CN201725761U - Outdoor type fuse - Google Patents
Outdoor type fuse Download PDFInfo
- Publication number
- CN201725761U CN201725761U CN2010201375717U CN201020137571U CN201725761U CN 201725761 U CN201725761 U CN 201725761U CN 2010201375717 U CN2010201375717 U CN 2010201375717U CN 201020137571 U CN201020137571 U CN 201020137571U CN 201725761 U CN201725761 U CN 201725761U
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- contact terminal
- utility
- model
- fusion tube
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Abstract
The embodiment of the utility model discloses an outdoor type fuse. The outdoor type fuse comprises a fixed support and a movable fusion tube which are formed through die casting; the upper movable contact terminal of the movable fusion tube adopts a spherical contact terminal with a spherical contact surface; an upper static contact terminal switch contact plate matched with the upper moving contact terminal is fixed on the fixed support; and a concave spherical surface is arranged in a position where the upper static contact terminal switch contact plate is matched with the upper movable contact terminal. The switch contact terminal of the utility model adopts a spherical embedded-type surface matching contact terminal structure, when in a locked state, the moving contact terminal with the spherical contact surface is embedded in the fixed contact terminal, so that tight surface contact of the contact terminal part can be ensured, and the phenomenon of overheat caused by bad contact terminal contact can be avoided. The fixed support and the movable fusion tube, provided by the utility model, adopt die casting process, and have the advantages of high intensity and strong stretching capability.
Description
Technical field
The utility model relates to the electric elements technical field, more particularly, relates to a kind of outdoor type fuse.
Background technology
The outdoor type fuse is made up of fixing part, movable fusion tube and the fuse supported, fixedly support sector is divided into porcelain or composite insulation.Fuse is penetrated in the movable fusion tube, tighten at two ends, and make fuse be positioned at movable fusion tube upper middle side, last moving contact is upturned perpendicular to cartridge fuse owing to the tension force of fuse tension, to go up moving contact with insulated tension pole and push in the upper static contact, and become closure state ("on" position) and keep this state.
But existing product technology is coarse, and workmanship is poor, and touch spring elasticity deficiency causes the contact loose contact and to produce spark overheated.
The utility model content
In view of this, the utility model provides a kind of outdoor type fuse, causes superheating phenomenon to avoid the contact loose contact.
For achieving the above object, the utility model provides following technical scheme:
A kind of outdoor type fuse comprises the fixedly support and the movable fusion tube of die cast;
The last moving contact of described movable fusion tube is the spherical contact with a ball type of contact surface;
The upper static contact switch touch panel that cooperates with this moving contact is fixed on the described fixedly support, and described switch touch panel and described moving contact cooperation place are concave spherical surface.
Preferably, in the above-mentioned outdoor type fuse, place, the contact of this fuse is all silver-plated.
From above-mentioned technical scheme as can be seen, switch contact of the present utility model has adopted embedded of sphere to cooperate structure of contact terminal, the sphere moving contact embeds in the fixed contact during its locked state, thereby guaranteed the tight face contact of contact component, thereby avoided the contact loose contact and cause superheating phenomenon.Fixedly support that the utility model provides and movable fusion tube adopt extrusion process, have the density height, the advantage that stretch capability is strong.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The outdoor type fuse structure schematic diagram that Fig. 1 provides for the utility model embodiment;
The outdoor type fuse partial schematic diagram that Fig. 2 provides for the utility model embodiment.
Embodiment
The utility model provides a kind of outdoor type fuse, causes superheating phenomenon to avoid the contact loose contact.
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 1, Fig. 2, the outdoor type fuse structure schematic diagram that Fig. 1 provides for the utility model embodiment, the outdoor type fuse partial schematic diagram that Fig. 2 provides for the utility model embodiment.
Wherein, 1 is fixing support, and 2 is movable fusion tube, and 21 is last moving contact, and 3 is upper static contact switch touch panel, and 4 is the ground wire terminal block.
The outdoor type fuse that the utility model provides comprises fixedly support 1 and the movable fusion tube 2 with insulating effect, and fixedly support 1 and movable fusion tube 2 are that one constitutes by upper and lower switch contact component-assembled, use to be installed on the power circuit.Upper static contact 21 and following fixed contact respectively by bolted in the fixing mouth of pipe top and bottom of support 1, fixedly the middle part of support 1 is fixed with ground wire terminal block 4.
In the present embodiment structure, the last moving contact 21 of its movable fusion tube 2 is the sphere contact, and upper static contact switch touch panel 3 is corresponding with the sphere contact of last moving contact 21, becomes concave spherical surface.The stainless steel that is provided with between upper static contact switch touch panel 3 and fixed mount is clipped in spring and switch touch panel 3 is embedded in locked state closely with last moving contact 21 cooperates, and has avoided the generation of contact loose contact phenomenon from structure.
In addition, the utility model breaks away from old-fashioned founding technology, adopts extrusion process, straight forming, contact point all adopt silver point (contact point is all silver-plated), and standard component all uses stainless steel part according to national standard, prolong its useful life, than the long 10-15 of traditional handicraft.
Operation principle of the present utility model is: fuse is penetrated in the movable fusion tube, tighten at two ends, and make fuse be positioned at movable fusion tube upper middle side, last moving contact is upturned perpendicular to cartridge fuse owing to the tension force of fuse tension, to go up moving contact with insulated tension pole and push in the upper static contact, and become closure state ("on" position) and keep this state.When protected circuit breaks down, when fault current makes fuse failure, form electric arc; movable fusion tube decomposites a large amount of gases under the high arc temperature effect, the pipe internal pressure is sharply increased, and gas is ejection at a high speed outwards; electric arc is formed strong vertical arc blow-out, electric arc is elongated rapidly and extinguish.Meanwhile, because fuse failure, the pulling force of fuse disappears, and retaining mechanism is discharged, and cartridge fuse falls around the lower shaft upset under the effect of the elastic force of upper static contact and deadweight thereof, forms tangible break distance.Circuit is disconnected, excision faulty section circuit or faulty equipment.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (2)
1. an outdoor type fuse is characterized in that, comprises the fixedly support and the movable fusion tube of die cast;
The last moving contact of described movable fusion tube is the sphere contact with a ball type of contact surface;
The upper static contact switch touch panel that cooperates with moving contact on this is fixed on the described fixedly support, and described upper static contact switch touch panel and described upward moving contact cooperation place are concave spherical surface.
2. outdoor type fuse as claimed in claim 1 is characterized in that, the place, contact of this fuse is all silver-plated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201375717U CN201725761U (en) | 2010-03-23 | 2010-03-23 | Outdoor type fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201375717U CN201725761U (en) | 2010-03-23 | 2010-03-23 | Outdoor type fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201725761U true CN201725761U (en) | 2011-01-26 |
Family
ID=43494110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201375717U Expired - Fee Related CN201725761U (en) | 2010-03-23 | 2010-03-23 | Outdoor type fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201725761U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436955A (en) * | 2012-01-12 | 2012-05-02 | 广西和谐电力科技有限公司 | Low-voltage fusing type isolating switch |
| CN105316735A (en) * | 2015-12-15 | 2016-02-10 | 常熟市强盛冲压件有限公司 | Environment-friendly silver-plated contact of fuse |
-
2010
- 2010-03-23 CN CN2010201375717U patent/CN201725761U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436955A (en) * | 2012-01-12 | 2012-05-02 | 广西和谐电力科技有限公司 | Low-voltage fusing type isolating switch |
| CN102436955B (en) * | 2012-01-12 | 2015-05-20 | 广西和谐电力科技有限公司 | Low-pressure fusing disconnecting switch |
| CN105316735A (en) * | 2015-12-15 | 2016-02-10 | 常熟市强盛冲压件有限公司 | Environment-friendly silver-plated contact of fuse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20120323 |