CN-224218458-U - Light source assembly with assembly positioning structure and contact type image sensor thereof

CN224218458UCN 224218458 UCN224218458 UCN 224218458UCN-224218458-U

Abstract

The utility model discloses a light source component with an assembly positioning structure and a contact type image sensor thereof, wherein the light source component comprises a white shell, a light guide column and an LED lamp panel component, the light guide column is inserted into the white shell and is provided with the LED lamp panel component, the two ends of the white shell are provided with anti-falling parts, the white shell and the anti-falling parts surround the two ends of the light guide column, the edge of a light outlet is distributed with a plurality of barbs, the barbs block the edge of the light guide column, one end of the light guide column is provided with a stop part, the stop part protrudes outwards relative to the side surface of the light guide column, one light inlet of the white shell is an insertion end, the insertion end is provided with a clamping groove, the stop part can be embedded into the clamping groove, the stop part and the clamping groove at the end are positioned to ensure that the light guide column is installed in place, the barbs can prevent the middle of the light guide column from arching and bending to be separated from the white shell, and the light source component has good stability. The optimized light source assembly is applied to the contact type image sensor, the assembly is convenient, and the manufactured contact type image sensor has good light uniformity and no bright point fluctuation curve.

Inventors

WANG JUNDU
XIE YANZHONG

Assignees

敦南科技（无锡）有限公司

Dates

Publication Date: 20260508
Application Date: 20250516

Claims (6)

1. The utility model provides a light source subassembly with equipment location structure, includes white shell (1), leaded light post (2) and LED lamp plate subassembly (3), bai Ke (1) and leaded light post (2) are the strip structure of extension on the length direction, bai Ke (1) have long light outlet (11), the both ends of Bai Ke (1) have light inlet (12), leaded light post (2) insert in white shell (1) through light inlet (12), LED lamp plate subassembly (3) are installed to the tip of white shell (1), a serial communication port, the both ends of Bai Ke (1) have anticreep portion (13), and light outlet (11) are located between anticreep portion (13) at both ends, the both ends of leaded light post (2) are encircleed to Bai Ke (1) and anticreep portion (13), the edge evenly distributed of light outlet (11) has a plurality of barb (14), the edge of barb (14) keep off light guide post (2).
2. The light source assembly with the assembly positioning structure according to claim 1, wherein one end of the light guide column (2) is provided with a stop portion (21), the stop portion (21) protrudes outwards relative to the side surface of the light guide column (2), one light inlet (12) of the Bai Ke (1) is an insertion end, the insertion end is provided with a clamping groove (15), and the stop portion (21) can be embedded into the clamping groove (15).
3. The light source assembly with the assembly positioning structure according to claim 2, wherein the two stopping parts (21) are arranged in two positions, the two stopping parts (21) are arranged in bilateral symmetry relative to the axial center line of the light guide column (2), and the two clamping grooves (15) are correspondingly arranged.
4. A light source assembly with an assembling and positioning structure according to claim 3, wherein the light guide column (2) is assembled in Bai Ke (1), one side of the light outlet (11) is lower than the light guide column (2), the other side of the light outlet (11) is higher than the light guide column (2), and the barbs (14) are distributed on one side of the light outlet (11) higher than the light guide column (2).
5. A contact image sensor, characterized by comprising a housing (4), an optical lens (5), a substrate (6), and the light source assembly according to any one of claims 1 to 4, wherein the optical lens (5) is vertically mounted on the housing (4), the substrate (6) is mounted at the bottom of the housing (4), an image chip receiving sensor (7) is disposed on the substrate (6), and the image chip receiving sensor (7) is located under the optical lens (5), and the light source assembly is mounted on the housing (4).
6. The contact image sensor of claim 5, wherein the light source assembly is obliquely arranged relative to the optical lens (5), one side of the light outlet (11) is lower than the light guide column (2), the other side of the light outlet (11) is higher than the light guide column (2), the barbs (14) are distributed on one side of the light outlet (11) higher than the light guide column (2), and the side of the barbs (14) is closer to the optical lens (5).

Description

Light source assembly with assembly positioning structure and contact type image sensor thereof Technical Field The utility model relates to the technical field of sensor equipment, in particular to a light source assembly with an assembly positioning structure and a contact type image sensor thereof. Background The LED light source module shines on the object to be detected in the internal structure of the contact image sensor, so that the image information received by the sensor is clearer and more complete when the image is fed back to the sensor. When the Light source is normally lighted, the high-brightness LED Light source is needed to make the object to be measured effectively, clearly and brightly show, so that a Light Guide (or Light Guide column) is arranged in the general Light source framework, a white shell workpiece is arranged in the Light Guide column, the white shell is a component for protecting the Light Guide column and increasing the luminous benefit of the Light Guide column, and then an LED lamp panel is assembled at one end or two ends of the white shell workpiece to form a complete Light source module with a high luminous function. The white shell and the light guide column are separated components, the assembly mode is that the side edge of the light guide column is pushed into the white shell, the LED lamp panel is assembled at the end part of the light guide column, when the light guide column is assembled in a production line, no matter the light guide column is manually moved to the next station for processing, the white shell and the light guide column slide easily, two workpieces are displaced to enable the optical representation curvature to deviate, if the light guide column slides, the light guide column does not reach the left end part of the white shell, the left brightness is reduced, the light uniformity is uneven, as shown in fig. 1, the light guide column is easy to separate from the white shell after being bent, as shown in fig. 2, and if the light guide column is bent, the middle arch is separated from the white shell, the light uniformity is insufficient, as shown in fig. 3. Therefore, the architecture of the LED light source module needs to be further optimized, so that the process is improved, and the product yield is improved. Disclosure of utility model In order to solve the problems, the utility model provides a light source assembly with an assembly positioning structure, which ensures that a light guide column and a white shell are assembled in place and prevents the light guide column from bending to be separated from the white shell. According to one aspect of the utility model, there is provided a light source assembly with an assembly positioning structure, comprising a white shell, a light guide column and an LED lamp panel assembly, wherein the white shell and the light guide column are of strip-shaped structures extending along the length direction, the white shell is provided with a long light outlet, two ends of the white shell are provided with light inlets, the light guide column is inserted into the white shell through the light inlets, the LED lamp panel assembly is mounted at the end of the white shell, two ends of the white shell are provided with anti-falling parts, the light outlet is positioned between the anti-falling parts at the two ends, the white shell and the anti-falling parts surround the two ends of the light guide column, the edges of the light outlet are uniformly distributed with a plurality of barbs, and the barbs block the edges of the light guide column. Therefore, the side of the light guide column slides into the white shell, the two ends of the light guide column are limited in the white shell through the anti-falling parts, and barbs uniformly distributed on the white shell can prevent the middle part of the light guide column from bending and separating from the white shell. In some embodiments, one end of the light guide column is provided with a stop portion, the stop portion protrudes outwards relative to the side face of the light guide column, one light inlet of the white shell is an insertion end, the insertion end is provided with a clamping groove, and the stop portion can be embedded into the clamping groove. Therefore, after the light guide column slides into the white shell, the stop part of the light guide column is embedded into the clamping groove of the white shell, so that on one hand, the light guide column can be prevented from sliding in the length direction relative to the white shell, and on the other hand, the light guide column can be prevented from moving in the width direction relative to the white shell, and the light guide column is ensured to be installed in place. In some embodiments, the two stopping portions are arranged in a bilateral symmetry manner relative to the axial center line of the light guide column, and the two clamping grooves are correspondingly arranged in two positions. The