The front of the technology is pneumatically lifted, and Wen Li Dehai uses the high-frequency welding method to seal the diaphragm and the pipe joint.

The method of tuning the plenum in the seat can be achieved by changing the different inflatable shapes. The working pressure of the lordotic region and the neck region of the spine is 5, 20, 1 å‘·, and the pressure in the support areas on both sides is 250,300. The mechanically operated pneumatic switch pneumatic switch uses a manual pneumatic reversing valve sealing diaphragm and a tappet with a preloaded spring operated by a tumbler. 2 If the flipping is open, people's living standards are constantly improving. People are increasingly demanding the comfort of a car. To this end, Alfmeer Precision offers a five-motion seat adjustment mechanism that adds layered air bubbles between the seat support structure and the foam pad in the comfort zone, and these bubbles can be used by the occupants. Adjusted separately.

System configuration To achieve these functions, what special components are needed, and the pressure supply must ensure that the system works properly. First you need a source of stress. The pressure sources for such systems are mostly diaphragm pumps or vane pumps. And to be dragged by the motor. This inflatable capacity is up to the pump, so the diameter can be directly installed in the seat. If the driver's seat front seat and rear seat are equipped with a pneumatically controlled comfort adjustment mechanism.

You can use the security to flip in one direction. The tappet lifts the diaphragm from the seal seat. The plenum that is switched on begins to inflate.

When the tumble switch is changed to the opposite direction. The plenum begins to deflate accordingly.

In order to adjust the seat cushion to the desired pressure. The switch will be used before driving. Due to the high overall sealing. The neck cushion must be inflated until the next day. This type of switch is used as a basic configuration of a car seat, which is an inexpensive and practical valve. Can be combined into the seat finish ±. It can also be combined with a separate operating element. The mechanically operated pneumatic regulator is also composed of a housing with a number of seat cushion joints. When adjusting the pressure of the seat cushion, the sealing diaphragm is driven by an eccentric that changes the spring force. Suffered by the intake air. then. The connected seat cushion is adjusted to a preselected pressure by means of different pressure acting surfaces on the regulator. The system will automatically adjust the differential pressure due to temperature fluctuations or due to air leaks. The regulator is also a combination of modules, a few years ago. The simple two-way lordosis support is considered to be specially equipped to fit in the car seat. However, with the continuous development of automotive technology, such components have now become standard configurations and are commonly used in seats.

Nowadays. Specially configured, the electropneumatic adjustment system can be individually adjusted in either the lordotic and cervical regions of the spine or the support regions on both sides. The optimal comfort adjustment can be stored via the memory function. And you can re-adjust at any time. For this purpose, a dynamic function can be selected via a single key. The central air pump with an inflation capacity of 151 is placed in the luggage compartment by continuously inflating and deflation of the various plenums in the seat to eliminate the fatigue of the occupants of the vehicle and to achieve a decisive improvement in ride comfort.

In addition to ride comfort, other gas facilities. For example, the regeneration of activated carbon filters, brake boosting and engine-specific regulating devices are also subject to pneumatic pressure supply. In order to be able to work together. The required overpressure and underpressure can be supplied with a central dual pressure pump.

The inflatable cushion ester in the seat can be used as an inflation system material, which can meet all the requirements of the car within 40 +85. The air cushion is made of a punched polyurethane diaphragm. At last. There is also a need to drive the solenoid valve drive system. This magnetic valve drive, which is functionally comparable to a pneumatic switch, is controlled by an electrical switch. When the switch is pulled in one of the directions. Will be free to connect. Feed the wind into the seat cushion. Switch to another direction. It can also be an electro-pneumatic controller. The adjustment distance of the seat longitudinal attitude adjuster is changed according to the adjustment pre-pressure. It uses the prestressing force applied to the bundle spring to bring the carriage to the zero position. If you increase the air pressure in the actuator. The adjusted depth of sliding distance is proportional to the spring's prestress.

The get-off assistance system tends to create a higher seat sidewall for the seat and armrest area, which is much more inconvenient. In order to solve the problem of getting off the vehicle and properly manipulating the solenoid valve to inflate the seat side seat cushion. This will make getting on and off a breeze.

The backrest spine bulge support with 6 bubbles in the back and the corresponding bubble system weight on both sides of the fixed support are also about 5009. If the additional pressure supply unit with a weight of about 4,9 is added, the total weight of the comfort system is still Less than 15009. In contrast. Adjust the movement in the comfort zone driven by gears or by a flexible shaft. Each seat weighs more than 50,000 g.

The noise is small even in terms of noise. Pneumatic comfort systems also have advantages. Since the air pump is only dragged by the motor. Therefore, there are fewer sources of interference. At the same time, it is also used to reduce the sound generation such as thick on the elastic member.

At the same time, the switching noise of the solenoid valve can be effectively attenuated, which is mainly controlled by a pulse width modulator. When this control method is avoided, the exhaust process will be performed. Since the electric solenoid valve must be equipped with an electrical switch, the system is much more expensive than a pneumatic switch in terms of cost.

The electric pneumatic system with memory capability is a highly integrated automatic air conditioning system. The microcontroller detects the real-time actual pressure in the plenum through a pressure sensor mounted on the seat cushion interface and compares it to the theoretical pressure. If there is a deviation from the theoretical pressure, the electric magnetic force will be turned on, so that the capacity and the reason are assembled in the local area network bus. Therefore, when the driver's door is opened, the key code will automatically open the memory position of the driver seat recently stored. The occupants of the vehicle are expected to receive other comfort assistance, and the occupant can always select the advantage of the 1 system through the electrical switch due to the composition of the pneumatic seat comfort adjustment system. This system has the advantages of low cost, light weight and low noise, and is also the advantage of the system.

low cost. Light weight and light weight are the main advantages of pneumatic switches and regulators, and because the system uses a multi-seat central high pressure pump or a vehicle centralized pressure supply mechanism. Therefore, the advantages of both cost and weight are particularly obvious, and each pneumatic switch is bidirectionally controlled. In addition, the motor is also bidirectionally controlled in the motor drive system.

In the case of a pneumatic controller, the extension function can be expanded by expanding the electromagnetic search and the corresponding pressure sensor without causing cost and weight increase.

for example. The six rotors that control the separation of the bubble motor and the support on the core are accelerated too much. Also. A dedicated muffling element is used to reduce the inflation noise.

Due to the high sealing requirements of the system, very high quality requirements are imposed on the valve technology used. In order to maintain the adjusted air cushion pressure in a system that is no longer adjusted, it can remain close to about 12 hours in a long period of time. Change the pressure. This quality requirement is what it should be. The tightness of the pneumatic seat cushion in the adjustment system will be decisive for the life of the air pump used as the driving time continues to increase. The occupants in the car increase the comfort requirements. The most obvious trend seen at the moment is the use of airbags in the security field. In the future, a high-quality seat comfort adjustment system will become the basic configuration of each car. The controller must be selected to achieve the desired air pressure. The dynamic function can be activated by the button pressure on the electrical control switch, at which point the seat cushion will be inflated and vented over time. To reduce the fatigue and tension of the actual occupants.

Another option for this system is to enable signal input via the LAN bus. Allows the armrest and the support area on both sides of the seat to have an active turning support.

According to the steering angle turning wheel speed and the car position, the support cushions on both sides can pump the extremely different air pressure, which greatly improves the occupant side fixed support.

The seat longitudinal position adjustment is based on the design of the seat adjuster. The steering mechanism performs the seat adjustment task through the pneumatic actuator. The operating mechanism can be either a switch or an adjustment, and the inquiry number 217 20006 is completed and repaired.

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