CN111503546A

CN111503546A - Lamp fitting

Info

Publication number: CN111503546A
Application number: CN202010312944.8A
Authority: CN
Inventors: 周明杰; 詹权
Original assignee: Oceans King Lighting Science and Technology Co Ltd; Oceans King Dongguan Lighting Technology Co Ltd; Shenzhen Oceans King Lighting Engineering Co Ltd
Current assignee: Oceans King Lighting Science and Technology Co Ltd; Oceans King Dongguan Lighting Technology Co Ltd; Shenzhen Oceans King Lighting Engineering Co Ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-08-07

Abstract

The application is suitable for the technical field of heat dissipation, and provides a lamp which comprises a lamp source assembly, a driving structure and a heat radiator, wherein the heat radiator comprises a heat radiating substrate, a plurality of first heat radiating fins and a plurality of second heat radiating fins, the plurality of first heat radiating fins and the plurality of second heat radiating fins are distributed on the heat radiating substrate at intervals along the circumferential direction, and the first heat radiating fins and the second heat radiating fins are sequentially staggered along the circumferential direction; each first heat dissipation fin and each second heat dissipation fin extend from the edge of the heat dissipation substrate to the center of the heat dissipation substrate, and the length of each first heat dissipation fin is greater than that of each second heat dissipation fin along the radial direction of the heat dissipation substrate. The structure arrangement strengthens the convection effect of the radiator and the ambient air, improves the radiating effect of the lamp, has very simple integral structure, reduces the integral weight and volume of the lamp, and improves the use safety performance of the lamp.

Description

Lamp fitting

Technical Field

The invention belongs to the technical field of heat dissipation, and particularly relates to a lamp.

Background

The lamp is easy to heat in a long-time use process, so that the temperature of the lamp is increased to cause the burning of a light source, the service life of the lamp is influenced, and a radiator is required to be arranged for radiating. The radiator used on the existing lamp is generally applied to the lamp with low power, for the lamp with high power, such as the lamp with the power of more than 200W in an air film shop, the general radiator is difficult to radiate the lamp well, and in order to improve the radiating effect, the structure of the lamp radiator is complex, the weight and the volume are very large, so that the weight of the lamp is generally more than 4 KG.

The lamp of the air film shop is generally fixed in a suspension mode, the weight and the size of the lamp are very large, the falling risk of the lamp is increased, the size and the weight of the radiator are large, the structure of the radiator is complex, the maintenance cost of the lamp is increased, and the maintenance convenience of the lamp is reduced.

Disclosure of Invention

One of the purposes of the embodiment of the invention is as follows: the utility model provides a lamp, aims at solving prior art, the technical problem that the structure of lamp radiator is complicated, volume weight is big or the radiating effect is poor.

In order to solve the technical problem, the embodiment of the invention adopts the technical scheme that:

the lamp comprises a lamp source assembly, a driving structure electrically connected with the lamp source assembly, and a radiator arranged between the lamp source assembly and the driving structure, wherein the radiator comprises a radiating substrate, a plurality of first radiating fins and a plurality of second radiating fins, the plurality of first radiating fins and the plurality of second radiating fins are distributed on the radiating substrate at intervals along the circumferential direction, and the first radiating fins and the second radiating fins are sequentially staggered along the circumferential direction; each of the first heat dissipation fins and each of the second heat dissipation fins extend from the edge of the heat dissipation substrate to the center of the heat dissipation substrate, and the length of each of the first heat dissipation fins is greater than the length of each of the second heat dissipation fins along the radial direction of the heat dissipation substrate.

In one embodiment, the heat-dissipating substrate, the first heat-dissipating fins, and the second heat-dissipating fins are cold-forged from an aluminum alloy into an integrally formed structure.

In one embodiment, the first heat sink fins and the second heat sink fins curve from the edge of the heat sink substrate to the center of the heat sink substrate;

or the first radiating fins and the second radiating fins extend from the edge of the radiating substrate to the center of the radiating substrate in a straight line.

In one embodiment, a heat dissipation rib is disposed on one end of a portion of the first heat dissipation fins close to the heat dissipation substrate.

In one embodiment, a plurality of first heat dissipation holes are formed on the edge of the heat dissipation substrate, and the first heat dissipation holes are formed between the adjacent first heat dissipation fins and the adjacent second heat dissipation fins.

In one embodiment, the first heat dissipation fins and the second heat dissipation fins have the same height along the axial direction, and the driving structure and the first heat dissipation fins and the second heat dissipation fins form heat dissipation gaps at intervals respectively.

In one embodiment, the heat dissipation gap is 12mm or more.

In one embodiment, the first heat dissipation fins and/or the second heat dissipation fins are provided with connection posts, the connection posts are connected with connection brackets, and the driving structure is mounted on the connection brackets.

In one embodiment, the connecting bracket is Z-shaped, two opposite ends of the connecting bracket are respectively connected to the connecting column and the driving structure, and the connecting bracket is provided with a second heat dissipation hole.

In one embodiment, the driving structure includes a driving box and a driving assembly disposed in the driving box and electrically connected to the light source assembly, wherein a protrusion is formed at an edge of the driving box, and the protrusion is connected to the connecting bracket.

The lamp provided by the invention has the beneficial effects that: compared with the prior art, the first radiating fins and the second radiating fins are respectively arranged on the periphery of the radiating substrate, so that heat on the radiating substrate can be respectively conducted to the first radiating fins and the second radiating fins, the contact area of the heat and air is increased, and the radiating effect is enhanced; the first radiating fins extend from the edge of the radiating substrate to the center of the radiating substrate, and along the radial direction of the radiating substrate, the extension length of each first radiating fin is greater than that of each second radiating fin, so that the extension length of each first radiating fin is increased, on one hand, heat on the radiating substrate is conveniently and greatly conducted to the first radiating fins, and on the other hand, the mechanical strength of the first radiating fins is enhanced; the second radiating fins extend from the edge of the radiating substrate to the center of the radiating substrate, and the first radiating fins and the second radiating fins are staggered in sequence along the axial direction, so that poor heat radiating effect caused by too small radiating space between the first radiating fins and the second radiating fins is prevented; above structure setting has strengthened the convection current effect of radiator with ambient air to realize the heat dissipation sooner, improve the radiating effect, and radiator overall structure is very simple, when guaranteeing lamps and lanterns radiating effect promptly, has reduced weight and volume, has improved the security performance of using.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in 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 based on these drawings without inventive exercise.

Fig. 1 is a perspective structural view of a lamp provided in an embodiment of the present invention;

fig. 2 is a perspective structural view of a heat sink of a lamp according to an embodiment of the present invention;

fig. 3 is a top view of a heat sink of a lamp according to an embodiment of the invention;

FIG. 4 is an enlarged view of a portion of the heat sink shown in FIG. 3 at A;

fig. 5 is a perspective structural view of a connection bracket of a lamp according to an embodiment of the present invention;

fig. 6 is a perspective structural view of a driving structure of a lamp according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1-a lamp source assembly; 2-a radiator; 21-a heat-dissipating substrate; 211-a first heat dissipation hole; 212-a connecting structure; 22-first cooling fins; 221-heat dissipation ribs; 2211-a base; 2212-an extension; 222-a first heat dissipating section; 223-a second heat dissipation section; 23-second cooling fins; 24-connecting column; 25-a first heat dissipation area; 26-a second heat dissipation area; 27-a third heat dissipation area; 3-a drive structure; 31-a drive cartridge; 32-bumps; 321-a third connection hole; 4-connecting a bracket; 41-first section; 411-first connection hole; 42-a second segment; 421-second heat dissipation hole; 422-second connection hole; 43-connecting segment.

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 invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; 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.

In order to explain the technical solutions of the present application, the following detailed descriptions are made with reference to specific drawings and examples.

Referring to fig. 1, a lamp provided in an embodiment of the present invention includes a lamp source assembly 1, a driving structure 3, and a heat sink 2, wherein the lamp source assembly 1 is electrically connected to the driving structure 3 and can emit light to achieve an illumination function, and in order to improve illumination intensity, a lamp bead of the lamp source assembly 1 is set to be an L ED lamp bead, the lamp source assembly 1 is disposed on one side of the heat sink 2, and in a use process, heat of the lamp source assembly 1 can be conducted to the heat sink 2, and the heat sink 2 dissipates the heat to the atmosphere to achieve an overall heat dissipation function of the lamp, and the driving structure 3 is disposed on the other side of the heat sink 2.

Specifically, referring to fig. 2, the heat sink 2 includes a heat dissipation substrate 21, a plurality of first heat dissipation fins 22 and a plurality of second heat dissipation fins 23, the plurality of first heat dissipation fins 22 are circumferentially distributed on the heat dissipation substrate 21 at intervals, the plurality of second heat dissipation fins 23 are circumferentially distributed on the heat dissipation substrate 21 at intervals, when the lamp source assembly 1 works, heat of the lamp source assembly can be conducted to the heat dissipation substrate 21, a small portion of heat on the heat dissipation substrate 21 is directly dissipated, a large portion of heat is conducted to the first heat dissipation fins 22 and the second heat dissipation fins 23, and the first heat dissipation fins 22 and the second heat dissipation fins 23 can directly contact with outside air and respectively dissipate heat, so as to achieve heat dissipation work of the lamp.

Referring to fig. 3, each first heat sink fin 22 extends from the edge of the heat sink base plate 21 to the center of the heat sink base plate 21, and the length of each first heat sink fin 22 is greater than the length of each second heat sink fin 23 along the radial direction of the heat sink base plate 21. One end of the first heat dissipation fin 22 extends to the middle of the heat dissipation substrate 21, and the other end is disposed on the edge of the heat dissipation substrate 21, so that the heat at the edge and the middle of the heat dissipation substrate 21 can be conducted to the first heat dissipation fin 22 and dissipated, thereby preventing uneven heat dissipation of the lamp caused by over-high local heating of the heat dissipation substrate 21. One end of each first heat dissipation fin 22 is connected with each other to form a first heat dissipation area 25 in a surrounding manner, and both the heat at one end of each first heat dissipation fin 22 and the heat at the middle part of the heat dissipation substrate 21 where the first heat dissipation fins 22 are not arranged can contact and convect with the air in the first heat dissipation area 25, so that the heat can be dissipated.

Each second heat dissipation fin 23 extends from the edge of the heat dissipation substrate 21 to the center of the heat dissipation substrate 21, that is, the extending directions of the second heat dissipation fins 23 and the first heat dissipation fins 22 are the same, and each first heat dissipation fin 22 and each second heat dissipation fin 23 are sequentially staggered along the circumferential direction. It should be noted that, the first heat dissipation fins 22 and the second heat dissipation fins 23 both extend from the edge of the heat dissipation substrate 21 to the center of the heat dissipation substrate 21, where the direction extending from the edge of the heat dissipation substrate 21 to the center of the heat dissipation substrate 21 is set to be a first direction, that is, a radial direction of the heat dissipation substrate 21, and if the lengths of the first heat dissipation fins 22 and the second heat dissipation fins 23 along the first direction are the same, when the first direction is closer to the middle of the heat dissipation substrate 21, gaps between the first heat dissipation fins 22 and the second heat dissipation fins 23 are smaller, which is not favorable for the first heat dissipation fins 22 and the second heat dissipation fins 23 to contact with the outside air and dissipate heat. Therefore, in order to solve the technical problem, it is also noted that, in this embodiment, the length of the first radiator fins 22 is greater than the length of the second radiator fins 23 in the radial direction of the radiator base 21.

In detail, referring to fig. 3, the first heat dissipation fin 22 has a first heat dissipation section 222 and a second heat dissipation section 223 connected to each other, wherein the first heat dissipation section 222 extends from the edge of the heat dissipation substrate 21 to the center of the heat dissipation substrate 21, and the second heat dissipation section 223 extends from the first heat dissipation section 222 to the center of the heat dissipation substrate 21. The first heat dissipation section 222 and the second heat dissipation fins 23 have the same length in the first direction and are arranged oppositely, and second heat dissipation areas 26 are formed at intervals, so that heat dissipation of the first heat dissipation section 222 and the second heat dissipation fins 23 is facilitated, and interference of heat conduction between the first heat dissipation fins 22 and the second heat dissipation fins 23 is avoided; the second heat dissipation sections 223 of the first heat dissipation fins 22 on two sides of each second heat dissipation fin 23 are adjacent and opposite to each other, and the third heat dissipation areas 27 are formed at intervals, so that the heat dissipation space between two adjacent second heat dissipation sections 223 is increased, and the heat dissipation of two adjacent second heat dissipation sections 223 is facilitated. Therefore, the length of the first radiator fins 22 is greater than the length of the second radiator fins 23 to achieve the formation of the third heat dissipation area 27, i.e., to increase the heat dissipation space, facilitating the heat dissipation of the second heat dissipation section 223.

It should be further noted that the first heat dissipation fins 22 are uniformly spaced on the heat dissipation substrate 21, and the second heat dissipation fins 23 are uniformly spaced on the heat dissipation substrate 21, so that the spaces of the second heat dissipation areas 26 are the same, and the spaces of the third heat dissipation areas 27 are the same, so that heat can be dissipated more uniformly, and the lamp can be prevented from being damaged due to local overheating.

In the embodiment of the present invention, the first heat dissipation fins 22 and the second heat dissipation fins 23 are respectively disposed on the circumference of the heat dissipation substrate 21, so that the heat on the heat dissipation substrate 21 can be respectively conducted to the first heat dissipation fins and the second heat dissipation fins 23, the contact area between the heat and the air is increased, and the heat dissipation effect is enhanced; the first heat dissipation fins 22 extend from the edge of the heat dissipation substrate 21 to the center of the heat dissipation substrate 21, and along the radial direction of the heat dissipation substrate 21, the extension length of each first heat dissipation fin 22 is greater than the extension length of each second heat dissipation fin 23, so that the extension length of the first heat dissipation fins 22 is increased, on one hand, the heat on the heat dissipation substrate 21 is more conveniently conducted to the first heat dissipation fins 22, and on the other hand, the mechanical strength of the first heat dissipation fins 22 is enhanced; the edges of the second radiating fins 23 extend towards the center of the radiating substrate 21, and the first radiating fins 22 and the second radiating fins 23 are staggered in sequence along the axial direction, so that the problem that the heat radiating effect is poor due to the fact that the interval between the first radiating fins 22 and the second radiating fins 23 is too small is solved, each radiating space can realize the heat radiation of each section of the first radiating fins 22 and the second radiating fins 23, and the uniform heat radiation of the radiator 2 is realized; above structure setting has strengthened the convection current effect of radiator 2 with ambient air to realize the heat dissipation sooner, improve the radiating effect, and 2 overall structure of radiator are very simple, when guaranteeing lamps and lanterns radiating effect promptly, have reduced weight and volume, have improved the security performance of using.

Specifically, referring to fig. 1, the light source assembly is disposed on one side of the heat sink base plate 21, the first heat sink fins 22 and the second heat sink fins 23 are disposed on the other side of the heat sink base plate 21, and the driving structure 3 is disposed on one side of the first heat sink fins 22 and the second heat sink fins 23 away from the light source assembly. The heat of the light source assembly and the driving structure 3 can be conducted to the first heat dissipation fins 22 and the second heat dissipation fins 23 and dissipated.

The heat dissipation substrate 21 is provided in a circular shape, but may be provided in other shapes according to specific requirements, and is not limited herein.

In addition, in the solution to be protected in the present application, each first radiator fin 22 is configured to be the same, and each second radiator fin 23 is configured to be the same, however, according to the specific design and processing requirements, the length or structure of each first radiator fin 22 and each second radiator fin 23 may be adjusted accordingly. For example, referring to fig. 2 and fig. 3 together, the connecting structure 212 is disposed at the edge of the heat dissipating substrate 21, the connecting structure 212 can be used to mount a suspension rod structure for suspending the lamp, and the space occupied by the connecting structure 212 on the heat dissipating substrate 21 is the space after the first heat dissipating fins 22 and the second heat dissipating fins 23 are specifically adjusted.

In the actual use process, according to the design, the lamp with the power of 200W applied to the air film shop is set to be 3KG in weight, the overall height of the lamp is 105mm, the diameter of the lamp is 290mm, and when the lamp is used in an environment with the temperature of 30 ℃ for a long time, the temperature of the lamp source assembly 1 of the lamp is lower than 85 ℃, so that the lamp can still realize good heat dissipation on the basis of reducing the weight and the volume of the lamp.

In one embodiment, the heat sink base 21, the first heat sink fins 22 and the second heat sink fins 23 are formed by cold forging aluminum alloy to be connected to form an integral structure, i.e. the heat sink 2 is integrally formed as an integral structure. The heat dissipation substrate 21, the first heat dissipation fins 22, and the second heat dissipation fins 23 are formed by cold forging aluminum alloy, the heat dissipation effect can be enhanced by the aluminum alloy, and the overall mechanical strength of the heat sink 2 is enhanced by the cold forging process, and the heat sink is light in weight. In addition, the integral structure can facilitate heat conduction among the heat dissipation substrate 21, the first heat dissipation fins 22 and the second heat dissipation fins 23, thereby improving the heat dissipation efficiency.

Specifically, to improve the heat conduction efficiency, the entire heat sink 2 is formed by cold forging using Al 1070.

In one embodiment, referring to fig. 3, the first heat dissipation fins 22 and the second heat dissipation fins 23 extend from the edge of the heat dissipation substrate 21 to the center of the heat dissipation substrate 21 in a curved manner, that is, each of the first heat dissipation fins 22 and each of the second heat dissipation fins 23 extend in a curved manner, and the curved arrangement can extend the extension length of the first heat dissipation fins 22 and the second heat dissipation fins 23 on the heat dissipation substrate 21 relative to the straight extension, so that the contact area between the first heat dissipation fins 22 and the heat dissipation substrate 21, and the contact area between the second heat dissipation fins 23 and the heat dissipation substrate 21, and the contact area between the first heat dissipation fins 22 and the external air respectively can be increased, thereby increasing the heat dissipation effect.

In addition, the first heat dissipating fins 22 and the second heat dissipating fins 23 are disposed in a curved shape, which can enhance the mechanical strength of the first heat dissipating fins 22 and the second heat dissipating fins 23 for fixing the driving structure 3.

Specifically, the first radiator fins 22 and the second radiator fins 23 are both bent and extended in the clockwise direction, so that the first radiator fins 22 and the second radiator fins 23 are uniformly distributed. Of course, the first radiator fins 22 and the second radiator fins 23 may each extend in a curved manner in the counterclockwise direction.

Alternatively, in another embodiment, the first radiator fins 22 and the second radiator fins 23 are extended linearly from the edge of the radiator base 21 toward the center of the radiator base 21 for convenience of processing.

In one embodiment, referring to fig. 3, a heat dissipation rib 221 is disposed on one end of a portion of the first heat dissipation fins 22 close to the heat dissipation substrate 21, the heat dissipation rib 221 is disposed on one side of the first heat dissipation fins 22, the heat dissipation rib 221 is disposed on the second heat dissipation section 223 of the first heat dissipation fins 22 and is disposed in the third heat dissipation area 27, and the heat dissipation rib 221 is disposed to help transfer heat of the second heat dissipation section 223 of the first heat dissipation fins 22 to the third heat dissipation area 27, so as to facilitate heat dissipation work of the second heat dissipation section 223. The heat dissipation ribs 221 have the same length as the first heat dissipation fins 22 in the axial direction.

Specifically, referring to fig. 4, fig. 4 is a partially enlarged view of a portion a in fig. 3. The heat dissipation rib 221 includes a base portion 2211 and two extension portions 2212 disposed on the base portion 2211, the base portion 2211 is disposed on one side of the second heat dissipation section 223 of the first heat dissipation fin 22, the extension portions 2212 extend from the base portion 2211 to the third heat dissipation area 27, and the two extension portions 2212 are disposed at intervals. The extension 2212 can conduct the heat conducted from the second heat dissipation section 223 to the base 2211 to the third heat dissipation area 27, and the gap between the two extensions 2212 also facilitates the heat dissipation of the extension 2212, so that the efficient heat dissipation of the second heat dissipation section 223 can be realized.

In one embodiment, referring to fig. 3, a plurality of first heat dissipation holes 211 are formed on an edge of the heat dissipation substrate 21, the lamp source assembly 1 is disposed in a middle portion of one side of the heat dissipation substrate 21, the plurality of first heat dissipation holes 211 are formed on the edge of the heat dissipation substrate 21 and surround the periphery of the lamp source assembly 1, and the first heat dissipation holes 211 can enhance heat dissipation of the heat dissipation substrate 21 without interfering with the arrangement of the lamp source assembly 1.

Specifically, each first heat dissipation hole 211 is disposed between each adjacent first heat dissipation fin 22 and each second heat dissipation fin 23, that is, each first heat dissipation hole 211 communicates with the second heat dissipation area 26 formed between each first heat dissipation fin 22 and each second heat dissipation fin 23, so that each first heat dissipation hole 211 communicates with the second heat dissipation area 26 and the outside, and heat dissipated from the first heat dissipation fin 22 or the second heat dissipation fin 23 or the first heat dissipation area 25 or the third heat dissipation area 27 to the second heat dissipation area 26 is facilitated.

In one embodiment, at least two sets of first heat dissipation holes 211 are formed on the heat dissipation substrate 21, the first heat dissipation holes 211 are uniformly distributed among the sets of first heat dissipation holes 211, and the first heat dissipation holes 211 in each set of first heat dissipation holes 211 are uniformly distributed on the edge of the heat dissipation substrate 21 and located between the first heat dissipation fins 22 and the second heat dissipation fins 23.

Specifically, the first heat dissipation holes 211 are arranged in four groups, and the four groups of heat dissipation holes are uniformly distributed to enhance the heat dissipation effect.

In one embodiment, the heights of the first heat dissipating fins 22 and the second heat dissipating fins 23 along the axial direction are the same, that is, the ends of the first heat dissipating fins 22 and the second heat dissipating fins 23 facing away from the lamp source assembly 1 are flush, the driving structure 3 is disposed on the side of the first heat dissipating fins 22 facing away from the lamp source assembly 1, and the driving structure 3 and the first heat dissipating fins 22 and the second heat dissipating fins 23 are spaced to form heat dissipating gaps, respectively. The arrangement of the heat dissipation gap can make the heat on the first heat dissipation fins 22 and the second heat dissipation fins 23 directly convect with the outside air, thereby enhancing the heat dissipation effect, avoiding the influence of the heat on the driving structure 3 caused by the heat dissipated to the driving structure 3, and the heat on the driving structure 3 can also be dissipated to the heat dissipation gap. Therefore, the arrangement of the heat dissipation gap can enhance the heat dissipation of the first heat dissipation fins 22, the second heat dissipation fins 23 and the driving structure 3, and can protect the driving structure 3.

In one embodiment, the heat dissipation gap is more than 12mm, so that the heat dissipation of the first heat dissipation fins 22 and the second heat dissipation fins 23 can be sufficiently realized, and the driving structure 3 is prevented from being affected by the heat.

Specifically, if the heat dissipation gap is too large, the overall size of the lamp is easily increased, and if the heat dissipation gap is too small, the heat of the first heat dissipation fins 22 and the second heat dissipation fins 23 cannot be dissipated well, and the driving structure 3 is easily affected, thereby reducing the service life. Therefore, the heat dissipation gap can be set to 14-16 mm, more specifically 15 mm. Of course, the size of the heat dissipation gap can be adjusted according to the specific use requirement.

In one embodiment, referring to fig. 1 and fig. 3, the first heat dissipating fins 22 and/or the second heat dissipating fins 23 are provided with connecting posts 24, the connecting posts 24 are connected with the connecting brackets 4, the driving structure 3 is connected in the heat sink 2 through the connecting brackets 4, and a heat dissipating gap is formed between the driving structure 3 and the heat sink 2. The connection post 24 is used to connect the driving structure 3 through the connection bracket 4, and the connection post 24 can also facilitate the dissipation of heat on the first heat dissipating fins 22 or the second heat dissipating fins 23.

Specifically, referring to fig. 3, the height of the connecting posts 24 is the same as that of the first heat dissipating fins 22 along the axial direction, and four connecting posts 24 are provided, wherein two connecting posts 24 are respectively provided at one end of the two second heat dissipating fins 23 near the middle of the heat dissipating substrate 21, and the other two connecting posts 24 are provided at the connection between the first heat dissipating sections 222 and the second heat dissipating sections 223 of the two first heat dissipating fins 22.

Specifically, the number of the heat dissipation ribs 221 is four, the four connection columns 24 and the four heat dissipation ribs 221 are uniformly distributed along the axial direction, and the two heat dissipation ribs 221 and the two connection columns 24 are staggered from each other.

In one embodiment, referring to fig. 5, the connecting bracket 4 is "Z" shaped, and two opposite ends of the connecting bracket 4 are respectively connected to the connecting post 24 and the driving structure 3, that is, the driving structure 3 is mounted on the first heat dissipating fins 22 and the second heat dissipating fins 23 through the connecting bracket 4, so that heat dissipating gaps are formed between the driving structure 3 and the first heat dissipating fins 22.

Specifically, the connecting bracket 4 is provided with a second heat dissipation hole 421, which facilitates dissipation of heat conducted from the first heat dissipation fins 22 and/or the second heat dissipation fins 23 to the connecting bracket 4, and avoids influence on the use of the driving structure 3.

Specifically, the connecting bracket 4 includes a first section 41, a second section 42, and a connecting section 43, the first section 41 and the second section 42 being parallel to each other, the connecting section 43 being connected to the first section 41 and the second section 42. Be equipped with first connecting hole 411 on first section 41, first connecting hole 411 forms through the fastener and is connected with spliced pole 24, is equipped with second connecting hole 422 on the second section 42, and second connecting hole 422 is used for forming with drive structure 3 and is connected, and second louvre 421 distributes in second section 42, and linkage segment 43 sets up in first section 41 and second section 42 so that form the heat dissipation clearance between drive structure 3 and first heat radiation fins 22.

In an embodiment, referring to fig. 6, the driving structure 3 includes a driving box 31 and a driving component disposed in the driving box 31 and electrically connected to the light source component 1, a heat dissipation gap is formed between the driving box 31 and the first heat dissipation fins 22, protruding blocks 32 are formed on edges of two opposite sides of the driving box 31, a third connection hole 321 is formed on each protruding block 32, and the third connection hole 321 is connected to the second connection hole 422 through a fastening member, so that the protruding block 32 is connected to the connection bracket 4, thereby fixing the driving structure 3 on the heat sink 2.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A lamp is characterized by comprising a lamp source assembly, a driving structure electrically connected with the lamp source assembly, and a radiator arranged between the lamp source assembly and the driving structure, wherein the radiator comprises a radiating substrate, a plurality of first radiating fins and a plurality of second radiating fins, the plurality of first radiating fins and the plurality of second radiating fins are distributed on the radiating substrate at intervals along the circumferential direction, and the first radiating fins and the second radiating fins are sequentially staggered along the circumferential direction; each of the first heat dissipation fins and each of the second heat dissipation fins extend from the edge of the heat dissipation substrate to the center of the heat dissipation substrate, and the length of each of the first heat dissipation fins is greater than the length of each of the second heat dissipation fins along the radial direction of the heat dissipation substrate.

2. The lamp of claim 1, wherein the heat-dissipating substrate, the first heat-dissipating fins, and the second heat-dissipating fins are cold-forged from an aluminum alloy as an integrally formed structure.

3. The lamp of claim 1, wherein the first heat sink fins and the second heat sink fins extend curvilinearly from an edge of the heat sink substrate toward a center of the heat sink substrate;

4. The lamp of claim 1, wherein a portion of the first heat sink fins near one end of the heat sink substrate are provided with heat sink ribs.

5. The lamp of claim 1, wherein a plurality of first heat dissipation holes are formed on the edge of the heat dissipation substrate, and the first heat dissipation holes are formed between the adjacent first heat dissipation fins and the adjacent second heat dissipation fins.

6. The lamp of claim 1, wherein the first heat sink fins and the second heat sink fins have the same height along the axial direction, and the driving structure is spaced apart from the first heat sink fins and the second heat sink fins to form heat sink gaps, respectively.

7. The lamp of claim 6, wherein the heat dissipation gap is greater than 12 mm.

8. The lamp according to any one of claims 1 to 7, wherein a connection post is provided on the first heat dissipating fins and/or the second heat dissipating fins, a connection bracket is connected to the connection post, and the driving structure is mounted on the connection bracket.

9. The lamp according to claim 8, wherein the connecting bracket is Z-shaped, two opposite ends of the connecting bracket are respectively connected to the connecting post and the driving structure, and the connecting bracket is provided with a second heat dissipation hole.

10. The lamp as claimed in claim 8, wherein the driving structure comprises a driving box and a driving assembly disposed in the driving box and electrically connected to the lamp source assembly, wherein a protrusion is formed on an edge of the driving box, and the protrusion is connected to the connecting bracket.