CN109342965A - Alternating current-direct current internal resistance and insulation impedance detection system and method for battery module - Google Patents
Alternating current-direct current internal resistance and insulation impedance detection system and method for battery module Download PDFInfo
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- CN109342965A CN109342965A CN201811520489.XA CN201811520489A CN109342965A CN 109342965 A CN109342965 A CN 109342965A CN 201811520489 A CN201811520489 A CN 201811520489A CN 109342965 A CN109342965 A CN 109342965A
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Abstract
The present invention provides a kind of alternating current-direct current internal resistances and insulation impedance detection system for battery module, according to the characteristic of weldedization square aluminum shell mold block, by designing targetedly detection method and control strategy, and by the technique in conjunction with detecting instrument and automatic mechanism forming apparatus, the detection of the voltage, AC internal Resistance, DC impedance and insulation impedance of battery module, and precise and high efficiency can be completed within a short period of time.
Description
Technical field
The present invention relates to vehicle-mounted and energy-storage battery module testing technical fields, and in particular to a kind of friendship for battery module
DC internal resistance and insulation impedance detection system and method.
Background technique
Welded electrochemical cell module in vehicle-mounted and energy storage battery system is power system of electric automobile and energy storage electric power
The production assembly of the important component of system, battery module includes passing through structure gluing knot, metal by multiple lithium cells
The component technologies such as bandage ties up, laser welding metal bandage are composed.The off-line test of battery module mainly includes in exchange
Resistance detection, voltage detecting, insulation impedance detection.The DC internal resistance detection of battery module is also can be with reaction cell module electrochemistry
The crucial detection of performance, but detected compared to AC internal Resistance, this method usually requires large-scale charging/discharging apparatus and carries out
Multiple pulses are discharged to complete to test, and inconvenient for operation, time-consuming, and selection survey is usually carried out after battery module off-line test
Examination, thus need it is a kind of battery module can quickly be carried out AC internal Resistance and DC internal resistance test, in conjunction with insulation impedance test
Efficient off-line test method.Additionally due to each detection project of module requires the regular hour, traditional artificial detection is poor
Different big error-prone, data record is cumbersome, and has certain risk.
Summary of the invention
The purpose of the present invention is to provide a kind of alternating current-direct current internal resistance for battery module and insulation impedance detection system and
Method, according to the characteristic of weldedization square aluminum shell mold block, by designing targetedly detection method and control strategy, and will
Technique forming apparatus in conjunction with detecting instrument and automatic mechanism can complete voltage, the exchange of battery module within a short period of time
Internal resistance, the detection of DC impedance and insulation impedance, and precise and high efficiency.
In order to achieve the above object, the invention is realized by the following technical scheme:
A kind of alternating current-direct current internal resistance and insulation impedance detection system for battery module, the battery module include module
Stagnation pressure jumper, module upper metal bandage and module lower metal bandage, characterized in that the system includes fixed inspection
Survey mechanism and sliding testing agency, DC Electronic Loads, battery voltage internal resistance tester, battery insulation impedance instrument, first
Control unit, the second control unit, third control unit, PLC and MES system, in which:
Fixed test mechanism and sliding testing agency, DC Electronic Loads, battery voltage internal resistance tester, battery insulation resistance
Anti- tester, first control unit, the second control unit, third control unit pass through PLC respectively and connect MES system；
The fixed test mechanism is identical with sliding both testing agencies configuration, and separately include upper detection head and
Lower part detector；
Wherein, upper detection head includes: voltage internal resistance detection probe；Connect voltage internal resistance detection probe and for will be under it
Press the first push cylinder being pushed on the stagnation pressure jumper of battery module；Module voltage end insulation impedance detection probe；Connection
Module voltage end insulation impedance detection probe is simultaneously pushed away for being pushed second be pushed on the stagnation pressure jumper of battery module
It supplies gas cylinder；For positioning voltage internal resistance detection probe and module voltage end insulation impedance detection probe to battery module stagnation pressure
The transplanting fine tuning cylinder and transplanting coarse adjustment cylinder of jumper；
Wherein, lower part detector includes: the module top bandage for pressing against on battery module upper metal bandage is exhausted
Edge impedance probes；Module lower strap insulation impedance for pressing against on battery module lower metal bandage, which detects, to be visited
Needle；
The battery voltage internal resistance tester is connected and fixed testing agency by first control unit and sliding detects
Voltage internal resistance detection probe in mechanism, for battery module open-circuit voltage and AC internal Resistance test；
The DC Electronic Loads connect battery module by the second control unit, in the direct current to battery module
Resistance is tested；
The battery insulation impedance instrument is connected and fixed testing agency and sliding detection machine by third control unit
Module voltage end insulation impedance detection probe, module top banding insulation impedance probes and module lower strap in structure
Insulation impedance detection probe, for carrying out insulation impedance test to battery module；
The first control unit includes relay K11 and relay K12；The battery voltage internal resistance detector
Both ends pass through respectively relay K11 and relay K12 be connected and fixed testing agency and slide testing agency in voltage
Internal resistance detection probe；
Second control unit includes relay K21 and relay K22；The both ends of the DC Electronic Loads
Testing agency is determined by relay K21 and relay K22 connection respectively and slides the voltage internal resistance detection in testing agency
Probe；
The third control unit includes relay K31, relay K32, relay K33, relay K34；Described
The first input end of insulation impedance tester is connected and fixed the module voltage end insulation impedance in testing agency by relay K31
Detection probe, the second input terminal slide the module voltage end insulation impedance detection in testing agency by relay K33 connection
Probe；On the one hand the output end of the insulation impedance tester passes through relay K32 and is connected and fixed testing agency and sliding inspection
The module top banding insulation impedance probes and module lower part insulation impedance detection probe in mechanism are surveyed, on the other hand also
By relay K34 be connected and fixed testing agency and slide testing agency on module top banding insulation impedance probes with
And module lower part insulation impedance detection probe.
The above-mentioned alternating current-direct current internal resistance and insulation impedance detection system for battery module, wherein also include:
Module detection platform；
Pan feeding track is arranged in module detection platform, by PLC connection MES system for planning the shifting of battery module
Dynamic path；
The side of module detection platform is arranged in by PLC connection MES system in servo slide table；
Fixed metal support and removable metallic support, fixed test mechanism are arranged by fixed metal support in module
The corresponding position of detection platform, sliding testing agency connects servo slide table by removable metallic support, in the work of servo slide table
It is moved on the movement routine direction of pan feeding track with lower slider testing agency, and removable metallic support connects MES by PLC
System.
The above-mentioned alternating current-direct current internal resistance and insulation impedance detection system for battery module, wherein also include:
Module assembling jig, by PLC connection MES system, battery module is pushed into described with module assembling jig
In pan feeding track；
Double-speed chain conveyer belt is arranged in pan feeding track by PLC connection MES system, is used for and battery module mounting clip
Battery module is moved in module detection platform by tool cooperation.
The above-mentioned alternating current-direct current internal resistance and insulation impedance detection system for battery module, wherein also include:
The corresponding position of module detection platform is arranged in by PLC connection MES system in code reader, connects MES system,
For reading the side bar code on battery module in the moving process of battery module and inputting in MES system.
The above-mentioned alternating current-direct current internal resistance and insulation impedance detection system for battery module, wherein also include:
Stop positioning mechanism, by PLC connection MES system, for moving after module assembling jig is moved to limit point
Make to stop module assembling jig to continue to move to along pan feeding track；
Lifting body, by PLC connection MES system, for separating module assembling jig with double-speed chain conveyer belt；
Belt fine adjustment mechanism, by PLC connection MES system, in module assembling jig and double-speed chain conveyer belt point
Section is finely adjusted from the rear position to battery module.
The above-mentioned alternating current-direct current internal resistance and insulation impedance detection system for battery module, in which:
The MES system includes for showing that the module bar code, model parameter and battery voltage internal resistance of battery module are surveyed
Try the MES data display screen of the operating status of instrument and battery insulation impedance instrument.
The above-mentioned alternating current-direct current internal resistance and insulation impedance detection system for battery module, wherein also include:
Human-machine Control interface, it is negative for predetermined voltage internal resistance test device, DC electronic by PLC connection MES system
Carry the device parameter with battery insulation impedance instrument.
A method of for detecting alternating current-direct current internal resistance and the insulation impedance of battery module, using above-mentioned system come real
It is existing, in which:
Fixed test mechanism and sliding testing agency are in place；
Open-circuit voltage, AC internal Resistance test are first carried out, then carries out DC internal resistance test, finally carries out insulation impedance test,
It is spaced the several seconds between each test, fixed test mechanism and the playback of sliding testing agency after the completion of test, test data is by MES system
System show simultaneously judged and handled, if test data is qualified, battery module continues to circulate, if test data does not conform to
Lattice, MES system carry out alarm battery module and wait subsequent processing；
The test of the open-circuit voltage and AC internal Resistance be by relay K11, relay K12 be attracted, other after
Electric appliance disconnects to complete；
The test of the DC internal resistance is attracted by relay K21, relay K22, other relays, which disconnect, have been come
At；
The insulation impedance test needs to test twice, is attracted by relay K31, relay K32 for the first time,
He disconnects to complete relay, is to be attracted by relay K33, relay K34 for the second time, other relays disconnect to complete.
Compared with the prior art, the present invention has the following advantages: it, will for the characteristic of weldedization square aluminum shell mold block
Battery voltage internal resistance tester, DC Electronic Loads, insulation impedance mechanism for testing are had by probe, cylinder, relay etc.
Effect integration, rationally designs the probe method of operation, and the control strategy of relay completes the reality of a variety of detection functions with lesser layout
It is existing, and more rapidly, it is accurately finished the offline EOL test of the open-circuit voltage, AC internal Resistance, DC internal resistance, insulation impedance of module；
Many automatic mechanisms have been used to complete the operation of detection process, and assembly line can be added, in conjunction with MES system, intelligent measurement
And diagnosis, it is not necessarily to manual intervention, cost is reduced, improves efficiency.
Detailed description of the invention
Fig. 1 is the top view of present system；
Fig. 2 is the left view of present system；
Fig. 3 is the front view of present system；
Fig. 4 is the partial enlarged view of the fixed test mechanism in present system；
Fig. 5 is the partial enlarged view of the sliding testing agency in present system；
Fig. 6 is the perspective view of present system；
Fig. 7 is the open-circuit voltage of present system and the test process electrical schematic diagram of AC internal Resistance；
Fig. 8 is the test process electrical schematic diagram of the DC internal resistance of present system；
Fig. 9 is first group of insulation impedance test process electrical schematic diagram of present system；
Figure 10 is second group of insulation impedance test process electrical schematic diagram of present system.
Specific embodiment
The present invention is further elaborated by the way that a preferable specific embodiment is described in detail below in conjunction with attached drawing.
As shown in figs. 1 to 6, the invention proposes a kind of alternating current-direct current internal resistances and insulation impedance detection system for battery module
System, the battery module include module stagnation pressure jumper 28, module upper metal bandage 26 and module lower metal bandage
27；The system includes that fixed test mechanism 14 and sliding testing agency 15, DC Electronic Loads 5, battery voltage internal resistance are surveyed
Try instrument 4, battery insulation impedance instrument 6, PLC and MES system, in which:
The fixed test mechanism 14 is identical with the 15 the two configuration of sliding testing agency, and separately includes upper detection head
And lower part detector；
Wherein, upper detection head includes: voltage internal resistance detection probe 18；Connect voltage internal resistance detection probe 18 and for inciting somebody to action
It pushes the first push cylinder 17 being pushed on the stagnation pressure jumper 28 of battery module；Insulation impedance detection in module voltage end is visited
Needle 19；Link block voltage end insulation impedance detection probe 19 simultaneously is used to be pushed the stagnation pressure jumper for being pushed to battery module
The second push cylinder 22 on 28；For by voltage internal resistance detection probe 18 and module voltage end insulation impedance detection probe 19
It positions to the transplanting of battery module stagnation pressure jumper 28 and finely tunes cylinder 24 and transplanting coarse adjustment cylinder 25；
Wherein, lower part detector includes: the module top bandage for pressing against on battery module upper metal bandage 26
Insulation impedance detection probe 20；Module lower strap insulation impedance inspection for pressing against on battery module lower metal bandage 27
Probing needle 21；
As shown in Fig. 7~10, the battery voltage internal resistance tester 4 is connected and fixed detection machine by first control unit
Structure 14 and sliding testing agency 15 in voltage internal resistance detection probe 18, for battery module open-circuit voltage and exchange
Internal resistance is tested；
The DC Electronic Loads 5 connect battery module by the second control unit, for the direct current to battery module
Internal resistance is tested；
The battery insulation impedance instrument 6 is connected and fixed testing agency 14 by third control unit and sliding detects
Module voltage end insulation impedance detection probe 19, module top banding insulation impedance probes 20 and module in mechanism 15
Lower strap insulation impedance detection probe 21, for carrying out insulation impedance test to battery module；
The first control unit includes relay K11 and relay K12；The battery voltage internal resistance detector
4 both ends pass through relay K11 respectively and relay K12 is connected and fixed in testing agency 14 and sliding testing agency 15
Voltage internal resistance detection probe 18；
Second control unit includes relay K21 and relay K22；The two of the DC Electronic Loads 5
Testing agency is determined by relay K21 and relay K22 connection respectively and slides the voltage internal resistance in testing agency 15 in end
Detection probe 18；
The third control unit includes relay K31, relay K32, relay K33, relay K34；Described
The first input end of insulation impedance tester is connected and fixed the insulation resistance of the module voltage end in testing agency 14 by relay K31
Anti- detection probe 19, the second input terminal is slided the module voltage end in testing agency 15 and insulated by relay K33 connection to be hindered
Anti- detection probe 19；On the one hand pass through relay K32 is connected and fixed testing agency to the output end of the insulation impedance tester
14 detect with the module top banding insulation impedance probes 20 and module lower part insulation impedance slided in testing agency 15
21 are visited, testing agency 14 is also on the other hand connected and fixed by relay K34 and slides the module top in testing agency 15 and is tied up
Band insulation impedance detection probe 20 and the detection of module lower strap insulation impedance visit 21.
The above-mentioned alternating current-direct current internal resistance and insulation impedance detection system for battery module, wherein also include: module detection
Platform；Pan feeding track 1 is arranged in module detection platform, for planning the movement routine of battery module；Servo slide table 11, if
It sets in the side of module detection platform；Fixed metal support 16 and removable metallic support 23, fixed test mechanism 14 pass through
The corresponding position of module detection platform is arranged in fixed metal support 16, and sliding testing agency 15 is by moving metallic support 23
Servo slide table 11 is connected, testing agency 15 is slided under the action of servo slide table 11 on the movement routine direction of pan feeding track 1
It is mobile.In this way, after battery module is pushed to module detection platform, fixed test mechanism 14 be it is fixed, slide detection machine
Structure 15 can be adjusted according to battery module length.
Preferably, this system also includes: module assembling jig 7, battery module are pushed into described with module assembling jig 7
Pan feeding track 1 in；Double-speed chain conveyer belt 2 is arranged in pan feeding track 1, will be electric for cooperating with battery module assembling jig 7
Pond module is moved in module detection platform.The corresponding position of module detection platform is arranged in code reader 3, connects MES system
System, for reading the side bar code on battery module in the moving process of battery module and inputting in MES system.Stop positioning
Mechanism 10, for acting after module assembling jig 7 is moved to limit point to stop module assembling jig 7 along pan feeding track 1
It continues to move to；Lifting body 9, for separating module assembling jig 7 with double-speed chain conveyer belt 2；Belt fine adjustment mechanism 8 uses
In being finely adjusted section to the position of battery module after module assembling jig 7 is separated with double-speed chain conveyer belt 2.
In the present embodiment, MES system also includes the module bar code, model parameter and cell voltage for showing battery module
The MES data display screen 12 of the operating status of internal resistance test device 4 and battery insulation impedance instrument 6, facilitates access；And it is man-machine
Control interface 13 is used for predetermined voltage internal resistance test device 4, DC Electronic Loads 5 and battery by PLC connection MES system
The device parameter of insulation impedance tester 6.
Pan feeding track 1, double-speed chain conveyer belt 2, code reader 3, battery voltage internal resistance tester 4, DC Electronic Loads 5, electricity
Pool insulation impedance instrument 6, module assembling jig 7, belt fine adjustment mechanism 8, lifting body 9 stop positioning mechanism 10, servo
Testing agency 15, voltage internal resistance are slided by slide unit 11, MES data display screen 12, Human-machine Control interface 13, fixed test mechanism 14
Detection probe push cylinder 17, voltage internal resistance detection probe 18, module voltage end insulation impedance detection probe 19, module top is tied up
Band insulation impedance detection probe 20,21,22. insulation impedance detection probe push cylinder of module lower part insulation impedance detection probe
22, metallic support 23 is moved, transplanting fine tuning cylinder 24 transplants coarse adjustment cylinder 25, relay K11, relay K12, relay
K21, relay K22, relay K31, relay K32, relay K33, the signal of relay K34 are all fed back by PLC to MES
In system, i.e., MES system is connected by PLC.
As shown in Fig. 7~10, the alternating current-direct current internal resistance and insulation resistance that the invention also provides a kind of for detecting battery module
Anti- method realized using above-mentioned system, it includes:
Fixed test mechanism 14 and sliding testing agency 15 are in place；
Open-circuit voltage, AC internal Resistance test are first carried out, then carries out DC internal resistance test, finally carries out insulation impedance test,
Each test between be spaced the several seconds, after the completion of test fixed test mechanism 14 and sliding testing agency 15 playback, test data by
MES system shows and is judged and handled, if test data is qualified, battery module continues to circulate, if test data
Unqualified, MES system carries out alarm battery module and waits subsequent processing；The test of the open-circuit voltage and AC internal Resistance is
It is attracted by relay K11, relay K12, other relays disconnect to complete；The test of the DC internal resistance be by after
Electric appliance K21, relay K22 are attracted, other relays disconnect to complete；The insulation impedance test needs to test twice, the
Be once by relay K31, relay K32 be attracted, other relays disconnect to complete, be for the second time by relay K33,
Relay K34 is attracted, other relays disconnect to complete.
Specifically, in Fig. 1, battery module is pushed on pan feeding track 1 with module assembling jig 6 in the present embodiment,
Battery module assembling jig is moved to module detection platform by double-speed chain conveyer belt 2, passes through code reader 3, reading code in block motion
3 read module side bar code of device simultaneously inputs in MES system.
In Fig. 2, after battery module fixture is moved to limit point, stop positioning mechanism 9 movement stop fixture along track after
Continuous movement, lifting body 8 act, module assembling jig 6 are separated with double-speed chain transmission belt 2, and subsequent belt fine adjustment mechanism 9 is dynamic
Make, battery module position is finely adjusted section.
In Fig. 3,11 display module bar code of MES data display screen, model parameter and battery voltage internal resistance tester 4 and electricity
The operating status of pool insulation impedance instrument.According to module bar code and type information, according to being previously set in human-computer interaction interface 1
Parameter, determine testing agency and the position that probe need to move.Fixed test mechanism 13 and sliding testing agency 14 start to work.
In Fig. 4, servo slide table 22 is moved to the detection position that program requires for testing agency 14 is slided, micro- by transplanting
Regulating the qi flowing in the channels cylinder 23, transplanting coarse adjustment cylinder 24 act, voltage internal resistance detection probe 17 and module voltage end insulation impedance detection probe 19
On positioning to module stagnation pressure jumper 27.
Signal is given to all probe cylinders, voltage internal resistance detection probe push cylinder 16 acts, 2 voltage internal resistance probes
Under be pressed on the stagnation pressure jumper at module both ends, insulation impedance detection probe push cylinder 21 acts, fixed test mechanism and cunning
Module voltage end insulation impedance detection probe 19, module top banding insulation impedance probes 20, mould in dynamic testing agency
After the ejection of block lower strap insulation impedance probe 21, movement, after all probe relays of signal detection disconnect, it is ready for
Test.
In Fig. 5, relay K11, K12 relay is attracted, other relays are all in off-state, so that cell voltage
Internal resistance test device opens battery module by the voltage internal resistance detection probe in fixed test mechanism and sliding testing agency
Road voltage and AC internal Resistance are tested, and after last for several seconds, are completed, and data are shown in MES data and show on Folding-Screen 12, and relay is disconnected
It opens.
Subsequent relay K21, K22 are attracted, other relays are all in off-state, so that DC Electronic Loads pass through admittedly
The voltage internal resistance detection probe determining testing agency and sliding in testing agency carries out DC internal resistance test to battery module, continues ten
It after the remaining second, is completed, data are shown in MES data and show on Folding-Screen, and relay disconnects.
Finally carry out insulation impedance test.When test, needs to be distinguished according to the structural requirement of battery module, want respectively
Anode and ground and cathode and ground to battery module carry out Insulation test, and the direction that position exports electric current at two is different
Requirement, it is therefore desirable to separately test, it is specific: to carry out first group of test first, relay K31 and K32 are attracted, other relays
Device all disconnects, and visits so that battery insulation impedance instrument is detected by the module voltage end insulation impedance in fixed test mechanism 14
Needle 19, module top banding insulation impedance probes 20 and module lower part insulation impedance detection probe 21 are to battery module one end
It carries out first group of insulation impedance to test, after last for several seconds, be completed, data are shown in MES data and show on Folding-Screen 12, relay
It disconnects.Second group of test is carried out again, and relay K33 and K34 are attracted, other relays all disconnect, so that battery insulation impedance is surveyed
It tries instrument and passes through the module voltage end insulation impedance detection probe 19 in sliding testing agency 15, module top banding insulation impedance inspection
Probing needle 20 and module lower part insulation impedance detection probe 21 carry out second group of insulation impedance test to the battery module other end, hold
It after the continuous several seconds, is completed, data are shown in MES data and show on Folding-Screen 12, and relay disconnects.
According to first progress open-circuit voltage, AC internal Resistance test, then DC internal resistance test is carried out, finally carries out insulation impedance survey
After the sequence of examination has carried out the off-line test after assembly to battery module, all relays are disconnected, cylinder movement, all probes
Playback.If data qualifier, module circulates along blanking track, if defect of data, display screen and buzzer warning, and mould
Block waits subsequent processing.
It is discussed in detail although the contents of the present invention have passed through above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read above content, for of the invention
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (8)
1. a kind of alternating current-direct current internal resistance and insulation impedance detection system for battery module, the battery module includes that module is total
Press jumper, module upper metal bandage and module lower metal bandage, which is characterized in that the system includes fixed inspection
Survey mechanism and sliding testing agency, DC Electronic Loads, battery voltage internal resistance tester, battery insulation impedance instrument, first
Control unit, the second control unit, third control unit, PLC and MES system, in which:
Fixed test mechanism and sliding testing agency, DC Electronic Loads, battery voltage internal resistance tester, battery insulation impedance are surveyed
Examination instrument, first control unit, the second control unit, third control unit pass through PLC respectively and connect MES system；
The fixed test mechanism is identical with the configuration of both testing agencies is slided, and separately includes upper detection head and lower part
Detector；
Wherein, upper detection head includes: voltage internal resistance detection probe；Connection voltage internal resistance detection probe is simultaneously pushed away for being pushed
The first push cylinder being sent on the stagnation pressure jumper of battery module；Module voltage end insulation impedance detection probe；Link block
Voltage end insulation impedance detection probe simultaneously pushes gas for being pushed be pushed on the stagnation pressure jumper of battery module second
Cylinder；It is bridged for positioning voltage internal resistance detection probe and module voltage end insulation impedance detection probe to battery module stagnation pressure
The transplanting fine tuning cylinder and transplanting coarse adjustment cylinder of piece；
Wherein, lower part detector includes: the module top banding insulation resistance for pressing against on battery module upper metal bandage
Anti- detection probe；Module lower strap insulation impedance detection probe for pressing against on battery module lower metal bandage；
The battery voltage internal resistance tester is connected and fixed testing agency and sliding testing agency by first control unit
In voltage internal resistance detection probe, for battery module open-circuit voltage and AC internal Resistance test；
The DC Electronic Loads by the second control unit connect battery module, for the DC internal resistance to battery module into
Row test；
The battery insulation impedance instrument is connected and fixed in testing agency and sliding testing agency by third control unit
Module voltage end insulation impedance detection probe, module top banding insulation impedance probes and module lower strap insulation
Impedance probes, for carrying out insulation impedance test to battery module；
The first control unit includes relay K11 and relay K12；The two of the battery voltage internal resistance detector
End is connected and fixed testing agency by relay K11 and relay K12 respectively and slides the voltage internal resistance in testing agency
Detection probe；
Second control unit includes relay K21 and relay K22；Distinguish at the both ends of the DC Electronic Loads
Testing agency is determined by relay K21 and relay K22 connection and slides the voltage internal resistance detection probe in testing agency；
The third control unit includes relay K31, relay K32, relay K33, relay K34；The insulation
The first input end of impedance instrument is connected and fixed the detection of the module voltage end insulation impedance in testing agency by relay K31
Probe, the second input terminal slide the module voltage end insulation impedance detection probe in testing agency by relay K33 connection；
On the one hand the output end of the insulation impedance tester passes through relay K32 and is connected and fixed testing agency and sliding testing agency
On module top banding insulation impedance probes and module lower part insulation impedance detection probe, on the other hand also by after
Electric appliance K34 is connected and fixed testing agency and slides the module top banding insulation impedance probes and module in testing agency
Lower part insulation impedance detection probe.
2. being used for the alternating current-direct current internal resistance and insulation impedance detection system of battery module as described in claim 1, which is characterized in that
Also include:
Module detection platform；
Pan feeding track is arranged in module detection platform, by PLC connection MES system for planning the mobile road of battery module
Diameter；
The side of module detection platform is arranged in by PLC connection MES system in servo slide table；
Fixed metal support and removable metallic support, fixed test mechanism is arranged by fixed metal support to be detected in module
The corresponding position of platform, sliding testing agency connects servo slide table by removable metallic support, under the action of servo slide table
Sliding testing agency moves on the movement routine direction of pan feeding track, and removable metallic support passes through PLC connection MES system
System.
3. being used for the alternating current-direct current internal resistance and insulation impedance detection system of battery module as claimed in claim 2, which is characterized in that
Also include:
Module assembling jig, by PLC connection MES system, battery module is pushed into the pan feeding with module assembling jig
In track；
Double-speed chain conveyer belt is arranged in pan feeding track, by PLC connection MES system for matching with battery module assembling jig
Battery module is moved in module detection platform by conjunction.
4. being used for the alternating current-direct current internal resistance and insulation impedance detection system of battery module as claimed in claim 3, which is characterized in that
Also include:
The corresponding position of module detection platform is arranged in by PLC connection MES system in code reader, connects MES system, is used for
The side bar code on battery module is read in the moving process of battery module and is inputted in MES system.
5. being used for the alternating current-direct current internal resistance and insulation impedance detection system of battery module as claimed in claim 3, which is characterized in that
Also include:
Stop positioning mechanism, by PLC connection MES system, for after module assembling jig is moved to limit point movement with
Module assembling jig is stopped to continue to move to along pan feeding track；
Lifting body, by PLC connection MES system, for separating module assembling jig with double-speed chain conveyer belt；
Belt fine adjustment mechanism, by PLC connection MES system, for after module assembling jig is separated with double-speed chain conveyer belt
Section is finely adjusted to the position of battery module.
6. being used for the alternating current-direct current internal resistance and insulation impedance detection system of battery module as claimed in claim 4, it is characterised in that:
The MES system includes the module bar code, model parameter and battery voltage internal resistance tester for showing battery module
With the MES data display screen of the operating status of battery insulation impedance instrument.
7. being used for the alternating current-direct current internal resistance and insulation impedance detection system of battery module as claimed in claim 6, which is characterized in that
Also include:
Human-machine Control interface, by PLC connection MES system, for predetermined voltage internal resistance test device, DC Electronic Loads and
The device parameter of battery insulation impedance instrument.
8. a kind of method for detecting the alternating current-direct current internal resistance and insulation impedance of battery module, using as described in claim 1
System is realized, it is characterised in that:
Fixed test mechanism and sliding testing agency are in place；
Open-circuit voltage, AC internal Resistance test are first carried out, then carries out DC internal resistance test, finally carries out insulation impedance test, each
The several seconds is spaced between test, fixed test mechanism and the playback of sliding testing agency, test data are shown by MES system after the completion of test
Show and is judged and handled, if test data is qualified, battery module continues to circulate, if test data is unqualified, MES
System carries out alarm battery module and waits subsequent processing；
The test of the open-circuit voltage and AC internal Resistance is attracted by relay K11, relay K12, other relays
It disconnects to complete；
The test of the DC internal resistance is attracted by relay K21, relay K22, other relays disconnect to complete；
The described insulation impedance test needs to test twice, is attracted by relay K31, relay K32 for the first time, other after
Electric appliance disconnects to complete, and is to be attracted by relay K33, relay K34 for the second time, other relays disconnect to complete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811520489.XA CN109342965A (en) | 2018-12-12 | 2018-12-12 | Alternating current-direct current internal resistance and insulation impedance detection system and method for battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811520489.XA CN109342965A (en) | 2018-12-12 | 2018-12-12 | Alternating current-direct current internal resistance and insulation impedance detection system and method for battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109342965A true CN109342965A (en) | 2019-02-15 |
Family
ID=65304275
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811520489.XA Pending CN109342965A (en) | 2018-12-12 | 2018-12-12 | Alternating current-direct current internal resistance and insulation impedance detection system and method for battery module |
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| CN111346844A (en) * | 2020-03-10 | 2020-06-30 | 威马智慧出行科技（上海）有限公司 | Battery pack detection screening system and method |
| WO2023197845A1 (en) * | 2022-04-15 | 2023-10-19 | 宁德时代新能源科技股份有限公司 | Battery internal resistance measurement device and battery production system |
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Application publication date: 20190215 |