JP-7854833-B2 - Solar cell module

Inventors

• 後藤 直樹
• 大原 貫太
• 藤川 藍
• 辻野 真次

Assignees

• 株式会社カネカ

Dates

Publication Date

20260507

Application Date

20220330

Claims (2)

1. A plurality of solar panels having a rectangular or square shape in plan view, and a frame that supports the plurality of solar panels, The system includes a retainer that is fixed to the frame so as to sandwich adjacent solar panels in the thickness direction of each solar panel , The plurality of solar panels are fixed to the frame in an arrangement that is aligned in one direction or in two orthogonal directions. The frame comprises an outer frame arranged along the outer edge of the plurality of solar panels, and a plurality of inner frames provided to connect at least a first side of the outer frame with a second side opposite to the first side. The inner frame is positioned so as to follow the side edges of each solar panel, and the inner frame has a wall portion that rises parallel to the side edges at a distance from them. The aforementioned retainer is a solar cell module having a projection along the wall portion, the projection of which is located on the side of the wall portion opposite to the solar cell panel .
2. The solar cell module according to claim 1 , wherein the edge of each solar cell panel that is not held by the retaining clip is not fixed to the frame.

Description

This invention relates to a solar cell module in which multiple solar cell panels are supported by a frame. Conventionally, solar cell modules comprising multiple solar cell panels have been proposed (Patent Document 1). This solar cell module includes multiple solar cell panels (modules), a connecting frame that links adjacent solar cell panels, and an outer frame that encloses and supports the multiple solar cell panels. This solar cell module is placed on a mounting structure composed of a base and crossbars. International Publication No. 2016/024310 Figure 1 is a plan view of a solar cell module according to this embodiment.Figure 2 is a perspective view of the solar cell module.Figure 3 is a cross-sectional view taken at position III-III in Figure 1.Figure 4 is a bottom view of the solar cell module.Figure 5 is a perspective view showing the solar cell module installed on the mounting frame.Figure 6 is a perspective view of a modified solar cell module with one solar cell panel removed.Figure 7 is a magnified view of a portion of Figure 6. The embodiments of the present invention will be described below with reference to Figures 1 to 5. As shown in Figure 1, the solar cell module 1 comprises a plurality of solar cell panels 2, each having a rectangular or square shape in plan view, and a frame 3 that supports the plurality of solar cell panels 2. In this embodiment, the solar cell module 1 comprises six solar cell panels 2, and the frame 3 supports the six solar cell panels. The number of solar cell panels 2 in the solar cell module 1 may be two to five, or seven or more. The solar cell module 1 in this embodiment includes fasteners 4 that are fixed to the frame 3 by sandwiching each solar cell panel 2. Furthermore, this solar cell module 1 has a rectangular plate shape in plan view. Each solar cell panel 2 is formed by laminating multiple solar cells, glass material, and sealing material. The multiple solar cell panels 2 are fixed to the frame 3 with their respective long sides 20 adjacent to each other. Alternatively, the multiple solar cell panels 2 are fixed to the frame 3 in a unidirectional arrangement (left-right direction as shown). In this embodiment, the direction in which the long side 20 of each solar cell panel 2 extends coincides with the short side direction of the solar cell module 1. Note that the multiple solar cell panels 2 may also be fixed to the frame 3 in a unidirectional arrangement (for example, left-right direction and vertical direction as shown). As shown in Figure 2, frame 3 supports the long-side edge 200 of each solar cell panel 2, but is positioned separately from the short-side edge 210 without supporting it. This creates a space S between frame 3 and the short-side edge 210 of each solar cell panel 2. In other words, the short-side edge 210 is exposed in the solar cell module 1. In this embodiment, since frame 3 is positioned separately from both the pair of short-side edges 211 and 212 without supporting them, a space S is formed between frame 3 and both of the pair of short-side edges 211 and 212. Note that the space S only needs to be formed in the portion that is on the lower side when the solar cell module 1 is positioned. Furthermore, the frame 3 is positioned at a distance (leaving a space S) from the short-side edge 210 in the longitudinal direction of the solar cell panel 2. Note that the frame 3 may also be positioned at a distance from the short-side edge 210 in the thickness direction of the solar cell panel 2, in addition to the longitudinal direction. A flexible gasket 5 is attached to the long edge 200 of each solar cell panel 2. In this embodiment, gaskets 5 are attached to all of the long edge 200 of each solar cell panel 2 that are adjacent to another solar cell panel 2. As shown in Figure 3, the gasket 5 is in contact with the frame 3. The material of the gasket 5 is, for example, a resin such as rubber. In this configuration, as shown in Figure 5, when the solar cell module 1 is arranged in a typical configuration where one longitudinal end of each solar cell panel 2 (for example, one of the pair of short-side edges 210, specifically the ridge side of the building's roof) is higher (specifically, towards the ridge of the building's roof) and the other end (for example, the other short-side edge 212) is lower (specifically, towards the eaves of the building's roof), moisture and dust that fall onto the light-receiving surface 22 are easily moved to the space S located on the other end of each solar cell panel 2 (see Figure 2). Therefore, the space S formed between the frame 3 and the short-side edges 210 of each solar cell panel 2 can remove moisture from the light-receiving surface 22 and prevent dust from accumulating on the light-receiving surface 22. Furthermore, the friction of the elastic gasket 5 against the frame 3 prevents each solar cell panel 2 from shifting in the longitudinal direction relative to the frame 3, so the space S can be maint