CN104505284B - Bidirectional load switchgear - Google Patents
Bidirectional load switchgear Download PDFInfo
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- CN104505284B CN104505284B CN201410759196.2A CN201410759196A CN104505284B CN 104505284 B CN104505284 B CN 104505284B CN 201410759196 A CN201410759196 A CN 201410759196A CN 104505284 B CN104505284 B CN 104505284B
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- component
- switch component
- drive link
- shutter body
- blocks
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
The invention provides a kind of Bidirectional load switchgear, including：Cabinet；First switch component and second switch component are arranged in cabinet；First blocks component and second blocks component and is movably disposed on cabinet respectively, first blocks component is linked with second switch component, when second switch component is in connected state, first blocks first blocking position of the component in first switch component is blocked, when second switch component is off, first blocks first avoidance position of the component in first switch component is avoided；Second blocks component is linked with first switch component, when first switch component is in connected state, second blocks second blocking position of the component in second switch component is blocked, when first switch component is off, second blocks second avoidance position of the component in second switch component is avoided.By the Bidirectional load switchgear, can solve the problem that and two-way incoming power is easily caused in prior art while the problem of combined floodgate.
Description
Technical field
The present invention relates to electrical equipment, in particular to a kind of Bidirectional load switchgear.
Background technology
With economic development, people are for the requirement more and more higher of power supply reliability.In electric load, three stage loads one
As allow single supply to power, in the case where there is dual power supply to be powered, stand-by power supply each other between dual power supply.When a certain power supply
When breaking down, then switch to another power supply and power supply is continued to load such that it is able to ensure the normal operation of the load.In power supply
When, reliably change between two-way power supply particularly important for powering.
At present, in dual power supply, dual power supply switching is realized using two on-load switches mainly.During use, two
When platform on-load switch carries out power supply switching, two-way incoming power is easily caused while closing a floodgate, the equipment dependability is low, easily produces
Hidden danger.
Content of the invention
Present invention is primarily targeted at a kind of Bidirectional load switchgear is provided, to solve to be easily caused in prior art
The problem that two-way incoming power is closed a floodgate simultaneously.
To achieve these goals, the present invention provides a kind of Bidirectional load switchgear, and Bidirectional load switchgear includes：
Cabinet；First switch component, is arranged in cabinet；Second switch component, is arranged in cabinet；Bidirectional load switchgear is also wrapped
Include：First blocks component, is movably disposed on cabinet, and first blocks component and second switch component links, and opens when second
When closing component and being in connected state, first blocks component in blocking the first blocking position of first switch component, opens when second
When pass component is off, first blocks first avoidance position of the component in first switch component is avoided；Second blocks
Component, is movably disposed on cabinet, and second blocks component is linked with first switch component, when first switch component is in company
During logical state, second blocks second blocking position of the component in second switch component is blocked, when first switch component is in disconnected
During open state, second blocks second avoidance position of the component in second switch component is avoided.
Further, first block component and include that the first shutter body and the first driving member, the first shutter body movably set
Put on cabinet, one end of the first driving member is connected with the first shutter body, the first driving member is linked with second switch component, and second opens
Close component and the movement of the first shutter body is controlled by the first driving member；Second blocks component includes the second shutter body and the second transmission
Part, the second shutter body are movably disposed on cabinet, and one end of the second driving member is connected with the second shutter body, the second driving member with
First switch component links, and first switch component controls the movement of the second shutter body by the second driving member.
Further, the first driving member includes the first drive link, is provided with the first cunning on the first drive link in the axial direction
Groove, the first end of the first drive link are connected with the first shutter body, and second switch component has first be arranged in the first chute
Head is stirred, when second switch component is connected, first stirs head drives the first drive link to move by abutting the cell wall of the first chute
Dynamic, so that the first shutter body being connected with the first drive link is in the first blocking position；First blocks component also includes that first is multiple
Position part, the first return unit abuts with the second end of the first drive link, and when disconnection second switch component, the first drive link passes through the
One return unit resets, so that the first shutter body being connected with the first drive link avoids position in first；Second driving member includes
Second drive link, is provided with the second chute in the axial direction on the second drive link, the first end of the second drive link is blocked with second
Body connects, and first switch component has be arranged in the second chute second to stir head, when first switch component is connected, second
Stir head and the movement of the second drive link is driven by abutting the cell wall of the second chute, so that be connected with the second drive link second is blocked
Body is in the second blocking position；Second blocks component also includes the second of the second return unit, the second return unit and the second drive link
End abuts, and when first switch component is disconnected, the second drive link is resetted by the second return unit, so as to be connected with the second drive link
The second shutter body in second avoid position.
Further, the first shutter body and the second shutter body are shutter.
Further, gathering sill is provided with shutter, be provided with the lead column coordinated with gathering sill, lead column on cabinet
It is arranged in gathering sill.
Further, the first return unit is (the first back-moving spring, and the second return unit is second back-moving spring.
Further, first switch component includes the first closing operation axle and the first division operating shaft, second switch component
Including the second closing operation axle and the second division operating shaft；Second division operating shaft and the second closing operation axle synchronous axial system, the
One stirs head is arranged in the second division operating shaft, and the first driving member is stirred head with first in the second division operating shaft and is connected,
Second division operating shaft drives the movement of the first driving member, the first shutter body to be used for blocking the first closing operation axle；First division is grasped
Make axle and the first closing operation axle synchronous axial system, second stirs head is arranged in the first division operating shaft, the second driving member and
In one division operating shaft second stirs head connection, and the first division operating shaft drives the movement of the second driving member, the second shutter body to use
In blocking the second closing operation axle.
Further, Bidirectional load switchgear also includes：First security component, including：First microswitch, first are led
To pipe and the 3rd back-moving spring, the first microswitch is connected with the circuit of first switch component, and the first guide pipe is socketed in first
On closing operation axle, the first guide pipe can be provided with the first guide pipe and first along the axial movement of the first closing operation axle
The flange that microswitch coordinates, the first guide pipe have the first open position for opening the first microswitch and disconnect the first fine motion
First open position of switch, the 3rd back-moving spring is sleeved on the outside of the first closing operation axle, one end of the 3rd back-moving spring with
Cabinet connects, and the other end of the 3rd back-moving spring is connected with the end face of the first guide pipe；Second security component, including：Second is micro-
Dynamic switch, the second guide pipe and the 4th back-moving spring, the second microswitch are connected with the circuit of second switch component, and second is oriented to
Pipe box is connected on the second closing operation axle, and the second guide pipe can be along the axial movement of the second closing operation axle, on the second guide pipe
Be provided with the second microswitch coordinate flange, the second guide pipe have open the second microswitch the second open position and
The second open position of the second microswitch is disconnected, the 4th back-moving spring is sleeved on the outside of the second closing operation axle, the 4th resets
One end of spring is connected with cabinet, and the other end of the 4th back-moving spring is connected with the end face of the second guide pipe.
Application technical scheme, the Bidirectional load switchgear provided by the present invention arrange the on cabinet
One blocks component and second blocks component, and blocks component by first and be connected with second switch component, and second blocks component and
One switch module connects, and drives first to block component movement by second switch component, so as to connect when second switch component is in
During logical state, first blocks component is located at the first blocking position for blocking first switch component, in second switch component in disconnected
During open state, first blocks component is located at the first avoidance position for avoiding first switch component；In the same manner, component is blocked by second
It is connected with first switch component, drives second to block component movement by first switch, make first switch component be in connected state
During state, second blocks component is located at the second blocking position for blocking second switch component, in second switch component in disconnection shape
During state, second blocks component is located at the second avoidance position for avoiding second switch component.So that, when first switch component or
When second switch component has any one to be in connected state, the switches set of another disconnection can be blocked by blocking component
Part, when can so avoid staff switch module being in connected state wherein, connects another switch module, solves
Easily there is two-way incoming power in prior art of having determined while closing a floodgate, improve the reliability of the equipment, reduce safety
Hidden danger.
Description of the drawings
The Figure of description for constituting the part of the application is used for providing a further understanding of the present invention, and the present invention shows
Meaning property embodiment and its illustrated for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the structural representation of the Bidirectional load switchgear of offer according to embodiments of the present invention；
Fig. 2 shows that the first of offer according to embodiments of the present invention blocks the structural representation of component；
Fig. 3 shows the structural representation of the first security component of offer according to embodiments of the present invention.
Wherein, above-mentioned accompanying drawing includes that the following drawings is marked：
10th, cabinet；20th, first switch component；21st, the first closing operation axle；30th, second switch component；31st, the second division
Operating shaft；41st, first component is blocked；411st, the first shutter body；411a, gathering sill；412nd, the first driving member；413rd, return unit；
42nd, second component is blocked；51st, the first microswitch；52nd, the first guide pipe；53rd, the 3rd back-moving spring.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combine.Below with reference to the accompanying drawings and in conjunction with the embodiments describing the present invention in detail.
As depicted in figs. 1 and 2, a kind of Bidirectional load switchgear for providing according to embodiments of the present invention, the Bidirectional load
Switchgear includes：Cabinet 10, first switch component 20, second switch component 30, first are blocked component 41 and second and block group
Part 42.Wherein, first switch component 20 and second switch component 30 are arranged in cabinet 10；First blocks component 41 may move
Be arranged on cabinet 10, first blocks component 41 is linked with second switch component 30, when second switch component 30 in connection
During state, first blocks first blocking position of the component 41 in first switch component 20 is blocked, at second switch component 30
When off-state, first blocks first avoidance position of the component 41 in first switch component 20 is avoided；Second blocks component
42, it is movably disposed on cabinet 10, second blocks component 42 is linked with first switch component 20, when first switch component 20
When being in connected state, second blocks second blocking position of the component 42 in second switch component 30 is blocked, and works as first switch
When component 20 is off, second blocks second avoidance position of the component 42 in second switch component 30 is avoided.
By Bidirectional load switchgear provided in an embodiment of the present invention, first is arranged on cabinet 10 and blocks 41 He of component
Second blocks component 42, and blocks component 41 by first and be connected with second switch component 30, and second blocks component 42 opens with first
Close component 20 to connect, drive first to block component 41 by second switch component 30 and move, so as to work as at second switch component 30
When connected state, first blocks component 41 is located at the first blocking position for blocking first switch component 20, in second switch group
When part 30 is off, first blocks component 41 is located at the first avoidance position for avoiding first switch component 20；In the same manner,
Component 42 is blocked by second to be connected with first switch component 20, drives second to block component 42 and move by first switch, make the
One switch module 20 in connected state when, second blocks component 42 is located at and blocks the second of second switch component 30 and block position
Put, when second switch component 30 is off, second blocks second that component 42 is located at avoidance second switch component 30
Avoid position.So that, when first switch component 20 or second switch component 30 have any one to be in connected state,
The switch module of another disconnection is blocked by blocking component, staff's switches set wherein can be so avoided
When part is in connected state, another switch module is connected, solve and easily there is two-way incoming power in prior art while closing
The problem of lock, improves the reliability of the equipment, reduces potential safety hazard.
In the present embodiment, first block component 41 and include the first shutter body 411 and the first driving member 412, first blocks
Body 411 is movably disposed on cabinet 10, and one end of the first driving member 412 is connected with the first shutter body 411, the first driving member
412 are linked with second switch component 30, and second switch component 30 controls the first shutter body 411 by the first driving member 412 and moves.
Wherein, specifically, the first shutter body 411 can be shutter or other easy structures；First driving member 412 includes first
Drive link, the first drive link are in axial direction being provided with the first chute, the first end of the first drive link and the first shutter body 411
Connection.Second switch component 30 is connected with the first drive link for convenience, arranges first and stir head on second switch component 30,
And this first is stirred head and be arranged in the first chute.
When second switch component 30 is connected, first stirs head rotates with second switch component 30, and by abutting first
The cell wall of chute drives the movement of the first drive link, so that the first shutter body 411 being connected with the first drive link is in and blocks first
First blocking position of switch module 20, so that staff can not carry out connection operation to first switch component 20；Additionally,
First blocks component 41 also includes the first return unit 413, and which is abutted with the second end of the first drive link, is opened when turning off second
Close component 30 operation when, the first drive link can be resetted by the first return unit 413, so that be connected with the first drive link the
First avoidance position of one shutter body 411 in first switch component 20 is avoided, so that work people personnel can be to first
Switch module 20 carries out connection operation.
In the present embodiment, second block component 42 and include the second shutter body and the second driving member, the second shutter body is removable
Arranged on cabinet 10 dynamicly, the second shutter body can be shutter or other easy structures；One end of second driving member with
Second shutter body connects, and the second driving member is linked with first switch component 20, and first switch component 20 passes through the second driving member control
Make the movement of the second shutter body.Wherein, specifically, the second driving member includes the second drive link, on the second drive link in the axial direction
The second chute is provided with, the first end of the second drive link is connected with the second shutter body.First switch component 20 and for convenience
One drive link connects, and is provided with second and stirs head on first switch component 20, and second stirs head and be arranged on the second cunning this
In groove.
When first switch component 20 is connected, second stirs head rotates with first switch component 20, and by abutting second
The cell wall of chute drives the movement of the second drive link, so that the second shutter body being connected with the second drive link blocks position in second
Put；Second blocks component 42 also includes that the second return unit 413, the second return unit 413 are abutted with the second end of the second drive link, when
When disconnecting first switch component 20, the second drive link is resetted by the second return unit 413, so that be connected with the second drive link the
Two shutter bodies avoid position in second.
Wherein, the first shutter body 411 and the movement of the second shutter body for convenience, is each provided with gathering sill on its shutter
411a, and the position of the two shutters corresponding arranges lead column on cabinet 10, a lead column is correspondingly arranged at one and leads
Into groove 411a.Also, in order to simplify structure, it is (the first back-moving spring by the first return unit 413, by the second return unit 413 is
Second back-moving spring.
In the present embodiment, the first switch component 20 includes the first closing operation axle 21 and the first division operating shaft, the
Two switch modules 30 include the second closing operation axle and the second division operating shaft 31；Second division operating shaft 31 is in practical operation
With the second closing operation axle synchronous axial system.By discovery in operation, the second closing operation axle completes to close a floodgate simply by rotation
Operation, can not represent gate-dividing state, and the second division operating shaft 31 can represent the state of separating brake or combined floodgate, thus select second
Input shaft of the division operating shaft 31 as the first drive link of control.Specifically, head is stirred by first be arranged on the second division operation
On axle 31, the first driving member 412 is stirred head with first in the second division operating shaft 31 and is connected so that the second division operating shaft 31
The first driving member 412 can be driven to move, so that the first shutter body 411 can be blocked or avoid the first closing operation axle 21.
Similarly, the first division operating shaft and 21 synchronous axial system of the first closing operation axle, second stirs head is arranged on first
In division operating shaft, the second driving member is stirred head with second in the first division operating shaft and is connected, and makes the first division operating shaft band
Dynamic second driving member movement, so that the second shutter body can be blocked or avoid the second closing operation axle.
As shown in figure 3, in the present embodiment, the Bidirectional load switchgear also includes：First security component, first peace
Whole assembly includes：First microswitch 51, the first guide pipe 52 and the 3rd back-moving spring 53.Wherein, the first microswitch 51
Connect with the circuit of first switch component 20, the first guide pipe 52 is socketed on the first closing operation axle 21, the first guide pipe 52
First coordinated with the first microswitch 51 can be provided with the axial movement of the first closing operation axle 21, the first guide pipe 52
Flange, the first guide pipe 52 have the first open position for opening the first microswitch 51 and disconnect the of the first microswitch 51
One open position, the 3rd back-moving spring 53 are sleeved on the outside of the first closing operation axle 21, one end of the 3rd back-moving spring 53 and cabinet
Body 10 connects, and the other end of the 3rd back-moving spring 53 is connected with the end face of the first guide pipe 52.
In this embodiment, staff is being connected to the first closing operation axle 21 or during opening operation, first will be
Switch knob on first switch component 20 disconnects, and key is being connected with the first closing operation axle 21, in connection procedure, key
The first guide pipe 52 can be promoted to moving near the direction of the first closing operation axle 21, the first guide pipe 52 in moving process, is located at
On the first flange can touch the first microswitch 51, and the first microswitch 51 is disconnected, operating personnel close a floodgate to first and grasp
Make after axle 21 connects or disconnect, key to be extracted, 53 elastic force correcting action of the 3rd back-moving spring received by the first guide pipe 52, and
Connect the first microswitch 51, after end of operation, operating personnel connect switch knob, equipment is normally run.In actual behaviour
In work, as operation is due to being possible to forget to close switch knob, the first closing operation axle 21 is carried out in the case of energization
Operation can be dangerous, in order to ensure personal security, designs the first security component so that operating personnel are to the first closing operation axle
21 when being operated, and can cut off linear quadratic control circuit by the first microswitch 51, it is ensured that operator safety is operated.
The Bidirectional load switchgear also includes：Second security component, second security component include：Second fine motion is opened
Pass, the second guide pipe and the 4th back-moving spring.Wherein, the second microswitch is connected with the circuit of second switch component 30, the
Two guide pipes are socketed on the second closing operation axle, and the second guide pipe can be led along the axial movement of the second closing operation axle, second
The second flange coordinated with the second microswitch is provided with pipe, and the second guide pipe has opens the second of the second microswitch
Second open position of the second microswitch of open position and disconnection, the 4th back-moving spring are sleeved on outside the second closing operation axle
Side, one end of the 4th back-moving spring are connected with cabinet 10, and the other end of the 4th back-moving spring is connected with the end face of the second guide pipe.
As the structure of the first security component and the second security component is identical, act on similar, in order to prevent operating personnel
Maloperation, to can refer to the first security component with the actual mechanical process of the second security component, will not be described here.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (8)
1. a kind of Bidirectional load switchgear, the Bidirectional load switchgear include：
Cabinet (10)；
First switch component (20), is arranged in the cabinet (10)；
Second switch component (30), is arranged in the cabinet (10)；
Characterized in that, the Bidirectional load switchgear also includes：
First blocks component (41), is movably disposed on the cabinet (10), described first block component (41) with described
Second switch component (30) links, and when described second switch component (30) are in connected state, described first blocks component
(41) the first blocking position in first switch component (20) are blocked, when described second switch component (30) are in disconnection
During state, described first blocks first avoidance position of the component (41) in first switch component (20) are avoided；
Second blocks component (42), is movably disposed on the cabinet (10), described second block component (42) with described
First switch component (20) links, and when described first switch component (20) are in connected state, described second blocks component
(42) the second blocking position in second switch component (30) are blocked, when described first switch component (20) are in disconnection
During state, described second blocks second avoidance position of the component (42) in second switch component (30) are avoided；
Described first blocks component (41) including the first shutter body (411) and the first driving member (412), first shutter body
(411) it is movably disposed on the cabinet (10), the one end of the first driving member (412) and first shutter body
(411) connect, the first driving member (412) are linked with described second switch component (30), second switch component (30)
Described first shutter body (411) are controlled by described first driving member (412) mobile；
Described first driving member (412) include the first drive link, are provided with the first cunning in the axial direction on first drive link
Groove, the first end of first drive link are connected with the first shutter body (411), described second switch component (30) have set
First put in first chute stirs head, and when second switch component (30) are connected, described first stirs head leads to
Cross and abut the cell wall of first chute and drive first drive link movement, so that described in being connected with first drive link
First shutter body (411) is in first blocking position；
Described first switch component (20) include the first closing operation axle (21) and the first division operating shaft, the second switch group
Part (30) includes the second closing operation axle and the second division operating shaft (31)；
Second division operating shaft (31) and the second closing operation axle synchronous axial system, described first stirs head is arranged on institute
State in the second division operating shaft (31), first group on the first driving member (412) and the second division operating shaft (31)
Dynamic head connection, described second division operating shaft (31) drive described first driving member (412) mobile, first shutter body
(411) it is used for blocking the first closing operation axle (21)；
Second security component, including：Second microswitch, the second guide pipe and the 4th back-moving spring, second microswitch
Connect with the circuit of second switch component (30), second guide pipe is socketed on the second closing operation axle, institute
State the second guide pipe to be provided with the axial movement of the second closing operation axle, second guide pipe and described second
The flange that microswitch coordinates, second guide pipe have the second open position and disconnection for opening second microswitch
Second open position of second microswitch, the 4th back-moving spring are sleeved on the outside of the second closing operation axle,
One end of 4th back-moving spring is connected with the cabinet (10), and the other end of the 4th back-moving spring is led with described second
Connect to the end face of pipe.
2. Bidirectional load switchgear according to claim 1, it is characterised in that
Described second blocks component (42) including the second shutter body and the second driving member, and second shutter body is movably disposed
On cabinet (10), one end of second driving member is connected with second shutter body, second driving member with described
First switch component (20) links, and described first switch component (20) control second shutter body by second driving member
Mobile.
3. Bidirectional load switchgear according to claim 2, it is characterised in that
Described first blocks component (41) also includes that the first return unit (413), the first return unit (413) are passed with described first
Second end of lever abuts, and when second switch component (30) are disconnected, first drive link resets by described first
Part (413) resets, so that described first shutter body (411) for being connected with first drive link avoid position in described first
Put；
Second driving member includes the second drive link, is provided with the second chute, institute on second drive link in the axial direction
The first end for stating the second drive link is connected with second shutter body, and described first switch component (20) have and are arranged on described the
In two chutes second stirs head, and when first switch component (20) are connected, described second stirs head by described in abutting
The cell wall of the second chute drives the second drive link movement, so that second shutter body being connected with second drive link
It is in second blocking position；
Described second blocks component (42) also includes the second return unit, second return unit and the second of second drive link
End abuts, and when first switch component (20) are disconnected, second drive link is resetted by second return unit, so that
Second shutter body being connected with second drive link avoids position in described second.
4. Bidirectional load switchgear according to claim 2, it is characterised in that the first shutter body (411) and
Two shutter bodies are shutter.
5. Bidirectional load switchgear according to claim 4, it is characterised in that be provided with gathering sill on the shutter
(411a) lead column coordinated with the gathering sill (411a) is provided with cabinet (10), and the lead column is arranged on institute
State in gathering sill (411a).
6. Bidirectional load switchgear according to claim 3, it is characterised in that described first return unit (413) are the
One back-moving spring, second return unit are second back-moving spring.
7. Bidirectional load switchgear according to claim 3, it is characterised in that
The first division operating shaft and the first closing operation axle (21) synchronous axial system, described second stirs head is arranged on institute
State in the first division operating shaft, second driving member is stirred head with second in the first division operating shaft and is connected, described
First division operating shaft drives the second driving member movement, second shutter body to be used for blocking second closing operation
Axle.
8. Bidirectional load switchgear according to claim 7, it is characterised in that the Bidirectional load switchgear is also wrapped
Include：
First security component, including：First microswitch (51), the first guide pipe (52) and the 3rd back-moving spring (53), described
First microswitch (51) is connected with the circuit of first switch component (20), and the first guide pipe (52) are socketed in described
On first closing operation axle (21), the first guide pipe (52) can along the axial movement of the first closing operation axle (21),
The flange coordinated with the first microswitch (51), the first guide pipe (52) are provided with first guide pipe (52)
Have the first of the first open position and disconnection the first microswitch (51) for opening the first microswitch (51) to break
Open position, the 3rd back-moving spring (53) are sleeved on the outside of the first closing operation axle (21), the 3rd back-moving spring
(53) one end is connected with the cabinet (10), the other end of the 3rd back-moving spring (53) and the first guide pipe (52)
End face connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410759196.2A CN104505284B (en) | 2014-12-10 | 2014-12-10 | Bidirectional load switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410759196.2A CN104505284B (en) | 2014-12-10 | 2014-12-10 | Bidirectional load switchgear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104505284A CN104505284A (en) | 2015-04-08 |
| CN104505284B true CN104505284B (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410759196.2A Active CN104505284B (en) | 2014-12-10 | 2014-12-10 | Bidirectional load switchgear |
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| CN (1) | CN104505284B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100631004B1 (en) * | 2004-12-07 | 2006-10-04 | 엘에스산전 주식회사 | Earthing apparatus of ring main unit |
| CN101340066B (en) * | 2007-07-05 | 2010-09-29 | 北京双杰电气股份有限公司 | Solid insulating fully enclosed looped network cabinet |
| CN203165731U (en) * | 2013-01-31 | 2013-08-28 | 浙江科润电力设备有限公司 | Load switch operating mechanism |
| CN103681034B (en) * | 2013-12-31 | 2016-08-17 | 北京双杰电气股份有限公司 | Ring main unit |
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| CN104505284A (en) | 2015-04-08 |
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