CN201594513U - Novel integral combined electric appliance - Google Patents
Novel integral combined electric appliance Download PDFInfo
- Publication number
- CN201594513U CN201594513U CN200920181228XU CN200920181228U CN201594513U CN 201594513 U CN201594513 U CN 201594513U CN 200920181228X U CN200920181228X U CN 200920181228XU CN 200920181228 U CN200920181228 U CN 200920181228U CN 201594513 U CN201594513 U CN 201594513U
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- electrical apparatus
- combined electrical
- isolating switch
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Abstract
A novel integral combined electric appliance comprises a three-station disconnector, a vacuum circuit-breaker or a load switch or a load switch-fuse combined electric appliance and an operating mechanism. The three-station disconnector is arranged above the integral combined electric appliance and arranged according to a sequence of the front, the middle and the rear, other electric appliance elements are closely packaged in epoxy seal poles and disposed below the disconnector, the epoxy seal poles are spliced together to form a partition board to separate a bus chamber from a switch cable chamber, upper outgoing-lines of the other electric appliance elements form a switch rotary fulcrum of the three-station disconnector, the operating mechanism is a dual-purpose spring operating mechanism disposed at the front end of the integral combined electric appliance, a torsion spring energy-storage mechanism at the upper end of the operating mechanism drives a three-station disconnector rotating shaft to act so as to open and close the three-station disconnector, a coil spring energy-storage mechanism at the lower end drives other electric appliance elements to operate, and current sensor mounting spaces and wiring slots are reserved at lower ends of the epoxy seal poles. The novel integral combined electric appliance has compact structure and safe use, and reduces space, failure rate and cost.
Description
Technical field:
The utility model relates to a kind of electrical equipment, and is relevant with a kind of combined electrical apparatus, especially relevant with tri-station isolating switch that will innovation and New Combined Switchgear that the vacuum circuit-breaker (on-load switch, switch-fuse combination) of innovation has carried out integrated design.
Background technology:
One group of switch cubicle is to be arranged in a combination by different designs, and the main electric elements that different designs adopts are also different.Usually incoming line cabinet, contact cabinet are used isolating switch+circuit breaker+earthed switch, feeder line cabinet isolating switch+combined electrical apparatus+earthed switch, outlet cabinet feeder line cabinet isolating switch+on-load switch.Switch cubicle at present commonly used has two kinds: the mid-cabinet of withdraw-type that arrange a kind of A of being, B, C left, center, right, a kind ofly be behind A, B, the C, in, the box stationary cabinet of preceding arrangement.The external form of withdraw-type is bigger, and fixed external form is less.Withdraw-type is often joined vacuum circuit-breaker, the fixed on-load switch (combined electrical apparatus) of often joining.The withdraw-type locking device is more, operation sequence is complicated, and connecting main bus bar need change 90 ° of displacements.The fixed on-load switch of often joining, switch-fuse combination, locking device is simpler, and two kinds of cabinet types connect, and generally will add excessive cabinet.The transition cabinet turn 90 degrees the busbar of A, B, C left, center, right, become A, B, C after, in, preceding arrangement, two kinds of cabinets can connect.Also can design the stationary cabinet of joining circuit breaker,, will install isolating switch additional between bus and the circuit breaker, and require to have obvious fracture for the safety of circuit breaker repair and maintenance.Under the situation that the bus-bar room of box stationary cabinet and switching cable chamber separate, cut cable will install earthed switch additional, could guarantee that the switch cubicle door opens back repair and maintenance personnel's safety.The last isolating switch of this cabinet type, oversize with the mechanical chain pull bar of cut cable ground connection switch, traditional isolating switch, vacuum circuit-breaker (on-load switch, switch-fuse combination) earthed switch all is again independently, chain is the most thorny difficult problem of this stationary cabinet design, also be to cause anti-error chain ging wrong, one of reason that after-sale service is more.
Summary of the invention:
The utility model purpose is to overcome the shortcoming of technique scheme, provide a kind of simple in structure, combination, easy to use, reduce the space, compact conformation reduces the source of trouble, prevents misoperation, and can realize not having feeder cable end ground connection switch, the novel all-in-one combined electrical apparatus of feeder cable ground connection.
For reaching above-mentioned purpose, the utility model adopts following technical scheme:
The novel all-in-one combined electrical apparatus, comprise tri-station isolating switch, vacuum circuit-breaker supporting or on-load switch or switch-fuse combination and operating mechanism with it, described tri-station isolating switch switch is arranged on the top of integrated combined electrical apparatus, before pressing, in, after arrange, vacuum interrupter is enclosed in the epoxy resin seal pole admittedly, be arranged on the below of isolating switch, and described epoxy resin seal pole is stitched together and forms dividing plate and separate bus-bar room and switching cable chamber, in addition, outlet forms the disconnecting link rotating fulcrum of tri-station isolating switch on the vacuum interrupter in the epoxy resin pole, described operating mechanism is the New-type bifunctional spring operating mechanism, be arranged on the front end of integrated combined electrical apparatus, its upper end torque spring energy store mechanism drives tri-station isolating switch rotating shaft action and realizes folding, and lower end wind spring stored energy mechanism drives the branch of other electric elements vacuum interrupter, close, thread off and operate.
The mechanical chain mechanism of described New-type bifunctional spring operating mechanism comprises: the fixed head on the cabinet door drives the chain roller of tri-station isolating switch, and then drives the tri-station isolating switch baffle plate; In addition, the breaker open operation mechanism action drives bearing pin, and then drives the action of tri-station isolating switch baffle plate; Again, the block that is provided with on the tri-station isolating switch transshipment acitivity presses the junction panel action, and then the action of control breaker switching-on mechanism.
Current sensor installing space and Wiring trough are reserved in described epoxy resin seal pole lower end.
Adopt technique scheme, the utlity model has following advantage:
1, between tri-station isolating switch--the vacuum circuit-breaker (on-load switch, combined electrical apparatus), the copper bar that does not connect two kinds of electric elements, the substitute is the last outlet of vacuum circuit-breaker (vacuum load switch, vacuum combined electrical equipment) arc control device, be the disconnecting link rotating fulcrum of tri-station isolating switch, minimizing by a relatively large margin the space of combined electrical apparatus in switch cubicle.
2, the utility model has carried out standardization and General design with three kinds of dissimilar electric elements of vacuum circuit-breaker (on-load switch, combined electrical apparatus).As long as change epoxy resin seal pole and minority parts, just can be assembled into, three kinds of electric elements of vacuum circuit-breaker (on-load switch, combined electrical apparatus), the installation dimension of three kinds of electric elements is all the same with overall dimension, and the user uses easily.
3, the function addition of two kinds of switch elements will innovating of integrated combined electrical apparatus has reached the function that equals 3 kinds of conventional switch elements; Integrated combined electrical apparatus is integrated tri-station isolating switch and circuit breaker (vacuum load switch, vacuum combined electrical equipment), and structurally tri-station isolating switch has obvious fracture, and has bus-bar room and cable vault's dividing plate of switch cubicle simultaneously.Under the prerequisite that has guaranteed " five is anti-" chain reliability, new difunctional spring operating mechanism, new mechanical chain part operation program are: behind the breaker open operation---can operate tri-station isolating switch to the isolated location, tri-station isolating switch is in the isolated location, circuit breaker can not be operated--can operate tri-station isolating switch again to earthing position---and close and close circuit breaker, realized cut cable ground connection.Realized that from function the cut cable ground connection of no cut cable ground connection switch has been save cut cable ground connection switch, has saved the cable space of switch cubicle, has reduced the source of trouble, also reduced cost simultaneously.
4, adopt difunctional spring operating mechanism, the design of mechanism is made to measure according to integrated combined electrical apparatus, the upper end that side is adorned integrated combined electrical apparatus is a tri-station isolating switch, the lower end is the epoxy resin seal pole of vacuum circuit-breaker (on-load switch, combined electrical apparatus), and front end is difunctional spring mechanism.Body function 1: the torque spring energy store of mechanism upper end, rotate splined shaft, realize tri-station isolating switch deciliter, irrelevant with operator's operating physical force size, speed.Body function 2: the wind spring energy storage of mechanism lower end, realize vacuum circuit-breaker (on-load switch, combined electrical apparatus) branch, close, operation such as dropout.
5, novel mechanical interlocking gear, difunctional spring operating mechanism is tri-station isolating switch--the mechanical chain of realizing compactness between the vacuum circuit-breaker (on-load switch, combined electrical apparatus) has been created condition.When tri-station isolating switch during at closing position, vacuum circuit-breaker (on-load switch, combined electrical apparatus) can be operated.During vacuum circuit-breaker (on-load switch, combined electrical apparatus) closing position, the tri-station isolating switch handle hole is obstructed and cannot operates.Tri-station isolating switch is when the isolated location, and vacuum circuit-breaker (on-load switch, combined electrical apparatus) cannot be operated.Tri-station isolating switch is when earthing position, and vacuum circuit-breaker (on-load switch, combined electrical apparatus) can be operated, and both: vacuum circuit-breaker (on-load switch, combined electrical apparatus) closes a floodgate, and has realized cut cable ground connection.The user has saved the earthed switch of cut cable, realizes cut cable ground connection function equally.The source of trouble has been reduced in the earthed switch of not only saving cut cable shared space in cabinet simultaneously.Because during vacuum circuit-breaker (on-load switch, combined electrical apparatus) closing position, tri-station isolating switch cannot be operated.So separately vacuum circuit-breaker (on-load switch, combined electrical apparatus) could be operated tri-station isolating switch to the isolated location.Tri-station isolating switch is at earthing position, during vacuum circuit-breaker (on-load switch, combined electrical apparatus) closing position, the horizontal movement latch that the upper end of mechanism case is provided with shrinks in case, and door can be opened, the handle hole that door is opened the back tri-station isolating switch is obstructed, and tri-station isolating switch can't be operated.The novel mechanical interlocking gear has guaranteed operation sequenceization and " five is anti-" simple and reliable realization of function.New mechanical is chain have been realized.No feeder cable end ground connection switch, feeder cable end ground connection have been realized simultaneously.
6, integrated combined electrical apparatus is applicable to, behind A, B, the C in before the box stationary cabinet arranged.This kind switch cubicle generally has bus-bar room, switching cable chamber, low pressure relaying protection chamber, three intervals that isolate fully.The epoxy resin seal pole of integrated combined electrical apparatus, three-phase epoxy resin seal pole is installed the back and is formed dividing plate, and nature is separated bus-bar room and switching cable chamber, and the user need not installed dividing plate additional, and the user uses easily.
7, described epoxy resin seal pole lower end reservation current sensor installing space and Wiring trough, current sensor can be installed in very easily, reserved the epoxy resin seal pole lower end that nut is installed, the secondary line of current sensor can be walked in the Wiring trough that the epoxy resin seal pole is reserved.For can selecting current sensor, the user provides convenience.
8, the utility model can provide non-maintaining protective device, by the current sensor that can power, provides protective device small voltage signal and power supply, and normal operation does not need additional power source.
The utility model is the integrated of multiple new and high technology: the user is as long as select integrated combined electrical apparatus, just can realize the function of isolating switch, circuit breaker end of incoming cables and cut cable ground connection, vacuum circuit-breaker (on-load switch, combined electrical apparatus), but can also select the operated type current sensor.The epoxy resin seal pole of integrated combined electrical apparatus; reserved current sensor nut inserts and Wiring trough are installed, but the operated type current sensor provides for the computer line protective device accurately; use for measurement and protection with the small voltage signal of the proportional wide range of primary current; the power supply of protective device can also be provided, be provided with test simultaneously and check and accept the loop, check debugging before the energising; only need with general equipment; connect test and check and accept the loop, can operate, made things convenient for the equipment acceptance inspection.Selected integrated combined electrical apparatus current transformer unshakable in one's determination to be arranged without the bigger traditional electrical magnetic-type of volume.
Integrated combined electrical apparatus series of the present utility model comprises: integrated tri-station isolating switch+vacuum circuit-breaker, integrated tri-station isolating switch+on-load switch, integrated tri-station isolating switch+switch-fuse combination.Two kinds of switch element additions that novel integrated combined electrical apparatus will be innovated have reached and have equaled the function that 3 kinds of conventional switch elements just can possess.Novel integrated combined electrical apparatus has carried out seriation, standardized designs simultaneously, novel integrated combined electrical apparatus series, unified installation dimension, unified external form, unified fixed form are arranged, be breaker cabinet type and on-load switch, any permutation and combination of switch-fuse combination cabinet type provides convenience.
Description of drawings:
Below with accompanying drawing the utility model is described in detail:
Fig. 1 is the perspective view of the utility model embodiment one;
Fig. 2 is the write perspective view of type embodiment two of this practicality;
Fig. 3 is the perspective view of the utility model embodiment three;
Fig. 4 colludes for the planar structure signal of the real Jing example one of the utility model;
The planar structure schematic diagram of Fig. 5 the utility model embodiment two;
Fig. 6 is the planar structure schematic diagram of the utility model embodiment three;
Fig. 7 is Fig. 4 cross-sectional view;
Fig. 8 is the utility model embodiment three cross-sectional view;
Fig. 9 is difunctional spring mechanism and interlocking gear structural representation.
Embodiment:
Below in conjunction with drawings and Examples the present invention and utility model are described in detail:
As Fig. 1-execution mode of the present utility model shown in Figure 9, the novel all-in-one combined electrical apparatus, comprise tri-station isolating switch 1, the vacuum circuit-breaker 2 supporting with it, on-load switch 3, on-load switch adds the combined electrical apparatus 4 of fuse, operating mechanism 5, described tri-station isolating switch switch is arranged on the top of integrated combined electrical apparatus, by preceding 11, in 12, arrange in back 13, vacuum circuit-breaker 2, on-load switch 3, switch-fuse combination 4 is enclosed in the epoxy resin seal pole 6 admittedly, be arranged on the below of isolating switch 1, and described epoxy resin seal pole 6 is stitched together and forms dividing plate and separate bus-bar room and switching cable chamber, in addition, vacuum circuit-breaker 2, on-load switch 3, the last outlet 7 of switch-fuse combination 4 forms the disconnecting link rotating fulcrum 14 of tri-station isolating switch, described operating mechanism 5 is the New-type bifunctional spring operating mechanism, be arranged on the front end of integrated combined electrical apparatus, its upper end torque spring energy store mechanism 51 drives tri-station isolating switch rotating shaft action and realizes folding, and lower end wind spring stored energy mechanism 52 drives the branch of other electric elements, close, thread off and operate.
The mechanical chain mechanism of described New-type bifunctional spring operating mechanism comprises: the fixed head on the cabinet door drives the chain roller 15 of tri-station isolating switch, and then drives tri-station isolating switch baffle plate 16; In addition, the breaker open operation mechanism action drives bearing pin 17, and then drives 16 actions of tri-station isolating switch baffle plate; Again, the block 18 that is provided with on the tri-station isolating switch transshipment acitivity presses junction panel 19 actions, and then the action of control breaker switching-on mechanism.
Current sensor installing space and Wiring trough also can be reserved in described in actual use epoxy resin seal pole lower end.
The utility model is fixed side dress vacuum circuit-breaker (vacuum load switch, vacuum combined electrical equipment) and the integrated combined electrical apparatus of tri-station isolating switch.With traditional vacuum circuit-breaker (vacuum load switch, vacuum load switch-fuse combined electric apparatus) and tri-station isolating switch element ratio independently separately, need not connect copper bar between the two.The last outlet of vacuum circuit-breaker (vacuum load switch, vacuum combined electrical equipment) arc control device, it is the disconnecting link rotating fulcrum of tri-station isolating switch, minimizing by a relatively large margin the space of combined electrical apparatus in switch cubicle, the user can be with same cabinet type, vacuum circuit-breaker (on-load switch, combined electrical apparatus) is installed, dissimilar main electric elements satisfy the requirement of different schemes.The epoxy resin seal pole of vacuum circuit-breaker (vacuum load switch, vacuum combined electrical equipment) has also been reserved the installing space and the Wiring trough of current sensor, for the user provides more choices.
The function addition of two kinds of switch elements that integrated combined electrical apparatus will be innovated has reached the function that equals 3 kinds of conventional switch elements; Integrated combined electrical apparatus is integrated tri-station isolating switch and circuit breaker, and structurally tri-station isolating switch has obvious fracture, and has bus-bar room and cable vault's dividing plate of switch cubicle simultaneously.Under the prerequisite that has guaranteed " five is anti-" chain reliability, new difunctional spring operating mechanism, new mechanical chain part operation program are: behind the breaker open operation---can operate tri-station isolating switch to the isolated location, tri-station isolating switch is in the isolated location, circuit breaker can not be operated--can operate tri-station isolating switch again to earthing position---and close and close circuit breaker, realized cut cable ground connection.Realized that from function the cut cable ground connection of no cut cable ground connection switch has been save cut cable ground connection switch, has saved the cable space of switch cubicle, has reduced the source of trouble, also reduced cost simultaneously.
Adopt difunctional spring operating mechanism, the design of mechanism is made to measure according to integrated combined electrical apparatus, the upper end that side is adorned integrated combined electrical apparatus is a tri-station isolating switch, and the lower end is the epoxy resin seal pole of vacuum circuit-breaker (on-load switch, combined electrical apparatus), and front end is difunctional spring mechanism.Body function 1: the torque spring energy store of mechanism upper end, rotate splined shaft, realize tri-station isolating switch deciliter, irrelevant with operator's operating physical force size, speed.Body function 2: the wind spring energy storage of mechanism lower end, realize vacuum circuit-breaker (on-load switch, combined electrical apparatus) branch, close, operation such as dropout.
Difunctional spring operating mechanism is tri-station isolating switch--the mechanical chain of realizing compactness between the vacuum circuit-breaker (on-load switch, combined electrical apparatus) has been created condition.
New mechanical chain operation sequence is:
Send:--fixed head on the cabinet door is pressed the chain roller of tri-station isolating switch, and--baffle plate of tri-station isolating switch moves downward, and--handle hole that satisfies tri-station isolating switch exposes one of condition, and----handle hole that satisfies tri-station isolating switch exposes two of condition, and--2 conditions all satisfy--can operate tri-station isolating switch to the isolated location--, and-tri-station isolating switch is to being isolated in the position for breaker open operation for pass cabinet door, depress junction panel, circuit breaker can not be operated--operates tri-station isolating switch again and closes position--circuit breaker can divide closing operation---breaker closing major loop energising to closing.
-tri-station isolating switch is to being isolated in the position in outage: breaker open operation--the operation tri-station isolating switch is to isolated location--, depress junction panel, circuit breaker can not be operated--operate tri-station isolating switch again to earthing position--circuit breaker can divide closing operation--breaker closing cut cable ground connection--can open the cabinet door---open cabinet behind the door tri-station isolating switch can not operate.
But adopt the operated type electronic sensor; provide for the computer line protective device accurately; use for measurement and protection with the small voltage signal of the proportional wide range of primary current; the power supply of protective device can also be provided, be provided with test simultaneously and check and accept the loop, check debugging before the energising; only need with general equipment; connect test and check and accept the loop, can operate, made things convenient for the equipment acceptance inspection.
The utility model adopts non-maintaining protective device, but by the operated type electronic sensor, provides protective device small voltage signal and power supply, and normal operation does not need additional power source.
The integrated combined electrical apparatus of the utility model: be fixed, the side dress, vacuum circuit-breaker (on-load switch, combined electrical apparatus) and the integrated combined electrical apparatus series of products of tri-station isolating switch, isolating switch+vacuum circuit-breaker (vacuum load switch with two stations, vacuum combined electrical equipment) ratio, integrated combined electrical apparatus, though have only an earth point, but vacuum circuit-breaker (on-load switch, combined electrical apparatus) but two ends ground connection all, isolating switch+vacuum circuit-breaker (vacuum load switch of two stations, vacuum combined electrical equipment) must install the earthed switch of cut cable additional, the ground connection that could realize cut cable.
The tri-station isolating switch of integrated combined electrical apparatus has only an axle that rotates disconnecting link, and the insulated tension pole that does not have a like product and the operating axis that is welded with connecting lever etc. have reduced the source of trouble.The spring operating mechanism of tri-station isolating switch is the part of difunctional self-lubricating spring operating mechanism, switch deciliter irrelevant with operator's strength size, speed.Need not the operator operate the back with the latch location, operation is simple and reliable.Difunctional self-lubricating spring operating mechanism also is a domestic initiation.
The profile that integrated combined electrical apparatus is unified, unified installation dimension are installed in the cabinet, and dividing plate need not be installed additional in switch cubicle factory, and bus-bar room and switching cable chamber have just been cut apart in the splicing of three-phase epoxy resin seal pole naturally, and user installation is used easily.
Integrated combined electrical apparatus epoxy resin seal three-phase pole has been reserved the installing space of current sensor, as long as the user need be installed additional.Current sensor can provide power supply to protective device, and normal running protection device must additional power source.
Claims (3)
1. novel all-in-one combined electrical apparatus, comprise tri-station isolating switch, vacuum circuit-breaker supporting or on-load switch or switch-fuse combination and operating mechanism with it, it is characterized in that: described tri-station isolating switch switch is arranged on the top of integrated combined electrical apparatus, before pressing, in, after arrange, the combined electrical apparatus that circuit breaker or on-load switch or on-load switch add fuse is enclosed in the epoxy resin seal pole admittedly, be arranged on the below of isolating switch, and described epoxy resin seal pole is stitched together and forms dividing plate and separate bus-bar room and switching cable chamber, in addition, the last outlet that circuit breaker or on-load switch or on-load switch add the combined electrical apparatus of fuse forms the disconnecting link rotating fulcrum of tri-station isolating switch, described operating mechanism is the New-type bifunctional spring operating mechanism, be arranged on the front end of integrated combined electrical apparatus, its upper end torque spring energy store mechanism drives tri-station isolating switch rotating shaft action and realizes folding, and lower end wind spring stored energy mechanism drives the branch that circuit breaker or on-load switch or on-load switch add the combined electrical apparatus of fuse, close, thread off and operate.
2. novel all-in-one combined electrical apparatus as claimed in claim 1, it is characterized in that: described New-type bifunctional spring operating mechanism is a mechanical chain mechanism, comprise: the fixed head on the cabinet door drives the chain roller of tri-station isolating switch, and then drives the tri-station isolating switch baffle plate; In addition, the breaker open operation mechanism action drives bearing pin, and then drives the action of tri-station isolating switch baffle plate; Again, the block that is provided with on the tri-station isolating switch rotating mechanism presses the junction panel action, and then the action of control breaker switching-on mechanism.
3. novel all-in-one combined electrical apparatus as claimed in claim 1 or 2 is characterized in that: current sensor installing space and Wiring trough are reserved in described epoxy resin seal pole lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920181228XU CN201594513U (en) | 2009-11-04 | 2009-11-04 | Novel integral combined electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920181228XU CN201594513U (en) | 2009-11-04 | 2009-11-04 | Novel integral combined electric appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201594513U true CN201594513U (en) | 2010-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920181228XU Expired - Lifetime CN201594513U (en) | 2009-11-04 | 2009-11-04 | Novel integral combined electric appliance |
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| CN (1) | CN201594513U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055142A (en) * | 2009-11-04 | 2011-05-11 | 厦门科力特电气有限公司 | Novel integrated combined electrical appliance |
| CN102751118A (en) * | 2012-07-23 | 2012-10-24 | 江苏大全长江电器股份有限公司 | Lower door interlocking mechanism for switch cabinet |
| CN103531378A (en) * | 2013-09-29 | 2014-01-22 | 江苏德春电力科技有限公司 | Combined switch |
| CN107359074A (en) * | 2017-06-02 | 2017-11-17 | 北京杰远电气有限公司 | A kind of vacuum switchgear |
| CN109637852A (en) * | 2018-11-02 | 2019-04-16 | 中国科学院合肥物质科学研究院 | Three-level structure of contact terminal mechanical switch for large power all-controlled mixed style direct current switch |
| CN114121541A (en) * | 2020-08-28 | 2022-03-01 | 西门子股份公司 | Gas-insulated medium or high voltage switchgear with blade contact holders |
-
2009
- 2009-11-04 CN CN200920181228XU patent/CN201594513U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055142A (en) * | 2009-11-04 | 2011-05-11 | 厦门科力特电气有限公司 | Novel integrated combined electrical appliance |
| CN102055142B (en) * | 2009-11-04 | 2014-03-05 | 厦门科力特电气有限公司 | Integrated combined electrical appliance |
| CN102751118A (en) * | 2012-07-23 | 2012-10-24 | 江苏大全长江电器股份有限公司 | Lower door interlocking mechanism for switch cabinet |
| CN103531378A (en) * | 2013-09-29 | 2014-01-22 | 江苏德春电力科技有限公司 | Combined switch |
| CN107359074A (en) * | 2017-06-02 | 2017-11-17 | 北京杰远电气有限公司 | A kind of vacuum switchgear |
| CN107359074B (en) * | 2017-06-02 | 2020-08-04 | 北京杰远电气有限公司 | Vacuum switch equipment |
| CN109637852A (en) * | 2018-11-02 | 2019-04-16 | 中国科学院合肥物质科学研究院 | Three-level structure of contact terminal mechanical switch for large power all-controlled mixed style direct current switch |
| CN114121541A (en) * | 2020-08-28 | 2022-03-01 | 西门子股份公司 | Gas-insulated medium or high voltage switchgear with blade contact holders |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100929 Effective date of abandoning: 20091104 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20100929 Effective date of abandoning: 20091104 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |