CN104900429B - A kind of structure of contact terminal for antivacuum medium and switch - Google Patents
A kind of structure of contact terminal for antivacuum medium and switch Download PDFInfo
- Publication number
- CN104900429B CN104900429B CN201510324919.0A CN201510324919A CN104900429B CN 104900429 B CN104900429 B CN 104900429B CN 201510324919 A CN201510324919 A CN 201510324919A CN 104900429 B CN104900429 B CN 104900429B
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- CN
- China
- Prior art keywords
- contact
- insulating cylinder
- antivacuum medium
- terminal
- antivacuum
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
-
- 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
- H01H1/502—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position the action of the contact pressure spring becoming active only after engagement of the contacts
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- Contacts (AREA)
Abstract
A kind of structure of contact terminal for antivacuum medium of the present invention, including the first contact and the second contact, and is flexible coupling and insulating cylinder；The contact jaw of the first contact and the second contact is arranged all in plane；Insulating cylinder arranges open-ended part and intermediate openings part；The contact jaw of the first contact is located in the end face of the open-ended part of insulating cylinder；First contact and the electrical contact of the second contact form flat board docking, and contact position is located in the end face of the open-ended part of insulating cylinder；The one end being flexible coupling is arranged in insulating cylinder, is fixedly connected the first contact, and the other end stretches out through insulating cylinder intermediate openings part.By the setting of contact surface in insulating cylinder it is ensured that in the first contact and the second contact to neutralizing accurate contact, simultaneously because the restriction of insulating cylinder ensure that stable contact area and contact environment；Even centering is not carried out by flat board docking structure, directly contact has certain deviation, can guarantee that enough contacts area, contact resistance is little, through-current capability is strong, temperature rise reduces.
Description
Technical field
The present invention relates to high-voltage electrical equipment technical field, specially a kind of structure of contact terminal for antivacuum medium and opening
Close.
Background technology
In high-voltage electrical equipment, the use of contact is very universal, and species is also very many, and chopper, disconnecting switch etc. are opened
Pass equipment is respectively provided with dynamic and static contact.
In general, in withdraw-type chopper, during handcart propulsion, the centering situation of dynamic and static contact during combined floodgate
Certain deviation inevitably occurs, the situation of contact centering cannot be observed and is difficult to be adjusted.So it is easy to
Mume flower contact is led to occur in contact eccentric, due to only several millimeters of centering regulated quantity of Mume flower contact, once exceeding this
Individual centering regulated quantity, will make the contact of Mume flower contact count out and be greatly reduced, and contact area reduces, and lead to logical between contact
Stream reduced capability, causes local temperature rise too high.
On the other hand, isolation moving contact mostly adopts Mume flower contact structure, and static contact is all placed in contact box, the side of combined floodgate
Formula is plug-in type.When switch is persistently energized temperature rising, Mume flower contact provides the elasticity of the jump ring of thrust can decline, thus
Reduce the contact pressure between Mume flower contact and static contact, lead to resistance herein to become big, temperature continues to raise.
Content of the invention
For problems of the prior art, the present invention provides a kind of contact area big, and centering accurate stable is adjusted
Section is conveniently used for structure of contact terminal and the switch of antivacuum medium.
The present invention is to be achieved through the following technical solutions：
A kind of structure of contact terminal for antivacuum medium, including the first contact and the second contact, and is flexible coupling and insulate
Cylinder；The contact jaw of the first contact and the second contact is arranged all in plane；Insulating cylinder arranges open-ended part and intermediate openings portion
Point；The contact jaw of the first contact is located in the end face of the open-ended part of insulating cylinder；Described first contact and the second contact electricity connect
Touch and form flat board docking, contact position is located in the end face of the open-ended part of insulating cylinder；The one end being flexible coupling is arranged on insulation
In cylinder, it is fixedly connected the first contact, the other end stretches out through insulating cylinder intermediate openings part.
Preferably, the surface of the first contact and the second contact is coated respectively with graphene layer.
Preferably, the contact end face of the first contact or the second contact is provided with densely covered salient point.
Preferably, the first contact is connected with the universal joint being fixed in insulating cylinder.
Further, being provided between the first contact and universal joint is the first contact and the second contact electrical contact offer compression
The elastomeric element of power.
Further, elastomeric element is fixed on universal joint by support base.
Preferably, the free end of the second contact is provided for is the first contact and the electrical contact of the second contact provides thrust
Elastomeric element.
Further, elastomeric element adopts spring.
Preferably, insulating cylinder is fixedly connected metal profile.
A kind of switch for antivacuum medium, using a kind of the touching for antivacuum medium described in any of the above one
Header structure.
Compared with prior art, the present invention has following beneficial technique effect：
The present invention passes through the contact surface setting in insulating cylinder, ensure that in the first contact and the second contact
To neutralizing accurate contact, simultaneously because the restriction of insulating cylinder ensure that stable contact area and contact environment；Docked by flat board
Even structure does not carry out centering, directly contact has certain deviation, also can guarantee that enough contacts area；During contact
Contact area is big, and contact resistance is little, and through-current capability is strong, and temperature rise reduces, good heat dissipation.
Further, by the graphene layer of coating on dynamic first contact, it is prevented from contact surface and is corroded, impact
The electric conductivity of contact.
Further, using the salient point gathering on the contact jaw of the first contact or the second contact, it can be avoided that contact connects
Tactile surface leads to contact area to diminish because coarse, thus provide preferably contacting effect.
Further, using the universal joint in the first contact fixing end setting it is achieved that centering can be adjusted during contact,
Increase regulated quantity, docking is accurately；
Further, using the elastomeric element of setting, using the teaching of the invention it is possible to provide thrust during contact electrical contact, it is simultaneously located at ten thousand
The demand of centering regulation can be better met to the elastomeric element between section and the first contact, adjust more smooth.
Brief description
Fig. 1 is the schematic diagram of structure described in present example.
Fig. 2 is the partial schematic diagram of the first contact and the second contact in Fig. 1.
Fig. 3 is the partial enlarged drawing at A in Fig. 2.
In figure：1 is the first contact；2 is the second contact；3 is to be flexible coupling；4 is spring；5 is support base；6 is insulating cylinder；7
For universal joint；11 is metal profile；12 is withdraw-type chopper；21 is graphene layer；22 is salient point；61 is intermediate openings portion
Point.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, and described is explanation of the invention rather than limit
Fixed.It should be understood that the present invention can have various changes in different embodiments, it neither departs from the scope of the present invention.
As shown in figure 1, a kind of structure of contact terminal for antivacuum medium of the present invention, including the first contact 1, the second contact 2,
Be flexible coupling 3, insulating cylinder 6；The contact jaw of the first contact 1 and the second contact 2 is arranged all in plane；Insulating cylinder 6 arranges open-ended
Part and intermediate openings part 61；The contact jaw of the first contact 1 is located in the end face of the open-ended part of insulating cylinder 6；First touches
1 and the second contact 2 electrical contact form flat board docking, contact position is located in the end face of the open-ended part of insulating cylinder 6；Soft company
Connect 3 one end to be arranged in insulating cylinder 6, be fixedly connected the first contact 1, the other end stretches out through insulating cylinder 6 intermediate openings part 61.
First contact 1 and the second contact 2 are fabricated to bar-shaped or other shapes using conductive metallic material it is preferred that adopting
Copper rod, constitutes the contact electric contact structure of flat board docking.First contact is placed in insulating cylinder, because in insulating cylinder, space is more narrow
Little, if its radiating can be affected using traditional Mume flower contact, contribute to radiating using the structure of contact terminal of flat board docking, and copper rod
Structure simpler than Mume flower contact, cost is lower.
Be flexible coupling 3 one end is fixed on the first contact, and the other end stretches out from the middle opening part 61 of insulating cylinder 6.Absolutely
The position of the middle opening part 61 of edge cylinder 6 is entered according to the cast of insulating cylinder and the specific mounting means of the structure of contact terminal of the present invention
Row selects.
As shown in Fig. 2 there is a layer graphene layer 21 on the surface of the first contact 1 and the second contact 2, in antivacuum Jie such as air
In matter, contact surface is susceptible to aoxidize or corrodes, and surface produces nonconducting material, reduces the through-current capability of contact.And stone
Black alkene has certain electric conductivity and thermal diffusivity, stable performance in the media such as air, can realize high attached in technique
The preparation of the Graphene coated electrode puted forth effort.Contact with graphite ene coatings, it is to avoid surface corrosion occurs, there is good leading
Electrically and heat conductivity.
As shown in figure 3, the contact end face in the first contact 1 or the optional one of the second contact 2 is provided with intensive salient point, with
Prevent contact surface from leading to contact area to diminish because coarse, more preferable contact effect is provided.
Continue as shown in figure 1, as preferred scheme, the first contact 1 is connected with the universal joint 7 being fixed in insulating cylinder 6.
During practical set and debugging, it is possible that there is eccentric, setting when the first contact and the docking of the second contact
After universal joint 7, regulated quantity can be increased in contact, increase contact area.Comparatively speaking, Mume flower contact is when closing a floodgate
If the slightly eccentric centering regulated quantity that will exceed several millimeters, it will lead to the number of contacts of contact to be greatly reduced, contact
Area reduces 50% about；And under equal conditions, the contact slightly bias of flat board docking also can guarantee that contact area is not less than
80%～90%.
Further, as preferred scheme, between the first contact 1 and universal joint 7, it is provided with spring 4.One end of spring 4
It is fixed on and is flexible coupling on 3, the other end is fixed on support base 5.Spring 4 is the first contact 1 and the second contact 2 electrical contact provides pressure
Clamp force is it is ensured that reliably through-flow.As the other embodiment scheme of the present invention, spring 4 can also be arranged on oneself of the second contact
The function of thrust, by holding, equally can be provided.Further, spring 4 can be from helical spring or using other elasticity
Part substitutes.
Insulating cylinder 6 is fixed in metal profile 11, or the bottom of insulating cylinder 6 is fixed on supports insulative.Can
It is arranged according to the actual design situation of switchgear.
A kind of switch for antivacuum medium, a kind of structure of contact terminal for antivacuum medium of the present invention.Example
As the structure of contact terminal in disconnecting switch, withdraw-type chopper can adopt structure of contact terminal of the present invention.
Ultimate principle and principal character and the advantages of the present invention of the present invention have been shown and described above.Art technology
Personnel will be appreciated that the present invention is not restricted to the described embodiments, and the simply explanation described in above-described embodiment and description is originally
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes
Change and improvement both falls within scope of the claimed invention.
Claims (8)
1. a kind of structure of contact terminal for antivacuum medium it is characterised in that：Including the first contact (1) and the second contact (2), with
And insulating cylinder (6) and be flexible coupling (3)；
The contact jaw of described first contact (1) and the second contact (2) is arranged all in plane；
Described insulating cylinder (6) arranges open-ended part and intermediate openings part (61)；The contact jaw position of described first contact (1)
In the end face of the open-ended part of insulating cylinder (6)；Described first contact (1) and the second contact (2) electrical contact form flat board pair
Connect, contact position is located in the end face of the open-ended part of insulating cylinder (6)；
Described one end being flexible coupling (3) is arranged in insulating cylinder (6), is fixedly connected the first contact (1), the other end is through insulating cylinder
(6) intermediate openings part (61) is stretched out；
It is provided with densely covered salient point (22) on the contact end face of described first contact (1) or the second contact (2)；
It is the first contact (1) that the free end of described second contact (2) is provided for and the second contact (2) electrical contact provides thrust
Elastomeric element.
2. as claimed in claim 1 a kind of structure of contact terminal for antivacuum medium it is characterised in that：Described first contact
(1) surface of and the second contact (2) is coated respectively with graphene layer (21).
3. as claimed in claim 1 a kind of structure of contact terminal for antivacuum medium it is characterised in that：The first described contact
(1) it is connected with the universal joint (7) being fixed in insulating cylinder (6).
4. as claimed in claim 3 a kind of structure of contact terminal for antivacuum medium it is characterised in that：Described first contact
(1) it is provided for the elastic for the first contact (1) and the second contact (2) electrical contact offer thrust and universal joint (7) between
Part.
5. as claimed in claim 4 a kind of structure of contact terminal for antivacuum medium it is characterised in that：Described elastomeric element leads to
Cross support base (5) to be fixed on universal joint (7).
6. a kind of structure of contact terminal for antivacuum medium as described in claim 1 or 4 or 5 it is characterised in that：Described elasticity
Part adopts spring (4).
7. as claimed in claim 1 a kind of structure of contact terminal for antivacuum medium it is characterised in that：Described insulating cylinder (6)
It is fixedly connected metal profile (11).
8. a kind of switch for antivacuum medium it is characterised in that：Using as described in any one in claim 1-7
Plant the structure of contact terminal for antivacuum medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510324919.0A CN104900429B (en) | 2015-06-12 | 2015-06-12 | A kind of structure of contact terminal for antivacuum medium and switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510324919.0A CN104900429B (en) | 2015-06-12 | 2015-06-12 | A kind of structure of contact terminal for antivacuum medium and switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104900429A CN104900429A (en) | 2015-09-09 |
| CN104900429B true CN104900429B (en) | 2017-03-08 |
Family
ID=54033036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510324919.0A Active CN104900429B (en) | 2015-06-12 | 2015-06-12 | A kind of structure of contact terminal for antivacuum medium and switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104900429B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810498B (en) * | 2016-04-08 | 2018-08-31 | 天津平高智能电气有限公司 | A kind of vacuum circuit breaker and its manufacturing method |
| CN112952628B (en) * | 2021-03-24 | 2024-02-02 | 江苏凯隆电器有限公司 | Manufacturing method and manufacturing device of switching equipment based on network cooperation |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1020048B (en) * | 1974-08-20 | 1977-12-20 | Magrini Spa Galileo | PROTECTION DEVICE FOR ELECTRICAL PANELS FOR INSERTION AND DEACTIVATION OF IN SWITCHES EQUIPPED WITH MEASURING TRANSFOR |
| IT1280813B1 (en) * | 1995-03-21 | 1998-02-11 | Fiat Auto Spa | DEVICE FOR INTERRUPTING STRONG CURRENTS IN A POWER LINE. |
| JPH10336817A (en) * | 1997-06-04 | 1998-12-18 | Toshiba Corp | Sealed distribution board |
| JP2000322987A (en) * | 1999-05-12 | 2000-11-24 | Mitsubishi Electric Corp | Switch |
| CN201522977U (en) * | 2009-09-29 | 2010-07-07 | 上海西门子开关有限公司 | Contact arm for circuit breaker |
| CN204680554U (en) * | 2015-06-12 | 2015-09-30 | 中国西电电气股份有限公司 | A kind of structure of contact terminal for antivacuum medium |
-
2015
- 2015-06-12 CN CN201510324919.0A patent/CN104900429B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104900429A (en) | 2015-09-09 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20210811 Address after: 710077 No. 18 West Second Ring Road, Shaanxi, Xi'an Patentee after: XI'AN HIGH VOLTAGE APPARATUS RESEARCH INSTITUTE Co.,Ltd. Address before: 710075 Shaanxi city of Xi'an Province Tang Hing Road No. 7 Patentee before: CHINA XD ELECTRIC Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 710077 No. 18 West Second Ring Road, Shaanxi, Xi'an Patentee after: Xi'an High Voltage Electrical Apparatus Research Institute Co.,Ltd. Address before: 710077 No. 18 West Second Ring Road, Shaanxi, Xi'an Patentee before: XI'AN HIGH VOLTAGE APPARATUS RESEARCH INSTITUTE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |