22LED lighting module

Abstract

Light-emitting diode (LED) lighting module (100, 200, 300, 400) which features the following: an LED arrangement (110, 210, 310, 410) comprising at least one LED (111, 211, 311) and a side wall (115) surrounding the at least one LED (111, 211, 311); and a light guide section which is detachably coupled to the LED arrangement (110, 210, 310, 410), wherein the light guide section has at least one of the following: a diffusion section (130, 330) which has a diffusion plate (131) which disperses light emitted by the LED arrangement (110, 210, 310, 410); and a reflective section (150, 250, 350, 450) which reflects light emitted by the LED arrangement (110, 210, 310, 410), wherein the LED arrangement (110, 210, 310, 410) further comprises a plurality of first projections (116, 216, 316, 416) which are arranged on an outer surface of the side wall (115) and which project outwards from the side wall (115), wherein the light guiding section further comprises a side wall and a plurality of first insertion elements (136) which are formed in the side wall of the light guiding section at positions corresponding to the plurality of first projections (116, 216, 316, 416), wherein the plurality of first projections (116, 216, 316, 416) can be inserted into the plurality of first insertion elements (136) such that the LED arrangement (110, 210, 310, 410) and the light guiding section can be detachably coupled, wherein the light guiding section is a first light guiding section and has the diffusion section (130, 330), and the LED lighting module (100, 200, 300, 400) further has a second light guiding section which has the reflecting section (150, 250, 350, 450); wherein the dispersion section (130, 330) further comprises a plurality of second projections (138) which are arranged on an outer surface of the dispersion section (130, 330) and which project outwards from the outer surface of the dispersion section (130, 330), and wherein the reflecting section (150, 250, 350, 450) further comprises a side wall and a plurality of second insertion elements (156, 256, 356, 456) which are formed in the side wall of the reflecting section (150, 250, 350, 450) at positions corresponding to the plurality of first projections (116, 216, 316, 416), wherein the plurality of second projections (138) can be inserted into the plurality of second insertion elements (156, 256, 356, 456) such that the dispersion section (130, 330) and the reflecting section (150, 250, 350, 450) can be detachably coupled.

Description

BACKGROUND 1. Area

[0001] Devices consistent with exemplary embodiments relate to a light-emitting diode (LED) lighting module, and more precisely to an LED lighting module which is optionally coupled with a scattering section that scatters light emitted by an LED arrangement, or with a reflective section that reflects light. 2. Description of the state of the art

[0002] A light-emitting diode (LED) refers to a semiconductor device which emits light when an electric current flows, and refers to an electronic component which is a PN junction diode and may have an optical gallium arsenide (GAs) and a gallium nitride (GaN) semiconductor, and converts electrical energy into light energy.

[0003] Recently, blue LEDs and ultraviolet LEDs, which are implemented using a nitride that has superior physical and chemical characteristics, have been developed, and the application range for LEDs has expanded, as white light or monochromatic light can be produced using a blue LED or an ultraviolet LED and a fluorescent substance.

[0004] An LED can possess characteristics such as a long lifespan, small size, and light weight, and can operate at low voltage due to its strong directional properties. LEDs are also robust against shock and vibration, require no warm-up time, and are easy to operate. Therefore, LEDs can be used for a wide variety of applications. For example, the range of applications for LEDs has expanded to include small-scale illumination of mobile devices, interior lighting, exterior lighting, interior or passenger compartment lighting in cars, and backlighting for large liquid crystal displays (LCDs), among others.

[0005] The brightness or distribution angle of light emitted by the LED can be adjusted by a diffusion section, which scatters light, or by a reflective section, which reflects light.

[0006] Therefore, there is a desire for a lighting module that has a simple structure for coupling the diffusion section or the reflective section with a base arrangement equipped with an LED.

[0007] DE 10 2009 047 493 A1 discloses: The lighting device has at least one light emission opening and at least two different mounting interfaces for the optional mounting of a respective attachment element, in particular an optical element, optically behind the at least one light emission opening.

[0008] US 2009 / 0103296A1 discloses: A light-emitting device is manufactured using a plurality of light-emitting diodes (LEDs) in a light-mixing cavity formed by surrounding side walls. The side walls may be integrally formed as part of a surrounding heat sink or, alternatively, be an insert in a cavity within a heat sink. The reflective side walls may be coated with a diffusing material and / or covered with one or more phosphors. Multiple phosphors are located at various points within the cavity, such as on the side walls, on a window covering the output opening, or on a reflector attached to the bottom of the cavity. The LEDs may be arranged rotationally symmetrically about the optical axis on a circuit board.

[0009] US 1 291 444 A refers to a reflector.

[0010] US 2010 / 0237760A1 discloses a lamp comprising: a thermally conductive body; a plurality of light-emitting diodes configured as an array and thermally connected to the body; and a light-reflecting hood positioned in front of the plane of the light-emitting diodes, the hood having at least two frustoconical light-reflecting surfaces surrounding the array of light-emitting diodes and designed such that the light emitted by the lamp during operation lies within a selected emission angle.

[0011] CN 2 01 779 579 U discloses a movable solar lawn lamp that is convenient to install and use, energy-saving and belongs to the lighting lamps.

[0012] DE 203 01 294 U1 refers to a lighting device for vehicles.

[0013] DE 20 2010 002 676 U1 discloses a recessed luminaire with a base body for holding a light source and a dome-shaped reflector which can be detachably attached to the base body via a connecting device, wherein the connecting device is designed in such a way that when the base body and reflector are joined together, an optical element for influencing the light emission is received and fixed. SUMMARY

[0014] The invention is defined in the independent claims. Specific embodiments are defined in the dependent claims.

[0015] One or more exemplary embodiments can provide a light-emitting diode (LED) lighting module which has an LED arrangement which can optionally be coupled with a diffusion section which diffuses the light emitted by the LED arrangement which has LEDs, or with a reflective section, and accordingly a brightness or a distribution angle of light can be appropriately adjusted.

[0016] One or more exemplary embodiments may provide an LED lighting module which may have a simple structure for coupling an LED arrangement with a diffusion section or a reflective section, and thus attachment and replacement can be easily carried out.

[0017] One or more exemplary embodiments can provide an LED lighting module in which an LED arrangement is formed, such that it is integrated with a diffusion section, and a reflective section which reflects light can be easily coupled with the LED arrangement.

[0018] According to one aspect of an exemplary embodiment, an LED lighting module is provided which has an LED arrangement and at least one diffusion section and one reflective section, and the LED arrangement which is equipped with at least one LED has a side wall which surrounds the at least one LED, wherein the diffusion section which is detachably coupled to the LED arrangement has a diffusion plate for diffusing light which is emitted by the at least one LED, and the reflective section which is detachably coupled to one of the LED arrangement and the diffusion section reflects light which is emitted by the at least one LED.

[0019] A plurality of first projections, which protrude laterally, can be arranged on an outer surface of the side wall, and a plurality of first insertion elements, into which the plurality of first projections can be partially inserted for coupling, can be arranged on a side wall of the diffusion section corresponding to the plurality of first projections, so that the LED arrangement and the diffusion section can be detachably coupled to each other.

[0020] The first insertion element can be cut from a lower section of the side wall of the dispersion section in an ascending direction, and then cut in a lateral direction so that the first projection for coupling can be inserted into the first insertion element.

[0021] The majority of first projections can be arranged at predetermined intervals around a circumference of the side wall, and the majority of first insertion elements can be arranged on the side wall of the dispersion section at predetermined intervals, so that they correspond to placements of the majority of first projections.

[0022] A plurality of second projections, which protrude laterally, can be arranged on an outer surface of the dispersion section, and a plurality of second insertion elements, into which the plurality of first projections or the plurality of second projections can be partially inserted for coupling, can be arranged on a side wall of the reflecting section corresponding to the plurality of first projections or the plurality of second projections.

[0023] The second insertion element can be cut from a lower section of the side wall of the reflecting section in an ascending direction and then cut in a lateral direction so that the first projection or the second projection can be inserted into the second insertion element.

[0024] A curved section of the cut portion of the first insertion element may be rounded to allow the first projection to easily enter and exit.

[0025] A curved section of the cut portion of the second insertion element may be rounded to allow the first projection or the second projection to easily enter and exit.

[0026] A stopper may protrude from an inside of the first insertion element to prevent the first projection from randomly leaving the first insertion element.

[0027] A stopper may protrude from an inside of the second insertion component to prevent the first projection or the second projection from arbitrarily leaving the second insertion element.

[0028] The first insertion element can be a long slot formed in a lateral direction on the dispersion section and can have a stopper protruding from an inner end section of the first insertion element to prevent the first projection from arbitrarily leaving the first insertion element, and the second insertion element can be a long slot formed in a lateral direction on the reflecting section and can have a stopper protruding from an inner end section of the second insertion element to prevent the first projection or the second projection from arbitrarily leaving the second insertion element.

[0029] The diffusion section can be detachably coupled to a diffusion plate or a diffusion film, which is selected from a plurality of diffusion plates, in order to adjust a distribution angle of light emitted by at least one LED.

[0030] The diffusion section can include a diffusion body, which is detachably coupled to the LED arrangement, and a plate mounting attachment or a film mounting attachment, which holds the diffusion plate or diffusion film to an upper section of the diffusion body and is detachably coupled to the diffusion body.

[0031] The scattering plate can be a lens, a micropattern can be formed on at least one surface of the scattering plate, and the scattering plate can be made of a resin material filled with a scattering material and a fluorescent substance.

[0032] According to one aspect of another exemplary embodiment, an LED lighting module is provided which has an LED arrangement equipped with a plurality of LEDs, which are integrated with a diffusion section to diffuse light emitted by the plurality of LEDs, and a reflective section which is detachably coupled to the LED arrangement, which reflects light emitted by the plurality of LEDs.

[0033] The LED arrangement can have a mounting plate on which the majority of LEDs are attached at regular intervals, and a plate fastening element or film fastening element which is detachably coupled to the mounting plate in order to hold the diffusion section on the mounting plate, which is detachably coupled to an opening which opens in one direction.

[0034] A plurality of protrusions, which project in a lateral direction, can be attached to an outer surface of a side wall, and a plurality of insertion elements, into which the plurality of protrusions can be partially inserted for coupling, can be arranged on a side wall of the reflecting section corresponding to the plurality of protrusions, so that the LED arrangement and the reflecting section are detachably coupled to each other.

[0035] The insertion element can be cut from a lower section of the side wall of the reflecting section in an ascending direction and then cut in a lateral direction, or the insertion element can be a long slit formed along a lateral direction of the side wall of the reflecting section.

[0036] A stopper can protrude from an inner side of the insertion element, preventing the projection coupled to the insertion element from arbitrarily leaving the insertion element.

[0037] The scattering section can be a lens-shaped scattering plate and the reflecting section can have a trim structure.

[0038] Additional aspects, features and / or advantages are partly explained in the description that follows, and partly become obvious from the description, or can be learned by practicing the exemplary embodiments.

[0039] One or more exemplary embodiments may provide a light-emitting diode (LED) lighting module which has an LED arrangement which is optionally coupled with a diffusion section for diffusing light emitted by the LED arrangement, or with a reflective section for reflecting light, and accordingly a brightness or a distribution angle of light can be appropriately adjusted.

[0040] One or more exemplary embodiments may provide an LED lighting module which may have a simple structure for coupling an LED arrangement with a diffusion section or a reflective section, and thus attachment and replacement can be easily carried out.

[0041] One or more exemplary embodiments can provide an LED lighting module in which an LED arrangement is formed, such that it is integrated with a diffusion section, and a reflective section which reflects light can be easily coupled with the LED arrangement. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] These and other exemplary aspects, features and advantages will be obvious and readily recognized from the following description of exemplary embodiments, together with the accompanying drawings, in which: Fig. 1 a perspective exploded view of a light-emitting diode (LED) lighting module according to an exemplary embodiment; Fig. 2 a perspective view of the LED lighting module of the Fig. 1 is; Fig. 3 a front view of the LED lighting module of the Fig. 2 is; Fig. 4. An enlarged view of a section of the LED lighting module of the Fig. 3 is; Fig. 5 a top view of a configuration of the LED lighting module, excluding a reflective section of the Fig. 3 is; Fig. 6 is a diagram which shows examples of a light distribution angle, which is calculated using the dispersion section of the Fig. 2 is adapted, illustrated; Fig. 7 is a perspective exploded view of an LED lighting module according to another exemplary embodiment; Fig. 8 a front view of the LED lighting module of the Fig. 7 is; Fig. 9 a perspective exploded view of an LED lighting module according to yet another exemplary embodiment; Fig. 10 a front view of the LED lighting module of the Fig. 9; and Fig. 11 is a front view of an LED lighting module according to yet another exemplary embodiment. DETAILED DESCRIPTION

[0043] Reference will now be made in detail to exemplary embodiments, which are illustrated in the attached drawings, whereby the same reference numerals refer throughout to the same elements.

[0044] Fig. Figure 1 illustrates a perspective exploded view of a light-emitting diode (LED) lighting module 100 according to an exemplary embodiment. Fig. Figure 2 illustrates a perspective view of the LED lighting module 100 of the Fig. 1. Fig. Figure 3 illustrates a front view of the LED lighting module 100 of the Fig. 2. Fig. Figure 4 illustrates an enlarged drawing of a section of the LED lighting module 100. Fig. 3. Fig. Figure 5 illustrates a top view of a configuration of the LED lighting module of the Fig. 3 exclusively a reflective section.

[0045] Referring to the Fig. 1 and Fig. 2 The LED lighting module 100 comprises an LED arrangement 110, a diffusing section 130, and a reflective section 150. The LED arrangement 110, which is equipped with a plurality of LEDs 111, may have a side wall 115 to enclose or encompass the plurality of LEDs 111. The diffusing section 130 is detachably coupled to the LED arrangement 110 and may include a diffusing plate 131 for diffusing light emitted by the LEDs 111. The reflective section 150 is detachably coupled to the diffusing section 130 and may include a reflective section 150 for reflecting light emitted by the LEDs 111.

[0046] Accordingly, light emitted by the LEDs 111 can be scattered by the scattering section 130 and can be reflected by the reflecting section 150 to provide light.

[0047] This document will describe each element of the LED lighting module.

[0048] The LED arrangement 110 can have a mounting plate 112, to which the LEDs 111 are coupled at regular intervals, so that the arrangement of LEDs has a predetermined shape, and a side wall 115, which is coupled to the mounting plate 112 along the periphery or circumference of an upper section of the mounting plate 112 in order to enclose or surround the majority of LEDs 111.

[0049] The plurality of LEDs 111 can emit light when the LEDs 111 are connected to a printed circuit board (PCB = Printed Circuit Board) (not shown) on the mounting plate 112 and supplied with current. Although a plurality of LEDs 111 is described herein, as illustrated in the drawings, the LED arrangement 110 can also include a single LED if the single LED provides the desired amount of light. Each LED 111 can have a semiconductor layer of a first type, an active layer, and a semiconductor layer of a second type, and can emit light by performing recombination between an electron and a hole when a voltage is applied.

[0050] The LED assembly 110, configured as described above, can be used as a single product. For example, the LED assembly 110 can be used as a lighting unit, such as a local lighting unit, since the LED assembly 110 can have a structure that provides satisfactory light quality.

[0051] The diffusion section 130 can be detached from the LED arrangement 110, as opposed to being integrated with the LED arrangement 110, and therefore the LED lighting module 110 can be used in various combinations.

[0052] The scattering section 130 can scatter and mix light emitted by the LEDs 111 of the LED arrangement 110 in order to reduce a film defect (artifact) that occurs in the LED arrangement 110 in which the LEDs 111 are arranged.

[0053] As in Fig. As illustrated in Figure 1, the diffusion section 130 can include the diffusion plate 131, which is also referred to as a diffusion film 131 in the present embodiment, a diffusion body 132 which is detachably coupled to the side section wall 115 of the LED arrangement 110, and a plate mounting attachment or film mounting attachment 135 which is detachably coupled to the diffusion body 132, which attaches the diffusion film 131 to an upper section of the diffusion body 132.

[0054] The plate mounting attachment or film mounting attachment 135 and the diffusion body 132 can be coupled to each other. A selected diffusion film 131 can be placed on an upper section of the diffusion body 132, and then the film mounting attachment 135 can be arranged on an upper section of the diffusion film 131 such that the diffusion film 131 is held between the diffusion body 132 and the film mounting attachment 135. In this example, the coupling between the diffusion body 132 and the film mounting attachment 135 can be a clamping coupling or the like; however, examples of the coupling structure are not limited to this.

[0055] Here, the diffusing film 131 is an element that directly disperses and mixes the light emitted by the LEDs 111. It can be a type of lens or a transparent plastic, glass, semi-transparent plastic, or the like, based on polycarbonate (PC) or polymethyl methacrylate (PMMA). The color of the light emitted by the LED 111 can be further modified by incorporating a fluorescent substance into the diffusing film 131. Likewise, the brightness of the light output can be appropriately adjusted based on the type of diffusing film 131 used.

[0056] As an example, a micropattern can be formed on at least one surface of the diffusing film 131. The micropattern can improve a light diffusion effect. In this example, the diffusing film 131 can be made of a transparent material to which no diffusing material has been added, or it can be made of a transparent material to which a diffusing material has been added.

[0057] As described above, the LED lighting module 100 can be in a structure in which the LED arrangement 110 and the diffusion section 130 are detachably coupled to each other.

[0058] Accordingly, a plurality of first projections 116, which protrude in an outward direction, can be formed on the side wall 115 of the LED arrangement 110, and a plurality of first insertion elements 136, into which the plurality of first projections 116 can be partially inserted, can be formed on a side wall of the diffusion body 132 of the diffusion section 130.

[0059] The LED assembly 110 and the diffusion section 130 can be positioned and coupled together, and the diffusion section 130 can then be rotated in one direction relative to the LED assembly 110 so that the diffusion section 130 is coupled to the LED assembly 110. Disassembly can also be easily carried out in the reverse manner.

[0060] As in Fig. As illustrated in Figure 5, the majority of first projections 116 can be formed along a circumference of the side wall 115 of the LED arrangement 110 at uniform intervals. Although three first projections 116 in Fig. As illustrated in Figure 5, the number of first projections is not limited. Likewise, the majority of first projections cannot be arranged at regular intervals.

[0061] Three first insertion elements 136 can be arranged at uniform intervals along a circumference of the dispersion body 132, such that they correspond to the plurality of first projections 16. As in Fig. As illustrated in Figure 4, the first insertion element 136 can be cut from a lower section of the side wall of the dispersion body 132 in an upward direction or upper direction and can then be cut in a lateral direction to guide the first projection 116.

[0062] This means that the diffusion section 130 can be positioned on or at the LED assembly 110 and coupled to it, so that the first projection 116 of the LED assembly 110 can be inserted into a section 136a of the first insertion element 136, which is cut in an upward direction of the diffusion section 130. Subsequently, when the diffusion section 130 is rotated relative to the LED assembly 110, the first projection 116, together with a section 136b cut in a lateral direction of the first insertion element 136, can be inserted into an inner surface and held there.

[0063] In this example, to enable the first projection 116 to be inserted smoothly and easily into the first insertion element 136, a curved section 136c can be provided between the section 136a, which is cut in the upward direction of the first insertion element 136, and the section 136b, which is cut in the lateral direction, as shown in Fig. As shown in Figure 4, the first projection 116 can be easily inserted into the mainly inner section of the first insertion element 136 via or through the path of the first insertion element 136.

[0064] As in Fig. As illustrated in Figure 4, a stopper 137, which is formed in a protruding shape, can be contained in the mainly inner section of the first insertion element 136. The stopper 137 can prevent the first projection 116 from randomly leaving the first insertion element 136 when the first projection 116 is held in the first insertion element 136 based on a coupling between the LED arrangement 110 and the diffusion section 130.

[0065] Therefore, the LED arrangement 110 and the diffusion section 130 can be easily coupled and separated, and therefore the LED arrangement 110 can be used independently or it can be used by coupling with the diffusion section 130.

[0066] The reflective section 150 can be combined with the scattering section 130, as in the Fig. As illustrated in 1 to 3, the components can be detachably coupled and can therefore reflect light emitted by the LED 111 which has been scattered and mixed by the diffusion section 130.

[0067] The reflecting section 150 can have a reflecting body 151 in the form of a hollow cylinder which includes or surrounds at least an upper section of the diverging body 132, and can have an enlarged body 155 to reflect light, the diameter of which is progressively enlarged from an upper section of the reflecting body 151 to an end of the enlarged body 155.

[0068] The reflecting section 150 can also have a structure that is solvably coupled to the scattering section 130. In this example, a coupling structure between the reflecting section 150 and the scattering section 130 can be simple, and therefore coupling and solution can be easily performed.

[0069] According to the coupling structure, a plurality of second projections 138, which protrude in an outward direction, can be formed on an outer side wall of the dispersion body 132 of the dispersion section 130, and a plurality of second insertion elements 156, into which the plurality of second projections 138 can be inserted, can be formed on a side wall of the reflecting body 151 of the reflecting section 150. The configurations of the second projecting sections 138 and the second insertion elements 156 can be essentially the same as those of the first projections 116 and the first insertion elements 136, and therefore detailed descriptions of them will only be provided in broad terms.

[0070] Similar to the coupling structure between the diffusion section 130 and the LED array 110, the reflective section 150 can be positioned on or attached to the diffusion section 130 and then coupled to it. During coupling, the second projection 138, formed on the diffusion body 132, can be inserted into a section of the second insertion element 156 that is cut in an upward direction along the surface of the reflective body 151. Subsequently, when the reflective section 150 is rotated relative to the diffusion section 130, the second projections 138 can be inserted into an inner section along a portion of the second insertion element 156 that is cut in a lateral direction, and they can be held in place there.

[0071] In this example, a curved section in the internal structure of the second insertion element 156 can be rounded in the same way as the internal structure of the first insertion elements 136, and a stopper (not illustrated), which is essentially the same as the stopper 137, can be included at an inner end section to prevent the second projections 138 from arbitrarily leaving the second insertion elements 136.

[0072] Fig. Figure 6 illustrates examples of a light distribution angle, which is determined using the dispersion section of the Fig. 2 is adapted. Referring to Fig. 6 The light distribution angle can be adjusted using the diffusion film 131, which is contained in the diffusion section 130.

[0073] The example in the upper left corner of Fig. Figure 6 shows a light distribution angle of 120 degrees when light is emitted solely through the LED arrangement 110, without it being coupled to the diffusion section 130. The remaining examples of Fig. Figure 6 shows the light distribution angle when the diffusion section 130 and the LED arrangement 110 are coupled together. The light distribution angle can be appropriately adjusted to 100 degrees, 90 degrees, 80 degrees, or the like by a suitable selection from among a plurality of diffusion films, wherein the diffusion film 131 is to be coupled with the diffusion section 130.

[0074] According to this exemplary embodiment, the LED arrangement 110 and the diffusion section 130 can be easily coupled and separated from each other, and the diffusion film 131 contained in the diffusion section 130 can be appropriately selected, and thus the brightness of light, the light distribution angle, and the like can be appropriately adjusted.

[0075] The following describes an LED lighting module according to another exemplary embodiment, and sections which are essentially the same as section 100 of the LED lighting module of the exemplary embodiment described above will be omitted for the sake of brevity.

[0076] Fig. Figure 7 illustrates a perspective exploded view of an LED lighting module 200 according to another exemplary embodiment and Fig. Figure 8 illustrates a front view of the LED lighting module 200 of the Fig. 7.

[0077] Referring to the Fig. 7 and Fig. Figure 8 shows that the LED lighting module 200 has an LED assembly 210 and a reflective section 250, which are essentially the same as the LED assembly 110 and the reflective section 150. However, the LED assembly 210 can be directly coupled to the reflective section 250 as a housing structure or package structure, unlike the scheme in which an LED assembly is coupled to a diffusion section and then a reflective section is coupled to the diffusion section.

[0078] Accordingly, light emitted by the LED arrangement 210 can be guided through the reflective section 250.

[0079] A coupling structure of the LED arrangement 210 and the reflective section 250 will be described based on the coupling structure between the LED arrangement 110 and the scattering section 130 and the coupling structure between the scattering section 130 and the reflective section 150. A plurality of protrusions 216 can be formed on the LED arrangement 210, and a plurality of insertion elements 256, corresponding to the plurality of protrusions 216, can be formed on the reflective section 250.

[0080] Therefore, as in the Fig. 7 and Fig. As illustrated in Figure 8, the reflective section 250 can be positioned on or attached to the LED assembly 210 and then coupled to it. The projection 216, which is equipped with the LED assembly 210, can be inserted into a section of the insertion element 256 that is cut in an upward direction, i.e., in the upper direction of the reflective section 250. Subsequently, when the reflective section 250 is rotated relative to the LED assembly 210, the projection 216 can be inserted into an inner section along a portion of the insertion element 256 that is cut in a lateral direction and can be held there.In this example, a curved section of the insertion element 256 can be rounded to allow easy insertion of the projection 216 into the insertion element 256, and a stopper 257 can be included on an inner end section of the insertion element 256 to prevent the projection 216 from arbitrarily leaving the insertion element 256.

[0081] As described above, the reflective section 250, which reflects light directly without a diffusion section, can be detachably coupled to the LED arrangement 210. Therefore, light emitted by an LED 211 of the LED arrangement 210 can be reflected directly.

[0082] A diffusing foil (not shown), corresponding to the diffusing foil 131 described above, can be coupled with the reflective section 250 for diffusion of light.

[0083] The following describes an LED lighting module according to yet another exemplary embodiment, and sections which are essentially the same as those described above with regard to the embodiments described above will be omitted for the sake of brevity.

[0084] Fig. Figure 9 illustrates a perspective exploded view of an LED lighting module 300 according to another exemplary embodiment and Fig. Figure 10 illustrates a front view of the LED lighting module 300 of the Fig. 9.

[0085] Referring to the Fig. 9 and Fig. The LED lighting module can comprise an LED assembly 310 and a reflective section 350. The LED assembly 310 can include a plurality of LEDs 311 and a diffusion section 330 for diffusing light emitted by the LEDs. The reflective section 350, which is detachably coupled to the LED assembly 310, can reflect light emitted by the LEDs 311. Although the illustrated reflective section 350 has an upper section formed in the shape of a funnel, the shape of the reflective section 350 is not limited to this.

[0086] The diffusion section 330, i.e., a diffusion film of lens type 330, can be integrated with the LED arrangement 310. Consequently, a coupling structure between the LED arrangement 310 and the diffusion section 330 can be simple, and light emitted by the LEDs 311 can be diffused and mixed and emitted through the reflecting section 350.

[0087] Referring to the Fig. 9 and Fig. 10 The LED arrangement 310 can have a mounting plate 312 on which the majority of LEDs 311 are attached at uniform intervals, and a foil fastening element 315 which is detachably coupled to the mounting plate 312, and the diffusion section 130 can be coupled to an opening of a foil fastening element 315 which opens in one direction.

[0088] The diffusion section 330 can be a diffusion film of lens type 330 and can be arranged on an inner side of the opening of the film fastening element 315. The diffusion film 330 can be positioned by placing it between the mounting plate 312 and the film fastening element 315 and coupling them together.

[0089] The LED arrangement 310 can have a structure that allows for easy coupling and disconnection, and thus a user can appropriately select from a plurality of diffusion sections the diffusion section 330 that provides a desired light distribution angle. A micro-pattern can be formed on the diffusion film 330, and the diffusion film 330 can be made of a resin material filled with a diffusion material and a fluorescent substance. However, the material of the diffusion film 330, the pattern formed on an outer surface, and the like are not limited to this.

[0090] The LED device 310 and the reflective section 350 can be coupled in essentially the same way as the coupling structures of the embodiments described above. That is, a plurality of projections 316 can be formed on an outer side surface of the film fastening component 315 of the LED assembly 310, and a plurality of insertion elements 356 can be formed on the reflective section 350, corresponding to the plurality of projections 316.

[0091] Therefore, the LED assembly 310 and the reflective section 350 can be coupled together. Subsequently, when the reflective section 350 is rotated relative to the LED assembly 310, the projection 316 of the LED assembly 310 can be inserted into an inner surface of the insertion element 356 of the reflective section 350 and held there.

[0092] The following describes an LED lighting module according to yet another exemplary embodiment, and sections which are essentially the same as those described with regard to LED lighting modules 100, 200 and 300 will be omitted for the sake of brevity.

[0093] Fig. Figure 11 illustrates a front view of an LED lighting module 400 according to yet another exemplary embodiment.

[0094] As in Fig. As illustrated in Figure 11, the LED lighting module can be essentially the same as the LED lighting module 300, but it can have a different structure for coupling an LED device 410 with a reflective section 450.

[0095] The LED arrangement 410 can be equipped with a projection 416 and an insertion element 456 of the slot type can be formed on the reflective section 450.

[0096] This means that the insertion element 456 can be formed along a lateral direction of a side wall of the reflective section 450 and can be coupled to the insertion element 456 by forcefully or forcibly inserting the projection 416 into the insertion element 456. In this example, after the reflective section 450 is placed in the correct position on the LED assembly 410, slight pressure is applied to the reflective section 450 with respect to the LED assembly 410, and the projection 416 can be forcibly inserted into an inner surface of the insertion element 456 for coupling.

[0097] Subsequently, if the reflective section 450 is rotated in one direction with respect to the LED arrangement 410, the projection 416 can be held by a stopper 457 of the insertion element 456.

[0098] Although the insertion element 456, which is formed on the reflective section 450, may be designed as a slot type, as shown in Fig. As shown in Figure 11, the shape of the insertion element 456 is not limited to this. Furthermore, in other embodiments, the insertion element can also be provided as a slot-type insertion element.

[0099] Likewise, a different type of coupling structure can be used, in which the coupling structure has a simple structure and allows an insertion element and a projection to be detachably coupled together.

Claims

[1] Light-emitting diode (LED) lighting module (100, 200, 300, 400) comprising the following: an LED arrangement (110, 210, 310, 410) comprising at least one LED (111, 211, 311) and a side wall (115) surrounding the at least one LED (111, 211, 311); and a light guide section which is detachably coupled to the LED arrangement (110, 210, 310, 410), wherein the light guide section has at least one of the following: a diffusion section (130, 330) which has a diffusion plate (131) which disperses light emitted by the LED arrangement (110, 210, 310, 410); and a reflective section (150, 250, 350, 450) which reflects light emitted by the LED arrangement (110, 210, 310, 410), wherein the LED arrangement (110, 210, 310, 410) further comprises a plurality of first projections (116, 216, 316, 416) which are arranged on an outer surface of the side wall (115) and which project outwards from the side wall (115), wherein the light guiding section further comprises a side wall and a plurality of first insertion elements (136) which are formed in the side wall of the light guiding section at positions corresponding to the plurality of first projections (116, 216, 316, 416), wherein the plurality of first projections (116, 216, 316, 416) can be inserted into the plurality of first insertion elements (136) such that the LED arrangement (110, 210, 310, 410) and the light guiding section can be detachably coupled, wherein the light guiding section is a first light guiding section and has the diffusion section (130, 330), and the LED lighting module (100, 200, 300, 400) further has a second light guiding section which has the reflecting section (150, 250, 350, 450); wherein the dispersion section (130, 330) further comprises a plurality of second projections (138) which are arranged on an outer surface of the dispersion section (130, 330) and which project outwards from the outer surface of the dispersion section (130, 330), and wherein the reflecting section (150, 250, 350, 450) further comprises a side wall and a plurality of second insertion elements (156, 256, 356, 456) which are formed in the side wall of the reflecting section (150, 250, 350, 450) at positions corresponding to the plurality of first projections (116, 216, 316, 416), wherein the plurality of second projections (138) can be inserted into the plurality of second insertion elements (156, 256, 356, 456) such that the dispersion section (130, 330) and the reflecting section (150, 250, 350, 450) can be detachably coupled. [2] LED lighting module (100, 200, 300, 400) according to claim 1, wherein each of the first insertion elements (136) has an L-shaped slot cut into the side wall of the light guiding section, the L-shaped slot having a vertical section (136a) cut in an ascending direction and a horizontal section (136b) cut in a lateral direction. [3] LED lighting module (100, 200, 300, 400) according to claim 1, wherein the plurality of first projections (116, 216, 316, 416) are arranged at equal intervals around the outer surface of the side wall (115). [4] LED lighting module (100, 200, 300, 400) according to claim 1, wherein each of the second insertion elements (156, 256, 356, 456) has an L-shaped slot cut out of the side wall of the reflective section (150, 250, 350, 450), the L-shaped slot having a vertical section cut out in an upward direction and a horizontal section cut out in a lateral direction. [5] LED lighting module (100, 200, 300, 400) according to claim 2, wherein a corner where the vertical section (136a) meets the lateral section (136b) of the first insertion element (136) is rounded. [6] LED lighting module (100, 200, 300, 400) according to claim 4, wherein a corner where the vertical section meets the lateral section of the second insertion element (156, 256, 356, 456) is rounded. [7] LED lighting module (100, 200, 300, 400) according to claim 2, wherein a stopper (137) protrudes from an inside of the first insertion element (136) to prevent the first projection (116, 216, 316, 416) from arbitrarily leaving the first insertion element (136). [8] LED lighting module (100, 200, 300, 400) according to claim 4, wherein a stopper (257, 457) protrudes from an inside of the second insertion element (156, 256, 356, 456) to prevent the first projection (116, 216, 316, 416) or the second projection (138) from arbitrarily leaving the second insertion element (156, 256, 356, 456). [9] LED lighting module (100, 200, 300, 400) according to claim 1, wherein: the first insertion element (136) is a lateral slot formed in the side wall of the dispersion section (130, 330) and has a stopper (137) projecting from an inner end section of the first insertion element (136) to prevent the first projection (116, 216, 316, 416) from arbitrarily leaving the first insertion element (136); and the second insertion element (156, 256, 356, 456) is a lateral slot formed in the side wall of the reflective section (150, 250, 350, 450) and has a stopper (257, 457) which protrudes from an inner end section of the second insertion element (156, 256, 356, 456) to prevent the second projection (138) from arbitrarily leaving the second insertion element (156, 256, 356, 456). [10] LED lighting module (100, 200, 300, 400) according to claim 1, wherein: the light guiding section has the dispersion section (130, 330), and the diffusion section (130, 330) has a removable diffusion foil or diffusion plate (131) which changes the distribution angle of light emitted by the at least one LED (111, 211, 311). [11] LED lighting module (100, 200, 300, 400) according to claim 10, wherein the diffusion section (130, 330) further comprises: a diffusion body which is detachably coupled to the LED arrangement (110, 210, 310, 410); and a plate or foil mounting cover which attaches the scattering plate or foil (131) to an upper section of the scattering body and is detachably coupled to the scattering body. [12] LED lighting module (100, 200, 300, 400) according to claim 10, wherein the diffusing plate or film (131) is a lens and a micropattern is formed on at least one surface of the lens, and wherein the lens is formed from a resin material which is filled with a diffusing material and a fluorescent substance. [13] Light-emitting diode (LED) lighting module (300) comprising the following: an LED arrangement (310) comprising a plurality of LEDs, and a diffusion section (330) which disperses light emitted by the plurality of LEDs (311); and a reflective section (350) which is detachably coupled to the LED arrangement (310), wherein the reflective section (350) reflects light emitted by the plurality of LEDs (311), wherein the LED arrangement (310) further comprises a plurality of first projections (316) which are arranged on an outer surface of a side wall and which project outwards from the side wall, wherein the reflective section (350) has a plurality of first insertion elements (356) which are formed in the reflective section (350) at positions corresponding to the plurality of first projections (316), and wherein the majority of first projections (316) can be inserted into the majority of first insertion elements (356) such that the LED arrangement (310) and the reflective section (350) can be detachably coupled. [14] LED lighting module (300) according to claim 13, wherein the LED arrangement (310) comprises: a mounting plate on which the majority of LEDs (311) are mounted at regular intervals, and a plate or foil fastening element which is detachably coupled to the mounting plate, wherein the plate or foil fastening element detachably holds the dispersion section (330). [15] Light-emitting diode (LED) lighting module (100, 200, 300, 400) comprising the following: an LED arrangement (110, 210, 310, 410) comprising an LED (111, 211, 311) and a side wall (115) surrounding the LED (111, 211, 311); a diffusion section (130, 330) which has a diffusion plate or film (131) and is detachably coupled to the side wall (115) of the LED arrangement (110, 210, 310, 410) such that the diffusion plate or film (131) is arranged above the LED (111, 211, 311); a reflective section (150, 250, 350, 450) which has a reflector and is detachably coupled to a side wall of the diffusion section (130, 330) such that light which is transmitted through the diffusion plate or film (131) is reflected by the reflector; a plurality of first projections (116, 216, 316, 416) which protrude outwards from the side wall (115) of the LED arrangement (110, 210, 310, 410); a plurality of first insertion sections which are formed in the dispersion section (130, 330) at positions which correspond to positions of the plurality of first projections (116, 216, 316, 416), wherein the plurality of first projections (116, 216, 316, 416) can be inserted into the plurality of first insertion sections; a plurality of second projections (138) which extend outwards from the side wall of the dispersion section (130, 330); and a plurality of second insertion sections which are formed in the reflecting section (150, 250, 350, 450) at positions which correspond to positions of the plurality of first projections (116, 216, 316, 416), wherein the plurality of second projections (138) can be inserted into the plurality of second insertion sections. [16] LED lighting module (100, 200, 300, 400) according to claim 15, wherein a light distribution angle of light emitted by the LED arrangement (110, 210, 310, 410) without passing through the diffusion section (130, 330) and the reflecting section (150, 250, 350, 450) is greater than a light distribution angle of light emitted by the LED arrangement (110, 210, 310, 410) which has passed through the diffusion section (130, 330) and the reflecting section (150, 250, 350, 450).

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