CN108318827A - Apparatus for testing weeping, system and electric vehicle - Google Patents
Apparatus for testing weeping, system and electric vehicle Download PDFInfo
- Publication number
- CN108318827A CN108318827A CN201810186472.9A CN201810186472A CN108318827A CN 108318827 A CN108318827 A CN 108318827A CN 201810186472 A CN201810186472 A CN 201810186472A CN 108318827 A CN108318827 A CN 108318827A
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- Prior art keywords
- battery
- leakage
- battery module
- testing weeping
- earth point
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- 238000012360 testing method Methods 0.000 title claims abstract description 50
- 238000001514 detection method Methods 0.000 claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 238000009413 insulation Methods 0.000 claims abstract description 32
- 239000004020 conductor Substances 0.000 claims abstract description 28
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 230000008859 change Effects 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 5
- 230000008439 repair process Effects 0.000 claims description 4
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims description 2
- 101100489713 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GND1 gene Proteins 0.000 description 21
- 101100489717 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GND2 gene Proteins 0.000 description 17
- 239000002826 coolant Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000011258 core-shell material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
Abstract
A kind of apparatus for testing weeping of offer of the embodiment of the present invention, system and electric vehicle, are related to power battery leakage detection technique field.Wherein, the apparatus for testing weeping includes insulating board body, and the insulating board body is set to the lower section inside the Battery case and positioned at the battery module；Plain conductor is provided in the insulating board body, the Battery case is provided with babinet through-hole, and one end of the plain conductor is connect by the babinet through-hole with the earth point outside Battery case；The apparatus for testing weeping further includes leakage detection circuit, the leakage detection circuit is used to detect the resistance between the cathode of the battery module and the earth point, the situation of change of the insulation resistance between cathode and earth point by detecting the battery module, judge that the battery module or liquid cooling flat tube whether there is liquid leakage, to avoid power battery from causing short circuit because of liquid leakage, the safety of power battery is improved.
Description
Technical field
The present invention relates to power battery leakage detection technique fields, in particular to apparatus for testing weeping, system and electricity
Motor-car.
Background technology
Power battery is the important component of electric vehicle, and the insulation safety of power battery is to electric vehicle to closing weight
It wants.If electrolyte leakage occurs in the battery core in power battery, it is likely to result in external short circuit between different modules, causes battery and rises
Fire；If the coolant liquid in liquid cooling flat tube leaks, it is cold that different location battery core forms potential difference electrolysis under the action of coolant liquid
But liquid causes battery core electrolyte to leak, it is equally possible to cause above-mentioned danger to aggravate the corrosion of single battery core shell.
Currently, the power battery leakage detection circuit that electric vehicle uses all be by detect power battery high-pressure section with
Resistance sizes between Battery case judge the insulating properties of battery.
However, Battery case has all carried out electrophoretic process for antirust, it is difficult to form one by Battery case in this way
High pressure is leaked to the access of low pressure so as to cause the coolant liquid in the leakage of single battery core electrolyte, liquid cooling flat tube in power battery
Or box sealing failure water inlet is difficult to be detected, and failure is caused to fail to report.Meanwhile it being easy to human body when battery repairs or detects
It damages.
Invention content
In order to overcome above-mentioned deficiency in the prior art, the purpose of the present invention is to provide a kind of apparatus for testing weeping, it is
System and electric vehicle can detect that by the apparatus for testing weeping and whether there is leakage failure inside Battery case, to avoid
Power battery causes short circuit because of liquid leakage, improves the safety of power battery.
To achieve the goals above, the technical solution that present pre-ferred embodiments use is as follows：
The embodiment of the present invention provides a kind of apparatus for testing weeping, is applied to power battery and carries out leakage detection, the power
Battery includes Battery case and the battery module being set to inside the Battery case and is used to carry out heat to the battery module
The liquid cooling flat tube of management；
The apparatus for testing weeping includes insulating board body, and the insulating board body is set to inside the Battery case and is located at
The lower section of the battery module；
Plain conductor is provided in the insulating board body, the Battery case is provided with babinet through-hole, the plain conductor
One end connect with the earth point outside Battery case by the babinet through-hole；
The apparatus for testing weeping further includes leakage detection circuit, and the leakage detection circuit is for detecting the battery mould
Resistance between the cathode of block and the earth point, the insulated electro between cathode and earth point by detecting the battery module
The situation of change of resistance judges that the battery module or liquid cooling flat tube whether there is liquid leakage, wherein the battery module is born
Insulation resistance between pole and earth point includes the resistance and the insulation between the cathode and insulating board body of the battery module
Resistance in plate between plain conductor and earth point.
Optionally, the insulating board body is formed using the material manufacture for caning absorb leakage, and the material includes mica material.
Optionally, the plain conductor is embedded in the insulating board body.
Optionally, in the preferred embodiment, the plain conductor detour is embedded in the insulating board body.
In embodiments of the present invention, the leakage detection circuit includes：It is connected on cathode and the ground connection of the battery module
First resistor between point and capacitance, it is exhausted between the cathode and earth point of the first resistor, capacitance and the battery module
Edge resistance forms a RC charging and discharging circuits；
The leakage detection circuit further includes for the voltage source of the capacitor charging, and the voltage source is electrically connected to described
Between one resistance and the capacitance；
The leakage detection circuit further includes voltage acquisition end, and the voltage acquisition end is connected to the first resistor and connects
Between place, the voltage acquisition end is used to acquire between the cathode and earth point of battery module described in RC charging and discharging circuits
Voltage on insulation resistance.
Optionally, in the preferred embodiment, in the leakage detection circuit, between the capacitance and voltage source
It is also associated with protective resistance.
Optionally, in embodiments of the present invention, the battery module includes multiple single battery cores, the liquid cooling flat tube and list
Body battery core contacts and is provided at least one layer of liquid cooling flat tube between adjacent two layers single battery core.
Optionally, the earth point includes vehicle body metallic conductor.
The embodiment of the present invention also provides a kind of leakage detection system, and the leakage detection system includes：BMS units, terminal
Equipment, server and above-mentioned apparatus for testing weeping；
The BMS units are connect with the apparatus for testing weeping, the leakage situation for being detected according to apparatus for testing weeping
Generate leakage fault message；
The BMS units are also connect with the terminal equipment in communication, and leakage fault message is sent to institute by the BMS units
Terminal device is stated, and leakage fault message is uploaded to by server by the terminal device, so that technical staff repairs.
The embodiment of the present invention also provides a kind of electric vehicle, and the electric vehicle includes power battery and above-mentioned leakage detection dress
It sets；
The power battery provides electric power energy for electric vehicle；
The apparatus for testing weeping whether there is leakage failure for detecting the power battery.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, 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 the structural schematic diagram for the apparatus for testing weeping that inventive embodiments provide；
Fig. 2 is the leakage detection circuit schematic diagram of apparatus for testing weeping provided in an embodiment of the present invention；
Fig. 3 is the insulation resistance principle signal between the cathode and earth point of battery module provided in an embodiment of the present invention
Figure；
Fig. 4 is voltage acquisition end provided in an embodiment of the present invention output voltage and insulation resistance relation schematic diagram；
Fig. 5 is the principle schematic of leakage detection system provided in an embodiment of the present invention.
Icon：10- apparatus for testing weeping；101- plain conductors；102- insulating board bodies；103- babinet through-holes；104- leakages
Detection circuit；C- capacitances；R1- first resistors；R2- protective resistances；Riso- insulation resistances；GND1- earth points；GND2- battery moulds
The cathode of block；20-BMS units；30- terminal devices；40- servers.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention 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, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this field is common
All other embodiment that technical staff is obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be noted that the orientation or position of the instructions such as term "upper", "lower", "inner", "outside"
Set relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when the orientation or position usually put
Relationship is set, is merely for convenience of description of the present invention and simplification of the description, device is not indicated or implied the indicated or element is necessary
With specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；Can be
Mechanical connection can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
In concrete meaning.
Below in conjunction with the accompanying drawings, it elaborates to some embodiments of the present invention.In the absence of conflict, following
Feature in embodiment and embodiment can be combined with each other.
First embodiment
As shown in Figure 1, the embodiment of the present invention provides a kind of apparatus for testing weeping 10, it is applied to power battery and carries out leakage inspection
It surveys, the power battery includes Battery case and the battery module being set to inside the Battery case and is used for the battery
Module carries out the liquid cooling flat tube of heat management；
The apparatus for testing weeping 10 includes insulating board body 102, and the insulating board body 102 is set in the Battery case
Portion and the lower section for being located at the battery module；
Plain conductor 101 is provided in the insulating board body 102, the Battery case is provided with babinet through-hole 103, described
One end of plain conductor 101 is connect by the babinet through-hole 103 with the earth point GND1 outside Battery case；
As shown in Figures 2 and 3, the apparatus for testing weeping 10 further includes leakage detection circuit 104, the leakage detection electricity
Road 104 is used to detect the resistance between the cathode GND2 of the battery module and the earth point GND1, by detecting the electricity
The situation of change of insulation resistance Riso between the cathode GND2 and earth point GND1 of pond module, judges the battery module or liquid
Cold flat tube whether there is liquid leakage, wherein the insulation resistance between the cathode GND2 and earth point GND1 of the battery module
Riso includes plain conductor in resistance and the insulation board between the cathode GND2 of the battery module and insulating board body 102
Resistance between 101 and earth point GND1.
Testing principle：When the coolant liquid in electrolyte leakage or liquid cooling flat tube occurs for the single battery core in the battery module
When leakage, leakage liquid is absorbed by the insulating board body 102, makes the plain conductor being arranged in leakage liquid and insulating board body 102
101 contacts, since leakage liquid has electric action, to make between the cathode GND2 of battery module and insulating board body 102
Resistance reduces；Meanwhile the plain conductor 101 being arranged in the insulating board body 102 is connect with earth point GND1, constitutes a battery
Access between the cathode GND2 to earth point GND1 of module, to pass through the cathode GND2 and earth point that detect battery module
Insulation resistance Riso between GND1 can judge leakage failure whether occurs inside the Battery case of power battery.
Optionally, in order to fully absorb the leakage liquid inside Battery case, make leakage liquid and the insulating board body
Plain conductor 101 in 102 comes into full contact with, while reducing damage of the leakage liquid to battery module, and the insulating board body 102 is adopted
It is formed with the material manufacture for absorbing leakage function.
In the preferred embodiment, the insulating board body 102 uses mica material, the insulating board body 102
Shape can be set according to the concrete shape of power battery.
Optionally, in one embodiment of the invention, the plain conductor 101 is embedded in the insulating board body 102
In.
Refering to fig. 1, further, in order to increase area coverage of the plain conductor 101 in insulating board body 102, institute
It states plain conductor 101 to be embedded in the insulating board body 102 by the way of detour arrangement, to ensure that insulating board body 102 is appointed
Meaning position, which is absorbed into leakage, can be such that leakage is contacted with plain conductor 101.Compared to covering gold comprehensively by the way of detour arrangement
For belonging to conducting wire, a certain amount of plain conductor 101 can be saved, but still can guarantee the sensitivity of leakage detection.Meanwhile the gold
Belonging to conducting wire 101 can also be arranged by the way of multi-point sampling, and logical multi-point sampling can specifically detect power battery
Leakage position.
Referring to Fig.2, in embodiments of the present invention, the leakage detection circuit 104 includes：It is connected on the battery module
First resistor R1 and capacitance C, the first resistor R1, capacitance C between cathode GND2 and earth point GND1 and the battery mould
Insulation resistance Riso between the cathode GND2 and earth point GND1 of block forms a RC charging and discharging circuits；
The leakage detection circuit 104 further includes the voltage source Vin to charge for the capacitance C, and the voltage source Vin is electrically connected
It is connected between the first resistor R1 and the capacitance C；
The leakage detection circuit 104 further includes voltage acquisition end Vout, and the voltage acquisition end Vout is connected to described
Between first resistor R1 and earth point GND1, the voltage acquisition end Vout is for acquiring battery mould described in RC charging and discharging circuits
The voltage on insulation resistance Riso between the cathode GND2 and earth point GND1 of block.
In embodiments of the present invention, the voltage source Vin uses square wave pulse voltage source Vin, the electricity of the voltage source Vin
Pressure can carry out arbitrary adjustment according to actual conditions, when the voltage source Vin is high level, voltage source Vin to the capacitance C into
Row charging, when the voltage source Vin is low level, capacitance C electric discharges, the first resistor R1, capacitance C and the battery module
Cathode GND2 and earth point GND1 between insulation resistance Riso form a RC discharge loops, pass through the voltage acquisition end
Vout can collect the electricity at the both ends insulation resistance Riso constituted between the cathode GND2 of the battery module and earth point GND1
Pressure.When not leakage occurs for power battery, the insulation resistance that is constituted between the cathode GND2 and earth point GND1 of battery module
Riso values are higher, and the voltage acquisition end collected voltage values of Vout are big；When liquid leakage occurring inside power battery, battery mould
The insulation resistance Riso values constituted between the cathode GND2 and earth point GND1 of block reduce, the collected electricity of voltage acquisition end Vout
Pressure value is small.
As shown in figure 4, being closed for voltage acquisition end Vout output voltages provided in an embodiment of the present invention and insulation resistance Riso
It is schematic diagram, relational expression is：
Y=-0.0112x2+9.1459x+1385.4；
Wherein, y is the output voltage (unit of voltage acquisition end Vout：MV), x is cathode GND2 and the ground connection of battery module
Insulation resistance Riso value (units between point GND1：Kohm).When the insulation resistance Riso is mega-ohms, indicate described dynamic
Power battery insulation is all right, and liquid leakage situation does not occur；If the insulation resistance Riso is kilo-ohm grade, then it represents that institute
It states power battery and liquid leakage occurs.
Please continue to refer to Fig. 2, optionally, in order to protect the capacitance C in the leakage detection circuit 104, voltage source is prevented
Vin overtensions damage capacitance C is also associated between the capacitance C and voltage source Vin in the preferred embodiment
Protective resistance R2 is acted on by the partial pressure of protective resistance R2, can avoid the problem of voltage source Vin overtensions damage capacitance C.
Optionally, in inventive embodiments, using body shell as earth point GND1, it is thus understood that the earth point
GND1 includes arbitrary low pressure reference ground, and the low pressure reference ground may be, but not limited to, body shell.
Second embodiment
As shown in figure 5, the embodiment of the present invention also provides a kind of leakage detection system, the leakage detection system includes：BMS
Unit 20, terminal device 30, server 40 and above-mentioned apparatus for testing weeping 10；
The BMS units 20 are connect with the apparatus for testing weeping 10, the leakage for being detected according to apparatus for testing weeping 10
Liquid situation generates leakage fault message；
The BMS units 20 are also communicated to connect with the terminal device 30, and the BMS units 20 send out leakage fault message
The terminal device 30 is given, and leakage fault message is uploaded to by server 40 by the terminal device 30, so as to technology
Personnel repair.
The apparatus for testing weeping 10 detects the insulated electro between the cathode GND2 and earth point GND1 of battery module in real time
Riso situations of change are hindered, when apparatus for testing weeping 10 detects the insulation between the cathode GND2 of battery module and earth point GND1
When resistance Riso is kilo-ohm grade, indicates that leakage failure has occurred for battery, fault-signal is then fed back into BMS units 20, BMS is mono-
The fault-signal that member 20 is fed back according to apparatus for testing weeping 10 generates leakage fault message and is sent to terminal device 30, then eventually
Leakage fault message is uploaded to server 40 by end equipment 30, and it is dynamic that technical staff can obtain automobile at the first time by server 40
Power battery leakage fault message avoids causing thing because of power battery leakage failure in order to the processing of technical staff's on-call maintenance
Therefore.
The embodiment of the present invention also provides a kind of electric vehicle, and the electric vehicle includes power battery and above-mentioned leakage detection dress
Set 10；
The power battery provides electric power energy for electric vehicle；
The apparatus for testing weeping 10 whether there is leakage failure for detecting the power battery.
The electric vehicle can detect power battery and whether there is leakage feelings in real time by the way that the apparatus for testing weeping 10 is arranged
Condition greatly improves the safety of power battery.
In summary：An embodiment of the present invention provides a kind of apparatus for testing weeping, system and electric vehicles.Wherein, the leakage
Liquid detection device is applied to power battery and carries out leakage detection comprising insulating board body, the insulating board body are set to the electricity
Pond box house and the lower section for being located at the battery module；Plain conductor, the Battery case are provided in the insulating board body
It is provided with babinet through-hole, one end of the plain conductor is connect by the babinet through-hole with the earth point outside Battery case；
The apparatus for testing weeping further includes leakage detection circuit, and the leakage detection circuit is used to detect the cathode of the battery module
With the resistance between the earth point, the insulation resistance between cathode and earth point by detecting the battery module in real time
Situation of change judges that the battery module or liquid cooling flat tube whether there is liquid leakage, to avoid power battery from being let out because of liquid
It leaks and causes short circuit, improve the safety of power battery.
The leakage detection system includes BMS units, terminal device, server and above-mentioned apparatus for testing weeping, institute
It states apparatus for testing weeping and detects insulation resistance situation of change between the cathode of battery module and earth point in real time, when leakage detects
Device detects feeds back to BMS units, the failure that BMS units are fed back according to apparatus for testing weeping when fault-signal by fault-signal
Signal generates leakage fault message and is sent to terminal device, and then leakage fault message is uploaded to server by terminal device,
Related technical personnel can obtain automobile fault information at the first time by server, in order to which technical staff's on-call maintenance is handled,
It further avoids power battery leakage and causes accident, ensure automotive safety and personal safety.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention, and any reference signs in the claims should not be construed as limiting the involved claims.
Claims (10)
1. a kind of apparatus for testing weeping, which is characterized in that be applied to power battery and carry out leakage detection, the power battery includes
Battery case and the battery module being set to inside the Battery case and for the battery module carry out heat management liquid
Cold flat tube；
The apparatus for testing weeping includes insulating board body, and the insulating board body is set to inside the Battery case and positioned at described
The lower section of battery module；
It is provided with plain conductor in the insulating board body, the Battery case is provided with babinet through-hole, and the one of the plain conductor
End is connect by the babinet through-hole with the earth point outside Battery case；
The apparatus for testing weeping further includes leakage detection circuit, and the leakage detection circuit is for detecting the battery module
Resistance between cathode and the earth point passes through the insulation resistance between the cathode and earth point of the detection battery module
Situation of change judges that the battery module or liquid cooling flat tube whether there is liquid leakage, wherein the cathode of the battery module with
Insulation resistance between earth point includes in resistance and the insulation board between the cathode and insulating board body of the battery module
Resistance between plain conductor and earth point.
2. apparatus for testing weeping as described in claim 1, which is characterized in that the insulating board body is using the material for caning absorb leakage
Material is fabricated, and the material includes mica material.
3. apparatus for testing weeping as described in claim 1, which is characterized in that the plain conductor is embedded in the insulating board body
In.
4. apparatus for testing weeping as described in claim 1, which is characterized in that the plain conductor detour is embedded in the insulation
In plate body.
5. apparatus for testing weeping as described in claim 1, which is characterized in that the leakage detection circuit includes：It is connected on institute
State the first resistor and capacitance between the cathode of battery module and earth point, the first resistor, capacitance and the battery module
Cathode and earth point between insulation resistance formed a RC charging and discharging circuits；
The leakage detection circuit further includes for the voltage source of the capacitor charging, and the voltage source is electrically connected to first electricity
Between resistance and the capacitance；
The leakage detection circuit further includes voltage acquisition end, and the voltage acquisition end is connected to the first resistor and earth point
Between, the voltage acquisition end is used to acquire the insulation between the cathode and earth point of battery module described in RC charging and discharging circuits
Ohmically voltage.
6. apparatus for testing weeping as claimed in claim 5, which is characterized in that in the leakage detection circuit, the capacitance with
Protective resistance is also associated between voltage source.
7. apparatus for testing weeping as described in claim 1, which is characterized in that the battery module includes multiple single battery cores,
The liquid cooling flat tube contacts with single battery core and is provided at least one layer of liquid cooling flat tube between adjacent two layers single battery core.
8. apparatus for testing weeping as described in claim 1, which is characterized in that the earth point includes vehicle body metallic conductor.
9. a kind of leakage detection system, which is characterized in that the leakage detection system includes：BMS units, terminal device, service
Apparatus for testing weeping described in any one of device and claim 1-8；
The BMS units are connect with the apparatus for testing weeping, and the leakage situation for being detected according to apparatus for testing weeping generates
Leakage fault message；
The BMS units are also connect with the terminal equipment in communication, and leakage fault message is sent to the end by the BMS units
End equipment, and leakage fault message is uploaded to by server by the terminal device, so that technical staff repairs.
10. a kind of electric vehicle, which is characterized in that the electric vehicle includes described in any one of power battery and claim 1-8
Apparatus for testing weeping；
The power battery provides electric power energy for electric vehicle；
The apparatus for testing weeping whether there is leakage failure for detecting the power battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810186472.9A CN108318827B (en) | 2018-03-07 | 2018-03-07 | Liquid leakage detection device, system and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810186472.9A CN108318827B (en) | 2018-03-07 | 2018-03-07 | Liquid leakage detection device, system and electric vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN108318827A true CN108318827A (en) | 2018-07-24 |
| CN108318827B CN108318827B (en) | 2023-11-28 |
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| CN201810186472.9A Active CN108318827B (en) | 2018-03-07 | 2018-03-07 | Liquid leakage detection device, system and electric vehicle |
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| CN109269733A (en) * | 2018-09-14 | 2019-01-25 | 惠州亿纬锂能股份有限公司 | A kind of battery case method for detecting leakage and system |
| CN109813507A (en) * | 2019-01-30 | 2019-05-28 | 无锡格林司通自动化设备有限公司 | A kind of flexible-packed battery leak test method and mechanism |
| CN110160712A (en) * | 2019-06-03 | 2019-08-23 | 浙江泰德汽车零部件有限公司 | Coolant liquid leak detection apparatus and its detection method and electric car in battery pack |
| CN110243551A (en) * | 2019-08-01 | 2019-09-17 | 华霆（合肥）动力技术有限公司 | Battery pack, method for detecting leakage and device |
| CN111751742A (en) * | 2020-06-30 | 2020-10-09 | 上海瓶安新能源科技有限公司 | Battery pack water inlet and leakage detection device with self-checking function and control method |
| CN111751745A (en) * | 2020-06-30 | 2020-10-09 | 上海瓶安新能源科技有限公司 | Battery pack leakage detection device with self-checking function and control method thereof |
| CN111751743A (en) * | 2020-06-30 | 2020-10-09 | 上海瓶安新能源科技有限公司 | Battery pack water detection device with self-checking function and control method thereof |
| CN112237301A (en) * | 2019-07-17 | 2021-01-19 | 日本烟草产业株式会社 | Power supply unit for an aerosol-generating device and method for controlling a power supply unit |
| CN112242573A (en) * | 2020-09-04 | 2021-01-19 | 东风时代(武汉)电池系统有限公司 | Battery package weeping fault detection system and car |
| CN112816882A (en) * | 2021-01-22 | 2021-05-18 | 中国第一汽车股份有限公司 | Test device and test method for leakage of cooling liquid of liquid-cooled power battery assembly |
| CN113036237A (en) * | 2019-12-23 | 2021-06-25 | 标致雪铁龙汽车股份有限公司 | Battery package coolant liquid leakage detection system and vehicle |
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| CN111751745B (en) * | 2020-06-30 | 2022-12-06 | 上海瓶安新能源科技有限公司 | Battery pack leakage detection device with self-checking function and control method thereof |
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| CN113479074A (en) * | 2021-06-22 | 2021-10-08 | 东风柳州汽车有限公司 | Battery package structure, detecting system and vehicle |
| WO2023050851A1 (en) * | 2021-09-30 | 2023-04-06 | 华为技术有限公司 | Liquid leakage detection apparatus and method, and computer device |
| 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 |
| CN116344980A (en) * | 2023-05-29 | 2023-06-27 | 苏州精控能源科技有限公司 | Battery core leakage self-diagnosis dynamic reconstruction system, method and storage medium in battery pack |
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