WO2018181289A1

WO2018181289A1 - Solar cell module and terminal box for solar cell module

Info

Publication number: WO2018181289A1
Application number: PCT/JP2018/012395
Authority: WO
Inventors: 佑太西尾; 健一郎隅田
Original assignee: 京セラ株式会社
Priority date: 2017-03-29
Filing date: 2018-03-27
Publication date: 2018-10-04
Also published as: JP6837131B2; JPWO2018181289A1; CN110463032A; CN110463032B

Abstract

This solar cell module is provided with a solar cell panel and a terminal box. The terminal box has a base part on the solar cell panel and a body part engaging with the base part. The base part has a first portion, a second portion, and a first terminal portion. The first portion is positioned in a state of being fixed on the solar cell panel. The second portion is positioned in a state of projecting from the first portion in a direction of separating from the solar cell panel, and includes a portion to be engaged along a toric area. The first terminal portion is positioned in a state in which a conducting wire that is electrically connected to a solar cell is electrically connected. The body part has a third portion and a fourth portion. The third portion is positioned in a state in which a sealed space is formed with the base part, the sealed space accommodating a portion including a second terminal portion, and a portion of the first terminal portion contacting the second terminal portion. The fourth portion includes an engaging portion positioned along a toric area in a state of engaging with the portion to be engaged in a rotatable and removable state.

Description

Solar cell module and terminal box for solar cell module

The present disclosure relates to a solar cell module and a terminal box for the solar cell module.

Some solar cell modules have a terminal box attached to the back side of the solar cell panel. For example, a cable for outputting electricity obtained by photoelectric conversion in the solar cell panel to the outside of the solar cell module is connected to the terminal box (see, for example, JP-A-2008-263198).

A solar cell module and a terminal box for the solar cell module are disclosed.

One aspect of the solar cell module includes a solar cell panel including solar cells and a terminal box located on the surface of the solar cell panel. The terminal box has a base portion and a main body portion. The base portion is located on the surface. The main body is positioned on the base body in a state of being engaged with the base body. The base portion includes a first portion, a second portion, and a first terminal portion. The first portion is located on the surface. The second portion includes an engaged portion that is located in a state protruding from the first portion along a first direction away from the surface and is located along an annular region. The first terminal portion is positioned in a state in which a conductive wire located from the solar cell panel to the region on the surface is electrically connected in a state where the first terminal portion is electrically connected to the solar cell. is doing. The main body has a third portion and a fourth portion. The third part is in a state of accommodating a terminal-containing part including a second terminal part and a part of the first terminal part that is positioned in contact with the second terminal part. It is located in a state where a sealed space is formed with the base portion. The fourth portion includes an engaging portion positioned along an annular region in a state of being engaged with the engaged portion in a rotatable and detachable manner.

One aspect of a terminal box for a solar cell module includes a base portion and a main body portion that can be attached to and detached from the base portion. The base portion includes a first portion, a second portion, and a first terminal portion. The first portion includes a bottom surface for positioning on a surface of a solar battery panel including solar cells. The second portion includes an engaged portion that is located in a state of protruding from the first portion along a first direction opposite to the bottom surface and is located along an annular region. The first terminal portion is a portion for being electrically connected to a conductive wire located from the inside of the solar cell panel to the region on the surface in a state of being electrically connected to the solar cell. is there. The main body has a third portion and a fourth portion. The third part is in contact with the terminal-containing part including the second terminal part and the second terminal part of the first terminal part by mounting the main body part on the base part. A sealed space in a state of accommodating a portion positioned in a state can be formed with the base portion. The fourth portion includes an engaging portion located along an annular region for rotatably and detachably engaging with the engaged portion.

FIG. 1 is a perspective view showing an appearance of an example of a solar cell module according to the first to fourth embodiments and the seventh to ninth embodiments. FIG. 2 is a plan view showing an appearance of an example of the solar cell module according to the first to fourth embodiments and the seventh to ninth embodiments as viewed from the front side. FIG. 3 is a plan view showing an external appearance of an example of the solar cell module according to the first to fourth embodiments and the seventh to ninth embodiments as viewed from the back side. FIG. 4 is an exploded perspective view showing an example of the configuration of the IV part in FIG. 1 in an enlarged manner. FIG. 5A is an exploded end view showing a cut surface of the terminal box along the line VV in FIG. FIG. 5B is an end view showing a cut surface of the terminal box along the line VV in FIG. Fig.6 (a) is an exploded perspective view which shows an example of the part corresponding to IV part of FIG. 1 among the solar cell modules which concern on 2nd Embodiment. FIG. 7A is an exploded end view showing a cut surface of the terminal box along the line VII-VII in FIG. FIG. 7B is an end view showing a cut surface of the terminal box along the line VII-VII in FIG. FIG. 8A is an exploded end view showing a cut surface corresponding to the cut surface along the line VII-VII in FIG. 6 in the example of the terminal box according to the third embodiment. FIG. 8B is an end view showing a cut surface corresponding to the cut surface along the line VII-VII of FIG. 6 in the example of the terminal box according to the third embodiment. Fig.9 (a) is a top view which shows the external appearance seen from the main-body part side of an example of the base | substrate part of the terminal box which concerns on 4th Embodiment. FIG. 9B is a plan view showing the appearance of an example of the main body portion of the terminal box according to the fourth embodiment viewed from the base portion side. FIG. 10A is a perspective view showing an appearance of an example of the first terminal portion of the base portion according to the fourth embodiment. FIG. 10B is a perspective view illustrating an appearance of an example of the second terminal portion of the main body according to the fourth embodiment. FIG. 11A is an exploded end view showing a cut surface corresponding to the cut surface along the line VII-VII in FIG. 6 in the example of the terminal box according to the fourth embodiment. FIG.11 (b) is an end elevation which shows the cut surface corresponding to the cut surface along the VII-VII line of FIG. 6 of an example of the terminal box concerning 4th Embodiment. FIG. 12 is a perspective view showing an appearance of an example of a terminal box according to the fifth embodiment. FIG. 13 is an exploded perspective view showing a configuration of an example of a terminal box according to the sixth embodiment. FIG. 14 is an exploded perspective view showing an example of a portion corresponding to the IV part of FIG. 1 in an example of the solar cell module according to the seventh embodiment. FIG. 15A is a plan view showing an appearance of an example of a base body portion of a terminal box according to the seventh embodiment viewed from the main body portion side. FIG. 15B is a plan view showing an appearance of an example of a main body portion of a terminal box according to the seventh embodiment as viewed from the base portion side. FIG. 16 is an exploded end view showing a cut surface corresponding to the cut surface along the line VV of FIG. 4 in the example of the terminal box according to the eighth embodiment. FIG. 17 is an exploded end view showing a cut surface corresponding to the cut surface along the line VV of FIG. 4 in the example of the terminal box according to the ninth embodiment. FIG. 18 is an exploded perspective view showing an example of a portion corresponding to the IV part of FIG. 1 in the example of the solar cell module according to the tenth embodiment. FIG. 19 is an exploded end view showing a cut surface of the terminal box along the line XIX-XIX in FIG.

In the solar cell module, a resin terminal box is generally attached to the back surface of the solar cell panel in order to output electricity obtained by photoelectric conversion to the outside. A conductive wire electrically connected to the photoelectric conversion unit is connected to the terminal box, and a cable in which an electric wire for outputting electricity is covered with a resin is connected. The terminal box may contain a bypass diode. This bypass diode is a solar cell whose internal resistance is increased due to a decrease in the amount of received light when a plurality of solar cell groups each including a plurality of solar cells connected in series are further connected in series. Current can be passed to avoid cells. Thereby, the heat_generation | fever of a photovoltaic cell can be reduced.

By the way, the solar cell module is required to have improved durability so that it can be used for a long time. For this reason, for example, it is conceivable to increase the moisture resistance of the solar cell module by sandwiching the photoelectric conversion part between two glass substrates from both the front side and the back side.

However, even if the durability of the solar cell panel is improved, the terminal box, the bypass diode housed in the terminal box, the cable connected to the terminal box, etc. are more suitable than the solar cell panel depending on the usage environment. Deterioration tends to be accelerated, making it difficult to use for a long time. For this reason, for example, the terminal box, the bypass diode housed in the terminal box, the cable connected to the terminal box, and the like may be required to be replaced during the long-term use of the solar cell module.

Therefore, there is room for improvement in terms of facilitating long-term use of the solar cell module and the terminal box for the solar cell module.

Therefore, the inventors of the present application have created a technique for making the solar cell module and the terminal box for the solar cell module easy to reuse for a long period of time and making the solar cell module easy to reuse.

In the following, each embodiment will be described with reference to the drawings. In the drawings, parts having similar configurations and functions are denoted by the same reference numerals, and redundant description is omitted in the following description. Further, since the drawings are schematically shown, some of the components may be omitted. For example, FIGS. 5A, 5B, 7A, 7B, 8A, 8B, 11A, 11B, In FIG. 16, FIG. 17, and FIG. 19, the terminal box is shown in an end view, but the solar cell panel is shown in a sectional view for convenience. 1 to 19 are provided with a right-handed XYZ coordinate system. In this XYZ coordinate system, the longitudinal direction on the back surface Sf2 of the solar cell module 1 to be described later is the + X direction, the short direction on the back surface Sf2 is the + Y direction, and the normal direction of the front surface Sf1 of the solar cell module 1 to be described later Is the + Z direction.

<1. First Embodiment>
<1-1. Configuration of solar cell module>
The solar cell module 1 according to the first embodiment will be described with reference to FIGS. 1 to 5B. As shown in FIGS. 1 to 3, the solar cell module 1 includes, for example, a solar cell panel 2 and a terminal box 3. Moreover, the solar cell module 1 is provided with conducting wires W1a, W1b, W1c, W1d, W1e, and W1f.

As shown in FIGS. 1 to 5B, the solar cell panel 2 includes, for example, a surface protection member 21, a surface side sealing material 22, a photoelectric conversion unit 23, a back surface side sealing material 24, And a back surface protection member 25. In the example of FIGS. 1 to 5B, the surface on the + Z direction side of the surface protection member 21 is a surface (also referred to as a front surface) Sf1 to which external light such as sunlight is irradiated. Further, the surface on the −Z direction side of the back surface protection member 25 is a surface (also referred to as a back surface) Sf2 located on the opposite side of the front surface Sf1. The outer peripheral part connecting the front surface Sf1 and the back surface Sf2 of the solar cell panel 2 may be in a state where the frame is attached or may be in a state where the frame is not attached.

The surface protection member 21 can protect the photoelectric conversion unit 23 from the front surface Sf1 side, for example. The surface protection member 21 has translucency with respect to light with a wavelength in a specific range, for example. As the wavelength in the specific range, for example, a wavelength of light that can be photoelectrically converted by the photoelectric conversion unit 23 is employed. As the surface protection member 21, for example, a plate-like member (also referred to as a first plate-like member) is used. If a resin such as glass or acrylic or polycarbonate is applied to the material of the first plate member, for example, the surface protection member 21 having water shielding properties and translucency for light in a specific range of wavelengths is realized. . Specifically, as the surface protection member 21, for example, a flat plate member having a rectangular shape on both the front surface and the back surface and a thickness of about 1 mm to 5 mm is employed.

The back surface protection member 25 is positioned in a state of facing the front surface protection member 21, for example. The photoelectric conversion unit 23 exists in a region G 2 (also referred to as a gap region) between the front surface protection member 21 and the back surface protection member 25. For this reason, the back surface protection member 25 can protect the photoelectric conversion part 23 from the back surface Sf2 side. For example, the back surface protection member 25 may have a light-transmitting property with respect to light having a specific range of wavelengths, or may not have a light-transmitting property with respect to light having a specific range of wavelengths. As the back surface protection member 25, for example, a flexible sheet-like member (also referred to as a sheet member) or a plate-like member (also referred to as a second plate-like member) is employed. For example, resin is applied to the material of the sheet member. Moreover, as a raw material, a shape, and thickness of a 2nd plate-shaped member, the thing similar to the raw material, shape, and thickness of a 1st plate-shaped member can be employ | adopted, for example.

For example, the front surface side sealing material 22 is in a state of covering the photoelectric conversion unit 23 from the surface protection member 21 side, and being filled between the surface protection member 21 and the photoelectric conversion unit 23. ing. Examples of the material of the surface side sealing material 22 include polyester resins such as ethylene vinyl acetate copolymer (EVA), triacetyl cellulose (TAC), and polyethylene naphthalate, which are excellent in translucency for light in a specific range of wavelengths. Etc. apply. Moreover, the back surface side sealing material 24 is the state which has covered the photoelectric conversion part 23 from the back surface protection member 25 side, for example, and is filled between the back surface protection member 25 and the photoelectric conversion part 23. positioned. In other words, the gap region G2 located between the front surface protection member 21 and the back surface protection member 25 is filled with, for example, a sealing material that covers the photoelectric conversion unit 23. positioned. For example, a material similar to the material of the front surface side sealing material 22 can be applied to the material of the back surface side sealing material 24.

The photoelectric conversion unit 23 includes N (N is an integer of 1 or more) solar cells CE2 that can convert incident sunlight into electricity. As the solar cell CE2, for example, a crystalline solar cell or a thin film solar cell can be adopted. In the example of FIGS. 2 and 3, a solar cell of crystalline silicon is adopted as the solar cell CE2. And 24 solar cells CE2 are positioned in a state where they are electrically connected in series by the connecting conductor T1. Specifically, the photoelectric conversion unit 23 includes four solar battery cell groups Sg1, Sg2, Sg3, and Sg4. In each solar cell group Sg1, Sg2, Sg3, Sg4, the six solar cells CE2 arranged along the + X direction are positioned in a state of being electrically connected in series by the connection conductor T1. Furthermore, the four solar cell groups Sg1, Sg2, Sg3, Sg4 are positioned in a state where they are electrically connected in series by the connection conductor T1 in a state where they are arranged in the + Y direction.

The conducting wires W1a, W1b, W1c, W1d, W1e, and W1f are located from the solar cell panel 2 to the region on the surface of the solar cell panel 2, respectively. In the example of FIG. 2, FIG. 3, FIG. 5 (a) and FIG. 5 (b), each of the conducting wires W1a, W1b, W1c, W1d, W1e, W1f is in a state of being electrically connected to the solar cell CE2. It is located from the solar cell panel 2 to the region on the surface of the solar cell panel 2. Each conducting wire W1a, W1b, W1c, W1d, W1e, W1f is in a state of being made of a material having excellent conductivity such as copper. As each conducting wire W1a, W1b, W1c, W1d, W1e, W1f, for example, a copper foil is employed. Further, for example, if a copper foil coated with solder is adopted as each of the conductive wires W1a, W1b, W1c, W1d, W1e, W1f, it is easy to solder the conductive wires W1a, W1b, W1c, W1d, W1e, W1f. It is. Each conducting wire W1a, W1b, W1c, W1d, W1e, W1f is located in a state where it is connected to the terminal box 3 located on the back surface Sf2 through the hole Th1 of the back surface protection member 25, for example. Yes. Here, for example, insulating sheets I1a, I1b, I1c, and I1d may be positioned between the conductive wires W1a, W1b, W1c, W1d, W1e, and W1f and the photoelectric conversion unit 23. Thereby, it is hard to produce the short circuit by contact with each electrode W1a, W1b, W1c, W1d, W1e, W1f, and the electrode of the photovoltaic cell CE2.

In the example of FIGS. 2 and 3, the first conductive wire W1a and the second conductive wire W1b are electrically connected to the solar cell group Sg1. It is located in a state where the third conductor W1c is electrically connected to the solar cell group Sg2, and is located in a state where the fourth conductor W1d is electrically connected to the solar cell group Sg3. Yes. Furthermore, the conducting wire W1c and the conducting wire W1d are located in a state where they are electrically connected via the connecting conductor T1. In addition, for example, an insulator such as polyethylene terephthalate (PET) is sandwiched between the intersection of the conductor W1b and the connection conductor T1 and the intersection of the conductor W1e and the connection conductor T1. Yes. As a result, the conductors W1b, W1e and the connection conductor T1 are insulated. The fifth conductive wire W1e and the sixth conductive wire W1f are electrically connected to the solar cell group Sg4. The six conductors W1a, W1b, W1c, W1d, W1e, and W1f may be positioned in a state where they are inserted through different hole portions Th1, respectively. Further, two or more of the six conductors W1a, W1b, W1c, W1d, W1e, and W1f may be positioned in a state in which one hole Th1 is inserted. Each hole Th1 is sealed with a sealing material such as a butyl resin or a polyisopropylene resin in a state where the conductive wires W1a, W1b, W1c, W1d, W1e, and W1f are inserted. Is in a state.

The terminal box 3 is a so-called junction box. The terminal box 3 is positioned on the surface of the solar cell panel 2 as shown in FIG. In the example of FIG. 1 to FIG. 5B, the four

terminal boxes

3 a, 3 b, 3 c, 3 d are positioned in a state where they are fixed on the back surface Sf 2 of the solar cell panel 2. Each

terminal box

3a, 3b, 3c, 3d can be fixed to the back surface Sf2 by adhesion using, for example, a silicon-based adhesive. As shown in FIG. 1, the output cables C 1 for outputting electricity generated in the photoelectric conversion unit 23 are positioned in the

terminal boxes

3 a and 3 d in a state where they are electrically connected. In the example of FIG. 1, the output cable C1a is located in a state where it is electrically connected to the terminal box 3a. In the terminal box 3a, the cable C1a and the conducting wire W1a are positioned in an electrically connected state. The output cable C1d is located in a state where it is electrically connected to the terminal box 3d. In the terminal box 3d, the cable C1d and the conducting wire W1f are located in an electrically connected state. Here, for example, when the cable C1a is a positive cable, the cable C1d is a negative cable. For example, when the cable C1a is a negative cable, the cable C1d is a positive cable.

<1-2. Terminal box>
The

terminal boxes

3b and 3c will be described with reference to FIGS. 4, 5A, and 5B. The terminal box 3b and the terminal box 3c have the same structure. For this reason, here, the terminal box 3b will be described as an example.

As shown in FIG. 4, FIG. 5A and FIG. 5B, the terminal box 3 b includes a base portion 31 and a main body portion 32.

The base portion 31 is located on the surface of the solar cell panel 2. As shown in FIGS. 4, 5A, and 5B, the base portion 31 includes a first portion P1, a second portion P2, and a first terminal portion Tm1.

1st part P1 is located in the state fixed on the surface of the solar cell panel 2. FIG. Here, for example, in a state before the terminal box 3 b is fixed to the solar cell panel 2, the first portion P 1 includes a bottom surface for fixing to the surface of the solar cell panel 2. In the example of FIGS. 4, 5A, and 5B, the first portion P1 is positioned in a state of surrounding the opening on the back surface Sf2 side of the hole Th1 of the back surface protection member 25. . Here, the first portion P1 has an annular shape. Further, the first portion P1 is positioned in a state of being fixed on the back surface Sf2 of the back surface protection member 25 with, for example, a silicon-based adhesive Ad1.

The second portion P2 is located in a state of protruding from the first portion P1 along a first direction (in the first embodiment, −Z direction) that is separated from the surface of the solar cell panel 2. Here, for example, in a state before the terminal box 3b is fixed to the solar cell panel 2, the second portion P2 is along the first direction (−Z direction) opposite to the bottom surface of the first portion P1. It is located in a state protruding from the first portion P1. The second portion P2 includes an annular region (also referred to as a first annular region) S11 and an engaged portion En1 positioned along the first annular region S11. In the example of FIGS. 4, 5A, and 5B, the first annular region S11 has a cylindrical shape centered on a virtual axis Ax2 along the first direction (−Z direction). have. And the to-be-engaged part En1 is located along the outer peripheral part of 1st annular | circular shaped area | region Sl1. In other words, the engaged portion En1 has the form of a male screw. Further, in the second portion P2, the portion on the + Z direction side is open. Further, the second portion P2 includes a bottom portion Bt1 that is located in a state of closing the portion on the −Z direction side of the first annular region S11.

In the first embodiment, for example, the first part P1 and the second part P2 have an integral configuration. For example, a resin or the like is applied to the material of the first part P1 and the second part P2. In this case, the first part P1 and the second part P2 can be manufactured by, for example, integral molding of resin.

The first terminal portion Tm1 is located in a state where the conductive wires W1b and W1c are electrically connected. Here, for example, in a state before the terminal box 3b is fixed to the solar cell panel 2, the first terminal portion Tm1 is a portion for being electrically connected to the conducting wires W1b and W1c. For this reason, for example, after the solar cell panel 2 is manufactured, the conductive wires W1b and W1c can be connected to the first terminal portion Tm1, and the base portion 31 can be attached on the surface of the solar cell panel 2. The first terminal portion Tm1 is made of a conductor such as metal, for example. In the example of FIGS. 5A and 5B, the first terminal portion Tm1 is located in a state of penetrating the bottom portion Bt1 of the second portion P2. The first terminal portion Tm1 is located in a state where the conductive wires W1b and W1c are electrically connected in the internal space of the second portion P2.

The main body 32 is positioned on the base 31 in a state of being engaged with the base 31. As shown in FIG. 4, FIG. 5A and FIG. 5B, the main body portion 32 includes a third portion P3 and a fourth portion P4.

The third portion P3 is positioned in a state in which the sealed space Sc1 is formed in cooperation with the base portion 31. In other words, the third portion P 3 can form the sealed space Sc 1 in cooperation with the base portion 31 by mounting the main body portion 32 on the base portion 31. The third portion P3 has, for example, a cup shape having a cylindrical side portion Sp1 and a circular bottom portion Bt2. The sealed space Sc1 is in a state where a portion including the second terminal portion Tm2 (also referred to as a terminal-containing portion) is accommodated. In the sealed space Sc1, the second terminal portion Tm2 is positioned in contact with the first terminal portion Tm1. In other words, the sealed space Sc1 includes a terminal-containing portion including the second terminal portion Tm2 and a portion located in a state where the second terminal portion Tm2 of the first terminal portion Tm1 is in contact. Being housed. Here, for example, a portion of the first terminal portion Tm1 that is located in a state of protruding from the bottom Bt1 in the −Z direction is in contact with the second terminal portion Tm2. The terminal-containing portion can include, for example, a diode Bd1 described later.

The diode Bd1 is a so-called bypass diode. For example, in one of the set of solar cell groups Sg1 and Sg2 that are connected in series and the set of solar cell groups Sg3 and Sg4 that are connected in series, a decrease in the amount of received light The internal resistance may increase due to the above. In such a case, the diode Bd1 can pass a current so as to avoid a group of solar cells having a high internal resistance in order to avoid the heat generation of the solar cell CE2. In the first embodiment, the second terminal portion Tm2 is an electrode located in a state of being exposed to the outside of the diode Bd1. In the example of FIG. 4, FIG. 5A and FIG. 5B, the second terminal portion Tm2 is a portion located in a recessed state so that the first terminal portion Tm1 is fitted. For example, the second terminal portion Tm2 is in a state of being made of a conductor such as metal, like the first terminal portion Tm1.

The fourth portion P4 includes an annular region (also referred to as a second annular region) Sl2, and an engagement portion En2 located along the second annular region Sl2. In the example of FIGS. 5A and 5B, the second annular region S12 has a cylindrical shape centered on a virtual axis Ax2 along the first direction (−Z direction). ing. And the engaging part En2 is located along the inner peripheral part of 2nd annular area | region Sl2. In other words, the engagement portion En2 has a female screw shape. The engaging portion En2 can be engaged with the engaged portion En1 in a rotatable and detachable state. For this reason, the main body 32 can be attached to and detached from the base 31. As shown in FIG. 5 (b), when the terminal box 3b is completed, the engaging portion En2 is engaged with the engaged portion En1 in a rotatable and detachable state. Located in the state. At this time, for example, the base portion 31 and the main body portion 32 are in close contact with each other due to the engagement between the engaging portion En2 and the engaged portion En1. Thereby, for example, the sealed space Sc 1 can be formed by the base portion 31 and the main body portion 32.

If the said structure is employ | adopted, for example, after manufacturing the solar cell panel 2, attaching the base | substrate part 31 on the surface of the solar cell panel 2, and engaging the main-body part 32 with this base | substrate part 31 by rotation, The terminal box 3b can be completed. Thereby, the terminal box 3b can be easily attached to the solar cell panel 2, for example. For example, the main body 32 can be detached from the base 31 fixed to the solar cell panel 2 by rotation. For this reason, for example, the main body 32 can be easily replaced. Thereby, for example, the solar cell module 1 and the terminal box 3b for the solar cell module 1 can be easily used for a long period of time. Moreover, the solar cell module 1 can contribute to reuse of the solar cell module 1 by exchanging the main body portion 32 of the terminal box 3b and repairing and reproducing the solar cell module 1. In addition, for example, in the portion different from the portion where the first terminal portion Tm1 and the second terminal portion Tm2 are connected, the engagement portion En2 and the engaged portion En1 are engaged, The main body 32 can be attached to the base body 31. Thereby, for example, it is difficult for a load caused by an external force or the like to be applied to a portion where the first terminal portion Tm1 and the second terminal portion Tm2 are connected.

Here, for example, if the terminal-containing portion includes the diode Bd1, the diode Bd1 that functions as a bypass diode for the solar cell module 1 may be detachable from the base portion 31. Thereby, for example, the main body 32 can be detached from the base body 31 by rotation, and the diode Bd1 can be easily replaced. As a result, for example, in the solar cell module 1, it is easy to solve the problems associated with the deterioration of the diode Bd1.

Incidentally, here, for example, the diode Bd1 as the terminal-containing portion may be positioned in contact with the third portion P3 in the first direction (−Z direction). In this case, for example, when the main body portion 32 is mounted on the base portion 31, the second terminal portion Tm2 can be pressed against the first terminal portion Tm1 by pressing the main body portion 32 against the base portion 31. . For this reason, for example, the electrical connection between the first terminal portion Tm1 and the second terminal portion Tm2 can be easily and accurately realized without using a special jig or the like.

<1-3. Summary of First Embodiment>
In the solar cell module 1 and the

terminal boxes

3b and 3c according to the first embodiment, for example, after the solar cell panel 2 is manufactured, the base portion 31 is attached on the surface of the solar cell panel 2, and the main body portion is attached to the base portion 31. 32 can be engaged by rotation. Thereby, the terminal box 3b can be easily attached to the solar cell panel 2, for example. In addition, for example, the main body 32 can be detached from the base body 31 that is fixed to the solar cell panel 2 by rotation. For this reason, for example, the main body 32 can be easily replaced. Thereby, for example, the solar cell module 1 and the terminal box 3b for the solar cell module 1 can be easily used for a long period of time.

<2. Other embodiments>
The present disclosure is not limited to the first embodiment described above, and various modifications and improvements can be made without departing from the scope of the present disclosure.

<2-1. Second Embodiment>
In the first embodiment, with the terminal box 3b as a basic configuration, for example, as shown in FIG. 6, FIG. 7 (a) and FIG. 7 (b), the terminal box 3b is positioned in a state of being fitted in the hole Th1. It may be changed to the terminal box 3bA having the protruding portion Pr1. Specifically, for example, the terminal box 3bA may include a base portion 31A having a configuration in which a convex portion Pr1 is added to the base portion 31 of the terminal box 3b. In the example of FIGS. 6, 7A and 7B, the convex portion Pr1 is an annular portion located in a state protruding from the + Z side portion of the base portion 31A in the + Z direction. For example, the convex portion Pr1 can be fitted into the hole Th1 by being inserted along the inner periphery of the hole Th1.

Here, for example, a plate having a hole Th1 positioned in a state in which the back surface protection member 25 penetrates in a second direction (+ Z direction) opposite to the first direction (−Z direction). If the base portion 31A is attached to the back surface protection member 25, the convex portion Pr1 is fitted in the hole Th1. Thereby, for example, the base portion 31 A can be firmly fixed to the plate-like back surface protection member 25. As a result, for example, any of an external force when the main body 32 is engaged with the base portion 31A by rotation and an external force due to contact of a tool or a jig in the installation work of the solar cell module 1 acts on the base portion. The base portion 31 A is unlikely to fall off from the back surface protection member 25. Further, for example, by attaching the convex portion Pr1 of the base portion 31A to the hole Th1 of the back surface protection member 25, the attachment position of the base portion 31A with respect to the back surface protection member 25 can be easily determined.

<2-2. Third Embodiment>
In each of the embodiments described above, the terminal boxes 3b and 3bA are used as a basic configuration to close the gap between the base portion 31B and the main body portion 32B as shown in FIGS. 8A and 8B, for example. It may be changed to the terminal box 3bB further provided with the packing member Pk1 positioned in the state. As the material of the packing member Pk1, for example, a material that can be elastically deformed such as butyl rubber and has excellent weather resistance is used. If such a configuration is adopted, for example, it becomes difficult for moisture to enter the terminal box 3bB from the gap between the base portion 31B and the main body portion 32B.

Here, for example, as shown in FIGS. 8A and 8B, the base portion 31B is positioned in a state of protruding toward the main body portion 32B with the base portion 31A as a basic configuration. An annular portion (also referred to as an annular projecting portion) Pr2 may be added. In the example of FIGS. 8A and 8B, the annular projecting portion Pr2 is located along the outer peripheral portion of the surface on the −Z direction side of the bottom portion Bt1. At this time, for example, as shown in FIG. 8A and FIG. 8B, the main body 32B is positioned in a state where the packing member Pk1 is held with the main body 32 as a basic configuration. An annular portion (also referred to as an annular holding portion) Hp1 may be added. In the examples of FIGS. 8A and 8B, the annular holding portion Hp1 is located along the inner peripheral surface of the cylindrical side portion Sp1. At this time, for example, the packing member Pk1 may be positioned in contact with the annular projecting portion Pr2. Here, for example, the packing member Pk1 is held in the main body portion 32B. Therefore, for example, the packing member Pk1 can be easily replaced by detaching the main body 32B from the base 31B and attaching a new main body 32B to the base 31B.

Further, here, for example, as shown in FIG. 8A and FIG. 8B, the annular holding portion Hp1 is an annular shape located in a state of being recessed in the first direction (−Z direction). A portion (also referred to as an annular recess) Cg1 may be used. At this time, for example, the packing member Pk1 may be located in the annular recess Cg1. Then, for example, the annular projecting portion Pr2 may be positioned in a state where it is in contact with the packing member Pk1 in the annular recess Cg1. If such a configuration is adopted, for example, when the main body portion 32B is mounted on the base body portion 31B, the main body portion 32B is positioned relative to the base body portion 31B by an operation of inserting the annular projecting portion Pr2 into the annular recess portion Cg1. It can be easily realized.

<2-3. Fourth Embodiment>
In each of the above embodiments, the terminal box 3b, 3bA, 3bB is a basic configuration. For example, as shown in FIGS. 11A and 11B, the third part P3 and the diode Bd1 as the terminal-containing part The terminal box 3bC may be changed to a state in which the fourth member P4 and the fourth member P4 are integrally formed. Here, for example, the state in which the third portion P3 and the diode Bd1 are integrally configured by one or more of various methods such as bonding, adhesion, connection, engagement, fitting, and fastening. Alternatively, the fourth portion P4 and the diode Bd1 may be integrally configured. Here, the terminal box 3bC has a base portion 31C and a main body portion 32C as shown in FIGS. 9A and 9B, for example. When the base portion 31C is viewed through in a second direction (+ Z direction) opposite to the first direction (−Z direction) based on the base portion 31B, the first terminal portion Tm1C is virtually It is changed so as to be located along a circular imaginary line Vc1 centering on the axis Ax2. The main body portion 32C has a circular imaginary line with the second terminal portion Tm2C centered on the virtual axis Ax2 when viewed from above in the first direction (−Z direction) with the main body portion 32B as a basic configuration. It is changed so that it may be located along Vc1. At this time, for example, the fourth portion P4 may be positioned so as to be rotatable about the virtual axis Ax2 with respect to the second portion P2.

If such a configuration is adopted, for example, when the main body 32C is rotated about the virtual axis Ax2, a large moment of force may be generated in the second terminal portion Tm2C. Thereby, for example, the first terminal portion Tm1C and the second terminal portion Tm2C are more reliably electrically connected to each other by a structure in which the first terminal portion Tm1C and the second terminal portion Tm2C are firmly contacted or fitted. It becomes possible. As a result, for example, even if the power obtained by the power generation in the solar cell panel 2 is increased, it is difficult to cause a problem that an arc is caused to fly due to a high electric resistance at a contact portion between the first terminal portion Tm1C and the second terminal portion Tm2C. .

Here, for example, as shown in FIG. 9A, FIG. 10A, FIG. 11A, and FIG. 11B, the first terminal portion Tm1C is the first terminal portion Tm1. The basic configuration may be changed to a terminal portion (also referred to as a bent terminal portion) positioned in a bent state. At this time, the first terminal portion Tm1C is bent, for example, from the first plate-like portion Pl1 positioned in a state extending along the first direction (−Z direction), and the first plate-like portion Pl1. And a second plate-like portion Pl2 which is located in a state of extending in the direction. In the example of FIG. 9A, FIG. 10A, FIG. 11A, and FIG. 11B, the first terminal portion Tm1C is a third plate having a hole Th2 to be fastened to the bottom portion Bt1. And a fourth plate-like part Pl4 located in a state of penetrating the bottom part Bt1.

Further, for example, as shown in FIG. 9B, FIG. 10B, FIG. 11A, and FIG. 11B, the second terminal portion Tm2C is replaced with the second terminal portion Tm2. The basic configuration may be changed to a configuration including the locked terminal portion Fk1. At this time, the locked terminal portion Fk1 is in contact with, for example, the first plate-like portion Pl1, and is locked by the second plate-like portion Pl2 in the first direction (−Z direction). It may be located in a state. For example, the first terminal portion Tm1C and the second terminal portion Tm2C are positioned in a state where the other second terminal portion Tm2C is locked by the first terminal portion Tm1C in a bent state. With such a structure, the main body 32C can be firmly fixed to the base 31C.

Further, in the examples of FIGS. 9B, 10B, 11A, and 11B, the second terminal portion Tm2C is connected to the fixed portion Fx1C and the fifth plate-like portion Pl5. Part Cl1. The fixed portion Fx1C is a portion located in a state where it is fixed to the bottom portion Bt2 of the third portion P3. The fifth plate-like portion Pl5 is a portion located in a state of extending from the fixed portion Fx1C. The fifth plate-like portion Pl5 has a hole Th3 for fastening to the bottom Bt2 of the third portion P3. The connection portion Cl1 is a plate-like portion that is bent in a U shape in plan view in the first direction (−Z direction). The connection portion Cl1 is located in a state where the gap portion GP2 is formed. Here, if the fourth portion P4 is rotated about the virtual axis Ax2 with respect to the second portion P2, the first plate-like portion Pl1 of the first terminal portion Tm1C is inserted into the gap portion GP2. The first plate portion Pl1 is fitted to the connection portion Cl1. At this time, the connection portion Cl1 is the locked terminal portion Fk1 that is locked by the second plate-shaped portion Pl2 in the first direction (−Z direction). Moreover, in the example of FIG.9 (b), FIG.11 (a), and FIG.11 (b), the cyclic | annular holding | maintenance part Hp1C is in the state which is holding the packing member Pk1 on the basis of the said cyclic | annular holding | maintenance part Hp1. The annular recess Cg1 is changed to a step along the inner peripheral part of the cylindrical side part Sp1.

Here, for example, the configuration of the first terminal portion Tm1C and the configuration of the second terminal portion Tm2C may be interchanged. That is, the second terminal portion Tm2C may include a bent terminal portion, and the first terminal portion Tm1C may include a locked terminal portion Fk1. At this time, for example, the locked terminal portion Fk1 is in contact with the first plate-shaped portion Pl1, and is in the second direction (+ Z direction) opposite to the first direction (−Z direction). You may be located in the state latched by 2 plate-shaped part Pl2.

<2-4. Fifth Embodiment>
In each of the above embodiments, for example, the cable C1 (C1a, C1d) shown in FIG. 12, which is located in a state of being electrically connected to the conductors W1a, W1f, with the terminal box 3 as a basic configuration, is provided. It may be changed to the terminal box 3D provided with the base portion 31D. If such a configuration is adopted, for example, even if the terminal box 3D includes the cable C1 and the diode Bd1, the cable C1 is continuously used, and the terminal-containing portion such as the diode Bd1 is replaced. When doing so, the number of parts to be exchanged may be small. As a result, for example, the terminal box 3 can be easily repaired for long-term use.

In the example of FIG. 12, two main body portions 32bD and 32cD are positioned in a state where one base portion 31D is engaged. Here, one base portion 31D is engaged portion En1 located in a state where the first portion P1D to be fixed to the solar cell panel 2 and the two main body portions 32bD and 32cD are engaged. And two second portions P2 each including. In addition, here, the main body portion 32bD includes a fourth portion P4 including an engagement portion En2 that is positioned so as to be rotatable about a virtual axis Ax2b extending along the first direction (−Z direction). ,have. In addition, here, the main body portion 32cD includes a fourth portion P4 including the engaging portion En2 that is positioned so as to be rotatable about a virtual axis Ax2c extending along the first direction (−Z direction). ,have.

<2-5. Sixth Embodiment>
In the first to fourth embodiments, the terminal boxes 3b, 3bA, 3bB, and 3bC are used as a basic configuration, for example, as shown in FIG. The terminal box 3E having the main body portion 32E may be changed. In this case, the second terminal portions Tm2 and Tm2C may be located in a state of being electrically connected to the cable C1. At this time, the terminal-containing portion is a portion including second terminal portions Tm2 and Tm2C that are located in a state of being electrically connected to the cable C1. In the example of FIG. 13, the terminal box 3E includes a base portion 31E and a main body portion 32E. The base portion 31E is obtained by increasing the number of first terminal portions Tm1C from two to four based on the base portion 31C. The main body 32E has the main body 32C as a basic configuration, a connecting portion At2a in which the terminal At1a of the cable C1a is detachable, a connecting portion At2d in which the terminal At1d of the cable C1d is detachable, Is added.

As described above, since the cable C1 can be attached to and detached from the main body 32E, for example, when only the cable C1 needs to be replaced, only the cable C1 can be replaced and other parts can be used continuously. . Thereby, long-term use of the main-body part 32E and the solar cell module 1 can be aimed at more easily.

<2-6. Seventh Embodiment>
In each of the embodiments described above, for example, as shown in FIGS. 14, 15A, and 15B, the engaged portion En1 and the engaging portion En2 are engaged in other forms. It may be changed to one having In other words, the engaged portion En1 and the engaging portion En2 are not limited to a form of engagement by rotation of a male screw and a female screw, and may have a form for realizing other engagement. Specifically, for example, the engaged portion En1 and the engaging portion En2 are rotated by a predetermined angle of less than 360 degrees while being pushed in the + Z-axis direction in a state where the main body portion 32F is placed on the base portion 31F. An engaging form may be adopted. In the example of FIG. 14, FIG. 15A and FIG. 15B, based on the terminal boxes 3b and 3bA, the base portion 31 is changed to the base portion 31F, and the main body portion 32 is changed to the main body portion 32F. In addition, a terminal box 3bF is employed. In the base portion 31F, the engaged portion En1 is located along a part of the outer peripheral portion of the second portion P2. In the main body portion 32F, the engaging portion En2 is located along a part of the inner peripheral portion of the fourth portion P4.

By using such a structure, the number of convex portions required for engagement in the Z direction can be reduced to one in both the engaged portion En1 and the engaging portion En2. Thereby, the width in the Z direction in both the engaged portion En1 and the engaging portion En2 can be made smaller than in the case of engagement by rotation of the male screw and the female screw, and the main body 32F can be downsized. It can be made easy to understand. Furthermore, since the management of the tightening torque required in the case of the engagement by the rotation of the male screw and the female screw can be made unnecessary, the workability related to the attachment of the main body portion 32F to the base portion 31F can be improved.

<2-7. Eighth Embodiment>
In the first to fourth embodiments and the sixth embodiment, the

body portions

32, 32B, 32C, and 32F include a diode Bd1 as a terminal-containing portion as shown in FIG. 16, for example. The terminal box 3bG that has been changed to the main body portion 32G that is in a state of being used may be employed. In the example of FIG. 16, the main body portion 32G is configured such that the diode Bd1 as the terminal-containing portion is built in the third portion P3. At this time, the diode Bd1 as the terminal-containing portion and the third portion P3 are integrally configured. Thereby, for example, when the main body portion 32G is mounted on the base body portion 31, the second terminal portion Tm2 can be pressed against the first terminal portion Tm1 by pressing the main body portion 32G against the base body portion 31. Further, the first terminal portion Tm1 and the second terminal portion Tm2 may have an arc shape along the rotation direction of the main body portion 32G when viewed in the first direction (here, the −Z direction). . Further, when the main body portion 32G is rotated with respect to the base portion 31, the first terminal portion Tm1 and the second terminal portion Tm2 may have a shape that can slide with each other. Further, there may be a pair of the first terminal portion Tm1 and the second terminal portion Tm2, and they may have the roles of a predetermined positive electrode and negative electrode. In this case, when the rotation of the main body 32G is finished, the first terminal portion Tm1 and the second terminal portion Tm2 are engaged with the engaged portion En1 so that predetermined positive electrodes and negative electrodes are combined. The portion En2 may be located. As a result, for example, the electrical connection between the first terminal portion Tm1 and the second terminal portion Tm2 can be easily and accurately realized without using a special jig or the like.

<2-8. Ninth Embodiment>
In each of the above embodiments, for example, as shown in FIG. 17, the engaged portion En1 is located along the inner periphery of the first annular region S11, and the engagement portion En2 is the outer periphery of the second annular region S12. The terminal box 3bH located along the line may be employed. The example of FIG. 17 is obtained by changing the terminal box 3b as a basic configuration to a terminal box 3bH having a base portion 31H and a main body portion 32H. The base portion 31H is modified with the base portion 31 as a basic configuration so that the engaged portion En1 is positioned along the inner circumference of the first annular region S11. Specifically, the engaged portion En1 is located on the inner peripheral surface of the annular groove Cg2. The main body portion 32H is modified so that the engaging portion En2 is positioned along the outer periphery of the second annular region Sl2 with the main body portion 32 as a basic configuration.

Even when such a structure is used, the main body 32H can be easily replaced in the terminal box 3bH, and the long-term use of the solar cell module 1 can be facilitated.

<2-9. 10th Embodiment>
In each of the above embodiments, the

main body portions

32, 32B, 32C, 32bD, 32cD, 32E, 32F, 32G, and 32H have a basic configuration, and the third portion P3 and the fourth portion P4 are, for example, illustrated in FIG. As shown in FIG. 18 and FIG. 19, a main body portion 32I that is changed into a separate third portion P3I and fourth portion P4I may be employed. If such a configuration is employed, for example, when the body portion 32I is engaged with the base portion 31 regardless of the structure of the first terminal portions Tm1, Tm1C and the second terminal portions Tm2, Tm2C, The number of rotations of the main body portion 32I relative to the portion 31 can be increased. Thereby, for example, the main body 32I can be firmly fixed to the base body 31.

Here, as shown in FIGS. 18 and 19, the third portion P3I includes, for example, a first annular portion Ld1, a second annular portion Sd1, and a stepped portion St1. The first annular portion Ld1 has an annular outer edge with a first diameter located closer to the front surface (here, the back surface Sf2) of the solar cell panel 2 than the second annular portion Sd1. In the example of FIGS. 18 and 19, the first annular portion Ld1 is a cylindrical portion (also referred to as a first cylindrical portion) centered on a virtual axis Ax2 extending along the first direction (−Z direction). It is. The second annular portion Sd1 is located on the first direction (−Z direction) side of the first annular portion Ld1, and has a second diameter smaller than the first diameter. In the example of FIGS. 18 and 19, the second annular portion Sd1 is a cylindrical portion (also referred to as a second cylindrical portion) centered on a virtual axis Ax2. The stepped portion St1 is located in a state where the first annular portion Ld1 and the second annular portion Sd1 are connected. In the example of FIGS. 18 and 19, the stepped portion St 1 has a shape like a ring-shaped disk located along a virtual plane orthogonal to the virtual axis Ax 2.

Further, the fourth portion P4I includes a hole portion Th4, a pressing portion Fl1, and a cylindrical portion Sl3I. In the example of FIGS. 18 and 19, the cylindrical portion S13I is a cylindrical portion centered on the virtual axis Ax2. If there is an unevenness formed on the outer peripheral surface of the cylindrical portion Sl3I, the user can easily turn the cylindrical portion Sl3I by hand. The hole Th4 is located in a state where the second annular portion Sd1 is inserted. The pressing portion Fl1 is positioned around the hole Th4 in a state where the stepped portion St1 is pressed in a second direction (+ Z direction) opposite to the first direction (−Z direction). The cylindrical portion S13I is located in a state extending in the second direction (+ Z direction) along the outer peripheral portion Op1I of the first annular portion Ld1 from the pressing portion Fl1. Further, the cylindrical portion S13I has an engaging portion En2. In the example of FIGS. 18 and 19, the engaging portion En2 is located along the inner periphery of the cylindrical portion Sl3I.

<3. Other>
In each of the above embodiments, for example, the diode Bd1 as the terminal-containing portion may be located in a state of being separated from the third portion P3 in the first direction (−Z direction).

In each of the above embodiments, for example, the surface protection member 21 has a portion (also referred to as an extension portion) located in a state of extending from the back surface protection member 25 in the direction along the XY plane. If so, the terminal box 3 may be positioned on the extended portion.

In each of the above embodiments, for example, the engaged portion En1 and the engaging portion En2 may have a form in which the convex portion and the concave portion are engaged, or the convex portion and the convex portion are engaged. You may have a form.

In the first embodiment and the third to tenth embodiments, for example, the back surface protection member 25 may be a sheet-like member having flexibility instead of a plate-like member.

In the sixth embodiment, the terminal-containing member includes, for example, the diode Bd1 including the second terminal portions Tm2 and Tm2C and the portion including the second terminal portions Tm2 and Tm2C in a state of being connected to the cable C1. One part may be included, and both parts may be included.

In the tenth embodiment, for example, the cylindrical portion S13I has a slit or the like positioned in a state extending along the first direction (−Z direction) so that a part in the circumferential direction is missing. You may do it.

It goes without saying that all or a part of each of the above embodiments and various modifications can be appropriately combined within a consistent range.

DESCRIPTION OF SYMBOLS 1 Solar cell module 2

Solar cell panel

3, 3a, 3b, 3bA, 3bB, 3bC, 3bF, 3bG, 3bH, 3c, 3d, 3D, 3E Terminal box 23 Photoelectric conversion part 25 Back

surface protection member

31, 31A, 31B, 31C , 31D, 31E, 31F,

31H Base part

32, 32B, 32C, 32E, 32F, 32G, 32H, 32I, 32bD, 32cD Main body part Ax2, Ax2b, Ax2c axis Bd1 diode (terminal-containing part)
C1, C1a, C1d Cable CE2 Solar cell Cg1 Annular recess Cg2 Groove En1 Engaged part En2 Engaged part Fk1 Engaged terminal part Fl1 Holding part Hp1, Hp1C Annular holding part Ld1 First annular part Op1I Outer peripheral part P1, P1D First part P2 Second part P3, P3I Third part P4, P4I Fourth part Pk1 Packing member Pl1 First plate-like part Pl2 Second plate-like part Pr1 Convex part Pr2 Annular projecting part Sc1 Sealed space Sd1 Second annular part Sf2 Back surface Sl1 First annular region Sl2 Second annular region Sl3I Cylindrical portion Sp1 Side portion St1 Stepped portion Th1, Th2, Th3, Th4 Hole portion Tm1, Tm1C First terminal portion Tm2, Tm2C Second terminal portion Vc1 Virtual line W1a , W1b, W1c, W1d, W1e, W1f

Claims

A solar panel including solar cells;
A terminal box located on the surface of the solar panel,
The terminal box is
A base portion located on the surface;
A body portion positioned on the base portion in a state of being engaged with the base portion,
The base portion is
A first portion located on the surface;
A second portion including an engaged portion located in a state protruding from the first portion along a first direction away from the surface and located along an annular region;
The 1st terminal part which is located in the state electrically connected to the area | region on the said surface from the said solar cell panel in the state electrically connected to the said photovoltaic cell is electrically connected And having
The main body is
A sealed space in a state in which a terminal-containing portion including a second terminal portion and a portion of the first terminal portion located in contact with the second terminal portion are accommodated in the base portion. A third part located in a forming state;
And a fourth portion including an engaging portion positioned along an annular region in a state of being engaged with the engaged portion in a rotatable and detachable manner. .
The solar cell module according to claim 1,
The terminal-containing portion is a solar cell module that is configured integrally with the third portion or is positioned in contact with the third portion in the first direction.
The solar cell module according to claim 1 or 2, wherein
The solar cell panel includes a plate-like member having a hole located in a state of penetrating in a second direction opposite to the first direction,
The said base | substrate part is a solar cell module which has a convex part located in the state fitted to the said hole.
The solar cell module according to any one of claims 1 to 3, wherein
The solar cell module further provided with the packing member located in the state which has block | closed the gap | interval of the said base | substrate part and the said main-body part.
The solar cell module according to claim 4,
The base portion has an annular protruding portion positioned in a state protruding toward the main body portion,
The main body has an annular holding portion located in a state of holding the packing member,
The said packing member is a solar cell module located in the state which contact | connected the said cyclic | annular protrusion part.
The solar cell module according to claim 5, wherein
The annular holding portion includes an annular recess located in a recessed state in the first direction;
The packing member is located in the annular recess;
The solar cell module, wherein the annular projecting portion is positioned in contact with the packing member in the annular recess.
The solar cell module according to any one of claims 1 to 6, wherein
The third part, the terminal-containing part and the fourth part are located in a state of being integrally formed,
When the base portion is seen through in plane in the second direction, the first terminal portion is located along a circular imaginary line with a virtual axis as the center, and the first direction is in the first direction. When the main body is seen through the plane, the second terminal portion is located along the virtual line,
The solar cell module, wherein the fourth portion is positioned so as to be rotatable about the axis with respect to the second portion.
The solar cell module according to claim 7, wherein
One terminal portion of the first terminal portion and the second terminal portion includes a first plate-like portion located in a state extending along the first direction, and the first plate-like portion. A bent terminal portion having a second plate-like portion positioned in a state of extending so as to be bent,
The other terminal portion different from the bent terminal portion of the first terminal portion and the second terminal portion is in contact with the first plate-shaped portion, and is in the first direction or A solar cell module including a locked terminal portion positioned in a state of being locked by the second plate-shaped portion in the second direction.
The solar cell module according to any one of claims 1 to 6, wherein
The third part is
A first annular portion having an annular outer edge of a first diameter located on the surface side;
A second annular part having a second diameter smaller than the first diameter located on the first direction side of the first annular part;
A step portion positioned in a state of connecting the first annular portion and the second annular portion,
The fourth part is
A hole located in a state where the second annular portion is inserted; and
A pressing portion positioned in a state of pressing the step portion in the second direction around the hole portion;
And a cylindrical portion that is positioned in a state extending in the second direction along the outer peripheral portion of the first annular portion from the pressing portion and has the engaging portion.
The solar cell module according to any one of claims 1 to 9, wherein
The terminal-containing part is a solar cell module including a diode.
The solar cell module according to any one of claims 1 to 10, wherein
The said base | substrate part is a solar cell module which has the cable for an output located in the state electrically connected with the said conducting wire.
A base part, and a main body part detachable from the base part,
The base portion is
A first portion including a bottom surface for positioning on a surface of a solar cell panel including solar cells;
A second portion that includes an engaged portion that is located along a toric region, located in a state protruding from the first portion along a first direction opposite to the bottom surface;
A first terminal portion to be electrically connected to a conductor wire located in the solar cell panel to the region on the surface in a state of being electrically connected to the solar battery cell. ,
The main body is
When the main body is attached to the base body, the terminal-containing portion including the second terminal portion and the second terminal portion of the first terminal portion are in contact with each other. A third portion capable of forming a sealed space in a state of accommodating the portion with the base portion;
And a fourth portion including an engagement portion positioned along an annular region for rotatably and detachably engaging with the engaged portion. A terminal box for a solar cell module .