Sensor housing: Function and professional production at Rejlek

Sensors are at the heart of many modern technologies. Whether in industry, the automotive sector or medicine – we encounter sensors everywhere that measure physical parameters and provide important data. However, their functionality would often not be guaranteed without the right housing. Sensor housings protect the sensitive components and ensure that they work reliably in different environments. In this article, we therefore take a closer look at the function of sensor housings and how they are manufactured at Rejlek.

Sensors and their role in everyday life

Sensors have become an integral part of our daily lives. They record physical variables such as temperature, pressure, humidity or movement and translate these into electrical signals that can be processed by other systems. In cars, for example, they measure tyre pressure, exhaust emissions or the distance to other vehicles and objects. In smartphones, they enable functions such as automatic screen rotation or facial recognition.

This technology also plays a crucial role in industry and medical technology. Here, sensors monitor machines and production processes to ensure maximum efficiency and safety or are used in diagnostic devices to measure vital parameters such as the patient’s blood pressure and oxygen levels.

The possible applications of sensors are therefore diverse and of great importance. A decisive factor for their functionality is always the suitable housing, which makes safe and precise operation possible in the first place.

Securely packaged: the function of sensor housings

A sensor housing is not just a simple cover, but a complex component with critical importance for the function of the sensor. Depending on the area of application, it fulfils very different tasks:

1. Protection against external influences: Sensors are very sensitive, which is why they need to be protected against environmental influences such as moisture, dirt, dust and chemical substances. The right housing ensures that the sensor works reliably in different environments.
2. Mechanical stability: Many sensors are constantly exposed to vibrations or mechanical loads that they have to withstand. A protective cover ensures that shocks and impacts do not affect the sensor.
3. Heat dissipation: In some applications, sensors or the systems surrounding them generate heat, which must be dissipated by a good housing to prevent the device from overheating.
4. Electromagnetic shielding: Particularly in industrial or automotive environments, electromagnetic interference can impair the function of the sensor. Enclosures made of certain materials help to shield the sensor from this interference.
5. Simple integration and mounting: Another important feature of sensor housings is that they enable simple integration into the respective application. Ideally, the housing is designed so that it can be easily connected to machines or electronic systems.

Production of sensor housings at Rejlek

The production of sensor housings is a complex technical challenge that requires precision and expertise. At Rejlek, the production of hybrid components and therefore also the production of functionally relevant housing parts for sensors is one of our greatest strengths. Because hybrid components consist of a mix of metal and plastic, they combine the advantages of both materials: high strength, corrosion protection and precise mouldability. They are therefore an excellent choice, especially for sensor housings, to protect sensitive technologies from environmental influences and at the same time make them easy to integrate into technical systems.

Sensor housings have to withstand extreme conditions, especially in the automotive sector. They are exposed to heat, cold, vibrations and aggressive substances such as oil or salt water. A classic example of this is the sensor, which is installed in the centre of the windscreen in many vehicles and controls several functions at once. For example, it activates the windscreen wipers and controls their intensity, switches on the lights as soon as you drive into a tunnel and also controls the air conditioning depending on the position of the sun. For this sensor to work, a complex lens geometry is required, for which we at Rejlek combine three different plastics in one part to enable all the necessary functions.

Rejlek manufactures the sensor housings described for vehicles from several German premium manufacturers. Our advantage here: We can offer our customers all the necessary technologies from a single source. From production equipment and tools to the manufacturing technologies of punching, injection moulding and our press-fit zones (EloPin).

Conclusion: Precise work for perfect functionality

Sensor housings are essential for the functionality of modern sensors. They offer protection, stability and enable reliable operation even under extreme conditions. Innovative manufacturing techniques such as the combination of different materials help to ensure that sensors can be used safely and efficiently in industry, the automotive sector and many other areas.

Would you like to know how our hybrid components can safely package your products or improve their functionality? Let ‘s talk about it – we look forward to hearing from you.