JPH0131867Y2 - - 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,
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.

Hard collars F made of metal or the like are inserted into the openings C of the flow passages B at both ends of the sheet portion D every other time, and the corrugated harmonica-shaped openings of the header portion E are inserted into the sheet portion 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 drawback of this conventional example is that the recess H of the high-frequency electrode G does not fit properly with the header part E and the convex part I of the seat part D when pressed, and the In many cases, they 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> A collar is inserted into every other opening of a plurality of flow pipes arranged side by side on the sheet part, and a header part is welded and joined to the end of the flow pipe opening. A heat dissipation panel in which the openings of the tubes are alternately open and sealed, characterized in that the openings into which the collar is not inserted are formed into concave notches for storing melted substances. It is.

<Function> A header part 4 is provided at the end of the flow pipe 2 of the seat part 3.
4', after inserting the collar 9 into the opening 8 on the convex side of the flow pipe 2, the collar 9 is fitted into the convex part 12 of the header parts 4, 4', while the opening 8 on the concave side of the flow pipe 2 The notch 10 ' is pressed with high frequency electrodes 15, 15' while facing the header parts 4, 4', and is thermally welded and joined.

At this time, the opening 8' has less thickness due to the concave notch 10, and can sufficiently accommodate the melted material without protruding outside.

<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 inside of the header section 4 is separated by a partition plate 5, and hot water entering from the water inlet 6 passes through half of the distribution pipes 2 and joins the header section 4'.
The water passes through the other half of the flow pipe 2, joins at the header section 4, and exits from the water outlet 7.

By connecting the water inlets of adjacent heat radiating panels to the water outlet 7, a large number of heat radiating panels can be connected.

The shape of the sheet portion 3 before the header portions 4, 4' and the sheet portion 3 are joined by heat welding is that both ends of the flow pipe 2 are formed alternately in a concave and convex shape on both edges of the sheet portion 3, and an opening 8 is formed on the convex side. do.

A collar 9 made of metal or a heat-resistant and corrosion-resistant high-quality material is inserted into every other opening 8 or in an appropriate distribution, and the end of the flow pipe 2 where the collar 9 is not inserted is cut out in a concave shape on the 10 side. The opening is defined as 8'.

In addition, the shape of the header portions 4, 4' before heat welding and joining is formed into an open bag shape with a wave harmonica shape.
The edge of the sheet portion 3 formed as described above is wrapped around the upper side 13 and lower side 14 of the header portions 4, 4' so that the corrugated convex portion 12 and the opening 8 of the flow pipe 2 are fitted.

On the other hand, the opening 8' is not enclosed within the headers 4, 4', but faces the convex portion 12 of the headers 4, 4' with a slight gap maintained therebetween.

Thereafter, the flat high frequency electrode 15' and the waveform high frequency electrode 15 are pressed together, and the header parts 4, 4' and the sheet part 3 are joined by high frequency heat welding.

The waveform high-frequency electrode 15 has a concave portion 16 in a portion corresponding to the flow pipe 2 into which the collar 9 is inserted, and a low concave portion with a somewhat protruding center in a portion corresponding to the portion where the collar 9 is not inserted and the notch 10 is formed. 17
The other parts are formed in a straight line.

The high frequency electrodes 15, 15' have a size and width that can cover up to the opening 8' extending into the notch 10.

To explain the operation with reference to FIG.
Although the heat welding process proceeds in such a manner that the convex portions 12 formed by the concave portions 16 and 12 are fitted together, there may be a misalignment in the positions of the concave portions 16 and the convex portions 12 depending on circumstances.

In that case, due to the presence of the notch 10 in the non-inserted portion of the collar 9, the convex portion 12 is displaced left and right as shown by the arrow, and as the high-frequency electrode 15 approaches, the concave portion 16
It fits properly and is securely heat welded to prevent water leakage.

Furthermore, the portion corresponding to the low concave portion 17 of the high-frequency electrode 15 does not exist at the end of the flow tube 2 due to the formation of the notch 10 on the concave side, which is necessary when crushing the flow tube as in the conventional example. The pressing force is at least good, and since the upper side 13 and lower side 14 of the header portions 4, 4' are joined by heat welding in this part, the welding strength is much stronger than the four-layer joining of the conventional example.

Furthermore, since the portion that is crushed and melted due to heat welding is reduced by the notch 10 on the concave side, the portion that protrudes outside is reduced, improving the aesthetic appearance.

The notched opening 8' of the flow pipe 2 is also crushed by heat welding at the same time, and air is sealed inside to improve the cushioning and heat retention properties of the heat dissipation panel 1. connects this end with the header parts 4, 4'.

The reason why the low recess 17 is formed in the high frequency electrode 15 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 17 is made to protrude somewhat is to make it easier to press and deform the convex portion 12 on the upper side 13 of the header portions 4, 4'.

<Effect of the invention> A collar 9 is inserted every other opening 8, 8' of a plurality of flow pipes 2 arranged in parallel on the sheet part 3, and a header part 4, is inserted into the opening 8, 8' of the flow pipe 2. In the heat dissipation panel in which the openings 8 and 8' of the flow pipe 2 are alternately opened and sealed by welding and joining the parts 4' and 4', the opening 8' where the collar 9 is not inserted is used to store melted substances. Since the notch 10 is formed in a concave shape, each opening of the flow pipe is displaced according to the unevenness of the high frequency electrode and is thermally welded at an optimum position.

In addition, the opening on the concave side has a small amount of melted parts, and it is sufficiently accommodated in the notch, and there is little protrusion outside, so the aesthetic appearance is not spoiled, and of course the welding strength of the joint is high.

[Brief explanation of the drawing]

Figure 1 is a plan view showing an embodiment of this invention, Figure 2 is a plan view showing an embodiment of this invention.
The figure is a perspective view of the same before assembly, Fig. 3 is a perspective view of the same when completed, Fig. 4 is a cross-sectional view of Fig. 3, Fig. 5 is a perspective view of the conventional example before assembly, and Fig. 6 is a perspective view of the same when completed. A perspective view 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, 8... Opening,
8'...opening, 9...collar, 10...notch.

Claims (1)

[Scope of utility model registration request] A collar 9 is inserted into every other opening 8, 8' of a plurality of flow pipes 2 arranged in parallel on the sheet part, and header parts 4, 4' are welded and joined to the openings 8, 8' of the flow pipe 2. In the heat dissipation panel in which the openings 8, 8 of the flow pipe 2 are configured to be open and sealed alternately, the opening 8' into which the collar 9 is not inserted is formed as a concave notch 10 for storing the melted material. A heat dissipation panel characterized by: