CN202616177U - Drop-out type fuse - Google Patents
Drop-out type fuse Download PDFInfo
- Publication number
- CN202616177U CN202616177U CN 201220259098 CN201220259098U CN202616177U CN 202616177 U CN202616177 U CN 202616177U CN 201220259098 CN201220259098 CN 201220259098 CN 201220259098 U CN201220259098 U CN 201220259098U CN 202616177 U CN202616177 U CN 202616177U
- Authority
- CN
- China
- Prior art keywords
- fuse
- cover plate
- upper cover
- limiting groove
- contact
- 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
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Abstract
The utility model discloses a drop-out type fuse which comprises a base, an upper cover plate, an insulator, a fuse body and a limiting groove, wherein the bottom of the fuse body is hinged to the base, a round-surface upper movable contact is arranged at the top end of the fuse body, an upper fixed contact is arranged right above the upper movable contact, one end of the upper fixed contact is fixedly connected onto the upper cover plate, and the other end of the upper fixed contact is provided with a round limiting groove. A spring is arranged between the limiting groove and the upper cover plate, one end of the limiting groove is fixed on the upper cover plate, and two pins of the limiting groove are arranged on two sides of the fuse body. The drop-out type fuse can switch on fast and accurately, the upper movable contact of the fuse is totally and stably contacted with the limiting groove, safety is increased, and simultaneously working load of maintenance staff is reduced.
Description
Technical field
The utility model relates to high voltage protective electrical equipment, relates in particular to a kind of fuse switch.
Background technology
Fuse switch is on distribution transformer high-pressure side or distribution wire service main road, as branch road, overload protection and the branch of transformer and circuit, close load current.Existing fuse switch stopper slot both feet angle is smaller, runs into the stopper slot both feet during combined floodgate easily, and existing in addition touch spring elasticity is not enough; Cause the contact loose contact and to produce spark overheated; It is very easily loosening that the fuse fixed contact divides, and runs into external force effect, vibration or strong wind weather in case be in operation, just malfunction and falling voluntarily; Be difficult to guarantee power supply reliability, also increased the work of maintenance personnel amount simultaneously.
The utility model content
The utility model technical problem to be solved is will provide a kind of and can quick and precisely close a floodgate, be difficult for the fuse that falls voluntarily.
The utility model for realizing the technical scheme that above-mentioned purpose adopts is: a kind of fuse switch; Comprise base, upper cover plate, insulator, fuse, stopper slot; Fuse bottom connects with base hinge, is arranged to moving contact on the fuse top, and upper static contact is arranged on directly over the moving contact and an end is fixedly connected on upper cover plate one end circular location notch is set; One end of stopper slot is fixed on upper cover plate, and described stopper slot both feet are in the fuse both sides.
Described upward moving contact is the disc contact
Between described circular location notch and upper cover plate, spring is set.
Compared with prior art, the utility model fuse switch can close a floodgate rapidly and accurately, and moving contact has reduced the unexpected possibility of falling voluntarily on the fuse under the effect of location notch, has reduced the work of maintenance personnel amount simultaneously.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated:
As shown in Figure 1; A kind of fuse switch comprises base 2, upper cover plate 1, insulator 3, fuse 4, stopper slot 9, adopts hinge to connect between the bottom of fuse 4 and the base 2, and the top of fuse 4 is provided with moving contact 6 on the disc; Directly over last moving contact 6, upper static contact 10 is set; Upper static contact 10 1 ends are fixedly connected on upper cover plate 1, one end circular location notch 7 are set, and between circular location notch 7 and upper cover plate 1, spring 8 are set; One end of stopper slot 9 is fixed on upper cover plate 1, and described stopper slot 1 both feet are in fuse 4 both sides.
When needs close a floodgate; Annulus 5 with masthead is lived on the fuse 4 is enforced, and the last moving contact 6 on fuse 4 tops just in time withstands in the circular location notch 7, under the effect of spring 8; Fuse 4 is stuck the phenomenon of loosening loose contact can not occur, is difficult for producing spark and electric arc; When living annulus 5 on the fuse 4 with masthead when enforcing fuse 4 and overexerting, under the effect of stopper slot 9, fuse 4 can not move on yet; The utility model has increased fail safe, has also reduced the work of maintenance personnel amount simultaneously.
Claims (3)
1. a fuse switch comprises base, upper cover plate, insulator, fuse, stopper slot, it is characterized in that: the fuse bottom connects with base hinge; The fuse top is provided with moving contact; Directly over last moving contact, upper static contact is set, upper static contact one end is fixedly connected on the upper cover plate, and an end is provided with circular location notch; One end of stopper slot is fixed on the upper cover plate, and the both feet of stopper slot are in the fuse both sides.
2. fuse switch according to claim 1 is characterized in that: described upward moving contact is the disc contact.
3. fuse switch according to claim 1 is characterized in that: between described circular location notch and the upper cover plate spring is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220259098 CN202616177U (en) | 2012-06-04 | 2012-06-04 | Drop-out type fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220259098 CN202616177U (en) | 2012-06-04 | 2012-06-04 | Drop-out type fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202616177U true CN202616177U (en) | 2012-12-19 |
Family
ID=47349850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220259098 Expired - Fee Related CN202616177U (en) | 2012-06-04 | 2012-06-04 | Drop-out type fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202616177U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106611687A (en) * | 2015-10-26 | 2017-05-03 | 辽宁华隆电力科技股份有限公司 | High-voltage drop-out fuse |
-
2012
- 2012-06-04 CN CN 201220259098 patent/CN202616177U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106611687A (en) * | 2015-10-26 | 2017-05-03 | 辽宁华隆电力科技股份有限公司 | High-voltage drop-out 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: 20121219 Termination date: 20130604 |