CN201638765U - Rain cover for high-voltage fuse - Google Patents
Rain cover for high-voltage fuse Download PDFInfo
- Publication number
- CN201638765U CN201638765U CN2009203518483U CN200920351848U CN201638765U CN 201638765 U CN201638765 U CN 201638765U CN 2009203518483 U CN2009203518483 U CN 2009203518483U CN 200920351848 U CN200920351848 U CN 200920351848U CN 201638765 U CN201638765 U CN 201638765U
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- China
- Prior art keywords
- rain cover
- main part
- described main
- tension fuse
- support portion
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a rain cover for a high-voltage fuse. The rain cover comprises a main body part. Both side edges of the main body part in the transverse direction are bent downwards so that the basic shape of the cross section of the rain cover is a C shape of which an opening is downward. When dropping on the rain cover, rain can rapidly outflow along the main body part 11 of the rain cover 1 from one end to the other end along both two side edges 16 in time.
Description
Technical field
The utility model belongs to the fuse technical field, is specifically related to a kind of rain cover that is used for high-tension fuse.
Background technology
Fuse is a kind of protection equipment that the protection electric equipment was avoided the short circuit infringement.Its operation principle is when line short or overload, melt in the fuse fusing carrier is dissolved formation electric arc, 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, in early days based on imitative Soviet Union product, 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 substantially.Because the short circuit interruption ability of fuse improves constantly and good and economic, now accepted and be extensive use of by vast power consumer, nearly 2,000,000 of annual demand.
Fuse switch is one of the most frequently used electrical device of distribution system, also is the power product of distribution system use amount maximum.But because its unit value is lower, structure is simple relatively, all is some small-sized manufacturing firm processings basically in China, and product exists shortcomings such as break performance instability, through-current capability is low, the life-span is short, and is not solved well recent decades.
At present, cartridge fuse is soaked by rainwater easily, the distortion of getting rusty gradually, and then block the fuse problem, and can cause the decline of arc extinction performance.
The utility model content
The purpose of this utility model provides a kind of rain cover that is used for high-tension fuse with rainproof preferably scale erosion effect.
The technical scheme that realizes the utility model purpose is: a kind of rain cover that is used for high-tension fuse, and described rain cover comprises main part; It is characterized in that: the dual-side of described main part horizontal direction is bent downwardly, and makes that the basic configuration of cross section of described rain cover is a C shape that Open Side Down.
The lower surface of described rain cover forms a draw-in groove by impact style around described fixed installation hole.
Described main part one side and the support portion vertical with described main part; End near its support portion of described main part is provided with the fixed installation hole, and the bottom of the other end is provided with the positioning boss of downward protrusion.
Described main part tilts to another side gradually from a side.
Described support portion is provided with the support and connection hole.
The utlity model has positive effect: in (1) the utility model, the basic configuration of the cross section of described rain cover is a C shape that Open Side Down, rainwater is on the main part 11 of falling this shape the time, will be along the main part 11 of described rain cover 1, from one end to the other side and along in time flowing out fast along dual-side 16.(2) in the utility model, the bottom of described main part one end is provided with the positioning boss of downward protrusion, and this positioning boss can be used for locating the back-moving spring that is used to upper contact head that reseting elasticity is provided, and avoids it to come off from fuse.
Description of drawings
Fig. 1 is a kind of perspective view of the present utility model;
The perspective view that Fig. 2 is a rain cover shown in Figure 1 when another angle is observed;
Fig. 3 is a kind of end view of rain cover shown in Figure 1;
The end view that Fig. 4 is a rain cover shown in Figure 1 when another angle is observed;
Fig. 5 is a kind of application exemplary plot of rain cover shown in Figure 1.
Be labeled as shown in the accompanying drawing: rain cover 1, main part 11, support portion 12, fixed installation hole 13, positioning boss 14, draw-in groove 15, side 16, support and connection hole 17, upper contact head 2, back-moving spring 3, input terminal 4, insulation column 5, last fixed terminal 51.
Embodiment
(embodiment 1)
Fig. 1 to Fig. 5 has shown a kind of embodiment of the present utility model, and wherein Fig. 1 is a kind of perspective view of the present utility model; The perspective view that Fig. 2 is a rain cover shown in Figure 1 when another angle is observed; Fig. 3 is a kind of end view of rain cover shown in Figure 1; The end view that Fig. 4 is a rain cover shown in Figure 1 when another angle is observed; Fig. 5 is a kind of application exemplary plot of rain cover shown in Figure 1.
Present embodiment is a kind of rain cover that is used for high-tension fuse, sees Fig. 1 to Fig. 4, and described rain cover 1 comprises main part 11; Described main part 11 1 sides and the support portion 12 vertical with described main part 11; End near its support portion 12 of described main part 11 is provided with fixed installation hole 13, and the bottom of the other end is provided with positioning boss 14.
The lower surface of described rain cover 1 forms a draw-in groove 15 by impact style around described fixed installation hole 13.
Described main part 11 tilts to another side gradually from a side.The dual-side 16 of described rain cover 1 horizontal direction is bent downwardly, and makes that the basic configuration of cross section of described rain cover 1 is a C shape that Open Side Down.Rainwater is on the main part 11 of falling this shape the time, will be along the main part 11 of described rain cover 1, and from one end to the other side and along in time flowing out fast along dual-side 16.
Fig. 5 has shown a kind of application mode of present embodiment, the main part 11 of described rain cover 1 be arranged on upper contact head 2 directly over, be fixed with input terminal 4 on the support portion 12 of described rain cover, be used to described upper contact head 2 to provide the back-moving spring 3 of reseting elasticity to be arranged between rain cover 1 and the upper contact head 2, the one end is enclosed within on the positioning boss 14 of described rain cover 1, and the other end is enclosed within on the positioning area of upper contact head 2.
Described rain cover 1 self by passing fixed installation hole 13 bolt assembly and the last fixed terminal 51 of insulation column 5 be fixed together, described going up on the fixed terminal 51 has a positioning boss, just in time match with the shape of the draw-in groove 15 of rain cover 1, this structure can guarantee that loosening phenomenon can not take place described rain cover 1 in long-term the use.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that connotation of the present utility model extends out and still belong to protection range of the present utility model.
Claims (5)
1. rain cover that is used for high-tension fuse, described rain cover (1) comprises main part (11); It is characterized in that: the dual-side (16) of described main part (11) horizontal direction is bent downwardly, and makes that the basic configuration of cross section of described rain cover (1) is a C shape that Open Side Down.
2. the rain cover that is used for high-tension fuse according to claim 1 is characterized in that: described main part (11) one sides and the support portion (12) vertical with described main part (11); End near its support portion (12) of described main part (11) is provided with fixed installation hole (13), and the bottom of the other end is provided with the positioning boss of downward protrusion (14).
3. the rain cover that is used for high-tension fuse according to claim 2 is characterized in that: the lower surface of described rain cover (1) forms a draw-in groove (15) by impact style around described fixed installation hole (13).
4. the rain cover that is used for high-tension fuse according to claim 1 is characterized in that: described main part (11) tilts to another side gradually from a side.
5. the rain cover that is used for high-tension fuse according to claim 2 is characterized in that: described support portion (12) are provided with support and connection hole (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203518483U CN201638765U (en) | 2009-12-24 | 2009-12-24 | Rain cover for high-voltage fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203518483U CN201638765U (en) | 2009-12-24 | 2009-12-24 | Rain cover for high-voltage fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201638765U true CN201638765U (en) | 2010-11-17 |
Family
ID=43083270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203518483U Expired - Fee Related CN201638765U (en) | 2009-12-24 | 2009-12-24 | Rain cover for high-voltage fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201638765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321365A (en) * | 2015-06-17 | 2017-01-11 | 上海艾港风电科技发展有限公司 | Blade rainproof cover positioning device |
-
2009
- 2009-12-24 CN CN2009203518483U patent/CN201638765U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321365A (en) * | 2015-06-17 | 2017-01-11 | 上海艾港风电科技发展有限公司 | Blade rainproof cover positioning device |
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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: 20101117 Termination date: 20101224 |