CN214861504U - Filter assembly and urea filter - Google Patents
Filter assembly and urea filter Download PDFInfo
- Publication number
- CN214861504U CN214861504U CN202023298932.9U CN202023298932U CN214861504U CN 214861504 U CN214861504 U CN 214861504U CN 202023298932 U CN202023298932 U CN 202023298932U CN 214861504 U CN214861504 U CN 214861504U
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- Prior art keywords
- filter
- housing
- end cap
- filter assembly
- shell
- Prior art date
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 239000004202 carbamide Substances 0.000 title claims abstract description 19
- 239000012530 fluid Substances 0.000 claims abstract description 19
- 238000001746 injection moulding Methods 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 15
- 239000000243 solution Substances 0.000 abstract description 8
- 238000003466 welding Methods 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- 241001272720 Medialuna californiensis Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Exhaust Gas After Treatment (AREA)
Abstract
The utility model relates to a filtering component and a urea filter, at least one of a first shell and a second shell is combined with a filter sheet into a whole in an injection molding mode, and the manufacturing process is simple; meanwhile, the filter sheet and at least one of the first shell and the second shell are subjected to injection molding, and under the condition that processes such as adhesive and welding are not needed, the filter sheet is firmly fixed with the first shell and the second shell without support of other elements and is filled in the hollow part without displacement. The fluid to be filtered, such as urea solution, can leave from this filter plate after flowing into the filter chamber, and can not receive the stopping of other components, therefore compare the filter plate that is supported by other components among the prior art, the utility model discloses a filter assembly obviously provides filtration efficiency, has reduced filtration resistance.
Description
Technical Field
The utility model relates to a filter technical field especially relates to filtering component and urea filter.
Background
The tail gas of motor vehicles, one of the main sources of air pollution, contains a large amount of harmful and toxic substances, and the direct emission of the tail gas not only harms human health, but also has a profound influence on the environment of human life. Therefore, it is necessary to filter the exhaust gas of the motor vehicle by adopting the necessary technology so as to reduce the emission of harmful and toxic substances. As a technology commonly used in the automotive industry, Selective Catalytic Reduction (SCR) technology generally uses automotive urea to reduce harmful nitrogen oxides in exhaust gas into nitrogen and water, thereby achieving the purpose of energy saving and environmental protection. When the purity of the selected vehicle urea solution is not enough and impurities such as particles and heavy metal ions exist, parts such as a nozzle and a filter of a vehicle SCR system can be seriously damaged, and unnecessary economic loss is brought. Thus, the vehicle urea needs to be filtered.
However, the design scheme adopted by the vehicle urea filter in the prior art is that the urea solution to be filtered is small in filtering area, low in filtering efficiency and large in flow resistance, and particularly, when the flow of exhaust gas is large, the filtered urea solution cannot meet the requirement of a vehicle SCR system, so that the exhaust gas filtering effect is poor, and adverse effects are caused on human bodies and the environment.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide a filter assembly and a urea filter to solve at least part of the above problems.
In one aspect of the present invention, there is provided a filter assembly, which includes a housing, the housing is sealed and engaged by a first housing and a second housing to define a filter cavity, the housing is provided with at least one through hole communicating with the filter cavity, at least one of the first housing and the second housing has at least one hollow portion, the hollow portion is closed by a filter sheet, fluid in the filter cavity can pass through the filter sheet and communicate with an external space of the filter cavity, at least one of the first housing and the second housing is integrated with the filter sheet by injection molding.
In one embodiment, each of the first housing and the second housing has a plurality of the hollow portions, and each of the hollow portions is enclosed by the filter sheet.
In one embodiment, the first shell and/or the second shell are provided with a plurality of hollowed-out portions, and adjacent hollowed-out portions are separated by a plate rib.
In one embodiment, the first housing includes a first end cap and a side wall extending outward from an edge of the first end cap, and the first end cap has the at least one hollow portion disposed thereon; the second shell comprises a second end cover, the second end cover is suitable for being buckled at the opening of the side wall, and the second end cover is provided with the at least one hollow-out part.
In one embodiment, the first housing further comprises an engaging lug projecting from the peripheral wall of the side wall.
In one embodiment, the second end cap is welded to the sidewall.
In one embodiment, the through hole is a fluid inflow hole and is provided on one of the first and second end caps.
In one embodiment, the other of the first and second end caps is provided with a baffle corresponding to a position of the fluid inflow hole.
In one embodiment, the filter sheet is a filter paper or a filter membrane.
In another aspect of the present invention, a urea filter is provided, the urea filter includes a filter assembly, the filter assembly includes a housing, the housing is sealed and jointed by a first housing and a second housing to define a filter cavity, the housing is provided with at least one through hole communicated with the fluid of the filter cavity, at least one of the first housing and the second housing has at least one hollow portion, the hollow portion is sealed by a filter sheet, the fluid in the filter cavity can pass through the filter sheet and the fluid of the external space of the filter cavity, at least one of the first housing and the second housing is integrated with the filter sheet through injection molding.
At least one of the first shell and the second shell is combined with the filter sheet into a whole in an injection molding mode, so that the manufacturing process is simple; meanwhile, the filter sheet and at least one of the first shell and the second shell are subjected to injection molding, and under the condition that processes such as adhesive and welding are not needed, the filter sheet is firmly fixed with the first shell and the second shell without support of other elements and is filled in the hollow part without displacement. The fluid to be filtered, such as urea solution, can leave from this filter plate after flowing into the filter chamber, and can not receive the stopping of other components, therefore compare the filter plate that is supported by other components among the prior art, the utility model discloses a filter assembly obviously provides filtration efficiency, has reduced filtration resistance.
Drawings
FIG. 1 is a schematic view of a filter assembly in one embodiment of the present invention;
fig. 2 is a schematic view of a filter assembly in an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the present invention, "first" and "second" do not represent specific quantities or sequences, but are merely used for distinguishing names.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims
The utility model provides a filtering component. As shown in fig. 1 and 2, the filter assembly includes a first housing 1, a second housing 2, and at least one through-hole 3. The first and second housings 1, 2 may be sealingly engaged in various ways to define a filter chamber with which the through-hole 3 is in fluid communication. For example, the first housing 1 and the second housing 2 may be sealingly joined by snapping, screwing, welding, or the like. As shown in fig. 1 and 2, the first housing 1 and the second housing 2 are joined by snap-sealing. The first casing 1 and the second casing 2 may have various shapes, and may have a disk shape, for example. The first and second housings 1, 2 may be half-moon shaped as shown in fig. 1, 2.
The first and second housings 1 and 2 include first and second end caps 11 and 13, respectively. At least one of the first end cap 11 and the second end cap 13 is provided with at least one hollow portion 15, and as shown in the figure, the first end cap 11 and the second end cap 13 are both provided with the hollow portion 15. The number of the hollowed-out portions 15 may be one or more, for example, as shown in the figure, each of the first end cap 11 and the second end cap 13 has 5 hollowed-out portions 15. The shape and size of each of the hollowed-out portions 15 may be the same or different.
As shown in fig. 1 and 2, the hollow-out portion 15 is closed by a filter sheet 17, and the filter sheet 17 may be filter paper or a filter membrane, for example. The fluid, for example urea solution, which flows into the filter chamber via the through-holes 3, can be in fluid communication with the outer space of the filter chamber via the filter sheet 17. The first housing 1 and/or the second housing 2 are integrated with the filter 17 by injection molding, so that the filter 17 is firmly fixed to the first end cap 11 and/or the second end cap 13 and closes the hollow portion 15.
The first end cap 11 and/or the second end cap 13 may further have at least one plate rib 19, and the at least one plate rib 19 separates two adjacent hollow portions 15, so as to reinforce the support of the filter 17 and prevent the filter 17 from being damaged when a large amount of fluid rushes into the filter.
The first housing 1 may further include a side wall 21 extending outward from the edge of the first end cap 11. The second end cap 13 is adapted to snap fit over the opening of the side wall 21. For example, as shown in the second end cap 13 of fig. 1, the peripheral edge of the second end cap 13 may form an annular protrusion toward the first end cap 11, and the side wall of the first end cap forms an annular recess, and the protrusion and the recess are snapped together, thereby joining the first housing 1 and the second housing 2.
At least one of the first end cap 11 and the second end cap 13 is provided with at least one through hole 3. As shown in fig. 1 and 2, the first end cap 11 is provided with a through hole 3. The opening of the through-hole 3 may be various shapes, for example, may be circular. Although only one through-hole 24 is shown in the drawings, two or more through-holes 3 may be provided as needed, for example, 2 or more through-holes 3 may be provided on the first casing 1 or the second casing 2.
As shown in fig. 1 and 2, when the through hole 3 is provided in the first end cap 11, the second end cap 13 is provided with a baffle 23 for resisting the impact of the fluid from the through hole 3 at a position opposite to the through hole 3 of the first end cap 11, and the size of the baffle 23 may be the same as or substantially the same as the size of the opening of the through hole 3. Still further, the baffle 23 may have a blind hole with an opening facing away from the filter chamber. The first end cap 11 may be provided with a plug 25 for blocking the blind hole.
The utility model discloses a filter chamber subassembly can be used for filtering various fluids, in particular, can install at vehicle exhaust filtration system and be used for filtering urea solution as the urea filter, when installing in vehicle exhaust filtration system, can be provided with the installed part on this filter chamber subassembly, for example figure 1, 2 show, be equipped with two engaging lugs 27 along the convex of the periphery wall of lateral wall 21 at first end cover 11, engaging lug 27 can be provided with the mounting hole for install filter assembly in vehicle exhaust filtration system for example.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A filter assembly comprising a housing defining a filter chamber in sealed engagement by first and second housings, the housing being provided with at least one through-hole in fluid communication with the filter chamber, wherein at least one of the first and second housings has at least one hollowed-out portion, the hollowed-out portion being closed by a filter sheet through which fluid in the filter chamber can be in fluid communication with an ambient space of the filter chamber, at least one of the first and second housings being integrated with the filter sheet by injection moulding.
2. The filter assembly of claim 1, wherein the first housing and the second housing each have a plurality of the hollowed-out portions, each of the hollowed-out portions being enclosed by the filter sheet.
3. The filter assembly of claim 2, wherein the plurality of cutouts on the first and/or second housing are separated by a plate rib between adjacent two cutouts.
4. The filter assembly of claim 1, wherein the first housing includes a first end cap and a sidewall extending outwardly from a rim of the first end cap, the first end cap having the at least one cutout disposed thereon; the second shell comprises a second end cover, the second end cover is suitable for being buckled at the opening of the side wall, and the second end cover is provided with the at least one hollow-out part.
5. The filter assembly of claim 4, wherein the first housing further comprises an attachment lug projecting from a peripheral wall of the sidewall.
6. The filter assembly of claim 4, wherein the second end cap is welded to the sidewall.
7. The filter assembly of any of claims 4-6, wherein the through-hole is a fluid inflow hole and is disposed on one of the first end cap and the second end cap.
8. The filter assembly of claim 7, wherein the other of the first and second end caps is provided with a baffle at a location corresponding to the fluid inflow aperture.
9. The filter assembly of claim 1, wherein the filter sheet is a filter paper or a filter membrane.
10. A urea filter, characterized in that a filter assembly according to any one of claims 1-9 is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023298932.9U CN214861504U (en) | 2020-12-31 | 2020-12-31 | Filter assembly and urea filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023298932.9U CN214861504U (en) | 2020-12-31 | 2020-12-31 | Filter assembly and urea filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214861504U true CN214861504U (en) | 2021-11-26 |
Family
ID=78910769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023298932.9U Active CN214861504U (en) | 2020-12-31 | 2020-12-31 | Filter assembly and urea filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214861504U (en) |
-
2020
- 2020-12-31 CN CN202023298932.9U patent/CN214861504U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |