it by himself, which can significantly reduce maintenance costs.

[0044] To facilitate the installation of the reverse drive block 91, the inclined column 911 is composed of inclined body a913 and inclined body b914, and the middle parts of inclined body a913 and inclined body b914 are fixedly connected by a pin.

[0045] To prevent the button base 821 from detaching from the circular mounting base 73 due to excessive force or spring rebound, a first annular limiting part 731 is provided on the top of the circular mounting base 73, and a second annular limiting part 828 is provided on the outer wall of the button base 821 to cooperate with the first annular limiting part 731. When the button base 821 is reset, the first annular limiting part 731 promptly abuts against the second annular limiting part 828 to limit the position of the button base 821 and prevent the button base 821 from being removed from the outside. This simple structure improves the overall stability of the quick-release mechanism 8.

[0046] The above description is only a preferred embodiment of the present invention. For those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of the present invention. The content of this specification should not be construed as a limitation of the present invention.

Claims

1. A fuel filter element for new energy vehicles with detection function, comprising a first filter assembly (1) and an upper ring (2) and a lower ring (3) respectively disposed at both ends of the first filter assembly (1), characterized in that: The first filter assembly (1) is arranged in a cylindrical shape with its ends connected. The upper ring (2) has an oil inlet (21) in the middle. The fuel enters the first filter assembly (1) from the oil inlet (21) and is discharged after being filtered by the first filter assembly (1). The lower ring (3) has a detection port (31) in the middle and also includes a filter paper detection mechanism (4) for detecting whether the first filter assembly (1) is clogged. The filter paper detection mechanism (4) includes a bottom mounting plate (41), a movable detection plate (42), a reset spring (43), and a position sensor (44). The upper surface of the movable detection plate (42) is provided with a piston part (421), which is movably connected to the detection port (31). The lower surface of the movable detection plate (42) is connected to the bottom mounting plate (41) through the reset spring (43). The position sensor (44) is fixedly installed on the bottom mounting plate (41) and is used to detect whether the movable detection plate (42) is displaced. It also includes a second filter assembly (5), one end of which is connected to the outer periphery of the lower ring (3) and the other end is connected to the outer periphery of the movable detection plate (42). The second filter assembly (5) is foldable. A first annular magnet (311) is provided on the side of the detection port (31) facing the movable detection plate (42), a second annular magnet (422) is installed on the movable detection plate (42), and a third annular magnet (411) is provided on the side of the bottom mounting plate (41) facing the movable detection plate (42). The first annular magnet (311), the second annular magnet (422) and the third annular magnet (411) are used in conjunction. The second annular magnet (422) includes an upper magnet (423) and a lower magnet (424); the upper surface of the movable detection plate (42) is provided with a first annular groove (425), and the lower surface is provided with a second annular groove (426). The upper magnet (423) is installed in the first annular groove (425), and the lower magnet (424) is installed in the second annular groove (426). The bottom mounting plate (41) is provided with an annular protrusion (412) on the outer periphery of the third annular magnet (411), and the inner wall of the annular protrusion (412) is inclined toward the center line of the bottom mounting plate (41).

2. The new energy vehicle fuel filter element with detection function according to claim 1, characterized in that: The second filter component (5) is inverted cone shape.

3. A new energy vehicle fuel filter element with detection function according to claim 1, characterized in that: A sealing ring (427) is provided at the connection between the active detection plate (42) and the piston part (421).

4. A fuel filter for new energy vehicles with detection function, characterized in that: The fuel filter element according to any one of claims 1 to 3 further includes a filter housing (6), wherein the upper end of the filter housing (6) is provided with an oil inlet (61), and the lower end of the filter housing (6) is provided with a first oil outlet (62) and a second oil outlet (63); the fuel filter element is installed inside the filter housing (6), the oil inlet (21) is provided corresponding to the oil inlet (61), and the bottom mounting plate (41) is fixedly installed between the first oil outlet (62) and the second oil outlet (63).

5. A new energy vehicle fuel filter with detection function according to claim 4, characterized in that: It also includes a mounting bracket (7), which has at least two semi-circular clips (71) in the middle for clamping the filter housing (6), and quick-release mechanisms (8) and pressing parts (72) at both ends of the mounting bracket (7).

6. A new energy vehicle fuel filter with detection function according to claim 5, characterized in that: The quick-release mechanism (8) includes a connecting seat (81) and a quick-release component (82) used in conjunction, the quick-release component (82) being disposed on the mounting bracket (7).

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