Heat dissipating high intensity lamp housing

• US 5,050,055 A
• Filed: 08/28/1989
• Issued: 09/17/1991
• Est. Priority Date: 08/28/1989
• Status: Expired due to Fees

• Current Assignee: UVP, Inc.
• Original Assignee: UVP, Inc.
• Inventors: Lindsay, James R., Garcia, Alexander Jr., Meyer, Ronald A., Waluszko, Alexander
• Primary Examiner(s): Lazarus, Ira S.
• Assistant Examiner(s): Cole, Richard R.
• Application Number:
  US07/399,709
• Time in Patent Office: 750 Days
• Field of Search: 362/293, 362/294, 362/373, 362/376, 362/399
• US Class Current: 362/293
• CPC Class Codes: F21V 17/14 Bayonet-type fastening
• CPC Class Codes: F21V 27/00 Cable-stowing arrangements structurally associated with lighting devices, e.g. reels storing lengths of cable in general B65H; the lighting devices being vehicle headlamps F21S41/192; the lighting devices being vehicle lights F21S43/195
• CPC Class Codes: F21V 29/15 Thermal insulation
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels

Abstract

A high intensity lamp has a housing formed by first and second housing halves fitted together, a rear cover and a front cover. The first and second housing halves have a handle integrally formed therewith so that the lamp is portable. The housing encases a socket, the high intensity lamp source, a lamp shield and a filter, as well as part of a power cord. The front cover is releasably attached to the first and second housing halves. The filter is releasably attached to the housing halves by means of a retainer, disposed in the housing halves, having inwardly inclined tongs with respect to the housing, which hold therebetween a projection from the filter. The rear cover and each housing half has several elongated ventilation slots. The front cover has feet on which the lamp can rest. The feet are reinforced by ribs which serve, together with tabs, to hold a splash shield in place in the cover.

Claims

1. A high-intensity ultraviolet lamp comprising:

a filter assembly comprising a filter for the ultraviolet source; and

a housing for encasing the ultraviolet source and filter assembly,

wherein top, bottom, and side surfaces of the housing have a series of multiple elongated ventilation slots formed therein for dissipating heat generated by the ultraviolet source to ambient atmosphere outside the housing, and

wherein the lamp further comprises a thermally conductive shield surrounding the source, and the filter assembly further comprises a thermally conductive chassis surrounding the filter and partially overlapping the shield, whereby the shield and chassis assist in dissipating heat to the ambient atmosphere.

2. The lamp of claim 1, further comprising means for holding the shield and chassis in spaced relation to the housing.

3. The lamp of claim 1, wherein the chassis has pins extending outward therefrom, and the lamp further comprises retainer means supported on the housing for releasably holding the filter assembly, the retainer means comprising pairs of opposing inwardly inclined tongs with respect to the housing, each pair of opposing tongs for receiving a respective one of the pins therebetween, and for releasing the pins in response to pressing the retainer means outward.

4. The lamp of claim 3, wherein the retainer means comprises at least two spring clips fixed to the housing, each of the spring clips having one of the pairs of tongs formed integrally therein.

5. The lamp of claim 3, wherein the housing comprises first and second housing halves fitted together and each having a protrusion from their exterior adjacent one end, a front cover having two elongated portions formed with apertures therein, the front cover being removably attached to the first and second housing halves at the one end by disposing the protrusions from each housing half into a respective one of the apertures.

6. The lamp of claim 5, wherein the ventilation slots are formed in each housing half.

7. The lamp of claim 5, wherein the front cover has integrally formed feet extending outward therefrom, whereby the lamp may be placed on the feet.

8. The lamp as recited in claim 7, wherein the front cover is formed with ribs for supporting each of the feet, and tabs extending rearwardly for supporting a splash shield between the ribs and the tabs, the feet and tabs being formed with space therebetween for communicating the ambient atmosphere with air flow inside the housing.

9. A high-intensity lamp comprising:

a high-intensity lamp source;

a filter assembly comprising a filter and a chassis surrounding the filter; and

a housing, with a cover, for encasing the lamp source and filter assembly,

wherein the chassis has pins extending outward therefrom, and wherein the lamp further comprises retainer means supported on the housing for releasably holding the filter assembly, the retainer means comprising pairs of opposing inwardly inclined tongs with respect to the housing, each pair of opposing tongs for receiving one of the pins therebetween, and for releasing the pins in response to pressing the retainer means outward, and wherein the housing has two projections at a front end thereof, and the front cover has two elongated portions formed with apertures therein, the front cover being removably attached to the housing at one end by disposing the two projections for the housing inside the apertures.

10. The lamp of claim 9, wherein top, bottom, and side surfaces of the housing have a series of multiple elongated ventilation slots formed therein for dissipating heat generated by the lamp source to ambient atmosphere outside the housing, and wherein the lamp further comprises a thermally conductive shield surrounding the source, and the chassis comprises a thermally conductive material and partially overlaps the shield, whereby the shield and chassis assist in dissipating heat to the ambient atmosphere.

11. The lamp of claim 10, further comprising means for holding the shield in spaced relation to the housing, and the retainer means is adapted for holding the chassis in spaced relation to the housing.

12. The lamp of claim 9, wherein the retainer means comprises at least two spring clips fixed to the housing, each of the spring clips having one of the pairs of tongs formed integrally therein.

13. The lamp of claim 9, wherein the front cover has integrally formed feet extending outward therefrom, whereby the lamp may be placed on the feet.

14. The lamp as recited in claim 13, wherein the front cover is formed with ribs for supporting each of the feet, and tabs extending rearwardly for supporting a splash shield between the ribs and the tabs, the feet and tabs being formed with space therebetween for communicating the ambient atmosphere with air flow inside the housing.

15. The lamp of claim 9, wherein each pair of tongs comprises a first tong and a second tong, each of the pins being adapted for sliding over the first tong and being engaged between the first and second tongs for reattachment of the filter assembly to the housing.