Power generation device and battery energy storage system

Abstract

The utility model provides a power generation device. The power generation device comprises a supporting assembly, a lifting assembly and a photovoltaic power generation panel. A heat dissipation structure is arranged on the supporting assembly, the photovoltaic power generation panel is arranged on one side of the supporting assembly through the lifting assembly, and the lifting assembly and the heat dissipation structure are correspondingly arranged, so that the lifting assembly dissipates heat through heat conduction of the heat dissipation structure. The heat dissipation structure arranged on the supporting assembly facilitates heat dissipation of the lifting assembly, heat of the side, close to the supporting assembly, of the photovoltaic power generation panel is easy to conduct, heat dissipation and cooling are conducted on the photovoltaic power generation panel, then normal work of the photovoltaic power generation panel is guaranteed, and the power generation amount and the power generation efficiency are guaranteed. The utility model further provides a battery energy storage system which has the above beneficial effects.

Description

Technical Field

[0001] The present application relates to a field, and more specifically, to a power generation device and a battery energy storage system. Background Art

[0002] In some related technologies, photovoltaic panels and lifting components are installed on the energy storage box by setting a bottom plate or a base. The lifting components will generate heat during operation, and the temperature of the photovoltaic panels will increase under the light and affected by the ambient temperature. The setting of the bottom plate and the base is not conducive to the heat dissipation of the lifting components and the setting of the cooling fan, which in turn affects the heat dissipation of the photovoltaic panels. When photovoltaic panels are affected by high temperatures, the overall power generation and power generation efficiency will decrease, making it impossible to output stable and continuous direct current, affecting the conversion of light energy into electrical energy. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a power generation device that can improve the technical problem in the related art that the power generation and power generation efficiency of the photovoltaic panels are reduced due to the difficulty in heat dissipation of the lifting components and the photovoltaic panels.

[0004] In a first aspect, an embodiment of the present application provides a power generation device for converting solar energy into electrical energy.

[0005] The power generation device includes:

[0006] Support components;

[0007] a lifting assembly mounted on the supporting assembly; and

[0008] A photovoltaic power generation panel connected to the lifting assembly;

[0009] Among them, the lifting component is used to drive the photovoltaic panel to move in a direction close to or away from the supporting component. A heat dissipation structure is provided on the supporting component. The lifting component is arranged corresponding to the heat dissipation structure. The heat dissipation structure is used to promote heat conduction to dissipate heat from the lifting component.

[0010] In one embodiment, the supporting assembly includes a bearing portion, the lifting assembly is installed on the bearing portion, the heat dissipation structure is a plurality of heat dissipation holes arranged on the bearing portion, the lifting assembly is arranged corresponding to at least one of the heat dissipation holes, and the heat dissipation holes are used to promote airflow to dissipate heat from the lifting assembly.

[0011] In one embodiment, the bearing portion includes a plurality of first brackets and a plurality of second brackets;

[0012] Each of the first brackets extends along a first direction, a plurality of the first brackets are arranged along a second direction, each of the second brackets extends along the second direction, a plurality of the second brackets are arranged along the first direction, the first direction intersects with the second direction, and a plurality of the first brackets are connected with a plurality of the second brackets to form a grid structure;

[0013] The lifting assembly is installed on the grid structure, and two adjacent first brackets and two adjacent second brackets intersect to form the heat dissipation hole.

[0014] In one embodiment, the support assembly further includes a support frame, and part of the bearing portion is embedded in the support frame.

[0015] In one embodiment, the number of the bearing parts is two, the two bearing parts are spaced apart in the support frame, a heat dissipation channel is provided between the two bearing parts, and the heat dissipation channel connects two sides of the support frame.

[0016] In one embodiment, the support frame has a first surface and a second surface opposite to each other, and the bearing portion further comprises:

[0017] An overlapping sub-portion, the overlapping sub-portion overlapping the first surface of the support frame;

[0018] A plurality of connecting sub-parts are located in the support frame, each of the connecting sub-parts extends between the first surface of the support frame and the second surface of the support frame, and one connecting sub-part is correspondingly connected between one of the second brackets and the overlapping sub-part;

[0019] A plurality of the first brackets, a plurality of the second brackets and a plurality of the connecting sub-parts form a receiving space, and the lifting assembly is disposed in the receiving space.

[0020] In one embodiment, the accommodation space is reused as a heat dissipation cavity, and the heat dissipation cavity is connected to the heat dissipation hole.

[0021] In one embodiment, the support frame includes a plurality of connected beam structures, the width of each of the beam structures is greater than the width of one of the first brackets, and the width of each of the beam structures is greater than the width of one of the second brackets.

[0022] In one embodiment, the plurality of beam structures include two first side beams, two second side beams and a plurality of middle beams, the first side beams extend along the first direction, the second side beams extend along the second direction, the two first side beams and the two second side beams are connected end to end in sequence, and the middle beam is connected and arranged between the two first side beams;

[0023] The overlapping sub-portion includes two first overlapping sub-portions and two second overlapping sub-portions, the first overlapping sub-portions extend along the first direction, the second overlapping sub-portions extend along the second direction, the two first overlapping sub-portions and the two second overlapping sub-portions are connected end to end in sequence, and the first overlapping sub-portion is connected to an end of the connecting sub-portion away from the second bracket;

[0024] The first overlapping sub-portion overlaps the first surfaces of the plurality of the middle beams, and the second overlapping sub-portion correspondingly overlaps the first surface of the second side beam.

[0025] In one embodiment, the first bracket is located at a side of the support frame away from the overlapping sub-portion, and the first bracket abuts against the second surfaces of the plurality of middle beams.

[0026] In one embodiment, the support assembly further includes an articulated bracket, one end of the articulated bracket abuts against the first surface of the middle beam, the other end of the articulated bracket abuts against the photovoltaic panel, and the articulated bracket is spaced apart from the bearing portion.

[0027] In one embodiment, the support frame is arranged on an external energy storage box;

[0028] The support frame includes a plurality of side beams, each of which has an air inlet channel between it and the top wall of the energy storage box, and the air inlet channel is connected to the heat dissipation hole.

[0029] In one embodiment, the power generation device further includes a heat dissipation fan, which is disposed on the support assembly and located between the support assembly and the photovoltaic power generation panel, and is used to promote heat conduction to dissipate heat from the photovoltaic power generation panel.

[0030] In a second aspect, an embodiment of the present application provides a battery energy storage system, comprising the above-mentioned power generation device and an energy storage box, wherein the power generation device is mounted on the energy storage box.

[0031] The beneficial effect of the power generation device provided by the embodiment of the present application is that: compared with the related art, the power generation device of the present application includes a support assembly, a lifting assembly and a photovoltaic power generation panel. A heat dissipation structure is provided on the support assembly, and the photovoltaic power generation panel is arranged on one side of the support assembly through the lifting assembly. The lifting assembly and the heat dissipation structure are arranged correspondingly, so that the lifting assembly dissipates heat through heat conduction of the heat dissipation structure. The heat dissipation structure provided on the support assembly helps the lifting assembly to dissipate heat, and makes it easy to conduct the heat of the photovoltaic power generation panel close to the side of the support assembly to dissipate heat and cool the photovoltaic power generation panel, thereby ensuring the normal operation of the photovoltaic power generation panel, and ensuring the power generation and power generation efficiency. The embodiment of the present application also provides a battery energy storage system with the above-mentioned beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0033] Figure 1 A schematic diagram of a three-dimensional structure of a power generation device provided in one embodiment of the present application;

[0034] Figure 2 Another schematic diagram of a three-dimensional structure of a power generation device provided in one embodiment of the present application;

[0035] Figure 3 A schematic diagram of the explosion structure of a power generation device provided in one embodiment of the present application;

[0036] Figure 4 A schematic diagram of the three-dimensional structure of a support frame and an articulated bracket in a power generation device provided in an embodiment of the present application;

[0037] Figure 5 A schematic diagram of the three-dimensional structure of a bearing portion in a power generation device provided in an embodiment of the present application;

[0038] Figure 6 A schematic diagram of a three-dimensional structure of a support assembly, a lifting assembly and a heat dissipation fan provided in an embodiment of the present application;

[0039] Figure 7 Another schematic diagram of the three-dimensional structure of the support assembly, the lifting assembly and the heat dissipation fan provided in one embodiment of the present application;

[0040] Figure 8 A schematic diagram of the three-dimensional structure of a battery energy storage system provided in another embodiment of the present application;

[0041] Fig. 9 A schematic diagram of an exploded structure of a battery energy storage system provided in another embodiment of the present application;

[0042] Among them, the reference numerals in the figure are:

[0043] 1000, battery energy storage system; 100, power generation device; 200, energy storage box; 110, support assembly; 120, lifting assembly; 130, photovoltaic power generation panel; 140, heat dissipation fan; 111, bearing part; 112, support frame; 113, hinged bracket; 121, base; 122, telescopic rod; K, heat dissipation structure; J1, first bracket; J2, second bracket; J3, connecting sub-part; D, overlapping sub-part; D1, first overlapping sub-part; D2, second overlapping sub-part; X, first direction; Y, second direction; S1, first surface; S2, second surface; U, accommodating space;

[0044] L1, first side beam; L2, second side beam; L3, middle beam; T1, heat dissipation channel; T2, air inlet channel. DETAILED DESCRIPTION

[0045] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0046] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0047] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0049] Please also read Figures 1 to 7 Now, a power generation device 100 provided in an embodiment of the present application is described. The power generation device 100 is used to convert solar energy into electrical energy. Figure 1 and Figure 2As shown, the power generation device 100 includes a support assembly 110, a lifting assembly 120, a photovoltaic power generation panel 130 and a heat dissipation fan 140. The lifting assembly 120 is installed on the support assembly 110, and the photovoltaic power generation panel 130 is connected to the end of the lifting assembly 120 away from the support assembly 110. Among them, the lifting assembly 120 is used to drive the photovoltaic power generation panel 130 to move in a direction close to or away from the support assembly 110. A heat dissipation structure K is provided on the support assembly 110, and the lifting assembly 120 is correspondingly arranged with the heat dissipation structure K. The heat dissipation structure K is used to promote heat conduction to dissipate heat from the lifting assembly 120.

[0050] Optionally, the heat dissipation structure K is a heat dissipation hole, which dissipates the heat of the lifting assembly 120 by promoting airflow. Alternatively, optionally, in some other embodiments, the heat dissipation structure K is a liquid cooling plate, which is arranged in the through hole of the support assembly 110, and the through hole connects the inside of the support assembly 110 and the outside. The liquid cooling plate transfers the heat dissipated by the lifting assembly 120 in the support assembly 110 to the outside of the support assembly 110 through the heat conduction of the liquid. Optionally, the heat dissipation structure K can also be a heat-conducting metal plate, such as an aluminum plate, which is arranged in the through hole of the support assembly 110, and the through hole connects the inside of the support assembly 110 and the outside. The aluminum plate transfers the heat dissipated by the lifting assembly 120 in the support assembly 110 to the outside of the support assembly 110 through heat conduction.

[0051] Specifically, when the heat dissipation structure K is a heat dissipation hole, the orthographic projection of the lifting assembly 120 on the support assembly 110 at least partially covers the heat dissipation structure K. When the heat dissipation structure K is a liquid cooling plate or a heat conductive metal plate, the orthographic projection of the lifting assembly 120 on the support assembly 110 at least partially covers the heat dissipation structure K and contacts the heat dissipation structure K.

[0052] In the power generation device 100 of the present application, a heat dissipation structure K is provided on the support assembly 110, and the photovoltaic power generation panel 130 is provided on one side of the support assembly 110 through the lifting assembly 120. The lifting assembly 120 is provided corresponding to the heat dissipation structure K, so that the lifting assembly 120 dissipates heat through heat conduction of the heat dissipation structure K. The heat dissipation structure K provided on the support assembly 110 helps the lifting assembly 120 to dissipate heat, and makes it easy to conduct the heat of the photovoltaic power generation panel 130 close to the support assembly 110, so as to dissipate heat and cool down the photovoltaic power generation panel 130, thereby ensuring the normal operation of the photovoltaic power generation panel 130, and ensuring the power generation amount and power generation efficiency.

[0053] Specifically, the support assembly 110 includes a bearing portion 111, and the lifting assembly 120 is installed on the bearing portion 111. The lifting assembly 120 includes a base 121 and a telescopic rod 122. Figure 3As shown. The base 121 and the heat dissipation fan 140 are spaced apart on the same side of the bearing portion 111, and the photovoltaic power generation panel 130 is located on the side of the base 121 away from the bearing portion 111. That is, the base 121 and the heat dissipation fan 140 are located between the bearing portion 111 and the photovoltaic power generation panel 130. One end of the telescopic rod 122 is assembled in the base 121, and the other end is connected to the photovoltaic power generation panel 130. Optionally, the photovoltaic power generation panel 130 and the telescopic rod 122 are movably connected by a hinge (not shown). Due to the setting of the hinge, the telescopic rod 122 and the photovoltaic power generation panel 130 can rotate relative to each other so that the angle can be changed. In the process of the telescopic rod 122 being extended or shortened by the base 121, the angle between the telescopic rod 122 and the photovoltaic power generation panel 130 can be changed, thereby avoiding damage to the photovoltaic power generation panel 130 when the angle changes. Among them, the heat dissipation structure K is a plurality of heat dissipation holes arranged on the bearing portion 111, and the lifting assembly 140 is arranged corresponding to at least one heat dissipation hole. As shown Figure 3 As shown, the orthographic projection of the base 121 on the bearing portion 111 covers at least one heat dissipation hole, which is used to promote airflow inside and outside the bearing portion 111 to dissipate heat for the lifting assembly 140, and the heat dissipation hole allows air to flow easily on the side of the photovoltaic panel 130 close to the supporting assembly 120 to dissipate heat and cool the photovoltaic panel 130.

[0054] In this embodiment, if Figure 4 As shown, the support assembly 110 also includes a support frame 112. The support frame 112 has a first surface S1 and a second surface S2 opposite to each other. It should be noted that the first surface S1 of the support frame 112 is a surface facing the photovoltaic power generation panel 130, that is, the photovoltaic power generation panel 130 is located on the first surface S1 side of the support frame 112. The second surface S2 of the support frame 112 is a surface away from the photovoltaic power generation panel 130.

[0055] A portion of the bearing portion 111 is fixed to the first surface S1 of the support frame 112 or the second surface S2 of the support frame 112. By fixing the portion of the bearing portion 111 to the first surface S1 or the second surface S2 of the support frame 112, the support frame 112 supports the bearing portion 111, further enhancing the bearing capacity of the bearing portion 111 for the lifting assembly 120 and the photovoltaic panel 130. Another portion of the bearing portion 111 is embedded in the support frame 112. By embedding the portion of the bearing portion 111 in the support frame 112, the space occupied by the support assembly 110 can be reduced.

[0056] like Figure 5As shown, the bearing portion 111 includes a lapped sub-portion D, a plurality of connecting sub-portions J3, a plurality of first brackets J1, and a plurality of second brackets J2. The bearing portion 111 is overlapped with the support frame 112 through the lapped sub-portion D, a plurality of first brackets J1 and a plurality of second brackets J2 are cross-connected to form a network structure to carry the lifting assembly 120 and the photovoltaic panel 130, and the connecting sub-portion J3 is used to connect the lapped sub-portion D and the first bracket J1 or the second bracket J2.

[0057] Specifically, the support frame 112 includes a plurality of connected beam structures. The width of each beam structure is greater than the width of a first bracket J1, and the width of each beam structure is greater than the width of a second bracket J2. It can be understood that by setting a larger width of the beam structure, the support force of the support frame 112 on the bearing portion 111 can be further improved.

[0058] like Figure 4 As shown, the multiple beam structure includes four side beams and multiple middle beams L3. The width of each side beam is respectively greater than the width of the first bracket J1 and the width of the second bracket J2. The width of each middle beam L3 is also respectively greater than the width of the first bracket J1 and the width of the second bracket J2. The four side beams include two first side beams L1 and two second side beams L2. The first side beam L1 extends along the first direction X, and the second side beam L2 extends along the second direction Y. The first direction X and the second direction Y are both parallel to the first surface S1. The two first side beams L1 and the two second side beams L2 are connected end to end in sequence to form a rectangular frame. A lifting block is provided at the connection between the first side beam L1 and the second side beam L2 to reinforce the connection between the first side beam L1 and the second side beam L2. Further, a lifting lug is provided on the first surface S1 of the lifting block to facilitate the lifting and installation of the power generation device 100. The middle beam L3 is connected and arranged between the two first side beams L1 to divide the space in the support frame 112 into multiple areas.

[0059] Optionally, the first direction X is the length direction of the power generation device 100, and the second direction Y is the width direction of the power generation device 100, that is, the first side beam L1 is a longitudinal beam, and the second side beam L2 is a transverse beam. Alternatively, the first direction X is the width direction of the power generation device 100, and the second direction Y is the length direction of the power generation device 100, that is, the first side beam L1 is a transverse beam, and the second side beam L2 is a longitudinal beam. In this embodiment, the first direction X is taken as the length direction of the power generation device 100 for illustration.

[0060] like Figure 6 and Figure 7As shown, the overlapping sub-portion D overlaps the first surface S1 of the support frame 112 and is fixed to the support frame 112 by a "J"-shaped fixed sheet metal. The first bracket J1 is located on the side of the support frame 112 away from the overlapping sub-portion D, and the first bracket J1 abuts against the second surface S2 of the support frame 112. The second bracket J2 is located between the first bracket J1 and the overlapping sub-portion D, and the second bracket J2 abuts against the first bracket J1 and is fixedly connected at the intersection. The connecting sub-portion J3 is located in the support frame 112 and extends between the first surface S1 of the support frame 112 and the second surface S2 of the support frame 112. A connecting sub-portion J3 is correspondingly connected between a second bracket J2 and the overlapping sub-portion D, so that the first bracket J1, the second bracket J2, the connecting sub-portion J3 and the overlapping sub-portion D are connected to form a whole. The bearing portion 111 is provided with an overlapping sub-portion D overlapping the first surface S1 of the support frame 112 to improve the bearing capacity of the bearing portion 111. Since the overlapping sub-portion D overlaps the first surface S1 of the support frame 112, the first bracket J1 abuts against the second surface S2 of the support frame 112, and the overlapping sub-portion D and the first bracket J1 are connected through the connecting sub-portion J3 and the second bracket J2, the support frame 112 forms a limit for the bearing portion 111, further fixing the bearing portion 111 and the support frame 112, and improving the stability of the bearing portion 111 and the support frame 112.

[0061] Specifically, the overlapping sub-portion D includes two first overlapping sub-portions D1 and two second overlapping sub-portions D2. The first overlapping sub-portion D1 extends along the first direction X, and the second overlapping sub-portion D2 extends along the second direction Y. The two first overlapping sub-portions D1 and the two second overlapping sub-portions D2 are connected end to end in sequence to form a frame structure. A second overlapping sub-portion D2 is correspondingly overlapped on the first surface S1 of a second side beam L2 to obtain support. The first overlapping sub-portion D1 is connected to an end of the connecting sub-portion J3 away from the second bracket J2 in its extension direction, and is overlapped on the first surface S1 of multiple middle beams L3. That is, the first overlapping sub-portion D1 passes through the multiple middle beams L3 between the two second side beams L2 and the multiple areas separated by the middle beams L3. When it is located above the area separated by the middle beams L3, the first overlapping sub-portion D1 is respectively connected to the multiple connecting sub-portions J3. When the first overlapping sub-portion D1 is located above the middle beam L3, the first overlapping sub-portion D1 is overlapped on the first surface S1 of the middle beam L3, such as Figure 6 Since the first overlapping sub-portion D1 spans across multiple middle beams L3 and overlaps multiple middle beams L3, the bearing capacity of the bearing portion 111 is further improved. It can be understood that the multiple connecting sub-portions J3 are distributed in multiple areas separated by the middle beams L3 to avoid the middle beams L3.

[0062] The first bracket J1 extends along the first direction X, spanning through the middle beams L3 between the two second side beams L2 and the middle beams L3. The first bracket J1 abuts against the second surface S2 of the middle beam L3 at the corresponding middle beam L3. Figure 7 .

[0063] The plurality of first brackets J1, the plurality of second brackets J2 and the plurality of connecting sub-parts J3 form a receiving space U, and the base 121 is located in the receiving space U. Figure 6 Since the support frame 112 is provided with four middle beams L3, in this embodiment, the accommodation space U of the bearing part 111 in the support frame 112 is divided into five sub-spaces by the middle beams L3. The bearing part 111 is recessed from the first surface S1 of the support frame 112 through the connecting sub-part J3 to form the accommodation space U, and the base 121 is arranged in the accommodation space U. The base 121 is partially hidden in the area inside the support frame 112, which can save space and further reduce the overall thickness of the power generation device 100.

[0064] like Figure 5 and Figure 6 As shown, each first bracket J1 extends along the first direction X, and multiple first brackets J1 are arranged along the second direction Y. Each second bracket J2 extends along the second direction Y, and multiple second brackets J2 are arranged along the first direction X. The first direction X intersects with the second direction Y, and multiple first brackets J1 are fixedly connected with multiple second brackets J2 to form a grid structure. In this embodiment, the first bracket J1 and the second bracket J2 are welded and fixed at the intersection. The lifting assembly 120 is installed on the grid structure, and the bearing part 111 supports the lifting assembly 120 and the photovoltaic power generation panel 130 connected to the lifting assembly 120. Multiple first brackets J1 and multiple second brackets J2 cross to form a grid structure, which can further improve the bearing capacity of the bearing part 111.

[0065] Optionally, the base 121 and the heat dissipation fan 140 may be fixed to the first bracket J1 and the second bracket J2 by ​​a fixing structure such as an X-shaped fixing piece or a cable tie.

[0066] Optionally, the first direction X intersects the second direction Y perpendicularly, or the angle between the first direction X and the second direction Y is 60°. In this embodiment, the first direction X intersects the second direction Y perpendicularly. Optionally, the first bracket J1 and the second bracket J2 are supported by alloys such as steel, which have a strong bearing capacity.

[0067] Two adjacent first brackets J1 and two adjacent second brackets J2 intersect to form heat dissipation holes, that is, the meshes in the grid structure formed by the first bracket J1 and the second bracket J2 are heat dissipation holes. Multiple first brackets J1 and multiple second brackets J2 intersect to form multiple heat dissipation holes, and the heat dissipation area is large, which is conducive to the air flow at the bearing part 111 and then to dissipate heat and cool the photovoltaic power generation panel 130. In this embodiment, the first bracket J1 and the second bracket J2 are both strip structures. Multiple first brackets J1 and multiple second brackets J2 overlap and intersect to form multiple heat dissipation holes, which not only greatly increases the area of ​​the heat dissipation structure, but also ensures the bearing capacity of the bearing part 111. Optionally, the first bracket J1 and / or the second bracket J2 can be a strip structure with a circular cross-section, or a strip structure with a square cross-section. Optionally, a second bracket J2 and two connecting sub-parts J3 connected to the two ends of the second bracket J2 are formed by bending a strip of steel bars.

[0068] In this embodiment, the support frame 112 is arranged on the external energy storage box. The accommodating space U is also reused as a heat dissipation cavity, which is connected to the heat dissipation holes. There is an air inlet channel between each side beam and the top wall of the energy storage box. External air enters the bottom of the support frame 112 from the air inlet channel, and then enters the heat dissipation cavity through the heat dissipation holes of the bearing part 111. The air flow takes away the heat emitted by the photovoltaic power generation panel 130, thereby dissipating the heat of the photovoltaic power generation panel 130.

[0069] Optionally, in this embodiment, one bearing portion 111 includes 28 second brackets J2 and 5 first brackets J1, and another bearing portion 111 includes 23 second brackets J2 and 5 first brackets J1. Optionally, the number of first brackets J1 and second brackets J2 can be adjusted according to the number of heat dissipation fans 140 and / or lifting components 120 provided on the bearing portion 111, and this application does not limit this.

[0070] Furthermore, a heat dissipation fan 140 is also disposed in the accommodation space U to ventilate and dissipate heat for the photovoltaic power generation panel 130. The heat dissipation fan 140 is used to promote heat conduction to dissipate heat for the photovoltaic power generation panel 130.

[0071] In this embodiment, the orthographic projection of the heat dissipation fan 140 on the bearing portion 111 of the support assembly 110 at least partially covers the heat dissipation structure K, that is, covers at least one heat dissipation hole. The orthographic projection of the heat dissipation fan on the support assembly 110 covers at least one heat dissipation hole, so as to draw external air from the heat dissipation hole to ventilate and cool the photovoltaic power generation panel 130, or the heat dissipation fan dissipates the high-temperature gas at the photovoltaic power generation panel 130 from the heat dissipation hole to the environment outside the power generation device 100. Since multiple first brackets J1 and multiple second brackets J2 overlap and intersect to form multiple heat dissipation holes, the heat dissipation fan is arranged in the accommodation space U, further promoting the air flow in the accommodation space U and further dissipating the heat and cooling of the photovoltaic power generation panel 130, so as to ensure the power generation and power generation efficiency of the power generation device 100 even in high-temperature areas.

[0072] Optionally, in some other embodiments, the bearing portion 111 includes a board body, and a plurality of heat dissipation holes are provided on the board body to provide a strong bearing capacity while achieving heat dissipation. The board body is arranged on the first surface S1 side of the support frame 112, and the edge of the board body overlaps the first surface S1 of the support frame 112 and is welded and fixed to the first surface S1 of the support frame 112. Alternatively, the board body is arranged on the second surface S2 side of the support frame 112, and the edge of the board body overlaps the second surface S2 of the support frame 112 and is welded and fixed to the second surface S2 of the support frame 112, and the support frame 112 and the board body form a receiving space U, and the base 121 and the heat dissipation fan 140 are arranged in the receiving space U to save space.

[0073] Optionally, in some other embodiments, the bearing portion 111 saves the arrangement of the overlapping sub-portion D and the connecting sub-portion J3, and is directly fixedly connected to the support frame 112 through the ends of the first bracket J1 and the second bracket J2. The first bracket J1 and the second bracket J2 are arranged on the first surface S1 side of the support frame 112, and the first bracket J1 and the second bracket J2 extend to the first surface S1 of the support frame 112 and are welded and fixed to the first surface S1 of the support frame 112. Alternatively, the first bracket J1 and the second bracket J2 are arranged on the second surface S2 side of the support frame 112, and the first bracket J1 and the second bracket J2 extend to the second surface S2 of the support frame 112 and are welded and fixed to the second surface S2 of the support frame 112.

[0074] Please continue reading Figure 6, the support assembly 110 also includes an articulated bracket 113. One end of the articulated bracket 113 abuts against the first surface S1 of the middle beam L3, and the other end of the articulated bracket 113 abuts against the photovoltaic panel 130. The articulated bracket 113 is spaced apart from the bearing portion 111. By arranging the articulated bracket 113 on the middle beam L3, the photovoltaic panel 130 is further supported. In this embodiment, the articulated bracket 113 is a hinge, which limits the degree of freedom of the photovoltaic panel 130 in the translation direction. The photovoltaic panel 130 and the hinge can rotate relative to each other so that the angle can be changed. The articulated bracket 113 cooperates with the lifting assembly 120 at two points so that the photovoltaic panel 130 can adjust the angle according to the movement of the sun, so that the photovoltaic panel 130 can receive more light energy.

[0075] In this embodiment, one end of the hinged bracket 113 is connected to the middle of the middle beam L3, and the other end is abutted against the center of the photovoltaic panel 130. When the telescopic rod 122 is extended or shortened, the photovoltaic panel 130 can be tilted to four sides or two sides with the center of the photovoltaic panel 130, such as Figure 2 shown.

[0076] Please continue reading Figure 6 and Figure 7 Optionally, the number of the bearing parts 111 is two. The hinged bracket 113 is arranged in the middle of the middle beam L3, and the two bearing parts 111 are spaced apart on both sides of the hinged bracket 113. There is a heat dissipation channel T1 between the two bearing parts 111, and the heat dissipation channel T1 connects the two sides of the support frame 112. It can be understood that the heat dissipation channel T1 connects the two sides of the support frame 112, and can further dissipate the heat of the photovoltaic power generation panel 130 from the lower side of the photovoltaic power generation panel 130. Alternatively, when the heat dissipation fan 140 dissipates the gas in the heat dissipation cavity from the heat dissipation holes, the heat dissipation channel T1 replenishes the gas on the lower side of the support frame 112 to the upper side of the support frame 112, so that the gas on both sides of the support frame 112 forms convection, which further promotes the heat dissipation fan 140 to dissipate the gas in the heat dissipation cavity from the heat dissipation holes.

[0077] In this embodiment, the power generation device 100 includes 4 photovoltaic power generation panels 130, 4 lifting assemblies 120, and 8 heat dissipation fans 140. One photovoltaic power generation panel 130 is correspondingly provided with one lifting assembly 120. The 4 lifting assemblies 120 are located on the same bearing part 111 or are separately arranged on two bearing parts 111. One photovoltaic power generation panel 130 is correspondingly provided with two heat dissipation fans 140. The two heat dissipation fans 140 corresponding to the same photovoltaic power generation panel 130 are respectively located on two bearing parts 111 to achieve uniform heat dissipation of the same photovoltaic power generation panel 130. A plurality of photovoltaic power generation panels 130 are arranged on a supporting assembly 110. The disassembly, transportation and installation of the plurality of photovoltaic power generation panels 130 can be achieved by disassembling, transporting and installing the power generation device 100 as a whole, without the need to install and debug the photovoltaic power generation panels 130 one by one, which greatly improves the convenience of assembly and transportation.

[0078] Please also read Figure 8 and Fig. 9 , the embodiment of the present application also provides a battery energy storage system 1000. The battery energy storage system 1000 includes the above-mentioned power generation device 100, and also includes an energy storage box 200. The battery is installed in the energy storage box 200, and the photovoltaic power generation panel 130 is electrically connected to the battery in the energy storage box 200. The electric energy converted by the photovoltaic power generation panel 130 can be stored in the battery in the energy storage box 200. The energy storage box 200 is located on the second surface S2 side of the support frame 112, and the power generation device 100 is installed on the energy storage box 200. Optionally, a fixed sheet metal is installed on the lifting block of the power generation device 100 so that the power generation device 100 is fixedly connected to the energy storage box 200. The installation of the power generation device 100 provides the energy storage box 200 with stable and reliable auxiliary system power and backup power. When the energy storage box 200 cannot be connected to three-phase power externally, auxiliary power and backup power are provided to the energy storage box 200 to ensure stable and continuous operation of the battery energy storage system 1000.

[0079] like Figure 8 As shown, the support frame 112 of the support assembly 120 in the power generation device 100 is arranged on the energy storage box 200. The support frame 112 includes a plurality of side beams. Each side beam has an air inlet channel T2 between it and the top wall of the energy storage box, and the air inlet channel T2 is connected to the heat dissipation hole, so that the air between the photovoltaic power generation panel 130 and the bearing part 111 can flow through the heat dissipation hole and the air inlet channel T2.

[0080] The above is a description of the power generation device 100 and the battery energy storage system 1000 provided in the embodiment of the present application.

[0081] The power generation device provided in the embodiment of the present application includes a support assembly, a lifting assembly and a photovoltaic power generation panel. A heat dissipation structure is provided on the support assembly, and the photovoltaic power generation panel is arranged on one side of the support assembly through the lifting assembly. The lifting assembly and the heat dissipation structure are arranged correspondingly, so that the lifting assembly dissipates heat through heat conduction of the heat dissipation structure. The heat dissipation structure provided on the support assembly helps the lifting assembly to dissipate heat, and makes it easy to conduct the heat of the photovoltaic power generation panel close to the side of the support assembly to dissipate heat and cool the photovoltaic power generation panel, thereby ensuring the normal operation of the photovoltaic power generation panel, and ensuring the power generation and power generation efficiency. The present application also provides a battery energy storage system with the above-mentioned beneficial effects.

[0082] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A power generation device for converting solar energy into electrical energy, characterized in that: The power generation device comprises: Support components; a lifting assembly mounted on the supporting assembly; and A photovoltaic power generation panel connected to the lifting assembly; Among them, the lifting component is used to drive the photovoltaic panel to move in a direction close to or away from the supporting component. A heat dissipation structure is provided on the supporting component. The lifting component is arranged corresponding to the heat dissipation structure. The heat dissipation structure is used to promote heat conduction to dissipate heat from the lifting component.

2. The power generation device according to claim 1, characterized in that: The supporting assembly includes a bearing portion, the lifting assembly is installed on the bearing portion, the heat dissipation structure includes a plurality of heat dissipation holes arranged on the bearing portion, the lifting assembly is arranged corresponding to at least one of the heat dissipation holes, and the heat dissipation hole is used to promote airflow to dissipate heat from the lifting assembly.

3. The power generation device according to claim 2, characterized in that: The bearing portion includes a plurality of first brackets and a plurality of second brackets; Each of the first brackets extends along a first direction, a plurality of the first brackets are arranged along a second direction, each of the second brackets extends along the second direction, a plurality of the second brackets are arranged along the first direction, the first direction intersects with the second direction, and a plurality of the first brackets are connected with a plurality of the second brackets to form a grid structure; The lifting assembly is installed on the grid structure, and two adjacent first brackets and two adjacent second brackets intersect to form the heat dissipation hole.

4. The power generation device according to claim 3, characterized in that: The support assembly further comprises a support frame, and part of the bearing portion is embedded in the support frame.

5. The power generation device according to claim 4, characterized in that: The number of the bearing parts is two, the two bearing parts are arranged at intervals in the support frame, a heat dissipation channel is provided between the two bearing parts, and the heat dissipation channel communicates with two sides of the support frame.

6. The power generation device according to claim 4, characterized in that: The support frame has a first surface and a second surface opposite to each other; The bearing portion further comprises: An overlapping sub-portion, the overlapping sub-portion overlapping the first surface of the support frame; A plurality of connecting sub-parts are located in the support frame, each of the connecting sub-parts extends between the first surface of the support frame and the second surface of the support frame, and one connecting sub-part is correspondingly connected between one of the second brackets and the overlapping sub-part; A plurality of the first brackets, a plurality of the second brackets and a plurality of the connecting sub-parts form a receiving space, and the lifting assembly is disposed in the receiving space.

7. The power generation device according to claim 6, characterized in that: The accommodating space is reused as a heat dissipation cavity, and the heat dissipation cavity is communicated with the heat dissipation hole.

8. The power generation device according to claim 6, characterized in that: The support frame includes a plurality of connected beam structures, the width of each beam structure is greater than the width of one of the first brackets, and the width of each beam structure is greater than the width of one of the second brackets.

9. The power generation device according to claim 8, characterized in that: The plurality of beam structures include two first side beams, two second side beams and a plurality of middle beams, the first side beams extend along the first direction, the second side beams extend along the second direction, the two first side beams and the two second side beams are connected end to end in sequence, and the middle beam is connected and arranged between the two first side beams; The overlapping sub-portion includes two first overlapping sub-portions and two second overlapping sub-portions, the first overlapping sub-portions extend along the first direction, the second overlapping sub-portions extend along the second direction, the two first overlapping sub-portions and the two second overlapping sub-portions are connected end to end in sequence, and the first overlapping sub-portion is connected to an end of the connecting sub-portion away from the second bracket; The first overlapping sub-portion overlaps the first surfaces of the plurality of the middle beams, and the second overlapping sub-portion correspondingly overlaps the first surface of the second side beam.

10. The power generation device according to claim 9, characterized in that: The first bracket is located at a side of the support frame away from the overlapping sub-portion, and the first bracket abuts against the second surfaces of the plurality of middle beams.

11. The power generation device according to claim 9, characterized in that: The support assembly further comprises an articulated bracket, one end of which abuts against the first surface of the middle beam, and the other end of which abuts against the photovoltaic panel, and the articulated bracket is spaced apart from the bearing portion.

12. The power generation device according to claim 4, characterized in that: The support frame is arranged on the external energy storage box; The support frame includes a plurality of side beams, each of which has an air inlet channel between it and the top wall of the energy storage box, and the air inlet channel is connected to the heat dissipation hole.

13. The power generation device according to any one of claims 1 to 12, characterized in that: The power generation device also includes a heat dissipation fan, which is arranged on the support assembly and located between the support assembly and the photovoltaic power generation panel. The heat dissipation fan is used to promote heat conduction to dissipate heat from the photovoltaic power generation panel.

14. A battery energy storage system, characterized in that: It comprises the power generation device as described in any one of claims 1 to 13, and also comprises an energy storage box, and the power generation device is installed on the energy storage box.

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