Autonomous Driving Vents| Automotive Vents

Headlamp, Rear lamp, Fog lamp, Turn signal lamp, Grille lamp, Interior lamp

The lamps are both functional and decorative. According to the function, it can be divided into: headlamp, rear lamp, fog lamp, turn signal lamp, grille lamp, interior lamp, license plate lamp, etc. Due to the variety of lamps, lamp faults are more common, more difficult to hide, and more vulnerable to consumer complaints.

One of the most frequent lamp faults is lamp fogging, and the other is insufficient lighting. The cause of lamp fogging is complex, involving environment, lamp structure, internal air flow direction and speed. One important reason for insufficient lighting is that lamps are less tolerant to environmental changes. Venting products can significantly relieve both faults.

The functions of venting products on the lamp are as follows: 1. Moisture permeability. When the concentration of humidity inside the lamp is high, it lets the moisture discharge from the inside of the lamp to prevent fogging. 2. Ventilate and balance the internal and external pressure difference caused by the temperature change of the lamp. 3. Heat dissipation to prevent internal temperature from raising too high, protect the internal electronic devices, and avoid insufficient lighting.

Being deeply engaged in the automotive industry for many years, IPRO has developed deep understandings and conducted research on the cause of lamp fogging and the methods of defogging. IPRO gray vent has high moisture permeability and stable performance, which has been proved by famous automobile enterprises and played a very significant role in lamp defogging. In addition, IPRO ePTFE venting products with different air and moisture permeability capabilities can be tested synchronously with the main engine plant to screen out optimal solutions for specific projects.

Parameters of a Typical Gray Adhesive Pressure Vent:

• Material: 100% ePTFE
• Temperature Range: -40 to 120℃
• Typical Airflow: 150ml/min/cm2@7kPa
• WEP: 90kPa
• Oil Rating: 7

Products: Gray Adhesive Pressure Vent, Blue Adhesive Pressure Vent, White Adhesive Pressure Vent and Vent Cap

Engine controller, Oil pump controller, ABS controller, Electronic controller

Auto controller is the brain of auto, which plays a key role in vehicle performance and safety. Like ordinary computers, ECU is composed of chip microprocessor (CPU), memory (ROM, RAM), input/output interface (I/O), analog-to-digital converter (A/D), shaping, driving and other large-scale integrated circuits. If the vehicle controller fails, the consequences are very serious.

For ECU, the highest priority is product reliability, and venting product is the key. This is because ECU is closely positioned to the engine, where temperature changes violently; and it also generates a lot of heat when working, leading to two risks: 1. Local temperature concentration will lead to excessive heat, resulting in ECU failure. 2. The temperature change creates pressure and destroys the seals, resulting in possible external pollutants to enter and cause the ECU to fail. 3. Dust particles enter the shell, reducing product performance and service life.

IPRO venting products, on the one hand, can help ECU with heat dissipation and prevent excessive local temperature raise; On the other hand, thanks to its excellent breathable performance, can equalize pressure caused by temperature change, and help ECU to maintain good performance for a long time. In addition, after years of technical accumulation, the high-temperature resistant products developed by IPRO can ensure excellent waterproof and breathable performance even when exposed to long-term high-temperature environment. The snap-fit vent productions can work at 150 degrees for long, and the maximum working temperature of the weldable membrane can reach 250 degrees.

Parameters of a Typical ECU Vent:

• Minimum Water Entry Pressure: 600 mbar*1min
• Minimum Airflow: 18L/H@70mbar
• IP rating: IP67 / IP69K
• Oil Rating: 7
• Operating Temperature Lower Limit: -40℃
• Operating Temperature Upper Limit: 150℃

Products: Snap-fit Vent, Welding vent

Navigation system, Infotainment system, Telematic control units

Compared with the external environment of the car, the working environment for components inside the car is not so “bad”. But with the development of intelligent car cabins, self-driving, and Internet of auto, the number and precision of electronic devices inside the vehicle are increasing. The voice interaction system in the car also includes more microphones and speakers. If the electronic equipment in the vehicle fails, it will also lead to serious consequences, so protective measures are required. Different parts of audio equipment have different requirements for protection. For example, the main control panel in the car needs IPRO vents to balance the pressure difference and a IPRO pressure vent to transmit sound; and the rear cover of the car needs to be equipped with IPRO waterproof acoustic vents. Installing venting products is an economic and effective way to improve the reliability of electronic equipment in the vehicle.

When the electronic equipment in the vehicle works for a long time, it will face the following risks: I. Dust accumulates and enters the shell, resulting in equipment failure. II. The temperature changes cause the equipment to work under pressure, resulting in seal damage and weakened protection.

IPRO waterproof and air permeability solutions not only ensures product performance, but also provides excellent stability, relieving clients of worries.

Products: Adhesive Pressure Vent, Weldable Membrane, Acoustic Vent

Gearbox, SCR, Urea dosing pump, Front-wheel drive module, Rear-wheel drive module, EPS

Powertrain refers to a series of parts and components in the vehicle that generates and transmits the power on to the road. It contains the most crucial vehicle technology, which determines the mobility, economic and environmental aspects of the vehicle.

Most powertrain components are placed on the vehicle chassis and exposed to the external environment, meaning while in daily driving, when in rainy days or when the vehicle wades in water, components may be directly impacted by rapid water pressure and temperature change, even air pressure change caused as a result.

IPRO Snap-fit Vent, IPRO Screw-in Vent, and IPRO Weldable Membrane have excellent pressure resistance performance, allowing vehicle chassis to withstand the impact of water pressure when immersed in water. Also, an excellent air-flow allows chassis components to balance inside and outside pressure differences when the external environment changes, in order to prevent leakage. IPRO ISO16750 certified products have passed iced-water immersion, high and low temperature impact tests to meet application requirements of vehicle chassis.

Products: Snap-fit Vent, Screw-in Vent, Weldable Membrane

Power battery pack, Battery controller, Drive motor, Motor controller, Reduction gearbox, DCDC, OBC, Vehicle controller, Thermal management system, 48V battery pack, Inverter, PCU, Generator

At present, new energy vehicles mainly refer to battery powered vehicles, including pure electric vehicles, hybrid vehicles, plug-in hybrid vehicles and 48V light hybrid vehicles. Compared with traditional vehicles, the chassis of battery powered vehicles has much more electronic equipment, such as battery pack, battery controller, drive motor, motor controller, reduction gearbox, DCDC, thermal management system, and charging module, etc. How to ensure the long-term stability of these devices is a challenge.

The driving motor of new energy vehicles has high powers and generates large amount of heat. In addition, due to the gear movement inside the motor, the internal pressure will often change during the operation of the equipment. It is necessary to equalize pressure via ventilation devices. When the driving motor is exposed to the external environment, contacts of oil vapor in the vehicle, external dust and various liquids will occur, thus require waterproof and dustproof breathable products. IPRO snap-fit vent has high protection level with large air permeability, which can meet the requirements of automobile customers.

The following is a successful case of IPRO. The finished product parameters of IPRO Snap-fit Vent:

• Water Pressure Resistance: 60kPa
• Air Permeability: 300ml/ min@7kPa
• Operating Temperature: -40 ~ 150 degrees
• Protection Performance: IP67 / IP69K

As the core component of new energy vehicles and also one of the most valuable components, the battery pack is located on the vehicle chassis and is greatly affected by the environment. Therefore, relevant protection becomes extremely important. Due to large internal space, the battery pack needs a high volume of air permeability. Also, because of the complex composition of the battery, the breathable film needs to have high chemical corrosion resistance. IPRO’s rich reserves of ePTFE membrane and various product forms can help automobile manufacturers in the following aspects:

• Multiple product forms to improve the flexibility of customer product design.
• Large air permeability, improve air permeability efficiency per unit area and reduce the cost as a whole.
• Excellent consistency of ePTFE membrane makes the product extra stable

The following are the product parameters of one case:

• Water Pressure Resistance: 30kPa（60s）
• Air Permeability:  400ml/ min@7kPa
• Degree of Protection: IP67
• Operating Temperature: -40℃ to +150℃

The effective working of the driving motor is realized by the motor controller. During driving, the motor controller receives instructions of gear, brake, throttle, etc., and transmits the signals to the motor into acceleration, deceleration, direction control, etc. The consequences of motor controller failure are disastrous. Breathable products play a very important role in the hardware safety of motor controller. IPRO snap-fit vent and IPRO adhesive pressure vent can help clients improve the safety performance of the controller in the following aspects:

• Excellent air permeability; quickly balance the internal and external pressure difference of the controller, reduce components load and improve the service life.
• High protection level to prevent dust and other external pollutants from entering the controller.
• The high oil proof grade can effectively prevent the oil vapor in the vehicle such as engine oil from infiltrating the breathable film and always maintain excellent air permeability.

The battery pack, motor, gearbox, and braking system of new energy vehicles have their own control units to complete the corresponding functions. In order to better coordinate the work of each subsystem, new energy vehicles need a general controller to do the overall control. The performance of the general controller will affect the stability and safety of the vehicle. For the general controller, daily heating is normal, and the complex oil and steam environment in the vehicle will put the precision components at risk of corrosion. IPRO breathable products can help the vehicle controller improve stability and long-term reliability through the following aspects.

• Breathable; quickly balance the pressure difference inside and outside the controller.
• Moisture permeability to keep the interior of the controller dry and prevent corrosion.
• Chemical corrosion and high temperature resistant ePTFE membrane ensures that the products’ excellent waterproof and breathable performance.

Products: Snap-fit Vent, Screw-in Vent, Anti-explosion valve, Adhesive Pressure Vent

Position sensor, Temperature and humidity sensor, Oxygen sensor 

There are more than 100 kinds of vehicle sensors detecting displacement, force, speed, temperature, flow, and gas composition; and they are generally installed in suspension, interior decoration, exterior decoration, engine compartment, etc. If sensors fail, consequences may be severe, so the stable and reliable operation of sensors is very important for the vehicle.

To ensure the stable operation of sensors, it is necessary to have waterproof, dustproof, high temperature prevention, and rapid pressure equalization under various working conditions, which requires the installation of IPRO waterproof venting products.

Different sensors have different protection requirements. For example, for temperature and humidity sensors, venting products can ensure their sensitivity in high humidity and high temperature environment. For some gas sensors, the materials used in venting products, such as adhesive layer and the selection of composite substrate, also affect the sensitivity of the sensor; For flow sensors, the existence of the membrane itself will affect the flux of the target gas.

IPRO has rich practical experiences to help customers choose suitable breathable products. For example, IPRO high-temperature resistant venting membrane, combined with high-temperature resistant adhesive layer can ensure the long-term stable operation of sensors in the high-temperature environment, and the IPRO adhesive pressure vent can withstand the ambient temperature of 160 ℃ for a long time. The maximum working temperature of IPRO weldable membrane can reach 250 ℃. IPRO has many different types of membrane, which can adapt to a variety of sensor application scenarios.

Products: Adhesive Pressure Vent, Welding vent

Wiper motor, Swing window motor, Cooling motor, Starter motor

Small motors in the automobile are an important part to realize the additional functions of the vehicle, such as wiper motor, swing window motor, starter motor, etc.

These motors are vulnerable to rain or dust. Water inflow may lead to circuit failure, resulting in motor shutdown, and the entry of dust may lead to abnormal noise of the motor.

IPRO has a variety of breathable products, which can effectively prevent water and dust, keep the interior of the motor dry in case of wading, raining or car washing, and continuously provide effective protection. For example, IPRO weldable membrane has excellent consistency and high water-pressure resistance, which can meet the high-performance requirements of automobile motor. IPRO adhesive pressure vent can adapt to various surfaces and is easy to install. TPV vents has good fault tolerance and stable performance. In addition, IPRO also provides a variety of product installation methods to meet different application needs of customers.

Products: Adhesive Pressure Vent, Weldable Membrane, TPV vents