NB/T 33025-2020 English PDF (NBT33025-2020)

Delivery: 3 seconds. Download true-PDF + Invoice.
Get QUOTATION in 1-minute: Click NB/T 33025-2020
Historical versions: NB/T 33025-2020
Preview True-PDF (Reload/Scroll if blank)

NB/T 33025-2020: General requirements for swappable battery pack of electric vehicles
NB/T 33025-2020
NB
ENERGY INDUSTRY STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 29.220
CCS K 84
Replacing NB/T 33025-2016
General requirements for swappable battery pack of electric
vehicles
ISSUED ON: OCTOBER 23, 2020
IMPLEMENTED ON: FEBRUARY 01, 2021
Issued by: National Energy Administration
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 6
4 Basic composition and classification ... 8
5 General requirements ... 8
6 Test methods ... 17
7 Inspection rules ... 21
8 Marking, transportation and storage ... 22
Appendix A (Informative) Interchangeability requirements and typical specifications
for swappable battery pack of electric vehicles ... 24
References ... 30
General requirements for swappable battery pack of electric
vehicles
1 Scope
This document specifies the basic composition, general requirements, test methods,
transportation and storage requirements of the swappable battery pack of electric
vehicles (referred to as “swappable battery pack”).
This document applies to the swappable battery pack of electric vehicles using battery
replacement mode.
2 Normative references
The following documents are referred to in the text in such a way that some or all of
their content constitutes requirements of this document. For dated references, only the
version corresponding to that date is applicable to this document; for undated references,
the latest version (including all amendments) is applicable to this document.
GB/T 2423.1, Environmental testing - Part 2: Test methods - Tests A: Cold
GB/T 2423.2, Environmental testing - Part 2: Test methods - Tests B: Dry heat
GB/T 2423.3, Environmental testing - Part 2: Testing method - Test Cab: Damp heat,
steady state
GB/T 2423.17, Environmental testing for electric and electronic products - Part 2:
Test method - Test Ka: Salt mist
GB/T 2423.34, Environmental testing - Part 2: Test methods - Test Z/AD: Composite
temperature/humidity cyclic test
GB/T 4208-2017, Degrees of protection provided by enclosure (IP code)
GB/T 17626.2-2018, Electromagnetic compatibility - Testing and measurement
techniques - Electrostatic discharge immunity test
GB/T 17626.3-2016, Electromagnetic compatibility - Testing and measurement
techniques - Radiated radio-frequency electromagnetic field immunity test
GB/T 17626.4-2018, Electromagnetic compatibility - Testing and measurement
techniques - Electrical fast transient/burst immunity test
GB/T 17626.6-2017, Electromagnetic compatibility - Testing and measurement
techniques - Immunity to conducted disturbances induced by radio-frequency fields
GB/T 17626.8-2006, Electromagnetic compatibility (EMC) - Part 8: Testing and
measurement techniques - Power frequency magnetic field immunity test
GB/T 17626.10-2017, Electromagnetic compatibility - Testing and measurement
techniques - Damped oscillatory magnetic field immunity test
GB/T 17626.12-2013, Electromagnetic compatibility - Testing and measurement
techniques - Ring wave immunity test
GB 18384, Electric vehicles safety requirements
GB/T 19596, Terminology of electric vehicles
GB/T 19666, General rules for flame retardant and fire resistant electric wires and
cables or optical fiber cables
GB/T 29317, Terminology of electric vehicle charging/battery swap infrastructure
GB/T 31466, Voltage ratings of electric vehicles high voltage electricity system
GB/T 32879, General technical requirements for battery box connectors for
replacement of electric vehicles
GB 38031, Electric vehicles traction battery safety requirements
NB/T 10436-2020, General requirements for swapping battery pack cooling
connector of electric vehicle
QC/T 413-2002, Basic technical requirements for automotive electric equipment
QC/T 1023-2015, General requirement of traction battery system for electric
vehicles
QC/T 1067.1, Connector used in automobile wire harness and electrical device - Part
1: Definition, test method and requirement
3 Terms and definitions
Terms and definitions determined by GB/T 19596 and GB/T 29317, as well as the
following ones, are applicable to this document.
3.1
swappable battery pack
Battery pack which is suitable for the fixed installed traction battery pack, electronic
control unit and corresponding auxiliary components, and can be disassembled and
assembled on electric vehicles in a short period of time (not more than 5 minutes for
passenger cars, and not more than 10 minutes for commercial vehicles) with human or
mechanical assistance, and can charge the battery while off-board.
3.2
lock mechanism
Mechanism that fixes the swappable battery pack to the swappable battery pack frame
or electric vehicle.
3.3
the guiding and positioning device
Device used for traveling guidance during the access process and positioning in a fixed
position of the swappable battery pack.
3.4
battery pack coupler
Including the swappable battery pack electrical coupler and the swappable battery pack
cooling connector.
The swappable battery pack electrical coupler, a special electrical coupler that realizes
the conductive connection between the swappable battery pack and the electric vehicle,
or between the swappable battery pack and the charging rack, is composed of an electric
coupler plug and an electric coupler socket-outlet.
The swappable battery pack cooling connector, referred to as “cooling connector”, is a
fluid coupler that realizes the conduction of coolant between the swappable battery pack
and the electric vehicle, or between the swappable battery pack and the charging rack.
It is composed of a cooling coupler plug and a cooling coupler socket-outlet.
3.5
thermal management system
It is provided with the functions of temperature measurement and alarm for the internal
space, modules, and coupler poles of the battery pack, and the ability to intervene when
the temperature exceeds the standard, so that the battery module always works within
the set temperature range.
b) It shall be provided with the function of managing the charging and discharging
parameters of the swappable battery pack.
c) It should be provided with the function of thermal management and control of the
swappable battery pack.
d) It may have the function of balancing the battery cell or battery module.
e) It shall be provided with a CAN communication interface to realize data
communication with other vehicle controllers or off-board chargers.
5.2 Functional requirements
5.2.1 Swappable battery pack coupler
The structure and performance of the swappable battery pack coupler shall meet the
requirements of GB/T 32879; the structure and performance of the swappable battery
pack cooling connector shall meet the requirements of NB/T 10436.
5.2.2 Electronic control unit
a) It shall be provided with the function of collecting data such as the total voltage
or current of swappable battery pack, the voltage of battery cell or battery module,
the temperature of battery (not less than 4 monitoring points), and the temperature
of strong electrical contact of the swappable battery pack connector.
b) It shall be provided with the function of managing the charging and discharging
parameters of the swappable battery pack.
c) It shall be provided with a CAN communication interface to realize data
communication with the vehicle controller or the off-board charger.
d) It should be provided with the ...