JPH0643617Y2 - Heating panel - Google Patents

Description

[Detailed Description of the Invention] Industrial Application This invention is, for example, placed on the lower surface of the floor of a bathroom unit washing room for floor heating, or placed on the lower surface of the entrance floor for snow melting of the entrance. It relates to the heating panel that can be turned on.

2. Description of the Related Art Conventionally, for example, for floor heating provided on the lower surface of the floor of a bathroom unit washing room, first, a water flow coil that uses hot water from a boiler as a heat source is arranged, and secondly, an electric heater is arranged. Thirdly, a flat box type heat pipe part in which a hot water pipe is passed through the evaporation part (see Japanese Utility Model Laid-Open No. 59-76917) has been known.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, when the water flow coil that uses the hot water from the boiler as the first heat source is arranged, there is a large variation in the floor surface temperature, the cost of the entire system is high, and due to freezing. There was anxiety and there was a problem that maintenance was not easy. Further, when the second electrothermal heater is arranged, there is a problem in electrical safety and the cost of peripheral devices such as a controller is high. Furthermore, when the flat box type heat pipe section is arranged under the third floor and the hot water pipe is passed through the evaporation section, the production of the flat box type heat pipe section is very troublesome, and Since the hot water pipe is not easily attached and the heat pipe portion is box-shaped, there is a problem that pressure resistance is insufficient and heat transfer performance is not sufficient.

The object of the present invention is to solve the above-mentioned problems of the prior art, to have a uniform distribution of the working fluid in the heat pipe section, to have a uniform temperature distribution, to have excellent heat transfer performance, and to improve the temperature of the floor surface. There is very little variation, heating of the floor of the bathroom etc. can be performed very effectively, maintenance is easy, manufacturing is easy and inexpensive, and since no electric heater is used, it can be electrically operated. It is highly safe, does not require peripheral devices such as a controller, is low in cost, has sufficient pressure resistance, and has excellent durability even when it is placed under the floor of a bathroom unit washroom. , In trying to provide a heating panel.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention provides a peripheral bulging portion by stacking two aluminum plates constituting a panel body that is substantially rectangular in a plan view on top of each other. At the same time, a large number of joints are provided in an inner portion surrounded by the peripheral bulging portion, and a central tubular bulging portion that is continuous with the peripheral bulging portion and has a mesh pattern when seen from a plane is provided in the inner portion. , A front downward slope is provided at the front end of the panel body, and the bulging portion of the front side of the slope is opened forward, and the front side bulging portion is made of aluminum and has a both-end closed shape. The header is fitted and fixed in a covering shape so that the peripheral bulging portion and the central tubular bulging portion of the panel body communicate with the header, and the copper hot water pipe having the aluminum coating layer clad on the outer surface is inside the header. Is arranged in the longitudinal direction, the aluminum blocking pieces at both ends of the header are penetrated, the hot water pipe and the blocking pieces at both ends are metallurgically joined, and by injecting a working fluid into the panel body and the header,
The gist of the present invention is a heating panel having a heat pipe section in which the panel body serves as a heat radiation section and the header serves as an evaporation section.

The panel body of the heating panel is made of aluminum roll bond material. Here, the aluminum roll bond material is obtained by printing a pressure-preventing material in a predetermined shape on one of the two aluminum plates and pressing the other plate on this surface, and then non-pressing between the two plates. It is made by a so-called roll bond method in which a fluid pressure is introduced into a part to swell it to form a tubular bulge (for example, Japanese Patent Publication No. 50-556).
(See publication 7).

Action According to the above heating panel, the panel body is made of aluminum
It is made of roll bond, and the rest is almost flat except for the inclined part at the front end, so it can be placed under the floor such as a bathroom, and has sufficient pressure resistance,
It has excellent durability.

Further, since the panel body of the heating panel is provided with the peripheral bulging portion and the central tubular bulging portion having a mesh pattern when viewed from the plane of the inner portion thereof, it is introduced from the header into the panel body. The working fluid smoothly flows into the peripheral bulging portion and the central tubular bulging portion having a mesh pattern, so that the working fluid is uniformly divided and the temperature distribution is uniform. As the working fluid flows smoothly in this way, the pressure loss is small, and the two aluminum plates are stacked on top of each other and the required parts are joined together, resulting in an excellent heat transfer performance. have.

Moreover, since the front downward slope of the front end of the panel body has a steep inclination angle of, for example, about 30 ° with respect to the rest of the panel body, it is heated by the hot water in the hot water pipe in the header, that is, the evaporation section. The vapor of the working fluid that has evaporated passes through the front end inclined part of the panel body and reaches the heat dissipation part (condensing part) side of the panel body, and then the condensed working fluid passes through the front end inclined part and again to the header. Easy to return,
Therefore, the heating panel has excellent heat transfer performance, can uniformly heat the floor of the bathroom, etc., and can very effectively heat the floor.

A hot water pipe made of copper with good corrosion resistance is arranged in the header, but since an aluminum coating layer is provided on this hot water pipe, this is also metallurgically applied to the left and right end blocking pieces of the aluminum header. Can be easily joined,
The heating panel is easy to manufacture. Further, the heating panel is electrically safe because it does not use an electric heater as in the conventional case.

Embodiment Next, an embodiment of the present invention will be described with reference to the drawings.

In this specification, front and rear, left and right are based on FIG. 2,
The front means the left side of Fig. 2, the rear means the same right side, and the left and right sides mean rearward.

1 to 3, a heating panel according to the present invention comprises a panel body (1) made of an aluminum roll bond material that is substantially rectangular in plan view, and an aluminum body fixed to a front end portion of the body (1). Header with both ends closed (2)
And a hot water pipe (4) which is arranged in the header (2) in the lengthwise direction and penetrates through both end blocking pieces (7) and (7). Where aluminum
The panel body (1) made of a roll bond material has a press-bonding prevention material (not shown) printed in a predetermined shape on one of the two aluminum plates (13) and (14), and the other side is printed on this surface. After the plates are crimped, a fluid pressure is introduced into the non-pressurized part between the plates (13) and (14) to swell them to form a swollen part. The two aluminum plates (13) and (14) constituting the panel body (1) are overlapped with each other to provide a peripheral bulging portion (5) and are surrounded by the peripheral bulging portion (5). The inner part is provided with a number of joints (9),
A central tubular bulging portion (6) continuous with the peripheral bulging portion (5) and having a net-like pattern when seen from a plane is provided in the inner portion.

In addition, the central tubular bulging portion (6) of the panel body (1) has a plurality of straight tubular bulging portions (6a) formed at regular intervals in the longitudinal direction of the panel body (1) and between them. It is composed of connecting tubular bulges (6b) formed in a zigzag shape in the width direction. However, this pattern is an example and not a limitation.

Further, as shown in FIG. 2, the front end of the panel body (1) is provided with an inclined part (1a) which is inclined forward and downward at a steep inclination angle of about 30 °. 1a)
The bulging portion (5a) on the front side is opened toward the front, and a header (2) made of aluminum which is closed at both ends is fixed to the front side bulging portion (5a) so as to cover it.
The peripheral bulging portion (5) and the central tubular bulging portion (6) of the panel body (1) are communicated with the header (2).

That is, the header (2) includes a curved portion (2a) having a C-shaped cross section, and a pair of upper and lower opposed flat plate portions (2b) provided on the rear opening edge of the curved portion (2a) so as to project rearward. (2b),
It is composed of closing pieces (7) (7) provided at both left and right ends.
The curved portion (2a) and the upper and lower flat plate portions (2b) (2b) are integrally formed by an aluminum extruded mold material so as to withstand a large pressure.

Then, the inclined part (1a) of the panel body (1) is inserted to the position of the bulging part (5) between the upper and lower flat plate parts (2b) (2b) of the header (2), and the flat plate part (2b) ( The tip portion of 2b) and the bulging portion (5) of the inclined portion (1a) are joined by welding or brazing, that is, metallurgically. Thus, the header (2) is fitted and fixed to the slanted portion (1a) of the panel body (1) so as to cover the peripheral bulging portion (5) and the central tubular bulging portion (6) of the panel body (1). It communicates with the header (2).

In addition, the left and right end blocking pieces (7) and (7) of the header (2) are
It is formed at both left and right ends by disc parts (7a) (7a) that close the circular openings formed at the left and right ends by the curved part (2a) of the header (2) and both upper and lower flat plate parts (2b) (2b). A rectangular plate portion (7b) that closes the rectangular opening, an outer joint portion (7c) that is provided in a bent shape along each outer edge of the circular plate portion (7a) and the rectangular plate portion (7b), and the circular disc portion (7c). 7a) has an inner joint portion (7d) provided in a bent shape in the opposite direction of the outer joint portion (7c) along the hole edge of the tube insertion hole (8).

Then, the outer joint portions (7c) of the left and right end closing pieces (7) and (7) are mounted on the ends of the curved portion (2a) and the upper and lower flat plate portions (2b) and (2b) of the header (2), respectively. They are joined together by welding or brazing, ie metallurgically, and thus the left and right ends of the header (2) are closed by closure pieces (7), (7).

The hot water pipe (4) arranged in the header (2) is made of copper having an aluminum coating layer (3) clad on the outer surface thereof, and the left and right blocking pieces (7) and (7) are inserted through the pipe. It has an outer diameter corresponding to the inner diameter of the holes (8) (8). The hot water pipe (4) is provided with pipe insertion holes (8) at the left and right ends of the header.
By being tightly inserted into (8), it is arranged longitudinally in the header (2) and is welded or brazed to the inner joints (7d) (7d) of the closure pieces (7) (7). Metallurgically bonded.

Here, the hot water pipe (4) is made of copper in consideration of corrosion resistance, and the aluminum coating layer (3) clad on the outer surface of the hot water pipe (4) is made of aluminum closing pieces (7) (7).
It is provided for welding or brazing with metallurgical joining. It should be noted that the hot water pipe (4) may be provided with fins inside the header (2).

A working fluid such as chlorofluorocarbon is injected into each of the panel body (1) and the header (2), and the panel body (1) serves as a heat radiating portion (condensing portion) and the header (2) serves as an evaporating portion. A pipe part is configured.

The heating panel of this invention is manufactured, for example, as follows.

First, prepare a panel main body (1) made of an aluminum roll bond material that is substantially rectangular in plan view. The panel main body (1) has two aluminum plates (13) and (14) superposed on each other. Is provided with a peripheral bulging portion (5), and a large number of joint portions (9) are provided in an inner portion surrounded by the peripheral bulging portion (5) so as to be continuous with the peripheral bulging portion (5). It is provided with a central tubular bulge (6) having a net-like pattern when viewed from the plane. A front downward slope portion (1a) is provided at the front end of the panel body (1), and a bulge portion (5a) at the front side of the slope portion (1a) is opened forward.

Next, between the upper and lower flat plate portions (2b) and (2b) of the header (2), the inclined portion (1a) of the panel body (1) is attached to the front side bulging portion (5).
Inserted up to the position of a), the peripheral bulging portion (5) and the central tubular bulging portion (6) of the header (2) and the panel body (1).
And the brazing filler metal is interposed between the front end portions of the flat plate portions (2b) (2b) and the front side bulging portion (5a) of the inclined portion (1a). Then, the left and right end portions of the upper and lower flat plate portions (2b) and (2b) and the inclined portion (1a) sandwiched between them are crushed. Further, in the header (2), a hot water pipe (4) made of copper having an aluminum coating layer (3) clad on the outer surface is arranged, and the left and right ends of the hot water pipe (4) are respectively disposed.
The aluminum closing pieces (7) and (7) having a brazing layer are fitted and covered. Next, the outer joint portions (7c) of the closing pieces (7) and (7) are fitted on the left and right end processed portions of the header (2), respectively. After each member is set in this way, a brazing process is performed.

Finally, a working fluid is injected into each of the inside of the panel body (1) and the header (2) to form a heat pipe section.

As shown in FIG. 4, the heating panel having the above-described configuration is arranged, for example, on the lower surface of the floor (11a) of the washing room (11) of the bathroom unit (10). In this case, the floor (11a) and the panel body (1) are gently tilted at an inclination of 1 to 2 ° with respect to the horizontal plane, and the heating panel is provided with a heat insulating material (12) except for the contact surface with the floor (11a). ) Is covered.

In the heating panel having the above structure, when hot water is circulated through the hot water pipe (4) in the header (2), the heat causes the working fluid in the header (2) to evaporate, and the steam of the working fluid is
Peripheral bulge (5) of the panel body (1) from the header (2)
And smoothly flow into the central tubular bulge (6) having a mesh pattern, so that the working fluid is evenly divided,
The temperature distribution is uniform. As shown in FIG. 2, the front downward sloped portion (1a) of the front end of the panel body (1) has a steep inclination angle of about 30 ° with respect to the rest of the panel body (1). , The vapor of the working fluid from the header (evaporating part) rises in the inclined part (1a) and easily moves to the heat radiating part (condensing part) side of the panel body (1), and conversely, the condensed working fluid is inclined. It is easy to flow down in the part (1a) and return to the header (2) from the heat radiating part side of the panel body (1), so the heating panel has excellent heat transfer performance, and the bathroom unit (10) can be washed. The floor (11a) of (11) can be heated evenly, and there is very little variation in the floor surface temperature.
The heating of a) can be performed very effectively.

EFFECTS OF THE INVENTION As described above, the heating panel according to the present invention is provided with the peripheral bulging portion formed by stacking the two aluminum plates constituting the panel body, which is substantially rectangular in plan view, with each other, and the peripheral bulging portion is provided. A large number of joints are provided in an inner portion surrounded by the projecting portion, and a central tubular bulging portion that is continuous with the peripheral bulging portion and has a mesh pattern when seen from a plane is provided in the inner portion. The front part is provided with an inclined part facing downward, and the bulging part on the front side of the inclined part is opened toward the front, and the front side bulging part is fitted with a header made of aluminum at both ends to be closed. The peripheral bulging portion and the central tubular bulging portion of the panel body are connected to the header, and the hot water pipe made of copper having the aluminum coating layer clad on the outer surface is fixed in the longitudinal direction in the header. It is arranged to penetrate the aluminum blocking pieces at both ends of the header, and the hot water pipe and the blocking pieces at both ends are metallurgically joined, and by injecting a working fluid into the panel body and the header,
A heat pipe part having a panel body as a heat dissipation part and a header as an evaporation part is configured, and the panel body of the heating panel is made of aluminum roll bond,
And since the rest is almost flat except for the sloped part at the front end, it can be placed under the floor such as a bathroom,
It also has sufficient pressure resistance and has excellent durability.

Further, since the panel body of the heating panel is provided with the peripheral bulging portion and the central tubular bulging portion having a mesh pattern when viewed from the plane of the inner portion thereof, it is introduced from the header into the panel body. The working fluid smoothly flows into the peripheral bulging portion and the central tubular bulging portion having a mesh pattern, so that the working fluid is uniformly divided and the temperature distribution is uniform. Moreover, since the front downward slope of the front end of the panel body has a steep inclination angle of about 30 ° with respect to the rest of the panel body, the working fluid vapor from the header (evaporating section) is It is easy to move to the heat dissipation part (condensing part) side, and conversely, the condensed working fluid easily returns to the header from the heat dissipation part (condensing part) side of the panel body, so the heating panel has excellent heat transfer performance. As a result, the floor of the bathroom or the like can be heated evenly, there is very little variation in floor temperature, and the floor can be heated very effectively. Further, the heating panel is easy to maintain because only the hot water pipe is arranged in the header.

A hot water pipe made of copper with good corrosion resistance is arranged in the header, but since an aluminum coating layer is provided on this hot water pipe, this is also metallurgically applied to the left and right end blocking pieces of the aluminum header. Can be easily joined,
The heating panel is easy to manufacture. In addition, since the heating panel does not use an electric heater as in the past, it is electrically safe and does not require peripheral devices such as a controller.
The cost is low.

[Brief description of drawings]

FIG. 1 is a perspective view of a heating panel showing an embodiment of the present invention,
FIG. 2 is an enlarged cross-sectional view of a part omitted along the line II-II in FIG. 1, FIG. 3 is a cross-sectional view along the line III-III in FIG. 2, and FIG. 4 shows a use state of the product of the present invention. It is a vertical sectional view of a bathroom unit. (1) …… Panel body, (1a) …… Front downward slope, (2) …… Header, (3) …… Aluminum coating layer, (4) …… Copper hot water pipe, (5) …… Peripheral bulge,
(5a) …… Bulging portion on the front side of the inclined portion, (6) …… Central tubular bulging portion, (7) …… Aluminum blocking piece, (8) …… Pipe insertion hole, (9) …… Joining Part, (13) (14) …… Aluminum plate.

Claims (1)

[Scope of utility model registration request] 1. A peripheral bulging portion (5) is provided by stacking two aluminum plates (13) (14) which constitute a panel body (1) which is substantially rectangular in a plan view and which are overlapped with each other. A large number of joints (9) are provided in an inner portion surrounded by the peripheral bulging portion (5), which is continuous with the peripheral bulging portion (5) in the inner portion and has a net-like pattern when seen from a plane. A panel body (1) provided with a bulge (6)
A front downward sloping portion (1a) is provided at the front end portion of the swelling portion, and the bulging portion (5a) of the front side of the sloping portion (1a) is opened forward and the front side bulging portion (5a) A header (2) made of aluminum and closed at both ends is fitted and fixed in a cover shape so that the peripheral bulging portion (5) and the central tubular bulging portion (6) of the panel body (1) are attached to the header (2). An aluminum coating layer (3) that is in communication and is clad on the outer surface
The hot water pipe (4) made of copper having the above is arranged in the header (2) in the longitudinal direction so as to penetrate the aluminum blocking pieces (7) (7) at both ends of the header (2), and the hot water pipe (4) And the both ends blocking pieces (7) and (7) are metallurgically joined, and the panel body (1) serves as a heat dissipation portion and the header (2) is formed by injecting a working fluid into the panel body (1) and the header (2). A heating panel that has a heat pipe that serves as an evaporation unit.