LED lamp

• US 7,965,023 B1
• Filed: 03/17/2010
• Issued: 06/21/2011
• Est. Priority Date: 03/17/2010
• Status: Expired due to Fees

• Current Assignee: Skynet Electronic Company Limited
• Original Assignee: Skynet Electronic Company Limited
• Inventors: Liang, Jim-Hung
• Primary Examiner(s): Patel; Vip
• Application Number:
  US12/659,682
• Time in Patent Office: 461 Days
• Field of Search: 313 45- 47, 313/318.01, 313/318.09
• US Class Current: 313/45
• CPC Class Codes: F21K 9/23 Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
• CPC Class Codes: F21V 19/0055 by screwing
• CPC Class Codes: F21V 23/002 Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm
• CPC Class Codes: F21V 29/507 of means for protecting lighting devices from damage, e.g. housings
• CPC Class Codes: F21V 29/773 the planes containing the fins or blades having the direction of the light emitting axis
• CPC Class Codes: F21V 29/86 Ceramics or glass
• CPC Class Codes: F21V 3/00 Globes; Bowls; Cover glasses with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

The present invention is to provide an LED lamp, which comprises a heat dissipation housing formed with a receiving hole axially passed therethrough, an insulation housing, an electrode cap connected to the insulation housing, a power PCB, and an installation base plate having a first side installed with at least one LED. A manufacturer only needs to firstly insert the insulation housing along with the electrode cap into the receiving hole for allowing the electrode cap to be extended out of a lower end of the heat dissipation housing, then insert the power PCB into the insulation housing and electrically connect the power PCB to the electrode cap, and finally position a second side of the installation base plate on the upper end of the heat dissipation housing and electrically connect the installation base plate to the power PCB, so as to rapidly complete the installation of the LED lamp.

Claims

1. An LED lamp, comprising:

a heat dissipation housing formed with a receiving hole axially passed therethrough, and a position of an upper end of the heat dissipation housing adjacent to the receiving hole being formed with an engaged indentation;

an insulation housing made of insulation material, and the profile of the insulation housing capable of being installed into the receiving hole, an upper end of an outer periphery of the insulation housing radially extended to form a projection which is configured to be inserted and engaged into the engaged indentation in a case that the insulation housing is installed in the receiving hole;

an electrode cap comprising a first electrode and a second electrode, wherein an edge of the electrode cap is connected to a lower end of the insulation housing, and wherein the electrode cap is extended out of a lower end of the heat dissipation housing in a case that the insulation housing is installed in the receiving hole and the projection is engaged with the engaged indentation;

a power printed circuit board (PCB) received in the insulation housing, and electrically connected to the first and second electrodes, respectively;

at least one LED, and

an installation base plate having a first side provided with conductive circuits for installing the LED and being electrically connected to the power PCB, and a second side connected to the upper end of the heat dissipation housing.

2. The LED lamp according to claim 1, further comprising a lamp shade which is covered on the first side of the installation base plate, and an opening edge of the lamp shade is connected to an edge of the upper end of the heat dissipation housing.

3. The LED lamp according to claim 2, wherein each of two opposite positions of an inner periphery of the insulation housing is formed with a positioning portion, respectively, and two opposite side edges of the power PCB are clamped by the two positioning portions, respectively, so that the power PCB is stably positioned in the insulation housing.

4. The LED lamp according to claim 3, wherein each of the positioning portions comprises two positioning ribs extended along an axial direction of the insulation housing, respectively.

5. The LED lamp according to claim 4, wherein an outer periphery of the heat dissipation housing is extended outward to form a plurality of cooling fins.

6. The LED lamp according to claim 5, wherein corresponding positions of an edge of the installation base plate and the upper end of the heat dissipation housing are formed with thread holes, respectively, and a plurality of screws are used to screw-connect the corresponding thread holes of the installation base plate and the heat dissipation housing for combining the installation base plate with the heat dissipation housing into one piece in a case that an edge of the second side of the installation base plate is installed to be close to the upper end of the heat dissipation housing.

7. The LED lamp according to claim 5, wherein an adhesive is used to attach an edge of the second side of the installation base plate to the upper end of the heat dissipation housing.