Fixation structure for fixing a lamp on a printed circuit board

• US 7,425,139 B2
• Filed: 10/31/2006
• Issued: 09/16/2008
• Est. Priority Date: 10/31/2006
• Status: Expired due to Fees

• Current Assignee: Logah Technology Corp.
• Original Assignee: Logah Technology Corp.
• Inventors: Hsu, Cheng-Chia, Chang, Teng-Kang, Pan, Yu-Cheng
• Primary Examiner(s): Abrams, Neil
• Application Number:
  US11/554,805
• Publication Number:
  US 20080102694A1
• Time in Patent Office: 686 Days
• Field of Search: 439/54, 439/56, 439/617, 439/618, 439/82, 439/825, 439/884, 439/915
• US Class Current: 439/82
• CPC Class Codes: H01R 33/09 for baseless lamp bulb
• CPC Class Codes: H05K 2201/10113 Lamp
• CPC Class Codes: H05K 2201/10401 Eyelets, i.e. rings inserted into a hole through a circuit board
• CPC Class Codes: H05K 2201/1059 Connections made by press-fit insertion
• CPC Class Codes: H05K 3/308 Adaptations of leads connectors to printed circuits H01R12/00
• CPC Class Codes: Y10S 439/915 Auxiliary device for existing plug

Abstract

In a fixation structure for fixing a lamp on a printed circuit board (PCB), a connection end of the lamp is received within a connection hole of the PCB and a sleeve having approximately cone shape is disposed between the lamp and the PCB. When the connection end of the lamp is continuously inserted into the connection hole of the PCB, a contact area between the connection end and the connection hole is increased, thereby effectively enhancing a contact-and-on performance of the lamp and the PCB. Sleeves may be located on lamps leads or alternatively placed in the connection hole of the PCB.

Claims

1. A fixation structure for fixing a lamp on a printed circuit board (PCB), characterized in that:

the lamp has a connection end having a resilient cone-shaped sleeve sleeved thereon and the PCB has a connection hole formed thereon, wherein a contact-and-on performance of the lamp and the PCB is enhanced by increasing contact area of the sleeve and the connection hole when the connection end of the sleeve is inserted into the connection hole of the PCB.

2. A fixation structure for fixing a lamp on a printed circuit board (PCB), characterized in that:

the lamp has a connection end thereon and the PCB has a connection hole formed thereon for receiving the connection end of the lamp and having a resilient cone-shaped sleeve inserted thereinto, the sleeve having a stop portion extending therefrom for preventing the connection end of the lamp from being inserted too deep into the connection hole of the PCB, the stop portion pressing on an external portion of the connection hole of the PCB, wherein the connection end of the lamp is inserted into the sleeve inside the connection hole of the PCB.