Visual detection light source and tab detection equipment

Patent metadata

Field	Value
Publication number	US-12492996-B2
Application number	US-202318349731-A
Country	US
Kind code	B2
Filing date	Jul 10, 2023
Priority date	Nov 22, 2022
Publication date	Dec 9, 2025
Grant date	Dec 9, 2025

Abstract

A visual detection light source and tab detection equipment are described. The visual detection light source is configured to irradiate a side face of a tab portion, and includes a main light source and a supplementary light source; the main light source and the supplementary light source are arc-shaped light sources, the main light source and the supplementary light source are disposed concentrically, and the main light source is disposed outside the supplementary light source; the main light source is configured to irradiate the side face of the tab portion at an inclined irradiation angle; and the supplementary light source is configured to vertically irradiate the side face of the tab portion.

First claim

What is claimed is:

1 . A visual detection light source configured to irradiate a side face of a tab portion, characterized in that the visual detection light source comprises a main light source and a supplementary light source, the main light source and the supplementary light source are arc-shaped light sources, the main light source and the supplementary light source are disposed concentrically, and the main light source is disposed outside the supplementary light source; the main light source is configured to irradiate the side face of the tab portion at an inclined irradiation angle, the inclined irradiation angle referring to an angle formed between a main direction of irradiation beams and a detected surface; and the supplementary light source is configured to vertically irradiate the side face of the tab portion.

2 . The visual detection light source according to claim 1 , wherein the inclined irradiation angle of the main light source ranges from 15° to 45°.

3 . The visual detection light source according to claim 2 , wherein the inclined irradiation angle of the main light source is 30°.

4 . The visual detection light source according to claim 1 , wherein the main light source comprises a first light holder, a first light-transmitting plate, and a plurality of first light beads, the first light-transmitting plate is assembled on the first light holder, the first light beads are disposed between the first light holder and the first light-transmitting plate, and the first light-transmitting plate is inclined inwards relative to the first light holder.

5 . The visual detection light source according to claim 1 , wherein an angle between a main direction of irradiation beams of the supplementary light source and the side face of the tab portion is 0° or 90°.

6 . The visual detection light source according to claim 5 , wherein the supplementary light source comprises a second light holder, a second light-transmitting plate, and a plurality of second light beads, the second light-transmitting plate is assembled on the second light holder, the second light beads are disposed between the second light holder and the second light-transmitting plate, and the second light-transmitting plate is parallel to a rear cover surface of the second light holder.

7 . The visual detection light source according to claim 1 , further comprising a bracket, the main light source and the supplementary light source being movably disposed on the bracket.

8 . Tab detection equipment configured to detect a first tab portion and a second tab portion on a cell, comprising:
a first visual detection light source, configured to irradiate an inner side face of the first tab portion; a second visual detection light source, configured to irradiate an outer side face of the second tab portion; a third visual detection light source, configured to irradiate an outer side face of the first tab portion; and a fourth visual detection light source, configured to irradiate an inner side face of the second tab portion, wherein the first visual detection light source, the second visual detection light source, the third visual detection light source and the fourth visual detection light source are spaced apart; wherein at least one of the first visual detection light source, the second visual detection light source, the third visual detection light source and the fourth visual detection light source is the visual detection light source according to claim 1 .

9 . The tab detection equipment according to claim 8 , wherein the first tab portion and the second tab portion are horizontally disposed and spaced apart along a first direction, and the main light source and the supplementary light source are disposed along a vertical direction.

10 . The tab detection equipment according to claim 9 , wherein light emitting surfaces of the supplementary light source in the first visual detection light source and the fourth visual detection light source are disposed along the first direction and the vertical direction; and
light emitting surfaces of the supplementary light source in the second visual detection light source and the third visual detection light source are disposed along a second direction and the vertical direction, the second direction being perpendicular to the first direction.

11 . The tab detection equipment according to claim 10 , wherein the first visual detection light source and the fourth visual detection light source are disposed in a mirroring manner, and the second visual detection light source and the third visual detection light source are disposed in a mirroring manner.

12 . The tab detection equipment according to claim 10 , wherein a visual detection light source mechanism further comprises a light shading plate disposed between the second visual detection light source and the third visual detection light source, and the light shading plate is a non-transparent plate.

13 . The tab detection equipment according to claim 12 , wherein the light shading plate is a non-transparent plate subjected to matte black treatment.

14 . The tab detection equipment according to claim 12 , wherein the visual detection light source mechanism further comprises a drive member connected to the light shading plate, and the drive member is configured to drive the light shading plate to move along the second direction.

15 . The tab detection equipment according to claim 8 , further comprising a conveying mechanism and a plurality of cell positioning tables disposed on the conveying mechanism, the conveying mechanism being configured to convey the cell positioning tables to allow the cell positioning tables to pass through the first visual detection light source, the second visual detection light source, the third visual detection light source and the fourth visual detection light source in sequence.

Assignees

• Contemporary Amperex Technology Hong Kong Ltd

Inventors

• Zhang Zhipeng
• Mao Yuyang
• Jiang Ping
• Chen Yong

Classifications

• G01N21/8803

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• G01N2021/845

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• Y02E60/10

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• G03B15/02

  Illuminating scene · CPC title

• G01N21/01

  Arrangements or apparatus for facilitating the optical investigation · CPC title