Light guide structure and illuminating lamp
By designing a light guide structure in the lighting fixture, the light beam is reflected through the light guide inclined surface and the light guide protrusion, the problem of uneven light spot in existing lighting fixtures is solved, and a more uniform lighting effect is achieved.
Patent Information
- Application Number
- CN202421264762.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-06-04
AI Technical Summary
In existing lighting fixtures, the interval between the lamp beads of the light source parts leads to light spots that alternate light and dark are prone to occur at positions closer to the light source parts.
A light guide structure is designed, including a light guide plate, a light source member and a diffusion plate. The light source member is located on the top side of the light guide plate. The light beam is reflected through the light guide slope and the light guide protrusion and moves towards the diffusion plate, increasing the number of reflections of the light beam and making the light beam propagation more divergent.
By increasing the number of reflections of the light beam, the occurrence of light spots with alternating light and darkness in positions closer to the light source is avoided, and the lighting effect is improved.
Smart Images
Figure CN222543678U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of household electrical appliances, and in particular to a light guide structure and a lighting lamp. Background Art
[0002] Existing lighting fixtures install the light source on the side of the light guide plate. When the light beam generated by the light source passes through the side of the light guide plate, because the lamp beads in the light source are usually arranged at intervals, it is easy for a light spot phenomenon of alternating light and dark to appear at a position close to the light source. Utility Model Content
[0003] The utility model provides a light guide structure and an illuminating lamp, which can avoid the phenomenon of light spots alternating between light and dark at a position close to a light source.
[0004] The embodiments of the present invention can be implemented as follows:
[0005] An embodiment of the utility model provides a light guide structure, which includes:
[0006] Light guide plate, light source component and diffusion plate;
[0007] Among them, the light source component and the diffuser plate are respectively located on both sides of the light guide plate, the edge of the light guide plate is formed with a light guide slope, the light guide plate is formed with a light guide protrusion, the light source component is used to emit a light beam, and the light beam is reflected by the light guide slope and the light guide protrusion in turn and then moves toward the diffuser plate.
[0008] Optionally, the light source component is located on the top side of the light guide plate, and the top end of the light guide inclined surface extends outward relative to the bottom end.
[0009] Optionally, an angle α is formed between the light guiding inclined surface and the plate surface of the light guiding plate, wherein 35°≤α≤55°.
[0010] Optionally, the light source component includes a light source support plate and at least two lamp beads, the at least two lamp beads are arranged on the light source support plate, the light source support plate is located on the top side of the light guide plate, and the lamp beads are located on the top side of the light guide slope.
[0011] Optionally, there are multiple light-guiding protrusions, and an array of the multiple light-guiding protrusions is arranged on the light guide plate.
[0012] Optionally, the light guide structure further includes a first light reflector, and the first light reflector is located on a side of the light guide plate away from the diffuser plate.
[0013] Optionally, the first light reflecting plate is arranged in parallel with the light guiding plate.
[0014] Optionally, the light guide plate has a first side, a second side, a third side and a fourth side arranged in sequence, and the light guide structure also includes a second light reflecting plate, the first side is arranged opposite to the third side, the second side is arranged opposite to the fourth side, the first side and the third side are both formed with the light guide slope, and the second side and the fourth side are both provided with the second light reflecting plate.
[0015] Optionally, the light guide structure further includes a frame and a heat sink, the light guide plate, the light source component and the diffuser are all arranged on the inner side of the frame, and the heat sink is arranged on a side of the light guide plate away from the diffuser.
[0016] An embodiment of the utility model further provides a lighting lamp, comprising a light guide structure.
[0017] The beneficial effects of the light guide structure and the lighting lamp of the embodiment of the utility model include, for example:
[0018] The light guide structure includes a light guide plate, a light source component and a diffusion plate; wherein the light source component and the diffusion plate are respectively located on both sides of the light guide plate, a light guide slope is formed on the edge of the light guide plate, a light guide protrusion is formed on the light guide plate, and the light source component is used to emit a light beam, and the light beam is reflected by the light guide slope and the light guide protrusion in sequence and then moves toward the diffusion plate. Compared with the prior art, the light guide structure changes the relative position of the light source component and the light guide plate, so that the light beam is reflected by the light guide slope and the light guide protrusion in sequence before being emitted, and the number of reflections of the light beam is increased, so that the propagation of the light beam is more divergent, and the phenomenon of alternating light and dark spots at a position close to the light source component is avoided.
[0019] The illuminating lamp comprises a light guiding structure, which has all the functions of the light guiding structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 A schematic diagram of the assembly structure of the light guide structure provided in an embodiment of the utility model;
[0022] Figure 2 A schematic diagram of an exploded structure of a light guide structure provided in an embodiment of the utility model at a first viewing angle;
[0023] Figure 3 A schematic diagram of an exploded structure of a light guide structure provided in an embodiment of the utility model at a second viewing angle;
[0024] Figure 4 A partial cross-sectional schematic diagram of a light guide structure provided in an embodiment of the utility model;
[0025] Figure 5 A schematic diagram of light guide transmission of a light guide structure provided in an embodiment of the utility model;
[0026] Figure 6 It is a schematic structural diagram of a light guide plate provided in an embodiment of the utility model.
[0027] Icon: 100-light guide structure; 110-light guide plate; 1101-first side; 1102-second side; 1103-third side; 1104-fourth side; 111-light guide slope; 112-light guide protrusion; 120-light source component; 121-light source support plate; 122-lamp beads; 130-diffuser plate; 140-first reflector; 145-second reflector; 150-heat sink; 160-frame; 170-driver. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0031] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.
[0032] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.
[0033] The terms "comprises," "comprising," or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.
[0034] Unless otherwise clearly specified and limited, the terms "disposed", "connected" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0035] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.
[0036] The inventors have discovered that in existing lighting fixtures, the light source is installed on the side of the light guide plate. When the light beam generated by the light source passes through the side of the light guide plate, because the lamp beads in the light source are usually arranged at intervals, a light spot phenomenon of alternating light and dark is likely to appear at a position close to the light source.
[0037] Please refer to Figure 1-Figure 3 The light guide structure 100 and the lighting lamp provided in the embodiment of the utility model can solve the above-mentioned problems, which will be described in detail below.
[0038] The light guide structure 100 is used for lighting fixtures, and the light guide structure 100 includes a light guide plate 110, a light source component 120 and a diffuser plate 130; wherein the light source component 120 and the diffuser plate 130 are respectively located on both sides of the light guide plate 110, and a light guide inclined surface 111 is formed at the edge of the light guide plate 110, and a light guide protrusion 112 is formed on the light guide plate 110. The light source component 120 is used to emit a light beam, and the light beam is reflected by the light guide inclined surface 111 and the light guide protrusion 112 in turn and then moves toward the diffuser plate 130.
[0039] Compared with the prior art, the light-guiding structure 100 changes the relative positions of the light source 120 and the light-guiding plate 110, so that the light beam is reflected by the light-guiding inclined surface 111 and the light-guiding protrusion 112 before being emitted, and the number of reflections of the light beam is increased, so that the propagation of the light beam is more divergent, thereby avoiding the phenomenon of alternating light and dark spots at a position close to the light source 120.
[0040] It is worth noting that the light source element 120 and the diffusion plate 130 may be located at the top side and the bottom side of the light guide plate 110 , respectively, or may be located at the bottom side and the top side of the light guide plate 110 , respectively.
[0041] refer to Figure 1-Figure 3 The light guide structure 100 further includes a frame 160 and a heat sink 150. The light guide plate 110, the light source 120, the diffuser 130 and the heat sink 150 are all arranged on the inner side of the frame 160. The frame 160 mainly plays a role of limiting and protecting the components to prevent foreign substances from causing damage to the components located on the inner side of the frame 160. The heat sink 150 is arranged on the side of the light guide plate 110 away from the diffuser 130. The heat sink 150 mainly plays a role of heat dissipation to prevent the overall light guide structure 100 from being easily overheated and affecting the service life when working for a long time.
[0042] It is worth noting that the heat sink 150 can be a scalable structure made of metal material, which is used to shield and protect the top sides of various components to prevent the accumulation of dust and impurities on the top side from having a negative impact on the lighting performance of the light guide structure 100.
[0043] Furthermore, the light-guiding structure 100 also includes a driver 170, which is disposed on the top side of the heat sink 150. The driver 170 can be electrically connected to the lamp beads 122 in the light source component 120. The driver 170 is used to provide stable energy to the lamp beads 122 so that the lamp beads 122 can continuously and stably generate light beams for lighting.
[0044] refer to Figure 2-Figure 5 In this embodiment, in order to achieve sufficient lighting effect within a certain power, the light source 120 can be located on the top side of the light guide plate 110, that is, the diffuser 130 is located on the bottom side of the light guide plate 110, so that the light beam propagates from top to bottom.
[0045] Specifically, the top of the light guide slope 111 extends outward relative to the bottom, so that the light beam generated by the light source 120 first flows to the light guide slope 111 for reflection. In addition, an angle α may be formed between the light guide slope 111 and the surface of the light guide plate 110, wherein 35°≤α≤55°.
[0046] In this embodiment, in order to make the directions of the light beam incident on the light-guiding inclined surface 111 and the light beam reflected by the light-guiding inclined surface 111 more balanced, α can be set to 45°; of course, in other embodiments of the utility model, the specific size of α can also be 35°, 40°, 50°, 55°, etc., and there is no limitation on the specific size of α.
[0047] refer to Figure 2-Figure 5 The light source component 120 includes a light source support plate 121 and at least two lamp beads 122 . The at least two lamp beads 122 are arranged on the light source support plate 121 . The light source support plate 121 is located on the top side of the light guide plate 110 . The lamp beads 122 are located on the top side of the light guide inclined surface 111 .
[0048] The light source support plate 121 is used to install and fix the lamp beads 122. At least two lamp beads 122 are arranged in sequence along the extension direction of the light source support plate 121. When the number of lamp beads 122 is greater than three, at least three lamp beads 122 are arranged at equal intervals to make the generated light beam more uniform. During operation, by making the lamp beads 122 and the light guide inclined surface 111 correspondingly arranged, the light beam generated by the lamp beads 122 can move directly toward the light guide inclined surface 111.
[0049] In this embodiment, the number of light source components 120 is two groups, and the two groups of light source components 120 are both located on the top side of the light guide plate 110 and are arranged relative to the light guide plate 110. Of course, in other embodiments of the present invention, the number of light source components 120 can also be one, three, four, etc., and the specific number of light source components 120 is not limited.
[0050] refer to Figure 2 , Figure 3 and Figure 6 In order to make the light beam reflected by the light guiding inclined surface 111 to be more evenly divergent, the number of the light guiding protrusions 112 can be multiple, and the multiple light guiding protrusions 112 are arrayed on the light guiding plate 110.
[0051] Specifically, the light guide protrusion 112 is a laser engraved point formed on the top side of the light guide plate 110 . After the light beam reflected by the light guide inclined surface 111 contacts the light guide protrusion 112 , it will be scattered toward the diffuser 130 under the action of the light guide protrusion 112 .
[0052] It is worth noting that in other embodiments of the present invention, the light-guiding protrusion 112 may also be formed by other installation methods, and the specific formation method of the light-guiding protrusion 112 is not limited.
[0053] Furthermore, in order to further enhance the emission of the light beam toward the diffusion plate 130 , the light guide structure 100 may further include a first light reflector 140 . The first light reflector 140 is located on a side of the light guide plate 110 away from the diffusion plate 130 .
[0054] Furthermore, in order to ensure that the light beam reflected by the first reflective plate 140 can be evenly distributed, the reflective plate and the light guide plate 110 can be arranged in parallel.
[0055] In this embodiment, the top surface and the bottom surface of the light guide plate 110 are both rectangular. The light guide plate 110 has a first side 1101, a second side 1102, a third side 1103 and a fourth side 1104 which are arranged in sequence. The first side 1101 and the third side 1103 are arranged opposite to each other, and the second side 1102 and the fourth side 1104 are arranged opposite to each other. The light guide structure 100 also includes a second reflective plate 145. The first side 1101 and the third side 1103 are both formed with a light guiding inclined surface 111, and the second side 1102 and the fourth side 1104 are both provided with a second reflective plate 145.
[0056] Of course, in other embodiments of the present invention, the top and bottom surfaces of the light guide plate 110 may also be other shapes such as circular, fan-shaped, diamond-shaped, triangular, pentagonal, etc., and the specific shapes of the top and bottom surfaces of the light guide plate 110 are not limited.
[0057] The light guide structure 100 is provided with a light guide inclined surface 111 or a second light reflector 145 on each side of the light guide plate 110. The arrangement of the guiding inclined surface is opposite to the transmission direction of the light beam, so that the light beam can be reflected from the light guide inclined surface 111 to the light guide protrusion 112. The second light reflector 145 is mainly provided for deflecting the light beam, so that the light beam reflected by the light guide inclined surface 111 can contact the second light reflector 145 when moving on the second side 1102 and the fourth side 1104 of the supermarket, and then reflected to the light guide protrusion 112 for divergence, which helps to improve the convergence effect of the overall light beam.
[0058] It is worth noting that the first reflector 140 and the second reflector 145 can both be made of plastic material. The shape of the first reflector 140 is compatible with the shape of the bottom surface of the light guide plate 110, and the shape of the second reflector 145 is compatible with the shapes of the second side 1102 and the fourth side 1104 of the light guide plate 110, thereby better achieving the reflective effect and avoiding the existence of reflective blind spots.
[0059] The embodiment of the utility model further provides a lighting lamp, comprising a light guide structure 100 and a base, the base can be connected to the heat sink 150 in the light guide structure 100, and the base can be directly mounted on a wall, thereby fixing the light guide structure 100. The lighting lamp comprises the light guide structure 100, and has all the functions of the light guide structure 100.
[0060] In summary, the light guide structure 100 and the lighting lamp provided by the embodiments of the present invention have at least the following advantages:
[0061] (1) Compared with the prior art, the light guide structure 100 changes the relative positions of the light source 120 and the light guide plate 110, so that the light beam is reflected by the light guide inclined surface 111 and the light guide protrusion 112 before being emitted, and the number of reflections of the light beam is increased, so that the propagation of the light beam is more divergent, thereby avoiding the phenomenon of alternating light and dark spots at a position close to the light source 120.
[0062] (2) The light guide structure 100 is configured with a first reflector 140 parallel to the light guide plate 110, and a second reflector 145 is configured on the second side 1102 and the fourth side 1104 of the light guide plate 110. This can reflect the light beam during transmission, thereby making the light beam converge better and improving the overall lighting effect.
[0063] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A light guide structure, characterized in that: include: A light guide plate (110), a light source component (120) and a diffusion plate (130); The light source component (120) and the diffuser plate (130) are respectively located on two sides of the light guide plate (110); a light guide inclined surface (111) is formed on the edge of the light guide plate (110); a light guide protrusion (112) is formed on the light guide plate (110); the light source component (120) is used to emit a light beam, and the light beam is reflected by the light guide inclined surface (111) and the light guide protrusion (112) in sequence and then moves toward the diffuser plate (130).
2. The light guide structure according to claim 1, characterized in that: The light source component (120) is located on the top side of the light guide plate (110), and the top end of the light guide inclined surface (111) extends toward the outside relative to the bottom end.
3. The light guide structure according to claim 2, characterized in that: An included angle α is formed between the light guide inclined surface (111) and the plate surface of the light guide plate (110), wherein 35°≤α≤55°.
4. The light guide structure according to claim 2, characterized in that: The light source component (120) comprises a light source support plate (121) and at least two lamp beads (122), wherein the at least two lamp beads (122) are arranged on the light source support plate (121), the light source support plate (121) is located on the top side of the light guide plate (110), and the lamp beads (122) are located on the top side of the light guide inclined surface (111).
5. The light guide structure according to any one of claims 1 to 4, characterized in that: The number of the light-guiding protrusions (112) is multiple, and the multiple light-guiding protrusions (112) are arranged in an array on the light-guiding plate (110).
6. The light guide structure according to any one of claims 1 to 4, characterized in that: The light guide structure further comprises a first light reflector (140), wherein the first light reflector (140) is located on a side of the light guide plate (110) away from the diffusion plate (130).
7. The light guide structure according to claim 6, characterized in that: The first light reflecting plate (140) is arranged parallel to the light guiding plate (110).
8. The light guide structure according to any one of claims 1 to 4, characterized in that: The light guide plate (110) has a first side (1101), a second side (1102), a third side (1103) and a fourth side (1104) which are arranged in sequence. The light guide structure also includes a second light reflector (145). The first side (1101) and the third side (1103) are arranged opposite to each other, and the second side (1102) and the fourth side (1104) are arranged opposite to each other. The first side (1101) and the third side (1103) are both formed with the light guide inclined surface (111), and the second side (1102) and the fourth side (1104) are both provided with the second light reflector (145).
9. The light guide structure according to any one of claims 1 to 4, characterized in that: The light guide structure further comprises a frame (160) and a heat sink (150); the light guide plate (110), the light source component (120) and the diffuser plate (130) are all arranged on the inner side of the frame (160); and the heat sink (150) is arranged on a side of the light guide plate (110) away from the diffuser plate (130).
10. A lighting lamp, characterized in that: The light-guiding structure comprises the light-guiding structure as described in any one of claims 1 to 9.