CN114725633A - Power battery package coolant liquid eduction gear - Google Patents

Power battery package coolant liquid eduction gear Download PDF

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Publication number
CN114725633A
CN114725633A CN202210479612.8A CN202210479612A CN114725633A CN 114725633 A CN114725633 A CN 114725633A CN 202210479612 A CN202210479612 A CN 202210479612A CN 114725633 A CN114725633 A CN 114725633A
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CN
China
Prior art keywords
power battery
gas injection
battery pack
liquid
pipe
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202210479612.8A
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Chinese (zh)
Inventor
张宇平
李江华
金二华
张超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Power Battery Regeneration Technology Co ltd
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Wuhan Power Battery Regeneration Technology Co ltd
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Publication date
Application filed by Wuhan Power Battery Regeneration Technology Co ltd filed Critical Wuhan Power Battery Regeneration Technology Co ltd
Priority to CN202210479612.8A priority Critical patent/CN114725633A/en
Publication of CN114725633A publication Critical patent/CN114725633A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/60Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
    • H01M50/691Arrangements or processes for draining liquids from casings; Cleaning battery or cell casings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/54Reclaiming serviceable parts of waste accumulators
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567Liquids
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/84Recycling of batteries or fuel cells

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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)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The invention discloses a power battery pack cooling liquid discharge device which comprises a gas injection mechanism, a detection mechanism and a cooling liquid collection mechanism, wherein the gas injection mechanism is used for injecting cooling liquid into a power battery pack; the gas injection mechanism comprises a gas injection pipe; the detection mechanism comprises a buffer tank and a water immersion sensor; the cooling liquid collecting mechanism comprises a collecting pipe and a collecting box. The invention has the beneficial effects that: when using, with the one end and the air supply intercommunication of gas injection pipe, the high-pressure gas of air supply output gets into in the coolant liquid inlet of power battery package through the gas injection pipe, thereby hold the intracavity with the coolant liquid displacement in the power battery package to the last of baffle-box, hold the chamber under the water hole entering again, at last in the collecting box is got into via the collecting pipe, when the coolant liquid was through the water hole, water sensor detected the fluid process, when last holding intracavity coolant liquid evacuation and finishing, water sensor can not detect the fluid process, at this moment, close the air supply, thereby can be convenient for judge the time point of power battery package coolant liquid evacuation through this device, evacuation efficiency and security have been improved.

Description

Power battery package coolant liquid eduction gear
Technical Field
The invention relates to the technical field of battery recovery, in particular to a cooling liquid discharging device for a power battery pack.
Background
For the lithium ion battery pack which can not meet the current application requirements, the residual value can be effectively exerted by recycling. For the lithium ion battery with obviously reduced cycle life, the renewable resources such as metal oxide, organic electrolyte, plastic shell and the like in the lithium ion battery can be extracted. The cost of the lithium ion battery can be effectively recovered through resource recovery, and the method has high economical efficiency. Through raw material recovery, the recovery rate of metal elements such as nickel, cobalt, manganese and the like can reach more than 95%, the recovery rate of lithium elements is also more than 70%, and the economic benefit is remarkable. When the capacity can not meet the current use condition, but the lithium ion battery pack with longer cycle life can be used in the energy storage field through a mode of gradient utilization. The echelon utilization is an efficient and energy-saving recovery mode suitable for waste power lithium ion battery packs, and the economic goal is achieved by prolonging the service life of the power lithium ion battery packs. Generally speaking, when the capacity of a power lithium ion battery pack is reduced to about 80%, the power lithium ion battery pack is eliminated, but the power lithium ion battery pack can still be used for energy storage equipment and is put into places such as commercial residential energy storage stations, electric vehicle charging energy storage stations and telecommunication base stations.
The coolant in the lithium ion battery pack belongs to dangerous waste, and the coolant is discharged as a necessary process for green and nondestructive disassembly (for example, the Chinese utility model patent with the application number of CN 201821959359.1). The existing method for discharging the cooling liquid of the power battery pack is a high-pressure air source discharging and driving mode.
However, when the cooling liquid in the power battery pack is discharged, the time point of the evacuation of the cooling liquid in the power battery pack is not easy to judge, so that the cooling liquid is not completely evacuated or the gas drive is continued after the cooling liquid is evacuated, thereby causing a safety problem.
Disclosure of Invention
In view of this, it is necessary to provide a device for discharging a cooling liquid from a power battery pack, so as to solve the technical problem that when the cooling liquid from the power battery pack is discharged, it is not easy to determine the time point of emptying the cooling liquid from the power battery pack, so that the cooling liquid is not completely emptied or the cooling liquid is continuously driven by air after being emptied, thereby causing potential safety hazards.
In order to achieve the purpose, the invention provides a cooling liquid discharging device for a power battery pack, which comprises a gas injection mechanism, a detection mechanism and a cooling liquid collecting mechanism, wherein the gas injection mechanism is used for injecting cooling liquid into a cooling liquid storage tank;
the gas injection mechanism comprises a gas injection pipe, one end of the gas injection pipe is used for being communicated with a gas source, and the other end of the gas injection pipe is communicated with a cooling liquid inlet of the power battery pack;
the detection mechanism comprises a buffer tank and a water sensor, a closed accommodating cavity is formed in the buffer tank, a partition plate is formed in the accommodating cavity, the accommodating cavity is divided into an upper accommodating cavity and a lower accommodating cavity by the partition plate, the upper accommodating cavity is communicated with a cooling liquid outlet of the power battery pack, a water passing hole is formed in the partition plate, and the detection end of the water sensor is arranged in the water passing hole;
the cooling liquid collecting mechanism comprises a collecting pipe and a collecting box, one end of the collecting pipe is communicated with the lower containing cavity, and the other end of the collecting pipe is communicated with the collecting box.
In some embodiments, the gas injection mechanism further comprises a first on-off valve disposed on the gas injection tube.
In some embodiments, the gas injection mechanism further comprises a first pressure regulating valve disposed on the gas injection tube.
In some embodiments, the gas injection mechanism further comprises a dryer disposed on the gas injection tube.
In some embodiments, the coolant collection mechanism further comprises a second on-off valve disposed on the collection pipe.
In some embodiments, the coolant collection mechanism further comprises a second pressure regulating valve disposed on the collection tube.
In some embodiments, the buffer box is provided with a liquid inlet communicated with the upper accommodating cavity and a liquid outlet communicated with the lower accommodating cavity, and the liquid outlet is communicated with one end of the collecting pipe; the detection mechanism further comprises a liquid discharge pipe, one end of the liquid discharge pipe is communicated with the cooling liquid outlet, and the other end of the liquid discharge pipe is communicated with the liquid inlet.
In some embodiments, the power battery pack coolant discharge device further includes a liquid discharge pipe and a liquid discharge valve, one end of the liquid discharge pipe is communicated with the lower accommodating cavity, and the liquid discharge valve is disposed on the liquid discharge pipe.
In some embodiments, the power battery pack cooling liquid discharge device further comprises a moving trolley, and the moving trolley is used for fixing the power battery pack.
In some embodiments, the water sensor comprises an alarm piece and two pole plates, two detection ends of the alarm piece are respectively electrically connected with the two pole plates, and the two pole plates are arranged in the water through hole at intervals.
Compared with the prior art, the technical scheme provided by the invention has the beneficial effects that: when using, with the one end and the air supply intercommunication of gas injection pipe, the high-pressure gas of air supply output gets into in the coolant liquid inlet of power battery package through the gas injection pipe, thereby hold the intracavity with the coolant liquid displacement in the power battery package to the last of baffle-box, hold the chamber under the water hole entering again, at last in the collecting box is got into via the collecting pipe, when the coolant liquid was through the water hole, water sensor detected the fluid process, when last holding intracavity coolant liquid evacuation and finishing, water sensor can not detect the fluid process, at this moment, close the air supply, thereby can be convenient for judge the time point of power battery package coolant liquid evacuation through this device, evacuation efficiency and security have been improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a power battery pack coolant discharge device provided in the present invention;
FIG. 2 is a schematic structural view of the gas injection mechanism, the detection mechanism and the coolant collection mechanism in FIG. 1;
FIG. 3 is a schematic perspective view of the buffer tank of FIG. 2;
FIG. 4 is a schematic perspective view of the buffer box of FIG. 3 with a portion of the housing omitted;
FIG. 5 is a schematic perspective view of the water sensor of FIG. 4;
in the figure: 1-gas injection mechanism, 11-gas injection pipe, 12-first switch valve, 13-first pressure regulating valve, 14-dryer, 2-detection mechanism, 21-buffer tank, 211-baffle, 2111-water through hole, 212-upper containing cavity, 213-lower containing cavity, 214-liquid inlet, 215-liquid outlet, 22-water sensor, 221-alarm, 222-pole plate, 23-liquid discharge pipe, 3-cooling liquid collection mechanism, 31-collection pipe, 32-collection box, 33-second switch valve, 34-second pressure regulating valve, 4-power battery pack, 41-cooling liquid inlet, 42-cooling liquid outlet, 51-liquid discharge pipe, 52-liquid discharge valve and 6-mobile trolley.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
Referring to fig. 1 to 4, the present invention provides a coolant discharge device for a power battery pack, including a gas injection mechanism 1, a detection mechanism 2 and a coolant collection mechanism 3, wherein the detection mechanism 2 is used for detecting whether the coolant in the power battery pack 4 is emptied.
The gas injection mechanism 1 comprises a gas injection pipe 11, one end of the gas injection pipe 11 is used for being communicated with a gas source, and the other end of the gas injection pipe 11 is communicated with a cooling liquid inlet 41 of the power battery pack 4.
Detection mechanism 2 includes baffle-box 21 and water sensor 22, be formed with an inclosed chamber that holds in the baffle-box 21, it is formed with a baffle 211 to hold the intracavity, baffle 211 will it separates to become to hold the chamber and hold chamber 212 and hold chamber 213 down to hold the chamber, on hold chamber 212 with the coolant liquid export 42 intercommunication of power battery package 4, water hole 2111 has been seted up on the baffle 211, water sensor 22's sense terminal set up in the water hole 2111.
The cooling liquid collecting mechanism 3 includes a collecting pipe 31 and a collecting box 32, one end of the collecting pipe 31 is communicated with the lower accommodating cavity 213, and the other end of the collecting pipe 31 is communicated with the collecting box 32.
When using, with the one end and the air supply intercommunication of gas injection pipe 11, the high-pressure gas of air supply output gets into in the coolant liquid import 41 of power battery package 4 through gas injection pipe 11, thereby in holding chamber 212 with the last of coolant liquid displacement in the power battery package 4 to baffle-box 21, hold chamber 213 under getting into via crossing water hole 2111 again, finally get into through collecting pipe 31 and collect in the box 32, when coolant liquid through crossing water hole 2111, water sensor 22 detects the fluid process, when holding in the intracavity 212 when the evacuation of coolant liquid finishes, water sensor 22 can not detect the fluid process, at this moment, close the air supply, thereby can be convenient for judge the time point of power battery package 4 coolant liquid evacuation through this device, evacuation efficiency and security have been improved.
In order to facilitate the turning on or off of the gas supply input, referring to fig. 1-4, in a preferred embodiment, the gas injection mechanism 1 further includes a first switch valve 12, and the first switch valve 12 is disposed on the gas injection pipe 11.
In order to facilitate the control of the pressure of the exhaust gas, referring to fig. 1-4, in a preferred embodiment, the gas injection mechanism 1 further includes a first pressure regulating valve 13, and the first pressure regulating valve 13 is disposed on the gas injection pipe 11.
In order to keep the exhaust gas dry, referring to fig. 1-4, in a preferred embodiment, the gas injection mechanism 1 further includes a dryer 14, and the dryer 14 is disposed on the gas injection pipe 11, so as to prevent water vapor in the gas source from affecting the power battery pack 4.
In order to facilitate the control of the opening or closing of the collecting pipe 31, referring to fig. 1 to 4, in a preferred embodiment, the coolant collecting mechanism 3 further includes a second on-off valve 33, and the second on-off valve 33 is disposed on the collecting pipe 31.
In order to facilitate the control of the pressure of the coolant inside the collecting pipe 31, referring to fig. 1-4, in a preferred embodiment, the coolant collecting mechanism 3 further includes a second pressure regulating valve 34, and the second pressure regulating valve 34 is disposed on the collecting pipe 31.
In order to facilitate the pipeline connection of the buffer tank 21, referring to fig. 1-4, in a preferred embodiment, the buffer tank 21 is provided with a liquid inlet 214 communicated with the upper accommodating chamber 212 and a liquid outlet 215 communicated with the lower accommodating chamber 213, and the liquid outlet 215 is communicated with one end of the collecting pipe 31; the detection mechanism 2 further comprises a liquid discharge pipe 23, one end of the liquid discharge pipe 23 is communicated with the cooling liquid outlet 42, and the other end of the liquid discharge pipe 23 is communicated with the liquid inlet 214.
In order to facilitate discharging the accumulated liquid in the lower accommodating cavity 213, referring to fig. 1 to 4, in a preferred embodiment, the power battery pack coolant discharging apparatus further includes an accumulated liquid discharging pipe 51 and an accumulated liquid discharging valve 52, one end of the accumulated liquid discharging pipe 51 is communicated with the lower accommodating cavity 213, and the accumulated liquid discharging valve 52 is disposed on the accumulated liquid discharging pipe 51.
In order to facilitate the movement of the power battery pack 4, referring to fig. 1, in a preferred embodiment, the power battery pack coolant discharge device further includes a moving trolley 6, and the moving trolley 6 is used for fixing the power battery pack 4.
In order to specifically realize the function of the water sensor 22, please refer to fig. 5, in a preferred embodiment, the water sensor 22 includes an alarm part 221 and two pole plates 222, two detection ends of the alarm part 221 are electrically connected to the two pole plates 222, the two pole plates 222 are disposed in the water through hole 2111 at intervals, and when the water sensor is used, when the coolant passes through the water through hole 2111, the coolant electrically connects the two pole plates 222, so that the alarm part 221 performs a corresponding action.
For better understanding of the present invention, the following describes the operation of the coolant discharge device for power battery pack according to the present invention with reference to fig. 1 to 5: when the power battery pack is used, the power battery pack 4 is lifted to the movable trolley 6, the movable trolley 6 and the power battery pack 4 are moved to the vicinity of a cooling liquid discharge device and are connected with corresponding pipelines, one end of the gas injection pipe 11 is communicated with a gas source, high-pressure gas output by the gas source enters the cooling liquid inlet 41 of the power battery pack 4 through the gas injection pipe 11, so that cooling liquid in the power battery pack 4 is driven to the upper accommodating cavity 212 of the buffer box 21 and then enters the lower accommodating cavity 213 through the water through hole 2111, and finally enters the collecting box 32 through the collecting pipe 31, when the cooling liquid passes through the water through hole 2111, the water sensor 22 detects that the liquid passes through, when the cooling liquid in the upper accommodating cavity 212 is emptied, the water sensor 22 cannot detect that the liquid passes through, at the moment, the gas source is closed, the pipeline connection is disconnected, and the power battery pack 4 is moved to a recycling discharge station through the movable trolley 6, the device can conveniently judge the time point of emptying the cooling liquid in the power battery pack 4, and improves the emptying efficiency and safety.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention will be covered within the scope of the present invention.

Claims (10)

1. A power battery pack cooling liquid discharge device is characterized by comprising a gas injection mechanism, a detection mechanism and a cooling liquid collection mechanism;
the gas injection mechanism comprises a gas injection pipe, one end of the gas injection pipe is used for being communicated with a gas source, and the other end of the gas injection pipe is communicated with a cooling liquid inlet of the power battery pack;
the detection mechanism comprises a buffer tank and a water immersion sensor, a closed accommodating cavity is formed in the buffer tank, a partition plate is formed in the accommodating cavity, the accommodating cavity is divided into an upper accommodating cavity and a lower accommodating cavity by the partition plate, the upper accommodating cavity is communicated with a cooling liquid outlet of the power battery pack, a water through hole is formed in the partition plate, and the detection end of the water immersion sensor is arranged in the water through hole;
the cooling liquid collecting mechanism comprises a collecting pipe and a collecting box, one end of the collecting pipe is communicated with the lower containing cavity, and the other end of the collecting pipe is communicated with the collecting box.
2. The power battery pack coolant discharge apparatus of claim 1, wherein the gas injection mechanism further includes a first on-off valve disposed on the gas injection tube.
3. The power battery pack coolant discharge apparatus of claim 1, wherein the gas injection mechanism further includes a first pressure regulating valve disposed on the gas injection tube.
4. The power battery pack coolant discharge apparatus of claim 1, wherein the gas injection mechanism further includes a dryer disposed on the gas injection pipe.
5. The power battery pack coolant discharge device of claim 1, wherein the coolant collection mechanism further includes a second on-off valve disposed on the collection tube.
6. The power battery pack coolant discharge device of claim 1, wherein the coolant collection mechanism further includes a second pressure regulating valve disposed on the collection tube.
7. The power battery pack coolant discharge device of claim 1, wherein the buffer tank is provided with a liquid inlet communicated with the upper accommodating chamber and a liquid outlet communicated with the lower accommodating chamber, and the liquid outlet is communicated with one end of the collecting pipe;
the detection mechanism further comprises a liquid discharge pipe, one end of the liquid discharge pipe is communicated with the cooling liquid outlet, and the other end of the liquid discharge pipe is communicated with the liquid inlet.
8. The coolant drainage device for power battery packs as claimed in claim 1, further comprising a liquid drainage tube and a liquid drainage valve, wherein one end of the liquid drainage tube is connected to the lower receiving cavity, and the liquid drainage valve is disposed on the liquid drainage tube.
9. The power battery pack coolant discharge apparatus of claim 1, further comprising a mobile cart, wherein the mobile cart is used for fixing the power battery pack.
10. The power battery pack coolant discharge device of claim 1, wherein the water sensor comprises an alarm member and two pole plates, two detection ends of the alarm member are electrically connected with the two pole plates respectively, and the two pole plates are arranged in the water through hole at intervals.
CN202210479612.8A 2022-05-05 2022-05-05 Power battery package coolant liquid eduction gear Pending CN114725633A (en)

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CN202210479612.8A CN114725633A (en) 2022-05-05 2022-05-05 Power battery package coolant liquid eduction gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210479612.8A CN114725633A (en) 2022-05-05 2022-05-05 Power battery package coolant liquid eduction gear

Publications (1)

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CN114725633A true CN114725633A (en) 2022-07-08

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209496950U (en) * 2018-11-26 2019-10-15 格林美(武汉)城市矿产循环产业园开发有限公司 Battery pack coolant liquid evacuation system
CN111103149A (en) * 2019-12-23 2020-05-05 智车优行科技(上海)有限公司 Electric automobile power assembly test bench and cooling system thereof
CN213026420U (en) * 2020-07-08 2021-04-20 湖南邦普汽车循环有限公司 Be applied to coolant liquid pump drainage device of battery package
CN213340524U (en) * 2020-10-26 2021-06-01 东风汽车集团有限公司 Cooling liquid inlet and outlet system for power battery of electric automobile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209496950U (en) * 2018-11-26 2019-10-15 格林美(武汉)城市矿产循环产业园开发有限公司 Battery pack coolant liquid evacuation system
CN111103149A (en) * 2019-12-23 2020-05-05 智车优行科技(上海)有限公司 Electric automobile power assembly test bench and cooling system thereof
CN213026420U (en) * 2020-07-08 2021-04-20 湖南邦普汽车循环有限公司 Be applied to coolant liquid pump drainage device of battery package
CN213340524U (en) * 2020-10-26 2021-06-01 东风汽车集团有限公司 Cooling liquid inlet and outlet system for power battery of electric automobile

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
全国勘察设计注册工程师公用设备专业管理委员会秘书处: "全国勘察设计注册公用设备工程师动力专业执业资格考试教材", vol. 4, 31 May 2019, 机械工业出版社, pages: 495 - 496 *

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