CN102386574B - Protective device for electrical system box vent hole - Google Patents
Protective device for electrical system box vent hole Download PDFInfo
- Publication number
- CN102386574B CN102386574B CN201110316647.1A CN201110316647A CN102386574B CN 102386574 B CN102386574 B CN 102386574B CN 201110316647 A CN201110316647 A CN 201110316647A CN 102386574 B CN102386574 B CN 102386574B
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- Prior art keywords
- shell
- shell block
- cabinet
- electrical system
- intercommunicating pore
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Abstract
The invention discloses a protective device for an electrical system box vent hole. The protective device comprises a shell, wherein the shell comprises a bridging plate, two side plates which are arranged on the two sides of the bridging plate and are connected through the bridging plate, and an end plate which is used for sealing the rear ends of the two side plates and the bridging plate. The protective device is characterized in that the front end of the shell is provided with a shell seat, a communicating hole which is used to communicate with the vent hole is arranged on the shell seat, a dust screen which is used to seal the communicating hole is arranged on the shell, each inner edge wall of the bridging plate the two side plates of the shell is provided with at least one assembly bulge for assembling, the assembly bulges are provided with tapped blind holes, the parts of the shell seat, corresponding to the assembly bulges, are provided with assembly through holes. In the invention, since the shell seat is arranged between the shell and the outer wall of the box, a fixed structure is firmer; since assembly bulges are arranged on the inner edge walls of the bridging plate and the two side plates in a rasied manner, firmer assembly is achieved; meanwhile, the ventilation area of the protective device is increased so that the good ventilation effect can be reached; and since the dust screen is fixedly arranged on the shell seat the dust screen is fixed more firmly.
Description
Technical field
The present invention relates to a kind of protecting device for air vent of cabinet of electrical system, relate in particular to the protector at the cabinet of electrical system ventilating opening places such as convergence control cabinet, distribution box, mechanism case.
Background technology
Cabinet of electrical system in use, as without forced ventilation requirement, the general ventilation hole that adopts dispels the heat, takes a breath, but offering after ventilation hole, dust and little winged insect can enter box house from ventilation hole, when rainy, also can enter box house from ventilation hole by rain, bring potential safety hazard so to the reliability service of the equipment in casing, therefore the ventilation hole protection object of attaching most importance to, the degree of protection of the above-mentioned casing of national Specification need reach IP54, so the degree of protection of air hole protecting device also needs to reach the national standard of IP54.
Industry is to set up Air Filter for dustproof usual way at present, conventionally the method adopting for waterproof is to set up bucker, Chinese patent notification number is CN201726049U, the day for announcing is on 01 26th, 2011, name is called in ' a kind of air hole protecting device for outdoor box body ' specification and discloses a kind of air hole protecting device for outdoor box body, comprise for being installed in the protector housing and the dustproof filter pad that is positioned at protector enclosure interior in outdoor case, this protector housing comprises bridging board, be positioned at bridging board both sides and by the connected biside plate of bridging board and the side plate that is positioned at bridging board rear end and is connected with bridging board, described bridging board, the inner side of biside plate and side plate is configured for holding the cavity of dustproof filter pad, described dustproof filter pad is spacing by the Stop structure of being located at bridging board front end.But this air hole protecting device can not reach the national standard of IP54, and in this protector, Air Filter is all arranged on bucker, and this structure is insecure, and ventilation effect is bad.Bucker is normally fixed on casing with marine glue or water-proof sealing strip in addition, because bucker is located at casing outside, so marine glue or water-proof sealing rubber strip are directly exposed to occurring in nature, very easily ageing failure or be considered to destroy, and then damages bucker and casing.
Summary of the invention
The object of the present invention is to provide a kind of protecting device for air vent of cabinet of electrical system, inadequate to solve in prior art the degree of protection of air hole protecting device, be mounted with insecure, the problem that ventilation effect is bad.
For achieving the above object, the present invention adopts following technical scheme: a kind of protecting device for air vent of cabinet of electrical system, comprise shell, described shell comprises bridging board, be positioned at bridging board both sides and by the connected biside plate of bridging board, and by the end plate of biside plate and bridging board back-end closure, shell front end spiral-lock has shell block, on described shell block, be provided with the intercommunicating pore for being communicated with ventilation hole, cavity between intercommunicating pore and shell and shell block has formed downward vent passages jointly, on shell block, be provided with the Air Filter for intercommunicating pore is sealed, the bridging board of shell and biside plate protrude and are provided with at least one assembling projection for assembling respectively on inner wall separately, in assembling projection, be provided with tapped blind hole, the corresponding described assembling raised position of shell block is provided with assembling through hole.
Vent passages below between shell and shell block is provided with water-retaining structure.
Described water-retaining structure comprises the staggered outstanding water fender of establishing, a two adjacent water fenders end face is separately installed in respectively on the sidewall of each self-corresponding shell, the overhang center of shell of the other end, the both sides of water fender extend to respectively on the medial surface of end plate of shell block rear end face and shell.
Described water fender free end is in the horizontal alignment angle that has a down dip.
On described shell block rear end face, convex with the support raised line for coordinating with water fender side lap in the below of water fender, the medial surface of the opposite side of water fender and the end plate of shell is fixedly installed.
Described shell block front end face convexes with in intercommunicating pore place for being inserted into the front ring platform in air vent of cabinet, the endoporus front end of front ring platform is provided with Turbogrid plates, shell block rear end face convexes with the rear ring platform of internal diameter and intercommunicating pore equal diameters in intercommunicating pore place, described rear ring platform inner chamber and intercommunicating pore have formed the cavity that holds Air Filter jointly, and Air Filter is arranged in described cavity.
Shell block front end face is provided with seal groove in air grid peripheral ring, in seal groove, be provided with for the waterproof grommet of cabinet exterior sealing.
Described bridging board is semicircle.
The outer edge surface of the front end edge shell of shell convexes with eaves, shell block have for the spacing outer edge surface coordinating of inner edge surface of described eaves, shell block buckle is in the eaves of shell.
A kind of protecting device for air vent of cabinet of electrical system of the present invention, between shell and cabinet exterior, be provided with shell block, make fixed structure more firm, assembling projection is protruded and is arranged on the inner wall of bridging board and biside plate, assemble more firmly, simultaneously the draught area of protector increases, and reaches good ventilation effect, Air Filter is installed on shell block, makes fixing more firm of Air Filter.
Further, the outstanding interlaced water fender of establishing of outer casing underpart, in the case of not increasing the distance between shell lower ending opening and ventilation hole, has effectively prevented that rainwater is splashed in casing by vent passages.
Further, the downward-sloping angle of water fender free end, while effectively having prevented from dabbling, aqueous reflux enters vent passages.
Further, shell block front end face is provided with the air grid of protrusion, and air grid coordinates with ventilation hole sleeve, better by protector location and installation at air vent of cabinet place, simultaneously air grid is also positioned at Air Filter in intercommunicating pore accurately.
Further, the waterproof grommet of shell block front end face setting does not need in prior art to prevent that rainwater is from connecting the casing of entering between gap being coated with fluid sealant around shell, seal is arranged on shell block inside, is difficult for agingly, has extended useful life of air hole protecting device.
Further, semicircular bridging board, has prevented shell top ponding.
Brief description of the drawings
Fig. 1 is the front view of the shell block in the embodiment of the present invention 1;
Fig. 2 is the cutaway view of the left view of Fig. 1;
Fig. 3 is the rearview of Fig. 1;
Fig. 4 is the front view of the shell in the embodiment of the present invention 1;
Fig. 5 is the cutaway view of the left view of Fig. 4;
Fig. 6 is that the assembling of the embodiment of the present invention 1 is used structural representation;
Fig. 7 is the front view of the shell block in the embodiment of the present invention 2;
Fig. 8 is the cutaway view of the left view of Fig. 7;
Fig. 9 is the front view of the shell in embodiments of the invention 2;
Figure 10 is the cutaway view of the left view of Fig. 9;
Figure 11 is that the assembling of the embodiment of the present invention 2 is used structural representation;
Figure 12 is the stereogram of embodiments of the invention 2.
Embodiment
A kind of embodiment 1 of protecting device for air vent of cabinet of electrical system, as shown in Fig. 1-Fig. 6, shell 2 in this embodiment is as shown in Fig. 4-5, for one-shot forming structure, it comprises that top is semicircular bridging board 24, be positioned at bridging board both sides and by the connected biside plate 25 of bridging board, and by the end plate 26 of biside plate and bridging board back-end closure, the outer edge surface of the front end edge shell of shell 2 convexes with eaves 27, on the bridging board of shell and the inner wall of biside plate, protrude respectively the assembling projection 21 being provided with for assembling, in assembling projection 21, be provided with tapped blind hole 23, the shell block 1 of embodiment 1, this shell block 1 has the outer edge surface matching with the inner edge surface shape of the eaves 27 of shell 2 as Figure 1-3, on shell block 1, protruding 21 places of corresponding assembling are provided with assembling through hole 15, on shell block 1, be provided with the intercommunicating pore 14 for being communicated with air vent of cabinet, intercommunicating pore 14 front ends convex with for the spacing front ring platform 18 coordinating of air vent of cabinet, the endoporus front end of front ring platform 18 is provided with Turbogrid plates 12, intercommunicating pore 14 rear ends convex with the rear ring platform 16 of internal diameter and intercommunicating pore equal diameters, shell block 1 front end face is equipped with seal groove 11 in the outer wall place of front ring platform 18, the present embodiment 1 in use, as shown in Figure 6, rear ring platform 16 has Air Filter 3 with the inner chamber welding (or being threaded) of intercommunicating pore 14, shell block 1 spiral-lock is in the eaves 27 of shell 2 front ends, cavity between intercommunicating pore 14 and shell block 1 and shell 2 has formed downward vent passages jointly, seal groove 11 on shell block 1 has been embedded in waterproof grommet 5, front ring platform 18 on shell block 1 is inserted in the ventilation hole of casing, bolt 4 is screwed into through the assembling through hole 15 casing and shell block 1 from cabinet wall in the tapped blind hole 23 in the assembling projection 21 of shell, shell block 1 and shell are connected to the disposed at air vent of casing, between screw 4 and cabinet wall, be provided with gear spring shim 6.
A kind of embodiment 2 of protecting device for air vent of cabinet of electrical system, as shown in Fig. 7-12, embodiments of the invention 2 are with the difference of embodiment 1, embodiment 2 is on the basis of the structure of the shell based in embodiment 1 and shell block, between shell 2 and shell block 1, be provided with water-retaining structure in vent passages bottom, described water-retaining structure comprises, as shown in Fig. 9-Figure 10, three water fenders 22 that are crisscross arranged, a two adjacent water fenders end face is separately installed in respectively on the sidewall of each self-corresponding shell, the other end is tilted to down the center that extends through shell, as shown in Fig. 7-Fig. 8, shell block 1 is the staggered support raised line 13 being provided with for matching with the lower edge face of water fender 22 in the below of the position of the water fender 22 of corresponding shell 2, one side of water fender is fixedly installed on the medial surface of end plate, opposite side is overlapped on and supports on raised line 13, the present embodiment is in the time that assembling is used, as shown in figure 10, the water fender 22 of shell 2 is overlapped on the support raised line 13 on shell block 1.
In other embodiments, in the time that assembling is used, on shell block, can also not be embedded waterproof grommet, around shell block and casing contact-making surface, be coated with waterproof gasket cement, reach sealing effectiveness.
In other embodiments; described water-retaining structure can also be the two rows cylinder that staggers between shell block and shell and arrange; the improvement of the unsubstantiality that those skilled in the art carry out water-retaining structure on the basis of this design and technical scheme, within all dropping on protection scope of the present invention.
In embodiment 2, the number of water fender is three, and those skilled in the art also can be arranged to two or four, but within all dropping on protection scope of the present invention.
In other embodiments, shell and shell block also can directly be welded on cabinet exterior.
Claims (6)
1. a protecting device for air vent of cabinet of electrical system, comprise shell, described shell comprises bridging board, be positioned at bridging board both sides and by the connected biside plate of bridging board, and by the end plate of biside plate and bridging board back-end closure, it is characterized in that, shell front end spiral-lock has shell block, on described shell block, be provided with the intercommunicating pore for being communicated with ventilation hole, cavity between intercommunicating pore and shell and shell block has formed downward vent passages jointly, on shell block, be provided with the Air Filter for intercommunicating pore is sealed, the bridging board of shell and biside plate protrude and are provided with at least one assembling projection for assembling respectively on inner wall separately, in assembling projection, be provided with tapped blind hole, the corresponding described assembling raised position of shell block is provided with assembling through hole, vent passages below between shell and shell block is provided with water-retaining structure, described water-retaining structure comprises the staggered outstanding water fender of establishing, a two adjacent water fenders end face is separately installed in respectively on the sidewall of each self-corresponding shell, the overhang center of shell of the other end, the both sides of water fender extend to respectively on the medial surface of end plate of shell block rear end face and shell, described shell block front end face convexes with in intercommunicating pore place for being inserted into the front ring platform in air vent of cabinet, the endoporus front end of front ring platform is provided with Turbogrid plates, shell block rear end face convexes with the rear ring platform of internal diameter and intercommunicating pore equal diameters in intercommunicating pore place, described rear ring platform inner chamber and intercommunicating pore have formed the cavity that holds Air Filter jointly, Air Filter is arranged in described cavity.
2. protecting device for air vent of cabinet of electrical system according to claim 1, is characterized in that, described water fender free end is in the horizontal alignment angle that has a down dip.
3. protecting device for air vent of cabinet of electrical system according to claim 2, it is characterized in that, on described shell block rear end face, convex with the support raised line for coordinating with water fender side lap in the below of water fender, the medial surface of the opposite side of water fender and the end plate of shell is fixedly installed.
4. protecting device for air vent of cabinet of electrical system according to claim 1, is characterized in that, shell block front end face is provided with seal groove in front ring platform peripheral ring, in seal groove, be provided with for the waterproof grommet of cabinet exterior sealing.
5. protecting device for air vent of cabinet of electrical system according to claim 1, is characterized in that, described bridging board is semicircle.
6. protecting device for air vent of cabinet of electrical system according to claim 1, it is characterized in that, the outer edge surface of the front end edge shell of shell convexes with eaves, shell block have for the spacing outer edge surface coordinating of inner edge surface of described eaves, shell block buckle is in the eaves of shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110316647.1A CN102386574B (en) | 2011-10-18 | 2011-10-18 | Protective device for electrical system box vent hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110316647.1A CN102386574B (en) | 2011-10-18 | 2011-10-18 | Protective device for electrical system box vent hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102386574A CN102386574A (en) | 2012-03-21 |
| CN102386574B true CN102386574B (en) | 2014-07-23 |
Family
ID=45825698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110316647.1A Expired - Fee Related CN102386574B (en) | 2011-10-18 | 2011-10-18 | Protective device for electrical system box vent hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102386574B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108312879B (en) * | 2018-02-12 | 2020-11-03 | 合肥蓝川生态科技有限公司 | Shared automobile charging pile with air purification function |
| CN109616908B (en) * | 2018-11-27 | 2020-06-12 | 南京溧水高新创业投资管理有限公司 | Be located low water level and prevent floods electrical box that invades and have louvre |
| CN112285532B (en) * | 2020-10-15 | 2021-07-16 | 苏州莱锦机电自动化有限公司 | Electromechanical monitoring device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007028740A (en) * | 2005-07-13 | 2007-02-01 | Toshiba Corp | Filtering device for switchgear |
| CN201063522Y (en) * | 2007-04-25 | 2008-05-21 | 三垦力达电气(江阴)有限公司 | Dustproof ventilator unit for low-voltage frequency converter |
| CN201222398Y (en) * | 2008-07-04 | 2009-04-15 | 海南金盘电气有限公司 | Novel outdoor case ventilated structure |
| CN201893504U (en) * | 2010-11-18 | 2011-07-06 | 正泰电气股份有限公司 | Rain-proof dust-prevention type air exhaust blower device for prefabricated substation box body |
| CN202310365U (en) * | 2011-10-18 | 2012-07-04 | 平高集团有限公司 | Protecting device for air vent of cabinet of electrical system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201556646U (en) * | 2009-08-13 | 2010-08-18 | 中达电通股份有限公司 | Waterproof labyrinth structure of outdoor communication power-supply battery-cupboard cabinet body |
| CN201771823U (en) * | 2010-09-02 | 2011-03-23 | 广东九博电子科技有限公司 | Fan water-proof cage device of a small outdoor ONU box |
-
2011
- 2011-10-18 CN CN201110316647.1A patent/CN102386574B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007028740A (en) * | 2005-07-13 | 2007-02-01 | Toshiba Corp | Filtering device for switchgear |
| CN201063522Y (en) * | 2007-04-25 | 2008-05-21 | 三垦力达电气(江阴)有限公司 | Dustproof ventilator unit for low-voltage frequency converter |
| CN201222398Y (en) * | 2008-07-04 | 2009-04-15 | 海南金盘电气有限公司 | Novel outdoor case ventilated structure |
| CN201893504U (en) * | 2010-11-18 | 2011-07-06 | 正泰电气股份有限公司 | Rain-proof dust-prevention type air exhaust blower device for prefabricated substation box body |
| CN202310365U (en) * | 2011-10-18 | 2012-07-04 | 平高集团有限公司 | Protecting device for air vent of cabinet of electrical system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102386574A (en) | 2012-03-21 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20140723 Termination date: 20211018 |