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Dongguan Teao damper: innovative application of car door handles

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In daily car usage, the frequent opening and closing of car doors is an ordinary action. However, despite its simplicity, the car door handle faces numerous challenges stemming from traditional designs during its opening and closing process. The innovative application of Dongguan Teao dampers has injected new vitality into the field of car door handles, bringing an unprecedented transformation experience.

Pain points of traditional car door handles

Traditional car door handles, whether they are the common pull-out type or the recently popular concealed type, face a series of problems during opening and closing. When the driver or passenger opens the door, if they apply too much force, the door handle may quickly pop out, which can not only easily cause accidental bumps to the hands but also damage the internal connection structure of the door handle due to the instantaneous impact force. Over time, this can lead to loose door handles, affecting normal use. When closing the door, the handle often falls back quickly due to gravity and inertia, making a loud impact sound. This noise not only affects the comfort of the occupants inside the car but also disrupts the quiet atmosphere of the car's interior. In cold winters, especially in northern regions, concealed door handles are also prone to being frozen and unable to pop out, causing great inconvenience to car owners. In addition, frequent rapid opening and closing can cause significant wear and tear on the mechanical components of the door handle, shortening its service life and increasing maintenance costs.

The working principle of Dongguan Teao damper

Dongguan Teao Electronic Technology Co., Ltd. has been deeply involved in the field of dampers for many years. Its developed and produced damper products have been widely applied in numerous industries due to their excellent performance, and car door handles are one of them. The core working mechanism of a damper is to provide resistance in the opposite direction of an object's motion, thereby dissipating the energy of the motion and achieving smooth and gradual motion control. Taking the rotary damper applied to car door handles as an example, when a user pulls the door handle to open the car door, the structure made of special materials and the filled medium such as silicone oil inside the damper begin to function. As the door handle rotates, the friction generated by the internal structure and the viscous resistance of the silicone oil jointly form a force opposite to the direction of rotation, gradually slowing down the opening speed of the door handle and avoiding the impact caused by rapid ejection. During the process of closing the car door and the door handle falling back, the damper can also absorb the kinetic energy of the handle's descent, allowing the handle to return slowly, thus eliminating noise and component wear issues caused by rapid descent.

Innovative application forms

Optimized structure of external linear damper

A common innovative application method is to optimize the structure by setting up an external linear damper at a specific position on the car door. Taking a vehicle model with improved dampers as an example, its door structure includes the door body and the door handle assembly mounted on the door body. On the inner edge of the door near the door handle shaft, a damping structure consisting of a cuboid-shaped damper housing and a cylindrical linear damper is installed. The damper housing is equipped with a vertically arranged and top-through cylindrical damper mounting hole, and the linear damper is installed inside the hole with one end of its piston rod facing up. When the user pulls the door handle to open the door, during the rotation process, a specific part of the door handle will gradually come into contact with and press down on the top of the piston rod of the linear damper. As the door handle continues to rotate, the piston rod slowly moves downwards under the action of the medium inside the damper, and the linear damper exerts an upward reaction force on the door handle, effectively reducing the rotation speed of the door handle and achieving smooth opening. By reasonably adjusting parameters such as the number and specifications of the linear dampers, as well as the installation position of the damper housing, it can adapt to the dimensions, weight, and personalized needs of users regarding the opening force and speed of the door handle for different vehicle models. For some large SUV models, due to the heavier doors, the number of linear dampers can be appropriately increased or a model with greater resistance can be selected to ensure that the door handle can be easily and smoothly opened.

Built-in damping gear linkage system

Dongguan Teao Damper has also been applied to car door handles in the form of an internal damping gear linkage system. This application is typically seen in some high-end models or door handle systems with special designs. In such designs, the damping gear serves as a key component of the entire door handle transmission system, undertaking the important responsibilities of buffering and regulating power transmission. For example, in the motor drive system of some electric concealed door handles, the damping gear is interconnected with the motor output shaft and the door handle's rotating shaft. When the motor receives a signal to open or close the door handle and starts to operate, the power output by the motor is first transmitted to the damping gear. The damping gear, through its unique tooth design and internally filled damping medium with high viscosity, buffers and regulates the power transmitted from the motor. This makes the power transmitted to the door handle smooth and gentle, thus achieving a slow and uniform speed in the pop-up or retracting of the door handle. The advantage of this internal damping gear linkage system lies in its ability to integrate closely with the overall structure of the car door, without occupying additional external space, ensuring the simplicity and integrity of the door's appearance. At the same time, by precisely designing various parameters of the damping gear, such as tooth count, modulus, tooth shape, etc., accurate control over the opening and closing speed of the door handle can be achieved. In some luxury models that have extremely high requirements for interior quietness, by carefully tuning the damping coefficient of the damping gear, the door handle can achieve almost silent effects during the opening and closing process, greatly enhancing the comfort experience of the occupants inside the car.

Bringing significant advantages

Enhance usage security

The application of Dongguan Teao dampers has made the opening and closing of car door handles more stable and controllable, effectively avoiding accidental injuries to users' hands caused by the rapid ejection or retraction of door handles. Whether it is during daily hurried travel or when operating the car door in a dimly lit environment, drivers and passengers no longer need to worry about their hands being pinched or hit by the rapidly ejected door handles. This innovative application adds a reliable safeguard to the safety of car use, especially for children, the elderly, and other groups with relatively limited mobility, making it more friendly and safe.

Reduce noise interference

Inside the car, noise is one of the important factors affecting the driving experience. The loud noise generated when opening and closing the door handle of traditional cars stands out in a quiet car environment. The Teao damper makes the door handle opening and closing process gentle and quiet, effectively reducing noise interference. Whether it is frequent stopping and starting on city roads or occasionally opening and closing the door while driving at high speed, the damper ensures that the noise generated during door handle operation is controlled to a very low level, creating a more tranquil and comfortable space atmosphere inside the car, enhancing the pleasure of driving.

Extend the service life of the door handle

Frequent rapid opening and closing poses a severe test for the mechanical components of car door handles, easily leading to wear, loosening, and even damage. Dongguan Teao dampers can absorb and buffer the impact force during the opening and closing of door handles, significantly reducing friction and wear between internal mechanical components. Taking concealed door handles as an example, the application of dampers makes the door handles more stable when popping up and retracting, avoiding mechanical structure deformation or damage caused by excessive instantaneous impact force. This not only extends the service life of the door handles, reduces maintenance costs for car owners, but also reduces the inconvenience caused by door handle malfunctions and improves the overall reliability of the car.

Enhance user experience

For car users, the optimization of every detail can enhance the overall user experience. The Teao damper gives the car door handle a smoother and more comfortable operating feel, allowing users to experience a smooth and stable motion process when opening or closing the door. This delicate operating experience is particularly important in high-end models, further enhancing the quality and luxury feel of the car and satisfying users' pursuit of high-quality travel. In some car brands that focus on user experience, the application of dampers on door handles has become one of the important selling points to enhance product competitiveness, attracting more consumers' attention and favor.

The innovative application of Dongguan Teao dampers in car door handles has brought numerous tangible benefits to users through the detailed optimization of this key component of automobiles. As the automotive industry's demands for quality and user experience continue to rise, it is believed that more and more automakers will adopt similar innovative technologies to create a safer, more comfortable, and more convenient travel experience for the vast number of car owners


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