Battery liquid receiving device and calibration equipment

Abstract

The utility model provides a battery liquid receiving device and calibration equipment, the battery liquid receiving device comprises a liquid receiving disc, connecting structures and a liquid receiving cup, the top end of the liquid receiving disc is provided with a plurality of mounting grooves, and the two ends of the liquid receiving disc along the length direction are provided with the connecting structures; at least one part of the connecting structure is arranged on one side of the top of the liquid receiving plate in the height direction of the liquid receiving plate to form a clamping protrusion, one end of the liquid receiving cup is arranged in the mounting groove, and the other end of the liquid receiving cup extends out of the mounting groove and is provided with a liquid receiving opening. According to the battery liquid receiving device provided by the utility model, the liquid receiving cups are stably arranged on the liquid receiving tray by adopting the mounting grooves formed in the liquid receiving tray, and the plurality of liquid receiving cups are stably arranged on the liquid receiving tray, so that the electrolyte for accommodating the battery can be received, manual participation is not needed, and the calibration precision and the calibration efficiency of the liquid injection amount are favorably improved; and meanwhile, the safety risk is also reduced, and the problems of safety risk, increased production cost and low calibration precision in the calibration operation of the injection quantity of the battery electrolyte in the prior art are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of battery manufacturing, specifically to a battery liquid receiving device and calibration equipment. Background Technology

[0002] With the development of new energy technologies, battery technology is also constantly improving. Currently, lithium batteries play a crucial role in energy storage and power transmission, and every step in their manufacturing process directly impacts the performance and safety of the final product. Especially in the electrolyte filling stage, accurate electrolyte volume is fundamental to ensuring battery energy density, cycle life, and safe operation. However, traditional manual electrolyte volume calibration methods are gradually revealing their inherent limitations and defects in automated production environments.

[0003] Currently, electrolyte filling calibration relies on manual operation. Operators must enter the filling machine during equipment downtime or production breaks to perform calibration, which is not only time-consuming but also increases production costs. More importantly, the high voltage, chemical corrosion, and equipment operation risks in the production environment make manual calibration a high-safety-risk activity. In particular, during the electrolyte receiving process, unstable placement and fixation of the receiving cup can cause electrolyte overflow or splashing, thus interfering with the accuracy of electrolyte filling calibration and affecting the final quality of the battery. Furthermore, the subjectivity of manual operation and individual differences among operators are difficult to avoid. Even with rigorous training, it is difficult to achieve ideal accuracy and batch-to-batch consistency of electrolyte filling during continuous production. This problem is further exacerbated by physical fatigue under long-term continuous production conditions.

[0004] As can be seen from the above, the current battery electrolyte filling volume calibration operation has problems such as safety risks, increased production costs, and low calibration accuracy. Utility Model Content

[0005] The main objective of this application is to provide a battery electrolyte contacting device and calibration equipment to solve the problems of safety risks, increased production costs, and low calibration accuracy in the existing battery electrolyte injection volume calibration operation.

[0006] To achieve the above objectives, according to one aspect of the present invention, a battery liquid receiving device is provided. The battery liquid receiving device includes a receiving tray, a connecting structure, and a receiving cup. The top of the receiving tray has multiple mounting grooves. The receiving tray has connecting structures at both ends along its length. At least a portion of the connecting structures along the height of the receiving tray is provided on one side of the top of the receiving tray to form a snap-fit ​​protrusion. One end of the receiving cup is disposed in the mounting groove, and the other end of the receiving cup extends out of the mounting groove and has a receiving port.

[0007] Furthermore, multiple mounting slots are spaced apart along the length and / or width of the liquid receiving tray.

[0008] Furthermore, the depth of the mounting groove is one-third of the height of the liquid receiving cup.

[0009] Furthermore, the connecting structure is a mounting block, which is connected to the side of the liquid receiving tray. The bottom surface of the mounting block is coplanar with the bottom surface of the liquid receiving tray, and the top of the mounting block extends to the upper side of the liquid receiving tray to form a snap-fit ​​protrusion.

[0010] Furthermore, along the width direction of the liquid receiving tray, both ends of the mounting block are coplanar with both ends of the liquid receiving tray.

[0011] Furthermore, the mounting groove has multiple mounting sections that are connected and coaxial along the height direction of the liquid receiving tray, and the inner diameter of the multiple mounting sections decreases sequentially along the depth direction of the mounting groove.

[0012] Furthermore, the battery receiving device also includes a cup cap, which is detachably mounted on the receiving cup.

[0013] Furthermore, the battery contactor also includes a seal disposed between the outer wall of the contact cup and the inner wall of the cup lid; and / or the cup lid is threadedly connected to the contact cup.

[0014] Furthermore, the battery liquid receiving device also includes a conveying mechanism and a weighing mechanism. The liquid receiving tray is mounted on the conveying mechanism, which drives the liquid receiving tray to move. The weighing mechanism is mounted on one side of the conveying mechanism and has a weighing platform for weighing the liquid receiving cup.

[0015] In another aspect, this utility model provides a calibration device, which includes a liquid injection device and the aforementioned battery liquid receiving device. The battery liquid receiving device is mounted on a frame. The liquid injection device has a mounting base and a liquid injection head mounted on the mounting base. The mounting base is mounted on the frame, and the frame has a slot. A snap-fit ​​protrusion engages with the slot, and the liquid injection head and the liquid receiving cup are arranged in a one-to-one correspondence.

[0016] By applying the technical solution of this application, the battery electrolyte receiving device of this application adopts an installation groove on the receiving tray for installing and positioning the receiving cup, thereby realizing the stable placement of the receiving cup on the receiving tray. The receiving tray and the receiving cup form a structural unit through the cooperation structure. Multiple receiving cups are stably placed on the receiving tray to receive the electrolyte of the battery, thereby eliminating the need for manual operation of the receiving cup by hand. This is beneficial to improving the accuracy and efficiency of liquid injection calibration, while also reducing safety risks.

[0017] The mounting groove used in this application fixes the liquid receiving cup on the liquid receiving plate, thereby avoiding the phenomenon that the liquid receiving cup will be moved and affect the accuracy of the liquid injection volume calibration, thus improving the calibration accuracy.

[0018] This application employs a connecting structure on the liquid receiving tray, using snap-fit ​​protrusions on the connecting structure to install and fix the liquid receiving tray. This improves the stability of the liquid receiving tray installation, thereby enhancing the stability of the battery liquid receiving device and further improving the accuracy of liquid injection volume calibration. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 A schematic diagram of the mating structure of the liquid receiving tray, liquid receiving cup, and connecting structure of this application is shown;

[0021] Figure 2 A schematic diagram of the mating structure of the liquid receiving cup and the cup lid of this application is shown;

[0022] Figure 3 A schematic diagram of the mating structure of the liquid receiving tray, liquid receiving cup, connecting structure and conveying mechanism of this application is shown;

[0023] Figure 4 A schematic diagram of the weighing mechanism of this application is shown;

[0024] Figure 5 A schematic diagram of the calibration device of this application is shown.

[0025] The above figures include the following reference numerals:

[0026] 10. Liquid receiving tray; 20. Connecting structure; 30. Liquid receiving cup; 40. Cup lid; 50. Mounting base; 60. Liquid injection head; 70. Conveying mechanism; 80. Weighing mechanism; 810. Weighing platform; 820. Weighing groove. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0029] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0030] To address the safety risks, increased production costs, and low calibration accuracy issues present in existing battery electrolyte injection volume calibration operations, this application provides a calibration device. This device is used to calibrate the electrolyte injection volume of batteries, thereby adjusting the accuracy of the injection volume calibration of the injection device and ensuring batch consistency in production.

[0031] Specifically, the calibration equipment includes a frame and a liquid injection device and a battery receiving device mounted on the frame. The liquid injection device is used to provide electrolyte to the battery, and the battery receiving device is used to receive and contain the electrolyte.

[0032] Among them, such as Figures 1 to 5 As shown, the electrolyte injection device includes a mounting base 50, an injection pump mounted on the mounting base 50, and a plurality of injection heads 60 mounted on the mounting base 50. The mounting base 50 is mounted on a frame, wherein the injection pump is pipe-connected to the injection heads 60 to provide power for the electrolyte to flow to the injection heads 60.

[0033] The liquid injection device of this application is controlled by a controller to perform the liquid injection operation. The electrolyte is injected into the inside of the receiving cup 30 through the liquid injection head 60. The liquid injection head 60 and the receiving cup 30 are set one-to-one, so that multiple receiving cups 30 can be injected at one time, which is beneficial for batch liquid injection and thus improves the calibration efficiency of liquid injection volume.

[0034] like Figures 1 to 5As shown, the battery liquid receiving device includes a liquid receiving tray 10, a connecting structure 20, and a liquid receiving cup 30. The top of the liquid receiving tray 10 has multiple mounting grooves. The two ends of the liquid receiving tray 10 along the length direction are provided with the connecting structure 20. At least a part of the connecting structure 20 along the height direction of the liquid receiving tray 10 is provided on one side of the top of the liquid receiving tray 10 to form a snap-fit ​​protrusion. One end of the liquid receiving cup 30 is provided in the mounting groove, and the other end of the liquid receiving cup 30 extends out of the mounting groove and has a liquid receiving port.

[0035] The frame has a slot, and the snap-fit ​​protrusion engages with the slot. When the liquid receiving cup 30 needs to receive liquid, the liquid receiving cup 30 is installed into the mounting slot of the liquid receiving tray 10, and then the liquid receiving tray 10 is placed on the frame and fixed on the frame by snap-fit ​​protrusion and slot, thus fixing the liquid receiving tray 10.

[0036] Specifically, this application adopts a connecting structure 20 on the liquid receiving tray 10, and the liquid receiving tray 10 is installed and fixed by the snap-fit ​​protrusion on the connecting structure 20 engaging with the snap-fit ​​groove on the frame. This is beneficial to improving the installation stability of the liquid receiving tray 10, thereby improving the stability of the battery liquid receiving device and further improving the accuracy of the liquid injection volume calibration.

[0037] In this embodiment, as Figure 1 As shown, the connecting structure 20 is a mounting block. The mounting block is connected to the side of the liquid receiving tray 10. The top of the mounting block extends to the upper side of the liquid receiving tray 10 to form a snap-fit ​​protrusion. During the installation of the liquid receiving tray 10, the liquid receiving tray 10 is placed on the frame, and then the liquid receiving tray 10 is pushed to slide the snap-fit ​​protrusion into the slot. This achieves the goal of the frame supporting the liquid receiving plate and the snap-fit ​​protrusion and the slot limiting the liquid receiving tray 10, thereby completing the fixation of the liquid receiving tray 10.

[0038] Both the liquid receiving tray 10 and the mounting block are cubic structures. The bottom surface of the mounting block is coplanar with the bottom surface of the liquid receiving tray 10, which helps to improve the strength of the connection structure 20 and the aesthetics of the battery liquid receiving device.

[0039] In particular, along the width direction of the liquid receiving tray 10, the two ends of the mounting block are coplanar with the two ends of the liquid receiving tray 10, which helps to improve the strength of the connection structure 20 and the aesthetics of the battery liquid receiving device.

[0040] In this embodiment, the length direction of the liquid receiving tray 10 is... Figure 1 As shown in the X direction, the width direction of the liquid receiving tray 10 is... Figure 1 As shown in the Y direction, the height direction of the liquid receiving tray 10 is... Figure 1 The Z direction is shown, wherein the depth direction of the mounting groove is set in the same direction as the height direction of the liquid receiving tray 10.

[0041] In the technical solution of this application, the battery electrolyte receiving device adopts an installation groove on the receiving tray 10 for installing and positioning the electrolyte receiving cup 30, thereby realizing the stable placement of the electrolyte receiving cup 30 on the receiving tray 10. The receiving tray 10 and the electrolyte receiving cup 30 form a structural whole through their cooperative structure. The multiple electrolyte receiving cups 30 are stably placed on the receiving tray 10 to receive and contain the electrolyte of the battery, thus eliminating the need for manual operation of the electrolyte receiving cup 30 by hand. This is beneficial to improving the accuracy and efficiency of electrolyte volume calibration, while also reducing safety risks.

[0042] Furthermore, the mounting groove used in this application fixes the liquid receiving cup 30 onto the liquid receiving tray 10, thereby preventing the liquid receiving cup 30 from shaking and affecting the accuracy of the liquid injection volume calibration, thus improving the calibration accuracy.

[0043] In this embodiment, the multiple mounting slots can be spaced apart along the length of the receiving tray 10 to form a row of multiple receiving cups 30; the multiple mounting slots can also be spaced apart along the width direction, with the multiple receiving cups 30 forming a multi-row structure; or the multiple mounting slots can be spaced apart along both the length and width directions of the receiving tray 10 to form a multi-row, multi-column structure. This layout ensures that the receiving cups 30 are evenly distributed on the receiving tray 10, thereby maintaining the balance of the receiving tray 10 during the liquid injection process and avoiding tilting or shaking caused by uneven electrolyte distribution, which would affect the calibration accuracy of the liquid injection volume.

[0044] In one specific embodiment of this example, the mounting slot is provided with two rows of ten columns to accommodate 20 liquid receiving cups 30 at the same time.

[0045] In this embodiment, the depth of the mounting groove is one-third of the height of the liquid receiving cup 30. By setting the depth of the mounting groove to one-third of the height of the liquid receiving cup 30, the stability of the liquid receiving cup 30 is improved, ensuring that the liquid receiving cup 30 is stably placed on the liquid receiving tray during the liquid receiving process and during the transfer process after liquid receiving is completed, and avoiding the phenomenon of the liquid receiving cup 30 shaking on the liquid receiving tray 10. It also facilitates the quick installation and removal of the liquid receiving cup 30.

[0046] In this embodiment, the mounting groove is a cylindrical groove structure, and the liquid receiving cup 30 is also cylindrical. The liquid receiving tray 10 of this application can accommodate liquid receiving cups 30 of different sizes, thereby improving the applicability of the liquid receiving tray 10 for the installation and fixing of liquid receiving cups 30 of various sizes.

[0047] Specifically, the mounting groove has multiple mounting sections that are connected along the height direction of the liquid receiving tray 10 and are coaxial. The inner diameter of the multiple mounting sections decreases sequentially along the depth direction of the mounting groove. The multiple mounting sections arranged coaxially help to ensure that the liquid receiving cup 30 is always centered inside the mounting groove, thereby improving the stability and installation accuracy of the liquid receiving cup 30.

[0048] Among them, the inner diameters of multiple installation sections are different, and each installation section can be used to install and fix liquid receiving cups 30 of different diameters.

[0049] like Figure 2 As shown, the battery liquid receiving device also includes a cup cover 40, which is detachably disposed at one end of the liquid receiving port of the liquid receiving cup 30.

[0050] During the liquid receiving process of the receiving cup 30, the cup cover 40 remains detached. After the receiving cup 30 has finished receiving the liquid, the cup cover 40 is placed on one end of the liquid receiving port of the receiving cup 30 to prevent electrolyte leakage, which could affect the calibration accuracy of the liquid injection volume.

[0051] In this embodiment, the cup lid 40 is threadedly connected to the liquid receiving cup 30. The liquid receiving cup 30 has an external thread, and the inner wall surface of the cup lid 40 has an internal thread. The internal thread and the external thread are rotatably connected to fix the cup lid 40 on the liquid receiving cup 30.

[0052] In this embodiment, the battery liquid receiving device also includes a sealing element, which is disposed between the outer wall surface of the liquid receiving cup 30 and the inner wall surface of the cup cover 40. The sealing element is a sealing ring structure. By providing a sealing element between the liquid receiving cup 30 and the cup cover 40, it is beneficial to further improve the sealing effect and thus improve the calibration accuracy of the liquid injection volume.

[0053] like Figure 3 and Figure 4 As shown, the battery liquid receiving device also includes a conveying mechanism 70 and a weighing mechanism 80. The weighing mechanism 80 is located on one side of the conveying mechanism 70, and the liquid receiving tray 10 is located on the conveying mechanism 70. The conveying mechanism 70 is used to drive the liquid receiving tray 10 to move. The conveying mechanism 70 and the weighing mechanism 80 are conducive to realizing the automatic calibration and adjustment of the liquid injection volume, thereby reducing manual intervention, improving the accuracy of electrolyte calibration, and reducing safety risks.

[0054] Specifically, the conveying mechanism 70 is mounted on the frame and has a transmission belt structure. When it is necessary to transfer the liquid receiving tray 10, the liquid receiving tray 10 is placed on the transmission belt. The transmission belt drives the liquid receiving tray 10 to move toward the side of the liquid injection head 60 or the side of the load-bearing mechanism. When liquid is needed, the liquid receiving tray 10 is moved toward the side of the liquid receiving head and then fixed by the locking protrusion and the locking groove. When load-bearing is needed, the liquid receiving tray 10 is moved to the side of the load-bearing mechanism.

[0055] In this embodiment, the weighing mechanism 80 has a weighing platform 810 for weighing the liquid receiving cup 30. The weighing platform 810 has multiple weighing grooves 820, each corresponding to a liquid receiving cup 30, for simultaneous independent weighing of multiple liquid receiving cups 30. Each weighing groove 820 is equipped with an independent sensor for weighing the liquid receiving cup 30. After weighing, the liquid receiving cup 30 can be manually sampled and cleaned.

[0056] In this embodiment, when transferring the liquid receiving cup 30 from the liquid receiving tray 10 to the weighing platform 810, the liquid receiving cup 30 can be transferred manually or by using a mechanical gripper to grasp the liquid receiving cup 30. It is understood that the mechanical gripper is a mechanical gripper with grasping function in the prior art. After the mechanical gripper grasps the liquid receiving cup 30, it slides on the frame to transfer the liquid receiving cup 30 to one side of the weighing platform 810, and places the liquid receiving cup 30 by extending and retracting.

[0057] In this embodiment, the weight of the electrolyte is obtained by subtracting the weight of the receiving cup 30 and the cup lid 40 from the weighed weight. By comparing it with the preset standard weight in the controller, the controller feeds back the difference to the injection pump to adjust the injection volume of the corresponding injection head 60, thereby achieving the calibration effect and ensuring batch consistency in production.

[0058] As can be seen from the above description, the embodiments of this application achieve the following technical effects:

[0059] The battery electrolyte receiving device of this application adopts an installation groove on the receiving tray 10 for installing and positioning the receiving cup 30, thereby realizing the stable placement of the receiving cup 30 on the receiving tray 10. The receiving tray 10 and the receiving cup 30 form a structural unit through their cooperation. Multiple receiving cups 30 are stably placed on the receiving tray 10 to receive and hold the electrolyte of the battery, thus eliminating the need for manual operation of the receiving cup 30 by hand. This is beneficial to improving the accuracy and efficiency of electrolyte volume calibration, while also reducing safety risks.

[0060] The mounting groove used in this application fixes the liquid receiving cup 30 on the liquid receiving plate 10, thereby avoiding the phenomenon that the liquid receiving cup 30 is moved and affecting the accuracy of the liquid injection volume calibration, and improving the accuracy of the liquid injection volume calibration.

[0061] This application adopts a connecting structure 20 on the liquid receiving tray 10, and the liquid receiving tray 10 is installed and fixed by the snap-fit ​​protrusion on the connecting structure 20, which helps to improve the installation stability of the liquid receiving tray 10, thereby improving the stability of the battery liquid receiving device, and further improving the accuracy of liquid injection volume calibration.

[0062] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0063] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0064] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0065] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A battery liquid connection device, characterized by comprising: The battery liquid receiving device comprises: a liquid receiving tray (10) having a plurality of mounting grooves at the top end thereof; a connecting structure (20) provided at both ends of the liquid receiving tray (10) in the length direction, at least a part of the connecting structure (20) being provided at the top side of the liquid receiving tray (10) in the height direction of the liquid receiving tray (10) to form a clamping protrusion; a liquid receiving cup (30) provided at one end in the mounting groove, the other end of the liquid receiving cup (30) extending out of the mounting groove and having a liquid receiving opening.

2. The battery liquid contactor of claim 1, wherein, The plurality of mounting grooves are provided at intervals in the length and / or width direction of the liquid receiving tray (10).

3. The battery liquid receiving device according to claim 1, wherein the depth of the mounting groove is one third of the height of the liquid receiving cup (30).

4. The battery liquid access device of claim 1, wherein The connecting structure (20) is a mounting block connected to the side surface of the liquid receiving tray (10), the bottom surface of the mounting block is coplanar with the bottom surface of the liquid receiving tray (10), the top end of the mounting block extends to the upper side of the liquid receiving tray (10) to form the clamping protrusion.

5. The battery liquid contactor of claim 4, wherein, In the width direction of the liquid receiving tray (10), the two ends of the mounting block are coplanar with the two ends of the liquid receiving tray (10).

6. The battery liquid receiving device according to claim 1, wherein the mounting groove has a plurality of mounting sections in communication and coaxial in the height direction of the liquid receiving tray (10), the inner diameter of the plurality of mounting sections gradually decreases in the depth direction of the mounting groove.

7. The battery fluid coupling device of claim 1, wherein, The battery liquid receiving device further comprises a cup cover (40) detachably provided on the liquid receiving cup (30).

8. The battery liquid receiving device according to claim 7, wherein the battery liquid receiving device further comprises a sealing member provided between the outer wall surface of the liquid receiving cup (30) and the inner wall surface of the cup cover (40); and / or the cup cover (40) is threadedly connected with the liquid receiving cup (30).

9. The battery liquid junction device of any one of claims 1 to 8, wherein, The battery liquid receiving device further comprises: a conveying mechanism (70) on which the liquid receiving tray (10) is provided, the conveying mechanism (70) being used to drive the liquid receiving tray (10) to move; a weighing mechanism (80) provided at one side of the conveying mechanism (70), the weighing mechanism (80) having a weighing table surface (810) used to weigh the liquid receiving cup (30).

10. A calibration apparatus characterized by comprising: The battery liquid receiving device comprises: a rack; the battery liquid receiving device according to any one of claims 1 to 9 is provided on the rack; a liquid injection device having a mounting seat (50) and a liquid injection head (60) provided on the mounting seat (50), the mounting seat (50) being provided on the rack, the rack having a clamping groove, the clamping protrusion being clamped and matched with the clamping groove, and the liquid injection head (60) being provided one by one with the liquid receiving cup (30).

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