CN109827672A - A kind of motor temperature variation test device of blower for vehicle air conditioning - Google Patents
A kind of motor temperature variation test device of blower for vehicle air conditioning Download PDFInfo
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- CN109827672A CN109827672A CN201910208095.9A CN201910208095A CN109827672A CN 109827672 A CN109827672 A CN 109827672A CN 201910208095 A CN201910208095 A CN 201910208095A CN 109827672 A CN109827672 A CN 109827672A
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- 238000012360 testing method Methods 0.000 title claims abstract description 63
- 238000004378 air conditioning Methods 0.000 title claims abstract description 53
- 238000012545 processing Methods 0.000 claims abstract description 14
- 238000004088 simulation Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000013500 data storage Methods 0.000 claims description 4
- 210000000352 storage cell Anatomy 0.000 claims description 4
- 238000004891 communication Methods 0.000 description 8
- 238000002955 isolation Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000010257 thawing Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 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
- 239000012774 insulation material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
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Abstract
A kind of motor temperature variation test device of blower for vehicle air conditioning involved according to the present invention, including Work condition analogue portion, it is internally provided with the wind tunnel test portion and data processing and control portion of blower for vehicle air conditioning to be tested, environment temperature of the Work condition analogue portion for the actual condition of simulated automotive air conditioner blower, environment wind pressure of the wind tunnel test portion for the actual condition of simulated automotive air conditioner blower, data processing and control portion data acquisition unit interconnected, Data Computation Unit, data determining unit, data alarm unit and the first temperature sensor and second temperature sensor being connect with data acquisition unit, first temperature sensor and second temperature sensor are separately positioned on blower motor, wherein, first temperature sensor is arranged in input terminal, second temperature sensor is arranged in output end.
Description
Technical field
The invention belongs to automotive fields, and in particular to a kind of motor temperature variation test device of blower for vehicle air conditioning.
Background technique
It is directed to measuring device of the temperature rise situation without more profession of blower for vehicle air conditioning motor at present, and most of right
In blower for vehicle air conditioning motor temperature rise test all individually tested just for motor, not by motor be made into blower assy into
Row test.Individually test the problems of motor temperature rise situation just: since separate electrical motor is compared with the motor being mounted on air blower
Lack the shell and impeller being mounted on air blower, therefore the heat dissipation effect of separate electrical motor is preferably and load is lower, is testing
It can not temperature rising situation of air-conditioning of the accurate simulation motor in air blower when practical air conditioning for automobiles is opened in journey.Except this it
Outside, in the temperature condition of test, it generally can only all be tested using current room temperature, be influenced by weather and temperature can not
Keep constant, also can not in simulated automotive cabin under practical operation situation to worst hot case brought by blower motor.It is surveying
On the ambient wind press strip part of examination, individual electromechanical testing also has no idea to simulate ambient wind of the air blower under actual motion state
Pressure.In terms of data acquisition, the temperature change of blower motor is merely able to measure it in the single time, can not carried out certainly
The continuous measurement of dynamicization and data record, can not also alarm when temperature is more than limit value, so that experiment has safety hidden
Suffer from.Due to not accurate test device, the quality of blower motor is difficult to ensure, will have a direct impact in reality
Traffic safety.
Summary of the invention
The present invention is to carry out to solve the above-mentioned problems, and it is an object of the present invention to provide a kind of for blower for vehicle air conditioning
Blower motor the device tested of temperature variations, blower motor has input terminal and output end.
The present invention provides a kind of motor temperatures of blower for vehicle air conditioning to change test device, has the feature that,
Include: Work condition analogue portion, is an enclosure space, for simulated automotive air conditioner blower in environment temperature in actual work, ring
Border temperature range is -20 DEG C to 100 DEG C；Wind tunnel test portion, wind tunnel test portion is located inside Work condition analogue portion, for setting automobile
Air conditioner blower is in environment wind pressure in actual work, for the " u "-shaped pipeline in perpendicular, blower for vehicle air conditioning setting
Inside wind tunnel test portion；And data processing and control portion, including data acquisition unit interconnected, Data Computation Unit,
Data determining unit, data alarm unit and the first temperature sensor and the second temperature sensing being connect with data acquisition unit
Device, the first temperature sensor and second temperature sensor are separately positioned on blower motor, wherein the first temperature sensor is set
It sets in input terminal, second temperature sensor setting is in output end, and when blower motor operation, data acquisition unit passes through first
Temperature sensor acquires the first temperature data of input terminal in real time；Data acquisition unit is acquired in real time by second temperature sensor
The second temperature data of output end, Data Computation Unit obtain the first temperature change in the predetermined time according to the first temperature data
Amount, Data Computation Unit obtain second temperature variable quantity in the predetermined time according to second temperature data, set in data determining unit
Surely there are the first temperature threshold, second temperature threshold value, the first warm variable threshold value and the second warm variable threshold value, when the first temperature data is greater than
When first temperature threshold or second temperature data are greater than second temperature threshold value, data alarm unit issues alarm；When the first temperature
When degree variable quantity is greater than the first warm variable threshold value or second temperature variable quantity greater than the second warm variable threshold value, data alarm unit sending report
Alert sound.
In blower for vehicle air conditioning motor temperature rise test device provided by the invention, it can also have the following features:
Wherein, wind tunnel test portion includes the first air intake vent, the first air outlet and the second air outlet, and the second air outlet is located at the first outlet air
Below mouthful, pass through the environment wind pressure of the opening and closing situation setting simulation of the first air outlet of control and the second air outlet.
In blower for vehicle air conditioning motor temperature rise test device provided by the invention, it can also have the following features:
Wherein, the predetermined time is -20 seconds 10 seconds.
In blower for vehicle air conditioning motor temperature rise test device provided by the invention, it can also have the following features:
Wherein, data processing and control portion includes data storage cell and data retrieval unit interconnected, data retrieval unit with
Data acquisition unit connects, and temperature data conversion table is stored in data store, and data retrieval unit utilizes the first temperature number
The first temperature value is obtained according to by temperature data conversion table, data retrieval unit is turned using second temperature data by temperature data
It changes table and obtains second temperature value.
The action and effect of invention
The motor temperature of related blower for vehicle air conditioning changes test device, including Work condition analogue according to the present invention
Portion, is internally provided with the wind tunnel test portion and data processing and control portion of blower for vehicle air conditioning to be tested, and Work condition analogue portion uses
In the environment temperature of the actual condition of simulated automotive air conditioner blower, wind tunnel test portion is used for the reality of simulated automotive air conditioner blower
The environment wind pressure of border operating condition, data processing and control portion data acquisition unit interconnected, Data Computation Unit, data judgement are single
Member, data alarm unit and the first temperature sensor and second temperature sensor being connect with data acquisition unit, the first temperature
Degree sensor and second temperature sensor are separately positioned on blower motor, wherein the setting of the first temperature sensor is inputting
End, second temperature sensor are arranged in output end.Because data acquisition unit passes through the first temperature when blower motor operation
Sensor acquires the first temperature data of input terminal in real time；Data acquisition unit acquires output by second temperature sensor in real time
The second temperature data at end, Data Computation Unit obtain the first temperature variation in the predetermined time according to the first temperature data, number
Second temperature variable quantity in the predetermined time is obtained according to second temperature data according to arithmetic element, and is set in data determining unit
One temperature threshold, second temperature threshold value, the first warm variable threshold value and the second warm variable threshold value, when the first temperature data is greater than the first temperature
When spending threshold value or second temperature data greater than second temperature threshold value, data alarm unit issues alarm；When the first temperature change
When amount is greater than the first warm variable threshold value or second temperature variable quantity greater than the second warm variable threshold value, data alarm unit issues alarm.
So the motor temperature variation test device of blower for vehicle air conditioning of the invention not only can be to blower for vehicle air conditioning assembly
In blower motor carry out the test that temperature becomes situation, and can environment under simulated automotive air conditioner blower assembly actual condition
Temperature and environment wind pressure can also become situation to the temperature of improper blower for vehicle air conditioning and alarm, so as to air blast
The obtained data of the more previous test method of machine electromechanical testing are more accurate.
Detailed description of the invention
Fig. 1 is the motor temperature variation test device schematic diagram of the blower for vehicle air conditioning in the embodiment of the present invention；
Fig. 2 is the blower for vehicle air conditioning schematic diagram tested in the embodiment of the present invention；And
Fig. 3 is the schematic diagram in data processing and control portion in the embodiment of the present invention.
Specific embodiment
It is real below in order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention
Example combination attached drawing is applied to be specifically addressed the motor temperature variation test device of blower for vehicle air conditioning of the invention.
As shown in Figure 1, a kind of motor temperature of blower for vehicle air conditioning changes test device 100, for as shown in Figure 2
The temperature variations of blower motor 31 of blower for vehicle air conditioning 30 tested, including Work condition analogue portion 10, wind-tunnel
Test department 20 and data processing and control portion 40.
Work condition analogue portion 10 is an enclosure space, for simulated automotive air conditioner blower 30 in environment temperature in actual work
Degree, including heat preservation isolation board 11 and environment air-conditioner 12.
Work condition analogue portion 10 is surrounded by heat preservation isolation board 11, and heat preservation isolation board 11 is made of thermal insulation material, for avoiding work
The heat exchange of condition simulation part 10 and external environment is so that keep constant temperature inside Work condition analogue portion 10, in Work condition analogue portion 10
The predetermined height of wall is equipped with simulation window 111.In the present embodiment, Work condition analogue portion 10 is a closed rectangular space.It protects
The material of warm isolation board 11 is preferably polyurethane foam board.The material of simulation window 111 is preferably organic glass, simulation window 111
Installing predetermined altitude is 1.5 meters.
Environment air-conditioner 12 is installed on inside Work condition analogue portion 10, the ring for 30 actual condition of simulated automotive air conditioner blower
Border temperature, the adjustable range of environment air-conditioner 12 are -20 DEG C to 100 DEG C.In the present embodiment, the preferred adjusting model of environment air-conditioner 12
Enclose is -10 DEG C to 50 DEG C；
Wind tunnel test portion 20 is located inside Work condition analogue portion 10, for setting blower for vehicle air conditioning 30 in real work
When environment wind pressure.Wind tunnel test portion 20 is that cross section is round " u "-shaped pipeline, and one inside Work condition analogue portion 20 is perpendicular
In the straight plane and both ends in wind tunnel test portion 20 are arranged upward.Non- straight tube for simulated automotive air-conditioning box constructs, including
First air intake vent 23, the first air outlet 21, the second air outlet 22, the first vertical section 24, the second vertical section 25 and first level
Section 26.
Blower for vehicle air conditioning 30 is arranged inside wind tunnel test portion 20, as shown in Fig. 2, blower for vehicle air conditioning 30 includes
Blower motor 31, shell 32 and load impeller 33.
Blower motor 31 is installed on inside shell 32, has input terminal 311 and output end 312, and load impeller 33 is drum
The motor load of blower motor 31, load impeller 33 are connect with output end 312.Therefore, loaded on 32 inside of shell and connection load
The warm change situation of the blower motor 31 of impeller 33 at runtime and the warm change situation of independently operated blower motor 31 are that have
A great difference.
When blower motor 31 is run, due to the place that input terminal 311 and output end 312 are energy input output, because
The warm change situation of this input terminal 311 and output end 312 is particularly significant, to the temperature of the blower motor 31 of blower for vehicle air conditioning 30
The measurement of degree situation of change is that the measurement of the temperature variations to input terminal 311 Yu output end 312.
Blower for vehicle air conditioning 30 is mounted in the first vertical section 24 and load impeller 33 is towards the first air intake vent 23, load
The rotation of impeller 33 is so that the air-flow in wind tunnel test portion 20 generates directed flow and then forms automobile in wind tunnel test portion 20
The simulated environment wind pressure of air conditioner blower 30.
First air intake vent 23, the first air outlet 21 and the second air outlet 22 are rectangle.First air intake vent 23 goes out with first
Air port 21 is located at the both ends in wind tunnel test portion 20.First air intake vent 23 is located in the second vertical section 25, the first air outlet 21
In the first vertical section 24, the second air outlet 22 is located in first horizontal segment 26.First vertical section, 24 diameter is 15cm-
18cm, 25 diameter of the second vertical section are 20cm-30cm, and 26 diameter of first horizontal segment is 15cm-20cm.First air intake vent, 23 size
For 13cm*6cm to 18cm*10cm.First air outlet 21 is having a size of 10cm*6cm to 15cm*10cm.Second air outlet, 22 size
For 8cm*5cm to 13cm*8cm.The axis spacing of first vertical section 24 and the second vertical section 25 is 50cm-70cm.This size
Simulation of the selection based on the actual condition to blower for vehicle air conditioning 30, greatly improve the environment wind pressure in wind tunnel test portion 20
With the fitting degree of the actual condition of blower for vehicle air conditioning 30.In the present embodiment, 24 diameter of the first vertical section is preferably
17cm, 25 diameter of the second vertical section are preferably 25cm, and 26 diameter of first horizontal segment is preferably 16cm, and 23 size of the first air intake vent is excellent
Select 15cm*8cm, 21 size of the first air outlet preferred 13cm*8cm, the second preferred 10cm*6cm of air outlet size, the first vertical section
24 and second vertical section 25 the preferred 60cm of axis spacing.
First air intake vent 23 is a normally opened opening.
The oral area of first air outlet 21 is pivotally connected the first plate air door (not marking on attached drawing), by adjusting first
The opening degree of plate air door (not marking on attached drawing) can change the air output of the first air outlet 21 so that wind tunnel test
Wind pressure in portion 20 changes.
Second air outlet 22 is located at the lower section of the first air outlet 21, and the oral area of the second air outlet 22 is pivotally connected second
Plate air door (does not mark) on attached drawing, by adjusting opening or closing and can making for the second plate air door (not marking on attached drawing)
Wind pressure in wind tunnel test portion 20 changes.
Pass through the environment wind pressure of the opening and closing situation of the first air outlet 21 of control and the second air outlet 22 setting simulation.In this reality
It applies in example, according to the operational mode of simulated automotive air-conditioning, there are 5 kinds of wind pressure situations in wind tunnel test portion 20: (1) when simulated automotive sky
It mediates when blowing surface model, the first plate air door (attached drawing does not mark) is 100% unlatching, i.e. the first plate air door (do not mark by attached drawing
The first air outlet 21 is not stopped out)；Second plate air door (attached drawing does not mark) is in off state.(2) work as simulated automotive
In when blowing foot mode, the first plate air door (attached drawing does not mark) is in off state air-conditioning；Second plate air door (do not mark by attached drawing
It out) is open state.(3) when simulated automotive air-conditioning is in defrosting mode, i.e., the first air outlet 21 is towards simulation window 111 to reach
It is modeled as automotive window defrosting, the opening degree of corresponding first plate air door (attached drawing does not mark) is 60% to open at this time, i.e., the
One plate air door (attached drawing does not mark) is 40% to the blocking rate of the first air outlet 21；Second plate air door (attached drawing does not mark) is
Closed state.(4) when simulated automotive air-conditioning, which is in the face of blowing, blows foot mode, the first plate air door (attached drawing does not mark) is 100%
It opens, i.e., the first plate air door (attached drawing does not mark) does not stop the first air outlet 21, and the second plate air door (do not mark by attached drawing
It out) is open state.(5) when simulated automotive air-conditioning, which is in, blows foot defrosting mode, the first plate air door (attached drawing does not mark)
Opening degree is 60% unlatching, i.e. the first plate air door (attached drawing does not mark) is 40% to the blocking rate of the first air outlet 21；The
Two plate air doors (attached drawing does not mark) are open state.
The above-mentioned construction and corresponding function of blower for vehicle air conditioning motor temperature rise test device 100 are blower for vehicle air conditioning
The test of 30 31 temperature change of blower motor provides an environment extremely similar with actual condition, is blower motor
The validity test of 31 temperature changes provides a solid environmental basis.
As shown in figure 3, data processing and control portion 40 includes control unit 403, pass through the number interconnected of control unit 403
According to acquisition unit 404, data communication units 405, data storage cell 406, Data Computation Unit 408, data determining unit
410, data alarm unit 407, data retrieval unit 409, data display unit 411, data outputting unit 412 and and data
The first temperature sensor 41 and second temperature sensor 42 that acquisition unit 404 is separately connected.In the present embodiment, the first temperature
Sensor 41 and the preferred PT100 temperature sensor of second temperature sensor 42.Data are except the first temperature sensor 41 and the second temperature
It spends outside sensor 42, the rest part in data processing and control portion 40 integrates and is located at outside Work condition analogue portion 10.
First temperature sensor 41 is separately positioned on blower motor 30 with second temperature sensor 42, and the first temperature passes
The setting of sensor 41 is in input terminal 311, and the setting of second temperature sensor 42 is in output end 312, when blower motor 31 is run, number
Acquire the first temperature data of input terminal 311 in real time by the first temperature sensor 41 according to acquisition unit 404；Data acquisition unit
404 acquire the second temperature data of output end 312, the first temperature data and second temperature by second temperature sensor 42 in real time
Data are resistance value, and data acquisition unit 404 is passed the first temperature data and second temperature data by data communication units 405
It send to data retrieval unit 409.
It is stored with temperature data conversion table in data storage cell 406, temperature data conversion table will be indicated with resistance value
Temperature data is corresponded with corresponding temperature value, and data retrieval unit 409 is turned using the first temperature data by temperature data
It changes table to retrieve to obtain the first temperature value, data retrieval unit 409 is retrieved using second temperature data by temperature data conversion table
Obtain second temperature value.
Real-time first temperature value and second temperature value are sent to number by data communication units 405 by control unit 403
According to display unit 411, data display unit 411 has a display, and data display unit 411 is by the first temperature value and second temperature
Value visualizes and passes through display and presented.So that related personnel can monitor at any time.In the present embodiment, by the first temperature
Value and the visualization of second temperature value, which refer to, is converted to numerical character for current first temperature value and current second temperature value, simultaneously will
The first temperature value and second temperature value in 0.5 hour are separately converted to two Temperature-time relation curves, and Temperature-time closes
The abscissa unit for being curve is 10 seconds, and ordinate unit is DEG C.
Control unit 403 is by Data Computation Unit 408 to two real-time first temperature numbers for being separated by predetermined time length
According to being calculated, that is, Data Computation Unit 408 obtains in the predetermined time according to real-time first temperature value of two different times
One temperature variation, Data Computation Unit 408 are worth the in the predetermined time according to the real-time second temperature of two different times
Two temperature variations.Predetermined time is -20 seconds 10 seconds.In the present embodiment, the predetermined time is preferably 10 seconds.
Control unit 403 passes through data communication units 405 for the first temperature value and second temperature value, the first temperature variation
Data outputting unit 412 is sent to second temperature variable quantity, data outputting unit is by the first temperature value and second temperature value, and
The file that one temperature variation is converted into multiple format with second temperature variable quantity is exported, such as DB database format, EXCEL
File format and TXT document format etc., in order to keep correlated temperature data with various electronic forms.In the present embodiment,
File output format is preferably EXCEL file format.
The first temperature threshold, second temperature threshold value, the first warm variable threshold value and second are set in data determining unit 410
Warm variable threshold value, the first temperature threshold and second temperature threshold value setting range are 100 DEG C -120 DEG C, the first warm variable threshold value and second
Warm variable threshold value setting range is 5 DEG C -10 DEG C, and control unit 403 is by data communication units 405 respectively by the first temperature value and the
Two temperature values are sent to data determining unit 410, data determining unit 410 respectively by the first temperature value and the first temperature threshold into
Row compares, and second temperature value is compared with second temperature threshold value, when the first temperature data is greater than the first temperature threshold, or
When second temperature data are greater than second temperature threshold value, data determining unit 410 generates warning trigger signal；Control unit 403 is logical
It crosses data communication units 405 and the first temperature variation and second temperature variable quantity is sent to data determining unit 410 respectively, number
It is judged that the first temperature variation is compared by unit 410 with the first warm variable threshold value respectively, by second temperature variable quantity and the
Two warm variable threshold values are compared, when the first temperature variation is greater than the first warm variable threshold value or second temperature variable quantity is greater than the
When two warm variable threshold values, data determining unit 410 generates warning trigger signal.In the present embodiment, the first temperature threshold and second
Temperature threshold is preferably set to 100 DEG C, and the first warm variable threshold value and the second warm variable threshold value are preferably set to 5 DEG C.
Data alarm unit 407 has alarming horn (attached drawing does not mark), and control unit 403 passes through data communication units
Warning trigger signal is sent to data alarm unit 407 by 405, and data alarm unit 407 by alarming horn, (do not mark by attached drawing
Alarm is issued out).
Warning trigger signal is sent to data display unit 411 by data communication units 405 by control unit 403, number
It will become red flashing state according to the display background light of display unit 411 to warn.
The action and effect of embodiment
The motor temperature of the blower for vehicle air conditioning according to involved in the present embodiment changes test device, including Work condition analogue
Portion, is internally provided with the wind tunnel test portion and data processing and control portion of blower for vehicle air conditioning to be tested, and Work condition analogue portion uses
In the environment temperature of the actual condition of simulated automotive air conditioner blower, wind tunnel test portion is used for the reality of simulated automotive air conditioner blower
The environment wind pressure of border operating condition, data processing and control portion data acquisition unit interconnected, Data Computation Unit, data judgement are single
Member, data alarm unit and the first temperature sensor and second temperature sensor being connect with data acquisition unit, the first temperature
Degree sensor and second temperature sensor are separately positioned on blower motor, wherein the setting of the first temperature sensor is inputting
End, second temperature sensor are arranged in output end.Because data acquisition unit passes through the first temperature when blower motor operation
Sensor acquires the first temperature data of input terminal in real time；Data acquisition unit acquires output by second temperature sensor in real time
The second temperature data at end, Data Computation Unit obtain the first temperature variation in the predetermined time according to the first temperature data, number
Second temperature variable quantity in the predetermined time is obtained according to second temperature data according to arithmetic element, and is set in data determining unit
One temperature threshold, second temperature threshold value, the first warm variable threshold value and the second warm variable threshold value, when the first temperature data is greater than the first temperature
When spending threshold value or second temperature data greater than second temperature threshold value, data alarm unit issues alarm；When the first temperature change
When amount is greater than the first warm variable threshold value or second temperature variable quantity greater than the second warm variable threshold value, data alarm unit issues alarm.
So the motor temperature variation test device of the blower for vehicle air conditioning of the present embodiment not only can be total to blower for vehicle air conditioning
Blower motor in carries out the test that temperature becomes situation, and the ring under energy simulated automotive air conditioner blower assembly actual condition
Border temperature and environment wind pressure can also become situation to the temperature of improper blower for vehicle air conditioning and alarm, so as to drum
It is more accurate that blower motor tests the more previous obtained data of test method.
Above embodiment is preferred case of the invention, the protection scope being not intended to limit the invention.
Claims (4)
1. a kind of motor temperature of blower for vehicle air conditioning changes test device, electromechanical for the air blast to blower for vehicle air conditioning
The temperature variations of machine are tested, and the blower motor has input terminal and output end characterized by comprising
Work condition analogue portion is an enclosure space, for simulating the blower for vehicle air conditioning in environment temperature in actual work,
The ambient temperature range is -20 DEG C to 100 DEG C；
Wind tunnel test portion is located inside the Work condition analogue portion, for setting the blower for vehicle air conditioning in actual work
Environment wind pressure, the wind tunnel test portion is that cross section is circular " u "-shaped pipeline, and the wind tunnel test portion is located at the operating condition
In a perpendicular inside the simulation part and both ends in the wind tunnel test portion are arranged upward, the air conditioning for automobiles air blast
Machine is arranged inside the wind tunnel test portion；And
Data processing and control portion, including data acquisition unit interconnected, Data Computation Unit, data determining unit, data
Alarm unit and the first temperature sensor and second temperature sensor being separately connected with the data acquisition unit, described
One temperature sensor and the second temperature sensor are separately positioned on the input terminal and the output end,
Wherein, the wind tunnel test portion has the first vertical section, the second vertical section and first horizontal segment, first vertical section
Diameter is 15cm-18cm, and the second vertical section diameter is 20cm-30cm, and the first horizontal segment diameter is 15cm-20cm,
When blower motor operation, described in the data acquisition unit is acquired in real time by first temperature sensor
First temperature data of input terminal；The data acquisition unit acquires the output end by the second temperature sensor in real time
Second temperature data,
The Data Computation Unit obtains the first temperature variation in the predetermined time, the data according to first temperature data
Arithmetic element obtains second temperature variable quantity in the predetermined time according to the second temperature data,
The first temperature threshold, second temperature threshold value, the first warm variable threshold value and the second temperature are set in the data determining unit
Variable threshold value,
When first temperature data is greater than first temperature threshold or the second temperature data greater than the second temperature
When threshold value, the data alarm unit issues alarm；When first temperature variation be greater than the described first warm variable threshold value or
When the second temperature variable quantity is greater than the described second warm variable threshold value, the data alarm unit issues alarm.
2. blower for vehicle air conditioning motor temperature rise test device according to claim 1, it is characterised in that:
Wherein, the wind tunnel test portion includes the first air intake vent, the first air outlet and the second air outlet, first air intake vent
The both ends in the wind tunnel test portion are located at first air outlet, second air outlet is located at the first horizontal segment
On, the opening and closing situation by controlling first air outlet and second air outlet sets the environment wind pressure of the simulation.
3. blower for vehicle air conditioning motor temperature rise test device according to claim 1, it is characterised in that:
Wherein, the predetermined time is -20 seconds 10 seconds.
4. blower for vehicle air conditioning motor temperature rise test device according to claim 1, it is characterised in that:
Wherein, the data processing and control portion includes data storage cell and data retrieval unit interconnected, the data
Retrieval unit is connect with the data acquisition unit, and temperature data conversion table, the data are stored in the data store
Retrieval unit obtains the first temperature value, the data retrieval by the temperature data conversion table using first temperature data
Unit obtains second temperature value by the temperature data conversion table using the second temperature data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910208095.9A CN109827672B (en) | 2019-03-19 | 2019-03-19 | Motor temperature change testing arrangement of vehicle air conditioner air-blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Publication Number | Publication Date |
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| CN109827672A true CN109827672A (en) | 2019-05-31 |
| CN109827672B CN109827672B (en) | 2020-05-05 |
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