Line lamp capable of emitting light uniformly

Abstract

The line lamp comprises a lamp body, a lampshade, two light source plates and two reflectors, an opening is formed in one side of the lamp body, the lampshade is arranged on the opening, the two light source plates are symmetrically arranged in the lamp body, an included angle is formed between the plane where the light source plates are located and the plane where the opening is located, and each light source plate comprises a plurality of LED patch lamp beads. The LED patch lamp beads are non-monochromatic lamp beads, the two reflectors are symmetrically arranged in the lamp body, one light source plate corresponds to one reflector, and the light reflecting faces of the reflectors face the corresponding light source plates and reflect light emitted by the light source plates to the lampshade. According to the line lamp capable of emitting light evenly, the width of the whole lamp can be effectively reduced, and the installation requirement of a small-size installation groove in a building installation face is met; and the light rays emitted by the two light source plates are emitted after being reflected, so that uniform light emission is realized, and the overall lighting effect and the total brightness are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of linear lamps, and in particular to a linear lamp with uniform light emission. Background Art

[0002] Line lights are lighting devices specially used to outline the edges of objects, buildings or other structures. They can not only highlight the shape of the illuminated object, but also enhance the sense of space and visual effects. They are suitable for various buildings, indoor and outdoor local or contour lighting.

[0003] The existing linear lights have two-color, three-color or four-color LED lamp beads in the light source board to achieve multi-color change control. In order to meet the functions of multi-stage control and real-time feedback of the working status of the linear lights, it is necessary to increase the structure of the lamp body to match the large-sized light source board so that the light source board can be placed with corresponding functional electronic components. Since the light source board and the light-emitting surface of the lampshade of the current linear lights are arranged in parallel, the width of the lamp body is designed to be wider to match the large-sized light source board. Therefore, the multifunctional linear lights cannot be made into small-sized specifications, and it is difficult to meet the installation requirements of small-sized lamp mounting grooves on the building installation surface; and the light on the light source board is directly emitted from the light-emitting surface of the lampshade after being reflected by the corresponding lens, resulting in uneven light emission and poor overall lighting effect.

[0004] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the invention

[0005] In view of the above-mentioned deficiencies of the prior art, an object of the present invention is to provide a linear lamp with uniform light emission, aiming to solve the technical problems of the prior art that the lamp body is relatively wide and the light emission is uneven.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A linear lamp with uniform light emission comprises a lamp body, a lampshade, two light source boards and two reflectors, wherein an opening is provided on one side of the lamp body, the lampshade is provided on the opening, the two light source boards are symmetrically arranged in the lamp body, and an angle is formed between the plane where the light source boards are located and the plane where the openings are located, the light source boards comprise a plurality of LED patch lamp beads, the LED patch lamp beads are non-monochromatic lamp beads, the two reflectors are symmetrically arranged in the lamp body, one light source board corresponds to one reflector, the reflective surface of the reflector faces the corresponding light source board, and the light emitted by the light source board is reflected onto the lampshade.

[0008] Furthermore, the light source board also includes a substrate and a lens, a plurality of LED SMD lamp beads are arranged on the substrate along the length direction of the substrate, and one lens covers one LED SMD lamp bead accordingly.

[0009] Furthermore, two groups of first mounting grooves are arranged in the lamp body, and one light source board is correspondingly arranged in one group of first mounting grooves.

[0010] Furthermore, the reflective sheet is provided with a first curved surface which is recessed inwards, and the first curved surface faces the light source board.

[0011] Furthermore, the lampshade is a solid structure, and two symmetrical light-transmitting parts are provided at the lower end of the lampshade. A groove for avoiding the light source board is opened on one side of each light-transmitting part, and a second arc surface is provided on the side of the light-transmitting part away from the groove, and a reflective sheet is provided on the second arc surface.

[0012] Furthermore, the lampshade is a thin-walled structure, and two symmetrically arranged arc plates are provided in the lamp body, and a reflective sheet is correspondingly arranged on the arc plates.

[0013] Furthermore, the lampshade is provided with second mounting grooves on both sides, and the two second mounting grooves are respectively plugged into the two sides of the opening; the two sides of the lampshade are flush with the two sides of the lamp body.

[0014] Furthermore, a wire groove is provided on a side of the lamp body away from the opening.

[0015] Beneficial effects: (1) Two light source boards are symmetrically arranged in a lamp body, which can accommodate more LED chip lamp beads to improve the overall lighting effect and total brightness of the linear lamp; (2) The two light source boards are arranged parallel or inclined to one side of the long side of the lamp body, and the lampshade is installed on the short side of the lamp body. Through the corresponding reflector, light is emitted on the short side of the lamp body, which can meet the installation requirements of larger light source boards and small-sized installation grooves on the building installation surface; (3) Most of the light emitted by the LED chip lamp beads is reflected by the lens and the reflector for the second time and then emitted to the light-emitting surface of the lampshade. Another small part of the light is reflected by the lens and directly emitted to the light-emitting surface of the lampshade. The light from the two light source boards mixes with each other when emitting light, thereby making the light emission of the linear lamp more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural diagram of a first embodiment of a linear light with uniform light emission provided by the present invention;

[0017] Figure 2 A side sectional view of a first embodiment of the linear lamp with uniform light emission provided by the present invention;

[0018] Figure 3 A schematic diagram of light emission of a first embodiment of a linear lamp with uniform light emission provided by the present invention;

[0019] Figure 4 A structural diagram of a second embodiment of the uniformly luminous linear lamp provided by the present invention;

[0020] Figure 5 A side sectional view of a second embodiment of the linear lamp with uniform light emission provided by the present invention;

[0021] Figure 6 A schematic diagram of light emission of a second embodiment of the linear lamp with uniform light emission provided by the present invention;

[0022] Figure 7 A side sectional view of a third embodiment of the linear lamp with uniform light emission provided by the present invention;

[0023] Figure 8 A schematic diagram of light emission of a third embodiment of the linear lamp with uniform light emission provided by the present invention;

[0024] Fig. 9 A side sectional view of a fourth embodiment of the linear lamp with uniform light emission provided by the present invention;

[0025] Fig.10 A schematic diagram of light emission of a fourth embodiment of the linear lamp with uniform light emission provided by the present invention;

[0026] Fig.11 A side sectional view of a fifth embodiment of the linear light with uniform light emission provided by the present invention;

[0027] Fig.12 A schematic diagram of light emission of a fifth embodiment of the uniformly luminous linear lamp provided by the present invention.

[0028] Figure numerals: lamp body 1, opening 11, first mounting groove 12, arc plate 13, wire groove 14, middle plate 15, lampshade 2, light-transmitting portion 21, groove 22, second arc surface 23, second mounting groove 24, light source board 3, LED patch lamp bead 31, substrate 32, lens 33, reflector 4, first arc surface 41. DETAILED DESCRIPTION

[0029] The present invention provides a linear light with uniform light emission. To make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0030] See also Figures 1 to 12As shown, the present invention provides a linear lamp with uniform light emission, comprising a lamp body 1, a lampshade 2, two light source boards 3 and two reflectors 4, wherein an opening 11 is provided on one side of the lamp body 1, the lampshade 2 is provided on the opening 11, the two light source boards 3 are symmetrically arranged in the lamp body 1, and an angle is formed between the plane where the light source boards 3 are located and the plane where the opening 11 is located, the light source board 3 comprises a plurality of LED patch lamp beads 31, the LED patch lamp beads 31 are non-monochromatic lamp beads, the two reflectors 4 are symmetrically arranged in the lamp body 1, one light source board 3 corresponds to one reflector 4, the reflective surface of the reflector 4 faces the corresponding light source board 3, and the light emitted by the light source board 3 is reflected onto the lampshade 2.

[0031] The cross section of the lamp body 1 is a rectangle, and the opening 11 is located on one side of the short side of the rectangle. Two symmetrically arranged light source boards 3 are installed in the lamp body 1, and there is an angle between them and the plane where the opening 11 is located, that is, the light source board 3 is tilted or vertically arranged, so that the lamp body 1 can install a larger light source board 3 to meet the requirement that the light source board 3 can place multiple functional components; the lampshade 2 is installed on the opening 11, and the light emitted from the light source board 3 is emitted to the lampshade 2 through the reflector 4, and then emitted through the lampshade 2. The light is emitted from one side of the short side of the lamp body 1, which can effectively reduce the width of the lamp body 1 to meet the installation requirements of the small-sized installation groove on the building installation surface. In addition, after the light emitted by the light source board 3 is reflected by the reflector 4, the light is more uniform, and the first arc surface 41 of the reflector 4 faces the light source board 3, which can collect and converge the light emitted from the light source board 3 in all directions, thereby improving the light effect of the whole lamp.

[0032] It should be noted that two light source boards 3 are arranged in one lamp body 1. Compared with the single light source board 3 in the prior art, more LED chip lamp beads 31 can be placed in the lamp body 1 to improve the overall lighting effect and total brightness of the linear lamp.

[0033] In the above, the material of the reflective sheet 4 can be: reflective aluminum foil, reflective aluminum plate, reflective paper, reflective PET sheet, reflective PC sheet, etc. The curvature of the reflective sheet 4 should be designed according to the actual application to achieve the reflection of most of the light emitted by the light source panel 3 to the light emitting surface of the lampshade 2.

[0034] In a preferred embodiment, see Figure 2 , 5The light source board 3 also includes a substrate 32 and a lens 33. A plurality of LED patch lamp beads 31 are arranged on the substrate 32 along the length direction of the substrate 32, and one lens 33 covers one LED patch lamp bead 31. The substrate 32 extends along the length direction of the lamp body 1, and all LED patch lamp beads 31 are welded on the substrate 32. All lenses 33 are fixed on the substrate 32 in an adhesive manner, and one lens 33 is set corresponding to one LED patch lamp bead 31. By setting the lens 33, the light-emitting angle of the LED patch lamp bead 31 can be adjusted so that most of the light is emitted to the reflector 4. The reflector 4 performs secondary reflection on the light of the LED patch lamp bead 31, so that the light of multiple color temperatures and wavelengths such as RGBW light source, RGB light source, and dual color temperature light source are mixed more fully and evenly, so as to achieve better light mixing and color mixing effects of the line lamp.

[0035] It should be noted that most of the light from the light source board 3 is emitted from one side of the lampshade 2 after being reflected by the reflector 4, while a small part of the light is directly emitted to the other side of the lampshade 2. The small parts of light on the two light source boards 3 are mixed with each other when emitting light, thereby making the overall light emission of the linear lamp more uniform.

[0036] In a preferred embodiment, see Figure 2 , 5 The lamp body 1 is provided with two groups of first mounting grooves 12, and one light source board 3 is correspondingly provided in one group of first mounting grooves 12. Through the above arrangement, the light source board 3 is stably installed in the lamp body 1.

[0037] In the above, the lamp body 1 is an aluminum profile, which has certain rigidity and structural strength to ensure the structural stability of the linear lamp. The light source board 3 is installed against the inner wall of the lamp body 1, which can increase the contact area between the light source board 3 and the lamp body 1, thereby increasing the heat dissipation speed.

[0038] In a preferred embodiment, see Figure 2 , 5 , 7, 9, the reflector 4 is provided with a first curved surface 41 that is recessed inwards, and the first curved surface 41 faces the light source board 3. That is, the light source board 3 is installed vertically, and the angle between the plane where the light source board 3 is located and the plane where the opening 11 is located is 90°. The larger light source board 3 can be matched by increasing the width of the long side of the lamp body 1, and there is no need to increase the width of the short side of the lamp body 1, so that the whole lamp can be made into a small size or an extremely small size, which can meet the installation requirements of the small-sized installation groove on the building installation surface. The first curved surface 41 is provided on the reflector 4, which can reflect the light emitted by the light source board 3 to the light-emitting surface of the lampshade 2 to a greater extent, avoiding the loss of light.

[0039] In some other embodiments, see Fig.11 , 12The reflector 4 is a plane, that is, the light source board 3 and the reflector 4 are both inclined. Similarly, a larger light source board 3 can be installed, and the reflector 4 reflects the light emitted by the light source board 3 to the light emitting surface of the lampshade 2.

[0040] When the two light source boards 3 are arranged facing each other, the LED patch lamp beads 31 on the two light source boards 3 are arranged facing each other. The two light source boards 3 are respectively arranged on one side of the long side of the lamp body 1, and the two reflectors 4 are located in the middle of the lamp body 1.

[0041] In one embodiment, see Figure 2 , 3 The lampshade 2 is a solid structure, and two symmetrical light-transmitting parts 21 are provided at the lower end of the lampshade 2. A groove 22 for avoiding the light source board 3 is opened on one side of each light-transmitting part 21, and a second arc surface 23 is provided on the side of the light-transmitting part 21 away from the groove 22, and the reflector 4 is provided on the second arc surface 23. Specifically, the two grooves 22 are respectively located on the side where the two light-transmitting parts 21 are away from each other, and the two second arc surfaces 23 are respectively located on the side where the two light-transmitting parts 21 are close to each other. The two light source boards 3 are correspondingly located in the two grooves 22, and most of the light emitted by each light source board 3 passes through the corresponding light-transmitting part 21 to the reflector 4. The reflector 4 reflects most of the light to the light-emitting surface of the lampshade 2, and a small part of the light emitted by the light source board 3 is directly emitted to the light-emitting surface of the lampshade 2. The light from the two light source boards 3 mixes with each other when emitting light, so that the light emission of the linear lamp is more uniform.

[0042] In another embodiment, see Figure 5 , 6 , the lampshade 2 is a thin-walled structure, and two symmetrically arranged arc plates 13 are provided in the lamp body 1, and a reflector 4 is correspondingly provided on the arc plate 13. Specifically, the lamp body 1 and the two arc plates 13 are an integral extrusion molding structure, and the upper ends of the two arc plates 13 are fixedly connected to ensure the structural strength of the arc plates 13. The light source board 3 emits light, and the reflector 4 reflects most of the light to the light-emitting surface of the lampshade 2. Preferably, the plane height where the tops of the two arc plates 13 are located is lower than the plane height where the opening 11 is located, so that a small part of the light emitted by the light source board 3 is directly emitted to the light-emitting surface of the lampshade 2, and the light from the two light source boards 3 mixes with each other when emitting light, so that the light emission of the linear lamp is more uniform.

[0043] When the two light source boards 3 are arranged back to back, the substrates 32 on the two light source boards 3 are close to each other. Specifically, a middle plate 15 parallel to one side of the long side of the lamp body 1 is provided in the middle of the lamp body 1, two groups of first mounting grooves 12 are symmetrically arranged on both sides of the middle plate 15, and two reflective sheets 4 are respectively close to one side of the long side of the lamp body 1.

[0044] In one embodiment, see Figure 7 , 8The lampshade 2 is a solid structure, and two symmetrical light-transmitting parts 21 are provided at the lower end of the lampshade 2. A groove 22 for avoiding the light source board 3 is provided on one side of each light-transmitting part 21. A second arc surface 23 is provided on the side of the light-transmitting part 21 away from the groove 22, and the reflector 4 is provided on the second arc surface 23. Specifically, the middle plate 15 is located between the two light-transmitting parts 21, the two grooves 22 are respectively located on the side where the two light-transmitting parts 21 are close to each other, and the two second arc surfaces 23 are respectively located on the side where the two light-transmitting parts 21 are away from each other. The two light source boards 3 are correspondingly located in the two grooves 22, and most of the light emitted by each light source board 3 passes through the corresponding light-transmitting part 21 to the reflector 4. The reflector 4 reflects most of the light to the light-emitting surface of the lampshade 2, and a small part of the light emitted by the light source board 3 is directly emitted to the light-emitting surface of the lampshade 2. The light from the two light source boards 3 mixes with each other when emitting light, so that the light emission of the linear lamp is more uniform.

[0045] In another embodiment, see Fig. 9 , 10 The lampshade 2 is a thin-walled structure, and two symmetrically arranged arc plates 13 are arranged in the lamp body 1, and a reflector 4 is correspondingly arranged on the arc plate 13. Specifically, the lamp body 1 and the two arc plates 13 are an integral extrusion molding structure, and the upper ends of the two arc plates 13 are respectively fixedly connected to one side of the long side of the lamp body 1. The light source board 3 emits light, and the reflector 4 reflects most of the light to the light-emitting surface of the lampshade 2. A small part of the light emitted by the light source board 3 is directly emitted to the light-emitting surface of the lampshade 2. The light from the two light source boards 3 mixes with each other when emitting light, so that the light emission of the linear lamp is more uniform.

[0046] Preferably, if Figure 8 , 10 As shown, the height of the middle plate 15 is lower than the height of one side of the long side of the lamp body 1 to reduce the dark area.

[0047] In the above, the installation position of the light source board 3 is set parallel to one side of the long side of the lamp body 1, and the short side of the lamp body 1 is used for light output. In practical applications, according to lighting requirements, multiple functional electronic components can be placed on the light source board 3, and the width of the long side of the lamp body 1 is increased to achieve the installation of the light source board 3 of the corresponding size. At the same time, there is no need to increase the width of the short side of the lamp body 1, so that the whole lamp can be made into a small size or an extremely small size, so that the maximum width of the whole lamp is less than or equal to 18mm, which can meet the installation requirements of small-sized installation grooves on the building installation surface. In addition, during the light-emitting process, after two reflections by the lens 33 and the reflector 4, the light is mixed more fully and evenly, so that the light mixing and color mixing effects of the line lamp are better.

[0048] In a preferred embodiment, see Figure 2 , 5The lampshade 2 is provided with second mounting grooves 24 on both sides, and the two second mounting grooves 24 are respectively plugged into the two sides of the opening 11; through the above arrangement, the lampshade 2 can be stably installed. The two sides of the lampshade 2 are flush with the two sides of the lamp body 1, that is, the light-emitting surface of the lampshade 2 is consistent with the width of the lamp body 1. After the lamp body 1 is installed in the mounting groove on the building surface, the light-emitting surface of the lampshade 2 fills the surface of the mounting groove on the entire building surface to achieve a better lighting effect.

[0049] In a preferred embodiment, see Figure 1 , 4 A wire groove 14 is provided on one side of the lamp body 1 away from the opening 11. Since the power driver electrically connected to the power board is provided on the outer wall of the lamp body 1, through the above arrangement, the power driver and related wires can be hidden in the wire groove 14 to facilitate the wiring of the linear lamp.

[0050] In the above-mentioned case, the power driver and the wires are not shown in the attached drawings.

[0051] It should be noted that both ends of the lamp body 1 are provided with end covers, which are not drawn in the drawings. The end covers are used to seal the lamp body 1 to prevent dust and water.

[0052] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the claims attached to the present invention.

Claims

1. A linear light with uniform light emission, characterized in that: It includes a lamp body, a lampshade, two light source boards and two reflectors. An opening is provided on one side of the lamp body, the lampshade is provided on the opening, the two light source boards are symmetrically arranged in the lamp body, and there is an angle between the plane where the light source boards are located and the plane where the openings are located, the light source board includes a plurality of LED patch lamp beads, the LED patch lamp beads are non-monochromatic lamp beads, the two reflectors are symmetrically arranged in the lamp body, one light source board corresponds to one reflector, the reflective surface of the reflector faces the corresponding light source board, and the light emitted by the light source board is reflected onto the lampshade.

2. The uniformly luminous linear light according to claim 1, characterized in that: The light source board also includes a substrate and a lens. A plurality of LED patch lamp beads are arranged on the substrate along the length direction of the substrate, and one lens covers one LED patch lamp bead correspondingly.

3. The uniformly luminous linear light according to claim 1, characterized in that: The lamp body is provided with two groups of first mounting grooves, and one light source board is correspondingly provided in one group of first mounting grooves.

4. The uniformly luminous linear light according to claim 1, characterized in that: The reflective sheet is provided with a first curved surface which is concave inwards, and the first curved surface faces the light source board.

5. The uniformly luminous linear light according to claim 4, characterized in that: The lampshade is a solid structure, and two symmetrical light-transmitting parts are arranged at the lower end of the lampshade. A groove for avoiding the light source board is opened on one side of each light-transmitting part, and a second arc surface is arranged on the side of the light-transmitting part away from the groove, and a reflective sheet is arranged on the second arc surface.

6. The uniformly luminous linear light according to claim 4, characterized in that: The lampshade is a thin-walled structure. Two symmetrically arranged arc plates are arranged in the lamp body, and a reflective sheet is correspondingly arranged on the arc plates.

7. The uniformly luminous linear light according to claim 1, characterized in that: The lampshade is provided with second mounting grooves on both sides respectively, and the two second mounting grooves are respectively plugged into the two sides of the opening; the two sides of the lampshade are flush with the two sides of the lamp body.

8. The uniformly luminous linear light according to claim 1, characterized in that: A wire groove is provided on one side of the lamp body away from the opening.

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