What is the difference between a car's active headrest and a normal headrest? What is the use of a car's active headrest?

Car headrests can protect the back of our heads and cervical spine, and can relieve neck fatigue and discomfort caused by driving. Some good cars come with active headrests, which are different from ordinary headrests. So what are the specific differences? What are the benefits of active headrests?

What is the difference between a car active headrest and a normal headrest?

Whether it is an ordinary headrest or an active headrest, both play the role of supporting the head and protecting the neck, and are positioned at the back to leave room for the head to move.

An ordinary headrest is a common foam and support structure, which is then connected to the seat separately or integrally.

The integrated headrest is that the headrest and the backrest are integrated. The split headrest is connected by the headrest rod and the backrest frame.

The active headrest is a purely mechanical system that controls the operation of the headrest by a linkage connected to the pressure plate inside the seat back.

When a car is hit by a vehicle from behind, the passenger's body will hit the backrest due to the impact force, pushing the pressure plate backwards, causing the headrest to move upward and forward, so as to support the passenger's head and neck before the head and neck shake violently, providing sufficient head and cervical spine protection to prevent or reduce the possibility of injury. After the rear-end collision, the active headrest will automatically return to its original position for next use without maintenance. Ordinary headrests do not have this function.

What is the use of active headrest in cars

Active headrests can provide better protection for the cervical spine in the event of a rear-end collision. The principle is to effectively maintain the angle between the cervical spine and the seat in the event of a collision, so that the head and cervical spine have proper support and protection. Different manufacturers use different structural solutions, but generally speaking, they change with the human body to provide the best protection for the human body.

There are two ways to trigger the headrest. One is mechanical, which uses the principle of lever. When a rear-end collision occurs, the body will move backward, squeezing the seat, and the force of the back will push the pressure plate, which is connected to the headrest, to move it forward. The other is sensor-based, which is the same as the airbag triggering method. There is a sensor at the back of the car, which triggers the headrest to move when it senses an impact.

The correct way to use the car headrest

If it is the headrest that comes with the original car, this type generally has front headrests and rear headrests, which can usually be adjusted by yourself.

Directions:

1. Adjust your sitting posture and make the angle of the seat back fit your back curve well.

2. Adjust the headrest, usually up and down, and some can also be adjusted forward and backward. Usually, the highest height of the headrest should not exceed the top of the head, and the lowest height of the headrest should not be lower than the eyes.

The most suitable position for adjusting the headrest is that the soft part in the middle of the headrest is parallel to the upper edge of the ear. In this way, if a rear-end collision occurs, it can also effectively protect the back of the head and cervical spine.

If we buy the headrest by ourselves, we usually place it in the center of our neck to ensure comfort.