Automobile trim panel with subcutaneous light-emitting function

Abstract

The invention provides an automobile trim panel with a subcutaneous light-emitting function, and relates to the technical field of automobile interiors. The light-emitting device comprises a mounting plate, a light-emitting part, a light-transmitting plate and a light uniformizing plate, the mounting plate is arranged on the automobile instrument desk, and the light-emitting part is arranged on the plate face of the side, facing the interior of an automobile, of the mounting plate; the light-transmitting plate is connected with the mounting plate, and a light-transmitting skin is arranged on the side, facing the interior of the vehicle, of the light-transmitting plate. The light uniformizing plate is arranged between the light-transmitting plate and the light-emitting part. The LED lamp also has a good decoration effect under the condition that the light-emitting plate is extinguished.

Description

Technical Field

[0001] This application relates to the technical field of automotive interior decoration, and particularly to an automotive trim panel with a subcutaneous lighting function. Background Art

[0002] An automotive trim panel is a component commonly used on the automotive instrument panel for decorative and protective purposes.

[0003] Existing high-end automotive trim panels generally include a support plate, a light-transmitting skin, and a lighting panel. The support plate is disposed on the automotive instrument panel. The light-transmitting skin is wrapped around one side surface of the support plate facing the interior of the vehicle. The lighting panel is disposed between the support plate and the light-transmitting skin. The lighting panel can be an LED light strip, so as to emit light from below the light-transmitting skin through the lighting panel to make the interior atmosphere of the vehicle more futuristic and sci-fi.

[0004] However, when the LED light strip is not lit, the external light will reflect components such as the lamp beads and wires on the LED light strip on the transparent skin, thus destroying the decorative effect of the transparent skin.

[0005] In view of this, there is a need to provide an automotive trim panel with a subcutaneous lighting function. Summary of the Invention

[0006] In order to solve the problem that when the LED light strip of the existing automotive trim panel is not lit, the external light will reflect the LED light strip on the transparent skin, thereby destroying the decorative effect of the transparent skin, this application provides an automotive trim panel with a subcutaneous lighting function.

[0007] An automotive trim panel with a subcutaneous lighting function provided by this application adopts the following technical solution: It includes a mounting plate, a lighting component, a light-transmitting plate, and a light homogenizing plate. The mounting plate is disposed on the automotive instrument panel, and the lighting component is disposed on one side surface of the mounting plate facing the interior of the vehicle; The light-transmitting plate is connected to the mounting plate, and a light-transmitting skin is disposed on one side of the light-transmitting plate facing the interior of the vehicle; The light homogenizing plate is disposed between the light-transmitting plate and the lighting component.

[0008] By adopting the above technical solution, when the lighting component emits light, the light homogenizing plate can evenly disperse the light of the lighting component onto the light-transmitting plate; when the lighting component is extinguished, the light homogenizing plate can first weaken the external light passing through the light-transmitting plate and irradiating onto the lighting component, and then disperse the light reflected by the lighting component onto the light-transmitting plate, so that components such as the lamp beads and wires on the lighting component will not be reflected by the external light on the transparent skin, thereby ensuring that the automotive trim panel with a subcutaneous lighting function also has a good decorative effect when the lighting panel is extinguished.

[0009] Specifically, the lighting component is an LED light strip.

[0010] By adopting the above technical solution, the LED light strip can emit light from below the light-transmitting skin and the light-transmitting plate, making the interior atmosphere of the car more futuristic and sci-fi.

[0011] Specifically, a laser pattern is provided on the side of the light-transmitting plate facing the interior of the vehicle.

[0012] By adopting the above technical solution, the laser pattern can cooperate with the light emitted by the light-emitting component to make the interior atmosphere of the car more futuristic and sci-fi.

[0013] Specifically, a connecting ear is provided on one side of the mounting plate.

[0014] By adopting the above technical solution, the mounting plate can be connected to the vehicle instrument panel through the connecting ear.

[0015] Specifically, a buckle is provided on the side surface of the mounting plate facing away from the interior of the vehicle.

[0016] By adopting the above technical solution, the mounting plate can be connected to the vehicle instrument panel by inserting the buckle into the corresponding clamping hole on the vehicle instrument panel.

[0017] Specifically, it further includes a reflector. A receiving groove is formed on the side surface of the mounting plate facing the interior of the vehicle. The light-emitting component is provided on the groove wall of the receiving groove facing the interior of the vehicle. The reflector is provided on the groove wall of the receiving groove and can reflect the light emitted by the light-emitting component towards the light homogenizing plate.

[0018] By adopting the above technical solution, the reflector can reflect the light emitted by the light-emitting component towards the light homogenizing plate, so as to concentrate the light emitted by the light-emitting component through the reflector, enabling more light to pass through the light-transmitting plate and the light-transmitting skin.

[0019] Furthermore, it further includes a heat dissipation component. The heat dissipation component is connected to the light-emitting component and can dissipate heat from the light-emitting component.

[0020] By adopting the above technical solution, the heat dissipation component can dissipate heat from the light-emitting component. On the one hand, it makes the light-emitting component less likely to be damaged due to excessive temperature during long-term and high-power operation. On the other hand, it can protect the light-transmitting skin, so that the light-transmitting skin is less likely to deform, crack or lose luster due to being baked by the high temperature of the light-emitting component.

[0021] Furthermore, the heat dissipation component includes a heat sink. One side of the heat sink is connected to the side of the light-emitting component facing away from the interior of the vehicle.

[0022] By adopting the above technical solution, the heat sink can absorb and direct the heat of the light-emitting component away from the light-transmitting skin, so as to protect the light-transmitting skin.

[0023] Furthermore, the heat dissipation component further includes a cooling box, a heat transfer pipe, a piston, and an elastic member. An air storage cavity is provided inside the cooling box. A communication hole leading to the outside is formed on the inner wall of the air storage cavity. One end of the heat transfer pipe passes through the communication hole and extends into the air storage cavity and is connected to the piston. The piston divides the air storage cavity into a sealed chamber and a communication chamber. The communication hole is formed on the inner wall of the communication chamber. The elastic member is arranged between the piston and the inner wall of the communication chamber and can apply a force to the piston to move away from the communication hole. A part of the outer wall of the cooling box close to the sealed chamber is connected to one end of the heat sink away from the light-emitting member. The heat transfer pipe includes a heat transfer section and a heat insulation section. The end of the heat transfer section is connected to the piston. A through hole adapted to the heat transfer pipe is formed on the air outlet duct of the vehicle-mounted air conditioner. The heat insulation section passes through the through hole and extends into the air outlet duct. When the gas in the sealed chamber expands due to heat, the gas can drive the piston to drive the heat transfer section to insert into the air outlet duct.

[0024] By adopting the above technical solution, when the temperature of the light-emitting member is too high, the heat sink can transfer the heat generated by the light-emitting member to the sealed chamber, so that the gas in the sealed chamber expands due to heat and pushes the piston to drive the heat transfer pipe to move towards the direction close to the air outlet duct of the vehicle-mounted air conditioner. Then, the heat transfer section on the heat transfer pipe extends into the air outlet duct, so that the cold air in the air outlet duct can be used to cool the heat transfer pipe, and then the temperature of the cooling box, the heat sink, and the light-emitting member can be absorbed through the heat transfer pipe. When the temperature of the light-emitting member is close to the ambient temperature, the gas in the sealed chamber will not expand due to heat. At this time, the elastic member will apply a force to the piston to move away from the communication hole, so that the heat insulation section on the heat transfer pipe extends into the air outlet duct, so that the hot air flowing through the air outlet duct will not reversely heat the cooling box, the heat sink, and the light-emitting member.

[0025] Furthermore, an air inlet hole leading to the outside is formed on the inner wall of the sealed chamber. A one-way valve is provided in the air inlet hole. The one-way valve can prevent the gas in the sealed chamber from leaving the sealed chamber through the air inlet hole.

[0026] By adopting the above technical solution, the setting of the one-way valve can ensure that the air pressure in the sealed chamber will not be in a negative pressure state due to the decrease of the ambient temperature, so that the automobile trim panel with the subcutaneous light-emitting function has a heat dissipation effect in seasons with different temperatures.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: 1. It includes a mounting plate, a light-emitting component, a light-transmitting plate, and a light homogenizing plate. The mounting plate is provided on the vehicle instrument panel, and the light-emitting component is provided on the side surface of the mounting plate facing the interior of the vehicle. The light-transmitting plate is connected to the mounting plate, and a light-transmitting skin is provided on the side of the light-transmitting plate facing the interior of the vehicle. The light homogenizing plate is provided between the light-transmitting plate and the light-emitting component. When the light-emitting component emits light, the light homogenizing plate can evenly disperse the light of the light-emitting component onto the light-transmitting plate; when the light-emitting component is extinguished, the light homogenizing plate can first weaken the light from the outside passing through the light-transmitting plate and irradiating onto the light-emitting component, and then disperse the light reflected by the light-emitting component onto the light-transmitting plate, so that components such as the lamp beads and wires on the light-emitting component will not be reflected by the outside light on the transparent skin, thus ensuring that the automotive decorative panel with a subcutaneous light-emitting function also has a good decorative effect when the light-emitting panel is extinguished; 2. It further includes a heat dissipation component. The heat dissipation component is connected to the light-emitting component and can dissipate heat from the light-emitting component. The heat dissipation component includes a heat sink, a cooling box, a heat transfer tube, a piston, and an elastic member. The interior of the cooling box is provided with a gas storage cavity, and a communication hole leading to the outside is opened on the inner wall of the gas storage cavity. One end of the heat transfer tube passes through the communication hole and extends into the gas storage cavity and is connected to the piston. The piston divides the gas storage cavity into a sealed chamber and a communication chamber, and the communication hole is opened on the inner wall of the communication chamber. The elastic member is provided between the piston and the inner wall of the communication chamber and can apply a force to the piston away from the communication hole. The part of the outer wall of the cooling box close to the sealed chamber is connected to the end of the heat sink away from the light-emitting component. The heat transfer tube includes a heat transfer section and a heat insulation section. The end of the heat transfer section is connected to the piston. A through hole adapted to the heat transfer tube is opened on the air outlet duct of the vehicle air conditioner. The heat insulation section passes through the through hole and extends into the air outlet duct. When the gas in the sealed chamber expands due to heat, the gas can drive the piston to drive the heat transfer section to insert into the air outlet duct. When the temperature of the light-emitting component is too high, the heat sink can transfer the heat generated by the light-emitting component to the sealed chamber, so that the gas in the sealed chamber expands due to heat and pushes the piston to drive the heat transfer tube to move towards the direction close to the air outlet duct of the vehicle air conditioner, and then the heat transfer section on the heat transfer tube extends into the air outlet duct, so that the cold air in the air outlet duct can be used to cool the heat transfer tube, and then the temperature of the cooling box, the heat sink, and the light-emitting component can be absorbed through the heat transfer tube; when the temperature of the light-emitting component is close to the ambient temperature, the gas in the sealed chamber will not expand due to heat. At this time, the elastic member will apply a force to the piston away from the communication hole, so that the heat insulation section on the heat transfer tube extends into the air outlet duct, so that the hot air flowing through the air outlet duct will not reverse-heat the cooling box, the heat sink, and the light-emitting component. Brief Description of the Drawings

[0028] Figure 1 is a perspective view of the first embodiment of the present application; Figure 2 is a front view of the first embodiment of the present application; Figure 3 is along Figure 2 the schematic cross-sectional view taken along the A-A direction in Figure 4 is the front view of the second embodiment of the present application; Figure 5 is a schematic cross-sectional view taken along the Figure 4 direction B-B in; Figure 6 is a schematic cross-sectional view taken along the Figure 5 direction C-C in, where only a part of the cooling box is shown for the convenience of showing the one-way valve.

[0029] Reference numerals: 1, mounting plate; 11, connecting ear; 12, buckle; 2, light-emitting member; 3, light-transmitting plate; 31, light-transmitting skin; 4, light homogenizing plate; 5, reflecting plate; 6, heat dissipation assembly; 61, heat sink; 62, cooling box; 621, sealing chamber; 6211, one-way valve; 63, heat transfer tube; 631, heat transfer section; 632, heat insulation section; 64, piston; 65, elastic member. Detailed implementation manners

[0030] Figure 1 is the perspective view of the first embodiment of the present application, Figure 2 is the front view of the first embodiment of the present application. Refer to Figure 1 and Figure 2 , in the first embodiment, an automotive trim panel with a subcutaneous light-emitting function is installed on an automotive instrument panel (not shown in the figure). The front of the automotive trim panel faces the interior of the vehicle, the back faces the automotive instrument panel, one end is located between the air outlet of the vehicle-mounted air conditioner near the shift lever and the center control screen of the vehicle, and the other end is located near the position of the co-pilot's door. The automotive trim panel specifically includes a mounting plate 1, a light-emitting member 2, a light-transmitting plate 3, and a light homogenizing plate 4. A connecting ear 11 is provided on one side of the mounting plate 1 near the co-pilot's door so that the mounting plate 1 can be connected to the automotive instrument panel through the connecting ear 11; a buckle 12 is provided on the side surface of the mounting plate 1 facing away from the interior of the vehicle so that the mounting plate 1 can be connected to the automotive instrument panel by inserting the buckle 12 into a corresponding clamping hole on the automotive instrument panel.

[0031] Figure 3 is a schematic cross-sectional view taken along the Figure 2 direction A-A in. Refer to Figure 2 and Figure 3, the light-emitting component 2 is an LED light strip, which is arranged on the inner-side surface of the mounting plate 1 facing the vehicle interior. The light-transmitting plate 3 is connected to the mounting plate 1. The light-transmitting plate 3 can be a transparent plastic plate. A laser pattern can be set on the inner side of the transparent plastic plate facing the vehicle interior by first coating it with black paint and then removing the black paint with a laser engraving machine, so that the laser pattern can cooperate with the light emitted by the light-emitting component 2 to make the interior atmosphere of the vehicle more futuristic and sci-fi. A light-transmitting skin 31 is arranged on the inner side of the light-transmitting plate 3 facing the vehicle interior. The light homogenizing plate 4 is arranged between the light-transmitting plate 3 and the light-emitting component 2, so that the light homogenizing plate 4 can evenly disperse the light of the light-emitting component 2 onto the light-transmitting plate 3 when the light-emitting component 2 emits light. When the light-emitting component 2 is turned off, it can first weaken the light passing through the light-transmitting plate 3 and irradiating onto the light-emitting component 2 from the outside, and then disperse the light reflected by the light-emitting component 2 towards the light-transmitting plate 3, so that components such as the lamp beads and wires on the light-emitting component 2 will not be reflected by the outside light on the transparent skin, thus ensuring that the automotive trim panel with the subcutaneous light-emitting function also has a good decorative effect when the light-emitting panel is turned off.

[0032] Figure 4 is the front view of the second embodiment of the present application, Figure 5 is along Figure 4 the schematic cross-sectional view taken along the B-B direction in Figure 4 and Figure 5 , in the second embodiment, an automotive trim panel with a subcutaneous light-emitting function further includes a reflector 5 and a heat dissipation component 6. A receiving groove is formed on the inner-side surface of the mounting plate 1 facing the vehicle interior. The light-emitting component 2 is arranged on the inner-side wall of the receiving groove facing the vehicle interior. The reflector 5 is arranged on the wall of the receiving groove and can reflect the light emitted by the light-emitting component 2 towards the reflector 5 towards the light homogenizing plate 4, so as to concentrate the light emitted by the light-emitting component 2 through the reflector 5, so that more light can pass through the light-transmitting plate 3 and the light-transmitting skin 31.

[0033] See Figure 4 and Figure 5, below the automotive trim panel with subcutaneous lighting function is the air outlet duct (not shown in the figure) of the vehicle-mounted air conditioner near the gear lever. The heat dissipation component 6 includes a cooling box 62, three heat transfer tubes 63, three pistons 64, three elastic members 65, and multiple heat dissipation fins 61. The multiple heat dissipation fins 61 are arranged in parallel at intervals on the side of the lighting member 2 facing away from the interior of the vehicle. The cooling box 62 is disposed between the multiple heat dissipation fins 61 and the air outlet duct of the vehicle-mounted air conditioner, and one end of each heat dissipation fin 61 away from the lighting member 2 is connected to the top of the cooling box 62; a gas storage cavity is provided inside the cooling box 62, and three communication holes leading to the outside are opened on the bottom wall of the gas storage cavity. The communication holes correspond to the heat transfer tubes 63, the pistons 64, and the elastic members 65 one by one. The top end of each heat transfer tube 63 passes through a corresponding communication hole and extends into the gas storage cavity and is connected to a corresponding piston 64. Each piston 64 abuts against the inner wall of the gas storage cavity and divides the gas storage cavity vertically into a sealed chamber 621 and a communication chamber. Each elastic member 65 is disposed between the bottom of the piston 64 and the inner wall of the communication chamber. The elastic member 65 can be a compression spring to be able to apply a force away from the communication hole to the piston 64 through the compression spring.

[0034] Figure 6 is a schematic cross-sectional view taken along Figure 5 the C-C direction in the figure, where only a part of the cooling box is shown to facilitate showing the one-way valve. See Figure 5 and Figure 6 , when the cross-section of the heat transfer tube 63 is circular, the communication hole can be an oval hole so that a part of the hole wall of the communication hole can abut against the tube body of the heat transfer tube 63, while there is a gap between the other part of the hole wall and the heat transfer tube 63 to enable gas to enter or communicate with the chamber through these gaps; the heat transfer tube 63 includes a heat transfer section 631 and a heat insulation section 632. The top end of the heat transfer section 631 is connected to the piston 64, the bottom end of the heat transfer section 631 is connected to the top end of the heat insulation section 632, and the bottom end of the heat insulation section 632 is inserted into a through hole opened on the air outlet duct of the vehicle-mounted air conditioner and extends into the air outlet duct and can block the through hole; an air inlet hole leading to the outside is opened on the inner wall of the sealed chamber 621, and a one-way valve 6211 is provided in the air inlet hole. The one-way valve 6211 can prevent the gas in the sealed chamber 621 from leaving the sealed chamber 621 through the air inlet hole to ensure that the air pressure in the sealed chamber 621 will not be in a negative pressure state due to the decrease in ambient temperature, so that the automotive trim panel with subcutaneous lighting function has a heat dissipation effect in seasons with different temperatures.

[0035] Specifically, the above heat dissipation fins 61 and the cooling box 62 can be made of a metal material with good heat conduction performance. The heat transfer section 631 can be a heat pipe with good heat transfer performance, and the heat insulation section 632 can be made of a rubber or plastic material with heat insulation performance.

[0036] The working process of the second embodiment of the present application is as follows: When the vehicle-mounted air conditioner is turned on for cooling and the temperature of the light-emitting component 2 is also high, the heat sink 61 can transfer the heat generated by the light-emitting component 2 to the sealed chamber 621, so that the gas in the sealed chamber 621 expands due to heat and pushes the piston 64 to drive the heat transfer tube 63 to move towards the air outlet duct of the vehicle-mounted air conditioner. Subsequently, the heat transfer section 631 on the heat transfer tube 63 extends into the air outlet duct, so that the cold air in the air outlet duct can be used to cool the heat transfer tube 63, and then the temperature of the cooling box 62, the heat sink 61 and the light-emitting component 2 can be absorbed through the heat transfer tube 63; When the vehicle-mounted air conditioner is turned on for cooling and the temperature of the light-emitting component 2 is not high, the gas in the sealed chamber 621 will not expand due to heat. At this time, the elastic member 65 will apply a force to the piston 64 away from the communication hole, so that the heat transfer section 631 on the heat transfer tube 63 leaves the air outlet duct, and the heat insulation section 632 is located in the air outlet duct and blocks the through hole where the heat insulation section 632 is located, so that the cold air flowing through the air outlet duct will not escape from the through hole; When the vehicle-mounted air conditioner is turned on for heating and the temperature of the light-emitting component 2 is not high, the gas in the sealed chamber 621 will not expand due to heat. At this time, the elastic member 65 will apply a force to the piston 64 away from the communication hole, so that the heat transfer section 631 on the heat transfer tube 63 leaves the air outlet duct and the heat insulation section 632 is located in the air outlet duct, so that the hot air flowing through the air outlet duct will not heat the cooling box 62, the heat sink 61 and the light-emitting component 2 in reverse.

[0037] The implementation principle of an automotive trim panel with a subcutaneous lighting function in this application is as follows: When the vehicle-mounted air conditioner is turned on for cooling and the temperature of the light-emitting component 2 is also high, the heat sink 61 can transfer the heat generated by the light-emitting component 2 to the sealed chamber 621, so that the gas in the sealed chamber 621 expands due to heat and pushes the piston 64 to drive the heat transfer tube 63 to move towards the air outlet duct of the vehicle-mounted air conditioner. Subsequently, the heat transfer section 631 on the heat transfer tube 63 extends into the air outlet duct, so that the cold air in the air outlet duct can be used to cool the heat transfer tube 63, and then the temperature of the cooling box 62, the heat sink 61 and the light-emitting component 2 can be absorbed through the heat transfer tube 63. On the one hand, it can make the light-emitting component 2 not easily damaged due to excessive temperature during long-term and high-power operation. On the other hand, it can protect the light-transmitting skin 31, so that the light-transmitting skin 31 is not easily deformed, cracked or lose luster due to being baked by the high temperature of the light-emitting component 2; When the vehicle-mounted air conditioner is turned on for cooling and the temperature of the light-emitting component 2 is not high, the gas in the sealed chamber 621 will not expand due to heat. At this time, the elastic member 65 will apply a force to the piston 64 away from the communication hole, so that the heat transfer section 631 on the heat transfer tube 63 leaves the air outlet duct, and the heat insulation section 632 is located in the air outlet duct and blocks the through hole where the heat insulation section 632 is located, so that the cold air flowing through the air outlet duct will not escape from the through hole; When the vehicle-mounted air conditioner is turned on for heating and the temperature of the light-emitting component 2 is not high, the gas in the sealed chamber 621 will not expand due to heat. At this time, the elastic component 65 will apply a force to the piston 64 away from the communication hole, so that the heat transfer section 631 on the heat transfer tube 63 leaves the air outlet duct, and the heat insulation section 632 is located in the air outlet duct, so that the hot air flowing through the air outlet duct will not reversely heat the temperature reduction box 62, the heat sink 61 and the light-emitting component 2.

[0038] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An automobile trim panel with subcutaneous luminous function, characterized in that: It comprises a mounting plate (1), a light-emitting component (2), a light-transmitting plate (3) and a light-diffusing plate (4); the mounting plate (1) is arranged on the vehicle dashboard, and the light-emitting component (2) is arranged on a side of the mounting plate (1) facing the interior of the vehicle; The light-transmitting plate (3) is connected to the mounting plate (1), and a light-transmitting surface (31) is provided on the side of the light-transmitting plate (3) facing the interior of the vehicle; The light-diffusing plate (4) is arranged between the light-transmitting plate (3) and the light-emitting element (2).

2. The automobile trim with subcutaneous luminous function according to claim 1, characterized in that: The light-emitting element (2) is an LED light strip.

3. The automobile trim with subcutaneous luminous function according to claim 1, characterized in that: A laser pattern is provided on the side of the light-transmitting plate (3) facing the interior of the vehicle.

4. The automobile trim with subcutaneous luminous function according to claim 1, characterized in that: A connecting ear (11) is provided on one side of the mounting plate (1).

5. The automobile trim with subcutaneous luminous function according to claim 1, characterized in that: A buckle (12) is provided on a side surface of the mounting plate (1) facing away from the interior of the vehicle.

6. The automobile trim with subcutaneous luminescence function according to claim 1, characterized in that: It also comprises a reflector (5), wherein a receiving groove is provided on a side surface of the mounting plate (1) facing the interior of the vehicle, and the light-emitting element (2) is provided on a side wall of the receiving groove facing the interior of the vehicle, and the reflector (5) is provided on the wall of the receiving groove and is capable of reflecting light from the light-emitting element (2) to the reflector (5) toward the light-dispersing plate (4).

7. The automobile trim with subcutaneous luminescence function according to claim 6, characterized in that: It also comprises a heat dissipation component (6), which is connected to the light-emitting component (2) and is capable of dissipating heat from the light-emitting component (2).

8. The automobile trim with subcutaneous luminous function according to claim 7, characterized in that: The heat dissipation assembly (6) comprises a heat dissipation fin (61), one side of the heat dissipation fin (61) being connected to a side of the light emitting element (2) facing away from the interior of the vehicle.

9. The automobile trim with subcutaneous luminescence function according to claim 8, characterized in that: The heat dissipation assembly (6) further comprises a cooling box (62), a heat transfer tube (63), a piston (64) and an elastic member (65); an air storage chamber is provided inside the cooling box (62); a connecting hole leading to the outside is provided on the inner wall of the air storage chamber; one end of the heat transfer tube (63) passes through the connecting hole and extends into the air storage chamber and is connected to the piston (64); the piston (64) divides the air storage chamber into a sealed chamber (621) and a connecting chamber; the connecting hole is provided on the inner wall of the connecting chamber; the elastic member (65) is provided between the piston (64) and the inner wall of the connecting chamber and is capable of applying a force to the piston (64) away from the connecting hole; a portion of the outer wall of the cooling box (62) close to the sealed chamber (621) is connected to an end of the heat sink (61) away from the light-emitting member (2); The heat transfer tube (63) comprises a heat transfer section (631) and a heat insulation section (632); the end of the heat transfer section (631) is connected to the piston (64); a through hole matching the heat transfer tube (63) is provided on the air outlet of the vehicle air conditioner; the heat insulation section (632) extends into the air outlet through the through hole; when the gas in the sealed chamber (621) expands due to heat, the gas can drive the piston (64) to drive the heat transfer section (631) to be inserted into the air outlet.

10. The automobile trim with subcutaneous luminescence function according to claim 9, characterized in that: An air inlet hole leading to the outside is provided on the inner wall of the sealed chamber (621), and a one-way valve (6211) is provided in the air inlet hole. The one-way valve (6211) can prevent the gas in the sealed chamber (621) from leaving the sealed chamber (621) through the air inlet hole.

Images