Subfissure-resistant photovoltaic module

Abstract

The utility model discloses an anti-subfissure photovoltaic assembly comprising a main body mechanism and a constant temperature mechanism. The main body mechanism comprises an inner-layer shell, an outer-layer shell fixed on the outer side of the inner-layer shell, a photovoltaic panel main body mounted on the inner wall of the inner-layer shell, double-layer laminated glass mounted on one side of the outer-layer shell and a fixed frame fixed on the outer-layer shell through bolts, and the inner-layer shell and the outer-layer shell are mutually connected to form a double-layer shell arrangement; the photovoltaic panel main body and the double-layer laminated glass are arranged in the outer layer shell, and the cavity between the outer layer shell and the inner layer shell is filled with inert gas, so that the influence of external environment temperature change on the photovoltaic panel main body can be effectively isolated, the hidden crack of the photovoltaic panel main body caused by the influence of the external environment temperature is avoided, and the double-layer laminated glass is arranged on one side of the outer layer shell and cooperates with the inner layer shell to form a closed environment. The device has the advantage of preventing the photovoltaic panel from generating subfissure due to temperature difference change.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic module technical field, concretely is a kind of anti-hidden crack photovoltaic module. BACKGROUND

[0002] With the continuous development of crystalline silicon solar market, more and more quality problems are exposed, and the industry has a deeper understanding of photovoltaic cell module quality. At present, more attention is paid to the hidden cracks of photovoltaic modules, and the phenomenon of solar cell cracking in photovoltaic modules.

[0003] Hidden cracks refer to hidden defects caused by non-obvious surface defects of photovoltaic panels or external forces such as impact. The main reasons are as follows: aging, improper installation, excessive temperature difference, external impact, etc. Among them, the excessive temperature difference is the main reason for the hidden cracks of photovoltaic modules. On this basis, the present application proposes an anti-hidden crack photovoltaic module. SUMMARY

[0004] The utility model aims at solving one of the technical problems existing in the prior art or related art.

[0005] To this end, the utility model employs the technical scheme: an anti-hidden crack photovoltaic module, comprising: a main body mechanism and a constant temperature mechanism, the main body mechanism comprises an inner layer shell, an outer layer shell fixed on the outer side of the inner layer shell, a photovoltaic panel main body installed on the inner wall of the inner layer shell, a double-layer laminated glass installed on one side of the outer layer shell, and a fixed frame fixed on the outer layer shell by bolts.

[0006] The constant temperature mechanism comprises a circulating pipe symmetrically arranged on one side of the outer layer shell and communicating with the inner cavity of the inner layer shell, a high-speed fan installed on the inner wall of the circulating pipe, a condensing assembly installed on one side of the high-speed fan in the inner cavity of the circulating pipe, an electric heating wire installed on the other side of the high-speed fan in the inner cavity of the circulating pipe, and a temperature sensor installed on the circulating pipe and extending into the inner cavity of the circulating pipe.

[0007] In a preferred example, the utility model can be further configured as: one side of the circulating pipe communicates with the inner cavity of the inner layer shell through an air inlet pipe, and the other side communicates with the inner cavity of the inner layer shell through an air outlet pipe, and the high-speed fan faces the direction of the air outlet pipe.

[0008] In a preferred example, the utility model can be further configured as: the condensing assembly comprises a base arranged on one side of the circulating pipe, heat exchange plates fixed on the base in an array and extending into the circulating pipe, a plurality of semiconductor refrigerating sheets embedded on the base, and heat dissipation fins fixed on one side of the semiconductor refrigerating sheets.

[0009] In a preferred example, the utility model can be further configured as: the cold end of the semiconductor refrigerating sheet is tightly attached to the base, and the hot end is tightly attached to the heat dissipation fins.

[0010] In a preferred embodiment, the present invention can be further configured such that: the fixing frame is disposed on one side of the double-layer laminated glass, and bolts pass through the fixing frame and engage with the double-layer laminated glass on the outer shell.

[0011] In a preferred embodiment, the present invention can be further configured such that the cavity between the inner shell and the outer shell is filled with an inert gas.

[0012] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0013] 1. In this utility model, by setting an inner shell and an outer shell, a double-shell design is adopted. At the same time, double-layer laminated glass is installed on the outer shell by a fixing frame. Through the above settings, the photovoltaic panel body can be in a sealed environment without affecting the photovoltaic conversion of the photovoltaic panel body. The photovoltaic panel body is isolated from the external environment, thereby effectively avoiding the generation of microcracks in the photovoltaic panel body caused by changes in the external environment temperature, and increasing the practical performance.

[0014] 2. In this utility model, a circulation pipe is installed on one side of the outer shell and communicates with the inner cavity of the inner shell. At the same time, a high-speed fan is installed in the middle of the inner wall of the circulation pipe. The high-speed fan can draw air from the inner cavity of the inner shell into the circulation pipe and send the air in the circulation pipe into the inner shell to form an internal air circulation. Meanwhile, a condenser assembly and a heating wire are installed on the circulation pipe, and a temperature sensor is installed on one side of the circulation pipe. The temperature sensor monitors the air temperature in the inner cavity of the inner shell in real time. When the air temperature in the inner cavity of the inner shell is higher or lower than the set value, the condenser assembly or the heating wire is activated to cool or heat the air, thereby ensuring that the temperature inside the inner shell is in a constant temperature environment, and further preventing the photovoltaic panel body from developing microcracks due to temperature changes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a bottom view of the structure of this utility model;

[0017] Figure 3 This is a front sectional view of the present invention;

[0018] Figure 4 This is a side sectional view of the present invention.

[0019] Figure 5 This is an exploded view of the structure of this utility model;

[0020] Figure 6 This is an exploded view of the condenser structure of this utility model.

[0021] Reference signs:

[0022] 100, main body mechanism; 110, inner layer shell; 120, outer layer shell; 130, photovoltaic panel body; 140, double-layer laminated glass; 150, fixed frame;

[0023] 200, constant temperature mechanism; 210, circulating pipe; 211, air inlet pipe; 212, air outlet pipe; 220, high-speed fan; 230, condensing assembly; 231, base; 232, heat exchange plate; 233, semiconductor refrigeration sheet; 234, heat dissipation fin; 240, electric heating wire; 250, temperature sensor. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions and advantages of the present application clearer, further detailed description will be made to the present application with reference to the embodiments and the accompanying drawings. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0025] Some embodiments of the present application will be described below with reference to the accompanying drawings,

[0026] Embodiment 1:

[0027] In combination with Figures 1-6 the drawings, the present embodiment provides an anti-hidden crack photovoltaic module, which comprises a main body mechanism 100 and a constant temperature mechanism 200.

[0028] The main body mechanism 100 comprises an inner layer shell 110, an outer layer shell 120 fixed on the outer side of the inner layer shell 110, a photovoltaic panel body 130 installed on the inner wall of the inner layer shell 110, a double-layer laminated glass 140 installed on one side of the outer layer shell 120, and a fixed frame 150 fixed on the outer layer shell 120 by bolts.

[0029] The inner layer shell 110 and the outer layer shell 120 are connected to each other to form a double-layer shell arrangement, and the cavity between the two is filled with inert gas, which can effectively block the influence of the change of the external environment temperature on the photovoltaic panel body 130, and avoid the hidden crack of the photovoltaic panel body 130 caused by the influence of the external environment temperature.

[0030] The double-layer laminated glass 140 is installed on one side of the outer layer shell 120 to form a closed environment with the inner layer shell 110, and the double-layer laminated glass 140 has poor thermal conductivity, which further ensures the stability of the temperature in the closed environment, and does not affect the photoelectric conversion of the photovoltaic panel body 130.

[0031] The fixed frame 150 is arranged on one side of the double-layer laminated glass 140, and the bolts are engaged on the outer shell 120 through the fixed frame 150 and the double-layer laminated glass 140, so as to fix the double-layer laminated glass 140 and ensure the stability of the double-layer laminated glass 140.

[0032] The constant-temperature mechanism 200 is used for ensuring the stability of the inner cavity temperature of the inner shell 110, and comprises a circulation pipe 210 symmetrically arranged on one side of the outer shell 120 and communicated with the inner cavity of the inner shell 110, a high-speed fan 220 mounted on the inner wall of the circulation pipe 210, a condensing assembly 230 mounted on one side of the inner cavity of the circulation pipe 210 and located on one side of the high-speed fan 220, an electric heating wire 240 mounted on the other side of the inner cavity of the circulation pipe 210 and located on the other side of the high-speed fan 220, and a temperature sensor 250 mounted on the circulation pipe 210 and extending into the inner cavity of the circulation pipe 210.

[0033] One side of the circulation pipe 210 is communicated with the inner cavity of the inner shell 110 through an air inlet pipe 211, and the other side is communicated with the inner cavity of the inner shell 110 through an air outlet pipe 212. The high-speed fan 220 faces the direction of the air outlet pipe 212. Through the arrangement, when the high-speed fan 220 is started, the air in the inner cavity of the inner shell is sucked into the circulation pipe 210 through the air inlet pipe 211, and then is sent back to the inner cavity of the inner shell through the air outlet pipe 212, so as to form air internal circulation in the inner cavity of the inner shell.

[0034] The condensing assembly 230 is used for cooling the air in the circulation pipe 210, and comprises a base 231 arranged on one side of the circulation pipe 210, heat exchange plates 232 fixed in an array on the base 231 and extending into the circulation pipe 210, a plurality of semiconductor refrigerating pieces 233 embedded in the base 231, and heat dissipation fins 234 fixed on one side of the semiconductor refrigerating pieces 233. The base 231 and the heat exchange plates 232 are made of heat-conducting materials, so as to facilitate heat transfer. The cold end of the semiconductor refrigerating piece 233 is attached to the base 231, so as to cool the base 231 and the heat exchange plates 232. When the hot air passes through the heat exchange plates 232, the hot air exchanges heat with the heat exchange plates 232, so as to reduce the temperature. Then, the air is sent back to the inner cavity of the inner shell, so as to avoid that the temperature in the inner cavity of the inner shell 110 is too high.

[0035] The electric heating wire 240 is used for heating the air in the circulation pipe 210. When the temperature of the air is too low, the electric heating wire 240 is started. When the air passes through the electric heating wire 240, the air is heated by the electric heating wire 240 and then is sent back to the inner cavity of the inner shell, so as to avoid that the temperature in the inner cavity of the inner shell 110 is too low. The electric heating wire 240 cooperates with the condensing assembly 230, so as to form a constant-temperature environment in the inner cavity of the inner shell 110, and further avoid that the photovoltaic panel main body 130 is cracked due to temperature change.

[0036] The temperature sensor 250 is used for monitoring the temperature of the air in the circulation pipe 210 in real time, and starts the electric heating wire 240 when the temperature of the air is too low, and starts the condensing assembly 230 when the temperature of the air is too high.

[0037] The working principle and use process of the utility model: install the photovoltaic module to the support, because the double layer shell design of inner layer shell 110 plus outer layer shell 120, plus double layer laminated glass 140 again, can form a closed environment, photovoltaic panel main body 130 is arranged in the closed environment, can effectively avoid the temperature change of outside environment to cause photovoltaic panel main body 130 thermal expansion and cold shrinkage to produce hidden crack, simultaneously, high-speed fan 220 starts, through air inlet pipe 211 to the air in the inner cavity of inner shell is drawn into circulation pipe 210, then through air outlet pipe 212 to be sent back to the inner cavity of inner shell, form air internal circulation in the inner cavity of inner shell, simultaneously, temperature sensor 250 real-time monitoring air temperature, when air temperature is higher than the set value, start condensing assembly 230, semiconductor refrigerating fin 233 starts, and carries out refrigeration to base 231 and heat exchange plate 232, hot air passes through heat exchange plate 232, and carries out heat exchange with heat exchange plate 232, reduces temperature, then is sent back to the inner cavity of inner shell, when air temperature is too low, electric heating wire 240 starts, and air passes through electric heating wire 240, is heated by electric heating wire 240 and is sent back to the inner cavity of inner shell, to guarantee the inner cavity of inner shell in constant temperature environment, avoid temperature change to cause photovoltaic panel to produce hidden crack.

[0038] Although the embodiments of the utility model have been shown and described, those ordinarily skilled in the art can understand that the embodiments can be changed, modified, replaced and changed in many ways without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and its equivalents.

Claims

1. A crack-resistant photovoltaic module comprising: The main body mechanism (100) and the constant temperature mechanism (200) are characterized in that the main body mechanism (100) comprises an inner shell (110), an outer shell (120) fixed outside the inner shell (110), a photovoltaic panel main body (130) installed on the inner wall of the inner shell (110), a double-layer laminated glass (140) installed on one side of the outer shell (120), and a fixed frame (150) fixed on the outer shell (120) by bolts. The constant temperature mechanism (200) comprises a circulating pipe (210) symmetrically arranged on one side of the outer shell (120) and communicating with the inner cavity of the inner shell (110), a high-speed fan (220) installed on the inner wall of the circulating pipe (210), a condensing assembly (230) installed in the inner cavity of the circulating pipe (210) on one side of the high-speed fan (220), an electric heating wire (240) installed in the inner cavity of the circulating pipe (210) on the other side of the high-speed fan (220), and a temperature sensor (250) installed on the circulating pipe and extending into the inner cavity of the circulating pipe (210).

2. A crack resistant photovoltaic module according to claim 1, wherein, One side of the circulating pipe (210) communicates with the inner cavity of the inner shell (110) through an air inlet pipe (211), and the other side communicates with the inner cavity of the inner shell (110) through an air outlet pipe (212), and the high-speed fan (220) faces the direction of the air outlet pipe (212).

3. A crack resistant photovoltaic module according to claim 1, wherein, The condensing assembly (230) comprises a base (231) arranged on one side of the circulating pipe (210), heat exchange plates (232) fixed in an array on the base (231) and extending into the circulating pipe (210), a plurality of semiconductor refrigeration sheets (233) embedded in the base (231), and heat dissipation fins (234) fixed on one side of the semiconductor refrigeration sheets (233).

4. A crack resistant photovoltaic module according to claim 3, wherein, The cold end of the semiconductor refrigeration sheet (233) is close to the base (231), and the hot end is close to the heat dissipation fin (234).

5. A crack resistant photovoltaic module according to claim 1, wherein, The fixed frame (150) is arranged on one side of the double-layer laminated glass (140), and the bolts pass through the fixed frame (150) and the double-layer laminated glass (140) and engage on the outer shell (120).

6. A crack resistant photovoltaic module according to claim 1, wherein, The cavity between the inner shell (110) and the outer shell (120) is filled with inert gas.

Images