CN114552147A - Internal circulation type battery liquid injection mechanism and liquid injection method thereof - Google Patents
Internal circulation type battery liquid injection mechanism and liquid injection method thereof Download PDFInfo
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- CN114552147A CN114552147A CN202210275886.5A CN202210275886A CN114552147A CN 114552147 A CN114552147 A CN 114552147A CN 202210275886 A CN202210275886 A CN 202210275886A CN 114552147 A CN114552147 A CN 114552147A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
- H01M50/627—Filling ports
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention provides an internal circulation type battery liquid injection mechanism and a liquid injection method thereof, wherein the internal circulation type battery liquid injection mechanism comprises two liquid injection devices, wherein both the two liquid injection devices are provided with piston assemblies and openable liquid outlet heads; one end of at least one liquid injection device, which is close to the liquid outlet head, is also provided with a liquid injection port which can be opened and closed; the liquid injection port is used for injecting liquid for infiltration into the liquid injection devices, the two liquid injection devices are connected with the device to be infiltrated through the liquid outlet head so as to inject the liquid into the device to be infiltrated, and the liquid is driven to flow back and forth in the device to be infiltrated based on the movement of the piston assemblies in the two liquid injection devices. Compared with the prior art, the internal circulation type battery liquid injection mechanism and the liquid injection method thereof have the advantages of high yield, high safety performance, high efficiency and obvious infiltration effect.
Description
Technical Field
The invention belongs to battery injection equipment, and particularly relates to an internal circulation type battery liquid injection mechanism and a liquid injection method thereof.
Background
The electrolyte is a medium used by batteries, electrolytic capacitors and the like, has certain corrosivity, provides ions for normal work of the batteries, ensures that chemical reactions generated in the work are reversible, is injected into the batteries after the production of the batteries is finished, can select different formulas according to requirements, and is mainly prepared from special sulfuric acid and distilled water according to a certain proportion.
The method adopted by the existing battery liquid injection firstly injects electrolyte into the battery, then puts the whole battery into a high-pressure cavity, and soaks the battery by applying high pressure to the high-pressure cavity, and the method has the following defects: the first high pressure cavity and the high pressure cavity belong to three types of high pressure containers, and the manufacturing cost and the danger are high. Secondly, a high-pressure metal container is adopted, and the pressure resistance is achieved by limiting the volume, so that the capacity of the battery is limited, and the defect of high production cost is caused. Thirdly, the positive and negative pressure circulation process of the cavity has long time period and unobvious infiltration effect.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an internal circulation type battery liquid injection mechanism and a liquid injection method thereof, and the internal circulation type battery liquid injection mechanism has the advantages of high yield, high safety performance, high efficiency and obvious infiltration effect.
The method is realized by the following technical scheme:
an internal circulation type battery liquid injection mechanism comprises two liquid injection devices, wherein a piston assembly and a liquid outlet head which can be opened and closed are arranged in each of the two liquid injection devices; one end of at least one liquid injection device, which is close to the liquid outlet head, is also provided with a liquid injection port which can be opened and closed; the liquid injection port is used for injecting liquid for infiltration into the liquid injection devices, the two liquid injection devices are connected with the device to be infiltrated through the liquid outlet head so as to inject the liquid into the device to be infiltrated, and the liquid is driven to flow back and forth in the device to be infiltrated based on the movement of piston assemblies in the two liquid injection devices.
In a specific embodiment, one end of the liquid injection device, which is far away from the liquid outlet head, is provided with a mechanical valve; the mechanical valve is connected with an external air pump to drive the piston assembly through the air pump.
In one embodiment, the piston assembly includes a piston and a drive rod,
the edge of the piston is tightly attached to the inner wall of the liquid injection device, and the driving rod is connected with the piston so as to drive the piston to slide in the liquid injection device.
In a specific embodiment, the liquid outlet head of at least one liquid injection device comprises a hose.
In a specific embodiment, the liquid injection device further comprises a support frame, and the two liquid injection devices are arranged on the support frame;
the support frame is detachably connected with the device to be soaked.
In a specific embodiment, a bayonet is arranged on the support frame, and the device to be infiltrated is detachably connected with the support frame through the bayonet.
In a specific embodiment, the device further comprises a three-dimensional space position adjusting assembly;
at least one liquid injection device is connected with the support frame through the three-dimensional space position adjusting assembly.
In a specific embodiment, the liquid includes an electrolyte for wetting the device to be wetted, and the device to be wetted includes a battery.
A liquid injection method is applied to the internal circulation type battery liquid injection mechanism, and comprises the following steps:
step A, injecting liquid into a first liquid injection device through a liquid injection port;
b, opening liquid outlet heads of the first liquid injection device and the second liquid injection device;
step C, controlling the piston assembly of the first liquid injection device to move towards one end of the liquid outlet head, and simultaneously controlling the piston assembly of the second liquid injection device to move away from one end of the liquid outlet head;
step D, controlling the piston assembly of the second liquid injection device to move towards one end of the liquid outlet head, and simultaneously controlling the piston assembly of the first liquid injection device to move away from one end of the liquid outlet head;
and E, repeatedly executing the steps C to D until the device to be infiltrated is infiltrated.
In one embodiment, injecting liquid into the first injection device through the injection port comprises:
closing the liquid outlet head and the liquid inlet of the first liquid injection device, and controlling the piston assembly of the first liquid injection device to move towards one end far away from the liquid outlet head so as to form a negative pressure space between the liquid outlet head and the piston assembly in the first liquid injection device;
opening the liquid injection port of the first liquid injection device, and injecting liquid into the negative pressure space through the liquid injection port;
and after the liquid injection is finished, closing the liquid injection port of the first liquid injection device.
The invention has at least the following beneficial effects:
the invention provides an internal circulation type battery liquid injection mechanism and a liquid injection method thereof, wherein the internal circulation type battery liquid injection mechanism comprises two liquid injection devices, wherein both the two liquid injection devices are provided with piston assemblies and openable liquid outlet heads; one end of at least one liquid injection device, which is close to the liquid outlet head, is also provided with a liquid injection port which can be opened and closed; the liquid injection port is used for injecting liquid for infiltration into the liquid injection devices, the two liquid injection devices are connected with the device to be infiltrated through the liquid outlet head so as to inject the liquid into the device to be infiltrated, and the liquid is driven to flow back and forth in the device to be infiltrated based on the movement of the piston assemblies in the two liquid injection devices. Compared with the prior art, the internal circulation type battery liquid injection mechanism and the liquid injection method thereof have the advantages of high yield, high safety performance, high efficiency and obvious infiltration effect.
Furthermore, the reciprocating flow of the liquid in the device to be soaked is realized through the piston assembly, so that the advantages of high efficiency and obvious soaking effect are realized.
Furthermore, the supporting frame and the device to be soaked are connected to realize that the device to be soaked is stably fixed on the supporting frame, so that the stability is improved, and the device has the advantages of being detachable and convenient to take.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is an overall schematic view of an internal circulation type battery charging mechanism provided in embodiment 1;
fig. 2 is an exploded view of the internal circulation type battery charging mechanism provided in example 1;
fig. 3 is a schematic view of the supporting stand provided in embodiment 1;
fig. 4 is a schematic view of a first bracket and a first liquid injection device provided in example 1;
fig. 5 is a schematic view of a second bracket and a second liquid injection device provided in example 1;
FIG. 6 is a schematic view of a bayonet and a device to be infiltrated provided in example 1;
fig. 7 is a sectional view of the internal circulation type battery charging mechanism according to example 1.
Reference numerals:
1-a device to be infiltrated; 2-a first liquid injection device; 3-a second liquid injection device; 4-a support frame; 5-liquid injection port;
11-a first liquid inlet; 12-a second liquid inlet;
21-a first mechanical valve; 22-a first liquid outlet head; 23-a first piston; 25-a first fixed column; 26-a first stop;
31-a second mechanical valve; 32-a second liquid outlet head; 33-a second piston; 35-a second fixed column; 36-a second stop;
41-a first scaffold; 42-a second stent; 43-bayonet;
6-hollowed-out part.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an internal circulation type battery liquid injection mechanism and a liquid injection method thereof, wherein the internal circulation type battery liquid injection mechanism comprises two liquid injection devices, wherein both the two liquid injection devices are provided with piston assemblies and openable liquid outlet heads; one end of at least one liquid injection device close to the liquid outlet head is also provided with a liquid injection port 5 which can be opened and closed; the liquid injection port 5 is used for injecting liquid for infiltration into the liquid injection devices, the two liquid injection devices are connected with the device to be infiltrated 1 through the liquid outlet heads so as to inject the liquid into the device to be infiltrated 1, and the liquid is driven to flow back and forth in the device to be infiltrated 1 based on the movement of the piston assemblies in the two liquid injection devices. The liquid injection method is applied to an internal circulation type battery liquid injection mechanism, and comprises the following steps: and step A, injecting liquid into the first liquid injection device through the liquid injection port. And step B, opening liquid outlet heads of the first liquid injection device and the second liquid injection device. And C, controlling the piston assembly of the first liquid injection device to move towards one end of the liquid outlet head, and simultaneously controlling the piston assembly of the second liquid injection device to move away from one end of the liquid outlet head. And D, controlling the piston assembly of the second liquid injection device to move towards one end of the liquid outlet head, and simultaneously controlling the piston assembly of the first liquid injection device to move away from one end of the liquid outlet head. And E, repeatedly executing the steps C-D until the device to be soaked is soaked. Compared with the prior art, the internal circulation type battery liquid injection mechanism and the liquid injection method thereof have the advantages of high yield, high safety performance, high efficiency and obvious infiltration effect.
Example 1
As shown in FIG. 1, the invention provides an internal circulation type battery liquid injection mechanism and a liquid injection method thereof, wherein the internal circulation type battery liquid injection mechanism comprises two liquid injection devices, wherein both the two liquid injection devices are provided with a piston assembly and a liquid outlet head which can be opened and closed; one end of at least one liquid injection device close to the liquid outlet head is also provided with a liquid injection port 5 which can be opened and closed; the liquid injection port 5 is used for injecting liquid for infiltration into the liquid injection devices, the two liquid injection devices are connected with the device to be infiltrated 1 through the liquid outlet heads so as to inject the liquid into the device to be infiltrated 1, and the liquid is driven to flow back and forth in the device to be infiltrated 1 based on the movement of the piston assemblies in the two liquid injection devices. Compared with the prior art, the internal circulation type battery liquid injection mechanism provided by the invention has the advantages of high yield, high safety performance, high efficiency and obvious infiltration effect.
As shown in fig. 1 and 2, specifically, the two liquid injecting devices include a first liquid injecting device 2 and a second liquid injecting device 3, and the first liquid injecting device 2 and/or the second liquid injecting device 3 are provided with openable and closable liquid injecting ports 5 for injecting the liquid for infiltration into the first liquid injecting device 2 and/or the second liquid injecting device 3. The openable and closable liquid inlet 5 may be realized by a sealing member made of a sealing material such as a rubber ring, or the openable and closable liquid inlet 5 may be realized by a valve body.
In this embodiment, the first filling device 2 is provided with an openable and closable filling port 5, the filling port 5 is provided at a position close to the first liquid outlet head 22, and the filling port 5 is used for filling the wetting liquid into the filling device.
In one embodiment, the second filling device 3 is provided with a openable and closable filling port 5, the filling port 5 is arranged at a position close to the second liquid outlet head 32, and the filling port 5 is used for filling the wetting liquid into the filling device.
In another embodiment, the first filling device 2 and the second filling device 3 are both provided with openable and closable filling ports 5, the filling port 5 on the first filling device 2 is arranged at a position close to the first liquid outlet head 22, the filling port 5 on the second filling device 3 is arranged at a position close to the second liquid outlet head 32, and the filling port 5 is used for filling liquid for infiltration into the filling device.
As shown in fig. 1, 2 and 6, the first injection device 2 is provided with a first piston assembly and a first liquid outlet head 22, and the second injection device 3 comprises a second piston assembly and a second liquid outlet head 32. The first liquid outlet head 22 and the second liquid outlet head 32 are both openable and closable. The first liquid outlet head 22 is connected to the first liquid inlet 11 of the device 1 to be soaked, and the second liquid outlet head 32 is connected to the second liquid inlet 12 of the device 1 to be soaked.
In this embodiment, the first liquid inlet 11 of the device 1 to be infiltrated and the second liquid inlet 12 of the device 1 to be infiltrated are arranged oppositely. The first liquid inlet 11 is arranged at the upper part of the device to be infiltrated 1, and the second liquid inlet 12 is arranged at the lower part of the device to be infiltrated 1. The movement distance of the liquid in the device 1 to be infiltrated is increased through the arrangement positions of the first liquid inlet 11 and the second liquid inlet 12, so that the infiltration efficiency of the liquid is increased.
In other embodiments, the first inlet 11 of the device to be infiltrated 1 and the second inlet 12 of the device to be infiltrated 1 are disposed at a location other than on the opposite side.
As shown in fig. 1, 2 and 7, one end of the liquid injection device, which is far away from the liquid outlet head, is provided with a mechanical valve; the mechanical valve is connected with an external air pump to drive the piston assembly through the air pump. Specifically, one end of the first liquid injection device 2, which is far away from the first liquid outlet head 22, is provided with a first mechanical valve 21, and the first mechanical valve 21 is connected to an external air pump so as to drive a first piston assembly through the air pump, so that the first piston assembly moves towards one end, which is far away from or close to the first liquid outlet head 22. One end of the second liquid injection device 3, which is far away from the second liquid outlet head 32, is provided with a second mechanical valve 31, and the second mechanical valve 31 is connected with an external air pump so as to drive a second piston assembly through the air pump, so that the second piston assembly moves towards one end, which is far away from or close to the second liquid outlet head 32.
As shown in fig. 2 and 7, the piston assembly includes a piston and a driving rod, an edge of the piston clings to an inner wall of the liquid filling device, and the driving rod is connected with the piston to drive the piston to slide in the liquid filling device. Specifically, the first piston assembly includes a first piston 23 and a first driving rod, an edge of the first piston 23 abuts against an inner wall of the first injection device 2, and the first driving rod is connected to the first piston 23 to drive the first piston 23 to slide in the first injection device 2. The edge of the second piston 33 abuts against the inner wall of the second liquid injection device 3, and the second driving rod is connected with the second piston 33 to drive the second piston 33 to slide in the second liquid injection device 3.
In this embodiment, the first drive rod is arranged on the side of the first piston 23 remote from the first head 22, the second drive rod is arranged on the side of the second piston 33 remote from the second head 32, and the arrangement of the positions of the first drive rod and the second drive rod reduces the use of space.
In other embodiments, a first actuating rod is arranged on a side of the first piston 23 adjacent to the first head 22 and a second actuating rod is arranged on a side of the second piston 33 adjacent to the second head 32.
As shown in fig. 1 and 2, the liquid outlet head of at least one liquid filling device comprises a hose. Specifically, the first liquid outlet head 22 of the first liquid injection device 2 and the second liquid outlet head 32 of the second liquid injection device 3 comprise hoses, and the arrangement of the hoses is more beneficial to adjusting the positions of the first liquid injection device 2 and the second liquid injection device 3, so that the connection between the first liquid injection device 2 and the second liquid injection device 3 and the device to be soaked 1 is realized.
As shown in fig. 3-5, the internal circulation type battery liquid injection mechanism further includes a support frame 4, the first liquid injection device 2 and the second liquid injection device 3 are both disposed on the support frame 4, and the device to be soaked 1 is detachably connected to the support frame 4. Specifically, the support frame 4 is provided with a bayonet 43 for connecting the device to be infiltrated 1, and the support frame 4 is connected with the device to be infiltrated 1 through the bayonet 43, so that the device to be infiltrated 1 is fixed, and the device has the advantage of convenient disassembly. Still be equipped with first support 41 and second support 42 on the support frame 4, first priming device 2 wears to locate first support 41, and second priming device 3 wears to locate second support 42, realizes first priming device 2 and the fixed of second priming device 3.
In this embodiment, the bayonet 43 includes two limiting blocks, when the device 1 to be infiltrated is disposed on the bayonet 43, the two limiting blocks are disposed on two opposite sides of the device 1 to be infiltrated respectively, and the position of the device 1 to be infiltrated is limited by the cooperation of the two limiting blocks, so that the device 1 to be infiltrated is fixed.
In other embodiments, the bayonet 43 includes a protrusion, the device 1 to be wetted is provided with a recess, and the position of the device 1 to be wetted is limited by the concave-convex structure, so as to fix the device 1 to be wetted.
As shown in fig. 1-7, the internal circulation type battery liquid injection mechanism further comprises a three-dimensional space position adjusting assembly. At least one liquid injection device is connected with the support frame 4 through a three-dimensional space position adjusting assembly. Specifically, a three-dimensional spatial position adjusting assembly is arranged on the first liquid injection device 2 or the first support 41, and the position of the first liquid injection device 2 is adjusted by the three-dimensional spatial position adjusting assembly. A three-dimensional space position adjusting assembly is arranged between the second liquid injecting device 3 or the second support 42, and the position of the second liquid injecting device 3 is adjusted through the three-dimensional space position adjusting assembly.
In one embodiment, the first injection device 2 and the second injection device 3 are provided with a three-dimensional space position adjusting assembly. The positions of the first liquid injection device 2 and the second liquid injection device 3 are directly adjusted through the three-dimensional space position adjusting assembly.
In another embodiment, three-dimensional space position adjusting assemblies are arranged on the first support 41 and the second support 42, and the positions of the first support 41 and the second support 42 are adjusted through the three-dimensional space position adjusting assemblies, so that the positions of the first injection device 2 and the second injection device 3 are indirectly adjusted.
As shown in fig. 3, the first bracket 41, the second bracket 42 and the bayonet 43 are provided with a hollow portion 6, and the hollow portion 6 includes a circle, a triangle, a rectangle or other polygons. Specifically, the first bracket 41 and the second bracket 42 are provided with a triangular cutout 6 and a rectangular cutout 6. The circular hollow-out portion 6 is provided on the bayonet 43, and the entire weight of the internal circulation type battery charging mechanism is reduced by the first bracket 41, the second bracket 42, and the hollow-out portion 6 provided on the bayonet 43, and the internal circulation type battery charging mechanism has an aesthetic property.
As shown in fig. 3-5, fixing columns are disposed around the first and second liquid injection devices 2 and 3, and limiting members are disposed on the fixing columns and abut against the first and second brackets 41 and 42. The fixed column is used for improving the firmness at two ends of the first liquid injection device 2 and the second liquid injection device 3, and the limiting part is used for limiting the positions of the first liquid injection device 2 and the second liquid injection device 3.
Specifically, the fixing columns include a first fixing column 25 and a second fixing column 35, wherein the first fixing column 25 is enclosed on the first liquid injection device 2, the second fixing column 35 is enclosed on the second liquid injection device 3, the first fixing column 25 is provided with a first limiting member 26, the first limiting member 26 abuts against the first bracket 41, the second fixing column 35 is provided with a second limiting member 36, the second limiting member 36 abuts against the second bracket 42, the first fixing column 25 and the second fixing column 35 are used for improving the firmness at two ends of the first liquid injection device 2 and the second liquid injection device 3, the first fixing column 25 is matched with the first limiting member 26, the second fixing column 35 is matched with the second limiting member 36 for limiting the positions of the first liquid injection device 2 and the second liquid injection device 3, so that the first injection device 2 and the second injection device 3 are fixed on the first bracket 41 and the second bracket 42, thereby improving the stability of the device.
In the present embodiment, the device to be soaked 1 is a battery, and the first liquid injection device 2 and the second liquid injection device 3 contain liquid therein, and the liquid is electrolyte.
As shown in fig. 1-7, the specific process of the internal circulation type battery liquid injection mechanism is as follows:
in the first period, the air pump is respectively connected with the first mechanical valve 21 and the second mechanical valve 31, and drives the first piston 23 to move in the first liquid injection device 2 in the direction close to the first liquid outlet head 22, and drives the second piston 33 to move in the second liquid injection device 3 in the direction far from the first liquid outlet head 22. At this time, the liquid enters the device to be infiltrated 1 from the first liquid injection device 2 and flows towards the second liquid injection device 3, so that primary liquid injection is realized.
In the second period, the first piston 23 is driven to move in the direction away from the first liquid outlet head 22 in the first liquid injection device 2, and the second piston 33 is driven to move in the direction close to the first liquid outlet head 22 in the second liquid injection device 3. At this time, the liquid flows to the first liquid injection device 2 in the device to be wetted 1, and secondary liquid injection is realized.
The third period is repeated with the process of the first period, the fourth period is repeated with the process of the second period, and the liquid flows in the device 1 to be soaked in a reciprocating mode through a plurality of periods, so that the soaking is realized, and the liquid injection efficiency is improved.
Example 2
In this embodiment, on the basis of embodiment 1, an internal circulation type battery electrolyte injection mechanism provided in embodiment 1 is applied to provide an electrolyte injection method, and the specific scheme is as follows:
the invention provides an internal circulation type battery liquid injection mechanism and a liquid injection method thereof, wherein the liquid injection method is applied to the internal circulation type battery liquid injection mechanism, and the method comprises the following steps:
and step A, injecting liquid into the first liquid injection device through the liquid injection port.
And step B, opening liquid outlet heads of the first liquid injection device and the second liquid injection device. The first liquid injection device is any one liquid injection device provided with a liquid injection port; the second liquid injection device is other liquid injection device except the first liquid injection device.
And C, controlling the piston assembly of the first liquid injection device to move towards one end of the liquid outlet head, and simultaneously controlling the piston assembly of the second liquid injection device to move away from one end of the liquid outlet head.
And D, controlling the piston assembly of the second liquid injection device to move towards one end of the liquid outlet head, and simultaneously controlling the piston assembly of the first liquid injection device to move away from one end of the liquid outlet head.
And E, repeatedly executing the steps C-D until the device to be soaked is soaked.
Compared with the prior art, the liquid injection method of the internal circulation type battery liquid injection mechanism has the advantages of high yield, high safety performance, high efficiency and obvious infiltration effect.
Wherein, the step A of injecting the liquid into the first liquid injection device through the liquid injection port comprises the following steps:
and closing the liquid outlet head and the liquid inlet of the first liquid injection device, and controlling the piston assembly of the first liquid injection device to move towards one end far away from the liquid outlet head so as to form a negative pressure space between the liquid outlet head and the piston assembly in the first liquid injection device. And opening a liquid injection port of the first liquid injection device, and injecting liquid into the negative pressure space through the liquid injection port. And after the liquid injection is finished, closing the liquid injection port of the first liquid injection device.
Wherein, step C "the piston assembly of the first priming device of control moves in the direction towards going out liquid head one end, controls the piston assembly of the second priming device simultaneously and moves in the direction of keeping away from going out liquid head one end" includes: the piston assembly of the first liquid injection device is controlled to move towards one end of the liquid outlet head through an external air pump or a driving rod, and the piston assembly of the second liquid injection device is controlled to move away from one end of the liquid outlet head.
In one embodiment, the first piston and the second piston are driven to move by an external air pump, and when the external air pump blows air to the first liquid injection device, the first piston moves towards one end close to the first liquid outlet head. At the same moment, when the external air pump sucks air to the second liquid injection device, the piston moves towards one end far away from the second liquid outlet head, so that liquid of the first liquid injection device is injected into the device to be soaked and enters the second liquid injection device.
In another embodiment, the first driving rod is pushed to drive the first piston, the first driving rod pushes the first piston to move towards one end close to the first liquid outlet head, and when the second driving rod pushes the second piston to move towards one end far away from the second liquid outlet head, liquid of the first liquid injection device is injected into the device to be soaked and enters the second liquid injection device.
Step D, controlling the piston assembly of the second liquid injection device to move towards one end of the liquid outlet head, and simultaneously controlling the piston assembly of the first liquid injection device to move away from one end of the liquid outlet head comprises the following steps: the piston assembly of the second liquid injection device is controlled to move towards one end of the liquid outlet head through an external air pump or a driving rod, and the piston assembly of the first liquid injection device is controlled to move towards the direction far away from one end of the liquid outlet head.
In one embodiment, the first piston and the second piston are driven to move by an external air pump, and when the external air pump sucks air in the first liquid injection device, the first piston moves towards one end far away from the first liquid outlet head. At the same moment, when the external air pump blows the second liquid injection device, the piston moves towards one end close to the second liquid outlet head, so that liquid of the second liquid injection device is injected into the device to be soaked and enters the first liquid injection device.
In another embodiment, the first driving rod is pushed to drive the first piston, the first driving rod pushes the first piston to move towards one end far away from the first liquid outlet head, and when the second driving rod pushes the second piston to move towards one end close to the second liquid outlet head, liquid of the second liquid injection device is injected into the device to be soaked and enters the first liquid injection device.
And E, repeatedly executing the step C to the step D until the infiltration of the device to be infiltrated is completed, wherein the repeated times are determined according to the infiltration degree, the step C to the step D is taken as a cycle and can be repeated for 5 to 100 times, and the complete infiltration of the device to be infiltrated is finally realized through the reciprocating periodic motion of the piston assembly of the first liquid injection device and the piston assembly of the second liquid injection device.
It will be understood by those skilled in the art that the modules or steps of the invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of computing devices, and optionally they may be implemented by program code executable by a computing device, such that it may be stored in a memory device and executed by a computing device, or it may be separately fabricated into various integrated circuit modules, or it may be fabricated by fabricating a plurality of modules or steps thereof into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
The above disclosure is only a few specific implementation scenarios of the present invention, however, the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (10)
1. An internal circulation type battery liquid injection mechanism is characterized by comprising two liquid injection devices, wherein a piston assembly and a liquid outlet head which can be opened and closed are arranged in each of the two liquid injection devices; one end of at least one liquid injection device, which is close to the liquid outlet head, is also provided with a liquid injection port which can be opened and closed; the liquid injection port is used for injecting liquid for infiltration into the liquid injection devices, the two liquid injection devices are connected with the device to be infiltrated through the liquid outlet head so as to inject the liquid into the device to be infiltrated, and the liquid is driven to flow back and forth in the device to be infiltrated based on the movement of piston assemblies in the two liquid injection devices.
2. The internal circulation type battery liquid injection mechanism according to claim 1, wherein a mechanical valve is arranged at one end of the liquid injection device, which is far away from the liquid outlet head; the mechanical valve is connected with an external air pump to drive the piston assembly through the air pump.
3. The internal circulation battery charging mechanism according to claim 2, wherein the piston assembly comprises a piston and a driving rod,
the edge of the piston is tightly attached to the inner wall of the liquid injection device, and the driving rod is connected with the piston so as to drive the piston to slide in the liquid injection device.
4. The internal circulation battery charging mechanism of claim 1, wherein the liquid outlet head of at least one charging device comprises a hose.
5. The internal circulation type battery electrolyte injection mechanism according to claim 1, further comprising a support frame, wherein both of the electrolyte injection devices are arranged on the support frame;
the support frame is detachably connected with the device to be soaked.
6. The internal circulation type battery electrolyte injection mechanism according to claim 5, wherein a bayonet is arranged on the support frame, and the device to be infiltrated is detachably connected with the support frame through the bayonet.
7. The internal circulation type battery liquid injection mechanism according to claim 6, further comprising a three-dimensional space position adjusting assembly;
at least one liquid injection device is connected with the support frame through the three-dimensional space position adjusting assembly.
8. The internal circulation type battery liquid injection mechanism according to claim 1, wherein the liquid comprises an electrolyte for infiltrating the device to be infiltrated, and the device to be infiltrated comprises a battery.
9. A liquid injection method, which is applied to the internal circulation type battery liquid injection mechanism according to any one of claims 1 to 8, and which comprises:
step A, injecting liquid into a first liquid injection device through a liquid injection port;
b, opening liquid outlet heads of the first liquid injection device and the second liquid injection device;
step C, controlling the piston assembly of the first liquid injection device to move towards one end of the liquid outlet head, and simultaneously controlling the piston assembly of the second liquid injection device to move away from one end of the liquid outlet head;
step D, controlling the piston assembly of the second liquid injection device to move towards one end of the liquid outlet head, and simultaneously controlling the piston assembly of the first liquid injection device to move away from one end of the liquid outlet head;
and E, repeatedly executing the steps C to D until the device to be infiltrated is infiltrated.
10. The infusion method according to claim 9, wherein the injecting liquid into the first infusion device through the infusion port comprises:
closing the liquid outlet head and the liquid inlet of the first liquid injection device, and controlling the piston assembly of the first liquid injection device to move towards one end far away from the liquid outlet head so as to form a negative pressure space between the liquid outlet head and the piston assembly in the first liquid injection device;
opening the liquid injection port of the first liquid injection device, and injecting liquid into the negative pressure space through the liquid injection port;
and after the liquid injection is finished, closing the liquid injection port of the first liquid injection device.
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| CN112290169A (en) * | 2020-03-31 | 2021-01-29 | 蜂巢能源科技有限公司 | Lithium ion battery liquid injection device and method |
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| JP2007213816A (en) * | 2006-02-07 | 2007-08-23 | Shin Kobe Electric Mach Co Ltd | Electrolyte injection device |
| US20140023912A1 (en) * | 2012-07-23 | 2014-01-23 | Sharp Kabushiki Kaisha | Nonaqueous secondary battery and filling method for same |
| CN106450145A (en) * | 2016-12-26 | 2017-02-22 | 宁德时代新能源科技股份有限公司 | Liquid injection device |
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