CN212132092U

CN212132092U - Lamp set

Info

Publication number: CN212132092U
Application number: CN202020804856.5U
Authority: CN
Inventors: 张爱民; 谢奕
Original assignee: Aputure Imaging Industries Co Ltd
Current assignee: Shenzhen Aitushi Innovation Technology Co ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-12-11
Anticipated expiration: 2030-05-14

Abstract

The application provides a luminaire comprising: a housing; a light source disposed within the housing; the plurality of fins are arranged in the shell and are in thermal connection with the light source, and the plurality of fins are arranged at intervals; the airflow generating device is arranged in the shell and is positioned at one end of the fins far away from the light source, and the airflow generated by the airflow generating device flows towards the light source and is guided and diffused by the light source and the fins together. After the air flow generating device drives the air to enter the lamp, the air flow generated by the air flow generating device flows towards the light source and is guided and diffused by the light source and the plurality of fins together, and the air flow can be fully contacted with the lamp in the diffusion process, so that the efficiency of conducting heat energy to the air from heating devices such as the light source and the like is improved; the lamp provided by the embodiment is applied to the LED lamp, so that the temperature of the LED lamp is reduced, and the service life of a chip of the LED lamp is prolonged.

Description

Lamp set

Technical Field

The application relates to the technical field of film and television illumination, in particular to a lamp.

Background

With the continuous maturity and development of lighting technology, the LED lamp is widely applied, has the advantages of small volume, low heat productivity, energy conservation and the like, can normally work in various different working environments, and has wide application range. For a high-power LED lamp, the light attenuation of the LED lamp and the service life of the chip are directly affected by the overall heat dissipation performance of the lamp, so that the heat dissipation performance is an extremely important technical index for the LED lamp.

The light-emitting core of the existing high-power LED lamp is often an LED light-emitting unit welded on an aluminum or silicon substrate, the back of the substrate of the LED lamp is tightly attached to a shell for heat dissipation, but the surface area of the shell of the LED lamp is limited, so that the heat conduction capability of the LED lamp to air or other media is not strong, and further, the performance of the LED lamp in all aspects is limited.

SUMMERY OF THE UTILITY MODEL

The application aims to provide a lamp, and aims to solve the technical problem that the heat exchange efficiency between a traditional heat dissipation structure and air or other media is low.

The present application is thus implemented, a luminaire, comprising: a light fixture, comprising: a housing; a light source disposed within the housing; the fins are arranged in the shell and are in thermal connection with the light source, and the fins are arranged at intervals; and the airflow generating device is arranged in the shell and is positioned at one end of the plurality of fins far away from the light source, and the airflow generated by the airflow generating device flows towards the direction of the light source and is guided and diffused by the light source and the plurality of fins together.

In one embodiment of the present application, the light source includes a substrate and a plurality of light emitting units, which are arranged in an array and attached to the substrate; the airflow generating device is arranged opposite to the base plate, the shell is provided with a vent hole and an air outlet hole, the airflow generating device is arranged right opposite to the vent hole, and the air outlet hole is arranged around the shell; the lamp also comprises a plurality of air deflectors for guiding airflow, and the air deflectors are arranged around the vent holes; the air flow generated by the air flow generating device flows through the air vent, the space among the fins and the air outlet in sequence under the guidance of the air deflector.

In an embodiment of the present application, the air guiding plate includes a V-shaped air guiding portion and connecting portions disposed at two ends of the V-shaped air guiding portion, and the V-shaped air guiding portion is used for uniformly guiding an air flow entering the lamp from the air inlet to between the fins; the connecting part is connected with the V-shaped air guide part and the fins and used for forming shielding between the V-shaped air guide part and the fins so as to prevent air from directly flowing out of the lamp.

In an embodiment of the present application, the lamp further includes a first heat conducting plate, the fins and the air deflector are disposed to adhere to the first heat conducting plate, and the light source is disposed to adhere to a side of the first heat conducting plate opposite to the fins.

In one embodiment of the present application, the airflow generating device includes a fan, a motor connected to the fan and configured to drive the fan, and a frame configured to accommodate the fan and the motor, the shape of the air inlet corresponds to the shape of the frame, and a gap is formed between the frame and the air inlet.

In one embodiment of the present application, the fins are fastening fins, and the fins are fastened to each other and form a plurality of airflow channels communicating the ventilation holes and the air outlets.

In an embodiment of the present application, the lamp further includes a control plate attached to the second heat conducting plate, the lamp further includes a second heat conducting plate disposed opposite to the first heat conducting plate, the fins and the air guiding plate are disposed between the first heat conducting plate and the second heat conducting plate, and an air inlet is disposed at a position of the second heat conducting plate opposite to the air vent.

In an embodiment of the present application, the first heat-conducting plate is provided with a first mounting hole for mounting the lamp, the first mounting hole is disposed at an edge of the first heat-conducting plate, the first mounting hole is spaced from the fins, and the first mounting hole is spaced from the air outlet.

In one embodiment of the present application, a heat conducting pad or a heat conducting glue is disposed between the control board and the second heat conducting plate; and a heat conducting pad or heat conducting glue is arranged between the light source and the first heat conducting plate.

In one embodiment of the present application, the airflow generating device is connected to the housing, a connecting column is disposed at a position of the housing opposite to the airflow generating device, the connecting column is disposed inside the housing, and the airflow generating device is connected to the connecting column.

The lamp at least has the following beneficial technical effects:

after the air flow generating device drives the air to enter the lamp, the air flow generated by the air flow generating device flows towards the light source and is guided and diffused by the light source and the plurality of fins together, and the air flow can be fully contacted with the lamp in the diffusion process, so that the efficiency of conducting heat energy to the air from heating devices such as the light source and the like is improved; the lamp provided by the embodiment is applied to the LED lamp, so that the temperature of the LED lamp is reduced, and the service life of a chip of the LED lamp is prolonged.

Drawings

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

Fig. 1 is a schematic structural diagram of a lamp provided in an embodiment of the present application;

FIG. 2 is an exploded schematic view of the lamp shown in FIG. 1;

FIG. 3 is an enlarged schematic view at A in FIG. 1;

FIG. 4 is an enlarged schematic view at B in FIG. 2;

FIG. 5 is an enlarged schematic view at C in FIG. 2;

fig. 6 is a schematic structural diagram of a lamp provided in an embodiment of the present application;

fig. 7 is an exploded view of the lamp shown in fig. 6.

Reference numerals referred to in the above figures are detailed below:

11-a first thermally conductive plate; 111-a first mounting hole; 12-a second thermally conductive plate; 121-air inlet; 13-fins; 131-a first bend; 132-a second bend; 133-a heat sink; 14-a wind deflector; 141-V-shaped wind guide part; 142-a connecting portion; 15-a gas flow generating device; 151-fan blades; 152-a motor; 153-a frame; 2-a control panel; 3-a light source; 31-a substrate; 311-second mounting hole; 32-a light emitting unit; 4-a shell; 41-air outlet holes; 42-a vent hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

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", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. 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 solutions of the present application, the following detailed descriptions are made with reference to specific drawings and examples.

Referring to fig. 1, fig. 2 and fig. 7, the present embodiment provides a lamp, including: a housing 4; a light source 3 disposed within the housing 4; a plurality of fins 13 arranged in the housing 4 and thermally connected to the light source 3, the plurality of fins 13 being arranged with a certain distance therebetween; and the airflow generating device 15 is arranged in the shell 4 and is positioned at one end of the plurality of fins 13 far away from the light source 3, and the airflow generated by the airflow generating device 15 flows towards the light source 3 and is guided and diffused by the light source 3 and the plurality of fins 13 together.

The Light source 3 may be an LED (Light Emitting Diode) Light source 3, which serves as a main heating element of the lamp, and the plurality of fins 13 arranged at intervals are in contact with the Light source 3, of course, the plurality of fins 13 may also be in contact with other heating elements such as a PCB (Printed Circuit Board) control Board 2 arranged in the housing 4; the heat generated by the heating element in the working process is conducted to the fins 13, and the fins 13 are heated; the air flows through the fins 13 under the action of the airflow generating device 15, in the process, the air exchanges heat with the fins 13, the heat of the heating element such as the light source 3 is conducted into the air through the fins 13, the fins 13 cool and further absorb more heat from the heating element, the temperature of the heating element is reduced, and the functions of heat dissipation and cooling are realized.

The lamp provided by the embodiment can at least achieve the following beneficial technical effects:

after the air flow generating device drives air to enter the lamp, the air flow generated by the air flow generating device 15 flows towards the light source 3 and is guided and diffused by the light source 3 and the plurality of fins 13 together, and the air flow can be fully contacted with the lamp in the diffusion process, so that the efficiency of conducting heat energy to the air from heating devices such as the light source 3 and the like is improved; the lamp provided by the embodiment is applied to the LED lamp, so that the temperature of the LED lamp is reduced, and the service life of a chip of the LED lamp is prolonged.

Referring to fig. 1, 2 and 7, in an embodiment of the present application, the light source 3 includes a substrate 31 and a plurality of light emitting units 32, and the plurality of light emitting units 32 form an array and are disposed attached to the substrate 31; the airflow generating device 15 is arranged opposite to the substrate 31, the shell 4 is provided with a vent hole 42 and an air outlet hole 41, the airflow generating device 15 is arranged opposite to the vent hole 42, and the air outlet hole 41 is arranged around the shell 4; the lamp further comprises a plurality of air deflectors 14 for guiding air flow, and the air deflectors 14 are arranged around the vent holes 42; the airflow generated by the airflow generating device 15 flows through the ventilation hole 42, the space between the fins 13 and the air outlet 41 in sequence under the guidance of the air deflector 14.

The air deflector 14 is arranged around the vent hole, and the air flow generated by the air flow generating device 15 enters between the fins 13 under the guidance of the air deflector 14 and is simultaneously contacted with the light-emitting unit and the fins 13, so that the circulation efficiency of the air is improved, the hot air vortex is prevented from staying in the lamp, and the efficiency of heat flowing to the air from the lamp is further improved.

In an embodiment of the present application, the air deflector 14 includes a V-shaped air guiding portion 141, and connecting portions 142 disposed at two ends of the V-shaped air guiding portion 141, wherein the V-shaped air guiding portion 141 is used for uniformly guiding the air flow entering the lamp from the air inlet 121 to between the fins 13; the connecting portion 142 connects the V-shaped air guiding portion 141 and the fin 13, and the connecting portion 142 is used for forming a shield between the V-shaped air guiding portion 141 and the fin 13 to prevent air from directly flowing out of the lamp.

In an embodiment of the present application, the luminaire further includes a first heat conducting plate 11 and a second heat conducting plate 12 disposed opposite to each other, the fins 13 and the air deflectors 14 are disposed between the first heat conducting plate 11 and the second heat conducting plate 12, the light source 3 is disposed on a side of the first heat conducting plate 11 facing away from the fins 13, and the air inlets 121 are disposed at positions of the second heat conducting plate 12 opposite to the air vents.

In addition to the light source 3, a heating element such as the PCB control board 2 may be attached to the first heat conduction plate 11 and the second heat conduction plate 12, heat generated by the heating element during operation is conducted to the fins 13 by heat conduction of the first heat conduction plate 11 and the second heat conduction plate 12, and the first heat conduction plate 11, the second heat conduction plate 12 and the fins 13 are heated together; after passing through the air inlet 121, the air is guided to the space between the first heat conducting plate 11, the second heat conducting plate 12 and the fins 13 under the action of the air deflector 14 and is spread along the space between the two adjacent fins 13, in the process, the air exchanges heat with the first heat conducting plate 11, the second heat conducting plate 12 and the fins 13, the heat energy of the fins 13 of the first heat conducting plate 11 and the second heat conducting plate 12 is conducted to the air, the first heat conducting plate 11, the second heat conducting plate 12 and the fins 13 are cooled and further absorb more heat from the heating element, the temperature of the heating element is reduced, and the functions of heat dissipation and cooling are realized.

As a preferable solution of the present embodiment, a heat conducting pad or a heat conducting glue is disposed between the control plate 2 and the second heat conducting plate 12; a heat conductive pad or paste is disposed between the light source 3 and the first heat conductive plate 11 to further improve the efficiency of heat conduction from the control board 2 and the light source 3 to the fins 13.

Referring to fig. 1 and 2, in an embodiment of the present application, the second heat-conducting plate 12 is rectangular, and a central portion of the second heat-conducting plate 12 is opened to form an air inlet 121; a plurality of fins 13 are disposed at both ends of the second heat-conducting plate 12 in the length direction, and each fin 13 extends along the length direction of the second heat-conducting plate 12; the lamp is provided with two air deflectors 14, and the two air deflectors 14 are respectively arranged on two sides of the air inlet 121 along two short-edge directions of the second heat-conducting plate 12. Thus, the fins 13 can contact the first heat-conducting plate 11 and the second heat-conducting plate 12 as large as possible, thereby improving heat dissipation efficiency; the air deflectors 14 are arranged between the two groups of fins 13, and the air inlets 121 are arranged between the two air deflectors 14, so that the air deflectors 14 can uniformly guide airflow to the interior of each radiator, and the radiating efficiency can be improved while the radiating uniformity is improved.

Referring to fig. 1 and 2, in an embodiment of the present application, the fins 13 are snap-fit fins 13, the number of the fins 13 is multiple, and each fin 13 is disposed along a long side of the rectangular second heat-conducting plate 12. The fins of the buckling type fins 13 are connected through buckling structures (not shown in the figure), so that the processing and the manufacturing are simple, the fin length and the fin number of the fins 13 can be flexibly changed according to actual needs, and the design and the manufacturing cost of the fins 13 can be favorably reduced.

Referring to fig. 5, as a specific solution of the present embodiment, the fastening type fin 13 includes a heat dissipating portion 133, and a first bending portion 131 and a second bending portion 132 connected to two ends of the heat dissipating portion 133, the first bending portion 131 is parallel to the second bending portion 132, the first bending portion 131 and the second bending portion 132 both form an included angle with the heat dissipating portion 133, the fastening structure is disposed on the first bending portion 131 and/or the second bending portion 132, and the plurality of fins 13 are fastened and spliced together to form a plurality of heat dissipating portions; further, the first bending part 131 is connected to the first heat conducting plate 11, and the second bending part 132 is connected to the second heat conducting plate 12, so as to transfer heat from the first heat conducting plate 11 and the second heat conducting plate 12 to the fins 13, and further to the air through the air flow.

More preferably, a heat conduction pad or a heat conduction glue is disposed between the first bending part 131 and the first heat conduction plate 11 to further enhance the heat conduction efficiency between the first heat conduction plate 11 and the fins 13; a thermal pad or a thermal paste is disposed between the second bending portion 132 and the second heat-conducting plate 12 to further enhance the thermal conduction efficiency between the second heat-conducting plate 12 and the fins 13.

Referring to fig. 1 and 2, in an embodiment of the present application, the first heat-conducting plate 11 is provided with a first mounting hole 111 for mounting a lamp, the first mounting hole 111 is disposed at an edge of the first heat-conducting plate 11, and the first mounting hole 111 and the fin 13 are disposed at an interval. Wherein the inner periphery of the shell 4 is provided with a protrusion, the protrusion is provided with a blind hole corresponding to the first mounting hole 111, and the first mounting hole 111 and the blind hole are fixedly connected through a fastener (such as a screw or a bolt) so as to fix the first heat conducting plate 11 in the shell 4. Therefore, the blockage of the fastening piece for fixing and assembling on the air flow channel can be effectively reduced, the smoothness of the air flow can be further ensured, the slow flowing of air in part of the radiator is avoided, and the slow heat dissipation or uneven heat dissipation of the lamp is prevented.

Referring to fig. 1 and fig. 2, as a specific solution of this embodiment, the first mounting hole 111 is disposed around the edge of the first heat conducting plate 11, so as to ensure that the lamp is uniformly stressed after being mounted in place, and prevent the lamp from structural fatigue and even damage caused by thermal expansion and cold contraction; more preferably, a gap of at least 8mm is left between the first mounting hole 111 and the fin 13 to ensure that the air path inside each heat sink is unobstructed, and noise emitted by the airflow generating device 15 of the lamp can be effectively reduced.

As a preferable mode of the embodiment, the substrate 31 is provided with a second mounting hole 311 (not shown in the figure) at a position corresponding to the first mounting hole 111, and the connecting member can simultaneously pass through the first mounting hole 111 and the second mounting hole 311 opposite to the first mounting hole 111 to mount the first heat-conducting plate 11 and the light source 3 inside the housing 4.

Referring to fig. 1 and 3, in one embodiment of the present application, the airflow generating device 15 is used to generate airflow into the vent 42. Further, in an embodiment of the present application, the airflow generating device 15 includes a fan 151, a motor 152 connected to the fan 151 for driving the fan 151, and a frame 153 for accommodating the fan 151 and the motor 152, the shape of the ventilation hole 42 corresponds to the shape of the frame 153, and a gap is formed between the frame 153 and the ventilation hole 42. The gap between the frame 153 and the ventilation holes 42 can reduce the influence of the vibration of the airflow generating device 15 on the lamp, and can also help to reduce the noise generated by the lamp during operation.

Referring to fig. 1 and fig. 3, as a specific solution of the present embodiment, a frame 153 of the airflow generating device 15 is partially embedded into the air inlet 121 to reduce the thickness of the whole lamp, so as to reduce the volume of the lamp; in the case that the air inlet 121 is disposed at the middle position of the second heat conduction plate 12, the frame 153 is partially embedded into the air inlet 121, so that the overall thickness of the lamp can be reduced.

Referring to fig. 6 and 7, in an embodiment of the present application, the luminaire further includes a control board 2 and a light source 3 attached to the first heat-conducting plate 11 or the second heat-conducting plate 12, and a housing 4 for mounting the luminaire. A circuit for controlling the light emitting unit to emit light is printed on the control board 2, and the light emitting unit on the light source 3 emits light and projects the light into a space under the control of the control board 2 to form a lighting effect; the control panel 2 and the light source 3 are used as main heating sources of the lamp and are respectively attached to the first heat conduction plate 11 or the second heat conduction plate 12, so that the heat dissipation efficiency of the lamp is improved; the lamp is connected to the housing 4 through the first mounting hole 111, and the housing 4 forms a structural protection for the lamp, the light source 3 and the control panel 2.

Referring to fig. 6 and 7, in an embodiment of the present application, the control plate 2 is disposed to be attached to the second heat conduction plate 12, and a heat conduction pad or a heat conduction glue is disposed between the control plate 2 and the second heat conduction plate 12 to enhance the heat conduction efficiency between the control plate 2 and the second heat conduction plate 12; the first heat-conducting plate 11 setting of light source 3 laminating, and be provided with heat conduction pad or heat conduction glue between light source 3 and the first heat-conducting plate 11 to the heat conduction efficiency between reinforcing light source 3 and the first heat-conducting plate 11.

To the situation that the air inlet 121 is arranged at the central position of the second heat conducting plate 12, the light source 3 is attached to the first heat conducting plate 11, and the control plate 2 is attached to the second heat conducting plate 12, so that the appearance of the light source 3 is neater and more attractive, and the uniformity of the illumination brightness of the lamp can be improved.

As a preferable scheme of this embodiment, the control board 2 is provided with a thermal via. The heating element on control panel 2 often sets up in one side of control panel 2 back to second heat-conducting plate 12, offers the heat via hole so that heating element can pass through heat via hole and second heat-conducting plate 12, heat-conducting pad or heat-conducting glue lug connection to improve the heat-conduction efficiency between control panel 2 and the second heat-conducting plate 12.

Referring to fig. 6 and 7, in an embodiment of the present application, an air outlet 41 is disposed at a position of the housing 4 opposite to the inside of the heat sink, and the air outlet 41 is spaced apart from the first mounting hole 111. The air outlet 41 and the first mounting hole 111 are arranged at intervals, so that smoothness of an air path can be guaranteed, slow air flow in a part of the radiator is avoided, and slow heat dissipation or uneven heat dissipation of the lamp is prevented.

In one embodiment of the present application, the airflow generating device 15 is connected to the housing 4, and a vent 42 is disposed at a position of the housing 4 opposite to the airflow generating device 15. Due to the arrangement, the shell 4 can support the airflow generating device 15, the airflow generating device 15 can be partially embedded into the lamp while the lamp is not connected, and the space volume occupied by the lamp is reduced; in the case that the air inlet 121 is disposed at the middle position of the second heat conduction plate 12, the air flow generating device 15 is partially embedded in the air inlet 121, so that the overall thickness of the lamp can be reduced.

As a specific solution of this embodiment, a connection column (not shown in the figure) is disposed at a position opposite to the airflow generating device 15 of the housing 4, the connection column is disposed at a side of the housing 4 facing the lamp, and the airflow generating device 15 is mounted on the connection column through a connection piece. Preferably, a clamping table is further arranged at a position, facing the airflow generating device 15, of the housing 4, and a distance greater than or equal to 3mm exists between the airflow generating device 15 and the body of the housing 4, that is, the height of the clamping table is greater than or equal to 3mm, so that noise generated in the working process of the lamp can be reduced.

In an embodiment of the present application, the housing 4 further includes a protective case (not shown in the figure) that is fastened to the light source 3 and faces one side of the light emitting direction of the lamp, so as to protect the light source from scratches caused by external force, and an air outlet 41 is also formed around the edge of the protective case, so as to further improve the heat dissipation performance of the lamp.

In an embodiment of the present application, the lamp may be used in different scenes such as photography, photographing, and the like in the fields of movie, short video, or stage.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A light fixture, comprising:

a housing (4);

a light source (3) disposed within the housing (4);

a plurality of fins (13) arranged in the housing (4) and thermally connected to the light source (3), the plurality of fins (13) being arranged with a certain distance therebetween;

and the airflow generating device (15) is arranged in the shell (4) and is positioned at one end of the plurality of fins (13) far away from the light source (3), and the airflow generated by the airflow generating device (15) flows towards the direction of the light source (3) and is guided together with the plurality of fins (13) through the light source (3) to be diffused.

2. A lamp as claimed in claim 1, characterized in that said housing (4) is provided with a ventilation hole (42) and an air outlet hole (41), said air flow generating device (15) is disposed opposite to said ventilation hole (42), and said air outlet hole (41) is disposed around said housing (4); the lamp also comprises a plurality of air deflectors (14) for guiding airflow, and the air deflectors (14) are arranged around the vent holes (42); the air flow generated by the air flow generating device (15) flows through the air vent (42), the air deflector (14), the space among the fins (13) and the air outlet (41) in sequence under the guidance of the air deflector (14).

3. A lamp as claimed in claim 2, characterized in that said air deflector (14) comprises a V-shaped air guiding portion (141), and connecting portions (142) disposed at both ends of said V-shaped air guiding portion (141), said V-shaped air guiding portion (141) being adapted to uniformly guide the air flow entering the lamp from said ventilation hole (42) to between said fins (13); the connecting part (142) is connected with the V-shaped air guide part (141) and the fin (13), and the connecting part (142) is used for forming shielding between the V-shaped air guide part (141) and the fin (13) so as to prevent air from directly flowing out of the lamp.

4. A lamp as claimed in claim 3, characterized in that it further comprises a first heat-conducting plate (11), the fins (13) and the deflector (14) being arranged in abutment with the first heat-conducting plate (11), the light source (3) being arranged in abutment with a side of the first heat-conducting plate (11) facing away from the fins (13).

5. A lamp as claimed in claim 4, characterized in that it further comprises a second heat-conducting plate (12) arranged opposite to said first heat-conducting plate (11), and a control plate (2) arranged in abutment with said second heat-conducting plate (12), said fins (13) and said deflector (14) being arranged between said first heat-conducting plate (11) and said second heat-conducting plate (12), said second heat-conducting plate (12) being provided with air inlets (121) in positions opposite to said ventilation holes (42).

6. A lamp as claimed in claim 5, characterized in that between said control plate (2) and said second heat-conducting plate (12) there is provided a heat-conducting mat or glue; a heat conducting pad or heat conducting glue is arranged between the light source (3) and the first heat conducting plate (11).

7. A lamp as claimed in claim 4, wherein the first heat-conducting plate (11) is provided with a first mounting hole (111) for mounting the lamp, the first mounting hole (111) is disposed at an edge of the first heat-conducting plate (11), the first mounting hole (111) and the fin (13) are disposed at an interval, and the first mounting hole (111) and the air outlet (41) are disposed at an interval.

8. A luminaire as claimed in claim 2, characterized in that the air flow generating means (15) comprises a fan blade (151), a motor (152) connected to the fan blade (151) for driving the fan blade (151), and a frame (153) for accommodating the fan blade (151) and the motor (152), the shape of the ventilation hole (42) corresponds to the outer shape of the frame (153), and a gap is provided between the frame (153) and the ventilation hole (42).

9. The lamp of claim 2, wherein the fins (13) are snap-fit fins (13), and the fins (13) are snap-fit with each other to form a plurality of airflow channels connecting the ventilation holes (42) and the air outlet holes (41).

10. A luminaire as claimed in claim 1, characterized in that the airflow generating means (15) is connected to the housing (4), and that the housing (4) is provided with a connecting column at a position opposite to the airflow generating means (15), which connecting column is arranged inside the housing (4), and that the airflow generating means (15) is connected to the connecting column.