Automobile welcome lamp

Abstract

The utility model relates to the technical field of automobile accessories, in particular to an automobile welcome lamp which comprises a surface cover, a lower cover, a character transparent piece, a light reflecting piece, a light guide piece, a PCB (printed circuit board) and a diffusion film, a sinking groove is formed in the lower cover, a step is arranged on the outer side of the sinking groove in the circumferential direction of the sinking groove, and the light reflecting piece is arranged on the surface cover. The reflecting piece, the light guide piece and the PCB are all arranged in the sinking groove, the reflecting piece is located between the light guide piece and the PCB, an LED lamp is arranged on the PCB, the reflecting piece is arranged above the PCB in a covering mode and completely shields the LED lamp, the diffusion film is arranged at the position of the step and completely covers the sinking groove, the font transparent piece is located between the surface cover and the diffusion film, and the LED lamp is arranged on the surface cover. The diffusion film is arranged on the lower cover and attached to the surface cover, and the surface cover is arranged on the lower cover in a covering mode and completely shields the diffusion film. The guest greeting lamp is simple in structure, reasonable in design, free of wiring, convenient for a user to install, good in safety, good in lighting effect, and good in experience feeling when the user uses the guest greeting lamp.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to a car welcome light. Background Technology

[0002] Car welcome lights are installed on car doors. When the driver or passenger prepares to get in the car, the welcome light illuminates the moment the door is opened; after the car is turned off, the welcome light illuminates the ground when the driver or passenger pushes the door open again, and turns off the momentarily when the door is closed. Generally, car welcome lights contain a PCB board used to control the lighting effect. However, existing welcome lights require connection to the car's infotainment system during installation, which necessitates wiring within the vehicle. This wiring requires modification of the car, potentially affecting safety, and is time-consuming and labor-intensive. Furthermore, existing car welcome lights have poor lighting performance, resulting in a poor user experience. To address these issues, the inventor has improved the structure of the car welcome light. Utility Model Content

[0003] The purpose of this utility model is to provide a car welcome light that has the advantages of simple structure, reasonable design, no wiring required, easy installation by users, good safety, good lighting effect, and good user experience, thus solving the problems mentioned in the above technical background.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a car welcome light, comprising a front cover, a lower cover, a transparent lettering component, a reflector, a light guide, a PCB board, and a diffusion film. The lower cover has a recessed groove, and a step is provided along the circumference of the recessed groove on its outer side. The reflector, light guide, and PCB board are all disposed within the recessed groove, with the reflector located between the light guide and the PCB board. An LED light is disposed on the PCB board, and the reflector covers the top of the PCB board, completely obscuring the LED light. The diffusion film is disposed at the step and completely covers the recessed groove. The transparent lettering component is located between the front cover and the diffusion film and is attached to the front cover. The front cover is disposed on the lower cover and completely obscures the diffusion film.

[0005] Specifically, the welcome light also includes a battery holder, and there are two battery holders. Both battery holders are located on the lower end face of the lower cover. Each battery holder is equipped with a battery. The battery is electrically connected to the PCB board and provides power to the PCB board.

[0006] Specifically, a battery cover is provided on the lower end face of the lower cover at the battery rack, which can open or close the battery rack.

[0007] Specifically, the transparent font component has a logo pattern, and the cover has a perforated hole that matches the logo pattern.

[0008] Specifically, the PCB board is also equipped with a main control MCU, a low-power power management circuit, an LED driver circuit, a Hall control system circuit, and a Hall sensor. The main control MCU is connected to the low-power power management circuit, the LED driver circuit, and the Hall control system circuit, respectively. The Hall sensor is connected to the Hall control system circuit, the LED driver circuit is connected to the LED light, and the low-power power management circuit is connected to the battery.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. This utility model provides a car welcome light, which includes a front cover, a lower cover, a transparent lettering component, a reflector, a light guide, a PCB board, a diffuser film, and a battery holder. The overall structure is simple and reasonably designed. By installing a battery on the battery holder, the battery provides power to the PCB board and the LED lights on the PCB board, replacing the traditional wiring power supply. This improves car safety and facilitates installation and replacement. The light emitted by the LED lights passes sequentially through the reflector, light guide, and diffuser film to reach the transparent lettering component, which has a logo pattern set on it, thus displaying the logo pattern. The welcome light has a good illumination effect. By setting a Hall sensor on the PCB board, when the car door is opened, the door moves away from the Hall sensor, and the Hall sensor transmits the signal of the door moving away to the main control MCU. The main control MCU controls the LED driver circuit to drive the LED lights to turn on. When the car door is closed, the door moves closer to the Hall sensor, and the signal of the door moving closer is transmitted to the main control MCU. The main control MCU controls the LED driver circuit to drive the LED lights to turn off, resulting in a good user experience. Attached Figure Description

[0011] Figure 1 This is an exploded view of the present invention;

[0012] Figure 2 This is a structural diagram of the present invention;

[0013] Figure 3 This is a schematic block diagram of the PCB board of this utility model;

[0014] Figure 4 This utility model relates to the main control MCU and its peripheral circuits.

[0015] Figure 5 This is a circuit diagram of the low-power power management circuit of this utility model;

[0016] Figure 6 This is a circuit diagram of the LED driver circuit of this utility model;

[0017] Figure 7 This is a circuit diagram of the Hall control system circuit of this utility model.

[0018] The reference numerals and names in the figure are as follows:

[0019] 1. Top cover; 11. Hole cutout; 2. Bottom cover; 21. Recessed groove; 22. Step; 3. Transparent lettering; 31. Logo pattern; 4. Reflector; 5. Light guide sheet; 6. PCB board; 61. LED light; 62. Main control MCU; 63. Low power management circuit; 64. LED driver circuit; 65. Hall control system circuit; 66. Hall sensor; 7. Battery holder; 8. Battery; 9. Battery cover; 10. Diffuser film. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0022] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0023] Please see Figure 1 and Figure 2 This utility model provides an embodiment of a car welcome light, which includes a front cover 1, a lower cover 2, a transparent lettering component 3, a reflector 4, a light guide 5, a PCB board 6, and a diffusion film 10. The lower cover 2 has a recessed groove 21, and a step 22 is provided along the circumference of the recessed groove 21 on its outer side. The reflector 4, light guide 5, and PCB board 6 are all disposed within the recessed groove 21, with the reflector 4 located between the light guide 5 and the PCB board 6. An LED light 61 is disposed on the PCB board 6, and the reflector 5 covers the PCB board 6, completely obscuring the LED light 61. The diffusion film 10 is disposed at the step 22, and the diffusion film 10 is recessed... The groove 21 is completely covered. The transparent lettering 3 is located between the cover 1 and the diffusion film 10 and is attached to the lower end of the cover 1. The cover 1 is placed on the lower cover 2 and completely covers the diffusion film 10. In this embodiment, the diffusion film 10 is preferably a prism diffusion film. The welcome light also includes a battery holder 7. There are two battery holders 7. Both battery holders 7 are located on the lower end of the lower cover 2. Each battery holder 7 is equipped with a battery 8. The battery 8 is electrically connected to the PCB board 6 and provides power to the PCB board 6. In this embodiment, the battery 8 is a button battery. The lower end of the lower cover 2 is provided with a battery cover 9 at the location of the battery holder 7. The battery cover 9 can open or close the battery holder 7.

[0024] Specifically, the transparent font component 3 is provided with an identification pattern 31, and the cover 1 is provided with a hollow hole 11 that matches the identification pattern 31.

[0025] Please see Figure 3 The PCB board 6 in the figure also includes a main control MCU 62, a low-power power management circuit 63, an LED driver circuit 64, a Hall control system circuit 65, and a Hall sensor 66. The main control MCU 62 is connected to the low-power power management circuit 63, the LED driver circuit 64, and the Hall control system circuit 65. The Hall sensor 66 is connected to the Hall control system circuit 65. The LED driver circuit 64 is connected to the LED lamp 61. The low-power power management circuit 63 is connected to the battery 8.

[0026] Please see Figures 4 to 7 In the diagram, U5 is the aforementioned main control MCU 62, model number HC15P013A0. Pin 1 of U5 is connected to the output of the low-power power management circuit 63, which provides power to U5. Pin 5 is connected to the Hall sensor 66. Pins 2, 3, and 6 are connected to the LED driver circuit 64. In the diagram, U4 is the aforementioned Hall sensor 66, model number UHE4913G-AE3-R.

[0027] Please refer to it again. Figures 1 to 7 When the car welcome light of this utility model is working, the light emitted by the LED light 61 passes through the reflector 4, the light guide 5, and the diffuser 10 in sequence to reach the transparent lettering part 3, illuminating the logo pattern 31 on the transparent lettering part 3. The illuminated logo pattern 31 is displayed through the hollow hole 11 on the cover 1. When the car door is opened, the car door moves away from the Hall sensor 66, so the Hall sensor 66 can transmit the signal of the car door moving away to the main control MCU 62. The main control MCU 62 controls the LED driver circuit 64 to drive the LED light 61 to turn on. When the car door is closed, the car door moves closer to the Hall sensor 66, and the signal of the car door moving closer is transmitted to the main control MCU 62. The main control MCU 62 controls the LED driver circuit 64 to drive the LED light 61 to turn off. The user experience is good.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automotive welcome light characterized by: The device includes a front cover (1), a lower cover (2), a transparent lettering component (3), a reflector (4), a light guide (5), a PCB board (6), and a diffusion film (10). The lower cover (2) has a recessed groove (21), and a step (22) is provided on the outer side of the recessed groove (21) along the circumferential direction of the recessed groove (21). The reflector (4), the light guide (5), and the PCB board (6) are all disposed in the recessed groove (21), wherein the reflector (4) is located between the light guide (5) and the PCB board (6). Between, LED lights (61) are provided on the PCB board (6), and reflectors (4) are placed on top of the PCB board (6) and completely block the LED lights (61). The diffusion film (10) is placed at the step (22) and completely covers the sink groove (21). The transparent lettering part (3) is located between the cover (1) and the diffusion film (10) and is attached to the cover (1). The cover (1) is placed on the lower cover (2) and completely blocks the diffusion film (10).

2. The courtesy lamp of claim 1, wherein: It also includes a battery rack (7), of which there are two. Both battery racks (7) are located on the lower end face of the lower cover (2). Each battery rack (7) is equipped with a battery (8). The battery (8) is electrically connected to the PCB board (6) and provides power to the PCB board (6).

3. The courtesy lamp of claim 1, wherein: The lower end face of the lower cover (2) is provided with a battery cover (9) at the battery rack (7), which can open or close the battery rack (7).

4. The courtesy lamp of claim 1, wherein: The transparent font part (3) is provided with an identification pattern (31), and the cover (1) is provided with a hollow hole (11) that matches the identification pattern (31).

5. The courtesy lamp of claim 1, wherein: The PCB board (6) is also equipped with a main control MCU (62), a low-power power management circuit (63), an LED driver circuit (64), a Hall control system circuit (65), and a Hall sensor (66). The main control MCU (62) is connected to the low-power power management circuit (63), the LED driver circuit (64), and the Hall control system circuit (65) respectively. The Hall sensor (66) is connected to the Hall control system circuit (65). The LED driver circuit (64) is connected to the LED lamp (61). The low-power power management circuit (63) is connected to the battery (8).

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