DOUBLE-ROW MATRIX ILLUMINATION MODULE AND AUXILIARY ILLUMINATION METHOD THEREOF

• US 20200132268A1
• Filed: 10/16/2019
• Published: 04/30/2020
• Est. Priority Date: 10/25/2018
• Status: Active Grant

• Current Assignee: HASCO Vision Technology Co., Ltd. (City of Shanghai)
• Original Assignee: HASCO Vision Technology Co., Ltd. (City of Shanghai)
• Inventors: ZHANG, Dapan, SUN, Xiaofen, QIU, Zhiping
• Granted Patent: US 11,028,987 B2
• Time in Patent Office: Days
• CPC Class Codes: B60Q 1/1415 Dimming circuits
• CPC Class Codes: F21S 41/143 the main emission direction of the LED being parallel to the optical axis of the illuminating device
• CPC Class Codes: F21S 41/153 arranged in a matrix
• CPC Class Codes: F21S 41/19 Attachment of light sources or lamp holders achieving variable light distribution by movable light sources F21S41/657
• CPC Class Codes: F21S 41/24 Light guides
• CPC Class Codes: F21S 41/255 Lenses with a front view of circular or truncated circular outline
• CPC Class Codes: F21S 41/29 Attachment thereof for achieving variable light distribution F21S41/63
• CPC Class Codes: F21S 41/322 the reflector using total internal reflection
• CPC Class Codes: F21S 41/663 by switching light sources by switching incandescent light sources F21S41/162
• CPC Class Codes: F21W 2102/14 having vertical cut-off lines; specially adapted for adaptive high beams, i.e. wherein the beam is broader but avoids glaring other road users

Abstract

The invention relates to a double-row matrix illumination module, wherein a light source part comprises an LED circuit board and a heat sink that are secured to each other; a primary optical system comprises a primary optical element mounting bracket, a primary optical element press plate and an LED circuit board. Primary optical elements are all mounted on the primary optical element mounting bracket in position. The primary optical elements are consisted of two layers, wherein the upper layer is primary optical element A and the lower layer is primary optical element B. The primary optical element mounting bracket configured as a base component for mounting and positioning comprises two rows of rectangular holes for fixing light-incident ends of the primary optical element A and the primary optical element B respectively and separating the light-incident ends from each other. The invention can realize anti-dazzling high beam function, low beam follow-up steering function, high beam follow-up steering; regarded as a whole, the follow-up steering function can be realized for the high beam and the low beam, thereby improving illumination experience when steering. Structurally, the invention is simple and compact, accurate in positioning, convenient for disassembly and assembly, easy to guarantee the actual product quality.

Claims

1. A double-row matrix illumination module, wherein:

the double-row matrix illumination module comprises a light source part, a primary optical system, and a secondary projection system;

the light source part includes an LED circuit board (8) and a heat sink (9) that are secured to each other;

the primary optical system includes a primary optical element mounting bracket (4), a primary optical element press plate (5), and an LED circuit board (8). Primary optical elements are mounted on the primary optical element mounting bracket (4) in position. The primary optical elements are consisted of upper layer that is the primary optical element A (6) and lower layer that is the primary optical element B (7). The primary optical element A (6) and the primary optical element B (7) comprise a row of independent light-incidents end respectively, and each light-incident end corresponds to an LED;

the secondary projection system includes a lens (1) and a lens holder (3) that are connected to each other by a lens collar (2); and

the lens holder (3) is fixedly connected to the optical element mounting bracket (4);

the primary optical element mounting bracket (4) configured as a base component for mounting and positioning comprises two rows of rectangular holes for fixing light-incident ends of the primary optical element A (6) and the primary optical element B (7) respectively and separating the light-incident ends from each other.

2. The characteristic of the double-row matrix illumination module according to claim 1 is that the spacing ribs are arranged between the rectangular holes, and the front end surfaces of the spacing ribs are used as optical axis direction positioning surfaces of the primary optical elements to abut against the light-incident end connecting ribs (6-2), thereby preventing the primary optical elements from moving towards the LEDs;

the primary optical element mounting bracket (4) is provided with a horizontally extending platform for supporting the primary optical elements thereon and preventing the primary optical elements from moving away from the optical axis.

3. The characteristic of the double-row matrix illumination module according to claim 1 is that the primary optical element press plate (5) is in fit with the primary optical element mounting bracket (4) so as to tightly clamp the primary optical elements in the middle;

the primary optical element press plate (5) and the primary optical element mounting bracket (4) have light blocking effect.

4. The characteristic of the double-row matrix illumination module according to claim 1 is that the primary optical element press plate (5) is made up plastic material and provided with a snap structure and a first positioning pin structure on both sides.

5. The characteristic of the double-row matrix illumination module according to claim 1 is that the primary optical element press plate (5) is provided with a groove in fit with the upper edge flanges of the primary optical elements.

6. The characteristic of the double-row matrix illumination module according to claim 1 is that the primary optical element mounting bracket (4) is provided with a second positioning pin structure, and the primary optical element press plate (5) and the heat sink are provided with the corresponding positioning holes.

7. The characteristic of the double-row matrix illumination module according to claim 6 is that the positioning holes on the primary optical element press plate (5) are arranged near the both sides of the LEDs;

During installation, the positioning pins are sequentially inserted into the primary optical element press plate (5) and the heat sink, and then fastened by screws on the back of the heat sink.

8. The characteristic of the double-row matrix illumination module according to claim 1 is that the lens holder (3) is provided with four thread studs secured to the primary optical element mounting bracket (4);

the heat sink (9) is also provided with through holes at the four thread studs;

outside the lens holder (3), there are three dimming dot structures that enable the double-row matrix illumination module mounted in the lamp to adjust light vertically and horizontally.

9. The characteristic of the double-row matrix illumination module according to claim 8 is that the lens collar is a PC element with four clips that are connected with the lens holder (3) by way of clamping for fixing the lens.

10. An auxiliary illumination method of the double-row matrix illumination module according to claim 1, comprising the following auxiliary illumination modes:

A) Anti-dazzling high beam auxiliary mode;

the LEDs halfway between the primary optical element A (6) and the primary optical element B (7) are turned off, the LEDs in the middle of left halves of the primary optical element A (6) and the primary optical element B (7) are turned off, and the remaining LEDs are turned on;

B) Low beam auxiliary mode;

the LEDs of the primary optical element (7) on the right half are turned on and the remaining LEDs are turned off;

C) Low beam left-bending auxiliary mode;

the LEDs of the primary optical element (7) on the right half are turned on, the LED in the middle are turned on, the LEDs on the right side of the left half are turned on, and the remaining LEDs are turned off;

D) Low beam right-bending auxiliary mode;

the LEDs on the right side of the primary optical element (7) on the right half are turned on and the remaining LEDs are turned off.