Retention system for light source lamps in recessed luminaires

Patent metadata

Field	Value
Publication number	US-10557618-B2
Application number	US-201815986484-A
Country	US
Kind code	B2
Filing date	May 22, 2018
Priority date	May 22, 2018
Publication date	Feb 11, 2020
Grant date	Feb 11, 2020

Abstract

A retention system for holding a light source lamp in a recessed luminaire includes a retention spring portion that is pivotally coupled to a light source holding bracket of the recessed luminaire. The light source holding bracket is configured to house a light source lamp therein. Further, the retention system includes a retention arm portion that extends from and is formed integral with the retention spring portion. The retention spring portion forces the retention arm portion towards the light source holding bracket such that the retention arm portion engages and applies an active load on the light source lamp that is disposed in the light source holding bracket to securely retain the light source lamp within the recessed luminaire.

First claim

What is claimed is:

1. A recessed luminaire comprising:
a light source holding bracket comprising a sidewall and a shoulder that defines a light emitting through opening and extends substantially perpendicular to the sidewall, the light source holding bracket configured to hold a light source lamp therein such that the light source lamp rests on the shoulder; and
a retention device that is pivotally coupled to the light source holding bracket, the retention device comprising:
a retention spring portion that is pivotally coupled to the sidewall of the light source holding bracket; and
a retention arm portion that extends from and is formed integrally with the retention spring portion,
wherein the retention spring portion is configured to force the retention arm portion towards the light source holding bracket such that the retention arm portion engages and applies an active load on the light source lamp when disposed in the light source holding bracket to clamp the light source lamp between the retention arm portion and the shoulder of the light source holding bracket and thereby securely retain the light source lamp within the recessed luminaire.

2. The recessed luminaire of claim 1 , wherein the sidewall of the light source holding bracket comprises a coupling notch that defines a pair of pivot arms that are configured to receive the retention spring portion of the retention device to pivotally couple the retention device to the light source holding bracket.

3. The recessed luminaire of claim 1 , wherein the retention device is formed using a single piece of metal wire.

4. The recessed luminaire of claim 1 , wherein the retention spring portion comprises a spring that extends from a first side that is adjacent a first end arm of the retention device to a second side that is opposite to the first side and away from the first end arm.

5. The recessed luminaire of claim 4 , wherein the spring comprises a first opening on the first side and a second opening on the second side, and wherein the spring defines a cavity therethrough.

6. The recessed luminaire of claim 5 , wherein the light source holding bracket comprises a first pivoting arm that is inserted into the first opening on the first side of the spring and a second pivoting arm that is inserted into the second opening on the second side of the spring to pivotally couple the retention device to the light source holding bracket.

7. The recessed luminaire of claim 3 :
wherein the single piece of metal wire is helically wound to form a spring that defines the retention spring portion and that extends from one side of the spring to form a loop that defines the retention arm portion.

8. The recessed luminaire of claim 7 :
wherein the loop comprises a first arm, a second arm, and a retention opening that is formed in between the first arm and the second arm, and wherein the retention arm portion is configured to engage the light source lamp such that a stem of the light source lamp extends through the retention opening that is formed between the first arm and the second arm.

9. The recessed luminaire of claim 7 , wherein the loop terminates at a second end arm that is passed through an opening in between adjacent spring loops at the other side of the spring.

10. The recessed luminaire of claim 1 , wherein the light source lamp is a multifaceted reflector halogen lamp.

11. The recessed luminaire of claim 1 , wherein the light source lamp is a reflector type light emitting diode (LED) lamp that includes at least one of an MR16 LED floodlight lamp, an MR16 LED lamp with a GU10 base, and an MR16 LED lamp with a GU5.3 base.

12. The recessed luminaire of claim 1 , wherein the retention device is adapted to securely retain different light source lamps having different body shapes and sizes, and wherein the different light source lamps include one of a multifaceted reflector halogen lamp and a reflector type LED lamp.

13. A retention system comprising:
a retention spring portion pivotally coupled to a light source holding bracket that comprises retention tabs, wherein the light source holding bracket is configured to house a multifaceted reflector lamp therein such that the multifaceted reflector lamp rests on the retention tabs; and
a retention arm portion that extends from and is formed integrally with the retention spring portion,
wherein the retention spring portion is configured to force the retention arm portion towards the light source holding bracket such that the retention arm portion engages and applies an active load on the multifaceted reflector lamp disposed in the light source holding bracket to clamp the multifaceted reflector lamp between the retention arm portion and the retention tabs of the light source holding bracket and thereby securely retain the multifaceted reflector lamp.

14. The retention system of claim 13 , wherein the multifaceted reflector lamp comprises one of a reflector type light emitting diode (LED) lamp and a multifaceted reflector halogen lamp.

15. The retention system of claim 13 , wherein the retention spring portion is formed using a single piece of metal wire that is helically wound to form a spring and that extends from one side of the spring to form a loop that defines the retention arm portion terminating adjacent another side of the spring that is opposite to the one side.

16. The retention system of claim 15 , wherein the loop comprises a base segment and a front segment that further extends from the base segment such that it forms an obtuse inner angle with the base segment.

17. The retention system of claim 16 , wherein the front segment of the loop defines a first arm, a second arm, and a retention opening that is formed in between the first arm and the second arm.

18. The retention system of claim 17 , wherein the retention opening is configured to receive a stem of the multifaceted reflector lamp therein while the first arm and the second arm engage a top portion of the multifaceted reflector lamp such that the active load is applied to the multifaceted reflector lamp.

19. The retention system of claim 15 , wherein the loop terminates at a second end arm that extends towards the one side of the spring and provides a support for the retention arm portion of the retention device.

20. The retention system of claim 13 , wherein the retention system is adapted to securely retain different light source lamps having different body shapes and sizes, and wherein the different light source lamps include one of a multifaceted reflector halogen lamp and a reflector type LED lamp.

Assignees

• Eaton Intelligent Power Ltd

Inventors

• Ernst Oliver

Classifications

• F21K9/237

  Details of housings or cases, i.e. the parts between the light-generating element and the bases; Arrangement of components within housings or cases (F21K9/238 takes precedence) · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• F21S8/026

  intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling · CPC title

• F21K9/233

  specially adapted for generating a spot light distribution, e.g. for substitution of reflector lamps · CPC title

• F21Y2101/00

  Point-like light sources · CPC title