CN104713012A

CN104713012A - Lighting device

Info

Publication number: CN104713012A
Application number: CN201410790323.5A
Authority: CN
Inventors: 杰罗姆·穆热尔; 尼古拉斯·普里厄; 鲍里斯·布拉索
Original assignee: Legrand SA; Legrand France SA
Current assignee: Legrand SA; Legrand France SA
Priority date: 2013-12-17
Filing date: 2014-12-17
Publication date: 2015-06-17
Also published as: FR3015002A1; FR3015002B1; EP2886942A1

Abstract

The present invention relates to a lighting device (1) characterized in that it comprises: a support (2) having a rear wall (3) on a basic plane within a reference plane (P) and at least a sidewall (4) on a side opposite to the rear wall (3) for defining an interior space (5) and defining a closed contour (6) of an opening (7), an illumination system (8) comprising at least one electrical device (9) supporting a plurality of light sources (10) supported by the side wall (4) of a support (2), directed towards the interior space (5), and distributed along all or part of the closed contour (6), a diffuser (11) arranged to close the opening (7) of the support (2) and adapted to be passed through by lights, and at least one reflector (12) located in the interior space (5) limited by the support (2) and the diffuser (11) and used for reflecting the lights from the light sources (10) towards the diffuser (11), and the reflector (12) and the support (2) define a chamber (13) for containing the electric mechanism (9) together.

Description

Lighting device

Technical field

The present invention relates to lighting device.

Background technology

Know such as the ambient lighting of public or private site (such as, corridor) or the lighting device of emergency lighting.

The problem that such lighting device runs into is its overall dimensions.In fact, device relative to support its border surface (such as wall or ceiling) outstanding more mainly with and volume larger, user look more lack attractive in appearance.For this reason, implementing one of this lighting device, to manufacture restriction be that device should be smooth as far as possible to limit its outstanding relative to border surface.

But the overall dimensions reducing lighting device makes these devices stand the glare problem caused by illumination itself usually.In fact and especially, when light source is placed on diffusing globe when very little distance, in this case, seem as a lot of light " spot ", as there is the light source on diffusing globe, it will be visible to user subsequently.And in this case, brightness is too high makes its user feel dazzling.

When the light source of lighting device is light emitting diode (LED), this problem is more serious.In fact, in such an embodiment, the quantity of light source can be very large, and therefore will there is a large amount of spots, and this will amplify the inaesthetic effect (as brightness) caused by spot.

And, in the face of this problem, can mobile light source with away from diffusing globe.But this will have the overall dimensions increasing lighting device on the one hand and reduce the result of the intensity of luminous flux on the other hand when it illuminates its user by diffusing globe.

In order to solve the problem of dazzle, lens, reflector or milky diffusing globe also can be used.

In fact, lens make it possible to converged light flux, however, still can cause strong dazzle.Still can mobile lens away from diffusing globe, but this only for infringement its overall dimensions feasible.

On the contrary, reflector make it possible to reduce dazzle effect and differently dispersion leave the luminous flux of lighting device.But reflector makes to guide the light from light source and its effect is therefore much smaller.

And, glare effect can be reduced by the milky changing astigmatism body.But, the efficiency of this lighting device also reduced and cause the increase of product internal temperature.

Another defect of such device is the electric mechanism making its overall dimensions become large lighting device, particularly in the case of an led lighting source.In fact, when LED, the problem of volume is relatively more serious, and reason is that the electric mechanism of powering to these LED is larger than the electrical structure volume of the lighting device being equipped with the light source of the other types of such as fluorescent tube or incandescent lamp (it needs very simple electric supply installation or is even connected directly to electrical power and provides the brightness be substantially equal to).

Summary of the invention

Device described herein is intended to solve some or all shortcoming of the prior art, and be intended to especially such as with simple and reliably mode produce the following lighting device for surrounding environment or Emergency Light: can reduce its overall dimensions, provide relatively high luminous flux to think user provides enough light and avoids the phenomenon of any dazzle simultaneously.

For this reason, the present invention is made up of lighting device, and this lighting device comprises:

-support member, has the rear wall of the basic plane be included in reference planes, and limits at least one sidewall of inner space, and this sidewall limits the closed outline of opening at the offside of rear wall;

-illuminator, comprises at least one electric mechanism, the multiple light source power supplies of this electric mechanism for being carried by the sidewall of support member, light source inwardly spatial orientation and along all or part of cloth of closed outline;

-diffusing globe, is arranged to the opening of closed support member and is adapted to be light through it; And

-at least one reflector, is positioned to be reflected towards diffusing globe by the light from light source in the inner space limited by support member and diffusing globe,

Reflector limits chamber together with support member, and electric mechanism is contained in chamber interior.

Reference planes preferably correspond to the plane substantially parallel with the plane (such as, wall or ceiling) of the border surface of bracing or strutting arrangement.

And, in such an embodiment, light source is laterally arranged and is pointed to inner space, and reflects towards diffusing globe from the light of these light sources, diffusing globe is placed on the level place of the opening relative with rear wall, and this makes described light source can be moved away from diffusing globe itself.Therefore, any dazzle or light " spot " effect is eliminated.

The light carrying out the light source of free sidewall carrying is reflected, and these light sources provide indirectly illumination and the illumination of lighting device is uniform.

And the inner space substantially limited by support member and diffusing globe is divided into two complementary intermediate spaces by reflector subsequently: the light from light source can be advanced in the first interior volume, second space corresponds to the chamber holding electric mechanism.

The electric mechanism held by this way in the chamber combines can reduce overall dimensions with the fact of light source arrangement on sidewall not directly after expander, and this lighting device for the little thickness of design is especially favourable.At this, term " thickness " refers to the distance between the rear wall of support member and diffusing globe.

The inner chamber holding electric mechanism is advantageously basic to be limited by means of only reflector and support member (more specifically, by the rear wall of reflector and support member).

Express " substantially only " and refer to that chamber is limited by reflector and support member, the parts of insignificant size compared with the size of described chamber may be utilized to be partially formed the border of this chamber.This is such as that thin seal is placed between reflector and support member.

According to a specific feature, reflector has the cross section towards the overall concave shape of rear wall side in the cutting plane being basically perpendicular to reference planes, makes described reflector limit the inner chamber holding electric mechanism together with the described rear wall of support member.

Its middle chamber comprises this structure in the space limited by the rear wall (that is, not being sidewall) of the reflector of overall concave shape and only support member, advantageous particularly time in light source arrangement opposing sidewalls in the portion.By this way, the volume of chamber is optimized for the electric mechanism of closed lighting device particularly.

More advantageously, the reflector of overall concave shape comprises:

Zero remains on the lower bottom base on support member, preferably in the level of its rear wall, and is positioned in the assembling position of adjacent sidewalls; And

Zero top edge, is arranged in the assembling position near diffusing globe.

This structure makes it possible to the brightness improving lighting device by increasing reflective surface area, optimizes the inner space of chamber to be contained in wherein by electric mechanism simultaneously.

In a concrete structure, the lower bottom base of reflector is formed by assembling and keeps the technique of each parts of the lighting device of assembly to keep.In this case, can " being clipped in the middle " at assembly process at least partially of this lower bottom base, thus keep reflector wall rearward.In another embodiment, lower bottom base is kept and is fixed to support member (particularly, rear wall) by such as elasticity handle (elastic lug), to press from both sides the lower bottom base of reflector to rear wall.

The feature favourable according to another, the reflector of overall concave shape has at the level place of its base more than the large inclination of the inclination at the level place at edge thereon.

By this way, concave shape is overall domed shape.Be preferably the shape of planarized dome.

In a concrete structure, electrical structure comprises at least one power circuit of illuminator and the circuit for monitoring or control light source.

In a concrete layout, power circuit comprises at least one battery.Particularly for the situation of emergency lighting device, the latter needs auxiliary electrical power supply.

More advantageously, reflector has at least partly and the cross section comprised continuously as lower part in the cutting plane being basically perpendicular to reference planes:

-Part I, is positively correlated with reference planes (P) and negative tilts the several years about sidewall (4), and the light of Part I reflection is from sidewall; And

-Part II, is positively correlated with reference planes (P) and negative tilts about sidewall (4), and the light of Part II reflection is from sidewall;

Second sloping portion has the strict gradient larger than the inclination of the first sloping portion relative to reference planes.Expression " several years " refers to and is less than 10 degree, preferably between 0.5 degree and 5 degree.

This continuity of slight inclination part and larger inclination make it possible to provide the reflection of light on the gamut of diffusing globe, avoid the risk producing shadow region simultaneously, and utilization has the reflector compared with low height from its base to its top edge, realizes minimum overall dimensions.

Lighting device advantageously comprise for by the photoconduction from light source at least one collimater of reflector.

Therefore this collimater makes it possible to guide and collect luminous flux, and can not cause dazzle.In fact, by this way, light is all directed to reflector after being collimated, and subsequently after being reflected through diffusing globe.In such an embodiment, the optical path long enough between the light source carried by sidewall and diffusing globe is to prevent the appearance of hot spot, and in addition, described light source is not directly towards diffusing globe, and collimater makes it possible to improve brightness.

And because chamber is contained in the inner space limited by the support member of device completely, therefore this can not damage the overall dimensions of lighting device.

Lighting device advantageously comprises multiple collimater, and described collimater is arranged to the collimation lens towards each light source, and it is preferably made up of Merlon or polymethyl methacrylate.

And advantageously, light source is light emitting diode, it carries preferably by least one printed circuit board (PCB), and printed circuit board (PCB) is remained on the side of inner space by the sidewall against support member by fixation kit.

Under these conditions, can allow to use light emitting diode (LED), and light " spot " can not be produced, there is maximum intensity simultaneously.

In the schematic views in particular, lighting device comprises the assembly of the extra location for light.These extra positioning components can be such as the stripeds on diffusing globe.In alternative or supplementing structure, these positioning components can comprise the adjustable thin slice of the wall being formed locally reflector, thus each other with or the location of thin slice independent of each other make it possible to the orientation controlling luminous flux.

Support member is preferably made up of aluminium or reversed brass.In other cases, especially when low power illumination, support member also can be made up of plastic material or charging plastic material.

This better can disperse heat.In fact, in order to the proper operation of light emitting diode, lighting device is preferably closed, and more preferably seal, namely gas-tight seal.But when using this condition, in the inner space of the support member of enclosed light source, temperature raises rapidly.

In our case, the sidewall of support member of carrying light source has the outer surface being positioned at outside and the interior surface some or all light source being fixed to it respectively, light source inwardly spatial orientation along all or part of cloth of closed outline.

In such an embodiment, disperse heat via outer surface that is direct and external contact, and on the other hand, promote dispersing of heat by the material of support member itself.

Support member also can have fin at the outer surface of its sidewall, to increase the area of the outer surface contacted with extraneous air, thus improves heat exchange.

Light emitting diode is advantageously fixed to circuit board (its level place at the inner surface of the sidewall of support member and support member close contact).This contact makes directly between diode and the outer surface of support member, to carry out heat exchange.

More advantageously, reflector is made up of white, mirror finish or polishing Merlon or mirror finish aluminium, which increases the reflectivity of reflector.

In a concrete technical pattern, diffusing globe is made up of milky or transparent plastic material.

According to a favourable feature, except the light source that indirect lighting is provided carried by the sidewall of support member, illuminator also comprises the light source that also inwardly space (preferably, directly towards diffusing globe) is directed carried by rear wall, and these light sources are powered by electric mechanism.

In such an embodiment, the light source carried by rear wall provides direct illumination.In fact, although can be reflected in through the inner space at lighting device before diffusing globe from the light of the very fraction of these light sources, most light is not reflected through diffusing globe.

This light source of direct illumination is provided to make it possible to increase the power of lighting device, and do not need to increase the light source that carried by sidewall, increasing the light source that carried by sidewall will need such as to revise by increasing its diameter when round sealed profile the size of support member.This in fact disagrees with the problem realizing little overall dimensions.

And, when light source is light emitting diode, the light source of direct illumination that provides carried is provided and makes it possible to use the light emitting diode of smaller power to obtain satisfied illumination, thus reduce the risk of dazzle by rear wall.

And these the direct light sources be combined with indirect light source provide highest luminance, be at least equal to the standard level of the illumination of fluorescence or incandescent lighting device, and without the need to other lighting point is added into wherein to throw light on.

Under this lighting device can be used for the background of novel device for installing certainly, but the most important thing is when existing apparatus, particularly turning under news, wherein replace and must guarantee to obtain the lighting criteria level identical with the device be replaced.

And in such an embodiment, the overall dimensions of lighting device is similar to the size of the lighting device only providing indirect lighting.

The light source carried by the rear wall of support member is preferably oriented in towards the mouth in reflector, these mouthfuls are positioned in the part of the basic plane parallel with reference planes, and more preferably, in the rear between wall and the planar section by the nearest reflector of described rear wall, such as, in the level of the base of reflector.Which ensure that the enough intervals between these light source and diffusing globes that direct illumination is provided, to avoid the risk of dazzle.

Diffusing globe advantageously can have that to be oriented relative to lighting device transmission fully bending, and in other words, this bending recessed portion is directed on the side of inner space.This bending making it possible to accurately controls diffusing globe and the distance directly between light source, and without the need to revising the size of support member, the particularly size of sidewall.

Although diffusing globe has the shape relative to support member local transmission, and is localized, relatively little compared with the size of support member, the latter is not modified.Therefore, although the distance (it is thickness limited) between the rear wall of support member and diffusing globe increases partly, this does not damage the overall dimensions of device, and rear wall has unaltered height.And to a certain extent, this is bending improves the aesthetic property of device and does not make it demote at this.

More preferably, light emitting diode is fixed to one or more power liftgate with the level place close contact support member of the interior surface in its rear wall, and this close contact realizes the direct heat exchange between indirect light emission diode and the outer surface of support member.

In favourable structure, the sidewall providing the light source of direct illumination to compare support member carried by rear wall closer to reflector, or even carry than the sidewall by support member provide the light source of indirect lighting closer to reflector.When diffusing globe has bending feature, this advantageously.

Accompanying drawing explanation

Following only as an example with reference to the description that accompanying drawing provides by reading, Characteristics and advantages general of the present invention is apparent, wherein:

-Fig. 1 shows the lighting device according to the first embodiment;

-Fig. 2 shows the lighting device without diffusing globe according to the first embodiment;

-Fig. 3 is the exploded view of the lighting device according to the first embodiment;

-Fig. 4 and Fig. 5 is according to the front view of the first embodiment and the sectional view along the line A-A intercepting in Fig. 4;

-Fig. 6 a and Fig. 6 b is from two stereograms according to viewing above and below the reflector of the first embodiment;

-Fig. 7 a, Fig. 7 b and Fig. 7 c be according to the front view of the reflector of the first embodiment and relative to this front view from below with the view of left side viewing;

-Fig. 8 a, Fig. 8 b and Fig. 8 c are two stereograms and the front view of viewing above and below the support member of the lighting device according to the first embodiment;

-Fig. 9 a, Fig. 9 b and Fig. 9 c are two sectional views of stereogram and this device watched from the top of the support member according to the first embodiment lighting device (shown with electric mechanism);

-Figure 10 shows the lighting device according to the second embodiment;

-Figure 11 has used the lighting device without its diffusing globe according to the second embodiment;

-Figure 12 is the exploded view of the lighting device according to the second embodiment;

-Figure 13 and Figure 14 is according to the front view of the lighting device of the second embodiment and the sectional view along the line B-B intercepting in Figure 13;

-Figure 15 a and Figure 15 b is from two stereograms according to viewing above and below the reflector of the second embodiment;

-Figure 16 a, Figure 16 b and Figure 16 c be according to the front view of the reflector of the second embodiment and relative to this front view from below with the view of left side viewing;

-Figure 17 a, Figure 17 b and Figure 17 c are two stereograms and the front view of viewing above and below the support member of the lighting device according to the second embodiment;

-Figure 18 is the exploded view of the lighting device according to the 3rd embodiment;

-Figure 19 a and Figure 19 b is the front view without the lighting device of its diffusing globe according to the 3rd embodiment and stereogram;

-Figure 20 and Figure 21 is according to the front view of the lighting device of the 3rd embodiment and the sectional view along the line C-C intercepting in Figure 20;

-Figure 22 a and Figure 22 b is from two stereograms according to viewing above and below the reflector of the 3rd embodiment;

-Figure 23 is the front view of the reflector according to the 3rd embodiment;

-Figure 24 a, Figure 24 b and Figure 24 c are the stereograms watched from the top of the support member of the lighting device according to the 3rd embodiment, in the figure, diffusing globe is not had especially shown with electric mechanism, and the sectional view of this device, diffusing globe and reflector be visible in these two figure.

In order to clearly, in all of the figs, same or analogous element is represented by identical reference number.

Detailed description of the invention

Diagram shows multiple embodiment: Fig. 1 to Fig. 9 shows the first embodiment, and Figure 10 to Figure 17 shows the second embodiment and Figure 18 to Figure 24 shows the 3rd embodiment.

First embodiment is the first embodiment of the lighting device 1 being provided with support member 2, described support member 2 has four sidewalls 4 on the rear wall 3 of the basic plane be included in reference planes P and the border of restriction inner space 5, and this sidewall 4 limits the border of the closed contour 6 of opening 7 on the side relative with rear wall 3.

In this first embodiment, support member 2 has the cross section being in and being parallel in the plane of reference planes P, and this cross section is rectangle and substantially by four sidewall 4 limited boundaries.

Lighting device 1 comprises illuminator 8 further, and this illuminator comprises the electric mechanism 9 that multiple light sources 10 of carrying the sidewall 4 by support member 2 are powered.Light source 10 is directed and be only distributed in a part for closed contour 6 towards the inner space 5 of support member 2.Particularly, light source 10 is distributed on two in four sidewalls 4, and these two sidewalls 4 are the walls faced by two on the length direction of support member 2.

To the length direction of support member 2 be in (namely, longitudinally) upper and the distance that the sidewall 4 faced by two carrying light source 10 separates generally defines the width of support member 2, and the distance of being separated by two other sidewalls 4 laterally extending on the direction of width limits the length of support member 2.

More properly, here, light source 10 is light emitting diode (LED), carries all LED carried by printed circuit board (PCB) (PCB) 16 by same sidewall 4, on the sidewall 4 considering to keep this printed circuit board (PCB) to lean against on the side being positioned at inner space 5 by fixation kit 17.

These fixation kits 17 can exist only in and be assembled in another process by the parts of lighting device 1, particularly, in this assembling position, are leaned against on its sidewall 4 of carrying by pressing printed circuit board 16 by reflector 12.

Support member 2 such as can be made up of aluminium and/or reversed brass (zamak).These materials provide the better diversity to the heat generated by LED.

In order to user is giddy improves brightness avoiding making simultaneously, lighting device 1 is provided with collimater 15 so that the light from light source 10 is guided to reflector 12.

Here, collimater 15 is the collimation lenses arranged towards each in light source 10.

In this embodiment, collimater 15 is formed by the elongated bar-like portion be made up of Merlon or polymethyl methacrylate.Here, the part being in this elongated shape in a sheet is set to towards light source 10, makes all LED that each covering in them is carried by same longitudinal side wall 4.Fig. 5 shows solid and on the cross section of this collimater 15 of elongated shape diagram.Therefore, in this cross section, its part is such: at light through after it, collimater 15 guides these light to make them parallel to each other and is basically perpendicular to sidewall 4, and the carrying of this sidewall generates the light source 10 of described light.

By this way, collimater 15 when not having the risk of dazzle, can guide and being concentrated towards reflector 12 by luminous flux.

In addition, in this cross section, collimater is formed by the trapezium structure with large base and small footprint, inwardly space 5 is directed and small footprint is positioned on the side of LED with the back-to-back large base in side of the wall forming lens, trapezium structure also has opening in this section to the chamber in its small footprint, that is, perpendicular to the line chamber (rectilinear cavity) of the sidewall 4 be associated.

This chamber has the basic bottom for convex shape.In order to make collimater as much as possible close to sidewall 4, therefore this chamber is dimensioned and makes LED can enter this chamber in whole or in part.

Arrange that diffusing globe 11 is adapted to be light through this diffusing globe with the opening 7 of closed support member 2.

Reflector 12 is arranged in the inner space 5 by support member 2 and diffusing globe 11 limited boundaries, to be reflected towards diffusing globe 11 by the light from light source 10.

Reflector 12 has concave shape directed on the side towards sidewall 3 in the part limited by the part planar perpendicular to reference planes P.

Utilize support member 2, reflector 12 limits the inner border holding the chamber 13 of electric mechanism 9.In assembled configuration, reflector 12 covers set electric mechanism 9, makes its two longitudinal side wall 4 relative to support member 2 in the inner space 5 of support member 2 substantially placed in the middle.

In this first embodiment, concave shape (chamber namely in other words formed by reflector 12), towards rear wall 3, makes described reflector 12 use this rear wall 3 of support member 2 to limit the inner border holding the chamber 13 of electric mechanism 9.

More properly, the reflector 12 of overall concave shape comprises:

-lower bottom base 123, remains on support member 2 regularly, and preferably in its rear wall 3, in assembling position, described base 123 is positioned near two longitudinal side walls 4 of carrying light source 10; And

-top edge 122, in assembling position, this top edge is arranged near diffusing globe 11.

In the structure significantly illustrated in Figure 5, even if reflector 12 has so-called " stair (staircase) " part between its edge 122 and its base 121, reflector 12 still has overall concave shape, here curve by a dotted line shows skeleton diagram, and this overall concave shape has slope p in the level of its base 121 ₁₂₁, it is strictly greater than the slope p in the level at edge 122 thereon ₁₂₂, the slope P namely in the level of its base 121 ₁₂₁relative to the slope p on reference planes P ratio thereon edge 122 ₁₂₂more tilt.

By this way, and in this sectional view, the concave shape of reflector 12 has overall smooth domed shape.

" stair " part should be different from level and smooth curve, it can improve the inner volume available holding the chamber 13 of electric mechanism 9.Statement " volume available " means to be used to the volume by accommodated therein for described electric mechanism.In fact, although defined the space of certain volume by chamber 13, this volume not every can both be used.For constant cumulative volume, " stair " layout should can form larger volume available, and be convenient to place electric mechanism 9 while ensure that the improvement structure for its reflection function.

Particularly, obtain this " stair " shape by means of the reflector 12 in this same section perpendicular to the fact of reference planes P, this reflector 12 comprises:

-Part I 123, relative to reference planes P slight inclination, namely tilts with the several years, and this inclination angle is positive angle α ' relative to reference planes P and inclination angle is negative angle β ' relative to sidewall 4, and Part I 123 reflection comes from the light of sidewall 4; And

-Part II 124, relative to reference planes P with angle α anacline and relative to sidewall 4 with angle β reverse caster, Part II 124 reflection comes from the light (specifically see Fig. 5) of sidewall 4.

Particularly, Part I 123 is not parallel to reference planes P, this small inclination angle can make light to be reflected minimize, thus on the surface of reflector 12, do not produce any shadow region or less bright area, if α ' is less than or equal to 0, then on reflector 12, this dark areas is visible.Exist with the inclination alpha of Part I 123 ' reflect, it is relative to reference planes P:

-just (i.e. α ' >0) be strictly; And

-be strictly less than the inclination alpha (that is, α ' < α) of the second sloping portion 123;

Therefore the statement " slight inclination " that it is evident that about Part I 123 means them by very little angular slope and tilts to be less than the second sloping portion 124.Statement " several years " means to be less than 10 degree, preferably between 0.5 degree to 5 degree.

In our case, by means of the fact of sidewall 4 perpendicular to rear wall 3, the value of angle α with β and with the value of angle α ' and β ' and equally equal 90 degree.These two sloping portions 123 relative to reference planes P preferably have the angle α between 20 degree and 70 degree inclination angle and more preferably between 40 degree and 50 degree.In this embodiment, the absolute value of angle α and β all equals 45 degree.

, and make concave shape have smooth domed shape in addition:

The Part I 123 of-slight inclination is the closer to base 121 (namely also away from top edge 122), then they are shorter; And

-the second sloping portion 124 is the closer to base 121 (namely also away from top edge 122), then they are longer; And

Support member 2 is objects of rectangular shape, and reflector 12 has the shape of symmetrical plane, the plane of this symmetry by perpendicular to reference planes P planes bound and through its edge 122.

Therefore, part shown in Figure 5 is substantially identical on each point of the length of reflector 12, forms the border of the lateral sidewalls 4 of support member 2 except it.

In addition, electric mechanism 9 comprises at least one power supply circuits 91 of illuminator 8 and the circuit 92 for monitoring or control light source 10.

Do not consider this embodiment, power supply circuits 91 are accommodated in chamber 13.But, in some particular configuration, some operation constraint can be applied to outside monitoring or control circuit 92 being completely or partially placed on this chamber 13.

Monitoring or control circuit 92 can be formed by one or more circuit with the form of auxiliary unit, provide one or more specific monitoring or controlling functions with the purposes according to lighting device 1.

Such as, monitoring or control circuit 92 can comprise the circuit being attached to power supply circuits 91, if the existence of user detected, then this circuit is for starting illumination or applying voltage to light source 10.Additionally or alternatively, monitoring or control circuit 92 can comprise the circuit when surrounding environment brightness drops under predetermined threshold for making light source 10 throw light on equally.

They particularly illustrate power supply circuits 91 and observation circuit 92 (see Fig. 9 a, Fig. 9 b and Fig. 9 c).These power supply circuits are arranged in first area Z1, and this first area is near the side of the support member of the width forming the latter, and it is made up of traditional electronic unit of specific quantity, and the latter is fixed to the first printed circuit board (PCB) 910.

Here, monitoring or control circuit 92 are arranged in the second area Z2 of the inner space 5 of the support member 2 relative with first area Z1.Here, this monitoring or control circuit 92 comprise two printed circuit board (PCB)s be electrically connected each other, the high-frequency detector 921 being fixed in these printed circuit board (PCB)s and the RF transmitter/acceptor device 922 be arranged on another printed circuit board (PCB) 920.

RF transmitter/acceptor device 922 be placed as be in formed support member 2 width sidewall 4 near, namely do not carry any light source 10, thus be placed in assembling position, be arranged on the reflector 12 near diffusing globe 11 top edge near.

Towards this RF transmitter/acceptor device 922 and between the latter and diffusing globe 11 is the part of reflector 12.The infrared ray from RF transmitter/acceptor device 922 being positioned at this position must be able to be propagated, in this embodiment, and be positioned in the level of this RF transmitter/acceptor device 922, reflector 12 has transparent or lucky translucent portion, to guarantee the proper operation of device, alternatively, reflector 12 locally can have the opening at the level place at this RF transmitter/acceptor device 922, and namely it does not exist material between described RF transmitter/acceptor device 922 and diffusing globe.

In inner space 5, first area Z1 and second area Z2 is separated from each other by connector block.Here, this block is at the level place of upper wall, in the side of chamber 13 and have abutment in assembling position, and the level place reflector 12 at edge is supported by this abutment thereon, to be correctly placed in the inner space 5 of gripper shoe 2 by reflector 12.

If infrared transmitter/acceptor device 922 detects the existence of user, then this monitoring or control circuit 92 can start illumination or apply voltage to light source 10.

Configure due to it and when it is operative, guide close to the collimation lens 15 of the position of these LED the light sent by LED as far as possible by being positioned at.Control all light and they all guided on the sloping portion 123,124 of reflector 12.When at least one wall not from reflector 12 reflects, light is not had to leave the inner space 5 of support member 2.As far as possible vertically guide on diffusing globe 11 relative to reference planes P by light, this can reduce the risk of dazzle.Then, light is through diffusing globe 11, and it according to whitewash with efficiency requirements but milky or transparent, and does not have given shape again can not change the illumination intensity of this light.Therefore this can control dazzle and the illumination of the LED in the product of less thickness

Support member 2 is included in the fin 18 (such as, see Fig. 2) of the level of its sidewall 4 protruding outside from support member further, to increase the region of the outer surface contacted with extraneous air, thus improves the exchange of heat.

Second embodiment of the present invention has been shown in Figure 10 to Figure 17.

The essence of the first embodiment that this second embodiment is different from Fig. 1 to Fig. 9 is the overall shape of the various elements forming them.

Particularly, in this second embodiment, support member 2 has the single sidewall 4 on the rear wall 3 of the basic plane be in reference planes P and the border of restriction inner space 5, and this sidewall 4 limits the border of the circular closure profile 6 of opening 7 on the side relative with rear wall 3.Therefore support member 2 has cross section in the plane parallel with reference planes P, and it is circular and by the single horizontal limited boundary of sidewall 4 substantially.

As in the first embodiment, lighting device 1 comprises illuminator 8, and this illuminator comprises the electric mechanism 9 that the multiple light sources 10 for being carried by the sidewall 4 of support member 2 are powered.Light source 10 inwardly space 5 is directed and distribute along this circular closure profile 6.Particularly, light source 10 is LED.

All LED are carried by identical sidewall and are distributed on four printed circuit board (PCB)s (PCB) 16, and this printed circuit board (PCB) is kept against this sidewall 4 and remained on by fixation kit 17 on all closed contours 6 on the side of inner space 5.By this way, all LED are substantially towards the round-shaped center oriented of support member 2.LED is distributed in the group of three LED, and the group of every three LED is evenly distributed on the circumference of support member 2.Here, printed circuit board (PCB) 16 carries each three groups having three LED, and lighting device comprises 36 LED accurately.

To be similar to the form of those collimation lenses described in the first embodiment, collimater 15 is set towards LED.Particularly, each in these collimaters 15 is formed by the elongated solid bar of arc-shaped, to support the bending shape of sidewall 4 and one that all covers in the group of three LED.Here, there are 12 these collimaters 15.Collimater 15 is clamped to printed circuit board (PCB) 16.

By this way, when not having the risk of dazzle, collimater 15 can also guide luminous flux towards reflector 12 and assemble.

Arranging diffusing globe 11 with the opening 7 in closed support member 2 is adapted to be light through this diffusing globe.

Reflector 12 is positioned in the inner space 5 by support member 2 and diffusing globe 11 limited boundaries, to be reflected towards diffusing globe 11 by the light from light source 10.

In this second embodiment, reflector 12 is flankd by another reflector 12' or peripheral reflector, the latter preferably white, mirror finish or satin face processing Merlon or bright finished aluminium makes.When the existence of this peripheral reflector 12' combined with the reflector 12 in center also makes to be switched to closedown when lighting device because of the existence of the surround lighting of surface reflection, can by diffusing globe be user present evenly vision.

Here, this peripheral reflector 12' is kept by diffusing globe 11, and more accurately keeps by contacting with its external flange.

In fact, peripheral reflector 12' has substantially cup-shaped, after the inner space 5 of being intended to be accommodated in support member 2, namely near rear wall 3, and peripheral reflector 12' comprises the circular open of the center heart wherein, the inside that reflector 12 is placed on this circular open put and with the edge mate of this circular open.

In addition, reflector 12 has an overall concave shape, comprising:

-lower bottom base 121, by assembling lighting device 1, fixing maintenance, is pressed against rear wall 3 by peripheral reflector 12' particularly, and the latter is formed and keeps assembly 14; And

-top edge 122, is arranged in assembling position near diffusing globe 11.

Cross section that this reflector 12 defines in the cross section being basically perpendicular to reference planes P (see Figure 14, such as), there is in spill directed on the side of rear wall 3, and more accurately, the flattened dome shape at the level place at edge 122 thereon.

This spill and support member 2 limit chamber 13, and it is inner that electrical mechanisms 9 is accommodated in chamber 13.In assembled configuration, reflector 12 covers on power circuit 91 at least completely, and this power circuit is arranged to basic at the center of support member 2, and therein in space 5.

In this second embodiment, spill is directed on the side of rear wall 3, and make described reflector 12 limit chamber 13 together with the rear wall 3 of support member 2, electrical mechanisms 9 is received in chamber 13.

Be different from the first embodiment, the structure that in this second embodiment, reflector does not have " ladder ".In fact, reflector 12 here has spill, such as flat dome, wherein at the slope p at the level place of its base 121 ₁₂₁always strictly be greater than the slope p at the level place at edge 122 thereon ₁₂₂, that is more tilt relative to reference planes P

In the shape that support member 2 is circular, described support member 2 and reflector 12 have the shape comprising symmetrical axis Δ, the axis Δ of this symmetry defines by perpendicular to described reference planes P with through the rotating shaft at circular center, and the assembly of described support member 2 and reflector 12 make them assemble coaxially relative to axis of symmetry Δ.

In addition, this electrical mechanisms 9 comprises at least one for the power circuit 91 of illuminator 8 and the circuit 92 (not illustrating at these Figure 10 to Figure 17) for monitoring or control light source 10.

3rd embodiment of the present invention is shown in Figure 18 to Figure 24.

3rd embodiment is substantially from the different of the second embodiment shown in Figure 10 to Figure 17, also comprises direct light source.

In fact, except the light source 10 that the sidewall 4 of the support member 2 by providing indirect lighting carries, illuminator also comprises, carried by rear wall 3 and inwardly space 5 direct towards the light source 10' to diffusing globe 11, these light sources 10' provides electric power by the same electrical mechanism 9 providing the light source 10 of indirect lighting to power.

These other light sources 10' carried by rear wall 3 is similar to the light source 10 carried by sidewall 4.In fact, keep by the rear wall 3 of the support member 2 on the side of internal volume 5 is fixing and carries direct light source 10' with the printed circuit board (PCB) 16' of its close contact, these light sources 10' is light emitting diode.

These light sources 10' is positioned at the opening 120' in the face of peripheral reflector 12, and these openings 120' is disposed in the planar section being parallel to reference planes P.This part can have slight inclination, i.e. the inclination in several years.

At this, printed circuit board (PCB) 16' is directly positioned between the planar section of rear wall 3 and peripheral reflector 12', and each opening 120' is oval and towards three LED.In addition, three LED of each group are carried by identical printed circuit board (PCB) 16'.

Described printed circuit board (PCB) 16' is connected to each other by electronics ribbon cable, and the circle with symmetry axis Δ be substantially arranged between described reflector 12 and sidewall 4 is coaxial, and that is, direct illumination LED is disposed in around reflector 12.

In fact, it is desirable to these light sources 10' is set such that they are large as far as possible apart from the spacing of diffusing globe 11, namely here say, make them be positioned as close in center (this symmetry axis Δ is through this center).Therefore, basic annular region between reflector and sidewall 4 makes the favourable placement of LED, to present (rendering) user is visible to reach to be speckless, therefore, when described lighting device 1 is switched on, lighting device 1 keeps its uniform visual appearance on the whole surface of diffusing globe.

In order to more accurate, the corresponding region (see Figure 19 B) substantially limited by the following of annular region here:

-equal the internal diameter D of 136mm ₁correspond essentially to the external diameter of reflector 12; And

-equal the outer diameter D of 200mm ₂correspond essentially to the columnar internal diameter formed by sidewall 4, from the thickness wherein having removed collimation lens 15 twice guiding light from light source 10 towards reflector 12.

Oblong openings 120' distributes equably around reflector 12 in this annular region, and each being tangentially stretched to has between D ₁and D ₂(preferably than D ₂closer to D ₁, to guarantee the greater room from diffusing globe 11 to the domed shape of the diffusing globe provided) the circle of radius, then 36 LED of light source 10' coaxial generally within the circle with symmetry axis Δ on.It between them is the minimum interval of 10 millimeters that this LED has, the illumination of 45 × 36lm (lumen) that all these LED provide, i.e. 1620 lumens, or 1620cd.sr.

In addition, diffusing globe 11 has that to be oriented basic illumination apparatus 1 outstanding thus improve the curvature of the volume of inner space 5.Diffusing globe is also identical with the diffusing globe shown in the second embodiment of the present invention.This curvature makes it possible to significantly increase the distance between diffusion 11 and direct illumination light source 10' herein, and does not need the size of support member 2 to change, and thus avoids any risk of dazzle.

At this, reflecting plate 12 reflects a light that the source 10 carried by sidewall 4 is launched, and the source 10' carried by rear wall 3 carries out orientation, and guides directly their light towards diffusing globe 11.

Can see, particularly in Figure 24 a, Figure 24 b and Figure 24 c, electrical mechanisms 9 particularly including the circuit 91 (see Figure 24 b and Figure 24 c) for power supply-illumination system, and for monitoring or control the circuit 92 (see Figure 24 c) of light source 10,10'.

The power circuit 91 comprising the printed circuit board (PCB) 910 carrying various electronic components in chamber 13 completely reflector 12 times.

In addition, the level place at reflector 12 herein edge 122 thereon has the planar wall being parallel to reference planes P.Monitoring or control circuit 92 be arranged on this chamber 13 outside, on reflector 12.

In fact, in order to provide the measuring ability of monitoring or control circuit 92, reflector must not be formed and block the transmitting of signal and the screen of transmission.Therefore, monitoring or control circuit 92 are placed on outside chamber, but still by support member 2 and diffusing globe 11 restriceted envelopes.The curvature of diffusing globe 11 also achieves larger outer volume 5, and described monitoring or control circuit 92 are placed in the external volume between the upper limb 122 of reflector 12 and described diffusing globe 11.

Another kind of alternative is the planar wall that configuration is positioned at the level of the top edge 122 of reflector 12, makes its at least local openings, transparent or be at least translucent.In such structure, monitoring or control circuit 92 can be partially or even wholly placed in chamber 13.

In addition, the support member 2 of this lighting device 1 has cold sink 18 (for example, see Figure 17 b) at the level place of its sidewall 4, to increase the area of the outer surface contacted with ambient air, also improves heat exchange.These cold sinks 18 are given prominence to relative to the sidewall 4 outside support member 2, relative with the inner space 5 of support member.These cold sinks 18 covered by annular circle wall, and described annular wall has the refrigerating function being comparable to cold sink 18, and they are made up of identical material, is here aluminium or reversed brass.

In such configuration, on the one hand, heat is evacuated via outer surface that is direct and extraneous contact, and on the other hand, this heat is evacuated and supported by the material of support member itself.

Peripheral reflector 12' has the wall being intended to cover this peripheral reflector, and is partially formed the Decorative Cover of bordering on diffusing globe 11 in the periphery of lighting device 1.

Described light emitting diode is fixed on the printed circuit board (PCB) 16 with support member 2 close contact at the level place of the inner surface of its sidewall 4, also improves the diffusion of the heat between support member 2 and external environment condition.The evacuation of this heat be similar to the level place of the inner surface being wherein fixed on its rear wall 3 with the situation of the light emitting diode of the printed circuit board (PCB) 16' of support member 2 close contact.

Generally speaking, it is contemplated that other embodiments, particularly at their vpg connection.Particularly, closed contour 6, except the shape of rectangle and circle shape illustrated, can also be ellipse, square, triangle, hexagon, octagonal etc., but this is not restriction the present invention.The overall structure of lighting device also can with used form trait basic simlarity except the structure adopted.

In addition, it is contemplated that carrying light source 10 use heat conduction handle between this printed circuit board (PCB) 16 and support member 2.

Described lighting device 1 can also comprise extra light orientation assemblies, is such as positioned at the striped on diffusing globe or is partially formed the controllable fin of wall of reflector, make each other with or the orientation of wing plate independent of each other can control the orientation of luminous flux.

In addition, no matter the overall shape of lighting device also may provide direct illumination, and not only when having the lighting device of symmetry axis.Such as, when the first embodiment, such as, this light source 10' can be placed on the level place of the opening of the planar portions of the base 121 of reflector 12 in a similar manner.

Although being configured in of the what is called of this reflector 12 " ladder " only illustrates here in the first embodiment, but such structure also it is contemplated that in other embodiments, and the general shape (circle, ellipse, triangle, square, hexagon etc.) of no matter closed contour.

These lighting devices 1 also can be autonomous, and comprise battery, and particularly under reflector, the battery namely in this chamber 13, for Emergency Light.

The present invention describes by way of example.Be understandable that, those skilled in the art proposes the position of different modification of the present invention under being in the condition do not departed from the scope of the present invention.

Claims

1. a lighting device (1), comprises

-support member (2), there is the rear wall (3) of the basic plane be included in reference planes (P) and limit at least one sidewall (4) of inner space (5), the offside of described sidewall (4) wall in the rear limiting the closed contour (6) of opening (7);

-illuminator (8), comprise at least one electrical mechanisms (9) of powering for multiple light source (10), described multiple light source (10) is carried by the described sidewall (4) of described support member (2) and towards described inner space (5) and along all or part of distribution of described closed contour (6);

-diffusing globe (11), is arranged to the described opening (7) of closed described support member (2), and is adapted to be light through described diffusing globe;

-at least one reflector (12), be arranged in the described inner space (5) limited by described support member (2) and described diffusing globe (11), with reflection from the described light of described light source (10) towards described diffusing globe (11), described reflector (12) limits chamber (13) together with described support member (2), described electrical mechanisms (9) to be contained in described chamber (13) and to have cross section in the cutting plane being basically perpendicular to described reference planes (P), described reflector (12) has the overall concave shape towards described rear wall (3) side in described cross section, described reflector (12) is made to limit the inner described chamber (13) holding described electrical mechanisms (9) together with the described rear wall (3) of described support member (2), described reflector comprises:

Zero lower bottom base (121), by keeping, assembly (14) relatively described support member (2) is fixing to keep, and is arranged in basic assembling position near described sidewall (4); And

Zero top edge (122), is arranged in the described assembling position near described diffusing globe (11);

It is characterized in that, the slope (p that the described overall concave shape of described reflector (12) has in its base (121) level ₁₂₁) be strictly greater than the slope (p of edge (122) level thereon ₁₂₂).

2. lighting device according to claim 1 (1), it is characterized in that, the described chamber (13) holding described electrical mechanisms (9) in inside is substantially only limited by described reflector (12) and described support member (2), more preferably, limited by the described rear wall (3) of described reflector (12) and described support member (2).

3. the lighting device (1) according to any one in aforementioned claim, it is characterized in that, described electrical mechanisms (9) comprising: at least one power circuit (91) of described illuminator (8) with for monitoring or the circuit (92) controlling described light source (10).

4. lighting device according to claim 3 (1), is characterized in that, described power circuit (91) comprises at least one battery.

5. the lighting device (1) according to any one in aforementioned claim, it is characterized in that, described reflector (12) has cross section in the cutting plane being basically perpendicular to described reference planes, described cross section at least partly and comprise successively:

-Part I (123), is positively correlated with described reference planes (P) and negative tilts the several years about described sidewall (4), and the described light that described Part I (123) reflects is from described sidewall; And

-Part II (124), is positively correlated with described reference planes (P) and negative tilts about described sidewall (4), and the described light that described Part II (124) reflects is from described sidewall;

The gradient that described second sloping portion (124) has strictly is greater than the gradient of described first sloping portion (123).

6. the lighting device (1) according to any one in aforementioned claim, it is characterized in that, described lighting device comprises at least one collimater (16) for being guided from described light source (10) to described reflector (12) by described light.

7. lighting device according to claim 6 (1), it is characterized in that, described lighting device comprises multiple collimater (15), described collimater (15) is arranged to the collimation lens in the face of each described light source (10), preferably, described collimater is made up of Merlon or polymethyl methacrylate.

8. the lighting device (1) according to any one in aforementioned claim, it is characterized in that, described light source (10) is light emitting diode, preferably, described light emitting diode is carried by least one printed circuit board (PCB) (16), and described at least one printed circuit board (PCB) (16) is remained on the side of described inner space by the described sidewall of fixation kit (17) against described support member (2).

9. the lighting device (1) according to any one in aforementioned claim, is characterized in that, described lighting device comprises the assembly of the extra orientation for described light, is preferably the striped on described diffusing globe.

10. the lighting device (1) according to any one in aforementioned claim, is characterized in that, described support member (2) is made up of aluminium or reversed brass.

11. lighting devices (1) according to any one in aforementioned claim, is characterized in that, described reflector (12) processes Merlon by white, mirror finish or satin face or mirror finish aluminium is made.

12. lighting devices (1) according to any one in aforementioned claim, it is characterized in that, except the described light source (10) carried by the described sidewall of described support member (2), described illuminator (8) also comprise to be carried by described rear wall (3) and towards described inner space (5) directed, preferably just towards described diffusing globe (11) light source (10'), these light sources are powered by described electrical mechanisms (9).

13. lighting devices according to claim 12 (1), is characterized in that, the light source carried by described rear wall (3) (10') than described sidewall (4) closer to described reflector (12).