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This part is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 21360-2008 Refrigerant compressor for motor vehicle air condition. In addition to a number of editorial changes, the following technical changes have been made with respect to GB/T 21360-2008:
——The standard name is changed to “Refrigerant compressor for automobile air conditioning” (see the front cover; front cover of 2008 Edition);
——Limits for refrigerating performance coefficient and noise of compressors are modified (see 5.7 and 5.8; 5.7 and 5.8 of Edition 2008);
——Requirements and test methods for the internal cleanliness, corrosion resistance, thermal cycle, durability, vibration resistance and the like of compressors are modified (see clause 5 and clause 6; clause 5 and clause 6 of Edition 2008);
——Test conditions of compressors are modified (see 6.2; 6.2 of Edition 2008);
——Test methods for the compression strength of compressors are modified (see 6.3; 6.3 of Edition 2008);
——The method of detecting leakage by using helium is added in the leakage test of compressors (see 6.4).
This standard was proposed by China Machinery Industry Federation.
This standard is under the jurisdiction of National Technical Committee on Automobiles of Standardization Administration of China (SAC/TC 238).
The previous edition of this standard is as follows:
——GB/T 21360-2008.
Refrigerant compressor for automobile air conditioning
1 Scope
This standard specifies the terms and definitions, type and basic parameters, technical requirements, test methods, inspection rules as well as marking, packaging, transportation and storage of refrigerant compressor for automobile air conditioning (hereinafter referred to as “compressor”).
It is applicable to various types of refrigerant compressors for automobile air conditioning which adopt R134a and R407C refrigerants. It also can be taken as reference by compressor of other vehicles or compressor using other environmental refrigerants.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 191 Packaging - Pictorial marking for handling of goods
GB 1922 Petroleum solvents for paints and cleaning
GB/T 2423.17 Environmental testing for electric and electronic products - Part 2: Test method - Test Ka: Salt mist
GB 4706.17 Household and similar electrical appliances - Safety - Particular requirements for motor-compressors
GB/T 5773 The method of performance test for positive displacement refrigerant compressors
GB/T 6283 Chemical products - Determination of water - Karl·Fischer method (General method)
GB/T 13306 Plates
GB/T 22068 Electrically driven compressor assembly for automobile air conditioning
JB/T 4330 Determination of noise emitted by refrigerating and air conditioning equipment
JB/T 7249 Refrigerating equipment - Terms
JB/T 9058-1999 Measuring method of refrigerating equipment cleanliness
3 Terms and definitions
For the purposes of this document, the terms and definitions given in JB/T 7249 and GB/T 5773 as well as the following apply.
3.1
open-type refrigerant compressor
a kind of refrigerant compressor that drives the shaft or other running parts outside the enclosure by the prime mover
3.2
semi-hermetically refrigerant compressor
a kind of refrigerant compressor without shaft seal, which may be dismantled on the site for maintenance of internal parts
3.3
hermetically refrigerant compressor
a kind of refrigerant compressor with the compressor or motor installed in a firmly welded or brazed enclosure
3.4
variable displacement refrigerant compressor
a kind of refrigerant compressor enabling the displacement adjustable by mechanical and (or) electrical methods
4 Type and basic parameters
4.1 Type
By the structural type, compressors may be classified into:
——open-type compressor;
——semi-hermetically compressor;
——hermetically compressor.
4.2 Basic parameters
The basic parameters of compressor include model, used refrigerant, used lubricant type, refrigerating capacity, input power and noise, etc.
5 Technical requirements
5.1 General requirements
Compressors shall be manufactured according to the drawings and technical documents approved via established procedure (or through negotiation between the user and manufacturer).
For the semi-hermetically (hermetically) compressor, its heating capacity, exciting force, voltage fluctuation resistance, electromagnetic compatibility, the alternate humidity of compressor body, the insulation resistance of motor stator winding to enclosure, the voltage resistance of motor stator winding to enclosure, enclosure protection class and performance of drive controller shall be in accordance with GB/T 22068.
5.2 Appearance
The paint film of the paint spraying part of a compressor shall be uniform and firm, and free of defects such as bubbles, peeling, exposed bottom and bumps; the casting surface shall be flat and smooth. The wire sheath of a semi-hermetically (hermetically) compressor shall not be broken and the connector shall not be deformed or damaged.
5.3 Compression strength
The compressor shall be free from leakage and abnormal deformation.
Note: In this test, the tolerance of each rubber sealing element may not be taken as an assessment requirement.
5.4 Leakage
The leakage amount of a compressor shall not be greater than 14g/a.
5.5 Internal cleanliness
The internal cleanliness of a compressor shall meet the following requirements:
a) the cleanliness of an open-type compressor shall meet those specified in Table 1;
b) the cleanliness of a semi-hermetically (hermetically) compressor shall be in accordance with GB/T 22068.
Table 1 Cleanliness requirements of an open-type compressor
Compressor displacement range/(mL/r) ≤200 >200~320 >320~550 >550
Total mass of impurities inside the compressor/mg ≤30 ≤70 ≤100 ≤120
5.6 Internal moisture content
The internal moisture content of a compressor shall not be greater than 1.5×10-3.
5.7 Refrigerating capacity, input power and refrigerating performance coefficient
The measured refrigerating capacity of a compressor shall not be less than 95% of the nominal refrigerating capacity; the measured input power shall not be greater than 110% of the nominal input power. The measured refrigerating performance coefficient of a compressor shall not be less than 95% of the expressed value; that of an open-type compressor shall not be less than 95% of the limits specified in Table 2; and that of a semi-hermetically (hermetically) compressor shall not be less than the limits specified in GB/T 22068.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Type and basic parameters
5 Technical requirements
6 Test methods
7 Inspection rules
8 Marking, packaging, transportation and storage
Annex A (Normative) Determination of the internal cleanliness of compressors
Annex B (Normative) Determination of the internal moisture content of compressors
