CN110504497B - Connecting device for maintaining and regenerating slurry battery and slurry battery system - Google Patents

Connecting device for maintaining and regenerating slurry battery and slurry battery system Download PDF

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Publication number
CN110504497B
CN110504497B CN201810479349.6A CN201810479349A CN110504497B CN 110504497 B CN110504497 B CN 110504497B CN 201810479349 A CN201810479349 A CN 201810479349A CN 110504497 B CN110504497 B CN 110504497B
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valve
hole
cylindrical
rotating body
liquid
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CN110504497A (en
Inventor
王玉伟
陈永翀
王之英
谢晨
张艳萍
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Nanjing Jingyu Energy Co ltd
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Beijing Hawaga Power Storage Technology Co ltd
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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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4214—Arrangements for moving electrodes or electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4242—Regeneration of electrolyte or reactants
    • 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
    • H01M50/691—Arrangements or processes for draining liquids from casings; Cleaning battery or cell casings
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Filling, Topping-Up Batteries (AREA)

Abstract

The invention provides a connecting device for maintenance and regeneration of a slurry battery. The first connecting part comprises a cylindrical shell, a plurality of connecting pipes arranged on the side wall of the cylindrical shell, a rotating body arranged in the cylindrical shell and an internal trigger mechanism arranged in the cylindrical shell. The inside of the rotating body is limited with a closed cavity, and the side wall of the rotating body is provided with a butt joint part. The second connecting part comprises a cylindrical valve body, a valve seat and a valve core which are arranged in the cylindrical valve body. The cylindrical shell can be connected with the cylindrical valve body, the butt joint part can enable at least one of the connecting pipes to be communicated with the sealed cavity along with the rotation of the rotating body, and the trigger mechanism can trigger the valve core to move so as to enable the first valve hole to be communicated with the gas channel; alternatively, the second valve bore is communicated with the liquid passage. The connecting device can realize a plurality of working procedures by one-time butting, and improves the maintenance and regeneration efficiency of the battery.

Description

Connecting device for maintaining and regenerating slurry battery and slurry battery system
Technical Field
The invention relates to the field of batteries, in particular to a connecting device for maintaining and regenerating a slurry battery and a slurry battery system.
Background
The slurry battery is a battery system with a slurry structure formed by mixing part or all of electrode materials with solid particles and electrolyte.
The lithium slurry battery is a novel capacity type energy storage battery and is applied to the fields of low-speed electric vehicles, base station energy storage and peak shaving energy storage. The electrode plate of the lithium slurry battery contains an electrode active conductive material layer, wherein the electrode active conductive material contains conductive particles (conductive agent particles or composite active material particles) which are suspended or precipitated in electrolyte in a certain proportion, and when the battery is impacted or vibrated from the outside, the conductive particles can move locally in the electrolyte to form a dynamic conductive network because the conductive particles are not bonded and fixed, so that the problems of battery capacity reduction, cycle life attenuation and the like caused by falling or loosening of the electrode material of the traditional lithium battery can be avoided.
The problems that the electrolyte is gradually invalid, the electrolyte is too little, the air pressure in the shell is higher and the like can occur in the long-term use process of the lithium slurry battery, the problems can be solved by utilizing battery maintenance regeneration equipment to carry out regeneration maintenance, and the lithium slurry battery is one of the unique advantages of the slurry battery. In the process of butting the battery maintenance regeneration equipment with the battery to be maintained, the gas-liquid operation is required not to be in direct contact with the external air environment. The regeneration and maintenance of the existing lithium slurry battery are all completed in a glove box, the maintenance steps are single, the operations of liquid injection, liquid drainage, gas injection and gas exhaust cannot be completed at one time, the operation is complex, and the efficiency is low.
Disclosure of Invention
In order to solve the problems, the invention provides a connecting device for maintaining and regenerating a slurry battery, which enables the slurry battery and a maintenance and regeneration device to be in butt joint safely and accurately and can complete key processes of liquid injection, liquid drainage, gas injection, gas exhaust and the like at one time.
The connecting device comprises a first connecting part used for being connected with the maintenance regeneration equipment and a second connecting part which can be butted with the first connecting part and is used for being connected with the battery to be maintained. The first connection portion includes: a cylindrical housing, a plurality of connection pipes, a rotating body, and a trigger mechanism. The plurality of connecting pipes are arranged on the side wall of the cylindrical shell. The rotating body is axially fixed and circumferentially rotatably arranged in the cylindrical shell. The rotating body is internally provided with a closed cavity, and the side wall of the rotating body is provided with a butt joint part for selectively communicating at least one of the connecting pipes with the closed cavity. The trigger mechanism is movably arranged in the cylindrical shell along the axial direction of the cylindrical shell, and can trigger the second connecting part when at least one of the connecting pipes is communicated with the sealed cavity. The second connection portion includes: the valve comprises a cylindrical valve body, a valve seat arranged in the cylindrical valve body and a valve core arranged above the valve seat in the cylindrical valve body. The valve seat is provided with a gas channel for gas injection or gas exhaust and a liquid channel for liquid injection or liquid drainage. The valve core is provided with a first valve hole for communicating the gas channel with the closed cavity and a second valve hole for communicating the liquid channel with the closed cavity. The butt joint part can enable at least one of the connecting pipes to be communicated with the sealed cavity along with the rotation of the rotating body, and the trigger mechanism can trigger the valve core to move so as to enable the first valve hole to be communicated with the gas channel; alternatively, the second valve bore is communicated with the liquid passage. Therefore, the connecting device can realize a plurality of processes at one time, does not need to repeatedly butt joint for a plurality of times aiming at different processes, and has simple operation and high efficiency.
Preferably, the maintenance regeneration includes one or more of gas injection, gas exhaust, liquid injection, and liquid drainage operations on the battery. Specifically, when the lithium slurry battery has gradual failure of the electrolyte, the lithium slurry battery can be subjected to a liquid replacement operation. When the electrolyte of the lithium slurry battery is too small, the lithium slurry battery can be subjected to liquid injection operation. When the air pressure in the lithium slurry battery shell is higher, the air exhaust operation can be carried out on the lithium slurry battery. When the air pressure in the lithium paste battery shell is lower, the air injection operation can be carried out on the lithium paste battery. It should be noted that the above operations of injecting gas, exhausting gas, injecting liquid and discharging liquid can be performed independently, or can be performed simultaneously according to specific situations.
Preferably, the plurality of connection pipes are integrally formed on the cylindrical housing; or the end parts of the plurality of connecting pipes horizontally penetrate through the side wall of the cylindrical shell, the end surfaces of the connecting pipes are arc-shaped surfaces capable of being in close contact with the surface of the rotating body, and the butting parts are through holes formed in the rotating body.
Preferably, the plurality of connection pipes includes a gas injection pipe, an exhaust pipe, a liquid injection pipe, and a liquid discharge pipe. The gas injection pipe and the gas exhaust pipe are circumferentially arranged at intervals on a first height of the cylindrical shell. The liquid injection pipe and the liquid discharge pipe are circumferentially arranged at intervals on a second height of the cylindrical shell. The butt joint part is a first through hole and a second through hole which correspond to the first height and the second height respectively and are staggered in the circumferential direction.
Preferably, the liquid injection pipe is disposed directly below the gas injection pipe. The exhaust pipe is spaced by a first included angle alpha relative to the gas injection pipe along the clockwise direction1Setting, the liquid discharge pipe is spaced by a second included angle alpha along the anticlockwise direction relative to the liquid injection pipe2And (4) setting. The circumferentially staggered angle of the first through hole and the second through hole is a third included angle alpha3Wherein α is1＝α2＝α3. Preferably, the first included angle α1And a second angle alpha2And a third angle alpha3Are all 90 degrees. Therefore, the working procedure is switched once when the rotary mechanism rotates by 90 degrees, and the rotary mechanism is not easy to be confused and is convenient to control the rotation angle during manual rotation. In addition, the problems of neutral gear and superposition can not occur in the switching process, and different station states are uniformly distributed among 360-degree circumferences.
Preferably, a first mark is formed on the cylindrical housing, and a second mark capable of aligning with the first mark to indicate whether the plurality of connection pipes are in an open or closed state is formed on the rotating body. Specifically, the first mark S and the second mark S' may be scales and pointers, grooves or protrusions, or marks distinguished by different colors.
Preferably, the trigger mechanism comprises an operating lever and an intermediate transmission mechanism abutting against the operating lever; the middle transmission mechanism can do lifting motion under the pressing of the operating rod to open the sealed cavity and trigger the valve core to move.
Preferably, the operating rod and the cylindrical shell are matched in a threaded mode to adjust the lifting of the intermediate transmission mechanism, or the operating rod and the intermediate transmission mechanism are matched in a ratchet mechanism to adjust the lifting of the intermediate transmission mechanism. Thus, when the maintenance regeneration operation includes gas injection, gas exhaust, liquid injection, and liquid discharge, the intermediate transfer mechanism can be lowered and held at the first position or the second position by rotating the operating lever clockwise, and the intermediate transfer mechanism can be raised to the original position by rotating the operating lever counterclockwise; alternatively, the intermediate transmission mechanism may be held at the first position, the second position, or returned to the original position by the ratchet mechanism depending on the number of times the operation lever is pressed.
Preferably, the trigger mechanism further comprises a first elastic piece sleeved on the intermediate transmission mechanism. The first elastic piece is arranged along the axial direction of the operating rod in a compressed mode and used for enabling the middle transmission mechanism to recover to the original position of the sealed cavity after external force is removed.
Preferably, the valve seat is a cylinder fixedly sleeved inside the cylindrical valve body, and the inlets of the gas channel and the liquid channel are formed on the side wall of the cylinder at intervals along the circumferential direction and at different heights. The valve core is a semi-closed tubular structure movably arranged above the valve seat and comprises a pressure end used for being abutted against the middle transmission mechanism and a communication end used for being sleeved with the valve seat. The first valve hole and the second valve hole are through holes formed on the communication end side wall at intervals in the circumferential direction along the same height. When the pressure end is triggered by the first of the middle transmission mechanism, the valve core can move to a first height to enable the first valve hole to be communicated with the gas channel; when the pressure end is triggered by the second of the middle transmission mechanisms, the valve core can move to the second height to enable the second valve hole to be communicated with the liquid channel.
Preferably, the second connecting portion further includes a second elastic member for restoring the spool; the second elastic piece is sleeved on the valve seat and is arranged between the valve seat and the valve core in a compression mode.
The invention also provides a slurry battery system which comprises the slurry battery, the maintenance regeneration equipment and the connecting device, wherein the shell of the slurry battery is provided with a second connecting part, and the maintenance regeneration equipment is provided with a first connecting part. Preferably, the paste battery is a lithium paste battery. The maintenance regeneration equipment comprises a liquid injection tank, a liquid discharge tank, a gas injection tank and an exhaust tank. The liquid injection tank can be connected with the liquid injection pipe, the gas injection tank can be connected with the gas injection pipe, the liquid discharge tank can be connected with the liquid discharge pipe, and the exhaust tank can be connected with the exhaust pipe.
Preferably, a stepped hole for mounting the second connection portion is formed on the case of the paste battery. An annular boss used for being abutted with the cylindrical shell of the first connecting part is formed around the stepped hole, and rotary clamping structures matched with each other are formed on the outer peripheral surface of the annular boss and the inner peripheral surface of the cylindrical shell; when the first connecting part is butted with the second connecting part, the trigger mechanism is butted with the valve core.
In the coupling device of the present invention, the rotating body can selectively communicate at least one of the plurality of connection pipes with the sealed chamber by coupling the first coupling portion and the second coupling portion. And under the condition that at least one of the connecting pipes is communicated with the closed cavity, the valve core can be triggered to move by pressing the trigger mechanism. The valve core moves to enable the first valve hole to be communicated with the gas channel; alternatively, the second valve bore is communicated with the liquid passage. Therefore, the maintenance regeneration equipment can be communicated with the battery to be maintained sequentially through the connecting pipe, the closed cavity and the gas channel or the liquid channel. The connecting device can realize a plurality of processes at one time through connection, rotation and pressing, does not need to repeatedly butt joint for a plurality of times aiming at different processes, and has simple operation and high efficiency.
Additional advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:
fig. 1 is a schematic view of the connection device of the present invention and a paste battery provided with the connection device;
fig. 2 is a schematic structural diagram of a first connection portion according to a first embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of FIG. 2;
FIG. 4 is an exploded view of the component parts of FIG. 2;
FIG. 5 is another cross-sectional view of FIG. 2;
FIG. 6 is a schematic structural view of a gas injection tube according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of the first connection portion of the present invention showing the included angles between the gas injection pipe, the gas exhaust pipe, the liquid injection pipe, and the liquid discharge pipe;
FIG. 8 is a schematic structural view of a rotating body of the present invention showing a first through hole and a second through hole;
FIG. 9 is a top view of the cylindrical housing and rotator of the present invention aligned;
fig. 10 is a schematic cross-sectional view of a first connection portion of a second embodiment of the present invention;
FIG. 11 is a schematic structural diagram of a second connecting portion according to the present invention;
fig. 12 is an exploded view of the components of the second connecting portion of the present invention;
FIG. 13 is a schematic cross-sectional view of a second connector portion of the present invention;
FIG. 14 is a schematic view of a first connection state of the second connecting portion according to the present invention;
FIG. 15 is a schematic view of a second communication state of the second connecting portion of the present invention;
fig. 16 is a schematic structural view of a battery case of the present invention.
Description of reference numerals:
100-a first connection;
101-cylindrical shell, 1011-gas injection pipe, 1012-gas exhaust pipe, 1013-liquid injection pipe and 1014-liquid discharge pipe;
102-a rotation body, 1021-a first through hole, 1022-a second through hole;
110-a trigger mechanism;
111-operating rod, 112-intermediate transmission mechanism, 113-ratchet assembly, 114-first elastic member;
200-a second connection;
201-cylindrical valve body;
202-valve core, 2020-pressure end, 2020' -communication end, 2021-first valve hole, 2022-second valve hole;
203-valve seat, 2031-gas channel, 2032-liquid channel;
204-a second elastic member;
301-stepped hole, 302-annular boss;
b-a closed cavity, a G-first groove, a G' -second groove, a D-arc surface and an O-port;
s-a first tag, S' -a second tag;
α1first angle, α2Second angle, α3-a third angle.
Detailed Description
The invention will be further explained by embodiments in conjunction with the drawings.
The invention provides a connecting device for maintenance and regeneration of a slurry battery, which comprises a first connecting part 100 for connecting with a maintenance and regeneration device and a second connecting part 200 which can be butted with the first connecting part 100 and is used for connecting with a battery to be maintained. As shown in fig. 1 to 3, the first connection portion 100 includes: cylindrical case 101, gas injection pipe 1011, gas exhaust pipe 1012, liquid injection pipe 1013, liquid discharge pipe 1014, rotary body 102, and trigger mechanism 110. The gas injection pipe 1011, the gas exhaust pipe 1012, the liquid injection pipe 1013, and the liquid discharge pipe 1014 are provided on the side wall of the cylindrical case 101. The rotary body 102 is axially fixed and circumferentially rotatably provided in the cylindrical case 101. The rotating body 102 defines a closed cavity B inside, and the sidewall of the rotating body 102 is provided with an abutting portion for selectively communicating at least one of the gas injection pipe 1011, the gas exhaust pipe 1012, the liquid injection pipe 1013, and the liquid discharge pipe 1014 with the closed cavity B. The trigger mechanism 110 is provided inside the cylindrical case 101 so as to be movable in the axial direction of the cylindrical case 101, and is capable of activating the second connection portion 200 when at least one of the gas injection pipe 1011, the gas exhaust pipe 1012, the liquid injection pipe 1013, and the liquid discharge pipe 1014 is in a state of being communicated with the sealed chamber B.
As shown in fig. 11 to 15, the second connection portion 200 includes a cylindrical valve body 201, a valve body 202, and a valve seat 203. The valve seat 203 is provided inside the cylindrical valve body 201, and a gas passage 2031 for gas injection or gas exhaust and a liquid passage 2032 for liquid injection or liquid discharge are formed on the valve seat 203. The valve body 202 is disposed above the inner valve seat 203 of the cylindrical valve body 201, and the valve body 202 has a first valve hole 2021 for communicating the gas passage 2031 with the sealed chamber B and a second valve hole 2022 for communicating the liquid passage 2032 with the sealed chamber B.
When in use, the first connecting part 100 is butted with the second connecting part 200, the rotating body 102 is rotated to align the butted part on the rotating body 102 with at least one of the gas injection pipe 1011, the gas exhaust pipe 1012, the liquid injection pipe 1013 and the liquid discharge pipe 1014 on the cylindrical shell 101, so as to ensure that the connecting pipe is communicated with the closed cavity B, and then the second connecting part 200 is triggered by pressing the trigger mechanism 110. When the trigger mechanism 110 triggers the second connecting portion 200, the trigger mechanism 110 can trigger the valve core 202 to move, so that the first valve hole 2021 is communicated with the gas channel 2031; alternatively, the second valve bore 2022 is brought into communication with the liquid passage 2032. In this way, the gas injection pipe 1011, the gas exhaust pipe 1012, the liquid injection pipe 1013, or the liquid discharge pipe 1014 can be selectively communicated with the interior of the battery to be maintained by performing the butting, rotating, and pressing operations on the connection device, thereby completing a plurality of maintenance processes for the slurry battery at one time.
In order to prevent air leakage or liquid leakage during the maintenance and regeneration of the slurry battery, the assembly between the plurality of connecting pipes and the sealed cavity B needs to maintain good sealing performance. Specifically, a plurality of connection pipes are integrally formed on the cylindrical housing; alternatively, as shown in fig. 2 to 6, the end portions of the plurality of connection pipes horizontally pass through the side wall of the cylindrical housing 101 and the end surfaces are formed into arc-shaped surfaces D capable of being in close contact with the surface of the rotating body 102. The abutting portion is a through hole formed on the rotating body 102. Thus, when the rotating body 102 rotates, the end surface of the connection pipe slides with respect to the surface of the rotating body 102, and the port O of the connection pipe can be aligned with or misaligned from the through hole by controlling the rotation angle of the rotating body 102, thereby communicating the maintenance regeneration equipment with the sealed chamber B. Further, as shown in fig. 4, a first groove G for mounting the first seal is formed on the circumferential surface of the mounting end of the connection pipe. The first sealing member may seal an assembly gap between the connection pipe and the cylindrical housing 101. The rotating body 102 is a cylinder fitted in the cylindrical case 101. Second grooves G' for mounting second sealing members are formed at upper and lower sides of the through hole on the circumferential surface of the rotating body 102. The second sealing member may seal an assembly gap between the connection pipe, the cylindrical housing 101, and the rotating body 102. In addition, for the purpose of facilitating grasping, the top of the rotating body 102 is formed as a rotation operation portion extending beyond the upper end of the cylindrical case 101.
As shown in fig. 7 and 8, the gas connection pipe is disposed at a first height and the liquid connection pipe is disposed at a second height below the gas connection pipe, considering that the electrolyte has a certain fluidity. In this way, when the first connection portion 100 is mated with the second connection portion 200, the liquid connection pipe is closer to the battery to be maintained, so that the electrolyte can be conveniently injected into or discharged from the battery to be maintained. Specifically, the gas injection pipe 1011 and the exhaust pipe 1012 are circumferentially provided at intervals at a first height of the cylindrical housing 101. The liquid injection pipe 1013 and the liquid discharge pipe 1014 are circumferentially provided at a second height of the cylindrical case 101. The abutting portion is a first through hole 1021 and a second through hole 1022 which correspond to the first height and the second height, respectively, and are circumferentially staggered. When in use, the rotating body 102 is operated to rotate by different angles, so that the first through hole 1021 is aligned with the gas injection pipe 1011 or the gas exhaust pipe 1012, and the second through hole 1022 is in a sealed state; alternatively, the second through-hole 1022 may be aligned with the pour conduit 1013 or the drain conduit 1014, and the first through-hole 1021 may be in a sealed state.
In the above embodiment, liquid injection pipe 1013 is provided directly below gas injection pipe 1011. The exhaust pipe 1012 is spaced clockwise by a first angle α relative to the gas injection pipe 10111The drain pipe 1014 is arranged at a second angle alpha in the counterclockwise direction with respect to the pouring pipe 10132And (4) setting. The circumferentially staggered angle between the first through hole 1021 and the second through hole 1022 is a third included angle alpha3Wherein α is1＝α2＝α3. Preferably, alpha1＝α2＝α3＝90°。
Before use, the first through hole 1021 and the second through hole 1022 are both in a closed position. In use, the rotation of the rotary body 102 is operated to achieve four different communication states between the first through hole 1021 and the second through hole 1022, and the gas injection pipe 1011, the gas exhaust pipe 1012, the liquid injection pipe 1013, and the liquid discharge pipe 1014. Specifically, in the first state, the second through-hole 1022 is aligned with the drain 1014 and the first through-hole 1021 is in a sealed position. The rotating body 102 is operated to rotate clockwise by a second included angle alpha2The second through-hole 1022 may be rotated to a second state of alignment with the inlet conduit 1013. By continuing to operate the rotating body 102 to rotate clockwise by the first included angle alpha3The first through hole 1021 can be rotated to a third state aligned with the gas-injection pipe 1011. By continuing to operate the rotating body 102 to rotate clockwise by the third included angle alpha1The first through hole 1021 may be rotated to a fourth state aligned with the exhaust pipe 1012. Finally, the rotating body 102 continues to rotate clockwise, and the first through hole 1021 and the second through hole 1022 both return to the closed position.
As shown in fig. 9, in order to display the operation state of the connection device, a first mark S is formed on the cylindrical housing 101, and a second mark S' aligned with the first mark S for indicating whether the plurality of connection pipes are in the opened or closed state is formed on the rotating body 102.
As shown in fig. 3, 5, and 10, the trigger mechanism 110 includes an operating lever 111 and an intermediate transmission mechanism 112 abutting on the operating lever 111. The intermediate transmission mechanism 112 can move up and down under the pressing of the operating rod 111 to open the sealed cavity B and trigger the valve core 202 to move up and down. The upper portion of the rotating body 102 is provided with an end cap, and the lower portion of the rotating body 102 is formed with a boss capable of cooperating with the intermediate transfer mechanism 112 to seal or open the hermetic chamber B. The lower surface of the end cap, the inner surface of the rotating body 102, and the upper surface of the boss together define a sealed chamber B. The end cap is formed with a central hole for allowing the operating rod 111 to pass through. The top of the operation lever 111 is formed with a pressing end surface. The intermediate transmission mechanism 112 is provided coaxially with the operating lever 111 and is located below the operating lever 111. The intermediate transmission mechanism 112 is formed with a seal portion that engages with the boss. When the sealing device is used, the middle transmission mechanism 112 can be triggered to move downwards by pressing the operating rod 111, and the sealing part is separated from the boss along with the downward movement of the middle transmission mechanism 112 so as to open the sealed cavity B. At the same time, the bottom end of the intermediate transfer mechanism 112 actuates the valve element 202 to move up and down.
In order to ensure that the operating rod 111 can exert different touch on the intermediate transmission mechanism 112 under different operations, the operating rod 111 and an external structure are in threaded fit to adjust the lifting of the intermediate transmission mechanism 112, or the ratchet mechanism 113 is arranged between the operating rod 111 and the intermediate transmission mechanism 112 to adjust the lifting of the intermediate transmission mechanism 112. Specifically, in one embodiment, as shown in fig. 10, a first thread is formed on an inner surface of the center hole of the end cap, and a second thread capable of engaging with the first thread is formed on an outer surface of the operating rod 111. Rotating the lever 111 clockwise may cause the lever 111 to move downward, and rotating the lever 111 counterclockwise may cause the lever 111 to move upward. In another embodiment, as shown in fig. 3 and 5, the ratchet mechanism 113 is configured to be able to hold the intermediate transmission mechanism 112 in the first position, the second position, or return to the original position depending on the number of times the operating lever 111 is pressed. The operation principle of the ratchet mechanism 113 is similar to that of a ratchet assembly in a push type ballpoint pen.
Further, the trigger mechanism 110 further includes a first elastic member 114 sleeved on the intermediate transmission mechanism 112. The first elastic member 114 is disposed in a compressed manner in the axial direction of the operating rod and serves to restore the intermediate transmission mechanism 112 to the original position of the hermetically sealed chamber B after the external force is removed. Preferably, the first elastic member 114 is a ring-shaped spring sleeved on the intermediate transmission mechanism 112.
As shown in fig. 11 to 15, the second connection portion 200 includes a cylindrical valve body 201, a valve element 202 provided in the cylindrical valve body 201, and a valve seat 203. A gas passage 2031 for gas injection or gas exhaust and a liquid passage 2032 for liquid injection or liquid discharge are formed on the valve seat 203. The valve body 202 has a first valve hole 2021 for communicating the gas passage 2031 with the sealed chamber B and a second valve hole 2022 for communicating the liquid passage 2032 with the sealed chamber B. Specifically, the valve seat 203 is fixedly sleeved inside the cylindrical valve body 201 from the bottom end, the valve element 202 is disposed above the valve seat 203 in a vertically movable manner under the restriction of the cylindrical valve body 201 and the valve seat 203, and one end of the valve element extends to the top of the cylindrical valve body 201. When the first connection portion 100 is abutted against the second connection portion 200, the lower end of the trigger mechanism 110 may abut against the top of the valve element 202.
In a specific embodiment of the present invention, the valve seat 203 is a cylinder fixedly fitted inside the cylindrical valve body 201, and inlets of the gas passage 2031 and the liquid passage 2032 are formed at different heights and circumferential intervals on a side wall of the cylinder. The poppet 202 is a semi-closed tubular structure movably disposed above the valve seat 203, and the poppet 202 includes a pressurized end 2020 for abutting the intermediate transfer mechanism 112 and a communication end 2020' for telescoping with the valve seat 203. The first valve hole 2021 and the second valve hole 2022 are through holes formed at the sidewall of the communicating end 2020' at circumferentially intervals along the same height. Specifically, the first valve hole 2021 and the second valve hole 2022 are two and are disposed opposite to each other. In this case, when the pressure end 2020 is first actuated by the intermediate transfer mechanism 112, the valve spool 202 can move to the first height to communicate the first valve hole 2021 with the gas passage 2031, and the connection device is in the first communication state. When the pressurized end 2020 is second activated by the intermediate transfer mechanism 112, the valve spool 202 is able to move to the second height to place the second valve bore 2022 in communication with the liquid passage 2032, and the coupling is in the second communication state.
Further, as shown in fig. 12 to 15, the second connection portion 200 further includes a second elastic member 204 for restoring the spool 202; the second elastic member 204 is sleeved on the valve seat 203 and is arranged between the valve seat 203 and the valve core 202 in a compression mode. Preferably, the second elastic member 204 is an annular spring fitted around the outer periphery of the valve seat 203 and defined up and down between both the valve seat 203 and the valve element 202.
The invention also provides a slurry battery system, which comprises the slurry battery, the maintenance and regeneration equipment and the connection device, wherein the casing of the slurry battery is provided with a second connection part 200, and the maintenance and regeneration equipment is provided with a first connection part 100. Specifically, as shown in fig. 16, a stepped hole 301 for mounting the second connection portion 200 is formed on the case of the paste battery. An annular boss 302 for abutting against the cylindrical housing 101 is formed around the stepped hole 301. The outer peripheral surface of the annular boss 302 and the inner peripheral surface of the cylindrical housing 101 are formed with rotary snap-fit structures that fit each other. When the cylindrical housing 101 and the annular boss 302 are rotationally abutted, the trigger mechanism 110 abuts against the valve body 202. The slurry battery may be a lithium slurry battery or a slurry battery of any other material system, and the battery may be maintained and regenerated by operations such as gas injection, gas exhaust, liquid injection, and liquid discharge.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (12)

1. The connecting device for the maintenance and regeneration of the slurry battery is characterized by comprising a first connecting part and a second connecting part, wherein the first connecting part is used for being connected with a maintenance and regeneration device, and the second connecting part can be butted with the first connecting part and is used for being connected with the battery to be maintained;
the first connection portion includes:
a cylindrical housing;
a plurality of connection pipes provided on a side wall of the cylindrical case;
a rotating body axially fixed and circumferentially rotatably provided in the cylindrical housing; a closed cavity is defined inside the rotating body; the side wall of the rotating body is provided with a butt joint part for selectively communicating at least one of the connecting pipes with the closed cavity; and
the triggering mechanism is movably arranged in the cylindrical shell along the axial direction of the cylindrical shell and is used for triggering the second connecting part when at least one of the connecting pipes is communicated with the closed cavity;
the second connection portion includes:
a cylindrical valve body;
the valve seat is arranged in the cylindrical valve body, and a gas channel for gas injection or exhaust and a liquid channel for liquid injection or liquid discharge are formed on the valve seat; and
the valve core is arranged above the valve seat in the cylindrical valve body, and a first valve hole for communicating the gas channel with the closed cavity and a second valve hole for communicating the liquid channel with the closed cavity are formed in the valve core;
the cylindrical shell can be connected with the cylindrical valve body, the butt joint part can enable at least one of the connecting pipes to be communicated with the sealed cavity along with the rotation of the rotating body, and the trigger mechanism can trigger the valve core to move so as to enable the first valve hole to be communicated with the gas channel; alternatively, the second valve hole is made to communicate with the liquid passage.
2. The connecting device of claim 1 wherein the plurality of connecting tubes are integrally formed on the cylindrical housing; or the end parts of the plurality of connecting pipes horizontally penetrate through the side wall of the cylindrical shell, and the end surfaces of the connecting pipes are formed into arc-shaped surfaces which can be in close contact with the surface of the rotating body; the abutting portion is a through hole formed on the rotating body.
3. The connecting device according to claim 1, wherein the plurality of connecting pipes include a gas injection pipe, a gas exhaust pipe, a liquid injection pipe, and a liquid discharge pipe, the gas injection pipe and the gas exhaust pipe being circumferentially spaced apart at a first height of the cylindrical housing, the liquid injection pipe and the liquid discharge pipe being circumferentially spaced apart at a second height of the cylindrical housing; the butt joint part is a first through hole and a second through hole which correspond to the first height and the second height respectively and are staggered in the circumferential direction.
4. The connecting device according to claim 3, wherein the liquid injection pipe is disposed directly below the gas injection pipe; the exhaust pipe is spaced at a first included angle alpha relative to the gas injection pipe along the clockwise direction1Setting, the liquid discharge pipe is arranged at a second included angle alpha along the anticlockwise interval relative to the liquid injection pipe2Setting; the circumferentially staggered angle between the first through hole and the second through hole is a third included angle alpha3Wherein α is1＝α2＝α3。
5. The connecting device according to claim 1, wherein a first mark is formed on the cylindrical housing, and a second mark that can be aligned with the first mark to indicate whether the plurality of connecting pipes are in an open or closed state is formed on the rotating body.
6. The connection device of claim 1, wherein the trigger mechanism includes an operating lever and an intermediate transfer mechanism in abutment with the operating lever; the middle transmission mechanism can do lifting motion under the pressing of the operating rod so as to open the sealed cavity and trigger the valve core to move.
7. The connecting device according to claim 6, wherein the operating rod is screwed with the cylindrical housing to adjust the elevation of the intermediate transmission mechanism; or the lifting of the intermediate transmission mechanism is adjusted by a ratchet mechanism between the operating rod and the intermediate transmission mechanism.
8. The connection device of claim 7, wherein the trigger mechanism further comprises a first elastic member sleeved on the intermediate transfer mechanism; the first elastic piece is arranged along the axial direction of the operating rod in a compressed mode and used for enabling the middle transmission mechanism to recover to the original position for sealing the closed cavity after external force is removed.
9. The connecting device as claimed in claim 6, wherein the valve seat is a cylinder fixedly fitted inside the cylindrical valve body, and the inlets of the gas passage and the liquid passage are formed at different heights and circumferentially spaced intervals on a side wall of the cylinder;
the valve core is a semi-closed tubular structure movably arranged above the valve seat and comprises a pressure end used for being abutted against the middle transmission mechanism and a communication end used for being sleeved with the valve seat; the first valve hole and the second valve hole are through holes formed on the side wall of the communication end at intervals along the circumferential direction at the same height;
when the pressure end is triggered by the first trigger of the middle transmission mechanism, the valve core can move to a first height to enable the first valve hole to be communicated with the gas channel; when the pressure end is triggered by the second trigger of the middle transmission mechanism, the valve core can move to a second height to enable the second valve hole to be communicated with the liquid channel.
10. The connecting device according to claim 1, wherein the second connecting portion further includes a second elastic member for returning the spool; the second elastic piece is sleeved on the valve seat and is arranged between the valve seat and the valve core in a compression mode.
11. A slurry battery system, characterized in that the slurry battery system comprises a slurry battery, a maintenance and regeneration device and the connection device according to any one of claims 1 to 10, wherein the second connection part is arranged on a casing of the slurry battery, and the first connection part is arranged on the maintenance and regeneration device.
12. The paste battery system according to claim 11, wherein a stepped hole for mounting the second connection portion is formed on a case of the paste battery; an annular boss used for being abutted with the cylindrical shell is formed around the stepped hole, and rotary clamping structures matched with each other are formed on the outer peripheral surface of the annular boss and the inner peripheral surface of the cylindrical shell; when the cylindrical shell is in rotary butt joint with the annular boss, the trigger mechanism is abutted to the valve core.
CN201810479349.6A 2018-05-18 2018-05-18 Connecting device for maintaining and regenerating slurry battery and slurry battery system Active CN110504497B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106159302A (en) * 2015-04-08 2016-11-23 北京好风光储能技术有限公司 A kind of lithium slurry cell reaction device
WO2017152836A1 (en) * 2016-03-08 2017-09-14 北京好风光储能技术有限公司 Cell for lithium paste battery, and lithium paste battery module
CN107305942A (en) * 2016-04-22 2017-10-31 北京好风光储能技术有限公司 A kind of takeup type negative plate and battery core and lithium slurry battery provided with the negative plate
CN107387811A (en) * 2017-08-16 2017-11-24 深圳市誉辰自动化设备有限公司 Fluid injection control valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106159302A (en) * 2015-04-08 2016-11-23 北京好风光储能技术有限公司 A kind of lithium slurry cell reaction device
WO2017152836A1 (en) * 2016-03-08 2017-09-14 北京好风光储能技术有限公司 Cell for lithium paste battery, and lithium paste battery module
CN107305942A (en) * 2016-04-22 2017-10-31 北京好风光储能技术有限公司 A kind of takeup type negative plate and battery core and lithium slurry battery provided with the negative plate
CN107387811A (en) * 2017-08-16 2017-11-24 深圳市誉辰自动化设备有限公司 Fluid injection control valve

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Patentee before: Beijing Hawaga Power Storage Technology Co.,Ltd.