CN202405023U - Lightning strike resistant fuse resistor - Google Patents
Lightning strike resistant fuse resistor Download PDFInfo
- Publication number
- CN202405023U CN202405023U CN2011204614324U CN201120461432U CN202405023U CN 202405023 U CN202405023 U CN 202405023U CN 2011204614324 U CN2011204614324 U CN 2011204614324U CN 201120461432 U CN201120461432 U CN 201120461432U CN 202405023 U CN202405023 U CN 202405023U
- Authority
- CN
- China
- Prior art keywords
- resistance wire
- insulating body
- insulating substrate
- lightning strike
- fuse resistor
- 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
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Abstract
The utility model provides a lightning strike resistant fuse resistor, which relates to the technical field of resistors and comprises an insulating substrate. Two metal caps are arranged at two ends of the insulating substrate which is in a cylindrical structure, a resistance wire is wound on the insulating substrate, two ends of the resistance wire are connected with the metal caps at two ends of the insulating substrate respectively, two pins are externally connected with the metal caps at two ends of the insulating substrate respectively, the outer layer of the insulating substrate is provided with a radiation layer, and the resistance wire is wrapped in the radiation layer and made of PTC (positive temperature coefficient) materials. The lightning strike resistant fuse resistor has the advantages that the lightning strike resistant fuse resistor enables a circuit to be protected in lightning voltage surge, and safety of the circuit is guaranteed.
Description
[technical field]
The utility model relates to the resistor technical field, relates in particular to a kind of resistor with anti-thunderbolt performance.
[background technology]
Present resistor twines resistance wire on insulating body, come the size of controlling resistance value through the length of resistance wire; But these resistance wires, what the diameter of resistance wire was thinner can be used for short-circuit protection, and when crossing short circuit, the resistance wire that diameter is thinner melts when immediate current increases and breaks off; But the resistance wire diameter but can not play the effect of anti-thunderbolt voltage when thin.
[utility model content]
The purpose of the utility model is to overcome a kind of resistor that present resistor can not resist the deficiency of thunderbolt to provide.
The utility model is realized through following technical scheme: a kind of fusing resistor of anti-thunderbolt type; Comprise an insulating body; The two ends of said insulating body respectively are provided with a metal cap, and said insulating body is a cylindrical-shaped structure, and said insulating body is wound with resistance wire; The two ends of said resistance wire are connected with the metal cap at said insulating body two ends respectively; The metal cap at said insulating body two ends is an external pin respectively, and the skin of said insulating body also is provided with one deck heat dissipating layer, and said resistance wire is wrapped in the said heat dissipating layer; Said resistance wire is that ptc material is made.
Do further to set forth in the face of above technical scheme down:
Further, said insulating body is that ceramic material forms.
Further, said metal cap is zinc-plated chapeau de fer.
Further, said pin is a CP wire.
The beneficial effect of the utility model is: the resistor of one of which, this structure, its resistance wire are that ptc material is made; The resistance wire that ptc material is made, in the time of electric current moment increase, the resistance wire heating, its resistance also becomes greatly, and electric current will reduce thereupon; When electric current moment becomes very large, the resistance wire temperature will be very high, and at this moment, the resistance wire that ptc material is made will be fused, and not have explosive sound, no-spark during fusing; To the resistance wire of above-mentioned ptc material making, when meeting thunderbolt voltage, electric current moment increase, the resistance wire heating, also change is big thereupon for resistance, and the electric current of haveing suffered circuit will diminish, and by this, make circuit when thunderbolt, be protected; Two, said pin is a CP wire, compares as pin with using tinned wird in the prior art, has practiced thrift cost with CP wire as pin.
[description of drawings]
Fig. 1 is the overall structure sketch map of the utility model.
Reference numeral: 1, insulating body; 2, metal cap; 3, resistance wire; 4, pin; 5, heat dissipating layer.
[embodiment]
Below in conjunction with accompanying drawing and embodiment the utility model is done and to be further described:
With reference to shown in Figure 1, the fixedly fusing resistor of this embodiment, it comprises an insulating body 1, and the two ends of said insulating body 1 respectively are provided with a metal cap 2, and said metal cap 2 is zinc-plated chapeau de fer; Said insulating body 1 is a cylindrical-shaped structure, and insulating body 1 forms for ceramic material; Said insulating body 1 is wound with resistance wire 3, and the two ends of said resistance wire 3 are connected with the metal cap 2 at said insulating body 1 two ends respectively, and the metal cap 2 at said insulating body 1 two ends is an external pin 4 respectively, and said pin 4 is a CP wire; The skin of said insulating body 1 also is provided with one deck heat dissipating layer 5, and said resistance wire 3 is wrapped in the said heat dissipating layer 5; Said resistance wire 3 is made for ptc material.
The resistor of this structure, its resistance wire 3 is made for ptc material; The resistance wire 3 that ptc material is made, in the time of electric current moment increase, resistance wire 3 heatings, its resistance also becomes greatly, and electric current will reduce thereupon; When electric current moment becomes very large, resistance wire 3 temperature will be very high, and at this moment, the resistance wire 3 that ptc material is made will be fused, and not have explosive sound, no-spark during fusing; To the resistance wire 3 of above-mentioned ptc material making, when meeting thunderbolt voltage, electric current moment increase, resistance wire 3 heatings, also change is big thereupon for resistance, and the electric current of haveing suffered circuit will diminish, and by this, make circuit when thunderbolt, be protected; In addition, said pin 4 is a CP wire, compares as pin 4 with using tinned wird in the prior art, has practiced thrift cost with CP wire as pin 4.
According to the announcement and the instruction of above-mentioned specification, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned execution mode.Therefore, the embodiment that discloses and describe above the utility model is not limited to is in the protection range of the claim that also should fall into the utility model to some modifications and the change of the utility model.In addition, although used some specific terms in this specification, these terms are explanation for ease just, the utility model is not constituted any restriction.
Claims (4)
1. the fusing resistor of an anti-thunderbolt type, it is characterized in that: comprise an insulating body, the two ends of said insulating body respectively are provided with a metal cap; Said insulating body is a cylindrical-shaped structure; Said insulating body is wound with resistance wire, and the two ends of said resistance wire are connected with the metal cap at said insulating body two ends respectively, and the metal cap at said insulating body two ends is an external pin respectively; The skin of said insulating body also is provided with one deck heat dissipating layer, and said resistance wire is wrapped in the said heat dissipating layer;
Said resistance wire is that ptc material is made.
2. the fusing resistor of anti-thunderbolt type according to claim 1 is characterized in that: said insulating body is that ceramic material forms.
3. the fusing resistor of anti-thunderbolt type according to claim 1 is characterized in that: said metal cap is zinc-plated chapeau de fer.
4. the fusing resistor of anti-thunderbolt type according to claim 1 is characterized in that: said pin is a CP wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204614324U CN202405023U (en) | 2011-11-17 | 2011-11-17 | Lightning strike resistant fuse resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204614324U CN202405023U (en) | 2011-11-17 | 2011-11-17 | Lightning strike resistant fuse resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202405023U true CN202405023U (en) | 2012-08-29 |
Family
ID=46702655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204614324U Expired - Fee Related CN202405023U (en) | 2011-11-17 | 2011-11-17 | Lightning strike resistant fuse resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202405023U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108933009A (en) * | 2018-08-08 | 2018-12-04 | 西北核技术研究所 | A kind of high-power wire-wound resistor |
-
2011
- 2011-11-17 CN CN2011204614324U patent/CN202405023U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108933009A (en) * | 2018-08-08 | 2018-12-04 | 西北核技术研究所 | A kind of high-power wire-wound resistor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Patent of Shenzhen Grete Electronics Co.,Ltd. The person in charge Document name: Notice of termination of patent right |
|
| 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: 20120829 Termination date: 20201117 |