CN101371072B - Elongate luminaire with end regions which are tapered in cross section - Google Patents

Abstract

A luminaire (1), in particular damp-proof luminaire, having an elongate, trough-shaped housing (2), terminals arranged therein for at least one lamp (6), a transparent cover (4) covering the opening of the housing (2) and longitudinally extending fiberoptic ribs (23), which are preferably provided, in the cover (4). In order to broaden the possibilities in design terms of the cover (4), at least one cross-sectional dimension (B, T) of the cover (4) is reduced from its longitudinal center or a point in a longitudinal center region (L2) towards the respectively associated end region of the cover (4).

Description

The elongate luminaire that has the end regions of cross section convergent

Technical field

The present invention relates to a kind of luminaire.

Background technology

This luminaire adopts has two-part housing formation, and wherein, a part is for having the trough-shaped housing of tightening member, and this tightening member is used for fixing to for example wall or ceiling equivalent-load body; Another part is by the hood-shaped one-tenth of partially transparent at least, and this cover removably links to each other with trough-shaped housing by locking member.By in trough-shaped housing and the hood-shaped illuminator enclosure that becomes, can mechanical connection and be electrically connected a lamp, the light that sends during this lamp work is launched by translucent cover, to be used for room illumination.Under the situation of this known luminaire, the sidewall of housing and/or cover or the wall of cover are parallel to luminaire in the zone of its top ridge profile and so on longitudinal direction extends.

This luminaire for example is being described among EP 0 785 391 A1.Under the situation of this known luminaire, substantially be used for cover is fixed on trough-shaped housing for the locking member of C shape, these locking members are constituted as independent assembly, end regions of its C shape and stop branch are engaged in the bag shape depression on the trough-shaped housing, and the boundary between extending beyond trough-shaped housing and covering is connected, and the zone, the other end of its C shape is bonded on the back, edge of trough-shaped housing by tractive force, and trough-shaped housing and cover is pressed together with specific elasticity clamping force by this joint.

Here related this luminaire is the market product of typical large-scale production, in this case, on the one hand, strives the thickness of wall is decreased to required minimum of a value, and this is on the one hand in order to save material, on the other hand in order to reduce weight.Yet, particularly, under the situation of elongate luminaire, have to that notice is placed on that acquisition is particularly covered and the enough stability of basin shape housing on.

On the other hand, wish to realize on a kind of art, on the static state and favourable luminaire form on the function.

Summary of the invention

Therefore, under the situation of this luminaire shown in the background technology, the present invention is based on the purpose of the engineering feasibility of expanding this luminaire form design.Further, be devoted to make at least cover and preferably housing is stable.

This purpose realizes by a kind of luminaire, this luminaire has: elongated trough-shaped housing, be arranged in the described luminaire and be used for a plurality of connectors of at least one lamp, cover the translucent cover of described shell nozzle, preferably be present in a plurality of photoconduction ribs that extend longitudinally in the described cover, at least one sectional dimension of described cover from vertical centre of this cover or be positioned at this vertically in the middle of near position be decreased to two end regions of this cover continuously or to position, and protrusion laterally beyond described middle the longitudinal region that covers on this luminaire near this end regions.The favourable improvement of the present invention indicates in the dependent claims.

Under the situation according to luminaire of the present invention, described cover and preferred housing form dish, thereby their regional therebetween sectional dimensions are greater than the sectional dimension of its end regions.Thus, in each case, described cover and the preferred given sectional dimension of in its most of length range, extending of housing, the end regions convergent that this sectional dimension is different from contour shape and extremely is correlated with from middle longitudinal region.Thus, this cover and preferably housing have advantageous forms with respect to required space, and the heat that produces when considering on the one hand luminaire work on the function is especially taken the coating of luminaire on the other hand into account.In addition, cover and preferred housing are stabilized substantially.Therefore, can steady illumination device or cover according to structure of the present invention, perhaps by the enough stability reduction housings and/or the wall of cover, thereby can save material and/or reduce weight.

By structure according to the present invention, formed the form that is used for the simple of housing and/or cover and can produces economically.

When the size that is basically parallel to housing that branch boundary plane or plane of the opening extend and/or cover or width when middle zone is decreased to the end continuously, and/or basic with this minute boundary plane or plane of the opening meet at right angles the size of extending or the degree of depth when middle zone is decreased to the end continuously, all can obtain to be different from contour shape according to form improvement of the present invention.When the size that is basically parallel to the extension of branch boundary plane or plane of the opening reduces violently than size basic and that divide boundary plane to meet at right angles extension, form particularly advantageous form.

Here also known this relevant luminaire, its photoconduction rib with longitudinal extension is arranged on the inner surface of cover.This is fit to combine with structure according to the present invention as known structure especially well, and reason is the further stability that it causes luminaire or housing and cover.

Further advantageously, constitute the photoconduction rib like this, make the similar substantially lighting effect of acquisition on the length range of luminaire or cover.If the photoconduction rib for example stretches in the longitudinally extending plane of luminaire and skew angularly, and all photoconduction ribs all are arranged in longitudinally extending shared intersecting lens straight line and same, then can realize this point.

In addition, for example, can make the photoconduction rib have different section forms in order in the perimeter region of side or downside, to realize different light emissions.

The present invention further improves feature and has produced and be used for cover is installed in favourable locking device on the housing, also produce the simple structure that is suitable for this luminaire shown in the background technology capitally in addition, realized the form that is used for the simple of housing and cover and can produces economically in addition.

Description of drawings

Hereinafter, set forth preferred structure of the present invention and obtainable thus advantage in more detail with reference to exemplary embodiment.Accompanying drawing illustrates:

Fig. 1 is the side view according to luminaire of the present invention;

Fig. 2 is the view from the luminaire of beneath;

Fig. 3 is the perspective view from the cover of the luminaire of top observation;

Fig. 4 is the vertical cross-section diagram of the left-half of the luminaire represented with magnification ratio;

Fig. 5 is the view of the intermediate cross-section V-V of the cover among Fig. 2;

Fig. 6 is the view of the cross section VI-VI of the cover among Fig. 2;

Fig. 7 is the perspective cross-sectional view of cover.

The specific embodiment

Integral body is trough-shaped housing 2 by the critical piece of the luminaire of Reference numeral 1 expression among Fig. 1, the cover 4 that the locking devices 3 that are provided with by a plurality of distributions around removably link to each other with trough-shaped housing 2, and being arranged on lamp 6 in trough-shaped housing 2 and the cavity 5 of cover between 4, this lamp is connected and remains at least one unshowned machinery and the electrical connecting element.Cover 4 forms vaulted.Therefore, the wall 4a of this cover extends with arc or U-shaped cross section.

Under the situation of present embodiment, comprise a kind of moistureproof luminaire, it has satisfied special protection requirement in this respect, for example prevents that water spray from invading, and especially prevents to spray water in trough-shaped housing 2 is connected 7 zone with boundary between the cover 4.This protection can connect in 7 the zone by for example intermeshing in the pectination mode and being provided at boundary around thin slice 8a, 8b, 8c that peripheral direction is extended, and these thin slices have formed to provide and prevented the labyrinth packing (Fig. 4) of spraying water and invading.

Under the situation of present embodiment, the wall 2a of trough-shaped housing bifurcated in the zone of its free margins is two interlayer thin slice 8a, 8b, lateral separation between the two is greater than the interlayer thin slice 8c in the lateral separation that is bonded between interlayer thin slice 8a, the 8b, this interlayer thin slice 8c originates from the wall 4a of cover, laterally stands upright on boundary connection 7 places, and wherein Zhao wall 4a for example forms opposite flute profile or vaulted.

Except described labyrinth packing, boundary connects 7 and is preferably sealed by ring packing, and this ring packing has sealing ring D, and the sealing ring for example is arranged on the bottom that is present in the circumference slot 2b between thin slice interlayer 8a, the 8b, and compresses interlayer thin slice 8c.Sealing ring D adopts for example foam band flexible materials such as (foam ribbon).

In the free margins zone of housing wall 2a, the interlayer thin slice 8b in the housing wall 2a outside is a part that adds pace 9.

Housing wall 2a has the retaining element 12 that is used for fixing to this supporting body in its support-side 11 towards the wall equivalent-load body in for example ceiling or room.Under the situation of present embodiment, luminaire 1 has elongated and linearly extended form, and its length L 1 is several times of its width B.Trough-shaped housing 2 and cover 4 also correspondingly form like this.This luminaire comprises for example transparent material such as glass or plastics at least in its vaulted zone away from housing 2, the light of lamp 6 penetrates along main transmit direction S by this transparent material, but also is incident upon the side.Housing 2 is by particularly rigid plastics manufacturing of plastics.

The a plurality of locking devices 3 that exist are similar mutually, perhaps are provided with and are formed in both sides in the mode that is in mirror image.Therefore, a locking device 3 under every kind of situation can only be described hereinafter.

Under the situation of all embodiment, locking device 3 has the locking member 3a that the longitudinal cross-section shape is substantially C shape, the end regions of this locking member is represented by Reference numeral 3b, 3c, and its upper end region 3b is bonded on the back of trough-shaped housing 2, and be engaged to simultaneously in the recessed particularly storage 13 in the housing 2, this storage opens wide towards a side that connects 7 away from boundary.Storage 13 has two bag wall 13a, 13b of location toward each other, and face 15 extended during these two bag walls were roughly parallel to vertically, and to move or consider clamping action in order to prevent, it also is suitable for the sectional dimension of end regions 3b.Recessed or storage 13 is piecewise or extend along the longitudinal direction of luminaire 1 continuously only.

Locking member 3a is to be suitable for the form of the relevant outer shape of housing 2 substantially, extend to cover 4 from end regions 3b in the outside at the luminaire housing, wherein this locking member 3a extends beyond boundary connection 7, Xiang Guan end regions 3c is bonded on the back that adds pace 10 of cover 4 simultaneously, if and be fit to, be locked to and be formed on this and add among the recessed 10a in the pace 10.The joint of end regions 3c utilizes the 3d of joint branch at rear portion to realize, this rear portion engages the 3d of branch and extends to the inboard angularly or agley, thereby forms by the fastening end regions 3c of the fastener 14 of its rear portion bonding station.

Fastener 14 can be formed, make the rear portion joint 3d of branch be elastically biased toward and widen shoulder 10, its vertically middle face 15 that is connected 7 rectangular luminaires 1 with respect to horizontal expansion or with boundary is sloped inwardly, and this like this bias voltage inwardly rather than outwards draws this and widens shoulder 10.This realizes in the following manner,, the rear portion of end regions 3c is engaged a place, interval that is arranged on face 15 in vertically that is, this at interval a engage apart from the interval b of vertically middle face 15 greater than the rear portion of end regions 3b.By this, owing to flexibly be supported on the rear portion joint 3d of branch that adds on the pace 10 by elastic force under the bandy situation, so provide biasing force 16, its action direction comprises the acute angle W1 with vertically middle face 15.This biasing force can and/or add the outside bending of elasticity of pace 9 (wherein the shape of the shape of locking member 3a and this step 9 is consistent and outwardly-bent) based on end regions 3b and/or end regions 3c.

Locking member 3a forms by the level and smooth thin slice 3e that extends on its whole length, and its thickness is expressed as d.

The hooked end zone 3b that stretches to the locking member 3a of free end zone 3c is stopped in the storage 13 by stop device 17, with getting loose of preventing to pull out unintentionally and therefore cause.This stop can be based on multiple effective means, for example clamping action.

In each case, observe by the sight line that is transverse to longitudinal direction, cover 4 and preferably housing 2 have tangible dish-shaped cross sectional shape.It can be the shape of cigar shape.Adopt this shape, in each case, the sectional dimension of luminaire 1 or housing 2 and/or cover 4 sectional dimension and be decreased to each autocorrelative free end zone continuously from the position of vertical centre or middle longitudinal region.Therefore, particularly be appreciated that and be basically parallel to housing 2 and/or cover the width B of the plane of 4 opening 4b extending and to be decreased to the free end zone continuously from middle zone from Fig. 2,3,6 and 7.

In addition, with housing 2 and/or cover the degree of depth T that the plane of 4 opening 4b meets at right angles and extends, can be decreased to the free end zone of each autocorrelative cover 4 continuously from middle zone.Yet within the scope of the invention, also the central longitudinal size in area L 2 at cover 4 or housing 2 is consistent at least for this degree of depth T, as shown in Figure 1.By this structure, the longitudinally extending top line 4c of cover 4 essentially horizontally extends in longitudinal region L2 at least.But same in the zone of top line 4c, the sectional dimension of housing and/or cover or the degree of depth can be decreased to each autocorrelative end regions from a position of vertical centre or middle longitudinal region.

Therefore, housing 2 and/or cover 4 sidewall 2a, 4a and protrude laterally in whole length L 1 scope or beyond the middle longitudinal region of luminaire 1 in essence is decreased to each autocorrelative housing 2 continuously and/or covers 4 end regions thereby make to originate in vertical centre or originate in the width B of central longitudinal to a position of area L 2.

But wall 4a can be in the zone of top line 4c also can be in Zone Full or level and be arranged essentially parallel to support-side 11 extensions in longitudinal region L2 at least, thereby, except luminaire 1 or cover 4 the end-beveling, luminaire 1 or to cover 4 degree of depth T on whole length L 1 (at least in central longitudinal in area L 2) basic identical.

Under the situation according to luminaire of the present invention, support-side 11 constitutes like this, that is, the Support Position of its whole levels or a plurality of at least existence is positioned at same plane.

The degree of convergence of the housing 2 and/or the degree of convergence of covering 4 width B and the degree of depth T of cover 4 can be identical or different.Under the situation of present embodiment, the degree of convergence of width B is greater than the degree of convergence of degree of depth T.That is to say, width B towards free end reduce than degree of depth T towards free end reduce many.This can find out in Fig. 1 and Fig. 6 especially that wherein Fig. 6 illustrates the cross section VI-VI among Fig. 2.Particularly in Fig. 6 that the cross section between longitudinal region L2 and the L3 is shown, the width degree of convergence that the difference between the width B 1 that is reduced by intermediate width B and part causes is shown.

Can recognize also that from Fig. 1 and Fig. 6 the width B of having mentioned or the degree of convergence of B1 are greater than the degree of convergence of degree of depth T.This can be found out like this that promptly, vertically top line 4c extends (Fig. 1) with vertically middle (cross section V-V) cathetus in the VI-VI of cross section, perhaps according to a bit for stacking mutually of Fig. 6.

Cover 4 is formed with photo-conduction cell, and this photo-conduction cell will and be arranged on this lamp and the reflector R that remains on housing 2 sends or the light that reflects guides to the surrounding environment of cover 4 from lamp 6, that is, guide in the illuminated room.Under situation according to structure of the present invention, try hard to constitute like this cover 4, promptly pass through protuberance 21 and protuberance 22 in the side of top line 4c place existence, make the lighting effect basic identical in essence on whole length L 1 or L3.Wish that just the every bit place on the length of protuberance 21,22 obtains identical in essence lighting effect.

In order to obtain along horizontal direction that different light distributes or for the differently side direction and the underside area of illumination cover 4, the known wall 4a that adopts longitudinally extending light conduction rib or photoconduction rib 23 to constitute cover 4, wherein this rib guides at least one illuminated zone with light.

Under the situation of present embodiment, have the intermediate illumination zone W1 in the ridge zone, top that is arranged on cover 4, with with this zone W1 in abutting connection with being positioned at two field of illumination W2 of both sides, these two field of illumination W2 roughly extend to the edge of the wall 4a of cover 4, and are limited by an angular range in each case.

Under the situation of present embodiment, providing the cross section is leg-of-mutton other rib 23, and these ribs are provided with directly adjacent to each other, and it is horizontal surface that surperficial 23a, 23b are imported in its optically-coupled towards the plane of lamp 6 or opening 4b.The angle that surperficial 23a, 23b are imported in optically-coupled luminaire 1 or cover 4 vertical vertically in the both sides minute surface of face constitute symmetrically, and be set up the photoconduction and the light that obtain the hope to the illuminated room in field of illumination W1, W2 launched.The ranks of photoconduction rib 23 roughly extend to the free margins of the wall 4a that is arranged in plane E always, and this plane E roughly is arranged under mounting condition in the plane of opening 4b of housing 2.

On the contrary, rib 23 is along luminaire 1 or cover 4 longitudinal direction and so constitute, and makes the similar lighting effect of acquisition on the length of wall 4a or the also zone at end wall 4d.

The width e of the preferred rib 23 that is provided with directly adjacent to each other and preferred height h are tapered to the end of location toward each other of cover 4, and be preferably proportional with the corresponding degree of convergence of vaulted cover 4 existing corresponding sectional dimensions.Therefore, rib 23 is in angle ground offset orientation in the E1 of plane, wherein all ribs 23 all cut vertical line 24, and this vertical line 24 is positioned between the medial axis and edge plane E of lamp 6 or relevant electrical connection or mechanical connection instrument, preferably are arranged in the edge plane E.

Rib 23 can outwards extend in the end wall 4d of cover 4 always, and shown in Fig. 3 and 7, perhaps in each case, rib 23 can terminate in to the transition region of end wall 4d, cross section as shown in Figure 6.In Fig. 7, for the reason of simplifying, the left-half of figure does not illustrate the longitudinal edge of rib 23.

The outside that the position of the thin slice 3e of locking device 3 or locking member 3a is suitable for protuberance 21 or outwards protrudes, so that in each case, the thin slice 3e of this locking device 3 and locking member 3a visual jackshaft in Fig. 2 comprises acute angle W3 therebetween.

Claims (13)

1. a luminaire (1) has:

-elongated trough-shaped housing (2),

-be arranged in the described luminaire and be used for a plurality of connectors of at least one lamp (6),

-cover the translucent cover (4) of described housing (2) opening,

-and preferably be present in a plurality of photoconduction ribs (23) that extend longitudinally in the described cover (4),

It is characterized in that,

At least one sectional dimension of described cover (4) from vertical centre of this cover or be positioned at this vertically in the middle of near position be decreased to two end regions of this cover (4) continuously or to position, and described cover (4) protrusion laterally beyond middle the longitudinal region of this luminaire (1) near this end regions.

2. luminaire according to claim 1 is characterized in that,

The width (B) of described cover (4) from vertical centre of this cover or be positioned at this vertically in the middle of near position be decreased to two end regions of this cover (4) continuously or to position near this end regions.

3. luminaire according to claim 1 and 2 is characterized in that,

The degree of depth (T) of described cover (4) from vertical centre of this cover or be positioned at this vertically in the middle of near position be decreased to two end regions of this cover (4) continuously or to position near this end regions.

4. according to each described luminaire in the aforementioned claim, it is characterized in that,

The sectional dimension (B) that is parallel to plane of the opening (E) stretching, extension of described cover (4) subtracts much smaller than the sectional dimension (T) that is transverse to this plane of the opening (E) stretching, extension.

5. according to each described luminaire in the aforementioned claim, it is characterized in that,

The vaulted wall (4a) of described cover (4) transits to the end wall (4d) of the horizontal expansion of the end regions that is centered around this cover.

6. according to each described luminaire in the aforementioned claim, it is characterized in that,

Described housing (2) has width (B) at least in the zone of its opening (4b), this width from vertical centre or be positioned at this vertically in the middle of near position be decreased to two end regions of described housing (2) continuously or to position near this end regions.

7. luminaire according to claim 6 is characterized in that,

Described width reduces corresponding to the width (B) of described cover (4).

8. according to each described luminaire in the aforementioned claim, wherein said a plurality of photoconduction ribs (23) are set in the described cover (4) and extend longitudinally, it is characterized in that,

Described a plurality of photoconduction ribs (23) are positioned at a plurality of planes (E1) of longitudinally stretching of described cover (4), and these photoconduction ribs (23) are offset mutually angularly and intersect in common longitudinally extending straight vertical line (24).

9. luminaire according to claim 8 is characterized in that,

Described vertical line (24) roughly stretches in the branch boundary plane (E) between described housing (2) and described cover (4).

10. according to Claim 8 or 9 described luminaires, it is characterized in that,

The width (e) of the photoconduction rib (23) that extends along the circumference direction of described cover (4) or with and height (h) in correlation plane (E1), reduce towards two ends of described cover (4), corresponding to reducing of the cross section of this cover (4).

11. according to each described luminaire in the claim 5 to 10, it is characterized in that,

Described photoconduction rib (23) terminates in the end regions of vaulted wall (4a) of described cover (4) or extends to described end wall (4d) always.

12. each described luminaire in 11 is characterized in that according to Claim 8,

In each case, described photoconduction rib (23) has leg-of-mutton cross sectional shape.

13. luminaire according to claim 1 is characterized in that,

Described luminaire is moistureproof luminaire.

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