G12 battery piece high-power double-glass assembly and photovoltaic power generation device thereof

Abstract

The application discloses a kind of G12 battery piece high-power double-glass assembly, including double-glass battery assembly and frame section bar, frame section bar is provided with cavity, frame section bar includes two short side section bars and two long side section bars, the back of double-glass battery assembly is provided with heat exchange runner, the cavity of two long side section bars is provided with valve block, which is divided into several unit flow channels, unit flow channel and heat exchange runner are combined to form serpentine liquid cooling flow channel.The application also discloses a kind of photovoltaic power generation device.The G12 battery piece high-power double-glass assembly and photovoltaic power generation device of the application are convenient for light irradiation on the back of double-glass battery assembly through light-transmitting heat exchange runner, and cooling through liquid cooling flow channel, thereby improving photovoltaic power generation capacity.Not only that, through the detachable positioning tube connected on frame section bar, it is convenient for the splicing of adjacent double-glass assembly, reduces the burden of workers, improves construction efficiency, and through the detachable sealing plug, it is convenient to control the on-off between liquid cooling flow channels in adjacent double-glass assembly.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic power generation technology, and in particular to a high-power double-glass module with G12 solar cells and its photovoltaic power generation device. Background Technology

[0002] Photovoltaic modules, also known as solar cell modules, are formed by sealing a certain number of individual solar cells in series or parallel to form a photovoltaic module, because the output voltage of a single solar cell is low and the electrodes of an unencapsulated cell are prone to detachment due to environmental influences.

[0003] Since energy loss due to increased component temperature accounts for a significant proportion of power loss in photovoltaic systems, existing technologies, such as the one disclosed in CN216213497U, aim to improve power generation efficiency through cooling. This includes a photovoltaic module comprising a solar panel assembly and a backsheet disposed on the back of the solar panel assembly. The backsheet has liquid-cooled channels for the flow of a cooling medium, and also has inlet and outlet ports respectively connected to the two ends of the liquid-cooled channels. This photovoltaic module uses the cooling medium flowing in the liquid-cooled channels to exchange heat with the solar panel assembly, achieving high heat dissipation efficiency without affecting the solar radiation energy on the front of the photovoltaic module, thus contributing to improved power generation efficiency.

[0004] However, in the aforementioned photovoltaic modules, the backsheet blocks sunlight from reaching the back of the battery pack. Therefore, this type of photovoltaic module is not suitable for double-glass modules (double-glass modules, as the name suggests, are modules that can generate electricity from both sides. When sunlight shines on a double-glass module, some of the light is reflected by the surrounding environment to the back of the module. This light can be absorbed by the battery, thus contributing to the photocurrent and photovoltaic power generation efficiency of the battery). Therefore, the shading of the backsheet hinders the improvement of photovoltaic power generation of double-glass modules. Moreover, in the existing technology, when connecting photovoltaic modules, each photovoltaic module is usually arranged in a rectangular array on the support, and then each photovoltaic module is fixed to the support one by one. This results in low installation efficiency and increases the workload and burden of the operators.

[0005] Therefore, it is necessary to improve the existing double-glass modules and their photovoltaic power generation devices. Summary of the Invention

[0006] The purpose of this invention is to overcome the defects in the prior art and provide a high-power double-glass module with G12 cells and its photovoltaic power generation device that improves photovoltaic power, is easy to install, improves construction efficiency and reduces the burden on workers.

[0007] To address the aforementioned technical problems, this invention provides a high-power double-glass module with G12 solar cells, comprising a double-glass solar module and frame profiles disposed on the four sides of the double-glass solar module and connected end-to-end by corner brackets. The frame profiles have cavities and include two short-side profiles and two long-side profiles. The back of the double-glass solar module has light-transmitting heat exchange channels arranged side-by-side along its length. Valve blocks dividing the cavities of the two long-side profiles into several unit channels are disposed within them. The unit channels and the heat exchange channels combine to form a serpentine flow pattern. The liquid cooling channel is shaped like a triangle; the corner bracket includes two hollow corner brackets, and the two ends of the liquid cooling channel are respectively connected to the cavities of the two short side profiles through the inner cavities of the two hollow corner brackets; the side of the four frame profiles facing away from the double glass battery assembly is the outer side, and the outer side is provided with a positioning tube that communicates with the cavity of the corresponding frame profile. Both ends of the positioning tube are provided with connecting parts, and one connecting part is detachably connected to the frame profile, and the other connecting part is used to connect to the frame profile spliced ​​with the double glass assembly. A sealing plug is detachably connected inside the positioning tube.

[0008] Preferably, in order to form a light-transmitting heat exchange channel, a light-transmitting strip is provided on the back of the double-glass solar cell module, and a notch is provided on the side of each of the two long-side profiles adjacent to the double-glass solar cell module. The two ends of the light-transmitting strip are respectively sealed and connected to the inner wall of the notch of the two long-side profiles, and the heat exchange channel is formed by the light-transmitting strip and the double-glass solar cell module.

[0009] Preferably, in order to ensure the stability of the connection between the light-transmitting strip and the double-glass battery module, the light-transmitting strip is sandwiched between the two long side profiles, and through holes are provided at both ends of the light-transmitting strip, the through holes being connected to the cavities of the long side profiles corresponding to the ends of the light-transmitting strip.

[0010] Preferably, in order to enhance the intensity of sunlight illuminating the back of the double-glass solar cell module and improve the output voltage under low light conditions, the light-transmitting strip is a light-concentrating strip, and the double-glass solar cell module is located on the light-concentrating side of the light-transmitting strip.

[0011] Preferably, in order to facilitate the quick connection between the positioning tube and the frame profile, the connecting part is a snap-fit ​​part, which snaps into the frame profile.

[0012] Preferably, in order to achieve the snap-fit ​​between the positioning tube and the frame profile, an installation tube is fixed on the frame profile, and a snap-fit ​​protrusion and a positioning protrusion are provided on the circumferential inner wall of the installation tube. The snap-fit ​​part is a snap-fit ​​groove that snaps into the positioning protrusion, and one end of the positioning tube abuts against the positioning protrusion.

[0013] Preferably, in order to facilitate the snap-fit ​​connection between the positioning tube and the frame profile, the snap-fit ​​groove is an annular groove with the center line of the positioning tube.

[0014] Preferably, in order to facilitate the splicing and connection of adjacent photovoltaic modules through the positioning tube, the outer sides of the adjacent frame profiles of the two modules are in contact, ensuring the compactness of the photovoltaic power generation device structure, so that more double-glass modules can be installed on the fixed-size laying surface, further increasing the photovoltaic power generation, the mounting tube is located between the outer side and the double-glass battery module.

[0015] Preferably, in order to ensure the correct splicing of adjacent photovoltaic modules and avoid splicing errors, each of the four frame profiles is provided with a mark that corresponds to but is different from the positioning tube.

[0016] To solve the above-mentioned technical problems, the present invention also provides a photovoltaic power generation device, including a high-power double-glass module with G12 cells distributed in a rectangular array according to any of the above-mentioned technical solutions, wherein two adjacent high-power double-glass modules with G12 cells are detachably connected through the positioning tube, and the liquid cooling channels of the high-power double-glass modules with G12 cells are connected in sequence.

[0017] In summary, compared with existing technologies, the G12 high-power double-glass module and its photovoltaic power generation device of this invention facilitates light irradiation onto the back of the double-glass module through a light-transmitting heat exchange channel and cools it through a liquid cooling channel, thereby increasing power generation. Furthermore, the detachable positioning tubes on the frame profile facilitate the splicing of adjacent double-glass modules, reducing the workload of workers and improving construction efficiency. The detachable sealing plugs also facilitate the control of the flow between the liquid cooling channels in adjacent double-glass modules. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the double-glass module of the present invention;

[0019] Figure 2 This is a structural schematic diagram from another perspective of Embodiment 1 of the double-glass module of the present invention;

[0020] Figure 3 yes Figure 1 An explosion diagram;

[0021] Figure 4 yes Figure 3 Enlarged view of part A;

[0022] Figure 5 yes Figure 1 Side view;

[0023] Figure 6 yes Figure 5 AA-direction cross section;

[0024] Figure 7 yes Figure 6 Enlarged view of part B;

[0025] Figure 8 This is a schematic diagram of the connection structure of the mounting tube, positioning tube, and sealing plug in Embodiment 1 of the double-glass module of the present invention;

[0026] Figure 9 yes Figure 8 An explosion diagram;

[0027] Figure 10 yes Figure 8 An illustration of the explosion from another perspective;

[0028] Figure 11 This is a schematic diagram of the long-side profile of Embodiment 1 of the double-glass module of the present invention;

[0029] Figure 12 yes Figure 11 The front view;

[0030] Figure 13 This is a structural schematic diagram of the long side profile of Embodiment 1 of the double-glass module of the present invention from another perspective;

[0031] Figure 14 This is a schematic diagram of the structure of the double-glass battery module, Embodiment 1 of the present invention;

[0032] Figure 15 This is a schematic diagram of the structure of a photovoltaic power generation device using the double-glass module of Embodiment 1 of the present invention;

[0033] Figure 16 yes Figure 15 An explosion diagram;

[0034] Figure 17 yes Figure 15 The front view;

[0035] Figure 18 yes Figure 17 BB-direction cross-section;

[0036] Figure 19 This is a structural schematic diagram of a photovoltaic power generation device using the double-glass module embodiment 1 of the present invention from another perspective;

[0037] Figure 20 This is a schematic diagram of the structure of Embodiment 2 of the double-glass module of the present invention;

[0038] In the diagram: 100. Double-glass solar cell module, 101. Double-glass solar cell layer, 102. Encapsulant layer, 103. Glass layer, 200. Frame profile, 201. Outer side, 202. Mounting port, 203. Cavity, 204. Assembly groove, 300. Short side profile, 400. Long side profile, 401. Notch, 500. Hollow corner bracket, 501. Inner cavity, 600. Solid corner bracket, 700. Positioning tube, 701. Connecting part, 800. Sealing plug, 900. Light-transmitting strip, 901. Through hole, 110. Mounting tube, 111. Snap-fit ​​protrusion, 112. Positioning protrusion, 120. Mark, 130. Valve block. Detailed Implementation

[0039] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0040] Example 1

[0041] like Figures 1-14 As shown, the G12 solar cell high-power double-glass module of Embodiment 1 includes a double-glass solar module 100, the specific structure of which is as follows: Figure 14 As shown, the system includes a double-glass solar cell layer 101. Both sides of the double-glass solar cell layer 101 are provided with an encapsulant layer 102. A glass layer 103 is provided on the side of the encapsulant layer 102 facing away from the double-glass solar cell layer 101. The double-glass solar cell layer 101, the two encapsulant layers 102 and the two glass layers 103 are laminated by a laminator to form an integrally connected double-glass solar cell module 100. The double-glass solar cell module 100 has a rectangular plate structure, wherein the double-glass solar cell layer 101 is composed of G12 solar cells arranged in a rectangular array.

[0042] The double-glass solar cell module 100 has frame profiles 200 on its four sides. Adjacent frame profiles 200 are connected by corner brackets, so that the four frame profiles 200 are connected end to end in sequence to form a closed frame structure that is sealed to the outer edge of the circumference and the two square boundaries of the double-glass solar cell module 100.

[0043] The four frame profiles 200 consist of two short-side profiles 300 and two long-side profiles 400. The length direction of the short-side profiles 300 is consistent with the width direction of the double-glass solar module 100, and the length direction of the long-side profiles 400 is consistent with the length direction of the double-glass solar module 100. The long-side profiles 400 and the short-side profiles 300 have the same cross-section, and their cross-sectional structure is as follows: Figure 12As shown, each of the frame profiles 200 is provided with an assembly groove 204 and a cavity 203. The bottom of the assembly groove 204 and its two inner sidewalls are respectively sealed to one side and the front of the double-glass battery module 100. The two ends of the corner bracket are respectively inserted into the cavities 203 of the adjacent short side profile 300 and the long side profile 400, and the outer circumferential edge of the corner bracket is sealed to the inner circumferential wall of the cavity 203 of the frame profile 200. Figure 3 and Figure 6 As shown.

[0044] like Figures 2-4 and Figure 6 As shown, the back of the double-glass solar cell module 100 has three side-by-side light-transmitting strips 900. Each light-transmitting strip 900 is a glass strip, and its length is aligned with the length of the shorter side profile 300. The two ends of the light-transmitting strips 900 are flush with the sides of the double-glass solar cell module 100. The light-transmitting strips 900 and the glass layer 103 on the back of the double-glass solar cell module 100 enclose each other to form a heat exchange channel. Valve blocks 130 are installed in the cavities 203 of the two longer side profiles 400. The outer circumferential edge of the valve block 130 is sealed and fixedly connected to the inner circumferential wall of the cavity 203, thereby dividing the cavity 203 of the longer side profile 400 into two unit channels. Figure 6 As shown, the four unit channels and three heat exchange channels combine to form a serpentine liquid cooling channel.

[0045] The four corner brackets consist of two hollow corner brackets 500 and two solid corner brackets 600. The two hollow corner brackets 500 are respectively set at opposite diagonal positions of the double-glass solar cell module 100, such as... Figure 4 and Figure 6 As shown, the hollow corner bracket 500 has an L-shaped inner cavity 501, with both ends of the inner cavity 501 extending to both ends of the hollow corner bracket 500, so that the adjacent end positions of the cavities 203 of the short side profile 300 and the long side profile 400 connected by the hollow corner bracket 500 can be connected through the inner cavity 501 of the hollow corner bracket 500. In this way, the two ends of the liquid cooling channel are connected to the cavities 203 of the two short side profiles 300 through the inner cavities 501 of the two hollow corner brackets 500 respectively; while the cavities 203 of the short side profile 300 and the long side profile 400 connected by the solid corner bracket 600 are isolated by the solid corner bracket 600.

[0046] The side of the four frame profiles 200 facing away from the double-glass solar cell assembly 100 is the outer side 201. A positioning tube 700 is provided on the outer side 201. One end of the positioning tube 700 extends into the cavity 203 of its corresponding frame profile 200 and communicates with the cavity 203 of the frame profile 200. A connecting part 701 is provided at this end. The positioning tube 700 is detachably connected to the frame profile 200 through the connecting part 701. The other end of the positioning tube 700 is provided on the side of the outer side 201 of the frame profile 200 facing away from the double-glass solar cell assembly 100. A connecting part 701 is also provided at this end. The connecting part 701 here is used to connect to the frame profile 200 of another double-glass assembly. In this way, the two connecting parts 701 on the positioning tube 700 realize the detachable connection between the frame profiles 200 of the two double-glass assemblies, thereby facilitating the connection of the two double-glass assemblies. A sealing plug 800 is also provided on the inner side of the positioning tube 700 and is detachably connected to it.

[0047] like Figure 3 , Figure 4 and Figure 11 As shown, each of the two long side profiles 400 has three notches 401 on the side adjacent to the double glass battery module 100. The three notches 401 correspond one-to-one with three light-transmitting strips 900. The ends of the light-transmitting strips 900 are sealed to the inner wall of the notches 401 of the long side profiles 400. The light-transmitting strips 900 are sandwiched between the two long side profiles 400, that is, the two ends of the light-transmitting strips 900 abut against the two long side profiles 400 respectively. Both ends of the light-transmitting strips 900 are provided with through holes 901. The two ends of the heat exchange channel are connected to the cavities 203 of the two long side profiles 400 through the through holes 901 at both ends of the light-transmitting strips 900 respectively.

[0048] During the assembly of the aforementioned double-glass module, a valve block 130 is pre-fixed within the cavity 203 of the long side profile 400. The valve block 130 can be fixed within the cavity 203 by welding or other methods, ensuring a sealed connection between the outer circumferential edge of the valve block 130 and the inner circumferential wall of the cavity 203. This allows the valve block 130 to divide the cavity 203 of the long side profile 400 into two unit flow channels. Three notches 401 are then cut into the long side profile 400. Subsequently, the four frame profiles 200 are sequentially connected end-to-end using corner brackets. Simultaneously, the assembly grooves 204 of the four frame profiles 200 are sealed to the four sides of the double-glass battery module 100. Three light-transmitting strips 900 with through holes 901 at their ends are arranged side-by-side, sandwiched between the two long side profiles 400, and the light-transmitting strips 900 and the double-glass battery module 100 enclose a cooling flow channel. After assembly, the following is formed: Figure 1 and Figure 2 The double-glass module shown here has four unit channels and three heat exchange channels combined to form a serpentine liquid cooling channel in its internal structure.

[0049] During photovoltaic power generation, sunlight can shine onto the back of the double-glass solar module 100 through the light-transmitting strip 900 and the cooling channel, avoiding obstruction of the light from the back and thus increasing the photovoltaic power generation. In addition, coolant (usually water) can be introduced into the liquid cooling channel to absorb the heat of the double-glass solar module 100 during power generation, thereby reducing the temperature of the double-glass solar module 100 and further increasing its power generation. The light-transmitting strip 900 is connected by clamping it between two long side profiles 400, so that both ends of the light-transmitting strip 900 abut against the two long side profiles 400 respectively, preventing the light-transmitting strip 900 from shifting along its length and causing coolant leakage.

[0050] Furthermore, positioning tubes 700 are detachably connected to the outer surfaces 201 of the four frame profiles 200. Connecting parts 701 are provided at both ends of the positioning tubes 700, with the two connecting parts 701 located inside and outside the cavity 203, respectively. A sealing plug 800 is detachably provided inside the positioning tubes 700. This facilitates the splicing connection between adjacent double-glass components, and the connection between the serpentine liquid cooling channels in adjacent double-glass components can also be achieved by controlling the sealing plug 800.

[0051] In this embodiment, a positioning tube 700 is provided on the short side profile 300, located in the middle position of the short side profile 300, while two positioning tubes 700 are provided on the long side profile 400. The two positioning tubes 700 are symmetrical about the middle position of the long side profile 400, and the two positioning tubes 700 are respectively connected to the unit flow channels on both sides of the valve block 130 inside the long side profile 400.

[0052] When connecting two double-glass modules of this embodiment and distributing them along their length, the short side profiles 300 of the two double-glass modules will be adjacent. Before connecting, the positioning tube 700 on the short side profile 300 of one of the double-glass modules is removed (or, when assembling the double-glass modules, it is not necessary to install the positioning tube 700 on the short side profile 300 of one of the double-glass modules, but to install the positioning tube 700 on the short side profile 300 of the other double-glass module). Then, the short side profiles 300 of the two double-glass modules are brought together, so that the short side profiles 300 of the two double-glass modules are spliced ​​and connected by the connecting part 701 on the positioning tube 700. If it is necessary to connect the liquid cooling channels of the two double-glass modules, before bringing the short side profiles 300 of the two double-glass modules together, the sealing plug 800 in the positioning tube 700 that has not been removed is removed, so that the two ends of the positioning tube 700 extend into the cavity 203 of the short side profiles 300 of the two double-glass modules respectively.

[0053] Similarly, when two double-glass modules need to be connected and distributed along their width, the long side profiles 400 of the two double-glass modules will be adjacent. Since there are four positioning tubes 700 between the two long side profiles 400, two positioning tubes 700 whose positions do not overlap after splicing should be removed before splicing (or, during the assembly of the double-glass modules, two positioning tubes 700 should be installed in a total of four installation positions on the two long side profiles 400 at the splicing connection position). Then, the two double-glass modules should be placed close together. Together, and arranged along their width, if it is necessary to connect the serpentine liquid cooling channels of the two components, then in one of the two retained positioning tubes 700, the sealing plug 800 is removed, so that the positioning tube 700 with the sealing plug 800 removed can be connected to the cavity 203 of the adjacent long side profile 400 of the two double glass components. At this time, the serpentine liquid cooling channels in the two double glass components are connected (if the sealing plug 800 is not removed, the liquid cooling channels of the two double glass components are isolated by the sealing plug 800).

[0054] After splicing and connecting two double-glass modules and connecting their liquid cooling channels, remove one sealing plug 800 from each of the two double-glass modules. At this time, the two connected liquid cooling channels have inlet and outlet ports that are connected to the outside. The inlet port can be used to connect a hydraulic pump. The input end of the hydraulic pump is connected to the liquid cooling tank, and the outlet port is connected to the collection tank or connected to the liquid cooling tank to form a liquid cooling circuit. After the hydraulic pump is started, it draws coolant from the liquid cooling tank. The coolant passes through the liquid cooling channels of the two double-glass modules through the inlet port and is discharged from the outlet port, thereby cooling the double-glass solar cell module 100 and improving the efficiency of photovoltaic power generation.

[0055] Therefore, the detachable positioning tubes 700 on the frame profile 200 facilitate the assembly of double-glass modules, connecting adjacent double-glass modules into a single unit. This avoids the need to install and fix each double-glass module individually on the bracket or building during photovoltaic installation. Instead, the double-glass modules are connected sequentially via the positioning tubes 700 to form a single unit. Only a subset of double-glass modules need to be fixed to complete the entire photovoltaic installation. This convenient connection and ease of construction reduce the workload of installers and significantly improve construction efficiency. Furthermore, through the... Disassembling the connecting sealing plug 800 facilitates the control of the flow between the cavities 203 of the frame profiles 200 at both ends of the positioning tube 700. This allows the serpentine liquid cooling channels in each of the installed double-glass modules to be connected sequentially according to the arrangement of the double-glass modules. Then, one sealing plug 800 is removed from each of the two double-glass modules. The two positioning tubes 700 with the sealing plugs 800 removed can serve as the inlet and outlet of the coolant for the entire photovoltaic power generation device. This allows the coolant to pass sequentially through the back of each double-glass module, driving the heat generated by the double-glass cell module 100, thereby increasing the photovoltaic power generation.

[0056] It should be noted that in this embodiment, the number of light-transmitting strips 900 in the double-glass module is not limited to three. Moreover, the number of valve blocks 130 and the position of hollow corner brackets 500 will change accordingly depending on the number of light-transmitting strips 900. For example, when there are four light-transmitting strips 900, there are two valve blocks 130 in the cavity 203 of the long side profile 400, which divides the cavity 203 of the long side profile 400 into three unit channels. At this time, the hollow corner brackets 500 are distributed at both ends of the same side of the double-glass battery module 100, rather than at the diagonal position of the double-glass battery module 100. The light-transmitting strips 900 can also be made of other transparent materials, so that the light-transmitting strips 900 and the double-glass battery module 100 enclose a light-transmitting heat exchange channel, and are not limited to glass materials.

[0057] like Figures 2-4 As shown, the light-transmitting strip 900 is a light-concentrating strip, and the double-glass solar cell module 100 is located on the light-concentrating side of the light-transmitting strip 900. Specifically, the cross-section of the light-transmitting strip 900 is semi-circular. With the above design, the sunlight illuminating the outer surface of the light-transmitting strip 900 has its illumination path changed by the light-transmitting strip 900, so that the light from the light-transmitting strip 900 is concentrated on the double-glass solar cell module 100, thereby increasing the illumination intensity and enhancing the voltage output of the double-glass solar cell module 100 under dim, low-light conditions.

[0058] like Figures 7-10 As shown, the outer circumferential edge of the sealing plug 800 is threadedly connected to the inner circumferential wall of the positioning tube 700, and the sealing plug 800 is housed within the positioning tube 700; the connecting part 701 is a snap-fit ​​part, specifically, the connecting part 701 is a snap-fit ​​groove provided on the outer circumferential edge of the positioning tube 700, the snap-fit ​​groove is an annular groove coaxial with the positioning tube 700, an installation port 202 is provided on the outer side 201 of the frame profile 200, an installation tube 110 is provided at the installation port 202, and the outer circumferential edge of the installation tube 110 is sealed and fixedly connected to the inner circumferential wall of the installation port 202, and Furthermore, the mounting tube 110 is provided with a positioning protrusion 112 and a snap-fit ​​protrusion 111. Both the positioning protrusion 112 and the snap-fit ​​protrusion 111 are annular structures with the same axis as the mounting tube 110. The positioning protrusion 112 is located on the side of the snap-fit ​​protrusion 111 adjacent to the double glass battery assembly 100. One end of the positioning tube 700 connected to the frame profile 200 abuts against the positioning protrusion 112. The snap-fit ​​groove adjacent to this end position snaps into the snap-fit ​​protrusion 111. The circumferential outer edge of the positioning tube 700 is sealed and fitted to the circumferential inner wall of the mounting tube 110.

[0059] With the above structure, the sealing plug 800 and the positioning tube 700 are connected by threads, which facilitates quick connection and disassembly. The mounting tube 110 can be pre-fixed to the inside of the mounting port 202 by welding. After the connecting part 701 with the annular snap-fit ​​groove is set near both ends of the outer edge of the positioning tube 700, it is convenient to directly insert either end of the positioning tube 700 into the mounting tube 110. The outer edge of the positioning tube 700 and the inner wall of the mounting tube 110 are sealed and fitted together to prevent coolant leakage due to gaps between them. Moreover, when the positioning tube 700 abuts against the positioning protrusion 112 on the inner wall of the mounting tube 110, the snap-fit ​​protrusion 111 on the mounting tube 110 snaps into the connecting part 701 with the snap-fit ​​groove on the positioning tube 700, thereby realizing the connection between the mounting tube 110 and the positioning tube 700, and thus fixing the positioning tube 700 to one of the frame profiles 200 of the double glass module.

[0060] When two double-glass modules need to be spliced, identify the frame profiles 200 of the two double-glass modules that are connected and have opposite outer surfaces 201. Then, select one of the frame profiles 200 to install the positioning tube 700, and leave the other without the positioning tube 700. Align the two frame profiles 200 (i.e., keep the mounting ports 202 on the two frame profiles 200 facing each other) and place them together. Finally, the two snap-fit ​​grooves 701 on the positioning tube 700 engage with the snap-fit ​​protrusions 111 in the mounting tubes 110 on the two frame profiles 200, thereby completing the quick splicing between the two double-glass modules. The snap-fit ​​groove adopts an annular groove structure design. When connecting the positioning tube 700 and the mounting tube 110, it is only necessary to keep their axis lines aligned and then move them closer to each other along their axis lines to fix the positioning tube 700 inside the mounting tube 110.

[0061] As a further improvement, the mounting tube 110 is located between the outer side 201 and the double-glass solar module 100. With the above design, without the positioning tube 700, the outer side 201 of the four frame profiles 200 of the double-glass module is smooth and without protrusions. Thus, when adjacent double-glass modules are spliced ​​together, the outer side 201 of the adjacent frame profiles 200 of the two double-glass modules fit together, that is, the distance between the two double-glass modules is shortened. This makes the structure of the photovoltaic power generation device formed by the rectangular array distribution of the double-glass modules more compact. In this way, with a fixed installation area, it is convenient to lay more double-glass modules on the installation surface, thereby increasing the photovoltaic power generation.

[0062] like Figures 15-19As shown, the present invention also discloses a photovoltaic power generation device, including a double-glass module distributed in a rectangular array. The double-glass module is a high-power double-glass module with G12 cells as described in the above embodiment. Two adjacent high-power double-glass modules with G12 cells are detachably connected by a positioning tube 700, and the liquid cooling channels of the high-power double-glass modules with G12 cells are connected in sequence.

[0063] Specifically, the photovoltaic power generation device mentioned above contains six double-glass modules, arranged in two rows and three columns. In the actual assembly process of the photovoltaic power generation device, the number of G12 high-power double-glass modules, the number of rows and columns can also be adjusted to other quantities.

[0064] When assembling the aforementioned photovoltaic power generation device, when connecting two adjacent G12 cell high-power double-glass modules, the adjacent frame profiles 200 of the two G12 cell high-power double-glass modules are identified, and a positioning tube 700 is installed on one of the frame profiles 200. One of the two connecting parts 701 on the positioning tube 700 is inserted into the mounting tube 110 of the frame profile 200 and cooperates with the snap-fit ​​protrusion 111 inside the mounting tube 110, while the other is located on the outer side 201 of the frame profile 200, facing away from the corresponding double-glass cell module 100, so that it is exposed. The exposed connecting part 701 facilitates connection with the frame profile 200 of the double-glass module that does not have the positioning tube 700 installed, thus realizing the convenient splicing connection of the two double-glass modules, reducing the assembly burden of workers, and improving installation efficiency.

[0065] To ensure that the serpentine liquid cooling channels within the double-glass modules are sequentially connected while simultaneously connecting adjacent G12 cell high-power double-glass modules, Figure 18For example, in the row direction, remove the sealing plug 800 inside the positioning tube 700 between two adjacent G12 cell high-power double-glass modules and the sealing plug 800 of the first (top position in the figure) positioning tube 700, while retaining the sealing plug 800 of the last (bottom position in the figure) positioning tube 700. When splicing two rows of G12 cell high-power double-glass modules, remove the sealing plug 800 inside the bottommost side positioning tube 700, while retaining the sealing plug 800 inside the remaining positioning tubes 700. Ultimately, in the resulting photovoltaic power generation device, the top two positioning tubes 700 have no sealing plug 800, and the right and left positioning tubes 700 can be used as liquid inlets and outlets respectively. After the coolant enters, it enters the liquid cooling channel of the top double-glass module in the row direction on the right through the liquid inlet and flows "downward" (downward in the figure, but in actual application). In this configuration, due to the installation position of the photovoltaic modules, the G12 cell high-power double-glass modules in the row direction are located at the same height. When the coolant flows through the liquid-cooling channels of the double-glass modules in the row direction, the height position remains unchanged. Therefore, the "downward" direction here only refers to the downward direction shown in the diagram. The coolant flows sequentially into the liquid-cooling channels of the bottom double-glass modules, and then flows from the positioning tube 700 into the G12 cell high-power double-glass modules in the other row, and flows "upward" (again, "upward" only refers to the upward direction shown in the diagram), sequentially passing through the liquid-cooling channels of the double-glass modules in that row, and finally flowing out from the top outlet. In this way, the coolant sequentially passes through the liquid-cooling channels of each G12 cell high-power double-glass module, carrying away the heat from the double-glass modules 100 in the G12 cell high-power double-glass modules, thereby increasing the photovoltaic power generation. For the specific flow direction of the coolant, please refer to... Figure 16 The arrow direction is shown.

[0066] Example 2

[0067] like Figure 20 As shown, the G12 battery cell high-power double-glass module of Embodiment 2 is based on Embodiment 1, except that the four frame profiles 200 are provided with markings 120 that correspond to but are different from the positioning tubes 700.

[0068] Specifically, the top surfaces of the two short side profiles 300 are marked with the numbers "1" and "2" respectively. Among the other two long side profiles 400, the long side profile 400 located at the lower position in the figure is marked with the numbers "3" and "4" on its top surface, and the other long side profile 400 is marked with the numbers "5" and "6" on its top surface. The six marks 120 correspond to the six positioning tubes 700 on the four side profiles 200.

[0069] Because the positions of the valve blocks 130 differ within the cavities 203 of the two long-side profiles 400, the above structure facilitates the splicing of the four frame profiles 200 in a uniform manner. When connecting the four frame profiles 200, ensure that the markings 120 for the numbers "1", "3", and "6" are adjacent, and that the markings 120 for the numbers "2" are adjacent to the markings for the numbers "4" and "5". This prevents connection errors that could prevent the heat exchange channel from combining with the unit flow channels of the long-side profile 400 cavity 203 to form a serpentine heat exchange channel. Furthermore, this method facilitates the splicing of double-glass modules in a uniform manner. For example, when connecting two double-glass modules, according to… Figure 18 As shown, the placement direction and position of two adjacent double-glass modules should be consistent. Therefore, when two double-glass modules are connected along their length, the two short side profiles 300 that are in contact should be marked with the numbers "1" and "2" respectively 120. When two double-glass modules are connected along their width, one of the two long side profiles 400 that are in contact should be marked with the numbers "3" and "4" 120, and the other should be marked with the numbers "5" and "6" 120. This ensures that the double-glass modules are spliced ​​in an orderly manner, which is conducive to the sequential connection of the heat exchange channels between each double-glass module and avoids splicing errors.

[0070] Of course, the mark 120 can also be other shapes, as long as the shapes of the six marks 120 are different so as to distinguish the positions corresponding to the four frame profiles 200 and the six positioning tubes 700.

[0071] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A high-power double-glass module with G12 solar cells, comprising a double-glass solar module (100) and frame profiles (200) disposed on the four sides of the double-glass solar module (100) and connected end-to-end by corner brackets, wherein the frame profiles (200) are provided with cavities (203), and the frame profiles (200) include two short-side profiles (300) and two long-side profiles (400), characterized in that: The back of the double-glass battery module (100) is provided with heat exchange channels that are arranged side by side along its length and are transparent to light. The cavities (203) of the two long side profiles (400) are provided with valve blocks (130) that divide them into several unit channels. The unit channels and the heat exchange channels are combined to form a serpentine liquid cooling channel. The corner bracket includes two hollow corner brackets (500). The two ends of the liquid cooling channel are respectively connected to the cavities (203) of the two short side profiles (300) through the inner cavities (501) of the two hollow corner brackets (500). The side of the four frame profiles (200) facing away from the double glass battery assembly (100) is the outer side surface (201). The outer side surface (201) is provided with a positioning tube (700) that communicates with the cavity (203) of the corresponding frame profile (200). Both ends of the positioning tube (700) are provided with connecting parts (701). One of the connecting parts (701) is detachably connected to the frame profile (200), and the other connecting part (701) is used to connect to the frame profile (200) spliced ​​with the double glass assembly. A sealing plug (800) is detachably connected inside the positioning tube (700). The back of the double-glass solar cell module (100) is provided with a light-transmitting strip (900). Each of the two long-sided profiles (400) adjacent to the double-glass solar cell module (100) has a notch (401). The two ends of the light-transmitting strip (900) are respectively sealed to the inner walls of the notches (401) of the two long-sided profiles (400). The heat exchange channel is formed by the light-transmitting strip (900) and the double-glass solar cell module (100). The light-transmitting strip (900) is a light-concentrating strip, and the double-glass battery module (100) is located on the light-concentrating side of the light-transmitting strip (900); The connecting part (701) is a snap-fit ​​part, which snaps into the frame profile (200).

2. The high-power double-glass module with G12 solar cells according to claim 1, characterized in that: The light-transmitting strip (900) is sandwiched between the two long side profiles (400). The two ends of the light-transmitting strip (900) are provided with through holes (901), and the through holes (901) are connected to the cavities (203) of the long side profiles (400) corresponding to the ends of the light-transmitting strip (900).

3. The high-power double-glass module with G12 solar cells according to claim 1, characterized in that: An mounting tube (110) is fixed on the frame profile (200). The mounting tube (110) has a snap-fit ​​protrusion (111) and a positioning protrusion (112) on its circumferential inner wall. The snap-fit ​​part is a snap-fit ​​groove that engages with the positioning protrusion (112). One end of the positioning tube (700) abuts against the positioning protrusion (112).

4. The high-power double-glass module with G12 solar cells according to claim 3, characterized in that: The snap-fit ​​groove is an annular groove with the same center line as the positioning tube (700).

5. The high-power double-glass module with G12 solar cells according to claim 3, characterized in that: The mounting tube (110) is located between the outer side (201) and the double-glass battery assembly (100).

6. The high-power double-glass module with G12 solar cells according to claim 1, characterized in that: Each of the four frame profiles (200) is provided with a mark (120) that corresponds to but is different from the positioning tube (700).

7. A photovoltaic power generation device, characterized in that: The high-power double-glass module of G12 solar cells as described in any one of claims 1-6 includes a rectangular array distribution, wherein two adjacent high-power double-glass modules of G12 solar cells are detachably connected through the positioning tube (700), and the liquid cooling channels of the double-glass modules are connected in sequence.

Images