Light bar module

Abstract

A light bar module comprises an outer light guide part, an inner light guide part and a circuit board. The two sides of the outer light guide piece are provided with a first containing space and a light emitting face respectively. The inner light guide piece is provided with a second containing space, and the inner light guide piece is contained in the first containing space. The circuit board is provided with a plurality of light-emitting elements, and each light-emitting element is accommodated in the second accommodating space and is suitable for emitting light from the light-emitting surface.

Description

Technical Field

[0001] A light strip module, in particular, refers to a light strip module with multi-piece lenses. Background Art

[0002] In recent years, backlight modules (BLM) have been widely used in various products, mostly used for logos or light bars on the appearance of products, so that these products have special luminous visual effects. The existing light bar module has a one-piece injection-molded lens (made of optical plastic material) and a light-emitting diode light bar. Among them, the lens is used as an "optical lens" or "diffusion lens" in the light bar module. Injection molding with optical plastic materials often produces an integrated lens structure to avoid the formation of a cross section or gap in the middle of the lens to lose light energy, or to produce uncontrollable light refraction that affects the optical effect of the light bar module.

[0003] During the design process of the light strip module, the main consideration is how to make the light effect uniform and effectively eliminate hot spots. In order to eliminate hot spots, at least one of the vertical and horizontal distances of the lens needs to be larger than 6.0mm, and even a high concentration of diffuser or diffuser powder needs to be added to assist in diffusing and diluting hot spots. Summary of the invention

[0004] In view of the above, in some embodiments, a light strip module includes an outer light guide, an inner light guide, and a circuit board. The outer light guide has a first accommodation space and a light emitting surface on both sides. The inner light guide has a second accommodation space, and the inner light guide is accommodated in the first accommodation space. The circuit board is provided with a plurality of light emitting elements, each of which is accommodated in the second accommodation space and is suitable for emitting light from the light emitting surface.

[0005] In some embodiments, the outer light guide comprises a first sub-light guide and a second sub-light guide. The first sub-light guide has a first sub-space. The second sub-light guide has a second sub-space. The first sub-light guide and the second sub-light guide are arranged side by side, and the first sub-space and the second sub-space constitute a first accommodating space.

[0006] In some embodiments, the outer light guide has a plurality of light effect structures located on the light emitting surface.

[0007] In some embodiments, the outer light guide includes a left horizontal side wall, a right horizontal side wall and a vertical side wall. The left horizontal side wall and the right horizontal side wall are parallel to each other. The vertical side wall is perpendicular to the left horizontal side wall and the right horizontal side wall. The vertical side wall includes an inner wall, and the inner wall is perpendicular to the left horizontal side wall and the right horizontal side wall. The vertical side wall connects the left horizontal side wall and the right horizontal side wall. The axis perpendicular to the inner wall is defined as a first axis, and the axis perpendicular to the left horizontal side wall or the right horizontal side wall is defined as a second axis, and the first axis is perpendicular to the second axis. The circuit board is parallel to the second axis, and the light emitting direction of each light emitting element is parallel to the circuit board.

[0008] In some embodiments, the outer light guide includes a left horizontal side wall, a right horizontal side wall and a vertical side wall. The left horizontal side wall and the right horizontal side wall are parallel to each other. The vertical side wall is perpendicular to the left horizontal side wall and the right horizontal side wall. The vertical side wall includes an inner wall, and the inner wall is perpendicular to the left horizontal side wall and the right horizontal side wall. The vertical side wall connects the left horizontal side wall and the right horizontal side wall. The axis perpendicular to the inner wall is defined as the first axis, and the axis perpendicular to the left horizontal side wall or the right horizontal side wall is defined as the second axis, and the first axis is perpendicular to the second axis. The circuit board and the second axis are at an acute angle, and the light emitting direction of each light emitting element is perpendicular or parallel to the circuit board.

[0009] In some embodiments, the thickness of the outer light guide and the inner light guide in the first axial direction is less than 4.5 mm.

[0010] In some embodiments, the first sub-light guide further comprises a first horizontal sidewall and a second horizontal sidewall parallel to each other, and a first vertical sidewall perpendicular to and connecting the first horizontal sidewall and the second horizontal sidewall. The first vertical sidewall comprises a first inner wall, and the first inner wall is perpendicular to the first horizontal sidewall and the second horizontal sidewall. The second sub-light guide further comprises a third horizontal sidewall at the same height as the first horizontal sidewall, a fourth horizontal sidewall at the same height as the second horizontal sidewall, and a second vertical sidewall perpendicular to and connecting the third horizontal sidewall and the fourth horizontal sidewall. The second vertical sidewall comprises a second inner wall, and the second inner wall is perpendicular to the third horizontal sidewall and the fourth horizontal sidewall. The light emitting surface comprises a first vertical sidewall and a second vertical sidewall. The first sub-light guide comprises a first fixing structure extending from a first end of the first horizontal sidewall and a second fixing structure extending from a second end of the second horizontal sidewall. The first sub-light guide corresponds to the second sub-light guide through the first fixing structure and the second fixing structure.

[0011] In some embodiments, the first fixing structure has a first protrusion protruding toward the second horizontal side wall, and the second fixing structure has a second protrusion protruding toward the first horizontal side wall. The second sub-light guide also includes a first elastic sheet and a second elastic sheet connected to the second vertical side wall, a first recess is formed between the first elastic sheet and the third end of the third horizontal side wall to accommodate the first protrusion, and a second recess is formed between the second elastic sheet and the fourth end of the fourth horizontal side wall to accommodate the second protrusion.

[0012] In some embodiments, an axis perpendicular to the first inner wall is defined as a first axial direction, an axis connecting the first horizontal sidewall to the second horizontal sidewall is defined as a second axial direction, and the second axial direction is perpendicular to the first axial direction. The outer surface of the first fixed structure is coplanar with the outer surface of the first horizontal sidewall, and the outer surface of the second fixed structure is coplanar with the outer surface of the second horizontal sidewall. The outer surface of the third horizontal sidewall and the outer surface of the first elastic sheet have a first height difference in the second axial direction, and the first height difference is greater than or equal to the thickness of the first fixed structure in the second axial direction. The outer surface of the fourth horizontal sidewall and the outer surface of the second elastic sheet have a second height difference in the second axial direction, and the second height difference is greater than or equal to the thickness of the second fixed structure in the second axial direction.

[0013] In some embodiments, an axis perpendicular to the first inner wall is defined as a first axial direction, an axis connecting the first horizontal side wall to the second horizontal side wall is defined as a second axial direction, and the second axial direction is perpendicular to the first axial direction. The projection position of the first end in the second axial direction is different from the projection position of the second end in the second axial direction. The projection position of the third end in the second axial direction is different from the projection position of the fourth end in the second axial direction.

[0014] In some embodiments, an axis perpendicular to the first inner wall is defined as a first axial direction, an axis connecting the first horizontal side wall to the second horizontal side wall is defined as a second axial direction, and the second axial direction is perpendicular to the first axial direction. A projection position of the first protrusion in the second axial direction is different from a projection position of the second protrusion in the second axial direction. A projection position of the first elastic sheet in the second axial direction is different from a projection position of the second elastic sheet in the second axial direction.

[0015] In some embodiments, the outer light guide further includes a third sub-light guide. The third sub-light guide has a third sub-space. The first sub-light guide, the second sub-light guide and the third sub-light guide are arranged in sequence, and the first sub-space, the second sub-space and the third sub-space constitute a first accommodating space.

[0016] In some embodiments, the outer light guide further includes a third sub-light guide. The third sub-light guide has a fifth horizontal sidewall at the same height as the third horizontal sidewall, a sixth horizontal sidewall at the same height as the fourth horizontal sidewall, and a third vertical sidewall perpendicular to and connecting the fifth horizontal sidewall and the sixth horizontal sidewall. The third vertical sidewall includes a third inner wall, and the third inner wall is perpendicular to the fifth horizontal sidewall and the sixth horizontal sidewall. The light emitting surface includes a first vertical sidewall, a second vertical sidewall, and a third vertical sidewall. The second sub-light guide has a third fixed structure extending from the fifth end of the third horizontal sidewall and a fourth fixed structure extending from the sixth end of the fourth horizontal sidewall. The second sub-light guide corresponds to the third sub-light guide through the third fixed structure and the fourth fixed structure.

[0017] In some embodiments, the third fixing structure has a third protrusion protruding toward the fourth horizontal side wall, and the fourth fixing structure has a fourth protrusion protruding toward the third horizontal side wall. The third sub-light guide also includes a third elastic sheet and a fourth elastic sheet connected to the third vertical side wall, a third recess is formed between the third elastic sheet and the seventh end of the fifth horizontal side wall to accommodate the third protrusion, and a fourth recess is formed between the fourth elastic sheet and the eighth end of the sixth horizontal side wall to accommodate the fourth protrusion.

[0018] In some embodiments, an axis perpendicular to the third inner wall is defined as a first axis, an axis connecting the fifth horizontal side wall to the sixth horizontal side wall is defined as a second axis, and the second axis is perpendicular to the first axis. The outer surface of the third fixed structure is coplanar with the outer surface of the third horizontal side wall, and the outer surface of the fourth fixed structure is coplanar with the outer surface of the fourth horizontal side wall. The outer surface of the fifth horizontal side wall and the outer surface of the third elastic sheet have a third height difference in the second axis, and the third height difference is greater than or equal to the thickness of the third fixed structure in the second axis. The outer surface of the sixth horizontal side wall and the outer surface of the fourth elastic sheet have a fourth height difference in the second axis, and the fourth height difference is greater than or equal to the thickness of the fourth fixed structure in the second axis.

[0019] In some embodiments, an axis perpendicular to the third inner wall is defined as a first axial direction, an axis connecting the fifth horizontal side wall to the sixth horizontal side wall is defined as a second axial direction, and the second axial direction is perpendicular to the first axial direction. The projection position of the fifth end in the second axial direction is different from the projection position of the sixth end in the second axial direction. The projection position of the seventh end in the second axial direction is different from the projection position of the eighth end in the second axial direction.

[0020] In some embodiments, an axis perpendicular to the third inner wall is defined as a first axis, an axis connecting the fifth horizontal side wall to the sixth horizontal side wall is defined as a second axis, and the second axis is perpendicular to the first axis. A projection position of the third protrusion in the second axis is different from a projection position of the fourth protrusion in the second axis. A projection position of the third spring sheet in the second axis is different from a projection position of the fourth spring sheet in the second axis.

[0021] In some embodiments, a first section of a side end of the first sub-light guide element is perpendicular to the light exit surface, and a second section of a side end of the second sub-light guide element is perpendicular to the light exit surface.

[0022] In some embodiments, the outer light guide has a plurality of first grooves, the inner light guide has a plurality of protruding structures, and the circuit board has a plurality of protruding parts and a plurality of second grooves. Each protruding part is respectively engaged with each first groove, and each protruding structure is respectively engaged with each second groove.

[0023] In some embodiments, the outer light guide comprises a first sub-light guide, a second sub-light guide and a third sub-light guide. The first sub-light guide has a first horizontal sidewall and a second horizontal sidewall parallel to each other, and a first vertical sidewall perpendicular to and connecting the first horizontal sidewall and the second horizontal sidewall. The first vertical sidewall comprises a first inner wall, and the first inner wall is perpendicular to the first horizontal sidewall and the second horizontal sidewall. The first horizontal sidewall, the second horizontal sidewall and the first vertical sidewall form a first subspace. The second sub-light guide has a third horizontal sidewall at the same height as the first horizontal sidewall, a fourth horizontal sidewall at the same height as the second horizontal sidewall, and a second vertical sidewall perpendicular to and connecting the third horizontal sidewall and the fourth horizontal sidewall. The second vertical sidewall comprises a second inner wall, and the second inner wall is perpendicular to the third horizontal sidewall and the fourth horizontal sidewall. The third horizontal sidewall, the fourth horizontal sidewall and the second vertical sidewall form a second subspace. The third sub-light guide has a fifth horizontal sidewall at the same height as the third horizontal sidewall, a sixth horizontal sidewall at the same height as the fourth horizontal sidewall, and a third vertical sidewall perpendicular to and connecting the fifth horizontal sidewall and the sixth horizontal sidewall. The third vertical sidewall includes a third inner wall, and the third inner wall is perpendicular to the fifth horizontal sidewall and the sixth horizontal sidewall. The fifth horizontal sidewall, the sixth horizontal sidewall and the third vertical sidewall form a third subspace. The first sub-light guide, the second sub-light guide and the third sub-light guide are arranged side by side in sequence. The first subspace, the second subspace and the third subspace constitute a first accommodation space. The light emitting surface includes a first vertical sidewall, a second vertical sidewall and a third vertical sidewall. The outer light guide has a plurality of light effect structures located on the light emitting surface. An axis perpendicular to the first inner wall is defined as a first axial direction, an axis connecting the first horizontal sidewall to the second horizontal sidewall is defined as a second axial direction, and the first axial direction is perpendicular to the second axial direction, and the light emitting direction of each light emitting element is the second axial direction. The first sub-light guide has a first fixing structure extending from the first end of the first horizontal side wall and a second fixing structure extending from the second end of the second horizontal side wall, and the first sub-light guide corresponds to the second sub-light guide through the first fixing structure and the second fixing structure. The second sub-light guide has a third fixing structure extending from the fifth end of the third horizontal side wall and a fourth fixing structure extending from the sixth end of the fourth horizontal side wall, and the second sub-light guide corresponds to the third sub-light guide through the third fixing structure and the fourth fixing structure. The first fixing structure has a first protrusion protruding toward the second horizontal side wall, the second fixing structure has a second protrusion protruding toward the first horizontal side wall, the third fixing structure has a third protrusion protruding toward the fourth horizontal side wall, and the fourth fixing structure has a fourth protrusion protruding toward the third horizontal side wall.The second sub-light guide also includes a first spring sheet and a second spring sheet connected to the second vertical side wall, a first recess is formed between the first spring sheet and the third end of the third horizontal side wall to accommodate the first protrusion, and a second recess is formed between the second spring sheet and the fourth end of the fourth horizontal side wall to accommodate the second protrusion. The third sub-light guide also includes a third spring sheet and a fourth spring sheet connected to the third vertical side wall, a third recess is formed between the third spring sheet and the seventh end of the fifth horizontal side wall to accommodate the third protrusion, and a fourth recess is formed between the fourth spring sheet and the eighth end of the sixth horizontal side wall to accommodate the fourth protrusion. The outer surface of the first fixed structure is coplanar with the outer surface of the first horizontal side wall, the outer surface of the second fixed structure is coplanar with the outer surface of the second horizontal side wall, the outer surface of the third fixed structure is coplanar with the outer surface of the third horizontal side wall, and the outer surface of the fourth fixed structure is coplanar with the outer surface of the fourth horizontal side wall. The outer surface of the third horizontal side wall has a first height difference with the outer surface of the first spring sheet in the second axial direction, and the first height difference is greater than or equal to the thickness of the first fixed structure in the second axial direction. The outer surface of the fourth horizontal side wall and the outer surface of the second elastic sheet have a second height difference in the second axial direction, and the second height difference is greater than or equal to the thickness of the second fixed structure in the second axial direction. The outer surface of the fifth horizontal side wall and the outer surface of the third elastic sheet have a third height difference in the second axial direction, and the third height difference is greater than or equal to the thickness of the third fixed structure in the second axial direction. The outer surface of the sixth horizontal side wall and the outer surface of the fourth elastic sheet have a fourth height difference in the second axial direction, and the fourth height difference is greater than or equal to the thickness of the fourth fixed structure in the second axial direction. The first section of the side end of the first sub-light guide is perpendicular to the light emitting surface, and the second section of the side end of the second sub-light guide is perpendicular to the light emitting surface. The outer light guide has a plurality of first grooves, the inner light guide has a plurality of protruding structures, the circuit board has a plurality of protrusions and a plurality of second grooves, each protrusion is respectively engaged in each first groove, and each protruding structure is respectively engaged in each second groove.

[0024] Thus, according to some embodiments, by splitting a one-piece light guide into a two-piece outer light guide and an inner light guide, the thickness or size of the structure required for mixing light or eliminating hot spots of the one-piece light guide can be reduced, so that when the structure space of the light strip module is insufficient, the generation of hot spots can still be effectively avoided. According to some embodiments, by splitting the outer light guide into multiple pieces, the difficulty of injection molding of slender and long-sized optical plastic materials and the amount of bending deformation of the injection molded parts can be reduced, and a variety of finely varied structures can be made on the light-emitting surface of the outer light guide. According to some embodiments, the light strip module continuously refracts or reflects light through the interface between the outer light guide and the inner light guide to achieve light divergence to uniformize the intensity of the light-emitting surface. Among them, the air layer located at the junction of the outer light guide and the inner light guide is the most natural light mixing medium. According to some embodiments, if diffusion powder needs to be added to the optical plastic material, it can be added only to the outer light guide or the inner light guide, or it can be added only to one or part of the outer light guide, so as to effectively eliminate hot spots, maintain brightness and reduce the space of the mechanism. According to some embodiments, the cross section of the side end of the outer light guide of the light strip module is perpendicular to the light emitting surface, so as to avoid the loss of light energy, the truncation of the light path, the leakage of light or the generation of uncontrollable light refraction that affects the optical effect of the light strip module, and can generate a continuous light source. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a front perspective exploded schematic diagram of a first embodiment of a light strip module;

[0026] Figure 2 is a back perspective exploded schematic diagram of a first embodiment of a light bar module;

[0027] Figure 3A is a side cross-sectional schematic diagram of a first embodiment of a light strip module;

[0028] Figure 3B is a side cross-sectional schematic diagram of a second embodiment of a light strip module;

[0029] Figure 4 is a front perspective exploded schematic diagram of a third embodiment of a light bar module;

[0030] Figure 5 is a back perspective exploded schematic diagram of a third embodiment of a light bar module;

[0031] Fig. 6A is a side cross-sectional schematic diagram of a first sub-light guide member of a third embodiment of a light strip module;

[0032] Figure 6B is a side cross-sectional schematic diagram of a second sub-light guide member of a third embodiment of a light strip module;

[0033] Figure 7is a partial three-dimensional schematic diagram of the third embodiment of the light strip module, showing a state where the first sub-light guide member is combined with the second sub-light guide member;

[0034] Figure 8 is a partial exploded perspective view of the third embodiment of the light strip module, in which the first sub-light guide member is separated from the second sub-light guide member;

[0035] Fig. 9 is a partial side cross-sectional schematic diagram of an outer light guide of a third embodiment of a light strip module, in a state where a first sub-light guide is separated from a second sub-light guide;

[0036] Fig.10 is a partial side cross-sectional schematic diagram of an outer light guide of a fourth embodiment of a light strip module, in a state where a first sub-light guide is separated from a second sub-light guide;

[0037] Fig.11 is a front perspective exploded schematic diagram of a fifth embodiment of a light strip module;

[0038] Fig.12 is a back perspective exploded schematic diagram of a fifth embodiment of a light bar module;

[0039] Fig.13A is a side cross-sectional schematic diagram of a first sub-light guide member of a fifth embodiment of a light strip module;

[0040] Fig. 13B is a side cross-sectional schematic diagram of a second sub-light guide member of a fifth embodiment of a light strip module;

[0041] Fig. 13C is a side cross-sectional schematic diagram of a third sub-light guide member of a fifth embodiment of a light strip module;

[0042] Fig.14 is a partial exploded perspective view of the fifth embodiment of the light strip module, in which the second sub-light guide member is separated from the third sub-light guide member;

[0043] Fig.15 is a partial side cross-sectional schematic diagram of an outer light guide of a fifth embodiment of a light strip module, in a state where the second sub-light guide is separated from the third sub-light guide;

[0044] Fig.16 is a three-dimensional schematic diagram of a fifth embodiment of a light strip module, showing a state in which a first sub-light guide member, a second sub-light guide member and a third sub-light guide member are combined;

[0045] Fig.17 is a partial side cross-sectional schematic diagram of an outer light guide of a sixth embodiment of a light strip module, in a state where the second sub-light guide is separated from the third sub-light guide;

[0046] Fig.18is a partial exploded perspective view of a seventh embodiment of a light bar module;

[0047] Fig.19A is a partial three-dimensional schematic diagram of the eighth embodiment of the light strip module, the third sub-light guide is combined with the inner light guide and the circuit board, and the light-emitting element corresponds to the position of the third section in the axial direction A;

[0048] Fig.19B It is a partial three-dimensional schematic diagram of the ninth embodiment of the light strip module, in which the third sub-light guide is combined with the inner light guide and the circuit board, and the light-emitting element is staggered at the position of the third section in the axial direction A.

[0049]

Explanation of symbols

[0050] 1,2,3: Light bar module

[0051] 11,21,31: External light guide

[0052] 111,211,311: light-emitting surface

[0053] 112, 212, 312: first accommodation space

[0054] 113: Left horizontal side wall

[0055] 114: Right horizontal side wall

[0056] 115: Vertical side wall

[0057] 1151: Inner wall

[0058] 213,313: first sub-light guide

[0059] 2131: first horizontal side wall

[0060] 21311: First end

[0061] 21312: first horizontal side wall outer surface

[0062] 2132: Second horizontal side wall

[0063] 21321: Second end

[0064] 21322: Second horizontal side wall outer surface

[0065] 2133,3133: first vertical side wall

[0066] 21331:Interval part

[0067] 21332: Vertical end

[0068] 21333:First inner wall

[0069] 2134,3134: First subspace

[0070] 2135: Light Effect Structure

[0071] 2136: First fixed structure

[0072] 21361: First bump

[0073] 21362: Outer surface of the first fixed structure

[0074] 2137: Second fixed structure

[0075] 21371: Second bump

[0076] 21372: Outer surface of the second fixed structure

[0077] 2138: First Section

[0078] 214,314: second sub-light guide

[0079] 2141,3141: Third horizontal side wall

[0080] 21411: Third end

[0081] 21412, 31412: Third horizontal side wall outer surface

[0082] 31413:Fifth end

[0083] 2142,3142: Fourth horizontal side wall

[0084] 21421: Fourth end

[0085] 21422, 31422: Fourth horizontal side wall outer surface

[0086] 31423: Sixth end

[0087] 2143,3143: Second vertical side wall

[0088] 21431: Second Section

[0089] 21432:Interval part

[0090] 21433,31433: Second inner wall

[0091] 2144,3144: Second subspace

[0092] 2145: Light Effect Structure

[0093] 2146: The First Shrapnel

[0094] 21461: Outer surface of the first shrapnel

[0095] 21462: First concave part

[0096] 2147: Second Shrapnel

[0097] 21471: Outer surface of the second spring

[0098] 21472:Second recess

[0099] 3148: Third fixed structure

[0100] 31481: Third bump

[0101] 31482: Outer surface of the third fixed structure

[0102] 3149: Fourth fixed structure

[0103] 31491: Fourth bump

[0104] 31492: Outer surface of the fourth fixing structure

[0105] 315: third sub-light guide

[0106] 3151: Fifth horizontal side wall

[0107] 31511: Seventh end

[0108] 31512: Fifth horizontal side wall outer surface

[0109] 3152: Sixth horizontal side wall

[0110] 31521: The eighth end

[0111] 31522: Sixth horizontal side wall outer surface

[0112] 3153: Third vertical side wall

[0113] 31531: The third section

[0114] 31532: The third inner wall

[0115] 3154: The Third Subspace

[0116] 3156: The Third Shrapnel

[0117] 31561:Outer surface of the third spring

[0118] 31562:Third recess

[0119] 3157: The fourth shrapnel

[0120] 31571:Outer surface of the fourth shrapnel

[0121] 31572:The fourth concave part

[0122] 316: First groove

[0123] 12,22,32: Inner light guide

[0124] 121,221: Second storage space

[0125] 122,322: protruding structure

[0126] 13,23,33: Circuit Board

[0127] 331:convex part

[0128] 132,332: Second groove

[0129] 14,24,34: Light-emitting components

[0130] A: Axial

[0131] B: Axial

[0132] H1: First height difference

[0133] H2: Second height difference

[0134] H3: The third height difference

[0135] H4: The fourth height difference

[0136] T:Thickness DETAILED DESCRIPTION

[0137] In some embodiments of the present invention, the "light emitting direction" refers to the direction in which the light emitting element emits light. Since the light emitted from the light emitting element includes multiple light paths, in some embodiments of the present invention, the "light emitting direction" refers to the light path perpendicular to the surface of the light emitting element.

[0138] Some embodiments of the present case define an A structure (assuming but not limited to an external light guide), and the “suitable for emitting light from the A structure” means that the A structure has transparency or translucency, allowing light to penetrate without blocking the light.

[0139] The “continuous light source” described in some embodiments of the present case means that the presented light source is a surface light source.

[0140] According to some embodiments, the light bar module can be applied to various electronic products, home appliances, car lights, tires or fans, etc., to present a good special lighting visual effect. According to some embodiments, the light bar module can be applied to e-sports electronic products.

[0141] See also Figure 1 to Figure 2, is a schematic diagram of the front and back three-dimensional decomposition of the first embodiment of the light strip module 1. The light strip module 1 includes an outer light guide 11, an inner light guide 12, a circuit board 13 and a plurality of light-emitting elements 14. Among them, the two sides of the outer light guide 11 respectively include a first accommodating space 112 and a light emitting surface 111. The inner light guide 12 has a second accommodating space 121 (the opening direction of the second accommodating space 121 is the same as the opening direction of the first accommodating space 112), and the inner light guide 12 is accommodated in the first accommodating space 112. The circuit board 13 is located on the outside of the inner light guide 12 and the outer light guide 11 and contacts the side end surfaces of the inner light guide 12 and the outer light guide 11. A plurality of light-emitting elements 14 are arranged on the circuit board 13 and accommodated in the second accommodating space 121 (such as Figure 3A ), and is suitable for emitting light from the light emitting surface 111.

[0142] See also Figure 1 and Figure 2 In some embodiments, a one-piece light guide is split into a two-piece outer light guide 11 and an inner light guide 12. The light strip module 1 can refract or reflect light through the interface between the outer light guide 11 and the inner light guide 12 to achieve light divergence to even out the intensity of the light output surface, thereby achieving light mixing or eliminating hot spots. The thickness or size of the structure required for light mixing or eliminating hot spots of the one-piece light guide that is not split can be reduced, so that the light strip module 1 can still effectively avoid the generation of hot spots when the structure space is insufficient.

[0143] See also Figure 3A , is a side cross-sectional schematic diagram of the first embodiment of the light strip module. The outer light guide 11 further includes a left horizontal side wall 113, a right horizontal side wall 114 and a vertical side wall 115. Among them, the left horizontal side wall 113 and the right horizontal side wall 114 are parallel to each other. The vertical side wall 115 is perpendicular to the left horizontal side wall 113 and the right horizontal side wall 114 and connects the left horizontal side wall 113 and the right horizontal side wall 114. In addition, the left horizontal side wall 113, the right horizontal side wall 114 and the vertical side wall 115 form a first accommodating space 112. The vertical side wall 115 includes an inner wall 1151 located in the first accommodating space 112, and the inner wall 1151 is perpendicular to the left horizontal side wall 113 and the right horizontal side wall 114. The vertical side wall 115 forms a light emitting surface 111. From the cross-section of the light strip module 1, the structural appearance of the light strip module 1 is roughly a right-angled trapezoidal appearance, and the light emitting surface 111 is an inclined surface.

[0144] See also Figures 1 to 3AIn some embodiments, the axis perpendicular to the inner wall 1151 and facing the light-emitting surface 111 and the circuit board 13 respectively is defined as the axial direction A (i.e., the first axial direction), and the axis perpendicular to the left horizontal side wall 113 (or the right horizontal side wall 114) is defined as the axial direction B (i.e., the second axial direction). Axis A is perpendicular to axial B. The inner light guide 12 also includes a plurality of protruding structures 122. The protruding structure 122 is a structure that protrudes along the axial direction A and toward the circuit board 13. The protruding structure 122 includes a single perforation or a plurality of perforations. In some embodiments, the circuit board 13 includes a plurality of second grooves 132. Each protruding structure 122 is respectively engaged with each second groove 132. In some embodiments, the light strip module 1 is fixed to the product through the perforations.

[0145] See also Figure 3A and 3B In some embodiments, the light emitting direction of the light emitting element 14 is not perpendicular to the inner wall 1151, and the light effect is achieved in the form of indirect light.

[0146] See also Figure 3A In some embodiments, when the circuit board 13 is parallel to the axial direction B, the light emitting directions of the multiple light emitting elements 14 are parallel to the circuit board 13. In some embodiments, the light emitting directions of the multiple light emitting elements 14 are axial direction B. In some embodiments, the light emitting directions of the multiple light emitting elements 14 are perpendicular to the axial direction A. In some embodiments, the light emitting element 14 emits light toward the left horizontal side wall 113, but is not limited thereto. In other embodiments, the light emitting element 14 emits light toward the right horizontal side wall 114. In some embodiments, the light strip module 1 continuously refracts or reflects light through the interface between the outer light guide 11 and the inner light guide 12 to achieve light divergence to uniformize the intensity of the light emitting surface 111. In some embodiments, the light emitting direction of the light emitting element 14 is parallel to the inner wall 1151, and the light effect is achieved in the form of indirect light.

[0147] See also Figure 3B , is a side cross-sectional schematic diagram of the second embodiment of the light strip module. In some embodiments, when an acute angle is formed between the circuit board 13 and the axial direction B, the light emitting directions of the plurality of light emitting elements 14 are perpendicular to the circuit board 13, but are not limited thereto. In some embodiments, when an acute angle is formed between the circuit board 13 and the axial direction B, the light emitting directions of the plurality of light emitting elements 14 are parallel to the circuit board 13. In some embodiments, the aforementioned acute angle is 10 to 45 degrees. In some embodiments, the light emitting direction of the light emitting element 14 is not perpendicular to the inner wall 1151, and the light effect is achieved in the form of indirect light.

[0148] See also Figures 1 to 3AIn some embodiments, the light emitting element 14 is a CSP LED (Chip scale package LED), and the light emitting surface of the light emitting element 14 facing the inner light guide 12 includes a reflector, a light shielding sheet, or a diffuser. In other words, the light emitting element 14 includes a reflector, a light shielding sheet, or a diffuser on the light emitting surface facing the inner light guide 12 in the axial direction A.

[0149] See also Figures 1 to 3A In some embodiments, there is no gap between the outer light guide 11 and the inner light guide 12, but the present invention is not limited thereto. In other embodiments, there is a gap between the outer light guide 11 and the inner light guide 12, and the gap is an air layer. The air layer (not shown) at the junction of the outer light guide 11 and the inner light guide 12 is the most natural light mixing medium.

[0150] See also Figures 1 to 3A In some embodiments, the outer light guide 11 and the inner light guide 12 may be made of polystyrene (PS), polycarbonate (PC), polymethyl methacrylate (PMMA) or other polymer materials. In other embodiments, the outer light guide 11 and the inner light guide 12 may be made of polyester film (PET film). In other embodiments, the outer light guide 11 and the inner light guide 12 may be made of glass.

[0151] See also Figures 1 to 3A In some embodiments, auxiliary materials such as diffusing agents, diffusing powders, and color powders may be added to the inner light guide 12 and / or the outer light guide 11 .

[0152] See also Figures 1 to 3A In some embodiments, a higher concentration of diffusing agent is added to the outer light guide 11 relative to the inner light guide 12, so that the point light source is diffused into a uniform surface light source through the inner light guide 12 and the outer light guide 11, but the invention is not limited thereto. In other embodiments, a higher concentration of diffusing agent is added to the inner light guide 12 relative to the outer light guide 11.

[0153] In some embodiments, the light bar module 1 further includes a cover (not shown) located outside the outer light guide 11 .

[0154] See also Figures 4 to 6B , Figure 4 and Figure 5 They are respectively the front and back exploded perspective views of the third embodiment of the light bar module, Fig. 6A and Figure 6BIt is a side cross-sectional schematic diagram of the first sub-light guide 213 and the second sub-light guide 214. The light strip module 2 includes an outer light guide 21, an inner light guide 22, a circuit board 23 and a plurality of light-emitting elements 24. Among them, the two sides of the outer light guide 21 respectively include a first accommodating space 212 and a light-emitting surface 211. The inner light guide 22 has a second accommodating space 221, and the inner light guide 22 is accommodated in the first accommodating space 212. The circuit board 23 is accommodated in the first accommodating space 212, and the circuit board 23 is located on the outer side of the inner light guide 22 and contacts the side end surface of the inner light guide 22. A plurality of light-emitting elements 24 are arranged on the circuit board 23 and accommodated in the second accommodating space 221, and are suitable for emitting light from the light-emitting surface 211.

[0155] See also Figures 4 to 6B In some embodiments, the outer light guide 21 further includes a first sub-light guide 213 and a second sub-light guide 214 of a rectangular structure. The first sub-light guide 213 has a first sub-space 2134. The second sub-light guide 214 has a second sub-space 2144. The first sub-light guide 213 and the second sub-light guide 214 are arranged side by side in the axial direction of the long side, and the first sub-space 2134 and the second sub-space 2144 form a first accommodating space 212. The light strip module 2 is divided into multiple pieces (such as more than one first sub-light guide 213 and more than one second sub-light guide 214) by splitting the outer light guide 21, so as to reduce the volume, facilitate the mold design and size control of injection molding, and reduce the difficulty of injection molding of slender and long-sized optical plastic materials and the bending deformation of the injection parts.

[0156] See also Figures 4 to 6B In some embodiments, auxiliary materials such as diffusing agent, diffusing powder, color powder, etc. can be added to the inner light guide 22, the first sub-light guide 213 or the second sub-light guide 214.

[0157] See also FIG. 6A to FIG. 6BIn some embodiments, the first sub-light guide 213 includes a first horizontal sidewall 2131, a second horizontal sidewall 2132, and a first vertical sidewall 2133. The first horizontal sidewall 2131 and the second horizontal sidewall 2132 are parallel to each other. The first vertical sidewall 2133 is perpendicular to the first horizontal sidewall 2131 and the second horizontal sidewall 2132. The first vertical sidewall 2133 connects the first horizontal sidewall 2131 and the second horizontal sidewall 2132. In addition, the first horizontal sidewall 2131, the second horizontal sidewall 2132, and the first vertical sidewall 2133 form a first subspace 2134. The first vertical sidewall 2133 further includes a first inner wall 21333 located in the first subspace 2134, and the first inner wall 21333 is perpendicular to the first horizontal sidewall 2131 and the second horizontal sidewall 2132. The second sub-light guide 214 includes a third horizontal sidewall 2141, a fourth horizontal sidewall 2142, and a second vertical sidewall 2143. The third horizontal sidewall 2141 is at the same height as the first horizontal sidewall 2131. The fourth horizontal sidewall 2142 is at the same height as the second horizontal sidewall 2132. The second vertical sidewall 2143 is perpendicular to the third horizontal sidewall 2141 and the fourth horizontal sidewall 2142. The second vertical sidewall 2143 connects the third horizontal sidewall 2141 and the fourth horizontal sidewall 2142. Moreover, the third horizontal sidewall 2141, the fourth horizontal sidewall 2142 and the second vertical sidewall 2143 form a second subspace 2144. The second vertical sidewall 2143 further includes a second inner wall 21433 located in the second subspace 2144, and the second inner wall 21433 is perpendicular to the third horizontal sidewall 2141 and the fourth horizontal sidewall 2142. The first sub-light guide 213 and the second sub-light guide 214 are arranged side by side in the axial direction of the long sides, and the first subspace 2134 and the second subspace 2144 form the first accommodating space 212. The first vertical side wall 2133 and the second vertical side wall 2143 form a light emitting surface 211 .

[0158] See also FIG. 6A to FIG. 6BIn some embodiments, the first sub-light guide 213 further includes a plurality of light effect structures 2135 located on the light exit surface 211. In other embodiments, the second sub-light guide 214 further includes a plurality of light effect structures 2145 located on the light exit surface 211. In other embodiments, the spacing portions 21331 and 21432 between the plurality of light effect structures 2135 and 2145 further include a light shielding film. The light strip module 2 can make a variety of finely varied structures on the light exit surface 211 of the first sub-light guide 213 and the light exit surface 211 of the second sub-light guide 214 to present different visual effects. In some embodiments, light is emitted from the light exit surface 211 and the plurality of light effect structures 2135 and 2145. In other embodiments, since the spacing portions 21331 and 21432 between the plurality of light effect structures 2135 and 2145 include a light shielding film, light is emitted from the plurality of light effect structures 2135 and 2145. The spacing portions 21331 and 21432 are light emitting surfaces 211 without the plurality of light effect structures 2135 and 2145 .

[0159] See also FIG. 6A to FIG. 6B In some embodiments, the plurality of light effect structures 2135 and 2145 are of different lengths. FIG. 6A to FIG. 6B From the cross-section of the light bar module 2 shown, the structure of the light bar module 2 is roughly in the shape of a right-angled trapezoid, and each light effect structure 2135, 2145 is arranged in an inclined step-like shape. In some embodiments, the length of the plurality of light effect structures 2135, 2145 increases from the side close to the second horizontal side wall 2132 or the fourth horizontal side wall 2142 to the side close to the first horizontal side wall 2131 or the third horizontal side wall 2141, but is not limited thereto. In other embodiments, the length of the plurality of light effect structures 2135, 2145 decreases from the side close to the second horizontal side wall 2132 or the fourth horizontal side wall 2142 to the side close to the first horizontal side wall 2131 or the third horizontal side wall 2141.

[0160] See also Figures 7 to 9 , Figure 7 and Figure 8 is a partial stereoscopic schematic diagram and a partial stereoscopic exploded schematic diagram of the third embodiment of the light strip module 2, and Fig. 9 2 is a partial side cross-sectional schematic diagram of the outer light guide 21. The first sub-light guide 213 further includes a first fixing structure 2136 and a second fixing structure 2137. The first fixing structure 2136 extends from the first end 21311 of the first horizontal side wall 2131, and the second fixing structure 2137 extends from the second end 21321 of the second horizontal side wall 2132. The first sub-light guide 213 corresponds to the second sub-light guide 214 through the first fixing structure 2136 and the second fixing structure 2137.

[0161] See also Figures 7 to 9In some embodiments, the first fixing structure 2136 further includes a first protrusion 21361 protruding toward the second horizontal side wall 2132, and the second fixing structure 2137 further includes a second protrusion 21371 protruding toward the first horizontal side wall 2131. The second sub-light guide 214 further includes a first elastic piece 2146 and a second elastic piece 2147 connected to the second vertical side wall 2143. A first recess 21462 is formed between the first elastic piece 2146 and the third end 21411 of the third horizontal side wall 2141 to accommodate the first protrusion 21361. A second recess 21472 is formed between the second elastic piece 2147 and the fourth end 21421 of the fourth horizontal side wall 2142 to accommodate the second protrusion 21371.

[0162] See also Fig. 9 In some embodiments, the outer surface 21362 of the first fixed structure 2136 is coplanar with the outer surface 21312 of the first horizontal sidewall 2131, and the outer surface 21372 of the second fixed structure 2137 is coplanar with the outer surface 21322 of the second horizontal sidewall 2132. The outer surface 21412 of the third horizontal sidewall 2141 and the outer surface 21461 of the first elastic sheet 2146 have a first height difference H1 in the axial direction B, and the first height difference H1 is greater than or equal to the thickness of the first fixed structure 2136 in the axial direction B. The outer surface 21422 of the fourth horizontal sidewall 2142 and the outer surface 21471 of the second elastic sheet 2147 have a second height difference H2 in the axial direction B, and the second height difference H2 is greater than or equal to the thickness of the second fixed structure 2137 in the axial direction B. In some embodiments, the first height difference H1 is the same as the second height difference H2, but is not limited thereto. In other embodiments, the first height difference H1 is different from the second height difference H2.

[0163] See also Fig. 9In some embodiments, the axis perpendicular to the first inner wall 21333 and facing the light emitting surface 211 and the circuit board 23 is defined as the axis A (i.e., the first axis), and the axis connecting the first horizontal side wall 2131 to the second horizontal side wall 2132 is defined as the axis B (i.e., the second axis). In addition, the axis perpendicular to the second inner wall 21433 and facing the light emitting surface 211 and the circuit board 23 is the same as the axis A, and the axis connecting the third horizontal side wall 2141 to the fourth horizontal side wall 2142 is the same as the axis B. The axis A is perpendicular to the axis B. The projection position of the first end 21311 in the axis B is the same as the projection position of the second end 21321 in the axis B, and the first end 21311 and the second end 21321 are in the same horizontal plane. The projection position of the third end 21411 in the axis B is the same as the projection position of the fourth end 21421 in the axis B. The projection position of the first protrusion 21361 in the axis B is the same as the projection position of the second protrusion 21371 in the axis B. The projection position of the first elastic piece 2146 in the axial direction B is the same as the projection position of the second elastic piece 2147 in the axial direction B. The first elastic piece 2146 and the second elastic piece 2147 are parallel and side-by-side planar structures.

[0164] See also Fig. 9 , the side end of the first vertical side wall 2133 is a portion facing the second sub-light guide 214, and the side end of the second vertical side wall 2143 is a portion facing the first sub-light guide 213. The side end of the first vertical side wall 2133 of the first sub-light guide 213 also includes a vertical end 21332. The first end 21311, the second end 21321 and the vertical end 21332 form a first section 2138. The first section 2138 is along the axial direction A and is perpendicular to the first horizontal side wall 2131. In some embodiments, the first section 2138 is more perpendicular to the light emitting surface 211. In some embodiments, the first section 2138 is more perpendicular to the circuit board 23. In some embodiments, the side end of the second vertical side wall 2143 of the second sub-light guide 214 also includes a second section 21431. The second section 21431 is along the axial direction A and is perpendicular to the third horizontal side wall 2141. In some embodiments, the second section 21431 is more perpendicular to the light emitting surface 211. In some embodiments, the second section 21431 is more perpendicular to the circuit board 23.

[0165] See also Fig. 9In some embodiments, the projection positions of the first end 21311 and the second end 21321 in the axial direction A overlap with the vertical end 21332. In some embodiments, the first end 21311, the second end 21321 and the vertical end 21332 are coplanar. The cross sections 2138, 21431 of the side ends of the light strip module through the first sub-light guide 213 and the second sub-light guide 214 are perpendicular to the light emitting surface 211, thereby avoiding the loss of light energy, the truncation of the light path, the leakage of light or the generation of uncontrollable light refraction to affect the optical effect of the light strip module 2, and can generate a continuous light source.

[0166] See also Fig.10 , is a partial side cross-sectional schematic diagram of the outer light guide 21 of the fourth embodiment of the light strip module. The projection position of the first end 21311 in the axial direction B is different from the projection position of the second end 21321 in the axial direction B, and the first end 21311 and the second end 21321 are not in the same horizontal plane. In other words, the vertical end 21332 is an inclined surface. The projection position of the third end 21411 in the axial direction B is different from the projection position of the fourth end 21421 in the axial direction B. The projection position of the first protrusion 21361 in the axial direction B is different from the projection position of the second protrusion 21371 in the axial direction B. The projection position of the first elastic sheet 2146 in the axial direction B is different from the projection position of the second elastic sheet 2147 in the axial direction B, and the first elastic sheet 2146 and the second elastic sheet 2147 are parallel and side-by-side planar structures. In other words, the second section 21431 is an inclined surface.

[0167] See also Fig.10 In some embodiments, the projection positions of the first end 21311 and the second end 21321 in the axial direction A overlap with the vertical end 21332. In some embodiments, the first end 21311, the second end 21321 and the vertical end 21332 are coplanar.

[0168] See also Figures 11 to 13C , Fig.11 and Fig.12 2 is a perspective exploded diagram of the front and back sides of the fifth embodiment of the light bar module. FIG. 13A to FIG. 13C: is a side cross-sectional schematic diagram of the first sub-light guide, the second sub-light guide and the third sub-light guide. The structure of the light strip module 3 of the fifth embodiment is substantially the same as that of the third embodiment, and the only difference is that the outer light guide 31 also includes a third sub-light guide 315. In other words, the outer light guide 31 of the light strip module 3 of the fifth embodiment includes a first sub-light guide 313, a second sub-light guide 314 and a third sub-light guide 315. The first sub-light guide 313 and the second sub-light guide 314 of the fifth embodiment are the same as the first sub-light guide 213 and the second sub-light guide 214 of the light strip module 2 of the third embodiment. Among them, the first sub-light guide 313 of the fifth embodiment has a first sub-space 3134. The second sub-light guide 314 has a second sub-space 3144. The third sub-light guide 315 has a third sub-space 3154. The first sub-light guide 313, the second sub-light guide 314 and the third sub-light guide 315 are arranged in axial order along the long sides, and the first sub-space 3134, the second sub-space 3144 and the third sub-space 3154 form the first accommodating space 312. By splitting the outer light guide 31 into multiple pieces, the volume can be reduced, and the mold design and size control of injection molding are facilitated.

[0169] See also Figure 11 to Figure 12 In some embodiments, the four ends of the first sub-light guide 313, the second sub-light guide 314 or the third sub-light guide 315 respectively include a fixed structure or a spring, and the spring corresponds to the fixed structure. In some embodiments, the four ends of the second sub-light guide 314 all include a fixed structure, the two ends of the corresponding first sub-light guide 313 all include springs, and the two ends of the corresponding third sub-light guide 315 all include springs. In other embodiments, the four ends of the second sub-light guide 314 all include springs, the two ends of the corresponding first sub-light guide 313 all include a fixed structure, and the two ends of the corresponding third sub-light guide 315 all include a fixed structure. In other embodiments, the two ends of the second sub-light guide 314 corresponding to the first sub-light guide 313 respectively include a fixed structure and a spring, the two ends of the corresponding first sub-light guide 313 respectively include a spring and a fixed structure, and the spring corresponds to the fixed structure. Furthermore, two corresponding ends of the second sub-light guide 314 and the third sub-light guide 315 respectively include a fixing structure and a spring sheet, and two corresponding ends of the third sub-light guide 315 respectively include a spring sheet and a fixing structure, and the spring sheet corresponds to the fixing structure.

[0170] See also Fig. 13CIn some embodiments, the third sub-light guide 315 includes a fifth horizontal sidewall 3151, a sixth horizontal sidewall 3152, and a third vertical sidewall 3153. The fifth horizontal sidewall 3151 is located at the same height as the third horizontal sidewall 3141. The sixth horizontal sidewall 3152 is located at the same height as the fourth horizontal sidewall 3142. The third vertical sidewall 3153 is perpendicular to the fifth horizontal sidewall 3151 and the sixth horizontal sidewall 3152. The third vertical sidewall 3153 connects the fifth horizontal sidewall 3151 and the sixth horizontal sidewall 3152. In addition, the fifth horizontal sidewall 3151, the sixth horizontal sidewall 3152, and the third vertical sidewall 3153 form a third subspace 3154. The third vertical sidewall 3153 further includes a third inner wall 31532 located in the third subspace 3154, and the third inner wall 31532 is perpendicular to the fifth horizontal sidewall 3151 and the sixth horizontal sidewall 3152. The first sub-light guide 313, the second sub-light guide 314 and the third sub-light guide 315 are arranged in order along the axial direction of the long sides, and the first sub-space 3134, the second sub-space 3144 and the third sub-space 3154 form the first accommodating space 312. The first vertical sidewall 3133, the second vertical sidewall 3143 and the third vertical sidewall 3153 form the light emitting surface 311.

[0171] See also Figure 14 to Figure 15 , is a partial three-dimensional exploded schematic diagram of the fifth embodiment of the light strip module and a partial side cross-sectional schematic diagram of the outer light guide. The second sub-light guide 314 also includes a third fixing structure 3148 and a fourth fixing structure 3149. The third fixing structure 3148 extends from the fifth end 31413 of the third horizontal side wall 3141, and the fourth fixing structure 3149 extends from the sixth end 31423 of the fourth horizontal side wall 3142. The second sub-light guide 314 corresponds to the third sub-light guide 315 through the third fixing structure 3148 and the fourth fixing structure 3149.

[0172] See also Figure 14 to Figure 15 In some embodiments, the third fixing structure 3148 further includes a third protrusion 31481 protruding toward the fourth horizontal sidewall 3142, and the fourth fixing structure 3149 further includes a fourth protrusion 31491 protruding toward the third horizontal sidewall 3141. The third sub-light guide 315 further includes a third elastic piece 3156 and a fourth elastic piece 3157 connected to the third vertical sidewall 3153. A third recess 31562 is formed between the third elastic piece 3156 and the seventh end 31511 of the fifth horizontal sidewall 3151 to accommodate the third protrusion 31481. A fourth recess 31572 is formed between the fourth elastic piece 3157 and the eighth end 31521 of the sixth horizontal sidewall 3152 to accommodate the fourth protrusion 31491.

[0173] See also Figure 14 to Figure 15In some embodiments, the outer surface 31482 of the third fixing structure 3148 is coplanar with the outer surface 31412 of the third horizontal sidewall 3141, and the outer surface 31492 of the fourth fixing structure 3149 is coplanar with the outer surface 31422 of the fourth horizontal sidewall 3142. The outer surface 31512 of the fifth horizontal sidewall 3151 and the outer surface 31561 of the third elastic sheet 3156 have a third height difference H3 in the axial direction B, and the third height difference H3 is greater than or equal to the thickness of the third fixing structure 3148 in the axial direction B. The outer surface 31522 of the sixth horizontal sidewall 3152 and the outer surface 31571 of the fourth elastic sheet 3157 have a fourth height difference H4 in the axial direction B, and the fourth height difference H4 is greater than or equal to the thickness of the fourth fixing structure 3149 in the axial direction B. In some embodiments, the third height difference H3 is the same as the fourth height difference H4. In other embodiments, the third height difference H3 is different from the fourth height difference H4.

[0174] See also Fig.15 In some embodiments, the axis perpendicular to the third inner wall 31532 and facing the light emitting surface 311 and the circuit board 33 is defined as the axis A (i.e., the first axis), and the axis connecting the fifth horizontal side wall 3151 to the sixth horizontal side wall 3152 is defined as the axis B (i.e., the second axis). In addition, the axis perpendicular to the second inner wall 31433 and facing the light emitting surface 311 and the circuit board 33 is the same as the axis A, and the axis connecting the third horizontal side wall 3141 to the fourth horizontal side wall 3142 is the same as the axis B. The axis A is perpendicular to the axis B. The projection position of the fifth end 31413 in the axis B is the same as the projection position of the sixth end 31423 in the axis B, and the fifth end 31413 and the sixth end 31423 are in the same horizontal plane. The projection position of the seventh end 31511 in the axis B is the same as the projection position of the eighth end 31521 in the axis B. The projection position of the third protrusion 31481 in the axial direction B is the same as the projection position of the fourth protrusion 31491 in the axial direction B. The projection position of the third elastic piece 3156 in the axial direction B is the same as the projection position of the fourth elastic piece 3157 in the axial direction B. The third elastic piece 3156 and the fourth elastic piece 3157 are parallel and side-by-side planar structures.

[0175] See also Fig.16 , is a three-dimensional schematic diagram of the fifth embodiment of the light strip module. The thickness T of the outer light guide 31 and the inner light guide 32 in the axial direction A (the definition of the axial direction A is the same as described in the previous paragraph) is less than 4.5 mm. In other embodiments, the thickness T of the outer light guide 31 and the inner light guide 32 in the axial direction A is 3.5 mm to 4.5 mm. In other embodiments, the thickness T of the outer light guide 31 and the inner light guide 32 in the axial direction A is 3.7 mm, 4.0 mm or 4.2 mm.

[0176] See also Fig.17, is a partial side cross-sectional schematic diagram of the outer light guide 31 of the sixth embodiment of the light strip module. The projection position of the fifth end 31413 in the axial direction B is different from the projection position of the sixth end 31423 in the axial direction B, and the fifth end 31413 and the sixth end 31423 are not in the same horizontal plane. The projection position of the seventh end 31511 in the axial direction B is different from the projection position of the eighth end 31521 in the axial direction B. The projection position of the third protrusion 31481 in the axial direction B is different from the projection position of the fourth protrusion 31491 in the axial direction B. The projection position of the third spring piece 3156 in the axial direction B is different from the projection position of the fourth spring piece 3157 in the axial direction B, and the third spring piece 3156 and the fourth spring piece 3157 are parallel and side-by-side planar structures.

[0177] See also Fig.18 , is a partial exploded perspective view of the seventh embodiment of the light strip module. The outer light guide 31 includes a plurality of first grooves 316 ( Fig.18 To illustrate a first groove 316, as shown in FIG. Fig.12 It can be seen that there are a plurality of first grooves 316), the inner light guide 32 includes a plurality of protruding structures 322, and the circuit board 33 includes a plurality of protruding portions 331 and a plurality of second grooves 332. The protruding structure 322 is a structure that protrudes along the axial direction A (the definition of the axial direction A is the same as described in the previous paragraph) and toward the circuit board 33. The protruding portion 331 is a structure that protrudes along the axial direction B (the definition of the axial direction B is the same as described in the previous paragraph) and toward the outer light guide 31. Each protruding portion 331 is respectively engaged with each first groove 316, and each protruding structure 322 is respectively engaged with each second groove 332.

[0178] See also Fig.19A and Fig.19B , is a partial stereoscopic schematic diagram of the eighth embodiment and the ninth embodiment of the light strip module. The side end of the third vertical side wall 3153 is the portion facing the second sub-light guide 314. The side end of the third vertical side wall 3153 of the third sub-light guide 315 also includes a third section 31531. The third section 31531 is along the axial direction A and is perpendicular to the sixth horizontal side wall 3152. In some embodiments, the third section 31531 is more perpendicular to the light emitting surface 311. In some embodiments, the third section 31531 is more perpendicular to the circuit board 33. In some embodiments, the third section 31531 of the third sub-light guide 315 is designed to be parallel to the direction of light travel.

[0179] In some embodiments, Fig.19A As shown, the light emitting element 34 is disposed on the circuit board 33, and the projection position of the light emitting element 34 in the axial direction A is the same as the projection position of the third section 31531 in the axial direction A. In other embodiments, as Fig.19BAs shown, the light emitting element 34 is disposed on the circuit board 33 , and the projection position of the light emitting element 34 in the axial direction A is different from the projection position of the third section 31531 in the axial direction A.

[0180] Thus, according to some embodiments, the light strip module can reduce the thickness or size of the structure required for mixing light or eliminating hot spots of a one-piece optical plastic material through an outer light guide and an inner light guide, so that the light strip module can still effectively avoid the generation of hot spots when the structure space is insufficient. According to some embodiments, the light strip module can reduce the difficulty of injection molding of slender and long-sized optical plastic materials and the bending deformation of the injection parts through a multi-piece outer light guide, and can make a variety of fine changes in structure on the light-emitting surface of the outer light guide. According to some embodiments, the light strip module continuously refracts or reflects light through the interface between the outer light guide and the inner light guide to achieve light divergence to uniformize the intensity of the light-emitting surface. Among them, the air layer located at the junction of the outer light guide and the inner light guide is the most natural light mixing medium. According to some embodiments, if diffusion powder needs to be added to the optical plastic material, it can be added only to the outer light guide or the inner light guide, or it can be added only to one or part of the outer light guide, so as to effectively eliminate hot spots, maintain brightness and reduce the space of the mechanism. According to some embodiments, the cross section of the side end of the outer light guide of the light strip module is perpendicular to the light emitting surface, so as to avoid the loss of light energy, the truncation of the light path, the leakage of light or the generation of uncontrollable light refraction that affects the optical effect of the light strip module, and can generate a continuous light source.

Claims

1. A light bar module, characterized in that: Include: An outer light guide, with two sides respectively having a first accommodating space and a light emitting surface; An inner light guide has a second accommodation space, and the inner light guide is accommodated in the first accommodation space; as well as A circuit board is provided with a plurality of light emitting elements, each of which is accommodated in the second accommodation space and is suitable for emitting light from the light emitting surface.

2. The light bar module according to claim 1, characterized in that: The outer light guide comprises: a first sub-light guide member having a first sub-space; and A second sub-light guide has a second sub-space. The first sub-light guide and the second sub-light guide are arranged side by side. The first sub-space and the second sub-space constitute the first accommodating space.

3. The light bar module according to claim 2, characterized in that: The outer light guide also includes: A third sub-light guide has a third sub-space. The first sub-light guide, the second sub-light guide and the third sub-light guide are arranged in sequence. The first sub-space, the second sub-space and the third sub-space constitute the first accommodating space.

4. The light bar module according to claim 1, characterized in that: The outer light guide member has a plurality of light effect structures located on the light emitting surface.

5. The light bar module according to claim 1, characterized in that: The outer light guide includes a left horizontal side wall, a right horizontal side wall and a vertical side wall, the left horizontal side wall and the right horizontal side wall are parallel to each other, the vertical side wall is perpendicular to the left horizontal side wall and the right horizontal side wall, the vertical side wall includes an inner wall, the inner wall is perpendicular to the left horizontal side wall and the right horizontal side wall, the vertical side wall connects the left horizontal side wall and the right horizontal side wall, an axis perpendicular to the inner wall is defined as a first axis, an axis perpendicular to the left horizontal side wall or the right horizontal side wall is defined as a second axis, and the first axis is perpendicular to the second axis, the circuit board is parallel to the second axis, and the light emitting direction of each of the light-emitting elements is parallel to the circuit board.

6. The light bar module according to claim 1, characterized in that: The outer light guide includes a left horizontal side wall, a right horizontal side wall and a vertical side wall, the left horizontal side wall and the right horizontal side wall are parallel to each other, the vertical side wall is perpendicular to the left horizontal side wall and the right horizontal side wall, the vertical side wall includes an inner wall, the inner wall is perpendicular to the left horizontal side wall and the right horizontal side wall, the vertical side wall connects the left horizontal side wall and the right horizontal side wall, an axis perpendicular to the inner wall is defined as a first axis, an axis perpendicular to the left horizontal side wall or the right horizontal side wall is defined as a second axis, and the first axis is perpendicular to the second axis, the circuit board and the second axis form an acute angle, and the light emitting direction of each of the light emitting elements is perpendicular or parallel to the circuit board.

7. The light bar module according to claim 5, characterized in that: The thickness of the outer light guide component and the inner light guide component in the first axial direction is less than 4.5 mm.

8. The light bar module according to claim 2, characterized in that: The first sub-light guide further comprises: a first horizontal side wall; a second horizontal side wall parallel to the first horizontal side wall; and a first vertical sidewall, perpendicular to the first horizontal sidewall and the second horizontal sidewall, the first vertical sidewall comprising a first inner wall, the first inner wall being perpendicular to the first horizontal sidewall and the second horizontal sidewall, the first vertical sidewall connecting the first horizontal sidewall and the second horizontal sidewall; and The second sub-light guide further comprises: a third horizontal side wall located at the same height as the first horizontal side wall; a fourth horizontal side wall located at the same height as the second horizontal side wall; and a second vertical sidewall, perpendicular to the third horizontal sidewall and the fourth horizontal sidewall, the second vertical sidewall comprising a second inner wall, the second inner wall being perpendicular to the third horizontal sidewall and the fourth horizontal sidewall, the second vertical sidewall connecting the third horizontal sidewall and the fourth horizontal sidewall; The light-emitting surface includes the first vertical side wall and the second vertical side wall; the first sub-light guide component has a first fixed structure extending from a first end of the first horizontal side wall and a second fixed structure extending from a second end of the second horizontal side wall, and the first sub-light guide component corresponds to the second sub-light guide component through the first fixed structure and the second fixed structure.

9. The light bar module according to claim 8, characterized in that: The first fixed structure has a first protrusion protruding toward the second horizontal side wall, and the second fixed structure has a second protrusion protruding toward the first horizontal side wall; the second sub-light guide also includes a first elastic sheet and a second elastic sheet connected to the second vertical side wall, and a first recess is formed between the first elastic sheet and a third end of the third horizontal side wall to accommodate the first protrusion; a second recess is formed between the second elastic sheet and a fourth end of the fourth horizontal side wall to accommodate the second protrusion.

10. The light bar module according to claim 9, characterized in that: An axis perpendicular to the first inner wall is defined as a first axial direction, an axis connecting the first horizontal side wall to the second horizontal side wall is defined as a second axial direction, and the second axial direction is perpendicular to the first axial direction, an outer surface of the first fixed structure is coplanar with an outer surface of the first horizontal side wall, and an outer surface of the second fixed structure is coplanar with an outer surface of the second horizontal side wall; an outer surface of the third horizontal side wall and an outer surface of the first elastic sheet have a first height difference in the second axial direction, and the first height difference is greater than or equal to the thickness of the first fixed structure in the second axial direction, and an outer surface of the fourth horizontal side wall and an outer surface of the second elastic sheet have a second height difference in the second axial direction, and the second height difference is greater than or equal to the thickness of the second fixed structure in the second axial direction.

11. The light bar module according to claim 9, characterized in that: An axis perpendicular to the first inner wall is defined as a first axial direction, an axis connecting the first horizontal side wall to the second horizontal side wall is defined as a second axial direction, and the second axial direction is perpendicular to the first axial direction, and the projection position of the first end on the second axial direction is different from the projection position of the second end on the second axial direction; the projection position of the third end on the second axial direction is different from the projection position of the fourth end on the second axial direction.

12. The light bar module according to claim 9, characterized in that: An axis perpendicular to the first inner wall is defined as a first axial direction, an axis connecting the first horizontal side wall to the second horizontal side wall is defined as a second axial direction, and the second axial direction is perpendicular to the first axial direction, and the projection position of the first protrusion on the second axial direction is different from the projection position of the second protrusion on the second axial direction; the projection position of the first spring sheet on the second axial direction is different from the projection position of the second spring sheet on the second axial direction.

13. The light bar module according to claim 8, characterized in that: The outer light guide further comprises a third sub-light guide, and the third sub-light guide comprises: a fifth horizontal side wall located at the same height as the third horizontal side wall; a sixth horizontal side wall located at the same height as the fourth horizontal side wall; and a third vertical sidewall, perpendicular to the fifth horizontal sidewall and the sixth horizontal sidewall, the third vertical sidewall comprising a third inner wall, the third inner wall being perpendicular to the fifth horizontal sidewall and the sixth horizontal sidewall, the third vertical sidewall connecting the fifth horizontal sidewall and the sixth horizontal sidewall; The light-emitting surface includes the first vertical side wall, the second vertical side wall and the third vertical side wall; the second sub-light guide component has a third fixed structure extending from a fifth end of the third horizontal side wall and a fourth fixed structure extending from a sixth end of the fourth horizontal side wall, and the second sub-light guide component corresponds to the third sub-light guide component through the third fixed structure and the fourth fixed structure.

14. The light bar module according to claim 13, characterized in that: The third fixed structure has a third protrusion protruding toward the fourth horizontal side wall, and the fourth fixed structure has a fourth protrusion protruding toward the third horizontal side wall; the third sub-light guide also includes a third elastic sheet and a fourth elastic sheet connected to the third vertical side wall, and a third recess is formed between the third elastic sheet and a seventh end of the fifth horizontal side wall to accommodate the third protrusion; a fourth recess is formed between the fourth elastic sheet and an eighth end of the sixth horizontal side wall to accommodate the fourth protrusion.

15. The light bar module according to claim 14, characterized in that: An axis perpendicular to the third inner wall is defined as a first axis, an axis connecting the fifth horizontal side wall to the sixth horizontal side wall is defined as a second axis, and the second axis is perpendicular to the first axis, an outer surface of the third fixed structure is coplanar with an outer surface of the third horizontal side wall, and an outer surface of the fourth fixed structure is coplanar with an outer surface of the fourth horizontal side wall; an outer surface of the fifth horizontal side wall and an outer surface of the third elastic sheet have a third height difference in the second axis, and the third height difference is greater than or equal to the thickness of the third fixed structure in the second axis, and an outer surface of the sixth horizontal side wall and an outer surface of the fourth elastic sheet have a fourth height difference in the second axis, and the fourth height difference is greater than or equal to the thickness of the fourth fixed structure in the second axis.

16. The light bar module according to claim 14, characterized in that: An axis perpendicular to the third inner wall is defined as a first axial direction, an axis connecting the fifth horizontal side wall to the sixth horizontal side wall is defined as a second axial direction, and the second axial direction is perpendicular to the first axial direction, and the projection position of the fifth end on the second axial direction is different from the projection position of the sixth end on the second axial direction; the projection position of the seventh end on the second axial direction is different from the projection position of the eighth end on the second axial direction.

17. The light bar module according to claim 14, characterized in that: An axis perpendicular to the third inner wall is defined as a first axis, an axis connecting the fifth horizontal side wall to the sixth horizontal side wall is defined as a second axis, and the second axis is perpendicular to the first axis, the projection position of the third protrusion on the second axis is different from the projection position of the fourth protrusion on the second axis; the projection position of the third spring sheet on the second axis is different from the projection position of the fourth spring sheet on the second axis.

18. The light bar module according to claim 2, characterized in that: A first section of the side end of the first sub-light guide element is perpendicular to the light emitting surface, and a second section of the side end of the second sub-light guide element is perpendicular to the light emitting surface.

19. The light bar module according to claim 1, characterized in that: The outer light guide has a plurality of first grooves, the inner light guide has a plurality of protruding structures, the circuit board has a plurality of protruding parts and a plurality of second grooves, each of the protruding parts is respectively clamped in each of the first grooves, and each of the protruding structures is respectively clamped in each of the second grooves.

20. The light bar module according to claim 1, characterized in that: The outer light guide comprises: A first sub-light guide element, comprising: a first horizontal side wall; a second horizontal side wall parallel to the first horizontal side wall; and a first vertical sidewall, perpendicular to the first horizontal sidewall and the second horizontal sidewall, the first vertical sidewall comprising a first inner wall, the first inner wall being perpendicular to the first horizontal sidewall and the second horizontal sidewall, the first vertical sidewall connecting the first horizontal sidewall and the second horizontal sidewall, the first horizontal sidewall, the second horizontal sidewall and the first vertical sidewall forming a first subspace; A second sub-light guide element, comprising: a third horizontal side wall located at the same height as the first horizontal side wall; a fourth horizontal side wall located at the same height as the second horizontal side wall; and a second vertical sidewall, perpendicular to the third horizontal sidewall and the fourth horizontal sidewall, the second vertical sidewall comprising a second inner wall, the second inner wall being perpendicular to the third horizontal sidewall and the fourth horizontal sidewall, the second vertical sidewall connecting the third horizontal sidewall and the fourth horizontal sidewall, the third horizontal sidewall, the fourth horizontal sidewall and the second vertical sidewall forming a second subspace; and A third sub-light guide element, comprising: a fifth horizontal side wall located at the same height as the third horizontal side wall; a sixth horizontal side wall located at the same height as the fourth horizontal side wall; and a third vertical sidewall, perpendicular to the fifth horizontal sidewall and the sixth horizontal sidewall, the third vertical sidewall comprising a third inner wall, the third inner wall being perpendicular to the fifth horizontal sidewall and the sixth horizontal sidewall, the third vertical sidewall connecting the fifth horizontal sidewall and the sixth horizontal sidewall, the fifth horizontal sidewall, the sixth horizontal sidewall and the third vertical sidewall forming a third subspace; The first sub-light guide, the second sub-light guide and the third sub-light guide are arranged in sequence, the first sub-space, the second sub-space and the third sub-space constitute the first accommodating space, and the light emitting surface includes the first vertical side wall, the second vertical side wall and the third vertical side wall; The outer light guide has a plurality of light effect structures located on the light emitting surface; An axis perpendicular to the first inner wall is defined as a first axial direction, an axis connecting the first horizontal side wall to the second horizontal side wall is defined as a second axial direction, and the first axial direction is perpendicular to the second axial direction; the light emitting direction of each of the light emitting elements is the second axial direction; The first sub-light guide has a first fixing structure extending from a first end of the first horizontal side wall and a second fixing structure extending from a second end of the second horizontal side wall, and the first sub-light guide corresponds to the second sub-light guide through the first fixing structure and the second fixing structure; the second sub-light guide has a third fixing structure extending from a fifth end of the third horizontal side wall and a fourth fixing structure extending from a sixth end of the fourth horizontal side wall, and the second sub-light guide corresponds to the third sub-light guide through the third fixing structure and the fourth fixing structure; The first fixing structure has a first protrusion protruding toward the second horizontal side wall, the second fixing structure has a second protrusion protruding toward the first horizontal side wall, the third fixing structure has a third protrusion protruding toward the fourth horizontal side wall, and the fourth fixing structure has a fourth protrusion protruding toward the third horizontal side wall; The second sub-light guide further comprises a first elastic sheet and a second elastic sheet connected to the second vertical side wall, a first recess is formed between the first elastic sheet and a third end of the third horizontal side wall for accommodating the first protrusion; a second recess is formed between the second elastic sheet and a fourth end of the fourth horizontal side wall for accommodating the second protrusion; the third sub-light guide further comprises a third elastic sheet and a fourth elastic sheet connected to the third vertical side wall, a third recess is formed between the third elastic sheet and a seventh end of the fifth horizontal side wall for accommodating the third protrusion; a fourth recess is formed between the fourth elastic sheet and an eighth end of the sixth horizontal side wall for accommodating the fourth protrusion; An outer surface of the first fixing structure is coplanar with an outer surface of the first horizontal sidewall, an outer surface of the second fixing structure is coplanar with an outer surface of the second horizontal sidewall; an outer surface of the third fixing structure is coplanar with an outer surface of the third horizontal sidewall, and an outer surface of the fourth fixing structure is coplanar with an outer surface of the fourth horizontal sidewall; An outer surface of the third horizontal side wall and an outer surface of the first elastic sheet have a first height difference in the second axial direction, and the first height difference is greater than or equal to the thickness of the first fixed structure in the second axial direction; an outer surface of the fourth horizontal side wall and an outer surface of the second elastic sheet have a second height difference in the second axial direction, and the second height difference is greater than or equal to the thickness of the second fixed structure in the second axial direction; an outer surface of the fifth horizontal side wall and an outer surface of the third elastic sheet have a third height difference in the second axial direction, and the third height difference is greater than or equal to the thickness of the third fixed structure in the second axial direction; an outer surface of the sixth horizontal side wall and an outer surface of the fourth elastic sheet have a fourth height difference in the second axial direction, and the fourth height difference is greater than or equal to the thickness of the fourth fixed structure in the second axial direction; A first section of a side end of the first sub-light guide member is perpendicular to the light emitting surface, and a second section of a side end of the second sub-light guide member is perpendicular to the light emitting surface; The outer light guide has a plurality of first grooves, the inner light guide has a plurality of protruding structures, the circuit board has a plurality of protruding parts and a plurality of second grooves, each of the protruding parts is respectively clamped in each of the first grooves, and each of the protruding structures is respectively clamped in each of the second grooves.

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