Photovoltaic energy storage device that is easy to maintain

Abstract

The present invention relates to the technical field of photovoltaic energy storage devices, and specifically to a photovoltaic energy storage device that is easy to maintain. Regarding the problem of the cumbersome steps for installing and removing batteries in an energy storage cabinet. It comprises: a cabinet body, wherein a plurality of storage units are arranged in the cabinet body, wherein the storage units are used to store batteries, and wherein the storage units comprise: a fixed seat, which is arranged in the cabinet body; a sliding shaft, which is slidably connected to the fixed seat; a bottom plate, which is slidably connected to the fixed seat, and the inclined surface of the fixed seat is used to support the deflected bottom plate; a fixed frame, which is fixed to the bottom plate, wherein the fixed frame is slidably connected to the sliding shaft, and a slope is arranged on one side of the fixed seat. The present invention reduces the steps for installing the battery, reduces the difficulty of installing and removing the battery, and improves the efficiency of the overall inspection and maintenance of the battery through the horizontal movement and vertical swinging of the bottom plate and the fixed frame.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic energy storage devices, and in particular to a photovoltaic energy storage device which is easy to maintain. Background Art

[0002] A photovoltaic energy storage device is a device used to store the electrical energy generated by a photovoltaic power generation system. It is usually composed of photovoltaic panels, inverters, energy storage units, battery management systems (BMS), controllers and distribution equipment. The device can not only store excess electrical energy generated by photovoltaic power generation during the day, but also provide a stable power supply for homes, commercial facilities or other electrical equipment at night or on cloudy days. The energy storage unit consists of an energy storage cabinet and multiple series-connected batteries compactly arranged therein, and multiple mounting racks are provided in the energy storage cabinet.

[0003] However, in actual applications, due to long-term use or battery aging, the battery needs to be regularly inspected and replaced. In the process of installing the battery into the energy storage cabinet, the battery needs to be lifted to a position flush with the bracket on the energy storage cabinet and inserted into the bracket steadily while keeping it horizontal. If the battery is skewed, the battery is not accurately aligned with the bracket of the energy storage cabinet, which will cause the battery to get stuck and require secondary alignment. Finally, the battery needs to be fixed with bolts and other parts. The installation steps of the battery are very cumbersome. In addition, since the battery has a certain weight, when the battery needs to be installed on a higher bracket of the energy storage cabinet, the battery may fall if the operation is improper, which will threaten the life safety of the operator and further affect the overall inspection and maintenance efficiency of the battery. Summary of the invention

[0004] In order to solve the problem that the steps for installing and removing batteries in an energy storage cabinet are complicated, the present invention provides a photovoltaic energy storage device that is easy to maintain.

[0005] The technical implementation scheme of the present invention is: a photovoltaic energy storage device that is easy to repair, comprising:

[0006] A cabinet body is provided with a plurality of storage units, and the storage units are used to store batteries. The storage units include:

[0007] A fixing seat, arranged in the cabinet;

[0008] A sliding shaft, slidably connected to the fixing seat;

[0009] A bottom plate, slidably connected to the fixing seat;

[0010] A fixed frame is fixedly connected to the bottom plate, the fixed frame is slidably connected to the sliding shaft, one side of the fixed seat is provided with an inclined surface, and the inclined surface of the fixed seat is used to support the deflected bottom plate;

[0011] A fixing mechanism, arranged on the fixing frame, for fixing the battery;

[0012] The buffer mechanism is arranged on the sliding shaft and is used to control the swinging speed of the bottom plate.

[0013] As a preferred embodiment of this solution, a rectangular groove is provided on one side of the fixed frame, and the sliding shaft slides in the rectangular groove of the fixed frame. The height of the rectangular groove on the fixed frame is greater than the diameter of the sliding shaft, which is used to increase the downward deflection angle of the base plate.

[0014] As a preferred embodiment of the present invention, a plurality of through holes are provided on the cabinet, the through holes on the cabinet are flush with the adjacent fixing frames, a plurality of partition plates are sealingly and slidably connected to the cabinet, and the partition plates are used to block adjacent through holes on the cabinet.

[0015] As a preferred embodiment of this solution, the fixing mechanism includes:

[0016] A plurality of limit blocks are all slidably connected to the fixed frame, a first tension spring is fixedly connected between the limit blocks and the fixed frame, and an inclined surface is arranged on the limit blocks;

[0017] A limit plate is slidably connected to the fixed frame, and a second tension spring is fixedly connected between the limit plate and the fixed frame;

[0018] Two limit assemblies are both arranged on the sliding shaft and are used to limit the sequence of movement and swing of the base plate.

[0019] As a preferred embodiment of this solution, the fixing mechanism further includes:

[0020] A sliding plate is slidably connected to the fixed frame, a first spring is fixed between the sliding plate and the fixed frame, a rotating plate is rotatably connected to the sliding plate, a cylinder is provided on the fixed frame, a rectangular frame is provided on the rotating plate, the rectangular frame of the rotating plate slides with the cylinder on the fixed frame, so as to maintain the inclined state of the rotating plate.

[0021] As a preferred embodiment of this solution, the limit assembly includes:

[0022] A rotating ring, rotatably connected to the sliding shaft, the rotating ring is limitedly slidably connected to the fixed frame, and a toggle plate is fixedly connected to the rotating ring;

[0023] A limit bending rod is slidably connected in the sliding shaft, a second spring is fixed between the limit bending rod and the sliding shaft, the toggle plate is used to push the limit bending rod, a through hole is provided on the fixing seat, and the limit bending rod passes through the through hole of the fixing seat to relatively fix the sliding shaft and the fixing seat.

[0024] As a preferred embodiment of this solution, the buffer mechanism includes:

[0025] A fixed bent plate, fixedly connected to the sliding shaft, a first telescopic rod is rotatably connected to the fixed bent plate, a telescopic end of the first telescopic rod is hinged to the bottom plate, an upper and lower part of the first telescopic rod are commonly connected by a connecting pipe, a fixed shell is fixedly connected to the fixed bent plate, the connecting pipe is connected to the fixed shell, a straight plate is sealingly and slidably connected in the fixed shell, the first telescopic rod, the connecting pipe and the fixed shell are all filled with hydraulic oil, three through holes arranged in a straight line are arranged on the straight plate, a through hole at the edge of the three through holes on the straight plate has a smaller aperture than the other two through holes, only two through holes on the straight plate are provided for hydraulic oil to flow at the same time, and a one-way valve is arranged in the middle through hole on the straight plate;

[0026] The detection component is arranged on the bottom plate and is used for detecting whether a battery is placed on the bottom plate.

[0027] As a preferred embodiment of this solution, the detection component includes:

[0028] A sliding support plate is slidably connected to the bottom plate, a third tension spring is fixedly connected between the sliding support plate and the fixed frame, a second telescopic rod is fixedly connected to the fixed frame, a telescopic end of the second telescopic rod is fixedly connected to the sliding support plate, and the second telescopic rod is connected to a liquid guide tube;

[0029] The third telescopic rod is arranged on the fixed shell, the third telescopic rod is connected with the liquid guiding tube, the second telescopic rod and the third telescopic rod are both filled with hydraulic oil, the telescopic end of the third telescopic rod is fixedly connected with the straight plate, and the telescopic end of the third telescopic rod is sealed and slidably connected with the fixed shell.

[0030] As a preferred embodiment of this solution, a groove is provided on the bottom plate, the sliding support plate is embedded in the groove of the bottom plate, and the depth of the groove of the bottom plate is greater than the thickness of the sliding support plate.

[0031] As a preferred embodiment of this scheme, it also includes:

[0032] A speed control mechanism is disposed in the fixed housing and is used to control the extension speed of the telescopic end of the first telescopic rod. The speed control mechanism includes:

[0033] A sliding block is slidably connected in the fixed shell, and the sliding block is used to block another through hole on the upper edge of the straight plate. The fixed shell is threadedly connected with a threaded rod, and the threaded rod is rotatably connected to the sliding block.

[0034] Compared with the prior art, the present invention has at least the following beneficial effects: 1. The present invention reduces the steps of battery installation and the difficulty of battery installation and disassembly, thereby improving the efficiency of overall battery inspection and maintenance through horizontal movement and vertical swing of the base plate and the fixed frame.

[0035] 2. The present invention controls the sequence of movement and swinging of the bottom plate and the fixed frame by cooperating the limit bending rod in the limit assembly with the through hole on the fixed seat, so that the battery remains stable during the installation process, thereby improving the fluency of the operator in installing the battery.

[0036] 3. The present invention guides the hydraulic oil through the three through holes on the straight plate in the buffer mechanism to control the vertical swing speed of the bottom plate, reduce the possibility of the battery being subjected to severe collision, and ensure the safety of the battery.

[0037] 4. The present invention achieves the purpose of controlling the vertical swinging speed of the bottom plate by rotating the threaded rod in the speed control mechanism to change the blocking degree of the sliding block on the through hole on the straight plate, adapting to the operator's requirements for the battery removal speed under different circumstances and ensuring the battery replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0039] Figure 2 It is a three-dimensional structural schematic diagram of the mechanism in the cabinet of the present invention;

[0040] Figure 3 It is a three-dimensional structural schematic diagram of the parts at the fixed seat and the sliding shaft of the present invention;

[0041] Figure 4 It is an exploded view of the parts of the bottom plate and the fixing frame of the present invention;

[0042] Figure 5 It is a three-dimensional structural schematic diagram of the parts at the limit block and the limit plate of the present invention;

[0043] Figure 6 It is a three-dimensional structural schematic diagram of the parts of the sliding shaft and the sliding support plate of the present invention;

[0044] Figure 7 It is a three-dimensional structural schematic diagram of the parts of the rotating ring and the limit bending rod of the present invention;

[0045] Figure 8 It is a three-dimensional structural schematic diagram of the parts of the rotating ring and the toggle plate of the present invention;

[0046] Fig. 9 It is a schematic diagram of the three-dimensional structure of the parts of the fixed bent plate and the first telescopic rod of the present invention;

[0047] Fig.10It is a three-dimensional structural schematic diagram of the parts of the liquid guiding tube and the third telescopic rod of the present invention;

[0048] Fig.11 It is a three-dimensional structural schematic diagram of the sliding block and threaded rod parts of the present invention.

[0049] The marks in the accompanying drawings are: 1-cabinet, 2-fixed seat, 3-sliding shaft, 4-bottom plate, 5-fixed frame, 21-limiting block, 22-limiting plate, 23-sliding plate, 24-rotating plate, 6-partition plate, 31-rotating ring, 32-sliding plate, 33-limiting bent rod, 41-fixed bent plate, 42-first telescopic rod, 43-connecting tube, 44-fixed shell, 45-straight plate, 51-sliding support plate, 52-second telescopic rod, 53-liquid guide tube, 54-third telescopic rod, 61-sliding block, 62-threaded rod. DETAILED DESCRIPTION

[0050] The following is combined with Figure 1 -Attached Fig.11 , the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0051] Embodiment 1: In existing large-scale photovoltaic energy storage systems, during the process of installing the battery into the energy storage cabinet, the battery not only needs to be aligned with the bracket in the energy storage cabinet, but also needs to be inserted into the bracket in the energy storage cabinet in a horizontal state. If the battery is not accurately aligned with the bracket of the energy storage cabinet during this process, the battery will be stuck and require secondary alignment. Finally, the battery needs to be fixed by bolts and other parts. The installation steps of the battery are very cumbersome, which affects the overall inspection and maintenance efficiency of the battery.

[0052] A photovoltaic energy storage device that is easy to maintain, please refer to the attached Figure 1 -Attached Figure 6As shown, it includes: a cabinet 1, a plurality of storage units are arranged in the cabinet 1, and the storage units are used to store batteries. The storage units include: a fixed seat 2, which is arranged in the cabinet 1; a sliding shaft 3, which is slidably connected to the fixed seat 2; a bottom plate 4, which is slidably connected to the fixed seat 2; a fixed frame 5, which is fixed to the bottom plate 4, and the fixed frame 5 is slidably connected to the sliding shaft 3. A slope is arranged on one side of the fixed seat 2, and the slope of the fixed seat 2 is used to support the deflected bottom plate 4; a fixing mechanism is arranged on the fixed frame 5, and is used to fix the battery; a buffer mechanism is arranged on the sliding shaft 3, and is used to control the swinging speed of the bottom plate 4. A rectangular groove is arranged on one side of the fixed frame 5, and the sliding shaft 3 slides in the rectangular groove of the fixed frame 5. The height of the rectangular groove on the fixed frame 5 is greater than the diameter of the sliding shaft 3, and is used to increase the downward deflection angle of the bottom plate 4. A plurality of through holes are arranged on the cabinet 1, and the through holes on the cabinet 1 are flush with the adjacent fixed frames 5 , a plurality of partition plates 6 are sealed and slidably connected to the cabinet body 1, and the partition plates 6 are used to block adjacent through holes on the cabinet body 1. The fixing mechanism includes: a plurality of limit blocks 21, all of which are slidably connected to the fixed frame 5, a first tension spring is fixedly connected between the limit block 21 and the fixed frame 5, and an inclined surface is arranged on the limit block 21; a limit plate 22 is limitedly slidably connected to the fixed frame 5, and a second tension spring is fixedly connected between the limit plate 22 and the fixed frame 5; two limit assemblies are both arranged on the sliding shaft 3, and are used to limit the sequence of movement and swing of the bottom plate 4. The fixing mechanism also includes: a sliding plate 23, which is slidably connected to the fixed frame 5, a first spring is fixedly connected between the sliding plate 23 and the fixed frame 5, a rotating plate 24 is rotatably connected to the sliding plate 23, a cylinder is arranged on the fixed frame 5, and a rectangular frame is arranged on the rotating plate 24. The rectangular frame of the rotating plate 24 slides with the cylinder on the fixed frame 5 to maintain the inclined state of the rotating plate 24.

[0053] In the above scheme, it is intended to solve the problem of difficulty in replacing batteries at high places in energy storage cabinets in large-scale photovoltaic energy storage systems; the number of batteries installed in the cabinet 1 can be changed according to actual conditions. Five batteries can be placed in the cabinet 1 in this device, and the number of storage units in the cabinet 1 is five. The five installed batteries in the cabinet 1 are connected in series through wires, and the inclined surface on the fixing seat 2 is located at its front side and is inclined forward from top to bottom. The inclination angle of the inclined surface on the fixing seat 2 is the same as the maximum swing angle of the bottom plate 4. The number of upper limit blocks 21 on the same fixing frame 5 in this device is set to four, and there are two limit blocks 21 on the left and right sides of the fixing frame 5, and slide grooves are set on the left and right sides of the battery shell, with the limit block 21 on the left side as For example, the inclined surface of the limit block 21 is inclined from top to bottom and to the right. The inclined surface of the limit block 21 is used to guide the battery so that the battery can be quickly placed on the bottom plate 4, and the battery is limited by inserting the limit block 21 into the slide groove of the battery shell, so that the battery can only slide back and forth in close contact with the bottom plate 4. The limit plate 22 is located on the front side of the fixed seat 2, and the sliding plate 23 and the limit plate 22 cooperate to hinder the forward and backward movement of the battery. The rectangular frame on the rotating plate 24 is wrapped around the cylinder on the fixed frame 5, so that the rotating plate 24 is always in a state of tilting forward from top to bottom during the forward and backward movement of the sliding plate 23. The inclined rotating plate 24 is squeezed by the battery and pushes the sliding plate 23 to move backward, so that the battery enters between the sliding plate 23 and the limit plate 22.

[0054] Working process: In the process of using this device to store batteries, when the batteries need to be installed in the cabinet 1, taking the uppermost fixing seat 2 as an example, the operator pulls the bottom plate 4 and the fixing frame 5 forward, and the bottom plate 4 and the fixing frame 5 are moved out of the cabinet 1. Since the limiting component limits the bottom plate 4, the bottom plate 4 cannot swing. When the bottom plate 4 and the fixing frame 5 move forward to the limit, the limiting component releases the limit on the fixing frame 5, and the bottom plate 4 and the fixing frame 5 swing downward under the action of their own gravity. At the same time, the sliding shaft 3 moves downward in the rectangular groove of the fixing frame 5. Finally, after the bottom plate 4 is fitted with the inclined surface on the front side of the fixing seat 2, the bottom plate 4 and the fixing frame 5 stop moving, and the operator places the battery on the bottom plate 4. By moving the bottom plate 4 and the fixing frame 5 out of the cabinet 1 and keeping them tilted, it is convenient for the operator to place the battery on the bottom plate 4 smoothly.

[0055] In the process of placing the battery on the bottom plate 4, the battery first contacts and squeezes the rotating plate 24, and the rotating plate 24 drives the sliding plate 23 to move backward and compresses the first spring connected thereto. Since the rotating plate 24 is in an inclined state, the battery is guided to enter between the sliding plate 23 and the limiting plate 22, and then the battery squeezes the inclined surface of the limiting block 21. Taking the limiting block 21 on the left as an example, the limiting block 21 moves to the left and stretches the first tension spring connected thereto. When the battery is fitted with the bottom plate 4, the limiting block 21 moves to reset and clamps the battery under the tension of the first tension spring connected thereto, and at the same time, the sliding plate 23 pushes the battery forward under the elastic force of the first spring connected thereto. The battery stops after contacting the limit plate 22, and the rotating plate 24 combines with the limit plate 22 to fix the front and rear sides of the battery. Then the operator only needs to push the bottom plate 4 upward, and the bottom plate 4 and the fixed frame 5 drive the battery to swing upward, so that the bottom plate 4 returns to a horizontal state. If the operator loses the thrust on the bottom plate 4 due to hand cramps at this time, the sliding shaft 3 maintains an upward pulling force on the bottom plate 4 through the buffer mechanism, and the battery drives the bottom plate 4 to swing slowly downward under the action of gravity (the gravity of the battery is greater than the pulling force of the buffer mechanism on the bottom plate 4), which effectively reduces the probability of the battery slipping during the operator's installation of the battery, thereby ensuring the safety of the battery and the operator.

[0056] After the operator pushes the bottom plate 4 to a horizontal state, the limiting assembly re-limits the bottom plate 4 and the fixing frame 5, and then the operator can push the bottom plate 4 and the fixing frame 5 into the cabinet 1 to complete the installation of a battery, shortening the steps of battery installation and improving the convenience of battery installation and replacement. The above steps are repeated at the remaining fixing seats 2 to complete the installation of all batteries. When the battery is inspected and repaired, if the weather is bad, the operator can slide the partition plate 6 to open the through hole on the side of the cabinet 1, observe the status of the battery, check the battery, and reduce the possibility of external rain or dust entering the cabinet 1. When the battery needs to be replaced, first remove the wires connected to the battery to be replaced, and then the operator repeats the above steps of pulling the bottom plate 4 and the fixing frame 5 forward and then swinging it downward.

[0057] During the forward movement of the bottom plate 4 and the fixing frame 5, when the bottom plate 4 and the fixing frame 5 drive the battery to move to the frontmost side, the buffer mechanism controls the bottom plate 4 and the battery to slowly swing downward under the gravity of the battery. When the bottom plate 4 contacts the inclined surface of the fixing seat 2, the bottom plate 4 stops swinging. The operator only needs to pull the limit plate 22 to the left, and the limit plate 22 stretches the second tension spring connected to it. The limit plate 22 releases the obstruction to the front side of the battery, and the battery slides downward along the bottom plate 4. The operator takes away the battery and then stops pulling the limit plate 22. The limit plate 22 moves and resets under the tension of the second tension spring connected to it. Repeat the above steps to complete the new The battery can be installed, and finally the bottom plate 4 and the fixing frame 5 are controlled to be reset, and the battery replacement operation can be completed. When the battery needs to be repaired, the operator can pull out all the bottom plates 4 and the fixing frames 5 at the same time when the wires of all the batteries are connected (at this time, the bottom plate 4 and the fixing frame 5 are not moved to the frontmost side, that is, the bottom plate 4 and the fixing frame 5 do not swing downward), which is convenient for the operator to check the battery wire connection and the internal shell. When the battery inspection is completed, all the bottom plates 4 and the fixing frames 5 are pushed back into the cabinet 1, and all parts are restored to their initial positions. The method of pulling out the battery for inspection improves the convenience of battery inspection.

[0058] Please refer to the attached Figure 3 -Attached Fig.11 As shown, the limit assembly includes: a rotating ring 31, which is rotatably connected to the sliding shaft 3, the rotating ring 31 is slidably connected to the fixed frame 5, and a toggle plate 32 is fixedly connected to the rotating ring 31; a limit bending rod 33, which is slidably connected to the sliding shaft 3, and a second spring is fixedly connected between the limit bending rod 33 and the sliding shaft 3, and the toggle plate 32 is used to push the limit bending rod 33, and a through hole is provided on the fixed seat 2, and the limit bending rod 33 passes through the through hole of the fixed seat 2 to relatively fix the sliding shaft 3 and the fixed seat 2.

[0059] In the above scheme, the purpose is to control the order of translation and swinging of the base plate 4 and the fixed frame 5 to ensure the consistency of the battery installation sequence and process; only when the sliding shaft 3 moves to the frontmost side, the limit bending rod 33 is aligned with the through hole on the fixed seat 2, and the sliding shaft 3 moves on the fixed seat 2. The rotating ring 31 and the fixed frame 5 cannot rotate relative to each other. The rotating ring 31 is composed of a circular ring and an L-shaped bent plate. The rotating ring 31 rotates synchronously with the fixed frame 5 through the L-shaped bent plate.

[0060] Working process: in the process of the bottom plate 4 and the fixed frame 5 driving the sliding shaft 3 to move forward, since the fixed seat 2 blocks the limit bending rod 33 in the sliding shaft 3 from extending, the fixed frame 5 cannot drive the limit bending rod 33 to move through the rotating ring 31 and the toggle plate 32, so that the bottom plate 4 and the fixed frame 5 remain in a horizontal state during the forward movement. When the bottom plate 4 and the fixed frame 5 move to the frontmost side, the limit bending rod 33 is aligned with the through hole on the fixed seat 2. At this time, the bottom plate 4 and the fixed frame 5 swing downward, and the fixed frame 5 drives the limit bending rod 33 to move upward through the rotating ring 31 and the toggle plate 32. The limit bending rod 33 compresses the second spring connected to it, and the limit bending rod 33 is inserted into the through hole on the fixed seat 2. When the battery is installed on the bottom plate 4, the operator pushes the bottom plate 4 upward. The plate 4, the limit bending rod 33 limits the sliding shaft 3, the bottom plate 4 and the fixed frame 5 only swing upward, and the bottom plate 4 and the fixed frame 5 stop moving after swinging to a horizontal state. In the process of the bottom plate 4 swinging upward, the rotating ring 31 and the toggle plate 32 are gradually reset with the fixed frame 5. At the same time, the limit bending rod 33 is gradually moved and reset under the elastic force of the second spring connected thereto. When the bottom plate 4 and the fixed frame 5 swing to a horizontal state, the limit bending rod 33 returns to its initial position, and the limit bending rod 33 moves out of the through hole of the fixed seat 2. The limit of the fixed seat 2 by the limit bending rod 33 is released. At this time, the bottom plate 4 and the fixed frame 5 can be pushed backward to reset, and the installation of the battery is completed. By controlling the movement and swinging sequence, the stability of the battery during installation and movement is guaranteed.

[0061] Please refer to the attached Figure 5 , Attachment Figure 6 and attached Fig. 9 -Attached Fig.11As shown, the buffer mechanism includes: a fixed bent plate 41, which is fixedly connected to the sliding shaft 3, and a first telescopic rod 42 is rotatably connected to the fixed bent plate 41. The telescopic end of the first telescopic rod 42 is hinged to the bottom plate 4, and the upper and lower parts of the first telescopic rod 42 are commonly connected by a connecting pipe 43. The fixed bent plate 41 is fixedly connected to a fixed shell 44, and the connecting pipe 43 is connected to the fixed shell 44. A straight plate 45 is sealed and slidably connected in the fixed shell 44. The first telescopic rod 42, the connecting pipe 43 and the fixed shell 44 are all filled with hydraulic oil. The straight plate 45 is provided with three through holes arranged in a straight line. The aperture of one through hole at the edge of the three through holes on the straight plate 45 is smaller than that of the other two through holes. At the same time, the straight plate 45 has only two through holes for hydraulic oil to flow, and a one-way valve is provided in the middle through hole on the straight plate 45; a detection component is arranged on the bottom plate 4 , used to detect whether there are batteries placed on the bottom plate 4, the detection component includes: a sliding support plate 51, which is slidably connected to the bottom plate 4, a third tension spring is fixedly connected between the sliding support plate 51 and the fixed frame 5, a second telescopic rod 52 is fixedly connected to the fixed frame 5, the telescopic end of the second telescopic rod 52 is fixedly connected to the sliding support plate 51, and the second telescopic rod 52 is connected to the liquid guide tube 53; a third telescopic rod 54, which is arranged on the fixed shell 44, the third telescopic rod 54 is connected to the liquid guide tube 53, the second telescopic rod 52 and the third telescopic rod 54 are both filled with hydraulic oil, the telescopic end of the third telescopic rod 54 is fixedly connected to the straight plate 45, the telescopic end of the third telescopic rod 54 is sealed and slidably connected to the fixed shell 44, a groove is arranged on the bottom plate 4, the sliding support plate 51 is embedded in the groove of the bottom plate 4, and the depth of the groove of the bottom plate 4 is greater than the thickness of the sliding support plate 51.

[0062] In the above scheme, it is intended to solve the problem that after the battery is installed on the bottom plate 4, when the battery is pushed upward through the bottom plate 4, if the operator loses the thrust due to hand cramps, the battery is prone to rapid fall and violent collision, threatening the safety of the battery itself; the one-way valve in the middle through hole of the straight plate 45 only allows the hydraulic oil to flow downward through it, the rearmost through hole on the straight plate 45 is a small through hole, and a notch corresponding to the groove on the bottom plate 4 is provided on the fixing frame 5, and initially there is no battery on the bottom plate 4 In this case, the sliding support plate 51 is located in the notch on the fixed frame 5. Initially, when there is no battery on the bottom plate 4, the hydraulic oil entering the connecting pipe 43 flows through the through hole on the front side of the straight plate 45 in the fixed shell 44 and the one-way valve. At this time, the bottom plate 4 can swing up and down quickly. The flow areas of the two through holes on the front side of the straight plate 45 are both larger than the flow area of ​​the connecting pipe 43, and the flow area of ​​the through hole on the rear side of the straight plate 45 is smaller than the flow area of ​​the connecting pipe 43. In this embodiment, the fixed shell 44 is used to block the through hole on the front side of the straight plate 45 and the small through hole on the rear side.

[0063] Working process: During the initial installation of the battery, when the base plate 4 and the fixed frame 5 swing downward, the base plate 4 drives the telescopic end of the first telescopic rod 42 to extend, and the hydraulic oil in the lower part of the first telescopic rod 42 flows to its upper part through the connecting pipe 43 and the fixed shell 44. During the downward swinging of the base plate 4, the first telescopic rod 42 swings clockwise (from left to right), and the hydraulic oil flows through the connecting pipe 43 and the through hole in the front of the straight plate 45. At this time, the base plate 4 and the fixed frame 5 can swing up and down freely. During the installation of the battery on the base plate 4, the battery pushes the sliding support plate 51 into the groove of the base plate 4, and the sliding support plate 51 stretches the third tension spring connected to it, and the sliding support plate 51 drives the telescopic end of the second telescopic rod 52 to extend, and the hydraulic oil in the second telescopic rod 52 enters the third telescopic rod 54 through the liquid guide tube 53. The telescopic end of the third telescopic rod 54 extends and drives the straight plate 45 to move forward. After the straight plate 45 moves, it appears as an attached Fig.10 In the state, the hydraulic oil entering the fixed shell 44 flows upward through the small through hole and the one-way valve at the rear side of the straight plate 45.

[0064] After the battery is installed on the bottom plate 4, the operator pushes the bottom plate 4 upward, and the hydraulic oil in the upper part of the first telescopic rod 42 flows back to the lower part through the connecting pipe 43, the fixing shell 44, the small through hole on the rear side of the straight plate 45 and the one-way valve, and the bottom plate 4 swings upward quickly. When the bottom plate 4 becomes horizontal, the bottom plate 4 stops swinging. During the upward swinging of the bottom plate 4, if the bottom plate 4 loses the upward thrust of the operator, the bottom plate 4 swings downward under the action of the gravity of the battery, and the hydraulic oil in the lower part of the first telescopic rod 42 only flows through the connecting pipe 43. , the hydraulic oil in the third telescopic rod 54 flows back to the second telescopic rod 52 through the small through-holes on the rear side of the fixed shell 44 and the straight plate 45, so that the bottom plate 4 slowly swings downward, reducing the possibility of the battery being subjected to a severe collision or the bottom plate 4 hitting the battery wire connection on its lower side, thereby ensuring the safety of the battery during installation. During the battery replacement process, when the battery is removed from the bottom plate 4, the sliding support plate 51 moves upward and resets under the elastic force of the third tension spring connected to it, and the hydraulic oil in the third telescopic rod 54 flows back to the second telescopic rod 52 through the liquid guide tube 53, and the straight plate 45 moves and resets.

[0065] Example 2: Based on Example 1, please refer to the attached Fig.10 and attached Fig.11 As shown, it also includes: a speed control mechanism, which is arranged in the fixed shell 44 and is used to control the extension speed of the telescopic end of the first telescopic rod 42. The speed control mechanism includes: a sliding block 61, which is slidably connected in the fixed shell 44, and the sliding block 61 is used to block another through hole on the upper edge of the straight plate 45. The fixed shell 44 is threadedly connected with a threaded rod 62, and the threaded rod 62 is rotatably connected to the sliding block 61.

[0066] In the above scheme, the operator is intended to adjust the speed of the slow downward swing of the bottom plate 4 in real time according to actual conditions; in this embodiment, when there is a battery on the bottom plate 4, the fixed shell 44 does not block the through hole on the front side of the straight plate 45, but the sliding block 61 blocks the through hole on the front side of the straight plate 45; when it is necessary to replace the battery in the device, the operator first rotates the threaded rod 62, and the threaded rod 62 drives the sliding block 61 to move forward in the fixed shell 44, and the through hole on the front side of the straight plate 45 is gradually unblocked, and then the operator After the operator pulls the bottom plate 4 and the fixed frame 5 forward to the limit, the bottom plate 4 and the fixed frame 5 drive the battery to slowly swing downward. At this time, in addition to flowing through the small through-holes of the straight plate 45, part of the hydraulic oil entering the fixed shell 44 flows upward through the through-holes on the front side of the straight plate 45, and the downward swinging speed of the bottom plate 4 increases. Through the real-time control of the operator, the operator can change the swinging speed of the bottom plate 4 according to the needs, thereby improving the convenience of the device for battery replacement and ensuring the battery replacement efficiency.

[0067] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A photovoltaic energy storage device that is easy to maintain, characterized in that: include: A cabinet (1), wherein a plurality of storage units are arranged in the cabinet (1), and the storage units are used to store batteries, and the storage units include: A fixing seat (2) is arranged in the cabinet (1); A sliding shaft (3) slidably connected to the fixing seat (2); A bottom plate (4) slidably connected to the fixing seat (2); A fixed frame (5) is fixedly connected to the bottom plate (4); the fixed frame (5) is slidably connected to the sliding shaft (3); a slope is provided on one side of the fixed seat (2); the slope of the fixed seat (2) is used to support the tilted bottom plate (4); A fixing mechanism, arranged on the fixing frame (5) and used for fixing the storage battery; A buffer mechanism is arranged on the sliding shaft (3) and is used to control the swinging speed of the bottom plate (4).

2. A photovoltaic energy storage device that is easy to maintain according to claim 1, characterized in that: A rectangular groove is provided on one side of the fixed frame (5), and the sliding shaft (3) slides in the rectangular groove of the fixed frame (5). The height of the rectangular groove on the fixed frame (5) is greater than the diameter of the sliding shaft (3), so as to increase the downward deflection angle of the bottom plate (4).

3. A photovoltaic energy storage device that is easy to maintain according to claim 1, characterized in that: The cabinet (1) is provided with a plurality of through holes, the through holes on the cabinet (1) being flush with the adjacent fixing frames (5), and the cabinet (1) is sealed and slidably connected with a plurality of partition plates (6), the partition plates (6) being used to block adjacent through holes on the cabinet (1).

4. A photovoltaic energy storage device that is easy to maintain according to claim 3, characterized in that: The fixing mechanism comprises: A plurality of limit blocks (21) are all slidably connected to the fixed frame (5); a first tension spring is fixedly connected between the limit blocks (21) and the fixed frame (5); and an inclined surface is provided on the limit blocks (21); A limit plate (22) is slidably connected to the fixed frame (5) in a limit-positioned manner, and a second tension spring is fixedly connected between the limit plate (22) and the fixed frame (5); Two limit assemblies are both arranged on the sliding shaft (3) and are used to limit the sequence of movement and swinging of the base plate (4).

5. A photovoltaic energy storage device that is easy to maintain according to claim 4, characterized in that: The fixing mechanism also includes: A sliding plate (23) is slidably connected to the fixed frame (5); a first spring is fixedly connected between the sliding plate (23) and the fixed frame (5); a rotating plate (24) is rotatably connected to the sliding plate (23); a cylinder is provided on the fixed frame (5); a rectangular frame is provided on the rotating plate (24); the rectangular frame of the rotating plate (24) slides with the cylinder on the fixed frame (5) to maintain the tilted state of the rotating plate (24).

6. A photovoltaic energy storage device that is easy to maintain according to claim 5, characterized in that: The limiting component comprises: A rotating ring (31) is rotatably connected to the sliding shaft (3); the rotating ring (31) is slidably connected to the fixed frame (5); and a toggle plate (32) is fixedly connected to the rotating ring (31); A limit bending rod (33) is slidably connected in the sliding shaft (3); a second spring is fixedly connected between the limit bending rod (33) and the sliding shaft (3); the toggle plate (32) is used to push the limit bending rod (33); a through hole is provided on the fixing seat (2); the limit bending rod (33) passes through the through hole of the fixing seat (2) to relatively fix the sliding shaft (3) and the fixing seat (2).

7. A photovoltaic energy storage device that is easy to maintain according to claim 6, characterized in that: The buffer mechanism comprises: A fixed bent plate (41) is fixedly connected to the sliding shaft (3); a first telescopic rod (42) is rotatably connected to the fixed bent plate (41); a telescopic end of the first telescopic rod (42) is hinged to the bottom plate (4); upper and lower parts of the first telescopic rod (42) are commonly connected to a connecting pipe (43); the fixed bent plate (41) is fixedly connected to a fixed shell (44); the connecting pipe (43) is connected to the fixed shell (44); a straight plate (45) is sealingly and slidably connected inside the fixed shell (44); the first telescopic rod (42), the connecting pipe (43) and the fixed shell (44) are all filled with hydraulic oil; three through holes arranged in a straight line are provided on the straight plate (45); a through hole at the edge of the three through holes on the straight plate (45) has a smaller aperture than the other two through holes; at the same time, only two through holes of the straight plate (45) are provided for the flow of hydraulic oil; a one-way valve is provided in the middle through hole on the straight plate (45); A detection component is arranged on the bottom plate (4) and is used to detect whether a storage battery is placed on the bottom plate (4).

8. The photovoltaic energy storage device that is easy to maintain according to claim 7, characterized in that: The detection component comprises: A sliding support plate (51) is slidably connected to the bottom plate (4); a third tension spring is fixedly connected between the sliding support plate (51) and the fixed frame (5); a second telescopic rod (52) is fixedly connected to the fixed frame (5); a telescopic end of the second telescopic rod (52) is fixedly connected to the sliding support plate (51); and the second telescopic rod (52) is connected to a liquid guide tube (53); A third telescopic rod (54) is disposed on the fixed shell (44). The third telescopic rod (54) is in communication with the liquid guiding tube (53). Hydraulic oil is filled into the second telescopic rod (52) and the third telescopic rod (54). The telescopic end of the third telescopic rod (54) is fixedly connected to the straight plate (45). The telescopic end of the third telescopic rod (54) is sealed and slidably connected to the fixed shell (44).

9. A photovoltaic energy storage device that is easy to maintain according to claim 8, characterized in that: The bottom plate (4) is provided with a groove, the sliding support plate (51) is embedded in the groove of the bottom plate (4), and the depth of the groove of the bottom plate (4) is greater than the thickness of the sliding support plate (51).

10. The photovoltaic energy storage device that is easy to maintain according to claim 8, characterized in that: Also includes: A speed control mechanism is disposed in the fixed shell (44) and is used to control the extension speed of the telescopic end of the first telescopic rod (42), the speed control mechanism comprising: A sliding block (61) is slidably connected in the fixed shell (44), and the sliding block (61) is used to block another through hole on the upper edge of the straight plate (45). The fixed shell (44) is threadedly connected to a threaded rod (62), and the threaded rod (62) is rotatably connected to the sliding block (61).

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