WO2023131024A1 - 注液嘴及具有其的注液装置 - Google Patents

注液嘴及具有其的注液装置 Download PDF

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Publication number
WO2023131024A1
WO2023131024A1 PCT/CN2022/142776 CN2022142776W WO2023131024A1 WO 2023131024 A1 WO2023131024 A1 WO 2023131024A1 CN 2022142776 W CN2022142776 W CN 2022142776W WO 2023131024 A1 WO2023131024 A1 WO 2023131024A1
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WO
WIPO (PCT)
Prior art keywords
liquid injection
liquid
injection nozzle
tube
injection tube
Prior art date
Application number
PCT/CN2022/142776
Other languages
English (en)
French (fr)
Inventor
王东风
黄彩虾
汪志明
苗思宇
李冠洲
唐鸣浩
张盛武
Original Assignee
宁德时代新能源科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Priority to EP22918465.0A priority Critical patent/EP4372902A1/en
Publication of WO2023131024A1 publication Critical patent/WO2023131024A1/zh
Priority to US18/666,815 priority patent/US20240304964A1/en

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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
    • H01M50/636—Closing or sealing filling ports, e.g. using lids
    • H01M50/645—Plugs
    • H01M50/655—Plugs specially adapted for venting
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/32—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening
    • B05B1/323—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening the valve member being actuated by the pressure of the fluid to be sprayed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/32—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening
    • B05B1/326—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening the valve being a gate valve, a sliding valve or a cock
    • 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
    • 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
    • H01M50/618—Pressure control
    • 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
    • H01M50/636—Closing or sealing filling ports, e.g. using lids
    • 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
    • H01M50/673—Containers for storing liquids; Delivery conduits therefor
    • 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

Definitions

  • the present application relates to the field of battery technology, in particular to a liquid injection nozzle and a liquid injection device having the same.
  • the liquid injection pump pumps the electrolyte and injects the electrolyte from the opening through the liquid injection nozzle into the interior of the battery cell, and then injects the electrolyte into the battery cell. This opening is sealed.
  • the liquid injection nozzle is used for liquid injection. The rubber inner wall of the liquid injection nozzle is easy to adhere to the residual electrolyte, and the residual electrolyte forms crystals, which will cause electrolyte pollution. Therefore, how to reduce the pollution of raffinate is a technical problem urgently needed to be solved in this field.
  • the purpose of the embodiments of the present application is to provide a liquid injection nozzle and a liquid injection device having the same, so as to reduce the pollution of residual liquid.
  • the specific technical scheme is as follows:
  • the embodiment of the first aspect of the present application provides a liquid injection nozzle, including a body, a liquid injection pipe and a baffle.
  • the body has a channel arranged along the height direction of the liquid injection nozzle, and the lower part of the channel is provided with a first outlet.
  • the liquid injection pipe passes through the channel in a manner of reciprocating motion along the height direction.
  • the baffle is connected to the body and is configured to cover the first outlet when the lower end of the liquid injection tube is higher than the first outlet, and to be abutted by the liquid injection tube when the lower end of the liquid injection tube is lower than the first outlet.
  • the lower part of the channel is provided with a first outlet
  • the baffle is connected to the body and configured to cover the first outlet when the lower end of the liquid injection tube is higher than the first outlet, and to be blocked by the liquid injection tube when the lower end of the liquid injection tube is lower than the first outlet .
  • the liquid to be injected is transported from the upper end of the liquid injection tube to the lower end of the liquid injection tube to enter the cavity to be injected to realize the liquid injection; after the liquid injection is completed , move the liquid injection tube back so that the lower end is reset above the first outlet.
  • the baffle covers the first outlet, which can block the residual liquid dripping from the lower end of the liquid injection tube, thereby reducing the impact of the residual liquid on the external environment. and other objects to reduce pollution.
  • the liquid to be injected is transported through the movable liquid injection tube, which can also prevent the inner wall of the body from adhering to the liquid to be injected, especially for the corrosive liquid to be injected, it is sufficient to replace the liquid injection tube with a suitable material, and the liquid injection nozzle The versatility and maintainability are stronger.
  • the liquid injection nozzle further includes a spring, which is arranged between the liquid injection tube and the body along the axis of the liquid injection tube, and is configured to generate elastic deformation when the liquid injection tube moves downward relative to the body .
  • a spring along the axial direction of the liquid injection pipe between the liquid injection pipe and the body, when liquid needs to be injected, force is applied to the liquid injection pipe, so that the liquid injection pipe moves downward against the elastic force of the spring and pushes against the baffle plate.
  • the lower end of the liquid injection pipe extends from the first outlet to the liquid injection port of the cavity to be injected to realize liquid injection.
  • the force applied to the liquid injection tube is canceled, and the spring returns to its original shape under its own elasticity, and at the same time drives the liquid injection tube to move upwards to realize the automatic reset of the liquid injection tube, making the operation of the liquid injection process easier.
  • the faster reset of the liquid injection tube can also better reduce the risk of the residual liquid accumulated at the lower end of the liquid injection tube dripping on other objects.
  • the liquid injection nozzle further includes a first extension connected to the liquid injection tube, the first extension extends outwardly from the tube wall of the liquid injection tube along the diameter direction of the liquid injection tube, the first extension and One end of the spring is attached.
  • the first extension part of the pipe wall of the liquid injection pipe By connecting the first extension part of the pipe wall of the liquid injection pipe along the diameter direction of the liquid injection pipe to connect with one end of the spring, the first extension part is perpendicular to the axis of the liquid injection pipe, which is more convenient to realize the installation of the spring, so that the spring It is arranged between the liquid injection pipe and the main body along the axial direction of the liquid injection pipe, and during the downward movement of the liquid injection pipe relative to the main body, the first extension part can generate pressure or tension on the spring connected to it to make the spring elastic deformation.
  • the liquid injection nozzle further includes a fixing seat opposite to the first extension part, and the fixing seat is fixed to the body and connected to the other end of the spring.
  • the other end of the spring is connected to the fixed seat by setting the fixed seat opposite to the first extension part. Since the fixed seat is fixed on the body and cannot move, when the force is applied to the liquid injection tube to move the liquid injection tube downward, the first The extension part drives one end of the spring connected to it to move toward (or away from) the fixed seat, that is, to compress (or stretch) the spring to make the spring elastically deformed.
  • the fixing seat is arranged directly below the first extending part, when the liquid injection tube moves downward, the first extending part exerts pressure on the spring, so that the spring is between the first extending part and the fixing seat. After being compressed, when the external force is removed, one end of the spring resists the first extension and rebounds upwards, that is, the liquid injection tube moves upwards and returns to the initial position.
  • the initial position can be understood as the position of the liquid injection tube when the spring is in its original state (no elastic deformation) or is not driven by external force.
  • the liquid injection nozzle further includes a second extension part, one end of the second extension part is connected to the first extension part, and the other end of the second extension part is configured to After the distance, it interferes with the fixed seat.
  • the downward movement distance of the liquid injection tube can be fixed by setting the second extension.
  • the other end of the second extension conflicts with the fixed seat, that is, the lower end of the liquid injection tube extends to the position of the liquid injection port after resisting the baffle. It will be fixed, so as to prevent the part of the liquid injection tube extending to the liquid injection port from being too long, causing the outside of the pipe wall of the liquid injection tube to touch the liquid to be injected or touch the liquid injection port.
  • the liquid injection nozzle further includes a limiting cylinder, which is disposed in the body and configured to be in contact with the tube wall of the liquid injection tube and/or the side wall of the second extension part.
  • a limit cylinder in the body that is in contact with the tube wall of the liquid injection tube and/or the side wall of the second extension part, the stability of the reciprocating movement of the liquid injection tube along the height direction of the liquid injection nozzle can be improved, thereby avoiding liquid injection. After the lower end of the tube extends toward the liquid injection port, it scrapes against the side wall of the liquid injection port due to its own deflection.
  • the limiting cylinder is further configured to be in contact with the first extension part.
  • the baffle is detachably connected between the body and the fixing seat. Since the baffle is used to block the residual liquid dripping from the lower end of the liquid injection pipe, its surface often contacts and adheres to the residual liquid. Especially for corrosive liquids, the baffle is easy to be damaged. Therefore, by placing the baffle The plate is detachably connected between the body and the fixing seat, which can facilitate cleaning, maintenance and replacement of the baffle.
  • the baffle includes a fixing ring with a plurality of first through holes and a plurality of sector-shaped elastic pieces.
  • the arc-shaped edges of the plurality of sector-shaped elastic pieces are embedded in the fixing ring and pass through the first
  • a bolt in a through hole is connected with the fixing ring, and the bolt is also passed through the body and the fixing seat.
  • the fixing ring and a plurality of fan-shaped elastic pieces By setting the fixing ring and a plurality of fan-shaped elastic pieces, on the one hand, it is more convenient to fix the baffle on the body where it can cover the first outlet;
  • the fan-shaped elastic piece of the baffle can automatically return to its original shape, so that after the liquid injection is completed, the liquid injection pipe is reset, and the baffle returns to the state covering the first outlet to block the residual liquid dripping from the liquid injection pipe.
  • the liquid injection tube is provided with a guide part, and the diameter of the guide part gradually decreases from the upper end of the liquid injection tube to the lower end of the liquid injection tube.
  • the baffle is provided with an inclined surface adapted to the guide part.
  • the embodiment of the second aspect of the present application provides a liquid injection device, including the liquid injection nozzle provided according to the embodiment of the first aspect of the present application.
  • the lower part of the channel is provided with The first outlet, the baffle plate of which is connected to the body, is configured to cover the first outlet when the lower end of the liquid injection tube is higher than the first outlet, and be injected when the lower end of the liquid injection tube is lower than the first outlet.
  • the liquid pipe is pushed away, so that when liquid injection is required, the first outlet of the liquid injection nozzle is aligned with the liquid injection port of the chamber to be injected, and the liquid injection pipe is driven to resist the baffle, so that the lower end of the liquid injection pipe Leading from the first outlet to the outside of the body, that is, extending to the liquid injection port of the cavity to be injected, the liquid to be injected is transported from the upper end of the liquid injection tube to the lower end of the liquid injection tube to enter the cavity to be injected to realize liquid injection ; After the liquid injection is completed, move the liquid injection pipe back so that the lower end is reset to the top of the first outlet.
  • the baffle covers the first outlet, which can block the residual liquid dripping from the lower end of the liquid injection pipe, thereby reducing The impact of the residual liquid on the external environment and other objects can reduce pollution.
  • the liquid to be injected is transported through the movable liquid injection tube, which can also prevent the inner wall of the body from adhering to the liquid to be injected, especially for the corrosive liquid to be injected, it is sufficient to replace the liquid injection tube with a suitable material, and the liquid injection nozzle The versatility and maintainability are stronger.
  • the liquid injection device further includes a liquid injection cup, a driving mechanism and a liquid blocking rod.
  • the injection cup includes a cavity for containing the electrolyte, an upper cover arranged at one end of the cavity, and a lower cover arranged at the other end of the cavity, the lower cover is provided with a second through hole, and the injection nozzle
  • the liquid pipe is fixedly installed in the second through hole and communicated with the cavity, and the upper cover is provided with a third through hole.
  • the driving mechanism is used to drive the liquid injection cup to move from the first position to the second position.
  • the liquid blocking rod, the position of the liquid blocking rod is fixed and pierced through the third through hole, and one end of the liquid blocking rod is configured to be in close contact with the upper end of the liquid injection tube and detached from the liquid injection tube when the liquid injection cup reaches the second position .
  • the liquid blocking rod By setting the liquid injection cup, the driving mechanism, and the liquid blocking rod, when the driving mechanism is not driving the liquid injection cup, the liquid blocking rod tightly abuts against the upper end of the liquid injection pipe, so that the liquid to be injected in the cavity of the liquid injection cup The liquid cannot flow into the liquid injection tube; when the driving mechanism drives the liquid injection cup to reach the second position, correspondingly, the liquid injection cup also drives the liquid injection tube fixed through its lower cover to move downward to its The lower end reaches the ideal position. At this time, the liquid blocking rod is separated from the liquid injection pipe, and the liquid injection pipe is connected with the cavity. The liquid to be injected will flow down from the upper end of the liquid injection pipe to its lower end, so as to enter the liquid injection port to realize injection. liquid.
  • FIG. 1 is a schematic structural view of a liquid injection nozzle provided in an embodiment of the present application
  • Fig. 2 is another schematic structural view of the liquid injection nozzle provided by the embodiment of the present application.
  • Fig. 3 is a top view of the baffle provided in the embodiment of the present application and a cross-sectional view of its front view;
  • FIG. 4 is a schematic structural diagram of a liquid injection device provided in an embodiment of the present application.
  • multiple refers to more than two (including two), similarly, “multiple groups” refers to more than two groups (including two), and “multiple pieces” refers to More than two pieces (including two pieces).
  • the battery mentioned in the embodiment of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity.
  • a battery there can be multiple battery cells, and multiple battery cells can be connected in series, in parallel or in parallel.
  • Mixed connection means that a plurality of battery cells are connected in series and in parallel. Multiple battery cells can be directly connected in series or parallel or mixed together, and then the whole body composed of multiple battery cells can be accommodated in the box; of course, the battery can also be connected in series, parallel or mixed first. Multiple battery modules are connected in series or in parallel or mixed to form a whole, and are housed in the box.
  • the battery may also include other structures, for example, the battery may also include a bus component for realizing electrical connection between multiple battery cells.
  • the batteries mentioned in this application may include battery modules or battery packs.
  • each battery cell may be a secondary battery or a primary battery, and may also be a lithium-ion battery, a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto.
  • the battery cells can be in the form of cylinders, flat bodies, cuboids or other shapes.
  • a battery cell refers to the smallest unit that makes up a battery.
  • a battery cell includes end caps, casings, cell assemblies, and other functional components.
  • One or more battery cell assemblies can be contained in the shell of a single battery cell.
  • the end cap refers to a component that covers the opening of the casing to isolate the internal environment of the battery cell from the external environment.
  • the shape of the end cap can be adapted to the shape of the housing to fit the housing.
  • the end cap can be made of a material with a certain hardness and strength (such as aluminum alloy), so that the end cap is not easy to deform when it is squeezed and collided, so that the battery cell can have a higher structure Strength, safety performance can also be improved.
  • Functional components such as electrode terminals can be provided on the end cap. The electrode terminals can be used for electrical connection with the battery cell assembly, so as to output or input the electric energy of the battery cells.
  • the end cap may also be provided with a pressure relief mechanism for releasing the internal pressure when the internal pressure or temperature of the battery cell reaches a threshold value.
  • the material of the end cap can also be various, for example, copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., which is not particularly limited in this embodiment of the present application.
  • an insulator can also be provided inside the end cover, and the insulator can be used to isolate the electrical connection components in the housing from the end cover, so as to reduce the risk of short circuit.
  • the insulating member may be plastic, rubber or the like.
  • the casing is a component used to cooperate with the end cap to form the internal environment of the battery cell, wherein the formed internal environment can be used to accommodate the battery cell assembly, electrolyte and other components.
  • the casing and the end cover can be independent parts, and an opening can be provided on the casing, and the internal environment of the battery cell can be formed by making the end cover cover the opening at the opening.
  • the end cover and the housing can also be integrated. Specifically, the end cover and the housing can form a common connection surface before other components enter the housing. When the inside of the housing needs to be encapsulated, the end Cover the housing.
  • the housing can be in various shapes and dimensions, such as cuboid, cylinder, hexagonal prism, etc.
  • the shape of the housing can be determined according to the specific shape and size of the battery cell assembly.
  • the housing can be made of various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., which are not particularly limited in this embodiment of the present application.
  • the battery cell assembly is the part where the electrochemical reaction occurs in the battery cell.
  • the casing may contain one or more cell assemblies.
  • the cell assembly is mainly formed by winding or stacking the positive electrode sheet and the negative electrode sheet, and usually a separator is provided between the positive electrode sheet and the negative electrode sheet.
  • the part of the positive electrode sheet and the negative electrode sheet with the active material constitutes the main body of the cell assembly, and the parts of the positive electrode sheet and the negative electrode sheet without the active material respectively constitute tabs.
  • the positive pole tab and the negative pole tab can be located at one end of the main body together or at two ends of the main body respectively.
  • the battery cell may be in the form of a cylinder, a flat body, a cuboid or other shapes, which are not particularly limited in this embodiment of the present application.
  • battery cells are divided into three types according to packaging methods: cylindrical battery cells, square prismatic battery cells, and pouch battery cells, which are not limited in the embodiments of the present application.
  • the battery cells in the embodiments of the present application can be used, but not limited to, in electric devices such as vehicles, ships or aircrafts.
  • the liquid injection pump pumps the electrolyte and injects the electrolyte from the opening through the liquid injection nozzle into the interior of the battery cell, and then injects the electrolyte into the battery cell.
  • This opening is sealed.
  • the liquid injection nozzle in the related art is used for liquid injection. The rubber inner wall of the liquid injection nozzle is easy to adhere to the residual electrolyte, and the residual electrolyte will form crystals that will cause electrolyte pollution.
  • the residual electrolyte accumulates towards the end opening of the liquid injection nozzle under the action of its own gravity.
  • the gravity of the accumulated electrolyte is greater than the adsorption force of the inner wall of the liquid injection nozzle to the electrolyte, the electrolyte will drip, making the electrolyte stain Attached to the surface of the battery cell, which will cause damage to the battery cell, and even form cross-contamination to other battery cells, causing more battery cells to be scrapped, which will increase the defective rate of the battery.
  • the applicant proposed a liquid injection nozzle after in-depth research.
  • the outlet of the liquid nozzle is provided with a baffle including an elastic member, and the baffle covers the outlet of the liquid injection nozzle.
  • the liquid injection pipe is moved to push against the baffle and then extend to the battery cell shell.
  • the baffle plate also automatically returns to the state of covering the outlet of the liquid injection nozzle under the elastic force of the elastic member.
  • a movable liquid injection tube By designing a movable liquid injection tube, on the one hand, it can prevent the electrolyte from adhering to the inner wall of the liquid injection nozzle, thereby reducing the formation of electrolyte crystals in the electrolyte and reducing electrolyte pollution.
  • the residual liquid at the end of the liquid injection tube can be blocked by the baffle covering the outlet of the liquid injection nozzle, thereby reducing the risk of residual liquid corroding other objects.
  • the liquid injection nozzle disclosed in the embodiment of the present application can be applied to any scene that needs to transport liquids, especially when transporting harmful liquids (such as some toxic, corrosive, reactive, or polluting liquids), the application of the embodiments of the present application
  • the disclosed liquid injection nozzle can reduce the risk of harmful liquid contacting other components or other objects, thereby making production more standardized and improving product yield.
  • the embodiment of the first aspect of the present application provides a liquid injection nozzle 10 , including a body 11 , a liquid injection tube 12 and a baffle 13 .
  • the body 11 has a passage arranged along the height direction of the liquid injection nozzle 10, and the lower part of the passage is provided with a first outlet; the liquid injection pipe 12 is passed through the passage in a reciprocating manner along the height direction;
  • the main body 11 is connected and configured to cover the first outlet when the lower end of the liquid injection tube 12 is higher than the first outlet, and to be blocked by the liquid injection tube 12 when the lower end of the liquid injection tube 12 is lower than the first outlet.
  • the liquid injection nozzle 10 is a device adapted to the liquid injection port 500 of the cavity to be injected and used to deliver the liquid to be injected to the liquid injection port 500 .
  • the cavity to be filled with liquid may be the cavity formed by the casing of the battery cell, and the liquid to be injected is an electrolyte suitable for the battery cell, for example, if the battery The monomer is a lithium-ion battery, and the main solvent of the electrolyte is ethylene carbonate, dimethyl carbonate, ethyl methyl carbonate, and diethyl carbonate; if the battery monomer is a lithium-manganese primary battery, the electrolyte's The main solvents are propylene carbonate, ethylene glycol dimethyl ether, etc.
  • the liquid injection port 500 can be understood as an opening opened on the casing of the battery cell for the liquid to be injected to enter the cavity to be injected.
  • the body 11 can be understood as a shell with a hollow space formed in the liquid injection nozzle 10 , which is used for accommodating or connecting and installing other components in the liquid injection nozzle 10 .
  • the channel can be understood as the part of the hollow space formed by the body 11 that goes through to both ends of the body 11 in the height direction.
  • the first outlet can be understood as an opening located at the lower part of the passage leading to the outside of the body 11.
  • the structural shape and size of the first outlet can be the same as or different from the structural shape and size of the passage. This application does not make special restrictions on this. But at least the size of the first outlet needs to be greater than or equal to the size of the channel, so that the liquid injection tube 12 passing through the channel can pass through the first outlet smoothly.
  • the liquid injection pipe 12 can be understood as a hollow cylindrical structure, and its two ends extending along the height direction of the liquid injection nozzle 10 pass through.
  • the liquid to be injected can be delivered from the upper end to the lower end of the liquid injection tube 12 .
  • the liquid injection nozzle 10 since its liquid injection pipe 12 can reciprocate along the height direction of the liquid injection nozzle 10 in the passage provided in its body 11, the lower part of the passage is provided with The first outlet, its baffle plate 13 is connected with the body 11, and is configured to cover the first outlet when the lower end of the liquid injection tube 12 is higher than the first outlet, and the lower end of the liquid injection tube 12 is lower than the first outlet.
  • the outlet is blocked by the liquid injection tube 12, so that when liquid injection is required, align the first outlet of the liquid injection nozzle 10 with the liquid injection port 500 of the cavity to be injected, and move the liquid injection tube 12 against the baffle 13 , the lower end of the liquid injection tube 12 can be passed from the first outlet to the outside of the main body 11, that is, to the liquid injection port 500 of the cavity to be injected, and the liquid to be injected is transported to the liquid injection tube by the upper end of the liquid injection tube 12 12 to enter the cavity to be injected to realize liquid injection; after the liquid injection is completed, the liquid injection pipe 12 is moved back so that the lower end is reset above the first outlet, and at this time the baffle 13 covers the first outlet, The residual liquid dripping from the lower end of the liquid injection pipe 12 can be blocked, thereby reducing the influence of the residual liquid on the external environment and other objects, and reducing pollution.
  • the liquid to be injected is transported through the movable liquid injection tube 12, which can also avoid the inner wall of the body 11 from adhering to the liquid to be injected, especially for the corrosive liquid to be injected, it is sufficient to replace the liquid injection tube 12 of a suitable material.
  • the versatility and maintainability of the liquid injection nozzle 10 are stronger.
  • the liquid injection nozzle 10 further includes a spring 16, and the spring 16 is arranged between the liquid injection pipe 12 and the body 11 along the axial direction of the liquid injection pipe 12, and It is configured to produce elastic deformation when the liquid injection tube 12 moves downward relative to the body 11 .
  • Spring 16 is a part made of elastic material (such as spring steel), which can produce elastic deformation when subjected to external force, and can return to its original shape under its own elastic action after external force is removed.
  • elastic material such as spring steel
  • the liquid injection nozzle 10 further includes a first extension 121 connected to the liquid injection tube 12 , and the first extension 121 is along the diameter direction of the liquid injection tube 12
  • the first extension part 121 is connected to one end of the spring 16 and extends outwardly from the tube wall of the liquid injection tube 12 .
  • the first extension part 121 can be understood as a structure arranged outside the tube wall of the liquid injection tube 12 perpendicular to the axis of the liquid injection tube 12.
  • the first extension part 121 has a certain hardness and strength, for example, it can be a plate made of a metal material. structure, so that when the liquid injection tube 12 moves downward, it can provide a reaction force against the elastic force of the spring 16 to do work.
  • the spring 16 Connect with one end of the spring 16 by setting the first extension 121 extending outwardly on the tube wall of the injection tube 12 along the diameter direction of the injection tube 12, and the first extension 121 is perpendicular to the axis of the injection tube 12, which is more convenient to realize alignment.
  • the spring 16 is installed so that the spring 16 is arranged between the liquid injection tube 12 and the main body 11 along the axial direction of the liquid injection tube 12, and during the downward movement of the liquid injection tube 12 relative to the main body 11, the first extension part 121 can A compressive force or a tensile force is generated on the spring 16 connected to the spring 16 so that the spring 16 is elastically deformed.
  • the liquid injection nozzle 10 further includes a fixing seat 14 disposed opposite to the first extension portion 121 , the fixing seat 14 is fixed to the body 11 and is connected to the other spring 16 Connected at one end.
  • the fixing seat 14 can be understood as a component that connects two or more parts and supports some parts, and its position is fixed.
  • the other end of the spring 16 is connected to the fixed seat 14. Since the fixed seat 14 is fixed to the body 11 and cannot move, when the force is applied to the liquid injection tube 12, the liquid injection tube When 12 moves downward, the first extension 121 drives one end of the spring 16 connected to it to move toward (or away from) the fixed seat 14, that is, to compress (or stretch) the spring 16 to make the spring 16 elastically deformed. For example, if the fixing seat 14 is arranged directly below the first extension 121, when the liquid injection tube 12 moves downward, the first extension 121 will exert pressure on the spring 16, so that the spring 16 is in the first extension.
  • the part 121 and the fixed seat 14 are compressed, and the external force is removed, and one end of the spring 16 rebounds upward against the first extension part 121, that is, the liquid injection tube 12 moves upward and returns to the initial position.
  • the initial position can be understood as the position of the injection tube 12 when the spring 16 is in its original state (no elastic deformation) or is not driven by external force.
  • the liquid injection nozzle 10 further includes a second extension portion 122, one end of the second extension portion 122 is connected to the first extension portion 121, and the second extension portion 122 The other end is configured to interfere with the fixing seat 14 after the liquid injection tube 12 moves downward for a preset distance.
  • the preset distance is the maximum value of the preset movable stroke of the liquid injection tube 12. In the case of no elastic deformation of the spring 16, along the axial direction of the liquid injection tube 12, the other end of the second extension part 122 and the fixed The maximum distance between the seats 14 is equal to the preset distance.
  • the second extension 122 can be understood as a structure extending downward from the end of the first extension 121 away from the tube wall of the injection tube 12 along the axis of the injection tube 12.
  • the position of the fixing seat 14 is Below the first extension portion 121
  • the length of the second extension portion 122 is set according to a predetermined distance and a position of the fixing seat 14 .
  • the second extension part 122 can be integrally formed with the same material as the first extension part 121 , and the first extension part 121 can also be integrally formed with the liquid injection tube 12 .
  • the downward movement distance of the liquid injection tube 12 can be fixed by setting the second extension part 122.
  • the position toward the liquid injection port 500 is fixed, so as to prevent the part of the liquid injection tube 12 extending to the liquid injection port 500 from being too long, causing the outside of the tube wall of the liquid injection tube 12 to touch the liquid to be injected or the liquid injection port 500 .
  • the liquid injection nozzle 10 further includes a limiting cylinder 15, which is disposed in the body 11 and configured to be in contact with the wall of the liquid injection tube 12 and the /or the sidewalls of the second extension portion 122 are in contact.
  • the limiting cylinder 15 can be understood as a cylindrical structure formed around the correct direction for limiting the part to keep moving in a correct direction.
  • the limiting cylinder 15 may include a first limiting portion 151 arranged around the axis of the injection tube 12 , and a first limiting portion 151 arranged perpendicular to the first limiting portion 151 .
  • the second limiting part 152, the side wall of the first limiting part 151 can be in contact with the side wall of the second extension part, and the second limiting part 152 is designed to be in contact with the tube wall of the liquid injection tube 12, so that, when injecting During the linear movement of the liquid pipe 12 along the height direction of the liquid injection nozzle 10 (that is, the axial direction of the liquid injection pipe 12), the first limiting part 151 and the second limiting part 152 can simultaneously limit the liquid injection tube 12 in its position. Radial deflection occurs.
  • the reciprocating movement of the liquid injection pipe 12 along the height direction of the liquid injection nozzle 10 can be improved by setting the limit cylinder 15 in the main body 11 in contact with the pipe wall of the liquid injection pipe 12 and/or the side wall of the second extension part 122 Stability, and then prevent the lower end of the liquid injection tube 12 from scraping against the side wall of the liquid injection port 500 due to its own deflection after reaching the liquid injection port 500 .
  • the limiting barrel 15 is also configured to be in contact with the first extension portion 121 .
  • the end of the first limiting part 151 away from the second limiting part 152 can be connected to the fixing seat 14, according to the position of the fixing seat 14 and the first extension part 121 when the liquid injection tube 12 is not driven by external force
  • the length of the first stopper 151 is determined by the position of the first stopper 151, so that the second stopper 152 is set above the position of the first extension part 121 when the liquid injection tube 12 is not driven by external force, and is just in line with the first stopper 152.
  • the extension 121 contacts.
  • the liquid injection pipe 12 can better automatically return to the initial position and stop after the external force applied to the liquid injection pipe 12 is removed.
  • the baffle 13 is detachably connected between the body 11 and the fixing seat 14 .
  • the baffle 13 Since the baffle 13 is used to block the residual liquid dripping from the lower end of the liquid injection pipe 12, its surface often contacts and adheres to the residual liquid, especially for corrosive liquids, the baffle 13 is more likely to be damaged, therefore, By detachably connecting the baffle 13 between the body 11 and the fixing base 14 , it is more convenient to clean, maintain and replace the baffle 13 .
  • the baffle plate 13 includes a fixing ring 131 provided with a plurality of first through holes 1311 and a plurality of sector-shaped elastic pieces 132.
  • the arc-shaped edges of the plurality of sector-shaped elastic pieces 132 The fixing ring 131 is embedded in the fixing ring 131 and connected to the fixing ring 131 through a bolt passing through the first through hole 1311 , and the bolt is also passing through the body 11 and the fixing seat 14 .
  • the fixing ring 131 is a ring-shaped part used to fix the position of the baffle 13.
  • it can be made of metal, so as to be fixedly connected with other parts and not easily deformed, and has a certain hardness And strength, after being fixed and installed, it can keep its position and state unchanged.
  • Annulus usually refers to a ring in geometry, which can be understood as a solid part of a large disc after removing a small concentric disc. Axisymmetric figures with infinite lines of symmetry.
  • the fan-shaped elastic sheet 132 can be understood as a fan-shaped sheet structure capable of producing elastic deformation and automatically returning to its original shape.
  • Sector refers to the figure enclosed by the two radii of the central angle and the arc opposite the central angle. Align the axis of the injection tube 12 with the center of the fixed ring 131, and the arc-shaped edges of a plurality of fan-shaped elastic pieces 132 are embedded in the fixed ring 131 to fill the inner circle of the fixed ring 131 and cover the first outlet.
  • the first through hole 1311 can be understood as a hole on the fixing ring 131 completely passing through its solid part.
  • a bolt is a mechanical fastener, usually consisting of a head and a shank (a cylindrical body with external threads).
  • Bolt connection is a detachable fixed connection method for two or more parts.
  • at least one connected part has a through hole, and at least one connected part has an internal thread that matches the external thread on the bolt. hole, to use the cooperation between the screw of the bolt and the through hole, the cooperation between the external thread and the internal thread, and the connected parts are fixedly connected together by turning the bolt; the screw of the bolt is turned from Screwing out of the through hole can realize the disassembly of each connected part, and the disassembly operation is more convenient.
  • bolts are used to pass through the body 11, the fixing ring 131, the fan-shaped elastic piece 132, and the fixing seat 14 at the same time, so as to realize the connection between the fan-shaped elastic piece 132 and the fixing ring 131 and make the baffle 13 detachable. It is connected between the main body 11 and the fixing base 14 in a manner.
  • the fixing ring 131 and a plurality of fan-shaped elastic pieces 132 By setting the fixing ring 131 and a plurality of fan-shaped elastic pieces 132, on the one hand, it is more convenient to fix the baffle plate 13 on the body 11 where it can cover the first outlet, and on the other hand, it also makes the lower end of the injection tube 12 move upwards When it is higher than the first outlet, the fan-shaped elastic piece 132 of the baffle 13 can automatically return to its original shape, so that after the liquid injection is completed, the liquid injection pipe 12 is reset, and the baffle 13 returns to the state covering the first outlet to block the flow of water from the liquid injection pipe 12. dripping residue.
  • the liquid injection tube 12 is provided with a flow guide part 123 , and the diameter of the flow guide part 123 gradually decreases from the upper end of the liquid injection tube 12 to the lower end of the liquid injection tube 12 .
  • the guide part 123 can be understood as a part of the liquid injection tube 12 for guiding the liquid to be injected. As shown in FIGS. 1 and 2 , a flow guiding portion 123 may be provided at the lower end of the liquid injection tube 12 .
  • the liquid to be injected in the liquid injection tube 12 can flow from top to bottom behind the guide part 123 , can concentrate and confluence into a liquid column with a smaller diameter and enter the liquid injection port 500, so as to better prevent the liquid to be injected from splashing on other components and objects.
  • the baffle plate 13 is provided with an inclined surface 1301 adapted to the guide part 123 .
  • the slope 1301 can be understood as a plane forming an inclined angle with a certain plane on the baffle 13, and the inclined angle is usually an acute angle.
  • the inclined surface 1301 may be the upper surface of the fan-shaped elastic piece 132 forming an inclined angle with the lower surface thereof.
  • the liquid injection nozzle 10 includes a body 11 , a liquid injection tube 12 , a baffle 13 , a fixing seat 14 , a limiting cylinder 15 , and a spring 16 .
  • the body 11 has a passage arranged along the height direction of the liquid injection nozzle 10, and the lower part of the passage is provided with a first outlet; It includes a first extension part 121 and a second extension part 122, the first extension part 121 is connected to one end of the spring 16; connected, the other end of the second extension 122 is configured to interfere with the fixed seat 14 after the liquid injection tube 12 moves downward for a preset distance; the spring 16 is configured to produce elastic deformation when the liquid injection tube 12 moves downward relative to the main body 11; The spring 16 is configured to produce elastic deformation when the liquid injection tube 12 moves downward relative to the main body 11; and the side wall of the second extension 122; the baffle 13 is detachably connected between the body 11 and the fixing seat 14, including a fixing ring 131 and a plurality of fan-shaped elastic pieces 132, and the arcs of the plurality of fan-shaped elastic pieces 132 The shaped edge is embedded in the fixing ring 131 and connected with the fixing ring 131 through the bolts passing through the
  • the bolts are also passing through the body 11 and the fixing seat 14, and a plurality of fan-shaped elastic pieces 132 are connected to the liquid injection tube 12.
  • a plurality of fan-shaped elastic pieces 132 are connected to the liquid injection tube 12.
  • the liquid injection pipe 12 can reciprocate along the height direction of the liquid injection nozzle 10 in the channel provided in the body 11, the lower part of the channel is provided with a first outlet,
  • the plurality of fan-shaped elastic sheets 132 of the baffle 13 cover the first outlet when the lower end of the liquid injection pipe 12 is higher than the first outlet, and are injected when the lower end of the liquid injection pipe 12 is lower than the first outlet.
  • the pipe 12 is pushed away, so that when liquid injection is required, the first outlet of the liquid injection nozzle 10 is aligned with the liquid injection port 500 of the chamber to be injected, and the liquid injection pipe 12 is moved to resist the multiple fan-shaped elasticity of the baffle plate 13.
  • the sheet 132 allows the lower end of the liquid injection tube 12 to pass from the first outlet to the outside of the body 11, that is, to the liquid injection port 500 of the cavity to be injected, and the liquid to be injected is transported from the upper end of the liquid injection tube 12 to the injection port.
  • the lower end of the liquid pipe 12 enters the cavity to be injected to realize liquid injection; after the liquid injection is completed, the spring 16 returns to its original state under its own elasticity, and at the same time drives the liquid injection pipe 12 to move upwards to realize the automatic reset of the liquid injection pipe 12 , make the lower end of the liquid injection tube 12 return to the top of the first outlet.
  • the plurality of elastic sheets 132 return to the original shape to cover the first outlet, which can block the residual liquid dripping from the lower end of the liquid injection tube 12, thereby reducing the residual liquid.
  • the liquid to be injected is transported through the movable liquid injection tube 12, which can also avoid the inner wall of the body 11 from adhering to the liquid to be injected, especially for the corrosive liquid to be injected, it is sufficient to replace the liquid injection tube 12 of a suitable material.
  • the versatility and maintainability of the liquid injection nozzle 10 are stronger; by setting the limit tube 15 that is in contact with the pipe wall of the liquid injection pipe 12, the first extension 121, and the side wall of the second extension 122, the injection can be improved.
  • the stability of the reciprocating movement of the liquid pipe 12 along the height direction of the liquid injection nozzle 10 prevents the lower end of the liquid injection pipe 12 from stretching toward the liquid injection port 500 from scratching the side wall of the liquid injection port 500 due to its own deflection. After the external force applied to the liquid injection tube 12 is removed, the liquid injection tube 12 can better automatically return to the original position and stop; the second extension 122 can also fix the distance that the liquid injection tube 12 moves downward.
  • the other end of the extension part 122 is in conflict with the fixed seat 14, that is, the lower end of the liquid injection tube 12 is fixed at the position extending toward the liquid injection port 500 after resisting the baffle 13, thereby preventing the liquid injection tube 12 from extending to the liquid injection port 500
  • the part is too long, causing the outside of the tube wall of the liquid injection tube 12 to touch the liquid to be injected or touch the liquid injection port 500.
  • the embodiment of the second aspect of the present application provides a liquid injection device, including the liquid injection nozzle 10 provided according to the embodiment of the first aspect of the present application.
  • the liquid injection pipe 12 of the liquid injection nozzle 10 can reciprocate along the height direction of the liquid injection nozzle 10 in the channel provided in the body 11, the The lower part of the passage is provided with a first outlet, and its baffle plate 13 is connected to the body 11, and is configured to cover the first outlet when the lower end of the liquid injection pipe 12 is higher than the first outlet.
  • the first outlet of the liquid injection nozzle 10 is aligned with the liquid injection port 500 of the cavity to be injected, and the liquid injection pipe 12 is driven.
  • the baffle plate 13 Resist the baffle plate 13, so that the lower end of the liquid injection tube 12 can lead from the first outlet to the outside of the main body 11, that is, to the liquid injection port 500 of the cavity to be injected, and the liquid to be injected is drawn from the upper end of the liquid injection tube 12. transported to the lower end of the liquid injection tube 12 to enter the cavity to be injected to realize liquid injection; after the liquid injection is completed, the liquid injection tube 12 is moved back to make the lower end of the first outlet reset, and at this time the baffle 13 Covering the first outlet can block the residual liquid dripping from the lower end of the liquid injection pipe 12, thereby reducing the influence of the residual liquid on the external environment and other objects, and reducing pollution.
  • the liquid to be injected is transported through the movable liquid injection tube 12, which can also avoid the inner wall of the body 11 from adhering to the liquid to be injected, especially for the corrosive liquid to be injected, it is sufficient to replace the liquid injection tube 12 of a suitable material.
  • the versatility and maintainability of the liquid injection nozzle 10 are stronger.
  • the liquid injection device further includes a liquid injection cup 20 , a driving mechanism, and a liquid blocking rod 30 .
  • the liquid injection cup 20 includes a cavity 21 for containing the electrolyte, an upper cover 22 arranged at one end of the cavity 21, and a lower cover 23 arranged at the other end of the cavity 21, the lower cover 23 is provided with a second through hole , the liquid injection tube 12 of the liquid injection nozzle 10 is fixed through the second through hole and communicates with the cavity 21, and the upper cover 22 is provided with a third through hole; the driving mechanism is used to drive the liquid injection cup 20 to move from the first position to the The second position: the position of the liquid blocking rod 30 is fixed and pierced through the third through hole.
  • One end of the liquid blocking rod 30 is configured to be in close contact with the upper end of the liquid injection tube 12 and when the liquid injection cup 20 reaches the second position Disengage the injection tube 12.
  • the liquid injection cup 20 can be understood as a container for storing the liquid to be injected and configured to provide the liquid to be injected to the liquid injection tube 12 during the liquid injection operation.
  • the cavity 21 can be understood as a hollow structure that isolates the liquid to be injected from the outside.
  • the upper cover 22 can be understood as a structure adapted to the top of the cavity 21 in the height direction of the liquid injection device, and used to cover the top of the cavity 21 and connect with other components.
  • the lower cover 23 can be understood as a structure adapted to the bottom of the cavity 21 in the height direction of the liquid injection device, used to cover the bottom of the cavity 21 and connect with other components.
  • the second through hole can be understood as a hole completely penetrating through the lower cover 23 along the height direction of the liquid injection device.
  • the third through hole can be understood as a hole completely penetrating through the upper cover 22 along the height direction of the liquid injection device.
  • the driving mechanism can be understood as a device that can provide a power source and transmit power to drive other moving parts or machinery to move in a desired motion mode.
  • the driving mechanism can be understood as driving the liquid injection cup 20 A device that moves downwards in the height direction.
  • the first position can be understood as the height position of the liquid injection cup 20 when it is not driven by the driving mechanism.
  • the second position can be understood as the height position of the liquid injection cup 20 when the lower end of the liquid injection tube 12 abuts against the baffle 13 and is in an ideal position.
  • the height position refers to a certain space point along the height direction of the liquid injection device;
  • the ideal position refers to when the liquid to be injected that flows out after the liquid injection pipe 12 moves downward against the baffle 13 just enters the liquid injection port 500, The position where the lowest point of the lower end of the injection tube 12 stops.
  • the lower end of the liquid injection tube 12 can be avoided from being too high relative to the liquid injection port 500, so that the liquid to be injected is easily splashed on the outside of the liquid injection port 500 or other objects to cause waste and pollution;
  • the part of the tube 12 extending toward the liquid injection port 500 is too long, so that the outside of the tube wall of the liquid injection tube 12 touches the liquid to be injected or touches the liquid injection port 500 .
  • the liquid blocking rod 30 can be understood as a strip-shaped structure extending along the height direction of the liquid injection device.
  • the liquid blocking rod 30 By arranging the liquid injection cup 20, the driving mechanism, and the liquid blocking rod 30, when the driving mechanism is not driving the liquid injection cup 20, the liquid blocking rod 30 closely abuts against the upper end of the liquid injection tube 12, so that the liquid injection cup 20 The liquid to be injected in the cavity 21 cannot flow into the liquid injection tube 12; when the driving mechanism drives the liquid injection cup 20 to make the liquid injection cup 20 reach the second position, correspondingly, the liquid injection cup 20 is also driven and fixed to pass through it.
  • the liquid injection pipe 12 of the lower cover 23 moves downward until its lower end reaches the ideal position. At this time, the liquid blocking rod 30 is separated from the liquid injection pipe 12, and the liquid injection pipe 12 is connected with the cavity 21. The upper end of the upper end flows down to the lower end thereof, thereby entering the liquid injection port 500 to realize liquid injection.

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Abstract

本申请实施例提供了一种注液嘴及具有其的注液装置，该注液嘴包括本体、注液管和挡板。本体具有沿注液嘴的高度方向设置的通道，该通道的下部设有第一出口。注液管，以沿该高度方向往复运动的方式穿设于该通道。挡板与本体连接，且配置为在注液管的下端部高于第一出口时覆盖第一出口、在注液管的下端部低于第一出口时被注液管抵开。本申请实施例提供的注液嘴，可以阻隔注液管的下端部滴落的残液，从而降低残液对外界环境及其他物体的影响，以减少污染，而且通过可活动的注液管来输送待注液体，还可以避免本体的内壁附着待注液体，尤其对于具有腐蚀性的待注液体，通过更换适用材质的注液管即可，注液嘴的通用性及可维护性更强。

Description

注液嘴及具有其的注液装置
交叉引用
本申请引用于2022年1月4日递交的名称为“注液嘴及具有其的注液装置”的第202210002258.X号中国专利申请，其通过引用被全部并入本申请。
技术领域
本申请涉及电池技术领域，特别是涉及一种注液嘴及具有其的注液装置。
背景技术
本部分提供的仅仅是与本申请相关的背景信息，其并不必然是现有技术。
在电池生产过程中，需要向电池单体的壳体内注入电解液作为导电介质。一般而言，电池单体的壳体一端设有用于注液的开口，在电解液灌注的工序中，注液泵抽取电解液通过注液嘴从该开口注入电池单体的内部，然后再对该开口进行密封。但在一些情形下，利用注液嘴进行注液，注液嘴的橡胶内壁很容易附着残余的电解液，残余的电解液形成结晶会造成电解液污染。因此，如何降低残液的污染，是本领域亟需解决的技术问题。
发明内容
本申请实施例的目的在于提供一种注液嘴及具有其的注液装置，以降低残液的污染。具体技术方案如下：
本申请第一方面的实施例提供了一种注液嘴，包括本体、注液管和挡板。本体具有沿注液嘴的高度方向设置的通道，通道的下部设有第一出口。注液管以沿高度方向往复运动的方式穿设于通道。挡板与本体连接，且配置为在注液管的下端部高于第一出口时覆盖第一出口、在注液管的下端部低于第一出口时被注液管抵开。
根据本申请第一方面的实施例提供的注液嘴，由于其注液管可以在其本体内所设的通道中沿注液嘴的高度方向往复运动，该通道的下部设有第一出口，其挡板与本体连接，且配置为在注液管的下端部高于该第一出口时覆盖该第一出口、在注液管的下端部低于该第一出口时被注液管抵开。这样，当需要注液时，将注液嘴的第一出口对准待注液腔体的注液口，可移动注液管抵开挡板，使注液管的下端部从第一出口通向本体外， 即伸向待注液腔体的注液口，待注液体由注液管的上端部输送至注液管的下端部以进入待注液腔体内实现注液；完成注液后，将注液管往回移动使其下端部复位于第一出口的上方，此时挡板覆盖第一出口，可以阻隔注液管的下端部滴落的残液，从而降低残液对外界环境及其他物体的影响，减少污染。而且，通过可活动的注液管来输送待注液体，还可以避免本体的内壁附着待注液体，尤其对于具有腐蚀性的待注液体，通过更换适用材质的注液管即可，注液嘴的通用性及可维护性更强。
在本申请的一些实施例中，注液嘴还包括弹簧，弹簧沿注液管的轴线方向设置于注液管与本体之间，且配置为在注液管相对本体向下运动时产生弹性形变。通过在注液管与本体之间沿注液管的轴线方向设置弹簧，当需要注液时，对注液管施力，使注液管克服弹簧的弹力向下运动并抵开挡板，此时注液管的下端部从第一出口伸向待注液腔体的注液口实现注液。完成注液后，取消对注液管施加的力，弹簧即在自身弹性作用下恢复原状，同时带动注液管向上运动，以实现注液管的自动复位，使得注液过程的操作更简便，且注液管较快地复位也能更好地降低积聚于注液管的下端部的残液滴落在其他物体上的风险。
在本申请的一些实施例中，注液嘴还包括与注液管连接的第一延伸部，第一延伸部沿注液管的直径方向外延于注液管的管壁，第一延伸部与弹簧的一端连接。通过设置沿注液管的直径方向外延于注液管的管壁的第一延伸部与弹簧的一端连接，第一延伸部垂直于注液管的轴线，更便于实现对弹簧的安装，使弹簧沿注液管的轴线方向设置于注液管与本体之间，且在注液管相对本体向下运动的过程中，第一延伸部能够对与其连接的弹簧产生压力或拉力以使弹簧产生弹性形变。
在本申请的一些实施例中，注液嘴还包括与第一延伸部相对设置的固定座，固定座固定于本体且与弹簧的另一端连接。通过设置与第一延伸部相对的固定座，使弹簧的另一端连接于固定座上，由于固定座固定于本体不可活动，当对注液管施力使注液管向下运动时，第一延伸部带动与其连接的弹簧的一端向靠近(或远离)固定座的方向移动，即可压缩(或拉伸)弹簧使弹簧产生弹性形变。举例来说，如果固定座是设置于与第一延伸部正对的下方，则注液管向下运动时，第一延伸部对弹簧产生压力，使弹簧在第一延伸部与固定座之间被压缩，除去外力，弹簧的一端抵住第一延伸部向上反弹，即使得注液管向上运动，恢复至初始位置。该初始位置可以理解为注液管在弹簧处于原状(未产生弹性形变)或未受外力驱动时所处的位置。
在本申请的一些实施例中，注液嘴还包括第二延伸部，第二延伸部的一端连接于第一延伸部，第二延伸部的另一端配置为在注液管向下运动预设距离后与固定座抵触。通过设置第二延伸部可以固定注液管向下运动的距离，当第二延伸部的另一端与固定座抵触，即注液管的下端部在抵开挡板后伸向注液口的位置便固定，从而避免注液管伸向注液口的部分过长，致使注液管的管壁外沾碰待注液体或触碰注液口。
在本申请的一些实施例中，注液嘴还包括限位筒，限位筒设置于本体内且配置为与注液管的管壁和/或第二延伸部的侧壁接触。通过在本体内设置与注液管的管壁和/或第二延伸部的侧壁接触的限位筒，可以提高注液管沿注液嘴的高度方向往复运动的平稳性，进而避免注液管的下端部伸向注液口后由于自身偏摆而与注液口的侧壁产生刮擦。
在本申请的一些实施例中，限位筒还配置为与第一延伸部接触。通过设置限位筒与第一延伸部接触，可以使得在除去对注液管施加的外力后，注液管能够更好地自动恢复至初始位置停驻。
在本申请的一些实施例中，挡板以可拆卸的方式连接于本体与固定座之间。由于挡板用于阻隔注液管的下端部滴落的残液，因此其表面经常会接触、附着有残液，尤其对于具有腐蚀性的液体，挡板较容易受损，因此，通过将挡板以可拆卸的方式连接于本体与固定座之间，可以更方便清洗、维护挡板以及对挡板实施更换。
在本申请的一些实施例中，挡板包括设置有多个第一通孔的固定环和多个扇形弹性片，多个扇形弹性片的弧形边缘内嵌于固定环且通过穿设于第一通孔的螺栓与固定环连接，螺栓同时还穿设于本体与固定座。通过设置固定环和多个扇形弹性片，一方面更便于实现将挡板固定于本体的可覆盖第一出口的位置，另一方面也使得在注液管的下端部向上运动至高于第一出口时挡板的扇形弹性片能够自动恢复原状，以实现在注液完成后，注液管复位，挡板恢复至覆盖第一出口的状态阻隔由注液管中滴落的残液。
在本申请的一些实施例中，注液管设有导流部，从注液管的上端部到注液管的下端部的方向，导流部的直径逐渐减小。通过设置直径从注液管的上端部到注液管的下端部逐渐减小的导流部，可以使得注液管中的待注液体由上至下流动至导流部后，能够集中汇流成一股直径较细的液柱进入注液口，以更好地避免待注液体溅落在其他部件及物体上。
在本申请的一些实施例中，挡板设有与导流部相适配的斜面。通过设置与导流部相适配的斜面，在注液管向下运动时，有助于注液管与挡板实现抵触配合，且更易抵开挡板。
本申请第二方面的实施例提供了一种注液装置，包括根据本申请第一方面的实施例提供的注液嘴。
根据本申请第二方面的实施例提供的注液嘴，由于其注液嘴的注液管可以在其本体内所设的通道中沿注液嘴的高度方向往复运动，该通道的下部设有第一出口，其挡板与本体连接，且配置为在注液管的下端部高于该第一出口时覆盖该第一出口、在注液管的下端部低于该第一出口时被注液管抵开，这样，当需要注液时，将注液嘴的第一出口对准待注液腔体的注液口，驱动注液管抵开挡板，可使注液管的下端部从第一出口通向本体外，即伸向待注液腔体的注液口，待注液体由注液管的上端部输送至注液管的下端部以进入待注液腔体内实现注液；完成注液后，将注液管往回移动使其下端部复位于第一出口的上方，此时挡板覆盖第一出口，可以阻隔注液管的下端部滴落的残液，从而降低残液对外界环境及其他物体的影响，减少污染。而且，通过可活动的注液管来输送待注液体，还可以避免本体的内壁附着待注液体，尤其对于具有腐蚀性的待注液体，通过更换适用材质的注液管即可，注液嘴的通用性及可维护性更强。
在本申请的一些实施例中，注液装置还包括注液杯、驱动机构和阻液杆。注液杯，包括用于容纳电解液的腔体、设置于腔体的一端的上盖、以及设置于腔体的另一端的下盖，下盖设有第二通孔，注液嘴的注液管固定穿设于第二通孔且与腔体连通，上盖设有第三通孔。驱动机构，驱动机构用于驱动注液杯从第一位置运动至第二位置。阻液杆，阻液杆的位置固定且穿设于第三通孔，阻液杆的一端配置为与注液管的上端部紧密抵接且在注液杯到达第二位置时脱离注液管。
通过设置注液杯、驱动机构、以及阻液杆，当驱动机构未对注液杯实施驱动时，阻液杆紧密抵接注液管的上端部，使注液杯的腔体中的待注液体无法流入注液管；当驱动机构对注液杯实施驱动使注液杯到达第二位置时，相应地，注液杯也带动固定穿设于其下盖的注液管向下运动至其下端部到达理想位置，此时阻液杆脱离注液管，注液管与腔体连通，待注液体便从注液管的上端部向下流至其下端部，从而进入注液口，实现注液。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是 本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的注液嘴的一种结构示意图；
图2为本申请实施例提供的注液嘴的另一种结构示意图；
图3为本申请实施例提供的挡板的俯视图及其正视的截面剖视图；
图4为本申请实施例提供的一种注液装置的结构示意图。
具体实施方式中的附图标号如下：
10-注液嘴；11-本体；12-注液管；13-挡板；
14-固定座；15-限位筒；16-弹簧；
121-第一延伸部；122-第二延伸部；123-导流部；
131-固定环；1311-第一通孔；132-扇形弹性片；1301-斜面；
151-第一限位部；152-第二限位部；
20-注液杯；21-腔体；22-上盖；23-下盖；
30-阻液杆；
500-注液口。
具体实施方式
下面将结合附图对本申请技术方案的实施例进行详细的描述。以下实施例仅用于更加清楚地说明本申请的技术方案，因此只作为示例，而不能以此来限制本申请的保护范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本文中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。
在本申请实施例的描述中，技术术语“第一”“第二”等仅用于区别不同对象，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量、特定顺序或主次关系。在本申请实施例的描述中，“多个”的含义是两个以上，除非另有明确具体的限定。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定 均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本申请实施例的描述中，术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请实施例的描述中，术语“多个”指的是两个以上(包括两个)，同理，“多组”指的是两组以上(包括两组)，“多片”指的是两片以上(包括两片)。
在本申请实施例的描述中，技术术语“中心”“纵向”“横向”“长度”“宽度”“高度”“上”“下”“前”“后”“左”“右”“竖直”“水平”“顶”“底”“内”“外”“顺时针”“逆时针”“轴向”“径向”“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请实施例的限制。
在本申请实施例的描述中，除非另有明确的规定和限定，技术术语“安装”“相连”“连接”“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；也可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
本申请实施例所提到的电池是指包括一个或多个电池单体以提供更高的电压和容量的单一的物理模块。在电池中，电池单体可以是多个，多个电池单体之间可串联或并联或混联，混联是指多个电池单体中既有串联又有并联。多个电池单体之间可直接串联或并联或混联在一起，再将多个电池单体构成的整体容纳于箱体内；当然，电池也可以是多个电池单体先串联或并联或混联组成电池模块形式，多个电池模块再串联或并联或混联形成一个整体，并容纳于箱体内。电池还可以包括其他结构，例如，该电池还可以包括汇流部件，用于实现多个电池单体之间的电连接。例如，本申请中所提到的电池可以包括电池模组或电池包等。
其中，每个电池单体可以为二次电池或一次电池，还可以是锂离子电池、锂硫电池、钠离子电池或镁离子电池等，但不局限于此。电池单体可呈圆柱体、扁平体、长方体或其它形状等。
电池单体是指组成电池的最小单元。电池单体包括有端盖、壳体、电芯组件以及其他的功能性部件。一个电池单体的壳体内可以包含一个或更多个电芯组件。
端盖是指盖合于壳体的开口处以将电池单体的内部环境隔绝于外部环境的部件。不限地，端盖的形状可以与壳体的形状相适应以配合壳体。在一些实施例中，端盖可以由具有一定硬度和强度的材质(如铝合金)制成，这样，端盖在受挤压碰撞时就不易发生形变，使电池单体能够具备更高的结构强度，安全性能也可以有所提高。端盖上可以设置有如电极端子等的功能性部件。电极端子可以用于与电芯组件电连接，以用于输出或输入电池单体的电能。在一些实施例中，端盖上还可以设置有用于在电池单体的内部压力或温度达到阈值时泄放内部压力的泄压机构。端盖的材质也可以是多种的，比如，铜、铁、铝、不锈钢、铝合金、塑胶等，本申请实施例对此不作特殊限制。在一些实施例中，在端盖的内侧还可以设置有绝缘件，绝缘件可以用于隔离壳体内的电连接部件与端盖，以降低短路的风险。示例性的，绝缘件可以是塑料、橡胶等。
壳体是用于配合端盖以形成电池单体的内部环境的组件，其中，形成的内部环境可以用于容纳电芯组件、电解液以及其他部件。壳体和端盖可以是独立的部件，可以于壳体上设置开口，通过在开口处使端盖盖合开口以形成电池单体的内部环境。不限地，也可以使端盖和壳体一体化，具体地，端盖和壳体可以在其他部件入壳前先形成一个共同的连接面，当需要封装壳体的内部时，再使端盖盖合壳体。壳体可以是多种形状和多种尺寸的，例如长方体形、圆柱体形、六棱柱形等。具体地，壳体的形状可以根据电芯组件的具体形状和尺寸大小来确定。壳体的材质可以是多种，比如，铜、铁、铝、不锈钢、铝合金、塑胶等，本申请实施例对此不作特殊限制。
电芯组件是电池单体中发生电化学反应的部件。壳体内可以包含一个或更多个电芯组件。电芯组件主要由正极片和负极片卷绕或层叠放置形成，并且通常在正极片与负极片之间设有隔膜。正极片和负极片具有活性物质的部分构成电芯组件的主体部，正极片和负极片不具有活性物质的部分各自构成极耳。正极极耳和负极极耳可以共同位于主体部的一端或是分别位于主体部的两端。在电池的充放电过程中， 正极活性物质和负极活性物质与电解液发生反应，极耳连接电极端子以形成电流回路。
电池单体可呈圆柱体、扁平体、长方体或其它形状等，本申请实施例中对此不做特殊限制。电池单体一般按封装的方式分成三种：圆柱电池单体、方体方形电池单体和软包电池单体，本申请实施例对此也不限制。本申请实施例中的电池单体可以但不限用于车辆、船舶或飞行器等用电装置中。
在电池生产过程中，需要向电池单体的壳体内注入电解液作为导电介质。一般而言，电池单体的壳体一端设有用于注液的开口，在电解液灌注的工序中，注液泵抽取电解液通过注液嘴从该开口注入电池单体的内部，然后再对该开口进行密封。但目前利用相关技术中的注液嘴进行注液，注液嘴的橡胶内壁很容易附着残余的电解液，残余的电解液形成结晶会造成电解液污染，且停止注液后，注液嘴内残余的电解液在自身重力作用下向注液嘴端部开口积聚，当积聚的电解液重力大于注液嘴的内壁对电解液的吸附力时，电解液就会发生滴落，使得电解液沾附在电池单体的表面，进而导致电池单体的损伤，甚至会形成对其他电池单体的交叉污染，造成更多的电池单体报废，而使得电池的不良率升高。
基于以上考虑，为了解决残余电解液的污染问题，申请人经过深入研究，提出了一种注液嘴，其本体内腔设置有可活动的注液管来实现对电解液的输送，且在注液嘴的出口设置有包括弹性件的挡板，该挡板覆盖注液嘴的出口，当需要注液时，移动注液管使其抵开挡板后伸向电池单体的壳体上所开设的注液口，完成注液后，将注液管往回移动使其复位，挡板在其弹性件的弹力作用下也自动恢复至覆盖注液嘴的出口的状态。通过设计可活动的注液管，一方面，可以避免注液嘴的本体内壁附着电解液，从而减少电解液形成电解液结晶的情况，减少电解液污染，另一方面，完成注液后，积聚于注液管端部的残液下滴后可以被覆盖于注液嘴的出口的挡板阻隔，从而降低残液腐蚀其他物体的风险。
本申请实施例公开的注液嘴可以应用于任何需要输送液体的场景，尤其是在输送有害液体(如一些具有毒性、腐蚀性、反应性、或污染性的液体)时，应用本申请实施例公开的注液嘴，可以降低有害液体接触其他部件或其他物体的风险，从而使生产更规范化，提高产品良率。
鉴于此，如图1至图3所示，本申请第一方面的实施例提供了一种注液嘴10，包括本体11、注液管12以及挡板13。其中，本体11具有沿注液嘴10的高度方向设 置的通道，该通道的下部设有第一出口；注液管12以沿该高度方向往复运动的方式穿设于该通道；挡板13与本体11连接，且配置为在注液管12的下端部高于该第一出口时覆盖该第一出口、在注液管12的下端部低于该第一出口时被注液管12抵开。
注液嘴10是一种与待注液腔体的注液口500相适配且用于向该注液口500输送待注液体的装置。举例来说，在本申请实施例中，待注液腔体可以是电池单体的壳体所形成的空腔，待注液体则为适于该电池单体的电解液，例如，如果该电池单体为锂离子电池，该电解液的主要溶剂是含碳酸乙烯酯、碳酸二甲酯、碳酸甲乙酯以及碳酸二乙酯等；如果该电池单体为锂锰一次电池，该电解液的主要溶剂是含碳酸丙烯酯、乙二醇二甲醚等。注液口500即可以理解为电池单体的壳体上所开设的用于待注液体进入待注液腔体的开口。
本体11可以理解为注液嘴10中形成有中空空间的壳体，用于容纳或连接、安装注液嘴10中的其他部件。
通道可以理解为本体11所形成的中空空间的贯穿至本体11的高度方向的两端的部分。
第一出口可以理解为位于通道的下部能通向本体11外面的开口，第一出口的结构形状及尺寸可以与通道的结构形状、尺寸相同，也可以不同，本申请对此不做特殊限制，但至少第一出口的尺寸需大于或等于通道的尺寸，以便于穿设于通道的注液管12能够从第一出口顺利通过。
注液管12可以理解为一种空心的柱形结构，其沿注液嘴10的高度方向延伸的两端贯通。在本申请实施例中，通过注液管12可以将待注液体从其上端部输送至其下端部。
根据本申请第一方面的实施例提供的注液嘴10，由于其注液管12可以在其本体11内所设的通道中沿注液嘴10的高度方向往复运动，该通道的下部设有第一出口，其挡板13与本体11连接，且配置为在注液管12的下端部高于该第一出口时覆盖该第一出口、在注液管12的下端部低于该第一出口时被注液管12抵开，这样，当需要注液时，将注液嘴10的第一出口对准待注液腔体的注液口500，移动注液管12抵开挡板13，可使注液管12的下端部从第一出口通向本体11外，即伸向待注液腔体的注液口500，待注液体由注液管12的上端部输送至注液管12的下端部以进入待注液腔体内实现注液；完成注液后，将注液管12往回移动使其下端部复位于第一出口的上方，此时挡板13覆盖第一出口，可以阻隔注液管12的下端部滴落的残液， 从而降低残液对外界环境及其他物体的影响，减少污染。而且，通过可活动的注液管12来输送待注液体，还可以避免本体11的内壁附着待注液体，尤其对于具有腐蚀性的待注液体，通过更换适用材质的注液管12即可，注液嘴10的通用性及可维护性更强。
在本申请的一些实施例中，如图1和图2所示，注液嘴10还包括弹簧16，弹簧16沿注液管12的轴线方向设置于注液管12与本体11之间，且配置为在注液管12相对本体11向下运动时产生弹性形变。
弹簧16是一种用弹性材料(如弹簧钢)制成的零件，其在受外力作用时会产生弹性形变，除去外力后在自身弹性作用下可以恢复原状。
通过在注液管12与本体11之间沿注液管12的轴线方向设置弹簧16，当需要注液时，对注液管12施力，使注液管12克服弹簧16的弹力向下运动并抵开挡板13，此时注液管12的下端部从第一出口伸向待注液腔体的注液口500实现注液，完成注液后，取消对注液管12施加的力，弹簧16即在自身弹性作用下恢复原状，同时带动注液管12向上运动，以实现注液管12的自动复位，使得注液过程的操作更简便，且注液管12较快地复位也能更好地降低积聚于注液管12的下端部的残液滴落在其他物体上的风险。
在本申请的一些实施例中，如图1和图2所示，注液嘴10还包括与注液管12连接的第一延伸部121，第一延伸部121沿注液管12的直径方向外延于注液管12的管壁，第一延伸部121与弹簧16的一端连接。
第一延伸部121可以理解为垂直于注液管12的轴线设置在注液管12的管壁外侧的结构，第一延伸部121具有一定的硬度及强度，例如可以是金属材质制成的板结构，以在注液管12向下运动时能够提供克服弹簧16的弹力做功的反作用力。
通过设置沿注液管12的直径方向外延于注液管12的管壁的第一延伸部121与弹簧16的一端连接，第一延伸部121垂直于注液管12的轴线，更便于实现对弹簧16的安装，使弹簧16沿注液管12的轴线方向设置于注液管12与本体11之间，且在注液管12相对本体11向下运动的过程中，第一延伸部121能够对与其连接的弹簧16产生压力或拉力以使弹簧16产生弹性形变。
在本申请的一些实施例中，如图1和图2所示，注液嘴10还包括与第一延伸部121相对设置的固定座14，固定座14固定于本体11且与弹簧16的另一端连接。
固定座14可以理解为一种对两个或多个零件起连接作用、并对部分零件起支承作用的部件，其位置固定。
通过设置与第一延伸部121相对的固定座14，使弹簧16的另一端连接于固定座14上，由于固定座14固定于本体11不可活动，当对注液管12施力使注液管12向下运动时，第一延伸部121带动与其连接的弹簧16的一端向靠近(或远离)固定座14的方向移动，即可压缩(或拉伸)弹簧16使弹簧16产生弹性形变。举例来说，如果固定座14是设置于与第一延伸部121正对的下方，则注液管12向下运动时，第一延伸部121对弹簧16产生压力，使弹簧16在第一延伸部121与固定座14之间被压缩，除去外力，弹簧16的一端抵住第一延伸部121向上反弹，即使得注液管12向上运动，恢复至初始位置。该初始位置可以理解为注液管12在弹簧16处于原状(未产生弹性形变)或未受外力驱动时所处的位置。
在本申请的一些实施例中，如图1和图2所示，注液嘴10还包括第二延伸部122，第二延伸部122的一端连接于第一延伸部121，第二延伸部122的另一端配置为在注液管12向下运动预设距离后与固定座14抵触。
预设距离是预先设定的注液管12的可移动行程的最大值，在弹簧16未产生弹性形变的情况下，沿注液管12的轴线方向，第二延伸部122的另一端与固定座14之间的最大距离即等于该预设距离。
第二延伸部122可以理解为从第一延伸部121的远离注液管12的管壁的一端向下沿注液管12的轴线延伸的结构，这种情况下，固定座14的位置在第一延伸部121的下方，第二延伸部122的长度根据预设距离以及固定座14的位置设定。第二延伸部122可以与第一延伸部121为相同材质一体成型，且第一延伸部121也可以与注液管12一体成型。
通过设置第二延伸部122可以固定注液管12向下运动的距离，当第二延伸部122的另一端与固定座14抵触，即注液管12的下端部在抵开挡板13后伸向注液口500的位置便固定，从而避免注液管12伸向注液口500的部分过长，致使注液管12的管壁外沾碰待注液体或触碰注液口500。
在本申请的一些实施例中，如图1和图2所示，注液嘴10还包括限位筒15，限位筒15设置于本体11内且配置为与注液管12的管壁和/或第二延伸部122的侧壁接触。
限位筒15可以理解为用于限制零件保持在正确的方向做直线运动的、绕该正确的方向形成的筒状结构。举例来说，在本申请实施例中，如图1所示，限位筒15可以包括绕注液管12的轴线设置的第一限位部151、以及垂直于第一限位部151设置的第二限位部152，第一限位部151的侧壁可以与第二延伸部的侧壁接触，第二限位部152则设计为与注液管12的管壁接触，这样，在注液管12沿注液嘴10的高度方向(即注液管12的轴线方向)做直线运动的过程中，第一限位部151、第二限位部152可以同时限制注液管12在其径向发生偏摆。
可见，通过在本体11内设置与注液管12的管壁和/或第二延伸部122的侧壁接触的限位筒15，可以提高注液管12沿注液嘴10的高度方向往复运动的平稳性，进而避免注液管12的下端部伸向注液口500后由于自身偏摆而与注液口500的侧壁产生刮擦。
在本申请的一些实施例中，如图1所示，限位筒15还配置为与第一延伸部121接触。
在一些实施例中，第一限位部151的远离第二限位部152的一端可以连接于固定座14，根据固定座14的位置以及注液管12未受外力驱动时第一延伸部121所处的位置来确定第一限位部151长度，使第二限位部152设置在当注液管12未受外力驱动时第一延伸部121所处的位置的上方，且刚好与第一延伸部121接触。这样，当弹簧16在第一延伸部121与固定座14之间被压缩，除去对注液管12施加的外力后，弹簧16的一端抵住第一延伸部121向上反弹，由于第二限位部152的位置固定，因此第一延伸部121向上运动至与第二限位部152碰触即停止运动，此时注液管12即恢复至初始位置。
可见，通过设置限位筒15与第一延伸部121接触，可以使得在除去对注液管12施加的外力后，注液管12能够更好地自动恢复至初始位置停驻。
在本申请的一些实施例中，如图1至图3所示，挡板13以可拆卸的方式连接于本体11与固定座14之间。
由于挡板13用于阻隔注液管12的下端部滴落的残液，因此其表面经常会接触、附着有残液，尤其对于具有腐蚀性的液体，挡板13较容易受损，因此，通过将挡板13以可拆卸的方式连接于本体11与固定座14之间，可以更方便清洗、维护挡板13以及对挡板13实施更换。
在本申请的一些实施例中，如图3所示，挡板13包括设置有多个第一通孔1311的固定环131和多个扇形弹性片132，多个扇形弹性片132的弧形边缘内嵌于固定环131且通过穿设于第一通孔1311的螺栓与固定环131连接，螺栓同时还穿设于本体11与固定座14。
固定环131是一种呈环状的零件，用于固定挡板13的位置，举例来说，其可以是金属制成的，以便于与其他零件进行固定连接且不易发生形变，具有一定的硬度和强度，被固定安装后能够保持自身的位置及状态不变。环状在几何学中通常是指圆环，可以理解为一个大圆盘去除一个小同心圆盘剩下的实体部分，其对称性较强，是一个以圆心为对称中心的中心对称图形，也是有无限条对称轴的轴对称图形。
扇形弹性片132可以理解为能够产生弹性形变且可自动恢复原状的、呈扇形的片状结构。扇形是指由圆心角的两条半径和圆心角所对的弧围成的图形。使注液管12的轴线对准固定环131的圆心设置，多个扇形弹性片132的弧形边缘内嵌于固定环131，以填充固定环131的内圈覆盖第一出口，这样，当注液管12向下运动接触扇形弹性片132时，由于扇形弹性片132的尖部较容易被抵开，同时多个扇形弹性片132可以同时被抵开，结构的使用稳定性更强。
第一通孔1311可以理解为固定环131上完全贯穿其实体部分的孔。
螺栓是一种机械紧固件，通常包括头部和螺杆(带有外螺纹的圆柱体)。螺栓连接是用于两个及以上零件的可拆卸的固定连接方式，通常至少一个被连接件上开有通孔、至少一个被连接件设有具有与螺栓上的外螺纹相适配的内螺纹的孔，以利用螺栓的螺杆与通孔之间的配合、外螺纹与内螺纹之间的配合，通过旋动螺栓将各被连接件固定连接至一起；反方向旋动螺栓使螺栓的螺杆从通孔中旋出，即可实现对各被连接件的拆卸，拆装操作更方便。在本申请实施例中，利用螺栓同时穿设本体11、固定环131、扇形弹性片132、以及固定座14，以实现扇形弹性片132与固定环131的连接并使挡板13是以可拆卸的方式连接于本体11与固定座14之间。
通过设置固定环131和多个扇形弹性片132，一方面更便于实现将挡板13固定于本体11的可覆盖第一出口的位置，另一方面也使得在注液管12的下端部向上运动至高于第一出口时挡板13的扇形弹性片132能够自动恢复原状，以实现在注液完成后，注液管12复位，挡板13恢复至覆盖第一出口的状态阻隔由注液管12中滴落的残液。
在本申请的一些实施例中，注液管12设有导流部123，从注液管12的上端部到注液管12的下端部的方向，导流部123的直径逐渐减小。
导流部123可以理解为注液管12中用于为待注液体提供导向作用的部分。如图1和图2所示，可以在注液管12的下端部设置导流部123。
通过设置直径从注液管12的上端部到注液管12的下端部逐渐减小的导流部123，可以使得注液管12中的待注液体由上至下流动至导流部123后，能够集中汇流成一股直径较细的液柱进入注液口500，以更好地避免待注液体溅落在其他部件及物体上。
在本申请的一些实施例中，挡板13设有与导流部123相适配的斜面1301。
斜面1301可以理解为与挡板13上的某一平面成一倾斜角度的平面，该倾斜角度通常为锐角。举例来说，如图3所示，在本申请实施例中，斜面1301可以是扇形弹性片132的与其下表面成一倾斜角度的上表面。
通过设置与导流部123相适配的斜面1301，在注液管12向下运动时，有助于注液管12与挡板13实现抵触配合，且更易抵开挡板13。
在本申请的一些实施例中，如图1至图3所示，注液嘴10包括本体11、注液管12、挡板13、固定座14、限位筒15、以及弹簧16。其中，本体11具有沿注液嘴10的高度方向设置的通道，该通道的下部设有第一出口；注液管12以沿该高度方向往复运动的方式穿设于该通道，注液管12包括第一延伸部121和第二延伸部122，第一延伸部121与弹簧16的一端连接；固定座与第一延伸部121相对设置，固定座14固定于本体11且与弹簧16的另一端连接，第二延伸部122的另一端配置为在注液管12向下运动预设距离后与固定座14抵触；弹簧16配置为在注液管12相对本体11向下运动时产生弹性形变；弹簧16配置为在注液管12相对本体11向下运动时产生弹性形变；限位筒15与固定座14连接且配置为与注液管12的管壁、第一延伸部121的上表面、以及第二延伸部122的侧壁接触；挡板13以可拆卸的方式连接于本体11与固定座14之间，包括固定环131和多个扇形弹性片132，多个扇形弹性片132的弧形边缘内嵌于固定环131且通过穿设于第一通孔1311的螺栓与固定环131连接，螺栓同时还穿设于本体11与固定座14，多个扇形弹性片132在注液管12的下端部高于该第一出口时覆盖该第一出口、在注液管12的下端部低于该第一出口时被注液管12抵开。
根据本申请实施例提供的注液嘴10，由于其注液管12可以在其本体11内所设的通道中沿注液嘴10的高度方向往复运动，该通道的下部设有第一出口，其挡板13的多个扇形弹性片132在注液管12的下端部高于该第一出口时覆盖该第一出口、在注液管12的下端部低于该第一出口时被注液管12抵开，这样，当需要注液时，将注液嘴10的第一出口对准待注液腔体的注液口500，移动注液管12抵开挡板13的多个扇形弹性片132，可使注液管12的下端部从第一出口通向本体11外，即伸向待注液腔体的注液口500，待注液体由注液管12的上端部输送至注液管12的下端部以进入待注液腔体内实现注液；完成注液后，弹簧16在自身弹性作用下恢复原状，同时带动注液管12向上运动，以实现注液管12的自动复位，使注液管12的下端部复位于第一出口的上方，此时多个弹性片132恢复原状覆盖第一出口，可以阻隔注液管12的下端部滴落的残液，从而降低残液对外界环境及其他物体的影响，减少污染。而且，通过可活动的注液管12来输送待注液体，还可以避免本体11的内壁附着待注液体，尤其对于具有腐蚀性的待注液体，通过更换适用材质的注液管12即可，注液嘴10的通用性及可维护性更强；通过设置与注液管12的管壁、第一延伸部121、以及第二延伸部122的侧壁接触的限位筒15，可以提高注液管12沿注液嘴10的高度方向往复运动的平稳性，避免注液管12的下端部伸向注液口500后由于自身偏摆而与注液口500的侧壁产生刮擦，同时使得在除去对注液管12施加的外力后，注液管12能够更好地自动恢复至初始位置停驻；第二延伸部122还可以固定注液管12向下运动的距离，当第二延伸部122的另一端与固定座14抵触，即注液管12的下端部在抵开挡板13后伸向注液口500的位置便固定，从而避免注液管12伸向注液口500的部分过长，致使注液管12的管壁外沾碰待注液体或触碰注液口500。
如图1至图4所示，本申请第二方面的实施例提供了一种注液装置，包括根据本申请第一方面的实施例提供的注液嘴10。
根据本申请第二方面的实施例提供的注液嘴10，由于其注液嘴10的注液管12可以在其本体11内所设的通道中沿注液嘴10的高度方向往复运动，该通道的下部设有第一出口，其挡板13与本体11连接，且配置为在注液管12的下端部高于该第一出口时覆盖该第一出口、在注液管12的下端部低于该第一出口时被注液管12抵开，这样，当需要注液时，将注液嘴10的第一出口对准待注液腔体的注液口500，驱动注液管12抵开挡板13，可使注液管12的下端部从第一出口通向本体11外，即伸向待注液腔体的注液口500，待注液体由注液管12的上端部输送至注液管12的下 端部以进入待注液腔体内实现注液；完成注液后，将注液管12往回移动使其下端部复位于第一出口的上方，此时挡板13覆盖第一出口，可以阻隔注液管12的下端部滴落的残液，从而降低残液对外界环境及其他物体的影响，减少污染。而且，通过可活动的注液管12来输送待注液体，还可以避免本体11的内壁附着待注液体，尤其对于具有腐蚀性的待注液体，通过更换适用材质的注液管12即可，注液嘴10的通用性及可维护性更强。
在本申请的一些实施例中，如图4所示，该注液装置还包括注液杯20、驱动机构、以及阻液杆30。注液杯20包括用于容纳电解液的腔体21、设置于腔体21的一端的上盖22、以及设置于腔体21的另一端的下盖23，下盖23设有第二通孔，注液嘴10的注液管12固定穿设于第二通孔且与腔体21连通，上盖22设有第三通孔；驱动机构用于驱动注液杯20从第一位置运动至第二位置；阻液杆30的位置固定且穿设于第三通孔，阻液杆30的一端配置为与注液管12的上端部紧密抵接且在注液杯20到达第二位置时脱离注液管12。
注液杯20可以理解为用于储存待注液体且配置为在实施注液操作时为注液管12提供待注液体的容器。
腔体21可以理解为一种使待注液体与外界隔绝的内部为空心的结构。
上盖22可以理解为在注液装置的高度方向与腔体21的顶部相适配、用于覆盖腔体21的顶部并与其他部件连接的结构。
下盖23可以理解为在注液装置的高度方向与腔体21的底部相适配、用于覆盖腔体21的底部并与其他部件连接的结构。
第二通孔可以理解为沿注液装置的高度方向完全贯穿于下盖23的孔。
第三通孔可以理解为沿注液装置的高度方向完全贯穿于上盖22的孔。
驱动机构可以理解为能够提供动力源并传递动力以驱使其他运动部件或机械按照期望的运动方式运动的装置，在本申请实施例中，驱动机构可以理解为驱使注液杯20沿注液装置的高度方向向下运动的装置。
第一位置可以理解为注液杯20在未被驱动机构带动的情况所处的高度位置。第二位置可以理解为当注液管12的下端部抵开挡板13后处于理想位置时注液杯20所处的高度位置。其中，高度位置是指沿注液装置的高度方向的某个空间点；理想位置是指注液管12向下运动抵开挡板13后流出的待注液体刚好能进入注液口500时，注液管12的下端部的最低点所停驻的位置。举例来说，在本申请实施例中，如 图2所示，注液管12向下运动抵开挡板13后，注液管12的下端部的最低点与注液口500的上表面平齐，这样，既能避免注液管12的下端部相对注液口500过高，而使得待注液体容易飞溅于注液口500的外部或其他物体上造成浪费及污染；又能避免注液管12伸向注液口500的部分过长，致使注液管12的管壁外沾碰待注液体或触碰注液口500。
阻液杆30可以理解为一根沿注液装置的高度方向延伸的长条状的结构。
通过设置注液杯20、驱动机构、以及阻液杆30，当驱动机构未对注液杯20实施驱动时，阻液杆30紧密抵接注液管12的上端部，使注液杯20的腔体21中的待注液体无法流入注液管12；当驱动机构对注液杯20实施驱动使注液杯20到达第二位置时，相应地，注液杯20也带动固定穿设于其下盖23的注液管12向下运动至其下端部到达理想位置，此时阻液杆30脱离注液管12，注液管12与腔体21连通，待注液体便从注液管12的上端部向下流至其下端部，从而进入注液口500，实现注液。
以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围，其均应涵盖在本申请的权利要求和说明书的范围当中。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
本申请的各个实施例均采用相关的方式描述，各个实施例之间相同相似的部分互相参见即可，每个实施例重点说明的都是与其他实施例的不同之处。
以上所述仅为本申请的较佳实施例，并非用于限定本申请的保护范围。凡在本申请的精神和原则之内所作的任何修改、等同替换、改进等，均包含在本申请的保护范围。

Claims (13)

  1. 一种注液嘴(10)，包括：
    本体(11)，具有沿注液嘴(10)的高度方向设置的通道，所述通道的下部设有第一出口；
    注液管(12)，以沿所述高度方向往复运动的方式穿设于所述通道；
    挡板(13)，与所述本体(11)连接，且配置为在所述注液管(12)的下端部高于所述第一出口时覆盖所述第一出口、在所述注液管(12)的下端部低于所述第一出口时被所述注液管(12)抵开。
  2. 根据权利要求1所述的注液嘴(10)，其中，所述注液嘴(10)还包括弹簧(16)，所述弹簧(16)沿所述注液管(12)的轴线方向设置于所述注液管(12)与所述本体(11)之间，且配置为在所述注液管(12)相对所述本体(11)向下运动时产生弹性形变。
  3. 根据权利要求2所述的注液嘴(10)，其中，所述注液嘴(10)还包括与所述注液管(12)连接的第一延伸部(121)，所述第一延伸部(121)沿所述注液管(12)的直径方向外延于所述注液管(12)的管壁，所述第一延伸部(121)与所述弹簧(16)的一端连接。
  4. 根据权利要求3所述的注液嘴(10)，其中，所述注液嘴(10)还包括与所述第一延伸部(121)相对设置的固定座(14)，所述固定座(14)固定于本体(11)且与所述弹簧(16)的另一端连接。
  5. 根据权利要求4所述的注液嘴(10)，其中，所述注液嘴(10)还包括第二延伸部(122)，所述第二延伸部(122)的一端连接于所述第一延伸部(121)，所述第二延伸部(122)的另一端配置为在所述注液管(12)向下运动预设距离后与所述固定座(14)抵触。
  6. 根据权利要求5所述的注液嘴(10)，其中，所述注液嘴(10)还包括限位筒(15)，所述限位筒(15)设置于所述本体(11)内且配置为与所述注液管(12)的管壁和/或所述第二延伸部(122)的侧壁接触。
  7. 根据权利要求6所述的注液嘴(10)，其中，所述限位筒(15)还配置为与所述第一延伸部(121)接触。
  8. 根据权利要求4至7中任一项所述的注液嘴(10)，其中，所述挡板(13)以可拆卸的方式连接于所述本体(11)与所述固定座(14)之间。
  9. 根据权利要求8所述的注液嘴(10)，其中，所述挡板(13)包括设置有多个第一通孔(1311)的固定环(131)和多个扇形弹性片(132)，所述多个扇形弹性片(132)的弧形边缘内嵌于所述固定环(131)且通过穿设于所述第一通孔(1311)的螺栓与所述固定环(131)连接，所述螺栓同时还穿设于所述本体(11)与所述固定座(14)。
  10. 根据权利要求1至9中任一项所述的注液嘴(10)，其中，所述注液管(12)设有导流部(123)，从所述注液管(12)的上端部到所述注液管(12)的下端部的方向，所述导流部(123)的直径逐渐减小。
  11. 根据权利要求10所述的注液嘴(10)，其中，所述挡板(13)设有与所述导流部(123)相适配的斜面(1301)。
  12. 一种注液装置，包括根据权利要求1至11中任一项所述的注液嘴(10)。
  13. 根据权利要求12所述的注液装置，其中，所述注液装置还包括：
    注液杯(20)，所述注液杯(20)包括用于容纳电解液的腔体(21)、设置于所述腔体(21)的一端的上盖(22)、以及设置于所述腔体(21)的另一端的下盖(23)，所述下盖(23)设有第二通孔，所述注液嘴(10)的注液管(12)固定穿设于所述第二通孔且与所述腔体(21)连通，所述上盖(22)设有第三通孔；
    驱动机构，所述驱动机构用于驱动所述注液杯(20)从第一位置运动至第二位置；
    阻液杆(30)，所述阻液杆(30)的位置固定且穿设于所述第三通孔，所述阻液杆(30)的一端配置为与所述注液管(12)的上端部紧密抵接且在所述注液杯(20)到达所述第二位置时脱离所述注液管(12)。
PCT/CN2022/142776 2022-01-04 2022-12-28 注液嘴及具有其的注液装置 WO2023131024A1 (zh)

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