JPH0370136B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a panel heater arranged, for example, in a U-shape under a desk to heat the feet and the like.

[Background Art] For panel heaters that are formed by arranging a plurality of heating elements with heating elements embedded inside them and connecting each heating element in a bendable manner, it is possible to place the heating elements under a desk or the like in a U-shape. It is bent and installed, and by supplying electricity to the heating elements inside the heating elements, each heating element of the panel heater is heated, so that the feet and the like can be warmed. However, in the case of conventional panel heaters, the power cord has a switch part that switches the power supply to the heating element, so when changing the switch, you have to follow the power cord to find the switch part. However, the switch operation was troublesome and the switch could not be operated easily.

[Object of the Invention] The present invention has been made in view of the above points, and an object of the present invention is to provide a panel heater in which a switch operation for switching energization to a heating element of the panel heater can be easily performed. be.

[Disclosure of the Invention] That is, in the panel heater according to the present invention, a plurality of heating elements 15 each having a heating element 1 embedded therein are arranged in parallel, each heating element 15 is connected in a bendable manner, and the upper part of the heating element 15 is connected. A power switch operation part 18 is provided on the inner surface of the heat generating element 15 at the position when the heat generating element 15 is bent, and a power switch operation part 18 that can switch the energization to the heat generating element 1 is provided on the lower outer surface side of the heat generating element 15. The device is characterized in that a pull-out portion 16 for a connected power cord 17 is provided, and the power switch operation portion 18 is disposed on a corner reinforcing member 14 attached to a corner portion of the heating element 15. The part 18 is the heating element 1
By providing the cord pull-out portion 16 on the inner surface of the upper part of the heating element 15, it is possible to easily operate the switch, and by providing the cord pull-out portion 16 on the outer surface of the lower part of the heating element 15, the power cord 17 does not get in the way, such as when the power cord 17 is hung. In this way, the above objective was achieved.

The present invention will be described in detail below based on examples. A plurality of planar heating elements 1 (three in this embodiment) are arranged in parallel with a gap between them, which are formed by bending a heater wire in a zigzag shape or by printing foil or the like. As shown in FIGS. 2 and 3, a heat insulating sheet 2 made of crosslinkable foamed polyethylene or the like is laminated over the entire surface of the back side of each heating element 1, and a polyester film is further laminated on the back side of the heat insulating sheet 2. Back sheet 3 formed of needle felt, etc.
are layered. heating element 1 and heat insulation sheet 2,
An adhesive sheet 13 made of polyethylene or the like is interposed between the heat insulating sheet 2 and the back sheet 3, and the heating element 1, the heat insulating sheet 2, and the back sheet 3 are welded together with the adhesive sheet 13 so that they are firmly adhered to each other without any gaps. There is. A heat dissipation sheet 4 made of a galvanized iron plate or the like is laminated over the entire surface of the heating element 1.
A top sheet 5 made of a vinyl chloride resin sheet or the like is laminated on the front side of the heat dissipation sheet 4.
Here too, the heating element 1, the heat dissipation sheet 4, and the top sheet 5 are closely and firmly adhered to each other by the adhesive sheet 13. In the gap 6 of each adjacent heat generating element 1, a connecting portion 7 is formed in which the back sheet 3, the heat insulating sheet 2, the heat dissipating sheet 4, and the top sheet 5 are crushed from the front side and are tightly adhered by the adhesive sheet 13. There is. Here, the heat insulating sheet 2 is made of a material such as a cross-linked polyethylene foam that melts at a temperature higher than the heat generation temperature of the heat generating element 1 during use, and includes a top sheet 5, a heat dissipating sheet 4, a heat generating element 1, and a heat insulating sheet. When bonding the sheet 2, the top sheet 3, and the adhesive sheet 13 inserted between each sheet by heating and applying pressure, the gap portion of the heating element 1 is pressed particularly strongly from the front side, thereby causing pressure in the gap portion 6. It is crushed and a connecting portion 7 is recessed between the heating elements 1, 1. Therefore, the heating element 1 can be bent downward at the connecting portion 7, and the top sheet 5, the heat dissipation sheet 4, and the adhesive sheet 1
3. The heat insulating sheet 2 and the back sheet 3 are the heating element 1
Because it is continuous from the front and back sides of
The strength of the connecting portion 7 also does not decrease. Further, as shown in FIG. 3, the heating elements 1 embedded in each heating element 15 are connected by a heat wire 19 at the connecting portion 7. As shown in FIG.

In this way, heat insulating sheet 2 is attached to heat generating element 1,
The back sheet 3, heat dissipation sheet 4, and top sheet 5 are closely adhered to each other to form a heating element 15, and the adjacent heating elements 15, 15 are foldably connected at the connecting portion 7 to form a panel heater A.
is configured. As shown in FIGS. 1 and 2, a corner reinforcing member 14 having a U-shaped cross section is attached to the corner of the panel heater A to protect the corner of the panel heater A. Specifically, as shown in FIG. 4, the corner reinforcing material 14 is provided with a screw hole 22, and by screwing the screw 24 from this hole 22 into the through hole 23 of the heating element 15. , a corner reinforcement 14 is fixed to the heating element 15. A power switch operating section 18 is provided on the inner surface side of the corner reinforcing material 14 attached to the upper corner of the panel heater A. The power switch operating section 18 includes a switch 20 for switching energization to the heat generating element 1, and a switch 20 for switching the energization to the heat generating element 1. A pilot lamp 21 is provided to indicate the state in which the element 1 is energized. In other words, other parts such as the power switch operating section 18 are provided on the corner reinforcing material 14 that protects the corners of the panel heater A, and other parts such as the power switch operating section 18 are installed by attaching the corner reinforcing material 14. It can be attached to panel heater A. A cord lead-out part 16 is provided on the lower outer surface of the heating element 15 on the end side of the panel heater A, and a power cord 17 is led out from the cord lead-out part 16. electrically connected. That is, as shown in FIG.
The cord pull-out portion 16 is constructed by disposing the cover 26 of No. 7 and fixing it to the reinforcing plate 25 by passing screws through screw holes 27 formed in the cover 26. Note that 28 in the figure is a cord stopper that prevents the power cord from coming off when it is strongly pulled. Further, a support 29 having a substantially L-shaped or U-shaped cross section as shown in FIGS. 6a and 6b is fitted into the lower end of the heating element 15 in the center, In addition to protecting the heating element 15, a small gap is formed between the floor surface and the heating element 15.

The panel heater A, which is configured to be foldable as described above, is installed in a U-shape, for example, under a desk, and by turning on the switch 20 of the switch operation section 18 of the panel heater A, the heating element can be turned on and off. 1 is energized to heat it, and this heat is uniformly transmitted to the heat dissipation sheet 4 to heat the heating element 15. By inserting the foot into the area surrounded by the panel heater A, It can be heated. Here, the power switch operation section 18
is provided on the upper inner surface of the heating element 15 when the panel heater A is bent into a U-shape, so it is easy to reach and operate the switch 20. A pilot lamp 21 is provided in the portion 18, and by looking at the pilot lamp 21, the status of energization to the heating element 1 can be easily confirmed. Furthermore, the pull-out portion 16 of the power cord 17
By providing on the lower outer surface of the panel heater,
This can prevent malfunctions such as the cord 17 being caught during use. Moreover, the power switch operating section 18 and the cord pull-out section 16 are connected to the heating element 1.
By providing parts 16 at different locations in 5, parts code extraction parts 16 that are sensitive to heat or that require heat dissipation can be removed.
Components such as a temperature fuse, which must be disposed in the vicinity and must quickly respond to temperature increases, can be disposed in the vicinity of the power switch operating section 18. In addition, the power switch operation section 18 and the cord pull-out section 16 are connected to the same heating element 1.
5, the wiring of the heating element 1 of the panel heater A can be simplified. That is, between the heating elements 15, 15, the internal heating elements 1, 1 are connected only by the lead wire 19 as described above, and the connection between the power switch operation part 18 and the cord pull-out part 16 is made using a single heating element. This can be done inside the body 15.

The corner portions of panel heater A are particularly vulnerable to external forces and easily deform, and since panel heater A is used leaning against the floor, the lower portion that touches the floor needs to be reinforced. A corner reinforcement 14 with a radius is attached, but by sharing the power switch operation part 18 with the corner reinforcement 14 at one corner, it is beneficial in terms of appearance and cost. For example, corner reinforcement By attaching the material 14, the power switch operation part 18 can be placed at the corner of the panel heater A, and multiple parts can be placed at a predetermined location by attaching one part. This allows you to save time and effort. Furthermore, the central heating element 1
Panel heater A
In addition to preventing dirt on the floor surface and panel heater A.
A large amount of air flows between panel heater A and the lower end of panel heater A.
This has the advantage of providing panel heater A with high heating efficiency.
The panel heater A constructed in this way has the advantage that when not in use, it can be opened into a plate shape as shown in FIG. 2, or it can be easily stored by folding each heating element 15. Furthermore, when the panel heater A is folded, the heating elements 1 do not come into contact with each other, so that the panel heater A has good ventilation and is less likely to generate mold when stored, and also has the advantage of being easy to open.

[Effects of the Invention] As described above, the present invention is provided with a power switch operation part that can switch the power supply to the heating element on the inner surface of the upper part of the heating element in which the heating element is disposed, so that it is easy to reach. It has the advantage of being easy to operate the switch, and since there is a pull-out part for the power cord connected to the heating element on the outside of the lower part of the heating element, there is no possibility of malfunctions such as getting the power cord caught during use. It has the advantage of preventing Also,
The power switch operating section is placed on a corner reinforcing material attached to the corner of the heating element, and by being placed together with the corner reinforcing material in this way, the power switch operating section can be removed by attaching the corner reinforcing material. can be placed at the corner of the panel heater, and multiple parts can be placed in a predetermined location by attaching one part.The corner reinforcement material There is an advantage that the power switch operation section and the power switch operation section can be installed at the same time in one installation operation.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a panel heater according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the same, FIG. 3 is a partially cutaway front view of the same, and FIGS. 4 a and b are power switch operation parts of the same. A partially cutaway perspective view and a partially cutaway side view of
Figures a and b are a partially cut-away front view and a partially cut-away side view of the cord pull-out portion of the same, and Figures 6a and b are sectional views of essential parts of the same. 1 is a heating element, 14 is a corner reinforcing member, 15 is a heating element, 16 is a cord pull-out portion, 17 is a power cord, 18 is a power switch operating portion, and A is a panel heater.

Claims (1)

[Scope of Claims] 1. A plurality of heating elements each having a heating element embedded therein are arranged side by side, and each heating element is connected so as to be bendable, and at the upper position of the heating element and when the heating element is bent. A power switch operating part that can switch the power supply to the heating element is provided on the inner surface of the heating element, and a pull-out part for the power cord connected to the heating element is provided on the outer surface of the lower part of the heating element, and the power switch operating part A panel heater characterized in that it is arranged on a corner reinforcing member attached to a corner part of a body. 2. The panel heater according to claim 1, wherein the power switch operating section and the cord pull-out section are provided on the same heating element.