CN220731750U - Simple tool for integrating electrolyte injection and negative pressure formation of battery cell of blade - Google Patents

Abstract

The utility model discloses a simple tool integrating liquid injection and negative pressure formation of a battery cell of a blade, which has the advantages of simple structure, lower manufacturing cost and convenient operation, a tool support and a power supply component which are formed by a tool bottom plate, a tool side plate and a tool top plate can have two functions of liquid injection and negative pressure formation of the battery cell of the blade, namely, the simple tool can carry out liquid injection operation on the battery cell of the blade and negative pressure formation operation on the battery cell of the blade, is very suitable for trial production or small batch production of the battery cell, and meanwhile, the tool can furthest utilize a liquid injection system, a negative pressure formation system and a power supply system in the existing battery manufacturing tool, saves the cost required for manufacturing the battery cell of the blade, and solves the problem of high manufacturing cost of the battery cell of the blade caused by the fact that the existing aluminum shell battery manufacturing tool fixture can not meet the trial production requirements of the battery cell of the blade.

Description

Simple tool for integrating electrolyte injection and negative pressure formation of battery cell of blade

Technical Field

The utility model belongs to the technical field of lithium ion battery manufacturing, and particularly relates to a simple tool for integrating battery cell injection and negative pressure of a blade battery.

Background

The blade battery is a specially-made square aluminum shell lithium ion battery, the appearance structure of the blade battery is different from that of a common aluminum shell battery, positive and negative poles of the common aluminum shell battery are arranged at the top of the battery, and the positive and negative poles of the blade battery are respectively arranged at the left end and the right end of the battery, so that the conventional fixture for manufacturing the aluminum shell battery cannot meet the trial production of the blade battery, and the conventional liquid injection fixture and the negative pressure formation fixture are two different fixtures, have large structural difference and cannot be compatible in use.

Based on the above analysis, in order to meet the manufacturing requirement of the blade battery, or in order to reduce the cost of producing the blade battery by small micro-manufacturing enterprises, designing a tool capable of integrating the injection and negative pressure of the battery cell is a technical problem to be solved by the application.

Disclosure of Invention

The utility model aims to provide a simple tool for integrating liquid injection and negative pressure formation of a battery cell of a blade, which has the advantages of simple structure, lower cost and convenience in operation, has two functions of liquid injection and negative pressure formation of the battery cell of the blade, is suitable for small-batch production of the battery cell of the blade, and solves the problems existing in the prior art.

The utility model provides a simple tool for integrating liquid injection and negative pressure of a battery cell of a blade, which comprises the following components: the tool support and the power supply assembly are composed of a tool bottom plate, a tool side plate and a tool top plate; the tool bottom plate is of a square structure; the tool side plates are arranged around the tool bottom plate, each tool side plate comprises two groups of first side plates arranged along the length direction of the tool bottom plate and two groups of second side plates arranged along the width direction of the tool bottom plate, at least one side plate in the two groups of second side plates is a locking plate, and the locking plate is connected with the two groups of first side plates through a locking piece and can move along the length direction of the tool bottom plate so as to squeeze and lock the battery cells placed in the tool support; the tool top plate is detachably arranged at the top of the tool side plate, a plurality of groups of negative pressure suction nozzle assemblies are arranged on the tool top plate, and each group of negative pressure suction nozzle assemblies can be in butt joint with a battery cell liquid injection port of a corresponding battery cell arranged in the tool support; the power supply assembly comprises a clamping piece which can be clamped on the positive pole and the negative pole at two ends of the battery cell and is connected with the power supply system through a wire.

As the preferred scheme of this application, the frock roof is the whole plate structure that corresponds with frock support upper end opening size, or, the frock roof contains a plurality of, every frock roof the width with electric core width corresponds.

As the preferred scheme of this application, be located two sets of locking plate one end the tip of first curb plate is equipped with the recess that extends along its length direction, the width of locking plate is slightly less than two sets of interval between the first curb plate, simultaneously, be equipped with on this locking plate with the lug that the recess corresponds, the retaining member sets up on the recess and can fix the locking plate through the lug.

As the preferred scheme of this application, the bottom of recess has set firmly first linkage piece, the retaining member sets up on this first linkage piece.

As the preferred scheme of this application, the second connecting block has been set firmly on the top of first curb plate, is equipped with on this second connecting block and is used for carrying out fixed stay's regulation pole to the frock roof.

As the preferred scheme of this application, be equipped with the quick assembly disassembly hole that corresponds with regulation pole and screw rod on frock roof and the locking board respectively, this quick assembly disassembly hole is U type structure and/or calabash type structure.

As the preferable scheme of this application, be equipped with the baffle in the frock support, this baffle can separate two adjacent electric cores.

As the preferential scheme of this application, be connected with the tab on the positive pole of electric core, negative pole post respectively, the holder centre gripping is on this tab.

As the preferred scheme of this application, all be equipped with on frock roof and the frock bottom plate and dodge the chamber, should dodge the chamber and be any one of slot-like structure or through-hole structure.

As the preferable scheme of this application, the bottom of frock support is equipped with supporting mechanism and/or running gear.

This simple and easy frock of this application's advantage lies in:

the simple tool is simple in structure, low in manufacturing cost and convenient to operate, can have two functions of liquid injection and negative pressure formation of the battery core of the blade battery, namely, the simple tool can perform liquid injection operation on the battery core of the blade battery and negative pressure formation operation on the blade battery, is suitable for trial production or small-batch production of the blade battery, and meanwhile, the tool can furthest utilize a liquid injection system, a negative pressure formation system and a power supply system in the existing battery manufacturing tool, so that the required cost for manufacturing the blade battery is saved, and the problem that the manufacturing cost of the blade battery is high because the existing aluminum shell battery manufacturing tool cannot meet the manufacturing requirement of the blade battery is solved.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a simple tool integrating liquid injection and negative pressure into a whole for a battery cell of a blade battery provided by the embodiment of the utility model.

Fig. 2 is a schematic diagram of an overall structure of another view angle of a simple tool for integrating liquid injection and negative pressure into a whole for a battery cell of a blade battery according to an embodiment of the present utility model.

Fig. 3 is a schematic diagram of the overall structure of the bottom view angle of the simple tool integrating the liquid injection and negative pressure of the battery cell of the blade battery provided by the embodiment of the utility model.

Fig. 4 is a schematic structural diagram of a butt joint of a negative pressure suction nozzle assembly and a battery cell liquid injection port on a tooling top plate according to an embodiment of the present utility model.

Fig. 5 is a schematic structural diagram of a fixture top plate fixed by an adjusting rod according to an embodiment of the present utility model

Fig. 6 is a schematic diagram of a connection structure between a clamping member and a battery cell according to an embodiment of the present utility model.

Fig. 7 is a schematic structural diagram of a tooling top plate according to an embodiment of the present utility model.

Fig. 8 is a schematic structural diagram of a partition board disposed in a tooling support according to an embodiment of the present utility model.

Fig. 9 is a schematic top view of a simple tool for integrating injection and negative pressure into a whole for a battery cell of a blade battery according to an embodiment of the present utility model.

Fig. 10 is a schematic structural diagram of a locking plate connected to a first side plate through a locking member according to an embodiment of the present utility model.

Reference numerals

Tool support 1, tool bottom plate 2, first side plate 3, recess 31, first connecting block 32, second connecting block 33, second side plate 4, lug 41, tool top plate 5, negative pressure suction nozzle assembly 6, suction pipe 61, suction nozzle 62, retaining member 7, clamping member 8, dodge hole 9, quick assembly disassembly hole 10, baffle 11, electric core 12, positive and negative pole post 121, tab 13, supporting mechanism 14, wire 15, electrical power generating system 16, trachea 17, handle 18, fixed orifices 19, regulation pole 20.

Detailed Description

The utility model will now be described in further detail with reference to the following detailed description and with reference to the accompanying drawings, it being emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the utility model and its application.

As shown in fig. 1-3, a simple tool for integrating injection and negative pressure into a whole for a battery cell of a blade battery provided in this embodiment includes a tool support 1 and a power supply assembly, which are composed of a tool bottom plate 2, a tool side plate and a tool top plate 5.

The tool bottom plate 2 is of a square structure, and can be specifically selected according to the required capacity of the tool support 1, the implementation is preferably of a rectangular structure, and at least 12 electric cores 12 can be placed in the tool support 1 formed by the rectangular tool bottom plate 2; the frock curb plate is installed around frock bottom plate 2, and this frock curb plate contains two sets of first curb plates 3 that lay along frock bottom plate 2 length direction and two sets of second curb plates 4 that lay along frock bottom plate 2 width direction, at least one curb plate is the locking plate in two sets of second curb plates 4, this locking plate is through retaining member 7 and the corresponding end connection of two sets of first curb plates 3 and can follow the length direction of frock bottom plate 2 and remove in order to extrude locking to placing the electric core 12 in frock support 1, through the adjustable locking plate of adjusting retaining member 7 to the extrusion degree of electric core 12, apply certain pressure for every electric core 12, apply the main aim at of this pressure: first, prevent the battery cell 12 shell from swelling after the battery cell 12 is negative-pressure formed; secondly, the battery is facilitated to be rapidly exhausted in the negative pressure formation process; thirdly, the swelling of the shell of the battery cell 12 after the battery cell is injected with the liquid is prevented; in this embodiment, it can be understood that the locking plate is a moving plate, and the width of the second side plate 4 at least serving as the locking plate is smaller than the distance between the two groups of first side plates 3, so that the locking plate can move conveniently to implement extrusion operation on the battery core 12, and the two groups of first side plates 3 and the other group of second side plates 4 are both fixing plates, and when in installation, a plurality of groups of fixing holes 19 can be formed in the tool bottom plate 2, and the two groups of first side plates 3 and the other group of second side plates 4 are fixed on the tool bottom plate 2 through fixing pieces such as bolts, so that the stability of the tool bracket 1 can be ensured; the tool top plate 5 is detachably mounted on the top of the tool side plate, a plurality of groups of negative pressure suction nozzle assemblies 6 are arranged on the tool top plate 5, each group of negative pressure suction nozzle assemblies 6 can be in butt joint with a battery cell liquid injection port of a corresponding battery cell 12 mounted in the tool support 1, as shown in fig. 4, in the embodiment, the negative pressure suction nozzle assemblies 6 comprise suction nozzles 62 positioned at the lower end side of the tool top plate 5 and suction pipes 61 connected with the suction nozzles 62, the suction pipes 61 extend to the upper end of the tool top plate 5, the suction pipes 61 can be connected with a liquid injection cup or a negative pressure cup through air pipes 17 to perform liquid injection operation or negative pressure formation operation, and it can be understood that as the suction nozzles 62 are positioned at the lower end of the tool top plate 5, a certain distance exists between the tool top plate 5 and the top ends of the first side plate 3 and the second side plate 4, in the embodiment, a second connecting block 33 is preferably fixedly arranged at the top end of the first side plate 3, the adjusting rod 20 is provided with a threaded screw rod or a bolt driving a locking nut for fixedly supporting the tool top plate 5, the adjusting rod 20 can be used for rapidly adjusting the position of the tool top plate 5 from the first side plate 3 and the second side plate 4 to the position of the negative pressure assembly 6 in a designated negative pressure interval, as shown in the figure can be conveniently regulated; in this embodiment, for convenience in clamping, a tab 13, preferably an L-shaped aluminum sheet or a copper sheet, is welded on the positive and negative electrode posts 121 of the electric core 12 respectively, the tab 13 is welded on the electrode posts 121 of the electric core 12 by laser welding, which is equivalent to extending the electrode posts 121, so that the clamping piece 8 is convenient to clamp and connect with the electrode posts 121 of the electric core 12, the clamping piece 8 is clamped on the tab 13, specifically, the current negative pressure is converted into the current negative pressure through a current wire and a voltage acquisition wire to be communicated with the clamping piece 8, and the clamping piece 8 is connected with the electrode posts 121 of the electric core 12 through the tab 13, wherein the clamping piece 8 connected with the voltage acquisition wire is preferably welded on one end of the tab 13 close to the electrode posts 121, the current wire 8 is preferably welded on one end of the electrode posts 121 by laser welding, the current wire 8 is conveniently clamped on the tab 13, the current collecting wire is conveniently clamped on the tab 13, and other current collecting wire 8 is preferably clamped on the electrode posts 121, and other current collecting wire 8 is preferably clamped on the other end of the current collecting wire 8, which can be prevented from interfering with the current collecting electrode posts 8.

In this embodiment, the locking member 7 is a screw or a pin, and the screw is fixedly disposed at the end or the surface of the first side plate 3, and since in this embodiment, the locking plate may be located inside the tool support 1 after extrusion is completed, a plurality of positioning lock holes may be disposed on the surfaces of the locking plate and the first side surface.

In this embodiment, the tool bottom plate 2 and the tool top plate 5 are made of non-metal materials, so that the external short circuit of the battery cell 12 can be prevented, and the safety of tool use is improved.

In this embodiment, the handles 18 are mounted on the first side plates 3 located on the left and right groups of the tool support 1, so that the tools can be conveniently carried by staff.

Preferably, in this embodiment, the tooling top plate 5 is provided with a quick assembly disassembly hole 10 corresponding to the adjusting rod 20, the quick assembly disassembly hole 10 is of a U-shaped structure and/or a gourd-shaped structure, and the side locking plate has a quick assembly disassembly function by using the quick assembly disassembly hole 10, so that the rapidness of assembly disassembly of the tooling can be improved, and the time for placing the battery by staff is saved.

Preferably, in the present embodiment, a partition 11 is disposed in the tool support 1, and the partition 11 may separate two adjacent cells 12, and the partition is a non-fixed structure, which is clamped between the two adjacent cells 12, as shown in fig. 8.

Before the use of this embodiment, the battery 12 needs to be installed, specifically:

the locking plate and the tooling top plate 5 on the tooling support 1 are detached firstly, then the battery cells 12 are placed in the tooling support 1 from the top end opening or the side opening of the tooling support 1, a partition plate is additionally arranged between two adjacent battery cells 12 until the installation of the battery cells 12 is completed, at the moment, the locking plate is firstly installed at a corresponding position, the locking plate is pushed to move towards the inner side of the tooling support 1 until the extrusion force of the required battery cells 12 is met, then the locking plate is fixed through the locking piece 7, then the tooling top plate 5 is installed, each tooling top plate 5 is sheathed on the adjusting rod 20 through the quick dismounting holes 10 on the locking plate, the negative pressure suction nozzle assemblies 6 on the adjusting rod are adjusted to be aligned with the battery cell liquid injection openings, and after the alignment, the tooling top plate 5 is fixed through the adjusting rod 20 until the installation of all the tooling top plates 5 is completed.

In the liquid injection process, the negative pressure suction nozzle assembly 6 is connected with a liquid injection cup of the original liquid injection system by adopting an air pipe 17, and the operation of injecting electrolyte into the battery cell 12 can be implemented after checking and confirming that the air tightness of the whole system meets the requirement.

In the negative pressure formation process, the tabs 13 are welded on the positive and negative poles 121 of the battery 12 in advance, the existing current wire and voltage acquisition wire are utilized to connect the power supply system 16 and the copper clips, the copper clips are clamped on the tabs 13 corresponding to the poles 121, and the copper clips connected with the voltage acquisition wire are clamped on one side of the tabs 13 close to the poles 121, and the copper clips connected with the current wire are clamped on one side of the tabs 13 far from the poles 121, so that the interference of heavy current on battery voltage acquisition is prevented; and then the negative pressure suction nozzle assembly 6 is connected to a negative pressure cup of the formation negative pressure system through an air pipe 17, and the negative pressure formation process can be started to perform charge and discharge operations on the blade battery after all the connection is completed.

In this embodiment, the tabs 13 may be ground off by a grinder after the operation is completed.

It can be seen that, this simple tool of this embodiment simple structure, manufacturing cost is lower, convenient operation, can have both the blade battery cell annotate liquid and the negative pressure becomes two kinds of functions, that is, this simple tool can carry out annotating liquid operation to the electric core 12 of blade battery, can carry out the negative pressure again and become the operation to the blade battery, be applicable to blade battery test-making or for small batch production very much, simultaneously, this frock can furthest utilize annotating liquid system in the current battery manufacturing frock, negative pressure becomes system and electrical power generating system 16, blade battery manufacturing required expense has been saved, the problem that blade battery manufacturing cost is high because of current aluminium hull battery manufacturing frock clamp can't satisfy blade battery test-making requirement has been solved.

Preferably, in the present embodiment, the tool top plate 5 and the tool bottom plate 2 are both provided with the avoidance cavity 9, and the avoidance cavity 9 is any one of a groove-shaped structure or a through hole structure, as shown in fig. 3, 4 and 7, since the positive electrode post 121 and the negative electrode post 121 of the blade battery are positioned at two ends of the electric core 12, the extrusion damage of the tool top plate 5 and the tool bottom plate 2 to the electrode post 121 and the explosion-proof valve can be avoided by utilizing the avoidance cavity 9, and the normal installation of the electric core 12 is ensured; in this embodiment, it is preferable that the avoiding cavity 9 located on the tool bottom plate 2 and the tool top plate 5 is a through hole structure for facilitating the clamping of the clamping piece 8 and the bar 13, so that the bar 13 is leaked out, and the clamping piece 8 is convenient to be clamped and connected with the clamping piece, however, in other embodiments of the application, in order to improve the safety performance of the tool, the through hole of the tool top plate 5 is at least set to be a groove-shaped structure, so that the bar 13 is not leaked out, but the structure is inconvenient for the connection of the clamping piece 8 and the bar 13.

Preferably, in the present embodiment, the structure of the tooling top plate 5 includes at least two structures, one is a whole plate structure corresponding to the size of the opening at the upper end of the tooling support 1, and the whole plate structure is convenient to install, but because the number of the negative pressure suction nozzle assemblies 6 is large, multiple corrections are required to ensure that the negative pressure suction nozzle assemblies 6 are in butt joint with the battery cell liquid injection ports of the corresponding battery cells 12; the other is that the tool bottom plate 2 comprises a plurality of tool bottom plates, the width of each tool top plate 5 corresponds to the width of the battery cell 12, as shown in fig. 9, the tool top plates 5 can be mounted on the corresponding adjusting rods 20 successively, and as each group of negative pressure suction nozzle assemblies 6 corresponds to an independent tool top plate 5, the butt joint is faster and more accurate.

Preferably, in this embodiment, the bottom of the tool support 1 is provided with a supporting mechanism 14 and/or a travelling mechanism, which can be specifically set as required, if portable movement is required, the travelling mechanism can be optionally provided, if movement is not required after fixing, in order to ensure the stability of the tool, the supporting mechanism 14 can be optionally provided, and of course, the supporting mechanism 14 and the travelling mechanism can be optionally provided at the same time without considering the cost.

As a preferred embodiment of the present application, this embodiment provides a simple tool for integrating injection and negative pressure of a battery cell of a blade, unlike the above embodiment, in order to facilitate movement and locking of a locking plate, in this embodiment, a groove 31 extending along a length direction of two sets of first side plates 3 located at one end of the locking plate is provided at an end portion of the locking plate, a width of the locking plate is slightly smaller than a space between the two sets of first side plates 3, meanwhile, a lug 41 corresponding to the groove 31 is provided on the locking plate, a locking member 7 is provided on the groove 31 and can fix the locking plate by the lug 41, in this embodiment, a first connecting block 32 is preferably provided at a bottom end of the groove 31, and the locking member 7 is provided on the first connecting block 32, and in this embodiment, the locking member 7 is a screw with a locking nut, as shown in fig. 10.

In this embodiment, a quick assembly disassembly hole 10 is also provided on the locking plate, and the quick assembly disassembly hole 10 can be sleeved on the screw.

When the electric core 12 is used, the locking plate is sleeved on the screw rod through the quick assembly disassembly hole 10, and is pushed to move to the bottom end position of the groove 31 until the extrusion force of the required electric core 12 is met, and then the locking plate is fixed at the current position through the locking nut.

This structure of this embodiment makes things convenient for the removal and the fixed of locking plate, can improve the dismouting efficiency of locking plate.

The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications can be made by those skilled in the art without departing from the scope of the utility model, which is also to be considered as the scope of the utility model, and which does not affect the effect of the utility model and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (10)

1. The simple tool for integrating the liquid injection and the negative pressure of the battery cell of the blade is characterized by comprising a tool support (1) and a power supply assembly, wherein the tool support (1) consists of a tool bottom plate (2), a tool side plate and a tool top plate (5); the tool bottom plate (2) is of a square structure; the tool side plates are arranged around the tool bottom plate (2), each tool side plate comprises two groups of first side plates (3) which are arranged along the length direction of the tool bottom plate (2) and two groups of second side plates (4) which are arranged along the width direction of the tool bottom plate (2), at least one side plate in the two groups of second side plates (4) is a locking plate, and the locking plate is connected with the two groups of first side plates (3) through a locking piece (7) and can move along the length direction of the tool bottom plate (2) so as to squeeze and lock the battery cells (12) placed in the tool support (1); the tool top plate (5) is detachably arranged at the top of the tool side plate, a plurality of groups of negative pressure suction nozzle assemblies (6) are arranged on the tool top plate (5), and each group of negative pressure suction nozzle assemblies (6) can be in butt joint with a battery cell liquid injection port of a corresponding battery cell (12) arranged in the tool support (1); the power supply assembly comprises a clamping piece (8), wherein the clamping piece (8) can be clamped on positive and negative poles (121) at two ends of the battery cell (12) and is connected with a power supply system (16) through a lead (15).

2. The simple tool for integrating liquid injection and negative pressure of battery cells of blade batteries according to claim 1, wherein the tool top plate (5) is of a whole plate structure corresponding to the size of an opening at the upper end of the tool support (1), or the tool top plate (5) comprises a plurality of tool top plates, and the width of each tool top plate (5) corresponds to the width of the battery cell (12).

3. The simple tool for integrating liquid injection and negative pressure formation of the battery cell of the blade according to claim 1, wherein the end parts of the two groups of first side plates (3) positioned at one end of the locking plate are provided with grooves (31) extending along the length direction of the two groups of first side plates, the width of the locking plate is slightly smaller than the distance between the two groups of first side plates (3), meanwhile, the locking plate is provided with lugs (41) corresponding to the grooves (31), and the locking piece (7) is arranged on the grooves (31) and can fix the locking plate through the lugs (41).

4. A simple tool for integrating liquid injection and negative pressure formation of a blade battery cell according to claim 3, wherein a first connecting block (32) is fixedly arranged at the bottom end of the groove (31), and the locking piece (7) is arranged on the first connecting block (32).

5. The simple tool for integrating the liquid injection and the negative pressure of the blade battery cell according to claim 4, wherein a second connecting block (33) is fixedly arranged at the top end of the first side plate (3), and an adjusting rod (20) for fixedly supporting the tool top plate (5) is arranged on the second connecting block (33).

6. The simple tool for integrating the liquid injection and the negative pressure of the battery cell of the blade according to claim 5, wherein the tool top plate (5) and the locking plate are respectively provided with corresponding quick assembly disassembly holes (10), and the quick assembly disassembly holes (10) are of a U-shaped structure and/or a gourd-shaped structure.

7. The simple tool for integrating the liquid injection and the negative pressure of the battery cells of the blade battery as claimed in claim 1, wherein a partition plate (11) is arranged in the tool support (1), and the partition plate (11) can separate two adjacent battery cells (12).

8. The simple tool for integrating liquid injection and negative pressure formation of the battery cell of the blade according to claim 1, wherein the positive pole (121) and the negative pole (121) of the battery cell (12) are respectively connected with a tab (13), and the clamping piece (8) is clamped on the tab (13).

9. The simple tool for integrating liquid injection and negative pressure of the battery cell of the blade battery as claimed in claim 1, wherein the tool top plate (5) and the tool bottom plate (2) are respectively provided with an avoidance cavity (9), and the avoidance cavity (9) is of any one of a groove-shaped structure and a through hole structure.

10. The simple tool for integrating the liquid injection and the negative pressure of the battery cell of the blade according to claim 1, wherein a supporting mechanism (14) and/or a traveling mechanism are arranged at the bottom of the tool support (1).