Integrated-shaping tubes for an automatic one-shot-modeled compact fluorescent lamp (CFL) in mass production and the method thereof

• US 8,283,847 B2
• Filed: 06/25/2004
• Issued: 10/09/2012
• Est. Priority Date: 06/27/2003
• Status: Expired due to Fees

• Current Assignee: Xiamen Donglin Electronics Company Limited
• Original Assignee: Xiamen Donglin Electronics Company Limited
• Inventors: He, Runlin
• Primary Examiner(s): Williams, Joseph L
• Assistant Examiner(s): FAROKHROOZ, FATIMA N
• Application Number:
  US10/562,357
• Publication Number:
  US 20060138931A1
• Time in Patent Office: 3,028 Days
• Field of Search: 653/19, 653/57, 654/92, 653/05, 65308-313, 653/61, 445/22, 445/26, 445/27, 445/17, 313483-485, 313/493, 313/495, 313/634, 313/312, 313/317, 313/318.01, 313/318.04, 313/318.05, 313/318.08, 313/318.11, 313/318.12, 313/113, 313/573, 313/339
• US Class Current: 313/493
• CPC Class Codes: H01J 61/325 U-shaped lamps
• CPC Class Codes: H01J 61/327 "Compact"-lamps, i.e. lamps having a folded discharge path
• CPC Class Codes: H01J 9/247 specially adapted for gas-discharge lamps
• CPC Class Codes: Y02B 20/00 Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Abstract

An energy-saving fluorescent lamp with two or more integrated-shaping discharge tubes, automatically formed by a one-shot modelin to a U-tube with a desired curvature. Each of discharge tubes are disposed upon a conveyer for being shipped into a heater and is treated in portions of the discharge tube by one or more said wide flame nozzles of preset temperatures for a preset duration simultaneously into a U-tube with a pair of leg tubes for fitting into a pair of integrated-shaping dies when said mechanic arm opens up said pair of dies for molding into a U-tube with a preset curvature radius.

Claims

1. An integrated-shaping discharge tubes for a one-shot-modeled compact fluorescent lamp (CFL) comprising

a) a conveyer;

b) straight discharge tubes, comprised of portions and disposed upon said conveyer for molding into a U-tube of a pair of leg tubes of a crescent shape with a same preset curvature radius in a same direction;

c) a heater with three wide flame nozzles of different flaming temperatures, arranged physically in series for flaming different portions of said straight discharge tube for a period of different duration, depending on said preset curvature radius of said leg tubes;

d) a pair of integrated-shaping dies, including a male die and a corresponding cavity, and a cross-section of a U-groove of each of dies is semi-circular;

e) a mechanic arm controlling the opening-up and closing-off of said pair of integrated-shaping dies;

wherein each of said discharge tubes disposed upon said conveyer is shipped into said heater and treated in portions of said discharge tube by one or more said wide flame nozzles of preset temperatures for a preset duration simultaneously into a U-tube with the pair of leg tubes for fitting into said pair of integrated-shaping dies when said mechanic arm opens up said pair of dies for receiving said U-tube, and

closes off said pair of dies for moulding said U-tube within by blowing high pressure air to said U-tube said for forming a U-tube with the preset curvature radius.

2. An Integrated-shaping discharge tubes for a one-shot-modeled compact fluorescent lamps (CFL) discharge tube as claimed in claim 1, wherein the diameter of said pair of leg tubes of said U-like discharge tube is in the range of 6. to 0.12 mm.

3. An Integrated-shaping discharge tubes for a one-shot-modeled compact fluorescent lamps (CFL) as claimed in claim 1, wherein said U-tube is bent to the shape of an arc.

4. An Integrated-shaping discharge tubes for a one-shot-modeled compact fluorescent lamps (CFL) as claimed in claim 1, wherein the number of said discharge tubes is two or more.

5. An Integrated-shaping discharge tubes for a one-shot-modeled compact fluorescent lamp (CFL) as claimed in claim 1, wherein two or more said U-tube with a preset curvature radius are assembled into a compact fluorescent lamps (CFL), configured to be in a circle, an ellipse, a rectangle, a triangle or a polygon in the top view thereof.

6. An integrated-shaping discharge tubes for a one-shot-modeled compact fluorescent lamps (CFL) as claimed in claim 1, wherein said wide flaming nozzles come of different width of flaming.

7. An Integrated-shaping discharge tubes for a one-shot-modeled compact fluorescent lamps (CFL) as claimed in claim 1, wherein said wide flame nozzles are arranged in the sequence of single segment, followed by single-segment, followed by triple-segment.

8. An Integrated-shaping discharge tubes for a one-shot-modeled compact fluorescent lamps (CFL) as claimed in claim 1, wherein said wide flame nozzles are arranged in the sequence of single-segment, followed by triple-segment, followed by single-segment.

9. An Integrated-shaping discharge tubes for a one-shot-modeled compact fluorescent lamps (CFL) as claimed in claim 1, wherein based on manufacturer'"'"'s desired sinuosity of said U-tube, different portions of said U-tube are treated with different heating temperatures by said wide flame nozzles.

10. An Integrated-shaping discharge tubes for a one-shot-modeled compact fluorescent lamps (CFL) as claimed in claim 1, wherein based on manufacturer'"'"'s desired sinuosity of said U-tube, different portions of said U-tube are treated with different heating temperatures of flames by said wide flame nozzles.

11. An Integrated-shaping discharge tubes for a one-shot-modeled compact fluorescent lamps (CFL) as claimed in claim 1, wherein based on manufacturer'"'"'s desired sinuosity of said U-tube, different portions of said U-tubeare treated with the same heating temperatures of flame and different heating period of time by said wide flame nozzles.

12. An Integrated-shaping discharge tubes for a one-shot-modeled compact fluorescent lamps (CFL) as claimed in claim 1, wherein based on manufacturer'"'"'s desired sinuosity of said U-tube, different portions of said U-tube are treated with different heating temperature flame and different heating period time by said wide flame nozzles.

13. An Integrated-shaping discharge tubes for a one-shot-modeled compact fluorescent lamps (CFL) discharge tube, as claimed in claim 1, including a cavity die and a male die, wherein the die delimiting boundary for said two dies is formed along curved axils of the discharge tube so that the U-groove is divided two half-portions respectively formed on the cavity die and the male die along with the die parting face, the cross-section of the U-groove on each die appears to half circle.

14. An Integrated-shaping discharge tubes for a one-shot-modeled compact fluorescent lamps (CFL) as claimed in claim 1, wherein the radius of said U-tube is in the range of 2.5.to .6.5 mm, with the preferred value being in the range of 4.0. to 6.0 mm.

15. An Integrated-shaping discharge tubes for a one-shot-modeled compact fluorescent lamps (CFL) as claimed in claim 1, wherein said U-groove on the cavity die is kept smooth, and the bottom side is built with ejector pin with a cone tip.