Embedded over-temperature protection electronic transformer

An electronic transformer and over-temperature protection technology, applied in the field of transformers, can solve the problems of increasing the difficulty of circuit layout, inaccurate transformer temperature detection, and increasing product volume, etc., to achieve simplified circuit layout, easy installation, and low cost Effect

Inactive Publication Date: 2012-02-22
宝电电子(张家港)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the relatively high-power switching power supply transformers used in precision instruments, medical equipment and other products, in order to prevent the internal components or the external temperature from being too high to damage the entire circuit device, the general protective measure is to add an over-temperature protection circuit to the peripheral circuit. Connecting an overheating protector increases the difficulty of circuit layout and increases the size of the entire product, and the temperature detection of the main heat-generating component of the transformer is not very accurate.

Method used

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  • Embedded over-temperature protection electronic transformer
  • Embedded over-temperature protection electronic transformer
  • Embedded over-temperature protection electronic transformer

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Embodiment Construction

[0011] The embedded electronic transformer with over-temperature protection of the present invention will be further described in detail below through specific embodiments.

[0012] Such as figure 1 , figure 2 As shown, the built-in over-temperature protection electronic transformer includes a wire frame 1 and a magnetic core 2 arranged in the wire frame 1. The inner walls of both sides of the wire frame 1 are provided with safety retaining wall tape 3, which can increase the creepage distance and increase Insulation effect, a first primary coil 4, a secondary coil 5, and a second primary coil 6 are sequentially wound in the bobbin 1, and the first primary coil 4 and the second primary coil 6 are respectively provided with a tap lead 7, two The root-tap lead wires 7 are respectively connected to the two ends of the over-temperature protection thermistor 8. The over-temperature protection thermistor 8 is arranged on the outermost layer of the inner coil of the wire frame 1, and a...

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Abstract

The invention relates to an embedded over-temperature protection electronic transformer which comprises a wire rack and a magnetic core arranged in the wire rack. Two primary coils and a secondary coil are wound in the wire rack; the two primary coils are provided with a tap outgoing line respectively; the two tap outgoing lines are connected with the two ends of an over-temperature protection thermistor respectively; and the over-temperature protection thermistor is arranged in the wire rack, and an insulating sleeve is sleeved outside. The embedded over-temperature protection electronic transformer provided by the invention is a transformer which realizes easiness in wiring and relatively small product volume.

Description

Technical field [0001] The invention relates to the technical field of transformers, in particular to an embedded electronic transformer with over-temperature protection. Background technique [0002] At present, high-power switching power supply transformers used in precision instruments, medical equipment and other products, in order to prevent internal components or external temperature from damaging the entire circuit device, the general protective measure is to add an over-temperature protection circuit in the peripheral circuit. Connecting an overheating protector increases the difficulty of the circuit layout and the volume of the entire product. The temperature detection of the main heating component of the transformer is also not very accurate. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide a built-in over-temperature protection electronic transformer with simple circuit layout and small overall product volume. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F29/02H01F27/40H02H5/04
Inventor 赵兴李慎太
Owner 宝电电子(张家港)有限公司
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