Illumination body for refrigeration devices

• US 6,578,979 B2
• Filed: 09/18/2001
• Issued: 06/17/2003
• Est. Priority Date: 09/26/2000
• Status: Expired due to Fees

• Current Assignee: LISA Lux GmbH
• Original Assignee: LISA Lux GmbH
• Inventors: Truttmann-Bättig, Elisabeth
• Primary Examiner(s): O'Shea, Sandra
• Assistant Examiner(s): Ward, John Anthony
• Application Number:
  US09/956,337
• Publication Number:
  US 20020051357A1
• Time in Patent Office: 637 Days
• Field of Search: 362/92, 362/236, 362/237, 362/238, 362/240, 362/249, 362/252, 362/253, 362/800
• US Class Current: 362/92
• CPC Class Codes: F21S 4/28 rigid, e.g. LED bars
• CPC Class Codes: F21S 6/005 with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting
• CPC Class Codes: F21V 19/001 the light sources being semiconductors devices, e.g. LEDs
• CPC Class Codes: F21W 2131/305 for refrigerators
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: F25D 2500/02 Geometry problems
• CPC Class Codes: F25D 27/00 Lighting arrangements in general F21

Abstract

The illumination body (1) according to the invention consists of a U-shaped rod profile (16) which on the open side is provided with a transparent covering (20) and in which in a tight packing behind one another there are inserted several modules (3). The modules (3) consist of a plastic housing (4) with a base plate (5) on which carrier webs (6) are formed. The carrier webs (6) define rest surfaces which are inclined to one another and on which the circuitboard strips (7) lie. On the circuitboard strips (7) there are arranged a multitude of LEDs in series behind one another. The LEDs (2) have an angle of irradiation (β). Preferably the angle of irradiation (β) and the inclination (α) of two neighboring circuitboard strips to one another correspond to one another. Several modules (3) are behind one another fastened on a common rail (8) by way of screws (28) and thus preassembled may be inserted into the rod profile (16) which comprises suitable longitudinal webs (17) with longitudinal guide slots (18).

Claims

1. An illumination body for refrigeration devices, with a multitude of light-emitting diodes LEDs, characterised in that the illumination is built up of module-forming plastic housings, wherein each plastic housing comprises a base plate with carrier webs on which lie circuitboard strips, wherein the circuitboard strips have the length of a plastic housing, and that in every housing there are arranged several circuitboard strips which in the longitudinal direction run parallel but inclined to one another, wherein the angle of inclination to one another at least approximately corresponds to the irradiation angle of the light emitting diodes, and wherein the illumination body has a rod profile which is essentially U-shaped in cross section, and that all module-forming plastic housings are held on a rail which is insertable into longitudinal guide slots.

2. An illumination body according to claim 1, further including two parallel longitudinal webs, and wherein the longitudinal guide slots are defined by the longitudinal webs.

3. An illumination body according to claim 1, characterised in that the module-forming plastic housing comprises a lid which may be placed onto the base plate and which is provided with an upper cover surface which is curved such that it forms the enveloping surface defined by the circuitboard strips, and is provided with a hole pattern through which the LEDs project and with this are held therein.

4. An illumination body according to claim 1, characterised in that in each plastic housing there are arranged three circuitboard strips.

5. An illumination body according to claim 1, characterised in that on each circuitboard strip there is present a row of LEDs arranged tightly behind one another.

6. An illumination body according to claim 1, characterised in that the base plate comprises round holes for fastening the plastic housing on a carrier rail and elongate holes for leading through electrical leads.

7. An illumination body according to claim 1, characterised in that the LEDs of each module are supplied in series and the modules amongst one another are supplied in parallel.

8. An illumination body according to claim 1, characterised in that in the ends of the free flanks of the U-shaped rod profile there are present grooves into which a transparent plastic covering is inserted.