CN113946083B - Lighting device - Google Patents

Abstract

The invention relates to the technical field of illumination, and particularly discloses an illumination device which comprises a base, a first lamp bead, a second lamp bead with a color temperature different from that of the first lamp bead and a diffusion cover. The base extends along a first direction, and the base is provided with a plurality of mounting surfaces which are arranged around the first direction and face different directions. First lamp pearl sets up on the installation face along first direction, and second lamp pearl and first lamp pearl interval set up. On each installation face, the perpendicular distance from the end face of the first lamp bead departing from the installation face to the center of the base is equal to the perpendicular distance from the end face of the second lamp bead departing from the installation face to the center of the base, and the end faces of the first lamp bead and the second lamp bead on the two installation faces at intervals are provided with an intersection line. The diffusion cover is arranged on the light emitting direction of the first lamp bead and the second lamp bead in a surrounding mode, and the distance from the diffusion cover to the center is not smaller than the distance from the intersection line to the center. By the arrangement, the light emitting brightness and the light emitting range of the lighting device can be increased, and the lighting device has a better light mixing effect.

Description

Lighting device

Technical Field

The invention relates to the technical field of illumination, in particular to an illumination device.

Background

In the creation process of movie, television, advertisement and video contents, a large amount of light is often needed for light supplement, such as a spotlight and a panel light, but the lamp is a single-side light emitting lamp relatively, for example, when moving and shooting, because the position of a camera moves, the angle between a shot object and a shot object changes, a discontinuous phenomenon of light can be generated, and the workload is very large when pictures and videos are decorated in the later period. For example, the bulb and the like can realize the light-emitting of comparatively qxcomm technology, but the power of bulb often is not big enough, and its play plain noodles is less, is difficult for satisfying changeable scene shooting demand, and of course some vegetation light or warning light for example also can realize similar multiaspect light-emitting, but its performance often is difficult for satisfying complicated changeable and professional shooting demand.

Disclosure of Invention

In order to overcome at least one of the above drawbacks of the prior art, the present invention provides an illumination device to solve the problem that the conventional illumination device is not easy to satisfy the complicated and varied professional shooting requirements.

The technical scheme adopted by the invention for solving the problems is as follows:

the embodiment of the invention discloses a lighting device, which comprises:

the base extends along a first direction and is provided with a plurality of mounting surfaces which are arranged around the first direction and face different directions;

the first lamp bead is arranged on the mounting surface along the first direction;

the color temperature of the second lamp bead is different from that of the first lamp bead, and the second lamp bead and the first lamp bead are arranged at intervals;

on each mounting surface, the distance between the end face of the first lamp bead departing from the mounting surface and the vertical line of the center of the base is equal to the distance between the end face of the second lamp bead departing from the mounting surface and the center of the base, and the end faces of the first lamp bead and the second lamp bead on the two spaced mounting surfaces are provided with an intersection line; and

the diffusion cover is followed first direction extension and encircle the cover and establish first lamp pearl the light-emitting direction of second lamp pearl is last, the diffusion cover extremely the distance at base center is not less than the intersection line extremely the distance at base center.

As an alternative, in the embodiment of the present invention, the vertical distances from the mounting surfaces to the center of the base are all equal.

As an optional implementation manner, in an embodiment of the present invention, the first lamp beads and the second lamp beads are respectively located on different mounting surfaces, the first lamp beads are disposed on the mounting surfaces at equal intervals along the first direction, and the second lamp beads are disposed on the mounting surfaces at equal intervals along the first direction, or the first lamp beads and the second lamp beads are disposed in a coplanar manner, and two adjacent lamp beads on two mounting surfaces are the same or different along a cross section perpendicular to the first direction.

As an optional implementation manner, in an embodiment of the present invention, the lighting device further includes a third light bead, the third light bead is an RGB light bead, and the third light bead is disposed between the first light bead and/or the second light bead on the same mounting surface.

As an optional implementation manner, in an embodiment of the present invention, the lighting device further includes a third light bead, where the third light bead is an RGB light bead, the third light bead is located on the mounting surface different from the mounting surface on which the first light bead and the second light bead are located, and the third light bead is located on the mounting surface along the first direction.

As an optional implementation manner, in an embodiment of the present invention, a heat dissipation channel extending along the first direction is formed in the base, a first air inlet and a first air outlet are respectively formed at two ends of the heat dissipation channel, and a heat dissipation tooth is formed by extending an inner wall surface of the channel, which encloses the heat dissipation channel, toward the heat dissipation channel.

As an optional implementation manner, in an embodiment of the present invention, the lighting device further includes an end cover and an end shell, one end of each of the base and the diffusion cover is connected to the end cover, the end cover is provided with an avoidance air port communicated with the first air outlet, the other end of each of the base and the diffusion cover is connected to the end shell, and the end shell is provided with a second air inlet communicated with the first air inlet.

As an optional implementation manner, in an embodiment of the present invention, the lighting device further includes a fan, the end shell is further provided with an air guiding cavity having a second air outlet and a second air inlet, the second air outlet is communicated with the first air inlet, so that the air guiding cavity is communicated with the heat dissipation channel, and the fan is disposed in the air guiding cavity and is used for accelerating airflow flowing in the heat dissipation channel.

As an alternative implementation manner, in an embodiment of the present invention, the end shell further includes an annular inner wall surface for enclosing and forming the air guide cavity, and an inner diameter of the annular inner wall surface is increased and then decreased along a direction from the end cover to the base.

As an optional implementation manner, in an embodiment of the present invention, the lighting device further includes a handle portion connected to the end casing, the handle portion is provided with an air guiding channel having a third air inlet and a third air outlet, the third air outlet is communicated with the second air inlet, so that the air guiding channel is communicated with the heat dissipation channel, and the fan is further configured to accelerate airflow between the air guiding channel and the heat dissipation channel.

In summary, the lighting device provided by the present invention has the following technical effects:

the embodiment of the invention provides a lighting device which comprises a base, a first lamp bead, a second lamp bead and a diffusion cover. The base extends along a first direction, and the base is provided with a plurality of mounting surfaces which are arranged around the first direction and face different directions. First lamp pearl is followed first direction and is set up on the installation face, and the colour temperature of second lamp pearl is different from first lamp pearl, and second lamp pearl and first lamp pearl interval set up. On each installation face, the perpendicular distance from the end face of the first lamp bead departing from the installation face to the center of the base is equal to the perpendicular distance from the end face of the second lamp bead departing from the installation face to the center of the base, and the end faces of the first lamp bead and the second lamp bead on the two installation faces at intervals are provided with an intersection line. The diffusion cover extends along the first direction and surrounds the cover and locates on the light-emitting direction of first lamp pearl, second lamp pearl, and the distance of diffusion cover to the center is not less than the distance of intersection line to center. According to the lighting device, on one hand, the base is arranged in the extending mode along the first direction, and the mounting surface is arranged around the first direction, so that the arrangement area of the lamp beads is increased, the lighting device has high light emitting brightness, and the lighting device can emit light at 360 degrees; on the other hand, because the terminal surfaces of the first lamp bead and the second lamp bead which are positioned on the two spaced mounting surfaces are provided with the intersection line, the light mixing between the lamp beads on the three mounting surfaces can be realized in the partial region which is positioned outside the intersection line, and the distance from the diffusion cover to the center is not less than the distance from the intersection line to the center, namely, at least part of light projected to the diffusion cover is formed by mixing the lamp beads on the three adjacent mounting surfaces, and multiple light mixing is carried out, so that the lighting device has a better light mixing effect.

Drawings

Fig. 1 is a schematic structural diagram of a lighting device according to a first embodiment of the present invention;

fig. 2 is a longitudinal sectional view of a lighting device according to a first embodiment of the present invention;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

fig. 4 is a cross-sectional view of a lighting device according to a first embodiment of the present invention;

fig. 5 is a first schematic exploded view of a lighting device according to a first embodiment of the present invention;

FIG. 6 is an enlarged schematic view at B of FIG. 5;

FIG. 7 is an enlarged schematic view at C of FIG. 5;

FIG. 8 is an enlarged schematic view at D of FIG. 5;

fig. 9 is a second exploded view of the lighting device according to the first embodiment of the invention;

FIG. 10 is an enlarged schematic view at E of FIG. 9;

FIG. 11 is a schematic structural diagram of a base according to a second embodiment of the present invention;

fig. 12 is a schematic structural diagram of a base according to a third embodiment of the invention.

Wherein the reference numerals have the following meanings:

1. a first lamp bead; 2. a second lamp bead; 3. a base; 31. a mounting surface; 32. a heat dissipation channel; 321. a first air inlet; 322. a first air outlet; 33. a heat dissipating tooth; 34. a second connecting portion; 4. a diffusion cover; 5. an end shell; 51. a wind guide cavity; 511. a second air inlet; 512. a second air outlet; 52. a first housing; 521. a first connection portion; 522. a third connecting portion; 523. a fifth connecting part; 53. a second housing; 531. a sixth connecting portion; 54. an annular inner wall surface; 541. a first annular inner wall surface; 542. a second annular inner wall surface; 6. a fan; 61. a support; 62. a seventh connecting portion; 7. an end cap; 71. an annular slot; 72. a first guide slope; 8. a handle portion; 81. an air guide channel; 811. a third air inlet; 812. a third air outlet; 82. a second lead slope; 83. an accommodating cavity; 9. and a third lamp bead.

Detailed Description

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Example one

Referring to fig. 1 to 6, in one embodiment of the present invention, a lighting device is disclosed, which includes a base 3, a first lamp bead 1, a second lamp bead 2, and a diffusion cover 4. The base 3 extends in a first direction (indicated by arrow x in fig. 1), and the base 3 is provided with a plurality of mounting surfaces 31 arranged around the first direction (indicated by arrow y in fig. 1) and facing different mounting surfaces. First lamp pearl 1 sets up on installation face 31 along first direction, and the colour temperature of second lamp pearl 2 is different from first lamp pearl 1, and second lamp pearl 2 sets up with first lamp pearl 1 interval. On each mounting surface 31, the perpendicular distance (shown as r1 in fig. 4) from the end surface of the first lamp bead 1 departing from the mounting surface 31 to the center of the base 3 is equal to the perpendicular distance (shown as r2 in fig. 4) from the end surface of the second lamp bead 2 departing from the mounting surface 31 to the center of the base 3, and the end surfaces of the first lamp bead 1 and the second lamp bead 2 on the two spaced mounting surfaces 31 have an intersection line. It will be appreciated that the centre of the base 3 may be the geometric centre. The spacing between the two spaced mounting surfaces 31 needs to be separated from the adjacent mounting surface, for example, a first mounting surface, a second mounting surface and a third mounting surface are sequentially arranged clockwise along the circumferential direction of the base 3, wherein the first mounting surface and the second mounting surface are adjacent to each other, and the first mounting surface and the third mounting surface are spaced apart from each other. The diffusion cover 4 extends along the first direction and is arranged on the light-emitting direction of the first lamp bead 1 and the second lamp bead 2 in a surrounding manner, and the distance from the diffusion cover 4 to the center of the base 3 (shown as r3 in fig. 4) is not less than the distance from the intersection line to the center of the base 3 (shown as r4 in fig. 4).

As shown in fig. 4, the region i is a region where light mixing is performed only by the lamp beads on the same mounting surface 31, the region ii is a region where light mixing is performed by the lamp beads on two adjacent mounting surfaces 31, and the region iii is a region where light mixing is performed by the lamp beads on three adjacent mounting surfaces 31.

According to the lighting device, on one hand, the base 3 extends along the first direction, and the mounting surface 31 is arranged around the first direction, so that the arrangement area of the lamp beads is increased, the lighting device has high light emitting brightness, and the lighting device can emit light at 360 degrees; on the other hand, because the end faces of the first lamp bead 1 and the second lamp bead 2 on the two mounting surfaces 31 which are arranged at intervals have intersection lines, the partial region outside the intersection line can realize light mixing between the lamp beads on the three mounting surfaces 31, and because the distance from the diffusion cover 4 to the center of the base 3 is not less than the distance from the intersection line to the center of the base 3, at least part of light projected to the diffusion cover 4 is formed by mixing the lamp beads on the three adjacent mounting surfaces 31, multiple light mixing is performed, and thus the lighting device has a better light mixing effect.

In some embodiments, the first lamp bead 1 is one of a cool white lamp bead and a warm white lamp bead, and the second lamp bead 2 is the other of the cool white lamp bead and the warm white lamp bead. In this embodiment, the first lamp bead 1 is used as a cool white lamp bead, and the second lamp bead 2 is used as a warm white lamp bead for example.

Further, first lamp pearl 1 includes first base plate and first light source, and first light source is installed on installation face 31 through first base plate. The first light source may be an LED (light emitting diode), an organic light emitting diode, a quantum dot light emitting diode, a laser light emitting diode, or the like, which is not limited herein.

Further, second lamp pearl 2 includes second base plate and second light source, and the second light source passes through the second base plate to be installed on installation face 31. The second light source may be an LED (light emitting diode), an organic light emitting diode, a quantum dot light emitting diode, a laser light emitting diode, or the like, which is not limited herein.

In some embodiments, the base 3 is an elongated base extending along a first direction, and the mounting surface 31 is an elongated mounting surface disposed around the first direction and facing a different direction. Wherein, the center of the base 3 is the center of the base 3 on the section perpendicular to the first direction, and because the base 3 is extended along the first direction, the center of the base 3 on any section perpendicular to the first direction is located on the central axis (as shown by the central line z in fig. 1) of the base 3.

Further, the vertical distances from the mounting surfaces 31 to the center of the base 3 are equal, and a regular polygon is defined by the mounting surfaces 31 along a cross section perpendicular to the first direction. So set up, first lamp pearl 1 and second lamp pearl 2 locate the central point of installation face 31 and put, can make first lamp pearl 1 deviate from the terminal surface of installation face 31 to the perpendicular distance at base 3 center equals the perpendicular distance of second lamp pearl 2 deviates from the terminal surface of installation face 31 to base 3 center. Specifically, in a cross section perpendicular to the first direction, the plurality of mounting surfaces 31 may be enclosed to form a regular pentagon, a regular hexagon, a regular heptagon, and the like, and the present embodiment is exemplified by the enclosure of the plurality of mounting surfaces 31 to form a regular hexagon.

It should be understood that, in other preferred embodiments, a design manner that the vertical distances from the mounting surfaces 31 to the center of the base 3 are not equal may also be adopted, that is, on a cross section perpendicular to the first direction, a plurality of mounting surfaces 31 surround to form an irregular polygon, as long as the distance from the end surface to the center of the first lamp bead 1 is equal to the distance from the end surface to the center of the second lamp bead 2, and the design manner is not limited herein.

In some embodiments, as an optional implementation manner, the first lamp beads 1 and the second lamp beads 2 are respectively located on different installation surfaces 31, the first lamp beads 1 are equally spaced on the installation surface 31 along the first direction, and the second lamp beads 2 are equally spaced on the installation surface 31 along the first direction. So set up, can mix the light between first lamp pearl 1 on two adjacent installation faces 31 and second lamp pearl 2 to make the lamp pearl on the base 3 can send and mix the light.

As another optional implementation, the first lamp bead 1 and the second lamp bead 2 are coplanar, and in a cross section perpendicular to the first direction, two lamp beads on two adjacent mounting surfaces 31 are the same. So set up, be located first lamp pearl 1 and second lamp pearl 2 on same installation face 31 and can carry out mixed light once, then can and then the secondary mix light between first lamp pearl 1 on two adjacent installation faces 31 and second lamp pearl 2 to reach better mixed light effect.

As another optional implementation manner, the first lamp bead 1 and the second lamp bead 2 are disposed in a coplanar manner, and in a cross section perpendicular to the first direction, two lamp beads on two adjacent mounting surfaces 31 are different. So set up, be located first lamp pearl 1 and second lamp pearl 2 on same installation face 31 and can once mix the light, then can and then the secondary mix the light between first lamp pearl 1 and the second lamp pearl 2 on two adjacent installation faces 31 to reach better mixed light effect.

In some embodiments, the diffusion cover 4 is a long cylindrical diffusion cover 4 extending along the first direction, so that the diffusion cover 4 can be completely covered on the light emitting direction of the first lamp bead 1 and the second lamp bead 2.

Further, the surface of the diffusion cover 4 is provided with a recess (not shown) and/or a protrusion (not shown), wherein the provision of the recess and/or the protrusion on the surface of the diffusion cover 4 specifically includes the following three cases: the inner surface of the diffusion cover 4 is provided with a recess, the inner surface of the diffusion cover 4 is provided with a projection, the inner surface of the diffusion cover 4 is provided with a recess and a projection, the outer surface of the diffusion cover 4 is provided with a recess, the outer surface of the diffusion cover 4 is provided with a projection, and the outer surface of the diffusion cover 4 is provided with a recess and a projection. The arrangement is that the surface roughness of the diffusion cover 4 is changed, so that the surface of the diffusion cover 4 is reflected, refracted, diffracted and diffused for many times, and the light rays emitted by the diffusion cover 4 are more uniform and softer.

It is understood that in other preferred embodiments, the light mixing effect of the lighting device can be improved by disposing a diffusion sheet between the diffusion cover 4 and the lamp bead, by disposing a local corrugation on the surface of the diffusion cover 4, or by forming a mixing layer inside the cover body of the diffusion cover 4, which is not limited herein.

In some embodiments, a heat dissipation channel 32 extending along a first direction is formed in the base 3, two ends of the heat dissipation channel 32 are respectively provided with a first air inlet 321 and a first air outlet 322, and a heat dissipation tooth 33 is formed by extending an inner wall surface of the channel enclosing the heat dissipation channel 32 toward the heat dissipation channel 32 of the base 3. So set up, the heat that first lamp pearl 1 and second lamp pearl 2 produced transmits to the passageway internal face of base 3 and heat dissipation tooth 33 through base 3 on the surface, the passageway internal face of base 3 and heat dissipation tooth 33 heat exchange with the air current in the heat dissipation channel 32 carry out the heat exchange with heat transfer to heat dissipation channel 32 in the heat dissipation channel 32, the air current in the heat dissipation channel 32 carries out the heat exchange with the outer air current of lighting device again to realize lighting device's heat dissipation cooling. Moreover, the heat exchange area between the base 3 and the heat dissipation channel 32 can be effectively increased by the heat dissipation teeth 33, so that the heat exchange efficiency of the base 3 can be effectively improved, and the heat dissipation efficiency of the lighting device can be improved.

Further, can know from the foregoing, along the cross-section of perpendicular to first direction, enclose between a plurality of installation faces 31 and close and form regular hexagon, preferably, along the cross-section of perpendicular to first direction, heat dissipation channel 32 is the regular hexagon who corresponds with it, also forms six passageway internal walls that encircle the first direction setting in the heat dissipation channel 32 promptly to make base 3 have great heat dissipation channel 32 and heat radiating area under the prerequisite that satisfies the intensity and the thickness requirement that set up first lamp pearl 1 and second lamp pearl 2.

Furthermore, a plurality of radiating teeth 33 are arranged on the inner wall surface of the same channel along the first direction, and the height of the radiating tooth 33 in the middle is higher than the height of the radiating teeth 33 on both sides. With such an arrangement, the heat dissipation area between the inner wall surface of the channel of the base 3 and the heat dissipation channel 32 can be further effectively increased, so that the heat dissipation effect of the lighting device can be further improved.

It is understood that in other preferred embodiments, the heat dissipation teeth 33 on the mounting surface 31 may be designed to be highly equivalent, and are not limited herein.

Referring to fig. 5 to 10, in some embodiments, the lighting device further includes an end cover 7 and an end shell 5, one end of the base 3 and one end of the diffusion cover 4 are both connected to the end cover 7, the end cover 7 is provided with an air avoiding opening communicated with the first air outlet 322, the other end of the base 3 and the other end of the diffusion cover 4 are both connected to the end shell 5, and the end shell 5 is provided with a second air inlet 511 communicated with the first air inlet 321. With such an arrangement, the air flow in the external environment enters the heat dissipation channel 32 along the second air inlet 511 and the first air inlet 321 to perform heat exchange with the inner wall surface of the channel of the base 3, and is discharged along the first air outlet 322 and the avoidance air inlet.

In some embodiments, in order to improve the sealing performance between the diffusion cover 4 and the end cap 7, an annular slot 71 is provided on the end cap 7, and the annular end of the diffusion cover 4 is inserted into the annular slot 71. With such an arrangement, the path for the outside liquid to enter between the diffusion cover 4 and the base 3 can be extended, thereby improving the sealing effect.

Further, in order to further improve the sealing property between the diffusion cover 4 and the end cap 7, the lighting device further includes a sealing member (not shown) which is provided in the annular insertion groove 71 and abuts between the inner wall surface of the annular insertion groove 71 and the end surface of the diffusion cover 4, thereby further improving the sealing property between the diffusion cover 4 and the end cap 7.

The sealing member may be an elastic sealing ring or a sealing foam, and is not limited herein.

In some embodiments, the end cap 7 is provided with a first inclined guiding surface 72 at a position corresponding to the heat dissipating channel 32, and the first inclined guiding surface 72 is gradually inclined outwards along the direction from the end shell 5 to the base 3. So set up, first lead inclined plane 72 helps the derivation of the liquid in heat dissipation channel 32 to can prevent lighting device hydrops.

In some embodiments, the end casing 5 is further provided with an air guiding cavity 51 having a second air outlet 512 and a second air inlet 511, and the second air outlet 512 is communicated with the first air inlet 321, so that the air guiding cavity 51 is communicated with the heat dissipating channel 32. With such an arrangement, the air flow in the external environment enters the air guiding cavity 51 along the second air inlet 511, and then enters the first air inlet 321 along the second air outlet 512.

Further, the end shell 5 includes a first shell 52 and a second shell 53 connected in an involution manner, a wind guiding cavity 51 is formed between the first shell 52 and the second shell 53, and the other ends of the base 3 and the diffusion cover 4 are connected to the first shell 52.

In some embodiments, the end shell 5 further includes an annular inner wall surface 54 for enclosing the air guiding cavity 51, and a radius of the annular inner wall surface 54 increases and then decreases along a direction from the end cap 7 to the base 3 to guide out the liquid in the heat dissipating channel 32. With such an arrangement, since the radius of the annular inner wall surface 54 enclosing the air guiding cavity 51 is increased along the direction from the end cover 7 to the base 3, the liquid in the heat dissipation channel 32 is facilitated to be guided into the annular inner wall surface 54 along the first air inlet 321 and the second air outlet 512, and the radius of the annular inner wall surface 54 is reduced along the direction from the end cover 7 to the base 3, the liquid in the air guiding cavity 51 is facilitated to be guided out of the lighting device along the second air inlet 511, so as to avoid liquid accumulation in the lighting device, and thus the lighting device can have better performance.

Further, in the direction from the end cap 7 to the base 3, the radius of the annular inner wall surface 54 increases first in an arc line or a broken line and then decreases in an arc line or a broken line. In the present embodiment, the radius of the annular inner wall surface 54 increases in an arc first and then decreases in an arc in the direction from the end cap 7 to the base 3.

Furthermore, the annular inner wall surface 54 includes a first annular inner wall surface 541 which is disposed on the first casing 52 and has a radius increasing along the direction from the end cap 7 to the base 3, and a second annular inner wall surface 542 which is disposed on the second casing 53 and has a radius decreasing along the direction from the end cap 7 to the base 3, and the liquid in the heat dissipation channel 32 is guided into the air guiding cavity 51 along the first annular inner wall surface 541 and guided out of the air guiding cavity 51 by the second annular inner wall surface 542, so that the liquid in the heat dissipation channel 32 is guided out, and liquid accumulation of the lighting device is prevented.

In some embodiments, as can be seen from the above description, the base 3 is connected to the first housing 52, in order to connect the base 3 and the first housing 52, the first housing 52 is provided with the first connecting portion 521, the base 3 is provided with the second connecting portion 34, and the base 3 is connected to the first housing 52 through the first connecting portion 521 and the second connecting portion 34.

Further, the first connecting portion 521 and the second connecting portion 34 are both connecting holes, and the first connecting portion 521 and the second connecting portion 34 are connected by a fastener. It is understood that, in other preferred embodiments, the first connection portion 521 and the second connection portion 34 may also be fixed by a screw connection or the like, and the connection is not limited herein.

Illustratively, the first connecting portions 521, the second connecting portions 34 and the fasteners are all plural, the plural first connecting portions 521 are disposed on the first casing 52 at intervals around the first direction, the plural second connecting portions 34 are disposed on the base 3 at intervals around the first direction, and the plural second connecting portions 34 are disposed on the base 3 at intervals around the first direction. The first connecting portions 521 and the second connecting portions 34 are spaced at intervals, so that the first housing 52 and the base 3 are stressed more uniformly, and the connection stability of the base 3 and the first housing 52 can be improved.

In some embodiments, as can be seen from the above description, the diffusion cover 4 is connected to the first casing 52, in order to connect the diffusion cover 4 and the first casing 52, the first casing 52 is provided with a third connection portion 522, the diffusion cover 4 is provided with a fourth connection portion (not shown), and the diffusion cover 4 is connected to the first casing 52 through the third connection portion 522 and the fourth connection portion.

Further, the third connecting portion 522 and the fourth connecting portion are both connecting holes, and the third connecting portion 522 and the fourth connecting portion are connected by a fastener. It is understood that, in other preferred embodiments, the third connecting portion 522 and the fourth connecting portion may be fixed by a screw connection or the like, which is not limited herein.

Illustratively, the number of the third connecting portions 522, the number of the fourth connecting portions, and the number of the fasteners are all plural, the plural third connecting portions 522 are disposed on the first casing 52 at intervals around the first direction, the plural fourth connecting portions are disposed on the diffusion cover 4 at intervals around the first direction. The mode that a plurality of third connecting parts 522 and a plurality of intervals of fourth connecting part set up is adopted for first casing 52 and diffusion cover 4 atress are more even, and can improve the stability of being connected of diffusion cover 4 and first casing 52.

Preferably, the first connecting portion 521 is disposed on the inner side of the first casing 52 close to the second air outlet 512, and the third connecting portion 522 is disposed on the inner side of the first casing 52 far from the second air outlet 512, so that the connecting portions and the fastening members are connected and dispersed, and the first casing 52 is prevented from being stressed too intensively, thereby protecting the first casing 52.

In some embodiments, the lighting device further includes a fan 6, the fan 6 is provided with a bracket 61, the fan 6 is fixed in the air guiding cavity 51 through the bracket 61, and the fan 6 is used for accelerating the air flow in the heat dissipating channel 32. With such an arrangement, the fan 6 can accelerate the airflow in the heat dissipation channel 32, so as to improve the airflow flowing in the heat dissipation channel 32, thereby improving the heat exchange between the airflow in the heat dissipation channel 32 and the airflow outside the lighting device, and further improving the heat dissipation effect of the lighting device.

Further, the fan 6 is fixed to the first casing 52 and/or the second casing 53 by a bracket 61. The fixing of the fan 6 to the first casing 52 and/or the second casing 53 through the bracket 61 specifically includes fixing the fan 6 to the first casing 52 through the bracket 61, fixing the fan 6 to the second casing 53 through the bracket 61, and fixing the fan 6 to the first casing 52 and the second casing 53 through the bracket 61. With such an arrangement, the fan 6 can be firstly installed on the first casing 52 or the second casing 53, and then the second casing 53 and the first casing 52 are connected in an involution manner, so that the fan 6 can be conveniently installed and fixed on the end casing 5. The present embodiment is exemplified in that the fan 6 is fixed to the first casing 52 and the second casing 53 via the bracket 61.

Further, in order to fix the bracket 61 on the first housing 52 and the second housing 53, the first housing 52 is provided with a fifth connecting portion 523, the second housing 53 is provided with a sixth connecting portion 531, the bracket 61 is provided with a seventh connecting portion 62, and the bracket 61 is connected to the first housing 52 through the fifth connecting portion 523 and the sixth connecting portion 531 and connected to the second housing 53 through the fifth connecting portion 523 and the seventh connecting portion 62.

Specifically, the seventh connecting portion 62 is provided at an end portion of the bracket 61 near the annular inner wall surface 54 to facilitate connection of the seventh connecting portion 62 with the first and second housings 52 and 53.

Preferably, the third connection part 522 and the fifth connection part 523 are integrally formed. By the design, the structure of the lighting device can be simplified, and the production and manufacturing difficulty of the lighting device can be reduced.

In some embodiments, the lighting device further includes a handle portion 8 connected to the end housing 5, the handle portion 8 is particularly connected to the second housing 53, the handle portion 8 is provided with a wind guiding channel 81 having a third wind inlet 811 and a third wind outlet 812, the third wind outlet 812 is communicated with the second wind inlet 511, so that the wind guiding channel 81 is communicated with the heat dissipating channel 32, and the fan 6 is further configured to accelerate the airflow between the wind guiding channel 81 and the heat dissipating channel 32. So arranged, on the one hand, the handle portion 8 facilitates the user to hold the lighting device when in use; on the other hand, the fan 6 can guide the airflow in the air guide channel 81 into the heat dissipation channel 32 to realize the circulation of the airflow, thereby improving the heat dissipation efficiency of the lighting device; in the third aspect, since the air guiding channel 81 is communicated with the air guiding cavity 51, the liquid in the air guiding cavity 51 is guided to the air guiding channel 81 through the second annular inner wall surface 542 and is discharged to the outside of the lighting device through the air guiding channel 81, thereby realizing the liquid discharge of the lighting device.

Alternatively, the handle portion 8 is an elongated handle for easy holding, and its length may be less than the length of the base 3, that is, the length inside the wind guiding channel 81 is less than the length of the heat dissipating channel 32, so that the fan 6 has better air draft effect.

Further, one end of the handle portion 8 away from the end housing 5 is provided with a second guiding inclined plane 82 communicated with the air guiding channel 81, and the second guiding inclined plane 82 is gradually inclined outwards along the direction from the end cover 7 to the base 3. In this way, the second inclined guide surface 82 helps to guide out the liquid in the air guide passage 81, thereby preventing liquid accumulation in the lighting device.

Further, an accommodating cavity 83 for accommodating electronic components is formed in the handle portion 8, and the accommodating cavity 83 is an annular cavity arranged around the air guiding channel 81. The electronic components (not shown) may specifically include electronic components such as a battery and a circuit board, and are not limited herein. In the present embodiment, the electronic components including the battery and the circuit board are exemplified, the circuit board is electrically connected to the battery, and the light mixing lamp bead and the fan 6 are electrically connected to the circuit board. With the arrangement, on one hand, the electronic components can be arranged on the lighting device through the arrangement of the accommodating cavity 83 for accommodating the electronic components, so that the lighting device does not need an external power supply when in use, and is convenient and fast to use; on the other hand, since the accommodating cavity 83 is an annular channel surrounding the air guide channel 81, the space on the handle portion 8 can be more compact and reasonable, so as to improve the space utilization rate of the handle portion 8.

In some embodiments, in order to connect the handle portion 8 and the second housing 53, an eighth connecting portion (not shown) is disposed on the second housing 53, a ninth connecting portion (not shown) is disposed on the handle portion 8, and the second housing 53 is connected to the handle portion 8 through the eighth connecting portion and the ninth connecting portion.

Further, the eighth connecting portion is one of an internal thread and an external thread, and the ninth connecting portion is the other of the internal thread and the external thread. So set up, connect simple and convenient.

It is understood that, in other preferred embodiments, the eighth connecting portion and the ninth connecting portion may be fixed by a bolt connection or the like, and the connection is not limited herein.

Example two

Referring to fig. 11, a second embodiment of the present invention discloses an illumination device, which is different from the first embodiment in that:

the lighting device further comprises a third lamp bead 9, the third lamp bead 9 is an RGB (red, green and blue) lamp bead, and the third lamp bead 9 is arranged between the first lamp bead 1 and/or the second lamp bead 2 on the same mounting surface 31. It can be understood that the third lamp bead 9 may be a lamp bead packaged by LEDs of R, G, B with three colors, and optionally, the three independent R chips, G chips and B chips are arranged densely to form a relatively complete third lamp bead 9. Adopt warm white light, cold white light and RGB lamp pearl, polychrome closes light for lighting device sends the light quality higher.

Specifically, when the first lamp beads 1 and the second lamp beads 2 are respectively positioned on different mounting surfaces 31, the first lamp beads 1 are arranged on the mounting surfaces 31 at equal intervals along the first direction, and the second lamp beads 2 are arranged on the mounting surfaces 31 at equal intervals along the first direction, the third lamp beads 9 are arranged between the first lamp beads 1 on the same mounting surface 31, and the third lamp beads 9 are arranged between the second lamp beads 2 on the same mounting surface 31; when the first lamp bead 1 and the second lamp bead 2 are arranged in a coplanar manner, and two adjacent lamp beads on the two installation surfaces 31 are the same or different along a cross section perpendicular to the first direction, a third lamp bead 9 is arranged between the first lamp bead 1 and the second lamp bead 2.

The specific structure of the lighting device can refer to the first embodiment, and is not described herein in detail.

EXAMPLE III

Referring to fig. 12, a third embodiment of the present invention discloses an illumination device, which is different from the first embodiment in that:

the lighting device further comprises a third lamp bead 9, the third lamp bead 9 is an RGB lamp bead, the third lamp bead 9 is located on a mounting surface 31 different from the first lamp bead 1 and the second lamp bead 2, and the third lamp bead 9 is arranged on the mounting surface 31 along the first direction. It can be understood that the third lamp bead 9 may be a lamp bead packaged by LEDs of R, G, B with three colors, and optionally, the three independent R chips, G chips and B chips are arranged densely to form a relatively complete third lamp bead 9. Adopt warm white light, cold white light and RGB lamp pearl, polychrome closes light for lighting device sends the light quality higher.

Specifically, when the first lamp beads 1 and the second lamp beads 2 are respectively positioned on different mounting surfaces 31, the first lamp beads 1 are arranged on the mounting surfaces 31 at equal intervals along the first direction, and the second lamp beads 2 are arranged on the mounting surfaces 31 at equal intervals along the first direction, the third lamp beads 9 are arranged on the mounting surfaces 31 between the mounting surfaces 31 provided with the first lamp beads 1 and the mounting surfaces 31 provided with the second lamp beads 2; when the first lamp bead 1 and the second lamp bead 2 are arranged in a coplanar manner, and two adjacent lamp beads on the two installation surfaces 31 are the same or different along the section perpendicular to the first direction, the third lamp bead 9 is arranged on the installation surface 31 adjacent to the installation surface 31 on which the first lamp bead 1 and the second lamp bead 2 are arranged.

The specific structure of the lighting device can refer to the first embodiment, and is not described herein in detail.

The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that modifications and adaptations can be made by those skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.

Claims (9)

1. An illumination device, comprising:

the heat dissipation device comprises a base (3) extending along a first direction, wherein the base (3) is provided with a plurality of mounting surfaces (31) which are arranged around the first direction and face different directions, a heat dissipation channel (32) extending along the first direction is formed in the base (3), and two ends of the heat dissipation channel (32) are respectively provided with a first air inlet (321) and a first air outlet (322);

the first lamp beads (1) are arranged on the mounting surface (31) along the first direction;

the color temperature of the second lamp bead (2) is different from that of the first lamp bead (1), and the second lamp bead (2) and the first lamp bead (1) are arranged at intervals;

on each mounting surface (31), the vertical distance from the end face of the first lamp bead (1) departing from the mounting surface (31) to the center of the base (3) is equal to the vertical distance from the end face of the second lamp bead (2) departing from the mounting surface (31) to the center of the base (3), and the end faces of the first lamp bead (1) and the second lamp bead (2) on the two spaced mounting surfaces (31) are provided with an intersection line;

the diffusion cover (4) extends along the first direction and is arranged on the light emitting directions of the first lamp bead (1) and the second lamp bead (2) in a surrounding manner, and the distance from the diffusion cover (4) to the center of the base (3) is not less than the distance from the intersection line to the center of the base (3);

one end of the base (3) and one end of the diffusion cover (4) are both connected to the end shell (5), and a second air inlet (511) communicated with the first air inlet (321) is formed in the end shell (5); and

the lighting device further comprises a handle part (8) connected to the end shell (5), a wind guide channel (81) with a third wind inlet (811) and a third wind outlet (812) is arranged on the handle part (8), and the third wind outlet (812) is communicated with the second wind inlet (511), so that the wind guide channel (81) is communicated with the heat dissipation channel (32).

2. A lighting device as claimed in claim 1, characterized in that the vertical distances from the mounting surfaces (31) to the center of the base (3) are all equal.

3. The lighting device according to claim 1, wherein the first lamp beads (1) and the second lamp beads (2) are respectively located on different mounting surfaces (31), the first lamp beads (1) are equally spaced on the mounting surfaces (31) along the first direction, the second lamp beads (2) are equally spaced on the mounting surfaces (31) along the first direction, or the first lamp beads (1) and the second lamp beads (2) are coplanar and arranged on a section perpendicular to the first direction, and two lamp beads on two adjacent mounting surfaces (31) are the same or different.

4. A lighting device as claimed in claim 3, characterized in that said lighting device further comprises a third light bead (9), said third light bead (9) being an RGB light bead, said third light bead (9) being provided between said first light bead (1) and/or said second light bead (2) on the same mounting surface (31).

5. The lighting device according to claim 3, further comprising a third lamp bead (9), wherein the third lamp bead (9) is an RGB lamp bead, the third lamp bead (9) is located on the mounting surface (31) different from the first lamp bead (1) and the second lamp bead (2), and the third lamp bead (9) is arranged on the mounting surface (31) along the first direction.

6. The lighting device according to any one of claims 1 to 5, wherein a heat dissipation tooth (33) is formed by extending an inner wall surface of the base (3) surrounding the heat dissipation channel (32) toward the heat dissipation channel (32).

7. The lighting device according to claim 6, further comprising an end cap (7), wherein the other ends of the base (3) and the diffusion cover (4) are connected to the end cap (7), and an air vent communicated with the first air outlet (322) is formed in the end cap (7).

8. The lighting device according to claim 7, further comprising a fan (6), wherein the end housing (5) is further provided with a wind guiding cavity (51) having a second wind outlet (512) and a second wind inlet (511), the second wind outlet (512) is communicated with the first wind inlet (321) to enable the wind guiding cavity (51) to be communicated with the heat dissipating channel (32), and the fan (6) is disposed in the wind guiding cavity (51) to accelerate the airflow in the heat dissipating channel (32) and accelerate the airflow between the wind guiding channel (81) and the heat dissipating channel (32).

9. The lighting device according to claim 8, wherein the end housing (5) further comprises an annular inner wall surface (54) for enclosing the air guiding cavity (51), and an inner diameter of the annular inner wall surface (54) is increased and then decreased along a direction from the end cap (7) to the base (3).

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