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Control circuit

A technology for controlling circuits and detecting circuits, which can be applied to circuits, electrical components, coupling devices, etc., and can solve problems such as large contact resistance, increased socket temperature, and potential safety hazards.

Inactive Publication Date: 2012-05-23
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the socket is in use, it will often produce excessive contact resistance because the plug is not plugged in properly, which will cause the temperature of the socket to rise, which is very likely to bring certain safety hazards

Method used

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Embodiment Construction

[0042] Below in conjunction with accompanying drawing and preferred embodiment the present invention is described in further detail:

[0043] Please refer to figure 1 A preferred embodiment of the control circuit of the present invention includes a power conversion circuit 10 , a plurality of temperature detection circuits 12 , a comparison circuit 15 , an alarm circuit 16 and a delay cut-off circuit 18 .

[0044] The power conversion circuit 10 is connected to the temperature detection circuit 12, the comparison circuit 15, the alarm circuit 16 and the delay cut-off circuit 18, and is used to convert the 220V commercial power into +12V DC voltage and +5V DC voltage for temperature detection. The measuring circuit 12, the comparing circuit 15, the alarm circuit 16 and the delay cut-off circuit 18 provide working power.

[0045] The plurality of temperature detection circuits 12 are all arranged in a socket to detect the temperature of the contact position between the plug and...

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PUM

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Abstract

The invention relates to a control circuit, which comprises a temperature sensing circuit, a comparing circuit and an alarming circuit. The temperature sensing circuit is used for sensing the temperature of a socket and converts the temperature to be a corresponding sensing signal, the comparing circuit is used for comparing the sensing signal with a reference signal corresponding to a reference temperature and outputting a control signal when the temperature of the socket is higher than the value of the reference temperature, and the alarming circuit is used for giving an alarm to remind a user according to the control signal. The control circuit disclosed by the invention can remind the user when the temperature of the socket is overhigh.

Description

technical field [0001] The invention relates to a control circuit, in particular to a control circuit of a socket. Background technique [0002] When the socket is in use, it will often produce excessive contact resistance because the plug is not plugged in properly, which will cause the temperature of the socket to rise, which is very likely to bring certain safety hazards. Contents of the invention [0003] In view of the above, it is necessary to provide a control circuit for the socket, which can remind the user when the temperature of the socket is too high. [0004] A control circuit comprising: [0005] A temperature detection circuit for detecting the temperature of a socket and converting it into a corresponding detection signal; [0006] A comparator circuit for comparing the detection signal with a reference signal corresponding to the reference temperature value, and outputting a control signal when the temperature of the socket is higher than the reference t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R13/66G01K1/02
CPCG01K3/005
Inventor 余松侯作林
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD