Vinylene carbonate concentration regulation and control structure

Abstract

The utility model belongs to the technical field of lithium ion batteries, particularly relates to a vinylene carbonate concentration regulation and control structure, and provides the following scheme aiming at the problem of low regulation and control efficiency of the existing vinylene carbonate concentration regulation and control structure: the vinylene carbonate concentration regulation and control structure comprises a shell; the pressing device is arranged on the shell; the number of the buckle devices is two, the two buckle devices are arranged on the two sides of the pressing device correspondingly, and the buckle devices are used for limiting the pressing plate; the number of the spring devices is two, and the two spring devices are both arranged on the pressing device; the solution storage device is arranged on one side of the two spring devices, and the solution storage device is used for storing vinylene carbonate liquid; the sealing device is arranged on one side of the solution storage device; the battery device is arranged on one side of the sealing device; according to the utility model, the regulation efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of lithium ion batteries, in particular to a vinylene carbonate concentration regulation structure. BACKGROUND

[0002] The vinylene carbonate concentration regulation structure can control the concentration / total amount of vinylene carbonate that can participate in electrochemical reactions in the battery within the whole life cycle at an optimal level, thereby prolonging the service life of the lithium battery.

[0003] The patent document with the publication number CN219998305U discloses a vinylene carbonate concentration regulation structure, which comprises a vinylene carbonate supplement assembly arranged in the gaps between the protective shell and the winding core and capable of supplementing vinylene carbonate when the concentration of vinylene carbonate in the electrolyte of the lithium battery decreases. The vinylene carbonate concentration regulation structure can regulate the concentration of vinylene carbonate within the whole life cycle to slow down the aging and capacity attenuation of the battery, and has high process feasibility.

[0004] However, the existing vinylene carbonate concentration regulation structure has the problem of low regulation efficiency. Therefore, a vinylene carbonate concentration regulation structure is provided. CONTENT OF THE UTILITY MODEL

[0005] In order to improve the problem of low regulation efficiency of the existing vinylene carbonate concentration regulation structure, the application provides a vinylene carbonate concentration regulation structure.

[0006] The vinylene carbonate concentration regulation structure provided by the application adopts the following technical scheme:

[0007] A vinylene carbonate concentration regulation structure comprises:

[0008] A shell;

[0009] A pressing device arranged on the shell;

[0010] Two buckle devices arranged on the two sides of the pressing device;

[0011] Two spring devices arranged on the pressing device;

[0012] A solution storage device arranged on one side of the two spring devices;

[0013] A sealing device arranged on one side of the solution storage device;

[0014] A battery device arranged on one side of the sealing device.

[0015] Further, the pressing device comprises a pressing plate and a protrusion, the pressing plate is fixedly connected with the protrusion, a first opening is formed on the shell, and the pressing plate is slidably connected with the first opening.

[0016] Further, the buckle device comprises a buckle, a clamping groove is formed on the shell, the pressing plate is rotatably connected with the buckle, and the buckle is matched with the clamping groove, so that the buckle device is used for limiting the pressing plate.

[0017] Further, the spring device comprises a spring, a round rod and a cylinder, the round rod and the spring are fixedly connected with the pressing plate, the round rod is slidably connected with the cylinder, and the cylinder is fixedly connected with the inner shell, so that the spring device is used for driving the pressing plate to reset.

[0018] Further, the solution storage device comprises a storage bag and a plurality of blades, the plurality of blades are fixedly connected with the storage bag, and the solution storage device is used for storing the vinylene carbonate liquid.

[0019] Further, the sealing device comprises a negative electrode, an inner shell and a sealing film, the negative electrode is fixedly connected with the inner shell, a second opening is formed on the inner shell, and the second opening is fixedly connected with the sealing film.

[0020] Further, the battery device comprises a positive electrode and a winding core, two ends of the winding core are fixedly connected with the positive electrode and the negative electrode respectively, and a plurality of grooves are formed on the winding core.

[0021] In summary, the present application has at least one of the following beneficial technical effects:

[0022] 1. By pressing the pressing plate, the pressing plate drives the protrusion, the protrusion drives the storage bag and the plurality of blades to move, the plurality of blades cut the sealing film, the vinylene carbonate flows to the inner shell, the vinylene carbonate in the winding core and the inner shell is supplemented, and the lithium battery is kept in normal use.

[0023] 2. The plurality of grooves formed on the winding core can make the vinylene carbonate flow quickly and fully contact with the winding core. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure in the first embodiment of the present application;

[0025] Figure 2 is a schematic diagram of the internal structure in the first embodiment of the present application;

[0026] Figure 3 is a schematic diagram of the connection structure of the solution storage device and the sealing device in the first embodiment of the present application;

[0027] Figure 4 is a schematic diagram of the connection structure of the battery device and the sealing device in the first embodiment of the present application;

[0028] Figure 5 is a schematic view of the push plate and two buckle connection structures in embodiment one of the present application.

[0029] Reference signs: 1, shell; 2, push plate; 3, buckle; 4, first opening; 5, clamping groove; 6, storage bag; 7, cylinder; 8, round rod; 9, blade; 10, positive electrode; 11, negative electrode; 12, second opening; 13, sealing film; 14, inner shell; 15, roll core; 16, recess; 17, protrusion; 18, spring. DETAILED DESCRIPTION

[0030] Embodiment one

[0031] The following will be described in detail in combination with the accompanying Figures 1-5 Embodiment one in the present application will be further described in detail.

[0032] The installation mode of the vinylene carbonate concentration regulation structure refers to Figure 1 , comprising:

[0033] The shell 1;

[0034] The push device is arranged on the shell 1;

[0035] The buckle device is provided with two, and the two buckle devices are arranged on the two sides of the push device;

[0036] The spring device is provided with two, and the two spring devices are arranged on the push device;

[0037] The solution storage device is arranged on one side of the two spring devices;

[0038] The sealing device is arranged on one side of the solution storage device;

[0039] The battery device is arranged on one side of the sealing device.

[0040] Referring to Figures 2-5 , the push device includes the push plate 2 and the protrusion 17, the push plate 2 is fixedly connected with the protrusion 17, the first opening 4 is arranged on the shell 1, and the push plate 2 is slidably connected with the first opening 4;

[0041] The buckle device includes the buckle 3, the clamping groove 5 is arranged on the shell 1, the push plate 2 is rotatably connected with the buckle 3, the buckle 3 is matched with the clamping groove 5, and the buckle device is used for limiting the push plate 2;

[0042] The spring device comprises a spring 18, a round rod 8 and a cylinder 7, the round rod 8 and the spring 18 are fixedly connected with the pressing plate 2, the round rod 8 is in sliding connection with the cylinder 7, the cylinder 7 is fixedly connected on the inner shell 14, and the spring device is used for driving the pressing plate 2 to reset;

[0043] The solution storage device comprises a storage bag 6 and a plurality of blades 9, the plurality of blades 9 are fixedly connected with the storage bag 6, and the solution storage device is used for storing the vinylene carbonate liquid;

[0044] The sealing device comprises the negative electrode 11, the inner shell 14 and a sealing film 13, the negative electrode 11 is fixedly connected with the inner shell 14, the inner shell 14 is provided with a second opening 12, and the second opening 12 is fixedly connected with the sealing film 13;

[0045] The battery device comprises the positive electrode 10 and a winding core 15, two ends of the winding core 15 are fixedly connected with the positive electrode 10 and the negative electrode 11 respectively, and a plurality of grooves 16 are formed in the winding core 15.

[0046] The implementation principle of the vinylene carbonate concentration regulating structure in the embodiment of the application is as follows: when the vinylene carbonate in the battery is insufficient, the two buckles 3 are rotated, the cooperation between the two buckles 3 and the two clamping grooves 5 is cancelled, the pressing plate 2 is pressed, the pressing plate 2 drives the protruding block 17, the protruding block 17 drives the storage bag 6 and the plurality of blades 9 to move, the plurality of blades 9 cut the sealing film 13, the vinylene carbonate flows into the inner shell 14, the vinylene carbonate which is insufficient in the winding core 15 and the inner shell 14 is supplemented, and thus the normal use of the lithium battery is maintained.

[0047] Embodiment two

[0048] The difference between the embodiment and the embodiment one is that a plurality of holes are formed in the inner shell 14, so that the flow of the vinylene carbonate is accelerated, and thus the vinylene carbonate is fully contacted with the winding core 15.

[0049] The above are preferable embodiments of the application, and do not limit the protection scope of the application, so that: equivalent changes made according to the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. A vinylene carbonate concentration regulating structure, characterized by: The utility model relates to a portable electronic device, including: The shell (1); Push device, push device is located on the shell (1); Buckle device, buckle device is provided with two, two buckle devices are located on the both sides of push device respectively; Spring device, spring device is provided with two, two spring devices are all located on push device; Solution storage device, solution storage device is located on one side of two spring devices; Sealing device, sealing device is located on one side of solution storage device; Battery device, battery device is located on one side of sealing device.

2. The vinylene carbonate concentration regulating structure of claim 1, wherein: The push device includes push plate (2) and lug (17), push plate (2) is fixedly connected with lug (17), first opening (4) is set up on the shell (1), push plate (2) is slidably connected with first opening (4).

3. The vinylene carbonate concentration regulating structure of claim 2, wherein: The buckle device includes buckle (3), the shell (1) is set up with the card slot (5), push plate (2) is rotatably connected with buckle (3), buckle (3) is matched with card slot (5), and buckle device is used to limit push plate (2) work.

4. The vinylene carbonate concentration regulating structure of claim 3, wherein: The spring device includes spring (18), round bar (8) and cylinder (7), round bar (8) and spring (18) are all fixedly connected with push plate (2), round bar (8) is slidably connected with cylinder (7), cylinder (7) is fixedly connected on inner shell (14), and spring device is used to drive push plate (2) reset work.

5. The vinylene carbonate concentration regulating structure of claim 4, wherein: The solution storage device includes storage bag (6) and multiple blades (9), multiple blades (9) are all fixedly connected with storage bag (6), and solution storage device is used to store vinylene carbonate liquid.

6. The vinylene carbonate concentration regulating structure of claim 5, wherein: The sealing device includes negative pole (11), inner shell (14) and sealing film (13), negative pole (11) is fixedly connected with inner shell (14), second opening (12) is set up on the inner shell (14), and second opening (12) is fixedly connected with sealing film (13).

7. The vinylene carbonate concentration regulating structure of claim 6, wherein: The battery device includes positive pole (10) and roll core (15), both ends of roll core (15) are fixedly connected with positive pole (10) and negative pole (11) respectively, and multiple recesses (16) are set up on roll core (15).

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