Air sealing tool for negative pressure formation

Abstract

The utility model belongs to the technical field of battery tools, and particularly relates to an air-tight sealing tool for negative pressure formation, which comprises a tool body, an air-tight sealing ring, an air-tight sealing ring, an air-tight sealing ring, an air-tight sealing ring, an air-tight sealing ring, an air-tight sealing ring, an air-tight sealing ring and an air-tight sealing ring, wherein the notch of the groove is suitable for being attached to a battery cell group to form a sealed cavity; when the groove is attached to the battery cell group, the suction nozzles are attached to the liquid injection openings of the corresponding battery cells, in the using process of the air-tight sealing tool for negative pressure formation, the groove opening of the tool body is attached to the battery cell group, so that the groove forms a sealed cavity, and even if the suction nozzles and the liquid injection openings deviate, the air-tight sealing tool for negative pressure formation can be used for sealing the battery cells. And negative pressure leakage of the tool body cannot be caused.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery tooling, and in particular relates to a gas sealing tooling for negative pressure formation. Background Art

[0002] In the production process of lithium batteries, a negative pressure formation cabinet is required.

[0003] During the use of the negative pressure forming cabinet, the negative pressure suction nozzle needs to be attached to the liquid injection port of the battery cell to evacuate the inside of the battery cell. However, in the existing negative pressure forming cabinet, one storage position normally has 24-48 suction nozzles that move, dock, and pump negative pressure at the same time. When one of the suction nozzles is offset from the liquid injection port of the battery cell, the suction nozzles in the entire storage position will also be offset, causing the negative pressure of the entire storage position to leak.

[0004] Therefore, how to prevent leakage of the negative pressure forming cabinet during negative pressure operation is a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] In order to solve the technical problems mentioned in the background technology, the utility model provides a gas-sealed tool for negative pressure formation, which includes: a tool body, one side of which is provided with a groove, and a plurality of suction nozzles are arranged in the groove; wherein the notch of the groove is suitable for fitting with a battery cell group to form a sealed chamber; and when the groove fits with the battery cell group, each of the suction nozzles fits with the liquid injection port of the corresponding battery cell.

[0006] In one embodiment, the tool body includes: a plurality of fixture units; wherein the fixture units are provided with mounting grooves; and the notches of the mounting grooves are suitable for fitting with the end covers of the corresponding battery cells to form a sealed chamber.

[0007] In one embodiment, each of the suction nozzles is disposed in a corresponding mounting groove.

[0008] In one embodiment, a vacuum port is provided at the bottom of the installation slot; an inner pipe opening of the vacuum port is connected to the suction nozzle, and an outer pipe opening is connected to a negative pressure pipe.

[0009] In one embodiment, a sealing ring is provided at the notch of the installation groove.

[0010] In one embodiment, the notch of the mounting slot is adapted to the end cover of the battery cell.

[0011] In one embodiment, an annular groove is provided on the end surface of the suction nozzle.

[0012] In one embodiment, the annular groove is adapted to the liquid injection port of the battery cell.

[0013] In one embodiment, at least one probe is disposed in the mounting groove.

[0014] In one embodiment, the connector of the probe is located at the back of the mounting slot.

[0015] The beneficial effect of the utility model is that during use, the groove notch of the tool body will fit with the battery cell group, so that the groove forms a sealed chamber, so that even if the suction nozzle and the liquid injection port are offset, it will not cause negative pressure leakage of the tool body.

[0016] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure of the gas sealing tool for negative pressure formation;

[0020] Figure 2 It is a structural schematic diagram of the clamp monomer;

[0021] Figure 3 It is a structural schematic diagram of the vacuum port;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure when the fixture unit is bonded to the corresponding battery cell.

[0023] In the figure:

[0024] Tool body 1, groove 10, fixture unit 11, mounting groove 12, vacuum port 13, sealing ring 14;

[0025] Suction nozzle 2, annular groove 21;

[0026] Battery core 31, liquid injection port 32, end cover 33;

[0027] Probe 4 connector 41;

[0028] Negative pressure pipe 5. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figure 1 As shown, at least one embodiment provides a gas-sealed tool for negative pressure formation, which includes: a tool body 1, one side of which is provided with a groove 10, and a plurality of suction nozzles 2 are arranged in the groove 10; wherein the notch of the groove 10 is suitable for fitting with a battery cell group to form a sealed chamber; and when the groove 10 fits with the battery cell group, each of the suction nozzles 2 fits with the liquid injection port 32 of the corresponding battery cell 31.

[0031] In some embodiments, during use, the tool body 1 will fit the notch of its groove 10 with the battery cell group, so that the groove 10 forms a sealed chamber, so that even if some of the suction nozzles 2 and the corresponding injection ports 32 are offset, it will not cause negative pressure leakage in the tool body 1.

[0032] like Figure 2 As shown, in some embodiments, since the battery cell group is composed of a plurality of battery cells 31, when negative pressure forming is performed, negative pressure forming will be performed on a plurality of battery cells 31 at the same time, so the tooling body 1 includes: a plurality of fixture units 11, corresponding to each battery cell 31 respectively; wherein a mounting groove 12 is provided on the fixture unit 11; and the notch of the mounting groove 12 is suitable for fitting with the end cover 33 of the corresponding battery cell 31 to form a sealed chamber.

[0033] In some embodiments, each of the suction nozzles 2 is disposed in a corresponding mounting groove 12 .

[0034] like Figure 3 , Figure 4 As shown, in some embodiments, a vacuum port 13 is opened at the bottom of the installation groove 12; the inner pipe opening of the vacuum port 13 is connected to the suction nozzle 2, and the outer pipe opening is connected to the negative pressure pipe 5; this design can facilitate the installation groove 12 to form a sealed chamber.

[0035] In some embodiments, in order to improve the sealing performance of the installation groove 12 , a sealing ring 14 is provided on the groove opening of the installation groove 12 .

[0036] In some embodiments, the notch of the mounting groove 12 is matched with the end cover 33 of the battery cell 31 , that is, the sealing ring 14 also needs to be matched with the notch of the mounting groove 12 .

[0037] In some embodiments, an annular groove 21 is provided on the end surface of the suction nozzle 2; the annular groove 21 is adapted to the liquid injection port 32 of the battery cell 31; the suction nozzle 2 is provided with the annular groove 21 to facilitate the suction nozzle 2 and the liquid injection port 32 to be docked and fitted.

[0038] In some embodiments, at least one probe 4 is disposed in the mounting groove 12 .

[0039] In some embodiments, the connector 41 of the probe 4 is located at the back of the mounting groove 12 .

[0040] In some embodiments, the robot fits the tooling body 1 with the battery cell group to be negatively pressurized so that a sealed chamber is formed between the tooling body 1 and the battery cell group. During the fitting, each suction nozzle 2 located in the sealed chamber is also fitted with the injection port 32 of the corresponding battery cell 31 through the annular groove 21. In this way, even if one of the suction nozzles 2 is not properly docked, it will not cause negative pressure leakage of the tooling body 1.

[0041] In summary, during use of the negative pressure gas-sealed tooling, the groove 10 of the tooling body 1 will fit with the battery cell assembly, so that the groove 10 forms a sealed chamber, so that even if the suction nozzle 2 and the liquid injection port 32 are offset, it will not cause negative pressure leakage of the tooling body 1.

[0042] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0043] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0045] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A gas sealing tool for negative pressure formation, characterized in that: include: A tool body (1) has a groove (10) formed on one side thereof, and a plurality of suction nozzles (2) are arranged in the groove (10); in The notch of the groove (10) is suitable for fitting with the battery cell group to form a sealed chamber; and When the groove (10) fits with the battery cell group, each of the suction nozzles (2) fits with the liquid injection port (32) of the corresponding battery cell (31).

2. The negative pressure gas sealing tool for chemical formation according to claim 1, characterized in that: The tool body (1) comprises: a plurality of fixture units (11); The clamp unit (11) is provided with a mounting groove (12); The notch of the installation groove (12) is suitable for fitting with the end cover (33) of the corresponding battery cell (31) to form a sealed chamber.

3. The negative pressure forming gas sealing tool as claimed in claim 2, characterized in that: Each of the suction nozzles (2) is arranged in a corresponding installation groove (12).

4. The negative pressure chemical forming gas sealing tool as claimed in claim 2, characterized in that: The bottom of the installation groove (12) is provided with a vacuum port (13); The inner pipe opening of the vacuum port (13) is connected to the suction nozzle (2), and the outer pipe opening is connected to the negative pressure pipeline (5).

5. The negative pressure chemical forming gas sealing tool as claimed in claim 2, characterized in that: The notch of the installation groove (12) is provided with a sealing ring (14).

6. The negative pressure forming gas sealing tool as claimed in claim 2, characterized in that: The notch of the installation groove (12) is adapted to fit the end cover (33) of the battery cell (31).

7. The negative pressure chemical forming gas sealing tool as claimed in claim 1, characterized in that: An annular groove (21) is provided on the end surface of the suction nozzle (2).

8. The negative pressure chemical forming gas sealing tool as claimed in claim 7, characterized in that: The annular groove (21) is adapted to fit the liquid injection port (32) of the battery cell (31).

9. The negative pressure chemical forming gas sealing tool as claimed in claim 2, characterized in that: At least one probe (4) is arranged in the installation groove (12).

10. The negative pressure chemical forming gas sealing tool as claimed in claim 9, characterized in that: The connector (41) of the probe (4) is located on the back side of the mounting groove (12).

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