CN215336108U - Linear secondary light-emitting device - Google Patents

Abstract

The utility model discloses a linear secondary light-emitting device, which comprises a light-emitting node, a light guide column and a profile; the section bar is provided with a light guide cavity with two open ends, one side of the section bar is provided with a through light emitting opening, the light guide column is accommodated in the light guide cavity, the two ends of the section bar are respectively connected with a light emitting node, the light emitting node comprises a shell and a lamp bead, the shell comprises an accommodating part for accommodating the cavity and a connecting part with a hollow cavity, the accommodating cavity is communicated with the hollow cavity, one end of the hollow cavity, far away from the accommodating cavity, is an open end, the lamp bead is arranged in the accommodating cavity and faces the hollow cavity, the two ends of the light guide column are respectively accommodated in the hollow cavity, and the two ends of the section bar are respectively clamped on the connecting part. This application uses a small amount of lamp pearls and utilizes the leaded light post to change the light emitting mode, reduces the consumption, and the electric power resources are saved improves life, reduces the volume, practices thrift the space, and outward appearance handsome in appearance realizes that the colour temperature is adjustable and 256 kinds of colours are adjustable.

Description

Linear secondary light-emitting device

Technical Field

The utility model relates to the field of LED luminescence, in particular to a linear secondary light-emitting device.

Background

The lamp area class product that uses on the existing market forms the lamp area through attached many LED lamp pearls on flexible PCBA board, and LED lamp pearl is more in quantity, makes the light of sending comparatively dazzling on the one hand, and on the other hand consumption is great, causes electric power waste, and it is more to produce the heat to if one of them LED lamp pearl damages, then whole lamp area damages, makes the life in lamp area shorter.

If a device for changing the propagation angle of the light beam is changed, the light beam can be prevented from directly irradiating human eyes, and the positions of the lamp beads can be flexibly placed;

the color temperature of the conventional lamp belt products is only 3000K and 5000K, and the color temperature is monotonous.

Therefore, in combination with the above-mentioned technical problems, there is a need to provide a new technical solution.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems in the prior art, the utility model provides a linear secondary light-emitting device, which comprises the following specific technical scheme:

a linear secondary light-emitting device comprises a light-emitting node, a light guide column and a profile;

the section comprises an outer plate, a rear plate parallel to the outer plate and symmetrically arranged connecting plates, wherein the outer plate, the rear plate and the connecting plates enclose a light guide cavity with openings at two ends;

the light guide column is clamped in the light guide cavity and is provided with a reflecting surface and a light emitting surface which are parallel to each other, the light emitting surface is close to the light emitting opening, and the light emitting surface is parallel to the rear plate;

the light-emitting node comprises a shell and a lamp bead, the shell comprises a containing part with a containing cavity and a connecting part with a hollow cavity, the containing cavity is communicated with the hollow cavity, one end of the hollow cavity, far away from the containing cavity, is an opening end, the lamp bead is arranged in the containing cavity and faces the hollow cavity, two ends of the light guide column are respectively clamped in the hollow cavity, and the connecting part is clamped in the light guide cavity from two ends of the section bar;

the light-emitting nodes are respectively assembled at two ends of the light guide column and emit light from two ends of the light guide column through the lamp beads.

Further, the connecting part and the light guide cavity are in interference fit;

the width of the light emitting port is smaller than that of the light guide cavity, and the width of the light guide column is larger than that of the light emitting port; the section bar (4) is a metal section bar;

there are two of the light emitting nodes.

Further, the light-reflecting sheet is also included;

the light guide plate is arranged in the light guide cavity, the light reflection sheet is arranged between the back plate and the light guide column, the light reflection sheet is respectively abutted against the back plate and the light guide column, and the length of the light reflection sheet is not more than that of the light guide column.

Furthermore, the length of the reflective sheet is consistent with that of the light guide column, and the width of the reflective sheet is consistent with that of the light guide column;

furthermore, a clamping strip is arranged on the outer surface of the connecting part, the length direction of the clamping strip is consistent with the central axis of the connecting part, and the outer side of the clamping strip is flush with the outer side of the accommodating part;

the clamping strips are respectively buckled in the light emitting ports from two ends of the outer plate.

Further, the light guide column is a transparent square cylinder, the length of the light guide column is not more than that of the section bar, and the outer diameter of the light guide column is not more than the inner diameter of the light guide cavity;

the section bar is a square frame body; the luminous nodes at the two ends of the section bar are simultaneously opened and closed.

Further, the reflecting surface is provided with a dot matrix 34;

the dot matrix is a variable-pitch dot matrix, and dots in the dot matrix change from density to density, depth to depth and area from small to large from two ends to the middle of the light guide column.

Furthermore, a plurality of ribs are arranged on the surface of the connecting part in parallel, the length direction of each rib is consistent with the central axis of the connecting part, and the thickness of each rib is smaller than that of each clamping strip.

Further, luminous node still includes PCBA board and connector, follows hold the chamber orientation well cavity direction, connector, PCBA board and lamp pearl hold in proper order in hold the intracavity, the lamp pearl is connected in PCBA board one side, the connector connect in PCBA board opposite side.

Further, a communication port is formed in the side wall of the accommodating portion, and the communication port is located on one side far away from the clamping strip;

the connector has a wiring port facing the communication port.

The linear secondary light-emitting device has the following beneficial effects:

(1) according to the linear secondary light-emitting device, two ends are adopted for emitting light, a low-power LED lamp is made to have a high-power effect, energy consumption is reduced, heating is reduced, the light-emitting effect is better through the cooperation of the light-emitting nodes, the light guide columns and the reflecting paper, and the illumination requirement is met;

(2) the linear secondary light-emitting device uses a small number of lamp beads, and changes the light-emitting mode by using the light guide column, thereby achieving the effect of soft light emission;

(3) the linear secondary light-emitting device of the utility model has the advantages of reducing power consumption, saving electric power resources and reducing heat emission;

(4) the linear secondary light-emitting device has the advantages that the service life is prolonged, the size of the device can be greatly reduced, the space is saved, and the appearance is attractive;

(5) the linear secondary light-emitting device realizes color temperature adjustability and 256 color adjustability by combining a color light LED with a light-guiding light-emitting mode.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is an exploded view of a linear secondary light emitting device according to the present application;

fig. 2 is a schematic perspective view of a linear secondary light emitting device according to the present application;

FIG. 3 is a schematic view of the structure of the H-section of FIG. 2;

FIG. 4 is a schematic cross-sectional view of a linear secondary light emitting device according to the present application;

FIG. 5 is a schematic cross-sectional view of a profile according to the present application;

fig. 6 is an exploded view of a light emitting node according to the present application;

fig. 7 is a schematic perspective view of a light-emitting node according to the present application;

FIG. 8 is a perspective view of the housing of the present application;

FIG. 9 is a perspective view of the housing of the present application;

FIG. 10 is a schematic view of the A-direction structure of the housing of FIG. 4;

FIG. 11 is a schematic view of the housing of FIG. 4 in a B-orientation configuration;

FIG. 12 is a schematic plan view of the housing of the present application;

fig. 13 is a schematic perspective view of a light guide pillar according to the present application.

FIG. 14 is a schematic view of the A-direction structure of FIG. 13;

FIG. 15 is a schematic view of a partial plan view of one embodiment of a light guide bar according to the present application;

FIG. 16 is a schematic view of a partial plan view of a light guide bar according to yet another embodiment of the present application.

The LED light source comprises a light emitting node 1, a light guide column 3, a section bar 4, a shell 10, a lamp bead 21, a PCBA board 22, a connector 23, a cover plate 24, a containing part 11, a connecting part 12, a bottom plate 110, a containing cavity 111, a clamping hole 112, a communication port 113, a long column 114, a groove 115, a light transmitting hole 116, a hollow cavity 120, a limiting column 121, a buffer port 122, a clamping strip 123, a rib 125, a claw 241, a light source surface 31, a light reflecting surface 32, a light emitting surface 33, a dot matrix 34, a light guide cavity 41 and a light emitting port 42.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", "large", "small", "one end", "the other end", "both ends", "one side", "the other side", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "fixed," "connected," "disposed," "pressed," "sleeved," "fixed," and the like are to be construed broadly, e.g., as fixed connections, as well as detachably connected, or integral; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Examples

Referring to fig. 1-5, fig. 1 is an exploded structural schematic view of a linear secondary light emitting device according to the present application, fig. 2 is a three-dimensional structural schematic view of the linear secondary light emitting device according to the present application, fig. 3 is a structural schematic view of a portion H of fig. 2, fig. 4 is a sectional structural schematic view of the linear secondary light emitting device according to the present application, and fig. 5 is a sectional structural schematic view of a profile according to the present application. As shown in fig. 1-5, a linear secondary light emitting device includes a light emitting node 1, a light guiding pillar 3 and a profile 4;

the section comprises an outer plate, a rear plate parallel to the outer plate and connecting plates symmetrically arranged, the outer plate, the rear plate and the connecting plates are enclosed to form a light guide cavity 41 with openings at two ends, the outer plate is provided with a penetrating light emitting opening 42 along the length direction of the section, and the length of the light emitting opening 42 is consistent with that of the light guide cavity 41;

preferably, the width of the light-emitting opening 42 is smaller than the width of the light-guiding cavity 41, the light-emitting nodes 1 at two ends of the profile 4 are simultaneously opened and closed, in an example, the profile 4 is a square frame, the profile 4 is an aluminum profile, the light-emitting nodes 1 at two ends of the profile 4 simultaneously emit light with the same color, and the light-emitting nodes 1 at two ends of the profile 4 are electrically connected in parallel.

The light guide column 3 is clamped in the light guide cavity 41, the light guide column 3 is provided with a reflecting surface 32 and a light emitting surface 33 which are parallel to each other, the light emitting surface 33 is close to the light emitting opening 42, and the light emitting surface 33 is parallel to the outer plate and the rear plate;

the two ends of the section bar 4 are respectively connected with a light emitting node 1, the light emitting node 1 comprises a shell 10 and a lamp bead 21, the shell 10 comprises a containing part 11 with a containing cavity 111 and a connecting part 12 with a hollow cavity 120, the containing cavity 111 is communicated with the hollow cavity 120, one end of the hollow cavity 120, which is far away from the containing cavity 111, is an open end, the lamp bead 21 is arranged in the containing cavity 111 and faces the hollow cavity 120, two ends of the light guide column 3 are respectively clamped in the hollow cavity 120, the connecting part 12 is clamped in the light guide cavity 41 from two ends of the section bar 4, and the connecting part 12 and the light guide cavity 41 are in interference fit;

preferably, there are two light emitting nodes, the width of the light guide column 3 is greater than the width of the light emitting opening 42, the light guide column 3 is a transparent square cylinder, the length of the light guide column 3 is not greater than the length of the section bar 4, the size of the light guide column 3 is consistent with the size of the light guide cavity 41, and the reflection surface 32 of the light guide column 3 is provided with a dot matrix 34.

The light emitting nodes 1 are respectively assembled at two ends of the light guide column 3, and the device emits light from two ends of the light guide column 3. It adopts both ends luminous, makes the effect of high power with low-power LED lamp, reduces the energy consumption, and the reduction of generating heat for luminous effect is better through the cooperation of luminous node, leaded light post and reflection paper, reaches the illuminance requirement.

In another embodiment, a retroreflective sheeting is also included;

the reflective sheet is accommodated in the light guide cavity 41, the reflective sheet is arranged between the rear plate and the light guide columns 3, the reflective sheet is respectively abutted to the rear plate and the light guide columns 3, and the length of the reflective sheet is not greater than that of the light guide columns 3.

Preferably, the length of the reflective sheet is consistent with that of the light guide column 3, and the width of the reflective sheet is consistent with that of the light guide column 3. In an example, the reflective sheet is white reflective paper.

Set up reflection of light thin slice, can make more light shine into the atmosphere from light-emitting opening after reflection of light thin slice reflection, can improve the light-emitting rate of this device, on the other hand, in the example, for the assembly of being convenient for, the external diameter of leaded light post 3 slightly is less than the internal diameter of light guide cavity 41 increases reflection of light thin slice, and the leaded light post 3 of being convenient for is fixed in the light guide cavity 41, reduce or do not produce and rock.

In the example, the light reflecting sheet is white reflecting paper, and the reflecting paper can improve the light extraction rate and overcome the light intensity; the color of the dot matrix on the light pipe may also be masked so that the dot matrix is not visually perceptible by the device.

Referring to fig. 6 to 12, fig. 6 is an exploded structural schematic view of a light emitting node described in the present application, fig. 7 is a perspective structural schematic view of the light emitting node described in the present application, fig. 8 is a perspective structural schematic view of a housing described in the present application, fig. 9 is a perspective structural schematic view of the housing described in the present application, fig. 10 is an a-direction structural schematic view of the housing of fig. 4, fig. 11 is a B-direction structural schematic view of the housing of fig. 4, and fig. 12 is a plan structural schematic view of the housing described in the present application. As shown in fig. 6-12, the light emitting node 1 comprises a housing 10, a lamp bead 21, a PCBA board 22, a connector 23 and a cover plate 24;

the housing 10 includes a containing portion 11 and a connecting portion 12, the containing portion 11 includes a bottom plate 110 and side plates disposed around the bottom plate 110, the bottom plate 110 and the side plates enclose a containing cavity 111 with an opening at one end, the bottom plate 110 is provided with a light transmitting hole 116, the side plates are provided with a plurality of through card holes 112, the connecting portion 12 is fixedly connected to the bottom plate 110, the connecting portion 12 has a hollow cavity 120 with openings at two ends, and the containing cavity 111 is communicated with the hollow cavity 120 through the light transmitting hole 116.

The connecting part is provided with a front plate, a back plate and a middle plate which are symmetrically arranged, and the front plate, the back plate and the middle plate enclose a hollow cavity 120 with openings at two ends;

in an example, the accommodating portion 11 and the connecting portion 12 are both square frames, the accommodating portion 11 and the connecting portion 12 are integrally connected, the outer diameter of the accommodating portion 11 is larger than the outer diameter of the connecting portion 12, that is, in the cross-sectional direction, the cross-sectional length of the accommodating portion 11 is larger than the cross-sectional length of the connecting portion 12, and the cross-sectional width of the accommodating portion 11 is larger than the cross-sectional width of the connecting portion 12.

Preferably, a plurality of limiting columns 121 are annularly arranged at one end of the inner wall of the connecting part 12 close to the accommodating part 11, and the length direction of the limiting columns 121 is consistent with the central axis of the connecting part 11; in an example, one end of the limiting column 121 close to the accommodating part 11 is fixedly connected with a bottom plate of the accommodating part 11, and the length of the limiting column 121 is not less than the height of the lamp bead 21. The limiting column is arranged to prevent the light guide column from pressing the lamp bead 21 when being inserted into the hollow cavity.

In an example, a through groove 115 is arranged on the inner wall of the side plate close to the back plate, the length direction of the groove 115 is consistent with the central axis direction of the accommodating part 11, and the length of the groove 115 is consistent with that of the side plate; the inner wall of the side plate is provided with a plurality of long columns 114, the long columns 114 are connected with the bottom plate 110, the length direction of the long columns 114 is perpendicular to the bottom plate 110, and the outer diameter of the long columns 114 gradually decreases towards the direction far away from the bottom plate 110.

A circuit connector is arranged at the edge of the PCBA 22, and a gap is reserved between the circuit connector and the inner wall of the accommodating part 11 due to the arrangement of the groove 115, so that the circuit connector is prevented from being communicated with the shell 10 to cause a short circuit of the PCBA 22; the inner wall of the accommodating part 11 is provided with long columns 114, so that the PCBA 22 is separated when the PCBA 22 is placed in the accommodating cavity, the PCBA 22 is prevented from shaking, the outer diameter of one end, away from the bottom plate, of each long column 114 is gradually reduced, and the PCBA 22 is convenient to mount; PCBA board 22 with PCBA board 22 one-to-one position also can set up the breach, is convenient for rectangular column 114 card is solid PCBA board 22 avoids PCBA board 22 rocks.

In an example, a communication port 113 is formed on one side of the side plate away from the groove 115, the communication port 113 is formed, the connector 23 is placed in the accommodating cavity, the wire connection port on the connector 23 faces the communication port 113, and the inner diameter of the communication port 113 is not smaller than the inner diameter of the wire connection port;

the front plate is provided with a buffer opening 122, and one end of the buffer opening 122 far away from the accommodating part 11. In an example, the communication port 113 and the buffer port 122 are located on the same side of the housing 10. The buffer opening 113 is formed to facilitate the light guide column 3 to be assembled into the hollow cavity 120, and also to facilitate the profile 4 to be clamped on the connecting portion 12.

In an example, a clamping strip 123 is arranged on the outer surface of the back plate, the length direction of the clamping strip 123 is consistent with the central axis of the connecting portion 12, the length of the clamping strip 123 is consistent with the length of the connecting portion 12, the outer side of the clamping strip 123 is flush with the outer side of the side plate, the clamping strip 123 and the buffer port 122 are arranged on two sides of the connecting portion 12 relatively, and the clamping strip 123 is respectively clamped in the light-emitting port 42 from two ends of the outer plate. The clamping strip 123 is provided to help the connecting portion 12 to be firmly clamped in the light guide cavity, and also to support the light emitting opening 42, so that the profile is not easy to collapse and deform.

Preferably, a plurality of ribs 125 are arranged on the surface of the connecting part 12 in parallel, the length direction of the ribs 125 is consistent with the central axis of the connecting part 12, and the thickness of the ribs 125 is smaller than that of the clamping strips 123; the ribs 125 are provided to more firmly fasten the connecting portion 12 in the light guide cavity 41.

In an example, the ribs 125 include a plane rib and a slant rib, the slant rib is far away from the accommodating portion 11, and the slant rib extends from one end of the plane rib toward the center direction of the connecting portion 12;

in an example, ribs 125 are symmetrically arranged on two sides of the clamping strip 123; ribs 125 are symmetrically arranged at two ends of the front plate; the middle plate is provided with ribs 125 near one end of the back plate.

The lamp bead 21, the PCBA board 22 and the connector 23 are all arranged in the accommodating cavity 111, the lamp bead 21 is connected to one side of the PCBA board 22, the lamp bead 21 is arranged in the light transmitting hole 116 and faces the hollow cavity 120, the PCBA board 22 is in contact with the bottom board 110, and the connector 23 is connected to the other side of the PCBA board 22;

in an example, the lamp bead 21 is electrically connected to the PCBA board 22, the connector 23 is electrically connected to the PCBA board 22, and light emitted from the lamp bead 21 passes through the hollow cavity 120 and irradiates to the atmosphere;

the cover plate 24 covers the accommodating portion 11 from above the connector 23. In an example, the cover plate 24 is provided with claws 241 on one side thereof corresponding to the fastening holes 112, and the claws 241 are fastened in the fastening holes 112.

A convex block is arranged on one side of the cover plate 24, the convex block and the clamping claw 241 are positioned on the same side of the cover plate 24, and the convex block corresponds to the connector 23. The projection is provided to play a role of the spacer connector 23, and the connector 23 is protected from shaking in the accommodating cavity 111.

Preferably, the lamp beads 2 are LED lamp beads, the number of the lamp beads 2 is 1 or more, the LED lamp beads can emit white light or RGB colored light, the plurality of lamp beads 2 can emit light of the same color at the same time, and can also emit light of different colors at the same time, so as to generate a color mixing effect; the shell 10 is a heat-conducting metal shell, the connector 23 is provided with a wiring port, and the wiring port is close to one side of the PCBA board 22. In an example, the housing 10 is a zinc alloy housing, the cover plate 24 is a plastic cover plate, and the number of the lamp beads 2 is 2.

In yet another embodiment, a thermal adhesive layer is further included; one side of the heat-conducting adhesive layer is glued to the bottom plate of the accommodating part 11, and the other side of the heat-conducting adhesive layer is glued to one side of the PCBA board 22. Set up the heat-conducting glue layer, PCBA board 22 through the heat-conducting glue layer glue in on the bottom plate, the heat that lamp pearl 21 and PCBA board 22 course of operation produced passes through the heat-conducting glue layer heat-conduction extremely shell 10 with on the apron 24, and then release to the atmospheric environment in.

Referring to fig. 13-16, fig. 13 is a schematic perspective view of a light guide pillar according to the present application, fig. 14 is a schematic view of a structure along the direction a of fig. 13, fig. 15 is a schematic view of a partial planar structure of an embodiment of the light guide pillar according to the present application, and fig. 16 is a schematic view of a partial planar structure of another embodiment of the light guide pillar according to the present application. As shown in fig. 13-16, the light guiding pillar 3 includes a light source surface 31, a reflecting surface 32 and a light emitting surface 33;

the light source surfaces 31 are respectively located at two ends of the light guide column 3, the reflection surface and the light emitting surface are oppositely arranged on the side surface of the light guide column 3, in the example, the light guide column 3 is a transparent square cylinder, and the light emitting surface and the light source surface are both smooth surfaces;

the reflection surface is arranged on the lattice 34, the reflection surface 32 is arranged on the lattice 34, the lattice 34 is a variable-pitch lattice, and points in the lattice are changed from density to density from two ends of the light guide pillar 3 to the middle, and are changed from depth to depth and from small to large in area.

The dot matrix 34 at the center of the light guide column has more number and larger outer diameter, so that light beams incident from two ends are more uniformly irradiated into the atmosphere, and the purpose of uniform light guide is achieved.

Preferably, the light guide column 3 is an acrylic light guide column;

this application light guiding device's leaded light principle:

light beams respectively enter the light guide column 3 from the light source faces 31 at the two ends of the light guide column 3, part of the light beams irradiate the dot matrix 34, part of the light beams are reflected, diffused or scattered on the dot matrix 34, and part of the light beams irradiate the light exit face 33 of the light guide column 3 and irradiate the light exit face 33 into the atmosphere.

In one embodiment, the dot matrix 34 is a white ink dot matrix, the ink dot matrix is convex bumps, the ink dot matrix is fixed on the reflective surface 32 of the light guide pillar 3, and the ink dot matrix is printed on the reflective surface 32 of the light guide pillar 3 by screen printing or digital jet printing.

The dots in the ink dot matrix can be arranged in different shapes, including circular, square, diamond, linear or other ink dot matrixes, and the like, the length direction of the dots in the linear ink dot matrix is perpendicular to the length direction of the light guide column 3, and the length of the dots in the linear ink dot matrix is smaller than the width of the reflecting surface 32.

In another embodiment, the lattice 34 is integrally connected to the light guide column 3, the lattice 34 is obtained by laser dotting on the reflection surface 32, the lattice 34 integrally connected to the light guide column 3 is obtained by laser dotting on the reflection surface 32, and the dots in the lattice 34 are circular. The dot matrix 34 obtained by laser dotting is not added with extra materials, is more environment-friendly, simple to manufacture, low in cost and good in durability.

This application gets the leaded light device of dot matrix 34 through laser dotting and carries out the illuminance test to its luminous homogeneity under different color lights, the leaded light device length of carrying out the illuminance test is 450mm, select leaded light device along three positions such as length direction's one end, the other end and centre and compare, because the material of light guide post, the density of dot matrix and factor such as error of dotting, under the circumstances that the illuminance required, the illuminance error at both ends and centre is within 20%, reached even luminous effect.

The linear secondary light-emitting device has the beneficial effects that:

(1) according to the linear secondary light-emitting device, two ends are adopted for emitting light, a low-power LED lamp is made to have a high-power effect, energy consumption is reduced, heating is reduced, the light-emitting effect is better through the cooperation of the light-emitting nodes, the light guide columns and the reflecting paper, and the illumination requirement is met;

(2) the linear secondary light-emitting device disclosed by the utility model uses two lamp beads, and changes the light-emitting mode by using the light guide column, so that the soft light-emitting effect is achieved;

(3) the linear secondary light-emitting device uses a small number of lamp beads, so that the power consumption is reduced, the power resource is saved, and the heat emission can be reduced;

(4) the linear secondary light-emitting device uses a small number of lamp beads, so that the service life is prolonged, the volume of the device can be greatly reduced, the space is saved, and the appearance is attractive;

(5) the linear secondary light-emitting device realizes color temperature adjustability and 256 color adjustability by combining a color light LED with a light-guiding light-emitting mode.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

While embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications and variations may be made therein by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. A linear secondary light-emitting device is characterized by comprising a light-emitting node (1), a light guide column (3) and a profile (4);

the section comprises an outer plate, a rear plate parallel to the outer plate and connecting plates symmetrically arranged, wherein the outer plate, the rear plate and the connecting plates are enclosed to form a light guide cavity (41) with openings at two ends, the outer plate is provided with a light emitting opening (42) penetrating through along the length direction of the section, and the length of the light emitting opening (42) is consistent with that of the light guide cavity (41);

the light guide column (3) is clamped in the light guide cavity (41), the light guide column (3) is provided with a reflecting surface (32) and a light emitting surface (33) which are parallel to each other, the light emitting surface (33) is close to the light emitting opening (42), and the light emitting surface (33) is parallel to the rear plate;

the luminous node (1) comprises a shell (10) and lamp beads (21), the shell (10) comprises a containing part (11) with a containing cavity (111) and a connecting part (12) with a hollow cavity (120), the containing cavity (111) is communicated with the hollow cavity (120), one end, far away from the containing cavity (111), of the hollow cavity (120) is an open end, the lamp beads (21) are arranged in the containing cavity (111) and face the hollow cavity (120), two ends of the light guide column (3) are clamped in the hollow cavity (120) respectively, and the connecting part (12) is clamped in the light guide cavity (41) from two ends of the section bar (4);

the light-emitting nodes (1) are respectively assembled at two ends of the light guide column (3) and emit light from two ends of the light guide column (3) through lamp beads (21).

2. The linear secondary lighting device according to claim 1, wherein the connecting portion (12) is in interference fit with the light guide cavity (41);

the width of the light emitting opening (42) is smaller than that of the light guide cavity (41), and the width of the light guide column (3) is larger than that of the light emitting opening (42); the section bar (4) is a metal section bar;

the number of the light-emitting nodes (1) is two.

3. The linear secondary light emitting device of claim 1, further comprising a light reflecting sheet;

the light-reflecting thin sheet is accommodated in the light guide cavity (41), the light-reflecting thin sheet is arranged between the rear plate and the light guide columns (3), the light-reflecting thin sheet is respectively inconsistent with the rear plate and the light guide columns (3), and the length of the light-reflecting thin sheet is not greater than that of the light guide columns (3).

4. The linear secondary lighting device according to claim 3, wherein the length of the light reflecting sheet is consistent with the length of the light guide pillar (3), and the width of the light reflecting sheet is consistent with the width of the light guide pillar (3).

5. The linear secondary light-emitting device according to claim 1, characterized in that a clamping strip (123) is arranged on the outer surface of the connecting part (12), the length direction of the clamping strip (123) is consistent with the central axis of the connecting part (12), and the outer side of the clamping strip (123) is flush with the outer side of the accommodating part (11);

the clamping strips (123) are respectively clamped in the light-emitting openings (42) from two ends of the outer plate.

6. The linear secondary lighting device according to claim 1, wherein the light guide pillar (3) is a transparent square cylinder, the length of the light guide pillar (3) is not greater than the length of the profile (4), and the size of the light guide pillar (3) is not greater than the size of the light guide cavity (41);

the section bar (4) is a square frame body; the light-emitting nodes (1) at the two ends of the section bar (4) are opened and closed simultaneously.

7. The linear secondary light emitting device according to claim 5, wherein the reflection surface (32) is provided with a lattice (34);

the lattice (34) is a variable-pitch lattice, and the dots in the lattice change density from two ends to the middle of the light guide pillar (3), depth from deep to shallow and area from small to large.

8. The linear secondary light-emitting device according to claim 5, wherein a plurality of ribs (125) are arranged on the surface of the connecting part (12) in parallel, the length direction of the ribs (125) is consistent with the central axis of the connecting part (12), and the thickness of the ribs (125) is smaller than that of the clamping strips (123).

9. The linear secondary lighting device according to claim 5, wherein the lighting node (1) further comprises a PCBA board (22) and a connector (23), the PCBA board (22) and the lamp bead (21) are sequentially accommodated in the accommodating cavity (111) along the accommodating cavity (111) towards the hollow cavity (120), the lamp bead (21) is connected to one side of the PCBA board (22), and the connector (23) is connected to the other side of the PCBA board (22).

10. The linear secondary light-emitting device according to claim 9, wherein the side wall of the accommodating portion (11) is opened with a communication port (113), and the communication port (113) is located at a side far away from the clamping strip (123);

the connector (23) has a wire connection port facing the communication port (113).

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