Direct type reflection lampshade
By designing specific thicknesses and openings in the sidewalls and connecting protrusions of the reflective lampshade, the problem of deformation or breakage during assembly and disassembly of the reflective lampshade is solved, achieving the effect of reducing scrap rate and improving reliability.
Patent Information
- Application Number
- CN202511408550.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2025-12-05
AI Technical Summary
During the assembly and disassembly of direct-lit LED modules, the protruding parts of the reflector cover are prone to deformation or breakage, leading to an increased scrap rate.
The reflective unit sidewalls of the reflective lampshade are designed with a specific thickness, and openings are provided on the reflective unit connecting the protrusions to ensure that the sidewalls have sufficient rigidity and elasticity during assembly and disassembly, avoiding deformation or breakage.
This reduced the scrap rate of reflector covers, ensured smooth assembly and disassembly processes, and improved product reliability and lifespan.
Smart Images
Figure CN121067291A_ABST
Abstract
Description
Technical Field
[0001] This disclosure pertains to a direct-lit reflector lampshade. Background Technology
[0002] In the field of direct-lit LEDs, reflectors are typically placed around the LED to increase its brightness. During the assembly of a direct-lit LED module, a protrusion on the outer side of the reflector engages with a groove in the surrounding die-cast component to secure the reflector. However, the protrusion is prone to deformation or even breakage during assembly and / or disassembly, increasing the scrap rate of the reflector.
[0003] In view of the above, there is an urgent need to develop a direct-lit reflector lampshade to improve the above problems. Summary of the Invention
[0004] The direct-lit reflector lampshade disclosed herein has a reflector unit with a specific thickness on its sidewall, and the reflector unit with the connecting protrusion has an opening, which can prevent deformation or breakage during the assembly or disassembly of the direct-lit LED module, thereby reducing the scrap rate of the reflector lampshade.
[0005] This disclosure provides a direct-lit reflector lampshade comprising a reflective array and a protrusion. The reflective array has an outer surface and includes a plurality of first reflective elements, a plurality of second reflective elements, and a third reflective element. Each first reflective element has a first opening. Each second reflective element has a second opening. The third reflective element has a third opening, wherein the plurality of first reflective elements are arranged in an array, and the plurality of second and third reflective elements surround the plurality of first reflective elements. The protrusion is located on the outer surface and connects to the third reflective element, wherein the maximum thickness of the sidewall of the third reflective element is 0.5 mm to 1 mm, and the third opening exposes the sidewall.
[0006] In some embodiments, from a top-down view, the central axis of the third opening is coaxial with the central axis of the protrusion.
[0007] In some implementations, the cross-sectional area of the first opening is equal to the cross-sectional area of the second opening, and the cross-sectional area of the third opening is greater than the cross-sectional areas of the first opening and the second opening.
[0008] In some embodiments, the reflective structure of the third reflective unit and the sidewall define a third opening, and the distance between the inner wall surface of the sidewall and the reflective structure in the first direction is 1 / 12 to 1 / 3 of the length of the first reflective unit in the first direction.
[0009] In some embodiments, the minimum thickness of the reflective structure in the second direction is 0.5 mm to 1 mm, and the first direction is perpendicular to the second direction.
[0010] This disclosure provides a direct-lit reflector lampshade comprising a reflective array and a protrusion. The reflective array has an outer surface and includes a plurality of first reflective elements, a plurality of second reflective elements, and a plurality of third reflective elements. Each first reflective element has a first opening. Each second reflective element has a second opening. Each third reflective element has a third opening. The plurality of first reflective elements are arranged in an array, while the plurality of second and third reflective elements surround the plurality of first reflective elements. The protrusion is located on the outer surface and connects two interconnected third reflective elements, wherein the maximum thickness of the sidewall of each third reflective element is 0.5 mm to 1 mm. The two third openings of the two interconnected third reflective elements connecting the protrusion are interconnected, forming a connecting portion, and the two third openings expose the two sidewalls of the two third reflective elements.
[0011] In some embodiments, from a top-down view, the two third reflective units connected to the protrusion are arranged in a mirror-symmetric manner, and the axis of symmetry between the two connected third reflective units is coaxial with the central axis of the protrusion.
[0012] In some implementations, the cross-sectional area of the first opening is equal to the cross-sectional area of the second opening, and the cross-sectional area of the third opening is greater than the cross-sectional areas of the first opening and the second opening.
[0013] In some embodiments, the reflective structure of each third reflective unit defines a third opening with the sidewall, and the inner wall surface of the sidewall of each third reflective unit defines a connecting portion with the inner wall surface of the reflective structure of each third reflective unit, the distance between the connecting portions in the first direction being 0.5 mm to 1 mm.
[0014] In some embodiments, in two interconnected third reflective units with connecting protrusions, the two inner wall surfaces of the two sidewalls of the two third reflective units are coplanar. Attached Figure Description
[0015] The various aspects of this disclosure can be best understood by reading in conjunction with the accompanying drawings, and the following detailed description is provided. It should be understood that, in accordance with industry standard practice, the various features are not drawn to scale. In fact, the dimensions of the various features can be arbitrarily increased or decreased for clarity.
[0016] Figure 1A A three-dimensional view of a direct-lit reflector lampshade and die-casting in the prior art.
[0017] Figure 1B for Figure 1A A top view of a direct-down reflector lampshade.
[0018] Figure 2 This is a top view of a direct-lit reflector lampshade illustrated according to some embodiments of the present disclosure.
[0019] Figure 3A for Figure 2 A magnified view of a portion of region A.
[0020] Figure 3B For along Figure 3A A schematic diagram of the cross section line A-A'.
[0021] Figure 3C This is a top view of a third reflective unit according to another embodiment of the present disclosure.
[0022] Figure 4A for Figure 2 A magnified view of a portion of region B.
[0023] Figure 4B For along Figure 4A A schematic diagram of the cross-section line B-B'.
[0024] In the attached figures, the following labels are used:
[0025] 110: Direct-down reflector lampshade
[0026] 112: Reflection Unit
[0027] 114: Protrusion
[0028] 116: Sidewall
[0029] 120: Die-cast parts
[0030] 122: Trench
[0031] 200: Direct-down reflector lampshade
[0032] 210: Reflective Array
[0033] 212: First Reflection Unit
[0034] 214: Second Reflection Unit
[0035] 216, 216', 216a: Third reflecting unit
[0036] 220, 220a: Protrusion
[0037] A, B: Areas
[0038] A-A': Section line
[0039] B-B': Section line
[0040] C: Connecting part
[0041] D1: First Direction
[0042] D2: Second Direction
[0043] D3: Third direction
[0044] L1, L1', L2, L3, L3': Length
[0045] O1: First opening
[0046] O2: Second opening
[0047] O3,O3': Third opening
[0048] R,R': Reflection structure
[0049] T1,T1': Maximum thickness
[0050] T2: Minimum thickness
[0051] d: distance
[0052] d1: Minimum distance
[0053] d2: Maximum distance
[0054] d3: Distance
[0055] os: outer side
[0056] ss,ss': sidewall
[0057] s1,s1': inner wall surface
[0058] s2: inner wall surface Detailed Implementation
[0059] The following disclosure provides many different implementations or embodiments for achieving various features of this disclosure. Specific embodiments of the components and arrangements are described below to simplify this disclosure. These are, of course, merely embodiments and are not intended to be limiting. For example, in the following description, the formation of a first feature above or on a second feature may include an implementation where the first and second features are formed in direct contact, or an implementation where another feature may be formed between the first and second features so that the first and second features are not in direct contact.
[0060] In addition, spatial relative terms such as "below," "below," "lower than," "above," "above," and other similar terms are used here for the convenience of describing the relationship between one element or feature and another element or feature in the figure. Spatial relative terms cover not only the orientation depicted in the figure but also other orientations of the device during use or operation. The device may be oriented in other orientations (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein can be interpreted accordingly.
[0061] Additionally, when a number or range of numbers is described as “about,” “approximately,” “substantially,” or other similar terms, it is intended to cover numbers described as falling within a reasonable range, as those skilled in the art would understand to be numbers or other values within + / - 10%.
[0062] It is understood that although terms such as "first," "second," etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of the embodiments, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0063] Figure 1A A three-dimensional view of the prior art direct-lit reflector 110 and die-cast part 120. Figure 1B for Figure 1A A top view of the direct-down reflector lampshade 110. Please refer to... Figure 1A and Figure 1B The direct-lit reflector 110 includes multiple reflector units 112, and the multiple reflector units 112 are arranged in an array.
[0064] Please refer to Figure 1A The protrusion 114 (also called a lug) of the direct-lit reflector 110 is used to engage with the groove 122 of the die-cast part 120, so that the direct-lit reflector 110 is fixed in the die-cast part 120. However, during the assembly or disassembly of the direct-lit reflector 110, the protrusion 114 may deform or even break due to the excessive thickness of the side wall 116.
[0065] Figure 2 This is a top view illustrating a direct-lit reflector 200 according to some embodiments of this disclosure. Please refer to... Figure 2The direct-lit reflector 200 includes a reflective array 210 and protrusions 220 and 220a. The direct-lit reflector 200 includes region A and region B. It is understood that each reflective element in the direct-lit reflector 200 (i.e., the first reflective element 212, the second reflective element 214, and the third reflective elements 216 and 216a) is positioned around each LED to increase the luminous brightness of the LED.
[0066] Figure 3A for Figure 2 A magnified view of a portion of region A. Figure 3B For along Figure 3A A cross-sectional diagram of section line A-A'. Please refer to... Figure 2 , Figure 3A and Figure 3B In region A, the reflective array 210 has an outer surface OS and includes a plurality of first reflective elements 212, a plurality of second reflective elements 214, and a third reflective element 216. Each first reflective element 212 has a first opening O1. Each second reflective element 214 has a second opening O2. The third reflective element 216 has a third opening O3. Figure 2 As shown, multiple first reflective units 212 are arranged in an array, while multiple second reflective units 214 and third reflective units 216 surround the multiple first reflective units 212. Figure 3A and Figure 3B As shown, the protrusion 220 is located on the outer surface OS of the reflective array 210 and is connected to the third reflective unit 216, wherein the maximum thickness T1 of the sidewall ss of the third reflective unit 216 is 0.5 mm to 1 mm, and the third opening O3 exposes the sidewall ss.
[0067] Since the protrusion 220 connects to the third reflective unit 216, it can be understood that the third opening O3 of the third reflective unit 216 corresponds to the protrusion 220. It should be noted that the maximum thickness T1 of the sidewall ss is defined by the distance between the inner wall surface s1 of the sidewall ss and the outer surface os of the reflective array 210, and the third opening O3 exposes the inner wall surface s1 of the sidewall ss. In some embodiments, the maximum thickness T1 is 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, or 1mm. When the maximum thickness T1 is less than 0.5mm, the rigidity of the sidewall ss is poor, making it prone to cracking or warping. When the maximum thickness T1 is greater than 1mm, shrinkage marks are likely to appear on the sidewall ss during the manufacturing of the direct-lit reflector 200, posing a risk of uneven internal stress, which is detrimental to subsequent assembly or disassembly of the direct-lit reflector 200. In other words, when the maximum thickness T1 is 0.5 mm to 1 mm, the sidewall ss of the connecting protrusion 220 can provide good balanced strength when assembling or disassembling the direct-lit reflector 200, so the sidewall ss can provide sufficient rigidity and strength to resist the stress generated during assembly or disassembly.
[0068] More specifically, during the assembly or disassembly of the direct-lit reflector 200, the sidewall ss undergoes elastic deformation. Therefore, the direct-lit reflector 200 can smoothly engage or be lifted onto the die-cast part (not shown) via the protrusion 220. After elastic deformation, the sidewall ss returns to its original shape (or position), so the protrusion 220 is not damaged. Therefore, the direct-lit reflector 200 of this invention does not suffer from the problem of deformation or breakage of the protrusion due to excessively thick sidewalls found in existing technologies. In some embodiments, the direct-lit reflector 200 is a one-piece molded structure. In some embodiments, the material of the direct-lit reflector 200 is polycarbonate (PC).
[0069] Please refer to Figure 2 and Figure 3B The first reflective unit 212, the second reflective unit 214, and the third reflective unit 216 are arranged in an array along the plane formed by the first direction D1 and the second direction D2, and have a certain thickness in the third direction D3. It can be understood that the first direction D1, the second direction D2, and the third direction D3 are substantially perpendicular to each other.
[0070] Please refer to Figure 3AThe length L1 of the first reflecting unit 212 in the first direction D1 is greater than the length L3 of the third reflecting unit 216 in the first direction D1 and the length L2 of the second reflecting unit 214 in the first direction D1. It is understood that since the second reflecting unit 214 and the third reflecting unit 216 surround multiple first reflecting units 212 and are located in the same row, the length L2 of the second reflecting unit 214 is substantially equal to the length L3 of the third reflecting unit 216. In some embodiments, the length L3 is 3 / 4 of the length L1.
[0071] Please refer to Figure 3A From a top-down perspective, the central axis of the third opening O3 of the third reflective unit 216 is coaxial with the central axis of the protrusion 220. It should be noted that the "top-down perspective" referred to herein means looking down along the normal vector of the plane formed by the first direction D1 and the second direction D2 (i.e., the third direction D3). Figure 3A In one embodiment, the shape of the third opening O3 is bilaterally symmetrical, and the shape of the protrusion 220 is also bilaterally symmetrical. Therefore, the central axis of the third opening O3 can be understood as its axis of symmetry, and the central axis of the protrusion 220 can also be understood as its axis of symmetry, wherein the central axes of the third opening O3 and the protrusion 220 are in the first direction D1. In other words, the protrusion 220 is located at the middle position of the sidewall ss of the third reflecting unit 216. However, in other embodiments, the shapes of the third opening O3 and the protrusion 220 are not limited to bilateral symmetry.
[0072] Please refer to Figure 3A The cross-sectional area of the first opening O1 of the first reflecting unit 212 is substantially equal to the cross-sectional area of the second opening O2 of the second reflecting unit 214, and the cross-sectional area of the third opening O3 of the third reflecting unit 216 is greater than the cross-sectional area of the first opening O1 of the first reflecting unit 212 and the cross-sectional area of the second opening O2 of the second reflecting unit 214. It should be noted that the term "cross-sectional area" as used herein refers to the area viewed from above (i.e., Figure 3A The area of the third opening O3 of the third reflective unit 216 corresponds to the protrusion 220, and has a larger cross-sectional area than the first opening O1 and the second opening O2. Therefore, the direct-lit reflector 200 can be assembled or disassembled smoothly without the problem of deformation or breakage of the protrusion due to excessively thick sidewalls, which is common in the prior art.
[0073] Please refer to Figure 3AThe third reflective unit 216's reflective structure R and sidewall ss define a third opening O3. The distance d between the inner wall surface s1 of the sidewall ss and the reflective structure R in the first direction D1 is approximately 1 / 12 to approximately 1 / 3 of the length L1 of the first reflective unit 212 in the first direction D1. The distance d includes a minimum distance d1 and a maximum distance d2. In some embodiments, the minimum distance d1 is approximately 1 / 12 to approximately 1 / 6 of the length L1 of the first reflective unit 212. In some embodiments, the maximum distance d2 is approximately 1 / 3 of the length L1 of the first reflective unit 212. When the distance d is within the above range, the third opening O3 provides sufficient space for the sidewall ss to elastically deform during assembly or disassembly, without the problem of deformation or breakage of the protrusion due to excessive sidewall thickness found in the prior art.
[0074] Figure 3C This is a top view of the third reflective unit 216' according to another embodiment of the present disclosure. Figure 3A The third reflective unit 216 and Figure 3C The third reflecting unit 216' is similar, except that the minimum distance d1 of the third reflecting unit 216' is smaller than the minimum distance d1 of the third reflecting unit 216. The maximum distance d2 of the third reflecting unit 216' is substantially equal to the maximum distance d2 of the third reflecting unit 216. In some embodiments, the minimum distance d1 is approximately 1 / 12 of the length L1 of the first reflecting unit 212 (see reference). Figure 3A When the distance d (including the minimum distance d1 and the maximum distance d2) is within the above range, the third opening O3 provides sufficient space for the sidewall ss to elastically deform during assembly or disassembly, and there is no problem with the protrusion deforming or breaking due to the excessive thickness of the sidewall in the prior art.
[0075] Please refer to Figure 3A The minimum thickness T2 of the reflective structure R of the third reflective unit 216 in the second direction D2 is 0.5 mm to 1 mm, for example, 0.6 mm, 0.7 mm, 0.8 mm, or 0.9 mm. When the minimum thickness T2 is within the above range, the sidewall ss can provide good balanced strength during the assembly or disassembly of the direct-lit reflector 200. Therefore, the sidewall ss can provide sufficient rigidity and strength to resist the stress generated during assembly or disassembly, and will not have the problem of deformation or breakage of the protrusion due to excessively thick sidewalls in the prior art. It is understood that in Figure 3A In the implementation method, since the shape of the third opening O3 is symmetrical, the minimum thickness T2 of the reflective structure R is located on the left and right sides of the reflective structure R.
[0076] Figure 4A for Figure 2 A magnified view of a portion of region B. Figure 4B For along Figure 4A A schematic diagram of the cross-section along section line B-B'. Please refer to... Figure 2 , Figure 4A and Figure 4B In region B, the reflective array 210 has an outer surface OS and includes a plurality of first reflective elements 212, a plurality of second reflective elements 214, and a plurality of third reflective elements 216a. Each first reflective element 212 has a first opening O1. Each second reflective element 214 has a second opening O2 (see reference). Figure 3A Each third reflective element 216a has a third opening O3'. A plurality of first reflective elements 212 are arranged in an array, while a plurality of second reflective elements 214 and a plurality of third reflective elements 216a surround the plurality of first reflective elements 212. A protrusion 220a is located on the outer surface OS and connects two interconnected third reflective elements 216a, wherein the maximum thickness T1' of the sidewall ss' of each third reflective element 216a is 0.5 mm to 1 mm. The two third openings O3' of the two interconnected third reflective elements 216a connecting the protrusion 220a are interconnected, forming a connecting portion C, and the two third openings O3' expose the two sidewalls ss' of the two third reflective elements 216a. In other words, the two adjacent third openings O3' closest to the protrusion 220a are interconnected.
[0077] Since the protrusion 220a connects the two third reflective units 216a, it can be understood that the connecting portion C of the two third openings O3' of the two third reflective units 216a corresponds to the protrusion 220a. It should be noted that the maximum thickness T1' of the sidewall ss' is defined by the distance between the inner wall surface s1' of the sidewall ss' and the outer surface os of the reflective array 210, and the two third openings O3' expose the inner wall surface s1' of the sidewall ss'. In some embodiments, the maximum thickness T1' is 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, or 1mm. When the maximum thickness T1' is less than 0.5mm, the rigidity of the sidewall ss' is poor, making it prone to cracking or warping. When the maximum thickness T1' is greater than 1 mm, shrinkage marks are likely to appear on the sidewall ss' during the manufacturing of the direct-lit reflector 200, posing a risk of uneven internal stress, which is detrimental to the subsequent assembly or disassembly of the direct-lit reflector 200. In other words, when the maximum thickness T1' is between 0.5 mm and 1 mm, the sidewall ss' connecting the protrusion 220a can provide good balanced strength during the assembly or disassembly of the direct-lit reflector 200, thus providing sufficient rigidity and strength to resist the stress generated during assembly or disassembly.
[0078] More specifically, since the two third openings O3' of the two interconnected third reflective units 216a are connected to each other, and the protrusion 220a corresponds to the connecting portion C, the sidewall ss' will elastically deform during the assembly or disassembly of the direct-lit reflector 200. The direct-lit reflector 200 can smoothly pass through the protrusion 220a to engage or lift onto the die-cast part (not shown), and after elastic deformation, the sidewall ss' will return to its original shape (or position), so the protrusion 220a will not be damaged. Therefore, the direct-lit reflector 200 of this invention does not have the problem of deformation or breakage of the protrusion due to excessively thick sidewalls in the prior art.
[0079] In this embodiment, the protrusions 220 and 220a can have the same shape. However, in other embodiments, the shapes of the protrusions 220 and 220a can be adjusted according to the groove shape of the actual die-cast part, so the shapes of the protrusions 220 and 220a can be different, and are not limited to these. Figure 2 The shape shown.
[0080] Please refer to Figure 4A From a top-down view, the two interconnected third reflective units 216a connecting the protrusion 220a are arranged in a mirror-symmetrical manner, and the axis of symmetry between the two interconnected third reflective units 216a is coaxial with the central axis of the protrusion 220a. Figure 4A In one embodiment, the shapes of the two third openings O3' are bilaterally symmetrical, and the shape of the protrusion 220a is also bilaterally symmetrical. The central axis of the protrusion 220a can also be understood as its axis of symmetry, wherein the axis of symmetry of the third openings O3' and the central axis of the protrusion 220a lie in the first direction D1. In other words, the central axis of the protrusion 220a is located at the junction of the sidewalls ss' of the two third reflective units 216a. However, in other embodiments, the shapes of the two third openings O3' and the protrusion 220a are not limited to bilateral symmetry.
[0081] Please refer to Figure 3A and Figure 4A The cross-sectional area of the first opening O1 of the first reflecting unit 212 is equal to the cross-sectional area of the second opening O2 of the second reflecting unit 214. Figure 4AIn this embodiment, the cross-sectional area of the third opening O3' of the left third reflective unit 216a is substantially equal to the cross-sectional area of the third opening O3' of the right third reflective unit 216a. The cross-sectional area of the third opening O3' of the left third reflective unit 216a is larger than the cross-sectional area of the first opening O1 of the first reflective unit 212 and the cross-sectional area of the second opening O2 of the second reflective unit 214. Since the connecting portion C of the two third openings O3' of the two third reflective units 216a corresponds to the protrusion 220a and has a larger cross-sectional area than the first opening O1 and the second opening O2, the direct-lit reflector lamp cover 200 can be assembled or disassembled smoothly without the problem of deformation or breakage of the protrusion due to excessively thick sidewalls in the prior art.
[0082] Please refer to Figure 4A Each third reflective unit 216a has a reflective structure R' and a sidewall ss' defining a third opening O3'. The inner wall surface s1' of the sidewall ss' of each third reflective unit 216a and the inner wall surface s2 of the reflective structure R' define a connecting portion C. The distance d3 of the connecting portion C in the first direction D1 is 0.5 mm to 1 mm, for example, 0.6 mm, 0.7 mm, 0.8 mm, or 0.9 mm. When the distance d3 is within the above range, the sidewall ss' provides good balanced strength during the assembly or disassembly of the direct-lit reflector 200. More specifically, the distance d3 of the connecting portion C provides sufficient space for the sidewall ss to elastically deform during assembly or disassembly. The sidewall ss' provides sufficient rigidity and strength to resist the stress generated during assembly or disassembly, without the problem of deformation or breakage of protrusions caused by excessively thick sidewalls in existing technologies.
[0083] Please refer to Figure 4A In the two interconnected third reflective units 216a connecting the protrusion 220a, the two inner wall surfaces s1' of the two sidewalls ss' of the two third reflective units 216a are coplanar. When the two inner wall surfaces s1' are coplanar, it facilitates elastic deformation of the two sidewalls ss', thereby preventing deformation or breakage of the protrusion 220a. Figure 4A In some embodiments, since the shapes of the two third openings O3' are symmetrical, the shapes of the two reflective structures R' are also symmetrical. In some embodiments, the two inner wall surfaces s2 of the two reflective structures R' are coplanar.
[0084] Please refer to Figure 3A and Figure 4A The length L3 of the third reflecting unit 216 in the first direction D1 is substantially equal to the length L3' of the third reflecting unit 216a in the first direction D1. It should be noted that, although... Figure 2The diagram illustrates protrusions 220 and 220a at two different locations in regions A and B, but the direct-lit reflector 200 is not necessarily limited to including protrusions 220 and 220a at these two locations. In other words, the position of the protrusions relative to the reflective units is determined according to actual needs (e.g., the location and / or shape of the grooves in the die-casting), therefore the direct-lit reflector 200 may have only one type of protrusion 220 or 220a. Furthermore, the number of the first reflective unit 212, the second reflective unit 214, the third reflective units 216 and 216a, and the protrusions 220 and 220a is not limited. Figure 2 The quantities shown can be adjusted according to actual needs.
[0085] In summary, the sidewall of the reflective unit of the direct-lit reflector lampshade disclosed herein has a specific thickness, and the reflective unit connecting the protrusion has an opening, which can prevent deformation or breakage during the assembly or disassembly of the direct-lit LED module, thereby reducing the scrap rate of the reflector lampshade.
[0086] The foregoing overview of the features of various embodiments enables those skilled in the art to better understand the nature of this disclosure. Those skilled in the art should understand that this disclosure can be readily used as the basis for designing or modifying other processes and structures to achieve the same objectives and / or benefits as the embodiments described herein. Those skilled in the art should also recognize that such equivalent constructions do not depart from the spirit and scope of this disclosure, and that various changes, substitutions, and modifications can be made without departing from the spirit and scope of this disclosure.
Claims
1. A direct type reflection lamp shade characterized by comprising: A reflective array has an outer side surface and comprises: a plurality of first reflective units each having a first opening; a plurality of second reflective units each having a second opening; and a third reflective unit having a third opening, wherein the first reflective units are arranged in an array, and the second reflective units and the third reflective unit surround the first reflective units; and a protrusion on the outer side surface and connecting the third reflective unit, wherein a maximum thickness of a sidewall of the third reflective unit is 0.5mm to 1mm, and the third opening exposes the sidewall. Wherein a central axis of the third opening is coaxial with a central axis of the protrusion in a top-down view.
2. The direct type reflection lamp shade according to claim 1, wherein Wherein a cross-sectional area of the first opening is equal to a cross-sectional area of the second opening, and a cross-sectional area of the third opening is greater than the cross-sectional area of the first opening and the cross-sectional area of the second opening.
3. The direct type reflection lamp shade according to claim 1, wherein Wherein a reflective structure of the third reflective unit and the sidewall define the third opening, and a distance between an inner wall surface of the sidewall and the reflective structure in a first direction is 1 / 12 to 1 / 3 of a length of the first reflective units in the first direction.
4. The direct type reflection lamp shade according to claim 1, wherein Wherein a minimum thickness of the reflective structure in a second direction is 0.5mm to 1mm, and the first direction is perpendicular to the second direction.
5. The direct type reflection lamp shade according to claim 4, wherein A reflective array has an outer side surface and comprises:
6. A direct type reflection lamp shade characterized by comprising: a plurality of first reflective units each having a first opening; a plurality of second reflective units each having a second opening; and a plurality of third reflective units each having a third opening, wherein the first reflective units are arranged in an array, and the second reflective units and the third reflective units surround the first reflective units; and a protrusion on the outer side surface and connecting two of the third reflective units that are connected to each other, wherein a maximum thickness of a sidewall of each of the third reflective units is 0.5mm to 1mm, two of the third openings of the two third reflective units connected to the protrusion are in communication with each other and form a communication portion, and the two third openings expose two of the sidewalls of the two third reflective units. Wherein the two third reflective units connected to the protrusion are arranged in mirror symmetry to each other in a top-down view, and a symmetry axis between the two third reflective units connected to the protrusion is coaxial with a central axis of the protrusion. Wherein a cross-sectional area of the first opening is equal to a cross-sectional area of the second opening, and a cross-sectional area of the third opening is greater than the cross-sectional area of the first opening and the cross-sectional area of the second opening.
7. The direct type reflection lamp shade according to claim 6, wherein Wherein a reflective structure of each of the third reflective units and the sidewall of each of the third reflective units define the third opening, and an inner wall surface of the sidewall of each of the third reflective units and an inner wall surface of the reflective structure of each of the third reflective units define the communication portion, and a distance of the communication portion in a first direction is 0.5mm to 1mm.
8. The direct type reflection lamp shade according to claim 6, wherein Wherein the inner wall surfaces of the sidewalls of the third reflective units are coplanar in the two third reflective units connected to the protrusion.
9. The direct type reflection lamp shade according to claim 8, wherein 10. The direct type reflection lamp shade according to claim 9, wherein