Novel liquid injection tool

Abstract

The utility model discloses a novel liquid injection tool which comprises a liquid injection buffer positioning mechanism and a liquid injection implementation mechanism, the liquid injection buffer positioning mechanism is used for placing a plurality of objects to be subjected to liquid injection, positioning the objects to be subjected to liquid injection and playing a role in buffering the objects to be subjected to liquid injection when the objects to be subjected to liquid injection are subjected to downward pressure; the liquid injection implementation mechanism is located over the object to be injected with liquid and used for injecting electrolyte into an inner cavity of the object to be injected with liquid through a liquid injection opening formed in the top of the object to be injected with liquid. The liquid injection device is scientific in structural design, can guarantee the sealing performance of a liquid injection channel in the liquid injection process of an object (namely a lithium battery and a super capacitor) to be injected, effectively prevents a liquid injection port of the object (namely the lithium battery and the super capacitor) to be injected from being crushed, guarantees the product production quality of the object to be injected, effectively prevents the appearance of the product from being damaged, and improves the product quality. The method has great practical significance.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery electrolyte injection technology and supercapacitor electrolyte injection technology, and in particular to a novel injection tool. Background Technology

[0002] The electrolyte injection process for lithium batteries and supercapacitors (collectively referred to as the objects to be injected) is a crucial step in their production. During the injection process, to ensure that a fixed amount of electrolyte is completely injected, it is usually necessary to evacuate the cavity inside the object through the injection port while simultaneously pressurizing the electrolyte. Under the combined action of vacuum "suction" and high pressure "push," the electrolyte is injected into the object.

[0003] Throughout the entire electrolyte injection process, the sealing of the injection channel must be ensured. Currently, during the injection process, the injection port of the object to be injected must first be aligned with the injection nozzle of the electrolyte injection machine. Then, to achieve the required seal, the injection nozzle of the electrolyte injection machine applies significant pressure to the injection port of the object to be injected. This operation can easily lead to excessive pressure applied to the injection port, which can damage the injection port of the object to be injected (i.e., lithium batteries and supercapacitors), affecting the production quality of the product and causing damage to its appearance.

[0004] Therefore, there is an urgent need to develop a technology that can effectively prevent the injection port of the object to be injected (i.e., lithium battery and supercapacitor) from being damaged by pressure while ensuring the sealing of the injection channel during the injection process, thus ensuring the product manufacturing quality of the object to be injected and effectively preventing damage to the product appearance. Utility Model Content

[0005] The purpose of this invention is to provide a new type of liquid injection tool to address the technical deficiencies of existing technologies.

[0006] Therefore, this utility model provides a novel liquid injection tooling, which includes a liquid injection buffer positioning mechanism and a liquid injection implementation mechanism;

[0007] The liquid injection buffer positioning mechanism is used to place multiple objects to be injected, position the objects to be injected, and buffer the objects to be injected when they are subjected to downward pressure.

[0008] The electrolyte injection mechanism is located directly above the object to be injected and is used to inject electrolyte into the internal cavity of the object through the injection port set on the top of the object.

[0009] The liquid injection mechanism includes a liquid injection nozzle fixing plate and a liquid injection nozzle pressing drive cylinder;

[0010] The power output end of the lower part of the injection nozzle pressure drive cylinder is connected to the top center of the injection nozzle fixing plate;

[0011] Multiple injection nozzles are provided at the bottom of the injection nozzle fixing plate;

[0012] Multiple injection nozzles are located directly above multiple objects to be injected.

[0013] The liquid injection buffer positioning mechanism includes a positioning base, a rubber pad, and a positioning hole;

[0014] The positioning base is provided with multiple positioning holes;

[0015] The positioning hole is used to place the object to be injected.

[0016] The top opening of each positioning hole;

[0017] The bottom surface of each positioning hole is covered with a rubber pad;

[0018] The object to be injected is a lithium battery or a supercapacitor;

[0019] The shape and size of the positioning hole should correspond to and match the shape and size of the object to be injected.

[0020] As can be seen from the technical solution provided by this utility model above, compared with the prior art, this utility model provides a novel liquid injection tool with a scientifically designed structure. It can ensure the sealing of the liquid injection channel during the liquid injection process of the object to be injected (i.e., lithium battery and supercapacitor), while effectively preventing the liquid injection port of the object to be injected (i.e., lithium battery and supercapacitor) from being crushed, ensuring the product production quality of the object to be injected, and effectively preventing damage to the product appearance. It has significant practical significance.

[0021] This invention relates to an injection fixture that prevents damage to the injection port and improves the sealing performance of the injection process. It uses an annular rubber ring on the injection nozzle of the electrolyte injector to press the injection port of the object to be injected, ensuring a tight seal of the injection channel during the injection process. Additionally, a specially designed injection buffer positioning mechanism incorporates a rubber pad embedded in the bottom of the positioning hole used to place and position the object to be injected. This rubber pad distributes the pressure exerted by the injection nozzle of the electrolyte injector on the injection port of the object during the injection process, effectively preventing damage to the shell opening (i.e., the injection port) of the object. Attached Figure Description

[0022] Figure 1 This utility model provides an overall structural diagram of a novel liquid injection tool, which includes a liquid injection buffer positioning mechanism.

[0023] Figure 2 This is a cross-sectional structural diagram of the liquid injection buffer positioning mechanism in a novel liquid injection tooling according to the present invention.

[0024] In the diagram: 1 is the positioning base, 2 is the rubber pad, 3 is the positioning hole, and 5 is the injection nozzle pressure drive cylinder.

[0025] 6 is the injection nozzle fixing plate; 7 is the injection nozzle; 70 is the injection channel; 8 is the annular rubber ring;

[0026] 9 represents the object to be injected; 90 represents the injection port. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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 of this utility model.

[0029] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] See Figure 1 , Figure 2This utility model provides a novel liquid injection tool, including a liquid injection buffer positioning mechanism and a liquid injection implementation mechanism;

[0032] The liquid injection buffer positioning mechanism is used to place multiple objects 9 to be injected (such as lithium batteries or supercapacitors), and to position the objects 9 to be injected. When the objects 9 to be injected are subjected to downward pressure, the mechanism provides a buffering effect (i.e., provides an upward elastic force to share the downward pressure applied by the injection nozzle of the electrolyte injector to the injection port of the object to be injected during the injection process).

[0033] The electrolyte injection mechanism is located directly above the object to be injected 9 and is used to inject electrolyte into the internal cavity of the object to be injected 9 through the injection port provided on the top of the object to be injected 9.

[0034] In this utility model, the liquid injection buffer positioning mechanism includes: a positioning base 1, a rubber pad 2, and a positioning hole 3;

[0035] The positioning base 1 is provided with multiple (e.g., three or any other number of) positioning holes 3;

[0036] The top opening of each positioning hole 3;

[0037] The bottom surface of each positioning hole 3 is covered with a rubber pad 2.

[0038] In practice, the shape and size of the positioning hole 3 correspond to and match the shape and size of the object to be injected 9.

[0039] In practice, the positioning hole 3 is cylindrical or cuboid in shape.

[0040] In terms of specific implementation, for the liquid injection buffer positioning mechanism, in order to place the rubber pad 2 on the bottom surface of the positioning hole 3, the first implementation method is as follows:

[0041] A rubber pad 2 is adhered to the bottom surface of each positioning hole 3;

[0042] Furthermore, the bottom surface of the rubber pad 2 is the adhesive-backed surface (i.e., the surface with adhesive); that is, the adhesive-backed surface of the rubber pad 2 faces downwards.

[0043] The bottom surface of the rubber pad 2 is bonded to the bottom surface of the positioning hole 3.

[0044] In terms of specific implementation, for the liquid injection buffer positioning mechanism, in order to place the rubber pad 2 on the bottom surface of the positioning hole 3, the second implementation method is as follows:

[0045] The positioning base 1 includes a base plate 101 and a positioning post 102;

[0046] The positioning post 102 is provided with multiple (e.g., three or any other number of) positioning holes 3 vertically penetrating through it;

[0047] The positioning post 102 is provided with a rubber pad embedded in a groove directly below the positioning hole 3;

[0048] The rubber pad is embedded in the groove, and a horizontally distributed rubber pad 2 is inlaid therein;

[0049] All the positioning holes 3 are located on the top of the rubber pad 2. In other words, the top surface of the same rubber pad 2 serves as the bottom surface of all the positioning holes 3, and is used to seal the bottom of all the positioning holes 3.

[0050] The bottom surface of the rubber pad 2 is set on the top surface of the base plate 101;

[0051] In other words, the rubber pad 2 is positioned between the bottom of the positioning hole 3 of the positioning post 102 and the top of the base plate 1.

[0052] Furthermore, the bottom of the positioning post 102 is fixedly connected to the top of the base plate 101.

[0053] Furthermore, the bottom perimeter of the positioning post 102 is fixedly connected to the top perimeter of the base plate 101.

[0054] It should be noted that, for the liquid injection buffer positioning mechanism of the present invention, the rubber pad 2 can be embedded in the bottom surface of the positioning hole 3 of the positioning post 102, and then the positioning post 102 with the positioning hole 3 and the base plate 1 are assembled to ensure that the position of the rubber pad 2 does not shift during use.

[0055] For the liquid injection buffer positioning mechanism, in order to position the rubber pad 2 on the bottom surface of the positioning hole 3, a second implementation method is used. The rubber pad 2 is fixed in position by assembling the base plate 1 and the positioning post 102 with the positioning hole 3. The rubber pad 2 is located between the bottom of the positioning hole 3 on the positioning post 102 and the top of the base plate 1. Specifically, the rubber pad 2 is directly below the positioning hole 3, and the operator can visually see the rubber pad 2 through the positioning hole 3.

[0056] In this utility model, the liquid injection mechanism includes a liquid injection nozzle fixing plate 6 and a liquid injection nozzle pressing drive cylinder 5;

[0057] The power output end (i.e., piston rod) at the bottom of the injection nozzle downward drive cylinder 5 is connected to the top center of the injection nozzle fixing plate 6;

[0058] Multiple injection nozzles 7 are provided at the bottom of the injection nozzle fixing plate 6;

[0059] Multiple injection nozzles 7 are located directly above multiple objects 9 to be injected;

[0060] In practice, each injection nozzle 7 has a vertically distributed injection channel 70 at its center.

[0061] Each injection nozzle 7 has an annular rubber ring 8 on its bottom surface;

[0062] The central through hole of the annular rubber ring 8 is located directly below the injection channel 70 inside the injection nozzle 7 and is directly connected to the injection channel 70.

[0063] Furthermore, the annular rubber ring 8 on the bottom surface of the injection nozzle 7 is used to press down on the top periphery of the injection port 90 provided on the top of the object to be injected 9;

[0064] The central through hole of the annular rubber ring 8 is located directly above the injection port of the object to be injected 9 and is directly connected to the injection port.

[0065] It should be noted that the injection port of the object to be injected 9 is connected to the internal cavity of the object to be injected 9 where electrolyte needs to be injected.

[0066] Furthermore, the annular rubber ring 8 is circular in shape.

[0067] In practice, three injection nozzles 7 are provided at the bottom of the injection nozzle fixing plate 6;

[0068] Three injection nozzles 7, including one first injection nozzle and two second injection nozzles;

[0069] The lower power output end of the injection nozzle-driven cylinder 5 is the piston rod;

[0070] The first injection nozzle is located directly below the piston rod of the injection nozzle downward drive cylinder 5;

[0071] The two second injection nozzles are located on the left and right sides of the first injection nozzle, and are symmetrically distributed.

[0072] Furthermore, the first injection nozzle and the piston rod of the injection nozzle downward drive cylinder 5 are located on the same central axis.

[0073] It should be noted that, for this utility model, the cylinder body of the injection nozzle downward driving cylinder 5 can be set on an external cylinder mounting bracket. The cylinder fixing method is a conventional and mature technology, which will not be described in detail here.

[0074] It should be noted that, for this utility model, the injection nozzle 7 can be a conventional injection nozzle on an existing electrolyte injection machine with mature technology. Its electrolyte injection working principle and matching injection design are existing conventional designs, and will not be described in detail here.

[0075] It should be noted that, for this utility model, the sealing of the liquid injection can be achieved by pressing the annular rubber ring on the injection nozzle of the electrolyte injection machine with the injection port.

[0076] It should be noted that, in the specific implementation of this utility model, when performing electrolyte injection on the object to be injected 9 (e.g., a lithium battery or a supercapacitor), the injection nozzle 7 moves downward under the drive of the injection nozzle downward driving cylinder 5. The annular rubber ring 8 on the injection nozzle contacts the top periphery of the injection port 90 at the top of the object to be injected 9. Under the action of downward pressure, the annular rubber ring 7 on the injection nozzle and the rubber pad 2 embedded in the injection buffer positioning mechanism simultaneously bear pressure and both deform. At this time, it can avoid the annular rubber ring 7 applying too much pressure to the injection port. When the object to be injected 9 moves downward, it can prevent the metal part at the bottom of the injection nozzle 7 (the bottom of the injection nozzle 7 is made of metal) from damaging the injection port 90.

[0077] In addition, for this utility model, since the rubber pad embedded in the liquid injection buffer positioning mechanism can share the pressure borne by the annular rubber ring on the liquid injection nozzle of the electrolyte injector, the deformation of the annular rubber ring 8 on the liquid injection nozzle can be reduced, its fatigue can be reduced, and its service life and sealing performance can be improved.

[0078] Furthermore, in this invention, the rubber pad embedded in the injection buffer positioning mechanism can share the pressure borne by the annular rubber ring on the injection nozzle of the electrolyte injector, thereby preventing the annular rubber ring of the injection nozzle from being over-compressed. This prevents the annular rubber ring from having its lifespan reduced or its sealing effect affected by repeated over-compression, thus ensuring the sealing effect.

[0079] To better understand the technical solution of this utility model, the working principle of this utility model is explained below.

[0080] This invention features a specially designed injection buffer positioning mechanism, instead of a rigid structure. This effectively prevents damage to the injection port area of ​​the object to be injected (e.g., a lithium battery or supercapacitor) caused by uneven downward pressure transmitted to the injection nozzle during the injection process due to downward mechanical movement. This invention achieves this by embedding a rubber pad within the injection buffer positioning mechanism, which, together with the annular rubber ring on the injection nozzle of the electrolyte injector, shares the downward pressure, thus preventing damage to the injection port area of ​​the object to be injected (e.g., a lithium battery or supercapacitor) during the injection process.

[0081] In this invention, during the electrolyte injection process, the rubber pad embedded in the injection buffer positioning mechanism can share the pressure borne by the annular rubber ring on the injection nozzle of the electrolyte injector, thereby preventing the injection nozzle from damaging the injection nozzle of the object to be injected (e.g., a lithium battery or a supercapacitor). Simultaneously, it reduces the deformation of the annular rubber ring on the injection nozzle of the electrolyte injector, lowers its fatigue, and improves its lifespan and sealing performance.

[0082] Compared with the prior art, the novel liquid injection tool provided by this utility model has the following beneficial effects:

[0083] 1. The novel liquid injection fixture of this utility model has a liquid injection buffer positioning mechanism that ensures that the silicone pad does not fall off during use by embedding a silicone pad.

[0084] 2. By applying this utility model, the injection port of the object to be injected (such as a lithium battery or a supercapacitor) can be prevented from being damaged during the injection process, thereby improving the appearance quality of the product.

[0085] 3. By applying this utility model, during the liquid injection process of the object to be injected 9, the pressure of the annular rubber ring of the liquid injection nozzle of the electrolyte injection machine can be shared by the rubber pad embedded in the liquid injection buffer positioning mechanism, thereby increasing the service life of the annular rubber ring of the liquid injection nozzle and improving the sealing performance of the liquid injection channel.

[0086] Therefore, this invention can prevent the injection nozzle of the electrolyte injection machine from damaging the injection port of the object to be injected (e.g., a lithium battery or supercapacitor), ensuring the production quality of the object to be injected (e.g., a lithium battery or supercapacitor) and reducing product appearance defects. Simultaneously, it reduces the deformation of the annular rubber ring on the injection nozzle, lowering its fatigue and improving its lifespan and sealing performance. Therefore, the injection fixture of this invention has strong practicality in production practice.

[0087] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A novel liquid injection tool, characterized by, The injection buffer positioning mechanism and the injection implementation mechanism are included. The injection buffer positioning mechanism is used for placing a plurality of objects to be injected (9) and positioning the objects to be injected (9), and plays a buffering role on the objects to be injected (9) when the objects to be injected (9) are subjected to downward pressure. The injection implementation mechanism is located directly above the objects to be injected (9) and is used for injecting electrolyte into the internal cavities of the objects to be injected (9) through injection ports provided at the top of the objects to be injected (9). The injection implementation mechanism includes an injection nozzle fixing plate (6) and an injection nozzle downward driving air cylinder (5). The power output end at the lower part of the injection nozzle downward driving air cylinder (5) is connected with the top center position of the injection nozzle fixing plate (6). The bottom of the injection nozzle fixing plate (6) is provided with a plurality of injection nozzles (7). The plurality of injection nozzles (7) are respectively located directly above the plurality of objects to be injected (9). The injection buffer positioning mechanism includes a positioning base (1), a rubber pad (2), and a positioning hole (3). The positioning base (1) is provided with a plurality of positioning holes (3). The positioning hole (3) is used for placing the object to be injected (9). The top opening of each positioning hole (3) is provided. The bottom surface of each positioning hole (3) is covered with a rubber pad (2). The object to be injected (9) is a lithium battery or a super capacitor. The shape and size of the positioning hole (3) correspond to and match the shape and size of the object to be injected (9).

2. The novel liquid injection tool according to claim 1, wherein In order to set the rubber pad (2) on the bottom surface of the positioning hole (3), the first implementation mode is as follows: The bottom surface of each positioning hole (3) is bonded with a rubber pad (2). The bottom surface of the rubber pad (2) is a back adhesive surface.

3. The novel liquid injection tool according to claim 1, wherein In order to set the rubber pad (2) on the bottom surface of the positioning hole (3), the second implementation mode is as follows: The positioning base (1) includes a bottom plate (101) and a positioning column (102). A plurality of positioning holes (3) are vertically and penetratively arranged on the positioning column (102). The positioning column (102) is provided with a rubber pad embedding groove at a position directly below the positioning hole (3). A horizontally distributed rubber pad (2) is embedded in the rubber pad embedding groove. All the positioning holes (3) are arranged on the top of the rubber pad (2). The top surface of the rubber pad (2) is used for sealing the bottom of all the positioning holes (3). The bottom surface of the rubber pad (2) is arranged on the top surface of the bottom plate (101).

4. The novel liquid injection tool according to claim 3, wherein The bottom of the positioning column (102) is fixedly connected with the top of the bottom plate (101).

5. The novel liquid injection tool according to claim 4, wherein The bottom peripheral edge of the positioning column (102) is fixedly connected with the top peripheral edge of the bottom plate (101).

6. The novel liquid injection tool according to claim 1, wherein Each injection nozzle (7) has a vertical distribution injection channel (70) at the inner center position. The bottom surface of each injection nozzle (7) is provided with an annular rubber ring (8). The center through hole of the annular rubber ring (8) is located directly below and in direct communication with the injection channel (70) in the injection nozzle (7).

7. The novel liquid injection tool according to claim 6, wherein The annular rubber ring (8) is in the shape of a circular ring.

8. The novel liquid injection tool according to claim 6, wherein The annular rubber ring (8) at the bottom of the injection nozzle (7) is used for downwardly extruding the top peripheral edge of the injection port (90) provided at the top of the object to be injected (9). The center through hole of the annular rubber ring (8) is located directly above and communicates with the liquid injection port of the object to be injected (9).

9. The novel liquid injection tooling of any one of claims 1 to 8, wherein, The bottom of the liquid injection nozzle fixing plate (6) is provided with three liquid injection nozzles (7). The three liquid injection nozzles (7) include one first liquid injection nozzle and two second liquid injection nozzles. The first liquid injection nozzle is located directly below the piston rod of the liquid injection nozzle pressing driving cylinder (5). The two second liquid injection nozzles are located on the left and right sides of the first liquid injection nozzle and are symmetrically distributed.

10. The novel liquid injection tool according to claim 9, wherein, The first liquid injection nozzle and the piston rod of the liquid injection nozzle pressing driving cylinder (5) are located on the same center axis.

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