Energy storage device for photovoltaic micro-grid

Abstract

The utility model discloses an energy storage device for a photovoltaic micro-grid, which relates to the technical field of photovoltaic power generation and comprises a packaging box, a heat dissipation tool is mounted in a box body of the packaging box, an energy storage battery is arranged in the heat dissipation tool, and a ventilation heat dissipation assembly opposite to the heat dissipation tool is mounted above the box body of the packaging box in a conducting manner. According to the energy storage device for the photovoltaic micro-grid, the combination of the packaging box and the heat dissipation tool serves as an assembly tool of an energy storage battery, wind power blowing of the ventilation heat dissipation assembly is utilized, external cold air is blown into the heat dissipation tool after being subjected to filtering and dust removal, U-shaped conduction of the heat dissipation through grooves in the heat dissipation tool is utilized, the cold air flows in an orderly flowing mode, and the heat dissipation efficiency of the energy storage battery is improved. According to the energy storage battery heat dissipation structure, the energy storage battery can be packaged and protected more completely, and the external anti-interference capability is higher while the heat dissipation is more comprehensive and efficient, and the whole structure of the energy storage battery is subjected to air-cooled heat dissipation.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power generation, and in particular to an energy storage device for photovoltaic microgrids. Background Technology

[0002] A photovoltaic microgrid is a distributed power system consisting of three parts: solar panels, battery energy storage system, and grid interconnection. By making full use of solar energy resources, the photovoltaic microgrid system can achieve self-sufficiency in electricity and grid connection and contribution of surplus electricity, providing users with green and efficient power supply.

[0003] The electrical energy generated by photovoltaic microgrids is usually stored through energy storage devices to store the generated electricity in a unified manner for easy use later. As shown in the Chinese Patent Network, a heat-dissipating energy storage device for photovoltaic microgrids (publication announcement number CN217606905U) is used. This type of photovoltaic energy storage device is equipped with four air ducts and air guide branches. The air is sent into the air ducts through the air guide branches by the air supply fan, and then discharged from the air guide branches. Because the air outlet of the air guide branch is aligned with the corner of the energy storage battery, the delivered air is dispersed to the surface of the energy storage battery, realizing comprehensive heat dissipation on the outside of the energy storage battery.

[0004] However, the aforementioned publicly disclosed patents and existing photovoltaic microgrid energy storage devices still have some shortcomings: Existing methods that use ductwork to blow cold air onto the corners of the energy storage batteries, dispersing the air at these corners for cooling, have limited contact with the batteries after the air is blown out. Typically, only batteries near the corners are cooled, resulting in limited, uneven, and inefficient cooling. Therefore, those skilled in the art have provided an energy storage device for photovoltaic microgrids to address the problems mentioned in the background section. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an energy storage device for photovoltaic microgrids, which solves the problem of poor air-cooling efficiency of existing photovoltaic microgrid energy storage devices mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an energy storage device for photovoltaic microgrids, comprising a packaging box;

[0007] The encapsulation box is equipped with a heat dissipation fixture inside, and the heat dissipation fixture contains an energy storage battery.

[0008] The top of the enclosure is equipped with a ventilation and heat dissipation component that is opposite to the heat dissipation fixture.

[0009] The ventilation and heat dissipation assembly comprises a wind box mounted on the packaging box, a ventilation fan is mounted on the upper half of the box body of the wind box, and a dust removal filter frame is mounted on the lower half of the box body of the wind box, a rotating pin connected with the wind box in rotation is arranged at the corner end of the dust removal filter frame, and a first filter screen and a second filter screen are sequentially arranged in the frame of the dust removal filter frame from top to bottom.

[0010] As a further technical scheme of the utility model, the heat dissipation tool comprises a tool frame, the tool frame is a square frame structure, and heat dissipation through-slots are formed in the four frame surfaces of the tool frame, a supporting table for supporting the energy storage battery is mounted in the tool frame, and a ventilation opening is formed in the bottom of the tool frame and is in communication with the heat dissipation through-slots.

[0011] As a further technical scheme of the utility model, the heat dissipation through-slots are U-shaped slot structures, and the heat dissipation through-slots are arranged in multiple groups, and the two adjacent groups of heat dissipation through-slots are arranged in a staggered and opposite manner.

[0012] As a further technical scheme of the utility model, the outer frame of the heat dissipation tool is attached to the inner wall of the packaging box, and the inner frame of the heat dissipation tool is attached to the outer wall of the energy storage battery.

[0013] As a further technical scheme of the utility model, a ventilation top cover is mounted above the box body of the wind box, the ventilation top cover is a frame-shaped mesh cover structure, and a protective shielding plate is arranged on the top cover of the ventilation top cover and extends outward.

[0014] As a further technical scheme of the utility model, the dust removal filter frame is pivoted on the rotating pin and has a maximum rotation angle of 90°, and an opening and closing handle is arranged on one side of the frame of the dust removal filter frame.

[0015] As a further technical scheme of the utility model, the first filter screen is a stainless steel filter screen structure, and the second filter screen is a HEPA filter screen structure.

[0016] As a further technical scheme of the utility model, a foot wheel seat is mounted on the bottom of the packaging box.

[0017] As a further technical scheme of the utility model,

[0018] The utility model provides a kind of energy storage device for photovoltaic microgrid, compared with prior art, with following

[0019] Beneficial effects:

[0020] 1.The energy storage device for photovoltaic micro-grid of the design is based on the combination of the packaging box and the heat dissipation tooling as the assembly tooling of the energy storage battery, and uses the wind force blowing of the ventilation and heat dissipation assembly to blow the external cold wind after filtering and dust removal into the heat dissipation tooling, uses the U-shaped guide of the heat dissipation channel in the heat dissipation tooling to flow the cold wind in an orderly manner along the overall structure of the energy storage battery, and performs air cooling heat dissipation for the overall structure of the energy storage battery, which is more comprehensive and efficient in heat dissipation, and is more perfect in packaging protection of the energy storage battery and stronger in external anti-interference ability.

[0021] 2.The energy storage device for photovoltaic micro-grid of the design can facilitate the daily disassembly and maintenance of the filter screen by the staff through the ventilation and heat dissipation assembly with flexible and detachable form, and only needs to turn over the dust removal filter frame to disassemble and replace the filter screen, which is simple and convenient to operate. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic view of an energy storage device for photovoltaic micro-grid.

[0023] Figure 2 It is a partial sectional view of an energy storage device for photovoltaic micro-grid.

[0024] Figure 3 It is a structural schematic view of a heat dissipation tooling in an energy storage device for photovoltaic micro-grid.

[0025] Figure 4 It is a structural schematic view of a ventilation and heat dissipation assembly in an energy storage device for photovoltaic micro-grid.

[0026] Figure 5 It is an expanded schematic view of a ventilation and heat dissipation assembly in an energy storage device for photovoltaic micro-grid.

[0027] In the figure: 1, packaging box; 2, caster seat; 3, air bellow; 4, ventilation top cover; 5, ventilation fan; 6, dust removal filter frame; 7, energy storage battery; 8, heat dissipation tooling; 81, tooling frame; 82, heat dissipation channel; 83, support table; 84, ventilation opening; 9, rotating pin; 10, opening and closing handle; 11, first filter screen; 12, second filter screen. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] Please refer to Figures 1-5The utility model provides a kind of photovoltaic microgrid energy storage device technical scheme: a kind of photovoltaic microgrid energy storage device, including packaging box 1, the bottom of packaging box 1 is equipped with trundle seat 2, by being provided with trundle seat 2 in the bottom of packaging box 1, it is convenient for staff to push in the mode, push energy storage device to specified direction and carry out electric storage work.

[0030] The inside of the box body of packaging box 1 is provided with a heat dissipation tool 8, and the inside of the heat dissipation tool 8 is provided with an energy storage battery 7. The heat dissipation tool 8 includes a tool frame 81, which is a square frame structure. The tool frame 81 is provided with heat dissipation grooves 82 on four frame surfaces. The inside of the tool frame 81 is provided with a support table 83 for supporting the energy storage battery 7. The bottom of the tool frame 81 is provided with a ventilation opening 84 in communication with the heat dissipation grooves 82. The heat dissipation grooves 82 are U-shaped grooves, and there are multiple groups of the heat dissipation grooves 82. Adjacent two groups of the heat dissipation grooves 82 are arranged in an opposite staggered manner. The support table 83 is used as a support carrier for the energy storage battery 7. The energy storage battery 7 is arranged in the tool frame 81 and matched with the heat dissipation tool 8 as a whole. The heat dissipation tool 8 can be used as a loading tool and an air cooling tool. Then, the cold air flows along the whole structure of the energy storage battery 7 in a circulating manner through the heat dissipation grooves 82 on the four frame surfaces of the heat dissipation tool 8 in communication with each other, so as to take away the mechanical heat generated by the operation of the energy storage battery 7, and realize omnidirectional and accurate air cooling and heat dissipation.

[0031] The outer frame of the heat dissipation tool 8 is attached to the inner wall of the packaging box 1, and the inner frame of the heat dissipation tool 8 is attached to the outer wall of the energy storage battery 7. The attachment of the heat dissipation tool 8 and the packaging box 1 and the attachment of the heat dissipation tool 8 and the energy storage battery 7 can improve the integrated assembly firmness of the energy storage device and make the heat dissipation grooves 82 in the heat dissipation tool 8 form a closed communication state, so that the cold air flows orderly along the heat dissipation grooves 82 and takes away the mechanical heat of the energy storage battery 7, realizing accurate and comprehensive air cooling and heat dissipation.

[0032] A ventilation and heat dissipation assembly opposite to the heat dissipation tool 8 is installed on the top of the box body of the packaging box 1. The ventilation and heat dissipation assembly includes a bellows 3 mounted on the top of the packaging box 1. The top of the bellows 3 is provided with a ventilation top cover 4. The ventilation top cover 4 is a frame-shaped mesh cover structure, and the top cover of the ventilation top cover 4 is provided with an outwardly extending protective baffle. The ventilation top cover 4 is arranged on the top of the bellows 3 as an external cold air ventilation inlet. The outwardly extending protective baffle is arranged on the top of the ventilation top cover 4, which can block the external rain and snow, so as to prevent the rain and snow from entering the inside of the energy storage device through the air window.

[0033] The upper half of the box body of the bellows 3 is provided with a ventilation fan 5, and the lower half of the box body of the bellows 3 is provided with a dust removal filter frame 6, the corner end of the dust removal filter frame 6 is provided with a rotating pin 9 connected with the bellows 3, and the inside of the frame of the dust removal filter frame 6 is sequentially provided with a first filter screen 11 and a second filter screen 12 from top to bottom, the first filter screen 11 is a stainless steel filter screen structure, the second filter screen 12 is a HEPA filter screen structure, the first filter screen 11 with the stainless steel filter screen structure is used as an insect prevention filter screen, plays a role in insect prevention protection, and the second filter screen 12 with the HEPA filter screen structure is used as a dust prevention filter screen, plays a role in dust prevention filtering, and ensures the cleanliness of the outside cold air conveying.

[0034] The maximum rotation angle of the dust removal filter frame 6 is 90° with the rotating pin 9 as the axis, and the frame of the dust removal filter frame 6 is provided with an opening and closing handle 10, the rotating pin 9 is used as the rotation axis, the dust removal filter frame 6 can be rotated with the rotating pin 9 as the axis by pulling the opening and closing handle 10, and the two groups of filter screens in the frame can be flipped out of the bellows 3 for daily cleaning and maintenance work, and the overall structure does not need to be disassembled, and daily maintenance is more convenient.

[0035] The working principle of the utility model is as follows: in the daily energy storage use process of the photovoltaic micro-grid energy storage device, the photovoltaic micro-grid photovoltaic electric energy is used for daily energy storage work by the energy storage battery 7, while the daily energy storage is carried out, the ventilation fan 5 is controlled to work, the outside cold air is sucked into the bellows 3 through the ventilation top cover 4, and the clean cold air is blown into the packaging box 1 through the filtering of the first filter screen 11 and the second filter screen 12 in the dust removal filter frame 6, so that the cold air flows along the heat dissipation through groove 82 in the heat dissipation tooling 8, and the cold air flows along the overall structure of the energy storage battery 7 in a circulating manner, so as to take away the mechanical heat generated by the operation of the energy storage battery 7, and play a role in all-round and accurate air cooling heat dissipation work.

[0036] In the daily operation process of the energy storage battery, the staff only needs to pull the opening and closing handle 10 to rotate the dust removal filter frame 6 with the rotating pin 9 as the axis, so that the two groups of filter screens in the frame can be cleaned and maintained daily, and the overall structure does not need to be disassembled, and daily maintenance is more convenient.

[0037] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary technical personnel in the technical field, some improvements and refinements can be made without departing from the principle of the utility model, and these improvements and refinements should be regarded as the protection range of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model are implemented according to the conventional means in the field without special description and limitation.

Claims

1. An energy storage device for a photovoltaic microgrid, characterized by, The utility model provides a kind of energy storage battery packaging box, including packaging box (1); The packaging box (1) is internally provided with a heat dissipation tool (8), and the heat dissipation tool (8) is internally provided with an energy storage battery (7); The packaging box (1) is externally provided with a ventilation and heat dissipation assembly opposite to the heat dissipation tool (8). The ventilation and heat dissipation assembly comprises a wind box (3) mounted on the packaging box (1), wherein the upper half of the wind box (3) is provided with a ventilation fan (5), and the lower half of the wind box (3) is provided with a dust removal filter frame (6), wherein one end of the dust removal filter frame (6) is provided with a rotating pin (9) rotatably connected to the wind box (3), and the dust removal filter frame (6) is internally provided with a first filter screen (11) and a second filter screen (12) from top to bottom.

2. The energy storage device for a photovoltaic microgrid according to claim 1, wherein, The heat dissipation tool (8) comprises a tool frame (81), wherein the tool frame (81) is a square frame structure, and the tool frame (81) is provided with a heat dissipation slot (82) along each of the four frame surfaces, wherein the tool frame (81) is internally provided with a support platform (83) supporting the energy storage battery (7), and the bottom of the tool frame (81) is provided with a ventilation opening (84) in communication with the heat dissipation slot (82).

3. The energy storage device for a photovoltaic microgrid according to claim 2, wherein, The heat dissipation slot (82) is a U-shaped slot structure, and the number of heat dissipation slots (82) is multiple groups, and adjacent two groups of heat dissipation slots (82) are arranged in an opposite staggered manner.

4. The energy storage device for a photovoltaic microgrid according to claim 1, wherein, The outer frame of the heat dissipation tool (8) is attached to the inner wall of the packaging box (1), and the inner frame of the heat dissipation tool (8) is attached to the outer wall of the energy storage battery (7).

5. The energy storage device for photovoltaic micro-grid according to claim 1, characterized in that, The wind box (3) is provided with a ventilation top cover (4) on the top of the box, wherein the ventilation top cover (4) is a frame-shaped mesh cover structure, and the top cover of the ventilation top cover (4) is provided with an outwardly extending protective shield.

6. The energy storage device for a photovoltaic microgrid according to claim 1, wherein, The dust removal filter frame (6) has a maximum rotation angle of 90° about the rotating pin (9), and the dust removal filter frame (6) is provided with an opening and closing handle (10) on one side of the frame.

7. The energy storage device for photovoltaic micro-grid according to claim 1, characterized in that, The first filter screen (11) is a stainless steel filter screen structure, and the second filter screen (12) is a HEPA filter screen structure.

8. The energy storage device for a photovoltaic microgrid according to claim 1, wherein, The packaging box (1) is provided with a caster seat (2) on the bottom.

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