CN203983209U - For the contact arm of switching device and the circuit breaker that comprises this contact arm - Google Patents

For the contact arm of switching device and the circuit breaker that comprises this contact arm Download PDF

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Publication number
CN203983209U
CN203983209U CN201190001077.0U CN201190001077U CN203983209U CN 203983209 U CN203983209 U CN 203983209U CN 201190001077 U CN201190001077 U CN 201190001077U CN 203983209 U CN203983209 U CN 203983209U
Authority
CN
China
Prior art keywords
contact arm
leading body
adaptor
pole
contact
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 - Lifetime
Application number
CN201190001077.0U
Other languages
Chinese (zh)
Inventor
涂占炜
章国龙
邓火珠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Technology AG
Original Assignee
ABB T&D Technology AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ABB T&D Technology AG filed Critical ABB T&D Technology AG
Application granted granted Critical
Publication of CN203983209U publication Critical patent/CN203983209U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66Vacuum switches
    • H01H33/6606Terminal arrangements

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

The circuit breaker that the utility model provides a kind of contact arm for switching device and comprises this contact arm.Contact arm comprises leading body (20), and leading body (20) is solid and is made up of aluminum or aluminum alloy.Leading body (20) one end connects adaptor (21) by front portion and is connected with tulip contact (22), and the other end is connected with pole (29).Leading body (20) is connected adaptor (21) by double thread bolt (24) with front portion and pole (29) connects.Therefore, leading body (20) has the sufficient contact surface contacting with pole (29).Anterior connection adaptor (21) is made of copper and is silver-plated.On the surface of leading body (20), be provided with multiple heat radiation grooves (201) near the anterior position that connects adaptor (21) one end.Circuit breaker of the present utility model, comprises the contact arm of pole (29) and switching device described in the utility model, and described contact arm is fastened to described pole (29).

Description

For the contact arm of switching device and the circuit breaker that comprises this contact arm
Technical field
The utility model relates to power product field, more particularly, relates to the contact arm for switching device.
background technology
Conventionally, vacuum circuit-breaker is the device for the protection of electric power system, and wherein, vacuum interrupter is made up of arc quenching material, in order to carry out electric power transfer, electric power conversion, electric power termination etc., and in office why barrier while generation electric power system is carried out automatically and is blocked fast.Vacuum circuit-breaker is used for operating rapid interrupt circuit by arc extinguishing, and operate in vacuum tank and opened by rapid dispersion by described arc extinguishing by the arc products of opening and closed normal load disengagement failure electric current produce, thus protective circuit and miscellaneous equipment.
This vacuum circuit-breaker has main circuit part, bogie mechanical device (truck mechanism) or mobile balladeur train (moving carriage), support (cradle) and auxiliary element.Bogie mechanical device is attached to main circuit part and has a mechanical part by entirety, and this mechanical part optionally moves to support by main circuit part.Between the tulip contact (tulip contactor) of main circuit part and the support end of support permission main circuit part and support, carry out combination or separate.Be attached to the operating period of support in main circuit part, electric current is introduced into the vacuum interrupter being arranged in main circuit part by upper end, and the electric current being introduced into is discharged by lower end.In this operating period, once there is any accident, vacuum interrupter cuts off electric current immediately.
Tulip contact is connected with contact arm, and contact arm is secured to pole.Fig. 1 illustrates the contact arm generally using now.Fig. 1 is the profile of contact arm.Contact arm be hollow and be made of copper.Contact arm meets the requirement of conduction and heat radiation.But the contact arm that copper becomes is very heavy and expensive.It is illusive that heavy contact arm makes fastening between itself and pole, under extreme case, and fastening may the fractureing between contact arm and pole.
Utility model content
In order to overcome shortcoming mentioned above, the utility model provides a kind of contact arm for switching device and circuit breaker thereof.
According to an aspect of the present utility model, provide a kind of contact arm for switching device.Contact arm comprises and is suitable for the leading body that is connected with pole.Leading body is solid and is made up of aluminum or aluminum alloy.
According to preferred embodiment of the utility model, contact arm further comprises the anterior adaptor that connects in tulip contact one end of leading body, and this front portion connects adaptor and is configured to be connected with tulip contact.
According to preferred embodiment of the utility model, leading body comprises female component in its pole one end, and this female component is suitable for holding the EXTERNAL PROJECTION for being connected with pole.Female component can be to be suitable for the columniform hole or the internal whorl that are connected with pole by bolt.
According to preferred embodiment of the utility model, leading body is cylindrical or conical.The diameter of conical leading body reduces towards tulip contact one end.
According to preferred embodiment of the utility model, contact arm further comprises the conductor protrusion that is configured to be connected with front portion adaptor connection.Conductor protrusion can be bolt, preferably, can be double thread bolt.
According to preferred embodiment of the utility model, the anterior adaptor that connects is made of copper.
According to another preferred embodiment of the utility model, overall structure is made up and is formed together with leading body to the anterior adaptor that connects of aluminum or aluminum alloy.
According to preferred embodiment of the utility model, the described anterior outer surface that connects adaptor is silver-plated.
According to preferred embodiment of the utility model, contact arm further comprises tulip contact.
According to preferred embodiment of the utility model, leading body all scribbles insulating material except female component.
According to preferred embodiment of the utility model, on the surface of leading body, be provided with multiple heat radiation grooves near the anterior position that connects adaptor one end.Heat radiation groove can improve heat dispersion.
According on the other hand of the present utility model, provide a kind of circuit breaker.Circuit breaker comprises pole and according to arbitrary contact arm above.Contact arm is secured to pole.
According to preferred embodiment of the utility model, in circuit breaker, contact arm can also be secured to pole by glue.
Contact arm of the present utility model is more cheap and lighter.Therefore, this contact arm (even after using for a long time) after being fixed on pole is more firm.Contact arm of the present utility model greatly reduces the cost of circuit breaker.
Brief description of the drawings
In the following description, in connection with preferred exemplary embodiment, theme of the present utility model is illustrated in greater detail, accompanying drawing shows these preferred exemplary embodiments, wherein:
Fig. 1 is the profile of the present contact arm generally using;
Fig. 2 A, Fig. 2 B and Fig. 2 C illustrate the structure of contact arm of the present utility model; Wherein, Fig. 2 A is the exploded view of contact arm, and Fig. 2 B is the profile of contact arm, and Fig. 2 C is the 3-D view of contact arm;
Fig. 3 illustrates according to the structure of the contact arm of the present utility model of another preferred embodiment;
Fig. 4 is the 3-D view of contact arm and tulip contact;
Fig. 5 is the 3-D view that is fastened on the contact arm on pole.
Embodiment
With reference to accompanying drawing mentioned above, provide the utility model preferred embodiment.
Fig. 2 A, Fig. 2 B and Fig. 2 C illustrate according to the structure of the contact arm of the present utility model of a preferred embodiment; Wherein, Fig. 2 A is the exploded view of contact arm, and Fig. 2 B is the profile of contact arm, and Fig. 2 C is the 3-D view of contact arm.Comprise and be suitable for the leading body 20 that is connected with pole 29 for the contact arm of switching device.Leading body 20 is solid and is made up of aluminum or aluminum alloy.Compared with existing contact arm, the material of leading body and structure have outstanding substantive distinguishing features and significant progressive.The leading body of being made up of aluminum or aluminum alloy greatly reduces the cost of contact arm.And the leading body of being made up of aluminum or aluminum alloy is lighter, can carries out fastening and make circuit breaker there is longer useful life with pole better.As shown in Figure 2 B, compared with the contact arm generally using now, the contact area between leading body 20 and pole 29 increases considerably.
Contact arm further comprises the anterior adaptor 21 that connects in tulip contact one end of leading body 20, the anterior adaptor 21 that connects is configured to be connected with tulip contact 22.The other end of leading body 20 is secured to pole 29.According to the utility model preferred embodiment, the anterior adaptor 21 that connects is made of copper, and it is connected with leading body 20 by double thread bolt 24.Leading body 20 is secured to pole by double thread bolt 23.The anterior adaptor 21 that connects has the internal whorl 25 that is adapted to double thread bolt 24.Similarly, pole 29 has the internal whorl that is adapted to double thread bolt 23.
Because leading body 20 is cylindrical or conical, therefore, it is difficult to rotation.A hole 202 is set on leading body 20, is used for helping leading body 20 to be rotated in the time that leading body 20 is secured to pole 29.Replace the parallel recess in 202, two, hole (being for example positioned at the anterior parallel recess 210 connecting on adaptor 21) also can be rotated with helping leading body 20.
The screw thread of two parts is all fine thread, can make to connect more firm.Bolt 23 can also be full thread, and its advantage is the contact surface that reduces aperture increase and pole 29.
According to another preferred embodiment of the utility model, the anterior adaptor 21 that connects is connected with leading body 20 by cylindrical protrusion.Leading body 20 is secured to pole by cylindrical protrusion.Anterior connection adaptor 21 and leading body 20 include the female component that is adapted to cylindrical protrusion.Similar, leading body 20 is secured to pole 29 by cylindrical protrusion.
According to the utility model preferred embodiment, as shown in Fig. 2 A-Fig. 2 C, leading body 20 is that the diameter of taper shape and leading body reduces towards tulip contact one end.In another preferred embodiment, leading body 20 can also be cylindrical.
The anterior adaptor 21 that connects can also be made up of aluminum or aluminum alloy, and forms overall structure together with leading body 20.But for large electric current application, preferably front portion is connected to adaptor 21 and separate and use bi-material with leading body 20, to keep identical ability to bear and to obtain larger cost savings.
According to the utility model preferred embodiment, anterior connection adaptor 21 is silver-plated.Therefore, the anterior adaptor 21 that connects has better heat dispersion and conductivity.
Fig. 3 illustrates according to the structure of the contact arm of the present utility model of another preferred embodiment.Contact arm 20 is cylindrical, and the anterior adaptor 21 that connects is made up of aluminum or aluminum alloy and forms overall structure together with leading body 20.On the surface of leading body 20, be provided with multiple heat radiation grooves 201 near the anterior position that connects adaptor one end.Heat radiation groove 201 can improve heat dispersion.
Fig. 4 illustrates that contact arm is connected with tulip contact 22.Contact arm connects adaptor 21 by front portion and is connected to tulip contact 22.Leading body 20 all scribbles insulating material except female component 25.Insulating material 26 is used for preventing the high-voltage arc between leading body 20 and grounded parts.
On the other hand, the utility model provides a kind of circuit breaker.As shown in Figure 5, circuit breaker comprises pole 29, tulip contact 22 and according to above-described arbitrary contact arm.Contact arm is at one end secured to pole 29, contacts with tulip contact 22 at the other end.Bolt is fastened on contact arm and is become flexible preventing by glue.Be dismountable in order to ensure contact arm 20 and pole 29, only use glue in one end of double thread bolt 23.Because other parts of circuit breaker are not inventive points of the present utility model, be therefore no longer described in greater detail.
Contact arm of the present utility model is tested.In temperature rise experiment and of short duration resistance to current test experiment, all performance is good for it.
Although the utility model is described based on some preferred embodiments, those skilled in the art are to be understood that these embodiment do not limit scope of the present utility model.In the situation that not deviating from the utility model spirit and theory, any change that these embodiment are carried out and amendment all should have scope that the personnel of general knowledge and those skilled in the art understand, therefore any change of, these embodiment being carried out and amendment all fall in the scope of the present utility model being defined by the claims.

Claims (15)

1. for the contact arm of switching device, comprise and be suitable for the leading body (20) that is connected with pole (29), it is characterized in that, described leading body (20) is solid and is made up of aluminum or aluminum alloy;
Described contact arm further comprises the anterior adaptor (21) that connects in tulip contact one end of leading body (20), the described anterior adaptor (21) that connects is configured to be connected with tulip contact (22).
2. contact arm according to claim 1, it is characterized in that, described leading body (20) comprises female component (25) in bar one end of described leading body (20), and described female component (25) is suitable for holding the EXTERNAL PROJECTION (23) for being connected with pole (29).
3. contact arm according to claim 2, is characterized in that, described female component is to be suitable for the internal whorl (25) that is connected with described pole (29) by bolt (23).
4. according to the contact arm described in claim 1-3 any one, it is characterized in that, described leading body (20) is cylindrical.
5. according to the contact arm described in claim 2 or 3, it is characterized in that, described leading body (20) is conical, and the diameter of described leading body reduces towards tulip contact one end.
6. contact arm according to claim 5, is characterized in that, described contact arm further comprises the conductor protrusion (24) that is configured to be connected with described front portion adaptor (21) connection.
7. contact arm according to claim 6, is characterized in that, described conductor protrusion is bolt.
8. contact arm according to claim 6, is characterized in that, described conductor protrusion is double thread bolt (24).
9. contact arm according to claim 1, is characterized in that, the described anterior adaptor (21) that connects is made of copper.
10. contact arm according to claim 1, is characterized in that, the described anterior adaptor (21) that connects is made up of aluminum or aluminum alloy and forms overall structure together with described leading body (20).
11. according to the contact arm described in claim 1,9 or 10 any one, it is characterized in that, the described anterior outer surface that connects adaptor (21) is silver-plated.
12. contact arms according to claim 11, it is characterized in that, described contact arm further comprises at least one heat radiation groove (201) near the anterior position that connects adaptor (21) one end on the surface of described leading body (20).
13. contact arms according to claim 5, is characterized in that, described leading body (20) all scribbles insulating barrier (26) except described female component (25).
14. 1 kinds of circuit breakers, is characterized in that, described circuit breaker comprises that described contact arm is secured to described pole (29) according to the contact arm described in claim 1-13 any one.
15. circuit breakers according to claim 14, is characterized in that, described contact arm is also secured to described pole (29) by glue.
CN201190001077.0U 2011-04-18 2011-04-18 For the contact arm of switching device and the circuit breaker that comprises this contact arm Expired - Lifetime CN203983209U (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/072918 WO2012142739A1 (en) 2011-04-18 2011-04-18 Contact arm for switch device and circuit breaker thereof

Publications (1)

Publication Number Publication Date
CN203983209U true CN203983209U (en) 2014-12-03

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CN201190001077.0U Expired - Lifetime CN203983209U (en) 2011-04-18 2011-04-18 For the contact arm of switching device and the circuit breaker that comprises this contact arm

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WO (1) WO2012142739A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105762028A (en) * 2014-12-18 2016-07-13 通用电气公司 Contact arm of circuit breaker and method for manufacturing contact arm
CN106783295A (en) * 2016-12-16 2017-05-31 天津平高智能电气有限公司 Contactor, fuse combined electrical apparatus and its contact arm

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105679593B (en) * 2016-03-31 2017-12-29 许昌永新电气股份有限公司 A kind of high-voltage vacuum circuit breaker polar post
CN106816342B (en) * 2017-02-27 2019-01-22 厦门理工学院 A kind of VD4 contact arm sleeve for high-voltage vacuum circuit breaker
US11056296B2 (en) 2019-11-20 2021-07-06 Eaton Intelligent Power Limited Circuit breaker using multiple connectors
EP4024634A3 (en) * 2020-12-29 2022-11-02 Schneider Electric USA, Inc. Enclosure and optimizations

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3491674B2 (en) * 1999-02-05 2004-01-26 株式会社戸上電機製作所 Circuit breaker
CN201230155Y (en) * 2008-07-14 2009-04-29 河南森源电气股份有限公司 Hand cart type grounding switch apparatus
CN101330174A (en) * 2008-07-15 2008-12-24 梁楚欣 Cuprum aluminum socket connector for conductivity as well as manufacturing method and use thereof
CN201435311Y (en) * 2009-06-03 2010-03-31 福建省三星机电设备有限公司 Electric conduction contact arm of high voltage breaker

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105762028A (en) * 2014-12-18 2016-07-13 通用电气公司 Contact arm of circuit breaker and method for manufacturing contact arm
CN105762028B (en) * 2014-12-18 2019-08-02 通用电气公司 A kind of contact arm of breaker and the method for manufacturing the contact arm
CN106783295A (en) * 2016-12-16 2017-05-31 天津平高智能电气有限公司 Contactor, fuse combined electrical apparatus and its contact arm
CN106783295B (en) * 2016-12-16 2019-02-01 天津平高智能电气有限公司 Contact-fuse combined electric appliance and its contact arm

Also Published As

Publication number Publication date
WO2012142739A1 (en) 2012-10-26

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20180528

Address after: Baden, Switzerland

Patentee after: ABB TECHNOLOGY LTD.

Address before: Zurich

Patentee before: ABB T & D Technology Ltd.

TR01 Transfer of patent right
CX01 Expiry of patent term

Granted publication date: 20141203

CX01 Expiry of patent term