CN211265610U

CN211265610U - Liquid injection device

Info

Publication number: CN211265610U
Application number: CN202020138025.9U
Authority: CN
Inventors: 梁桂庆; 钟年生; 胡维强
Original assignee: Super Components Engineering Dongguan Ltd
Current assignee: Super Components Engineering Dongguan Ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-08-14
Anticipated expiration: 2030-01-20

Abstract

The utility model belongs to the technical field of the battery production technique and specifically relates to indicate an injection device, including annotating the liquid support frame, install in the apron at the top of annotating the liquid support frame, be located the notes liquid ware of the below of apron, a treatment chamber for bearing the carrier of battery case and being connected with notes liquid support frame detachably, annotate the liquid ware and set up in the lifter plate of annotating the liquid support frame including going up and down, install in the notes liquid cup that the lifter plate is close to one side of carrier, run through the lifter plate and with annotate the liquid pipe of liquid cup intercommunication and install in the notes liquid mouth of annotating the liquid end of annotating the liquid cup, the lifter plate is provided with and annotates the first vacuum hole of liquid cup intercommunication, the feed liquor end of annotating the liquid pipe stretches out outside. The utility model has the advantages of simple structure, convenient operation annotates the liquid through annotating in external environment to annotating liquid ware and battery case, annotates the liquid through the high pressure again, annotates the efficient of liquid, and gets rid of the gas that carries in the electrolyte through the negative pressure gas, has improved the quality of annotating the liquid.

Description

Liquid injection device

Technical Field

The utility model belongs to the technical field of the battery production technique and specifically relates to indicate an priming device.

Background

Background artwith the advent of the electronic intelligence era, people have increasingly demanded electronic products, and batteries for providing working power for electronic products have become important, and particularly, the development of lithium ion batteries has become a hot topic. The electrolyte is an important component of the lithium ion battery, and the electrolyte injection is an important process for injecting quantitative electrolyte into the battery shell and is an important link in the production process of the lithium ion battery. However, in the prior art, the whole process of injecting liquid into the battery shell needs to be completed in the positive pressure cavity, so that the structure of the liquid injection is complex, the liquid injection efficiency is low, and the quality of the liquid injection is difficult to ensure. Therefore, the drawbacks are obvious, and a solution is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide an annotate liquid device efficient, of high quality.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an injection device, its is including annotating the liquid support frame, install in the apron at the top of annotating the liquid support frame, be located the liquid ware of annotating the below of apron, activity set up in the bottom of annotating the liquid support frame and be used for bearing the carrier of battery case and with annotate the treatment chamber that liquid support frame detachably is connected, annotate the liquid ware including go up and down set up in the lifter plate of annotating the liquid support frame, install in the notes liquid cup that the lifter plate is close to one side of carrier, run through the lifter plate and with annotate the liquid pipe of liquid cup intercommunication and install in the notes liquid mouth of annotating the liquid end of annotating the liquid cup, the lifter plate is provided with and annotates the first vacuum hole of liquid cup intercommunication, the feed liquor end of annotating.

Furthermore, the liquid injection device also comprises a lifting driving mechanism which is arranged on the cover plate and used for driving the lifting plate to lift.

Furthermore, the lifting driving mechanism comprises a guide rod, a guide sleeve and a connecting piece, one end of the guide rod is connected with the lifting plate, the other end of the guide rod penetrates through the cover plate and then is connected with the connecting piece, the guide sleeve is arranged on the cover plate and sleeved outside the guide rod, and the liquid inlet end of the liquid injection pipe is connected with the connecting piece.

Furthermore, the quantity of annotating the liquid ware is a plurality of, the carrier is provided with a plurality of bearing the weight of the chamber that are used for bearing the battery case, and a plurality of liquid wares set up with a plurality of bearing the weight of the chamber one-to-one.

Furthermore, the liquid filling cups of the plurality of liquid filling devices are of an integrated structure.

Furthermore, the top of the treatment cavity is concavely provided with a sealing groove, and a sealing ring for sealing a gap between the cover plate and the cavity is arranged in the sealing groove.

Furthermore, the top surface of the cover plate is provided with a handle.

Furthermore, the carrier comprises a bottom plate and two bearing positioning pieces detachably arranged on the bottom plate, the two bearing positioning pieces are arranged oppositely, the two bearing positioning pieces are provided with a plurality of positioning grooves in one-to-one correspondence with each other, and the positioning grooves of the two bearing positioning pieces are matched to form a row of bearing cavities.

Furthermore, the carrier further comprises a middle positioning piece detachably mounted on the bottom plate, the middle positioning piece is positioned between the two bearing positioning pieces, a plurality of positioning grooves are formed in two sides of the middle positioning piece, and the positioning grooves in two sides of the middle positioning piece are respectively matched with the positioning grooves of the two bearing positioning pieces to form two rows of bearing cavities.

The utility model has the advantages that: in practical application, a battery case to be injected is filled in a bearing cavity of a carrier, when the battery case is placed on the carrier, the carrier can be placed at the bottom of an injection support frame in advance, then the battery case is placed on the carrier, or can be positioned outside the injection support frame, after the battery case is placed on the carrier, the carrier is placed at the bottom of the injection support frame, so that the battery case is positioned below an injector, then a lifting driving mechanism drives a lifting plate and an injector to move close to the battery case carried by the carrier until an injection nozzle of the injector is in sealed communication with a liquid inlet of the battery case, a first vacuum hole vacuumizes the battery case through the injector, so that the battery case and the injector are in a vacuum state, then a liquid supply mechanism supplies electrolyte to an injection pipe, so that electrolyte with a set volume is stored in an injection cup, the electrolyte in the injection cup can be injected into the battery case through the, when certain electrolyte is injected into the battery shell, the electrolyte in the electrolyte injection cup is injected into the battery shell at a low speed and is difficult to inject the electrolyte under the action of pressure, at the moment, the electrolyte injection support frame, the electrolyte injector, the carrier and the battery shell are placed in the treatment cavity as a whole, the cover plate seals the opening end of the treatment cavity, positive pressure gas is introduced into the treatment cavity through the positive pressure hole, the positive pressure gas in the treatment cavity completely injects the electrolyte in the electrolyte injection cup into the battery shell through the first vacuum hole, and negative pressure gas is introduced into the treatment cavity through the second vacuum hole, the negative pressure gas in the treatment cavity vacuumizes the battery shell through the first vacuum hole and the electrolyte injection cup, so that the gas carried by the electrolyte in the battery shell is discharged, and the quality of injecting the electrolyte into the battery shell is improved. Of course, positive pressure gas and negative pressure gas can be introduced into the treatment cavity intermittently and alternately, so that the liquid injection efficiency is effectively improved, the gas in the electrolyte is removed, and the liquid injection quality is improved. In addition, when the battery case is used for injecting liquid, the internal pressure and the external pressure of the battery case are balanced, the battery case does not have the deformation problem (such as expansion) and the quality of the battery case after the liquid injection is ensured. The utility model has the advantages of simple structure, convenient operation annotates the liquid through annotating in external environment to annotating liquid ware and battery case, annotates the liquid through the high pressure again, annotates the efficient of liquid, and gets rid of the gas that carries in the electrolyte through the negative pressure gas, has improved the quality of annotating the liquid.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of the exploded structure of the present invention.

Fig. 3 is a schematic perspective view of the carrier of the present invention.

Description of reference numerals:

1. a liquid injection support frame; 2. a cover plate; 3. a liquid injector; 31. a lifting plate; 32. a liquid injection cup; 33. a liquid injection pipe; 34. a liquid injection nozzle; 35. a first vacuum hole; 36. a handle; 4. a battery case; 5. a carrier; 51. a base plate; 52. a load bearing positioning member; 53. an intermediate positioning member; 54. positioning a groove; 6. a treatment chamber; 61. a second vacuum hole; 62. a positive pressure port; 63. a sealing groove; 7. a lifting drive mechanism; 71. a guide bar; 72. a guide sleeve; 73. a connecting member.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in figures 1 to 3, the utility model provides a liquid injection device, which comprises a liquid injection support frame 1, a cover plate 2 arranged on the top of the liquid injection support frame 1, a liquid injector 3 positioned below the cover plate 2, a carrier 5 movably arranged on the bottom of the liquid injection support frame 1 and used for bearing a battery shell 4, and a treatment chamber 6 detachably connected with the liquid injection support frame 1, the liquid injector 3 comprises a lifting plate 31 arranged on the liquid injection support frame 1 in a lifting way, a liquid injection cup 32 arranged on one side of the lifting plate 31 close to the carrier 5, a liquid injection pipe 33 penetrating through the lifting plate 31 and communicated with the liquid injection cup 32, and a liquid injection nozzle 34 arranged at the liquid outlet end of the liquid injection cup 32, lifter plate 31 is provided with the first vacuum hole 35 with annotate liquid cup 32 intercommunication, the feed liquor end of annotating liquid pipe 33 is suddenly stretched out outside apron 2, and apron 2 is used for closing with treatment chamber 6 lid, treatment chamber 6 is provided with second vacuum hole 61 and malleation hole 62. Preferably, the battery case 4 is a steel battery case, the liquid injection device further comprises a lifting driving mechanism 7 which is arranged on the cover plate 2 and used for driving the lifting plate 31 to lift, the first vacuum hole 35 and the second vacuum hole 61 are respectively communicated with the vacuumizing mechanism, the positive pressure hole 62 is communicated with the gas generator, and the liquid injection pipe 33 is communicated with the liquid supply mechanism. In this embodiment, the injection is to inject an electrolyte into the battery case 4.

In practical application, a battery case 4 to be filled is filled in a bearing cavity of a carrier 5, when the battery case 4 is placed on the carrier 5, the carrier 5 can be placed at the bottom of the liquid injection support frame 1 in advance, then the battery case 4 is placed on the carrier 5, or the carrier 5 can be positioned outside the liquid injection support frame 1, when the carrier 5 is filled with the battery case 4, then the carrier 5 is placed at the bottom of the liquid injection support frame 1, so that the battery case 4 is positioned below the liquid injector 3, then the lifting driving mechanism 7 drives the lifting plate 31 together with the liquid injector 3 to move close to the battery case 4 carried by the carrier 5 until the liquid injection nozzle 34 of the liquid injector 3 is in sealed communication with the liquid inlet of the battery case 4, the first vacuum hole 35 vacuumizes the battery case 4 through the liquid injector 3, so that the battery case 4 and the liquid injector 3 are in a vacuum state, then the liquid supply mechanism supplies electrolyte to the liquid injection pipe 33, the electrolyte in the electrolyte injection cup 32 is injected into the battery case 4 through the electrolyte injection nozzle 34, when a certain amount of electrolyte is injected into the battery case 4, the electrolyte in the electrolyte injection cup 32 is injected into the battery case 4 at a slow speed and is difficult to inject under the action of pressure, at this time, the electrolyte injection support frame 1, the electrolyte injector 3, the carrier 5 and the battery case 4 are placed in the treatment chamber 6 as a whole, the open end of the treatment chamber 6 is sealed by the cover plate 2, positive pressure gas is introduced into the treatment chamber 6 through the positive pressure hole 62, the electrolyte in the electrolyte injection cup 32 is completely injected into the battery case 4 through the first vacuum hole 35 by the positive pressure gas in the treatment chamber 6, finally negative pressure gas is introduced into the treatment chamber 6 through the second vacuum hole 61, the negative pressure gas in the treatment chamber 6 is vacuumized on the battery case 4 through the first vacuum hole 35 and the electrolyte injection cup 32, so as to discharge the gas carried by the electrolyte in the battery case 4, to improve the quality of the liquid injection into the battery can 4. Of course, positive pressure gas and negative pressure gas can be introduced into the processing cavity 6 intermittently and alternately, so that the liquid injection efficiency is effectively improved, the gas in the electrolyte is removed, and the liquid injection quality is improved. In addition, when the battery case 4 is filled with liquid, the internal pressure and the external pressure of the battery case 4 are balanced, the battery case 4 cannot deform (such as expansion) and the quality of the battery case 4 after liquid filling is ensured. The utility model has the advantages of simple structure, convenient operation annotates the liquid through external environment in annotating liquid ware 3 and battery case 4, annotates the liquid through the high pressure again, annotates the efficient of liquid, and gets rid of the gas that carries in the electrolyte through the negative pressure gas, has improved the quality of annotating the liquid.

In this embodiment, the lifting driving mechanism 7 includes a guide rod 71, a guide sleeve 72 and a connecting member 73, one end of the guide rod 71 is connected to the lifting plate 31, the other end of the guide rod 71 penetrates through the cover plate 2 and then is connected to the connecting member 73, the guide sleeve 72 is installed on the cover plate 2 and sleeved outside the guide rod 71, the liquid inlet end of the liquid injection pipe 33 is connected to the connecting member 73, and the connecting member 73 is drivingly connected to an external driver or a manipulator.

In practical application, an external driver or a mechanical arm drives the connecting piece 73 to move downwards, so that the connecting piece 73 drives the guide rod 71, the lifting plate 31 and the liquid injector 3 to move close to the battery shell 4 carried by the carrier 5 until the liquid injection nozzle 34 of the liquid injector 3 is communicated with a liquid inlet of the battery shell 4; wherein, the stability of the lifting plate 31 and the injector 3 is improved by the sliding fit of the guide rod 71 and the guide sleeve 72.

In this embodiment, the number of the liquid injectors 3 is plural, the carrier 5 is provided with plural carrying cavities for carrying the battery case 4, and the plural liquid injectors 3 are provided in one-to-one correspondence with the plural carrying cavities. This structural design for once only can annotate liquid to a plurality of battery casees 4, improved the efficiency of annotating the liquid to battery case 4 widely.

In this embodiment, the liquid pouring cups 32 of the plurality of liquid pouring devices 3 are of an integral structure, so that the liquid pouring cups 32 of the plurality of liquid pouring devices 3 are good in integrity, strong in structural stability, reduced in the number of parts, and good in synchronism of the lifting movement of the plurality of liquid pouring devices 3.

In this embodiment, a sealing groove 63 is concavely provided at the top of the processing chamber 6, and a sealing ring for sealing a gap between the cover plate 2 and the processing chamber 6 is installed in the sealing groove 63. After the cover plate 2 covers the opening end of the treatment cavity 6, the sealing ring seals the gap between the cover plate 2 and the treatment cavity 6, the air tightness is good, and the phenomenon of air leakage is avoided to influence the efficiency and quality of liquid injection. The sealing ring is limited and mounted through the sealing groove 63, and the sealing effect is prevented from being influenced by the displacement of the sealing ring when the cover plate 2 and the treatment cavity 6 are opened and closed.

In this embodiment, the handle 36 is installed on the top surface of the cover plate 2, and the cover plate 2, the liquid injector 3 and the liquid injection support frame 1 are convenient to transfer by additionally installing the handle 36.

In this embodiment, the carrier 5 includes a bottom plate 51 and two bearing positioning members 52 detachably mounted on the bottom plate 51, the two bearing positioning members 52 are disposed oppositely, the two bearing positioning members 52 are respectively provided with a plurality of positioning slots 54 corresponding to each other one by one, the positioning slots 54 of the two bearing positioning members 52 are matched to form a row of bearing cavities, and the row of bearing cavities has a plurality of bearing cavities. The two ends of the battery case 4 are respectively accommodated in the positioning grooves 54 of the two bearing positioning members 52, and the bearing cavities position the battery case 4, so as to ensure the stability and the position accuracy of the battery case 4 on the carrier 5. The positions of the two bearing positioning members 52 on the bottom plate 51 can be adjusted, that is, the distance between the two bearing positioning members 52 can be adjusted, so that the size of the bearing cavity can be adjusted to be suitable for positioning and bearing battery cases 4 with different specifications.

In this embodiment, the carrier 5 further includes a middle positioning member 53 detachably mounted on the bottom plate 51, the middle positioning member 53 is located between the two bearing positioning members 52, two sides of the middle positioning member 53 are both provided with a plurality of positioning slots 54, the positioning slots 54 on two sides of the middle positioning member 53 are respectively matched with the positioning slots 54 of the two bearing positioning members 52 to form two rows of bearing cavities; specifically, the number of positioning slots 54 is equal to the number of load chambers in each row of load chambers. By additionally arranging the middle positioning piece 53 at the middle position of the two bearing positioning pieces 52, the number of the bearing cavities is greatly increased, and the liquid injection efficiency is further improved.

All the technical features in the embodiment can be freely combined according to actual needs.

The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.

Claims

1. A priming device which characterized in that: including annotating the liquid support frame, install in the apron at the top of annotating the liquid support frame, be located the notes liquid ware of the below of apron, activity set up in the bottom of annotating the liquid support frame and be used for bearing the carrier of battery case and with annotate the treatment chamber that liquid support frame detachably is connected, annotate the liquid ware including go up and down to set up in the lifter plate of annotating the liquid support frame, install in the notes liquid cup of the lifter plate one side near the carrier, run through the lifter plate and with annotate the liquid pipe of liquid cup intercommunication and install in the notes liquid mouth of annotating the liquid end of annotating the liquid cup, the lifter plate is provided with the first vacuum hole with annotate liquid cup intercommunication, outside the feed liquor end of annotating the liquid pipe stretches out the.

2. The liquid injection device according to claim 1, wherein: the liquid injection device further comprises a lifting driving mechanism which is arranged on the cover plate and used for driving the lifting plate to lift.

3. The liquid injection device according to claim 2, wherein: the lifting driving mechanism comprises a guide rod, a guide sleeve and a connecting piece, one end of the guide rod is connected with the lifting plate, the other end of the guide rod penetrates through the cover plate and then is connected with the connecting piece, the guide sleeve is arranged on the cover plate and sleeved outside the guide rod, and the liquid inlet end of the liquid injection pipe is connected with the connecting piece.

4. The liquid injection device according to claim 1, wherein: the quantity of annotating the liquid ware is a plurality of, the carrier is provided with a plurality of bearing the weight of the chamber that are used for bearing the battery case, and a plurality of liquid wares set up with a plurality of bearing the weight of the chamber one-to-one.

5. The liquid injection device according to claim 4, wherein: the liquid filling cups of the plurality of liquid filling devices are of an integrated structure.

6. The liquid injection device according to claim 1, wherein: the top of the treatment cavity is concavely provided with a sealing groove, and a sealing ring for sealing a gap between the cover plate and the cavity is arranged in the sealing groove.

7. The liquid injection device according to claim 1, wherein: the top surface of the cover plate is provided with a handle.

8. The liquid injection device according to claim 4, wherein: the carrier comprises a bottom plate and two bearing positioning pieces detachably arranged on the bottom plate, the two bearing positioning pieces are arranged oppositely, the two bearing positioning pieces are provided with a plurality of positioning grooves in one-to-one correspondence, and the positioning grooves of the two bearing positioning pieces are matched to form a row of bearing cavities.

9. The liquid injection device according to claim 8, wherein: the carrier further comprises a middle positioning piece detachably arranged on the bottom plate, the middle positioning piece is positioned between the two bearing positioning pieces, a plurality of positioning grooves are formed in the two sides of the middle positioning piece, and the positioning grooves in the two sides of the middle positioning piece are respectively matched with the positioning grooves of the two bearing positioning pieces to form two rows of bearing cavities.