KR20050075939A - Plastic heating panel with heat pipe - Google Patents

Abstract

The present invention relates to a heating panel used for heating the floor of a building, wherein a hot water inlet and a hot water outlet are formed on a side thereof, and a plastic panel in which a hot water passage communicating the hot water inlet and the hot water outlet is formed; And a heat pipe embedded in the plastic panel over the front surface of the plastic panel. Characterized in that comprises a.

Description

Plastic heating panel with heat pipe embedded {PLASTIC HEATING PANEL WITH HEAT PIPE}

The present invention relates to a heating panel used for heating the floor of a building, and more particularly to a plastic heating panel characterized in that the heat pipe is embedded in the plastic panel on which the hot water passage is formed.

In general, a heat pipe is a device in which a working fluid in a sealed container transfers heat between the two ends of a container through a phase-change process between gas and liquid, and transfers heat using latent heat to move a single phase working fluid. It is known to exert a very large heat transfer performance compared to conventional heat transfer equipment using.

Due to these advantages, a technique for applying a heat pipe to a floor heating of a building such as a house or an apartment is known.

As a conventional technology incorporated herein, Korean Utility Model No. 170402, "Hot Water Ondol Panel," filed by the present applicant is continuously disposed with respect to the front surface of the hot water pipe disposed across the panel and the hot water. The present invention discloses a heating panel including a sand-pipe tubular heat pipe in contact with a pipe.

Due to the above-described conventional technology, the overall length of the hot water pipe is shortened, and thus, the required amount of water is reduced, thereby reducing the heating cost and the capacity and power of the hot water circulation pump.

However, the above conventional technology requires a separate hot water pipe, and the heat pipe is welded to the hot water pipe to induce heat transfer through the contact portion between the heat pipe and the hot water pipe, and the heat transfer method is a heat pipe and hot water. Since welding work must be done at every contact point of the pipe, making the work difficult makes it possible to raise the price of the heating panel, and also may cause a decrease in heat transfer rate due to poor welding work or damage to the welded part over time. .

Accordingly, an object of the present invention is to provide a heating panel in which a hot water passage is formed in a plastic panel, and a heat pipe is embedded in the plastic panel to simplify the manufacturing work.

In order to solve the above problems, the present invention, in the heating panel for heating the floor of the building: a hot water inlet and a hot water outlet is formed on the side, the hot water inlet is formed therein communicating the hot water inlet and the hot water outlet Plastic panel; And a heat pipe embedded in the plastic panel over the front surface of the plastic panel. Characterized in that comprises a. Above and below, plastic refers to all resin materials that can be molded by heating or pressing or both.

In the above, a portion of the heat pipe is preferably provided on the upper portion of the hot water passage. Although a part of the heat pipe may be provided on the side of the hot water passage to receive heat transfer from the heating water passing through the hot water passage, (1) shortening of the heat transfer distance to the bottom surface, that is, the top, and (2) the heat pipe and This is because a part of the heat pipe is preferably provided on the upper portion of the hot water passage to receive heat transfer in order to increase the heat transfer area of the hot water passage.

In the above, the plastic panel is preferably formed integrally with a thermally conductive plastic material. This is because the heat transfer efficiency can be improved even when the heat transfer distance of the hot water passage and a part of the heat pipe receiving the heat transfer from the heat conductive plastic material is long.

In the above, a part of the heat pipe is preferably provided to be spaced apart from the hot water passage by about 1mm or less or in contact with the hot water passage. This is because it is desirable that a portion of the heat pipe is located near the hot water passage to increase the heat transfer rate.

In the above, it is preferable that the flow passage cross section of the hot water passage generally forms a square. In the conventional pipe-type hot water pipe, the passage cross section forms a circle, and in the case of the present invention, the passage cross section may be formed in a circle. This is because the heat transfer area can be maximized when forming the furnace.

In the above, a portion of the heat pipe may be considered to protrude into the hot water passage. Although the entire heat pipe is embedded in the plastic panel, it is easy in the manufacturing process, but considering that the heat transfer rate is higher than the difficulty in the manufacturing process, a part of the heat pipe protrudes into the hot water passage so that the heat pipe receives heat transfer directly from the heating water. have.

In the above, the hot water outlet is formed on the other side of the opposite side of the hot water inlet is formed, it may be considered that the hot water passage is formed in a straight pipe shape. In the case of heating panels used for floor heating of buildings, most of them consist of hot water passages in the form of a straight pipe as described above. In some cases, the hot water outlet and the hot water inlet are formed on the same side of the plastic panel, or in some cases, the hot water. The passageway may be formed in the form of an elbow or "a".

In the above, it is preferable to further include a heat sink provided on the upper surface of the plastic panel.

In the above, it is preferable to further include a heat insulating material provided on the lower surface of the plastic panel.

Hereinafter, the present invention will be described in detail according to an embodiment of the present invention.

1 is a perspective view of a plastic heating panel according to an embodiment of the present invention, Figure 2 is a front view of the plastic panel of Figure 1, Figure 3 is a perspective view of the plastic panel of Figure 2 inclined from the bottom, Figure 4 It is a top view of the plastic panel of FIG. 2, and FIG. 5 is a longitudinal cross-sectional view of the AA line of FIG.

4 and 5 illustrate the hot water passage, the hot water inlet, the hot water outlet, and the heat pipe larger than the plastic panels of FIGS. 1 to 3 to express the relationship between the hot water passage, the hot water inlet, the hot water outlet, and the heat pipe. Thus, the scales of FIGS. 1, 2, 3 and 4 and 5 are different from each other.

As shown in FIG. 1, the plastic heating panel includes a heat dissipation plate 100 at an upper portion thereof and a heat insulating material 300 at a lower portion thereof, and a plastic panel 200 is provided between the heat dissipation plate 100 and the heat insulating material 300.

The heat sink 100 covers the entire upper surface of the plastic panel 200 so that heat transfer can occur in a space between the heat pipes 500 to be described later in a short time so that a uniform temperature distribution can be made to prevent thermal bone phenomenon. . As the heat sink 100, an iron plate, an aluminum plate, a stainless plate, etc. which are excellent in thermal conductivity can be used.

The heat insulator 300 is provided on the entire lower surface of the plastic panel 200 to prevent heat from leaking to the bottom of the plastic panel 200. The heat insulator 300 of the present embodiment is made of styrofoam to form the bottom of the plastic panel 200. It is attached to and supports the plastic panel 200 and at the same time acts as a heat insulator. As the heat insulating material 300, not only styrofoam, but also a mixture of styrofoam particles and inorganic materials, corrugated cardboard, urethane foam, PE foam, and the like may be applied.

2 to 5 illustrate the structure of the plastic panel 200.

In the present embodiment, the plastic panel 200 is made of a thermally conductive plastic material.

Thermally conductive plastics are well known materials, and the thermal conductivity of ordinary plastics is about 0.02 W / mK to 0.2 W / mK, which is mainly used for thermal insulation, while thermally conductive plastics have a weak thermal conductivity depending on the material. It reaches 1W / mK ~ 100W / mK.

 The hot water inlet 210 is formed at one side of the plastic panel 200, and the hot water outlet 220 is formed at an opposite side of the side on which the hot water inlet 210 is formed.

In addition, the hot water passage 230 communicating the hot water inlet 210 and the hot water outlet 220 is formed in a straight tube shape while forming a rectangular channel cross section.

Therefore, the heating water flows in through the hot water inlet 210 and flows out through the hot water passage 230 to the hot water outlet 220.

The flow path section of the hot water passage 230 is not an exact quadrangle, and two vertices located at the bottom of the quadrangle are formed in an arc shape rather than at a right angle to minimize flow resistance of the heating water.

In addition, the thickness of the plastic forming the lower portion of the hot water passage 230 is made thicker toward the top to achieve a stable support structure.

On the other hand, the hot water inlet 210 and the hot water outlet 220 may have a circular cross section so that the connection member connecting the hot water outlet 220 of the plastic panel and the hot water inlet 210 of the other plastic panel may be easily mounted. It was.

On the other hand, as a result of the groove 240 formed around the outer circumference of the hot water inlet 210 and the hot water outlet 220, the hot water inlet 210 and the hot water outlet 220 have an effect as protruded to some extent. The hot water inlet 210 and the hot water outlet 220 using a connecting member mounted on the inner circumferential surfaces of the hot water inlet 210 and the hot water outlet 220, respectively, on the outer circumferential surfaces of the hot water inlet 210 and the hot water outlet 220. ) To tighten the hot water inlet 210 and the hot water outlet 220 and the connection member.

Meanwhile, the plastic panel 200 is manufactured by injection molding, and when the injection molding of the plastic panel 200 is performed, the heat pipe 500 is inserted into the plastic panel 200 over the entire surface to be injected. Therefore, the heat pipe 500 is manufactured to be embedded in the plastic panel 200. The heat pipe 500 of the present embodiment used a vibrating tubular heat pipe.

At this time, a part of the heat pipe 500 is provided to be spaced apart from the hot water passage 230 or less than about 1mm or in contact with the hot water passage 230 as much as possible to receive heat from the heating water passing through the hot water passage 230. desirable. When a part of the heat pipe 500 is spaced apart from the hot water passage 230 by about 1 mm or less, even if the material of the plastic panel is a general plastic rather than a thermally conductive plastic, a certain effect can be achieved.

In addition, as shown in FIG. 5, a portion of the heat pipe 500 that receives heat from the hot water passage 230 is provided at an upper portion of the hot water passage 230 to secure more heat transfer area.

 Therefore, when heat is dissipated by the heating water passing through the hot water passage 230, heat is transferred to the heat pipe 500 through the thermally conductive plastic, and the heat pipe 500 is passed through the thermally conductive plastic to the heat sink 100. Transfer heat.

6 to 8 is a plan view of a plastic panel according to another embodiment of the present invention, as shown in Figures 6 to 8 the arrangement of the heat pipe can be a variety of designs, it is not limited thereto.

The above embodiments are merely preferred embodiments of the present invention, and the technical idea of the present invention may be variously changed or adjusted by those skilled in the art, and if such changes or adjustments use the technical idea of the present invention, this is the scope of the present invention. It belongs to.

In the present invention, since a hot water pipe, that is, a hot water passage is formed on the plastic panel, an additional hot water pipe is unnecessary.

In addition, the present invention eliminates the need for a welding operation for contact between the conventional heat pipe and the hot water pipe, thereby making the manufacturing process of the heating panel extremely simple, thereby lowering the manufacturing cost.

In another aspect, the present invention provides a heating panel that does not cause a problem of lowering the heat transfer rate due to a poor welding operation or damage to the welding portion with the passage of time.

1 is a perspective view of a plastic heating panel according to an embodiment of the present invention.

2 is a front view of the plastic panel of FIG.

Figure 3 is a perspective view of the plastic panel of Figure 2 viewed obliquely from the bottom.

4 is a plan view of the plastic panel of FIG.

5 is a longitudinal cross-sectional view taken along the line A-A of FIG.

6 to 8 is a plan view of a plastic panel according to another embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

100: heat sink

200: plastic panel 210: hot water inlet

220: hot water outlet 230: hot water passage

300: insulation

500: heat pipe

Claims (5)

In heating panel for floor heating of building: A plastic panel having a hot water inlet and a hot water outlet formed at a side thereof, and a hot water passage communicating with the hot water inlet and the hot water outlet; And a heat pipe embedded in the plastic panel over the front surface of the plastic panel. Heated plastic heating panel embedded, characterized in that it comprises a. The plastic heating panel according to claim 1, wherein a part of the heat pipe is provided at an upper portion of the hot water passage. The plastic heating panel of claim 1, wherein the plastic panel is integrally formed of a thermally conductive plastic material. 3. The plastic heating panel of claim 2, wherein the flow path cross section of the hot water passage is generally formed in a quadrangle. The plastic heating panel of claim 1, further comprising a heat sink provided on an upper surface of the plastic panel and a heat insulating material provided on a lower surface of the plastic panel.