CN109827672B - Motor temperature change testing arrangement of vehicle air conditioner air-blower - Google Patents
Motor temperature change testing arrangement of vehicle air conditioner air-blower Download PDFInfo
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- CN109827672B CN109827672B CN201910208095.9A CN201910208095A CN109827672B CN 109827672 B CN109827672 B CN 109827672B CN 201910208095 A CN201910208095 A CN 201910208095A CN 109827672 B CN109827672 B CN 109827672B
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- 238000012545 processing Methods 0.000 claims abstract description 16
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- 230000007613 environmental effect Effects 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000013500 data storage Methods 0.000 claims description 6
- 239000003570 air Substances 0.000 description 96
- 238000004891 communication Methods 0.000 description 8
- 238000004378 air conditioning Methods 0.000 description 6
- 238000007664 blowing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- 238000010257 thawing Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The motor temperature change testing device of the automobile air conditioner blower comprises a working condition simulating part, a wind tunnel testing part and a data processing control part, wherein the wind tunnel testing part and the data processing control part are internally provided with the automobile air conditioner blower to be tested, the working condition simulating part is used for simulating the environment temperature of the actual working condition of the automobile air conditioner blower, the wind tunnel testing part is used for simulating the environment wind pressure of the actual working condition of the automobile air conditioner blower, the data processing control part is connected with a data acquisition unit, a data operation unit, a data judgment unit, a data alarm unit, a first temperature sensor and a second temperature sensor which are connected with the data acquisition unit, and the first temperature sensor and the second temperature sensor are respectively arranged on a blower motor, wherein the first temperature sensor is arranged at an input end, and the second temperature sensor is arranged at an output.
Description
Technical Field
The invention belongs to the field of automobiles, and particularly relates to a motor temperature change testing device of an automobile air conditioner blower.
Background
At present, no professional measuring device exists for the temperature rise condition of the motor of the automobile air conditioner blower, most of temperature rise tests on the motor of the automobile air conditioner blower are only carried out on the motor independently, and the motor is not made into a blower assembly for testing. The problem of separately testing the temperature rise of the motor is as follows: because the motor installed on the blower is short of the shell and the impeller installed on the blower, the heat dissipation effect of the motor is good, the load is low, and the temperature rise condition of the air conditioner of the motor in the blower when the actual automobile air conditioner is started cannot be accurately simulated in the test process. In addition, on the temperature condition of the test, the test can be generally carried out only by adopting the current room temperature, the weather influence is large, the temperature cannot be kept constant, and the high-temperature working condition brought to the blower motor under the actual operation condition in the automobile cabin cannot be simulated. On the condition of tested environmental wind pressure, the independent motor test has no way to simulate the environmental wind pressure of the air blower in the actual running state. In the aspect of data acquisition, the temperature change of the blower motor can be measured only at a single time, automatic continuous measurement and data recording cannot be carried out, and an alarm cannot be given when the temperature exceeds a limit value, so that the experiment has potential safety hazards. Because there is not comparatively accurate testing arrangement, the quality of air-blower motor is difficult to guarantee, can directly influence driving safety in the middle of the reality.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide an apparatus for testing a temperature change condition of a blower motor of an air conditioner blower for a vehicle, the blower motor having an input terminal and an output terminal.
The invention provides a motor temperature change testing device of an automobile air conditioner blower, which is characterized by comprising the following components: the working condition simulation part is a closed space and is used for simulating the environment temperature of the automobile air conditioner blower during actual working, and the environment temperature range is-20 ℃ to 100 ℃; the wind tunnel testing part is positioned in the working condition simulation part, is used for setting the environmental wind pressure of the automobile air conditioner blower during actual working, is a U-shaped pipeline positioned in a vertical plane, and is arranged in the wind tunnel testing part; the data processing control part comprises a data acquisition unit, a data operation unit, a data judgment unit, a data alarm unit, a first temperature sensor and a second temperature sensor which are connected with the data acquisition unit, the first temperature sensor and the second temperature sensor are respectively arranged on the blower motor, the first temperature sensor is arranged at the input end, the second temperature sensor is arranged at the output end, and when the blower motor runs, the data acquisition unit acquires first temperature data of the input end in real time through the first temperature sensor; the data acquisition unit acquires second temperature data of the output end in real time through a second temperature sensor, the data operation unit obtains a first temperature variation in preset time according to the first temperature data, the data operation unit obtains a second temperature variation in preset time according to the second temperature data, a first temperature threshold, a second temperature threshold, a first temperature change threshold and a second temperature change threshold are set in the data judgment unit, and when the first temperature data is greater than the first temperature threshold or the second temperature data is greater than the second temperature threshold, the data alarm unit gives an alarm; and when the first temperature variation is larger than the first temperature variation threshold or the second temperature variation is larger than the second temperature variation threshold, the data alarm unit gives an alarm.
In the motor temperature rise testing device of the blower of the automobile air conditioner, the motor temperature rise testing device can also have the following characteristics: the wind tunnel testing part comprises a first air inlet, a first air outlet and a second air outlet, the second air outlet is located below the first air outlet, and simulated environment wind pressure is set by controlling the opening and closing conditions of the first air outlet and the second air outlet.
In the motor temperature rise testing device of the blower of the automobile air conditioner, the motor temperature rise testing device can also have the following characteristics: wherein the predetermined time is 10 seconds to 20 seconds.
In the motor temperature rise testing device of the blower of the automobile air conditioner, the motor temperature rise testing device can also have the following characteristics: the data processing control part comprises a data storage unit and a data retrieval unit which are connected with each other, the data retrieval unit is connected with the data acquisition unit, a temperature data conversion table is stored in the data storage unit, the data retrieval unit obtains a first temperature value through the temperature data conversion table by utilizing first temperature data, and the data retrieval unit obtains a second temperature value through the temperature data conversion table by utilizing second temperature data.
Action and Effect of the invention
The motor temperature change testing device of the automobile air conditioner blower comprises a working condition simulating part, a wind tunnel testing part and a data processing control part, wherein the wind tunnel testing part and the data processing control part are internally provided with the automobile air conditioner blower to be tested, the working condition simulating part is used for simulating the environment temperature of the actual working condition of the automobile air conditioner blower, the wind tunnel testing part is used for simulating the environment wind pressure of the actual working condition of the automobile air conditioner blower, the data processing control part is connected with a data acquisition unit, a data operation unit, a data judgment unit, a data alarm unit, a first temperature sensor and a second temperature sensor which are connected with the data acquisition unit, and the first temperature sensor and the second temperature sensor are respectively arranged on a blower motor, wherein the first temperature sensor is arranged at an input end, and the second temperature sensor is arranged at. When the blower motor runs, the data acquisition unit acquires first temperature data of the input end in real time through the first temperature sensor; the data acquisition unit acquires second temperature data of the output end in real time through a second temperature sensor, the data operation unit obtains a first temperature variation in preset time according to the first temperature data, the data operation unit obtains a second temperature variation in preset time according to the second temperature data, a first temperature threshold, a second temperature threshold, a first temperature change threshold and a second temperature change threshold are set in the data judgment unit, and when the first temperature data is greater than the first temperature threshold or the second temperature data is greater than the second temperature threshold, the data alarm unit gives an alarm; and when the first temperature variation is larger than the first temperature variation threshold or the second temperature variation is larger than the second temperature variation threshold, the data alarm unit gives an alarm. Therefore, the motor temperature change testing device of the automobile air conditioner blower can test the temperature change condition of the blower motor in the automobile air conditioner blower assembly, can simulate the environmental temperature and the environmental wind pressure under the actual working condition of the automobile air conditioner blower assembly, and can alarm the abnormal temperature change condition of the automobile air conditioner blower, so that the data obtained by testing the blower motor is more accurate than the data obtained by the conventional testing method.
Drawings
FIG. 1 is a schematic view of a motor temperature variation testing device of an air conditioner blower of an automobile in an embodiment of the invention;
FIG. 2 is a schematic view of an automotive air conditioning blower tested in an embodiment of the present invention; and
fig. 3 is a schematic diagram of a data processing control section in an embodiment of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the following embodiments specifically describe the motor temperature variation testing device of the air blower of the automobile air conditioner in combination with the accompanying drawings.
As shown in fig. 1, a motor temperature variation testing device 100 of an automotive air conditioning blower is used for testing the temperature variation of a blower motor 31 of an automotive air conditioning blower 30 shown in fig. 2, and comprises a working condition simulation part 10, a wind tunnel testing part 20 and a data processing control part 40.
The working condition simulation part 10 is a closed space and is used for simulating the environment temperature of the automobile air conditioner blower 30 during actual working, and comprises a heat insulation isolation plate 11 and an environment air conditioner 12.
Operating mode simulation portion 10 is enclosed by heat preservation division board 11, and heat preservation division board 11 is made by insulation material for avoid operating mode simulation portion 10 and external environment's heat exchange and then make operating mode simulation portion 10 inside keep constant temperature, install simulation window 111 in the predetermined height department of operating mode simulation portion 10 inner wall. In the present embodiment, the operation condition simulating unit 10 is a closed rectangular space. The material of the thermal insulation board 11 is preferably a polyurethane foam board. The material of the simulation window 111 is preferably organic glass, and the installation predetermined height of the simulation window 111 is 1.5 m.
The environment air conditioner 12 is installed inside the working condition simulation part 10 and used for simulating the environment temperature of the actual working condition of the automobile air conditioner blower 30, and the adjusting range of the environment air conditioner 12 is-20 ℃ to 100 ℃. In this embodiment, the preferred conditioning range for the ambient air conditioner 12 is-10 ℃ to 50 ℃;
and the wind tunnel testing part 20 is positioned in the working condition simulating part 10 and is used for setting the environmental wind pressure of the automobile air conditioner blower 30 during actual working. The wind tunnel testing part 20 is a pipeline with a circular U-shaped cross section, and is positioned in a vertical plane inside the working condition simulation part 20, and two ends of the wind tunnel testing part 20 are arranged upwards. The non-straight pipe structure for simulating the automobile air conditioning box comprises a first air inlet 23, a first air outlet 21, a second air outlet 22, a first vertical section 24, a second vertical section 25 and a first horizontal section 26.
The air blower 30 is disposed inside the wind tunnel test unit 20, and as shown in fig. 2, the air blower 30 includes a blower motor 31, a housing 32, and a load impeller 33.
The blower motor 31 is installed inside the casing 32, and has an input end 311 and an output end 312, the load impeller 33 is a motor load of the blower motor 31, and the load impeller 33 is connected to the output end 312. Therefore, the temperature change condition of the blower motor 31 installed inside the casing 32 and connected to the load impeller 33 during operation is greatly different from that of the blower motor 31 operating independently.
When the blower motor 31 is in operation, the input end 311 and the output end 312 are places where energy is input and output, so the temperature change conditions of the input end 311 and the output end 312 are particularly remarkable, and the measurement of the temperature change conditions of the blower motor 31 of the automobile air conditioner blower 30 is the measurement of the temperature change conditions of the input end 311 and the output end 312.
The automotive air conditioning blower 30 is installed in the first vertical section 24, the load impeller 33 faces the first air inlet 23, and the rotation of the load impeller 33 enables the airflow in the wind tunnel test part 20 to generate directional flow, so that the simulated environmental wind pressure of the automotive air conditioning blower 30 is formed in the wind tunnel test part 20.
The first air inlet 23, the first air outlet 21 and the second air outlet 22 are rectangular. The first air inlet 23 and the first air outlet 21 are respectively located at two ends of the wind tunnel testing portion 20. The first air inlet 23 is located on the second vertical section 25, the first air outlet 21 is located on the first vertical section 24, and the second air outlet 22 is located on the first horizontal section 26. The diameter of the first vertical section 24 is 15cm-18cm, the diameter of the second vertical section 25 is 20cm-30cm, and the diameter of the first horizontal section 26 is 15cm-20 cm. The first air inlet 23 is 13cm 6cm to 18cm 10cm in size. The first air outlet 21 is 10cm x 6cm to 15cm x 10cm in size. The second outlet 22 is 8cm by 5cm to 13cm by 8 cm. The distance between the axes of the first vertical section 24 and the second vertical section 25 is 50cm-70 cm. The selection of the size is based on the simulation of the actual working condition of the automobile air conditioner blower 30, and the fitting degree of the environmental wind pressure of the wind tunnel testing part 20 and the actual working condition of the automobile air conditioner blower 30 is greatly improved. In the present embodiment, the diameter of the first vertical section 24 is preferably 17cm, the diameter of the second vertical section 25 is preferably 25cm, the diameter of the first horizontal section 26 is preferably 16cm, the size of the first air inlet 23 is preferably 15cm by 8cm, the size of the first air outlet 21 is preferably 13cm by 8cm, the size of the second air outlet is preferably 10cm by 6cm, and the axial distance between the first vertical section 24 and the second vertical section 25 is preferably 60 cm.
The first air inlet 23 is a normally open opening.
The mouth of the first air outlet 21 is connected to a first flat damper (not shown in the drawings) via a pivot, and the air output of the first air outlet 21 can be changed by adjusting the opening degree of the first flat damper (not shown in the drawings), so as to change the air pressure in the wind tunnel testing part 20.
The second outlet 22 is located below the first outlet 21, and the mouth of the second outlet 22 is connected to a second flat damper (not shown in the drawings) through a pivot, so that the wind pressure in the wind tunnel testing part 20 can be changed by adjusting the opening or closing of the second flat damper (not shown in the drawings).
The simulated environmental wind pressure is set by controlling the opening and closing conditions of the first outlet 21 and the second outlet 22. In this embodiment, according to the operation mode of the simulated automobile air conditioner, the wind tunnel test part 20 has 5 wind pressure conditions: (1) when the simulated automobile air conditioner is in a blowing mode, the first plate air door (not shown in the attached drawing) is opened for 100%, namely the first plate air door (not shown in the attached drawing) does not block the first air outlet 21; the second plate damper (not shown) is closed. (2) When the simulated automobile air conditioner is in a foot blowing mode, a first flat plate air door (not shown in the attached drawing) is in a closed state; the second plate damper (not shown) is open. (3) When the simulated automobile air conditioner is in the defrosting mode, namely the first air outlet 21 faces the simulated window 111 to achieve the purpose of simulating the defrosting of the automobile window, at this time, the opening degree of the corresponding first plate air door (not shown in the drawing) is 60% open, namely the blocking rate of the first plate air door (not shown in the drawing) to the first air outlet 21 is 40%; the second plate damper (not shown) is closed. (4) When the simulated automobile air conditioner is in the face-blowing and foot-blowing mode, the first flat plate air door (not shown in the attached drawings) is opened for 100%, namely the first flat plate air door (not shown in the attached drawings) does not block the first air outlet 21, and the second flat plate air door (not shown in the attached drawings) is in an open state. (5) When the simulated automobile air conditioner is in a foot-blowing defrosting mode, the opening degree of a first plate air door (not shown in the attached drawing) is 60% open, namely the blocking rate of the first plate air door (not shown in the attached drawing) to the first air outlet 21 is 40%; the second plate damper (not shown) is open.
The above-mentioned structure and corresponding functions of the device 100 for testing temperature rise of the blower motor 31 of the air conditioner blower 30 provide an environment extremely similar to the actual working condition for testing the temperature change of the blower motor 31 of the air conditioner blower 30, and provide a solid environment foundation for effectively testing the temperature change of the blower motor 31.
As shown in fig. 3, the data processing control unit 40 includes a control unit 403, a data acquisition unit 404, a data communication unit 405, a data storage unit 406, a data calculation unit 408, a data determination unit 410, a data alarm unit 407, a data search unit 409, a data display unit 411, a data output unit 412, and a first temperature sensor 41 and a second temperature sensor 42 connected to the data acquisition unit 404, respectively, which are connected to each other through the control unit 403. In the present embodiment, the first temperature sensor 41 and the second temperature sensor 42 are preferably PT100 temperature sensors. The rest of the data processing control part 40 except for the first temperature sensor 41 and the second temperature sensor 42 is integrated together and located outside the operating condition simulation part 10.
The first temperature sensor 41 and the second temperature sensor 42 are respectively arranged on the blower motor 30, the first temperature sensor 41 is arranged at the input end 311, the second temperature sensor 42 is arranged at the output end 312, and when the blower motor 31 runs, the data acquisition unit 404 acquires first temperature data of the input end 311 in real time through the first temperature sensor 41; the data acquisition unit 404 acquires second temperature data of the output end 312 in real time through the second temperature sensor 42, the first temperature data and the second temperature data are resistance values, and the data acquisition unit 404 transmits the first temperature data and the second temperature data to the data retrieval unit 409 through the data communication unit 405.
The data storage unit 406 stores a temperature data conversion table, the temperature data conversion table associates temperature data represented by a resistance value with corresponding temperature values one by one, the data retrieval unit 409 retrieves a first temperature value through the temperature data conversion table by using the first temperature data, and the data retrieval unit 409 retrieves a second temperature value through the temperature data conversion table by using the second temperature data.
The control unit 403 transmits the real-time first temperature value and the real-time second temperature value to the data display unit 411 through the data communication unit 405, the data display unit 411 has a display, and the data display unit 411 visualizes and displays the first temperature value and the second temperature value through the display. So that the relevant personnel can monitor at any time. In this embodiment, visualizing the first temperature value and the second temperature value means converting the current first temperature value and the current second temperature value into digital characters, and simultaneously converting the first temperature value and the second temperature value within 0.5 hour into two temperature-time relationship curves, where the abscissa unit of the temperature-time relationship curve is 10 seconds, and the ordinate unit is ℃.
The control unit 403 calculates two real-time first temperature data separated by a predetermined time length through the data operation unit 408, that is, the data operation unit 408 obtains a first temperature variation in a predetermined time according to two real-time first temperature values at different times, and the data operation unit 408 obtains a second temperature variation in a predetermined time according to two real-time second temperature values at different times. The predetermined time is 10 seconds to 20 seconds. In the present embodiment, the predetermined time is preferably 10 seconds.
The control unit 403 transmits the first temperature value and the second temperature value, the first temperature variation and the second temperature variation to the data output unit 412 through the data communication unit 405, and the data output unit converts the first temperature value and the second temperature value, and the first temperature variation and the second temperature variation into files of various formats to be output, such as a DB database format, an EXCEL file format, a TXT document format, and the like, so as to maintain the relevant temperature data in various electronic forms. In the present embodiment, the file output format is preferably an EXCEL file format.
A first temperature threshold, a second temperature threshold, a first temperature-change threshold and a second temperature-change threshold are set in the data judgment unit 410, the setting range of the first temperature threshold and the second temperature threshold is 100-120 ℃, the setting range of the first temperature-change threshold and the second temperature-change threshold is 5-10 ℃, the control unit 403 respectively transmits the first temperature value and the second temperature value to the data judgment unit 410 through the data communication unit 405, the data judgment unit 410 respectively compares the first temperature value with the first temperature threshold and compares the second temperature value with the second temperature threshold, and when the first temperature data is greater than the first temperature threshold or the second temperature data is greater than the second temperature threshold, the data judgment unit 410 generates an alarm trigger signal; the control unit 403 transmits the first temperature variation and the second temperature variation to the data determination unit 410 through the data communication unit 405, the data determination unit 410 compares the first temperature variation with a first temperature variation threshold, compares the second temperature variation with a second temperature variation threshold, and the data determination unit 410 generates an alarm trigger signal when the first temperature variation is greater than the first temperature variation threshold or the second temperature variation is greater than the second temperature variation threshold. In this embodiment, the first temperature threshold and the second temperature threshold are preferably set to 100 ℃, and the first temperature-change threshold and the second temperature-change threshold are preferably set to 5 ℃.
The data alarm unit 407 has an alarm horn (not shown in the drawings), the control unit 403 transmits an alarm trigger signal to the data alarm unit 407 through the data communication unit 405, and the data alarm unit 407 makes an alarm sound through the alarm horn (not shown in the drawings).
The control unit 403 transmits the alarm trigger signal to the data display unit 411 through the data communication unit 405, and the display backlight of the data display unit 411 changes to a red flashing state to warn.
Effects and effects of the embodiments
According to the motor temperature change testing device of the automobile air conditioner blower related to this embodiment, including the operating mode simulation portion, inside is provided with the wind tunnel test portion and the data processing control portion of the automobile air conditioner blower that await measuring, the operating mode simulation portion is used for simulating the ambient temperature of the operating mode of automobile air conditioner blower, the wind tunnel test portion is used for simulating the ambient wind pressure of the operating mode of automobile air conditioner blower, data processing control portion interconnect's data acquisition unit, data arithmetic element, data judgement unit, data alarm unit and the first temperature sensor and the second temperature sensor who are connected with data acquisition unit, first temperature sensor and second temperature sensor set up respectively on the blower motor, wherein, first temperature sensor sets up at the input, the second temperature sensor sets up at the output. When the blower motor runs, the data acquisition unit acquires first temperature data of the input end in real time through the first temperature sensor; the data acquisition unit acquires second temperature data of the output end in real time through a second temperature sensor, the data operation unit obtains a first temperature variation in preset time according to the first temperature data, the data operation unit obtains a second temperature variation in preset time according to the second temperature data, a first temperature threshold, a second temperature threshold, a first temperature change threshold and a second temperature change threshold are set in the data judgment unit, and when the first temperature data is greater than the first temperature threshold or the second temperature data is greater than the second temperature threshold, the data alarm unit gives an alarm; and when the first temperature variation is larger than the first temperature variation threshold or the second temperature variation is larger than the second temperature variation threshold, the data alarm unit gives an alarm. Therefore, the motor temperature change testing device of the automobile air conditioner blower in the embodiment can not only test the temperature change condition of the blower motor in the automobile air conditioner blower assembly, but also simulate the environmental temperature and the environmental wind pressure under the actual working condition of the automobile air conditioner blower assembly, and can also alarm the abnormal temperature change condition of the automobile air conditioner blower, so that the data obtained by testing the blower motor is more accurate than the data obtained by the conventional testing method.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
Claims (4)
1. The utility model provides a motor temperature change testing arrangement of vehicle air conditioner air-blower for the temperature change condition to the air-blower motor of vehicle air conditioner air-blower tests, the air-blower motor has input and output, its characterized in that includes:
the working condition simulation part is a closed space and is used for simulating the environment temperature of the automobile air conditioner blower during actual working, and the environment temperature range is-20 ℃ to 100 ℃;
the wind tunnel testing part is positioned in the working condition simulation part and used for setting the environmental wind pressure of the automobile air conditioner blower during actual working, the wind tunnel testing part is a U-shaped pipeline with a circular cross section, the wind tunnel testing part is positioned in a vertical plane in the working condition simulation part, two ends of the wind tunnel testing part are arranged upwards, and the automobile air conditioner blower is arranged in the wind tunnel testing part; and
the data processing control part comprises a data acquisition unit, a data operation unit, a data judgment unit, a data alarm unit and a first temperature sensor and a second temperature sensor which are connected with the data acquisition unit respectively, the first temperature sensor and the second temperature sensor are respectively arranged at the input end and the output end,
wherein the wind tunnel testing part is provided with a first vertical section, a second vertical section and a first horizontal section, the diameter of the first vertical section is 15cm-18cm, the diameter of the second vertical section is 20cm-30cm, the diameter of the first horizontal section is 15cm-20cm,
when the blower motor runs, the data acquisition unit acquires first temperature data of the input end in real time through the first temperature sensor; the data acquisition unit acquires second temperature data of the output end in real time through the second temperature sensor,
the data operation unit obtains a first temperature variation in a predetermined time according to the first temperature data, the data operation unit obtains a second temperature variation in the predetermined time according to the second temperature data,
a first temperature threshold, a second temperature threshold, a first temperature change threshold and a second temperature change threshold are set in the data judgment unit,
when the first temperature data is larger than the first temperature threshold or the second temperature data is larger than the second temperature threshold, the data alarm unit gives an alarm sound; and when the first temperature variation is larger than the first temperature variation threshold or the second temperature variation is larger than the second temperature variation threshold, the data alarm unit sends out an alarm sound.
2. The motor temperature variation testing device of the air blower of the air conditioner for the vehicle as set forth in claim 1, wherein:
wherein, wind-tunnel test portion includes first income wind gap, first air outlet and second air outlet, first income wind gap with first air outlet is located respectively the both ends of wind-tunnel test portion, the second air outlet is located on the first horizontal segment, through control first air outlet with the switching condition of second air outlet sets for the environment wind pressure.
3. The motor temperature variation testing device of the air blower of the air conditioner for the vehicle as set forth in claim 1, wherein:
wherein the predetermined time is 10 seconds to 20 seconds.
4. The motor temperature variation testing device of the air blower of the air conditioner for the vehicle as set forth in claim 1, wherein:
the data processing control part comprises a data storage unit and a data retrieval unit which are connected with each other, the data retrieval unit is connected with the data acquisition unit, a temperature data conversion table is stored in the data storage unit, the data retrieval unit obtains a first temperature value through the temperature data conversion table by using the first temperature data, and the data retrieval unit obtains a second temperature value through the temperature data conversion table by using the second temperature data.
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| CN201910208095.9A CN109827672B (en) | 2019-03-19 | 2019-03-19 | Motor temperature change testing arrangement of vehicle air conditioner air-blower |
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| CN201910208095.9A CN109827672B (en) | 2019-03-19 | 2019-03-19 | Motor temperature change testing arrangement of vehicle air conditioner air-blower |
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| 冷凝风机电机温升测试分析;邹建平 等;《科技传播》;20120630(第12期);68-69 * |
| 基于Modbus RTU 的虚拟仪器风洞电机温度监控系统开发;杜洪亮 等;《计算机测量与控制》;20150430;第23卷(第4期);76-79、59 * |
| 行车空调热工性能测试环境室设计与软件开发;刘颖 等;《流体机械》;20070831;第35卷(第8期);1161-1164 * |
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