CN209014702U - A kind of micromotor type approval test test device - Google Patents
A kind of micromotor type approval test test device Download PDFInfo
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- CN209014702U CN209014702U CN201821623274.6U CN201821623274U CN209014702U CN 209014702 U CN209014702 U CN 209014702U CN 201821623274 U CN201821623274 U CN 201821623274U CN 209014702 U CN209014702 U CN 209014702U
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Abstract
A kind of micromotor type approval test test device, including cabinet and cover board, what body side was equipped with more than one number includes DC power supply feeder ear, ground terminal, the electromechanical testing interface at pwm control signal end and speed feedback end, AC/DC power module connects alternating current, DC/DC programmable power supply module connects AC/DC power module and master control processing module, the DC power supply feeder ear of the power output end connection electromechanical testing interface of DC/DC programmable power supply module, master control processing module is connect with dataphone, the ground terminal of the ground terminal connection master control processing module of electromechanical testing interface, master control processing module is connected with the pwm control signal end of electromechanical testing interface and speed feedback end.The test device solves the problems, such as that electrical type tests manual record is measured with occupancy a large number of experiments person works not in time in the prior art, the timeliness of motor status reference record and details is greatly improved in electrical type tests, greatly reduces the workload of testing crew.
Description
Technical field
The utility model relates to electricity field more particularly to motor performance test technology, especially a kind of micro electric type
Formula experiment test device.
Background technique
In frost-free refrigerator, blower is one of most important components in addition to the compressor.Micromotor is as blower
Driving motor needs to have the ability for bearing normally to start and run under high temperature and humidity and low temperature, this is not only to the design of motor
Requirement is proposed with material, environmental requirement also is proposed to the test of motor and test.To guarantee properties of product, the examination of motor pattern
The environmental requirement tested is formulated -40 DEG C to+60 DEG C (90% humidity).
To meet the temperature and humidity environment of micromotor type approval test, and it is able to satisfy the requirement of multiple electric motors while test, it is existing
Have in technology using high-low temperature test chamber.The high-low temperature test chamber carries principle and heating tube and humidification using the heat of refrigerator
The equipment such as device can realize the environment of -40 DEG C to+60 DEG C (90% humidity) in experiment casing.More tested motors can place simultaneously
It is tested in high-low temperature test chamber, the lead of tested motor is connected to outside cabinet by the wiring hole of high-low temperature test chamber, is led to
The equipment such as DC power supply are crossed to be powered tested motor.
Since micromotor runs the application particularity with frequent starting for a long time in refrigerator, motor is in the high and low temperature test case
Interior type approval test needs whole day twenty four hours uninterruptedly to carry out, and a test period is 36 days time-consuming.During test, height
Warm test box can control the intracorporal environment of its case, every 4 hours changed test environment, in -40 DEG C and+60 DEG C of (90% humidity) rings
Switch mutually between border.Dduring test, using timer switch, interval time is to tested electricity for external dc power power supply unit
Machine provides DC power supply, frequently makes electric motor starting and stopping.
Above-mentioned testing process needs testing crew twenty four hours guard on duty by turns, and records the operating status of each motor
And environment temperature.Even so, when tested motor is in the gap that testing crew records, generation starting failure or short time operation are different
Often, can ignore because not finding in time.And paper record data volume is big, for analyzing tested motor operating condition workload
Greatly.Testing crew needs to measure tested motor revolving speed by tachometer, and not only workload is non-for measurement and record tested motor revolving speed
Chang great, and the tachometer value low precision obtained, influence electrical type tests result.
Utility model content
The purpose of this utility model is to provide a kind of micromotor type approval test test devices, by being connected to high/low temperature
The automated test device that modularized design is used outside test box, solves in the prior art that electrical type tests manual record is not
The problem of in time and occupying a large number of experiments person works amount, is greatly improved motor status reference record in electrical type tests
Timeliness and details, greatly reduce the workload of testing crew.
This micromotor type approval test test device of the utility model, including cabinet and cover board are set in the cabinet
There are AC/DC power module, DC/DC programmable power supply module, master control processing module and temperature sensing circuit, the DC/DC program-controlled
Power module includes control interface, wherein the body side is equipped with the electromechanical testing interface of more than one number, any one
A electromechanical testing interface respectively includes DC power supply feeder ear, ground terminal, pwm control signal end and speed feedback
End, the AC/DC power module connect alternating current, the input terminal of the DC/DC programmable power supply module and the AC/DC power module
Output end connection, the control interface of DC/DC programmable power supply module is connected with the master control processing module, DC/DC program-controlled electric
The power output end of source module connects the DC power supply feeder ear in the electromechanical testing interface, the master control processing module and electricity
Brain communication connection sends electrical type tests data, and the ground terminal connection master control processing module in the electromechanical testing interface connects
Ground terminal, the master control processing module in the electromechanical testing interface pwm control signal end and speed feedback end be connected, it is described
Temperature sensing circuit is connect with master control processing module, and temperature sensing circuit is connect with temperature detector again.
Further, the AC/DC power module, DC/DC programmable power supply module and master control processing module are plugged on described
In the intracorporal module slot of case.
Further, the body side is equipped with touch display screen, and the touch display screen connects the master control and handles mould
Block.
Further, the master control processing module includes 32-bit microprocessor and is connected on the 32-bit microprocessor
DC/DC converter, DC/DC programmable power supply communication interface, touch screen communication interface, RS485 mould group, temperature sensing circuit, control
Signal potential converter and tach signal converter, the RS485 mould group are sequentially connected communication conversion by RS485 communication interface
Module and computer, the control signal potential converter and tach signal converter pass through the PWM on the electromechanical testing interface
Control signal end connects motor, the temperature detection in the temperature sensing circuit connection high-low temperature test chamber with speed feedback end
Device.
Further, the RS485 mould group is logical using the chip composition isolation 485 of model MAX3082 and ADUM1201
Believe circuit.
Further, the 32-bit microprocessor uses the chip of model STM32C8T6.
Further, the temperature detector is arranged in high-low temperature test chamber.
The working principle of the utility model is: when type approval test starts, test needed for testing crew configures on computers
Parameter simultaneously starts from dynamic test.Test equipment can be spaced the power supply for opening tested motor, and every 1 according to configuration parameter
Second time, record in revolving speed, working voltage, power, current time date and the high-low temperature test chamber of each tested motor
The multinomial informations such as temperature.After Test Information is aggregate to computer, is arranged by computer and be recorded in Excel tables of data, and every
A period of time establishes a new Excel table storage.
The utility model compares with prior art, and effect is positive and apparent.The utility model is by being connected to
The automated test device that modularized design is used outside the high and low temperature test case, it is artificial to solve electrical type tests in the prior art
The problem of record is measured with occupancy a large number of experiments person works not in time is greatly improved motor status in electrical type tests and joins
The timeliness and details of number scale record, greatly reduces the workload of testing crew.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the schematic diagram of circuit connection structure of the utility model.
Fig. 3 is the master control processing module electrical block diagram of the utility model.
Specific embodiment
Embodiment 1:
As shown in Figure 1 to Figure 3, this micromotor type approval test test device of the utility model, including cabinet 1 and lid
Plate 2, cabinet 1 is interior to be equipped with AC/DC power module 3, DC/DC programmable power supply module 4 and master control processing module 5, and 1 side of cabinet is equipped with
The electromechanical testing interface 6 of more than one number, the electromechanical testing interface 6 of any one respectively include DC power supply feeder ear
601, ground terminal 602, pwm control signal end 603 and speed feedback end 604, AC/DC power module 3 connect alternating current, DC/DC journey
Control power module 4 is connected with AC/DC power module 3 and master control processing module 5 respectively, and the power supply of DC/DC programmable power supply module 4 is defeated
Outlet connects the DC power supply feeder ear 601 of electromechanical testing interface 6, and master control processing module 5 is connect with dataphone sends motor
Type approval test data, the ground terminal 602 of electromechanical testing interface 6 connect the ground terminal of master control processing module 5, master control processing module 5
It is connected with 603 end of pwm control signal of electromechanical testing interface 6 and speed feedback end 604.
Further, AC/DC power module 3, DC/DC programmable power supply module 4 and master control processing module 5 are plugged on cabinet 1
In interior module slot 7.
Further, 1 side of cabinet is equipped with touch display screen 8, and touch display screen 8 connects master control processing module 5.
Further, master control processing module 5 includes 32-bit microprocessor 501 and is connected on 32-bit microprocessor 501
DC/DC converter 502, DC/DC programmable power supply communication interface 503, touch screen communication interface 504, RS485 mould group 505, temperature inspection
Slowdown monitoring circuit 506, control signal potential converter 507 and tach signal converter 508, RS485 mould group 505 are communicated by RS485
Interface 509 is sequentially connected communication conversion module and computer, controls signal potential converter 507 and tach signal converter 508 is logical
It crosses the pwm control signal end 603 on electromechanical testing interface 6 and speed feedback end 604 and connects motor, temperature sensing circuit 506 connects
Connect the temperature detector in high-low temperature test chamber.
Further, RS485 mould group 505 is communicated using the chip composition isolation 485 of model MAX3082 and ADUM1201
Circuit.
Further, 32-bit microprocessor 501 uses the chip of model STM32C8T6.
Test equipment is according to modularized design, when there is module to need replacing, need to only disconnect the connecting line of respective modules, from
Module is taken out in module slot 7.Equipment cover board 2 is closed at work, can play safeguard protection and dustproof effect.
Equipment shares 3 module slots 7, and AC/DC power module 3 is used as power adapter, AC/DC(Alternating
Current/Direct Current) it is the abbreviation that convert alternating current is direct current, module has used the EPP-150-24 of bright latitude
Alternating current-direct current module.The alternating current of 220V/50Hz is converted to direct current 24V by AC/DC power module 3, be supplied to tested motor and
Equipment itself uses.AC/DC power module 3 has the multinomial defencive function such as overload protection and hot fuse wire, can be in equipment
It is unaffected with the other equipment of net alternating current that protection when serious problems occurs.
DC/DC programmable power supply module 4 is multi-functional customized module, DC/DC(Direct Current/ Direct
Current) it is abbreviation that DC power conversion is direct current.DC/DC programmable power supply module 4 has independent microprocessor, uses
8 STM8S103 of ST company, can externally carry out serial communication.In addition, the module is also loaded with DC decompression, switching molding group, electricity
Pressure and current detection circuit.After microprocessor receives customized communications protocol from serial ports, DC/DC chip XL1509, field are utilized
The switching power circuit of effect pipe IRF9540, capacitor and inductance composition, the decompression that direct current can be carried out by instruction is handled, with this
Given voltage needed for realizing type approval test exports.
The microprocessor of DC/DC programmable power supply module 4, when receiving the communication instruction from serial ports, controllable module is taken
The Switching Power Supply of load carries out the opening and closing of powered by direct current.
The microprocessor of DC/DC programmable power supply module 4 can be read in real time by the voltage and current detection circuit of carrying
To the voltage and current value currently exported.The detection circuit is using MCP6002 two-way amplifier chip as core, at the signals such as electric current
Reason is the analog signal that microprocessor can receive.When microprocessor receives send instructions, then by real-time voltage and current
Value is sent by serial ports.
The RS485 mould group 505 of master control processing module 5, core be MAX3082 chip and ADUM1201 chip composition every
From 485 telecommunication circuits, which can also carry out the device of communication and networking with other automatic test equipments.RS485 is mark
Quasi- industrial bus has the advantage for inhibiting common mode interference and long haul communication using half duplex mode of communication.
32-bit microprocessor 505 in master control processing module 5 is equipment processing using the STM32C8T6 chip of ST company
The core of data and control, test parameters that testing crew is arranged on computers, including output voltage, operation and dwell time etc.
Parameter is sent in the microprocessor of master control processing module 5 by RS485, the parameter that microprocessor is inputted according to testing crew
Carry out automatic running and control.
By controlling signal potential converter 507, the exportable pwm control signal of microprocessor controls quilt to tested motor
The revolving speed of measured motor.Since 32-bit microprocessor 501 is the operating voltage of 3.3V, and motor it is receivable be 5V PWM control
Signal, so 507 circuit of control signal potential converter is using current potential conversion chip SN74LV1T126 as core, 3.3V is electric
Position is converted to 5V current potential.Test equipment shares 8 groups of mutually independent control signal potential converters 507, can be respectively with not synchronized
Degree 8 tested motors of control.
Tested motor in the process of running, can generate a square-wave signal as speed feedback signal.Speed feedback letter
Number amplitude is supply voltage, and duty ratio fixes 50%, and the revolving speed of frequency and motor has certain transformational relation, is turned according to motor
Fast conversion formula, motor speed n=speed feedback signal frequency f removes rotor number of pole-pairs, multiplied by 60.
Tach signal converter 508 in master control processing module 5, analog equipment is in practical applications on refrigerator master control borad
Circuit, using NPN triode as core.The tach signal of motor is input to the base stage of NPN triode, is converted to 3.3V in collector
Signal after, be transferred in microprocessor.Microprocessor calculates the frequency of tach signal, and utilizes motor speed formula, i.e.,
The revolving speed of tested motor can be obtained.Motor speed is sent in computer after filtering arranges by RS485 mould group 505.
Temperature sensing circuit 506 in master control processing module 5 is using modulus conversion chip ICL7107 as core, by external temperature
The analog signal of degree detector issues microprocessor after being converted to digital signal.
The serial communication interface of microprocessor 501, wherein 2 tunnels are communicated with external module, first is that with DC/DC program-controlled electric
Source module 4 is communicated, and controls the voltage of output, control voltage opens and closes and read voltage and current value.Another way
It is communicated with touch screen 8, the human-computer interaction interface of micromotor type approval test automatic test equipment is provided.
When having multiple test items while carrying out type approval test, more micromotor type approval test automatic test equipment are logical
Crossing RS485 module can connect networking.Computer is carried out with postponing, can timesharing receive the test data from distinct device, according to setting
Standby number carries out classification and saves data, greatly improves and manages and controls cost.
It in the front end of computer, accesses between micromotor type approval test automatic test equipment, is configured with communication conversion module.
The effect of the module is that the differential communication signal of RS485 mould group 505 is converted to the identifiable Universal USB level letter of computer
Number.
Electromechanical testing interface 6 is made of one group of water proof and dust proof aviation plug, and each interface is correspondingly connected with a micromotor,
DC power supply supply lines, ground line, pwm control signal line and speed feedback line are provided for micromotor.By being mounted on height
Micromotor lead in temperature test box connects on electromechanical testing interface 6.
Touch display screen 8 is one piece of small-sized 3.2 inch screen, provides the people of micromotor type approval test automatic test equipment
The address number of current device can be checked and be configured to machine interactive interface, testing crew, which is used in networking model,
The unique identification equipment.In addition to this, by the touch display screen 8, testing crew can also check total operation function of current device
Situations such as rate and communication information, facilitates testing crew to grasp the operating condition of every equipment.
Equipment reads motor temperature value by legal person's temperature detecting module in high-low temperature test chamber, passes through master control processing module
After 5 processing, according to the sampling period of configuration, it is sent collectively in computer with information such as motor speeds.Host computer in computer,
Receive the every motor operating parameter and ambient temperature value that the micromotor type approval test test device of specified address is sent
Afterwards, these data are arranged, adds date and time, is stored in Excel file.While testing progress, test
The Excel file that test result preservation can be obtained in personnel at any time can search tested motor revolving speed by the software of customization automatically
Or the situation of power exception, and ambient temperature value when being abnormal can be learnt according to collected ambient temperature information.
Claims (7)
1. a kind of micromotor type approval test test device, including cabinet and cover board, the cabinet is interior to be equipped with AC/DC power supply mould
Block, DC/DC programmable power supply module, master control processing module and temperature sensing circuit, the DC/DC programmable power supply module include
Control interface, it is characterised in that: the body side is equipped with the electromechanical testing interface of more than one number, any one of
Electromechanical testing interface respectively includes DC power supply feeder ear, ground terminal, pwm control signal end and speed feedback end, described
AC/DC power module connects alternating current, the output of the input terminal of the DC/DC programmable power supply module and the AC/DC power module
End connection, the control interface of DC/DC programmable power supply module are connected with the master control processing module, DC/DC programmable power supply module
Power output end connect the DC power supply feeder ear in the electromechanical testing interface, the master control processing module and dataphone
Connection sends electrical type tests data, the ground terminal of the ground terminal connection master control processing module in the electromechanical testing interface,
The master control processing module in the electromechanical testing interface pwm control signal end and speed feedback end be connected, the temperature
Detection circuit is connect with master control processing module, and temperature sensing circuit is connect with temperature detector again.
2. micromotor type approval test test device as described in claim 1, it is characterised in that: the AC/DC power module,
DC/DC programmable power supply module and master control processing module are plugged in the intracorporal module slot of the case.
3. micromotor type approval test test device as described in claim 1, it is characterised in that: the body side is equipped with touching
Display screen is touched, the touch display screen connects the master control processing module.
4. micromotor type approval test test device as described in claim 1, it is characterised in that: the master control processing module packet
Include 32-bit microprocessor and be connected on the 32-bit microprocessor DC/DC converter, DC/DC programmable power supply communication interface,
Touch screen communication interface, RS485 mould group, control signal potential converter and tach signal converter, the RS485 mould group pass through
RS485 communication interface is sequentially connected communication conversion module and computer, the control signal potential converter and tach signal conversion
Device connects motor with speed feedback end by the pwm control signal end on the electromechanical testing interface.
5. micromotor type approval test test device as claimed in claim 4, it is characterised in that: the RS485 mould group uses
Chip composition 485 telecommunication circuits of isolation of model MAX3082 and ADUM1201.
6. micromotor type approval test test device as claimed in claim 4, it is characterised in that: the 32-bit microprocessor is adopted
With the chip of model STM32C8T6.
7. micromotor type approval test test device as described in claim 1, it is characterised in that: the temperature detector is set
It sets in high-low temperature test chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821623274.6U CN209014702U (en) | 2018-10-08 | 2018-10-08 | A kind of micromotor type approval test test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821623274.6U CN209014702U (en) | 2018-10-08 | 2018-10-08 | A kind of micromotor type approval test test device |
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| Publication Number | Publication Date |
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| CN209014702U true CN209014702U (en) | 2019-06-21 |
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| CN201821623274.6U Active CN209014702U (en) | 2018-10-08 | 2018-10-08 | A kind of micromotor type approval test test device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112415390A (en) * | 2020-11-30 | 2021-02-26 | 东南大学 | Motion control experimental device for modular hybrid excitation motor |
| CN113791295A (en) * | 2021-09-09 | 2021-12-14 | 浙江佳明天和缘光伏科技有限公司 | On-line power-on test machine and test method for high-low temperature test of solar junction box |
-
2018
- 2018-10-08 CN CN201821623274.6U patent/CN209014702U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112415390A (en) * | 2020-11-30 | 2021-02-26 | 东南大学 | Motion control experimental device for modular hybrid excitation motor |
| CN113791295A (en) * | 2021-09-09 | 2021-12-14 | 浙江佳明天和缘光伏科技有限公司 | On-line power-on test machine and test method for high-low temperature test of solar junction box |
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