KR20210041384A - Heating pad apparatus - Google Patents

Abstract

According to the present invention, provided is a heating pad apparatus comprising: a pad part having a predetermined thickness and area and being in close contact with the affected area; and a heating part that is built into the pad part and generates heat toward the affected part in close contact with the pad part. The heating pad comprises: a heating structure that is located between an insulating material and a protective material of the pad part and generates thermal energy through electrical energy; and a thermal insulation structure positioned between the heating structure and the protective material to prevent the heat energy generated from the heating structure from being released to the outside of the protective material. The present invention allows the heat generated from the heating part to be radiated only through one side of the pad part, that is, through the part in close contact with the affected part, thereby suppressing the waste of heat and improving a thermal treatment effect.

Description

Heating pad apparatus

The present invention relates to a heating pad device, and more particularly, a heating part is built in a hard and soft pad part that is in close contact with the affected part, and a heat function is provided to protect the surgical site from external shocks, so that cuts, gunshot wounds, or The present invention relates to a heating pad device capable of reducing surgical pain and rapid recovery of a surgical site after abdominal and thoracic surgery.

In general, after a surgical operation such as a gunshot wound or a cut, heat treatment that exerts anti-inflammatory analgesic effect is mainly performed in order to relieve or treat hemostasis or pain in the affected area or the surgical site. Such heat treatment enables hemostasis and enables pain and swelling. It calms down and helps the human body to heal itself naturally.

Accordingly, in recent years, heating pad devices that provide a heating function to the affected area have been developed.

Such a heating pad device includes a pad of a material and shape that has a predetermined area and is in close contact with the affected area or the surgical area, and an electrical heating means configured inside the pad, and the heat generated by the heating means is transmitted to the affected area. B. It has a composition that is delivered to the surgical site to perform poultice and heat treatment.

Here, the conventional heating pad device has a configuration in which operation power is supplied from the outside to the heating means, and a configuration in which a heating temperature is variously heated by a controller, so that a variety of patients can use it. .

Therefore, the conventional heating pad device is a one-time, that is, since one patient is not discarded after being used during the wound treatment period after surgery, and has a configuration that can be used alternately by a number of patients, it is not a simple physical therapy or auxiliary treatment means, but hygiene. There is a problem in that hygiene is unreasonable to be applied to the affected area after this strictly required surgical operation.

In addition, the heating temperature of the heating means for thermal treatment must be accurately controlled according to the patient's condition. As the temperature is controlled repeatedly and variably, the reliability of the heating temperature of the heating means decreases, resulting in efficient heating. There is a problem that the function is not provided.

In addition, since it has a structure in which heat generated by the heating means is radiated, diffused, or radiated to both one surface and the other surface of the pad, there is a problem in that the heating function is deteriorated.

(Patent Document 0001) Korean Patent Registration No. 0784112

(Patent Document 0002) Korean Registered Utility No. 0263558

(Patent Document 0003) Republic of Korea Registered Utility No. 0408 590

Therefore, the object of the present invention is that the heating part is built in the pad part, and the heating part is disposed at one time at any one of 45 degrees, 50, 55 degrees, 60 degrees, and 65 degrees (one patient uses it during the wound treatment period after surgery and then discards it. Period) to provide a heating pad device that can be selectively used according to the type and purpose of the patient's surgery.

In addition, an object of the present invention is to provide a heating pad device capable of suppressing waste of heat and improving the thermal treatment effect by allowing heat generated from the heating unit to be radiated only through one surface of the pad unit, that is, a portion that is in close contact with the affected area. .

Meanwhile, the object of the present invention is not limited to the above-mentioned object, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

According to the present invention, a pad portion having a predetermined thickness and area and in close contact with the affected portion; There is provided a heating pad device including a heating unit that is built into the pad unit and generates heat toward an affected area in close contact with the pad unit.

Here, the pad portion, a contact pad having a material that is in close contact with the affected portion; An insulating material configured on the upper surface of the contact pad to minimize the feeling of foreign matter in the heating unit when the contact pad is in close contact with the affected area and to protect the heat of the heating unit; A protective material configured on the upper surface of the edge portion of the adhesion pad to protect the affected part from external impacts and to provide a predetermined space in which a heating part is configured between the heat insulating material; And a finishing pad configured on the upper surface of the protective material to protect the components.

In addition, the heating unit may include a heating structure positioned between the insulation material and the protection material of the pad unit to generate thermal energy through electric energy; It is preferable to include a thermal insulation structure positioned between the thermal structure and the protective material to prevent heat energy generated from the thermal structure from being discharged to the outside of the protective material.

In addition, the heating structure includes: a foil for heat conduction that faces an upper surface of the pad part in close contact with the affected part and a heating wire is formed on the back surface so that heat generated from the heating wire is transferred toward the adhesion pad; A heat insulating material covering the back side of the foil; And an adhesive layer for heat conduction that is applied between one side of the heat insulating material and the back side of the foil so that the wiring position of the heat wire is fixed through adhesion between the heat insulating material and the foil, and at the same time, the heat of the heat wire is conducted toward the back side of the foil. desirable.

In addition, the thermal insulation structure includes: a shielding aluminum plate whose one side faces the protective material and the back side faces the one surface of the heat protection material to prevent heat conducted to the foil from being discharged to the outside of the protective material; It is preferable to include a padding for keeping warmth configured on the back surface of the aluminum plate and positioned to face one surface of the heat protection material to absorb heat from the heat protection material and inhibit it from being transmitted to the aluminum plate.

Therefore, according to the present invention, a heating part is built into the pad part, and the heating part is one-time at any one of 45 degrees, 50, 55 degrees, 60 degrees, and 65 degrees (one patient uses it during the wound treatment period after surgery and then discards it. Period) so that it can be selectively used according to the type and purpose of the patient's surgery.

In addition, heat generated from the heating unit may be radiated only through one surface of the pad unit, that is, a portion that is in close contact with the affected area, thereby suppressing waste of heat and improving the effect of thermal treatment.

In addition, as the pad unit with the built-in heating unit is used for a single use, the heating temperature control of the heating unit can have high reliability compared to the conventional heating pad device, and thus, precise thermal treatment can be enabled according to the patient's condition. .

Meanwhile, the effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view showing a heating pad device according to a preferred embodiment of the present invention;
Figure 2 is an exploded perspective view showing the heating pad device of Figure 1;
3 is a cross-sectional view showing the heating pad device of FIG. 1;
4 is a perspective view showing a heating structure among the configuration of a heating unit in the heating pad device of FIG. 1; And
5 is a cross-sectional view showing a heating structure in the configuration of the heating unit of FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 5, the heating pad device according to a preferred embodiment of the present invention includes a pad portion 110 that is in close contact with the affected portion with a predetermined thickness and area, and the pad portion 110 It includes a heating unit 120 that is built-in and generates heat toward the affected area in close contact with the pad unit 110 to provide a heating function.

Here, in the heating pad apparatus of the present invention, it is preferable that the operation of the heating unit 120 is controlled by the control unit 130 located outside the pad unit 110.

The pad part 110 is a case means that has one surface in close contact with the affected part and heat from the heating part 120 is transferred, and has a predetermined thickness and area, and has a contact pad 111 having a material that is in close contact with the affected part, a contact pad It is composed of a predetermined thickness on the upper surface of (111) to minimize the feeling of foreign body due to the configuration of the heating unit 120, which is built in when the contact pad 111 is in close contact with the affected area, and a thermal insulation function that protects the heat of the heating unit 120 Insulating material 112 to provide a predetermined thickness is configured on the upper surface of the edge portion of the adhesion pad 111 to protect the affected area from external impact, and a predetermined space in which the heating unit 120 is configured between the insulating material 112 It provides and includes a protective material 113 having a material to be in close contact with the affected part, and a finishing pad 114 configured to have a predetermined thickness on the upper surface of the protective material 113 to protect the constituent parts.

The adhesion pad 111 is a means for being in close contact with the affected part and transferring heat of the heating part 120 to the affected part, and has a structure in which a 0.3mm thick soft polyurethane film is adhered to the upper surface of the nonwoven fabric having a predetermined thickness. .

Here, the polyurethane film has a thickness of 0.3mm, but if the thickness is thicker than 0.3mm, when the affected part has a curved surface, the adhesion to the affected part decreases and the heat conduction efficiency decreases, and if it is thinner than 0.3mm, the adhesion pad 111 Since it is difficult to maintain a predetermined strength, it is easily bent or fractured even in a predetermined bend, thereby reducing the adhesion to the affected part.

Accordingly, it is preferable that the contact pad 111 has the critical significance of limiting the numerical values as described above.

The insulating material 112 is a means for providing a foreign body sensation suppression and warming function through a predetermined cushioning function by bonding or in close contact with the upper surface of the polyurethane film of the adhesion pad 111, and has a known sponge material having a thickness of 2 mm.

Here, the sponge has a thickness of 2mm, but if it is thicker than 2mm, the heat retention is increased too, and the heat conduction efficiency is rather lowered, and if it is thinner than 2mm, there is a problem that the feeling of a foreign body is lowered and the patient feels uncomfortable.

Accordingly, it is preferable that the insulating material 112 has the critical significance of limiting the numerical values as described above.

The protective material 113 is configured on the upper surface of the edge portion of the polyurethane film of the adhesion pad 111 to protect the affected area from the outside and provide a space for the heating unit 120 to be built-in, and the shape is deformed to contact the affected area to heat As a means of improving the therapeutic effect, a 0.2mm-thick hard PVC and a 0.2mm-thick soft PVC may be bonded or adhered to each other through thermoforming, or a PU having a predetermined thickness may be injection-molded into an arch structure or the like.

That is, the protective material 113 is made of a thermoplastic or thermosetting material in an arch structure or shape, such as hard and soft PVC adhesive or close contact configuration or PU injection molding, so as to prevent a small impact or pressure from the outside. By dispersing it around you, you can quickly recover and relieve pain.

Here, when the protective material 113 is composed of hard and soft PVC, the hard and soft PVC each has a thickness of 0.2 mm, but if it is thicker than 0.2 mm, the elasticity of the protective material 113 is lowered and the affected part Pain or discomfort is caused when in close contact with and, if it is thinner than 0.2 mm, there is a problem in that the degree of shock relaxation dispersing the shock from the outside is lowered.

Accordingly, the protective material 113 should have the critical significance of limiting the numerical values as described above.

The finishing pad 114 is a means for protecting the components by being configured with a predetermined thickness on the upper surface of the protective material 113, and has a structure in which a nonwoven fabric having a predetermined thickness is adhered to the upper surface of a soft polyurethane film having a thickness of 0.3 mm. Have.

Here, the polyurethane film has a thickness of 0.3mm, but if it is thicker than 0.3mm, the adhesion to the affected part decreases when the affected part has a curved surface, and if it is thinner than 0.3mm, the finishing pad 114 has a predetermined strength. It is difficult to maintain and is easily bent or fractured even in a predetermined bend, thereby reducing the adhesion to the affected part.

Accordingly, the finishing pad 114 is good to have the critical significance of the numerical limitation as described above.

Meanwhile, the finishing pad 114 has an arch shape through a thermoforming process using a molding mold after being adhered or attached to the upper surface of the protective material 113, and a reinforcing rib 114a having a shape such as a checkerboard, a spider web, and a grid pattern. ), it is possible to protect the affected part from external shocks through the pressure of the affected part or having durability against external shocks.

Therefore, according to the pad part 110, after the finishing pad 114 is adhered or attached to the protective material 113, it is possible to form a curved surface through thermoforming, and through this, even if the affected part has a curved surface, it is in close contact with the affected part. The pad 111 may be in close contact so that the thermal treatment function may be improved.

The heating unit 120 is a heating means that is embedded between the insulating material 112 and the protective material 113 of the pad unit 110 to generate heat so that a heating function is provided to the affected area to which the contact pad 111 is in close contact. It is located between the heat insulating material 112 and the protective material 113 of the part 110 to generate heat energy through electric energy, the heat structure (120A) and the heat structure (120A) and the protection material (113) is located between the heat structure ( It includes a thermal insulation structure (120B), etc. that prevents the heat energy generated from 120A) is released to the outside of the protective material (113).

The heating structure 120A has one surface facing the upper surface of the insulating material 112 of the pad unit 110 that is in close contact with the affected part, and a heating wire 121 formed on the back surface, so that the heat generated from the heating wire 121 is uniformly adhered to the pad 111 ) To be transferred toward the heat conduction foil 122, the heat insulating material 123 covering the back surface of the foil 122, and the heat insulating material 123 by being applied between one surface of the heat insulating material 123 and the back surface of the foil 122 ) Through the adhesion of the foil 122 to fix the wiring position of the heating wire 121 and at the same time, the heat of the heating wire 121 is quickly conducted and radiated toward the back surface of the foil 122. ).

The heating wire 121 is a means for generating heat by being wired on the back surface of the foil 122 and converting electrical energy into thermal energy, and may have a known heating element configuration such as carbon fiber, and thus a detailed description thereof will be omitted. .

Here, the heating wire 121 is supplied with electric energy for heat generation through a power supply battery (not shown) configured to be detached from the pad unit 110 under the control of the control unit 130.

The foil 122 performs a function of receiving heat through the heating wire 121 configured on the back surface and transferring it toward the adhesion pad 111.

The heat insulating material 123 is a heat insulating material that covers the back surface of the foil 122 and absorbs heat transmitted from the heat wire 121, and has a known sponge material having a thickness of 2 mm.

Here, the sponge has a thickness of 2mm, but if it is thicker than 2mm, the heat retention is increased too, and the heat conduction efficiency is rather lowered, and if it is thinner than 2mm, there is a problem that the feeling of a foreign body is lowered and the patient feels uncomfortable.

Accordingly, it is preferable that the thermal insulation material 123 has the critical significance of limiting the numerical values as described above.

The adhesive layer 124 for heat conduction is applied between one surface of the thermal insulation material 123 and the back surface of the foil 122 so that the wiring position of the heating wire 121 is fixed through the adhesion between the insulation material 112 and the foil 122 At the same time, as an adhesive means for quickly transferring the heat of the heating wire 121 to the entire rear surface of the foil 122, it is preferably formed of an adhesive for heat conduction.

Here, the adhesive for heat conduction is added and mixed with 30 to 40 parts by weight of a filler for heat conduction to 100 parts by weight of the polymer. The polymer is selected from the group consisting of a silicone resin, an epoxy resin, an acrylic resin, a mixture thereof, and a copolymer thereof. The heat conduction filler includes a first filler having a first average particle diameter, a second filler having a second average particle diameter, and a third filler having a third average particle diameter, and the first average particle diameter value is 10 to 30 μm, and the remaining average It is greater than the particle diameter values, and the value obtained by dividing the second average particle diameter value by the first average particle diameter value is 0.17 to 0.26, and the value obtained by dividing the third average particle diameter value by the first average particle diameter value is 0.09 to 0.11, and the first filler , The volume resistance of the second filler and the third filler is 10 ⁴ Ωcm or more, and the first filler, the second filler, and the third filler have an average value of short diameter/long diameter of 0.6 to 0.8, and the sum of the mass of the second filler/ The percentage of the sum of the mass of the first filler is 11 to 16, or the percentage of the sum of the mass of the third filler / the mass of the first filler is 4.2 to 5.2, and the first filler, the second filler, and the third filler are alumina (Al2O3), Group consisting of boron nitride (BN), aluminum nitride (AlN), silicon nitride (Si3N4), magnesia (MgO), beryllia (BeO), zinc oxide (ZnO), silicon carbide (SiC), zirconia (ZrO2), and mixtures thereof Is selected from.

On the other hand, the adhesive for thermal conduction includes 100 parts by mass of at least one type of polymer, 1.5 parts by mass or less of expanded graphite powder, a viscosity at 25° C. of 3000 mPa/s or more, and a temperature of 15° C. or more and 100° C. or less under atmospheric pressure. In the region, 10 parts by mass or more and 15 parts by mass or less of a liquid phosphoric acid ester, 50 parts by mass or more and 90 parts by mass or less of alumina having a BET specific surface area of 1 m 2 /g or more, expanded graphite powder and flame-retardant thermally conductive inorganic compound 100 excluding the alumina It may contain more than or equal to 150 parts by mass and less than or equal to 150 parts by mass.

Accordingly, according to the adhesive layer 124 for heat conduction, the heat of the heating wire 121 can be quickly transferred to the entire foil 122.

Therefore, according to the heating structure 120A, the heat generated from the heating wire 121 is radiated intensively to the affected part while being located inside the pad part 110 to improve the heating function.

The thermal insulation structure 120B is positioned between the heating structure 120A and the protective material 113 of the pad part 110 to prevent heat energy generated from the heating structure 120A from being released to the outside of the protective material 113. , One side faces the protective material 113 of the pad part 110 and the back face faces the one side of the heat protective material 113 of the heat-heating structure 120A, so that the heat conducted to the foil 122 of the heat-heating structure 120A is a protective material. A shielding aluminum plate 125 for preventing emission to the outside of the 113, and formed on the rear surface of the aluminum plate 125, and adhered to one surface of the thermal protection material 113 of the heating structure 120A through a separate adhesive layer It includes a padding 126 for keeping warmth to be positioned face-to-face in such a way as to absorb heat from the thermal protection material 113 and suppress the heat from being transmitted to the aluminum plate 125.

The aluminum plate 125 provides an insulating function to prevent heat of the foil 122 of the insulating structure 120B from being radiated to the outside of the insulating material 112 of the pad portion 110.

The padding 126 is a thermal insulation material configured in a manner such as adhesion to the back surface of the aluminum plate 125 to absorb heat diffused from the foil 122 to form a thermal insulation layer, and is a known synthetic resin such as a sponge. Since it may have a material, a detailed description will be omitted.

Therefore, according to the thermal insulation structure (120B), it is located between the thermal structure (120A) and the protective material 113 and prevents the heat energy generated from the thermal structure (120A) from being released to the outside of the thermal structure (120A). The effect of heat treatment can be maximized.

The control unit 130 is a means configured separately outside the pad unit 110 to control the operation of the heating unit 120, and a power supply battery (not shown) separately provided outside the pad unit 110 It includes a control panel (not shown) for controlling the heating operation of the heating wire 121 so that electric energy is converted into thermal energy by electrically connecting the heating wire 121 of the heating unit 120.

Here, the control panel (not shown) includes an input button that enables selection of an operation time, temperature, and various operation modes from a user, that is, a doctor or a nurse, and a display window to display a control state corresponding thereto. Since the heat-generating operation control of 121 can be controlled through a known program or algorithm, a detailed description thereof will be omitted.

That is, the control panel (not shown) is configured to be detachably attached to the bed of the patient being treated or a separate cover means surrounding the affected area, for example, through the power connection connector 121a connected to the heating wire 121 Energy can be supplied.

On the other hand, the control unit 130 is electrically connected to the pad unit 110 in which the heating unit 120 is embedded, detachably and detachably through a power connection connector 121a.

Therefore, according to the control unit 130, the pad unit 110 in which the heating unit 120 is built can be operated and used on a one-time basis (a period in which one patient uses during the wound treatment period after surgery and then discards it), and at this time, The heating unit 120 may be operated at any one of 45 degrees, 50, 55 degrees, 60 degrees, and 65 degrees according to the type of surgery and the type and use of the affected area, so that the thermal treatment effect can be maximized. .

In addition, as the pad unit 110 in which the heating unit 120 is embedded is used for a single use, convenience for hygiene may be provided.

In addition, as the pad unit 110 in which the heating unit 120 is embedded is used for a single use, the heating temperature control of the heating unit 120 has high reliability compared to the conventional heating pad device that has been aging due to repeated use. In this way, it is possible to enable thermal treatment using a precise temperature according to the patient's condition.

Hereinafter, an operation of the heating pad device according to a preferred embodiment of the present invention will be described.

First, the close contact pad 111 of the pad unit 110 is in close contact with the affected area where the heating function is to be provided.

Here, the pad part 110 may have a state in close contact with the affected part through a cover means such as a belly band surrounding the affected part of the patient.

Thereafter, a control signal is input from the user to the outside of the pad unit 110, that is, to a control panel (not shown) of the control unit 130 configured such as the cover means, and a power supply battery (not shown) according to the control of the control signal. Electric energy is supplied to the heating structure 120A of the heating unit 120 built in the pad unit 110 from the pad unit 110.

Thereafter, the electric energy supplied to the heating wire 121 of the heating structure 120A is converted into thermal energy, and heat is transferred to the affected area in close contact with the contact pad 111 of the pad part 110, and thermal treatment is performed through a poultice or the like. do.

Here, the heat generated from the heating wire 121 of the heating structure 120A is the pad part 110 through the configuration of the insulation structure 120B configured between the insulation material 112 of the pad part 110 and the heating structure 120A. It is possible to maximize the heat treatment effect using the heat of the heat insulating material 112, that is, the finish pad 114 is suppressed to be discharged to the outside of the heat structure (120A).

Therefore, according to the present invention, the heating unit 120 is built in the pad unit 110, and the heating unit 120 is one-time at any one of 45 degrees, 50, 55 degrees, 60 degrees, and 65 degrees (one patient After this surgery, it can be used during the wound treatment period and then discarded) so that it can be selectively used according to the type and purpose of the patient's surgery.

In addition, heat generated from the heating unit 120 may be radiated only through one surface of the pad unit 110, that is, a portion that is in close contact with the affected area, thereby suppressing waste of heat and improving the thermal treatment effect.

In addition, as the pad unit 110 in which the heating unit 120 is embedded is used as a one-time use, the heating temperature control of the heating unit 120 is repeatedly used countless times to have high reliability compared to the aging conventional heating pad device. , Accordingly, it is possible to enable precise thermal treatment according to the patient's condition.

In the above-described present invention, specific embodiments have been described, but various modifications may be implemented without departing from the scope of the present invention. Therefore, the scope of the invention should not be determined by the described embodiments, but should be defined by the claims and the equivalents of the claims.

Claims (7)

A pad portion 110 that has a predetermined thickness and area and is in close contact with the affected portion;
A heating pad device comprising a heating unit 120 that is built into the pad unit 110 and generates heat toward an affected area in close contact with the pad unit 110. The method of claim 1, wherein the pad portion 110,
A contact pad 111 having a material that is in close contact with the affected part;
An insulating material 112 configured on the upper surface of the contact pad 111 so as to minimize the feeling of foreign objects of the heating unit 120 when the contact pad 111 is in close contact with the affected area and protect the heat of the heating unit 120;
A protective material 113 configured on the upper surface of the edge portion of the adhesion pad 111 to protect the affected part from external impacts and provide a predetermined space in which the heating part 120 is configured between the heat insulating material 112; And
Heating pad device comprising a finishing pad 114 configured on the upper surface of the protective material 113 to protect the components. The method of claim 2,
The adhesion pad 111 is composed of a soft polyurethane film on the upper surface of the nonwoven fabric,
The insulating material 112 is composed of a sponge,
The protective material 113 is composed of hard PVC and soft PVC or PU,
Finishing pad 114 is a heating pad device, characterized in that the non-woven fabric is configured on the upper surface of the soft polyurethane film. The method of claim 2, wherein the heating unit 120,
A heating structure 120A positioned between the insulating material 112 and the protective material 113 of the pad unit 110 to generate thermal energy through electrical energy;
A heating pad device comprising a thermal insulation structure 120B positioned between the heating structure 120A and the protection material 113 to prevent heat energy generated from the heating structure 120A from being discharged to the outside of the protection material 113 . The method of claim 4, wherein the heating structure (120A),
For heat conduction, one side faces the top surface of the insulating material 112 of the pad unit 110 that is in close contact with the affected part, and a heating wire 121 is formed on the back surface so that the heat generated from the heat wire 121 is transferred toward the adhesion pad 111 Foil 122;
A heat insulating material 123 covering the back surface of the foil 122; And
It is applied between one side of the heat insulating material 123 and the back side of the foil 122 so that the wiring position of the heat wire 121 is fixed through the adhesion between the heat insulating material 123 and the foil 122 and at the same time Heating pad device, characterized in that it comprises an adhesive layer for heat conduction (124) to conduct heat toward the back surface of the foil (122). The method of claim 5, wherein the adhesive layer for heat conduction (124),
Formed by an adhesive for heat conduction,
The adhesive for heat conduction,
100 parts by mass of at least one type of polymer, 1.5 parts by mass or less of expanded graphite powder, a phosphate ester having a viscosity at 25°C of 3000 mPa/s or more and a liquid in a temperature range of 15°C or more and 100°C or less under atmospheric pressure 10 parts by mass or more and 15 parts by mass or less, 50 parts by mass or more and 90 parts by mass or less of alumina having a BET specific surface area of 1 m2/g or more, and 100 parts by mass or more and 150 parts by mass or less of the flame-retardant thermally conductive inorganic compound excluding the expanded graphite powder and the alumina Heating pad device comprising a. The method of claim 5, wherein the insulating structure (120B),
A shielding aluminum plate 125 with one side facing the protective material 113 and the back side facing one side of the thermal protective material 113 to prevent heat conducted to the foil 122 from being discharged to the outside of the protective material 113 and ;
A padding 126 for keeping warmth is formed on the back side of the aluminum plate 125 and is positioned to face one side of the heat protection material 113 to absorb heat from the heat protection material 113 and inhibit the heat from being transmitted to the aluminum plate 125. Heating pad device comprising a.

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