Photovoltaic microgrid energy storage device

Abstract

The utility model relates to the technical field of photovoltaic energy storage devices, in particular to a photovoltaic micro-grid energy storage device which comprises a shell, a supporting frame is fixedly connected to the interior of the shell, a plurality of placing plates are fixedly connected to the supporting frame, storage batteries are placed on the placing plates, a heat dissipation structure is arranged on the shell, the heat dissipation structure comprises an axial flow fan, and the axial flow fan is fixedly connected with the supporting frame. An axial flow fan is fixedly installed on the shell, a shielding cover is fixedly connected to the shell, an outer frame is clamped to the shell, two filter screens are fixedly connected to the outer frame, a connecting plate is fixedly connected to the shell, a threaded sleeve is fixedly connected to the connecting plate, a threaded rod is connected to the threaded sleeve in a threaded mode, an abutting plate is rotationally connected to the end of the threaded rod, and the abutting plate abuts against the outer frame. Heat dissipation of the storage battery can be accelerated, and meanwhile, external dust can be prevented from entering the cabinet body, so that the storage battery is prevented from being damaged due to too high temperature, and meanwhile, the surface cleanness of the storage battery is ensured.

Description

Technical Field

[0001] The utility model relates to a photovoltaic energy storage device, in particular to a photovoltaic microgrid energy storage device, belonging to the technical field of photovoltaic energy storage devices. Background Technique

[0002] The microgrid, also translated as the micro-network, refers to a small power generation and distribution system composed of distributed power sources, energy storage devices, energy conversion devices, loads, monitoring and protection devices, etc. The proposed photovoltaic microgrid aims to achieve the flexible and efficient application of distributed power sources, solve the problem of grid connection of a large number of distributed power sources with various forms, and the development and extension of the photovoltaic microgrid can fully promote the large-scale access of distributed power sources and renewable energy, realize the high-reliability supply of various energy forms to loads, and is an effective way to realize an active distribution network, making the traditional power grid transition to a smart grid. During the operation of the photovoltaic microgrid system, energy storage is carried out through a storage battery, and the storage battery is generally placed in a cabinet.

[0003] However, most traditional storage battery cabinets will have through holes on the side wall of the cabinet body for heat dissipation of the storage battery. Not only is the heat dissipation speed slow, which is likely to cause the storage battery to be damaged due to excessive temperature, but also external dust is easily introduced into the interior of the cabinet body, which is not conducive to the cleaning inside the cabinet body. Content of the Utility Model

[0004] The purpose of the utility model is to provide a photovoltaic microgrid energy storage device to solve the above problems, which can accelerate the heat dissipation of the storage battery while preventing external dust from entering the interior of the cabinet body, thereby not only avoiding the damage of the storage battery due to excessive temperature but also ensuring the cleanliness of the surface of the storage battery.

[0005] The utility model realizes the above purpose through the following technical solutions. A photovoltaic microgrid energy storage device includes a housing. A support frame is fixedly connected inside the housing. A plurality of placement plates are fixedly connected to the support frame. A storage battery is placed on the placement plate. A heat dissipation structure is provided on the housing. The heat dissipation structure includes an axial flow fan, which is fixedly installed on the housing. A shielding cover is fixedly connected to the housing. An outer frame is clamped on the housing. Two filter nets are fixedly connected to the outer frame. A connecting plate is fixedly connected to the housing. A threaded sleeve is fixedly connected to the connecting plate. A screw rod is threadedly connected to the threaded sleeve. The end of the screw rod is rotatably connected to a pressing plate, and the pressing plate abuts against the outer frame.

[0006] Preferably, a rotating rod is fixedly connected to the bottom end of the screw rod, and the cross section of the outer frame is in a "day" - shaped structure.

[0007] Preferably, the axial flow fan is arranged at the bottom end on one side of the housing, and the filter net is arranged at the top end on the other side of the housing.

[0008] Preferably, a sealing gasket is engaged inside the shell, and the sealing gasket is in contact with the outer frame.

[0009] Preferably, the bottom end of the shell is fixedly connected to a base, and one side of the battery is fixedly connected to two handles.

[0010] Preferably, a plurality of guide shafts are rotatably connected to the placement plate, and the plurality of guide shafts located on the same placement plate are linearly and equidistantly distributed, and the bottom ends of the guide shafts are in conflict with the bottom ends of the batteries.

[0011] Preferably, a baffle is fixedly connected to the placement plate, the baffle is in contact with the battery, and the cross-section of the baffle is a U-shaped structure.

[0012] Preferably, a support structure is provided on the placement plate, and the support structure includes a rotating shaft, the placement plate is rotatably connected to the rotating shaft, a stopper is fixedly connected to the rotating shaft, the stopper conflicts with the battery, and a connecting column is fixedly connected to the stopper.

[0013] Preferably, a sealing door is rotatably connected to the shell, a lock core is fixedly mounted on the sealing door, and a transparent plate is fixedly connected to the sealing door.

[0014] The beneficial effects of the present invention are as follows: during use, electric energy can be stored through multiple batteries, and the outer shell can play a role in shielding and protecting the batteries, thereby effectively preventing the batteries from being damaged by impact; heat is generated during the process of charging and discharging the batteries, and at this time, the axial flow fan can be started, and under the action of the axial flow fan, the air around the batteries will flow to one end of the axial flow fan, and then be discharged from the other end of the axial flow fan, so that the heat generated by the batteries can be discharged in time, avoiding damage to the batteries due to overheating; and when the air inside the shell is sucked away, the air outside the shell will enter the inside of the shell through the filter, and the dust in the air will be removed when the air passes through the filter. Dust will be filtered by the filter, thereby preventing dust in the air from entering the interior of the shell, effectively ensuring the cleanliness of the interior of the shell. As the filter is used for a longer time, a certain amount of dust will adhere to its surface. At this time, the screw can be rotated. Since the screw and the threaded sleeve are threadedly connected, and are rotationally connected to the back plate, the back plate will move away from the outer frame as the screw rotates. When the distance between the back plate and the outer frame is greater than the thickness of the outer frame, the screw can be stopped and the outer frame can be removed from the shell. After removing the outer frame from the shell, it is more convenient to clean the filter. Regular cleaning of the filter can avoid clogging of the filter mesh, thereby effectively ensuring the filtration efficiency of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown;

[0017] Figure 3 This is a schematic diagram of the connection structure between the housing and the shielding cover of the present invention;

[0018] Figure 4 for Figure 3 An enlarged schematic diagram of part B is shown;

[0019] Figure 5 This is a schematic structural diagram of the baffle of the present utility model;

[0020] Figure 6 This is a schematic diagram of the connection structure between the outer frame and the filter screen of the present invention.

[0021] In the figure: 1. Housing; 2. Heat dissipation structure; 201. Axial fan; 202. Shielding cover; 203. Outer frame; 204. Filter; 205. Connecting plate; 206. Rotating rod; 207. Threaded sleeve; 208. Screw; 209. Abutment plate; 3. Support frame; 4. Placement plate; 5. Guide shaft; 6. Baffle; 7. Battery; 8. Abutment structure; 801. Rotating shaft; 802. Block; 803. Connecting column; 9. Sealed door; 10. Transparent plate; 11. Lock core; 12. Base; 13. Sealing gasket. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-6As shown in the figure, a photovoltaic microgrid energy storage device includes a housing 1. Inside the housing 1, there is a fixedly connected support frame 3. On the support frame 3, there are fixedly connected multiple placement plates 4. On the placement plates 4, there are placed storage batteries 7. On the housing 1, there is a heat dissipation structure 2. The heat dissipation structure 2 includes an axial flow fan 201. The axial flow fan 201 is fixedly installed on the housing 1. The housing 1 is fixedly connected with a shielding cover 202. An outer frame 203 is snap-fitted on the housing 1. On the outer frame 203, there are fixedly connected two filter nets 204. The housing 1 is fixedly connected with a connecting plate 205. On the connecting plate 205, there is fixedly connected a threaded sleeve 207. A screw rod 208 is threadedly connected to the threaded sleeve 207. The end of the screw rod 208 is rotatably connected with a pressing plate 209. The pressing plate 209 abuts against the outer frame 203.

[0024] As a technical optimization scheme of the present utility model, the bottom end of the screw rod 208 is fixedly connected with a rotating rod 206. The cross-section of the outer frame 203 is in a "day" - shaped structure. Therefore, the screw rod 208 can be conveniently rotated through the rotating rod 206.

[0025] As a technical optimization scheme of the present utility model, the axial flow fan 201 is arranged at the bottom end of one side of the housing 1, and the filter nets 204 are arranged at the top end of the other side of the housing 1. Therefore, the heat dissipation effect can be improved.

[0026] As a technical optimization scheme of the present utility model, a sealing gasket 13 is snap-fitted inside the housing 1. The sealing gasket 13 abuts against the outer frame 203. Therefore, the sealing performance between the housing 1 and the outer frame 203 can be improved.

[0027] As a technical optimization scheme of the present utility model, the bottom end of the housing 1 is fixedly connected with a base 12. On one side of the storage battery 7, there are fixedly connected two handles. Therefore, the storage battery 7 can be conveniently pulled out from the inside of the housing 1 through the handles.

[0028] As a technical optimization scheme of the present utility model, multiple guide shafts 5 are rotatably connected to the placement plate 4. The multiple guide shafts 5 located on the same placement plate 4 are linearly and equidistantly distributed. The bottom ends of the guide shafts 5 abut against the bottom end of the storage battery 7. Therefore, the resistance received when pulling the storage battery 7 can be reduced.

[0029] As a technical optimization scheme of the present utility model, a baffle 6 is fixedly connected to the placement plate 4. The baffle 6 abuts against the storage battery 7. The cross-section of the baffle 6 is in a U - shaped structure. Therefore, the baffle 6 can play a role in positioning the storage battery 7.

[0030] As a technical optimization solution of the present invention, a resistance structure 8 is provided on the placement plate 4, and the resistance structure 8 includes a rotating shaft 801. The placement plate 4 is rotatably connected to the rotating shaft 801, and a stopper 802 is fixedly connected to the rotating shaft 801. The stopper 802 conflicts with the battery 7, and a connecting column 803 is fixedly connected to the stopper 802, so that the battery 7 can be resisted.

[0031] As a technical optimization solution of the present invention, a sealing door 9 is rotatably connected to the shell 1, a lock core 11 is fixedly installed on the sealing door 9, and a transparent plate 10 is fixedly connected to the sealing door 9, so that the shell 1 can be sealed through the sealing door 9.

[0032] When the utility model is in use, multiple batteries 7 are used to store electric energy, and the housing 1 can shield and protect the batteries 7, thereby effectively preventing the batteries 7 from being damaged by impact. Heat is generated during the charging and discharging process of the batteries 7. At this time, the axial flow fan 201 can be started. Under the action of the axial flow fan 201, the air around the batteries 7 will flow to one end of the axial flow fan 201, and then be discharged from the other end of the axial flow fan 201, so that the heat generated by the batteries 7 can be discharged in time, avoiding the batteries 7 from being damaged due to excessive temperature, and when the air inside the housing 1 is drawn out, the heat generated by the batteries 7 can be discharged in time. After the filter 204 is used, the air outside the housing 1 will enter the interior of the housing 1 through the filter 204. When the air passes through the filter 204, the dust in the air will be filtered by the filter 204, thereby preventing the dust in the air from entering the interior of the housing 1, effectively ensuring the cleanliness of the interior of the housing 1. As the filter 204 is used for a longer time, a certain amount of dust will adhere to its surface. At this time, the screw 208 can be rotated by the rotating rod 206. Since the screw 208 is threadedly connected to the threaded sleeve 207 and is rotatably connected to the back plate 209, the back plate 209 will move away from the outer frame 203 as the screw 208 rotates. When the distance between the plate 209 and the outer frame 203 is greater than the thickness of the outer frame 203, the screw 208 can be stopped and the outer frame 203 can be removed from the outer shell 1. After the outer frame 203 is removed from the outer shell 1, it is more convenient to clean the filter 204. By regularly cleaning the filter 204, the clogging of the filter 204 mesh can be avoided, thereby effectively ensuring the filtration efficiency of the filter 204. The shielding cover 202 can shield and protect the axial flow fan 201. The transparent plate 10 can be used to observe the situation inside the shell 1 without opening the sealing door 9. When the battery 7 needs to be inspected, the sealed door 9 can be opened through the lock core 11, and then the block 802 can be rotated through the connecting column 803. When the block 802 does not resist the battery 7, the handle on one side of the battery 7 can be held and the battery 7 can be pulled out from the inside of the shell 1. During the movement of the battery 7, the bottom end of the battery 7 will drive the multiple guide shafts 5 to rotate, thereby reducing the resistance of the battery 7 during movement, effectively saving effort, and continuing to pull the battery 7 until the battery 7 is taken out from the inside of the shell 1, thereby realizing the rapid disassembly of the battery 7 and facilitating the inspection and maintenance of the battery 7.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0034] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A photovoltaic microgrid energy storage device, comprising a housing (1), characterized in that: A support frame (3) is fixedly connected inside the outer shell (1). A plurality of placement plates (4) are fixedly connected to the support frame (3). A storage battery (7) is placed on the placement plate (4). A heat dissipation structure (2) is provided on the outer shell (1). The heat dissipation structure (2) includes an axial flow fan (201). The axial flow fan (201) is fixedly installed on the outer shell (1). A shielding cover (202) is fixedly connected to the outer shell (1). An outer frame (203) is snap-fitted on the outer shell (1). Two filter nets (204) are fixedly connected to the outer frame (203). A connecting plate (205) is fixedly connected to the outer shell (1). A threaded sleeve (207) is fixedly connected to the connecting plate (205). A screw rod (208) is threadedly connected to the threaded sleeve (207). An abutting plate (209) is rotatably connected to the end of the screw rod (208). The abutting plate (209) abuts against the outer frame (203).

2. A photovoltaic microgrid energy storage device according to claim 1, characterized in that: A rotating rod (206) is fixedly connected to the bottom end of the screw rod (208). The cross-section of the outer frame (203) is in a "day" - shaped structure.

3. A photovoltaic microgrid energy storage device according to claim 1, characterized in that: The axial flow fan (201) is provided at the bottom end of one side of the outer shell (1). The filter net (204) is provided at the top end of the other side of the outer shell (1).

4. A photovoltaic microgrid energy storage device according to claim 1, characterized in that: A sealing gasket (13) is snap-fitted inside the outer shell (1). The sealing gasket (13) abuts against the outer frame (203).

5. The photovoltaic microgrid energy storage device according to claim 1, characterized in that: A base (12) is fixedly connected to the bottom end of the outer shell (1). Two handles are fixedly connected to one side of the storage battery (7).

6. The photovoltaic microgrid energy storage device according to claim 1, characterized in that: A plurality of guide shafts (5) are rotatably connected to the placement plate (4). The plurality of guide shafts (5) located on the same placement plate (4) are linearly and equally spaced. The bottom end of the guide shaft (5) abuts against the bottom end of the storage battery (7).

7. The photovoltaic microgrid energy storage device according to claim 1, characterized in that: A baffle (6) is fixedly connected to the placement plate (4). The baffle (6) abuts against the storage battery (7). The cross-section of the baffle (6) is in a U - shaped structure.

8. The photovoltaic microgrid energy storage device according to claim 1, characterized in that: A resisting structure (8) is provided on the placement plate (4). The resisting structure (8) includes a rotating shaft (801). The rotating shaft (801) is rotatably connected to the placement plate (4). A blocking block (802) is fixedly connected to the rotating shaft (801). The blocking block (802) abuts against the storage battery (7). A connecting column (803) is fixedly connected to the blocking block (802).

9. The photovoltaic microgrid energy storage device according to claim 1, characterized in that: A sealing door (9) is rotatably connected to the outer shell (1). A lock core (11) is fixedly installed on the sealing door (9). A transparent plate (10) is fixedly connected to the sealing door (9).

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