Low-carbon temperature-control photovoltaic power generation device

Abstract

The utility model discloses a low-carbon temperature control photovoltaic power generation device which comprises a support, a photovoltaic power generation assembly and a temperature control assembly, and the temperature control assembly is connected to the bottom face of the photovoltaic power generation assembly. The photovoltaic power generation assembly comprises a battery square matrix module and a side seam reflection module, the battery square matrix module comprises a plurality of photovoltaic battery units distributed in an array, a gap is formed between every two adjacent photovoltaic battery units, the side seam reflection module comprises a plurality of reflection strips, and each reflection strip is located on the corresponding gap; the temperature control assembly comprises a temperature control plate and a plurality of flow guide columns, a water storage tank is arranged in the temperature control plate, the vertical projection of a notch of the water storage tank is located in the vertical projection of the photovoltaic power generation assembly, the bottom ends of the flow guide columns are connected to the notch of the water storage tank, and the top ends of the flow guide columns protrude out of the photovoltaic power generation assembly. According to the utility model, the battery array module can be controlled to work in a proper temperature range, and the working performance of the photovoltaic power generation device can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaic power generation, in particular to a low-carbon temperature-controlled photovoltaic power generation device. Background Art

[0002] A photovoltaic power generation device refers to a power generation system that uses the photovoltaic effect of semiconductor materials to convert solar radiation energy into electrical energy.

[0003] The core structure of a photovoltaic power generation device is to form a battery array by distributing multiple photovoltaic cell units in an array. Solar radiation shines on the surface of the battery array, and the photovoltaic cell units convert solar radiation energy into electrical energy through the photovoltaic effect. The photovoltaic cell units will heat up when receiving solar radiation. Existing photovoltaic power generation devices directly install the packaged battery array on the bracket for use. This type of photovoltaic power generation device is prone to reduced energy conversion efficiency due to excessive temperature rise. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a low-carbon temperature-controlled photovoltaic power generation device, which can effectively improve the energy conversion rate of the photovoltaic power generation device by slowing down the temperature change speed of the battery array module in a low-carbon manner.

[0005] A low-carbon temperature-controlled photovoltaic power generation device according to an embodiment of the utility model comprises a bracket, a photovoltaic power generation component and a temperature control component, wherein the photovoltaic power generation component and the temperature control component are both mounted on the bracket, the top surface of the photovoltaic power generation component is inclined upward, and the temperature control component is connected to the bottom surface of the photovoltaic power generation component;

[0006] The photovoltaic power generation assembly includes a battery array module and a side seam reflection module. The battery array module includes a plurality of photovoltaic battery units distributed in an array, and a gap is formed between each two adjacent photovoltaic battery units. The side seam reflection module includes a plurality of reflection strips matching the gaps, and each reflection strip is located on a corresponding gap. A reflection mirror is provided on the top of the reflection strip, and the photovoltaic battery units are located on the reflection light path of the adjacent reflection mirrors.

[0007] The temperature control component includes a temperature control plate and a number of guide columns. The temperature control plate is provided with water storage tanks having the same number as the guide columns. The extension direction of the water storage tanks is parallel to the bottom surface of the photovoltaic power generation component. The notches of the water storage tanks are inclined upward for collecting rainwater. The vertical projection of the notches of the water storage tanks is located within the vertical projection of the photovoltaic power generation component. The bottom ends of the guide columns are connected to the notches of the water storage tanks, and the top ends of the guide columns protrude outside the photovoltaic power generation component.

[0008] In this embodiment, the temperature control component further includes a filter screen, and the filter screen is sealed at the notch of the water storage tank.

[0009] In this embodiment, the plane where the filter screen is located is perpendicular to the top surface of the photovoltaic power generation assembly.

[0010] In this embodiment, the temperature control component further includes water absorbing parts whose number is equal to the water storage tanks, and each water absorbing part is filled in a corresponding water storage tank respectively.

[0011] In this embodiment, the water absorbent member is water absorbent cotton.

[0012] In this embodiment, two reflective mirrors are provided on the top of each reflective strip, and the reflective mirrors are inclined upward toward a side close to an adjacent photovoltaic cell unit.

[0013] In this embodiment, the battery array module also includes a glass panel, a light-transmitting glue layer, an adhesive layer and a back panel. The glass panel is connected to the top surface of the photovoltaic cell unit through the light-transmitting glue layer, and the back panel is connected to the bottom surface of the photovoltaic cell unit through the adhesive layer.

[0014] In this embodiment, the bracket includes a fixed seat, a movable frame and a locking screw. The photovoltaic power generation component and the temperature control component are fixedly connected to the movable frame. The fixed seat is provided with a locking screw hole, and the movable frame is provided with a positioning hole. The locking screw is passed through the positioning hole and is threadedly connected to the locking screw hole to fix the relative position of the movable frame and the fixed seat.

[0015] The embodiments of the present invention have at least the following beneficial effects:

[0016] By arranging a reflective strip at the gap to reflect and collect light to the battery array module, the battery array module has a high utilization rate of light energy. By arranging a temperature control plate on the bottom surface of the photovoltaic power generation component, and arranging a water storage tank in the temperature control plate to store rainwater with a high specific heat capacity, rainwater stored in the water storage tank can effectively increase the specific heat capacity of the overall structure of the temperature control plate. The temperature control plate can effectively reduce the temperature change amplitude of the battery array module during operation, and can control the battery array module to work within a suitable temperature range, which can effectively improve the working performance of the photovoltaic power generation device, and the temperature control process does not require additional energy consumption for active adjustment, which is low-carbon and environmentally friendly. In addition, by arranging the notch of the water storage tank to be hidden under the photovoltaic power generation component, and arranging a guide column with a top protruding from the photovoltaic power generation component to guide rainwater to the water storage tank, the probability of rainwater carrying debris into the water storage tank can be significantly reduced, thereby ensuring the effective water storage volume inside the water storage tank, and then ensuring the temperature control effect of the temperature control plate on the battery array module, which can effectively improve the photovoltaic power generation performance of the photovoltaic power generation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1This is a schematic diagram of the three-dimensional structure of a low-carbon temperature-controlled photovoltaic power generation device according to an embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the low-carbon temperature-controlled photovoltaic power generation device of an embodiment of the utility model from another perspective;

[0020] Figure 3 It is a side view structural schematic diagram of a low-carbon temperature-controlled photovoltaic power generation device according to an embodiment of the utility model;

[0021] Figure 4 For along Figure 3 A-A' cross-sectional structural diagram;

[0022] Figure 5 For along Figure 3 Schematic diagram of the cross-sectional structure of B-B';

[0023] Figure 6 Another embodiment of the utility model is Figure 3 Schematic diagram of the cross-sectional structure of B-B'.

[0024] Reference numerals:

[0025] Bracket 100, fixing seat 110, locking screw hole 111, movable frame 120, positioning hole 121, locking screw 130;

[0026] Photovoltaic power generation assembly 200, battery array module 210, photovoltaic battery unit 211, glass panel 212, light-transmitting adhesive layer 213, adhesive layer 214, back plate 215, side seam reflection module 220, reflection strip 221, reflection mirror 222;

[0027] The temperature control assembly 300 , the temperature control plate 310 , the water storage tank 311 , the guide column 320 , the filter screen 330 , and the water absorbing member 340 . DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, left, right, front, back, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 cannot be understood as a limitation on the present invention.

[0030] In the description of the utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] A photovoltaic power generation device is a power generation system that converts solar radiation energy into electrical energy. Its core structure is to form a battery array through multiple photovoltaic cell units distributed in an array. The multiple photovoltaic cell units in the battery array are packaged into a solar panel after being connected in series and parallel. Solar radiation shines on the surface of the battery array, and the photovoltaic cell units convert solar radiation energy into electrical energy through the photovoltaic effect. The photovoltaic cell units will heat up when receiving solar radiation. Existing photovoltaic power generation devices directly install the packaged battery array on the bracket for use. This type of photovoltaic power generation device is prone to reduced energy conversion rate due to excessive temperature rise.

[0033] The following is the attached Figure 1 To Attachment Figure 6 , describing the low-carbon temperature-controlled photovoltaic power generation device of the embodiment of the utility model, which can effectively improve the energy conversion rate of the photovoltaic power generation device by slowing down the temperature change rate of the battery array module in a low-carbon manner.

[0034] Reference Figure 1 and Figure 6 A low-carbon temperature-controlled photovoltaic power generation device of this embodiment includes a bracket 100, a photovoltaic power generation component 200 and a temperature control component 300. The photovoltaic power generation component 200 and the temperature control component 300 are both installed on the bracket 100. The top surface of the photovoltaic power generation component 200 is inclined upward. The temperature control component 300 is connected to the bottom surface of the photovoltaic power generation component 200. The average specific heat capacity of the overall structure of the temperature control component 300 is greater than the average specific heat capacity of the overall structure of the photovoltaic power generation component 200. The temperature control component 300 is used to reduce the temperature variation of the photovoltaic power generation component 200 to ensure that the photovoltaic power generation component 200 works within a suitable temperature range, which can effectively improve the working performance of the photovoltaic power generation component 200.

[0035] The photovoltaic power generation assembly 200 includes a battery array module 210 and a side seam reflection module 220. The battery array module 210 includes a plurality of photovoltaic battery units 211 distributed in an array. Each photovoltaic battery unit 211 is connected in series or in parallel through interconnection welding strips. To ensure the working performance of the photovoltaic battery unit 211, a gap is formed between each two adjacent photovoltaic battery units 211. The gap can prevent a short circuit between the two adjacent photovoltaic battery units 211, and the gap is also used to make way for the interconnection welding strips. The side seam reflection module 220 0 includes a plurality of reflective strips 221 matching the gaps, each reflective strip 221 is cross-connected to form a mesh structure, the meshes of the mesh structure match the photovoltaic cell units 211, each reflective strip 221 is located on a corresponding gap, a reflective mirror 222 is provided on the top of the reflective strip 221, and the photovoltaic cell unit 211 is located on the reflection light path of the adjacent reflective mirror 222, that is, the reflective mirror 222 is used to reflect light to the photovoltaic cell unit 211 on one side of the corresponding gap, so as to improve the utilization rate of light energy by the photovoltaic cell unit 211;

[0036] The temperature control component 300 includes a temperature control plate 310 and a plurality of guide columns 320. The temperature control plate 310 is provided with a plurality of water storage tanks 311, the number of which is equal to the number of guide columns 320. The extension direction of the water storage tank 311 is parallel to the bottom surface of the photovoltaic power generation component 200. The notch of the water storage tank 311 is inclined upward for collecting rainwater. The upward inclined notch of the water storage tank 311 can reduce the vertical projection area of ​​the notch, thereby reducing the probability of debris entering the water storage tank 311 from the notch. The vertical projection of the notch of the water storage tank 311 is located within the vertical projection of the photovoltaic power generation component 200, that is, from a top-down perspective, the notch of the water storage tank 311 is hidden under the photovoltaic power generation component 200, which can effectively prevent rainwater carrying debris from falling directly into the notch of the water storage tank 311, thereby preventing debris from entering the water storage tank 311 and reducing the effective water storage volume, thereby ensuring that the water storage tank 311 The amount of water that can be stored, the bottom end of the guide column 320 is connected to the notch of the water storage tank 311, and the top of the guide column 320 protrudes outside the photovoltaic power generation component 200, that is, the vertical projection of the top of the guide column 320 is located outside the vertical projection of the photovoltaic power generation component 200, and the guide column 320 is used to guide rainwater into the water storage tank 311. By setting the guide column 320 to cooperate with the notch of the water storage tank 311 hidden under the photovoltaic power generation component 200, most of the rainwater can only enter the water storage tank 311 in a diversion manner through the guide column 320, and debris will only fall directly under the action of gravity, which can effectively prevent most of the debris from directly entering from the notch of the water storage tank 311, while ensuring the water storage source. The effective water storage capacity of the water storage tank 311 can be ensured, which can effectively improve the temperature control performance of the photovoltaic power generation component 200, and thus can improve the working performance of the photovoltaic power generation component 200.

[0037] On rainy days, rainwater is collected and stored in the water tank 311; on sunny days, the photovoltaic power generation device uses solar energy to generate electricity. The rainwater in the water tank 311 has a large specific heat capacity. In hot weather, the rainwater in the water tank 311 can effectively slow down the temperature rise of the photovoltaic power generation component 200, thereby preventing the photovoltaic power generation component 200 from overheating and affecting the working performance of the photovoltaic power generation; correspondingly, in cold weather, the rainwater in the water tank 311 can also slow down the temperature drop of the photovoltaic power generation component 200, and can also effectively ensure the working performance of the photovoltaic power generation component 200.

[0038] By arranging a reflective strip 221 at the gap to reflect and collect light to the battery array module 210, the battery array module 210 has a high utilization rate of light energy. Since the light is collected by the battery array module 210, the temperature of the battery array module 210 is higher than the ambient temperature. By arranging a temperature control plate 310 on the bottom surface of the photovoltaic power generation component 200, and arranging a water storage tank 311 in the temperature control plate 310 to store rainwater with a high specific heat capacity, the specific heat capacity of rainwater is greater than the specific heat capacity of the battery array module 210. The rainwater stored in the water storage tank 311 can effectively increase the average specific heat capacity of the overall structure of the temperature control plate 310. The temperature control plate 310 can effectively reduce the temperature change amplitude of the battery array module 210 during operation, which is mainly used to reduce the heating rate of the battery array module 210, and can control the temperature of the battery array module 2 10 works within a suitable temperature range, which can effectively improve the working performance of the photovoltaic power generation device, and the temperature control process does not require additional energy consumption for active adjustment, which is low-carbon and environmentally friendly, and has a high degree of matching with the environmental protection nature of the photovoltaic power generation device; in addition, by setting the notch of the water storage tank 311 hidden under the photovoltaic power generation component 200, and setting a guide column 320 with a top protruding from the photovoltaic power generation component 200 to guide rainwater to the water storage tank 311, which is different from other solid debris, and utilizing the surface tension of rainwater, the probability of rainwater carrying debris into the water storage tank 311 can be significantly reduced, thereby ensuring the effective water storage volume inside the water storage tank 311, and then ensuring the temperature control effect of the temperature control plate 310 on the battery array module 210, which can effectively improve the photovoltaic power generation performance of the photovoltaic power generation device.

[0039] Understandably, reference Figure 5 As shown, the temperature control component 300 also includes a filter 330, which is enclosed at the notch of the water tank 311. The filter 330 is used to block most impurities from entering the water tank 311 and affecting its effective water storage capacity. The filter 330 is provided to further restrict the notch of the water tank 311, which can effectively reduce the probability of affecting the effective water storage capacity in the water tank 311.

[0040] Understandably, reference Figure 5As shown, the plane where the filter 330 is located is perpendicular to the top surface of the photovoltaic power generation component 200, that is, the filter 330 is arranged inclined to the horizontal plane. Even if some debris is blown to the surface of the filter 330 in a windy and rainy environment, the rainwater sliding down from the guide column 320 can wash it down, which can effectively prevent the filter 330 from being completely blocked.

[0041] Understandably, reference Figure 6 As shown, the temperature control component 300 also includes water absorbing members 340 whose number is equal to the number of water storage tanks 311. Each water absorbing member 340 is filled in a corresponding water storage tank 311. The water absorbing members 340 can balance the distribution of rainwater at various positions in the water storage tank 311. Even when there is insufficient rainwater, the water absorbing characteristics of the water absorbing members 340 can evenly distribute rainwater to various positions to ensure a uniform temperature control effect on the photovoltaic power generation component 200, thereby effectively improving the photovoltaic power generation performance of the photovoltaic power generation device.

[0042] Specifically, the absorbent member 340 is absorbent cotton, which has good water absorption and storage functions.

[0043] It can be understood that two reflecting mirrors 222 are provided on the top of each reflecting strip 221, and each reflecting mirror 222 is inclined upward toward the side close to the adjacent photovoltaic cell unit 211. The two reflecting mirrors 222 on the top of the reflecting strip 221 are used to reflect sunlight to two adjacent photovoltaic cell units 211 respectively, which can effectively improve the utilization rate of light energy by the photovoltaic power generation device, and at the same time can improve the uniformity of light received by each photovoltaic cell unit 211.

[0044] It can be understood that the battery array module 210 also includes a glass panel 212, a light-transmitting glue layer 213, an adhesive layer 214 and a back panel 215. The glass panel 212 is connected to the top surface of the photovoltaic cell unit 211 through the light-transmitting glue layer 213, that is, the top surface of the photovoltaic cell unit 211 after being distributed in an array on the same plane is stacked with the light-transmitting glue layer 213 and the glass panel 212 in sequence. The top surface of the photovoltaic cell unit 211 is used to receive light. The back panel 215 is connected to the bottom surface of the photovoltaic cell unit 211 through the adhesive layer 214, that is, the bottom surface of the photovoltaic cell unit 211 after being distributed in an array on the same plane is stacked with the adhesive layer 214 and the back panel 215 in sequence. The adhesive layer 214 also fills the gap to improve the structural stability of the overall battery array module 210.

[0045] Specifically, the photovoltaic cell unit 211 can be a single-sided crystalline silicon cell, the light-transmitting adhesive layer 213 can be an adhesive layer 214 structure with good light transmittance such as an EVA adhesive layer, EVA is the abbreviation of polyethylene-polyvinyl acetate copolymer, and the EVA adhesive film has good adhesion, durability and light transmittance. The adhesive layer 214 can be an EVA adhesive layer or other adhesive layer with good adhesion, and the backboard 215 can be an opaque composite material layer, such as a PTP backboard, a KPK backboard, a TPE backboard, etc.

[0046] It can be understood that the bracket 100 includes a fixed base 110, a movable frame 120 and a locking screw 130, the photovoltaic power generation component 200 and the temperature control component 300 are both fixedly connected to the movable frame 120, the fixed base 110 is provided with a locking screw hole 111, the movable frame 120 is provided with a positioning hole 121, the locking screw 130 is passed through the positioning hole 121 and is threadedly connected to the locking screw hole 111 to fix the relative position of the movable frame 120 and the fixed base 110. According to different application requirements, the relative position of the movable frame 120 and the fixed base 110 can be adjusted by loosening the locking screw 130. After adjusting the relative position of the movable frame 120 and the fixed base 110, tightening the position of the locking screw 130 can fix the relative position between the movable frame 120 and the fixed base 110.

[0047] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A low-carbon temperature-controlled photovoltaic power generation device, characterized in that: It comprises a support (100), a photovoltaic power generation component (200) and a temperature control component (300), wherein the photovoltaic power generation component (200) and the temperature control component (300) are both mounted on the support (100), the top surface of the photovoltaic power generation component (200) is inclined upward, and the temperature control component (300) is connected to the bottom surface of the photovoltaic power generation component (200); The photovoltaic power generation assembly (200) comprises a battery array module (210) and a side seam reflection module (220); the battery array module (210) comprises a plurality of photovoltaic battery units (211) distributed in an array, a gap is formed between each two adjacent photovoltaic battery units (211), the side seam reflection module (220) comprises a plurality of reflection strips (221) matching the gap, each of the reflection strips (221) is located on a corresponding gap, a reflection mirror (222) is provided on the top of the reflection strip (221), and the photovoltaic battery unit (211) is located on a reflection light path of an adjacent reflection mirror (222); The temperature control component (300) comprises a temperature control plate (310) and a plurality of guide columns (320); the temperature control plate (310) is provided with water storage tanks (311) whose number is equal to the guide columns (320); the extension direction of the water storage tanks (311) is parallel to the bottom surface of the photovoltaic power generation component (200); the notches of the water storage tanks (311) are inclined upward for collecting rainwater; the vertical projection of the notches of the water storage tanks (311) is located within the vertical projection of the photovoltaic power generation component (200); the bottom ends of the guide columns (320) are connected to the notches of the water storage tanks (311); and the top ends of the guide columns (320) protrude outside the photovoltaic power generation component (200).

2. A low-carbon temperature-controlled photovoltaic power generation device according to claim 1, characterized in that: The temperature control component (300) further comprises a filter screen (330), wherein the filter screen (330) is sealed at a notch of the water storage tank (311).

3. A low-carbon temperature-controlled photovoltaic power generation device according to claim 2, characterized in that: The plane where the filter (330) is located is perpendicular to the top surface of the photovoltaic power generation assembly (200).

4. A low-carbon temperature-controlled photovoltaic power generation device according to claim 1, characterized in that: The temperature control component (300) further comprises water absorbing members (340) whose number is equal to the water storage tanks (311), and each of the water absorbing members (340) is respectively filled in a corresponding water storage tank (311).

5. A low-carbon temperature-controlled photovoltaic power generation device according to claim 4, characterized in that: The water absorbing member (340) is water absorbing cotton.

6. A low-carbon temperature-controlled photovoltaic power generation device according to claim 1, characterized in that: Two reflective mirror surfaces (222) are provided on the top of each reflective strip (221), and the reflective mirror surfaces (222) are inclined upward toward a side close to an adjacent photovoltaic cell unit (211).

7. A low-carbon temperature-controlled photovoltaic power generation device according to claim 1, characterized in that: The battery array module (210) further comprises a glass panel (212), a light-transmitting adhesive layer (213), an adhesive layer (214) and a back plate (215); the glass panel (212) is connected to the top surface of the photovoltaic cell unit (211) via the light-transmitting adhesive layer (213); and the back plate (215) is connected to the bottom surface of the photovoltaic cell unit (211) via the adhesive layer (214).

8. A low-carbon temperature-controlled photovoltaic power generation device according to claim 1, characterized in that: The bracket (100) comprises a fixed seat (110), a movable frame (120) and a locking screw (130); the photovoltaic power generation component (200) and the temperature control component (300) are both fixedly connected to the movable frame (120); the fixed seat (110) is provided with a locking screw hole (111); the movable frame (120) is provided with a positioning hole (121); the locking screw (130) is passed through the positioning hole (121) and is threadedly connected to the locking screw hole (111) to fix the relative position of the movable frame (120) and the fixed seat (110).

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