CN204884978U - Outdoor low pressure fusing formula load isolator - Google Patents
Outdoor low pressure fusing formula load isolator Download PDFInfo
- Publication number
- CN204884978U CN204884978U CN201520511813.7U CN201520511813U CN204884978U CN 204884978 U CN204884978 U CN 204884978U CN 201520511813 U CN201520511813 U CN 201520511813U CN 204884978 U CN204884978 U CN 204884978U
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- CN
- China
- Prior art keywords
- arc
- outdoor low
- low voltage
- insulation board
- moving contact
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- Withdrawn - After Issue
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Abstract
The utility model discloses an outdoor low pressure fusing formula load isolator, including isolator main part (1), isolator main part (1) mainly constitute by base, fuse -link, wiring board, the sub - pillar of silicon rubber insulation and the knife switch that installs on the sub - pillar of silicon rubber insulation, knife switch include moving contact, static contact, two shoe brake cutting boards, pull ring and compression spring, wherein: be equipped with an arc -extinguish chamber (2) in moving contact and plug -in strip board junction. Arc -extinguish chamber (2) mainly constitute by insulation board (201) and a plurality of nonrust steel sheets of U -shaped (202). This load isolator simple structure, reasonable in design science, low in production cost and can extinguish electric arc fast when the load operation of area.
Description
Technical field
The utility model relate to a kind of isolating switch, has been specifically related to a kind of outdoor low voltage Fuse Type load-break switch.
Background technology
Existing low-pressure fusing disconnecting switch, by mounting seat, porcelain insulator, connecting plate, enter line card, knife switch, fuse, device of operating a switch form, this unit switch is arranged on two porcelain insulators by after knife switch and fuse parallel connection by connecting plate, knife switch is made up of with the connecting elements being arranged at termination insulation porcelain rod, and fuse is arranged between the connector of described insulation porcelain rod termination.If Chinese Patent Application No. is that CN200720201627.9 discloses a kind of outdoor low pressure fusing switch, include base, be arranged on the static contact seat on base and moving contact seat, and fuse link, described moving contact seat is hinged with the blade that centre has groove, one end of this groove is enclosed within the both sides of moving contact seat, the other end connects with the both sides end face of static contact seat when switch closes, at the two ends of groove, the bolt that external diameter is set with compression spring is housed, blade is withstood in one end of compression spring, and one end that the other end withstands this blade of bolt connects with static contact seat when switch closes; Fuse link is fixed between moving contact seat and connecting plate; Static contact seat, moving contact seat and connecting plate are arranged on post insulator respectively.And for example the present inventor more first invention-number of patent application be 201220011324.1 disclose a kind of low-pressure fusing disconnecting switch, comprise base, silicon rubber insulator pillar, knife switch, fuse-link and the terminal block be arranged on silicon rubber insulator pillar, knife switch comprises moving contact, fixed contact, two shoe brake knife plates, draw ring and compression spring, described moving contact side is provided with the recessed tactile face of moving contact, and/or is provided with the recessed tactile face of annular in fixed contact side; The contact-making surface that described plug-in strip plate contacts with moving contact is provided with convex tactile face, front end, and the contact-making surface contacted with fixed contact is provided with circular convex tactile face.
These current isolating switches, when on-load operation, very easily produce long arc and not easily extinguish, bringing potential safety hazard, and easily cause damage to the critical piece of isolating switch to operating personnel.
Utility model content
The purpose of this utility model is the some shortcomings for existing in prior art, provides simple, the reasonable in design science of a kind of structure, production cost low and can the outdoor low voltage Fuse Type load-break switch of extinguish fast electric arc when on-load operation.
To achieve these goals, the utility model have employed following technical scheme:
A kind of outdoor low voltage Fuse Type load-break switch, comprises isolating switch main body; Described isolating switch main body is formed primarily of base, fuse-link, terminal block, silicon rubber insulator pillar and the knife switch be arranged on silicon rubber insulator pillar; Described knife switch comprises moving contact, fixed contact, two shoe brake knife plates, draw ring and compression spring; Wherein: be provided with an arc-extinguish chamber at moving contact and plug-in strip plate junction.
Further illustrate as of the present utility model, above-described arc-extinguish chamber is formed primarily of insulation board and some pieces of U-shaped stainless steel substrates.
Further illustrate as of the present utility model, above-described insulation board comprises insulated left side plate, side insulation right plate and rear side insulation board; Described insulated left side plate, side insulation right plate are respectively equipped with installing hole; Described U-shaped stainless steel substrates is fixedly mounted between insulated left side plate and side insulation right plate by installing hole.Insulation board adopts the outdoor resin of high-quality to make, can long-time anti-ultraviolet infringement.
In the utility model, the arc-extinguish chamber be made up of three insulation boards and U-shaped stainless steel substrates can well be centered around around the junction of moving contact and plug-in strip plate; The U-shaped stainless steel substrates be stacked in inside insulation board effectively can attract electric arc, and dispersion electric arc, weakens electric arc, electric arc is extinguished faster.
Further illustrate as of the present utility model, above-described rear side insulation board is provided with through hole.Through hole is set and is convenient to air circulation, be beneficial to breaking arc and heat radiation.
Further illustrate as of the present utility model, the setting space of above-described U-shaped stainless steel substrates is 5 ~ 10mm.This number range of U-shaped stainless steel substrates spacing between any two, better can attract electric arc, cut off electric current, and is convenient to the heat radiation of U-shaped stainless steel substrates.
In the utility model, the structure of isolating switch main body mainly adopts low-pressure fusing disconnecting switch (one or three all can) in the market, or the structure of the isolating switch product (as patent CN201220011324.1) formerly invented for the present inventor, for prior art, therefore do not described in utility model content.Innovative point of the present utility model is have developed the arc-extinguish chamber being applicable to isolating switch, and it can extinguish fast electric arc effectively, and reduce the danger of on-load operation, protection product, extends working time.
The beneficial effect that the utility model possesses:
1. simple, the reasonable in design science of isolating switch structure of the present utility model, technological transformation or production cost is low and can extinguish fast electric arc when on-load operation.
2. the arc-extinguish chamber increased, easily produces, cost is low, arc quenching effect good; Insulation board and the U-shaped stainless steel substrates of outdoor resin material all can use for a long time out of doors, and its insulation property, electric conductivity are constant, ensure the steady operation that isolating switch can be long-term; U-shaped stainless steel substrates is stacked at a certain distance inside insulation board and can be good at cutting off arc current, and is convenient to heat radiation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model one embodiment.
Fig. 2 is the structural representation of arc-extinguish chamber in the utility model one embodiment.
Fig. 3 is the structural representation at another visual angle of arc-extinguish chamber in the utility model one embodiment.
Reference numeral: 1-isolating switch main body, 2-arc-extinguish chamber, 201-insulation board, 202-U shape stainless steel substrates.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Embodiment 1:
As shown in Figure 1, a kind of outdoor low voltage Fuse Type load-break switch, comprises isolating switch main body 1; Described isolating switch main body 1 is formed primarily of base, fuse-link, terminal block, silicon rubber insulator pillar and the knife switch be arranged on silicon rubber insulator pillar; Described knife switch comprises moving contact, fixed contact, two shoe brake knife plates, draw ring and compression spring; Wherein, an arc-extinguish chamber 2 is provided with at moving contact and plug-in strip plate junction.As shown in Figure 2,3, described arc-extinguish chamber 2 is formed primarily of insulation board 201 and some pieces of U-shaped stainless steel substrates 202.Described insulation board 201 comprises insulated left side plate, side insulation right plate and rear side insulation board; Described insulated left side plate, side insulation right plate are respectively equipped with installing hole; Described U-shaped stainless steel substrates 202 is fixedly mounted between insulated left side plate and side insulation right plate by installing hole.Described rear side insulation board is provided with through hole.The setting space of described U-shaped stainless steel substrates is 8mm.
Embodiment 2:
The difference of the present embodiment and embodiment is only: the setting space of described U-shaped stainless steel substrates is 5mm.
Embodiment 3:
The difference of the present embodiment and embodiment is only: the setting space of described U-shaped stainless steel substrates is 10mm.
Claims (5)
1. an outdoor low voltage Fuse Type load-break switch, comprises isolating switch main body (1); Described isolating switch main body (1) is formed primarily of base, fuse-link, terminal block, silicon rubber insulator pillar and the knife switch be arranged on silicon rubber insulator pillar; Described knife switch comprises moving contact, fixed contact, two shoe brake knife plates, draw ring and compression spring; It is characterized in that: be provided with an arc-extinguish chamber (2) at moving contact and plug-in strip plate junction.
2. outdoor low voltage Fuse Type load-break switch according to claim 1, is characterized in that: described arc-extinguish chamber (2) is formed primarily of insulation board (201) and some pieces of U-shaped stainless steel substrates (202).
3. outdoor low voltage Fuse Type load-break switch according to claim 2, is characterized in that: described insulation board (201) comprises insulated left side plate, side insulation right plate and rear side insulation board; Described insulated left side plate, side insulation right plate are respectively equipped with installing hole; Described U-shaped stainless steel substrates (202) is fixedly mounted between insulated left side plate and side insulation right plate by installing hole.
4. outdoor low voltage Fuse Type load-break switch according to claim 3, is characterized in that: described rear side insulation board is provided with through hole.
5. outdoor low voltage Fuse Type load-break switch according to claim 2, is characterized in that: the setting space of described U-shaped stainless steel substrates is 5 ~ 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520511813.7U CN204884978U (en) | 2015-07-15 | 2015-07-15 | Outdoor low pressure fusing formula load isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520511813.7U CN204884978U (en) | 2015-07-15 | 2015-07-15 | Outdoor low pressure fusing formula load isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204884978U true CN204884978U (en) | 2015-12-16 |
Family
ID=54829326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520511813.7U Withdrawn - After Issue CN204884978U (en) | 2015-07-15 | 2015-07-15 | Outdoor low pressure fusing formula load isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204884978U (en) |
-
2015
- 2015-07-15 CN CN201520511813.7U patent/CN204884978U/en not_active Withdrawn - After Issue
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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: 20191226 Address after: 537100 Guigang Power Supply Bureau, 89 Minzhu Road, Guigang City, Guangxi Zhuang Autonomous Region Patentee after: GUIGANG POWER SUPPLY BUREAU, GRID COMPANY OF GUANGXI Address before: 537133 Guigang Power Supply Bureau, Guigang 89, Guigang, the Guangxi Zhuang Autonomous Region Co-patentee before: GUANGXI HEXIE ELECTRIC POWER TECHNOLOGY Co.,Ltd. Patentee before: GUIGANG POWER SUPPLY BUREAU, GRID COMPANY OF GUANGXI |
|
| TR01 | Transfer of patent right | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151216 Effective date of abandoning: 20221101 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20151216 Effective date of abandoning: 20221101 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |