Constant voltage long life automotive rear combination lamp assembly with automatic gas pressure regulation

Abstract

This utility model belongs to the technical field of automotive lighting assemblies, and particularly relates to a constant-pressure, long-life automotive rear combination lamp assembly with automatic gas pressure adjustment. This utility model includes a lamp body assembly, which is formed by fastening a lamp housing and a lamp cover together. The lamp housing and lamp cover are sealed together by a sealing strip, forming a sealed cavity. A light source assembly is disposed inside the sealed cavity, the light source assembly including LED beads, a circuit board, and a heat sink. The heat sink is attached to the inner wall of the lamp housing. The lamp body assembly is provided with an automatic pressure regulating mechanism for real-time adjustment of the gas pressure within the sealed cavity. The automatic pressure regulating mechanism includes a pressure sensor, a temperature sensor, a controller, an exhaust assembly, and a gas replenishment assembly. This utility model effectively avoids problems such as sealing structure failure, lamp cover deformation, or cracking caused by pressure fluctuations, significantly extending the service life of the automotive rear combination lamp assembly.

Description

Technical Field

[0001] This utility model belongs to the field of automotive lighting assembly technology, and relates to a constant pressure long life automotive rear combination lamp assembly with automatic gas pressure adjustment. Background Technology

[0002] As a critical safety component of automobiles, the rear combination lamp assembly needs to operate in complex environments for extended periods. Its internal structure typically forms a relatively sealed cavity to protect core components such as the light source and circuit board. However, during vehicle operation, changes in external temperature (such as summer sun exposure or winter low temperatures) or the heat generated by the lamp itself cause internal gas expansion and contraction, resulting in drastic pressure fluctuations within the cavity. 1. When the pressure is too high, it compresses the sealing structure between the lamp cover and the lamp housing, accelerating the aging of the sealing strips and widening the sealing gaps. This allows external moisture and dust to easily penetrate, potentially causing short circuits in the light source, corrosion of the circuit board, and shortening the lamp assembly's lifespan. 2. When the pressure is too low, atmospheric pressure compresses the lamp cover, causing deformation, affecting the lighting path, and in severe cases, even causing the lamp cover to crack. Existing automotive rear combination lamp assemblies mostly rely on passive sealing structures to resist pressure changes, lacking active pressure regulation mechanisms. This makes it impossible to maintain stable internal pressure, resulting in a generally short lifespan, requiring frequent replacements, increasing operating costs for car owners, and posing safety hazards. Utility Model Content

[0003] The purpose of this invention is to address the above-mentioned problems by providing a constant-pressure, long-life automotive rear combination lamp assembly with automatic gas pressure adjustment.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A constant-pressure, long-life automotive rear combination lamp assembly with automatic gas pressure regulation includes a lamp body assembly. The lamp body assembly is formed by fastening a lamp housing and a lamp cover together. The lamp housing and the lamp cover are sealed together by a sealing strip, forming a sealed cavity. A light source assembly is disposed inside the sealed cavity. The light source assembly includes LED beads, a circuit board, and a heat sink. The heat sink is attached to the inner wall of the lamp housing. The lamp body assembly is provided with an automatic pressure regulating mechanism for real-time adjustment of the gas pressure inside the sealed cavity. The automatic pressure regulating mechanism includes a pressure sensor, a temperature sensor, a controller, an exhaust assembly, and a gas inlet assembly. The pressure sensor, temperature sensor, and controller are detachably mounted on the front side of the lamp housing, and the exhaust assembly and the gas inlet assembly are mounted on the rear side of the lamp housing.

[0006] In the aforementioned constant-pressure long-life automotive rear combination lamp assembly with automatically adjustable gas pressure, one end of the pressure sensor extends into the sealed cavity, and the pressure sensor is used to detect the real-time pressure value inside the cavity.

[0007] In the aforementioned constant-pressure long-life automotive rear combination lamp assembly with automatic gas pressure adjustment, the temperature sensor and the pressure sensor are arranged adjacent to each other, and the temperature sensor is used to detect the real-time temperature value inside the sealed cavity.

[0008] In the aforementioned constant-pressure, long-life automotive rear combination lamp assembly with automatic gas pressure adjustment, the controller is electrically connected to the pressure sensor and the temperature sensor via wires.

[0009] In the aforementioned constant pressure long-life automotive rear combination lamp assembly with automatically adjustable gas pressure, the exhaust component includes an exhaust valve and an exhaust channel. The exhaust valve is fixed to the side wall of the lamp housing, and one end of the exhaust channel is connected to a sealed cavity, while the other end is connected to the outside through the exhaust valve.

[0010] In the aforementioned constant pressure long-life automotive rear combination lamp assembly with automatically adjustable gas pressure, the gas replenishment component includes a gas replenishment channel and a micro air pump. The micro air pump is fixed to the outside of the lamp housing. One end of the gas replenishment channel is connected to the micro air pump through a drying filter, and the other end is connected to a sealed cavity. The micro air pump is electrically connected to a controller.

[0011] In the aforementioned constant pressure long-life automotive rear combination lamp assembly with automatic gas pressure adjustment, the front side of the lamp cover is provided with mounting holes for installing a pressure sensor, a temperature sensor, and a controller.

[0012] In the aforementioned constant pressure long-life automotive rear combination lamp assembly with automatically adjustable gas pressure, a mounting plate is fixedly installed in the mounting hole, and the two sides of the mounting plate are fixed to the lamp housing by screws.

[0013] In the aforementioned constant pressure long-life automotive rear combination lamp assembly with automatic gas pressure adjustment, the pressure sensor, temperature sensor, and controller are fixedly mounted on the mounting plate.

[0014] In the aforementioned constant pressure long-life automotive rear combination lamp assembly with automatic gas pressure adjustment, the controller is also electrically connected to an alarm module, which is an LED indicator. The alarm module is triggered when the pressure sensor detects that the pressure exceeds the standard range and the pressure regulating component malfunctions.

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] 1. This utility model, by setting an automatic pressure regulating mechanism, can sense the pressure changes in the sealed cavity in real time, and actively regulate the gas pressure in the cavity through the coordinated work of the exhaust component and the air supply component, so that it is always maintained within a safe range. This effectively avoids problems such as sealing structure failure, lamp cover deformation or cracking caused by pressure fluctuations, and significantly extends the service life of the automotive rear combination lamp assembly.

[0017] 2. The automatic pressure regulating mechanism of this utility model adopts a modular design, and each component can be independently disassembled and replaced, facilitating later maintenance. Simultaneously, by arranging the pressure sensor and temperature sensor adjacent to each other, pressure and temperature data within the chamber can be acquired synchronously, providing the controller with a more accurate basis for pressure regulation, further improving pressure regulation efficiency and reliability. The addition of an alarm module provides dual protection; when the automatic pressure regulating mechanism malfunctions, it can promptly remind the driver to check and repair via LED indicator lights, reducing driving safety hazards.

[0018] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the exploded structure of this utility model.

[0020] Figure 2 This is an exploded structural diagram from another perspective of this utility model.

[0021] Figure 3 This is a schematic diagram of the back structure of this utility model.

[0022] Figure 4 This is a front structural diagram of the present invention.

[0023] In the diagram: 1. Lamp body assembly; 2. Lamp housing; 3. Lamp shade; 4. Sealing strip; 5. Light source assembly; 6. LED beads; 7. Circuit board; 8. Heat sink; 9. Pressure sensor; 10. Temperature sensor; 11. Controller; 12. Exhaust assembly; 13. Air supply assembly; 14. Exhaust valve; 15. Exhaust channel; 16. Air supply channel; 17. Miniature air pump; 18. Mounting hole; 19. Mounting plate; 20. Alarm module. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figure 1-4As shown, a constant-pressure, long-life automotive rear combination lamp assembly with automatic gas pressure adjustment includes a lamp body assembly 1, which is formed by fastening a lamp housing 2 and a lamp cover 3. The lamp housing 2 and the lamp cover 3 are sealed by a sealing strip 4, forming a sealed cavity inside the lamp housing 2 and the lamp cover 3. A light source assembly 5 is disposed inside the sealed cavity. The light source assembly 5 includes LED beads 6, a circuit board 7, and a heat sink 8. The heat sink 8 is attached to the inner wall of the lamp housing 2. The lamp body assembly 1 is provided with an automatic pressure regulating mechanism for real-time adjustment of the gas pressure inside the sealed cavity. The automatic pressure regulating mechanism includes a pressure sensor 9, a temperature sensor 10, a controller 11, an exhaust assembly 12, and a gas inlet assembly 13. The pressure sensor 9, the temperature sensor 10, and the controller 11 are detachably mounted on the front side of the lamp cover 3, and the exhaust assembly 12 and the gas inlet assembly 13 are mounted on the rear side of the lamp housing 2.

[0026] Furthermore, one end of the pressure sensor 9 extends into the sealed cavity, and the pressure sensor 9 is used to detect the real-time pressure value inside the cavity.

[0027] In this embodiment, the pressure sensor 9 can accurately capture minute pressure changes within the sealed cavity and convert the detected real-time pressure value into an electrical signal. This electrical signal is rapidly transmitted to the controller 11. Upon receiving the signal, the controller 11 performs judgment and analysis based on a preset pressure range. When the pressure within the sealed cavity exceeds the normal range, the controller 11 immediately issues a command to control the exhaust assembly 12 or the air supply assembly 13 to perform corresponding operations.

[0028] Furthermore, the temperature sensor 10 and the pressure sensor 9 are arranged adjacent to each other. The temperature sensor 10 is used to detect the real-time temperature value inside the sealed cavity. The controller 11 is electrically connected to the pressure sensor 9 and the temperature sensor 10 respectively through wires.

[0029] In this embodiment, the temperature sensor 10 can quickly and accurately detect subtle temperature fluctuations within the sealed cavity and convert the detected real-time temperature value into a corresponding electrical signal. This electrical signal is also promptly transmitted to the controller 11. Upon receiving the temperature signal, the controller 11 combines it with the pressure signal from the pressure sensor for comprehensive analysis. By making a combined judgment based on both, the controller can more accurately control the working state of the sealed cavity.

[0030] Furthermore, the exhaust assembly 12 includes an exhaust valve 14 and an exhaust channel 15. The exhaust valve 14 is fixed to the side wall of the lamp housing 2, and one end of the exhaust channel 15 is connected to the sealed cavity, while the other end is connected to the outside through the exhaust valve 14.

[0031] In this embodiment, the exhaust valve 14 can be opened quickly when the pressure in the sealed cavity exceeds the normal range, allowing gas to be discharged to the outside through the exhaust channel 15, thereby effectively reducing the pressure in the sealed cavity.

[0032] Furthermore, the air replenishment component 13 includes an air replenishment channel 16 and a miniature air pump 17. The miniature air pump 17 is fixed to the outside of the lamp housing 2. One end of the air replenishment channel 16 is connected to the miniature air pump 17 through a drying filter, and the other end is connected to a sealed cavity. The miniature air pump 17 is electrically connected to the controller 11.

[0033] In this embodiment, when the pressure inside the sealed cavity is too low, the controller 11 sends a command to the micro air pump 17, which then starts and pumps dried and filtered air into the sealed cavity through the air supply channel 16 to increase the pressure inside the cavity. The drying filter effectively prevents moisture and impurities from entering the sealed cavity, ensuring the stability of the environment inside the cavity.

[0034] Furthermore, the front side of the lamp cover 3 is provided with mounting holes 18 for mounting pressure sensor 9, temperature sensor 10 and controller 11. Mounting plate 19 is fixedly installed in the mounting holes 18. The two sides of the mounting plate 19 are fixed to the lamp housing 2 by screws. The pressure sensor 9, temperature sensor 10 and controller 11 are fixedly installed on the mounting plate 19.

[0035] In this embodiment, the mounting hole 18 provides a stable and convenient mounting position for the pressure sensor 9, temperature sensor 10, and controller 11. The tight connection between the mounting plate 19 and the lamp housing 2 ensures the stability and reliability of these critical components during vehicle operation. This design also facilitates subsequent maintenance and replacement, improving the maintainability and lifespan of the automotive rear combination lamp assembly. The pressure sensor 9 and temperature sensor 10 can monitor pressure and temperature changes within the sealed cavity in real time, providing accurate data support to the controller 11, thereby enabling more precise gas pressure regulation.

[0036] Furthermore, the controller 11 is also electrically connected to an alarm module 20, which is an LED indicator. The alarm module 20 is triggered when the pressure sensor 9 detects that the pressure exceeds the standard range and the pressure regulating component malfunctions.

[0037] In this embodiment, the alarm module 20 can promptly issue a conspicuous light signal alarm when the pressure sensor 9 detects abnormal pressure and the pressure regulating component fails to work properly, so that the driver can notice the gas pressure problem inside the rear combination lamp assembly at the first time and avoid damage to the lamp assembly or other safety hazards caused by abnormal pressure.

[0038] The working principle of this utility model is as follows:

[0039] When the automotive rear combination lamp assembly is in operation, the pressure and temperature within the sealed cavity fluctuate due to environmental changes and the lamp's own operation. Pressure sensor 9 monitors the pressure within the sealed cavity in real time, and temperature sensor 10 monitors the temperature within the sealed cavity in real time, converting the detected pressure and temperature signals into electrical signals and transmitting them to controller 11. Upon receiving the signals, controller 11 performs a comprehensive judgment and analysis based on preset pressure and temperature ranges. If the pressure within the sealed cavity exceeds the normal range, controller 11 will control the exhaust assembly 12 or the air supply assembly 13 to operate according to the pressure level. When the pressure is too high, exhaust valve 14 opens, allowing gas within the sealed cavity to be discharged to the outside through exhaust channel 15, reducing the pressure within the cavity; when the pressure is too low, controller 11 controls the micro air pump 17 to start, pumping dried and filtered air into the sealed cavity through air supply channel 16, increasing the pressure within the cavity. Simultaneously, the temperature signal from temperature sensor 10 assists controller 11 in more accurately judging the operating status of the sealed cavity, ensuring the accuracy of gas pressure regulation. If the pressure regulating component malfunctions and cannot regulate the pressure normally when the pressure is abnormal, the controller 11 will trigger the alarm module 20, and the LED indicator will light up to remind the driver to deal with it in time, so as to ensure the normal operation and service life of the rear combination light assembly of the vehicle.

[0040] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.

[0041] Although this document frequently uses terms such as 1. lamp body assembly; 2. lamp housing; 3. lampshade; 4. sealing strip; 5. light source assembly; 6. LED beads; 7. circuit board; 8. heat sink; 9. pressure sensor; 10. temperature sensor; 11. controller; 12. exhaust assembly; 13. air supply assembly; 14. exhaust valve; 15. exhaust channel; 16. air supply channel; 17. miniature air pump; 18. mounting hole; 19. mounting plate; 20. alarm module, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A constant-pressure, long-life automotive rear combination lamp assembly with automatically adjustable gas pressure, comprising a lamp body assembly (1), characterized in that, The lamp body assembly (1) is formed by fastening a lamp housing (2) and a lamp shade (3). The lamp housing (2) and the lamp shade (3) are sealed by a sealing strip (4). The lamp housing (2) and the lamp shade (3) form a sealed cavity. A light source assembly (5) is provided inside the sealed cavity. The light source assembly (5) includes LED beads (6), a circuit board (7) and a heat sink (8). The heat sink (8) is attached to the inner wall of the lamp housing (2). An automatic pressure regulating mechanism for real-time adjustment of the gas pressure in the sealed cavity is provided on the lamp body assembly (1). The automatic pressure regulating mechanism includes a pressure sensor (9), a temperature sensor (10), a controller (11), an exhaust assembly (12) and a gas replenishment assembly (13). The pressure sensor (9), the temperature sensor (10) and the controller (11) are detachably installed on the front side of the lamp shade (3). The exhaust assembly (12) and the gas replenishment assembly (13) are installed on the rear side of the lamp housing (2).

2. The constant-pressure, long-life automotive rear combination lamp assembly with automatically adjustable gas pressure according to claim 1, characterized in that, One end of the pressure sensor (9) extends into the sealed cavity, and the pressure sensor (9) is used to detect the real-time pressure value inside the cavity.

3. The constant-pressure, long-life automotive rear combination lamp assembly with automatically adjustable gas pressure according to claim 2, characterized in that, The temperature sensor (10) is arranged adjacent to the pressure sensor (9), and the temperature sensor (10) is used to detect the real-time temperature value inside the sealed cavity.

4. The constant-pressure, long-life automotive rear combination lamp assembly with automatically adjustable gas pressure according to claim 3, characterized in that, The controller (11) is electrically connected to the pressure sensor (9) and the temperature sensor (10) respectively via wires.

5. The constant-pressure, long-life automotive rear combination lamp assembly with automatically adjustable gas pressure according to claim 4, characterized in that, The exhaust assembly (12) includes an exhaust valve (14) and an exhaust channel (15). The exhaust valve (14) is fixed to the side wall of the lamp housing (2). One end of the exhaust channel (15) is connected to the sealed cavity, and the other end is connected to the outside through the exhaust valve (14).

6. The constant-pressure, long-life automotive rear combination lamp assembly with automatically adjustable gas pressure according to claim 5, characterized in that, The air replenishment component (13) includes an air replenishment channel (16) and a micro air pump (17). The micro air pump (17) is fixed to the outside of the lamp housing (2). One end of the air replenishment channel (16) is connected to the micro air pump (17) through a drying filter, and the other end is connected to a sealed cavity. The micro air pump (17) is electrically connected to the controller (11).

7. The constant-pressure, long-life automotive rear combination lamp assembly with automatically adjustable gas pressure according to claim 6, characterized in that, The lampshade (3) has mounting holes (18) on the front side for mounting pressure sensor (9), temperature sensor (10) and controller (11).

8. The constant-pressure, long-life automotive rear combination lamp assembly with automatically adjustable gas pressure according to claim 7, characterized in that, An mounting plate (19) is fixedly installed in the mounting hole (18), and the two sides of the mounting plate (19) are fixed to the lamp housing (2) by screws.

9. The constant-pressure, long-life automotive rear combination lamp assembly with automatically adjustable gas pressure according to claim 8, characterized in that, The pressure sensor (9), temperature sensor (10), and controller (11) are fixedly mounted on the mounting plate (19).

10. The constant-pressure, long-life automotive rear combination lamp assembly with automatically adjustable gas pressure according to claim 9, characterized in that, The controller (11) is also electrically connected to an alarm module (20), which is an LED indicator. The alarm module (20) is triggered when the pressure sensor (9) detects that the pressure exceeds the standard range and the pressure regulating component fails.

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