CN205986759U - Photovoltaic module - Google Patents

Abstract

The utility model discloses a photovoltaic module, comprising: a solar panel, having a plurality of solar power generation units and at least a pair of bus bars electrically connected to the plurality of solar power generation units; and a junction box, installed on the solar panel, It has a box body and a plurality of conductive terminals and at least one diode accommodated in the box body. The at least one diode is arranged in a first area inside the box, and the first area is away from the solar power generation unit. In the present invention, since the diode is located in the junction box in the first area away from the solar power generation unit. Therefore, the diode is far away from the solar power generation unit, avoiding the mutual influence of the two due to heat generation, improving the power generation efficiency of the solar panel, and also improving the service life of the diode and the solar power generation unit.

Description

Photovoltaic modules

technical field

The utility model relates to a photovoltaic module comprising a solar panel and a junction box installed on the solar panel.

Background technique

A solar panel (or called a solar panel) is a device that collects and converts solar energy into electrical energy. A solar panel generally includes a plurality of solar power generation units (or silicon wafers) arranged in an array and connected in series. A junction box generally includes a plurality of conductive terminals and one or more diodes disposed within a box body of the junction box. Each diode is connected in series between two adjacent conductive terminals. A plurality of solar power generation units are electrically connected to corresponding conductive terminals in the junction box through one or more pairs of bus bars.

The diode is the core component of the junction box. When the diode is working, it will generate a lot of heat. In the prior art, the diode is usually located in the lower part of the bus bar installation area. After the junction box is installed on the solar panel, the diode is usually located directly above the solar power generation unit. The diode and the solar power generation unit overlap up and down. The distance between the two very close. Since the solar power generation unit also generates a lot of heat when it is working, the diode and the solar power generation unit will affect each other due to heat generation, which will increase the temperature of the two, which will not only reduce the power generation efficiency of the solar panel, but also reduce Lifetime of diodes and solar power units.

Utility model content

The purpose of this utility model is to solve at least one aspect of the above-mentioned problems and defects existing in the prior art.

According to one aspect of the present utility model, there is provided a photovoltaic module, comprising: a solar panel having a plurality of solar power generation units and at least one pair of bus bars electrically connected to the plurality of solar power generation units; and a junction box installed on the The solar panel has a box body and a plurality of conductive terminals and at least one diode accommodated in the box body. The at least one diode is arranged in a first area inside the box, and the first area is away from the solar power generation unit.

According to an exemplary embodiment of the present invention, the at least one pair of bus bars protrudes into a second area inside the box, and the second area is close to the solar power generation unit.

According to another exemplary embodiment of the present utility model, in a plan view projected along a direction perpendicular to the surface of the solar panel, the first region does not overlap with the solar power generation unit or is separated by a predetermined distance.

According to another exemplary embodiment of the present utility model, in a plan view projected along a direction perpendicular to the surface of the solar panel, the second region at least partially overlaps with the solar power generation unit.

According to another exemplary embodiment of the present utility model, the second area is located right above the solar power generation unit.

According to another exemplary embodiment of the present utility model, the box body is in the shape of a cuboid with a length direction and a width direction.

According to another exemplary embodiment of the present invention, the plurality of conductive terminals are arranged in a row at intervals along the length direction of the box body.

According to another exemplary embodiment of the present utility model, the ends of the at least one pair of bus bars protrude into the box and are welded to the corresponding conductive terminals.

According to another exemplary embodiment of the present invention, the junction box further includes a first cable and a second cable, and one end of the first cable and the second cable extend into the box from both ends of the box body respectively. Inside the box, and electrically connected to the corresponding conductive terminals.

According to another exemplary embodiment of the present invention, the junction box further includes a first connector and a second connector, and the first connector and the second connector are respectively electrically connected to the first cable and the the other end of the second cable.

According to another exemplary embodiment of the present invention, one of the first connector and the second connector is a male connector, and the other is a female connector suitable for mating with the male connector. type connector.

In each of the above exemplary embodiments according to the present invention, after the junction box is installed on the solar panel, the diode is located in the first area in the junction box away from the solar power generation unit. Therefore, the diode is far away from the solar power generation unit, avoiding the mutual influence of the two due to heat generation, improving the power generation efficiency of the solar panel, and also improving the service life of the diode and the solar power generation unit.

Through the following description of the utility model with reference to the accompanying drawings, other purposes and advantages of the utility model will be apparent, and can help to have a comprehensive understanding of the utility model.

Description of drawings

Fig. 1 shows a top view of a photovoltaic module according to an exemplary embodiment of the present invention;

Figure 2 shows a partial enlarged schematic diagram of the photovoltaic module shown in Figure 1;

Figure 3 shows a top view of the junction box of the photovoltaic module shown in Figure 2; and

FIG. 4 shows a partially enlarged schematic diagram of the junction box shown in FIG. 3 .

detailed description

The technical solutions of the present utility model will be further specifically described below through the embodiments and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals designate the same or similar components. The following descriptions of the embodiments of the utility model with reference to the accompanying drawings are intended to explain the overall utility model concept of the utility model, and should not be construed as a limitation of the utility model.

In addition, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a comprehensive understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in diagrammatic form to simplify the drawings.

According to a general technical idea of the present invention, a photovoltaic assembly is provided, including: a solar panel having a plurality of solar power generation units and at least one pair of bus bars electrically connected to the plurality of solar power generation units; and a junction box installed On the solar panel, there is a box body and a plurality of conductive terminals and at least one diode accommodated in the box body. The at least one diode is arranged in a first area inside the box, and the first area is away from the solar power generation unit.

Fig. 1 shows a top view of a photovoltaic module according to an exemplary embodiment of the present invention; Fig. 2 shows a partially enlarged schematic diagram of the photovoltaic module shown in Fig. 1; Fig. 3 shows a junction box 200 of the photovoltaic module shown in Fig. 2 top view; and FIG. 4 shows a partially enlarged schematic view of the junction box 200 shown in FIG. 3 .

As shown in FIGS. 1 to 4 , in the illustrated embodiment, the photovoltaic module mainly includes a solar panel 100 and a junction box 200 installed on the solar panel 100 .

As shown in FIGS. 1 and 2 , in the illustrated embodiment, the solar panel 100 has a plurality of solar power generation units 110 and at least one pair of bus bars 111 electrically connected to the plurality of solar power generation units 110 . In the illustrated embodiment, a plurality of solar power generation units 110 on the solar panel 100 are arranged in a matrix with multiple rows and columns, and are connected in series.

As shown in FIGS. 3 and 4 , in the illustrated embodiment, the junction box 200 has a box body 210 and a plurality of conductive terminals 220 and at least one diode 230 accommodated in the box body 210 .

As shown in FIG. 2 , in an embodiment of the present invention, at least one diode 230 is disposed in a first area inside the box body 210 , and the first area is away from the solar power generation unit 110 . As shown in FIG. 2 , after the junction box 200 is installed on the solar panel 100 , the diode 220 is located in a first area in the junction box 200 away from the solar power generation unit 110 . Therefore, the diode 220 is far away from the solar power generation unit 110 , avoiding the mutual influence of the two due to heat generation, improving the power generation efficiency of the solar panel 100 , and also improving the service life of the diode 220 and the solar power generation unit 110 .

As shown in FIGS. 2 to 4 , in the illustrated embodiment, at least one pair of bus bars 111 protrudes into a second area inside the box body 210 , and the second area is close to the solar power generation unit 110 .

As shown in FIG. 2 , in a plan view projected along a direction perpendicular to the surface of the solar panel 100 , the first region where the at least one diode 230 is located does not overlap with the solar power generation unit 110 or is separated by a predetermined distance.

As shown in FIG. 2 , in a plan view projected along a direction perpendicular to the surface of the solar panel 100 , the second area where at least one pair of bus bars 111 are located overlaps with the solar power generation unit 110 at least partially. In the illustrated embodiment, as shown in FIG. 2 , the second area where at least one pair of bus bars 111 are located is located directly above the solar power generation unit 110 and completely overlaps with the solar power generation unit 110 .

As shown in FIG. 4 , in the illustrated embodiment, the box body 210 is in the shape of a cuboid with a length direction Y and a width direction X. A plurality of conductive terminals 220 are arranged in a row at intervals along the longitudinal direction Y of the box body 210 .

As shown in FIGS. 2 to 4 , in the illustrated embodiment, ends of at least one pair of bus bars 111 protrude into the box body 210 and are welded to corresponding conductive terminals 220 .

As shown in FIGS. 1 to 4 , in the illustrated embodiment, the junction box 200 also includes a first cable 251 and a second cable 252 , and one end of the first cable 251 and the second cable 252 are connected from two ends of the box body 210 respectively. The ends protrude into the box body 210, and the conductors 2510, 2520 of the first cable 251 and the second cable 252 are electrically connected to corresponding conductive terminals 220, 220, respectively.

As shown in Figures 1 to 4, in the illustrated embodiment, the junction box 200 further includes a first connector 241 and a second connector 242, and the first connector 241 and the second connector 242 are electrically connected to the first connector 242 respectively. A cable 251 and the other end of a second cable 252.

As shown in Figures 1 to 4, in the illustrated embodiment, one of the first connector 241 and the second connector 242 is a male connector, and the other is a male connector suitable for mating with the male connector. female connector.

As shown in FIGS. 1 to 4 , in the illustrated embodiment, four conductive terminals 220 and three diodes 230 are arranged in the box body 210 of the junction box 200 , and between two adjacent conductive terminals 220 A diode 230 is connected in series. The four bus bars 111 drawn from the solar panel 200 extend into the box body 210 and are respectively welded to the four conductive terminals 220 .

Although the utility model has been described in conjunction with the drawings, the embodiments disclosed in the drawings are intended to illustrate the implementation of the utility model, and should not be construed as a limitation to the utility model.

While certain embodiments of the present general inventive concept have been shown and described, those of ordinary skill in the art will appreciate that changes may be made to these embodiments without departing from the principles and spirit of the present general inventive concept, the present invention The scope of the utility model is defined by the claims and their equivalents.

It should be noted that, herein, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. Additionally, any element references in the claims should not be construed as limiting the scope of the present invention.

Claims (11)

1. a kind of photovoltaic module, including：

Solar panel (100), have multiple solar power generation units (110) and with the plurality of solar power generation unit (110) at least one pair of busbar (111) electrically connecting；With

Rosette (200), is arranged on described solar panel (100), has box body (210) and is contained in described box body (210) the multiple conducting terminals (220) in and at least one diode (230),

It is characterized in that：

Described at least one diode (230) is arranged on the first area in described box body (210), and described first area Away from described solar power generation unit (110).

2. photovoltaic module according to claim 1 it is characterised in that：

Described at least one pair of busbar (111) stretches into the second area in described box body (210), and described second area is close Described solar power generation unit (110).

3. photovoltaic module according to claim 2 it is characterised in that：

Along along the top view of the direction projection vertical with the surface of described solar panel (100), described first area and institute State the not overlapping or spaced apart preset distance of solar power generation unit (110).

4. photovoltaic module according to claim 3 it is characterised in that：

Along along the top view of the direction projection vertical with the surface of described solar panel (100), described second area and institute State solar power generation unit (110) overlapping at least in part.

5. photovoltaic module according to claim 4 it is characterised in that：Described second area is located at described solar electrical energy generation list The surface of first (110).

6. photovoltaic module according to claim 2 it is characterised in that：Described box body (210) is in rectangular shape, has length Degree direction (Y) and width (X).

7. photovoltaic module according to claim 6 it is characterised in that：

The plurality of conducting terminal (220) is in line along length direction (Y) compartment of terrain of described box body (210).

8. photovoltaic module according to claim 7 it is characterised in that：

The end of described at least one pair of busbar (111) is stretched in described box body (210), and is soldered to corresponding conducting terminal (220) on.

9. photovoltaic module according to claim 1 it is characterised in that：

Described rosette (200) also includes the first cable (251) and the second cable (252), described first cable (251) and second One end of cable (252) is stretched in described box body (210) from the two ends of described box body (210) respectively, and is electrically connected to corresponding Conducting terminal (220).

10. photovoltaic module according to claim 9 it is characterised in that：

Described rosette (200) also includes the first adapter (241) and the second adapter (242), described first adapter (241) It is respectively electrically connected to the other end of described first cable (251) and the second cable (252) with the second adapter (242).

11. photovoltaic modulies according to claim 10 it is characterised in that：

One of described first adapter (241) and described second adapter (242) are male connector, and another is to be suitable to With this male connector to the female type connectors joined.