JPH0710503Y2 - Exterior unit for building with solar cell - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] This invention applies to roof tiles, slate, bricks, tiles, outer wall boards, etc.
The present invention relates to a building exterior unit in which a solar cell is mounted on the surface of a building exterior material.

[Conventional technology]

In order to use the solar energy in a building such as a house or a building, a solar cell is mounted on an exterior material for construction and used. 4 and 5 show a conventional example of a building exterior unit in which a solar cell is mounted on a roof material.

The solar cell 2 is attached to the surface of the plate-shaped exterior material 1,
These solar cells 2 are connected to the solar cells 2 of other exterior units stacked on the roof via the connection terminals 3a, 3a ..., 3b, 3b.

The connection terminals 3a, 3a ..., 3b, 3b ... used in the conventional exterior unit for construction with a solar cell are projecting connection terminals 3a, 3a .. .. provided on the back surface of the material 1 and having hole-shaped connection terminals 3b, 3b. They are,
When stacking exterior units one after another and roofing the roof,
The solar cells 2, 2 ... Of the adjacent exterior units are connected to each other by being fitted together.

[Problems that the device tries to solve]

Protrusion-shaped and hole-shaped connection terminals 3a, 3a ... and 3b, 3b as described above
In the combination of ..., The solar cells 2, 2 ... Are connected between the adjacent exterior units only when the upper and lower units are superposed. Therefore, the actual connection state between the solar cells 2 and 2 cannot be directly visually confirmed. For this reason, it is difficult to inspect and maintain the connection state after and during construction.

Therefore, it has been proposed to connect the electrodes of the solar cell by using a connecting material on the upper side of the exterior unit. However, in that case, since the protrusions and the holes are not fitted to each other, there is a possibility that the wiring may be mistaken during the construction, and the exterior units must be mechanically connected separately.

This invention has been made in order to solve the problems of the connecting means in the conventional exterior unit for construction with a solar cell. That is, the connection state of the solar cells can be directly confirmed visually, facilitating inspection, maintenance, etc. during and after construction, and making it difficult to cause connection differences during exterior construction, and mechanically connecting exterior materials. It is an object of the present invention to provide an exterior unit that can be easily combined.

[Means for solving problems]

In the present invention, in order to achieve the above object, in a building exterior unit with a solar cell in which a solar cell 12 is mounted on the surface of an exterior material 11, an exterior material 11 in which other exterior materials 11 are not stacked when mounted on a building. The solar cell 12 is attached to the non-loading portion 11b which is the surface portion of the other exterior material 11 when it is attached to the building.
Stacking part 11a which is the surface part of the exterior material 11 on which the
A pair of connection terminals 13, 13 are arranged at corresponding positions on both sides of the solar cell 12 and the transparent electrodes 18 of the solar cell 12 are connected to these connection terminals 13, 13.
And the back electrode 20 are connected to each other, and the connection terminal 13 and the back electrode connected to the transparent electrode 18 are provided on both sides of the exterior material 11.
(EN) Provided is a building exterior unit with a solar cell, characterized in that connection terminals (13) connected to (20) are arranged in reverse.

[Action]

When using the building exterior unit with a solar cell according to the present invention for roofing, the connection terminals 13, 13 ... Provided on the surface of the exterior material 11 are connected to each other by the connecting wires 15, 15.
At this time, since the terminals 13 connected to the transparent electrode 18 and the connection terminals 13 connected to the back electrode 20 are arranged opposite to each other on both sides of the exterior material 11, a pair of adjacent exterior materials is provided.
The polarities of the electrodes 13, 13 facing each other across the side edge of 11 are opposite to each other. Therefore, as shown in FIG. 1 and FIG. 4, the opposing connecting terminals 13, 13 of the adjacent exterior material 11 may be connected in parallel by the connecting conducting wires 15, 15. As a result, the solar cells 12, 12 ... Of the adjacent exterior units are connected to each other in series. Further, since the two outer casings 11, 11 are connected in parallel to each other by the two connecting conductors 15, 15, it is possible to ensure that they do not shift from each other without separately connecting the outer casings 11, 11. Can be connected.

Since the connection terminals 13, 13 ... Are all on the front surface side of the exterior material 11, the exterior unit 11 is laid on the roof or the like,
The connection state of the solar cells 12, 12 between the exterior units can be directly visually confirmed from the front side of. Moreover,
Since the connecting wires 15, 15 ... Connecting the connecting terminals 13, 13 ... Connect the terminals 13, 13 ... in parallel, even a person who is not familiar with electrical work can definitely connect and check the connection. be able to.

Furthermore, since the connection terminals 13 and 13 are provided in the stacking portion 11a of the exterior material 11, the connection terminals 13 and 13 are connected to the other exterior material 11 in a state where the installation of the exterior material 11 to the building is completed. Since the connection terminals 13 and 13 are covered, rainwater, dust, and the like are less likely to adhere to the connection terminals 13 and 13 even if the connection terminals 13 and 13 are not separately covered, and troubles such as short circuits and disconnections can be prevented. In addition, when performing maintenance such as inspecting the wiring condition and reconnecting,
Since it is only necessary to temporarily remove the other exterior material 11 placed on 11a, maintenance and inspection of the connection portion can be performed very easily.

〔Example〕

Next, with reference to the drawings, an embodiment of the present invention will be described specifically and in detail.

The illustrated exterior material 11 is of a pentagonal flat plate shape, and the upper half thereof has a loading portion 11a on which other exterior materials 11 are stacked.
The other portion is the non-loading portion 11b on which the other exterior material 11 is not stacked. The solar cell 12 is provided on the surface of the non-loading portion 11b.

As the solar cell 12, an amorphous silicon solar cell capable of producing a large area is generally used. For example, as shown in FIG. 3, transparent electrodes 18, 18 ..., Amorphous silicon layers 19, 19 ... and back electrodes 20, 20 ... are laminated on a glass substrate 17, and these are covered with a protective film 21. The glass substrate
Adhesive such as silicone caulking material so that 17 is on the front side 22
Attach to the surface of exterior material 11 with.

Recesses 23, 23 are formed on the front side of the loading section 11a at corresponding positions on the left and right sides of the exterior material 11, and the recesses 23, 2 are formed.
Two connection terminals 13, 13 are provided on each of the three. The illustrated connection terminals 13, 13 are pin-shaped and penetrated from the back surface side to the front surface side of the exterior material 11, and male threads are cut on the portions protruding to the front surface side.

On the other hand, recesses 24, 24 are provided on the left and right sides of the back surface of the outer package 11, and the connection terminals 13, 13 penetrated by the outer package 11 are provided therein.
Is projected at the end. Also, in the recesses 24, 24,
Electrode terminals 25, 25 connected to the transparent electrodes 18, 18 and back electrodes 20, 20 of the solar cell 12 are provided, and these are connected to the connection terminals 13, 13 in the recesses 24, 24, respectively. Has been done. Here, as is apparent from the connection of FIG. 2, the terminal 13 connected to the transparent electrode 18 on the side of the exterior material 11 and the connection terminal connected to the back electrode 20 on the other side of the exterior material 11.
Opposite thirteen. That is, the terminals 13 at the corresponding positions on both sides of the exterior material 11 have polarities different from each other. Further, a recess 26 is also provided in the lower center of the back surface of the exterior material 11.

Explaining the roof construction method using this exterior unit, first, as shown in FIG. 1, in the direction orthogonal to the slope of the roof, that is, along the eaves and ridges of the roof, the loading unit 11
The exterior materials 11 are arranged side by side so that the a side faces up. At this time, as shown in FIG. 4, the left and right recesses 24, 24 are aligned with the recesses 24, 24 of the adjacent exterior material 11, and the connecting connecting wires 13, 15 Connect 13 together. That is, the connecting wires 15, 15 are connected by the nuts 27, 27.
While fitting the joints on both ends of the connection terminals 13 and 13,
It is fixed. At this time, as shown in FIG. 1 and FIG. 4, the connection terminal 1 on the side where the adjacent exterior materials 11 are joined is joined.
3 and 13 are connected in parallel by connecting lead wires 15 and 15.
In this way, the solar cells of the exterior units arranged side by side 1
2, 12, ... are sequentially connected.

On the other hand, for the direction along the slope of the roof, the exterior material of the lower tier
On top of the stacking section 11a of 11, the non-stacking section 11b of the outer casing 11 of the upper stage
Are stacked side by side by shifting by half. As a result, the solar cell 12 is not hidden, but only the connection terminals 13 and 13 and the connecting conductors 15 and 15 are hidden by the upper exterior unit. At this time, the recesses 26 of the upper exterior material 11 correspond to the recesses 23, 23 of the lower exterior materials 11, 11. Further, in this stacked state, the joints of the stacked exterior units do not vertically overlap.

In the case of this embodiment, inspection and maintenance of the connection state of the solar cells 12 between the exterior units can be easily performed by lifting the exterior unit in the upper stage.

[Effect of device]

As described above, according to the present invention, the connection state of the solar cells 12 between the exterior units can be directly confirmed visually. Therefore, inspection, maintenance, and the like during and after construction of the roof become easy. Furthermore, in the adjacent exterior material 11, the connecting terminals 13, 13 facing each other may be connected in parallel, so that a difference in connection during the exterior construction is unlikely to occur. Further, since the connecting material in which the connection terminals 13 and 13 are connected in parallel also serves as a joint for connecting the exterior materials, the exterior materials can be easily connected.

Furthermore, in the case where the connection terminals 13 and 13 are provided in the loading portion 11a of the exterior material 11, rainwater, dust, etc. will not adhere to the connection terminals 13 and 13 without separately covering the connection terminals 13 and 13. Since it can be prevented, there is an advantage that construction can be simplified and troubles of the connection terminals 13 and 13 can be prevented.

[Brief description of drawings]

FIG. 1 is a perspective view of a front side of a building exterior unit with a solar cell showing an embodiment of the present invention, FIG. 2 is a perspective view of a back side of the exterior unit, and FIG. 3 is attached to the exterior unit. Fig. 4 is a conceptual view showing a cross section of the obtained solar cell, Fig. 4 is an enlarged plan view of an essential part of the solar cell showing a connecting portion of the solar cell between the exterior units, and Fig. 5 is a conventional exterior unit for construction with a solar cell. FIG. 6 is a perspective view showing a part of the exterior unit with a part cut away. 11 ... Exterior material, 11a ... Loading section of exterior material, 12 ... Solar cell, 13
… Connection terminals, 18… Transparent electrodes of solar cells, 20… Rear electrodes of solar cells

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-57-211280 (JP, A) Actually opened 60-52639 (JP, U) Actually opened 60-20155 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A building exterior unit with a solar cell in which a solar cell (12) is mounted on the surface of the exterior material (11), wherein the other exterior material (11) cannot be stacked when mounted on a building. ) The solar cell (1
2) is installed and other exterior materials (1
1) A pair of connecting terminals (13), (13) are arranged at corresponding positions on both sides of a loading section (11a) which is a surface portion of an exterior material (11) on which 1) is stacked, and these connecting terminals (13),
The transparent electrode (18) and the back electrode (20) of the solar cell (12) are connected to the (13), and the connection terminals (13) are connected to the transparent electrode (18) on both sides of the exterior material (11). An exterior unit for a building with a solar cell, in which a connection terminal (13) connected to the back electrode (20) is arranged in reverse.