CN2518291Y

CN2518291Y - Non-metallic structured electrothermal body structure

Info

Publication number: CN2518291Y
Application number: CN 01267693
Authority: CN
Inventors: 张世卿
Original assignee: DELIXIN PRECISION INDUSTRY CO Ltd
Current assignee: DELIXIN PRECISION INDUSTRY CO Ltd
Priority date: 2001-10-16
Filing date: 2001-10-16
Publication date: 2002-10-23
Anticipated expiration: 2011-10-16

Abstract

An electric heating element structure which is a nonmetallic structure includes a power supply, a heating element and a conducting strip. The heating element fixed and provided with two conducting strips is of nonmetallic structure with conducting powder inside, and the conducting strips are connected with the power supply. The nonmetallic conducting material used in the prior electronic keystoke such as cotton, EVA foaming material, TPR plasticity plastic, rubber, silica gel, Silastic, etc. is utilized to enable the nonmetallic structure to have the function of the heating element through matching with the design of a conducting line, thereby eliminating the danger of electromagnetic wave of alternating current and getting an electric shock, and enhancing the efficacy of safety when in use.

Description

The electric heating element structure of nonmetal structure

Technical field

The utility model relates to electric heating element, refers in particular to a kind of electric heating element structure of nonmetal structure.

Background technology

At present the hot compress pad material all adopts tungsten filament line, nickel chromium triangle silk thread or soft PCB circuit board etc. to be heater, and outer rim is covered with heat transfer medium such as adhesive-bonded fabric about these heaters, allow thermal diffusion become bigger area, Fig. 1 is the heater circuit schematic diagram of traditional electrical hot body, wherein power supply 10 conducting between A point and B point, make heater 11 heating, again by be covered in heat transfer medium on the heater 11 with thermal diffusion to bigger areal extent, its major defect is:

1, the heat transfer medium heat of distributing, scope are bigger, and its temperature difference is bigger, have the uneven shortcoming of heat radiation.

2, heater 11 the easiest fractures promptly between A, B point, or are easily ruptured with heater 11 joints, and can't be used.

3, these heaters and heat transfer medium, because of the disappearance of easy fracture is arranged, the course of processing thereby defective products is often arranged causes the high and cost of failure rate to be difficult to reduction.

4, the required power supply of its heating adopts alternating current more, and it is dangerous higher to personal injury, as the injury of electric shock and electromagnetic wave etc., uses more dangerous.

Summary of the invention

The inventor is at above-mentioned shortcoming, and the long-pending electronic correlation Products Development design experiences of being engaged in for many years through constantly research improvement, creates the technical solution of the utility model finally.

Main purpose of the present utility model provides a kind of electric heating element structure of nonmetal structure, utilize the interior nonmetallic electric conducting material of electronic key now, comprise foam, EVA expanded material, TPR plasticity plastic cement, rubber, silica gel, silicon rubber etc., by its not the characteristic of easy fracture and conduction be applied, utilize the function of its tool conduction to cooperate the conducting wire design, make nonmetal structure have the function of heater, the electromagnetism of eliminating alternating current involves the danger of electric shock, overcome the drawback of prior art, reach the purpose that improves the fail safe of using.

Secondary objective of the present utility model provides a kind of electric heating element structure of nonmetal structure, by galvanic use, can be applicable to clothes, hot stove, electric felt, hot compress pad etc., reaches the purpose that can not be subject to indoor use in outdoor application.I

A purpose more of the present utility model provides a kind of electric heating element structure of nonmetal structure, reaches the increase activating cell, enhances metabolism and sanguimotor purpose.

The purpose of this utility model is achieved in that a kind of electric heating element structure of nonmetal structure, it includes power supply, heater and conducting strip, it is characterized in that: this heater is the nonmetal structure that contains conductive powder, adorns intrinsic two conducting strips on this heater, and this conducting strip connects power supply.

This conducting strip is bonding or be sutured in the surface of this heater.This conducting strip is bumped into or the one-body molded inside that is installed on this heater.

The utlity model has following advantage:

No matter 1, heating scope is much, all can keep identical temperature, guarantee the equilibrium of temperature.

2, direct current and alternating current all can be used as power supply, not because of the use of heat generating component limited power.

3, exothermic material easy fracture not is even the conducting wire fracture still can keep the exothermic material local pyrexia.

4, handling ease is difficult in the making defective products takes place, and then can reduces cost.

5, heater possesses heating and the in extensive range and uniform characteristic of temperature, and not having traditional structure need conduct heat and the uneven temperature problem by other assemblies.

Further specify below in conjunction with preferred embodiment and accompanying drawing.

Description of drawings

Fig. 1 is the schematic diagram of tradition heating circuit.

Fig. 2 is the schematic diagram of circuital current of the present utility model.

Fig. 3 is conducting strip of the present utility model and heating element structure schematic diagram.

Fig. 4 is another conducting strip of the present utility model and heating element structure schematic diagram.

Embodiment

Consult Fig. 2-shown in Figure 3, the electric heating element structure of nonmetal structure of the present utility model, when power supply 20 starts through power line 22, make conducting strip 21 conducting electric currents, making has the mobile electric current of a constant bearing to 24 between two conducting strips 21 that are installed on the heater 23, conductive powder in this heater 23 constitutes an impedance to electric current to 24, because conducting strip 21 is at heater 23 two ends, the resistance that forms between the conducting strip 21 is connected in parallel, and heater 23 so electric current produce the function that heating and temperature raise to 24;

Why this heater 23 can generate heat, and is metal or the nonmetallic powder that conduction is contained in inside, and electric current is constituted the resistance of an impedance and generates heat, with this as conducting electric power, and contact with point mode, reaching the conducting of electric current, the utility model promotes it and is heating function.

Consult shown in Figure 3, heater conductive structure of the present utility model, it is to be provided with two conducting strips 21 in heater 23, this conducting strip 21 gets rusty for preventing, can do the surface handles, as electroplating etc., and conducting strip 21 is can be with conducting resinl bonding or be sutured on the surface of heater 23, and Yu Yiduan connects power line 22.

Consult shown in Figure 4, another heater conductive structure schematic diagram of the present utility model, it mainly is the inside that conducting strip 25 is fixedly arranged on heater 23, to be bumped into or one-body molded processing mode is installed on heater 23 inside, can prevent that conducting strip 25 from getting rusty, and can with more driving fit of heater 23.

Above-mentioned the utility model, be to utilize nonmetallic materials heater with conduction, application electric technology makes it have heating function, to replace traditional metal heat radiating structure, and have than the even temperature scope, and the danger that the heating wire high temperature that does not have traditional structure damages is a kind of heating product with high security of innovation.

Described before combining, the utlity model has novelty, creativeness and practicality.Above specification only is the narration of preferred embodiment, and all modifications that each constituent components is done under principle of the present utility model, technology, development all should be covered within protection range of the present utility model by letter.

Claims

1, a kind of electric heating element of nonmetal structure structure, it includes power supply, heater and conducting strip, it is characterized in that: this heater is the nonmetal structure that contains conductive powder, adorns intrinsic two conducting strips on this heater, this conducting strip connects power supply.

2, the electric heating element of nonmetal structure according to claim 1 structure is characterized in that: this conducting strip is bonding or be sutured in the surface of this heater.

3, the electric heating element of nonmetal structure according to claim 1 structure, it is characterized in that: this conducting strip is bumped into or the one-body molded inside that is installed on this heater.