Airbag, seat comfort system and seat

Abstract

The application discloses a gas bag, a seat comfort system and a seat. The gas bag comprises a gas bag body for filling gas; a light source assembly for emitting light; and a sensing assembly for receiving the light emitted by the light source assembly and converting the light into a corresponding electrical signal. The light source assembly and the sensing assembly are oppositely arranged on the gas bag body along a main deformation direction of the gas bag body. Since the deformation of the gas bag body affects the distance between the light source assembly and the sensing assembly, different distances between the light source assembly and the sensing assembly generate different electrical signals. Therefore, the height change or the inflation degree of the gas bag body along the main deformation direction can be known according to the electrical signal generated by the sensing assembly, and the inflation amount of the gas bag is feedback adjusted.

Description

Technical Field

[0001] This invention relates to the field of seat technology, and in particular to an airbag, a seat comfort system, and a seat. Background Technology

[0002] When people drive or ride in a car for a long time, maintaining a fixed posture and concentrating their attention often leads to stiffness and fatigue, especially in the lower back that supports the limbs and torso.

[0003] In existing technologies, airbags are typically installed in the seat to support the lumbar region and / or back of the driver or passenger. They can also be placed inside the car seat cushion. By inflating the airbag, it supports the lumbar region, back, or buttocks of the driver or passenger, reducing fatigue. The amount of air inflated significantly affects the shape of the airbag, which in turn significantly affects the driver's or passenger's posture. However, current technologies struggle to accurately measure the deformation of the airbag, making precise control and adjustment of the inflation volume difficult. Summary of the Invention

[0004] This invention provides an airbag, a seat comfort system, and a seat, aiming to solve the problem that current technologies struggle to accurately measure the deformation of airbags, leading to difficulties in precisely controlling and adjusting the inflation volume.

[0005] To solve the above-mentioned technical problems, one technical solution adopted by the present invention is: to provide an air bag, comprising:

[0006] The gas bag body is used to fill the gas.

[0007] A light source component used to emit light;

[0008] A sensing component is used to receive light emitted by the light source component and convert it into a corresponding electrical signal;

[0009] The light source assembly and the sensing assembly are disposed opposite to each other on the air bag body along the main deformation direction of the air bag body.

[0010] Optionally, the light source assembly includes a light-emitting element and a first wire, the first wire being connected to the light-emitting element; the sensing assembly includes a photoelectric sensor and a second wire connected to the photoelectric sensor, the light-emitting element and the photoelectric sensor being mounted on the outer surface of the air bag body.

[0011] Optionally, the light source assembly includes a light-emitting element and a first wire, one end of which is sealed through the air bag body and electrically connected to the light-emitting element; the sensing assembly includes a photoelectric sensor and a second wire, one end of which is sealed through the air bag body and electrically connected to the photoelectric sensor, and both the light-emitting element and the photoelectric sensor are mounted on the inner surface of the air bag body.

[0012] Optionally, both the first and second conductors are arranged in a wavy or spiral shape to give both conductors elasticity.

[0013] Optionally, the air bag further includes a first mounting component, which covers the light-emitting element and is connected to the air bag body to fix the light-emitting element. The first mounting component is provided with a first wiring groove, one end of which is disposed corresponding to the light-emitting element. A first wire is housed in the first wiring groove, one end of which is electrically connected to the light-emitting element. The first wire is retractable.

[0014] Optionally, the air bag further includes a second mounting component, which covers the photoelectric sensor and is connected to the air bag body to fix the photoelectric sensor; the second mounting component is provided with a second wiring groove, one end of which is disposed corresponding to the photoelectric sensor; the second wire is housed in the second wiring groove, one end of which is electrically connected to the photoelectric sensor, and the second wire is retractable.

[0015] Optionally, the light-emitting element is a light-emitting diode, and the photoelectric sensor is a photoresistor.

[0016] The present invention also provides a seat comfort system, comprising:

[0017] The aforementioned air bags;

[0018] The air tube is connected at one end to the air bag body;

[0019] An air pump is connected to the other end of the air tube, and the air pump is used to inflate or de-inflate the air bag body through the air tube.

[0020] A valve assembly is disposed on the air pipe, and the valve assembly is used to control the opening and closing of the air passage between the air pump and the air bag;

[0021] A controller is connected to both the sensing component and the valve assembly, and the controller is used to control the opening and closing of the valve assembly.

[0022] Optionally, at least two air bags are provided, and the two air bags overlap at least partially when neither is inflated; the light emitted by the light source component of each air bag is in a different wavelength, and the light received by the sensing component of each air bag is in a different wavelength, so that the light emitted by the light source component of one air bag can only be received by the sensing component corresponding to the same air bag.

[0023] The present invention also provides a seat, including the aforementioned seat comfort system.

[0024] The beneficial effects of this invention are as follows: Unlike the prior art, the airbag in this invention includes an airbag body, a light source assembly, and a sensing assembly. The airbag body is used to fill with gas. After being filled with air, the airbag body becomes relatively inflated, causing a change in its shape. The light source assembly is located on one side of the main deformation direction of the airbag body and is used to emit light signals. The sensing assembly is located on the other side of the main deformation direction of the airbag body, and is positioned opposite to the light source assembly. The sensing assembly can receive the light emitted by the light source assembly. Since the deformation of the airbag body affects the distance between the light source assembly and the sensing assembly, different distances between the light source assembly and the sensing assembly will generate different electrical signals. Therefore, based on the electrical signals generated by the sensing assembly, the height change or degree of inflation of the airbag body along the main deformation direction can be determined, thereby allowing for feedback adjustment of the airbag's inflation volume. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in specific embodiments of the present invention or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0026] Figure 1 This is a schematic diagram of the structure of an air bag in one embodiment of the present invention, wherein the air bag is in an inflated state;

[0027] Figure 2 This is a front view of the air bag in one embodiment of the present invention;

[0028] Figure 3 This is a side view of the air bag in one embodiment of the present invention;

[0029] Figure 4 yes Figure 3 An enlarged schematic diagram of part A in the middle;

[0030] Figure 5 This is a partial structural schematic diagram of the air bag in one embodiment of the present invention;

[0031] Figure 6 This is a partial structural schematic diagram of the air bag in one embodiment of the present invention;

[0032] Figure 7 This is a schematic diagram of the air circuit connection of the seat comfort system;

[0033] Figure 8 This is a circuit connection diagram of the seat comfort system.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100. Airbag; 1. Airbag body; 11. First bag body; 12. Second bag body; 2. Light source assembly; 21. Light-emitting element; 22. First wire; 3. Sensing assembly; 31. Photoelectric sensor; 32. Second wire; 4. First mounting component; 41. First mounting slot; 5. Second mounting component; 51. Second mounting slot; 1000. Seat comfort system; 200. Air hose; 300. Air pump; 400. Valve assembly; 500. Controller; Detailed Implementation

[0036] To facilitate understanding of the present invention, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. 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 one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0037] 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 invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0038] Please see Figure 1 and Figure 2This invention provides an air bag 100, which includes an air bag body 1, a light source assembly 2, and a sensing assembly 3. The air bag body 1 is used to fill with gas. After being filled with air, the air bag body 1 becomes relatively inflated, causing a change in its shape. The light source assembly 2 is located on one side of the main deformation direction of the air bag body 1 and is used to emit light signals. The sensing assembly 3 is located on the other side of the main deformation direction of the air bag body 1 and is positioned opposite to the light source assembly 2. The sensing assembly 3 can receive the light emitted by the light source assembly 2. Since the deformation of the air bag body 1 affects the distance between the light source assembly 2 and the sensing assembly 3, different distances between the light source assembly 2 and the sensing assembly 3 will generate different electrical signals. Therefore, the main deformation or degree of inflation of the air bag body 1 can be determined based on the electrical signals generated by the sensing assembly 3.

[0039] For the airbag body 1 mentioned above, please refer to Figure 1 The airbag body 1 includes a first bag body 11 and a second bag body 12. The edges of the first bag body 11 and the edges of the second bag body 12 are connected to form the airbag body 1; alternatively, the airbag body itself is integrally formed, with its opposite sides along the main deformation direction defined as the first bag body 11 and the second bag body 12, respectively. When the airbag body 1 is not inflated, the first bag body 11 and the second bag body 12 are attached together or close to each other. When the airbag body 1 is inflated, at least one of the first bag body 11 and the second bag body 12 deforms in a direction away from the other and becomes an arc surface. When the airbag is not inflated, the vertical ( Figure 1 The direction shown by the X-axis is the main deformation direction of the air bag body 1.

[0040] The airbag body 1 may also have only one surface, such as a sphere, with its main deformation direction being the opposite sides of the sphere. The airbag body 1 may also have two or more surfaces, such as a cylindrical airbag body 1, a cubic airbag body 1, or a cuboid airbag body 1. That is, the shape of the airbag body 1 is not limited to the shape in this embodiment; the shape of the airbag body 1 may also be the aforementioned spherical, cylindrical, cuboid, cubic, or other irregular shapes.

[0041] Regarding the aforementioned main deformation direction, it can be understood that the main deformation direction can be the direction in which the deformation of the air bag body 1 is the largest after inflation, or it can be the direction in which the deformation of the air bag body 1 is relatively large after inflation.

[0042] Please see Figure 2 and Figure 5 ,in, Figure 5The first mounting component 4 is concealed within. For the aforementioned light source assembly 2, the light source assembly 2 includes a light-emitting element 21 and a first wire 22. The light-emitting element 21 emits light when energized and is disposed on the outer surface of the airbag body 1. The first wire 22 is disposed on the outer surface of the airbag body 1, with one end electrically connected to the light-emitting element 21 and the other end electrically connected to an external power source to provide power to the light-emitting element 21. Alternatively, the light-emitting element 21 is disposed on the inner surface of the airbag body 1. The first wire 22 is sealed and passes through the airbag body 1, with one end located inside the airbag body 1 and electrically connected to the light-emitting element 21, and the other end located outside the airbag body 1 and electrically connected to an external power source to provide power to the light-emitting element 21.

[0043] The light-emitting element 21 includes, but is not limited to, a light-emitting diode (LED), which is a commonly used light-emitting device. Of course, light-emitting diodes can also be used for other light-emitting objects.

[0044] Please see Figure 3 and Figure 6 ,in, Figure 6 The second mounting component 5 is concealed within. The sensing component 3 includes a photoelectric sensor 31 and a second wire 32. The photoelectric sensor 31 receives light and generates an electrical signal. The photoelectric sensor 31 is disposed on the outer surface of the airbag body 1. The photoelectric sensor 31 and the light-emitting element 21 can be positioned facing each other or tilted relative to each other. One end of the second wire 32 is electrically connected to the photoelectric sensor 31, and the other end is electrically connected to an external power source to provide power to the photoelectric sensor 31. Alternatively, the photoelectric sensor 31 is disposed on the inner surface of the airbag body 1. The photoelectric sensor 31 and the light-emitting element 21 can be positioned facing each other or tilted relative to each other. The second wire 32 is sealed and passes through the airbag body 1. One end of the second wire 32 is located inside the airbag body 1 and electrically connected to the photoelectric sensor 31, while the other end is located outside the airbag body 1 and electrically connected to an external power source to provide power to the photoelectric sensor 31.

[0045] The photoelectric sensor 31 is a photoresistor. Therefore, when the photoresistor and the light-emitting element 21 are at different distances, the photoresistor will generate electrical signals of different magnitudes. These signals can characterize the distance between the photoresistor and the light-emitting element 21. The distance between the photoresistor and the light-emitting element 21 can reflect the magnitude of the main deformation of the air bag body 1.

[0046] Please refer to it again. Figure 1 Since both the light-emitting element 21 and the photoelectric sensor 31 can be disposed on the inner and outer surfaces of the air bag body 1, the placement positions of the light-emitting element 21 and the photoelectric sensor 31 include the following four cases:

[0047] 1. The light-emitting element 21 is disposed on the outer surface of the first bag body 11 (or the second bag body 12), and correspondingly, the photoelectric sensor 31 is disposed on the outer surface of the second bag body 12 (or the first bag body 11).

[0048] 2. The light-emitting element 21 is disposed on the inner surface of the first bag body 11 (or the second bag body 12), and correspondingly, the photoelectric sensor 31 is disposed on the inner surface of the second bag body 12 (or the first bag body 11).

[0049] Third, the light-emitting element 21 is disposed on the outer surface of the first bag body 11 (or the second bag body 12), and correspondingly, the photoelectric sensor 31 is disposed on the inner surface of the second bag body 12 (or the first bag body 11).

[0050] Fourth, the light-emitting element 21 is disposed on the inner surface of the first bag body 11 (or the second bag body 12), and correspondingly, the photoelectric sensor 31 is disposed on the outer surface of the second bag body 12 (or the first bag body 11).

[0051] The first wire 22 is arranged in a wavy or spiral shape. Therefore, when the first bag body 11 or the second bag body 12 is deformed, the first wire 22 arranged on the first bag body 11 or the second bag body 12 can also be deformed accordingly. This can prevent the first wire 22 from dragging the light-emitting element 21 and causing the electrical connection between the first wire 22 and the light-emitting element 21 to fail, so that the first wire 22 can continuously maintain the electrical connection with the light-emitting element 21.

[0052] Please see Figure 5 The first conductor 22 can be wavy or spiral in shape by artificial bending, for example, by bending it during wiring to make it wavy or spiral. The first conductor 22 can also be wavy or spiral in shape by using a high-elasticity spiral cable, also known as a spring cable. A high-elasticity spiral cable is a type of wire with extremely high elasticity; it can stretch and bend as needed, and returns to its original shape after the external force is removed. High-elasticity spiral cables have excellent anti-drag and anti-collapse properties.

[0053] Please see Figure 6 The second wire 32 is arranged in a wavy or spiral shape. Therefore, when the first bag 11 or the second bag 12 is deformed, the second wire 32 arranged on the first bag 11 or the second bag 12 can also be deformed accordingly. This can prevent the second wire 32 from dragging the photoelectric sensor 31 and causing the electrical connection between the second wire 32 and the photoelectric sensor 31 to fail, so that the second wire 32 can maintain a continuous electrical connection with the photoelectric sensor 31.

[0054] The second conductor 32 can be arranged in a wavy or spiral shape by artificial bending, for example, by bending the second conductor 32 into a wavy or spiral shape during wiring. The second conductor 32 can also be arranged in a wavy or spiral shape by using a high-elasticity spiral cable, also known as a spring cable. A high-elasticity spiral cable is a type of wire with extremely high elasticity; it can stretch and bend as needed, and returns to its original shape after the external force is removed. High-elasticity spiral cables have excellent anti-drag and anti-collapse properties.

[0055] Please see Figure 2 and Figure 3 The air bag 100 also includes a first mounting member 4, which is generally sheet-shaped. The first mounting member 4 is positioned corresponding to the light-emitting element 21 and is located on the side of the light-emitting element 21 away from the air bag body 1. The first mounting member 4 covers the light-emitting element 21 and is connected to the air bag body 1 to fix the light-emitting element 21, thereby preventing changes in the position of the light-emitting element 21. It also seals the light-emitting element 21 to prevent it from being interfered with by external moisture and impurities.

[0056] Please see Figure 3 and Figure 4 The first mounting component 4 is provided with a first wiring groove 41. One end of the first wiring groove 41 is positioned corresponding to the light-emitting component 21, and the other end of the first wiring groove 41 extends toward the edge of the air bag body 1. The first wire 22 is housed in the first wiring groove 41 to limit its movement. The opening of the first wiring groove 41 faces the air bag body 1; therefore, when the first mounting component 4 is connected to the air bag body 1, the opening of the first wiring groove 41 is blocked.

[0057] The connection methods between the first mounting component 4 and the air bag body 1 include, but are not limited to, embedding, snapping, snapping, and bonding.

[0058] Please see Figure 3 The air bag 100 also includes a second mounting member 5, which is generally sheet-shaped. The second mounting member 5 is positioned corresponding to the photoelectric sensor 31 and is located on the side of the photoelectric sensor 31 away from the air bag body 1. The second mounting member 5 covers the photoelectric sensor 31 and is connected to the air bag body 1 to fix the photoelectric sensor 31, which can prevent the position of the light-emitting element 21 from changing. It can also seal the photoelectric sensor 31 to prevent the photoelectric sensor 31 from being interfered with by external moisture and impurities.

[0059] Please see Figure 4The second mounting component 5 is provided with a second wiring groove 51. Two ends of the second wiring groove 51 are positioned corresponding to the photoelectric sensor 31, and the other two ends of the second wiring groove 51 extend toward the edge of the air bag body 1. The second wire 32 is housed in the second wiring groove 51 to limit its movement. The opening of the second wiring groove 51 faces the air bag body 1; therefore, when the second mounting component 5 is connected to the air bag body 1, the opening of the second wiring groove 51 is blocked.

[0060] The connection methods between the second mounting component 5 and the air bag body 1 include, but are not limited to, embedding, snapping, clipping, and bonding.

[0061] In summary, the airbag 100 includes an airbag body 1, a light source assembly 2, and a sensing assembly 3. The airbag body 1 is used to fill with gas. After being filled with air, the airbag body 1 becomes relatively inflated, causing a change in its shape. The light source assembly 2 is located on one side of the main deformation direction of the airbag body 1 and is used to emit light signals. The sensing assembly 3 is located on the other side of the main deformation direction of the airbag body 1. The sensing assembly 3 is positioned opposite to the light source assembly 2 and can receive the light emitted by the light source assembly 2. Since the deformation of the airbag body 1 affects the distance between the light source assembly 2 and the sensing assembly 3, different distances between the light source assembly 2 and the sensing assembly 3 will generate different electrical signals. Therefore, based on the electrical signals generated by the sensing assembly 3, the main deformation or degree of inflation of the airbag body 1 can be determined, thereby allowing for feedback adjustment of the inflation amount of the airbag 100.

[0062] Please see Figure 7 The present invention also provides a seat comfort system 1000, which includes an airbag 100, an air hose 200, an air pump 300, a valve assembly 400, and a controller 500. The structure of the airbag 100 is as described above, and its specific structure will not be described in detail here. Taking the airbag 100 located in the seat back as an example, the airbag body 1 of the airbag 100 is positioned to support the waist and / or back of the driver / passenger. When the airbag body 1 is inflated, it deforms, expanding along the main deformation direction (i.e., the front-to-back direction of the vehicle) to support the passenger's waist and / or back, thereby reducing driver / passenger fatigue. When the airbag 100 is located within the seat cushion, the main deformation direction of the airbag body 1 is vertical, supporting the passenger's buttocks and thighs.

[0063] Of course, the airbag body 1 can also be activated after a preset time interval. For example, it can be inflated starting in the second hour after the start of the trip. The airbag 100 compresses the waist and / or back of the driver and passengers, thereby actively changing the driver and passengers' sitting posture, which can prevent the driver and passengers from maintaining a fixed sitting posture for a long time and reduce the driver and passengers' fatigue.

[0064] The air pump 300 is used to deliver gas into the air tube 200. The air tube 200 is used to deliver gas, and one end of the air tube 200 is connected to the air bag 100, allowing gas to enter the air bag body 1 and cause the air bag body 1 to deform. The other end of the air tube 200 is connected to the air pump 300 to form an air passage.

[0065] A valve assembly 400 is disposed on the air pipe 200 and is located between the air pump 300 and the air bag 100. The valve assembly 400 is used to control the opening and closing of the air passage between the air bag 100 and the air pump 300. When the valve assembly 400 is in the open state, the air pump 300 can deliver gas to the air bag 100 through the air pipe 200. When the valve assembly 400 is in the closed state, the air pump 300 cannot deliver gas to the air bag 100. The valve assembly 400 includes, but is not limited to, a solenoid valve.

[0066] Please see Figure 8 The controller 500 is connected to the sensing component 3 to control the operating state of the sensing component 3 and acquire the electrical signals acquired by the sensing component 3. Specifically, the controller 500 is electrically connected to the photoelectric sensor 31 via the second wire 32 to acquire the electrical signals generated by the photoelectric sensor 31. The controller 500 is also electrically connected to the valve assembly 400 to control the opening and closing of the valve assembly 400, thereby controlling the air intake of the air bag body 1 and the deformation of the air bag body 1. The controller 500 can also be electrically connected to the air pump 300 to control the operating state of the air pump 300; when the valve assembly 400 is in the closed state, the air pump 300 is turned off.

[0067] The controller 500 inflates the air bag body 1 of the air bag 100 by controlling the working state of the air pump 300, thereby controlling the deformation of the air bag body 1. The specific form of the controller 500 includes, but is not limited to, MCU (Microcontroller Unit) and PLC (Programmable Logic Controller).

[0068] At least two airbags 100 are provided, arranged opposite each other. When neither airbag body 1 of the two airbags 100 is inflated, the airbag bodies 1 of the two airbags 100 at least partially overlap. The two airbags 100 can be simultaneously positioned to support the waist or back of the driver or passenger, thereby providing better support for the waist or back of the driver or passenger. The light source components 2 of each airbag 100 emit light of different wavelengths, and correspondingly, the sensing components 3 of each airbag 100 can receive light of different wavelengths, so that the light emitted by the light source component 2 of the same airbag 100 can only be received by the sensing component 3 corresponding to the same airbag 100, thereby avoiding mutual interference between the two airbags 100.

[0069] The present invention also provides a seat (not shown), which includes the aforementioned seat comfort system 1000, and the seat can reduce the fatigue of drivers and passengers.

[0070] It should be noted that while the preferred embodiments of the present invention are given in the specification and accompanying drawings, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of the present invention; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of the present invention. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of the present invention specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An air bag, characterized in that, include: The gas bag body is used to fill the gas. A light source component used to emit light; A sensing component is used to receive light emitted by the light source component and convert it into a corresponding electrical signal; The light source component and the sensing component are disposed opposite to each other on the air bag body along the main deformation direction of the air bag body. The light source component is used to emit light signals, and the sensing component receives the light emitted by the light source component and generates electrical signals. The deformation of the air bag body affects the distance between the light source component and the sensing component. Different distances between the light source component and the sensing component will generate different electrical signals. The electrical signals are used to characterize the main deformation or inflation degree of the air bag body.

2. The air bag according to claim 1, characterized in that, The light source assembly includes a light-emitting element and a first wire, the first wire being connected to the light-emitting element; the sensing assembly includes a photoelectric sensor and a second wire connected to the photoelectric sensor, the light-emitting element and the photoelectric sensor being mounted on the outer surface of the air bag body.

3. The air bag according to claim 1, characterized in that, The light source assembly includes a light-emitting element and a first wire, one end of which is sealed through the air bag body and electrically connected to the light-emitting element; the sensing assembly includes a photoelectric sensor and a second wire, one end of which is sealed through the air bag body and electrically connected to the photoelectric sensor; both the light-emitting element and the photoelectric sensor are mounted on the inner surface of the air bag body.

4. The air bag according to claim 2 or 3, characterized in that, Both the first and second conductors are arranged in a wavy or spiral shape to give them both elasticity.

5. The air bag according to claim 2 or 3, characterized in that, The air bag further includes a first mounting component, which covers the light-emitting element and is connected to the air bag body to fix the light-emitting element. The first mounting component is provided with a first wiring groove, one end of which is disposed corresponding to the light-emitting element. The first wire is housed in the first wiring groove, one end of which is electrically connected to the light-emitting element. The first wire is retractable.

6. The air bag according to claim 5, characterized in that, The air bag also includes a second mounting component, which covers the photoelectric sensor and is connected to the air bag body to fix the photoelectric sensor; the second mounting component is provided with a second wiring groove, one end of which is set corresponding to the photoelectric sensor; the second wire is housed in the second wiring groove, one end of which is electrically connected to the photoelectric sensor, and the second wire is retractable.

7. The air bag according to claim 2 or 3, characterized in that, The light-emitting element is a light-emitting diode, and the photoelectric sensor is a photoresistor.

8. A seat comfort system, characterized in that, include: The air bag as described in any one of claims 1-7; The air tube is connected at one end to the air bag body; An air pump is connected to the other end of the air tube, and the air pump is used to inflate or de-inflate the air bag body through the air tube. A valve assembly is disposed on the air pipe, and the valve assembly is used to control the opening and closing of the air passage between the air pump and the air bag; A controller is connected to both the sensing component and the valve assembly, and the controller is used to control the opening and closing of the valve assembly.

9. The seat comfort system according to claim 8, characterized in that, The air bags are provided in at least two form, and the two air bags overlap at least partially when neither is inflated; the light emitted by the light source component of each air bag is in a different wavelength, and the light received by the sensing component of each air bag is in a different wavelength, so that the light emitted by the light source component of one air bag can only be received by the sensing component corresponding to the same air bag.

10. A type of seat, characterized in that, include: The seat comfort system as described in claim 8 or 9.

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