Flow battery stack turnover and discharge apparatus and control method thereof

Abstract

The application provides a liquid flow battery stack turnover and discharging device and a control method thereof, wherein the turnover and discharging device comprises: a stack fixture comprising a bottom plate and a plurality of positioning rods, each positioning rod having a limiting position in contact with the outer periphery of the stack and a discharging yielding position disengaged from the outer periphery of the stack, and each positioning rod being switched between the limiting position and the discharging yielding position in a sliding manner; a transmission device comprising a transmission member for carrying and driving the stack fixture to move in a discharging direction; a turnover and discharging device downstream of the transmission member in the discharging direction, for turning over the stack fixture and the stack sent by the transmission member by 90°, and sending the stack turned over by 90° out of the stack fixture and out of the stack fixture, and when the stack fixture is sent into the turnover and discharging device, each positioning rod is switched to the discharging yielding position. The application only needs to switch each positioning rod between the two positions in a sliding manner, which saves time and effort and improves the efficiency of stack discharging and assembly.

Description

Technical Field

[0001] This invention relates to the field of flow battery stack assembly line design technology, specifically to a flow battery stack flipping and unloading device and its control method. Background Technology

[0002] A flow battery stack mainly consists of an outer end plate (including a bottom end plate and a top end plate), an insulating plate, an end frame, a current collector, and multiple individual cells stacked together. During stacking, positioning components (also called positioning rods) are used to ensure neat stacking. After the stack is compressed, it is flipped. This process presents the following problems: 1) The positioning components need to be removed before flipping and then reinstalled during re-stacking, making the operation cumbersome, time-consuming, and inefficient; 2) The stacking plates are not fixed during flipping, leading to displacement; 3) The stack lacks lateral limits during flipping, posing a safety hazard. This invention aims to solve at least one of the aforementioned technical problems. Summary of the Invention

[0003] One of the objectives of this invention is to provide a flow battery stack flipping and unloading device and its control method, which can flip the stack by 90° without removing the positioning rod from the bottom plate of the stack fixture when flipping and unloading the stacked flow battery stack. This eliminates the need to assemble the positioning rod again before using the stack fixture after unloading the stack, thus solving the problem of repeated disassembly and reassembly of the positioning rod on the stack fixture in the prior art, saving time and effort, and improving the efficiency of stack unloading and assembly.

[0004] The purpose of this invention is to provide a flow battery stack flipping and unloading device, comprising:

[0005] An electric stack fixture includes a base plate and a plurality of positioning rods. An electric stack support assembly is formed in the central area of ​​the base plate. Each positioning rod is spaced around the electric stack support assembly to limit the outer periphery of the stacked electric stacks. Each positioning rod has a limiting position that contacts the outer periphery of the electric stack and a discharge clearance position that disengages from the outer periphery of the electric stack. Each positioning rod switches between the limiting position and the discharge clearance position in a sliding manner.

[0006] A conveying device, including a conveying component, is used to carry and drive the fuel cell stack fixture to move along the feeding direction;

[0007] The flipping and unloading device is located downstream of the unloading direction of the conveyor, and is used to flip the fuel cell stack fixture and the fuel cell stack fed into the conveyor by 90°, and to send the fuel cell stack after flipping by 90° out of the fuel cell stack fixture. When the fuel cell stack fixture is fed into the flipping and unloading device, each of the positioning rods is switched to the unloading yielding position.

[0008] In some implementations...

[0009] Each of the positioning rods is connected to the base plate via a sliding positioning assembly. The sliding positioning assembly includes a first slider, a first slide rail, and a locking member. One of the first slider and the first slide rail is connected to the bottom end of the positioning rod, and the other is connected to the top surface of the base plate. The locking member can lock the relative position of the first slider and the first slide rail.

[0010] In some implementations...

[0011] The flipping and unloading device includes a first support part and a second support part arranged at right angles. The second support part includes a sliding plate. The flipping and unloading device has a receiving position and a unloading position. When the flipping and unloading device is in the receiving position, the fuel cell stack fixture carrying the fuel cell stack inside it can enter the flipping and unloading device under the action of the transfer member, so that the first side of the fuel cell stack fits against the sliding plate. When the flipping and unloading device is in the unloading position, the sliding plate can send the fuel cell stack on it and inside the fuel cell stack fixture out of the fuel cell stack fixture.

[0012] In some implementations...

[0013] With reference to the orientation of the flipping and unloading device at the receiving position, there is a pull plate below the bearing surface of the slide plate. When the first side of the fuel cell stack is in contact with the slide plate, the bottom end plate of the fuel cell stack is above the pull plate.

[0014] In some implementations...

[0015] The second support part further includes a first fixed frame, and the slide plate is slidably connected to the side of the first fixed frame facing the first support part. The first fixed frame has two limiting components arranged at intervals. The two limiting components are respectively located on the left and right sides of the slide plate. The limiting component includes a first limiting strip. When the flipping and unloading device is in the receiving position, the first limiting strip is located on the top edge area of ​​the stacking plate of the electric stack fixture.

[0016] In some implementations...

[0017] The limiting component also includes a second limiting strip. When the flipping and unloading device is in the receiving position, the two second limiting strips are respectively attached to the left and right sides of the bottom end plate of the fuel cell stack.

[0018] In some implementations...

[0019] The limiting assembly further includes a stiffening rib plate, the first limiting strip and the second limiting strip are detachably connected to the side of the stiffening rib plate facing the fuel cell stack, and the limiting assembly is connected to the first fixing frame via the stiffening rib plate; and / or,

[0020] The first supporting part includes a second fixed frame, and a pivot structure is provided at the connection position between the first fixed frame and the second fixed frame. The flipping and unloading device is rotatably connected to the flipping bracket through the pivot structure.

[0021] In some implementations...

[0022] The flipping and unloading device further includes a first telescopic rod and a second telescopic rod. The first telescopic rod is connected between the first fixed frame and the flipping bracket to drive the flipping and unloading device to flip and switch from the unloading position to the receiving position. The second telescopic rod is connected between the second fixed frame and the transmission device to drive the flipping and unloading device to flip and switch from the receiving position to the unloading position. During the flipping and unloading process, the first telescopic rod and the second telescopic rod act in opposite directions.

[0023] In some implementations...

[0024] The flipping and unloading device also includes an unloading drive component for driving the slide plate to move a preset distance along the unloading direction, and / or, a slide rail assembly is provided between the slide plate and the first fixed frame.

[0025] The present invention also provides a control method for the flow battery stack flipping and feeding device as described above, comprising the following steps:

[0026] Slide each positioning rod in the fuel cell jig on the transmission component to the unloading yielding position and lock it, and put the flipping unloading device in the receiving position;

[0027] Control the transmission component to move along the feeding direction to send the fuel cell stack fixture carrying the fuel cell stack into the flipping feeding device until the first side of the fuel cell stack fixture is in contact with the slide plate, then control the transmission component to stop moving.

[0028] Control the tilting and unloading device to tilt 90° to switch to the unloading position;

[0029] The slide plate is controlled to move along the feeding direction so that the fuel cell stack is delivered outside the fuel cell stack fixture.

[0030] The present invention relates to a flow battery stack flipping and unloading device and its control method: each positioning rod in the stack fixture switches between the limiting position and the unloading yielding position in a sliding manner, so that when flipping and unloading the stack fixture and the stack inside it, it is not necessary to repeatedly disassemble and assemble each positioning rod from the base plate, but only to slide and switch each positioning rod between the two positions, which saves time and effort and improves the efficiency of stack unloading and assembly. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below. It should be understood that the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention, wherein:

[0032] Figure 1 This is a three-dimensional structural schematic diagram of the flow battery stack flipping and unloading device according to an embodiment of the present invention.

[0033] Figure 2 yes Figure 1 The diagram shows a three-dimensional structure of the flipping and feeding device, which is located at the material receiving position.

[0034] Figure 3 yes Figure 1 A three-dimensional structural diagram of the fuel cell stack fixture.

[0035] Figure 4 This is a three-dimensional structural diagram of the flipping and unloading device in the unloading position according to an embodiment of the present invention (including the fuel cell stack fixture and the fuel cell stack inside).

[0036] In the picture:

[0037] 1. Fuel cell stack fixture; 11. Base plate; 111. Fuel cell stack support assembly; 1111. Stacking plate; 1112. Support boss; 12. Positioning rod; 131. First slider; 132. First slide rail; 133. Locking component; 2. Transmission device; 21. Transmission component; 22. Transmission bracket; 3. Tilting and unloading device; 31. First bearing part; 32. Second bearing part; 321. Slide plate; 3211. Pull plate; 323. First fixed frame; 324. Rotating shaft structure; 325. Limiting assembly; 3251. First limiting strip; 3252. Second limiting strip; 3253. Rigidity reinforcing rib; 326. Slide rail assembly; 3261. Second slider; 3262. Second slide rail; 331. First telescopic rod; 332. Second telescopic rod; 34. Tilting bracket; 100. Fuel cell stack.

[0038] It should be noted that the elements in the attached diagram are schematic and not drawn to scale. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0040] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which the subject matter of this invention pertains. It will be further understood that terms such as those defined in commonly used dictionaries shall be interpreted as having the meaning consistent with their meaning in the context of the specification and in the related art, and shall not be interpreted in an idealized or overly formal form unless otherwise explicitly defined herein. As used herein, statements of “connecting” or “coupling” two or more parts together shall mean that these parts are directly joined together or joined through one or more intermediate components.

[0041] For ease of description, spatial relative terms such as “above,” “below,” “left,” “right,” “top,” and “bottom” are used here to describe the spatial positional relationship of a device or element to other devices or elements, as shown in the figures. For example, the terms “on,” “above,” “above,” “on the upper surface of,” “above,” “positioned on,” or “positioned on top of” mean that a first element, such as a first structure, exists on a second element, such as a second structure, where an intermediate element may or may not be present between the first and second elements. The term “contact” means connecting a first element, such as a first structure, and a second element, such as a second structure, where there may or may not be other elements at the interface between the two elements. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as “above” or “on top of” other devices or structures will subsequently be positioned “below” or “under” other devices or structures. Thus, the exemplary term “above” can include both orientations of “above” and “below”. The device can also be positioned in other different ways, rotated 90 degrees, or in other orientations, and the spatial relative descriptions used here are explained accordingly.

[0042] Please refer to the reference. Figures 1 to 4 As shown, according to an embodiment of the present invention, a flow battery stack flipping and unloading device is provided, comprising:

[0043] The fuel cell stack fixture 1 includes a base plate 11 and a plurality of positioning rods 12. A fuel cell stack support assembly 111 is formed in the central region of the base plate 11. The fuel cell stack support assembly 111 includes a support boss 1112 and a stacking plate 1111. The support boss 1112 has an upward-facing protruding surface. The stacking plate 1111 is fitted onto the outer periphery of the protruding surface. A plurality of receiving holes and slots are formed on the stacking plate 1111 for accommodating fastening springs and corresponding fasteners on the outer side of the bottom end plate of the fuel cell stack 100. Each of the positioning rods 12 is spaced around the battery stack support assembly 111 to limit the outer periphery of the stacked battery stack 100. The length of each positioning rod 12 is adapted to the stack height of the stacked battery stack 100. Each positioning rod 12 has a limiting position that contacts the outer periphery of the battery stack 100 and a material discharge yielding position that disengages from the outer periphery of the battery stack 100. Each positioning rod 12 switches between the limiting position and the material discharge yielding position in a sliding manner.

[0044] The conveying device 2 includes a conveying component 21 for carrying and driving the fuel cell stack fixture 1 to move along the feeding direction. In a specific embodiment, the conveying component 21 is a commonly used double-speed chain, which is mounted on the conveying support 22. The feeding direction is described in detail below. Figure 1 The direction shown is from left to right. The aforementioned transmission member 21 is preferably able to be driven to rotate in both directions to achieve bidirectional transport of the object it carries.

[0045] The flipping and unloading device 3 is located downstream of the unloading direction of the conveying member 21 (i.e., Figure 1 (To the right of the indicated orientation) is used to rotate the electrode stack fixture 1 and electrode stack 100 fed by the transfer member 21 by 90°, and to send the electrode stack 100 out of the electrode stack fixture 1 after being rotated by 90°. When the electrode stack fixture 1 is fed into the rotating unloading device 3, each of the positioning rods 12 is switched to the unloading yielding position, that is, the positioning rods 12 at this time will not cause any obstruction to the sending out of the electrode stack 100 (e.g., friction, clamping that prevents the electrode stack 100 from being sent out of the electrode stack fixture 1).

[0046] In this technical solution, each positioning rod 12 in the fuel cell stack fixture 1 switches between the limiting position and the unloading yielding position in a sliding manner. Therefore, when flipping and unloading the fuel cell stack fixture 1 and the fuel cell stack 100 inside it, it is not necessary to repeatedly disassemble and reassemble each positioning rod 12 from the base plate 11. It is only necessary to slide and switch each positioning rod 12 between the two positions mentioned above, which saves time and effort and improves the efficiency of fuel cell stack unloading and assembly.

[0047] It should be noted that when the positioning rods 12 on the existing fuel cell stack fixture 1 are flipped over, the positioning rods 12 need to be removed from the base plate 11 and reassembled after flipping and unloading. This is especially time-consuming and labor-intensive when there are a large number of positioning rods 12, and there is a possibility that they cannot be reassembled.

[0048] In some implementation methods, see details. Figure 3 As shown, each of the positioning rods 12 is connected to the base plate 11 via a sliding positioning assembly. The sliding positioning assembly includes a first slider 131, a first slide rail 132, and a locking member 133. One of the first slider 131 and the first slide rail 132 is connected to the bottom end of the positioning rod 12 (by welding or bolting, etc.), and the other is connected to the top surface of the base plate 11. The locking member 133 can lock the relative position of the first slider 131 and the first slide rail 132. It is understood that the first slider 131 and the first slide rail 132 slide against each other and can form an anti-disengagement mechanism (for example, through a T-shaped fit). The aforementioned locking member 133 can specifically be a hand-tightening bolt.

[0049] In this technical solution, a sliding connection is formed between the bottom end of each positioning rod 12 and the base plate 11 through a sliding positioning component. When the operator needs to adjust the position of the positioning rod 12, he / she can manually turn the locking part 133 to release its locking function, apply force to the positioning rod 12 to make it slide a certain distance along the guiding direction of the first slide rail 132, and then manually turn the locking part 133 in the opposite direction to realize the positioning of each positioning rod 12 in the corresponding position. During the position switching process, the positioning rod 12 does not disengage from the base plate 11. Its disassembly and assembly process is only a sliding displacement and turning operation, which is very simple and convenient.

[0050] In some implementation methods, see details. Figure 2 As shown, the flipping and unloading device 3 includes a first supporting part 31 and a second supporting part 32 arranged at right angles, that is, the first supporting part 31 and the second supporting part 32 are arranged perpendicular to each other. The second supporting part 32 includes a sliding plate 321. The flipping and unloading device 3 has a receiving position and a unloading position. When the flipping and unloading device 3 is in the receiving position (see...),... Figure 1 or Figure 2 As shown), the fuel cell stack fixture 1, carrying the fuel cell stack 100 therein, can enter the flipping and unloading device 3 under the action of the transfer member 21, so that the first side of the fuel cell stack 100 is in contact with the sliding plate 321. When the flipping and unloading device 3 is in the unloading position (see...), Figure 4 As shown), the slide plate 321 is capable of delivering the fuel cell stack 100, which is located on it and inside the fuel cell stack fixture 1, to the outside of the fuel cell stack fixture 1. (See the aforementioned first side view.) Figure 1The state shown is that the side of the fuel cell stack 100 facing the flipping and feeding device 3. Specifically, this first side is formed by multiple connecting columns that connect the bottom plate and the top plate of the fuel cell stack 100.

[0051] In this technical solution, when the fuel cell stack fixture 1 and the fuel cell stack 100 inside it are fed into the flipping and unloading device 3, the bottom plate 11 of the fuel cell stack fixture 1 will be supported on the top surface of the first support part 31. At the same time, the sliding plate 321 will be attached to the first side of the fuel cell stack 100 to form an accurate positioning of the fuel cell stack 100 in the flipping and unloading device 3. When the flipping and unloading device 3 is in the unloading position, the fuel cell stack fixture 1 remains stationary because there is no attachment between it and the sliding plate 321. The sliding plate 321 will drive the fuel cell stack 100 on its support surface to move outward and be sent out, thereby realizing that the fuel cell stack 100 is automatically sent out from the fuel cell stack fixture 1 after flipping. At this time, the removed fuel cell stack 100 can be transferred to the target position by a forklift at the downstream position. The automated separation between the fuel cell stack 100 and the fuel cell stack fixture 1 is completed, and the automated and efficient unloading of the fuel cell stack 100 is realized.

[0052] It should be noted that, see Figure 1 As shown, in order to ensure that the first side of the fuel cell stack 100 can effectively fit with the slide plate 321, the arrangement area of ​​each positioning rod 12 on the first side should be outside the corresponding area of ​​the slide plate 321.

[0053] In some embodiments, the orientation of the flipping and unloading device 3 at the receiving position is taken as a reference; see details below. Figure 2 As shown, the slide plate 321 has a pull plate 3211 below its bearing surface. When the first side of the fuel cell stack 100 is in contact with the slide plate 321, the bottom end plate of the fuel cell stack 100 is above the pull plate 3211.

[0054] In this technical solution, by setting a pull plate 3211 below the slide plate 321, a forward thrust is generated on the bottom end plate of the fuel cell stack 100 when the slide plate 321 slides along the feeding direction, preventing slippage between the first side of the fuel cell stack 100 and the bearing surface of the slide plate 321. In a preferred embodiment, the free side of the pull plate 3211, that is, the side opposite to the side connected to the slide plate 321, has an inclined surface. Taking the orientation of the slide plate 321 when it is in a vertical state as a reference, this inclined surface is on the top surface of the pull plate 3211, and the thickness of the pull plate 3211 decreases as it approaches the slide plate 321, thus ensuring that the bottom end plate can smoothly align with the top surface of the pull plate 3211. In a specific embodiment, two pull plates 3211 are provided, and the two pull plates 3211 are horizontally spaced along the left and right sides of the slide plate 321.

[0055] See further Figure 2 As shown, in some embodiments, the second support portion 32 further includes a first fixed frame 323, and the slide plate 321 is slidably connected to the side of the first fixed frame 323 facing the first support portion 31. The first fixed frame 323 has two limiting components 325 spaced apart, and the two limiting components 325 are respectively located on the left and right sides of the slide plate 321. The limiting component 325 includes a first limiting strip 3251. When the flipping and unloading device 3 is in the receiving position, the first limiting strip 3251 is located on the top edge area of ​​the stacking plate 1111 of the electric stack fixture 1.

[0056] In this technical solution, the first limiting strip 3251 can position the stacked plate 1111 below it, preventing the fuel cell stack 100 from tilting during the process of being sent out with the slide plate 321. This would prevent the fastening springs and fasteners on the outer side of the bottom end plate of the fuel cell stack 100 from getting stuck or even jammed with the corresponding receiving holes and slots on the stacked plate 1111. This ensures that the fastening springs and fasteners can smoothly disengage from the receiving holes and separate from the stacked plate 1111, making the process of sending out the fuel cell stack 100 smoother.

[0057] In some embodiments, the limiting component 325 further includes a second limiting strip 3252. When the flipping and unloading device 3 is in the receiving position, the two second limiting strips 3252 are respectively attached to the left and right sides of the bottom end plate of the fuel cell stack 100, which can prevent the fuel cell stack 100 from shifting left and right during the flipping process and effectively eliminate the safety hazards of the fuel cell stack 100 during the flipping process.

[0058] As a preferred embodiment, the limiting component 325 further includes a stiffening rib plate 3253, wherein the first limiting strip 3251 and the second limiting strip 3252 are detachably connected (e.g., bolted) to the side of the stiffening rib plate 3253 facing the fuel cell stack 100, and the limiting component 325 is connected to the first fixing frame 323 via the stiffening rib plate 3253.

[0059] The stiffening rib plate 3253 can significantly improve the limiting strength of the first limiting strip 3251 and the second limiting strip 3252, and increase their service life. At the same time, the first limiting strip 3251 and the second limiting strip 3252 are detachably connected to the stiffening rib plate 3253, which can be quickly replaced if either one is damaged, reducing the maintenance cost of the device.

[0060] The first supporting part 31 includes a second fixed frame. The connection position between the first fixed frame 323 and the second fixed frame has a rotating shaft structure 324. The flipping and unloading device 3 is rotatably connected to the flipping bracket 34 through the rotating shaft structure 324.

[0061] In this technical solution, the first support part 31 and the second support part 32 are simultaneously connected to the flipping bracket 34 through the rotating shaft structure 324, which can improve the structural compactness of the device. In addition, it should be noted that the aforementioned first fixed frame 323 and second fixed frame are both frame structures, which can reduce the amount of material used and the weight of the device.

[0062] In some embodiments, the flipping and unloading device 3 further includes a first telescopic rod 331 and a second telescopic rod 332. The first telescopic rod 331 is connected between the first fixed frame 323 and the flipping bracket 34 to drive the flipping and unloading device 3 to flip and switch from the unloading position to the receiving position. The second telescopic rod 332 is connected between the second fixed frame and the transmission device 2 to drive the flipping and unloading device 3 to flip and switch from the receiving position to the unloading position. During the flipping and unloading device 3 flipping process, the first telescopic rod 331 and the second telescopic rod 332 act in opposite directions. The first telescopic rod 331 and the second telescopic rod 332 can both be cylinders or hydraulic cylinders, depending on the actual conditions of the application site.

[0063] In this technical solution, during the position switching process of the flipping and unloading device 3, the first telescopic rod 331 and the second telescopic rod 332 apply a pushing force to the corresponding component along the switching direction, while the other applies a pushing force to the corresponding component in the opposite direction to the switching direction. This can form a balance of the pushing forces on both sides, ensuring the smooth position switching of the flipping and unloading device 3 and preventing the occurrence of shaking during the flipping process.

[0064] In some embodiments, the flipping and unloading device 3 further includes an unloading drive component for driving the slide plate 321 to move a preset distance along the unloading direction. Specifically, the unloading drive component can be a cylinder. By setting the unloading drive component to drive the movement of the slide plate 321, the automation level of flipping and unloading can be improved. It is understood that the unloading drive component can also drive the slide plate 321 to move a preset distance in the opposite direction to the unloading direction.

[0065] To ensure smooth sliding of the slide plate 321, in a preferred embodiment, a slide rail assembly 326 is further provided between the slide plate 321 and the first fixed frame 323. Specifically, the slide rail assembly 326 includes a second slider 3261 and a second slide rail 3262, which are slidably connected and prevent detachment. At least two sets of the aforementioned slide rail assemblies 326 are provided, and the two sets of slide rail assemblies 326 are arranged in parallel and spaced apart between the slide plate 321 and the first fixed frame 323.

[0066] According to an embodiment of the present invention, a control method for the flow battery stack flipping and feeding device as described above is also provided, comprising the following steps:

[0067] Each positioning rod 12 in the fuel cell jig 1 on the transmission member 21 is slidably moved to the unloading yielding position and locked (specifically by locking member 133), and the flipping unloading device 3 is placed in the receiving position.

[0068] Control the transmission component 21 to move along the feeding direction to send the fuel cell jig 1 carrying the fuel cell 100 into the flipping feeding device 3 until the first side of the fuel cell jig 1 is in contact with the slide plate 321. Then control the transmission component 21 to stop moving. At this time, the bottom plate 11 of the fuel cell jig 1 is placed on the top surface of the second fixed frame of the first bearing part 31.

[0069] The first telescopic rod 331 and the second telescopic rod 332 are controlled to act simultaneously on the flipping and unloading device 3 so that the flipping and unloading device 3 flips 90° to switch to the unloading position. It is understood that at this time, the first telescopic rod 331 retracts during the flipping and unloading device 3, while the second telescopic rod 332 extends outward. At the same time, the retraction speed of the first telescopic rod 331 should be slightly less than the extension speed of the second telescopic rod 332. It should be ensured that the first telescopic rod 331 can also exert a force opposite to the flipping and unloading device 3 (specifically the first fixed frame 323) in the opposite direction of the flipping during the retraction process to ensure the stability of the flipping.

[0070] The unloading drive is controlled to drive the slide plate 321 to rotate along the unloading direction so that the electric stack 100 is sent outside the electric stack fixture 1, that is, the electric stack 100 and the electric stack fixture 1 are separated. At this time, the electric stack 100 can be transferred to the target position by external forklifts or other transfer tools. In this way, the automatic separation of the electric stack 100 and the electric stack fixture 1 and the automatic flipping of the electric stack 100 are realized.

[0071] A further measure is to control the flipping and unloading device 3 to rotate 90° in the opposite direction to switch to the receiving position. At this time, the fuel cell stack fixture 1 will follow the flipping and unloading device 3 to return to the initial state, that is, each positioning rod 12 is in a vertical state. Then, control the transmission component 21 to rotate in the opposite direction to send the fuel cell stack fixture 1 out of the flipping and unloading device 3, that is, the fuel cell stack fixture 1 is disconnected from the flipping and unloading device 3. At this time, the fuel cell stack fixture 1 returns to the fuel cell stacking position with the transmission component, and at this position, each positioning rod 12 slides from the unloading yielding position to the limiting position and locks it, so as to be put into the stacking and use of another fuel cell stack 100.

[0072] Several embodiments of the present invention have been described in detail above. However, it is obvious that those skilled in the art can make various modifications and variations to the embodiments of the present invention without departing from the spirit and scope of the invention. The scope of protection of the present invention is defined by the appended claims.

Claims

1. A flow battery stack flip-off device, characterized in that, include: The fuel cell stack fixture (1) includes a base plate (11) and a plurality of positioning rods (12). A fuel cell stack support assembly (111) is formed in the central area of ​​the base plate (11). Each positioning rod (12) is spaced around the fuel cell stack support assembly (111) to limit the outer periphery of the stacked fuel cell stack (100). Each positioning rod (12) has a limiting position that contacts the outer periphery of the fuel cell stack (100) and a discharge clearance position that disengages from the outer periphery of the fuel cell stack (100). Each positioning rod (12) switches between the limiting position and the discharge clearance position in a sliding manner. The transmission device (2) includes a transmission component (21) for carrying and driving the fuel cell jig (1) to move along the feeding direction; The flipping and unloading device (3) is located downstream of the conveyor (21) in the unloading direction. It is used to flip the fuel cell jig (1) and fuel cell stack (100) fed into the conveyor (21) by 90°, and to send the fuel cell stack (100) after flipping by 90° out of the fuel cell jig (1) and out of the fuel cell jig (1). When the fuel cell jig (1) is fed into the flipping and unloading device (3), each of the positioning rods (12) is switched to the unloading yielding position. The flipping and unloading device (3) includes a first support part (31) and a second support part (32) arranged at right angles. The second support part (32) includes a sliding plate (321). The flipping and unloading device (3) has a receiving position and a unloading position. When the fuel cell jig (1) and the fuel cell stack (100) inside it are fed into the flipping and unloading device (3), the bottom plate (11) of the fuel cell jig (1) will be supported on the top surface of the first support part (31), and at the same time, the sliding plate (321) will be supported on the top surface of the first support part (31). The plate (321) is attached to the first side of the fuel cell stack (100) to form an accurate positioning of the fuel cell stack (100) in the flipping and unloading device (3); when the flipping and unloading device (3) is in the unloading position, the fuel cell stack fixture (1) and the sliding plate (321) are not attached and remain stationary. The sliding plate (321) will drive the fuel cell stack (100) on its bearing surface to move outward and send it out, so that the fuel cell stack (100) is automatically sent out from the fuel cell stack fixture (1) after flipping.

2. The flow battery stack flipping and unloading device according to claim 1, characterized in that, Each of the positioning rods (12) is connected to the base plate (11) via a sliding positioning assembly. The sliding positioning assembly includes a first slider (131), a first slide rail (132), and a locking member (133). One of the first slider (131) and the first slide rail (132) is connected to the bottom end of the positioning rod (12), and the other is connected to the top surface of the base plate (11). The locking member (133) can lock the relative position of the first slider (131) and the first slide rail (132).

3. The flow battery stack flipping and unloading device according to claim 1, characterized in that, With the position of the turnover discharging device (3) in the receiving position as a reference, the slide plate (321) has a pull plate (3211) below the bearing surface, and when the first side of the stack (100) is attached to the slide plate (321), the bottom end plate of the stack (100) is above the pull plate (3211).

4. The liquid flow battery stack turnover discharging device according to claim 3, characterized in that, The second bearing part (32) further comprises a first fixed frame (323), and the slide plate (321) is slidingly connected to one side of the first fixed frame (323) facing the first bearing part (31), and the first fixed frame (323) has two limiting assemblies (325) arranged at intervals thereon, and the two limiting assemblies (325) are respectively arranged on the left and right sides of the slide plate (321), and the limiting assembly (325) comprises a first limiting strip (3251), and when the turnover discharging device (3) is in the receiving position, the first limiting strip (3251) is on the top surface edge area of the stacking plate (1111) of the stack jig (1).

5. The liquid flow battery stack turnover discharging device according to claim 4, characterized in that, The limiting assembly (325) further comprises a second limiting strip (3252), and when the turnover discharging device (3) is in the receiving position, the two second limiting strips (3252) are respectively attached to the left and right sides of the bottom end plate of the stack (100).

6. The liquid flow battery stack turnover discharging device according to claim 5, characterized in that, The limiting assembly (325) further comprises a rigidity reinforcing rib plate (3253), and the first limiting strip (3251) and the second limiting strip (3252) are detachably connected to one side of the rigidity reinforcing rib plate (3253) facing the stack (100), and the limiting assembly (325) is connected with the first fixed frame (323) via the rigidity reinforcing rib plate (3253); and / or, The first bearing part (31) comprises a second fixed frame, and the first fixed frame (323) and the second fixed frame have a rotating shaft structure (324) at the connection position, and the turnover discharging device (3) is rotatably connected to a turnover support (34) via the rotating shaft structure (324).

7. The liquid flow battery stack turnover discharging device according to claim 6, characterized in that, The turnover discharging device (3) further comprises a first telescopic rod (331) and a second telescopic rod (332), wherein the first telescopic rod (331) is connected between the first fixed frame (323) and the turnover support (34) to drive the turnover discharging device (3) to switch from the discharging position to the receiving position, the second telescopic rod (332) is connected between the second fixed frame and the conveying device (2) to drive the turnover discharging device (3) to switch from the receiving position to the discharging position, and the directions of action of the first telescopic rod (331) and the second telescopic rod (332) are opposite during the turnover of the turnover discharging device (3).

8. The turnover discharging device of the flow battery stack according to claim 4, characterized in that, The turnover discharging device (3) further comprises a discharging driving member for driving the sliding plate (321) to move a preset distance along the discharging direction, and / or a slide rail assembly (326) is further arranged between the sliding plate (321) and the first fixed frame (323).

9. A control method of the flow battery stack turnover blanking device according to any one of claims 1 to 8, characterized by, The method comprises the following steps: Sliding and moving each positioning rod (12) in the stack fixture (1) on the conveying member (21) to a discharging yielding position and locking, and placing the turnover discharging device (3) in a receiving position; Controlling the conveying member (21) to operate in a discharging direction to carry the stack (100) in the stack fixture (1) into the turnover discharging device (3) until the first side of the stack fixture (1) is attached to the sliding plate (321), and then controlling the conveying member (21) to stop operating; Controlling the turnover discharging device (3) to turn over 90° to switch to a discharging position; Controlling the sliding plate (321) to operate in the discharging direction to send the stack (100) out of the stack fixture (1).

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