CN203882945U - Out-door drop-off fuse - Google Patents
Out-door drop-off fuse Download PDFInfo
- Publication number
- CN203882945U CN203882945U CN201420305267.7U CN201420305267U CN203882945U CN 203882945 U CN203882945 U CN 203882945U CN 201420305267 U CN201420305267 U CN 201420305267U CN 203882945 U CN203882945 U CN 203882945U
- Authority
- CN
- China
- Prior art keywords
- fuse
- elastic clamping
- clamping portion
- cartridge fuse
- spacing hook
- 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
Links
- 239000012212 insulator Substances 0.000 claims abstract description 16
- 230000003068 static effect Effects 0.000 claims abstract description 12
- 239000007769 metal material Substances 0.000 claims description 3
- 239000013536 elastomeric material Substances 0.000 claims description 2
- 241001125877 Gobio gobio Species 0.000 claims 1
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 241001125879 Gobio Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Fuses (AREA)
Abstract
The utility model discloses an out-door drop-off fuse. The out-door drop-off fuse includes an insulator and a fuse tube. The out-door drop-off fuse also includes a upper wiring plate and a lower wiring plate which are respectively arranged at the two ends of the insulator and are used for wiring, a static contact piece which is electrically connected to the upper wiring plate, an expendable cap which is disposed on an upper end of the fuse tube and is electrically connected to the static contact piece, a support and a trunnion which are disposed on an lower end of the insulator and are used for movably connecting the fuse tube, and a limiting hook which is disposed under the static contact piece and is arranged in a U-shaped structure. Both the two opposite faces of the limiting hook are provided with elastic clamping parts. A cross section of each elastic clamping part is arranged in an arch-shaped structure, wherein each arch includes a projection part. The two projection parts are arranged oppositely. A minimum distance between the two projection parts is less than a diameter of the fuse tube. The utility model provides the out-door drop-off fuse with which the fuse tube can be fixed better. In addition, a breaking speed can be increased.
Description
Technical field
The utility model relates to a kind of fuse, and more particularly, it relates to a kind of outdoor drop-out fuse.
Background technology
Outdoor drop-out fuse includes insulator and cartridge fuse, cartridge fuse forms the conductive contact structure that can cut-off by the switch contact at two ends with the terminal block that is mechanically anchored in insulator both ends, insulator middle part is also provided with ground connection mounting plate and is connected to the spacing hook etc. of insulator upper end by connector, this technical products at AC distribution circuit rated range internal cutting off fault current or excess load electric current with protection circuit and transformer, in prior art, spacing hook is U-shaped setting conventionally, described in the situation that closing a floodgate, described cartridge fuse pushes cartridge fuse in U-shaped spacing hook by applied external force, cartridge fuse is conflicted with fixed contact accurately by the position-limiting action of spacing hook, cartridge fuse is connected in spacing hook and is fixed simultaneously, in cartridge fuse and spacing hook, be only fixed by frictional force, can not reach good fixed effect, and in the process of cartridge fuse fusing, also usually can make the U-shaped spacing hook that detaches that cartridge fuse can not be very fast because of some extraneous factors, so the structure of spacing hook need to improve.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of outdoor drop-out fuse that can be better fixing for cartridge fuse, and can improve the speed that cartridge fuse disconnects.
For achieving the above object, the utility model provides following technical scheme: a kind of outdoor drop-out fuse, comprise insulator, cartridge fuse, be arranged on insulator two ends for the upper wiring board of wiring and lower terminal block, the static contact being electrically connected with upper wiring board, be arranged on the pressure releasing cap that cartridge fuse upper end is electrically connected with static contact, be arranged on insulator lower end for support and the gudgeon of cartridge fuse flexible connection and be arranged on the spacing hook below static contact, described spacing hook is U-shaped setting, two faces that described spacing hook is relative are provided with elastic clamping portion, described elastic clamping portion cross section is arch setting, described arch includes lug boss and described lug boss arranges in opposite directions, between described two lug bosses, minimum distance is less than cartridge fuse diameter.
By adopting technique scheme, in the time that cartridge fuse snaps in U-shaped spacing hook, cartridge fuse can push two elastic clamping portions, in the time clamp-oning two elastic clamping portions, because two elastic clamping portions are arch, can help cartridge fuse spacing, prevent that cartridge fuse from skidding off from spacing hook, when after cartridge fuse fusing, cartridge fuse U-shaped spacing hook outwards when motion dorsad, after once described cartridge fuse has been crossed the nearest distance of two arches, two elastic clamping portions just can be used elastic reset potential energy to promote cartridge fuse and outwards move, cartridge fuse can be disconnected smoothly fast.
The utility model is further set to: two fixing end faces of described spacing hook and elastic clamping portion butt are all horizontal plane setting.
By adopting technique scheme, facilitate the fixing of elastic clamping portion, and made cartridge fuse there will not be skew when making elastic clamping portion be fixed in spacing hook, ensure the steady combined floodgate of cartridge fuse.
The utility model is further set to: described elastic clamping portion includes resistance surface and lower resistance surface, described upper resistance surface is towards U-shaped opening part and described lower resistance surface U-shaped opening part dorsad, described lower resistance surface surface is coarse processing, and the distance between described lower resistance surface and U-shaped bottom surface is less than cartridge fuse diameter.
By adopting technique scheme, further improve the bed knife of time resistance surface for cartridge fuse, cartridge fuse can be stuck in to U-shaped spacing hook bottom.
The utility model is further set to: described elastic clamping portion adopts elastic metallic material to make, and between described elastic clamping portion and spacing hook, is filled with elastomeric material.
By adopting technique scheme, ensure the elastic effect of elastic clamping portion, improve bed knife and promoted effect.
Brief description of the drawings
Fig. 1 is the spacing hook structure schematic diagram of the utility model outdoor drop-out fuse embodiment;
Fig. 2 is the overall structure schematic diagram of the utility model outdoor drop-out fuse embodiment.
Embodiment
Referring to figs. 1 through Fig. 2, the utility model outdoor drop-out fuse embodiment is described further.
A kind of outdoor drop-out fuse, comprise insulator 8, cartridge fuse 3, be arranged on upper wiring board 72 and the lower terminal block 71 of insulator 8 two ends for wiring, the static contact being electrically connected with upper wiring board 72, be arranged on the pressure releasing cap 5 that cartridge fuse 3 upper ends are electrically connected with static contact, be arranged on support 7 and the gudgeon 6 that insulator 8 lower ends are flexibly connected for cartridge fuses 3 and the spacing hook 1 that is arranged on static contact below, described spacing hook 1 is U-shaped setting, two faces that described spacing hook 1 is relative are provided with elastic clamping portion 4, described elastic clamping portion 4 cross sections are arch setting, described arch includes lug boss and described lug boss arranges in opposite directions, between described two lug bosses, minimum distance is less than cartridge fuse 3 diameters.
By adopting technique scheme, in the time that cartridge fuse 3 snaps in U-shaped spacing hook 1, cartridge fuse 3 can push two elastic clamping portions 4, in the time clamp-oning two elastic clamping portions 4, because two elastic clamping portions 4 are arch, can help cartridge fuse 3 spacing, prevent that cartridge fuse 3 from skidding off from spacing hook 1, when after cartridge fuse 3 fusing, cartridge fuse 3 U-shaped spacing hook 1 outwards when motion dorsad, after once described cartridge fuse 3 has been crossed the nearest distance of two arches, two elastic clamping portions 4 just can be used elastic reset potential energy to promote cartridge fuse 3 and outwards move, cartridge fuse 3 can be disconnected smoothly fast.
Described spacing hook 1 is all horizontal plane setting with two end faces that elastic clamping portion 4 butts are fixed.
By adopting technique scheme, facilitate the fixing of elastic clamping portion 4, and made cartridge fuse 3 there will not be skew when making elastic clamping portion 4 be fixed in spacing hook 1, ensure the steady combined floodgate of cartridge fuse 3.
Described elastic clamping portion 4 includes resistance surface 42 and lower resistance surface 41, described upper resistance surface 42 is towards U-shaped opening part and described lower resistance surface 41 U-shaped opening part dorsad, described lower resistance surface 41 surfaces are coarse processing, and the distance between described lower resistance surface 41 and U-shaped bottom surface is less than cartridge fuse 3 diameters.
By adopting technique scheme, further improve the bed knife of time resistance surface 41 for cartridge fuse 3, cartridge fuse 3 can be stuck in to U-shaped spacing hook 1 bottom.
Described elastic clamping portion 4 adopts elastic metallic material to make, and between described elastic clamping portion 4 and spacing hook 1, is filled with rubber 2 materials.
By adopting technique scheme, ensure the elastic effect of elastic clamping portion 4, improve bed knife and promoted effect.
Claims (4)
1. an outdoor drop-out fuse, comprise insulator, cartridge fuse, be arranged on insulator two ends for the upper wiring board of wiring and lower terminal block, the static contact being electrically connected with upper wiring board, be arranged on the pressure releasing cap that cartridge fuse upper end is electrically connected with static contact, be arranged on insulator lower end for support and the gudgeon of cartridge fuse flexible connection and be arranged on the spacing hook below static contact, described spacing hook is U-shaped setting, it is characterized in that: two faces that described spacing hook is relative are provided with elastic clamping portion, described elastic clamping portion cross section is arch setting, described arch includes lug boss and described lug boss arranges in opposite directions, between described two lug bosses, minimum distance is less than cartridge fuse diameter.
2. outdoor drop-out fuse according to claim 1, is characterized in that: two fixing end faces of described spacing hook and elastic clamping portion butt are all horizontal plane setting.
3. outdoor drop-out fuse according to claim 2, it is characterized in that: described elastic clamping portion includes resistance surface and lower resistance surface, described upper resistance surface is towards U-shaped opening part and described lower resistance surface U-shaped opening part dorsad, described lower resistance surface surface is coarse processing, and the distance between described lower resistance surface and U-shaped bottom surface is less than cartridge fuse diameter.
4. outdoor drop-out fuse according to claim 3, is characterized in that: described elastic clamping portion adopts elastic metallic material to make, and between described elastic clamping portion and spacing hook, is filled with elastomeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305267.7U CN203882945U (en) | 2014-06-10 | 2014-06-10 | Out-door drop-off fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305267.7U CN203882945U (en) | 2014-06-10 | 2014-06-10 | Out-door drop-off fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203882945U true CN203882945U (en) | 2014-10-15 |
Family
ID=51683419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420305267.7U Expired - Fee Related CN203882945U (en) | 2014-06-10 | 2014-06-10 | Out-door drop-off fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203882945U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108376633A (en) * | 2018-04-11 | 2018-08-07 | 天立电机（宁波）有限公司 | A kind of fuse bogey |
| CN110911252A (en) * | 2019-12-11 | 2020-03-24 | 岳西县和祥电子科技有限公司 | High-voltage vacuum load switch-fuse combined electrical apparatus |
| CN110970276A (en) * | 2020-01-18 | 2020-04-07 | 坦帕（福建）电气有限公司 | Drop-out fuse |
-
2014
- 2014-06-10 CN CN201420305267.7U patent/CN203882945U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108376633A (en) * | 2018-04-11 | 2018-08-07 | 天立电机（宁波）有限公司 | A kind of fuse bogey |
| CN108376633B (en) * | 2018-04-11 | 2024-04-26 | 天立电机（宁波）有限公司 | Fuse bears device |
| CN110911252A (en) * | 2019-12-11 | 2020-03-24 | 岳西县和祥电子科技有限公司 | High-voltage vacuum load switch-fuse combined electrical apparatus |
| CN110970276A (en) * | 2020-01-18 | 2020-04-07 | 坦帕（福建）电气有限公司 | Drop-out fuse |
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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: 20141015 |