CN201149844Y - Hollow structure fuse - Google Patents
Hollow structure fuse Download PDFInfo
- Publication number
- CN201149844Y CN201149844Y CNU2007201264943U CN200720126494U CN201149844Y CN 201149844 Y CN201149844 Y CN 201149844Y CN U2007201264943 U CNU2007201264943 U CN U2007201264943U CN 200720126494 U CN200720126494 U CN 200720126494U CN 201149844 Y CN201149844 Y CN 201149844Y
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- Prior art keywords
- fuse
- hole
- hollow
- utility
- copper contact
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Abstract
The utility model relates to the technical field of protection circuits for preventing current overload and short circuit in a circuit, in particular to a hollow-structured fuse. The utility model aims to overcome the problems of slow self-heat dissipation and easy abnormal fusing of the prior art and provides the technical proposal that the hollow-structured fuse comprises a square insulation ceramic column, fuse films, quartz sand, an end face gland, a copper contact and a seal piece; a through hole is arranged in the middle part of the square insulation ceramic column; the fuse films are evenly distributed on the periphery of the through hole; the copper contact is provided with an opening corresponding to the through hole. The fuse of the utility model has the advantages that under the premise of unchanged rated current and voltage values and unchanged length of the insulation tube, the effective cooling area of the fuse can be increased by 45%; even if the fuse is continuously electrified for a long time, the fuse can still keep constant low-temperature work temperature below 70K for a long time to avoid untimely abnormal fusion.
Description
Technical field:
The utility model relates to the overload that prevents electric current in the circuit and the protection technical field of electric appliances of short circuit, is specifically related to a kind of hollow-core construction fuse.
Background technology:
The structure of present traditional fuse is normally: comprise the insulation porcelain knob, the insulation porcelain knob is provided with the mesopore indicating device, be filled with the quartz sand that extinguish arcs is used in the insulation porcelain knob, the centre of quartz sand is installed with fuse link, insulation porcelain knob two is provided with the copper contact that is welded as a whole with fuse link, is provided with adiabatic sealing gasket between end face gland that copper contact and two side are provided with and the insulation porcelain knob.During use, copper contact is connected energising with the external cable bus.Fuse continues energising for a long time when work, can produce a large amount of heat energy, and temperature inside is constantly raise, and temperature can only could spread in the peripherad air after the lining outwards is transmitted to the surface of porcelain tube lentamente by quartz sand.If fuse is installed in the electric box of sealing, the heat of diffusion into the surface can cause the interior air themperature of case sharply to rise, and not only can cause adverse effect to other electrical equipment, also can make fuse self temperature high temperature store, leading improper fusing occurs.
The effective way of radiating effect is being sought to enlarge always by fuse manufacturing firm both at home and abroad, force wind refrigeration or the cooling of water-cooled bus as employing, though heat conduction cooling-down effect is significantly arranged, increased manufacturing cost and use cost, also bring the complexity when changing fuse.Particularly in the sealed electrical gas tank of special environment for use such as subway power car, the narrow and small finite volume in space promptly can not the more impossible water flowing of blowing, can only lean on fuse self quick heat radiating to keep operate as normal.It is slow that therefore existing fuse exists self-radiating, easily produces the problem of improper fusing phenomenon.
Summary of the invention:
The utility model will provide a kind of hollow-core construction fuse, and is slow to overcome the self-radiating that prior art exists, and easily produces the problem of improper fusing phenomenon.
For overcoming the problem that prior art exists, solution of the present utility model is: a kind of hollow-core construction fuse, comprise square insulation porcelain knob, fuse link, quartz sand, end face gland, copper contact and seal, it is characterized in that: the middle part of described square insulation porcelain knob is provided with through hole, fuse link is distributed in the through hole periphery, and copper contact is provided with and the through hole corresponding opening.
Above-mentioned through hole and corresponding opening are square.
Above-mentioned seal is the heat conduction sealing gasket.Can well conduct and disperse heat.
Above-mentioned fuse link has four, the parallel through hole periphery that is distributed in of fuse link.
Compared with prior art, the utility model has the advantages that:
1, can reach the effect that keeps constant low temperature work: the utility model has thoroughly changed the traditional structure of fuse, through hole by inside significantly increases the area of dissipation of its surfaces externally and internally, promote that air flows realizes heat exchange, the two ends also heat loss through conduction fast of copper contact that is added with the heat conduction gasket seal simultaneously, the surface radiating area of two end faces is significantly increased, even thereby when work, continue energising for a long time, also can make the work temperature rise of the following constant low temperature of the fuse 70K of maintenance steady in a long-term, stop leading improper fusing.
2, simple in structure: square insulation porcelain knob of the present utility model can be finished in disposable compacting, and manufacture process and former technology are approaching, and is therefore easy to process.
3, applied widely: the fuse that varying environment is used has the same effectively obvious effect of radiating and cooling, therefore going for outside spacious environment uses, also can be arranged in the seal cavity and use, particular surroundings narrow and small in the space, finite volume that the utility model is particularly suited for is for example used in the sealed electrical gas tank of subway power car.
4, radiating effect is obvious: under the constant prerequisite of fuse rated current and magnitude of voltage and insulated tube body length, its efficiently radiates heat area can increase by 45%.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to view;
Fig. 3 is that the B-B of Fig. 1 is to view.
Description of reference numerals is as follows:
The square insulation porcelain knob of 1-; The 2-fuse link; 3-quartz sand; The 4-copper contact; The 5-through hole; 6-heat conduction sealing gasket; 7-end face gland; The 8-opening.
Embodiment:
Below in conjunction with accompanying drawing the utility model is elaborated.
Referring to Fig. 1～3, a kind of hollow-core construction fuse, be provided with square insulation porcelain knob 1, fuse link 2, quartz sand 3 and copper contact 4 from inside to outside successively, square insulation porcelain knob 1 two is provided with the copper contact 4 that is welded as a whole with fuse link 2, is provided with heat conduction sealing gasket 6 between end face gland 7 that copper contact 4 and two side are provided with and the square insulation porcelain knob 1.The middle part of this square insulation porcelain knob 1 is provided with 5, four fuse links 2 of square through hole and is distributed in through hole 5 peripheries, and is parallel with four limits of through hole 5 respectively, and copper contact 4 is provided with and through hole 5 corresponding opening 8.
When fuse is started working, air is flowed along through hole 5 by the opening on the copper contact 48, the heat that produces when taking away work, the two ends also heat loss through conduction fast of copper contact that is added with the heat conduction gasket seal simultaneously, the fuse temperature rise is remained at below the 70K, effectively reduce self temperature of fuse.
Claims (4)
1, a kind of hollow-core construction fuse, comprise square insulation porcelain knob (1), fuse link (2), quartz sand (3), end face gland (7), copper contact (4) and seal, it is characterized in that: the middle part of described square insulation porcelain knob (1) is provided with through hole (5), fuse link (2) is distributed in through hole (5) periphery, and copper contact (4) is provided with and through hole (5) corresponding opening (8).
2, a kind of hollow-core construction fuse as claimed in claim 1 is characterized in that: described through hole (5) and corresponding opening (8) are for square.
3, a kind of hollow-core construction fuse as claimed in claim 1 or 2 is characterized in that: described seal is heat conduction sealing gasket (6).
4, a kind of hollow-core construction fuse as claimed in claim 3, it is characterized in that: described fuse link (2) has four, parallel through hole (5) periphery that is distributed in of fuse link (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201264943U CN201149844Y (en) | 2007-11-23 | 2007-11-23 | Hollow structure fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201264943U CN201149844Y (en) | 2007-11-23 | 2007-11-23 | Hollow structure fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201149844Y true CN201149844Y (en) | 2008-11-12 |
Family
ID=40117615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201264943U Expired - Fee Related CN201149844Y (en) | 2007-11-23 | 2007-11-23 | Hollow structure fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201149844Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216128A (en) * | 2017-06-30 | 2019-01-15 | 厦门赛尔特电子有限公司 | A kind of high voltage direct current thermal cut-off |
| US11049683B2 (en) | 2017-06-30 | 2021-06-29 | Xiamen Set Electronics Co., Ltd | High-voltage direct-current thermal fuse |
-
2007
- 2007-11-23 CN CNU2007201264943U patent/CN201149844Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216128A (en) * | 2017-06-30 | 2019-01-15 | 厦门赛尔特电子有限公司 | A kind of high voltage direct current thermal cut-off |
| US11049683B2 (en) | 2017-06-30 | 2021-06-29 | Xiamen Set Electronics Co., Ltd | High-voltage direct-current thermal fuse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HE HAO Owner name: HE KEPING Free format text: FORMER OWNER: XI'AN SIELINKS ELECTRIC CO., LTD. Effective date: 20110620 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 710002 ROOM 2602, QILIN YAZHU BUILDING, NO. 8, QINGNIAN LANE 2, XI'AN CITY, SHAANXI PROVINCE TO: 710018 BACK BUILDING, NO. 151, FENGCHENG 6TH ROAD, XI'AN ECONOMIC DEVELOPMENT ZONE, SHAANXI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110620 Address after: 710018 building, No. six, No. 151, Fengcheng, Xi'an, Shaanxi Co-patentee after: He Hao Patentee after: He Keping Address before: Xi'an City, Shaanxi Province youth 710002 lane two building room 2602 No. 8 kylin Yazhu Patentee before: XI'AN XILIAN ELECTRIC APPLIANCE CO., LTD. |
|
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: HE HAO Effective date: 20120517 Owner name: XI'AN SIELINKS ELECTRIC CO., LTD. Free format text: FORMER OWNER: HE KEPING Effective date: 20120517 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 710018 XI'AN, SHAANXI PROVINCE TO: 710021 XI'AN, SHAANXI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120517 Address after: 710021 building, No. six, No. 151, Fengcheng, Xi'an, Shaanxi Patentee after: XI'AN XILIAN ELECTRIC APPLIANCE CO., LTD. Address before: 710018 building, No. six, No. 151, Fengcheng, Xi'an, Shaanxi Co-patentee before: He Hao Patentee before: He Keping |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081112 Termination date: 20161123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |