Electric pile and electric pile support

Abstract

The galvanic pile comprises two end plates and a galvanic pile main body between the end plates, and further comprises a pair of supporting mechanisms at the bottom of the galvanic pile, the bottom of the end plate is provided with an avoiding groove enabling the supporting mechanism to be in contact with the electric pile main body, the supporting mechanism comprises a cross rod embedded in the avoiding groove and a pair of supporting rods used for supporting the cross rod, and the supporting rods are embedded in the avoiding groove and abut against the electric pile main body. The electric pile can be supported and assembled at the same time, and has the dual advantages of preventing the electric pile from sinking and being convenient to install.

Description

Technical Field

[0001] The present application relates to the technical field of all-vanadium liquid flow battery stacks, and in particular to a stack and a stack support. Background Art

[0002] All-vanadium liquid flow battery is a new type of high-efficiency electric energy conversion and storage device. Since its battery output power and energy storage capacity are independent of each other, it can be used as a large-scale energy storage device in the process of renewable energy generation such as wind power and solar power and grid peak regulation.

[0003] The battery stack in the all-vanadium liquid flow battery is a core component. The invention patent with patent number CN118173814A discloses a liquid flow battery and a battery stack, which includes two bipolar plate electrode frame integrated components A separated by a diaphragm. The bipolar plate electrode frame integrated component A includes a bipolar plate and an electrode frame with a central through hole for placing an electrode. The bipolar plate is placed in the central through hole of the electrode frame, close to an open end of the through hole. The axis of the central through hole is perpendicular to the surface of the bipolar plate. The edges of the bipolar plate are sealed and fixed to the inner wall of the through hole by laser welding. The open end of the through hole is sealed by the bipolar plate. It is characterized in that: the edge of the bipolar plate extends or is provided with at least one pole ear in a direction away from the bipolar plate and parallel to the surface of the bipolar plate, and a through hole C or a groove is opened between the central through hole of the electrode frame and the outer peripheral edges of the electrode frame. The pole ear extends through this through hole C or the groove to the outside of the electrode frame.

[0004] Regarding the above-mentioned related technologies, a series of spare parts such as multiple electrodes and bipolar plates are usually arranged between the two end plates, and a large amount of electrolyte passes through, so the mass of the fuel cell stack is relatively large, usually more than one ton. Positioning rods are provided in the fuel cell stack for positioning the above-mentioned components. Due to the effect of gravity, the area between the two end plates, especially the middle part of the fuel cell stack, will sink, and the positioning rods will also bend accordingly. Utility Model Content

[0005] In order to prevent the battery stack from sinking, the present application provides a battery stack and a battery stack support adopting the following technical solutions:

[0006] A battery stack and a battery stack support, including two end plates and a battery stack body between the end plates, characterized in that: it also includes a pair of support mechanisms at the bottom of the battery stack; an avoidance groove is opened at the bottom of the end plate to enable the support mechanism to contact the battery stack body, the support mechanism includes a cross bar embedded in the avoidance groove, and a pair of support rods for supporting the cross bar, the support rods are embedded in the avoidance groove and pressed against the battery stack body.

[0007] By adopting the above technical solution: the cross bar is embedded in the avoidance groove to support the battery stack body, which can effectively prevent the battery stack from sinking.

[0008] Preferably, the support mechanism further includes a support disk installed at one end of the support rod away from the fuel cell stack.

[0009] By adopting the above technical solution: the support disk has a large contact area, improving the stability of the fuel cell stack placement.

[0010] Preferably, it further includes a lifting mechanism installed on the cross bar for lifting the cross bar; the support mechanism further includes universal wheels installed at one end of the support disk away from the fuel cell stack, and the universal wheels are detachably connected to the support disk; it further includes two guide rails for the universal wheels to slide, and the guide rails are provided with guide grooves for embedding the universal wheels.

[0011] By adopting the above technical solution: during operation, place the fuel cell stack on the two support mechanisms, and rely on the friction between the fuel cell stack and the cross bar to drive the universal wheels to roll onto the guide rails, place the fuel cell stack at the assembly position, after the fuel cell stack enters the specified position, start the lifting mechanism to lift the cross bar and the entire fuel cell stack, remove the wheels, and then lower the cross bar through the lifting mechanism to complete the assembly of the fuel cell stack.

[0012] Preferably, a clamping groove is provided at one end of the cross bar close to the guide rail, and the lifting mechanism includes a connecting rod embedded in the clamping groove and two threaded rods screwed at both ends of the connecting rod in the length direction.

[0013] By adopting the above technical solution: the disassembly of the lifting mechanism can be realized, and it only needs to be installed when needed.

[0014] Preferably, the connecting rod and the clamping groove are in interference fit.

[0015] By adopting the above technical solution: the interference fit can effectively prevent the cross bar from falling off.

[0016] Preferably, positioning holes for positioning are provided on the guide rails, and the threaded rods are embedded in the positioning holes.

[0017] By adopting the above technical solution: accurate positioning of the fuel cell stack can be achieved.

[0018] Preferably, one end of the guide rail is connected with an inclined part to facilitate the universal wheels to enter the guide rail.

[0019] By adopting the above technical solution: since the fuel cell stack is heavy and not easy to enter the guide rail, setting the inclined part can reduce the resistance for the fuel cell stack to enter the guide rail.

[0020] Preferably, the support rod is provided with threads, and the cross bar is provided with corresponding threaded holes, and the support rod is screwed into the threaded holes through the threads.

[0021] By adopting the above technical solution: when there is no lifting mechanism, the lifting rod can drive the cross bar to move up and down.

[0022] Preferably, two universal wheels are arranged on the support plate, the support plate is a disc, and both universal wheels are located on the straight line where the diameter of the support plate is located.

[0023] By adopting the above technical solution: when the cross bar passes through the center of the support plate, the universal wheel cannot be placed at the center position. In order to increase the stability of the movement of the whole device, two symmetrically arranged universal wheels are installed.

[0024] Preferably, circular handles for facilitating the application of force are fixedly installed at the upper ends of the support rod and the threaded rod.

[0025] By adopting the above technical solution: it is convenient for the operator to apply force and convenient to hold.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The device can simultaneously meet the support of the fuel cell stack and the assembly of the fuel cell stack, and has the dual advantages of preventing the fuel cell stack from sinking and facilitating the installation of the fuel cell stack;

[0028] 2. Universal wheels for reducing friction are provided, and the installation of the fuel cell stack can be completed more labor-savingly;

[0029] 3. The universal wheels are detachably arranged, and finally the support plate contacts the guide rail. The support plate has a large contact area and strong stability. Description of the Drawings

[0030] Figure 1 is the overall structural schematic diagram of the embodiment of the present application.

[0031] Figure 2 is the assembly schematic diagram of the embodiment of the present application.

[0032] Figure 3 is the partial structural schematic diagram of the embodiment of the present application.

[0033] Figure 4 is Figure 3 the partial enlarged view of part A in

[0034] Figure 5 is the partial structural schematic diagram of the embodiment of the present application.

[0035] Description of the reference numerals: 1, end plate; 11, avoidance groove; 2, fuel cell stack body; 3, support mechanism; 31, cross bar; 311, card slot; 32, support rod; 33, support plate; 331, mounting hole; 34, universal wheel; 341, connecting plate; 35, guide rail; 351, guide groove; 352, positioning hole; 353, inclined part; 4, lifting mechanism; 41, connecting rod; 42, threaded rod; 5, circular handle. Detailed Description of the Invention

[0036] The following is combined with the attachedFigures 1-5 Further detailed description of the present application is provided.

[0037] An embodiment of the present application discloses a stack and a stack bracket. Refer to Figure 1 , a stack and a stack bracket include a stack, and a pair of support mechanisms 3 placed below the stack.

[0038] Refer to Figure 2 , the stack includes two rectangular end plates 1, a stack body 2 located between the two end plates 1. Each lower end of the end plate 1 is provided with two relief grooves 11. The two relief grooves 11 are symmetric about the midline of the end plate 1, and the relief grooves 11 are trapezoidal.

[0039] Refer to Figure 2 , Figure 3 , the support mechanism 3 includes a cross bar 31. The cross section of the cross bar 31 is trapezoidal. The cross bar 31 is embedded in the relief grooves 11 of the two end plates 1, and the upper surface of the cross bar 31 can contact the stack body 2. Two threaded holes penetrating through the cross bar 31 are provided at both ends of the cross bar 31 in the length direction. The axial direction of the threaded holes is perpendicular to the length direction of the cross bar 31. A support rod 32 is screwed in the threaded holes. The support rod 32 is screwed to the threaded holes through external threads. A circular handle 5 for applying force is fixedly installed at the upper end of the support rod 32. The center of the circular handle 5 coincides with the center of the support rod 32.

[0040] Refer to Figure 4 , Figure 5 , a support disk 33 is screwed below the support rod 32. The support disk 33 is a disk. The center of the disk coincides with the center of the support rod 32. Two universal wheels 34 are installed below the support disk 33. The universal wheels 34 include rollers and connecting plates 341. Both universal wheels 34 are located on the straight line where the diameter of the support disk 33 is located and below the support disk 33. An installation hole 331 for installing the universal wheels 34 is provided on the support disk 33. The connecting plate 341 and the support disk 33 are fixed by bolts and nuts. The nut abuts against the upper surface of the support disk 33, which is convenient for installation and disassembly.

[0041] Refer to Figure 2 , Figure 3 , the support mechanism 3 further includes two parallel guide rails 35 placed on the ground. The guide rails 35 are parallel to the cross bar 31. A guide groove 351 for embedding the universal wheels 34 is provided on the upper surface of the guide rails 35. The guide groove 351 is parallel to the length direction of the cross bar 31. The guide rails 35 are in the shape of a cuboid. An inclined portion 353 is fixedly connected to one side of the guide rails 35. The cross section of the inclined portion 353 is a right triangle. The guide groove 351 extends to the inclined surface of the inclined portion 353, which is convenient for the universal wheels 34 to enter the guide rails 35.

[0042] Refer to Figure 3 , Figure 4, further including a lifting mechanism 4 installed on the cross bar 31, the lifting mechanism 4 being used to lift the cross bar 31; two card slots 311 are opened at one end of the cross bar 31 close to the guide rail 35, the two card slots 311 are distributed at both ends in the length direction of the cross bar 31, and the extending direction of the card slot 311 is perpendicular to the extending direction of the guide rail 35. The lifting mechanism 4 includes a connecting rod 41 embedded in the card slot 311 and two threaded rods 42 screwed to both ends in the length direction of the connecting rod 41. The connecting rod 41 and the card slot 311 are in interference fit. The two threaded rods 42 are symmetric about the midline of the connecting rod 41, and a circular handle 5 is installed at the upper end of the threaded rod 42.

[0043] Reference Figure 2 、 Figure 3 , four positioning holes 352 for inserting the four threaded rods 42 are installed on the guide rail 35, and there is a clearance fit between the positioning holes 352 and the threaded rods 42.

[0044] The implementation principle of an embodiment of a stack and a stack bracket in this application is as follows:

[0045] 1. Place the stack on the two support mechanisms 3, and embed the cross bar 31 into the corresponding avoidance groove 11.

[0046] 2. Use manpower or other external forces to push the stack to move, and the universal wheels 34 enter the guide rail 35 from the inclined part 353 along the guide groove 351.

[0047] 3. Take out the lifting mechanism 4, embed the connecting rod 41 into the card slot 311, align the threaded rod 42 with the positioning hole 352, and rotate the circular handle 5 until the threaded rod 42 is completely embedded into the positioning hole 352 until the cross bar 31 and the stack are lifted.

[0048] 4. Screw the nut to remove the universal wheels 34. At this time, reverse-rotate the circular handle 5 to drive the threaded rod 42 to rotate until the support disk 33 touches the guide rail 35, and then remove the connecting rod 41.

[0049] The above are all preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A battery stack and a battery stack support, comprising two end plates (1) and a battery stack body (2) between the end plates (1), characterized in that: It also includes a pair of support mechanisms (3) at the bottom of the battery stack; a relief groove (11) is provided at the bottom of the end plate (1) so that the support mechanism (3) can contact the battery stack body (2); the support mechanism (3) includes a cross bar (31) embedded in the relief groove (11), and a pair of support rods (32) for supporting the cross bar (31); the support rods (32) are embedded in the relief groove (11) and pressed against the battery stack body (2).

2. The battery stack and battery stack support according to claim 1, characterized in that: The support mechanism (3) also includes a support plate (33) mounted on an end of the support rod (32) away from the fuel cell stack.

3. The battery stack and battery stack support according to claim 2, characterized in that: The invention also includes a lifting mechanism (4) installed on the cross bar (31) for lifting the cross bar (31); the support mechanism (3) also includes a universal wheel (34) installed on an end of the support plate (33) away from the battery stack, and the universal wheel (34) is detachably connected to the support plate (33); and also includes two guide rails (35) for the universal wheel (34) to slide, and the guide rails (35) are provided with guide grooves (351) for embedding the universal wheel (34).

4. The battery stack and battery stack support according to claim 3, characterized in that: The cross bar (31) is provided with a slot (311) at one end close to the guide rail (35), and the lifting mechanism (4) comprises a connecting rod (41) embedded in the slot (311) and two threaded rods (42) screwed to both ends of the connecting rod (41) in the length direction.

5. The battery stack and the battery stack support according to claim 4, characterized in that: The connecting rod (41) and the clamping groove (311) are in interference fit.

6. The battery stack and the battery stack support according to claim 5, characterized in that: The guide rail (35) is provided with a positioning hole (352) for positioning, and the threaded rod (42) is embedded in the positioning hole (352).

7. The battery stack and battery stack support according to claim 6, characterized in that: One end of the guide rail (35) is connected to an inclined portion (353) that facilitates the universal wheel (34) to enter the guide rail (35).

8. The battery stack and the battery stack support according to claim 7, characterized in that: The support rod (32) is provided with a thread, the cross rod (31) is provided with a corresponding threaded hole, and the support rod (32) is screwed into the threaded hole via the thread.

9. The battery stack and battery stack support according to claim 8, characterized in that: Two universal wheels (34) are arranged on the support disc (33); the support disc (33) is a circular disc; the two universal wheels (34) are both located on a straight line where the diameter of the support disc (33) is located.

10. The battery stack and battery stack support according to claim 9, characterized in that: A circular handle (5) for applying force is fixedly mounted on the upper ends of the support rod (32) and the threaded rod (42).

Images