CN202230856U - Transformer capable of preventing lightning stroke, overcurrent and overvoltage - Google Patents
Transformer capable of preventing lightning stroke, overcurrent and overvoltage Download PDFInfo
- Publication number
- CN202230856U CN202230856U CN2011203679552U CN201120367955U CN202230856U CN 202230856 U CN202230856 U CN 202230856U CN 2011203679552 U CN2011203679552 U CN 2011203679552U CN 201120367955 U CN201120367955 U CN 201120367955U CN 202230856 U CN202230856 U CN 202230856U
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- Prior art keywords
- transformer
- overcurrent
- overvoltage
- winding
- lightning stroke
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- Expired - Fee Related
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- Regulation Of General Use Transformers (AREA)
Abstract
The utility model discloses a transformer, aiming at providing a transformer capable of preventing lightning stroke, overcurrent and overvoltage which has higher reliability and safety and lower cost, and can reduce power supply volume. The transformer comprises a transformer framework (1) and an iron core (2), wherein the end plate of the transformer framework (1) is provided with a plurality of lead pins (3); the transformer framework (1) is wound with a primary winding and a secondary winding; the two ends of the primary winding are respectively connected with a piezoresistor (4) in parallel; and the primary winding is further connected with a thermistor (5) internally in series. The transformer capable of preventing the lightning stroke, the overcurrent and the overvoltage can be widely used in the field of transformers.
Description
Technical field
The utility model relates to a kind of anti-thunderbolt, overcurrent, crosses the die mould transformer.
Background technology
The environment for use of electronic transformer is very abominable, and high voltage transient or the electrical network self reason that should bear lightning induction cause overvoltage in short-term, also will bear overload that user's improper use or load faulty cause, overcurrent etc.Corresponding protection circuit generally is set in transformer equipment for this reason to be protected transformer.Just increase the volume of power supply part and the construction cycle of the entire equipment that extended and increase protective circuit, increased the cost of transformer widely.
The utility model content
The utility model technical problem to be solved is the deficiency that overcomes prior art, a kind of have higher reliability and fail safe is provided, and can reduces power volume, and lower-cost anti-thunderbolt, overcurrent, cross the die mould transformer.
The technical scheme that the utility model adopted is: the utility model comprises transformer framework, iron core; The end plate of said transformer framework is provided with some lead-in wire stitch; On said transformer framework, be wound with elementary winding and secondary winding; Two ends at said elementary winding are parallel with piezo-resistance, in said elementary winding, also are in series with thermistor.
Said iron core is made up of silicon steel sheet.
The beneficial effect of the utility model is: owing to be parallel with piezo-resistance in the elementary winding of the utility model in said transformer; In said elementary winding, be in series with thermistor; When having abnormal pressure to transmit in the electrical network; Said piezo-resistance becomes low resistance state by high-impedance state rapidly, and the disintegration voltage short circuit with being applied to the primary end reaches the protection purpose; When the overload of said secondary winding or break down and when causing that primary winding current increases unusually, said thermistor is transformed to high-impedance state by low resistance state rapidly because of elementary heating in winding, has clamped down on primary winding current; Reach protection purpose to transformer; So the utility model is through said piezo-resistance and said thermistor, the situation of transformer overcurrent, overvoltage or high-tension line are struck by lightning and are caused existing in the electrical network situation of high pressure; To the protection of transformer response not only fast but also accurate; Make whole transformer have higher reliability and fail safe, and can reduce power volume, reduce cost.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the utility model circuit theory sketch map.
Embodiment
Like Fig. 1, shown in Figure 2, the utility model comprises transformer framework 1, iron core 2, and said iron core 2 is made up of silicon steel sheet.The end plate of said transformer framework 1 is provided with some lead-in wire stitch 3.Said transformer framework 1 is provided with two winding slots.In said two winding slots, be wound with elementary winding and secondary winding respectively.Be parallel with piezo-resistance 4 at the two ends of said elementary winding, in said elementary winding, also be in series with thermistor 5.Said piezo-resistance 4 all is arranged on the said elementary winding and with the insulating tape wrapping with said thermistor 5 and fixes.When thunder-strike phenomenon takes place, when having abnormal pressure to transmit in the electrical network, said piezo-resistance 4 becomes low resistance state by high-impedance state rapidly, and the disintegration voltage short circuit with being applied to the primary end reaches the protection purpose; When the overload of the equivalent load of said secondary winding or break down and when causing that primary winding current increases unusually; Said thermistor 5 is transformed to high-impedance state by low resistance state rapidly because of elementary heating in winding; Clamped down on primary winding current, reached protection purpose transformer.
In sum, the utility model can be widely used in field transformer.
Claims (2)
1. an anti-thunderbolt, overcurrent, cross the die mould transformer; Comprise transformer framework (1), iron core (2); The end plate of said transformer framework (1) is provided with some lead-in wire stitch (3); On said transformer framework (1), be wound with elementary winding and secondary winding, it is characterized in that: be parallel with piezo-resistance (4) at the two ends of said elementary winding, in said elementary winding, also be in series with thermistor (5).
2. a kind of anti-thunderbolt according to claim 1, overcurrent, mistake die mould transformer, it is characterized in that: said iron core (2) is made up of silicon steel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203679552U CN202230856U (en) | 2011-09-29 | 2011-09-29 | Transformer capable of preventing lightning stroke, overcurrent and overvoltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203679552U CN202230856U (en) | 2011-09-29 | 2011-09-29 | Transformer capable of preventing lightning stroke, overcurrent and overvoltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202230856U true CN202230856U (en) | 2012-05-23 |
Family
ID=46081434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203679552U Expired - Fee Related CN202230856U (en) | 2011-09-29 | 2011-09-29 | Transformer capable of preventing lightning stroke, overcurrent and overvoltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202230856U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104952601A (en) * | 2015-06-30 | 2015-09-30 | 扬帆同创(中国)电子有限公司 | High-voltage prevention encapsulated transformer |
| CN105006355A (en) * | 2015-07-13 | 2015-10-28 | 扬帆同创(中国)电子有限公司 | Intelligent small-power EI type transformer |
| CN106406413A (en) * | 2015-07-28 | 2017-02-15 | 重庆宁来科贸有限公司 | NPN triode series multipoint type detection protection power supply |
-
2011
- 2011-09-29 CN CN2011203679552U patent/CN202230856U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104952601A (en) * | 2015-06-30 | 2015-09-30 | 扬帆同创(中国)电子有限公司 | High-voltage prevention encapsulated transformer |
| CN105006355A (en) * | 2015-07-13 | 2015-10-28 | 扬帆同创(中国)电子有限公司 | Intelligent small-power EI type transformer |
| CN106406413A (en) * | 2015-07-28 | 2017-02-15 | 重庆宁来科贸有限公司 | NPN triode series multipoint type detection protection power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHUHAI KANGDING ELECTRONICS CO., LTD. Free format text: FORMER NAME: ZHUHAI CITY KANGDING ELECTRIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 519015 Guangdong Province, Zhuhai City Industrial Zone Jida Garden Road No. 7 Building 5-6 Patentee after: Zhuhai Kangding Electronic Co., Ltd. Address before: 519015 Guangdong Province, Zhuhai City Industrial Zone Jida Garden Road No. 7 Building 5-6 Patentee before: Zhuhai City Kangding Electric Co., Ltd. |
|
| 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: 20120523 Termination date: 20170929 |