CN208140827U - A kind of tester for non-on-board charger test - Google Patents
A kind of tester for non-on-board charger test Download PDFInfo
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- CN208140827U CN208140827U CN201820688967.7U CN201820688967U CN208140827U CN 208140827 U CN208140827 U CN 208140827U CN 201820688967 U CN201820688967 U CN 201820688967U CN 208140827 U CN208140827 U CN 208140827U
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Abstract
The utility model relates to a kind of tester for non-on-board charger test, including test host, the gun platform being detachably connected with test host and resistive load；It tests and is equipped with DC bus, main control unit and battery analogue unit in host；One end of gun platform is used to connect the charging gun of charger, and the other end is connected by DC bus with resistive load；The output end of battery analogue unit can be connected to on-off DC bus and export the voltage detecting before DC voltage is charged for charger to DC bus when connecting；Main control unit is communicated to connect by gun platform and charger.It is simple, easy to use and can be carried out the test of a variety of test items to implement the utility model structure.
Description
Technical field
The utility model relates to charging technique field, more specifically to a kind of for non-on-board charger test
Tester.
Background technique
Carrying out debugging detection currently for DC charging motor is mainly measuring on-board mode.Measuring on-board mode is with electronic
Automobile carries out debugging detection to DC charging motor, and Alternating Current Power Supply can be converted to DC power transmission and moved to electric car by this mode
Power battery charges.
Specific process is, three-phase alternating current by DC charging motor inside AC-DC module be converted into direct current supply electricity to it is electronic
Automobile charges.During the charging process, electric car can independently request voltage and current according to automobile condition itself, and direct current fills
Motor can adjust voltage and current according to request dynamic to meet the needs of electric car.But in real steering vectors, although can expire
Certain test experiments of foot, but for increasingly stringent national examination criteria, measuring on-board mode limitation is excessive, mainly just like
Lower disadvantage：
1, test item is few, and measuring on-board mode can only carry out a limited number of test item to DC charging motor and test；
2, trial and error is at high cost, during the charging process, if DC charging motor own hardware or software existing defects are (as adjusted
Save overcurrent), permanent damage will be carried out to electric powered motor battery；
3, volume is big, overweight.Electric car volume is big, general 1.5 tons of weight or more, is unable to satisfy the debugging inspection of more occasions
Survey demand.
Utility model content
The technical problem to be solved by the present invention is in view of the above drawbacks of the prior art, provide a kind of for non-
The tester of Vehicular charger test.
Technical solution adopted by the utility model to solve its technical problems is：It constructs a kind of for non-on-board charger survey
The tester of examination.
It is described in the utility model it is a kind of for non-on-board charger test tester in, including test host, with
The gun platform and resistive load that the test host is detachably connected；
DC bus, main control unit and battery analogue unit are equipped in the test host；
One end of the gun platform is used to connect the charging gun of the charger, the other end by the DC bus with it is described
Resistive load is connected；
The output end of the battery analogue unit can be connected to on-off the DC bus and when connecting to described straight
Stream bus exports the voltage detecting before DC voltage is charged for the charger；
The main control unit is communicated to connect by the gun platform and the charger.
It preferably, further include three volometers in the test host, the volometer for obtaining respectively
The voltage of the DC bus-bar voltage and electric current, the BMS accessory power supply voltage of the charger and the battery analogue unit.
Preferably, the communication interface of the volometer is connected in parallel and passes through RS485 interface and the main control unit
It is connected.
Preferably, the test host is additionally provided with man-machine interaction unit, and the man-machine interaction unit connects the master control list
Member, for inputting corresponding operational order.
Preferably, the man-machine interaction unit includes touch screen, and the touch screen passes through RS232 interface and the master control list
Member is connected.
Preferably, the battery analogue unit includes transformer and rectification unit, for turning alternating current 220V input voltage
It is changed to the DC output voltage of 360v-380V.
Preferably, the input terminal of the battery analogue unit and output end are equipped with protective tube.
Preferably, the output end of the battery analogue unit is equipped with first contactor, the first contactor and a power supply
Switch connection, when the power switch is off-state, the first contactor is disconnected, the battery analogue unit with it is described
DC bus disconnects.
Preferably, second contactor is equipped between the gun platform and the resistive load；Described in the main control unit connection
Second contactor, for controlling the second contactor connection or cutting off to realize between the gun platform and the resistive load
Connection or shutdown.
Preferably, the test host is connect by the first quick plug and Aviation Connector with the gun platform；
The test host is connected by the second quick plug with the resistive load；
First, second quick plug is connect with the DC bus, is used for transmission the charging voltage of the charger；
The Aviation Connector is filled for communication connection and the volometer of the main control unit with the charger with described
The connection of the BMS accessory power supply of motor.
A kind of tester for non-on-board charger test for implementing the utility model, has the advantages that：Knot
Structure is simple, easy to use and can be carried out the test of a variety of test items.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：
Fig. 1 is a kind of circuit theory frame of one embodiment of tester for non-on-board charger test of the utility model
Figure；
Fig. 2 is a kind of circuit theory of another embodiment of tester for non-on-board charger test of the utility model
Figure；
Fig. 3 is a kind of structural schematic diagram of one embodiment of tester for non-on-board charger test of the utility model；
Fig. 4 is a kind of starting work flow diagram of the tester for non-on-board charger test of the utility model；
Fig. 5 is a kind of processing work flow diagram of the tester for non-on-board charger test of the utility model.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed
Illustrate specific embodiment of the present utility model.
As shown in Figure 1, in an a kind of embodiment of tester for non-on-board charger test of the utility model,
Including testing host 20, the gun platform 10 and resistive load 30 that are detachably connected with test host 20；It tests in host 20 and is equipped with directly
Flow bus 22, main control unit 21 and battery analogue unit 23；One end of gun platform 10 is used to connect the charging gun of charger, the other end
It is connected by DC bus 22 with resistive load 30；The output end of battery analogue unit 23 can be connected to DC bus to on-off
22 and connect when to DC bus 22 export DC voltage charged for charger before voltage detecting；Main control unit 21
It is communicated to connect by gun platform 10 and charger.Specifically, designing using split type structure, tester is designed to test host
20, three independent modules of gun platform 10 and resistive load 30 (case), when needing test charger, by three
A standalone module is attached by interface or cable, and composition tester completes the test to charger.Here, host 20 is tested
In be provided with DC bus 22, main control unit 21 and battery analogue unit 23, when test, the charging gun of charger connects rifle
Seat 10,10 connecting test host 20 of gun platform, gun platform 10 meets standard here：GB/T20234.It is to be understood that being charger
In voltage output circuit by gun platform 10 and test host 20 inside DC bus 22 be connected to resistive load 30, charger
Communication loop connect by gun platform 10 with the main control unit 21 tested in host 20, such main control unit 21 transmission control command
To charger, charger makes corresponding response, response message is sent to main control unit 21, main control unit 21 receives the response
Information can thus complete the test to charger.23 main function of battery analogue unit in test host 20 is to generate
DC voltage connects tester in charger for simulating the DC voltage of power accumulator output, enters charging formal
Before, the output end of battery analogue unit 23 is connected to DC bus 22, and the DC voltage, charger are exported on DC bus 22
Internal voltage detecting circuit can detect the DC voltage, and confirm whether the DC voltage meets the requirements, and be tied according to detection
Fruit determines whether charger enters charged state, charges to tester.When charger confirmation voltage is met the requirements and is opened
After beginning charges to tester, battery analogue unit 23 will be disconnected with DC bus 22.Charger output voltage will be by straight
Bus 22 is flowed to resistive load 30, and the output voltage of charger is consumed by resistive load 30.
When tester enters charged state, so that it may start the test of each test item, it is to be understood that, test
Just whether project is issued by main control unit 21 and is requested, communicated with charger, receive the response of charger, to judge charger
Often.Such as main control unit 21 sends and stops charging message or be electrically charged the messages of device fails to charger, Huo Zhezhu
Control unit 21 send adjust after charging voltage and current requirements, whether confirmation charger make corresponding response or its response
As a result the value set with main control unit 21 whether there is error, and whether existing error is in the range of normal error.Here
It can be tested by tester.
The intercommunication of charger and tester charges here according to requiring mutually to send state message between them
Communications protocol between machine and tester is to meet 27930 standard of GB-T, can be believed by the message of mutual transmission
Breath, to complete the test to charger unification of communication protocol.In addition, the state report mutually sent between charger and tester
Text, this message includes the voltage and current value of each measurement, if the voltage and current value that both charger and tester measure respectively
Have big difference, charger should report voltage or electric current to mismatch.In some test cases, the main control unit 21 of tester can be with
Voltage and current value in state message is modified, such as voltage or current value are arranged to differ greatly with charger measured value, is come true
Recognize whether charger makes a response to the mismatch of voltage and current, the test to charger is completed.It is to be understood that being to fill
It is in communication with each other between motor and tester by CAN, communication protocol uses GB/T27930 standard.
Further, testing further includes three volometers 27 in host 20, and volometer 27 for obtaining respectively
23 voltage of 22 voltage and current of DC bus, the BMS accessory power supply voltage of charger and battery analogue unit.Specifically, can be with
It is whether normal to detect the voltage on DC bus 22 by connecting the current voltmeter of DC bus 22, such as DC bus
22 voltage reversals (sometimes charging station maintenance personnel changes charging gun, and it is reversed that carelessness will lead to charging gun positive and negative anodes circuit), such as
Fruit continues to walk charging flow, will lead to equipment burnout.It is examined by the volometer 27 of the BMS accessory power supply of connection charger
Whether the BMS accessory power supply voltage for surveying charger is normal.BMS accessory power supply voltage (is supplied to mainboard, contactor inside electric car
Electricity) national standard is 12v ± 5%, and if BMS accessory power supply electric voltage exception, it will lead to mainboard, contactor inside electric car
Etc. device operation irregularity.Current voltmeter by connecting battery analogue unit 23 detects the output electricity of battery analogue unit 23
Pressure, to confirm whether battery analogue unit 23 is normal.When charger voltage output is problematic, tester will do it alarm, mention
Showing commissioning staff's charger, there are failures, should overhaul immediately.
Further, the communication interface of volometer 27 is connected in parallel and passes through RS485 interface and 21 phase of main control unit
Connection.Different volometers 27 is managed simultaneously by the parallel connection of RS485 interface, it is convenient and efficient.
Further, test host 20 is additionally provided with man-machine interaction unit, and man-machine interaction unit connection main control unit 21 is used for
Input corresponding operational order.Specifically, behaviour corresponding with the various test items of test machine can be inputted by man-machine interaction unit
It instructs, after main control unit 21 receives the operational order, performs corresponding processing, send corresponding control command to charger,
To realize the corresponding test of charger.Here it is further appreciated that storage unit is equipped in main control unit 21, for storing various surveys
Example information on probation, such as stop charging message or failure message, the choosing of test item can be carried out by man-machine interaction unit
It selects, main control unit 21 recalls the message and carries out being sent to charger.
Further, man-machine interaction unit includes touch screen 28, and touch screen 28 passes through RS232 interface and 21 phase of main control unit
Connection.Specifically, carrying out touch operation by touch screen 28, and the display of charger test result is carried out by touch screen 28,
It is convenient and efficient.
Further, battery analogue unit 23 includes transformer and rectification unit, for turning alternating current 220V input voltage
It is changed to the DC output voltage of 360v-380V.Specifically, battery analogue unit 23 by exchange 220v power, by transformer with
And rectification circuit, generate 360v-380v DC voltage.Herein it is further appreciated that the alternating current 220V powers while by test
Power module in host 20 gives test 20 internal circuit of host power supply.
Further, the input terminal of battery analogue unit 23 and output end are equipped with protective tube 24,25.Specifically, passing through
The protective tube 24,25 of 23 input terminal of battery analogue unit and output end is set, the safety of tester is protected.
Further, the output end of battery analogue unit 23 is equipped with first contactor R_A, the electricity of first contactor R_A and one
Source switch 26 connects, and when power switch 26 is off-state, first contactor R_A is disconnected, battery analogue unit 23 and direct current
Bus 22 disconnects.Specifically, being equipped with a first contactor R_A in test host 20, first contactor R_A is arranged in battery
The output end of analogue unit 23, battery analogue unit 23 are connected by first contactor R_A with DC bus 22, this first connects
Tentaculum R_A is connected with main control unit 21, controls being opened or closed for first contactor R_A by main control unit 21.Such as front institute
It states, when being connected to charger in tester, on startup, main control unit 21 controls first contactor R_A closure to tester, in this way
Battery analogue unit 23 can be connected to DC bus 22, realize the Booting sequence of charger.When charger starts and is filled
When electric, main control unit 21 controls first contactor R_A and disconnects, and thereby realizes battery analogue unit 23 and DC bus 22
Disconnection.Here by the power switch 26 for the first contactor R_A being arranged in test host 20, first contactor is controlled
The disconnection to first contactor R_A is realized in the power supply of R_A.Here power switch 26 is the ship type on setting test host 20
Switch, by the power switch 26, can complete not connecing test to the battery of charger.That is the output charging when charger starts
Before voltage, ship type switch is dialled and sets OFF state, after controlling first contactor R_A disconnection by the power switch 26, battery
Analogue unit 23 will be disconnected with DC bus 22, and charger can't detect the DC voltage of the battery analogue unit 23 output,
Whether can be coincide according to the practical response made of charger and its scheduled response at this time, to judge whether charger is normal.
Test is not connect by the battery that this method can complete charger.And in normal charging process, ship type switch will be dialled
ON state is set, battery analogue unit 23 is enable to be linked on bus as needed.
Further, second contactor R_B is equipped between gun platform 10 and resistive load 30；The connection of main control unit 21 second connects
Tentaculum R_B, for controlling second contactor R_B connection or cutting off to realize connection or the pass between gun platform 10 and resistive load 30
It is disconnected.Specifically, be equipped with second contactor R_B in test host 20, second contactor R_B setting is in gun platform 10 and resistive negative
Carry 30 between, that is, be arranged in test host 20 DC bus 22 on, charger starting when, main control unit 21 control this second
Contactor R_B is disconnected, and when charger start completion and when being charged, main control unit 21 controls second contactor R_B closure,
The charging voltage of charger will be delivered to resistive load 30 in this way.Second contactor R_B is controlled here by main control unit 21,
Off-state can be set by second contactor R_B, that is, disconnects the output and resistance of charger in the charging process of charger
Property load 30 connection, the output of this when of charger disconnects, and electric energy cannot transmit, and charger is practical makes for this when of observation
Response and its scheduled response whether coincide to judge whether charger normal, it is electromechanical to complete charging by this method
Test can be transmitted.
In embodiment shown in Fig. 2, external communication electricity L, N, (i.e. 220V exchange input) (is equivalent to battery by fuse
The protective tube 24 of 23 input terminal of analogue unit) it is connect with transformer and rectification circuit (that is, battery analogue unit 23 includes
Transformer and rectification circuit), then connected after fuse (protective tube 25 for being equivalent to 23 output end of battery analogue unit)
DC bus.Battery voltage measuring unit (i.e. current voltmeter 27) is connected on the output end of rectification circuit to be used to test rectification
The voltage of circuit output end, it is understood that for the voltage of measurement 23 output end of battery analogue unit.After rectification circuit output
Voltage accesses DC bus by contactor KM1 (that is, first contactor R_A), all there is DC voltage on DC bus
Test cell (the voltage measurement function of current voltmeter 27) is used to measure the voltage on DC bus.It is set on DC bus
There is DC bus output testing current unit (current measurement function of current voltmeter 27) to be used to measure the output of DC bus
Electric current.It is noted here that DC bus output voltage test cell and testing current unit can be that an equipment (can
It is interpreted as the current voltmeter 27 that there is voltage and current to measure).DC bus connects gun platform and resistive load case is (i.e. resistive negative
It carries 30), contactor KM2 (that is, second contactor R_B) is equipped between gun platform and resistive load case.Herein, 220V
Exchange, which inputs while accessing power panel (being equivalent to the power module inside test host), gives test host internal circuit power supply.
Further, in embodiment as shown in Figure 3, test host 20 passes through the first quick plug 201 and Aviation Connector
203 connect with gun platform 10；It tests host 20 and is connected by the second quick plug 202 with resistive load 30；First, second quickly inserts
First 202 connect with DC bus 22, are used for transmission the charging voltage of charger；Aviation Connector 203 is used for main control unit 21 and fills
The connection of the BMS accessory power supply of the communication connection of motor and volometer 27 and charger.Specifically, split-type design
Test host 20 connected with gun platform 10 and resistive load 30 by corresponding connector, test host 20 be equipped with for charger
Two quick plugs of charging voltage transmission, two quick plugs are separately positioned on 22 both ends of DC bus, one be used to
Gun platform 10 connects, and one is used to connect with resistive load 30.Here quick plug can use Ai Desheng plug 75A/2P,
It is additionally provided with Aviation Connector 203 on test host 20, by the Aviation Connector 203, the master control list in test host 20 may be implemented
The communication of member 21 and charger can also realize the voltage measurement to the BMS accessory power supply of charger by the Aviation Connector 203
Or monitoring.Here Aviation Connector model can use 6 core 5A/250V of Y16-6AH.
Referring to flow chart shown in Fig. 4, a kind of tester for non-on-board charger test of the utility model is opened
Dynamic process includes：
A1, tester is assembled, mainly connecting test host 20, gun platform 10 and resistive load 30.
A2, confirmation 23 input and output link of battery analogue unit are normal, and start the working power of test host 20, here
It can be appreciated that whether the protective tube 24,25 of confirmation 23 input terminal of battery analogue unit and output end is normal, output end
Whether the power switch 26 of first contactor is normal, when confirmation is normal condition, the working power of starting test host 20,
This when is actually to connect test host 20 with 220V Alternating Current Power Supply.
A3, the charging gun and gun platform 10 for connecting charger, and start charger and charge, charging gun is inserted into herein
After gun platform 10, start starting switch for charger, charger carries out charging flow, and charging flow here should include charger
Booting sequence before exporting charging voltage.
A4, charger is tested before charge, or charger is tested during the charging process, in charging
It is preceding that charger is tested, it can be understood as, it, can be single by shutdown battery simulation before charger exports charging voltage
The output of member 23 turns off first contactor R_A that is, by the power switch 26 of control first contactor R_A, battery is simulated single
Member 23 is disconnected with DC bus 22, and realization does not connect test to the battery of charger.
Charger is tested during the charging process it is to be understood that charger export charging voltage during,
Corresponding control instruction is sent to charger by main control unit 21, and charger makes corresponding response to control instruction, comes real
Now to the dependence test of charger, test item here includes charger to stopping charging message or failure message and electricity
Current voltage precision adjusting etc..
Referring to the flow chart of Fig. 5, at a kind of work of tester for non-on-board charger test of the utility model
Managing process includes：
Tester detects the DC bus 22 of charging pile (i.e. charger) before charging and whether BMS accessory power supply voltage closes
Method, when illegal, tester is alarmed by text and generating, and terminates charging flow.Next step behaviour is carried out when legal when
Make.
In next step operation, tester enters in charging, carries out message interaction with charging pile with will be formally into filling
In electricity, whole process meets standard GB/T18487.1 and GB/T27930.It can then be tested accordingly, test here
It may include changing the voltage and current requirements of tester to observe the accuracy of charging pile output voltage adjusting voltage and current, send out
It send stopping charging message, send failure message, cutting R_B contactor (i.e. second contactor) etc., be in each test
Whether observation charging pile makes corresponding response, when response meets expected require, the next item down test can be carried out, when all surveys
After the completion of trying item test, it can terminate to charge.In any one test process, charging pile, which is not responded or responded, is not
Expected response can determine that charging pile failure, should stop immediately charging flow and search problem.
It should be understood that above embodiments only express preferred embodiments of the present invention, describe more specific
With it is detailed, but it should not be understood as limiting the scope of the patent of the utility model；It should be pointed out that for this field
Those of ordinary skill for, without departing from the concept of the premise utility, can to above-mentioned technical characterstic carry out freely
Combination, various modifications and improvements can be made, and these are all within the protection scope of the present invention；Therefore, all practical with this
The equivalents and modification that novel scope of the claims is done, should belong to the covering scope of the utility model claims.
Claims (10)
1. a kind of tester for non-on-board charger test, which is characterized in that including testing host, with the test host
The gun platform and resistive load being detachably connected；
DC bus, main control unit and battery analogue unit are equipped in the test host；
One end of the gun platform is used to connect the charging gun of the charger, the other end by the DC bus with it is described resistive
Load is connected；
The output end of the battery analogue unit can be connected to on-off the DC bus and when connecting to the direct current mother
Line exports the voltage detecting before DC voltage is charged for the charger；
The main control unit is communicated to connect by the gun platform and the charger.
2. the tester according to claim 1 for non-on-board charger test, which is characterized in that the test host
It inside further include three volometers, the volometer is used to obtain the BMS of the DC bus, the charger respectively
Accessory power supply and the battery analogue unit voltage value.
3. the tester according to claim 2 for non-on-board charger test, which is characterized in that the voltage and current
The communication interface of table is connected in parallel and passes through RS485 interface to be connected with the main control unit.
4. the tester according to claim 2 for non-on-board charger test, which is characterized in that the test host
It is additionally provided with man-machine interaction unit, the man-machine interaction unit connects the main control unit, for inputting corresponding operational order.
5. the tester according to claim 4 for non-on-board charger test, which is characterized in that the human-computer interaction
Unit includes touch screen, and the touch screen is connected by RS232 interface with the main control unit.
6. the tester according to claim 2 for non-on-board charger test, which is characterized in that the battery simulation
Unit includes transformer and rectification unit, for alternating current 220V input voltage to be converted to the DC output voltage of 360v-380V.
7. the tester according to claim 6 for non-on-board charger test, which is characterized in that the battery simulation
The input terminal and output end of unit are equipped with protective tube.
8. the tester according to claim 7 for non-on-board charger test, which is characterized in that the battery simulation
The output end of unit is equipped with first contactor, and the first contactor is connect with a power switch, when the power switch is disconnected
When open state, the first contactor is disconnected, and the battery analogue unit and the DC bus disconnect.
9. the tester according to claim 8 for non-on-board charger test, which is characterized in that the gun platform and institute
It states and is equipped with second contactor between resistive load；The main control unit connects the second contactor, for controlling described second
Contactor connection is cut off to realize the connection or shutdown between the gun platform and the resistive load.
10. the tester according to claim 2-9 any one for non-on-board charger test, which is characterized in that
The test host is connect by the first quick plug and Aviation Connector with the gun platform；
The test host is connected by the second quick plug with the resistive load；
First, second quick plug is connect with the DC bus, is used for transmission the charging voltage of the charger；It is described
Communication connection and the volometer and the charger of the Aviation Connector for the main control unit and the charger
BMS accessory power supply connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820688967.7U CN208140827U (en) | 2018-05-09 | 2018-05-09 | A kind of tester for non-on-board charger test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820688967.7U CN208140827U (en) | 2018-05-09 | 2018-05-09 | A kind of tester for non-on-board charger test |
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| Publication Number | Publication Date |
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| CN208140827U true CN208140827U (en) | 2018-11-23 |
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| CN201820688967.7U Active CN208140827U (en) | 2018-05-09 | 2018-05-09 | A kind of tester for non-on-board charger test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112540253A (en) * | 2020-12-17 | 2021-03-23 | 联合汽车电子有限公司 | Automatic testing module, system and testing method of charger |
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2018
- 2018-05-09 CN CN201820688967.7U patent/CN208140827U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112540253A (en) * | 2020-12-17 | 2021-03-23 | 联合汽车电子有限公司 | Automatic testing module, system and testing method of charger |
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