LED tube lamp

• US 10,634,291 B2
• Filed: 07/09/2018
• Issued: 04/28/2020
• Est. Priority Date: 09/02/2015
• Status: Active Grant

• Current Assignee: Jiaxing Super Lighting Electric Appliance Co., Ltd.
• Original Assignee: Jiaxing Super Lighting Electric Appliance Co., Ltd.
• Inventors: Xu, Hong, Yang, Chang, Chen, Shauliang, Jiang, Wenjang, Yao, Wentao
• Primary Examiner(s): Cariaso, Alan B
• Application Number:
  US16/030,833
• Publication Number:
  US 20180328546A1
• Time in Patent Office: 659 Days
• CPC Class Codes: F21K 9/275 Details of bases or housings, i.e. the parts between the light-generating element and the end caps; Arrangement of components within bases or housings F21K9/278 takes precedence
• CPC Class Codes: F21K 9/66 Details of globes or covers forming part of the light source
• CPC Class Codes: F21V 29/767 the planes containing the fins or blades having directions perpendicular to the light emitting axis
• CPC Class Codes: F21V 29/89 Metals
• CPC Class Codes: F21V 3/02 characterised by the shape
• CPC Class Codes: F21V 5/04 of lens shape
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

The invention involves an LED tube lamp, which comprises a lamp tube, which includes a light transmissive portion, a reinforcing portion and an end cap. The LED tube lamp further includes an LED light assembly, which includes an LED light source and an LED light strip. The light transmissive portion is fixedly connected to the reinforcing portion. The LED light strip abuts against the reinforcing portion, which holds the LED light assembly in place. The LED light source is thermally and electrically connected to the LED light strip, which is in turn thermally connected to the reinforcing portion. The end cap is attached to an end of the lamp tube. A ratio of a cross-sectional area of the reinforcing portion to a cross-sectional area of the lamp tube is from 1:3 to 1:30.

Claims

1. An LED tube lamp, comprising:

a lamp tube, which includes a light transmissive portion, a reinforcing portion and an end cap; and

an LED light assembly, which includes an LED light source and an LED light strip, wherein;

the light transmissive portion is fixedly connected to the reinforcing portion;

the LED light strip abuts against the reinforcing portion, which holds the LED light assembly in place;

the LED light source is thermally and electrically connected to the LED light strip, which is in turn thermally connected to the reinforcing portion;

the end cap is attached to an end of the lamp tube; and

a ratio of a cross-sectional area of the reinforcing portion to a cross-sectional area of the lamp tube is from 1;

3 to 1;

30.

2. The LED tube lamp in claim 1, wherein:

R15 is a ratio of an overall length of the reinforcing portion that shows itself on a circumference of a cross section of the lamp tube to an overall length of the light transmissive portion that shows itself on the circumference of the cross section of the lamp tube;

R15 is a constant regardless of where the cross section finds itself on a longitudinal axis of the lamp tube; and

R15 is from 0.02 to 1.65.

3. The LED tube lamp in claim 1, wherein:

R14 is a ratio of an overall area of the reinforcing portion that shows itself on an outer surface of the lamp tube to an overall area of the light transmissive portion that shows itself on the outer surface of the lamp tube; and

R14 is from 0.02 to 1.65.

4. The LED tube lamp in claim 1, wherein:

R16 is a ratio of an overall area of the reinforcing portion on the cross section of the lamp tube to an overall area of the light transmissive portion on the cross section of the lamp tube;

R16 is a constant regardless of where the cross section finds itself on the longitudinal axis of the lamp tube; and

R16 is from 0.02 to 4.

5. The LED tube lamp in claim 1, wherein:

R17 is a ratio of an aggregate of linear distances around an edge of the reinforcing portion on the cross section of the lamp tube to an aggregate of linear distances around an edge of the light transmissive portion on the cross section of the lamp tube;

R17 is a constant regardless of where the cross section finds itself on the longitudinal axis of the lamp tube; and

R17 is from 0.02 to 1.

6. The LED tube lamp in claim 1, wherein:

a hypothetical line segment U-L vertically bisects the cross section of the lamp tube into a left segment and a right segment;

the left segment and the right segment have an identical length horizontally;

the line segment U-L includes an upper endpoint U and a lower endpoint L, both endpoints falling on the circumference of the cross section of the lamp tube;

a length of the line segment U-L from the point U to the point L is H;

a line T′

-T′

is a lowest horizontal line on the cross section of the lamp tube above which no reinforcing portion is found;

a line B′

-B′

is a highest horizontal line on the cross section of the lamp tube below which no reinforcing portion is found;

a distance from the line T′

-T′

to the line B′

-B′

is F;

R18 is F/H;

R18 is a constant regardless of where the cross section finds itself on the longitudinal axis of the lamp tube; and

R18 is from 0.05 to 0.4.

7. The LED tube lamp in claim 6, wherein:

a distance from the point U to the line T′

-T′

is F1;

R19 is F1/H;

R19 is a constant regardless of where the cross section finds itself on the longitudinal axis of the lamp tube; and

R19 is from 0.6 to 0.95.

8. An LED tube lamp, comprising:

a lamp tube, which includes a light transmissive portion, a reinforcing portion and an end cap; and

an LED light assembly, which includes an LED light source and an LED light strip, wherein;

the light transmissive portion is fixedly connected to the reinforcing portion;

the LED light strip abuts against the reinforcing portion, which holds the LED light assembly in place;

the LED light source is thermally and electrically connected to the LED light strip, which is in turn thermally connected to the reinforcing portion;

the end cap is attached to an end of the lamp tube;

a cross section of the lamp tube defines a hypothetical polygon; and

a ratio of a cross-sectional area of the reinforcing portion to a cross-sectional area of the lamp tube is from 1;

3 to 1;

30.

9. The LED tube lamp in claim 8, wherein:

R15 is a ratio of an overall length of the reinforcing portion that shows itself on a circumference of a cross section of the lamp tube to an overall length of the light transmissive portion that shows itself on the circumference of the cross section of the lamp tube;

R15 is a constant regardless of where the cross section finds itself on a longitudinal axis of the lamp tube; and

R15 is from 0.02 to 1.65.

10. The LED tube lamp in claim 8, wherein:

R14 is a ratio of an overall area of the reinforcing portion that shows itself on an outer surface of the lamp tube to an overall area of the light transmissive portion that shows itself on the outer surface of the lamp tube; and

R14 is from 0.02 to 1.65.

11. The LED tube lamp in claim 8, wherein:

R16 is a ratio of an overall area of the reinforcing portion on the cross section of the lamp tube to an overall area of the light transmissive portion on the cross section of the lamp tube;

R16 is a constant regardless of where the cross section finds itself on the longitudinal axis of the lamp tube; and

R16 is from 0.02 to 4.

12. The LED tube lamp in claim 8, wherein:

R17 is a ratio of an aggregate of linear distances around an edge of the reinforcing portion on the cross section of the lamp tube to an aggregate of linear distances around an edge of the light transmissive portion on the cross section of the lamp tube;

R17 is a constant regardless of where the cross section finds itself on the longitudinal axis of the lamp tube; and

R17 is from 0.02 to 1.

13. The LED tube lamp in claim 8, wherein:

a hypothetical line segment U-L vertically bisects the cross section of the lamp tube into a left segment and a right segment;

the left segment and the right segment have an identical length horizontally;

the line segment U-L includes an upper endpoint U and a lower endpoint L, both endpoints falling on the circumference of the cross section of the lamp tube;

a length of the line segment U-L from the point U to the point L is H;

a line T′

-T′

is a lowest horizontal line on the cross section of the lamp tube above which no reinforcing portion is found;

a line B′

-B′

is a highest horizontal line on the cross section of the lamp tube below which no reinforcing portion is found;

a distance from the line T′

-T′

to the line B′

-B′

is F;

R18 is F/H;

R18 is a constant regardless of where the cross section finds itself on the longitudinal axis of the lamp tube; and

R18 is from 0.05 to 0.4.

14. The LED tube lamp in claim 13, wherein:

a distance from the point U to the line T′

-T′

is F1;

R19 is F1/H;

R19 is a constant regardless of where the cross section finds itself on the longitudinal axis of the lamp tube; and

R19 is from 0.6 to 0.95.