Efficient heat dissipation type projection lamp

Abstract

The utility model discloses an efficient heat dissipation type projection lamp which comprises a lamp shell, a light source part, a closed power source cavity and a power source part, the light source part comprises lamp beads, an optical lens and a lamp panel, an exposed comb-shaped heat dissipation structure is arranged on the surface of one side of the lamp shell, and the comb-shaped heat dissipation structure abuts against the outer surface of the power source cavity; the power supply cavity comprises a power supply cavity cover body and a power supply cavity shell, the power supply cavity cover body abuts against the comb-shaped heat dissipation structure, and the power supply part is fixedly assembled on the inner surface of the power supply cavity shell; a honeycomb grating, an optical film, a round hole grating and a light-transmitting plate are sequentially arranged on one side of the lamp shell and are all fixedly assembled with the lamp shell, the light-transmitting plate is arranged at a light outlet of the lamp shell in a sealed mode, and grating round holes are formed in the round hole grating. The isolated double-cavity structure design is adopted, thermoelectric isolation is achieved in a real sense, heat in the lamp shell and heat in the power source cavity are timely conducted and dissipated to the outside through the comb-shaped heat dissipation structure, the heat dissipation effect is improved, and the working performance of electronic components is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lamp lighting, in particular to a high-efficiency heat dissipation type floodlight. Background Art

[0002] The existing floodlights on the market are generally divided into aluminum extruded floodlights and die-cast floodlights according to different heat dissipation mechanisms. The corresponding heat sinks are aluminum extruded heat sinks and die-cast heat sinks, respectively. The LED light source and the heat sink are in the same chamber and the heat is dissipated through the heat sink.

[0003] The heat dissipation design of the above two types of floodlights easily forms a heat island effect at the bottom of the LED light source, resulting in heat accumulation, which in turn leads to a relatively high junction temperature of the LED light source. In addition, the LED power module is located in the lamp housing and is in the same space as the LED light source and the heat sink, so that the heat reduces the service life of the LED light source; in addition, the heat distribution of the entire lamp is uneven, resulting in the other outer surfaces of the lamp not being effectively utilized, causing a waste of space and making the lamp very large.

[0004] In recent years, floodlights that use heat pipe fins for heat dissipation have also appeared. The general structure of this type of lamp is that the LED light source is attached to the LED light board (aluminum substrate or FR4 board), and then the LED light board is attached to the copper plate (aluminum plate) of the heat sink or heat pipe fin heat sink. The heat pipe fin heat dissipation mechanism has a heat sink thickness of only 1 mm or even thinner. These heat sinks are assembled together by welding with a soldering agent, and the heat pipe runs through them and is then connected to the copper plate (aluminum plate) used to fix the LED. The heat dissipation mechanism of this technology has a complex manufacturing process and high cost. At the same time, the heat sink is made into a serrated shape, and the thickness requirement is very high, and the production cost is high.

[0005] Regardless of whether it is a floodlight with an aluminum extruded heat sink, a floodlight with a die-cast heat sink, or a floodlight with a heat pipe fin cooling mechanism, these three types of floodlights have a common technical feature: the LED light source, heat dissipation structure and LED power module are in the same sealed lamp housing, and the heat and electricity are not separated, so that it is affected by the heat accumulated in the lamp housing, the heat dissipation effect is poor, and the internal components of the floodlight are easily damaged.

[0006] In the prior art, a Chinese utility model patent, authorization announcement number: CN218582984U, discloses a dual-cavity LED heat dissipation mechanism and a floodlight, which relates to the technical field of LED lamps, including a radiator and a heat pipe. The front of the radiator is used to connect optical engine components, and the back is used to install a control board and a power supply component. At least one heat pipe is embedded or buried in the front of the radiator, and at least one heat pipe is provided on the back of the radiator. The heat pipe on the back of the radiator can be plugged into the through hole of the rear cover of the lamp. The heat of the light source engine part can be quickly guided to other components of the lamp through the radiator and the heat pipe, effectively solving the heat island effect, increasing the effective heat dissipation area of ​​the lamp, reducing the working environment temperature of the electrical components in the electrical cavity of the lamp, and allowing the entire surface of the lamp to form heat convection with the air, so that the heat is evenly distributed. While extending the life of the lamp, the overall power and stability of the lamp are improved, the use cost of the lamp is reduced, and it is suitable for mass production.

[0007] In the above technical solution, the electrical board and the power supply component are tightly attached and assembled on the radiator, the electrical board, the power supply component and the radiator are enclosed in the power supply housing together, and the optical engine component and the radiator are assembled and enclosed in the lamp housing. Thermal and electrical isolation is not truly achieved, which causes the heat in the lamp housing to be conducted to the power supply housing through the radiator. Heat is also generated in the power supply housing due to the operation of the electrical board and the power supply component, which causes a sharp increase in the heat in the power supply housing. The heat cannot be conducted away in time through the radiator, and long-term use will affect the working performance of the electronic components of the floodlight.

[0008] Therefore, it is necessary to provide a floodlight that overcomes the above problems. Utility Model Content

[0009] In view of the problems existing in the prior art, the utility model provides a high-efficiency heat dissipation type floodlight. After adopting the floodlight, on the one hand, the light source part is assembled in the lamp housing, the power supply part is assembled in the closed power supply cavity, and a comb-shaped heat dissipation structure is arranged on the surface of the lamp housing on one side close to the power supply cavity, the comb-shaped heat dissipation structure is abutted against the power supply cavity cover, the power supply part is fixedly assembled on the inner surface of the power supply cavity housing, the comb-shaped heat dissipation structure is exposed and arranged between the lamp housing and the power supply cavity, and an isolated double-cavity structure design is adopted to realize thermoelectric isolation in a real sense, so that the heat in the lamp housing and the heat in the power supply cavity are conducted through the comb-shaped heat dissipation structure and dissipated to the external air in time, thereby improving the heat dissipation effect of the floodlight and improving the working performance of the electronic components of the floodlight;

[0010] On the other hand, a honeycomb grille, an optical film, a circular hole grille and a light-transmitting plate are sequentially arranged on the side of the lamp housing away from the power cavity, and are assembled and fixed to the lamp housing. The light-transmitting plate is sealed at the light outlet of the lamp housing, and a number of grid circular holes corresponding to a number of optical lenses are opened on the circular hole grille. The honeycomb grille design can control glare and improve lighting comfort. The optical film design is used to improve the distribution of light and lighting effects, solve the light spot problem, widen the illumination angle, and reduce blue light overflow. The circular hole grille design reduces light loss, has good energy-saving effects, extends the service life of the lamp, and improves the beam effect of the floodlight as a whole, which is green and energy-saving.

[0011] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0012] The present application proposes a high-efficiency heat dissipation type floodlight, comprising a lamp housing, a light source part assembled in the lamp housing, a closed power supply cavity assembled and connected to the lamp housing, and a power supply part assembled in the power supply cavity, wherein the light source part comprises a plurality of lamp beads, a plurality of optical lenses arranged corresponding to the plurality of lamp beads, and a lamp board for mounting the plurality of lamp beads and the plurality of optical lenses, and the lamp housing is provided with a comb-shaped heat dissipation structure exposed between the lamp housing and the power supply cavity on a surface of one side close to the power supply cavity, and the comb-shaped heat dissipation structure abuts against the outer surface of the power supply cavity;

[0013] The power cavity comprises a power cavity cover and a power cavity shell which are assembled and connected, the power cavity cover abuts against the comb-shaped heat dissipation structure, and the power supply part is fixedly assembled on the inner surface of the power cavity shell;

[0014] The lamp housing is provided with a honeycomb grille, an optical film, a circular hole grille and a light-transmitting plate in sequence on a side away from the power cavity; the honeycomb grille, the optical film and the circular hole grille are all assembled and fixed to the lamp housing; the light-transmitting plate is sealed at the light outlet of the lamp housing; the circular hole grille is provided with a number of grille circular holes corresponding to the number of optical lenses.

[0015] In order to solve the technical problem, the further technical solution adopted by the utility model is:

[0016] Optionally, in the above-mentioned floodlight, the comb-shaped heat dissipation structure includes a plurality of heat dissipation fins arranged in parallel and at intervals, the power cavity cover is provided with reinforcing ribs on one side surface close to the heat dissipation fins, and the heat dissipation fins are provided with makeshift grooves capable of accommodating the reinforcing ribs at positions corresponding to the reinforcing ribs.

[0017] Further optionally, in the above-mentioned floodlight, a portion of the heat dissipation fins are provided with a first protrusion at one end close to the power cavity cover body, and a portion of the heat dissipation fins are abutted against the power cavity cover body through the first protrusion, so that a first heat dissipation gap is provided between a portion of the heat dissipation fins and the power cavity cover body, and a second heat dissipation gap is provided between another portion of the heat dissipation fins and the power cavity cover body.

[0018] Further optionally, in the above-mentioned floodlight, a second protrusion is provided on the reinforcing rib, and the power cavity cover is abutted against the clearance groove through the second protrusion, so that a third heat dissipation gap is provided between the reinforcing rib and the clearance groove.

[0019] Optionally, in the above-mentioned floodlight, the plurality of optical lenses are truncated cone lenses, the plurality of optical lenses have upper bottom surfaces on a side close to the light board, and the plurality of optical lenses have lower bottom surfaces on a side away from the light board.

[0020] Optionally, in the above-mentioned floodlight, the circular holes of the grille are integrally formed with a hollow column from the circular hole grille side to the optical film side, and a plurality of optical tooth grooves are opened on the inner circumference of the hollow column along the length direction of the hollow column.

[0021] Optionally, in the above-mentioned floodlight, the power cavity cover is provided with a female wire threading groove on a side close to the lamp housing, and the lamp housing is provided with a male wire threading groove at a position corresponding to the female wire threading groove, a layer of sealing ring is laid in the female wire threading groove, the male wire threading groove is matched and inserted into the female wire threading groove, and the end of the male wire threading groove abuts against the sealing ring.

[0022] Optionally, the above-mentioned floodlight further includes a U-shaped adjustment bracket, which is connected to the power cavity through a hexagon countersunk screw, and angle scales are provided on both sides of the open end of the U-shaped adjustment bracket, and the U-shaped adjustment bracket is provided with a mounting hole on the opposite side of the open end.

[0023] Optionally, in the above-mentioned floodlight, the comb-shaped heat dissipation structure, the power cavity cover and the power cavity shell are assembled and connected by means of hexagonal spring washer combination screws, and the power cavity shell is provided with a breathing plug and a waterproof joint connecting the inside and the outside.

[0024] Optionally, in the above-mentioned floodlight, the light-transmitting plate is tempered glass.

[0025] Compared with the prior art, this application has the following technical effects:

[0026] On the one hand, the light source part of the present application is assembled in the lamp housing, and the power supply part is assembled in the closed power supply cavity. The lamp housing is provided with a comb-shaped heat dissipation structure on one side surface close to the power supply cavity, and the comb-shaped heat dissipation structure is in contact with the power supply cavity cover. The power supply part is fixedly assembled on the inner surface of the power supply cavity housing, and the comb-shaped heat dissipation structure is exposed and arranged between the lamp housing and the power supply cavity. The isolated double-cavity structure design is adopted to achieve thermal and electrical isolation in a real sense, so that the heat in the lamp housing and the heat in the power supply cavity are conducted through the comb-shaped heat dissipation structure and dissipated to the external air in time, thereby improving the heat dissipation effect of the floodlight and improving the working performance of the electronic components of the floodlight;

[0027] On the other hand, the lamp housing of the present application is provided with a honeycomb grille, an optical film, a circular hole grille and a light-transmitting plate in sequence on the side away from the power cavity, and is assembled and fixed to the lamp housing. The light-transmitting plate is sealed at the light outlet of the lamp housing, and a number of grid circular holes corresponding to a number of optical lenses are opened on the circular hole grille. The honeycomb grille design can control glare and improve lighting comfort. The optical film design is used to improve the distribution of light and lighting effects, solve the light spot problem, widen the illumination angle, and reduce blue light overflow. The circular hole grille design reduces light loss, has good energy-saving effects, extends the service life of the lamp, and improves the beam effect of the floodlight as a whole, which is green and energy-saving.

[0028] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure explosion of the preferred embodiment of the present application;

[0030] Figure 2 This is one of the schematic diagrams of the three-dimensional assembly structure of the preferred embodiment of the present application;

[0031] Figure 3 This is the second schematic diagram of the three-dimensional assembly structure of the preferred embodiment of the present application;

[0032] Figure 4 This is one of the three-dimensional structural schematic diagrams of the circular hole grille of the preferred embodiment of the present application;

[0033] Figure 5 This is the second schematic diagram of the three-dimensional structure of the circular hole grille of the preferred embodiment of the present application;

[0034] Figure 6 is a schematic cross-sectional view of a hollow columnar body in a preferred embodiment of the present application;

[0035] Figure 7It is a three-dimensional exploded schematic diagram of the light source part, comb-shaped heat dissipation structure, power cavity and power supply part of the preferred embodiment of the present application;

[0036] Figure 8 This is one of the three-dimensional structural schematic diagrams of the comb-shaped heat dissipation structure of the preferred embodiment of the present application;

[0037] Fig. 9 This is the second schematic diagram of the three-dimensional structure of the comb-shaped heat dissipation structure of the preferred embodiment of the present application;

[0038] Fig.10 It is a schematic diagram of the three-dimensional structure of the power cavity cover body of the preferred embodiment of the present application;

[0039] Fig.11 It is a three-dimensional exploded schematic diagram of the male threading trough, the female threading trough and the sealing ring of the preferred embodiment of the present application;

[0040] Fig.12 This is a schematic diagram of a first heat dissipation gap in a preferred embodiment of the present application;

[0041] Fig.13 is a side view schematic diagram of a preferred embodiment of the present application (showing the second heat dissipation gap);

[0042] Fig.14 This is a schematic diagram of a third heat dissipation gap in a preferred embodiment of the present application;

[0043] The parts in the accompanying drawings are marked as follows:

[0044] Lamp housing 1, male threading groove 11, light source part 2, lamp bead 21, optical lens 22, lamp board 23, power supply cavity 3, power supply cavity cover 31, reinforcing rib 311, second protrusion 3111, female threading groove 312, sealing ring 313, power supply cavity housing 32, breathing plug 321, waterproof joint 322, power supply part 4, comb-shaped heat dissipation structure 5, heat dissipation fins 51, make way groove 511, first protrusion 512, first heat dissipation gap 513, second heat dissipation gap 514, third heat dissipation gap 515, honeycomb grille 6, optical film 7, circular hole grille 8, grille circular hole 81, hollow columnar body 82, optical tooth groove 821, light-transmitting plate 9, U-shaped adjustment bracket 100, hexagon socket countersunk screw 101, angle scale 102, mounting hole 103 and hexagon socket spring washer combination screw 104. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0046] like Figures 1 to 14 As shown, in one embodiment of the present application, a high-efficiency heat dissipation type floodlight comprises a lamp housing 1, a light source part 2 assembled in the lamp housing 1, a closed power cavity 3 assembled and connected to the lamp housing 1, and a power supply part 4 assembled in the power cavity 3, the light source part 2 comprises a plurality of lamp beads 21, a plurality of optical lenses 22 arranged corresponding to the plurality of lamp beads 21, and a lamp board 23 for mounting the plurality of lamp beads 21 and the plurality of optical lenses 22, characterized in that: the lamp housing 1 is provided with a comb-shaped heat dissipation structure 5 exposed between the lamp housing 1 and the power cavity 3 on a side surface close to the power cavity 3, and the comb-shaped heat dissipation structure 5 abuts against the outer surface of the power cavity 3;

[0047] The power cavity 3 comprises a power cavity cover 31 and a power cavity shell 32 which are assembled and connected. The power cavity cover 31 abuts against the comb-shaped heat dissipation structure 5. The power supply part 4 is fixedly assembled on the inner surface of the power cavity shell 32.

[0048] The lamp housing 1 is provided with a honeycomb grid 6, an optical film 7, a circular hole grid 8 and a light-transmitting plate 9 in sequence on a side away from the power cavity 3. The honeycomb grid 6, the optical film 7 and the circular hole grid 8 are all assembled and fixed to the lamp housing 1. The light-transmitting plate 9 is sealed at the light outlet of the lamp housing 1. The circular hole grid 8 is provided with a plurality of grid circular holes 81 corresponding to the plurality of optical lenses 22. The lamp housing 1 and the comb-shaped heat dissipation structure 5 may be integrally formed or fixedly assembled and connected.

[0049] On one hand, the light source part is installed in the lamp housing, and the power supply part is installed in the closed power supply cavity. The lamp housing is provided with a comb-shaped heat dissipation structure on one side surface close to the power supply cavity, and the comb-shaped heat dissipation structure is in contact with the power supply cavity cover. The power supply part is fixedly installed on the inner surface of the power supply cavity housing, and the comb-shaped heat dissipation structure is exposed and arranged between the lamp housing and the power supply cavity. The isolated double-cavity structure design is adopted to achieve thermal and electrical isolation in a real sense, so that the heat in the lamp housing and the heat in the power supply cavity are conducted through the comb-shaped heat dissipation structure and dissipated to the external air in time, thereby improving the heat dissipation effect of the floodlight and improving the working performance of the electronic components of the floodlight;

[0050] On the other hand of the present embodiment, the lamp housing of the present application is provided with a honeycomb grille, an optical film, a circular hole grille and a light-transmitting plate in sequence on the side away from the power cavity, and is assembled and fixed to the lamp housing. The light-transmitting plate is sealed at the light outlet of the lamp housing, and a number of grid circular holes corresponding to a number of optical lenses are opened on the circular hole grille. The honeycomb grille design can control glare and improve lighting comfort. The optical film design is used to improve the distribution of light and lighting effects, solve the light spot problem, widen the illumination angle, and reduce blue light overflow. The circular hole grille design reduces light loss, has good energy-saving effects, extends the service life of the lamp, and improves the beam effect of the floodlight as a whole, which is green and energy-saving.

[0051] like Figures 7 and 8 As shown, in the above embodiment, the comb-shaped heat dissipation structure 5 further comprises a plurality of heat dissipation fins 51 arranged in parallel and at intervals, the power cavity cover 31 is provided with a reinforcing rib 311 on one side surface close to the heat dissipation fin 51, and the heat dissipation fin 51 is provided with a clearance groove 511 capable of accommodating the reinforcing rib 311 at a position corresponding to the reinforcing rib 311;

[0052] In this embodiment, the comb-shaped heat dissipation structure is designed to be a plurality of heat dissipation fins arranged in parallel and at intervals, which can be beneficial to heat conduction and heat dissipation. In addition, the reinforcing rib design on the power cavity cover can effectively prevent the power cavity cover from deforming when subjected to heat and stress. By providing a clearance groove at the position of the heat dissipation fin corresponding to the reinforcement rib, the reinforcement rib can be accommodated in the clearance groove, thereby saving assembly space.

[0053] like Fig.12 and Fig.13 As shown, in the above embodiment, a part of the heat dissipation fins 51 is further provided with a first convex point 512 at one end close to the power cavity cover 31, and a part of the heat dissipation fins 51 abuts against the power cavity cover 31 through the first convex point 512, so that a first heat dissipation gap 513 is provided between a part of the heat dissipation fins 51 and the power cavity cover 31, and a second heat dissipation gap 514 is provided between another part of the heat dissipation fins 51 and the power cavity cover 31;

[0054] This embodiment adopts a design in which the first protrusion abuts against the power cavity cover, so that a first heat dissipation gap is left between a portion of the heat dissipation fins and the power cavity cover. In addition, a second heat dissipation gap is left between another portion of the heat dissipation fins and the power cavity cover, which is beneficial to air convection, enables the heat around the heat dissipation fins to be gathered, improves the heat circulation effect, and accelerates the conduction heat dissipation process.

[0055] like Fig.14 As shown, in the above embodiment, the reinforcing rib 311 is further provided with a second protrusion 3111, and the power cavity cover 31 abuts against the clearance groove 511 through the second protrusion 3111, so that a third heat dissipation gap 515 is provided between the reinforcing rib 311 and the clearance groove 511;

[0056] In this embodiment, the second protrusion is designed to abut against the give-way groove, so that a third heat dissipation gap is left between the reinforcing rib and the give-way groove. When the reinforcing rib is accommodated in the give-way groove of the heat dissipation fin, heat can flow through the third heat dissipation gap, thereby improving the heat dissipation effect.

[0057] like Figure 1 and Figure 7As shown, in the above embodiment, the plurality of optical lenses 22 are truncated cone-shaped lenses, the side of the plurality of optical lenses 22 close to the light board 23 is the upper bottom surface, and the side of the plurality of optical lenses 22 away from the light board 23 is the lower bottom surface;

[0058] In this embodiment, the optical lens adopts a truncated cone structure design, so that the optical lens can better focus the light beam emitted by the lamp bead, improve the light intensity of the light beam and the precise adjustment and control of the light beam angle.

[0059] like Figure 1 , Figures 4 to 6 As shown, in the above embodiment, the circular holes 81 of the grille are further formed with a hollow columnar body 82 from the circular hole grille 8 side to the optical film 7 side, and a plurality of optical tooth grooves 821 are opened on the inner circumference of the hollow columnar body 82 along the length direction of the hollow columnar body 82;

[0060] In this embodiment, the use of grille circular holes and an integrally formed hollow column can increase effective light output, prevent glare, and provide a uniform and soft lighting effect, while the optical tooth groove design on the inner circumference of the hollow column can eliminate excess light spots.

[0061] like Fig.11 As shown, in the above embodiment, the power cavity cover 31 is further provided with a female threading groove 312 on one side close to the lamp housing 1, and the lamp housing 1 is provided with a male threading groove 11 at a position corresponding to the female threading groove 312, a sealing ring 313 is laid in the female threading groove 312, the male threading groove 11 is matched and inserted into the female threading groove 312, and the end of the male threading groove 11 abuts against the sealing ring 313;

[0062] In the present embodiment, a matching plug-in design of a female wire threading trough, a male wire threading trough and a sealing ring is adopted. On the one hand, the signal power line can be passed through the lamp housing and the power cavity, and the sealing ring has a sealing effect between the housings. On the other hand, when assembling the lamp housing and the power cavity, the plug-in matching of the female wire threading trough and the male wire threading trough makes the structure more stable during the assembly process, which plays a role in positioning and plugging.

[0063] like Figures 1 to 3 and Figure 7 As shown, the above embodiment further includes a U-shaped adjustment bracket 100, the U-shaped adjustment bracket 100 is connected to the power cavity 3 through a hexagon socket countersunk screw 101, and angle scales 102 are provided on both sides of the opening end of the U-shaped adjustment bracket 100, and the U-shaped adjustment bracket 100 is provided with a mounting hole 103 on the opposite side of the opening end;

[0064] In this embodiment, the U-shaped adjustment bracket and the mounting hole design on the opposite side of its open end can facilitate the installation and fixation of the floodlight to the external platform on site, while the angle scale design on both sides of the open end of the U-shaped adjustment bracket allows the floodlight to more flexibly adjust the projection angle.

[0065] like Figure 1 , Figure 3 and Figure 7 As shown, in the above embodiment, the comb-shaped heat dissipation structure 5, the power cavity cover 31 and the power cavity shell 32 are assembled and connected by the hexagonal spring washer combination screws 104, and the power cavity shell 32 is provided with a breathing plug 321 and a waterproof joint 322 connecting the inside and the outside.

[0066] In the present embodiment, the comb-shaped heat dissipation structure, the power cavity cover and the power cavity shell are fastened and assembled by means of a combination of hexagonal spring washers and screws, and the comb-shaped heat dissipation structure is connected to the lamp shell, thereby ensuring the structural stability of the heat dissipation between the comb-shaped heat dissipation structure and the power cavity and the lamp shell. In addition, the design of the breathing plug and the waterproof joint can allow only air but no water to enter the interior of the floodlight, and the interior of the floodlight is completely isolated from the outside world, thereby achieving a waterproof and sealing effect.

[0067] like Figures 1 to 3 As shown, in the above embodiment, the light-transmitting plate 9 is further made of tempered glass, and can be specifically made of silk-screen tempered glass;

[0068] In this embodiment, the light-transmitting plate is made of tempered glass, which has high strength, good thermal stability, and is not easy to break.

[0069] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure made using the contents of the specification and drawings of the present invention, or directly or indirectly used in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A high-efficiency heat dissipation type floodlight, comprising a lamp housing (1), a light source unit (2) assembled in the lamp housing (1), a closed power supply cavity (3) assembled and connected to the lamp housing (1), and a power supply unit (4) assembled in the power supply cavity (3), wherein the light source unit (2) comprises a plurality of lamp beads (21), a plurality of optical lenses (22) arranged corresponding to the plurality of lamp beads (21), and a lamp board (23) for mounting the plurality of lamp beads (21) and the plurality of optical lenses (22), characterized in that: The lamp housing (1) is provided with a comb-shaped heat dissipation structure (5) exposed between the lamp housing (1) and the power cavity (3) on a surface of one side close to the power cavity (3), and the comb-shaped heat dissipation structure (5) is in contact with the outer surface of the power cavity (3); The power cavity (3) comprises a power cavity cover (31) and a power cavity shell (32) which are connected in a closed assembly, the power cavity cover (31) abuts against the comb-shaped heat dissipation structure (5), and the power supply unit (4) is fixedly assembled on the inner surface of the power cavity shell (32); The lamp housing (1) is provided with a honeycomb grille (6), an optical film (7), a circular hole grille (8) and a light-transmitting plate (9) in sequence on a side away from the power cavity (3); the honeycomb grille (6), the optical film (7) and the circular hole grille (8) are all assembled and fixed to the lamp housing (1); the light-transmitting plate (9) is sealed at the light outlet of the lamp housing (1); and the circular hole grille (8) is provided with a plurality of grille circular holes (81) corresponding to the plurality of optical lenses (22).

2. The high-efficiency heat dissipation floodlight according to claim 1, characterized in that: The comb-shaped heat dissipation structure (5) comprises a plurality of heat dissipation fins (51) arranged in parallel and at intervals; the power cavity cover (31) is provided with reinforcing ribs (311) on a surface of one side close to the heat dissipation fins (51); and the heat dissipation fins (51) are provided with recesses (511) capable of accommodating the reinforcing ribs (311) at positions corresponding to the reinforcing ribs (311).

3. The high-efficiency heat dissipation floodlight according to claim 2, characterized in that: A portion of the heat dissipation fins (51) is provided with a first protrusion (512) at one end close to the power cavity cover (31), and a portion of the heat dissipation fins (51) abuts against the power cavity cover (31) via the first protrusion (512), so that a first heat dissipation gap (513) is provided between a portion of the heat dissipation fins (51) and the power cavity cover (31), and a second heat dissipation gap (514) is provided between another portion of the heat dissipation fins (51) and the power cavity cover (31).

4. The high-efficiency heat dissipation floodlight according to claim 2, characterized in that: The reinforcing rib (311) is provided with a second protrusion (3111), and the power cavity cover (31) abuts against the clearance groove (511) via the second protrusion (3111), so that a third heat dissipation gap (515) is provided between the reinforcing rib (311) and the clearance groove (511).

5. The high-efficiency heat dissipation floodlight according to claim 1, characterized in that: The plurality of optical lenses (22) are truncated cone-shaped lenses; the side of the plurality of optical lenses (22) close to the light board (23) is an upper bottom surface; the side of the plurality of optical lenses (22) away from the light board (23) is a lower bottom surface.

6. The high-efficiency heat dissipation floodlight according to claim 1, characterized in that: The circular holes (81) of the grille are integrally formed with a hollow column (82) from the circular hole grille (8) side to the optical film (7) side, and a plurality of optical tooth grooves (821) are provided on the inner circumference of the hollow column (82) along the length direction of the hollow column (82).

7. The high-efficiency heat dissipation floodlight according to claim 1, characterized in that: The power cavity cover (31) is provided with a female wire threading groove (312) on a side close to the lamp housing (1); the lamp housing (1) is provided with a male wire threading groove (11) at a position corresponding to the female wire threading groove (312); a layer of sealing ring (313) is laid in the female wire threading groove (312); the male wire threading groove (11) is matched and inserted into the female wire threading groove (312); and the end of the male wire threading groove (11) abuts against the sealing ring (313).

8. The high-efficiency heat dissipation floodlight according to claim 1, characterized in that: It also comprises a U-shaped adjustment bracket (100), wherein the U-shaped adjustment bracket (100) is connected to the power supply cavity (3) via a hexagon socket countersunk screw (101), angle scales (102) are provided on both sides of the opening end of the U-shaped adjustment bracket (100), and a mounting hole (103) is provided on the opposite side of the opening end of the U-shaped adjustment bracket (100).

9. The high-efficiency heat dissipation floodlight according to claim 1, characterized in that: The comb-shaped heat dissipation structure (5), the power cavity cover (31) and the power cavity housing (32) are assembled and connected via hexagon socket spring washer combination screws (104), and the power cavity housing (32) is provided with a breathing plug (321) and a waterproof joint (322) for communicating the inside and the outside.

10. The high-efficiency heat dissipation floodlight according to claim 1, characterized in that: The light-transmitting plate (9) is made of tempered glass.

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