Dust removal device and air filter

Abstract

The present invention discloses a dust removal device and an air filter, and relates to the technical field of air filters. The dust removal device includes a shell and a valve body, and the shell is provided with an inlet end and an outlet end, and the inlet end and the outlet end are arranged oppositely; the valve body is arranged in the shell, and the valve body includes a first sealing part and a second sealing part, and the valve body can move in the shell, and the first sealing part can cooperate with the shell to form a first sealing surface, so that a dust storage cavity is formed between the inlet end and the first sealing surface; the second sealing part can cooperate with the shell to form a second sealing surface, so that a dust removal cavity is formed between the second sealing surface and the outlet end. The dust removal device provided by the present invention can realize automatic dust storage and dust removal, has a simple structure, and the size of the shell can be controlled in a small space, which is conducive to the layout of the whole vehicle and has low cost.

Description

Technical Field

[0001] The present invention relates to the technical field of air filters, and in particular to a dust removal device and an air filter. Background Art

[0002] The main function of the air intake system is to filter the air entering the engine, remove impurities such as dust and moisture in the air, and protect the long-term stable operation of the engine; and the air filter is a core component in the intake system. In order to better extend the service life of the air filter, most air filters will be equipped with pre-filtering devices inside, such as swirl vanes, tangential intake structures, etc., and by setting a dust exhaust valve or an external exhaust gas ejection device at the dust exhaust port of the air filter, the dust separated by the pre-filtering device can be discharged from the air filter.

[0003] However, there are some shortcomings in both the dust exhaust valve and the external exhaust gas ejection device: first, the dust exhaust valve is generally made of rubber. Since the dust exhaust valve is opened and closed by the pressure difference between the internal pressure of the air filter and the atmospheric pressure, and the internal pressure of the air filter is directly affected by the engine running load, the dust exhaust efficiency of the dust exhaust valve is not stable; secondly, since the rubber material will age after long-term use, its plastic deformation ability and elasticity will decay, resulting in a decrease in the sealing performance of the dust exhaust valve, thereby causing its dust exhaust function to fail. In addition, after long-term use, a lot of dust and impurities will accumulate in the dust exhaust valve, which is prone to dust clogging and needs to be manually removed. The exhaust gas ejection device uses the internal pressure of the exhaust pipe of the whole vehicle to guide the dust accumulated at the dust outlet of the air filter to the exhaust pipe and discharge it together with the vehicle exhaust. Since it needs to set a long connecting pipeline and a one-way valve between the air filter and the exhaust pipe of the whole vehicle, and a special "Venturi tube" structure needs to be designed inside the exhaust pipe, the structure of the device is complex, which is not conducive to the layout of the whole vehicle, and its cost is very high. In addition, the application scope of the exhaust gas ejection device is also limited due to the stringent requirements of emission regulations on the content of solid particulate matter in exhaust gas. Summary of the invention

[0004] An object of the present invention is to provide a dust removal device to solve the deficiencies in the prior art. The dust removal device has a simple structure, is convenient for vehicle layout, and has low cost.

[0005] Another object of the present invention is to provide an air filter which can automatically store and discharge dust and has high working efficiency.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A dust removal device, comprising:

[0008] A shell body, wherein an inlet end and an outlet end are arranged on the shell body, and the inlet end and the outlet end are arranged opposite to each other;

[0009] A valve body, wherein the valve body is arranged in the shell, the valve body includes a first sealing portion and a second sealing portion, the valve body can move in the shell, the first sealing portion can cooperate with the shell to form a first sealing surface, so that a dust storage chamber is formed between the inlet end and the first sealing surface; the second sealing portion can cooperate with the shell to form a second sealing surface, so that a dust exhaust chamber is formed between the second sealing surface and the outlet end.

[0010] Optionally, a driving assembly is further included, wherein the driving assembly is fixedly connected to the valve body to drive the valve body to move.

[0011] Optionally, the driving component is an electromagnet, which includes a coil winding and an iron core. The iron core is fixedly connected to the valve body. When the coil winding is energized and attracted to the iron core, the valve body moves upward to form the dust exhaust chamber; when the coil winding is de-energized and separated from the iron core, the valve body moves downward to form the dust storage chamber.

[0012] Optionally, the electromagnet further includes a spring, a baffle is provided on the iron core, and the spring is provided between the coil winding and the baffle.

[0013] Optionally, the first sealing portion and the second sealing portion are both inclined surfaces, and the inclined surfaces extend downward from the center of the valve body.

[0014] Optionally, a first sealing groove is provided on the valve body, a first sealing member is provided in the first sealing groove, and the first sealing member abuts against the housing to form the first sealing surface.

[0015] Optionally, a second sealing groove is provided on the housing, a second sealing member is provided in the second sealing groove, and the second sealing portion abuts against the second sealing member to form the second sealing surface.

[0016] Optionally, the shell is further provided with an air inlet, and the air inlet is used to receive compressed air; or to blow air into the dust exhaust chamber through the air inlet.

[0017] Optionally, a solenoid valve is further included, and the solenoid valve is connected to the air inlet.

[0018] An air filter comprises the dust removal device described in any one of the above items.

[0019] Beneficial effects of the present invention:

[0020] The dust removal device provided by the present invention is provided with a valve body in a housing, the valve body can move in the housing, the first sealing part can cooperate with the housing to form a first sealing surface, so that a dust storage cavity is formed between the inlet end and the first sealing surface; the second sealing part can cooperate with the housing to form a second sealing surface, so that a dust removal cavity is formed between the second sealing surface and the outlet end. The dust removal device provided by the present invention can realize automatic dust storage and dust removal, has a simple structure, and the size of the housing can be controlled in a small space, which is conducive to the layout of the whole vehicle and has low cost.

[0021] The dust removal device provided by the present invention has an air inlet arranged on the shell, and compressed air is introduced through the air inlet. Under the action of the compressed air, dust or impurities in the dust removal chamber are quickly discharged from the outlet end, thereby improving the dust or impurity discharge efficiency.

[0022] The air filter provided by the present invention uses the above-mentioned dust exhaust device to automatically store and exhaust dust, thereby improving work efficiency and extending service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a dust storage chamber formed by cooperation between a first sealing portion and a shell of a dust removal device provided by an embodiment of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the dust exhaust chamber formed by the cooperation between the second sealing part and the shell of the dust exhaust device provided by an embodiment of the present invention.

[0025] Markings in the figure:

[0026] 1. Shell; 2. Valve body; 3. Electromagnet; 4. Solenoid valve; 5. First sealing member; 6. Second sealing member; 7. Controller; 8. Plastic cover;

[0027] 11. inlet end; 12. outlet end; 13. air inlet; 14. second sealing groove; 21. first sealing portion; 22. second sealing portion; 23. first sealing groove; 31. coil winding; 32. iron core; 33. spring;

[0028] 321. Baffle. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0031] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0034] like Figure 1 and Figure 2 As shown, this embodiment provides a dust removal device, which includes a shell 1 and a valve body 2. The shell 1 is provided with an inlet end 11 and an outlet end 12, and the inlet end 11 and the outlet end 12 are arranged opposite to each other; the valve body 2 is arranged in the shell 1, and the valve body 2 includes a first sealing portion 21 and a second sealing portion 22. The valve body 2 can move in the shell 1, and the first sealing portion 21 can cooperate with the shell 1 to form a first sealing surface, so that a dust storage cavity is formed between the inlet end 11 and the first sealing surface; the second sealing portion 22 can cooperate with the shell 1 to form a second sealing surface, so that a dust removal cavity is formed between the second sealing surface and the outlet end 12.

[0035] The dust removal device provided in this embodiment is provided with a valve body 2 in the housing 1, the valve body 2 can move in the housing 1, the first sealing portion 21 can cooperate with the housing 1 to form a first sealing surface, so that a dust storage cavity is formed between the inlet end 11 and the first sealing surface; the second sealing portion 22 can cooperate with the housing 1 to form a second sealing surface, so that a dust removal cavity is formed between the second sealing surface and the outlet end 12. The dust removal device provided by the present invention can realize automatic dust storage and dust removal, has a simple structure, and the size of the housing 1 can be controlled in a small space, which is conducive to the layout of the whole vehicle and has low cost.

[0036] In this embodiment, the housing 1 is an integrated structure. Of course, in other embodiments, the housing 1 can also be set as a split structure, and the joints of the split structures need to be sealed, which can be sealed by a seal, screwed or snapped; or welded or other methods can be used for sealing and fixing. The top of the outlet 12 is set as an inclined surface with a certain angle to facilitate the discharge of dust or impurities.

[0037] Optionally, a driving component is also included, and the driving component is fixedly connected to the valve body 2 to drive the valve body 2 to move. Specifically, the driving component is an electromagnet 3, and the electromagnet 3 includes a coil winding 31 and an iron core 32. The iron core 32 is fixedly connected to the valve body 2. When the coil winding 31 is energized and attracted to the iron core 32, the valve body 2 moves upward to form a dust exhaust chamber; when the coil winding 31 is de-energized and separated from the iron core 32, the valve body 2 moves downward to form a dust storage chamber. In this embodiment, a connecting column is provided at one end of the valve body 2, and a connecting groove is provided at one end of the iron core. The connecting column is inserted into the connecting groove and the two are fixedly connected by connecting bolts. Of course, in other embodiments, the driving component can also be an electric push rod, a cylinder or a hydraulic cylinder.

[0038] Optionally, the electromagnet 3 further includes a spring 33, a baffle 321 is provided on the iron core 32, and the spring 33 is provided between the coil winding 31 and the baffle 321. When the coil winding 31 is powered off, the iron core 32 moves downward under the action of gravity, so that the first sealing portion 21 abuts against the housing 1, and the elastic restoring force of the spring 33 makes the first sealing portion 21 abut against the housing 1 more tightly, thereby making the sealing performance of the first sealing surface better.

[0039] Preferably, in this embodiment, a plastic cover 8 is provided at one end of the electromagnet 3 close to the inlet end 11 , and the plastic cover is configured to be conical to prevent dust entering the housing 1 from gathering at the upper end of the electromagnet 3 .

[0040] In this embodiment, the dust removal device further includes a controller 7, which is disposed in the housing 1. A setting program is stored in the controller 7. The electromagnet 3 is electrically connected to the controller 7 to control the up and down movement of the valve body 2. The controller 7 is provided with a plurality of gears, and the plurality of gears are provided with different working frequencies. The gears of the dust removal device can be manually adjusted to adapt to different working conditions.

[0041] Optionally, the first sealing portion 21 and the second sealing portion 22 are both inclined surfaces, and the inclined surfaces extend downward from the center of the valve body 2. The downward inclined surface is set to facilitate the dust or impurities accumulated on the first sealing portion 21 and the second sealing portion 22 to slide downward. In this embodiment, the inclination angle of the inclined surface is not limited, and it only needs to be able to cooperate with the structure of the housing 1 to form the first sealing surface and the second sealing surface. Of course, in other embodiments, the first sealing portion 21 and the second sealing portion 22 can also be set as planes.

[0042] Optionally, a first sealing groove 23 is provided on the valve body 2, a first sealing member 5 is provided in the first sealing groove 23, and the first sealing member 5 abuts against the housing 1 to form a first sealing surface. In this embodiment, the first sealing groove 23 is provided at the lower side of the first sealing portion 21, and the first sealing member 5 is interference fit with the first sealing groove 23. The structure of the housing 1 that cooperates with the first sealing portion 21 is provided as a smooth inclined surface, so as to cooperate with the first sealing member 5 to form a seal. When the valve body 2 moves downward, the first sealing member 5 abuts against the housing 1, so that dust or impurities entering the housing 1 from the inlet end 11 are stored in the cavity between the inlet end 11 and the first sealing surface.

[0043] Optionally, a second sealing groove 14 is provided on the housing 1, a second sealing member 6 is provided in the second sealing groove 14, and the second sealing portion 22 abuts against the second sealing member 6 to form a second sealing surface. In the present embodiment, the second sealing member 6 is fixed in the second sealing groove 14, and can be fixed by means of screws, bonding, etc. It should be noted that dust or impurities entering from the inlet end 11 of the housing 1 fall on the first sealing surface under the action of gravity. In the program set on the control panel, when the accumulated amount of dust is about to reach the second sealing portion 22, the electromagnet 3 is controlled to drive the valve body 2 to move upward to discharge the stored dust through the outlet end 12.

[0044] In this embodiment, the first sealing member 5 and the second sealing member 6 are both rubber sealing rings.

[0045] Preferably, the housing 1 is also provided with an air inlet 13, and the air inlet 13 is used to receive compressed air; or to blow air into the dust exhaust chamber through the air inlet 13. One or more air inlets 13 may be provided. In the present embodiment, the air inlet 13 is provided below the second sealing surface, and when the valve body 2 moves upward and abuts against the second sealing member 6 to form the second sealing surface, compressed air is received to quickly discharge the stored dust or impurities. Of course, in other embodiments, air may also be blown through the air inlet by an external blower to quickly discharge the dust.

[0046] The dust removal device provided in this embodiment is provided with an air inlet 13 on the shell 1, and the air inlet 13 is used to receive compressed air; under the action of compressed air, dust or impurities in the dust removal chamber are quickly discharged from the outlet end 12, thereby improving the discharge efficiency of dust or impurities.

[0047] Optionally, a solenoid valve 4 is further included, and the solenoid valve 4 is connected to the air inlet 13. Specifically, the solenoid valve 4 includes an inlet and an outlet, the inlet is connected to the compressed air delivery pipeline, and the outlet is connected to the air inlet 13. In this embodiment, the compressed air delivery pipeline is connected to the air source of the vehicle, so that the dust removal efficiency is 95% to 100%.

[0048] In this embodiment, the solenoid valve 4 is electrically connected to the control panel, and the control panel controls the opening and closing of the air inlet 13. When the solenoid valve 4 is powered on, the valve of the solenoid valve 4 opens to allow compressed air to enter; when the solenoid valve 4 is powered off, the valve of the solenoid valve 4 closes to block the compressed air from entering.

[0049] The working process of the dust removal device provided in this embodiment is as follows: the coil winding 31 of the electromagnet 3 is powered off, the first sealing portion 21 of the valve body 2 forms a first sealing surface with the shell 1, and dust or impurities enter from the inlet end 11 of the shell 1 and fall on the first sealing surface and accumulate; when dust or impurities accumulate close to the second sealing portion 22, the coil winding 31 of the electromagnet 3 is powered on, driving the valve body 2 to move upward, the second sealing portion 22 forms a second sealing surface with the shell 1, and a gap is formed between the first sealing portion 21 and the shell 1, and the accumulated dust or impurities begin to be discharged from the outlet end 12. At the same time, the solenoid valve 4 is powered on, allowing compressed air to enter the dust removal chamber from the air inlet 13 to quickly discharge the dust or impurities.

[0050] This embodiment provides an air filter, including the above-mentioned dust removal device, which is connected to the air filter through a connecting pipe. The air filter provided by this embodiment uses the above-mentioned dust removal device to automatically store and remove dust, thereby improving work efficiency and extending service life.

[0051] Of course, in other embodiments, the dust removal device provided in this embodiment can also be applied to other filters.

[0052] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A dust removal device, characterized in that: include: A shell (1), wherein the shell (1) is provided with an inlet end (11) and an outlet end (12), and the inlet end (11) and the outlet end (12) are arranged opposite to each other; A valve body (2), the valve body (2) being arranged in the housing (1), the valve body (2) comprising a first sealing portion (21) and a second sealing portion (22), the valve body (2) being movable in the housing (1), the first sealing portion (21) being able to cooperate with the housing (1) to form a first sealing surface, so that a dust storage chamber is formed between the inlet end (11) and the first sealing surface; the second sealing portion (22) being able to cooperate with the housing (1) to form a second sealing surface, so that a dust discharge chamber is formed between the second sealing surface and the outlet end (12); The housing (1) is also provided with an air inlet (13), and the air inlet (13) is used to receive compressed air; or to blow air into the dust exhaust chamber through the air inlet (13); The inlet of the solenoid valve (4) is connected to one end of a compressed air delivery pipeline, the other end of the compressed air delivery pipeline is connected to an air source of the vehicle, and the outlet of the solenoid valve (4) is connected to the air inlet (13).

2. The dust removal device according to claim 1, characterized in that: It also comprises a driving component, which is fixedly connected to the valve body (2) to drive the valve body (2) to move.

3. The dust removal device according to claim 2, characterized in that: The driving component is an electromagnet (3), and the electromagnet (3) comprises a coil winding (31) and an iron core (32). The iron core (32) is fixedly connected to the valve body (2). When the coil winding (31) is energized, it is attracted to the iron core (32), and the valve body (2) moves upward to form the dust exhaust chamber; when the coil winding (31) is de-energized, it is separated from the iron core (32), and the valve body (2) moves downward to form the dust storage chamber.

4. The dust removal device according to claim 3, characterized in that: The electromagnet (3) further comprises a spring (33); a baffle (321) is provided on the iron core (32); and the spring (33) is arranged between the coil winding (31) and the baffle (321).

5. The dust removal device according to claim 1, characterized in that: The first sealing portion (21) and the second sealing portion (22) are both inclined surfaces, and the inclined surfaces extend downward from the center of the valve body (2).

6. The dust removal device according to claim 1, characterized in that: The valve body (2) is provided with a first sealing groove (23), a first sealing member (5) is provided in the first sealing groove (23), and the first sealing member (5) abuts against the housing (1) to form the first sealing surface.

7. The dust removal device according to claim 1, characterized in that: The housing (1) is provided with a second sealing groove (14), a second sealing member (6) is provided in the second sealing groove (14), and the second sealing portion (22) abuts against the second sealing member (6) to form the second sealing surface.

8. An air filter, characterized in that: It comprises the dust exhaust device as described in any one of claims 1 to 7, and the dust exhaust device is connected to the air filter through a connecting pipeline.

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