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[China]
Trade Verify
Address: No.1, Yixiang ,Liwu Industrial Park,Liwuyuan Village,Xihu District, Shilong Town,Dongguan 523325,Guangdong ,China
Contact name:James Lai
Dongguan Ampfort Electronics Co., Ltd. |
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M6 Brass NPT Screw Threaded Car In-car Temperature Sensor 5k Ohm 3950
Working principle Of The In-car Temperature Sensor
The higher the interior temperature indicated by the interior
temperature sensor, the more the hybrid door moves toward the
colder direction, and the lower the temperature of the air outlet.
Anyway, the lower the interior temperature indicated by the
interior temperature sensor, the hotter the hybrid door becomes.
Moving in the direction, the higher the temperature of the air
outlet. The temperature sensor in the car is generally installed at
the lower end of the dashboard. It is a thermistor with a negative
temperature coefficient. The resistance of the thermistor will
gradually decrease as the temperature rises. Its function is to
detect whether the temperature in the car reaches the set value to
control the work of the air-conditioning system.
Specification Of The In-car Temperature Sensor
| Name | NTC Temperature Sensor |
| Application | Automotive temperature control module |
| Installation | Threaded fixing |
| Housing Material | Brass |
| Cable | PVC,FEP,XLPE |
| Accuracy | 1% |
| Customized | Yes |
| Brand | AMPFORT |
| Origin | Dongguan,Guangdong,China |
| Manufacturer | AMPFORT |
Features Of The In-car Temperature Sensor
● Application description: Suitable for automotive internal
temperature control module;
● Assembly method: Threaded fixation.
● The assembly method is simple and firm.
● The resistance value and B value can be determined according to customer needs.
● Hardware and wires can be customized.
Dimension Of The In-car Temperature Sensor (mm)
Method of detecting temperature sensor in car
(1) Voltage measurement
Remove the air conditioner controller, but the connector is not
disconnected, turn the ignition switch to the "ON" position, use a
multimeter to measure the voltage between the controller connection
terminals TR and SG-3 (Figure 5-17), the measured voltage value
Should decrease with the increase of temperature, the voltage
should be 1.8～2.2V at 25℃, and 1.2～1.6V at 40℃.
(2) Resistance measurement
Remove the temperature sensor in the car and measure the resistance
between terminal 1 and terminal 2 of the connector. The resistance
should decrease with the increase of temperature. At 25℃, the
resistance should be 1.65～1.75kΩ, and at 40℃, the resistance should
be 0.55～0.65kΩ. If it is not normal, replace the temperature sensor
in the car.
The in-car temperature sensor is also called the indoor temperature
sensor. It is one of the important sensors of automatic air
conditioning. It will affect the temperature of the air at the
outlet, the speed of the blower, the position of the intake door,
and the position of the mode door. It is usually installed in the
suction device behind the dashboard.
Recommended Products Of The In-car Temperature Sensor
Test Item Of The In-car Temperature Sensor
| Test Item | Test Standard | Test method | Performance requirements |
| Zero Power Resistance | IEC 60539-1 | Immerse samples in the constant temperature bath at 25℃±0.005℃,test steady resistance | Resistance tol ±1%
|
| B value | IEC60539-1 | Immerse samples in the constant temperature bath at 25℃,50℃(or 85℃), test steady resistance,and calculate B value | Resistance tol ±1%
|
| Free fall | IEC60068-2-32
| Fall height: 1.5±0.1m,Surface: Cement , 1 time | No obvious damage, R25 △R/R≤±1%
|
| Insulation | IEC60539-1
| 500V pressure on insulation shell test insulation resistance | >500MOhm
|
| Withstand voltage | IEC60539-1 | Withstand voltage: 1500V/AC ,Leakage current:2mA Lasting: 60sec
| No obvious damage
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| Tension | IEC60068-2-21 | Pull uniform speed at the end, F>4.0KG(requested by customer)
| No obvious damage, R25 △R/R≤±1%
|
| Vibration | Q/HBm 108-94 | Test frequency: 10~500Hz,swing: 1.2mm acceleration: 30m/s2 Direction X,Y,Z Time:8Hour/direction | No obvious damage, R25 △R/R≤±1%
|
| Steady humidity and heat | IEC60068-2-78 | Temp:40±2℃ Humidity:92-95%RH Time:1000±24Hour | No obvious damage, R25 △R/R≤±1%
|
| Thermal time constant | EC60539-1 | Immerse in 25℃ water,after thermal balance,immerse in 85℃,resistance arrives 63.2%,calculate total time | <10 sec
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| High temperature storage | IEC60068-2-2 | Temp:125℃±5℃ Time: 1000±24Hour | No obvious damage, R25 △R/R≤±1% |
| Cold and thermal shock | IEC60068-2-14 | -40℃~+125℃ T1:30min Cycle time:1000
| No obvious damage, R25 △R/R≤±1%
|
| Knock experiment | IEC60068-2-77 | Acceleration:250m/s2 Pulse lasting: 6ms Knock times: 1000 Recovery time: 2 Hour
| No obvious damage, R25 △R/R≤±1%
|
| Low temperature storage | IEC60068-2-1 | Temp: 40±2℃ Time: 1000±24Hour
| No obvious damage, R25 △R/R≤±1%
|
| Salt spray | IEC60068-2-11 | Temp: 35±2℃ Collection hour : 1.0mL~2.0mL Time: determine per as actual demand | No obvious damage, R25 △R/R≤±1% |
