Temperature protection device of switching tube and electrical equipment

Abstract

The invention discloses a temperature protection device of a switching tube and electrical equipment. The device comprises a switching tube body, a temperature detection unit and a temperature protection unit; the switch tube body and the temperature detection unit are integrally arranged; the temperature protection unit is connected with the temperature detection unit and the temperature protection unit; the temperature detection unit is configured to detect the temperature of the switching tube body and output a temperature protection signal when the temperature of the switching tube body is greater than or equal to a temperature protection threshold of the switching tube body; and the temperature protection unit is configured to turn off a driving signal of the switching tube body under the condition that the temperature protection signal is received so as to realize temperature protection of the switching tube body. According to the scheme, the accuracy of temperature detection of the switching tube is improved, so that the reliability of temperature protection of the switching tube is improved.

Description

technical field [0001] The invention belongs to the technical field of electronic circuits, and in particular relates to a temperature protection device for a switch tube and electrical equipment, in particular to a switch tube with temperature protection and electrical equipment with the switch tube. Background technique [0002] In the temperature protection scheme of the switching tube, it is necessary to detect the temperature of the switching tube through a temperature sensing package. The temperature-sensing package is set outside the switch tube. Due to the influence of the external environment of the switch tube, the detected temperature is often not the real temperature of the temperature-sensing package, which affects the accuracy of temperature detection of the temperature-sensing package and affects the accuracy of the switch tube Reliability for temperature protection. [0003] The above content is only used to assist in understanding the technical solution of ...

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Problems solved by technology

[0004] The object of the present invention is to provide a temperature protection device and electrical equipment for a switch tube to solve the problem of temperature protection of the switch tube by detecting the temperature of the switch tube through a temperature sensing package arranged outside the switch tube. The accuracy of temperature detection is not enough, which affects the reliability of the temperature protection of the switch tube, and the effect of improving the reliability of the temperature protection of the switch tube is achieved by improving the accuracy of the temperature detection of the switch tube

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