Massage air bag and automobile seat

Abstract

The application provides a massage air bag and a car seat. The massage air bag comprises at least three sub-air bag bodies arranged in a stacking manner along a first direction; at least one gas channel is communicated between two adjacent sub-air bag bodies; the sub-air bag body has a first side and a second side distributed along the first direction; each gas channel communicated with the first side and the second side of the same sub-air bag body has no overlap in the orthogonal projection of a standard plane; and the first direction is perpendicular to the standard plane. By adopting the discontinuous and through structure mode, the gas injected by the bottom air bag is avoided from directly rushing to the top surface of the topmost air bag, the bottommost sub-air bag body and the topmost sub-air bag body are avoided from being opened first, the sandwiching and extruding effect of the upper and lower sub-air bag bodies on the middle sub-air bag body is avoided, the effect that each sub-air bag body is opened in turn from the bottommost sub-air bag body upwards is realized, and then the relatively uniform and sequential inflation opening effect of each sub-air bag body is realized, and the generation of the instantaneous air explosion phenomenon of the middle air bag is avoided.

Description

Technical Field

[0001] This application relates to the field of automotive seat technology, and more particularly to a massage airbag and an automotive seat. Background Technology

[0002] Because the traditional double-layer airbag seat pneumatic massage top pressure stroke was relatively small, it could no longer meet the requirements of passenger comfort. Consequently, massage airbag products with three or more layers of sub-body elements emerged on the market, providing a better massage comfort experience for vehicle occupants and gaining market acceptance.

[0003] Massage airbags on the market with three or more sub-units are constructed by thin-film welding, forming a multi-layered airbag. A through-hole connects the various sub-units for airflow. The structural features are: the first layer has at least one air tube for inflation and deflation under the control of an airflow valve; holes connect the first layer to the other layers, forming a continuous airflow path. This design offers the advantage of easier mold arrangement for welding the connecting holes between the sub-units, resulting in a simpler manufacturing process.

[0004] However, in actual vehicle seat massage applications, the aforementioned traditional multi-layered airbags often produce a brief, unusual noise during inflation due to the large airflow, causing discomfort to the seat user. Please refer to [link / reference needed]. Figure 1 and Figure 2 The brief abnormal noise was caused by the following: When sub-airbag #1 inflated and opened, the airflow passed through the holes between the layers and directly impacted the top surface of sub-airbag #3, causing it to inflate. After sub-airbags #1 and #3 inflated and opened, sub-airbag #2, constrained by the cover and foam, remained under negative pressure relative to sub-airbags #1 and #3 due to compression, and had not yet inflated. As sub-airbags #1 and #3 continued to inflate and expand, under stronger injection pressure, airflow began to flow into the area around the pores of sub-airbag #2, creating an opening. At this point, airflow entered sub-airbag #2 and it opened. At this moment, the occupant's body squeezes the already inflated airbag through the seat cover. The already inflated bottom layer 1# and 3# sub-airbags together instantly replenish the newly opened 2# sub-airbag (at this time, 1# and 3# sub-airbags will briefly retract). Combined with the airflow from the trachea, the 2# sub-airbag rapidly expands, causing a burst sound as the airbag pops open.

[0005] To address the problem of brief abnormal noises generated during the inflation process of airbags in existing technologies, this application proposes a massage airbag and a car seat. Summary of the Invention

[0006] The purpose of this application is to address the above-mentioned problems by providing a massage airbag and a car seat.

[0007] In a first aspect, this application provides a massage air bag, comprising at least three sub-air bag bodies stacked along a first direction; each sub-air bag body located at an end is provided with at least one air port for exchanging gas with the outside; at least one gas channel is connected between two adjacent sub-air bag bodies; each sub-air bag body has a first side and a second side distributed along the first direction; the gas channels connected to the first side and the second side of the same sub-air bag body do not overlap in their orthographic projections on a standard plane; the first direction is perpendicular to the standard plane.

[0008] According to the technical solutions provided in certain embodiments of this application, the number of gas channels communicating with the first side and the number of gas channels communicating with the second side are the same on the same sub-gas bag body.

[0009] According to the technical solutions provided in certain embodiments of this application, the massage air bag includes at least four sub-air bags distributed along the first direction; the orthographic projections of the gas channels connected on the opposite sides of two sub-air bags that are connected to the same gas channel on the standard plane completely overlap.

[0010] According to the technical solutions provided in certain embodiments of this application, the number of gas channels communicating with the first side and the number of gas channels communicating with the second side are different on the same sub-gas bag body.

[0011] According to the technical solutions provided in certain embodiments of this application, the massage air bag includes at least four sub-air bags distributed along the first direction; the orthographic projections of the gas channels connected on the opposite sides of two sub-air bags that are connected to the same gas channel on the standard plane completely overlap.

[0012] According to the technical solutions provided in certain embodiments of this application, the gas channels connected on opposite sides of two sub-gas bags that are connected to the same gas channel may have their orthogonal projections on the standard plane overlapping or not overlapping at all.

[0013] According to the technical solutions provided in certain embodiments of this application, the orthographic projection spacing of each gas channel connected on the first side and the second side of the same sub-gas bag body on the standard plane is equal.

[0014] According to the technical solutions provided in certain embodiments of this application, the sub-airbag body includes two elastic surface layers; the edges of the two elastic surface layers are welded together; ventilation holes are opened at corresponding positions on the elastic surface layers of two adjacent sub-airbag bodies that are close to each other; the elastic surface layers around the two ventilation holes at corresponding positions are fused to form the gas channel.

[0015] According to the technical solutions provided in certain embodiments of this application, the elastic surface layer around the gas channel is provided with an uneven structure.

[0016] Secondly, this application provides an automobile seat, including at least one massage airbag as described in any of the preceding claims, and further including a seat frame, seat foam, seat cover, air hose assembly, air source, and control valve; the massage airbag is disposed between the seat cover and the seat foam, or between the seat foam and the seat frame; the air inlet of the massage airbag is connected to the air source and the control valve through the air hose assembly.

[0017] Compared with the prior art, the beneficial effects of this application are as follows: The massage air bag provided by this application includes at least three stacked and centrally connected sub-air bags. The gas channels connected to both sides of the same sub-air bag do not overlap in the orthographic projection on the standard plane, that is, they are staggered. This results in a non-through-hole structure between the layers of each sub-air bag. By adopting a discontinuous through-hole structure, the gas injected into the bottom air bag is prevented from directly rushing to the top surface of the top air bag. This also avoids the bottom and top sub-air bags opening first, and the sandwiching effect formed by the upper and lower sub-air bags on the middle sub-air bag. This achieves the effect of opening each sub-air bag sequentially from the bottom sub-air bag upwards. Furthermore, it achieves a relatively uniform sequential inflation and opening effect for each sub-air bag, avoiding the instantaneous air explosion phenomenon of the middle air bag. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a massage airbag in the prior art;

[0019] Figure 2 A schematic diagram of the inflation process of a massage airbag in the prior art;

[0020] Figure 3 This is a schematic diagram of the structure of the massage air bag (flattened state) provided in Embodiment 1 of this application;

[0021] Figure 4 for Figure 3 A magnified view of part A in the middle;

[0022] Figure 5 This is a schematic diagram of the inflation process of the massage air bag provided in Embodiment 1 of this application;

[0023] Figure 6 This is a schematic diagram of the structure of the massage air bag (flattened state) provided in Embodiment 2 of this application;

[0024] Figure 7 This is a schematic diagram of the inflation process of the massage air bag provided in Embodiment 2 of this application;

[0025] Figure 8 This is a schematic diagram of the structure of the massage air bag (flattened state) provided in Embodiment 3 of this application;

[0026] Figure 9 This is a schematic diagram of the structure of the massage air bag (flattened state) provided in Embodiment 4 of this application;

[0027] Figure 10 This is a schematic diagram of the structure of the massage air bag (flattened state) provided in Embodiment 5 of this application;

[0028] Figure 11 This is a structural schematic diagram of the car seat (without a vibrator) provided in Embodiment 6 of this application;

[0029] Figure 12 This is a structural schematic diagram of a car seat (with a vibrator) provided in Embodiment 6 of this application;

[0030] Figure 13 This is a side view of the car seat (massage airbag not inflated) provided in Embodiment 6 of this application;

[0031] Figure 14 This is a side view of the car seat (massage airbag inflated state) provided in Embodiment 6 of this application.

[0032] The text labels in the image represent:

[0033] 1. Massage airbag; 101. First sub-airbag body; 102. Second sub-airbag body; 103. Third sub-airbag body; 104. Fourth sub-airbag body; 201. First gas channel; 202. Second gas channel; 203. Third gas channel; 3. Air inlet; 4. Seat; 401. Seat cushion; 402. Backrest; 5. Vibrator; 6. Seat foam; 7. Control valve; 8. Air source; 9. Wiring harness; 10. Control switch; 11. Air pipe assembly; 12. Seat cover. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solution of this application, the application will be described in detail below with reference to the accompanying drawings. The description in this section is only exemplary and explanatory, and should not be used to limit the scope of protection of this application.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "clockwise," "counterclockwise," "front end," "rear end," and "side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the disclosed product is in use. They are only for the convenience of describing this disclosure 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, and therefore should not be construed as a limitation of this disclosure. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of this disclosure, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," "join," and "dock" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0039] Example 1

[0040] Please refer to Figure 3 This embodiment provides a massage air bag, including at least three sub-air bag bodies stacked along a first direction; at least one air port 3 for exchanging gas with the outside is provided on the sub-air bag body located at the end; at least one gas channel is connected between two adjacent sub-air bag bodies; the sub-air bag body has a first side and a second side distributed along the first direction; the gas channels connected to the first side and the second side of the same sub-air bag body do not overlap in the orthographic projection on a standard plane; the first direction is perpendicular to the standard plane.

[0041] Furthermore, on the same sub-gas bag body, the number of gas channels communicating with the first side and the number of gas channels communicating with the second side are the same.

[0042] In this embodiment, the massage airbag includes three sub-airbags distributed along a first direction, wherein the first direction is... Figure 3 In the vertical direction, the three sub-airbags are sequentially designated as the first sub-airbag 101, the second sub-airbag 102, and the third sub-airbag 103 from bottom to top. In this embodiment, the air inlet 3 is located on the right side of the first sub-airbag 101 and is used to connect to an air source to inflate and deflate the massage airbag. The uppermost sub-airbag has a gas channel only on its lower side, and the lowermost sub-airbag has a gas channel only on its upper side. In this embodiment, the first sub-airbag 101 has a gas channel on its upper side, and the third sub-airbag 103 has a gas channel on its lower side. The gas channel connecting the first sub-airbag 101 and the second sub-airbag 102 is designated as the first gas channel 201, and the gas channel connecting the second sub-airbag 102 and the third sub-airbag 103 is designated as the first gas channel 201. The channel is designated as the second gas channel 202. In this embodiment, there is one first gas channel 201 and one second gas channel 202, meaning they are the same number. The first side refers to the lower side of the sub-gas bag body, and the second side refers to the upper side of the sub-gas bag body. In this embodiment, the sub-gas bag body with gas channels connected to both the upper and lower sides is the second sub-gas bag body 102. The standard surface is any plane perpendicular to the first direction, such as the bottom surface of the flattened first sub-gas bag body 101. The orthographic projections of the first gas channel 201 and the second gas channel 202 on the standard surface do not overlap. No overlap means they are completely non-overlapping, meaning there is a gap between the two projections or they are tangent to each other, which means the two gas channels are misaligned.

[0043] Furthermore, the sub-airbag body includes upper and lower elastic surface layers; the edges of the two elastic surface layers are welded together; ventilation holes are opened at corresponding positions on the elastic surface layers of two adjacent sub-airbag bodies that are close to each other; the elastic surface layers around the two ventilation holes at corresponding positions are fused to form the gas channel.

[0044] Further, please refer to Figure 4 The elastic surface around the gas channel is provided with an uneven structure; by providing the uneven structure, the upper and lower elastic surfaces of the sub-gas bag body are not completely tightly attached, that is, the upper and lower elastic surfaces are not completely in contact. When the airflow rushes towards the gas bag body, it is easier to push the two contacting elastic surfaces apart.

[0045] Figure 5This is a schematic diagram of the inflation process of the massage airbag in this embodiment. During inflation, gas first enters the first sub-airbag body 101 through the air inlet 3 to inflate it, opening the first sub-airbag body 101. Gas gradually fills the first sub-airbag body 101 and flows through the first gas channel 201 towards the elastic surface layer above the second sub-airbag body 102. Under the impact of the airflow, the second sub-airbag body 102 is opened and injected with air. Then, the airflow flows through the second gas channel 202 to the elastic surface layer above the third sub-airbag body 103, opening the third sub-airbag body 103 and gradually inflating it. Thus, the first sub-airbag body 101, the second sub-airbag body 102, and the third sub-airbag body 103 are opened sequentially, avoiding the sudden expansion of the middle sub-airbag body (the second sub-airbag body 102) when it is compressed, avoiding the air burst noise generated by the rapid inflation of the airbag, and reducing abnormal noise.

[0046] Example 2

[0047] Please refer to Figure 6 This embodiment provides a massage air bag, which is an improvement on embodiment 1. The similarities between the two embodiments will not be repeated. The difference is that the massage air bag includes at least four sub-air bags distributed along the first direction; the orthographic projections of the gas channels connected on the opposite sides of two sub-air bags that are connected to the same gas channel on the standard plane are completely coincident.

[0048] In this embodiment, the massage airbag includes four sub-airbags distributed along a first direction, which are sequentially referred to as the first sub-airbag 101, the second sub-airbag 102, the third sub-airbag 103, and the fourth sub-airbag 104 from bottom to top; the gas channel connecting the first sub-airbag 101 and the second sub-airbag 102 is referred to as the first gas channel 201, the gas channel connecting the second sub-airbag 102 and the third sub-airbag 103 is referred to as the second gas channel 202, and the gas channel connecting the third sub-airbag 103 is referred to as the fourth sub-airbag 104. The gas channel connecting the gas bag body 103 and the fourth sub-gas bag body 104 is referred to as the third gas channel 203. In this embodiment, there is one first gas channel 201, one second gas channel 202, and one third gas channel 203, i.e., the three are the same number. The orthographic projections of the first gas channel 201 and the third gas channel 203 on the standard plane completely overlap, i.e., these two gas channels are directly opposite each other and are both offset from the second gas channel 202.

[0049] Figure 7This is a schematic diagram of the inflation process of the massage airbag in this embodiment. During inflation, gas first enters the first sub-airbag body 101 through the air inlet 3 to inflate it, opening the first sub-airbag body 101. The gas gradually fills the first sub-airbag body 101 and rushes towards the elastic surface layer above the second sub-airbag body 102 through the first gas channel 201. Under the impact of the airflow, the second sub-airbag body 102 is opened and injected with air. Then, the airflow flows through the second gas channel 202 to the elastic surface layer above the third sub-airbag body 103, opening the third sub-airbag body 103 and gradually inflating it. Finally, the airflow flows through the third gas channel 203 to the elastic surface layer above the fourth sub-airbag body 104, opening the fourth sub-airbag body 104 and gradually inflating it. This allows the first sub-airbag 101, the second sub-airbag 102, the third sub-airbag 103, and the fourth sub-airbag 104 to open sequentially, avoiding the sudden expansion of the intermediate sub-airbags (the second sub-airbag 102 and the third sub-airbag 103) when they open under compression, thus preventing the air burst noise generated by the rapid inflation of the airbags and reducing abnormal noise.

[0050] Example 3

[0051] Please refer to Figure 8 This embodiment provides a massage air bag, which is an improvement on embodiment 1. The similarities between the two embodiments will not be repeated. The difference is that the number of gas channels communicating with the first side and the number of gas channels communicating with the second side are different on the same sub-air bag body.

[0052] In this embodiment, there are two first gas channels 201 and one second gas channel 202, meaning the two are not the same number; the first gas channel 201 and the two second gas channels 202 are arranged in a staggered manner.

[0053] Furthermore, the orthographic projection spacing of each gas channel connected on the first and second sides of the same sub-gas bag body on the standard plane is equal.

[0054] In this embodiment, the orthographic projection of the first gas channel 201 on the standard plane is located between the orthographic projections of the two second gas channels 202 on the standard plane, and the distances from the two are equal, that is, the three orthographic projections are arranged at equal intervals.

[0055] During inflation, gas first enters the first sub-airbag 101 through the air inlet 3 to inflate it, opening the first sub-airbag 101. Gas gradually fills the first sub-airbag 101 and flows through the two first gas channels 201 towards the elastic surface layer above the second sub-airbag 102. Under the impact of the airflow, the second sub-airbag 102 is opened and injected with air. Then, the airflow flows through the second gas channel 202 to the elastic surface layer above the third sub-airbag 103, opening the third sub-airbag 103 and gradually inflating it. In this way, the first sub-airbag 101, the second sub-airbag 102, and the third sub-airbag 103 are opened sequentially, avoiding the sudden expansion of the middle sub-airbag (the second sub-airbag 102) when it is compressed, avoiding the air burst noise generated by the rapid inflation of the airbag, and reducing noise and abnormal sounds.

[0056] Example 4

[0057] Please refer to Figure 9 This embodiment provides a massage air bag, which is an improvement on embodiment 3. The similarities between the two embodiments will not be repeated. The differences are: the number of the first gas channel 201 is one, and the number of the second gas channel 202 is two, that is, the two are not the same; the second gas channel 202 and the two first gas channels 201 are staggered; the orthographic projection of the second gas channel 202 on the standard plane is located between the orthographic projections of the two first gas channels 201 on the standard plane, and the distance from the two is equal, that is, the three orthographic projections are arranged at equal intervals.

[0058] During inflation, gas first enters the first sub-airbag 101 through the air inlet 3 to inflate it, opening the first sub-airbag 101. Gas gradually fills the first sub-airbag 101 and rushes through the first gas channel 201 towards the elastic surface layer above the second sub-airbag 102. Under the impact of the airflow, the second sub-airbag 102 is opened and injected with air. Then, the airflow flows through the two second gas channels 202 to the elastic surface layer above the third sub-airbag 103, opening the third sub-airbag 103 and gradually inflating it. In this way, the first sub-airbag 101, the second sub-airbag 102, and the third sub-airbag 103 are opened sequentially, avoiding the sudden expansion of the middle sub-airbag (the second sub-airbag 102) when it is compressed, avoiding the air burst noise generated by the rapid inflation of the airbag, and reducing noise and abnormal sounds.

[0059] Example 5

[0060] Please refer to Figure 10The embodiment provides a massage air bag, which is an improvement on embodiment 4. The similarities between it and embodiment 2 will not be repeated. The difference is that the massage air bag includes at least four sub-air bags distributed along the first direction; the orthographic projections of the gas channels connected on the opposite sides of two sub-air bags that are connected to the same gas channel on the standard plane are completely coincident.

[0061] In this embodiment, the massage airbag includes four sub-airbags distributed along a first direction. The four sub-airbags are designated from bottom to top as a first sub-airbag 101, a second sub-airbag 102, a third sub-airbag 103, and a fourth sub-airbag 104. The gas channel connecting the first sub-airbag 101 and the second sub-airbag 102 is designated as a first gas channel 201; the gas channel connecting the second sub-airbag 102 and the third sub-airbag 103 is designated as a second gas channel 202; and the gas channel connecting the third sub-airbag 103 and the fourth sub-airbag 104 is designated as... The third gas channel 203 is provided. In this embodiment, there is one first gas channel 201, two second gas channels 202, and one third gas channel 203. The orthographic projections of the first gas channel 201 and the third gas channel 203 on the standard plane completely overlap, that is, these two gas channels are directly opposite each other and are offset from the second gas channel 202. The orthographic projection of the first gas channel 202 on the standard plane is located between the orthographic projections of the two second gas channels 201 on the standard plane, and the distance from the two is equal, that is, the three orthographic projections are arranged at equal intervals.

[0062] During inflation, gas first enters the first sub-air bag 101 through the air inlet 3 to inflate it, opening the first sub-air bag 101. Gas gradually fills the first sub-air bag 101 and rushes through the first gas channel 201 to the elastic surface layer above the second sub-air bag 102. Under the impact of the airflow, the second sub-air bag 102 is opened and injected with air. Then, the airflow flows through the two second gas channels 202 to the elastic surface layer above the third sub-air bag 103, opening the third sub-air bag 103 and gradually inflating it. Finally, the airflow flows through the third gas channel 203 to the elastic surface layer above the fourth sub-air bag 104, opening the fourth sub-air bag 104 and gradually inflating it. This allows the first sub-airbag 101, the second sub-airbag 102, the third sub-airbag 103, and the fourth sub-airbag 104 to open sequentially, avoiding the sudden expansion of the intermediate sub-airbags (the second sub-airbag 102 and the third sub-airbag 103) when they open under compression, thus preventing the air burst noise generated by the rapid inflation of the airbags and reducing abnormal noise.

[0063] Example 6

[0064] Please refer to Figure 11 This embodiment provides a car seat 4, which includes at least one massage airbag 1 as described in any of Embodiments 1-5. The massage airbag 1 has a one-dimensional opening / expansion / retraction stroke. The car seat 4 also includes a seat frame, seat foam 6, seat cover 12, air tube assembly 11, air source 8, and control valve 7. The massage airbag 1 is disposed between the seat cover 12 and the seat foam 6, or between the seat foam 6 and the seat frame. The air inlet 3 of the massage airbag 1 is connected to the air source 8 and the control valve 7 through the air tube assembly 11.

[0065] In this embodiment, the massage air bag 1 is disposed between the seat cover 12 and the seat foam 6. The air inlet of the massage air bag 1 is connected to the air source 8 and the control valve 7 through the air pipe assembly 11. The control valve 7 is also connected to the control switch 10 through the wiring harness 9. The massage air bag 1 can achieve a large stroke pressure action in the vertical direction relative to the seat surface of the seat 4.

[0066] During use, control valve 7 controls air source 8 to inflate massage airbag 1. Once the sub-airbag of massage airbag 1 is fully inflated, it will press against the occupant's body in the seat, thus activating the pressure massage effect. Then, control valve 7 controls air source 8 to deflate massage airbag 1. After the sub-airbag of massage airbag 1 is deflated, it returns to a flattened state, waiting for the next inflation and deflation cycle. Several massage airbags 1 are rotated and expanded under the action of control valve 7 and control switch 10, realizing pneumatic massage of the occupant's body in the vehicle seat. Figure 13 This is a diagram showing the massage airbags inside a car seat back in an uninflated state. Figure 14 This is a diagram showing the massage airbags inside a car seat back in an inflated state.

[0067] Preferred, such as Figure 12 As shown, a vibrator 5 can also be installed inside the seat to work in conjunction with the massage air bag 1 to massage the occupant's body.

[0068] It should be noted that the car seat 4 includes a seat cushion 401 and a backrest 402, and the massage airbag 1 can be disposed in the seat cushion 401 or in the backrest 402.

[0069] In addition to being used for seat massage functions, the massage airbag 1 can also be used in the airbag structure for seat lumbar support, side wing support, leg support, and head support.

[0070] This invention changes the air passage structure inside the seat top pressure massage airbag of the past multi-layer sub-airbag body. Through the tortuous airflow path between the sub-airbag bodies, the airbag body is inflated and opened sequentially during inflation, avoiding the instantaneous air burst phenomenon of the middle airbag.

[0071] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A massaging air bag, characterized by, It includes at least three sub-airbags stacked along a first direction; each sub-airbag located at an end has at least one air port for exchanging gas with the outside; at least one gas channel connects two adjacent sub-airbags; each sub-airbag has a first side and a second side distributed along the first direction; the gas channels connecting the first side and the second side of the same sub-airbag do not overlap in their orthographic projections onto a standard plane; the first direction is perpendicular to the standard plane. The sub-airbag body includes two elastic surface layers; ventilation holes are opened at corresponding positions on the elastic surface layers of two adjacent sub-airbag bodies that are close to each other; the elastic surface layers around the two ventilation holes at corresponding positions are fused together to form the gas channel.

2. The massaging air bag according to claim 1, wherein On the same sub-gas bag body, the number of gas channels communicating with the first side and the number of gas channels communicating with the second side are the same.

3. The massage air bag according to claim 2, characterized in that, It includes at least four sub-gas bags distributed along the first direction; the gas channels connected to two sub-gas bags on opposite sides of each other are completely overlapped in orthographic projection on the standard plane.

4. The massaging air pocket of claim 1, wherein, On the same sub-gas bag body, the number of gas channels communicating with the first side and the number of gas channels communicating with the second side are different.

5. The massaging air pocket according to claim 4, wherein, It includes at least four sub-gas bags distributed along the first direction; the gas channels connected to two sub-gas bags on opposite sides of each other are completely overlapped in orthographic projection on the standard plane.

6. The massaging air pocket according to claim 2 or 4, wherein, The gas channels connected to the same gas channel on opposite sides of the gas bags may or may not overlap in their orthographic projections on the standard plane.

7. The massaging air pocket according to claim 4, wherein, The distance between the orthographic projections of the gas channels connected on the first and second sides of the same sub-gas bag body on the standard plane is equal.

8. The massaging air pocket of claim 1, wherein, The edges of the two elastic surface layers are welded together.

9. The massaging air pocket of claim 1, wherein, The elastic surface layer surrounding the gas channel has an uneven structure.

10. An automobile seat characterized by comprising: The device includes at least one massage airbag as described in any one of claims 1-9, and further includes a seat frame, seat foam, seat cover, air tube assembly, air source, and control valve; the massage airbag is disposed between the seat cover and the seat foam, or between the seat foam and the seat frame; the air inlet of the massage airbag is connected to the air source and the control valve through the air tube assembly.

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