Electric pile fixing device of all-vanadium redox flow battery

Abstract

The utility model discloses an all-vanadium redox flow battery electric pile fixing device which comprises an upper fixing frame and a lower fixing frame which are the same in structure and are symmetrically arranged up and down, the lower fixing frame is fixedly connected with the inner wall of an energy storage container, the upper fixing frame is vertically connected with the inner wall of the energy storage container in a sliding mode, and the lower fixing frame comprises a vertical mounting plate and a horizontal mounting plate, the inner wall is attached to the inner wall of the energy storage container; the transverse supporting plate is vertically and fixedly connected with the vertical mounting plate; and the multiple positioning back plates are located above the transverse supporting plate and elastically connected with the vertical mounting plate through rear springs, the telescopic direction of the rear springs is perpendicular to the vertical mounting plate, the multiple positioning back plates are arranged at intervals, and a T-shaped plate is arranged between every two adjacent positioning back plates. According to the all-vanadium redox flow battery pile fixing device disclosed by the utility model, a plurality of piles of the same model can be fixedly connected with the inner wall of an energy storage container quickly, the piles are simple, convenient and quick to mount and dismount, time and labor are saved, and meanwhile, the safety of the piles is effectively protected.

Description

Technical Field

[0001] The utility model relates to the field of all-vanadium redox flow batteries, and particularly to a fixing device for an all-vanadium redox flow battery stack. Background Technique

[0002] As society demands a reduction in carbon emissions, people have started to pay attention to clean energy, and many green and environmentally friendly energy sources have been gradually developed, such as new power generation methods like wind power generation. There is a need for portable energy storage equipment to connect to the subsequent converted energy. Therefore, energy storage containers are designed for storing and converting energy.

[0003] As a good carrier, the container energy storage system has the characteristics of high reliability, high convenience, low power consumption, and perfect monitoring. Therefore, it has become an important component system in energy storage equipment and market applications. The internal of the energy storage container integrates a series of linkage management systems such as redox flow batteries, fire sprinklers, fire alarms, temperature and humidity detection, etc. It is a wide equipment container with a certain strength structure and special specifications, and can be flexibly customized to change the original energy management system according to requirements. At the same time, it can simplify and shorten the construction period, reduce costs, and is convenient for transportation and installation. It can be applied to various large electric load occasions such as power stations and factories.

[0004] Currently, for the convenience of installation, the all-vanadium redox flow battery stack in the energy storage container is generally directly placed in the container, which is also the common practice in the industry. After all, the weight of a single stack is still very large, and it is generally difficult to move by itself in the container. This is also introduced in the patent with the publication number CN221379442U.

[0005] As mentioned above, generally, there is no problem with directly placing the stack in the container. However, if the geographical environment of the installation location of the energy storage container is harsh, the soil is prone to displacement (such as frozen soil), and earthquakes occur frequently, then directly placing the stack in the container seems very unsafe. Once the energy storage container tilts or even capsizes, the stack will roll around and collide in the container and is easily damaged, resulting in huge economic losses.

[0006] Based on this, this new model is designed. Content of the Utility Model

[0007] The main purpose of the utility model is to propose a fixing device for an all-vanadium redox flow battery stack, aiming to enable the stack to be detachably and fixedly connected to the inner wall of the energy storage container, thereby solving the problems mentioned in the above background technique.

[0008] To solve the above problems, the utility model proposes a fixing device for an all-vanadium redox flow battery stack, which includes an upper fixing frame and a lower fixing frame that are identical in structure and symmetrically arranged up and down. The lower fixing frame can be fixedly connected to the inner wall of the energy storage container, and the upper fixing frame can be vertically slidably connected to the inner wall of the energy storage container;

[0009] The lower fixing frame includes:

[0010] A vertical mounting plate that can be attached to the inner wall of the energy storage container;

[0011] A horizontal support plate that is perpendicularly and fixedly connected to the vertical mounting plate;

[0012] A plurality of positioning back plates are located above the horizontal support plate and are elastically connected to the vertical mounting plate through rear springs. The telescopic direction of the rear springs is perpendicular to the vertical mounting plate. The plurality of positioning back plates are arranged at intervals, and a T-shaped plate is arranged between adjacent two positioning back plates. The T-shaped plate is horizontally slidably connected to the upper surface of the horizontal support plate, and the sliding direction is parallel to the vertical mounting plate.

[0013] In one embodiment, the lower fixing frame further includes:

[0014] A pair of L-shaped plates are symmetrically arranged at both ends of the horizontal support plate in the sliding direction of the T-shaped plate. A positioning back plate is arranged between the L-shaped plate and the T-shaped plate. One of the L-shaped plates is fixedly connected to the horizontal support plate, and the other L-shaped plate is slidably connected to the horizontal support plate, and the sliding direction is the same as the sliding direction of the T-shaped plate. A positioning bottom plate is elastically lifted and lowered on each L-shaped plate and the T-shaped plate through a vertical spring, and a positioning side plate is elastically connected to each L-shaped plate and the T-shaped plate through a side spring. The telescopic direction of the side spring is the same as the sliding direction of the T-shaped plate. The positioning side plate is vertically arranged and is located above the positioning bottom plate. The positioning side plate is perpendicular to the positioning back plate and the positioning bottom plate. A front baffle is detachably and fixedly installed at one end of each L-shaped plate and the T-shaped plate away from the vertical mounting plate. One end of the front baffle extends between adjacent two T-shaped plates or extends between the L-shaped plate and the T-shaped plate. One end of the front baffle facing the side of the vertical mounting plate is elastically connected to a cushion plate through a front spring. The telescopic direction of the front spring is the same as the telescopic direction of the rear spring;

[0015] A rotating shaft extends along the sliding direction of the T-shaped plate. Multiple sections of external threads are arranged axially on the outer circumferential surface of the rotating shaft. The pitches of the multiple sections of external threads form an arithmetic progression. A plurality of T-shaped plates and the other L-shaped plate are screwed to the rotating shaft through each section of external thread. The rotation of the rotating shaft drives the plurality of T-shaped plates and the other L-shaped plate to slide. One end of the rotating shaft is in transmission connection with a second motor.

[0016] In one embodiment, the positioning side plate is fixedly connected with a side guide rod, and the side guide rod is slidably inserted and connected with the L-shaped plate or the T-shaped plate.

[0017] In one embodiment, the positioning bottom plate is fixedly connected with a vertical guide rod, and the vertical guide rod is slidably inserted and connected with the L-shaped plate or the T-shaped plate.

[0018] In one embodiment, the L-shaped plate or the T-shaped plate is provided with a receiving hole for the rotating shaft to pass through, and the hole wall of the receiving hole does not contact the rotating shaft.

[0019] In one embodiment, the rotating shaft is rotatably connected to one of the L-shaped plates.

[0020] In one embodiment, rib plates are provided on the lower surface of the horizontal support plate of the lower fixing frame, and the rib plates are fixedly connected to the vertical mounting plates.

[0021] In one embodiment, only the upper surface of the positioning bottom plate on the lower fixing frame is self-rollingly installed with rolling balls.

[0022] In one embodiment, only the side surface of the positioning side plate on the upper fixing frame is self-rollingly installed with rolling balls.

[0023] In one embodiment, a plurality of through holes are uniformly distributed on the vertical mounting plate of the lower fixing frame;

[0024] A slider is fixedly installed on the vertical mounting plate of the upper fixing frame. The slider is screwed to a lead screw. The lead screw is vertically arranged and is in transmission connection with a first motor. The first motor can be fixedly connected to the inner wall of the energy storage container.

[0025] Beneficial effects: The all-vanadium redox flow battery stack fixing device of the present utility model can quickly fix a plurality of stacks of the same model to the inner wall of the energy storage container. The installation and disassembly of the stack are simple, convenient, fast, time-saving and labor-saving, and at the same time, the safety of the stack is effectively protected. Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0027] Figure 1 is the front view of an all-vanadium redox flow battery stack fixing device of the present utility model;

[0028] Figure 2 is Figure 1 the A-A cross-sectional view in

[0029] Figure 3 is Figure 2 the enlarged view of part B in

[0030] Figure 4 is the left view of the upper fixing frame and the lower fixing frame after removing the L-shaped plate, the rotating shaft and the T-shaped plate;

[0031] Figure 5 is the front view of the upper fixing frame and the lower fixing frame after removing the L-shaped plate, the rotating shaft and the T-shaped plate;

[0032] Figure 6 is Figure 1 the enlarged view of part C in

[0033] Figure 7 is Figure 1 the enlarged view of part D in

[0034] Figure 8 is Figure 1 the enlarged view of part E in

[0035] Figure 9 is Figure 1 the enlarged view of part F in

[0036] Figure 10 is Figure 1 the enlarged view of part G in

[0037] Figure 11 is Figure 1 the enlarged view of part H in

[0038] Figure 12 is the structural schematic diagram of the front baffle;

[0039] Figure 13 is the installation schematic diagram of the ball.

[0040] The description of the reference numerals in the drawings is as follows:

[0041] 1. Inner wall of the energy storage container; 2. Vertical mounting plate; 3. Horizontal support plate; 4. Rib plate; 5. Rear spring; 6. Positioning back plate; 7. Motor 1; 8. Slide block; 9. Lead screw; 10. L-shaped plate; 11. Positioning side plate; 12. Side spring; 13. Side guide rod; 14. Positioning bottom plate; 15. Vertical spring; 16. Vertical guide rod; 17. Rotating shaft; 18. Front baffle; 19. Connecting bolt; 20. Front spring; 21. Pad; 22. Through hole; 23. External thread; 24. T-shaped plate; 25. Accommodating hole; 26. Motor 2; 27. Ball; 100. Upper fixing frame; 101. Lower fixing frame. Specific embodiments

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0044] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0045] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0046] The present utility model provides a fixing device for a vanadium redox flow battery stack. The fixing device for the vanadium redox flow battery stack can quickly fix a plurality of battery stacks of the same model to the inner wall 1 of the energy storage container. The installation and disassembly of the battery stack are simple, convenient, fast, time-saving and labor-saving, and at the same time, the safety of the battery stack is effectively protected.

[0047] Specifically, in an embodiment of the utility model, as Figure 1 and Figure 2 shown, the fixing device for the vanadium redox flow battery stack includes an upper fixing frame 100 and a lower fixing frame 101 which have the same structure and are symmetrically arranged up and down. The same structure means that the structural compositions of the upper fixing frame 100 and the lower fixing frame 101 are completely the same. Therefore, after introducing the detailed structural composition of the lower fixing frame 101, there is no need to introduce the detailed structural composition of the upper fixing frame 100 again.

[0048] In this embodiment, asFigure 2 As shown, the lower fixing frame 101 can be fixedly connected to the inner wall 1 of the energy storage container, and the upper fixing frame 100 can be vertically slidably connected to the inner wall 1 of the energy storage container. With this design, after the all-vanadium redox flow battery stack is placed on the lower fixing frame 101, the upper fixing frame 100 is controlled to descend, and together with the lower fixing frame 101, the all-vanadium redox flow battery stack is clamped and fixed, so that the installation of the all-vanadium redox flow battery stack can be quickly completed.

[0049] Specifically, as Figure 1 , Figure 2 , Figure 4 and Figure 5 shown, the lower fixing frame 101 includes: a vertical mounting plate 2, a horizontal support plate 3, a plurality of positioning back plates 6, a pair of L-shaped plates 10, and a rotating shaft 17. The vertical mounting plate 2 can be attached to the inner wall 1 of the energy storage container. With this design, it is not only convenient for the vertical mounting plate 2 of the lower fixing frame 101 to be firmly and closely fixed to the inner wall 1 of the energy storage container, but also convenient for the vertical mounting plate 2 of the upper fixing frame 100 to slide smoothly and vertically on the inner wall 1 of the energy storage container. As Figure 5 shown, a plurality of through holes 22 are uniformly distributed on the vertical mounting plate 2 of the lower fixing frame 101. After the bolts pass through the through holes 22 and are fixedly connected to the inner wall 1 of the energy storage container, the detachable fixed connection between the lower fixing frame 101 and the inner wall 1 of the energy storage container can be realized.

[0050] In this embodiment, as Figure 1 , Figure 2 , Figure 4 and Figure 5 shown, the horizontal support plate 3 is perpendicularly and fixedly connected to the vertical mounting plate 2. The vertical mounting plate 2 is vertically arranged, and the horizontal support plate 3 is horizontally arranged. Further, a rib plate 4 is provided on the lower surface of the horizontal support plate 3 of the lower fixing frame 101, and the rib plate 4 is fixedly connected to the vertical mounting plate 2 and the horizontal support plate 3. With this design, the connection firmness between the horizontal support plate 3 and the vertical mounting plate 2 can be improved. Correspondingly, the horizontal support plate 3 and the vertical mounting plate 2 of the upper fixing frame 100 are also connected by the rib plate 4, as Figure 1 , Figure 2 , Figure 4 and Figure 5 shown.

[0051] In this embodiment, as Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, multiple positioning backplates 6 in the lower fixing frame 101 are located above the horizontal support plate 3 and are elastically connected to the vertical mounting plate 2 through the rear spring 5. The telescopic direction of the rear spring 5 is perpendicular to the vertical mounting plate 2. With this design, the back of the all-vanadium redox flow battery stack can be supported and positioned by the positioning backplates 6. The design of the rear spring 5 can buffer the vibration impact on the all-vanadium redox flow battery stack when the energy storage container tilts or even capsizes, absorb energy and reduce vibration, and prevent the all-vanadium redox flow battery stack from being damaged due to severe vibration or impact. For example, when the energy storage container falls from a height to the ground or is violently impacted by an external object, the design of the rear spring 5 can buffer and absorb the vibration impact on the all-vanadium redox flow battery stack, preventing the all-vanadium redox flow battery stack from being damaged due to severe vibration or impact. Correspondingly, multiple positioning backplates 6 in the upper fixing frame 100 are located below the horizontal support plate 3.

[0052] In this embodiment, as Figure 1 shown, multiple positioning backplates 6 are arranged at intervals and are arranged in a horizontal straight line. A T-shaped plate 24 is arranged between two adjacent positioning backplates 6. The T-shaped plate 24 in the lower fixing frame 101 is horizontally slidably connected to the upper surface of the horizontal support plate 3, and the T-shaped plate 24 in the upper fixing frame 100 is horizontally slidably connected to the lower surface of the horizontal support plate 3. The sliding direction is parallel to the vertical mounting plate 2, that is Figure 1 the T-shaped plate 24 and the L-shaped plate 10 slide horizontally left and right, as Figure 1 shown, the T-shaped plate 24 in the lower fixing frame 101 is in an inverted T shape.

[0053] In this embodiment, as Figure 1 shown, a pair of L-shaped plates 10 are symmetrically arranged at both ends of the horizontal support plate 3 in the sliding direction of the T-shaped plate 24. The L-shaped plates 10 are at the same height as the T-shaped plate 24. A positioning backplate 6 is arranged between the L-shaped plates 10 and the T-shaped plate 24. One of the L-shaped plates 10 is fixedly connected to the horizontal support plate 3, for example Figure 1 the L-shaped plate 10 at the left end of the horizontal support plate 3 in Figure 1 , and the other L-shaped plate 10 is slidably connected to the horizontal support plate 3, for example

[0054] In this embodiment, as Figures 1 - 3 、 Figures 6 - 11 shown, a positioning bottom plate 14 is elastically lifted and lowered on each L-shaped plate 10 and T-shaped plate 24 through a vertical spring 15. A positioning side plate 11 is elastically connected to each L-shaped plate 10 and T-shaped plate 24 through a side spring 12. The telescopic direction of the side spring 12 is the same as the sliding direction of the T-shaped plate 24. The positioning side plate 11 is vertically arranged. The positioning side plate 11 is perpendicular to the positioning backplate 6 and the positioning bottom plate 14. The positioning bottom plate 14 and the positioning side plate 11 on the lower fixing frame 101 are as Figure 1, Figures 6 - 9 As shown, the positioning bottom plate 14 and the positioning side plate 11 on the upper fixing frame 100 are as Figure 2 , Figure 3 , Figure 10 and Figure 11 shown. The vertical spring 15 is vertically arranged. One end of the vertical spring 15 is connected to the positioning bottom plate 14, and the other end is connected to the L-shaped plate 10 or the T-shaped plate 24. The positioning bottom plate 14 moves up and down to squeeze or stretch the vertical spring 15. The side spring 12 and the rear spring 5 are both horizontally arranged. The central axis of the side spring 12 is perpendicular to the central axis of the rear spring 5. The positioning side plate 11 moves along the sliding direction of the T-shaped plate 24 to squeeze or stretch the side spring 12. In the lower fixing frame 101, the positioning side plate 11 is located above the positioning bottom plate 14, and in the upper fixing frame 100, the positioning side plate 11 is located below the positioning bottom plate 14. As Figure 1 shown, when the all-vanadium redox flow battery stack is placed on the positioning bottom plate 14 on two adjacent T-shaped plates 24 in the lower fixing frame 101 or on the positioning bottom plate 14 on the L-shaped plate 10 and the T-shaped plate 24 adjacent to the L-shaped plate 10 in the lower fixing frame 101, control the horizontal movement of the T-shaped plate 24 to make the positioning side plates 11 on two adjacent T-shaped plates 24 on the upper fixing frame 100 and the lower fixing frame 101 approach each other to clamp and fix the all-vanadium redox flow battery stack, or control the horizontal movement of the T-shaped plate 24 adjacent to the L-shaped plate 10 to make the positioning side plate 11 on it approach the positioning side plate 11 on the L-shaped plate 10 to clamp and fix the all-vanadium redox flow battery stack. Then, control the upper fixing frame 100 to descend so that the positioning bottom plates 14 on the upper fixing frame 100 and the lower fixing frame 101 clamp and fix the all-vanadium redox flow battery stack. It can be seen that the upper and lower surfaces of the all-vanadium redox flow battery stack are clamped and fixed by the positioning bottom plates 14 on the upper fixing frame 100 and the lower fixing frame 101, the left and right surfaces of the all-vanadium redox flow battery stack are clamped and fixed by the positioning side plates 11 on the upper fixing frame 100 and the lower fixing frame 101 on its left and right sides, and the back of the all-vanadium redox flow battery stack, that is, the back surface, is tightly fixed by the positioning back plate 6. The settings of the vertical spring 15 and the side spring 12 can buffer the vibration and shock received by the all-vanadium redox flow battery stack when the energy storage container tilts or even capsizes, absorb energy and reduce vibration, and prevent the all-vanadium redox flow battery stack from being damaged due to severe vibration or shock.

[0055] In this embodiment, as Figure 1 , Figure 2 , Figure 6 shown, at one end of each L-shaped plate 10 and T-shaped plate 24 far from the vertical mounting plate 2, that is, the front ends of the L-shaped plate 10 and the T-shaped plate 24, a front baffle 18 is detachably and fixedly installed through a connecting bolt 19. As Figure 1 and Figure 6 shown, one end of the front baffle 18 extends between two adjacent T-shaped plates 24 or between the L-shaped plate 10 and the T-shaped plate 24. At the same time, as Figure 12As shown, one end of the front baffle 18 is elastically connected to a pad 21 through a front spring 20 on the side facing the vertical mounting plate 2, and the expansion and contraction direction of the front spring 20 is the same as that of the rear spring 5. In this way, when the front baffle 18 is fixedly connected to the L-shaped plate 10 or the T-shaped plate 24 through the connecting bolts 19, the pad 21 is pressed against the front side of the all-vanadium liquid flow battery stack under the compression of the front spring 20, and then cooperates with the positioning back plate 6 to limit and fix the all-vanadium liquid flow battery stack from the front and rear directions of the all-vanadium liquid flow battery stack. The setting of the front spring 20 can buffer the vibration impact of the all-vanadium liquid flow battery stack when the energy storage container is tilted or even overturned, absorb energy and reduce shock, and prevent the all-vanadium liquid flow battery stack from being damaged by severe vibration or impact.

[0056] In this embodiment, if Figure 1 and Figure 2 As shown, the rotating shaft 17 is arranged to extend along the sliding direction of the T-shaped plate 24. Figure 1 , Figure 7 and Figure 8 As shown, the outer circumferential surface of the rotating shaft 17 is provided with a plurality of external threads 23 in the axial direction, and the pitches of the plurality of external threads 23 form an arithmetic progression. Figure 1 The pitch of the multiple sections of external threads 23 gradually increases from left to right, and the multiple T-shaped plates 24 and Figure 1 The L-shaped plate 10 at the right end of the middle horizontal support plate 3 is screwed to the rotating shaft 17 through the corresponding sections of external threads 23. Figure 1 The L-shaped plate 10 at the left end of the middle horizontal support plate 3 is connected by rotation, so the total number of external threads 23 is equal to the total number of T-shaped plates 24 + 1, and the rotating shaft 17 rotates to drive the plurality of T-shaped plates 24 and Figure 1 The L-shaped plate 10 at the right end of the middle horizontal support plate 3 slides horizontally left and right, one end of the rotating shaft 17 is connected to the motor 26 for transmission, and the pitches of the multiple sections of external threads 23 form an arithmetic progression. Figure 1 The design of gradually increasing the pitch of the multi-segment external thread 23 from left to right makes the distance between two adjacent T-shaped plates 24 and the distance between the T-shaped plate 24 and the L-shaped plate 10 increase or decrease synchronously during the rotation of the rotating shaft 17, and the distance between any two adjacent T-shaped plates 24 and the distance between the T-shaped plate 24 and the L-shaped plate 10 always remain the same, thereby ensuring that after the all-vanadium liquid flow battery stack is placed between every two adjacent T-shaped plates 24 and between the T-shaped plate 24 and the L-shaped plate 10, the control motor 26 is rotated to clamp and fix all the all-vanadium liquid flow battery stacks on the all-vanadium liquid flow battery stack fixing device at the same time, achieving the technical effect of quickly fixing multiple stacks of the same type, and indirectly realizing the rapid fixing and connecting of multiple stacks of the same type to the inner wall 1 of the energy storage container, eliminating the trouble of installing, clamping and fixing the all-vanadium liquid flow battery stacks one by one, saving time and effort, and the installation and disassembly of the stack is simple, convenient and fast, effectively protecting the safety of the stack.

[0057] In this embodiment, preferably, the upper fixing frame 100 is vertically slidably connected to the inner wall 1 of the energy storage container in a specific manner as follows: Figure 1 and Figure 2 As shown, a slider 8 is fixedly mounted on the vertical mounting plate 2 of the upper fixing frame 100, and the slider 8 is screwed to a screw rod 9, the screw rod 9 is vertically arranged and transmission-connected to a motor 7, and the motor 7 can be fixedly connected to the inner wall 1 of the energy storage container.

[0058] Further, such as Figures 6 - 11 As shown, the positioning side plate 11 is fixedly connected with a side guide rod 13, and the side guide rod 13 is slidably plugged and connected with the L-shaped plate 10 or the T-shaped plate 24. The positioning bottom plate 14 is fixedly connected with a vertical guide rod 16, and the vertical guide rod 16 is slidably plugged and connected with the L-shaped plate 10 or the T-shaped plate 24. This design can improve the sliding stability of the positioning side plate 11 and the positioning bottom plate 14.

[0059] Further, such as Figure 7 and Figure 8 As shown, the L-shaped plate 10 and the T-shaped plate 24 are provided with a receiving hole 25 for the rotating shaft 17 to pass through, and the hole wall of the receiving hole 25 does not contact the rotating shaft 17. This design can reduce the screw connection length of the L-shaped plate 10 and the T-shaped plate 24 and the external thread 23, making it easy to increase the number of T-shaped plates 24 and the number of sections of the external thread 23 without increasing the length of the rotating shaft 17, thereby increasing the number of installation and fixation of the all-vanadium liquid flow battery stack.

[0060] Further, such as Figure 1 , Figures 6 - 9 As shown, only the upper surface of the positioning base plate 14 on the lower fixing frame 101 is self-rollingly mounted with a rolling ball. Figures 1 - 3 , Figures 10 - 11As shown, only the side of the positioning side plate 11 on the upper fixing frame 100 is self-rollingly installed with rolling balls. Such a design facilitates the lateral movement of the all-vanadium redox flow battery stack on the positioning bottom plate 14 during the process of two adjacent positioning side plates 11 approaching and clamping the all-vanadium redox flow battery stack, reducing friction. And it is also convenient for the upper fixing frame 100 to descend, enabling the all-vanadium redox flow battery stack to move upward along the side surface of the positioning side plate 11 on the upper fixing frame 100 during the process of the upper and lower pairs of positioning bottom plates 14 approaching and clamping the all-vanadium redox flow battery stack, reducing friction. Thus, it is beneficial to clamp and fix the all-vanadium redox flow battery stack and ensure the safety of the all-vanadium redox flow battery stack. In addition, no rolling balls are provided on the side surface of the positioning side plate 11 on the lower fixing frame 101, and no rolling balls are provided on the lower surface of the positioning bottom plate 14 on the upper fixing frame 100. The purpose is to retain a certain static friction with the all-vanadium redox flow battery stack, preventing the all-vanadium redox flow battery stack from easily moving along the upper surface of the positioning bottom plate 14 or the side surface of the positioning side plate 11 after being clamped and fixed by the all-vanadium redox flow battery stack fixing device, enhancing the safety of the all-vanadium redox flow battery stack. The installation form of the rolling balls on the upper surface of the positioning bottom plate 14 and the side surface of the positioning side plate 11 is as Figure 13 shown. The rolling balls on the upper surface of the positioning bottom plate 14 and the side surface of the positioning side plate 11 can only rotate around any ball diameter of themselves.

[0061] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A device for fixing a stack of an all-vanadium liquid flow battery, characterized in that: It comprises an upper fixing frame and a lower fixing frame which are identical in structure and symmetrically arranged up and down, wherein the lower fixing frame is fixedly connected to the inner wall of the energy storage container, and the upper fixing frame is vertically slidably connected to the inner wall of the energy storage container; The lower fixing frame comprises: The vertical mounting plate is fitted to the inner wall of the energy storage container; A horizontal support plate is vertically fixedly connected to the vertical mounting plate; Multiple positioning back plates are located above the transverse support plate and are elastically connected to the vertical mounting plate through a rear spring. The expansion and contraction direction of the rear spring is perpendicular to the vertical mounting plate. Multiple positioning back plates are arranged at intervals, and a T-shaped plate is arranged between two adjacent positioning back plates. The T-shaped plate is horizontally slidably connected to the upper surface of the transverse support plate, and the sliding direction is parallel to the vertical mounting plate.

2. The all-vanadium liquid flow battery stack fixing device according to claim 1, characterized in that: The lower fixing frame also includes: The cam is an L-shaped plate that is fixedly mounted on the left and right sides of the L-shaped plate, and the cam is connected to the L-shaped plate by a spring. The rotating shaft is extended and arranged along the sliding direction of the T-shaped plate. A plurality of sections of external threads are arranged axially on the outer circumferential surface of the rotating shaft. The pitches of the plurality of sections of external threads constitute an arithmetic progression. A plurality of T-shaped plates and another L-shaped plate are rotationally connected to the rotating shaft through each section of the external threads. The rotating shaft rotates to drive the plurality of T-shaped plates and another L-shaped plate to slide. One end of the rotating shaft is transmission-connected to the second motor.

3. The all-vanadium liquid flow battery stack fixing device according to claim 2, characterized in that: The positioning side plate is fixedly connected with a side guide rod, and the side guide rod is connected with the L-shaped plate or the T-shaped plate by sliding insertion.

4. The all-vanadium liquid flow battery stack fixing device according to claim 2, characterized in that: The positioning base plate is fixedly connected with a vertical guide rod, and the vertical guide rod is connected with the L-shaped plate or the T-shaped plate by sliding insertion.

5. The all-vanadium liquid flow battery stack fixing device according to claim 2, characterized in that: The L-shaped plate or the T-shaped plate is provided with a receiving hole for the rotating shaft to pass through, and the hole wall of the receiving hole does not contact with the rotating shaft.

6. The all-vanadium liquid flow battery stack fixing device according to claim 2, characterized in that: The rotating shaft is rotatably connected to one of the L-shaped plates.

7. The all-vanadium liquid flow battery stack fixing device according to claim 1, characterized in that: The lower surface of the horizontal support plate of the lower fixing frame is provided with a rib plate, and the rib plate is fixedly connected to the vertical mounting plate.

8. The all-vanadium liquid flow battery stack fixing device according to claim 1, characterized in that: The lower fixing frame has only the upper surface of the positioning bottom plate equipped with a rolling ball for self-rolling installation.

9. The all-vanadium liquid flow battery stack fixing device according to claim 1, characterized in that: Only the side surface of the positioning side plate on the upper fixing frame is self-rollingly mounted with a rolling ball.

10. The all-vanadium liquid flow battery stack fixing device according to claim 1, characterized in that: The vertical mounting plate of the lower fixing frame is evenly distributed with a plurality of through holes; A slider is fixedly mounted on the vertical mounting plate of the upper fixing frame, the slider is screwed to a screw rod, the screw rod is vertically arranged and transmission-connected to a motor 1, and the motor 1 is fixedly connected to the inner wall of the energy storage container.

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