CN110132621A - A method of test air conditioning for automobiles assembly frosting resistance ability - Google Patents
A method of test air conditioning for automobiles assembly frosting resistance ability Download PDFInfo
- Publication number
- CN110132621A CN110132621A CN201910277470.5A CN201910277470A CN110132621A CN 110132621 A CN110132621 A CN 110132621A CN 201910277470 A CN201910277470 A CN 201910277470A CN 110132621 A CN110132621 A CN 110132621A
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- air
- conditioning
- assembly
- condenser
- resistance ability
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 76
- 238000012360 testing method Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000004458 analytical method Methods 0.000 claims description 3
- 238000007405 data analysis Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 230000005662 electromechanics Effects 0.000 claims 1
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization 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
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a kind of methods for testing air conditioning for automobiles assembly frosting resistance ability, including air-conditioning assembly, compressor, condenser, air-conditioning duct, expansion valve, air blower and voltmeter, the air-conditioning assembly is the air-conditioning assembly that leaving air temp sensor is entered the wind with evaporator, the condenser is the condenser with air inlet leaving air temp sensor, the air-conditioning duct is the air-conditioning duct with triple valve, the air-conditioning assembly is connected by air-conditioning duct with compressor and condenser, in accordance with vehicle coordinate position, connect the external blast pipe and air-conditioning assembly air inlet of air-conditioning assembly, and it is sealed in interface, it realizes and seals in expansion valve entrance simultaneously.A kind of method for testing air conditioning for automobiles assembly frosting resistance ability of the present invention, realize real vehicle air-conditioning system engine bench test, real vehicle air-conditioning system engine bench test and vehicle wind tunnel test, the operating condition of air-conditioning system can accurately be embodied, test result is accurate, and cost is lower, convenient for promoting the use of.
Description
Technical field
The present invention relates to the method method and technology field of testing air conditioner assembly frosting resistance ability, in particular to a kind of test vapour
The method of vehicle air-conditioning assembly frosting resistance ability.
Background technique
Automobile can face various environmental working conditions in the process of moving, and air-conditioning system is also faced with acid test.Automobile is empty
The occurrence of adjusting frosting and the setting of evaporator surface temperature sensor temperature value, the match condition of system, external environment item
Part and vehicle driving state have direct connection.In order to promote the refrigerating capacity of air-conditioning system to greatest extent, usually evaporate
The cutting temperature of device temperature sensor can be arranged it is relatively low, ambient temperature is moderate, humidity is larger, air-conditioning air volume compared with
In low, the higher situation of automobile driving speed, evaporator is easy to appear frosting situation.
After evaporimeter frosting, the resistance of blower be will increase, and air-out volume decreases up to blocks cutting air-conditioning system, meeting completely
The thermal comfort of vehicle is seriously affected, causes user and complains.In addition, changing for evaporator can be reduced after frosting occurs in evaporator
Hot property influences the vaporization of evaporator internal refrigeration storage agent, liquid refrigerant is caused to enter inside compressor, causes compressor liquid
It hits, to damage compressor, further pollutes entire air-conditioning system.
The test of the frosting resistance ability of air conditioning for automobiles assembly at present mainly has monomer frosting aptitude tests, non-real vehicle air-conditioning system
System engine bench test, real vehicle air-conditioning system engine bench test and vehicle wind tunnel test.Monomer frosting aptitude tests and non-real vehicle system
Engine bench test can not accurately embody the operating condition of air-conditioning system, and operating condition is single, the performance of test result and real vehicle system
There is larger difference, can not effectively embody system capability.Vehicle wind tunnel test usually only tests several spies since cost is too high
Determine operating condition.So finding a set of air-conditioning system frosting resistance aptitude tests method accurate, reliable, at low cost, that the period is short seems outstanding
It is important.
Summary of the invention
The main purpose of the present invention is to provide a kind of methods for testing air conditioning for automobiles assembly frosting resistance ability, can be effective
Solve the problems in background technique.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A method of test air conditioning for automobiles assembly frosting resistance ability, including air-conditioning assembly, compressor, condenser, air-conditioning
Pipeline, expansion valve, air blower and voltmeter, the air-conditioning assembly are that the air-conditioning with evaporator air inlet leaving air temp sensor is total
At the condenser is the condenser with air inlet leaving air temp sensor, and the air-conditioning duct is the air-conditioning with triple valve
Pipeline, if the expansion valve is provided with each, and the coefficient of expansion of several expansion valves is different, and the air-conditioning assembly is one
It is a have vehicle is representative, has the bracket of wheel and is installed close under the position of rack experimental enviroment, the air-conditioning
Assembly is connected by air-conditioning duct with compressor and condenser, abide by vehicle coordinate position, connect air-conditioning assembly outside into
Air hose and air-conditioning assembly air inlet, and be sealed in interface, while realizing and sealing in expansion valve entrance, prevent air stream
It losing, the motor binding post of the air blower connects the power supply of an adjustable blower voltage, to adjust blower voltage,
A voltmeter in parallel, voltmeter can measure the service voltage of air blower binding post on the blower motor binding post.
The method for testing air conditioning for automobiles assembly frosting resistance ability, comprising the following steps:
(1) Adjustment Tests equipment is to required operating condition, and stablizes；
(2) compressor rotary speed is adjusted to 3000rpm, adjusts PWM value, make evaporator NTC temperature stablize 1~1.5 DEG C it
Between, record the PWM value；
(3) 2 gained PWM value of input step, is tested, and duration 30min is tested；
(4) data analysis is carried out.
Preferably, the compressor is mounted on the particular module of rack, and variable revolving speed may be implemented.
Preferably, the air inlet of the condenser is connected with the air outlet of condenser rack, seals in interface.
Preferably, the air-conditioner pipe is connected with entire refrigerating circuit, guarantees the leakproofness of each interface.
Preferably, data described in the step (4) analysis referring in particular to as follows:
(4.1), evaporator outlet air surface most cold-point temperature is greater than 0 DEG C；
(4.2), evaporator temperature sensor temperature and the temperature difference of most cold-point temperature are less than 2 DEG C；
(4.3), condensed water normal discharge；
(4.4), after test carries out 30min, air quantity, which is reduced, is no more than 30kg/h.
Compared with prior art, the invention has the following beneficial effects:
1. the present invention, the method for the test air conditioning for automobiles assembly frosting resistance ability, air-conditioning assembly is arranged to be had at one
Vehicle is representative, have the bracket of wheel and close under the position of rack experimental enviroment, realizes real vehicle air-conditioning system rack
Test, can accurately embody the operating condition of air-conditioning system, test result is accurate.
2. the present invention, the method for the test air conditioning for automobiles assembly frosting resistance ability, in contrast to vehicle wind tunnel test, cost compared with
It is low, convenient for promoting the use of.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
A method of test air conditioning for automobiles assembly frosting resistance ability, including air-conditioning assembly, compressor, condenser, air-conditioning
Pipeline, expansion valve, air blower and voltmeter, the air-conditioning assembly are that the air-conditioning with evaporator air inlet leaving air temp sensor is total
At the condenser is the condenser with air inlet leaving air temp sensor, and the air-conditioning duct is the air-conditioning with triple valve
Pipeline, if the expansion valve is provided with each, and the coefficient of expansion of several expansion valves is different, and the air-conditioning assembly is one
It is a have vehicle is representative, has the bracket of wheel and is installed close under the position of rack experimental enviroment, the air-conditioning
Assembly is connected by air-conditioning duct with compressor and condenser, abide by vehicle coordinate position, connect air-conditioning assembly outside into
Air hose and air-conditioning assembly air inlet, and be sealed in interface, while realizing and sealing in expansion valve entrance, prevent air stream
It losing, the motor binding post of the air blower connects the power supply of an adjustable blower voltage, to adjust blower voltage,
A voltmeter in parallel, voltmeter can measure the service voltage of air blower binding post on the blower motor binding post.
The method of the test air conditioning for automobiles assembly frosting resistance ability, comprising the following steps:
(1) Adjustment Tests equipment is to required operating condition, and stablizes；
(2) compressor rotary speed is adjusted to 3000rpm, adjusts PWM value, make evaporator NTC temperature stablize 1~1.5 DEG C it
Between, record the PWM value；
(3) 2 gained PWM value of input step, is tested, and duration 30min is tested；
(4) data analysis is carried out.
The compressor is mounted on the particular module of rack, and variable revolving speed may be implemented.
The air inlet of the condenser is connected with the air outlet of condenser rack, seals in interface.
The air-conditioner pipe is connected with entire refrigerating circuit, guarantees the leakproofness of each interface.
Data described in the step (4) analysis referring in particular to as follows:
(4.1), evaporator outlet air surface most cold-point temperature is greater than 0 DEG C；
(4.2), evaporator temperature sensor temperature and the temperature difference of most cold-point temperature are less than 2 DEG C；
(4.3), condensed water normal discharge；
(4.4), after test carries out 30min, air quantity, which is reduced, is no more than 30kg/h.
(required operating condition is in above-mentioned technical proposal)
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
1. a kind of method for testing air conditioning for automobiles assembly frosting resistance ability, including air-conditioning assembly, compressor, condenser, air-conditioner pipe
Road, expansion valve, air blower and voltmeter, it is characterised in that:
The air-conditioning assembly is the air-conditioning assembly that leaving air temp sensor is entered the wind with evaporator；
The condenser is the condenser with air inlet leaving air temp sensor；
The air-conditioning duct is the air-conditioning duct with triple valve；
If the expansion valve is provided with each, and the coefficient of expansion of several expansion valves is different；
The air-conditioning assembly has the bracket that vehicle is representative, has wheel at one and close to the position of rack experimental enviroment
Under installed；
The air-conditioning assembly is connected by air-conditioning duct with compressor and condenser, and vehicle coordinate position is abided by, and connects air-conditioning
The external blast pipe and air-conditioning assembly air inlet of assembly, and be sealed in interface, while close in the realization of expansion valve entrance
Envelope, prevents air to be lost；
The motor binding post of the air blower connects the power supply of an adjustable blower voltage, to adjust air blast electromechanics
Pressure；
A voltmeter in parallel on the blower motor binding post, voltmeter can measure the supply electricity of air blower binding post
Pressure.
2. a kind of method for testing air conditioning for automobiles assembly frosting resistance ability, comprising the following steps:
(1) Adjustment Tests equipment is to required operating condition, and stablizes；
(2) compressor rotary speed is adjusted to 3000rpm, adjusts PWM value, stablizes evaporator NTC temperature between 1~1.5 DEG C, note
Record the PWM value；
(3) 2 gained PWM value of input step, is tested, and duration 30min is tested；
(4) data analysis is carried out.
3. a kind of method for testing air conditioning for automobiles assembly frosting resistance ability according to claim 1, it is characterised in that: described
Compressor is mounted on the particular module of rack, and variable revolving speed may be implemented.
4. a kind of method for testing air conditioning for automobiles assembly frosting resistance ability according to claim 1, it is characterised in that: described
The air inlet of condenser is connected with the air outlet of condenser rack, seals in interface.
5. a kind of method for testing air conditioning for automobiles assembly frosting resistance ability according to claim 1, it is characterised in that: described
Air-conditioner pipe is connected with entire refrigerating circuit, guarantees the leakproofness of each interface.
6. a kind of method for testing air conditioning for automobiles assembly frosting resistance ability according to claim 2, it is characterised in that: described
Data described in step (4) analysis referring in particular to as follows:
(4.1), evaporator outlet air surface most cold-point temperature is greater than 0 DEG C；
(4.2), evaporator temperature sensor temperature and the temperature difference of most cold-point temperature are less than 2 DEG C；
(4.3), condensed water normal discharge；
(4.4), after test carries out 30min, air quantity, which is reduced, is no more than 30kg/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910277470.5A CN110132621A (en) | 2019-04-08 | 2019-04-08 | A method of test air conditioning for automobiles assembly frosting resistance ability |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910277470.5A CN110132621A (en) | 2019-04-08 | 2019-04-08 | A method of test air conditioning for automobiles assembly frosting resistance ability |
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| CN110132621A true CN110132621A (en) | 2019-08-16 |
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| CN201910277470.5A Pending CN110132621A (en) | 2019-04-08 | 2019-04-08 | A method of test air conditioning for automobiles assembly frosting resistance ability |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10118861A (en) * | 1996-10-18 | 1998-05-12 | Sanyo Electric Co Ltd | Judging method for quality of electric appliance |
| CN102323204A (en) * | 2011-08-23 | 2012-01-18 | 昆山一恒仪器有限公司 | Anti-frosting constant-temperature constant-humidity test box and anti-frosting method thereof |
| CN103063457A (en) * | 2012-12-30 | 2013-04-24 | 南方英特空调有限公司 | Finished automobile air conditioning system simulation test device and method |
| CN203148648U (en) * | 2013-03-18 | 2013-08-21 | 上海佐竹冷热控制技术有限公司 | Real automobile piping test system for automobile air conditioner comprehensive performance test chamber |
| CN103591669A (en) * | 2013-10-18 | 2014-02-19 | 广东美的制冷设备有限公司 | Air-conditioner equipment and anti-frosting method and anti-frosting device for air-conditioner equipment |
| CN104062144A (en) * | 2014-07-18 | 2014-09-24 | 南方英特空调有限公司 | Full-automatic automobile air conditioner cabinet linear test stand |
| CN106608157A (en) * | 2015-10-23 | 2017-05-03 | 杭州三花研究院有限公司 | Air conditioner system and air conditioner control method |
| CN109186921A (en) * | 2018-09-17 | 2019-01-11 | 江西江铃集团新能源汽车有限公司 | Air conditioner of electric vehicle evaporator icing tests method |
-
2019
- 2019-04-08 CN CN201910277470.5A patent/CN110132621A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10118861A (en) * | 1996-10-18 | 1998-05-12 | Sanyo Electric Co Ltd | Judging method for quality of electric appliance |
| CN102323204A (en) * | 2011-08-23 | 2012-01-18 | 昆山一恒仪器有限公司 | Anti-frosting constant-temperature constant-humidity test box and anti-frosting method thereof |
| CN103063457A (en) * | 2012-12-30 | 2013-04-24 | 南方英特空调有限公司 | Finished automobile air conditioning system simulation test device and method |
| CN203148648U (en) * | 2013-03-18 | 2013-08-21 | 上海佐竹冷热控制技术有限公司 | Real automobile piping test system for automobile air conditioner comprehensive performance test chamber |
| CN103591669A (en) * | 2013-10-18 | 2014-02-19 | 广东美的制冷设备有限公司 | Air-conditioner equipment and anti-frosting method and anti-frosting device for air-conditioner equipment |
| CN104062144A (en) * | 2014-07-18 | 2014-09-24 | 南方英特空调有限公司 | Full-automatic automobile air conditioner cabinet linear test stand |
| CN106608157A (en) * | 2015-10-23 | 2017-05-03 | 杭州三花研究院有限公司 | Air conditioner system and air conditioner control method |
| CN109186921A (en) * | 2018-09-17 | 2019-01-11 | 江西江铃集团新能源汽车有限公司 | Air conditioner of electric vehicle evaporator icing tests method |
Non-Patent Citations (1)
| Title |
|---|
| 康拉德•莱夫 主编: "《家用电器产品维修工职业资格考试必读》", 31 December 2014, 北京理工大学出版社 * |
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Application publication date: 20190816 |
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