CN203553084U - Drop-type fuse - Google Patents
Drop-type fuse Download PDFInfo
- Publication number
- CN203553084U CN203553084U CN201320754991.3U CN201320754991U CN203553084U CN 203553084 U CN203553084 U CN 203553084U CN 201320754991 U CN201320754991 U CN 201320754991U CN 203553084 U CN203553084 U CN 203553084U
- Authority
- CN
- China
- Prior art keywords
- lower contact
- syndeton
- fusion tube
- fuse switch
- mortar
- 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-type fuse. The drop-type fuse comprises an insulator, an upper connecting structure, a fusing tube and a lower connecting structure, wherein the upper connecting structure and the lower connecting structure are respectively fixed at two ends of the insulator, the upper connecting structure is in crimping connection with one end of the fusing tube, the lower connecting structure is sleeved on the other end of the fusing tube, and the lower connecting structure comprises a lower wiring terminal, a lower contact conductive sheet, a lower contact bent plate, a steel pin, a lug joint, a lug shaft, a U-shaped spring and a lower bushing; the lower contact conductive sheet and the lower wiring terminal are connected with one end of the lower contact bent plate; the other end of the lower contact bent plate is connected with the end-portion steel pin; the lug joint and the lower contact conductive sheet are riveted with the U-shaped spring through a rivet; the lower bushing is connected with a lower portion of the lug joint through the lug shaft; and the fusing tube is sheathed with the lower bushing. According to the drop-type fuse of the utility model, the U-shaped spring is adopted, a binding force at a contact surface can be improved; and the magnitude of a crimping connection force will not be affected by temperature, and therefore, the operational reliability of the product can be improved.
Description
Technical field
The utility model relates to field of electrical equipment, particularly relates to a kind of fuse switch.
Background technology
Some defects of fuse ubiquity of using at present, electric conductivity is unstable, and negotiability is low, and contact point easily generates heat, and spring leaf is tired, and the life-span is short, product overall operation poor reliability.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of fuse switch, and its fusion tube mechanical strength is high, uvioresistant, Acceptable life are long; Its current-carrying part adopts whole sheffield plate to make, and middle without cut-off point, conductive capability is good; Adopt U-shaped spring, improved the adhesion of contact-making surface, and the size of crimp force can not be subject to the impact of temperature, improve product reliability of operation.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of fuse switch is provided, comprise insulator, upper syndeton, fusion tube and lower syndeton, described upper syndeton and lower syndeton are separately fixed at the two ends of insulator, described upper syndeton is crimped on fusion tube one end, described lower syndeton is socketed in the other end of fusion tube, described lower syndeton comprises lower connecting terminal, lower contact conducting strip, lower contact bent plate, steel pin, ear mortar, gudgeon, U spring and lower pipe box, described lower contact conducting strip is connected with one end of lower contact bent plate with lower connecting terminal, the other end of described lower contact bent plate connects end steel pin, together with described ear mortar passes through rivet with lower contact conducting strip with U spring, described lower pipe box is connected by the bottom, bottom of gudgeon and ear mortar, sheathed described fusion tube in described lower pipe box.
Further, described U spring is U-shaped spring,
Further, described gudgeon surface is provided with silver coating.
Further, described ear mortar is cast copper ear mortar.
Further, described lower contact conducting strip is whole sheffield plate.
Further, described fusion tube is high-strength epoxy fiberglass pipe.
Further, described fusion tube surface scribbles the outdoor paint of antiultraviolet.
The utility model adopts the fusion tube of high-strength epoxy fiberglass pipe, and its beginning capacity is large, mechanical strength is high, uvioresistant, Acceptable life are long; Its current-carrying part adopts whole sheffield plate to make, and middle without cut-off point, conductive capability is good, and the reliability of product is high; Adopt U-shaped spring, improved the adhesion of contact-making surface, and the size of crimp force can not be subject to the impact of temperature, improve product reliability of operation, fundamentally solve the problem that fuse switch burns because of loose contact heating.
Accompanying drawing explanation
Fig. 1 is the structural representation of the better embodiment of the utility model fuse switch.
Embodiment
Below in conjunction with drawings and embodiments, the utility model is elaborated.
Please refer to shown in Fig. 1, the better embodiment of the utility model fuse switch comprises: insulator 1, upper syndeton 2, fusion tube 3 and lower syndeton 4.
Described upper syndeton 2 and lower syndeton 4 are separately fixed at the two ends of insulator 1, and described upper syndeton 2 is crimped on fusion tube 3 one end, and described lower syndeton 4 is socketed in the other end of fusion tube 3.
Described lower syndeton 4 comprises lower connecting terminal 40, lower contact conducting strip 41, lower contact bent plate 42, steel pin 43, ear mortar 44, gudgeon 45, U spring 46 and lower pipe box 47, described lower contact conducting strip 41 is connected with one end of lower contact bent plate 42 with lower connecting terminal 40, the other end of described lower contact bent plate 42 connects end steel pin 43, described ear mortar 44 is riveted together by rivet 48 with lower contact conducting strip 41 and U spring 46, described lower pipe box 47 is connected with the bottom of ear mortar 46 by gudgeon 45, the interior sheathed described fusion tube 3 of described lower pipe box 47.
Wherein, described U spring 46 is U-shaped spring, has improved the adhesion of contact-making surface, and the size of crimp force can not be subject to the impact of temperature, has improved product reliability of operation.
Wherein, described gudgeon 45 surfaces are provided with silver coating, and described ear mortar 46 is cast copper ear mortar 46.Intensity is high, coordinates tightly and freely flexible movements and fusion tube 3 double swerves while having avoided combined floodgate.
Wherein, described lower contact conducting strip 41 is whole sheffield plate, and middle without cut-off point, conductive capability is good, and the reliability of product is high.。
Wherein, described fusion tube 3 is high-strength epoxy fiberglass pipe, and described fusion tube 3 surfaces scribble the outdoor paint of antiultraviolet.Beginning capacity is large, mechanical strength is high, uvioresistant, Acceptable life are long.
Above specific descriptions of the present utility model are intended to illustrate the implementation of specific embodiments, can not be interpreted as it is to restriction of the present utility model, those skilled in the art are under instruction of the present utility model, can on the embodiment basis of describing in detail, make various variants, within these variants all should be included in design of the present utility model.The utility model scope required for protection only will be stated and be limited by described right.
Claims (7)
1. a fuse switch, comprise insulator, upper syndeton, fusion tube and lower syndeton, described upper syndeton and lower syndeton are separately fixed at the two ends of insulator, described upper syndeton is crimped on fusion tube one end, described lower syndeton is socketed in the other end of fusion tube, it is characterized in that: described lower syndeton comprises lower connecting terminal, lower contact conducting strip, lower contact bent plate, steel pin, ear mortar, gudgeon, U spring and lower pipe box, described lower contact conducting strip is connected with one end of lower contact bent plate with lower connecting terminal, the other end of described lower contact bent plate connects end steel pin, together with described ear mortar passes through rivet with lower contact conducting strip with U spring, described lower pipe box is connected by the bottom, bottom of gudgeon and ear mortar, sheathed described fusion tube in described lower pipe box.
2. fuse switch according to claim 1, is characterized in that: described U spring is U-shaped spring.
3. fuse switch according to claim 1, is characterized in that: described gudgeon surface is provided with silver coating.
4. fuse switch according to claim 1, is characterized in that: described ear mortar is cast copper ear mortar.
5. fuse switch according to claim 1, is characterized in that: described lower contact conducting strip is whole sheffield plate.
6. fuse switch according to claim 1, is characterized in that: described fusion tube is high-strength epoxy fiberglass pipe.
7. fuse switch according to claim 6, is characterized in that: described fusion tube surface scribbles the outdoor paint of antiultraviolet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320754991.3U CN203553084U (en) | 2013-11-25 | 2013-11-25 | Drop-type fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320754991.3U CN203553084U (en) | 2013-11-25 | 2013-11-25 | Drop-type fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203553084U true CN203553084U (en) | 2014-04-16 |
Family
ID=50471165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320754991.3U Expired - Fee Related CN203553084U (en) | 2013-11-25 | 2013-11-25 | Drop-type fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203553084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336554A (en) * | 2015-10-28 | 2016-02-17 | 国家电网公司 | Electrochemical corrosion-resistant fuse |
-
2013
- 2013-11-25 CN CN201320754991.3U patent/CN203553084U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336554A (en) * | 2015-10-28 | 2016-02-17 | 国家电网公司 | Electrochemical corrosion-resistant 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: 20140416 Termination date: 20141125 |
|
| EXPY | Termination of patent right or utility model |