Lamp

Abstract

The utility model relates to a lamp which comprises a shell, a first heat dissipation area and a second heat dissipation area which are arranged adjacently, a plurality of heat dissipation through holes are formed in the first heat dissipation area, and a hollow heat dissipation notch is formed in the second heat dissipation area. The light source plate is arranged in the shell, and an LED chip is arranged on the light source plate; the heat dissipation piece is located in the shell and arranged at the heat dissipation notch; and the light source driving plate is arranged on the heat dissipation piece in an attached mode, and the light source driving plate is electrically connected with the light source plate so as to be used for driving the LED chips on the light source plate to emit light. The corresponding heat dissipation space and heat dissipation structure, namely the heat dissipation piece, are specially designed in the lamp, and the heat dissipation piece is placed at the heat dissipation notch, so that heat dissipation is specially conducted on the light source driving plate, the light source driving plate is better protected, and the temperature of the light source driving plate is prevented from being too high.

Description

TECHNICAL FIELD

[0001] The utility model relates to lighting lamps and lanterns technical field especially relates to a lamp. BACKGROUND

[0002] In the field of film and television, advertisement and video production, lighting plays a vital role in shaping the scene atmosphere and highlighting the features of the shooting object. In the actual shooting process, as the main lighting equipment, the lamp often needs to be turned on for a long time to meet the continuity requirement of shooting.

[0003] Long-time shooting will cause the lamp to generate a large amount of heat. At present, when considering the heat dissipation design of the interior of the lamp, the heat dissipation of the light source board is usually considered, and enough heat dissipation space is designed for it. However, there is a lack of corresponding space design for the heat dissipation of the circuit board used to drive the light source board in the interior of the lamp, which will have a very adverse effect on the electronic components on the circuit board used to drive the light source board. For example, high temperature may cause the capacitor electrolyte to dry up, the resistance value to change, and the performance of semiconductor devices to deteriorate, thereby greatly shortening the service life of the internal components, increasing the maintenance frequency and replacement cost of the lamp, reducing the efficiency of the shooting work, and existing room for improvement. SUMMARY

[0004] In order to overcome at least one of the defects of the prior art described above, according to one aspect of the present application, a lamp is provided, comprising:

[0005] A shell having a first heat dissipation area and a second heat dissipation area arranged adjacent to each other, a plurality of heat dissipation through holes in the first heat dissipation area, and a hollow heat dissipation gap formed in the second heat dissipation area;

[0006] A light source board arranged in the shell, the light source board being provided with LED chips;

[0007] A heat dissipation member located in the shell and placed at the heat dissipation gap;

[0008] A light source driving board arranged on the heat dissipation member, the light source driving board being electrically connected to the light source board for driving the LED chips on the light source board to emit light.

[0009] In an embodiment of the present application, a plurality of blocking strips are arranged at intervals in the first heat dissipation area to form a plurality of heat dissipation through holes arranged at intervals.

[0010] The heat dissipation member comprises a plurality of heat dissipation fins arranged at intervals, and the plurality of heat dissipation fins and the plurality of blocking strips are arranged at intervals in the same direction.

[0011] In an embodiment of the present application, the end surface of the heat dissipation member is flush with or lower than the heat dissipation gap.

[0012] In an embodiment of the present application, the first heat dissipation region is arranged obliquely, and the first heat dissipation region close to the rear end of the heat dissipation member is lower than the first heat dissipation region away from the front end of the heat dissipation member; the second heat dissipation region is arranged obliquely, and the second heat dissipation region close to the front end of the heat dissipation member is lower than the second heat dissipation region away from the rear end of the heat dissipation member, so as to form a junction region between the first heat dissipation region and the second heat dissipation region, and the heat dissipation member is arranged at the junction region.

[0013] In an embodiment of the present application, the end surface of the heat dissipation member is flush with or lower than the horizontal plane where the junction region is located.

[0014] In an embodiment of the present application, the oblique angles of the first heat dissipation region and the second heat dissipation region are α and β respectively, and α < β.

[0015] In an embodiment of the present application, the heat dissipation member comprises a plurality of heat dissipation fins arranged at intervals and a first heat dissipation plate and a second heat dissipation plate arranged on opposite sides of the plurality of heat dissipation fins.

[0016] The first heat dissipation plate is arranged in contact with the light source driving board, and the second heat dissipation plate is used for dissipating heat from the light source board.

[0017] In an embodiment of the present application, a board base for assembling the light source board and a heat pipe connected with the board base are further included, the board base is arranged in contact with a plurality of heat dissipation fins arranged at intervals, the heat dissipation fins are arranged on the same side as the heat dissipation through holes and arranged in contact with the heat pipe.

[0018] In an embodiment of the present application, the heat dissipation member is arranged in contact with the plurality of heat dissipation fins.

[0019] In an embodiment of the present application, a fan arranged in the shell is further included, the fan is arranged on the side of the heat dissipation fins away from the heat dissipation through holes, and the blowing range of the fan covers the first heat dissipation region and the second heat dissipation region.

[0020] In summary, the lamp provided by the present application has the following technical effects:

[0021] The present application specially designs corresponding heat dissipation space and heat dissipation structure, i.e. heat dissipation member, and places the heat dissipation member at the heat dissipation gap, so as to specially dissipate heat from the light source driving board, so as to better protect the light source driving board and prevent the temperature of the light source driving board from being too high. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 FIG. 1 is a structural schematic view of the lamp of the embodiment of the present application;

[0023] Figure 2 FIG. 2 is a top view of the lamp of the embodiment of the present application;

[0024] Figure 3 FIG. 3 is a sectional view of the lamp of the embodiment of the present application;Figure 2 a sectional view along A-A in FIG.

[0025] Figure 4 it is internal structure schematic view of the lamp of the embodiment of the utility model;

[0026] The drawings: 1 - shell, 101 - first radiating area, 102 - second radiating area, 11 - radiating through hole, 12 - radiating gap, 13 - baffle, 2 - radiating piece, 21 - radiating fin, 22 - first radiating plate, 23 - second radiating plate, 3 - light source driving board, 4 - light source board, 5 - board pedestal, 6 - heat pipe, 7 - radiating fin, 8 - fan. DETAILED DESCRIPTION

[0027] In order to better understand and implement, the technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model.

[0028] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the utility model.

[0030] The embodiment of the utility model discloses a kind of lamps.

[0031] In order to better understand the scheme of the present lamp, first describe light source board and light source driving board, the light source board mentioned can be specifically composed of light emitting element, in common lamp, light emitting element is mostly LED (light emitting diode), these LEDs are usually arranged in the form of array on circuit board to form light source board.And light source driving board is the circuit board for controlling and driving light source board, its main task is to convert the input commercial power (generally alternating current) into direct current suitable for light emitting element (such as LED) in light source board, and accurately control current, voltage and the like parameters.

[0032] The following will be described in combination with the drawings Figures 1-4 The technical scheme of the present lamp is specifically described.

[0033] Specifically, the lamp includes a housing 1, the housing 1 has a first heat dissipation area 101 and a second heat dissipation area 102 arranged adjacently. In the illustrated embodiment, in order to better understand the orientation, the lamp introduces a front-rear direction, that is, the lamp has a front side and a rear side, and the first heat dissipation area 101 is arranged on the front side of the lamp, and the second heat dissipation area 102 is arranged on the rear side of the lamp. In addition, the first heat dissipation area 101 has a plurality of heat dissipation through holes 11, and the second heat dissipation area 102 has a hollow heat dissipation gap 12.

[0034] The lamp further includes a light source plate 4 arranged in the housing 1, and the light source plate 4 is provided with LED chips. In the illustrated embodiment, the light source plate 4 can be arranged on the same side as the first heat dissipation area 101, that is, the light source plate 4 is arranged on the front side of the lamp, and the heat dissipation through holes 11 of the first heat dissipation area 101 can be used to dissipate heat from the light source plate 4.

[0035] The lamp further includes a heat dissipation member 2 arranged in the housing 1 at the heat dissipation gap 12 and a light source driving plate 3 arranged on the heat dissipation member 2. The light source driving plate 3 is electrically connected to the light source plate 4 to drive the LED chips on the light source plate 4 to emit light. In the illustrated embodiment, the heat dissipation member 2 and the light source driving plate 3 can be arranged on the same side as the second heat dissipation area 102, that is, the heat dissipation member 2 and the light source driving plate 3 are arranged on the rear side of the lamp, and the heat dissipation gap 12 of the second heat dissipation area 102 can be used to dissipate heat from the light source driving plate 3.

[0036] The specific heat dissipation principle of the lamp is as follows:

[0037] During the operation of the lamp, the light source driving plate 3 generates heat. Therefore, in order to improve the heat dissipation capacity of the light source driving plate 3, the light source driving plate 3 is arranged on the heat dissipation member 2, and the heat dissipation member 2 is arranged in the heat dissipation gap 12 of the housing 1. Heat is conducted from the light source driving plate 3 to the heat dissipation member 2. Since the heat dissipation member 2 is generally made of a material with good heat conduction performance (such as aluminum alloy), it can quickly spread the heat. Therefore, the heat can be conducted to the heat dissipation gap 12 of the housing 1 through the heat dissipation member 2, and then dissipated to the surrounding air, thereby effectively reducing the temperature inside the lamp and ensuring that the components of the lamp work in a suitable temperature environment.

[0038] Therefore, this application specifically designs a corresponding heat dissipation space and structure inside the lamp, namely the heat sink 2, and places the heat sink 2 at the heat dissipation notch 12 to specifically dissipate heat from the light source driver board 3, so as to better protect the light source driver board 3 and prevent the temperature of the light source driver board 3 from becoming too high. In addition, the overall structural layout of this lamp is reasonable, with the first heat dissipation area 101 and the second heat dissipation area 102 arranged adjacently, making the structure more compact. This compact structure can reduce the overall volume of the lamp, which is more advantageous in some application scenarios where lamp size is required (such as recessed lamps, small spotlights, etc.).

[0039] Specifically, heat sink 2 can adopt a high-efficiency heat dissipation structure such as a finned design to increase the heat dissipation area and improve heat dissipation efficiency.

[0040] Specifically, this lamp can not only dissipate heat from the light source driver board 3, but also from the light source board 4. For example, the heat generated by the light source board 4 can be dissipated through the heat dissipation holes 11.

[0041] like Figure 1 and Figure 2 As shown, in some embodiments, a plurality of baffles 13 are spaced apart in the first heat dissipation area 101 to form a plurality of spaced heat dissipation through holes 11; the heat dissipation component 2 includes a plurality of spaced heat dissipation fins 21, and the plurality of heat dissipation fins 21 and the plurality of baffles 13 are spaced apart in the same direction.

[0042] Traditional lighting fixtures may rely solely on simple heat sinks 7 or housings 1 for heat dissipation, resulting in limited heat dissipation area and suboptimal heat dissipation paths. In this lighting fixture, multiple spaced baffles 13 in the first heat dissipation area 101 form heat dissipation holes 11, increasing the channels for heat convection. Hot air can exchange more smoothly with cool outside air through these heat dissipation holes 11. Furthermore, the multiple heat dissipation fins 21 of the heat sink 2 also increase the heat dissipation area. Moreover, the multiple heat dissipation fins 21 and multiple baffles 13 are spaced apart in the same direction, forming an orderly heat dissipation channel. Heat can be efficiently dissipated along this orderly path, reducing heat accumulation inside the lighting fixture and improving heat dissipation efficiency.

[0043] More importantly, the heat sink 2 is essentially an exposed part at the heat dissipation gap 12 of the housing 1. Therefore, in order to improve the aesthetics, it is specially designed with multiple heat dissipation through holes 11 and multiple heat dissipation fins 21 spaced apart, presenting a regular and orderly aesthetic in appearance. This design is integrated with the overall style of the lamp housing 1 and will not appear abrupt like some simple and crude heat dissipation structures (such as large, irregularly shaped heat sinks 7). Therefore, this allows the lamp to achieve the heat dissipation function without compromising the overall aesthetics due to the presence of the heat dissipation structure.

[0044] In some embodiments, the end surface of the heat dissipation member 2 is flush with or lower than the heat dissipation gap 12. In actual design considerations, if the heat dissipation member 2 protrudes from the heat dissipation gap 12, the surface temperature thereof is usually high during the operation of the lamp, and the user can be easily scalded when accidentally contacting the protruding heat dissipation member 2; and when the heat dissipation member 2 protrudes, it is more likely to be collided by foreign matters in the daily environment.

[0045] To this end, the lamp avoids the protruding arrangement of the heat dissipation member 2, greatly reduces the possibility of the user being scalded due to contacting the lamp and reduces the damage of the heat dissipation member 2 caused by the collision of foreign matters, so that the heat dissipation system of the lamp can maintain a stable working state. At the same time, the design of the heat dissipation member 2 flush with or lower than the heat dissipation gap 12 makes the overall lines of the lamp more smooth, giving people a more comfortable feeling in vision and improving the aesthetic degree of the lamp.

[0046] As shown in FIG. 1, Figure 3 In some embodiments, the first heat dissipation region 101 is arranged obliquely, and the first heat dissipation region 101 near the rear end of the heat dissipation member 2 is lower than the first heat dissipation region 101 away from the front end of the heat dissipation member 2; the second heat dissipation region 102 is arranged obliquely, and the second heat dissipation region 102 near the front end of the heat dissipation member 2 is lower than the second heat dissipation region 102 away from the rear end of the heat dissipation member 2, to form a boundary region between the first heat dissipation region 101 and the second heat dissipation region 102, and the heat dissipation member 2 is arranged at the boundary region.

[0047] In practice, it is found that if a lamp does not have a reasonable heat dissipation path design, heat is easily concentrated in some parts, resulting in excessively high local temperature, which not only affects the heat dissipation efficiency, but also can accelerate the aging and damage of the lamp components. To this end, in the lamp, the oblique arrangement of the first heat dissipation region 101 and the second heat dissipation region 102 can form a natural hot air convection channel, and the hot air will flow from the vicinity of the heat dissipation member 2 with high temperature to the low temperature region along the inclined surface, accelerating the dissipation of heat, improving the heat exchange efficiency, and enabling the heat inside the lamp to be dissipated to the surrounding environment more quickly, reducing the temperature inside the lamp.

[0048] Specifically, the end surface of the heat dissipation member 2 is flush with or lower than the horizontal plane where the boundary region is located. In this way, the scalding risk can be further reduced. At the same time, from the appearance, the surface of the lamp is more flat, and the protruding heat dissipation member 2 does not appear to be conspicuous, making the overall appearance of the lamp more coordinated.

[0049] Specifically, the inclination angles of the first heat dissipation region 101 and the second heat dissipation region 102 are α and β respectively, where α < β. In this way, the first heat dissipation region 101 and the second heat dissipation region 102 can adjust their positions and shapes by using different inclination angles α and β according to the space shape inside the lamp and the layout of other components, which makes the heat dissipation regions better fit the contour of the inside of the lamp, maximizes the use of space without increasing the overall volume of the lamp, and leaves enough space for other components.

[0050] For example, in actual products, more heat is generated by the light source board 4, so more heat dissipation structures such as the heat dissipation fins 7 and the heat pipe 6 need to be provided, which requires more space, so the inclination angle of the first heat dissipation region 101 can be set smaller; while the light source driving board 3 generates less heat, so the heat dissipation member 2 can be provided, which requires less space, so the inclination angle of the second heat dissipation region 102 can be set larger to make the overall lamp structure more compact.

[0051] As shown in Figures 2-4 some embodiments, the heat dissipation member 2 includes a plurality of heat dissipation fins 21 arranged at intervals and a first heat dissipation plate 22 and a second heat dissipation plate 23 arranged on opposite sides of the plurality of heat dissipation fins 21; the first heat dissipation plate 22 is in contact with the light source driving board 3, and the second heat dissipation plate 23 is used for dissipating heat from the light source board 4.

[0052] Since the light source driving board 3 and the light source board 4 both generate heat when the lamp is working, and their heat dissipation requirements are different, the traditional heat dissipation structure may only focus on the heat dissipation of one component or cannot simultaneously meet the heat dissipation requirements of the two components in different directions.

[0053] To this end, the first heat dissipation plate 22 of the heat dissipation member 2 of the present lamp is in contact with the light source driving board 3, which can directly absorb the heat generated by the light source driving board 3 and conduct it to the heat dissipation fins 21. At the same time, the second heat dissipation plate 23 of the heat dissipation member 2 is used for dissipating heat from the light source board 4, which can effectively receive the heat emitted by the light source board 4 and transfer it away. This bidirectional heat dissipation structure can simultaneously dissipate heat from the two main heat generating components, improving the overall heat dissipation efficiency. Furthermore, the plurality of heat dissipation fins 21 arranged at intervals greatly increase the surface area of the heat dissipation member 2 in contact with air, thereby improving the heat dissipation performance.

[0054] As shown in Figure 4 specifically, the present lamp further includes a board base 5 for assembling the light source board 4 and a heat pipe 6 connected to the board base 5, the board base 5 is in contact with a plurality of heat dissipation fins 7 arranged at intervals, the heat dissipation fins 7 are arranged on the same side as the heat dissipation through hole 11 and in contact with the heat pipe 6.

[0055] Since the light source plate 4 will generate heat during operation, if the heat cannot be effectively dissipated in time, it will accumulate in the local area of the light source plate 4, resulting in local overheating, which not only affects the light-emitting efficiency of the LED chip, but also may shorten its service life.

[0056] Therefore, in the present lamp, a heat dissipation structure for the light source plate 4 is also specifically provided. That is, the plate base 5 is used to assemble the light source plate 4, and the plate base 5 is in contact with the light source plate 4 and can directly absorb the heat generated by the light source plate 4. At the same time, the plate base 5 is not only in contact with the heat dissipation fins 7, but also connected with the heat pipe 6, and the heat pipe 6 is also in contact with the heat dissipation fins 7. Therefore, the heat on the plate base 5 can be transferred to the heat dissipation fins 7 through the heat pipe 6 for heat dissipation.

[0057] It needs to be explained that the working principle of the heat pipe 6 is that a working medium, such as pure water, ammonia, acetone, etc., is usually installed inside the heat pipe 6. When the evaporation end (the end in contact with the high-temperature heat source, which is the plate base 5 in the present lamp) of the heat pipe 6 absorbs heat, the working medium inside the heat pipe 6 will absorb heat and vaporize, and this process will absorb a large amount of heat, thereby effectively reducing the temperature of the components in contact with the evaporation end of the heat pipe 6.

[0058] When the steam reaches the condensation end of the heat pipe 6, the temperature of the condensation end is relatively low (usually kept low by being in contact with the external air or other heat dissipation components, which is located at the heat dissipation fins 7 in the present lamp), the steam will release heat and liquefy, and the heat released during the liquefaction process will be transferred to the external heat dissipation environment through the condensation end of the heat pipe 6, such as to the heat dissipation fins 7 or the surrounding air. Therefore, this process can effectively dissipate heat to the outside of the lamp, completing a complete heat dissipation cycle.

[0059] Specifically, the plurality of heat dissipation fins 21, the plurality of blocking strips 13, and the plurality of heat dissipation fins 7 are spaced apart in the same direction.

[0060] Specifically, the heat dissipation member 2 and the plurality of heat dissipation fins 7 are in contact. In the illustrated embodiment, more specifically, the second heat dissipation plate 23 of the heat dissipation member 2 and the plurality of heat dissipation fins 7 are in contact. In this way, the heat dissipation member 2 is in contact with the heat dissipation fins 7, which closely links the heat dissipation fins 7 responsible for dissipating heat from the light source plate 4 and the heat dissipation member 2. The plate base 5, the heat dissipation fins 7, and the heat dissipation member 2 (in the illustrated embodiment, which can specifically be the second heat dissipation plate 23, the heat dissipation fins 21, and the first heat dissipation plate 22) together form a cooperative heat dissipation system, and the components can work together to cope with the heat generated by the lamp, achieving rational distribution and efficient transfer of heat within the system. Therefore, the heat distribution inside the lamp can be more uniform, ensuring that the components of the lamp work in a relatively stable temperature environment, improving the overall stability and reliability of the lamp.

[0061] Specifically, the lamp further comprises a fan 8 arranged in the shell 1, the fan 8 is arranged on the side of the heat dissipation fin 7 away from the heat dissipation through hole 11, and the blowing range of the fan 8 covers the first heat dissipation area 101 and the second heat dissipation area 102. In this way, the air blown by the fan 8 can promote the air flow of the whole heat dissipation area, quickly discharge the hot air outside the lamp, and introduce cold air at the same time. The forced convection can form an efficient circulation of the air in the lamp, so that the heat can be evenly dissipated.

[0062] At the same time, since the blowing of the fan 8 can cover the first heat dissipation area 101 and the second heat dissipation area 102, it can uniformly distribute the cold air to the two areas, so that the heat dissipation processes of the two areas are enhanced, so that the heat distribution in the lamp is more uniform, the service life of the components in the lamp is prolonged, and the reliability and stability of the lamp are improved.

[0063] The technical means disclosed in the utility model scheme is not only limited to the technical means disclosed in the above-mentioned embodiments, but also includes the technical scheme composed of any combination of the above technical features. It should be pointed out that for ordinary skilled persons in the art, without departing from the principle of the utility model, some improvements and refinements can be made, and these improvements and refinements are also considered as the protection scope of the utility model.

Claims

1. A luminaire characterized by, The application relates to a heat dissipation device for a light source, which comprises the following parts: a shell (1) with a first heat dissipation area (101) and a second heat dissipation area (102) arranged adjacently, a plurality of heat dissipation through holes (11) are arranged in the first heat dissipation area (101), and a hollow heat dissipation gap (12) is formed in the second heat dissipation area (102); a light source plate (4) arranged in the shell (1), the light source plate (4) is provided with LED chips; a heat dissipation piece (2) arranged in the shell (1) and located at the heat dissipation gap (12); a light source driving plate (3) arranged on the heat dissipation piece (2), the light source driving plate (3) is electrically connected with the light source plate (4) to drive the LED chips on the light source plate (4) to emit light.

2. A luminaire as claimed in claim 1, characterized in that A plurality of blocking strips (13) are arranged in the first heat dissipation area (101) to form a plurality of heat dissipation through holes (11) arranged at intervals. The heat dissipation piece (2) comprises a plurality of heat dissipation fins (21) arranged at intervals, and the heat dissipation fins (21) and the blocking strips (13) are arranged at intervals in the same direction.

3. A luminaire according to claim 1, characterized in that The end surface of the heat dissipation piece (2) is flush with or lower than the heat dissipation gap (12).

4. A luminaire as claimed in any of claims 1 to 3, characterized in that The first heat dissipation area (101) is arranged obliquely, and the first heat dissipation area (101) is lower near the rear end of the heat dissipation piece (2) than the front end of the heat dissipation piece (2) away from the heat dissipation piece (2). The second heat dissipation area (102) is arranged obliquely, and the second heat dissipation area (102) is higher near the front end of the heat dissipation piece (2) than the rear end of the heat dissipation piece (2) away from the heat dissipation piece (2), so as to form a boundary area between the first heat dissipation area (101) and the second heat dissipation area (102), and the heat dissipation piece (2) is arranged at the boundary area.

5. A luminaire as claimed in claim 4, characterised in that The end surface of the heat dissipation piece (2) is flush with or lower than the horizontal plane where the boundary area is located.

6. A luminaire as claimed in claim 4, characterised in that The inclination angles of the first heat dissipation area (101) and the second heat dissipation area (102) are alpha and beta respectively, and alpha < beta.

7. A luminaire as claimed in any one of claims 1 to 3, characterized in that The heat dissipation piece (2) comprises a plurality of heat dissipation fins (21) arranged at intervals and a first heat dissipation plate (22) and a second heat dissipation plate (23) arranged on opposite sides of the heat dissipation fins (21). The first heat dissipation plate (22) is arranged in contact with the light source driving plate (3), and the second heat dissipation plate (23) is used for dissipating heat of the light source plate (4).

8. The luminaire of claim 1, wherein, A plate base (5) for assembling the light source plate (4) and a heat pipe (6) connected with the plate base (5) are further arranged, and a plurality of heat dissipation fins (7) are arranged on the heat pipe (6) at intervals.

9. The luminaire of claim 8, wherein, The heat dissipation piece (2) is arranged in contact with the heat dissipation fins (7).

10. A luminaire as claimed in claim 8 or 9, characterised in that, A fan (8) arranged in the shell is further arranged, the fan (8) is arranged on the side of the heat dissipation fins (7) away from the heat dissipation through holes (11), and the blowing range of the fan (8) covers the first heat dissipation area (101) and the second heat dissipation area (102).

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