LED module and lighting device including same

Abstract

An embodiment of the present disclosure relates to an LED module and a lighting device including same. The LED module comprises: an LED substrate elongated in the longitudinal direction and having on one surface thereof a plurality of LED elements which are arranged in the longitudinal direction and generate and emit light; a plate-type heat dissipation fin coupled to the other surface of the LED substrate so as to receive heat generated from the plurality of LED elements and exchange the heat with outside air, the plate-type heat dissipation fin extending in the direction opposite to the light emission direction of the LED elements so as to increase the heat exchange surface area through which heat is exchanged with the outside air; and an installation bracket disposed between the LED substrate and the heat dissipation fin so as to mediate the mutual coupling between the LED substrate and the heat dissipation fin. In addition, the lighting device includes a plurality of LED modules and a power supply device for supplying power to the plurality of LED modules by a switching operation.

Description

LED module and lighting device including same

[0001] The present invention relates to an LED module and a lighting device including the same, and more particularly, to an LED module and a lighting device including the same, which can easily replace only the corresponding module in the event of a malfunction or failure of some components, and which can reduce weight and maximize heat dissipation performance.

[0002]

[0003] In general, a lighting device includes an LED substrate on one surface of which a plurality of LED elements are mounted in a predetermined pattern, and a heat dissipation housing having a plurality of heat dissipation fins integrally formed on the other surface of the LED substrate for dissipating heat generated from the plurality of LED elements is provided.

[0004] Here, the heat dissipation housing and the plurality of heat dissipation fins formed integrally therewith are generally made of a metal material with excellent thermal conductivity (preferably aluminum (or alloy aluminum) material), and are formed integrally by a mold manufacturing method to secure manufacturing advantages.

[0005] Korean Patent Publication No. 10-1668265 (October 24, 2016) (hereinafter referred to as “prior art”) discloses a “high-power LED lighting device” having a plurality of heat dissipation fins provided in a case portion, which is the heat dissipation housing.

[0006] The above-mentioned conventional technology comprises a case part having a plurality of heat dissipation fins provided on the back surface and an open front surface, a substrate coupled to the inside of the case part and having a plurality of LEDs mounted thereon spaced apart at set intervals in the row and column directions, a lighting part having a reflection module having a plurality of light reflectors coupled to the front surface of the substrate so that the sides are in contact with each other to reflect and distribute light from each of the LEDs, a support frame part supporting the central portions of both sides of the lighting part, a power supply part fixed to a part of the support frame part but positioned at a position spaced apart from the lighting part and supplying power to the substrate, and an angle adjustment part having one end hinged to the upper portion of the lighting part and the other end hinged to the power supply part and adjusting the angle of the lighting part by varying the length, wherein the angle adjustment part comprises a screw having one end hinged to the lighting part, a receiving part having one end hinged to the power supply part and receiving the screw at the other end, and an idling state at the other end of the receiving part for adjusting the amount of the screw introduced into the receiving part. It is characterized by being composed of a rotary adjustment unit.

[0007] However, the above conventional technology has a problem in that, since a plurality of LEDs are mounted on a single substrate, if a malfunction or failure occurs in any one part of the LEDs, the entire substrate must be replaced.

[0008] In addition, the above-mentioned conventional technology has a problem in that the weight of the product increases because the case part must be provided for the integral molding of the plurality of heat dissipation fins, and the heat dissipation performance of the plurality of heat dissipation fins is limited because they depend on the thermal conductivity of the material itself.

[0009]

[0010] The technical task of the present invention is to provide an LED module and a lighting device including the same, which are provided so that an LED substrate on which an LED element is mounted is manufactured in a straight longitudinal direction and then combined in a modular manner to complete a single lighting device, thereby improving A / S quality performance and facilitating maintenance and repair.

[0011] Another technical task of the present invention is to provide an LED module and a lighting device including the same that can improve the emotional quality of a product by minimizing the phenomenon of glare to consumers caused by light irradiated from an LED element.

[0012] Another technical task of the present invention is to provide an LED module and a lighting device including the same that can reduce the weight of the entire product and improve device efficiency by maximizing heat dissipation performance.

[0013] The technical problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

[0014]

[0015] In order to achieve the above object, an LED module according to the present invention comprises: an LED substrate formed lengthwise and having a plurality of LED elements arranged lengthwise to generate and radiate light on one surface; a heat dissipation fin coupled to the other surface of the LED substrate to receive heat generated from the plurality of LED elements and exchange heat with the outside air, but extending so as to increase a heat exchange surface area for heat exchange with the outside air in a direction opposite to a light irradiation direction of the LED elements; and an installation bracket disposed between the LED substrate and the heat dissipation fin to mediate mutual coupling between the LED substrate and the heat dissipation fin.

[0016] Here, the heat dissipation fin may be formed by bending and joining a single metal base panel or joining the edge ends of two metal base panels to form a refrigerant flow space in which the refrigerant filled inside flows, and the end corresponding to the lower part relative to the direction of gravity (hereinafter referred to as the 'evaporation end') may be inserted into the installation bracket and then joined and fixed.

[0017] In addition, when defining a portion of the above heat dissipation fins other than the evaporation portion as a condensation portion, the evaporation portion may be a portion directly below the condensation portion and may be a lower portion based on the direction of gravity.

[0018] In addition, the installation bracket includes a first installation bar having a one-side installation groove formed so that one side of the evaporation end of the heat dissipation fin is installed in contact with it, and a second installation bar having a second-side installation groove formed so that the other side of the evaporation end of the heat dissipation fin is installed in contact with it, and the heat dissipation fin can be fixed in a predetermined bonding manner in a state where the evaporation end is inserted into the one-side installation groove and the other-side installation groove of the first installation bar.

[0019] In addition, the above-described joining method may include either a welding joining method or an epoxy treatment joining method.

[0020] In addition, a light guide is provided on the lower surface, which is coupled to the lower portion of the above-described installation bracket and guides downward irradiation of light generated from the plurality of LED elements, and a support housing bar that mediates module coupling to a power supply unit (Switching Mode Power Supply, SMPS) may be further included.

[0021] In addition, the heat dissipation fin is made of SUS (stainless steel) material, and the refrigerant filled in the refrigerant flow space of the heat dissipation fin is formed of a phase-changeable material that is in a liquid state at room temperature and can be evaporated into a gaseous state by heat transferred from the LED element, but can be formed of water that does not cause a chemical reaction when in surface contact with an aluminum (or aluminum alloy) material.

[0022] A lighting device according to one embodiment of the present invention comprises: an LED substrate having a plurality of LED elements arranged in a longitudinal direction and generating and emitting light on one surface; a plurality of LED modules including plate-type heat dissipation fins coupled to the other surface of the LED substrate to receive heat generated from the plurality of LED elements and exchange heat with the outside air, but extending so that a heat exchange surface area for exchanging heat with the outside air in a direction opposite to a light irradiation direction of the LED elements is increased; and a power supply unit (Switching Mode Power Supply, SMPS) that supplies power to the plurality of LED modules by a switching operation.

[0023] Here, each of the plurality of LED modules is set such that the direction of irradiation of light generated from the plurality of LED elements is orthogonal to the lower surface of the LED substrate, and the LED substrate of each of the plurality of LED modules is arranged in a longitudinal direction in a front-back horizontal direction, so that the LED substrates can be arranged to be spaced apart from each other in the left-right direction with respect to the SMPS.

[0024] In addition, each of the plurality of LED modules is set such that the direction of irradiation of light generated from the plurality of LED elements is orthogonal to the lower surface of the LED substrate, and the LED substrate of each of the plurality of LED modules is arranged in a horizontal direction in the longitudinal direction, so that they can be arranged to be spaced apart from each other in the front-back direction with respect to the SMPS.

[0025] Additionally, each of the plurality of LED modules may be arranged so that the direction of irradiation of light generated from the LED element is set to be inclined downward and forward at a predetermined angle.

[0026] In addition, the plurality of LED modules each include an installation bracket arranged between the LED substrate and the heat dissipation fins and mediating mutual coupling between the LED substrate and the heat dissipation fins, and a light guide provided on a lower surface of the installation bracket to guide downward irradiation of light generated from the plurality of LED elements, and a support housing bar that mediates coupling of the modules to a power supply unit (Switching Mode Power Supply, SMPS), and the maximum irradiation angle of the LED elements can be limited by the LED modules arranged relatively forward.

[0027] In addition, the support housing bar may further include a rectangular ring-shaped housing frame portion that mediates coupling to the SMPS.

[0028] In addition, the device may further include a finger guard panel assembly coupled to the housing frame portion to surround the heat dissipation fins of the plurality of LED modules.

[0029] In addition, the housing frame portion may include a left frame bar and a right frame bar. The finger guard panel assembly may include a left finger guard panel and a right finger guard panel. A plurality of screw fastening ends may be formed on the left frame bar and the right frame bar. A plurality of screw penetration ends may be formed at positions corresponding to the plurality of screw fastening ends on the lower portion of the left finger guard panel and the lower portion of the right finger guard panel. The plurality of screw fastening ends and the plurality of screw fastening ends may be fastened to each other via screws.

[0030] Additionally, a power connection may be coupled to the rear end of the support housing bar. The power connection may mediate a power connection to the SMPS. The power connection may be provided in the form of a folded panel.

[0031] In addition, the power connection part provided in each of the plurality of LED modules can be connected to the SMPS in the left and right directions at a predetermined distance apart from each other via the housing frame part.

[0032] In addition, the device may further include a finger guard panel that surrounds the heat dissipation fins of the plurality of LED modules and has ventilation holes formed on the left and right sides in a shape corresponding to the arrangement direction of the left and right ends of the heat dissipation fins provided therein.

[0033] In addition, a plurality of bar receiving grooves may be formed on the inner lower part of the panel forming the left side and the right side among the finger guard panels, into which bar fixing ends corresponding to the left and right ends of each of the support housing bars are inserted.

[0034] In addition, each of the support housing bars may further include a left connecting bar and a right connecting bar that mediate fixing of the bar fixing ends to the plurality of bar receiving grooves.

[0035] Specific details of other embodiments are included in the detailed description and drawings.

[0036]

[0037] According to the LED module and lighting device including the same according to the present invention, when a malfunction or failure occurs in some components, only the corresponding module can be easily replaced, and heat dissipation performance can be maximized.

[0038] Additionally, it has the effect of minimizing the glare caused by light irradiated from the LED element.

[0039] The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

[0040]

[0041] FIG. 1A and FIG. 1B are perspective views of an LED module and a lighting device including the same according to a first embodiment of the present invention.

[0042] Figures 2a and 2b are exploded perspective views of Figures 1a and 1b, respectively.

[0043] Figure 3 is a cross-sectional view of Figure 1a,

[0044] FIG. 4a and FIG. 4b are downward perspective views and upward perspective views showing the LED module in the configuration of FIG. 1a and FIG. 1b, respectively.

[0045] Figures 5a and 5b are exploded perspective views of Figures 4a and 4b, respectively.

[0046] Figures 5c and 5d are exploded perspective views showing the detailed configuration of the installation bracket and the heat dissipation fins in the configuration of Figure 5a.

[0047] Fig. 6 is a side view showing the light distribution of a lighting device according to the first embodiment of the present invention.

[0048] FIG. 7a and FIG. 7b are perspective views of an LED module and a lighting device including the same according to a second embodiment of the present invention.

[0049] Figures 8a and 8b are exploded perspective views of Figures 7a and 7b, respectively.

[0050] Fig. 9 is a perspective view showing an LED module among the configurations of Fig. 7a.

[0051] Figures 10a to 10c are exploded perspective views for explaining the installation process of the installation bracket and heat dissipation fin for the support housing bar in the configuration of Figure 7a.

[0052] Fig. 11 is a cross-sectional view showing the light distribution of a lighting device according to the second embodiment of the present invention.

[0053] FIG. 12a is a perspective view of an LED module and a lighting device including the same according to a third embodiment of the present invention.

[0054] Figure 12b is a bottom perspective view of Figure 12a,

[0055] Figure 13 is a drawing showing the state in which the finger guard assembly is removed from Figure 12a.

[0056] Fig. 14a is a rear perspective view showing the LED module illustrated in Fig. 13,

[0057] Figure 14b is an exploded perspective view of Figure 14a,

[0058] Figure 14c is a bottom perspective view of Figure 14b,

[0059] FIG. 15a is a perspective view of an LED module and a lighting device including the same according to a fourth embodiment of the present invention.

[0060] Figure 15b is a bottom perspective view of Figure 15a,

[0061] Figure 16 is a drawing showing the state in which the finger guard assembly is removed from Figure 15a.

[0062] FIG. 17a is a perspective view of an LED module and a lighting device including the same according to a fifth embodiment of the present invention.

[0063] Figure 17b is a bottom perspective view of Figure 17a,

[0064] Figure 18 is a drawing showing the state in which the finger guard assembly is removed from Figure 17a.

[0065] FIG. 19a is a perspective view of an LED module and a lighting device including the same according to a sixth embodiment of the present invention.

[0066] Figure 19b is a bottom perspective view of Figure 19a,

[0067] Figure 20 is a drawing showing the state in which the finger guard assembly is removed from Figure 19a.

[0068] FIG. 21a is a perspective view of an LED module and a lighting device including the same according to the seventh embodiment of the present invention.

[0069] Figure 21b is a bottom perspective view of Figure 21a,

[0070] Figure 22 is a drawing showing a state in which the finger guard assembly is removed from Figure 21a.

[0071]

[0072] <Explanation of symbols>

[0073] 1A, 1B, 1C, 1D, 1E, 1F, 1G: Lighting device 10: SMPS

[0074] 50A, 50B: Finger guard panel assembly 51L: Left finger guard panel

[0075] 51R: Right finger guard panel 51L-P, 51R-P: Screw through end

[0076] 55B: Bar receiving groove 57B-1: Left connecting bar

[0077] 57B-2: Right connecting bar 60: Housing frame part

[0078] 61L: Left frame bar 61R: Right frame bar

[0079] 61L-P, 61R-P: Screw fastening 100A, 100B, 100C: LED module

[0080] 150, 150B: LED mounting bar 160: LED substrate

[0081] 165: LED element 170, 170B: Support housing bar

[0082] 177B: Bar fixing end 180: Power connection

[0083] 190: Mounting bracket 200: Heat sink fin

[0084] 201: Evaporation section 203: Condensation section

[0085] 210: First refrigerant path 215: Refrigerant guide

[0086] 220: Second refrigerant flow path 230: Third refrigerant flow path

[0087] 240: Joint 250: Tube fixing part

[0088] 260: Air vent tube

[0089]

[0090] Hereinafter, an LED module and a lighting device including the same according to one embodiment of the present invention will be described in detail with reference to the attached drawings.

[0091] When assigning reference numerals to components in each drawing, it should be noted that identical components are assigned the same numerals whenever possible, even if they appear on different drawings. Furthermore, when describing embodiments of the present invention, if a detailed description of a related known configuration or function is deemed to hinder understanding of the embodiments of the present invention, the detailed description will be omitted.

[0092] In describing components of embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only intended to distinguish the components from other components, and the nature, order, or sequence of the components are not limited by these terms. Furthermore, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning they have in the context of the relevant technology, and shall not be interpreted in an idealized or overly formal sense unless explicitly defined in this application.

[0093] FIG. 1a and FIG. 1b are perspective views of an LED module and a lighting device including the same according to a first embodiment of the present invention, FIG. 2a and FIG. 2b are exploded perspective views of FIG. 1a and FIG. 1b, respectively, and FIG. 3 is a cross-sectional view of FIG. 1a.

[0094] Hereinafter, in terms related to directions such as front, back, left, right, up, down in the description, the direction indicates the same direction as the front, back, left, right, up, down directions indicated by arrows in Fig. 2a.

[0095] A lighting device (1A) according to a first embodiment of the present invention includes a power supply device (10, Switching Mode Power Supply, SMPS) that supplies power to a plurality of LED modules (100A) by a switching operation, as shown in FIGS. 1A to 3, and a plurality of LED modules (100A) arranged spaced apart from each other in the left and right directions at the front end of the power supply device (10).

[0096] Here, the power supply unit (10) can control the illumination (brightness) of all or part of the LED modules (100A) selected from among a plurality of LED modules (100A) by switching operation.

[0097] For reference, in the lighting device (1A) according to the first embodiment of the present invention referenced in FIGS. 1A to 3, the LED modules (100A) according to the first embodiment are arranged in a left-right direction at the front end of the power supply device (10) in multiple numbers, and are provided so that each LED module (100A) is selectively supplied with power through each rear end.

[0098] In contrast, the lighting device (1B) according to the second embodiment of the present invention, which will be described later with reference to FIGS. 7A to 11, may be configured such that a plurality of LED modules (100B) according to the second embodiment, which are configured identically or similarly to the LED module (100A) according to the first embodiment, are spaced apart from each other in the front direction at the front of the power supply device (10), and each LED module (100B) is selectively supplied with power through at least one of the left end and the right end. In addition, the lighting device (1C) according to the third embodiment of the present invention referred to in FIGS. 12a and 12b, the lighting device (1D) according to the fourth embodiment of the present invention referred to in FIGS. 15a and 15b, the lighting device (1E) according to the fifth embodiment of the present invention referred to in FIGS. 17a and 17b, the lighting device (1F) according to the sixth embodiment of the present invention referred to in FIGS. 19a and 19b, and the lighting device (1G) according to the seventh embodiment of the present invention referred to in FIGS. 21a and 21b may be provided such that a plurality of LED modules (100C) according to the third embodiment are spaced apart from each other in the front-back direction in front of the power supply device (10), and each LED module (100C) is selectively supplied with power through at least one of the left and right ends.

[0099] That is, in the lighting device (1A) according to the first embodiment of the present invention, each of the plurality of LED modules (100A) can be set such that the irradiation direction of light generated from the plurality of LED elements (165) is orthogonal to the lower surface of the LED substrate (160). In addition, the LED substrate (160) of each of the plurality of LED modules (100A) can be arranged so that the longitudinal direction is arranged in the front-back horizontal direction and spaced apart from each other in the left-right direction with respect to the SMPS (10). Hereinafter, the longitudinal direction can be the same direction as the front-back direction.

[0100] In contrast, in the lighting device (1B) according to the second embodiment of the present invention and the lighting devices (1C, 1D, 1E, 1F, 1G) according to the third to seventh embodiments of the present invention, each of the plurality of LED modules (100B) and each of the plurality of LED modules (100C) may be set such that the irradiation direction of light generated from the plurality of LED elements (165) is orthogonal to the lower surface of the LED substrate (160). In addition, the LED substrate (160) of each of the plurality of LED modules (100B) and the LED substrate (160) of each of the plurality of LED modules (100C) may be arranged so that the longitudinal direction is arranged in the left-right horizontal direction and may be arranged to be spaced apart from each other in the front-back direction with respect to the SMPS (10).

[0101] The arrangement relationship of each LED module (100A, 100B, 100C) including such an LED substrate (160) will be described in more detail later.

[0102] FIGS. 4a and 4b are downward perspective views and upward perspective views showing the LED module in the configuration of FIGS. 1a and 1b, respectively, FIGS. 5a and 5b are exploded perspective views of FIGS. 4a and 4b, respectively, FIGS. 5c and 5d are exploded perspective views showing detailed configurations of the installation bracket and the heat dissipation fin in the configuration of FIG. 5a, respectively, and FIG. 6 is a side view showing the light distribution of a lighting device according to the first embodiment of the present invention.

[0103] An LED module (100A) according to a first embodiment of the present invention may include, as shown in FIGS. 4A to 6, an LED substrate (160) formed to be elongated in the longitudinal direction and having a plurality of LED elements (165) arranged and mounted in the longitudinal direction on one surface to generate and radiate light, a heat dissipation fin (200) which is a plate-type heat exchanger that is coupled to the other surface of the LED substrate (160) and receives heat generated from the plurality of LED elements (165) to exchange heat with the outside air, but is extended so that the heat exchange surface area for exchanging heat with the outside air in a direction opposite to the light irradiation direction of the LED elements (165) is increased, and a plurality of LED mounting bars (150) which are disposed between the LED substrate (160) and the heat dissipation fin (200) and mediate the mutual coupling of the LED substrate (160) and the heat dissipation fin (200).

[0104] Here, the LED mounting bar (150) provides an installation space for installing an LED substrate (160) on the lower side, and also serves to mediate the stable installation of a heat dissipation fin (200) on the upper side.

[0105] The LED substrate (160) may be made of FR4 material used to form a typical printed circuit board, or may be made of metal material (metal PCB) to facilitate the transfer of heat transmitted through the heating surface of the LED element (165) to the other surface.

[0106] Meanwhile, the LED substrate (160) may be formed in a bar shape that is approximately long in the longitudinal direction, but has a relatively large ratio of the size in the width direction to the size in the thickness direction.

[0107] On one side of such an LED substrate (160), a plurality of LED elements (165) can be mounted in a long arrangement in one or two rows.

[0108] Accordingly, light generated from a plurality of LED elements (165) can be irradiated toward one side of the LED substrate (160), and heat generated by the electrical operation of a plurality of LED elements (165) can be transferred toward the other side of the LED substrate (160).

[0109] Here, when the LED substrate (160) is made of FR4 material, which is a typical PCB material, a plurality of element penetration holes (not shown) can be formed so that the heating surface of each LED element (165) is exposed to the other side of the LED substrate (160), and when the LED substrate (160) is made of a metal material, the heat of the LED element (165) can be transferred to the other side of the LED substrate (160) by a heat conduction method using the metal PCB as a medium.

[0110] Meanwhile, the LED module (100A) according to the first embodiment of the present invention, as shown in FIGS. 4A to 6, is coupled to the lower portion of the installation bracket (190), and has a light guide (175) provided on the lower surface to guide downward irradiation of light generated from a plurality of LED elements (165), and may further include a support housing bar (170) that mediates module coupling to the SMPS (10).

[0111] The support housing bar (170) may be formed in a square frame shape, as shown in FIGS. 5a to 5d, in which a plurality of LED elements (165) mounted on one surface of an LED substrate (160) are exposed by penetrating through the lower portion of the drawing, and in which an installation bracket (190) and an evaporation end (201) among the lower portions of the heat dissipation fins (200), which will be described later, are accommodated (not indicated by a drawing symbol) in the upper portion of the drawing.

[0112] Meanwhile, the LED module (100A) according to the first embodiment of the present invention may further be provided with a power connection portion (180) in the form of a bracket that is coupled to the rear end of the support housing bar (170) and mediates power connection to the SMPS (10).

[0113] The power connection part (180) is provided in the form of a panel bent in an approximately 'L' shape, as shown in FIGS. 4a to 6, and may further be provided so that the input lead line (181) and the output lead line (182) pass through it.

[0114] For reference, the power connection parts (180) provided in each of a plurality of LED modules (100A) can be connected and fixed to the SMPS (10) at a predetermined distance apart from each other in the left and right directions via the housing frame part (60) described later.

[0115] In addition, the input lead wire (181) and the output lead wire (182) of the power connection unit (180) are each connected to a lead connection terminal (167) provided at the rear end of the LED board (160) so as to supply power from the power supply unit (10) to the LED board (160).

[0116] Here, a transparent light guide (175) is formed at the bottom of the support housing bar (170) to block the opening, but allow light generated from the LED elements (165) to pass through. The light guide (175) may be formed in a rectangular shape that is long in the front-back direction. Alternatively, the light guide (175) may be formed in a protruding hemispherical shape that accommodates each LED element (165), as in the LED module (100B) according to the second embodiment described below. This will be described in more detail later.

[0117] In the installation space of such a support housing bar (170), the front and rear ends of the LED substrate (160) can be installed so that they are caught, and the lower surface of the installation bracket (190) can be sequentially installed so that it makes surface thermal contact with the upper surface of the LED substrate (160) or the heating surface of the LED element (165) exposed to the upper side of the LED substrate (160).

[0118] The installation bracket (190) is provided as a pair of a first installation bar (191A) and a second installation bar (191B), and the first installation bar (191A) and the second installation bar (191B) are coupled so that their right and left sides are in contact with each other, and an installation groove (191L) on one side and an installation groove (191R) on the other side, into which an evaporation end (201) of a heat dissipation fin (200) described later is inserted and received so as to make surface thermal contact, can be formed on the right side of the first installation bar (191A) and the left side of the second installation bar (191B), respectively.

[0119] Such an installation bracket (190) serves as a medium for connecting the heat dissipation fin (200) to the support housing bar (170) and simultaneously transferring heat generated from the heating surface of the LED element (165) to the heat dissipation fin (200), and therefore, it may be made of a solid metal material, but may be made of a metal with excellent thermal conductivity or at least the same material as the heat dissipation fin (200).

[0120] The evaporation end (201) corresponding to the lower part of the heat dissipation fin (200) is preferably inserted into one side installation groove (191L) and the other side installation groove (191R) of the installation bracket (190) to maximize surface thermal contact, and can be installed by bonding using an epoxy treatment method.

[0121] Meanwhile, in the LED module (100A) according to the first embodiment of the present invention, the heat dissipation fin (200) can be formed using a metal base material panel made of a metal material with excellent thermal conductivity so that heat transferred from a plurality of LED elements (165) can be effectively exchanged with the outside air.

[0122] For example, the heat dissipation fin (200) can be formed by bending a single metal base material panel so that the edge ends thereof are joined to each other, and can also be formed so that the edge ends of two metal base material panels are joined to each other.

[0123] At this time, the heat dissipation fin (200) may have a refrigerant flow space (205) formed therein in which a phase-changeable refrigerant is filled, and the refrigerant filled in the refrigerant flow space (205) may be a refrigerant capable of changing phase from a liquid state to a gaseous state at least by heat transferred from the LED elements (165).

[0124] Here, the metal base material panel of the heat dissipation fin (200) is preferably made of a metal material with excellent thermal conductivity in that it substantially expands the heat exchange surface area of ​​the refrigerant, which has been phase-changed into a gaseous state by heat transferred from the LED element (165), with the outside air.

[0125] Among existing metals, aluminum (or aluminum alloy) is generally preferred in this field due to its superior thermal conductivity and relatively light weight. However, despite its inherently superior thermal conductivity, aluminum (or aluminum alloy) can be limited in the types of refrigerants it can be filled with.

[0126] That is, when the heat dissipation fin (200) is adopted as a metal base material panel made of aluminum (or alloy aluminum), it is preferable that the adoptable refrigerant be one that does not chemically react with aluminum (or alloy aluminum). At this time, when water (H2O) is adopted as the refrigerant, a rapid oxidation reaction (chemical reaction) occurs on the surface of aluminum (or alloy aluminum) that comes into contact with water, generating hydrogen, and causing a problem in that the internal pressure (internal pressure) of the refrigerant flow space (205) increases due to the generated hydrogen.

[0127] Accordingly, in the case of the LED module (100A) according to one embodiment of the present invention, it is preferable that the material of at least one metal base panel forming the heat dissipation fin (200) be a material that hardly causes a chemical reaction with water when the refrigerant is water, and more preferably, it can be selected as a SUS (stainless steel) material.

[0128] More specifically, the refrigerant filled in the refrigerant flow space (205) of the heat dissipation fin (200) is formed as a phase-changeable material that is in a liquid state at room temperature and can be evaporated into a gaseous state by heat transferred from the LED elements (165), but can be formed as water that does not cause a chemical reaction when in surface thermal contact with an aluminum (or aluminum alloy) material.

[0129] For reference, in the case where aluminum (or alloy aluminum) is adopted as a material, water must inevitably be excluded as a refrigerant to minimize the chemical reaction described above, and the adoption of expensive refrigerants such as Honeywell refrigerants or other phase-changeable refrigerants that may cause environmental pollution is unavoidable.

[0130] Meanwhile, referring to FIGS. 4A to 6, in the LED module (100A) according to one embodiment of the present invention, it will be noted that the heat dissipation fins (200) are illustrated as an embodiment in which a refrigerant flow space (205) is formed by mutually joining along the edge ends of two SUS material metal base panels instead of a single fin, and the refrigerant filled in the refrigerant flow space (205) is formed in a way that maintains airtightness with the outside so as to prevent leakage.

[0131] Hereinafter, the heat dissipation fin (200) is defined as a one-side heat exchange panel (200-1) that forms one heat dissipation surface among two metal base panels, and is defined as the other heat dissipation surface that forms the other heat dissipation surface, and is explained as the other-side heat exchange panel (200-1).

[0132] One side heat exchange panel (200-1) and the other side heat exchange panel (200-2) are formed in an approximately rectangular shape, but have a shape in which the upper rear vertex among the four vertices is removed in a chamfered shape to form an inclined portion, and a tube fixing portion (250) into which an air vent tube (260) can be inserted and fixed can be formed protrudingly in the inclined portion.

[0133] A heat dissipation fin (200) having such a configuration can be fixed in a predetermined bonding manner with the end (hereinafter referred to as 'evaporation end (201)') corresponding to the lower part relative to the direction of gravity inserted into one side installation groove (191L) and the other side installation groove (191R) of the installation bracket (190).

[0134] The specific joining method herein may include the epoxy treatment joining method described above, as well as a general welding joining method.

[0135] In addition, when defining the portion of the heat dissipation fin (200) excluding the evaporation portion (201) as the 'condensation portion (203)', the evaporation portion (201) is a portion corresponding directly below the condensation portion (203), and may be the lower portion based on the direction of gravity.

[0136] Meanwhile, in the LED module (100A) according to the first embodiment of the present invention, the heat dissipation fin (200) may have a coolant flow space (205) formed therein, in which coolant is filled, as shown in FIGS. 4A to 6.

[0137] The refrigerant flow space (205) is an internal space corresponding to the evaporation section (201) described above, and may include a first refrigerant passage (210), which is a portion where the liquid refrigerant filled therein is collected downward in the direction of gravity and evaporated into a gaseous refrigerant (gaseous refrigerant) by heat transferred through the evaporation section (201).

[0138] In other words, the first refrigerant passage (210) can be defined as an internal space corresponding to the evaporation end (201) of the heat dissipation fin (200) located relatively lower with respect to the direction of gravity.

[0139] For reference, in the refrigerant flow space (205) corresponding to the first refrigerant passage (210), an absorber (not shown) may be further placed to absorb the captured condensed liquid refrigerant so that it is distributed and retained throughout the first refrigerant passage (210) located longitudinally at a lower portion approximately based on the direction of gravity.

[0140] In addition, the heat dissipation fin (200) is formed in an area of ​​the internal space corresponding to approximately the condensing end (203), and may include a plurality of second refrigerant passages (220) that guide the condensed liquid refrigerant to be dispersed and collected in the first refrigerant passage (210) corresponding to the evaporating end (201) so that the refrigerant is evaporated into a gaseous refrigerant and then diffused throughout the entire condensing end (203) and then condensed again while exchanging heat with the outside air.

[0141] A plurality of second refrigerant passages (220) can be formed so that adjacent second refrigerant passages (220) are separated or partitioned by a plurality of refrigerant guides (215) formed in a recessed shape toward the refrigerant flow space (205) on the outer surface of one side heat exchange panel (200-1) and the other side heat exchange panel (200-2).

[0142] Here, the refrigerant flow space (205) may further include a third refrigerant flow path (230) defined as a flow path formed between adjacent second refrigerant flow paths (220) among a plurality of second refrigerant flow paths (220), but positioned between the thickness directions of the plurality of refrigerant guides (215) described above.

[0143] The liquid refrigerant condensed through the condensing section (203) is induced to flow toward the first refrigerant passage (210) on the lower side not only through the second refrigerant passage (220) but also through the third refrigerant passage (230), but can be mainly dispersed and moved toward the first refrigerant passage (210) on the lower side through the second refrigerant passage (220) by the surface tension or gravity of the liquid through the step portion formed by the refrigerant guide (215).

[0144] In addition, the vaporized refrigerant from the first refrigerant passage (210) can diffuse and move to the entire condensing section (203) not only through the third refrigerant passage (230) but also through the second refrigerant passage (220). However, when the flow of liquid refrigerant is induced through the second refrigerant passage (220), the vaporized refrigerant can mainly diffuse and move using the empty third refrigerant passage (230) therebetween.

[0145] The one-side heat exchange panel (200-1) and the other-side heat exchange panel (200-2) having the above configuration can be joined by welding along the edge end so that the refrigerant flow space (205) is sealed.

[0146] Here, the heat dissipation fin (200) may further include a plurality of joints (240) that are formed protruding toward the refrigerant flow space (205) on a plurality of refrigerant guides (215) among the one-side heat exchange panel (200-1) and the other-side heat exchange panel (200-2) to facilitate mutual jointing of the one-side heat exchange panel (200-1) and the other-side heat exchange panel (200-2).

[0147] When a plurality of joints (240) are mutually joined through a joint including a welding method on the refrigerant flow space (205), the mutual jointing force of one side heat exchange panel (200-1) and the other side heat exchange panel (200-2) is improved by the internal pressure (internal pressure) that changes during the phase change process of the refrigerant on the refrigerant flow space (205), and by minimizing the shaking phenomenon, the amount of energy consumed to the outside is minimized, thereby preventing the heat dissipation performance from being deteriorated.

[0148] However, the second refrigerant passage (220), the third refrigerant passage (230), the refrigerant guide (215) and the joint (240) provided on the condensing end (203) of the above-described radiating fin (200) are not necessarily formed, and as in the radiating fin (200) of the LED module (100B) according to the second embodiment of the present invention described later, there is no need to necessarily provide them as long as sufficient gas-liquid circulation is guaranteed.

[0149] According to the first embodiment of the present invention, the LED module (100A) having the above configuration, as shown in FIGS. 1A to 3, when it is assumed that the front end of the SMPS (10) disposed at the rear end is horizontally disposed in the left-right direction, the front and rear ends are disposed orthogonally to the front end of the SMPS (10) in the front-back horizontal direction, and the rear end can be connected and fixed via the power connection part (180) provided at the rear end of the support housing bar (170) described above in the SMPS (10) and the housing frame part (60) described later.

[0150] Meanwhile, the lighting device (1A) according to the first embodiment of the present invention may further include a housing frame portion (60).

[0151] The housing frame portion (60) is provided in a rectangular ring shape as shown in FIGS. 1A to 3, and may be provided with four frame bars (61L, 61R, 61F, 61B).

[0152] The four frame bars (61L, 61R, 61F, 61B) may include a left frame bar (61L) that is long in the front-back horizontal direction, a right frame bar (61R) that is long in the front-back horizontal direction but is parallel to the left frame bar (61L), a front frame bar (61F) that is long in the left-right horizontal direction to connect the front ends of the left frame bar (61L) and the right frame bar (61R), and a rear frame bar (61B) that is long in the left-right horizontal direction to connect the rear ends of the left frame bar (61L) and the right frame bar (61R).

[0153] On the inner end (rear end) of the front frame bar (61L), the front end of the support housing bar (190) among the configurations of the LED modules (100A) according to the first embodiment is stably fixed by a connecting element such as an assembly screw (not shown), and on the inner end (front end) and lower surface of the rear frame bar (61B), the back surface of the vertical panel portion and the upper surface of the horizontal panel portion of the power connection portion (180) provided on the rear end of the support housing bar (190) among the configurations of the LED modules (100A) according to the first embodiment are fixed in close contact, and at the same time, a plurality of fixing screws (not shown) that are fastened by penetrating a plurality of screw holes (not shown in the drawing symbol) provided in the horizontal panel portion of the power connection portion (180) can be firmly fastened to the lower surface of the front end of the SMPS (10).

[0154] Meanwhile, a plurality of screw fastening ends (61L-P, 61R-P) spaced apart in the front-back direction may be formed on the left frame bar (61L) and the right frame bar (61R). Screw penetration holes (not indicated in the drawing symbol) formed on the plurality of screw fastening ends (61L-P, 61R-P) may be formed to penetrate in the vertical direction.

[0155] In this way, the multiple screw fastening ends (61L-P, 61R-P) provided on the left frame bar (61L) and the right frame bar (61R) are configured for screw installation and fixation of the finger guard panel assembly (50A) described later.

[0156] In addition, the lighting device (1A) according to the first embodiment of the present invention may further include a finger guard panel assembly (50A) to enable ventilation of outside air to a plurality of heat dissipation fins (200) among a plurality of LED modules (100A) according to the first embodiment, as shown in FIGS. 1A to 3, and to prevent burn injuries to installers or workers due to a relatively high heat dissipation temperature.

[0157] The finger guard panel assembly (50A) may include a left finger guard panel (51L) covering the left side of the LED module (100A) according to a plurality of first embodiments, a right finger guard panel (51R) covering the right side of the LED module (100A) according to a plurality of first embodiments, and a plurality of support pipes (52, 53) having left and right ends connected to the front and upper ends of the left finger guard panel (51L) and the right finger guard panel (51R) respectively through panel screws (52s, 53s).

[0158] Here, the left finger guard panel (51L) and the right finger guard panel (51R) are formed in a shape roughly corresponding to the outer shape of the heat dissipation fin (200) of the LED module (100A) according to the first embodiment, but may be formed in a mesh shape in which a number of ventilation holes (not indicated in the drawing symbol) are formed to allow smooth flow of outside air in the left and right directions.

[0159] However, in the case of the lighting device (1A) according to the first embodiment of the present invention, the ventilation holes do not need to be provided in the form of a very small mesh to facilitate external air circulation and ventilation for the heat dissipation fin (200), and it may be possible to provide them in the form of a grill having sufficient support.

[0160] In addition, a plurality of screw penetration ends (51L-P, 51R-P) for passing through assembly screws (not shown) may be formed at the lower portions of the left finger guard panel (51L) and the right finger guard panel (51R) at positions corresponding to the plurality of screw fastening ends (61L-P, 61R-P) of the left frame bar (61L) and the right frame bar (61R) of the housing frame portion (60) described above. That is, the plurality of screw fastening ends (61L-P, 61R-P) and the plurality of screw penetration ends (51L-P, 51R-P) may be fastened to each other via screws.

[0161] Meanwhile, one of the plurality of support pipes (52, 53) (refer to drawing symbol '53') can simultaneously support the rear ends of the plurality of heat dissipation fins (200) and protect the air vent tube (260) provided on the heat dissipation fins (200) from the outside.

[0162] To this end, a plurality of support slits (54) are formed spaced apart in the left and right directions in the support pipe (53), into which the rear ends of a plurality of heat dissipation fins (200) are fitted and supported, and a tube receiving portion (55) in which an air vent tube (260) described later is received inside may be provided in the form of a groove.

[0163] Here, the lighting device (1A) according to the first embodiment of the present invention may be provided such that, as referenced in FIG. 6, a plurality of LED modules (100A) are arranged longitudinally in the front-back horizontal direction at the front end of the SMPS (10), but are arranged spaced apart from adjacent LED modules (100A) in the left-right direction by a predetermined distance, and each LED module (100A) is selectively supplied with power through each rear end.

[0164] At this time, as referenced in (a) of Fig. 6, the light irradiation surface of the LED module (100A) may be arranged horizontally on the ceiling area where lighting is required, so as to irradiate light at an irradiation angle similar to “A”.

[0165] However, rather than the horizontal arrangement structure as referenced in (a) of the above-described FIG. 6, it may be advantageous for the light distribution structure to irradiate light at an irradiation angle similar to "B" by arranging the light irradiation surface of the LED module (100A) diagonally as referenced in (b) of FIG. 6.

[0166] In order to advantageously apply the light distribution structure in this way, a diagonal arrangement design as in (b) of Fig. 6 must be made, and for this purpose, there is a problem in that the lighting device (1A) according to the first embodiment of the present invention must be tilted as a whole to adjust the angle and then fixed.

[0167] In addition, when irradiating light by adjusting the irradiation angle of the lighting device (1A) according to the first embodiment of the present invention as shown in (b) of FIG. 6 with a diagonal arrangement design, a problem is pointed out that the LED elements (165) are directly exposed to the eyes of the consumer, causing a glare phenomenon.

[0168] The LED module (100B) and the lighting device (1B) including the same according to the second embodiment of the present invention described below are designed to be diagonally arranged to prevent the occurrence of the above-described glare phenomenon for consumers, but the design has been changed so that the LED module (100B) is diagonally arranged in the finger guard panel assembly (50B), not the entire lighting device (1B).

[0169] FIGS. 7A and 7B are perspective views of an LED module and a lighting device including the same according to a second embodiment of the present invention, FIGS. 8A and 8B are exploded perspective views of FIGS. 7A and 7B, respectively, FIG. 9 is a perspective view showing an LED module in the configuration of FIG. 7A, FIGS. 10A to 10C are exploded perspective views for explaining the installation process of an installation bracket and a heat dissipation fin for a support housing bar in the configuration of FIG. 7A, and FIG. 11 is a cross-sectional view showing a light distribution appearance of a lighting device according to a second embodiment of the present invention.

[0170] A lighting device (1B) according to a second embodiment of the present invention is arranged to be spaced apart in the front-back direction with respect to the SMPS (10) so that the longitudinal direction of the LED substrate (160) is set in the left-hand horizontal direction when each of a plurality of LED modules (100B) is set such that the irradiation direction of light generated from a plurality of LED elements (165) is orthogonal to the lower surface of the LED substrate (160), as shown in FIGS. 7A to 11.

[0171] Hereinafter, the detailed configuration of the lighting device (1B) and the LED module (100B) according to the second embodiment of the present invention will be described with a focus on configurations that are different from or similar to the individual configurations of the lighting device (1A) and the LED module (100A) according to the first embodiment of the present invention, without redundant description.

[0172] For example, among the detailed configurations of the lighting device (1B) and the LED module (100B) according to the second embodiment of the present invention, the configurations of the SMPS (10) and the LED substrate (160), the LED element (165), the heat dissipation fin (200), and the installation bracket (190) for fixing the heat dissipation fin (200) are all identical or similar in configuration, so a duplicate description is specifically excluded.

[0173] The lighting device (1B) according to the second embodiment of the present invention may include a finger guard panel assembly (50B) that mediates the fixed installation of the LED module (100B) according to the second embodiment, as referenced in FIGS. 7A to 8B.

[0174] In contrast to the finger guard panel assembly (50A) of the lighting device (1A) according to the first embodiment described above, which is composed of a left finger guard panel (51L), a right finger guard panel (51R), and a plurality of support pipes (52, 53) connecting them in the left and right directions, the finger guard panel assembly (50B) of the lighting device (1B) according to the second embodiment of the present invention may be provided as an integrated finger guard panel (51B) provided in a form that surrounds the outer surface of the LED module (100B) according to the second embodiment, which corresponds to the remaining portion except for the lower and rear surfaces, in the form of an integrated panel.

[0175] In the integrated finger guard panel (51B), a plurality of ventilation holes (59B) can be formed in a slot shape to facilitate the circulation of external air to the internal heat dissipation fins (200).

[0176] At this time, the ventilation holes (59B) formed on the left and right sides of the integrated finger guard panel (51B) among the plurality of ventilation holes (59B) can be formed in a shape in which the slot-shaped formation direction corresponds to the arrangement direction of the left and right ends of the heat dissipation fins (200) provided inside.

[0177] Meanwhile, in the lighting device (1B) according to the second embodiment of the present invention, a plurality of bar receiving grooves (55B) are provided in the form of ribs on the inner lower part of the panel forming the left and right sides of the integrated finger guard panel (51B), into which bar fixing ends (177B) corresponding to the left and right ends of the support housing bar (170B) described later are inserted and received, and the plurality of bar receiving grooves (55B) can be spaced apart from each other in a straight line in the front-back direction.

[0178] Here, a plurality of bar receiving grooves (55B) are provided in a form in which the rib portion of the lower part is removed, so that the bar fixing end (177B) of the support housing bar (170B) can be accommodated and arranged to fit while moving from the bottom to the top.

[0179] In such a plurality of bar receiving grooves (55B), a screw through hole (55B-h) may be formed so that the bar fixing end (177B) of the support housing bar (170B) may be penetrated and fastened by an assembly screw (58B-s), and a lead through hole (56B-h) may be formed through which an input lead line and an output lead line (not shown) for power supply may penetrate and be connected.

[0180] In addition, in the lighting device (1B) according to the second embodiment of the present invention, the finger guard panel assembly (50B) may further include a left connection bar (57B-1) and a right connection bar (57B-2) that mediate the connection and fixation of the bar fixing end (177B) of the support housing bar (170B) of the LED module (100B) according to the second embodiment of the present invention, which is arranged to be spaced apart in the front-back horizontal direction, to a plurality of bar receiving grooves (55B).

[0181] In addition, a plurality of bar receiving grooves (55B) can be formed to be inclined downwardly forward so that the light irradiation surface of the LED module (100B) according to the second embodiment is arranged and fixed at a predetermined angle downwardly.

[0182] Meanwhile, in the lighting device (1B) according to the second embodiment of the present invention, the LED module (100B) includes a support housing bar (170B) that mediates the installation of the LED substrate (160) and the heat dissipation fin (200).

[0183] In contrast to the LED module (100A) according to the first embodiment of the present invention, which was described above, in which the support housing bar (170) is provided with a light guide (175) made of a transparent material in a simple rectangular shape at the lower end, the LED module (100B) according to the second embodiment of the present invention has a light guide (175B) made of the same transparent material provided on the lower surface of the support housing bar (170B), but has a difference in that it is formed in a hemispherical shape that protrudes to accommodate the LED element (165) mounted on the lower surface of the LED substrate (160).

[0184] In addition, the support housing bar (170B) can be formed so that, when the LED module (100B) according to the second embodiment of the present invention is arranged in a horizontal direction in the left and right inside the finger guard panel assembly (50B), the lower end of the front end (172F) can be positioned higher than the lower end of the rear end (172R).

[0185] This is to ensure stable support for the bar receiving groove (55B) of the finger guard panel assembly (50B) by sufficiently securing the vertical length of the rear end surface (172R) of the support housing bar (170B), and to reduce interference of light irradiated from the LED element (165) by minimizing the vertical length of the front end surface (172F) of the support housing bar (170B).

[0186] The lighting device (1B) according to the second embodiment of the present invention configured as described above can be designed to be changed so that each LED module (100B) is arranged diagonally downward with an irradiation angle toward the bottom, as shown in FIG. 11.

[0187] However, as described above, since the maximum front portion (C1) of the light irradiation angle of the LED element (165) of the LED substrate (160) is limited by the lower end of the rear end (172R) of the support housing bar (170B) provided relatively forward, even when the light distribution structure is designed diagonally to be advantageous, the angle (amount) directly irradiated to the eyes of the consumer is minimized to suppress glare, and since the maximum rear portion (C2) of the light irradiation angle of the LED element (165) overlaps with the forward irradiation angle of the LED element (165) relatively rearward, light of the same illuminance can be irradiated overall.

[0188] FIG. 12a is a perspective view of an LED module and a lighting device including the same according to a third embodiment of the present invention, FIG. 12b is a bottom perspective view of FIG. 12a, and FIG. 13 is a drawing showing a state in which a finger guard assembly is removed from FIG. 12a. Here, components having the same function as those in the first embodiment described above are given the same reference numerals, and a detailed description thereof is omitted, and only differences from the first embodiment described above will be described.

[0189] Referring to FIGS. 12A to 13, the lighting device (1C) according to the third embodiment of the present invention may further include a rotate bracket (70) and a tilt bracket (80). The rotate bracket (70) and the tilt bracket (80) may be placed on the lower side of the power supply device (10).

[0190] The rotate bracket (70) may be positioned downwardly from the bottom surface of the power supply unit (10). The rotate bracket (70) may include a horizontal plate portion (71) positioned horizontally, and a pair of vertical plate portions (72) positioned vertically by protruding upward from each of the left and right sides of the horizontal plate portion (71).

[0191] The horizontal plate portion (71) of the rotate bracket (70) can be installed so as to be rotatable horizontally on a structure for installing the lighting device (1C), and after adjusting the horizontal rotation direction of the lighting device (1C), the horizontal plate portion (71) can be fixed to the structure non-rotatably using a bolt. After loosening the bolt from the structure, the lighting device (1C) can be rotated horizontally to adjust the light distribution position distributed downward from the lighting device (1C). Here, rotation in the horizontal direction can mean rotation about an imaginary vertical axis as the center of rotation.

[0192] The tilt bracket (80) may be provided as a pair of tilt brackets (80). The upper part of the pair of tilt brackets (80) may be connected to the lower part of the power supply unit (10) via a bolt.

[0193] A pair of tilt brackets (80) can be installed so as to be rotatably vertically on a pair of vertical plate parts (72) of a rotate bracket (70), respectively, and after adjusting the vertical rotation direction of the lighting device (1C), the pair of tilt brackets (80) can be fixed non-rotatably to the pair of vertical plate parts (72) using bolts, respectively. After loosening the bolts from the pair of vertical plate parts (72), the lighting device (1C) can be rotated vertically to adjust the light distribution position distributed downwardly of the lighting device (1C). Here, rotation in the vertical direction may mean rotation about an imaginary horizontal axis as the rotation center.

[0194] In addition, the lighting device (1C) according to the third embodiment of the present invention may have an inclined guide plate (90) formed on the lower side of the front portion of the finger guard panel assembly (50A). The inclined guide plate (90) may be formed to be inclined so that it gets closer to the front as it goes downward. The inclined guide plate (90) may limit the light of the LED module (100C) distributed to the lower side of the finger guard panel assembly (50A) from being distributed forward, thereby suppressing glare caused by the light.

[0195] In addition, the LED modules (100A) according to the first embodiment described above are arranged in multiple units spaced apart in the left-right direction in front of the power supply device (10), but the LED modules (100C) according to the third embodiment are arranged in multiple units spaced apart in the front-back direction in front of the power supply device (10). Specifically, the LED modules (100C) according to the third embodiment are arranged in four units spaced apart in the front-back direction in front of the power supply device (10).

[0196] Fig. 14a is a rear perspective view showing the LED module illustrated in Fig. 13, Fig. 14b is an exploded perspective view of Fig. 14a, and Fig. 14c is a bottom perspective view of Fig. 14b. Here, components having the same function as the LED module (100A) of the first embodiment described above are given the same drawing reference numerals, and a detailed description thereof is omitted, and only differences from the LED module (100A) of the first embodiment described above will be described.

[0197] Referring to FIGS. 14A to 14C, a fourth coolant passage (231) may be formed in the heat dissipation fin (200) of the LED module (100C) according to the third embodiment of the present invention, compared to the heat dissipation fin (200) of the LED module (100A) according to the first embodiment described above. The fourth coolant passage (231) may be formed at the left end, which is the end closer to the air vent tube (260), among the left and right ends of the heat dissipation fin. The fourth coolant passage (231) may be formed in a diagonal direction, which is the same direction as the third coolant passage (230). The width of the fourth coolant passage (231) may be formed to be wider than the width of the third coolant passage (230).

[0198] The joint (240) formed between the third refrigerant channels (230) is formed in a circular shape, but the joint (241) formed between the fourth refrigerant channels (231) may be formed in an oval shape. The area of ​​the joint (241) may be formed to be wider than the area of ​​the joint (240).

[0199] In addition, the installation bracket (190) of the LED module (100A) according to the first embodiment described above is provided as a pair of a first installation bar (191A) and a second installation bar (191B), and a one-side installation groove (191L) and an other-side installation groove (191R) are formed in the mutually facing portions of the first installation bar (191A) and the second installation bar (191B), so that the evaporation end (201) of the heat dissipation fin (200) is inserted into the one-side installation groove (191L) and the other-side installation groove (191R) and accommodated so as to make surface thermal contact, but the installation bracket (190) of the LED module (100C) according to the third embodiment is provided as a single installation bar, and an installation groove (191) is formed on the upper surface of the installation bracket (190), so that the evaporation end (201) of the heat dissipation fin (200) is inserted into the installation groove (191). It is inserted and accommodated so that it comes into thermal contact with the surface.

[0200] In addition, the installation bracket (190) of the LED module (100C) according to the third embodiment of the present invention may have both left and right ends of the installation groove (191) open, and a first pressing projection (193) may be formed to protrude in front of the installation groove (191) and a second joining projection (194) may be formed to protrude in the rear of the installation groove (191) on the upper central portion of the installation bracket (190). The first pressing projection (193) may press the front of the evaporation end (201) of the heat dissipation fin (200) toward the rear, and the second pressing projection (194) may press the rear of the evaporation end (201) of the heat dissipation fin (200) toward the front. The evaporation end (201) of the heat dissipation fin (200) can be coupled to the installation bracket (190) by the pressing force of the first pressing protrusion (193) and the pressing force of the second pressing protrusion (194) while inserted into the installation groove (191). The left-right length of each of the first pressing protrusion (193) and the second pressing protrusion (194) can be formed to be longer than the left-right length of the evaporation end (201) of the heat dissipation fin (200).

[0201] In addition, in the LED module (100A) of the first embodiment described above, the installation bracket (190) is accommodated in the upper space of the support housing bar (170), but in the LED module (100C) of the third embodiment, the support housing bar (170) is accommodated in the lower space of the installation bracket (190). In the LED module (100C) of the third embodiment, when the support housing bar (170) is accommodated in the lower space of the installation bracket (190), the front and back surfaces of the support housing bar (170) are covered by the installation bracket (190), and the left and right sides of the support housing bar (170) are exposed through the open left and right ends at the bottom of the installation bracket (190).

[0202] In addition, the lower surface of the support housing bar (170) of the LED module (100C) according to the third embodiment may be provided with a hemispherical light guide (175B) identical to the light guide (175B) provided on the lower surface of the support housing bar (170B) of the LED module (100B) according to the second embodiment described above.

[0203] Meanwhile, in the lighting device (1C) according to the third embodiment of the present invention, four LED modules (100C) are spaced apart in the front-to-back direction. However, the front-to-back length of the lighting device may vary depending on the number of LED modules (100C), and specifically, the front-to-back length of the finger guard panel assembly (50A) may vary. This will be described below with reference to FIGS. 15A to 22.

[0204] FIG. 15A is a perspective view of an LED module and a lighting device including the same according to a fourth embodiment of the present invention, FIG. 15B is a bottom perspective view of FIG. 15A, and FIG. 16 is a drawing showing a state in which a finger guard assembly is removed from FIG. 15A. Here, components having the same function as those in the third embodiment described above are given the same reference numerals, and a detailed description thereof is omitted, and only differences from the third embodiment described above will be described.

[0205] Referring to FIGS. 15A to 16, a lighting device (1D) according to a fourth embodiment of the present invention has four more LED modules (100C) than the lighting device (1C) according to the third embodiment described above, so that the front-rear length of the finger guard panel assembly (50A) is formed longer.

[0206] That is, in the lighting device (1C) according to the third embodiment described above, four LED modules (100C) are arranged spaced apart from each other in the front-back direction inside the finger guard panel assembly (50A), but in the lighting device (1D) according to the fourth embodiment, eight LED modules (100C) are arranged spaced apart from each other in the front-back direction inside the finger guard panel assembly (50A).

[0207] FIG. 17a is a perspective view of an LED module and a lighting device including the same according to a fifth embodiment of the present invention, FIG. 17b is a bottom perspective view of FIG. 17a, and FIG. 18 is a drawing showing a state in which a finger guard assembly is removed from FIG. 17a. Here, components having the same function as those of the fourth embodiment described above are given the same reference numerals, and a detailed description thereof is omitted, and only differences from the fourth embodiment described above will be described.

[0208] Referring to FIGS. 17a to 18, the lighting device (1E) according to the fifth embodiment of the present invention has four more LED modules (100C) than the lighting device (1D) according to the fourth embodiment described above, so that the front-rear length of the finger guard panel assembly (50A) is formed longer.

[0209] That is, in the lighting device (1D) according to the fourth embodiment described above, eight LED modules (100C) are arranged spaced apart from each other in the front-back direction inside the finger guard panel assembly (50A), but in the lighting device (1E) according to the fifth embodiment, twelve LED modules (100C) are arranged spaced apart from each other in the front-back direction inside the finger guard panel assembly (50A).

[0210] FIG. 19a is a perspective view of an LED module and a lighting device including the same according to a sixth embodiment of the present invention, FIG. 19b is a bottom perspective view of FIG. 19a, and FIG. 20 is a drawing showing a state in which a finger guard assembly is removed from FIG. 19a. Here, components having the same function as those of the fifth embodiment described above are given the same reference numerals, and a detailed description thereof is omitted, and only differences from the fifth embodiment described above will be described.

[0211] Referring to FIGS. 19A to 20, the lighting device (1F) according to the sixth embodiment of the present invention is provided with four more LED modules (100C) compared to the lighting device (1E) according to the fifth embodiment described above, so that the front-rear length of the finger guard panel assembly (50A) is formed longer.

[0212] That is, in the lighting device (1E) according to the fifth embodiment described above, 12 LED modules (100C) are arranged spaced apart from each other in the front-back direction inside the finger guard panel assembly (50A), but in the lighting device (1F) according to the sixth embodiment, 16 LED modules (100C) are arranged spaced apart from each other in the front-back direction inside the finger guard panel assembly (50A).

[0213] FIG. 21a is a perspective view of an LED module and a lighting device including the same according to the seventh embodiment of the present invention, FIG. 21b is a bottom perspective view of FIG. 21a, and FIG. 22 is a drawing showing a state in which the finger guard assembly is removed from FIG. 21a. Here, components having the same function as those of the sixth embodiment described above are given the same reference numerals, and a detailed description thereof is omitted, and only differences from the sixth embodiment described above will be described.

[0214] Referring to FIGS. 21A to 22, a lighting device (1G) according to the seventh embodiment of the present invention is provided with two more LED modules (100C) compared to the lighting device (1F) according to the sixth embodiment described above, so that the front-rear length of the finger guard panel assembly (50A) is formed longer.

[0215] That is, in the lighting device (1F) according to the sixth embodiment described above, 16 LED modules (100C) are arranged spaced apart from each other in the front-back direction inside the finger guard panel assembly (50A), but in the lighting device (1G) according to the seventh embodiment, 18 LED modules (100C) are arranged spaced apart from each other in the front-back direction inside the finger guard panel assembly (50A).

[0216] By using different embodiments of the number of LED modules (100C) such as the lighting devices (1C, 1D, 1E, 1F, 1G) of the third to seventh embodiments of the present invention, the intensity of light distributed to the outside of the lighting devices (1C, 1D, 1E, 1F, 1G) can be set differently.

[0217] In this way, the lighting device (1A, 1B, 1C, 1D, 1E, 1F, 1G) according to embodiments of the present invention provides an advantage of improving the quality of A / S by allowing easy replacement of only the corresponding module when some components of the LED module (100A, 100B, 100C) malfunction or fail, and also improving the emotional quality of the product by minimizing the inconvenience of glare to the consumer.

[0218]

[0219] Those skilled in the art will appreciate that the present invention can be implemented in other specific forms without altering the technical concept or essential characteristics thereof. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. The scope of the present invention is indicated by the claims that follow rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

[0220]

[0221] The present invention provides an LED module and a lighting device including the same, which improves A / S quality performance and is easy to maintain and repair by manufacturing an LED substrate on which an LED element is mounted in a straight length direction and then combining them in a modular manner to complete a single lighting device.

Claims

1. An LED substrate having a plurality of LED elements arranged lengthwise and irradiating light by generating light on one side; A plate-type heat dissipation fin that is coupled to the other surface of the LED substrate and receives heat generated from the plurality of LED elements and exchanges heat with the outside air, but is extended so that the heat exchange surface area for heat exchange with the outside air in the direction opposite to the light irradiation direction of the LED elements is increased; and An LED module comprising an installation bracket disposed between the LED substrate and the heat dissipation fins to mediate mutual coupling between the LED substrate and the heat dissipation fins.

2. In claim 1, The above heat dissipation fin is formed by bending and joining a single metal base panel or joining the edge ends of two metal base panels together to form a refrigerant flow space in which the refrigerant filled inside flows. An LED module in which the lower portion (hereinafter referred to as the “evaporation end”) relative to the direction of gravity is inserted into the above-mentioned installation bracket and then fixed.

3. In claim 2, When defining the part of the above heat dissipation fins excluding the evaporation part as the condensation part, The above evaporation section is an LED module that corresponds to a portion directly below the condensation section and is a lower portion based on the direction of gravity.

4. In claim 2, The above installation bracket is, A first installation bar having a one-sided installation groove formed so that one side of the evaporation end of the above heat dissipation fin is in contact with the installation; and A second installation bar having a second side installation groove formed so that the other side of the evaporation end of the above heat dissipation fin is in contact with the other side of the evaporation end; The above heat dissipation fin is an LED module that is fixed in a predetermined bonding manner with the evaporation end portion inserted into one side installation groove and the other side installation groove of the first installation bar.

5. In claim 4, An LED module, wherein the above-mentioned bonding method includes either a welding bonding method or an epoxy treatment bonding method.

6. In claim 1, An LED module further comprising a support housing bar, which is coupled to the lower portion of the above-described installation bracket and has a light guide provided on the lower surface to guide downward irradiation of light generated from the plurality of LED elements, and which mediates module coupling to a power supply unit (Switching Mode Power Supply, SMPS).

7. In claim 1, The above heat dissipation fin is made of SUS (stainless steel) material, The refrigerant filled in the refrigerant flow space of the above heat dissipation fin is: An LED module formed of a phase-changeable material that is liquid at room temperature and can be evaporated into a gaseous state by heat transferred from the LED element, but is formed of water that does not cause a chemical reaction when in surface contact with an aluminum (or aluminum alloy) material.

8. A plurality of LED modules including an LED substrate having a plurality of LED elements arranged in the longitudinal direction and irradiating light on one side thereof, and a plate-type heat dissipation fin coupled to the other side of the LED substrate to receive heat generated from the plurality of LED elements and exchange heat with the outside air, but extending so that the heat exchange surface area for heat exchange with the outside air in the direction opposite to the light irradiation direction of the LED elements is increased; and A lighting device comprising a power supply (Switching Mode Power Supply, SMPS) that supplies power to the above-mentioned plurality of LED modules by switching operation.

9. In claim 8, A lighting device in which each of the plurality of LED modules is set such that the direction of irradiation of light generated from the plurality of LED elements is perpendicular to the lower surface of the LED substrate, and the LED substrate of each of the plurality of LED modules is arranged in a longitudinal direction in a front-back horizontal direction, and is arranged to be spaced apart from each other in the left-right direction with respect to the SMPS.

10. In claim 8, A lighting device in which each of the plurality of LED modules is set such that the direction of irradiation of light generated from the plurality of LED elements is orthogonal to the lower surface of the LED substrate, and the LED substrate of each of the plurality of LED modules is arranged in a horizontal direction in the longitudinal direction, and is spaced apart from each other in the front-back direction with respect to the SMPS.

11. In claim 10, A lighting device in which each of the plurality of LED modules is arranged so that the direction of irradiation of light generated from the LED element is inclined downward and forward at a predetermined angle.

12. In claim 11, Each of the above multiple LED modules, An installation bracket arranged between the LED substrate and the heat dissipation fins to mediate mutual coupling between the LED substrate and the heat dissipation fins; and A support housing bar is further included, which is coupled to the lower part of the above-mentioned installation bracket and has a light guide provided on the lower surface to guide the lower irradiation of light generated from the plurality of LED elements, and mediates the module coupling to a power supply unit (Switching Mode Power Supply, SMPS). A lighting device in which the maximum irradiation angle of the LED element is limited by the LED module positioned relatively forward.

13. In claim 12, A lighting device further comprising a rectangular ring-shaped housing frame portion that mediates coupling of the support housing bar to the SMPS.

14. In claim 13, A lighting device further comprising a finger guard panel assembly coupled to the housing frame portion to surround the heat dissipation fins of the plurality of LED modules.

15. In claim 14, The above housing frame portion includes a left frame bar and a right frame bar, The above finger guard panel assembly includes a left finger guard panel and a right finger guard panel, A plurality of screw fastening ends are formed on the left frame bar and the right frame bar, A plurality of screw penetration ends are formed at positions corresponding to the plurality of screw fastening ends at the lower portion of the left finger guard panel and the lower portion of the right finger guard panel. A lighting device wherein the plurality of screw fastening ends and the plurality of screw penetration ends are fastened to each other via screws.

16. In claim 13, A lighting device further comprising a power connection portion provided in the form of a folded panel, the power connection portion being connected to the rear end of the support housing bar and mediating a power connection to the SMPS.

17. In claim 16, A lighting device in which the power connection part provided in each of the plurality of LED modules is connected to the SMPS in the left and right directions at a predetermined distance from each other via the housing frame part.

18. In claim 12, A lighting device further comprising a finger guard panel that surrounds the heat dissipation fins of the plurality of LED modules and has ventilation holes formed on the left and right sides in a shape corresponding to the arrangement direction of the left and right ends of the heat dissipation fins provided therein.

19. In claim 18, A lighting device, wherein a plurality of bar receiving grooves are formed on the inner lower part of the panel forming the left side and the right side among the finger guard panels, into which bar fixing ends corresponding to the left and right ends of each of the support housing bars are inserted.

20. In claim 19, A lighting device further comprising a left connecting bar and a right connecting bar for fixing the bar fixing ends of each of the above support housing bars to the plurality of bar receiving grooves.

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