Photovoltaic panel, photovoltaic panel group, vehicle and household energy system

Abstract

The utility model provides a photovoltaic panel, a photovoltaic panel group, a vehicle and a household energy system. The photovoltaic panel is applied to parallel connection of a plurality of photovoltaic panels, the photovoltaic panel comprises a panel body, an electric control box, a first wiring structure and a second wiring structure, and the electric control box is arranged on the panel body and communicated with an internal circuit of the panel body; the first wiring structure comprises a first positive wire, a first negative wire and a connecting male end, the first positive wire and the first negative wire are led out from the electric control box and are connected to the connecting male end, and the first wiring structure is fixedly connected with the electric control box; the second wiring structure comprises a second positive wire, a second negative wire and a connecting female end, and the second positive wire and the second negative wire are led out from the electric control box and are connected to the connecting female end; and along the connection sequence of the plurality of photovoltaic panels, the connection male end of the previous photovoltaic panel is configured to be connected into the connection female end of the next photovoltaic panel and matched with the connection female end in a buckling manner. According to the arrangement, the wiring structure of the plurality of photovoltaic panel groups can be simplified, and the reliability of connection between the wires and the photovoltaic panels is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic panels, in particular to a photovoltaic panel, a photovoltaic panel group, a vehicle and a household energy system. BACKGROUND

[0002] The photovoltaic panel is a device capable of converting light energy into electrical energy. Currently, when multiple photovoltaic panels are connected in parallel, multiple wires are needed to connect adjacent two photovoltaic panels, and more wires are needed to connect multiple photovoltaic panels in parallel. The wiring of multiple photovoltaic panels connected in parallel is relatively scattered and complex, which leads to wiring confusion and maintenance difficulty of multiple photovoltaic panels connected in parallel. In addition, when multiple photovoltaic panels are applied to the top of a vehicle or a balcony scene, they are easily affected by the wind of the external environment and the vibration during the forward movement of the vehicle. The wire connection between adjacent two photovoltaic panels is not reliable and is easy to disconnect the connection between adjacent two photovoltaic panels. SUMMARY

[0003] Therefore, the present application provides a photovoltaic panel, a photovoltaic panel group, a vehicle and a household energy system, which can simplify the wiring structure of multiple photovoltaic panel groups and improve the reliability of the connection between the wires and the photovoltaic panels.

[0004] In a first aspect, an embodiment of the present application provides a photovoltaic panel applied to multiple photovoltaic panels connected in parallel. The photovoltaic panel comprises a panel body, an electric control box, a first wiring structure and a second wiring structure. The electric control box is arranged on the panel body and is connected to the internal circuit of the panel body. The first wiring structure comprises a first positive wire, a first negative wire and a male connection end. The first positive wire and the first negative wire are both led out from the electric control box and connected to the male connection end. The first wiring structure is fixedly connected to the electric control box. The second wiring structure comprises a second positive wire, a second negative wire and a female connection end. The second positive wire and the second negative wire are both led out from the electric control box and connected to the female connection end. According to the connection sequence of the multiple photovoltaic panels, the male connection end of a previous photovoltaic panel is configured to be connected to the female connection end of a subsequent photovoltaic panel and buckled with the female connection end.

[0005] The above arrangement can connect the first positive electrode wire and the first negative electrode wire to one connection male end to integrate the first positive electrode wire and the first negative electrode wire, so that the two wires are relatively concentrated, facilitating the management and maintenance of the first positive electrode wire and the first negative electrode wire, and can connect the second positive electrode wire and the second negative electrode wire to one connection female end to integrate the second positive electrode wire and the second negative electrode wire, so that the two wires are relatively concentrated, facilitating the management and maintenance of the second positive electrode wire and the second negative electrode wire; when connecting adjacent two photovoltaic panels, the connection male end of the previous photovoltaic panel is configured to be connected to the connection female end of the subsequent photovoltaic panel to realize the parallel connection of the two photovoltaic panels. Compared with the way of connecting the first positive electrode wire and the second positive electrode wire, the first negative electrode wire and the second negative electrode wire respectively in the related art, the connection mode of the connection male end and the connection female end simplifies the wiring structure and the wiring steps of the parallel connection of the photovoltaic panel; and the connection male end and the connection female end are also mutually clamped, so that the connection male end and the connection female end are relatively fixed, improving the stability and reliability of the connection between the connection male end and the connection female end.

[0006] In at least one embodiment, the first positive electrode wire and the first negative electrode wire are arranged side by side and located on the same side of the panel body; the second positive electrode wire and the second negative electrode wire are arranged side by side and located on the same side of the panel body; the first wiring structure and the second wiring structure are located on two sides of the panel body, respectively.

[0007] In the above arrangement, the first positive electrode wire and the first negative electrode wire, the second positive electrode wire and the second negative electrode wire can be integrated into a double-strand single wire, double-strand means one positive electrode wire and one negative electrode wire, and single means one positive electrode wire and one negative electrode wire can be wrapped into one wire, so as to facilitate the management and maintenance of the first wiring structure and the second wiring structure; and when a plurality of photovoltaic panels are connected in parallel, along the wiring sequence of the plurality of photovoltaic panels, in adjacent two photovoltaic panels, the second wiring structure of the previous photovoltaic panel is connected with the first wiring structure of the subsequent photovoltaic panel, and the second wiring structure of the previous photovoltaic panel and the first wiring structure of the subsequent photovoltaic panel are located between the two photovoltaic panels, so that the distribution of the first wiring structure and the second wiring structure is relatively concentrated, and the wiring structure of the parallel connection of the plurality of photovoltaic panels is similar to the wiring structure of the series connection, so that the wiring structure of the plurality of parallel photovoltaic panels is more simple.

[0008] In at least one embodiment, the first wiring structure further comprises a first insulating member fixedly connected with the connection male end and the electric control box, the first insulating member has two first insulating cavities, and the first positive electrode wire and the first negative electrode wire are arranged in different first insulating cavities, respectively; the second wiring structure further comprises a second insulating member fixedly connected with the connection female end and the electric control box, the second insulating member has two second insulating cavities, and the second positive electrode wire and the second negative electrode wire are arranged in different second insulating cavities, respectively.

[0009] The first positive line and the first negative line are integrated into a double-stranded single line through the first insulation piece, and insulation and electric shock prevention are achieved. The second positive line and the second negative line are integrated into a double-stranded single line through the second insulation piece, and insulation and electric shock prevention are achieved.

[0010] In at least one embodiment, the first insulation piece includes two first insulation sleeves, and the lumen of each first insulation sleeve is a first insulation cavity; and the second insulation piece includes two second insulation sleeves, and the lumen of each second insulation sleeve is a second insulation cavity.

[0011] By arranging two separate insulation sleeves to separate the positive line and the negative line, the insulation performance between the positive line and the negative line can be improved, and the problem of circuit short circuit failure caused by interference between the positive line and the negative line can be improved.

[0012] In at least one embodiment, the first insulation piece includes one first insulation sleeve and a first insulation spacer, the first insulation spacer is arranged in the lumen of the first insulation sleeve, so that the lumen of the first insulation sleeve is divided into two first insulation cavities; and the second insulation piece includes one second insulation sleeve and a second insulation spacer, the second insulation spacer is arranged in the lumen of the second insulation sleeve, so that the lumen of the second insulation sleeve is divided into two second insulation cavities.

[0013] By arranging one insulation sleeve and a spacer, and dividing the one insulation sleeve into two insulation cavities through the spacer, the integration degree of the scheme is high, so that the structure between the positive line and the negative line is more compact, and the occupied area of the wiring structure is small.

[0014] In at least one embodiment, the first wiring structure further includes a first protective sleeve, and the first protective sleeve wraps the first insulation piece; and the second wiring structure further includes a second protective sleeve, and the second protective sleeve wraps the second insulation piece.

[0015] The protective sleeve can protect and support the insulation piece, so as to improve the problem that the insulation piece is easily worn and tear, and improve the service life of the insulation piece.

[0016] In at least one embodiment, the male connector includes a male connector part and a first connecting part, the first connecting part is connected with the first positive line and the first negative line, and the male connector part and the first connecting part are detachably connected; and the female connector includes a female connector part and a second connecting part, the second connecting part is connected with the second positive line and the second negative line, and the female connector part and the second connecting part are detachably connected.

[0017] In the above arrangement, the male connector part and the first connecting part are detachably connected, and the female connector part and the second connecting part are detachably connected, so as to facilitate the maintenance of the male connector and the female connector.

[0018] In at least one embodiment, the male end of the connection comprises a first clamping portion arranged on the outer circumferential surface of the male end connection portion; the female end of the connection comprises a second clamping portion arranged on the outer circumferential surface of the female end connection portion; one of the first clamping portion and the second clamping portion has a clamping hole, and the other of the first clamping portion and the second clamping portion has a clamping protrusion, which is clamped into the clamping hole.

[0019] The detachable connection of the male end of the connection and the female end of the connection is achieved by the arrangement of the first clamping portion and the second clamping portion, and the structure between the male end of the connection and the female end of the connection is relatively stable when the male end of the connection and the female end of the connection are connected.

[0020] In a second aspect, a photovoltaic panel group is provided, comprising a plurality of photovoltaic panels, each of which is the photovoltaic panel described above, and the plurality of photovoltaic panels are arranged in parallel, and along the connection order of the plurality of photovoltaic panels, the connection female end of a previous photovoltaic panel and the connection male end of a subsequent photovoltaic panel are inserted and clamped to achieve parallel connection of the plurality of photovoltaic panels.

[0021] Along the connection order of the plurality of photovoltaic panels, the connection male end of a previous photovoltaic panel is configured to be connected to the connection female end of a subsequent photovoltaic panel to achieve parallel connection of the two photovoltaic panels. Compared with the way of connecting the first positive electrode line and the second positive electrode line, the first negative electrode line and the second negative electrode line respectively in the related art, the connection mode of the connection male end and the connection female end simplifies the wiring structure and the wiring steps of the parallel connection of the photovoltaic panels. In addition, the connection male end and the connection female end are also clamped with each other, so that the connection male end and the connection female end are relatively fixed, thereby improving the stability and reliability of the connection between the connection male end and the connection female end.

[0022] In a third aspect, a vehicle is provided, comprising a vehicle body and the photovoltaic panel described above, and the vehicle body is provided with a plurality of photovoltaic panels; the vehicle body is provided with a mounting surface on the top, and the plurality of photovoltaic panels are mounted on the mounting surface.

[0023] By applying the structure of the photovoltaic panel described above to the vehicle, the connection male end and the connection female end of the present application are also clamped with each other, so that the connection male end and the connection female end are relatively fixed, thereby improving the stability and reliability of the connection between the connection male end and the connection female end. In the process of advancing the vehicle, the connection male end and the connection female end are not easily affected by vibration and wind force and separated from each other. In addition, since the wiring structure of the parallel connection of the plurality of photovoltaic panels of the present application is relatively neat, on the one hand, the wiring structure occupies a smaller area of the mounting surface, and the fragmented space of the mounting surface can be fully utilized to place a tent or a folding chair, etc. to fully utilize the space of the mounting surface, on the other hand, the use of the support structure for fixing the wire can also be reduced, thereby reducing the wind resistance in the process of advancing the vehicle.

[0024] In a fourth aspect, a household energy system is provided, which comprises an inverter configured to be connected to an energy storage device or a power grid, and the household energy system further comprises the photovoltaic panel as described above, wherein the photovoltaic panel is provided in a plurality, the plurality of photovoltaic panels are configured to be installed on a balcony, and the plurality of photovoltaic panels are connected in parallel and connected to the inverter.

[0025] By applying the structure of the photovoltaic panel as described above to the household energy system, the parallel connection structure of the plurality of photovoltaic panels is neat and occupies less area, so that the plurality of photovoltaic panels are easy to install, and when the photovoltaic panel is in a shady place, the parallel connection structure can achieve a higher overall power than the series connection structure. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope.

[0027] Figure 1 A structure diagram of the parallel connection of the plurality of photovoltaic panels of the photovoltaic panel group according to an embodiment of the present application is shown.

[0028] Figure 2 A structure diagram of the connection of the plurality of photovoltaic panels and the inverter of the household energy system according to an embodiment of the present application is shown.

[0029] Figure 3 A structure diagram of the photovoltaic panel according to an embodiment of the present application is shown.

[0030] Figure 4 A structure diagram of the connection of the first wiring structure, the second wiring structure and the electric control box of the photovoltaic panel according to an embodiment of the present application is shown.

[0031] Figure 5 An exploded view of the electric control box of the photovoltaic panel according to an embodiment of the present application is shown. Figure 4

[0032] A structure diagram of the overall structure of the male connection and the female connection of the photovoltaic panel according to an embodiment of the present application is shown. Figure 6

[0033] A structure diagram of the separation of the male connection and the female connection of the photovoltaic panel according to an embodiment of the present application is shown. Figure 7

[0034] A structure diagram of the connection of the male connection and the female connection of the photovoltaic panel according to an embodiment of the present application is shown. Figure 8

[0035] A structure diagram of the connection of the male connection and the female connection of the photovoltaic panel according to an embodiment of the present application is shown.

[0036] ​100, photovoltaic panel; 32, first negative electrode line; 430, female end connecting part; 200, photovoltaic panel group; 33, male end connecting part; 431, second connecting part; 300, home energy system; 41, second positive electrode line; 332, first clamping part; 301, inverter; 42, second negative electrode line; 432, second clamping part; 10, panel body; 43, female end connecting part; 21, positive electrode conductive row; 20, electric control box; 34, first insulating part; 22, negative electrode conductive row; 30, first wiring structure; 44, second insulating part; 340, first insulating sleeve; 40, second wiring structure; 330, male end connecting part; 440, second insulating sleeve; 31, first positive electrode line; 331, first connecting part. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments of the present application.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0039] A photovoltaic panel is a device that can convert light energy into electrical energy and is widely used in homes, buildings, vehicles and other aspects. The photovoltaic panel is generally a solar panel. In use, the existing solar panel usually has a series, parallel or series-parallel combination of multiple solar panels to provide a larger output power.

[0040] In the related art, multiple solar panels in series require multiple sets of MPPT (Maximum Power Point Tracking, a power regulator), resulting in high loss and equipment cost, and a parallel system formed by multiple solar panels causes a complex wiring problem.

[0041] Specifically, in some embodiments of the related art, two wires are drawn from one photovoltaic panel, and in adjacent two photovoltaic panels, each wire of one photovoltaic panel is separately and detachably connected to one wire of another photovoltaic panel, so that the wiring of multiple photovoltaic panels in parallel is relatively scattered and complex, resulting in wiring confusion and maintenance difficulty of multiple photovoltaic panels in parallel. In the related art, the following application scenarios exist:

[0042] (1) When the plurality of photovoltaic panels are applied to the top of the vehicle, vibration occurs during the vehicle advancing, and the plurality of photovoltaic panels are easily affected by the wind, and in the adjacent two photovoltaic panels, the wires are detachably connected between the wires, the connection between the wires is easy to loosen, which causes the connection of the adjacent two photovoltaic panels to be interrupted, so that the parallel connection structure of the adjacent two photovoltaic panels is unreliable.

[0043] (2) When the plurality of photovoltaic panels are applied to the balcony, in rainy weather or windy weather, the photovoltaic panels will be affected by the external environment, which causes the connection of the wires of the adjacent two photovoltaic panels to be unreliable.

[0044] Embodiments of the present application provide a photovoltaic panel applied to the parallel use of a plurality of photovoltaic panels, the photovoltaic panel comprising a panel body, an electric control box, a first wiring structure and a second wiring structure, the electric control box is arranged in the panel body and is connected to the internal circuit of the panel body; the first wiring structure comprises a first positive wire, a first negative wire and a male connection end, the first positive wire and the first negative wire are both led out from the electric control box and are both connected to the male connection end, and the first wiring structure is fixedly connected with the electric control box; the second wiring structure comprises a second positive wire, a second negative wire and a female connection end, the second positive wire and the second negative wire are both led out from the electric control box and are both connected to the female connection end, and the second wiring structure is fixedly connected with the electric control box; along the connection order of the plurality of photovoltaic panels, the male connection end of a previous photovoltaic panel is configured to be connected to the female connection end of a subsequent photovoltaic panel and buckled with the female connection end.

[0045] The above-mentioned arrangement of the present application can connect the first positive wire and the first negative wire to one male connection end to integrate the first positive wire and the first negative wire, so that the two wires are relatively concentrated, thereby facilitating the management and maintenance of the first positive wire and the first negative wire, and the second positive wire and the second negative wire can also be connected to one female connection end to integrate the second positive wire and the second negative wire, so that the two wires are relatively concentrated, thereby facilitating the management and maintenance of the second positive wire and the second negative wire; when connecting adjacent two photovoltaic panels, the male connection end of a previous photovoltaic panel is configured to be connected to the female connection end of a subsequent photovoltaic panel, which can realize the parallel connection of the two photovoltaic panels, compared with the way of connecting the first positive wire and the second positive wire, the first negative wire and the second negative wire respectively in the related art, the connection mode of the male connection end and the female connection end of the present application simplifies the wiring structure and the wiring steps of the parallel connection of the photovoltaic panel, and the male connection end and the female connection end of the present application are also buckled with each other, so that the male connection end and the female connection end are relatively fixed, thereby improving the stability and reliability of the connection between the male connection end and the female connection end.

[0046] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the case of no conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0047] Please refer to Figure 1and Figure 2 An embodiment of the present application provides a photovoltaic panel 100, a photovoltaic panel group 200, a vehicle and a household energy system 300.

[0048] In the present application, the photovoltaic panel 100 includes a hard solar panel and a flexible solar panel; specifically, the hard solar panel is usually made of silicon crystal, encapsulated in a rigid frame, and the surface is covered with a layer of protective glass, which is commonly used for large-scale solar power stations, household or commercial building roof installation; the flexible solar panel uses thin-film solar technology, which is light and flexible, and is usually supported by a polymer or other flexible substrate, and is commonly used for power supply of car roofs, tents, mobile devices, drones, wearable devices and the like.

[0049] In some embodiments, the household energy system 300 includes an inverter 301 and a plurality of photovoltaic panels 100, the inverter 301 is used to connect an energy storage device or a power grid, and the plurality of photovoltaic panels 100 are used to be installed on a balcony, the plurality of photovoltaic panels 100 are arranged in parallel, and the plurality of photovoltaic panels 100 are connected with the inverter 301 to convert direct current of the photovoltaic panel 100 into alternating current through the inverter. Wherein, the inverter 301 is a micro inverter.

[0050] Specifically, the household energy system 300 further includes a distribution box, the distribution box is electrically connected with the inverter 301, the distribution box is used to be electrically connected with a household micro-grid, and direct current generated by the photovoltaic panel 100 is converted into alternating current through the micro inverter, and the alternating current is fed into the household micro-grid through the distribution box.

[0051] In some embodiments, the photovoltaic panel group 200 includes a plurality of photovoltaic panels 100, and the plurality of photovoltaic panels 100 are arranged in parallel.

[0052] Please refer to Figure 3 and Figure 4 In some embodiments, the photovoltaic panel 100 includes a panel body 10, an electric control box 20, a first wiring structure 30 and a second wiring structure 40.

[0053] Please refer to Figure 5 Specifically, the electric control box 20 is arranged on the panel body 10 and is in communication with an internal circuit of the panel body 10; the first wiring structure 30 includes a first positive wire 31, a first negative wire 32 and a connecting male terminal 33, the first positive wire 31 and the first negative wire 32 are both led out from the electric control box 20 and are both connected to the connecting male terminal 33, and the first wiring structure 30 is fixedly connected with the electric control box 20 so that the first wiring structure 30 is not easy to be separated from the electric control box 20. By connecting the first positive wire 31 and the first negative wire 32 to one connecting male terminal 33, the two wires are more concentrated, so as to facilitate the management and maintenance of the first positive wire 31 and the first negative wire 32.

[0054] Specifically, the second wiring structure 40 includes a second positive electrode wire 41, a second negative electrode wire 42, and a connecting female end 43, the second positive electrode wire 41 and the second negative electrode wire 42 are both led out from the electric control box 20 and are both connected to the connecting female end 43, the second wiring structure 40 is fixedly connected with the electric control box 20, so that the second wiring structure 40 is not easy to be separated from the electric control box 20; and the second positive electrode wire 41 and the second negative electrode wire 42 can be connected to one connecting female end, so that the two wires are relatively concentrated, thereby facilitating the management and maintenance of the second positive electrode wire 41 and the second negative electrode wire 42.

[0055] In the specific application of the present application, a plurality of photovoltaic panels 100 are connected in parallel, along the connection order of the plurality of photovoltaic panels 100, the connecting male end 33 of a previous photovoltaic panel 100 is configured to be connected to the connecting female end 43 of a subsequent photovoltaic panel 100, compared with the way of connecting the first positive electrode wire and the second positive electrode wire, the first negative electrode wire and the second negative electrode wire respectively in the related art, the arrangement of the connecting male end 33 and the connecting female end 43 of the present application simplifies the wiring structure and the wiring steps of the parallel connection of the photovoltaic panels 100; and the connecting male end 33 and the connecting female end 43 of the present application are snap-fitted, so that the connecting male end 33 and the connecting female end 43 are relatively fixed, thereby improving the stability and reliability of the connection between the connecting male end 33 and the connecting female end 43.

[0056] Please refer to Figure 4 and Figure 5 The electric control box 20 includes a positive electrode conductive row 21 and a negative electrode conductive row 22, two ends of the positive electrode conductive row 21 are connected with the first positive electrode wire 31 and the second positive electrode wire 41 respectively, and two ends of the negative electrode conductive row 22 are connected with the first negative electrode wire 32 and the second negative electrode wire 42 respectively.

[0057] In some embodiments of the related art, two adjacent photovoltaic panels are connected by two wires, two ends of one wire are connected with the positive electrodes of the two photovoltaic panels respectively, two ends of the other wire are connected with the negative electrodes of the two photovoltaic panels respectively, and the two wires are respectively located on both sides of the width / length direction of the photovoltaic panel, so that the wiring of the parallel connection of the plurality of photovoltaic panels is relatively dispersed and complicated, resulting in wiring disorder and maintenance difficulty of the parallel connection of the plurality of photovoltaic panels.

[0058] In some embodiments of the present application, the first positive electrode line 31 and the first negative electrode line 32 are arranged side by side and located on the same side of the plate body 10, so as to facilitate the integration of the first positive electrode line 31 and the first negative electrode line 32 into a double-strand single line, double-strand referring to the first positive electrode line 31 and the first negative electrode line 32, and single referring to the fact that the first positive electrode line 31 and the first negative electrode line 32 can be wrapped into one line, so as to facilitate the management and maintenance of the first positive electrode line 31 and the first negative electrode line 32; the second positive electrode line 41 and the second negative electrode line 42 are arranged side by side and located on the same side of the plate body 10, so as to facilitate the integration of the second positive electrode line 41 and the second negative electrode line 42 into a double-strand single line, double-strand referring to the second positive electrode line 41 and the second negative electrode line 42, and single referring to the fact that the second positive electrode line 41 and the second negative electrode line 42 can be wrapped into one line, so as to facilitate the management and maintenance of the second positive electrode line 41 and the second negative electrode line 42; the first wiring structure 30 and the second wiring structure 40 are located on the two sides of the plate body 10, respectively, so as to facilitate the wiring sequence along the multiple photovoltaic panels 100 when the multiple photovoltaic panels 100 are connected in parallel, in the adjacent two photovoltaic panels 100, the second wiring structure 40 of the former photovoltaic panel 100 is connected with the first wiring structure 30 of the latter photovoltaic panel 100, and the second wiring structure 40 of the former photovoltaic panel 100 and the first wiring structure 30 of the latter photovoltaic panel 100 are located between the two photovoltaic panels 100, compared with the scheme in the related art in which two wires are respectively located on the two sides of the width / length direction of the photovoltaic panel, the above-mentioned arrangement of the present application makes the distribution of the first wiring structure 30 and the second wiring structure 40 more concentrated, and makes the wiring structure of the multiple photovoltaic panels 100 connected in parallel similar to the wiring structure connected in series, so as to make the wiring structure of the multiple photovoltaic panels 100 connected in parallel more simple.

[0059] In some embodiments, the vehicle includes the photovoltaic panel 100 and the vehicle body, the photovoltaic panel 100 is provided in multiple, the multiple photovoltaic panels 100 are arranged in parallel; the vehicle body is provided with a mounting surface on the top, and the multiple photovoltaic panels 100 are all mounted on the mounting surface.

[0060] In the related art, due to the requirements of regulations, most vehicles are limited to a voltage upper limit of 60V for photovoltaic charging, and the voltage of the conventional solar panel is generally about 24V, so it is necessary to arrange two solar panels connected in series, so as to make the voltage of the multiple solar panels close to 60V and obtain a larger power, and the wiring structure of the solar panels connected in series is relatively simple, and if a larger power is desired, one way is to increase the area of the solar panels connected in series, and the disadvantage of this way is that the area of the mounting surface on the roof is limited and cannot support a too large area of the solar panel, and another way is to connect multiple groups of solar panels in parallel into the system, but the defect of the multiple solar panels connected in parallel is that the wiring is relatively complex.

[0061] In the specific embodiments of the present application, the voltage of the single photovoltaic panel 100 of the vehicle is set to 50v, the total current is set to 30A, and the output power is 130w. Then, by means of the parallel connection of the plurality of photovoltaic panels 100, the first positive electrode line 31 and the first negative electrode line 32 are integrated into a double-strand single line, and the second positive electrode line 41 and the second negative electrode line 42 are integrated into a double-strand single line. The first positive electrode line 31 and the first negative electrode line 32 are both connected to a connecting male terminal 33, and the second positive electrode line 41 and the second negative electrode line 42 are both led out from the electric control box 20 and connected to a connecting female terminal 43. The connecting male terminal 33 and the connecting female terminal 43 can be clamped to each other, so that the parallel connection structure is similar to the "series" connection structure, thereby greatly reducing the redundant wiring design, and the high voltage + large current (50v + 30A) also meets the better output power. At the same time, the parallel connection of the plurality of photovoltaic panels 100 only needs one set of MPPT, which significantly reduces the cost of the overall vehicle.

[0062] In some embodiments, the length of the first wiring structure 30 and the second wiring structure 40 of the photovoltaic panel 100 is in the range of 0.7m-1.3m. By setting in this way, the photovoltaic panel 100 can move between a distance of 0.7m-2m, so that the photovoltaic panel 100 is more flexible when arranged on the top of the vehicle.

[0063] Specifically, the width of the mounting surface is in the range of 2.2m-2.4m, and the length is in the range of 7.5m-9m. The photovoltaic panel 100 with a length of 1.3m and a width of 0.50m-0.55m can be arranged. Along the width direction of the mounting surface, four photovoltaic panels 100 with the above width can be arranged, and along the length direction of the mounting surface, three or four rows of photovoltaic panels 100 can be arranged. Specifically, ten photovoltaic panels 100 can be arranged on the mounting surface. Since the parallel connection wiring structure of the plurality of photovoltaic panels 100 of the present application is neat and occupies less area of the mounting surface, the small space of the mounting surface can be fully utilized to place a retractable tent or a folding chair and other tools to fully utilize the space of the mounting surface. If the wiring structure is complex, additional supports are needed to fix the wires. The parallel connection wiring structure of the present application is simple, which can reduce the use of support structures for fixing the wires, thereby reducing the wind resistance during the forward movement of the vehicle.

[0064] In some embodiments, the balcony is a convex balcony, and a plurality of mounting supports are arranged on the outer side of the convex balcony. The mounting supports are arranged at intervals along the circumference of the convex balcony, and at least one photovoltaic panel 100 is mounted on each mounting support.

[0065] The total power of the plurality of photovoltaic panels 100 arranged on the balcony is 500w, and the light intensity at the corner (90°) of the convex balcony has obvious differences. If two photovoltaic panels in series are arranged on both sides of the corner of the convex balcony, at least part of the corner of the convex balcony is in the shade, belongs to the weak light area, and the photoelectric conversion rate is low. Due to the different voltages in series and the same current, only a small amount of light energy at the corner can be converted into electrical energy, so that the voltage of the two photovoltaic panels in series is low. Theoretically, the comprehensive power of the two photovoltaic panels in series is 500w, and the actual power may be only 200w. If the high-voltage parallel mode is used, the voltage of the parallel photovoltaic panels 100 does not change, and the current changes. Even if the photoelectric conversion rate of the shaded area is low, the comprehensive power of the plurality of photovoltaic panels 100 in parallel can reach 330w, which is about 70% higher than that of the series mode.

[0066] Please refer to Figure 4 and Figure 5 In some embodiments, the first wiring structure 30 further comprises a first insulating piece 34 fixedly connected with the male end 33 and the electric control box 20 respectively. The first insulating piece 34 has two first insulating cavities, and the first positive line 31 and the first negative line 32 are arranged in different first insulating cavities respectively, so as to integrate the first positive line 31 and the first negative line 32 into a double-strand single line through the first insulating piece 34, and play the role of insulation and electric shock prevention.

[0067] Please refer to Figure 4 and Figure 5 In some embodiments, the second wiring structure 40 further comprises a second insulating piece 44 fixedly connected with the female end 43 and the electric control box 20. The second insulating piece 44 has two second insulating cavities, and the second positive line 41 and the second negative line 42 are arranged in different second insulating cavities respectively, so as to integrate the second positive line 41 and the second negative line 42 into a double-strand single line through the second insulating piece 44, and play the role of insulation and electric shock prevention.

[0068] Please refer to Figure 4 and Figure 5 In some embodiments, the first insulating piece 34 comprises two first insulating sleeves 340, and the lumen of each first insulating sleeve 340 is a first insulating cavity. The second insulating piece 44 comprises two second insulating sleeves 440, and the lumen of each second insulating sleeve 440 is a second insulating cavity. By arranging two separate insulating sleeves to separate the positive line and the negative line, the insulation performance between the positive line and the negative line can be improved, and the problem of circuit short circuit fault caused by interference between the positive line and the negative line can be improved.

[0069] Please refer to Figure 4 andFigure 5 In some embodiments, the first insulating member 34 comprises a first insulating sleeve 340 and a first insulating partition (not shown) arranged in the lumen of the first insulating sleeve 340 to divide the lumen of the first insulating sleeve 340 into two first insulating cavities; and the second insulating member 44 comprises a second insulating sleeve 440 and a second insulating partition (not shown) arranged in the lumen of the second insulating sleeve 440 to divide the lumen of the second insulating sleeve 440 into two second insulating cavities. Compared with the solution of arranging two insulating sleeves separately, the solution of arranging one insulating sleeve and a partition to divide the one insulating sleeve into two insulating cavities has higher integration, and the structure between the positive electrode line and the negative electrode line is more compact, and the area occupied by the wiring structure is less.

[0070] In some embodiments, the first wiring structure 30 further comprises a first protective sleeve (not shown) wrapping the first insulating member 34; and the second wiring structure 40 further comprises a second protective sleeve (not shown) wrapping the second insulating member 44.

[0071] When the insulating member (the first insulating member 34 and the second insulating member 44 described above) is arranged with two separate insulating sleeves, the protective sleeve can play the role of integrating the two insulating sleeves, and the protective sleeve can improve the problem that the two insulating sleeves are prone to wear and tear, so as to improve the service life of the two insulating sleeves.

[0072] When the insulating member (the first insulating member 34 and the second insulating member 44 described above) is arranged with one insulating sleeve and an insulating partition, the connection between the insulating partition and the insulating sleeve is relatively weak, the protective sleeve can play the role of protecting and supporting the insulating member, and improve the problem that the insulating member is prone to wear and tear, so as to improve the service life of the insulating member.

[0073] In some embodiments, the insulating partition is in a plate structure or a sheet structure.

[0074] Please refer to Figure 6 , Figure 7 and Figure 8 In some embodiments, the male end 33 comprises a male end connecting portion 330 and a first connecting portion 331 connected with the first positive electrode line 31 and the first negative electrode line 32, and the male end connecting portion 330 and the first connecting portion 331 are detachably connected to facilitate the maintenance of the male end 33; and the female end 43 comprises a female end connecting portion 430 and a second connecting portion 431 connected with the second positive electrode line 41 and the second negative electrode line 42, and the female end connecting portion 430 and the second connecting portion 431 are detachably connected to facilitate the maintenance of the female end 43.

[0075] In some embodiments, the first connecting part 331 and the second connecting part 431 have the same structure. The first connecting part 331 can be sleeved on the male connecting part 330 or the female connecting part 430 and fixedly connected with the male connecting part 330 or the female connecting part 430, and the second connecting part 431 can be sleeved on the male connecting part 330 or the female connecting part 430 and fixedly connected with the male connecting part 330 or the female connecting part 430, so as to adjust the positions of the male connecting part 330 and the female connecting part 430 according to the actual wiring condition and improve the flexibility of wiring.

[0076] In addition, when it is necessary to adjust the wiring length, at least one lengthened wire structure can be added between the first wiring structure 30 and the second wiring structure 40 of two photovoltaic panels 100, and the two ends of each lengthened wire structure are respectively provided with a connecting male end 33 and a connecting female end 43. The connecting male end 33 and the connecting female end 43 of the lengthened wire structure are connected with the first wiring structure 30 and the second wiring structure 40 of the adjacent two photovoltaic panels 100, so as to adapt to the arrangement of multiple photovoltaic panels 100 with different distances.

[0077] Specifically, the female connecting part 430 has a slot, and the male connecting part 330 is inserted into the slot and conductively connected with the female connecting part 430.

[0078] Please refer to Figure 6 , Figure 7 and Figure 8 In some embodiments, the connecting male end 33 comprises a first clamping part 332 arranged on the outer circumferential surface of the male connecting part 330, and the connecting female end 43 comprises a second clamping part 432 arranged on the outer circumferential surface of the female connecting part 430. One of the first clamping part 332 and the second clamping part 432 has a clamping hole, and the other of the first clamping part 332 and the second clamping part 432 has a clamping protrusion. The clamping protrusion is clamped into the clamping hole to realize detachable connection of the connecting male end 33 and the connecting female end 43, and when the connecting male end 33 and the connecting female end 43 are connected, the structure between the connecting male end 33 and the connecting female end 43 is relatively stable.

[0079] In some embodiments, the first clamping part 332 and the second clamping part 432 are both provided with two, and the two first clamping parts 332 and the two second clamping parts 432 are arranged in one-to-one correspondence. The two first clamping parts 332 are oppositely arranged and both arranged on the outer circumferential surface of the male connecting part 330, and the two second clamping parts 432 are oppositely arranged and both arranged on the outer circumferential surface of the female connecting part 430. By providing two first clamping parts 332 and two second clamping parts 432, a connecting line is formed when the two first clamping parts 332 and the two second clamping parts 432 are connected, so as to improve the connection stability between the connecting male end 33 and the connecting female end 43.

[0080] In some embodiments, the connecting male end 33 and the connecting female end 43 are LFB-40 fittings.

[0081] In addition, those skilled in the art will appreciate that the above embodiments are merely illustrative of the application and should not be construed as limiting the scope of the application in any way.

Claims

1. A photovoltaic panel, used in parallel connection of multiple photovoltaic panels, characterized in that, The photovoltaic panel includes: plate body; An electrical control box is disposed on the board and connected to the internal circuitry of the board. The first wiring structure includes a first positive wire, a first negative wire, and a male connection terminal. Both the first positive wire and the first negative wire are led out from the electrical control box and connected to the male connection terminal. The first wiring structure is fixedly connected to the electrical control box. The second wiring structure includes a second positive wire, a second negative wire, and a connecting female terminal. Both the second positive wire and the second negative wire are led out from the electrical control box and are connected to the connecting female terminal. Along the connection sequence of the plurality of photovoltaic panels, the male connection terminal of the preceding photovoltaic panel is configured to connect to the female connection terminal of the following photovoltaic panel and engage with the female connection terminal.

2. The photovoltaic panel according to claim 1, characterized in that, The first positive electrode line and the first negative electrode line are arranged side by side and located on the same side of the plate. The second positive electrode line and the second negative electrode line are arranged side by side and located on the same side of the plate. The first wiring structure and the second wiring structure are located on both sides of the plate.

3. The photovoltaic panel according to claim 2, characterized in that, The first wiring structure further includes a first insulating component, which is fixedly connected to the male terminal and the electrical control box respectively. The first insulating component has two first insulating cavities, and the first positive wire and the first negative wire are respectively disposed in different first insulating cavities. The second wiring structure further includes a second insulating component, which is fixedly connected to the connecting female terminal and the electrical control box. The second insulating component has two second insulating cavities, and the second positive wire and the second negative wire are respectively disposed in different second insulating cavities.

4. The photovoltaic panel according to claim 3, characterized in that, The first insulating element includes two first insulating sleeves, the lumen of each first insulating sleeve being a first insulating cavity; the second insulating element includes two second insulating sleeves, the lumen of each second insulating sleeve being a second insulating cavity; or The first insulating element includes a first insulating sleeve and a first insulating isolator. The first insulating isolator is disposed within the cavity of the first insulating sleeve to divide the cavity of the first insulating sleeve into two first insulating cavities. The second insulating element includes a second insulating sleeve and a second insulating isolator. The second insulating isolator is disposed within the cavity of the second insulating sleeve to divide the cavity of the second insulating sleeve into two second insulating cavities.

5. The photovoltaic panel according to claim 3, characterized in that, The first wiring structure also includes a first protective sleeve, which wraps around the first insulating component; The second wiring structure also includes a second protective sleeve, which wraps around the second insulating component.

6. The photovoltaic panel according to any one of claims 1 to 5, characterized in that, The male terminal includes a male terminal connection part and a first connection part, the first connection part being connected to the first positive line and the first negative line, and the male terminal connection part and the first connection part being detachably connected; The female connector includes a female connector portion and a second connector portion. The second connector portion is connected to the second positive wire and the second negative wire. The female connector portion and the second connector portion are detachably connected.

7. The photovoltaic panel according to claim 6, characterized in that, The male connector includes a first snap-fit ​​portion disposed on the outer peripheral surface of the male connector portion; the female connector includes a second snap-fit ​​portion disposed on the outer peripheral surface of the female connector portion. One of the first latching portion and the second latching portion has a card interface, and the other of the first latching portion and the second latching portion has a latching protrusion, which is latched into the card interface.

8. A photovoltaic panel assembly, characterized in that, The device includes multiple photovoltaic panels, each of which is a photovoltaic panel as described in any one of claims 1 to 7. The multiple photovoltaic panels are arranged in parallel, and along the connection sequence of the multiple photovoltaic panels, the female connection end of the preceding photovoltaic panel and the male connection end of the following photovoltaic panel are inserted and snapped together to realize the parallel connection of the multiple photovoltaic panels.

9. A vehicle, characterized in that, include: The photovoltaic panel according to any one of claims 1 to 7, wherein the photovoltaic panel is provided with a plurality of components; The vehicle body has a mounting surface on its top, and multiple photovoltaic panels are mounted on the mounting surface.

10. A home energy system, characterized in that, The system includes an inverter for connecting to an energy storage device or a power grid. The home energy system also includes a photovoltaic panel as described in any one of claims 1 to 7. Multiple photovoltaic panels are provided, and the multiple photovoltaic panels are installed on a balcony. The multiple photovoltaic panels are connected in parallel, and each of the multiple photovoltaic panels is connected to the inverter.

Images