CN202512977U - Temperature fuse anti-lightning surge wire-wound resistor - Google Patents
Temperature fuse anti-lightning surge wire-wound resistor Download PDFInfo
- Publication number
- CN202512977U CN202512977U CN201220140166XU CN201220140166U CN202512977U CN 202512977 U CN202512977 U CN 202512977U CN 201220140166X U CN201220140166X U CN 201220140166XU CN 201220140166 U CN201220140166 U CN 201220140166U CN 202512977 U CN202512977 U CN 202512977U
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- wire
- resistor
- lightning surge
- plug
- core rod
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Abstract
The utility model relates to a temperature fuse anti-lightning surge wire-wound resistor. Both ends of a core rod are covered by caps, a resistance wire is wound on the core rod, both ends of the resistance wire are respectively connected with the caps on both ends of the core rod, the core rod is a hollow body, an easy-to-fuse wire is mounted in the core rod, one end of the easy-to-fuse wire is connected with a first pin extended out of the core rod, the other end of the easy-to-fuse wire is connected with the cap of one end of the core rod through a wire, and the cap of the other end of the core rod is connected with a second pin. When the resistor is electrified to work, current passes through the resistance wire, the resistor constantly heats when abnormal current appears and exceeds the rated current of the resistor but does not reach the magnitude fusing the resistance wire, the easy-to-fuse wire fuses when the temperature reaches the open circuit temperature of the easy-to-fuse wire, and as a result, the resistor is open-circuited to protect a circuit. The structure of the temperature fuse anti-lightning surge wire-wound resistor is reasonable and compact, the performance is reliable, the temperature fuse anti-lightning surge wire-wound resistor is safe to use, and the anti-lightning surge performance and fusing accuracy of the temperature fuse anti-lightning surge wire-wound resistor are good.
Description
Technical field
The utility model relates to a kind of Fuse Type resistor.
Background technology
The structure of existing a kind of anti-lightning surge wirewound resistor is: be wound with resistance wire on the plug, the two ends of resistance wire join with one section pin respectively, at the flame retardant paint that is externally coated with of plug and resistance wire.The main deficiency that the resistor of this structure exists is: when the electric current through resistor greater than the multiple of its rated current hour; For example; When the electric current through resistor was 2.5 ~ 3 times of its rated current, resistor can't in time fuse, and the persistent fever phenomenon can appear in resistor; Its surface temperature can surpass 600 ℃, brings potential safety hazard thus.To this problem; Existing solution is: with the resistor use of connecting with Thermal Cutoffs; Reach the effect of timely fusing by Thermal Cutoffs, existingly thisly use the deficiency that exists to be resistor and Thermal Cutoffs combination: 1, Thermal Cutoffs and resistor can't closely be pressed close to, and its temperature sense error is bigger; Usually be higher than more than set point of temperature 5 degree in the resistor temperature, Thermal Cutoffs could be realized the open circuit action; 2, need Thermal Cutoffs and two components and parts of resistor be encapsulated in the magnetic shell, the step of its production technology increases, and the mass production cost is high, and product itself takes up room bigger.
The utility model content
The purpose of the utility model is to provide a kind of Temperature protection anti-lightning surge wirewound resistor, and this resistor had both had anti-preferably lightning surge performance, has preferably fusing performance in time again, and compact conformation, volume are little.
For realizing above-mentioned purpose; The utility model adopts following scheme: the anti-lightning surge wirewound resistor of Temperature protection, and the two ends of plug are with cap, are wound with resistance wire on the plug; The two ends of resistance wire join with the cap at plug two ends respectively; Plug is a hollow body, and the fusible metal silk is housed in plug, and first pin that fusible metal silk one termination has passes cap and stretches out mandrel outer; The other end of fusible metal silk joins through the cap of lead and plug one end, is connected with second pin on the cap of the plug other end.
Visible by such scheme, when this resistor energising work, electric current passes through resistance wire; Abnormal current occurring, and electric current surpasses the rated current of resistor, but when not reaching the value that makes resistance wire fusing; Resistor constantly generates heat, when temperature reaches the open circuit temperature of fusible metal silk, and the fusing of fusible metal silk; Make this resistor open circuit, realize protection circuit.
The utility model is rational in infrastructure, compact, dependable performance, safe in utilization, the accuracy good of its anti-lightning surge performance and fusing.
Description of drawings
Fig. 1 is the structure chart of the utility model one embodiment;
Fig. 2 is the A-A cutaway view of Fig. 1.
Embodiment
Further specify the utility model below in conjunction with embodiment and accompanying drawing.
Referring to Fig. 1, Fig. 2
Referring to Fig. 2, for ease of the location of fusible metal silk 5, have the back-up ring 4a of protrusion on plug 4 inwalls, fusible metal silk 5 is installed on the back-up ring 4a.
Claims (3)
1. the anti-lightning surge wirewound resistor of Temperature protection, the two ends of plug are with cap, are wound with resistance wire on the plug; The two ends of resistance wire join with the cap at plug two ends respectively; It is characterized in that: plug is a hollow body, and the fusible metal silk is housed in plug, and first pin that fusible metal silk one termination has stretches out mandrel outer; The other end of fusible metal silk joins through the cap of lead and plug one end, is connected with second pin on the cap of the plug other end.
2. according to the anti-lightning surge wirewound resistor of the said Temperature protection of claim 1, it is characterized in that: have the back-up ring of protrusion on the plug inwall, the fusible metal silk is installed on the back-up ring.
3. according to the anti-lightning surge wirewound resistor of the said Temperature protection of claim 1, it is characterized in that: cap, plug and on resistance wire be externally coated with the insulation enamelled coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220140166XU CN202512977U (en) | 2012-04-05 | 2012-04-05 | Temperature fuse anti-lightning surge wire-wound resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220140166XU CN202512977U (en) | 2012-04-05 | 2012-04-05 | Temperature fuse anti-lightning surge wire-wound resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202512977U true CN202512977U (en) | 2012-10-31 |
Family
ID=47065441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220140166XU Expired - Lifetime CN202512977U (en) | 2012-04-05 | 2012-04-05 | Temperature fuse anti-lightning surge wire-wound resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202512977U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610340A (en) * | 2012-04-05 | 2012-07-25 | 安徽昌盛电子有限公司 | Temperature insured anti-lightning surge wirewound resistor |
-
2012
- 2012-04-05 CN CN201220140166XU patent/CN202512977U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610340A (en) * | 2012-04-05 | 2012-07-25 | 安徽昌盛电子有限公司 | Temperature insured anti-lightning surge wirewound resistor |
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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 |
Free format text: FORMER OWNER: BENGBU DOUBLE CIRCLE ELECTRONICS GROUP CO., LTD. Effective date: 20131016 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131016 Address after: 233010 No. 818 Hing Middle Road, Bengbu, Anhui Patentee after: Anhui Changsheng Electronics Ltd. Address before: 233010 No. 88 Changzheng South Road, Bengbu hi tech Zone, Anhui Patentee before: Anhui Changsheng Electronics Ltd. Patentee before: Bengbu Double Circle Electronics Group Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: ANHUI CHANGSHENG ELECTRONICS CO., LTD. Free format text: FORMER NAME: ANHUI CHANGSHENG ELECTRONICS LTD. |
|
| CP03 | Change of name, title or address |
Address after: 233010 No. 88 Changzheng South Road, Anhui, Bengbu Patentee after: Anhui Changsheng Electronics Co., Ltd. Address before: 233010 No. 818 Hing Middle Road, Bengbu, Anhui Patentee before: Anhui Changsheng Electronics Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 233010 No. 88 Changzheng South Road, Anhui, Bengbu Patentee after: Bengbu double ring inductance Limited by Share Ltd Address before: 233010 No. 88 Changzheng South Road, Anhui, Bengbu Patentee before: Anhui Changsheng Electronics Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160622 Address after: 233010 No. 88 Changzheng South Road, Bengbu hi tech Zone, Anhui Patentee after: Anhui Changsheng Electronic Co., Ltd. Address before: 233010 No. 88 Changzheng South Road, Anhui, Bengbu Patentee before: Bengbu double ring inductance Limited by Share Ltd |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121031 |