Small panel lamp capable of adjusting color temperature

Abstract

The utility model relates to a small panel lamp capable of adjusting color temperature, which comprises a shell provided with a cavity with a downward opening. The light guide plate is transversely arranged in the cavity; the diffusion plate is transversely arranged in the cavity and is positioned below the light guide plate; the upper end of the color temperature adjusting device is connected with the inner top wall of the shell, the color temperature adjusting device vertically penetrates through the light guide plate, and the lower end of the color temperature adjusting device makes contact with the diffusion plate; when the diffusion plate is pressed upwards, the diffusion plate transmits pressing force to the color temperature adjusting device, and then the color temperature adjusting device adjusts the light emitting color temperature of the small panel lamp. The color temperature adjusting device is arranged in the side-emitting small panel lamp, penetrates through the light guide plate and the reflective paper, and does not affect the function of the light guide plate, so that the color temperature of the side-emitting small panel lamp can be adjusted by pressing the diffusion plate.

Description

Technical Field

[0001] This utility model relates to the field of lighting fixtures, and in particular to a small panel light with adjustable color temperature. Background Technology

[0002] LED panel lights are aesthetically pleasing and emit soft light, widely used in offices, schools, hospitals, shopping malls, homes, and other locations. Based on their light-emitting principle, LED panel lights are mainly divided into two types: side-emitting and direct-emitting, both of which require a driver power supply.

[0003] In recent years, people have paid increasing attention to healthy lighting, among which color temperature adjustment is closely related. Healthy lighting emphasizes providing appropriate illuminance and color temperature according to people's needs to improve and enhance their quality of life and promote mental and physical health. For example, a color temperature of 5000K is beneficial for learning and working during the day, while a color temperature of 4000K helps reduce mental fatigue and promote sleep at night.

[0004] For example, Chinese Utility Model Patent Application No. 202422110887.1 disclosed by the applicant discloses a small panel lamp with adjustable color temperature, including a shell with a downward-opening cavity; a light source plate disposed inside the shell; a diffuser plate disposed inside the shell and below the light source plate; a color temperature adjustment device, the upper end of which is connected to the light source plate and the lower end of which is in contact with the diffuser plate; a positioning groove is provided on the inner peripheral wall of the shell, and the edge of the diffuser plate is engaged in the positioning groove; when the diffuser plate is pressed upward, the diffuser plate transmits the pressing force to the color temperature adjustment device, thereby adjusting the emission color temperature of the light source plate. The color temperature adjustment device includes a color temperature adjustment switch and a pressing transmission component. A color temperature adjustment switch is provided on the side of the light source board near the diffuser plate. A pressing transmission component is provided between the color temperature adjustment switch and the diffuser plate. When the diffuser plate is pressed from bottom to top, the diffuser plate transmits the pressing force to the pressing transmission component, thereby pressing the color temperature adjustment switch, which in turn adjusts the emission color temperature of the light source board.

[0005] The aforementioned color temperature adjustment device is suitable for direct-lit panel lights. If the aforementioned color temperature adjustment device is to be used for side-lit panel lights, further improvements to the overall structure are required. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a small panel lamp with adjustable color temperature suitable for side-emitting light, in light of the existing technology.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a small panel lamp with adjustable color temperature, comprising...

[0008] An outer casing having a downwardly opening cavity;

[0009] A light guide plate, which is horizontally disposed inside the cavity;

[0010] A diffuser plate, which is horizontally disposed inside the cavity and located below the light guide plate;

[0011] A color temperature adjustment device is provided, the upper end of which is connected to the inner top wall of the housing, the color temperature adjustment device vertically penetrates the light guide plate and the lower end contacts the diffuser plate; when the diffuser plate is pressed upward, the diffuser plate transmits the pressing force to the color temperature adjustment device, thereby adjusting the emission color temperature of the small panel light.

[0012] Preferably, a power board is provided on the inner top wall of the housing, and the color temperature adjustment device is electrically connected to the power board. The color temperature adjustment device adjusts the emission color temperature of the small panel lamp through the power board.

[0013] Preferably, the color temperature adjustment device includes a color temperature adjustment switch and a pressing transmission component. The color temperature adjustment switch is disposed on the power board, and the pressing transmission component is located between the color temperature adjustment switch and the diffuser plate, and the pressing transmission component can press the color temperature adjustment switch. The light guide plate has a first through hole for the pressing transmission component to pass through, and the lower end of the pressing transmission component contacts the upper surface of the diffuser plate. When the diffuser plate is pressed upward, the diffuser plate transmits the pressing force to the pressing transmission component, thereby the pressing transmission component presses the color temperature adjustment switch, and the color temperature adjustment switch adjusts the emission color temperature of the small panel light.

[0014] Preferably, the color temperature adjustment switch is a touch switch, which includes a switch body and a button located below the switch body, and the pressing transmission member can press the button.

[0015] To prevent the pressing mechanism from tilting when pressed, the upper end of the pressing mechanism is provided with an upward-opening receiving groove, and the button is received within the receiving groove. The cooperation between the button and the receiving groove limits the pressing mechanism in the lateral direction, making it less prone to tilting.

[0016] To reduce the obstruction of light inside the small panel light by the pressing drive component, the pressing drive component includes an interconnected middle diameter section and a small diameter section. The middle diameter section is located above the light guide plate, and the small diameter section vertically penetrates the light guide plate. The receiving groove is located inside the middle diameter section.

[0017] Preferably, the outer diameter of the small-diameter segment gradually decreases from top to bottom; the lower end of the small-diameter segment contacts the center of the diffuser plate.

[0018] To prevent the light guide plate from moving upward when the pressing transmission component is pressed, a support mechanism is connected to the top wall of the housing, and the lower end of the support mechanism is in contact with the light guide plate.

[0019] Preferably, the support mechanism is a box-shaped structure with an open top, and a second through hole is provided on the bottom wall of the support mechanism for the color temperature adjustment device to pass through; the power board extends into the support mechanism from the upper opening of the support mechanism.

[0020] To improve the safety of the small panel light, the support mechanism is made of plastic. The plastic support mechanism surrounds the power board, preventing leakage and improving safety.

[0021] Preferably, it also includes reflective paper attached to the upper surface of the light guide plate, the reflective paper having a third through hole through which the color temperature adjustment device passes.

[0022] Preferably, the support mechanism is further provided with support ribs on its periphery, and the upper and lower ends of the support ribs contact the inner top wall of the outer shell and the light guide plate, respectively.

[0023] Compared with the prior art, the advantages of this utility model are: the side-emitting small panel light is equipped with a color temperature adjustment device inside, the color temperature adjustment device passes through the light guide plate, the color temperature adjustment device does not affect the function of the light guide plate, so that the side-emitting small panel light can also adjust the color temperature by pressing the diffuser plate. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the small panel lamp in an embodiment of this utility model;

[0025] Figure 2 for Figure 1 Exploded view of small and medium-sized panel lights;

[0026] Figure 3 for Figure 1 Cross-sectional view of small and medium-sized panel lights;

[0027] Figure 4 for Figure 2 Structural diagram of the central support mechanism;

[0028] Figure 5 for Figure 2 Cross-sectional view of the pressing transmission component. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] like Figures 1-5The diagram shows a preferred embodiment of the adjustable color temperature small panel light of this utility model. The small panel light includes a housing 1 and a power board 4, LED beads 100, a light guide plate 2, a diffuser plate 3, and a color temperature adjustment device disposed inside the housing 1. A power supply assembly and a mounting assembly are connected to the outside of the housing 1. The power supply assembly provides power to the small panel light, and the mounting assembly facilitates the installation of the small panel light on the ceiling.

[0031] like Figure 2 , 3 As shown, the outer casing 1 includes a top wall 11 and a side wall 12 extending downward from the outer periphery of the top wall 11. The top wall 11 and the side wall 12 together form a downwardly opening cavity 1a. A limiting groove 121 is formed on the inner peripheral wall of the side wall 12. The diffuser plate 3 includes a horizontal plate 31 and a retaining ring 32 extending upward and outward from the outer periphery of the horizontal plate 31. The retaining ring 32 is engaged in the limiting groove 121. A ring of LED beads 100 is arranged around the inner peripheral wall of the side wall 12. The light guide plate 2 is arranged laterally inside the cavity 1a, and the height of the light guide plate 2 is the same as the height of the LED beads 100, so that the light emitted by the LED beads 100 enters the interior of the light guide plate 2. The light guide plate 2 and the diffuser plate 3 are arranged parallel to each other in the cavity 1a. A support ring 9 is provided between the light guide plate 2 and the diffuser plate 3 to support the light guide plate 2. The lower end of the support ring 9 abuts against the retaining ring 32. In addition, the upper side of the light guide plate 2 is covered with reflective paper 7. The above structure is a complete side-emitting small panel lamp structure. In order to achieve color temperature adjustment of the side-emitting small panel lamp, a color temperature adjustment device is further provided.

[0032] like Figure 2 , 3 As shown in Figure 5, a power board 4 is installed on the top wall 11 of the outer casing 1. The color temperature adjustment device is electrically connected to the power board 4, and the color temperature adjustment device adjusts the emission color temperature of the small panel light through the power board 4. The color temperature adjustment device includes a color temperature adjustment switch 5 and a pressing transmission component 6. The upper end of the color temperature adjustment switch 5 is connected to the power board 4, and the pressing transmission component 6 vertically penetrates the light guide plate 2 and its lower end contacts the diffuser plate 3. When the diffuser plate 3 is pressed upward, the diffuser plate 3 transmits the pressing force to the pressing transmission component 6, which in turn presses the color temperature adjustment switch 5 to adjust the emission color temperature of the small panel light.

[0033] Specifically, the color temperature adjustment switch 5 is a touch switch, which includes a switch body 51 and a button 52 located below the switch body 51. The switch body 51 is connected to the power board 4, and the button 52 can be pressed by pressing the transmission component 6. The transmission component 6 is arranged vertically, and the upper end of the transmission component 6 is provided with an upward-opening receiving groove 60. The receiving groove 60 includes a large groove 601 and a small groove 602 that are interconnected. The small groove 602 is located at the center below the large groove 601. The switch body 51 is housed in the large groove 601, and the inner sidewall of the large groove 601 is in contact with the switch body 51. The button 52 is housed in the small groove 602, and the inner sidewall of the small groove 602 is in contact with the button 52. The contact between the inner sidewall of the receiving groove 60 and the transmission component 6 allows the transmission component 6 to stand upright in the vertical direction without the need for other auxiliary structures. The light guide plate 2 has a first through hole 21 for the pressing transmission component 6 to pass through, and the lower end of the pressing transmission component 6 is in contact with the upper surface of the diffuser plate 3.

[0034] Furthermore, in order to press button 52, the distance between the lower end face of button 52 and the bottom wall of the small groove 602 is less than the distance between the lower end face of switch body 51 and the bottom wall of large groove 601. In this embodiment, the lower end face of the pressing transmission member 6 contacts the upper surface of the diffuser plate 3, button 52 contacts the bottom wall of the small groove 602, and there is a certain distance between the lower end face of switch body 51 and the bottom wall of large groove 601.

[0035] To reduce the volume of the pressing drive component 6 and thus minimize its impact on light transmission, the pressing drive component 6 consists of a large-diameter section 61, a medium-diameter section 62, and a small-diameter section 63 from top to bottom. The large groove 601 is located within the large-diameter section 61, and the small groove 602 is located within the medium-diameter section 62. The outer diameter of the small-diameter section 63 gradually decreases from top to bottom. The medium-diameter section 62 is located above the light guide plate 2, and the small-diameter section 63 vertically penetrates the first through-hole 21 on the light guide plate 2 and the third through-hole 71 on the reflective paper 7. In this embodiment, to further reduce the impact of the pressing drive component 6 on light transmission, the pressing drive component 6 is made of transparent material. Simultaneously, the lower end of the small-diameter section 63 contacts the center of the diffuser plate 3.

[0036] To prevent the light guide plate from moving upwards when the pressing transmission component is pressed, a plastic support mechanism 8 is connected to the top wall of the inner shell 1. The support mechanism 8 is a box-shaped structure with an open top. A second through hole 81 for the middle diameter section 62 to pass through is opened on the bottom wall of the support mechanism 8. The power board 4 extends into the support mechanism 8 from the upper opening. The upper end of the support mechanism 8 abuts against the top wall 11 of the shell 1, and the lower end of the support mechanism 8 abuts against the reflective paper 7 above the light guide plate 2. Support ribs 82 are also provided around the support mechanism 8. The upper and lower ends of the support ribs 82 also abut against the top wall 11 of the shell 1 and the reflective paper 7, respectively. The plastic support mechanism 8 surrounds the power board, which can prevent the power board from leaking electricity and improve safety. When the user presses the diffuser plate 3, due to the presence of the support mechanism 8 above the light guide plate 2, the pressing transmission component 6 will not push the light guide plate 2 upwards during the upward movement, ensuring the stability of the small panel light structure.

Claims

1. A small panel light with adjustable color temperature, characterized in that: include The outer casing (1) has a cavity (1a) with a downward opening; A light guide plate (2) is laterally disposed inside the cavity (1a); A diffuser plate (3) is horizontally disposed inside the cavity (1a) and located below the light guide plate (2); A color temperature adjustment device is provided, the upper end of which is connected to the inner top wall of the outer shell (1), the color temperature adjustment device extends vertically through the light guide plate (2) and the lower end is in contact with the diffuser plate (3); when the diffuser plate (3) is pressed upward, the diffuser plate (3) transmits the pressing force to the color temperature adjustment device, and then the color temperature adjustment device adjusts the luminous color temperature of the small panel lamp.

2. The small panel light according to claim 1, characterized in that: A power board (4) is provided on the inner top wall of the outer shell (1), and the color temperature adjustment device is electrically connected to the power board (4).

3. The small panel light according to claim 2, characterized in that: The color temperature adjustment device includes a color temperature adjustment switch (5) and a pressing transmission component (6). The color temperature adjustment switch (5) is disposed on the power board (4). The pressing transmission component (6) is located between the color temperature adjustment switch (5) and the diffuser plate (3) and the pressing transmission component (6) can press the color temperature adjustment switch (5). The light guide plate (2) has a first through hole (21) through which the pressing transmission component (6) passes. The lower end of the pressing transmission component (6) contacts the upper surface of the diffuser plate (3).

4. The small panel light according to claim 3, characterized in that: The color temperature adjustment switch (5) is a touch switch, which includes a switch body (51) and a button (52) located below the switch body (51). The pressing transmission member (6) can press the button (52).

5. The small panel light according to claim 4, characterized in that: The upper end of the pressing transmission component (6) is provided with an upward-opening receiving groove (60), and the button (52) is housed in the receiving groove (60).

6. The small panel light according to claim 5, characterized in that: The pressing transmission component (6) includes an intermediate diameter section (62) and a minor diameter section (63) connected to each other. The intermediate diameter section (62) is located above the light guide plate (2), and the minor diameter section (63) vertically penetrates the light guide plate (2). The receiving groove (60) is located inside the intermediate diameter section (62).

7. The small panel light according to claim 6, characterized in that: The outer diameter of the small diameter section (63) gradually decreases from top to bottom; the lower end of the small diameter section (63) is in contact with the center of the diffuser plate (3).

8. The small panel light according to any one of claims 2 to 7, characterized in that: A support mechanism (8) is connected to the top wall of the inner shell (1), and the lower end of the support mechanism (8) is in contact with the light guide plate (2).

9. The small panel light according to claim 8, characterized in that: The support mechanism (8) is a box-shaped structure with an opening at the top. A second through hole (81) for the color temperature adjustment device to pass through is provided on the bottom wall of the support mechanism (8). The power board (4) extends into the support mechanism (8) from the opening at the top.

10. The small panel light according to claim 1, characterized in that: It also includes reflective paper (7) attached to the upper surface of the light guide plate (2), and the reflective paper (7) is provided with a third through hole (71) through which the color temperature adjustment device passes.

Images