HUD optical sensor assembly

Abstract

The utility model belongs to an optical path propagation mode, and particularly relates to an HUD optical sensor assembly. An HUD optical sensor assembly comprises a mounting shell and an optical sensor mechanism connected with the mounting shell, and through the arrangement of a dustproof film, a large lens, a small lens, an optical sensor PCBA and a PCBA, the light intensity of sunlight can be detected, and an HUD can be turned off in time to achieve the purpose of protecting a display screen.

Description

Technical Field

[0001] The utility model belongs to a light path propagation method, and specifically relates to a HUD optical sensor component. Background Art

[0002] The primary function of a HUD is to project important vehicle information (such as speed and navigation) directly onto the windshield in front of the driver, allowing the driver to access this information without having to look down at the instrument panel. This design helps reduce the driver's gaze, thereby reducing the risk of accidents caused by distraction.

[0003] A Chinese patent (publication number: 209356762U) discloses a single-curved mirror AR-HUD optical path system, which uses a curved mirror to only perform a primary reflection of the image source emitted by the data transmitter, thereby achieving good image quality with a large FOV on the car's front windshield.

[0004] When the intensity of sunlight is too strong, it can easily damage the HUD display. At this time, a device that can detect light intensity is needed. When the intensity of sunlight is too strong, the HUD can be turned off in time to protect the display. Utility Model Content

[0005] The present invention is designed to solve the above-mentioned problem and aims to provide a HUD optical sensor assembly capable of detecting light intensity. To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows:

[0006] The utility model provides a HUD optical sensor component, which has the following characteristics: the component comprises a mounting shell and an optical sensor mechanism connected with the mounting shell.

[0007] The optical sensor mechanism includes a mounting plate and a small lens. The mounting plate is connected to the mounting shell inside the mounting shell. The side of the mounting plate away from the mounting shell is connected to the optical sensor PCBA. The optical sensor PCBA circuit is connected to the PCBA. The small lens is arranged on the back of the optical sensor PCBA. An optical sensor chip is arranged on the optical sensor PCBA. A large lens is arranged on one side of the small lens. The mirror surface of the small lens is opposite to the mirror surface of the large lens. The bottom of the mounting shell is provided with a dustproof film.

[0008] The mounting shell is connected with a positioning plate, the positioning plate is arranged at both ends of the dustproof film and extends to the outside of the mounting shell, and the large lens is arranged on one side of the positioning plate.

[0009] The mounting shell is connected to a first connecting plate, a display screen is provided on one side of the first connecting plate, and a through hole is opened in the first connecting plate, and the through hole is located below the display screen.

[0010] The positioning plate is a right-angle structure, and reinforcing ribs are provided at the connection between the mounting shell and the positioning plate.

[0011] A reinforcing plate is connected to a side of the first connecting plate close to the display screen, and the reinforcing plates are arranged on the first connecting plate at equal intervals.

[0012] The mounting shell is provided with a positioning pin, and the mounting plate is sleeved on the positioning pin.

[0013] The mirror surface of the large lens is a curved surface.

[0014] The optical sensor PCBA is arranged at the exact center position on the main axis of the counter-light path on the back side of the small lens.

[0015] One side of the dustproof film is the incident end for sunlight. Sunlight is reflected by the large lens and reaches the small lens. Some of the sunlight passes through the small lens and illuminates the optical sensor chip, while the remaining part is reflected and reaches the display screen. The technical effect of this utility model is as follows: the optical sensor PCBA and optical sensor chip are arranged on the back of the small lens. External sunlight passes through the dustproof film to the large lens. The large lens reflects the sunlight to the small lens. The sunlight passes through the small lens and illuminates the optical sensor PCBA and optical sensor chip. The sunlight intensity is detected. When the sunlight intensity is too high, the HUD is turned off to protect the display screen. As a simple, fast, reliable and efficient layout method, this utility model can be applied to the HUD structures of different types of vehicles and has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] This manual includes the following drawings, which show the following contents:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection position between the small lens and the first connecting plate of the utility model;

[0019] Figure 3 This is a schematic diagram of the optical sensor PCBA connection position of the utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This is a sunlight propagation circuit diagram of the present utility model.

[0022] The following are marked in the figure: 1. Mounting shell; 2. Optical sensor mechanism; 201. Mounting plate; 202. Small lens; 203. Optical sensor PCBA; 204. PCBA; 205. Optical sensor chip; 206. Large lens; 207. Dust-proof film; 3. Positioning plate; 301. Reinforcement rib; 4. First connecting plate; 401. Reinforcement plate; 5. Display screen; 6. Positioning pin. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the specific implementation methods of the present invention through the description of the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and to facilitate their implementation.

[0024] like Figures 1 to 5 As shown, a HUD optical sensor assembly includes a mounting housing 1 and an optical sensor mechanism 2 connected to the mounting housing 1. The optical sensor mechanism 2 detects sunlight intensity and shuts off the HUD when the sunlight intensity exceeds a certain value, protecting the display screen 5 from damage caused by excessive light.

[0025] The optical sensor mechanism 2 includes a mounting plate 201 and a small lens 202. The mounting plate 201 is connected to the mounting shell 1 by bolts inside the mounting shell 1. The mounting plate 201 is used to connect the optical sensor PCBA203. The optical sensor PCBA203 is connected to the side of the mounting plate 201 away from the mounting shell 1. The optical sensor PCBA203 is connected to the PCBA204 by circuit. The small lens 202 is arranged on the back of the optical sensor PCBA203. An optical sensor chip 205 is arranged on the optical sensor PCBA203. A large lens 206 is arranged on one side of the small lens 202. The mirror surface of the small lens 202 is opposite to the mirror surface of the large lens 206. A dustproof film 207 is set at the bottom of the mounting shell. Sunlight passes through dustproof film 207 and is reflected by large lens 206 before reaching small lens 202. A portion of the light beam that reaches small lens 202 impinges on optical sensor chip 205 and the optical sensor connector. These components detect sunlight intensity. The optical sensor in optical sensor PCBA 203 detects light intensity inside and outside the vehicle. PCBA 204 controls the HUD's on and off state, adjusting the HUD based on the light intensity. Another portion of the light beam is reflected by small lens 205 and impinges on display screen 5. If the light intensity is too strong, the HUD is disabled to protect the display screen.

[0026] Mounting housing 1 is connected to positioning plates 3, which are positioned at both ends of dustproof film 207 and extend outside of mounting housing 1. Large lens 206 is positioned on one side of positioning plates 3. Positioning plates 3 provide a placement for large lens 206, ensuring that sunlight passing through dustproof film 207 can fully illuminate large lens 206.

[0027] The mounting housing 1 is connected to a first connecting plate 4, with a display screen 5 mounted on one side. This first connecting plate 4 provides a mounting location for the display screen 5, which can display driving information. Below the display screen 5, a through hole 402 is formed in the first connecting plate 4. Small lenses 202 reflect sunlight, which then passes through the through hole 402 and reaches the display screen 5.

[0028] The positioning plate 3 is a right-angle structure, which can better provide a suitable height position for the large lens 206. A reinforcing rib 301 is provided at the connection between the mounting shell 1 and the positioning plate 3. The setting of the reinforcing rib 301 can strengthen the connection strength between the positioning plate 3 and the mounting shell 1.

[0029] A reinforcing plate 401 is connected to the side of the first connecting plate 4 close to the display screen 5. The reinforcing plates 401 are evenly spaced on the first connecting plate 4. The reinforcing plates 401 can strengthen the strength of the first connecting plate 4. The evenly spaced first connecting plates 4 can make the first connecting plate 4 more evenly stressed.

[0030] The mounting shell 1 is provided with a positioning pin 6, and the mounting plate 201 is provided with a hole, and is sleeved on the positioning pin 6 through the through hole. The positioning pin 6 can fix the position of the mounting plate 201.

[0031] The large lens 206 has a curved surface, which can better reflect sunlight to the small lens 202.

[0032] Sunlight passes through dust-proof film 207 and is reflected by large lens 206 before reaching small lens 202. Some of the sunlight passes through small lens 202 and strikes the optical sensor chip, while the remaining portion is reflected and reaches display screen 5. Optical sensor PCBA 203 is located at the exact center of the main axis of backlight path 11 on the back of the small lens, enabling it to capture the effective infrared intensity of sunlight.

[0033] Functions and Effects of the Embodiments

[0034] Sunlight passes through dustproof film 207 and is reflected by large lens 206 before reaching small lens 202. A portion of the light beam that reaches small lens 202 impinges on optical sensor chip 205 and the optical sensor connector. These detect the intensity of the sunlight. The optical sensor in optical sensor PCBA 203 detects the light intensity inside and outside the vehicle, allowing PCBA 204 to adjust the HUD accordingly. Another portion of the light beam is reflected by small lens 205 and impinges on display screen 5. If the light is too strong, the HUD is disabled to protect display screen 5.

[0035] The above description of the present invention is provided as an example, in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described method. Any non-substantial improvements made using the method concepts and technical solutions of the present invention, or any application of the above-described concepts and technical solutions of the present invention to other situations without modification, are all within the scope of protection of the present invention.

Claims

1. A HUD optical sensor assembly, characterized in that: The optical sensor mechanism (2) comprises a mounting shell (1) and an optical sensor mechanism (2) connected to the mounting shell (1), wherein the optical sensor mechanism (2) comprises a mounting plate (201) and a small lens (202), wherein the mounting plate (201) is connected to the mounting shell (1) in the mounting shell (1), wherein the side of the mounting plate (201) away from the mounting shell (1) is connected to an optical sensor PCBA (203), wherein the optical sensor PCBA (203) is connected to a PCBA (204), wherein the small lens (202) is arranged on the back of the optical sensor PCBA (203), wherein an optical sensor chip (205) is arranged on the optical sensor PCBA (203), wherein a large lens (206) is arranged on one side of the small lens (202), wherein the mirror surface of the small lens (202) is opposite to the mirror surface of the large lens (206), and wherein a dustproof film (207) is arranged on the bottom of the mounting shell (1).

2. The HUD optical sensor assembly according to claim 1, characterized in that: The mounting shell (1) is connected to a positioning plate (3), the positioning plate (3) is arranged at both ends of the dustproof film (207) and extends outside the housing of the mounting shell (1), and the large lens (206) is arranged on one side of the positioning plate (3).

3. The HUD optical sensor assembly according to claim 2, wherein: The mounting shell (1) is connected to a first connecting plate (4), a display screen (5) is provided on one side of the first connecting plate (4), and a through hole (402) is opened in the first connecting plate (4), and the through hole (402) is located below the display screen (5).

4. The HUD optical sensor assembly according to claim 3, wherein: The positioning plate (3) is a right-angle structure, and a reinforcing rib (301) is provided at the connection between the mounting shell (1) and the positioning plate (3).

5. The HUD optical sensor assembly according to claim 4, characterized in that: A reinforcing plate (401) is connected to a side of the first connecting plate (4) close to the display screen (5), and the reinforcing plates (401) are arranged at equal intervals on the first connecting plate (4).

6. The HUD optical sensor assembly according to claim 5, characterized in that: The mounting shell (1) is provided with a positioning pin (6), and the mounting plate (201) is sleeved on the positioning pin (6).

7. The HUD optical sensor assembly according to claim 6, characterized in that: The mirror surface of the large lens (206) is a curved surface.

8. The HUD optical sensor assembly according to claim 7, wherein: The optical sensor PCBA (203) is arranged at the exact center position on the main axis of the reverse light path on the back side of the small lens (202).

9. The HUD optical sensor assembly according to claim 8, characterized in that: One side of the dustproof film (207) is the incident end of sunlight. The sunlight is reflected by the large lens (206) and reaches the small lens (202). A part of the sunlight passes through the small lens (202) and irradiates the optical sensor chip (205), and the other part is reflected and reaches the display screen (5).

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