Panel lamp

Abstract

The utility model provides a panel lamp which comprises an installation plate, a plurality of lamp beads are arranged on one side of the installation plate, the lamp beads are annularly arranged on the installation plate at intervals, a reference ring is defined by the lamp beads, and the direction of the lamp beads is away from the center of the reference ring. The light guide plate covers the side, provided with the lamp beads, of the mounting plate, the light guide plate is provided with a first light guide part, the first light guide part is arranged corresponding to the lamp beads, the center of the first light guide part is located on the center line of the reference ring, and the thickness of the first light guide part is gradually reduced in the direction away from the center of the reference ring. According to the technical scheme, the problem that in the prior art, light is not uniform when the thickness of a panel lamp is small can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to panel light technical field, specifically, panel light. BACKGROUND

[0002] At present, in the existing panel light, the overall thickness of the lamp usually needs to be controlled to realize better decoration effect. However, when the thickness of the panel light is small, the distance between the lamp beads and the light guide panel is small, the lamp beads emit light towards the light guide panel, the light will be directly on the light guide panel, the distance between the lamp beads and the light guide panel is too close to cause uneven light, there will be dark area between the lamp beads, and the position of the lamp beads will be particularly bright, which will seriously cause the lamp wick to leak and produce glare spot. In the prior art, if the light of the panel light needs to be uniform, the distance between the lamp beads and the inner surface of the light guide plate needs to be kept at about 12mm, which increases the thickness of the panel light, affects the decoration effect of the panel light, and increasing the distance between the lamp beads and the inner surface of the light guide plate will also affect the lighting effect of the lamp beads. SUMMARY

[0003] The utility model provides a kind of panel light, to solve the problem of uneven light in the panel light of prior art when the thickness is small.

[0004] The utility model provides a kind of panel light, panel light includes: mounting plate, the side of mounting plate is provided with multiple lamp beads, multiple lamp beads annularly and intervally are arranged on mounting plate, multiple lamp beads are surrounded to form reference ring, and the direction of multiple lamp beads all deviates from the center of reference ring;Light guide plate, light guide plate cover is arranged in the side of mounting plate with lamp bead, light guide plate has first light guide portion, first light guide portion is set to correspond lamp bead, the center of first light guide portion is located on the center line of reference ring, and the thickness of first light guide portion gradually decreases along the direction away from the center of reference ring.

[0005] Further, the first light guide portion is a conical structure, the cone angle of the conical structure is less than or equal to 175°, and greater than or equal to 165°.

[0006] Further, the end face of the first light guide portion towards the lamp bead side is a spherical surface.

[0007] Further, the side of the mounting plate with the lamp bead is provided with a first light reflection layer.

[0008] Further, the first light reflection layer is a white oil coating layer or a light reflection film.

[0009] Further, the light guide plate further includes a second light guide portion, the second light guide portion is annularly arranged on the outer periphery of the first light guide portion, and the second light guide portion is located on the side of the first light guide portion close to the lamp bead.

[0010] Further, the panel light further has a shell, the shell is annularly surrounded on the outer side of the mounting plate and the second light guide portion in the circumferential direction, and the shell is made of non-transparent material.

[0011] Further, a second light reflection layer is arranged between the housing and the light guide plate.

[0012] Further, the side of the light guide plate away from the lamp bead has a plurality of decorative strips, the plurality of decorative strips are arranged annularly and spaced apart at the outer periphery of the first light guide part, the housing has a first mounting groove and a plurality of second mounting grooves, the first light guide part is arranged in the first mounting groove, the plurality of decorative strips and the plurality of second mounting grooves are arranged one by one, and the decorative strip is arranged in the second mounting groove.

[0013] Further, the side of the first light guide part away from the lamp bead is provided with a decorative piece, the decorative piece is made of a light-proof material, and the projection of the lamp bead coincides with the decorative piece in the direction of the center line of the reference ring.

[0014] The technical scheme of the panel lamp is characterized in that the direction of the lamp bead is set to be away from the center of the reference ring, so that the direction of the lamp bead is set to be not directly incident on the light guide plate, the light spot generated by the light guide plate due to direct light is reduced, the thickness of the first light guide part corresponding to the lamp bead gradually decreases along the direction away from the center line, the part of the first light guide part directly opposite to the lamp bead is relatively thick, the brightness of the lamp bead is attenuated, the diffuse reflection of the light in the light guide plate is increased, the effect of light attenuation is achieved, and the light of the light guide plate as a whole is more uniform. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the present application, and together with the description of the present application, serve to explain the present application. The present application is shown in the drawings as follows:

[0016] Figure 1 An exploded view of the structure of the panel lamp is shown.

[0017] Figure 2 A sectional view of the panel lamp is shown.

[0018] In the above drawings, the following reference signs are used:

[0019] 100, mounting plate; 110, lamp bead;

[0020] 200, light guide plate; 210, first light guide part; 220, second light guide part; 230, decorative strip; 240, fixing piece; 250, decorative piece;

[0021] 300, housing; 310, first mounting groove; 320, second mounting groove. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0023] As shown in Figure 1 and Figure 2 The present application provides a panel lamp, which comprises a mounting plate 100 and a light guide plate 200. The mounting plate 100 is provided with a plurality of lamp beads 110 on one side, the plurality of lamp beads 110 are arranged annularly and spaced apart on the mounting plate 100, the plurality of lamp beads 110 form a reference ring, and the orientations of the plurality of lamp beads 110 all deviate from the center of the reference ring. The light guide plate 200 is arranged on the side of the mounting plate 100 with the lamp beads 110, the light guide plate 200 has a first light guide part 210, the first light guide part 210 is arranged corresponding to the lamp beads 110, the center of the first light guide part 210 is located on the center line of the reference ring, and the thickness of the first light guide part 210 gradually decreases along the direction away from the center of the reference ring.

[0024] Specifically, the lamp beads 110 in the present application are LED lamp beads.

[0025] Specifically, the mounting plate 100 in the present application is a PCB plate.

[0026] The technical solutions of the present application are as follows: the orientations of the lamp beads 110 are arranged to deviate from the center of the reference ring, so that the orientations of the lamp beads 110 are not arranged to directly irradiate the light guide plate 200, the light spot generated by the light guide plate 200 due to direct light is reduced, the thickness of the first light guide part 210 arranged corresponding to the lamp beads 110 gradually decreases along the direction away from the center line, the part of the first light guide part 210 directly opposite the lamp beads 110 is relatively thick, the brightness of the lamp beads 110 is attenuated, the diffuse reflection of the light in the light guide plate 200 is increased, the effect of light attenuation is achieved, the light of the light guide plate 200 as a whole is more uniform, and the light guide plate 200 can be arranged closer to the mounting plate 100, the overall thickness of the panel lamp is reduced under the premise of realizing uniform light emission.

[0027] In an embodiment of the present application, the first light guide portion 210 is a conical structure, the center line of the conical structure corresponds to the center of the reference ring, the taper angle of the conical structure is less than or equal to 175° and greater than or equal to 165°. When the taper angle of the conical structure is less than 165°, the taper angle of the conical structure is too small, causing the part of the first light guide portion 210 corresponding to the lamp bead 110 to be too thick, which will greatly affect the brightness of the lamp bead 110 and affect the overall light emitting effect of the panel lamp; when the taper angle of the conical structure is greater than 175°, the taper angle of the conical structure is too large, causing the part of the first light guide portion 210 corresponding to the lamp bead 110 to be too thin, the first light guide portion 210 has a smaller effect on attenuating the brightness of the lamp bead 110, and the lamp bead 110 is still prone to bright spots. By setting the taper angle of the conical structure to be less than or equal to 175° and greater than or equal to 165°, the first light guide portion 210 can attenuate the lamp bead 110 well without affecting the light emission of the lamp bead 110 too much. Specifically, the taper angle of the conical structure can be set to 165°, 170° or 175°.

[0028] In another embodiment of the present application, the end face of the first light guide portion 210 towards the lamp bead 110 is a spherical surface, that is, the first light guide portion 210 has an arc-shaped protruding portion towards the lamp bead 110 to attenuate the brightness of the lamp bead 110.

[0029] In other possible embodiments of the present application, the first light guide portion 210 can also be an irregular shape, as long as the thickness of the first light guide portion 210 gradually decreases in the direction away from the center of the reference ring without sudden changes such as stepwise decrease, causing uneven light.

[0030] Further, the mounting plate 100 has a first light reflection layer on the side of the lamp bead 110. In this way, the light emitted from the side of the lamp bead 110 can be transmitted to the light guide plate 200 under the reflection of the first light reflection layer, so as to improve the illumination brightness of the lamp bead 110 and improve the illumination effect of the panel lamp.

[0031] In an embodiment of the present application, the first light reflection layer is a white oil coating layer, specifically, the white oil coating layer is a photosensitive ink coating layer, which reflects light while protecting the mounting plate 100.

[0032] In another embodiment of the present application, the first light reflection layer is a light reflection film, which can be attached to the mounting plate 100 to achieve a better light reflection effect.

[0033] Specifically, the light guide plate 200 also includes a second light guide portion 220, which is arranged in a ring around the outer periphery of the first light guide portion 210 and located on the side of the first light guide portion 210 closer to the lamp bead 110. With this arrangement, the first light guide portion 210 and the second light guide portion 220 can cooperate to form a cover-like structure, covering the outside of the lamp bead 110. Since the lamp bead 110 is oriented to the side, the second light guide portion 220 can be set to correspond to the orientation of the lamp bead 110, so as to make full use of the light from the lamp bead 110 to provide illumination and ensure the lighting effect of the panel light.

[0034] Specifically, the panel light also has a housing 300, which is arranged in a ring around the outer side of the mounting plate 100 and the second light guide 220. The housing 300 is made of an opaque material, so that some of the light emitted by the side-mounted lamp beads 110 can be reflected by the housing 300 and enter the second light guide 220, further improving the lighting effect of the panel light.

[0035] In some feasible embodiments of this application, a second reflective layer is provided between the housing 300 and the light guide plate 200. By providing the second reflective layer, the reflection effect of the housing 300 can be improved, thereby reducing the loss of light.

[0036] Similarly, the second reflective layer can be a reflective material coating, which is applied to the inside of the housing 300; the second reflective layer can also be a reflective film, which is disposed between the housing 300 and the light guide plate 200.

[0037] Furthermore, the light guide plate 200 has multiple decorative strips 230 on the side opposite to the lamp bead 110. These decorative strips 230 are arranged in a ring at intervals around the outer periphery of the first light guide portion 210. The outer casing has a first mounting groove 310 and multiple second mounting grooves 320. The first light guide portion 210 is disposed within the first mounting groove 310, and the multiple decorative strips 230 are correspondingly disposed within each of the multiple second mounting grooves 320. This arrangement allows the decorative strips 230 to achieve a decorative effect while simultaneously limiting the positioning of the outer casing 300 and the light guide plate 200 through the cooperation of the first light guide portion 210, the decorative strips 230, and the outer casing 300.

[0038] Furthermore, a plurality of fasteners 240 are arranged at intervals around the outer periphery of the light guide plate 200. The light guide plate 200 is fixedly connected to the mounting plate 100 through the fasteners 240, which are made of light-transmitting material. In this arrangement, the fasteners 240 can fix the light guide plate 200 to the mounting plate 100 without obstructing the light path, thus ensuring the light guiding effect of the light guide plate 200.

[0039] Specifically, the fastener 240 can be used with fasteners such as bolts to achieve a fixed connection between the light guide plate 200 and the mounting plate 100.

[0040] Because the distance between the lamp beads 110 and the light guide plate 200 is relatively short, the lamp beads 110 will still produce a light spot problem when emitting light. In some feasible embodiments of the present application, the side of the first light guide part 210 away from the lamp beads 110 is provided with a decorative piece 250, the decorative piece 250 is made of a non-light-transmitting material, and the projection of the lamp beads 110 coincides with the decorative piece 250 in the direction of the center line of the reference ring. In this way, the light spot formed by the lamp beads 110 can be blocked by the decorative piece 250, and the dark area formed between the lamp beads 110 can also be blocked, thereby ensuring the light effect; and the decorative piece 250 also has a decorative effect, thereby improving the aesthetic appearance of the panel lamp.

[0041] Specifically, the decorative piece 250 can be annular, and the diameter of the annular decorative piece 250 is greater than the diameter of the reference ring.

[0042] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0043] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in these embodiments are not intended to limit the scope of the present application, unless otherwise specifically stated. At the same time, it should be understood that the sizes of the various parts shown in the drawings are not drawn in proportion to the actual proportions. The techniques, methods and devices known to those skilled in the relevant art can not be discussed in detail, but under appropriate circumstances, the techniques, methods and devices should be considered as part of the specification. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of the example embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0044] In the description of the utility model, it is understood that the orientation words such as '' front, back, up, down, left, right '' '' horizontal, vertical, perpendicular, horizontal '' and '' top, bottom '' and the like indicated orientation or positional relationship is usually based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, in the absence of the opposite statement, these orientation words do not indicate and imply that the device or element indicated must have a particular orientation or be constructed and operated in a particular orientation, therefore can not be understood as the limitation of the protection scope of the utility model;The orientation words '' inside, outside '' refer to the inside and outside relative to the contour of each component.

[0045] For the convenience of description, spatial relative terms such as '' above'', '' above'', '' upper surface'', '' upper '' and the like can be used here to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawing. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawing. For example, if the device in the drawing is inverted, the device described as '' above '' or '' above '' other devices or structures will be positioned '' below '' or '' below '' other devices or structures. Thus, the exemplary term '' above '' can include both '' above '' and '' below '' orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative description used here is interpreted accordingly.

[0046] In addition, it should be noted that the use of '' first'', '' second '' and the like to limit parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, therefore can not be understood as the limitation of the protection scope of the utility model.

[0047] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, for those skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A panel light, characterized in that The panel lamp comprises: a mounting plate (100) provided with a plurality of lamp beads (110) on one side, the plurality of lamp beads (110) are annularly and spacedly arranged on the mounting plate (100), the plurality of lamp beads (110) surround to form a reference ring, and the plurality of lamp beads (110) all face away from the center of the reference ring; a light guide plate (200) covering the side of the mounting plate (100) provided with the lamp beads (110), the light guide plate (200) has a first light guide part (210) corresponding to the lamp beads (110), the center of the first light guide part (210) is located on the center line of the reference ring, and the thickness of the first light guide part (210) gradually decreases in the direction away from the center of the reference ring.

2. The panel light of claim 1, wherein, The first light guide part (210) is a conical structure, the conical angle of the conical structure is less than or equal to 175° and greater than or equal to 165°.

3. The panel light of claim 1, wherein, The end face of the first light guide part (210) on the side facing the lamp beads (110) is a spherical surface.

4. The panel light of claim 1, wherein, The side of the mounting plate (100) provided with the lamp beads (110) is provided with a first light reflection layer.

5. The panel light of claim 4, wherein, The first light reflection layer is a white oil coating layer or a light reflection film.

6. The panel light of claim 1, wherein, The light guide plate (200) further comprises a second light guide part (220) annularly arranged on the outer periphery of the first light guide part (210), and the second light guide part (220) is located on the side of the first light guide part (210) close to the lamp beads (110).

7. The panel light of claim 6, wherein, The panel lamp further has an outer shell (300) annularly surrounding the outer side of the mounting plate (100) and the second light guide part (220) in the circumferential direction, and the outer shell (300) is made of a light-proof material.

8. The panel light of claim 7, wherein, A second light reflection layer is arranged between the outer shell (300) and the light guide plate (200).

9. The panel light of claim 7, wherein, The side of the light guide plate (200) facing away from the lamp beads (110) has a plurality of decorative strips (230) annularly and spacedly arranged on the outer periphery of the first light guide part (210), the outer shell (300) has a first mounting groove (310) and a plurality of second mounting grooves (320), the first light guide part (210) is arranged in the first mounting groove (310), the plurality of decorative strips (230) and the plurality of second mounting grooves (320) are arranged one by one, and the decorative strip (230) is arranged in the second mounting groove (320).

10. The panel light of claim 1, wherein, The side of the first light guide part (210) facing away from the lamp beads (110) is provided with a decorative piece (250) made of a light-proof material, and the projection of the lamp beads (110) coincides with the decorative piece (250) in the direction of the center line of the reference ring.

Images