Electric blanket and low-voltage constant-temperature control device thereof

A constant temperature control, low pressure technology, applied in the direction of using electric means for temperature control, sleeping blankets, travel blankets, etc., can solve the problems of low safety, poor temperature constancy, and high cost, and achieve the effect of solving poor temperature constancy

Active Publication Date: 2011-11-23
胡少邦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a low-pressure constant temperature control device, which aims to solve the problems of poor temperature stability, high cost and low safety in the prior art

Method used

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  • Electric blanket and low-voltage constant-temperature control device thereof
  • Electric blanket and low-voltage constant-temperature control device thereof
  • Electric blanket and low-voltage constant-temperature control device thereof

Examples

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Effect test

Embodiment 1

[0044] figure 2 The example circuit structure of the low-voltage constant temperature control device provided by the first embodiment of the present invention is shown. For the convenience of description, only the parts related to the first embodiment of the present invention are shown, and the details are as follows:

[0045] As an embodiment of the present invention, the high-voltage rectification and filtering unit 101 includes a rectification bridge BD1 and an electrolytic capacitor C1, the input end of the rectification bridge BD1 is the input end of the high-voltage rectification and filtering unit 101, and the positive voltage output end of the rectification bridge BD1 is a high-voltage rectification and filtering unit The output terminal of 101, the negative voltage output terminal of the rectifier bridge BD1 is connected to the first power supply ground, the positive pole of the electrolytic capacitor C1 is connected to the output terminal of the rectifier bridge BD1,...

Embodiment 2

[0072] image 3 The example circuit structure of the low-voltage constant temperature control device provided by the second embodiment of the present invention is shown. For the convenience of description, only the parts related to the second embodiment of the present invention are shown, and the details are as follows:

[0073] As an embodiment of the present invention, the high-voltage rectification and filtering unit 101 includes a rectification bridge BD11 and an electrolytic capacitor C11, the input end of the rectification bridge BD11 is the input end of the high-voltage rectification and filtering unit 101, and the positive voltage output end of the rectification bridge BD11 is a high-voltage rectification and filtering unit The output terminal of 101, the negative voltage output terminal of the rectifier bridge BD11 is connected to the first power supply ground, the positive pole of the electrolytic capacitor C11 is connected to the output terminal of the rectifier brid...

Embodiment 3

[0100] Figure 4 The example circuit structure of the low-voltage constant temperature control device provided by the third embodiment of the present invention is shown. For the convenience of description, only the parts related to the third embodiment of the present invention are shown, and the details are as follows:

[0101] As an embodiment of the present invention, the high-voltage rectification and filtering unit 101 includes a rectification bridge BD21 and an electrolytic capacitor C21, the input end of the rectification bridge BD21 is the input end of the high-voltage rectification and filtering unit 101, and the positive voltage output end of the rectification bridge BD21 is a high-voltage rectification and filtering unit The output terminal of 101 and the negative voltage output terminal of the rectifier bridge BD21 are the first power supply ground, the positive pole of the electrolytic capacitor C21 is connected to the output terminal of the rectifier bridge BD21, a...

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PUM

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Abstract

The invention belongs to the field of temperature control, and provides an electric blanket and a low-voltage constant-temperature control device thereof. In the invention, as a high-voltage rectifying filtering unit, a power conversion unit, a low-voltage rectifying filtering unit, a voltage sampling unit, a temperature sampling unit, a security unit, a temperature adjusting constant-temperatureunit, a signal feedback unit, an open-loop protection unit and a pulse width modulation unit are arranged in the low-voltage constant-temperature control device, low-voltage DC (direct current) heating of a heating wire is realized, and the output voltage value can be automatically adjusted according to the preset temperature value and temperature state of the heating wire so that the temperatureof the heating wire quickly reaches the preset temperature value and the high-accuracy constancy is kept; and moreover, the low-voltage constant-temperature control device does not lose control due to invalid and damaged elements, and solves the problems of poor temperature constancy, high cost, low safety and electromagnetic radiation in the prior art.

Description

technical field [0001] The invention belongs to the field of temperature control, in particular to an electric blanket and a low-voltage constant temperature control device thereof. Background technique [0002] In the winter of cold climate, electric blanket is widely used as a kind of heating appliance. In the past, the control circuit of electric blanket products generally used high-voltage alternating current to directly heat the heating wire, and when the user used the electric blanket, his body was in close contact with the electric blanket, so this type of electric blanket had a serious electric shock hazard. In addition, high-voltage alternating current Heating will generate electromagnetic radiation, which will cause harm to the user's body. [0003] In view of the shortcomings of the electric blanket heated by high-voltage alternating current, a low-voltage power supply device is used in the prior art to convert high-voltage alternating current into low-voltage di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47G9/06G05D23/19
Inventor 胡少邦
Owner 胡少邦
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