CN203335956U - Equipment cabinet pressure relief device and equipment cabinet - Google Patents
Equipment cabinet pressure relief device and equipment cabinet Download PDFInfo
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- CN203335956U CN203335956U CN2013203907280U CN201320390728U CN203335956U CN 203335956 U CN203335956 U CN 203335956U CN 2013203907280 U CN2013203907280 U CN 2013203907280U CN 201320390728 U CN201320390728 U CN 201320390728U CN 203335956 U CN203335956 U CN 203335956U
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Abstract
The utility model relates to an equipment cabinet pressure relief device and an equipment cabinet. The equipment cabinet pressure relief device comprises a movable plate and a driving mechanism, wherein the movable plate is arranged on the position of a pressure relief opening of an equipment cabinet door plate and is capable of being opened towards the outer side of the equipment cabinet unidirectionally, and the driving mechanism is used for applying closing pressing force and resilience force on the movable plate. The movable plate covers and seals the pressure relief opening under the effect of the closing pressing force, and the closing pressing force applied to the movable plate by the driving mechanism is smaller than high-pressure gas pressure generated when dangerous sources in the equipment cabinet explode. The equipment cabinet pressure relief device can effectively block fragments of components in the cabinet, fragments generated by damage of the pressure relief device will not exist either, safe and fast pressure relief is achieved, anti-explosion safety of the equipment cabinet is improved, and the equipment cabinet pressure relief device is not only suitable for the equipment cabinet of wind energy convertors, but also suitable for other equipment cabinets with explosion risks.
Description
Technical field
The utility model relates to energy technology field, more particularly, relates to a kind of rack pressure relief device and rack.
Background technique
The wind energy converter rack belongs to large electric current high density rack, and cabinet internal heat generation amount is larger.In existing wind energy converter rack, generally adopt the wind-cooling heat dissipating mode to be dispelled the heat, wind-cooling heat dissipating is a kind of radiating mode of realizing heat exchange with the convection current of cabinet outer air that utilizes, and it can effectively solve the radiating requirements of the interior device of cabinet and bus.
But, when the current transformer that adopts wind-cooling heat dissipating breaks down or because of misoperation, current transformer is short-circuited, the transient thermal response and the electrical discharge arc that in cabinet, produce are probably explosion caused, a large amount of high temperature and high pressure gas is being mingled with the device fragment and can (for example importing and exporting from the rack air channel, venetian blind) spouting, serious harm, to the outer operator's of cabinet personal safety and the safety of the outer miscellaneous equipment of cabinet, may cause great casualties and property loss.Along with the increase of wind energy power level, the security requirement of complete machine structure is also more and more higher.
And the interior current transformer rack of wind energy industry does not substantially possess pressure relief device at present, even if some current transformer rack is provided with pressure relief device, also just adopt common pressure relief plate design, also mostly be the destruction closed structure.For example, pressure relief plate one side is used to the steel fastening piece, opposite side is used plastic fastener to fix.While breaking down in cabinet, high temperature and high pressure gas melts or breaks plastic fastener, and pressure relief plate is opened, and realizes protective function.But the while, the working of plastics fragment that pressure relief device self is fastening and the device fragment of taking out of along with gas still can jeopardize the outer operator's of cabinet personal safety and the safety of the outer miscellaneous equipment of cabinet.
In addition, owing to being negative pressure in cabinet in the short time after the blast pressure release, and now pressure relief device is damaged, can not reset, outside air can directly recharge in rack from pressure relief opening, and the interior of equipment cabinet combustion process is difficult for from horizontal blanking, may cause great casualties and property loss.
The model utility content
The technical problems to be solved in the utility model is, for the above-mentioned defect of prior art, provides a kind of pressure release safely and fast of carrying out, and can automatically reset rack pressure relief device.
Another purpose of the present utility model is, a kind of rack with above-mentioned rack pressure relief device is provided.
The utility model solves the technological scheme that its technical problem adopts:
Construct a kind of rack pressure relief device, comprise be arranged on pressure relief opening place on machine cabinet door plate, and can be to the mobile plate of the described rack unidirectional unlatching in the outside, with for described mobile plate being applied to the driving mechanism of closed impaction power and spring-back force; Wherein,
Described mobile plate covers and seals described pressure relief opening under the effect of described closed impaction power, and the closed impaction power that described driving mechanism applies described mobile plate is less than the high-pressure gas pressure that in described rack, the dangerous matter sources explosion time produces.
Rack pressure relief device described in the utility model, wherein, described driving mechanism is the moment of torsion rotating shaft;
Described mobile plate one end is connected on described machine cabinet door plate by described moment of torsion rotating shaft is rotating, and the described mobile plate the other end is free end.
Rack pressure relief device described in the utility model, wherein, described driving mechanism is the flexible drive body that can produce elastic stretching power;
Described mobile plate one end is connected through the hinge on described machine cabinet door plate, and the described mobile plate the other end is connected with described machine cabinet door plate by described flexible drive body.
Rack pressure relief device described in the utility model, wherein, described flexible drive body is connected on described machine cabinet door plate near the side in rack.
Rack pressure relief device described in the utility model, wherein, described flexible drive body is connected on described machine cabinet door plate near the side outside rack.
Rack pressure relief device described in the utility model, wherein, described mobile plate comprise with described machine cabinet door plate be fixedly connected with, the guide plate for the air-flow of releasing is led, and with described guide plate, be flexibly connected, for covering and seal the pressure release cover plate of described pressure relief opening;
Described driving mechanism is for can produce to described pressure release cover plate the pushing elastic push rod of described closed impaction power, and described pressure release cover plate is connected with described guide plate by described pushing elastic push rod.
Rack pressure relief device described in the utility model, wherein, described guide plate comprises for connecting the fixing part of described machine cabinet door plate, forms the cavity of an end opening after described fixing part is connected with described machine cabinet door plate;
Described pressure release cover plate and described pushing elastic push rod are arranged in described cavity, and the opening end of described cavity is provided with the guide portion for the air-flow of releasing is led.
The utility model also provides a kind of rack, comprises cabinet, wherein, is provided with on the door-plate of described cabinet and is convenient to the pressure relief opening that described cabinet inner high voltage gas is discharged, and described pressure relief opening place is provided with rack pressure relief device as described as aforementioned any one.
Rack described in the utility model, wherein, be provided with mounting plate on the door-plate of described cabinet, and described pressure relief opening is arranged on described mounting plate.
Rack described in the utility model, wherein, described pressure relief opening place is provided with protective net, and described protective net riveting is contained in a side of close cabinet inside on described door-plate or mounting plate.
Rack described in the utility model, wherein, the top board that the door-plate of described cabinet is described cabinet, base plate or side plate.
Rack described in the utility model, wherein, described pressure relief opening is arranged on the position near dangerous matter sources in described cabinet, or is arranged on described cabinet air channel on the way on path.
The beneficial effects of the utility model are: can be to the mobile plate of the rack unidirectional unlatching in the outside by arranging at rack pressure relief opening place, and by driving mechanism, mobile plate is applied the closed impaction power that is less than cabinet inner high voltage gas pressure, when cabinet internal cause fault is blasted, pressurized gas in cabinet are pushed mobile plate to carry out fast and safely pressure release open to the rack outsides, and along with the explosion air-flow is pushed mobile plate open, the cabinet internal pressure reduces gradually, active force to mobile plate reduces, when the cabinet internal pressure is less than the closed impaction power that driving mechanism applies mobile plate, mobile plate can be reset to closed state, realization automatically resets, stop that outside air flows in cabinet again, both can effectively stop device fragment in cabinet, can not exist pressure relief device self to damage the fragment produced yet, realize pressure release safely and fast, improved the explosion-proof security of rack, be not only applicable to the wind energy converter rack, be applicable to too the rack that other have risk of explosion.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the rack pressure relief device structure cardinal principle schematic diagram on machine cabinet door plate or mounting plate that is arranged on of the utility model preferred embodiment;
Fig. 2 is the rack pressure relief device general structure schematic diagram that is provided with protective net of the utility model preferred embodiment;
Fig. 3 is with the rack pressure relief device side structure schematic diagram of revolution axis type mobile plate in Fig. 2;
Fig. 4 is another embodiment's of the utility model the side structure of the rack pressure relief device with negative drawing formula mobile plate schematic diagram;
Fig. 5 is another embodiment's of the utility model the pressure relief device of the rack with the drawing mobile plate of forward side structure schematic diagram;
Fig. 6 is another embodiment's of the utility model the pressure relief device of the rack with push-press type mobile plate side structure schematic diagram;
Fig. 7 is rack pressure relief device mounting structure schematic diagram between two racks of the utility model preferred embodiment.
Embodiment
The rack pressure relief device of the utility model preferred embodiment as shown in Figure 1, Figure 2 and Figure 3, consult Fig. 7 simultaneously, comprise be arranged on pressure relief opening 32 places on rack 60 door-plates 30, and can be to the mobile plate 21 of the rack 60 unidirectional unlatchings in the outside, with for mobile plate 21 being applied to the driving mechanism 22 of closed impaction power and spring-back force; Wherein, mobile plate 21 covers and seals pressure relief opening 32 under the effect of closed impaction power, and the closed impaction power that 22 pairs of mobile plates 21 of driving mechanism apply is less than the high-pressure gas pressure that the interior dangerous matter sources explosion time of rack 60 produces.When cabinet internal cause fault is blasted, pressurized gas in cabinet are pushed mobile plate 21 along direction shown in arrow in Fig. 1 and Fig. 2 open and are carried out fast and safely pressure release to rack 60 outsides, and along with the explosion air-flow is pushed mobile plate 21 open, the cabinet internal pressure reduces gradually, active force to mobile plate 21 reduces, when the cabinet internal pressure is less than the closed impaction power that 22 pairs of mobile plates 21 of driving mechanism apply, mobile plate 21 can be reset to closed state, realization automatically resets, stop that outside air flows in cabinet again, both can effectively stop device fragment in cabinet, can not exist pressure relief device self to damage the fragment produced yet, realize pressure release safely and fast, improved the explosion-proof security of rack, be not only applicable to the wind energy converter rack, be applicable to too the rack that other have risk of explosion.
Simultaneously, as depicted in figs. 1 and 2, consult Fig. 7 simultaneously, because the mobile plate 21 in above-described embodiment can only be to the rack 60 unidirectional unlatchings in the outside, the i.e. unidirectional unlatching of side B of releasing outside cabinet by the blast source A in cabinet, can not oppositely push open, when the side B(that releases is the rack outside) when having an accident, blast source A(is the rack inboard) when also dangerous source exists, can be because of rack 60 outside pressure reverse opening mobile plates 21, cause chain explosion, further improved the explosion-proof security of rack 60.
In a further embodiment, as shown in Figure 3, consult Fig. 2 and Fig. 7, the driving mechanism 22 of above-mentioned rack pressure relief device 20 is the moment of torsion rotating shaft simultaneously; Mobile plate 21 1 ends are connected on rack 60 door-plates 30 by the moment of torsion rotating shaft is rotating, and mobile plate 21 the other ends are free end.The active force of resilience after impacting force when the moment of torsion rotating shaft can provide mobile plate 21 closed and unlatching, the opening angle of mobile plate 21 is limited by the torsion of moment of torsion rotating shaft, when aperture is larger, moment of torsion is larger, and the explosion air-flow is along with the increase of mobile plate 21 apertures, and pressure can diminish, make the underpressure of explosion air-flow so that mobile plate 21 bendings are opened, therefore the aperture of mobile plate 21 generally can not surpass 90 °, makes air-flow along mobile plate 21 opening direction vectored injections, realizes safety relief.
In a further embodiment, as shown in Figure 4 and Figure 5, consult Fig. 2 and Fig. 7, the driving mechanism 22 of above-mentioned rack pressure relief device 20 is the flexible drive body that can produce elastic stretching power, for example spring simultaneously; Mobile plate 21 1 ends are connected on rack 60 door-plates 30 by hinge 23, and mobile plate 21 the other ends are connected with rack 60 door-plates 30 by the flexible drive body.The active force of resilience after impacting force when the elastic stretching power that the flexible drive body produces can provide mobile plate 21 closed and unlatching.Wherein, the link position of flexible drive body on rack 60 door-plates 30 can have multiple, only needs it can provide above-mentioned impacting force and spring-back force to get final product.For example, as shown in Figure 4, the flexible drive body can be connected on rack 60 door-plates 30 near the side in rack 60, from negative drawing mobile plate 21; Perhaps, as shown in Figure 5, the flexible drive body can be connected on rack 60 door-plates 30 near the side outside rack 60, from forward stretch plate 21.
In above-described embodiment, as shown in Figure 3 and Figure 4, consult Fig. 2 and Fig. 7, the mobile plate 21 of rack pressure relief device 20 integrates pressure release, guide function simultaneously, by a mobile plate, realizes the function of pressure release and guiding simultaneously.Preferably, above-mentioned mobile plate 21 is near middle part, side 213 projections in rack 60, and the convex portion shape size is suitable with pressure relief opening 32 shape sizes, when reducing mobile plate 21 closure and the gap of pressure relief opening 32 edges.
In another embodiment, as shown in Figure 6, consult Fig. 2 and Fig. 7 simultaneously, the mobile plate 21 of rack pressure relief device 20 comprise with rack 60 door-plates 30 be fixedly connected with, the guide plate 211 for the air-flow of releasing is led, and comprise with guide plate 211 be flexibly connected, for covering and seal the pressure release cover plate 212 of pressure relief opening 32; Driving mechanism 22 is to produce the pushing elastic push rod of closed impaction power to pressure release cover plate 212, and pressure release cover plate 212 is connected with guide plate 211 by the pushing elastic push rod.That is, the pressure release of mobile plate 21 and guide function are divided into to the two boards realization, guide plate 211 maintains static, and pressure release cover plate 212 can under high pressure be opened and close in pushing elastic push rod effect reclosing next time.Wherein, the pushing elastic push rod can be spring, can be also hydraulic mandril, and quantity can be one, two or more.
Particularly, as shown in Figure 6, consult Fig. 2 and Fig. 7 simultaneously, guide plate 211 in above-described embodiment comprises for connecting the fixing part 2111 of rack 60 door-plates 30, form the cavity 24 of an end opening after fixing part 2111 is connected with rack 60 door-plates 30, pressure release cover plate 212 and pushing elastic push rod are arranged in cavity 24.Wherein, above-mentioned cavity 24 can be the cavity of arbitrary shape size, and such as cuboid, spheroid etc. only needs to hold pushing elastic push rod and pressure release cover plate 212 are installed, and allow that pressure release cover plate 212 has enough activity spaces to get final product.The opening end of cavity 24 is provided with the guide portion 2112 for the air-flow of releasing is led, and guide portion 2112 can be a trumpet-shaped opening, with the high pressure draught to releasing out, is led.
In another embodiment of the present utility model, a kind of rack also is provided, be preferably the wind energy converter rack, as shown in Figure 7, consult Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6 simultaneously, comprise cabinet 61, be provided with on the door-plate 30 of cabinet 61 and be convenient to the pressure relief opening 32 that cabinet 61 inner high voltage gases are discharged, pressure relief opening 32 places are provided with the rack pressure relief device 20 described in aforementioned arbitrary embodiment.Wherein, the concrete structure of rack pressure relief device 20 and working principle, referring to aforementioned each embodiment, do not repeat one by one at this.
In the various embodiments described above, pressure relief opening 32 can be set directly on cabinet 61 door-plates 30, also can as shown in Figure 7 mounting plate 33 be set on the door-plate of cabinet, and pressure relief opening is arranged on mounting plate 33.That is, the door-plate 30 in aforementioned each embodiment can all be substituted by a mounting plate 33, and the openings of sizes shape that the reserved needs in the size shape of mounting plate 33 and rack 60 sides are sealed is suitable, and all the other places of side of cabinet are sealed by miscellaneous part or plate.
In the various embodiments described above, top board, base plate or side plate that the door-plate 30 of cabinet 61 is cabinet 61, be top, bottom or the side that above-mentioned rack pressure relief device 20 can be arranged on rack 60 as required, but can not be placed on personnel's fore side or the viewing surface such as main entrance, outer door of rack 60, in order to avoid cause accidental injury.When being arranged on the top of rack 60, above-mentioned mounting plate 33 and pressure relief opening must be sealed by the adhesive seal bar in 32 1 weeks; When being arranged on rack 60 bottom, need carry out adhesive seal according to rack security level selectivity.
Preferably, above-mentioned pressure relief opening 32(or rack pressure relief device 20) be arranged on the position near cabinet 61 implode sources, so that pressure release in time.
More preferably, above-mentioned pressure relief opening 32(or rack pressure relief device 20) be arranged on cabinet 61 air channels on the way on path, to guarantee that in cabinet, pressure release passage is unobstructed, realize safety relief.
Rack pressure relief device 20 in above-described embodiment also can be arranged between two racks 60.When being installed between two racks, as shown in Figure 7, the rack that is positioned at the side B that releases must have the external pressure release outlet of safe secondary, to guarantee that in cabinet, pressure release passage is unobstructed, realizes safety relief.When blast source A dangerous matter sources 70 is blasted, the first step-down of once expanding of the rack pressure relief device 20 by above-described embodiment, and by the guide function of rack pressure relief device 20, air-flow is sprayed from the safety wind road junction 80 of the side B rack of releasing, now gas releases energy through reexpansion, and externally impact force further weakens greatly.
Further, as shown in Figure 2, pressure relief opening 32 places in the above-described embodiments are provided with protective net 321, protective net 321 can effectively stop device fragment in cabinet, prevent that fragment from flying out from pressure relief opening, further reduce the loss that blast causes, also can prevent that the attendant from opening mobile plate 21 without authorization simultaneously.
Preferably, protective net 321 rivetings are contained on the door-plate 30 of cabinet 61 or mounting plate 33 near a side of cabinet 61 inside, with the impact force that prevents high pressure draught, make the rivet fracture cause protective net 321 to come off.
To sum up, after adopting rack pressure relief device of the present utility model, both can effectively stop device fragment in cabinet, can not exist pressure relief device self to damage the fragment produced yet, realize pressure release safely and fast, improve the explosion-proof security of rack, be not only applicable to the wind energy converter rack, be applicable to too the rack that other have risk of explosion.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (12)
1. a rack pressure relief device, it is characterized in that, comprise be arranged on the upper pressure relief opening (32) of rack (60) door-plate (30) locate, and can be to the mobile plate (21) of described rack (60) the unidirectional unlatching in the outside, with for described mobile plate (21) being applied to the driving mechanism (22) of closed impaction power and spring-back force; Wherein,
Described mobile plate (21) covers and seals described pressure relief opening (32) under the effect of described closed impaction power, and the closed impaction power that described driving mechanism (22) applies described mobile plate (21) is less than the high-pressure gas pressure that in described rack, the dangerous matter sources explosion time produces.
2. rack pressure relief device according to claim 1, is characterized in that, described driving mechanism (22) is the moment of torsion rotating shaft;
Described mobile plate (21) one ends are connected to described rack (60) door-plate (30) above by described moment of torsion rotating shaft is rotating, and described mobile plate (21) the other end is free end.
3. rack pressure relief device according to claim 1, is characterized in that, described driving mechanism (22) is the flexible drive body that can produce elastic stretching power;
Described mobile plate (21) one ends are connected through the hinge upper at described rack (60) door-plate (30), and described mobile plate (21) the other end is connected with described rack (60) door-plate (30) by described flexible drive body.
4. rack pressure relief device according to claim 3, is characterized in that, it is upper near the side in rack that described flexible drive body is connected to described rack (60) door-plate (30).
5. rack pressure relief device according to claim 3, is characterized in that, described flexible drive body is connected to the upper side outer near rack of described rack (60) door-plate (30).
6. rack pressure relief device according to claim 1, it is characterized in that, described mobile plate (21) comprise with described rack (60) door-plate (30) be fixedly connected with, the guide plate (211) for the air-flow of releasing is led, and with described guide plate (211), be flexibly connected, for covering and seal the pressure release cover plate (212) of described pressure relief opening (32);
Described driving mechanism (22) is for can produce to described pressure release cover plate (212) the pushing elastic push rod of described closed impaction power, and described pressure release cover plate (212) is connected with described guide plate (211) by described pushing elastic push rod.
7. rack pressure relief device according to claim 6, it is characterized in that, described guide plate (211) comprises for connecting the fixing part (2111) of described rack (60) door-plate (30), forms the cavity (24) of an end opening after described fixing part (2111) is connected with described rack (60) door-plate (30);
Described pressure release cover plate (212) and described pushing elastic push rod are arranged in described cavity (24), and the opening end of described cavity (24) is provided with the guide portion (2112) for the air-flow of releasing is led.
8. a rack, comprise cabinet (61), it is characterized in that, be provided with on the door-plate (30) of described cabinet (61) and be convenient to the pressure relief opening (32) that described cabinet (61) inner high voltage gas is discharged, described pressure relief opening (32) locates to be provided with rack pressure relief device as described as any one in claim 1-7 (20).
9. rack according to claim 8, is characterized in that, on the door-plate (30) of described cabinet (61), is provided with mounting plate (33), and described pressure relief opening (32) is arranged on described mounting plate (33).
10. rack according to claim 9, it is characterized in that, described pressure relief opening (32) locates to be provided with protective net (321), and described protective net (321) riveting is contained in described door-plate (30) or the upper side inner near described cabinet (61) of mounting plate (33).
11. rack according to claim 8, is characterized in that, top board, base plate or side plate that the door-plate (30) of described cabinet (61) is described cabinet (61).
12. rack according to claim 8, is characterized in that, described pressure relief opening (32) is arranged on the position near the interior dangerous matter sources of described cabinet (61), or is arranged on described cabinet (61) air channel on the way on path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203907280U CN203335956U (en) | 2013-07-02 | 2013-07-02 | Equipment cabinet pressure relief device and equipment cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203907280U CN203335956U (en) | 2013-07-02 | 2013-07-02 | Equipment cabinet pressure relief device and equipment cabinet |
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| Publication Number | Publication Date |
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| CN203335956U true CN203335956U (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203907280U Expired - Lifetime CN203335956U (en) | 2013-07-02 | 2013-07-02 | Equipment cabinet pressure relief device and equipment cabinet |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134723A (en) * | 2017-06-28 | 2017-09-05 | 河南森源电气股份有限公司 | Switch cubicle and its pressure release ventilation unit |
| CN109428275A (en) * | 2017-08-24 | 2019-03-05 | 通用电气公司 | Electric power distribution system including pressure release mechanism |
| CN109431231A (en) * | 2018-06-26 | 2019-03-08 | 浙江苏泊尔家电制造有限公司 | Cooking apparatus |
| CN110624190A (en) * | 2019-10-17 | 2019-12-31 | 汇乐因斯福环保安全研究院（苏州）有限公司 | Efficient, rapid and reusable flameless pressure relief device |
| CN113411999A (en) * | 2021-06-28 | 2021-09-17 | 王隽峰 | Information-based equipment based on Internet of things |
| CN114142385A (en) * | 2021-11-22 | 2022-03-04 | 国网福建省电力有限公司尤溪县供电公司 | 10kV sulfur hexafluoride gas pressure relief ring main unit |
-
2013
- 2013-07-02 CN CN2013203907280U patent/CN203335956U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134723A (en) * | 2017-06-28 | 2017-09-05 | 河南森源电气股份有限公司 | Switch cubicle and its pressure release ventilation unit |
| CN109428275A (en) * | 2017-08-24 | 2019-03-05 | 通用电气公司 | Electric power distribution system including pressure release mechanism |
| CN109428275B (en) * | 2017-08-24 | 2022-03-08 | Abb瑞士股份有限公司 | Power distribution system including pressure release mechanism |
| CN109431231A (en) * | 2018-06-26 | 2019-03-08 | 浙江苏泊尔家电制造有限公司 | Cooking apparatus |
| CN109431231B (en) * | 2018-06-26 | 2024-04-16 | 浙江苏泊尔家电制造有限公司 | Cooking utensil |
| CN110624190A (en) * | 2019-10-17 | 2019-12-31 | 汇乐因斯福环保安全研究院（苏州）有限公司 | Efficient, rapid and reusable flameless pressure relief device |
| CN113411999A (en) * | 2021-06-28 | 2021-09-17 | 王隽峰 | Information-based equipment based on Internet of things |
| CN114142385A (en) * | 2021-11-22 | 2022-03-04 | 国网福建省电力有限公司尤溪县供电公司 | 10kV sulfur hexafluoride gas pressure relief ring main unit |
| CN114142385B (en) * | 2021-11-22 | 2023-09-22 | 国网福建省电力有限公司尤溪县供电公司 | 10kV sulfur hexafluoride gas pressure relief ring main unit |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Nanshan District Xueyuan Road in Shenzhen city of Guangdong province 518055 No. 1001 Nanshan Chi Park B2 building 1-4 floor, building 6-10 Patentee after: VERTIV TECH Co.,Ltd. Address before: 518057 Nanshan District science and Technology Industrial Park, Guangdong, Shenzhen Branch Road, No. Patentee before: EMERSON NETWORK POWER Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220127 Address after: 710000 room 804, 8th floor, building 14, West Yungu phase I, Fengxi new town, Xixian new area, Xi'an, Shaanxi Patentee after: Weidi new energy Co.,Ltd. Address before: 518055 1-4, 6-10 floor, B2 building, Nanshan Zhiyuan, 1001 Nanshan District Xue Yuan Avenue, Shenzhen, Guangdong. Patentee before: VERTIV TECH Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |
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| CX01 | Expiry of patent term |