CN217400145U - Photovoltaic unit, photovoltaic curtain wall and photovoltaic roof - Google Patents

Abstract

The utility model discloses a photovoltaic unit, photovoltaic curtain and photovoltaic roof relates to photovoltaic integration technical field. For improving the convenience of the connector lead-out. The photovoltaic unit comprises a photovoltaic assembly, a wire connector and a secondary frame. The wire connector is electrically connected with a junction box included in the photovoltaic module. The auxiliary frame is connected to the backlight surface of the photovoltaic module, a through hole is formed through the auxiliary frame, and the through hole is used for leading out a wire connector. The photovoltaic unit is applied to photovoltaic curtain walls and photovoltaic roofs.

Description

Photovoltaic unit, photovoltaic curtain wall and photovoltaic roof

Technical Field

The utility model relates to a photovoltaic integration technical field especially relates to a photovoltaic unit, photovoltaic curtain and photovoltaic roof.

Background

In recent years, in order to actively respond to the development requirements of national green buildings, the building and photovoltaic industries are continuously exploring and practicing the photovoltaic building integration technology. That is, there is a good trend to integrate photovoltaic modules into buildings, such as photovoltaic curtain walls, photovoltaic roofs, and the like.

The existing photovoltaic module is integrated on a building, and the problem that a wire connector is inconvenient to lead out is solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a photovoltaic unit, photovoltaic curtain and photovoltaic roof for improve the convenience that the connector was drawn forth.

In a first aspect, the present invention provides a photovoltaic unit, including: photovoltaic module, connector and vice frame. The wire connector is electrically connected with a junction box included in the photovoltaic module. The auxiliary frame is connected to the backlight surface of the photovoltaic module, a through hole is formed through the auxiliary frame, and the through hole is used for leading out a wire connector.

In practical applications, it is generally necessary to electrically connect a plurality of photovoltaic units together, and then connect the electrical energy generated by the plurality of photovoltaic units with, for example, an inverter or a storage battery by using connectors configured on the edge of the photovoltaic units, so as to output the electrical energy generated by the plurality of photovoltaic units. And the electrical connection among a plurality of photovoltaic units can also be realized through the wire connectors configured on the photovoltaic units.

Under the condition of adopting above-mentioned technical scheme, the back is connected at photovoltaic module's shady plain noodles and the terminal box electricity that connector and photovoltaic module included to vice frame, and the connector can be drawn forth through the through-hole of seting up on vice frame to the electricity between two adjacent photovoltaic units of convenience (usually, all dispose the connector on each photovoltaic unit, the electric connection that photovoltaic unit can be realized to the connector butt joint that two adjacent photovoltaic units have), perhaps, the convenient connector that the photovoltaic unit that lies in the edge includes draws forth back and dc-to-ac converter or battery electricity and is connected.

In one implementation, the outer edge of the secondary frame has a first receiving space for receiving a wire connector.

So set up, first accommodation space not only can standardize placing of connector for placing of connector provides the space, moreover, can also effectually avoid the connector to expose. Based on this, will the utility model provides a when photovoltaic unit is applied to like photovoltaic curtain or photovoltaic roof, when improving the aesthetic property on photovoltaic curtain or photovoltaic roof on the whole, can also play the guard action to the connector to the life of extension connector.

In one implementation mode, the secondary frame comprises a long frame and a short frame, and the long frame and the short frame are connected end to enclose the secondary frame. The long frame and the short frame respectively comprise a bearing part, a first connecting part and a second connecting part, and the bearing part is provided with a first side and a second side which are opposite in the direction perpendicular to the photovoltaic assembly. First connecting portion extend from the first side direction of keeping away from photovoltaic module's direction, and first connecting portion are used for being connected with the building face. The second connecting portion extend from the second side direction to the direction far away from the photovoltaic module, and the second connecting portion is used for being connected with the photovoltaic module. A space formed by enclosing the bearing part, the first connecting part and the second connecting part is a first accommodating space; the through hole is formed through the bearing part of the long frame and/or the short frame.

Under the condition of adopting above-mentioned technical scheme, by the vice frame that long frame and short frame end to end connection enclose to close and form, be applicable to the photovoltaic module of current general specification, have the universality. Furthermore, the long frame and the short frame formed by the combination of the bearing part, the first connecting part and the second connecting part have the characteristic of simple structure. Moreover, will the utility model provides a when photovoltaic unit is applied to like photovoltaic curtain or photovoltaic roof, the photovoltaic module that photovoltaic unit includes can be through the long frame and the short frame that vice frame included and building face (the building face here includes building facade or roof) fastening connection, and at this moment, long frame and short frame can play the effect of consolidating photovoltaic module. Furthermore, the secondary frame formed by enclosing the long frame and the short frame is generally positioned between the building surface and the photovoltaic module. That is to say, the photovoltaic module can hide the secondary frame in the space between the photovoltaic module and the building surface, and the secondary frame is equivalent to a hidden frame when viewed from the outside of the photovoltaic curtain wall or the photovoltaic roof. Based on this, can improve the aesthetic measure of photovoltaic curtain wall or photovoltaic roof. In addition, under the condition that the photovoltaic module is connected with the building surface through the long frame and the short frame of the sub-frame, compared with the condition that the photovoltaic module is connected with the building surface through the long frame and the short frame of the photovoltaic module, the installation stress of the photovoltaic module is concentrated on the sub-frame, but not on the photovoltaic module. Therefore, the problems of short service life and the like of the photovoltaic module caused by failure of the installation position can be reduced. That is to say, under the condition that the service life of photovoltaic module is greater than the service life of vice frame, change vice frame after, photovoltaic module still can continue to use. Based on this, the replacement or maintenance cost of the photovoltaic unit can be reduced.

In practical applications, the opening positions of the through holes can be determined according to the distribution mode of the junction boxes (the junction boxes are distributed along the long frame direction of the photovoltaic module, and/or the junction boxes are distributed along the short frame direction of the photovoltaic module). That is, the through-holes may be opened on the long rim and/or the short rim. Based on this, different application scenarios can be adapted.

In one implementation, the long bezel and the short bezel further include: the limiting bulge extends from the second side to the direction perpendicular to the photovoltaic module and is close to the photovoltaic module to form the limiting bulge; the second connecting portion is connected with the photovoltaic assembly through the composite rubber strip, and the limiting protrusions are used for limiting the position of the composite rubber strip.

Under the condition of adopting above-mentioned technical scheme, the extreme position of compound adhesive tape in being close to photovoltaic module one side can be injectd in the setting of spacing arch on the one hand to effectual compound adhesive tape of avoiding is excessive to the central direction that is close to photovoltaic module on photovoltaic module, thereby reduces the photovoltaic module's that compound adhesive tape covered area. Based on this, when photovoltaic module is dual-glass photovoltaic module, can effectual reduction compound adhesive tape to dual-glass photovoltaic module's sheltering from to improve photovoltaic module's generated power. In addition, the auxiliary operation time for cleaning the overflowing composite adhesive tape due to overflowing of the composite adhesive tape can be effectively shortened, so that the assembly or assembly efficiency of the photovoltaic unit is improved.

Moreover, the arrangement of the limiting bulges enables the composite adhesive tape to be provided with at least three adhesive surfaces (a first adhesive surface adhered to the second connecting part, a second adhesive surface adhered to the photovoltaic module and a third adhesive surface adhered to the limiting bulges), and under the condition that the area of the adhesive surface of the composite adhesive tape is increased, the connection strength of the photovoltaic module and the sub-frame can be improved, so that the stability of the photovoltaic unit is integrally improved.

In addition, the arrangement of the limiting bulge can provide a fulcrum for the arrangement of the composite rubber strip. That is to say, when the compound adhesive tape is arranged on the opposite side of the second connecting part and the photovoltaic module, the limiting protrusion can be used as a fulcrum to extend in the direction away from the photovoltaic module. Based on this, the convenience of arranging the composite rubber strip can be improved.

In one implementation mode, one side of the first connecting part, which is opposite to the building surface, is provided with a first mounting groove; the first mounting groove is used for clamping a first adhesive tape adhered to the building surface.

In one implementation mode, the photovoltaic unit further comprises a reinforcing part, the reinforcing part is connected to the photovoltaic assembly and provided with a second accommodating space, the junction box is accommodated in the second accommodating space, the end part of the reinforcing part is connected with the auxiliary frame, and the through hole is formed in the area where the auxiliary frame is connected with the reinforcing part.

So set up, the intensity that vice frame bears photovoltaic module can be increased to the reinforcement on the one hand to improve photovoltaic unit's stability. On the other hand, the terminal box is accommodated in the second accommodating space of the reinforcement, and the terminal box can be shielded by the reinforcement so as to be hidden in the second accommodating space. At the moment, under the condition of effectively avoiding the leakage of the junction box, the service life of the junction box can be prolonged, and the attractiveness of the photovoltaic unit is improved. In a third aspect, the second accommodating space can also standardize the wiring of the junction box, so as to further improve the aesthetic degree of the photovoltaic unit.

In one implementation, the stiffener includes a first stiffener having opposing first and second sides in a direction parallel to the photovoltaic assembly, a second stiffener, and a third stiffener. The second stiffener extends from the first side in a direction toward the photovoltaic module. The third stiffener extends from the second side in a direction adjacent to the photovoltaic module. The space that first reinforcing plate, second reinforcing plate and third reinforcing plate enclose to close and form is second accommodation space. The second reinforcing plate and the third reinforcing plate are provided with extension ends connected to the photovoltaic module; the second reinforcing plate and the third reinforcing plate have end portions connected to the sub-frame.

So set up, the reinforcement that constitutes by first reinforcing plate, second reinforcing plate and third reinforcing plate not only has simple structure's characteristics, still has characteristics such as convenient processing, equipment.

In an implementation mode, the extending ends of the second reinforcing plate and the third reinforcing plate are provided with second mounting grooves, and the second mounting grooves are used for clamping a second adhesive tape adhered to the photovoltaic module. So set up, can improve the joint strength of second adhesive tape and second reinforcing plate and third reinforcing plate.

In one implementation mode, a first nail line slot is formed in one face, opposite to the third reinforcing plate, of the second reinforcing plate; the third reinforcing plate is provided with a second nail wire slot on the side opposite to the second reinforcing plate. With the arrangement, the first nail line groove and the second nail line groove can improve the convenience of connecting the reinforcing piece with other components.

In a second aspect, the present invention further provides a photovoltaic curtain wall, which includes a keel and a plurality of photovoltaic units electrically connected together, wherein the photovoltaic units are the first aspect and/or any one of the first aspect. A plurality of photovoltaic units are connected with the keel in a fastening mode. And a cavity is formed between the secondary frames of two adjacent photovoltaic units. Gaps are formed between the photovoltaic modules included in the two adjacent photovoltaic units. The connector enters/exits the cavity through the slot.

Compared with the prior art, the utility model provides a photovoltaic curtain wall's beneficial effect does not do with the part that the beneficial effect of the photovoltaic unit that the first aspect provided is the same and gives unnecessary details. In addition, a gap is formed between the photovoltaic modules of the two adjacent photovoltaic units, the wire connectors which are accommodated in the cavity and inconvenient to plug can be pulled out of the gap to the outside, and the wire connectors are plugged back into the cavity through the gap after the plugging is finished outdoors. According to above application process, the utility model provides a photovoltaic curtain wall has connector simple to operate's characteristics.

In one implementation, in the case of the photovoltaic unit provided in the first aspect with a stiffener, the gap is filled with a seal in the assembled state. At this time, the second accommodating space of the reinforcing member and the cavity form an equal-pressure cavity through the through hole. So set up, the isobaric chamber can effectually prevent rainwater or dust entering.

A third aspect, the utility model also provides a photovoltaic roof, photovoltaic roof includes: the roof board, fossil fragments and roof board fastening connection. A plurality of photovoltaic units electrically connected together, a photovoltaic unit being a photovoltaic unit according to the first aspect and/or any implementation manner of the first aspect. A plurality of photovoltaic units are connected with the keel in a fastening mode. And a cavity is formed between the secondary frames of two adjacent photovoltaic units. A gap is formed between the photovoltaic modules included in the two adjacent photovoltaic units. The connector enters/exits the cavity through the slot.

Compared with the prior art, the utility model provides a photovoltaic roof's beneficial effect is the same with the beneficial effect of the photovoltaic curtain that the second aspect provided, and the no longer elaboration is done here.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic structural diagram of a photovoltaic unit provided in an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is an enlarged view taken at I in FIG. 2;

FIG. 5 is an enlarged view taken at II in FIG. 2;

FIG. 6 is an enlarged view taken at III in FIG. 3;

FIG. 7 is a schematic structural view of a photovoltaic curtain wall (at a transverse section of the photovoltaic curtain wall);

fig. 8 is a schematic structural view of a photovoltaic roof (at a longitudinal section of the photovoltaic roof).

Reference numerals are as follows:

10-photovoltaic module, 20-wire connector, 30-sub frame,

100-junction box, 300-first receiving space, 301-long rim,

302-short border, a-carrying part, b-first connecting part,

c-a second connection portion, b 0-a first mounting groove, 303-a first glue strip,

d-through hole, e-limit bump, 304-compound adhesive tape,

40-reinforcement, 400-second accommodation space, 401-first reinforcement plate,

402-second reinforcing plate, 403-third reinforcing plate, f-second mounting groove,

404-a second adhesive tape, 405-a first nail line groove, 406-a second nail line groove;

50 a-keel, 60 a-cavity, 70 a-gap,

71 a-sealing element, 80 a-T-shaped pressing block, 90 a-self-tapping screw;

50 b-keel, 51 b-roof panel, 60 b-cavity,

70 b-gap, 52 b-aluminum alloy high-strength support and 53 b-aluminum alloy connecting code.

Detailed Description

In order to make the technical problem, technical solution and beneficial effects to be solved by the present invention more clearly understood, the following description is made in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

To the technical problem that prior art exists, the first aspect, the embodiment of the utility model provides a photovoltaic unit. Referring to fig. 1 to 3 and 5, the photovoltaic unit includes a photovoltaic module 10, a wire connector 20, and a sub-frame 30. The connector 20 is electrically connected to a junction box 100 included in the photovoltaic module 10. The secondary frame 30, the secondary frame 30 is connected to the backlight surface of the photovoltaic module 10; a through hole d is formed through the sub-frame 30 and used for leading out the wire connector 20.

Referring to fig. 1 to 3 and 5, the photovoltaic module 10 may be a conventional photovoltaic module 10 related to the prior art, and may be a single-glass photovoltaic module or a dual-glass photovoltaic module. It may generally comprise a laminate, a bezel carrying the laminate, which may comprise a long bezel and a short bezel, i.e. the long and short bezels are joined end to form the bezel and are snapped around the laminate. The photovoltaic module 10 further includes a three-part junction box 100 disposed on a backlight surface of the laminate and extending along the short frame or the long frame. The junction box 100 is electrically connected to a lead-out wire (generally, a bus bar) provided to the laminate to lead out electric power generated from the laminate.

Referring to fig. 1 to 3, the above-mentioned connectors 20 may be the connectors 20 related to the prior art, and in practical applications, two connectors 20 are configured for each pv cell, one connector 20 is connected to the positive output terminal of the junction box 100, and the other connector 20 is connected to the negative output terminal. When it is desired to electrically connect a plurality of photovoltaic cells in series, the connector 20 of one photovoltaic cell configuration electrically connected to the positive output terminal may be plugged together with the connector 20 of another photovoltaic cell configuration electrically connected to the negative output terminal.

Referring to fig. 1-3, the sub-frame 30 may be bonded or otherwise attached to the back side of the photovoltaic module 10, for example, the sub-frame 30 may be attached to a frame included in the photovoltaic module 10. For another example, the sub-frame 30 may be attached to a laminate included in the photovoltaic module 10.

Referring to fig. 1 to 3 and 5, the specific position of the through hole d formed through the sub-frame 30 may be determined according to the actual application requirement. For example, a through hole d may be opened at a position of the sub-bezel 30 near the terminal block 100 to facilitate the wire connector 20 electrically connected to the terminal block 100 to be led out through the through hole d. The number of through holes d may be not limited, and for example, at least one through hole d may be formed for one connector 20. The size of the through hole d may not be particularly limited as long as the wire connector 20 can be led out.

Referring to fig. 1 to 3, in practical applications, after a plurality of photovoltaic units are electrically connected together, the electrical energy generated by the photovoltaic units is connected to an inverter or a storage battery, for example, by using the connector 20 of the photovoltaic unit on the edge, so as to output the electrical energy generated by the photovoltaic units. While the electrical connection between a plurality of photovoltaic cells can also be realized by means of a photovoltaic cell-equipped connector 20.

With reference to fig. 1 to fig. 3 and fig. 5, in the case of adopting the above technical solution, after the sub-frame 30 is connected to the backlight surface of the photovoltaic module 10 and the wire connector 20 is electrically connected to the junction box 100 included in the photovoltaic module 10, the wire connector 20 can be led out through the through hole d formed in the sub-frame 30, so as to facilitate the electrical connection between two adjacent photovoltaic units (generally, the wire connector 20 is configured on each photovoltaic unit, and the electrical connection of the photovoltaic units can be realized by butting the wire connectors 20 of two adjacent photovoltaic units), or, the wire connector 20 included in the photovoltaic unit located at the edge is led out and then electrically connected to an inverter or a storage battery.

Moreover, in practical application, the sub-frame 30, the wire connector 20 and the photovoltaic module 10 can be pre-assembled and then transported to a construction site, and based on the pre-assembled sub-frame, operations such as welding, bonding, leading and the like do not need to be carried out on the site, and at the moment, the installation efficiency of the photovoltaic unit and the building surface can be improved.

Moreover, when the photovoltaic module without the auxiliary frame is installed on a building surface, the space between the photovoltaic module and the building surface is narrow, so that the installation operation is inconvenient. And the embodiment of the utility model provides a photovoltaic unit has increased vice frame 30 on photovoltaic module 10, when photovoltaic unit and building surface installation, has the space between photovoltaic module 10 and the building surface, the connector 20's of being convenient for connection. In practical applications, a certain gap is generally formed between two adjacent photovoltaic units, and the connector 20 can be pulled out to the outside through the gap to complete installation and then be plugged back into the first accommodating space 300. That is to say, the utility model discloses photovoltaic unit that provides can improve the convenience of installing at the scene from a plurality of aspects.

Referring to fig. 4 and 6, as a possible implementation, the outer edge of the secondary frame 30 has a first receiving space 300, and the first receiving space 300 is used for receiving the wire connector 20. In practical applications, after one end of the connector 20 is electrically connected to the terminal box 100, the other end of the connector is led out of the first accommodating space 300 through the through hole d and then adhered to the inner wall of the first accommodating space 300. It should be understood that the first receiving space 300 can not only receive the wire connector 20, but also serve as a space for routing the photovoltaic cells. As such, the first receiving space 300 provides a placing space for the wire connector 20 and the cable, etc., which not only can standardize the placing positions of the wire connector 20 and the cable, but also can prevent the wire connector 20 and the cable from being exposed. It will the utility model provides a when the photovoltaic unit is applied to like photovoltaic curtain or photovoltaic roof, when improving the aesthetic property on photovoltaic curtain or photovoltaic roof on the whole, can also play the guard action to connector 20 to extension connector 20's life.

Referring to fig. 4 and 6, as an example, the sub-frame 30 may include a long frame 301 and a short frame 302, that is, the long frame 301 and the short frame 302 are connected end to form the sub-frame 30. The orthogonal projection of the sub-frame 30 on the photovoltaic module 10 is the same as the frame shape of the photovoltaic module 10. Each of the long and short frames 301 and 302 may include a bearing portion a, a first connecting portion b and a second connecting portion c, wherein the bearing portion a has a first side and a second side opposite to each other in a direction perpendicular to the photovoltaic module 10. The first connecting portion b extends from a first side away from the photovoltaic module 10, and is used for connecting with a building surface (not shown). The second connecting portion c extends from the second side in a direction away from the photovoltaic module 10, and the second connecting portion c is used for being connected with the photovoltaic module 10. The space enclosed by the bearing portion a, the first connecting portion b and the second connecting portion c is a first accommodating space 300.

Referring to fig. 4 and 6, the bearing portion a may be any one of a bearing column and a bearing frame. When the bearing part a is a bearing column (the bearing column is a solid cylinder, such as a rectangular solid column), the bearing part a can have a strong bearing capacity, so as to ensure the overall stability of the photovoltaic unit. When the support portion a is a support frame (the support frame has a hollow rectangular parallelepiped structure), the weight of the photovoltaic unit as a whole can be reduced when the weight of the sub-frame 30 is reduced.

Referring to fig. 4 and 6, the first connecting portion b and the second connecting portion c may be specifically connecting plates, and in this case, the first accommodating space 300 defined by the bearing frame/the bearing column and the connecting plates has three non-hollow walls, so that in practical applications, rainwater or dust can be effectively prevented from entering the first accommodating space 300, so as to provide a relatively clean environment for the wire connector 20 accommodated in the first accommodating space 300. It should be understood that the connecting plate may be a planar connecting plate, a curved connecting plate, a deformed planar connecting plate, or the like.

Referring to fig. 4 and 6, the long frame 301 and the short frame 302 may be integrally formed by the bearing portion a, the first connecting portion b, and the second connecting portion c, or the bearing portion a, the first connecting portion b, and the second connecting portion c may be assembled into the long frame 301 and the short frame 302 by welding, bonding, or other fastening methods.

Referring to fig. 4 and 6, the long frame 301 and the short frame 302 may be made of an aluminum alloy material, an aluminum magnesium alloy material, or the like, or may be made of a non-metal material with a certain bearing capacity, which is not limited herein.

Referring to fig. 4 and 6, the first connection portion b and the second connection portion may be perpendicular to the bearing portion a, or the extension ends of the first connection portion b and the second connection portion c may be close to each other, or the extension ends of the first connection portion b and the second connection portion c may be distant from each other. That is, the bearing portion a, the first connecting portion b and the second connecting portion C form a C-shaped long frame 301 or a C-shaped short frame 302, or a C-like long frame 301 or a C-like short frame 302. The secondary frame 30 with such a structure can be applied to the photovoltaic module 10 with the existing general specification, and has universality. Moreover, under the condition that the structure of the auxiliary frame 30 is simple, the auxiliary frame has the characteristics of easily available materials, easy processing, easy assembly and the like. When the photovoltaic unit provided by the embodiment of the present invention is applied to, for example, a photovoltaic curtain wall or a photovoltaic roof, the photovoltaic module 10 included in the photovoltaic unit can be tightly connected to a building surface (the building surface includes a building facade or a roof) through the long frame 301 and the short frame 302 included in the sub-frame 30, and at this time, the long frame 301 and the short frame 302 can play a role in reinforcing the photovoltaic module 10. Furthermore, the secondary frame 30 formed by the long frame 301 and the short frame 302 is generally located between the building surface and the photovoltaic module 10. That is, the photovoltaic module 10 can hide the sub-frame 30 in the space between the photovoltaic module 10 and the building surface, and the sub-frame 30 is equivalent to a hidden frame when viewed from the outside of the photovoltaic curtain wall or the photovoltaic roof. Based on this, can improve the aesthetic measure of photovoltaic curtain wall or photovoltaic roof. In addition, in the case where the photovoltaic module 10 is connected to the building surface via the long frame 301 and the short frame 302 of the sub-frame 30, the mounting stress is concentrated on the sub-frame 30, rather than the photovoltaic module 10 itself, as compared to the case where the photovoltaic module 10 is connected to the building surface via its own long frame and short frame. Therefore, the problems of the photovoltaic module 10 such as shortened service life caused by failure of the installation position can be reduced. That is, in the case that the service life of the photovoltaic module 10 is longer than that of the sub-frame 30, the photovoltaic module 10 can still be used after the sub-frame 30 is replaced. Based on this, the replacement or maintenance cost of the photovoltaic unit can be reduced.

Referring to fig. 4 and 6, as mentioned above, in practical applications, the first connection portion b is used for connecting with a building surface, and a specific connection manner may be that a first mounting groove b0 is provided on a surface of the first connection portion b opposite to the building surface, and the first connection portion b and the building surface are bonded together by using the first adhesive tape 303. Specifically, a part of the first adhesive tape 303 is embedded in the first mounting groove b0 to enhance the connection strength between the first adhesive tape 303 and the first connection portion b, and a part of the first adhesive tape 303 protruding out of the first mounting groove b0 may be flatly laid on a surface of the first connection portion b opposite to the building surface and then bonded on the building surface to realize the fastening connection between the first connection portion b and the building surface. The first adhesive tape 303 may be an epdm adhesive tape or other adhesive tape having the same function, and is not limited in particular.

Referring to fig. 5, a through hole d may be formed through the bearing portion a of the long bezel 301 and/or the short bezel 302. Whether the through hole d is formed in the bearing portion a of the long frame 301 or the bearing portion a of the short frame 302 is determined according to actual application requirements. For example, when the junction box 100 is a three-part junction box and is distributed along the short frame direction included in the photovoltaic module 10, the through hole d is opened on the bearing portion a of the long frame 301. For another example, when the junction box 100 is a three-part junction box and is distributed along the direction of the long frame included in the photovoltaic module 10, the through holes d are opened on the bearing portion a of the short frame 302. For another example, when the junction box 100 is a three-part junction box and is distributed along the short frame and the long frame included in the photovoltaic module 10, the through holes d are opened on the bearing portions a of the long frame 301 and the short frame 302. In practical applications, the opening positions of the through holes d may be determined according to the distribution manner of the junction boxes 100 (the junction boxes 100 are distributed along the long frame direction of the photovoltaic module 10, and/or the junction boxes 100 are distributed along the short frame direction of the photovoltaic module 10). That is, the through-hole d may be opened on the long rim and/or the short rim. Based on this, different application scenarios can be adapted.

Referring to fig. 4 and 6, the long frame 301 and the short frame 302 further include a limiting protrusion e, and the limiting protrusion e extends from the second side to a direction perpendicular to the photovoltaic module 10 and is formed by extending to be close to the photovoltaic module 10; the second connecting portion c is connected with the photovoltaic module 10 through the composite rubber strip 304, and the limiting protrusion e is used for limiting the position of the composite rubber strip 304. The limiting protrusion e may be integrally formed with the bearing part a, i.e., continuously extend in a direction in which the bearing part a approaches the photovoltaic module 10 to form the limiting protrusion e. When the second connecting portion c is connected to the photovoltaic module 10 through the composite adhesive tape 304, the limiting protrusion e is used for limiting the position of the composite adhesive tape 304. Here, the composite strip 304 may be a double-sided adhesive and a silicone construction adhesive. In practical application, the side surface of the double-sided adhesive tape may be abutted and buckled on the inner side surface of the limiting protrusion e by taking the limiting protrusion e as a "fulcrum", then the double-sided adhesive tape is extended from the limiting protrusion e to a preset position (the preset position is not limited, and may be close to the middle of the second connecting portion c) of the second connecting portion c in a direction parallel to the photovoltaic module 10 from the limiting protrusion e in a direction away from the photovoltaic module 10, and silicone structural adhesive is continuously injected from the preset position along the extending direction of the double-sided adhesive tape, so that the rest positions of the second connecting portion c are filled with the silicone structural adhesive. The second connecting part c and the photovoltaic module 10 are firmly connected together by double-faced adhesive and silicone structural adhesive.

With reference to fig. 4 and 6, in the case of adopting the above technical solution, on one hand, the limiting protrusion e can limit the limit position of the composite adhesive tape 304 at the side close to the photovoltaic module 10, so as to effectively prevent the composite adhesive tape 304 from overflowing on the photovoltaic module 10 toward the direction close to the center of the photovoltaic module 10, thereby reducing the area of the photovoltaic module 10 covered by the composite adhesive tape 304. Based on this, when photovoltaic module 10 was two glass photovoltaic module, can effectually reduce compound adhesive tape 304 and to two glass photovoltaic module's sheltering from to improve photovoltaic module 10's generated power. In addition, the auxiliary operation time for cleaning the overflowing composite adhesive tape 304 due to the overflowing composite adhesive tape 304 can be effectively shortened, so that the assembly or assembly efficiency of the photovoltaic unit is improved.

Referring to fig. 4 and 6, in addition to the above, the arrangement of the limiting protrusion e enables the composite adhesive tape 304 to have at least three adhesive surfaces (a first adhesive surface adhered to the second connecting portion c, a second adhesive surface adhered to the photovoltaic module 10, and a third adhesive surface adhered to the limiting protrusion e), and in the case of increasing the area of the adhesive surface of the composite adhesive tape 304, the connection strength between the photovoltaic module 10 and the secondary frame 30 can be improved, so as to improve the stability of the photovoltaic unit as a whole.

Referring to fig. 4 and 6, the arrangement of the limiting protrusion e can provide a "fulcrum" for the arrangement of the composite rubber strip 304. That is, when the composite adhesive tape 304 is required to be disposed on the surface of the second connecting portion c opposite to the photovoltaic module 10, the limiting protrusion e may be used as a "fulcrum" to extend in a direction parallel to the photovoltaic module 10 and away from the photovoltaic module 10. In this way, the convenience of disposing the composite rubber strip 304 can be improved.

Referring to fig. 5, as a possible implementation manner, the photovoltaic unit further includes a stiffener 40, the stiffener 40 is connected to the photovoltaic module 10, the stiffener 40 has a second accommodating space 400, the junction box 100 is accommodated in the second accommodating space 400, an end of the stiffener 40 is connected to the sub-frame 30, and the through hole d is opened in a region where the sub-frame 30 is connected to the stiffener 40.

Referring to fig. 5, in practical application, the photovoltaic module 10, the wire connector 20, the sub-frame 30 and the reinforcing member 40 may be pre-assembled. Specifically, after the connector 20 is plugged with the junction box 100 of the photovoltaic module 10, the junction box 100 is led out to the first accommodating space 300 through the through hole d. The stiffener 40 is then snapped onto the backlight side of the photovoltaic module 10 and covers the junction box 100 included in the photovoltaic module 10. Based on this, will the embodiment of the utility model provides a photovoltaic unit specifically uses when like photovoltaic curtain wall or photovoltaic roof, with photovoltaic unit with regular matrix or irregular matrix arrangement and accomplish with the fastening connection of building face can, moreover because connector 20 has been placed in advance in first accommodation space 300, after the fastening is accomplished to a plurality of photovoltaic units, directly peg graft the connector 20 of holding together in the adjacent first accommodation space 300 and can realize the electricity between a plurality of photovoltaic units. That is, the photovoltaic unit does not need to be subjected to any further work such as bonding, welding, and the like on site, and therefore, the efficiency of on-site installation of the photovoltaic unit can be improved.

Referring to fig. 5, as an example, the junction box 100 is distributed along a direction of a short frame included in the photovoltaic module 10, in this case, the stiffener 40 is disposed on a backlight surface of the photovoltaic module 10 along a direction parallel to the short frame included in the photovoltaic module 10 and perpendicular to a long frame included in the photovoltaic module 10. Specifically, the connection of the stiffener 40 to the photovoltaic module 10 may be by bonding or other means. The two ends of the reinforcing member 40 in the extending direction thereof are respectively abutted against and fastened to the long frames 301 included in the sub-frames 30. At this time, a through hole d may be formed in a region of the long frame corresponding to the sub-frame 30, so that the wire connector 20 plugged with the terminal box 100 is conveniently led out to the first receiving space 300 through the through hole d. Meanwhile, the reinforcing member 40 can be used to improve the connection strength and stability of the photovoltaic module 10 and the sub-frame 30. The terminal box 100 is accommodated in the second accommodation space 400 of the reinforcement 40, that is, the terminal box 100 is hidden in the second accommodation space 400. Based on this, the protection of the junction box 100 by the reinforcing member 40 can be realized, so that the corrosion of the junction box 100 caused by rain water or dust, etc. can be effectively avoided, thereby prolonging the service life of the junction box 100. Moreover, the stiffener 40 can also be used to normalize the routing of the junction box 100 to improve the aesthetics of the photovoltaic unit.

Referring to fig. 5, as an example, the stiffener 40 includes a first stiffener plate 401, a second stiffener plate 402, and a third stiffener plate 403, the first stiffener plate 401 having opposite first and second sides in a direction parallel to the photovoltaic module 10. A second stiffener plate 402, the second stiffener plate 402 extending from the first side in a direction closer to the photovoltaic module 10. A third stiffener plate 403, the third stiffener plate 403 extending from the second side in a direction closer to the photovoltaic module 10. The space enclosed by the first reinforcing plate 401, the second reinforcing plate 402, and the third reinforcing plate 403 is a second accommodating space 400. The second and third reinforcing plates 402 and 403 have extended ends connected to the photovoltaic module 10; the second reinforcing plate 402 and the third reinforcing plate 403 have end portions connected to the sub-frame 30.

Referring to fig. 5, after the first reinforcing plate 401, the second reinforcing plate 402, and the third reinforcing plate 403 are abutted against the long frame 301 included in the sub-frame 30, the first reinforcing plate 401, the second reinforcing plate 402, the third reinforcing plate 403, the photovoltaic module 10, and the long frame 301 included in the sub-frame 30 form a closed space. In this case, the through hole d may be opened at a position where the receiving portion a of the long frame 301 abuts against the first reinforcing plate 401, the second reinforcing plate 402, and the third reinforcing plate 403. The reinforcing member 40 formed by the first reinforcing plate 401, the second reinforcing plate 402, and the third reinforcing plate 403 has not only a simple structure but also convenient processing and assembly.

Referring to fig. 5, in an implementation manner, the extending ends of the second reinforcing plate 402 and the third reinforcing plate 403 are respectively provided with a second mounting groove f, and the second mounting groove f is used for clamping a second adhesive tape 404 adhered to the photovoltaic module 10. This arrangement can improve the strength of the connection between the second strip 404 and the second reinforcing plate 402 and the third reinforcing plate 403. The second adhesive strip 404 may be an epdm adhesive strip or other adhesive strip with the same function.

Referring to fig. 5, in one implementation, a first nail line groove 405 is provided on a side of the second reinforcing plate 402 opposite to the third reinforcing plate 403; the opposite side of the third reinforcing plate 403 to the second reinforcing plate 402 is provided with a second nail line groove 406. So configured, the first tack groove 405 and the second tack groove 406 can improve the ease of connecting the stiffener 40 to other components.

Referring to fig. 7, in a second aspect, the embodiment of the present invention further provides a photovoltaic curtain wall, including a keel 50a, a plurality of photovoltaic units electrically connected together, where the photovoltaic unit is the photovoltaic unit described in the first aspect and/or any one of the implementation manners of the first aspect. A plurality of photovoltaic units are securely attached to the keel 50 a. The sub frames 30 included in two adjacent photovoltaic units form a cavity 60a therebetween. The photovoltaic modules 10 included in two adjacent photovoltaic units have a gap 70a therebetween. The connector 20 enters/exits the cavity 60a through the slit 70 a.

Referring to fig. 7, the fastening connection manner of the photovoltaic unit and the keel 50a is various and is not particularly limited herein. For example, a T-shaped pressing block 80A may be provided in the cavity 60A, and both flanges of the T-shaped pressing block 80A may abut against the inner sides of the first connection portions b of the long frames 301 included in the two adjacent sub-frames 30. At this time, the self-tapping screw 90A is inserted through the T-shaped pressing block 80A and then fastened to the keel 50A.

Referring to fig. 7, in practical application, the connectors 20 correspondingly disposed on two adjacent photovoltaic units can be simultaneously pulled out of the cavity 60a through the slits 70a, and then pulled back into the cavity 60a through the slits 70a after being butted. According to above application process, the utility model provides a photovoltaic curtain wall has wire connector 20 simple to operate's characteristics. On this basis, the gap 70a is sealed with a sealing member 71a such as a foam bar and sealant. At this time, the second accommodating space 400 of the reinforcing member 40 forms an isobaric chamber with the cavity 60a through the through hole d, so that rainwater, dust and the like can be effectively placed in the isobaric chamber, and cleanliness of the isobaric chamber is ensured.

Referring to fig. 8, a third aspect, an embodiment of the present invention further provides a photovoltaic roof, including: the roof plate 51b, the keel 50b, and the keel 50b are fixedly connected with the roof plate 51 b. A plurality of photovoltaic units electrically connected together, a photovoltaic unit being a photovoltaic unit according to the first aspect and/or any implementation manner of the first aspect. A plurality of photovoltaic units are securely attached to the keel 50 b. The sub-frames 30 included in two adjacent photovoltaic units form a cavity 60b therebetween. The photovoltaic modules 10 included in two adjacent photovoltaic units have a gap 70b therebetween. The connector 20 enters/exits the cavity 60b through the slit 70 b.

Referring to fig. 8, in particular, the roof plate 51b is fastened to the aluminum alloy high-strength support 52b by self-tapping nails, for example, and the side of the aluminum alloy high-strength support 52b away from the roof plate 51b may be fastened to the keel 50b (the keel 50b may also be an aluminum alloy keel) by an aluminum alloy fastener 53 b. The connection mode of the keel 50b and the photovoltaic unit is the same as that of the photovoltaic unit and the keel 50b in the photovoltaic curtain wall, and the description is omitted here.

Referring to fig. 8, the difference from the above-mentioned photovoltaic curtain wall is that, in view of the sealing of the photovoltaic roof by the roof panels 51b, the gap 70b between the photovoltaic modules 10 included in two adjacent photovoltaic units may or may not be sealed with a sealing member.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A photovoltaic unit, comprising:

a photovoltaic component is provided with a photovoltaic component,

the wire connector is electrically connected with a junction box included by the photovoltaic assembly;

the auxiliary frame is connected to the backlight surface of the photovoltaic module; and a through hole is formed through the auxiliary frame and used for leading out the wire connector.

2. The photovoltaic unit of claim 1, wherein an outer edge of the sub-frame has a first receiving space for receiving the wire connector.

3. The photovoltaic unit of claim 2, wherein the sub-bezel comprises: the long frame and the short frame are connected end to form the auxiliary frame in a surrounding manner;

the long frame and the short frame both comprise:

a carrier having opposing first and second sides in a direction perpendicular to the photovoltaic assembly;

the first connecting part extends from the first side to a direction far away from the photovoltaic module and is used for being connected with a building surface;

the second connecting part extends from the second side to a direction far away from the photovoltaic module and is used for being connected with the photovoltaic module;

a space formed by enclosing the bearing part, the first connecting part and the second connecting part is the first accommodating space;

the through hole is formed through the bearing part of the long frame and/or the short frame.

4. The photovoltaic unit of claim 3, wherein the long and short borders further comprise: the limiting bulge extends from the second side to a direction which is perpendicular to the photovoltaic assembly and is close to the photovoltaic assembly to form the limiting bulge; the second connecting part is connected with the photovoltaic assembly through a composite adhesive tape, and the limiting bulge is used for limiting the position of the composite adhesive tape; and/or the presence of a gas in the gas,

a first mounting groove is formed in one surface, opposite to the building surface, of the first connecting part; the first mounting groove is used for clamping a first adhesive tape adhered to the building surface.

5. The photovoltaic unit of claim 1, further comprising:

a reinforcement member connected to the photovoltaic module, the reinforcement member having a second accommodation space in which the junction box is accommodated; the end part of the reinforcing part is connected with the auxiliary frame, and the through hole is formed in the area where the auxiliary frame is connected with the reinforcing part.

6. The photovoltaic unit of claim 5, wherein the stiffener comprises:

a first stiffener having opposing first and second sides in a direction parallel to the photovoltaic assembly;

a second stiffener plate extending from the first side in a direction closer to the photovoltaic module;

a third stiffener plate extending from the second side in a direction closer to the photovoltaic module;

a space formed by enclosing the first reinforcing plate, the second reinforcing plate and the third reinforcing plate is the second accommodating space; the second reinforcing plate and the third reinforcing plate are provided with extending ends which are connected to the photovoltaic module; the second reinforcing plate and the third reinforcing plate have ends connected to the sub-frame.

7. The photovoltaic unit according to claim 6, wherein the extending ends of the second reinforcing plate and the third reinforcing plate are respectively provided with a second mounting groove, and the second mounting grooves are used for clamping a second adhesive tape adhered to the photovoltaic module; and/or the presence of a gas in the gas,

a first nail line slot is formed in one surface, opposite to the third reinforcing plate, of the second reinforcing plate; and a second nail wire slot is formed in one surface of the third reinforcing plate opposite to the second reinforcing plate.

8. The utility model provides a photovoltaic curtain wall which characterized in that, photovoltaic curtain wall includes:

the keel is provided with a plurality of grooves,

a plurality of photovoltaic units electrically connected together, the photovoltaic units being as claimed in any one of claims 1 to 7; a plurality of photovoltaic units are fixedly connected with the keel;

a cavity is formed between the secondary frames of two adjacent photovoltaic units;

gaps are formed between the photovoltaic components of two adjacent photovoltaic units; the wire connector of the photovoltaic unit enters/exits the cavity through the slit.

9. The photovoltaic curtain wall of claim 8, wherein the photovoltaic unit is the photovoltaic unit of any one of claims 5 to 7;

in the assembled state, the gap is filled by a seal; at this time, the second accommodating space of the reinforcing member of the photovoltaic unit forms an equal-pressure cavity with the cavity through the through hole of the photovoltaic unit.

10. A photovoltaic roof, comprising:

the roof plate is provided with a plurality of roof plates,

the keel is fixedly connected with the roof plate;

a plurality of photovoltaic units electrically connected together, the photovoltaic units of any one of claims 1 to 7; a plurality of photovoltaic units are fixedly connected with the keel;

a cavity is formed between the secondary frames of two adjacent photovoltaic units;

gaps are formed between the photovoltaic modules included in two adjacent photovoltaic units; the wire connector of the photovoltaic unit enters/exits the cavity through the slit.

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