High-efficiency lighting device

Abstract

The present invention relates to a high-efficiency lighting device and, particularly, to a high-efficiency lighting device comprising: a lighting main body which has, therein, an LED module for emitting light downward, and into which air can be introduced from the outside and from which air can be discharged toward the outside; and a lighting heat power generation structure which is provided in the lighting main body and generates electric energy by using heat generated from the LED module, wherein the lighting heat power generation structure comprises a heat collecting module, a main thermoelectric element, and a main cooling module. The heat collecting module includes: a first heat collecting plate formed to have a size and shape corresponding to at least the LED module and provided to be in contact with the top surface of the LED module; and a second heat collecting plate formed to have a size corresponding to at least the first heat collecting plate, provided above the first heat collecting plate to receive heat directly or indirectly from the first heat collecting plate, and having a top surface being in contact with one surface of the main thermoelectric element.

Description

High-efficiency lighting devices

[0001] The present invention relates to a high-efficiency lighting device, and more particularly, to a high-efficiency lighting device capable of effectively dissipating heat generated from an LED module and maximizing the temperature difference between a high-temperature part and a low-temperature part of a thermoelectric element, thereby increasing power generation efficiency using the heat generated from the LED module.

[0002] Lighting devices are typically installed indoors, such as living room lights, or outdoors, such as streetlights and floodlights, to illuminate their surroundings. Most lighting devices installed indoors or outdoors today incorporate LED modules to reduce power consumption and ensure long-term operation. The LED modules included in these lighting devices generate heat when powered, typically through heat sinks to dissipate the heat and protect the LED modules, extending their lifespan.

[0003] However, in order to effectively dissipate the heat generated from the LED module, the size of the heat sink can be increased, but due to the nature of the lighting device being installed at a considerable height, there are limits to how large the heat sink can be, and since the manufacturing cost increases when a high-performance heat sink is used, lighting devices that include LED modules are sold with only the minimum stability secured.

[0004] In addition, the heat generated from the LED module is discharged to the outside, and although technology that can produce electric energy using the heat generated from the LED module has been developed recently, commercialization has not been achieved because the temperature difference between the high and low temperature parts of the thermoelectric element installed inside the lighting device is not large, resulting in low power generation efficiency.

[0005] The present invention is intended to solve the above problems, and the purpose is to provide a high-efficiency lighting device that can effectively dissipate heat generated from an LED module to secure the stability of the LED module and extend its lifespan, and maximize the temperature difference between the high-temperature and low-temperature parts of a thermoelectric element to increase the power generation efficiency using the heat generated from the LED module.

[0006] The high-efficiency lighting device of the present invention for achieving the above purpose comprises: a lighting body having an LED module inside that irradiates light downward, and through which air can be drawn in from the outside and air can be discharged toward the outside; And a lighting heat generation structure that is provided in the lighting body and can produce electric energy using heat generated from an LED module; the lighting heat generation structure includes a heat collection module that collects heat generated from the LED module, a main thermoelectric element that forms a high-temperature portion on one surface due to the heat collected through the heat collection module, and a main cooling module that cools the other surface of the main thermoelectric element so that a low-temperature portion is formed on the other surface of the main thermoelectric element, wherein the heat collection module includes a first heat collection plate that is formed to have a size and shape corresponding to at least the LED module and is provided to be in contact with the upper surface of the LED module, and a second heat collection plate that is formed to have a size corresponding to at least the first heat collection plate and is provided on the upper side of the first heat collection plate to receive heat directly or indirectly from the first heat collection plate and has one surface of the main thermoelectric element in contact with the upper surface.

[0007] In addition, the above lighting heat generation structure may further include a first auxiliary thermoelectric element provided between the first heat collector and the second heat collector so that one surface where the high temperature section is formed faces the first heat collector.

[0008] In addition, the above-mentioned heat collection module further includes a third heat collection plate provided between the first heat collection plate and the second heat collection plate, and the first auxiliary thermoelectric element may be provided to be in contact with the upper surface and the lower surface of the third heat collection plate, respectively.

[0009] In addition, the second heat collector plate includes a 2-1 heat collector portion that is arranged parallel to the first heat collector plate and has a main thermoelectric element in contact with an upper surface thereof and at least one edge positioned on the outer side of the main cooling module, and a 2-2 heat collector portion that is formed to extend so as to form a structure that is bent from an edge of the 2-1 heat collector portion that is positioned on the outer side of the main cooling module, and the lighting heat generation structure may further include a second auxiliary thermoelectric element that has one surface where a high-temperature portion is formed in contact with the 2-2 heat collector portion, and an auxiliary cooling module that cools the other surface of the second auxiliary thermoelectric element so that a low-temperature portion is formed on the other surface of the second auxiliary thermoelectric element.

[0010] In addition, the second-second heat collector may be formed so that the cross-section forms an 'L' or 'L' shape, and the second auxiliary thermoelectric element and auxiliary cooling module may be provided on the upper side of the second-second heat collector.

[0011] In addition, the main cooling module may include a heat sink in the shape of a plate, one side of which is in contact with the other side of the main thermoelectric element, and a plurality of cooling protrusions in the shape of a plate, which are arranged in a row and spaced apart at a set interval on the heat sink so as to be perpendicular to the heat sink, and the auxiliary cooling module may be a heat sink fan that forms an air flow between the plurality of cooling protrusions.

[0012] In addition, the 2-2 collector may be formed to be perpendicular to the 2-1 collector, and the second auxiliary thermoelectric element and auxiliary cooling module may be provided on the outside of the 2-2 collector.

[0013] Additionally, the second heat collector plate may be formed to be in contact with the upper surface of the first heat collector plate and to surround the side surfaces of each of the first heat collector plate and the LED module.

[0014] In addition, the lighting body may further include a solar cell panel that is formed to penetrate the upper surface and be exposed to the outside, and that produces electric energy using sunlight.

[0015] In addition, the solar heat collection structure further includes a vacuum member formed so that the cross-section is fan-shaped, the interior is in a vacuum state, and is provided to penetrate the upper surface of the lighting body, and a heat collection member provided on the inner lower side of the vacuum member to collect solar heat through the vacuum member; wherein the lighting heat generation structure having the solar heat collection structure provided on the upper side is configured such that a plurality of solar heat collection structures are arranged so as to be spaced apart from each other by a predetermined distance, and can produce electric energy using solar heat collected on the heat collection members of the solar heat collection structures, and the solar cell panel can be arranged so as to connect the outer ends of each of the plurality of solar heat collection structures.

[0016] According to the present invention, since a heat collecting module is provided between a main cooling module and an LED module while including a plurality of heat collecting plates, heat generated from the LED module is effectively transferred to the main cooling module to dissipate heat, thereby ensuring the stability of the LED module and extending its lifespan, and maximizing the temperature difference between the high temperature part and the low temperature part of the main thermoelectric element, thereby increasing the power generation efficiency using the heat generated from the LED module.

[0017] Additionally, power generation efficiency can be further improved through solar thermal panels or / and solar thermal collector structures.

[0018] Figures 1 to 7 are drawings showing examples of lighting heat generation structures applied to the high-efficiency lighting device of the present invention.

[0019] Figures 8 to 13 are drawings showing examples of cooling modules applied to the high-efficiency lighting device of the present invention.

[0020] Figures 14 and 15 are drawings showing an embodiment of a high-efficiency lighting device including a lighting heat generation structure and a solar panel.

[0021] FIG. 16 is a drawing showing an embodiment of a high-efficiency lighting device including a lighting heat generation structure and a solar heat collection structure;

[0022] Figures 17 to 19 are drawings showing embodiments of high-efficiency lighting devices including a lighting heat generation structure, a solar cell panel, and a solar heat collection structure.

[0023] Figures 20 and 21 are drawings showing the operation control structure for each power generation zone of the thermoelectric element applied to the high-efficiency lighting device of the present invention.

[0024] In the present invention, a lighting body having an LED module that irradiates light downwards and is provided inside so as to effectively dissipate heat generated from an LED module to secure the stability of the LED module and extend its lifespan, and to maximize the temperature difference between a high temperature part and a low temperature part of a thermoelectric element to increase the efficiency of power generation using the heat generated from the LED module, and in which air can be drawn in from the outside and air can be discharged toward the outside; And a lighting heat generation structure that is provided in the lighting body and can produce electric energy using heat generated from an LED module; the lighting heat generation structure includes a heat collection module that collects heat generated from the LED module, a main thermoelectric element that forms a high-temperature portion on one surface due to the heat collected through the heat collection module, and a main cooling module that cools the other surface of the main thermoelectric element so that a low-temperature portion is formed on the other surface of the main thermoelectric element, wherein the heat collection module includes a first heat collection plate that is formed to have a size and shape corresponding to at least the LED module and is provided to be in contact with the upper surface of the LED module, and a second heat collection plate that is formed to have a size corresponding to at least the first heat collection plate and is provided on the upper side of the first heat collection plate to receive heat directly or indirectly from the first heat collection plate and has one surface of the main thermoelectric element in contact with the upper surface.

[0025] The scope of the present invention is not limited to the embodiments described below, and various modifications may be made by a person having ordinary knowledge in the relevant technical field without departing from the technical spirit of the present invention.

[0026] Hereinafter, the high-efficiency lighting device of the present invention is described in detail with reference to the attached drawings 1 to 21.

[0027]

[0028] The high-efficiency lighting device of the present invention includes a lighting body (L) having an LED module (10) inside that irradiates light downward as shown in FIGS. 1 and 2, and a lighting heat generation structure (A) that can produce electric energy using heat generated from the LED module (10).

[0029] The lighting body (L) of the present invention may be a lighting body installed indoors, such as a living room light, or a lighting body installed outdoors, such as a street light or a floodlight. In addition, the lighting body (L) is configured to allow outside air to flow in and out, and for this purpose, an inlet (20) may be formed through which outside air may flow in, and an outlet (30) may be formed through which outside air may flow out. The inlet (20) and the outlet (30) may be formed in various directions, but it is preferable that they be formed in an opposing direction so as to form a smooth air flow and to effectively cool the cooling module constituting the lighting heat generation structure (A) by the internal air flow. For example, as illustrated in FIG. 1, an inlet (20) is formed at the front end of the lighting body (L), and an outlet (30) is formed at the rear end of the lighting body (L), so that air flow can be formed in the front-back direction in the lighting body (L), and as illustrated in FIG. 2, an inlet (20) is formed at the front end and one side of the lighting body (L), and an outlet (30) is formed at the rear end and the other side of the lighting body (L), so that air flow can be formed in the front-back direction as well as the side direction in the lighting body (L).

[0030] And the lighting body (L) has a transparent window (40) provided on the bottom surface corresponding to the LED module (10), so that when the LED module (10) emits light, light can be irradiated downward through the transparent window (40). In addition, as shown in FIGS. 15, 16, and 19, the lighting body (L) is formed so that the upper end is longer than the lower end, so that not only can the power generation efficiency be improved through an additional configuration utilizing the wide upper end, but also rain or snow can be effectively prevented from entering through the inlet (20) or outlet (30).

[0031] The lighting heat generation structure (A) of the present invention is provided within the lighting body (L) described above as shown in FIGS. 1 and 2, and includes a heat collection module (100), a main thermoelectric element (200), and a main cooling module (300) as shown in FIGS. 1 to 7.

[0032] The heat collection module (100) is configured to collect heat generated from the LED module (10), is provided on the upper side adjacent to the LED module (10), and the heat collection module (100) in the present invention includes a plurality of heat collection plates. For example, the heat collection module (100) may include a first heat collection plate (110) provided to be in contact with the upper surface of the LED module (10), and a second heat collection plate (120) provided on the upper side of the first heat collection plate (110) to directly or indirectly receive heat from the first heat collection plate (110) and have one surface of the main thermoelectric element (200) in contact with the upper surface.

[0033] The first heat collector (110) is preferably formed in the form of a plate having at least a size and shape corresponding to the LED module (10), and is provided so that the bottom surface is in contact with the entire upper surface of the LED module (10), and the second heat collector (120) is preferably formed so as to have at least a size corresponding to the first heat collector (110). In addition, the first heat collector (110) provided so as to be in direct contact with the upper surface of the LED module (10) is preferably made of, for example, a copper material having excellent heat dissipation conductivity, so as to quickly dissipate heat generated from the LED module (10) from the LED module (10), thereby ensuring the stability of the LED module (10) and extending its lifespan.

[0034] The main thermoelectric element (200) is configured to produce electric energy by utilizing the temperature difference between one side and the other side. A high temperature part is formed on one side due to the heat collected through the heat collection module (100), and the other side is cooled by the main cooling module (300) described later to form a low temperature part on the other side. Since an electromotive force is generated due to the temperature difference between the high temperature part and the low temperature part, electric energy can be produced. This main thermoelectric element (200) may be formed to have a size corresponding to the size of the second heat collection plate (120) with which one side is in contact, or to have a size smaller than the size of the second heat collection plate (120).

[0035] The main cooling module (300) is provided to be in contact with the other surface of the main thermoelectric element (200), as illustrated in FIGS. 1 to 4, 6, and 7, so that a low-temperature portion having a relatively lower temperature than one surface of the main thermoelectric element (200) is formed on the other surface of the main thermoelectric element (200). For example, it is preferable that the main cooling module (300) be formed to have a larger area than the heat collection module (100) so that a maximum temperature difference can be formed in the main thermoelectric element (200).

[0036] That is, the heat collection module (100) includes a first heat collection plate (110) and a second heat collection plate (120), and quickly and effectively transfers the heat generated from the LED module (10) to the main cooling module (300), thereby dissipating heat from the LED module (10). Therefore, the LED constituting the LED module (10) is not damaged by the high temperature heat generated due to the operation of the LED module (10), thereby ensuring the stability of the LED module (10) and extending its lifespan. In addition, the main thermoelectric element (200) and the main cooling module (300) in the present invention are provided on the upper side of the first heat collection plate (110) and the second heat collection plate (120), and the air flowing in and out of the interior of the lighting body (L) passes through the main cooling module (300), so that a low-temperature part of the main thermoelectric element (200) can be effectively formed, thereby increasing the power generation efficiency of the main thermoelectric element (200).

[0037] The second heat collector (120) of the lighting heat generation structure (A) according to the first embodiment is provided so that its bottom surface is in contact with the upper surface of the first heat collector (110), as illustrated in FIGS. 1 to 4, so that heat can be directly transferred from the first heat collector (110) and transferred to the main thermoelectric element (200). At this time, the second heat collector (120) may be formed so as to be in contact with the upper surface of the first heat collector (110), as illustrated in FIG. 3, and to surround the side surfaces of each of the first heat collector (110) and the LED module (10). As a specific example, when the LED module (10) and the first heat collector plate (110) are formed in a rectangular plate shape, the second heat collector plate (120) can be formed to be in contact with the entire upper surface of the first heat collector plate (110) and to surround at least one side of each of the first heat collector plate (110) and the LED module (10), so that heat generated from the LED module (10) can be transferred upward more quickly.

[0038] The second heat collector (120) of the lighting heat generation structure (A) according to the second embodiment is provided so as not to come into contact with the first heat collector (110), as illustrated in FIGS. 6 and 7, so as to indirectly receive heat from the first heat collector (110) and transfer heat to the main thermoelectric element (200). At this time, the lighting heat generation structure (A) may further include a first auxiliary thermoelectric element (400) provided between the first heat collector (110) and the second heat collector (120) so that one surface where a high temperature portion is formed faces the first heat collector (110). At this time, the first auxiliary thermoelectric element (400) is preferably formed to have the same size and shape as the first heat collector (110), and one or more may be provided.

[0039] The lighting heat power generation structure (A) according to the specific embodiment 2-1 may further include one first auxiliary thermoelectric element (400), as illustrated in FIG. 6, and at this time, the first auxiliary thermoelectric element (400) may be provided such that one surface is in contact with the upper surface of the first heat collector plate (110) and the other surface is in contact with the lower surface of the second heat collector plate (120). In addition, the lighting heat power generation structure (A) according to the specific embodiment 2-2 may further include a plurality of first auxiliary thermoelectric elements (400), as illustrated in FIG. 7. At this time, the heat collection module (100) may further include a third heat collector plate (130) provided between the first heat collector plate (110) and the second heat collector plate (120), and the first auxiliary thermoelectric element (400) may be provided such that it is in contact with the upper surface and the lower surface of the third heat collector plate (130), respectively. In this way, in addition to the main thermoelectric element (200), electric energy can be additionally produced through the first auxiliary thermoelectric element (400), thereby further improving power generation efficiency.

[0040] The second heat collector (120) of the lighting heat generation structure (A) according to the third embodiment, which is a modified example of the first and second embodiments described above, may include a second heat collector (120a) and a second heat collector (120b), as illustrated in FIGS. 4, 6, and 7. The second heat collector (120a) may be formed so that it is arranged parallel to the first heat collector (110), the main thermoelectric element (200) is in contact with the upper surface, and at least one edge is positioned on the outer side of the main cooling module (300). In addition, the second heat collector (120b) may be formed so as to extend so as to form a structure that is bent from the edge of the second-first heat collector (120a) positioned on the outer side of the main cooling module (300).

[0041] At this time, the lighting heat power generation structure (A) according to the third embodiment may further include a second auxiliary thermoelectric element (500) having one surface where a high temperature portion is formed in contact with the second-second heat collector (120b), as illustrated in FIGS. 4, 6, and 7, and an auxiliary cooling module (600) that cools the other surface of the second auxiliary thermoelectric element (500) so that a low temperature portion is formed on the other surface of the second auxiliary thermoelectric element (500). Accordingly, in addition to the main thermoelectric element (200), electric energy can be additionally produced through the second auxiliary thermoelectric element (500), thereby further improving power generation efficiency. In addition, it is preferable that the auxiliary cooling module (600) be positioned on the air flow flowing into and out of the lighting body (L) so that cooling is performed according to the air flow, and the inflow and outflow of air can also be performed more smoothly.

[0042] In the lighting heat generation structure (A) according to the specific 3-1 embodiment, the 2-2 heat collector (120b) extended from at least one edge of the 2-1 heat collector (120a) located on the outer side of the main cooling module (300) may be formed so that the longitudinal cross-section forms an 'L' or 'L' shape, as illustrated in FIG. 4b, and the second auxiliary thermoelectric element (500) and the auxiliary cooling module (600) may be provided on the upper side of the 2-2 heat collector (120b). At this time, as illustrated in FIG. 5, the auxiliary cooling module (600) may be configured as a heat dissipation fan in order to increase the cooling efficiency of the main cooling module (300). In this case, the main cooling module (300) may include a heat sink (310) in a plate shape with one side in contact with the other side of the main thermoelectric element (200), and a plurality of cooling protrusions (320) that are formed in a plate shape and are placed at regular intervals in a parallel manner on the heat sink (310) so as to be perpendicular to the heat sink (310). It is preferable that the main cooling module (300) be arranged so that the air flow flowing into and out of the lighting body (L) and the air flow between the plurality of cooling protrusions (320) can be parallel. Accordingly, the auxiliary cooling module (600) configured as a heat sink fan can form a strong air flow between the plurality of cooling protrusions (320).

[0043] In the lighting heat generation structure (A) according to the specific 3-2 embodiment, the 2-2 heat collector (120b) may be formed to be orthogonal to the 2-1 heat collector (120a), as illustrated in FIGS. 6 and 7, and the second auxiliary thermoelectric element (500) and the auxiliary cooling module (600) may be provided on the outside of the 2-2 heat collector (120b). At this time, it is preferable that the 2-1 heat collector (120a), the second auxiliary thermoelectric element (500), and the auxiliary cooling module (600) be formed or installed so as to minimize interference with the air flow flowing into and out of the lighting body (L).

[0044] Meanwhile, the main cooling module (300) and auxiliary cooling module (600) applied to the present invention can have various structures so that cooling of the other surface of the thermoelectric element in contact with them can be effectively achieved.

[0045] The cooling module (300) according to the first embodiment may include a heat sink (310) having a plate shape as illustrated in FIG. 8 and one surface of which is in contact with the other surface of the thermoelectric element (200), and a plurality of cooling protrusions (320) in a plate shape may be protruded at regular intervals on the other surface of the heat sink (310) to increase the contact area with air. The heat sink (310) may be provided with at least one flow pipe (330) through which cooling water flows as illustrated in FIG. 8b, so that cooling performance through the cooling water can be exhibited together. In addition, the main cooling module (300) or / and the auxiliary cooling module (600) may further include a heat sink fan (340) that is provided to be in contact with the cooling protrusions (320) formed on the heat sink (310) as illustrated in FIG. 8c and forms an air flow toward the outside, thereby increasing cooling efficiency.

[0046] The cooling module (300) according to the second embodiment may include a heat sink (310) having a plate shape as illustrated in FIG. 9, one surface of which is in contact with the other surface of the thermoelectric element (200), and a plurality of cooling protrusions (370) that are provided at regular intervals on the other surface of the heat sink (310). In this way, the cooling module (300) including a plurality of cooling protrusions (270) can be more easily cooled by air flowing in the front-back direction as well as the side direction.

[0047] The cooling module (300) according to the third embodiment may be configured to include a heat sink (310), a cooling plate (350), and a heat pipe (360), as illustrated in FIGS. 10 and 11. The heat sink (310) has a plate shape that is corresponding to or slightly larger than the thermoelectric element that it contacts, and one side may contact the other side of the thermoelectric element. At least one heat pipe (360) may be arranged to be connected to the heat sink (310) and face the outside of the heat sink (310). In addition, the cooling plate (350) may be formed to have a larger size than the heat sink (310) to improve heat dissipation performance, and a plurality of them may be spaced apart from each other at predetermined intervals in the longitudinal direction of the heat pipe (360).

[0048] A cooling module (300) according to the fourth embodiment may be configured to include a heat sink (310), a cooling plate (350), a heat pipe (360), and a heat sink fan (340), as illustrated in FIGS. 12 and 13. The heat sink (310) has a plate shape and is provided such that one surface thereof is in contact with the other surface of an adjacent thermoelectric element. Although not illustrated in the drawing, a plurality of cooling protrusions (320) may be formed at regular intervals on the other surface of the heat sink (310) as needed. In addition, a plurality of cooling plates (320) may be provided and arranged to be spaced apart from each other by a predetermined interval, and a plurality of cooling plates (350) may be provided to be spaced apart from the heat sink (310). At this time, a plurality of cooling plates (350) can be fixed via heat pipes (360), and as illustrated in FIG. 12, they can be installed perpendicular to the heat sink (310), and as illustrated in FIG. 13, they can also be installed parallel to the heat sink (310). The heat pipes (360) are installed to penetrate the plurality of cooling plates (350) while connecting the heat sink (310) and the plurality of cooling plates (350), and serve to quickly transfer the heat of the heat sink (310) to the cooling plate (350). Accordingly, it is preferable that the heat pipes (360) pass through the inside of the heat sink (310). In addition, the heat dissipation fan (340) is installed adjacent to the plurality of cooling plates (350) so that the heat of the cooling plates (350) is quickly discharged to the outside.

[0049] Meanwhile, the present invention may further include a solar cell panel (B) provided on the upper side of the lighting heat generation structure (A) and generating electric energy using sunlight. As illustrated in FIGS. 14 and 15, the solar cell panel (B) may be provided to penetrate the upper surface of the lighting body (L) and be exposed to the outside, and is preferably formed in the shape of a plate having a size sufficient to cover the entire lighting heat generation structure (A) provided in the lighting body (L) from the upper side, so that it also serves to block sunlight from the main cooling module (300) (and auxiliary cooling module (600)) included in the lighting heat generation structure (A). At this time, as illustrated in FIG. 15, the lighting body (L) is formed so that the upper side is longer than the lower side, so that the solar cell panel (B) can be installed more widely at the upper side, thereby further improving power generation efficiency, and can effectively prevent rain or snow from entering through the inlet (20) or the outlet (30).

[0050] The present invention may further include a solar heat collection structure (C) capable of collecting solar heat and transferring heat to a heat collection module (100) of a lighting heat generation structure (A), and the solar heat collection structure (C) may include a vacuum member (700) and a heat collection member (800), as illustrated in FIGS. 16 to 19. The vacuum member (700) may be formed to have a circular or semicircular longitudinal cross-section, but is preferably formed to have a fan-shaped longitudinal cross-section so as to increase heat collection efficiency by adjusting the angle according to sunlight. In addition, the vacuum member (700) having a fan-shaped longitudinal cross-section may be positioned so that a point forming the maximum width of the longitudinal cross-section protrudes beyond the main cooling module (300), and thus the vacuum member (700) may additionally serve to block sunlight from the main cooling module (300). This vacuum member (700) is provided so that its interior is in a vacuum state to effectively collect solar heat and penetrates the upper surface of the lighting body (L). In addition, the heat collection member (800) is provided on the inner lower part of the vacuum member (700) and collects solar heat through the vacuum member (700).

[0051] The present invention may additionally provide a solar panel (B) to a lighting heat generating structure (A) as shown in FIGS. 14 and 15, or may additionally provide a solar heat collecting structure (C) to a lighting heat generating structure (A) as shown in FIG. 16, and may include all of a lighting heat generating structure (A), a solar panel (B), and a solar heat collecting structure (C) as shown in FIGS. 17 to 19 to maximize power generation efficiency.

[0052] For example, a lighting heat power generation structure (A) having a solar heat collection structure (C) provided on the upper side may have a plurality of solar heat collection structures (C) arranged at a predetermined interval from each other as illustrated in FIGS. 17 to 19, and at this time, electric energy can be generated using solar heat collected on the heat collection member (800) of the solar heat collection structure (C). To this end, the heat collection module (100) constituting the lighting heat power generation structure (A) may be formed so as to be in contact with the heat collection member (800), and a third auxiliary thermoelectric element (900) may be additionally provided near the heat collection module (100) to which the heat collection member (800) is in contact. In addition, the outer ends of each of the plurality of solar heat collection structures (C) may be connected by a solar cell panel (B).

[0053] Meanwhile, the present invention may further include a battery (D) that can be charged through electric energy produced from the lighting heat generation structure (A) as illustrated in FIGS. 20 and 21, and may further include a control module (E) that can control the operation of at least one of the lighting heat generation structure (A) and the battery (D). That is, the present invention may further include only the battery (D) or the control module (E), or may further include the control module (E) together with the battery (D).

[0054] For example, as illustrated in FIG. 20, when the light heat generation structure (A) further includes a battery (D) and a control module (E), the electric energy produced in the thermoelectric element (200, 400, 500) can be used to charge the battery (D) under the control of the control module (E), and power supply to an external electronic device through the battery (D) can also be performed by the control module (E). In addition, as illustrated in FIG. 21, when the cooling module (300, 600) constituting the light heat generation structure (A) includes a heat dissipation fan (340), the control module (E) can control the electric energy produced in the thermoelectric element (200, 400, 500) to be used to drive the heat dissipation fan (340), or the electric energy stored in the battery (400) to be used to drive the heat dissipation fan (340).

[0055] As another example, the thermoelectric element (200, 400, 500) of the present invention can be divided into a plurality of power generation zones as illustrated in FIGS. 20b, 20c, 21b, and 21c, and the control module (E) can control the operation of each of the plurality of power generation zones. For example, the control module (E) can supply electric energy produced from any one of the plurality of power generation zones to an external electronic device or a heat dissipation fan (340) constituting a cooling module (300, 600), and store electric energy produced from the remaining power generation zones in a battery (D).

[0056] In addition, the control module (E) monitors the lighting heat generation structure (A) and the battery (D), and can control the rotation speed of the heat dissipation fan (340) or change the use of the electric energy produced from the thermoelectric element (200, 400, 500) based on the monitoring results.

[0057] [Explanation of symbols]

[0058] A: Lighting heat generation structure

[0059] B: Solar panel

[0060] C: Solar collector structure

[0061] D: Battery

[0062] E: Control module

[0063] L: Lighting body

[0064] 10: LED module 20: Inlet

[0065] 30: Outlet 40: Transmission window

[0066] 100: Thermal collector module 110: First thermal collector plate

[0067] 120: 2nd collector plate 120a: 2-1 collector plate

[0068] 120b: 2nd-2nd collector plate 130: 3rd collector plate

[0069] 200: Main thermoelectric elements

[0070] 300: Main cooling module 310: Heat sink

[0071] 320: Cooling block 330: Flow pipe

[0072] 340: Heat sink fan 350: Cooling plate

[0073] 360: Heat pipe 370: Cooling protrusion

[0074] 400: First auxiliary thermoelectric element

[0075] 500: Second auxiliary thermoelectric element

[0076] 600: Auxiliary cooling module

[0077] 700: Vacuum member

[0078] 800: Heat collecting member

[0079] 900: Third auxiliary thermoelectric element

Claims

1. A lighting body (L) having an LED module (10) that irradiates light downwards and through which air can be drawn in from the outside and discharged toward the outside; and a lighting heat generation structure (A) that is provided within the lighting body (L) and can produce electric energy using heat generated from the LED module (10); The above lighting heat generation structure (A) includes a heat collection module (100) that collects heat generated from an LED module (10), a main thermoelectric element (200) that forms a high-temperature part on one side due to the heat collected through the heat collection module (100), and a main cooling module (300) that cools the other side of the main thermoelectric element (200) to form a low-temperature part on the other side of the main thermoelectric element (200). The above-mentioned heat collection module (100) is a high-efficiency lighting device characterized in that it includes a first heat collection plate (110) formed to have a size and shape corresponding to at least an LED module (10) and provided to be in contact with the upper surface of the LED module (10), and a second heat collection plate (120) formed to have a size corresponding to at least the first heat collection plate (110) and provided on the upper side of the first heat collection plate (110) to directly or indirectly receive heat from the first heat collection plate (110) and one surface of a main thermoelectric element (200) is in contact with the upper surface.

2. In paragraph 1, The above lighting heat generation structure (A) is a high-efficiency lighting device characterized in that it further includes a first auxiliary thermoelectric element (400) provided between a first heat collector (110) and a second heat collector (120) so that one surface where a high temperature section is formed faces the first heat collector (110).

3. In paragraph 2, The above-mentioned heat collection module (100) further includes a third heat collection plate (130) provided between the first heat collection plate (110) and the second heat collection plate (120). A high-efficiency lighting device characterized in that the first auxiliary thermoelectric element (400) is provided to be in contact with the upper and lower surfaces of the third heat collecting plate (130), respectively.

4. In any one of paragraphs 1 to 3, The second heat collector (120) includes a second-first heat collector (120a) arranged parallel to the first heat collector (110) and having a main thermoelectric element (200) in contact with the upper surface thereof and having at least one edge positioned on the outer side of the main cooling module (300), and a second-second heat collector (120b) formed to extend so as to form a structure bent from the edge of the second-first heat collector (120a) positioned on the outer side of the main cooling module (300). The above lighting heat generation structure (A) is a high-efficiency lighting device characterized in that it further includes a second auxiliary thermoelectric element (500) having one surface where a high-temperature section is formed in contact with a second-second heat collecting section (120b), and an auxiliary cooling module (600) that cools the other surface of the second auxiliary thermoelectric element (500) so that a low-temperature section is formed on the other surface of the second auxiliary thermoelectric element (500).

5. In paragraph 4, The above 2-2 collector (120b) is formed so that the cross-section forms an 'L' or 'L' shape. A high-efficiency lighting device characterized in that the second auxiliary thermoelectric element (500) and auxiliary cooling module (600) are provided on the upper side of the second-second heat collection unit (120b).

6. In paragraph 5, The above main cooling module (300) includes a heat sink (310) in the shape of a plate and one side of which is in contact with the other side of the main thermoelectric element (200), and a plurality of cooling protrusions (320) in the shape of a plate and which are installed in a row at a set interval on the heat sink (310) so as to be perpendicular to the heat sink (310). A high-efficiency lighting device characterized in that the above auxiliary cooling module (600) is a heat dissipation fan that forms an air flow between a plurality of cooling protrusions (320).

7. In paragraph 4, The above 2-2 heat collector (120b) is formed to be perpendicular to the 2-1 heat collector (120a), A high-efficiency lighting device characterized in that the second auxiliary thermoelectric element (500) and auxiliary cooling module (600) are provided on the outside of the second-second heat collection unit (120b).

8. In paragraph 1, A high-efficiency lighting device characterized in that the second heat collector (120) is formed to be in contact with the upper surface of the first heat collector (110) and to surround the side surfaces of each of the first heat collector (110) and the LED module (10).

9. In paragraph 1, A high-efficiency lighting device characterized by further including a solar cell panel (B) that is formed to penetrate the upper surface of the lighting body (L) and be exposed to the outside, and that produces electric energy using sunlight.

10. In paragraph 9, A solar heat collection structure (C) further comprising a vacuum member (700) formed to have a fan-shaped cross-section, a vacuum state inside, and provided to penetrate the upper surface of the lighting body (L), and a heat collection member (800) provided on the inner lower side of the vacuum member (700) to collect solar heat through the vacuum member (700); The lighting heat generation structure (A) having the solar heat collection structure (C) provided on the upper side is configured such that a plurality of solar heat collection structures (C) are arranged at a predetermined interval from each other, and can produce electric energy by using solar heat collected on the heat collection member (800) of the solar heat collection structure (C). A high-efficiency lighting device characterized in that the above solar cell panel (B) is arranged to connect the outer ends of each of a plurality of solar heat collection structures (C).

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