CN2862563Y - Electric conducting dope coated plate-type heating body using plate-type graphite as main - Google Patents

Abstract

The utility model relates to an electric conducting dope coated plate-type heating body using plate-type graphite as main in constructional material science art, including a heating body basal plate and an adjacent composite waterproof instulating layer, on two sides of which two electrodes are embedded. A metal current homogenising zone is provided in area between the electrodes, an electrical conducting coating layer formed by graphite particles is coated on the composite waterproof instulating layer, a waterproof material layer connecting with the coating layer is provided on the upper surface covered by conducting heat material, on which an instulating material layer and a metal material layer are connected, and outermost layer is a surface decoration material cover layer. The plate-type heating body achieves homogenization of temperature, not only convenient for installing and construting, but has strong shock resistance performance, thus is applicable to floor heating for building of school, canteen, church and the like.

Description

The template heater that is coated with based on the electrical conductivity coating of template graphite

Technical field

The utility model belongs to the architectural materials science field, specially refers to a kind of structural design about the template heater, promptly a kind of template heater that is coated with based on the electrical conductivity coating of template graphite.

Background technology

Along with the needs of modernization construction, increasing New Building Materials continue to bring out the building materials market.From the angle of heating, heating, the former heating energy has experienced from coal to the oil transfer process to coal gas again, because people increase the attention degree of environment, needs gradually replace other heating energy with electric energy.According to the demand in market, utilize electricity electric blanket, Electric radiant Heating Film, electric heater, various heating cable in the concrete or the like that is embedded in to be arranged for the various equipment of energy heater.But, each have their own strong point, each have their own disadvantage, for example: electric leakage, temperature deviation, life-span are short, radiation unwanted electromagnetic wave, not energy-conservation, construction complexity etc.Therefore, when selecting for use, just be subjected to the restriction of each side.The demand situation in market has impelled our company to develop new heating building material product.

Summary of the invention

The utility model technical issues that need to address, it is the problem that occurs at electric heating body in the prior art, as the Electric radiant Heating Film mode with imbed many defectives such as the heat distribution that occurs in the mode of thermal conductive wire is inhomogeneous, dangerous, harmful, life-span of electromagnetic wave of radiation is short, construction inconvenience, redesign a kind of template heating element structure in order to overcome these defectives, it is the conductivity heating product based on health.The purpose of this utility model provides a kind of template heater that is coated with based on the electrical conductivity coating of template graphite.It is exactly the coating heater that contains graphite of the extremely thin plate shape of used thickness, be coated in a kind of film of certain simultaneously last formation of wood base board, its electrical conductivity coating inside is provided as electric current even metal band by certain distance, make the temperature deviation of whole heating board reduce to minimum value, so this is to be the template heater of coating combinations such as using energy source electric current homogeneous band and graphite with the electricity.Adopt the timber plate as the electrical conductivity coating substrate, its shock-resistant, easy installation, purposes are wide.

The purpose of this utility model, realize by the following technical solutions, a kind of template heater that is coated with based on the electrical conductivity coating of template graphite, comprise the heater substrate, and the composite water-proof adjacent insulation aspect with real estate one side, it is characterized in that, position, both sides in this waterproof insulation aspect, imbed two electrodes respectively, zone between described two electrodes equally spaced is provided with the electric current homogenizing band of metal, coating one deck contains the conductivity dope layer of graphite particle on described composite water-proof insulating barrier, complete coated electrode of this dope layer and electric current homogenizing band, coupled upper surface is a waterproof layer, it covers whole dope layer, is covered by Heat Conduction Material on it again, is connected with insulation material layer on it again, what link to each other with this insulation material layer is the metal material layer of handling as harmful ripple, and outermost layer is the waterproof of heating board surface decoration layer as a whole, wear-resisting material coating.

Described electrical conductivity coating is by having added the extremely thin tabular shape heating conductor that fully can not be upright that adds again in the solution that mixing diluents such as (thinner) becomes that the graphite microparticles foam mixes uniformly in the synthetic resin such as polyethylene, epoxy resin, polyamide and silicon, its thickness has only 0.2-0.5mm.

More than tabular graphite fine particle, be different from the low synthetic resin of other viscosity, the effect that former structure is mixed distributes at random, present structure is very regular and even.Contact is not old-fashioned carbon particle between them, but keeps surface contact state between graphite particle, so even a spot of graphite microparticles foam also can be guaranteed effective conductivity effect.

But, more than tabular graphite particle be distributed in uniformly on whole of plate and be difficult to.Because the electric current of heater is according to the dispersing and mixing degree of graphite on the plate face, resistance is changing.So admixed graphite and important how uniformly, otherwise can cause the heating board face temperature deviation to occur.Prevent temperature deviation between the electrode that is provided with on the end positions of plate and electrical conductivity coating inside imbedded electric current homogenizing band---metal material.It considers sense of current again according to the size of plate area, imbeds at least more than one.This is that electrical conductivity coating is coated in a different technical characterictic that generates heat on the plank.

Electric current flows to the opposing party from a side of electrode, the direction of the electric current homogeneous band that is provided with is with the direction unanimity of electrode, and the direction of this homogenizing band is vertical with the sense of current, parallels with the electrode at two ends, its function is eliminated the poor of conductivity Weak current, plays the even value of safeguarding electric current.The deviation that more than further specifies the magnitude of current that is taken place its process from a side to opposite side of electric current of some location points drops to minimum point.

In addition, on the substrate of the electric current homogenizing band that has set, be coated with need behind the electrical conductivity coating vibrations fully make between graphite particle and the conductivity coating mixing more evenly and reach the stable state of temperature.

The beneficial effects of the utility model are, this template heater has used graphite particle and electric current homogenizing band, have put into practice the uniformity of heater temperature on the plate in conjunction with conductivity coating uniformly, and the temperature deviation that has reached the heating board face is few purpose.Because the heater substrate has adopted wood material on the plate, be that the heater own wt reduces, not only install and easy construction, and its impact resistance is also superpower, applicable to the floor heating of building, also is applicable to school dining room, church etc.

Description of drawings

Fig. 1 is that template heating element structure described in the utility model tiltedly cuts open schematic diagram;

Fig. 2 is above-mentioned template heating element structure generalized section;

Fig. 3 a is the graphite particle micropowder state syndeton that adopts in the conductivity coating;

Fig. 3 b is the surface contact state syndeton between graphite particle that adopts in the conductivity coating;

Fig. 4 is an electric current homogenizing schematic diagram between two electrodes;

Fig. 5 is power on electrode resistance and an area intrinsic resistance schematic diagram of described template heater;

Embodiment

Represent the part of template heating element structure of the present utility model with reference to Fig. 1, Fig. 2, find out by oblique view 1 and sectional drawing 2.Template heater of the present utility model as shown in the figure is by plank, hard board, one surface of wood based panels (11) such as middle density compressive plate has been gone up compound waterproof insulating layer (12), whole insulating barrier two ends embedded electrodes (13A) (13B) have been considered the size of timber substrate between two electrodes, it is parallel with two electrode institutes that its direction of metal electric current homogenizing band (14) is set, coating on the insulating barrier (12) of having imbedded electrode and electric current homogenizing band and forming its thickness of a kind of film (15) by the molecular conductivity coating of granular graphite is 0.2-0.5mm, on established conductivity coating face, cover one deck waterproof insulation material (16), cover insulating barrier (16) as the open and flat layer of heat with Heat Conduction Material (17) on it, use insulating material (18) to cover (17) on it again as insulating barrier, use metal material (19) to cover (18) on it again, select the wear-resisting again decorative panel (20) of waterproof to cover (19) superficial layer on it as whole heating board structure as harmful ripple processing layer.

Shown in Fig. 3 a, for using the micro mist foam of old shape graphite particle (31), contact form between the particle, be a contact, therefore putting conduction efficiency will greatly reduce, thereby need a large amount of powder, when the graphite particle that uses with reference to Fig. 3 b be (32) connection form, contact between the particle is the face contact, has improved conductivity efficient.

With reference to Fig. 4, when two end electrodes (13A) power connection (13B) directly is connected (figure on less than demonstration) with power supply through substrate (11) and insulating barrier (12), and the acting among Fig. 4 as seen of the electric current homogenizing band (14) that does not directly link to each other with power supply.

A value electric current from electrode one end (13A) flows out when being communicated to the electrical conductivity paint film, may cause electric current A value to begin to change because be blended in the distribution fine difference of graphite powder in the coating, causes occurring temperature deviation.But this electric current that changes will return to original electric current A value when touching metal material electric conductor-electric current homogeneous band (14), played the uniformity of electric current, has kept the stationarity of heating temp.

The conductivity coating of above template is to be made of synthetic resin solvent and graphite particle, but it finishes the evaporation process that this will pass through oven dry and solvent, finally form mixture---the conductivity paint film of synthetic resin and graphite particle.Its thickness is approximately 0.2-0.5mm.

The non-resistance value of described template conductivity heating film should satisfy

ρ=RA/L=RWt/L=10～50 Ω cm ... (formula 1)

Here

ρ: the non-resistance of heater (Ω cm) on the plate

R: resistance (Ω)

A: the area (cm of heating on the plate ²)

W: the width of heater (cm) on the plate

L: the length of heater (cm) on the plate

T: the thickness of heater (cm) on the plate

The conductivity paint film that makes above non-resistance (ρ) more effectively plays the used experiment value of heating.But width of electrical conductivity paint film (w) and length (L) thickness be when to be 0.2mm following, for obtain above conductivity paint film necessity decide non-resistance, need to increase the quantity of graphite of mixing in the coating.But, if when the content of the inner graphite of conductivity coating reaches 40wt%, increase the viscosity of conductivity coating, then can not produce uniform conductivity coating.If it is also long according to the drying time that the coating content that is coated with increases needs that the thickness of conductivity paint film surpasses 0.5mm, cause the distortion of plate easily, consider also uneconomical from the angle of quantity of material again.

Will consider that simultaneously heating temp also may surpass needed temperature, therefore, preferably overheat protector is installed in heater inside onboard.

More than the material of said electric current homogenizing band select copper or aluminium, its thickness 0.1-0.5mm, the scope of width 5-20m/m.

In the manufacturing process of the present invention, set on the wood base board of electric current homogeneous band, coated the process that needs to shake substrate behind the electrical conductivity coating, this vibrations purpose is exactly in order to allow graphite particle be evenly distributed on wood base board in the conductivity coating.

With reference to Fig. 5, expression resistance between electrode and area intrinsic resistance schematic diagram, the relation of resistance between electrode R and area intrinsic resistance β meets following formula.

R '=β b/a or β=R ' a/b (formula 2)

Here

R ': resistance between electrode (Ω)

β: resistance (the Ω cm that area is intrinsic ²)

A: the length of electrode (cm)

B: interelectrode distance (cm)

By above embodiment explanation, the utility model has solved according to different big small sizes, utilize the electric current homogeneous band to make the temperature adjustment on the plate face even, the wood material that its heater substrate is selected for use obviously reduces the weight of heater, transportation, easy for installation good impact absorbency is arranged again.Can be used in the construction of heating buildings and local heating, interim heating.

The template heater characteristics that the utility model is used are not only to have eliminated harmful electricity Magnetic wave, and the very high far infrared of radiation in the heating process are good for one's health, therefore, and can To be used to widely the health-care hospital industry.

Claims (6)

1. template heater that is coated with based on the electrical conductivity coating of template graphite, comprise heater substrate (11), and the composite water-proof adjacent insulation aspect (12) with real estate one side, it is characterized in that, position, both sides in this waterproof insulation aspect, imbed two electrodes (13a) respectively, (13b), zone between described two electrodes equally spaced is provided with the electric current homogenizing band (14) of metal, go up the conductivity dope layer (15) that coating one deck contains graphite particle at described composite water-proof insulating barrier (12), this dope layer (15) is coated electrode (13a) fully, (13b) reach (14), coupled upper surface is waterproof layer (16), it covers whole dope layer (15), is covered by Heat Conduction Material (17) on it again, is connected with insulation material layer (18) again on it, what link to each other with this insulation material layer is the metal material layer of handling as harmful ripple (19), and outermost layer is the waterproof of heating board surface decoration layer as a whole, wear-resisting material coating (20).

2. the template heater that is coated with based on the electrical conductivity coating of template graphite according to claim 1 is characterized in that, the material that described electric current homogenizing band uses is copper or aluminium, and its thickness 0.1-0.5mm width is 5-20mm.

3. the template heater that is coated with based on the electrical conductivity coating of template graphite according to claim 1, it is characterized in that, the synthetic resin that described conductivity coating is made up of polyethylene, epoxy resin, polyamide and silicon and the mixture of the small powder of graphite, thickness is 0.2-0.5mm.

4. the template heater that is coated with based on the electrical conductivity coating of template graphite according to claim 1 is characterized in that, described waterproof insulation material (16) and insulating material (18), and its thickness range is 0.3-0.8mm, area size same substrate (11).

5. the template heater that is coated with based on the electrical conductivity coating of template graphite according to claim 1, it is characterized in that described Heat Conduction Material (17) and metal material (19) are selected for use to be copper, aluminum, its thickness range is 0.3-0.5mm, area size same substrate (11).

6. the template heater that is coated with based on the electrical conductivity coating of template graphite according to claim 1 is characterized in that described composite decoration cover layer (20), its thickness range are 3-5mm, area size same substrate (11).

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