Air bag assembly, pneumatic comfort system and intelligent equipment

Abstract

The utility model relates to the technical field of pneumatic comfort systems, in particular to an air bag assembly, a pneumatic comfort system and intelligent equipment. The air bag assembly comprises a shell, an impeller and a bag body. The shell is provided with a ventilation chamber and a ventilation port, and the ventilation port is communicated with the ventilation chamber; the impeller is rotatably arranged in the ventilation cavity, and the rotating axis of the impeller is spaced from the gravity center of the impeller; the bag body is arranged on the shell, and the inflation space of the bag body is in fluid communication with the ventilation cavity so as to be inflated and deflated through the ventilation opening. When the bag body is inflated and deflated, airflow passing through the ventilation cavity drives the impeller to eccentrically swing, and the impeller which eccentrically swings drives the shell and the bag body to vibrate. According to the air bag assembly, the impeller capable of being driven by the airflow to swing eccentrically is arranged in the shell, the bag body is integrally arranged on the shell, the air bag assembly can vibrate, the space occupancy rate of the air bag assembly is reduced, and the setting cost of a vibration device is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to pneumatic comfort system technical field especially, relates to a kind of air bag assembly, pneumatic comfort system and intelligent equipment. BACKGROUND

[0002] One common application scenario of pneumatic comfort system is massage chair, massage can relax tense muscle, ligament, reduce fascia tension, has been loved by everybody, more and more chairs on the market have massage function.

[0003] The massage function of massage chair provided with pneumatic massage system is mainly realized by extrusion of air bag.For pneumatic massage mode, it realizes massage by repeatedly inflating and deflating air bag to make air bag repeatedly expand and contract.But the repeated extrusion of air bag along the main deformation direction to realize massage is relatively single, and cannot provide more comfortable massage effect.Therefore, there is still a vibrator and air bag, the vibrator applies vibration to air bag, and then the vibration is transmitted to the seated person, which can further enhance the massage effect.

[0004] However, the vibrator and the air bag are usually separately arranged, which results in that the vibrator and the air bag occupy a large volume, and are inconvenient to use and transfer.Furthermore, the vibrator usually adopts a motor to drive an eccentric wheel to generate vibration, and the corresponding motor needs to be powered to work, which has high energy consumption. UTILITY MODEL CONTENT

[0005] The utility model embodiment aims to provide an air bag assembly, pneumatic comfort system and intelligent equipment, to at least can improve the problem of large volume and high use cost of air bag assembly.

[0006] The utility model embodiment aims to provide an air bag assembly, pneumatic comfort system and intelligent equipment, to at least can improve the problem of large volume and high use cost of air bag assembly.

[0007] In the first aspect, the utility model embodiment provides an air bag assembly, which comprises a shell, an impeller and a bag body; the shell is provided with a ventilation chamber and a ventilation port, and the ventilation port is communicated with the ventilation chamber; the impeller is rotatably arranged in the ventilation chamber, and the rotation axis of the impeller is spaced from the center of gravity of the impeller; the bag body is arranged in the shell, and the inflation space of the bag body is in fluid communication with the ventilation chamber to inflate and deflate through the ventilation port; wherein the airflow passing through the ventilation chamber drives the impeller to eccentrically swing when the bag body inflates and deflates, and the eccentrically swinging impeller drives the shell and the bag body to vibrate.

[0008] In some embodiments, the inner wall of the housing is provided with a support column, and the impeller is rotatably disposed on the support column; the support column is provided with a plug hole and an overflow port, the overflow port communicating the ventilation chamber with the plug hole; the bag body is provided with an air nozzle, the air nozzle being plugged into the plug hole and communicating with the plug hole.

[0009] In some embodiments, the support column includes a first support column and a second support column, the first support column and the second support column are disposed opposite to each other, the outer diameter of the second support column is larger than the outer diameter of the first support column, the insertion hole includes a first insertion hole disposed on the first support column and a second insertion hole disposed on the second support column, the first insertion hole and the second insertion hole are in communication, the overflow port is disposed on the second support column and is in communication with the second insertion hole, and the impeller is rotatably disposed on the first support column and confined between the second support column and the inner wall of the housing opposite to the second support column.

[0010] In some embodiments, the bag body is glued and fixed to the housing.

[0011] In some embodiments, a partition wall is provided inside the housing, and the partition wall divides the ventilation chamber into a gas delivery area and a gas transition area, the gas delivery area and the gas transition area being in fluid communication; the impeller includes blades that extend into the gas delivery area, and when the bag is inflated or deflated, the airflow passing through the ventilation chamber drives the blades to move within the gas delivery area, thereby driving the impeller to rotate.

[0012] In some embodiments, a passage is provided on the partition wall, and the gas delivery area and the gas transition area are fluidly connected through the passage. The passage is offset from the vent.

[0013] In some embodiments, the bag body includes a first bag body and a plurality of second bag bodies, the first bag body being connected to the housing, and the plurality of second bag bodies being sequentially connected to the first bag body along the main deformation direction.

[0014] In some embodiments, the impeller is provided with a counterweight portion offset from the axis of rotation of the impeller.

[0015] Secondly, this utility model provides a pneumatic comfort system, which includes an air source device, a gas distribution device, and an air bag assembly as described in any of the above. The air source device is connected to the air bag assembly through the gas distribution device and supplies air to the air bag assembly. The gas distribution device controls the inflation and deflation of the air bag assembly.

[0016] Thirdly, this utility model embodiment provides an intelligent device, which includes the pneumatic comfort system.

[0017] The airbag assembly of this utility model includes a bag body and a housing with an eccentric impeller installed in the internal ventilation chamber. The bag body is mounted on the housing, and the inflation space is connected to the internal ventilation chamber of the housing. This allows the airflow through the ventilation chamber during inflation and deflation to drive the eccentric impeller to oscillate, thereby causing the housing and bag body to vibrate synchronously. This enables the airbag to vibrate during inflation and deflation, providing a vibration function. Furthermore, the bag body and the housing with the built-in eccentric impeller are integrated into a single airbag assembly, reducing the space occupied by the assembly and facilitating assembly. The impeller, which generates the oscillating vibration, is powered by the airflow during inflation and deflation, eliminating the need for a motor and additional power supply, thus reducing the energy consumption of the airbag assembly's vibration function.

[0018] The pneumatic comfort system of this utility model, with the aforementioned air bag assembly, provides basic pneumatic comfort functions while increasing vibration effects. Moreover, the vibration frequency is synchronized with the inflation and deflation frequency, resulting in a superior vibration comfort experience. It does not require additional energy consumption such as power-driven operation, which helps save costs.

[0019] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0020] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0021] Figure 1 This is a schematic diagram of the structure of the airbag assembly according to an embodiment of the present utility model;

[0022] Figure 2 This is an exploded view of the airbag assembly according to an embodiment of the present invention;

[0023] Figure 3 This is a partial cross-sectional view of the airbag assembly according to an embodiment of the present utility model;

[0024] Figure 4 This is a cross-sectional view of the housing of the built-in impeller according to an embodiment of the present utility model;

[0025] Figure 5 This is a partial structural schematic diagram of the intelligent device according to an embodiment of the present utility model.

[0026] The reference numerals in the detailed embodiments are as follows:

[0027] 100. Airbag assembly;

[0028] 1. Shell;

[0029] 11. Ventilation chamber; 111. Gas delivery area; 1111. Sub-gas delivery area; 112. Gas transition area;

[0030] 12. Vent;

[0031] 13. Support column; 131. Socket; 1311. First socket; 1312. Second socket; 132. Overflow port; 133. First support column; 134. Second support column;

[0032] 14. Partition wall; 141. Through opening;

[0033] 2. Impeller; 21. Wheel body; 22. Blades; 23. Counterweight;

[0034] 3. Bag body; 31. Inflation space; 32. Air valve; 33. First bag body; 34. Second bag body;

[0035] 4. Bearings;

[0036] 200. Seat backrest. Detailed Implementation

[0037] To facilitate understanding of this utility model, it will be described in more detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or there may be one or more intervening elements between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or there may be one or more intervening elements between them.

[0038] 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 invention pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the invention, are intended to cover non-exclusive inclusion.

[0039] In the description of the embodiments of this utility model, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0040] In the description of the embodiments of this utility model, the terms "first," "second," etc., are used to define components merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly defined.

[0041] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0042] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0043] Firstly, please refer to Figure 1 and Figure 2 This utility model embodiment provides an airbag assembly 100. The airbag assembly 100 can be a massage airbag assembly, a support airbag assembly, such as a lumbar support airbag assembly or a seat support airbag assembly.

[0044] The air bag assembly 100 includes a housing 1, an impeller 2, and a bag body 3. The housing 1 is provided with a ventilation chamber 11 and a ventilation port 12, and the ventilation port 12 is connected to the ventilation chamber 11. The impeller 2 is rotatably disposed in the ventilation chamber 11, and the rotation axis of the impeller 2 is spaced apart from the center of gravity of the impeller 2. The bag body 3 is disposed in the housing 1, and the inflation space 31 of the bag body 3 is in fluid communication with the ventilation chamber 11 so as to inflate and deflate through the ventilation port 12.

[0045] It should be noted that in this embodiment of the present invention, the fluid introduced into the vent 12 is described using gas as an example. In other embodiments, the fluid may also be liquid, gas-liquid mixture, etc., and the present invention does not limit it.

[0046] For housing 1 mentioned above, please refer to Figures 2 to 4 The housing 1 can be roughly disc-shaped, and the ventilation chamber 11 is also disc-shaped to fit the impeller 2. The inner wall of the housing 1 is provided with a support column 13, and the impeller 2 is rotatably mounted on the support column 13 to rotatably mount the impeller 2 in the ventilation chamber 11. The central axis of the support column 13 coincides with the central axis of the ventilation chamber 11.

[0047] The housing 1 may have an opening communicating with the bag body 3, thereby connecting the bag body 3 to the ventilation chamber 11, and allowing the bag body 3 to be inflated or deflated through the ventilation port 12. For other embodiments, please refer to... Figure 3 and Figure 4 The support column 13 is provided with an insertion hole 131 and an overflow port 132. The overflow port 132 can be arranged through the wall thickness of the support column 13 to connect the ventilation chamber 11 with the insertion hole 131. The bag body 3 is connected to the insertion hole 131 to fluidly connect the inflation space 31 of the bag body 3 with the ventilation chamber 11, so that the bag body 3 can be inflated or deflated through the ventilation port 12.

[0048] In some preferred embodiments, the bag body 3 is provided with an air nozzle 32, one end of which is connected to the inflation space 31 of the bag body 3, and the other end of which is inserted into and connected to the insertion hole 131. The insertion hole 131 is located on the support column 13, which helps to increase the depth of the insertion hole 131, enhance the connection strength between the air nozzle 32 and the housing 1, and enhance the airtightness between the air nozzle 32 and the housing 1. The insertion hole 131 is located at the central axis of the impeller 2, which helps to improve the problem of the air nozzle 32 interfering with the rotation of the impeller 2. Optionally, the bag body 3 is also glued and fixed to the housing 1, for example, the part of the bag body 3 adjacent to the air nozzle 32 is glued and connected to the housing 1 to further enhance the connection strength between the bag body 3 and the housing 1 and enhance the airtightness between the air nozzle 32 and the housing 1. It is understood that the insertion hole 131 extends to the outer surface of the housing 1, so that the air nozzle 32 can be inserted into the insertion hole 131 from the outside of the housing 1.

[0049] For impeller 2 mentioned above, please refer to Figures 2 to 4 The impeller 2 can be disc-shaped and includes a wheel body 21 and multiple blades 22. The multiple blades 22 are arranged around the periphery of the wheel body 21. Optionally, the multiple blades 22 are arranged at equal intervals around the periphery of the wheel body 21.

[0050] The rotation axis of impeller 2 is spaced from the center of gravity of impeller 2, that is, the center of gravity of impeller 2 is offset from the rotation axis of impeller 2. When impeller 2 rotates, impeller 2 will oscillate eccentrically. The eccentric oscillation of impeller 2 drives the housing 1 and bag body 3 to vibrate, so that the air bag assembly 100 produces a vibration effect.

[0051] In some embodiments, a mounting hole (not shown) may be provided along an axis spaced apart from the center of the impeller 2. The mounting hole cooperates with the shaft hole of the support column 13, thereby rotatably mounting the impeller 2 onto the housing 1 and achieving a distance between the rotation axis of the impeller 2 and the center of gravity of the impeller 2.

[0052] In some other embodiments, please refer to Figure 2 The impeller 2 is equipped with a counterweight 23. The center of the impeller 2 is located on the rotation axis, and the impeller 2 is rotatable around the rotation axis and mounted on the housing 1. The counterweight 23 is offset from the rotation axis of the impeller 2, thereby shifting the center of gravity of the impeller 2 away from its center. By setting the counterweight 23 to change the center of gravity of the impeller 2, the impeller 2 generates eccentric oscillation when rotating, which in turn drives the housing 1 and the bag body 3 to vibrate. Furthermore, in this embodiment, the central axis of the impeller 2 still coincides with the central axis of the ventilation chamber 11, which is beneficial for the precise fit between the impeller 2 and the housing 1, reducing the volume of excess space in the ventilation chamber 11 and reducing the volume of the housing 1. Optionally, the counterweight 23 is a weight block set at or near the periphery of the impeller 2, or the density at that location is greater than the density at other locations of the impeller 2, or the thickness of the impeller 2 at that location is increased to make its weight larger; the increased part is the counterweight 23.

[0053] In this embodiment of the invention, when the bag 3 is inflated or deflated, the airflow through the ventilation chamber 11 drives the impeller 2 to oscillate eccentrically. For an example, please refer to... Figure 4 The port of the vent 12, which is connected to the vent chamber 11, faces the blades 22 of the impeller 2. When the bag body 3 is inflated, gas is introduced through the vent 12. The introduced gas blows onto the blades 22 of the impeller 2, and the force exerted by the gas on the blades 22 will generate a component force perpendicular to the radial direction of the impeller 2, that is, generate torque on the impeller 2, thereby driving the impeller 2 to rotate and oscillate eccentrically. Finally, the gas flows into the bag body 3. When the bag body 3 is deflated, the gas in the bag body 3 flows into the vent chamber 11, and then the gas is discharged from the vent 12. Before being discharged from the vent 12, the gas will pass through the blades 22, which will also generate torque on the impeller 2, thereby driving the impeller 2 to rotate and oscillate eccentrically. The orientation of the vent 12 opening on the housing 1, especially the orientation of the inner end, can be arbitrary, as long as it ensures that the airflow entering and exiting the vent 12 can drive the blades 22 to move. Preferably, the centerline of the vent 12 is perpendicular to the rotation axis of the impeller 2, and the blades 22 are parallel to the rotation axis of the impeller 2, so as to maximize the efficiency of the gas entering the vent 12 in driving the impeller 2 to rotate, that is, to maximize the efficiency of driving the impeller 2 to rotate under the same airflow.

[0054] Understandably, in existing technologies, air bags are typically stacked outside a vibrator to drive the air bags to vibrate, thus providing vibration functionality. A vibrator typically includes a housing, a motor, and an eccentric wheel. The motor and eccentric wheel are housed within the housing, with the motor and eccentric wheel connected via a transmission. The motor drives the eccentric wheel to rotate. The air bag abuts against or is fixedly connected to the housing of the vibrator. When the motor drives the eccentric wheel to rotate, the eccentric wheel oscillates, generating vibration that drives the housing and air bag to vibrate. In this embodiment, however, by placing the impeller 2 inside the housing 1, the inflation space 31 of the bag 3 is fluidly connected to the ventilation chamber of the impeller 2 within the housing 1. The impeller 2 is driven to rotate by the gas flowing during the inflation and deflation of the bag 3. When the impeller 2 rotates, it generates eccentric oscillation based on the counterweight 23, thereby driving the housing 1 and bag 3 to vibrate. Therefore, no additional vibrator is required, which not only helps to reduce the size of the air bag assembly 100 but also eliminates the need for a motor and additional power supply, thus reducing the cost of the air bag assembly 100. Furthermore, the bag body 3 is connected to the shell 1, and the air bag assembly 100 can be installed as a whole on external equipment, which helps to reduce the difficulty of assembling the air bag assembly 100 on external equipment and makes the assembly process simpler.

[0055] The aforementioned bag 3 can be a single-layer bag or a multi-layer bag. A multi-layer bag allows for a greater inflation stroke. Moreover, depending on the purpose of the bag 3, it can be a massage air bag or a support air bag, such as a lumbar support air bag.

[0056] In some embodiments, please refer to Figure 2 and Figure 3 The bag body 3 includes a first bag body 33 and several second bags body 34. Based on the requirements of the massage function, the first bag body 33 and the second bags body 34 can be oblate spheroids. When contracted, the first bag body 33 and the second bags body 34 can shrink into a circular shape, thereby achieving a larger extension stroke to enhance the massage intensity and effect on the user. It is understood that the thickness direction of the first bag body 33 and the second bags body 34 is their main deformation direction; that is, the first bag body 33 and the second bags body 34 mainly deform along the thickness direction when inflated and deflated.

[0057] In this embodiment of the invention, the first bag body 33 is connected to the housing 1, and several second bags 34 are sequentially connected to the first bag body 33 along the main deformation direction. The inflation space of the first bag body 33 is connected to the inflation space of the adjacent second bag body 34, and the inflation space of the adjacent second bag body 34 are connected through an overflow channel. The arrangement of several second bags 34 helps to increase the extension and retraction stroke of the bag body 3. The air nozzle 32 is located at the bottom of the first bag body 33 and is connected to the inflation space of the first bag body 33. When the bag body 3 is installed on the housing 1, it is fixed to the housing 1 by inserting the air nozzle 32 into the insertion hole 131, and the bottom of the first bag body 33 can be further fixed to the housing 1 by adhesive, so that the bag body 3 is fixedly installed on the housing 1.

[0058] It is understood that the first bag 33 and the plurality of second bags 34 are all connected to the insertion hole 131, so that the first bag 33 and the plurality of second bags 34 can be inflated or deflated through the insertion hole 131. Exemplarily, each of two adjacent first bags 33 and second bags 34 has an opening on its opposite sides, and the edges of the two openings are connected to each other to serve as an overflow channel, thereby connecting the first bags 33 and second bags 34 to each other and communicating the spaces within the first bags 33 and second bags 34; each of two adjacent second bags 34 has an opening on its opposite sides, and the edges of the two openings are connected to each other to serve as an overflow channel, thereby connecting the two adjacent second bags 34 to each other and communicating the spaces within the two adjacent second bags 34.

[0059] It should be noted that the overflow port 132 extends through the wall of the support column 13 along its thickness direction. When the impeller 2 is fitted onto the support column 13, the inner annular surface of the impeller 2 will cover the overflow port 132, resulting in a reduction in the communication area between the ventilation chamber 11 and the insertion hole 131. To improve this problem, in some embodiments, please refer to... Figure 3 and Figure 4 The support column 13 includes a first support column 133 and a second support column 134, which are disposed opposite to each other. The outer diameter of the second support column 134 is larger than the outer diameter of the first support column 133. The insertion hole 131 includes a first insertion hole 1311 disposed on the first support column 133 and a second insertion hole 1312 disposed on the second support column 134. The first insertion hole 1311 and the second insertion hole 1312 communicate with each other. The overflow port 132 is disposed on the second support column 134 and communicates with the second insertion hole 1312. The impeller 2 is rotatably disposed on the first support column 133 and limited between the second support column 134 and the inner wall of the housing 1 opposite to the second support column 134. Exemplarily, the second support column 134 and the inner wall of the housing 1 slide against the two end faces of the impeller 2, respectively.

[0060] Understandably, along the axial direction of the ventilation chamber 11, the thickness of the impeller body 21 is less than the thickness of the ventilation chamber 11, resulting in a gap between the impeller body 21 and the inner wall of the housing 1. This gap communicates with the overflow port 132, thus mitigating the problem of reduced communication area between the ventilation chamber 11 and the insertion hole 131 caused by the inner annular surface of the impeller 2. Furthermore, by limiting the position of the impeller 2 along the axial direction of the support column 13, it is beneficial to mitigate the problem of the impeller 2 sliding along the support column 13 and impacting the inner wall of the housing 1, thereby improving the stability of the impeller 2's rotation and reducing noise.

[0061] In this embodiment of the utility model, please refer to Figure 3 and Figure 4 The housing 1 is provided with a partition wall 14, which divides the ventilation chamber 11 into a gas delivery zone 111 and a gas transition zone 112, which are in fluid communication. The impeller 2 has its wheel body 21 located in the gas transition zone 112, which is in fluid communication with the insertion hole 131 through the overflow port 132. The blades 22 extend into the gas delivery zone 111.

[0062] For example, the partition wall 14 is annular, and its circumferential axis coincides with the rotation axis of the impeller 2. Therefore, the gas delivery zone 111 is annular and surrounds the gas transition zone 112. Consequently, when the impeller 2 rotates, the distance between the blade 22 and the partition wall 14 remains unchanged, and the blade 22 can continuously move within the gas delivery zone 111. The end face of the partition wall 14 mates with the end face of the wheel body 21, thereby dividing the ventilation chamber 11 into the gas delivery zone 111 and the gas transition zone 112 at the partition wall 14. Optionally, the partition wall 14 includes two opposing parts that protrude from the inner walls of opposite sides of the housing 1 in the thickness direction and are located on opposite sides of the impeller 2 in the thickness direction. Optionally, the blade 22 is entirely located in the gas delivery zone 111, that is, the blade 22 is located on the side of the partition wall 14 away from the support column 13.

[0063] When the bag 3 is inflated or deflated, the airflow through the ventilation chamber 11 drives the blades 22 to move within the gas delivery zone 111, thereby rotating the impeller 2. Specifically, when the bag 3 is inflated, the gas first enters the gas delivery zone 111 through the ventilation port 12, driving the blades 22 to move, and then enters the gas transition zone 112. Afterward, it enters the inflation space 31 of the bag 3 through the overflow port 132, the insertion hole 131, and the air nozzle 32. When the bag 3 is deflated, the gas in its inflation space 31 enters the gas transition zone 112 through the insertion hole 131, the insertion hole 131, and the overflow port 132, then flows into the gas delivery zone 111, driving the blades 22 to move, and finally exits from the ventilation port 12.

[0064] In some embodiments, the partition wall 14 and the wheel body 21 are not strictly sealed, and there may be a small gap between them, such as 1 mm, 1.5 mm, 2 mm, etc., which allows the gas delivery area 111 and the gas transition area 112 to have fluid communication through the gap, and also helps to reduce the friction of the impeller 2 rotating in the housing 1.

[0065] In other embodiments, the partition wall 14 and the wheel body 21 are in a sliding seal or near-sliding seal. The partition wall 14 is provided with a through-hole 141, through which the gas delivery zone 111 and the gas transition zone 112 are fluidly connected. Specifically, the through-hole 141 is a notch opened on the partition wall 14 to connect the gas delivery zone 111 and the gas transition zone 112. Other positions of the partition wall 14 are in a sliding seal or near-sliding seal with the wheel body 21, so that gas between the gas delivery zone 111 and the gas transition zone 112 can only flow through this through-hole 141.

[0066] In a further preferred embodiment, please refer to Figure 4 The guide port 141 and the vent port 12 are offset. For example, when viewed radially along the impeller 2, the projection of the guide port 141 onto the housing 1 is spaced apart from the vent port 12. By offsetting the guide port 141 from the vent port 12, it is beneficial to increase the distance the gas travels within the gas delivery zone 111, thereby improving the efficiency of the airflow driving the impeller 2 to rotate. More preferably, the guide port 141 is located at the position with the greatest circumferential distance from the vent port 12, such as when the guide port 141 and the vent port 12 are located on opposite sides of the support column 13.

[0067] When the bag 3 is inflated, the gas introduced through the vent 12 flows in the gas delivery zone 111, driving the blades 22 to move within the gas delivery zone 111. The gas then flows through the guide port 141 to the gas transition zone 112, and finally into the bag 3. When the bag 3 is deflated, the gas inside the bag 3 flows to the gas transition zone 112, and then through the guide port 141 to the gas delivery zone 111. The gas in the gas delivery zone 111 flows towards the vent 12, driving the blades 22 to move within the gas delivery zone 111, and finally exits from the vent 12. By connecting the gas delivery zone 111 and the gas transition zone 112 through the guide port 141, some gas can flow along the gas delivery zone 111, increasing the gas's travel distance around the support column 13 within the ventilation chamber 11, thereby improving the efficiency of the airflow driving the impeller 2.

[0068] In some embodiments, please refer to Figure 4The impeller 2, with its multiple blades 22, works in conjunction with the partition wall 14 and the inner wall of the casing 1 to divide the gas delivery zone 111 into multiple sub-gas delivery zones 1111. It can be understood that, viewed circumferentially along the partition wall 14, the shape and size of the blades 22 are adapted to the shape and size of the cross-section of the gas delivery zone 111. When the impeller 2 rotates, each sub-gas delivery zone 1111 connects sequentially to the guide port 141, that is, each sub-gas delivery zone 1111 connects sequentially to the gas transition zone 112. In other words, the impeller 2 and the casing 1 form a positive displacement pump structure, which is beneficial to improving the energy efficiency of the gas driving the impeller 2 to rotate and increasing the efficiency of the airflow driving the impeller 2 to rotate.

[0069] In some embodiments, please refer to Figures 2 to 4 The air bag assembly 100 also includes a bearing 4, which is disposed between the support column 13 and the impeller 2. The impeller 2 is rotatably mounted on the support column 13 via the bearing 4, which helps reduce the resistance to the rotation of the impeller 2, improves the efficiency of airflow driving the impeller 2, and reduces wear between the impeller 2 and the support column 13. Optionally, the bearing 4 is a ball bearing 4, a sliding bearing 4, etc. When the bearing 4 is sleeved on the support column 13, the bearing 4 is positioned between the second support column 134 and the inner wall of the housing 1 opposite to the second support column 134. For example, the second support column 134 and the inner wall of the housing 1 slide against each other against the two end faces of the bearing 4.

[0070] Secondly, this utility model embodiment provides a pneumatic comfort system, which includes an air source device, a gas distribution device, and an air bag assembly 100. The bag body 3 of the air bag assembly 100 can be a massage air bag body or a support air bag body, such as a lumbar support air bag body; the corresponding pneumatic comfort system is a pneumatic massage system or a pneumatic support system.

[0071] The air source device is used to supply air, and can be, but is not limited to, an air pump, an air tank, or an air compressor. The gas distribution device is used to control the opening and closing of the air passage between the air source device and the air bag assembly 100, and can be, but is not limited to, an air valve or a fluid oscillator. The air source device and the gas distribution device can also be integrated into a pump-valve structure. Specifically, the air source device is connected to the gas distribution device via an air pipe, and the gas distribution device is connected to the air inlet 12 of the air bag assembly 100 via an air pipe. The gas distribution device is also used to connect the air bag assembly 100 to the external environment to release air from the bag body 3 of the air bag assembly 100. The pneumatic comfort system possesses the structural features and beneficial effects of the air bag assembly 100, which will not be elaborated here.

[0072] Thirdly, this utility model embodiment provides an intelligent device, which includes a pneumatic comfort system. The intelligent device possesses the structural features and beneficial effects of the pneumatic comfort system and the airbag assembly 100, which will not be elaborated here. Optionally, the intelligent device can be an intelligent massage chair, vehicle seat, office chair, mattress, etc.

[0073] In this invention, the airbag assembly 100 of the pneumatic comfort system is mounted on the smart device, the housing 1 is fixed to the smart device, and the bag body 3 is located on the side closer to the user. For an exemplary smart device of this invention, please refer to [link to relevant documentation]. Figure 5 A seat equipped with the aforementioned pneumatic comfort system is provided, specifically a seat with a pneumatic massage system. The air bag assembly 100 is located on the seat back 200, wherein the housing 1 is fixed to the seat back 200, and the bag body 3 faces the occupant and is located away from the seat back 200. The air source device and the gas distribution device can be located on the seat back 200 or outside the seat back 200. When the bag body 3 is inflated, it can squeeze and massage the occupant's back panel. During the inflation and deflation of the bag body 3, the impeller 2 drives the bag body 3 to vibrate, and the bag body 3 synchronously transmits the vibration to the occupant to provide a vibration massage effect.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail; although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An airbag assembly characterized by, The air bag assembly comprises: a housing provided with a ventilation chamber and a ventilation port in communication with the ventilation chamber; an impeller rotatably arranged in the ventilation chamber, the rotation axis of the impeller being spaced from the center of gravity of the impeller; a bag arranged in the housing, the air-filled space of the bag being in fluid communication with the ventilation chamber to inflate and deflate through the ventilation port; wherein the airflow through the ventilation chamber drives the impeller to eccentrically swing when the bag inflates and deflates, and the eccentrically swinging impeller drives the housing and the bag to vibrate.

2. The air bag assembly according to claim 1, wherein: an inner wall of the housing is provided with a support, and the impeller is rotatably arranged on the support; the support is provided with a plug hole, and the support is provided with an overflow port in communication with the plug hole and the ventilation chamber; the bag is provided with an air nozzle, and the air nozzle is plugged into and in communication with the plug hole.

3. The air bag assembly according to claim 2, wherein: the support comprises a first support and a second support, the first support and the second support are oppositely arranged, the outer diameter of the second support is greater than that of the first support, the plug hole comprises a first plug hole arranged on the first support and a second plug hole arranged on the second support, the first plug hole is in communication with the second plug hole, the overflow port is arranged on the second support and in communication with the second plug hole, and the impeller is rotatably arranged on the first support and limited between the second support and the inner wall of the housing opposite to the second support.

4. The air bag assembly according to claim 1, wherein: the bag is fixedly attached to the housing.

5. The air bag assembly according to claim 1, wherein: a partition wall is arranged in the housing, and the partition wall divides the ventilation chamber into a gas conveying area and a gas transition area, the gas conveying area and the gas transition area are in fluid communication; the impeller comprises a blade, the blade extends into the gas conveying area, and the airflow through the ventilation chamber drives the blade to move in the gas conveying area to drive the impeller to rotate when the bag inflates and deflates.

6. The air bag assembly according to claim 5, wherein: a through port is formed in the partition wall, the gas conveying area and the gas transition area are in fluid communication through the through port, and the through port is arranged staggered with the ventilation port.

7. The air bag assembly according to claim 1, wherein: the bag comprises a first bag and a plurality of second bags, the first bag is connected to the housing, and the plurality of second bags are connected to the first bag in sequence along a main deformation direction.

8. The air bag assembly according to claim 1, wherein: the impeller is provided with a counterweight portion deviated from the rotation axis of the impeller.

9. A pneumatic comfort system characterized in that, The air bag assembly according to any one of claims 1 to 8 is connected with a gas source device and a gas distribution device, the gas source device supplies gas to the air bag assembly through the gas distribution device, and the gas distribution device controls the air bag assembly to inflate and deflate.

10. A smart device, comprising: A pneumatic comfort system comprising the air spring of claim 9.

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