CN107800044A - Outdoor low-voltage distribution box top waterproof construction - Google Patents
Outdoor low-voltage distribution box top waterproof construction Download PDFInfo
- Publication number
- CN107800044A CN107800044A CN201610778448.5A CN201610778448A CN107800044A CN 107800044 A CN107800044 A CN 107800044A CN 201610778448 A CN201610778448 A CN 201610778448A CN 107800044 A CN107800044 A CN 107800044A
- Authority
- CN
- China
- Prior art keywords
- top cover
- water fender
- distribution box
- sunk
- voltage distribution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
Abstract
The invention discloses outdoor low-voltage distribution box top waterproof construction, including distributing box（1）With sunk type top cover（2）, distributing box（1）Upper end is provided with interior bending plane, the interior bending plane is connected with sunk type top cover by fixedly connected part, sunk type top cover includes sunk unit and cover unit, the bottom surface of sunk unit is provided with heat emission hole, and heat emission hole is provided with insect prevention silk screen, water fender is provided with sunk type top cover, water fender is above heat emission hole or insect prevention silk screen, the medial surface of water fender and sunk type top cover leaves space, and water fender is installed in interior bending plane by fixedly connected part, and interior bending plane has upwardly extended dash flange（6）.Invention achieves outdoor low-voltage distribution box top waterproof construction degree of protection IP44 requirement, and the shell protection grade at the top of it is set to lift the needs for IP45, fully meeting outdoor low-voltage distribution box top waterproof construction by IP44.
Description
Technical field
The invention belongs to the structure design and manufacturing field of equipment of power system city net, rural power grids distributed board outdoor, specifically relate to
A kind of and outdoor low-voltage distribution box top waterproof construction.
Background technology
Outdoor distribution box is largely used in the end of city net, rural power grids outdoor electricity distribution extensively, due to for outdoor use,
Therefore the technical requirements of the shell protection grade of distributed board outdoor are IP44.
Completed with welding box body or the form of assembling on existing distributed board outdoor top structure generally use top.Its top structure
In order to reach the purpose of ventilation and heat, mostly there is ventilation and heat slotted eye using the lower edge punching in top surrounding, in the top of slotted eye
Being pressed or being welded has<The stainless steel cloth of 40 mesh, to prevent>1 object or small echiuran enter in distribution box.So it can reach
IP40 degree of protection.But it is not tight enough into measure that all directions are prevented from dabbling, it is difficult to reaches IP40 protection level requirements.
Due to case top and casing be plane to flat face, be either welded or assemble, can not all prevent from peripheral direction
Dabble into joint gap and flow into distribution box, if shower water, water column can also be entered current by the space of silk screen from below
Enter casing, it is impossible to meet shell protection grade IP44 waterproof requirement, if current overflow into casing, distribution box will be triggered in work
The generation of dangerous accident when making state.Solve the waterproof technique requirement of distributed board outdoor, the top structure and case of distribution box
It is a crucial technical problem that distributed board outdoor must solve that body structural attachments, which make waterproof construction processing and design,.
The content of the invention
The purpose of the present invention is to be to overcome problem of the prior art, there is provided outdoor low-voltage distribution box top waterproof knot
Structure.
The outdoor low-voltage distribution box top waterproof construction of the present invention, including distributing box and sunk type top cover, it is described to match somebody with somebody
Electronic box body upper end is provided with interior bending plane, and the interior bending plane is connected with sunk type top cover by fixedly connected part, described solid
Determine connector junction and be provided with waterproof washer, the sunk type top cover includes sunk unit and cover unit, the sunk unit
Bottom surface be provided with heat emission hole, the heat emission hole is provided with insect prevention silk screen, and water fender, the dash are provided with the sunk type top cover
For plate above heat emission hole or insect prevention silk screen, the medial surface of the water fender and sunk type top cover leaves space, the water fender
It is installed on by fixedly connected part in interior bending plane, the interior bending plane has upwardly extended dash flange.
As a further improvement on the present invention, the water fender forms the angle of 5-85 degree with insect prevention silk screen or heat emission hole.
As a further improvement on the present invention, the fixedly connected part includes blind nut and fixing bolt, the dash
Plate is fixedly installed in casing upper end in bending plane by blind nut and fixing bolt, is set between fixing bolt and casing
There is waterproof washer.
The present invention compared with prior art, has advantages below：
Sunk type is used between the sunk type top cover and distributing box of the outdoor low-voltage distribution box top waterproof construction of the present invention
Installation, top cover sinks to be provided with angle installed in the surrounding of distributing box, the installation of distributing box upper end with reference to the interior edge on side
Dash flange, the dash flange is placed in the surrounding of distributing box upper end interior edge, and is provided with corresponding band angle along edge under top cover
Water fender, leave on the inside of the top of water fender and lid periphery>10 air channel, so that outer gas stream is entered by silk screen aperture
Afterwards, enter cartonning top along the gap between water fender and inside of top cover, play a part of reducing temperature rise.Conversely, in distributing box
Thermal current caused by portion's component can also be flowed out by the silk screen hole of surrounding, equally play a part of reducing temperature rise.
Even if entering top cover by silk screen hole from dabbling or spraying water for bottom entrance, it can also be blocked and must not enter by water fender
Enter inside distributing box.If dabbling with shower water, it is fashionable to enter along under surrounding along edge gap, when current enter top cover with matching somebody with somebody
The faying face of electronic box body, the water overflowed into can also block by dash flange, into inside not distributing box.The bolt of fixed installation
Waterproof washer is added between blind nut, water also can permeate distributing box.Due in distributing box and top cover faying face
Surrounding is provided with dash flange, the inner side edge surrounding of top cover lower edge installation is provided with water fender, the blind nut of fixed installation
Waterproof washer is added between bolt, is entered so as to be effectively prevented all directions and dabble with shower water in distributing box
Portion, has reached outdoor low-voltage distribution box top waterproof construction degree of protection IP44 requirement, and makes the shell protection at the top of it
Grade is lifted the needs for IP45, fully meeting outdoor low-voltage distribution box top waterproof construction by IP44.
Brief description of the drawings
Fig. 1 is the structural representation of outdoor low-voltage distribution box top waterproof of the present invention.
Fig. 2 is the structural representation of prior art.
In figure：1- distributing boxes, 2- sunk type top covers, 2-1 sunk units, 2-2 cover units, 3- heat emission holes, 4- insect prevention
Silk screen, 5- water fenders, 6- dash flange, 7- blind nuts, 8- fixing bolts, 9- waterproof washers.
Embodiment
Explanation that the present invention will be further explained with reference to the accompanying drawings and examples.
As shown in figure 1, outdoor low-voltage distribution box top waterproof construction, including distributing box 1 and sunk type top cover 2, match somebody with somebody
The upper end of electronic box body 1 is provided with interior bending plane, and interior bending plane is connected with sunk type top cover 2 by fixedly connected part, sunk type top
Lid 2 includes sunk unit 2-1 and cover unit 2-2, and sunk unit 2-1 bottom surface is provided with heat emission hole 3, and heat emission hole 3 is provided with anti-
Worm silk screen 4, is provided with water fender 5 in sunk type top cover 2, water fender 5 located at heat emission hole 3 and the top of insect prevention silk screen 4, water fender 5 and
The medial surface of sunk type top cover 2 leaves space, and water fender 5 is installed in interior bending plane by fixedly connected part, and interior bending is put down
Dash flange 6 is extended with upwardly.Water fender 5 forms the angle of 5-85 degree with insect prevention silk screen 4 and heat emission hole 3.Fixedly connected part
Including blind nut 7 and fixing bolt 8.Waterproof washer 9 is provided between fixing bolt 8 and interior bending Plane Installation hole.
The above is example and explanation of the invention, but does not mean that the obtainable advantage of the present invention is so limited, all
It is wherein the one of may be to being realized in the simple transformation of structure, and/or some embodiments in practice process of the present invention the advantages of
It is individual or multiple in the protection domain of the application.
Claims (3)
1. outdoor low-voltage distribution box top waterproof construction, it is characterised in that：Including distributing box（1）With sunk type top cover（2）,
The distributing box（1）Upper end is provided with interior bending plane, the interior bending plane and sunk type top cover（2）Pass through fixedly connected part
Connection, sunk type top cover（2）Including sunk unit（2-1）And cover unit（2-2）, the sunk unit（2-1）Bottom surface set
There is heat emission hole（3）, the heat emission hole（3）It is provided with insect prevention silk screen（4）, the sunk type top cover（2）It is interior to be provided with water fender（5）,
The water fender（5）Located at heat emission hole（3）Or insect prevention silk screen（4）Top, the water fender（5）With sunk type top cover（2）It is interior
Leave space, the water fender in side（5）It is installed on by fixedly connected part in interior bending plane, the interior bending plane is upward
It is extended with dash flange（6）.
2. outdoor low-voltage distribution box top waterproof construction according to claim 1, it is characterised in that：The water fender
（5）With insect prevention silk screen（4）Or heat emission hole（3）Form the angle of 5-85 degree.
3. outdoor low-voltage distribution box top waterproof construction according to claim 1, it is characterised in that：It is described to be fixedly connected
Part includes blind nut（7）And fixing bolt（8）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610778448.5A CN107800044A (en) | 2016-08-31 | 2016-08-31 | Outdoor low-voltage distribution box top waterproof construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610778448.5A CN107800044A (en) | 2016-08-31 | 2016-08-31 | Outdoor low-voltage distribution box top waterproof construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107800044A true CN107800044A (en) | 2018-03-13 |
Family
ID=61529246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610778448.5A Pending CN107800044A (en) | 2016-08-31 | 2016-08-31 | Outdoor low-voltage distribution box top waterproof construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107800044A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021050049A1 (en) * | 2019-09-10 | 2021-03-18 | Corning Research & Development Corporation | Deflector and method for reducing entry of dust and/or fluid into an enclosure |
-
2016
- 2016-08-31 CN CN201610778448.5A patent/CN107800044A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021050049A1 (en) * | 2019-09-10 | 2021-03-18 | Corning Research & Development Corporation | Deflector and method for reducing entry of dust and/or fluid into an enclosure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180313 |
|
| WD01 | Invention patent application deemed withdrawn after publication |