Safety isolating transformer for constant-temperature electrically-heated mattress

Abstract

The invention discloses a safety isolating transformer for a constant-temperature electrically-heated mattress, comprising a rectifying and isolating transformation circuit, a secondary rectifying circuit, a heating circuit, a temperature detecting unit and a temperature control circuit, wherein the rectifying and isolating transformation circuit is used for carrying out rectification and transformation on input 220V alternating current; the secondary rectifying circuit is used for carrying out rectification on alternating-current signals output by the rectifying and isolating transformation circuit; the heating circuit is connected with the secondary rectifying circuit and consists of a plurality of heating elements; the temperature detecting unit is used for carrying out real-time detection on the temperature of the heating circuit; the temperature control circuit provides vibrating signals for an isolating transformation circuit in the rectifying and isolating transformation circuit and carrying out control adjustment on output power of the rectifying and isolating transformation circuit correspondingly according to the signals detected by the temperature detecting unit; and the temperature control circuit is connected with the rectifying and isolating transformation circuit. In the safety isolating transformer, the circuit design is simple and reasonable, the cost is low, the working performance is reliable, the use effect is good, and the practical problems of poor performance, more potential safety hazards and the like in the use process of the existing electrically-heated mattress can be effectively solved.

Description

technical field [0001] The invention relates to an isolation transformer, in particular to a safety type isolation transformer for constant temperature electric heating mattress. Background technique [0002] Most of the electric heating mattresses sold on the market do not have a constant temperature, especially when working with 220V voltage, it is extremely unsafe to lay the electric heating mattress directly on the bed. Every winter, the casualties and property losses caused by electric heating mattress leakage and other reasons are very large. In addition, due to the improper use of the electric heating mattress, when the electric heating mattress works for a long time and the temperature continues to rise, fires and burns often occur. The above-mentioned safety hazards of the electric heating mattress have now become a social safety problem. . Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a safe isolati...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a safe isolation transformer for constant temperature electric heating mattresses, which has simple and reasonable circuit design, low cost, reliable working performance and good use effect, and can effectively overcome the existing problems. There are practical problems such as poor performance and many safety hazards in the use of electric heating mattresses

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