LED light source structure and intelligent panel

Abstract

The utility model discloses an LED light source structure and an intelligent panel, and the LED light source structure comprises a PCB (Printed Circuit Board); the long-strip-shaped light guide piece comprises a light inlet face, a light outlet face and a plurality of reflecting faces, the light inlet face is perpendicular to the light outlet face, and the reflecting faces are matched with one another to be used for reflecting light received by the light inlet face to the light outlet face; the LED lamps are arranged in the length direction of the light guide part at intervals, the LED lamps are electrically connected with the PCB, and the LED lamps are arranged towards the light inlet face; the LED light source structure comprises a light guide part and an LED lamp, the light guide part is arranged on the light guide part, the LED lamp is arranged on the light guide part, the anti-dazzling screen is arranged between the light guide part and the LED lamp and used for preventing light rays of the LED lamp from directly irradiating the light emitting face, and the intelligent panel comprises the LED light source structure. The cost of the intelligent panel can be reduced, and the light effect of the light guide part is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of lamps, and particularly relates to an LED light source structure and an intelligent panel. Background Art

[0002] As people's living standards improve, they pay more and more attention to the quality of life. Smart home products are entering thousands of households. People pay more and more attention to the human-computer interaction experience of smart panels. The use of lights in smart home products is becoming more and more common, but currently smart panels are developing towards thinness and lightness. The internal space of the panel is limited, and a certain distance needs to be maintained between the lamp beads and the light guide. If the distance between the lamp beads and the light guide is too close, the lighting effect on the surface of the light guide is prone to unevenness, which can easily cause local strong light and affect the user experience.

[0003] In response to the above problems, the Chinese utility model patent with application number 202020244262.3 discloses an LED light-guiding line lamp, including a profile lamp holder, a circuit board is installed on the inner side wall of the profile lamp holder, a number of LED lamp beads are installed on the circuit board to emit light to the inner side of the profile lamp holder, and a transparent light-guiding strip is provided on the top cover of the profile lamp holder. The two ends of the profile lamp holder are respectively provided with a plug inner plate and a plug outer plate, and the plug outer plate is covered on the plug inner plate. The above-mentioned line lamp sets the lamp beads to emit light in a measured manner, so that the light-guiding strip emits light evenly and softly, which can effectively prevent glare.

[0004] However, the above-mentioned LED light guide strip lights reflect the light of the lamp beads through the inner surface of the profile lamp frame, which has high requirements on the inner surface of the profile lamp frame and has low reflection efficiency. It is necessary to increase the number of lamp beads to ensure the brightness of the light guide strip, which increases the cost of the light guide strip lights. Utility Model Content

[0005] The utility model provides an LED light source structure and an intelligent panel, aiming to solve the problems of low space utilization of the existing panel light source structure and the need to arrange lamp beads with high density, resulting in high cost.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An LED light source structure, comprising:

[0008] PCB board;

[0009] A long strip of light guide, comprising a light incident surface, a light emitting surface and a plurality of reflective surfaces, wherein the light incident surface and the light emitting surface are perpendicular to each other, and the plurality of reflective surfaces cooperate with each other to reflect the light received by the light incident surface to the light emitting surface;

[0010] A plurality of LED lamps are arranged at intervals along the length direction of the light guide, the LED lamps are electrically connected to the PCB board, and the LED lamps face the light incident surface;

[0011] The light shielding sheet is arranged between the light guide member and the LED lamp, and is used to prevent the light of the LED lamp from directly irradiating the light emitting surface.

[0012] Furthermore, the plurality of reflective surfaces include, in order of light path transmission, a first reflective surface, a second reflective surface and a third reflective surface, the angle between the first reflective surface and the light incident surface is 45°, the angle between the second reflective surface and the first reflective surface is 90°, and the third reflective surface is parallel to the second reflective surface.

[0013] Furthermore, the light guide forms a light guide main area and a light guide extension area extending downward from one side of the light guide main area along a cross section perpendicular to its length direction, wherein the light incident surface, the first reflection surface, and the second reflection surface are formed in the light guide extension area, and the third reflection surface and the light output surface are formed in the light guide main area, and the light guide main area also includes a light shading surface arranged opposite to the light output surface, and the light shading sheet is arranged on the light shading surface.

[0014] Furthermore, the length between the first and last two LED lamps among the plurality of LED lamps is smaller than the length of the light shielding sheet, and the length of the light shielding sheet is smaller than the length of the light guide.

[0015] Furthermore, the distance between the LED lamp and the light incident surface is less than 2 mm.

[0016] The utility model also provides a smart panel, which includes:

[0017] Install the shell;

[0018] A fixing seat fixedly connected to the mounting shell;

[0019] The LED light source structure as described above is arranged between the mounting shell and the fixing seat, wherein the light guide in the LED light source structure protrudes from a side of the fixing seat away from the mounting shell;

[0020] A front cover is arranged on a side of the fixing base away from the mounting shell, and the front cover is distributed on both sides of the light guide;

[0021] A pressing cover is arranged on a side of the front cover away from the fixing seat, and the pressing cover cooperates with the fixing seat to control the PCB to adjust the lighting effect of the LED lamp.

[0022] Furthermore, a light guide groove and an LED lamp avoidance groove are provided on the fixing seat, wherein the light guide groove is used for installing a light guide member, and the LED lamp avoidance groove is used for avoiding the LED lamp.

[0023] Furthermore, the fixing seat is fixedly connected to the mounting shell by fastening bolts.

[0024] Furthermore, a plurality of buckles are provided on one side of the front cover close to the fixing seat, and the plurality of buckles cooperate with the fixing seat to fix the front cover.

[0025] Furthermore, a plurality of connecting bosses are arranged on one side of the front cover close to the pressing cover, and mounting holes matching with the connecting bosses are arranged on the pressing cover, and the mounting holes are interference-fitted with the connecting bosses.

[0026] Compared with the prior art, the utility model has the following technical effects:

[0027] 1. The LED light source structure and the smart panel described in the utility model can use fewer LED lamps to achieve the same lighting effect through the structural design of the light guide, the coordination of the side-emitting LED lamps and the shading sheet, which can effectively reduce the cost of the smart panel.

[0028] 2. The LED light source structure and smart panel described in the utility model can reduce the distance between the LED lamp and the light guide while avoiding the appearance of high-brightness areas in the light guide through the arrangement of several reflective surfaces in the light guide, which can effectively improve the utilization rate of the internal space of the panel and ensure the lighting effect of the light guide. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an isometric view of an LED light source structure and an intelligent panel described in the utility model;

[0030] Figure 2 It is a longitudinal cross-sectional view of an LED light source structure and a smart panel described in the utility model;

[0031] Figure 3 It is a transverse cross-sectional view of an LED light source structure and a smart panel described in the utility model;

[0032] Figure 4 It is a front view of a transverse cross-sectional view of an LED light source structure and a smart panel described in the utility model;

[0033] Figure 5 This is a bottom view of an LED light source structure and an internal structure of a smart panel described in the utility model.

[0034] Figure 6 This is a schematic diagram of the cooperation between an LED light source structure and a light source structure of an intelligent panel and a fixing seat described in the utility model;

[0035] Figure 7 The utility model discloses an LED light source structure and a schematic diagram of an LED light source structure of an intelligent panel.

[0036] In the figure: 1. Mounting shell; 2. PCB board; 3. Fixing seat; 4. Front cover; 5. Press cover;

[0037] 6. Light guide; 601. Light incident surface; 602. Light emitting surface; 603. First reflecting surface; 604. Second reflecting surface; 605. Third reflecting surface; 606. Light shielding surface;

[0038] 7. Shade sheet; 8. LED light; 9. Fastening bolts; 10. Connecting boss; 11. Buckle. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the application and with reference to the accompanying drawings.

[0040] like Figure 5-7 As shown, an LED light source structure includes:

[0041] PCB board 2;

[0042] The long strip light guide 6 comprises a light incident surface 601, a light emitting surface 602 and a plurality of reflective surfaces, wherein the light incident surface 601 and the light emitting surface 602 are perpendicular to each other, and the plurality of reflective surfaces cooperate with each other to reflect the light received by the light incident surface 601 to the light emitting surface 602;

[0043] A plurality of LED lamps 8 are arranged at intervals along the length direction of the light guide 6, the LED lamps 8 are electrically connected to the PCB board 2, and the LED lamps 8 face the light incident surface 601; the LED lamps 8 are arranged at intervals along the length direction of the light guide 6 to ensure that the light emitted by the LED lamps 8 is received uniformly by the light guide 6; preferably, the plurality of LED lamps 8 are distributed at equal intervals on the PCB board 2, and the equal spacing distribution of the LED lamps 8 can further ensure the uniformity of the lighting effect of the light guide 6;

[0044] The shading sheet 7 is arranged between the light guide 6 and the LED lamp 8, and is used to prevent the light of the LED lamp 8 from directly irradiating the light output surface 602, thereby avoiding the appearance of a high-brightness area on the light guide 6. Preferably, the shading sheet 7 is made of opaque material and is fixed to the light guide 6 or the fixing seat 3 by gluing.

[0045] After the PCB board 2 is connected to an external power source, it can control the lighting effect of the LED lamp 8 and set the corresponding response conditions in conjunction with the sensor. The light guide 6 is made of milky white semi-transparent material such as PC material.

[0046] like Figure 7As shown, the several reflective surfaces include, in order of light path transmission: a first reflective surface 603, a second reflective surface 604 and a third reflective surface 605, the angle between the first reflective surface 603 and the light incident surface 601 is 45°, the angle between the second reflective surface 604 and the first reflective surface 603 is 90°, and the third reflective surface 605 is parallel to the second reflective surface 604; the light transmission distance is extended by reflection, thereby ensuring the uniformity of the brightness of the light guide 6 and further avoiding the appearance of high-brightness light areas on the light guide 6.

[0047] like Figure 7 As shown, the light guide 6 forms a light guide main area and a light guide extension area extending downward from one side of the light guide main area along a cross section perpendicular to its length direction, wherein the light incident surface 601, the first reflection surface 603, and the second reflection surface 604 are formed in the light guide extension area, and the third reflection surface 605 and the light output surface 602 are formed in the light guide main area, and the light guide main area also includes a light shading surface 606 arranged opposite to the light output surface 602, and the light shading sheet 7 is arranged on the light shading surface 606.

[0048] like Figure 5 As shown, the length between the head and tail two LED lights 8 among the multiple LED lights 8 is smaller than the length of the shading sheet 7, and the length of the shading sheet 7 is smaller than the length of the light guide 6. The above length setting can effectively avoid light leakage and local high brightness phenomenon in the smart phone.

[0049] like Figure 6-7 As shown, the distance between the LED lamp 8 and the light incident surface 601 is less than 2 mm.

[0050] In the traditional design of side-emitting lamps, the distance between the light guide 6 and the side-emitting lamp needs to be greater than 5 mm. This solution adds a shading sheet 7 between the light guide 8 and the LED light source 8 to cooperate with the structural design of the light guide 6, thereby reducing the distance between the light guide 6 and the LED light 8 to within 2 mm. This can achieve side-emitting light in a small space and improve the internal space utilization of the panel.

[0051] This solution also provides a smart panel, such as Figure 1-4 As shown, including:

[0052] Install shell 1;

[0053] A fixing base 3 fixedly connected to the mounting shell 1;

[0054] The LED light source structure as described above is arranged between the mounting shell 1 and the fixing seat 3, wherein the light guide member 6 in the LED light source structure protrudes from the fixing seat 3 on a side away from the mounting shell 1;

[0055] A front cover 4 is arranged on a side of the fixing base 3 away from the mounting shell 1, and the front cover 4 is distributed on both sides of the light guide 6;

[0056] A pressing cover 5 is arranged on the side of the front cover 4 away from the fixing base 3. The pressing cover 5 cooperates with the transmission structure in the fixing base 3 to press the adjustment switch on the PCB board 2 in the LED light source structure. The adjustment switch is used to control the PCB2 to adjust the lighting effect of the LED lamp 8. The transmission structure adopts a conventional elastic button setting, which is not repeated here; the front cover 4 and the pressing cover 5 are distributed on both sides of the light guide 6 to avoid blocking the light guide 6.

[0057] like Figure 4 and Figure 6 As shown, a light guide groove and an LED lamp avoidance groove are provided on the fixing seat 3 . The light guide groove is used for installing the light guide member 6 , and the LED lamp avoidance groove is used for avoiding the LED lamp 8 .

[0058] Preferably, the shape of the light guide groove is matched with the light guide member 6, and during installation, the light guide member 6 can be inserted from the side of the light guide groove to complete the fixation.

[0059] like Figure 3 and Figure 4 As shown, the fixing seat 3 is fixedly connected to the mounting shell 1 by fastening bolts 9 .

[0060] like Figure 3 and Figure 4 As shown, a plurality of buckles 11 are provided on one side of the front cover 4 close to the fixing base 3 , and the plurality of buckles 11 cooperate with the fixing base 3 to fix the front cover 4 .

[0061] like Figure 3 and Figure 4 As shown, a plurality of connecting bosses 10 are provided on one side of the front cover 4 close to the pressing cover 5, and mounting holes matching the connecting bosses 10 are provided on the pressing cover 5, and the mounting holes are interference fit with the connecting bosses 10. The pressing cover 5 is installed on the front cover 4 through the mounting holes and the connecting bosses 10 through interference fit, which is convenient for users to disassemble and replace according to needs. Preferably, the mounting holes are provided in the middle of the pressing cover 5, which is convenient for users to press the four corners of the pressing cover 5, so that the pressing cover 5 can move enough to touch the transmission device, thereby triggering the adjustment switch on the PCB board.

[0062] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. An LED light source structure, characterized in that: include: PCB board (2); A long strip-shaped light guide (6), comprising a light incident surface (601), a light emitting surface (602), and a plurality of reflective surfaces, wherein the light incident surface (601) and the light emitting surface (602) are perpendicular to each other, and the plurality of reflective surfaces cooperate with each other to reflect light received by the light incident surface (601) to the light emitting surface (602); A plurality of LED lights (8) are arranged at intervals along the length direction of the light guide (6), the LED lights (8) are electrically connected to the PCB board (2), and the LED lights (8) face the light incident surface (601); The light shielding sheet (7) is arranged between the light guide (6) and the LED lamp (8) and is used to prevent the light of the LED lamp (8) from directly irradiating the light emitting surface (602).

2. The LED light source structure according to claim 1, characterized in that: The plurality of reflection surfaces include, in order of light path transmission, a first reflection surface (603), a second reflection surface (604) and a third reflection surface (605); the angle between the first reflection surface (603) and the light incident surface (601) is 45°; the angle between the second reflection surface (604) and the first reflection surface (603) is 90°; and the third reflection surface (605) is parallel to the second reflection surface (604).

3. The LED light source structure according to claim 2, characterized in that: The light guide (6) forms a light guide main body area and a light guide extension area extending downward from one side of the light guide main body area along a cross section perpendicular to its length direction, wherein the light incident surface (601), the first reflection surface (603), and the second reflection surface (604) are formed in the light guide extension area, and the third reflection surface (605) and the light emitting surface (602) are formed in the light guide main body area, and the light guide main body area also includes a light shielding surface (606) arranged opposite to the light emitting surface (602), and the light shielding sheet (7) is arranged on the light shielding surface (606).

4. The LED light source structure according to claim 1, characterized in that: The length between the first and last two LED lamps (8) among the plurality of LED lamps (8) is smaller than the length of the light shielding sheet (7), and the length of the light shielding sheet (7) is smaller than the length of the light guide (6).

5. The LED light source structure according to claim 1, characterized in that: The distance between the LED lamp (8) and the light incident surface (601) is less than 2 mm.

6. A smart panel, characterized in that: include: Mounting shell (1); A fixing seat (3) fixedly connected to the mounting shell (1); An LED light source structure according to any one of claims 1 to 5, arranged between a mounting shell (1) and a fixing seat (3), wherein a light guide (6) in the LED light source structure protrudes from a side of the fixing seat (3) away from the mounting shell (1); A front cover (4) is arranged on a side of the fixing seat (3) away from the mounting shell (1), and the front cover (4) is distributed on both sides of the light guide (6); A pressing cover (5) is arranged on a side of the front cover (4) away from the fixing seat (3), and the pressing cover (5) cooperates with the fixing seat (3) to control the PCB board (2) to adjust the lighting effect of the LED lamp (8).

7. The smart panel according to claim 6, characterized in that: The fixing seat (3) is provided with a light guide groove and an LED lamp avoidance groove, the light guide groove is used for installing the light guide member (6), and the LED lamp avoidance groove is used for avoiding the LED lamp (8).

8. The smart panel according to claim 6, characterized in that: The fixing seat (3) is fixedly connected to the mounting shell (1) via fastening bolts (9).

9. The smart panel according to claim 6, characterized in that: A plurality of buckles (11) are provided on one side of the front cover (4) close to the fixing seat (3), and the plurality of buckles (11) cooperate with the fixing seat (3) to fix the front cover (4).

10. The smart panel according to claim 6, characterized in that: A plurality of connecting bosses (10) are arranged on one side of the front cover (4) close to the pressing cover (5), and mounting holes matching the connecting bosses (10) are arranged on the pressing cover (5), and the mounting holes are interference-fitted with the connecting bosses (10).

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