Indoor temperature adjusting system based on solar photovoltaic panel shutter

Abstract

The invention discloses an indoor temperature adjusting system based on a solar photovoltaic panel shutter, and belongs to the technical field of building energy conservation. The solar photovoltaic panel is used for power generation, self power supply of the shutter indoor temperature adjusting system is achieved, and external output of electric energy is achieved. Through motor control, the photovoltaic panel is driven to follow light directionally, and better photoelectric conversion efficiency is achieved. The blind window is arranged between the two pieces of single-layer glass, four air flow channels communicated with the outside are designed, the function of adjusting indoor cooling and heating loads according to requirements in different seasons is achieved, and good energy conservation and emission reduction characteristics and economical efficiency are achieved. In addition, the composite phase change heat storage material is additionally arranged on the back face of the photovoltaic panel, the situation that the overheating efficiency of the photovoltaic panel is reduced due to high temperature can be effectively reduced, and the indoor temperature adjusting function is achieved. The system has the advantages that the photovoltaic efficiency is high, indoor cooling and heating loads can be adjusted, air conditioner power consumption is reduced, and the effects of energy conservation and emission reduction of buildings are achieved.

Description

Technical Field

[0001] The present invention relates to the field of building energy conservation, and in particular to an indoor temperature regulating system based on solar photovoltaic panel blinds. Background Art

[0002] Building energy consumption accounts for 40% of total social energy consumption, of which air conditioning systems account for 30%-40%. In southern China, where midday heating is available, air conditioning system energy consumption depends on both cooling demand in hot weather and scorching heat demand in winter.

[0003] Double-glazed curtain walls, a building envelope consisting of two layers of glass, with an air buffer layer in between, offer key advantages in energy efficiency, sound insulation, and thermal comfort. Shading devices such as blinds and ventilation systems like fans are often installed internally. Shading devices block direct solar radiation, cooling the interior and improving thermal comfort during warmer months. Sunlight warms the air within the interlayer. While this creates a chimney effect, driving internal air flow and lowering the indoor temperature to a certain extent, it can also heat the interior air during hot summer months.

[0004] At present, there are several industry pain points in the application of double-glazed curtain walls:

[0005] 1. The greenhouse effect causes indoor temperature rise in summer.

[0006] 2. In winter, the heat preservation only relies on the high thermal resistance generated by double-glazed glass, and the solar radiation and environmental heat energy are not fully utilized.

[0007] 3. Electrical appliances such as internal fans and shutter lifting mechanisms require external power supply.

[0008] Existing glass curtain walls have the above-mentioned defects. Therefore, it is particularly important to design an intelligent glass curtain wall solution that can be self-powered and comprehensively utilize solar energy and ambient heat energy according to different working conditions in winter and summer. Summary of the Invention

[0009] In view of this, the present invention designs a novel indoor temperature control system based on solar photovoltaic panel blinds, and its technical solution is as follows:

[0010] The indoor temperature control system based on solar photovoltaic panel blinds mainly includes blinds photovoltaic modules, four-valve ventilation duct modules and electric drive assembly modules;

[0011] The shutter photovoltaic module includes two sheets of single-layer glass, a shutter arranged between the two sheets of single-layer glass, a shutter angle adjustment device, a photovoltaic panel arranged on the outer surface of the shutter blades, and a single-axis photovoltaic tracking sensor module; the four-valve ventilation duct module includes two sets of outdoor ventilation ducts and two sets of indoor ventilation ducts; the electric drive assembly module includes a battery and a controller;

[0012] Two single-layer glass panels, one facing outdoors and the other facing indoors; photovoltaic panels convert solar energy into directly usable electricity through the photoelectric effect, and store this energy in the battery of the electric drive assembly module; a phase change heat storage unit is installed on the back of the photovoltaic panel; a single-axis photovoltaic tracking sensor module is used to obtain the light angle, and the blind angle adjustment device is used to adjust the angle of the blind blades based on the light angle information obtained by the single-axis photovoltaic tracking sensor module, thereby changing the angle of the photovoltaic panel;

[0013] Two sets of outdoor ventilation ducts are respectively installed at the upper and lower ends of the outer single-layer glass to connect the outdoor environment with the space between the two single-layer glass; two sets of indoor ventilation ducts are respectively installed at the upper and lower ends of the inner single-layer glass to connect the indoor environment with the space between the two single-layer glass; valves and fans are installed on both the outdoor ventilation ducts and the indoor ventilation ducts;

[0014] The controller of the electric drive assembly module is used to control the four-valve ventilation duct module and the shutter photovoltaic module to operate according to demand, thereby achieving the effects of indoor temperature regulation and automatic photovoltaic tracking of the shutters.

[0015] Preferably, the single-axis photovoltaic light-tracking sensor module is composed of two light intensity sensors and a sunshade. The entire single-axis photovoltaic light-tracking sensor module is fixed to the end of the horizontal rotation axis of the photovoltaic panel, parallel to the plane of the photovoltaic panel and rotates synchronously.

[0016] The sunshade is installed at the center of the single-axis photovoltaic tracking sensor module, perpendicular to the photovoltaic panel, and the upper and lower light intensity sensors are parallel to the plane of the photovoltaic panel; the light intensity sensors obtain light intensity information through the photoresistors inside them and transmit it to the electric drive assembly module. When the difference in light intensity values transmitted back to the electric drive assembly module by the two light intensity sensors is greater than the set value, the electric drive assembly module controls the blinds angle adjustment device to synchronously adjust the angles of the light intensity sensors and the photovoltaic panel to eliminate the light intensity difference between the two light intensity sensors.

[0017] The present invention also provides a method for regulating the indoor temperature regulation system of the shutters, which comprises the following steps: an electric drive assembly module collects indoor temperature data in real time; when the indoor temperature is higher than a set upper limit threshold, the electric drive assembly module controls to open the fans on the two sets of outdoor ventilation ducts, so that the outdoor environment and the space between the two sheets of single-layer glass are connected, and the outdoor air is allowed to enter the space between the two sheets of single-layer glass from the lower ventilation duct, pass over the surface of the photovoltaic panel from bottom to top, and be discharged through the upper ventilation duct, thereby achieving a cooling effect on the photovoltaic space, thereby lowering the indoor temperature; when the indoor temperature is lower than a set lower limit threshold, the electric drive assembly module controls to open the fans on the two sets of indoor ventilation ducts, so that the indoor environment and the space between the two sheets of single-layer glass are connected, and the indoor air is allowed to enter the space between the two sheets of single-layer glass from the lower ventilation duct, pass over the surface of the photovoltaic panel from bottom to top, and be transported back to the room through the upper ventilation duct, thereby achieving an effect of heating the air by using the photovoltaic temperature, thereby raising the indoor temperature;

[0018] The two light intensity sensors of the single-axis photovoltaic tracking sensor module respectively obtain light intensity information through the photoresistors inside them and transmit it to the electric drive assembly module. When the difference in the light intensity values transmitted back to the assembly module by the two light intensity sensors is greater than the set value, the electric drive assembly module controls the blinds angle adjustment device to synchronously adjust the angles of the light intensity sensors and the photovoltaic panel to eliminate the light intensity difference between the two light intensity sensors; when the difference in the light intensity values transmitted back to the electric drive assembly module by the two light intensity sensors is less than the set value, the adjustment stops. At this time, the angle of the photovoltaic panel matches the real-time light angle, realizing tracking control.

[0019] This invention enables all-weather self-powered operation. During the day, photovoltaic panels generate electricity through the photoelectric effect, powering the system and storing electrical energy. At night, the system draws power from batteries, continuing to power the four-valve ventilation duct module and the electric drive assembly module to regulate the indoor temperature. At high temperatures, the system reduces indoor temperatures through shading with blinds, heat absorption by the phase-change thermal storage unit, and connection of the four-valve ventilation duct module to the outdoor environment, saving air conditioning power. At low temperatures, the system increases the amount of heat entering the room through heat release from the photovoltaic panels, the phase-change thermal storage unit, and the chimney effect, saving heating energy.

[0020] As a preferred solution of the present invention, the entire system can be integrated into a window, which is compact and easy to install, and is mostly used in residential applications. In addition, the system can be expanded to control multiple windows in a linked manner, and is mostly used in glass curtain walls. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the indoor temperature control system based on solar photovoltaic panel blinds.

[0022] Figure 2 This is a schematic diagram of the automatic light-tracking structure of the shutter photovoltaic module.

[0023] Figure 3 It is a schematic diagram of the shutter lifting structure.

[0024] Figure 4 It is a schematic diagram of the indoor temperature control system.

[0025] Figure 5 This is a schematic diagram of the four valves and motor working in summer and winter. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0027] As attached Figure 1 As shown, the present invention proposes an indoor temperature control system based on solar photovoltaic panels for blinds. The system includes a blind photovoltaic module, a four-valve ventilation duct module, and an electric drive assembly module. As a preferred embodiment of the present invention, the entire system can be integrated into a single window, primarily for residential applications, but this serves only as a reference for integration. Furthermore, the system can be expanded to control multiple windows in a coordinated manner, primarily for glass curtain walls.

[0028] Specifically, such as Figures 1 to 3 As shown, the Venetian blind photovoltaic module consists of two sheets of single-layer glass, a photovoltaic panel, blind blades, a blind support structure, a phase change material unit, a blind angle adjustment device, a blind lifting mechanism, and a single-axis photovoltaic tracking sensor module. The blind blades are mounted on the blind support structure, the photovoltaic panel is located on the side of the blind blade facing the outside, and a water pipe and phase change material unit are located on the back of the photovoltaic panel for heat dissipation. These components form the overall blind structure with photovoltaic panel, which is installed between the two sheets of single-layer glass. The single-axis photovoltaic tracking sensor module is used to detect the illumination angle, and the blind angle adjustment device is used to adjust the angle of the blind blades based on the illumination angle information obtained by the single-axis photovoltaic tracking sensor module, thereby changing the angle of the photovoltaic panel. In practical applications, the entire Venetian blind photovoltaic module can function as a window. The blind support structure or blind blades have a horizontal rotation axis. When the rotation axis rotates, the blind support structure or blind blades drive the photovoltaic panel to change its angle to match the actual illumination angle, thereby improving photoelectric conversion efficiency. The shutter angle adjustment device is in transmission connection with the rotating shaft, and the shutter angle adjustment device can be an actuator such as a motor.

[0029] like Figure 2As shown, in a specific embodiment of the present invention, the single-axis photovoltaic tracking sensor module is composed of two light intensity sensors ( Figure 2 mid-light sensor) and a sunshade ( Figure 2 The entire single-axis photovoltaic light-tracking sensor module is fixed at the end of the horizontal rotation axis of the photovoltaic panel, parallel to the plane of the photovoltaic panel and rotating synchronously; the sunshade is installed in the center of the single-axis photovoltaic light-tracking sensor module, perpendicular to the photovoltaic panel, and the upper and lower light intensity sensors are parallel to the plane of the photovoltaic panel; the light intensity sensors obtain light intensity information through the photoresistors inside them and transmit it to the electric drive assembly module.

[0030] During use, if the angle of the photovoltaic panel is perpendicular to the real-time illumination direction, the sunshade will not block the light intensity sensor, and both light intensity sensors will receive the same light intensity value. If there is a large deviation in the angle of the photovoltaic panel, the angle of the photovoltaic panel on one side will be blocked by the sunshade and unable to receive light. In this case, there will be a large difference in the light intensity values of the two light intensity sensors. By setting a threshold, the detection of the angle of the photovoltaic panel and the real-time illumination direction can be achieved. Specifically, when the difference in the light intensity values transmitted back to the electric drive assembly module by the two light intensity sensors is greater than the set value, the electric drive assembly module controls the blind angle adjustment device to synchronously adjust the angle of the light intensity sensor and the photovoltaic panel to eliminate the light intensity difference between the two light intensity sensors.

[0031] The blind lifting structure is connected to the blind support structure and can be raised and lowered by stretching or a motor. The blind lifting structure is conventionally used, and any mechanism capable of achieving the desired effect will suffice. For example, on rainy days, when light intensity is low and power generation efficiency is low, the blinds can be raised. When the blinds are raised, the indoor temperature control system of the blinds disclosed herein is in a shutdown state. Under suitable light intensity conditions, the blinds can be lowered to activate the indoor temperature control system of the blinds disclosed herein.

[0032] The photovoltaic panel of this invention is equipped with a phase-change thermal storage unit on the back. This unit comprises a heat-conducting outer shell and a phase-change thermal storage material filled within the outer shell. This unit absorbs and releases heat, mitigating overheating and reduced efficiency of the photovoltaic panel caused by high temperatures, while also assisting in regulating indoor temperature. In one embodiment, the outer shell is made of aluminum and filled with paraffin wax and copper foam. The paraffin wax, as the phase-change thermal storage material, has a phase-change temperature of 35°C, while the copper foam provides support and conducts heat.

[0033] In a specific embodiment of the present invention, the four-valve ventilation duct module includes two groups of outdoor ventilation ducts and two groups of indoor ventilation ducts; wherein, the two groups of outdoor ventilation ducts are respectively arranged at the upper and lower ends of the outer single-layer glass, for connecting the outdoor environment and the space between the two pieces of single-layer glass; the two groups of indoor ventilation ducts are respectively arranged at the upper and lower ends of the inner single-layer glass, for connecting the indoor environment and the space between the two pieces of single-layer glass; valves and fans are provided on the outdoor ventilation ducts and the indoor ventilation ducts; the fan of the four-valve ventilation duct module is controlled by the electric drive assembly module, and the operation of the fan realizes the circulation of air in the connected interval, thereby meeting the indoor cooling and heating load requirements in different seasons.

[0034] The electric drive assembly module includes a battery and a controller. The battery stores the electricity generated by the photovoltaic panels, the motor drives the blinds and fan, and the controller controls the overall operation of the system, including spotlight control and indoor temperature regulation.

[0035] The present invention can regulate indoor temperature based on indoor temperature and external light. For example, at high temperatures, the interior of the louvered photovoltaic module is connected to the outside, and the phase-change thermal storage unit absorbs heat to prevent external heat from entering the room. The system then discharges heat from the interior of the louvered photovoltaic module through the four-valve ventilation duct module, reducing the amount of heat entering the room. At low temperatures, the interior of the louvered photovoltaic module is connected to the room, and the phase-change thermal storage unit releases heat. The system then allows indoor air to enter the interior of the louvered photovoltaic module through the four-valve ventilation duct module, increasing indoor heat through the chimney effect. The system is capable of achieving all-weather self-powered operation. During the day, the photovoltaic panels generate electricity through the photoelectric effect, powering the system and storing electrical energy. At night, the system is powered by a battery, which continues to power the four-valve ventilation duct module and the electric drive assembly module to regulate the indoor temperature.

[0036] Specifically, such as Figure 4 and Figure 5 As shown, the electric drive assembly module collects indoor temperature data in real time. When the indoor temperature is higher than the set upper limit threshold, the electric drive assembly module controls the opening of the fans on the two sets of outdoor ventilation ducts, so that the outdoor environment and the space between the two sheets of single-layer glass are connected, so that the outdoor air enters the space between the two sheets of single-layer glass from the lower ventilation duct, passes over the surface of the photovoltaic panel from bottom to top, and is discharged through the upper ventilation duct, thereby achieving a cooling effect on the photovoltaic space, thereby reducing the indoor temperature; when the indoor temperature is lower than the set lower limit threshold, the electric drive assembly module controls the opening of the fans on the two sets of indoor ventilation ducts, so that the indoor environment and the space between the two sheets of single-layer glass are connected, so that the indoor air enters the space between the two sheets of single-layer glass from the lower ventilation duct, passes over the surface of the photovoltaic panel from bottom to top, and is transported back to the room through the upper ventilation duct, thereby achieving the effect of using the photovoltaic temperature to heat the air, thereby increasing the indoor temperature;

[0037] The single-axis photovoltaic light-chasing sensor module consists of two light intensity sensors and a sunshade. The entire sensor module is fixed to the end of the horizontal rotation axis of the solar panel bracket, parallel to the plane of the photovoltaic panel and rotating synchronously. The sunshade is installed in the center of the module, perpendicular to the photovoltaic panel, and the upper and lower sensors are parallel to the plane of the photovoltaic panel. The light intensity sensors each obtain light intensity information through their internal photoresistors and transmit it to the electric drive assembly module. When the difference in light intensity values transmitted back to the assembly module by the two light intensity sensors is greater than the set value, the electric drive assembly module controls the blind angle adjustment device to synchronously adjust the angles of the light intensity sensors and the photovoltaic panel, causing them to rotate in the direction of stronger light intensity. When the difference in light intensity values transmitted back to the controller by the two light intensity sensors is less than the set value, the adjustment stops. At this time, the angle of the photovoltaic panel matches the real-time light angle, achieving light-chasing control.

[0038] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An indoor temperature control system based on solar photovoltaic panel blinds, characterized in that: The system mainly includes a shutter photovoltaic module, a four-valve ventilation duct module and an electric drive assembly module; The shutter photovoltaic module includes two sheets of single-layer glass, a shutter arranged between the two sheets of single-layer glass, a shutter angle adjustment device, a photovoltaic panel arranged on the outer surface of the shutter blades, and a single-axis photovoltaic tracking sensor module; the four-valve ventilation duct module includes two sets of outdoor ventilation ducts and two sets of indoor ventilation ducts; the electric drive assembly module includes a battery and a controller; Two single-layer glass panels, one facing outdoors and the other facing indoors; photovoltaic panels convert solar energy into directly usable electricity through the photoelectric effect, and store this energy in the battery of the electric drive assembly module; a phase change heat storage unit is installed on the back of the photovoltaic panel; a single-axis photovoltaic tracking sensor module is used to obtain the light angle, and the blind angle adjustment device is used to adjust the angle of the blind blades based on the light angle information obtained by the single-axis photovoltaic tracking sensor module, thereby changing the angle of the photovoltaic panel; Two sets of outdoor ventilation ducts are respectively installed at the upper and lower ends of the outer single-layer glass to connect the outdoor environment with the space between the two single-layer glass; two sets of indoor ventilation ducts are respectively installed at the upper and lower ends of the inner single-layer glass to connect the indoor environment with the space between the two single-layer glass; valves and fans are installed on both the outdoor ventilation ducts and the indoor ventilation ducts; The controller of the electric drive assembly module is used to control the four-valve ventilation duct module and the shutter photovoltaic module to operate according to demand, thereby achieving the effects of indoor temperature regulation and automatic photovoltaic tracking of the shutters.

2. The indoor temperature control system based on solar photovoltaic panel blinds according to claim 1 is characterized in that: The single-axis photovoltaic tracking sensor module consists of two light intensity sensors and a sunshade. The entire single-axis photovoltaic tracking sensor module is fixed to the end of the horizontal rotation axis of the photovoltaic panel, parallel to the plane of the photovoltaic panel and rotates synchronously. The sunshade is installed at the center of the single-axis photovoltaic tracking sensor module, perpendicular to the photovoltaic panel, and the upper and lower light intensity sensors are parallel to the plane of the photovoltaic panel; the light intensity sensors obtain light intensity information through the photoresistors inside them and transmit it to the electric drive assembly module. When the difference in light intensity values transmitted back to the electric drive assembly module by the two light intensity sensors is greater than the set value, the electric drive assembly module controls the blinds angle adjustment device to synchronously adjust the angles of the light intensity sensors and the photovoltaic panel to eliminate the light intensity difference between the two light intensity sensors.

3. The indoor temperature control system based on solar photovoltaic panel blinds according to claim 1, characterized in that: The shutter photovoltaic module also includes a shutter support structure and a shutter lifting structure; wherein the shutter support structure is used to support the shutter blades, and the shutter lifting structure is used to control the lifting of the shutter support structure.

4. The indoor temperature control system based on solar photovoltaic panel blinds according to claim 1, characterized in that: The phase change heat storage unit includes a heat-conducting shell and a phase change heat storage material filled in the heat-conducting shell. The phase change heat storage unit is used to absorb and release heat, reduce the overheating of the photovoltaic panel and the reduction of efficiency caused by high temperature, and assist in regulating the indoor temperature.

5. The indoor temperature control system based on solar photovoltaic panel blinds according to claim 4, characterized in that: The heat-conducting shell is made of aluminum and is filled with paraffin wax and foam copper. The paraffin wax is used as a phase change heat storage material and has a phase change temperature of 35°C.

6. The indoor temperature control system based on solar photovoltaic panel blinds according to claim 1, characterized in that: The fan of the four-valve ventilation duct module is controlled by the electric drive assembly module. The operation of the fan enables air circulation in the connected intervals to meet the indoor cooling and heating load requirements in different seasons.

7. The indoor temperature control system based on solar photovoltaic panel blinds according to claim 1, characterized in that: The battery is used to store the electricity generated by the photovoltaic panels to drive the operation of the fans of the shutter photovoltaic modules and the four-valve ventilation duct modules. The controller is used to control the overall operation of the system, including spotlight control and indoor temperature regulation.

8. The indoor temperature control system based on solar photovoltaic panel blinds according to claim 1, characterized in that: The system is capable of achieving all-weather self-powered operation. During the day, the photovoltaic panels generate electricity through the photoelectric effect to power the system and store electrical energy. At night, the system is powered by batteries to continue powering the four-valve ventilation duct module and the electric drive assembly module to regulate the indoor temperature.

9. A method for regulating indoor temperature regulation system of Venetian blinds according to any one of claims 1 to 8, characterized in that: The steps include: The electric drive assembly module collects indoor temperature data in real time. When the indoor temperature is higher than the set upper limit threshold, the electric drive assembly module controls the opening of the fans on the two sets of outdoor ventilation ducts, so that the outdoor environment and the space between the two pieces of single-layer glass are connected, and the outdoor air enters the space between the two pieces of single-layer glass from the lower ventilation duct, passes over the surface of the photovoltaic panel from bottom to top, and is discharged through the upper ventilation duct, thereby achieving a cooling effect on the photovoltaic space, thereby lowering the indoor temperature; when the indoor temperature is lower than the set lower limit threshold, the electric drive assembly module controls the opening of the fans on the two sets of indoor ventilation ducts, so that the indoor environment and the space between the two pieces of single-layer glass are connected, and the indoor air enters the space between the two pieces of single-layer glass from the lower ventilation duct, passes over the surface of the photovoltaic panel from bottom to top, and is transported back to the room through the upper ventilation duct, thereby achieving the effect of using the photovoltaic temperature to heat the air, thereby raising the indoor temperature; The two light intensity sensors of the single-axis photovoltaic tracking sensor module respectively obtain light intensity information through the photoresistors inside them and transmit it to the electric drive assembly module. When the difference in the light intensity values transmitted back to the assembly module by the two light intensity sensors is greater than the set value, the electric drive assembly module controls the blinds angle adjustment device to synchronously adjust the angles of the light intensity sensors and the photovoltaic panel to eliminate the light intensity difference between the two light intensity sensors; when the difference in the light intensity values transmitted back to the electric drive assembly module by the two light intensity sensors is less than the set value, the adjustment stops. At this time, the angle of the photovoltaic panel matches the real-time light angle, realizing tracking control.

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