JP5420229B2 - Heating panel - Google Patents

Description

  The present invention sandwiches a current-carrying heater between a surface material and a back-surface material with a conductive heat-uniforming sheet that diffuses the heat generated by the current-carrying heater on the surface material side. The present invention relates to a heating panel having a structure in which a lead-out portion is fixed.

  Conventionally, a current-carrying heater is sandwiched between a surface material and a back-surface material with a conductive heat-uniforming sheet that diffuses the heat generated by the current-carrying heater on the surface material side. There is known a heating panel having a structure in which parts are fixed. For heating panels with such a structure, a method is proposed in which a soaking sheet made of aluminum foil or the like is attached to the surface material, and then the ground wire is bonded to the soaking sheet with a metal tape or conductive adhesive. It had been.

However, there is a suspicion that the ground wire may be peeled off from the soaking sheet if there is insufficient adhesion or insufficient strength in the conductive connection of the ground wire by this bonding method. With respect to this problem, the following Patent Document 1 describes that an elastic material is installed on the back side of the metal tape, and peeling is prevented by pressing the metal tape.
JP 2000-179877 A

  However, in the method disclosed in Patent Document 1, if the pressing force of the elastic material is too strong, the surface material and the back material of the heating panel may be pressed, and the appearance may be partially swollen. On the other hand, if the pressing force of the elastic material is weak, there is a problem that the effect of preventing the peeling of the ground wire is weakened and meaningless. Further, since an elastic material is newly required, there is a problem that costs are increased and a process for installing the elastic body is also required.

  Therefore, instead of the above-described bonding method, a method of connecting the ground wire to the soaking sheet by mechanical fastening means such as eyelets can be considered. In the case of a child, it is a manufacturing process in which the ground wire is fastened to the soaking sheet, and then the soaking sheet is attached to the back surface of the surface material. Further, as a fastening means other than the eyelet, it is also possible to attach the soaking sheet to the surface material and then attach the ground terminal to the soaking sheet with a tapping screw or the like.

  However, in the method of sticking the soaking sheet with the ground wire attached in advance to the surface material, there is a possibility that a problem that wrinkles are likely to occur when the soaking sheet is stuck. Further, in the method of attaching the ground terminal to the soaking sheet with a tapping screw or the like, since the surface material is thin, it is necessary to prevent the tip of the tapping screw from penetrating the surface material, which causes a problem that the fixing strength is lowered.

  Then, this invention makes it a subject to provide the heating panel of the novel structure which can adhere a ground wire derivation | leading-out part to a heat equalization sheet | seat cheaply and efficiently.

In the present invention, a current-carrying heater is arranged in a planar shape between a face material and a back-surface material, and a conductive heat-uniforming sheet is interposed between the surface material and the current-carrying heater, thereby preventing leakage of electricity to the heat-uniforming sheet. In the heating panel having a structure in which a ground wire lead-out portion is connected, a frame-like spacer material is attached to the back surface material, and the inside thereof serves as a current-carrying heater and heat-insulating material accommodating space, and the end portion of the accommodating space is the above-mentioned A spacer material for preventing the curvature of the surface material is further attached to a boundary portion between the accommodation space and the gap portion as a gap portion where the energizing heater and the heat insulating material are not disposed. And the soaking sheet is attached to the surface material so as to spread over the entire accommodation space including the gap, and is connected to the ground wire in the gap. Shape the part And, wherein the ground connection portion, the soaking sheets folded portion further 2 ply caused from the surface material, deriving portion of the ground wire is secured.

  Moreover, in the above, it is desirable that a gap is formed on the back side of the ground wire connecting portion of the soaking sheet.

  In addition, you may form the said earth wire connection part by causing the corner part of the periphery of the said heat equalization sheet | seat.

  Or you may form by forming the notch which goes inward from the periphery of a soaking | uniform-heating sheet | seat, and raising the part from the said surface material.

  In the present invention, the soaking sheet is adhered to the surface material except for a part thereof, and the unbonded portion is caused in the connection process with the ground wire to serve as the ground wire connection portion, and the ground wire lead-out portion Are mechanically coupled and fixed. Therefore, there is no fear of poor conduction due to insufficient adhesion or peeling, which was likely to occur in the conventional structure in which the lead-out portion of the ground wire is bonded and fixed. In addition, since no special member or the like is required, the cost can be reduced. In particular, since the ground wire connecting portion is a part of the soaking sheet, the ground wire lead-out portion can be easily mechanically coupled and fixed.

  In particular, in the structure in which a gap is formed on the back side of the ground wire connection part of the soaking sheet, no stress is applied to the ground wire connection part from the back, and the lead part of the ground wire is mechanically coupled. There is no appearance defect such as the appearance of the trace on the surface side of the surface material by pressing the fixed portion against the back surface side of the surface material.

  The soaking sheet has a size larger than that of the energizing heater, and sticks to the surface material so as to protrude from the energizing heater. In the structure in which the ground wire connecting portion is formed at the protruding portion, the ground wire connecting portion There is no interference from the energized heater with respect to the connecting portion between the wire and the ground wire.

  In addition, in the structure in which a gap is formed on the back side of the ground wire connection part of the heat equalizing sheet, no stress is applied from the back to the ground wire connection part, and the lead part of the ground wire is mechanically coupled. There is no appearance defect such as protrusions appearing on the surface side of the surface material due to the fixed portion being pressed against the back surface side of the surface material.

  Further, in the structure formed by causing the corner portion of the peripheral edge of the soaking sheet from the surface material, it is not necessary to process the soaking sheet, so that the cost can be reduced.

  On the other hand, in the structure formed by forming a cut inward from the peripheral edge of the heat equalizing sheet and pulling that portion from the surface material, the ground wire connecting portion is grounded at an arbitrary position on the peripheral edge of the heat equalizing sheet. Since the line connecting portion can be formed, the degree of freedom in design is improved.

  In addition, the ground wire connection part is formed with a part that causes a soaking sheet and is folded in two, and in the structure in which the lead part of the ground wire is fixed to this part, the strength of the ground wire connection part is Therefore, the soaking sheet is less likely to break.

  Hereinafter, a heating panel embodying the present invention will be described with reference to the drawings. The heating panel of an Example has illustrated what is used as a wall panel used by installing in indoor spaces, such as a toilet, a living room, and a dining room, for example.

  1 is a longitudinal sectional view of the embodiment, FIG. 2 is a transverse sectional view of the embodiment, and FIG. 3 is a plan view showing the spread of the energizing heater and the heat equalizing sheet in the embodiment. In these drawings, the back surface material is drawn on the upper side and the front surface material is on the lower side, and the two-dot broken line in FIG. 3 shows a cutting position for obtaining the cross-sectional views in FIGS.

  This heating panel 1 has a basic structure in which an energizing heater 13 is sandwiched between a surface material 11 and a back surface material 12 with a conductive soaking sheet 14 diffusing the heat generated by the energizing heater 13 on the surface material side. have.

  The surface material 11 is made of, for example, plywood or MDF with a veneer, and is thin in order to transmit heat generated by the energizing heater 13. The back material 12 is made of thick plywood or MDF.

  A spacer material 15 is attached to the back surface material 12 in a frame shape, and a recess surrounded by the spacer material 15 becomes a heater accommodating portion. Moreover, since the energizing heater 1 and the heat insulating material 20 are not disposed in this portion near the end of the back surface material 12, a void portion is generated. A spacer material 15 is attached to the end of the back surface material 12 in order to prevent the curvature of the surface material 11 in the gap.

  The energizing heater 13 is accommodated in a heater accommodating portion surrounded by the back surface material 12 and the spacer material 15. The energizing heater 13 may be, for example, a heating wire fixedly covered with a protective sheet such as Nichrome expanded in a plane. Alternatively, a P-type semiconductor ink layer may be fixed on a base sheet, and the whole may be covered with a protective sheet. The latter is known as a PTC (Positive Temperature Coefficient) heater, and has the property that the heater itself does not generate heat above a preset temperature. Further, by interposing the heat insulating material 20 between the energizing heater 13 and the back surface material 12, diffusion of heat to the back material side is suppressed. The energizing heater 13 is connected to a power supply controller that supplies electric power to the energizing heater 13 by wiring (not shown).

  A soaking sheet 14 is adhered to the entire surface material 11. The soaking sheet 14 may be, for example, an aluminum foil having a thickness of about 50 microns. Alternatively, a carbon sheet may be used. As a result, heat can be evenly transmitted to a region where the energizing heater 13 is not disposed, such as a gap portion. Note that the soaking sheet 14 is not partially attached to the surface material 11 in the gap, and is caused from the surface material 11 to become the ground wire connection portion 21.

  A lead-out portion 22 of the ground wire 17 is fixed to the ground wire connecting portion 21 with eyelets or a staple needle in order to prevent leakage. The ground wire is led out to the outside from the opening of the gap portion or from an opening appropriately provided on the back surface material 12.

  As described above, in the present invention, a part of the soaking sheet 14 is attached to the surface material 11, and the part that is not attached is caused in the connection step with the ground wire 17 to cause the ground wire connecting portion 21. As described above, since the ground wire 17 lead-out portion is mechanically coupled and fixed thereto, there is a fear of poor conduction due to insufficient adhesion or peeling, which is easily caused in the conventional structure in which the ground wire lead-out portion 22 is bonded and fixed. There is no. Further, since no special member or the like is required, the cost can be reduced. In particular, since the ground wire connecting portion 21 is a portion where the soaking sheet 14 is partially raised, there is an advantage that the ground wire lead-out portion 22 can be mechanically coupled and fixed and the process is simplified.

  Further, since the ground wire connecting portion 21 is in the gap, no stress is applied to the ground wire connecting portion 21 from the back, and the portion where the lead-out portion of the ground wire 17 is mechanically coupled and fixed is the surface material. 11 is not pressed against the back surface side of the surface material 11, so that appearance defects such as traces of the protrusions appear on the front surface side of the surface material 11.

  Further, the soaking sheet 14 has a size larger than that of the energizing heater 13, protrudes from the energizing heater 13 and is adhered to the surface material 11, and the ground wire connecting portion 21 is formed in the protruding portion, that is, the gap portion. Has been. Accordingly, the coupling portion between the ground wire connecting portion 21 and the ground wire 17 is not subject to interference by the energizing heater 13.

  4, 5, and 6 are partial schematic views of other embodiments, showing specific examples of different ground wire connection portions 21.

  The ground wire connecting portion 21 in FIG. 4 is formed by causing the peripheral corner portion of the heat equalizing sheet 14 from the surface material 11. In this way, since it is not necessary to process the soaking sheet 14 in particular, the cost can be reduced.

  The ground wire connecting portion 21 in FIG. 5 is formed by forming a cut inward from the periphery of the soaking sheet 14 and pulling that portion from the surface material 11. If it does in this way, since the earth wire connection part 21 can be formed in the arbitrary positions of the periphery of the soaking sheet 14, the freedom degree of design improves.

  The ground wire connecting portion 21 in FIG. 6 is formed with a portion that causes the heat equalizing sheet 14 and is further folded into two, and a ground wire lead-out portion 22 is fixed to this portion. In this way, the strength of the ground wire connecting portion 21 is increased, so that the soaking sheet 14 is less likely to break.

It is sectional drawing of the vertical direction of an Example. It is sectional drawing of the horizontal direction of an Example. It is a top view of an Example. It is a partial schematic diagram of another Example. It is a partial schematic diagram of another Example. It is a partial schematic diagram of another Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Surface material 12 Back surface material 13 Heating heater 14 Soaking | uniform-heating sheet | seat 17 Ground wire 21 Ground wire connection part 22 Lead part of ground wire

Claims (4)

An energizing heater is disposed between the surface material and the back material in a planar shape, and a conductive heat equalizing sheet is interposed between the surface material and the energizing heater. In a heating panel with a structure connected to
A frame-shaped spacer material is attached to the back surface material, and the inside of the housing space is used as a housing space for the energizing heater and the heat insulating material, and an end portion of the housing space is used as a gap portion where the energizing heater and the heat insulating material are not disposed. Further attaching a spacer material to prevent the surface material from being curved at the boundary with the gap,
The energizing heater and the heat insulating material are disposed so as to spread in the accommodation space excluding the gap portion, and the soaking sheet is attached to the surface material so as to spread over the entire accommodation space including the gap portion. And forming a ground wire connection in the gap,
The ground connection part is a heating panel in which a lead-out part of the ground wire is fixed to a portion where the heat equalizing sheet is raised from the surface material and further folded into two . In claim 1,
A heating panel in which a gap is formed on the back side of the ground wire connecting portion of the heat equalizing sheet. In claim 1 or 2,
The ground wire connecting portion is a heating panel formed by causing a corner portion of a peripheral edge of the soaking sheet. In claim 1 or 2,
The ground wire connecting portion is a heating panel formed by forming a cut inward from the peripheral edge of the soaking sheet and raising the portion from the surface material.

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