Vehicle-mounted photovoltaic module and vehicle

Abstract

The utility model relates to a vehicle-mounted photovoltaic module and a vehicle. The vehicle-mounted photovoltaic module comprises a frame body and a skylight installation opening formed in a vehicle roof, and an installation position is arranged on the inner side wall of the frame body; the photovoltaic power generation mechanism is arranged at the mounting position, the photovoltaic power generation mechanism comprises a photovoltaic power generation panel and a heat insulation plate which are sequentially arranged from top to bottom in the vertical direction, and the heat insulation plate is used for isolating heat generated by power generation of the photovoltaic power generation panel from entering the vehicle; and the heat exchange mechanism is arranged between the photovoltaic power generation panel and the heat insulation plate, and the heat exchange mechanism is used for communicating with an air conditioning system of the vehicle and is configured to be capable of cooling the photovoltaic power generation panel. The heat exchange mechanism is arranged between the photovoltaic power generation panel and the heat insulation plate of the photovoltaic power generation mechanism, and the photovoltaic power generation panel can be cooled through the heat exchange mechanism, so that the photovoltaic power generation panel can be maintained at the working temperature during power generation, and the photovoltaic power generation efficiency is improved.

Description

Technical Field

[0001] This disclosure relates to the field of new energy vehicle technology, specifically to an on-board photovoltaic module and a vehicle. Background Technology

[0002] Currently, one method to increase the range of new energy vehicles is to install photovoltaic panels on the vehicle to charge the vehicle's battery pack through photovoltaic power generation. In related technologies, the photovoltaic panels are independently installed on the top of the vehicle. The photovoltaic panels are greatly affected by the external air. For example, in summer, the external air temperature is high, which leads to poor heat dissipation of the photovoltaic panels. The temperature of the photovoltaic panels deviates significantly from the optimal operating temperature, resulting in a decrease in photovoltaic power generation efficiency. Utility Model Content

[0003] The purpose of this disclosure is to provide an on-vehicle photovoltaic module and vehicle, which can cool the photovoltaic power generation layer to control the temperature of the photovoltaic power generation layer and improve the photovoltaic power generation efficiency, at least partially solving the problems in the related technology.

[0004] To achieve the above objectives, this disclosure provides a vehicle-mounted photovoltaic module for use in a vehicle, comprising: a frame with a sunroof mounting opening on the roof of the vehicle, the frame having a mounting position on its inner sidewall; a photovoltaic power generation mechanism disposed at the mounting position, the photovoltaic power generation mechanism including a photovoltaic panel and a heat insulation plate arranged vertically from top to bottom, the heat insulation plate being used to isolate the heat generated by the photovoltaic panel from entering the vehicle interior; and a heat exchange mechanism disposed between the photovoltaic panel and the heat insulation plate, the heat exchange mechanism being connected to the vehicle's air conditioning system and configured to cool the photovoltaic panel.

[0005] Optionally, the heat exchange mechanism includes a heat exchange pipe and a connecting pipe communicating with the heat exchange pipe. The heat exchange pipe is fixedly connected to the frame. The heat exchange pipe is provided with an air outlet facing the photovoltaic power generation panel. The connecting pipe is used to communicate with the vehicle's air conditioning system.

[0006] Optionally, the number of heat exchange pipes is two, and the two heat exchange pipes are respectively arranged at intervals along the front-rear direction of the vehicle in the frame.

[0007] Optionally, the connecting pipe is equipped with a check valve and a switching valve.

[0008] Optionally, the vehicle-mounted photovoltaic module further includes a temperature sensor and a controller. The temperature sensor is used to measure the temperature of the photovoltaic panel, the switching valve is a solenoid valve, and the controller is electrically connected to the temperature sensor and the solenoid valve respectively.

[0009] Optionally, the vehicle-mounted photovoltaic module further includes a shielding plate located above the photovoltaic power generation panel. The frame is provided with a slide rail that cooperates with the shielding plate. The shielding plate is slidably connected to the slide rail and configured to slide along the front-rear direction of the vehicle to cover or expose the photovoltaic power generation panel.

[0010] Optionally, the vehicle-mounted photovoltaic module further includes a decorative panel disposed on the frame and located below the heat insulation panel.

[0011] Optionally, the photovoltaic panel is photovoltaic glass.

[0012] A second aspect of this disclosure provides a vehicle including a body frame, a battery assembly disposed at the bottom of the body frame, and an on-board photovoltaic assembly disposed at a sunroof mounting opening at the top of the body frame, wherein the on-board photovoltaic assembly is electrically connected to the battery assembly via an inverter.

[0013] Optionally, the frame is provided with an installation part on its outer periphery, and the sunroof mounting opening is provided with a mating part that cooperates with the installation part. Fasteners pass through the installation part and the mating part to fix the frame to the sunroof mounting opening.

[0014] The above technical solution involves installing a frame at the sunroof mounting opening on the vehicle roof, and placing a photovoltaic power generation mechanism within the frame's mounting location. By placing a heat exchange mechanism between the photovoltaic panels and the insulation plate of the photovoltaic power generation mechanism, the photovoltaic panels can be cooled through the heat exchange mechanism, thus maintaining them at their operating temperature during power generation and improving photovoltaic power generation efficiency. Furthermore, the insulation plate within the photovoltaic power generation mechanism also prevents the heat generated by the photovoltaic panels from entering the vehicle interior, avoiding any negative impact on the passenger experience.

[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. Attached Figure Description

[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0017] Figure 1 This is an exploded view of an on-board photovoltaic module provided in an exemplary embodiment of this disclosure;

[0018] Figure 2 This is a schematic diagram of the heat exchange mechanism provided in an exemplary embodiment of this disclosure.

[0019] Explanation of reference numerals in the attached figures

[0020] 1-Frame; 11-Mounting position; 2-Sunroof mounting port; 3-Photovoltaic power generation mechanism; 31-Photovoltaic power generation panel; 32-Insulation board; 4-Heat exchange mechanism; 41-Heat exchange pipe; 42-Connecting pipe; 43-Air outlet; 5-Shielding plate; 6-Decorative panel; 7-Body frame; 8-Matching part. Detailed Implementation

[0021] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0022] In this disclosure, unless otherwise stated, directional terms such as "up," "down," "left," "right," "front," and "rear" generally refer to the state relative to the normal driving state of the vehicle. Specifically, when the vehicle is in normal driving, the direction towards the front of the vehicle is "front," the direction towards the rear of the vehicle is "rear," the direction towards the roof is "up," the direction towards the floor is "down," the direction towards the left wheel is "left," and the direction towards the right wheel is "right." "Inner" and "outer" refer to the inner and outer contours of the part itself. Furthermore, it should be noted that terms such as "first" and "second" are used to distinguish one element from another and do not have sequential or importance implications. In addition, in the description with reference to the accompanying drawings, the same reference numerals in different drawings denote the same element.

[0023] like Figure 1 and Figure 2 As shown, this disclosure provides a vehicle-mounted photovoltaic module for use in a vehicle, including: a frame 1, a sunroof mounting opening 2 disposed on the roof of the vehicle, and a mounting position 11 provided on the inner side wall of the frame 1; a photovoltaic power generation mechanism 3 disposed at the mounting position 11, the photovoltaic power generation mechanism 3 including a photovoltaic power generation panel 31 and a heat insulation plate 32 disposed vertically from top to bottom in the vertical direction, the heat insulation plate 32 being used to isolate the heat generated by the photovoltaic power generation panel 31 from entering the vehicle interior; and a heat exchange mechanism 4 disposed between the photovoltaic power generation panel 31 and the heat insulation plate 32, the heat exchange mechanism 4 being configured to cool or heat the photovoltaic power generation panel 31.

[0024] Through the above technical solution, by setting a frame 1 in the sunroof mounting opening 2 on the vehicle roof, and installing a photovoltaic power generation mechanism 3 within the mounting position of the frame 1, and by placing a heat exchange mechanism 4 between the photovoltaic panel 31 and the heat insulation plate 32 of the photovoltaic power generation mechanism 3, the photovoltaic panel 31 can be cooled or heated through the heat exchange mechanism 4. This allows the photovoltaic panel 31 to maintain its optimal operating temperature during power generation, thereby improving photovoltaic power generation efficiency. Furthermore, the heat insulation plate 32 in the photovoltaic power generation mechanism 3 also isolates the heat generated by the photovoltaic panel 31 from entering the vehicle interior, preventing the heat generated by the photovoltaic panel 31 from affecting the passenger experience.

[0025] It should be noted that the vehicle-mounted photovoltaic power generation mechanism 3 is a power generation device that outputs a certain voltage and current under sunlight. The photovoltaic power generation panel 31 can be photovoltaic glass, which replaces the original sunroof glass. The photovoltaic glass can be purchased externally. Specifically, the photovoltaic glass can include a waterproof layer, a first modified glass layer, a first encapsulation film, a power generation layer, a second encapsulation film, and a second modified glass layer. The first and second modified glass layers are identical. The first modified glass layer can be a modified glass sheet containing at least one alkaline metal oxide from Na2O, K2O, MgO, CaO, BaO, and CrO, so that its light transmittance meets the selection criteria for photovoltaic glass sheets, that is, the light transmittance reaches more than 91% in the wavelength range of the solar cell spectral response (320nm~1100nm), and it is resistant to ultraviolet radiation without a decrease in light transmittance. In addition, the modified glass sheet will not break due to excessive internal stress caused by rapid temperature changes within a temperature difference range of 0°C~85°C. The first and second encapsulation films are mainly used to bond and fix the glass and the main power generation cell, to achieve the isolation of the cell from the air, and at the same time enhance the overall strength and protect important components. The encapsulation materials that can be selected are at least one of EVA, POE, and PVB. The power generation layer includes the cell, which is composed of at least one or more of the following connected in series: full back electrode contact cell, gallium arsenide solar cell, heterojunction chip solar cell, crystalline silicon solar cell, silicon thin film solar cell, copper indium gallium selenide thin film solar cell, germanium telluride solar cell, and perovskite solar cell.

[0026] Furthermore, the sunroof on the vehicle's roof can be a panoramic sunroof, allowing the area of ​​the photovoltaic panel 31 to be maintained at approximately 1 square meter. In this way, each square meter of photovoltaic panel 31 can theoretically generate 2 to 5 kilowatt-hours of electricity based on eight hours of sunshine per day. In related technologies, electric vehicles generate approximately 13 kilowatt-hours per 100 kilometers. Thus, under suitable sunlight conditions, the vehicle can generate electricity through the photovoltaic panel 31 while driving or parked to extend its range. Theoretically, the daily power generation of the photovoltaic panel 31 can increase the range by approximately 7.7 to 38.5 kilometers.

[0027] In some feasible embodiments, to facilitate heat exchange of the photovoltaic panel 31, the heat exchange mechanism 4 includes a heat exchange pipe 41 and a connecting pipe 42 communicating with the heat exchange pipe 41. The heat exchange pipe 41 is fixedly connected to the frame 1, and the heat exchange pipe 41 is provided with an air outlet 43 facing the photovoltaic panel 31. The connecting pipe 42 is used to communicate with the vehicle's air conditioning system. Figure 1 and Figure 2As shown, the heat exchange pipe 41 can be a square tube, with both ends of the square tube fixedly connected to the inner wall of the frame 1. For example, the inner wall of the frame 1 can be provided with positioning holes and threaded holes. The two ends of the square tube are inserted into the positioning holes and fixedly connected to the frame 1 by screws passing through the threaded holes. The connecting pipe 42 can be a flexible pipe. One end of the connecting pipe 42 is connected to the air inlet of the square tube through a connector, and the other end of the connecting pipe 42 is connected to the vehicle air conditioning system. For example, the connecting pipe 42 can be connected to the air outlet pipe of the air conditioning system, so that the cold air from the air conditioning system can enter the heat exchange pipe 41 through the connecting pipe 42 and be blown towards the photovoltaic power generation panel 31 through the air outlet 43, thereby controlling the temperature of the photovoltaic power generation panel 31 so that the temperature of the photovoltaic power generation panel 31 is within the preset working temperature, thereby avoiding excessive temperature and reducing power generation efficiency, and improving the power generation efficiency of the photovoltaic power generation panel 31.

[0028] Of course, to improve cooling efficiency, in some feasible embodiments, the number of heat exchange pipes 41 is two, and the two heat exchange pipes 41 are respectively arranged at intervals along the front and rear directions of the vehicle in the frame 1. Thus, the arrangement of the two heat exchange pipes 41 enables simultaneous cooling from both the front and rear ends of the photovoltaic panel 31, thereby enabling rapid cooling of the photovoltaic panel 31.

[0029] In addition, in order to facilitate the control of the heat exchange mechanism 4 to cool the photovoltaic panel 31, a check valve and a switching valve are provided on the connecting pipe 42. The switching valve can be a solenoid valve, which can be connected to the vehicle's control platform. The control platform can selectively control the opening degree of the solenoid valve to control the flow rate into the connecting pipe 42 to cool the photovoltaic panel 31. Of course, the check valve can prevent hot air from flowing back into the vehicle's air conditioning system and interfering with the interior temperature.

[0030] It is understandable that the shape of the heat exchange pipe 41 and the connecting pipe 42 can be adjusted and adapted according to the frame space on the specific vehicle body, and is not limited to specific square, round or other regular shapes; in addition, the frame 1 is also provided with an air guide channel that connects to the outside, so that when the cold air cools the photovoltaic panel 31, it can be discharged into the atmosphere through the air guide channel. At the same time, a check valve can be installed in the air guide channel to prevent outside air from entering.

[0031] In some feasible implementations, to facilitate the control of the heat exchange mechanism 4 in cooling the photovoltaic panel 31, the vehicle-mounted photovoltaic module also includes a temperature sensor and a controller. The temperature sensor measures the temperature of the photovoltaic panel 31, and the switching valve is a solenoid valve. The controller is electrically connected to both the temperature sensor and the solenoid valve. The controller can be a PLC controller, a microcontroller, or the vehicle's control platform. The temperature sensor can be fixed to the back of the photovoltaic panel 31. Therefore, the controller can acquire data from the temperature sensor to control the opening and closing of the solenoid valve and the flow rate of the solenoid valve. For example, when the actual temperature of the photovoltaic panel 31 differs significantly from the optimal operating temperature, the solenoid valve can be set to a higher flow rate to allow the cold air to quickly cool the photovoltaic panel 31. When the actual temperature of the photovoltaic panel 31 is less than the optimal operating temperature, the solenoid valve can be set to a lower flow rate. When the temperature of the photovoltaic panel 31 falls below the preset operating temperature, the valve opening of the solenoid valve can be fixed. In this way, the controller can more accurately cool the photovoltaic panel 31, improving cooling efficiency.

[0032] It is understandable that the air outlet duct of the air conditioning system can provide cold air, and of course, it can also provide hot air. When the outdoor temperature is low, the photovoltaic power generation panel 31 may also experience a decrease in power generation efficiency due to the low temperature. At this time, the photovoltaic power generation panel 31 can be heated by the hot air from the air conditioning system through the air outlet duct, thereby maintaining the photovoltaic power generation panel 31 at the preset operating temperature and improving the power generation efficiency.

[0033] Of course, to avoid damage to the photovoltaic panel 31, in some feasible embodiments, the vehicle-mounted photovoltaic module also includes a shield 5. The shield 5 is located above the photovoltaic panel 31, and the frame 1 is provided with a slide rail that cooperates with the shield 5. The shield 5 is slidably connected to the slide rail and configured to slide along the front and rear directions of the vehicle to cover or expose the photovoltaic panel 31. It is understood that the shield 5 can be equipped with a driver, which can be an electric cylinder. The extension and retraction of the electric cylinder pushes the shield 5 to slide along the front and rear directions of the vehicle. The driver can be electrically connected to the vehicle's battery assembly and controller, respectively. Thus, when the photovoltaic panel 31 is not generating electricity, the driver can drive the shield 5 to move to cover the photovoltaic panel 31, avoiding accidental damage to the photovoltaic panel 31 during vehicle operation or parking.

[0034] In addition, the vehicle photovoltaic module also includes a decorative panel 6, which is set in the frame 1 and located below the heat insulation plate 32. The decorative panel 6 can be fixedly connected to the bottom wall of the heat insulation plate 32 and completely cover the heat insulation plate 32. For example, the decorative panel 6 can be a starry sky roof. The setting of the decorative panel 6 can improve the vehicle's passenger experience.

[0035] A second aspect of this disclosure provides a vehicle including a body frame 7, a battery assembly disposed at the bottom of the body frame 7, and an on-board photovoltaic assembly disposed at a sunroof mounting opening 2 at the top of the body frame 7. The on-board photovoltaic assembly is electrically connected to the battery assembly via an inverter. It is understood that the aforementioned vehicle can be a pure electric new energy vehicle or a hybrid electric vehicle. The vehicle's battery assembly is electrically connected to the on-board photovoltaic assembly via an inverter, thereby enabling the photovoltaic panels 31 in the on-board photovoltaic assembly to charge the vehicle's battery assembly, thus improving the vehicle's range.

[0036] In some feasible embodiments, the outer periphery of the frame 1 is provided with a mounting part, and the sunroof mounting opening 2 is provided with a mating part that cooperates with the mounting part. The mounting part can be a mounting hole, and the mating part can be a threaded hole. Fasteners pass through the mounting part and the mating part to fix the frame 1 and the sunroof mounting opening 2 together. Of course, it is understood that a sealing gasket is also provided between the frame 1 and the sunroof mounting opening 2 to ensure the overall sealing between the frame 1 and the sunroof mounting opening 2.

[0037] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0038] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0039] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A vehicle-mounted photovoltaic module for use in a vehicle, characterized in that, include: A frame, with a sunroof mounting opening on the roof of the vehicle, and a mounting position provided on the inner side wall of the frame; A photovoltaic power generation mechanism is installed at the mounting position. The photovoltaic power generation mechanism includes a photovoltaic power generation panel and a heat insulation plate arranged vertically from top to bottom. The heat insulation plate is used to isolate the heat generated by the photovoltaic power generation panel from entering the vehicle. and A heat exchange mechanism is disposed between the photovoltaic panel and the insulation plate. The heat exchange mechanism is used to communicate with the vehicle's air conditioning system and is configured to cool the photovoltaic panel.

2. The vehicle-mounted photovoltaic module according to claim 1, characterized in that, The heat exchange mechanism includes a heat exchange pipe and a connecting pipe connected to the heat exchange pipe. The heat exchange pipe is fixedly connected to the frame. The heat exchange pipe is provided with an air outlet facing the photovoltaic power generation panel. The connecting pipe is used to connect to the vehicle's air conditioning system.

3. The vehicle-mounted photovoltaic module according to claim 2, characterized in that, The number of heat exchange pipes is two, and the two heat exchange pipes are respectively arranged at intervals along the front-rear direction of the vehicle in the frame.

4. The vehicle-mounted photovoltaic module according to claim 2, characterized in that, The connecting pipe is equipped with a check valve and a switching valve.

5. The vehicle-mounted photovoltaic module according to claim 4, characterized in that, The vehicle-mounted photovoltaic module also includes a temperature sensor and a controller. The temperature sensor is used to measure the temperature of the photovoltaic panel. The switching valve is a solenoid valve. The controller is electrically connected to the temperature sensor and the solenoid valve respectively.

6. The vehicle-mounted photovoltaic module according to claim 5, characterized in that, The vehicle-mounted photovoltaic module also includes a shielding plate located above the photovoltaic power generation panel. The frame is provided with a slide rail that cooperates with the shielding plate. The shielding plate is slidably connected to the slide rail and configured to slide along the front-rear direction of the vehicle to cover or expose the photovoltaic power generation panel.

7. The vehicle-mounted photovoltaic module according to claim 5, characterized in that, The vehicle-mounted photovoltaic module also includes a decorative panel, which is disposed on the frame and located below the heat insulation plate.

8. The vehicle-mounted photovoltaic module according to claim 1, characterized in that, The photovoltaic panel is photovoltaic glass.

9. A vehicle, characterized in that, The vehicle-mounted photovoltaic module according to any one of claims 1-8 includes a vehicle frame, a battery assembly disposed at the bottom of the vehicle frame, and a sunroof mounting opening disposed at the top of the vehicle frame, wherein the vehicle-mounted photovoltaic module is electrically connected to the battery assembly via an inverter.

10. The vehicle according to claim 9, characterized in that, The frame is provided with an installation part on its outer periphery, and the sunroof mounting opening is provided with a mating part that cooperates with the installation part. Fasteners pass through the installation part and the mating part to fix the frame to the sunroof mounting opening.

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