CN207743613U - A kind of high current metal-enclosed switchgear handcart cell structure - Google Patents

A kind of high current metal-enclosed switchgear handcart cell structure Download PDF

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Publication number
CN207743613U
CN207743613U CN201820154794.0U CN201820154794U CN207743613U CN 207743613 U CN207743613 U CN 207743613U CN 201820154794 U CN201820154794 U CN 201820154794U CN 207743613 U CN207743613 U CN 207743613U
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China
Prior art keywords
arcing
partition board
air
plate
high current
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CN201820154794.0U
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Inventor
骆祥华
牟洪斌
高海峰
许金亮
朱文鹏
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Qingdao Tgood Electric Co Ltd
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Qingdao Tgood Electric Co Ltd
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Abstract

The utility model discloses a kind of high current metal-enclosed switchgear handcart cell structures, including door-plate, middle partition board, middle upper spacer, contact box mounting plate, middle lower clapboard, head cover, preceding sealing plate, pretectum and side plate, it is equipped with air-cooled structure on the downside of the middle partition board, the air-cooled structure is equipped with air inlet, the head cover is equipped with air outlet, middle and upper part is equipped with closure plate in the handcart room, and corresponding position vertical with the air outlet on head cover is respectively equipped with ventilation hole on middle partition board and closure plate.By the design of independent air-cooled structure and pressure relief, the heat in space is made rapidly to be discharged in time, arcing carries out pressure release when occurring.

Description

A kind of high current metal-enclosed switchgear handcart cell structure
Technical field
The utility model belongs to switchgear technical field, more particularly to a kind of high current metal-enclosed switchgear handcart room Structure.
Background technology
When metal-enclosed type switchgear is run, because cabinet internal heat generation component is relatively more, temperature liter is excessively high to cause electric appliance Mechanical performance and electric property decline, and finally result in the job failure of High-Voltage Electrical Appliances, or even cause major accident.In order to ensure height Piezoelectricity device safe operation within the length of service, it is necessary to temperature in cabinet be risen into control within the permission temperature as defined in standard, switched Design when cabinet designs it is necessary to consider heat dissipation with divulge information.However for aeration structure design, have natural air cooled and forced Air-cooled two kinds of structure designs.It is natural air cooled to need larger heat-dissipating space, when heating element power is larger, limited in cabinet volume It can not rapid cooling in the case of system;Forced air cooling can fast and effeciently be radiated using rational air duct and wind turbine, make hair Hot equipment keeps the operation that normally works.
For metal-enclosed switchgear, there are many heat generating components in switchgear, such as busbar junction, breaker Line end, contact etc. are passed in and out, through experimental and theoretical analysis, since handcart room heat-dissipating space is relatively small, and time of vacuum circuit breaker Road resistance value is larger, and the resistance loss of generation is big, therefore handcart room medium temperature liter is especially prominent, such as interior in a limited space to cannot get soon Speed effectively radiates, and temperature can be caused to rise exceeded, directly affect the safe and stable operation of equipment.It is designed in universal cabinet body structure In, it is air inlet that heat dissipation ventilation hole all can be only held on middle partition board, and it is air outlet, hand that heat dissipation ventilation hole is opened on cabinet top pressure relief plate Car room is a relatively independent space in switchgear, and air inlet is the indoor natural wind of cable, is gone here and there because being formed with cable vault Join air duct, and the space of the two is all larger, thus it is extremely unstable into the wind direction of handcart room and air quantity, and intake usually can be less than Air quantity does not meet Duct design principle, causes heat in handcart room that cannot be discharged in time, causes thermal accumlation.
In addition, handcart room and cable vault form series connection air duct, when arcing occurs for one of compartment, with another compartment Between be easy string arc, expand cabinet in impaired area.The especially switchgear of high current, existing cabinet body structure is still without being directed to hand The pressure release design that car room carries out, therefore it is necessary to opponent's car rooms to carry out independent air-cooled and pressure release design.
Invention content
In view of the deficienciess of the prior art, the utility model provides a kind of high current metal-enclosed switchgear handcart room Structure.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is:A kind of high current metal-enclosed type Switch cabinet handcart cell structure, including door-plate, middle partition board, middle upper spacer, contact box mounting plate, middle lower clapboard, head cover, preceding sealing plate, Pretectum and side plate, the middle partition board downside are equipped with air-cooled structure, and the air-cooled structure is equipped with air inlet, is set on the head cover There is an air outlet, middle and upper part is equipped with closure plate in the handcart room, corresponding position vertical with the air outlet on head cover on middle partition board and closure plate It sets and is respectively equipped with ventilation hole.
Further, the air-cooled structure include set on front labyrinth fagging, set on the bottom plate of bottom, set on side Left plate and right plate are fixedly connected between the labyrinth fagging, bottom plate, left plate, right plate and middle partition board, the labyrinth support Plate is equipped with air inlet.
Further, be equipped with arcing isolating device in the air-cooled structure, the arcing isolating device have outside inwardly according to Secondary includes the first arcing partition board, the second arcing partition board and third arcing partition board, and the first arcing partition board and the second arcing partition board are fixed Connection, and opens up ventilation hole respectively, by spring pin connection between the second arcing partition board and third arcing partition board, in handcart room When having arcing pressure to go out, spring-compressed, third arcing partition board blocks the ventilation hole on the second arcing partition board.
Further, four sides of the first arcing partition board respectively with middle partition board, the bottom plate of air-cooled structure, left plate and right plate It is fixedly connected, the second arcing partition board and third arcing partition board are respectively less than the first arcing partition board, the second arcing partition board and third arcing There is gap between partition board.
Further, the second arcing partition board is equipped with Air Filter.
Further, the bottom plate has acclivitous bending structure, forms oblique air duct.
Further, it is equipped with Air Filter at the air outlet on the air inlet and head cover on the labyrinth fagging.
Further, the middle lower clapboard is equipped with pressure relief plate.
Further, air-introduced machine is equipped at the air outlet on the head cover.
Further, the air-admitting surface is more than outlet air open area.
Compared with prior art, the utility model advantage is:
(1)The handcart room of the utility model is equipped with independent ventiduct structure, and the ventilation and heat of handcart room is relative to other compartments Form a separate space, in the case where not influencing cabinet arcing grade and degree of protection, can make heat in space and When be rapidly discharged, be independent of each other with other compartments, it is accurate to meet the warm raising of indices;
(2)With other compartments, it is therefore prevented that when arcing occurring in cabinet, gone here and there mutually between compartment arc the problem of;
(3)It is impacted by being arranged caused by closure plate can reduce when arcing generates in handcart indoor top air draft position; Pressure relief plate is set in handcart room simultaneously, it, can be into progress pressure release when arcing occurs.
Description of the drawings
Fig. 1 be the utility model is related to high current metal-enclosed switchgear structural schematic diagram;
Fig. 2 is the handcart room structural schematic diagram of the utility model;
Fig. 3 is the structural schematic diagram of the air-cooled structure of the utility model.
In figure, 1. handcart rooms;2. head cover;3. air-introduced machine;Upper spacer in 4.;5. closure plate;6. contact box mounting plate;In 7. Lower clapboard;8. air-cooled structure;Partition board in 9.;10. door-plate;11. vacuum circuit breaker;12. pretectum;Sealing plate before 13.;14. Cable vault;71. pressure relief plate;81. labyrinth fagging;82. bottom plate;83. the first arcing partition board;84. the second arcing partition board;85. Spring catch;86. third arcing partition board;87. right plate.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment is further described the utility model.
As illustrated in fig. 1 and 2, high current metal-enclosed switchgear includes handcart room 1, and vacuum circuit breaker is equipped in handcart room 1 Device 11,1 lower part of handcart room are cable vault 14, and upper front is control room;Handcart cell structure, including door-plate 10, middle partition board 9, in The side plate of upper spacer 4, contact box mounting plate 6, middle lower clapboard 7, head cover 2, preceding sealing plate 13, pretectum 12 and both sides, under middle partition board 9 Side is equipped with air-cooled structure 8, and air-cooled structure 8 is equipped with air inlet, and head cover 2 is equipped with air outlet, and middle and upper part is equipped with stifled in handcart room 1 Corresponding position vertical with the air outlet on head cover 2 is respectively equipped with ventilation hole on plate 5, middle partition board 9 and closure plate 5, and ventilation opening is by multiple The circular hole of a diameter of 20mm forms.The effect of closure plate 5 is when arcing occurring in handcart room 1, to play cushioning effect.Ensure into Air port area is more than outlet air open area, avoids forming negative pressure in handcart room 1, is unfavorable for radiating.As illustrated by the arrows in fig. 1, it is Wind direction of divulging information is illustrated, and wind passes through the air inlet on air-cooled structure 8 and enters, the ventilation hole on middle partition board 9, closure plate 5, from head cover Air outlet discharge on 2, handcart room 1 is interior to form independent ventilation air duct, and the heat in handcart room 1 is taken away, realizes cooling.And And handcart room 1 and cable vault are isolated entirely from by air-cooled structure 8, and string arc phenomenon when arcing will not occur.
Further, since cabinet is high current cabinet, generation heat is larger in handcart room, can pacify at the air outlet of head cover 2 Air-introduced machine 3 is filled, disposed at air vent can also be opened in middle partition board 9, one pressure fan is installed, the wind entered in this way by air inlet can be through sending In the feeding handcart room 1 of wind turbine rapid, high volume, then through the quickly discharge of cabinet top air-introduced machine 3, a large amount of heat in handcart room 1 is taken away, To achieve the effect that rapid cooling cools down.
As shown in figure 3, air-cooled structure includes the labyrinth fagging 81 set on front, the bottom plate 82 set on bottom, is set to side Left plate(It is not shown in figure)With right plate 87, between labyrinth fagging 81, bottom plate 82, left plate, right plate 87 and middle partition board 9 It is fixedly connected, labyrinth fagging 81 is equipped with air inlet.
Pressure goes out cabinet front position along air duct when to prevent arcing, ensures the arcing grade of cabinet, in air-cooled structure Equipped with arcing isolating device, it includes the first arcing partition board 83, the second arcing partition board 84 successively that arcing isolating device, which has outside inwardly, With third arcing partition board 85, the first arcing partition board 83 is fixedly connected with the second arcing partition board 84, and opens up ventilation hole respectively, the It is connected by spring catch 85 between two arcing partition boards 84 and third arcing partition board 86.Four sides of the first arcing partition board 83 are respectively in Partition board 9, the bottom plate 82 of air-cooled structure, left plate are fixedly connected with right plate 87, the second arcing partition board 84 and third arcing partition board 86 are respectively less than the first arcing partition board 83, have gap between the second arcing partition board 84 and third arcing partition board 86, for divulging information.When When having arcing pressure to go out in handcart room 1, spring-compressed, third arcing partition board 86 blocks up the ventilation hole on the second arcing partition board 84 Firmly, air duct is closed, avoids arcing pressure from being gone out from air inlet, ensure that the arcing grade of cabinet, prevents arcing leakage accident Occur.
In order to increase ventilation effect, bottom plate 82 has acclivitous bending structure, forms oblique air duct.
Meanwhile to prevent external dust etc. from entering in cabinet, ensureing the degree of protection of cabinet, the air inlet on labyrinth fagging 81 It is equipped with Air Filter at mouthful, at the air outlet on head cover 2 and on the second arcing partition board 84.
In order to improve degree of protection, handcart room 1 carries out pressure release design, and pressure relief plate 71, pressure relief plate are equipped on middle lower clapboard 7 71 tops are fixed on 7 upper and lower part of middle lower clapboard by nylon screw and are fixed on middle lower clapboard 7 by metal bolts, and handcart is worked as When thering is arcing pressure to go out in room 1, from pressure release from pressure relief plate 71.
In conclusion the ventilation and heat of the utility model handcart room forms an independent sky relative to other compartments Between, in the case where not influencing cabinet arcing grade and degree of protection, keep the heat that the operation of handcart room internal cause handcart generates quick It is effectively discharged out of cabinet, so that switch cabinet handcart room temperature is risen exceeded problem and be resolved, and its ventilation and heat space is opposite It is independent, do not interfere with other compartments, when also preventing occurring in cabinet arcing, gone here and there mutually between compartment arc the problem of.Also, it is equipped with Pressure relief plate and closure plate carry out pressure release.
Certainly, the above description is not intended to limit the present invention, and the utility model is also not limited to the example above, this The those of ordinary skill of technical field, in the essential scope of the utility model, the variations, modifications, additions or substitutions made, all The scope of protection of the utility model should be belonged to.

Claims (10)

1. a kind of high current metal-enclosed switchgear handcart cell structure, including door-plate, middle partition board, middle upper spacer, contact box peace Loading board, middle lower clapboard, head cover, preceding sealing plate, pretectum and side plate, it is characterised in that:It is equipped with air-cooled structure on the downside of the middle partition board, The air-cooled structure is equipped with air inlet, and the head cover is equipped with air outlet, and middle and upper part is equipped with closure plate, interval in the handcart room Corresponding position vertical with the air outlet on head cover is respectively equipped with ventilation hole on plate and closure plate.
2. high current metal-enclosed switchgear handcart cell structure according to claim 1, it is characterised in that:It is described air-cooled Structure includes labyrinth fagging, the bottom plate set on bottom, the left plate set on side and the right plate set on front, the labyrinth support It is fixedly connected between plate, bottom plate, left plate, right plate and middle partition board, the labyrinth fagging is equipped with air inlet.
3. high current metal-enclosed switchgear handcart cell structure according to claim 2, it is characterised in that:It is described air-cooled Arcing isolating device is equipped in structure, it includes the first arcing partition board, the second combustion successively that the arcing isolating device, which has outside inwardly, Arc partition board and third arcing partition board, the first arcing partition board and the second arcing partition board are fixedly connected, and open up ventilation hole respectively, the By spring pin connection between two arcing partition boards and third arcing partition board, when thering is arcing pressure to go out in handcart room, spring-compressed, Third arcing partition board blocks the ventilation hole on the second arcing partition board.
4. high current metal-enclosed switchgear handcart cell structure according to claim 3, it is characterised in that:First arcing Four sides of partition board are fixedly connected with middle partition board, the bottom plate of air-cooled structure, left plate and right plate respectively, the second arcing partition board and Three arcing partition boards are respectively less than the first arcing partition board, have gap between the second arcing partition board and third arcing partition board.
5. high current metal-enclosed switchgear handcart cell structure according to claim 3, it is characterised in that:Second arcing Partition board is equipped with Air Filter.
6. high current metal-enclosed switchgear handcart cell structure according to claim 2, it is characterised in that:The bottom plate With acclivitous bending structure, form oblique air duct.
7. high current metal-enclosed switchgear handcart cell structure according to claim 2, it is characterised in that:The labyrinth It is equipped with Air Filter at the air outlet on air inlet and head cover on fagging.
8. according to claim 1-7 any one of them high current metal-enclosed switchgear handcart cell structures, it is characterised in that: The middle lower clapboard is equipped with pressure relief plate.
9. according to claim 1-7 any one of them high current metal-enclosed switchgear handcart cell structures, it is characterised in that: Air-introduced machine is equipped at air outlet on the head cover.
10. high current metal-enclosed switchgear handcart cell structure according to claim 1, it is characterised in that:It is described into Air port area is more than outlet air open area.
CN201820154794.0U 2018-01-30 2018-01-30 A kind of high current metal-enclosed switchgear handcart cell structure Active CN207743613U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820154794.0U CN207743613U (en) 2018-01-30 2018-01-30 A kind of high current metal-enclosed switchgear handcart cell structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820154794.0U CN207743613U (en) 2018-01-30 2018-01-30 A kind of high current metal-enclosed switchgear handcart cell structure

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CN207743613U true CN207743613U (en) 2018-08-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109546566A (en) * 2018-12-29 2019-03-29 贵州黔力电器制造有限公司 One kind can pressure release intermediate switchgear cabinet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109546566A (en) * 2018-12-29 2019-03-29 贵州黔力电器制造有限公司 One kind can pressure release intermediate switchgear cabinet

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