CN108303267A - A kind of integrated vehicle air-conditioning unit test device - Google Patents
A kind of integrated vehicle air-conditioning unit test device Download PDFInfo
- Publication number
- CN108303267A CN108303267A CN201810052848.7A CN201810052848A CN108303267A CN 108303267 A CN108303267 A CN 108303267A CN 201810052848 A CN201810052848 A CN 201810052848A CN 108303267 A CN108303267 A CN 108303267A
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- air
- test
- outlet
- outlet air
- conditioning unit
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- 238000012360 testing method Methods 0.000 title claims abstract description 127
- 238000004378 air conditioning Methods 0.000 title claims abstract description 45
- 238000012545 processing Methods 0.000 claims abstract description 17
- 230000003068 static effect Effects 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims description 13
- 238000013480 data collection Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000009530 blood pressure measurement Methods 0.000 claims description 2
- 238000010257 thawing Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 230000010259 detection of temperature stimulus Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00585—Means for monitoring, testing or servicing the air-conditioning
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Conditioning Control Device (AREA)
Abstract
A kind of integrated vehicle air-conditioning unit test device, including it is internally integrated the outlet air test box of multigroup outlet air test cell, one end of every group of outlet air test cell is air inlet interface end；Including multiple outlet air plenum chambers, the input end of multiple outlet air plenum chambers is connect with each air outlet of vehicle air conditioning unit one by one respectively by pipeline, the outlet end of multiple outlet air plenum chambers is connect with the air inlet interface end of multigroup outlet air test cell one by one respectively by pipeline, and a static pressure transducer is equipped in each outlet air plenum chamber；Including thermocouple case, a test input interface of thermocouple case corresponds to an air outlet of vehicle air conditioning unit, and test input interface is connected with corresponding air outlet through thermocouple wiring；Including data collecting instrument and test data processing unit.This test device realizes to multiple air outlets while testing allocation of the amount of air performance and temperature linearity performance.
Description
Technical field
The present invention relates to a kind of test device of assessment air conditioning for automobiles performance, more particularly to a kind of integrated vehicle air tune
Save unit testing device.
Background technology
Currently, the test of vehicle air conditioning unit generally comprises：Refrigeration performance, heating performance, each tuyere air volume ratio
The tests such as example allocation performance, each air port leaving air temp performance.Existing measuring device generally uses independent measurement refrigeration, measures system
Hot is jack horse test bed；The each air outlet air quantity of air-conditioning unit is measured generally using the method repeatedly measured；Measure air-conditioning unit
Each air outlet temperature is even more then that time-consuming, and general modfel air door has 5 or 6 gears；Changes in temperature air door, which has from complete, to be as cold as warming up 11 entirely
A gear；Changes in temperature air door generally requires the stroke along inverse both direction, has 132 operating modes to be tested through calculating in this way.
Time-consuming for two above performance test, seriously affects development progress, becomes exploitation key node.
Invention content
The present invention provides one kind for technical problem present in solution known technology and can test simultaneously multiple air outlets
Allocation of the amount of air performance and temperature linearity performance improve the integrated vehicle of testing efficiency so as to significantly save the testing time
Air-conditioning unit test device.
The present invention is adopted the technical scheme that solve technical problem present in known technology：
A kind of integrated vehicle air-conditioning unit test device, it is characterised in that：
Including outlet air test box, the outlet air test of multigroup differential pressure measurement for realizing air quantity is integrated in outlet air test box
One end of unit, every group of outlet air test cell is air inlet interface end；
Include multiple outlet air plenum chambers consistent with outlet air test cell group number, the input end of multiple outlet air plenum chambers passes through
Pipeline is connect with each air outlet of vehicle air conditioning unit one by one respectively, and the outlet end of multiple outlet air plenum chambers passes through pipeline point
It is not connect one by one with the air inlet interface end of multigroup outlet air test cell, static pressure sensing is mounted in each outlet air plenum chamber
Device；
Including thermocouple case, it is provided with multiple test input interfaces and multiple test output interfaces on thermocouple case, one
The air outlet that input interface corresponds to vehicle air conditioning unit is tested, and it is logical with corresponding air outlet to test input interface
Cross thermocouple wiring connection；
It include the large barometer for detecting outlet air test box ambient exterior atmospheric pressure；
Including test data collection processing unit, test data collection processing unit is by being used to acquire multiple pressure difference output letters
Number, thermocouple detection output signal, static pressure detection output signal and atmospheric pressure detection signal data collecting instrument and data are adopted
Test data processing unit two parts that the output signal of collection instrument is handled are constituted.
Further：Every group of outlet air test cell is sequentially connected structure by blast pipe, V cones, discharge pipe, frequency conversion centrifugal blower
At the port of blast pipe forms the air inlet interface end of outlet air test cell；Respectively draw a test point, both ends in the both ends of each V cones
Test point connects with being arranged to be respectively formed gas in two test sides of external differential manometer and lead to.
Further：The differential manometer, large barometer and test data collection processing unit are installed concentratedly in Electric Appliance Cabinet,
Electric Appliance Cabinet is set to outside outlet air test box.
Further：It is additionally provided with inlet air temperature detection piece in the air inlet of vehicle air conditioning unit.
Further：The quantity of outlet air test cell is 15 groups；The quantity of outlet air plenum chamber is 15.
Further：It is also mounted on a temperature sensor in each outlet air plenum chamber.
The invention has the advantages and positive effects that：
This integrated vehicle air-conditioning unit test device is arranged for each air outlet of vehicle air conditioning unit
One measurement branch, all measurement data for measuring branch carry out uniform data acquisition and data processing, in this way, can survey simultaneously
The each outlet air quantity of test specimen is tried, and show that each air outlet air quantity accounts for the allocation proportion of total blast volume (in interior outer gas air door position
It sets in certain certain position, in changes in temperature damper positions and is in certain certain position, pattern air door is respectively at blow head, blow head blows foot,
Foot is blown, full blows, blow under six foot defrosting, defrosting positions, tests the air quantity of each air outlet in air duct)；Also it can test simultaneously each
The temperature linearity performance of air outlet is (interior outer gas damper positions are in certain certain position, pattern damper positions are in a certain positioning
It sets, as the position of changes in temperature air door is from minimum aperture to maximum opening, tests each air outlet temperature, then form changes in temperature air door
The linearity curve of position and air outlet temperature), and test allocation of the amount of air examination is completed at the same time in the case of once mounting test block
It tests and is tested with temperature linearity.To which the testing time be greatly saved, testing efficiency is improved.
Description of the drawings
Fig. 1 is the connection diagram of test block of the present invention, outlet air plenum chamber and outlet air test box；
Fig. 2 is the data transmission schematic diagram of each detecting element of the present invention, data collecting instrument and test data processing unit.
In figure：1, outlet air test box；1-1, blast pipe；1-2, V are bored；1-3, discharge pipe；1-4, frequency conversion centrifugal blower；2, go out
Wind plenum chamber.
Specific implementation mode
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and coordinate attached drawing
Detailed description are as follows：
Fig. 1-2, a kind of integrated vehicle air-conditioning unit test device are referred to, innovative point is：Include mainly
Outlet air test box, multiple outlet air plenum chambers, thermocouple case, large barometer, by data collecting instrument and test data processing unit structure
At test data collection processing unit.
Multigroup outlet air test cell is integrated in outlet air test box 1, outlet air test cell is used to measure the wind of corresponding branch
The pressure difference of amount.Every group of outlet air test cell further preferably centrifuges wind by blast pipe 1-1, V cone 1-2, discharge pipe 1-3, frequency conversion
Machine 1-4 is sequentially connected composition.The port of blast pipe forms the air inlet interface end of outlet air test cell.Respectively draw at the both ends of each V cones
Go out a test point, both ends test point connects with being arranged to be respectively formed gas in two test sides of external differential manometer and lead to, specifically, logical
It crosses two plastic flexible pipes to export the correspondence gas pressure of both ends test point, two detections is detected by two test sides of differential manometer
The gas pressure of point obtains the pressure difference of V cones with this.Differential manometer and the connection at the both ends bored V do not illustrate in the accompanying drawings.It is above-mentioned
V cones can also be used nozzle substituted.
Multiple outlet air plenum chambers 2 are consistent with outlet air test cell group number, and the input end of multiple outlet air plenum chambers passes through pipeline
Connect one by one with each air outlet of vehicle air conditioning unit respectively, the outlet ends of multiple outlet air plenum chambers by pipeline respectively with
The air inlet interface end of multigroup outlet air test cell connects one by one, and a static pressure transducer is mounted in each outlet air plenum chamber,
The effect of static pressure transducer is：Perceive the air pressure in plenum chamber.After data collecting instrument acquires plenum chamber inner air pressure, subtract
It is used as static pressure after removing atmospheric pressure.Static pressure generally sets 0Pa, when vehicle air conditioning unit is started to work, plenum chamber
Interior pressure superatmospheric power, static pressure are more than 0Pa, and frequency conversion centrifugal blower is started to work, when reaching a certain frequency, static pressure
Stabilization fluctuates above or below 0Pa.
Multiple test input interfaces and multiple test output interfaces, a test input interface pair are provided on thermocouple case
Should be in an air outlet of vehicle air conditioning unit, and test input interface and connected by thermocouple wiring with corresponding air outlet
It connects.The effect of thermocouple case, which is arranged, is：By thermocouple wiring, each duct outlet of vehicle air conditioning unit is perceived
The temperature at place.
Large barometer is for detecting outlet air test box ambient exterior atmospheric pressure.
Data collecting instrument is for acquiring multiple pressure difference output signals, thermocouple detection output signal, static pressure detection output letter
Number and atmospheric pressure detect signal, test data processing unit is for handling the output signal of data collecting instrument.
Above-mentioned differential manometer, large barometer and test data collection processing unit are further preferably installed concentratedly in Electric Appliance Cabinet
In, Electric Appliance Cabinet is set to outside outlet air test box.And thermocouple case is placed in vehicle air conditioning unit neighbouring position.
On the basis of above-mentioned integrated vehicle air-conditioning unit test device, in the air inlet of vehicle air conditioning unit
It is further provided with inlet air temperature detection piece at mouthful, for example uses thermometer.Vehicle is can measure by the inlet air temperature detection piece
The inlet air temperature of air-conditioning unit.In the case where vehicle air conditioning unit is in defrosting or blows foot operating mode, by vehicle sky
The inlet air temperature of controlled atmosphere section unit, vehicle air conditioning unit blow foot air outlet temperature or Defroster Outlet temperature is transferred to survey
Data acquisition process unit is tried, it can be achieved that the test that heating performance is tested.And it is in blow head work in vehicle air conditioning unit
Under pattern, the inlet air temperature of vehicle air conditioning unit, the blow head air outlet temperature of vehicle air conditioning unit are transferred to survey
Try data acquisition process unit, it can be achieved that refrigeration performance experiment test, to extend this integrated vehicle air conditioning list
The test function of first test device.
The quantity of above-mentioned outlet air test cell is more preferably 15 groups；The quantity of above-mentioned outlet air plenum chamber is further preferred
It is 15.Using the preferred embodiment of 15 groups of outlet air test cells and 15 groups of outlet air plenum chambers, existing vehicle air can be met and adjusted
The once mounting of most 15 air outlets of unit detects.And when the quantity of the air outlet of the air-conditioning unit of vehicle is less than 15
When, the selection use of respective numbers is carried out from 15 groups of outlet air detection units.
Above-mentioned that a temperature sensor is also further fitted in each outlet air plenum chamber, the detection of temperature sensor is defeated
Data collecting instrument will be equally transferred to by going out signal.Temperature sensor is arranged in outlet air plenum chamber to act as：Perceive vehicle air
Each duct outlet for adjusting unit passes through the mixed air themperature of nature.
Below by taking the automotive air-conditioning system of existing most air outlets (15 air outlets) as an example, this integrated form is illustrated
Vehicle air conditioning unit test device operation principle：
After air conditioning for automobiles and its air duct install, apply 4 to 12V a certain numerical value DC voltage, air blast to air blower
Machine operating generates air quantity.According to test requirements document, interior outer gas air door, changes in temperature air door rotate to the position of a certain requirement, pattern air door
Rotate to blow head respectively, blow head blows foot, blows foot, full blow, blows foot defrosting, defrosting one of six positions, then test tested sample
The air quantity of each air outlet of part.Air flows through defrosting duct by test specimen, by three roads, blow head air duct, blows foot air duct, each
Air duct separates 5 air ports.Air flows to a plenum chamber by each air port again.It is total in this way to separate 15 accesses.Every access
Air, by hose flow into an outlet air test cell, finally from frequency conversion centrifugal blower exclude air.
Collected atmospheric pressure data, V cones pressure difference data, temperature data, static pressure data are inputed to survey by data collecting instrument
Data processing unit is tried, the ratio data report that each air outlet air quantity accounts for total blast volume is obtained after data processing；And it is each
A air outlet temperature, as the position of changes in temperature air door is from minimum aperture to maximum opening, test obtains each air outlet temperature, so
The linear data of changes in temperature damper positions and air outlet temperature is formed afterwards.Thus allocation of the amount of air experiment and temperature linearity are tested same
When can complete.
In no testing stand (this integrated vehicle air-conditioning unit test device), allocation of the amount of air is tested at one
The rack for exclusively carrying out wind quantity test is completed.Temperature linearity experiment is completed on another enthalpy difference experiment platform.If to automobile sky
It adjusts, after the air duct progress structure change that air-conditioning connects below, needs to be tested respectively, test efficiency is very low.Develop this examination
After testing platform, test efficiency is greatly improved, shortens the development cycle.
Claims (6)
1. a kind of integrated vehicle air-conditioning unit test device, it is characterised in that：
Including outlet air test box, the outlet air test that multigroup differential pressure measurement for realizing air quantity is integrated in outlet air test box is single
One end of member, every group of outlet air test cell is air inlet interface end；
Include multiple outlet air plenum chambers consistent with outlet air test cell group number, the input end of multiple outlet air plenum chambers passes through pipeline
Connect one by one with each air outlet of vehicle air conditioning unit respectively, the outlet ends of multiple outlet air plenum chambers by pipeline respectively with
The air inlet interface end of multigroup outlet air test cell connects one by one, and a static pressure transducer is mounted in each outlet air plenum chamber；
Including thermocouple case, multiple test input interfaces and multiple test output interfaces, a test are provided on thermocouple case
Input interface corresponds to an air outlet of vehicle air conditioning unit, and tests input interface and pass through heat with corresponding air outlet
Galvanic couple wiring connects；
It include the large barometer for detecting outlet air test box ambient exterior atmospheric pressure；
Including test data collection processing unit, test data collection processing unit by be used to acquire multiple pressure difference output signals,
Thermocouple detects output signal, the data collecting instrument of static pressure detection output signal and atmospheric pressure detection signal and to data collecting instrument
Test data processing unit two parts for being handled of output signal constitute.
2. integrated vehicle air-conditioning unit test device according to claim 1, it is characterised in that：Every group of outlet air is surveyed
Examination unit is sequentially connected and is constituted by blast pipe, V cones, discharge pipe, frequency conversion centrifugal blower, and the port of blast pipe forms outlet air test list
The air inlet interface end of member；A test point is respectively drawn at the both ends of each V cones, both ends test point and is arranged the two of external differential manometer
Test side, which is respectively formed gas, leads to and connects.
3. integrated vehicle air-conditioning unit test device according to claim 1, it is characterised in that：The pressure difference
Meter, large barometer and test data collection processing unit are installed concentratedly in Electric Appliance Cabinet, and Electric Appliance Cabinet is set to outside outlet air test box.
4. integrated vehicle air-conditioning unit test device according to claim 1, it is characterised in that：In vehicle air
The air inlet for adjusting unit is additionally provided with inlet air temperature detection piece.
5. integrated vehicle air-conditioning unit test device according to claim 1, it is characterised in that：Outlet air test is single
The quantity of member is 15 groups；The quantity of outlet air plenum chamber is 15.
6. integrated vehicle air-conditioning unit test device according to claim 1, it is characterised in that：In each outlet air
A temperature sensor is also mounted in plenum chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810052848.7A CN108303267A (en) | 2018-01-19 | 2018-01-19 | A kind of integrated vehicle air-conditioning unit test device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810052848.7A CN108303267A (en) | 2018-01-19 | 2018-01-19 | A kind of integrated vehicle air-conditioning unit test device |
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| Publication Number | Publication Date |
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| CN108303267A true CN108303267A (en) | 2018-07-20 |
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| CN201810052848.7A Pending CN108303267A (en) | 2018-01-19 | 2018-01-19 | A kind of integrated vehicle air-conditioning unit test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235450A (en) * | 2021-11-12 | 2022-03-25 | 东风马勒热***有限公司 | Vehicle air conditioner air volume distribution measuring system and vehicle air conditioner air volume distribution measuring method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4750355A (en) * | 1987-02-19 | 1988-06-14 | Kabushiki-Kaisha Toyo Seisakusho | Wind-velocity controlling apparatus for simulating self-propelled vehicle velocity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235450A (en) * | 2021-11-12 | 2022-03-25 | 东风马勒热***有限公司 | Vehicle air conditioner air volume distribution measuring system and vehicle air conditioner air volume distribution measuring method |
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