CN207265497U - Mine direct current switchgear - Google Patents
Mine direct current switchgear Download PDFInfo
- Publication number
- CN207265497U CN207265497U CN201720899462.0U CN201720899462U CN207265497U CN 207265497 U CN207265497 U CN 207265497U CN 201720899462 U CN201720899462 U CN 201720899462U CN 207265497 U CN207265497 U CN 207265497U
- Authority
- CN
- China
- Prior art keywords
- cover board
- mounting bracket
- pressure release
- direct current
- ventilation hole
- 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.)
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- 238000009423 ventilation Methods 0.000 claims abstract description 37
- 239000004677 Nylon Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 206010020852 Hypertonia Diseases 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000003734 kidney Anatomy 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
It the utility model is related to the mine direct current switchgear in switchgear field, including cover board mounting bracket and the pressure release cover board that is arranged on cover board mounting bracket；Cover board mounting bracket is equipped with ventilation hole；The bottom for being used for the water-retaining structure that is blocked to ventilation hole, water-retaining structure and ventilation hole horizontal interval and water-retaining structure that extends downwardly is equipped with the top of ventilation hole be less than ventilation hole on the cover board mounting bracket and/or pressure release cover board.Heat during use in cabinet can shed from ventilation hole；When being abnormal inside direct-current switch cabinet, high temperature and high pressure gas wash pressure release cover board open, prevent hypertonia in cabinet.Drip when on direct-current switch cabinet when having, the water-retaining structure on pressure release cover board and/or cover board mounting bracket stops water droplet, prevents water droplet from entering direct-current switch cabinet by the ventilation hole on pressure relief device to cause security incident；Compared with the prior art, the degree of protection higher of mine direct current switchgear, can be suitable for the special occasions such as mine.
Description
Technical field
It the utility model is related to the mine direct current switchgear in switchgear field.
Background technology
Equipment of the mine electric vehicles as large conveying quantity conveying coal, its effect are self-evident.Mine electric vehicles direct current
Tractive power supply system provides direct current driving power supply for mine electric vehicles, is generally located in the chamber of mine.Chamber is in machine
Near car transfer passage, coal dust can be spread in chamber, and the possibility of immersion is occurred at the top of chamber, these are to power switch
The protection of cabinet proposes the requirement of higher.Existing direct-current traction power supply switch cabinet is mainly used in city underground, tramcar
Etc. in indoor environment or box-type substation, its environmental condition is better than mine chamber, not high to requirement of shelter.
The dc circuit breaker used in direct-current switch cabinet causes direct-current switch cabinet height when short circuit, arcing occurs when failure
Indoor temperature raises rapidly pressure, air pressure quickly increases, and need to be that direct-current switch cabinet is pacified for high-temperature gas in hyperbaric chamber is quickly discharged
Fill pressure release passage.Inhomogeneity type hole mainly is opened up in cabinet top in existing pressure release mode, covers simple cover board or compound thereon
Plate of material, realization or the pressure release of automatic or manual；Pressure release cover board completely blocks pressure relief opening；Since direct-current switch cabinet works normally
When, the electrical equipment fever in cabinet, increases the temperature and humidity in direct-current switch cabinet；The gas permeability of existing pressure relief device compared with
Difference, hot gas, moisture in direct-current switch cabinet can not discharge, and easily influence direct-current switch cabinet work.
Have some in existing direct-current switch cabinet and ventilation hole is set on pressure relief device, to solve pressure relief device poor air permeability
The problem of.But in mine direct current switchgear used in the special occasions such as mine, the top ring of direct-current switch cabinet
There is the possibility that leak occurs in border, and the water droplet being dropped on pressure relief device is possible to enter direct-current switch cabinet from ventilation hole, causes to pacify
Full accident.The degree of protection of existing direct-current switch cabinet is relatively low, it is impossible to meets the Anti-drip requirement to direct-current switch cabinet.
Utility model content
The purpose of this utility model is to provide a kind of mine direct current switchgear, exists to solve existing direct-current switch cabinet
Drip and easily enter direct-current switch cabinet from the ventilation hole on pressure relief device, influence asking for mine direct current switchgear safe handling
Topic.
To achieve the above object, the first technical solution of the utility model mine direct current switchgear is：Mine direct current is opened
Closing cabinet includes cabinet and the pressure relief device being arranged on cabinet, and pressure relief device includes cover board mounting bracket and is arranged on cover board mounting bracket
On pressure release cover board；Cover board mounting bracket is equipped with ventilation hole；In the upper of ventilation hole on the cover board mounting bracket and/or pressure release cover board
Side be equipped with extend downwardly be used for the water-retaining structure that is blocked to ventilation hole, water-retaining structure and ventilation hole horizontal interval and water blocking
The bottom of structure is less than ventilation hole.
Second of technical solution of mine direct current switchgear be：According to the first technical solution institute of mine direct current switchgear
The mine direct current switchgear stated, the cover board mounting bracket are frame structure, and frame structure, which has, is used for what is be connected with the cabinet
Horizontal wall and it is vertically arranged in horizontal wall and the vertical wall of L-shaped structure is formed with horizontal wall, pressure release cover board is supported on cover board peace
Top is shelved, the ventilation hole is arranged in vertical wall.
The third technical solution of mine direct current switchgear is：According to second of technical solution institute of mine direct current switchgear
The mine direct current switchgear stated, the side of the pressure release cover board are hinged in the horizontal wall of cover board mounting bracket；Cover board mounting bracket
The upper edge of vertical wall is provided with the supporting walls of fold on the outside of cover board mounting bracket, and supporting walls are equipped with for remote with pressure release cover board
From the cover board connection structure for the side connection that pressure release cover board is hinged side.
4th kind of technical solution of mine direct current switchgear be：According to the third technical solution institute of mine direct current switchgear
The mine direct current switchgear stated, the pressure release cover board are connected by nylon bolt with the cover board connection structure.
5th kind of technical solution of mine direct current switchgear be：According to the second of mine direct current switchgear or the 3rd or the 4th
Mine direct current switchgear described in kind of technical solution, in the horizontal wall of the cover board mounting bracket along horizontal wall length direction at equal intervals
Equipped with the cabinet connecting hole for being connected with the cabinet.
6th kind of technical solution of mine direct current switchgear be：According to the second of mine direct current switchgear or the 3rd or the 4th
Mine direct current switchgear described in kind technical solution, the pressure release cover board stretch out cover board mounting bracket, pressure release cover board in the horizontal direction
Extension be equipped with and be turned over downwards down and turn edge, under the base that turns edge be less than the ventilation hole, the extension of pressure release cover board
And on extension under turn edge to form the water-retaining structure.
7th kind of technical solution of mine direct current switchgear be：According to the 6th of mine direct current switchgear the kind of technical solution institute
The mine direct current switchgear stated, on the pressure release cover board under turn edge and turn edge including turning edge under front side, under rear side, turn edge under left side
With turn edge under right side；The base to turn edge under front side be less than other sides under turn edge and it is close with the horizontal wall of cover board mounting bracket and
Every setting.
8th kind of technical solution of mine direct current switchgear be：According to the second of mine direct current switchgear or the 3rd or the 4th
Mine direct current switchgear described in kind technical solution, the internal face of the vertical wall of the cover board mounting bracket, which is equipped with, supplies dustproof sponge
The sponge backplate of installation, dustproof sponge are folded between sponge backplate and vertical wall, and dustproof sponge is fixed on sponge backplate, sea
Continuous backplate is equipped with heat emission hole for gas to pass through.
9th kind of technical solution of mine direct current switchgear be：According to the 8th of mine direct current switchgear the kind of technical solution institute
The mine direct current switchgear stated, the dustproof sponge are anti-flammability dustproof sponge.
Tenth kind of technical solution of mine direct current switchgear be：According to the first of mine direct current switchgear or second or the 3rd
Or the mine direct current switchgear described in the 4th kind of technical solution, the top of the cabinet are equipped with terminal in the front side of pressure relief device
Room, terminal room include terminal room housing and terminal ceiling lid, and terminal ceiling lid is covered in the top of terminal room housing, terminal room shell
Sealing is formed between the bottom of body and the top of cabinet.
The beneficial effects of the utility model are：Pressure relief device is installed on mine direct current switchgear during use, decompression cover
Plate is covered on cover board mounting bracket；When direct-current switch cabinet works normally, hot gas, moisture in cabinet can shed from ventilation hole；
When being abnormal inside direct-current switch cabinet, high temperature and high pressure gas wash pressure release cover board open, carry out pressure release to direct-current switch cabinet, prevent
The only hypertonia in direct-current switch cabinet.Drip on direct-current switch cabinet when having, on pressure release cover board and/or cover board mounting bracket
Water-retaining structure stops water droplet, prevents water droplet from entering direct-current switch cabinet from ventilation hole and causing security incident；Compared to existing
There is technology, the degree of protection higher of mine direct current switchgear, can be suitable for the special occasions such as mine.
Further, cover board mounting bracket is frame structure, and frame structure has horizontal wall and is vertically set in horizontal wall
Vertical wall, the internal face of vertical wall is equipped with dustproof sponge backplate, and dustproof sponge is folded between vertical wall and sponge backplate,
Dustproof sponge position is fixed, and sponge backplate is equipped with heat emission hole that can be for gas to pass through.Dustproof sponge is to the dust in gas, coal
Dirt is filtered, and is prevented because dust, coal dust enter mine direct current switchgear, and influences the normal work of direct-current switch cabinet.
Brief description of the drawings
Fig. 1 is the structure diagram of the specific embodiment of the mine direct current switchgear of the utility model；
Fig. 2 is left view of the front door of the direct-current switch cabinet in Fig. 1 in open mode；
Fig. 3 is right view of the back door of the direct-current switch cabinet in Fig. 1 in open mode；
Fig. 4 is the stereogram 1 of the terminal room housing in Fig. 1；
Fig. 5 is the stereogram 2 of the terminal room housing in Fig. 1；
Fig. 6 is the structure diagram of the pressure relief device in Fig. 1；
Fig. 7 is the top view of Fig. 6；
Fig. 8 is the front view of Fig. 6；
Fig. 9 is the structure diagram of the cover board mounting bracket in Fig. 6；
Figure 10 is the stereogram of the cover board mounting bracket in Fig. 6.
Embodiment
The embodiment of the utility model is described further below in conjunction with the accompanying drawings.
The specific embodiment of the mine direct current switchgear of the utility model, as shown in Figures 1 to 10, including cabinet 31 and sets
Put front door 32 on cabinet 31, back door 33, terminal room 34, pressure relief device 35；Cabinet 31 is built by C profile；Front door 32
With back door 33 rubber weather strip 36 is pasted close to the side of cabinet 31.Front door 32 includes upper front door 321 and lower front door 322, lower front door
322 are equipped with louvre ventilation hole 323, on back door 33 between the upper and lower every be equipped with louvre ventilation hole 331 and louvre ventilation hole
332；The dustproof sponge 37 of 10mm thickness is added at each louvre ventilation hole respectively.
Terminal room 34 is arranged on the front end at the top of cabinet 31, and terminal room 34 includes terminal room housing 341 and is arranged on terminal
The terminal ceiling lid 342 at the top of room housing 341, terminal ceiling lid 342 can be opened in terminal room housing 341；Terminal room housing
341 bottom forms with the top surface of cabinet 31 and seals.Rear side of the pressure relief device 34 in terminal room 34 is set close to terminal room 34.
Pressure relief device 34 includes cover board mounting bracket 1 and pressure release cover board 2；Cover board mounting bracket 1 is for installation on cabinet 31；Let out
Cover clamp 2 is hinged on cover board mounting bracket 1 by hinge 3；Cover board mounting bracket 1 is frame structure, the central space of frame structure
Form pressure relief opening；Pressure release cover board 2 is used to block pressure relief opening.
The frame structure of cover board mounting bracket 1, frame structure include front baffle 11, afterframe 12, left frame 17 and correct frame
18；The section of each frame is identical, the C-shaped section to be surrounded by horizontal wall 14, vertical wall 15 and supporting walls 16；Wherein, each frame
In the horizontal wall 14 of frame the cabinet connecting hole 13 for being connected with direct-current switch cabinet is interval with along associated frame members length direction.
Pressure release cover board 2 is supported on supporting walls 16, on the supporting walls of left frame 17 and correct frame 18 supporting walls on by
The position of nearly afterframe 12 is respectively equipped with the cover board connection structure connected for pressure release cover board 2, the cover board connection knot in the present embodiment
Structure is the hexagonal riveting nut 5 being fixed on corresponding supporting walls 16；In other embodiments, cover board connection structure can also be by
Threaded hole on supporting walls 16 is formed.
In the vertical wall of front baffle 11 and/or in the vertical wall of afterframe 12 and/or in the vertical wall of left frame 17 15 and/
Or the vertical wall 15 of correct frame 18 is equipped with the ventilation hole that connects inside direct-current switch cabinet, each vertical wall 15 in the present embodiment
On be equipped with ventilation hole 19, ventilation hole 19 it is vertically extending for kidney slot, kidney slot it is close in corresponding vertical wall 15
Corresponding supporting walls 16 are set.When direct-current switch cabinet works, hot gas, moisture in cabinet can be discharged from ventilation hole, prevent direct current from opening
The temperature closed in cabinet is excessive.
Pressure release cover board 2 is square box lid structure, and box lid structure includes the caping 21 of square plate structure, four sides of caping 21
On be respectively equipped with to be turned over downwards down and turn edge 22；Turn edge under each 22 base is below ventilation hole on cover board mounting bracket 1；Its
In, turn edge under the front side of the front side of caping 21 22 length it is longer, turn edge and 22 leaned on the horizontal wall 14 of front baffle 11 under front side
Near and interval setting.
The sponge installed for dustproof sponge 4 is respectively equipped with the internal face of the vertical wall 15 of each frame of cover board mounting bracket 1
Backplate 6, each sponge backplate 6 are connected with associated frame members spot welding respectively；Dustproof sponge 4 is folded in sponge backplate 6 and corresponding frame
Between, sponge backplate 6 is equipped with heat emission hole for gas to pass through；The position of dustproof sponge 4 is fixed, and prevents direct-current switch cabinet failure
When, dustproof sponge 4 is gone out by gas；Dustproof sponge in the present embodiment is anti-flammability dustproof sponge.
In use, cover board mounting bracket 1 to be installed to the top of cabinet 31 with tapping screw, tapping screw is installed on each frame
On cabinet connecting hole 13 in, the interval between the pressure release passage at the top of each frame and cabinet 31 is uniform, gas when avoiding failure
Pressure is excessive to be washed out pressure relief device entirety from cabinet top；Pressure release cover board 2 is fixed on cover board mounting bracket 1 with nylon bolt 9.
When mine direct current switchgear works normally, the hot gas in direct-current switch cabinet can be from leading on cover board mounting bracket 1
Air holes is discharged, and dustproof sponge prevents the dust in external environment condition from entering direct-current switch cabinet, ensures the normal work of direct-current switch cabinet.
When being abnormal in direct-current switch cabinet, the high temperature and high pressure gas in direct-current switch cabinet impact pressure release cover board 2, nylon spiral shell
Bolt 9 is thrust, and pressure release cover board 2 is opened, high temperature and high pressure gas discharge, prevent because the pressure in direct-current switch cabinet is excessive and caused by pacify
Full accident.
Drip when on mine direct current switchgear when having, water is dropped on pressure release cover board 2, since pressure release cover board 2 has
Turn edge for being blocked down to ventilation hole, water droplet can not be directly entered or be splashed to direct-current switch cabinet by ventilation hole
In, ensure the normal work of direct-current switch cabinet.
In other embodiments, water-retaining structure will can also be arranged at the top of cover board mounting bracket, at this time it is also possible to will let out
Cover clamp is arranged to slab construction, and the edge of pressure release cover board is ridden on the top surface of water-retaining structure.In addition, water-retaining structure can also be set
Other structures form is set to, the inclined plane of extension is such as tilted down or tilts down the arcwall face of extension；When cover board mounting bracket
During with being equipped with waterproof construction on pressure release cover board, the water-retaining structure on cover board mounting bracket can also be with the water blocking knot on pressure release cover board
Structure uses multi-form.
Claims (10)
1. mine direct current switchgear, including cabinet and the pressure relief device that is arranged on cabinet, it is characterised in that：Pressure relief device includes
Cover board mounting bracket and the pressure release cover board being arranged on cover board mounting bracket；Cover board mounting bracket is equipped with ventilation hole；The cover board installation
On frame and/or pressure release cover board in the top of ventilation hole be equipped with extend downwardly for the water-retaining structure that is blocked to ventilation hole,
The bottom of water-retaining structure and ventilation hole horizontal interval and water-retaining structure is less than ventilation hole.
2. mine direct current switchgear according to claim 1, it is characterised in that：The cover board mounting bracket is frame structure,
Frame structure has the horizontal wall for being used for being connected with the cabinet and is vertically arranged in horizontal wall and forms L-shaped knot with horizontal wall
The vertical wall of structure, pressure release cover board are supported on above cover board mounting bracket, and the ventilation hole is arranged in vertical wall.
3. mine direct current switchgear according to claim 2, it is characterised in that：The side of the pressure release cover board is hinged on lid
In the horizontal wall of board mounting stand；The upper edge of the vertical wall of cover board mounting bracket is provided with the support of fold on the outside of cover board mounting bracket
Wall, supporting walls are equipped with the cover board connection structure for being used for being hinged the side of side with the remote pressure release cover board of pressure release cover board and be connected.
4. mine direct current switchgear according to claim 3, it is characterised in that：The pressure release cover board by nylon bolt with
The cover board connection structure connection.
5. the mine direct current switchgear according to Claims 2 or 3 or 4, it is characterised in that：The level of the cover board mounting bracket
It is equipped with the cabinet connecting hole for being used for being connected with the cabinet on wall at equal intervals along horizontal wall length direction.
6. the mine direct current switchgear according to Claims 2 or 3 or 4, it is characterised in that：Pressure release cover board edge level side
To cover board mounting bracket is stretched out, the extension of pressure release cover board is equipped with to be turned over downwards down and turns edge, under the base that turns edge less than described
Ventilation hole, on the extension and extension of pressure release cover board under turn edge to form the water-retaining structure.
7. mine direct current switchgear according to claim 6, it is characterised in that：Turn edge under on the pressure release cover board including
Turn edge under front side, turn edge under rear side, turning edge under left side and right side under turn edge；The base to turn edge under front side, which is less than under other sides, to be turned over
Edge and and interval setting close with the horizontal wall of cover board mounting bracket.
8. the mine direct current switchgear according to Claims 2 or 3 or 4, it is characterised in that：The cover board mounting bracket it is vertical
The internal face of wall is equipped with the sponge backplate for dustproof sponge installation, and dustproof sponge is folded between sponge backplate and vertical wall,
Dustproof sponge is fixed on sponge backplate, and sponge backplate is equipped with heat emission hole for gas to pass through.
9. mine direct current switchgear according to claim 8, it is characterised in that：The dustproof sponge is the anti-this world of anti-flammability
It is continuous.
10. according to the mine direct current switchgear described in claim 1 or 2 or 3 or 4, it is characterised in that：The top of the cabinet in
The front side of pressure relief device is equipped with terminal room, and terminal room includes terminal room housing and terminal ceiling lid, and terminal ceiling lid, which covers, to be held
The top of seed cell's housing, forms sealing between the bottom of terminal room housing and the top of cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720899462.0U CN207265497U (en) | 2017-07-24 | 2017-07-24 | Mine direct current switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720899462.0U CN207265497U (en) | 2017-07-24 | 2017-07-24 | Mine direct current switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207265497U true CN207265497U (en) | 2018-04-20 |
Family
ID=61927217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720899462.0U Active CN207265497U (en) | 2017-07-24 | 2017-07-24 | Mine direct current switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207265497U (en) |
-
2017
- 2017-07-24 CN CN201720899462.0U patent/CN207265497U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |