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GB/T 22068-2018 English PDF (GBT22068-2018)

GB/T 22068-2018 English PDF (GBT22068-2018)

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GB/T 22068-2018: Electrically driven compressor assembly for automobile air conditioning

This Standard specifies the terms, definitions, model, fundamental parameters, technical requirements, test methods, inspection rules, mark, packaging, transportation and storage of electrically driven compressor assembly for automobile air conditioning. This Standard is applicable to electrically driven compressor assembly for automobile air conditioning.
GB/T 22068-2018
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 27.200
J 73
Replacing GB/T 22068-2008
Electrically Driven Compressor Assembly
for Automobile Air Conditioning
ISSUED ON. MAY 14, 2018
IMPLEMENTED ON. DECEMBER 1, 2018
Issued by. State Administration for Market Regulation;
Standardization Administration Committee of the PEOPLE
Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 Terms and Definitions ... 6
4 Model and Fundamental Parameters ... 7
5 Technical Requirements ... 8
6 Test Methods ... 17
7 Inspection Rules ... 27
8 Mark, Packaging, Transportation and Storage ... 29
Appendix A (Normative) Temperature Rise Test Method (electrical resistance method) ... 31
Foreword
This Standard is drafted in accordance with stipulations in GB/T 1.1-2009. This Standard serves as a replacement of GB/T 22068-2008 Automobile Air Conditioning Electrically Driven Compressor Assembly. In comparison with GB/T 22068-2008, other than editorial modifications, there are several main technical changes as follows.
---The scope of application of this Standard is modified (please refer to Chapter 1; Chapter 1 in Version 2008);
---The model and fundamental parameters of electrically driven compressor assembly are modified (please refer to Chapter 4; Chapter 4 in Version 2008); ---The nominal working conditions and limit of refrigerating (heating) performance coefficient of electrically driven compressor assembly are modified (please refer to 4.3 and 5.3; 6.3 and 5.2 in Version 2008);
---The working conditions, limit requirements and test methods of noise test of electrically driven compressor assembly are modified (please refer to 5.4 and 6.4; 6.4 and 5.3 in Version 2008);
---The requirements and test methods of exciting force of electrically driven compressor assembly are added (please refer to 5.5 and 6.5);
---The requirements of compressor with direct current motor are modified, such as internal cleanliness, internal moisture content, tightness, corrosion resistance, insulation resistance of the electrically driven stator winding to the outer casing, and voltage resistance, compressive strength resistance and vibration
resistance of the electrically driven stator winding to the outer casing (please refer to Chapter 5; Chapter 5 in Version 2008);
---The requirements of insulation resistance of drive controller are modified (please refer to 5.7.2; 5.5.2 in Version 2008);
---The test methods of compressive strength resistance and vibration resistance of compressor with direct current motor are modified (please refer to 6.6.4 and 6.6.5; 6.5.4 and 6.5.12 in Version 2008);
---The working conditions of durability test of electrically driven compressor assembly are modified (please refer to 6.8; 6.7 in Version 2008);
---The requirements and test methods of voltage fluctuation resistance of electrically driven compressor assembly are added (please refer to 5.9 and 6.9). This Standard was proposed by China Machinery Industry Federation.
Electrically Driven Compressor Assembly
for Automobile Air Conditioning
1 Scope
This Standard specifies the terms, definitions, model, fundamental parameters, technical requirements, test methods, inspection rules, mark, packaging, transportation and storage of electrically driven compressor assembly for automobile air conditioning (hereinafter referred to as ?€?electrically driven compressor assembly?€?). This Standard is applicable to electrically driven compressor assembly for automobile air conditioning.
2 Normative References
The following documents are indispensable to the application of this Standard. In terms of references with a specified date, only versions with a specified date are applicable to this Standard. The latest version (including all the modifications) of references without a specified date is also applicable to this Standard.
GB/T 191 Packaging - Pictorial Marking for Handling of Goods
GB/T 2423.17 Environmental Testing for Electric and Electronic Products - Part 2. Test Methods - Test Ka. Salt Mist
GB/T 2423.34-2012 Environmental Testing - Part 2. Test Methods - Test Z/AD. Composite Temperature/humidity Cyclic Test
GB/T 4208 Degrees of Protection Provided by Outer casing (IP Code)
GB/T 5773 The Method of Performance Test for Positive Displacement Refrigerant Compressors
GB/T 13306 Plates
GB/T 17619 Limits and Methods of Testing for Immunity of Electrical/electronic Sub-assemblies in Vehicles to Electromagnetic Radiation
GB/T 18488.1 The Electrical Machines and Controllers for Electric Vehicles - Part 1. General Specification
GB/T 18488.2 The Electrical Machines and Controllers for Electric Vehicles - Part 5.6.4 Compressive strength
Compressor with direct current motor, casing and motor lead terminal shall manifest no leakage or abnormal deformation.
NOTE. in this test, the damage of the various rubber seals shall not be considered as a requirement of evaluation.
5.6.5 Vibration resistance
After vibration resistance test, compressor with direct current motor shall comply with the following requirements.
a) Compressor with direct current motor shall have no internal damage and shall be able to function; bolts shall not be loosened or damaged;
b) After the tightness test, the amount of leakage from compressor with direct current motor shall comply with the requirement in 5.6.3;
c) Voltage resistance test shall comply with the requirement in 5.6.10; e) In the re-test under the working conditions stipulated in Table 2, the practically measured refrigerating (heating) capacity of electrically driven compressor assembly shall be no less than 90% of the practically measured value before the vibration resistance test; the practically measured refrigerating (heating) performance coefficient shall be no less than 82% of the practically measured value before the vibration resistance test;
f) There shall be no abnormal noise; noise increase of electrically driven compressor assembly shall be not more than 3 dB(A);
g) The outer casing protection grade shall comply with the requirement in 5.6.11. 5.6.6 Thermal cycling
After high-temperature resistance test, low-temperature resistance test and temperature alternation test are conducted respectively, compressor with direct current motor that has sealed suction port and exhaust port shall comply with the following requirements.
a) The amount of leakage from compressor with direct current motor shall comply with the requirement in 5.6.3;
b) The test on insulation resistance of the electrically driven stator winding to the outer casing shall comply with the requirement in 5.6.9;
c) Voltage resistance test shall comply with the stipulation in 5.6.10; 5.7 Drive Controller
5.7.1 Mechanical strength
The outer casing of the drive controller shall manifest no deformation. 5.7.2 Insulation resistance
The insulation resistance of the drive controller shall be more than 50 M???. 5.7.3 Voltage resistance
The drive controller shall manifest no breakdown, flashover or electric arcing. 5.7.4 Outer casing protection grade
The protection grade of the drive controller is IP 54. After the test of outer casing protection grade, re-test the insulation resistance of the drive controller, it shall comply with the stipulation in 5.7.2; re-test the voltage resistance performance of the drive controller, it shall comply with the stipulation in 5.7.3.
5.7.5 Vibration resistance
After vibration resistance test, the drive controller shall comply with the following requirements.
a) Bolts shall not be loosened or damaged; internal wiring shall manifest no breakage; components shall not be loosened;
b) Insulation resistance shall comply with the stipulation in 5.7.2;
c) Voltage resistance shall comply with the stipulation in 5.7.3;
d) The drive controller shall be able to operate normally;
e) The outer casing protection grade shall comply with the requirement in 5.7.4. 5.7.6 Thermal cycling
After thermal cycling test, the drive controller shall comply with the following requirements.
a) Insulation resistance shall comply with the stipulation in 5.7.2;
b) Voltage resistance shall comply with the stipulation in 5.7.3;
c) The drive controller shall be able to operate normally;
d) The outer casing protection grade shall comply with the requirement in 5.7.4. value before the durability test;
f) There shall be no abnormal noise; noise increase of electrically driven compressor assembly shall be not more than 2 dB(A);
g) The outer casing protection grade shall comply with the requirement in 5.7.4. 5.9 Voltage Fluctuation Resistance
After voltage fluctuation resistance test, electrically driven compressor assembly shall comply with the following requirements.
a) Refrigerating (heating) performance coefficient shall comply with the stipulation in Table 2;
b) Voltage resistance of the electrically driven stator winding to the outer casing shall comply with the stipulation in 5.6.10;
c) Insulation resistance of the drive controller shall comply with the stipulation in 5.7.2;
d) Voltage resistance of the drive controller shall comply with the stipulation in 5.7.3;
e) The outer casing protection grade shall comply with the requirement in 5.7.4. 5.10 Electromagnetic Compatibility
5.10.1 Electromagnetic immunity
5.10.1.1 Electromagnetic radiation immunity
Under the immunity limit stipulated in GB/T 17619, electrically driven compressor assembly shall be able to operate normally under normal service conditions. 5.10.1.2 Electrical transient conduction immunity
Under the pulse type and Level-III immunity limit stipulated in GB/T 21437.2 and GB/T 21437.3, electrically driven compressor assembly shall be able to operate normally under normal service conditions.
5.10.1.3 Electrostatic discharge immunity
Under Level-III immunity limit stipulated in GB/T 19951-2005, electrically driven compressor assembly shall be able to operate normally under normal service conditions.
5.10.2 Electromagnetic disturbance
> 250 ~ 500 500
> 500 ~ 1,000 1,000
6.6.10 Voltage resistance test of electrically driven stator winding to outer casing Voltage resistance test of electrically driven stator winding of the compressor with direct current motor to the outer casing shall comply with the method stipulated in GB/T 18488.2. During the test, build a short circuit of the outlet terminal of triple-phase wire of the stator winding. In accordance with the rated voltage of the stator winding being measured, select a test voltage that complies with the stipulation in Table 6. Measure the valid value of voltage, it shall be not more than ?? 5 % of the stipulated value. The test shall not be conducted repeatedly. If the user makes a request, a test is allowable after the installation and before the operation. The test voltage value shall be not more than 80% of the voltage that is stipulated in Table 6.
6.6.11 Outer casing protection grade test
Install the compressor with direct current motor to an equipment that has a similar working status in practice. Conduct the test in accordance with the method stipulated in GB/T 4208.
6.7 Drive Controller
6.7.1 Mechanical strength
Place a heavy object (size. 10 cm x 10 cm; weight. 20 kg) on the outer casing of the drive controller, then, check the deformation of the outer casing of the drive controller. 6.7.2 Insulation resistance
Adopt megohmmeter or exclusive insulation resistance meter to measure the insulation resistance of each outlet terminal of the drive controller to the outer casing. During the test, switch and contactor in the drive controller shall be switched on. In terms of electrical components (such as surge suppressor, semiconductor component and capacitor, etc.) that cannot withstand the high-pressure impact of megohmmeter, build a short circuit or disconnect them. In accordance with the rated voltage of the circuit being measured, select the voltage value of the megohmmeter or exclusive insulation resistance meter, it shall comply with the stipulation in Table 10. After the measurement of insulation resistance, the circuit being measured shall be thoroughly discharged to the ground.
6.7.3 Voltage resistance
Conduct voltage resistance test of the drive controller in accordance with the method stipulated in GB/T 18488.2. During the test, the high-voltage terminal to the outer casing and the low-voltage terminal to the outer casing after parallel short circuiting 6.7.7 Alternating hot and humid performance
Place the drive controller, connector and docking piece in a constant-temperature and humidity chamber. Conduct 10 temperature/humidity combined cyclic tests between the temperature -10 ??C ~ 65 ??C in accordance with the method stipulated in GB/T 2423.34-2012. Each cycle shall last 24 h. The variation of temperature and humidity in each cycle is illustrated in Figure 2 a) in GB/T 2423.34-2012.
6.7.8 Corrosion resistance
Place the drive controller into a salt spray box; conduct the test in accordance with the method stipulated in GB/T 2423.17. Test duration shall be 72 h ?? 2 h.
6.7.9 Temperature rise
During the performance test of the electrically driven compressor assembly, simultaneously test temperature rise of various parts of the drive controller in accordance with the method stipulated in Appendix A.
6.8 Durability
Install the electrically driven compressor assembly on the compressor durability test table, then, conduct the test in accordance with the method stipulated in GB/T 21360. In terms of single-cold type and hot-pump type electrically driven compressor assembly, working conditions of durability test are listed in Table 12. In terms of low-temperature hot-pump type electrically driven compressor assembly, working conditions of durability test are listed in Table 13.
Table 12 -- Working Conditions of Durability Test of Electrically Driven Compressor Assembly (I)
Running
Time
Speed
r/min
Voltage
Condensation
Temperature
??C
Evaporation
Temperature
??C
Ambient
Temperature
??C
250 r1 + 500
UN x (1 ?? 5) %
Maximum
Condensation
Temperature
13 ?? 0.5
55 ~ 65 350 r2 x (1 ?? 5%)
63 ?? 0.5 -1 ?? 0.5 300 r1 x (1 ?? 5%) ~
r2 x (1 ?? 5%)a 50 UN x 0.8 x (1 ?? 5) %UN x 1.2 x (1 ?? 5) %
NOTE. r1---designed lowest speed; r2---designed nominal speed; UN---rated voltage. a Working conditions of cyclic test within this speed range shall comply with the following stipulations. a) Within 30 s, rise from 0 r/min to the designed lowest speed, the designed lowest speed lasts for 1 min;
b) Within 15 s, rise 1,000 r/min from the designed lowest speed; after the speed rise, the speed 6.10.2.1 Conduction disturbance
The test on conduction disturbance of the electrically driven compressor assembly can be conducted in accordance with the method stipulated in GB/T 18655.
6.10.2.2 Radiation disturbance
The test on radiation disturbance of the electrically driven compressor assembly can be conducted in accordance with the method stipulated in GB/T 18655.
7 Inspection Rules
7.1 Exit-factory Inspection
7.1.1 Each set of electrically driven compressor assembly shall pass the inspection by manufacturer?€?s quality inspection department before exiting factory.
7.1.2 Inspection items, technical requirements and test methods of electrically driven compressor assembly shall comply with the stipulation in Table 14.
7.2 Sampling Inspection
7.2.1 In electrically driven compressor assemblies that already pass the exit-factory inspection, take samples in accordance with the sampling method stipulated by the manufacturer and the requested sampling size.
7.2.2 Inspection items, technical requirements and test methods of sampling inspection shall comply with the stipulation in Table 14.
7.2.3 If a product does not pass the sampling inspection, re-conduct sampling inspection with doubled sampling size. If there is still one set of products that is unqualified, this batch of products shall be inspected one by one.
7.3 Model Inspection
7.3.1 Under any of the following circumstances, model inspection shall be conducted. a) When stereotype identification is conducted on new products or old products in factory-transfer production;
b) When electrically driven compressor assembly receives model inspection once a year;
c) When the production of electrically driven compressor assembly is resumed after over 1 year of suspension;
d) When there are significant changes in the design, materials and technology of electrically driven compressor assembly that might affect product performance; Appendix A
(Normative)
Temperature Rise Test Method (electrical resistance method)
A.1 General Requirements
A.1.1 When thermometer method is adopted for measurement, the thermometer shall be next to the surface of the component being measured. The measurement shall be completed within 20 s when the test is over. Thermal conduction from the point being measured to the thermometer shall be as favorable as possible.
A.1.2 In order to reduce heat leakage from the thermometer bulb to cooling air, thermal insulation materials shall be utilized to cover the point being measured and the thermometer bulb.
A.1.3 Basis of determining stable working conditions of temperature rise. if temperature rise is not more than 1 ??C within 30 min, this kind of temperature rise can be deemed as stable temperature rise.
A.2 Test Result Calculation
Temperature rise of copper wire winding can be calculated in accordance with Formula (A.1).
Where,
---temperature rise of copper wire winding, expressed in (??C);
---temperature value of surrounding medium during the measurement of the initial electrical resistance of winding (cold state), expressed in (??C);
---temperature value of winding when the thermal test is over, expressed in (??C); ---temperature value of surrounding medium when the thermal test is over, expressed in (??C);
R1---electrical resistance of winding when the temperature is (cold state),

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