CN206975173U - A kind of New energy automobile motor driver circuit board automatic testing equipment - Google Patents
A kind of New energy automobile motor driver circuit board automatic testing equipment Download PDFInfo
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- CN206975173U CN206975173U CN201720763975.9U CN201720763975U CN206975173U CN 206975173 U CN206975173 U CN 206975173U CN 201720763975 U CN201720763975 U CN 201720763975U CN 206975173 U CN206975173 U CN 206975173U
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Abstract
The utility model discloses a kind of New energy automobile motor driver circuit board automatic testing equipment, including support and test system, test system has testing of electric motors, rotary transformer, D/A converter module, output signal conditioning module, input signal conditioning module, pwm signal buffer module, CAN signal buffer module, MCU and display screen, MCU output end and display screen, testing of electric motors, D/A converter module is electrically connected, rotary transformer is arranged on the output shaft of testing of electric motors, D/A converter module electrically connects with output signal conditioning module, input signal conditioning module electrically connects with MCU, pwm signal buffer module and CAN signal buffer module electrically connect with MCU output end respectively.Compared with prior art; it can be detected to the decoder of test circuit plate, voltage and current signal modulate circuit, IGBT drive circuit, fault secure circuit and CAN bus circuit; finally give the abnormality test of circuit board; using intelligence test; testing efficiency is high; accurate testing, and test operation is simply, conveniently.
Description
Technical field
Test device is the utility model is related to, is filled more specifically to a kind of test for new-energy automobile circuit board
Put.
Background technology
With the development of science and technology, in circuit board fabrication industry at this stage, the circuit board after the completion of production can
Quality testing is carried out, to ensure that circuit board is normal, qualified.Traditional circuit board detecting mode mainly uses manual inspection circuit
Plate, and only judge board quality by worker's working experience, so existing artificial detection has testing efficiency low, test
The defects of not accurate.
In view of this, the present inventor furthers investigate to above mentioned problem, is produced then in this case.
Utility model content
The purpose of this utility model is to provide a kind of testing efficiency height, the New energy automobile motor driver electricity of accurate testing
Road plate automatic testing equipment.
To reach above-mentioned purpose, solution of the present utility model is：
A kind of New energy automobile motor driver circuit board automatic testing equipment, including support and test system, on support
With the test platform lain against for circuit board to be tested, above-mentioned test system is arranged on support, above-mentioned test system tool
There are testing of electric motors, rotary transformer, D/A converter module, output signal conditioning module, input signal conditioning module, pwm signal
Buffer module, CAN signal buffer module, MCU and display screen, above-mentioned MCU output end and above-mentioned display screen, testing of electric motors, number
Mould modular converter is electrically connected, and above-mentioned rotary transformer is arranged on the output shaft of above-mentioned testing of electric motors, above-mentioned rotation transformation
The output end of device is electrically connected with the measurement of rotating speed interface electrically connected for the decoder of the rotary transformer with circuit board to be tested,
The output end of above-mentioned D/A converter module electrically connects with the input of above-mentioned output signal conditioning module, above-mentioned output signal conditioning
The output end of module is electrically connected with the telecommunications electrically connected with the input of the voltage and current signal modulate circuit of circuit board to be tested
Number test interface, the input of above-mentioned input signal conditioning module has and the voltage and current signal of circuit board to be tested conditioning electricity
The input signal interface of the output end electrical connection on road, the output end of above-mentioned input signal conditioning module and above-mentioned MCU input
Electrical connection, the input of above-mentioned pwm signal buffer module and the input of CAN signal buffer module are defeated with above-mentioned MCU respectively
Go out end electrical connection, the output end of above-mentioned pwm signal buffer module has to be electrically connected with the IGBT drive circuit of circuit board to be tested
Pwm signal test interface, the output end of above-mentioned CAN signal buffer module has the CAN bus circuit with circuit board to be tested
Output end electrical connection CAN signal test interface, above-mentioned MCU input has the rotation for being used for receiving circuit board to be tested
The decoded signal input interface of the decoded signal of the decoder of transformer, the fault secure circuit for receiving circuit board to be tested
The driving letter of the fault-signal input interface of output signal, IGBT drive circuit output signal for receiving circuit board to be tested
The CAN signal input interface of number input interface and the CAN signal for receiving circuit board output to be tested.
Above-mentioned support is located at the conveyer belt and control defeated for being provided with by above-mentioned test platform and treating that test circuit plate conveyed
The transport driving of band is sent, and is provided with and the circuit board to be tested on conveyer belt can be picked up and relayed to survey on above-mentioned support
Try the mechanical tong on platform and the tong drive mechanism of control machinery tong action, above-mentioned MCU output end and above-mentioned conveying
The input of drive mechanism and the input of above-mentioned tong drive mechanism control connection respectively.
Above-mentioned support is located at the infrared distance measurement being provided with said conveyer belt for detecting circuit board to be tested on conveyer belt
Instrument, above-mentioned infrared range-measurement system are provided with two, and conveying direction interval of two infrared range-measurement systems along conveyer belt is distributed side by side, and two is above-mentioned
Input of the output end of infrared range-measurement system respectively with above-mentioned MCU electrically connects.
Above-mentioned test system has housing, and above-mentioned testing of electric motors, rotary transformer, D/A converter module, output signal are adjusted
Reason module, input signal conditioning module, MCU, pwm signal buffer module and CAN signal buffer module are mounted in housing, on
Housing is stated on the side of test platform, is offered on above-mentioned housing for measurement of rotating speed interface, electric signal test interface, defeated
Enter the test window that signaling interface, pwm signal test interface and CAN signal test interface expose respectively, above-mentioned display screen peace
On above-mentioned housing.
Above-mentioned testing of electric motors is stepper motor.
After said structure, a kind of New energy automobile motor driver circuit board of the present utility model tests dress automatically
Put, circuit board to be tested be placed on test platform, afterwards the measurement of rotating speed interface of test system, electric signal test interface,
Input signal interface, pwm signal test interface and CAN signal test interface pass through the rotation of wire and circuit board to be tested respectively
The decoder of transformer, the input of voltage and current signal modulate circuit, the output end of voltage and current signal modulate circuit, IGBT
Drive circuit, CAN bus circuit are electrically connected, and are completed test and are prepared, and start test system, and MCU controls testing of electric motors work,
Testing of electric motors drives rotary transformer rotation, decoding of the output signal of rotary transformer to the rotary transformer of circuit board to be tested
Device, MCU receive the decoded signal of the decoder of rotary transformer again, now MCU by the decoded signal of input with output driving
Treat that the signal of measured motor compares, so as to judge whether the decoding circuit of test circuit plate is abnormal；MCU passes through digital-to-analogue conversion
Voltage and current signal modulate circuit input voltage, electric current, the temperature letter of module, output signal conditioning module to circuit board to be tested
Number, voltage, electric current, the temperature signal of input input to MCU, MCU through input signal conditioning module again after circuit board to be tested
Voltage, electric current and temperature signal by obtaining judges test electricity compared with the voltage, electric current and temperature signal that export
Whether the voltage and current signal modulate circuit of road plate is abnormal, meanwhile, MCU steps up or gradually reduced the electricity of output during test
Pressure, electric current and temperature signal, until the fault secure circuit of test circuit plate makes action, now learn that fault secure circuit goes out
Voltage, electric current and the temperature value now acted, and shown by display screen, voltage, electric current and the temperature value that display screen is shown
Virtual voltage, electric current and the temperature value to be worked with the fault secure circuit of test circuit plate, which carries out verification, can judge test electricity
Whether the fault secure circuit of road plate is abnormal；MCU inputs pwm signal, test by pwm signal buffer module to test circuit plate
IGBT drive signals corresponding to the IGBT drive circuit output of circuit board, MCU is driven by analog-to-digital conversion sampling interface IGBT to be believed
Number, so as to obtain level and frequency, MCU is compared and can determine whether using the level and frequency of input and the pwm signal of output
Go out whether the IGBT drive circuit of test circuit plate is abnormal, and MCU is total to the CAN of test circuit plate by CAN signal buffer module
Line circuit sends CAN signal, and MCU receives the CAN signal that test circuit plate is sent and is compared the CAN signal sent and received again
To judge whether the CAN bus circuit of test circuit plate is normal.Compared with prior art, measurement of rotating speed interface, electric signal are passed through
Test interface, input signal interface, pwm signal test interface, CAN signal test interface, decoded signal input interface, failure letter
Number input interface, drive signal input interface and CAN signal input interface electrically connect with the corresponding interface of test circuit plate
Decoder, voltage and current signal modulate circuit, IGBT drive circuit, fault secure circuit and CAN to test circuit plate
Circuit is detected, and finally gives the abnormality test of circuit board, and using intelligence test, testing efficiency is high, accurate testing, and tests
Operation is simply, conveniently.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the schematic block circuit diagram of test system in the utility model.
Embodiment
In order to which the technical solution of the utility model is explained further, the utility model is entered below by specific embodiment
Row elaborates.
A kind of New energy automobile motor driver circuit board automatic testing equipment of the present utility model, as shown in Figure 1-2, bag
Support and test system are included, there is the test platform 1 lain against for circuit board to be tested on support, test system, which is arranged on, to be surveyed
Platform 1 is tried, test system has housing 2 and testing of electric motors 3 in housing 2, rotary transformer 4, D/A converter module
5th, output signal conditioning module 6, input signal conditioning module 7, pwm signal buffer module 8, CAN signal buffer module 9, MCU10
And display screen 11, housing 1 are arranged on the upper surface rear side of test platform 1, MCU10 output end and display screen 11, test electricity
Machine 3, D/A converter module 5 are electrically connected, and rotary transformer 4 is arranged on the output shaft of testing of electric motors 3, are tested for measuring
The rotary speed information of motor 3, testing of electric motors 3 are stepper motor, and the output end of rotary transformer 4 is electrically connected with measurement of rotating speed interface
41, this measurement of rotating speed interface 41 matching electricity corresponding with the input port of the decoder of the rotary transformer of circuit board 100 to be tested
Connection, the input socket of rotary transformer 4 and the decoder of circuit board 100 to be tested can be realized using this measurement of rotating speed interface 41
Direct electrical plug, the output end of D/A converter module 5 are electrically connected with the input of output signal conditioning module 6, and output signal is adjusted
The output end of reason module 6 is electrically connected with electric signal test interface 61, the electric signal test interface 61 and circuit board 100 to be tested
The corresponding matching electrical connection in input port of voltage and current signal modulate circuit, signal can be realized using this electric signal test interface 61
Export conditioning module and the direct electrical plug of input socket of the voltage and current signal modulate circuit of circuit board 100 to be tested.
The input of described input signal conditioning module 7 is electrically connected with an input signal interface 71, and this input signal connects
Mouth 71 matches with the output end of the voltage and current signal modulate circuit of circuit board 100 to be tested to be electrically connected, and utilizes this input to believe
Number interface 71 can realize output and the input signal conditioning module 7 of the voltage and current signal modulate circuit of circuit board 100 to be tested
The direct electrical plug of input, the output end of input signal conditioning module 7 electrically connects with MCU10 input, pwm signal buffering
The input of module 8 and the input of CAN signal buffer module 9 electrically connect with MCU10 output end respectively, pwm signal buffering
The output end of module 8 has pwm signal test interface 81, the IGBT of this pwm signal test interface 81 and circuit board 100 to be tested
The input of drive circuit matches electrical plug, and the output end of CAN signal buffer module 9 has CAN signal test interface 91,
The input of the CAN bus circuit of CAN signal test interface 91 and circuit board 100 to be tested matches electrical plug, and MCU10's is defeated
Enter to hold and there is decoded signal input interface, fault-signal input interface, drive signal input interface and CAN signal input interface,
The decoded signal input interface is used for the decoded signal for receiving the decoder of the rotary transformer of circuit board 100 to be tested, can be with
The corresponding electrical plug of output end of the decoder of the rotary transformer of circuit board 100 to be tested, the fault-signal input interface are used for
The output signal of the fault secure circuit of circuit board to be tested is received, the output end with the fault secure circuit of circuit board to be tested
Corresponding electrical plug, drive signal input interface are used for the output signal for receiving the IGBT drive circuit of circuit board to be tested, its energy
Electrical plug corresponding to the output end of IGBT drive circuit, CAN signal input interface are used to receive what circuit board 100 to be tested exported
CAN signal, it can electrical plug corresponding to the output end of the CAN bus circuit of circuit board to be tested.CAN signal input interface.
Offered on housing 2 for measurement of rotating speed interface 41, electric signal test interface 61, input signal interface 71, pwm signal
Test interface 81, CAN signal test interface 91, decoded signal input interface, fault-signal input interface, drive signal input connect
The test window that mouth and CAN signal input interface expose respectively one by one, the display screen 11 are arranged on the leading flank of housing 2.
A kind of New energy automobile motor driver circuit board automatic testing equipment of the present utility model, by circuit board to be tested
100 are placed on test platform, and the measurement of rotating speed interface 41 of test system, electric signal test interface 61, input signal connect afterwards
Mouth 71, pwm signal test interface 81 and CAN signal test interface 91 distinguish the solution of the rotary transformer of circuit board 100 to be tested
The code input of device, the input of voltage and current signal modulate circuit, the output end of voltage and current signal modulate circuit, IGBT drive
Input, the input of CAN bus circuit of dynamic circuit are electrically connected, the output end of the decoder of circuit board 100 to be tested,
Ensure the output end of protection circuit, the output end of IGBT drive circuit and CAN bus circuit output end correspond respectively with
MCU10 decoded signal input interface, fault-signal input interface, drive signal input interface and CAN signal input interface pair
Electrical plug is answered, test is so completed and prepares, starts test system, MCU10 control testing of electric motors 3 works, and testing of electric motors 3 drives
Rotary transformer 4 rotates, and rotary transformer 4 outputs signal to the decoder of the rotary transformer of circuit board 100 to be tested, through treating
After the decoder of test circuit plate 100, MCU10 receives the decoded signal of the decoder of rotary transformer again, and now MCU10 will be defeated
The rotating signal of the decoding entered with export driving treat the rotating signal of measured motor 3 compared with, so as to judge test circuit
Whether the decoding circuit of plate is abnormal；Correspondingly MCU10 gives electricity to be tested by D/A converter module 4, output signal conditioning module 5
Voltage and current signal modulate circuit input voltage, electric current, the temperature signal of road plate 100, voltage, electric current, the temperature signal of input
MCU10 is inputed to through input signal conditioning module 6 again after the voltage and current signal modulate circuit of circuit board 100 to be tested,
Voltages, electric current and temperature signal of the MCU10 by obtaining are judged compared with the voltage, electric current and temperature signal that export
Whether the voltage and current signal modulate circuit of test circuit plate is abnormal, meanwhile, the voltage and current signal of test circuit plate during test
Voltage, electric current and the temperature signal of modulate circuit can also be sent to fault secure circuit, and MCU10 steps up or gradually reduced defeated
Voltage, electric current and the temperature signal gone out, until the fault secure circuit of test circuit plate 100 makes action, now learn failure
Voltage, electric current and the temperature value that protection circuit appearance acts, and shown by display screen 11, the electricity that display screen 11 is shown
Virtual voltage, electric current and the temperature value that the fault secure circuit of pressure, electric current and temperature value and test circuit plate 100 works carry out core
To that can judge whether the fault secure circuit of test circuit plate is abnormal；MCU gives test electricity by pwm signal buffer module 8
Road plate 100 inputs pwm signal, IGBT drive signals corresponding to the IGBT drive circuit output of test circuit plate 100, and MCU passes through
Analog-to-digital conversion sampling interface IGBT drive signals, so as to obtain level and frequency, MCU10 utilizes the level and frequency of input and defeated
The pwm signal gone out, which is compared, can judge whether the IGBT drive circuit of test circuit plate 100 is abnormal, and MCU10 passes through CAN
Signal buffer module 9 sends CAN signal to the CAN bus circuit of test circuit plate 100, and MCU10 receives test circuit plate hair again
The CAN signal gone out is compared the CAN signal that sends and receives to judge whether the CAN bus circuit of test circuit plate is normal.
Compared with prior art, by measurement of rotating speed interface, electric signal test interface, input signal interface, pwm signal test interface,
CAN signal test interface, decoded signal input interface, fault-signal input interface, drive signal input interface and CAN signal are defeated
Incoming interface electrically connects with the corresponding interface of test circuit plate to nurse one's health electricity to decoder, the voltage and current signal of test circuit plate
Road, IGBT drive circuit, fault secure circuit and CAN bus circuit are detected, and are finally given the abnormality test of circuit board, are adopted
With intelligence test, testing efficiency is high, accurate testing, and test operation is simply, conveniently.
Sheet is new to be further preferably：The support, which is located at by the left side of test platform 1 to be provided with, to be treated test circuit plate 100 and enters
The conveyer belt 12 of row conveying and the transport driving 13 of control conveyer belt, the installation of this conveyer belt 12 is using known skill
Art, transport driving 13 are motor-driven mechanism, are the more conventional dynamic transmission system in existing machinery field, no longer tired herein
State；And the machinery that can be picked up the circuit board to be tested on conveyer belt 12 and relay to test platform 1 is installed on support and pressed from both sides
Hand and the tong drive mechanism 14 of control machinery tong action, the mechanical tong is above and below energy and the manipulator of all-directional rotation,
A manipulator more conventional, is a known technology, does not repeat herein in present automated machine field, tong driving
Mechanism 14 can drive mechanical tong up and down and all-directional rotation, is also a known technology；MCU10 output end and feed drive machine
The input of structure and the input of tong drive mechanism 14 control connection respectively；So, before test, worker can will one by one will be to be measured
Examination circuit board is placed on conveyer belt 12, is delivered to test platform 1 by conveyer belt 12, then pressed from both sides by the mechanism of test platform 1
Hand is picked up and is placed on test platform 1, is finally plugged each interface by another worker, connects a whole workflow
Continuous, mechanically actuated, further improve test job efficiency.
Sheet is new to be further preferably：The support 1 is located at conveyer belt 12 to be provided with to be treated for detecting on conveyer belt 12
The infrared range-measurement system (being not drawn into figure) of test circuit plate, infrared range-measurement system are provided with two, and two infrared range-measurement systems are along conveyer belt
Conveying direction interval be distributed side by side, the output end of two infrared range-measurement systems electrically connects with MCU input respectively；So, pass through
Two infrared range-measurement systems can detect whether the placement of the circuit board to be tested on conveyer belt 12 is straight, if can be by showing when not straight
Display screen 11 shows that now worker can adjust circuit board to be tested in time, then straight circuit board to be tested when test prepares
Be advantageous to the quick grafting of each interface.
It the foregoing is only the preferred embodiment of the present embodiment, all equalizations done with the utility model claims scope
Change and modification, all should belong to right of the present utility model.
Claims (5)
- A kind of 1. New energy automobile motor driver circuit board automatic testing equipment, it is characterised in that：It is including support and test Unite, there is the test platform lain against for circuit board to be tested on support, above-mentioned test system is arranged on support, above-mentioned survey Test system have testing of electric motors, rotary transformer, D/A converter module, output signal conditioning module, input signal conditioning module, Pwm signal buffer module, CAN signal buffer module, MCU and display screen, above-mentioned MCU output end and above-mentioned display screen, test Motor, D/A converter module are electrically connected, and above-mentioned rotary transformer is arranged on the output shaft of above-mentioned testing of electric motors, above-mentioned rotation The output end of transformation depressor is electrically connected with the rotating speed electrically connected for the decoder of the rotary transformer with circuit board to be tested and surveyed Try mouth, the output end of above-mentioned D/A converter module electrically connects with the input of above-mentioned output signal conditioning module, above-mentioned output The output end of Signal-regulated kinase is electrically connected with to be electrically connected with the input of the voltage and current signal modulate circuit of circuit board to be tested The electric signal test interface connect, the input of above-mentioned input signal conditioning module has to be believed with the voltage x current of circuit board to be tested The input signal interface of the output end electrical connection of number modulate circuit, output end and the above-mentioned MCU of above-mentioned input signal conditioning module Input electrical connection, the input of above-mentioned pwm signal buffer module and the input of CAN signal buffer module respectively with it is above-mentioned MCU output end electrical connection, the output end of above-mentioned pwm signal buffer module have the IGBT drive circuit with circuit board to be tested The pwm signal test interface of electrical connection, the output end of above-mentioned CAN signal buffer module is with total with the CAN of circuit board to be tested The CAN signal test interface of the output end electrical connection of line circuit, above-mentioned MCU input, which has, to be used to receive circuit board to be tested Rotary transformer decoder decoded signal decoded signal input interface, for receive circuit board to be tested failure protect The fault-signal input interface of protection circuit output signal, IGBT drive circuit output signal for receiving circuit board to be tested The CAN signal input interface of drive signal input interface and the CAN signal for receiving circuit board output to be tested.
- 2. a kind of New energy automobile motor driver circuit board automatic testing equipment according to claim 1, its feature exist In：Above-mentioned support, which is located to be provided with by above-mentioned test platform, treats conveyer belt and control conveyer belt that test circuit plate is conveyed Transport driving, and be provided with and the circuit board to be tested on conveyer belt can be picked up and relayed to test platform on above-mentioned support On mechanical tong and the action of control machinery tong tong drive mechanism, above-mentioned MCU output end and above-mentioned feed drive machine The input of structure and the input of above-mentioned tong drive mechanism control connection respectively.
- 3. a kind of New energy automobile motor driver circuit board automatic testing equipment according to claim 2, its feature exist In：Above-mentioned support is located at the infrared range-measurement system being provided with said conveyer belt for detecting circuit board to be tested on conveyer belt, on State infrared range-measurement system and be provided with two, conveying direction interval of two infrared range-measurement systems along conveyer belt is distributed side by side, and two is above-mentioned infrared Input of the output end of rangefinder respectively with above-mentioned MCU electrically connects.
- 4. a kind of New energy automobile motor driver circuit board automatic testing equipment according to claim 1, its feature exist In：Above-mentioned test system has housing, above-mentioned testing of electric motors, rotary transformer, D/A converter module, output signal conditioning mould Block, input signal conditioning module, MCU, pwm signal buffer module and CAN signal buffer module are mounted in housing, above-mentioned shell Body is arranged on the side of test platform, is offered on above-mentioned housing for measurement of rotating speed interface, electric signal test interface, input letter The test window that number interface, pwm signal test interface and CAN signal test interface expose respectively, above-mentioned display screen are arranged on On above-mentioned housing.
- 5. a kind of New energy automobile motor driver circuit board automatic testing equipment according to claim 1, its feature exist In：Above-mentioned testing of electric motors is stepper motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720763975.9U CN206975173U (en) | 2017-06-28 | 2017-06-28 | A kind of New energy automobile motor driver circuit board automatic testing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720763975.9U CN206975173U (en) | 2017-06-28 | 2017-06-28 | A kind of New energy automobile motor driver circuit board automatic testing equipment |
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| Publication Number | Publication Date |
|---|---|
| CN206975173U true CN206975173U (en) | 2018-02-06 |
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ID=61406967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720763975.9U Active CN206975173U (en) | 2017-06-28 | 2017-06-28 | A kind of New energy automobile motor driver circuit board automatic testing equipment |
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| CN (1) | CN206975173U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111239603A (en) * | 2020-01-15 | 2020-06-05 | 沈阳工业大学 | Device and method for testing inductance of permanent magnet synchronous reluctance motor for electric vehicle |
-
2017
- 2017-06-28 CN CN201720763975.9U patent/CN206975173U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111239603A (en) * | 2020-01-15 | 2020-06-05 | 沈阳工业大学 | Device and method for testing inductance of permanent magnet synchronous reluctance motor for electric vehicle |
| CN111239603B (en) * | 2020-01-15 | 2022-02-08 | 沈阳工业大学 | Device and method for testing inductance of permanent magnet synchronous reluctance motor for electric vehicle |
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