A new solar module packaging structure

Abstract

The present invention discloses a novel solar module packaging structure, which relates to the technical field of solar module packaging, and comprises: an upper packaging plate, which is made of high-transmittance glass; a lower packaging plate, which is fixed to the bottom of the upper packaging plate by a packaging side plate; and the upper packaging plate, the lower packaging plate and the packaging side plate constitute an internal packaging mechanism; a triangular bracket, which is configured as an array and arranged closely to form an installation space between the triangular bracket and the upper packaging plate and the packaging side plate; and a accommodating space is formed between the triangular bracket and the lower packaging plate and the packaging side plate; wherein a battery cell is installed in the installation space; and an external packaging mechanism, which is packaged outside the internal packaging mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of solar module packaging, and in particular to a novel solar module packaging structure. Background Art

[0002] The packaging of solar modules is a more important step in the entire production of solar cell modules. The quality of the packaging process directly determines the quality of the module, including its service life and ability to resist critical strikes, especially the attenuation rate. The existing packaging structure often only includes upper and lower packaging plates and battery cells, which is relatively simple. On the one hand, it cannot cope with the more complex outdoor environment. On the other hand, the layout of the battery cells is mainly flat, which cannot guarantee the overall power generation efficiency while increasing the number of packaged battery cells. Summary of the invention

[0003] The present invention aims to solve the above technical problems and provide a novel solar module packaging structure, which can provide better protection for the solar cells and ensure the overall power generation efficiency while increasing the number of packaged solar cells.

[0004] The technical solution of the present invention is:

[0005] A novel solar module packaging structure is special in that it includes an upper packaging plate, a lower packaging plate and a packaging side plate, wherein the upper packaging plate, the lower packaging plate and the packaging side plate form an inner packaging mechanism, wherein triangular brackets are installed in the inner packaging mechanism, wherein the triangular brackets are arranged in an array and are closely attached, wherein an installation space is formed between the triangular brackets and the upper packaging plate and the packaging side plate, wherein an accommodating space is formed between the triangular brackets and the lower packaging plate and the packaging side plate, wherein solar cells are installed in the installation space, and an outer packaging mechanism is installed outside the inner packaging mechanism.

[0006] Furthermore, heat transfer liquid and heat dissipation pipes are installed in the accommodating space, and multiple heat dissipation pipes are interconnected to form a heat dissipation pipe string. A heat sink is installed on the lower end surface of the lower packaging plate, and the heat dissipation pipe string passes through the lower packaging plate and is connected to the heat sink.

[0007] Furthermore, a sealing gasket is provided between the triangular bracket and the lower packaging plate.

[0008] Furthermore, the triangular bracket includes an inverted V-shaped frame body, and two outer side surfaces of the frame body are provided with grooves for placing battery cells.

[0009] Furthermore, the upper packaging plate is provided with a plurality of groups of through grooves corresponding to the installation space, each group of through grooves is a plurality of through grooves corresponding to the battery cells in the installation space, and a concave lens is embedded in each of the through grooves.

[0010] Furthermore, a horizontal supporting portion is formed on the top of the frame, and a connecting portion corresponding to the supporting portion is formed between adjacent through slots.

[0011] Furthermore, the external packaging mechanism includes an external packaging side plate, which is fixed to the side of the internal packaging mechanism; an external packaging bottom plate, which is fixed to the bottom of the external packaging side plate and is located at the bottom of the internal packaging mechanism; a moving mechanism, which is arranged on the external packaging side plate and can move along the length direction of the battery cell; and a cleaning mechanism, which is arranged on the moving mechanism.

[0012] Furthermore, the moving mechanism includes a supporting wheel, which is movably supported vertically in a groove on one side of the outer packaging side panel. The supporting wheel is provided with a walking wheel which is horizontally placed and in contact with the groove, and the walking wheel has power. The walking wheel is connected to the cleaning mechanism through a connecting arm above.

[0013] Furthermore, the cleaning mechanism is configured as two horizontally connected ones, each including a track plate, a track fixed on the track plate, and a plurality of sliders arranged on the track. The plurality of sliders are connected by an X-shaped connecting rod mechanism. The connecting rod mechanism includes two cross-hinged rod bodies, and the cross-hinged part thereof is hinged to the slider. Two adjacent connecting rod mechanisms are hingedly arranged. The connecting rod mechanism located in the middle is hinged to the output end of the telescopic rod. The telescopic rod is arranged on the track. A cleaning head is provided at the end of the slider away from the track. A telescopic bag is provided at the connection between the cleaning head and the slider. The telescopic bag includes a plurality of capsules connected in sequence that can move up and down and telescope. The capsules are filled with expansion fluid. The expansion fluid has a certain positive thermal expansion coefficient. Each of the cleaning heads corresponds to each group of through grooves.

[0014] Furthermore, the vertical portion of the connecting arm is divided into two parts, and the two parts are connected by a micro-oscillator.

[0015] The beneficial effects of the present invention are:

[0016] The inner packaging mechanism and the outer packaging mechanism are constructed, wherein the inner packaging mechanism is arranged inside the outer packaging mechanism, and the inner packaging mechanism and the outer packaging mechanism cooperate with each other to provide better protection for the battery cell.

[0017] In addition, the internal packaging mechanism can ensure the overall power generation efficiency while increasing the number of battery cells packaged, while the external packaging mechanism can provide certain protection for the internal packaging mechanism and perform regular cleaning of the upper packaging plate, thereby ensuring the power generation efficiency while extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 for Figure 1 Structural schematic diagram of the inner packaging mechanism;

[0020] Figure 3 for Figure 2 Installation structure diagram of the middle triangle bracket;

[0021] Figure 4 It is a structural diagram of the packaging mechanism of the inner and outer parts of Tu 1;

[0022] Figure 5 is a schematic diagram of a light path of the present invention;

[0023] In the figure: 1. upper packaging plate; 2. lower packaging plate; 3. packaging side plate; 4. sealing gasket; 5. triangular bracket; 6. battery cell; 7. external packaging mechanism; 8. heat dissipation cavity; 9. heat dissipation pipe; 10. heat sink; 11. through groove; 12. connecting part; 51. frame; 52. groove part; 53. supporting part; 71. external packaging side plate; 72. external packaging bottom plate; 73. supporting wheel; 74. walking wheel; 75. connecting arm; 76. micro oscillator; 77. track plate; 78. track; 79. slider; 710. connecting rod mechanism; 711. cleaning head; 712. telescopic rod. DETAILED DESCRIPTION

[0024] like Figure 1-Figure 5 As shown, a novel solar module packaging structure comprises: an upper packaging plate 1, which is made of high light transmittance glass; a lower packaging plate 2, which is fixed to the lower side of the upper packaging plate 1 by a packaging side plate 3; the upper packaging plate 1, the lower packaging plate 2 and the packaging side plate 3 constitute an inner packaging mechanism; a triangular bracket 5, which is configured as an array and arranged closely to form an installation space between the triangular bracket 5 and the upper packaging plate 1 and the packaging side plate 3; and a containing space is formed between the triangular bracket 5 and the lower packaging plate 2 and the packaging side plate 3; wherein a battery cell 6 is installed in the installation space; and an outer packaging mechanism 7, which is packaged outside the inner packaging mechanism;

[0025] That is to say, in this embodiment, an inner packaging mechanism and an outer packaging mechanism are constructed, wherein the inner packaging mechanism is arranged inside the outer packaging mechanism, and the inner packaging mechanism and the outer packaging mechanism cooperate with each other to provide better protection for the battery cell.

[0026] In this embodiment, the accommodating space contains heat transfer fluid and heat dissipation pipes 9, and a plurality of heat dissipation pipes 9 are connected to each other to form a heat dissipation pipe string, and the heat dissipation pipe string passes through the lower packaging plate 2 and is connected to the heat dissipation fin 10, and the heat dissipation fin 10 is fixed below the lower packaging plate 2.

[0027] It needs to be explained that a single solar cell module is usually composed of multiple cells connected in series. When silicon solar cells work at high temperatures, the open circuit voltage drops significantly with the increase in temperature, which also leads to a serious shift in the charging operating point, making it easy for the system to be insufficiently charged and damaged. The short-circuit current of the solar cell increases with the increase in temperature, and actual research cases show that the output power of a crystalline silicon solar cell is about 20% higher when the temperature is about 20 degrees than when it is 70 degrees. In the embodiment of the present invention, the heat transfer fluid and the heat dissipation pipe are provided to effectively conduct heat out of the internal packaging structure, dissipate heat, and improve the power generation efficiency.

[0028] As a preferred embodiment, a sealing gasket 4 is provided between the triangular bracket 5 and the lower packaging plate 2 .

[0029] In this embodiment, Figure 3 The triangular bracket 5 includes an inverted V-shaped frame body 51, and grooves 52 are provided on two outer sides of the frame body 51 for placing the battery cell 6. On the one hand, the grooves can provide good positioning for the battery cell 6, so that it is convenient to directly embed it during installation. On the other hand, the grooves can provide certain protection for the battery cell.

[0030] In this embodiment, Figure 2 The upper packaging plate 1 is provided with a plurality of through grooves 11 corresponding to the installation space, each group of through grooves 11 is a plurality of through grooves corresponding to the battery cells 6 in the installation space, and each through groove is embedded with a concave lens;

[0031] It should be explained that the different incident angles of the sun on the solar cell 6 will result in different solar normal radiation received per unit area. The larger the incident angle (the angle with the normal line perpendicular to the solar cell), the less solar normal radiation received (for the same radiation input). Figure 5 , Figure 5 A represents the light received by the tiled cell; Figure 5 In B, the arrows represent the paths of light, wherein the dotted arrows represent the paths of light that do not pass through the concave lens, and the solid arrows represent the paths of light that pass through the concave lens. In this embodiment, the battery cells are arranged in a symmetrically inclined shape, and concave lenses are provided to improve the path of light. The concave lenses can refract and diverge the light, making it close to the light received by the flat battery cells. Therefore, in this embodiment, the overall power generation efficiency can be guaranteed while increasing the number of battery cells packaged.

[0032] In order to improve the overall stability, a horizontal support portion 53 is formed on the top of the frame 51 , and a connecting portion 12 corresponding to the support portion 53 is formed between adjacent through slots.

[0033] In addition, if Figure 4 , the outer packaging mechanism 7 comprises:

[0034] An outer packaging side plate 71, which is fixed to the side of the inner packaging mechanism;

[0035] An outer packaging bottom plate 72, which is fixed to the bottom of the outer packaging side plate 71 and is located at the bottom of the inner packaging mechanism;

[0036] A moving mechanism, which is disposed on the outer packaging side plate 71 and can move along the length direction of the battery cell; and

[0037] The cleaning mechanism is arranged on the moving mechanism.

[0038] Specifically, the moving mechanism includes a support wheel 73, and the support wheel 73 is movably supported vertically in a groove on one side of the outer packaging side plate 71. A walking wheel 74 is provided on the support wheel 73, which is horizontally placed and in contact with the groove, and the walking wheel 74 has power. The walking wheel 74 is connected to the cleaning mechanism through a connecting arm 75 above.

[0039] In addition, the cleaning mechanism is configured as two horizontally connected, each including a track plate 77, a track 78 fixed on the track plate 77, a plurality of sliders 79 spaced and slidably arranged on the track 78, and the plurality of sliders 79 are connected by an X-shaped connecting rod mechanism 710, the connecting rod mechanism includes two cross-hinged rod bodies, and the cross-hinged part thereof is hinged to the slider 79, the two adjacent connecting rod mechanisms are hingedly arranged, the connecting rod mechanism located in the middle is hinged to the output end of the telescopic rod, and the telescopic rod is arranged on the track 78;

[0040] The end of the slider 79 away from the track 78 is provided with a cleaning head, and a telescopic bag is provided at the connection between the cleaning head and the slider 79. The telescopic bag includes a plurality of capsules connected in sequence and capable of moving up and down and telescoping. The capsules are filled with an expansion fluid, and the expansion fluid has a certain positive thermal expansion coefficient. Each of the cleaning heads corresponds to each group of through grooves 11.

[0041] It is necessary to explain that under certain conditions, the shaded solar cell module in a series branch will be treated as a load and consume the energy generated by other illuminated solar cell modules. The shaded solar cell module will heat up at this time, producing a hot spot effect. This effect can seriously damage the solar cell. Part of the energy generated by the illuminated solar cell may be consumed by the shaded cell;

[0042] In order to prevent the solar cell from being damaged due to the hot spot effect, it is best to connect a bypass diode in parallel between the positive and negative electrodes of the solar cell assembly to prevent the energy generated by the illumination assembly from being consumed by the shaded assembly. In addition, in this embodiment, a cleaning mechanism is added to reduce the occurrence of this situation.

[0043] During implementation, the cleaning head and the telescopic bag can be used to achieve gradual cleaning of the upper packaging plate. Specifically, taking a certain day as an example, the temperature gradually rises and then gradually decreases. Cleaning work is carried out during the period of gradually rising temperature. When the temperature is still low, the cleaning head is used for preliminary cleaning to remove large debris, such as leaves. When the temperature is high, the expansion fluid in the bag expands due to heat, thereby driving the cleaning head to move downward, reducing the distance between the cleaning head and the upper packaging plate 1. Specifically, the distance between the cleaning head and the concave lens is mainly reduced, so as to facilitate the cleaning head to thoroughly clean the upper packaging plate 1.

[0044] As a preferred embodiment, the connecting arm 75 is divided into two parts in the vertical direction, and the two parts are connected by a micro-oscillator 76.

[0045] In the present embodiment, an inner packaging mechanism and an outer packaging mechanism are constructed, wherein the inner packaging mechanism is arranged inside the outer packaging mechanism, and the inner packaging mechanism and the outer packaging mechanism cooperate with each other to provide better protection for the battery cells. In addition, the inner packaging mechanism can ensure the overall power generation efficiency while increasing the number of battery cells packaged, and the outer packaging mechanism can provide certain protection for the inner packaging mechanism and perform regular cleaning for the upper packaging plate, thereby ensuring the power generation efficiency while extending its service life.

[0046] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A solar module packaging structure, comprising an upper packaging plate, a lower packaging plate and a packaging side plate, wherein the upper packaging plate, the lower packaging plate and the packaging side plate form an inner packaging mechanism, wherein a triangular bracket is installed in the inner packaging mechanism, wherein the triangular bracket is in an array and is arranged closely, wherein an installation space is formed between the triangular bracket and the upper packaging plate and the packaging side plate, wherein an accommodation space is formed between the triangular bracket and the lower packaging plate and the packaging side plate, wherein a battery cell is installed in the installation space, and an outer packaging mechanism is installed outside the inner packaging mechanism; wherein a heat transfer liquid and a heat dissipation pipe are installed in the accommodation space, wherein a plurality of heat dissipation pipes are interconnected to form a heat dissipation pipe string, wherein a heat dissipation fin is installed on the lower end surface of the lower packaging plate, wherein the ... The heat pipe string passes through the lower packaging plate and is connected to the heat sink; the triangular bracket includes an inverted V-shaped frame, and the two outer sides of the frame are provided with grooves for placing battery cells; the upper packaging plate is provided with multiple groups of through grooves corresponding to the installation space, each group of through grooves is a plurality of through grooves corresponding to the battery cells in the installation space, and each through groove is embedded with a concave lens; the top of the frame forms a horizontal support portion, and adjacent through grooves form connecting portions corresponding to the support portion; the outer packaging mechanism includes an outer packaging side plate, which is fixed to the side of the inner packaging mechanism; an outer packaging bottom plate, which is fixed to the bottom of the outer packaging side plate and is located at the bottom of the inner packaging mechanism ； A moving mechanism, which is arranged on the outer packaging side plate and can move along the length direction of the battery cell; and a cleaning mechanism, which is arranged on the mobile mechanism; the mobile mechanism includes a supporting wheel, the supporting wheel is movably supported vertically in a groove on one side of the outer packaging side plate, the supporting wheel is provided with a walking wheel placed horizontally and in contact with the groove, and the walking wheel has power, and the upper part of the walking wheel is connected to the cleaning mechanism through a connecting arm, characterized in that: the cleaning mechanism is configured as two horizontally connected, each including a track plate, a track fixed on the track plate, and a plurality of sliders arranged on the track, and the plurality of sliders are connected by an X-shaped connecting rod mechanism, The connecting rod mechanism includes two cross-hinged rod bodies, and the cross-hinged part is hinged to the slider, and two adjacent connecting rod mechanisms are hingedly arranged. The connecting rod mechanism located in the middle is hinged to the output end of the telescopic rod. The telescopic rod is arranged on a track, and a cleaning head is arranged at the end of the slider away from the track. A telescopic bag is arranged at the connection between the cleaning head and the slider. The telescopic bag includes a plurality of capsules connected in sequence that can move up and down and telescope. The capsules are filled with expansion fluid, and the expansion fluid has a certain positive thermal expansion coefficient. Each of the cleaning heads corresponds to each group of through grooves.

2. A solar module packaging structure according to claim 1, Features: The vertical part of the connecting arm is divided into two parts, and the two parts are connected by a micro-oscillator.

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