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Safety protection system of electric heating film heater

A safety protection device and electric heating film technology, which is applied in the direction of electric heating devices, ohmic resistance heating parts, electrical components, etc., can solve the problems of fast heat conversion speed of electric heating film heaters and affecting the normal operation of heaters, etc.

Inactive Publication Date: 2011-07-20
NINGBO WAHO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thermostat can sensitively sense temperature changes and cut off the power supply in time. However, due to the fast heat conversion speed of the electric heating film heater, when the electric heating film heater is just powered on and starts to work normally, the temperature of the electric heating film will rise rapidly. Make the thermostat take off and cut off the power at once, thus affecting the normal operation of the heater

Method used

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  • Safety protection system of electric heating film heater
  • Safety protection system of electric heating film heater
  • Safety protection system of electric heating film heater

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Embodiment Construction

[0012] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0013] see figure 1 and figure 2 , an electrothermal film heater, comprising an electrothermal film plate 1, the electrothermal film plate 1 includes a metal plate 11, the center of the metal plate 11 is coated with an insulating layer 12, an electrothermal film 13 is printed on the insulating layer 12, and the wiring of the electrothermal film 13 Based on the principle of increasing the length of the wire, increase the density as much as possible, so that the heat generated by the electrothermal film panel 1 is increased and the heat is generated quickly.

[0014] One end of the electrothermal film panel 1 is provided with a terminal block 14, a temperature sensing element 15 and a thermostat 16, and the terminal block 14 is connected with a power supply (not shown) to provide a power source for heating the electrothermal film panel 1; The...

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Abstract

The invention discloses a safety protection system of an electric heating film heater. The safety protection system provided by the invention comprises an electric heating film plate, wherein one end of the electric heating film plate is provided with a temperature controller. The safety protection system is characterized in that a film is arranged between the temperature controller and the electric heating film plate, thus avoiding the phenomenon that the power supply of the temperature controller is cut off immediately when a temperature control sheet is tripped due to overquick temperature rise at the local part of the electric heating film plate.

Description

technical field [0001] The invention relates to a safety protection device, in particular to a safety protection device for an electric heating film heater. Background technique [0002] The liquid heating unit of the existing water dispenser mostly adopts electrothermal film for heating, and the heat conversion speed of the electrothermal film is fast, the heat energy conversion efficiency is high, and the thermal inertia is small. The use of a sudden jump thermostat is an effective safety protection measure to control the temperature of this type of heater to avoid overheating of the electrothermal film heater when the water dispenser circuit fails and cause a safety accident. When the electrothermal film heater is overheated or dry-burned, the sudden-jump thermostat will automatically disconnect the circuit and automatically connect the circuit after the temperature drops. [0003] For example, in the safety protection device of an electrothermal film heater disclosed in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B1/02H05B3/02
Inventor 王梓宇张宇博
Owner NINGBO WAHO TECH
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