HRP20090600A2

HRP20090600A2 - Showcase for presentation of goods

Info

Publication number: HRP20090600A2
Application number: HR20090600A
Authority: HR
Inventors: Ernest Peter
Original assignee: Aldi Einkauf Gmbh & Co. Ohg
Priority date: 2009-11-06
Filing date: 2009-11-06
Publication date: 2011-05-31

Abstract

Rashladna vitrina osvijetljena je LED lampom (6) postavljenom na vrhu, iznad strane (5) s koje se uzima hrana. Svaka lampa ima kućište (10) s otvorima (11) za hladni zrak iz vitrine.The cooling cabinet is illuminated by an LED lamp (6) placed on top, above the food side (5). Each lamp has a housing (10) with openings (11) for cold air from the cabinet.

Description

Izum je vezan uz vitrinu za izlaganje robe i to rashladna vitrina koja se sastoji od kućišta, rasvjetnog uređaja na bazi LED dioda te rashladnog uređaja, s time da je rasvjetni uređaj postavljen na prostoru otvora za vađenje robe te se rasvjetni uređaj sastoji od kućišta lampe koje je na vrhu zatvoreno prozirnim pokrovom, a u unutrašnjosti dobiva pojedinačne LED diode, a tu je i uređaj koji napaja LED diode strujom. The invention is related to a display case for displaying goods, namely a refrigerated display case that consists of a housing, a lighting device based on LEDs and a cooling device, with the fact that the lighting device is placed in the area of the opening for removing the goods, and the lighting device consists of a lamp housing that is closed at the top with a transparent cover, and inside it gets individual LEDs, and there is also a device that supplies the LEDs with electricity.

Takve vitrine za izlaganje robe i/ili rashladne vitrine u pravilu se koriste za izlaganje robe koja se treba hladiti te se koriste u samoposlužnim maloprodajnim mjestima i za samoposluživanje u dućanima, na primjer u mesnicama i si. Vezno uz to, vitrina za izlaganje robe i/ili rashladna vitrina u pravilu ima rashladni kanal koji je pokriven podlogom za slaganje robe u prostoru za izlaganje robe. U rashladni kanal je postavljena rashladna jedinica zajedno s ventilatorom koji je brine za cirkulaciju zraka koji struji kroz prostor za izlaganje robe i u konačnici osigurava hlađenje izložene robe. Such showcases for displaying goods and/or refrigerated display cases are generally used for displaying goods that need to be cooled and are used in self-service retail outlets and for self-service in shops, for example in butchers and so on. In addition, the showcase for the display of goods and/or the refrigerated display case, as a rule, has a cooling channel that is covered with a base for stacking the goods in the space for displaying the goods. A cooling unit is placed in the cooling channel together with a fan that takes care of the air circulation that flows through the space for displaying the goods and ultimately ensures the cooling of the displayed goods.

Vitrina za izlaganje robe konfiguracije opisane u uvodu predstavljena je u US 2003/0137828. U ovom slučaju, kućište lampe dobiva LED diode postavljene linearno. U stavku (0038) nadalje se otkriva da kućište lampe mora biti konfigurirano na način da bude hermetički zatvoreno zbog hladnog okruženja. Na taj se način pokušava izbjeći kondenzacija. No hermetički zatvarač može dovesti do nakupljanja topline u unutrašnjosti kućišta lampe. No rasvjetni uređaj se ne hladi optimalno pa se roba postavljena u neposrednoj blizini istog može otopiti ili odmrznuti. Moguće je i stvaranje štetne kondenzacije. Uslijed toga može doći do smanjenja roka trajanja izložene robe i/ili kvalitete. Cilj ovog izuma je ispraviti to. A showcase for displaying goods of the configuration described in the introduction is presented in US 2003/0137828. In this case, the lamp housing receives linearly arranged LEDs. Paragraph (0038) further discloses that the lamp housing must be configured to be hermetically sealed due to the cold environment. In this way, an attempt is made to avoid condensation. But the hermetic closure can lead to heat build-up inside the lamp housing. However, the lighting device does not cool optimally, so the goods placed in the immediate vicinity of it can melt or thaw. The formation of harmful condensation is also possible. As a result, the shelf life and/or quality of the displayed goods may be reduced. The aim of the present invention is to correct this.

Tehnički problem na kojem se temelji izum je dodatno razviti takvu vitrinu za izlaganje robe kako bi se osigurao rasvjetni uređaj namijenjen za navedenu primjenu, a da se kvaliteta hlađene robe na umanji. The technical problem on which the invention is based is to additionally develop such a showcase for displaying goods in order to provide a lighting device intended for the specified application, while reducing the quality of the refrigerated goods.

Za rješavanje ovog tehničkog problema, tu je generička vitrina za izlaganje robe u okviru izuma, naznačena time što kućište lampe rasvjetnog uređaja ima otvore za hladni zrak koji cirkulira u kućištu vitrine za izlaganje robe. U tom pogledu, otvori se mogu postaviti na suprotnim stranama kućišta lampe i to u smjeru strujanja hladnog zraka. Na primjer, preporuča se staviti otvore na obje prednje strane kućišta lampe i/ili na dvije bočne strane. U pravilu je kućište lampe longitudinalno izduljenog kockastog oblika, s prozirnim pokrovom u presjeku, koji je zaobljen u presjeku koji je pričvršćen na bazu u obliku slova U radi zatvaranja na vrhu. To solve this technical problem, there is a generic display case of the invention, characterized in that the housing of the lamp of the lighting device has openings for cold air that circulates in the case of the display case. In this regard, the openings can be placed on the opposite sides of the lamp housing in the direction of the flow of cold air. For example, it is recommended to put openings on both front sides of the lamp housing and/or on two sides. As a rule, the lamp housing is longitudinally elongated cube-shaped, with a transparent cover in section, which is rounded in section and is attached to a U-shaped base to close at the top.

No otvori koji se po mogućnosti postavljaju u smjeru strujanja hladnog zraka brinu se da hladan zrak neometano ulazi u kućište lampe te da zrak struji kroz kućište lampe. Na taj se način sukladno izumu hladi rasvjetni uređaj i/ili ovdje predviđene LED diode, uključujući uređaj za napajanje strujom. Zapravo se ovdje postižu temperature ispod 10°C. But the openings, which are preferably placed in the direction of the flow of cold air, ensure that the cold air enters the lamp housing unhindered and that the air flows through the lamp housing. In this way, according to the invention, the lighting device and/or the LEDs provided here, including the power supply device, are cooled. In fact, temperatures below 10°C are reached here.

To vodi do činjenice da se učinkovitost LED dioda povećava u odnosu na primjene na sobnoj temperaturi, s obzirom da je poznato da komponente poluvodiča općenito i LED diode sa svojim PN spojevima imaju veću učinkovitost, posebice na smanjenoj temperaturi. Drugim riječima, za razliku od prethodno korištenih fluorescentnih lampi, u kombinaciji s hladnim zrakom koji cirkulira, rezultat je emisija svjetla iz rasvjetnog uređaja koja je poboljšana, a ne umanjena. Nadalje, toplina koju generiraju LED diode je mala, s obzirom da se sva električna energija pretvara u svjetlosnu energiju pa se ovdje mogu predvidjeti stope pretvaranja od znatno više od 80% ili čak više od 90%. This leads to the fact that the efficiency of LEDs increases compared to applications at room temperature, considering that it is known that semiconductor components in general and LEDs with their PN junctions have a higher efficiency, especially at reduced temperature. In other words, unlike previously used fluorescent lamps, in combination with cold circulating air, the result is light emission from the lighting device that is enhanced, not diminished. Furthermore, the heat generated by LEDs is low, given that all electrical energy is converted into light energy, so conversion rates of well over 80% or even over 90% can be predicted here.

Stoga nema rizika da je se rok trajanja pojedinih roba umanjiti grijanjem vezanim uz zračenje svjetla. Osim toga, vezano uz prethodna utjelovljenja, moguće je upravljati rashladnim uređajem s manje struje, s obzirom da je smanjeno generiranje topline. U kombinaciji s povećanom rasvjetnom učinkovitošću i manjom potrošnjom energije, rezultat su neposredne uštede na troškovima u odnosu na prethodna utjelovljenja, a što je a uštede su još i veće s obzirom da LED diode imaju izrazito dug vijek trajanja u odnosu na fluorescentne lampe. Ovdje se mogu uočiti značajne prednosti. Therefore, there is no risk that the shelf life of certain goods is reduced by heating related to light radiation. In addition, in relation to the previous embodiments, it is possible to operate the cooling device with less current, considering that the heat generation is reduced. Combined with increased lighting efficiency and lower energy consumption, the result is immediate cost savings compared to previous incarnations, and what's more, the savings are even greater considering that LEDs have an extremely long lifespan compared to fluorescent lamps. Significant advantages can be seen here.

U pravilu uređaj radi sa trakom u koju su postavljene LED diode, s obzirom da su vitrine za izlaganje robe obično široke metar ili više pa se prostor za izlaganje robe koji je razmjerno velik mora osvjetljavati cijelom dužinom pomoću brojnih LED dioda. U tom pogledu izum kao LED diode u pravilu koristi takozvane LED diode s bijelim svjetlom. U tom se kontekstu koncept monolitne integracije više slojeva poluvodiča i odgovarajućih PN spojeva na podlozi pokazao povoljnim. Materijali poluvodiča su kombinirani na način da se na odgovarajućim PN spojevima svjetlo proizvodi na različitim valnim duljinama uvođenjem struje. As a rule, the device works with a strip in which LEDs are placed, considering that showcases for displaying goods are usually a meter or more wide, so the space for displaying goods, which is relatively large, must be illuminated along its entire length using numerous LEDs. In this regard, the invention generally uses so-called white light LEDs as LEDs. In this context, the concept of monolithic integration of multiple semiconductor layers and corresponding PN junctions on the substrate proved to be advantageous. Semiconductor materials are combined in such a way that at the corresponding PN junctions, light is produced at different wavelengths by introducing current.

U ovom je slučaju, primjerice, moguć rad s tri PN spoja za svaku LED diodu, koja emitira svjetlo s valnim duljinama ukrasne crvene, zelene i plave boje, čime se stvara optički efekt bijelog svjetla. Ova konstrukcija ima prednost se u načelu može ostvariti miješano obojeno svjetlo bilo koje boje te željene nijanse, čime se dobivaju višestruke primjene. Naime, postoji mogućnost prilagođavanja LED dioda s bijelim svjetlom konfiguriranih na taj način spektru radijatora crnog tijela na temperaturi od oko 4000 kelvina. Takav radijator crnog tijela naznačen je time što ima posebno "toplu" bijelu boju te je ljudsko oko percipira kao izuzetno ugodnu. Naravno, mogu se percipirati i drugi spektri pomoću takve monolitne komponente poluvodiča. In this case, for example, it is possible to work with three PN junctions for each LED, which emits light with wavelengths of decorative red, green and blue colors, which creates the optical effect of white light. This construction has the advantage that, in principle, it is possible to create mixed colored light of any color and the desired shade, which results in multiple applications. Namely, there is the possibility of adjusting LEDs with white light configured in this way to the spectrum of a black body radiator at a temperature of about 4000 kelvin. Such a radiator with a black body is characterized by the fact that it has a particularly "warm" white color and is perceived by the human eye as extremely pleasant. Of course, other spectra can be perceived using such a monolithic semiconductor component.

Na poznati način radijator crnog tijela i/ili crno tijelo ima spektralnu distribuciju intenziteta koja se može odrediti prema Planckovom zakonu zračenja ovisno o temperaturi (u kelvinima). Uz LED diode s bijelim svjetlom, dostupni su izvori snopa koji se time mogu opisati u prvoj aproksimaciji (uzimajući u obzir pretpostavljenu temperaturu, u predmetnom utjelovljenju 4000 kelvina). In a known way, a black body radiator and/or black body has a spectral distribution of intensity that can be determined according to Planck's law of radiation depending on the temperature (in Kelvin). In addition to white light LEDs, beam sources are available that can thus be described to a first approximation (taking into account the assumed temperature, in the present embodiment 4000 Kelvin).

Osim toga, svjetlo koje dolazi iz pojedinih LED dioda po izboru se može filtrirati i raširiti. U tu je svrhu osiguran optički sustav smješten sprijeda. Taj optički sustav može se konfigurirati kao prizmatični sustav koji se sastoji od Fresnelovih leća i može se povoljno proizvesti u kontekstu adekvatno konstruiranog plastičnog filma ili plastičnih čepova, kao stoje na primjer prikazano u DE 35 250 A1 u kombinaciji s prijemnikom infracrvenog zračenja. In addition, the light coming from individual LEDs can optionally be filtered and spread. For this purpose, an optical system located in the front is provided. This optical system can be configured as a prismatic system consisting of Fresnel lenses and can be advantageously produced in the context of an adequately designed plastic film or plastic caps, as for example shown in DE 35 250 A1 in combination with an infrared radiation receiver.

U tom se pogledu izum temelji na spoznaji da tipične LED diode s bijelim svjetlom u pravilu zrače pod prostornim kutom od oko 60° do 80°, s time da bi za prikazanu primjenu osvjetljavanja prostora za izlaganje robe u vitrini za izlaganje robe čak poželjniji bio povećan prostorni kut od 100° do 120°. Kako bi se povećao raspon prostornog kuta, naprijed navedeni optički sustav i/ili prizmatični optički sustav ili optički sustav s facetom stavlja se sprijeda i osigurava željeno širenje snopa do 100° do 120° ili čak više. In this respect, the invention is based on the knowledge that typical LEDs with white light, as a rule, radiate at a spatial angle of about 60° to 80°, with the fact that for the shown application of lighting the space for displaying goods in a showcase for displaying goods, it would be even more desirable to increase spatial angle from 100° to 120°. In order to increase the solid angle range, the above optical system and/or a prismatic optical system or a faceted optical system is placed in front and provides the desired beam spread up to 100° to 120° or even more.

Kako bi se konstruirala instalacija na što je moguće isplativiji i manje složen način, rasvjetni uređaj na temelju LED dioda i/ili LED rasvjetni uređaj kombinira se s uređajem za napajanje strujom i eventualno optičkim sustavom i/ili prizmatičnim optičkim sustavom kako bi se formirao modul. Taj modul se lako može postaviti kao podsklop u obliku svjetleće šipke slične fluorescentnoj lampi na vrh prikazanog otvora za vađenje. Nadalje, zahvaljujući kompaktnoj konstrukciji, postojeće vitrine za izlaganje robe s primjerice fluorescentnom lampom kao rasvjetnim uređajem jednostavno se mogu remodelirati. In order to construct the installation in the most cost-effective and less complex way possible, the LED-based lighting device and/or LED lighting device is combined with a power supply device and possibly an optical system and/or a prismatic optical system to form a module. This module can easily be installed as a sub-assembly in the form of a light bar similar to a fluorescent lamp on top of the extraction port shown. Furthermore, thanks to the compact construction, existing showcases for displaying goods with, for example, a fluorescent lamp as a lighting device can be easily remodeled.

U tom pogledu uređaj za napajanje strujom ima najmanje jedan pretvarač struje glavnog voda i ispravljač. Osim toga, može se ugraditi prigušivač za upravljanje snagom LED dioda, ali nije obavezan. Pomoću pretvarača struje glavnog voda, uređaj za napajanje strujom i/ili rasvjetni uređaj temeljen na LED diodama može se izravno spojiti na konvencionalni napon izmjenične struje i/ili napon glavnog voda od 220 V, koji zahvaljujući kompaktnoj izradi olakšava zamjenu u odnosu na postojeće fluorescentne lampe i pojednostavljuje instalaciju. Drugim riječima, rasvjetni uređaj temeljen na LED diodama sukladno izumu u konačnici se konfigurira kao zamjenjivi modul u usporedbi s konvencionalnim fluorescentnim lampama. In this regard, the power supply device has at least one main line current converter and rectifier. Additionally, a dimmer can be installed to control the power of the LEDs, but is optional. By means of a mains current converter, the power supply device and/or lighting device based on LED diodes can be directly connected to the conventional AC voltage and/or the mains voltage of 220 V, which, thanks to its compact design, facilitates replacement compared to existing fluorescent lamps and simplifies installation. In other words, the LED-based lighting device according to the invention is ultimately configured as a replaceable module compared to conventional fluorescent lamps.

U tom pogledu, modul i/ili sklop koji se sastoji od LED dioda, optički sustav i uređaj za napajanje strujom, kako je već navedeno, ima navedene otvore na kućištu lampe koji se brinu za dotok hladnog zraka koji cirkulira od rashladnog uređaja kroz vitrinu za izlaganje robe. In this regard, the module and/or assembly consisting of the LEDs, the optical system and the power supply device, as already mentioned, has said openings on the lamp housing which take care of the inflow of cold air circulating from the cooling device through the cabinet for display of goods.

Izum je detaljnije opisan u nastavku u odnosu na crteže koji prikazuju samo jedno utjelovljenje, gdje: The invention is described in more detail below with reference to the drawings showing only one embodiment, where:

Slika 1 prikazuje vitrinu za izlaganje robe sukladno izumu u obliku hlađene vitrine, u perspektivi i Figure 1 shows a showcase for displaying goods according to the invention in the form of a refrigerated showcase, in perspective i

Slika 2 prikazuje detalj Slike 1 u presjeku. Figure 2 shows a detail of Figure 1 in section.

Na slikama je prikazana vitrina za izlaganje robe koja je konstruirana kao hlađena vitrina. U kontekstu opisa na neograničavajući način vitrina za izlaganje robe ima rashladni kanal 1 koji je pokriven prostorom za izlaganje robe 2 i/ili površinom na kojoj stoji roba 2. Nadalje, dodatne površine na kojima stoji roba 2' smještene su iznad istog. U i/ili na rashladnom kanalu 1 nalazi se rashladni uređaj 3 u obliku rashladne jedinice s ventilatorom ili koja proizvodi cirkulaciju zraka koji struji preko prostora za izlaganje robe i/ili odgovarajuće površine na kojoj stoji roba 2, 2'. Na pojedinim prostorima za izlaganje robe 2, 2' prikazane su pojedine robe 4 koje se trebaju hladiti, a koje kupac može izvaditi iz vitrine za izlaganje robe putem pripadajućih otvora za vađenje 5. U prostoru odgovarajućeg otvora za vađenje 6, postavljen je rasvjetni uređaj 6 kako bi se roba 4 izložena u prostoru za izlaganje robe 2, 2' izložila pod pravim svjetlom. The pictures show a showcase for displaying goods, which is constructed as a refrigerated display case. In the context of the description, in a non-limiting manner, the showcase for displaying goods has a cooling channel 1 that is covered by the space for displaying goods 2 and/or the surface on which the goods stand 2. Furthermore, additional surfaces on which the goods stand 2' are located above it. In and/or on the cooling channel 1 there is a cooling device 3 in the form of a cooling unit with a fan or which produces air circulation that flows over the space for displaying the goods and/or the corresponding surface on which the goods stand 2, 2'. Individual goods 4 that need to be cooled are displayed in individual areas for displaying goods 2, 2', and which the customer can take out of the display case for displaying goods through the corresponding opening for removal 5. In the area of the corresponding opening for removal 6, a lighting device 6 is placed in order for the goods 4 displayed in the goods display area 2, 2' to be displayed under the right light.

U okviru izuma rasvjetni uređaj 6 je temeljen na LED diodama, odnosno to je LED rasvjetni uređaj 6. U longitudinalnom produžetku vitrine za izlaganje robe, taj LED rasvjetni uređaj ima više LED dioda 7 koje su postavljene u nizu i/ili paralelno na traci 8 (vidi Sliku 2). Uređaj za napajanje strujom postavljen je ispod te trake 8. Taj uređaj za napajanje strujom ima blok konstrukciju i ima najmanje jedan pretvarač struje glavnog voda i ispravljač, koji nisu posebno prikazani. Within the framework of the invention, the lighting device 6 is based on LEDs, that is, it is an LED lighting device 6. In the longitudinal extension of the showcase for displaying goods, this LED lighting device has several LEDs 7 that are placed in series and/or parallel on the strip 8 ( see Figure 2). A power supply device is placed below that strip 8. This power supply device has a block construction and has at least one main line current converter and rectifier, which are not separately shown.

Pomoću glavnog pretvarača struje može se izvršiti padajuća transformacija napona glavnog voda (u pravilu izmjenična struja napona od 220 volta) u vrijednosti kompatibilne s LED diodom 7 od nekoliko volti. Osim toga, ispravljač postavljen niže brine se da se pojedine LED diode 7 napajaju potrebnom niskonaponskom istosmjernom strujom. Traka 8 na kojoj se nalaze pojedine LED diode 7 s uređajem za napajanje strujom 9 ispod nje je u cijelosti zatvorena kućištem lampe 10, oko koje struji cirkulirajući hladni zrak pa je rasvjetni uređaj 6 u cijelosti hlađen učincima već opisanima u uvodu. By means of the main current converter, a step-down transformation of the main line voltage (usually 220 volt alternating current) to a value compatible with the LED diode 7 of several volts can be carried out. In addition, the rectifier placed below ensures that the individual LEDs 7 are supplied with the necessary low-voltage direct current. The strip 8 on which there are individual LEDs 7 with the power supply device 9 below it is completely closed by the lamp housing 10, around which circulating cold air flows, so the lighting device 6 is completely cooled by the effects already described in the introduction.

Zapravo je kućište lampe 10 na vrhu zatvoreno prozirnim pokrovom 12, koji je u ovom slučaju konstruiran kao optički sustav 12. LED diode 7 u kombinaciji se trakom 8 te uređajem za napajanje strujom 9 smještene su u unutrašnjosti kućišta lampe 10. Kroz otvore 11 u kućištu lampe 10, hladni zrak koji u svakom slučaju cirkulira kućištem 1 vitrine za izlaganje robe sada može ući u odgovarajuće kućište lampe 10. U tom pogledu otvori 11 su u pravilu postavljeni u smjeru strujanja hladnog zraka, primjerice na suprotnim prednjim stranama i ravnim stranama kućišta lampe 10, kako je prikazano na Slici 2. In fact, the lamp housing 10 is closed at the top by a transparent cover 12, which in this case is constructed as an optical system 12. The LEDs 7 in combination with the strip 8 and the power supply device 9 are located inside the lamp housing 10. Through openings 11 in the housing lamp 10, the cold air which in any case circulates through the housing 1 of the display case can now enter the corresponding lamp housing 10. In this regard, the openings 11 are generally placed in the direction of the flow of cold air, for example on the opposite front sides and flat sides of the lamp housing 10, as shown in Figure 2.

Kućište lampe 10 ima bazu u obliku slova U u presjeku, zatvorenu prozirnim pokrovom 12 koji je u presjeku zaobljen, U ovom slučaju, prozirni pokrov i/ili optički sustav 12 konfiguriran je kao prizmatični optički sustav, kao što to jasno pokazuje povećani detalj na Slici 2. Na taj način kut zračenja pojedinih LED dioda 7 shematski prikazan na Slici 2 od cca. 70° do 80° može se povećati na vrijednosti od 100° do 120°. Osim toga, napajanje kućišta lampe 10 i/ili uređaja za napajanje strujom 9, a tako i LED dioda 7 električnom energijom može se vršiti putem otvora 11 pa je za te otvore 11 predviđena dodatna namjena. The lamp housing 10 has a U-shaped base in cross-section, enclosed by a transparent cover 12 which is rounded in cross-section. In this case, the transparent cover and/or the optical system 12 is configured as a prismatic optical system, as clearly shown in the enlarged detail of FIG. 2. In this way, the radiation angle of individual LEDs 7 shown schematically in Figure 2 from approx. 70° to 80° can be increased to values from 100° to 120°. In addition, the lamp housing 10 and/or the power supply device 9, as well as the LED diode 7, can be supplied with electricity through the openings 11, so these openings 11 have an additional purpose.

Optički sustav 12 u kombinaciji se uređajem za napajanje strujom 9 i LED diodama 7 (kao i trakom 8 i kućištem lampe 10) tvori kompaktan podsklop i/ili modul za postavljanje 7, 8, 9, 10, 11, 12 koji je spreman za rad i koji se može pričvrstiti izravno na gornji dio otvora za vađenje 5 iza pokrova 13, kako je to prikazano na Slici 2. Istovremeno, zahvaljujući ovog utjelovljenju rasvjetni uređaj 6 sukladno izumu ovdje bi trebao zamijeniti konvencionalne fluorescentne lampe. Ono što nije prikazano je prigušivač koji pripada uređaju za napajanje strujom 9 i upravlja snagom LED dioda 7 prema potrebi. U tom se pogledu podrazumijeva da prigušivač može raditi izvana. The optical system 12 combined with the power supply device 9 and the LEDs 7 (as well as the strip 8 and the lamp housing 10) forms a compact sub-assembly and/or mounting module 7, 8, 9, 10, 11, 12 which is ready for operation. and which can be attached directly to the upper part of the extraction opening 5 behind the cover 13, as shown in Figure 2. At the same time, thanks to this embodiment, the lighting device 6 according to the invention should here replace conventional fluorescent lamps. What is not shown is the dimmer that belongs to the power supply device 9 and controls the power of the LEDs 7 as needed. In this regard, it is understood that the silencer can work from the outside.

LED diode 7 su u znatnoj mjeri prilagođene spektru radijatora crnog tijela na temperaturi od oko 4000 kelvina pa tako daju toplu bijelu boju koju ljudsko oko percipira kao posebno ugodnu i prirodnu. Uslijed toga, roba 4 izložena u prostoru za izlaganje robe 2 i hlađena putem rashladnog uređaja 3 kupa se u posebno ugodnom svjetlu koje daje rasvjetni uređaj 6. LED diodes 7 are to a considerable extent adapted to the spectrum of black body radiators at a temperature of about 4000 kelvin, thus giving a warm white color that the human eye perceives as particularly pleasant and natural. As a result, the goods 4 displayed in the goods display area 2 and cooled by the cooling device 3 are bathed in a particularly pleasant light provided by the lighting device 6.

U tom pogledu, rasvjetni uređaj 6 sukladno pogledu prema Slici 2 postavljen je pod kosim kutom a u usporedbi s dodatnom površinom na kojoj stoji roba 2' postavljenom iznad površine na kojoj stoji roba 2, s time da a može usvajati vrijednosti od cca. 30° do 60°, po mogućnosti 40° do 50°, a kako bi se u kombinaciji s kutom zračenja od 100° do 120° ostvarenim na vanjskoj strani optičkog sustava i/ili prizmatičnog optičkog sustava 12 ostvarila osvijetljen ost jedinice za izlaganje robe 2 sve do najdaljih područja. In this respect, the lighting device 6 according to the view according to Figure 2 is placed at an oblique angle a compared to the additional surface on which the goods stand 2' placed above the surface on which the goods 2 stands, with the fact that a can adopt values of approx. 30° to 60°, preferably 40° to 50°, and in order to, in combination with the radiation angle of 100° to 120° realized on the outside of the optical system and/or prismatic optical system 12, illuminate the axis of the product display unit 2 all the way to the most distant areas.

Claims

1. A container for displaying goods, especially a refrigerated counter, with a housing (1) and a lighting device (6) based on LED technology, and with a cooling device (3), with the fact that the lighting device (6) is located in the area of the opening (5) for taking out goods (4) and with the fact that the lighting device (6) has a housing for lamps (10), which is on the front side closed with a transparent cover (12) and which has individual LED light diodes (7) inside as well as a power supply device (9) for the LED light diodes (7), indicated by the fact that the lamp housing (10) is equipped inlet openings (11) for cooling air circulating in the housing (1).

2. A container for displaying goods according to claim 1, characterized in that the inlet openings (11) are located on the opposite sides of the lamp housing (10), primarily in the direction of the cooling air flow.

3. Container for displaying goods according to claim 1 or 2, characterized in that the strip (8) with many LED light diodes (7) is included together with the power supply device (9) in one built-in unit (7, 8, 9 ).

4. A container for displaying goods according to one of claims 1 to 3, characterized by the fact that the light emanating from individual LED light diodes (9) spreads like a fan across the front glass surface (12).

5. A container for displaying goods according to claim 4, characterized by the fact that the glass surface (12) is designed as a prismatic glass (12) and that the radiation angle of individual LED light diodes (7) increases to about 100° to 120° or more .

6. Container for displaying goods according to one of claims 1 to 5, characterized in that the power supply device (9) has at least one mains transformer and one rectifier.

7. Container for displaying goods according to claim 6, characterized in that the power supply device (9) additionally has a dimmer for controlling the power of the LED light diodes (7).

8. A container for displaying goods according to one of claims 1 to 7, characterized in that the LEDs are designed as LEDs with white light.

9. A container for displaying goods according to one of claims 1 to 8, characterized by the fact that the LED light diodes (7) are adapted to the spectrum of the black radiation with a temperature of about 4000 Kelvin.

10. A container for displaying goods according to one of claims 1 to 9, characterized in that the lighting device (6) is located in the front part of the extraction opening (5) behind the screen (13).