CN208488514U - Electric automobile direct current interface connection state detector that charges - Google Patents
Electric automobile direct current interface connection state detector that charges Download PDFInfo
- Publication number
- CN208488514U CN208488514U CN201820829054.2U CN201820829054U CN208488514U CN 208488514 U CN208488514 U CN 208488514U CN 201820829054 U CN201820829054 U CN 201820829054U CN 208488514 U CN208488514 U CN 208488514U
- Authority
- CN
- China
- Prior art keywords
- test
- measured
- power supply
- vehicle
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 claims abstract description 185
- 238000004891 communication Methods 0.000 claims description 28
- 238000012790 confirmation Methods 0.000 claims description 18
- 239000003990 capacitor Substances 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 15
- 238000012795 verification Methods 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 18
- 238000001514 detection method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 238000007689 inspection Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000005284 basis set Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The application discloses a detector for the connection state of a direct-current charging interface of an electric automobile, which comprises a test socket connected with a charging gun to be tested; the test plug is connected with a direct current charging socket of the vehicle to be tested; and the test board is connected with the test socket and the test plug and is used for testing the connection state of the charging gun to be tested and each pin of the vehicle direct-current charging socket to be tested. The detector can detect the connection state of the charging interface under the condition that the charging gun and the direct-current charging socket of the electric automobile are intact and not broken, judge whether abnormal connection occurs or not, and can determine the reason of the fault when the abnormal connection occurs, thereby effectively ensuring the charging safety and reliability of the electric automobile and being beneficial to popularization and application of the electric automobile.
Description
Technical field
This application involves electric car charging technique field, in particular to a kind of direct-current charging interface of electric automobile connects shape
State detector.
Background technique
A few days ago, the departments such as National Development and Reform Committee, National Energy Board, Ministry of Industry and Information combine print and distribute " electric car charging basis set
Apply develop guide (2015-2020) " and the General Office of the State Council print and distribute " about accelerate electric car charging infrastructure construction
Instruction " propose " 13 " during, the target of China's charging infrastructure development is: building up concentration to the year two thousand twenty and fills
Electrical changing station 1.2 ten thousand, disperse charging pile 4,800,000, meets the charge requirement of national 5,000,000 electric cars.National quality inspection is total
The departments such as office, National Standards Commission, the Department of Science and Technology have further issued electric vehicle charge interface and communication protocol of new revision etc. 5 again
Item national standard, and formally executed on January 1st, 2016.The promotion and implementation of new national standard, by effective compatibility for solving charging pile
And safety issue, promote the simultaneously match of electric car and charging pile to develop.
Country encourages and normal development electric car industry obtains the key technology of electric car industry especially electric car
To being rapidly developed, but even lack the technical requirements and technology detection architecture of complete set.As electric car fills
Electric facility is built and is applied on a large scale, and the charging interface connectivity problem of electric car conduction charging connecting device becomes increasingly conspicuous,
Major embodiment are as follows: need to carry out charging pile basic connecting test when checking and accepting after the completion of electrically-charging equipment construction；Electric car day
The problem of in normal charging process, charging connection is abnormal if occurring, and can not clearly be specifically charging pile side or electric car side
Problem.And the connected sets of electric vehicle charge interface and charging communication reliability are related to the safety, steady of charging process
It is qualitative.It therefore, is very necessary to the research of the test of the connection status of direct-current charging interface.
Therefore, a kind of direct-current charging interface of electric automobile testing scheme how is provided, it is ensured that the safety of electric car charging
Property is those skilled in the art's technical problem urgently to be resolved.
Utility model content
The purpose of the application is to provide a kind of direct-current charging interface of electric automobile connection status detector, which can
Charging gun and electric car DC charging socket is intact do not dismantle in the case where carry out the detection of charging interface connection status, judgement
Whether there is connection exception, and clear abnormal cause when exception occurs can be connected having, effectively ensures that electric car fills
The safety and reliability of electricity, is conducive to the popularization and application of electric car.
In order to solve the above technical problems, this application provides a kind of detections of direct-current charging interface of electric automobile connection status
Instrument, comprising:
Connect the test jack of charging gun to be measured；
Connect the test plug of vehicle DC charging socket to be measured；
It is connected with the test jack and the test plug, tests the charging gun to be measured and the vehicle to be measured is straight
The test board of the connection status of each pin of current charge socket.
Optionally, the test board includes:
Test the analog charge rifle circuit of the connection status of each pin of the vehicle DC charging socket to be measured；
Test the simulating vehicle DC charging socket circuit of the connection status of each pin of the charging gun to be measured；
Switch test mode, controls the analog charge rifle circuit and the simulating vehicle DC charging socket circuit is successive
It is attached the mode switch of state verification respectively.
Optionally, the analog charge rifle circuit includes:
Test the first test branch of the connection status of the positive and negative pin of DC power supply of the vehicle DC charging socket to be measured
Road；
Test the second test branch of the connection status of the protective grounding pin of the vehicle DC charging socket to be measured；
Test the imitating charger communication port of the connection status of the communications pins of the vehicle DC charging socket to be measured；
Test the first control connection pin of the vehicle DC charging socket to be measured and the company of the second control connection pin
Connect the third test branch of state；
Test the 4th test branch of the connection status of the positive and negative pin of accessory power supply of the vehicle DC charging socket to be measured
Road.
Optionally, the first test branch includes:
Capacitor, first diode, the second diode and the first single-pole double-throw switch (SPDT)；Wherein, one end of the capacitor with
The negative pin of DC power supply of the vehicle DC charging socket to be measured is connected, and the other end of the capacitor is respectively with the described 1st
The cathode of the anode of pole pipe and second diode is connected；The non-moving end of first single-pole double-throw switch (SPDT) and described to measuring car
The positive pin of DC power supply of DC charging socket is connected, the movable end of first single-pole double-throw switch (SPDT) it is selectable with it is described
The anode of the cathode of first diode or second diode is connected.
Optionally, the second test branch includes:
First power supply, first resistor, the first ammeter, the second single-pole double-throw switch (SPDT)；Wherein, the cathode of first power supply
With vehicle body it is connected, the anode of first power supply is connected with one end of the first resistor, the other end of the first resistor
It is connected with one end of first ammeter, the non-moving end of second single-pole double-throw switch (SPDT) and the vehicle DC to be measured charge
The protective grounding pin of socket is connected, and the movable end of second single-pole double-throw switch (SPDT) is selectable with first ammeter
The other end or equipment it is connected.
Optionally, the third test branch includes:
Second source, second resistance, 3rd resistor and the 4th resistance；Wherein, the cathode of the second source with it is described
One end of 3rd resistor and one end of the 4th resistance are grounded after being connected, anode and the second resistance of the second source
One end be connected, the other end of the second resistance be connected with the other end of the 3rd resistor afterwards and the vehicle DC to be measured
First control connection pin of charging socket is connected, the other end of the 4th resistance and the vehicle DC charging socket to be measured
Second control connection pin be connected.
Optionally, the 4th test branch includes:
Third power supply, the 4th power supply, the 5th power supply, the 5th resistance and double-point double-throw switch；Wherein, the third power supply
Anode be connected with one end of the 5th resistance, the cathode of the 4th power supply is connected with the anode of the 5th power supply to be followed by
Ground, the non-moving end of the double-point double-throw switch are connected with the positive and negative pin of accessory power supply of the vehicle DC charging socket to be measured,
The movable end of the double-point double-throw switch is selectable with the other end of the 5th resistance and the cathode phase of the third power supply
Even or with the cathode of the anode of the 4th power supply and the 5th power supply it is connected.
Optionally, the simulating vehicle DC charging socket circuit includes:
Test the first test interface of the connection status of the positive and negative pin of DC power supply of the charging gun to be measured；
Test the 5th test branch of the connection status of the protective grounding pin of the charging gun to be measured；
Test the simulated battery communication port of the connection status of the communications pins of the charging gun to be measured；
Test the connection of the first control connection confirmation pin and the second control connection confirmation pin of the charging gun to be measured
6th test branch of state；
Test the second test interface of the connection status of the positive and negative pin of the accessory power supply of the charging gun to be measured.
Optionally, the 5th test branch includes:
6th power supply, the 6th resistance, the second ammeter and third single-pole double-throw switch (SPDT)；Wherein, the 6th power supply is negative
Pole with connecing equipment, the 6th power supply anode be connected with one end of second ammeter, second ammeter it is another
End is connected with one end of the 6th resistance, the protection of the non-moving end of the third single-pole double-throw switch (SPDT) and the charging gun to be measured
Grounding pin is connected, the selectable other end or vehicle body with the 6th resistance of the movable end of the third single-pole double-throw switch (SPDT)
Ground is connected.
Optionally, the 6th test branch includes:
7th resistance, the 8th resistance and the 7th power supply；Wherein, one end of the 7th resistance and the charging gun to be measured
First control connection confirmation pin be connected, the other end of the 7th resistance is connected with the vehicle body, the 8th resistance
The second control connection confirmation pin of one end and the charging gun to be measured be connected, the other end of the 8th resistance and described the
The anode of seven power supplys is connected, and the other end of the 7th power supply is connected with the vehicle body.
Optionally, the mode switch includes:
Control the first relay group that the simulating vehicle DC charging socket circuit connect on-off with the test jack；
Control the second relay group that the analog charge rifle circuit connect on-off with the test plug；
Control the logic controller that switching circuit carries out test pattern switching.
Direct-current charging interface of electric automobile connection status detector provided herein includes: connection charging gun to be measured
Test jack；Connect the test plug of vehicle DC charging socket to be measured；It is homogeneous with the test jack and the test plug
Even, the test board of the connection status of each pin of the charging gun to be measured and the vehicle DC charging socket to be measured is tested.
As it can be seen that direct-current charging interface of electric automobile connection status detector provided herein, only needs respectively by the inspection
The test jack surveyed on instrument is connected with charging gun to be measured, after test plug is connected with vehicle DC charging socket to be measured, passes through
Test board tests the connection status of each pin of charging gun or vehicle DC charging socket, to determine whether there is connection different
Often, and can be when connection exception occur, the concrete reason being clearly abnormal clearly is specially the pin that electric car is surveyed
Connecting fault or the pin connecting fault of charging gun side can effectively ensure the safety and reliability of electric car charging.
And when being tested using the detector, without dismantling electric car DC charging socket and charging gun, to reduce inspection
Workload is surveyed, the popularization and application of electric car are conducive to.
Detailed description of the invention
It in order to more clearly explain the technical solutions in the embodiments of the present application, below will be to institute in the prior art and embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the application
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the schematic diagram of direct-current charging interface of electric automobile connection status detector provided by the embodiment of the present application；
Fig. 2 is the schematic diagram of analog charge rifle circuit provided by the embodiment of the present application；
Fig. 3 is the schematic diagram of simulating vehicle DC charging socket circuit provided by the embodiment of the present application.
Specific embodiment
The core of the application is to provide a kind of direct-current charging interface of electric automobile connection status detector, which can
Charging gun and electric car DC charging socket is intact do not dismantle in the case where carry out the detection of charging interface connection status, judgement
Whether there is connection exception, and clear abnormal cause when exception occurs can be connected having, effectively ensures that electric car fills
The safety and reliability of electricity, is conducive to the popularization and application of electric car.
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
Referring to FIG. 1, Fig. 1 is direct-current charging interface of electric automobile connection status detector provided by the embodiment of the present application
Schematic diagram；With reference to Fig. 1 it is found that the detector includes: test jack 101, test plug 102 and test board 103；
Test jack 101 is responsible for being connected with charging gun to be measured, fills to the vehicle DC of outer pin and production application
The pin of electrical socket is identical.Test plug 102 with vehicle DC charging socket to be measured for being connected, to outer pin and practical life
The pin for producing the charging gun of application is identical.
When test jack 101 is connected with charging gun to be measured, test plug 102 is connected with vehicle DC charging socket to be measured
Afterwards, the test board 103 being connected with test jack 101 and test plug 102 can be to each pin of charging gun to be measured
The connection status of each pin of connection status and vehicle DC charging socket to be measured is tested.
Optionally, test board 103 may include: the connection status for testing each pin of vehicle DC charging socket to be measured
Analog charge rifle circuit；Test the simulating vehicle DC charging socket circuit of the connection status of each pin of charging gun to be measured；It cuts
Test pattern is changed, to be successively attached test to each pin of charging gun to be measured and vehicle DC charging socket to be measured respectively
Mode switch.
Specifically, the test circuit inside test board 103 includes analog charge rifle circuit and simulating vehicle in the present embodiment
DC charging socket circuit then can treat measuring car DC charging socket and charging gun to be measured by foregoing circuit respectively
Each pin tested.The company for treating each pin of measuring car DC charging socket is realized using analog charge rifle circuit
State verification is connect, and then judges whether the internal circuit for connecting each pin of the vehicle DC charging socket to be measured is normal；It utilizes
Simulating vehicle DC charging socket circuit, which is realized, tests the connection status of each pin of charging gun to be measured, and then judges that connection should
Whether the internal circuit of each pin of charging gun to be measured is normal.In addition, reducing cost, above-mentioned two test to simplify circuit layout
Circuit is provided with shared electronic device, to avoid above-mentioned two test circuit while being tested and influencing each other causes to survey
Examination inaccuracy, therefore, test board 103 is additionally provided with mode switch, which is made above-mentioned by switch test mode
Two test circuits successively work respectively, i.e., do not work at the same time, and insert to charge respectively to charging gun to be measured and vehicle DC to be measured
Each pin of seat is attached test, influences each other without generating.
Optionally, analog charge rifle circuit may include: test vehicle DC charging socket to be measured DC power supply it is positive and negative
First test branch of the connection status of pin；Test the connection status of the protective grounding pin of vehicle DC charging socket to be measured
Second test branch；Test the imitating charger communication ends of the connection status of the communications pins of vehicle DC charging socket to be measured
Mouthful；Test the of the first control connection pin of vehicle DC charging socket to be measured and the connection status of the second control connection pin
Three test branches；Test the 4th test branch of the connection status of the positive and negative pin of accessory power supply of vehicle DC charging socket to be measured
Road.
Specifically, the pin of vehicle DC charging socket to be measured generally comprises the positive and negative pin of DC power supply, protective grounding is drawn
The positive and negative pin of foot, communications pins, accessory power supply, the first control connection pin and the second control connection pin.Thus it is possible to
Different test branches is arranged respectively to test all kinds of pins.Referring to FIG. 2, Fig. 2 is provided by the embodiment of the present application
The schematic diagram of analog charge rifle circuit.
According to Fig. 2: first test branch may include: capacitor C, first diode D1, the second diode D2 and
First single-pole double-throw switch (SPDT) S1；Wherein, the negative pin phase of DC power supply of one end of capacitor C and vehicle DC charging socket to be measured
Even, the other end of capacitor C is connected with the cathode of the anode of first diode D1 and the second diode D2 respectively；First hilted broadsword is double
Throw switch S1Non-moving end be connected with the positive pin of DC power supply of vehicle DC charging socket to be measured, the first single-pole double-throw switch (SPDT) S1
The selectable anode with the cathode of first diode D1 or the second diode D2 of movable end be connected.
Based on foregoing circuit structure, the test process of the first test branch are as follows: the first single-pole double-throw switch (SPDT) S1It is movable
End is connected with the anode of the second diode D2, i.e., after being connected with contact 2, charges for capacitor C, when the voltage of capacitor C is slightly above vehicle
When power battery voltage, when such as the voltage of capacitor C being 450V, by the first single-pole double-throw switch (SPDT) S1Movable end and the one or two
The cathode of pole pipe D1 is connected, i.e., is connected with contact 1.At this point, the first switch K5 of vehicle side and second switch K6 is closed, if to
The positive and negative pin connection of the DC power supply of measuring car DC charging socket, then first diode D1 forward conduction, capacitor C are put at this time
Electricity, capacitor C voltage reduce and are finally maintained at the cell voltage of vehicle side.To by the voltage feelings for analyzing the both ends capacitor C
Condition can judge the connection status of the positive and negative pin of DC power supply of vehicle DC charging socket to be measured.
Second test branch may include: the first power supply U1, first resistor R1, the first ammeter A1 and the second hilted broadsword it is double
Throw switch S2；Wherein, the first power supply U1Cathode with vehicle body be connected, the first power supply U1Anode with first resistor R1One end
It is connected, first resistor R1The other end be connected with one end of the first ammeter A1, the second single-pole double-throw switch (SPDT) S2Non-moving end with to
The protective grounding pin of measuring car DC charging socket is connected, the second single-pole double-throw switch (SPDT) S2Movable end it is selectable with first
The other end of ammeter A1 or equipment it is connected.
Based on foregoing circuit structure, the test process of the second test branch are as follows: the second single-pole double-throw switch (SPDT) S2It is movable
End is connected with the other end of the first ammeter A1, i.e., after being connected with contact 4, reads the registration of the first ammeter A1, if the first electricity
The registration of flow table A1 and the first power supply U1With first resistor R1The numerical value being calculated by Ohm's law is unanimous on the whole, for example, working as
First power supply U1For 5V, first resistor R1When for 5 Ω, if the registration of the first ammeter A1 is 1A, or when differing less with 1A,
The then protective grounding pin connection of vehicle DC charging socket to be measured.If the registration of the first ammeter A1 is zero, vehicle to be measured
The protective grounding pin of DC charging socket is not connected to.
It may include: second source U that third, which tests branch,2, second resistance R2, 3rd resistor R3And the 4th resistance R4；The
Two power supply U2Cathode and 3rd resistor R3One end and the 4th resistance R4One end be connected after be grounded, second source U2Anode
With second resistance R2One end be connected, second resistance R2The other end and 3rd resistor R3The other end be connected after with vehicle to be measured
First control connection pin of DC charging socket is connected, the 4th resistance R4The other end and vehicle DC charging socket to be measured
Second control connection pin is connected.
Based on foregoing circuit structure, the test process which tests branch can be with are as follows: test plug 101 and vehicle to be measured
DC charging socket connection after, detect vehicle DC charging socket to be measured first control pin voltage whether with preset value one
It causes, wherein the preset value is related to the voltage value of third test each constituent element of branch or resistance value, for example, working as second source
U2For 12V, second resistance R2, 3rd resistor R3And the 4th resistance R4When being 1000 Ω, which is 4V.If to measuring car
The voltage and 4V of first control pin of DC charging socket are unanimous on the whole, i.e., the two difference within the allowable range when, it is to be measured
First control pin connection of vehicle DC charging socket.On the contrary, not being connected to then.Detect the of vehicle DC charging socket to be measured
Whether the voltage-to-ground of two control connection pins is preset value, the voltage or resistance value of the preset value and vehicle side circuit element
It is related, i.e., with U' shown in Fig. 22、R'5Value it is related, work as U'2For 12V, R'5And the 4th resistance R4When being 1000 Ω, this is default
Value is 6V.If the voltage-to-ground of the second control connection pin of vehicle DC charging socket to be measured is 6V, or when close to 6V,
Second control connection pin connection of the vehicle DC charging socket to be measured；On the contrary, not being connected to then.
4th test branch includes: third power supply U3, the 4th power supply U4, the 5th power supply U5, the 5th resistance R5And double-pole is double
Throw switch S3；Third power supply U3Anode with the 5th resistance R5One end be connected, the 4th power supply U4Cathode and the 5th power supply U5's
Anode is grounded after being connected, double-point double-throw switch S3The accessory power supply of non-moving end and vehicle DC charging socket to be measured positive and negative draw
Foot is connected, double-point double-throw switch S3Movable end it is selectable with the 5th resistance R5The other end and third power supply U3Cathode phase
Even or with the 4th power supply U4Anode and the 5th power supply U5Cathode be connected.
Based on foregoing circuit structure, the test process of the 4th test branch are as follows: double-point double-throw switch S3Movable end with
5th resistance R5The other end and third power supply U3Cathode be connected after, i.e., after being connected with contact 1' and contact 2', if detect to
Voltage between the positive and negative pin of the accessory power supply of measuring car DC charging socket decreased significantly compared with floating voltage 5V, then to be measured
The positive and negative pin of the accessory power supply of vehicle DC charging socket is connected to.Conversely, not being connected to then.Wherein, when the 4th test branch is
When above structure, in the voltage-to-ground of the second control connection pin for testing above-mentioned vehicle DC charging socket to be measured, need by
Double-point double-throw switch S3With above-mentioned 5th resistance R5The other end and third power supply U3Cathode be connected, i.e., with contact 1 and contact 2
It is connected.
In addition, testing the connection of the communications pins of vehicle DC charging socket to be measured by imitating charger communication port
The process of state are as follows:, can be by the lateral analog charge of vehicle after test plug is connected with vehicle DC charging socket to be measured
Machine communication port sends message, or sends message from the imitating charger communication port to vehicle side, thus should by analysis
Imitating charger communication port success receives or sends message, judges that the communications pins of vehicle DC charging socket to be measured are
No connection.If message can be properly received or be sent, the communications pins of vehicle DC charging socket to be measured are connected to, on the contrary, then
It is not connected to.
Optionally, simulating vehicle DC charging socket circuit may include: test charging gun to be measured DC power supply it is positive and negative
First test interface of the connection status of pin；Test the 5th test of the connection status of the protective grounding pin of charging gun to be measured
Branch；Test the simulated battery communication port of the connection status of the communications pins of charging gun to be measured；Test the of charging gun to be measured
6th test branch of the connection status of one control connection confirmation pin and the second control connection confirmation pin；Test charging to be measured
Second test interface of the connection status of the positive and negative pin of the accessory power supply of rifle.
Specifically, simulating vehicle DC charging socket circuit is equally by different test branches respectively to charging gun to be measured
All kinds of pins tested.Referring to FIG. 3, Fig. 3 is simulating vehicle DC charging socket electricity provided by the embodiment of the present application
The schematic diagram on road.
Connection status in conjunction with Fig. 3, between the positive and negative pin of DC power supply for testing charging gun to be measured by the first test interface
Mode are as follows: after test jack is connected with charging gun to be measured, by the third of the pusher side that charges switch and the 4th switch, i.e., by Fig. 3
In K1 and K2 closure, pass through detection the first test interface voltage value, i.e., detection voltage U12Numerical value can judge to be measured fill
The connection status of the positive and negative pin of the DC power supply of electric rifle, if the voltage between the positive and negative pin of the DC power supply for measuring charging gun to be measured
Equal to charging voltage, then the positive and negative pin connection of the DC power supply of charging gun to be measured, if voltage is zero between two pins, is not connected to.
In such a way that simulated battery communication port tests the connection status of the communications pins of charging gun to be measured are as follows: work as test
After socket is connected with charging gun to be measured, if simulated battery communication ends can receive or issue message, the communication of charging gun to be measured
Pin successful connection.Certainly, can also be judged in communication performance test whether testing the connection of the communications pins.
In such a way that the second test interface tests the connection status of positive and negative pin of the accessory power supply of charging gun to be measured
Are as follows: after test jack is connected with charging gun to be measured, if measuring the electric over the ground of the positive and negative pin of the accessory power supply of charging gun to be measured
Within the allowable range, the allowed band is related to internal circuit parameter for pressure.For example, the voltage-to-ground of the positive pin of accessory power supply is
12V ± 0.6V, the voltage-to-ground of the negative pin of accessory power supply are-(12V ± 0.6V), then the positive and negative pin of the accessory power supply connects
It is logical.
Wherein, the 5th test branch may include: the 6th power supply U6, the 6th resistance R6, the second ammeter A2 and third list
Double-pole double throw switch S4；6th power supply U6Cathode with connecing equipment, the 6th power supply U6Anode and the second ammeter A2 one end phase
Even, the other end and the 6th resistance R of the second ammeter A26One end be connected, third single-pole double-throw switch (SPDT) S4Non-moving end with it is to be measured
The protective grounding pin of charging gun is connected, third single-pole double-throw switch (SPDT) S4Movable end it is selectable with the 6th resistance R6It is another
End or vehicle body be connected.
Based on foregoing circuit structure, the test process of the 5th test branch are as follows: by third single-pole double-throw switch (SPDT) S4With
Six resistance R6It is connected, i.e., is connected with contact 5, by reading the registration of the second ammeter A2, that is, can determine whether the guarantor of charging gun to be measured
Whether shield grounding pin is connected.If the registration of the second ammeter A2 and the 6th power supply U6With the 6th resistance R6Pass through Ohm's law meter
Obtained value is unanimous on the whole, then the protective grounding pin is connected to.On the contrary, if the registration of the second ammeter A2 is zero, the guarantor
Shield grounding pin is not connected to.
6th test branch may include: the 7th resistance R7, the 8th resistance R8And the 7th power supply U7；7th resistance R7's
One end is connected with the first control connection confirmation pin of charging gun to be measured, the 7th resistance R7The other end with vehicle body be connected,
Eight resistance R8The second control connection confirmation pin of one end and charging gun to be measured be connected, the 8th resistance R8The other end and the 7th
Power supply U7Anode be connected, the 7th power supply U7Cathode with vehicle body be connected.
Based on foregoing circuit structure, the test process of the 6th test branch are as follows: test jack is connect with charging gun to be measured
Afterwards, if the voltage-to-ground for measuring the second control connection confirmation pin of charging gun to be measured is setting value, for example, by the 7th power supply U7
For 12V, the 7th resistance R7With the 8th resistance R8When being 1000 Ω, if measuring the electric over the ground of the second control connection confirmation pin
Pressure is 6V, then the second control connection confirmation pin connection.By the third single-pole double-throw switch (SPDT) S of above-mentioned 5th test branch4With
Vehicle body it is connected, if the voltage for measuring the first control confirmation pin of charging gun to be measured is setting value, e.g., the 7th power supply U7For
12V, the 7th resistance R7With the 8th resistance R8It is 1000 Ω, and charging gun internal resistance to be measured, i.e. R in Fig. 33' be also
When 1000 Ω, if the voltage for measuring the first control confirmation pin is 4V or smaller with 4V difference, pin connection.If surveying
The voltage zero of the first control confirmation pin is obtained, then the pin is not connected to.
Optionally, mode switch module may include: that control simulating vehicle DC charging socket circuit and test jack connect
Connect the first disconnected relay group；Control analog charge rifle circuit connect the second relay group of on-off with test plug；Control
The logic controller of switching circuit progress test pattern switching.
Specifically, above-mentioned simulating vehicle DC charging socket circuit and analog charge rifle circuit are distinguished by two group relays
It is controlled, when needing to test the connection status of each pin of charging gun to be measured, then passes through the control simulation of the first relay group
Vehicle DC charging socket circuit is connect with test jack, and then is connected with charging gun to be measured, while the second relay group controls
Analog charge rifle circuit is disconnected with test plug, and then is disconnected with vehicle DC charging socket to be measured.Work as needs
When testing the connection status of each pin of vehicle DC charging socket to be measured, then operation contrary to the above is carried out.In addition, logic
Controller can control switching circuit when needing to carry out test pattern switching to realize the switching of test pattern.
Further, which is also provided with indicator light or alarm, in turn, when detecting that the connection of certain pin is abnormal
When, abnormal prompt can be attached in such a way that indicator light flashes or alarm issues the sound.
In conclusion direct-current charging interface of electric automobile connection status detector provided herein, only need to respectively by
Test jack on the detector is connected with charging gun to be measured, after test plug is connected with vehicle DC charging socket to be measured,
The connection status of each pin of charging gun or vehicle DC charging socket is tested, by test board to determine whether there is connection
Exception, and can be when connection exception occurs, the concrete reason being clearly abnormal clearly is specially drawing for electric car survey
Foot connecting fault or the pin connecting fault of charging gun side effectively ensure the safety and reliability of electric car charging.
And when being tested using the detector, without dismantling electric car DC charging socket and charging gun, to reduce inspection
Workload is surveyed, the popularization and application of electric car are conducive to.
Because situation is complicated, it can not enumerate and be illustrated, those skilled in the art should be able to be, it is realized that mention in the application
It combines actual conditions to may exist multiple examples under the basic principle of the embodiment of confession, is not paying enough creative works
Under, it should within the scope of application.
Each embodiment is described in a progressive manner in specification, the highlights of each of the examples are with other realities
The difference of example is applied, the same or similar parts in each embodiment may refer to each other.
Direct-current charging interface of electric automobile connection status detector provided herein is described in detail above.
Specific examples are used herein to illustrate the principle and implementation manner of the present application, and the explanation of above embodiments is only used
The present processes and its core concept are understood in help.It should be pointed out that for those skilled in the art,
Under the premise of not departing from the application principle, can also to the application, some improvement and modification can also be carried out, these improvement and modification
Fall into the protection scope of the claim of this application.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also other elements including being not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or equipment for including element.
Claims (11)
1. a kind of direct-current charging interface of electric automobile connection status detector characterized by comprising
Connect the test jack of charging gun to be measured；
Connect the test plug of vehicle DC charging socket to be measured；
It is connected with the test jack and the test plug, tests the charging gun to be measured and filled with the vehicle DC to be measured
The test board of the connection status of each pin of electrical socket.
2. detector according to claim 1, which is characterized in that the test board includes:
Test the analog charge rifle circuit of the connection status of each pin of the vehicle DC charging socket to be measured；
Test the simulating vehicle DC charging socket circuit of the connection status of each pin of the charging gun to be measured；
Switch test mode controls the analog charge rifle circuit and successively distinguishes with the simulating vehicle DC charging socket circuit
It is attached the mode switch of state verification.
3. detector according to claim 2, which is characterized in that the analog charge rifle circuit includes:
Test the first test branch of the connection status of the positive and negative pin of DC power supply of the vehicle DC charging socket to be measured；
Test the second test branch of the connection status of the protective grounding pin of the vehicle DC charging socket to be measured；
Test the imitating charger communication port of the connection status of the communications pins of the vehicle DC charging socket to be measured；
Test the first control connection pin of the vehicle DC charging socket to be measured and the connection shape of the second control connection pin
The third of state tests branch；
Test the 4th test branch of the connection status of the positive and negative pin of accessory power supply of the vehicle DC charging socket to be measured.
4. detector according to claim 3, which is characterized in that the first test branch includes: capacitor, the one or two pole
Pipe, the second diode and the first single-pole double-throw switch (SPDT)；Wherein, one end of the capacitor and the vehicle DC charging to be measured are inserted
Seat the negative pin of DC power supply be connected, the other end of the capacitor respectively with the anode of the first diode and the described 2nd 2
The cathode of pole pipe is connected；The direct current of the non-moving end of first single-pole double-throw switch (SPDT) and the vehicle DC charging socket to be measured
The positive pin in source is connected, the selectable cathode or described with the first diode of the movable end of first single-pole double-throw switch (SPDT)
The anode of second diode is connected.
5. detector according to claim 3, which is characterized in that the second test branch includes: the first power supply, first
Resistance, the first ammeter, the second single-pole double-throw switch (SPDT)；Wherein, the cathode of first power supply with vehicle body is connected, and described first
The anode of power supply is connected with one end of the first resistor, one end of the other end of the first resistor and first ammeter
It is connected, the protective grounding pin phase of the non-moving end of second single-pole double-throw switch (SPDT) and the vehicle DC charging socket to be measured
Even, the movable end of second single-pole double-throw switch (SPDT) is selectable to be connected with the other end of first ammeter or equipment.
6. detector according to claim 3, which is characterized in that the third tests branch and includes:
Second source, second resistance, 3rd resistor and the 4th resistance；Wherein, the cathode of the second source and the third
One end of resistance and one end of the 4th resistance are grounded after being connected, the anode of the second source and the one of the second resistance
End is connected, and the other end of the second resistance charges after being connected with the other end of the 3rd resistor with the vehicle DC to be measured
First control connection pin of socket is connected, and the of the other end of the 4th resistance and the vehicle DC charging socket to be measured
Two control connection pins are connected.
7. detector according to claim 3, which is characterized in that the described 4th, which tests branch, includes:
Third power supply, the 4th power supply, the 5th power supply, the 5th resistance and double-point double-throw switch；Wherein, the third power supply is being just
Pole is connected with one end of the 5th resistance, and the cathode of the 4th power supply is grounded after being connected with the anode of the 5th power supply,
The non-moving end of the double-point double-throw switch is connected with the positive and negative pin of accessory power supply of the vehicle DC charging socket to be measured, institute
The selectable cathode with the other end of the 5th resistance and the third power supply of movable end for stating double-point double-throw switch is connected
Or it is connected with the cathode of the anode of the 4th power supply and the 5th power supply.
8. detector according to claim 2, which is characterized in that the simulating vehicle DC charging socket circuit includes:
Test the first test interface of the connection status of the positive and negative pin of DC power supply of the charging gun to be measured；
Test the 5th test branch of the connection status of the protective grounding pin of the charging gun to be measured；
Test the simulated battery communication port of the connection status of the communications pins of the charging gun to be measured；
Test the first control connection confirmation pin of the charging gun to be measured and the connection status of the second control connection confirmation pin
The 6th test branch；
Test the second test interface of the connection status of the positive and negative pin of the accessory power supply of the charging gun to be measured.
9. detector according to claim 8, which is characterized in that the described 5th, which tests branch, includes:
6th power supply, the 6th resistance, the second ammeter and third single-pole double-throw switch (SPDT)；Wherein, the cathode of six power supply, which connects, sets
The anode on standby ground, the 6th power supply is connected with one end of second ammeter, the other end of second ammeter and institute
The one end for stating the 6th resistance is connected, and the non-moving end of the third single-pole double-throw switch (SPDT) and the protective grounding of the charging gun to be measured are drawn
Foot is connected, selectable with the other end of the 6th resistance or vehicle body the phase of the movable end of the third single-pole double-throw switch (SPDT)
Even.
10. detector according to claim 8, which is characterized in that the described 6th, which tests branch, includes:
7th resistance, the 8th resistance and the 7th power supply；Wherein, the of one end of the 7th resistance and the charging gun to be measured
One control connection confirmation pin be connected, the other end of the 7th resistance with vehicle body is connected, one end of the 8th resistance and
Second control connection confirmation pin of the charging gun to be measured is connected, the other end and the 7th power supply of the 8th resistance
Anode is connected, and the other end of the 7th power supply is connected with the vehicle body.
11. detector according to claim 2, which is characterized in that the mode switch includes:
Control the first relay group that the simulating vehicle DC charging socket circuit connect on-off with the test jack；
Control the second relay group that the analog charge rifle circuit connect on-off with the test plug；
Control the logic controller that switching circuit carries out test pattern switching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820829054.2U CN208488514U (en) | 2018-05-30 | 2018-05-30 | Electric automobile direct current interface connection state detector that charges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820829054.2U CN208488514U (en) | 2018-05-30 | 2018-05-30 | Electric automobile direct current interface connection state detector that charges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208488514U true CN208488514U (en) | 2019-02-12 |
Family
ID=65250733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820829054.2U Active CN208488514U (en) | 2018-05-30 | 2018-05-30 | Electric automobile direct current interface connection state detector that charges |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208488514U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108732456A (en) * | 2018-05-30 | 2018-11-02 | 南方电网科学研究院有限责任公司 | Electric automobile direct current interface connection state detector that charges |
| CN113866686A (en) * | 2021-08-19 | 2021-12-31 | 中车唐山机车车辆有限公司 | AC socket wiring fault detection device |
-
2018
- 2018-05-30 CN CN201820829054.2U patent/CN208488514U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108732456A (en) * | 2018-05-30 | 2018-11-02 | 南方电网科学研究院有限责任公司 | Electric automobile direct current interface connection state detector that charges |
| CN113866686A (en) * | 2021-08-19 | 2021-12-31 | 中车唐山机车车辆有限公司 | AC socket wiring fault detection device |
| CN113866686B (en) * | 2021-08-19 | 2024-01-12 | 中车唐山机车车辆有限公司 | Ac socket wiring fault detector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104569730B (en) | A kind of Cable Testing System applied to moonlet | |
| CN106226610B (en) | A kind of direct-current charging interface of electric automobile test macro and test method | |
| CN106019002B (en) | Verification test platform for battery management system and test method thereof | |
| CN105823957A (en) | Electric automobile DC charging interface connection state and communication performance test system | |
| CN108548968A (en) | The performance testing device and test method of battery management system | |
| CN107132484A (en) | A kind of integrated test system of battery system | |
| CN207263852U (en) | A kind of test system of electric automobile direct-current charging post | |
| CN108646105A (en) | Analog AC charging pile, Vehicular charger interact the equipment for realizing charging process test with BMS | |
| CN103760895B (en) | Automobile-mounted charger of new energy control device hardware-in―the-loop test method | |
| CN106405302B (en) | electric automobile fills electric pile detection device | |
| CN209728518U (en) | New energy integrated controller hardware is in ring test system | |
| CN208488514U (en) | Electric automobile direct current interface connection state detector that charges | |
| CN105759208A (en) | Function detection platform for battery management system for battery pack | |
| CN108445404A (en) | The performance test methods and device of battery management system | |
| CN206725673U (en) | A kind of off-board direct-current charging post detection means of electric automobile | |
| CN206848394U (en) | A kind of simulation test platform based on alternating-current charging pile | |
| CN108732456A (en) | Electric automobile direct current interface connection state detector that charges | |
| CN203616466U (en) | Comprehensive tester and test equipment of battery management system | |
| CN208872824U (en) | Charging pile simulator | |
| CN103760891B (en) | Hardware-in-loop testing device and method for automobile non-vehicle-mounted direct-current charging control device | |
| CN106569053B (en) | A kind of simulation system and method for pure electric automobile on-vehicle battery external characteristics | |
| CN206657072U (en) | Direct-current charging interface of electric automobile connection status test circuit | |
| CN103558579B (en) | The method that electric energy meter calibrating apparatus is carried out the calibrating of current loop trouble point | |
| CN102544408B (en) | Battery box and mobile phone charging and discharging testing system | |
| CN202471932U (en) | Simulation testing platform for comprehensive battery management system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200512 Address after: 510663 Building 3, 4, 5 and 3 of Building J1, 11 Kexiang Road, Science City, Luogang District, Guangzhou City, Guangdong Province Co-patentee after: CHINA SOUTHERN POWER GRID Co.,Ltd. Patentee after: China South Power Grid International Co.,Ltd. Address before: 510663 Building 3, 4, 5 and 3 of Building J1, 11 Kexiang Road, Science City, Luogang District, Guangzhou City, Guangdong Province Patentee before: China South Power Grid International Co.,Ltd. |