CN201327748Y - Stable type safety fusing resistor - Google Patents
Stable type safety fusing resistor Download PDFInfo
- Publication number
- CN201327748Y CN201327748Y CNU2008201447718U CN200820144771U CN201327748Y CN 201327748 Y CN201327748 Y CN 201327748Y CN U2008201447718 U CNU2008201447718 U CN U2008201447718U CN 200820144771 U CN200820144771 U CN 200820144771U CN 201327748 Y CN201327748 Y CN 201327748Y
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- China
- Prior art keywords
- alloy wire
- electrical porcelain
- stable
- stick body
- typed
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Abstract
The utility model discloses a stable type safety fusing resistor. The resistor consists of an electrical porcelain rod body and cap bodies, wherein, the cap bodies are arranged at the two ends of the electrical porcelain rod body and connected with conducting wires; a coating layer is sprayed at the central part of the electrical porcelain rod body; and an alloy wire is wound on the outer surface of the coating layer at intervals. Once met intense voltage or high current, the central part of the electrical porcelain rod can heat in a concentrated manner, so that the alloy wire is caused to rapidly fuse, and the circuit is cut off. The resistor has a protection function, and mainly applies to the main circuit of electrical appliances such as various chargers, instruments and the like.
Description
Technical field
The utility model relates to a kind of components and parts, especially relates to a kind of stable-typed fusible safe resistor.
Background technology
At present, the fusible wire of producing in the prior art twines fuse-resistor fuselage, be that alloy wire directly is wrapped on the electroceramics rod, winding spacing and coiling length to alloy wire do not have special provision, as long as the resistance that uniform winding reaches regulation is used for insurance fusible resistance in the charger for mobile phone with regard to passable (as shown in Figure 1).The fusible wire that produces like this twines fuse-resistor fuselage, run into also fusible of forceful electric power pressure, electric current, but unstable properties, because alloy wire is wrapped on the whole electroceramics rod uniformly, the meeting heat dispersing is difficult for fusing, the electroceramics rod also can disperse the part heat simultaneously, thereby prolong the fusing time of alloy wire, make resistor quick-break at the appointed time, its harm that brings is the danger that the associated device of burning out is arranged and cause fire.
The utility model content
The purpose of this utility model provides a kind of a kind of stable-typed fusible safe resistor that forceful electric power is pressed, electric current gets final product quick-break that runs into just in order to solve above-mentioned problems of the prior art.
The utility model is achieved by following technical proposals:
A kind of stable-typed fusible safe resistor is made of electrical porcelain stick body and the cap body that is connected with lead that is arranged on the electrical porcelain stick body two ends, and the middle part of described electrical porcelain stick body is coated with dope layer, the equally spaced alloy wire that is wound with of the outer surface of described dope layer.
The spraying length of described dope layer is set to account for 10%～90% of electrical porcelain stick body length.
The length that described alloy wire twines is set to account for 10～90% of dope layer length.
The spacing that described alloy wire twines is set to 0.06～0.15mm.
Described dope layer is made of silicon resin coating.
Another kind of technical scheme of the present utility model is: a kind of stable-typed fusible safe resistor constitutes the equally spaced alloy wire that is wound with in the middle part of described electrical porcelain stick body by electromagnetism barred body and the cap body that is connected with lead that is arranged on the electrical porcelain stick body two ends.
The length that described alloy wire twines is set to account for 20～80% of electrical porcelain stick body length.
The spacing that described alloy wire twines is set to 0.06～0.15mm.
The beneficial effects of the utility model are:
1. the utility model, be to press the mid portion of the electrical porcelain stick body of uppercap body to apply the last layer dope layer equably at two ends, twine alloy wire at cated position then, the heat that its dope layer can reduce alloy wire greatly and be produced is absorbed by the electroceramics rod, and then plays heat insulation effect.
2. alloy wire there be being wrapped in of spacing to scribble on the electroceramics rod of coating, just concentrate and be wrapped in the mid portion that scribbles coating, except above-mentioned minimizing electroceramics rod absorbs the effect of heat, can also prevent the rod loose contact of alloy wire and electroceramics and becoming flexible of producing, the spacing that is provided with between the line and line when twining is arranged again, can prevent effectively that principal vertical line is connected with collision between the line.Heating can be concentrated in the middle part of electroceramics rod when forceful electric power pressure or heavy current so in a single day occurring, makes alloy wire quick-break cut-off loop, plays a protective role.
3. the utility model reasonable in design is easy to mechanization production, can greatly improve production efficiency.
4. the utility model is mainly used in the main circuit of electrical equipment such as various chargers, instrument, and the dual performance of fuse and resistance is arranged.
Description of drawings
Fig. 1 is a prior art resistor structure schematic diagram.
Fig. 2 is the utility model structural representation.
Fig. 3 is that the utility model does not contain the dope layer structural representation.
Reference numeral: 1 electrical porcelain stick body, 2 leads, 3 cap bodies, 4 dope layers, 5 alloy wires
Embodiment
Below in conjunction with accompanying drawing, the utility model will be further described:
As shown in Figure 2, a kind of stable-typed fusible safe resistor of the utility model, by electrical porcelain stick body 1 be arranged on electrical porcelain stick body 1 two ends, the cap body 3 that is connected with lead 2 constitutes, in the composition of described electroceramics rod 1, the content of aluminium oxide is below 75%, and its main specifications has 2*7,2*8,2.5*8,3.0*8,3.0*10,3.5*10 etc.The utility model is coated with dope layer 4 at the middle part of described electrical porcelain stick body 1, described dope layer 4 is made of the silicones thermal insulation coatings, the silicon resin coating that for example adopts Qingdao Da Zhou electronics and this society of Korea S thereof to produce, the length of described dope layer 4 sprayings is to account for 10%～90% of electrical porcelain stick body length, at the equally spaced alloy wire 5 that is wound with of the outer surface of described dope layer 4, the material of described alloy wire 5 mainly is a manganese, nickel, carbon, formations such as iron, the line footpath of its alloy wire is between 0.05～0.08mm, require when the utility model alloy wire 5 twines to collide between line and the line and be connected, the spacing of its each circle and each circle preferably is set between 0.06～0.15mm, the length that described alloy wire 5 twines can be set to account for 10～90% of dope layer length, certain distance all can be reserved in the two ends, the left and right sides that are dope layer 4, thereby guarantee that alloy wire 5 is entangled in the active component of coating 4, to guarantee the stable of resistance performance.
As shown in Figure 3, the utility model is at the middle part of electrical porcelain stick body 1, also can not apply dope layer 4, and directly with alloy wire 5 equally spaced windings, the spacing of its each circle and each circle remains 0.06～0.15mm scope for best during winding, and the length that described alloy wire twines is to account for 20～80% of electrical porcelain stick body effective length to be the best.
Claims (8)
1. stable-typed fusible safe resistor, constitute by electrical porcelain stick body and the cap body that is connected with lead that is arranged on the electrical porcelain stick body two ends, it is characterized in that the middle part of described electrical porcelain stick body is coated with dope layer, the equally spaced alloy wire that is wound with of the outer surface of described dope layer.
2. stable-typed fusible safe resistor according to claim 1 is characterized in that, the spraying length of described dope layer is set to account for 10%～90% of electrical porcelain stick body length.
3. stable-typed fusible safe resistor according to claim 1 is characterized in that, the length that described alloy wire twines is set to account for 10～90% of dope layer length.
4. stable-typed fusible safe resistor according to claim 3 is characterized in that, the spacing that described alloy wire twines is set to 0.06mm～0.15mm.
5. stable-typed fusible safe resistor according to claim 1 is characterized in that described dope layer is made of silicon resin coating.
6. a stable-typed fusible safe resistor is made of electrical porcelain stick body and the cap body that is connected with lead that is arranged on the electrical porcelain stick body two ends, it is characterized in that the equally spaced alloy wire that is wound with in the middle part of described electrical porcelain stick body.
7. stable-typed fusible safe resistor according to claim 6 is characterized in that, the length that described alloy wire twines is set to account for 20～80% of electrical porcelain stick body length.
8. stable-typed fusible safe resistor according to claim 7 is characterized in that, the spacing that described alloy wire twines is set to 0.06～0.15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201447718U CN201327748Y (en) | 2008-12-23 | 2008-12-23 | Stable type safety fusing resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201447718U CN201327748Y (en) | 2008-12-23 | 2008-12-23 | Stable type safety fusing resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201327748Y true CN201327748Y (en) | 2009-10-14 |
Family
ID=41179714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201447718U Expired - Fee Related CN201327748Y (en) | 2008-12-23 | 2008-12-23 | Stable type safety fusing resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201327748Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103440943A (en) * | 2013-09-02 | 2013-12-11 | 张大军 | Wire-wound thermal fuse resistor |
-
2008
- 2008-12-23 CN CNU2008201447718U patent/CN201327748Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103440943A (en) * | 2013-09-02 | 2013-12-11 | 张大军 | Wire-wound thermal fuse resistor |
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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: 20091014 Termination date: 20111223 |