Waterproof spotlight

Abstract

The utility model discloses a waterproof projection lamp, wherein the waterproof projection lamp comprises a light transmission plate and a circuit board, the circuit board is connected with the light transmission plate, the circuit board is provided with a light emitting element, and the irradiation direction of the light emitting element is towards the light transmission plate. A sealing structure is arranged between the circuit board and the light transmission plate, the sealing structure is arranged around the light emitting element to seal the internal space surrounded by the circuit board and the light transmission plate, the sealing structure can block the invasion of external water vapor, effectively prevent the water vapor from penetrating into the internal space to erode the core components such as the circuit board and the light emitting element, and ensure the long-term stable operation of the projection lamp. Moreover, the circuit board can directly contact the external environment for heat conduction without using a shell, the heat conduction efficiency of the projection lamp can be improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lighting equipment technology, and in particular to a waterproof floodlight. Background Technology

[0002] LED floodlights are mainly used in large-area work sites, building outlines, stadiums, overpasses, monuments, parks, and flower beds. Therefore, for outdoor LED floodlights, waterproofing and heat dissipation directly affect their lifespan and safety.

[0003] In related technologies, floodlights include structures such as a housing, circuit board, light-transmitting plate, and sealing ring. The housing protects non-light-emitting components such as the drive circuit and connection structure. Outdoor floodlights typically have a sealed housing after assembly, directly preventing external liquid water such as rainwater, dew, and splashes from entering the floodlight. However, assembling the housing requires additional steps, reducing production efficiency and increasing production costs. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a waterproof floodlight that eliminates the need for a casing, ensuring waterproof performance while reducing production costs.

[0005] The waterproof floodlight according to this utility model includes:

[0006] Translucent panel;

[0007] A circuit board is connected to the light-transmitting plate. The circuit board is provided with a light-emitting element. The light-emitting element is directed towards the light-transmitting plate. A sealing structure is provided between the circuit board and the light-transmitting plate. The sealing structure is arranged around the light-emitting element to seal the internal space enclosed by the circuit board and the light-transmitting plate.

[0008] The waterproof floodlight according to this utility model has at least the following beneficial effects: A light-emitting element is disposed on the side of the circuit board facing the light-transmitting plate. A sealing structure is provided between the edges of the circuit board and the light-transmitting plate, sealing the internal space enclosed by the circuit board and the light-transmitting plate. This effectively prevents external moisture from intruding and corroding the circuit board, light-emitting element, and other core components, ensuring the long-term stable operation of the floodlight. Furthermore, no outer casing is required; the circuit board can directly contact the outside environment for heat conduction, improving the heat conduction efficiency of the floodlight and reducing production costs.

[0009] According to some embodiments of the present invention, the waterproof floodlight has a first connecting hole on the edge of the light-transmitting plate and a second connecting hole on the edge of the circuit board. The circuit board and the light-transmitting plate are fixed together by fasteners located in the first and second connecting holes.

[0010] According to some embodiments of the present invention, the waterproof floodlight has a mounting groove on the side of the light-transmitting plate facing the circuit board, and the sealing structure is installed in the mounting groove.

[0011] According to some embodiments of the present invention, the waterproof floodlight has a mounting groove that extends in a meandering manner and then closes. The extension path of the mounting groove avoids the first connecting hole inward, so as to form a continuous sealing path between the circuit board and the light-transmitting plate.

[0012] According to some embodiments of the present invention, the waterproof floodlight has a light-transmitting plate with multiple convex lenses arranged in an array, and multiple light-emitting elements, each corresponding to one of the convex lenses.

[0013] According to some embodiments of the present invention, the waterproof floodlight has the light-transmitting plate and the convex lens integrally formed.

[0014] According to some embodiments of the waterproof floodlight of this utility model, a power supply housing frame is also provided on the side of the circuit board away from the light-transmitting plate. The power supply housing frame houses a driving power supply, which is electrically connected to the light-emitting element to drive the light-emitting element to emit light.

[0015] According to some embodiments of the waterproof floodlight of this utility model, the circuit board is connected to the interface of the driving power supply via a waterproof connector.

[0016] According to some embodiments of the present invention, the waterproof floodlight further includes a support frame, and the power supply housing frame is provided with connecting ears on both sides, and the two ends of the support frame are hinged to the connecting ears.

[0017] According to some embodiments of the waterproof floodlight of this utility model, the sealing structure is a silicone rubber ring.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1This is an exploded view of the waterproof floodlight according to an embodiment of this utility model;

[0021] Figure 2 This is another exploded view of the waterproof floodlight according to an embodiment of this utility model;

[0022] Figure 3 for Figure 1 The diagram shows the structure of the light-transmitting plate.

[0023] Explanation of icon numbers:

[0024] Circuit board 100; second connecting hole 110; light-emitting element 120;

[0025] Light-transmitting plate 200; first connecting hole 210; convex lens 220; mounting groove 230. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] Floodlights are high-intensity lighting devices primarily used for illuminating large areas such as work sites, mines, stadiums, and building outlines. They provide concentrated, long-range light to meet the needs of large-scale outdoor lighting. The floodlight housing protects its internal core components. Internal circuit boards and LED chips are sensitive to the external environment; the housing prevents dust and impurities from entering, avoids damage from mechanical impacts, and provides structural support for waterproofing and heat dissipation. The housing forms a physical barrier through its sealed structure, directly blocking rainwater and dew from entering. Combined with sealing rings and other components, this enhances the sealing effect and prevents impurities from entering, reducing the corrosive effect of water and impurities and ensuring the internal environment remains dry. However, the sealed structure of the housing hinders heat dissipation, leading to increased internal temperature, accelerated component aging, increased manufacturing costs, and the added weight of the metal housing, making installation more difficult.

[0032] Therefore, such as Figures 1 to 3 As shown, this utility model discloses a waterproof floodlight, comprising: a light-transmitting plate 200 and a circuit board 100. The circuit board 100 is connected to the light-transmitting plate 200, and the size of the circuit board 100 is adapted to the size of the light-transmitting plate 200. The circuit board 100 is provided with a light-emitting element 120, which is an LED lamp bead. The illumination direction of the light-emitting element 120 is towards the light-transmitting plate 200. A sealing structure is provided between the circuit board 100 and the light-transmitting plate 200 to seal the internal space enclosed by the circuit board 100 and the light-transmitting plate 200. The sealed internal space enclosed by the circuit board 100 and the light-transmitting plate 200 can prevent the intrusion of external moisture, effectively preventing moisture from seeping into the interior and corroding core components such as the circuit board 100 and the light-emitting element 120. The floodlight's waterproof rating can reach IP67. Furthermore, no outer shell is required; the circuit board 100 can directly contact the outside environment for heat conduction, which can improve the heat conduction efficiency of the floodlight, reduce production costs, and ensure the long-term stable operation of the floodlight.

[0033] In some embodiments of this utility model, reference is made to Figures 1 to 3As shown, the edge of the light-transmitting plate 200 is provided with a first connecting hole 210, and the edge of the circuit board 100 is provided with a second connecting hole 110. The diameter of the first connecting hole 210 is the same as the diameter of the second connecting hole 110. The circuit board 100 and the light-transmitting plate 200 are fixed together by fasteners located in the first connecting hole 210 and the second connecting hole 110. The fasteners can be stainless steel screws, combinations of screws and nuts, or self-tapping screws with washers. Stainless steel has excellent corrosion resistance, and even in humid or dusty outdoor environments, it can prevent fastener failure due to rust, ensuring the long-term reliability of the connection.

[0034] According to some embodiments of the present invention, the waterproof floodlight has a sealing structure of a silicone rubber ring. When the circuit board 100 and the light-transmitting plate 200 are fixed by fasteners, the silicone rubber ring will be uniformly squeezed and produce elastic deformation, tightly filling the gap between the mounting groove 230 and the light-transmitting plate 200. The two sides of the silicone rubber ring are tightly attached to the surfaces of the circuit board 100 and the light-transmitting plate 200, respectively, forming a continuous sealing ring, which effectively prevents water vapor, dust and other impurities from entering the internal space.

[0035] According to some embodiments of the waterproof floodlight of this utility model, the sealing structure is achieved by filling the joint between the circuit board 100 and the light-transmitting plate 200 with sealant to form a continuous adhesive layer, thus achieving waterproofing. For example, sealant is first evenly applied to the edge or joint surface of the circuit board 100. The sealant can be silicone sealant or polyurethane sealant, etc. The sealant needs to have good weather resistance, high and low temperature resistance, and adhesion, and should not easily age or crack due to ultraviolet radiation. After application, the circuit board 100 and the light-transmitting plate 200 are aligned and fastened together with fasteners. At this time, the sealant will fill the gaps under pressure, and excess sealant will be squeezed out from the edge. After the adhesive layer is completely cured, a seamless waterproof barrier is formed, completely isolating the internal space from the outside.

[0036] According to some embodiments of the present invention, the waterproof floodlight has a sealing structure consisting of a slot and a plug-in surface. The light-transmitting plate 200 has a slot surrounding its edge, and the edge of the circuit board 100 has a plug-in surface. The edge of the circuit board 100 may also have a guide surface with an angle. The depth of the slot is slightly less than the thickness of the edge of the circuit board 100. When the circuit board 100 is inserted into the slot, the inner wall of the slot will generate compressive stress on the plug-in surface of the edge of the circuit board 100. An interference fit is formed between the edge of the circuit board 100 and the slot of the light-transmitting plate 200, so that the contact surfaces of the two are tightly fitted, forming a physical seal.

[0037] In some embodiments of this utility model, reference is made to Figures 1 to 3As shown, a mounting groove 230 is provided on the side of the light-transmitting plate 200 facing the circuit board 100. The mounting groove 230 is located at the edge of the light-transmitting plate 200, and the sealing structure is installed in the mounting groove 230. The corners of the mounting groove 230 are rounded and form a closed loop structure to ensure that the sealing range can completely cover the mating surfaces of the circuit board 100 and the light-transmitting plate 200.

[0038] The first connecting hole 210 is the location where the circuit board 100 and the light-transmitting plate 200 are connected by fasteners. If the mounting groove 230 directly passes through or is close to the connecting hole, the silicone rubber ring may break or be deformed by the fasteners at this location, creating a weak point in the seal. Therefore, in some embodiments of this utility model, referring to... Figures 1 to 3 As shown, the mounting groove 230 extends and closes in a meandering manner, and the extension path of the mounting groove 230 avoids the first connecting hole 210 inward, so as to form a continuous sealing path between the circuit board 100 and the light-transmitting plate 200. The meandering extension makes the sealing path fit the contour of the edge of the circuit board 100 more closely. Within a limited space, it ensures that the silicone rubber ring has sufficient length to form an effective seal, and does not encroach on the installation space of core components such as the light-emitting element 120 due to excessive path length. Thus, it achieves effective use of space as a whole and has reliable sealing performance.

[0039] Specifically, in some embodiments of this utility model, the length and width of the mounting groove 230 correspond to the size of the silicone rubber ring, and the depth of the mounting groove 230 is slightly less than the thickness of the silicone rubber ring. In this way, after the rubber strip is embedded, the top will be higher than the groove by a certain height, and it can extend evenly in all directions when under pressure, so that the upper and lower surfaces of the rubber strip are in close contact with the light-transmitting plate 200 and the bottom of the groove, respectively, which can effectively block the intrusion of water vapor from multiple directions.

[0040] In some embodiments of this utility model, reference is made to Figures 1 to 3 As shown, the light-transmitting plate 200 is equipped with multiple convex lenses 220 arranged in an array. There are multiple light-emitting elements 120, and the array arrangement of the convex lenses 220 matches the arrangement of the light-emitting elements 120, with a one-to-one correspondence between the light-emitting elements 120 and the convex lenses 220. The convex lenses 220 have a light-focusing effect, converging the divergent light emitted by the light-emitting elements 120 into parallel or concentrated beams, significantly improving light intensity and illumination distance. It is understood that the array form can be rectangular, circular, or honeycomb, etc., depending on actual needs. For example, on a rectangular circuit board 100, the convex lenses 220 are evenly arranged in rows and columns, and the corresponding light-emitting elements 120 also have the same array layout, so that the light is converged to form a regular illumination area, avoiding uneven brightness.

[0041] In some embodiments of this utility model, reference is made to Figures 1 to 3As shown, the convex lens 220 and the light-transmitting plate 200 are integrally formed. This integral structure further enhances the waterproof effect. The convex lens 220 and the light-transmitting plate 200 form a continuous whole, preventing water vapor from penetrating the interior through the connection surface between the convex lens 220 and the light-transmitting plate 200, thus enhancing the floodlight's waterproof capability and enabling it to withstand harsh environments such as heavy rain and spray.

[0042] In some embodiments of this utility model, the convex lens 220 can also be installed in a patch or embedded in a reserved hole in the light-transmitting plate 200. The connection between the convex lens 220 and the light-transmitting plate 200 needs to be sealed, such as by applying sealant, to prevent moisture from seeping in from the installation gap and to ensure the safety of the internal components.

[0043] In some embodiments of this utility model (not shown in the figures), a power supply housing frame is also provided on the side of the circuit board 100 away from the light-transmitting plate 200. The power supply housing frame has a rectangular structure and houses the driving power supply. The depth and internal space of the power supply housing frame match the size of the driving power supply to ensure that the driving power supply can be tightly embedded without significant shaking. The driving power supply is electrically connected to the light-emitting element 120 to drive the light-emitting element 120 to emit light.

[0044] In some embodiments of this utility model (not shown in the figures), the circuit board 100 is connected to the interface of the drive power supply via a waterproof connector. The wires connecting the circuit board 100 to the drive power supply can be led out through pre-set wire holes. Waterproof connectors are provided at the wire holes to achieve a seal between the wires and the wire holes, preventing rainwater from entering the internal space between the circuit board 100 and the light-transmitting plate 200 from the wire holes, thus ensuring the internal seal of the floodlight and enhancing its waterproof capability.

[0045] In some embodiments of this utility model (not shown in the figures), the waterproof floodlight also includes a support frame. The support frame has a U-shaped structure, and connecting ears are provided on both sides of the power supply housing frame. The two ends of the support frame are hinged to the connecting ears. The two ends of the support frame and the connecting ears can be hinged by pins or bolts. The pin-type hinge uses a stepped metal pin, which passes through the shaft hole of the connecting ear and the support frame, and is fixed by a cotter pin or snap ring to prevent the pin from falling off. This method has low rotational resistance and facilitates quick adjustment of the floodlight's illumination angle. The bolt-type hinge is achieved by bolts and nuts. Tightening the nuts increases the friction at the hinge, fixing the floodlight at a specific angle, which is suitable for scenarios that require maintaining a fixed illumination direction for a long time. The hinge structure allows for multi-angle adjustment. The illumination angle of the floodlight can be flexibly adjusted within the range of 0° to 90° along the hinge axis. By changing the relative angle between the support frame and the light-transmitting plate 200, both wide-area horizontal illumination and focused illumination of a specific area can be achieved.

[0046] In some embodiments of this invention, the circuit board 100 uses an aluminum substrate and achieves waterproofing through surface anodizing. The anodizing process forms a dense oxide film on the surface of the aluminum substrate using an electrochemical method. This oxide film has extremely high chemical stability, is insoluble in water, and does not easily react with acids or alkalis. It effectively prevents moisture, dust, and other impurities from directly contacting the metal surface of the aluminum substrate, preventing corrosion at the source and enhancing the waterproofing capability of the floodlight.

[0047] In some embodiments of this utility model, a waterproof coating is applied to the surface of the circuit board 100. The waterproof coating can be an organosilicon waterproof coating or a polyurethane waterproof coating. The waterproof coating can enhance the sealing performance of the circuit board 100. The strong sealing performance can effectively prevent water vapor from seeping into the circuit board 100 through tiny gaps.

[0048] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A waterproof floodlight, characterized in that, include: Translucent panel; A circuit board is connected to the light-transmitting plate. The circuit board is provided with a light-emitting element. The light-emitting element is directed towards the light-transmitting plate. A sealing structure is provided between the circuit board and the light-transmitting plate. The sealing structure is arranged around the light-emitting element to seal the internal space enclosed by the circuit board and the light-transmitting plate.

2. The waterproof floodlight according to claim 1, characterized in that: The light-transmitting plate has a first connecting hole on its edge, and the circuit board has a second connecting hole on its edge. The circuit board and the light-transmitting plate are fixed together by fasteners located at the first and second connecting holes.

3. The waterproof floodlight according to claim 2, characterized in that: The light-transmitting plate has a mounting groove on the side facing the circuit board, and the sealing structure is installed in the mounting groove.

4. The waterproof floodlight according to claim 3, characterized in that: The mounting groove extends in a meandering manner and closes, with its extension path avoiding the first connecting hole inward, so as to form a continuous sealed path between the circuit board and the light-transmitting plate.

5. The waterproof floodlight according to claim 1, characterized in that: The light-transmitting plate is provided with multiple convex lenses, and the multiple convex lenses are arranged in an array. There are multiple light-emitting elements, and each light-emitting element corresponds to one of the convex lenses.

6. The waterproof floodlight according to claim 5, characterized in that: The light-transmitting plate and the convex lens are integrally formed.

7. The waterproof floodlight according to claim 1, characterized in that: The circuit board is also provided with a power supply housing frame on the side opposite to the light-transmitting plate. The power supply housing frame houses a driving power supply, which is electrically connected to the light-emitting element to drive the light-emitting element to emit light.

8. The waterproof floodlight according to claim 7, characterized in that: The circuit board is connected to the interface of the drive power supply via a waterproof connector.

9. The waterproof floodlight according to claim 7, characterized in that: The waterproof floodlight also includes a support frame, and the power supply housing frame has connecting ears on both sides, with the two ends of the support frame hinged to the connecting ears.

10. The waterproof floodlight according to claim 1, characterized in that: The sealing structure is a silicone rubber ring.

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