Battery liquid injection device

Abstract

The utility model provides a battery liquid injection device which comprises a fixing frame, a first mounting plate, a second mounting plate and a liquid injection cup, the first mounting plate is connected to one end of the fixing frame, the second mounting plate is connected to one end, opposite to the first mounting plate, of the fixing frame, the second mounting plate is used for mounting a battery to be subjected to liquid injection, and the liquid injection cup is arranged on the fixing frame. And the liquid injection cup comprises a liquid injection port, the liquid injection port is used for outputting electrolyte, the liquid injection cup is connected to the first mounting plate, and the liquid injection port is arranged towards the second mounting plate. According to the battery liquid injection device, the to-be-injected battery is placed through the second mounting plate, then the liquid injection cup is arranged right opposite to the battery, and liquid injection is performed on the battery through the liquid injection cup, so that the liquid injection efficiency is improved, and the labor cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery liquid injection technical field especially, relate to a battery liquid injection device. BACKGROUND

[0002] With the development of science and technology, the battery industry is also constantly innovating. The existing battery includes lead-acid battery, lithium ion battery and the like, but whether it is lead-acid battery or lithium ion battery, electrolyte is an important component of battery. As one of the four main materials of lithium ion battery, electrolyte has an important role, and as an ion conductor between the positive and negative electrodes in lithium ion battery, it is responsible for the back-and-forth transmission of lithium ions between the positive and negative electrodes during the charging and discharging process of the battery. Therefore, injecting electrolyte into the battery is an important step in the manufacturing process of the battery.

[0003] Due to the continuous innovation of the battery industry, various batteries are developed. During the development process, electrolyte needs to be injected into the battery, and then tested. Because the size of the battery in the development process is not the same, the existing liquid injection equipment may not be able to meet the liquid injection requirements. However, because it is not certain whether the battery in the development process is qualified, the corresponding liquid injection equipment will not be customized. Therefore, manual liquid injection is generally required during the development process. However, the process of manually injecting electrolyte is low in efficiency and has safety hazards. UTILITY MODEL CONTENT

[0004] The utility model provides a battery liquid injection device to solve the problem of manual liquid injection in the battery development process in the prior art.

[0005] The utility model provides a battery liquid injection device, which comprises a fixing frame, a first mounting plate, a second mounting plate and a liquid injection cup, the first mounting plate is connected to one end of the fixing frame, the second mounting plate is connected to the end of the fixing frame opposite to the first mounting plate, the second mounting plate is used for mounting the battery to be injected, the liquid injection cup comprises a liquid injection port, the liquid injection port is used for outputting electrolyte, the liquid injection cup is connected to the first mounting plate, and the liquid injection port is arranged towards the second mounting plate.

[0006] According to the battery liquid injection device provided by the utility model, the second mounting plate and the fixing frame are movably connected relative to each other.

[0007] According to the battery liquid injection device provided by the utility model, the battery liquid injection device further comprises a driving device, the driving device is in transmission connection with the second mounting plate, and is used for controlling the second mounting plate to move towards or away from the first mounting plate.

[0008] According to the battery liquid injection device provided by the utility model, the liquid injection cup comprises a cup body and a cup cover, and the cup body and the cup cover are detachably connected.

[0009] According to the battery liquid injection device, the liquid injection cup further comprises a hinge, one end of the hinge is hinged to the cup body, and the other end of the hinge is hinged to the cup cover.

[0010] According to the battery liquid injection device, the liquid injection cup further comprises a locking piece, one end of the locking piece is connected to the cup body, and the other end of the locking piece is detachably connected to the cup cover.

[0011] According to the battery liquid injection device, the liquid injection cup further comprises a gas pipe, the gas pipe is arranged on the cup cover, one end of the gas pipe is communicated with the inner cavity of the cup body, and the other end of the gas pipe is connected to the gas control device.

[0012] According to the battery liquid injection device, the battery liquid injection device further comprises a limiting piece, the limiting piece is connected to the second mounting plate, and the limiting piece abuts against the battery on the second mounting plate.

[0013] According to the battery liquid injection device, the second mounting plate is provided with a plurality of mounting holes, the limiting piece is arranged in the mounting hole, and the limiting piece is used for being connected to different mounting holes, so as to form different limiting ranges.

[0014] According to the battery liquid injection device, the cup cover and the liquid injection port are arranged at two ends of the cup body.

[0015] The battery liquid injection device provided by the application places the battery to be injected with liquid on the second mounting plate, and then places the liquid injection cup on the first mounting plate, so that the liquid injection cup faces the battery. The liquid injection cup contains electrolyte, and after the liquid injection cup faces the battery, the liquid injection port of the liquid injection cup is aligned with the opening on the battery, and the liquid injection operation can be performed. Because the liquid injection cup is arranged above the battery, the electrolyte in the liquid injection cup automatically flows into the battery by gravity. In the battery liquid injection device provided by the application, the battery is placed on the second mounting plate, and after the battery is aligned with the liquid injection port, the electrolyte can be injected. Compared with manually injecting electrolyte into the battery, the battery liquid injection device provided by the application can improve the liquid injection efficiency, save labor cost, and improve safety. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0017] Figure 1 is a schematic view of a battery liquid injection device provided by the present application.

[0018] Figure 2 is a schematic view of a liquid injection cup provided by the present application.

[0019] Reference signs:

[0020] 1, fixed frame;

[0021] 2, first mounting plate;

[0022] 3, second mounting plate;

[0023] 4, liquid injection cup; 41, liquid injection port; 42, cup body; 43, cup cover; 44, hinge; 45, locking member; 46, air pipe;

[0024] 5, driving device. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme of the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] The present application will be described below in combination with Figure 1 A battery liquid injection device provided by the present application is described below, which comprises a fixed frame 1, a first mounting plate 2, a second mounting plate 3 and a liquid injection cup 4. The first mounting plate 2 is connected to one end of the fixed frame 1, and the second mounting plate 3 is connected to the other end of the fixed frame 1 opposite to the first mounting plate 2. The second mounting plate 3 is used for mounting a battery to be injected with liquid. The liquid injection cup 4 comprises a liquid injection port 41 used for outputting electrolyte. The liquid injection cup 4 is connected to the first mounting plate 2, and the liquid injection port 41 is arranged towards the second mounting plate 3. In an embodiment, the second mounting plate 3 is movably connected to the fixed frame 1.

[0027] As shown in Figure 1 , the overall shape of the fixed frame 1 is approximately cuboid. In the present embodiment, the fixed frame 1 is composed of multiple flat plates, and in different embodiments, different materials can also be selected. For example, multiple fixed rods form a cuboid frame. The fixed frame 1 can be placed stably on a desktop or a bottom surface, and then the fixed frame 1 has sufficient mounting space.

[0028] After the fixing frame 1 is placed on the table, the first mounting plate 2 and the second mounting plate 3 are respectively mounted on the upper and lower ends of the fixing frame 1 in the vertical direction (i.e. in the direction of gravity). Since the electrolyte in the liquid injection cup 4 needs to be injected into the battery, the liquid injection cup 4 needs to be arranged above the battery. The first mounting plate 2 is used to mount the liquid injection cup 4, and the second mounting plate 3 is used to place the battery, so the first mounting plate 2 is mounted on the upper end of the fixing frame 1, and the second mounting plate 3 is mounted on the lower end of the fixing frame 1.

[0029] After the first mounting plate 2 and the second mounting plate 3 are assembled with the fixing frame 1, the liquid injection cup 4 is mounted on the first mounting plate 2. The connection between the liquid injection cup 4 and the first mounting plate 2 can be fixed or detachable. In this embodiment, the liquid injection cup 4 is used to store electrolyte, and the electrolyte is left in the liquid injection cup 4 for easy cleaning. At the same time, since the entire device is used to inject liquid into a single battery during research and development, it does not need to inject liquid into a large group battery, so the volume of the entire fixing frame 1 and the liquid injection cup 4 is small, which is convenient for moving. Therefore, the fixing frame 1 and the liquid injection cup 4 can be moved together, so in this embodiment, the fixed connection between the liquid injection cup 4 and the first mounting plate 2 is taken as an example.

[0030] Preferably, in this embodiment, the liquid injection port 41 is arranged towards the second mounting plate 3. Since the electrolyte in the liquid injection cup 4 is injected into the battery through the liquid injection port 41, and the battery is placed on the second mounting plate 3, the liquid injection port 41 is arranged towards the second mounting plate 3, i.e. towards the battery.

[0031] After the entire device is assembled, the battery liquid injection device is placed on a flat table. Then the battery to be injected is placed on the second mounting plate 3, and the battery to be injected is aligned with the liquid injection cup 4 on the first mounting plate 2. Then the liquid injection port 41 of the liquid injection cup 4 is inserted into the battery, and the injection can be performed. After the liquid injection cup 4 is connected with the battery, the electrolyte in the liquid injection cup 4 is injected into the battery through the liquid injection port 41. The entire injection process only needs to align the battery with the liquid injection cup 4, and the subsequent injection steps do not need manual operation.

[0032] It can be understood that in this embodiment, the second mounting plate 3 is arranged to be relatively movable with the fixing frame 1, so as to adjust the distance between the second mounting plate 3 and the first mounting plate 2. Since the first mounting plate 2 is used to mount the liquid injection cup 4, and the second mounting plate 3 is used to place the battery, adjusting the distance between the second mounting plate 3 and the first mounting plate 2 can adjust the distance between the liquid injection cup 4 and the battery.

[0033] The battery electrolyte filling device provided in this application is used to perform electrolyte filling operations on batteries during the research and development process. Different battery models developed during this process have different sizes. The electrolyte filling operation requires inserting the filling port 41 of the filling cup 4 into the battery, allowing the electrolyte to flow into the battery along the filling port 41. When encountering batteries of different sizes, if the battery height is greater than the distance between the second mounting plate 3 and the first mounting plate 2, the battery cannot be placed on the second mounting plate 3 along its height; if the battery height is less than the distance between the second mounting plate 3 and the first mounting plate 2, after placing the battery on the second mounting plate 3, the filling port 41 cannot be inserted into the battery because the battery height is insufficient, thus preventing electrolyte filling.

[0034] Therefore, in this embodiment, the second mounting plate 3 is movably connected to the fixing frame 1. The distance between the second mounting plate 3 and the first mounting plate 2 can be adjusted according to the height of the battery to be injected. When batteries of different heights need to be injected, the second mounting plate 3 moves to the corresponding position on the fixing frame 1 according to the battery height, so that the battery can be aligned and connected with the injection cup 4 to complete the injection operation. Preferably, because the second mounting plate 3 is connected to the fixing frame 1 and can move relative to the fixing frame 1, before placing the battery to be injected, the second mounting plate 3 can be moved to the position furthest from the first mounting plate 2, and then the battery can be placed. After the battery is placed, the second mounting plate 3 can move the battery together to the position where the battery abuts against the injection cup 4, and then the injection can be performed.

[0035] In this embodiment, the injection cup 4 is installed using the first mounting plate 2, and the battery is placed using the second mounting plate 3. The injection cup 4 is aligned and connected to the battery for injection. Compared with manual injection, this method can improve work efficiency and reduce safety risks.

[0036] In one embodiment, the battery filling device further includes a driving device 5, which is connected to the second mounting plate 3 for controlling the second mounting plate 3 to move toward or away from the first mounting plate 2.

[0037] like Figure 1 As shown, a driving device 5 is provided at the bottom of the second mounting plate 3. In this embodiment, the driving device 5 is installed at the bottom of the fixing frame 1, making the driving device 5 and the fixing frame 1 an integral unit for easy overall movement. Because the first mounting plate 2 is located above the second mounting plate 3, and a battery needs to be placed on top of the second mounting plate 3, the driving device 5 is connected to the bottom of the second mounting plate 3. The second mounting plate 3 is connected to the driving end of the driving device 5, and the driving device 5 drives the second mounting plate 3 to move in a direction toward or away from the first mounting plate 2. In this embodiment, the driving device 5 drives the second mounting plate 3 to move up and down.

[0038] like Figure 1As shown, in this embodiment, the drive device 5 is a pneumatic device, and the second mounting plate 3 is disposed on the drive device 5. The drive device 5 is driven by inflating or deflating air. In different embodiments, the drive device 5 may also be a hydraulic cylinder or a motor.

[0039] In one embodiment, the injection cup 4 includes a cup body 42 and a cup lid 43, which are detachably connected. In another embodiment, the cup lid 43 and the injection port 41 are respectively located at both ends of the cup body 42.

[0040] like Figure 1 As shown, the electrolyte filling cup 4 includes a cup body 42 with a closed inner cavity for storing electrolyte. A cup lid 43 is attached to the cup body 42 to seal it. Because the cup body 42 and the cup lid 43 are detachably connected, when there is no electrolyte in the cup body 42, the cup lid 43 can be removed from the cup body 42, leaving an opening in the cup body 42 the same size as the cup lid 43. Electrolyte can then be added to the cup body 42 through this opening. After the cup body 42 is filled with electrolyte, the cup lid 43 is reattached to the cup body 42 to seal it and prevent electrolyte leakage. It is understood that the filling port 41 is equipped with a valve or other control switch to prevent leakage when filling is not required.

[0041] In this embodiment, the cup lid 43 and the injection port 41 are respectively located at both ends of the cup body 42. Because the injection port 41 needs to face the lower second mounting plate 3, the cup lid 43 is positioned away from the second mounting plate 3. The cup lid 43 is located at the upper end of the injection cup 4, away from the second mounting plate 3. Therefore, when the cup body 42 needs to be replenished with electrolyte, it is only necessary to remove the cup lid 43 from the top of the cup body 42 and pour the electrolyte into the cup body 42 from the top. In this embodiment, the arrangement direction of the cup lid 43 is consistent with the direction of gravity, which makes electrolyte replenishment more convenient.

[0042] In one embodiment, the injection cup 4 further includes a hinge 44, one end of which is hinged to the cup body 42, and the other end of which is hinged to the cup lid 43.

[0043] like Figure 2 As shown, a hinge 44 is connected to the cup body 42, through which the cup lid 43 is connected to the cup body 42. When it is necessary to add electrolyte to the cup body 42 and remove the cup lid 43 from the cup body 42, the hinge 44 can be used to connect the cup lid 43, preventing the cup lid 43 from detaching from the cup body 42. Furthermore, the hinge 44 provides a higher degree of freedom, making the operation of the cup lid 43 more convenient during the disassembly or assembly of the cup lid 43 and the cup body 42.

[0044] In an embodiment, the liquid injection cup 4 further comprises a locking member 45, one end of the locking member 45 is connected to the cup body 42, and the other end of the locking member 45 is detachably connected to the cup cover 43.

[0045] As shown in Figure 2 the embodiment, the cup body 42 is further provided with a locking member 45, which can be selected from a lock or the like. One end of the locking member 45 is connected to the cup body 42, and the other end of the locking member 45 can hold the cup cover 43, so that the cup cover 43 is fixedly connected to the cup body 42. Because the other end of the locking member 45 is detachably connected to the cup cover 43, when the cup body 42 needs to be supplemented with electrolyte, the locking member 45 and the cup cover 43 are detached, so that the cup cover 43 and the cup body 42 can be detached.

[0046] In the embodiment, the locking member 45 is selected to realize the detachable connection between the cup cover 43 and the cup body 42. In different embodiments, different connection modes can also be selected. For example, the cup cover 43 and the cup body 42 are connected by threads, which will not be described one by one here.

[0047] In an embodiment, the liquid injection cup 4 further comprises a gas pipe 46, which is arranged on the cup cover 43 and communicates with the inner cavity of the cup body 42.

[0048] Please refer to Figure 1 and Figure 2 together, in the embodiment, the top of the cup cover 43 is further connected with a gas pipe 46. The gas pipe 46 communicates with the inner cavity of the cup body 42, that is, the gas pipe 46 communicates with the inner cavity storing the electrolyte. The other end of the gas pipe 46 is connected with a gas control device, which can perform suction or inflation operation. After the liquid injection port 41 is inserted into the battery, the gas control device is started, and the gas control device sucks the inner cavity of the cup body 42 through the gas pipe 46 to generate negative pressure in the inner cavity of the cup body 42. Then, the gas pressure in the battery is normal, so that the gas in the battery is sucked away by the negative pressure, thereby generating negative pressure in the battery through the gas control device. Because the negative pressure is generated in the battery, the electrolyte is more easily injected into the battery.

[0049] Further, after the negative pressure is generated in the battery, the gas control device can be used for pressurization. After the gas control device pressurizes the inner cavity of the cup body 42 through the gas pipe 46, the gas pressure in the inner cavity of the cup body 42 is greater than the gas pressure in the battery, so that the electrolyte is pressed into the battery through the gas pressure, further improving the injection efficiency of the electrolyte.

[0050] It should be finally pointed out that: the above examples are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been explained in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A battery electrolyte filling device, characterized in that, The battery liquid injection device comprises a fixing frame (1), a first mounting plate (2), a second mounting plate (3) and a liquid injection cup (4), the first mounting plate (2) is connected to one end of the fixing frame (1), the second mounting plate (3) is connected to the other end of the fixing frame (1) opposite to the first mounting plate (2), the second mounting plate (3) is used for mounting a battery to be injected with electrolyte, the liquid injection cup (4) comprises a liquid injection port (41) used for outputting electrolyte, the liquid injection cup (4) is connected to the first mounting plate (2), and the liquid injection port (41) is arranged towards the second mounting plate (3). The second mounting plate (3) is movably connected to the fixing frame (1).

2. The battery liquid injecting apparatus according to claim 1, wherein The battery liquid injection device further comprises a driving device (5) in transmission connection with the second mounting plate (3) for controlling the second mounting plate (3) to move towards or away from the first mounting plate (2).

3. The battery liquid injecting apparatus according to claim 2, wherein The liquid injection cup (4) comprises a cup body (42) and a cup cover (43), and the cup body (42) is detachably connected to the cup cover (43).

4. The battery liquid injecting apparatus according to claim 1, wherein The liquid injection cup (4) further comprises a hinge (44), one end of the hinge (44) is hingedly connected to the cup body (42), and the other end of the hinge (44) is hingedly connected to the cup cover (43).

5. The battery liquid injecting apparatus according to claim 4, wherein The liquid injection cup (4) further comprises a locking member (45), one end of the locking member (45) is connected to the cup body (42), and the other end of the locking member (45) is detachably connected to the cup cover (43).

6. The battery liquid injecting apparatus according to claim 4, wherein The liquid injection cup (4) further comprises an air pipe (46), the air pipe (46) is arranged on the cup cover (43), one end of the air pipe (46) is in communication with the inner cavity of the cup body (42), and the other end of the air pipe (46) is connected to a gas control device.

7. The battery liquid injecting apparatus according to claim 4, wherein The battery liquid injection device further comprises a limiting member, the limiting member is connected to the second mounting plate (3), and the limiting member abuts against the battery on the second mounting plate (3).

8. The battery liquid injecting apparatus according to claim 1, wherein The second mounting plate (3) is provided with a plurality of mounting holes, the limiting member is arranged in the mounting hole, and the limiting member is used for being connected to different mounting holes to form different limiting ranges.

9. The battery liquid injecting apparatus according to claim 8, wherein The cup cover (43) and the liquid injection port (41) are arranged at two ends of the cup body (42), respectively.

10. The battery liquid injecting apparatus according to claim 4, wherein ​

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