JPH10267305A - Panel heater and panel heater device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thin, light weight and flat-plate type panel heater capable of preventing overheating at a foot heating operation. SOLUTION: This panel heater 1 is comprised of a sheet-like heater main body 3 in which a resistance heat generating member having a positive temperature coefficient characteristic is printed on an electrical insulating film and an outer surface of the resistance heat generating member is covered by another electrical insulating film, at least a pair of male and female connectors 9, 11 each of which is electrically connected to the resistance heat generating member, a heat insulating member arranged at another electrical insulating film of the heater main body 3, a cylindrical case having a bottom part for use in storing heat insulating material and the heater main body 3 and further having one surface of the heater main body opened at an opposite side of the heat insulating material, and an outer frame 5 removably fitted at an outer circumferential edge of the case for holding both an outer bottom surface of the case and one surface of the heater main body at its rear surface side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thin and lightweight flat panel heater and a panel heater device suitable for auxiliary foot heating or the like attached to the lower surface of a customer counter of a sushi restaurant or the like.

[0002]

2. Description of the Related Art In recent years, there has been known a foot auxiliary heating device for heating a knee, a foot, and the like of a person when the person is seated at a customer counter of a sushi restaurant or the like. As an example of the auxiliary heating device, a device incorporating a code heater such as a nichrome wire as a heating element has been put to practical use.

[0003]

However, in such a conventional auxiliary leg heater, a cord heater is used as a heating element, so that the entire device becomes thicker, more heavy, and consumes more power. There is a problem that.

Further, the temperature controller can be omitted by setting the heat generation temperature of the code heater to a predetermined value in advance, but since the temperature of the code heater rises to the predetermined value despite the relatively high ambient temperature. In some cases, an object to be heated, such as a person's feet, may be overheated.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a thin and lightweight flat panel heater and a panel heater device capable of preventing overheating of step heating. It is in.

[0006]

According to a first aspect of the present invention, there is provided a panel heater in which a resistance heating element having a positive temperature coefficient characteristic is printed on an electric insulation film, and the outer surface of the resistance heating element is covered with another electric insulation film. A sheet-shaped heater main body, at least a pair of male and female connectors electrically connected to the resistance heating element, and a heat insulating material provided on the other electric insulating film side of the heater main body. A bottomed cylindrical case that houses a heat insulating material and the heater body and has an opening on one surface side of the heater body opposite to the heat insulating material, and is detachably fitted to the outer peripheral edge of the case. hand,
An outer frame for sandwiching an outer bottom surface of the case and an outer peripheral edge of one side of the heater body on the back surface side of the outer bottom surface is provided.

Here, the positive temperature coefficient (Positive Temperature Coefficient)
Coefficient (hereinafter, referred to as PTC) characteristic is a characteristic in which when a resistance heating element rises to a predetermined temperature, its electric resistance value sharply increases and is kept constant at a predetermined temperature to suppress the further increase in temperature. A characteristic in which the maximum temperature can be variously controlled in advance by appropriately adjusting the composition of the heating element.

According to the present invention, a resistance heating element is printed on a thin electric insulating film by thick film printing or the like, and the outer surface of the resistance heating element is covered with another thin electric insulating film to form a heater body into a sheet shape. Since it is formed, the thickness of the heater main body can be reduced and the weight can be reduced. Therefore, it is possible to reduce the thickness and weight of the entire panel heater.

Further, since the resistance heating element has the PTC characteristic, when the resistance heating element reaches a predetermined maximum temperature due to a high ambient temperature, a further rise in temperature is suppressed.
For this reason, overheating of the object to be heated, such as a foot, can be prevented beforehand and certainly, a temperature controller can be omitted, and power can be saved.

Since the back side of the electrical insulation film on which the resistance heating element is printed faces the opening side of the case, heat generated by the resistance heating element can be radiated from the opening end of the case with high efficiency. Heating efficiency can be improved. Moreover, since it is radiant heating, cold draft can be prevented.

Further, since the outer surface of the resistance heating element printed on the back of the heat radiation surface of the electric insulation film facing the radiation opening of the case is covered with another electric insulation film, the electric insulation film for covering and the resistance heat generation film are covered. Since a minute air layer is formed between the body and the heat insulation layer, and a heat insulating material is provided on the side of the electric insulating film for coating, the heat storage property and the retention property in the case are improved. Can be improved, and the heat radiation property when radiation is radiated from the radiation opening to the outside, that is, the heating property can be improved.

A panel heater according to a second aspect of the present invention is characterized in that the electrical insulating film is formed by implanting a flock directly on the back surface of the printed surface of the resistance heating element.

According to the present invention, in addition to the operation of the first aspect of the present invention, since the resistance heating element is directly implanted on the back surface of the printed surface of the thin electric insulating film, the hair implantation is performed by:
The heat generated by the resistance heating element can be transferred with high efficiency.
Moreover, since the flocked surface faces the radiation opening of the case, the heat radiation efficiency when radiation is radiated from the radiation opening to the outside, that is, the heating efficiency of the feet and the like can be improved.

Further, since the flocks are implanted directly on the heat radiating surface of the electrical insulating film, both heat storage and heat retention can be improved, and the skin when touching the heat radiating surface is touched. Can be improved.

A panel heater according to a third aspect of the present invention is characterized in that the panel heater has a plurality of resistance heating elements, and these are electrically connected in parallel to the respective male and female connectors.

According to the present invention, in addition to the function of the first or second aspect of the present invention, even if one of the plurality of resistance heating elements fails, the other healthy resistance heating elements are male and female. Since each pair of connectors is electrically connected in parallel, heating can be continued by this healthy resistance heating element.

According to a fourth aspect of the present invention, in the panel heater, the male and female connectors are electrically connected in series to each other by a lead wire, and electrically connected in parallel to the resistance heating element via the lead wire. It is characterized by having been done.

According to the present invention, the same operation and effect as those of the third aspect are obtained.

A panel heater according to a fifth aspect of the present invention is characterized in that a pair of male and female connectors have a plurality of pairs.

According to this invention, in addition to the function of any one of the first to fourth aspects of the present invention, since a plurality of pairs of male and female connectors are provided, even if one of them fails, Heating can be continued by the other pair of connectors.

Further, by electrically connecting a plurality of resistance heating elements to the plurality of pairs of connectors, the heat generation pattern of these resistance heating elements can be appropriately set.

According to a sixth aspect of the present invention, in the panel heater, the outer frame includes:
A housing space for housing a lead wire for connecting the male and female connectors in series outside the case is provided.

According to the present invention, in addition to the function of any one of the first to fifth aspects of the present invention, a lead wire for connecting each pair of male and female connectors is provided outside the case in which the resistance heating element is housed. Since the lead wire passes through the housing space of the outer frame, the electrical and thermal insulation of the lead wire can be improved.

According to a seventh aspect of the present invention, in the panel heater, the outer frame comprises:
A corner portion detachably fitted to the outer peripheral edge of each corner of the case, and an intermediate portion detachably fitted to the outer peripheral edge of the case between each of the corners. Features.

According to this invention, in addition to the function of any one of the first to sixth aspects of the present invention, the outer frame is divided into a corner portion and an intermediate portion. It can be easily fitted to the outer portion, and the workability of the assembling work can be improved.

According to an eighth aspect of the present invention, there is provided a panel heater device, comprising: the panel heater according to any one of the first to seventh aspects; and an elastic flat plate-shaped main body fixed to a mounting wall surface of the panel heater. A pair of outer frame portions facing each other in the width direction of the panel heater are respectively integrally coupled to elastically open U-shaped open ends which are removably fitted to each other. And a mounting device in which one of the U-shaped openings is made shallower than the other.

According to the present invention, in addition to the function of the invention described in any one of claims 1 to 7, first, claims 1 to 7
7. One end in the width direction of the panel heater according to any one of 7 is fitted into the U-shaped opening where the U-shaped opening of the attachment is deeper, and then the other end in the width direction of the panel heater is connected to the other end. The panel heater can be easily and quickly fixed to the mounting device by being strongly pushed inward from the outer surface into the other end of the U-shaped opening.

According to a ninth aspect of the present invention, a plurality of panel heaters according to any one of the first to seventh aspects are arranged in a row, and a pair of adjacent male and female connectors are connected to each other. It is characterized by the following.

According to this invention, the plurality of panel heaters can be mechanically connected to each other by connecting the adjacent male and female connectors of the plurality of panel heaters according to any one of the first to seventh aspects. At the same time, the resistance heating elements of each panel heater can be electrically connected to each other. That is, mechanical and electrical connection between a plurality of panel heaters can be easily and quickly performed.

[0030]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIG. In these figures, the same or corresponding parts are denoted by the same reference numerals.

FIG. 1 is a front view of a panel heater 1 according to a first embodiment of the present invention, and FIG. 2 is an end view showing a cutaway portion along the line II-II of FIG. In these figures, a panel heater 1 contains a heater main body 3 and a heat insulating material 4 in a case 2 having a bottomed flat rectangular tube shape made of, for example, ABS synthetic resin or steel.

As shown in FIG. 3, the heater body 3 is made of PET.
PTC (Positive Temperfatur) is provided on one surface (the lower surface in FIG. 3) of the base film 3a made of an electrically insulating film such as
The resistance heating element 3b is formed by printing and firing a paste of the resistance heating element 3b having eCoefficient (positive temperature coefficient) characteristics by thick film printing or the like.

The PTC characteristic has a characteristic that when the temperature rises, the electric resistance increases and keeps the temperature constant and suppresses the temperature rise further. The temperature is adjusted by appropriately adjusting the composition of the resistance heating element 3b. Can be adjusted. For this reason, since the heating value of the resistance heating element 3b is adjusted according to the ambient temperature, overheating can be prevented.

The lower surface of the resistance heating element 3b in the figure is covered with another electric insulating film 3c made of PET or the like, and the outer peripheral portion of the electric insulating film 3c for covering is covered with the required adhesive 3d to the outside of the base film 3a. It is fixed to the periphery.

For this reason, an air layer 3e having a minute gap is formed between the resistance heating element 3b and the electric insulating film 3c, and the air layer 3e has a heat insulating effect.

A flocking is directly planted on the back surface (the upper surface in FIG. 2) of the printing surface of the resistance heating element 3b of the base film 3a to form a flocking surface 3f. This flocking may or may not be colored appropriately.

The heater main body 3 thus configured is shown in FIG.
As shown in FIG. 2, the case 2 is placed and housed on the inner bottom surface of the case 2 via a heat insulating material 4 formed in a flat shape of foamed polyethylene or the like. An outer frame 5 in the form of a square frame made of ABS resin or the like is detachably fitted to the outside.

As shown in FIG. 1, the outer frame 5 has a pair of male and female corners 6a and 6b fitted to the corners of the case 2, and
FIG. 1 shows that the corners 6c and 6d at the lower part in FIG. 1 and the respective corners 6a to 6d are arranged side by side in the longitudinal direction.
It comprises a pair of middle middle and bottom long middle parts 7a and 7b, and a pair of left and right middle middle parts 8a and 8b in FIG.

FIG. 4 is an enlarged front view of the male corner portion 6a, FIG. 5 (a) is a left side view thereof, and FIG. 5 (b) is a right side view thereof. Built-in,
The male connector 9 has a distal end projecting from the left side wall in FIG. 4 so as to protrude outward in the horizontal direction.

The male corner portion 6a has an upper outward locking claw 10a projecting outward in the horizontal direction from the upper right end in FIG. 4, and a lower outward locking claw 10b projecting vertically downward from the lower left end in FIG. Are protruded integrally.

The male connector 9 of the male corner 6a is replaced with the female connector 11 shown in FIG. 1 to form the female corner 6b at the upper right end in FIG.
The female connector 11 has a distal end slightly projecting outward, is detachably connected to another male connector 9, and is electrically connected via a lead wire 12.

FIG. 6 shows a pair of right and left corner portions 6 at the lower end in FIG.
FIG. 7 is an enlarged front view of FIGS. 6c and 6d, and FIG. 7 is a left side view thereof. The corners 6c and 6d respectively open the upper end and the left end in FIG. An upper outward locking claw 13a projecting vertically outward, and a lower outward locking claw 13b projecting horizontally outward from the lower opening end
And protrude integrally from each other. These corners 6a
6d are integrally formed by, for example, molding.

FIG. 8 shows a longitudinal and short intermediate portion 7a of the outer frame 5,
FIG. 7 is an enlarged perspective view of axial ends of 7b, 8a, and 8b.
And the U-shaped front ends 14a and 14b are integrally connected. The lower ends of the outer peripheral edge of the case 2 and the heater main body 3 are formed by the U-shaped front ends 14a and 14b as shown in FIG.
And the flocked surface 3f.

The main body 14 has a pair of upper and lower partitions 14c and 14d in FIG. 6 integrally protruding therein, as shown in FIG. 6, and abuts against the side wall of the case 2 by the partitions 14c and 14d. In addition, positioning for external fitting to the outer peripheral portion is performed, and a heat insulating space 14e is formed outside the resistance heating element 3b.

Further, the main body 14 has the outward locking claws 10a, 1 of the corners 6a to 6d at both ends in the axial direction.
0b, 13a, and 13b are provided with a square engaging hole 14f for removably engaging the outward locking stepped portion, and each of the corner portions 6a to 6d of the outer frame 5 and each of the long and short intermediate portions 7a. To 8b are detachably connected. These long and short intermediate portions 7a to 8b can be formed by, for example, extrusion molding, so that manufacturing costs can be reduced.
It should be noted that a pair of upper and lower corner portions 6a and 6c, 6b and 6 in FIG.
c may be integrally formed and each may be formed in a U-shape.

FIG. 9 is a partially cutaway end view of the cut portion taken along the line IX-IX of FIG. 1. This is a pair of two wires in the space 14e of the longitudinal middle portion 7a at the top of the outer frame 5 in FIG. The state where the lead wire 12 is passed is shown.

FIG. 10 shows the structure of a pair of electrodes 15 and 16 printed on the base film 3a together with the resistance heating element 3b.
While each is electrically connected to the lead 12 of the wire,
The other end is branched into a plurality of comb-like portions 15a and 16a. Each of these comb-tooth-like portions 15a and 16a is
In FIG. 3B, the resistance heating elements 3b are alternately arranged in the horizontal direction in the figure to substantially uniformly supply electricity to the resistance heating elements 3b so as to generate heat evenly.

FIG. 11 shows a state in which the female connector 18 of the power cord 17 is connected to the male connector 9 shown in FIG. 10 and power is supplied from the power plug 19 to the electrodes 15 and 16. May be provided with a power supply on / off switch and an overcurrent prevention fuse (not shown).

Therefore, when an on / off switch (not shown) of the power cord 17 is turned on, the power from the cord 17 is not supplied with overcurrent protection fuses (not shown), female and male connectors 18, 9, lead wires 12, comb teeth. Electric current is supplied to the resistance heating element 3a through the shape electrodes 15 and 16. Therefore, the resistance heating element 3 generates heat, is radiated outward from the flocked surface 3f, and heats a person's feet, knees, feet, and the like.

When the temperature of the resistance heating element 3b at the time of heating rises to a predetermined maximum temperature, the temperature becomes substantially constant due to the PTC characteristic of the resistance heating element 3b, and further heating is prevented. Therefore, when the ambient temperature is high, the amount of heat generated by the resistance heating element 3b decreases in accordance with the temperature.

For this reason, since a predetermined maximum temperature can be kept constant without providing a temperature controller, overheating can be prevented and power can be saved.

Further, the heater body 3 is formed in a sheet shape by covering the outer surface of the resistance heating element 3b on one surface of the base film 3a of the thin electric insulating film with another thin electric insulating film 3c. The thickness can be reduced and the weight can be reduced.

Further, the outer surface of the resistance heating element 3b printed on the back surface of the heat radiation surface of the base film 3a facing the radiation opening 2a of the case body 3 was covered with another electric insulating film 3c. Since a minute air layer 3e is formed between the insulating film 3c and the resistance heating element 3b to form a heat insulating layer, the heat insulating material 4 is provided on the side of the electric insulating film 3c for coating. In addition, it is possible to improve the heat storage property and the retention property in the case 2 and to improve the heat radiation property when the radiation is radiated from the radiation opening 2a to the outside, that is, the heating property.

Also, since the flock 3f is directly implanted on the back side of the printed surface of the thin electrical insulating film 3a on which the resistance heating element 3b is printed, the heat generated by the resistance heating element 3b is transferred to the flock 3f with high efficiency. Can be. Moreover, this flocked surface 3f
Faces the radiation opening 2a of the case 2, so that the heat radiation efficiency when radiated from the radiation opening 2a to the outside,
That is, the heating efficiency at the feet and the like can be improved.

Further, since the flock 3f is implanted directly on the heat radiating surface of the electric insulating film 3a, both heat storage and heat retention can be improved, and the heat radiating surface when the heat radiating surface is touched is improved. The texture can be improved.

FIG. 12 shows a panel heater 1 constructed as described above and a mounting wall 2 such as a lower surface of a customer counter of a sushi restaurant or the like.
A mounting tool 21 made of an elastic ABS resin or the like to be mounted on the mounting member 21
The side view is shown.

The mounting tool 21 has a width (short width) of the panel heater 1.
A plurality of insertion holes 21b for passing wood screws and the like are formed in a rectangular flat plate 21a that is long in the direction, and a pair of left and right U-shaped portions 21c and 21d are formed at both longitudinal ends of the flat plate 21a. They are integrally coupled so as to face each other inward.

One (right side in FIG. 12) U-shaped portion 21c
The U-shaped opening is formed deeper than the other U-shaped portion 21d so that the outer edge of the panel heater 1 in the width direction can be securely held.

As shown in FIG. 12, the other U-shaped portion 21d is formed by connecting one end of the panel heater 1 in the width direction to one U-shaped portion 2d.
1c, the panel heater 1 is formed in a shallow U-shape such that the inner surface of the corner at the other end in the width direction comes into contact with the panel heater 1, and the other end in the width direction of the panel heater 1 is inward, that is, When strongly pushed into the mounting wall surface 20 side, the other U-shaped portion 21d is elastically deformed so as to expand outward and elastically restored when inserted into the inside thereof. One end in the width direction of the panel heater 1 can be held.

Therefore, the panel heater 1 can be easily, quickly and reliably mounted on the mounting wall 20 such as the lower surface of the counter by the mounting tool 21.

FIG. 13 is a partially cutaway schematic front view of a panel heater device 31 according to another embodiment of the present invention. The panel heater 31 is provided with the male and female connectors 9, 11 adjacent to the plurality of panel heaters 1, 1. FIG. 14 shows a state in which a foot heating device that is long in the lateral direction is formed while being joined and mechanically connected and electrically connected to each other, and FIG. 14 shows the electrical configuration thereof.

According to the panel heater device 31, by connecting the pair of male and female connectors 9, 11 to each other,
Since the plurality of panel heaters 1 can be mechanically connected to each other, the connection is easy and no mechanical coupling device is required. In addition, as shown by a broken line in FIG. 13, the mounting tool 21 is attached to the mounting wall surface 20 so as to straddle the joining end portions of the adjacent panel heaters 1 and 1 connected to each other, so that The mechanical bonding strength can be enhanced.

FIG. 15 shows an electrical configuration of a panel heater device 41 according to still another embodiment of the present invention. The panel heater 1 is provided with a plurality of pairs of male and female connectors 9 and 11 on the single panel heater 1. Together with these connectors 9, 1
It is characterized in that a plurality of sets of lead wires 12 for electrically connecting each pair are provided, and a plurality of comb-shaped electrodes 15 and 16 are electrically connected to these lead wires 12, respectively. is there.

According to this, one pair of male and female connectors 9,
Even if 11 or the comb-like electrodes 15, 16 fail,
The other pair of male and female connectors 9, 11 or comb-shaped electrodes 15,
16 allows the resistance heating element 3b to be energized and heated.

[0065]

As described above, according to the first aspect of the present invention, a resistive heating element is printed on a thin electrical insulating film by thick film printing or the like, and the outer surface of the resistive heating element is coated with another thin electrical insulating film. As a result, the heater body is formed in a sheet shape, so that the thickness of the heater body can be reduced and the weight can be reduced. Therefore, it is possible to reduce the thickness and weight of the entire panel heater.

Further, since the resistance heating element has the PTC characteristic, when the resistance heating element reaches a predetermined maximum temperature due to a high ambient temperature, a further rise in temperature is suppressed.
For this reason, overheating of the object to be heated, such as a foot, can be prevented beforehand and certainly, a temperature controller can be omitted, and power can be saved.

Since the back side of the electrical insulating film on which the resistance heating element is printed faces the opening side of the case, the heat generated by the resistance heating element can be radiated from the opening end of the case with high efficiency. Heating efficiency can be improved. Moreover, since it is radiant heating, cold draft can be prevented.

Further, the outer surface of the resistance heating element printed on the back of the heat radiation surface of the electric insulating film facing the radiation opening of the case was covered with another electric insulating film. Since a minute air layer is formed between the body and the heat insulation layer, and a heat insulating material is provided on the side of the electric insulating film for coating, the heat storage property and the retention property in the case are improved. Can be improved, and the heat radiation property when radiation is radiated from the radiation opening to the outside, that is, the heating property can be improved.

According to the panel heater of the second aspect, in addition to the effect of the first aspect, the flock is formed by directly implanting the resistive heating element on the back surface of the printed surface of the thin electric insulating film on which the resistive heating element is printed. In addition, heat generated by the resistance heating element can be transferred with high efficiency. Moreover, since the flocked surface faces the radiation opening of the case, the heat radiation efficiency when radiation is radiated from the radiation opening to the outside, that is, the heating efficiency of the feet and the like can be improved.

Further, since the hair implantation is directly provided on the heat radiating surface of the electric insulating film, both the heat storage property and the heat retaining property can be improved, and the touch when the heat radiating face is touched. Can be improved.

According to the panel heater of the third aspect, in addition to the operation of the first or second aspect, even if one of the plurality of resistance heating elements fails, another sound heater can be used. Since the resistance heating elements are electrically connected in parallel to the male and female connectors, heating can be continued by the sound resistance heating elements.

The panel heater according to the fourth aspect has substantially the same functions and effects as the third aspect of the invention.

According to the panel heater of the fifth aspect, in addition to the function of the invention of any one of the first to fourth aspects, since there are a plurality of pairs of male and female connectors, any one of the pair of connectors is required. However, even if a failure occurs, heating can be continued by the other pair of connectors.

Further, by electrically connecting a plurality of resistance heating elements to the plurality of pairs of connectors, the heating pattern of the resistance heating elements can be appropriately set.

According to the panel heater of the sixth aspect, in addition to the function of the first aspect of the present invention, the resistance heating element accommodates a lead wire connecting the male and female connectors. Since the lead wire is passed through the housing space of the outer frame outside the case, the electrical and thermal insulation of the lead wire can be improved.

According to the panel heater of the seventh aspect, in addition to the effect of the invention of the first aspect, the outer frame is divided into a corner portion and an intermediate portion. Can easily be fitted to the outer peripheral edge of the case, and the workability of the assembling operation can be improved.

According to the panel heater device of the eighth aspect, in addition to the function of the invention of any one of the first to seventh aspects, first, in addition to the function of the first aspect of the invention, One end of the panel heater in the width direction is fitted into the deeper U-shaped opening of the mounting device, and then the other end of the panel heater in the width direction is inserted into the other end of the other U-shaped opening. The panel heater can be easily and quickly fixed to the mounting device by being strongly pushed inward from the outer surface thereof so as to be fitted therein.

According to the panel heater device of the ninth aspect, the plurality of panel heaters are connected to each other by connecting the adjacent male and female connectors of the plurality of panel heaters according to any one of the first to seventh aspects. In addition to being capable of being mechanically coupled, the resistance heating elements of each panel heater can be electrically connected to each other. That is, mechanical and electrical connection between a plurality of panel heaters can be easily and quickly performed.

[Brief description of the drawings]

FIG. 1 is a front view of a panel heater according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a partially cut end surface of a cut portion along the line II-II in FIG. 1;

FIG. 3 is a longitudinal sectional view of the heater body and the heat insulating material shown in FIG. 2;

FIG. 4 is a plan view of a male corner portion of the outer frame shown in FIG. 1;

5A is a left side view of FIG. 4, and FIG. 5B is a right side view of FIG.

FIG. 6 is a front view of a lower corner portion of the outer frame shown in FIG. 1;

FIG. 7 is a left side view of FIG. 6;

FIG. 8 is a partial perspective view of a middle portion between a long side and a short side of the outer frame shown in FIG. 1;

FIG. 9 is a partially cutaway end view of a section taken along line IX-IX of FIG. 1;

FIG. 10 is a diagram showing an electrical configuration of the panel heater shown in FIG. 1 and the like.

11 is a diagram showing an electrical configuration when a power cord is connected to the panel heater shown in FIG. 1 and the like.

FIG. 12 is a view showing a mounting device of the panel heater shown in FIG. 1 and the like.

FIG. 13 is a partially cutaway front view of a panel heater device in which a plurality of panel heaters shown in FIG. 1 and the like are connected.

FIG. 14 is a diagram showing an electrical configuration of the panel heater device shown in FIG.

FIG. 15 is a diagram showing an electrical configuration of a panel heater device according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Panel heater 2 Case 2a Radiation opening 3 Heater main body 3a Base film 3b Resistance heating element 3c Electric insulating film for covering 3f Flocked surface 4 Insulating material 5 Outer frame 6a Male corner of outer frame 6b Female corner of outer frame Part 6c, 6d Corner part of outer frame 7a, 7b Long middle part of outer frame 8a, 8b Short middle part of outer frame 9 Male connector 11 Female connector 12 Lead wire 15, 16 Electrode 17 Power cord 20 Mounting wall surface 21 Attachment 21a Attachment body 21c, 21d U-shaped end 31, 41 of panel attachment

Claims (9)

[Claims] 1. A sheet-shaped heater body having a resistance heating element having a positive temperature coefficient characteristic printed on an electrical insulating film, and an outer surface of the resistance heating element covered with another electrical insulating film; At least a pair of male and female connectors electrically connected to the body, a heat insulating material disposed on the other electric insulating film side of the heater main body, and housing the heat insulating material and the heater main body. A bottomed cylindrical case having an opening on one surface side of the heater body on the opposite side of the material; an outer bottom surface of the case detachably fitted to an outer peripheral edge of the case; And an outer frame for sandwiching the outer peripheral edge on one side of the heater main body. 2. The panel heater according to claim 1, wherein the electrical insulating film is formed by implanting hairs directly on the back surface of the printed surface of the resistance heating element. 3. The panel heater according to claim 1, wherein a plurality of resistance heating elements are provided, and these are electrically connected in parallel to the respective male and female connectors. 4. The connector of each pair of the male and female is electrically connected in series to each other by a lead wire, and electrically connected in parallel to the resistance heating element via the lead wire. The panel heater according to claim 1. 5. The panel heater according to claim 1, wherein the male and female connectors have a plurality of pairs. 6. The housing according to claim 1, wherein the outer frame has an accommodation space for accommodating a lead wire for connecting a pair of male and female connectors in series outside the case. 2. The panel heater according to claim 1. 7. An outer frame is removably fitted to an outer peripheral edge of each of the corners of the case, and an outer frame is removably fitted to the outer peripheral of the case between the respective corners. The panel heater according to any one of claims 1 to 6, further comprising an intermediate portion. 8. A panel heater according to any one of claims 1 to 7, and two ends of an elastic flat plate-shaped main body fixed to a mounting wall surface of the panel heater in the width direction of the panel heater. Resilient U-shaped opening ends respectively removably fitted to a pair of opposing outer frame portions are integrally coupled to each other, and the depth of one of the U-shaped openings of the U-shaped opening ends is formed. A panel heater device comprising: a mounting tool whose depth is made shallower than the other. 9. A panel heater device comprising a plurality of panel heaters according to claim 1 arranged in a row, and a pair of adjacent male and female connectors being connected to each other. .