CN110243551A - Battery pack, method for detecting leakage and device - Google Patents
Battery pack, method for detecting leakage and device Download PDFInfo
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- CN110243551A CN110243551A CN201910708785.0A CN201910708785A CN110243551A CN 110243551 A CN110243551 A CN 110243551A CN 201910708785 A CN201910708785 A CN 201910708785A CN 110243551 A CN110243551 A CN 110243551A
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- battery pack
- water sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
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Abstract
Battery pack, method for detecting leakage and device provided by the present application are applied to field of batteries.Multiple batteries in battery pack are formed by gap, and cable type water sensor is arranged.When the leakage of generation liquid is detected by the cable type water sensor in the battery pack, the resistance value of the cable type water sensor can be caused to change.The change in resistance situation that the cable type water sensor is detected by the processing unit being electrically connected with the cable type water sensor, determines in battery pack whether liquid leakage occurs.In this way, being used equally for the characteristic of detection leakage situation by the cable type water sensor each position, which is arranged in the corresponding position of the battery pack, the sensitivity of leakage detection is improved, has ensured the safety of battery pack.
Description
Technical field
This application involves field of batteries, in particular to a kind of battery pack, method for detecting leakage and device.
Background technique
Battery pack is the important composition component of New-energy electric vehicle.In order to solve the heat dissipation problem of battery pack usually in electricity
Cooling system is added in the packet of pond, cooling system is formed by connecting by water pipe and flat tube, through between the mould group of battery pack.Water pipe
Usually by dozens of connector between flat tube, with the increase of battery pack service life, exist between water pipe and the connector of flat tube
The security risk of leakage.Once leakage will cause battery pack internal short-circuit, so that explosion on fire occurs for battery pack, user is threatened
Bring personal safety.
At present in industry most of battery pack not specifically for the detection device of cooling system leakage.Percentage of batteries packet
It is that leakage is detected by photoelectric sensor or water leakage detection sensor, the drawbacks of this detection method is only to work as leak
After reaching a certain amount of, can just be detected, and test point is excessively single, when leakage it is local farther out from sensor mounting location
When just can not detect leakage.
Summary of the invention
In order to overcome at least one deficiency in the prior art, the first purpose of the application is to provide a kind of battery pack,
The battery pack includes multiple batteries and at least one cable type water sensor；
The cable type water sensor is set to the multiple battery, and connect with processing unit, the processing unit
For detecting the change in resistance of the cable type water sensor, and it is true according to the change in resistance of the cable type water sensor
With the presence or absence of the liquid of leakage in the fixed battery pack.
Optionally, the cable type water sensor is set in the gap between the multiple battery.
Optionally, at least one liquid cooling pipe, the cable type water logging are provided between the gap between the multiple battery
Sensor is routed along the trend of the liquid cooling pipe, and is arranged in the lower section of the liquid cooling pipe, to detect the liquid cooling pipe
In liquid whether leak.
Optionally, the surface of the cable type water sensor is provided with the water wetted material of easily absorption liquid.
Optionally, the battery pack further includes alarm unit, and the alarm unit is connect with the processing unit, is used for
When the processing unit detects liquid leakage, warning message is issued in processing unit control.
The another object of the embodiment of the present application is to provide a kind of method for detecting leakage, the processing list applied to battery pack
Member, which comprises
Detect the change in resistance of the cable type water sensor；
When detecting that the change in resistance of the cable type water sensor is more than preset range, the confession of the battery pack is cut off
Electrical circuit, so that the battery pack stops working.
Optionally, processing unit record have the different change in resistance sections of the cable type water sensor with it is described
The corresponding relationship of liquid leakage position in battery pack, the method also includes:
According to the constant interval of the cable type water sensor resistance value, determines and liquid leakage occurs in the battery pack
Position.
Optionally, the processing unit record has the position in the battery pack of each liquid cooling pipe, the method
Further include:
The position of the generation liquid leakage is compared with the position in the battery pack of each liquid cooling pipe,
It determines the target liquid cooling pipe that liquid leakage occurs, and closes the target liquid cooling pipe.
Optionally, the multiple battery modules of the multiple battery composition, each liquid cooling pipe are responsible for dissipating for different battery modules
Heat, the battery modules that the processing unit record has each liquid cooling pipe responsible, the method also includes:
The current supply circuit for the battery modules that the target liquid cooling pipe is responsible for is cut off, so that the target liquid cooling pipe is responsible for
Battery modules stop working.
The another object of the embodiment of the present application is to provide a kind of apparatus for testing weeping, the processing list applied to battery pack
Member, the apparatus for testing weeping include obtaining module and judgment module；
The change in resistance for obtaining module and being used to detect the cable type water sensor；
When the judgment module is used to detect that the change in resistance of the cable type water sensor to be more than preset range, cut
The current supply circuit for the battery pack of breaking, so that the battery pack stops working.
In terms of existing technologies, the application has the advantages that
Battery pack, method for detecting leakage and device provided by the embodiments of the present application are applied to field of batteries.In battery pack
Multiple batteries be formed by gap, be arranged cable type water sensor.It reveals when liquid occurs in the battery pack by the line
When cable formula water sensor detects, the resistance value of the cable type water sensor can be caused to change.By with the cable type
The processing unit that water sensor is electrically connected detects the change in resistance situation of the cable type water sensor, determines in battery pack
Whether liquid leakage is occurred.In this way, the characteristic of detection leakage situation is used equally for by the cable type water sensor each position,
The cable type water sensor is arranged in the corresponding position of the battery pack, the sensitivity of leakage detection is improved, has ensured electricity
The safety of Chi Bao.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is one of the structural schematic diagram of battery pack provided by the embodiments of the present application；
Fig. 2 is the second structural representation of battery pack provided by the embodiments of the present application；
Fig. 3 is the step flow chart of method for detecting leakage provided by the embodiments of the present application；
Fig. 4 is the structural schematic diagram of apparatus for testing weeping provided by the embodiments of the present application.
Icon: 400- battery pack；500- battery；600- cable type water sensor；The first battery modules of 4001-；4002-
Second battery modules；4003- third battery modules；The 4th battery modules of 4004-；The first liquid cooling pipe of 7001-；The second liquid of 7002-
Cold pipe；110- apparatus for testing weeping；1101- obtains module；1102- judgment module.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments herein provided in the accompanying drawings is not intended to limit below claimed
Scope of the present application, but be merely representative of the selected embodiment of the application.Based on the embodiment in the application, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model of the application protection
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present application, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in this application.
Fig. 1 is please referred to, is the structural schematic diagram of battery pack 400 provided by the embodiments of the present application, which includes more
A battery 500 and at least one cable type water sensor 600.The cable type water sensor 600 is set to described more
A battery 500, and connect with processing unit, the processing unit is used to detect the resistance value of the cable type water sensor 600
Variation, and determined in the battery pack 400 according to the change in resistance of the cable type water sensor 600 with the presence or absence of leakage
Liquid.
Wherein, which is made of flexible bendable material, can be done according to specific use environment
Corresponding bending.Each position of the cable type water sensor 600 is used equally for detection leakage, and principle is, when there is liquid
When dripping to the cable type water sensor 600, the resistance that will lead to the cable type water sensor 600 changes.And the line
The different position detections of cable formula water sensor 600 are to when leakage, the resistance variations situation of the cable type water sensor 600
Also different.The cable type water sensor 600 may be, but not limited to, two core leakage inductive lines.
In a kind of possible embodiment, which is arranged in the multiple electricity with serpentine
The lower section in pond 500.When there is battery 500 that electrolyte leakage occurs in the multiple battery 500, electrolyte can drip under the effect of gravity
It arrives on cable type water sensor 600 below, is let out with reaching in the detection battery pack 400 with the presence or absence of liquid
The case where leakage.
In alternatively possible embodiment, which is arranged in the multiple battery 500
In the gap of formation, while to improve the space utilization in the battery pack 400, detects and whether occur in the battery pack 400
Liquid leakage.
Referring to figure 2., in alternatively possible embodiment, in order to carry out drop heat treatment to battery pack 400, described
At least one liquid cooling pipe is provided in the gap of multiple batteries 500.The liquid cooling pipe is with the increase for using the time, it is possible to exist
The hidden danger of rupture, and then the coolant liquid in liquid cooling pipe is caused to leak into battery pack 400, there are security risks.
In order to be timely detected in liquid cooling tracheal rupture.By the cable type water sensor 600 along the liquid cooling pipe
Trend is routed, and is arranged in the lower section of liquid cooling pipe.In this way, being leaked out when liquid leakage occurs for liquid cooling tracheal rupture
Coolant liquid under the effect of gravity, has very big probability to drop on the cable type water sensor 600.Meanwhile by the cable
Formula water sensor 600 is routed along the trend of the liquid cooling pipe, can greatly improve the sensitivity of leakage detection.
Optionally, in order to further improve the sensitivity of leakage detection, on the surface of the cable type water sensor 600
It is provided with hydrophilic material.The hydrophilic material is to adsorb the liquid dropped on the cable type water sensor 600.Such as
This, prevents the liquid dropped on the cable type water sensor 600 that cannot be absorbed completely, drops onto ground, influence leakage
The sensitivity of detection.
Only should it is worth noting that the cable type water sensor 600 is routed along the trend of the liquid cooling pipe
One of the wire laying mode of cable type water sensor 600.The cable type water sensor 600 along liquid cooling pipe in addition to moving towards to carry out
Other than wiring, can also being routed elsewhere in not liquid cooling pipe, for detect in addition to liquid cooling pipe liquid leakage
Other liquid leakages, as the electrolyte of battery 500 leaks.
Optionally, which further includes alarm unit, and the alarm unit and processing unit are electrically connected, and is used for
When the processing unit detects liquid leakage, warning message is issued in processing unit control.
The embodiment of the present application also provides a kind of method for detecting leakage, the processing unit applied to the battery pack 400.Wherein,
The processing unit may be a kind of IC chip, the processing capacity with signal.Above-mentioned processing unit can be logical
With processor, including central processing unit (Central Processing Unit, abbreviation CPU), network processing unit (Network
Processor, abbreviation NP) etc.；It can also be digital signal processor (DSP), specific integrated circuit (ASIC), field-programmable
Gate array (FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware components.It can be with
Realize or execute disclosed each method, step and the logic diagram in the embodiment of the present application.General processor can be micro- place
Reason device or the processor are also possible to any conventional processor etc..
Referring to figure 3., Fig. 3 is the step flow chart of the method for detecting leakage.Below with regard to each of the method for detecting leakage
Step is described in detail.
Step S100, the processing unit detect the change in resistance of the cable type water sensor 600.
Step S200 cuts off institute when detecting that the change in resistance of the cable type water sensor 600 is more than preset range
The current supply circuit of battery pack 400 is stated, so that the battery pack 400 stops working.
Optionally, when there is liquid to drop on the cable type water sensor 600, the cable type water sensor will be caused
The variation of 600 resistance values, the processing unit are become by detecting voltage caused by the variation of 600 resistance value of cable type water sensor
Change, liquid leakage whether occurs in the battery pack 400 to detect.
For example, the cable type water sensor 600 is connected with a divider resistance in a kind of possible example, at this
Reason unit is electrically connected between the cable type water sensor 600 and divider resistance by analog-digital commutator, with detection
The voltage of the cable type water sensor 600 got.
When the processing unit detects that the voltage of cable type water sensor 600 got is more than preset threshold, cutting
The current supply circuit of the battery pack 400, so that the battery pack 400 stops working.
Optionally, when should detect leakage due to 600 different location of cable type water sensor, which is passed
The resistance variations situation of sensor 600 is also different.In this way, processing unit record has the cable type water sensor 600
Different change in resistance sections and the battery pack 400 in liquid leakage position corresponding relationship.
Due to the different change in resistance sections of the cable type water sensor 600, so that the cable type water sensor 600
The voltage range got is different.The electricity that the processing unit is got according to the cable type water sensor 600 detected
Pressure value determines the position that liquid leakage occurs in the battery pack 400.In this way, providing reference number for the maintenance of subsequent battery pack 400
According to.
It optionally, include more liquid cooling pipes in the battery pack 400, processing unit record has each liquid cooling pipe in the electricity
Position in pond packet 400.The processing unit determines the target liquid cooling pipe that liquid leakage occurs according to the position that liquid leakage occurs,
And the target liquid cooling pipe is closed to prevent the perils such as short circuit.In this way, other liquid cooling pipes continue as the battery pack 400
Heat sinking function is provided, enables the battery pack 400 to continue as load and energy is provided.
For example, the battery pack 400 is electric vehicle power supply.After closing target liquid cooling pipe, other liquid cooling pipes continue as electricity
Pond 500 is radiated, so that electric vehicle is able to maintain that short-range traveling, and is unlikely to cast anchor.In this way, finding user
There are after liquid leakage in battery pack 400, electric vehicle is reached maintenance store and is repaired.
Optionally, the battery 500 in the battery pack 400 is managed for convenience, the multiple battery 500 forms more
A battery modules, each liquid cooling pipe are responsible for the heat dissipation of different battery modules.The liquid cooling pipe is as unit of battery modules, around described
The peripheral disposition of the battery modules liquid cooling pipe.
While the processing unit turns off the target liquid cooling pipe, the confession for the battery modules that the target liquid cooling pipe is responsible for is cut off
Electrical circuit, so that the battery modules that the target liquid cooling pipe is responsible for stop working.It is born in this way, avoiding the target liquid cooling pipe
Battery 500 in the battery modules of duty continues working in the environment of lacking heat sinking function.
Referring once again to Fig. 2, in a kind of possible example, the first liquid cooling pipe 7001 in Fig. 2 is responsible for the first battery mould
The heat dissipation of group 4001 and the second battery modules 4002, the second liquid cooling pipe 7002 are responsible for third battery modules 4003 and the 4th battery mould
The heat dissipation of group 4004.After detecting that coolant liquid leakage occurs for the first liquid cooling pipe 7001, first liquid cooling pipe 7001 is closed, then
The current supply circuit of first liquid cooling pipe 7001 the first responsible battery modules 4001 and the second battery modules 4002 is turned off, so that the
One battery modules 4001 and the second battery modules 4002 stop working.Second liquid cooling pipe 7002 is responsible for 4003 He of third battery modules
The heat dissipation of 4th battery modules 4004 continues whole normal work.In this way, after making the first liquid cooling pipe 7001 that coolant liquid leakage occur,
Entire battery pack 400 is unlikely to whole delay machine.
Referring to figure 4., a kind of apparatus for testing weeping 110 is also provided for the present embodiment, apparatus for testing weeping 110 includes at least
One functional module that can be stored in memory in a software form.Wherein, the memory may be, but not limited to, at random
It accesses memory (Random Access Memory, RAM), read-only memory (Read Only Memory, ROM), may be programmed
Read-only memory (Programmable Read-Only Memory, PROM), erasable read-only memory (Erasable
Programmable Read-Only Memory, EPROM), electricallyerasable ROM (EEROM) (Electric Erasable
Programmable Read-Only Memory, EEPROM) etc..Wherein, for storing program, the processor exists memory
It receives after executing instruction, executes described program.
Functionally divide, apparatus for testing weeping 110 may include include obtaining module 1101 and judgment module 1102.
The acquisition module 1101 is used to detect the resistance of the cable type water sensor 600 for the acquisition module 1101
Value variation.
In the present embodiment, which is used to execute the step S100 in Fig. 2, about the acquisition module 1101
Detailed description can refer to step S100 detailed description.
The judgment module 1102 is used to detect that the change in resistance of the cable type water sensor 600 to be more than preset range
When, the current supply circuit of the battery pack 400 is cut off, so that the battery pack 400 stops working.
In the present embodiment, which is used to execute the step S200 in Fig. 2, about the judgment module 1102
Detailed description can refer to step S200 detailed description.
Battery pack, method for detecting leakage and device provided by the embodiments of the present application are applied to field of batteries.In battery pack
Multiple batteries be formed by gap, be arranged cable type water sensor.It reveals when liquid occurs in the battery pack by the line
When cable formula water sensor detects, the resistance value of the cable type water sensor can be caused to change.By with the cable type
The processing unit that water sensor is electrically connected detects the change in resistance situation of the cable type water sensor, determines in battery pack
Whether liquid leakage is occurred.In this way, the characteristic of detection leakage situation is used equally for by the cable type water sensor each position,
The cable type water sensor is arranged in the corresponding position of the battery pack, the sensitivity of leakage detection is improved, has ensured electricity
The safety of Chi Bao.
In embodiment provided herein, it should be understood that disclosed device and method, it can also be by other
Mode realize.The apparatus embodiments described above are merely exemplary, for example, the flow chart and block diagram in attached drawing are shown
According to device, the architectural framework in the cards of method and computer program product, function of multiple embodiments of the application
And operation.In this regard, each box in flowchart or block diagram can represent one of a module, section or code
Point, a part of the module, section or code includes one or more for implementing the specified logical function executable
Instruction.It should also be noted that function marked in the box can also be attached to be different from some implementations as replacement
The sequence marked in figure occurs.For example, two continuous boxes can actually be basically executed in parallel, they sometimes may be used
To execute in the opposite order, this depends on the function involved.It is also noted that each of block diagram and or flow chart
The combination of box in box and block diagram and or flow chart can be based on the defined function of execution or the dedicated of movement
The system of hardware is realized, or can be realized using a combination of dedicated hardware and computer instructions.
In addition, each functional module in each embodiment of the application can integrate one independent portion of formation together
Point, it is also possible to modules individualism, an independent part can also be integrated to form with two or more modules.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) execute each embodiment the method for the application all or part of the steps.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above, the only various embodiments of the application, but the protection scope of the application is not limited thereto, it is any
Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain
Lid is within the scope of protection of this application.Therefore, the protection scope of the application shall be subject to the protection scope of the claim.
Claims (10)
1. a kind of battery pack, which is characterized in that the battery pack includes multiple batteries and at least one cable type water sensor；
The cable type water sensor is set to the multiple battery, and connect with processing unit, and the processing unit is used for
The change in resistance of the cable type water sensor is detected, and institute is determined according to the change in resistance of the cable type water sensor
It states in battery pack with the presence or absence of the liquid of leakage.
2. battery pack according to claim 1, which is characterized in that the cable type water sensor is set to the multiple
In gap between battery.
3. battery pack according to claim 2, which is characterized in that be provided between the gap between the multiple battery to
A few liquid cooling pipe, the cable type water sensor is routed along the trend of the liquid cooling pipe, and is arranged in the liquid cooling
Whether the lower section of pipe, the liquid to detect in the liquid cooling pipe leak.
4. battery pack according to claim 1, which is characterized in that the surface of the cable type water sensor is provided with easily
Adsorb the water wetted material of liquid.
5. according to battery pack according to claim 1, which is characterized in that the battery pack further includes alarm unit, described
Alarm unit is connect with the processing unit, for the processing unit detect liquid leakage when, in the processing unit
Control issues warning message.
6. a kind of method for detecting leakage, which is characterized in that the processing list applied to the described in any item battery packs of claim 1-5
Member, which comprises
Detect the change in resistance of the cable type water sensor；
When detecting that the change in resistance of the cable type water sensor is more than preset range, the power supply for cutting off the battery pack is returned
Road, so that the battery pack stops working.
7. method for detecting leakage according to claim 6, which is characterized in that the processing unit record has the cable type
The corresponding relationship of liquid leakage position, the method are also wrapped in the different change in resistance sections of water sensor and the battery pack
It includes:
According to the constant interval of the cable type water sensor resistance value, the position that liquid leakage occurs in the battery pack is determined
It sets.
8. method for detecting leakage according to claim 7, which is characterized in that the processing unit record has each liquid cooling
The position in the battery pack of pipe, the method also includes:
The position of the generation liquid leakage is compared with the position in the battery pack of each liquid cooling pipe, is determined
The target liquid cooling pipe of liquid leakage occurs, and closes the target liquid cooling pipe.
9. method for detecting leakage according to claim 8, which is characterized in that the multiple multiple battery moulds of battery composition
Group, each liquid cooling pipe are responsible for the heat dissipation of different battery modules, the electricity that the processing unit record has each liquid cooling pipe responsible
Chi Mo group, the method also includes:
The current supply circuit for the battery modules that the target liquid cooling pipe is responsible for is cut off, so that the electricity that the target liquid cooling pipe is responsible for
Chi Mo group stops working.
10. a kind of apparatus for testing weeping, which is characterized in that the processing applied to the described in any item battery packs of claim 1-5
Unit, the apparatus for testing weeping include obtaining module and judgment module；
The change in resistance for obtaining module and being used to detect the cable type water sensor；
When the judgment module is used to detect that the change in resistance of the cable type water sensor to be more than preset range, institute is cut off
The current supply circuit of battery pack is stated, so that the battery pack stops working.
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| CN201910708785.0A CN110243551A (en) | 2019-08-01 | 2019-08-01 | Battery pack, method for detecting leakage and device |
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| CN201910708785.0A CN110243551A (en) | 2019-08-01 | 2019-08-01 | Battery pack, method for detecting leakage and device |
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| CN113154271A (en) * | 2021-05-06 | 2021-07-23 | 蜂巢能源科技有限公司 | Liquid leakage detection system and method and liquid cooling energy storage system |
| CN113686513A (en) * | 2021-07-12 | 2021-11-23 | 厦门科灿信息技术有限公司 | Liquid leakage positioning method and device and electronic equipment |
| CN114243130A (en) * | 2021-12-20 | 2022-03-25 | 广州小鹏汽车科技有限公司 | Battery pack leakage detection method, battery pack, vehicle and storage medium |
| CN114252204A (en) * | 2020-09-21 | 2022-03-29 | 华为技术有限公司 | Node and electronic equipment |
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| CN113686513B (en) * | 2021-07-12 | 2024-02-13 | 厦门科灿信息技术有限公司 | Liquid leakage positioning method and device and electronic equipment |
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