Floodlight and heat dissipation housing thereof

Abstract

The present invention provides a floodlight and a heat dissipation housing thereof, wherein the heat dissipation housing comprises a main body plate and a heat dissipation cylinder connected to a first side of the main body plate, wherein the heat dissipation cylinder is provided with a heat dissipation flow channel. The heat dissipation housing of the present invention is provided with a heat dissipation cylinder having a heat dissipation flow channel on the first side, wherein the inner surface and the outer surface of the heat dissipation cylinder are in contact with the air at the same time, thereby increasing the contact area between the heat dissipation housing and the air, thereby accelerating the heat dissipation and improving the heat dissipation efficiency.

Description

Technical Field

[0001] The present invention relates to the field of heat dissipation technology, and in particular to a floodlight and a heat dissipation housing thereof. Background Art

[0002] At present, heat sinks are widely used to dissipate heat from heat-generating devices (such as LED light source substrates) to reduce the temperature of the heat-generating devices and maintain the normal operation of the heat-generating devices.

[0003] In the prior art, a radiator is often installed on the lamp to dissipate heat, or a heat dissipation fin is provided on the lamp housing to increase the contact area of ​​the housing, thereby accelerating the heat dissipation. However, the heat dissipation effect of the above heat dissipation methods is general, and the heat dissipation efficiency is still very low. Summary of the invention

[0004] The invention provides a floodlight and a heat dissipation housing thereof, so as to solve the technical problem of low heat dissipation efficiency in the prior art.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a heat dissipation shell, the heat dissipation shell includes a main body plate and a heat dissipation tube connected to the first side of the main body plate, the heat dissipation tube forms a heat dissipation flow channel, and the inner surface and outer surface of the heat dissipation tube are in contact with the air to increase the heat dissipation area.

[0006] According to a preferred embodiment of the present invention, both ends or one end of the heat dissipation tube are open to form the heat dissipation channel with the inner surface of the heat dissipation tube.

[0007] According to a preferred embodiment of the present invention, the inner surface and / or the outer surface of the heat dissipation tube is provided with a screw groove, and the screw groove is formed in a cylindrical shape surrounded by a plate extending from the heat dissipation tube.

[0008] According to a preferred embodiment of the present invention, the heat dissipation cylinder is in a cylindrical shape, an elliptical cylindrical shape, a regular polygonal cylindrical shape, or an irregular polygonal cylindrical shape surrounded by at least three plates.

[0009] According to a preferred embodiment of the present invention, a first sealing glue groove with a concave step is formed on the outer surface of the heat dissipation tube, and the first sealing glue groove is used to receive the sealing glue.

[0010] According to a preferred embodiment of the present invention, the heat dissipation shell also includes a side body plate connected to the second side edge of the main body plate, the side body plate is at a right angle or an obtuse angle relative to the main body plate, and the surface of the side body plate is provided with a second sealing groove corresponding to the first sealing groove, and the second sealing groove is used to receive the sealant, wherein the second side edge and the first side edge are respectively located on opposite sides of the main body plate.

[0011] According to a preferred embodiment of the present invention, heat dissipation fins are provided on the back side of the main body plate and / or the side body plate.

[0012] According to a preferred embodiment of the present invention, the cross section of the heat dissipation fin is straight strip-shaped or L-shaped.

[0013] According to a preferred embodiment of the present invention, the main body plate is provided with an assembly hole, the thickness of the heat sink plate at the position where the assembly hole is provided is greater than or equal to the thickness at the position where the assembly hole is not provided, and the assembly hole includes a through hole and / or a blind hole.

[0014] In order to solve the above technical problem, another technical solution adopted by the present invention is: to provide a floodlight, wherein the floodlight comprises the above-mentioned heat dissipation housing.

[0015] The beneficial effect of the present invention is that, different from the prior art, the heat dissipation shell of the present invention is provided with a heat dissipation tube having a heat dissipation channel on the first side, and the inner surface and the outer surface of the heat dissipation tube are in contact with the air at the same time, thereby increasing the contact area between the heat dissipation shell and the air, thereby accelerating the heat dissipation and improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0017] Figure 1 is a schematic diagram of the three-dimensional structure of a heat dissipation housing according to an embodiment of the present invention;

[0018] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the heat dissipation housing from another perspective is shown;

[0019] Figure 3 yes Figure 1 A schematic diagram of the planar structure of the heat dissipation housing shown;

[0020] Figure 4 is a schematic diagram of the three-dimensional structure of a floodlight according to another embodiment of the present invention;

[0021] Figure 5 yes Figure 4 The schematic diagram of the exploded structure of the floodlight shown;

[0022] Figure 6 yes Figure 5 Schematic diagram of the three-dimensional structure of the edge block shown in;

[0023] Figure 7 yes Figure 6 A schematic diagram of the three-dimensional structure of the edge block shown in another viewing angle;

[0024] Figure 8 yes Figure 4 A schematic cross-sectional view of the floodlight shown in FIG.

[0025] Fig. 9 yes Figure 5 A partial enlarged schematic diagram of the center circle A. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Please also read Figure 1 and Figure 2 , Figure 1 is a schematic diagram of the three-dimensional structure of a heat dissipation housing according to an embodiment of the present invention. Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the heat dissipation housing from another viewing angle is shown.

[0028] The present invention provides a heat dissipation housing 100, which includes a main body plate 10 and a heat dissipation tube 20 connected to a first side edge 15 of the main body plate 10. The heat dissipation tube 20 can be integrally formed with the main body plate 10 or detachably connected. In this embodiment, the heat dissipation tube 20 and the main body plate 10 are arranged as an integral structure, which can improve the heat conduction efficiency between the heat dissipation tube 20 and the main body plate 10 on the one hand, and reduce the number of parts on the other hand, thereby reducing the complexity of assembly.

[0029] Optionally, a heat dissipation channel 22 is formed on the heat dissipation tube 20, and both the inner surface and the outer surface of the heat dissipation tube 20 are in contact with the air to increase the heat dissipation area.

[0030] Optionally, the heat dissipation tube 20 may be provided with openings at both ends or an opening may be formed at one end and the other end may be closed, thereby forming a heat dissipation channel 22 that enables air convection at both ends or one end of the heat dissipation tube 20. The heat dissipation channel 22 can increase the contact area between the heat dissipation housing 100 and the air, and can also enable air convection outside the heat dissipation housing 100, thereby increasing the air flow speed and further improving the heat dissipation efficiency. In this embodiment, if Figure 1 and Figure 2 As shown, openings 24 are formed at both ends of the heat dissipation tube 20 .

[0031] Optionally, the heat dissipation cylinder 20 is in a cylindrical shape, an elliptical cylindrical shape, a regular polygonal cylindrical shape, or an irregular polygonal cylindrical shape surrounded by at least three plates.

[0032] For example, the heat dissipation tube 20 may be an irregular polygonal tube formed by at least three plates. Figure 1 As shown, the heat dissipation tube 20 is an irregular polygonal tube formed by a first plate body 201, a second plate body 202, a third plate body 203, a fourth plate body 204, a fifth plate body 205, a sixth plate body 206 and a seventh plate body 207 which are connected end to end in sequence, and the first plate body 201 and the seventh plate body 207 are simultaneously connected to the first side edge 15 of the main body plate 10.

[0033] Optionally, the inner surface and / or outer surface of the heat dissipation tube 20 is provided with a screw groove 26, which is formed in a cylindrical shape by a plate extending from the heat dissipation tube 20. The screw groove 26 is used to receive a screw to be screwed for assembly, and the number of the screw groove 26 can be one or more.

[0034] Among them, the length of the screw groove 26 can be equal to the length of the heat dissipation tube 20, that is, a screw groove 26 is formed in the heat dissipation tube 20 to run through the length direction of the heat dissipation tube 20, or it can be set to a length that matches the length of the screw used for assembly, so as to cooperate with the screw to connect the heat dissipation shell 100 with other components.

[0035] See also Figure 3 , Figure 3 yes Figure 1 In the present embodiment, two screw grooves 26 are formed on the end surface of the heat dissipation tube 20 perpendicular to its length direction, and the length of the two screw grooves 26 is equal to the length of the heat dissipation tube 20. The screw grooves 26 can further increase the contact area between the heat dissipation tube 20 and the air, thereby improving the heat dissipation efficiency.

[0036] Optionally, a concave step-shaped first sealing groove 28 is formed on the outer surface of the heat dissipation tube 20, and the first sealing groove 28 is used to receive the sealant. The advantage of providing the concave step-shaped first sealing groove 28 is that the sealant is first filled in the bottom end with a smaller cross-sectional area, and when pressing, the excess sealant is squeezed into the upper end with a larger cross-sectional area, thereby preventing the sealant from overflowing, making the product more beautiful.

[0037] Optionally, the heat dissipation housing 100 also includes a side body plate 30 connected to the second side edge 16 of the main body plate 10, the side body plate 30 is at a right angle or an obtuse angle relative to the main body plate 10, and the surface of the side body plate 30 is provided with a second sealing groove 32 corresponding to the first sealing groove 28, and the second sealing groove 32 is used to receive the sealant.

[0038] Specifically, in this embodiment, Figure 2 As shown, the first side 15 and the second side 16 are respectively two opposite sides of the main plate 10. Among them, the heat dissipation tube 20 is connected to the first side 15, and the side body plate 30 is connected to the second side 16, so that the heat dissipation tube 20 and the side body plate 30 are respectively located on the opposite sides of the main plate 10, thereby forming a trough-shaped heat dissipation shell 100. Among the multiple plates that make up the heat dissipation tube 20, the fifth plate body 205, the sixth plate body 206 and the seventh plate body 207 are connected in sequence, and are symmetrically arranged with the side body plate 30 on the opposite sides of the main plate 10. That is, the seventh plate body 207 connected to the main plate 10 can also be set at a right angle or an obtuse angle to the main plate 10. In this embodiment, as Figure 1 As shown, the side plate 30 and the seventh plate 207 are both arranged at an obtuse angle with the main plate 10 .

[0039] Among them, Figure 3 As shown, the second sealing groove 32 and the first sealing groove 28 are both configured to be in a concave step-like shape.

[0040] Optionally, the back of the main plate 10 and / or the side plate 30 is provided with heat dissipation fins 34. Specifically, the heat dissipation fins 34 can be provided only on the main plate 10 or the side plate 30, or can be provided on both the main plate 10 and the side plate 30 to increase the heat dissipation area of ​​the heat dissipation housing 100.

[0041] like Figure 1 and Figure 3 As shown, in this embodiment, the heat dissipation fins 34 are disposed on both the main body plate 10 and the side body plate 30 , and the heat dissipation fins 34 are perpendicular to the surface on which the heat dissipation fins 34 are disposed.

[0042] Optionally, the cross section of the heat dissipation fin 34 is in a straight strip shape or an L shape.

[0043] Specifically, the heat dissipation fins 34 can be straight strips at the same time, can be L-shaped at the same time, can be partially straight strips and partially L-shaped. Of course, the cross-section of the heat dissipation fins 34 can also be triangular or arc-shaped, etc., which is not specifically limited in this application.

[0044] In this embodiment, if Figure 3 As shown, the heat dissipation fins 34 provided on the main body plate 10 are L-shaped, and the bending directions of the L-shaped heat dissipation fins 34 are the same. The heat dissipation fins 34 provided on the side body plate 30 are straight strip-shaped.

[0045] Furthermore, the main body plate 10 is provided with an assembly hole 12 for assembling other components such as a light source substrate. Depending on the assembly form, the assembly hole 12 may be a through hole and / or a blind hole. The thickness of the main body plate 10 at the position where the assembly hole 12 is provided is greater than or equal to the thickness at the position where the assembly hole 12 is not provided.

[0046] Specifically, Figure 2 As shown, an assembly hole 12 is provided on the main body plate 10. In order to prevent the assembly hole 12 from affecting the rigidity of the heat dissipation housing 100, the assembly hole 12 can be provided at the gap between the heat dissipation fins 34.

[0047] Furthermore, in this embodiment, if Figure 2 As shown, the thickness at the position where the assembly hole 12 is set is greater than the thickness at the position where the assembly hole 12 is not set, so as to improve the rigidity of the heat dissipation housing 100 and prevent the heat dissipation housing 100 from breaking at the position where the assembly hole 12 is set.

[0048] In addition, the present invention also provides a floodlight 1000, such as Figure 4 and Figure 5 As shown, Figure 4 is a schematic diagram of the three-dimensional structure of a floodlight according to another embodiment of the present invention. Figure 5 yes Figure 4 In this embodiment, the floodlight 1000 generally includes a heat dissipation housing 100 , a side block 200 and a cover plate 300 .

[0049] Among them, in the previous embodiment, the heat dissipation shell 100 includes a main body plate 10 and a heat dissipation tube 20 arranged on the first side 15 of the main body plate 10 and a side body plate 30 arranged on the second side 16 of the main body plate 10, and a first sealing groove 28 is formed on the heat dissipation tube 20, and a second sealing groove 32 is formed on the side body plate 30.

[0050] In another embodiment, the heat dissipation housing 100 may further include a main body plate 10 and side plates 30 disposed on two opposite sides of the main body plate 10 , and a first sealing groove 28 or a second sealing groove 32 is formed on each side plate 30 .

[0051] In another embodiment, the heat dissipation housing 100 may further include a main body plate 10 and heat dissipation tubes 20 disposed on two opposite sides of the main body plate 10 , and a first sealing groove 28 or a second sealing groove 32 is formed on each heat dissipation tube 20 .

[0052] It can be seen from the above embodiments that in the present application, the heat dissipation shell 100 may include a main body plate 10 and a heat dissipation tube 20 and / or a side body plate 30 arranged on two opposite sides of the main body plate 10 to form a trough-shaped heat dissipation shell 100, and a first sealing groove 28 and a second sealing groove 32 are respectively formed on the heat dissipation tube 20 and / or the side body plate 30.

[0053] Among them, the structures of the main body plate 10, the heat dissipation tube 20 and the side body plate 30 are the same as those described above. Please refer to the description in the above text and will not be repeated here.

[0054] The side block 200 is arranged on the other opposite side of the heat dissipation housing 100, and is fastened with the heat dissipation housing 100 to cover the two ends of the groove-shaped heat dissipation housing 100, thereby forming an assembly cavity 210 with the heat dissipation housing 100; the cover plate 300 is covered in the assembly cavity 210.

[0055] Specifically, Figure 5 As shown, in this embodiment, there are two side blocks 200 , and the two side blocks 200 are respectively located at the other opposite side edges of the main plate 10 , that is, at the third side edge 17 and the fourth side edge 18 of the main plate 10 .

[0056] Alternatively, if Figure 6 and Figure 7 As shown, Figure 6 yes Figure 5 The three-dimensional structure diagram of the edge block shown in FIG. Figure 7 yes Figure 6 The three-dimensional structure diagram of the edge block shown in another perspective. Figure 5 The side block 200 includes an enclosure plate 260 and a lap plate 270. The enclosure plate 260 is connected to the heat dissipation tube 20 and / or the side body plate 30. The lap plate 270 is buckled on the main body plate 10, the heat dissipation tube 20 and / or the side body plate 30. The enclosure plate 260 is provided with a third sealing groove 220 connected to the first sealing groove 28 and the second sealing groove 32, and a fourth sealing groove 240 is formed on the lap plate 270.

[0057] Specifically, in this embodiment, the structure of the edge block 200 located at the fourth side 18 is the same as the structure of the edge block 200 located at the third side 17. The edge block 200 located at the third side 17 is taken as an example for description, and the structure of the edge block 200 located at the fourth side 18 is not repeated in this application.

[0058] like Figure 5 and Figure 6 As shown, the heat dissipation housing 100 includes a main body plate 10, a heat dissipation tube 20 provided on a first side edge 15, and a side body plate 30 provided on a second side edge 16. The enclosure plate 260 is connected to the end surface of the heat dissipation tube 20 perpendicular to the length direction on one hand, and is connected to the end surface of the side body plate 30 perpendicular to the length direction on the other hand, thereby forming an assembly cavity 210.

[0059] Furthermore, if Figure 5 and Figure 7As shown, a third sealing groove 220 is formed on the enclosure plate 260, and the structure of the third sealing groove 220 matches the structure of the first sealing groove 28 and the second sealing groove 32, so that when the enclosure plate 260 and the heat dissipation housing 100 are enclosed, the two ends of the third sealing groove 220 are respectively connected with the first sealing groove 28 and the second sealing groove 32, so that the first sealing groove 28 and the second sealing groove 32 located on the opposite sides of the heat dissipation housing 100 are connected, thereby forming a heat dissipation housing 100 as shown in FIG. Figure 5 The annular sealing groove 230 is shown. The annular sealing groove 230 is used to receive glue to seal the cover plate 300.

[0060] Furthermore, if Figure 7 and Figure 8 As shown, Figure 8 yes Figure 4 The cross-sectional structure diagram of the floodlight shown in FIG. The lap plate 270 is connected to the enclosure plate 260 and is buckled on the main plate 10 on one hand and buckled on the heat dissipation tube 20 and the side plate 30 located on two opposite sides of the main plate 10 on the other hand.

[0061] Optionally, a fourth sealing groove 240 is provided on the buckle surface of the side block 200 and the heat dissipation housing 100 , and the fourth sealing groove 240 is used to receive glue to seal the gap between the heat dissipation housing 100 and the side block 200 .

[0062] Specifically, Figure 6 and Figure 8 As shown, the fourth sealing groove 240 is formed on the lap plate 270 and is located on the contact surface between the lap plate 270 and the heat dissipation housing 100. The fourth sealing groove 240 is in a concave step shape, so that when receiving the glue, it can prevent excess sealant from overflowing and affecting the appearance.

[0063] Optionally, the fourth sealing groove 240 is communicated with the annular sealing groove 230 .

[0064] Specifically, see Figure 7 and Fig. 9 , Fig. 9 yes Figure 5 A partial enlarged schematic diagram of the middle circle A. In this embodiment, a glue overflow groove 250 is further formed on the edge block 200. The glue overflow groove 250 is connected to the annular glue sealing groove 230 on one hand, and is connected to the fourth glue sealing groove 240 on the other hand, so that the fourth glue sealing groove 240 is connected to the annular glue sealing groove 230. Figure 7 As shown, the overflow glue groove 250 is located at both ends of the third glue sealing groove 220. Of course, in other embodiments, the overflow glue groove 250 can also be set at other positions, which is not specifically limited in this application.

[0065] Optionally, a positioning column is provided on one of the main plate 10 and the lap plate 270, and a positioning hole is formed on the other of the main plate 10 and the lap plate 270. The positioning column and the positioning hole cooperate with each other to position the side block 200 during assembly, so that the installation of the side block 200 is more precise.

[0066] Specifically, in this embodiment, please refer to Figure 2 and Figure 6 A positioning hole 14 is formed on the main plate 10 of the heat dissipation housing 100, and a positioning column 272 is formed on the side of the lap plate 270 facing the main plate 10. The size of the positioning column 272 matches the size of the positioning hole 14, so that the side block 200 and the heat dissipation housing 100 are accurately assembled for easy installation.

[0067] Furthermore, the cover plate 300 is used to seal the assembly cavity 210. Specifically, the cover plate 300 can be bonded to the heat dissipation housing 100 and the edge block 200 through the sealant in the annular sealant groove 230. On the one hand, the sealant can be used to connect and fix the cover plate 300; on the other hand, the sealant can also play a role in sealing and waterproofing.

[0068] During the assembly process, firstly, glue is applied in the fourth glue sealing groove 240 to seal the edge block 200 and the heat dissipation housing 100 to form the assembly cavity 210; then, glue is applied in the annular glue sealing groove 230 to seal and fix the cover plate 300. When the annular glue sealing groove 230 receives glue, excess sealant will flow into the fourth glue sealing groove 240 connected to the annular glue sealing groove 230, thereby further improving the sealing effect between the edge block 200 and the heat dissipation housing 100.

[0069] Optionally, the floodlight 1000 further includes a fixing bracket 400 , and the fixing bracket 400 is fixed to the heat dissipation housing 100 via screw grooves 26 formed on the inner surface and / or the outer surface of the heat dissipation tube 20 .

[0070] Furthermore, if Figure 5 As shown, the floodlight 1000 further includes a light source substrate 510 and a reflector 520 disposed in the assembly cavity 210 .

[0071] like Figure 5 As shown, the light source substrate 510 can be a rectangular light source substrate, on which a plurality of sub-light sources are arranged, and the sub-light sources are arrayed or radially distributed on the substrate. The light source substrate 510 cooperates with the assembly hole 12 on the heat dissipation housing 100 through fastening elements such as screws to fix the light source substrate 510 on the heat dissipation housing 100.

[0072] Of course, the light source substrate 510 can also be a regular or irregular shape such as a circle or an ellipse, which is not specifically limited in this application.

[0073] The beneficial effects of the above embodiments are as follows: a first glue sealing groove 28 and a second glue sealing groove 32 are formed on the heat dissipation shell 100 of the floodlight 1000 of the present invention, and a third glue sealing groove 220 is formed on the side block 200. When the heat dissipation shell 100 and the side block 200 are docked and snap-fitted, the above first glue sealing groove 28, the second glue sealing groove 32 and the third glue sealing groove 220 together form an annular glue sealing groove 230. By applying glue in the annular sealing groove 230, the cover plate 300 can be sealed and connected with the heat dissipation shell 100 and the side block 200. The sealing structure is novel and easy to assemble.

[0074] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A heat dissipation housing, characterized in that: The heat dissipation housing comprises a main body plate and a heat dissipation tube connected to a first side of the main body plate, the heat dissipation tube is formed with a heat dissipation flow channel, and the inner surface and the outer surface of the heat dissipation tube are in contact with the air to increase the heat dissipation area; The heat dissipation tube is an irregular polygonal tube formed by the first plate body, the second plate body, the third plate body, the fourth plate body, the fifth plate body, the sixth plate body and the seventh plate body connected end to end in sequence, and the first plate body and the seventh plate body are connected to the first side of the main plate at the same time, and the opposite ends of the heat dissipation tube along the width direction are respectively located on both sides of the main plate along the thickness direction; The heat dissipation housing further comprises a side body plate connected to the second side edge of the main body plate, the side body plate is at an obtuse angle relative to the main body plate, wherein the second side edge and the first side edge are respectively located at two opposite sides of the main body plate; Only the back sides of the main body plate and the side body plate are provided with heat dissipation fins; The inner surface of the heat dissipation tube is provided with a screw groove, and the screw groove is formed in a cylindrical shape by a plate extending from the heat dissipation tube. Two screw grooves are formed on the end surface of the heat dissipation tube perpendicular to its length direction, and the length of the two screw grooves is equal to the length of the heat dissipation tube. The screw groove is used to receive the screw to screw together so that the fixing frame is fixed to the heat dissipation shell through the screw groove.

2. The heat dissipation housing according to claim 1, characterized in that: Both ends or one end of the heat dissipation tube is open to form the heat dissipation channel with the inner surface of the heat dissipation tube.

3. The heat dissipation housing according to claim 1, characterized in that: The outer surface of the heat dissipation tube is formed with a concave step-type first sealing glue groove, and the first sealing glue groove is used for receiving the sealing glue.

4. The heat dissipation housing according to claim 3, characterized in that: A second sealing groove corresponding to the first sealing groove is provided on the surface of the edge body plate, and the second sealing groove is used for receiving the sealant.

5. The heat dissipation housing according to claim 1, characterized in that: The cross section of the heat dissipation fin is in a straight strip shape or an L shape.

6. The heat dissipation housing according to claim 1, characterized in that: The main body plate is provided with an assembly hole, the thickness of the main body plate at the position where the assembly hole is provided is greater than or equal to the thickness at the position where the assembly hole is not provided, and the assembly hole includes a through hole and / or a blind hole.

7. A floodlight, characterized in that: The floodlight comprises a heat dissipation housing according to any one of claims 1-6.

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