In recent years, the new energy vehicle industry has exploded, and China has become the world's largest new energy vehicle market. The limited issuance of fuel license plates in some cities to encourage the purchase of new energy vehicles, coupled with the recent soaring oil prices, has led to a substantial increase in the number of new energy vehicles.

Recently, the latest data released by the Fire and Rescue Bureau of the National Emergency Management Department showed that new energy vehicles caught fire in the first quarter.640Up, year-on-year increase32%This is higher than the average increase in vehicle fires. Considering the cumulative sales of new energy vehicles in China in the first quarter12510,000 vehicles, if simply calculated, equivalent to every1There are thousands of new energy vehicles.5The car caught fire. As a new energy owner, hearing this data, I will inevitably wonder if I will be one of the five ten thousanders. From the time dimension, it is equivalent to the domestic average daily occurrence.7This data is also worrying about the fire of new energy vehicles.

Electric cars cannot escape.“spontaneous combustion”This is also a security issue that needs to be addressed urgently. The core part of the electric car is the battery pack, and a large number of batteries are placed under the chassis of the car. "Spontaneous combustion" is usually caused by the thermal runaway of the battery. For the personal safety of the car owner, car companies use various means to reduce the risk of thermal runaway of the battery, but there is still no way to prevent it, so it can be found earlier. Spontaneous combustion can get out of the danger zone earlier and provide more security.

Lithium battery thermal runaway will release a lot of gas, the main gas isH2、CO、CO2、CH4etc. Under normal circumstances, the content of these gases in the air is in additionCO2The outside is very low, so our customers pass the test.H2、CO、CH4The concentration changes to determine whether the battery is thermally out of control.

Here to recommend you a hydrogen sensorTGS2615-E00，TGS2615-E00It's JapanFIGAROResearch and development of semiconductor principle sensors,Fast response, low power consumption, small size，TGS2615-E00In order to eliminate the influence of large molecules such as alcohol interference gasFilter layer, showingSensitivity characteristics for extremely high selectivity to hydrogen. Now most people like to place aromatherapy and other scented objects in the car. The volatilized gas contains various organic gases such as alcohols and esters. Generally, sensors without filters will be disturbed and false alarms will be reported. ThereforeTGS2615-E00It is very suitable for detecting the thermal runaway of lithium batteries.H2。

At the same time,TGS2615-E00The application circuit is also very simple.

  Provide a stable heating voltage to the sensor, connect a fixed resistor voltage division in series, and sample the fixed resistor voltage division.

The following isTGS2615-E00The basic parameters:

  Detection range:40-4000ppm

  Circuit voltage:5.0±0.1V

  Heating voltage:4.25±0.05V

  Heater load resistance:15Ω

  Heater power consumption:212±20mW

For details, please consult http://www.apollounion.com/