CN110473735A - Disconnecting switch and its moving contact - Google Patents
Disconnecting switch and its moving contact Download PDFInfo
- Publication number
- CN110473735A CN110473735A CN201910522988.0A CN201910522988A CN110473735A CN 110473735 A CN110473735 A CN 110473735A CN 201910522988 A CN201910522988 A CN 201910522988A CN 110473735 A CN110473735 A CN 110473735A
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- China
- Prior art keywords
- current
- carrying part
- moving contact
- contact
- groove
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
-
- 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
- H01H31/02—Details
- H01H31/026—Movable parts and contacts mounted thereon
Abstract
The present invention relates to electric switch fields, in particular to disconnecting switch and its moving contact.Moving contact includes the first current-carrying part and the second current-carrying part, first, second current-carrying part is slidably matched and conductive contact, buffer structure is equipped between first current-carrying part and the second current-carrying part, second current-carrying part pushes the first current-carrying part to move by the buffer structure when closing a floodgate, the Stop structure on the direction far from the first current-carrying part with the cooperation of the first current-carrying part block is additionally provided on second current-carrying part, the second current-carrying part drives the first current-carrying part to move by the Stop structure in separating brake.Since the first current-carrying part of moving contact just starts to be compressed with buffer structure after static contact conductive contact, the closing speed of disconnecting switch will not be slowed down, pass through Impact energy buffer structure absorption moving contact and be adapted to contact, reduce moving contact and the impact force that is adapted to contact, solves the problems, such as that the service life caused by buffer structure buffering effect is bad when current moving contact use is short.
Description
Divisional application of the application for following applications, the applying date of original application: on 07 24th, 2017, the application of original application
Number: 2017106083800, the denomination of invention of original application: disconnecting switch and its moving contact.
Technical field
The present invention relates to electric switch fields, in particular to disconnecting switch and its moving contact.
Background technique
Direct-current isolating switch is the key that one of dc circuit breaker corollary equipment, accelerates direct-current isolating switch and direct current interruption
Device is used cooperatively, and helps to improve the flexibility and reliability of the intervention of distributed new electric power, DC line switching, at present
The design of high-speed motion structure of contact terminal in, in order to reduce the impact force of moving contact and static contact in making process, usually in dynamic touching
Setting buffer structure buffers moving contact between head and pedestal or between insulated pull rod and moving contact, and buffer structure can be with
It is the structures such as spring, cushion chamber, although the set-up mode of this buffer structure can reduce the impact force of moving contact and static contact,
But since buffer structure and moving contact are provided separately, the impact force reduced between moving contact and static contact is realized, in dynamic touching
Buffer structure, which has begun, before head is contacted with static contact acts on moving contact, and this buffer structure is the equal of the brake of moving contact
Bassinet structure, this closing speed for resulting in moving contact reduces, in order to not influence closing speed, it is common practice to reduce slow
Structure is rushed to the cushion effect of moving contact, therefore, the effect that this buffer structure reduces the impact force between dynamic/static contact is limited
, cause the problem that the dynamic/static contact service life is short.
Summary of the invention
The object of the present invention is to provide a kind of moving contacts, to solve buffer structure buffering effect when current moving contact uses
The short problem of service life caused by bad；In addition, the object of the invention is also to provide a kind of keeping apart using above-mentioned moving contact
It closes.
To achieve the above object, the first technical solution of moving contact of the invention are as follows: moving contact include for be adapted to
First current-carrying part of contact conductive contact and for drive the first current-carrying part move the second current-carrying part, the first conductive part
Divide and the second current-carrying part is slidably matched and conductive contact, buffering is equipped between the first current-carrying part and the second current-carrying part and is tied
Structure, the second current-carrying part push the first current-carrying part to move by the buffer structure when closing a floodgate, second current-carrying part
On be additionally provided with far from the first current-carrying part direction on the first current-carrying part block cooperation Stop structure, described second leads
Electric part drives the first current-carrying part to move by the Stop structure in separating brake, and the buffer structure includes by described first
First current-carrying part described in the gas buffer room that current-carrying part and the second current-carrying part surround be equipped with the first groove, described second
Current-carrying part is equipped with the second groove, and first groove and the second groove are mutually plugged together to surround the gas buffer room, the
The cell wall of two grooves is inserted into the first groove to be slidably matched with the first groove cell wall guiding.
Second of technical solution of moving contact of the invention are as follows: in the base of the first technical solution of moving contact of the invention
On plinth, the buffer structure includes the elastic buffer being arranged between the first current-carrying part and the second current-carrying part opposite face
Part, the resilient snubber top is between the first, second current-carrying part.
The third technical solution of moving contact of the invention are as follows: in the base of second of technical solution of moving contact of the invention
On plinth, the resilient snubber is disc spring.
To achieve the above object, the first technical solution of disconnecting switch of the invention are as follows: disconnecting switch include pedestal and
Be oriented to slidable fit moving contact on the base, further include adaptation contact be adapted to moving contact, moving contact include for fit
The first current-carrying part with contact conductive contact and the second current-carrying part for driving the first current-carrying part to move, first is conductive
Part is slidably matched with the second current-carrying part and conductive contact, and buffering knot is equipped between the first current-carrying part and the second current-carrying part
Structure, the second current-carrying part push the first current-carrying part to move by the buffer structure when closing a floodgate, second current-carrying part
On be additionally provided with far from the first current-carrying part direction on the first current-carrying part block cooperation Stop structure, described second leads
Electric part drives the first current-carrying part to move by the Stop structure in separating brake, and the buffer structure includes by described first
The gas buffer room that current-carrying part and the second current-carrying part surround, gas buffer room can either play buffer function, can also drop
The weight of low moving contact, improves the speed of moving contact, and first current-carrying part is equipped with the first groove, second conductive part
Divide and be equipped with the second groove, first groove and the second groove are mutually plugged together to surround the gas buffer room, the second groove
Cell wall be inserted into the first groove to be oriented to the first groove cell wall and be slidably matched.
Second of technical solution of disconnecting switch of the invention are as follows: in the first technical solution of disconnecting switch of the invention
On the basis of, the buffer structure includes that the elasticity being arranged between the first current-carrying part and the second current-carrying part opposite face is delayed
Stamping, the resilient snubber top is between the first, second current-carrying part.By resilient snubber as buffer structure, knot
Structure is simple, at low cost, convenient for assembly.In addition, resilient snubber can apply instead the second current-carrying part during separating brake
To thrust, accelerate and the quick separating that is adapted to contact.
The third technical solution of disconnecting switch of the invention are as follows: in second of technical solution of disconnecting switch of the invention
On the basis of, the resilient snubber is disc spring.The coefficient of elasticity of disc spring is larger, can realize in shorter distance biggish
Energy storage, as far as possible reduction moving contact can reduce the body of moving contact in addition, disc spring is small in size to the impact force of adaptation contact
Product.
4th kind of technical solution of disconnecting switch of the invention are as follows: disconnecting switch of the invention the first to the third
In on the basis of any one technical solution, the moving contact is slidably matched by the first current-carrying part with foot guide.
The invention has the benefit that being equipped between the first current-carrying part and the second current-carrying part of moving contact of the invention
Buffer structure, when carrying out closing operation, the second current-carrying part pushes the movement of the first current-carrying part to make the first current-carrying part and fit
With contact conductive contact realize close a floodgate, the first current-carrying part be adapted to contact after, the second current-carrying part compression buffer structure,
Moving contact and the Impact energy that be adapted to contact are absorbed by buffer structure, reduction moving contact and the impact force for being adapted to contact, raising
The service life of moving contact.In addition, due to this structure moving contact the first current-carrying part be adapted to contact conductive contact after
Buffer structure just starts to be compressed, therefore will not slow down moving contact and the closing speed for being adapted to contact, solves current dynamic touching
Service life short problem caused by buffer structure buffering effect is bad when head uses.
Detailed description of the invention
Fig. 1 is the status diagram before the moving contact of the specific embodiment 1 of disconnecting switch of the invention is contacted with static contact；
Fig. 2 is the status diagram before the moving contact of the specific embodiment 2 of disconnecting switch of the invention is contacted with static contact.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The specific embodiment 1 of disconnecting switch of the invention, as shown in Figure 1, disconnecting switch includes static contact 1, pedestal 2 and leads
To the moving contact 3 of slidable fit on the base 2, in the present embodiment, moving contact 3 and static contact 1 pass through end face conductive contact, stationary contact
Head constitutes the adaptation contact being adapted to moving contact.The direction of relative movement for defining moving contact 3 and pedestal 2 is front-rear direction.Stationary contact
First 1 includes fixed contact pedestal 11 and static contact contact 12, and moving contact 3 includes conductive for first with 1 conductive contact of static contact
Part 31 and the second current-carrying part 32 for driving the first current-carrying part 31 to move, it is conductive that the first current-carrying part 31 is in second
The front side of part 32.First current-carrying part 31 include ontology 311, be fixed on ontology 311 be used for and 1 conductive contact of static contact
Contact 312 and be threadedly coupled fixing sleeve 313 on the body.
First current-carrying part 31 and the second current-carrying part 32 are oriented to the simultaneously conductive contact that is slidably matched along the longitudinal direction, and first leads
Buffer structure is equipped between electric part 31 and the second current-carrying part 32, the second current-carrying part 32 is pushed away by buffer structure when closing a floodgate
Dynamic first current-carrying part 31 movement.In the present embodiment, buffer structure includes that top is mounted in the first current-carrying part 31 and the second conductive part
Divide the disc spring 33 between 32, further includes the gas buffer room 34 surrounded by the first current-carrying part 31 and the second current-carrying part 32.This
Disc spring 33 in embodiment constitutes the resilient snubber being arranged between the first current-carrying part 31 and the second current-carrying part 32, other
In embodiment, disc spring can also be other resilient snubbers such as helical spring.Since the coefficient of elasticity of disc spring 33 is larger, Neng Gou
Biggish energy storage, the as far as possible impact force of reduction moving contact, static contact are realized in shorter distance, use disc spring 33 as elasticity
Bolster also can reduce the relative motion distance of the first, second current-carrying part 32, facilitate the move distance of control moving contact 3,
It can reduce the requirement to the accuracy of operating mechanism.
The ontology of first current-carrying part 31 is equipped with the first groove 314, and the second current-carrying part 32 is equipped with the second groove
321, the cell wall of the cell wall of the first groove 314 and the second groove 321, which mutually plugs together, surrounds gas buffer room 34, in the present embodiment,
The cell wall of second groove 321 is inserted into the first groove 314 and is slidably matched with 314 cell wall of the first groove guiding, the first groove
314 cell wall is equipped with the groove guide ring 317 to the cell wall guiding of the second groove 321.The collocation of disc spring 33 gas buffer room 34
Using the specification that can reduce disc spring 33, reduce the volume of moving contact 3.Using gas surge chamber also mitigates moving contact simultaneously
Weight, operating mechanism can make moving contact reach faster speed, improve divide-shut brake speed.
In the present embodiment, disc spring 33 is sleeved on the outer peripheral surface of 321 cell wall of the second groove.Second current-carrying part 32 is equipped with
Annular convex platform 322, annular convex platform 322 constitute the Stop structure on the second current-carrying part 32, and the second current-carrying part 32 passes through annular
Boss 322 drives the first current-carrying part 31 to move in separating brake.The leading flank i.e. elasticity that disc spring 33 presses against annular convex platform 322 is slow
Stamping presses against annular convex platform 322 towards on the side of the first current-carrying part 31, and the other end of disc spring 33 presses against the first groove
On the front end face of 314 cell walls.In the present embodiment, disc spring 33 is in fixing sleeve 313, and the nose threads of fixing sleeve 313 are connected to
On ontology 311, the rear end of fixing sleeve 313 is equipped with inward flange 315, annular convex platform 322 and inward flange 315 block in the longitudinal direction
Cooperation, the inner peripheral surface of inward flange 315 are oriented in the longitudinal direction with the second current-carrying part 32 and are slidably matched.Inward flange 315 it is interior
Circumferential surface is equipped with flange guide ring 316, and flange guide ring 316 improves fixing sleeve 313 and the guiding of the second current-carrying part 32 is slided
Precision.The annular space of installation disc spring 33 is formed by the cell wall of fixing sleeve 313 and the second groove 321, it is compact-sized.
In the present embodiment, upper guiding is slidably matched the first current-carrying part 31 along the longitudinal direction with pedestal 2, and pedestal 2 is equipped with
Two foot guide rings 21 of front and back arrangement are located wherein the foot guide ring 21 in front side is slidably matched with the guiding of ontology 311
It is slidably matched in the foot guide ring 21 of rear side and the outer peripheral surface guiding of fixing sleeve 313.First current-carrying part 31 is in foot guide
Ring 21 moves under acting on relative to pedestal 2, relative to the second conduction under the action of flange guide ring 316, groove guide ring 317
Part 32 moves.
In the present embodiment, the second current-carrying part 32 is equipped with the pin shaft hole 323 for connecting with drive rod, the second conductive part
32 are divided to be moved forward and backward by drive rod drive.
Disc spring 33 is sleeved on the second current-carrying part first, then leads first in assembly by moving contact 3 of the invention
First groove 314 of electric part 31 and the second groove 321 of the second current-carrying part 32 finally make fixing sleeve 313 to being plugged together
It passes through and is threaded on the ontology 311 of the first current-carrying part 31 from one end of the second current-carrying part 32.
For disconnecting switch of the invention when closing a floodgate, drive rod drives the second current-carrying part 32 to travel forward, the second conductive part
32 are divided to push the first current-carrying part 31 to travel forward by buffer structure, before the contact 312 of the first current-carrying part 31
End face is contacted with static contact 1, and the second current-carrying part 32 starts to compress disc spring 33 and gas surge chamber 34, due to the fortune of moving contact 3
Dynamic to belong to high-speed motion, the gas moment in gas buffer room 34 is compressed, the gas structure in disc spring 33 and gas buffer room 34
At double buffering, increase moving contact 3 and the closing retention force of static contact 1 slowly, reduces the impact force of moving contact, static contact.Every
When leaving pass separating brake, the second counter motion backward of current-carrying part 32, the pressure release of disc spring 33 pushes the second current-carrying part 32 to add
The quick separating of moving contact, static contact is realized in fast counter motion.
The moving contact of disconnecting switch of the invention is high-speed motion contact, absorbs moving contact, static contact by buffer structure
Impact energy, reduce moving contact, static contact impact force, improve moving contact, static contact service life.Due to this structure
The first current-carrying part 31 of moving contact 3 just start to be compressed with buffer structure after 1 conductive contact of static contact, therefore will not slow down
The closing speed of moving contact, static contact, longevity caused by buffer structure buffering effect is bad when solving the current use of moving contact 3
Order short problem.
The specific embodiment 2 of disconnecting switch of the invention, the tool of disconnecting switch and above-mentioned disconnecting switch in the present embodiment
Difference in body embodiment 1 is only that: as shown in Fig. 2, the second groove can not be set, the second current-carrying part 32 is equipped with insertion the
Insertion portion 324 in one groove 314, insertion portion 324 and the first groove 314 surround gas buffer room 34.
The specific embodiment 3 of disconnecting switch of the invention, the tool of disconnecting switch and above-mentioned disconnecting switch in the present embodiment
Difference in body embodiment 1 is only that: buffer structure only includes gas buffer room.
The specific embodiment 4 of disconnecting switch of the invention, the tool of disconnecting switch and above-mentioned disconnecting switch in the present embodiment
Difference in body embodiment 1 is only that: buffer structure only includes disc spring.
The specific embodiment of moving contact of the invention, the structure of the moving contact in the present embodiment and the tool of above-mentioned disconnecting switch
The structure of moving contact described in body embodiment 1 or 2 or 3 or 4 is identical, repeats no more.
In the other embodiments of disconnecting switch and its moving contact of the invention, the ontology of above-mentioned moving contact and contact can be with
It is integral structure；Above-mentioned fixing sleeve can be set on the second current-carrying part, and the structure of corresponding first current-carrying part carries out
Adaptive change is so that the second current-carrying part is able to drive the movement of the first current-carrying part；Above-mentioned gas surge chamber can be provided only on
On first current-carrying part, piston is set on the side wall of gas buffer room, the second current-carrying part is buffered by piston compressed gas
Room；The adaptation contact of above-mentioned moving contact may not be static contact, but moving contact identical with above-mentioned moving contact structure or
It is the common moving contact without buffer structure.
Claims (7)
1. moving contact, it is characterised in that: including for the first current-carrying part for being adapted to contact conductive contact and for driving the
The second current-carrying part that one current-carrying part moves, the first current-carrying part and the second current-carrying part are slidably matched and conductive contact, the
Buffer structure is equipped between one current-carrying part and the second current-carrying part, the second current-carrying part is by the buffer structure when closing a floodgate
It pushes the first current-carrying part to move, is additionally provided on second current-carrying part on the direction far from the first current-carrying part and first
The Stop structure of current-carrying part block cooperation, second current-carrying part drive first to lead by the Stop structure in separating brake
Electric componental movement, the buffer structure include the gas buffer room surrounded by first current-carrying part and the second current-carrying part,
First current-carrying part be equipped with the first groove, second current-carrying part be equipped with the second groove, first groove with
Second groove is mutually plugged together to surround the gas buffer room, and the cell wall of the second groove is inserted into the first groove and the first groove
Cell wall guiding is slidably matched.
2. moving contact according to claim 1, it is characterised in that: the buffer structure includes being arranged in the first conductive part
Divide the resilient snubber between the second current-carrying part opposite face, the resilient snubber top is mounted in the first, second current-carrying part
Between.
3. moving contact according to claim 2, it is characterised in that: the resilient snubber is disc spring.
4. disconnecting switch, moving contact including pedestal and guiding slidable fit on the base further includes fitting of be adapted to moving contact
With contact, it is characterised in that: moving contact includes for the first current-carrying part for being adapted to contact conductive contact and for driving the
The second current-carrying part that one current-carrying part moves, the first current-carrying part and the second current-carrying part are slidably matched and conductive contact, the
Buffer structure is equipped between one current-carrying part and the second current-carrying part, the second current-carrying part is by the buffer structure when closing a floodgate
It pushes the first current-carrying part to move, is additionally provided on second current-carrying part on the direction far from the first current-carrying part and first
The Stop structure of current-carrying part block cooperation, second current-carrying part drive first to lead by the Stop structure in separating brake
Electric componental movement, the buffer structure include the gas buffer room surrounded by first current-carrying part and the second current-carrying part,
First current-carrying part be equipped with the first groove, second current-carrying part be equipped with the second groove, first groove with
Second groove is mutually plugged together to surround the gas buffer room, and the cell wall of the second groove is inserted into the first groove and the first groove
Cell wall guiding is slidably matched.
5. moving contact according to claim 4, it is characterised in that: the buffer structure includes being arranged in the first conductive part
Divide the resilient snubber between the second current-carrying part opposite face, the resilient snubber top is mounted in the first, second current-carrying part
Between.
6. disconnecting switch according to claim 5, it is characterised in that: the resilient snubber is disc spring.
7. according to the described in any item disconnecting switch of claim 4-6, it is characterised in that: the moving contact passes through the first conductive part
Divide and is slidably matched with foot guide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910522988.0A CN110473735B (en) | 2017-07-24 | 2017-07-24 | Isolating switch and moving contact thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910522988.0A CN110473735B (en) | 2017-07-24 | 2017-07-24 | Isolating switch and moving contact thereof |
| CN201710608380.0A CN107578944B (en) | 2017-07-24 | 2017-07-24 | Disconnecting switch and its moving contact |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710608380.0A Division CN107578944B (en) | 2017-07-24 | 2017-07-24 | Disconnecting switch and its moving contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110473735A true CN110473735A (en) | 2019-11-19 |
| CN110473735B CN110473735B (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910522988.0A Active CN110473735B (en) | 2017-07-24 | 2017-07-24 | Isolating switch and moving contact thereof |
| CN201910523046.4A Active CN110491714B (en) | 2017-07-24 | 2017-07-24 | Isolating switch and moving contact thereof |
| CN201710608380.0A Active CN107578944B (en) | 2017-07-24 | 2017-07-24 | Disconnecting switch and its moving contact |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910523046.4A Active CN110491714B (en) | 2017-07-24 | 2017-07-24 | Isolating switch and moving contact thereof |
| CN201710608380.0A Active CN107578944B (en) | 2017-07-24 | 2017-07-24 | Disconnecting switch and its moving contact |
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| Country | Link |
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| CN (3) | CN110473735B (en) |
Cited By (1)
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| CN111292541A (en) * | 2020-03-13 | 2020-06-16 | 王光柱 | Vehicle overspeed monitoring and warning equipment |
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| CN108493041B (en) * | 2018-02-08 | 2019-10-01 | 北京双杰电气股份有限公司 | A kind of unidirectional gas damping buffering insulated pull rod |
| CN111146169B (en) * | 2018-11-06 | 2022-03-18 | 株洲中车时代半导体有限公司 | Conductive disc spring assembly for crimping module |
| CN111146048A (en) * | 2020-01-13 | 2020-05-12 | 吴妍佩 | Self-recovery direct current fuse |
| CN112133606A (en) * | 2020-09-29 | 2020-12-25 | 哈尔滨工业大学 | Static contact for reducing closing rebound of direct-acting electromagnetic contactor |
| CN112435875A (en) * | 2020-12-08 | 2021-03-02 | 安徽宝泰特种材料有限公司 | Touch switch device capable of bearing super-large current |
| CN114724882A (en) * | 2022-03-16 | 2022-07-08 | 河北邯峰发电有限责任公司 | High-frequency power supply high-voltage isolating switch |
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| CN204375584U (en) * | 2014-12-17 | 2015-06-03 | Abb技术有限公司 | Moving arcing contact device |
| CN105185642A (en) * | 2015-09-16 | 2015-12-23 | 上海天灵开关厂有限公司 | Directly-operated three-station disconnecting switch and gas-insulated switchgear |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111292541A (en) * | 2020-03-13 | 2020-06-16 | 王光柱 | Vehicle overspeed monitoring and warning equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107578944B (en) | 2019-05-14 |
| CN110491714B (en) | 2021-08-03 |
| CN110473735B (en) | 2021-04-02 |
| CN110491714A (en) | 2019-11-22 |
| CN107578944A (en) | 2018-01-12 |
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