CN104701399A - Solar cell module, automobile skylight and method for making solar cell module - Google Patents

Abstract

The invention provides a solar cell module, an automobile sunroof and a method for manufacturing the solar cell module. The solar cell module includes: a plurality of packaging units, and a connection assembly, the connection assembly is used to realize the mechanical connection and electrical connection between the plurality of packaging units, the packaging unit includes: at least one solar battery sheet; and a transparent An optical insulating layer surrounds the at least one solar cell sheet. The automotive sunroof includes the solar cell module. The method includes: forming a plurality of packaging units; and electrically and mechanically connecting the plurality of packaging units; wherein, the step of forming each of the packaging units includes: forming at least one solar battery sheet; and forming a light-transmitting insulating layer surrounding the at least one solar cell sheet. The invention can improve the application range of the solar battery module and achieve the effect of energy saving.

Description

Solar cell module, car sunroof and method for manufacturing solar cell module

technical field

The invention relates to the technical field of solar energy, in particular to a solar cell module, an automobile sunroof and a method for manufacturing the solar cell module.

Background technique

A solar cell is a thin sheet of semiconductor that uses sunlight to directly generate electricity. Solar cells mainly include the following components: cells for power generation, tempered glass for protecting cells, ethylene-vinyl acetate copolymer (EVA) for bonding and fixing tempered glass and cells, and backplanes for sealing, insulating and waterproofing , the aluminum alloy protective laminate that acts as a seal and support, the junction box that acts as a current transfer station, and the silicone that achieves sealing, etc.

Cells as the main body of power generation are one of the hotspots in the field of solar technology research. Referring to FIG. 1 , it shows a schematic structural diagram of a battery sheet in the prior art. The battery sheet 10 includes: a positive electrode 11 , a P-type silicon 12 , an N-type silicon 13 and a negative electrode 14 . A PN junction is formed at the junction of the P-type silicon 12 and the N-type silicon 13 .

When sunlight (as shown by the arrow in Figure 1) shines on the PN junction, new hole-electron pairs will be formed. Under the action of the electric field of the PN junction, the photogenerated holes flow to the P-type silicon 12, and the photogenerated electrons flow to the N-type silicon 13. , A current can be formed after the negative electrode 14 and the positive electrode 11 are connected to the circuit.

In the prior art, the solar cell is a flat plate structure, and is generally packaged as a whole. Therefore, the application range of the solar cell is limited to a certain extent.

Contents of the invention

Therefore, there is a need for a solar cell module, a car sunroof, and a method for manufacturing the solar cell module, so as to improve the application range of the solar cell module.

According to one aspect of the present invention, a solar cell module is provided, including: a plurality of packaging units, and a connection assembly, the connection assembly is used to realize the mechanical connection and electrical connection between the plurality of packaging units, the packaging unit It includes: at least one solar cell; and a light-transmitting insulating layer surrounding the at least one solar cell.

A basic idea is that different numbers and arrangements of packaging units can be set according to the usage scenarios of the solar cell module, thereby improving the flexibility of using the solar cell module and extending the use range of the solar cell module.

In addition, in the case of a car sunroof assembled from multiple solar cell modules, if one solar cell module is damaged, another solar cell module can be used instead, avoiding the need to replace the entire car sunroof, thus reducing replacement costs.

According to another aspect of the present invention, the connection assembly includes a plurality of connection units, the plurality of connection units are respectively integrated into the plurality of packaging units, and the connection unit includes: a first plug, located at the packaging unit The first end face is electrically connected to one of the positive and negative lead outs of the at least one solar cell; and the second insert is located at a second end face opposite to the first end face and connected to the at least one solar cell The other electrical connection of the positive lead and the negative lead, wherein the structures of the first plug-in and the second plug-in match, so that when the first plug-in of one package unit is plugged into the second plug-in of another package unit, Achieve mechanical connection and electrical connection.

A basic idea is that the connecting unit is integrated into the packaging unit so as to save the space occupied by the connecting unit, increase the occupancy of solar cells in the solar cell module, and improve the light conversion efficiency of the solar cell module.

According to another aspect of the present invention, an automobile sunroof is provided, including the solar cell module.

A basic idea is that the sunroof of an automobile can convert light energy into electrical energy due to its solar cell module, and the electrical energy can be used for interior lighting to achieve energy-saving effects.

According to another aspect of the present invention, there is provided a method of manufacturing a solar cell module, comprising: forming a plurality of encapsulation units; and electrically and mechanically connecting the plurality of encapsulation units; wherein each of the encapsulation units is formed The steps include: forming at least one solar cell sheet; and forming a light-transmitting insulating layer to surround the at least one solar cell sheet.

A basic idea is that the solar cell module manufactured by the method of the present invention can flexibly assemble packaging units according to usage scenarios, which expands the use range of the solar cell module.

Description of drawings

FIG. 1 is a schematic structural view of a battery sheet in the prior art;

2 is a schematic diagram of an embodiment of the solar cell module of the present invention;

Fig. 3 is a three-dimensional structural schematic diagram of an embodiment of the packaging unit and the connection assembly shown in Fig. 2;

Fig. 4 is a top view of the packaging unit shown in Fig. 2;

Fig. 5 is a side view of the packaging unit shown in Fig. 2;

Fig. 6 is a three-dimensional structural schematic diagram of an embodiment of the first insert in Fig. 3;

Fig. 7 is a three-dimensional structural schematic view of an embodiment of the second insert in Fig. 3;

Fig. 8 is a projection relationship diagram of the first plug-in shown in Fig. 6 and the second plug-in shown in Fig. 7;

Fig. 9 is a schematic perspective view of another embodiment of the first insert in Fig. 3;

Fig. 10 is a schematic perspective view of another embodiment of the second insert in Fig. 3;

Fig. 11 is a projection relationship diagram of the first plug-in shown in Fig. 9 and the second plug-in shown in Fig. 10;

Fig. 12 is a schematic diagram of another embodiment of the first plug-in and the second plug-in;

Fig. 13 is a schematic diagram of another embodiment of the first plug-in and the second plug-in;

Fig. 14 is a schematic diagram of another embodiment of the solar cell module of the present invention;

Fig. 15 is a top view of another embodiment of the solar cell module of the present invention;

Fig. 16 is a side view of the solar cell module shown in Fig. 15;

FIG. 17 is a schematic flowchart of an embodiment of the method for manufacturing a solar cell module according to the present invention.

Detailed ways

In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

In order to solve the technical problems described in the background art, the present invention provides a solar cell module. Referring to FIG. 2 and FIG. 3 , a three-dimensional structure diagram and a partially enlarged view of an embodiment of the solar cell module of the present invention are respectively shown. The solar cell module 100 includes:

A plurality of encapsulation units 101 (only four encapsulation units 101 are taken as an example in FIG. 2 , which should not limit the present invention), and the encapsulation units 101 include:

The solar cell sheet 1011 is used as the power generating body of the solar cell module 100 for converting light energy into electrical energy.

The light-transmitting insulating layer 1012 surrounds the at least one solar battery sheet 1011 . The light-transmitting insulating layer 1012 can transmit light, so that the light can be radiated to the solar cells 1011 . In addition, the light-transmitting insulating layer 1012 is also an insulating material to realize the insulation of the solar cells 1011 in different packaging units 101 . In addition, the light-transmitting insulating layer 1012 also serves to provide mechanical protection for the solar cells 1011 .

The solar cell module 100 further includes: a connection assembly 102 , the connection assembly 102 is used to realize the mechanical connection and electrical connection between the plurality of packaging units 101 .

The solar cell module 100 in this embodiment includes a plurality of packaging units 101 , and the packaging units 101 can be mechanically and electrically connected through a connecting component 102 . According to the usage scenarios of the solar cell module 100 , different numbers and arrangements of the encapsulation units 101 can be provided, thereby improving the usage flexibility of the solar cell module 100 and further improving the usage range of the solar cell module 100 .

Especially, for the case where the application surface is a curved surface, by arranging multiple packaging units 101 and connection components 102, the multiple packaging units 101 can be arranged along the curved surface, so that the solar cell module 100 can be applied on the curved surface.

In addition, in the case of a car sunroof assembled from multiple solar cell modules, if one solar cell module is damaged, another solar cell module can be used instead, avoiding the need to replace the entire car sunroof, thus reducing replacement costs.

Please continue to refer to FIG. 3 together with the top view and side view of the packaging unit 101 shown in FIG. 4 and FIG. 5 .

As shown in FIG. 3 , the packaging unit 101 in this embodiment is a cuboid, and the cuboid packaging unit 101 can be easily interconnected along the length direction or along the width direction, so as to realize the flexible configuration and assembly of the solar cell module 100, but The present invention does not limit the shape of the packaging unit 101 .

If the length L, width M or thickness H of the encapsulation unit 101 is too small, the size of the solar cell 1011 is correspondingly small, and the small light receiving area is not conducive to the conversion of light energy into electric energy. On the other hand, if the thickness H of the packaging unit 101 is too large, the packaging unit 101 will be thick and heavy, which is not convenient for assembly and will reduce the light transmittance.

Optionally, the packaging unit 101 has a length L greater than or equal to 66.5 mm, a width M greater than or equal to 16.5 mm, and a thickness H greater than or equal to 3 mm and less than or equal to 10 mm.

Specifically, the packaging unit 101 includes:

A solar battery sheet 1011, specifically, the solar battery sheet 1011 includes from bottom to top: positive electrode (not shown), P-type silicon (not shown), N-type silicon (not shown) and negative electrode (not shown) Show). The P-type silicon and N-type silicon are used to generate photo-generated carriers, and the negative and positive electrodes are used to lead out the photo-generated carriers to form current.

It should be noted that only one solar cell 1011 is shown in FIG. 3 , and a plurality of solar cells 1011 may also be included in one packaging unit 101, and the plurality of solar cells 1011 may be connected in series or in parallel in the packaging unit 101. connect. Alternatively, the plurality of solar cells 1011 may be arranged in stacked layers or in a matrix in the packaging unit 101 .

The encapsulation unit 101 further includes: a light-transmitting insulating layer 1012 surrounding the solar cells 1011 .

Specifically, the material of the light-transmitting insulating layer 1012 may be a material with high light transmittance and good insulation, such as resin. The resin may be one or more of PMMA, PC, PET and epoxy resin.

As shown in Figure 4 and Figure 5, if the thickness H1 of the light-transmitting insulating layer 1012 on the light-receiving surface of the packaging unit 101 is too large, it will easily affect the light transmittance; if the thickness H1 is too small, it will not be easy to realize the insulation of the solar cells 1011. . And if the thickness H2 of the light-transmitting insulating layer 1012 on the backlight surface of the packaging unit 101 and the thickness W1 on the side of the packaging unit 101 are too large, it is easy to make the packaging unit 101 too thick and heavy, which will affect the packaging of the solar cells 1011. The area occupancy ratio of the unit 101 is also not conducive to the assembly of the packaging unit 101; and if H2 and W1 are too small, the insulation effect will be easily affected.

Therefore, optionally, the thickness H1 of the light-transmitting insulating layer 1012 on the light-receiving surface of the packaging unit 101 is greater than or equal to 1 mm and less than or equal to 5 mm, and the thickness H2 on the backlight surface of the packaging unit 101 is greater than or equal to 2 mm and less than or equal to 5 mm, and the thickness W1 on the side of the packaging unit 101 is greater than or equal to 2 mm and less than or equal to 200 mm.

In this embodiment, the connecting component 102 includes a plurality of connecting units. Specifically, the connection unit includes:

The first insert 1021 is located on the first end surface of the packaging unit 101 (the right end surface of the packaging unit 101 shown in FIG. 3 ), the first insert 1021 penetrates the light-transmitting insulating layer 1012 on the first end surface of the packaging unit 101 and flush with the first end surface of the packaging unit 101 , one end of the first insert 1021 inside the packaging unit 101 is electrically connected to the positive lead (or negative lead) of the solar cell 1011 ;

The second insert 1022 is located on the second end surface opposite to the first end surface (the left end surface of the packaging unit 101 shown in FIG. 3 ), and the second insert 1022 penetrates through the light-transmitting insulating layer of the second end surface of the packaging unit 101 1012 protruding from the second end face of the packaging unit 101, one end of the second insert 1022 inside the packaging unit 101 is electrically connected to the negative lead (or positive lead) of the solar cell 1011;

The structures of the first plug-in 1021 and the second plug-in 1022 match, so that when the first plug-in 1021 of one packaging unit 101 is plugged into the second plug-in 1022 of another packaging unit 101 (for example, an adjacent packaging unit), the Mechanical and electrical connections.

It should be noted that when the packaging unit 101 includes a plurality of solar cells 1011 connected in series, the positive lead is electrically connected to the positive electrode of the solar cell 1011 at one end of the series, and the negative lead is electrically connected to the other end of the series. One end is the negative electrode of the solar cell sheet 1011 .

When the packaging unit 101 includes a plurality of solar cells 1011 connected in parallel, the positive lead is electrically connected to the positive electrodes of the plurality of solar cells 1011, and the negative lead is electrically connected to the negative electrodes of the plurality of solar cells 1011. .

It should be noted that the positive and negative electrodes described here can be drawn out in common ways such as solar cells or chips, for example, drawn out through bus bars, or drawn out through metal printed lines, or any other suitable way of drawing out. Correspondingly, the first and second inserts can be connected to the positive lead and the negative lead by plugging, wire connection, or any other suitable way.

In this embodiment, the connecting unit is integrated into the packaging unit 101, so as to save the space occupied by the connecting unit, increase the occupancy rate of the solar cell sheet 1011 in the solar cell module 100, and improve the light intensity of the solar cell module 100. conversion efficiency.

Referring to Fig. 6 to Fig. 8, respectively show the three-dimensional structural diagram of an embodiment of the first plug-in in Fig. 3, the stereoscopic structural schematic diagram of an embodiment of the second plug-in in Fig. 3 and the projection views of the first plug-in and the second plug-in.

In this embodiment, the first insert 1021 includes: a conductive pin 1121 extending from the first end surface of the packaging unit 101, and a first insulating shell 1221 for accommodating the conductive pin 1121, wherein the conductive pin 1121 is connected to the The positive lead (or negative lead) of the solar cells 1011 is electrically connected.

The second insert 1022 includes: a hollow conductive column 1122 extending from the second end surface of the packaging unit 101 toward the interior of the light-transmitting insulating layer 1012 , and a second insulating shell 1222 accommodating the hollow conductive column 1122 , wherein the hollow The conductive column 1122 is electrically connected to the negative lead (or positive lead) of the solar cell 1011 .

As shown in Figure 8, the shape and size of the conductive needle 1121 matches the hollow conductive column 1122 (the projection line shown by the dotted line in Figure 8), the first insulating shell 1221 and the second insulating shell 1222 are matched in shape and size (the projection line shown by the dotted line in FIG. The hollow conductive column 1122 of the second plug-in 1022 of the unit 101), so as to realize electrical connection; at the same time, the first insulating shell 1221 of the first plug-in 1021 of the one packaging unit 101 is socketed on the second plug of the other packaging unit 101. The second insulating shell 1222 of the plug-in 1022 insulates the conductive needle 1121 and the hollow conductive post 1122 from the outside, and at the same time realizes mechanical connection.

Specifically, the material of the conductive needle 1121 and the hollow conductive pillar 1122 may be metal, such as aluminum or copper.

The material of the first insulating shell 1221 and the second insulating shell 1222 may be insulating resin. For example: PMMA, etc.

A plurality of packaging units 101 can be electrically and mechanically connected through the first plug-in 1021 of one packaging unit 101 and the second plug-in 1022 of another packaging unit 101, which are arranged oppositely, so as to realize the series connection of multiple packaging units 101, thereby A solar cell module 100 that can be flexibly assembled can be obtained.

The present invention does not limit the implementation of the connection unit. With reference to FIGS. 9 to 11 , a schematic three-dimensional structure diagram of an alternative example of the first plug-in in FIG. 3 , a schematic three-dimensional structural diagram of an alternative example of the second plug-in in FIG. 3 , and Projection diagram of the first and second inserts.

The similarities between this embodiment and the embodiment shown in Fig. 6 to Fig. 8 will not be repeated, and the difference is:

A protrusion 2321 is provided on the outer wall of the conductive needle 2121 in the first insert 2021 (here, the upper surface of the conductive needle 2121 );

A recess 2322 is provided on the inner wall of the hollow conductive column 2122 in the second insert 2022 (here, the inner wall of the upper surface of the hollow conductive column 2122 );

The convex part 2321 is matched with the concave part 2322 (shape, size, and position are all matched), so that when the first plug-in 2021 of the one packaging unit 101 is connected to the second plug-in 2022 of another packaging unit, the second The conductive pin 2121 of one plug-in 2021 can be inserted into and electrically contact the hollow conductive post 2122 of the second plug-in 2022 of another package unit 101, and the convex part 2321 on the conductive pin 2121 can be located in the concave part 2322 of the inner wall of the hollow conductive post 2122 , and the convex portion 2321 is in contact with the concave portion 2322 to realize electrical connection.

In this embodiment, the protruding portion 2321 is a hemispherical bump formed of metal material, and the concave portion 2322 is a hemispherical gap surrounded by the inner wall of the hollow conductive pillar 2122 .

In this embodiment, when the first plug 2021 and the second plug 2022 can be connected by setting the convex portion 2321 and the concave portion 2322, the convex portion 2321 can be embedded in the concave portion 2322, and the mechanical connection can be realized more firmly. And electrical connection, so that it is not easy to disconnect under the action of external force, and improve the reliability of the solar cell module.

Referring to FIG. 12 , it shows a schematic view of another embodiment of the first plug-in and the second plug-in.

In this embodiment, the first insert 3021 extends outward from the first end face of the packaging unit 101, thereby protruding from the first end face, and the part of the first insert 3021 protruding from the first end face includes:

The top surface 3121 is parallel to the first end surface;

a lower surface 3221, perpendicular to the top surface 3121, extending from the first end surface and terminating at the top surface 3121;

The upper surface 3321 is inclined from the first end to the direction close to the lower surface 3221, and ends at the top surface 3121;

The cantilever 3421 extends from the top surface 3121 in a direction parallel to the upper surface 3321, and the end of the cantilever 3421 is provided with a step protruding toward the upper surface 3321 (the part shown as a circle);

The first conductive strip (not shown in the figure) is located on the lower surface 3221 and is electrically connected to the positive lead (or negative lead) of the solar cell 1011 .

The second insert 3022 includes: a cavity 3122 located in the light-transmitting insulation 1012, the cavity 3122 is used to receive the first insert 3021, and the cavity 3122 includes:

an opening (not shown) on said second end face;

the lower surface 3222 is perpendicular to the second end surface;

The upper surface 3322 is inclined from the second end towards the lower surface 3222 of the second insert, and the angle formed by the upper surface 3322 and the lower surface 3222 of the cavity 3122 is equal to or smaller than the first the angle formed by the upper surface 3321 and the lower surface 3221 of the insert;

a flange 3422, located on the upper surface 3322 of the cavity 3122 and adjacent to the opening, protruding toward the lower surface 3222 of the cavity 3122;

The second conductive strip (not shown in the figure), located on the lower surface 3222 of the cavity 3122 , is electrically connected to the negative lead (positive lead) of the solar cell 1011 .

When the first plug 3021 of one packaging unit 101 is inserted into the second plug 3022 of another packaging unit 101, the first plug 3021 is located in the cavity 3122 of the second plug 3022, and the cantilever 3421 of the first plug 3021 Under the force of the flange 3422, it bends toward the lower surface 3221 of the first inserter 3021. When the flange 3422 passes through the step at the end of the cantilever 3421, the cantilever 3421 rebounds and aligns with the The upper surface 3322 of the cavity 3122 is abutted against, the stepped portion is engaged with the flange 3422, and the first conductive strip is abutted against the second conductive strip, so that the first plug-in 3021 and the second plug-in are realized. 3022 mechanical and electrical connections.

In this embodiment, the first insert 3021 and the second insert 3022 are engaged with the flange 3422 through the stepped portion, so the connection effect is better and it is not easy to disconnect.

In addition, when the first plug-in 3021 and the second plug-in 3022 are connected, the contact area between the first plug-in 3021 and the second plug-in 3022 is relatively small, so the frictional force is correspondingly small, and thus the insertion and removal are more convenient and free. When the first plug-in 3021 needs to be separated from the second plug-in 3022, the end of the cantilever 3421 can be pressed down so that the step of the cantilever 3421 is lower than the flange 3422 of the second plug-in 3022, and pulled out toward the direction away from the second plug-in 3022 The first plug-in 3021 . Therefore, the assembly and replacement of the packaging unit 102 is more convenient.

Referring to FIG. 13 , there is shown a schematic diagram of yet another embodiment of the first insert and the second insert. This embodiment combines the embodiments shown in FIGS. 6 to 8 and the cantilever and flange structure shown in FIG. 12 .

Specifically, the first insert 3021' includes: a conductive pin 3221' disposed on the first end surface of the packaging unit 101, and the conductive pin 3221' is located at one end inside the packaging unit 101 and the solar battery sheet The positive lead (or negative lead) of 1011 is electrically connected, and the conductive needle 3221' has an upper surface 3121' perpendicular to the first end face;

The cantilever 3421' located at the end of the conductive pin 3221' away from the packaging unit 101 and provided on the upper surface 3121', the end of the cantilever 3421' has a protruding step portion ( as circled).

The second plug-in 3022' includes: a hollow conductive post 3122' extending inwardly from the second end of the packaging unit 101, and a second insulating shell 3222' accommodating the hollow conductive post 3122', wherein the hollow conductive post 3122' The post 3122' is electrically connected to the negative lead (or positive lead) of the solar battery sheet 1011, the hollow conductive post 3122' includes an upper surface 3322' and a lower surface 3522' opposite to each other, and the hollow conductive post 3122' is not connected to A flange 3422 ′ is provided on the inner wall of the upper surface 3322 ′ of the connected end of the solar battery sheet 1011 .

When the first plug-in 3021' of one packaging unit 101 is inserted into the second plug-in 3022' of another packaging unit 101, the conductive pin 3221' of the first plug-in 3021' is located in the hollow conductive column 3122 of the second plug-in 3022' ', the cantilever 3421' of the first insert 3021' is bent toward the lower surface of the first insert 3021' under the force of the flange 3422', when the flange 3422' passes the cantilever 3421' When there is a step at the end, the cantilever 3421' rebounds and abuts against the upper surface 3322' of the hollow conductive column 3122', the step is engaged with the flange 3422', and the conductive needle 3221' The lower surface of the hollow conductive pillar 3122' is in contact with the lower surface 3522' of the hollow conductive pillar 3122', thereby realizing the mechanical connection and electrical connection of the first plug-in 3021' and the second plug-in 3022'.

It should be noted that, in the above embodiments, the connecting unit can realize the serial connection between the packaging units, but the present invention is not limited thereto.

Referring to FIG. 14 , it shows a schematic diagram of another embodiment of the solar cell module of the present invention. The connection assembly of this embodiment can realize the parallel connection of packaging units.

Specifically, in addition to the first plug-in 1021 and the second plug-in 1022 , the connecting assembly also includes a first parallel piece 4021 and a second parallel piece 4022 .

Wherein, the first parallel member 4021 includes:

The third plug-in 4121 matches the structure of the first plug-in 1021, so that when the third plug-in 4121 of the first parallel member 4021 is plugged into the first plug-in 1021 of a packaging unit 101, the first parallel connection is realized. The mechanical connection and electrical connection between the component 4021 and the packaging unit 101;

The first female plug element 4321 is electrically connected to the third plug 4121;

And the first male plug element 4221 is electrically connected with the third plug-in element 4121 and the first female plug element 4321;

The first male plug element 4221 matches the structure of the first female plug element 4321, so that the first female plug element 4321 of one first parallel piece 4021 is plugged into another first parallel piece 4021 (along the Y axis When the first male plug element 4221 of the first parallel piece) is used, the mechanical and electrical connections between the first parallel pieces 4021 are realized.

The second parallel member 4022 includes:

The fourth plug-in 4122 matches the structure of the second plug-in 1022, so that when the fourth plug-in 4122 of the second parallel member 4022 is plugged into the second plug-in 1022 of a packaging unit 101, the second parallel connection is realized. The mechanical connection and electrical connection between the component 4022 and the packaging unit 101;

The second female plug element 4322 is electrically connected to the fourth plug 4122;

And the second male plug element 4222 is electrically connected with the fourth inserter 4122 and the second female plug element 4322, wherein the second male plug element 4222 matches the structure of the second female plug element 4322, so that When the second female component 4322 of one second parallel component 4022 is plugged into the second male component 4222 of another second parallel component 4022 , the mechanical and electrical connections between the second parallel components 4022 are realized.

In this embodiment, the parallel connection of the packaging units 101 is realized through the first parallel piece 4021 connected to the first plug-in 1021 and the second parallel piece 4022 connected to the second plug-in 1022, which can further increase the flexibility of use of the solar cell module. In the usage scenario of the solar cell module, the combination of series connection and/or parallel connection further improves the usage range of the solar cell module.

Please continue to refer to FIG. 14 , in this embodiment, the first parallel member 4021 has a light-transmitting and insulating first cuboid-shaped body 4421 , and the third insert 4121 is located on the first surface of the body 4421 (Fig. 14, on the left side of the first cuboid-shaped body 4421), the first female plug element 4321 and the first male plug element 4221 are respectively located on the second surface perpendicular to the first surface (the first in FIG. 14 a cuboid-shaped body portion 4421) and a third surface (the front side of the first cuboid-shaped body portion 4421 in FIG. 14).

Correspondingly, the second parallel assembly 4022 also has a light-transmitting and insulating second cuboid-shaped body 4422, and the fourth insert 4122 is located on the first surface of the second cuboid-shaped body 4422 (Fig. On the right side of the body part 4422 in the shape of two cuboids), the second female plug element 4322 and the second male plug element 4222 are respectively located on the second surface perpendicular to the first surface (the second cuboid shape in FIG. 14 The rear side of the body portion 4422) and the third face (the front side of the second cuboid-shaped body portion 4422 in FIG. 14).

In this embodiment, the first inserter 1021 includes: a conductive pin 1121 extending from the first end surface of the packaging unit 101 , and a first insulating shell 1221 accommodating the conductive pin 1121 , wherein the conductive pin 1121 It is electrically connected with the positive lead (or negative lead) of the solar cells 1011 .

The third plug-in 4121 matched with the first plug-in 1021 includes: a hollow conductive post (not shown) extending from the first body-facing portion of the first parallel member 4021, and a hollow conductive The third insulating shell of the post (not shown in the figure), the hollow conductive post of the third plug-in 4121 matches the shape of the conductive pin 1121 of the first plug-in 4021, and the third insulating shell is insulated from the first The shape of the shell 1221 is matched, so that: the conductive pin 1121 of the first plug-in 1021 can be inserted into and electrically contact the hollow conductive column of the third plug-in 4121, and the first insulating shell 1221 of the first plug-in 1021 covers Connect to the third insulating shell of the third plug-in 4121.

That is to say, in this embodiment, the third insert 4121 has a structure similar to that of the second insert 1022, except that the third insert 4121 is arranged on the first cuboid-shaped body 4421, while the second insert 1022 is arranged on the packaging unit 101 on. This simplifies the connection components and facilitates flexible assembly.

The first male plug element 4221 connected to the third plug 4121 includes: a conductive pin 4521 extending from the third surface, and an insulating shell 4621 for accommodating the conductive pin 4521;

The first female plug element 4321 includes: a hollow conductive post (not shown in the figure) extending from the inside of the second facing body, and an insulating shell (not shown in the figure) accommodating the hollow conductive post. The conductive pin 4521 of the male plug element 4221 matches the shape of the hollow conductive column of the first female plug element 4321, and the insulating shell of the first male plug element 4221 matches the insulating shell of the first female plug element 4321. The shapes are matched, so that: the conductive pin 4521 of the first male plug element 4221 of one first parallel piece 4021 can be inserted into and electrically contacted with the hollow conductive column of the first female plug element 4321 of the other first parallel piece 4021, and the The insulating casing 4621 of the first male plug element 4221 of the first parallel piece 4021 is connected to the insulating casing 4621 of the first female plug element 4321 of the other first parallel piece 4021 .

In this embodiment, the second insert 1022 includes: a hollow conductive column (not shown) extending from the second end to the inside of the light-transmitting insulating layer, and a second insulating shell ( Not shown in the figure), wherein the hollow conductive pillar is electrically connected to the negative lead (positive lead) of the solar battery sheet.

The fourth insert 4122 matched with the second insert 1022 includes: a conductive pin 4522 extending from the second surface of the second parallel member 4022 , and a fourth insulating shell 4622 accommodating the conductive pin 4522 , the conductive pin 4522 of the fourth plug-in 4122 matches the shape of the hollow conductive column of the second plug-in 1022, and the shape of the fourth insulating shell 4622 matches the shape of the second insulating shell, so that: the The conductive pin 4522 of the fourth insert 4122 can be inserted into and electrically contact the hollow conductive column of the second insert 1022 , and the second insulating shell of the second insert 1022 is sleeved by the fourth insulating shell of the fourth insert 4122 .

That is to say, the fourth plug-in 4122 in this embodiment has a structure similar to that of the first plug-in 1021, except that the fourth plug-in 4122 is arranged on the second cuboid-shaped body 4422, while the first plug-in 1021 is arranged on the packaging unit 101 on. This simplifies the connection components and facilitates flexible assembly.

The second male plug element 4222 connected to the fourth insert 4122 has a structure similar to that of the first male plug element 4221, except that the second male plug element 4222 is arranged on the third surface of the second rectangular parallelepiped body 4422, and The first male plug element 4221 is disposed on the third surface of the first rectangular parallelepiped body 4421 .

The second female plug element 4322 connected to the fourth insert 4122 and the second male plug element 4222 has a structure similar to that of the first female plug element 4321, except that the second female plug element 4322 is arranged on the second rectangular parallelepiped The second surface of the body portion 4422 , and the first female plug element 4321 is disposed on the second surface of the first cuboid-shaped body portion 4421 .

The first male plug element 4221 (or first female plug element 4321) of one first parallel piece 4021 and the first female plug element 4321 (or second male plug element 4221) of another first parallel piece 4021 can realize the second Mechanically and electrically connected between a parallel piece 4021, the third plug-in 4121 of the other first parallel piece 4021 can be connected to the first plug-in 1021 of a packaging unit 101 in the direction perpendicular to the Y-axis; at the same time, a second parallel The second male plug element 4222 (or the second female plug element 4322) of the piece 4022 and the second female plug element 4322 (or the second male plug element 4222) of another second parallel piece 4022 can realize the second parallel piece 4022 Between the mechanical connection and the electrical connection, the fourth plug-in 4122 of the second parallel piece 4022 can be connected to the second plug-in 1022 of a packaging unit 101 in the direction perpendicular to the Y-axis; thereby realizing different packaging units 101 (along the Y-axis The mechanical connection and parallel electrical connection of a plurality of packaged units 101) that are arranged.

The above described in conjunction with FIG. 14 that the third plug-in 4121 of the first parallel piece 4021 of the connection assembly matches the structure of the first plug-in 1021 of FIG. structure matches.

It should be noted that the design of the third plug-in and the fourth plug-in should be adjusted according to the package unit to be matched. For example, if the first plug-in and the second plug-in of the packaging unit adopt the form shown in FIG. 10 , the structures of the third plug-in and the fourth plug-in are similar to those of the second plug-in 2022 and the first plug-in 2021 in FIG. 10 . and so on.

It should also be noted that the first female plug element and the first male plug element of the first parallel piece, and the second female plug element and the second male plug element of the second parallel piece are not affected by the first plug and the second plug element of the packaging unit. Two plug-in structure restrictions, and the first female plug component does not have to be the same structure as the second female plug component, the first male plug component does not have to be the same structure as the second male plug component, as long as the first female plug component is the same as the first male plug The structure of the components is matched, and the structure of the second female plug component is matched with the structure of the second male plug component, that is, the connection of the first parallel component perpendicular to the series direction of the packaging unit and the connection of the second parallel component perpendicular to the series direction of the packaging unit can be realized on the connection.

Referring to FIG. 15 and FIG. 16 , a schematic diagram of another embodiment of the solar cell module of the present invention is shown. The solar cell module also includes:

The sealing strip 501 is located at the edge area of the light-receiving surface of the packaging unit 101, and is used for sealing and waterproofing.

In this embodiment, the sealing strip 501 is in the shape of a closed rectangular frame, disposed on the light-transmitting insulating layer 1012 and exposing the solar cells 1011 to avoid light blocking.

Specifically, the material of the sealing strip 501 may be ethylene-propylene-diene rubber (EPDM). The present invention does not limit the material of the sealing strip 501 . The boundary of the sealing strip 501 can slightly exceed the boundary of the light-transmitting insulating layer of the packaging unit 101, for example, exceeding 1 mm, so that after a plurality of packaging units 101 are connected together, the sealing strips 501 of adjacent packaging units 101 are pressed against each other, thereby realizing Watertight seal.

Correspondingly, the present invention also provides an automobile sunroof, including the solar cell module provided by the present invention.

The solar battery module can be provided with different packaging units and connection components according to the shape of the sunroof of the car.

Since the automobile sunroof of the present invention has a solar cell module, light energy can be converted into electric energy during the use of the automobile, thereby achieving energy-saving effect.

When the solar cell module of the present invention is applied to the sunroof of an automobile, the ratio of the area occupied by the solar cells to the area of the sunroof can be optimized and selected in consideration of the light transmission requirement of the sunroof of the automobile.

Correspondingly, the present invention also provides a method for manufacturing a solar cell module. Referring to FIG. 17 , it shows a schematic flowchart of an embodiment of the method for manufacturing a solar cell module according to the present invention. Please refer to Figure 2 and Figure 3 in conjunction, the method includes the following steps:

Step S1, forming a plurality of packaging units 101; including the following sub-steps:

S11, forming at least one solar cell 1011;

S12 , forming a light-transmitting insulating layer 1012 to surround the at least one solar cell 1011 .

The method further includes a step S2 of electrically and mechanically connecting the plurality of packaging units 101 .

The solar battery module produced by the method of the present invention can flexibly assemble the packaging unit 101 according to the use scene, which improves the application range of the solar battery module.

Specifically, in the step of forming the light-transmitting insulating layer 1012, the first plug-in 1021 and the second plug-in 1022 are integrated, wherein:

The first insert 1021 is located on the first end surface of the packaging unit 101, and is electrically connected to one of the positive leads of the at least one solar cell 1011; and

The second insert 1022 is located on a second end surface opposite to the first end surface, and is electrically connected to the other of the positive lead and negative lead of the at least one solar cell 1011;

Wherein, the structures of the first plug-in 1021 and the second plug-in 1022 match, so that when the first plug-in 1021 of one packaging unit 101 is inserted into the second plug-in 1022 of another packaging unit 101 , mechanical connection and electrical connection are realized.

The method forms the first plug-in 1021 and the second plug-in 1022 integrated in the light-transmitting insulating layer 1012, which can save the space occupied by the connection unit, increase the occupancy rate of the solar cell sheet 101 in the solar cell module 100, and improve the solar cell module. 100 light conversion efficiency.

Although the present invention is disclosed above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so the protection scope of the present invention should be based on the scope defined in the claims.

Claims (18)

1. a solar module, is characterized in that, comprising: multiple encapsulation unit and coupling assembling, and described coupling assembling is for realizing mechanical connection between multiple encapsulation unit and electrical connection, and described encapsulation unit comprises:

At least one solar battery sheet; And

Light-transmitting insulating layer, surrounds at least one solar battery sheet described.

2. solar module as claimed in claim 1, it is characterized in that, described coupling assembling comprises multiple linkage unit, and described multiple linkage unit is integrated in described multiple encapsulation unit respectively, and described linkage unit comprises:

First plug-in unit, is positioned at the first end face of described encapsulation unit, draw with the positive pole of at least one solar battery sheet described and negative pole draw in one be electrically connected; And

Second plug-in unit, is positioned at second end face relative with described first end face, draw with the positive pole of at least one solar battery sheet described and negative pole draw in another be electrically connected,

Wherein, the structure of described first plug-in unit and the second plug-in unit matches, thus when making second plug-in unit of first another encapsulation unit of plug-in unit grafting of an encapsulation unit, realizes mechanical connection and electrical connection.

3. solar module as claimed in claim 2, is characterized in that:

Described first plug-in unit comprises: the conductive pin extended from described first end face and hold the first insulation crust of described conductive pin, wherein said conductive pin is drawn with the positive pole of at least one solar battery sheet described and negative pole draw in one be electrically connected; And

Described second plug-in unit comprises: the hollow conductive post extended to described light-transmitting insulating layer inside from described second end face and the second insulation crust holding described hollow conductive post, wherein said hollow conductive post is drawn with the positive pole of described solar battery sheet and negative pole draw in another be electrically connected

Wherein, the mating shapes of described conductive pin and described hollow conductive post, the mating shapes of described first insulation crust and described second insulation crust, thus make: the conductive pin of the first plug-in unit of an encapsulation unit can insert and the hollow conductive post of the second plug-in unit of another encapsulation unit of electrical contact, and the second insulation crust of the second plug-in unit of the first insulation crust socket another encapsulation unit described of the first plug-in unit of a described encapsulation unit.

4. solar module as claimed in claim 3, is characterized in that,

The outer wall of the conductive pin in described first plug-in unit is provided with protuberance;

The inwall of the hollow conductive post in described second plug-in unit is provided with recess;

Described protuberance and described recess match, when making the first plug-in unit of a described encapsulation unit realize being connected with the second plug-in unit of another encapsulation unit, the conductive pin of the first plug-in unit can insert and the hollow conductive post of the second plug-in unit of another encapsulation unit of electrical contact, and the protuberance on described conductive pin can be positioned at the recess of hollow conductive column wall, and described protuberance contacts with described recess.

5. solar module as claimed in claim 2, is characterized in that,

Described first plug-in unit is stretched from the first end facing epitaxy of described encapsulation unit, comprising: end face, is parallel to described first end face; Lower surface, perpendicular to described end face, extends from described first end face and ends at described end face; Upper surface, tilts towards near the direction of described lower surface from described first end, and ends at described end face; Cantilever, extends from described end face along the direction being parallel to described upper surface, and the end of described cantilever is provided with towards the outstanding stage portion of described upper surface; And first bus, be positioned at described lower surface, draw with the positive pole of described solar battery sheet and negative pole draw in one be electrically connected;

Described second plug-in unit comprises the cavity being positioned at described light-transmitting insulating layer, and described cavity is for receiving described first plug-in unit, and described cavity comprises: be positioned at the opening on described second end face; Lower surface, perpendicular to the second end face; Upper surface, tilts from described second end face to the direction of the lower surface near described second plug-in unit, and angle formed by the upper surface of described cavity and lower surface is equal to or less than angle formed by the upper surface of described first plug-in unit and lower surface; Bead, is positioned at the upper surface of described cavity and is close to described opening, and the lower surface towards described cavity is given prominence to; And second bus, be positioned at the lower surface of described cavity, draw with the positive pole of described solar battery sheet and negative pole draw in another be electrically connected,

Wherein, when the first plug-in unit of an encapsulation unit inserts the cavity of another encapsulation unit, the cantilever of described first plug-in unit stands the power of described bead and the lower surface towards described first plug-in unit bends, when described bead is through the stage portion of described cantilever end, described cantilever resilience also abuts with the upper surface of described cavity, described stage portion and described bead clamping, and described first bus abuts described second bus.

6. solar module as claimed in claim 2, it is characterized in that, described coupling assembling also comprises the first part in parallel and the second part in parallel, and for realizing being connected in parallel between described encapsulation unit, wherein, described first part in parallel comprises:

3rd plug-in unit, matches with the structure of described first plug-in unit, thus when making first plug-in unit of a 3rd plug-in unit grafting encapsulation unit of described first part in parallel, realizes mechanical connection and the electrical connection of described first part in parallel and described encapsulation unit;

First female plug element, is electrically connected with described 3rd plug-in unit; And

First male plug element, is electrically connected with described 3rd plug-in unit and the first female plug element,

Wherein, the structure of described first male plug element and described first female plug element matches, thus when making the first male plug element of first another the first part in parallel of female plug element grafting of first part in parallel, realize the mechanical connection between described first part in parallel and electrical connection, described second part in parallel comprises:

4th plug-in unit, matches with the structure of described second plug-in unit, thus when making second plug-in unit of a 4th plug-in unit grafting encapsulation unit of described second part in parallel, realizes mechanical connection and the electrical connection of described second part in parallel and described encapsulation unit;

Second female plug element, is electrically connected with described 4th plug-in unit; And

Second male plug element, is electrically connected with described 4th plug-in unit and the second female plug element,

Wherein, the structure of described second male plug element and described second female plug element matches, thus when making the second male plug element of second another the second part in parallel of female plug element grafting of second part in parallel, realize the mechanical connection between described second part in parallel and electrical connection.

7. solar module as claimed in claim 6, it is characterized in that, described first part in parallel has the first body of the rectangular shape of printing opacity insulation, described 3rd plug-in unit is positioned on the first surface of described first body, described first female plug element and the first male plug element lay respectively on second and the 3rd vertical with described first surface

Described second part in parallel has the second body of the rectangular shape of printing opacity insulation, described 4th plug-in unit is positioned on the first surface of described second body, and described second female plug element and the second male plug element lay respectively on second and the 3rd vertical with the first surface of described second body.

8. solar module as claimed in claim 7, is characterized in that,

Described first plug-in unit comprises: the conductive pin extended from described first end face and hold the first insulation crust of described conductive pin, wherein said conductive pin is drawn with the positive pole of at least one solar battery sheet described and negative pole draw in one be electrically connected;

Described 3rd plug-in unit comprises: the hollow conductive post extended to described first body inside from the first surface of described first part in parallel, and hold the 3rd insulation crust of described hollow conductive post, the mating shapes of the hollow conductive post of described 3rd plug-in unit and the conductive pin of described first plug-in unit, the mating shapes of described 3rd insulation crust and described first insulation crust, thus make: the conductive pin of described first plug-in unit can insert and the hollow conductive post of the 3rd plug-in unit described in electrical contact, and the 3rd insulation crust of described 3rd plug-in unit of the first insulation crust socket of described first plug-in unit.

9. solar module as claimed in claim 7, is characterized in that,

Described first male plug element comprises the conductive pin extended from the 3rd face of described first body and the insulation crust holding described conductive pin;

Described first female plug element comprises the hollow conductive post extended towards described first body inside from second of described first body and the insulation crust holding described hollow conductive post;

The mating shapes of the conductive pin of described first male plug element and the hollow conductive post of described first female plug element, the mating shapes of the insulation crust of described first male plug element and the insulation crust of described first female plug element, thus make: the conductive pin of the first male plug element of first part in parallel can insert and the hollow conductive post of the first female plug element of another the first part in parallel of electrical contact, and the insulation crust of the first female plug element of the insulation crust of the first male plug element of described first part in parallel socket another the first part in parallel described.

10. solar module as claimed in claim 2, is characterized in that,

When described encapsulation unit comprises multiple solar battery sheet of series connection, described positive pole draws the positive pole of the solar battery sheet of one end of the described series connection of electrical connection, and described negative pole draws the negative pole of the solar battery sheet of the other end of the described series connection of electrical connection;

When described encapsulation unit comprises multiple solar battery sheet in parallel, described positive pole draws the positive pole of the described multiple solar battery sheet of electrical connection, and described negative pole draws the negative pole of the described multiple solar battery sheet of electrical connection.

11. solar modules as claimed in claim 1, it is characterized in that, described encapsulation unit is cuboid, and the length of described encapsulation unit is more than or equal to 66.5mm, and width is more than or equal to 16.5mm, and thickness is more than or equal to 3mm and is less than or equal to 10mm.

12. solar modules as claimed in claim 1, is characterized in that, the material of described light-transmitting insulating layer is resin.

13. solar modules as claimed in claim 12, is characterized in that, described resin is one or more in PMMA, PC, PET, epoxy resin.

14. solar modules as claimed in claim 1, it is characterized in that, described encapsulation unit also comprises: sealing strip, is positioned at the fringe region of described encapsulation unit sensitive surface, for realizing water-tight.

15. solar modules as claimed in claim 1, it is characterized in that, described light-transmitting insulating layer is more than or equal to 1mm at the thickness of described encapsulation unit sensitive surface and is less than or equal to 5mm, be more than or equal to 2mm at the thickness of described encapsulation unit shady face and be less than or equal to 5mm, be more than or equal to 2mm at the thickness of described encapsulation unit side and be less than or equal to 200mm.

16. 1 kinds of vehicle dormer windows, is characterized in that, comprise the solar module as described in claim as arbitrary in claim 1 to 15.

17. 1 kinds of methods making solar module, is characterized in that, comprising:

Form multiple encapsulation unit; And

Make described multiple encapsulation unit electrical connection and mechanical connection;

Wherein, the step forming each described encapsulation unit comprises:

Form at least one solar battery sheet; And

Form light-transmitting insulating layer, surround at least one solar battery sheet described.

18. methods as claimed in claim 17, is characterized in that, integrated first plug-in unit and the second plug-in unit when forming described light-transmitting insulating layer, wherein:

Described first plug-in unit is positioned at the first end face of described encapsulation unit, draw with the positive pole of at least one solar battery sheet described and negative pole draw in one be electrically connected; And

Described second plug-in unit is positioned at second end face relative with described first end face, draw with the positive pole of at least one solar battery sheet described and negative pole draw in another be electrically connected,

Wherein, the structure of described first plug-in unit and the second plug-in unit matches, thus when making second plug-in unit of first another encapsulation unit of plug-in unit grafting of an encapsulation unit, realizes mechanical connection and electrical connection.