CN108988164A - A kind of EMU overhead high-voltage equipment box top seal structure - Google Patents
A kind of EMU overhead high-voltage equipment box top seal structure Download PDFInfo
- Publication number
- CN108988164A CN108988164A CN201811067939.4A CN201811067939A CN108988164A CN 108988164 A CN108988164 A CN 108988164A CN 201811067939 A CN201811067939 A CN 201811067939A CN 108988164 A CN108988164 A CN 108988164A
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- China
- Prior art keywords
- cabinet
- sealing
- top cover
- equipment box
- voltage equipment
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- 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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Classifications
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- 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
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gasket Seals (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention discloses a kind of EMU overhead high-voltage equipment box top seal structures, high-voltage equipment box includes cabinet, top cover is mounted on above cabinet, double-layer sealing structure is used between top cover and cabinet, sealing rubber strip is bonded on cabinet and top cover, sealing rubber strip includes first of sealing strip and second sealing strip, nearby part is step structure to cap edge, it from outside to inside include first order ladder and the second ladder higher than first order ladder, first of sealing strip is between first order ladder and cabinet, second sealing strip is between second level ladder and cabinet.Sealing structure of the present invention is stablized, and in vehicle high-speed operation, outside water molecule will not enter in cabinet.Cabinet completely cuts off external environment, ensure that electrical component works normally in cabinet, while guaranteeing rigidity, realizes the requirement of light-weight design to greatest extent, is able to satisfy the requirement of high-speed EMUs operation.
Description
Technical field
The present invention relates to technical field of rail traffic, refer in particular to a kind of EMU overhead high-voltage equipment box top seal structure.
Background technique
In view of the limitation of vehicle body of railway vehicle bottom space, more and more high-voltage equipment boxes all use overhead structure,
That is it is arranged in car body top.Some problems are also brought in this way, and general high-voltage equipment box is using cabinet and top
The structure of lid, top cover are fastened by bolts on cabinet.Existing structure top cover is after bolt fastening is complete at present, product fastening part
There is buckling deformation with non-fastening part, causes the precompressed amount of non-fastening position sealing strip to reduce, the sealing of top cover and cabinet is bad
Lead to water inlet in cabinet, causes poorly sealed problem.The sealing structure that existing structure uses only has single layer sealing, in vehicle height
When speed operation, outside water molecule is possible under high-speed flow enter in cabinet from single layer sealing off gap, influences electric in cabinet
Gas equipment works normally, or even brings operation risk.Meanwhile with vehicle lightweight requirements, need electric box weight as far as possible
Mitigate；In addition, the maintenance of car body top must allow electric box top to be able to bear the weight of maximum 4 human bodies, need enough
Intensity.In view of this, it is necessary to design a kind of sealing structure stabilization, there is sufficient intensity and light-weighted cap structure to expire
The requirement of sufficient high-speed EMUs operation, so that electrical component works normally in cabinet isolation external environment, guard box body.
In the prior art, a kind of high-voltage equipment box is disclosed application No. is the utility model of CN201720094971.6 to fix
Case lid, case lid includes top cover and frame, and the lid that a rectangle is formed on top cover closes region, top described in the utility model
Lid is box portion in fact, and what is introduced is the fixation device on frame, and top cover and sealing structure are not described.Shen
Please number for CN201510109052.7 a kind of high-tension apparatus box structure of disclosure of the invention, including cabinet and top cover, and top cover
Between cabinet using be tightly connected, but do not mention top cover specific structure and specific sealing structure.
Summary of the invention
It is an object of the present invention to provide a kind of EMU overhead high-voltage equipment box top seal structures, can solve sealing
Not tight problem.
The technical scheme is that a kind of EMU overhead high-voltage equipment box top seal structure, high-tension apparatus luggage
Cabinet is included, top cover is mounted on above cabinet, and double-layer sealing structure is used between top cover and cabinet, is bonded on cabinet and top cover
There is sealing rubber strip, sealing rubber strip includes first of sealing strip and second sealing strip；Nearby part is ladder to cap edge
Shape structure, includes first order ladder and the second ladder higher than first order ladder from outside to inside, and first of sealing strip is located at first
Between grade ladder and cabinet, second sealing strip is between second level ladder and cabinet.
Top cover edge is additionally provided with knob.
The upper end of first of sealing strip is bonded on top cover, and the lower end of second sealing strip is bonded on cabinet, and first
The double-layer sealing structure of sealing strip and second sealing strip composition is upper and lower sawtooth occlusion structure.
Top cover and cabinet are bolted connection, and top cover edge is pre-buried or is bonded with metal reinforcement using structure glue
Metal plate.
First of sealing strip is located at top cover first order stepped portion in the following, second sealing strip is located at top cover second level ladder
Part is in the following, the metal being equipped on the cabinet beside sealing rubber strip for limiting deformation direction after sealing rubber strip compresses is convex
It rises, side is equipped with the first metal bump on the inside of first of sealing strip, and side is equipped with the second metal on the inside of second sealing strip
Protrusion.
Metal bump top surface is 2-5mm at a distance from top cover bottom surface at its surface.
Sealing rubber strip height is greater than the clearance distance between the top cover and cabinet at sealing rubber strip place, and first close
The height H1 of strip of paper used for sealing is greater than the distance H3 among top cover first order stepped portion bottom surface and top of the box, the height of second sealing strip
Spend the distance H4 that H2 is greater than among top cover second level stepped portion bottom surface and top of the box.
H1 >=1.3 times H3, H2 >=1.3 times H4.
Top cover includes main part, and the structure of closure body part is using upper layer glass reinforced plastic+centre foam core+lower layer
The sandwich structure of glass reinforced plastic；For the sandwich structure upper layer glass reinforced plastic with a thickness of 3mm, intermediate foam core uses PET foam, thick
Degree is 15mm, and lower layer's glass reinforced plastic is with a thickness of 3mm.
Top cover edge is equipped with installation interface, and interface position is installed in top cover edge and sealing area uses solid knot
Structure, solid construction are the structure using pure glass reinforced plastic, thickness >=10mm of solid construction part.
Cap edge of the invention is reinforced with sheet metal, it is therefore prevented that the sealing station deformation of product after bolt fastening,
Guarantee sealing effect, sealing structure uses upper and lower sawtooth occlusion structure, the dual effect that ensure that sealing.Closure body material
Using the sandwich composite structure of foam core, sealing structure is stablized, and in vehicle high-speed operation, outside water molecule will not
Into in cabinet.Cabinet completely cuts off external environment, ensure that electrical component works normally in cabinet, while guaranteeing rigidity, most
The requirement for realizing light-weight design of limits is able to satisfy the requirement of high-speed EMUs operation.Cap edge uses solid knot
Structure ensure that the intensity of product installation to greatest extent.Fairshaped knob is installed, the disassembly for facilitating product is removed on top cover
Fortune, while vehicle running resistance can be effectively reduced.
Detailed description of the invention
Fig. 1 is schematic front view of the present invention；
Fig. 2 is schematic top plan view of the present invention；
Fig. 3 is the schematic cross-sectional view of the line A-A along Fig. 2；
Fig. 4 is the partial enlarged view in Fig. 3 at I；
Fig. 5 is the partial enlarged view (closure body some materials structural schematic diagram) in Fig. 3 at II；
In figure: 1 --- cabinet, 2 --- top cover, 3 --- reinforcement metal plate, 4 --- knob, 5 --- upper layer glass reinforced plastic, 6 ---
PET foam, 7 --- lower layer's glass reinforced plastic, 21 --- first of sealing strip, 22 --- second sealing strip, 23 --- the first metal
Protrusion, 24 --- the second metal bump；H3 --- the bottom surface of top cover first order stepped portion and the distance among top of the box,
H4 --- the bottom surface of top cover second level stepped portion and the distance among top of the box, H5 --- metal bump top surface and its just on
The distance of top cover bottom surface at side.
Specific embodiment
Please refer to Fig. 1 to Fig. 5, a kind of EMU overhead high-voltage equipment box top seal structure, between top cover 2 and cabinet 1
Using double-layer sealing structure, there are metal reinforcement metal plate 3 and streamlined knob 4 in 2 edge of top cover, on cabinet 1 and top cover 2
It is bonded with sealing rubber strip, sealing rubber strip includes first of sealing strip 21 and second sealing strip 22, first of sealing strip 21
It is bonded on top cover, second sealing strip 22 is bonded on cabinet.
Together with top cover 2 is fastened by bolts with cabinet 1, high-voltage equipment box top cover edge is added using sheet metal
By force, 2 edge of top cover is pre-buried or is bonded with metal reinforcement metal plate 3 using structure glue, after avoiding bolt fastening, non-fastening position
The problem of with the appearance wave deformation of fastening position, guarantees that sealing strip precompressed amount is consistent, to guarantee the effect of sealing.It is pushing up
When lid 2 and cabinet 1 fasten, for 2 fastening position of top cover due to there is metal to reinforce 3, fastening position is not in that pure glass reinforced plastic is similar
Buckling deformation, that is to say, that thickness of the pure glass fibre reinforced plastic structure between bolt fastening position, two components can be significantly less than non-bolt
The thickness of fastening position forms wavy warpage, causes sealing strip to be in different pre-compressed states, causes poorly sealed.
And the design can greatly reduce buckling deformation, have better seal effect.
As shown in figure 4, forming bilayer using first of sealing strip 21 and second sealing strip 22 between top cover 2 and cabinet 1
Sealing structure, after first of sealing strip 21 fails, second sealing strip 22 is still able to achieve sealing function, guarantees the effect of sealing
Fruit.In addition, in train high-speed cruising, such double-layer sealing structure more can prevent moisture content from entering under high-speed flow pressure
In cabinet.
As shown in figure 4, first of sealing strip 21 and top cover 2 bond, second sealing strip 22 and cabinet 1 are bonded, double-deck close
Envelope layout is in upper and lower sawtooth occlusion structure, and entire sealing is more comprehensively closer, more can guarantee the effect of sealing.
As shown in figure 4, the entire sealing station of top cover 2 (part near cap edge) structural section shape is stepped, top
Lid adjacent edges part includes second level ladder, and for first order ladder in the outer part lower than second level ladder in the inner part, first close
Strip of paper used for sealing is located at top cover first order stepped portion in the following, second sealing strip is located at top cover second level stepped portion in the following, such
Structure is that double-layer seal has reserved space, while stair-stepping shape, so that two sealings is had a difference in height, i.e., first close
21 height of strip of paper used for sealing is lower than the height of second sealing strip 22, and such difference in height forms a potential energy difference, and moisture content is more difficult to enter
Into cabinet, entire sealing forms a difference of height, to guarantee the effect of sealing.
As shown in figure 4, increasing beside sealing rubber strip has metal bump, the compressed deformation direction of sealing strip is limited,
Guarantee sealing effect.There is the first metal bump 23 beside first of 21 inside of sealing strip, by 22 inside of second sealing strip
While there is the second metal bump 24, these metal bumps can limit the compressed deformation direction of rubber weather strip, make sealing strip towards sky
Between narrow side deformation, deformed rubber can be crowded with small space, make entirely to seal more reliable.
As shown in figure 4, the height of the first metal bump 23 and the second metal bump 24 is respectively lower than top cover first order ladder
With second level ladder mounting height design size, difference H5 be 2-5mm(i.e.: H5 be metal bump top surface and its right above at
The distance of top cover bottom surface), it after guaranteeing that top cover 2 is installed, will not be withstood, guarantee by the first metal bump 23 and the second metal bump 24
Rubber weather strip can be compressed to reasonable height, prevent seal failure.
As shown in figure 4, gap design height of each sealing rubber strip height > at this between top cover and cabinet, first
The length of first of sealing strip of height H1(of sealing strip 21 in vertical direction) it is greater than the design height among top cover 2 and cabinet 1
The bottom surface and the distance among top of the box that degree H3(H3 refers to top cover first order stepped portion), the height H2 of second sealing strip 22
The design height H4(H4 that (length of second sealing strip in vertical direction) is greater than among top cover 2 and cabinet 1 refers to top cover second
The bottom surface of grade stepped portion and the distance among top of the box), it is more preferred to H1 >=1.3 times H3, H2 >=1.3 times H4.
As shown in figure 5, the main part of top cover 2 uses upper layer glass reinforced plastic+centre foam core+lower layer's glass reinforced plastic high score
Sub- composite material sandwich structure, can be greatly improved the rigidity of product structure in this way, both can guarantee the rigidity of structure of top cover 2,
The weight of top cover 2 can be reduced as far as possible again, realize lightweight requirements.The sandwich structure upper layer glass reinforced plastic 5 with a thickness of 3mm, in
Between foam core use PET foam 6, with a thickness of 15mm, lower layer's glass reinforced plastic 7 is with a thickness of 3mm.
As shown in figure 4,2 edge of top cover installation interface position and sealing area use solid construction, that is, use pure glass
Glass steel, can guarantee the mounting structure intensity of product to greatest extent in this way, and after bolt fastening, product edge does not crack, also more
It is not easy buckling deformation, improves sealing effect.Thickness >=10mm of solid construction part.
In addition, being equipped with streamlined knob in high-voltage equipment box top cover edge position, it can be convenient overhauling in this way
When, the disassembly of top cover is carried；The position of knob is consistent with the traffic direction of vehicle simultaneously, can reduce drawing to greatest extent
The resistance that hand runs vehicle.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., is all included in the scope of protection of the present invention.
Claims (10)
1. a kind of EMU overhead high-voltage equipment box top seal structure, high-voltage equipment box includes cabinet, and top cover is mounted on cabinet
Above, characterized in that use double-layer sealing structure between top cover and cabinet, be bonded with seal rubber on cabinet and top cover
Item, sealing rubber strip include first of sealing strip and second sealing strip；Nearby part is step structure to cap edge, from outer
To interior including first order ladder and the second ladder higher than first order ladder, first of sealing strip is located at first order ladder and cabinet
Between, second sealing strip is between second level ladder and cabinet.
2. EMU overhead high-voltage equipment box top seal structure according to claim 1, characterized in that top cover surrounding
Edge is additionally provided with knob.
3. EMU overhead high-voltage equipment box top seal structure according to claim 1, characterized in that first of sealing
The upper end of item is bonded on top cover, and the lower end of second sealing strip is bonded on cabinet, first of sealing strip and second sealing
The double-layer sealing structure of item composition is upper and lower sawtooth occlusion structure.
4. EMU overhead high-voltage equipment box top seal structure according to claim 1, characterized in that top cover and cabinet
It is bolted connection, top cover edge is pre-buried or is bonded with metal reinforcement metal plate using structure glue.
5. EMU overhead high-voltage equipment box top seal structure according to claim 1, characterized in that first of sealing
Item is located at top cover first order stepped portion in the following, second sealing strip is located at top cover second level stepped portion in the following, in sealing rubber
Cabinet beside adhesive tape is equipped with the metal bump for limiting deformation direction after sealing rubber strip compresses, in first of sealing strip
The first metal bump is equipped with beside inside, side is equipped with the second metal bump on the inside of second sealing strip.
6. EMU overhead high-voltage equipment box top seal structure according to claim 5, characterized in that metal bump top
Face is 2-5mm at a distance from top cover bottom surface at its surface.
7. EMU overhead high-voltage equipment box top seal structure according to claim 5, characterized in that sealing rubber strip
Height is greater than the clearance distance between the top cover and cabinet at sealing rubber strip place, and the height H1 of first of sealing strip is greater than top
The height H2 of distance H3 among lid first order stepped portion bottom surface and top of the box, second sealing strip are greater than the top cover second level
Distance H4 among stepped portion bottom surface and top of the box.
8. EMU overhead high-voltage equipment box top seal structure according to claim 7, characterized in that H1 >=1.3 times
H3, H2 >=1.3 times H4.
9. EMU overhead high-voltage equipment box top seal structure according to claim 1, characterized in that top cover includes master
Body portion, the structure of closure body part are using upper layer glass reinforced plastic+centre foam core+lower layer's glass reinforced plastic sandwich knot
Structure；The sandwich structure upper layer glass reinforced plastic is with a thickness of 3mm, and intermediate foam core uses PET foam, with a thickness of 15mm, lower layer's glass
Glass steel is with a thickness of 3mm.
10. EMU overhead high-voltage equipment box top seal structure according to claim 1, characterized in that top cover surrounding
Edge is equipped with installation interface, and interface position is installed in top cover edge and sealing area uses solid construction, and solid construction is to adopt
With the structure of pure glass reinforced plastic, thickness >=10mm of solid construction part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811067939.4A CN108988164B (en) | 2018-09-13 | 2018-09-13 | Sealing structure for top cover of overhead high-voltage equipment box of motor train unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811067939.4A CN108988164B (en) | 2018-09-13 | 2018-09-13 | Sealing structure for top cover of overhead high-voltage equipment box of motor train unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108988164A true CN108988164A (en) | 2018-12-11 |
| CN108988164B CN108988164B (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811067939.4A Active CN108988164B (en) | 2018-09-13 | 2018-09-13 | Sealing structure for top cover of overhead high-voltage equipment box of motor train unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110752522A (en) * | 2019-10-22 | 2020-02-04 | 株洲时代新材料科技股份有限公司 | Motor train unit overhead high-voltage equipment box top cover sealing structure and method |
| CN112202059A (en) * | 2020-10-23 | 2021-01-08 | 南京大全电气有限公司 | Waterproof type exchanges low-voltage switchgear |
| CN114770976A (en) * | 2022-04-25 | 2022-07-22 | 中车青岛四方车辆研究所有限公司 | High-pressure tank cover, high-pressure tank cover manufacturing method and high-pressure tank |
| CN115003091A (en) * | 2022-06-20 | 2022-09-02 | 中车青岛四方车辆研究所有限公司 | Sealing structure of equipment box on top of railway vehicle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110752522A (en) * | 2019-10-22 | 2020-02-04 | 株洲时代新材料科技股份有限公司 | Motor train unit overhead high-voltage equipment box top cover sealing structure and method |
| CN112202059A (en) * | 2020-10-23 | 2021-01-08 | 南京大全电气有限公司 | Waterproof type exchanges low-voltage switchgear |
| CN114770976A (en) * | 2022-04-25 | 2022-07-22 | 中车青岛四方车辆研究所有限公司 | High-pressure tank cover, high-pressure tank cover manufacturing method and high-pressure tank |
| CN115003091A (en) * | 2022-06-20 | 2022-09-02 | 中车青岛四方车辆研究所有限公司 | Sealing structure of equipment box on top of railway vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108988164B (en) | 2020-11-10 |
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