CN107255528A - A kind of medical electrical equipment direct current winding temperature rise test device and method of testing - Google Patents
A kind of medical electrical equipment direct current winding temperature rise test device and method of testing Download PDFInfo
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- CN107255528A CN107255528A CN201710467574.3A CN201710467574A CN107255528A CN 107255528 A CN107255528 A CN 107255528A CN 201710467574 A CN201710467574 A CN 201710467574A CN 107255528 A CN107255528 A CN 107255528A
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- 238000004804 winding Methods 0.000 title claims abstract description 78
- 238000012360 testing method Methods 0.000 title claims abstract description 50
- 238000010998 test method Methods 0.000 title claims abstract description 8
- 238000012545 processing Methods 0.000 claims abstract description 20
- 238000005259 measurement Methods 0.000 claims abstract description 15
- 238000002474 experimental method Methods 0.000 claims description 20
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000013213 extrapolation Methods 0.000 description 3
- 238000004861 thermometry Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000000611 regression analysis Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K3/00—Thermometers giving results other than momentary value of temperature
- G01K3/08—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values
- G01K3/10—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values in respect of time, e.g. reacting only to a quick change of temperature
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2205/00—Application of thermometers in motors, e.g. of a vehicle
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2219/00—Thermometers with dedicated analog to digital converters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
A kind of medical electrical equipment direct current winding temperature rise test device and method of testing, including：Power module, processor, relay, power supply circuit, resistance measuring circuit, data processing module, A/D converter, temperature test module and timing module.By the conducting of Control resistance measuring circuit or power supply circuit and power module, automatic measurement is realized, is recorded and is calculated, instead of manual measurement record, testing efficiency is high, is effectively reduced human error, it is ensured that the degree of accuracy of detection data.Can as needed free setting measurement interval, record number of times, it is adaptable to different testing requirements, it is reliable and practical, it is easy to promote, may advantageously facilitate medical instruments field supervision quality improve.
Description
Technical field
The present invention relates to motor winding temperature rise fields of measurement, and in particular to a kind of medical electrical equipment direct current winding temperature rise is surveyed
Trial assembly is put and method of testing.
Background technology
In medical instruments field, motor is the electric component being widely used, and in active medical instrument field, most often
Two national standards --- GB9706.1-2007 and GB4793.1-2007 all proposes strict clear and definite to winding temperature rise
Requirement, if because winding temperature rise is excessive, loss increase, efficiency reduction can be caused, can more accelerate insulation ag(e)ing, reduction exhausted
Edge performance, and then have the potential danger for causing and getting an electric shock and trigger and catching fire.Therefore, winding temperature rise is accurately measured, for ensureing
The electrical safety of active medical device has highly important effect.
At present, the method for measurement winding temperature rise has been summed up following several：
1) pre-buried point thermometer method
Point thermometer generally using soldering method, drilling implantation or gluing, is embedded into the exhausted of tested winding by pre-buried point thermometer method
Winding temperature rise is measured in edge layer.
2) IR thermometry
IR thermometry uses contactless infrared radiation thermometer direct measurement.
3）Extrapolation
The resistance of the metals such as copper, aluminium, varies with temperature a certain rule of presentation, the change of resistance is wound by measuring, can be indirect
Ground calculates the change of winding temperature.Because direct current winding is typically all copper winding, therefore by taking copper winding as an example, its temperature rise value is pressed
Formula is calculated：（1）
In formula (1)：
--- temperature rise, unit for degree Celsius（℃）；
R1 --- the resistance value of winding during on-test（Cold-state resistance）, unit is ohm（Ω）；
R2 --- the resistance value of winding during off-test（Hot resistance）, unit is ohm（Ω）；
T1 --- room temperature during on-test, unit for degree Celsius（℃）；
T2 --- room temperature during off-test, unit for degree Celsius（℃）；
From above formula, as long as hot resistance value R2 when can accurately obtain off-test, substitute into formula (1) can just calculate around
The 0s hot resistance values of off-test moment can not possibly be obtained in group temperature rise value, but actual test, because to be initially switched off winding
Power supply, then resistance measuring circuit is switched to, it can only ensure to go measurement as quickly as possible, then be repeated again every a short time
Measure and record, so according to obtained resistance value and its corresponding time, using graphing method or regression analysis, extrapolate R2
Value.Method application at present is than wide, it is necessary to artificial while measurement, while recording, finally carries out data processing and calculating, obtain
To final winding temperature rise value.
4）Powered on-line measurement method
Powered on-line measurement method is, by sealing in a capacitance, the direct current for measuring winding resistance value to be superimposed upon into power supply machine fortune
On capable alternating current, in the energized state at the end of direct measurement temperature rise test R2 value, recycle formula (1) calculated,
So as to obtain final temperature rise value.
Wherein, pre-buried point thermometer method has point thermometer to place difficulty, the characteristics of cost is higher, and IR thermometry can only be surveyed
The casing part of direct current generator is measured, is differed greatly with winding temperature, therefore both approaches are seldom used.Powered online survey
Amount method tester is market-oriented, but due to its test philosophy, is confined to exchange winding, is not particularly suited for direct current winding
Temperature rise is detected.Pass through above-mentioned analysis, it is adaptable to which the detection method of direct current winding temperature rise typically selects extrapolation, but the method is not only imitated
Rate is not high, and because requiring higher to operating personnel, easily influenceed by human error, the reproducibility and reliability of data can be caused to become
Difference.Although in addition application of the pertinent literature to graphing method and regression analysis be described, not suitable for direct current around
Under the conditions of the different tests of group, such as measurement interval, record number of times, Standard resistance range and limit of temperature rise are carried out deep to the above method
Enter research.Disclosed in the U of utility model patent CN 205263209 " household electrical appliances motor winding temperature rise is in apparatus test device and method "
A kind of household electrical appliances motor winding temperature rise in apparatus test device mainly for GB 4706.1-2005《The electrical equipment of family expenses and similar applications
Safe part 1：General Requirement》In for machine winding temperature rise test, the device be emphasis be directed to AC Electrical Machine Winding
The device of temperature rise test, hardware design is also based on Alternating Current Power Supply, because of AC Electrical Machine Winding testing scheme and direct current generator winding
All there is essential difference in testing scheme, thus this method will very in power supply mode, component parameter selection, data processing method etc.
It is straight that difficult same satisfaction is often used in GB 9706.1-2007 and the GB 4793.1-2007 that medical electrical equipment field is related to
Flow winding temperature rise test.
The content of the invention
There is provided one kind is based on extrapolation and testing efficiency is high, ensure inspection in order to overcome the shortcomings of above technology by the present invention
Survey the medical electrical equipment direct current winding temperature rise test device and method of testing of the data precision.
The technical scheme that the present invention overcomes its technical problem to be used is：
A kind of medical electrical equipment direct current winding temperature rise test device, including：
Power module, for for system power supply, it to be connected with processor control；
Relay, its input is connected to the positive pole of power module, and its control end is connected to processor；
Power supply circuit and resistance measuring circuit, motor is connected to after the output end of the power supply circuit and resistance measuring circuit is in parallel
Direct current winding, the power supply circuit input is connected to an output end of relay, the input of the resistance measuring circuit
Another output end of relay is connected to, the other end of the direct current winding is connected to the negative pole of power module；
Data processing module, is connected to processor；
A/D converter, its input is connected to resistance measuring circuit, and its other end is connected to data processing module；
Temperature test module, for measuring room temperature, its control is connected to processor, and its output end is connected to data processing module；
And
Timing module, its control is connected to processor, and its output end is connected to data processing module.
Above-mentioned power module is adjustable DC power supply module.
Above-mentioned relay is solid-state relay.
A kind of medical electrical equipment direct current winding temperature rise method of testing, comprises the following steps：
A) power supply circuit and resistance measuring circuit are connected by the positive pole of relay and power module, the direct current winding one of motor
End is connected to the negative pole of power module, and its other end is connected with power supply circuit and resistance measuring circuit respectively, when experiment starts, profit
Initial room-temperature is recorded with temperature test module；
B) processor control relay control resistance measuring circuit is conducted with power module, and power supply circuit mutually breaks with power module
Open, resistance measuring circuit is tested and records the resistance value of direct current winding when experiment starts；
c）The connection of processor control relay off resistance measuring circuit and power module, makes power supply circuit and power module phase
Conducting, the rated voltage of the tested direct current winding of power supply circuit output；
D) after experiment is finished, processor control relay disconnects the connection of power supply circuit and power module, makes resistance measuring circuit
It is conducted with power module, as the 0s moment at the time of connection of relay disconnection power supply circuit and power module, and triggers meter
When module, temperature test module record experiment at the end of room temperature；
E) resistance measuring circuit closure after everyMoment tests the resistance value of direct current winding, resistance value is recorded every timeShi Tong
When the triggering timing module record correspondence moment；
F) data processing module is according to resistance valueWith the timeFunctional relation formula（）=
The resistance value of the direct current winding at t=0s moment is calculated, it is the resistance value at the end of experiment, whereinFor direct current winding
Area of dissipation,For winding coefficient specific heat,For the quality of winding,The constant for being 1-2 for span,For less than 0
Constant,For the constant more than 0；
G) according to formulaCalculate the temperature rise of direct current winding。
The beneficial effects of the invention are as follows.
Brief description of the drawings
Fig. 1 is the attachment structure figure of the direct current winding temperature rise test device of the present invention；
In figure, the power supply circuit 7. of 1. processor, 2. power module, 3. relay, 4. temperature test module, 5. timing module 6.
The data processing module of 8. direct current winding 9.A/D converters of resistance measuring circuit 10..
Embodiment
1 the present invention will be further described below in conjunction with the accompanying drawings.
A kind of medical electrical equipment direct current winding temperature rise test device, including：Power module 2, for for system power supply, its
It is connected with the control of processor 1；Relay 3, its input is connected to the positive pole of power module 2, and its control end is connected to processor
1；Motor is connected to after the output end of power supply circuit 6 and resistance measuring circuit 7, power supply circuit 6 and resistance measuring circuit 7 is in parallel
Direct current winding 8, the input of power supply circuit 6 is connected to an output end of relay 3, and the input of resistance measuring circuit 7 is connected to
Another output end of relay 3, the other end of direct current winding 8 is connected to the negative pole of power module 2；Data processing module 10, even
It is connected to processor 1；A/D converter 9, its input is connected to resistance measuring circuit 7, and its other end is connected to data processing module
10；Temperature test module 4, for measuring room temperature, its control is connected to processor 1, and its output end is connected to data processing module
10；And timing module 5, its control is connected to processor 1, and its output end is connected to data processing module 10.When experiment starts
Initial temperature is recorded by temperature test module 4, by the closed resistance measuring circuit 7 of 1 control relay of processor 3, record experiment
Direct current winding resistance during beginning, then by the off resistance measuring circuit 7 of 1 control relay of processor 3, closure power supply electricity 6
Road, and make the rated voltage of the tested direct current winding 8 of the output of power supply circuit 6, loading experiment is carried out as desired, and experiment terminates follow-up
Electrical equipment 3 is again off power supply circuit 6, closed resistance measuring circuit 7, the room temperature at the end of the record experiment of temperature test module 4,
And triggering timing module 5, after the resistance value of the timing direct current winding 8 at each moment is converted by A/D converter 9A/D, and its is right
Information is aggregated into data processing module 10 together at the time of answering, and data processing module 10 calculates the resistance value at the end of experiment, may finally facilitate according to formulaCalculate the temperature rise of direct current winding 8。
Further, power module 2 is adjustable DC power supply module, the electric current of convenient adjustment matching.Relay can be adopted
With solid-state relay, solid-state relay is noncontacting switch, and switch speed is fast, and stability is high, and impedance influences are small, substantially increase
Measurement accuracy.
A kind of medical electrical equipment direct current winding temperature rise method of testing, comprises the following steps：
A) power supply circuit 6 and resistance measuring circuit 7 are connected by relay 3 with the positive pole of power module 2, the direct current of motor around
8 one end of group are connected to the negative pole of power module 2, and its other end is connected with power supply circuit 6 and resistance measuring circuit 7 respectively, tests
During beginning, initial room-temperature is recorded using temperature test module 4；
B) control relay 3 of processor 1 control resistance measuring circuit 7 is conducted with power module 2, power supply circuit 6 and power supply mould
Block 2 mutually disconnects, and resistance measuring circuit 7 is tested and records the resistance value of the direct current winding 8 when experiment starts；
c）The off resistance measuring circuit 7 of 1 control relay of processor 3 and the connection of power module 2, make power supply circuit 6 and power supply
Module 2 is conducted, the rated voltage of the tested direct current winding of the output of power supply circuit 6；
D) after experiment is finished, the control relay 3 of processor 1 disconnects the connection of power supply circuit 6 and power module 2, makes resistance measurement
Circuit 7 is conducted with power module 2, as the 0s moment at the time of connection of relay disconnection power supply circuit 6 and power module 2,
And triggering timing module 5, the room temperature at the end of the record experiment of temperature test module 4；
E) resistance measuring circuit 7 close after everyThe resistance value of moment test direct current winding 8, resistance value is recorded every timeWhen
Triggering timing module 5 records the correspondence moment simultaneously；
F) data processing module 10 is according to resistance valueWith the timeFunctional relation formula（）=
The resistance value of the direct current winding 8 at t=0s moment is calculated, it is the resistance value at the end of experiment, whereinFor direct current winding 8
Area of dissipation,For winding coefficient specific heat,For the quality of winding,The constant for being 1-2 for span,For less than 0
Constant,For the constant more than 0.
G) according to formulaCalculate the temperature rise of direct current winding 8。
By the conducting of Control resistance measuring circuit 7 or power supply circuit 6 and power module 2, automation is realized
Measure, record and calculate, instead of manual measurement record, testing efficiency is high, is effectively reduced human error, it is ensured that detection data
The degree of accuracy.Can as needed free setting measurement interval, record number of times, it is adaptable to different testing requirements, it is reliable and practical, easily
In popularization, the supervision quality that may advantageously facilitate medical instruments field is improved.
Claims (4)
1. a kind of medical electrical equipment direct current winding temperature rise test device, it is characterised in that including：
Power module（2）, for for system power supply, itself and processor（1）Control connection；
Relay（3）, its input is connected to power module（2）Positive pole, its control end is connected to processor（1）；
Power supply circuit（6）And resistance measuring circuit（7）, the power supply circuit（6）And resistance measuring circuit（7）Output end it is in parallel
The direct current winding of motor is connected to afterwards（8）, the power supply circuit（6）Input is connected to relay（3）An output end, it is described
Resistance measuring circuit（7）Input be connected to relay（3）Another output end, the direct current winding（8）The other end connect
It is connected to power module（2）Negative pole；
Data processing module（10）, it is connected to processor（1）；
A/D converter（9）, its input is connected to resistance measuring circuit（7）, its other end is connected to data processing module
（10）；
Temperature test module（4）, for measuring room temperature, its control is connected to processor（1）, its output end is connected to data processing
Module（10）；And
Timing module（5）, its control is connected to processor（1）, its output end is connected to data processing module（10）.
2. medical electrical equipment direct current winding temperature rise test device according to claim 1, it is characterised in that：The power supply
Module（2）For adjustable DC power supply module.
3. medical electrical equipment direct current winding temperature rise test device according to claim 1, it is characterised in that：The relay
Device is solid-state relay.
4. a kind of medical electrical equipment direct current winding temperature rise method of testing, it is characterised in that comprise the following steps：
A) power supply circuit（6）And resistance measuring circuit（7）Pass through relay（3）With power module（2）Positive pole connection, motor
Direct current winding（8）One end is connected to power module（2）Negative pole, its other end respectively with power supply circuit（6）And resistance measurement
Circuit（7）It is connected, when experiment starts, utilizes temperature test module（4）Record initial room-temperature；
B) processor（1）Control relay（3）Control resistance measuring circuit（7）With power module（2）It is conducted, power supply circuit
（6）With power module（2）Mutually disconnect, resistance measuring circuit（7）Test and record direct current winding when experiment starts（8）Resistance
Value；
c）Processor（1）Control relay（3）Off resistance measuring circuit（7）With power module（2）Connection, make power supply circuit
（6）With power module（2）It is conducted, power supply circuit（6）The rated voltage of the tested direct current winding of output；
D) after experiment is finished, processor（1）Control relay（3）Disconnect power supply circuit（6）With power module（2）Connection, make
Resistance measuring circuit（7）With power module（2）It is conducted, relay disconnects power supply circuit（6）With power module（2）Connection
Moment is as the 0s moment, and triggering timing module（5）, temperature test module（4）Room temperature at the end of record experiment；
E) resistance measuring circuit（7）After closure everyMoment tests direct current winding（8）Resistance value, resistance value is recorded every timeWhen simultaneously triggering timing module（5）The record correspondence moment；
F) data processing module（10）According to resistance valueWith the timeFunctional relation formula r（t）=
Calculate the direct current winding at t=0s moment（8）Resistance value, its be experiment at the end of resistance value, whereinFor direct current winding
（8）Area of dissipation,For winding coefficient specific heat,For the quality of winding,The constant for being 1-2 for span,To be small
In 0 constant,For the constant more than 0；
G) according to formulaCalculate direct current winding（8）Temperature rise.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467574.3A CN107255528A (en) | 2017-06-20 | 2017-06-20 | A kind of medical electrical equipment direct current winding temperature rise test device and method of testing |
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|---|---|---|---|
| CN201710467574.3A CN107255528A (en) | 2017-06-20 | 2017-06-20 | A kind of medical electrical equipment direct current winding temperature rise test device and method of testing |
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Family
ID=60023255
Family Applications (1)
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|---|---|---|---|
| CN201710467574.3A Pending CN107255528A (en) | 2017-06-20 | 2017-06-20 | A kind of medical electrical equipment direct current winding temperature rise test device and method of testing |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596494A (en) * | 2019-09-25 | 2019-12-20 | 中国标准化研究院 | Electric appliance safety automatic detection device and detection method |
| CN111398684A (en) * | 2020-04-30 | 2020-07-10 | 广东海悟科技有限公司 | Test device for motor winding temperature rise based on resistance method |
| CN112946367A (en) * | 2021-01-21 | 2021-06-11 | 威凯检测技术有限公司 | Winding temperature rise test method capable of rapidly measuring winding thermal state resistance value |
| CN113009234A (en) * | 2021-02-23 | 2021-06-22 | 方圆广电检验检测股份有限公司 | Automatic winding resistance measuring system and measuring method thereof |
| CN114113836A (en) * | 2021-11-15 | 2022-03-01 | 中煤科工集团沈阳研究院有限公司 | Temperature rise experiment device and method for isolation transformer |
| CN115308551A (en) * | 2022-08-22 | 2022-11-08 | 中车永济电机有限公司 | Test evaluation method for insulation of train traction motor stator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2906631Y (en) * | 2005-12-22 | 2007-05-30 | 上海理工大学 | Intelligent leakage current automatic test device for medical electrical equipment |
| CN203012095U (en) * | 2012-11-15 | 2013-06-19 | 中国电力科学研究院 | Overall performance detecting system for magnetic latching relay |
| CN104198086A (en) * | 2014-08-22 | 2014-12-10 | 美的集团股份有限公司 | Winding temperature rise test method and device |
| CN104483041A (en) * | 2014-12-25 | 2015-04-01 | 珠海格力电器股份有限公司 | Temperature rise measuring method and device for coil winding |
| CN105699897A (en) * | 2016-03-31 | 2016-06-22 | 山东省计量科学研究院 | Motor rotation blockage winding measurement device |
| CN105988052A (en) * | 2015-10-23 | 2016-10-05 | 安徽中认倍佳科技有限公司 | Household electric appliance motor winding temperature rise on-machine test device and method |
| US9568704B1 (en) * | 2015-08-17 | 2017-02-14 | Apple Inc. | Temperature based control of voice coil motor |
-
2017
- 2017-06-20 CN CN201710467574.3A patent/CN107255528A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2906631Y (en) * | 2005-12-22 | 2007-05-30 | 上海理工大学 | Intelligent leakage current automatic test device for medical electrical equipment |
| CN203012095U (en) * | 2012-11-15 | 2013-06-19 | 中国电力科学研究院 | Overall performance detecting system for magnetic latching relay |
| CN104198086A (en) * | 2014-08-22 | 2014-12-10 | 美的集团股份有限公司 | Winding temperature rise test method and device |
| CN104483041A (en) * | 2014-12-25 | 2015-04-01 | 珠海格力电器股份有限公司 | Temperature rise measuring method and device for coil winding |
| US9568704B1 (en) * | 2015-08-17 | 2017-02-14 | Apple Inc. | Temperature based control of voice coil motor |
| CN105988052A (en) * | 2015-10-23 | 2016-10-05 | 安徽中认倍佳科技有限公司 | Household electric appliance motor winding temperature rise on-machine test device and method |
| CN105699897A (en) * | 2016-03-31 | 2016-06-22 | 山东省计量科学研究院 | Motor rotation blockage winding measurement device |
Non-Patent Citations (1)
| Title |
|---|
| 周文军 主编: "《单片机仿真及制作项目教程-基于Proteus ISIS》", 30 April 2015 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596494A (en) * | 2019-09-25 | 2019-12-20 | 中国标准化研究院 | Electric appliance safety automatic detection device and detection method |
| CN111398684A (en) * | 2020-04-30 | 2020-07-10 | 广东海悟科技有限公司 | Test device for motor winding temperature rise based on resistance method |
| CN112946367A (en) * | 2021-01-21 | 2021-06-11 | 威凯检测技术有限公司 | Winding temperature rise test method capable of rapidly measuring winding thermal state resistance value |
| CN112946367B (en) * | 2021-01-21 | 2023-09-12 | 威凯检测技术有限公司 | Winding temperature rise test method capable of rapidly measuring thermal state resistance value of winding |
| CN113009234A (en) * | 2021-02-23 | 2021-06-22 | 方圆广电检验检测股份有限公司 | Automatic winding resistance measuring system and measuring method thereof |
| CN114113836A (en) * | 2021-11-15 | 2022-03-01 | 中煤科工集团沈阳研究院有限公司 | Temperature rise experiment device and method for isolation transformer |
| CN114113836B (en) * | 2021-11-15 | 2023-10-27 | 中煤科工集团沈阳研究院有限公司 | Temperature rise experimental device and method for isolation transformer |
| CN115308551A (en) * | 2022-08-22 | 2022-11-08 | 中车永济电机有限公司 | Test evaluation method for insulation of train traction motor stator |
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Application publication date: 20171017 |