CN106816342B - A kind of VD4 contact arm sleeve for high-voltage vacuum circuit breaker - Google Patents
A kind of VD4 contact arm sleeve for high-voltage vacuum circuit breaker Download PDFInfo
- Publication number
- CN106816342B CN106816342B CN201710107887.8A CN201710107887A CN106816342B CN 106816342 B CN106816342 B CN 106816342B CN 201710107887 A CN201710107887 A CN 201710107887A CN 106816342 B CN106816342 B CN 106816342B
- Authority
- CN
- China
- Prior art keywords
- contact arm
- fixedly connected
- shrinkable
- bush
- circuit breaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
Landscapes
- Breakers (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention discloses a kind of VD4 contact arm sleeve for high-voltage vacuum circuit breaker, ontology is covered including contact arm, the contact arm set ontology is cylindrical, the inner ring of the contact arm set ontology is fixedly connected with cylindrical heat-shrinkable T bush, the inner ring of the heat-shrinkable T bush is connected with cylindrical contact arm body, the inside of heat-shrinkable T bush is also fixedly connected with limit plate in the form of annular discs, and the inner end of contact arm body is fixedly connected with copper connecting plate in the form of annular discs, and copper connecting plate and heat-shrinkable T bush are flexibly connected.The VD4 contact arm sleeve for high-voltage vacuum circuit breaker; it ensure that the stability of contact port; protection can be effectively sealed to contact arm body, connection is more stable, effectively avoids the loosening of internal element; stability is more preferable; the effective open circuit that ensure that the device, plays good insulation effect, effectively avoids the leakage of electric current; the normal use of equipment, good insulation preformance is effectively guaranteed.
Description
Technical field
The present invention relates to contact arms to cover technical field, specially a kind of VD4 contact arm sleeve for high-voltage vacuum circuit breaker.
Background technique
Breaker is to refer to close, carry and cut-off the electric current under normal loop condition, and hold before the deadline
The switching device of the electric current under abnormal loop condition is carried and cut-offs, breaker is divided into high-voltage circuitbreaker and low pressure by its use scope
Breaker, breaker can be used to distribute electric energy, infrequently start asynchronous motor, protect to implementations such as power circuit and motor
Shield, when serious overload or short circuit and the failures such as under-voltage occurs in they can automatic shutdown circuit, circuit breaker contact arm is electric current
Pass through the platform between circuit breaker polar and major loop in the process of running.
After prolonged use, internal element is easy to loosen existing circuit breaker contact arm set, will cause the leakage of electric current,
The normal use of equipment is seriously affected, stability is low, and insulation performance is poor.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of VD4 contact arm sleeve for high-voltage vacuum circuit breaker, insulation is solved
The problem of performance difference.
(2) technical solution
To achieve the above object, the invention provides the following technical scheme: a kind of VD4 contact arm sleeve for high-voltage vacuum circuit breaker, packet
Contact arm set ontology is included, the contact arm set ontology is cylindrical, and the inner ring of the contact arm set ontology is fixedly connected with cylindrical
Heat-shrinkable T bush, the inner ring of the heat-shrinkable T bush are connected with cylindrical contact arm body, and the inside of the heat-shrinkable T bush is also solid
Surely it is connected with limit plate in the form of annular discs, the inner end of the contact arm body is fixedly connected with copper connecting plate in the form of annular discs, and copper
Matter connecting plate and heat-shrinkable T bush are flexibly connected, and the copper connecting plate is fixedly connected with screw rod far from the one side of contact arm body, institute
The one end of screw rod far from copper connecting plate is stated through limit plate and is connect with nut thread.
One end of the contact arm set ontology is fixedly connected with connector annular in shape, the other end of the contact arm set ontology
It is fixedly connected with insulated protection ring annular in shape, the insulated protection ring opens up that there are two opposite far from the one side of contact arm set ontology
The card slot of title, the contact arm body are fixedly connected with cylindrical connector, the connection close to the inside of insulated protection ring one end
Body is opened up far from the lateral surface of contact arm body one end there are two the first symmetrical screw thread, and tulip touching is arranged on the connector
Refer to, offers the second screw thread compatible with the first screw thread, and tulip fingertip and connection on the inner wall of the tulip fingertip
Body is threadedly coupled, and the tulip fingertip is fixedly connected with fixture block compatible with card slot close to the one side of insulated protection ring.
Preferably, the diameter of the connector is greater than the diameter of contact arm set ontology, and the length value of the screw rod is less than contact arm
Cover the length value of ontology.
Preferably, sealing ring is provided between the nut and limit plate, the diameter of the nut is less than heat-shrinkable T bush
Diameter.
Preferably, the length value of second screw thread is greater than the length value of the first screw thread.
(3) beneficial effect
The present invention provides a kind of VD4 contact arm sleeve for high-voltage vacuum circuit breaker, have it is following the utility model has the advantages that
(1) the VD4 contact arm sleeve for high-voltage vacuum circuit breaker changes traditional plum blossom touching by being provided with tulip fingertip
Part is assigned, port be connected with contact arm body is more thick and solid, ensure that the stability for contacting port, by being provided with fixture block, card slot, the
One screw thread and the second screw thread, can be effectively sealed protection to contact arm body, connect it is more stable, by be provided with screw rod,
Sealing ring and nut can effectively fix contact arm body, effectively avoid the loosening of internal element, stability is more
It is good.
(2) the VD4 contact arm sleeve for high-voltage vacuum circuit breaker can be to contact arm body by being provided with insulated protection ring and limit plate
It is effectively protected and is sealed, by adjusting screw rod, be capable of forming effective high pressure vacuum environment, ensure that the device has
Effect open circuit, cooperates the effect of heat-shrinkable T bush, plays good insulation effect, effectively avoid the leakage of electric current, effective to protect
The normal use of equipment, good insulation preformance are demonstrate,proved.
Detailed description of the invention
Fig. 1 is tulip contact finger structure cross-sectional view of the present invention；
Fig. 2 is that contact arm of the present invention covers body construction cross-sectional view.
In figure: 1 tulip fingertip, 2 second screw threads, 3 connectors, 4 first screw threads, 5 card slots, 6 fixture blocks, 7 insulated protection rings, 8
Contact arm covers ontology, 9 connectors, 10 heat-shrinkable T bush, 11 copper connecting plates, 12 limit plates, 13 nuts, 14 contact arm bodies, 15 screw rods, 16
Sealing ring.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution referring to FIG. 1-2: a kind of VD4 contact arm sleeve for high-voltage vacuum circuit breaker, including touching
Arm covers ontology 8, and contact arm set ontology 8 is cylindrical, and it is silastic material layer, good insulation preformance, contact arm set ontology that contact arm, which covers ontology 8,
8 inner ring is fixedly connected with cylindrical heat-shrinkable T bush 10, ensure that the relative stability of heat-shrinkable T bush 10, can be according to temperature
Degree carries out a degree of contraction, effectively fitting and protection can be carried out to contact arm body 14, insulation effect is good, heat-shrinkable T bush 10
Inner ring be connected with cylindrical contact arm body 14, contact arm body 14 can be effectively protected, heat-shrinkable T bush 10
Inside is also fixedly connected with limit plate 12 in the form of annular discs, can effectively be limited electric current, insulation effect is more preferable, contact arm
The inner end of body 14 is fixedly connected with copper connecting plate 11 in the form of annular discs, ensure that the normal use of contact arm body 14, and copper company
Fishplate bar 11 and heat-shrinkable T bush 10 are flexibly connected, and be ensure that effective movement of copper connecting plate 11, can be closed to contact arm body 14
The fixation of reason, copper connecting plate 11 are fixedly connected with screw rod 15 far from the one side of contact arm body 14, and screw rod 15 is far from copper connection
One end of plate 11 is threadedly coupled through limit plate 12 and with nut 13, can effectively be fixed to contact arm body 14, nut 13
Sealing ring 16 is provided between limit plate 12, the diameter of nut 13 is less than the diameter of heat-shrinkable T bush 10, can be to contact arm body 14
Effectively fixed.
One end of contact arm set ontology 8 is fixedly connected with connector 9 annular in shape, ensure that effective connection of contact arm set
With use, contact arm set ontology 8 the other end be fixedly connected with insulated protection ring 7 annular in shape, play good insulation performance, even
The diameter of connector 9 is greater than the diameter of contact arm set ontology 8, and the length value of screw rod 15 is less than the length value of contact arm set ontology 8, can be right
Contact arm body 14 is effectively placed and is protected, and insulated protection ring 7 is opened up far from the one side of contact arm set ontology 8 there are two symmetrical
Card slot 5, contact arm body 14 is fixedly connected with cylindrical connector 3 close to the inside of 7 one end of insulated protection ring, ensure that contact arm
The normal use of body 14, connector 3 open up there are two the first symmetrical screw thread 4 far from the lateral surface of 14 one end of contact arm body, connect
It is arranged with tulip fingertip 1 on junctor 3, second screw thread compatible with the first screw thread 4 is offered on the inner wall of tulip fingertip 1
2, the length value of the second screw thread 2 is greater than the length value of the first screw thread 4, and tulip fingertip 1 and connector 3 are threadedly coupled, Radix Curcumae
Connector 3 can be effectively protected in fragrant fingertip 1, by being provided with tulip fingertip 1, change traditional plum blossom fingertip
Accessory, the port being connected with contact arm body 14 is more thick and solid, ensure that the stability of contact port, tulip fingertip 1 is close to insulation shield
The one side of circle 7 is fixedly connected with fixture block 6 compatible with card slot 5, ensure that the relative stability of tulip fingertip 1, can
Contact arm body 14 is effectively fixed, the loosening of internal element is effectively avoided, stability is more preferable, effectively avoids
The normal use of equipment, good insulation preformance is effectively guaranteed in the leakage of electric current.
Working principle: under the action of the first screw thread 4 and the second screw thread 2, tulip fingertip 1 and connector 3 are subjected to spiral shell
Line connection, fixture block 6 and card slot 5 are fastened, and the leakage of electric current is avoided, and insulated protection ring 7, contact arm cover ontology 8,12 and of limit plate
Heat-shrinkable T bush 10 protects contact arm body 14, plays the effect of insulation.
In conclusion the VD4 contact arm sleeve for high-voltage vacuum circuit breaker is changed traditional by being provided with tulip fingertip 1
Plum blossom fingertip accessory, the port being connected with contact arm body 14 is more thick and solid, ensure that the stability of contact port, by being provided with fixture block
6, card slot 5, the first screw thread 4 and the second screw thread 2 can be effectively sealed protection to contact arm body 14, and connection is more stable, leads to
It crosses and is provided with screw rod 15, sealing ring 16 and nut 13, contact arm body 14 can effectively be fixed, effectively avoid inside
The loosening of element, stability is more preferable, by being provided with insulated protection ring 7 and limit plate 12, can carry out to contact arm body 14 effectively
Protection and sealing be capable of forming effective high pressure vacuum environment by adjusting screw rod 15, ensure that the effective disconnected of the device
Road cooperates the effect of heat-shrinkable T bush 10, plays good insulation effect, effectively avoid the leakage of electric current, effective to guarantee
The normal use of equipment, good insulation preformance.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions.By sentence " element limited including one ..., it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element ", the electricity occurred in this article
Device element is electrically connected with extraneous main controller and 220V alternating current, and main controller can play the routine of control for computer etc.
Know equipment.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of VD4 contact arm sleeve for high-voltage vacuum circuit breaker, including contact arm set ontology (8), it is characterised in that: the contact arm covers ontology
(8) cylindrical, the inner ring of contact arm set ontology (8) is fixedly connected with cylindrical heat-shrinkable T bush (10), the pyrocondensation
The inner ring of casing (10) is connected with cylindrical contact arm body (14), and the inside of the heat-shrinkable T bush (10) is also fixedly connected
Have limit plate in the form of annular discs (12), the inner end of the contact arm body (14) is fixedly connected with copper connecting plate in the form of annular discs
(11), and copper connecting plate (11) and heat-shrinkable T bush (10) are flexibly connected, and the copper connecting plate (11) is far from contact arm body (14)
One side be fixedly connected with screw rod (15), the screw rod (15) far from copper connecting plate (11) one end run through limit plate (12)
And it is threadedly coupled with nut (13)；There is gap, the contact arm between the copper connecting plate (11) and the limit plate (12)
One end of set ontology (8) is fixedly connected with connector annular in shape (9), and the other end of contact arm set ontology (8) is fixed to be connected
Be connected to insulated protection ring annular in shape (7), the insulated protection ring (7) far from contact arm set ontology (8) one side open up there are two
Symmetrical card slot (5), the contact arm body (14) are fixedly connected with cylindrical company close to the inside of insulated protection ring (7) one end
Junctor (3), the connector (3) open up far from the lateral surface of contact arm body (14) one end there are two symmetrical the first screw thread (4),
It is arranged with tulip fingertip (1) on the connector (3), is offered and the first screw thread on the inner wall of the tulip fingertip (1)
(4) compatible second screw thread (2), and tulip fingertip (1) and connector (3) are threadedly coupled, the tulip fingertip (1) is leaned on
The one side of nearly insulated protection ring (7) is fixedly connected with and card slot (5) compatible fixture block (6).
2. a kind of VD4 contact arm sleeve for high-voltage vacuum circuit breaker according to claim 1, it is characterised in that: the connector (9)
Diameter be greater than the diameter of contact arm set ontology (8), the length value of the screw rod (15) is less than the length value of contact arm set ontology (8).
3. a kind of VD4 contact arm sleeve for high-voltage vacuum circuit breaker according to claim 1, it is characterised in that: the nut (13)
It is provided between limit plate (12) sealing ring (16), the diameter of the nut (13) is less than the diameter of heat-shrinkable T bush (10).
4. a kind of VD4 contact arm sleeve for high-voltage vacuum circuit breaker according to claim 1, it is characterised in that: second screw thread
(2) length value is greater than the length value of the first screw thread (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710107887.8A CN106816342B (en) | 2017-02-27 | 2017-02-27 | A kind of VD4 contact arm sleeve for high-voltage vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710107887.8A CN106816342B (en) | 2017-02-27 | 2017-02-27 | A kind of VD4 contact arm sleeve for high-voltage vacuum circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106816342A CN106816342A (en) | 2017-06-09 |
| CN106816342B true CN106816342B (en) | 2019-01-22 |
Family
ID=59112742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710107887.8A Expired - Fee Related CN106816342B (en) | 2017-02-27 | 2017-02-27 | A kind of VD4 contact arm sleeve for high-voltage vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106816342B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012142739A1 (en) * | 2011-04-18 | 2012-10-26 | Abb Technology Ltd. | Contact arm for switch device and circuit breaker thereof |
| CN203339546U (en) * | 2013-06-27 | 2013-12-11 | 四川电器集团股份有限公司 | Novel circular contact arm assembly for handcart |
| CN203386675U (en) * | 2013-06-17 | 2014-01-08 | 上海一开电气集团有限公司 | Circuit breaker contact arm of centrally installed switchgear |
| CN205622127U (en) * | 2015-12-27 | 2016-10-05 | 天津汇誉丰机电科技有限公司 | Fuse handcart convenient to operation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006019383A1 (en) * | 2006-04-24 | 2007-10-25 | Siemens Ag | Interrupter unit of an electrical switching device |
-
2017
- 2017-02-27 CN CN201710107887.8A patent/CN106816342B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012142739A1 (en) * | 2011-04-18 | 2012-10-26 | Abb Technology Ltd. | Contact arm for switch device and circuit breaker thereof |
| CN203386675U (en) * | 2013-06-17 | 2014-01-08 | 上海一开电气集团有限公司 | Circuit breaker contact arm of centrally installed switchgear |
| CN203339546U (en) * | 2013-06-27 | 2013-12-11 | 四川电器集团股份有限公司 | Novel circular contact arm assembly for handcart |
| CN205622127U (en) * | 2015-12-27 | 2016-10-05 | 天津汇誉丰机电科技有限公司 | Fuse handcart convenient to operation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106816342A (en) | 2017-06-09 |
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| PB01 | Publication | ||
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190122 |
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| CF01 | Termination of patent right due to non-payment of annual fee |