CN101847497A - Restorable small-power transformer - Google Patents
Restorable small-power transformer Download PDFInfo
- Publication number
- CN101847497A CN101847497A CN200910030259A CN200910030259A CN101847497A CN 101847497 A CN101847497 A CN 101847497A CN 200910030259 A CN200910030259 A CN 200910030259A CN 200910030259 A CN200910030259 A CN 200910030259A CN 101847497 A CN101847497 A CN 101847497A
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- Prior art keywords
- transformer
- side winding
- restorable
- small
- temperature protector
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- Regulation Of General Use Transformers (AREA)
- Protection Of Transformers (AREA)
Abstract
The invention provides a restorable small-power transformer, which can be restored to be continuously used after the temperature thereof is reduced at a certain degree by adopting a PTC temperature protector to have an automatic-restoration function. The transformer solves the problem that the existing fuse type transformer can not be restored. The restorable small-power transformer comprises a primary side winding and a secondary side winding, wherein a circuit of the primary side winding is internally connected with the PTC temperature protector. The secondary side winding is one, two or a plurality of winding(s). The PTC temperature protector is connected in an enamelled wire or a copper wire of the primary side winding in series.
Description
Technical field:
The invention provides a kind of recoverable wattage transformer, belong to the transformer technology field.
Background technology:
Existing wattage transformer refers to that mainly power is the transformer of 100-200W, and as shown in Figure 1, that the protective device in this transformer uses is Fuse Type fuse L
1, when the fuse temperature reaches fusing-off temperature point, fuse melting, thus circuit is played the effect of protection.But the Fuse Type fuse L of existing this transformer
1In case fusing, the fusing back is irrecoverable, and equipment just can not work on again.Transformer has fused generally speaking, just needs to change transformer, even sometimes the monoblock circuit board is scrapped, thereby increased production cost.
Summary of the invention:
The present invention is existing to provide a kind of restorable small-power transformer at existing technology status, and this transformer plays the effect of protection coil owing to adopt the PTC temperature protector, and after the transformer temperature descended, it had self-recovering function.
The objective of the invention is to realize by following measure:
A kind of restorable small-power transformer, it comprises first side winding and secondary side winding, it is characterized in that: be connected with the PTC temperature protector in the circuit of described first side winding.
Secondary side winding can all can for one, two or a plurality of winding in the restorable small-power transformer among the present invention.
The PTC temperature protector is connected in the enamelled wire or copper cash of first side winding, and circuit is played superheat protecting function.
The present invention has following advantage compared to existing technology:
Wattage transformer of the present invention uses the PTC temperature protector, and it disconnects when temperature reaches cut-off point, and disconnecting the back temperature will descend, and after temperature drops to battle, can resume work.
The present invention adopts the PTC temperature protector to substitute the expendable Thermal Cutoffs in original disconnection back, has reduced the spoilage of transformer, has saved production cost.
PTC temperature protector of the present invention disconnects when the transformer coil temperature is elevated to its cut-off point, plays the effect of protection coil.The temperature that disconnects the back coil can descend, and when coil temperature dropped to the battle of PTC, the PTC temperature protector can be opened transformer is worked on.
The present invention utilizes the PTC temperature protector to disconnect back self recovery performance, and equipment can work on after recovering.Thereby reduced the scrappage of transformer or circuit board, economical and practical.
Description of drawings:
Fig. 1 is the schematic diagram of existing wattage transformer.
Fig. 2 is the schematic diagram of restorable small-power transformer of the present invention.
Among the figure: L
1-Fuse Type fuse; L
2-PTC temperature protector.
Embodiment:
Restorable small-power line style transformer of the present invention is applicable to that power supply is the AC and DC power supply of 110-200V, and the power bracket of transformer is at 100-200W, and this transformer mainly is used on the low power household appliances.It comprises first side winding and secondary side winding, is connected with the PTC temperature protector in the circuit of first side winding, is used for replacing original Fuse Type fuse.The PTC temperature protector is connected in the enamelled wire (copper cash) of first side winding, and circuit is played superheat protecting function.
As shown in Figure 2, primary side input 220V alternating current in the restorable small-power transformer of the present invention, secondary side winding is adopted two winding S1, S2, and two windings of secondary side connect load circuit, L respectively
2It is the PTC temperature protector that is connected in the transformer primary side circuit.
Wattage transformer of the present invention uses the PTC temperature protector when temperature reaches breakpoint, L
2Disconnect, after temperature drops to battle, L
2Close, transformer can be resumed work again.
The course of work of PTC temperature protector of the present invention can be: the circulating phenomenon of " working-disconnect-resume work-disconnect ".
Among the present invention, the Circuit Fault on Secondary Transformer winding also can be one or more windings, all can adopt the PTC temperature protector among the present invention.
The present invention utilizes the PTC temperature protector to disconnect back self recovery performance, and equipment can work on after recovering.Thereby reduced the scrappage of transformer or circuit board, economical and practical.
Claims (3)
1. restorable small-power transformer, it comprises first side winding and secondary side winding, it is characterized in that: be connected with the PTC temperature protector in the circuit of described first side winding.
2. restorable small-power transformer according to claim 1 is characterized in that: described secondary side winding is one, two or a plurality of winding.
3. restorable small-power transformer according to claim 1 is characterized in that: described PTC temperature protector is connected in the enamelled wire or copper cash of first side winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910030259A CN101847497A (en) | 2009-03-24 | 2009-03-24 | Restorable small-power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910030259A CN101847497A (en) | 2009-03-24 | 2009-03-24 | Restorable small-power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101847497A true CN101847497A (en) | 2010-09-29 |
Family
ID=42772075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910030259A Pending CN101847497A (en) | 2009-03-24 | 2009-03-24 | Restorable small-power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101847497A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1569188A (en) * | 1975-11-20 | 1980-06-11 | Transmicro Scandinavia Ab | Electrical transformer system |
| JPH04349610A (en) * | 1991-05-28 | 1992-12-04 | Meidensha Corp | Transformer |
| CN2189347Y (en) * | 1994-03-12 | 1995-02-08 | 吴忠安 | Automaticall controlled transformer |
| WO2003063188A1 (en) * | 2002-01-24 | 2003-07-31 | Square D Company | Non-energy limiting class 2 transformer with positive temperature protection |
| CN2783502Y (en) * | 2005-04-12 | 2006-05-24 | 珠海格力电器股份有限公司 | Power transformer device |
| CN201359909Y (en) * | 2009-02-25 | 2009-12-09 | 铜陵三佳变压器有限责任公司 | Protective transformer |
-
2009
- 2009-03-24 CN CN200910030259A patent/CN101847497A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1569188A (en) * | 1975-11-20 | 1980-06-11 | Transmicro Scandinavia Ab | Electrical transformer system |
| JPH04349610A (en) * | 1991-05-28 | 1992-12-04 | Meidensha Corp | Transformer |
| CN2189347Y (en) * | 1994-03-12 | 1995-02-08 | 吴忠安 | Automaticall controlled transformer |
| WO2003063188A1 (en) * | 2002-01-24 | 2003-07-31 | Square D Company | Non-energy limiting class 2 transformer with positive temperature protection |
| CN2783502Y (en) * | 2005-04-12 | 2006-05-24 | 珠海格力电器股份有限公司 | Power transformer device |
| CN201359909Y (en) * | 2009-02-25 | 2009-12-09 | 铜陵三佳变压器有限责任公司 | Protective transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100929 |