JPS5930355Y2 - solar collector - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a solar collector, and aims to simplify the structure and improve sealing performance.

In general, a solar collector has a flat box whose top surface is covered with a transparent plate such as glass, in which a number of water pipes and heat collecting plates are installed, and each box has a pair of vertical and horizontal bars. It consists of a frame body with a bottom plate attached.

If rainwater etc. enters the inside of the solar collector, condensation will form on the underside of the transparent plate, clouding the transparent plate, or corroding the heat collecting plate, reducing heat collection efficiency. In order to prevent such problems, the transparent plate and the bottom plate are attached to the frame in a liquid-tight manner, and the six rods forming the frame are also connected to each other in a liquid-tight manner.

However, in the past, when connecting six pieces of wood, the ends of the six pieces were cut diagonally and butted against each other, and the corresponding ends were connected using L-shaped fittings and screws, and a large amount of sawdust was applied from the inside and outside of the connecting part. Since the putty was applied to maintain liquid-tightness, assembly work was time-consuming, and the sealing properties of the putty deteriorated over time, leading to the risk of rainwater entering the solar collector. There was a problem in that the number of parts increased by the use of .

In order to solve the above-mentioned conventional problems, the present invention has been developed to attach a seal to the end surface of one of the first beams, and to connect the inner surface of the end of the second beam to the end surface of the pair of beams forming the corners of the frame body. abut the first
This is fixed to the outer side of the truss by a screw at the end of the second truss, and will be explained next with reference to the drawings.

In Fig. 1, which shows a schematic plan view of the frame of the solar collector according to the present invention, 1, 1 is a horizontal bar, 2, 2 is a vertical bar, and 3 is a central bar, all of which are made of extruded aluminum, for example. ing.

As shown in FIG. 2, which shows the cross section from ■-■ in FIG.
protrudes inwardly (to the right in FIG. 2), and from a position slightly below the 7-lunge 6, the 7-lunge 7 protrudes outward (to the left).

The peripheral edge of a glass plate 10 (transparent plate) is placed on the flange 6 via a seal 8, and the glass plate 10 is pushed downward by a ridge 12 through a seal 11.
has a stepped cross section, with a slight gap 1 for 7 flange 7.
A portion 15 extending across the flange 3 is fastened to the flange 7 by a plurality of screws 16 spaced apart in the longitudinal direction (perpendicular to the plane of the drawing).

The outer edges of the ridges 12 and the flange 7 abut, and the gap 13 is closed from the outside.

A groove 17 is formed between the raised edge 12 and the upper end of the peripheral wall portion 5, and the bottom wall is the 7 flange 7. A drainage hole (not shown) is formed in one or more places of the 7 flange 7 as necessary. ) is provided.

Incidentally, rainwater etc. that have entered into the groove 17 between the seal 11 and the glass plate 10 are discharged to the outside from the gap between the screw 16 and the inner circumferential surface of the screw hole of the flange 7 or from the water drain hole. Three protrusions 20 are integrally formed on the outer circumferential surface of the protrusion 20 at intervals in the vertical direction.

Each protrusion 20 extends in the longitudinal direction of the lateral branch 1 and has a respective tapping groove 21.

A flange 22 projects inward from the lower portion of the peripheral wall portion 5.

A peripheral portion of a bottom plate 24 made of a steel plate is fastened to the lower surface of the 7 flange 22 by a plurality of screws 23 arranged at intervals in the longitudinal direction.

An annular washer 26 (for example, a butyl washer) having a sealing property is installed between the head of the screw 23 and the bottom plate 24.
A strip-shaped seal 27 (for example, butyl sealant) is disposed over the entire length between the bottom plate 24 and the 7 flange 22.

Note that the lower end 28 of the peripheral wall portion protrudes below the 7-lunge 22 and serves as an eaves to prevent rainwater from being sprayed from the side onto the washer 26 and seal 27. A header pipe 30 (water pipe) and a large number of branch pipes 31 (water pipes) branched from the iron pipe 30 are placed through heat insulating materials such as glass wool, which are not covered by heat exchangers, and a heat collecting plate 32 that covers the branch pipes 31 from above. .

The header pipe 30 is pushed downward by a tube leg 33 made of a steel plate, and the upper end of the tube leg 33 is fixed to a downward 7-flange 35 provided at the tip of the flange 6 with a rivet 36.

Similarly to the horizontal branch 1, the vertical beam 2 in FIG. 3, which shows the cross section from ■-■ in FIG. , an outwardly directed 7 flange 47 is provided at a position slightly below the flange 46 , and an outer portion 55 is fixed to the 7 flange 47 by a screw 56 .
Glass plate 1 through seal 48.51 between flange 46
The periphery of 0 is clamped L.

53 and 57 are gaps and grooves, which correspond to the gaps 13 and 13 in Fig. 2, respectively.
It communicates with the groove 17 and has 7 runci 47 (bottom wall of the groove 57).
A drain hole (not shown) is provided as necessary.

An inward 7 flange 62 is provided at the lower part of the peripheral wall portion 45, and the peripheral edge of the bottom plate 24 is located on the lower surface of the 7 flange 62.
As in the case shown in the figure, it is fastened with a plurality of screws 63 via a band-shaped seal 67 and a sealing washer 66.

Both ends of the middle crosspiece 3 rest on the upper surface of the flange 62, and are fastened to the flange 62 using the screws 63 for fixing the bottom plate.

A bottom plate 24 is fixed to the bottom surface of the intermediate portion of the middle crosspiece 3 with screws 80.

81 is a butyl washer (the outer surface of the peripheral wall portion 45 of the vertical beam 2 is flat, and a tapping screw 86 is inserted from the outside into a hole (not shown) provided at a position corresponding to the tapping groove 21 of the horizontal branch 1. It is.

The lower end 68 of the portion 45 projects outward, and the projecting portion 70 is provided with an upwardly opening groove 71 over the entire length of the vertical bar.

As shown in FIG. 4, which is a partially cutaway enlarged view of the part ■ in FIG. screwed in screw 86
A seal 92 is interposed between the end surface 90 and the inner surface 91.

Although it is sufficient to place the seal 92 only on the end face of the peripheral wall portion 5 shown in FIG. Assembling the rods 1 and 2 as shown in Figure 4 will make the assembly process easier.

When seal 92 is made of an elastic material such as methyl sealant, tightening screw 86 causes elastic deformation of seal 92 between end surface 90 and inner surface 910, thereby further improving sealing performance.

As shown in FIG. 5, which is an exploded perspective partial view of the frame, 7 of the vertical beam 2
The ends of the flange 46 and the 7-lunge 62 are cut out at portions corresponding to the flange 6 and flange 22 of the side branch 1.

The edges 12, 52 are cut diagonally at each end and butted.

As explained above, according to the present invention, the end surface 90 of the side branch 1
is butted against the inner surface 91 of the vertical crosspiece 2 and both branches 1 and 2 are connected with screws 86, so that a belt-shaped seal 9 that is easy to handle is created.
2, a sufficient sealing effect can be obtained, the number of parts is reduced to the extent that an L-shaped fitting (connecting fitting) is not required, and the assembly work is also simplified.

The tapping groove 21 in FIG. 2 is located on the outer side of the lateral branch 1,
Since the tapping screws 86 do not protrude inside the frame, there is no risk of rainwater or the like infiltrating into the solar collector through the surroundings of the tapping screws 86, and the installation part of the tapping screws 86 is sealed. Since there is no need to do this, the structure becomes simpler in that respect as well.

When a butyl sealant is used for the seal 92 and the like, it is possible to prevent deterioration of sealing performance due to changes over time.

[Brief explanation of the drawing]

Figure 1 is a schematic plan view of the frame, Figures 2 and 3 are sectional views of ■-■ and ■-■ in Figure 1, respectively, and Figure 4 is a partially cutaway enlarged view of the ■ part in Figure 1. , FIG. 5 is an exploded perspective partial view of the frame. 1...Horizontal bar (1st bar), 2...Vertical bar (
2nd line), 8.11, 27, 48, 51, 67...
...Seal, 10...Glass plate (transparent plate), 2
0... Protrusion (outer surface side part), 24...
- Bottom plate, 86...screw, 90...end face, 91...end inner surface.

Claims (1)

[Scope of utility model registration request] A frame body is formed by vertical and horizontal beams, and among a pair of beams that form the corners of the frame, the inside surface of the end of one of the first beams is inserted through a band-shaped seal on the end surface of the other second beam. The end of the second beam was fixed to the outer side of the first beam with screws, and the transparent plate and bottom plate were attached to the upper and lower surfaces of the frame through band-shaped seals, respectively. Features solar collector.