Seat back assembly

Abstract

The present disclosure relates to a seat back panel assembly, wherein the seat back panel assembly comprises: a seat back panel comprising a heating pad; a sensing assembly configured to detect whether the seat back panel is in a first use scenario or in a third use scenario, wherein in the first use scenario the seat back panel is attached to a seat backrest and the seat backrest is in a use position, and in the third use scenario the seat back panel is attached to the seat backrest and the seat backrest is in a folded position; and a controller communicatively connected with the sensing assembly and communicatively connected with the heating pad of the seat back panel, the controller sends a signal to the heating pad according to a corresponding sensing signal from the sensing assembly to cause the heating pad to output a corresponding heating power. Thus, temperature management of the seat back panel for multi-scenario switching can be achieved to provide a corresponding warming effect for rear passengers corresponding to the scenario.

Description

Technical Field

[0001] This disclosure relates to the field of vehicles, and more specifically to a seat back panel assembly. Background Technology

[0002] Currently, seat backrests on the market are mostly designed for strength and decoration, with a few integrating features such as small tables and ambient lighting. There are still few functional designs for rear passengers, especially in terms of temperature management, where seat backrests are used less.

[0003] In existing technologies, seat back panels only consider one scenario and are not specifically designed for switching between multiple scenarios. Utility Model Content

[0004] The objective of this disclosure is to provide a seat back panel assembly that enables temperature management of the seat back panel for various scenarios, thereby providing heating for rear passengers in accordance with the scenario.

[0005] Therefore, this disclosure proposes a seat back panel assembly, characterized in that the seat back panel assembly comprises: a seat back panel configured to provide heating for rear passengers, the seat back panel including a back panel frame, a heating pad, and a back panel decorative layer, wherein the back panel frame is mounted on the backrest frame of the seat back, the heating pad includes a heating layer to generate heat and transfer heat outward, and the back panel decorative layer serves as an exterior decorative element; a sensing component configured to detect whether the seat back panel is in a first usage scenario or a third usage scenario, wherein in the first usage scenario the seat back panel is in contact with the seat back and the seat back is in a used position, and in the third usage scenario the seat back panel is in contact with the seat back and the seat back is in a folded position; and a controller, the controller being communicatively connected to the sensing component and communicatively connected to the heating pad of the seat back panel, the controller sending a signal to the heating pad based on a corresponding sensing signal from the sensing component to cause the heating pad to output a corresponding heating power.

[0006] The disclosed technical solution allows for temperature management of the seat backrest in at least two scenarios, namely a first usage scenario and a third usage scenario, to adapt to different usage scenarios and provide a richer user experience for rear passengers. Furthermore, this disclosure also provides a possibility for temperature management of the seat backrest in two scenarios, namely the first usage scenario and the third usage scenario, from the perspective of sensing components and a controller.

[0007] In some embodiments, the controller can cause the heating pad to output corresponding heating power when the sensing component detects that the seat back panel is in a first usage scenario, so that the seat back panel provides a first temperature. Furthermore, when the sensing component detects that the seat back panel is in a third usage scenario, the controller can cause the heating pad to output corresponding heating power, so that the seat back panel provides a second temperature for rear passengers wearing shoes and / or a third temperature for rear passengers taking off shoes. Thus, specific and feasible technical solutions are provided for temperature management of the seat back panel based on the first temperature, second temperature, and / or third temperature and the corresponding usage scenario.

[0008] In some embodiments, the seat back panel is foldable, allowing it to unfold and the seat back to be in the use position in a second usage scenario. The sensing component is further configured to detect whether the seat back panel is in the second usage scenario. The controller can cause the heating pad to output corresponding heating power when the sensing component detects that the seat back panel is in the second usage scenario, thereby providing a second temperature for rear passengers wearing shoes and / or a third temperature for rear passengers without shoes. Thus, in addition to the first and third usage scenarios, temperature management is also implemented for the second usage scenario to accommodate more usage scenarios and provide a richer user experience for rear passengers.

[0009] In some embodiments, the sensing component is configured to detect whether the seat backrest is being touched. In a first usage scenario, the controller can control the heating pad to adjust the heating temperature to a fourth temperature when the sensing component detects contact with the seat backrest. This fourth temperature is a temperature value designed to prevent low-temperature burns to the human body. Therefore, in the first usage scenario, burns to rear passengers due to accidental contact can be avoided.

[0010] In some embodiments, the sensing component is configured to detect the distance between the rear passenger and the seat backrest. In a first usage scenario, the controller can control the heating pad to adjust the heating temperature to a fourth temperature—a temperature value designed to prevent low-temperature burns—when the sensing component detects that the distance between the rear passenger and the seat backrest is zero. And / or, in the first usage scenario, the controller adjusts the heating power of the heating pad based on the distance detected by the sensing component. This prevents rear passengers from being burned due to accidental contact in the first usage scenario. Furthermore, it also provides more intelligent distance-based temperature management in the first usage scenario.

[0011] In some implementations, in a first usage scenario, the controller reduces the heating power of the heating pad as the distance between the rear passenger and the seat back decreases, or increases the heating power of the heating pad as the distance between the rear passenger and the seat back increases.

[0012] In some embodiments, the sensing component includes a first angle sensor for detecting the tilt angle or tilt state of the seat back, the first angle sensor being disposed at the seat back adjuster.

[0013] In some embodiments, the sensing component includes a second angle sensor for detecting the tilt angle of the seat backrest, the second angle sensor being disposed at the tilt axis of the seat backrest.

[0014] In some embodiments, the sensing component includes a first sensing pad disposed in the seat back panel for detecting whether the seat back panel is being contacted.

[0015] In some embodiments, the sensing component includes a second sensing pad disposed in the seat back panel for detecting the distance between a rear passenger and the seat back panel.

[0016] In some embodiments, the sensing component is characterized by including or being configured as an image recognition-based visual sensor, which is arranged such that it can monitor the state of the seat back panel and seat backrest.

[0017] In some embodiments, the vision sensor is arranged in an area of ​​the vehicle interior space corresponding to the rear seats. This enables the vision sensor to make advantageous detection of the seat backrest.

[0018] In some embodiments, the vision sensor is arranged in the roof in an area corresponding to the rear seats. This allows for highly advantageous detection of the seat backrests by the vision sensor, as well as an advantageous arrangement of the vision sensor.

[0019] In some embodiments, the first temperature is between 60℃±5℃ and 70℃±5℃, while the second temperature is between 50℃±5℃ and 60℃±5℃ and / or the third temperature is between 40℃±5℃ and 50℃±5℃.

[0020] In some implementations, the controller controls or sets the heating power of the heating pad so that a specified temperature is output on the side of the seat back facing the rear passenger in the appropriate usage scenario. Attached Figure Description

[0021] Figure 1 This illustration shows a first use scenario of a seat back panel with a heating function according to the present disclosure.

[0022] Figure 2 This illustrates a second use scenario for a seat backrest assembly with a heating function according to the present disclosure.

[0023] Figure 3 This illustrates a third use scenario for a seat backrest assembly with a heating function according to the present disclosure.

[0024] Figure 4 This is a schematic exploded view of one embodiment of a heated seat back panel applicable to the first and third scenarios.

[0025] Figure 5 yes Figure 4 A schematic diagram of the layered structure of the seat back panel.

[0026] Figure 6 yes Figure 4 A schematic diagram of the heating pad structure.

[0027] Figure 7 Similar to Figure 5 This is a schematic diagram of the layered structure of another seat back panel.

[0028] Figure 8 Similar to Figure 5 This is a schematic diagram of the layered structure of another seat back panel.

[0029] Figure 9 Similar to Figure 5 This is a schematic diagram of the layered structure of another seat back panel.

[0030] Figure 10 This is a schematic block diagram of one embodiment of the seat back panel assembly according to the present disclosure.

[0031] Figure 11 This is a schematic diagram of one embodiment of a seat back panel assembly according to the present disclosure, wherein the sensing component includes or is configured as a vision sensor. Detailed Implementation

[0032] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0033] According to the seat back panel assembly 100 of this disclosure (see...) Figure 10 The seat backrest 1 is configured to provide heating, particularly for rear passengers 22, in low-temperature environments. The heating method of the seat backrest 1 varies depending on the usage scenario. The maximum heating temperature (saturation temperature) of the seat backrest 1 varies with whether or not a person is in contact with it (including the duration of contact). In addition to the seat backrest 1, the seat backrest assembly 100 also includes a sensing component 3 and a controller 4 (see [link to documentation]). Figure 10 The working principle and structure of the seat back panel 1 and the seat back A will be described first, and then the working mode of the sensing component 3 and the controller 4 will be described.

[0034] like Figure 1As shown, in the first usage scenario, the rear passenger 2 is in a normal sitting position, the seat back panel 1 is in contact with the seat back A, and there is a gap between the rear passenger 2 and the seat back panel 1. At this time, the temperature of the seat back panel 1 is set to the first temperature, and heat is provided to the rear passenger 2 through radiant heating.

[0035] like Figure 2 As shown, in the second usage scenario, the rear passenger 2 needs to use the footrest or relax with zero gravity and other various seat unfolding postures. The top of the seat back panel 1 gradually moves away from the seat back A, unfolds and tilts to form a footrest. That is, the seat back panel 1 flips backward with the lower end as the rotation axis to form a footrest. The rear passenger 2's feet are pressed against the footrest, and heat is provided to the rear passenger 2 through heat conduction. Figure 2 An embodiment of a seat back panel 1 rotatably mounted on a backrest frame A is shown, wherein when the seat back panel 1 is unfolded, the seat back panel 1 can form a footrest for a rear passenger 2 in order to provide heat to the rear passenger 2.

[0036] like Figure 3 As shown, in the third usage scenario, the seat back panel 1 is in contact with the seat back A. The rear passenger 2 also needs to use the footrest or relax with zero gravity and other seat unfolding postures. The seat back panel 1 is folded forward and flattened with the seat back A to form a footrest or resting surface. The rear passenger 2's feet are resting on the footrest or resting surface, and heat is provided to the rear passenger 2 through heat conduction.

[0037] In summary, unlike existing technologies that only provide heating for rear passengers 2 in one usage scenario, in this disclosure, the seat back panel 1 can provide different temperature management strategies for the three usage scenarios mentioned above, so as to provide rear passengers with a variety of suitable heating options.

[0038] In the second and third usage scenarios, considering both rear passengers using the footrests with and without shoes, the seat back panel 1 offers two temperature settings: a second temperature (for using with shoes) and a third temperature (for using without shoes). The first temperature is higher than the second temperature, and the second temperature is higher than the third temperature. Specifically, the first temperature ranges from 60℃±5℃ to 70℃±5℃, the second temperature ranges from 50℃±5℃ to 60℃±5℃, and the third temperature ranges from 40℃±5℃ to 50℃±5℃. The first, second, and third temperatures represent the optimal recommended ranges for human comfort. Multiple temperature adjustment modes can be provided based on heating material design or circuit design (NTC temperature control, touch-sensitive temperature control, etc.). Users can adjust the temperature within the recommended safe range to suit their individual preferences.

[0039] like Figure 4 and Figure 5As shown, the seat back A includes a backrest frame A1 and a back panel frame A2 and a backrest decorative layer A3 covering the backrest frame A1. According to this disclosure, the heated seat back 1 suitable for first and third usage scenarios is a cover using a flexible material as the decorative layer, including a back panel frame (i.e., footrest frame) 11, a heat insulation layer 12, a heating pad 13, and a backrest decorative layer (i.e., footrest decorative layer) 14. It is integrally installed on the side of the backrest decorative layer A3 closest to the passenger. The back panel frame 11 is fixedly mounted on the backrest frame A1. The heating pad 13 generates heat and transfers it outwards. The heat insulation layer 12 is disposed between the back panel frame 11 and the heating pad 13 to prevent heat transfer to the back panel frame 11, especially to the seat back A. The backrest decorative layer 14 covers the back panel frame 11, the heat insulation layer 12, and the heating pad 13, thereby improving the appearance of the seat back 1. In some embodiments, the backrest frame A1 is a metal frame, and the back panel frame 11 is a plastic component. In some embodiments, the plastic used for the plastic part can be a polymer material such as TPE, PP, ABS, PA, PE, or PC. Using these plastic materials achieves both sufficient heat resistance and sufficient strength.

[0040] like Figure 6 As shown, the heating pad 13 includes a heating layer 131, an electrode layer 132, and a protective layer 133. The heating layer 131 and the electrode layer 132 are sandwiched between two protective layers 133, with the heating layer 131 and the electrode layer 132 in contact at the edge of the heating area. The heating layer 131 is a graphene-containing thermal radiation heating material with good far-infrared emission characteristics. The electrode layer 132 can be a metal wire, silver paste, or copper foil. The protective layer 133 can be a polymer such as PI or PU, or it can be a fabric. Of course, other materials that are beneficial for heating can also be used besides graphene.

[0041] With the backrest frame 11 (fully) fixedly mounted on the backrest frame A1, the seat backrest 1 can be used in a first usage scenario and a third usage scenario. In the first usage scenario, the seat backrest 1 provides a first temperature, while in the third usage scenario, the seat backrest 1 provides a second temperature and / or a third temperature. With the backrest frame 11 rotatably mounted on the backrest frame A1, the seat backrest 1 can be used in a first usage scenario, a second usage scenario, and a third usage scenario. In the first usage scenario, the seat backrest 1 provides a first temperature, while in the second and third usage scenarios, the seat backrest 1 provides a second temperature and / or a third temperature. Therefore, unlike the prior art, in this disclosure, the seat backrest 1 can provide different temperatures specific to each scenario for at least two different scenarios.

[0042] When the back panel frame 11 is (fully) fixedly installed on the backrest frame A1, the back panel decorative layer 14 can partially cover the back panel frame 11, that is, cover the edge of the back panel frame 11. When the back panel frame 11 is rotatably installed on the backrest frame A1, the back panel decorative layer 14 can completely cover the back panel frame 11.

[0043] like Figure 7 As shown, the heat insulation layer 12 of the seat back panel 1 can be omitted.

[0044] like Figure 8 As shown, the seat backrest 1 also includes a sensing pad 15 disposed between the heating pad 13 and the backrest trim layer 14. The sensing pad 15 is used to detect whether the seat backrest 1 is being touched and / or to control the temperature adjustment of the heating pad 13 to prevent burns or provide a more comfortable heating temperature for rear passengers. A contact sensor, such as a piezoelectric sensor, for detecting whether the seat backrest 1 is being touched may be arranged in the sensing pad 15. Alternatively or additionally, a proximity sensor, such as a self-capacitance sensor, may be arranged in the sensing pad 15. The sensing pad 15 is configured to adjust the temperature based on the distance between the seat backrest 1 and the human body.

[0045] like Figure 9 As shown, the heating pad 13 of the seat back panel 1 can integrate sensing functionality, meaning the heating layer and sensing layer are configured as a single molded pad. In other words, the heating pad 13 is a dual-purpose functional diaphragm with integrated sensing capabilities. Specifically, as... Figure 6 As shown, the temperature sensor NTC 134 is fixedly mounted on the protective layer 133. The duty cycle output of the voltage is controlled by an electronic module, enabling contact sensing and heating functions on a single diaphragm.

[0046] Obviously, the layered arrangement of the heating pad 13, as well as the assembly process between the wiring harness, temperature sensor, and other electronic components and the plastic parts of the seat back panel, can be adjusted as needed. The layered structure of the seat back panel 1 may include a back panel frame 11 (plastic parts), a heat insulation layer 12 (foam), a heating pad 13, a back panel decorative layer 14 (covering layer), and a sensing pad 15. The heat insulation layer 12 may be omitted. The heating pad 13 and the sensing pad 15 may be integrated into one layer. The back panel decorative layer 14 may be fabric, single leather (including genuine leather, PU leather, PVC leather), or a cover (leather with a composite layer). The sensing pad 15 is used to detect human contact. In radiant heating mode, once human contact occurs, the heating element or heating layer 131 is controlled to adjust the heating temperature to a fourth temperature. The fourth temperature is a temperature value that ensures the human body avoids low-temperature burns, which is specified here as 45°C or below, to prevent burns. Thus, this disclosure can provide heating for rear passengers 2 in a lower temperature environment, and provides a faster heating rate and higher comfort in the form of radiant heating. For rear passenger 2, the knee radiant heating, combined with the optional use of graphene material, can also provide infrared therapy effects. The heating application of the seat back panel 1 can reduce the use of air conditioning for temperature regulation and, when used in conjunction with air conditioning, reduce overall vehicle energy consumption.

[0047] To achieve the aforementioned temperature management for multi-scenario switching, in addition to the structure of the seat back panel 1 itself, the design of the corresponding sensing components 3 and controller 4 is also crucial. Therefore, as... Figure 10 As shown, the seat back panel assembly 100 also includes a sensing component 3, which is configured to detect whether the seat back panel 1 is in a first usage scenario or a third usage scenario. In the first usage scenario, the seat back panel 1 is in contact with the seat back A and the seat back A is in the usage position. In the third usage scenario, the seat back panel 1 is in contact with the seat back A and the seat back A is in the folded position. The assembly also includes a controller 4, which is communicatively connected to the sensing component 3 and to the heating pad 13 of the seat back panel 1. The controller 4 sends a signal to the heating pad based on the corresponding sensing signal from the sensing component 3 to cause the heating pad 13 to output a corresponding heating power.

[0048] When the sensing component 3 detects that the seat back panel 1 is in a first usage scenario, the controller 4 causes the heating pad 13 to output corresponding heating power, so that the seat back panel 1 provides a first temperature. When the sensing component 3 detects that the seat back panel 1 is in a third usage scenario, the controller 4 causes the heating pad 13 to output corresponding heating power, so that the seat back panel 1 provides a second temperature for use with shoes on and / or a third temperature for use without shoes on. Here, at least the first and third usage scenarios are considered. Both the design of the back panel frame 11 being fixedly installed on the backrest frame A1 and the design of the back panel frame 11 being rotatably or flip-foldably installed on the backrest frame A1 involve the first and third usage scenarios. However, when the back panel frame 11 is rotatably or flip-foldably installed on the backrest frame A1, a second scenario is also involved, in which the seat back panel 1 is unfolded and the seat backrest A is in the use position. In this regard, the sensing component 3 is also configured to detect whether the seat back panel 1 is in a second scenario. When the sensing component 3 detects that the seat back panel 1 is in a second scenario, the controller 4 causes the heating pad 13 to output a corresponding heating power, so that the seat back panel 1 provides a second temperature for the case of wearing shoes and / or a third temperature for the case of taking off shoes.

[0049] In the three usage scenarios mentioned above, the second and third scenarios involve direct contact between the feet (with or without shoes) of the rear passenger 2. In the first usage scenario, there is a gap or separation between the rear passenger 22 and the seat back panel 1. Heat is then provided to the rear passenger 22 via radiant heating, resulting in a relatively high initial temperature. If the rear passenger 2 accidentally touches the seat back panel 1 in the first usage scenario, the continued high initial temperature could cause burns. Therefore, the sensing component 3 can be configured to detect whether the seat back panel 1 is being contacted. In the first usage scenario, when the sensing component 3 detects contact with the seat back panel 1, the controller 4 controls the heating pad 13 to adjust the heating temperature to a fourth temperature, which is a temperature value designed to prevent low-temperature burns. Furthermore, the sensing component 3 can also be configured to detect the distance between the rear passenger 2 and the seat back panel 1. In the first usage scenario, when the sensing component 3 detects that the distance between the rear passenger 2 and the seat back panel 1 is zero, the controller 4 controls the heating pad 13 to adjust the heating temperature to a fourth temperature, which is a temperature value designed to prevent low-temperature burns to the human body. And / or in the first usage scenario, the controller 4 adjusts the heating power of the heating pad 13 according to the distance between the rear passenger 2 and the seat back panel 1 detected by the sensing component 3. In this regard, in the first usage scenario, the controller 4 decreases the heating power of the heating pad 13 as the distance between the rear passenger 2 and the seat back panel 1 decreases, or increases the heating power of the heating pad 13 as the distance between the rear passenger 2 and the seat back panel 1 increases.

[0050] To achieve the sensing functions described above, in some embodiments, the sensing component 3 may include a first angle sensor for detecting the tilt angle or tilt state of the seat back A, the first angle sensor being disposed at the adjuster of the seat back A. The sensing component 3 may also include a second angle sensor for detecting the tilt angle of the seat back panel 1, the second angle sensor being disposed at the tilt axis of the seat back panel 1. To detect whether the seat back panel 1 is being contacted, the sensing component 3 may include a first sensing pad for detecting whether the seat back panel 1 is being contacted, the first sensing pad being disposed in the seat back panel 1. Furthermore, to detect the distance between the rear passenger 2 and the seat back panel 1, the sensing component 3 may include a second sensing pad for detecting the distance between the rear passenger 2 and the seat back panel 1, the second sensing pad being disposed in the seat back panel 1. In addition to the sensors directly disposed in the relevant component areas as described above, it is also conceivable that the sensing component 3 includes or is configured as an image recognition-based vision sensor 31, the vision sensor 31 being arranged such that the vision sensor 31 can monitor the state of the seat back panel 1 and the seat back A. For example, the vision sensor 31 is arranged in an area on the roof that corresponds to the rear seats (see...). Figure 11 Besides the roof, other arrangements of the vision sensor 31 within the vehicle's interior space are also conceivable, such as placement in the B-pillar or C-pillar. This vision sensor 31 can determine the current usage scenario based on image recognition principles.

[0051] In this disclosure, since the heating pad 13 is arranged inside the seat back panel 1, the setting or control of the heating power of the heating pad 13 needs to take into account the heat loss from the heating pad 13 to the side facing the rear passenger 2 under various usage scenarios, so that a specified temperature, such as a first, second, third, or fourth temperature, is output at the side facing the rear passenger 2. For example, with Figure 8 Taking the illustrated embodiment as an example, in the first and third usage scenarios, the back panel decorative layer 14 faces the rear passenger 2. The heat generated by the heating pad 13 needs to ensure that the back panel decorative layer 14 outputs a corresponding specified temperature, taking into account its structural dimensions and materials. In the second scenario, the back panel frame 11 faces the rear passenger 2, and the heat generated by the heating pad 13 also needs to ensure that the back panel decorative layer 14 outputs a corresponding specified temperature, taking into account its structural dimensions and materials. This variation in heat power specific to different scenarios can be calibrated in advance based on the specific layer structure design.

[0052] It should be noted that, in this disclosure, the "use position" of the seat back A refers to a position in which an occupant can sit down. The "folding position" of the seat back A refers to a position in which the seat back A is folded forward and laid flat.

[0053] Furthermore, it should be noted that in this disclosure, "rear row" refers to any row other than the first row. For example, in a vehicle with three rows of seats, "rear row" could refer to the second or third row.

[0054] The above description is merely a preferred embodiment of this disclosure and is not intended to limit the scope of this disclosure. Various variations can be made to the above embodiments of this disclosure. That is, all simple and equivalent changes and modifications made based on the claims and description of this application fall within the protection scope of the claims of this patent. Any aspects not described in detail in this disclosure are conventional technical content.

Claims

1. A seat back panel assembly, characterized in that, The seat back panel assembly includes: A seat back panel, the seat back panel being configured to provide heating for rear passengers, the seat back panel including a back panel frame, a heating pad and a back panel decorative layer, wherein the back panel frame is mounted on the backrest frame of the seat back, the heating pad includes a heating layer to generate heat and transfer heat outward, and the back panel decorative layer serves as an exterior decorative element. A sensing component configured to detect whether the seat backrest is in a first usage scenario or a third usage scenario, wherein in the first usage scenario the seat backrest is in contact with the seat back and the seat back is in a used position, and in the third usage scenario the seat backrest is in contact with the seat back and the seat back is in a folded position; and The controller is communicatively connected to the sensing components and to the heating pad of the seat back panel. The controller sends a signal to the heating pad based on the corresponding sensing signal from the sensing components to cause the heating pad to output the corresponding heating power.

2. The seat back panel assembly according to claim 1, characterized in that, The controller can cause the heating pad to output corresponding heating power when the sensing component detects that the seat back panel is in a first usage scenario, so that the seat back panel provides a first temperature. When the sensing component detects that the seat back panel is in a third usage scenario, the controller can cause the heating pad to output corresponding heating power, so that the seat back panel provides a second temperature for rear passengers wearing shoes and / or a third temperature for rear passengers taking off shoes.

3. The seat back panel assembly according to claim 2, characterized in that, The seat back panel is foldable. In the second usage scenario, the seat back panel is folded open and the seat back is in the use position. The sensing component is also configured to detect whether the seat back panel is in the second usage scenario. The controller can cause the heating pad to output corresponding heating power when the sensing component detects that the seat back panel is in the second usage scenario, so that the seat back panel provides a second temperature for rear passengers wearing shoes and / or a third temperature for rear passengers taking off shoes.

4. The seat back panel assembly according to claim 1, characterized in that, The sensing component is configured to detect whether the seat back panel is being contacted, wherein... In the first usage scenario, the controller can cause the heating pad to output the corresponding heating power when the sensing component detects that the seat back panel is being touched, so that the seat back panel provides a fourth temperature, which is a temperature value that protects the human body from low-temperature burns.

5. The seat back panel assembly according to claim 1, characterized in that, The sensing component is configured to detect the distance between the rear passenger and the seat back panel, wherein, In the first usage scenario, the controller can cause the heating pad to output corresponding heating power when the sensing component detects that the distance between the rear passenger and the seat back is zero, so that the seat back provides a fourth temperature, which is a temperature value that protects the human body from low-temperature burns; and / or In the first usage scenario, the controller adjusts the heating power of the heating pad based on the distance between the rear passenger and the seat back panel detected by the sensing components.

6. The seat back panel assembly according to claim 5, characterized in that, In the first usage scenario, the controller reduces the heating power of the heating pad as the distance between the rear passenger and the seat back decreases, or increases the heating power of the heating pad as the distance between the rear passenger and the seat back increases.

7. The seat back panel assembly according to claim 2, characterized in that, The sensing component includes a first angle sensor for detecting the tilt angle or tilt state of the seat back, the first angle sensor being disposed at the seat back adjuster.

8. The seat back panel assembly according to claim 3, characterized in that, The sensing component includes a second angle sensor for detecting the flip angle of the seat back panel, the second angle sensor being disposed at the flip axis of the seat back panel.

9. The seat back panel assembly according to claim 4, characterized in that, The sensing component includes a first sensing pad disposed in the seat back panel for detecting whether the seat back panel is being contacted.

10. The seat back panel assembly according to claim 5, characterized in that, The sensing assembly includes a second sensing pad disposed in the seat back panel for detecting the distance between a rear passenger and the seat back panel.

11. The seat back panel assembly according to any one of claims 1 to 6, characterized in that, The sensing component is constructed as an image recognition-based visual sensor, which is arranged such that it can monitor the state of the seat back panel and seat backrest.

12. The seat back panel assembly according to claim 11, characterized in that, The vision sensor is located in the area of ​​the vehicle's interior space that corresponds to the rear seats.

13. The seat back panel assembly according to claim 11, characterized in that, The vision sensor is located in the area on the roof that corresponds to the rear seats.

14. The seat back panel assembly according to claim 2 or 3, characterized in that, The first temperature is between 60℃±5℃ and 70℃±5℃, while the second temperature is between 50℃±5℃ and 60℃±5℃ and / or the third temperature is between 40℃±5℃ and 50℃±5℃.

15. The seat back panel assembly according to any one of claims 1 to 6, characterized in that, The controller controls or sets the heating power of the heating pad so that, in the corresponding usage scenario, the specified temperature is output on the side of the seat back facing the rear passenger.

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