CN218763018U - Indirect lighting lamp - Google Patents

Abstract

The application provides an indirect lighting lamp, including casing, direct light source, indirect light source and indirect light source conduction piece set up in the casing. The shell comprises a base plate and a fixing piece, wherein the base plate is provided with an opening, and light emitted by the indirect light source passes through the shell from the opening after being reflected by the indirect light source conducting piece; the indirect light source is arranged on the chassis or the side wall of the fixed part. This application sets up indirect lighting source in the casing, leads light to lamps and lanterns rear surface through indirect light source conduction spare, when setting up indirect illumination, need not to increase the thickness of lamps and lanterns, and simple structure, and manufacturing cost is lower.

Description

Indirect lighting lamp

Technical Field

The application relates to the field of lighting fixtures, in particular to an indirect lighting lamp.

Background

With the diversification of market demands, the demand for the lighting lamp with indirect light emitting is increasing day by day, and the current way of realizing indirect lighting on the market is mainly that the back of the lamp is provided with a light source to make light irradiate towards the ceiling. As in japanese patent JP3234849U, an indirect illumination light source is mounted on the rear surface of the chassis, and indirect light is directly irradiated to the rear surface. However, this addition of the light source to the rear surface increases the height of the lamp body and increases the production cost.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the application provides an indirect lighting lamp, with indirect lighting source setting in the casing, guide light to lamps and lanterns rear surface through indirect light source conduction piece, when setting up indirect lighting, need not to increase the thickness of lamps and lanterns, and simple structure, manufacturing cost is lower.

The application provides an indirect lighting lamp, which comprises a shell, a direct light source, an indirect light source and an indirect light source conducting piece, wherein the direct light source, the indirect light source and the indirect light source conducting piece are arranged in the shell;

the shell comprises a base plate and a fixing piece, wherein the base plate is provided with an opening, and light emitted by the indirect light source passes through the shell from the opening after being reflected by the indirect light source conducting piece;

wherein, the indirect light source is arranged on the side wall of the shell or the lower surface of the chassis.

In the technical scheme, the indirect light source and the direct light source are both arranged in the shell, and the indirect light source conduction piece conducts light emitted by the indirect light source to the opening and emits the light to the rear surface of the lamp through the opening. In this way, the thickness of the lamp can be not increased while the indirect light source is arranged.

In addition, in the above technical solution, the number and shape of the openings are not limited, for example, the openings may be circular rings or multiple circular arcs. Preferably, the number of the openings corresponds to the number of the indirect light source conductors, and the openings are uniformly distributed on the part of the chassis near the edge.

In one possible implementation, when the indirect light source is disposed on the sidewall of the fixing member, the indirect light source conducting member is a light guiding bar, a first end surface of the light guiding bar is close to the indirect light source and an orthographic projection of the first end surface toward the direction of the indirect light source can cover the indirect light source, and a second end surface of the light guiding bar is close to the opening. In the above technical solution, the indirect light source conduction member is a light guide strip, and the indirect light source is emitted from the second end surface and exits from the lamp through the opening after being emitted into the light guide strip from the first end surface.

In a possible implementation manner, one side of the light guide strip close to the chassis is provided with a protrusion, the shape of the protrusion is matched with the opening, and the second end face is a protruded upper surface.

In one possible implementation, the light guide strip is light-tight except for the first end face and the second end face. In above-mentioned technical scheme, because the surface of leaded light strip except first terminal surface and second terminal surface is through light tight processing, can carry out the total reflection to the light, reduce light loss.

In a possible implementation manner, the surface of the light guide strip except the first end face and the second end face is provided with a total reflection layer, and the refractive index of the total reflection layer is lower than that of the light guide strip.

In one possible implementation, when the indirect light source is disposed on the chassis, the indirect light source conductor is a reflector disposed along an inner periphery of the chassis. One end of the reflector is in contact with the chassis, and the other end of the reflector, which is far away from the chassis, is in contact with the fixing piece. The chassis and at least part of the fixing piece and the reflector form a reflecting cavity, and the indirect light source and the opening are accommodated in the reflecting cavity. In the above technical solution, the light emitted from the indirect light source is reflected to the opening by the reflector.

In one possible implementation, a reflective paper is disposed between the direct light source and the indirect light source. In the above technical solution, the reflective paper is used to separate the direct light source region and the indirect light source region.

In one possible implementation, the indirect lighting fixture further includes a gasket, which may be made of foam (e.g., EVA foam board), and the gasket is capable of keeping the components of the fixture relatively stable during impact or shaking.

In one possible implementation, the fixing member is a face ring or a lamp cover.

Compared with the prior art, the beneficial results of this application lie in: when the indirect light source is arranged in the lamp, the height of the lamp is not increased, the structure is simple, and the production cost is low.

Drawings

The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and together with the description serve to explain the principles of the application. Other embodiments and many of the intended advantages of embodiments will be readily appreciated as they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale relative to each other. Like reference numerals designate corresponding similar parts.

Fig. 1 is an exploded view of an indirect lighting fixture according to a first embodiment;

FIG. 2 is an enlarged view of A in FIG. 1;

FIG. 3 is an enlarged view of B in FIG. 1;

fig. 4 is a schematic perspective view of an indirect lighting fixture according to a first embodiment;

FIG. 5 is a longitudinal cross-sectional view of the indirect lighting fixture of FIG. 4;

FIG. 6 is an enlarged view of C in FIG. 5;

fig. 7a is a longitudinal cross-sectional view of a light guide bar of an indirect lighting fixture according to an embodiment of the present invention;

FIG. 7b is a schematic diagram of the optical path of an indirect lighting fixture using the light guide strip of FIG. 7 a;

fig. 8a is a longitudinal cross-sectional view of a light guide bar of an indirect lighting fixture according to an embodiment of the present invention;

FIG. 8b is a schematic diagram of the optical path of an indirect lighting fixture using the light guide strip of FIG. 8 a;

fig. 9 is an exploded view of the indirect lighting fixture provided in the second embodiment;

fig. 10 is a longitudinal sectional view of an indirect lighting fixture provided in the second embodiment;

FIG. 11 is an enlarged view of D in FIG. 10;

fig. 12 is a longitudinal sectional view of the indirect lamp provided in the third embodiment;

FIG. 13 is an enlarged view of E in FIG. 12;

fig. 14 is an enlarged view of F in fig. 12 and a schematic diagram of an optical path of the indirect light source.

1-shell, 11-chassis, 111-open hole, 12-fixed part, 121-face ring, 122-lampshade, 2-direct light source, 3-indirect light source, 4-indirect light source conduction piece, 41-light guide strip, 411-first end face, 412-second end face, 413-protrusion, 42-reflector, 5-reflective paper, 6-gasket, 7-drive box and 8-direct light source conduction piece.

Detailed Description

In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments in which the application may be practiced. In this regard, directional terminology, such as "top," "bottom," "left," "right," "up," "down," etc., is used with reference to the orientation of the figures being described. In the following, for convenience of description, the side of the chassis remote from the light source is referred to as "upper" because components of the embodiments can be positioned in several different orientations, directional terminology is used for purposes of illustration or description and is in no way limiting. It is to be understood that other embodiments may be utilized and logical changes may be made without departing from the scope of the present application. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present application is defined by the appended claims.

Example one

As shown in fig. 1-2, the indirect lighting fixture of the present embodiment includes a driving box 7, a chassis 11, an indirect light source conducting member 4, an indirect light source 3, a direct light source 2, a reflective paper 5, a direct light source conducting member 8 and a fixing member 12, wherein the fixing member 12 is a surface ring 121, the chassis 11 is provided with three circular arc-shaped openings 111, the indirect light source conducting member 4 is a substantially circular light guiding strip 41, the light guiding strip 41 is provided with circular arc-shaped protrusions 413 corresponding to the openings 111, and the direct light source conducting member 8 is a circular light guiding plate, so that the direct light source can be more uniformly diffused.

Fig. 3 shows a schematic view of a local structure of the indirect light source 3 and the direct light source 2, as shown in the figure, the indirect light source 3 and the direct light source 2 are double rows of LED lamp beads facing to the middle axis of the lamp, wherein the lamp beads on the upper row are the indirect light source 3, and the lamp beads on the lower row are the direct light source 2.

As shown in fig. 4-6, the surface ring 121 is sleeved on the chassis 11 to form the housing 1, the light guide bar 41, the indirect light source 3, the direct light source 2, the reflective paper 5, and the direct light source conducting piece 8 are disposed in the housing 1, and the driving box 7 is disposed on the upper surface of the chassis 11. The light guide bar 41 includes a first end surface 411 for receiving incident light and a second end surface 412 for making light leave the light guide bar 41, the first end surface 411 is an outer side surface of the light guide bar 41, the second end surface 412 is an upper surface of a circular arc protrusion 413, and surfaces of the light guide bar 41 except the first end surface 411 and the second end surface 412 are all subjected to light-tight treatment, so that light emitted by the indirect light source 3 enters the light guide bar 41 from the first end surface 411 and can be transmitted to the second end surface 412, and then leaves the lamp from the opening 111.

The reflective paper 5 divides the light region of the upper row of indirect light sources 3 from the light region of the lower row of direct light sources 2. The lamp provided by the embodiment further comprises a gasket 6 arranged between the chassis 11 and the reflective paper 5, wherein the gasket 6 is made of EVA.

Fig. 7a and 8a are schematic longitudinal cross-sectional views of two light guide bars 41, and fig. 7b and 8b are schematic partial details of the light guide bar 41 in fig. 7a and 8a used for the indirect light source 3 and an optical path diagram of the indirect light source 3 in the first embodiment. As shown in fig. 7a to 8b, when the shape of the light guide bar 41 is changed, the propagation path of the light is changed. Although only two cross-sectional shapes of the light guide bars 41 are shown in the figure, in other possible implementations, the shape of the light guide bars 41 is not limited as long as light can be transmitted from the indirect light source 3 to the opening 111.

Example two

As shown in fig. 9 to 10, the indirect lighting fixture of the present embodiment includes a chassis 11, an indirect light source conductor 4, an indirect light source 3, a reflective paper 5, a direct light source 2, a driving case 7, and a fixing member 12. Wherein, mounting 12 is lamp shade 122, can spread direct light source 2, and direct light source 2 is the decurrent lamp plate of polylith, and indirect light source 3 is for the one row of ring shape LED lamp pearl of the centraxonial of lamps and lanterns, and reflective paper 5 is used for separating the light zone of direct light source 2 and indirect light source 3.

Three circular arc-shaped openings 111 are formed in the chassis 11, the indirect light source conduction member 4 is a circular light guide bar 41, three circular arc-shaped protrusions 413 corresponding to the openings 111 are formed in the light guide bar 41, and the protrusions 413 can enter the openings 111.

Fig. 11 shows the relative positions of the opening 111, the light guide bar 41 and the indirect light source 3 in the second embodiment, as shown in the figure, the first end face 411 is the outer side face of the light guide bar 41, the first end face 411 is opposite to the indirect light source 3, the second end face 412 is the upper surface of the circular arc protrusion 413, the second end face 412 is flush with the upper surface of the opening 111, and the surfaces of the light guide bar 41 except the first end face 411 and the second end face 412 are all subjected to light-tight treatment, so that the light emitted by the indirect light source 3 can be transmitted to the second end face 412 after entering the light guide bar 41 from the first end face 411.

EXAMPLE III

As shown in fig. 12 to 14, the indirect lighting fixture of the present embodiment includes a driving case 7, a bottom chassis 11, an indirect light source conducting member 4, an indirect light source 3, a direct light source 2, and a fixing member 12. The fixing part 12 is a lampshade 122, the driving box 7 is arranged in the middle of the chassis 11, the direct light source 2 is a plurality of lamp beads arranged around the driving box 7, and the plurality of lamp beads of the direct light source 2 can be arranged into different shapes including but not limited to a circular shape, a square shape and a triangular shape. The indirect light source 3 is also a plurality of beads arranged in a ring shape on the chassis 11, the radius of the ring formed by the arrangement of the indirect light source 3 is larger than the radius of the figure enclosed by the direct light source 2 or the radius of the external circle thereof, and the indirect light source conducting piece 4 is a reflector 42.

Specifically, fig. 13 shows a connection manner of the chassis 11, the lamp shade 122 and the light reflecting plate 42, as shown in the figure, a clamping interface for clamping the light reflecting plate 42 is provided on the chassis 11, a side wall of the chassis 11 is formed at the periphery of the chassis 11, and a plurality of clamping structures for clamping the lamp shade 122 are provided on the side wall of the chassis 11. The side walls of the lamp housing 122 enter the side walls of the chassis 11, together forming the housing 1.

The longitudinal section of the reflector 42 is substantially circular arc, wherein one end of the reflector 42 close to the chassis 11 bends towards the direction far away from the center of the circular arc and enters the clamping port on the chassis 11, and the other end of the reflector 42 bends towards the direction close to the center of the circular arc and contacts with the lamp shade 122. The side walls of the lamp housing 122, portions of the chassis 11 and the reflector 42 together form a reflective cavity.

Fig. 14 shows the position relationship between the indirect light source 3 and the reflective cavity and the propagation path of the light emitted by the indirect light source 3, as shown in the figure, the chassis 11 is provided with an opening 111, the opening 111 and the indirect light source 3 are both accommodated in the reflective cavity, the projection of the reflector 42 to the direction of the chassis 11 can cover the indirect light source 3, and when the indirect light source 3 emits light, the light is emitted onto the reflector 42 and leaves the lamp from the opening 111 through the reflection of the reflector 42.

It is apparent that various modifications and variations can be made to the embodiments of the present application by those skilled in the art without departing from the spirit and scope of the application. In this way, if these modifications and changes are within the scope of the claims of the present application and their equivalents, the present application is also intended to cover these modifications and changes. The word "comprising" does not exclude the presence of other elements or steps than those listed in a claim and the word "coupled" means that two elements are connected directly or through another element not listed in a claim. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage. Any reference signs in the claims shall not be construed as limiting the scope.

Claims (9)

1. An indirect lighting fixture, comprising a housing (1), a direct light source (2), an indirect light source (3), and an indirect light source conductor (4), wherein the direct light source (2), the indirect light source (3), and the indirect light source conductor (4) are disposed within the housing (1);

the shell (1) comprises a chassis (11) and a fixing piece (12), an opening (111) is formed in the chassis (11), and light emitted by the indirect light source (3) is reflected by the indirect light source conducting piece (4) and penetrates out of the shell (1) from the opening (111);

wherein the indirect light source (3) is arranged on the side wall of the shell (1) or the lower surface of the chassis (11).

2. The indirect lighting fixture of claim 1, wherein when the indirect light source (3) is disposed on the side wall of the fixed member (12), the indirect light source conduction member (4) is a light guide bar (41), the first end surface (411) of the light guide bar (41) is close to the indirect light source (3) and an orthographic projection of the first end surface (411) to the direction of the indirect light source (3) can cover the indirect light source (3), and the second end surface (412) of the light guide bar (41) is close to the opening hole (111).

3. The indirect lighting fixture of claim 2, wherein a surface of the light guide bar (41) close to the bottom plate (11) is provided with a protrusion (413), the protrusion (413) is shaped to match the opening (111), and the second end surface (412) is an upper surface of the protrusion (413).

4. An indirect lighting fixture as claimed in claim 2 or 3, wherein the surfaces of the light guide bar (41) other than the first end surface (411) and the second end surface (412) are treated to be opaque.

5. An indirect lighting fixture according to claim 3, wherein the surface of the light guiding bar (41) other than the first end face (411) and the second end face (412) is provided with a total reflection layer having a refractive index lower than the refractive index of the light guiding bar (41).

6. The indirect lighting fixture of claim 1, wherein when the indirect light source (3) is disposed on the chassis (11), the indirect light source conductor (4) is a reflector (42), the reflector (42) being disposed along an inner perimeter of the chassis (11);

one end of the reflector (42) is in contact with the chassis (11), and one end of the reflector (42), which is far away from the chassis (11), is in contact with the fixing piece (12);

the chassis (11) and at least part of the fixture (12) form a reflective cavity with the reflector (42), and the indirect light source (3) and the opening (111) are accommodated in the reflective cavity.

7. Indirect lighting fixture according to claim 1, characterized in that a reflective paper (5) is arranged between the direct light source (2) and the indirect light source (3).

8. An indirect lighting fixture according to claim 1, further comprising a gasket (6).

9. An indirect lighting fixture according to claim 1, wherein the fixture (12) is a face ring (121) or a lamp housing (122).

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