Panel lamp capable of adjusting color temperature

Abstract

The utility model relates to a panel lamp capable of adjusting color temperature, which comprises a shell provided with a cavity with a downward opening. The light source plate assembly is arranged in the cavity; the diffusion plate is located below the light source plate assembly and connected with the shell; the color temperature adjusting device is used for adjusting the light emitting color temperature of the light source plate assembly, the upper end of the color temperature adjusting device is connected with the light source plate assembly, and the lower end of the color temperature adjusting device makes contact with the diffusion plate; when the diffusion plate is pressed from bottom to top, the diffusion plate transmits the pressing force to the color temperature adjusting device, and then the color temperature adjusting device adjusts the light emitting color temperature of the light source plate assembly. A user presses the diffusion plate to enable the diffusion plate to transmit the pressing force to the pressing transmission part, so that the pressing transmission part presses the color temperature adjusting switch, the panel lamp achieves adjustment of the light emitting color temperature, and adjustment is convenient; the newly-added structure is located in the panel lamp, and the appearance of the panel lamp cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting lamps, in particular to a panel lamp with adjustable color temperature. Background Art

[0002] The panel light group has good illumination uniformity, soft light, and beautiful design. It can be embedded in the ceiling, wall and installation surface, and is widely used as indoor lighting fixtures.

[0003] As people's quality of life improves, the requirements for panel lights have also changed, from the initial pursuit of brightness and energy saving to the desire to set the required brightness and color temperature by themselves, such as using warm light in winter, cool light in summer, soft light in the bedroom, and clear light in the living room.

[0004] For example, a Chinese invention patent with application number 202211484422.1 discloses a vision protection panel light, including a frame, a diffusion plate and a chassis, the diffusion plate is clamped in the frame, and the frame is connected to the chassis by a snap; an LED light source board, an LED driving device and a female terminal wire are arranged between the diffusion plate and the chassis; the female terminal wire is connected to the positive and negative poles of the LED light source board, and the female terminal wire is connected to the LED driving device; the LED driving device can drive the LED light source board for lighting; the LED light source board 4 includes a high color temperature light source group and a low color temperature light source group; the LED driving device can drive the low color temperature light source group and the high color temperature light source group respectively, and adjust the current ratio passing through the low color temperature light source group and the high color temperature light source group to adjust the lighting color temperature value.

[0005] However, this solution does not disclose the specific structure and method for controlling the LED driver; and the existing color temperature adjustment structure and method are usually inconvenient to adjust or affect the appearance of the panel light, affecting the user experience. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a panel lamp with adjustable color temperature which is easy to adjust and does not affect the appearance of the lamp body in view of the current status of the prior art.

[0007] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a panel lamp with adjustable color temperature, comprising a shell, the shell having a cavity opening downward; a light source panel assembly, the light source panel assembly being arranged in the cavity; a diffusion plate, the diffusion plate being located below the light source panel assembly and connected to the shell; characterized in that: it also includes a color temperature adjustment device, the color temperature adjustment device is used to adjust the luminous color temperature of the light source panel assembly, the upper end of the color temperature adjustment device is connected to the light source panel assembly, and the lower end of the color temperature adjustment device is in contact with the diffusion plate; when the diffusion plate is pressed from bottom to top, the diffusion plate transmits the pressing force to the color temperature adjustment device, and then the color temperature adjustment device adjusts the luminous color temperature of the light source panel assembly.

[0008] In order to adapt to the larger light emitting area of ​​the panel lamp, the light source board assembly includes a plurality of light bars arranged in parallel with each other and a driving board connected to the light bar signals, and the color temperature adjustment device is connected to the driving board. The panel lamp has a large light emitting area and is not suitable for being designed as a whole light source board. Separating the light bar and the driving board facilitates the flexible arrangement of the light source board assembly.

[0009] Preferably, the color temperature adjustment device includes a color temperature adjustment switch and a pressing transmission member arranged below the color temperature adjustment switch, the pressing transmission member is sleeved on the outer wall of the color temperature adjustment switch, the upper end of the color temperature adjustment switch is connected to the driving plate, and the lower end of the pressing transmission member is in contact with the diffusion plate; when the diffusion plate is pressed from bottom to top, the diffusion plate transmits the pressing force to the pressing transmission member, so that the pressing transmission member presses the color temperature adjustment switch, and then the color temperature adjustment switch adjusts the luminous color temperature of the light bar.

[0010] In order to facilitate the pressing transmission member to accurately transmit the pressing force to the color temperature adjustment switch, the color temperature adjustment switch is a touch switch, which includes a switch body and a button arranged below the switch body; the upper end of the pressing transmission member is provided with a receiving groove with an opening facing upward, the button is accommodated in the receiving groove, and the pressing transmission member can press the button. The button is accommodated in the receiving groove to position the pressing transmission member, so that the pressing transmission member can be vertically arranged between the color temperature adjustment switch and the diffusion plate without the aid of other structures to achieve the transmission of the pressing force; in other embodiments, the upper end of the pressing transmission member can also be fixedly connected to the button, such as by bonding.

[0011] Preferably, the accommodating groove includes a large groove and a small groove that are interconnected, the small groove is located at the center below the large groove, the switch body is accommodated in the large groove, and the button is accommodated in the small groove; the distance between the lower end surface of the button and the bottom wall of the small groove is smaller than the distance between the lower end surface of the switch body and the bottom wall of the large groove. The distance between the lower end surface of the switch body and the bottom wall of the large groove can provide space for the pressing transmission member to press the button upward.

[0012] In order to reduce the volume of the pressing transmission part and thus reduce the influence of the pressing transmission part on light transmission, the pressing transmission part is composed of a large diameter section, a middle diameter section and a small diameter section from top to bottom, the large groove is located in the large diameter section, the small groove is located in the middle diameter section, and the outer diameter of the small diameter section gradually decreases from top to bottom; and the pressing transmission part is made of transparent material.

[0013] In order to prevent the push transmission member from shifting in the vertical direction, the inner side wall of the small groove is in contact with the button, and the inner side wall of the large groove is in contact with the switch body; the lower end surface of the push transmission member is in contact with the upper surface of the diffuser plate, and the lower end surface of the button is in contact with the bottom wall of the small groove.

[0014] In order to make the diffusion plate deform sufficiently when being pressed, the driving plate is arranged at the center of the top wall of the housing, and the lower end of the pressing transmission member contacts the center of the diffusion plate. The center of the diffusion plate is more likely to deform than the edge of the diffusion plate, which is convenient for pressing the button; in other embodiments, the color temperature adjustment switch can also be a touch switch, and the button can adjust the color temperature after being pressed. The touch switch makes it unnecessary for the diffusion plate to deform significantly.

[0015] In order to improve the aesthetics of the panel lamp and reduce the difficulty of installation, the outer shell includes a shell top and a first ring wall extending downward from the edge of the shell top, and a connecting ring extends outward from the lower edge of the first ring wall; the panel lamp also includes a frame, and the frame is connected to the connecting ring by screws. A baffle extends from the lower edge of the frame toward the inside of the panel lamp, and the diffuser is placed on the baffle.

[0016] In order to increase the stability of the diffusion plate and strengthen the heat dissipation, the connection ring is recessed downward to form a convex rib, and when the frame and the connection ring are connected by screws, the convex rib abuts against the diffusion plate.

[0017] Compared with the prior art, the advantages of the utility model are: the user presses the diffusion plate and transmits the pressing force to the pressing transmission member through the diffusion plate, and then presses the transmission member to press the color temperature adjustment switch, so that the panel lamp can adjust the luminous color temperature, the adjustment method is simple, and it is convenient for users to operate; the newly added adjustment structure is located inside the panel lamp and will not affect the appearance of the panel lamp; in addition, the newly added pressing transmission member and color temperature adjustment switch are simple in structure and easy to assemble, and there is no need to change other components of the original panel lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a panel light in an embodiment of the utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure of the middle panel light from another angle;

[0020] Figure 3 for Figure 1 Exploded view of the center panel light;

[0021] Figure 4 for Figure 1 Cross-section of the middle panel light;

[0022] Figure 5 It is a cross-sectional view of the pressing transmission member in the embodiment of the utility model. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] like Figures 1 to 5 The preferred embodiment of the panel light with adjustable color temperature of the utility model is shown, and the panel light comprises a housing 1, a light source panel assembly, a diffusion plate 3, a frame 4, a color temperature adjustment switch 5 and a pressing transmission member 6. A power supply assembly 8 is connected to the housing 1, and the power supply assembly 8 provides power for the light source panel assembly of the panel light.

[0025] like Figure 3 , 4 As shown, the shell 1 is made of metal, including a shell top 11 and a first annular wall 12 extending downward from the edge of the shell top 11 and outward at the same time, and the shell top 11 and the first annular wall 12 enclose a chamber 1a; a connecting ring 13 is horizontally extended outward from the lower edge of the first annular wall 12, and the connecting ring 13 is recessed downward to form a rib 131; a plurality of upwardly protruding transverse protrusions 111 and a plurality of longitudinal protrusions 112 are formed on the shell top 11, and the transverse protrusions 111 are parallel to each other, and the longitudinal protrusions 112 are parallel to each other, and the transverse protrusions 111 and the longitudinal protrusions 112 are perpendicular to each other.

[0026] The light source board assembly includes a plurality of light strips 21 and a driving board 22 arranged parallel to each other, and the driving board 22 is connected to the power supply assembly 8 through a signal line 23; wherein each light strip 21 is arranged in each transverse protrusion 111, and the driving board 22 is arranged in a longitudinal protrusion 112 located in the middle of each longitudinal protrusion 112, and the driving board 22 is located at the center of the longitudinal protrusion 112, that is, the driving board 22 is arranged at the center position of the shell top 11.

[0027] like Figure 3 , 4 As shown, the frame 4 is arranged at the opening of the housing 1, and the frame 4 includes four side strips 41 connected in sequence to form a rectangle, and the upper surface of each side strip 41 is provided with a step surface 43 that abuts against a part of the connecting ring 13, and the step surface 43 is connected to the connecting ring 13 by screws 100, and the lower edge of each side strip 41 extends toward the inside of the panel light with a baffle 411, and the diffuser 3 is placed on the baffle 411; when the frame 4 is connected to the connecting ring 13 by screws, the rib 131 abuts against the diffuser 3, that is, the diffuser 3 is firmly fixed between the frame 4 and the connecting ring 13. In addition, a pair of opposite side strips 41 is provided with a connector 42 for connecting to the ceiling.

[0028] The upper end of the color temperature adjustment switch 5 is connected to the driving plate 22, the pressing transmission member 6 is arranged below the color temperature adjustment switch 5 and is sleeved on the outer wall of the color temperature adjustment switch 5, and the lower end of the pressing transmission member 6 is in contact with the diffusion plate 3; when the diffusion plate 3 is pressed from bottom to top, the diffusion plate 3 transmits the pressing force to the pressing transmission member 6, so that the pressing transmission member 6 presses the color temperature adjustment switch 5, and then the color temperature adjustment switch 5 adjusts the luminous color temperature of the light strip 21.

[0029] like Figures 3 to 5 As shown, specifically, the color temperature adjustment switch 5 is a touch switch, which includes a switch body 51 and a button 52 arranged below the switch body 51, and the pressing transmission member 6 can press the button 52; the pressing transmission member 6 is arranged along the vertical direction, and the upper end of the pressing transmission member 6 is provided with a receiving groove 60 opening upward, and the receiving groove 60 includes a large groove 601 and a small groove 602 that are interconnected, and the small groove 602 is located at the center below the large groove 601, and the switch body 51 is accommodated in the large groove 601, and the inner side wall of the large groove 601 is in contact with the switch body 51; the button 52 is accommodated in the small groove 602, and the inner side wall of the small groove 602 is in contact with the button 52; the contact between the inner side wall of the receiving groove 60 and the pressing transmission member 6 can realize that the pressing transmission member 6 stands upright in the vertical direction without the need for other auxiliary structures.

[0030] In addition, in order to press the button 52, the distance between the lower end surface of the button 52 and the bottom wall of the small groove 602 is smaller than the distance between the lower end surface of the switch body 51 and the bottom wall of the large groove 601. In this embodiment, the lower end surface of the pressing transmission member 6 contacts the upper surface of the diffusion plate 3, the button 52 contacts the bottom wall of the small groove 602, and there is a certain distance between the lower end surface of the switch body 51 and the bottom wall of the large groove 601. In other embodiments, the color temperature adjustment switch 5 can also be a pressure switch, and the state of the color temperature adjustment switch 5 can be changed as long as the button 52 feels pressure (the button 52 does not need to move to generate displacement).

[0031] In order to reduce the volume of the pressing transmission member 6 and further reduce the influence of the pressing transmission member 6 on the light transmission, the pressing transmission member 6 is composed of a large diameter section 61, a middle diameter section 62 and a small diameter section 63 from top to bottom, the large groove 601 is located in the large diameter section 61, the small groove 602 is located in the middle diameter section 62, and the outer diameter of the small diameter section 63 gradually decreases from top to bottom. In this embodiment, in order to further reduce the influence of the pressing transmission member 6 on the light transmission, the pressing transmission member 6 is made of a transparent material.

[0032] In the present invention, pressing the diffusion plate 3 changes the state of the color temperature adjustment switch 5, and the color temperature adjustment switch 5 adjusts the power supply current of the power supply component 8 through the driving board 22 and the signal line 23, thereby changing the luminous color temperature of the light bar 21. Specifically, two-way PWM control can be used for color temperature adjustment, which is a conventional design in the technical field and will not be described in detail here.

Claims

1. Panel lights with adjustable color temperature, including A housing (1), wherein the housing (1) has a chamber (1a) opening downward; A light source panel assembly, the light source panel assembly being arranged in the chamber (1a); A diffusion plate (3), the diffusion plate (3) being located below the light source panel assembly and connected to the housing (1); Features: Also includes A color temperature adjustment device, the color temperature adjustment device is used to adjust the light color temperature of the light source panel assembly, the upper end of the color temperature adjustment device is connected to the light source panel assembly, and the lower end of the color temperature adjustment device is in contact with the diffusion plate (3); When the diffusion plate (3) is pressed upward from bottom to top, the diffusion 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 light source panel assembly.

2. The panel light with adjustable color temperature according to claim 1, characterized in that: The light source panel assembly comprises a plurality of light bars (21) arranged in parallel with each other and a driving board (22) connected to the signals of the light bars (21), and the color temperature adjustment device is connected to the driving board (22).

3. The color temperature adjustable panel light according to claim 2, characterized in that: The color temperature adjustment device comprises a color temperature adjustment switch (5) and a pressing transmission member (6) arranged below the color temperature adjustment switch (5), wherein the pressing transmission member (6) is sleeved on the outer wall of the color temperature adjustment switch (5), the upper end of the color temperature adjustment switch (5) is connected to the driving plate (22), and the lower end of the pressing transmission member (6) is in contact with the diffusion plate (3); When the diffusion plate (3) is pressed upward from bottom to top, the diffusion plate (3) transmits the pressing force to the pressing transmission member (6), so that the pressing transmission member (6) presses the color temperature adjustment switch (5), and the color temperature adjustment switch (5) adjusts the luminous color temperature of the light bar (21).

4. The panel light with adjustable color temperature according to claim 3, characterized in that: The color temperature adjustment switch (5) is a touch switch, comprising a switch body (51) and a button (52) arranged below the switch body (51); The upper end of the pressing transmission member (6) is provided with a receiving groove (60) opening upward, the button (52) is received in the receiving groove (60), and the pressing transmission member (6) can press the button (52).

5. The panel light with adjustable color temperature according to claim 4, characterized in that: The accommodating groove (60) comprises a large groove (601) and a small groove (602) which are interconnected, the small groove (602) being located at the center below the large groove (601), the switch body (51) being accommodated in the large groove (601), and the button (52) being accommodated in the small groove (602); The distance between the lower end surface of the button (52) and the bottom wall of the small groove (602) is smaller than the distance between the lower end surface of the switch body (51) and the bottom wall of the large groove (601).

6. The panel light with adjustable color temperature according to claim 5, characterized in that: The pressing transmission member (6) comprises, from top to bottom, a large diameter section (61), a middle diameter section (62) and a small diameter section (63); the large groove (601) is located in the large diameter section (61); the small groove (602) is located in the middle diameter section (62); and the outer diameter of the small diameter section (63) gradually decreases from top to bottom; and the pressing transmission member (6) is made of a transparent material.

7. The panel light with adjustable color temperature according to claim 6, characterized in that: The inner side wall of the small groove (602) is in contact with the button (52), and the inner side wall of the large groove (601) is in contact with the switch body (51); the lower end surface of the pressing transmission member (6) is in contact with the upper surface of the diffusion plate (3), and the lower end surface of the button (52) is in contact with the bottom wall of the small groove (602).

8. The panel light with adjustable color temperature according to any one of claims 3 to 7, characterized in that: The driving plate (22) is arranged at the center of the inner top wall of the housing (1), and the lower end of the pressing transmission member (6) contacts the center of the diffusion plate (3).

9. The panel light with adjustable color temperature according to any one of claims 1 to 7, characterized in that: The housing (1) comprises a housing top (11) and a first annular wall (12) extending downward from the edge of the housing top (11), and a connecting ring (13) extending outward from the lower edge of the first annular wall (12); The panel lamp further comprises a frame (4), the frame (4) being connected to the connecting ring (13) by means of screws, a baffle (411) extending from the lower edge of the frame (4) towards the interior of the panel lamp, and the diffusion plate (3) being placed on the baffle (411).

10. The panel light with adjustable color temperature according to claim 9, characterized in that: The connection ring (13) is recessed downward to form a convex rib (131); when the frame (4) and the connection ring (13) are connected by screws, the convex rib (131) abuts against the diffusion plate (3).

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