GB/T 39631-2020 PDF English
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General specification for servo motor system in air conditioning compressor of new energy vehicles
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GB/T 39631-2020: PDF in English (GBT 39631-2020) 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 method
The motor is equipped with a dedicated driver, and applied with the rated torque,
to measure the rated current and rated speed of the motor.
6.12 Operating voltage range
6.12.1 Technical requirements
The speed-torque characteristics of the system within the operating voltage
range shall meet the requirements of the product-specific technical conditions.
6.12.2 Test method
Set the rated voltage of the system at the highest operating voltage and the
lowest operating voltage respectively; test the maximum operating torque at
different operating speeds under different operating voltages; the number of
measurement points within the system speed range shall not be less than 10.
Plot the speed-torque characteristic curve.
6.13 Speed adjustment range
6.13.1 Technical requirements
The system shall be able to withstand the maximum operating heating test that
is specified in 5.59 of GB/T 37123-2018.
6.17.2 Test method
Assemble the system into an electrical driven compressor assembly. According
to the air-conditioner full-operating-condition performance test parameter table
of 4.2.3 in GB/T 37123-2018, select the maximum operating heating condition
for the test. When the air-conditioner is stopped for 3 minutes, restart it for
continuous operation for 1 hour; however, the overload protector is allowed to
trip within the first 5 minutes of operation, and no action is allowed thereafter. If
the overload protector does not reset within the first 5 minutes of operation, but
does reset within 30 minutes of shutdown, it shall run continuously for 1 h.
For the overload protector that is manually reset, if it trips within the first 5
minutes, it shall be reset forcibly after 10 minutes of tripping, and it shall be able
to run for another 1 h thereafter.
6.18 Protection level
6.18.1 Technical requirements
Assemble the system into an electrical driven compressor assembly; the
enclosure protection class shall meet the requirements of 5.7.4 in GB/T 22068-
2018, where the drive enclosure protection class shall reach IP54. After the
enclosure protection class test, the re-tested drive insulation resistance shall be
greater than 50 MΩ; the re-tested drive insulation dielectric strength shall meet
the requirements of 6.4.
6.18.2 Test method
The system is tested in accordance with 6.6.11 of GB/T 22068-2018.
6.19 Internal cleanliness
6.19.1 Technical requirements
The cleanliness of the motor shall meet:
a) The total mass of internal impurities shall not be greater than the value
specified in Table 5;
b) The particle diameter of internal impurities shall not be greater than 0.25
mm.
6.19.2 Test method
Test according to 6.6.1 of GB/T 22068-2018, or refer to Appendix A for test.
6.25 Mechanical strength
6.25.1 Technical requirements
The drive shell shall not be deformed.
6.25.2 Test method
Perform the test according to 6.7.1 of GB/T 22068-2018.
6.26 Temperature rise
6.26.1 Technical requirements
Assemble the system into an electrical driven compressor assembly (or a
dedicated compressor test device) for temperature rise test; the temperature
rise of the motor shall meet the temperature rise limit specified in 8.10 of GB/T
755-2019. The temperature rise of the drive shall meet the requirements of
5.7.9 in GB/T 22068-2018.
6.26.2 Test method
Perform the test according to 6.7.9 of GB/T 22068-2018.
6.27 Voltage fluctuation resistance
6.27.1 Technical requirements
Assemble the system into an electrical driven compressor assembly (or a
dedicated compressor test device), which shall be able to withstand the voltage
fluctuation test that is specified in 6.9 of GB/T 22068-2018.
6.27.2 Test method
Perform the test according to 6.9 of GB/T 22068-2018.
6.28 Noise
6.28.1 Technical requirements
When it is required, the measured value of the single-point maximum noise of
the system in the no-load state shall not be greater than the provisions of Table
7, or shall meet the requirements of the product-specific technical conditions.
Assemble the system into an electrical driven compressor assembly (or a
dedicated compressor test device), which shall be able to withstand the
electrostatic discharge immunity test that is specified in 5.10.1.3 of GB/T 22068-
2018.
6.29.1.3.2 Test method
The system is tested in accordance with 6.10.3 of GB/T 22068-2018.
6.29.2 Electromagnetic disturbance
6.29.2.1 Conduction disturbance
6.29.2.1.1 Technical requirements
Assemble the system into an electrical driven compressor assembly (or a
dedicated compressor test device), which shall be able to withstand the
conduction disturbance test that is specified in 5.10.2.1 of GB/T 22068-2018.
6.29.2.1.2 Test method
The system is tested in accordance with 6.10.2.1 of GB/T 22068-2018.
6.29.2.2 Radiation disturbance
6.29.2.2.1 Technical requirements
Assemble the system into an electrical driven compressor assembly (or a
dedicated compressor test device), which shall be able to withstand the
radiation disturbance test that is specified in 5.10.2.2 of GB/T 22068-2018.
6.29.2.2.2 Test method
The system is tested in accordance with 6.10.2.2 of GB/T 22068-2018.
6.30 Durability
6.30.1 Technical requirements
Assemble the system into an electrical driven compressor assembly (or a
dedicated compressor test device), which shall be able to withstand the
durability test that is specified in 5.8 of GB/T 22068-2018.
6.30.2 Test method
The system is tested in accordance with 6.8 of GB/T 22068-2018.
6.31 Reliability
a) Before the new product design is confirmed;
b) When the design or process of the identified product is changed;
c) When the key raw materials and components of the identified product are
changed;
d) When the manufacturing site of the product is changed.
8.2.2 Number of prototypes
Randomly select six prototypes from the batch of products, four of which are
used for identification inspection, and the other two are kept for future use.
When the number of finalized batch products is less than six, all of them shall
be submitted for identification inspection. However, the number of prototypes
for identification inspection shall not be less than two.
8.2.3 Inspection procedures
The identification inspection items, basic sequence and prototype number shall
be carried out in accordance with the provisions of Table 8 according to the
product-specific technical conditions.
8.2.4 Evaluation of inspection results
8.2.4.1 Qualified
If all items of the prototypes for identification inspection meet the requirements,
the identification inspection is qualified.
8.2.4.2 Unqualified
As long as any item of a prototype does not meet the requirements, the
identification inspection is unqualified.
8.2.4.3 Accidental failure
When the identification department confirms that a certain unqualified item of
the system is an accidental failure of an isolated nature, it is allowed to take a
spare prototype from the submitted prototypes every time to replace the failed
prototype, and make up all the items before the failure (including the failure).
Then, continue the test; if any item of another prototype does not meet the
requirements, the identification inspection is unqualified.
8.2.4.4 Performance degradation
After the prototype has undergone the environmental test, performance
degradation that does not affect its use is allowed; the allowable value of
The items and basic sequence of Group A inspection shall be in accordance
with Table 8.
Group A inspection can be sampled or carried out one by one. Sampling is
carried out according to the single sampling plan in accordance with the
inspection level II in GB/T 2828.1-2012; the acceptance quality limit (AQL value)
is negotiated and selected by the user and the manufacturer.
During the one-by-one inspection, if one or more items of the system is/are
unqualified, the system shall be a non-conforming product.
If the group A inspection is qualified, the user shall receive the whole batch,
except for the unqualified system in the sampling.
If the group A inspection is unqualified, after the defect is eliminated and the
unqualified products are removed, the group A inspection shall be submitted
again.
8.3.3 Group C inspection
8.3.3.1 Items and basic sequence of Group C inspection
The items and basic sequence of Group C inspection shall be in accordance
with Table 8.
8.3.3.2 Inspection timing and period
In any of the following situations, Group C inspection shall generally be carried
out:
a) Inspection of related items;
b) When there is a large deviation between the group A inspection results
and the identification inspection results;
c) Periodic inspection. Unless otherwise specified, it shall be carried out at
least once every two years;
d) When the government or industry regulates product quality or when the
user requires.
8.3.3.3 Inspection rules
Group C inspection prototypes shall be selected from the products that have
passed the Group A inspection. The prototypes that have not been tested in
Group A shall be tested for Group A inspection items; only when the inspection
is qualified, can they be tested for the remaining items of Group C inspection.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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