CN201069752Y - Fuse - Google Patents
Fuse Download PDFInfo
- Publication number
- CN201069752Y CN201069752Y CNU200720069969XU CN200720069969U CN201069752Y CN 201069752 Y CN201069752 Y CN 201069752Y CN U200720069969X U CNU200720069969X U CN U200720069969XU CN 200720069969 U CN200720069969 U CN 200720069969U CN 201069752 Y CN201069752 Y CN 201069752Y
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- Prior art keywords
- fuse
- retaining washer
- sealing cap
- main body
- internal diameter
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- Expired - Fee Related
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Abstract
The utility model discloses a fuse device, which includes a main body with tubular structure and two open ends; a quartz layer arranged inside the main body; a fuse wire extending to inner part of the main body and having two bending ends passing through the main body; a plurality of seal fixing parts which further includes a fixing washer and a seal cap. The fixing washers are arranged at the two ends of the main body in a butting manner; the seal caps sleeve the two ends of the main body, butting the fixing washer and the fuse wire respectively, and fixedly connecting with the two ends of the main body. The fuse device has the advantages of simple structure, reliable performance, as well as capabilities for being assembled without requirement for overlay welding and for preventing solder overflow and rosin joint and prevent fracture of the two ends of the fuse wire, good contact between the fuse wire and the seal caps, thus ensuring product uniformity, improving the ex-factory qualification rate, and increasing economic benefits.
Description
Technical field
That the utility model relates to is electric, the line protective devices in the electronic equipment, more particularly, relates to a kind of fuse, and this fuse can avoid the fuse two ends to be pressed down.
Background technology
At present, fuse has been widely used in comprising each electron-like, electric fields such as instrument and meter, Industry Control, experimental measurement, all kinds of household electrical appliance, audio-visual equipment and dwelling house power supply unit owing to simple in structure, easy to use, with low cost.At present the fuse of a lot of fuses all adopts the connected mode of built-up welding, overflows and fuse rosin joint phenomenon but scolder takes place easily during built-up welding, has had a strong impact on product appearance quality and performance.See also shown in Figure 1ly, a kind of common midget fuse 10 comprises body 11, fuse 12 and sealing cap 13, and body 11 is a tubular structure, and fuse 12 is located in the body 11, and fuse 12 two ends pass body 11 respectively; Sealing cap 13 is enclosed within body 11 two ends respectively by pressure, and compresses mutually with the two ends of fuse 12; Quartz sand 14 has also been irritated in body 11 inside.Though this fuse 10 can avoid scolder to overflow and fuse rosin joint phenomenon, when assembling, sealing cap 13 breaks fuse 12 two ends easily, perhaps sealing cap 13 and fuse 12 two ends loose contacts, cause fuse 10 to damage or inefficacy, cause product percent of pass lower, reduced economic benefit.
The utility model content
At the above-mentioned fuse two ends that exist in the prior art easily break, sealing cap and fuse loose contact and fuse is fragile or the shortcoming that lost efficacy, the purpose of this utility model provides a kind of fuse, this fuse is simple and convenient, and is safe and reliable, can avoid the fuse two ends to be pressed down.
For achieving the above object, the utility model adopts following technical scheme:
A kind of fuse comprises:
Body, tubular structure, both ends open, inside is provided with quartz sand layer;
Fuse stretches into body interior, and two ends pass body and crooked respectively;
The sealing and fixing parts further comprise retaining washer and sealing cap, and retaining washer is arranged on the body two ends, and offset with the body two ends; Sealing cap is enclosed within the body two ends, offsets with retaining washer, fuse respectively, and is connected and fixed with the body two ends.
Retaining washer is passed at described fuse two ends respectively, and radially bends along retaining washer one end, and the curved end of fuse contacts with retaining washer one end surfaces.
Described retaining washer is designed to two parts, and a part is a circular ring type, and the external diameter of annulus is greater than the internal diameter of body, and the internal diameter of annulus is less than the internal diameter of body, and offsets with body one end; Another part is a tubular type, and an end opening internal diameter equates with internal radius, and is connected with annulus and communicates, and other end opening internal diameter is less than or equal to internal radius, and stretches in body one end.
Described sealing cap one end opening, other end sealing, inside is provided with cavity, openend internal diameter and this body diameter are complementary, be enclosed within on body one end and with the body sealing and fixing, also be provided with projection on the sealed end inwall of sealing cap, projection stretches in the retaining washer, offsets with the retaining washer surface and clamps the curved end of fuse.
The material of described retaining washer and sealing cap is a copper.
In technique scheme, fuse of the present utility model comprises: body, and tubular structure, both ends open, inside is provided with quartz sand layer; Fuse stretches into body interior, and two ends pass body and crooked respectively; The sealing and fixing parts further comprise retaining washer and sealing cap, and retaining washer is arranged on the body two ends, and offset with the body two ends; Sealing cap is enclosed within the body two ends, offsets with retaining washer, fuse respectively, and is connected and fixed with the body two ends.This fuse structure is simple, dependable performance, need not built-up welding in assembling process connects, can avoid scolder to overflow and fuse rosin joint and prevent that the fuse two ends are pressed down easily, fuse is contacted with sealing cap well, but also guaranteed consistency of product, improve ex factory pass rate, thereby increased economic benefit.
Description of drawings
Fig. 1 is the structure cross-sectional schematic of the fuse of prior art;
Fig. 2 is the structure cross-sectional schematic of the fuse of embodiment 1 of the present utility model;
Fig. 3 is the structure cross-sectional schematic of the fuse of embodiment 2 of the present utility model;
Fig. 4 is the assemble flow schematic diagram of fuse of the present utility model.
Embodiment
Further specify the technical solution of the utility model below in conjunction with drawings and Examples.
Embodiment 1
Present embodiment is a kind of fuse of big specification.
See also shown in Figure 2, the diameter and the length of fuse 20 of the present utility model are of a size of 6.3MM * 25.4MM, this fuse 20 comprises body 21, fuse 22 and sealing and fixing parts, body 21 is a tubular structure, both ends open, the employing insulating material is made, the body 21 inner quartz sands 24 that an amount of even thickness is arranged of irritating; Fuse 22 stretches into body 21 inside, and two ends are passed body 21 respectively and passed body 21; The sealing and fixing parts further comprise retaining washer 25 and sealing cap 23, and retaining washer 25 is arranged on body 21 two ends, and offset with body 21 two ends; Sealing cap 23 is enclosed within body 21 two ends, offsets with retaining washer 25, fuse 22 respectively, and is connected and fixed with body 21 two ends.Retaining washer 25 is passed at fuse 22 two ends respectively, and radially bends along retaining washer 25 1 ends, and the curved end 221 of fuse 22 contacts with retaining washer 25 1 end surfaces, and the curved end 221 of fuse 22 does not exceed the circumferential edges of retaining washer 25.Retaining washer 25 is designed to two parts, and a part is a circular ring type, and the external diameter of annulus is greater than the internal diameter of body 21, and the internal diameter of annulus is less than the internal diameter of body 21, and offsets with body 21 1 ends; Another part is a tubular type, and an end opening internal diameter equates with internal radius, and is connected with annulus and communicates, and other end opening internal diameter is less than or equal to internal radius, and stretches in body 21 1 ends, by sealing cap 23 compress and body 21 fixing.Sealing cap 23 1 end openings, other end sealing, inside is provided with cavity, openend internal diameter and body 21 external diameters are complementary, be enclosed within on body 21 1 ends and with body 21 sealing and fixing, also be provided with projection 231 on the sealed end inwall of sealing cap 23, projection 231 structures and retaining washer 25 are complementary, one end stretches in the retaining washer 25, and cooperate with retaining washer 25, by pressure the sealed end inwall of sealing cap 23 and projection 231 are pressed mutually with retaining washer 25 surfaces and inside, and the curved end 221 of the fuse 22 between clamping, sealing cap 23 is contacted well and fuse 22 is not easy to be pressed down with fuse 22.The sealed end outer wall of sealing cap 23 also is provided with sunk part 232, and sunk part 232 is corresponding with projection 231.The material of retaining washer 25 and sealing cap 23 is copper.This fuse 20 in use; run into fault current; fuse 22 will melt rapidly; at this moment will moment produce electric arc; electric arc can be extinguished by 24 coolings of the quartz sand in the body 21 rapidly; the maximum drop-out current of this fuse 20 can reach the route protection requirement of electronics, electric equipment fully up to 6kA.
Embodiment 2
Present embodiment is a kind of fuse of small dimension.
See also shown in Figure 3, the diameter and the length of fuse 30 of the present utility model are of a size of 5MM * 20MM, this fuse 30 comprises body 31, fuse 32 and sealing and fixing parts, body 31 is a tubular structure, both ends open, the employing insulating material is made, the body 31 inner quartz sands 34 that an amount of even thickness is arranged of irritating; Fuse 32 stretches into body 31 inside, and two ends are passed body 31 respectively and passed retaining washer 35; The sealing and fixing parts further comprise retaining washer 35 and sealing cap 33, and retaining washer 35 is arranged on body 31 two ends, and offset with body 31 two ends; Sealing cap 33 is enclosed within body 31 two ends, offsets with retaining washer 35, fuse 32 respectively, and is connected and fixed with body 31 two ends.Retaining washer 35 is passed at fuse 32 two ends respectively, and radially bends along retaining washer 35 1 ends, and the curved end 321 of fuse 32 contacts with retaining washer 35 1 end surfaces, and the curved end 321 of fuse 32 does not exceed the circumferential edges of retaining washer 35.Retaining washer 35 is designed to two parts, and a part is a circular ring type, and the external diameter of annulus is greater than the internal diameter of body 31, and the internal diameter of annulus is less than the internal diameter of body 31, and offsets with body 31 1 ends; Another part is a tubular type, and an end opening internal diameter equates with internal radius, and is connected with annulus and communicates, and other end opening internal diameter is less than or equal to internal radius, and stretches in body 31 1 ends, by sealing cap 33 compress and body 31 fixing.Sealing cap 33 1 end openings, other end sealing, inside is provided with cavity, openend internal diameter and body 31 external diameters are complementary, be enclosed within on body 31 1 ends and with body 31 sealing and fixing, also be provided with projection 331 on the sealed end inwall of sealing cap 33, projection 331 is tapered, one end stretches in the retaining washer 35, and cooperate with retaining washer 35, by pressure the sealed end inwall of sealing cap 33 and projection 331 are pressed mutually with retaining washer 35 surfaces, and the curved end 321 of the fuse 32 between clamping, sealing cap 33 is contacted well and fuse 32 is not easy to be pressed down with fuse 32.The sealed end outer wall of sealing cap 33 also is provided with sunk part 332, and sunk part 332 is corresponding with projection 331.The material of retaining washer 35 and sealing cap 33 is copper.This fuse 30 in use; run into fault current; fuse 32 will melt rapidly; at this moment will moment produce electric arc; electric arc can be extinguished by 34 coolings of the quartz sand in the body 31 rapidly; the maximum drop-out current of this fuse 30 can reach 1.5kA, can reach the route protection requirement of electronics, electric equipment.
See also shown in Figure 4ly, the assembling process of fuse of the present utility model is as follows: the first step is chosen the body of tubular structure earlier, and adopts retaining washer to be arranged on body one end; Second step was stretched into an end of fuse in the body, and passed behind the retaining washer that is arranged on body one end crooked again; The 3rd step was chosen sealing cap and is enclosed within on body one end and body one end sealing and fixing, and working pressure presses and clamps the curved end of fuse with the sealed end inwall of sealing cap mutually with retaining washer one end surfaces, and makes projection and retaining washer on the sealed end inwall of sealing cap to cooperating; The 4th step used the quartz sand of an amount of even thickness to pour in the body; Adopt at last and use the same method, with body other end sealing and fixing.The concrete steps in second step are: the end with fuse stretches in the body earlier, and passes the retaining washer of body one end; To pass the fuse of retaining washer then and pull out one section, and carry out bending along retaining washer one end radial surface; Adopt scissors or pliers to cut off the part that the fuse curved end exceeds the circumferential edges of retaining washer at last.The material of the retaining washer of choosing is copper or high temperature resistant elastomeric material; The material of the sealing cap of choosing is a copper.This assembly method need not be carried out the fuse built-up welding and be connected, and sealing cap and fuse can contact well and fuse is not easy to be pressed down.The fuse of this assembly method assembling in use; run into fault current; fuse will melt rapidly; at this moment will moment produce electric arc; electric arc can be cooled off by intrinsic quartz sand and extinguish rapidly; through the test of many times authentication, the maximum drop-out current of this fuse can reach the route protection requirement of electronics, electric equipment fully, can be applicable in various electronics, the electric equipment circuit.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.
Claims (5)
1. a fuse is characterized in that,
This fuse comprises:
Body, tubular structure, both ends open, inside is provided with quartz sand layer;
Fuse stretches into body interior, and two ends pass body and crooked respectively;
The sealing and fixing parts further comprise retaining washer and sealing cap, and retaining washer is arranged on the body two ends, and offset with the body two ends; Sealing cap is enclosed within the body two ends, offsets with retaining washer, fuse respectively, and is connected and fixed with the body two ends.
2. fuse as claimed in claim 1 is characterized in that:
Retaining washer is passed at described fuse two ends respectively, and radially bends along retaining washer one end, and the curved end of fuse contacts with retaining washer one end surfaces.
3. fuse as claimed in claim 1 is characterized in that:
Described retaining washer is designed to two parts, and a part is a circular ring type, and the external diameter of annulus is greater than the internal diameter of body, and the internal diameter of annulus is less than the internal diameter of body, and offsets with body one end; Another part is a tubular type, and an end opening internal diameter equates with internal radius, and is connected with annulus and communicates, and other end opening internal diameter is less than or equal to internal radius, and stretches in body one end.
4. fuse as claimed in claim 1 is characterized in that:
Described sealing cap one end opening, other end sealing, inside is provided with cavity, openend internal diameter and this body diameter are complementary, be enclosed within on body one end and with the body sealing and fixing, also be provided with projection on the sealed end inwall of sealing cap, projection stretches in the retaining washer, offsets with the retaining washer surface and clamps the curved end of fuse.
5. as each the described fuse in the claim 1,3,4, it is characterized in that:
The material of described retaining washer and sealing cap is a copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720069969XU CN201069752Y (en) | 2007-05-18 | 2007-05-18 | Fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720069969XU CN201069752Y (en) | 2007-05-18 | 2007-05-18 | Fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201069752Y true CN201069752Y (en) | 2008-06-04 |
Family
ID=39491141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720069969XU Expired - Fee Related CN201069752Y (en) | 2007-05-18 | 2007-05-18 | Fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201069752Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101308744B (en) * | 2007-05-18 | 2010-05-19 | 爱迪生电气研发（上海）有限公司 | Fuse and assembly method thereof |
| CN103337430A (en) * | 2013-06-17 | 2013-10-02 | 东莞市博钺电子有限公司 | Surface mounting type fuse with non-solder ends and manufacturing method thereof |
| CN111900061A (en) * | 2019-05-06 | 2020-11-06 | 伊顿智能动力有限公司 | Aluminum alloy miniature tubular fuse |
| CN112309800A (en) * | 2019-07-24 | 2021-02-02 | 功得电子工业股份有限公司 | fuse |
| US12106921B2 (en) | 2019-05-06 | 2024-10-01 | Eaton Intelligent Power Limited | Aluminum alloy miniature cartridge fuses |
-
2007
- 2007-05-18 CN CNU200720069969XU patent/CN201069752Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101308744B (en) * | 2007-05-18 | 2010-05-19 | 爱迪生电气研发（上海）有限公司 | Fuse and assembly method thereof |
| CN103337430A (en) * | 2013-06-17 | 2013-10-02 | 东莞市博钺电子有限公司 | Surface mounting type fuse with non-solder ends and manufacturing method thereof |
| CN111900061A (en) * | 2019-05-06 | 2020-11-06 | 伊顿智能动力有限公司 | Aluminum alloy miniature tubular fuse |
| US12106921B2 (en) | 2019-05-06 | 2024-10-01 | Eaton Intelligent Power Limited | Aluminum alloy miniature cartridge fuses |
| CN111900061B (en) * | 2019-05-06 | 2025-03-25 | 伊顿智能动力有限公司 | Aluminum alloy miniature tube fuse |
| CN112309800A (en) * | 2019-07-24 | 2021-02-02 | 功得电子工业股份有限公司 | 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: 20080604 Termination date: 20100518 |