With the development of science and technology and the improvement of people's living standards, cars have entered thousands of households and become the most important means of transportation for people to travel daily. The car rearview mirror is an essential part of the car. It plays an important role in the driving process. It allows the driver to indirectly see the situation in the rear and play the role of “second eye”, which expands the driver. The range of vision, thus effectively improving driving safety.
The car's rearview mirrors are located on the left and right sides of the car's head and in front of the car's interior. The rear view mirror reflects the rear, side and underside of the car, allowing the driver to see the position indirectly. It acts as a “second eye” and expands the driver's field of view. The car rearview mirror is an important safety piece, and its mirror, shape and manipulation are quite elaborate. The quality and installation of the rearview mirrors have corresponding industry standards and cannot be arbitrarily. Therefore, the use of the board-to-board connector in the rear view mirror is particularly important.
Classification of car rearview mirrors
The rearview mirror is divided by the mounting position and is divided into an exterior rear view mirror, a lower rear view mirror and an inner rear view mirror. Divided by purpose, the exterior rearview mirror reflects the rear side of the car, the lower rearview mirror reflects the front and rear of the car, and the inner rearview mirror reflects the rear of the car and the inside of the car. The use is different and the mirror structure will be different. Generally, there are two types of mirrors in the rear view. One is a flat mirror. As the name suggests, the mirror surface is flat. The terminology is “the radius of curvature of the surface is infinite”, which is the same as the general household mirror. This type of mirror is often used as an interior rearview mirror. The other is a convex mirror with a spherical surface and a radius of curvature of different sizes. Its image is smaller than the visual field, but the field of view is large, like the role of a camera "wide-angle lens". This convex mirror is often used as an exterior mirror. And the rear view mirror. Cars and other light passenger cars are typically equipped with exterior and rear view mirrors, while large commercial vehicles (buses and large trucks) are typically equipped with exterior rearview mirrors, lower rearview mirrors and interior rearview mirrors.
Important board-to-board connectors in automotive rearview mirrors
The rear view mirror assembly is composed of two reversible motors, a reduction gear, a worm wheel, a spiral pivot, a folding mechanism and the like. The rearview mirror electronic control system circuit is mainly composed of left and right rearview mirror motors, position sensors, rearview mirror ECUs, and remote control switches. Each position mirror has two position sensors (horizontal and vertical), the main function of which is to detect the position of the mirror. Including Hall IC and permanent magnets. During operation, the rear view mirror ECU supplies the Hall IC with a 5 V supply voltage. When the rotation of the mirror causes the spiral pivot to move forward and backward, the relative position of the pivot helix changes.
The board-to-board connectors used in the rearview mirrors are available in two models: 3.96 or 2.54.
lCurrent rating: 2.5A AC, DC
lVoltage rating: 250v ac, dc
lOperating temperature: -0C-+75C
lContact resistance: 20mΩmax
lInsulation resistance: 5000mΩmin
lWithstanding Voltage: 1500V AC/minute
lHousing material: Nylon66, ul94V-2/94V-0
lTerminal: Brass
lCircuits: 2-25P
More information can be found on the product page.
In the series of automotive side mirrors, as well as in data center storage and switching systems, board-to-board connectors provide reliable high-speed data transmission, clearer, flame-retardant, polarized housing for protection in harsh environments connection. In high-speed computing, the board-to-board connector helps support the backbone of the data center architecture and the rugged embedded computing system.
Board-to-board connectors are not just for use in rearview mirrors. In fact, board-to-board connectors are still present in other components. You can follow our dynamics and I will tell you more.
English
