CN210601277U - Lighting lamp - Google Patents

Abstract

The utility model is suitable for an illumination technology field provides an illumination lamp. The utility model discloses a lighting lamp includes first radiating piece, locate the second radiating piece of first radiating piece one end, and locate the light source subassembly in the first radiating piece, the light source subassembly includes the light source, locate the support that the one side of second radiating piece was kept away from to the light source, and locate the lens that the support kept away from one side of light source, the second radiating piece includes the central part, by the central part at least three trunk portion of extension formation all around, and by at least one branch portion that the trunk portion extends the formation outwards, the heat radiating area of second radiating piece has been improved greatly, thereby improve the utility model discloses a lighting lamp's heat dispersion.

Description

Lighting lamp

Technical Field

The utility model relates to the technical field of lighting technology, in particular to illumination lamp.

Background

The heat dissipation performance of the down lamp is one of the main factors affecting the light emitting performance and the service life of the down lamp. The existing down lamp comprises a radiating piece and a light source arranged inside the radiating piece, wherein heat emitted by the light source is conducted to the radiating piece and is radiated through heat exchange between the radiating piece and the external environment. However, the heat dissipation effect of the existing down lamp is not ideal, and the heat dissipation requirement of the light source cannot be met, which undoubtedly causes the use power of the light source to be limited.

Disclosure of Invention

An object of the utility model is to provide an illumination lamps and lanterns aims at solving the poor technical problem of heat dispersion of current down lamp.

The utility model discloses a realize like this, a lighting lamp, include first radiating piece, locate the second radiating piece of first radiating piece one end, and locate light source subassembly in the first radiating piece, the light source subassembly includes the light source, locates the light source is kept away from the support of one side of second radiating piece, and locates the support is kept away from the lens of one side of light source, the second radiating piece include the central part, by the central part extends the at least three trunk that forms all around, and by at least one branch portion that forms is extended towards relative both sides to the trunk.

Further, the second heat dissipation element is dendritic or fishbone-shaped.

Furthermore, at least three main parts are radially distributed by taking the central part as the center, and the main parts respectively extend towards two opposite sides to form at least one branch part.

Furthermore, a through hole is formed in one end, close to the central portion, of the main portion along the height direction of the main portion.

Furthermore, a plurality of ribs are respectively arranged on two opposite sides of the branch part, so that the side surface of the branch part is wavy.

Further, the distance between two adjacent branch parts is more than or equal to 5 mm.

Further, the height of the second heat dissipation member is 50mm to 70 mm.

Furthermore, the lighting lamp further comprises a turntable arranged at one end, away from the second heat dissipation member, of the first heat dissipation member, and a regulating member with one end rotatably connected with the turntable, wherein one end, away from the turntable, of the regulating member is connected with the first heat dissipation member.

Furthermore, the turntable is provided with a hollow cavity, one end of the first heat radiating piece, which is far away from the second heat radiating piece, extends into the hollow cavity, and the turntable is provided with an avoidance notch which is used for avoiding interference with rotation of the first heat radiating piece; the shape of one side of the second heat dissipation part corresponding to the avoidance notch is matched with the avoidance notch so as to avoid interference with rotation of the second heat dissipation part.

Furthermore, the lighting lamp further comprises an insulating gasket which is arranged in the first heat dissipation piece and positioned on one side, far away from the support, of the light source.

The utility model provides a lighting lamp, including first radiating piece, locate the second radiating piece of first radiating piece one end, and locate the light source subassembly in the first radiating piece, the light source subassembly includes the light source, locate the support that the light source kept away from one side of second radiating piece, and locate the lens that the support kept away from one side of light source, the second radiating piece includes the central part, by the central part at least three trunk portion of extending formation all around, and by at least one branch portion that the trunk portion extends formation outwards, the heat radiating area of second radiating piece has been improved greatly, thereby improve the utility model discloses a lighting lamp's heat dispersion.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions 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 a schematic perspective view of an illumination lamp provided in an embodiment of the present invention;

fig. 2 is an exploded schematic view of a lighting fixture according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a turntable according to an embodiment of the present invention;

fig. 4 is an exploded schematic view of a first heat sink and a second heat sink according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1-a turntable; 11-a hollow cavity; 12-avoiding a notch; 2-an adjusting part; 21-a conditioning aperture; 31-a first heat sink; 3111-a holding cavity; 3112-hollow out grooves; 312-a projection; 32-a second heat sink; 321-a central part; 3211-boss; 322-a trunk; 3221-a through hole; 323-branch portion; 3231-Ribs; 4-a light source assembly; 42-a light source; 43-a scaffold; 44-a lens; 441-a light-condensing portion; 45-a light-reflecting cup; 5-face ring; 51-a resilient mount; 6-pressing a ring; 61-a limit protrusion; 8-insulating spacer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the patent. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.

In order to explain the technical solution of the present invention, the following detailed description is made with reference to the specific drawings and examples.

Referring to fig. 1, 2 and 4, an embodiment of the present invention provides a lighting lamp, including a first heat sink 31, a second heat sink 32 disposed at one end of the first heat sink 31, and a light source assembly 4 disposed in the first heat sink 31, where the light source assembly 4 includes a light source 42, a bracket 43 disposed at one side of the light source 42 away from the second heat sink 32, and a lens 44 disposed at one side of the bracket 43 away from the light source 42, and the second heat sink 32 includes a central portion 321, at least three main portions 322 formed by extending the central portion 321 towards the periphery, and at least one branch portion 323 formed by extending the main portions 322 outwards, so that the second heat sink 32 is dendritic or fishbone-shaped. In this embodiment, at least three main portions 322 are radially distributed with the central portion 321 as the center, and at least one branch portion 323 is formed by extending the main portion 322 towards two opposite sides thereof.

The utility model discloses illumination lamps and lanterns include first radiating piece 31, locate the second radiating piece 32 of first radiating piece 31 one end, and locate light source subassembly 4 in the first radiating piece 31, light source subassembly 4 includes light source 42, locate the support 43 of one side that second radiating piece 32 was kept away from to light source 42, and locate the lens 44 of one side that light source 42 was kept away from to support 43, second radiating piece 32 includes central part 321, by central part 321 towards at least three trunk portion 322 of extending formation all around, and by at least one branch portion 323 that trunk portion 322 extended formation outwards, the heat radiating area of second radiating piece 32 has been improved greatly, thereby improve the utility model discloses illumination lamps and lanterns's heat dispersion.

Further, please refer to fig. 4, as an embodiment of the present invention, a plurality of ribs 3231 are respectively disposed on two opposite sides of the supporting portion 323, so that the side surface of the supporting portion 323 is wavy, and the heat dissipation area of the supporting portion 323 is increased, thereby improving the heat dissipation efficiency of the second heat dissipation member 32, and the lighting fixture of the embodiment of the present invention has a better heat dissipation performance.

Specifically, if the density of the branch portions 323 on each main portion 322 is large, that is, the distance between two adjacent branch portions 323 is small, although the heat dissipation area of the second heat dissipation member 32 is increased, the heat dissipation efficiency of the second heat dissipation member 32 cannot be improved well because the air between two adjacent branch portions 323 is small. In order to make enough air exist between two adjacent branch portions 323, so as to facilitate heat exchange with the second heat dissipation member 32 and improve heat dissipation efficiency, the distance between two adjacent branch portions 323 may be set to be greater than or equal to 5mm, in this embodiment, the air between two adjacent branch portions 323 may rise after absorbing heat of the second heat dissipation member 32, and then new air may flow into the space between two adjacent branch portions 323, so that air convection between two adjacent branch portions 323 is smooth, thereby greatly improving heat dissipation efficiency, in addition, the above arrangement may also reduce the weight of the second heat dissipation member 32, and may reduce production cost.

Further, as an embodiment of the present invention, in order to improve the heat dissipation efficiency, the height of the second heat dissipation member 32 may be increased, and due to the limitation of the whole lamp height, the height of the second heat dissipation member 32 is preferably set to 50mm to 70mm, for example, the height of the second heat dissipation member 32 is 63 mm.

Further, please refer to fig. 2 and fig. 3, as an embodiment of the present invention, the lighting fixture further includes a turntable 1 disposed at one end of the first heat dissipating member 31 far away from the second heat dissipating member 32, and an adjusting member 2 having one end rotatably connected with the turntable 1, wherein one end of the adjusting member 2 far away from the turntable 1 is connected with the first heat dissipating member 31, so that the lighting fixture of the embodiment of the present invention can rotate relative to the turntable 1, so as to adjust the lighting angle. In this embodiment, one end of the adjusting element 2 is rotatably connected to the turntable 1, an adjusting hole 21 is formed in the adjusting element 2, the adjusting hole 21 may be, but is not limited to, a kidney-shaped hole, and a portion of the first heat dissipating element 31 penetrates through the adjusting hole 21 and can reciprocate in the adjusting hole 21 to adjust the relative height between the first heat dissipating element 31 and the turntable 1.

Specifically, the first heat sink 31 has a protruding portion 312 embedded in the adjusting hole 21, a connecting hole (not shown) is formed in the protruding portion 312 corresponding to the adjusting hole 21, and a bolt passes through the connecting hole from a side of the adjusting hole 21 away from the protruding portion 312 and is locked with the nut, so that the protruding portion 312 is interference-fitted in the adjusting hole 21.

Specifically, the turntable 1 has a hollow cavity 11, one end of the first heat dissipation member 31, which is far away from the second heat dissipation member 32, extends into the hollow cavity 11, an avoidance notch 12 is formed in the turntable 1, and the avoidance notch 12 is used for avoiding interference with rotation of the first heat dissipation member 31; the shape of the side of the second heat sink 32 corresponding to the avoidance gap 12 is matched to the avoidance gap 12 to avoid interference with the rotation of the second heat sink 32.

Further, referring to fig. 2 and fig. 4, as an embodiment of the present invention, the first heat sink 31 has a receiving cavity 3111, the light source assembly 4 is disposed in the receiving cavity 3111, the light source 42 is disposed at the bottom of the receiving cavity 3111, and the bracket 43 and the lens 44 are sequentially disposed on the light source 42. In this embodiment, the lens 44, the bracket 43, the light source 42, the first heat dissipation member 31, and the second heat dissipation member 32 may be coupled together by the same fastener (not shown), which may be, but is not limited to, a bolt, for ease of assembly.

Specifically, a through hole 3221 is formed in one end of the trunk portion close to the central portion along the height direction of the trunk portion, the fastener sequentially penetrates through the lens 44, the bracket 43 and the first heat dissipation member 31 and then is in threaded connection with the through hole, and the light source 42 is clamped at the bottoms of the bracket 43 and the accommodating cavity 3111, so that the lens 44, the bracket 43, the light source 42, the first heat dissipation member 31 and the second heat dissipation member 32 are connected together.

Specifically, the lighting fixture further includes an insulating gasket 8 disposed in the first heat dissipation member 31 and located on a side of the light source 42 away from the bracket 43, and the insulating gasket 8 may be, but is not limited to, a heat conductive silicone sheet. In this embodiment, a hollow groove 3112 is disposed at the bottom of the accommodating cavity 3111 of the first heat dissipating member 31, a boss 3211 embedded in the hollow groove 3112 is disposed at one end of the second heat dissipating member 32 close to the first heat dissipating member 31, that is, the boss 3211 is a part of the bottom surface of the accommodating cavity 3111, the boss 3211 contacts the insulating gasket 8, so as to reduce a thermal resistance channel and achieve a good heat conducting effect, and the light source 42 can conduct heat to the second heat dissipating member 32 through the insulating gasket 8 and the boss 3211.

Further, please refer to fig. 2, as a specific embodiment of the present invention, the light source assembly 4 further includes a reflective cup 45 with a hollow structure, the reflective cup 45 is covered on one side of the lens 44 away from the bracket 43, the lens 44 includes a light-gathering portion 441 near the reflective cup 45 and used for gathering light, the diameter of the reflective cup 45 is gradually increased from the lens 44 toward the direction near the reflective cup 45, the reflective cup 45 is covered on the lens 44, so that the light-gathering portion 441 of the lens 44 is accommodated in the cavity of the reflective cup 45. In this embodiment, the height of the reflective cup 45 is greater than that of the lens 44, and the depth of the cavity of the reflective cup 45 is greater than that of the light-gathering portion 441 of the lens 44, so that the reflective cup 45 can completely accommodate the light-gathering portion 441 in the cavity of the reflective cup 45, and the light extraction rate is effectively improved.

Specifically, because the diameter of the reflective cup 45 is gradually increased from the lens 44 toward the direction close to the reflective cup 45, and the reflective cup 45 covers the lens 44, heat generated by the light source 42 during operation can flow to the rim of the reflective cup 45 and spiral at the rim, in order to solve the heat dissipation problem, the reflective cup 45 should be made of metal materials such as alloy aluminum or iron, the heat conductivity of the metal materials is good, the reflective cup 45 is convenient to conduct heat to the first heat dissipation member 31, and the temperature in the accommodating cavity 3111 of the reflective cup 45, the lens 44 and the first heat dissipation member 31 is reduced. It is worth mentioning that the thickness of the reflective cup 45 needs to be as thin as possible to achieve the effect of improving the heat dissipation effect and reducing the cost.

Further, please refer to fig. 2, as an embodiment of the present invention, the lighting device further includes a press ring 6 connected to one end of the first heat dissipating member 31 far away from the second heat dissipating member 32, and the press ring 6 may be detachably connected to the first heat dissipating member 31 by a screw connection or the like. The inner wall of the pressing ring 6 is provided with a limiting protrusion 61 along the circumferential surface thereof, and the end surface of one end of the limiting protrusion 61 close to the first heat sink 31 is abutted against the end surface of one end of the reflection cup 45 far away from the lens 44, so that the reflection cup 45 is limited in the accommodating cavity 3111 of the first heat sink 31. In addition, 6 whole blacks that are of clamping ring, still is equipped with the dentate micro-structure that is used for anti-dazzle along its global on the inner wall of clamping ring 6, and the dentate micro-structure specifically is located one side that anti-reflection cup 45 was kept away from to spacing arch 61, can play the effect of anti-dazzle.

Specifically, according to the service power of the down lamp, suitable materials of the first heat dissipation member 31 and the pressing ring 6 are selected, and when the service power of the down lamp is high, in order to ensure good heat dissipation performance, the first heat dissipation member 31 and the pressing ring 6 are preferably made of metal materials, and specifically, but not limited to, die-cast aluminum is adopted; when the service power of the down lamp is small, the first heat dissipation member 31 and the pressing ring 6 are preferably made of common plastic materials, so that the manufacturing cost is reduced. Because the utility model discloses a down lamp mainly carries out the radiating through second radiating part 32, in order to guarantee the heat dispersion of preferred, the metal material is chooseed for use to second radiating part 32, specifically can but not be limited to for the crowded section bar of aluminium. Through the setting, make the utility model discloses a down lamp has the heat dispersion of preferred, thereby makes the utility model discloses a power consumption of down lamp can promote to more than 40W or 40W, and in addition, light source 42's temperature rise is less than 90 ℃, thereby can avoid the untimely problem of heat dissipation to appear.

Further, referring to fig. 2, as an embodiment of the present invention, the lighting device further includes a surface ring 5 connected to an end of the turntable 1 away from the first heat sink 31, and the surface ring 5 is provided with an elastic fixing member 51 for being mounted on a mounting surface such as a ceiling.

The above description is only an alternative embodiment of the present invention, and should not be construed as limiting the present invention, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a lighting lamp, its characterized in that, includes first radiating piece, locates the second radiating piece of first radiating piece one end, and locate light source subassembly in the first radiating piece, the light source subassembly includes the light source, locates the light source is kept away from the support of one side of second radiating piece, and locates the lens of one side of light source is kept away from to the support, the second radiating piece includes the central part, by the central part extends at least three trunk portion that forms all around, and by at least one branch portion that the trunk portion extends the formation outwards.

2. A lighting fixture as recited in claim 1, wherein said second heat dissipation element is dendritic or fishbone shaped.

3. The illumination device as claimed in claim 1, wherein at least three of the main portions are radially distributed around the central portion, and the main portions are extended toward opposite sides thereof to form at least one branch portion.

4. The illumination lamp as claimed in claim 1, wherein the trunk portion has a through hole formed at an end thereof adjacent to the central portion in a height direction thereof.

5. The lighting fixture of claim 1, wherein the leg portion has a plurality of ribs on opposite sides thereof, such that the leg portion has a wave-shaped side surface.

6. The lighting fixture of claim 1, wherein the distance between two adjacent branches is greater than or equal to 5 mm.

7. A lighting fixture as recited in claim 1, wherein said second heat dissipation element has a height in the range of 50mm to 70 mm.

8. A lighting fixture as recited in any one of claims 1-7, wherein said lighting fixture further comprises a turntable disposed at an end of said first heat dissipation element remote from said second heat dissipation element, and an adjustment element rotatably coupled to said turntable at an end thereof remote from said turntable, said adjustment element being coupled to said first heat dissipation element.

9. The lamp of claim 8, wherein the turntable has a hollow cavity, an end of the first heat sink remote from the second heat sink extends into the hollow cavity, and the turntable has an avoidance notch formed therein for avoiding interference with rotation of the first heat sink; the shape of one side of the second heat dissipation part corresponding to the avoidance notch is matched with the avoidance notch so as to avoid interference with rotation of the second heat dissipation part.

10. A lighting fixture as recited in any one of claims 1-7, wherein said lighting fixture further comprises an insulating spacer disposed within said first heat dissipation element and on a side of said light source remote from said bracket.

Images