KR100847689B1 - Adhesion type heater - Google Patents

Abstract

An adhesive type heater is provided to detach or attach the assembly of an upper plate and a lower plate from or to a fixing unit. An adhesive type heater includes a lower plate(30), an insulated material(50), a surface heating body(10), an upper plate(20), and a fixing unit(40). The lower plate has a high electric insulating property and a high heat-resisting property. The insulated material having a high electric insulating property and a high heat-resisting property is located on the lower plate. The surface heating body is located on the insulated material and generates a heat. The upper plate is fixed to the lower plate so that the insulated material and the surface heating body are included in the upper plate. The upper plate has a safe net which is formed to have an air gap from the surface heating body on a heating plane of the surface heating body. The fixing unit fixes the assembly of the upper plate, the surface heating body and the upper plate on an installation plane. The upper plate has an outer wall which is contacted with an outer wall of the lower plate, and an inner wall which is formed to be lower than the outer wall of the upper plate. The inner wall is apart from the outer wall. The safe net is formed inside the inner wall of the upper plate.

Description

Attachment Heater {Adhesion type heater}

The present invention relates to an attachable heater, and more particularly, has a surface heating element as a heat generating material and is attached to the lower surface of the desk in parallel with the ground or at the back of the desk and installed vertically with the desk top plate. It relates to an attachable heater that warms the lower body of the lower thigh when sitting vertically attached to the desk, or warms the lower body of the lower thigh when washing the dishes by vertically attaching it vertically at the height of the knee to the kitchen sink.

In general, the planar heating element is a kind of heating device that generates electricity by applying electricity, which is not only sanitary because it does not pollute the air, but also has a merit of easy temperature control and no noise. It is spreading.

It is desired to develop an attached heater that is light, has excellent heat resistance and insulation, meets domestic and international safety standards, and is easily removable.

Accordingly, the present invention has been made in view of the above-described circumstances, and an object thereof is to provide an attachable heater that uses a surface heating element as a heat generating material, is light, has excellent heat resistance and insulation, and is easily removable.

In order to achieve the above object, the attachable heater according to the present invention includes: a lower plate made of an insulating and heat resistant material; A heat insulator positioned on the lower plate; A flexible planar heating element positioned on the heat insulator and generating heat; An upper plate fixedly coupled to the lower plate such that the heat insulating material and the planar heating element are placed inside, and having a safety net formed on the heating surface of the planar heating element with an air gap with the planar heating element; Characterized in that it is provided with a fixture for fixing the assembly of the top plate, heat insulating material, the surface heating element and the top plate to the installation surface.

The planar heating element is a polyester nonwoven fabric of the lower and upper; A polypropylene adhesive resin layer located between these nonwoven fabrics; Conductive carbon paper located inside the adhesive resin layer; It is preferable to comprise two copper foil electrodes electrically conductively connected to the said conductive carbon paper in the said adhesive resin layer.

Attachable heater according to the present invention, between the upper plate and the lower plate is fixed to the inner side of the one side which does not overlap with the heat insulating material and the planar heating element, is applied to a commercial AC power to convert into a DC power copper foil electrode of the planar heating element It further comprises a PCB substrate for applying.

The upper plate and the lower plate are provided with a screw fastening boss for screwing, and a hole is formed in a portion corresponding to the screw fastening boss on the non-heating surface of the planar heating element so that the planar heating element is screwed when the upper plate and the lower plate are joined. It is desirable to be.

The upper plate has an outer wall which is in contact with the outer wall of the lower plate when combined with the lower plate, and an inner wall having a predetermined distance inside the outer wall and having a lower height than the outer wall, wherein the safety net is formed inside the inner wall of the upper plate. It is preferable that a plurality of projections are formed at the end of the inner wall of the upper plate to press the planar heating element to maintain the tension in the planar heating element.

The lower plate has an outer wall which is in contact with the outer wall of the upper plate when combined with the upper plate, and an inner wall having a predetermined distance inside the outer wall and having a height higher than the outer wall, and a plurality of inner walls and the outer wall of the lower plate. It is preferable that the ventilation hole is formed.

The fastener is a base having a high performance adhesive tape attached to the bottom and a screw fastening hole is formed and fixed to the mounting surface; It is integrally formed perpendicular to the base and provided with a hanger formed with a hook jaw at the end thereof.

A base seating portion on which the base of the fixture is mounted is formed on the bottom of the lower plate, and a hook groove on which the locking jaw of the fixing portion is caught is formed on the top of the top plate.

The upper plate and the lower plate is made of PC-ABS Alloy, the heat insulating material is preferably made of E-fiberglass.

According to the present invention configured as described above, since the front part of the attachment heater is reinforced and triple-strengthened by the air gap (air insulation layer) and the safety net together with its own insulation layers (such as the adhesive resin layer and the nonwoven fabric) of the surface heating element, domestic and international insulation standards The upper and lower plates are made of PC-ABS Alloy and the insulation is made of E-fiberglass, so it can meet domestic and international heat resistance standards.

According to this invention comprised as mentioned above, it can fix easily to an installation surface by a fastener. In addition, the assembly of the upper plate and the lower plate can be easily attached to the fixture, and the assembly of the upper plate and the lower plate can be easily detached from the fixture.

Hereinafter, exemplary embodiments of the attachable heater according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a top view of a planar heating element applied to the attachment heater according to the present invention.

As shown in the figure, the planar heating element 10 applied to the present invention includes a heat generating surface 11, an electrode 12, and a heat-resistant insulating tape 13. Here, the heat-resistant insulating tape 13 is not an essential configuration, and is a configuration for attaching the planar heating element 10 to the upper plate when assembling the heater.

FIG. 2 is a cross-sectional view taken along line AA ′ in a state in which the heat resistant insulating tape is removed from the planar heating element shown in FIG. 1.

As shown in the figure, the planar heating element 10 applied to the present invention is composed of nonwoven fabrics 17 and 16, for example, polyester and lower and upper portions, respectively, between the nonwoven fabrics 17 and 16. For example, an adhesive resin layer 15 such as polypropylene is located. Here, the electrode 12 such as copper foil is positioned together with the conductive carbon paper 14 inside the adhesive resin layer 15. The copper foil electrode 12 is bonded to both ends of the conductive carbon paper 14 by, for example, a conductive adhesive.

The conductive carbon paper 14 may be formed of a film-like carbon thin film made of a printing precision technology of less than 1 micron in the process of applying a current, the carbon by applying a high resistance carbon to the heat by the carbon. Here, in the planar heating element 10, the surface corresponding to the conductive carbon paper 14 becomes the heat generating surface 11, and the outer portion of the copper foil electrode 12 becomes a non-heating surface.

The carbon planar heating element 10 configured as described above uniformly emits high temperature heat (surface temperature of approximately 70 ° C.) and high density far infrared rays. In addition, the carbon planar heating element is flexible and generates heat of high temperature although it is lighter than the heating board.

Next, the attachable heater according to the preferred embodiment of the present invention will be described with reference to FIGS. 3 to 13.

3 is a combined perspective view of the attachable heater according to the present invention, and FIG. 4 is an exploded perspective view of the attachable heater according to the present invention.

The attachment heater 100 according to the present invention includes an upper plate 20 and a lower plate 30, a planar heating element 10, a heat insulating material 50, a PCB substrate 60, and a fixture 40.

The heat insulating material 50 is positioned inside the lower plate 30, the planar heating element 10 is positioned on the heat insulating material 50, and the upper plate 20 is positioned on the planar heating element 10, and the upper plate 20 and the lower plate 30 are positioned. ) Is fixedly fastened by screwing, for example. In the upper plate 20 and the lower plate 30, the PCB substrate 60 is positioned inside one side (the right side in the drawing) which does not overlap with the heat insulating material 50 and the planar heating element 10. Here, the commercial alternating current power is applied to the PCB substrate 60 through the commercial alternating current power supply line 70, and the DC power converted by the power supply unit on the PCB substrate 60 is the planar heating element 10 through the power supply lines 74 and 72. It is applied to the copper foil electrode of the planar heating element 10 generates heat. The upper plate 20 and the lower plate 30 are made of a material having excellent heat resistance and electrical insulation, for example, made of PC-ABS Alloy or heat resistant ABS, and the heat insulating material 50 is made of a material having excellent heat resistance and electric insulation. It can be made of E-fiberglass or polyester.

In the drawing of the planar heating element 10, three holes 18 are formed at the right end and the left end, respectively. The hole 18 is a hole through which the screw penetrates when the upper plate 20 and the lower plate 30 are screwed in. The screw 18 of the upper plate 20 (see FIG. 5) and the lower plate 30 are screwed. Corresponds to the fastening boss 34. The left and right ends of the planar heating element 10 in which the holes 18 are formed are non-heating surfaces (i.e., portions formed only of the nonwoven fabric and the adhesive resin layer). In addition, three holes may be formed in the right end part and the left end part similarly in the heat insulating material 50, and this hole is a hole through which a screw passes at the time of screwing of the upper board 20 and the lower board 30, and the upper board ( Corresponds to the screwing boss 26 of 20 and the screwing boss 34 of the lower plate 30.

FIG. 5 is a plan view of a state in which a top board shown in FIG. 4 is turned upside down and a PCB board is mounted.

As shown in the figure, the upper plate 20 has an outer wall 28a to 28d that abuts against the outer wall of the lower plate 30 (see 36a to 36d in FIG. 6) when the lower plate 30 is engaged with the outer wall ( The inner walls 20a to 20d having a predetermined interval inside the 28a to 28d and having a lower height than the outer walls 28a to 28d are provided.

A plurality of protrusions 24 are formed inwardly at the ends of the outer walls 28c and 28d, and the protrusions 24 are formed on the outer walls 36c and 36d of the lower plate 30 at the time of engagement with the lower plate 30. 6, 7, and 10 (see Figs. 6, 7 and 10) to ensure a firm coupling of the upper plate 20 and the lower plate 30.

In the inner walls 20a to 20d of the upper plate 20, the flesh 21a is formed at regular intervals in the horizontal direction and the vertical direction to form a square grid, and a square hole 21b penetrates inside the grid. The square hole 21b serves as a passage through which heat and far-infrared rays emitted from the planar heating element 10 are discharged to the outside.

The rectangular grid formed by the flesh 21a and the hole 21b serves as the safety net 21. That is, the safety net 21 is spaced apart from the planar heating element 10 by the height of the inner walls 20c and 20d of the upper plate 20, as can be seen from Figs. 9A and 9B. An air insulation layer (air gap) is formed between the planar heating elements 10. The air insulation layer is here 10 to 30 mm, preferably 15 to 20 mm, more preferably 16 to 18 mm.

The outer periphery between the outer wall (28a ~ 28d) and the inner wall (20a ~ 20d) of the upper plate 20 is formed with a plurality of screw fastening boss 25 for directly screwing the upper plate and the lower plate, corresponding to the lower plate A plurality of screwing holes 33 are formed in the outer circumference of the 30.

Three screwing bosses 26 are formed between the outer walls 28a to 28d and the inner walls 20a to 20d of the upper plate 20 adjacent to the inner walls 20a and 20b on the left and right sides with reference to FIG. 5. Although this screw fastening boss 26 penetrates the hole 18 of the surface heating element 10, it is screwed to the screw fastening boss 34 of the lower board 30. As shown in FIG.

The PCB substrate 60 is installed between the outer wall 28b and the inner wall 20b of the upper plate 20, and the plurality of light emitting diodes and a plurality of buttons installed on the PCB substrate 60 are exposed on the outer wall 28d. A hole is formed, and the outer wall 28c is formed with a hole through which a commercial AC power supply line 70 connected to the PCB substrate 60 passes.

Two locking grooves 23 are formed on the upper surface of the outer wall 28c side of the upper plate 20, and one locking groove 23 is formed on the upper surface of the outer wall 28a side and the upper surface of the outer wall 28b, respectively. Formed. The catching groove 23 is a part of the catching jaw of the fixture 40 when the attachable heater 100 is attached to, for example, a desk.

A plurality of protrusions 22 are formed at the ends of the inner walls 20a to 20d of the upper plate 20. As shown in FIGS. 9A and 10, the protrusions 22 press the planar heating element 10 at the time of joining to maintain the planar heating element 10 in a taut state.

6 is a perspective view of the lower plate illustrated in FIG. 4, and FIG. 7 is an enlarged perspective view of a portion D shown in FIG. 6.

As shown in the drawings, the lower plate 30 has a wide bottom surface 31 formed therein, and inner walls 30a to 30d are formed on the outer periphery of the bottom surface 31, and the inner wall ( Outside walls 30a to 30d are provided with outer walls 36a to 36d having a predetermined interval and having a height lower than that of the inner walls 30a to 30d. On the outer side of the outer wall (36a ~ 36d) is formed a jaw that the ends of the outer wall (28a ~ 28d) of the upper plate 20 abuts.

A plurality of protrusions 35 are formed at the ends of the inner walls 30a to 30d of the lower plate 30. This protrusion 35 presses the heat insulating material 50 at the time of joining as shown in FIGS. 9A and 10 so that the heat insulating material 50 is firmly fixed.

A flesh 37 is formed between the inner walls 30c and 30d and the outer walls 36c and 36d of the lower plate 30, and a hole 38 is formed between the flesh 37. The planar heating element 10 may be collected at the pressed portion, thereby increasing the amount of heat generated. Therefore, in the present invention, by forming the air vent by the hole 30 of the lower plate 30, the heat collected portion cools the heat.

As can be seen from the lower plate 30, as shown in Figure 9a, 9b and 10, since the inner wall (30a ~ 30d) has a constant height and the heat insulating material 50 is located on the inner wall (30a ~ 30d), A constant space is formed between the heat insulating material 50 and the bottom surface 31, thereby preventing overheating of the lower plate 30.

Two fastener base seating portions 32 are formed on the bottom surface of the outer wall 36c side of the lower plate 30, and one fastener base on the bottom surface of the outer wall 36a side and the outer wall 36b side of the lower plate 30, respectively. The seating portion 32 is formed. The fixture base seating portion 32 is a portion where the base of the fixture 40 is seated when the attachment heater 100 is attached to, for example, a desk.

FIG. 8 is a perspective view of the fixture shown in FIG. 3. FIG. As shown in the figure, the fastener 40 includes a base 43, a support protrusion 42, and the engaging table 41.

The base 43 is a portion in contact with the fixture base seating portion 32 of the lower plate 30, the square hole 44 is formed to increase the elasticity of the hanger 41 when engaged with the attachment heater 100. A plurality of screw holes 45 are formed so as to be pre-screwed in a place where the attachable heater 100 is to be installed. Here, a high performance adhesive tape is formed on the bottom surface of the base 43. The support protrusion 42 is a portion for supporting the outer wall of the lower plate 30 and the upper plate 20 so as not to be separated, the hanger 41 is in contact with the outer wall of the lower plate 30 and the upper plate 20 and at the end thereof. The formed locking jaw 41a is caught by the hook groove 23 of the upper plate 20.

After the four fasteners 40 configured as described above are coupled to the assembled heater 100, that is, the base 43 of the fastener 40 is attached to each of the four fasteners 40. After positioning on the seating portion 32 and the hooking jaw 41a is applied to the hook groove 23 of the upper plate 23 by force, the high-performance adhesive tape formed on the bottom surface of the base 43 of the fixture 40 is used. The attachable heater 100 can be installed at a desired position. In addition, for more firm installation of the attachment heater 100 may be screwed through the screw hole 45 formed in the base 43 of the fixture (40).

An example of attaching the attachable heater 100 to the bottom of the desk 200 is illustrated in FIGS. 11 and 12.

13 is an electrical circuit block diagram of the attachable heater according to the present invention. As shown in the figure, the electric circuit of the attached heater includes a power supply unit 61, a control unit 62, a switch 63, a communication module 64, an operation switch 65, And a time setting switch 66, a connector 67, and display portions 68a to 68e. In addition, each of the electric circuits of the attachable heater has one end connected to the switch 63 and the other end of the planar heating element 10. Power lines 72 and 74 connected to the first and second electrodes 12a and 12b (that is, the copper foil electrode 12), and one of the power lines 74 is provided with a thermostat 76. And the thermostat 76 is fixed on the heat generating surface of the planar heating element 10. In addition, the electric circuit of the attachable heater has a remote controller 90 connected to the connector 67 via a cable 92. It may include.

The power supply unit 61 is installed on the PCB substrate 60 and inputs power lines 72 and 74 to the planar heating element 10 as it is, for example, the commercial AC power supply 110V or 220V input through the commercial AC power supply line 70. Or a low AC voltage is supplied to the planar heating element 10 through the power lines 72 and 74 by supplying a commercial AC power supply 110V or 220V, for example, and the control unit 62 provided on the PCB substrate 60. ) And the display units 68a to 68e.

The control unit 62 controls the power supplied to the planar heating element 63 in accordance with a user operation input through the operation switch 65 and the time switch 66 (or according to a user operation input through the remote controller). And control operations such as display control of the display units 68a to 68d.

Here, the control unit 62 controls the power supply unit 61 when the "strong mode" operation of the operation switch 65 is input, for example, a commercial AC power supply 110V or 220V input through the commercial AC power supply line 70. By supplying the planar heating element 10 as it is through the power lines 72 and 74, the surface temperature of the planar heating element 10 is, for example, approximately 100 ° C to 80 ° C, preferably 90 ° C. In addition, the control unit 62 controls the power supply unit 61 when the "weak mode" operation of the operation switch 65 is input, for example, a commercial AC power supply 110V or 220V input through the commercial AC power supply line 70. The surface temperature of the planar heating element 10 is, for example, about 70 ° C. to 50 ° C., preferably 60 ° C. by supplying a power supply having a voltage drop to the planar heating element 10 through the power lines 72 and 74. To heat.

The switch 63 switches the power supplied from the power supply unit 61 to the surface heating element 10 through the power lines 72 and 74 under the control of the controller 62. The communication module 64 transmits a signal from the remote controller 90 connected through the connector 67 to the controller 62.

The operation switch 65 includes an on / off switch for supplying and cutting off power to the planar heating element 10 and a strong / weak switch for setting the temperature of the planar heating element 10. These on / off switches and strong / weak switches can be implemented with one toggle switch. In other words, press the toggle switch first to switch on, second press to strong switch, third press to weak switch, and fourth press to switch off.

The time setting switch 66 is a switch for setting the heat generation time of the planar heating element 10. The time setting switch 66 may be composed of one toggle switch, the first time setting the setting time is set to 15 minutes, for example, the second time setting the setting time is set to 30 minutes, for example, Press to set the setting time to 1 hour, for example, and press the fourth time to clear the time setting.

The display units 68a to 68e may include, for example, six light emitting diodes. That is, a light emitting diode 68a for displaying on / off according to the on / off operation of the operation switch 65; A light emitting diode 68b for displaying the strong mode according to the " strong mode " operation of the operation switch 65; A light emitting diode 68c for displaying the weak mode in accordance with the "weak mode" operation of the operation switch 65; A light emitting diode 68d for displaying a first time (for example, 15 minutes) setting according to the first time setting of the time setting switch 64; A light emitting diode 68e for displaying a second time setting (for example, 30 minutes) according to the second time setting of the time setting switch 64; The light emitting diode 68f may be configured to display a third time (for example, one hour) setting according to the third time setting of the time setting switch 64.

The thermostat 76 installed in the planar heating element 10 automatically detects overheating of the planar heating element 10 and automatically cuts off the power.

The remote controller 90 is provided with the same operation switch and time setting switch as the operation switch 65 and the time setting switch 66 installed on the PCB board 60, and are connected to the connector 67 through the cable 92. It is supposed to be connected. For example, when the attachable heater is installed under the desk as shown in FIG. 12, since it is inconvenient for the user to operate the operation switch 65 and the time setting switch 66 installed on the PCB board 60, the remote controller 90 is used. Place it on a convenient place such as on a desk.

As described above, according to the present invention, it is suitable as a personal auxiliary heating device for warming the lower body below the thigh, which is attached to the ground horizontally under the desk in the office, reading room, general home, or the like to feel the cold most of the body. In addition, it may be used by attaching it vertically to the surface of the screening plate under the desk. In addition, it can also be used as a lower body heating and dishcloth dryer when washing dishes by vertically attached to the sink of the kitchen. Far infrared rays and negative ions are released, so there is a bactericidal effect.

According to the attached heater of the present invention, there is no need to excessively warm the room air and unlike the general heater does not burn oxygen can provide a comfortable environment. In addition, if the lower body is warm, even if the room temperature is lowered by 5 ~ 10 ℃ do not feel cold at all can significantly reduce the heating cost.

According to the attachment heater of the present invention, since it is attached to existing furniture such as a desk or a sink, it is not necessary to occupy a separate space. Also, unlike general electric heaters, there is no danger of fire, burns or burning clothes.

According to the attached heater of the present invention, it can be easily inserted into a fastener attached with a high-performance adhesive tape or a screw, and can be easily detached, and can be moved and used wherever the fastener is attached.

On the other hand, the present invention is not limited to the above specific embodiments, but can be modified and modified in various ways without departing from the gist of the present invention. If such modifications and variations fall within the scope of the appended claims, it will be apparent that they are included in the present invention.

1 is a top view of a planar heating element applied to the attachment heater according to the present invention.

FIG. 2 is a cross-sectional view taken along the line A-A 'of the planar heating element shown in FIG.

3 is a combined perspective view of the attachable heater according to the present invention.

4 is an exploded perspective view of the attachable heater according to the present invention.

FIG. 5 is a plan view of a state in which a top board shown in FIG. 4 is turned upside down and a PCB board is mounted.

6 is a perspective view of the lower plate shown in FIG. 4.

FIG. 7 is an enlarged perspective view of a portion D shown in FIG. 6.

FIG. 8 is a perspective view of the fixture shown in FIG. 3. FIG.

9A is a cross-sectional view taken along line BB ′ of FIG. 3.

9B is an exploded cross-sectional view taken along the line BB ′ of FIG. 3.

10 is a cross-sectional view taken along the line CC ′ of FIG. 3.

11 and 12 are views for explaining the case of attaching the attachment type heater according to the invention on the bottom of the desk.

13 is an electrical circuit block diagram of the attachable heater according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10: planar heating element 20: top plate

30: lower plate 40: fixture

50: insulation 60: PCB substrate

70: power line

Claims (10)

A lower plate made of a material having excellent electrical insulation and heat resistance; A heat insulating material having excellent electrical insulation and heat resistance on the lower plate; A flexible planar heating element positioned on the heat insulator and generating heat; An upper plate fixedly coupled to the lower plate such that the heat insulating material and the planar heating element are placed inside, and having a safety net formed on the heating surface of the planar heating element with an air gap with the planar heating element; It is configured to include a fixture for fixing the assembly of the top plate, heat insulating material, the surface heating element and the top plate, The upper plate has an outer wall which is in contact with the outer wall of the lower plate when combined with the lower plate, and an inner wall having a predetermined interval inside the outer wall and having a height lower than that of the outer wall. The safety net is formed in the inner wall of the upper plate, At the end of the inner wall of the upper plate is formed a plurality of protrusions for pressing the planar heating element to maintain the tension in the planar heating element, The lower plate has an outer wall that is in contact with the outer wall of the upper plate when combined with the upper plate, and an inner wall formed at a height higher than the outer wall at a predetermined interval inside the outer wall, Attached heater, characterized in that a plurality of ventilation holes are formed between the inner wall and the outer wall of the lower plate. The method of claim 1, The planar heating element is a polyester nonwoven fabric of the lower and upper; A polypropylene adhesive resin layer located between these nonwoven fabrics; Conductive carbon paper located inside the adhesive resin layer; An adhesive heater comprising two copper foil electrodes conductively connected to the conductive carbon paper inside the adhesive resin layer. The method of claim 2, Further comprising a PCB substrate fixedly installed inside the one side portion that does not overlap with the heat insulating material and the planar heating element between the upper plate and the lower plate, and receives a commercial AC power to apply the operating power to the copper foil of the planar heating element. Attachable heater characterized in that. The method of claim 1, The upper plate and the lower plate are provided with a screw fastening boss for screwing, and a hole is formed in a portion corresponding to the screw fastening boss on the non-heating surface of the planar heating element so that the planar heating element is screwed when the upper plate and the lower plate are joined. Attachable heater, characterized in that. delete delete The method of claim 1, The fastener is a base having a high performance adhesive tape attached to the bottom and a screw fastening hole is formed and fixed to the mounting surface; Attached heater characterized in that it is integrally formed perpendicular to the base and having a hanger is formed on the end of the hook. The method of claim 7, wherein Attached heater, characterized in that the base seating portion is formed on the bottom of the lower plate is seated on the base of the fastener, and the upper surface of the upper plate is formed with a hook groove for catching the locking projection. The method of claim 1, The upper plate and the lower plate is attached heater, characterized in that made of PC-ABS Alloy or heat-resistant ABS. The method of claim 1, The insulation is an attachment heater, characterized in that consisting of E-fiberglass or polyester.

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