A photovoltaic energy storage system

Abstract

The present invention discloses a photovoltaic energy storage system, comprising a box, a controller, a main body, and a plurality of energy storage batteries. A door is provided on one side of the box; the main body is electrically connected to the controller and the energy storage batteries; two battery racks are provided in the box, and the two battery racks are used to respectively accommodate the energy storage batteries; each battery rack extends along the door toward the main body, and a movable space is formed between the two battery racks, and the movable space extends along the extension direction of each battery rack; a limiting mechanism is provided in the box, and the limiting mechanism is used to limit the movement position of staff entering the box along the extension direction of the movable space, so that the staff can only view the energy storage batteries in one vertical column of one battery rack at a time; the controller is electrically connected to the limiting mechanism. The present invention proposes a technical solution in which, after the staff passes the authentication, the limiting mechanism guides the staff to move to the vertical column where the energy storage battery with abnormal operation is located according to the set maintenance sequence, thereby facilitating rapid search and accelerating maintenance.

Description

Technical Field

[0001] The present invention relates to the field of electric power technology, and in particular to a photovoltaic energy storage system. Background Art

[0002] Photovoltaic power generation is a technology that uses the photovoltaic effect at the interface of semiconductors to directly convert sunlight into electricity. It primarily consists of three main components: solar panels (modules), a controller, and an inverter, with the majority of components made of electronic components. Due to the limited availability of sunlight, photovoltaic power generation can be unstable. Therefore, the generated energy is typically stored in a photovoltaic energy storage system, which is then connected to the power grid. When grid power consumption increases and voltage drops, the photovoltaic energy storage system supplies power to the grid, achieving voltage stability. Existing photovoltaic energy storage systems are typically integrated designs, with the electronic control components and energy storage batteries housed in a box, creating a structure similar to an outdoor substation. This box has a door, which maintenance personnel enter through. However, because multiple energy storage batteries are located within the box, this makes it difficult for personnel to immediately identify the battery requiring maintenance and repair, forcing them to search blindly, hindering rapid maintenance. Summary of the Invention

[0003] The main purpose of the present invention is to provide a photovoltaic energy storage system, which aims to solve the problem that there are too many energy storage batteries in the existing photovoltaic energy storage system and any energy storage battery cannot be quickly maintained.

[0004] To achieve the above object, the technical solution proposed by the present invention is:

[0005] A photovoltaic energy storage system comprises a box, a controller, a main body and a plurality of energy storage batteries, wherein a door is provided on one side of the box, and the main body is provided on a side of the box away from the door; the main body is electrically connected to the controller and each of the energy storage batteries, and the main body is used to control each of the energy storage batteries to output or store electrical energy, and to send the first status information of each of the energy storage batteries to the controller; two battery racks are provided in the box, and the two battery racks are used to respectively accommodate each of the energy storage batteries so that each of the energy storage batteries is arranged vertically and horizontally along the height direction of each of the battery racks; each of the battery racks is arranged along the door to the The battery racks extend in the direction of the main body, and a movable space is formed between the two battery racks, the movable space extending along the extension direction of each battery rack, and the movable space is used for passage; a limiting mechanism is provided in the box, and the limiting mechanism is used to limit the movement position of the staff entering the box along the extension direction of the movable space, so that the staff can only view the energy storage batteries in one vertical column of one of the battery racks at a time; the controller is electrically connected to the limiting mechanism, and the controller is used to control the movement of the limiting mechanism according to each first status information, so that the staff can sequentially detect each energy storage battery with abnormal operation;

[0006] The first status information includes two states: normal working and non-working.

[0007] Preferably, the limiting mechanism includes a first electrically controlled slide, a second electrically controlled slide, a first limiting plate and a second limiting plate, the first limiting plate being connected to the first electrically controlled slide, and the initial position of the first electrically controlled slide is located on the side of each battery rack away from the main body; a camera is provided on one side of the first limiting plate, and the controller is electrically connected to the camera, and the side of the first limiting plate where the camera is provided is used to face the staff so that the camera can obtain an image of the staff and send it to the controller; the second limiting plate is connected to the second electrically controlled slide, and the initial position of the second electrically controlled slide is located on the mobile space the controller is electrically connected to the first electrically controlled slide and the second electrically controlled slide respectively, and is used to control the second electrically controlled slide to move toward the main body when the image of the person is recognized to pass through and the first electrically controlled slide and the second electrically controlled slide are respectively located at corresponding initial positions, and then control the first electrically controlled slide to move into the moving space after the staff follows the second electrically controlled slide into the moving space, so as to maintain a preset distance between the first limiting plate and the second limiting plate, thereby restricting the staff between the first limiting plate and the second limiting plate.

[0008] Preferably, a movable track and a first connecting track are respectively provided on the inner bottom side of the box body, the movable track is provided in the movable space, and the movable track extends along the extension direction of the movable space; the movable track is perpendicular to the first connecting track, the movable track is located at the end of each battery rack away from the main body, the end of the movable track away from the main body is connected to the first connecting track, the first electrically controlled slide and the second electrically controlled slide are respectively slidably connected to the movable track or the first connecting track; the end of the first connecting track is the initial position of the first electrically controlled slide, and the position of the connecting track close to the end of each battery rack away from the main body is the initial position of the second electrically controlled slide.

[0009] Preferably, a second connecting track is further provided on the inner bottom side of the box body, the second connecting track and the first connecting track are arranged parallel and spaced apart, the second connecting track is located between the main body and each of the battery racks, and the end of the movable track away from the first connecting track is connected to the second connecting track.

[0010] Preferably, the door body is provided with an electric door lock, the controller is electrically connected to the electric door lock, the electric door lock is used to send second status information to the controller, and the controller is used to identify the personnel image when the electric door lock is normally opened.

[0011] Preferably, the limiting mechanism also includes two driving structures and two isolation plates, wherein one of the driving structures drives and connects one of the isolation plates, and the other driving structure drives and connects the other isolation plate, and the two driving structures are used to control the two isolation plates so that one of the isolation plates is located on the side of one of the battery racks facing the moving space, and the other isolation plate is located on the side of the other battery rack facing the moving space; each isolation plate is provided with a plurality of electrically controlled doors, and each electrically controlled door is arranged in sequence along the extension direction of the moving space; the number of each electrically controlled door in each isolation plate is equal to the number of vertical columns in the adjacent battery rack. ; The controller is electrically connected to the two drive structures and each of the electric-controlled doors, and the controller is used to drive the two isolation plates to isolate the two battery racks from the moving space through the two drive structures when the staff enters the box, and then according to the moving routes of the first electric-controlled slide and the second electric-controlled slide, the electric-controlled door of the vertical column where the energy storage battery with the abnormal operation is located is located is controlled. The electric-controlled door is located between the first electric-controlled slide and the second electric-controlled slide, and when the first electric-controlled slide and the second electric-controlled slide stop moving, the electric-controlled door of the vertical column where the energy storage battery with the abnormal operation is located is opened.

[0012] Preferably, the driving structure includes a support plate, a telescoping device, a connecting shaft and two fixed slide rails, the two fixed slide rails are arranged in parallel and at intervals, each battery rack is located between the two fixed slide rails, and each fixed slide rail extends horizontally and perpendicular to the extension direction of the moving space; the support plate and the telescoping device are respectively arranged between the two fixed slide rails, the support plate is located on the top side of the battery rack, the telescoping device is located on the side of the support plate away from the battery rack, and the output end of the telescoping device is arranged close to the direction of the moving space; the output end of the telescoping device is hinged to the adjacent isolation plate away from one end of the moving space through the connecting shaft; one end of the connecting shaft is slidably connected to one of the fixed slide rails, and the other end of the connecting shaft is slidably connected to the other fixed slide rail; the top side of the support plate supports the adjacent isolation plate; the two driving structures are symmetrically and spaced apart along the extension direction of the moving space; the controller is electrically connected to the two telescoping devices respectively, and the controller is used to control the two telescoping devices to drive the two connecting shafts to move in the direction of the moving space, so that the two isolation positions are moved from the position close to the top side of the box to between the two battery racks.

[0013] Preferably, a pulley is provided on a side of the support plate close to the moving space, the axial direction of the pulley is parallel to the axial direction of the connecting shaft, and the outer edge of the pulley is used to abut against the adjacent isolation plate.

[0014] Preferably, two accommodating grooves are provided in the box body, and the two accommodating grooves extend along the extension direction of the moving space, one of the accommodating grooves is located between the moving space and one of the battery racks, and the other accommodating groove is located between the moving space and the other battery rack, and the ends of the two isolation plates away from the connecting shafts to which they are connected are used to be inserted into the corresponding accommodating grooves.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] The controller obtains the first status information of each energy storage battery. After the staff passes the authentication, the limiting mechanism leads the staff to move to the vertical column where the energy storage battery with abnormal operation is located according to the set maintenance sequence. In this way, the user only needs to search within the vertical column, which assists the staff to find it quickly and speeds up the maintenance speed in disguise. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 This is a schematic structural diagram of an embodiment of a photovoltaic energy storage system of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the partition in a vertical state;

[0020] Figure 3 Schematic diagram of the structure of the partition.

[0021] Description of Figure Numbers:

[0022] 1- box body; 12- receiving slot; 13- first connecting rail; 14- battery rack; 15- moving space;

[0023] 2-first electric control slide; 21-first limit plate; 22-camera; 23-display; 24-accommodation box;

[0024] 3-second electric control slide; 31-second limit plate; 32-horizontal plate;

[0025] 4- isolation board; 41- electric control door;

[0026] 5-driving structure; 51-support plate; 52-fixed slide rail; 53-connecting shaft; 54-retractor; 55-pulley;

[0027] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referenced. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this disclosure, "plurality" means at least two, such as two or three, unless otherwise specifically defined.

[0031] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0032] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] The present invention provides a photovoltaic energy storage system.

[0034] like Figures 1 to 3 A photovoltaic energy storage system shown in the figure includes a box 1, a controller (not shown in the figure), a main body (not shown in the figure) and a plurality of energy storage batteries (not shown in the figure). A door body (not shown in the figure) is provided on one side of the box 1, and the main body is provided on a side of the box 1 away from the door body; the main body is electrically connected to the controller and each energy storage battery, and the main body is used to control each energy storage battery to output or store electrical energy, and send the first status information of each energy storage battery to the controller; two battery racks 14 are provided in the box 1, and the two battery racks 14 are used to respectively accommodate each energy storage battery so that each energy storage battery is arranged vertically and horizontally along the height direction of each battery rack 14 ; Each battery rack 14 extends along the door body toward the main body, and a moving space 15 is formed between the two battery racks 14. The moving space 15 extends along the extension direction of each battery rack 14, and the moving space 15 is used for passage; a limiting mechanism is set in the box body 1, and the limiting mechanism is used to limit the moving position of the staff entering the box body 1 along the extension direction of the moving space 15, so that the staff can only view the energy storage batteries in one vertical column of one of the battery racks 14 at a time; the controller is electrically connected to the limiting mechanism, and the controller is used to control the movement of the limiting mechanism according to each first state information, so that the staff can detect each energy storage battery with abnormal operation in turn.

[0035] The controller obtains the first status information of each energy storage battery. After the staff passes the authentication, the limiting mechanism leads the staff to move to the vertical column where the energy storage battery with abnormal operation is located according to the set maintenance sequence. In this way, the user only needs to search within the vertical column, which assists the staff to find it quickly and speeds up the maintenance speed in disguise.

[0036] Specifically, the main body is an electrical device for controlling each energy storage battery, such as a transformer, etc. The main body is connected to an external power grid, etc.

[0037] Specifically, the first state information includes two states: normal operation and non-operating state. For example, when the energy storage battery is charging, some of the energy storage batteries are not charged, and the first state information of the energy storage battery is non-operating. Similarly, when transmitting power to the external power grid, the first state information of the energy storage battery that is not transmitting power is non-operating.

[0038] The limiting mechanism includes a first electrically controlled slide 2, a second electrically controlled slide 3, a first limiting plate 21 and a second limiting plate 31. The first limiting plate 21 is connected to the first electrically controlled slide 2. The initial position of the first electrically controlled slide 2 is located on the side of each battery rack 14 away from the main body; a camera 22 is provided on one side of the first limiting plate 21, and the controller is electrically connected to the camera 22. The side of the first limiting plate 21 where the camera 22 is provided is used to face the staff so that the camera 22 can obtain an image of the staff and send it to the controller; the second limiting plate 31 is connected to the second electrically controlled slide 3. The initial position of the second electrically controlled slide 3 is located on the side of the moving body. The moving space 15 is located at one end away from the main body; the controller is electrically connected to the first electrically controlled slide 2 and the second electrically controlled slide 3. The controller is used to control the second electrically controlled slide 3 to move toward the main body when the image of the person passes through and the first electrically controlled slide 2 and the second electrically controlled slide 3 are respectively located at the corresponding initial positions. After the worker follows the second electrically controlled slide 3 into the moving space 15, the controller controls the first electrically controlled slide 2 to move into the moving space 15 so that a preset distance is maintained between the first limit plate 21 and the second limit plate 31, thereby confining the worker between the first limit plate 21 and the second limit plate 31. The first electrically controlled slide 2 carries the first limit plate 21 and the second electrically controlled slide 3 carries the second limit plate 31, so that the worker can move according to the movement of the two slides, and the abnormal energy storage battery can be quickly identified by stopping the two limit plates. This structural design serves as an auxiliary maintenance function and also has an anti-theft effect. If the worker fails to pass through, the second limit plate 31 will prevent outsiders from entering the moving space 15 and contacting the main body and the energy storage battery.

[0039] Specifically, the photovoltaic energy storage system also includes a main control system. A communicator is also provided within the enclosure 1. A display 23 is also provided on the side of the first limit plate 21 where the camera 22 is located. A controller is electrically connected to the controller and the communicator, which is also electrically connected to the main control system. The controller obtains real-time action images from the main control system via the communicator, and then displays the real-time action images on the display 23, causing the display 23 to display the real-time action images. The camera 22 captures the live action images and transmits them to the controller. The controller compares the real-time action images with the live action images. If the recognition passes, the worker is allowed to enter the mobile space 15. If the recognition fails, the controller requests on-site authentication from the main control system via the communicator. If the on-site authentication passes, the worker is allowed to enter the mobile space 15. If the authentication fails, emergency measures are initiated. Emergency measures may include issuing an alarm and dispatching workers to the enclosure 1. The real-time action images are pre-captured images of the person about to enter the enclosure 1, showing a specific body gesture (e.g., an image of crossed hands), to ensure the accuracy of the recognition and verification.

[0040] Specifically, a storage box 24 is provided on the side of the first limiting plate 21 where the camera 22 is located. The storage box 24 is located near the first electric control slide 2 and has an open top. The storage box 24 is used to store a worker's tool bag. A horizontal plate 32 is provided on the side of the second limiting plate 31 near the first limiting plate 21. The horizontal plate 32 is used to store maintenance items. This design facilitates maintenance.

[0041] A movable track (not shown) and a first connecting track 13 are provided on the inner bottom side of the housing 1. The movable track is disposed within the movable space 15 and extends along the direction in which the movable space 15 extends. The movable track is perpendicular to the first connecting track 13 and is located at the end of each battery rack 14 away from the main body. This end of the movable track is connected to the first connecting track 13. The first and second electrically controlled slides 2 and 3 are slidably connected to the movable track or the first connecting track 13, respectively. The end of the first connecting track 13 represents the initial position of the first electrically controlled slide 2, while the position of the connecting track near the end of each battery rack 14 away from the main body represents the initial position of the second electrically controlled slide 3. The provision of the movable track and the first connecting track 13 can reduce the difficulty of controlling the movement of the first and second electrically controlled slides 2 and 3 within the housing 1.

[0042] A second connecting track (not shown in the figure) is also provided on the inner bottom side of the box body 1. The second connecting track and the first connecting track 13 are arranged parallel and spaced apart. The second connecting track is located between the main body and each battery rack 14. The end of the movable track away from the first connecting track 13 is connected to the second connecting track.

[0043] Specifically, the controller is also used to obtain third-state information about the main body, including the operating status of each electrical device within the main body. If any electrical device within the main body malfunctions, the second electrically controlled slide 3 moves to the end of the second connecting track, and the first electrically controlled slide 2 moves into the movable space 15, near the end of the main body. By limiting the repair sequence, the through-hole controller can standardize maintenance, avoiding multiple inspections of the same area and preventing disruption to the overall maintenance process.

[0044] The door body is provided with an electric door lock (not shown in the figure), the controller is electrically connected to the electric door lock, the electric door lock is used to send second status information to the controller, and the controller is used to identify the personnel image when the electric door lock is normally opened.

[0045] The limiting mechanism also includes two driving structures 5 and two isolation plates 4, wherein one driving structure 5 drives and connects one of the isolation plates 4, and the other driving structure 5 drives and connects the other isolation plate 4. The two driving structures 5 are used to control the two isolation plates 4 so that one isolation plate 4 is located on the side of one battery rack 14 facing the moving space 15, and the other isolation plate 4 is located on the side of the other battery rack 14 facing the moving space 15; each isolation plate 4 is provided with a plurality of electric control doors 41, and each electric control door 41 is sequentially arranged along the extension direction of the moving space 15; the number of each electric control door 41 in each isolation plate 4 is equal to the number of vertical rows in the adjacent battery rack 14 The controller is electrically connected to the two drive structures 5 and each electrically controlled door 41. When a worker enters the enclosure 1, the controller drives the two isolation panels 4 through the two drive structures 5 to isolate the two battery racks 14 from the movable space 15. Based on the movement paths of the first and second electrically controlled slides 2 and 3, the electrically controlled door 41 adjacent to the vertical row of malfunctioning energy storage batteries is positioned between the first and second electrically controlled slides 2 and 3. When the first and second electrically controlled slides 2 and 3 stop moving, the electrically controlled door 41 adjacent to the vertical row of malfunctioning energy storage batteries is opened. By controlling the two isolation panels 4, outsiders are prevented from accessing the energy storage batteries without proper identification. Under normal conditions, the isolation panels 4 are located on top of the battery racks 14. Because the air conditioner is typically positioned in the middle, the top isolation panels 4 do not affect the air conditioner's cooling effect on the enclosure 1.

[0046] Specifically, an LED digital screen (not shown in the figure) is provided on the side of each electric-controlled door 41 away from the moving space 15. The LED digital screen displays numbers from top to bottom according to the corresponding energy storage battery, which further improves the recognition rate.

[0047] The driving structure 5 includes a support plate 51, a telescoping device 54, a connecting shaft 53 and two fixed slide rails 52. The two fixed slide rails 52 are arranged in parallel and spaced apart. Each battery rack 14 is located between the two fixed slide rails 52. Each fixed slide rail 52 extends horizontally and is perpendicular to the extension direction of the moving space 15. The support plate 51 and the telescoping device 54 are respectively arranged between the two fixed slide rails 52. The support plate 51 is located on the top side of the battery rack 14. The telescoping device 54 is located on the side of the support plate 51 away from the two battery racks 14. The output end of the telescoping device 54 is arranged close to the direction of the moving space 15. The output end of the telescoping device 54 is connected to the battery rack 14. The connecting shaft 53 is hinged to the end of the adjacent isolation plate 4 away from the moving space 15; one end of the connecting shaft 53 is slidably connected to one of the fixed slide rails 52, and the other end of the connecting shaft 53 is slidably connected to the other fixed slide rail 52; the top side of the support plate 51 supports the adjacent isolation plate 4; the drive structure 5 is symmetrically and spaced apart along the extension direction of the moving space 15; the controller is electrically connected to the two telescoping devices 54, and the controller is used to control the two telescoping devices 54 to drive the two connecting shafts 53 toward the moving space 15, so that the two isolation positions move from a position near the top side of the box body 1 to between the two battery racks 14. The telescoping device 54 pushes the isolation plate 4 to move along the fixed slide rail 52, causing the isolation plate 4 to descend away from the end of the telescoping device 54. The arrangement of the support plate 51 can prevent the isolation plate 4 from colliding with the battery rack 14 during movement.

[0048] Specifically, the end of the support plate 51 close to the moving space 15 is flush with the side of the adjacent battery rack 14 close to the moving space 15 .

[0049] Specifically, the driving mechanism 5 includes at least two support plates 51 , and the support plates 51 are symmetrically arranged along the retractor 54 .

[0050] Specifically, the horizontal height of one driving structure 5 is higher than the horizontal height of the other driving structure 5, and the horizontal height of the isolation plate 4 connected to the driving structure 5 with the higher horizontal height is higher than the horizontal height of the isolation plate 4 connected to the driving structure 5 with the lower horizontal height. This design reduces the horizontal length of the box and reduces the space occupied by the box.

[0051] A pulley 55 is provided on one side of the support plate 51 close to the moving space 15. The axial direction of the pulley 55 is parallel to the axial direction of the connecting shaft 53. The outer edge of the pulley 55 is used to abut against the adjacent isolation plate 4. The provision of the pulley 55 can assist the movement of the isolation plate 4.

[0052] Two receiving slots 12 are provided within the housing 1. These slots 12 extend along the direction of the movable space 15. One slot 12 is located between the movable space 15 and one of the battery racks 14, and the other slot 12 is located between the movable space 15 and the other battery rack 14. The ends of the two isolation plates 4, distal from the connecting shafts 53 to which they are connected, are intended to be inserted into the corresponding slots 12. The provision of the slots 12 ensures the stability of the isolation plates 4 when in a vertical position.

[0053] The workflow is as follows:

[0054] In step 1, the staff opens the electric door 41 lock, the door body opens normally and sends a signal to the controller, wherein one telescopic device 54 controls the isolation board 4 with a lower horizontal height to be lowered to a vertical state, and then the other telescopic device 54 controls the isolation board 4 with a higher horizontal height to be lowered to a vertical state.

[0055] In step 2, the first and second electric-controlled slides 2 and 3 are both in their initial positions within the box 1. The worker enters the box 1 and faces the first limit plate 21 in its initial position for identification. If identification passes, the worker places the package into the receiving box 24. The second electric-controlled slide 3 slides toward the main body, and the worker follows the second electric-controlled slide 3, while the first electric-controlled slide 2 follows the worker. (The maintenance order is to inspect the main body first, then the energy storage batteries.)

[0056] Step 3: When the first electric-controlled slide 2 and the second electric-controlled slide 3 stop, the electric-controlled door 41 between the first electric-controlled slide 2 and the second electric-controlled slide 3 opens, and the staff maintains the energy storage batteries in the vertical column that are working abnormally according to the LED digital screen inside the electric-controlled door 41.

[0057] Step 4: After all the energy storage batteries are maintained, the first electrically controlled slide 2 and the second electrically controlled slide 3 move to their initial positions, and the staff follow and move into the end of each battery rack 14 away from the main body. The staff leave the box 1 and close the door; one of the telescopic devices 54 controls the isolation board 4 with a higher horizontal height to rise to a horizontal state, and then the other telescopic device 54 controls the isolation board 4 with a lower horizontal height to rise to a horizontal state, completing the entire maintenance.

[0058] During the entire maintenance process, the identification process in the process of opening the door body has anti-theft protection, and the isolation plate 4, the first limiting plate 21 and the second limiting plate 31 also play the functions of guiding and anti-theft.

[0059] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A photovoltaic energy storage system, characterized in that: The invention comprises a box body, a controller, a main body and a plurality of energy storage batteries, wherein a door body is provided on one side of the box body, and the main body is provided on a side of the box body away from the door body; the main body is electrically connected to the controller and each of the energy storage batteries, and the main body is used to control each of the energy storage batteries to output or store electrical energy, and send the first status information of each of the energy storage batteries to the controller; two battery racks are provided in the box body, and the two battery racks are used to respectively accommodate each of the energy storage batteries so that each of the energy storage batteries is arranged vertically and horizontally along the height direction of each of the battery racks; each battery rack is arranged along the door body toward the main body The battery racks extend to form a movable space between the two battery racks, the movable space extending along the extension direction of each battery rack, and the movable space is used for passage; a limiting mechanism is provided in the box, the limiting mechanism is used to limit the movement position of the staff entering the box along the extension direction of the movable space, so that the staff can only view the energy storage batteries in one vertical column of one of the battery racks at a time; the controller is electrically connected to the limiting mechanism, and the controller is used to control the movement of the limiting mechanism according to each first status information, so that the staff can sequentially detect each energy storage battery with abnormal operation; The first status information includes two states: normal working and non-working.

2. A photovoltaic energy storage system according to claim 1, characterized in that: The limiting mechanism includes a first electrically controlled slide, a second electrically controlled slide, a first limiting plate and a second limiting plate, the first limiting plate being connected to the first electrically controlled slide, and the initial position of the first electrically controlled slide is located on the side of each battery rack away from the main body; a camera is set on one side of the first limiting plate, and the controller is electrically connected to the camera, and the side of the first limiting plate where the camera is set is used to face the staff so that the camera can obtain the image of the staff and send it to the controller; the second limiting plate is connected to the second electrically controlled slide, and the initial position of the second electrically controlled slide is located far away from the moving space. away from one end of the main body; the controller is electrically connected to the first electrically controlled slide and the second electrically controlled slide respectively, and the controller is used to control the second electrically controlled slide to move toward the main body when the image of the recognized person passes and the first electrically controlled slide and the second electrically controlled slide are respectively located at the corresponding initial positions, and after the staff follows the second electrically controlled slide into the moving space, control the first electrically controlled slide to move into the moving space, so that a preset distance is maintained between the first limiting plate and the second limiting plate, and the staff is restricted between the first limiting plate and the second limiting plate.

3. A photovoltaic energy storage system according to claim 2, characterized in that: A movable track and a first connecting track are respectively provided on the bottom side of the box body, the movable track is provided in the movable space, and the movable track extends along the extension direction of the movable space; the movable track is perpendicular to the first connecting track, and the movable track is located at the end of each battery rack away from the main body, and the end of the movable track away from the main body is connected to the first connecting track, and the first electrically controlled slide and the second electrically controlled slide are respectively slidably connected to the movable track or the first connecting track; the end of the first connecting track is the initial position of the first electrically controlled slide, and the position of the connecting track close to the end of each battery rack away from the main body is the initial position of the second electrically controlled slide.

4. A photovoltaic energy storage system according to claim 3, characterized in that: A second connecting track is also provided on the bottom side of the box body. The second connecting track is arranged parallel to the first connecting track and spaced apart. The second connecting track is located between the main body and each of the battery racks. The end of the movable track away from the first connecting track is connected to the second connecting track.

5. A photovoltaic energy storage system according to claim 2, characterized in that: The door body is provided with an electric door lock, the controller is electrically connected to the electric door lock, the electric door lock is used to send second status information to the controller, and the controller is used to identify the personnel image when the electric door lock is normally opened.

6. A photovoltaic energy storage system according to any one of claims 2 to 5, characterized in that: The limiting mechanism also includes two driving structures and two isolation plates, wherein one of the driving structures is driven and connected to one of the isolation plates, and the other driving structure is driven and connected to the other isolation plate, and the two driving structures are used to control the two isolation plates so that one of the isolation plates is located on the side of one of the battery racks facing the moving space, and the other isolation plate is located on the side of the other battery rack facing the moving space; each isolation plate is provided with a plurality of electrically controlled doors, and each electrically controlled door is sequentially arranged along the extension direction of the moving space; the number of each electrically controlled door in each isolation plate is equal to the number of vertical columns in the adjacent battery rack; The controller is electrically connected to the two drive structures and each of the electric-controlled doors. The controller is used to drive the two isolation plates to isolate the two battery racks from the moving space through the two drive structures when the staff enters the box, and then according to the moving routes of the first electric-controlled slide and the second electric-controlled slide, the electric-controlled door of the vertical column where the energy storage battery with the abnormal operation is located is controlled. The electric-controlled door is located between the first electric-controlled slide and the second electric-controlled slide. When the first electric-controlled slide and the second electric-controlled slide stop moving, the electric-controlled door of the vertical column where the energy storage battery with the abnormal operation is located is opened.

7. A photovoltaic energy storage system according to claim 6, characterized in that: The driving structure includes a support plate, a telescoping device, a connecting shaft and two fixed slide rails, the two fixed slide rails are arranged in parallel and at intervals, each battery rack is located between the two fixed slide rails, and each fixed slide rail extends horizontally and perpendicular to the extension direction of the moving space; the support plate and the telescoping device are respectively arranged between the two fixed slide rails, the support plate is located on the top side of the battery rack, the telescoping device is located on the side of the support plate away from the battery rack, and the output end of the telescoping device is arranged close to the direction of the moving space; the output end of the telescoping device is hinged to the adjacent isolation plate away from the end of the moving space through the connecting shaft; one end of the connecting shaft is slidably connected to one of the fixed slide rails, and the other end of the connecting shaft is slidably connected to the other fixed slide rail; the top side of the support plate supports the adjacent isolation plate; the two driving structures are symmetrically and spaced apart along the extension direction of the moving space; the controller is electrically connected to the two telescoping devices respectively, and the controller is used to control the two telescoping devices to drive the two connecting shafts to move in the direction of the moving space, so that the two isolation positions are moved from the position close to the top side of the box to between the two battery racks.

8. A photovoltaic energy storage system according to claim 7, characterized in that: A pulley is provided on one side of the support plate close to the moving space, the axial direction of the pulley is parallel to the axial direction of the connecting shaft, and the outer edge of the pulley is used to abut against the adjacent isolation plate.

9. The photovoltaic energy storage system according to claim 7, characterized in that: Two accommodating grooves are provided in the box body, and the two accommodating grooves extend along the extension direction of the moving space. One of the accommodating grooves is located between the moving space and one of the battery racks, and the other accommodating groove is located between the moving space and the other battery rack. The ends of the two isolation plates away from the connecting shafts to which they are connected are used to be inserted into the corresponding accommodating grooves.

Images