CN103839726A - High voltage isolation switch - Google Patents
High voltage isolation switch Download PDFInfo
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- CN103839726A CN103839726A CN201310744550.XA CN201310744550A CN103839726A CN 103839726 A CN103839726 A CN 103839726A CN 201310744550 A CN201310744550 A CN 201310744550A CN 103839726 A CN103839726 A CN 103839726A
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- Prior art keywords
- switch
- connecting plate
- insulator
- disconnecting link
- high voltage
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Abstract
The invention discloses a high voltage isolation switch. The high voltage isolation switch is long in service life, simple in structure and convenient to operate. The high voltage isolation switch comprises a base, wherein a wire inlet insulator is connected with one end of the base, a wire outlet insulator is connected with the other end of the base, a connecting plate is arranged at the upper end of the wire outlet insulator, a knife switch is hinged to the upper end of the wire inlet insulator, the other end of the knife switch is connected with the connecting plate, a clamping cap is arranged on the connecting plate, the interior of the clamping cap is splay, the connecting plate is inversely splay, the wire inlet insulator and the wire outlet insulator are made of epoxy resin, the knife switch is made of aluminum or aluminum alloy, and the surface, making contact with the connecting plate, of the knife switch is plated with silver. The high voltage isolation switch is applicable to various high-voltage circuits.
Description
Technical field
The present invention relates to high pressure and cut off field of switches, specifically, relate to a kind of high pressure and cut off switch.
Background technology
Isolating switch, generally refer to high voltage isolator, be that rated voltage is at 1kv and above isolating switch thereof, in high-voltage switch electric appliance, to use maximum a kind of electrical equipment, the principles and structure of itself is fairly simple, but because use amount is large, functional reliability requires high, and the impact of design, foundation and safe operation on electric substation, power plant is all larger.The main feature of disconnecting link is without arc extinguishing ability, can only in the situation that there is no load current, divide, close circuit.Isolating switch is mainly used for by needing the part having a power failure to isolate reliably with live part in high voltage distribution installation, to guarantee the safety of service work.
The disconnecting link of isolating switch is directly exposed in air at present, under using, easily produces oxidation in the left and right of water and oxygen, forms layer oxide film on surface, resistance is increased, while causing switch, moment caloric value increase, easily causes the damage of switch part, and shorten useful life.Therefore, be necessary to research and develop a kind of new partition switch.
At present, we retrieve the open source literature of some isolating switches, for example:
1. Chinese Patent Application No. 201320353423.2, open day on November 27th, 2013, this application case discloses a kind of high voltage isolator, it comprises disconnecting link, base, fixed contact, fixed head and post insulator, described disconnecting link comprises the copper coin and the securing member that is connected copper coin of two parallel placements, described fixed contact is mounted by means of bolts on the fixed head that lower surface is connected with post insulator, the upper and lower both ends horizontal of described copper coin is extended with the flange being wholely set with copper coin, and described flange is conflicted and is connected with bolt upper surface.Its weak point is: red copper resistance after oxidation increases, and while causing switch, moment caloric value increase, easily causes the damage of switch part, and shorten useful life.
2. Chinese Patent Application No. 201320387767.5, open day on December 4th, 2013, this application case discloses a kind of high voltage isolator, it comprises base, switch and insulated column, insulated column includes line end insulated column and leading-out terminal insulated column, lead-in wire terminal insulated column is provided with terminal block, one end of described switch is articulated with outlet insulated column, the other end matches with described terminal block, described switch is provided with metering hole, and the opening of described metering hole is gradually and increases towards the hinged end of switch from switch and terminal block abutting end.Its weak point is: switch resistance after oxidation increases, and while causing switch, moment caloric value increase, easily causes the damage of switch part, and shorten useful life.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide a kind of long service life, simple in structure, easy to operate high pressure cuts off switch.
For achieving the above object, the present invention is achieved by the following scheme:
A kind of high pressure cuts off switch, comprises base, and base one end connects lambda line insulator, the other end connects outlet insulator, and outlet insulator upper end is all provided with connecting plate, and lambda line insulator upper end is hinged with disconnecting link, the other end of disconnecting link is connected with connecting plate, and described connecting plate is provided with clamping cap.
Described clamping cap inside is Eight characters shape, and described connecting plate is herringbone shape.
The material of described disconnecting link is aluminum or aluminum alloy, and the area contacting with connecting plate is silver-plated.
The area that described connecting plate contacts with disconnecting link is silver-plated.
The material of described clamping cap is epoxy resin.
The material of described lambda line insulator and outlet insulator is epoxy resin.
Compared with prior art, the present invention has following beneficial effect:
1. long service life.Compared with traditional partition switch, the present invention uses clamping cap protection disconnecting link and terminal block, isolated sunlight and the oxidation of rainwater to disconnecting link and terminal block, the splayed structure of clamping cap makes contacting of disconnecting link and terminal block tightr simultaneously, prevents from relaxing rear generation spark damage switch; Disconnecting link adopts aluminium alloy manufacture, and the place of both contacts adopts silver-plated, has utilized silver to be not easy the characteristic of oxidation, has reduced electric current when switch opens and closes, thereby has reduced the caloric value of moment, has reduced the damage of part, has extended useful life.
2. simple in structure, easy maintenance.Number of spare parts of the present invention is few, on original basis, is transformed, simple in structure, and the easy maintenance in later stage is conducive to apply.
3. cost performance is high.Compare traditional partition switch, although the silver-plated cost that increased of the present invention, service time while is long, and not only cost performance is very high, also safe and reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is clamping cap of the present invention and terminal block assembling schematic diagram;
Parts title and sequence number in figure:
Embodiment
Describe the present invention below in conjunction with drawings and Examples, but do not limit the scope of the invention and range of application:
Embodiment 1:
As shown in Figure 1, the present invention includes base 1, base 1 one end connects lambda line insulator 2, the other end connects outlet insulator 3, outlet insulator 3 upper ends are all provided with connecting plate 4, and lambda line insulator 2 upper ends are hinged with disconnecting link 6, and the other end of disconnecting link 6 is connected with connecting plate 4, the material of disconnecting link 6 is aluminium, and connecting plate 4 is provided with clamping cap 5.
In the present embodiment; clamping cap 5 is in the time that high voltage isolator normally moves; can protect terminal block 4 and disconnecting link 6; the oxidation of isolated sunlight and rainwater butted line plate 4 and disconnecting link 6; reduce electric current when switch opens and closes; thereby reduce the caloric value of moment, reduced the damage of part, extended useful life.
Embodiment 2:
Be with the difference of embodiment 1: clamping cap 5 is inner is Eight characters shape, and connecting plate 4 is herringbone shape.
In the present embodiment, connecting plate 4 makes both contact tightr with the splayed structure of clamping cap 5, prevents from relaxing rear generation spark damage switch, has extended useful life.
Embodiment 3:
Be with the difference of embodiment 2: the material of disconnecting link 6 is aluminium alloy, the area contacting with connecting plate 4 is silver-plated.
In the present embodiment, utilize silver to be not easy the characteristic of oxidation, the electric current when having reduced line plate 4 and disconnecting link 6 and opening and closing, thus reduce the caloric value of moment, reduce the damage of part, extend useful life.
Embodiment 4:
Be with the difference of embodiment 3: the area that connecting plate 4 contacts with disconnecting link 6 is silver-plated.
In the present embodiment, the area contacting with disconnecting link 6 because of connecting plate 4 is silver-plated, and the resistance while contact with disconnecting link 6 is less, and the heat of generation is less, longer service life.
Embodiment 5:
Be with the difference of embodiment 4: the material of clamping cap 5 is epoxy resin.
Embodiment 6:
Be with the difference of embodiment 5: the material of lambda line insulator 2 and outlet insulator 3 is epoxy resin.
Claims (6)
1. a high pressure cuts off switch, comprise base (1), base (1) one end connects lambda line insulator (2), the other end connects outlet insulator (3), outlet insulator (3) upper end is all provided with connecting plate (4), lambda line insulator (2) upper end is hinged with disconnecting link (6), and the other end of disconnecting link (6) is connected with connecting plate (4), it is characterized in that: described connecting plate (4) is provided with clamping cap (5).
2. high pressure according to claim 1 cuts off switch, it is characterized in that: described clamping cap (5) is inner is Eight characters shape, and described connecting plate (4) is herringbone shape.
3. high pressure according to claim 1 and 2 cuts off switch, it is characterized in that: the material of described disconnecting link (6) is aluminum or aluminum alloy, and the area contacting with connecting plate (4) is silver-plated.
4. high pressure according to claim 3 cuts off switch, it is characterized in that: the area that described connecting plate (4) contacts with disconnecting link (6) is silver-plated.
5. high pressure according to claim 4 cuts off switch, it is characterized in that: the material of described clamping cap (5) is epoxy resin.
6. high pressure according to claim 5 cuts off switch, it is characterized in that: the material of described lambda line insulator (2) and outlet insulator (3) is epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310744550.XA CN103839726A (en) | 2013-12-30 | 2013-12-30 | High voltage isolation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310744550.XA CN103839726A (en) | 2013-12-30 | 2013-12-30 | High voltage isolation switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103839726A true CN103839726A (en) | 2014-06-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310744550.XA Pending CN103839726A (en) | 2013-12-30 | 2013-12-30 | High voltage isolation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103839726A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731610A (en) * | 2017-11-27 | 2018-02-23 | 云南电网有限责任公司昭通供电局 | Non-maintaining disconnecting switch |
-
2013
- 2013-12-30 CN CN201310744550.XA patent/CN103839726A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731610A (en) * | 2017-11-27 | 2018-02-23 | 云南电网有限责任公司昭通供电局 | Non-maintaining disconnecting switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140604 |
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| WD01 | Invention patent application deemed withdrawn after publication |