CN203787235U - Minitype over-temperature protection type wire wrapping fuse resistor - Google Patents
Minitype over-temperature protection type wire wrapping fuse resistor Download PDFInfo
- Publication number
- CN203787235U CN203787235U CN201420025309.1U CN201420025309U CN203787235U CN 203787235 U CN203787235 U CN 203787235U CN 201420025309 U CN201420025309 U CN 201420025309U CN 203787235 U CN203787235 U CN 203787235U
- Authority
- CN
- China
- Prior art keywords
- fer
- resistor
- zinc
- protective tube
- tinned wird
- 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
Links
- 238000010618 wire wrap Methods 0.000 title abstract 2
- 230000001681 protective effect Effects 0.000 claims abstract description 21
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 239000000956 alloy Substances 0.000 claims abstract description 10
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 10
- 229910052571 earthenware Inorganic materials 0.000 claims description 17
- 230000001012 protector Effects 0.000 claims description 14
- 229920006334 epoxy coating Polymers 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 5
- 239000005028 tinplate Substances 0.000 abstract 6
- 239000000919 ceramic Substances 0.000 abstract 4
- 238000000465 moulding Methods 0.000 abstract 3
- 208000025274 Lightning injury Diseases 0.000 abstract 1
- 208000027418 Wounds and injury Diseases 0.000 abstract 1
- 230000009861 stroke prevention Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- ATVJXMYDOSMEPO-UHFFFAOYSA-N 3-prop-2-enoxyprop-1-ene Chemical compound C=CCOCC=C ATVJXMYDOSMEPO-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Landscapes
- Thermistors And Varistors (AREA)
Abstract
The utility model discloses a minitype over-temperature protection type wire wrapping fuse resistor. The resistor comprises a protective tube, a ceramic tube and a unilateral tinplate cap; the protective tube sleeves the ceramic tube; the unilateral tinplate cap is pressed on one end of the ceramic tube; after hollow tinplate cap is pressed on the other end of the ceramic tube, a first molding body is formed; after the outer periphery of the first molding body is uniformly wound by an alloy wire, a second molding body is formed, and is coated by a resin coating; one end of the protective tube is subjected to spot welding with a first tinned copper wire passing through the hollow tinplate cap, and the other end of the protective tube is subjected to spot welding with a second tinned copper wire which passes through the hollow tinplate cap and the resin coating; the unilateral tinplate cap is subjected to spot welding with a third tinned copper wire extending out of the resin coating. According to the utility model, when the temperature of the resistor ascends to the fusing temperature of 221 DEG C, the resistor forms an open circuit, so that the phenomena of shell fusing, shell deformation or fire disaster and the like of charging equipment are prevented, and the resistor also has the advantages of good lightning stroke prevention performance and small volume.
Description
Technical field
The utility model relates to electronic technology field, relates in particular to a kind of miniaturization overheat protector type coiling fuse-resistor.
Background technology
In the charging devices such as charger or power-supply device, the conventional coiling fuse-resistor of industry must could fuse under rated current condition.The line short of charging device or components and parts occur abnormal at present, the appearance of leaking the unusual conditions such as electrolyte, triode short circuit or rectifying tube half failure state as alminium electrolytic condenser causes resistive load excessive, surpass rated operational current, but not surpassing fixing blowout current, this situation is called low current work; Resistor is continuous firing under low current operating state always, and resistance temperature is rising always, finally causes charging device generation fusion crust, burns shell, casing deformation or cause the phenomenons such as fire.In addition, its volume of existing resistor is large, and the space taking in charging device is large, gives operation and uses and bring and very large inconvenience.
Utility model content
For the weak point existing in above-mentioned technology, the utility model provides a kind of simple in structure, miniaturization overheat protector type that volume is little coiling fuse-resistor, and this resistor had both had good anti-lightning performance, had again good fusing performance.
For achieving the above object, the utility model provides a kind of miniaturization overheat protector type coiling fuse-resistor, comprises protective tube, earthenware and monolateral zinc-plated chapeau de fer; Described protective tube is set in earthenware, described monolateral zinc-plated chapeau de fer pressurization is on one end of earthenware, after the hollow zinc-plated chapeau de fer of other end pressurization of described earthenware, form the first formed body, after described the first formed body outer placed uniform winding alloy wire, form the second formed body, and be coated with resinous coat on described the second formed body; On one end of described protective tube, point is welded with the first tinned wird that runs through hollow zinc-plated chapeau de fer, on the other end of described protective tube, point is welded with and runs through successively hollow zinc-plated chapeau de fer and resin-coated the second tinned wird, and on described monolateral zinc-plated chapeau de fer, point is welded with and extends resin-coated the 3rd tinned wird.
Wherein, the starting point of described the first tinned wird is away from hollow zinc-plated chapeau de fer, and close monolateral zinc-plated chapeau de fer; And after the destination node of described the first tinned wird runs through the centre bore of hollow zinc-plated chapeau de fer, point is welded on the outside of this hollow zinc-plated chapeau de fer.
Wherein, described the second tinned wird and the 3rd tinned wird lay respectively on resin-coated both sides and are symmetrical arranged.
Wherein, described resinous coat is epoxy coating or phenolic coating.
Wherein, described resin-coated be shaped as cylindrical.
The beneficial effects of the utility model are: compared with prior art, the miniaturization overheat protector type coiling fuse-resistor that the utility model provides, monolateral zinc-plated chapeau de fer and hollow zinc-plated chapeau de fer are set respectively at the two ends of earthenware, can increase the contact area of chapeau de fer and alloy wire, reduce contact resistance, and the use of monolateral zinc-plated chapeau de fer, has accelerated the reaction time of fusing, and then improve the fusing performance of this resistor; Simultaneously, equal spot welding tinned wird on the two ends of protective tube and monolateral zinc-plated chapeau de fer, make this resistor in the process of energising work, the temperature of resistor surface slowly increases, effectively avoid temperature to increase sharply and cause occurring extremely, and alloy wire is under the effect of tinned wird, when resistor temperature rises to 221 ℃ of fusing-off temperatures, resistor open circuit lost efficacy, thereby avoided charging device generation fusion crust, burning shell, casing deformation or cause the phenomenons such as fire; And adopt directly coated with resins coating on the second formed body to replace shell, and greatly reduced the volume of this resistor, improve the flexibility of operation or the convenience of use.The improvement of this structure, not only can control fusing-off temperature accurately, but also has that manufacturing process is simple, reasonable in design, volume is little and the feature such as anti-lightning performance is good.
Accompanying drawing explanation
Fig. 1 is the structure chart of miniaturization overheat protector type coiling fuse-resistor of the present utility model.
Main element symbol description is as follows:
10, protective tube 11, earthenware
12, monolateral zinc-plated chapeau de fer 13, hollow zinc-plated chapeau de fer
14, alloy wire 15, resinous coat
16, the first tinned wird 17, the second tinned wird
18, the 3rd tinned wird
Embodiment
In order more clearly to explain the utility model, below in conjunction with accompanying drawing, the utility model is further described.
Refer to Fig. 1, miniaturization overheat protector type coiling fuse-resistor of the present utility model, comprises protective tube 10, earthenware 11 and monolateral zinc-plated chapeau de fer 12; Protective tube 10 is set in earthenware 11, monolateral zinc-plated chapeau de fer 12 adds on the one end that is pressed in earthenware 11, rear formation first formed body of the other end hollow zinc-plated chapeau de fer 13 of pressurization of earthenware 11, the outer of the first formed body placed rear formation the second formed body of uniform winding alloy wire 14, and on the second formed body, is coated with resinous coat 15; On one end of protective tube 10, point is welded with the first tinned wird 16 that runs through hollow zinc-plated chapeau de fer 13, on the other end of protective tube 10, point is welded with the second tinned wird 17 that runs through successively hollow zinc-plated chapeau de fer 13 and resinous coat 15, and on monolateral zinc-plated chapeau de fer 12, point is welded with the 3rd tinned wird 18 that extends resinous coat 15.
Situation compared to prior art, the miniaturization overheat protector type coiling fuse-resistor that the utility model provides, monolateral zinc-plated chapeau de fer 12 and hollow zinc-plated chapeau de fer 13 are set respectively at the two ends of earthenware 11, can increase the contact area of chapeau de fer and alloy wire 14, reduce contact resistance, and the use of monolateral zinc-plated chapeau de fer 12, has accelerated the reaction time of fusing, and then improve the fusing performance of this resistor; Simultaneously, equal spot welding tinned wird on the two ends of protective tube 10 and monolateral zinc-plated chapeau de fer 12, make this resistor in the process of energising work, the temperature of resistor surface slowly increases, effectively avoid temperature to increase sharply and cause occurring extremely, and alloy wire 14 is under the effect of tinned wird, when resistor temperature rises to 221 ℃ of fusing-off temperatures, resistor open circuit lost efficacy, thereby avoided charging device generation fusion crust, burning shell, casing deformation or cause the phenomenons such as fire; And adopt directly coated with resins coating 15 on the second formed body to replace shell, and greatly reduced the volume of this resistor, improve the flexibility of operation or the convenience of use.The improvement of this structure, not only can control fusing-off temperature accurately, but also has that manufacturing process is simple, reasonable in design, volume is little and the feature such as anti-lightning performance is good.
In the present embodiment, the starting point of the first tinned wird 16 is away from hollow zinc-plated chapeau de fer 13, and close monolateral zinc-plated chapeau de fer 12; And after the destination node of the first tinned wird 16 runs through the centre bore of hollow zinc-plated chapeau de fer 13, point is welded on the outside of this hollow zinc-plated chapeau de fer 13.Certainly; the utility model is not limited to this design; can also be that 17 of the second tinned wirds are welded in away from hollow zinc-plated chapeau de fer 13; the starting point of the first tinned wird 16 is arranged near hollow zinc-plated chapeau de fer 13; if the change to the first tinned wird 16 and hollow zinc-plated chapeau de fer 13 spot welding positions; as long as each execution mode of of guarantee insurance pipe 10 two ends, all falls in protection range of the present utility model.
In the present embodiment, the second tinned wird 17 and the 3rd tinned wird 18 lay respectively on the both sides of resinous coat 15 and are symmetrical arranged.Certainly; be not limited to and be symmetrical arranged; also the second tinned wird 17 and the 3rd tinned wird 18 can be arranged on the homonymy that is positioned at resinous coat 15; if to the second tinned wird 17 and the 3rd tinned wird 18 in the locational change of resinous coat 15, all fall in protection range of the present utility model.
In the present embodiment, resinous coat 15 is epoxy coating or phenolic coating.Certainly, the material of resinous coat 15 is not limited to above-mentioned two kinds, can also be the resistant thermoplastic resin coating of the other types such as allyl ether resinous coat; Being shaped as of resinous coat 15 is cylindrical, has illustrated that being shaped as of this resistor is cylindrical.Certainly, being not limited to the shape of resinous coat 15, can also be square other shapes such as grade, if the change to the shape of resinous coat 15 all falls in protection range of the present utility model.
The miniaturization overheat protector type coiling fuse-resistor that the utility model provides, its making flow process is as follows: the first step, the first tinned wird 16 and 17 of the second tinned wirds are welded on the two ends of protective tube 10, and the protective tube 10 of spot welding copper wire tin-plating copper cash is packed in earthenware 11; Second step, adds respectively rear first formed body that forms on the two ends that are pressed in earthenware 11 by monolateral zinc-plated chapeau de fer 12 and hollow zinc-plated chapeau de fer 13; The 3rd step, forms the second formed body after alloy wire 14 being wrapped in to the periphery of the first formed body; The 4th step, spot welding the 3rd tinned wird 18 on monolateral zinc-plated chapeau de fer 12; The 5th step, coated with resins coating 15 on the second formed body; The 6th step, completes manufacture after coating colour circle or lettering on resinous coat 15.Adopt the produced resistor of this structure of which, its resistance is 0.1-200 ohm, and power is 1-2W, and the temperature of this resistor surpasses 221 degree, and just fusing was lost efficacy automatically.
Disclosed is above only several specific embodiment of the present utility model, but the utility model is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection range of the present utility model.
Claims (5)
1. a miniaturization overheat protector type coiling fuse-resistor, is characterized in that, comprises protective tube, earthenware and monolateral zinc-plated chapeau de fer; Described protective tube is set in earthenware, described monolateral zinc-plated chapeau de fer pressurization is on one end of earthenware, after the hollow zinc-plated chapeau de fer of other end pressurization of described earthenware, form the first formed body, after described the first formed body outer placed uniform winding alloy wire, form the second formed body, and be coated with resinous coat on described the second formed body; On one end of described protective tube, point is welded with the first tinned wird that runs through hollow zinc-plated chapeau de fer, on the other end of described protective tube, point is welded with and runs through successively hollow zinc-plated chapeau de fer and resin-coated the second tinned wird, and on described monolateral zinc-plated chapeau de fer, point is welded with and extends resin-coated the 3rd tinned wird.
2. miniaturization overheat protector type coiling fuse-resistor according to claim 1, is characterized in that, the starting point of described the first tinned wird is away from hollow zinc-plated chapeau de fer, and close monolateral zinc-plated chapeau de fer; And after the destination node of described the first tinned wird runs through the centre bore of hollow zinc-plated chapeau de fer, point is welded on the outside of this hollow zinc-plated chapeau de fer.
3. miniaturization overheat protector type coiling fuse-resistor according to claim 1, is characterized in that, described the second tinned wird and the 3rd tinned wird lay respectively on resin-coated both sides and be symmetrical arranged.
4. miniaturization overheat protector type coiling fuse-resistor according to claim 3, is characterized in that, described resinous coat is epoxy coating or phenolic coating.
5. miniaturization overheat protector type according to claim 4 coiling fuse-resistor, is characterized in that, described resin-coated be shaped as cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420025309.1U CN203787235U (en) | 2014-01-16 | 2014-01-16 | Minitype over-temperature protection type wire wrapping fuse resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420025309.1U CN203787235U (en) | 2014-01-16 | 2014-01-16 | Minitype over-temperature protection type wire wrapping fuse resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203787235U true CN203787235U (en) | 2014-08-20 |
Family
ID=51323396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420025309.1U Expired - Fee Related CN203787235U (en) | 2014-01-16 | 2014-01-16 | Minitype over-temperature protection type wire wrapping fuse resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203787235U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111128493A (en) * | 2018-10-30 | 2020-05-08 | 斯玛特电子公司 | Fuse resistor assembly and method of making same |
-
2014
- 2014-01-16 CN CN201420025309.1U patent/CN203787235U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111128493A (en) * | 2018-10-30 | 2020-05-08 | 斯玛特电子公司 | Fuse resistor assembly and method of making same |
| CN111128493B (en) * | 2018-10-30 | 2022-07-29 | 斯玛特电子公司 | Fuse resistor assembly and method of making same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20140820 |