CN208571257U - A kind of insulation assembly for direct-current switch cabinet - Google Patents
A kind of insulation assembly for direct-current switch cabinet Download PDFInfo
- Publication number
- CN208571257U CN208571257U CN201820850251.2U CN201820850251U CN208571257U CN 208571257 U CN208571257 U CN 208571257U CN 201820850251 U CN201820850251 U CN 201820850251U CN 208571257 U CN208571257 U CN 208571257U
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- Prior art keywords
- insulation
- switch cabinet
- direct
- insulating end
- current switch
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Abstract
The utility model belongs to Transit Equipment technical field, discloses a kind of insulation assembly for direct-current switch cabinet, comprising: insulation board is placed between dc switch cabinet floor and basic channel steel；And insulated bolt, its corresponding mounting hole on dc switch cabinet floor, insulation board and basic channel steel, including bolt, nut and the insulation sleeve group being sheathed on bolt, which includes the first insulating end cylinder and the second insulating end cylinder for being arranged oppositely and being mutually fitted into.The beneficial effects of the utility model include: that fixing bolt insulation is abundant, and creepage distance is long；Stable connection between insulation board and it is close, and piece is few, effectively reduces moisture infiltration.
Description
Technical field
The utility model relates to Transit Equipment technical fields, more particularly, to a kind of insulation for direct-current switch cabinet
Component.
Background technique
In view of structure of the subway particularity and direct-current traction power supply the characteristics of, be reduce stray electrical current to subway tunnel
The corrosion of structural metal (such as reinforcing bar and built-in metal pipeline) even more generates potential difference in order to prevent and causes between anode and ground
Security risk, the direct-current switch cabinet in metro traction electric substation are all made of insulation against ground installation.It is bad easily to be insulated effect
Frame protection is malfunctioned, a wide range of power outages are caused, seriously affects traffic safety.Following defect exists in the prior art:
1, cabinet body fixing bolt insulation mode is simple and crude, may cause creepage distance insufficient due to installation error；
2, piece is excessive between insulation board, may be permeated by piece when cable shaft air humidity is larger, causes cabinet body exhausted
Edge reduces；
3, cabinet body and basic channel steel compactness are inadequate, may cause moisture from gap penetration, reduce cabinet body insulation.
Utility model content
The purpose of the utility model is to overcome above-mentioned technical deficiencies, propose a kind of insulation group for direct-current switch cabinet
Part solves the technical problem that direct-current switch cabinet insulation is insufficient in the prior art.
To reach above-mentioned technical purpose, the technical solution of the utility model provides a kind of insulation group for direct-current switch cabinet
Part, comprising:
Insulation board is placed between dc switch cabinet floor and basic channel steel；And
Insulated bolt, the corresponding mounting hole on dc switch cabinet floor, insulation board and basic channel steel, including spiral shell
Bolt, nut and the insulation sleeve group being sheathed on bolt, the insulation sleeve group include the first insulating end for being arranged oppositely and being mutually fitted into
Cylinder and the second insulating end cylinder.
Compared with prior art, the beneficial effects of the utility model include: that fixing bolt insulation is abundant, and creepage distance is long；
Stable connection between insulation board and it is close, and piece is few, effectively reduces moisture infiltration.
Detailed description of the invention
Fig. 1 is the assembling schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of insulated bolt；
Fig. 3 is the structural schematic diagram of insulation board；
Fig. 4 is enlarged drawing at A in Fig. 3.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
The utility model provides a kind of insulation assembly for direct-current switch cabinet, as shown in Figure 1, comprising:
Insulation board 1 is placed between dc switch cabinet floor 3 and basic channel steel 4；And
Insulated bolt 2, the corresponding mounting hole 5 on dc switch cabinet floor 3, insulation board 1 and basic channel steel 4, such as
Shown in Fig. 1 and Fig. 2, including bolt 21, nut 22 and the insulation sleeve group 23 being sheathed on bolt, which includes opposite direction
The the first insulating end cylinder 231 and the second insulating end cylinder 232 for being arranged and being mutually fitted into.
The shape of insulation sleeve group 23 has extreme influence to insulation performance, in the present solution, insulation sleeve group 23 is designed as to bolt
21 full seal sleeve structures, the gap of overall isolation bolt and cabinet body increase creepage distance, are greatly improved integral insulation
Energy.
Preferably, the first insulating end cylinder 231 and the second insulating end cylinder 232 include integrally formed end
(231a and 232a) and canister portion (231b and 232b), wherein the canister portion of an insulating end cylinder is sheathed on outside the canister portion of another insulating end cylinder
Portion.As shown in figure 1, the first insulating end cylinder 231 protrudes into mounting hole 5 by dc switch cabinet floor 3, and end 231a pushes down dc switch
Cabinet floor 3, canister portion 231b are sheathed on bolt 21；Second insulating end cylinder 232 protrudes into mounting hole 5, end by basic channel steel 4
232a pushes down basic channel steel 4, and canister portion 232b is sheathed on the canister portion 231b of the first insulating end cylinder 231.Certainly, the first insulating end
The position of cylinder 231 and the second insulating end cylinder 232 can be interchanged, and their canister portion is arranged positional relationship and also can be interchanged.
Preferably, the first insulating end cylinder 231 and the second insulating end cylinder 232 are all made of polytetrafluoroethylene (PTFE) material,
While guaranteeing insulation performance, water resistance is provided, direct-current switch cabinet bottom moisture is avoided to influence.
Preferably, the insulation sleeve group 23 further includes being sheathed on the first insulating end cylinder 231 and second respectively absolutely
The rubber washer 233 of the canister portion (231b and 232b) of acies cylinder 232.Rubber washer 233 increases stability when bolt is fixed
And compactness, and guarantee insulation effect.
Preferably, the bolt 21 and nut 22 are all made of carbon steel material, such as 8.8 grades of full thread carbon steel bolts,
Dc switch cabinet floor 3, insulation board 1, basic channel steel 4 are passed through when installation, and switchgear and basis are fixed.
Preferably, the insulation board 1 has muti-piece, mutually splicing is placed on dc switch cabinet floor 3 and foundation trench
Between steel 4, the end of every piece of insulation board 1 has the interconnecting piece 11 being interlocked with adjacent another piece of insulation board, such as Fig. 3 and Fig. 4 institute
Show.Splice point can take step overlapping overlapped mode, and splice point should avoid the connection gap between two direct-current switch cabinets,
To reduce moisture infiltration.
Preferably, viscous by AB glue between every piece of insulation board 1 and the interconnecting piece 11 of adjacent another piece of insulation board
Patch, further enhances stability.
Preferably, the insulation board 1 of every group of dc switch cabinet floor 3 setting is no more than 3 pieces, i.e., increase as far as possible
The area of big monolithic insulation board 1, reduces splicing to the greatest extent, improves insulating properties.
Specific embodiment of the present utility model described above does not constitute the restriction to scope of protection of the utility model.
Any other various changes and modifications that any technical concept according to the present utility model is made should be included in practical
In novel scope of protection of the claims.
Claims (8)
1. a kind of insulation assembly for direct-current switch cabinet, characterized by comprising:
Insulation board is placed between dc switch cabinet floor and basic channel steel；And
Insulated bolt, the corresponding mounting hole on dc switch cabinet floor, insulation board and basic channel steel, including bolt, spiral shell
Insulation sleeve group that is female and being sheathed on bolt, the insulation sleeve group include being arranged oppositely and the first mutually chimeric insulating end cylinder and the
Two insulating end cylinders.
2. a kind of insulation assembly for direct-current switch cabinet according to claim 1, it is characterised in that: first insulation
End cylinder and the second insulating end cylinder include integrally formed end and canister portion, wherein the canister portion of an insulating end cylinder be sheathed on it is another absolutely
Outside the canister portion of acies cylinder.
3. a kind of insulation assembly for direct-current switch cabinet according to claim 1 or 2, it is characterised in that: described first
Insulating end cylinder and the second insulating end cylinder are all made of polytetrafluoroethylene (PTFE) material.
4. a kind of insulation assembly for direct-current switch cabinet according to claim 2, it is characterised in that: the insulation sleeve group
It further include the rubber washer for being sheathed on the canister portion of the first insulating end cylinder and the second insulating end cylinder respectively.
5. a kind of insulation assembly for direct-current switch cabinet according to claim 1, it is characterised in that: the bolt and spiral shell
Mother is all made of carbon steel material.
6. a kind of insulation assembly for direct-current switch cabinet according to claim 1, it is characterised in that: the insulation board tool
Have muti-piece, mutually splicing is placed between dc switch cabinet floor and basic channel steel, the end of every piece of insulation board have with it is adjacent
The interconnecting piece that another piece of insulation board is interlocked.
7. a kind of insulation assembly for direct-current switch cabinet according to claim 6, it is characterised in that: every piece of insulation
It is pasted between plate and the interconnecting piece of adjacent another piece of insulation board by AB glue.
8. a kind of insulation assembly for direct-current switch cabinet according to claim 6 or 7, it is characterised in that: every group of direct current
The insulation board of bottom plate of switch cabinet setting is no more than 3 pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820850251.2U CN208571257U (en) | 2018-06-04 | 2018-06-04 | A kind of insulation assembly for direct-current switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820850251.2U CN208571257U (en) | 2018-06-04 | 2018-06-04 | A kind of insulation assembly for direct-current switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208571257U true CN208571257U (en) | 2019-03-01 |
Family
ID=65485358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820850251.2U Active CN208571257U (en) | 2018-06-04 | 2018-06-04 | A kind of insulation assembly for direct-current switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208571257U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112489902A (en) * | 2020-10-27 | 2021-03-12 | 中国人民解放军海军工程大学 | Multifunctional insulating component for power electronic device and manufacturing method thereof |
-
2018
- 2018-06-04 CN CN201820850251.2U patent/CN208571257U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112489902A (en) * | 2020-10-27 | 2021-03-12 | 中国人民解放军海军工程大学 | Multifunctional insulating component for power electronic device and manufacturing method thereof |
| CN112489902B (en) * | 2020-10-27 | 2022-06-07 | 中国人民解放军海军工程大学 | Multifunctional insulating component for power electronic device and manufacturing method thereof |
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