CN203241490U - Intelligent temperature rise testing system used for electrical products - Google Patents
Intelligent temperature rise testing system used for electrical products Download PDFInfo
- Publication number
- CN203241490U CN203241490U CN 201320174639 CN201320174639U CN203241490U CN 203241490 U CN203241490 U CN 203241490U CN 201320174639 CN201320174639 CN 201320174639 CN 201320174639 U CN201320174639 U CN 201320174639U CN 203241490 U CN203241490 U CN 203241490U
- Authority
- CN
- China
- Prior art keywords
- circuit
- temperature
- temperature rise
- electric equipment
- control chip
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model relates to the field of electrical product testing technology and specifically relates to an intelligent temperature rise testing system used for electrical products. The intelligent temperature rise testing system used for the electrical products includes a main circuit part and an auxiliary part. The main circuit part includes an AC power source circuit. The auxiliary circuit part includes a temperature collecting device and a temperature recording device. The temperature collecting device and the temperature recording device are connected with a control chip respectively. The intelligent temperature rise testing system used for the electrical products controls output waveforms of a power source according to a condition of a product component temperature change rate calculated by DSP and FPGA control chip of the high-precision program controlled AC power source for realizing an aim of monitoring temperature stability state automatically and switching input conditions of to-be-detected electrical products automatically, so that efficiency of testing temperature rise of the electrical product is improved substantially, testing precision is improved, labor strength of a testing worker is reduced, labor cost is reduced and the detection work is intelligentialized.
Description
Technical field
The utility model relates to the electric equipment products technical field of measurement and test, more specifically, relates to a kind of electric equipment products intelligence temperature rise test macro.
Background technology
The temperature rise test is the most conventional test event in the electric equipment products secure authentication testing, and this test is engaged test personnel the longest projects of test duration.Its test purpose is the limit value that the temperature rise of relevant critical component can not be above standard and stipulate when checking product to work under rated condition.The initial conditions of temperature rise when test electric equipment products need be considered the tolerance (voltage tolerance in the example " the safe part 1 of GB 4943.1-2011 Information Technology Equipment: General Requirement " require be ± 10%) of input voltage and the impact of rated frequency, and temperature rise is tested and need to be tested under various initial conditions so.Illustrate, the specified input voltage of power supply adaptor is 100-120V/200-240Vac, rated frequency is 50/60Hz, temperature rise test input condition is 264V/50Hz, 264V/60Hz, 180V/50Hz, 180V/60Hz, 132V/50Hz, 132V/60Hz, 90V/50Hz, 90V/60Hz totally 8 set conditions so, all conditions is tested and is got off to need tens hours time, and the tester needs constantly monitoring record temperature stabilization situation and manual switchover initial conditions.
At present, the temperature rise of domestic electric equipment products test mostly is in craft or semi-automatic test stage, all is that automatization level is low by manual monitoring temperature stabilization state and switch test condition, and work efficiency is low, and the human cost of consumption is high.
Summary of the invention
The utility model is for overcoming the described at least a defective of above-mentioned prior art, but the electric equipment products intelligence temperature rise test macro of the temperature stabilization state of the tested electric equipment products of a kind of monitoring record and the product initial conditions that automaticallyes switch is provided.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of electric equipment products intelligence temperature rise test macro wherein, comprises main circuit part and secondary circuit part;
Described main circuit partly is AC power circuit, the DC/DC translation circuit, full bridge inverter, the output filter circuit that comprise current rectifying and wave filtering circuit, be connected successively with current rectifying and wave filtering circuit, current rectifying and wave filtering circuit also connects biasing circuit, biasing circuit connects the DC/DC translation circuit, the user-machine interface circuit that AC power circuit also comprises control chip, is connected with biasing circuit, control chip connects respectively biasing circuit, full bridge inverter, output filter circuit, user-machine interface circuit, and the user-machine interface circuit is connecting test condition entry device also;
Described secondary circuit part comprises temperature collecting device and temperature recording unit, and temperature collecting device is connected with control chip with temperature recording unit and is connected.In these electric equipment products intelligence temperature rise test macro, control chip is DSP and FPGA control chip.
Alternating current is input to current rectifying and wave filtering circuit, current rectifying and wave filtering circuit with input voltage through providing a purer voltage for subsequent conditioning circuit behind the rectifying and wave-filtering.And biasing circuit provides bias voltage for all circuit.
Power circuit adopts two pole-changes, and isolation between the level mainly comprises DC/DC translation circuit and full bridge inverter two parts before and after realizing.Prime DC/DC translation circuit uses high-frequency transformer to input and the electrical isolation of exporting, and simultaneously, control circuit sampling output voltage carries out closed-loop control, can obtain stable direct current output.The rear class full bridge inverter adopts sinusoidal pulse width modulation (SPWM) technology, is output as reference data with AWG (Arbitrary Waveform Generator), according to the equivalent area principle, generates the equivalent PWM ripple of required waveform.
Output filter circuit comprises filter inductance and filter capacitor, and both consist of the low pass output filter circuit together.Can connect the equipment that some exchange with the people by the user-machine interface circuit, such as display, behind the voltage and frequency of DSP and FPGA control chip control output, the waveform of voltage and frequency is shown at display, make lab assistant can check intuitively data, but the voltage of the tested electric equipment products of immediately monitoring and frequency change state.The independence of lab assistant is high, better analyzes intuitively, deal with data.
Described test condition input media is keyboard.Can pre-enter many group temperature rise test input voltages and frequency by the keyboard lab assistant, temperature rise test condition such as power supply adaptor: then 264V/50Hz, 264V/60Hz, 180V/50Hz, 180V/60Hz, 132V/50Hz, 132V/60Hz, 90V/50Hz, 90V/60Hz etc. are stored in these many group temperature rise test input voltages and frequency data in DSP and the FPGA control chip.
DSP and FPGA control chip are the cores of programmable AC power supply, the demand that control and waveform occured arbitrarily when it had realized the power supply high-precision real, the PID that has finished power circuit control with the communicating by letter of related peripheral circuit.After the information processings such as the amplitude that DSP and FPGA control chip will be inputted and feed back, frequency, phase place, generate required SPWM signal, the output of control power supply.Specified input voltage such as power supply adaptor is 100-120V/200-240Vac, rated frequency is 50/60Hz, temperature rise test input condition can be changed into 264V/50Hz, 264V/60Hz, 180V/50Hz, 180V/60Hz, 132V/50Hz, 132V/60Hz, 90V/50Hz, 90V/60Hz etc. by DSP and FPGA control chip.Can gather the temperature of tested electric equipment products by temperature collecting device, temperature signal is changed in digital signal input DSP and the FPGA control chip, the rate of change of DSP and FPGA control chip accounting temperature, when temperature variation is stabilized within the design temperature and keeps a setting-up time, the default program of DSP and FPGA control chip thinks that temperature is to reach stable condition, output voltage and frequency transformation are organized default test input condition to next, be 264V/50Hz such as temperature rise first time test input condition, process DSP and FPGA control chip judgement temperature variation are stabilized within the design temperature and keep a setting-up time, then change temperature rise test input condition into default 264V/60Hz, so analogize, until finish the many groups temperature rise test input condition that pre-enters.
The product component rate of temperature change condition that DSP by the high-precision program control AC power and FPGA control chip calculate is controlled the output waveform of power supply, to reach automatic monitoring temperature stabilization state and the functional purpose of the tested electric equipment products initial conditions that automaticallyes switch, thereby greatly improved the efficient of electric equipment products temperature rise test, improved measuring accuracy, reduced tester's labour intensity, saved human cost, made testing intelligent.
Further, described temperature collecting device comprises temperature sensor, and temperature sensor is connected with tested electric equipment products.Described temperature recording unit comprises a database, is used for the storing temperature data.Described temperature recording unit also connects a printer.Pass through temperature sensor, can effectively detect the temperature of tested electric equipment products, when temperature sensor detects temperature variation, by temperature collecting device data are delivered in DSP and the FPGA control chip, chip is recorded in the temperature data of all changes in the database in the temperature recording unit, the situations such as temperature, output voltage, frequency can be printed by printer, make the experimenter see more intuitively the situation of change of temperature, output voltage, frequency.
Compared with prior art, beneficial effect is: DSP and the FPGA control chip product component rate of temperature change condition the calculated output waveform of controlling power supply of the utility model by the high-precision program control AC power, to reach automatic monitoring temperature stabilization state and the functional purpose of the tested electric equipment products initial conditions that automaticallyes switch, thereby greatly improved the efficient of electric equipment products temperature rise test, improved measuring accuracy, reduced tester's labour intensity, saved human cost, made testing intelligent.
Description of drawings
Fig. 1 is the integrated circuit principle schematic of embodiment 1.
Fig. 2 is the integrated circuit principle schematic of embodiment 2.
Embodiment
Embodiment 1
Accompanying drawing only is used for exemplary illustration, can not be interpreted as the restriction to this patent; For better explanation present embodiment, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product; To those skilled in the art, in the accompanying drawing some known configurations and explanation thereof may to omit be understandable.Describe position relationship in the accompanying drawing and only be used for exemplary illustration, can not be interpreted as the restriction to this patent.
As shown in Figure 1, a kind of electric equipment products intelligence temperature rise test macro wherein, comprises main circuit part and secondary circuit part;
Described main circuit partly is AC power circuit, the DC/DC translation circuit, full bridge inverter, the output filter circuit that comprise current rectifying and wave filtering circuit, be connected successively with current rectifying and wave filtering circuit, current rectifying and wave filtering circuit also connects biasing circuit, biasing circuit connects the DC/DC translation circuit, the user-machine interface circuit that AC power circuit also comprises control chip, is connected with biasing circuit, control chip connects respectively biasing circuit, full bridge inverter, output filter circuit, user-machine interface circuit, and the user-machine interface circuit is connecting test condition entry device also;
Described secondary circuit part comprises temperature collecting device and temperature recording unit, and temperature collecting device is connected with control chip with temperature recording unit and is connected.In these electric equipment products intelligence temperature rise test macro, control chip is DSP and FPGA control chip.
In the present embodiment, alternating current is input to current rectifying and wave filtering circuit, current rectifying and wave filtering circuit with input voltage through providing a purer voltage for subsequent conditioning circuit behind the rectifying and wave-filtering.And biasing circuit provides bias voltage for all circuit.Power circuit adopts two pole-changes, and isolation between the level mainly comprises DC/DC translation circuit and full bridge inverter two parts before and after realizing.Prime DC/DC translation circuit uses high-frequency transformer to input and the electrical isolation of exporting, and simultaneously, control circuit sampling output voltage carries out closed-loop control, can obtain stable direct current output.The rear class full bridge inverter adopts sinusoidal pulse width modulation (SPWM) technology, is output as reference data with AWG (Arbitrary Waveform Generator), according to the equivalent area principle, generates the equivalent PWM ripple of required waveform.
Output filter circuit comprises filter inductance and filter capacitor, and both consist of the low pass output filter circuit together.Can connect the equipment that some exchange with the people by the user-machine interface circuit, such as display, behind the voltage and frequency of DSP and FPGA control chip control output, the waveform of voltage and frequency is shown at display, make lab assistant can check intuitively data, but the voltage of the tested electric equipment products of immediately monitoring and frequency change state.The independence of lab assistant is high, better analyzes intuitively, deal with data.
In the present embodiment, the test condition input media is keyboard.Can pre-enter many group temperature rise test input voltages and frequency by the keyboard lab assistant, temperature rise test condition such as power supply adaptor: then 264V/50Hz, 264V/60Hz, 180V/50Hz, 180V/60Hz, 132V/50Hz, 132V/60Hz, 90V/50Hz, 90V/60Hz etc. are stored in these many group temperature rise test input voltages and frequency data in DSP and the FPGA control chip.
DSP and FPGA control chip are the cores of programmable AC power supply, the demand that control and waveform occured arbitrarily when it had realized the power supply high-precision real, the PID that has finished power circuit control with the communicating by letter of related peripheral circuit.After the information processings such as the amplitude that DSP and FPGA control chip will be inputted and feed back, frequency, phase place, generate required SPWM signal, the output of control power supply.
In the present embodiment, temperature collecting device comprises temperature sensor, and temperature sensor is connected with tested electric equipment products.Described temperature recording unit comprises a database, is used for the storing temperature data.Described temperature recording unit also connects a printer.Pass through temperature sensor, can effectively detect the temperature of tested electric equipment products, when temperature sensor detects temperature variation, by temperature collecting device data are delivered in DSP and the FPGA control chip, chip is recorded in the temperature data of all changes in the database in the temperature recording unit.
Its specific works principle: at first pre-enter many group temperature rise test input voltages and frequency by the keyboard lab assistant, then these many group temperature rise test input voltages and frequency data are stored in DSP and the FPGA control chip; Then can gather the temperature of tested electric equipment products by temperature collecting device, temperature signal is changed in digital signal input DSP and the FPGA control chip, the rate of change of DSP and FPGA control chip accounting temperature, when temperature variation is stabilized within the design temperature and keeps a setting-up time, the default program of DSP and FPGA control chip thinks that temperature is to reach stable condition, output voltage and frequency transformation are organized default test input condition to next, until finish the many groups temperature rise test input condition that pre-enters.The product component rate of temperature change condition that DSP by the high-precision program control AC power and FPGA control chip calculate is controlled the output waveform of power supply, to reach automatic monitoring temperature stabilization state and the functional purpose of the tested electric equipment products initial conditions that automaticallyes switch, thereby greatly improved the efficient of electric equipment products temperature rise test, improved measuring accuracy, reduced tester's labour intensity, saved human cost, made testing intelligent.
Embodiment 2
As shown in Figure 2, temperature recording unit also connects a printer, the situations such as temperature, output voltage, frequency can be printed by printer, makes the experimenter see more intuitively the situation of change of temperature, output voltage, frequency.The remaining circuit connection of present embodiment and principle of work and embodiment 1 are identical, no longer narrate at this.
Obviously, above-described embodiment of the present utility model only is for the utility model example clearly is described, and is not to be restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.All any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the utility model claim.
Claims (7)
1. an electric equipment products intelligence temperature rise test macro is characterized in that, comprises main circuit part and secondary circuit part;
Described main circuit partly is AC power circuit, the DC/DC translation circuit, full bridge inverter, the output filter circuit that comprise current rectifying and wave filtering circuit, be connected successively with current rectifying and wave filtering circuit, current rectifying and wave filtering circuit also connects biasing circuit, biasing circuit connects the DC/DC translation circuit, the user-machine interface circuit that AC power circuit also comprises control chip, is connected with biasing circuit, control chip connects respectively biasing circuit, full bridge inverter, output filter circuit, user-machine interface circuit, and the user-machine interface circuit is connecting test condition entry device also;
Described secondary circuit part comprises temperature collecting device and temperature recording unit, and temperature collecting device is connected with control chip with temperature recording unit and is connected.
2. a kind of electric equipment products intelligence temperature rise test macro according to claim 1, it is characterized in that: described temperature collecting device comprises temperature sensor, temperature sensor is connected with tested electric equipment products.
3. a kind of electric equipment products intelligence temperature rise test macro according to claim 2, it is characterized in that: described temperature recording unit comprises a database, is used for the storing temperature data.
4. a kind of electric equipment products intelligence temperature rise test macro according to claim 3, it is characterized in that: described temperature recording unit also connects a printer.
5. a kind of electric equipment products intelligence temperature rise test macro according to claim 1, it is characterized in that: described user-machine interface circuit also connects a display.
6. a kind of electric equipment products intelligence temperature rise test macro according to claim 1, it is characterized in that: described test condition input media is keyboard.
7. a kind of electric equipment products intelligence temperature rise test macro according to claim 1, it is characterized in that: described control chip is DSP and FPGA control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320174639 CN203241490U (en) | 2013-04-09 | 2013-04-09 | Intelligent temperature rise testing system used for electrical products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320174639 CN203241490U (en) | 2013-04-09 | 2013-04-09 | Intelligent temperature rise testing system used for electrical products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203241490U true CN203241490U (en) | 2013-10-16 |
Family
ID=49318772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320174639 Expired - Fee Related CN203241490U (en) | 2013-04-09 | 2013-04-09 | Intelligent temperature rise testing system used for electrical products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203241490U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293406A (en) * | 2013-04-09 | 2013-09-11 | 广东省东莞市质量监督检测中心 | Electric appliance product intelligent temperature rise testing system and control method thereof |
| CN104076218A (en) * | 2014-07-03 | 2014-10-01 | 国家电网公司 | Temperature rise test instrument and test method for large current charging connector |
| CN105407017A (en) * | 2015-12-04 | 2016-03-16 | 上海斐讯数据通信技术有限公司 | Router test system and method |
| CN106093772A (en) * | 2016-08-22 | 2016-11-09 | 中华人民共和国东莞出入境检验检疫局 | A kind of electrical switch temperature rise detecting system and method |
-
2013
- 2013-04-09 CN CN 201320174639 patent/CN203241490U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293406A (en) * | 2013-04-09 | 2013-09-11 | 广东省东莞市质量监督检测中心 | Electric appliance product intelligent temperature rise testing system and control method thereof |
| CN103293406B (en) * | 2013-04-09 | 2015-08-19 | 广东省东莞市质量监督检测中心 | A kind of electric appliance product intelligent temperature rise test macro and control method thereof |
| CN104076218A (en) * | 2014-07-03 | 2014-10-01 | 国家电网公司 | Temperature rise test instrument and test method for large current charging connector |
| CN105407017A (en) * | 2015-12-04 | 2016-03-16 | 上海斐讯数据通信技术有限公司 | Router test system and method |
| CN106093772A (en) * | 2016-08-22 | 2016-11-09 | 中华人民共和国东莞出入境检验检疫局 | A kind of electrical switch temperature rise detecting system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202351412U (en) | DC power supply module intelligent detecting system | |
| CN103165201B (en) | Nuclear power station power detection system and method | |
| CN203241490U (en) | Intelligent temperature rise testing system used for electrical products | |
| CN103941211B (en) | A kind of analog input merge cells automatic Verification method | |
| CN206235720U (en) | A kind of LED drives test system | |
| CN207021912U (en) | Multiple-channel output random waveform voltage source system | |
| CN108919002A (en) | A kind of test macro of direct-current charging post | |
| CN107402324B (en) | Power supply sampling circuit and method based on single current transformer and low-voltage circuit breaker thereof | |
| CN108333448A (en) | Transformer routine test comprehensive test device | |
| CN103196491A (en) | Transformer integral comprehensive detection device | |
| CN104502665A (en) | Device and method for testing residual voltage | |
| CN103389424A (en) | Accelerated aging test device of nonlinear resistor disc and method for testing aging characteristics of nonlinear resistor disc | |
| CN105301478A (en) | Detection device and detection method of 3.7V cell single-string protection plate | |
| CN208239569U (en) | A kind of dipulse test platform | |
| CN207764305U (en) | A kind of circuit of detection three-phase alternating-current supply phase shortage | |
| CN103293406B (en) | A kind of electric appliance product intelligent temperature rise test macro and control method thereof | |
| CN204302347U (en) | Microcomputer-recognized intelligent universal meter | |
| CN104049219A (en) | Automatic test instrument for power source test | |
| CN208384025U (en) | A kind of test macro of direct-current charging post | |
| CN107703365A (en) | Power inductance dynamic equivalent inductance value test system and its method of testing | |
| CN104483041A (en) | Temperature rise measurement method and device of coil winding | |
| CN204287447U (en) | A kind of alternating current-direct current input detecting circuit | |
| CN202548234U (en) | Testing equipment of photovoltaic inverter | |
| CN217766596U (en) | Wide-range alternating voltage measuring circuit | |
| CN203084104U (en) | OTP burning and upper/lower-limit voltage detecting system of liquid crystal display module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20160409 |