Temperature control system based on photovoltaic module

Abstract

The utility model relates to a temperature control system based on a photovoltaic module, and the system comprises the photovoltaic module of which the back surface is provided with a first flow path for a first refrigerant to flow; the heat storage component is used for storing heat and is internally provided with a second flow path; the cold storage component is used for storing cold energy and is internally provided with a third flow path; the first on-off valve group is used for controlling on-off of a connecting flow path between the first flow path and the second flow path; the second on-off valve group is used for controlling on-off of a connecting flow path between the first flow path and the third flow path; the target temperature control component is used for adjusting the temperature through the heat storage component or the cold storage component; in the heat storage mode, the first on-off valve group is in a switched-on state, and the second on-off valve group is in a switched-off state, so that a first refrigerant absorbs heat generated by working of the photovoltaic module and flows through the heat storage part to store the heat; and in the cold accumulation mode, the second on-off valve group is in a switched-on state, and the first on-off valve group is in a switched-off state, so that the first refrigerant flows through the cold accumulation part to store cold energy and radiates heat through the photovoltaic module.

Description

Technical Field

[0001] The present disclosure relates to a temperature control system based on photovoltaic modules. Background Art

[0002] Solar energy is the largest clean energy source available today, both in terms of resources and scale. China's solar energy resources rank among the highest in the world, and various solar energy utilization methods are gradually developing and improving. As early as 2013, China's newly installed photovoltaic capacity accounted for over 30% of the world's total output, making it the world's largest photovoltaic market and producer. Currently, the photoelectric conversion efficiency of traditional photovoltaic modules is around 20%. When solar energy strikes the surface of a photovoltaic cell, approximately 80% of the energy is reflected or converted into heat, causing the module to heat up during operation. Research has shown that for every 1°C increase in the temperature of a photovoltaic module, its power generation capacity decreases by 0.5%. Therefore, heating of photovoltaic cells significantly affects their power generation efficiency. Utility Model Content

[0003] Some embodiments of the present disclosure provide a temperature control system based on photovoltaic modules, which can improve the power generation efficiency of photovoltaic modules.

[0004] The present disclosure provides a temperature control system based on a photovoltaic module, comprising:

[0005] The photovoltaic module has a first flow path for the flow of a first refrigerant provided on its back side;

[0006] a heat storage component, for storing heat, and having a second flow path therein;

[0007] A cold storage component, used for storing cold energy, and having a third flow path inside;

[0008] A first on-off valve group, used for controlling the on-off of the connecting flow path between the first flow path and the second flow path;

[0009] A second on-off valve group, used for controlling the on-off of the connecting flow path between the first flow path and the third flow path; and

[0010] A target temperature control component for adjusting the temperature through a heat storage component or a cold storage component;

[0011] In the heat storage mode, the first on-off valve group is in the on state and the second on-off valve group is in the off state, so that the first refrigerant absorbs the heat generated by the photovoltaic module and flows through the heat storage component to store heat; in the cold storage mode, the second on-off valve group is in the on state and the first on-off valve group is in the off state, so that the first refrigerant flows through the cold storage component to store cold and dissipate heat through the photovoltaic module.

[0012] In some embodiments, the target temperature control component includes an energy storage battery.

[0013] In some embodiments, the temperature control system based on the photovoltaic module further includes a four-way reversing valve and a compressor, wherein a first port of the compressor is connected to a first outlet of the first flow path through the four-way reversing valve, and a second port of the compressor is connected to a first inlet of the first flow path after passing through a heat storage component or a cold storage component through the four-way reversing valve;

[0014] In heat storage mode, the compressor works in the forward direction; in cold storage mode, the compressor works in the reverse direction.

[0015] In some embodiments, the photovoltaic module-based temperature control system further includes:

[0016] a first temperature detection component configured to detect the temperature of the heat storage component; wherein the first on-off valve group is configured to be in an off state when the temperature detection value of the heat storage component is higher than a first temperature threshold; and / or

[0017] The second temperature detection component is configured to detect the temperature of the cold storage component; wherein the second on-off valve group is configured to be in an off state when the temperature detection value of the cold storage component is lower than a second temperature threshold.

[0018] In some embodiments, a fourth flow path is provided in the heat storage component, a fifth flow path is provided in the cold storage component, and a sixth flow path for the flow of the second refrigerant is provided in the target temperature control component. The temperature control system based on the photovoltaic module further includes:

[0019] a third on-off valve group, configured to control the on-off of the connecting flow path between the fourth flow path and the sixth flow path; and

[0020] a fourth on-off valve group, configured to control the on-off of a connecting flow path between the fifth flow path and the sixth flow path;

[0021] Among them, when the target temperature control component needs to be heated, the third on-off valve group is in the on state and the fourth on-off valve group is in the off state; when the target temperature control component needs to be cooled, the third on-off valve group is in the off state and the fourth on-off valve group is in the on state.

[0022] In some embodiments, the photovoltaic module-based temperature control system further includes:

[0023] a first temperature detection component configured to detect the temperature of a target temperature-controlled component;

[0024] Among them, when the temperature detection value of the target temperature control component is lower than the lower limit of the heating temperature, the third on-off valve group is in the on state and the fourth on-off valve group is in the off state; when the temperature detection value of the target temperature control component is higher than the upper limit of the heating temperature, the third on-off valve group and the fourth on-off valve group are both in the off state; the upper limit of the heating temperature is greater than the lower limit of the heating temperature.

[0025] In some embodiments, the photovoltaic module-based temperature control system further includes:

[0026] a first temperature detection component configured to detect the temperature of a target temperature-controlled component;

[0027] Among them, when the temperature detection value of the target temperature control component is higher than the upper limit of the cooling temperature, the third on-off valve group is in the disconnected state and the fourth on-off valve group is in the connected state; when the temperature detection value of the target temperature control component is lower than the lower limit of the cooling temperature, the third on-off valve group and the fourth on-off valve group are both in the disconnected state; the upper limit of the cooling temperature is greater than the lower limit of the cooling temperature.

[0028] In some embodiments, the connecting flow path includes: a first flow path segment and a second flow path segment, wherein the flow directions of the refrigerant in the first flow path segment and the second flow path segment are opposite;

[0029] At least one of the first on-off valve group, the second on-off valve group, the third on-off valve group and the fourth on-off valve group includes a two-way on-off valve, which is configured to simultaneously control the on-off of the first flow path section and the second flow path section in the same connecting flow path.

[0030] In some embodiments, an independent second flow path and a fourth flow path are provided in the heat storage component, the second flow path is for the flow of the first refrigerant, and the fourth flow path is for the flow of the second refrigerant. The heat storage component is filled with a heat transfer medium, and the heat transfer medium is used to exchange heat with the first refrigerant or the second refrigerant; and / or

[0031] An independent third flow path and a fifth flow path are provided in the cold storage component. The third flow path is for the flow of the first refrigerant, and the fifth flow path is for the flow of the second refrigerant. The cold storage component is filled with a heat transfer medium, which is used to exchange heat with the first refrigerant or the second refrigerant.

[0032] In some embodiments, in a first direction, the interface of the second flow path and the interface of the fourth flow path are led out from different sides of the heat storage component, and in a second direction perpendicular to the first direction, the fourth outlet of the fourth flow path is arranged close to the second inlet of the second flow path, and the fourth inlet of the fourth flow path is arranged close to the second outlet of the second flow path; and / or

[0033] In the first direction, the interface of the third flow path and the interface of the fifth flow path are led out from different sides of the cold storage component. In the second direction perpendicular to the first direction, the fifth outlet of the fifth flow path is arranged close to the third inlet of the third flow path, and the fifth inlet of the fifth flow path is arranged close to the third outlet of the third flow path.

[0034] In some embodiments, the target temperature control component includes an energy storage battery, the energy storage battery includes a temperature control component and a battery layer, the temperature control component is used to cool the battery layer, and a sixth flow path for the flow of the second refrigerant is provided in the temperature control component. The distribution density of the sixth flow path in the middle area of the battery layer is higher than that in the peripheral area.

[0035] In some embodiments, the temperature control system based on photovoltaic modules further includes a circulation pump provided on the connecting flow path and configured to drive the flow of the first refrigerant.

[0036] Based on the above technical solution, the present disclosure has at least the following beneficial effects:

[0037] The temperature control system based on photovoltaic modules in the disclosed embodiment can utilize the flow of the first refrigerant to cool the photovoltaic modules by laying a first flow path on the back of the photovoltaic modules and setting a heat storage component, thereby reducing the operating temperature of the photovoltaic modules to improve the photoelectric conversion efficiency and thus the power generation efficiency. It can also store the waste heat generated during the operation of the photovoltaic modules to heat the target temperature control components when needed to keep them at a suitable operating temperature, thereby meeting the performance requirements of low-temperature operation and rationally utilizing the waste heat of the photovoltaic modules during operation to improve resource utilization.

[0038] Moreover, by setting up a cold storage component, when the photovoltaic module is not working, it can also serve as a radiator to store cold energy in the cold storage component through the flow of the first refrigerant, so as to cool the target temperature control component when needed and keep it at a suitable working temperature. When the ambient temperature is high or the internal heat is large, the performance requirements of high-temperature operation can be met. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of this application. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the drawings:

[0040] Figure 1 Schematic diagram of the principles of some embodiments of the temperature control system based on photovoltaic modules disclosed herein;

[0041] Figure 2 A schematic diagram of setting a first flow path on the back of a photovoltaic module;

[0042] Figure 3 A schematic diagram of providing a second flow path and a third flow path in a heat storage component;

[0043] Figure 4 Schematic diagram of providing a fourth flow path and a fifth flow path in the cold storage component;

[0044] Figure 5 Schematic diagrams of the structures of some embodiments of energy storage batteries;

[0045] Figure 6 This is a schematic diagram of setting up a sixth flow path in the energy storage battery.

[0046] Figure 7 This is a flow chart of the control method in heat storage mode and cold storage mode.

[0047] Figure 8 The figure is a flow chart of a control method for heating an energy storage battery.

[0048] Figure 9 The figure is a flow chart of a control method for cooling an energy storage battery.

[0049] It should be understood that the size of each part shown in the drawings is not drawn according to the actual proportional relationship.In addition, the same or similar reference numerals represent the same or similar components.

[0050] Description of Reference Numerals

[0051] 1. Photovoltaic module; 11. First flow path; 12. First inlet; 13. First outlet;

[0052] 2. Four-way reversing valve;

[0053] 3. Compressor; 31. First port; 32. Second port;

[0054] 4. The first on-off valve group;

[0055] 5. The second on-off valve group;

[0056] 6. Heat storage component; 61. Second flow path; 62. Fourth flow path; 63. Second inlet; 64. Second outlet; 65. Fourth inlet; 66. Fourth outlet; 67. First temperature detection component;

[0057] 7. Cold storage component; 71. Third flow path; 72. Fifth flow path; 73. Third inlet; 74. Third outlet; 75. Fifth inlet; 76. Fifth outlet; 77. Second temperature detection component;

[0058] 8. The third on-off valve group;

[0059] 9. Fourth on-off valve group;

[0060] 10. Circulation pump;

[0061] 20. Energy storage battery; 21. Housing; 22. Battery cell; 23. Temperature control component; 231. Sixth inlet; 232. Sixth outlet; 233. Housing; 234. Partition; 235. Sixth flow path; 24. Electrical connector; 25. Third temperature detection component. DETAILED DESCRIPTION

[0062] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present disclosure, its application, or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of parts and steps, the composition of materials, numerical expressions, and numerical values set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0063] The terms "first", "second" and similar terms used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. The terms "include" or "comprises" and similar terms mean that the elements before the term include the elements listed after the term, and do not exclude the possibility of also including other elements. The terms "upper", "lower", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0064] In the present disclosure, when a specific device is described as being located between a first device and a second device, an intervening device may or may not be present between the specific device and the first device or the second device. When a specific device is described as being connected to another device, the specific device may be directly connected to the other device without an intervening device, or may be not directly connected to the other device but with an intervening device.

[0065] All terms (including technical or scientific terms) used in this disclosure have the same meaning as those understood by one of ordinary skill in the art to which this disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, general dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or highly formal sense, unless explicitly defined herein.

[0066] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0067] Based on the above-mentioned embodiments of the present disclosure, in the absence of explicit negation or conflict, the technical features of one embodiment may be beneficially combined with one or more other embodiments.

[0068] like Figures 1 to 6 As shown, the present disclosure provides a temperature control system based on a photovoltaic module and a control method thereof, which in some embodiments includes:

[0069] The photovoltaic module 1 has a first flow path 11 for the flow of a first refrigerant on its back side;

[0070] The heat storage component 6 is used to store heat and has a second flow path 61 therein;

[0071] The cold storage component 7 is used to store cold energy and has a third flow path 71 inside.

[0072] The first on-off valve group 4 is used to control the on-off of the connecting flow path between the first flow path 11 and the second flow path 61;

[0073] The second on-off valve group 5 is used to control the on-off of the connecting flow path between the first flow path 11 and the third flow path 71; and

[0074] Target temperature control component, used to adjust the temperature through the heat storage component 6 or the cold storage component 7;

[0075] In the heat storage mode, the first on-off valve group 4 is in the on state and the second on-off valve group 5 is in the off state, so that the first refrigerant absorbs the heat generated by the photovoltaic component 1 and flows through the heat storage component 6 to store heat; in the cold storage mode, the second on-off valve group 5 is in the on state and the first on-off valve group 4 is in the off state, so that the first refrigerant flows through the cold storage component 7 to store cold energy and dissipate heat through the photovoltaic component 1.

[0076] The photovoltaic module 1 includes a glass plate, a cell and a back plate. The back plate is located on the back of the photovoltaic module 1 and protects and supports the cell. The cell is sandwiched between the glass plate and the back plate. The photovoltaic module 1 is used to convert sunlight into electrical energy. Figure 2 As shown, a first flow path 11 is provided on the back of the photovoltaic module 1. The first flow path 11 is provided within the backsheet or on the outer surface of the backsheet. The first flow path 11 can be provided in the form of a coil with an S-shaped curved extension path. The first flow path 11 can cover most of the backsheet. The first flow path 11 has a first inlet 12 and a first outlet 13.

[0077] The heat storage member 6 and the cold storage member 7 are provided independently.

[0078] For example, when the photovoltaic module 1 generates electricity during the day, the first flow path 11, the second flow path 61 and the connecting flow path therebetween form a heat storage refrigerant circulation loop, and the first refrigerant flows in the heat storage circulation loop. In the heat storage mode, the heat storage component 6 is connected to the heat storage circulation loop, and the cold storage component 7 does not work. When the first refrigerant flows through the first flow path 11, it takes away the heat generated by the photovoltaic module 1 when it is working, and when flowing through the second flow path 61, the heat storage component 6 is used to store the waste heat generated by the photovoltaic module 1 when it is working, and transfer the heat to the inside of the heat storage component 6 for heat storage.

[0079] At night, when the photovoltaic module 1 is not generating electricity, the first flow path 11, the third flow path 71, and the connecting flow path between the two form a cold storage circulation loop. The first refrigerant flows in the cold storage circulation loop. The cold storage circulation loop and the heat storage circulation loop can have a common flow path. In cold storage mode, the cold storage component 7 is connected to the cold storage circulation loop, and the heat storage component 6 is not operating. When the first refrigerant flows through the second flow path 61, it removes heat from the cold storage component 7. At this time, the photovoltaic module 1 acts as a radiator to dissipate heat. This heat is quickly dissipated by long-range radiation when flowing through the first flow path 11, which is equivalent to storing cold energy in the cold storage component 7.

[0080] When the target temperature control component is working, the temperature can be adjusted by the heat storage component 6 or the cold storage component 7 according to the actual temperature requirements. When the temperature is lower than the appropriate temperature range, the target temperature control component is heated by the heat storage component 6. When the temperature is higher than the appropriate temperature range, the target temperature control component is cooled by the cold storage component 7 to keep the target temperature control component within the appropriate operating temperature range.

[0081] This embodiment lays a first flow path 11 on the back of the photovoltaic module 1 and provides a heat storage component 6. The flow of the first refrigerant can be used to cool the photovoltaic module 1, thereby reducing the operating temperature of the photovoltaic module 1 to improve the photoelectric conversion efficiency and thus the power generation efficiency. The waste heat generated during the operation of the photovoltaic module 1 can be stored to heat the target temperature control component when needed to keep it at a suitable operating temperature. This can meet the performance requirements of low-temperature operation and rationally utilize the waste heat of the photovoltaic module 1 during operation to improve resource utilization.

[0082] Moreover, by providing a cold storage component 7, when the photovoltaic module 1 is not working, it can also serve as a radiator, so that the cold energy is stored in the cold storage component 7 through the flow of the first refrigerant, so as to cool the target temperature control component when needed and keep it at a suitable working temperature. When the ambient temperature is high or the internal heat is large, the performance requirements of high-temperature operation can be met.

[0083] In some embodiments, as Figure 1 As shown, the target temperature control component includes an energy storage battery 20 .

[0084] For example, the energy storage battery 20 can be used to store the electric energy generated by solar power generation equipment, wind power generation equipment, etc., and can also release the electric energy for use.

[0085] Existing energy storage batteries 20 typically have water or air cooling components installed internally or on their surfaces to prevent excessive operating temperatures. Alternatively, when operating in low-temperature environments, heating is required for better startup, typically using electric heating. Therefore, to achieve both heating and cooling temperature control functions, two temperature control components must be installed, resulting in a complex structure.

[0086] The embodiment of the present disclosure adopts a heat exchange method to store cold energy in the cold storage component 7 when the photovoltaic module 1 is not generating electricity. When the ambient temperature is high or when the energy storage battery 20 generates heat due to long-term operation, the cold storage component 7 can be used to cool the energy storage battery 20. When the working environment temperature of the energy storage battery 20 is low, the waste heat generated by the photovoltaic module 1 is stored in the heat storage component 6 to heat the energy storage battery 20, thereby optimizing the low-temperature starting performance and enabling sufficient charging and discharging when working at low temperatures.

[0087] Therefore, by rationally utilizing the waste heat generated by the photovoltaic module 1 and the cold energy stored at night, the temperature of the energy storage battery 20 can be actively adjusted under different operating conditions, so that the energy storage battery 20 can operate in a suitable temperature range and obtain better charging and discharging effects in cold or hot environments. Moreover, only one system is set up and different strategies are run to meet the heating and cooling needs at the same time, thereby improving the charging and discharging efficiency of the energy storage battery 20. The battery cells 22 inside the energy storage battery 20 are not prone to expansion problems after long-term use, thereby extending the service life and safety of the energy storage battery 20, and at the same time achieving cooling of the photovoltaic module 1, improving the photoelectric conversion efficiency, and improving the power generation efficiency of the photovoltaic module 1.

[0088] Moreover, only one set of temperature control system is required to be applicable to different operating conditions, and the structure can be simplified. Moreover, the temperature control system is placed outside the energy storage battery 20 , which can reduce the volume of the energy storage battery 20 .

[0089] In some embodiments, the electricity generated by the photovoltaic assembly 1 is at least partially stored in the energy storage battery 20 .

[0090] During the daytime power generation process of the photovoltaic module 1, the electricity can be supplied to the power grid or electrical equipment, such as a compressor or a circulation pump, and the remaining electricity can be stored in the energy storage battery 20 for use as a load or emergency power supply; when the photovoltaic module 1 is not working at night, if the power supply of the power grid is insufficient, the energy storage battery 20 can release electricity for supplementation.

[0091] In this embodiment, the power generated by the photovoltaic module 1 is stored in the energy storage battery 20, and the temperature of the energy storage battery 20 is further adjusted by using the photovoltaic module 1 already on site. For example, the energy storage battery 20 is heated by using the waste heat of the photovoltaic module 1 during operation, or the photovoltaic module 1 is used as a radiator to store cold energy in the cold storage component 7 to cool the energy storage battery 20. In this way, the photovoltaic module 1 can be fully utilized in terms of both electrical energy and thermal energy, which not only improves the power generation efficiency of the photovoltaic module 1, but also can store excess electrical energy in the energy storage battery 20, and also fully utilizes the heat of the photovoltaic module 1. Therefore, resource utilization can be optimized, and the structure can be simplified by using the existing photovoltaic module 1 for temperature adjustment.

[0092] In some embodiments, as Figure 1 As shown, the temperature control system based on the photovoltaic module also includes a four-way reversing valve 2 and a compressor 3. The first port 31 of the compressor 3 is connected to the first outlet 13 of the first flow path 11 through the four-way reversing valve 2. The second port 32 of the compressor 3 is connected to the first inlet 12 of the first flow path 11 through the four-way reversing valve 2 and the heat storage component 6 or the cold storage component 7.

[0093] In the heat storage mode, the compressor 3 performs work in the forward direction; in the cold storage mode, the compressor 3 performs work in the reverse direction.

[0094] The four-way reversing valve 2 has ports A, B, C, and D. Port A of the four-way reversing valve 2 is connected to the first outlet 13 of the first flow path 11 of the photovoltaic module 1, port B of the four-way reversing valve 2 is connected to the first port 31 of the compressor 3, port C of the four-way reversing valve 2 is connected to the second inlet 63 of the second flow path 61 of the thermal storage component 6, and the third inlet 73 of the third flow path 71 of the cold storage component 7, and port D of the four-way reversing valve 2 is connected to the second port 32 of the compressor 3. Furthermore, the second outlet 64 of the second flow path 61 of the thermal storage component 6, and the third outlet 74 of the third flow path 71 of the cold storage component 7 are in communication with the first inlet 12 of the first flow path 11 of the photovoltaic module 1.

[0095] Specifically, when the photovoltaic module 1 generates electricity during the day, it is in the heat storage mode, the first on-off valve group 4 is in the on state, the second on-off valve group 5 is in the off state, the AB port of the four-way reversing valve 2 is on, the CD port is on, and the liquid first refrigerant flows out from the first outlet 13 of the first flow path 11, and passes through the AB port in sequence and then enters the compressor 3 from the first port 31 for compression. The compressor 3 performs forward work, and the high-temperature gaseous refrigerant flowing out from the second port 32 passes through the DC port in sequence and enters the second flow path 61 of the heat storage component 6. After the high-temperature gaseous refrigerant exchanges heat with the heat storage component 6, its temperature is reduced and converted into liquid, and returns to the first flow path 11 through the first inlet 12 for circulation. During this process, heat is stored in the heat storage component 6.

[0096] When the photovoltaic component 1 is not generating electricity at night, it is in the cold storage mode, the first on-off valve group 4 is in the disconnected state, the second on-off valve group 5 is in the connected state, the AD port of the four-way reversing valve 2 is turned on, the BC port is turned on, and the liquid first refrigerant flows out from the first outlet 13 of the first flow path 11, and passes through the AD port in sequence and then enters the compressor 3 from the second port 32 for compression. The compressor 3 performs reverse work (i.e., the rotor reverses), and the liquid refrigerant with a lower temperature flowing out from the first port 31 passes through the BC port in sequence and enters the third flow path 71 of the cold storage component 7. The liquid refrigerant with a lower temperature exchanges heat with the cold storage component 7, and its temperature rises, taking away the heat in the cold storage component 7, and returns to the first flow path 11 through the first inlet 12 for circulation. The first refrigerant quickly dissipates heat through long-air radiation. During this process, the cold energy is stored in the cold storage component 7.

[0097] In the heat storage mode and the cold storage mode, the flow directions of the first refrigerant in the compressor 3 are opposite. In the heat storage mode, the first refrigerant enters from the first port 31 , and in the cold storage mode, the first refrigerant enters from the second port 32 .

[0098] By providing a compressor 3, this embodiment can achieve energy conversion through the work of compressor 3, thereby increasing the heat stored in the thermal storage component 6 or the cold stored in the cold storage component 7 to meet the temperature regulation requirements of the target temperature-controlled component without the need for other additional temperature control equipment. Furthermore, through the forward and reverse work of compressor 3, the heat storage requirements of the thermal storage component 6 and the cold storage requirements of the cold storage component 7 can be simultaneously met. Furthermore, by providing a four-way reversing valve 2, the connection method of the external pipeline can be maintained, and the switching requirements of the internal flow path between the thermal storage mode and the cold storage mode can be achieved by internal switching of the four-way reversing valve 2.

[0099] In some embodiments, as Figure 1 As shown, the temperature control system based on photovoltaic modules also includes:

[0100] The first temperature detection component 67 is configured to detect the temperature of the heat storage component 6; wherein the first on-off valve group 4 is configured to be in an off state when the temperature detection value of the heat storage component 6 is higher than the first temperature threshold; and / or

[0101] The second temperature detection component 77 is configured to detect the temperature of the cold storage component 7; wherein the second on-off valve group 5 is configured to be in the off state when the temperature detection value of the cold storage component 7 is lower than the second temperature threshold.

[0102] For example, the first temperature detection component 67 and the second temperature detection component 77 may be temperature sensors. The second temperature threshold is lower than the first temperature threshold.

[0103] This embodiment detects the temperature of the heat storage component 6 in real time in the heat storage mode, and stops the heat storage component 6 when the temperature exceeds a first temperature threshold. It also detects the temperature of the cold storage component 7 in real time in the cold storage mode, and stops the cold storage component 7 when the temperature is lower than a second temperature threshold. At this time, the stored heat or cold is sufficient for the target temperature control component to use, and continuing to store more heat or cold will also cause waste. Stopping heat storage or cold storage in time can reduce the system burden and save system energy consumption.

[0104] In some embodiments, as Figure 3 、 Figure 4 and Figure 6 The heat storage component 6 is provided with a fourth flow path 62, the cold storage component 7 is provided with a fifth flow path 72, and the target temperature control component is provided with a sixth flow path 235 for the flow of the second refrigerant. The temperature control system based on the photovoltaic module also includes:

[0105] The third on-off valve group 8 is configured to control the on-off of the connecting flow path between the fourth flow path 62 and the sixth flow path 235; and

[0106] The fourth on-off valve group 9 is configured to control the on-off of the connecting flow path between the fifth flow path 72 and the sixth flow path 235;

[0107] Among them, when the target temperature control component needs to be heated, the third on-off valve group 8 is in the on state and the fourth on-off valve group 9 is in the off state; when the target temperature control component needs to be cooled, the third on-off valve group 8 is in the off state and the fourth on-off valve group 9 is in the on state.

[0108] For example, Figure 5 As shown, the target temperature control component can be an energy storage battery 20, which includes a housing 21, a temperature control component 23, and a battery layer. The temperature control component 23 and the battery layer are arranged within the housing 21. The battery layer includes a plurality of battery cells 22 arranged side by side. The plurality of battery cells 22 are connected in series, in parallel, or in mixed connection via electrical connectors 24. The temperature control component 23 is used to cool the battery layer. The temperature control component 23 can be located at the bottom of the battery layer or between adjacent battery layers. A sixth flow path 235 for the flow of the second refrigerant is provided within the temperature control component 23. Optionally, the temperature control component 23 can also be located outside the housing 21.

[0109] like Figure 6 As shown, the temperature regulating component 23 includes a shell 233, and a plurality of spaced partitions 234 are provided inside the shell 233. The sixth flow path 235 adopts a honeycomb arrangement inside the temperature regulating component 23, that is, it is arranged in the form of multiple inclined cross lines, or can also be arranged in a coil.

[0110] This embodiment, by providing a third on-off valve group 8 and a fourth on-off valve group 9, can flexibly control the states of the two on-off valve groups according to the temperature requirements of the target temperature-controlled component, so that the target temperature-controlled component operates at an appropriate temperature. The on-off of the third on-off valve group 8 and the fourth on-off valve group 9 is used to control whether the heat in the heat storage component 6 or the cold in the cold storage component 7 is released to the target temperature-controlled component, while the first on-off valve group 4 and the second on-off valve group 5 are used to control whether heat storage or cold storage is performed. These two processes are independent of each other. The heat storage or cold storage process and the heating or cooling process of the target temperature-controlled component can be carried out simultaneously, or the target temperature-controlled component can be heated or cooled when needed after storing heat or cold.

[0111] In some embodiments, as Figure 5 As shown, the temperature control system based on photovoltaic modules also includes:

[0112] a third temperature detection component 25 configured to detect the temperature of a target temperature-controlled component;

[0113] Among them, when the temperature detection value of the target temperature control component is lower than the lower limit of the heating temperature, the third on-off valve group 8 is in the on state and the fourth on-off valve group 9 is in the off state; when the temperature detection value of the target temperature control component is higher than the upper limit of the heating temperature, the third on-off valve group 8 and the fourth on-off valve group 9 are both in the off state; the upper limit of the heating temperature is greater than the lower limit of the heating temperature.

[0114] The third temperature detection component 25 may be a temperature sensor or the like.

[0115] Taking the energy storage battery 20 as an example, the data acquisition interface of the energy storage battery 20 monitors the battery temperature in real time. The lower and upper heating temperature limits can be pre-set based on actual operating conditions. The lower heating temperature limit can be the temperature value at which the energy storage battery 20 is in a low temperature state and affects its operating performance. In this case, heating is required by the heat storage component 6. After heating to a certain temperature, the energy storage battery 20 can operate normally and a certain amount of internal heat is generated to keep it operating at an appropriate temperature. Heating can be stopped at this point, completing a heating cycle. If the temperature of the energy storage battery 20 is detected to fall below the lower heating temperature limit again, a signal is sent to restart the heating cycle.

[0116] This embodiment sets a third temperature detection component 25 to detect the temperature of the target temperature control component, and can timely determine the time to heat and stop heating the target temperature control component using the heat storage component 6, so that the target temperature control component is at a suitable operating temperature, thereby improving the performance, working reliability and safety of the target temperature control component.

[0117] For example, when the target temperature-controlled component is the energy storage battery 20, heating with the heat storage component 6 can prevent poor starting due to too low a temperature or excessive power consumption, thereby improving the charging and discharging efficiency of the energy storage battery 20 under low temperature conditions; and during the heating process, if the heating heat can meet the working requirements, the heating can be stopped in time to prevent the internal temperature of the energy storage battery 20 from rising sharply due to active heating and internal heat.

[0118] In some embodiments, the photovoltaic module-based temperature control system further includes:

[0119] a third temperature detection component 25 configured to detect the temperature of a target temperature-controlled component;

[0120] Among them, when the temperature detection value of the target temperature control component is higher than the upper limit of the cooling temperature, the third on-off valve group 8 is in the disconnected state and the fourth on-off valve group 9 is in the connected state; when the temperature detection value of the target temperature control component is lower than the lower limit of the cooling temperature, the third on-off valve group 8 and the fourth on-off valve group 9 are both in the disconnected state; the upper limit of the cooling temperature is greater than the lower limit of the cooling temperature.

[0121] Taking the energy storage battery 20 as an example, the data acquisition interface of the energy storage battery 20 monitors the battery temperature in real time. The upper and lower cooling temperature limits can be pre-set based on actual operating conditions. The upper cooling temperature limit can be the temperature value at which the energy storage battery 20 is in a high temperature state and affects its operating performance. At this time, it needs to be heated by the cold storage component 7. After cooling to a certain temperature, the energy storage battery 20 can operate normally. If cooling is continued, the temperature of the energy storage battery 20 will be too low and the charging and discharging efficiency will be low. Cooling can be stopped, and a cooling cycle is completed. If the temperature of the energy storage battery 20 is detected to be higher than the upper cooling temperature limit again, a signal is sent to restart the cooling cycle.

[0122] This embodiment sets a third temperature detection component 25 to detect the temperature of the target temperature control component, and can timely determine the time when the target temperature control component needs to be cooled or stopped using the cold storage component 7, so that the target temperature control component is at a suitable operating temperature, thereby improving the performance, working reliability and safety of the target temperature control component.

[0123] For example, when the target temperature-controlled component is the energy storage battery 20, cooling by the cold storage component 7 can prevent the ambient temperature from being too high or the heat from being too severe, which may cause low charging and discharging efficiency, and improve the reliability and safety of the working process; and during the cooling process, if the temperature is at a suitable working temperature, the cooling can be stopped in time to prevent the cooling temperature from being too low, which may cause the internal working performance of the energy storage battery 20 to decline.

[0124] In some embodiments, the connecting flow path includes: a first flow path segment and a second flow path segment, wherein the flow directions of the refrigerant in the first flow path segment and the second flow path segment are opposite;

[0125] At least one of the first on-off valve group 4, the second on-off valve group 5, the third on-off valve group 8 and the fourth on-off valve group 9 includes a two-way on-off valve, which is configured to simultaneously control the on-off of the first flow section and the second flow section in the same connecting flow path.

[0126] For example, the two-way on-off valve may be an electromagnetic control valve or the like.

[0127] Optionally, an on-off valve is provided in each of the first flow path section and the second flow path section.

[0128] This embodiment provides a two-way on-off valve in the first flow section and the second flow section of the connecting flow path. By controlling one component, the first flow section and the second flow section can be simultaneously turned on and off, which can reduce the control difficulty and improve the reliability of the on-off control of the connecting flow path.

[0129] In some embodiments, as Figure 3As shown, the heat storage component 6 is provided with an independent second flow path 61 and a fourth flow path 62, the second flow path 61 is for the flow of the first refrigerant, and the fourth flow path 62 is for the flow of the second refrigerant. The heat storage component 6 is filled with a heat transfer medium, and the heat transfer medium is used to exchange heat with the first refrigerant or the second refrigerant; and / or

[0130] like Figure 4 As shown, an independent third flow path 71 and a fifth flow path 72 are provided in the cold storage component 7. The third flow path 71 is for the flow of the first refrigerant, and the fifth flow path 72 is for the flow of the second refrigerant. The cold storage component 7 is filled with a heat transfer medium, which is used to exchange heat with the first refrigerant or the second refrigerant.

[0131] For example, the heat transfer medium can be water, a liquid, a gas, or a heat storage material. Heat storage component 6 can be a hot water storage tank, and cold storage component 7 can be a cold water storage tank. To prevent heat loss, heat storage component 6 and cold storage component 7 can be coated with an insulating layer.

[0132] In this embodiment, an independent second flow path 61 and a fourth flow path 62 are simultaneously provided in the heat storage component 6. After the first refrigerant flows through the second flow path 61 to transfer heat to the heat transfer medium, the temperature of the heat transfer medium rises to store heat. When it is necessary to heat the target temperature-controlled component, the second refrigerant flows through the fourth flow path 62 to take away the heat of the heat transfer medium and transfers the heat to the target temperature-controlled component through the sixth flow path 235 to achieve heating of the target temperature-controlled component.

[0133] By simultaneously setting up an independent third flow path 71 and a fifth flow path 72 in the cold storage component 7, the first refrigerant flows through the third flow path 71 to take away the heat in the heat transfer medium, and then dissipates heat when flowing to the photovoltaic component 1, so that the temperature of the heat transfer medium is reduced to store cold energy. When it is necessary to cool the target temperature control component, the second refrigerant flows through the fifth flow path 72 to take away the cold energy of the heat transfer medium, and transfers the cold energy to the target temperature control component through the sixth flow path 235 to achieve cooling of the target temperature control component.

[0134] In some embodiments, as Figure 3 As shown, in the first direction x, the interface of the second flow path 61 and the interface of the fourth flow path 62 are led out from different sides of the heat storage component 6, and in the second direction y perpendicular to the first direction x, the fourth outlet 66 of the fourth flow path 62 is arranged close to the second inlet 63 of the second flow path 61, and the fourth inlet 65 of the fourth flow path 62 is arranged close to the second outlet 64 of the second flow path 61; and / or

[0135] like Figure 4As shown, in the first direction x, the interface of the third flow path 71 and the interface of the fifth flow path 72 are led out from different sides of the cold storage component 7, and in the second direction y perpendicular to the first direction x, the fifth outlet 76 of the fifth flow path 72 is arranged close to the third inlet 73 of the third flow path 71, and the fifth inlet 75 of the fifth flow path 72 is arranged close to the third outlet 74 of the third flow path 71.

[0136] This embodiment allows the interface of the second flow path 61 and the interface of the fourth flow path 62 to be led out from opposite sides of the heat storage component 6, and the interface of the third flow path 71 and the interface of the fifth flow path 72 to be led out from opposite sides of the cold storage component 7, which can facilitate the connection of the circulating flow path of the first refrigerant and the circulating flow path of the second refrigerant, is conducive to the layout of the pipelines, and is also easy to distinguish when connecting the pipelines, reducing the possibility of pipeline connection errors.

[0137] Furthermore, the inlet and outlet positions of the second flow path 61 and the fourth flow path 62 are oppositely arranged in the second direction y, and the inlet and outlet positions of the third flow path 71 and the fifth flow path 72 are oppositely arranged in the second direction y. When the system is connected, it can prevent the heat storage component 6 or the cold storage component 7 from being placed in the opposite direction, resulting in incorrect pipeline connection, thereby playing a fool-proof role.

[0138] In some embodiments, the target temperature control component includes an energy storage battery 20, the energy storage battery 20 includes a temperature control component 23 and a battery layer, the temperature control component 23 is used to cool the battery layer, and a sixth flow path 235 for the flow of the second refrigerant is provided in the temperature control component 23. The distribution density of the sixth flow path 235 in the middle area of the battery layer is higher than that in the peripheral area.

[0139] For example, the sixth flow path 235 may be arranged in a honeycomb or coil configuration. The temperature regulating component 23 may be disposed at the bottom or top of a battery layer, or between adjacent battery layers. The battery layer includes a plurality of battery cells 22 .

[0140] This embodiment takes into account the poor heat dissipation of the battery cells 22 located in the central region of the energy storage battery 20 during operation. By providing a higher density of sixth flow paths 235 in this central region, a better cooling effect can be achieved through the cold storage component 7 during operation. However, when the energy storage battery 20 operates in a low-temperature environment, it primarily faces the challenge of starting at low temperatures, and after a short warm-up period, the main issue remains heat dissipation. Therefore, this arrangement improves the cooling effect of the energy storage battery 20, optimizes operating performance, and enhances operational reliability and safety, regardless of whether the energy storage battery 20 operates in a low-temperature environment or a high-temperature environment.

[0141] In some embodiments, as Figure 1 As shown, the temperature control system based on photovoltaic modules further includes a circulation pump 10, which is provided on the connecting flow path and is configured to drive the flow of the first refrigerant.

[0142] This embodiment provides a circulation pump 10 to enable the first refrigerant to flow stably and continuously, so as to promptly remove the waste heat of the photovoltaic module 1 in the heat storage mode, improve the photoelectric conversion efficiency, and increase the heat storage efficiency; and promptly remove the heat in the cold storage component 7 in the cold storage mode, and dissipate the heat through the photovoltaic module 1 in a non-working state, thereby improving the cold storage efficiency.

[0143] Secondly, the present disclosure provides a control method for a temperature control system based on a photovoltaic module according to the above embodiment. In some embodiments, for example, Figure 7 As shown, including:

[0144] In the heat storage mode, the first on-off valve group 4 is in the on state, and the second on-off valve group 5 is in the off state, so that the first refrigerant absorbs the heat generated by the operation of the photovoltaic assembly 1 and flows through the heat storage component 6 to store the heat;

[0145] In the cold storage mode, the second on-off valve group 5 is in the on state, and the first on-off valve group 4 is in the off state, so that the first refrigerant flows through the cold storage component 7 to store cold energy and dissipate heat through the photovoltaic module 1;

[0146] The temperature of the target temperature-controlled component is adjusted by the heat storage component 6 or the cold storage component 7 .

[0147] Among them, the heat storage mode and the cold storage mode are selected according to whether the photovoltaic component 1 is working. The heat storage mode, the cold storage mode and the process of adjusting the temperature of the target temperature control component are independent of each other. The temperature of the target temperature control component can be adjusted during the heat storage or cold storage process, or heat storage or cold storage can be carried out first, and the temperature of the target temperature control component can be adjusted as needed later.

[0148] This embodiment can cool the photovoltaic module 1 in the heat storage mode to improve the photoelectric conversion efficiency, thereby improving the power generation efficiency. It can also store the waste heat generated during the operation of the photovoltaic module 1 to heat the target temperature control component when needed to keep it at a suitable operating temperature. It can meet the performance requirements of low-temperature operation and also reasonably utilize the waste heat of the photovoltaic module 1 during operation to improve resource utilization.

[0149] Moreover, in the cold storage mode, the non-working photovoltaic module 1 can be used as a radiator to store the cold energy in the cold storage component 7 through the flow of the first refrigerant. When necessary, the target temperature control component can be cooled to a suitable working temperature. When the ambient temperature is high or the internal heat is large, the performance requirements of high-temperature operation can be met.

[0150] In some embodiments, as Figure 7 As shown, the control method further includes:

[0151] Detecting the temperature of the heat storage member 6 by the first temperature detection member 67;

[0152] When the temperature detection value of the heat storage component 6 is higher than the first temperature threshold, the first on-off valve group 4 is in the off state; and / or

[0153] Detecting the temperature of the cold storage component 7 by the second temperature detection component 77;

[0154] When the temperature detection value of the cold storage member 7 is lower than the second temperature threshold, the second on-off valve group 5 is placed in the closed state.

[0155] The second temperature threshold is lower than the first temperature threshold.

[0156] This embodiment detects the temperature of the heat storage component 6 in real time in the heat storage mode, and stops the heat storage component 6 when the temperature exceeds a first temperature threshold. It also detects the temperature of the cold storage component 7 in real time in the cold storage mode, and stops the cold storage component 7 when the temperature is lower than a second temperature threshold. At this time, the stored heat or cold is sufficient for the target temperature control component to use, and continuing to store more heat or cold will also cause waste. Stopping heat storage or cold storage in time can reduce the system burden and save system energy consumption.

[0157] In some embodiments, as Figure 8 As shown, regulating the temperature of the target temperature control component by the heat storage component 6 includes:

[0158] Detecting the temperature of the target temperature-controlled component by the first temperature detecting component 67;

[0159] When the temperature detection value of the target temperature control component is lower than the lower limit of the heating temperature, the third on-off valve group 8 is turned on and the fourth on-off valve group 9 is turned off to enter the heating mode;

[0160] When the temperature detection value of the target temperature control component is higher than the upper limit of the heating temperature, the third on-off valve group 8 and the fourth on-off valve group 9 are both in the off state to exit the heating mode; the upper limit of the heating temperature is greater than the lower limit of the heating temperature.

[0161] This embodiment sets a third temperature detection component 25 to detect the temperature of the target temperature control component, and can timely determine the time to heat and stop heating the target temperature control component using the heat storage component 6, so that the target temperature control component is at a suitable operating temperature, thereby improving the performance, working reliability and safety of the target temperature control component.

[0162] For example, when the target temperature-controlled component is the energy storage battery 20, heating with the heat storage component 6 can prevent poor starting due to too low a temperature or excessive power consumption, thereby improving the charging and discharging efficiency of the energy storage battery 20 under low temperature conditions; and during the heating process, if the heating heat can meet the working requirements, the heating can be stopped in time to prevent the internal temperature of the energy storage battery 20 from rising sharply due to active heating and internal heat.

[0163] In some embodiments, as Figure 9 As shown, regulating the temperature of the target temperature control component by the cold storage component 7 includes:

[0164] Detecting the temperature of the target temperature-controlled component by the first temperature detecting component 67;

[0165] When the temperature detection value of the target temperature control component is higher than the cooling temperature upper limit, the third on-off valve group 8 is in the off state and the fourth on-off valve group 9 is in the on state to enter the cooling mode;

[0166] When the temperature detection value of the target temperature control component is lower than the lower limit of the cooling temperature, the third on-off valve group 8 and the fourth on-off valve group 9 are both in the off state to exit the cooling mode; the upper limit of the cooling temperature is greater than the lower limit of the cooling temperature.

[0167] This embodiment sets a third temperature detection component 25 to detect the temperature of the target temperature control component, and can timely determine the time when the target temperature control component needs to be cooled or stopped using the cold storage component 7, so that the target temperature control component is at a suitable operating temperature, thereby improving the performance, working reliability and safety of the target temperature control component.

[0168] For example, when the target temperature-controlled component is the energy storage battery 20, cooling by the cold storage component 7 can prevent the ambient temperature from being too high or the heat from being too severe, which may cause low charging and discharging efficiency, and improve the reliability and safety of the working process; and during the cooling process, if the temperature is at a suitable working temperature, the cooling can be stopped in time to prevent the cooling temperature from being too low, which may cause the internal working performance of the energy storage battery 20 to decline.

[0169] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art will understand that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. Those skilled in the art will understand that the above embodiments may be modified or some technical features may be replaced with equivalents without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A temperature control system based on photovoltaic modules, characterized in that: include: A photovoltaic module (1) has a first flow path (11) on its back for the flow of a first refrigerant; A heat storage component (6) is used to store heat and has a second flow path (61) therein; A cold storage component (7) is used to store cold energy and is provided with a third flow path (71) therein; a first on-off valve group (4) for controlling the on-off of the connecting flow path between the first flow path (11) and the second flow path (61); a second on-off valve group (5) for controlling the on-off of the connecting flow path between the first flow path (11) and the third flow path (71); and The target temperature control component is used to adjust the temperature through the heat storage component (6) or the cold storage component (7).

2. The temperature control system based on photovoltaic modules according to claim 1, characterized in that: The target temperature control component includes an energy storage battery (20).

3. The temperature control system based on photovoltaic modules according to claim 1, characterized in that: The invention also includes a four-way reversing valve (2) and a compressor (3), wherein a first port (31) of the compressor (3) is communicated with a first outlet (13) of the first flow path (11) through the four-way reversing valve (2), and a second port (32) of the compressor (3) is communicated with a first inlet (12) of the first flow path (11) after passing through the heat storage component (6) or the cold storage component (7) through the four-way reversing valve (2).

4. The temperature control system based on photovoltaic modules according to claim 1, characterized in that: Also includes: a first temperature detection component (67) configured to detect the temperature of the heat storage component (6); wherein the first on-off valve group (4) is configured to be in an off state when the temperature detection value of the heat storage component (6) is higher than a first temperature threshold; and / or The second temperature detection component (77) is configured to detect the temperature of the cold storage component (7); wherein the second on-off valve group (5) is configured to be in an off state when the temperature detection value of the cold storage component (7) is lower than a second temperature threshold.

5. The temperature control system based on photovoltaic modules according to claim 1, characterized in that: The heat storage component (6) is provided with a fourth flow path (62), the cold storage component (7) is provided with a fifth flow path (72), the target temperature control component is provided with a sixth flow path (235) for the flow of a second refrigerant, and the temperature control system based on the photovoltaic module further includes: a third on-off valve group (8) configured to control the on-off of the connecting flow path between the fourth flow path (62) and the sixth flow path (235); and The fourth on-off valve group (9) is configured to control the on-off of the connecting flow path between the fifth flow path (72) and the sixth flow path (235).

6. The temperature control system based on photovoltaic modules according to claim 5, characterized in that: Also includes: The third temperature detection component (25) is configured to detect the temperature of the target temperature-controlled component.

7. The temperature control system based on photovoltaic modules according to claim 5, characterized in that: Also includes: The third temperature detection component (25) is configured to detect the temperature of the target temperature-controlled component.

8. The temperature control system based on photovoltaic modules according to claim 5, characterized in that: The connecting flow path includes: a first flow path section and a second flow path section, wherein the flow directions of the refrigerant in the first flow path section and the second flow path section are opposite; At least one of the first on-off valve group (4), the second on-off valve group (5), the third on-off valve group (8) and the fourth on-off valve group (9) includes a two-way on-off valve, and the two-way on-off valve is configured to simultaneously control the on-off of the first flow path section and the second flow path section in the same connecting flow path.

9. The temperature control system based on photovoltaic modules according to any one of claims 1 to 8, characterized in that: The heat storage component (6) is provided with an independent second flow path (61) and a fourth flow path (62), the second flow path (61) is for the flow of the first refrigerant, and the fourth flow path (62) is for the flow of the second refrigerant, the heat storage component (6) is filled with a heat transfer medium, and the heat transfer medium is used for heat exchange with the first refrigerant or the second refrigerant; and / or The cold storage component (7) is provided with an independent third flow path (71) and a fifth flow path (72), wherein the third flow path (71) is for the flow of a first refrigerant, and the fifth flow path (72) is for the flow of a second refrigerant. The cold storage component (7) is filled with a heat transfer medium, and the heat transfer medium is used for heat exchange with the first refrigerant or the second refrigerant.

10. The temperature control system based on photovoltaic modules according to claim 9, characterized in that: In a first direction (x), the interface of the second flow path (61) and the interface of the fourth flow path (62) are led out from different sides of the heat storage component (6); in a second direction (y) perpendicular to the first direction (x), the fourth outlet (66) of the fourth flow path (62) is arranged close to the second inlet (63) of the second flow path (61), and the fourth inlet (65) of the fourth flow path (62) is arranged close to the second outlet (64) of the second flow path (61); and / or In a first direction (x), an interface of the third flow path (71) and an interface of the fifth flow path (72) are led out from different sides of the cold storage component (7); in a second direction (y) perpendicular to the first direction (x), a fifth outlet (76) of the fifth flow path (72) is arranged close to a third inlet (73) of the third flow path (71), and a fifth inlet (75) of the fifth flow path (72) is arranged close to a third outlet (74) of the third flow path (71).

11. The temperature control system based on photovoltaic modules according to claim 1, characterized in that: The target temperature control component includes an energy storage battery (20), the energy storage battery (20) includes a temperature regulating component (23) and a battery layer, the temperature regulating component (23) is used to cool the battery layer, a sixth flow path (235) for the flow of a second refrigerant is provided in the temperature regulating component (23), and the distribution density of the sixth flow path (235) in the middle area of the battery layer is higher than that in the peripheral area.

12. The temperature control system based on photovoltaic modules according to any one of claims 1 to 8, characterized in that: It also includes a circulation pump (10), which is arranged on the connecting flow path and is configured to drive the first refrigerant to flow.

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