CN110444434A - Auxiliary earth switch and switchgear - Google Patents
Auxiliary earth switch and switchgear Download PDFInfo
- Publication number
- CN110444434A CN110444434A CN201910794344.7A CN201910794344A CN110444434A CN 110444434 A CN110444434 A CN 110444434A CN 201910794344 A CN201910794344 A CN 201910794344A CN 110444434 A CN110444434 A CN 110444434A
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- Prior art keywords
- switch
- auxiliary earth
- pressing plate
- rotation axis
- static contact
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- 230000003068 static effect Effects 0.000 claims abstract description 52
- 230000007246 mechanism Effects 0.000 claims description 12
- 239000011324 bead Substances 0.000 claims description 7
- 230000014759 maintenance of location Effects 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/003—Earthing switches
-
- 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
- H01H9/0066—Auxiliary contact devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/16—Earthing arrangements
Abstract
The present invention provides a kind of auxiliary earth switch and switchgears.The static contact of the auxiliary earth switch is located at the load-side of the fuse, and the auxiliary earth switch includes kinematic link, rotation axis, Anchor plate kit；Kinematic link is connected for the earthing switch of fuse, and the earthing switch closes a floodgate or when separating brake, and it is mobile to be able to drive the kinematic link；Rotation axis and the kinematic link are sequentially connected, to drive the rotation axis to rotate when the kinematic link is mobile；The static contact that Anchor plate kit is used to switch with the auxiliary earth contacts, with the auxiliary earth switch that closes a floodgate；The Anchor plate kit is installed in the rotation axis, to follow the rotation axis to turn to the position contacted with the static contact when the earthing switch closes a floodgate.Technical solution of the present invention structure is simple, the higher auxiliary earth switch of functional reliability.
Description
Technical field
The present invention relates to switchgear field, in particular to a kind of auxiliary earth switch and switchgear.
Background technique
For the switch-fuse combination list of existing ring network cabinet (for the switchgear in loop distribution network)
Member can protect electrically setting in ring network cabinet when being abnormal electric current and making fuse blows by ground switch earthing
It is standby.But after fuse blows, the circuit where fuse is obstructed, and earthing switch is simply positioned at the mother of fuse
Line side, therefore even if earthing switch is in earthing position, the load for the fuse load-side can not also carry out ground connection guarantor
Shield.Therefore, by holding setting auxiliary earth to switch under the fuse, ground protection is carried out with the load-side to fuse, is avoided
Accident occurs.However, existing auxiliary earth construction of switch is complicated, functional reliability is not high.
Auxiliary earth transmission structure of switch complexity used in country's switchgear, poor reliability at present.
Summary of the invention
It is an object of the present invention to provide a kind of structure is simple, the higher auxiliary earth switch of functional reliability.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
A kind of auxiliary earth switch is proposed according to an aspect of the present invention；The static contact of the auxiliary earth switch is located at
The load-side of the fuse, the auxiliary earth switch includes kinematic link, rotation axis, Anchor plate kit；Kinematic link is for molten
The earthing switch connection of disconnected device, the earthing switch close a floodgate or when separating brakes, and it is mobile to be able to drive the kinematic link；Rotation axis with
The kinematic link transmission connection, to drive the rotation axis to rotate when the kinematic link is mobile；Anchor plate kit be used for
The static contact contact of the auxiliary earth switch, with the auxiliary earth switch that closes a floodgate；The Anchor plate kit is installed on described turn
On moving axis, to follow the rotation axis to turn to the position contacted with the static contact when the earthing switch closes a floodgate.
Optionally, the auxiliary earth switch further includes the first connecting lever and mounting bracket；The one of the kinematic link
End is for the operating mechanism of the earthing switch or the rotation axis connection of earthing switch, the other end of the kinematic link and described the
One connecting lever one end is rotatably connected, and the other end of first connecting lever is fixedly connected with the rotation axis；Described turn
Moving axis is mounted in the mounting bracket.
Optionally, retention bead is additionally provided in the mounting bracket, the retention bead is for limiting first connection
The slewing area of connecting lever.
Optionally, the Anchor plate kit includes the first pressing plate being oppositely arranged, the second pressing plate, and is connected to described first
Elastic component between pressing plate and second pressing plate；First pressing plate is fixedly connected with the rotation axis, second pressing plate
For contacting the static contact, with the earthing switch that closes a floodgate.
Optionally, the Anchor plate kit further includes flexible connection arm, and the flexible connection arm is connected to first pressing plate
It is located at the end of the same side, with the second pressing plate to connect first pressing plate and second pressing plate.
Optionally, the flexible connection arm is soft copper bar.
Optionally, the Anchor plate kit further includes check bolt and stop nut, and the check bolt sequentially passes through described
First pressing plate and second pressing plate, the stop nut are fixed on the end of the stop nut；The elastic component is compression
Spring, the compressed spring are sheathed on the bar portion of the check bolt.
Optionally, the static contact is screw, and the screw is connected to the load-side of the fuse by conductive casings.
Optionally, the auxiliary earth switch further includes shielding case, and the shielding case covers on the outside of the static contact.
It is proposed a kind of switchgear according to another aspect of the present invention, which is characterized in that including fuse, earthing switch, with
And the auxiliary earth switch；The earthing switch is installed on the bus bar side of the fuse, the auxiliary earth switch peace
Load-side loaded on the fuse.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of switchgear of the present invention；
Fig. 2 is the partial structure diagram that auxiliary earth switchs in Fig. 1.
The reference numerals are as follows:
1, auxiliary earth switchs；11, kinematic link；12, rotation axis；13, Anchor plate kit；131, the first pressing plate；132,
Two pressing plates；133, elastic component；134, it is flexibly connected arm；135, check bolt；136, stop nut；14, the first connecting lever；
15, the second connecting lever；16, mounting bracket；161, retention bead；17, static contact；
2, earthing switch；21, working shaft；
3, fuse；4, conductive casings.
Specific embodiment
Although the present invention can easily show as various forms of embodiments, it is shown in the accompanying drawings and in this theory
What be will be explained in bright book is only some of specific embodiments, while being understandable that this specification is construed as
Disclosure principle it is exemplary illustrated, and be not intended to limit the invention to it is illustrated herein as.
A feature pointed in this specification shall illustrate wherein the one of an embodiment of the disclosure as a result,
A feature, rather than imply that each embodiment of the invention must have illustrated feature.Further it is to be noted that be this
Specification describes many features.Although certain features can be combined to show possible system design, these
Feature can also be used for other combinations that explanation is not known.As a result, unless otherwise indicated, illustrated combination is not intended to limit
System.
In the embodiments shown in the drawings, the instruction (such as upper, lower, left, right, front and rear) in direction is for explaining this hair
The structure of bright various elements and movement are not absolute but opposite.When these elements are in position shown in the drawings,
These explanations are suitable.If the explanation of the position of these elements changes, the instruction in these directions is also correspondingly
Change.
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to example set forth herein；On the contrary, providing these example embodiments makes the disclosure
Description will be more full and complete, and the design of example embodiment is comprehensively communicated to those skilled in the art.Attached drawing
The only schematic illustrations of the disclosure are not necessarily drawn to scale.Identical appended drawing reference indicates same or like in figure
Part, thus repetition thereof will be omitted.
The present embodiment proposes a kind of switchgear, specifically can be ring network cabinet.Referring to Fig. 1, switchgear include fuse 3,
Earthing switch 2 and auxiliary earth switch 1；Earthing switch 2 is installed on the bus bar side of fuse 3, and auxiliary earth switch 1 is installed
In the load-side of fuse 3.It can be generally equipped with on-load switch in the bus bar side of fuse 3, the static contact of earthing switch 2 is connected to
Between load switch and fuse 3, positioned at the bus bar side of fuse 3.
Fig. 1 and Fig. 2 are please referred to, the static contact 17 of the auxiliary earth switch 1 of the present embodiment is located at the load-side of fuse 3,
Auxiliary earth switch 1 includes kinematic link 11, rotation axis 12, Anchor plate kit 13.The earthing switch of kinematic link 11 and fuse 3
2 connections, earthing switch 2 close a floodgate or when separating brakes, and it is mobile to be able to drive kinematic link 11；Rotation axis 12 and the transmission of kinematic link 11 connect
It connects, to drive rotation axis 12 to rotate when kinematic link 11 is mobile；Anchor plate kit 13 is for the stationary contact with auxiliary earth switch 1
First 17 contact, with combined floodgate auxiliary earth switch 1；Anchor plate kit 13 is installed in rotation axis 12, with earthing switch 2 close a floodgate when with
The position contacted with static contact 17 is turned to rotation axis 12, so that auxiliary earth switch 1 be made to close a floodgate.
There is earthing switch 2 working shaft 21 to close that is, by controlling the working shaft 21 rotation to control earthing switch 2
Switch between gate position and open position.In the present embodiment, the specific structure and the course of work of earthing switch 2 are not limited.
In general, rotated by operating mechanism with the working shaft 21 for controlling earthing switch 2, thus switch the working condition of earthing switch 2,
The operating mechanism can be mechanical operating mechanism or electronic operating mechanism, be not specifically limited herein.
Kinematic link 11 is connected between earthing switch 2 and rotation axis 12, and the combined floodgate of earthing switch 2 or separating brake are acted
It is transferred to rotation axis 12, carries out combined floodgate or sub-switching operation to trigger auxiliary earth switch 1 and earthing switch 2 is followed to synchronize.Transmission
The connection of connecting rod 11 and earthing switch 2 at least has two kinds of embodiments.
In one embodiment, the working shaft 21 of one end of kinematic link 11 and earthing switch 2 is sequentially connected, and works as earthing switch
When 2 working shaft 21 rotates, the movement of kinematic link 11 will drive.In another embodiment, kinematic link 11 and earthing switch 2
Operating mechanism connection.The operating mechanism can be mechanical operating mechanism, therefore when mechanical operating mechanism manipulation earthing switch 2
When working shaft 21 rotates, kinematic link 11 can be driven to move together, so that the rotation axis 12 of auxiliary earth switch 1 be driven to transport
It is dynamic.
In the present embodiment, auxiliary earth switch 1 further includes the first connecting lever 14 and mounting bracket 16；Kinematic link 11
One end is connected for the operating mechanism of earthing switch 2 or the rotation axis 12 of earthing switch 2, and the other end of kinematic link 11 and first connects
It connects 14 one end of connecting lever to be rotatably connected, the other end of the first connecting lever 14 is fixedly connected with rotation axis 12；Rotation axis 12 is installed
In mounting bracket 16.
Illustrate on the working shaft 21 that one end of kinematic link 11 is connected to earthing switch 2 at this.Specifically, transmission
It is connected between connecting rod 11 and the working shaft 21 of earthing switch 2 by the second connecting lever 15, one end of the second 15 sets of connecting lever
It is sheathed on the working shaft 21, and is fixedly connected with the working shaft 21, the other end and kinematic link 11 of the second connecting lever 15
It is rotatably connected by pin shaft.
The bottom of mounting bracket 16 can be fixed at the bottom of switchgear.There are two mounting brackets 16 and sets relatively
Set, through-hole offered in mounting bracket 16, rotation axis 12 between two mounting brackets 16, and the both ends of rotation axis 12 respectively from
Through-hole in two mounting brackets 16 is pierced by.The end of rotation axis 12 is connect with kinematic link 11 by the first connecting lever 14, the
One end of one connecting lever 14 is rotatably connected with the end of kinematic link 11 by a pin shaft, the other end of first connecting rod connecting lever
It is fixedly connected with the end of rotation axis 12.
In the present embodiment, kinematic link 11, the first connecting lever 14, the second connecting lever 15 form four-bar linkage structure.Four
Link mechanism is simple, and movement is accurate, reliable, can effectively ensure that auxiliary earth switch 1 and earthing switch 2 while closing a floodgate, makes
It obtains 3 both ends of fuse to be grounded simultaneously, guarantees personnel safety, avoid that electric shock occurs in operating process or is wounded by residual charge to cause
Electrical hazard.
When earthing switch 2 closes a floodgate and auxiliary earth switch 1 is driven to close a floodgate, in order to avoid auxiliary earth switch 1 is because of ground connection
The excess of stroke of switch 2 and break auxiliary earth switch 1, in the present embodiment, be arranged mounting bracket 16 on be additionally provided with retention bead 161,
Retention bead 161 is used to limit the slewing area of the first connecting lever 14.The retention bead 161 can be fixedly disposed at installation
Screw on bracket 16 will receive limit when the first connecting lever 14 turns to the position contacted with the screw, and effective
The rotation axis 12 of auxiliary earth is protected not can rotate the excess of stroke.
Auxiliary earth switch 1 proposed by the present invention is installed on the load-side of the fuse 3, the auxiliary earth switch 1
Including kinematic link 11, rotation axis 12, Anchor plate kit 13.Kinematic link 11 is connected for the earthing switch 2 of fuse 3, when described
When the combined floodgate of earthing switch 2 or separating brake, it is mobile to be able to drive the kinematic link 11；Kinematic link 11 can synchronous drive in rotation
Rotation axis 12 rotates, rotation axis 12 and then the drive rotation of Anchor plate kit 13, to make Anchor plate kit 13 and auxiliary earth switch 1
Static contact 17 is in contact.It is understood that static contact 17 is attached to the load-side of fuse 3, therefore work as pressing plate group
When part 13 and static contact 17 contact, so that auxiliary earth switch 1 is in "on" position, so that the load of fuse 3 flanks
Ground.Auxiliary earth switch 1 of the invention passes through the transmission connection earthing switch 1 of kinematic link 11 and rotation axis 12, therefore structure
Simply, and it can guarantee that earthing switch 2 and auxiliary earth switch 1 realize synchroswitching and separating brake；And auxiliary earth of the present invention
Switch 1 is disconnecting link formula rotational structure, therefore functional reliability with higher.
Referring to Fig. 2, the auxiliary earth switch 1 of the present embodiment is disconnecting link rotational structure, driven by rotation axis 12 auxiliary
It helps the Anchor plate kit 13 of earthing switch 1 to contact with static contact 17, is closed a floodgate with realizing.In the present embodiment, installed in rotation axis 12
There are three groups of Anchor plate kits 13, to respectively correspond three-phase line；Three groups of Anchor plate kits 13 are successively arranged along the length direction of rotation axis 12
Cloth.It is corresponding, static contact 17 also there are three.Position setting and the three groups of Anchor plate kits 13 of static contact 17 correspond, with
When rotation axis 12 turns to closing position, enables to three groups of Anchor plate kits 13 while contacting corresponding static contact 17.Three groups
The structure of Anchor plate kit 13 is identical, is illustrated by taking the structure of one group of Anchor plate kit 13 as an example herein.
In the present embodiment, Anchor plate kit 13 includes the first pressing plate 131, the second pressing plate 132 being oppositely arranged, and is connected to
Elastic component 133 between first pressing plate 131 and the second pressing plate 132；First pressing plate 131 is fixedly connected with rotation axis 12, the second pressure
Plate 132 is for contacting static contact 17, with combined floodgate auxiliary earth switch 1.
Wherein, the second pressing plate 132 is equivalent to the moving contact of auxiliary earth switch 1.The static contact 17 of auxiliary earth switch 1 can
To be fixed on a conductive casings 4, which is connected to the load-side of fuse 3 by conducting wire, and static contact 17 is solid
Be scheduled in switchgear, therefore static contact 17 remains stationary, and the second pressing plate 132 can be turned under the rotation of rotation axis 12 with
The position that static contact 17 contacts, so that earthing switch closes a floodgate.
First pressing plate 131 can be fixed by screws in rotation axis 12, therefore the phase of the first pressing plate 131 and rotation axis 12
It is fixed to position；First pressing plate 131 and the second pressing plate 132 are generally disposed in parallel, by the setting of elastic component 133,
The second pressing plate 132 can be allow to adjust the relative distance between the first pressing plate 131 by compression elastic piece 133.Therefore
When auxiliary earth switch 1 closes a floodgate, the second pressing plate 132 will receive the reaction force of static contact 17 after touching static contact 17, this
When, if rotation axis 12 persistently rotates, when so that the first pressing plate 131 being continued close to static contact 17, the second pressing plate 132 can be in elastic component
Under 133 buffering, compression elastic piece 133, to avoid further compressing static contact 17.The setting of elastic component 133 limits second
Impact force between pressing plate 132 and static contact 17 realizes " soft contact " between the second pressing plate 132 and static contact 17, effectively
It avoids when 132 closing speed of the second pressing plate is too fast or the excess of stroke rotates, the sharp impacts of the second pressing plate 132 and static contact 17,
It causes static contact 17 to be damaged with the second pressing plate 132, ensure that the safety of making process.
Also, since the reseting elasticity power of elastic component 133 acts on, so that after the second pressing plate 132 is contacted with static contact 17,
The elastic force effect that second pressing plate 132 will receive elastic component 133 ensure that combined floodgate to keep the steady contact with static contact 17
Reliability and stability.
Therefore the present embodiment technical solution not only ensure that the reliability of combined floodgate, more can be improved the safety of combined floodgate.
In the present embodiment, Anchor plate kit 13 further includes flexible connection arm 134, and flexible connection arm 134 is connected to the first pressing plate
131 and second pressing plate 132 be located at the end of the same side, to connect the first pressing plate 131 and the second pressing plate 132.It is flexibly connected arm 134
On the one hand play the role of connecting the first pressing plate 131 and the second pressing plate 132, on the other hand can play electric action.Flexibility is even
The both ends for connecing arm 134 are flexibly connected arm in rigidity to play the role of fixing 132 position of the first pressing plate 131 and the second pressing plate
134 middle section is in flexibility, to cooperate the second pressing plate 132 towards or away from the process of the first pressing plate 131.
Specifically, flexible connection arm 134 is soft copper bar.One end of soft copper bar is fixedly connected with the end of the second pressing plate 132,
The other end of soft copper bar is fixedly connected with the end of the first pressing plate 131, rotation axis 12 by screw.
Anchor plate kit 13 further includes check bolt 135 and stop nut 136, and check bolt 135 sequentially passes through the first pressing plate
131 and second pressing plate 132, stop nut 136 be fixed on the end of stop nut 136.Therefore adjustable stop nut 136
Position, to adjust the maximum distance between the first pressing plate 131 and the second pressing plate 132.Second pressing plate 132 is along check bolt 135
Bar portion, close to or far from the first pressing plate 131.Check bolt 135 and stop nut 136 can be set two sets or two sets or more,
On the one hand the structural strength that Anchor plate kit 13 can be enhanced, on the other hand can also make the moving stability of the second pressing plate 132 more
It is good.
In the present embodiment, elastic component 133 is compressed spring, and compressed spring is sheathed on the bar portion of check bolt 135.When locking
When bolt 135 and stop nut 136 have two sets or two sets or more, wherein one or more check bolts are can be set in compressed spring
135 bar portion.
Illustrate herein, after the second pressing plate 132 is contacted with static contact 17, the movement routine of charge.In the present embodiment, installation
Bracket 16, rotation axis 12, flexible connection arm 134, the second pressing plate 132 are conductive material, such as metal.Mounting bracket 16 connects
Ground.Therefore after the second pressing plate 132 is contacted with static contact 17, charge passes through static contact 17, the second pressing plate 132, flexible connection arm
134, rotation axis 12 is moved to mounting bracket 16, to complete to be grounded.The present embodiment avoids passing through bolt, little spring as ground connection
Conductor ground connection, ensure that the grounded continuous of auxiliary earth switch 1.
In the above-described embodiments, the load-side that static contact 17 can be connected to fuse 3 by conductive casings 4 is mentioned.This
In embodiment, static contact 17 can be screw, in order to install.
Auxiliary earth switch 1 further includes shielding case, and shielding case covers at 17 outside of static contact.Shielding case can effectively improve
Electric field near static contact 17, so that the electric field on 17 surface of static contact is balanced；It avoids closing because 17 surface of static contact has wedge angle
When lock, point discharge phenomenon occurs, causes security risk.And the setting of shielding case can also improve the pressure-resistant water of static contact 17
It is flat, improve the reliability that auxiliary earth switch 1 is grounded.
Shielding case is made of metal material, can also be wrapped in stationary contact 17 surfaces, to improve near static contact 17
Electric field.
Although describing the present invention with reference to several exemplary embodiments, it is to be understood that, term used be explanation and
Term exemplary, and not restrictive.Due to the present invention can be embodied in a variety of forms without departing from invention spirit or
Essence, it should therefore be appreciated that above embodiment is not limited to any of the foregoing details, and should be defined by the appended claims
The whole change and modification widely explained, therefore fallen into claim or its equivalent scope in spirit and scope all should be with
Attached claim is covered.
Claims (10)
1. a kind of auxiliary earth switch, which is characterized in that the static contact of the auxiliary earth switch is located at the negative of the fuse
Side is carried, the auxiliary earth switch includes:
Kinematic link is connected for the earthing switch of fuse, and the earthing switch closes a floodgate or when separating brake, is able to drive the biography
Dynamic connecting rod is mobile；
Rotation axis is sequentially connected with the kinematic link, to drive the rotation axis to rotate when the kinematic link is mobile；
Anchor plate kit, for being contacted with the static contact, with the auxiliary earth switch that closes a floodgate；The Anchor plate kit is installed on institute
It states in rotation axis, to follow the rotation axis to turn to the position contacted with the static contact when the earthing switch closes a floodgate.
2. auxiliary earth switch according to claim 1, which is characterized in that the auxiliary earth switch further includes the first company
Connect connecting lever and mounting bracket；
One end of the kinematic link is described for the operating mechanism of the earthing switch or the work axis connection of the earthing switch
The other end of kinematic link is rotatably connected with first connecting lever one end, the other end of first connecting lever and institute
Rotation axis is stated to be fixedly connected；
The rotation axis is mounted in the mounting bracket.
3. auxiliary earth switch according to claim 2, which is characterized in that be additionally provided with limit convex in the mounting bracket
It rises, the retention bead is used to limit the slewing area of first connecting lever.
4. being switched according to claim 1 to auxiliary earth described in 3 any one, which is characterized in that the Anchor plate kit includes
The first pressing plate, the second pressing plate being oppositely arranged, and the elastic component being connected between first pressing plate and second pressing plate；
First pressing plate is fixedly connected with the rotation axis, and second pressing plate is for contacting the static contact, to close a floodgate
State auxiliary earth switch.
5. auxiliary earth switch according to claim 4, which is characterized in that the Anchor plate kit further includes flexible connection
Arm, the flexible connection arm is connected to first pressing plate and the second pressing plate is located at the end of the same side, to connect described first
Pressing plate and second pressing plate.
6. auxiliary earth switch according to claim 5, which is characterized in that the flexible connection arm is soft copper bar.
7. auxiliary earth according to claim 4 switch, which is characterized in that the Anchor plate kit further include check bolt and
Stop nut, the check bolt sequentially pass through first pressing plate and second pressing plate, and the stop nut is fixed on institute
State the end of stop nut；
The elastic component is compressed spring, and the compressed spring is sheathed on the bar portion of the check bolt.
8. auxiliary earth switch according to claim 1, which is characterized in that the static contact is screw, and the screw is logical
Cross the load-side that conductive casings are connected to the fuse；
Wherein, the conductive casings are fixed on the cabinet body of the switchgear.
9. auxiliary earth switch according to claim 1, which is characterized in that the auxiliary earth switch further includes shielding
Cover, the shielding case cover on the outside of the static contact.
10. a kind of switchgear, which is characterized in that including fuse, earthing switch and such as claim 1 to 9 any one institute
The auxiliary earth switch stated；The earthing switch is installed on the bus bar side of the fuse, and the auxiliary earth switch is installed on
The load-side of the fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910794344.7A CN110444434A (en) | 2019-08-27 | 2019-08-27 | Auxiliary earth switch and switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910794344.7A CN110444434A (en) | 2019-08-27 | 2019-08-27 | Auxiliary earth switch and switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110444434A true CN110444434A (en) | 2019-11-12 |
Family
ID=68437762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910794344.7A Pending CN110444434A (en) | 2019-08-27 | 2019-08-27 | Auxiliary earth switch and switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110444434A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113643926A (en) * | 2021-09-06 | 2021-11-12 | 杭州玖熠信息科技有限公司 | Auxiliary grounding switch of environment-friendly gas insulation ring main unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106960741A (en) * | 2017-04-05 | 2017-07-18 | 平高集团有限公司 | Fuse ground connection linkage and the switch cubicle using the device |
| CN107680867A (en) * | 2017-11-21 | 2018-02-09 | 北京合纵科技股份有限公司 | A kind of auxiliary earth switch |
| CN211150398U (en) * | 2019-08-27 | 2020-07-31 | 厦门华电开关有限公司 | Auxiliary grounding switch and switch cabinet |
-
2019
- 2019-08-27 CN CN201910794344.7A patent/CN110444434A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106960741A (en) * | 2017-04-05 | 2017-07-18 | 平高集团有限公司 | Fuse ground connection linkage and the switch cubicle using the device |
| CN107680867A (en) * | 2017-11-21 | 2018-02-09 | 北京合纵科技股份有限公司 | A kind of auxiliary earth switch |
| CN211150398U (en) * | 2019-08-27 | 2020-07-31 | 厦门华电开关有限公司 | Auxiliary grounding switch and switch cabinet |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113643926A (en) * | 2021-09-06 | 2021-11-12 | 杭州玖熠信息科技有限公司 | Auxiliary grounding switch of environment-friendly gas insulation ring main unit |
| CN113643926B (en) * | 2021-09-06 | 2024-03-01 | 杭州玖熠信息科技有限公司 | Auxiliary grounding switch of environment-friendly gas-insulated ring main unit |
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