DE102010054677A1 - Lamp for a lamp - Google Patents

Abstract

A lamp (10) for a lamp with a lampholder body (11) and a lampholder (16) is described and illustrated, the lampholder (16) serving on the one hand to arrange the lampholder body (11) in a lamp and on the other hand having latching means that can be released engage in counter-latching means of the socket body (11) and the socket body (11) has connection contacts for connection lines and carries electronics (14) which serve to control a lamp held by the socket body (11), the socket body (11) being an LED Carries light source and is provided with an integrated heat sink, which dissipates the operating heat from a heat-conducting element of the LED light source.

Description

The invention relates to a light source for a lamp with a socket body and a socket cover, the socket cover on the one hand, the arrangement of the socket in a light and on the other hand has latching means which engage releasably in counter-locking means of the socket body and wherein the socket housing has connection contacts for connection lines and an operating electronics carries, which serves to control a lamp held in the socket.

Frames for generic bulbs are for example from the Applicant's Catalog 2008-2011, Section 3, "Sockets for Compact Fluorescent Lamps" pages 39 and 40, for example, under article number 26.103 offered. These sockets correspond to the type G24 or GX24 and have an integrated control gear for compact fluorescent lamps to be used.

Such bulbs are used in addition to the general living room lighting, especially in the field of gastronomy and hotel lighting. The gastronomy and hotel industry often aligns their homes with luminaires designed for a specific ambience. These lights are usually found in every building in a company and contribute - among other, style-forming elements - to a certain recognition of the customer.

In order to reduce energy costs, existing incandescent lamps were often replaced by compact fluorescent lamps, so-called "retro-fit lamps". The problem arose that lamps with integrated ballast and in combination with an Edison socket could not be used in the lamps based on incandescent lamps due to their size. In addition, it occasionally came to the theft of comparatively expensive compact fluorescent lamps or to replace incandescent lamps for example by hotel guests.

These problems could be addressed by the use of generic bulbs, since the displacement of the ballast in the socket body allows a significant reduction in the size of the lamps. The use of non-common socket / socket systems (eg G24, GX24) reduced the theft frequency of the compact fluorescent lamps used. Using the new sockets or even retrofitting existing luminaires was easy as the new sockets merely had to be clipped onto the sockets usually found in the luminaires.

The development of new lamps, in particular the development of powerful LED light sources for room and effect lighting, attracts a need for corresponding solutions for living room lighting but also especially for the catering and hotel industry.

The object of the invention is therefore to provide a new light source for retrofitting existing lights or for equipping new lights, which has the advantages of the known versions and compact fluorescent lamps and meets the requirements of modern LED light sources.

The object is achieved by a lamp having the features of claim 1, in particular with the characterizing features, according to which the socket body carries an LED lamp and is provided with an integrated heat sink, which dissipates the heat of operation of a heat-conducting element of the LED light source.

This light source first ensures that the operating heat of the LED light source is sufficiently dissipated, which is a prerequisite for a long life of the LED. Due to the supported by the socket body operating electronics, small-sized LED light sources can be used. The proposed invention solution does not require more space than a commercial incandescent lamp. Thus, the retrofitting of existing lights is not a problem. Due to the non-existent standard base / socket systems, the theft risk for the LED light source is low.

From the printed also not verifiable, obviously pre-used prior art LED lamps are known, which are provided for use in conventional Edison sockets with a corresponding threaded socket. These lamps adheres to the aforementioned disadvantage that the size usually does not correspond to the lamp to be replaced. In addition, there is also the danger here that these high quality aftermarket lamps are exchanged unauthorized against standard lamps. Such bulbs are known under the name "retro-fit lamps".

Preferred is an embodiment in which the socket body itself is designed as a heat sink. A high cooling capacity with simple frame production is the main advantage of this embodiment.

In development of the aforementioned embodiment it is provided that the socket body at least in sections with externally circumferential, extending in the circumferential direction of the cooling fins is provided. This fin arrangement promotes air circulation between the ribs in a horizontal illuminant arrangement in a luminaire.

A first variant of the aforementioned embodiment is characterized in that the lighting means with a standardized external thread - for example after IEC standard 60399 - Is provided, which in cooperation with Überwurfringen the holder of lighting parts, such as lamp shades, and additionally has the function of oberflächenvergrößernden cooling fins, especially if the thread of the socket has a relation to the threaded inner diameter of the coupling ring reduced core size, so that the threaded ridge for Promotion of heat dissipation has increased surface area.

Alternatively, it is provided that the socket body is provided externally circumferentially with lampslängsaxial cooling fins, in particular, when the radially directed outer surfaces of the cooling fins with threaded portions of a standardized external thread - for example IEC standard 60399 - Are provided, which in cooperation with Überwurfringen the holder of lighting parts, such as lampshades, serves. This cooling rib arrangement promotes air circulation with lamps arranged vertically in a luminaire.

Particularly preferred is an embodiment in which the LED and the socket form a non-destructively non-separable unit. This has the significant advantage that the frame manufacturer is responsible for the assembly of the LED and makes this professional. Here, a defined contact pressure between the LED light source, in particular its heat-conducting element, and the socket-side heat sink is important in order to ensure a sufficient heat transfer. In so far, it is alternatively provided that the socket housing and the LED form a preassembled, structural unit, which is possibly separable using a special tool. The design of the light source as a structural unit of lamp and socket can be realized in particular by an identically dimensioned life of the operating electronics and LED. Since the technical design and the installation of the LED is carried out by the socket manufacturer, this can ensure the manufacturing quality of the light source.

It is conceivable that the LED, with the interposition of a film provided with conductor tracks, is applied directly to a carrier area formed by the socket housing.

It is conceivable that the operating electronics for the LED forms an assembly unit with the LED itself.

It is advantageous if the coupling ring is designed as an additional heat sink or serves as a thermal bridge for dissipating the heat from the socket body to other parts of the lamp.

It is provided that the socket body has a connection for a protective conductor. This is initially advantageous for the production, since more favorable requirements are placed on the electrical insulation when grounding the socket body. In addition, the grounded socket body protects the operating electronics to control the LED from electromagnetic interference. Furthermore, sensitive electrical appliances are protected by a grounded Fassunsgkörper against electromagnetic fields of the operating electronics of the LED.

To explain the invention, reference is made to the following description of exemplary embodiments. Show it:

1 Exploded view of a luminous means according to the invention,

2 the illuminant according to the invention 1 in compound form,

3 a perspective view of the socket body of the lamp according to 1 and 2 .

4 a side view of the socket body according to 3 .

5 a sectional view of the socket body according to section line IV-IV in 4 .

6 the perspective view of an alternative socket body,

7 the side view of the socket body according to 6 .

8th a sectional view of the socket body in 7 according to section line VII-VII,

9 an alternative embodiment of the luminous means according to the invention,

10 an axial section of the socket according to 2

In the figures, a luminous means according to the invention is indicated in its entirety by the reference numeral 10 Mistake. As far as subsequent embodiments of the invention are described, the term bulbs is understood to mean the entirety of the socket and the lamp.

The light source 10 is in 1 shown in an exploded view. In detail, the illuminant includes 10 first a socket body 11 , which is a substantially central recording room 12 forms. In the recording room 12 leaves a container 13 use, in particular the electronic components of a control gear against the metallic socket body 11 electrically isolated. The operating device is identified by the reference number 14 Mistake. A cap 15 serves to close the container 13 after mounting the operating device in its interior. A mounting hood 16 is part of the socket body 11 and its arrangement in a lamp, not shown, serves. Around the metallic socket body 11 to earth, is a protective conductor terminal 17 intended.

On the mount hood 16 opposite side of the socket body 11 is an LED arranged on a board 18 mounted, their connecting wires 19 with the operating device 14 are connected. The LED 18 is by means of screws 20 on the socket body 11 secured. A diffuser 21 covers the LED 18 protects against damage and can be used by appropriate design of the defined light orientation. The Überwurfring 22 serves to hold luminaire parts, such as lampshades, on the socket body 11 ,

In 2 is the illuminant according to the invention 10 of the 1 shown in mounted view. The LED 18 is from the diffuser 21 , which on the socket body 11 is attached, touch-safe covered. The operating device 14 is with his container 13 in the recording room 12 of the socket body 11 arranged. The socket body 11 is on the bottom side with the socket hood 16 locked. The one internal thread 24 having a winning ring 22 is on the in 2 of individual thread segments 23 formed external thread 35 of the socket body 11 screwed.

In this preferred embodiment form LED light source 18 and the associated socket body 11 a structurally possibly with a special tool separable unit. The socket manufacturer assembles the light source 10 completely before. An exchange of the LED 18 by the customer is not provided. This makes the bulb 10 Extremely easy to use and easy to handle. Because the mounting of the LED 18 on the socket body 11 is carried out professionally by the manufacturer, is the heat transfer from the LED required for the maximum life 18 ensured to a heat sink. The heat transfer is in particular on the correct contact pressure of the LED 18 secured to the heat sink. As a heat sink in the described embodiments is basically the socket body 11 , which is for this purpose made of a suitable material, in particular a metal, such as aluminum. However, there are known ceramics with good thermal conductivity, so that a ceramic socket body 11 as a heat sink into consideration.

In contrast to the generic state of the art, where socket and lamp form structurally separate units and the lamp is changeable, there is no need in the invention, since the life of the LED 18 that of the operating electronics of the operating device 14 equivalent.

In the 3 to 5 is the socket body 11 according to 1 and 2 shown in detail.

3 is a perspective view of the socket body 11 with a view of the usually of the hood 16 closed bottom 12 , 4 is the associated side view. It can be seen in both figures that the socket body 11 Lamp-longitudinally aligned, the socket body surface greatly increasing cooling fins 25 each having a channel between them 26 form.

The radially outward surface 27 the cooling fins 25 carry thread segments 23 that together the external thread 35 of the socket body 11 form, on which, as already described, a Überwurfring 22 can be screwed on. Also these thread segments 23 with their thread and Gewindestegabschnitten enlarge the outer surface of the socket body 11 and thus contribute to improved heat dissipation.

The detent pockets provided with locking means 28 of the socket body 11 serve the arrangement of the socket body 11 at the with latching tabs 29 provided socket hood 16 , For this purpose, the locking tabs 29 in the catch pockets 28 one.

5 shows an axial section through the socket body 11 according to section line IV-IV in 4 , This representation is to be seen first that the socket cover 16 opposite top of the socket body 11 a flat mounting surface 30 for arranging the LED mounted on a board 18 having. The the mounting surface 30 breaking holes 31 serve to hold the board by means of screws 20 and to carry the wires 19 in which the operating equipment 14 holding container 13 , This sits in the recording room 12 of the socket body 11 one.

The mounting surface 30 is from a collar 32 surrounded, as a positioning aid for mounting the LED 18 serves and a locking groove 33 for fixing the diffuser 21 formed.

The lamp-length-axially aligned cooling fins 25 are in particular in a vertical orientation of the lamp 10 advantageous. The heat of operation of the bulb 10 creates a circulation of air between the cooling fins 25 ,

The 6 to 8th show an alternative embodiment of the socket body 11 , This is identical in its basic construction with those of the previous figures. The main difference is the formation of cooling fins and the screwing on the coupling ring 22 provided external thread 35 , In the following, therefore, only these differences will be discussed.

6 is like 3 a perspective view from below of the socket body 11 , 7 is the associated side view, 8th represents an axial section corresponding to section line VII-VII in 7 represents.

Instead of lamp-longitudinal axial cooling channels 25 at their radially outward-facing surface 27 thread segments 23 Carry, forms the external thread of the socket body 11 Cooling fins. For this purpose, the Gewindekernmaß compared to the inner diameter of the internal thread 24 of the surrender ring 22 significantly reduced. The thread 36 has therefore been cut beyond the required extent, the threaded rib 37 is clearly excessive. In this way, directed substantially transversely to the lamp longitudinal axis L, through the threaded rib 37 formed cooling fins available.

This embodiment of the socket body 11 is particularly suitable for vertical alignment of the bulb 10 ,

An alternative embodiment of the socket body 11 is in the overall view of a light bulb 10 in 9 shown. Here the socket body comprises 11 one according to the description of the 6 to 8th trained threaded section 38 , By a correspondingly reduced core dimension forms the thread rib 37 of the threaded portion 38 corresponding cooling ribs.

The socket body 11 additionally forms a cooling section 39 out, which directly adjoins the under the diffuser 21 mounting surface for an LED 18 followed. In this area are circumferential grooves 40 into the surface of the socket body 11 incorporated, whereby substantially transverse to the lamp longitudinal axis L aligned cooling ribs 41 are formed.

The essential advantage of this embodiment is the fact that the cooling section 39 optimized for optimal heat dissipation.

10 is an axial longitudinal section through the bulb 10 according to 2 , The above-described components are shown again here. To be received here in particular on the in a protective conductor connection chamber 42 self-contained protective earth terminal 17 , The protective conductor connection chamber 42 is partially through the container 13 and partially through a correspondingly machined portion of the inner surface of the socket body 11 educated.

The socket body 11 itself is the better thermal conductivity because in a preferred embodiment made of a suitable metal. This is aluminum in particular.

Will the bulb 10 by connecting a protective conductor to that with the socket body 11 electrically conductive protective earth terminal 17 Tied, is the socket body 11 grounded. This has significant advantages for the operation, since on the one hand the operating electronics of the operating device 14 protected against electromagnetic interference from the outside. In return, a grounded socket housing protects 11 in the area of the bulb 10 electronic equipment in front of the electromagnetic fields of the lamp 10 ,

Manufacturing technology see the corresponding safety regulations for grounded metallic socket body 11 more favorable insulation distances between electrical components and the socket body 11 even before, which is of considerable advantage.

In all embodiments, as far as presentation technology possible, an LED 18 shown, in which the actual photoelectric element is arranged on a circuit board. Such LEDs 18 are available as standard components, the board is usually an aluminum body, which serves as a heat conducting element for heat dissipation of the LED 18 on a downstream heat sink is used.

It is provided in an embodiment, not shown, to dispense with such a board. Instead, it is conceivable and of considerable advantage, the photoelectric element with the interposition of an insulating film provided with conductor tracks for the electrical connection directly to the mounting surface 30 of the metal socket body 11 applied. Possible deterioration of heat dissipation due to the transition from the PCB of the LED shown in the illustrations 18 on the serving as a heat sink socket body 11 are so excluded.

As can be concluded from the above, the invention realizes Lamp 10 many advantages. First, a socket body 11 created, which is intended for use in residential lighting, especially for the use of gastronomy and hotel lighting. The currently widely used, intended for compact fluorescent lamps versions can be replaced accordingly and the lights are equipped with small-sized LED light sources. Since the operating electronics of the socket body 11 even worn, the bulbs are no larger than the conventionally used Edison lamps. There is even the possibility to make the bulbs more compact. In the event that the LED light source fails, it is easily interchangeable by skilled workers with tools. The advantages of the prior art are retained. The conversion is easy and the risk of theft of the comparatively high-quality lamps is low due to the lack of simple screw mounting.

However, the particularly preferred embodiment of the invention is characterized in that the LED light source and the socket body 11 form a possibly with a special tool, but preferably non-destructively non-separable unit. Since the dissipation of the operating heat of LEDs is essential to realize theoretically achievable operating time, the manufacturer is responsible for a correct design and mounting of the LED on the serving as a heat sink socket body 11 Care taken. It depends in particular on the correct contact pressure between the LED own board and the socket body 11 to ensure good heat transfer. Considering these circumstances, since the life of the LED corresponds to that of the operating electronics, the possibility of a component replacement does not matter. A damaged bulb 10 will be completely replaced accordingly. This can be easily accomplished by the use of existing in the lights and from the prior art well-known and correspondingly standardized socket covers.

On the advantages of a protective conductor terminal, by means of which the socket body 11 grounded, has already been discussed in detail.

Ultimately, the use of LEDs, which already carry the operating electronics on their board, offers further significant advantages. First, the assembly is simplified because a separate operating device is not required. In addition, the socket body can be 11 , in which then the receiving space is no longer required, even better construct an optimal heat dissipation.

LIST OF REFERENCE NUMBERS

10

Lamp

11

socket body

12

accommodation space

13

Container

14

control gear

15

cap

16

version hood

17

Ground terminal

18

LED

19

Lead wire

20

screw

21

diffuser

22

Coupling ring

23

thread segments

24

inner thread

25

Lamp longitudinal axial cooling fins

26

channel

27

radially facing outer surface of 25

28

detent pockets

29

locking tabs

30

mounting surface

31

drilling

32

collar

33

locking groove

34

35

external thread

36

thread

37

thread ridge

38

threaded portion

39

cooling section

40

circumferential grooves

41

cooling fins

42

Protective conductor connection chamber

e

enlarged 10

L

lamp longitudinal axis

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited non-patent literature

• Applicant's Catalog 2008-2011, Section 3, "Lampholders for Compact Fluorescent Lamps", pages 39 and 40, for example, under article number 26.103 [0002]
• IEC standard 60399 [0013]
• IEC standard 60399 [0014]

Claims (12)

Bulbs ( 10 ) for a luminaire with a socket body ( 11 ) and a socket hood ( 16 ), wherein the socket hood ( 16 ) on the one hand the arrangement of the socket body ( 11 ) in a light and on the other hand has latching means which releasably in counter-latching means of the socket body ( 11 ) and wherein the socket body ( 11 ) Has connection contacts for connection lines and with an electronics ( 14 ), which controls the control of the socket body ( 11 ) is held, characterized in that the socket body ( 11 ) carries an LED light source and is provided with an integrated heat sink, which dissipates the operating heat from a heat conducting element of the LED light source. Illuminant according to claim 1, characterized in that the socket body ( 11 ) itself is designed as a heat sink. Illuminant according to claim 1 or 2, characterized in that the socket body ( 11 ) is provided at least in sections with outer circumferential, extending in the circumferential direction of cooling fins. Illuminant according to one of claims 1 to 3, characterized in that the socket body ( 11 ) with a standardized external thread ( 35 ) - for example, according to IEC standard 60399 - is provided, which in cooperation with Überwurfringen ( 22 ) of the holder of lighting parts, such as lampshades, serves and additionally has the function of surface enlarging cooling fins. Illuminant according to claim 4, characterized in that the external thread ( 35 ) of the socket body ( 11 ) a relative to the threaded inner diameter of the coupling ring ( 22 ) has reduced core size, so that the threaded ridge has an enlarged surface to promote the heat dissipation. Illuminant according to claim 1 or 2, characterized in that the socket body ( 11 ) externally with lamp-longitudinal axial cooling fins ( 25 ) is provided. Illuminant according to claim 6, characterized in that the radially directed outer surfaces of the lamp longitudinal axial cooling ribs ( 25 ) with threaded portions of a standardized external thread ( 35 ) - for example, according to IEC standard 60399 - are provided, which in conjunction with Überwurfringen ( 22 ) of the holder of lighting parts, such as lampshades, is used Illuminant according to one of the preceding claims, characterized in that the socket housing ( 11 ) and the LED light source form a non-destructively non-separable structural unit. Illuminant according to claim 8, characterized in that the LED ( 18 ) is applied directly to a provided by the socket housing carrier area with the interposition of a film provided with tracks. Illuminant according to claim 9, characterized in that operating electronics for the LED ( 18 ) an assembly unit with the LED ( 18 ) forms itself. Illuminant according to one of claims 4, 5 or 7, characterized in that the coupling ring ( 22 ) as a thermal bridge for dissipating the heat from the socket body ( 11 ) is used to other parts of lights. Illuminant according to one of the preceding claims, characterized in that the socket body ( 11 ) has a connection for a protective conductor.

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