At present, Xiao Bian insists that it is very important to understand the power lithium battery to choose electric vehicles. Today Xiaobian teaches you five steps to analyze the safety of electric vehicles.
The first bomb: first look at the three-dimensional structure of the electric car
In this picture, it is clear that the battery is distributed on the chassis of the car.
Tesla electric car chassis
2nd bomb: Make sure the battery is distributed on the chassis, but not a battery, but a lot of battery strings. Take the cylindrical lithium battery as an example, the truth on the above picture.
The series connection of the batteries requires extremely good consistency, that is, the capacity of each section must be the same. Otherwise, when charging, one is not full, one is overcharged, and the danger is very large.
If you use fast charge instead of slow charge at this time, the energy is input into the closed space in an instant, and the risk factor is magnified many times.
Xiaobian strongly recommends that the riders give priority to slow charging, one is safety, and the other is good for battery life.
The third bomb: the cause of thermal runaway
As a high-energy carrier, the safety of the power battery comes from its energy release, including the release of electrical energy and the release of chemical energy. The safety problem caused by chemical energy release is ultimately manifested by combustion or explosion caused by thermal runaway and thermal runaway expansion.
Episode 4: Reaction from heat abuse to thermal runaway
5th bomb: 7 stages of the thermal runaway process (visual inspection is within 2 seconds)
Thermal runaway phase, irreversible and uncontrollable
Based on the above analysis, in order to maintain the safety of electric vehicles, power battery manufacturers and users shoulder important responsibilities.
1. User: Drive carefully and avoid collision. Observe the road surface to avoid the bottom battery being squeezed or puncture. When charging, you must strictly abide by the requirements. If you can charge slowly, you should not choose fast charging. Do not overcharge or over discharge.
2, power battery suppliers: improve the consistency of battery cells; BMS can respond and control the danger in a timely manner.
3.96mm Wire To Board Connectors
3.96mm Wire To Board Connectors are avialable in different terminations and sizes intended for use on a variety of applications. These connectors provide power and signal with different body styles, termination options, and centerlines. To find the wire to board set required, click on the appropriate sub section below.
Antenk offers a wide variety of wire-to-board connector solutions that fit applications requiring high-power solutions or microminiature options.
3.96mm (0.156") Pitch Wire to Board Connectors delivering 7.0A and 600V per circuit in an industry-standard 3.96mm pitch, power application connectors are ideal for low- to mid-power wire-to-board and board-to-board applications
3.96mm Pitch Board-to-Wire Connectors are rated for up to 10 Amps max. when using 16 AWG wire. The locking mechanism provides a clear and tactile click that prevents incomplete mating and incorrect insertion. The pin header comes with a guide post to prevent reverse insertion on the PCB. The lance is part of the housing instead of being a part of the terminal, which prevents tangled wires during assembly. The wall structure between the contacts helps to isolate the contacts and prevents short circuits between contacts. The DF63 series is capable of being potted, up to 5mm. Glass-reinforced resin is used on the pin header to prevent solder cracks due to thermal contraction. Keying options prevent incorrect connections due to the use of multiple connectors on the same board. When using identical pin counts, two versions are available with different keying options.
3.96mm Pitch Board-to-Wire Connectors Features
Capacity to handle a maximum of 10A when using 16 AWG wire MAX 10A/pin AWG ♯16 7A AWG ♯18
A locking mechanism that ensures a secure and completed connection: The locking mechanism delivers a clear and tactile click the prevents incomplete mating
Prevents incomplete insertion of the crimp contact
Prevents incorrect insertion between different poles
Reverse mounting prevention to PCB: The pin header is equipped with a guide post to prevent reverse insertion on the PCB
Molded lance design: The lance is actually part of the housing instead of being a part of the terminal. This prevents tangled wires during assembly
Short-circuit prevention: The wall structure between the contacts helps to isolate the contacts and prevents short circuits between contacts
Capable of being potted, up to 5mm
Solder Crack prevention: Glass-reinforced resin is used on the pin header to prevent solder cracks due to thermal contraction
Keying options prevent incorrect connections due to the use of multiple connectors on the same board. When using identical pin counts, two versions are available with different keying options
Corresponds with 7.92mm pitch: Also corresponds with 7.92mm pitch with 2 or 3 pos. without pins
Pitch 3.96mm Wire to Board Connectors Specification
Pitch:3.96mm
Circuits:2-12P
Wire AWG:18-24
Current:7.0 A
Rated Voltage: 250V
Operate TEMP: -25℃~85℃
Resistance:1000/min(MΩ)
Withstanding Voltage:1500V
Max wire(Diameter) : 2.5
Pitch 3.96mm Wire to Board Connectors Features and Benefits
Smallest pitch for positive lock Wire-to-Board crimp system
Provides space savings for mounting other components
mating retention with low mating and unmating forces
Wide header variations to provides customers with many choices and design flexibility
Easy to mate and unmate
Space saving SMT Mounting that provides assembly and cost efficiencies
Automated assembly reduces manual labor processes
Pitch 3.96mm Wire to Board Connectors Application industry:
Automotive
Electronic modules
Consumer
Air conditionerMobile POS terminalsNotebook PCSmart metersTVsTelevisions UAVs/Drones
Industrial
Servo motor
Medical
Patient Monitor
This is not a definitive list of applications for this product. It represents some of the more common uses.
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ShenZhen Antenk Electronics Co,Ltd , https://www.antenksocket.com