LED lamp with fixed frame

• US 9,297,510 B2
• Filed: 06/28/2013
• Issued: 03/29/2016
• Est. Priority Date: 06/28/2012
• Status: Active Grant

• Current Assignee: BYD Semiconductor Co., Ltd. (BYD Company Limited)
• Original Assignee: BYD Company Limited, Shenzhen BYD Auto R&D Company Limited (BYD Company Limited)
• Inventors: Long, Feihong
• Primary Examiner(s): Williams, Joseph L
• Application Number:
  US13/930,470
• Publication Number:
  US 20140003064A1
• Time in Patent Office: 1,005 Days
• US Class Current: 1/1
• CPC Class Codes: F21K 9/233 specially adapted for generating a spot light distribution, e.g. for substitution of reflector lamps
• CPC Class Codes: F21V 17/10 characterised by specific fastening means or way of fastening F21V17/02 - F21V17/08 take precedence
• CPC Class Codes: F21V 29/89 Metals
• CPC Class Codes: F21V 5/04 of lens shape
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

An LED lamp is provided. The LED lamp includes a base; a heat radiation member disposed on the base and having a cavity therein; an LED module disposed on a bottom wall of the cavity; and a fixing frame mounted in the cavity so as to press the LED module on the bottom wall of the cavity.

Claims

1. An LED lamp comprising:

a base;

a heat radiation member disposed on the base and defining a cavity therein;

an LED module disposed on a bottom wall of the cavity; and

a fixing frame mounted in the cavity so as to press the LED module on the bottom wall of the cavity.

2. The LED lamp of claim 1, wherein the LED module comprises:

a substrate pressed on the bottom wall of the cavity by the a fixing frame;

a patch board disposed on the substrate;

a wire connected with the patch board; and

a chip disposed on the substrate and electrically connected to the patch board.

3. The LED lamp of claim 2, wherein the substrate is a ceramic substrate.

4. The LED lamp of claim 2, wherein the a fixing frame presses an outer edge of the substrate.

5. The LED lamp of claim 2, wherein a first holding groove is formed in a bottom wall of the cavity, and the substrate is disposed in the first holding groove.

6. The LED lamp of claim 1, wherein the a fixing frame is detachably fixed on the bottom wall of the cavity by a fastener.

7. The LED lamp of claim 1, wherein the a fixing frame comprises:

a fixing part mounted on the bottom wall of the cavity; and

a pressing part connected with the fixing part for pressing the LED module.

8. The LED lamp of claim 7, wherein the fixing part is configured as an annular plate,

wherein the pressing part comprises a plurality of pressing plates extended from an inner wall of the fixing part toward a center of the fixing part, spaced apart from each other along a circumferential direction of the fixing part and symmetrically arranged with respect to the center of the fixing part.

9. The LED lamp of claim 7, wherein a protruding rib for pressing the substrate is formed on a lower surface of the pressing part.

10. The LED lamp of claim 7,

wherein a first wire hole is formed in the bottom wall of the cavity and penetrated therethrough along an up and down direction,

wherein a second wire hole is formed in the fixing part, penetrated therethrough along the up and down direction and corresponded to the first wire hole,

wherein a first wire groove is formed in an upper surface of the fixing part and has an end communicated with the second wire hole.

11. The LED lamp of claim 10, wherein a column is disposed on a lower surface of the fixing part and fitted within the first wire hole, and the second wire hole is penetrated through the column.

12. The LED lamp of claim 10, wherein a wire passing extension is disposed on an inner wall of the fixing part and extended towards a center of the fixing part,

wherein a second wire groove is formed in an upper surface of the wire passing extension and communicated with the first wire groove.

13. The LED lamp of claim 12,

wherein a first holding groove for receiving the LED module and a second holding groove communicated with the first holding groove are formed in the bottom wall of the cavity,

a portion of the fixing part is recessed downwardly with respect to a remaining portion of the fixing part so as to form a first boss on a lower surface of the fixing part and to form the first wire groove,

a portion of the wire passing extension is recessed downwardly with respect to a remaining portion of the wire passing extension so as to form a second boss on a lower surface of the wire passing extension and to form the second wire groove,

wherein the first boss and the second boss are received in the second holding groove.

14. The LED lamp of claim 12, wherein the a fixing frame further comprises:

an upper ring;

a plurality of connection rods, each defining an upper end connected with the upper ring and a lower end connected with the fixing part, the plurality of connection rods being spaced apart from each other along a circumferential direction of the fixing part.

15. The LED lamp of claim 14, wherein the plurality of connection rods, the upper ring, the fixing part and the pressing part are integrally formed from a plastic material.