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GB/T 39631-2020 English PDF (GBT39631-2020)

GB/T 39631-2020 English PDF (GBT39631-2020)

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GB/T 39631-2020: General specification for servo motor system in air conditioning compressor of new energy vehicles
GB/T 39631-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.160.30
K 24
General specification for servo motor system in air
conditioning compressor of new energy vehicles
ISSUED ON: DECEMBER 14, 2020
IMPLEMENTED ON: JULY 01, 2021
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 5 
4 Operating conditions ... 7 
5 Types and interfaces ... 8 
6 Technical requirements and test methods ... 8 
7 Safety requirements ... 22 
8 Inspection rules ... 22 
9 Delivery preparation ... 27 
Appendix A (Informative) Measuring method of internal cleanliness of the motor
... 29 
Appendix B (Normative) Determination of moisture content of the motor ... 31 
References ... 32 
General specification for servo motor system in air
conditioning compressor of new energy vehicles
1 Scope
This Standard specifies the terms and definitions, operating conditions, types
and interfaces, technical requirements and test methods, inspection rules, and
delivery preparations for servo motor system in air conditioning compressor of
new energy vehicles.
This Standard applies to the servo motor system (hereinafter referred to as the
"system") for (semi-)hermetically positive displacement refrigerant compressor
of the air conditioning compressor of new energy vehicles, as well as the design,
manufacture, inspection and acceptance of servo motors (hereinafter referred
to as "motors") and servo motor drives (hereinafter referred to as "drives") that
constitute the system. It can be implemented by reference for other structural
types of compressor servo motor systems.
2 Normative references
The following documents are indispensable for the application of this document.
For dated references, only the dated version applies to this document. For
undated references, the latest edition (including all amendments) applies to this
document.
GB/T 191, Packaging - Pictorial marking for handling of goods
GB/T 755-2019, Rotating electrical machines - Rating and performance
GB/T 2828.1-2012, Sampling procedures for inspection by attributes - Part
1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot
inspection
GB/T 6283, Chemical products - Determination of water Karl Fischer method
(general method)
GB/T 7345-2008, General requirements for electrical machine for automatic
control system
GB/T 10069.1, Measurement of airborne noise emitted by rotating electrical
machines and the noise limits - Part 1: Method for the measurement of
airborne noise emitted by rotating electrical machines
The fluid medium that realizes the refrigeration cycle in the refrigeration system.
Note: Usually, it also includes changes in the state of the fluid. It absorbs heat
at low temperature and low pressure, and discharges heat at higher
temperature and pressure.
3.9
Compatibility
The character that when two or more materials and the test working medium
(refrigerant + refrigerating machine oil) are used together in a hermetically
refrigerant compressor, they will not have harmful effects on each other.
4 Operating conditions
4.1 Electrical operating conditions
Unless otherwise specified, the input rated DC voltage is preferably 24 V, 48 V,
60 V, 72 V, 120 V, 192 V, 240 V, 288 V, 320 V, 336 V, 360 V, 380 V, 442 V, 480
V, 500 V, 580 V, 600 V.
4.2 Environmental conditions
4.2.1 Environmental conditions for use
Unless otherwise specified, the environmental conditions for the use of the
system shall comply with:
-- Environmental medium: refrigerant and lubricating oil (refrigerant shall be
R134a, R407C, R410A, R1234yf or as specified by product-specific
technical conditions; lubricating oil shall be POE, PAG, PVE, FVC or as
specified by product-specific technical conditions);
-- Operating environment temperature: it is -15 °C ~ 85 °C for common type,
-25 °C ~ 85 °C for low temperature type, and -35 °C ~ 85 °C for ultra-low
temperature type.
4.2.2 Storage environmental conditions
The temperature of the storage environment is -40 °C ~ 35 °C; there shall be
measures to prevent moisture and vibration; the storage environment shall be
well ventilated, and no corrosive gas is allowed around.
4.2.3 Test environmental conditions
If there are no other regulations, each test shall be carried out under the
following climatic conditions:
The test shall not be repeated. When it is required, a test is allowed after
installation and before operation, and the test voltage value shall not exceed
80% of the specified voltage.
The inspection test points of the drive shall conform to:
a) The main circuit and the control circuit share the same reference ground.
The inspection test point is the power input terminal of the main circuit.
Short-circuit the power input terminal during the test;
b) The main circuit and the control circuit do not share the same reference
ground. The inspection test point includes the power input terminal and
the control signal terminal of the main circuit. Short-circuit the power input
terminal and the control signal terminal respectively during the test.
6.5 Insulation resistance
6.5.1 Technical requirements
Under normal test conditions and the extreme low temperature conditions which
are specified in the product-specific technical conditions, the insulation
resistance between the motor stator winding and the shell, and between the
inspection test point of the driver and the protective ground terminal (the
exposed part of the shell) shall not be less than 50 MΩ; under extreme high
temperature conditions, the insulation resistance shall not be less than 10 MΩ;
the insulation resistance, after being subjected to a constant damp heat test,
shall not be less than 2 MΩ.
The voltage value of the insulation resistance meter that is selected for the
insulation resistance check shall meet the requirements of Table 1.
6.5.2 Test method
Perform the test according to 5.18.2 of GB/T 7345-2008. After the test, each
loop shall be electrically connected to the grounded part to discharge it.
6.6 Insulation between winding turns
6.6.1 Technical requirements
Use the impulse waveform comparison method to test the insulation between
winding turns. The amplitude, oscillation period, waveform area difference and
area of waveform difference of the test waveform shall meet the requirements
of the product-specific technical conditions.
6.6.2 Test method
6.9.2 Test method
After the motor reaches a stable non-operating temperature, use a resistance
measuring meter to measure the DC phase resistance of the motor stator
winding, or use other methods that can ensure accuracy to measure; convert it
to the equivalent resistance value at 20 °C.
6.10 No-load speed
6.10.1 Technical requirements
The motor runs in a steady state under no-load state; its no-load speed shall
meet the requirements of the product-specific technical conditions.
6.10.2 Test method
The motor is equipped with a dedicated driver to measure its no-load speed.
6.11 Rated data
6.11.1 Technical requirements
When the motor outputs the rated torque, the system rated current (driver input
current) and rated speed shall meet the requirements of the product-specific
technical conditions.
6.11.2 Test ...
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