Umbrella-type concentrating photovoltaic power generation equipment for car roof

Abstract

The utility model discloses umbrella-type concentrating photovoltaic power generation equipment for a car roof, which comprises a concentrating battery collector positioned at the top, a plurality of fan-shaped concentrating reflectors which are positioned at the lower part and can extend and contract, a vehicle-mounted mounting bottom plate and a protective cover which are positioned at the bottom, and a storage integrated storage battery and a motor are mounted on the vehicle-mounted mounting bottom plate; a water tank and a circulating water pump are installed on the outer side face of the protective cover, a rotatable internal thread hollow rod penetrates through the top face of the protective cover and is vertically installed, the lower end of the internal thread hollow rod is connected with a motor shaft, a concentrator cell collector is fixed to the top end of the internal thread hollow rod, gallium arsenide solar cells are arranged on the surface of the concentrator cell collector, and a circulating water flow channel is formed in the concentrator cell collector. And a plurality of fan-shaped condensing reflectors are fixed on the top surface of the outer side of the protective cover through a rotary bracket assembly. The portable electric vehicle charging device is small in use space, can be carried and installed in a portable mode, can be folded and unfolded, increases the endurance mileage of an electric vehicle, reduces the charging frequency, is not affected by the price of external energy, and improves the comfort of the vehicle.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic technology, and in particular to an umbrella-type concentrating photovoltaic power generation device for vehicle roofs. Background Technology

[0002] Currently, most existing rooftop solar panels used in vehicles are monocrystalline silicon solar panels. Under sufficient sunlight, one square meter of monocrystalline silicon solar panel can generate one kilowatt-hour of electricity in about 10 hours. However, the roof area of ​​a typical passenger car is very small, less than two square meters. Therefore, in pursuit of higher power generation efficiency, larger and more numerous monocrystalline silicon solar panels would be used, easily exceeding the capacity of a typical passenger car, greatly increasing the risk of failure. Furthermore, monocrystalline silicon solar panels laid flat on the roof are highly susceptible to environmental influences, difficult to maintain, and have poor practicality. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides an umbrella-type concentrating photovoltaic power generation device for vehicle roofs, which has the advantages of high concentration, high efficiency, and low cost.

[0004] This invention is implemented as follows: an umbrella-type concentrated photovoltaic power generation device for vehicle roofs includes a concentrated solar collector at the top, multiple extendable and retractable fan-shaped concentrated reflectors at the bottom, a vehicle-mounted mounting base and a protective cover at the bottom. An integrated storage battery and a motor are mounted on the vehicle-mounted mounting base. A water tank and a circulating water pump are mounted on the outer side of the protective cover. A rotatable hollow inner wire rod is vertically mounted through the top surface of the protective cover, with its lower end extending into the protective cover and connected to the motor shaft. The concentrated solar collector is fixed to the top of the hollow inner wire rod on the outer side of the protective cover. Gallium arsenide solar cells are disposed on the surface of the concentrated solar collector, and a circulating water channel connected to the water tank and circulating water pump is disposed inside. The multiple fan-shaped concentrated reflectors are fixed to the top outer surface of the protective cover and the lower part of the hollow inner wire rod by a rotating bracket assembly. Rotating the hollow inner wire rod drives the rotating bracket assembly to move axially along the center line, realizing the extension and retraction of the multiple fan-shaped concentrated reflectors.

[0005] The protective cover has an inspection window on one side, and a handle is installed on the inspection window.

[0006] The concentrator collector is fixed to the top of the inner wire hollow rod via an externally threaded hollow tube.

[0007] The motor is fixed to the vehicle mounting base plate by a motor fixing assembly, and then connected to the hollow rod with internal threads through a reducing adapter and coupling. The motor power is taken from the integrated storage battery.

[0008] The fan-shaped focusing mirror is constructed by cutting and splicing identical spherical units, and the surface of the mirror is coated with a reflective film or sprayed with reflective material.

[0009] The advantages and technical effects of this utility model are as follows: it combines the advantages of concentrating technology and gallium arsenide solar cell technology, has a small footprint, can be carried and installed portablely, can be folded and unfolded, increases the driving range of electric vehicles, reduces the number of charging times, is not affected by external energy prices, and can also provide partial power to in-vehicle electrical appliances such as audio and air conditioning, thus improving vehicle comfort. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the umbrella-type concentrating photovoltaic power generation device for vehicle roof provided by this utility model;

[0011] Figure 2 This is a schematic diagram of the internal structure of the umbrella-type concentrating photovoltaic power generation device for vehicle roof provided by this utility model;

[0012] Figure 3 This is a light path diagram of the umbrella-type concentrating photovoltaic power generation device for vehicle roof provided by this utility model;

[0013] Figure 4 This is an overall schematic diagram of the umbrella-type concentrating photovoltaic power generation device for vehicle roof provided by this utility model.

[0014] Figure 5 This is an overall schematic diagram of the retracted umbrella-type concentrating photovoltaic power generation device for vehicle roof provided by this utility model.

[0015] Figure 6 This utility model provides a concentrator for a rooftop umbrella-type concentrating photovoltaic power generation device.

[0016] Figure 7 This is a schematic diagram of the first rotating support of the umbrella-type concentrating photovoltaic power generation device for vehicle roof provided by this utility model.

[0017] Figure 8 This is a schematic diagram of the second rotating support of the umbrella-type concentrating photovoltaic power generation device for vehicle roof provided by this utility model.

[0018] Figure 9 This is a schematic diagram of the rotating support assembly of the umbrella-type concentrating photovoltaic power generation device for vehicle roof provided by this utility model. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, the terms “first”, “second”, etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0022] Therefore, features specified with "first," "second," etc., may explicitly or implicitly include one or more of those features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The electrical devices and controllers described in this utility model are all conventional setups, and the electrical connections are also conventional connections.

[0025] like Figure 1 , 2As shown, the umbrella-type concentrated photovoltaic power generation device for vehicle roofs of this utility model includes a concentrated solar cell collector 3 at the top, a multi-segment extendable and retractable fan-shaped concentrated reflector 7 at the bottom, a vehicle-mounted mounting base 22 and a protective cover 11 at the bottom. An integrated storage battery 16 and a motor 20 are mounted on the vehicle-mounted mounting base 22. A water tank 15 and a circulating water pump 12 are mounted on the outer side of the protective cover 11. A rotatable hollow inner wire rod 6 is vertically mounted through the top surface of the protective cover 11, with its lower end extending into the protective cover. The protective cover 11 is connected to the shaft of the motor 20. The top of the inner wire hollow rod 6 on the outside of the protective cover 11 is fixed to the concentrator 3. The surface of the concentrator 3 is provided with gallium arsenide solar cells, and the inside is provided with a circulating water channel connected to the water tank 15 and the circulating water pump 12. Multiple fan-shaped concentrators 7 are fixed to the top surface of the outer side of the protective cover 11 and the lower part of the inner wire hollow rod 6 by the rotating bracket assembly 9. Rotating the inner wire hollow rod 6 drives the rotating bracket assembly 9 to move axially along the center line, realizing the extension and contraction of the multiple fan-shaped concentrators 7.

[0026] Preferably, the protective cover 11 has an inspection window 13 on one side, and a handle 14 is installed on the inspection window 13.

[0027] Preferably, the concentrating cell collector 3 is fixed to the top of the inner wire hollow rod 6 by an external threaded hollow tube 5.

[0028] Preferably, the motor 20 is fixed to the vehicle mounting base plate 22 by the motor fixing assembly 21, and then connected to the internal thread hollow rod 6 by the reducing adapter 18 and the coupling 19. The power supply of the motor 20 is taken from the storage and storage integrated battery 16.

[0029] Preferably, the fan-shaped focusing reflector 7 is constructed by cutting and splicing identical spherical units, and the reflector surface is coated with a reflective film or sprayed with a reflective material.

[0030] In this embodiment, the umbrella-type concentrating photovoltaic power generation equipment occupies an overall space of 500mm*500mm*550mm, including a circulating water pipe 1, a collector connecting water connector 2, a concentrating cell collector 3, a nut 4, an externally threaded hollow tube 5, an internally threaded hollow rod 6, a fan-shaped concentrating reflector 7, a brush 8, a rotating support assembly 9, a rotating support fixing base 10, a protective cover 11, a circulating water pump 12, a maintenance window 13, a handle 14, a water tank 15, and an integrated storage and storage battery 16.

[0031] By rotating the inner hollow rod 6, the rotating support assembly 9 is driven to move axially along the center line, thereby realizing the extension and contraction of the fan-shaped focusing reflector 7.

[0032] like Figure 7-9As shown, in this embodiment, the rotating bracket assembly 9 includes a first rotating bracket and a second rotating bracket. The first rotating bracket includes a first rotating bracket body 23, a short pin 25, and a long pin 26. The first rotating bracket is fixed to the inner wire hollow rod 6 by the long pin 26 and moves axially with the inner wire hollow rod 6. The second rotating bracket includes a second rotating bracket body 28 and a short pin 25. The fan-shaped focusing mirror 7 is fixed at the mounting hole 24 of the rotating bracket. The arc-shaped groove 27 of the second rotating bracket restricts the stroke of the axial movement. The pins act as starters and stoppers. When the first rotating bracket moves axially with the inner wire hollow rod 6, the short pins 25 drive the second rotating bracket to move. The two rotating brackets are stacked sequentially, and the bottommost second rotating bracket is then fixed to the rotating bracket fixing seat 10 by the short pins 25. The rotating bracket assembly 9 is existing technology. As long as the multiple fan-shaped focusing mirrors 7 can be extended and retracted (opened or overlapped), various mature existing technologies can be used.

[0033] like Figure 3 As shown, the surface of the concentrator 3 is covered with a layer of gallium arsenide solar cells. It uses the concentrating effect of the fan-shaped concentrating mirror 7 to achieve high-efficiency power generation. The electricity generated by the concentrator 3 is stored in the integrated storage and storage battery 16. The materials of the concentrator 3 include, but are not limited to, copper, pure copper and other materials. The concentrator 3 has a designed circulating water channel inside to remove the excess heat generated by the concentrating of light, which plays a role in heat dissipation and can keep the concentrator 3 in a high-efficiency working state.

[0034] like Figure 6 As shown, the water-cooled circulation system, consisting of the circulating water pump 12, water tank 15, and water pipe 17, arranges water channels through reserved wiring holes and a hollow structure. The power supply for the circulating water pump 12 is taken from the integrated storage battery 16.

[0035] like Figure 4 , 5 As shown, the fan-shaped focusing reflector 7 is constructed by cutting and splicing identical spherical units. Due to the difference between a sphere and an ideal reflecting surface, parallel light will not converge at the same point after being reflected by the reflector. This design sacrifices some precision for manufacturability. The spherical focal point standard is the intersection of the reflected light path and the vertical direction at the midpoint within a fixed arc length / angle range. This design can be horizontally cut into multiple segments as needed, with the central focal point of each of the multiple spherical segments serving as the focusing point. The fan-shaped focusing reflector 7 is made of materials including, but not limited to, white resin. A reflective film or reflective material is applied to the reflector surface. A brush 8 is placed between adjacent fan-shaped focusing reflectors 7 to clean surface dust and particles while the fan-shaped focusing reflectors 7 are unfolded and retracted, thus easily keeping the fan-shaped focusing reflectors 7 in optimal condition.

[0036] The integrated storage and storage battery 16 is used to store the electricity generated by the concentrator 3, and can also supply power to the circulating water pump 12, the motor 20, and the vehicle's electrical system.

[0037] In use, first install the motor 20 on the motor mounting base 21, then connect the coupling 19 to the internal thread hollow rod 6, then fit the protective cover 11 according to the center hole position, fix the vehicle mounting base 22, and then install the rotating bracket mounting base 10, rotating bracket assembly 9, fan-shaped concentrating reflector 7, and brush 8 in sequence. After completion, test the umbrella surface opening and closing, and make timely adjustments. After the test is correct, install the external thread hollow tube 5, adjust it to the corresponding height, and use nuts to fix the concentrating battery collector 3. Finally, install the collector connection water system connector 2, and arrange the circulating water system 1 and cables along the hollow pipe to complete the assembly of the whole machine.

[0038] The fan-shaped concentrating reflector is fixed at the mounting hole 24 of the rotating bracket. The cooling liquid of the circulating water system is water, oil, or antifreeze. The cooling liquid flowing inside the concentrating cell collector is introduced and led out through the inner wire hollow rod 6. The positive and negative terminals of the battery are led out along the inner wire hollow rod 6 to the integrated storage and storage battery 16 through cable ties or other binding methods.

[0039] In this embodiment, the light is focused onto the solar cell using a fan-shaped concentrator. The concentrator collector has one side with a gallium arsenide (GaAs) solar cell facing the fan-shaped concentrator, while the other sides do not have GaAs solar cells. The concentrator collector is, but is not limited to, circular shapes, and is made of materials including, but not limited to, copper. A cooling liquid, including but not limited to, water, oil, and antifreeze, flows inside the collector to collect the additional heat generated by the GaAs solar cell. The concentrator collector is located at the focal point of the umbrella-shaped concentrator. With this structure, the solar panel receives light uniformly. The distance between the concentrator collector and the umbrella surface can be adjusted according to the size of the umbrella and the arrangement area of ​​the solar panel, through a hollow tube with external threads, allowing the concentration factor to be adjusted within 3000 times. Compared with other types of products, this method offers advantages such as high concentration, high efficiency, and low cost.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An umbrella concentrator photovoltaic power plant for a roof, characterized by, The utility model discloses a kind of solar energy power generation systems, including the concentrator collector (3) of light collection located top, the stretchable and retractable multi-piece fan-shaped light collection mirror (7) located lower part, the vehicle-mounted mounting bottom plate (22) located bottom and protective cover (11), vehicle-mounted mounting bottom plate (22) is installed with storage integrated battery (16) and motor (20) on it, water tank (15) and circulating water pump (12) are installed on the outer side of protective cover (11), through the top surface of protective cover (11), vertically installed rotatable inner wire hollow rod (6), inner wire hollow rod (6) lower end extends into protective cover (11) and is connected with motor (20) shaft, the top end of inner wire hollow rod (6) outside protective cover (11) is fixed concentrator collector (3), the surface of concentrator collector (3) is provided with gallium arsenide solar cell, and inside is provided with circulating water flow channel communicated with water tank (15) and circulating water pump (12), and multi-piece fan-shaped light collection mirror (7) is fixed in protective cover (11) outer side top surface, inner wire hollow rod (6) lower part by rotating support assembly (9), rotating inner wire hollow rod (6) drives rotating support assembly (9) to move axially along center line, and the stretchable and retractable of multi-piece fan-shaped light collection mirror (7) are realized.

2. The umbrella concentrator photovoltaic power plant for a vehicle roof according to claim 1, characterized by, The protective cover (11) is provided with an inspection window (13) on one side, and a handle (14) is installed on the inspection window (13).

3. The umbrella concentrator photovoltaic power plant for a vehicle roof according to claim 1, characterized by, The concentrator collector (3) is fixed on the top end of the inner wire hollow rod (6) by the outer wire full thread hollow pipe (5).

4. The umbrella concentrator photovoltaic power plant for a vehicle roof of claim 1, wherein, The motor (20) is fixed on the vehicle-mounted mounting bottom plate (22) by the motor fixing assembly (21), and then connected with the inner wire hollow rod (6) through the variable-diameter adapter (18) and the shaft coupling (19), and the power supply of the motor (20) is obtained from the storage integrated battery (16).

5. The umbrella concentrator photovoltaic power plant for a vehicle roof of claim 1, wherein, The fan-shaped light collection mirror (7) is composed of identical spherical surface units, and the mirror surface is attached with a reflective film or sprayed with a reflective material.

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