JPS6238198Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a solar heat collector.

In conventional solar heat collectors, the top cover was formed from a single flat plate to reduce heat loss from the heat collection plate, so a frame was used to secure the top cover and create a seal to prevent water from entering. Because they were worn out, they required time and effort, and the seals were unreliable, causing water leaks and a decrease in heat collection efficiency.

In addition, in order to omit the frame and sealing work and improve sealing performance, it has been considered to mold the top cover into a gate-shaped cross-section using plastic, but the load-bearing deformability of this top cover is insufficient, and furthermore, the top cover cannot be used as a base material. The disadvantage was that it could not be easily installed in a watertight manner.

The present invention was developed in view of the above-mentioned drawbacks. are connected by a pair of groove members, and a drainage hole is provided on the lower side of the groove member to ensure a perfect water closure. That is, in the front and rear side walls of the base body that houses the heat collecting plate, the inner downward grooves of the groove members are bent and have grooves facing upward and downward, respectively, and the inner downward grooves are fitted into the outer upward grooves of the groove members. The top cover is attached to the base by fitting the front and rear walls of the top cover that cover the open top surface of the base, reinforcing the top cover with groove material and sealing the inside of the base. .

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

1, 2, and 3 show one embodiment of the present invention, and the solar heat collector 1 of the present invention is a conventional heat collecting plate 1.
(Fig. 3) to ensure solar heat in the base 2 containing the
In order to reduce heat loss to the atmosphere, a top cover 3 made of glass or plastic and having a substantially inverted U-shaped or semi-cylindrical cross section is attached by groove members 4, 4' having a transverse S-shaped cross section.

Reference numerals 5 and 5' indicate box-shaped end covers that fit on the left and right ends of the heat collector 1, 6 indicates a header pipe of a water tube within the heat collector plate, and 7 and 7 indicate fixing screws, respectively.

The base body 2 is mainly made of foamed polystyrene resin, foamed ABS resin, foamed vinyl chloride resin, etc. to alleviate expansion and contraction due to temperature changes and to reduce weight.
It is molded using a foamed resin material such as foamed polyurethane resin or foamed polyester resin, and the left and right side walls 8, 8' of the base body 2 have almost the same shape as the inverted U-shape or semi-cylindrical cross section of the upper lid 3, It is inscribed in the left and right ends of the upper lid. Near the left and right ends of the front and rear walls 9 and 9' of the base body 2 are header pipes 6, 6...
Receiving grooves 10, 10, . . . for mounting are cut out.

The front and rear pair of groove members 4, 4' fit into the front and rear side walls 9, 9' of the base body 2, respectively, and are the same for both the front and rear, so hereinafter, the front groove member 4 will be referred to as the front groove member 4. I will explain about it. The groove material 4 is divided by a partition wall 11 having the same length as the length of the base body 2 in the left and right direction,
It is a bent groove material having an approximately horizontal S-shaped cross section and having an inner downward groove 12 and an outer upward groove 13. Receiving grooves 10 and 1 of the base body 2 are located near both the left and right ends of the partition wall 11.
Receiving grooves 14, 1 that correspond above and below 0 and overlap
4 is formed with a notch. The downward groove 12 is formed to have the same length as that between the left and right side walls 8, 8' of the base body 2, and the upward groove 13 is formed to have the same length as that between the receiving grooves 14, 14.

15, 15... are holes for fixing screws 7, 7.... A curling ring 16 is provided facing inward to prevent water from seeping in, and is pressed against the outer surface of the front wall of the upper cover while maintaining elasticity. Reference numeral 13a designates drain holes of 5 to 6 mmφ drilled at appropriate intervals at the bottom of the upward groove 13.

The upper lid 3 is a bent plate having a substantially inverted U-shape or a semi-cylindrical shape in cross section and having the same length as the base 2 and is molded from transparent glass or synthetic resin material. Front and rear side walls 1 of top lid 3
7, 17' near the left and right ends of each receiving groove 10,
10..., 14, 14... and corresponding receiving grooves 18,
18... are formed at appropriate locations near the lower ends of the front and rear side walls 17, 17' for mounting the fixing screws 15, 1.
5...corresponding holes 19, 19... are bored.

The base body 2, the upper cover 3, and the groove members 4, 4' are connected by the following steps.
The downward grooves 12 and 12' of each groove material are tightly fitted into the front and rear side walls 9 and 9' of the base body 2, and the inner surfaces of the left and right ends of the upper cover 3 are fitted onto the left and right side walls 8 and 8' of the base body 2. The front and rear side walls 17, 17' of the top cover are placed in close contact with and placed on the
are tightly fitted into the outward upwardly directed grooves 13 and 13' of each of the groove members, and the base body 2 and the upper cover 3 are connected with screws in the holes 15 and 19. End covers 5, 5' are tightly fitted onto the left and right ends of this combination, and screws 7, 7...
When they are fastened together, they are completely watertightly connected, forming the solar heat collector shown in the perspective view of FIG.

For this connection, the heat collecting plate 1', its header pipe 6, heat insulating material 20, and other internal components are installed in advance at predetermined locations within the base body 2. Also, the third
As shown in the figure, the front and rear side walls 17, 17' are in contact with the outer surfaces of the partition walls 11, 11' by about 30 to 40 mm, and their lower ends are floating about 5 to 10 mm from the bottom of the groove 13.

In FIG. 4, the upper end surface of the front (rear) side wall 9 of the base body 2 is made to protrude in an arcuate cross-section to improve the adhesion with the groove material and the upper lid. In the figure, reference numeral 21 denotes a bottom plate mainly made of metal, which is attached to the bottom of the base 2 and fixed to the bottom of the groove material 4 with tap screws 22. According to this embodiment, the solar heat The overall strength of the heat collector 1 is improved.

In the solar heat collector of the present invention, the main components are the base body 2, the upper cover 3, and a pair of groove members 4, 4'.
It can be easily assembled by fitting it into the upper and lower grooves on the inner and outer sides and connecting it with screws.

Therefore, according to the solar heat collector of the present invention, by using the groove members 4 and 4' having a pair of double grooves without using a frame that requires dimensional accuracy, the substrate can be easily fixed without requiring dimensional accuracy. and the top cover can be firmly connected.

The top cover 3 covers the entire open upper surface of the base body with the front and rear side walls tightly fitted into the groove material, and is strongly crimped to the base body by fitting and tightly fitting the front and rear side walls into the outer grooves of the groove material and connecting with screws. , to strengthen the seal.

Since the groove members 4 and 4' are made of a single plate bent in an S shape, they have elasticity and have a large shape resistance, and also closely connect the top cover and the base through the partition wall. so their side walls are reinforced with each other,
Its curved configuration provides a seal and prevents water from leaking.

Rainwater or condensation water adheres to the upper lid 3 and the both side walls 17,
17' will fall to the outside beyond the groove members 4, 4', but even if there is some that enters the groove 13, it will collect at the bottom and drain away from the drain hole 13.
Since it flows down from a to the outside, there is no moisture intrusion into the heat collector. If there is no drain hole 13a and the lower ends of the side walls 17, 17' reach the bottom of the groove 13, the water that has entered will accumulate at the bottom of the groove 13, causing the side walls 17, 17' to join the partition walls 11, 11'. It will enter the heat collector from the surface by capillary action. In the case of this proposal, a distance of 5 to 10 mm is provided between the lower ends of the side walls 17, 17' and the bottom of the groove 13, so even if a small amount of water accumulates in the groove 13, the water will not flow due to capillary action. There is no siphoning.
In addition, moisture due to evaporation of water in the groove 13 is also absorbed by the joint surface.
Since it is 30 to 40 mm, there is no possibility of infiltration. Since the water closure is complete in this way, moisture will not infiltrate into the heat collector even without sealing treatment such as curling 16.

When the upper lid 3 thermally expands, the curling 16 of the groove material 14 deforms and relieves stress, so the upper lid 3
lasts a long time.

As described above, the solar heat collector of the present invention has a simple connection structure, has excellent water closure, and has excellent load-bearing deformability, making it a highly practical idea.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one embodiment of the solar heat collector of the present invention, FIG. 2 is an exploded perspective view of the main parts of the same,
FIG. 3 is a sectional view of the same as the above, and FIG. 4 is a sectional view of another embodiment of the same. DESCRIPTION OF SYMBOLS 1...Solar heat collector, 2...Base body, 3...Top cover, 4...Groove material, 12...Downward groove, 13...Upward groove, 13a...Drain hole.

Claims (1)

[Scope of Claim for Utility Model Registration] The opposing side walls of a base housing a heat collecting plate and an upper cover covering the open surface of the base are respectively fitted into the respective grooves of a groove material having a double groove configuration facing upward and downward. A combined solar heat collector characterized in that a drain hole communicating with the outside is provided at the bottom of the groove into which the upper cover is fitted.