JPH0112100Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> This invention relates to a heat dissipation panel used for floor heating and the like.

<Prior art> Previously, Utility Model Application No. 58-150277 filed by the present applicant
There is a number, and to explain it with Figures 5 to 7, A
is a heat dissipation panel that is laid on the floor to perform underfloor heating, and is made of flexible synthetic resin or synthetic rubber, and has a large number of hollow flow passages B in parallel, with openings C on both sides of the flow passages B. It consists of a seat portion D and a header portion E that is joined to both edges of the sheet portion D by heat welding.

Insert every other hard collar F made of metal or the like into the opening C of the flow path B at both ends of the sheet part D, and use the wavy harmonica-shaped opening of the header part E to close this sheet part D.
The edges of the sheet portion D and the opening of the header portion E are joined by heat welding by sandwiching the ends of the sheet portion D and pressing with high frequency electrodes G and G′.

At this time, the flow pipe B containing the collar F does not collapse even during heat welding and allows hot water to flow through it, while the edge of the flow pipe B without the collar F collapses during heat welding, making hot water flow impossible. As a result, air is sealed in the flow pipe B, thereby improving the cushioning properties of the heat dissipation panel A.

<Problems to be solved by the invention> However, the disadvantage of this conventional example is that the recess H of the high-frequency electrode G does not fit properly with the convex parts of the header part E and the seat part D when pressed, and the In many cases, the parts were pressed out of position, resulting in incomplete heat welding and water leakage.

In addition, the part J that would be crushed during heat welding without adding the collar F has 4 layers overlapped and heat welded in order from the top: the upper side of the header E, the upper side of the flow pipe B, the lower side of the flow pipe B, and the lower side of the header E. It is twice as thick as the side of the flow pipe B where the collar F is inserted, and therefore, if the pressure of the electrode G is set to the flow pipe B side where the collar F is inserted, the welding strength will be weaker. There is a drawback in that it is necessary to increase the pressing force when crushing the flow pipe B on the side where there is no flow pipe B.

Furthermore, in the crushed part J, the flow pipe B and the header part E melted during joining, and unnecessary parts protruded from each part, resulting in an unsightly finished product.

<Means for solving the problem> In a heat dissipation panel constructed by inserting a collar into every other flow pipe into a plurality of flow pipes arranged in parallel on the sheet part, and further welding and joining a header part to the edge of the flow pipe. The edges of the flow pipe are alternately formed into concave and convex shapes, and the collar is inserted into the opening on the convex side while the opening is inserted into the header part, and the opening on the concave side is kept at a predetermined distance from the header part. This relates to a heat dissipation panel integrally constructed by facing each other and welding and joining.

<Function> A header portion 4 is provided at the edge of the flow pipe 2 of the seat portion 3.
4', after inserting the collar 7 into the opening 6 on the convex side of the flow pipe 2, the collar 7 is fitted into the convex part 9 of the header parts 4, 4', while the opening 6 on the concave side of the flow pipe 2 ' is pressed with high-frequency electrodes 13, 13' while facing the header parts 4, 4', and is joined by heat welding.

<Example> 1 is a heat dissipation panel that is laid on the floor to perform floor heating, and is molded from a material such as a soft synthetic resin such as vinyl chloride thermoplastic elastomer or synthetic rubber, and is hollow in the longitudinal direction. It is composed of a sheet part 3 having a plurality of flow pipes 2 arranged in parallel, and header parts 4, 4' which are watertightly joined to both ends of the sheet part 3 by a method such as high-frequency heat welding.

The hot water that has passed through the distribution pipe 2 is passed through the header sections 4 and 4'.
The water flows in and out from the water inlet and outlet port 5.

By connecting the water inlets and outlets of adjacent heat radiating panels to the water inlet and outlet 5, a large number of heat radiating panels can be connected.

The header parts 4, 4' and the seat part 3 are joined and integrated by heat welding, but the shape of the seat part 3 before the heat welding is such that there are flow pipes on both ends of the seat part 3.
Both ends are alternately concave and convex with an opening 6 on the convex side.

A collar 7 made of metal or a high-quality heat-resistant and corrosion-resistant material is inserted into every other opening 8 or at an appropriate distribution, and the end edge of the flow pipe 2 where the collar 7 is not inserted is cut out 12 to form a concave side. The opening is defined as 6'.

The notch 12 of the opening 6' on the concave side has a rectangular shape of 1 to 3 cm.

The shape of the header parts 4, 4' before heat welding is formed into an open bag shape with a wave harmonica shape 8, and the wave shaped convex part 9 and the opening 6 of the flow pipe 2 are inserted as described above. The edges of the formed sheet portion 3 are wrapped around the upper side 10 and lower side 11 of the header portions 4, 4'.

On the other hand, the opening 6' is not enclosed within the headers 4, 4', but faces the convex portion 9 of the headers 4, 4' with a gap of 2 to 3 mm maintained therebetween.

Thereafter, the flat high-frequency electrode 13' and the waveform high-frequency electrode 13 are pressed together, and the header parts 4, 4' and the sheet part 3 are joined by high-frequency heat welding.

The part of the waveform high-frequency electrode 13 corresponding to the flow pipe 2 into which the collar 7 is inserted is a recess 14, and the part corresponding to the part where the collar 7 is not inserted and where the notch 12 is formed is a low recess whose center protrudes somewhat. 15
The other parts are formed in a straight line.

The high-frequency electrodes 13, 13' have a size and width that can cover up to the opening 6' extending into the notch 12.

To explain the operation with reference to FIG.
The heat welding process proceeds in such a manner that the convex portions 9 formed by the concave portions 14 and 9 are fitted together, but depending on circumstances, the positions of the concave portions 14 and the convex portions 9 may be misaligned.

In that case, due to the presence of the notch 12 in the non-inserted portion of the collar 7, the convex portion 9 is displaced left and right as shown by the arrow, and as the high-frequency electrode 13 approaches, the concave portion 14 is properly fitted and heat welding is ensured. No water leakage etc.

Furthermore, the portion corresponding to the low concave portion 15 of the high-frequency electrode 13 does not exist because the end edge of the flow tube 2 is formed with the notch 12 on the concave side, so it is not necessary when crushing the flow tube 2 as in the conventional example. Moreover, since the upper side 10 and lower side 11 of the header portions 4, 4' are joined by heat welding in this part, the welding strength is much stronger than that of the conventional four-layer joint.

In addition, the portions that are crushed and melted due to heat welding are reduced by the notches 12 on the concave side, and are accommodated at predetermined intervals, so that there are fewer portions that protrude to the outside, improving the aesthetic appearance.

The opening 6' of the flow pipe 2, in which the convex parts 9 of the header parts 4, 4' are crushed and the notches 12 are made, is also melted and thermally welded by high-frequency electrodes 13, 13' at the same time, and the inside Air is filled in to improve the cushioning and heat retention properties of the heat dissipation panel 1, and the melted and protruding portion connects this end to the header portions 4, 4'.

The reason why the low recess 15 is formed in the high frequency electrode 13 is to prevent the melted material from flowing into the header portions 4, 4' during thermal welding, and to form a buildup thereon.

The reason why the approximately center of this low recess 15 is made to protrude somewhat is to make it easier to press and deform the protrusion 9 on the upper side 10 of the header portions 4, 4'.

<Effect of the invention> A heat dissipation device constructed by inserting a collar 7 every other time into a plurality of flow pipes 2 arranged in parallel on the seat part 3, and further welding header parts 4, 4' to the edges of the flow pipes 2. In the panel, the edges of the flow pipe 2 are alternately formed into concave and convex shapes, and while inserting the collar 7 into the opening 6 on the convex side, the opening 6 is inserted into the header parts 4, 4', and the concave side The side opening 6' is integrally constructed by welding and welding the header parts 4, 4' facing each other with a predetermined distance between them, so that the melted portion during heat welding is removed because the concave side is cut out. The welding material flows into and is housed in the container, and only a small amount protrudes from each part, which increases the welding strength and does not impair the aesthetic appearance.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the embodiment of this invention before assembly, Figure 2 is a perspective view of the same before thermal welding, Figure 3 is a perspective view of the same when completed, and Figure 4 is a cross-sectional view of Figure 3. ,
FIG. 5 is a perspective view of the conventional example before assembly, FIG. 6 is a perspective view of the same when completed, and FIG. 7 is a cross-sectional view taken from FIG. 6. 1... Heat dissipation panel, 2... Distribution pipe, 3... Sheet part, 4, 4'... Header part, 6... Opening,
6'...Opening, 7...Color.

Claims (1)

[Scope of utility model registration request] In a heat dissipation panel constructed by inserting a collar 7 every other time into a plurality of flow pipes 2 arranged in parallel on a sheet part 3, and further welding and joining header parts 4, 4' to the edges of the flow pipes 2, The edges of the flow pipe 2 are alternately formed into concave and convex shapes, and while inserting the collar 7 into the opening 6 on the convex side, the opening 6 is inserted into the header parts 4, 4';
The opening 6' on the concave side faces the header parts 4, 4' at a predetermined distance, and is welded and joined to form a heat dissipation panel.