Headrest with warm air structure

Abstract

The utility model discloses a headrest with a warm air structure, which comprises a headrest front shell, a headrest rod and a headrest rear shell, the headrest rod is arranged in the headrest front shell, the headrest front shell is connected with the headrest rear shell, the warm air structure is further arranged on the headrest front shell, the warm air structure comprises a ventilation decorative plate, a fixed shell, a fan, a heating control unit and an air duct, and the ventilation decorative plate is connected with the fixed shell. A ventilation decoration plate is arranged below the front face of the headrest front shell, a fixed shell is arranged in an inner cavity of the headrest front shell, a draught fan and a heating controller are arranged in the fixed shell, the bottom of the fixed shell is connected with a warm air inlet of an air channel, a warm air outlet of the air channel is connected with the ventilation decoration plate, and the ventilation decoration plate is connected with the air channel. The air inlet is formed in the position, opposite to the headrest rod, of the bottom of the headrest rear shell. The warm air structure is simple in structure, the air inlet amount can be increased under the condition that the appearance of the headrest is not changed, the heating speed of the warm air structure is improved, the effect of heating while heating can be achieved, and the neck of a driver and passengers can feel warm in cold winter.

Description

Technical Field

[0001] The utility model belongs to the field of vehicle headrests, and particularly relates to a headrest with a warm air structure. Background Art

[0002] The vehicle headrest is installed at the top of the vehicle seat and is usually used to support the heads and necks of the driver and passengers. When a vehicle is rear-ended, the vehicle headrest can play a buffering role to protect the heads and necks of the human body. However, the functions of existing vehicle headrests are relatively single and cannot provide warmth to the neck. In cold winters, it will make the neck feel uncomfortable. At present, although there are also vehicle headrests with warm air functions, they have problems such as complex structures, insufficient air intake, and slow heating. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the above problems, and to provide a headrest with a warm air structure that has a simple structure and can increase the air intake. The warm air structure in the headrest heats up quickly and can achieve instant heating, enabling the necks of the driver and passengers to feel warm even in cold winters, greatly improving the riding experience of the driver and passengers.

[0004] To achieve the above purpose, the utility model provides a headrest with a warm air structure, which includes a headrest front shell, a headrest rod, and a headrest rear shell. The headrest rod is arranged inside the headrest front shell, and the headrest front shell is connected to the headrest rear shell. A warm air structure is also provided on the headrest front shell. The warm air structure includes a ventilation trim plate, a fixed housing, a fan, a heating controller, and an air duct. A ventilation trim plate is provided below the front of the headrest front shell. A fixed housing is arranged in the inner cavity of the headrest front shell. A fan and a heating controller are arranged inside the fixed housing. The bottom of the fixed housing is connected to the warm air inlet of the air duct, and the warm air outlet of the air duct is connected to the ventilation trim plate. The air inlet is arranged at a position on the bottom of the headrest rear shell opposite to the headrest rod.

[0005] As a further optimization, the lower part of the front of the headrest front shell is provided with an inwardly recessed installation groove, which is similar in shape to the lower part of the headrest front shell and extends from the front of the headrest front shell to the bottom of the headrest front shell. A ventilation opening is provided in front of the installation groove, and card holes are provided around the ventilation opening. The ventilation trim plate is installed in the installation groove by snap connection.

[0006] As a further optimization, the ventilation trim panel is a profiling bottom plate similar to the shape under the front shell of the headrest. A plurality of air outlet holes are provided in front of the profiling bottom plate. At positions corresponding to the air outlet holes at the rear of the profiling bottom plate, air gathering ports extending inwards are provided. A plurality of first clamping claws are provided on the periphery of the air gathering ports and at the rear of the profiling bottom plate. After the ventilation trim panel is clamped to the front shell of the headrest through the first clamping claws on the periphery of the air gathering port, the air gathering port passes through the ventilation port on the front shell of the headrest and is connected to the warm air outlet on the air duct, and the first clamping claws at the rear of the profiling bottom plate are clamped to the air duct on the warm air structure.

[0007] As a further optimization, the fixed housing includes a fixed front shell, a fixed rear shell and a fixed lower shell. The fan is installed on the fixed front shell. The fixed front shell is clamped to the fixed rear shell. The fixed rear shell has a plurality of air suction holes at positions corresponding to the fan. After being clamped, the fixed front shell and the fixed rear shell are clamped to the upper end of the fixed lower shell. A heating controller is provided in the fixed lower shell. The lower end of the fixed lower shell is connected to the warm air inlet of the air duct. The fixed housing is connected to the front shell of the headrest by screws.

[0008] As a further optimization, the fixed front shell is provided with a fan installation hole. The fan is installed in the fixed front shell through the fan installation hole. A plurality of first buckles are provided around the fixed front shell. The rear wall of the fixed rear shell is provided with side walls extending towards the fixed front shell. The rear wall and the side walls form a receiving cavity with an open bottom. A plurality of air suction holes are provided on the rear wall of the receiving cavity. The top of the side wall is provided with an upper installation hole, with a plurality of second clamping claws around it and at least one third clamping claw on both sides of the bottom. One side of the side wall is provided with an installation part. The plug-in part on the fan is installed on the fixed rear shell through the installation part. The fixed front shell is clamped to the fixed rear shell through the first buckle and the second clamping claw. After being clamped, the fixed front shell and the fixed rear shell are clamped to the fixed lower shell through the third clamping claw.

[0009] As a further optimization, a controller installation cavity is provided in the fixed lower shell. The upper and lower surfaces of the controller installation cavity are open. The heating controller is arranged in the fixed lower shell through the controller installation cavity. At least one second buckle is provided on both sides of the top of the fixed lower shell. The side of the fixed lower shell is provided with a lower installation hole. The fixed lower shell is clamped to the fixed front shell and the fixed rear shell after being clamped through the second buckle.

[0010] As a further optimization, the air duct includes a warm air duct. The upper end of the warm air duct is the warm air inlet. The lower end of the warm air duct extends towards the ventilation trim panel as the warm air outlet. A plurality of reinforcing ribs are provided on the outer wall of the warm air outlet. A plurality of air guide plates are evenly arranged in the warm air outlet.

[0011] As a further optimization, a sealing sponge is provided at the connection between the ventilation trim panel and the front shell of the headrest.

[0012] As a further optimization, a soft pad is provided at the connection between the fixed housing and the front shell of the headrest.

[0013] Advantages and beneficial effects of the utility model

[0014] 1. The utility model is provided with a warm air structure inside the headrest. The warm air structure is composed of a fixed housing, a blower and a heating controller inside the fixed housing, an air duct and a ventilation trim panel. The warm air structure sucks the cold air in the vehicle into the fixed housing through the blower. After being sucked in, the cold air is heated by the heating controller below the blower and then input into the ventilation trim panel through the air duct. Finally, warm air is output to the necks of the driver and passengers through the air outlet holes on the ventilation trim panel. Therefore, the structure is simpler and more compact, which can save the space inside the headrest and reduce the manufacturing cost. It has stronger versatility and can be applied to more types of headrests.

[0015] 2. The air inlet of the utility model is designed at the position of the bottom of the rear shell of the headrest relative to the headrest rod. Since this position is not easily noticed by the driver and passengers, there is no need to add an air intake grille at the air inlet to block the air inlet, which reduces the cost. And the air inlet of this application is an enlarged hole at the avoidance hole of the original rear shell of the headrest for avoiding the headrest rod, so that the inside of the headrest is connected to the vehicle without affecting the appearance of the headrest.

[0016] 3. The utility model integrates the blower and the heating controller together in the fixed housing, so that the cold air sucked by the blower is heated by the heating controller in the fixed housing. The heated warm air is evenly blown from the ventilation trim panel to the necks of the driver and passengers through the guidance of the air duct, which greatly improves the heating speed of the warm air structure. It can be heated generally within 2s - 3s.

[0017] 4. The utility model is provided with a ventilation trim panel at the position of the front shell of the headrest relative to the neck. The ventilation trim panel is connected to the air duct. Through the ventilation trim panel, the warm air outlet of the air duct can be fixed, preventing the air duct from shaking due to air outlet, and blocking the air duct. At the same time, it can also be changed according to the shape below the headrest, improving the aesthetic appearance of the headrest.

[0018] 5. The warm air structure of the utility model is designed inside the headrest, and the externally exposed ventilation trim panel is snap - fitted in the inward - recessed installation groove. Therefore, the warm air structure is designed according to the shape of the headrest, without changing the appearance of the headrest and occupying the external space of the headrest. So when the headrest supports the head and neck, it will not squeeze the warm air structure and affect the air outlet efficiency of the warm air. Brief description of the drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the accompanying drawings required for description in the embodiments. Obviously, the accompanying drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on the provided drawings.

[0020] Figure 1 is the overall structure schematic diagram provided by the embodiment of the present utility model;

[0021] Figure 2 is the exploded view of the overall structure provided by the embodiment of the present utility model;

[0022] Figure 3 is the schematic diagram after removing the headrest rear shell in the embodiment of the present utility model;

[0023] Figure 4 is the schematic diagram after removing the headrest front shell in the embodiment of the present utility model;

[0024] Figure 5 is the schematic diagram of the ventilation trim panel provided by the embodiment of the present utility model.

[0025] Reference numerals: headrest front shell 1, installation groove 11, ventilation opening 12, card hole 13, headrest rod 2, headrest rear shell 3, air inlet 31, warm air structure 4, ventilation trim panel 41, profiling bottom plate 411, air outlet hole 412, air gathering opening 413, first claw 414, fixed housing 42, fixed front shell 421, fan installation hole 4211, first buckle 4212, fixed rear shell 422, side wall 4221, accommodation cavity 4222, air suction hole 4223, upper installation hole 4224, second claw 4225, third claw 4226, installation part 4227, fixed lower shell 423, controller installation cavity 4231, second buckle 4232, lower installation hole 4233, fan 43, heating controller 44, air duct 45, warm air duct 451, warm air inlet 452, warm air outlet 453, reinforcing rib 454, air guiding plate 455. Specific embodiments

[0026] The terms "first", "second", "third", "fourth", etc. in the description and claims of the present utility model and the above accompanying drawings are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments described here can be implemented in an order other than that shown or described here.

[0027] The specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. It should be noted that in the description of the present utility model, the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0028] As Figures 1 to 4 shown, a headrest with a warm air structure includes a front headrest shell 1, a headrest rod 2, a rear headrest shell 3 and a warm air structure 4. Below the front of the front headrest shell 1, there is an inwardly recessed mounting groove 11. The mounting groove 11 is a profiling groove similar to the shape of the lower part of the front headrest shell 1, extending from the front of the front headrest shell 1 to the bottom of the front headrest shell 1, and is used for mounting the ventilation decorative panel 41 in the warm air structure 4. After the ventilation decorative panel 41 is snap-fitted with the front headrest shell 1, it will not be higher than the outer surface of the front headrest shell 1. In front of the mounting groove 11, there is a ventilation opening 12, and around the ventilation opening 12, there are snap holes 13. After the ventilation decorative panel 41 is snap-fitted and installed in the mounting groove 11, the air collecting opening 413 on the ventilation decorative panel 41 will be inserted into the ventilation opening 12. On one side of the front headrest shell 1 opposite to the rear headrest shell 3, there is an inner cavity, and two headrest rods 2 are inserted into both sides of the inner cavity. After the front headrest shell 1 and the rear headrest shell 3 are snap-fitted, they are connected to the top of the car seat through the headrest rods 2. In the inner cavity in the middle of the headrest rod 2, a warm air structure 4 is connected by screws. The warm air structure 4 includes a ventilation decorative panel 41, a fixed housing 42, a fan 43, a heating controller 44 and an air duct 45. The fixed housing 42 is connected to the front headrest shell 1 by screws. Inside the fixed housing 42, there are a fan 43 and a heating controller 44. By integrating the fan 43 and the heating controller 44 inside the fixed housing 42, the cold air sucked into the fixed housing 42 by the fan 43 can be directly heated by the heating controller 44, and the warm air can be directly output through the air duct 45, reducing the heating area of the heating controller 44, realizing instant heating, and greatly improving the heating time of the warm air structure 4. The bottom of the fixed housing 42 is inserted into the warm air inlet 452 of the air duct 45, and after insertion, the air duct 45 is connected to the front headrest shell 1 by screws. The warm air outlet 453 of the air duct 45 is inserted into the air collecting opening 413 on the ventilation decorative panel 41. The front headrest shell 1 is connected to the rear headrest shell 3 by a claw. At the position of the rear headrest shell 3 opposite to the headrest rod 2 at the bottom, there is an air inlet 31. The air inlet 31 is an enlarged hole at the original avoidance hole of the rear headrest shell 3 for avoiding the headrest rod 2, so that the inside of the headrest is connected to the car without affecting the appearance of the headrest.

[0029] As Figure 2 、 Figure 3and Figure 5 As shown, the ventilation trim panel 41 is a profiling bottom plate 411 similar in shape to the installation groove 11. A plurality of air outlet holes 412 are provided in front of the profiling bottom plate 411. At positions corresponding to the air outlet holes 412 at the rear of the profiling bottom plate 411, air gathering ports 413 extending inward are provided. The air gathering ports 413 can gather the warm air blown out from the air duct 45 and blow it out from the air outlet holes 412 towards the necks of the driver and passengers. At the same time, the air gathering ports 413 play a role in fixing the warm air outlet 453 of the air duct 45, preventing the warm air outlet 453 on the air duct 45 from shaking due to air blowing. A plurality of first claws 414 are provided on the periphery of the air gathering ports 413 and at the rear of the profiling bottom plate 411. After the ventilation trim panel 41 is snap-fitted to the front headrest shell 1 through the first claws 414 on the periphery of the air gathering ports 413, the air gathering ports 413 pass through the ventilation openings 12 on the front headrest shell 1 and are connected to the warm air outlet 453 on the air duct 45. The first claws 414 at the rear of the profiling bottom plate 411 are snap-fitted to the air duct 45 on the warm air structure 4, playing a role in shielding the air duct 45 inside the headrest and further fixing the air duct 45.

[0030] As Figures 2 to 4As shown, the fixed housing 42 includes a fixed front housing 421, a fixed rear housing 422, and a fixed lower housing 423. The fixed front housing 421 is provided with a fan mounting hole 4211. The fan 43 is mounted in the fixed front housing 421 through the fan mounting hole 4211. A plurality of first latches 4212 are provided around the fixed front housing 421. The rear wall of the fixed rear housing 422 is surrounded by a side wall 4221 extending towards the fixed front housing 421. The rear wall and the side wall 4221 form a receiving cavity 4222 with an open bottom. The receiving cavity 4222 is used to receive the fan 43 already mounted on the fixed front housing 421. A plurality of air suction holes 4223 are provided at a position of the rear wall of the receiving cavity 4222 opposite to the fan 43. The fan 43 sucks the cold air inside the vehicle into the fixed housing 42 through the air suction holes 4223. The top of the side wall 4221 is provided with an upper mounting hole 4224, surrounded by a plurality of second claws 4225, and at least one third claw 4226 is provided on both sides of the bottom. The fixed rear housing 422 is snap-fitted with the first latches 4212 on the fixed front housing 421 through the second claws 4225. After the fixed front housing 421 and the fixed rear housing 422 are snap-fitted, they are snap-fitted with the second latches 4232 on the fixed lower housing 423 through the third claws 4226. One side of the side wall 4221 is provided with a mounting portion 4227. The plug-in member 431 on the fan 43 is mounted on the fixed rear housing 422 through the mounting portion 4227. The fan 43 is powered through the plug-in member. The wire harness on the plug-in member passes through the headrest rod 2 and is connected to the controller inside the seat. The fixed lower housing 423 is provided with a controller mounting cavity 4231. The upper and lower surfaces of the controller mounting cavity 4231 are open. The heating controller 44 is snap-fitted into the fixed lower housing 423 through the controller mounting cavity 4231. The heating controller 44 is used to heat the cold air sucked into the fixed housing 42 by the fan 43. The wire harness on the heating controller 44 passes through the headrest rod 2 and is connected to the controller inside the seat. At least one second latch 4232 is provided on both sides of the top of the fixed lower housing 423. The side of the fixed lower housing 423 is provided with a lower mounting hole 4233. The fixed housing 42 is connected to the headrest front shell 1 by inserting screws into the upper mounting hole 4224 and the lower mounting hole 4223.

[0031] As Figure 2 and Figure 4As shown, the air duct 45 includes a warm air duct 451. The upper end of the warm air duct 451 is a warm air inlet 452. The air duct 45 is connected to the fixed housing 42 by inserting the warm air inlet 452 into the open end at the lower end of the fixed lower housing 423. The lower end of the warm air duct 451 is a warm air outlet 453 extending towards the ventilation trim panel 41. A plurality of reinforcing ribs 454 are provided on the outer wall of the warm air outlet 453. The reinforcing ribs 454 are used to strengthen the strength of the warm air outlet 453. A plurality of air guide plates 454 are evenly arranged in the warm air outlet 453. The air guide plates 454 play a role in guiding the air flow, enabling the warm air blown out from the warm air outlet 453 to be more uniform. The air duct 45 is connected to the ventilation trim panel 41 by inserting the warm air outlet 453 into the air collecting port 413 on the ventilation trim panel 41, so that the warm air can be blown from the air outlet holes 412 on the ventilation trim panel 41 towards the neck. The air duct 45 is connected in the inner cavity of the headrest front shell 1 by screws.

[0032] As a further optimization, a sealing sponge is provided at the connection between the air collecting port 413 on the ventilation trim panel 41 and the warm air outlet 453 on the air duct 45. The sealing sponge plays a sealing role and can prevent the warm air from overflowing through the gap between the warm air outlet 453 and the air collecting port 413.

[0033] As a further optimization, a soft pad is provided at the connection between the fixed housing 42 and the headrest front shell 1. In this embodiment, the fixed housing 42 is fixed to the headrest front shell 1 by screws. Therefore, the soft pad in this embodiment is an annular rubber pad. The screws sequentially pass through the fixed housing 42, the rubber pad and the headrest front shell 1 for connection. The soft pad can achieve a soft connection between the warm air structure 4 and the headrest front shell 1, effectively reducing the noise generated due to the vibration of the blower 43, improving the feeling of the driver and passengers and meeting the requirements of the noise test.

[0034] Working principle

[0035] When the warm air structure needs to be heated, the blower 43 and the heating controller 44 are controlled by the controller to start working. The cold air in the car is sucked into the headrest interior through the air inlet at the bottom of the headrest rear shell 3 under the action of the blower 43, and the cold air is sucked into the fixed housing 42 through the air suction holes 4223 on the rear wall of the fixed rear shell 422. The cold air sucked into the fixed housing 42 is heated by the heating controller 44 to generate warm air. The warm air flows along the air duct 45 towards the ventilation trim panel 41 and finally blows towards the necks of the driver and passengers through the air outlet holes 412 on the ventilation trim panel 41.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention, rather than to limit them; although the embodiments of the present invention have been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the solutions of the embodiments of the present invention.

Claims

1. A headrest with a warm air structure, comprising a headrest front shell (1), a headrest rod (2) and a headrest rear shell (3), wherein the headrest rod (2) is arranged in the headrest front shell (1), and the headrest front shell (1) is connected to the headrest rear shell (3), characterized in that: The headrest front shell (1) is also provided with a warm air structure (4), and the warm air structure (4) comprises a ventilation panel (41), a fixed shell (42), a fan (43), a heating controller (44) and an air duct (45). A ventilation panel (41) is provided at the lower front of the headrest front shell (1), a fixed shell (42) is provided in the inner cavity of the headrest front shell (1), and a fan (43) and a heating controller (44) are provided in the fixed shell (42). The bottom of the fixed shell (42) is connected to a warm air inlet (452) of the air duct (45), and the warm air outlet (453) of the air duct (45) is connected to the ventilation panel (41). The air inlet (31) is arranged at a position of the bottom of the headrest rear shell (3) relative to the headrest rod (2).

2. The headrest with a warm air structure according to claim 1, characterized in that: The lower part of the front of the headrest front shell (1) is provided with an inwardly recessed mounting groove (11), the mounting groove (11) is similar in shape to the lower part of the headrest front shell, and extends from the front of the headrest front shell (1) to the bottom of the headrest front shell (1), a vent (12) is provided in front of the mounting groove (11), and clamping holes (13) are provided around the vent (12), and the ventilation decorative panel (41) is mounted in the mounting groove (11) by clamping.

3. The headrest with a warm air structure according to claim 1, characterized in that: The ventilation decorative plate (41) is a contoured bottom plate (411) having a shape similar to that of the lower portion of the headrest front shell (1). A plurality of air outlet holes (412) are arranged in front of the contoured bottom plate (411). An air gathering port (413) extending inward is arranged at a position relative to the air outlet holes (412) at the rear of the contoured bottom plate (411). A plurality of first clamping claws (414) are arranged around the air gathering port (413) and at the rear of the contoured bottom plate (411). After the ventilation decorative plate (41) is clamped with the headrest front shell (1) through the first clamping claws (414) around the air gathering port (413), the air gathering port (413) passes through the ventilation port (12) on the headrest front shell (1) and is connected to the warm air outlet (453) on the air duct (45). The first clamping claw (414) at the rear of the contoured bottom plate (411) is clamped with the air duct (45) on the warm air structure (4).

4. The headrest with a warm air structure according to claim 1, characterized in that: The fixed shell (42) comprises a fixed front shell (421), a fixed rear shell (422) and a fixed lower shell (423); the fan (43) is mounted on the fixed front shell (421); the fixed front shell (421) is snap-fitted with the fixed rear shell (422); the fixed rear shell (422) is provided with a plurality of air suction holes (4223) at a position relative to the fan (43); the snap-fitted fixed front shell (421) and the fixed rear shell (422) are snap-fitted with the upper end of the fixed lower shell (423); a heating controller (44) is provided in the fixed lower shell (423); the lower end of the fixed lower shell (423) is connected to a warm air inlet (452) of an air duct (45); and the fixed shell (42) is connected to the headrest front shell (1) via screws.

5. The headrest with a warm air structure according to claim 4, characterized in that: The fixed front shell (421) is provided with a fan installation hole (4211), and the fan (43) is installed in the fixed front shell (421) through the fan installation hole (4211). The fixed front shell (421) is provided with a plurality of first buckles (4212) around its periphery. The fixed rear shell (422) is provided with a side wall (4221) extending toward the fixed front shell (421) around its rear wall. The rear wall and the side wall (4221) form a receiving cavity (4222) with an open bottom. The rear wall of the receiving cavity (4222) is provided with a plurality of air suction holes (4223). The top of the side wall (4221) is provided with an upper The mounting hole (4224) is provided with a plurality of second claws (4225) around it, and at least one third claw (4226) is provided on both sides of the bottom. One side of the side wall (4221) is provided with a mounting portion (4227). The connector (431) on the fan (43) is mounted on the fixed rear shell (422) through the mounting portion (4227). The fixed front shell (421) is clamped with the fixed rear shell (422) through the first buckle (4212) and the second claw (4225). After clamping, the fixed front shell (421) and the fixed rear shell (422) are clamped with the fixed lower shell (423) through the third claw (4226).

6. The headrest with a warm air structure according to claim 4, characterized in that: The fixed lower shell (423) is provided with a controller installation cavity (4231), and the upper and lower surfaces of the controller installation cavity (4231) are open. The heating controller (44) is arranged in the fixed lower shell (423) through the controller installation cavity (4231). The top two sides of the fixed lower shell (423) are provided with at least one second buckle (4232), and the side of the fixed lower shell (423) is provided with a lower installation hole (4233). The fixed lower shell (423) is clamped with the fixed front shell (421) and the fixed rear shell (422) through the second buckle (4232).

7. The headrest with a warm air structure according to claim 1, characterized in that: The air duct (45) comprises a warm air duct (451), the upper end of the warm air duct (451) is a warm air inlet (452), the lower end of the warm air duct (451) extends in the direction of the ventilation decorative plate (41) to form a warm air outlet (453), the outer wall of the warm air outlet (453) is provided with a plurality of reinforcing ribs (454), and a plurality of air guide plates (454) are evenly distributed in the warm air outlet (453).

8. The headrest with a warm air structure according to claim 1, characterized in that: A sealing sponge is provided at the connection between the ventilation decorative plate (41) and the air duct (45).

9. The headrest with a warm air structure according to claim 1, characterized in that: A soft cushion is provided at the connection between the fixed shell (42) and the headrest front shell (1).

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