CN109068520B - Dustproof and waterproof good filtration window - Google Patents
Dustproof and waterproof good filtration window Download PDFInfo
- Publication number
- CN109068520B CN109068520B CN201811151756.0A CN201811151756A CN109068520B CN 109068520 B CN109068520 B CN 109068520B CN 201811151756 A CN201811151756 A CN 201811151756A CN 109068520 B CN109068520 B CN 109068520B
- Authority
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- China
- Prior art keywords
- filter
- front cover
- rear cover
- protecgulum
- filtering
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Links
- 238000001914 filtration Methods 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000007789 sealing Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 11
- 238000010030 laminating Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 13
- 238000009423 ventilation Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 230000000452 restraining effect Effects 0.000 abstract description 4
- 239000008187 granular material Substances 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 12
- 230000002265 prevention Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000012945 sealing adhesive Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0213—Venting apertures; Constructional details thereof
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/069—Other details of the casing, e.g. wall structure, passage for a connector, a cable, a shaft
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention relates to the technical field of electrical equipment protection, in particular to a dustproof and waterproof filtering wind window which comprises a front cover and a rear cover, wherein a front cover wind opening is formed in the front cover, a rear cover wind opening is formed in the rear cover, a filtering component is arranged between the front cover and the rear cover and comprises a filtering layer, a filtering frame is sleeved outside the edge of the filtering layer, a filtering frame baffle for restraining the filtering frame is arranged on the front cover, and a filtering frame jacking column propped against the filtering frame is arranged on the rear cover. The pressure that this technical scheme provided has effectively blockked rivers to filter the wind window, and some little water that enters into the filter wind window back lid can flow from the play basin position of protecgulum and back lid design to waterproof nature is good to the gap department between each subassembly of filter wind window all obtains sealed processing, and the dust granule is filtered completely under the filtration of filter media, under the good circumstances of guaranteeing ventilation, reaches IP65 protection level's requirement completely, ensures electrical equipment safe operation.
Description
Technical Field
The invention relates to the technical field of electrical equipment protection, in particular to a dustproof and waterproof filtering wind window.
Background
In the existing electrical equipment, because the electronic components in the equipment generate heat higher during operation, active heat dissipation is needed by means of a ventilation system, and in order to avoid dust and foreign matters in the air entering the equipment, a filtering air window is needed to be installed for filtering. Along with the continuous improvement of the precision of electrical equipment, the performance requirements on the filtering air window are more and more strict, and the current filtering air window also develops from a single dustproof function to a multifunctional direction such as dust prevention, water prevention, insect prevention and the like.
Currently, the highest protection level of the filtering wind window on the market is IP55, and the protection wind window of the IP55 level has to be improved in terms of dust-proof and water-proof performance. To achieve a higher IP65 rating, there are two problems to be solved: the first difficulty is: dust-proof IP6X, the result of the test is that no dust enters the electrical equipment through the filter window. The test method of the national standard "Shell protection class (IP code) GB_T4208-2017 (which corresponds to the International electrotechnical Commission standard IEC60529:2013, IDT) is briefly described as follows: the electric equipment with the surface provided with the filtering wind window is placed in the test container, 2 kg of talcum powder with the particle diameter less than or equal to 75um is placed in the test container, negative pressure 2KPa is pumped into the electric equipment, the air carrying the talcum powder is required to enter the electric equipment continuously through the filtering wind window, after the test state is not less than 2 hours continuously, the talcum powder cannot be contained in the electric equipment, namely, the filtering wind window passes through the test of IP 6X.
The second difficulty is: the waterproof IPX5 is tested by spraying water in all directions, and no water enters the electrical equipment. The test method of the national standard "Shell protection class (IP code) GB_T4208-2017 (which corresponds to the International electrotechnical Commission standard IEC60529:2013, IDT) is briefly described: the water nozzles are used for spraying the water to the electric equipment with the filtering ventilation window on the surface according to the following parameters: water flow rate of 12.5+/-0.625L/min; nozzle water pressure about 30kPa (0.3 bar); the minimum test duration was 3min. Therefore, it is of great importance to design a filter window meeting the IP65 requirement.
Disclosure of Invention
The embodiment of the invention aims to provide a filter wind window with good dustproof and waterproof properties so as to meet the requirement of IP65 protection level.
In order to achieve the above purpose, the embodiment of the invention provides a filter wind window with good dustproof and waterproof properties, which comprises a front cover and a rear cover, wherein a front cover wind opening is formed in the front cover, a rear cover wind opening is formed in the rear cover, a filter assembly is arranged between the front cover and the rear cover, the filter assembly comprises a filter layer, a filter frame is sleeved outside the edge of the filter layer, a filter frame baffle for restraining the filter frame is arranged on the front cover, and a filter frame jack post propped against the filter frame is arranged on the rear cover.
As an improvement of the technical scheme, the rear cover is provided with a fan mounting hole.
As an improvement of the technical scheme, a filter layer clamping groove for fixing the filter layer is formed in the inner side of the filter frame.
As an improvement of the technical scheme, a filter frame pressing pad is further arranged between the filter frame and the front cover, and a filter top edge which is in contact fit with the filter frame pressing pad is arranged on the front cover.
As an improvement of the technical scheme, the filter layer is provided with a hard framework, a plurality of folding grooves are uniformly formed in the hard framework, and the filter layer is restrained by the folding grooves to form a plurality of folds which are uniformly distributed.
As the improvement of the technical scheme, the front cover edge extends towards the rear cover direction to form a front cover flanging, the rear cover edge extends outwards to form a rear cover flanging, and after the front cover and the rear cover are attached, the rear cover flanging is clamped between the filter frame baffle and the front cover flanging.
As an improvement of the technical scheme, a front cover sealing rubber strip is arranged between the rear cover flanging and the front cover flanging.
As the improvement of the technical scheme, a rear cover sealing groove is formed in one side, deviating from the front cover flanging, of the rear cover flanging, and a rear cover sealing rubber strip is arranged in the rear cover sealing groove.
As an improvement of the technical scheme, the front cover water outlet groove is formed in the front cover flanging, and the rear cover water outlet groove is formed in the position, corresponding to the front cover water outlet groove, of the rear cover.
As an improvement of the technical scheme, the positions of the front cover water outlet groove and the rear cover water outlet groove are provided with water channel dustproof filter materials.
The pressure that the filtration window that above-mentioned scheme provided can effectively block rivers, and the inboard water of lid can be covered the play basin structure of design in protecgulum and back after entering into the filtration window flows, and waterproof nature is good to all obtain sealed processing in the gap department between each subassembly of filtration window, the dust granule is filtered completely under the filtration of filter layer, under the good circumstances of guaranteeing ventilation, reaches the requirement of IP65 protection level completely, guarantees electrical equipment safe operation.
Drawings
Fig. 1 is a schematic perspective view of a side of a filter window close to a front cover with good dustproof and waterproof properties in an embodiment of the invention.
Fig. 2 is a schematic perspective view of a side of a filter window close to a rear cover with good dust and water resistance in an embodiment of the invention.
Fig. 3 is a schematic diagram of a split structure of a side, close to a front cover, of a filtering wind window with good dustproof and waterproof properties in an embodiment of the invention.
Fig. 4 is a schematic diagram of a split structure of a side, close to a rear cover, of a filtering wind window with good dustproof and waterproof properties in an embodiment of the invention.
Fig. 5 is a schematic diagram of an internal structure of a filtering wind window with good dustproof and waterproof properties in an embodiment of the invention.
Fig. 6 is a schematic structural view of a front cover of a filter window according to an embodiment of the present invention.
Fig. 7 is a schematic structural view of a filter layer of a filter window according to an embodiment of the present invention.
Fig. 8 is a schematic structural view of a rigid framework of a filter window according to an embodiment of the present invention.
Fig. 9 is a schematic structural view of a rear cover of a filter window according to an embodiment of the present invention.
In the figure: 10-front cover, 11-front cover flanging, 12-front cover air opening, 13-filter frame baffle, 14-filter top edge, 20-filter frame, 21-filter layer clamping groove, 30-filter layer, 31-fold, 40-filter frame compacting pad, 50-hard framework, 51-folding groove, 60-back cover, 61-back cover flanging, 62-back cover air opening, 63-filter frame jacking column, 64-back cover water outlet groove, 65-fan mounting hole, 70-back cover sealing rubber strip, 71-front cover sealing rubber strip, 80-water channel dustproof filter material, 101-front cover mounting hole, 131-front cover water outlet groove, 601-back cover positioning hole, 611-back cover sealing groove.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following examples.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention. Also, the terms such as "upper", "lower", "inner", etc. are used herein for descriptive purposes only and not for limiting the scope of the invention, and are intended to be within the scope of the invention without any substantial modification to the technical context.
In the description of the embodiments below, unless explicitly stated and limited otherwise, the terms "disposed," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; either mechanically or indirectly, through intermediaries, or in communication with each other, or in interaction with each other, unless otherwise specifically defined. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1, 2, 3, 4 and 5, the embodiment of the invention firstly provides a filter window with good dust and water resistance, which comprises a front cover 10 and a rear cover 60, wherein a front cover air port 12 is formed in the front cover 10, a rear cover air port 62 is formed in the rear cover 60, a filter assembly is arranged between the front cover 10 and the rear cover 60, the filter assembly comprises a filter layer 30, a filter frame 20 is sleeved outside the edge of the filter layer 30, a filter frame baffle 13 for restraining the filter frame 20 is arranged on the front cover 10, and a filter frame top column 63 propped against the filter frame 20 is arranged on the rear cover 60.
The above-mentioned scheme adopts the composite construction of protecgulum 10, filter component and hou gai 60, be provided with filter layer 30 in filter component's the filter frame 20, for retraining the location to filter frame 20, be provided with the filter frame baffle 13 of fixed filter frame 20 on the protecgulum 10, the number of filter frame baffle 13 is four, four filter frame baffles 13 enclose into "mouthful" font, enclose to close fixedly to filter frame 20, filter frame baffle 13 and protecgulum 10 are integrated into one piece's structure simultaneously, can improve the contact inseparable degree between filter frame 20 edge and the filter frame baffle 13, avoid the dust to enter into the region of hou gai 60 from the gap between filter frame 20 edge and the protecgulum 10, thereby the filtration of filter layer 30 is gone into. The rear cover 60 is provided with a filter frame jack post 63 which abuts against the filter frame 20, and the filter frame 20 is supported by the filter frame jack post 63, so that the filter frame 20 is stably and reliably fixed between the front cover 10 and the rear cover 60. A filter frame pressing pad 40 is further provided between the filter frame 20 and the front cover 10, and the filter frame pressing pad 40, the filter frame baffle 13, and the filter frame top column 63 support and fix three sides of the filter frame 20. The front cover 10 is provided with the filtering top edge 14 which is contacted and attached with the filter frame pressing pad 40, the attaching effect of the front cover 10 when the filter frame pressing pad 40 is contacted is improved through the filtering top edge 14, and the dustproof effect is improved.
Further, the rear cover 60 is provided with a fan mounting hole 65, a fan assembly (not shown in the figure) can be mounted through the fan mounting hole 65, and after the fan assembly or the independent filtering wind window is combined, the air inside and outside the electric equipment can be well exchanged, so that the cooling effect is achieved, the protection grade of IP65 is achieved through dust prevention and water prevention, and the safe and stable operation of the electric equipment is ensured.
The inner side of the filter frame 20 is provided with a filter layer clamping groove 21 for fixing the filter layer 30, the filter layer clamping groove 21 has the function of restraining and fixing the filter layer 30, and the filter layer 30 can be made of a laminar filter material made of materials such as paper, metal mesh, metal powder sintering, PP filter element, fiber fabric, active carbon and the like in the prior art.
As shown in fig. 7 and 8, in order to prevent deformation of the filter layer 30 due to excessive wind flow, a hard frame 50 may be provided on the filter layer 30, and a plurality of folded grooves 51 may be uniformly provided on the hard frame 50, and the filter layer 30 may be restrained by the folded grooves 51 to form a plurality of uniformly distributed pleats 31. The two functions of the hard framework 50 are provided, and firstly, the filter layer 30 can form a multi-layer folded fold shape, so that the filter area is greatly increased, and the filter layer 30 can ensure the folded shape in the use process under the constraint of the hard framework 50; second, because the filter layer 30 has a certain flexibility, the filter layer 30 is easily deformed in the wind flow or water spray experiment, so that the hard framework 50 is used to improve the impact resistance of the filter layer 30, disperse the pressure of the wind flow and the water flow, and improve the stability of the structure of the filter layer 30.
As shown in fig. 6 and 9, the edge of the front cover 10 extends in the direction of the rear cover 60 to form a front cover flange 11, the edge of the rear cover 60 extends outward to form a rear cover flange 61, and after the front cover 10 and the rear cover 60 are attached, the rear cover flange 61 is engaged between the filter frame baffle 13 and the front cover flange 11. During the mounting process, the front cover 10 and the rear cover 60 are fixed by the contact fit of the front cover flange 11 and the rear cover flange 61.
A front cover sealing rubber strip 71 is arranged between the rear cover flange 61 and the front cover flange 11, a rear cover sealing groove 611 is formed in one side, away from the front cover flange 11, of the rear cover flange 61, and a rear cover sealing rubber strip 70 is arranged in the rear cover sealing groove 611. In the preferred embodiment, the front cover sealing rubber strip 71 and the rear cover sealing rubber strip 70 can completely seal the seam between the front cover 10 and the rear cover 60, so that dust and water are prevented from entering the filter wind window through the gap between the front cover 10 and the rear cover 60. The front cover bead 71 and the rear cover bead 70 may be soft elastic sealant or putty in the prior art.
In the above proposal, the front cover flange 11 is provided with the front cover water outlet groove 131, the rear cover 60 is provided with the rear cover water outlet groove 64 corresponding to the front cover water outlet groove 131, and the front cover water outlet groove 131 and the rear cover water outlet groove 64 function to guide water entering the filter wind window through the front cover wind port 12 to flow out. In order to prevent dust from entering the filter louver at the front cover water outlet groove 131 and the rear cover water outlet groove 64, the water channel dustproof filter material 80 is arranged at the positions of the front cover water outlet groove 131 and the rear cover water outlet groove 64, the main structure of the water channel dustproof filter material 80 is a fold structure similar to the filter layer 30, dust cannot enter from the outside through the water channel dustproof filter material 80 after the water channel dustproof filter material 80 is installed, and meanwhile, the structure of the surface of the water channel dustproof filter material 80 can allow water in the filter louver to flow out under the dustproof condition.
The front cover 10 is provided with a front cover mounting hole 101, the rear cover 60 is provided with a rear cover positioning hole 601 matched with the front cover mounting hole 101, and the front cover mounting hole 101 and the rear cover positioning hole 601 are fixed and tensioned by fasteners such as bolts, screws and the like, so that the sealing strength among all the components of the filter wind window is improved.
The front cover 10 can be made of plastic through injection molding, the front cover air opening 12 can be a plurality of grid front cover air openings in grid form or other ventilation structures, and the direction of the front cover air opening can be changed to a certain extent by adopting the grid front cover air openings with oblique design, so that water flow is prevented from being directly splashed into the filtering air window, and the dustproof and waterproof effects to a certain extent are achieved.
The filtering wind window is assembled and installed through the following steps:
firstly, installing a filter assembly, namely fixing a filter layer 30 through a hard framework 50, putting the filter layer 30 into a filter layer clamping groove 21 of a filter frame 20, then putting a filter frame compression pad 40 and the filter frame 20 into a filter frame baffle 13 of a front cover 10 in sequence, and installing a water channel dustproof filter material 80 at the position of a front cover water outlet groove 131 to finish the installation of the filter assembly;
then, the front end surface of the rear cover 60 faces to the side, which faces away from the front cover 10, of the mounted filter assembly, the rear cover flange 61 of the rear cover 60 is attached into the front cover flange 11 of the front cover 10, and a layer of front cover sealing adhesive tape 71 is coated between the rear cover flange 61 and the front cover flange 11;
and then, fixing the front cover mounting hole 101 and the rear cover positioning hole 601 through a bolt fastener to complete the combination of the filter wind window, installing the assembled filter wind window on the electric equipment shell, and coating a layer of rear cover sealing adhesive tape 70 between the electric equipment shell and the rear cover sealing groove 611 of the rear cover flange 61 to ensure that no gap exists between the rear cover flange 61 and the electric equipment shell, thereby completing the installation of the filter wind window on the electric equipment.
Under the action of the bolt fastener, the front cover flange 11 of the front cover 10 is attached to the rear cover flange 61 of the rear cover 60, so that the front cover 10 and the rear cover 60 are completely attached, and the dustproof and waterproof effects are improved; the filter frame 20, the filter frame baffle 13 and the filter top edge 14 of the filter assembly are tightly attached to realize dust prevention and water prevention of a gap between the filter assembly and the front cover 10; the front cover tuyere 12 adopting the grid structure can block the wind flow and the water flow coming from the obliquely upper side, the front side and the side of the front cover 10, and the filter layer 30 is supported and fixed by adopting the hard framework 50, so that the wind flow and the water flow coming from the obliquely lower side of the front cover 10 can be blocked, the impact resistance of the filter layer 30 is good, and the waterproof and dustproof performances are stable.
While the invention has been described in detail in the foregoing general description and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (4)
1. The utility model provides a dustproof and waterproof nature is good filters window, its characterized in that, including protecgulum (10) and hou gai (60), protecgulum wind gap (12) have been seted up on protecgulum (10), back lid wind gap (62) have been seted up on hou gai (60), protecgulum (10) with be provided with filter unit between hou gai (60), filter unit includes filter layer (30), filter layer (30) edge overcoat has filter frame (20), be provided with filter frame baffle (13) of constraint filter frame (20) on protecgulum (10), be provided with on back lid (60) and support filter frame jack post (63) to filter frame (20), still be provided with filter frame and compress tightly pad (40) between filter frame (20) and protecgulum (10), be provided with on protecgulum (10) with filter frame compress tightly filter top edge (14) of pad (40) contact laminating, protecgulum (10) edge extends to back lid (60) direction and forms protecgulum (11), back lid (60) edge outside cover (60) edge cover, back lid (61) are provided with flange (61) and are formed between flange (61) and the protecgulum (61) and seal flange (61), rear cover sealing grooves (611) are formed in one side, deviating from the front cover flanging (11), of the rear cover flanging (61), rear cover sealing rubber strips (70) are arranged in the rear cover sealing grooves (611), front cover water outlet grooves (131) are formed in the front cover flanging (11), rear cover water outlet grooves (64) are formed in positions, corresponding to the front cover water outlet grooves (131), of the rear cover (60), and water channel dustproof filter materials (80) are arranged in the positions, corresponding to the front cover water outlet grooves (131), of the front cover water outlet grooves (131) and the rear cover water outlet grooves (64).
2. A dustproof and waterproof filtering window according to claim 1, characterized in that the rear cover (60) is provided with a fan mounting hole (65).
3. The dustproof and waterproof filtering wind window according to claim 1, wherein a filter layer clamping groove (21) for fixing the filter layer (30) is formed on the inner side of the filter frame (20).
4. The dustproof and waterproof filtering window according to claim 1, wherein a hard framework (50) is arranged on the filtering layer (30), a plurality of folding grooves (51) are uniformly formed in the hard framework (50), and the filtering layer (30) is restrained by the folding grooves (51) to form a plurality of evenly distributed folds (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811151756.0A CN109068520B (en) | 2018-09-29 | 2018-09-29 | Dustproof and waterproof good filtration window |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811151756.0A CN109068520B (en) | 2018-09-29 | 2018-09-29 | Dustproof and waterproof good filtration window |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109068520A CN109068520A (en) | 2018-12-21 |
| CN109068520B true CN109068520B (en) | 2024-03-12 |
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ID=64766744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811151756.0A Active CN109068520B (en) | 2018-09-29 | 2018-09-29 | Dustproof and waterproof good filtration window |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109068520B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000015585U (en) * | 1999-01-11 | 2000-08-05 | 이세엽 | Filter Assembly For Nuclear Power Plant |
| WO2001060137A1 (en) * | 2000-02-07 | 2001-08-16 | Otto Pfannenberg Elektro-Spezialgerätebau GmbH | Device for the passage of air |
| DE20308482U1 (en) * | 2003-05-28 | 2003-09-04 | Pfannenberg GmbH, 21035 Hamburg | Air passage device for e.g. electrical cabinet, especially filter fan or outlet filter with/without fan, has electromagnetic compatibility screen plate with metal frame, screen grid, contact tongues |
| CN101122299A (en) * | 2006-06-13 | 2008-02-13 | 普凡嫩贝格股份有限公司 | Filter fan with a quick fastening device |
| CN101158364A (en) * | 2006-10-06 | 2008-04-09 | 普凡嫩贝格股份有限公司 | Filter fan |
| CN202598702U (en) * | 2012-03-19 | 2012-12-12 | 庄思丰 | Air purifier |
| CN203978952U (en) * | 2014-06-20 | 2014-12-03 | 华东泓泽机电设备（昆山）有限公司 | The fan filter device of electric cabinet |
-
2018
- 2018-09-29 CN CN201811151756.0A patent/CN109068520B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000015585U (en) * | 1999-01-11 | 2000-08-05 | 이세엽 | Filter Assembly For Nuclear Power Plant |
| WO2001060137A1 (en) * | 2000-02-07 | 2001-08-16 | Otto Pfannenberg Elektro-Spezialgerätebau GmbH | Device for the passage of air |
| EP1262095A1 (en) * | 2000-02-07 | 2002-12-04 | Pfannenberg GmbH | Device for the passage of air |
| DE20308482U1 (en) * | 2003-05-28 | 2003-09-04 | Pfannenberg GmbH, 21035 Hamburg | Air passage device for e.g. electrical cabinet, especially filter fan or outlet filter with/without fan, has electromagnetic compatibility screen plate with metal frame, screen grid, contact tongues |
| CN101122299A (en) * | 2006-06-13 | 2008-02-13 | 普凡嫩贝格股份有限公司 | Filter fan with a quick fastening device |
| CN101158364A (en) * | 2006-10-06 | 2008-04-09 | 普凡嫩贝格股份有限公司 | Filter fan |
| US8951322B2 (en) * | 2006-10-06 | 2015-02-10 | Pfannenberg Gmbh | Filter fan |
| CN202598702U (en) * | 2012-03-19 | 2012-12-12 | 庄思丰 | Air purifier |
| CN203978952U (en) * | 2014-06-20 | 2014-12-03 | 华东泓泽机电设备（昆山）有限公司 | The fan filter device of electric cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109068520A (en) | 2018-12-21 |
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