CN203367205U - Arc-extinguishing-chamber type single pillar drop-out fuse with overvoltage suppression structure - Google Patents
Arc-extinguishing-chamber type single pillar drop-out fuse with overvoltage suppression structure Download PDFInfo
- Publication number
- CN203367205U CN203367205U CN 201320480752 CN201320480752U CN203367205U CN 203367205 U CN203367205 U CN 203367205U CN 201320480752 CN201320480752 CN 201320480752 CN 201320480752 U CN201320480752 U CN 201320480752U CN 203367205 U CN203367205 U CN 203367205U
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- Prior art keywords
- arc
- extinguishing
- contact
- moving contact
- fuse
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- Expired - Fee Related
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Abstract
The utility model discloses an arc-extinguishing-chamber type single pillar drop-out fuse with an overvoltage suppression structure. The arc-extinguishing-chamber type single pillar drop-out fuse includes a supporting tube, and a fuse tube which is arranged on the supporting tube; the fuse tube is provided with a moving contact; the supporting tube is provided with a static contact cooperating with the moving contact; a contact area between the moving contact and the static contact is provided with an arc extinguishing chamber; an overvoltage suppressor is arranged in the arc extinguishing chamber; one end of the overvoltage suppressor is movably connected with the static contact; and when the moving contact and the static contact are closed, the overvoltage suppressor is electrically connected between the moving contact and the static contact. The arc-extinguishing-chamber type single pillar drop-out fuse with the overvoltage suppression structure is simple in structure, is provided with the overvoltage suppressor, and can effectively improve the safety and stability to a certain extent; and the great practicability is realized. Furthermore, the arc-extinguishing-chamber type single pillar drop-out fuse with the overvoltage suppression structure also comprises an anti-partial insulation groove and an anti-partial insulating clamping rod, so that the deflection of the moving and static contacts can be prevented in operation; and the stability and reliability are further improved.
Description
Technical field
The utility model belongs to the fuse switch field, is specifically related to a kind of arc-extinguishing-cover type one-mast support drop out fuse with Overvoltage suppressing structure.
Background technology
The fuse switch of prior art is generally the one-mast support setting with or without arc-extinguish chamber; it can reach the fuse protection effect to a certain extent; but be easier to occur the surface creepage phenomenon while adopting one-mast support to be arranged on overvoltage; yet the one-mast support of prior art does not have, overvoltage is eliminated or the inhibition structure; there is certain safety in utilization in it; simultaneously; the fuse switch of one-mast support also is easier to occur deflection when operation; also can affect its stability in use to a certain extent, affect to a certain extent its practicality.
Summary of the invention
The purpose of this utility model is to provide a kind of arc-extinguishing-cover type one-mast support drop out fuse with Overvoltage suppressing structure of simple in structure, safe to use and good stability.
The technical scheme that realizes the utility model purpose is a kind of arc-extinguishing-cover type one-mast support drop out fuse with Overvoltage suppressing structure, comprise supporting tube, be arranged on the fuse tube on supporting tube, described fuse tube is provided with moving contact, described supporting tube is provided with the fixed contact matched with described moving contact, be provided with arc-extinguish chamber at described moving contact and described fixed contact contact position, be provided with excess voltage suppressor in described arc-extinguish chamber, one end of described excess voltage suppressor and described fixed contact are flexibly connected, when described moving contact and described fixed contact closure, described excess voltage suppressor is connected electrically between described moving contact and described fixed contact.
Be provided with anti-bias isolation recesses on described fixed contact, be provided with the anti-bias insulation kelly matched with described anti-bias isolation recesses on described moving contact, when described moving contact and described fixed contact are closed, described anti-bias insulation kelly fixes in described anti-bias isolation recesses.
The utlity model has positive effect: of the present utility model simple in structure, there is excess voltage suppressor, can effectively improve safety in utilization and stability to a certain extent, practicality is good, further, also be provided with anti-bias isolation recesses and anti-bias insulation kelly, can prevent in operation, the situation of dynamic/static contact deflection occurs, and has further improved stability in use and reliability.
The accompanying drawing explanation
For content of the present utility model is more likely to be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail, wherein:
Fig. 1 is structural representation of the present utility model.
Embodiment
(embodiment 1)
Fig. 1 has shown a kind of embodiment of the present utility model, and wherein Fig. 1 is structural representation of the present utility model.
See Fig. 1, a kind of arc-extinguishing-cover type one-mast support drop out fuse with Overvoltage suppressing structure, comprise supporting tube 1, be arranged on the fuse tube 2 on supporting tube 1, described fuse tube 2 is provided with moving contact 3, described supporting tube 1 is provided with the fixed contact 4 matched with described moving contact 3, be provided with arc-extinguish chamber 5 at described moving contact 3 with described fixed contact 4 contact positions, be provided with excess voltage suppressor 6 in described arc-extinguish chamber 5, one end of described excess voltage suppressor 6 and described fixed contact 4 are flexibly connected, when described moving contact 3 and described fixed contact 4 are closed, described excess voltage suppressor 6 is connected electrically between described moving contact 3 and described fixed contact 4.
Be provided with anti-bias isolation recesses 7 on described fixed contact 4, be provided with the anti-bias insulation kelly 8 matched with described anti-bias isolation recesses 7 on described moving contact 3, when described moving contact 3 is closed with described fixed contact 4, described anti-bias insulation kelly 8 fixes in described anti-bias isolation recesses 7.
Obviously, above-described embodiment of the present utility model is only for the utility model example clearly is described, and is not the restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all execution modes.And these belong to apparent variation or the change that connotation of the present utility model extends out and still belong to protection range of the present utility model.
Claims (2)
1. the arc-extinguishing-cover type one-mast support drop out fuse with Overvoltage suppressing structure, comprise supporting tube, be arranged on the fuse tube on supporting tube, described fuse tube is provided with moving contact, described supporting tube is provided with the fixed contact matched with described moving contact, it is characterized in that: at described moving contact and described fixed contact contact position, be provided with arc-extinguish chamber, be provided with excess voltage suppressor in described arc-extinguish chamber, one end of described excess voltage suppressor and described fixed contact are flexibly connected, when described moving contact and described fixed contact closure, described excess voltage suppressor is connected electrically between described moving contact and described fixed contact.
2. the arc-extinguishing-cover type one-mast support drop out fuse with Overvoltage suppressing structure according to claim 1, it is characterized in that: be provided with anti-bias isolation recesses on described fixed contact, be provided with the anti-bias insulation kelly matched with described anti-bias isolation recesses on described moving contact, when described moving contact and described fixed contact are closed, described anti-bias insulation kelly fixes in described anti-bias isolation recesses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320480752 CN203367205U (en) | 2013-08-01 | 2013-08-01 | Arc-extinguishing-chamber type single pillar drop-out fuse with overvoltage suppression structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320480752 CN203367205U (en) | 2013-08-01 | 2013-08-01 | Arc-extinguishing-chamber type single pillar drop-out fuse with overvoltage suppression structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203367205U true CN203367205U (en) | 2013-12-25 |
Family
ID=49814928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320480752 Expired - Fee Related CN203367205U (en) | 2013-08-01 | 2013-08-01 | Arc-extinguishing-chamber type single pillar drop-out fuse with overvoltage suppression structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203367205U (en) |
-
2013
- 2013-08-01 CN CN 201320480752 patent/CN203367205U/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 |
Granted publication date: 20131225 Termination date: 20140801 |
|
| EXPY | Termination of patent right or utility model |