CN203895339U - Static contact of high-voltage isolating switch - Google Patents
Static contact of high-voltage isolating switch Download PDFInfo
- Publication number
- CN203895339U CN203895339U CN201420284634.XU CN201420284634U CN203895339U CN 203895339 U CN203895339 U CN 203895339U CN 201420284634 U CN201420284634 U CN 201420284634U CN 203895339 U CN203895339 U CN 203895339U
- Authority
- CN
- China
- Prior art keywords
- substrate
- contact
- knife sheet
- isolating switch
- contact knife
- 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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- Manufacture Of Switches (AREA)
Abstract
A static contact of a high-voltage isolating switch comprises a substrate (1) and a contact blade (2). The substrate (1) is provided with two or more connecting holes (11) at the parts which correspond with the contact blade (2). A conical hole (12) is arranged below each connecting hole (11). The bottom surface of the contact blade (2) which corresponds with the connecting holes (11) of the substrate is provided with screwed holes (21). Fastening bolts (3) are arranged for fixedly connecting the substrate (1) with the contact blade (2) through the connecting holes (11) and the screwed holes (21). The top surface of each fastening bolt (3) is lower than the bottom surface of the substrate (1). The substrate (1) is connected with the contact blade (2) through soldered members (4). The soldered member (4) is welded on the top surface of each fastening bolt (3). The surface of each soldered member (4) is level with the bottom surface of the substrate (1). According to the technical solution of the static contact, because the static contact of the high-voltage isolating switch is machined by the substrate and the contact blade, high material utilization rate and low contact cost are realized; and simultaneously processing technology can be further simplified.
Description
Technical field
The utility model relates to a kind of isolating switch, the contact that particularly a kind of isolating switch is used.
Background technology
The contact of high voltage isolator is the strength member of isolating switch, and the quality of contact directly has influence on the electric conductivity of isolating switch product.As depicted in figs. 1 and 2, the fixed contact of high voltage isolator generally includes substrate and the contact knife sheet that one connects.The processing method of contact can be divided into following three kinds for a long time:
Method one: after rough-cast,, through metal cutting machine-shaping, the advantage of this processing method is easy moulding, particularly complex-shaped part; Shortcoming is: the phenomenon such as shrinkage cavity and porosity and burning into sand may appear in the contact inside after processing, and poor electric conductivity need consume compared with macro-energy and cause environmental pollution when casting, and surface is smooth not and more coarse, has the defect such as wedge angle, burr.
Method two: forge machine-shaping.The advantage of this processing method is that contact conducts electricity very well, and good looking appearance is without the defect such as burr, wedge angle; Shortcoming is: raw material need heat lot of energy, and the contact format a lot of molds of many, different need and equipment investment are very large.
Method three: section bar is processed aftershaping through metal cutting.The advantage of this processing method is that contact conducts electricity very well, and shortcoming is that metal cutting labor content is large, and stock utilization is very low, causes contact cost to increase.
Utility model content
Technical problem to be solved in the utility model is to overcome prior art defect, and original structure is improved, and to reduce material usage, reduces costs, and can simplify technique.
Technical solution adopted in the utility model is:
A kind of high-voltage isolating switch static contact head, comprise substrate 1 and contact knife sheet 2, it is characterized in that the corresponding contact knife sheet of substrate 12 places are provided with two and above connecting hole 11, connecting hole 11 is bellmouth below, contact knife sheet 2 bottom surfaces of the installing hole 11 of counterpart substrate 1 are provided with screwed hole 21, being provided with fastening bolt 3 is fixedly connected substrate 1 and contact knife sheet 2 by connecting hole 11 and screwed hole 21, the bottom surface of the end face of fastening bolt 3 and substrate 1 is lower than the bottom surface of substrate 1, between substrate 1 and contact knife sheet 2, be also connected by silver soldering 4, on the end face of fastening bolt 3, be welded with silver soldering 4, the surface of its silver soldering 4 is concordant with the bottom surface of substrate 1.
Processing technology of the present utility model is for to be divided into two parts by contact part, respectively substrate 1 and contact knife sheet, wherein substrate and contact knife sheet all available section bar through cut off and gold cut processing aftershaping, and then substrate and contact knife sheet are tightened with fastening bolt, then with silver brazing bar to connecting surface and bolt end face between substrate and contact knife sheet with carrying out silver brazing welding.
The major advantage of technical solutions of the utility model has:
(1) substrate and contact knife sheet all can be purchased the section bar of machine-shaping, through metal cutting processing aftershaping; Stock utilization is very high, and substantially without material unaccounted-for (MUF), cost is low;
(2) substrate and contact knife sheet are after silver brazing welding, and contact performance is good, and contact strength is high, and detect through loop resistance, and the loop resistance of part all reaches every technical requirement of isolation switch contact;
(3) substrate and contact knife sheet are fastening high through silver brazing weld strength again through fastening bolt, meet the requirement of strength of isolation switch contact completely;
(4) piece surface after processing is bright and clean smooth, without the defect such as wedge angle, burr.
The beneficial effects of the utility model are: technical solutions of the utility model are owing to adopting substrate and two parts of contact knife sheet to process, and stock utilization is very high, and contact cost is low, further simplified processing process of while.
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Brief description of the drawings:
Fig. 1 is that the contact master of the isolating switch of prior art looks schematic diagram;
Fig. 2 is the contact schematic side view of the isolating switch of prior art; ;
Fig. 3 the utility model example structure schematic diagram;
Fig. 4 is the utility model embodiment mounting structure schematic diagram.
In figure: 1-substrate; 2-contact knife sheet; 3-fastening bolt; 4-silver soldering; 11-connecting hole; 12-bellmouth; 21-screwed hole.
Embodiment
As shown in Figure 3 and Figure 4, a kind of high-voltage isolating switch static contact head, comprise substrate 1 and contact knife sheet 2, it is characterized in that the corresponding contact knife sheet of substrate 12 places are provided with two and above connecting hole 11, connecting hole 11 is bellmouth 12 below, contact knife sheet 2 bottom surfaces of the installing hole 11 of counterpart substrate 1 are provided with screwed hole 21, being provided with fastening bolt 3 is fixedly connected substrate 1 and contact knife sheet 2 by connecting hole 11 and screwed hole 21, the bottom surface of the end face of fastening bolt 3 and substrate 1 is lower than the bottom surface of substrate 1, between substrate 1 and contact knife sheet 2, be also connected by silver soldering 4, on the end face of fastening bolt 3, be welded with silver soldering 4, the surface of its silver soldering 4 is concordant with the bottom surface of substrate 1.
Processing technology of the present utility model is for to be divided into two parts by contact part, respectively substrate 1 and contact knife sheet 2, wherein substrate 1 and contact knife sheet 2 all available section bar through cut off and gold cut processing aftershaping, and then substrate 1 and contact knife sheet 2 use fastening bolts 3 are tightened, then with silver brazing bar to connecting surface between substrate 1 and contact knife sheet 2 and fastening bolt 3 end faces with carrying out silver brazing welding.The utility model substrate 1 and contact knife sheet 2 all can be purchased the section bar of machine-shaping, through metal cutting processing aftershaping; Stock utilization is very high, and substantially without material unaccounted-for (MUF), cost is low; Substrate 1 and contact knife sheet 2 are after silver brazing welding, and contact performance is good, and contact strength is high, and detect through loop resistance, and the loop resistance of part all reaches every technical requirement of isolation switch contact; Substrate 1 and contact knife sheet 2 are fastening high through silver brazing weld strength again through fastening bolt 3, meet the requirement of strength of isolation switch contact completely; Piece surface after processing is bright and clean smooth, without the defect such as wedge angle, burr; Can not increase equipment investment, available existing equipment is produced.Technical solutions of the utility model are owing to adopting substrate 1 and 2 two parts of contact knife sheet to process, and stock utilization is very high, and contact cost is low, further simplified processing process of while.
Claims (1)
1. a high-voltage isolating switch static contact head, comprise substrate (1) and contact knife sheet (2), it is characterized in that the corresponding contact knife sheet of substrate (1) (2) locates to be provided with two and above connecting hole (11), connecting hole (11) is bellmouth (12) below, contact knife sheet (2) bottom surface of the installing hole (11) of counterpart substrate (1) is provided with screwed hole (21), being provided with fastening bolt (3) is fixedly connected substrate (1) and contact knife sheet (2) by connecting hole (11) and screwed hole (21), the bottom surface of the end face of fastening bolt (3) and substrate (1) is lower than the bottom surface of substrate (1), between substrate (1) and contact knife sheet (2), be also connected by silver soldering (4), on the end face of fastening bolt (3), be welded with silver soldering (4), the surface of its silver soldering (4) is concordant with the bottom surface of substrate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284634.XU CN203895339U (en) | 2014-05-30 | 2014-05-30 | Static contact of high-voltage isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284634.XU CN203895339U (en) | 2014-05-30 | 2014-05-30 | Static contact of high-voltage isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895339U true CN203895339U (en) | 2014-10-22 |
Family
ID=51721705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420284634.XU Expired - Fee Related CN203895339U (en) | 2014-05-30 | 2014-05-30 | Static contact of high-voltage isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203895339U (en) |
-
2014
- 2014-05-30 CN CN201420284634.XU patent/CN203895339U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20170530 |