LED projection lamp

Abstract

The utility model particularly relates to an LED projection lamp which comprises a lamp shell and a transparent mask, the lamp shell and the transparent mask are fixedly matched at the open end of the lamp shell, a containing cavity is formed in the lamp shell, an LED lamp panel is arranged in the containing cavity, and the LED lamp panel is arranged in the containing cavity. The two sides, in the first horizontal direction A, of the LED lamp panel are bent downwards, a first arch face is formed on the lower end face of the LED lamp panel, the containing cavity is provided with a second arch face matched with the first arch face in shape, and the first arch face is matched with the second arch face in an abutting mode. The LED lamp panel abuts against the bottom of the containing cavity in an arch face attaching mode, abutting is more stable, when the projection lamp is impacted by strong shock, force borne by the first arch face can be diffused to the two sides, stress is prevented from being concentrated on a local position of the first arch face, and the anti-seismic performance of the structure is improved. And under the condition of the same projection area, compared with a plane structure, the arch surface structure has the advantages that the illumination angle range of LED projection on the arch surface structure is enlarged, and the projection effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of floodlights, in particular to an LED floodlight. Background Art

[0002] A floodlight is a lamp with a higher illuminance on the designated illuminated surface than the surrounding environment. It is also called a spotlight. Usually, it can be aimed in any direction and has a structure that is not affected by climatic conditions. It is mainly used in large-scale work sites and mines, building outlines, stadiums, overpasses, monuments, parks and flower beds. Therefore, almost all large-area lighting fixtures used outdoors can be regarded as floodlights. The angle of the output beam of a floodlight can be wide or narrow, ranging from 0° to 180°. The one with a particularly narrow beam is called a searchlight.

[0003] The floodlight includes a lamp housing and a transparent mask. A receiving cavity is provided in the lamp housing, and an LED lamp board is installed in the receiving cavity. The existing LED lamp board adopts a flat lamp board, and the lamp board is flatly fitted with the bottom of the receiving cavity. When the floodlight is subjected to a strong earthquake impact, the lamp board is easily damaged due to stress concentration, which affects the service life of the floodlight. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide an LED floodlight.

[0005] The technical solution adopted by the utility model is as follows: an LED floodlight, comprising a lamp housing and a transparent mask, wherein the lamp housing and the transparent mask are fixedly matched at the open end of the lamp housing, a receiving cavity is provided in the lamp housing, and an LED lamp board is provided in the receiving cavity,

[0006] Both sides of the LED lamp panel in the first horizontal direction A are bent downward to form a first arch surface at its lower end surface, and the accommodating cavity has a second arch surface that matches the shape of the first arch surface, and the first arch surface is abutted against the second arch surface.

[0007] Preferably, two sides of the first arch surface in the first horizontal direction A are in an axisymmetric structure.

[0008] Preferably, a receiving convex portion extends upward from the bottom of the accommodating cavity, an upper end surface of the receiving convex portion forms the second arch surface, and a first heat dissipation groove is formed between the outer peripheral wall of the receiving convex portion and the inner peripheral wall of the accommodating cavity.

[0009] Preferably, the four corners of the receiving protrusion extend toward the inner peripheral wall of the accommodating cavity to form an extended reinforcement portion connected to the inner peripheral wall of the accommodating cavity, and the first heat dissipation groove is located between two adjacent extended reinforcement portions.

[0010] Preferably, the upper end of the receiving protrusion is provided with a second heat dissipation groove extending along a horizontal second direction B perpendicular to the horizontal first direction A, and a plurality of the second heat dissipation grooves are provided.

[0011] Preferably, the width of the cross section of the second heat dissipation slot in the second horizontal direction B decreases from top to bottom.

[0012] Preferably, at least one second heat dissipation slot is connected to the first heat dissipation slot at one end thereof close to the first heat dissipation slot, and a heat conduction slot is connected thereto.

[0013] Preferably, the width of the heat conducting groove increases from an end connected to the second heat dissipating groove to an end connected to the first heat dissipating groove.

[0014] Preferably, a dip switch electrically connected to the LED light board is arranged in the first heat dissipation groove, the dip switch has a switch handle, and a connecting screw hole is arranged on the lamp housing corresponding to the switch handle, and a waterproof nut is connected to the connecting screw hole.

[0015] Preferably, the upper end surface of the transparent mask is in an arched shape.

[0016] The beneficial effects of the utility model are as follows: the LED lamp panel is in close contact with the bottom of the accommodating cavity in the form of an arch surface, and the abutment is more stable. When the floodlight is hit by a strong earthquake, the force exerted on the first arch surface can be dispersed to both sides, avoiding stress concentration on a local part of the first arch surface, thereby improving the seismic performance of the structure; and under the condition of the same projection area, the arch surface structure increases the illumination angle range of the LED thereon compared to the plane structure, thereby achieving a better projection effect; at the same time, the arch surface structure is streamlined, thereby improving the overall aesthetics of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0018] Figure 1 This is a three-dimensional structural diagram of an embodiment of the utility model;

[0019] Figure 2 This is an exploded structural diagram of an embodiment of the utility model;

[0020] Figure 3 This is a top view of the structure of an embodiment of the utility model;

[0021] Figure 4 This is a top view of the structure of the lamp housing of the embodiment of the utility model;

[0022] Figure 5 For this utility model Figure 3 Cross-section at mid-CC;

[0023] Figure 6 for Figure 5 A magnified view of the structure at D in the middle;

[0024] In the figure, 1. lamp housing; 2. transparent mask; 3. accommodating cavity; 4. LED light board; 5. DIP switch; 11. connecting screw hole; 12. waterproof nut; 31. second arch surface; 32. receiving convex part; 33. first heat dissipation groove; 34. extended reinforcement part; 35. second heat dissipation groove; 36. heat conduction groove; 41. first arch surface; 51. switch handle. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0026] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0027] The directions and positions mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., are only for reference to the directions or positions of the drawings. Therefore, the directions and positions used are used to explain and understand the present invention, but not to limit the scope of protection of the present invention.

[0028] like Figures 1 to 6 As shown in the embodiment of the utility model, an LED floodlight comprises a lamp housing 1 and a transparent mask 2, wherein the lamp housing 1 and the transparent mask 2 are fixedly matched at the open end of the lamp housing 1, and a receiving cavity 3 is provided in the lamp housing 1, and an LED lamp board 4 is provided in the receiving cavity 3.

[0029] The two sides of the LED lamp board 4 in the horizontal first direction A are bent downward to form a first arch surface 41 at its lower end surface. The accommodating cavity 3 has a second arch surface 31 that matches the shape of the first arch surface 41 , and the first arch surface 41 abuts against the second arch surface 31 .

[0030] Through this arrangement, the LED lamp panel and the bottom of the accommodating cavity are in an arched fit and abutment with each other, and the abutment is more stable. When the floodlight is hit by a strong earthquake, the force exerted on the first arched surface can be dispersed to both sides, avoiding stress concentration on a local part of the first arched surface, thereby improving the seismic performance of the structure; and under the condition of the same projection area, the arched surface structure increases the illumination angle range of the LED thereon compared to the plane structure, thereby achieving a better projection effect; at the same time, the arched surface structure is streamlined, thereby improving the overall aesthetics of the product.

[0031] Two sides of the first arch surface 41 in the first horizontal direction A are axially symmetrical.

[0032] Through this arrangement, the first arch surface has a self-centering effect, and its position is not easily moved due to vibration or light impact caused by use, thereby improving the stability of the overall structure.

[0033] A receiving convex portion 32 extends upward from the bottom of the accommodating cavity 3 , and the upper end surface of the receiving convex portion 32 forms the second arch surface 31 . A first heat dissipation groove 33 is formed between the outer peripheral wall of the receiving convex portion 32 and the inner peripheral wall of the accommodating cavity 3 .

[0034] Through this arrangement, the second arch surface is ensured to be stably supported by the first arch surface while taking into account the heat dissipation effect, thereby further improving the service life of the product.

[0035] Extended reinforcement portions 34 connected to the inner peripheral wall of the accommodating cavity 3 are extended from four corners of the receiving protrusion 32 toward the inner peripheral wall of the accommodating cavity 3 , and the first heat dissipation groove 33 is located between two adjacent extended reinforcement portions 34 .

[0036] Through this arrangement, since the four corners of the LED light board are most vulnerable to impact, the extended reinforcement part extends to the place where the top surface and the bottom surfaces of the four corners of the LED light board are in contact, which protects the four corners while minimizing the area interference with the first heat dissipation groove, further taking into account the bearing stability and heat dissipation effect.

[0037] The upper end of the receiving protrusion 32 is provided with a second heat dissipation groove 35 extending along a horizontal second direction B perpendicular to the horizontal first direction A, and a plurality of the second heat dissipation grooves 35 are provided.

[0038] With this arrangement, the second heat dissipation groove extends along the second horizontal direction B, avoiding the direction of stress release of the first arch surface, and further taking into account both the bearing stability and the heat dissipation effect.

[0039] The width of the cross section of the second heat dissipation slot 35 in the second horizontal direction B decreases from top to bottom.

[0040] Through this arrangement, the top of the second heat dissipation slot connected to the LED light board has a larger heat dissipation aperture, which ensures the heat dissipation effect. At the same time, the width decreases from top to bottom to ensure that the heat dissipation slot does not affect the receiving strength of the receiving convex part. In this embodiment, the cross section is specifically an axisymmetric inverted triangle.

[0041] A heat conducting groove 36 is connected between one end of at least one second heat dissipation groove 35 close to the first heat dissipation groove 33 and the first heat dissipation groove 33 .

[0042] Through this arrangement, the heat-conducting groove can better diffuse the heat from the first arch surface from the second heat dissipation groove to the first heat dissipation groove, thereby reducing the heat collection between the first arch surface and the second arch surface.

[0043] The width of the heat conducting groove 36 increases from the end connected to the second heat dissipating groove 35 to the end connected to the first heat dissipating groove 33 .

[0044] Through this configuration, the heat conducting groove can better diffuse the heat in the second heat dissipating groove to the first heat dissipating groove.

[0045] A dip switch 5 electrically connected to the LED lamp board 4 is arranged in the first heat dissipation slot 33 . The dip switch 5 has a switch handle 51 . A connecting screw hole 11 is arranged on the lamp housing 1 corresponding to the switch handle 51 . A waterproof nut 12 is connected to the connecting screw hole 11 .

[0046] Through this setting, the multi-color adjustment of the LED light can be achieved by turning the switch handle, and the waterproof nut protects the dial switch. How the dial switch adjusts the LED color belongs to the existing technology and will not be elaborated here.

[0047] The upper end surface of the transparent mask 2 is in an arched shape.

[0048] Through this arrangement, the aesthetics of the transparent mask and the unity of the overall structure of the product are improved.

[0049] A person skilled in the art can understand that all or part of the steps in the above-mentioned embodiment method can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, such as ROM / RAM, disk, CD-ROM, etc.

[0050] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. An LED floodlight, comprising a lamp housing (1) and a transparent cover (2), wherein the lamp housing (1) and the transparent cover (2) are fixedly matched at the open end of the lamp housing (1), wherein a receiving cavity (3) is provided in the lamp housing (1), wherein an LED lamp board (4) is provided in the receiving cavity (3), and wherein: The two sides of the LED lamp panel (4) in a first horizontal direction (A) are bent downward to form a first arch surface (41) on the lower end surface thereof, and the accommodating cavity (3) has a second arch surface (31) that is adapted in shape to the first arch surface (41), and the first arch surface (41) is in abutment with the second arch surface (31).

2. The LED floodlight according to claim 1, characterized in that: The first arch surface (41) has two sides in a first horizontal direction (A) that are in an axisymmetric structure.

3. The LED floodlight according to claim 1, characterized in that: A receiving convex portion (32) extends upward from the bottom of the accommodating cavity (3), the upper end surface of the receiving convex portion (32) forms the second arch surface (31), and a first heat dissipation groove (33) is formed between the outer peripheral wall of the receiving convex portion (32) and the inner peripheral wall of the accommodating cavity (3).

4. The LED floodlight according to claim 3, characterized in that: Extended reinforcement portions (34) connected to the inner peripheral wall of the accommodating cavity (3) extend from the four corners of the receiving convex portion (32) toward the inner peripheral wall of the accommodating cavity (3), and the first heat dissipation groove (33) is located between two adjacent extended reinforcement portions (34).

5. The LED floodlight according to claim 3, characterized in that: The upper end of the receiving convex portion (32) is provided with a second heat dissipation groove (35) extending along a horizontal second direction (B) perpendicular to the horizontal first direction (A), and a plurality of the second heat dissipation grooves (35) are provided.

6. The LED floodlight according to claim 5, characterized in that: The width of the cross section of the second heat dissipation groove (35) in the second horizontal direction (B) decreases from top to bottom.

7. The LED floodlight according to claim 5, characterized in that: A heat conduction groove (36) is connected between one end of at least one second heat dissipation groove (35) close to the first heat dissipation groove (33) and the first heat dissipation groove (33), the heat conduction groove (36) connecting the two.

8. The LED floodlight according to claim 7, characterized in that: The width of the heat conduction groove (36) increases from an end connected to the second heat dissipation groove (35) to an end connected to the first heat dissipation groove (33).

9. The LED floodlight according to claim 3, characterized in that: A dip switch (5) electrically connected to the LED lamp panel (4) is arranged in the first heat dissipation groove (33), the dip switch (5) having a switch handle (51), a connecting screw hole (11) corresponding to the switch handle (51) is arranged on the lamp housing (1), and a waterproof nut (12) is connected to the connecting screw hole (11).

10. The LED floodlight according to claim 1, characterized in that: The upper end surface of the transparent mask (2) is in the shape of an arch.

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