CN202534610U - Improved drop-out fuse - Google Patents
Improved drop-out fuse Download PDFInfo
- Publication number
- CN202534610U CN202534610U CN2012201726604U CN201220172660U CN202534610U CN 202534610 U CN202534610 U CN 202534610U CN 2012201726604 U CN2012201726604 U CN 2012201726604U CN 201220172660 U CN201220172660 U CN 201220172660U CN 202534610 U CN202534610 U CN 202534610U
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- CN
- China
- Prior art keywords
- wiring board
- fuse
- upper wiring
- plate
- limit seat
- 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 an improved drop-out fuse which comprises a post insulator, an upper wiring board, an upper wiring terminal and a fuse. The upper end of the fuse is provided with an upper limiting base and a limiting member. The upper wiring board comprises an upper base plate and a wire-in board. The bottom wall of one side end, which is near the upper limiting base of the fuse, of the upper base plate is fixedly provided with an elastic support plate. One side end near the upper limiting base of the fuse of the elastic support plate is provided with a support portion bending downward. The support portion is fixedly provided with a Z-shaped positioning supporting plate. The upper wiring board is further provided with a rain-proof cover. Two elastic clamping plates which form a clamping groove are disposed in the rain-proof cover. The middle portion of a limiting member is rotatably connected with the upper limiting base. One end far away from the upper wiring board of the limiting member is provided with a press connection portion. The upper portion of the other end near the upper wiring board of the limiting member is positioned in the clamping groove, and the lower portion presses against the Z-shaped positioning supporting plate. The improved drop-out fuse has a relatively reasonable and compact structure, few fault sources, and relatively stable and reliable working performance.
Description
Technical field
The invention belongs to the fuse technical field, be specifically related to a kind of modified model fuse switch.
Background technology
Fuse is a kind of protection equipment that the protection electric equipment was avoided the short circuit infringement.Its operation principle is that the melt in the fuse fusing carrier is dissolved formation electric arc when line short or overload, and at the drop-down long arc of the effect of elastic body; High arc temperature makes the inner aerogenesis medium of fusing carrier resolve into gas simultaneously; In the fusing carrier pipe, set up very high pressure, free metal gas bleed pipe is made arc extinction outward, thereby cut-off short circuit current; Fusing carrier falls under the effect of deadweight simultaneously, forms a visible isolation fracture.The history in existing more than 50 year of the development of China's fuse switch; Be main with imitative Soviet Union product in early days, the mid-1970s has improved many products from grinding, because of product material and design level are limit; Manufacture level improves little; The later stage eighties increases along with introducing with exchange of technology, and product has had tremendous development, has possessed world standard basically.Because the short circuit interruption ability of fuse improves constantly and good and economic, accepted by vast power consumer at present and be widely used nearly 2,000,000 of the demand in every year.
Fuse switch is one of the most frequently used electrical device of distribution system, also is the maximum power product of distribution system use amount.It is more that but present fuse all exists parts, causes the fault point more, breaks down easily; And product exists shortcomings such as break performance instability, through-current capability is low, the life-span is short, is needing improvements badly so its structure remains.
Summary of the invention
The purpose of the utility model provides the modified model fuse switch that a kind of structure is comparatively simplified, the source of trouble is less, service behaviour is comparatively reliable and stable.
The technical scheme that realizes the utility model purpose is: a kind of modified model fuse switch, comprise post insulator, be arranged on the post insulator upper end upper wiring board, be arranged on upper connecting terminal on the upper wiring board, be arranged on the post insulator lower end following terminal block, be arranged on down lower connecting terminal on the terminal block, be arranged on down fusing carrier, fuse on the terminal block; Said fusing carrier is provided with suspension groove; The upper end of said fuse is provided with upper limit seat and locating part; Said upper wiring board comprise the straight upper substrate that is fixed on post insulator upper end and from upper substrate away from the protruding vertically upward inlet wire plate that is used to install binding post of a side of fuse upper limit seat; Be fixed with elastically supported plate on the diapire of said upper substrate near a side of fuse upper limit seat; This elastically supported plate is provided with the support of downward bending near a side of fuse upper limit seat, and riveted and fixed has the location supporting plate of zigzag on the said support; Also be provided with rain cover on the said upper wiring board, be provided with two Elastic clamping plates that form a clip slot in the said rain cover; The middle part of said locating part and upper limit seat are rotationally connected; Said locating part is provided with the pressure contact portion that is used for crimping upper limit seat away from an end of upper wiring board; Said locating part is arranged in said clip slot near the top of an end of upper wiring board, and the bottom is pressed on the location supporting plate of said zigzag.
In the such scheme, also be provided with on the said upper wiring board one be used to provide elastic force torsion spring, an end of this torsion spring is against on the upper wiring board upper wall, the other end is against on the rain cover top.
In the such scheme, said torsion spring and rain cover are arranged on the upper wiring board through same bearing pin.
In the such scheme, said Elastic clamping plate and locating part all are arranged on the side of upper wiring board away from its inlet wire portion.
The utility model structure is comparatively rationally compact, and the source of trouble is less, service behaviour is comparatively reliable and stable.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Be labeled as shown in the accompanying drawing: post insulator 1, upper wiring board 2, upper substrate 21, inlet wire plate 22, upper connecting terminal 3, following terminal block 4, infrabasal plate 41; Supporting bracket 42, outlet board 43, lower connecting terminal 5, fusing carrier 6, suspension groove 61, fuse 7, lower limit seat 71; Hangers 72, positioning pressuring plate 73, suspended axle 74, upper limit seat 75, locating part 76, pressure contact portion 761; Top 762, bottom 763, elastic plate 81, zigzag keeper 82, support plate 91, support 911; Location supporting plate 92, rain cover 93, clip slot 94, Elastic clamping plate 95, torsion spring 96, bearing pin 97.
Embodiment
(embodiment 1)
Fig. 1 is a kind of structural representation of the utility model, has shown first kind of embodiment of the utility model.
Present embodiment is a kind of modified model fuse switch, comprise post insulator 1, be arranged on post insulator 1 upper end upper wiring board 2, be arranged on upper connecting terminal 3 on the upper wiring board 2, be arranged on post insulator 1 lower end following terminal block 4, be arranged on down lower connecting terminal 5 on the terminal block 4, be arranged on down fusing carrier 6, fuse 7 on the terminal block 4; Said fusing carrier 6 is provided with suspension groove 61; Said down terminal block 4 comprise the straight infrabasal plate 41 that is used for fixing in post insulator 1 lower end, from infrabasal plate 41 form the supporting bracket 42 of V-arrangement near the reverse bending downwards of a side of suspension groove 61 and with infrabasal plate 41 clampings, from the outlet board 43 that be used to install lower connecting terminal 5 of infrabasal plate 41 away from the side bending vertically downward of suspension groove 61; Be fixed with straight elastic plate 81 on the diapire of said supporting bracket 42, said elastic plate 81 has zigzag keeper 82 near a side riveted and fixed of suspension groove 61; The lower end of said fuse 7 is provided with lower limit seat 71, hangers 72 and positioning pressuring plate 73; Said lower limit seat 71 is fixed on fuse 7 lower ends; One end of said lower limit seat 71 and the middle part of hangers 72 are rotationally connected; The bottom of said hangers 72 is provided with the suspended axle 74 that can in fusing carrier 6 suspension grooves 61, rotate; Said positioning pressuring plate 73 is fixed on the top of hangers 72, and is pressed on the zigzag keeper 82.
In the present embodiment, said hangers 72 is processed with positioning pressuring plate 73 one cast moldings.
In the present embodiment, the upper end of said fuse 7 is provided with upper limit seat 75 and locating part 76; Said upper wiring board 2 comprise the straight upper substrate 21 that is fixed on post insulator 1 upper end and from upper substrate 21 away from the protruding vertically upward inlet wire plate 22 that is used to install binding post 3 of a side of fuse 7 upper limit seats 75; Be fixed with elastically supported plate 91 on the diapire of said upper substrate 21 near a side of fuse 7 upper limit seats 75; This elastically supported plate 91 is provided with the support 911 of downward bending near a side of fuse 7 upper limit seats 75, and riveted and fixed has the location supporting plate 92 of zigzag on the said support 911; Also be provided with rain cover 93 on the said upper wiring board 2, be provided with two Elastic clamping plates 95 that form a clip slot 94 in the said rain cover 93; The middle part of said locating part 76 and upper limit seat 75 are rotationally connected; Said locating part 76 is provided with the pressure contact portion 761 that is used for crimping upper limit seat 75 away from an end of upper wiring board 2; Said locating part 76 is arranged in said clip slot 94 near the top 762 of an end of upper wiring board 2, and bottom 763 is pressed on the location supporting plate 92 of said zigzag.
Also be provided with on the said upper wiring board 2 one be used to provide elastic force torsion spring 96, an end of this torsion spring 96 is against on upper wiring board 2 upper walls, the other end is against on rain cover 93 tops.Said torsion spring 96 is arranged on the upper wiring board 2 through same bearing pin 97 with rain cover 93.
Said Elastic clamping plate 95 all is arranged on the side of upper wiring board 2 away from its inlet wire portion 22 with locating part 76, so that the elastic force of torsion spring 96 can make Elastic clamping plate 95 be pressed on the top 762 of locating part 76 near an end of upper wiring board 2.
The utility model structure is comparatively rationally compact, and the source of trouble is less, service behaviour is comparatively reliable and stable.
Obviously, the foregoing description of the utility model only be for explain clearly that the utility model does for example, and be not to be qualification to the execution mode of the utility model.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all execution modes.And conspicuous variation that these connotations that belong to the utility model are extended out or change still belong to the protection range of the utility model.
Claims (4)
1. modified model fuse switch, comprise post insulator (1), be arranged on post insulator (1) upper end upper wiring board (2), be arranged on upper connecting terminal (3) on the upper wiring board (2), be arranged on post insulator (1) lower end following terminal block (4), be arranged on down lower connecting terminal (5) on the terminal block (4), be arranged on down fusing carrier (6), fuse (7) on the terminal block (4); Said fusing carrier (6) is provided with suspension groove (61);
It is characterized in that: the upper end of said fuse (7) is provided with upper limit seat (75) and locating part (76); Said upper wiring board (2) comprise the straight upper substrate (21) that is fixed on post insulator (1) upper end and from upper substrate (21) away from the protruding vertically upward inlet wire plate (22) that is used to install binding post (3) of a side of fuse (7) upper limit seat (75); Be fixed with elastically supported plate (91) on the diapire of said upper substrate (21) near a side of fuse (7) upper limit seat (75); This elastically supported plate (91) is provided with the support (911) of downward bending near a side of fuse (7) upper limit seat (75), and said support (911) is gone up the location supporting plate (92) that riveted and fixed has zigzag; Also be provided with rain cover (93) on the said upper wiring board (2), be provided with two Elastic clamping plates (95) that form a clip slot (94) in the said rain cover (93); The middle part of said locating part (76) and upper limit seat (75) are rotationally connected; Said locating part (76) is provided with the pressure contact portion (761) that is used for crimping upper limit seat (75) away from an end of upper wiring board (2); Said locating part (76) is arranged in said clip slot (94) near the top (762) of an end of upper wiring board (2), and bottom (763) are pressed on the location supporting plate (92) of said zigzag.
2. modified model fuse switch according to claim 1; It is characterized in that: also be provided with on the said upper wiring board (2) one be used to provide elastic force torsion spring (96); One end of this torsion spring (96) is against on upper wiring board (2) upper wall, and the other end is against on rain cover (93) top.
3. modified model fuse switch according to claim 2 is characterized in that: said torsion spring (96) and rain cover (93) are arranged on the upper wiring board (2) through same bearing pin (97).
4. modified model fuse switch according to claim 3 is characterized in that: said Elastic clamping plate (95) and locating part (76) all are arranged on the side of upper wiring board (2) away from its inlet wire portion (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201726604U CN202534610U (en) | 2012-04-23 | 2012-04-23 | Improved drop-out fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201726604U CN202534610U (en) | 2012-04-23 | 2012-04-23 | Improved drop-out fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202534610U true CN202534610U (en) | 2012-11-14 |
Family
ID=47135773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201726604U Expired - Fee Related CN202534610U (en) | 2012-04-23 | 2012-04-23 | Improved drop-out fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202534610U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105632852A (en) * | 2016-04-05 | 2016-06-01 | 国网山东省电力公司聊城供电公司 | Drop-type fuse |
-
2012
- 2012-04-23 CN CN2012201726604U patent/CN202534610U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105632852A (en) * | 2016-04-05 | 2016-06-01 | 国网山东省电力公司聊城供电公司 | Drop-type fuse |
| CN105632852B (en) * | 2016-04-05 | 2017-06-27 | 国网山东省电力公司聊城供电公司 | Fuse switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhejiang Tanho Electrical Equipment Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhejiang Tanho Electrical Equipment Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20170423 |