A method and system for temperature control of a mid-ventilated photovoltaic Trombe wall

Abstract

This invention relates to the field of temperature control, specifically to a method and system for temperature control of a centrally located ventilated photovoltaic Transylvanian wall. By installing double-glass photovoltaic modules between the outer photovoltaic glass cover and the thermal storage brick wall, a target operating mode is determined based on the indoor temperature, the photovoltaic module temperature, and the equivalent outdoor temperature. In internal circulation mode, the outdoor upper and lower baffles are closed, while the indoor upper and lower baffles are opened, allowing indoor air to circulate, heat, and then return to the room via the internal ventilation channels. In external circulation mode, the indoor upper and lower baffles are closed, while the outdoor upper and lower baffles are opened, allowing outdoor air to dissipate heat over the surface of the double-glass photovoltaic modules before being exhausted outdoors. In closed mode, all baffles are closed, creating a closed cavity between the double-glass photovoltaic modules and the thermal storage brick wall. This achieves integrated photovoltaic power generation and building heating, solving the problem of the traditional single function of Transylvanian walls.

Description

Technical Field

[0001] This invention relates to the field of temperature control, specifically to a method and system for temperature control of a centrally located ventilated photovoltaic Transbryne wall. Background Technology

[0002] The Transbry wall is a green, energy-efficient wall structure that utilizes solar energy. It primarily consists of an outer glass panel, an inner heavy-duty thermal storage wall, and an intermediate air gap. Ventilation structures are typically installed between the glass and the thermal storage wall. Traditional Transbry walls are mainly used for building ventilation and winter heating, but they have significant technical limitations: in summer, under non-sunny conditions, the thermal pressure ventilation effect is weak, easily causing indoor overheating and reducing living comfort; the wall's insulation performance in winter still has room for improvement; and traditional vents are mostly fixed structures, unable to flexibly adjust ventilation volume according to indoor and outdoor temperature differences and solar radiation intensity, resulting in poor adaptability to various operating conditions.

[0003] Existing patent CN202021532282.7 discloses an improved Transb wall, which consists of a heat storage wall, double-layer glass and foldable glass. Ventilation openings and baffles are set above and below the double-layer glass and the heat storage wall, forming an air channel inside. By manually adjusting the tilt angle of the foldable glass, the cross-section of the air channel is changed and the airflow is enhanced, so as to achieve heating in winter and heat dissipation in summer. However, this solution relies entirely on manual operation to adjust the angle of the baffle and the glass, and has a low degree of intelligence.

[0004] The existing patent CN201620596661.X sets up a substrate, a phase change temperature control pipe, a low-emissivity layer and a protective decorative layer inside the wall, reserves ventilation channels, and installs temperature sensors at the phase change temperature control pipe and the protective layer. The ventilation equipment is started and stopped by an intelligent controller according to the temperature difference, realizing the switching between heat storage and heat dissipation modes, which can effectively reduce air conditioning energy consumption; however, this solution only focuses on building insulation and passive temperature control, and the overall energy utilization rate is limited. Summary of the Invention

[0005] The purpose of this invention is to provide a method and system for temperature control of a centrally located ventilated photovoltaic Transbryne wall, which solves the problems in the prior art.

[0006] This invention is achieved through the following technical solution:

[0007] In a first aspect, embodiments of the present invention provide a method for temperature control of a centrally ventilated photovoltaic Transylvanian wall, applied to a centrally ventilated photovoltaic Transylvanian wall temperature control system. The system includes: a double-glass photovoltaic module 2 disposed between an outer photovoltaic-specific glass cover plate 1 and a heat storage brick wall 3, forming an internal ventilation channel 5 between the double-glass photovoltaic module 2 and the heat storage brick wall 3; an indoor upper baffle 11 and an indoor lower baffle 12 disposed at the top and bottom of the internal ventilation channel 5; an outdoor upper baffle 9 and an outdoor lower baffle 10 disposed outside the double-glass photovoltaic module 2; and a first temperature sensor 8, a second temperature sensor 7, and a third temperature sensor 6 for respectively collecting indoor temperature T1, photovoltaic module temperature T2, and outdoor equivalent temperature T3; the method includes:

[0008] The target operating mode is determined based on the indoor temperature collected by the first temperature sensor 8, the photovoltaic module temperature collected by the second temperature sensor 7, and the outdoor equivalent temperature collected by the third temperature sensor 6.

[0009] If the target working mode is the internal circulation mode, then the outdoor upper baffle 9 and outdoor lower baffle 10 are closed, and the indoor upper baffle 11 and indoor lower baffle 12 are opened, so that the indoor air is circulated and heated through the internal ventilation channel 5 and then flows back into the room.

[0010] If the target working mode is the external circulation mode, then the indoor upper baffle 11 and indoor lower baffle 12 are closed, and the outdoor upper baffle 9 and outdoor lower baffle 10 are opened, so that the outdoor air flows through the surface of the double-glass photovoltaic module 2 to dissipate heat and is then discharged to the outside.

[0011] If the target working mode is the closed mode, then all baffles are closed to form a closed cavity between the double-glass photovoltaic module 2 and the heat storage brick wall 3.

[0012] Preferably, determining the target operating mode based on the indoor temperature collected by the first temperature sensor 8, the photovoltaic module temperature collected by the second temperature sensor 7, and the outdoor equivalent temperature collected by the third temperature sensor 6 includes:

[0013] The judgment is made based on the temperature of the photovoltaic module of the second temperature sensor 7 and the preset overheating threshold.

[0014] When the temperature of the photovoltaic module exceeds the preset overheating threshold, the target operating mode is determined to be the external circulation mode.

[0015] Preferably, the method further includes:

[0016] When the temperature of the photovoltaic module does not exceed the preset overheating threshold, the judgment is made based on the indoor temperature of the first temperature sensor 8 and the preset upper limit threshold of the indoor temperature, wherein the preset overheating threshold is greater than the preset upper limit threshold of the indoor temperature.

[0017] When the indoor temperature exceeds the preset indoor temperature upper limit threshold, the target operating mode is determined to be the external circulation mode.

[0018] Preferably, the method further includes:

[0019] When the indoor temperature does not exceed the preset upper limit threshold of indoor temperature, the judgment is made based on the indoor temperature and the preset lower limit threshold of indoor temperature, wherein the preset upper limit threshold of indoor temperature is greater than the preset lower limit threshold of indoor temperature;

[0020] When the indoor temperature is lower than the preset indoor temperature lower limit threshold, the target working mode is determined to be the internal circulation mode.

[0021] Preferably, the method further includes:

[0022] When the indoor temperature is not lower than the preset indoor temperature lower limit threshold, the target working mode is determined to be the closed mode.

[0023] Preferably, when the target working mode is the inner loop mode, the method further includes:

[0024] The temperature difference value is obtained based on the difference between the temperature of the photovoltaic module and the indoor temperature;

[0025] The judgment is made based on the temperature difference value and the preset waste heat effectiveness threshold.

[0026] When the temperature difference is greater than the preset waste heat effectiveness threshold, the internal circulation mode is maintained. When the temperature difference is less than or equal to the preset waste heat effectiveness threshold, the outdoor upper baffle 9, the outdoor lower baffle 10, the indoor upper baffle 11, and the indoor lower baffle 12 are all closed, and the internal circulation mode is exited.

[0027] Preferably, the method further includes:

[0028] The determination is made based on the outdoor equivalent temperature and the preset extreme low temperature threshold.

[0029] When the outdoor equivalent temperature is lower than the preset extreme low temperature threshold, the external circulation mode is prohibited from being started, wherein the preset extreme low temperature threshold is less than the preset indoor temperature lower limit threshold.

[0030] Preferably, the system further includes a drive mechanism, which includes an automatic controller 13, an automatic controller 2 14, an electric push rod 15, and an electric push rod 2 16. The automatic controller 13 and the automatic controller 2 14 are electrically connected to the electric push rod 15 and the electric push rod 2 16, respectively. The electric push rod 15 is drivenly connected to the outdoor upper baffle 9 and the indoor upper baffle 11, and the electric push rod 2 16 is drivenly connected to the outdoor lower baffle 10 and the indoor lower baffle 12.

[0031] The control of closing the outdoor upper baffle 9 and outdoor lower baffle 10, and opening the indoor upper baffle 11 and indoor lower baffle 12 includes:

[0032] Based on the target working mode being the internal circulation mode, the automatic controller 13 is controlled to output a first drive signal to the electric push rod 15, and the automatic controller 214 is controlled to output a first drive signal to the electric push rod 216.

[0033] According to the first driving signal, the electric push rod 15 is controlled to extend or retract, so as to drive the outdoor upper baffle 9 to rotate to the closed position and drive the indoor upper baffle 11 to rotate to the open position. According to the first driving signal, the electric push rod 16 is controlled to extend or retract, so as to drive the outdoor lower baffle 10 to rotate to the closed position and drive the indoor lower baffle 12 to rotate to the open position.

[0034] The control of closing the indoor upper baffle 11 and indoor lower baffle 12, and opening the outdoor upper baffle 9 and outdoor lower baffle 10 includes:

[0035] Based on the target working mode being the external circulation mode, the automatic controller 13 is controlled to output a second drive signal to the electric push rod 15, and the automatic controller 214 is controlled to output a second drive signal to the electric push rod 216.

[0036] According to the second drive signal, the electric push rod 15 is controlled to extend or retract, so as to drive the indoor upper baffle 11 to rotate to the closed position and drive the outdoor upper baffle 9 to rotate to the open position. According to the second drive signal, the electric push rod 16 is controlled to extend or retract, so as to drive the indoor lower baffle 12 to rotate to the closed position and drive the outdoor lower baffle 10 to rotate to the open position.

[0037] The control of closing all baffles includes:

[0038] Based on the target working mode being the closed mode, the automatic controller 13 is controlled to output a third drive signal to the electric push rod 15, and the automatic controller 214 is controlled to output a third drive signal to the electric push rod 216.

[0039] The electric push rod 15 is extended or retracted according to the third drive signal to drive the outdoor upper baffle 9 and the indoor upper baffle 11 to rotate to the closed position. The electric push rod 16 is extended or retracted according to the third drive signal to drive the outdoor lower baffle 10 and the indoor lower baffle 12 to rotate to the closed position.

[0040] Secondly, embodiments of the present invention provide a centrally located ventilated photovoltaic Transbryne wall temperature control system, comprising: a double-glass photovoltaic module 2 disposed between an outer photovoltaic-specific glass cover plate 1 and a heat storage brick wall 3, wherein an internal ventilation channel 5 is formed between the double-glass photovoltaic module 2 and the heat storage brick wall 3; an indoor upper baffle 11 and an indoor lower baffle 12 disposed at the top and bottom of the internal ventilation channel 5; an outdoor upper baffle 9 and an outdoor lower baffle 10 disposed outside the double-glass photovoltaic module 2; a first temperature sensor 8, a second temperature sensor 7, and a third temperature sensor 6 for respectively collecting indoor temperature T1, photovoltaic module temperature T2, and outdoor equivalent temperature T3; and a control unit, the control unit comprising:

[0041] The working mode module is used to determine the target working mode based on the indoor temperature collected by the first temperature sensor 8, the photovoltaic module temperature collected by the second temperature sensor 7, and the outdoor equivalent temperature collected by the third temperature sensor 6.

[0042] The first control module is used to control the outdoor upper baffle 9 and outdoor lower baffle 10 to close and the indoor upper baffle 11 and indoor lower baffle 12 to open if the target working mode is the internal circulation mode, so that the indoor air is circulated and heated through the internal ventilation channel 5 and then flows back into the room.

[0043] The second control module is used to control the indoor upper baffle 11 and indoor lower baffle 12 to close and the outdoor upper baffle 9 and outdoor lower baffle 10 to open if the target working mode is the external circulation mode, so that the outdoor air flows through the surface of the double-glass photovoltaic module 2 to dissipate heat and then is discharged to the outside.

[0044] The third control module is used to control all baffles to close if the target working mode is closed mode, so that a closed cavity is formed between the double-glass photovoltaic module 2 and the heat storage brick wall 3.

[0045] Preferably, the system further includes a drive mechanism, which includes an automatic controller 13, an automatic controller 2 14, an electric push rod 15, and an electric push rod 2 16. The automatic controller 13 and the automatic controller 2 14 are electrically connected to the electric push rod 15 and the electric push rod 2 16, respectively. The electric push rod 15 is drivenly connected to the outdoor upper baffle 9 and the indoor upper baffle 11, and the electric push rod 2 16 is drivenly connected to the outdoor lower baffle 10 and the indoor lower baffle 12.

[0046] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0047] By installing double-glass photovoltaic modules between the outer photovoltaic glass cover and the thermal storage brick wall, solar radiation, after penetrating the outer photovoltaic glass cover, is partially converted into electrical energy, while the remaining portion passes through the transparent gaps in the double-glass photovoltaic modules and is converted into heat energy, which is then stored in the thermal storage brick wall. This achieves integrated photovoltaic power generation and building heating, solving the problem of the traditional Transb wall's single function. Temperature sensors—a first temperature sensor, a second temperature sensor, and a third temperature sensor—arranged on the surface of the thermal storage brick wall, the center of the back panel of the double-glass photovoltaic modules, and the indoor surface of the outer photovoltaic glass cover, respectively collect indoor temperature, photovoltaic module temperature, and room temperature. The external equivalent temperature control unit makes a comprehensive decision on the target operating mode based on three sets of temperature data. This makes the switching between internal circulation heating mode, external circulation heat dissipation mode and closed insulation mode more in line with the actual thermal environment changes in high-altitude cold regions, where winters are long, diurnal temperature differences are large, and climate fluctuations are drastic. By setting the temperature of the double-glass photovoltaic module exceeding the preset overheating threshold as the highest priority trigger condition for the external circulation mode, outdoor air is forced to flow through the surface of the double-glass photovoltaic module for wind cooling, so that the double-glass photovoltaic module can be restored to the high-efficiency operating temperature range in a timely manner. This ensures indoor thermal comfort while also taking into account the photovoltaic power generation benefits and the module's lifespan. Attached Figure Description

[0048] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0049] Figure 1 A schematic flowchart illustrating the temperature control method for a centrally located ventilated photovoltaic Transbryne wall provided by this invention;

[0050] Figure 2 This is a schematic diagram of the structure of the centrally located ventilated photovoltaic Transbryne wall temperature control system provided by the present invention;

[0051] Figure 3 This is a schematic diagram of the structure under the internal circulation mode provided by the present invention;

[0052] Figure 4 This is a schematic diagram of the structure under the external circulation mode provided by the present invention;

[0053] Figure 5 This is an example control flowchart provided by the present invention;

[0054] Figure 6 A cross-sectional view of the electric linear actuator in its working state provided by the present invention;

[0055] Figure 7 Top view of the centrally located ventilated photovoltaic Transbryne wall temperature control system provided by the present invention;

[0056] The attached diagram shows the markings and corresponding component names:

[0057] 1. Photovoltaic-specific glass cover plate; 2. Double-glass photovoltaic module; 3. Thermal storage brick wall; 4. External ventilation channel; 5. Internal ventilation channel; 6. First temperature sensor; 7. Second temperature sensor; 8. Third temperature sensor; 9. Outdoor upper baffle; 10. Outdoor lower baffle; 11. Indoor upper baffle; 12. Indoor lower baffle; 13. Automatic controller one; 14. Automatic controller two; 15. Electric push rod one; 16. Electric push rod two. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0059] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0060] It should be noted that all actions involving the acquisition of signals, information, or data in this invention are carried out in compliance with the relevant data protection laws and regulations of the locality and with authorization from the owner of the relevant device.

[0061] Example 1

[0062] Please see Figure 1 This invention provides a method for temperature control of a centrally ventilated photovoltaic Transylvanian wall system, applicable to such a system. The system includes: a double-glass photovoltaic module 2 positioned between an outer photovoltaic glass cover plate 1 and a heat storage brick wall 3, forming an internal ventilation channel 5 between the double-glass photovoltaic module 2 and the heat storage brick wall 3; an indoor upper baffle 11 and an indoor lower baffle 12 positioned at the top and bottom of the internal ventilation channel 5; an outdoor upper baffle 9 and an outdoor lower baffle 10 positioned outside the double-glass photovoltaic module 2; and a first temperature sensor 8, a second temperature sensor 7, and a third temperature sensor 6 for respectively collecting indoor temperature T1, photovoltaic module temperature T2, and outdoor equivalent temperature T3.

[0063] Specifically, such as Figure 2 As shown, the system consists of an outer photovoltaic-specific glass cover plate 1, an outer ventilation duct 4, a double-glass photovoltaic module 2, an inner ventilation duct 5, a heat storage brick wall 3, an outdoor upper baffle 9, an indoor upper baffle 11, an outdoor lower baffle 10, an indoor lower baffle 12, a third temperature sensor 6, a second temperature sensor 7, a first temperature sensor 8, an automatic controller 13, an automatic controller 2 14, an electric push rod 15, and an electric push rod 2 16.

[0064] The outer photovoltaic-specific glass cover plate 1 serves as the outermost protective structure of the system, possessing high light transmittance, wind and rain protection, and heat insulation properties, ensuring that solar radiation can efficiently penetrate into the system.

[0065] The double-glass photovoltaic module 2 is positioned between the outer photovoltaic-specific glass cover plate 1 and the thermal storage brick wall 3, and is encapsulated using a lamination process. The double-glass photovoltaic module 2 contains 144 monocrystalline silicon solar cells (6×24), with a cell coverage rate of 60%. Both sides of the double-glass photovoltaic module 2 use high-transmittance, anti-reflective coated tempered glass, and a photovoltaic connector is connected to the back of the module for connecting to an external circuit system to output power.

[0066] The thermal storage brick wall 3 is located at the innermost part of the system. It is constructed with bricks that meet the national standards for cold regions and has a large thermal inertia. It is used to absorb and store the solar heat energy after penetrating the double-glass photovoltaic module 2, and slowly release the heat energy into the room at night or during low-temperature periods to maintain a stable indoor temperature.

[0067] The external ventilation channel 4 is located between the outer photovoltaic-specific glass cover plate 1 and the double-glass photovoltaic module 2.

[0068] The internal ventilation channel 5 is located between the double-glass photovoltaic module 2 and the heat storage brick wall 3, serving as a heat energy transmission and buffer channel to balance the temperature difference between the inside and outside.

[0069] The outdoor upper baffle 9 and the outdoor lower baffle 10 are located on the outside of the double-glass photovoltaic module 2; the indoor upper baffle 11 and the indoor lower baffle 12 are located at the top and bottom of the internal ventilation channel 5.

[0070] The third temperature sensor 6 is installed on the indoor side surface of the outer photovoltaic-specific glass cover plate 1 to detect the outdoor equivalent temperature T3.

[0071] The second temperature sensor 7 is attached to the center of the outer surface of the back glass of the double-glass photovoltaic module 2 to monitor the temperature T2 of the photovoltaic module in real time.

[0072] The first temperature sensor 8 is installed on the surface of the heat storage brick wall 3 on the side closest to the room, and is used to detect the indoor temperature T1.

[0073] The method includes:

[0074] S1. Determine the target operating mode based on the indoor temperature collected by the first temperature sensor 8, the photovoltaic module temperature collected by the second temperature sensor 7, and the outdoor equivalent temperature collected by the third temperature sensor 6.

[0075] Specifically, the control unit receives in real-time the indoor temperature T1 output by the first temperature sensor 8, the photovoltaic module temperature T2 output by the second temperature sensor 7, and the outdoor equivalent temperature T3 output by the third temperature sensor 6. The control unit has multiple preset temperature thresholds, corresponding to the indoor thermal comfort boundary, the photovoltaic module safe operation boundary, and the outdoor climate safety boundary, respectively. The control unit compares the indoor temperature T1 with the preset indoor temperature threshold, the photovoltaic module temperature T2 with the preset photovoltaic module temperature threshold, and the outdoor equivalent temperature T3 with the preset outdoor temperature threshold. Based on the combination of these three comparison results, it determines the target operating mode from the internal circulation mode, external circulation mode, and closed mode. The three temperature sensors are respectively located on the surface of the thermal storage brick wall 3 near the indoor side, at the center of the back of the double-glass photovoltaic module 2, and on the indoor side surface of the outer photovoltaic-specific glass cover plate 1, reflecting the indoor thermal demand status, the photovoltaic module thermal safety status, and the outdoor environmental climate status, respectively.

[0076] In some embodiments, determining the target operating mode based on the indoor temperature collected by the first temperature sensor 8, the photovoltaic module temperature collected by the second temperature sensor 7, and the outdoor equivalent temperature collected by the third temperature sensor 6 includes:

[0077] The judgment is made based on the temperature of the photovoltaic module of the second temperature sensor 7 and the preset overheating threshold.

[0078] When the temperature of the photovoltaic module exceeds the preset overheating threshold, the target operating mode is determined to be the external circulation mode.

[0079] Specifically, when determining the target operating mode, the control unit first compares the photovoltaic module temperature T2 collected by the second temperature sensor 7 with a preset overheating threshold, such as 45°C. This overheating threshold corresponds to the upper limit of the safe operating temperature for the double-glass photovoltaic module 2 to maintain high-efficiency power generation. When the photovoltaic module temperature T2 exceeds the preset overheating threshold, regardless of the numerical range of the indoor temperature T1 and the outdoor equivalent temperature T3, the target operating mode is directly determined to be the external circulation mode. The control unit then sends a drive signal corresponding to the external circulation mode, causing the indoor upper baffle 11 and indoor lower baffle 12 to close and the outdoor upper baffle 9 and outdoor lower baffle 10 to open. Outdoor air enters the external ventilation channel 4 from the outdoor lower baffle 10, flows over the surface of the double-glass photovoltaic module 2 to remove heat, and is then discharged from the outdoor upper baffle 9, thereby forcibly reducing the temperature of the double-glass photovoltaic module 2.

[0080] In some embodiments, the method further includes:

[0081] When the temperature of the photovoltaic module does not exceed the preset overheating threshold, the judgment is made based on the indoor temperature of the first temperature sensor 8 and the preset upper limit threshold of the indoor temperature, wherein the preset overheating threshold is greater than the preset upper limit threshold of the indoor temperature.

[0082] When the indoor temperature exceeds the preset indoor temperature upper limit threshold, the target operating mode is determined to be the external circulation mode.

[0083] Specifically, provided that the photovoltaic module temperature T2 does not exceed the preset overheating threshold, the control unit further compares the indoor temperature T1 collected by the first temperature sensor 8 with the preset upper limit threshold for indoor temperature, for example, 26°C. This preset overheating threshold corresponds to the upper limit of the safe operating temperature for the double-glass photovoltaic module 2 to maintain efficient power generation, and the preset upper limit threshold for indoor temperature corresponds to the upper boundary of the indoor thermal comfort temperature. The preset overheating threshold is numerically greater than the preset upper limit threshold for indoor temperature. When the control unit determines that the indoor temperature T1 exceeds the preset upper limit threshold for indoor temperature, it indicates that there is an overheating trend indoors and a need for heat dissipation in summer. The target operating mode is then determined to be the external circulation mode. The control unit then sends a control command corresponding to the external circulation mode to the drive mechanism. The indoor upper baffle 11 and indoor lower baffle 12 close, while the outdoor upper baffle 9 and outdoor lower baffle 10 open. Outdoor air enters the external ventilation channel 4 from the outdoor lower baffle 10, flows over the surface of the double-glass photovoltaic module 2 to remove heat, and is then discharged to the outside from the outdoor upper baffle 9, thus reducing the temperature of the double-glass photovoltaic module 2 while achieving indoor heat dissipation.

[0084] In some embodiments, the method further includes:

[0085] When the indoor temperature does not exceed the preset upper limit threshold of indoor temperature, the judgment is made based on the indoor temperature and the preset lower limit threshold of indoor temperature, wherein the preset upper limit threshold of indoor temperature is greater than the preset lower limit threshold of indoor temperature;

[0086] When the indoor temperature is lower than the preset indoor temperature lower limit threshold, the target working mode is determined to be the internal circulation mode.

[0087] Specifically, provided that the photovoltaic module temperature T2 does not exceed the preset overheating threshold and the indoor temperature T1 does not exceed the preset upper limit threshold for indoor temperature, the control unit further compares the indoor temperature T1 collected by the first temperature sensor 8 with the preset lower limit threshold for indoor temperature, for example, 18℃. The preset upper limit threshold for indoor temperature 26℃ corresponds to the upper boundary of the indoor thermal comfort temperature, and the preset lower limit threshold for indoor temperature 18℃ corresponds to the lower boundary of the indoor thermal comfort temperature. Furthermore, the preset upper limit threshold for indoor temperature 26℃ is numerically greater than the preset lower limit threshold for indoor temperature 18℃. When the control unit determines that the indoor temperature T1 is below 18℃, it indicates that the indoor temperature has fallen below the comfort lower limit and there is a need for winter heating, and the target operating mode is determined to be the internal circulation mode.

[0088] In some embodiments, the method further includes:

[0089] When the indoor temperature is not lower than the preset indoor temperature lower limit threshold, the target working mode is determined to be the closed mode.

[0090] Specifically, provided that the photovoltaic module temperature T2 does not exceed the preset overheating threshold and the indoor temperature T1 does not exceed the preset upper limit threshold for indoor temperature, the control unit further compares the indoor temperature T1 collected by the first temperature sensor 8 with the preset lower limit threshold for indoor temperature. When the control unit determines that the indoor temperature T1 is not lower than 18℃, combined with the previously met conditions that the photovoltaic module temperature T2 does not exceed 45℃ and the indoor temperature T1 does not exceed 26℃, that is, the indoor temperature T1 is within the comfortable range of 18℃ to 26℃, it indicates that the indoor thermal environment is within a comfortable range, with neither heating nor heat dissipation requirements, and the target operating mode is determined to be the closed mode.

[0091] In some embodiments, when the target working mode is the inner loop mode, the method further includes:

[0092] The temperature difference value is obtained based on the difference between the temperature of the photovoltaic module and the indoor temperature;

[0093] The judgment is made based on the temperature difference value and the preset waste heat effectiveness threshold.

[0094] When the temperature difference is greater than the preset waste heat effectiveness threshold, the internal circulation mode is maintained. When the temperature difference is less than or equal to the preset waste heat effectiveness threshold, the outdoor upper baffle 9, the outdoor lower baffle 10, the indoor upper baffle 11, and the indoor lower baffle 12 are all closed, and the internal circulation mode is exited.

[0095] Specifically, once the target operating mode is determined to be the internal circulation mode, the control unit continuously monitors the photovoltaic module temperature T2 collected by the second temperature sensor 7 and the indoor temperature T1 collected by the first temperature sensor 8, and subtracts the two to obtain the temperature difference value. The control unit compares this temperature difference value with a preset waste heat effectiveness threshold, which corresponds to the minimum temperature difference required for the photovoltaic waste heat to effectively provide heating; for example, the preset waste heat effectiveness threshold can be 5℃. In the internal circulation mode, indoor air enters the internal ventilation channel 5 from the lower indoor baffle 12, flows upward along the internal ventilation channel 5 past the back of the double-glass photovoltaic module 2 and the surface of the heat storage brick wall 3, is heated by convection heat transfer, and then flows back into the room from the upper indoor baffle 11. There is temperature loss during the flow of hot air. This temperature difference threshold is used to determine whether the photovoltaic module temperature is significantly higher than the indoor temperature to form a stable thermo-pressure driving force and maintain an effective heating temperature. When the control unit determines that the temperature difference value is greater than 5℃, it indicates that the waste heat of the double-glass photovoltaic module 2 is sufficient to provide effective heating heat to the room, and the control unit continues to operate in the internal circulation mode. When the control unit determines that the difference is less than or equal to 5°C, it indicates that the residual heat of the double-glass photovoltaic module 2 is insufficient to maintain effective heating. Continuing to maintain the internal circulation will cause the unheated air to enter the room or even cause the indoor heat to be lost in the reverse flow channel. The control unit then controls the outdoor upper baffle 9, outdoor lower baffle 10, indoor upper baffle 11 and indoor lower baffle 12 to all close, exiting the internal circulation mode.

[0096] In some embodiments, the method further includes:

[0097] The determination is made based on the outdoor equivalent temperature and the preset extreme low temperature threshold.

[0098] When the outdoor equivalent temperature is lower than the preset extreme low temperature threshold, the external circulation mode is prohibited from being started, wherein the preset extreme low temperature threshold is less than the preset indoor temperature lower limit threshold.

[0099] Specifically, the control unit compares the outdoor equivalent temperature T3 collected by the third temperature sensor 6 with a preset extreme low temperature threshold. This preset extreme low temperature threshold corresponds to the lowest outdoor temperature limit for the system to operate safely in extremely cold weather; for example, the preset extreme low temperature threshold can be -10℃. When the control unit determines that the outdoor equivalent temperature T3 is below -10℃, it indicates that the outdoor environment has entered an extremely cold state. If the external circulation mode is activated at this time, the extremely low temperature outdoor air will enter the external ventilation channel 4 from the lower outdoor baffle 10, flow over the surface of the double-glass photovoltaic module 2, and then be discharged from the upper outdoor baffle 9. The extremely low temperature airflow will cause the temperature inside the channel to drop sharply, and condensation may occur in the external ventilation channel 4 and the internal ventilation channel 5, causing frost damage to the system structure. At the same time, the low temperature environment formed in the external ventilation channel 4 will conduct cold energy into the room through the outer photovoltaic glass cover 1 and the double-glass photovoltaic module 2. Therefore, the control unit forcibly prohibits the activation of the external circulation mode when the outdoor equivalent temperature T3 is below -10℃ to ensure the safe and stable operation of the system in high-altitude and frigid environments.

[0100] S2. If the target working mode is the internal circulation mode, then control the outdoor upper baffle 9 and the outdoor lower baffle 10 to close, and the indoor upper baffle 11 and the indoor lower baffle 12 to open, so that the indoor air is circulated and heated through the internal ventilation channel 5 and then flows back into the room.

[0101] Specifically, such as Figure 3 As shown, after the control unit determines the target operating mode as the internal circulation mode, it sends the corresponding control command to the drive mechanism. The outdoor upper baffle 9 and outdoor lower baffle 10 move to the closed position under the action of the driving force, cutting off the connection between the external ventilation duct 4 and the outdoor air. The indoor upper baffle 11 and indoor lower baffle 12 move to the open position under the action of the driving force, and the internal ventilation duct 5 connects to the indoor air space through the bottom inlet at the indoor lower baffle 12 and the top outlet at the indoor upper baffle 11. Driven by buoyancy, indoor air enters the internal ventilation duct 5 from the indoor lower baffle 12 and moves upwards along the internal ventilation duct 5. During the flow, it undergoes convective heat exchange with the surface of the heat storage brick wall 3 and the back of the double-glass photovoltaic module 2. The heated air then flows back into the room from the indoor upper baffle 11, completing one cycle of heating.

[0102] S3. If the target working mode is the external circulation mode, then control the indoor upper baffle 11 and indoor lower baffle 12 to close, and the outdoor upper baffle 9 and outdoor lower baffle 10 to open, so that the outdoor air flows through the surface of the double-glass photovoltaic module 2 to dissipate heat and then is discharged to the outside.

[0103] Specifically, such as Figure 4As shown, after the control unit determines the target operating mode as the external circulation mode, it sends the corresponding control command to the drive mechanism. The indoor upper baffle 11 and indoor lower baffle 12 move to the closed position under the action of the driving force, cutting off the connection between the internal ventilation duct 5 and the indoor air space. The outdoor upper baffle 9 and outdoor lower baffle 10 move to the open position under the action of the driving force, and the external ventilation duct 4 connects to the outdoor atmospheric environment through the bottom inlet at the outdoor lower baffle 10 and the top outlet at the outdoor upper baffle 9. Outdoor air enters the external ventilation duct 4 from the outdoor lower baffle 10, flows upward along the external ventilation duct 4 across the front surface of the double-glass photovoltaic module 2, and carries away the heat generated by the operation of the double-glass photovoltaic module 2 through forced convection. The heated air is then discharged to the outside from the outdoor upper baffle 9.

[0104] S4. If the target working mode is the closed mode, then control all baffles to close, so that a closed cavity is formed between the double-glass photovoltaic module 2 and the heat storage brick wall 3.

[0105] Specifically, such as Figure 2 As shown, after the target operating mode is determined to be the closed mode, the control unit sends a control command corresponding to the closed mode to the drive mechanism. The outdoor upper baffle 9, outdoor lower baffle 10, indoor upper baffle 11, and indoor lower baffle 12 all move to the closed position under the action of the driving force. Air exchange between the internal ventilation duct 5 and the indoor air space is cut off, as is air exchange between the external ventilation duct 4 and the outdoor atmospheric environment. The internal ventilation duct 5 between the double-glass photovoltaic module 2 and the heat storage brick wall 3 forms a closed, static air layer. This closed air layer serves as an additional insulation layer on the outside of the heat storage brick wall 3, reducing heat loss from the indoor environment to the outside. The heat stored in the heat storage brick wall 3 during the daytime radiation period is slowly transferred inwards by thermal conduction under closed conditions, maintaining the stability of the indoor thermal environment.

[0106] In some embodiments, the system further includes a drive mechanism, which includes an automatic controller 13, an automatic controller 2 14, an electric push rod 15, and an electric push rod 2 16. The automatic controller 13 and the automatic controller 2 14 are electrically connected to the electric push rod 15 and the electric push rod 2 16, respectively. The electric push rod 15 is drivenly connected to the outdoor upper baffle 9 and the indoor upper baffle 11, and the electric push rod 2 16 is drivenly connected to the outdoor lower baffle 10 and the indoor lower baffle 12.

[0107] The control of closing the outdoor upper baffle 9 and outdoor lower baffle 10, and opening the indoor upper baffle 11 and indoor lower baffle 12 includes:

[0108] Based on the target working mode being the internal circulation mode, the automatic controller 13 is controlled to output a first drive signal to the electric push rod 15, and the automatic controller 214 is controlled to output a first drive signal to the electric push rod 216.

[0109] According to the first driving signal, the electric push rod 15 is controlled to extend or retract, so as to drive the outdoor upper baffle 9 to rotate to the closed position and drive the indoor upper baffle 11 to rotate to the open position. According to the first driving signal, the electric push rod 16 is controlled to extend or retract, so as to drive the outdoor lower baffle 10 to rotate to the closed position and drive the indoor lower baffle 12 to rotate to the open position.

[0110] The control of closing the indoor upper baffle 11 and indoor lower baffle 12, and opening the outdoor upper baffle 9 and outdoor lower baffle 10 includes:

[0111] Based on the target working mode being the external circulation mode, the automatic controller 13 is controlled to output a second drive signal to the electric push rod 15, and the automatic controller 214 is controlled to output a second drive signal to the electric push rod 216.

[0112] According to the second drive signal, the electric push rod 15 is controlled to extend or retract, so as to drive the indoor upper baffle 11 to rotate to the closed position and drive the outdoor upper baffle 9 to rotate to the open position. According to the second drive signal, the electric push rod 16 is controlled to extend or retract, so as to drive the indoor lower baffle 12 to rotate to the closed position and drive the outdoor lower baffle 10 to rotate to the open position.

[0113] The control of closing all baffles includes:

[0114] Based on the target working mode being the closed mode, the automatic controller 13 is controlled to output a third drive signal to the electric push rod 15, and the automatic controller 214 is controlled to output a third drive signal to the electric push rod 216.

[0115] The electric push rod 15 is extended or retracted according to the third drive signal to drive the outdoor upper baffle 9 and the indoor upper baffle 11 to rotate to the closed position. The electric push rod 16 is extended or retracted according to the third drive signal to drive the outdoor lower baffle 10 and the indoor lower baffle 12 to rotate to the closed position.

[0116] For example, such as Figure 5 As shown, the wall system has three operating states: winter condition, transitional season condition, and summer condition.

[0117] Winter Operating Mode: Considering the long and low-temperature winters in high-altitude, cold regions, when the first temperature sensor 8 displays T1 < 18℃ and the third temperature sensor 6 displays T3 > -10℃, the control unit adopts an internal circulation heating mode. This involves closing the outdoor upper baffle 9 and outdoor lower baffle 10, and opening the indoor upper baffle 11 and indoor lower baffle 12. At this time, solar radiation passes through the outer photovoltaic glass cover 1 to the double-glass photovoltaic module 2, where a portion is converted into electrical energy and the remaining radiant energy is converted into heat energy. The heated air rises in the internal ventilation duct 5 and flows into the room through the opened indoor upper baffle 11 and indoor lower baffle 12, directly utilizing the waste heat from the double-glass photovoltaic module 2 for indoor heating, effectively reducing the building's winter heat load. Since natural convection heating in high-altitude, cold regions relies on thermal pressure, a stable and smooth upward airflow of hot air can only be formed in the internal ventilation duct 5 if the temperature of the double-glass photovoltaic module 2 is significantly higher than the indoor temperature. Temperature loss occurs as the hot air flows through the duct, exchanges heat with the heat-storing brick wall 3, and enters the room through the air outlet. Therefore, it is necessary to simultaneously activate the residual heat effectiveness verification: the control unit sets a judgment threshold. When the second temperature sensor 7 displays T2 > T1 + 5℃, it is determined that the residual heat is sufficient and the internal circulation ventilation is maintained; if T2 ≤ T1 + 5℃, all ventilation baffles are closed to prevent cold air backflow.

[0118] Transitional Season Operating Conditions: In response to the characteristics of extreme diurnal temperature differences and significant climate fluctuations in high-altitude cold regions, during the four transitional months of April, May, September, and October each year, when the temperature is detected to be 18℃≤T1≤26℃, the control unit will close all outdoor upper baffle 9, outdoor lower baffle 10, indoor upper baffle 11, and indoor lower baffle 12. The system is in a closed insulation mode, relying on the high thermal inertia of the heat storage brick wall 3 to store and release heat, balancing the drastic diurnal temperature differences in high-altitude regions. It can maintain a stable indoor thermal environment without the need for additional ventilation and heat exchange.

[0119] Summer Operating Conditions: High-altitude, cold regions generally experience cool summers with very few extreme heat events. Indoor thermal comfort is low, and system regulation prioritizes improving photovoltaic power generation efficiency. During hot summer months or when the double-glass photovoltaic module 2 overheats (i.e., T1 > 26℃ or T2 > 45℃), the system immediately enters external circulation mode: the indoor upper baffle 11 and indoor lower baffle 12 are closed, while the outdoor upper baffle 9 and outdoor lower baffle 10 are opened. Cool outdoor air enters the external ventilation duct 4 through the outdoor lower baffle 10, flowing upwards across the back of the double-glass photovoltaic module 2, rapidly carrying away the large amount of excess heat generated during photovoltaic cell operation. The heated air is then exhausted outdoors through the outdoor upper baffle 9, thus forcibly reducing the temperature of the double-glass photovoltaic module 2, restoring the cell temperature to near its optimal operating temperature, and improving photovoltaic power generation efficiency. The third temperature sensor 6 can not only perform seasonal operating condition corrections by monitoring the outdoor equivalent temperature T3, but also provide antifreeze protection for the system when extreme low temperatures occur in winter. That is, when T3 < -10℃, the control unit forcibly prohibits the start of the external circulation mode to prevent cold outdoor air from flowing back into the flow channel and causing icing under extreme low temperatures. At the same time, it prevents a large amount of indoor heat loss and ensures the safe and stable operation of the system in high-altitude and frigid environments.

[0120] Example 2

[0121] Please see Figure 2 This invention provides a centrally located ventilated photovoltaic Transbryne wall temperature control system, comprising: a double-glass photovoltaic module 2 disposed between an outer photovoltaic glass cover plate 1 and a heat storage brick wall 3, wherein an internal ventilation channel 5 is formed between the double-glass photovoltaic module 2 and the heat storage brick wall 3; an indoor upper baffle 11 and an indoor lower baffle 12 disposed at the top and bottom of the internal ventilation channel 5; an outdoor upper baffle 9 and an outdoor lower baffle 10 disposed outside the double-glass photovoltaic module 2; a first temperature sensor 8, a second temperature sensor 7, and a third temperature sensor 6 for respectively collecting indoor temperature T1, photovoltaic module temperature T2, and outdoor equivalent temperature T3; and a control unit, the control unit comprising:

[0122] The working mode module is used to determine the target working mode based on the indoor temperature collected by the first temperature sensor 8, the photovoltaic module temperature collected by the second temperature sensor 7, and the outdoor equivalent temperature collected by the third temperature sensor 6.

[0123] The first control module is used to control the outdoor upper baffle 9 and outdoor lower baffle 10 to close and the indoor upper baffle 11 and indoor lower baffle 12 to open if the target working mode is the internal circulation mode, so that the indoor air is circulated and heated through the internal ventilation channel 5 and then flows back into the room.

[0124] The second control module is used to control the indoor upper baffle 11 and indoor lower baffle 12 to close and the outdoor upper baffle 9 and outdoor lower baffle 10 to open if the target working mode is the external circulation mode, so that the outdoor air flows through the surface of the double-glass photovoltaic module 2 to dissipate heat and then is discharged to the outside.

[0125] The third control module is used to control all baffles to close if the target working mode is closed mode, so that a closed cavity is formed between the double-glass photovoltaic module 2 and the heat storage brick wall 3.

[0126] The first temperature sensor 8, the second temperature sensor 7, and the third temperature sensor 6 can be different types of devices such as NTC thermistors, PT100 platinum resistance thermometers, digital temperature chips, and thermocouples. The outdoor upper baffle 9, the outdoor lower baffle 10, the indoor upper baffle 11, and the indoor lower baffle 12 can adopt structures such as motorized louvers, push-pull baffles, flip-up baffles, and rotary dampers. The double-glass photovoltaic module 2 can be replaced with a single-glass photovoltaic module, with the temperature sensor still attached to the center of the photovoltaic module's backsheet; the cell type can also be other types of photovoltaic cells such as polycrystalline silicon and PERC.

[0127] In some embodiments, the system further includes a drive mechanism, which includes an automatic controller 13, an automatic controller 2 14, an electric push rod 15, and an electric push rod 2 16. The automatic controller 13 and the automatic controller 2 14 are electrically connected to the electric push rod 15 and the electric push rod 2 16, respectively. The electric push rod 15 is drivenly connected to the outdoor upper baffle 9 and the indoor upper baffle 11, and the electric push rod 2 16 is drivenly connected to the outdoor lower baffle 10 and the indoor lower baffle 12.

[0128] Specifically, such as Figure 6 and 7As shown, automatic controller 13 and electric actuator 15 constitute the first control unit, installed on the upper side wall of the system. Automatic controller 2 14 and electric actuator 2 16 constitute the second control unit, installed on the lower side wall of the system. The input terminals of automatic controller 13 and automatic controller 2 14 are electrically connected to the control unit. The output terminal of automatic controller 13 is electrically connected to the input terminal of electric actuator 15, transmitting the drive signal to electric actuator 15; the output terminal of automatic controller 2 14 is electrically connected to the input terminal of electric actuator 2 16, transmitting the drive signal to electric actuator 2 16. The output shaft of electric actuator 15 is mechanically connected to the outdoor upper baffle 9 and the indoor upper baffle 11 via a linkage mechanism or a rack and pinion mechanism. The output shaft of electric actuator 2 16 is mechanically connected to the outdoor lower baffle 10 and the indoor lower baffle 12 via a linkage mechanism or a rack and pinion mechanism. After receiving drive signals from automatic controllers 13 and 14, electric push rods 15 and 16 extend or retract linearly according to the polarity of the drive signals. This linear motion is then converted into rotational or sliding motion of the corresponding baffles via a transmission mechanism, causing the outdoor upper baffle 9, outdoor lower baffle 10, indoor upper baffle 11, and indoor lower baffle 12 to switch between open and closed positions. Automatic controllers 13 and 14 collaboratively output different combinations of drive signals, enabling the four baffles to reach their respective target positions according to different opening and closing combinations. Automatic controller 13, in conjunction with electric push rod 15, controls the movement of the upper baffle, while automatic controller 14, in conjunction with electric push rod 16, controls the movement of the lower baffle.

[0129] It should be noted that each module in the control unit in this embodiment corresponds one-to-one with each step in the centrally ventilated photovoltaic Transbryne wall temperature control method in the aforementioned embodiment. Therefore, the specific implementation of this embodiment can refer to the implementation of the aforementioned centrally ventilated photovoltaic Transbryne wall temperature control method, and will not be repeated here.

[0130] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0131] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for temperature control of a centrally located ventilated photovoltaic Transbryne wall, characterized in that, A temperature control system for a centrally located ventilated photovoltaic Transbryne wall is provided. The system includes: a double-glass photovoltaic module (2) disposed between an outer photovoltaic glass cover (1) and a heat storage brick wall (3), forming an internal ventilation channel (5) between the double-glass photovoltaic module (2) and the heat storage brick wall (3); an indoor upper baffle (11) and an indoor lower baffle (12) disposed at the top and bottom of the internal ventilation channel (5); an outdoor upper baffle (9) and an outdoor lower baffle (10) disposed outside the double-glass photovoltaic module (2); a first temperature sensor (8), a second temperature sensor (7), and a third temperature sensor (6) for respectively collecting indoor temperature T1, photovoltaic module temperature T2, and outdoor equivalent temperature T3; the method includes: The target working mode is determined based on the indoor temperature collected by the first temperature sensor (8), the photovoltaic module temperature collected by the second temperature sensor (7), and the outdoor equivalent temperature collected by the third temperature sensor (6). If the target working mode is the internal circulation mode, then the outdoor upper baffle (9) and outdoor lower baffle (10) are closed, and the indoor upper baffle (11) and indoor lower baffle (12) are opened, so that the indoor air is circulated and heated through the internal ventilation channel (5) and then flows back into the room; If the target working mode is the external circulation mode, then the indoor upper baffle (11) and indoor lower baffle (12) are closed, and the outdoor upper baffle (9) and outdoor lower baffle (10) are opened, so that the outdoor air flows through the surface of the double-glass photovoltaic module (2) to dissipate heat and is discharged to the outside. If the target working mode is the closed mode, then all baffles are closed, so that a closed cavity is formed between the double-glass photovoltaic module (2) and the heat storage brick wall (3).

2. The method according to claim 1, characterized in that, The step of determining the target operating mode based on the indoor temperature collected by the first temperature sensor (8), the photovoltaic module temperature collected by the second temperature sensor (7), and the outdoor equivalent temperature collected by the third temperature sensor (6) includes: The judgment is made based on the temperature of the photovoltaic module of the second temperature sensor (7) and the preset overheating threshold; When the temperature of the photovoltaic module exceeds the preset overheating threshold, the target operating mode is determined to be the external circulation mode.

3. The method according to claim 2, characterized in that, The method further includes: When the temperature of the photovoltaic module does not exceed the preset overheating threshold, the indoor temperature is determined by the first temperature sensor (8) and the preset indoor temperature upper limit threshold, wherein the preset overheating threshold is greater than the preset indoor temperature upper limit threshold. When the indoor temperature exceeds the preset indoor temperature upper limit threshold, the target operating mode is determined to be the external circulation mode.

4. The method according to claim 3, characterized in that, The method further includes: When the indoor temperature does not exceed the preset upper limit threshold of indoor temperature, the judgment is made based on the indoor temperature and the preset lower limit threshold of indoor temperature, wherein the preset upper limit threshold of indoor temperature is greater than the preset lower limit threshold of indoor temperature; When the indoor temperature is lower than the preset indoor temperature lower limit threshold, the target working mode is determined to be the internal circulation mode.

5. The method according to claim 4, characterized in that, The method further includes: When the indoor temperature is not lower than the preset indoor temperature lower limit threshold, the target working mode is determined to be the closed mode.

6. The method according to claim 4, characterized in that, When the target working mode is the inner loop mode, the method further includes: The temperature difference value is obtained based on the difference between the temperature of the photovoltaic module and the indoor temperature; The judgment is made based on the temperature difference value and the preset waste heat effectiveness threshold. When the temperature difference is greater than the preset waste heat effectiveness threshold, the internal circulation mode is maintained. When the temperature difference is less than or equal to the preset waste heat effectiveness threshold, the outdoor upper baffle (9), the outdoor lower baffle (10), the indoor upper baffle (11), and the indoor lower baffle (12) are all closed, and the internal circulation mode is exited.

7. The method according to claim 4, characterized in that, The method further includes: The determination is made based on the outdoor equivalent temperature and the preset extreme low temperature threshold. When the outdoor equivalent temperature is lower than the preset extreme low temperature threshold, the external circulation mode is prohibited from being started, wherein the preset extreme low temperature threshold is less than the preset indoor temperature lower limit threshold.

8. The method according to claim 1, characterized in that, The system also includes a drive mechanism, which includes an automatic controller one (13), an automatic controller two (14), an electric push rod one (15), and an electric push rod two (16). The automatic controller one (13) and the automatic controller two (14) are electrically connected to the electric push rod one (15) and the electric push rod two (16), respectively. The electric push rod one (15) is driven to the outdoor upper baffle (9) and the indoor upper baffle (11). The electric push rod two (16) is driven to the outdoor lower baffle (10) and the indoor lower baffle (12). The control of closing the outdoor upper baffle (9) and outdoor lower baffle (10) and opening the indoor upper baffle (11) and indoor lower baffle (12) includes: According to the target working mode being the internal circulation mode, the automatic controller one (13) is controlled to output a first drive signal to the electric push rod one (15), and the automatic controller two (14) is controlled to output a first drive signal to the electric push rod two (16). According to the first driving signal, the electric push rod one (15) is controlled to extend or retract, so as to drive the outdoor upper baffle (9) to rotate to the closed position and drive the indoor upper baffle (11) to rotate to the open position. According to the first driving signal, the electric push rod two (16) is controlled to extend or retract, so as to drive the outdoor lower baffle (10) to rotate to the closed position and drive the indoor lower baffle (12) to rotate to the open position. The control of closing the indoor upper baffle (11) and indoor lower baffle (12) and opening the outdoor upper baffle (9) and outdoor lower baffle (10) includes: According to the target working mode being the external circulation mode, the automatic controller one (13) is controlled to output a second drive signal to the electric push rod one (15), and the automatic controller two (14) is controlled to output a second drive signal to the electric push rod two (16). According to the second drive signal, the electric push rod one (15) is controlled to extend or retract, so as to drive the indoor upper baffle (11) to rotate to the closed position and drive the outdoor upper baffle (9) to rotate to the open position. According to the second drive signal, the electric push rod two (16) is controlled to extend or retract, so as to drive the indoor lower baffle (12) to rotate to the closed position and drive the outdoor lower baffle (10) to rotate to the open position. The control of closing all baffles includes: According to the target working mode being the closed mode, the automatic controller one (13) is controlled to output a third drive signal to the electric push rod one (15), and the automatic controller two (14) is controlled to output a third drive signal to the electric push rod two (16). According to the third drive signal, the electric push rod one (15) is controlled to extend or retract, so as to drive the outdoor upper baffle (9) and the indoor upper baffle (11) to rotate to the closed position. According to the third drive signal, the electric push rod two (16) is controlled to extend or retract, so as to drive the outdoor lower baffle (10) and the indoor lower baffle (12) to rotate to the closed position.

9. A centrally located, ventilated photovoltaic Transbryne wall temperature control system, characterized in that, include: A double-glass photovoltaic module (2) is installed between the outer photovoltaic special glass cover plate (1) and the heat storage brick wall (3), forming an internal ventilation channel (5) between the double-glass photovoltaic module (2) and the heat storage brick wall (3); an indoor upper baffle (11) and an indoor lower baffle (12) are installed at the top and bottom of the internal ventilation channel (5); an outdoor upper baffle (9) and an outdoor lower baffle (10) are installed on the outside of the double-glass photovoltaic module (2); a first temperature sensor (8), a second temperature sensor (7), and a third temperature sensor (6) are used to collect indoor temperature T1, photovoltaic module temperature T2, and outdoor equivalent temperature T3, respectively; a control unit, the control unit including: The working mode module is used to determine the target working mode based on the indoor temperature collected by the first temperature sensor (8), the photovoltaic module temperature collected by the second temperature sensor (7), and the outdoor equivalent temperature collected by the third temperature sensor (6). The first control module is used to control the outdoor upper baffle (9) and outdoor lower baffle (10) to close and the indoor upper baffle (11) and indoor lower baffle (12) to open if the target working mode is the internal circulation mode, so that the indoor air is circulated and heated through the internal ventilation channel (5) and then flows back into the room; The second control module is used to control the indoor upper baffle (11) and indoor lower baffle (12) to close and the outdoor upper baffle (9) and outdoor lower baffle (10) to open if the target working mode is the external circulation mode, so that the outdoor air flows through the surface of the double glass photovoltaic module (2) to dissipate heat and then is discharged to the outside. The third control module is used to control all baffles to close if the target working mode is closed mode, so that a closed cavity is formed between the double-glass photovoltaic module (2) and the heat storage brick wall (3).

10. The system according to claim 9, characterized in that, The system also includes a drive mechanism, which includes an automatic controller one (13), an automatic controller two (14), an electric push rod one (15), and an electric push rod two (16). The automatic controller one (13) and the automatic controller two (14) are electrically connected to the electric push rod one (15) and the electric push rod two (16), respectively. The electric push rod one (15) is driven to the outdoor upper baffle (9) and the indoor upper baffle (11). The electric push rod two (16) is driven to the outdoor lower baffle (10) and the indoor lower baffle (12).

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