Nickel-hydrogen battery liquid suction device

Abstract

The utility model relates to the technical field of battery cell liquid absorption, in particular to a nickel-hydrogen battery liquid absorption device, which comprises a battery cell fixing frame, a battery cell liquid absorption device and a liquid absorption device, the swing bearing seat is rotationally connected with the middle part of the battery cell fixing frame, so that the two ends of the battery cell fixing frame can rotate freely; and the swing driving assembly is connected with the battery cell fixing frame and is used for driving the battery cell fixing frame to do reciprocating swing action at a set frequency. According to the utility model, the battery cell fixing frame is rotationally connected through the swinging bearing seat, and the reciprocating swinging action of the battery cell fixing frame is realized through the swinging driving assembly, so that compared with the standing liquid absorption in the prior art, along with the swinging of the limiting fixing frame and the rolling of electrolyte in the battery cell, the liquid absorption time of the battery cell can be shortened; and meanwhile, the uniformity of the electrolyte in the battery cell is also improved.

Description

Technical Field

[0001] This utility model relates to the field of battery cell liquid absorption technology, and in particular to a liquid absorption device for nickel-metal hydride batteries. Background Technology

[0002] Nickel-metal hydride (NiMH) batteries are a type of metal-based battery system that uses water as the electrolyte. These batteries are characterized by the use of an aqueous electrolyte, and the negative electrode material is typically a metallic element. Due to their advantages such as environmental friendliness, low cost, and safe operation, NiMH batteries have received increasing attention in the field of energy storage in recent years.

[0003] In existing technologies, the electrolyte injection process is a crucial step in battery cell assembly. This step mainly involves injecting the battery's electrolyte into the battery cell to ensure normal battery operation and improve its performance. To ensure sufficient electrolyte absorption by the electrodes, existing technologies, after injecting the electrolyte into the cell, place the battery in a temperature-controlled environment and heat it to accelerate liquid penetration and absorption.

[0004] However, the above-mentioned high-temperature static liquid absorption method not only prolongs the manufacturing cycle, but also may cause "dry areas" inside large-volume cells, thus affecting the distribution of electrolyte. Utility Model Content

[0005] In view of at least one of the above technical problems, the present invention provides a nickel-metal hydride battery liquid absorption device, which adopts structural improvements to improve the efficiency of cell liquid absorption and the uniformity of electrolyte distribution.

[0006] According to a first aspect of the present invention, a liquid absorption device for a nickel-metal hydride battery is provided, comprising:

[0007] A cell mounting bracket is used to secure the battery cells.

[0008] The swing support is rotatably connected to the middle of the battery cell fixing frame, so that both ends of the battery cell fixing frame can rotate freely;

[0009] A swing drive assembly is connected to the cell mounting bracket and is used to drive the cell mounting bracket to perform a reciprocating swing motion at a set frequency.

[0010] In some embodiments of this utility model, the battery cell fixing frame includes a base plate, a card holder respectively disposed at both ends of the base plate and perpendicular to the surface of the base plate, and a first buckle assembly. The card holder has a U-shaped groove adapted to the end of the battery cell, and the first card holder is used to hold the other end of the battery cell.

[0011] In some embodiments of this utility model, the base plate also has a baffle strip, which is arranged parallel between the card seat and the first buckle assembly, and the two baffle strips are placed symmetrically inclined towards each other.

[0012] In some embodiments of this utility model, the inclined surfaces of the two baffles are further provided with a plurality of rollers, which are evenly distributed along the length direction of the baffles.

[0013] In some embodiments of this utility model, the base plate also has a plurality of second snap-fit ​​components for fixing the battery cell body between the card holder and the first snap-fit ​​component.

[0014] In some embodiments of this utility model, a support frame is also included, the swing support seat is fixed on the support frame, and the battery cell fixing frame also has a swing leg that is perpendicular to the middle of the base plate. The upper middle part of the swing leg is rotatably connected to the swing support seat, and the bottom of the swing leg is located between the two swing supports.

[0015] In some embodiments of this utility model, the swing drive assembly includes a drive member fixed to the support frame and disposed toward the two swing support seats, the drive member being rotatably connected to the bottom of the swing leg.

[0016] In some embodiments of this utility model, the swing drive assembly further includes a slide rail fixed on the support frame, a slider slidably connected to the slide rail, and a drive shaft fixed on the slider. The drive component is connected to the drive shaft, and the swing leg has a vertically arranged slotted hole. Both ends of the drive shaft extend into the slotted hole.

[0017] In some embodiments of this utility model, a buffer mechanism is also included, which is fixed on the support frame and located within the projection area of ​​the battery cell fixing frame on the support frame;

[0018] The buffer mechanism includes a first support and a pad disposed at the top of the first support. The buffer mechanism also includes at least one buffer cylinder with its drive end higher than the pad.

[0019] In some embodiments of this utility model, a temporary support mechanism is also included, which is centrally and symmetrically arranged on both sides of the cell fixing frame. The temporary support mechanism is used to support the cell fixing frame before it swings.

[0020] The temporary support mechanism includes a second bracket, the height of which is lower than the distance between the cell fixing frame and the support frame. The second bracket has a top block extending toward the cell fixing frame. The top block is detachably fixed to the second bracket. When the top block is fixed toward the cell fixing frame, the height from the top of the top block to the support frame is the same as the height between the cell fixing frame and the support frame.

[0021] The beneficial effects of this utility model are as follows: This utility model uses a swing support to rotatably connect the battery cell fixing frame, and uses a swing drive component to realize the reciprocating swing action of the battery cell fixing frame. Compared with the static liquid absorption in the prior art, as the fixing frame swings, the electrolyte tumbles in the battery cell, which not only reduces the liquid absorption time of the battery cell, but also improves the uniformity of the electrolyte in the battery cell. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the nickel-metal hydride battery liquid absorption device in an embodiment of this utility model;

[0024] Figure 2 This is a schematic diagram of the battery cell fixing frame in an embodiment of the present invention;

[0025] Figure 3 As an embodiment of this utility model Figure 2 A magnified structural diagram of the layout at point A in the diagram;

[0026] Figure 4 This is an exploded disassembly diagram of the cell fixing frame and support frame in an embodiment of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the swing drive assembly in an embodiment of this utility model;

[0028] Figure 6 As an embodiment of this utility model Figure 4 A magnified schematic diagram of the structure at point B in the diagram;

[0029] Figure 7 This is a schematic diagram of the buffer mechanism in an embodiment of the present invention;

[0030] Figure 8 This is a schematic diagram of the temporary support mechanism in an embodiment of the present invention.

[0031] Explanation of reference numerals in the attached drawings: 1. Cell fixing frame; 11. Base plate; 12. Card holder; 12a. U-shaped groove; 13. First snap-fit ​​assembly; 14. Stop bar; 14a. Roller; 15. Second snap-fit ​​assembly; 16. Swinging support leg; 16a. Slotted hole; 2. Swinging support seat; 3. Swinging drive assembly; 31. Drive component; 32. Slide rail; 33. Slider; 34. Drive shaft; 4. Support frame; 5. Buffer mechanism; 51. First bracket; 52. Pad; 53. Buffer cylinder; 6. Temporary support mechanism; 61. Second bracket; 62. Top block. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] like Figures 1 to 8 The nickel-metal hydride battery liquid absorption device shown includes a cell fixing frame 1, a swing receiving base 2, and a swing drive assembly 3, as detailed below. Figure 1 As shown, the cell holder 1 is used to fix the cell; it should be noted that there are various structural forms for fixing the cell, such as... Figure 1The structure shown can also be other structures commonly used by those skilled in the art; the swing support 2 is rotatably connected to the middle of the cell fixing frame 1, allowing both ends of the cell fixing frame 1 to rotate freely; through the rotatable connection at the middle, the cell fixing frame 1 can move up and down at both ends like a seesaw, thereby shaking the electrolyte inside the cell; of course, it should also be noted that there are various structural forms for rotatably connecting with the cell fixing frame 1, for example, it can be a rotatable connection through a bearing and a shaft on the cell fixing frame 1, or those skilled in the art can use other conventional structural forms. The swing drive assembly 3 is connected to the cell fixing frame 1 and is used to drive the cell fixing frame 1 to perform reciprocating swinging motion at a set frequency. It should be noted that there are various structural forms for driving the cell fixing frame 1 to reciprocate swing, for example, it can be a direct drive of the rotatable connection by a motor, or other drive structures can be used to apply force to both ends of the cell fixing frame 1 to achieve the reciprocating swinging motion of the cell fixing frame 1.

[0036] In the above embodiment, the cell fixing frame 1 is rotatably connected by the swing receiving seat 2, and the reciprocating swing action of the cell fixing frame 1 is realized by the swing driving component 3. Compared with the static liquid absorption in the prior art, as the fixing frame swings, the electrolyte rolls in the cell, which can not only reduce the liquid absorption time of the cell, but also improve the uniformity of the electrolyte in the cell.

[0037] Optionally, in some embodiments of this utility model, the specific structure of the battery cell fixing frame 1 is as follows: Figure 2 As shown, the battery cell fixing frame 1 includes a base plate 11, a card holder 12 respectively disposed at both ends of the base plate 11 and perpendicular to the surface of the base plate 11, and a first buckle assembly 13. The card holder 12 has a U-shaped groove 12a adapted to the end of the battery cell, and the first card holder 12 is used to hold the other end of the battery cell. In the embodiment of this utility model, the U-shaped groove 12a is used to support one end of the battery cell body. The size of the U-shaped groove 12a is such that it only allows the end of the body to be clamped. Similarly, the other end of the body can be fixed by the first buckle assembly 13. The card holder 12 and the first buckle assembly 13 can prevent the battery cell itself from shaking when the battery cell fixing frame 1 swings left and right, thereby improving the reliability of fixing the battery cell.

[0038] In some embodiments of this utility model, please continue to refer to Figure 2 The base plate 11 also has baffles 14, which are arranged parallel to each other between the card holder 12 and the first buckle assembly 13. The two baffles 14 are symmetrically inclined towards each other. By setting the baffles 14, the two parallel baffles 14, and their opposite faces being inclined, the bottle body can be locked between the two baffles 14, thereby preventing the bottle body from rolling laterally and improving the fixing effect.

[0039] Optionally, such as Figure 3 As shown, to improve the ease of installation of the battery cell, multiple rollers 14a are provided on the inclined surfaces of the two baffles 14, and the rollers 14a are evenly distributed along the length of the baffles 14. With the rollers 14a, when placing the battery, one end of the battery can be placed between the two baffles 14 first, and then the battery can be pushed towards the U-shaped groove 12a. The rollers 14a reduce the friction during battery movement, thus reducing the difficulty of fixing the battery.

[0040] Please continue to refer to Figure 2 To further improve the reliability of fixing the battery cell body, the base plate 11 also has multiple second snap-fit ​​components 15 for fixing the battery cell body between the card holder 12 and the first snap-fit ​​component 13. It should be noted that the first snap-fit ​​component 13 and the second snap-fit ​​component 15 can take various forms. In some embodiments of this utility model, both the first snap-fit ​​component 13 and the second snap-fit ​​component 15 can be configured with a vertical bar on both sides in the width direction of the bottle body, and then a horizontal bar with one end rotatably connected to the top of one of the vertical bars. After the horizontal bar flips and presses against the bottle body, the other end is fixed to the other vertical bar. Through this pressing structure, the bottle body is fixed in both the vertical and horizontal directions. Furthermore, through the setting of the baffle 14, the card holder 12, and the first snap-fit ​​component 13, the bottle body is well fixed in the front-back, left-right, and vertical directions, and this structure also facilitates the installation and removal of the bottle body.

[0041] like Figure 1 and Figure 4 As shown in the embodiment of this utility model, it also includes a support frame 4, with the swing support seat 2 fixed on the support frame 4. The battery cell fixing frame 1 also has a swing leg 16 arranged perpendicularly to the middle of the base plate 11. The upper middle part of the swing leg 16 is rotatably connected to the swing support seat 2, and the bottom of the swing leg 16 is located between the two swing supports 2. With this structural design, the entire battery cell fixing frame 1 can be moved up and down alternately at both ends simply by pushing the swing leg 16 back and forth.

[0042] In some embodiments of this utility model, such as Figure 4 As shown, the swing drive assembly 3 includes a drive member 31 fixed to the support frame 4 and positioned towards the two swing support seats 2. The drive member 31 is rotatably connected to the bottom of the swing legs 16. It should be noted that the rotatable connection can take many forms; for example, it can be achieved through a rotating shaft. In this case, the other end of the drive member 31 can also be rotatably connected to the support seat. The drive member 31 can be a linear drive structure such as a pneumatic cylinder or a hydraulic cylinder.

[0043] Optionally, such as Figure 5 and Figure 6 As shown, the swing drive assembly 3 also includes a slide rail 32 fixed on the support frame 4, a slider 33 slidably connected to the slide rail 32, and a drive shaft 34 fixed on the slider 33. The drive member 31 is connected to the drive shaft 34. The swing leg 16 has a vertically arranged slotted hole 16a, and both ends of the drive shaft 34 extend into the slotted hole 16a. The slide rail 32 and slider 33 improve the rigidity of the drive. The movement of the drive shaft 34 within the slotted hole 16a absorbs the excess force caused by the swing of the swing leg 16, thereby achieving the reciprocating swing motion of the swing leg 16 under the drive condition of the drive member 31 reciprocating in the horizontal direction.

[0044] Please continue to refer to Figure 4 and Figure 7 To further improve stability during oscillation, a buffer mechanism 5 is also included. The buffer mechanism 5 is fixed to the support frame 4 and located within the projection area of ​​the cell fixing frame 1 on the support frame 4. The buffer mechanism 5 includes a first bracket 51 and a pad 52 disposed at the top of the first bracket 51. The buffer mechanism 5 also includes at least one buffer cylinder 53 with its driving end higher than the pad 52. In embodiments of this utility model, such as Figure 7 As shown, the top of the buffer cylinder 53 has a rubber plug. During the descent of the battery cell fixing frame 1, the buffer cylinder 53 first contacts the rubber plug on top and then contacts the pad block 52. Through this structural design, the acceleration of the battery cell fixing frame 1 during descent can be reduced, thereby reducing the pulling force of the drive shaft 34 on the swing leg 16 when changing direction and improving the service life of the device.

[0045] Please continue to refer to Figure 1 and Figure 8 In this embodiment of the utility model, to improve the reliability of the detachable installation of the battery cell body, a temporary support mechanism 6 is also included. The temporary support mechanism 6 is symmetrically arranged on both sides of the battery cell fixing frame 1. The temporary support mechanism 6 is used to support the battery cell fixing frame 1 before it swings. The temporary support mechanism 6 includes a second bracket 61. The height of the second bracket 61 is lower than the distance between the battery cell fixing frame 1 and the support frame 4. The second bracket 61 has a top block 62 extending towards the battery cell fixing frame 1. The top block 62 is detachably fixed to the second bracket 61. When the top block 62 is fixed towards the battery cell fixing frame 1, the height from the top of the top block 62 to the support frame 4 is the same as the height between the battery cell fixing frame 1 and the support frame 4. It should be noted that the top block 62 can have various structural forms. For example, it can be temporarily fixed with bolts, or it can be... Figure 8The rotating connection shown allows the top block 62 to be rotated upwards and fixed by bolts to the rotating shaft of the top block 62 when it is needed to work. With this configuration, the two top blocks 62 respectively press against the two ends of the battery cell fixing frame 1, keeping the battery cell fixing frame 1 in a horizontal state, thereby enabling the installation or removal of the battery cell body.

[0046] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A liquid absorption device for a nickel-metal hydride battery, characterized in that, The utility model relates to a battery cell fixing frame, a swing receiving seat is rotatably connected to the middle part of the battery cell fixing frame, so that the two ends of the battery cell fixing frame can rotate freely, and a swing driving assembly is connected to the battery cell fixing frame and used for driving the battery cell fixing frame to make reciprocating swing motion at a set frequency. The battery cell fixing frame comprises a bottom plate, a clamping seat and a first buckle assembly which are respectively arranged at the two ends of the bottom plate and are arranged perpendicularly to the surface of the bottom plate, the clamping seat is provided with a U-shaped groove which is matched with the end part of the battery cell, and the clamping seat is used for clamping the other end of the battery cell. The bottom plate is also provided with a blocking strip which is arranged in parallel between the clamping seat and the first buckle assembly, and the two blocking strips are symmetrically arranged in an inclined manner towards each other. A plurality of rollers are arranged on the inclined surfaces of the two blocking strips and are uniformly distributed along the length direction of the blocking strips.

2. The nickel-hydrogen battery liquid absorbing device according to claim 1, wherein The bottom plate is also provided with a plurality of second buckle assemblies which are used for fixing the body of the battery cell and are arranged between the clamping seat and the first buckle assembly.

3. The nickel-hydrogen battery liquid absorbing device according to claim 2, wherein The swing receiving seat is fixed to a support frame, the battery cell fixing frame is also provided with a swing supporting leg which is arranged perpendicularly to the middle part of the bottom plate, the middle upper part of the swing supporting leg is rotatably connected to the swing receiving seat, and the bottom part of the swing supporting leg is located between the two swing receiving seats.

4. The nickel-hydrogen battery liquid absorbing device according to claim 3, wherein The swing driving assembly comprises a driving member which is fixed to the support frame and is arranged towards the two swing receiving seats, and the driving member is rotatably connected to the bottom part of the swing supporting leg.

5. The nickel-hydrogen battery liquid absorbing device according to claim 2, wherein The swing driving assembly further comprises a sliding rail which is fixed to the support frame, a sliding block which is slidably connected to the sliding rail, and a driving shaft which is fixed to the sliding block, the driving member is connected to the driving shaft, the swing supporting leg is provided with a vertical one-dot hole, and the two ends of the driving shaft extend into the one-dot hole.

6. The nickel-hydrogen battery liquid absorbing device according to claim 2, wherein The utility model also comprises a buffer mechanism which is fixed to the support frame and is located in the projection area of the battery cell fixing frame on the support frame.

7. The nickel-hydrogen battery liquid absorbing device according to claim 6, wherein The buffer mechanism comprises a first support and a pad which is arranged at the top end of the first support, and the buffer mechanism further comprises at least one buffer cylinder whose driving end is higher than the pad.

8. The nickel-hydrogen battery liquid absorbing device according to claim 7, wherein The utility model also comprises a temporary supporting mechanism which is symmetrically arranged at the two sides of the battery cell fixing frame, and the temporary supporting mechanism is used for supporting the battery cell fixing frame before swinging.

9. The nickel-hydrogen battery liquid absorbing device according to claim 6, wherein The temporary supporting mechanism comprises a second support, the height of the second support is lower than the distance between the battery cell fixing frame and the support frame, the second support is provided with a top block which extends towards the battery cell fixing frame, the top block is detachably fixed to the second support, and when the top block is fixed towards the battery cell fixing frame, the height from the top of the top block to the support frame is the same as the height between the battery cell fixing frame and the support frame. ​ 10. The nickel-hydrogen battery liquid absorbing device according to claim 6, wherein ​ ​

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