CN204179508U - A kind of pressure relief device of switch cabinet - Google Patents

A kind of pressure relief device of switch cabinet Download PDF

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Publication number
CN204179508U
CN204179508U CN201420645175.3U CN201420645175U CN204179508U CN 204179508 U CN204179508 U CN 204179508U CN 201420645175 U CN201420645175 U CN 201420645175U CN 204179508 U CN204179508 U CN 204179508U
Authority
CN
China
Prior art keywords
cover plate
pressure relief
relief device
lead
switch cabinet
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.)
Expired - Fee Related
Application number
CN201420645175.3U
Other languages
Chinese (zh)
Inventor
曾庆才
龚从秋
朱卉
何康
简超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Kexing Electric Power & Electrical Appliance Co ltd
Original Assignee
Chengdu Kexing Electric Power & Electrical Appliance Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chengdu Kexing Electric Power & Electrical Appliance Co ltd filed Critical Chengdu Kexing Electric Power & Electrical Appliance Co ltd
Priority to CN201420645175.3U priority Critical patent/CN204179508U/en
Application granted granted Critical
Publication of CN204179508U publication Critical patent/CN204179508U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of pressure relief device of switch cabinet, comprise cover plate, it is characterized in that, described side edge thereof place offers pilot hole, the top of cabinet offers window, be provided with the lead corresponding with pilot hole at the periphery of window, cover plate is slided on lead by pilot hole and covers whole window, and the top of lead is provided with stopper.Pressure relief device of switch cabinet described in the utility model, when being short-circuited fault, effectively preventing cover plate from being impacted ejection and wounds staff, improves the safety in utilization of pressure relief device.

Description

A kind of pressure relief device of switch cabinet
Technical field
The utility model relates to switchgear, particularly relates to a kind of pressure relief device of switch cabinet.
Background technology
Switch cubicle is a kind of lining switchgear and control appliance, in its running, (as short circuit, ageing of insulation, human operational error etc.) cause loop short trouble to occur because of various reasons, under high short circuit current, produce high temperature and high pressure gas, if high temperature and high pressure gas effectively can not discharge in narrow cabinet in very short time, switch cubicle can be caused to burst, injure personal safety.Existing pressure relief device arranges cover plate at the top of switch cubicle, one end of cover plate is connected through the hinge on switch cubicle, the other end is fixed by nylon screw, when be short-circuited in switch cubicle accident time, nylon screw is melted by high temperature very soon, and cover plate is impacted pressure release of upspringing by the gases at high pressure in switch cubicle.But this traditional pressure relief device nylon screw melt during this period of time in, high temperature and high pressure gas in switch cubicle is accumulated further, after nylon screw melts completely, cover plate can be upspring at a high speed by high temperature and high pressure gas, cover plate, around hinge High Rotation Speed, be easy to make hinge break, thus cover plate flies out,, there is potential safety hazard in easy accidental injury staff.
Utility model content
The technical assignment of technical problem to be solved in the utility model and proposition improves prior art, a kind of pressure relief device of switch cabinet is provided, the pressure relief device safety in utilization solved in current technology is poor, and the cover plate Li great Workflow that is hit launches an attack the problem of the person of hurting sb.'s feelings.
For solving above technical problem, the technical solution of the utility model is:
A kind of pressure relief device of switch cabinet, comprise cover plate, it is characterized in that, described side edge thereof place offers pilot hole, the top of cabinet offers window, be provided with the lead corresponding with pilot hole at the periphery of window, cover plate is slided on lead by pilot hole and covers whole window, and the top of lead is provided with stopper.Pressure relief device of switch cabinet described in the utility model utilizes lead to play cover plate by the guide effect impacted when upspringing when switch cubicle is short-circuited fault, cover plate is moved along lead pop up, limit the direction of motion of cover plate, the stopper simultaneously arranged at the top of lead can prevent cover plate from flying out from lead, thus effectively raise the fail safe of switch cubicle, avoid the cover plate flown out to wound staff.
Further, described lead is also provided with up big and down small interference section, pilot hole and interference section are interference fit, and when switch cubicle normally works, cover plate is fastened on the window at cabinet top, the equipment in protection switch cabinet; When being short-circuited fault, cover plate is impacted by high temperature and high pressure gas upsprings, cover plate moves up along lead, interference segmentation is moved at cover plate, pilot hole is fastened on interference section and goes out, thus cover plate can not be fallen back on window, makes window be in full open state all the time, keep top to have maximum pressure release effect, improve fail safe further.
Further, described cover plate is also fixed on cabinet top by nylon screw, play low intensive connection function, play the effect of securing cover plate when switch cubicle normally works, when being short-circuited fault, nylon screw can be melted by high temperature very soon, when there is pinking, cover plate can around hinge through, release cabinet internal pressure, prevents high temperature and high pressure gas from the release of switch cubicle front, causes the serious burn accident of personnel.
Further, described cover plate is provided with pressure relief opening, device waffle slab on pressure relief opening, above cover plate, returning apparatus has dust excluding plate.When switch cubicle is short-circuited accident, the high temperature and high pressure gas of the generation in cabinet first can discharge a part from pressure relief opening, thus the air pressure that can reduce in switch cubicle, reduce knock intensity, with timer, the pressure relief opening of waffle slab also plays good thermolysis when switch cubicle normally works, and ensures the equipment long-acting steady operation in switch cubicle.On pressure relief opening, device waffle slab can effectively prevent worm mouse etc. from entering in switch cubicle the equipment of stinging of biting, the safety in utilization of proterctive equipment, and above cover plate device dust excluding plate, prevent dust from falling in switch cubicle, avoid dust accumulate cause heat radiation bad.
Further, described dust excluding plate is several fonts, and offer ventilation mouth at side, play good dustproof effect, and improve gas permeability to greatest extent, there is good radiating effect, and when switch cubicle is short-circuited fault, high temperature and high pressure gas can be made to discharge smoothly, reduce cabinet internal pressure, reduce pinking.
Compared with prior art, the utility model advantage is:
Pressure relief device of switch cabinet described in the utility model, when being short-circuited fault, effectively preventing cover plate from being impacted ejection and wounds staff, improves the safety in utilization of pressure relief device; Pressure relief device of switch cabinet described in the utility model also has good thermolysis simultaneously, ensures the long-acting steady operation of equipment in switch cubicle; The utility model structure is simple, and cost of manufacture is low, applied widely.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is cross-sectional view of the present utility model;
Fig. 3 is the structural representation of cover plate.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
A kind of pressure relief device of switch cabinet disclosed in the utility model embodiment, during preventing short circuit fault, cover plate is flown by high temperature and high pressure gas impact bullet, avoids wounding staff, improves fail safe.
As Fig. 1 to Fig. 3 shows, a kind of pressure relief device of switch cabinet, comprise cover plate 1, cover plate 1 edge offers pilot hole 2, and the top of cabinet 3 offers window 4, is provided with the lead 5 corresponding with pilot hole 2 at the periphery of window 4, cover plate 1 is slided on lead 5 by pilot hole 2 and covers whole window, and the top of lead 5 is provided with stopper 6 prevents cover plate 1 from deviating from, and lead 5 is also provided with up big and down small interference section 7, pilot hole 2 and interference section 7 are interference fit.Cover plate 1 can be slided up and down along lead 5 by pilot hole 2, and when switch cubicle normally works, cover plate 1 is fastened on window 4; When being short-circuited accident, cover plate 1 impacts to upspring and makes it move up along lead 5 by high temperature and high pressure gas, and when moving to interference section 7, pilot hole 2 is fastened on interference section 7 place, and cover plate 1 can not be fallen, and makes window 4 standard-sized sheet be in maximum pressure release state.Cover plate 1 is also fixed on cabinet 3 top by nylon screw 8, plays low intensive connection.
Cover plate 1 is provided with pressure relief opening 9, device waffle slab 10 on pressure relief opening, above cover plate 1, returning apparatus has dust excluding plate 11, and dust excluding plate 11 in a few font, and offers ventilation mouth 12 at side.Playing thermolysis when equipment normally works, a part of high temperature and high pressure gas can be discharged in advance when being short-circuited fault, reduce knock intensity.
Below be only preferred implementation of the present utility model, it should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, protection range of the present utility model should be as the criterion with claim limited range.For those skilled in the art, not departing from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.

Claims (5)

1. a pressure relief device of switch cabinet, comprise cover plate (1), it is characterized in that, described cover plate (1) edge offers pilot hole (2), the top of cabinet (3) offers window (4), the lead (5) corresponding with pilot hole (2) is provided with at the periphery of window (4), cover plate (1) is slided on lead (5) by pilot hole (2) and covers whole window, and the top of lead (5) is provided with stopper (6).
2. pressure relief device of switch cabinet according to claim 1, it is characterized in that, described lead (5) is also provided with up big and down small interference section (7), and pilot hole (2) and interference section (7) are interference fit.
3. pressure relief device of switch cabinet according to claim 2, is characterized in that, described cover plate (1) is also fixed on cabinet (3) top by nylon screw (8).
4. pressure relief device of switch cabinet according to claim 1, it is characterized in that, described cover plate (1) is provided with pressure relief opening (9), device waffle slab (10) on pressure relief opening, has dust excluding plate (11) at the top returning apparatus of cover plate (1).
5. pressure relief device of switch cabinet according to claim 4, is characterized in that, described dust excluding plate (11) in a few font, and offers ventilation mouth (12) at side.
CN201420645175.3U 2014-10-30 2014-10-30 A kind of pressure relief device of switch cabinet Expired - Fee Related CN204179508U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420645175.3U CN204179508U (en) 2014-10-30 2014-10-30 A kind of pressure relief device of switch cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420645175.3U CN204179508U (en) 2014-10-30 2014-10-30 A kind of pressure relief device of switch cabinet

Publications (1)

Publication Number Publication Date
CN204179508U true CN204179508U (en) 2015-02-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420645175.3U Expired - Fee Related CN204179508U (en) 2014-10-30 2014-10-30 A kind of pressure relief device of switch cabinet

Country Status (1)

Country Link
CN (1) CN204179508U (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106898954A (en) * 2017-04-24 2017-06-27 武汉大学 A kind of pressure relief device of switch cabinet
CN107769039A (en) * 2017-11-11 2018-03-06 河南森源电气股份有限公司 Ventilation and pressure release device, switch cabinet body and switch cubicle
CN108110643A (en) * 2018-02-06 2018-06-01 苏州金蚂蚁精密钣金有限公司 Explosion-proof positive pressure power distribution cabinet
CN108448474A (en) * 2018-03-30 2018-08-24 河南金土商贸有限公司 A kind of interlocking pressure release ring main unit automatically controlled
CN108649457A (en) * 2018-03-30 2018-10-12 河南金土商贸有限公司 A kind of interlocking pressure release ring main unit that protective is good
CN109708953A (en) * 2019-01-31 2019-05-03 河南城建学院 Three axis load sample cylinder of release window adjustable type and its experimental method
CN111817179A (en) * 2020-06-11 2020-10-23 阜阳腾冠电力科技有限公司 Prevent burning multiple pressure release formula switch board of arc
US11291128B2 (en) 2017-06-01 2022-03-29 R. Stahl Schaltgeräte GmbH Welded pressure relief device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106898954A (en) * 2017-04-24 2017-06-27 武汉大学 A kind of pressure relief device of switch cabinet
US11291128B2 (en) 2017-06-01 2022-03-29 R. Stahl Schaltgeräte GmbH Welded pressure relief device
CN107769039A (en) * 2017-11-11 2018-03-06 河南森源电气股份有限公司 Ventilation and pressure release device, switch cabinet body and switch cubicle
CN107769039B (en) * 2017-11-11 2023-09-19 河南森源电气股份有限公司 Ventilation and pressure relief device, switch cabinet body and switch cabinet
CN108110643A (en) * 2018-02-06 2018-06-01 苏州金蚂蚁精密钣金有限公司 Explosion-proof positive pressure power distribution cabinet
CN108448474A (en) * 2018-03-30 2018-08-24 河南金土商贸有限公司 A kind of interlocking pressure release ring main unit automatically controlled
CN108649457A (en) * 2018-03-30 2018-10-12 河南金土商贸有限公司 A kind of interlocking pressure release ring main unit that protective is good
CN109708953A (en) * 2019-01-31 2019-05-03 河南城建学院 Three axis load sample cylinder of release window adjustable type and its experimental method
CN109708953B (en) * 2019-01-31 2021-06-22 河南城建学院 Pressure-relief-window-adjustable triaxial-loading sample cylinder and experimental method thereof
CN111817179A (en) * 2020-06-11 2020-10-23 阜阳腾冠电力科技有限公司 Prevent burning multiple pressure release formula switch board of arc

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150225

Termination date: 20201030