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Electric heating element and manufacturing method thereof

A technology for heating elements and manufacturing methods, which is applied in the field of electric heating elements and its manufacturing, can solve the problems of unstable quality of carbon fiber products, weak research and development foundation, and substandard performance, and achieve the effects of eliminating human fatigue, low cost, and simple structure

Inactive Publication Date: 2011-11-23
SHANGHAI KETER POLYMER MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The second is the heat generation form of carbon fiber. The existing domestic research and development foundation is weak, the technology is backward, the quality of carbon fiber products is unstable, and the performance is not up to standard. It mainly relies on imported raw materials from Japan and South Korea to engage in the development and application of downstream products. The unit price of such products is relatively high.

Method used

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  • Electric heating element and manufacturing method thereof
  • Electric heating element and manufacturing method thereof
  • Electric heating element and manufacturing method thereof

Examples

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Embodiment 1

[0040] See Figure 1~4 as shown, Figure 1~4 What is shown is a specific embodiment of the electric heating element of the present invention, which is a relatively simple and common design scheme of a network structure composed of PTC thermistors 1 .

[0041]The thermally conductive positive electrode 2 and the thermally conductive negative electrode 3 are closely attached to the upper and lower surfaces of the PTC thermistor 1, and the two are only connected through the PTC thermistor 1; the thermally conductive positive electrode 2, the thermally conductive negative electrode 3 and multiple PTC thermistors The combination of sensitive resistors 1 (m rows×n columns of PTC thermistors 1) constitutes a polygonal network structure, and the thermally and electrically conductive positive electrodes 2 and thermally conductive and conductive negative electrodes 3 are arranged parallel to each other and criss-crossed. figure 1 and Figure 4 It can be seen that the thermally conduct...

Embodiment 2

[0052] See Figure 5 as shown, Figure 5 Shown is the electric heating heating element made into the electric heating cushion. Designed to use a DC power supply: output 12VDC, maximum current: 2A, select a Curie temperature of 55°C, R25 resistance of 500±50Ω, and a withstand voltage of more than 500V. The ceramic positive temperature coefficient thermistor is made according to the aforementioned method. Figure 5 Shown is a network structure composed of 9×7 PTC thermistors 1; the initial heating power is 18W, and the actual measurement shows that the continuous heating of the electric heating cushion takes 135 seconds from normal temperature to the thermal equilibrium temperature, and the temperature at thermal equilibrium is 49.5°C, and the heat is generated at this time The power is 9.3W.

[0053] The specific manufacturing method is as follows:

[0054] (1) Select the appropriate PTC thermistor 1 according to the needs: the Curie temperature is 55°C, the R25 resistance i...

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Abstract

The invention relates to an electric heating element. The electric heating element comprises an electric heating body, wherein the electric heating body comprises a heat and electricity conducting positive electrode, a heat and electricity conducting negative electrode, at least two positive temperature coefficient (PTC) thermistors, a heat-conducting insulating layer, an ornamental external wrapping layer, a direct-current power supply and an overcurrent, overtemperature and overvoltage protection component; the PTC thermistors are positioned between the heat and electricity conducting positive electrode and the heat and electricity conducting negative electrode and are electrically connected with the heat and electricity conducting positive and negative electrodes respectively; the heat and electricity conducting positive and negative electrodes, and the PTC thermistors form a net structure; preferably, the net structure is a polygonal net structure; the heat-conducting insulating layer wraps the electric heating body; the ornamental external wrapping layer wraps the heat-conducting insulating layer; the direct-current power supply penetrates through the heat-conducting insulating layer through a wire and is electrically connected with the electric heating body; and the overcurrent, overtemperature and overvoltage protection component is arranged on the wire for connecting the direct-current power supply and the electric heating body. The invention further provides a relative manufacturing method for the electric heating element. The electric heating element has unique design, skilful concept, and a simple structure, and the advantages of no electromagnetic wave radiation, constant temperature, high safety coefficient, simple manufacturing process, low cost and the like; human fatigue can be eliminated; and the electric heating element can be popularized and applied on a large scale.

Description

technical field [0001] The invention relates to the technical field of heating devices for civilian use, in particular to the technical field of electric heating devices, and specifically refers to an electric heating heating element and a manufacturing method thereof. Background technique [0002] With the increasing awareness of health care and the increasing demand for heating and physiotherapy products, heating products are in a trend of flourishing. [0003] The existing related products are resistance wire or carbon conductive fiber for heating and heating. One of the resistance wire heating elements is to weave or sew a special flexible cable-type electric heating element with up to the standard insulation performance into the blanket in the shape of a snake. That is, it emits heat, and its internal circuit is designed as a series circuit or a series-parallel combination circuit. Disconnection of any one of them will cause damage to the heating element and can no long...

Claims

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Application Information

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IPC IPC(8): H05B3/34
Inventor 黄金华王鹏兴敖伦坡
Owner SHANGHAI KETER POLYMER MATERIAL
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