CN102709101A - Contact structure of isolating switch - Google Patents

Contact structure of isolating switch Download PDF

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Publication number
CN102709101A
CN102709101A CN2012101811442A CN201210181144A CN102709101A CN 102709101 A CN102709101 A CN 102709101A CN 2012101811442 A CN2012101811442 A CN 2012101811442A CN 201210181144 A CN201210181144 A CN 201210181144A CN 102709101 A CN102709101 A CN 102709101A
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CN
China
Prior art keywords
contact
spring
isolating switch
moving
blade
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.)
Pending
Application number
CN2012101811442A
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Chinese (zh)
Inventor
孙仕建
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.)
JIANING ELECTRIC CO Ltd
Original Assignee
JIANING ELECTRIC CO Ltd
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 JIANING ELECTRIC CO Ltd filed Critical JIANING ELECTRIC CO Ltd
Priority to CN2012101811442A priority Critical patent/CN102709101A/en
Publication of CN102709101A publication Critical patent/CN102709101A/en
Pending legal-status Critical Current

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Abstract

The invention provides a contact structure of an isolating switch, which comprises a contact seat, a moving contact and a contact spring. The moving contact comprises two contact blade sets which are oppositely arranged and are of the same structures; the contact spring comprises two same leaf springs; the leaf springs are arranged between the contact blade sets and the contact seat and are used for pressing the contact blade sets into the contact seat; both ends of the leaf springs are symmetrically provided with a plurality of branch fingers; and each pair of branch fingers correspond to one contact blade. According to the contact structure of the isolating switch, which is provided by the invention, the moving contact is designed into a contact blade overlaying mode, i.e. when the moving contact and a fixed contact are matched, each contact blade of the moving contact is respectively meshed with the fixed contact and the contact surface is decomposed into a plurality of contact surfaces, so that on one hand, the contact structure is beneficial for dissipating heat, and on the other hand, each contact blade is independently pressed by the branch fingers of the leaf springs, and thus, each contact blade can be ensured to be well contacted and uniformly stressed; and meanwhile, in the meshing process of the contacts, the spring force of the contact spring is gradually changed, so that the transmission stability of the contact structure is higher.

Description

The structure of contact terminal of isolating switch
Technical field
The invention belongs to the isolating switch field, be specifically related to a kind of structure of contact terminal of isolating switch.
Background technology
Isolating switch is to use maximum a kind of electrical equipment in the high-voltage switch electric appliance, and isolating switch mainly is made up of insulated part, current-carrying part, support base or several parts such as framework, transmission mechanism and operating mechanism.The structure of contact terminal of traditional isolating switch generally adopts monolithic moving contact mode or bar type contact mode, and the monolithic moving contact in the monolithic moving contact mode is two sides contact, the contact area that in rotary course, is difficult to guarantee its contact-making surface with contact effect.The contact pressing spring is that whole contact is shared in addition, and the pressure on the contact-making surface is inhomogeneous, is difficult to improve ampacity.
Summary of the invention
The present invention is directed to the deficiency of above-mentioned prior art, a kind of structure of contact terminal of isolating switch is provided, the structure of contact terminal of this isolating switch can guarantee that the contact contact is good and stressed even.
The present invention realizes through following technical scheme:
A kind of structure of contact terminal of isolating switch comprises contact base, moving contact and touch spring, and moving contact and touch spring all are installed in the contact base; It is characterized in that; Said moving contact comprise two be oppositely arranged, contact group that structure is identical, each contact group includes the contact of a plurality of range upon range of settings, is provided with a clamping device between two contact groups; Said clamping device clamps all contacts and connects, and is fixed in the contact base; Said touch spring comprises two identical flat springs, and said flat spring is arranged between contact group and the contact base, is used for the contact group is pressed in the contact base; The two ends of said flat spring are symmetrically arranged with a plurality of branches and refer to, the branch of per two symmetries refers to corresponding with a contact.
Further setting of the present invention is that the side direction centre position of said contact is provided with the installation portion of an outside protrusion, is provided with the gap between two contact groups; Said clamping device comprises two reference columns, and two reference columns pass from the gap between two contact groups, and clamps through the installation portion of bolt with all contacts.
Further setting of the present invention is, the both end sides of said contact is used for the protuberance that contacts with conducting terminal with fixed contact to being respectively arranged with.
Further setting of the present invention is, also be provided with on the said contact one be used for the mounting contact spring draw-in groove.
The structure of contact terminal of isolating switch of the present invention is designed to the contact superposing type with moving contact; Each contact of moving contact meshes with fixed contact respectively when being the dynamic/static contact cooperation; Contact-making surface is decomposed into some contact-making surfaces; Help heat radiation on the one hand, each contact all refers to compress separately through the branch of flat spring on the other hand, and it is good and stressed even to guarantee that each contact all contacts; The spring force of touch spring is to gradually change in the contact engagement process simultaneously, makes that the transmission stability of this structure of contact terminal is better.
Description of drawings
Fig. 1 is the vertical view of the structure of contact terminal of isolating switch according to the invention;
Fig. 2 is the front view of the structure of contact terminal of isolating switch according to the invention;
Fig. 3 is the left view of the structure of contact terminal of isolating switch according to the invention;
Fig. 4 is the A-A cutaway view of Fig. 1;
Fig. 5 is the B-B cutaway view of Fig. 2;
Fig. 6 is the C-C cutaway view of Fig. 3;
Fig. 7 is the structure chart of contact.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation.
Shown in Fig. 1-7, the invention provides a kind of structure of contact terminal of isolating switch, comprise contact base 1, moving contact 2 and touch spring, moving contact 2 all is installed in the contact base 1 with touch spring.Said moving contact 2 comprise two be oppositely arranged, contact group 4 that structure is identical; Each contact group 4 includes the contact 5 of a plurality of range upon range of settings; Be provided with a clamping device between two contact groups 4, said clamping device clamps all contacts 5 and connects, and is fixed in the contact base 1.Touch spring comprises two identical flat springs 3, and said flat spring 3 is arranged between contact group 4 and the contact base 1, is used for contact group 4 is pressed in the contact base 1; The two ends of said flat spring 3 are symmetrically arranged with a plurality of branches and refer to 6, and the branch of per two symmetries refers to that 6 is corresponding with a contact 5.Touch spring need not to adjust position and size after end is installed, simplified production technology greatly, has practiced thrift production cost.
For the ease of contact 5 is installed, the side direction centre position of said contact 5 is provided with between outside 51, two contact groups 4 of installation portion of protruding and is provided with the gap; Said clamping device comprises that 7, two reference columns 7 of two reference columns pass from the gap between two contact groups 4, and clamps through the installation portion 51 of two or more bolts 8 with all contacts 5.Certainly the present invention is not limited to the mode that the adopts reference column a plurality of contacts in the moving contact 2 that are fixedly clamped, and can also adopt the anchor clamps of other types.
In order to make moving contact more reliable with contacting of fixed contact, the both end sides of said contact 5 is to being respectively arranged with a protuberance 52, and said contact 5 adopts the section of protuberance 52 to contact with conducting terminal with fixed contact.For the ease of the mounting contact spring, also be provided with on the said contact 5 one be used for the mounting contact spring draw-in groove 53, the two ends of flat spring 3 are connected in the draw-in groove 53.
The above is preferred embodiment of the present invention, and all equivalent variations of doing according to claim of the present invention all should belong to protection scope of the present invention.

Claims (4)

1. the structure of contact terminal of an isolating switch comprises contact base, moving contact and touch spring, and moving contact and touch spring all are installed in the contact base; It is characterized in that; Said moving contact comprise two be oppositely arranged, contact group that structure is identical, each contact group includes the contact of a plurality of range upon range of settings, is provided with a clamping device between two contact groups; Said clamping device clamps all contacts and connects, and is fixed in the contact base; Said touch spring comprises two identical flat springs, and said flat spring is arranged between contact group and the contact base, is used for the contact group is pressed in the contact base; The two ends of said flat spring are symmetrically arranged with a plurality of branches and refer to, the branch of per two symmetries refers to corresponding with a contact.
2. the structure of contact terminal of isolating switch according to claim 1 is characterized in that, the side direction centre position of said contact is provided with the installation portion of an outside protrusion, is provided with the gap between two contact groups; Said clamping device comprises two reference columns, and two reference columns pass from the gap between two contact groups, and clamps through the installation portion of bolt with all contacts.
3. the structure of contact terminal of isolating switch according to claim 1 is characterized in that, the both end sides of said contact is used for the protuberance that contacts with conducting terminal with fixed contact to being respectively arranged with.
4. switch touching chip architecture according to claim 1 is characterized in that, also be provided with on the said contact one be used for the mounting contact spring draw-in groove.
CN2012101811442A 2012-05-31 2012-05-31 Contact structure of isolating switch Pending CN102709101A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012101811442A CN102709101A (en) 2012-05-31 2012-05-31 Contact structure of isolating switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012101811442A CN102709101A (en) 2012-05-31 2012-05-31 Contact structure of isolating switch

Publications (1)

Publication Number Publication Date
CN102709101A true CN102709101A (en) 2012-10-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012101811442A Pending CN102709101A (en) 2012-05-31 2012-05-31 Contact structure of isolating switch

Country Status (1)

Country Link
CN (1) CN102709101A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105590762A (en) * 2016-01-27 2016-05-18 山东泰开隔离开关有限公司 Heavy-current plug-in type conductive contact used for outdoor high-voltage disconnecting switch
CN105702517A (en) * 2016-03-31 2016-06-22 浙江奔电气有限公司 Moving contact
CN105869942A (en) * 2016-04-01 2016-08-17 广州白云电器设备股份有限公司 Three-position isolation switch for switch cabinet
CN108987133A (en) * 2018-08-24 2018-12-11 德力西电气有限公司 A kind of structure of contact terminal

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1665986A1 (en) * 1967-07-07 1971-04-15 Siemens Ag Contact arrangement with a knife contact piece and a receiving device
JPH0562557A (en) * 1991-09-03 1993-03-12 Mitsubishi Electric Corp Drawout type circuit breaker
US5853305A (en) * 1994-12-06 1998-12-29 Schneider Electric S.A. Connection clip to a busbar for a draw-in multipole circuit breaker or system
CN101383233A (en) * 2008-02-26 2009-03-11 上海华明电力设备制造有限公司 Moving contact for tap switch
CN202758797U (en) * 2012-05-31 2013-02-27 佳宁电气有限公司 Contact structure of isolation switch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1665986A1 (en) * 1967-07-07 1971-04-15 Siemens Ag Contact arrangement with a knife contact piece and a receiving device
JPH0562557A (en) * 1991-09-03 1993-03-12 Mitsubishi Electric Corp Drawout type circuit breaker
US5853305A (en) * 1994-12-06 1998-12-29 Schneider Electric S.A. Connection clip to a busbar for a draw-in multipole circuit breaker or system
CN101383233A (en) * 2008-02-26 2009-03-11 上海华明电力设备制造有限公司 Moving contact for tap switch
CN202758797U (en) * 2012-05-31 2013-02-27 佳宁电气有限公司 Contact structure of isolation switch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105590762A (en) * 2016-01-27 2016-05-18 山东泰开隔离开关有限公司 Heavy-current plug-in type conductive contact used for outdoor high-voltage disconnecting switch
CN105702517A (en) * 2016-03-31 2016-06-22 浙江奔电气有限公司 Moving contact
CN105869942A (en) * 2016-04-01 2016-08-17 广州白云电器设备股份有限公司 Three-position isolation switch for switch cabinet
CN108987133A (en) * 2018-08-24 2018-12-11 德力西电气有限公司 A kind of structure of contact terminal

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PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20121003