TWM626541U - Soft and hard adjustment unit, seat, seat adjustment system and transport - Google Patents

Abstract

The soft and hard adjusting unit includes an elastic frame, a partition, a fluid filling material and a field generator. A closed covering space is arranged in the elastic frame. The partition is arranged in the covering space, and divides the covering space into a upper space and a lower space. The upper space and the lower space are connected. The fluid filler is filled in the covering space. A field generator is arranged outside the elastic frame, and is used to apply a field to the fluid filling to change the viscosity of the fluid filling, so that the flow of the fluid filling in the upper space and the lower space is changed to control the deformation of the elastic frame. The application also provides seats, seat adjustment systems and transport.

Description

Soft and hard adjustment unit, seat, seat adjustment system and vehicle

The present application relates to the field of seat structures, in particular to a soft and hard adjustment unit, a seat, a seat adjustment system and a vehicle.

The hardness of the seat on the car is generally fixed. When the car encounters various driving conditions, the passengers cannot adapt to the driving state by changing the hardness of the seat, and the passengers must adjust the center of gravity by correcting their sitting posture, which reduces the comfort of the passengers.

For some special passengers, they also have special requirements for the distribution of soft and hard, and the conventional seats cannot meet these requirements.

In view of the above situation, it is necessary to provide a soft and hard adjustment unit, a seat, a seat adjustment system and a vehicle, so as to solve the problem that the soft and hard seats cannot be adjusted.

An embodiment of the present application provides a soft and hard adjusting unit, including an elastic frame, a spacer, a fluid filler, and a field generator; the elastic frame is provided with a closed encapsulating space; the spacer is disposed in the enclosing space Inside, the cladding space is divided into a communication upper space and a lower space; the fluid filler is filled in the cladding space; the field generator is arranged outside the elastic frame, and is used for the The fluid filling applies a field to change the viscosity of the fluid filling, thereby changing the damping of the fluid filling in the upper space and the lower space to control the deformation of the elastic frame.

The viscosity of the fluid filler can be changed by the field distribution and field size generated by the field generator, and the flow damping of the fluid filler between the upper space and the lower space can be changed to realize the soft-hard adjustment unit. The adjustment of the buffer capacity intuitively changes the degree of softness and hardness of the soft and hard adjustment unit. The partition can also support the overall structure of the soft and hard adjusting unit, so that the soft and hard adjusting unit will not collapse when it bears the weight, so as to provide a good soft and hard adjusting effect.

Further, in some embodiments of the present application, the interlayer is provided with a plurality of flow holes connecting the upper space and the lower space.

The upper space and the lower space are communicated through the arrangement of the flow holes, so that the fluid filling can flow between the upper space and the lower space. And by changing the size and number of the flow holes, the flow control of the fluid filler between the upper space and the lower space can be realized.

Further, in some embodiments of the present application, a traction member is provided in the covering space, one end of the traction member is connected to the elastic frame, and the other end is connected to the spacer to maintain the space between the spacer and the spacer. The relative position of the elastic frame.

The traction member creates tension or pressure so that the spacer can be maintained in the elastic frame and keeps the spacer in the middle position of the elastic frame all the time.

Further, in some embodiments of the present application, the traction member is a plurality of rubber connecting members.

On the one hand, the traction member cannot react with the fluid filler, and on the other hand, the traction member needs to have sufficient strength to withstand a large tensile force or pressure. In general, the rubber connector has stable physical and chemical properties, which can realize the long-term performance. Continuously provide a reliable pulling force during the cycle to keep the separator in the middle position of the elastic frame.

Further, in some embodiments of the present application, the fluid filling is a magnetorheological fluid, and the field generator is an annular magnetic field line, and the annular magnetic field line surrounds the elastic frame.

The magnetorheological fluid controlled by the magnetic field has safer characteristics, and is more suitable for soft and hard adjustment units that need to be in close contact with passengers.

An embodiment of the present application further provides a seat, comprising a base plate and a plurality of the above-mentioned soft and hard adjustment units; the base plate has an installation surface; the soft and hard adjustment units are arranged in parallel on the installation surface of the base plate.

The soft and hard adjustment units on the seat are arranged according to ergonomics, so that the cooperation of multiple soft and hard adjustment units can achieve better comfort for passengers under various driving conditions during the current vehicle driving process.

Further, in some embodiments of the present application, the mounting surface is provided with a fixing frame, and the fixing frame is provided with a positioning hole corresponding to the elastic frame.

The fixing frame can limit the soft and hard adjusting units to corresponding areas, so that the soft and hard adjusting units on the bottom plate always keep a preset arrangement rule.

An embodiment of the present application further provides a seat adjustment system, including an electronic control unit and the above-mentioned seat; the soft and hard adjustment unit is electrically connected to the electronic control unit.

The soft and hard adjustment unit of the seat can be controlled by the electronic control unit, so that the soft and hard adjustment unit can adjust the soft and hard in an orderly manner, so as to achieve better comfort for passengers under various driving conditions in the current vehicle driving process.

Further, in some embodiments of the present application, a sensor device is further included; the sensor device is electrically connected to the electronic control unit, the sensor device receives environmental information and transmits it to the electronic control unit an ambient signal; the electronic control unit controls the field generator according to the ambient signal.

After the electronic control unit receives the environmental information, it controls the field generators in the soft and hard adjustment units in each area according to the environmental information, so that a reasonable soft and hard distribution appears on the seat, so that passengers can obtain the information in the corresponding environment. Better comfort.

Further, in some embodiments of the present application, the sensing device includes one or more of a road condition radar, a temperature sensor, a pressure sensor and an acceleration sensor; the road condition radar is used for receiving road condition information , and transmit the road condition information to the electronic control unit; the temperature sensor is used to receive the temperature information of the environment, and transmit the temperature information to the electronic control unit; the pressure sensor is used to receive the pressure information outside the elastic frame, and transmit the pressure information to the electronic control unit; the acceleration sensor is used for receiving the acceleration information and transmits the acceleration information to the electronic control unit.

By acquiring enough environmental information through various sensing devices, the electronic control unit can make a better and reasonable judgment, so that all the soft and hard adjustment units cooperate to produce the soft and hard distribution in accordance with the complex environmental state.

Further, in some embodiments of the present application, a console is further included; the console is electrically connected to the electronic control unit, and the console is used for inputting control instructions.

By setting the console, passengers can independently adjust the soft and hard distribution on the seat to meet the different needs of each passenger for soft and hard.

The present application also provides a vehicle, comprising a vehicle body and the above-mentioned seat adjustment system; the seat adjustment system is installed in the vehicle body.

The vehicle body can be a car, a train, a ship, an airplane, etc. When the vehicle body is traveling on a route, the seat adjustment system can adjust the softness and hardness according to the driving state. At the same time, the seat adjustment system can also provide soft and hard distribution for passengers who take the vehicle to meet their own needs.

010: Soft and hard adjustment unit

100: Elastic Frame

200: compartment

400: Field Generator

210: Flow hole

110: wrapping space

111: Upper Space

113: Lower space

130: Traction

410: The first magnetic field line

430: The second magnetic field line

030: Bottom Plate

050:Fixed frame

FIG. 1 is a cross-sectional view of a soft-hardness adjusting unit according to an embodiment of the present application from a first perspective.

FIG. 2 is a cross-sectional view of the soft-hardness adjusting unit according to an embodiment of the present application from a second angle of view.

FIG. 3 is a cross-sectional view of the soft and hard adjusting unit according to an embodiment of the present application from a second angle of view.

FIG. 4 is a schematic structural diagram of a seat in an embodiment of the present application.

FIG. 5 is a diagram of an adjustment process of the seat in an embodiment of the present application when the vehicle is turning right.

FIG. 6 is an adjustment process diagram of the seat in an embodiment of the present application when a scoliosis passenger is seated.

FIG. 7 is a system schematic diagram of a seat adjustment system in an embodiment of the present application.

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments.

It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or it may be co-existing with intervening elements. When an element is referred to as being "disposed on" another element, it can be disposed directly on the other element or it may be co-existing with an intervening element.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used herein in the specification of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. Book As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

An embodiment of the present application provides a soft and hard adjusting unit, including an elastic frame, a spacer, a fluid filler, and a field generator; the elastic frame is provided with a closed encapsulating space; the spacer is disposed in the enclosing space Inside, the cladding space is divided into a communication upper space and a lower space; the fluid filler is filled in the cladding space; the field generator is arranged outside the elastic frame, and is used for the The fluid filling applies a field to change the viscosity of the fluid filling, thereby changing the damping of the fluid filling in the upper space and the lower space to control the deformation of the elastic frame.

The viscosity of the fluid filler can be changed by the field distribution and field size generated by the field generator, and the flow damping of the fluid filler between the upper space and the lower space can be changed to realize the soft-hard adjustment unit. Cushioning capacity, intuitively changes the degree of softness and hardness of the soft and hard adjustment unit.

An embodiment of the present application further provides a seat, comprising a base plate and a plurality of the above-mentioned soft and hard adjustment units; the base plate has an installation surface; the soft and hard adjustment units are arranged in parallel on the installation surface of the base plate.

The soft and hard adjustment units on the seat are arranged according to ergonomics, so that the cooperation of multiple soft and hard adjustment units can achieve better comfort for passengers under various driving conditions during the current vehicle driving process.

An embodiment of the present application further provides a seat adjustment system, including an electronic control unit and the above-mentioned seat; the soft and hard adjustment unit is electrically connected to the electronic control unit.

The soft and hard adjustment unit of the seat can be controlled by the electronic control unit, so that the soft and hard adjustment unit can adjust the soft and hard in an orderly manner, so as to achieve better comfort for passengers under various driving conditions in the current vehicle driving process.

The present application also provides a vehicle, including a vehicle body and the above seat adjustment system. The seat adjustment system is installed in the vehicle body.

The vehicle body can be a car, a train, a ship, an airplane, etc. When the vehicle body is traveling on a route, the seat adjustment system can adjust the softness and hardness according to the driving state. At the same time, the seat adjustment system can also provide soft and hard distribution for passengers who take the vehicle to meet their own needs.

The embodiments of the present application will be further described below with reference to the accompanying drawings.

first embodiment

Please refer to FIG. 1 and FIG. 2 , the first embodiment of the present application provides a soft-hardness adjusting unit 010 for soft-hardness adjustment of a seat. The soft and hard adjusting unit 010 includes an elastic frame 100 , a spacer 200 , a fluid filler and a field generator 400 . The elastic frame 100 is provided with a closed envelope space 110 therein. The interlayer 200 is arranged in the cladding space 110, and divides the cladding space 110 into a connection with the upper space 111 and the lower space 113; the fluid filler is filled in the cladding space 110; the field generator 400 is arranged outside the elastic frame 100, It is used to apply a field to the fluid filling to change the viscosity of the fluid filling, thereby changing the flow damping of the fluid filling in the upper space 111 and the lower space 113 to control the deformation of the elastic frame 100 .

The buffering capacity of the elastic frame 100 can be changed by the flow damping of the fluid filler, that is, the degree of softness and hardness of the elastic frame 100 can be controlled. The interaction between the spacer 200 and the elastic frame 100 can support and maintain the overall structure of the soft-hard adjusting unit 010 , so that the soft-hard adjusting unit 010 will not collapse instantaneously when bearing weight, so as to provide a good soft-hard adjusting effect.

The communication between the upper space 111 and the lower space 113 can be achieved by disposing the flow holes 210 on the partition layer 200, and by changing the size and number of the flow holes 210, the fluid filling can be controlled between the upper space 111 and the lower space when the viscosity of the fluid filling is constant. Circulation between spaces 113. In order to make the flow rate of each area of the partition layer 200 in the soft and hard adjusting unit 010 as uniform as possible, the flow holes 210 are evenly distributed on the partition layer 200 .

In one embodiment, the number of the circulation holes 210 is four circular circulation holes, which are distributed in four places near the edge of the partition layer 200, and the connecting line of the center of the circle forms a diamond shape. However, the circulation holes 210, the number, shape and Distributions can also take other forms. In addition, in other embodiments, the circulation hole 210 may not be provided, but a circulation pipe may be specially provided to realize the communication between the upper space 111 and the lower space 113 . Regardless of whether the circulation holes 210 or the circulation pipes are provided, the purpose is to make the upper space 111 and the lower space 113 communicate with each other.

The fluid filling is a magnetorheological fluid, and the field generated by the corresponding field generator 400 is a magnetic field. In order to uniformly adjust the viscosity of the magnetorheological fluid, the field generator 400 is provided with a first magnetic force line 410 and a second magnetic force line 430 , which are symmetrically arranged on two sides outside the elastic frame 100 . The first magnetic field lines 410 and the second magnetic field lines 430 generate symmetrical magnetic fields to act on the magnetorheological fluid.

It should be noted that, in other embodiments, the fluid filling can also be an electro-rheological fluid, and the field generator 400 generates an electric field corresponding to the electro-rheological fluid.

In order to prevent the interlayer 200 from being detached from the middle position in the elastic frame 100 due to impact, a traction member 130 is also provided in the clad space 110. One end of the traction member 130 is connected to the elastic frame 100, and the other end is connected to the interlayer 200. The position of the spacer 200 in the elastic frame 100 is maintained by the pulling member 130 . When the pulling member 130 is disposed in the upper space 111 or in the upper space 111 and the lower space 113 at the same time, the pulling member 130 provides a pulling force to maintain the relative position of the partition 200 . The pulling member 130 is a plurality of rubber connecting members. The rubber connecting members have stable physical and chemical properties and will not react with the fluid filling. In addition, the rubber connecting members can maintain their physical properties for a long period of time to provide the spacer 200. The continuous and reliable pulling force keeps the spacer 200 in the middle position of the elastic frame 100 . The specific rubber connector can be a connector formed of materials such as polyurethane (PU), polyurethane (PVC) or thermoplastic polyurethane (TPU), as long as it does not react with the fluid filler and provides a continuous force to maintain the interlayer 200 location.

The specific rubber connectors can be arranged side by side or radially in the upper space 111 and the lower space 113 , and the specific arrangement form is selected according to the arrangement of the upper flow holes 210 of the spacer 200 and the thickness of the spacer 200 itself. The arrangement of the rubber connectors can effectively improve the uniformity of the force applied by the rubber connectors in the covering space 110 , thereby increasing the service life of the partition 200 .

In other embodiments, only when the traction member 130 is arranged in the lower space 113, the traction member 130 in the lower space 113 needs to provide pressure to the interlayer 200, so that when the elastic frame 100 is suddenly stressed, the interlayer 200 can be removed. It is held at a fixed position in the cladding space 110 .

In actual use, the elastic frame 100 will be subjected to a pressure outside, so that the elastic frame 100 has a tendency to deform when it is pressed down, and thus has a tendency to squeeze the fluid filling in the upper space 111 into the lower space 113 . At this time, the greater the damping of the circulation between the upper space 111 and the lower space 113, the more difficult it is for the fluid filling of the upper space 111 to circulate and exchange with the lower space 113, and it is difficult for the upper space 111 and the lower space 113 to deform. The greater the hardness; on the contrary, the smaller the circulation damping between the upper space 111 and the lower space 113, the easier the fluid filling of the upper space 111 and the lower space 113 to circulate and exchange, and the upper space 111 and the lower space 113 can follow the elastic frame 100. The pressure is rapidly deformed, so that the hardness adjustment unit 010 exhibits less hardness. The change of the flow damping between the upper space 111 and the lower space 113 is realized by adjusting the viscosity of the fluid filler, and the viscosity of the fluid filler is adjusted by the field generator 400 . Therefore, by generating fields with different intensities and layouts by the field generator 400 , the hardness of the soft-hard adjusting unit 010 under pressure can be changed.

The soft-hardness adjusting unit 010 provided in the present application can control the deformation speed of the elastic frame 100 under the same pressure by the field generator 400 , that is, control the hardness of the soft-hardness adjusting unit 010 . The hardness adjustment of the soft-hardness adjusting unit 010 is soft, safe and fast, and will not cause damage to the force-applying object on the elastic frame 100 .

Second Embodiment

Referring to FIG. 3 , a second embodiment of the present application provides a soft-hardness adjustment unit 010 for soft-hardness adjustment of a seat. The difference between the soft-hard adjusting unit 010 and the soft-hard adjusting unit 010 provided in the first embodiment is that the field generator 400 is arranged as a ring-shaped magnetic field line surrounding the elastic frame 100, and a more uniform magnetic field can be provided by the ring-shaped magnetic field line To control the viscosity of the fluid filling. It can be matched with the situation where there are many circulation holes 210 on the partition 200, so that the fluid filling in the entire cladding space 110 has a more uniform viscosity, thereby making the circulation damping of each circulation hole 210 uniform, and providing a better damping effect. .

The soft-hard adjusting unit 010 provided by the present application can control the deformation difficulty of the elastic frame 100 through the field generator 400 , that is, control the hardness of the soft-hard adjusting unit 010 under pressure. The hardness adjustment of the soft-hardness adjusting unit 010 is soft, safe and fast, and will not cause damage to the force-applying object on the elastic frame 100 .

Third Embodiment

Please refer to FIG. 4 , a third embodiment of the present application provides a seat for carrying passengers in an automobile. This kind of seat includes a bottom plate 030 and a plurality of soft and hard adjustment units 010 provided in the first embodiment.

The base plate 030 has a mounting surface, and the soft and hard adjusting units 010 are arranged on the mounting surface of the base plate 030 in parallel.

The soft and hard adjusting unit 010 carries passengers, and the soft and hard adjusting unit 010 adjusts the degree of its own softness and hardness so as to form different softness and hardness distributions on the installation surface. Different soft and hard distributions can cope with different driving conditions and adapt to different passenger needs.

For example, please refer to Fig. 5. When the vehicle turns right, the center of gravity of the human body will fall to the left of the seat due to inertia. At this time, the soft and hard adjustment unit 010 on the left side of the driving installation surface has a greater hardness to provide a stronger Support to prevent passengers from leaning further to the left, and the installation surface is located on the right side of the soft and hard adjustment The node unit 010 can maintain the original degree of softness and hardness. When the right turn is completed, the center of gravity of the human body is corrected, and at this time, the soft and hard adjusting unit 010 on the left side of the drive installation surface restores the original hardness.

For another example, please refer to FIG. 6 , the passenger suffers from scoliosis, and the corresponding soft and hard area of the seat is different from that of the non-patient. If the spine is curved to the left, when all the soft and hard adjusting units 010 on the installation surface have the same hardness, the soft and hard adjusting unit 010 on the left side of the installation surface will collapse excessively due to the passenger's center of gravity, making the passenger tend to lean to the left. Therefore, it is necessary to adjust the soft and hard adjusting units 010 on the left side and the middle part of the installation surface, so that the installation surface has a soft and hard distribution which becomes softer from left to right in turn. A good sitting posture reduces the soreness of passengers with left-side curvature of the spine during the ride.

The position of the soft and hard adjusting unit 010 needs to be relatively fixed on the installation surface to prevent the soft and hard adjusting unit 010 from slipping on the installation surface. Therefore, the fixing frame 050 is fixed on the installation surface, and the fixing frame 050 is provided with a positioning hole corresponding to the elastic frame 100. In actual use, only the soft and hard adjusting unit 010 needs to be inserted into the positioning hole. The field generator 400 in the soft and hard adjusting unit 010 can be embedded in the fixing frame 050 , and can also be laid above or below the fixing frame 050 .

With this kind of seat, the corresponding soft and hard adjustment unit 010 can be quickly adjusted on the installation surface to form a reasonable soft and hard distribution, thereby matching different driving conditions or corresponding to different passenger needs. It can provide passengers with good ride comfort.

Fourth Embodiment

Referring to FIG. 7 , a fourth embodiment of the present application provides a seat adjustment system for controlling the softness and hardness of the seat. The seat adjustment system includes an electronic control unit (Electronic Control Unit, ECU) and the seat provided in the third embodiment.

The soft and hard adjustment unit 010 in the seat is electrically connected to the ECU. In order to realize that the ECU sends a signal capable of adjusting the soft and hard adjustment unit 010, a signal generator is also provided between the ECU and the field generator 400 of the soft and hard adjustment unit 010. with signal amplifier.

The ECU controls the soft and hard adjustment unit 010 of the seat, so that the soft and hard adjustment unit 010 can adjust the soft and hard in an orderly manner, so as to achieve better comfort for passengers under various driving conditions in the current vehicle driving process.

In order to allow the ECU to automatically perform the corresponding soft and hard adjustment according to the effective environmental conditions, the seat adjustment system also includes a sensing device. The sensing device is electrically connected to the ECU. The sensing device receives the environmental information and transmits the environmental signal to the ECU. After receiving the environmental signal, the ECU analyzes the working condition of the field generator corresponding to the demand, and then controls the field generator when the demand occurs. The magnetic field controls all the soft and hard adjustment units 010 in the seat to form a reasonable soft and hard distribution.

According to the analysis and experiment of the actual driving environment of the vehicle, the sensing device may include one or more of road condition radar, temperature sensor, pressure sensor and acceleration sensor.

Road condition radar is used to receive road condition information and transmit road condition information to ECU. When the road conditions are relatively bumpy, the hardness of all the soft and hard adjusting units 010 can be appropriately reduced, so as to buffer the impact of bumps on passengers. The road condition radar can also predict the left and right turns in the driving distance in advance, and then make the soft and hard distribution on the seat in advance.

The temperature sensor is used to receive the temperature information of the environment and transmit the temperature information to the ECU. The temperature sensor can judge the viscosity of the current temperature of the magnetorheological fluid, so that the soft and hard adjustment of the ECU is more reasonable. The temperature sensor can also be used to adjust the temperature of the seat provided with the heating pad.

The pressure sensor is used to receive pressure information outside the elastic frame 100 and transmit the pressure information to the ECU. The pressure sensor can sense the pressure distribution of the passenger's current sitting position, and adjust the softness and hardness based on the reasonable pressure distribution collected from large data, thereby correcting the passenger's sitting posture.

The acceleration sensor is used to receive acceleration information and transmit the acceleration information to the ECU. When the car needs to turn left or right when changing lanes and overtaking, the road condition radar cannot predict it, but the acceleration sensor can instantly sense the acceleration and convert it into left and right turn information. Then adjust the soft and hard distribution on the seat in time. When the car accelerates and decelerates, the soft and hard distribution on the front and rear of the installation surface can also be adjusted to provide better comfort.

In addition to the ECU automatically adjusting the softness and hardness according to the effective environmental conditions, passengers can also adjust the softness and hardness of the seats independently according to their own conditions. Therefore, it is also necessary to set a console, which is electrically connected to the ECU, and is used for the passenger to input control commands autonomously. Passengers can independently control the soft and hard control unit to adjust the soft and hard distribution of the seat that suits them.

With the seat adjustment system provided by the present application, the distribution of softness and hardness on the seat can be adjusted through the ECU, thereby adapting to different driving conditions or different needs of passengers.

Fifth Embodiment

Referring to FIG. 7 , a fifth embodiment of the present application provides a vehicle for transportation. The vehicle includes a vehicle body and the seat adjustment system provided in the fourth embodiment.

The seat adjustment system is installed in the vehicle body. The vehicle body can be a car, a train, a ship, an airplane, etc. When the vehicle body is traveling on a route, the seat adjustment system can adjust the softness and hardness according to the driving state. At the same time, the seat adjustment system can also provide soft and hard distribution for passengers who take the vehicle to meet their own needs.

In addition, those skilled in the art can also make other changes within the spirit of this application. Of course, such changes made according to the spirit of this application should all be included in the scope disclosed in this application.

010: Soft and hard adjustment unit

100: Elastic Frame

200: compartment

400: Field Generator

210: Flow hole

110: wrapping space

111: Upper Space

113: Lower space

130: Traction

410: The first magnetic field line

430: The second magnetic field line

Claims (12)

A soft and hard adjusting unit, comprising: an elastic frame with a closed covering space; a partition layer, arranged in the covering space, and dividing the covering space into a connecting upper space and a lower space; a fluid filler , filled in the cladding space; a field generator, arranged outside the elastic frame, is used to apply a field to the fluid filling to change the viscosity of the fluid filling, thereby changing the fluid filling The flow damping between the upper space and the lower space controls the deformation of the elastic frame. The soft and hard adjusting unit according to claim 1, wherein: the partition is provided with a plurality of flow holes connecting the upper space and the lower space. The soft and hard adjustment unit according to claim 1, wherein: a traction member is arranged in the covering space, one end of the traction member is connected to the elastic frame, and the other end is connected to the spacer to maintain the spacer. The relative position of the layer and the elastic frame. The soft and hard adjusting unit according to claim 3, wherein: the traction member is a plurality of rubber connecting members. The soft and hard adjusting unit according to claim 1, wherein: the fluid filling is a magnetorheological fluid, and the field generator is a ring-shaped magnetic field line, and the ring-shaped magnetic field line surrounds the elastic frame. A seat, comprising a base plate and a plurality of soft and hard adjustment units according to claim 1; the base plate has an installation surface; the soft and hard adjustment units are arranged in parallel on the installation surface of the base plate. The seat of claim 6, wherein: the mounting surface is provided with a fixing frame, and the fixing frame is provided with a positioning hole corresponding to the elastic frame. A seat adjustment system includes an electronic control unit and the seat according to claim 6; the soft and hard adjustment unit is electrically connected with the electronic control unit. The seat adjustment system according to claim 8, further comprising a sensor device; the sensor device is electrically connected to the electronic control unit, the sensor device receives environmental information, and reports to the electronic control unit The unit transmits an ambient signal; the electronic control unit controls the field generator according to the ambient signal. The seat adjustment system of claim 9, wherein: the sensing device includes one or more of a road condition radar, a temperature sensor, a pressure sensor and an acceleration sensor; the road condition radar is used for receiving road condition information, and transmit the road condition information to the electronic control unit; the temperature sensor is used for receiving the temperature information of the environment, and transmits the temperature information to the electronic control unit; the pressure sensor is used for receiving The pressure information outside the elastic frame is transmitted to the electronic control unit; the acceleration sensor is used to receive the acceleration information and transmit the acceleration information to the electronic control unit. The seat adjustment system according to claim 8, further comprising a console; the console is electrically connected to the electronic control unit, and the console is used for inputting control instructions. A vehicle includes a vehicle body and the seat adjustment system according to claim 8; the seat adjustment system is installed in the vehicle body.

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