Projection lamp with efficient heat dissipation function

Abstract

The utility model discloses an efficient heat dissipation project lamp which comprises a lamp shell, a lamp cover and a heat dissipation device. The light source plate is connected to the groove bottom of the mounting groove, and a copper coating is arranged on the bottom side of the light source plate; a plurality of lamp beads are connected to the bottom side of the light source plate; the light emitting assembly is connected to the interior of the mounting groove and located on the top side of the light source plate; the heat dissipation structure is connected to the position, right opposite to the mounting groove, of the bottom side of the lamp shell, heat transfer of the multiple lamp beads is accelerated, the heat dissipation efficiency can be improved under the condition that the heat dissipation structure is not changed, the whole LED lamp is controlled to be in a proper size, and mounting and transporting convenience is improved.

Description

Technical Field

[0001] The utility model relates to a lamp, in particular to a floodlight with high-efficiency heat dissipation. Background Art

[0002] A floodlight is generally equipped with a single light source or multiple light sources. When multiple light sources are installed inside, although the light intensity of the floodlight can be improved, the heat will also increase. Therefore, the floodlight needs to be cooled in time. The current heat dissipation method is generally to install a fan on the back of the floodlight, which can achieve air cooling for the floodlight. However, this will increase the overall volume of the floodlight and increase its weight, resulting in problems such as difficulty in installation and transportation. Therefore, there is an urgent need for a floodlight with higher heat dissipation efficiency and a suitable volume. Utility Model Content

[0003] The utility model aims to provide a floodlight with high efficiency in heat dissipation, so as to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The solution of the utility model to solve the technical problem is:

[0005] A floodlight with high efficiency in heat dissipation comprises: a lamp housing with a mounting groove formed therein; a light source board connected to the bottom of the mounting groove, the bottom side of the light source board being provided with a copper coating; a plurality of lamp beads connected to the bottom side of the light source board; a light output component connected to the mounting groove and located on the top side of the light source board; and a heat dissipation structure connected to a position of the bottom side of the lamp housing directly facing the mounting groove.

[0006] This technical solution has at least the following beneficial effects: an installation groove for installing structures such as a light source board and a light output component is formed inside the lamp housing, the light source board is connected to the bottom of the installation groove, and the heat dissipation structure is installed on the bottom side of the lamp housing opposite to the light source board. When working, a plurality of lamp beads on the light source board emit light outward through the light output component, and the heat generated by the plurality of lamp beads is transferred to the light source board. Since a copper coating is provided on the bottom side of the light source board, the copper coating can take into account the high pressure resistance of the light source board, and the excellent thermal conductivity of the copper coating can be used to evenly transfer the heat from the plurality of lamp beads to the light source board, and then to the heat dissipation structure on the bottom side of the lamp housing, and finally the heat is dissipated outward through the heat dissipation structure. In this way, by accelerating the heat transfer generated by the plurality of lamp beads, the heat dissipation efficiency can be improved without changing the heat dissipation structure, which is beneficial to control the overall volume to be appropriate and improve the convenience of installation and transportation.

[0007] As a further improvement of the above technical solution, the thickness of the copper coating is between 80 micrometers and 120 micrometers. The copper coating within this thickness range can form a heat-conducting medium of sufficient thickness, thereby ensuring the heat conduction efficiency of the lamp beads.

[0008] As a further improvement of the above technical solution, the lamp housing includes an outer frame and a substrate, the inner periphery of the outer frame is provided with a hole penetrating in the up-down direction, the substrate is connected to the inner side of the outer frame, the substrate is recessed downward to form the mounting groove, the light output component is connected to the top side of the substrate, and the heat dissipation structure is connected to the bottom side of the substrate. The outer frame is enclosed on the side of the substrate to form a support and protection for the entire floodlight, and the mounting groove is directly recessed downward on the substrate to form a mounting groove, the light source board is installed at the bottom of the mounting groove, and then the light output component is connected to the top side of the substrate to cover the inside of the mounting groove, and the heat dissipation structure is correspondingly connected to the bottom side of the substrate facing the mounting groove. At this time, the copper coating on the bottom side of the light source board transfers the heat evenly to the substrate, and the substrate itself has a large coverage area, which can conveniently and directly conduct the heat outward, and the partial position provided with the heat dissipation structure can further improve the heat dissipation efficiency of the substrate.

[0009] As a further improvement of the above technical solution, the heat dissipation structure includes fins, and a plurality of the fins are connected at intervals in the horizontal direction on the bottom side of the substrate. The plurality of fins arranged at intervals can increase the contact area with the air, thereby increasing the heat conduction area, and the interval position between two adjacent fins can form a gap for air flow to pass through, and when the air passes through, the heat can be quickly taken away, thereby improving the heat dissipation efficiency.

[0010] As a further improvement of the above technical solution, the light emitting assembly includes a reflector and a light-transmitting plate. The positions of the reflector facing the multiple lamp beads are all recessed downward to form a reflector. The bottom ends of the multiple reflectors are all against the light source board, and the light-transmitting plate is connected to the top side of the reflector. Multiple reflectors are directly recessed on the reflector. After the multiple reflectors are respectively facing the multiple light beads on the light source board, the reflector is placed on the light source board. At this time, the bottom ends of the multiple reflectors are all against the light source board, and the lamp beads are correspondingly located in the reflector. Then, the light-transmitting plate is covered on the top side of the reflector. In this way, multiple reflectors for focusing light on the lamp beads are directly formed in one reflector. When assembling, the entire reflector can be directly installed, thereby improving the overall assembly efficiency.

[0011] As a further improvement of the above technical solution, the inner side of the outer frame is provided with an escape groove extending in the up-down direction, a pressing fastener is inserted in the escape groove, a pressing sheet is bent on the top side of the light-transmitting plate, and the bottom side of the pressing fastener is clamped on the bottom side of the substrate. An escape groove is provided on the inner side of the outer frame to avoid the installation of the pressing fastener. When the pressing fastener is installed, the pressing fastener can be passed through the escape groove, and the bottom side of the pressing fastener can be clamped on the bottom side of the substrate, while the pressing sheet on the top side of the pressing fastener can press down the light-transmitting plate, so that the light-transmitting plate and the reflective plate are pressed and fixed on the substrate, improving the convenience of overall assembly.

[0012] As a further improvement of the above technical solution, a sealing strip is provided on the top side of the substrate around the position of the mounting groove, and the bottom side of the light-transmitting plate abuts against the sealing strip. The light-transmitting plate abuts against the sealing strip on the top side of the substrate, and the sealing strip can improve the sealing performance of the connection between the light-transmitting plate and the substrate, making it difficult for water vapor to invade the mounting groove.

[0013] As a further improvement of the above technical solution, the bottom of the base plate located at the installation groove is recessed to form a storage groove. The storage groove forms a deeper installation groove, which can further increase the storage space in the up and down directions for installing electrical components such as control panels, thereby further improving the overall practicality.

[0014] As a further improvement of the above technical solution, the inner side of the outer frame is connected with reinforcing ribs extending in the up-down direction. The reinforcing ribs can improve the structural stability of the outer frame, making the outer frame less likely to bend and deform.

[0015] As a further improvement of the above technical solution, a bracket is connected to the outer side of the outer frame. The bracket can be used to support the whole body so as to facilitate the placement of the whole body, and can also be connected to the structure of the peripheral through the bracket, so as to facilitate the connection and fixation of the whole body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following is a brief description of the drawings required for the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present utility model, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0017] Figure 1 It is the first stereogram of the utility model.

[0018] Figure 2 It is a front view of the utility model.

[0019] Figure 3 yes Figure 2 Schematic diagram of the AA cross-section structure.

[0020] Figure 4 It is a second stereogram of the present utility model.

[0021] In the attached drawings: 110 - outer frame, 111 - reinforcing ribs, 120 - base plate, 121 - mounting groove, 122 - storage groove, 200 - light source board, 300 - lamp beads, 400 - fins, 510 - reflector, 511 - reflector, 520 - light-transmitting plate, 530 - fastener, 600 - bracket. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] Reference Figures 1 to 4 A floodlight with high efficiency in heat dissipation comprises a lamp housing, a light source board 200, lamp beads 300, a light output component and a heat dissipation structure, wherein a mounting groove 121 is formed inside the lamp housing, the light source board 200 is connected to the bottom of the mounting groove 121, a copper coating is provided on the bottom side of the light source board 200, a plurality of lamp beads 300 are connected to the bottom side of the light source board 200, in actual application, three lamp beads 300 can be arranged along a 120 degree circle, three lamp beads 300 form a lamp group, and a plurality of groups can be evenly arranged on the light source board 200, the light output component is connected to the mounting groove 121, the light output component is located on the top side of the light source board 200, and the heat dissipation structure is connected to the bottom side of the lamp housing facing the mounting groove 121.

[0027] From the above, it can be known that an installation groove 121 for installing structures such as the light source board 200 and the light emitting component is formed inside the lamp housing. The light source board 200 is connected to the bottom of the installation groove 121, and the heat dissipation structure is installed at a position on the bottom side of the lamp housing opposite to the light source board 200. When working, the multiple lamp beads 300 on the light source board 200 emit light outward through the light emitting component, and the heat generated by the multiple lamp beads 300 is transferred to the light source board 200. Since a copper coating is provided on the bottom side of the light source board 200, the copper coating can take into account the high pressure resistance of the light source board 200, and the excellent thermal conductivity of the copper coating can be used to evenly transfer the heat from the multiple lamp beads 300 to the light source board 200, and then to the heat dissipation structure on the bottom side of the lamp housing, and finally the heat is dissipated outward through the heat dissipation structure. In this way, by accelerating the heat transfer generated by the multiple lamp beads 300, the heat dissipation efficiency can be improved without changing the heat dissipation structure, which is beneficial to control the overall volume to be appropriate and improve the convenience of installation and transportation.

[0028] When a copper coating is provided on the bottom side of the light source board 200, pure copper powder can be selected as a raw material, and the particle size of the powder is between 8 microns and 50 microns. The cold spraying process is used to spray on the bottom surface of the light source board 200. Before spraying, the light source board 200 is first polished with sandpaper to remove the surface oxide film, and then an ultrasonic cleaning machine is used, and acetone is used to degrease and clean the light source board 200 for 10 minutes, and then a high-pressure and high-purity compressed gas, such as nitrogen or helium, is used. The gas temperature is 600-800°C, the gas pressure is 3-6MPa, and the spraying distance is 20-40mm. The light source board 200 is sprayed, and the thickness of the copper coating is between 80 microns and 120 microns. For example, the thickness of the copper coating is 100 microns. The copper coating within this thickness range can form a heat-conducting medium of sufficient thickness, thereby ensuring the heat conduction efficiency of the lamp bead 300, and compared with the traditional light source board 200, the thermal resistance of the light source board 200 can be reduced by 48%.

[0029] As a further embodiment of the lamp housing structure, the lamp housing includes an outer frame 110 and a substrate 120. The outer frame 110 is provided with a hole extending through the outer frame 110 in the up and down directions. The substrate 120 is connected to the outer frame 110. The substrate 120 is recessed downward to form the mounting groove 121. The light output component is connected to the top side of the substrate 120, and the heat dissipation structure is connected to the bottom side of the substrate 120. The outer frame 110 is enclosed on the side of the substrate 120 to form a support and protection for the entire floodlight. A mounting groove 121 is formed directly on the substrate 120 by being recessed downward. The light source board 200 is installed at the bottom of the mounting groove 121, and then the light output component is connected to the top side of the substrate 120 to cover the inside of the mounting groove 121. The heat dissipation structure is correspondingly connected to the bottom side of the substrate 120 facing the mounting groove 121. At this time, the copper coating on the bottom side of the light source board 200 transfers the heat evenly to the substrate 120. The substrate 120 itself has a large coverage area, which can conveniently and directly conduct heat outward. In addition, some positions where the heat dissipation structure is provided can further improve the heat dissipation efficiency of the substrate 120.

[0030] The heat dissipation structure is mainly used to improve the heat dissipation efficiency of the substrate 120. In this embodiment, the heat dissipation structure includes fins 400, and a plurality of fins 400 are connected at intervals in the horizontal direction on the bottom side of the substrate 120. The plurality of fins 400 arranged at intervals can increase the contact area with the air, thereby increasing the heat conduction area, and the interval position between two adjacent fins 400 can form a gap for air flow to pass through, and when the air passes through, the heat can be quickly taken away, thereby improving the heat dissipation efficiency.

[0031] The light-emitting component is mainly used to focus the lamp beads 300 and then irradiate outward to increase the brightness of the light. For example, a reflective cup is installed on the light source board 200 at a position corresponding to each lamp bead 300, so as to focus the lamp bead 300. However, when there are multiple lamp beads 300 on the light source board 200, a large number of reflective cups need to be installed, and the operation is more troublesome. In order to improve the installation efficiency, in this embodiment, the light-emitting component includes a reflective plate 510 and a light-transmitting plate 520. The reflective plate 510 is recessed downward at the positions opposite to the multiple lamp beads 300 to form a reflector 511. The bottom ends of the multiple reflectors 511 are all against the light source board 200, and the light-transmitting plate 520 is connected to the top side of the reflective plate 510. A plurality of reflectors 511 are formed directly on the reflector 510 by being recessed. After the plurality of reflectors 511 are respectively aligned with the plurality of light beads on the light source board 200, the reflector 510 is placed on the light source board 200. At this time, the bottom ends of the plurality of reflectors 511 are all against the light source board 200, and the lamp beads 300 are correspondingly located in the reflectors 511. Then the light-transmitting board 520 is covered on the top side of the reflector 510. In this way, a plurality of reflectors 511 for focusing light on the lamp beads 300 are directly formed in one reflector 510. During assembly, the entire reflector 510 can be directly installed, thereby improving the overall assembly efficiency.

[0032] In the above embodiment, for the installation of the light-transmitting plate 520 and the reflective plate 510, a structure that cooperates with the outer frame 110 can be directly set on the side edges of the light-transmitting plate 520 and the reflective plate 510 to relatively fix the light-transmitting plate 520 and the reflective plate 510 in the outer frame 110, or a connecting piece, such as a screw, a rivet, etc., can be driven into the reflective plate 510 or the light-transmitting plate 520 to relatively fix the reflective plate 510 and the light-transmitting plate 520 in the outer frame 110. In the present embodiment, an avoidance groove extending in the up-down direction is set on the inner side of the outer frame 110, and a pressing fastener 530 is inserted in the avoidance groove, and a pressing sheet is bent on the top side of the pressing fastener 530 toward the top side of the light-transmitting plate 520, and the bottom side of the pressing fastener 530 is clamped to the bottom side of the substrate 120. An avoidance groove is provided on the inner side of the outer frame 110 to avoid the installation of the pressing fastener 530. When the pressing fastener 530 is installed, the pressing fastener 530 can be passed through the avoidance groove, and the bottom side of the pressing fastener 530 can be clamped on the bottom side of the substrate 120, and the pressing piece on the top side of the pressing fastener 530 can press down the light-transmitting plate 520. In this way, the light-transmitting plate 520 and the reflective plate 510 are pressed and fixed on the substrate 120, thereby improving the convenience of overall assembly.

[0033] The pressing piece 530 is an insert extending in the up-down direction. The bottom of the insert is bent toward the substrate 120 to form an inclined section, and an opening is punched out on the inclined section. A card extending away from the inclined section is connected to the bottom side of the opening. The card and the inclined section form a Y-shaped clamping structure. The top of the insert is bent toward the middle of the light-transmitting plate 520 to form a pressing piece. When in use, the inclined section is inserted downward into the avoidance groove. The card is elastically deformed toward the opening when passing through the light-emitting plate, the reflective plate 510 and the substrate 120. The reflective plate is elastically reset when passing over the bottom side of the substrate 120, thereby clamping to the bottom side of the substrate 120. At this time, the pressing piece also abuts against the top side of the light-emitting plate, thereby pressing the light-emitting plate, the reflective plate 510 and the substrate 120 in the up-down direction.

[0034] When installing, the light emitting plate can be directly abutted against the reflective plate 510 or the substrate 120 to stabilize the placement of the light emitting plate. In the present embodiment, a sealing strip is provided on the top side of the substrate 120 around the position of the mounting groove 121, and the bottom side of the light-transmitting plate 520 abuts against the sealing strip. The light-transmitting plate 520 abuts against the sealing strip on the top side of the substrate 120. The sealing strip can improve the connection sealing between the light-transmitting plate 520 and the substrate 120, making it difficult for water vapor to invade the mounting groove 121. In practical applications, in order to facilitate the installation of the sealing strip, a strip groove can be provided on the top side of the substrate 120 around the mounting groove 121, and the sealing strip is installed in the strip groove, thereby improving the stability of the sealing strip when it is installed. In addition, two strip grooves can be provided, and sealing strips are installed in both strip grooves to further improve the sealing effect of the light emitting plate when it is installed.

[0035] In practical applications, it is also necessary to install electrical components such as an electric controller in the housing. To facilitate installation, in this embodiment, the base plate 120 is located at the bottom of the installation groove 121 and is recessed to form a receiving groove 122. The receiving groove 122 forms a deeper installation groove 121, which can further increase the receiving space in the up and down directions for installing electrical components such as a control panel, thereby further improving the overall practicality.

[0036] In some embodiments, the inner side of the outer frame 110 is connected with a reinforcing rib 111 extending in the up-down direction, and the number of the reinforcing rib 111 can be multiple, and the multiple reinforcing ribs 111 are arranged at intervals inside the outer frame 110. The reinforcing rib 111 can improve the structural stability of the outer frame 110, so that the outer frame 110 is not easy to bend and deform.

[0037] In some embodiments, a bracket 600 is connected to the outside of the outer frame 110. The bracket 600 can be used to support the whole body, so as to facilitate the placement of the whole body, and can also be connected to the structure of the external device through the bracket 600, so as to facilitate the connection and fixation of the whole body. In actual application, the two sides of the bracket 600 are respectively rotatably connected to the two sides of the outer frame 110, so as to facilitate the adjustment of the irradiation angle of the floodlight, and holes are also opened on the bracket 600, and screws or bolts and other connecting parts can be driven into the holes to connect and fix the bracket 600 to the structural parts of the external device.

[0038] The preferred implementation modes of the present invention are specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A floodlight with high efficiency heat dissipation, characterized by: include: A lamp housing having a mounting groove (121) formed therein; A light source board (200) connected to the bottom of the mounting groove (121), the bottom side of the light source board (200) being provided with a copper coating; A plurality of lamp beads (300) are connected to the bottom side of the light source plate (200); A light output component, connected to the mounting groove (121) and located on the top side of the light source panel (200); The heat dissipation structure is connected to a position on the bottom side of the lamp housing directly facing the mounting groove (121).

2. The high-efficiency heat dissipation floodlight according to claim 1, characterized in that: The copper coating has a thickness of 80 micrometers to 120 micrometers.

3. The high-efficiency heat dissipation floodlight according to claim 1, characterized in that: The lamp housing comprises an outer frame (110) and a substrate (120); the inner periphery of the outer frame (110) is provided with a hole penetrating in the up-down direction; the substrate (120) is connected inside the outer frame (110); the substrate (120) is recessed downward to form the mounting groove (121); the light output component is connected to the top side of the substrate (120); and the heat dissipation structure is connected to the bottom side of the substrate (120).

4. The high-efficiency heat dissipation floodlight according to claim 3, characterized in that: The heat dissipation structure comprises fins (400), and a plurality of the fins (400) are connected at intervals along a horizontal direction on the bottom side of the substrate (120).

5. The high-efficiency heat dissipation floodlight according to claim 3, characterized in that: The light output component comprises a reflective plate (510) and a light-transmitting plate (520); the positions of the reflective plate (510) facing the plurality of lamp beads (300) are all recessed downward to form a reflector (511); the bottom ends of the plurality of reflectors (511) are all against the light source plate (200); and the light-transmitting plate (520) is connected to the top side of the reflective plate (510).

6. The high-efficiency heat dissipation floodlight according to claim 5, characterized in that: The inner side of the outer frame (110) is provided with an escape groove extending in the up-down direction, a pressing fastener (530) is inserted into the escape groove, a pressing sheet is bent on the top side of the pressing fastener (530) toward the top side of the light-transmitting plate (520), and the bottom side of the pressing fastener (530) is clamped on the bottom side of the substrate (120).

7. The high-efficiency heat dissipation floodlight according to claim 5, characterized in that: A sealing strip is provided on the top side of the substrate (120) around the mounting groove (121), and the bottom side of the light-transmitting plate (520) abuts against the sealing strip.

8. The high-efficiency heat dissipation floodlight according to claim 3, characterized in that: The base plate (120) is located at the bottom of the installation groove (121) and is recessed to form a receiving groove (122).

9. The high-efficiency heat dissipation floodlight according to claim 3, characterized in that: A reinforcing rib (111) extending in the up-down direction is connected to the inner side of the outer frame (110).

10. The high-efficiency heat dissipation floodlight according to claim 3, characterized in that: A bracket (600) is connected to the outer side of the outer frame (110).

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