Sunlight condensing device capable of adjusting condenser angle by using sliding structure

Abstract

The present invention relates to a solar light collecting device capable of adjusting the angle of a light collector by using an inclined portion having a slidable structure. In the present invention, when one arm structure of the inclined portion slides along the sliding frame portion, the other arm structure slides on the rear surface of the condenser and causes an inclined motion to adjust the angle of the condenser. Meanwhile, the angle of the reflector reflecting the parallel light is automatically adjusted according to the change of the angle caused by the sliding motion of the inclined part. Therefore, according to the structure of the present invention, tilting movement of the condenser can be performed with the diameter of the incident light mirror as the central axis. Therefore, the area required for tilting the condenser can be significantly reduced, and miniaturization and high integration of the device can be achieved. In addition, since the number of materials for light condensation and movement of the materials can be minimized, the device can achieve light weight. Further, since the cleaning portion is mounted externally, an operator does not need to perform a cleaning operation and move for cleaning, and thus excellent operational convenience and reliability can be obtained. In addition, due to low manufacturing and maintenance cost, the equipment has economic benefits.

Description

Technical Field

[0001] The present invention relates to a solar light concentrating device that uses a sliding structure to adjust the angle of a concentrating unit. Specifically, the present invention relates to a solar light concentrating device that applies a slidable structure to a tilting unit to minimize the surface area required for the tilting movement of the concentrating unit. Background Art

[0002] A solar concentrator is a device that tracks the sun, concentrates sunlight and transmits it to a certain point. Solar concentrator technology has attracted attention due to its high efficiency and environmental friendliness, as it can use solar energy, a new type of renewable energy, without going through an energy conversion process.

[0003] As urban buildings become taller and more concentrated, sunlight-related problems are increasing. Using solar concentrator technology can solve these problems because it can effectively transmit sunlight to indoor spaces that are not easily accessible. For example, solar concentrators can be effectively used for various types of natural lighting, including indoor lights and grow lights.

[0004] In order to develop an efficient solar concentrator, the concentrator unit must be able to make precise tilting movements according to the changing position of the sun. In addition, in order to make the device lighter, smaller, highly integrated and economical, it is necessary to minimize the surface area required for the tilting movement of the concentrator unit and the amount of movement and material required to operate the device.

[0005] As an example of an existing solar concentrator, Korean Patent Gazette No. 10-0515400 relates to a device for collecting sunlight using a solar concentrator, and discloses a device for concentrating sunlight by secondary reflection and transmitting it through an optical fiber. However, the method using optical fibers has the disadvantages of requiring expensive connecting materials and optical fibers and a complicated installation process.

[0006] Korean Patent Gazette No. 10-1770311 discloses a sunlight concentrating device that reflects sunlight at least twice inside to concentrate light, and reflects the concentrated light onto a mirror to guide it to an optical path. However, since the tilt center axis of the concentrating unit in such a concentrating device is located outside the concentrating unit, a large surface area is required for the concentrating unit to perform tilting motion, which makes it difficult to miniaturize and highly integrate the device. In addition, since the device uses a reflector instead of an optical fiber to transmit sunlight, it has advantages in terms of cost and installation, but there is still a problem that it requires complex control signals and a large amount of power to change the angle of the reflective unit when the concentrating unit performs tilting motion.

[0007] Therefore, for sunlight concentrating devices that use reflectors for transmission, a new technology needs to be developed to improve the concentration efficiency, reduce manufacturing costs, and achieve lightweight, miniaturization, and high integration of the device. DETAILED DESCRIPTION OF THE INVENTION Technical issues

[0008] The object of the present invention is to provide a solar light concentrating device with high light concentrating efficiency, light weight, small volume, high integration, and low manufacturing and maintenance costs. Solutions to technical problems

[0009] To achieve the objective, the present invention provides a sunlight focusing device, comprising: a focusing unit, for collecting sunlight, converting it into parallel light, and transmitting the parallel light to a parallel light reflecting unit; a tilting unit, for adjusting the angle of the focusing unit, comprising two arm structures interconnected by a hinge structure; a parallel light reflecting unit, connected to the tilting unit by a hinge, and reflecting the parallel light transmitted from the focusing unit onto a transmission unit; a sliding frame unit, to which the tilting unit is slidably attached; and a transmission unit, for transmitting the light reflected by the parallel light reflecting unit to the outside to output sunlight.

[0010] In the present invention, the tilting unit may include: a first arm structure slidably mounted on the rear of the focusing unit; and a second arm structure slidably mounted on the sliding frame unit.

[0011] In the present invention, the focusing unit may include: an incident light reflector, including a first parabolic mirror, for collecting sunlight; a focusing reflector, positioned as a mirror facing the incident light reflector, including a second parabolic mirror, for reflecting the light collected by the incident light reflector to the through hole to transmit the parallel light to the parallel light reflecting unit.

[0012] In the present invention, the focusing unit may further include: a reflector connecting device for connecting the incident light reflector and the focusing reflector; and a tilting unit connecting device located at the rear of the incident light reflector, to which the first arm structure is slidably attached.

[0013] In the present invention, the light collecting unit may further include an optical sensor for detecting sunlight.

[0014] In the present invention, the solar concentrating device connects the tilting unit with the parallel light reflecting unit, and may also include a tilting adjustment unit, which matches the angle of the parallel light reflecting unit with the angle of the parallel light transmitting unit according to the sliding of the tilting unit.

[0015] In the present invention, the parallel light reflecting unit may include: a parallel light reflector connected to the tilting unit through a hinge structure and reflecting the parallel light onto the transmission unit; two extension rods extending in parallel from one end of the parallel light reflector; and a sliding rod slidably connected along the two extension rods.

[0016] In the present invention, the tilt adjustment unit connects at least one of the tilt unit and the focusing unit to the slide bar through a hinge structure, thereby ensuring that the angle of the parallel light reflection unit is consistent with the angle of the parallel light transmission unit.

[0017] In the present invention, the transmission unit may include one or more reflectors to transmit the light reflected by the parallel light reflection unit toward the output direction.

[0018] In the present invention, the solar light concentrating device may further include a driving unit that performs a tilting motion in response to a change in the solar altitude angle and a driving unit that performs a rotating motion in response to a change in the solar position.

[0019] In the present invention, the solar light concentrating device may further include: a transparent shell covering the upper part of the device; and a protective frame unit supporting the transparent shell, including a supporting frame covering the lower part of the device.

[0020] In the present invention, the sunlight concentrating device is rotatably mounted outside the transparent housing, and may further include a cleaning unit for cleaning the transparent housing. Effects of the Invention

[0021] The solar light concentrating device of the present invention can adopt a slidable tilting unit, so that the concentrating unit can be tilted with the diameter of the incident light reflector as the central axis. Therefore, the surface area required for the tilting concentrating unit can be greatly reduced by using the present invention, thereby realizing the miniaturization and high integration of the device. In addition, it minimizes the materials and the number of movements required for concentrating, thereby making the device light in weight, convenient and stable in operation, and having economic advantages such as low manufacturing and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The simplified structure of a solar light concentrating device according to an embodiment of the present invention is shown.

[0023] Figure 2 A front perspective view showing a light concentrating unit in a sunlight concentrating device according to an embodiment of the present invention.

[0024] Figure 3 A rear perspective view showing an incident light reflector in a sunlight concentrating device according to an embodiment of the present invention.

[0025] Figure 4 A front perspective view showing a concentrating reflector in a sunlight concentrating device according to an embodiment of the present invention.

[0026] Figure 5 The rear structure of the concentrating reflector on which the optical sensor is installed in the sunlight concentrating device according to the embodiment of the present invention is shown.

[0027] Figure 6 A perspective view showing a tilting unit in a sunlight concentrating device according to an embodiment of the present invention.

[0028] Figure 7 The structure of a tilting unit to which a parallel light reflecting unit is attached in a sunlight concentrating device according to an embodiment of the present invention is shown.

[0029] Figure 8 The connecting structure of the tilting unit and the parallel light reflecting unit in the sunlight concentrating device according to the embodiment of the present invention is shown.

[0030] FIG9 shows the angle change between the focusing unit and the parallel light reflecting unit and the movement change of the tilt adjusting unit caused by the sliding of the tilting unit in the sunlight focusing device according to the embodiment of the present invention.

[0031] FIG. 10 shows a cross-sectional view of a transmission unit to which a sliding frame unit is fixed in a sunlight concentrating device according to an embodiment of the present invention.

[0032] Fig.11 The simplified structure of a sunlight concentrating device according to an embodiment of the present invention is shown, which includes a driving unit.

[0033] Fig.12 A simplified structure of a solar concentrating device according to an embodiment of the present invention is shown, which includes an inner frame unit.

[0034] Fig.13 The simplified structure of the solar concentrating device according to the embodiment of the present invention is shown, wherein the gears of the rotating module are located on the lower surface of the lower frame.

[0035] Fig.14 The simplified structure of the protection frame unit located on the solar concentrating device according to the embodiment of the present invention is shown.

[0036] Fig.15 A simplified structure of a transparent housing in which a cleaning unit is installed in a protective frame unit according to an embodiment of the present invention is shown.

[0037] Fig.16 A simplified structure of a hinge of a cleaning unit according to an embodiment of the present invention is shown, in which a cleaning module and an auxiliary cleaning module are installed.

[0038] FIG. 17 shows a front perspective view and a rear perspective view of a sunlight concentrating device according to an embodiment of the present invention. Best Mode for Carrying Out the Invention

[0039] Specific embodiments of the present invention will be described in detail below. Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those skilled in the art to which the present invention belongs. Generally speaking, the nomenclature used in this specification is well-known and commonly used in the art.

[0040] The invention relates to a sunlight focusing device capable of easily adjusting the angle of a focusing unit by sliding.

[0041] Specifically, in the present invention, the tilting unit can be designed as a sliding structure, so that the focusing unit can tilt with the diameter of the incident light reflector as the central axis. Therefore, the present invention can greatly reduce the area required for the tilting of the focusing unit, and has the advantages of being able to achieve miniaturization and high integration of the device. In addition, it minimizes the materials and the number of movements required for focusing, so that the device is light in weight, easy and stable to operate, and has economic advantages such as low manufacturing and maintenance costs.

[0042] When describing the present invention, the tilting movement of the focusing unit refers to the adjustment of the angle of the focusing unit to track the movement of sunlight as the solar altitude angle changes, and the axis centered on this angle adjustment is called the central axis of the tilting. In the present invention, the tilting movement of the focusing unit is described based on the adjustment of the reflection angle of the incident light reflector in the focusing unit, that is, the tilting movement of the incident light reflector. The tilting angle of the focusing unit is the angle at which the incident light reflector tilts due to the increase in the solar altitude angle, and the angle of the incident light reflector relative to the bottom surface of the device in the vertical direction is described as 0°.

[0045] In describing the present invention, the rotational movement of the device is the movement of tracking sunlight in response to changes in the position of the sun, and refers to rotation around an axis perpendicular to the bottom surface of the device. Since in a solar light concentrator, the concentrated sunlight is output to a focal area, the central axis of the device rotation may be the same as the central axis of the final output path.

[0046] Since the sun rises in the east and sets in the west, the rotation angle needs to be at least 180 degrees. In order to make the solar concentrating device track the changes in the solar altitude angle while rotating, it is necessary to perform a tilt movement from 0° to 90° to track the sun.

[0047] In the present invention, the tilting movement of the focusing unit and the rotational movement of the device both occur on the vertical central axis of the device, thereby minimizing the movement of tracking sunlight. Therefore, the present invention can realize the miniaturization and lightness of the sunlight focusing device, and reduce the manufacturing and maintenance costs.

[0048] The structure of the solar light concentrating device according to the embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings. The embodiments described in conjunction with the accompanying drawings do not limit the scope of the present invention, but are intended to explain the present invention to a person skilled in the art. The same reference numerals in the drawings represent the same components, and the size or thickness of each component may be exaggerated for clarity of description.

[0049] Figure 1 The simplified structure of a solar light concentrating device according to an embodiment of the present invention is shown.

[0050] See also Figure 1 The solar light concentrating device of the embodiment of the present invention may include: a concentrating unit, concentrating incident solar light into high-density parallel light (100); a tilting unit (200), adjusting the angle of the concentrating unit (100) by sliding; a parallel light reflecting unit (300), connected to the tilting unit (200) by a hinge structure, and reflecting the high-density parallel light; a sliding frame unit (400), the tilting unit (200) being slidably attached to the sliding frame unit (400); and a transmission unit (500) fixing the sliding frame unit (400), receiving and transmitting light reflected by the parallel light reflecting unit (300).

[0051] In the present invention, the function of the light collecting unit (100) is to collect incident sunlight, convert it into parallel light, and transmit the parallel light to the parallel light reflecting unit (300).

[0052] Figure 2 1 is a front perspective view of a light focusing unit according to an embodiment of the present invention. The light focusing unit (100) may include an incident light reflector (110) having a first parabolic mirror; and a light focusing reflector (120) facing the incident light reflector mirror and having a second parabolic mirror. A parabolic mirror refers to a mirror having a parabolic reflecting surface. In the present invention, the first parabolic mirror may be a concave mirror, and the second parabolic mirror may be a convex mirror. In this structure, incident sunlight can be reflected by the parabolic mirror (110a) of the incident light reflector (110) to the focusing reflector (120). The parabolic structure of the light-collecting reflector (120) can collect reflected light into high-density parallel light. The parallel light travels to the rear of the incident light reflector (110) and is transmitted to the parallel light reflecting unit (300) through the through hole (111) at the center of the incident light reflector. In this structure, the outer peripheral surface of the light-collecting reflector (120) and the outer peripheral surface of the incident light reflector (110) can be arranged in parallel, so that the high-density parallel light can efficiently pass through the through hole (111).

[0054] In the present invention, the incident light reflector (110) and the focusing reflector (120) can be fixedly connected by a reflector connecting device (112). Specifically, the outer peripheral surface of the focusing reflector (120) can be connected to the incident light reflector (110) by one or more reflector connecting devices (112). For example, the reflector connecting device (112) can connect the outer peripheral surface of the focusing reflector (120) and the through hole (111), or connect the outer peripheral surface of the focusing reflector (120) and the outer peripheral surface of the incident light reflector (110). When the reflector connecting device (112) is formed to connect the outer peripheral surface of the focusing reflector (120) and the through hole (111), no shadow will be cast on the incident light reflector (110), which is preferred.

[0055] Figure 3 The invention is a rear perspective view of an incident light reflector (110) according to an embodiment of the present invention, wherein one or more tilting unit connecting devices (113) may be formed at the rear portion (110b) of the incident light reflector (110). The tilting unit connecting device (113) is a component to which a first arm structure (200) of a tilting unit described later is slidably mounted, and the structure enables sliding of the tilting unit (200) and tilting of the incident light reflector (110) to occur organically.

[0056] In one embodiment of the present invention, the focusing unit (100) may further include an optical sensor for detecting sunlight. When the position of the sun changes, the optical sensor determines whether tracking is appropriate and provides feedback, thereby being able to track sunlight more accurately and focus effectively.

[0057] Figure 4 The structure of the light-collecting reflector according to the embodiment of the present invention is shown. The front end of the focusing reflector (120) is provided with a convex mirror-shaped parabolic mirror (120a), which is used to reflect the light reflected by the mirror of the incident light reflector (110) to the through hole (111), and then transmit it to the parallel light reflection unit (300). The parabolic mirror (120a) of the focusing reflector (120) has a structure corresponding to the parabolic mirror (110a) of the incident light reflector (110), so that it can reflect the incident light reflected by the parabolic mirror (110a) of the incident light reflector (110a) at various angles into parallel light traveling in one direction. In addition, a supporting device (121) for supporting other components can also be formed behind the focusing reflector (120).

[0058] In an exemplary embodiment of the present invention, an optical sensor may be formed behind the light-collecting reflector. Figure 5The rear structure of the concentrating reflector is shown, wherein an optical sensor is formed at the rear, and one or more optical sensors (130) can be installed in the center of the rear of the concentrating reflector (120b). Here, the signal of the optical sensor (130) can be designed to be transmitted through a reflector connection device connecting the concentrating reflector and the incident light reflector.

[0059] In the present invention, the sunlight concentrating device comprises a tilting unit (200) for adjusting the angle of the concentrating reflector (100) to track the change of the solar altitude angle.

[0060] The present invention adopts a slidable tilting unit, and the focusing unit (100) can be designed to perform tilting movement with the diameter of the incident light reflector (110) as the central axis according to the sliding of the tilting unit. Therefore, the surface area required for tilting the focusing unit (100) can be greatly reduced by adopting the present invention, and the device can be manufactured with a simple structure, thereby making the device lightweight and miniaturized, easy to operate and stable, and reducing manufacturing and maintenance costs.

[0061] Figure 6 A perspective view of a tilting unit according to an embodiment of the present invention is shown. Figure 6 As shown, the tilting unit (200) may include two arm structures (210, 220) connected by a hinge structure. Specifically, the tilting unit (200) may include a first arm structure (210) slidably connected to the tilting unit connecting device (113) of the focusing unit (100) and a second arm structure (220) slidably connected to the sliding frame unit (400).

[0062] In the present invention, the first arm structure (210) may include two or more parallel sliding arms (211) that may be connected by a connecting member. The sliding arm (211) of the first arm (210) has a hole (211a) on the inner side, and the tilting unit connecting device (113) may be inserted into the hole, and a hinge connecting member (211b) may be formed for attaching the second arm structure (220) and the parallel light reflecting unit (not shown) to the inner side and the outer side, respectively.

[0063] In the present invention, the second arm structure (220) may include two or more parallel sliding arms (221) and one or more connecting members (222) connecting the sliding arms. The sliding arm (221) of the second arm structure (220) has a hole (221a) on the inner side, into which the sliding frame unit can be inserted, and the sliding arm (221) may have a hinge connecting member (221b) on the inner side.

[0064] In this structure, when the second arm structure (220) slides vertically along the sliding frame unit (400), the angle of the first arm structure (210) is organically adjusted, so that the focusing unit (100) performs tilting movement with the diameter of the incident light reflection surface parallel to the bottom surface of the device as the central axis.

[0065] In the present invention, the solar light concentrating device comprises a parallel light reflecting unit (300) for reflecting high-density parallel light passing through the through hole of the concentrating unit. The parallel light reflecting unit comprises a material capable of reflecting light, and preferably comprises a reflector with a mirror on one side. In addition, the upper part of the parallel light reflector may comprise two parallel extending extension rods and a sliding rod slidably connected along the two extension rods.

[0066] In this extension, the parallel light reflecting unit can be installed inside the tilting unit through a hinge structure. Figure 7 A perspective view of a tilting unit with a parallel light reflecting unit attached is shown; referring to the figure, the parallel light reflecting unit (300) can be attached to the first arm structure (210) of the tilting unit (200) via a hinge structure, having a double hinge structure, wherein the first arm structure (210) is attached to the second arm structure (220) via a hinge structure.

[0067] In the solar light concentrating device of the present invention, if the concentrating unit performs a tilting movement in response to the change in the solar altitude angle, the angle of the device becomes the traveling angle of the high-density parallel light. Therefore, in order to enable the high-density parallel light to be uniformly transmitted to the transmission unit, the angle of the reflected parallel light should also be organically adjusted according to the sliding of the tilting unit.

[0068] Therefore, a tilt adjustment unit may be formed to connect the tilt unit and the parallel light reflecting unit so that the angle of the parallel light reflecting unit can be kept consistent with the angle at which the parallel light is transmitted to the transmission unit according to the sliding of the tilt unit. The tilt adjustment unit may be formed to ensure that the acute angle formed by the first arm structure and the parallel light reflecting unit matches the acute angle formed by the parallel light reflecting unit and the second arm structure, regardless of the angle adjustment caused by the tilting movement.

[0069] In the present invention, the tilt adjustment unit may have a structure that connects at least one of the tilt unit and the light focusing unit to the slide bar of the parallel light reflecting unit through a hinge structure. In this way, when the angles of the tilt unit and the light focusing unit are adjusted, the slide bar of the parallel light reflecting unit will also slide to adjust the angle of the parallel light reflector so that the parallel light can be evenly transmitted to the transmission unit.

[0070] Figure 8 The connection structure of the tilting unit and the parallel light reflecting unit in the embodiment of the present invention is shown. Figure 8The parallel light reflecting unit (300) may include: a parallel light reflector (310) connected to the tilting unit (200) via a hinge structure and reflecting high-density parallel light to the transmission unit (500); and a sliding rod (330) connected to two extension rods (320) extending in parallel from the top of the parallel light reflector (310) and slidably connected along the two extension rods (320).

[0071] In an exemplary embodiment of the present invention, the tilt adjustment unit (250) can be designed to connect the sliding rod (330), the first arm structure (210) and the second arm structure (220) to the tilt adjustment unit (250) at different points, and make the straight rod passing through the connection point on the sliding rod (330) and the first arm structure (210) and the straight rod passing through the connection point on the sliding rod (330) and the second arm structure (220) intersect at the connection point on the sliding rod (330) and are connected by a hinge structure.

[0072] In a preferred embodiment of the present invention, the tilt adjustment unit (250) can be designed to connect the slide bar (330), the first arm structure (210), and the second arm structure (220) to the tilt adjustment unit (250) at different points, and make the straight rod passing through the connection points on the slide bar (330) and the first arm structure (210) intersect with the straight rod passing through the connection point on the second arm structure (220) and connect through a hinge structure. Here, the imaginary fixed point positioned toward the sliding frame unit (400) forms an imaginary rectangle with the tilt adjustment unit (250), and moves downward following the tilting movement. The advantage of this structure is that the sliding distance is increased, thereby achieving precise control.

[0073] In the present invention, the tilt adjustment unit (250) may have a structure in which two parallel rod structures intersect each other.

[0074] Specifically, the two parallel rod structures can be divided into a first parallel rod structure (251) and a second parallel rod structure (252), and the first parallel rod structure (251) and the second parallel rod structure (252) can be connected by a hinge structure at the intersection (c, c') where their ends intersect.

[0075] In the present invention, each parallel rod of the first parallel rod structure (251) may have three connection points, and the sliding rod (330) of the parallel light reflecting unit (300), the first arm structure (210) and the intersection (c) of the parallel rods are connected at each connection point. Specifically, one of the rods of the first parallel rod structure (251) may be connected to connect one end (330a) of the sliding rod (330), one edge (211a) of the sliding arm (211) of the first arm structure and the intersection (c) of the parallel rods into a straight line, and another rod parallel to the above-mentioned rod may be connected to connect the symmetrical points on the opposite sides.

[0076] In the present invention, each parallel rod of the second parallel rod structure (252) may have two connection points, and the connection points may connect the second arm structure (220) and the intersection point (c) of the parallel rods. Specifically, one rod of the second parallel rod structure (252) may be connected to connect one side (221a) of the sliding arm (221) of the second arm structure (220) and the intersection point (c) of the parallel rods to form a straight line, and another rod parallel to the above rod may be connected to connect the symmetrical points on the opposite side.

[0077] FIG. 9 shows the changes of the light focusing unit and the parallel light reflecting unit and the changes of the movement of the tilting unit caused by the sliding of the tilting unit.

[0078] In the structure of the present invention, when the second arm structure (220) of the tilting unit (200) slides along the sliding frame unit (400), the first arm structure (210) slides along the tilting unit connecting device (113) of the focusing unit (100), and the sliding rod (330) of the parallel light reflecting unit (300) slides along the extension rod (320). Thus, the angles of the focusing unit (100), the tilting unit (200) and the parallel light reflector (310) are organically adjusted so that they can be consistent with the angle at which the parallel light is transmitted to the transmission unit (500).

[0079] Specifically, FIG. 9 (a) shows a state diagram of the light focusing unit (100) tilted at 0°, and (b) and (c) show state diagrams of the light focusing unit tilted at 50° and 80°, respectively. Referring to FIG. 9 , it can be seen that when the tilting unit (200) makes a sliding motion and the light focusing unit (100) makes a tilting motion, the tilting adjustment unit (250) causes the sliding rod (330) to slide along the extension rod (320), thereby also changing the angle of the parallel light reflector (310). This structural design ensures that the acute angle formed by the parallel light transmitted from the light focusing unit (100) to the parallel light reflector (310) and the parallel light reflector (310) matches the acute angle formed by the parallel light reflector (310) and the sliding frame unit (400). Therefore, even if the tilting motion of the light focusing unit (100) changes the direction of the high-density parallel light, the light can be transmitted to the transmission unit (500) at a uniform angle.

[0080] The solar light concentrating device of the present invention comprises a sliding frame unit (400) to which a tilting unit (200) can be slidably attached. The sliding frame unit serves as an attachment frame to enable a sliding arm (221) of a second arm structure (220) of the tilting unit (200) to slide, and may comprise two parallel frame lines and be fixed to form a certain angle with a bottom surface.

[0081] In the present invention, in order to prevent collision with the focusing unit (100), the sliding frame unit (400) can be designed to form an angle of 40 to 60 degrees with the bottom surface, preferably an angle of 45 to 55 degrees. The frame line can be in the shape of a rod or a track. Considering that it can withstand a large amount of sliding and is low in cost, the rod shape is preferably used.

[0082] The solar light concentrating device of the present invention comprises a transmission unit (500) for receiving and transmitting light reflected by a parallel light reflecting unit (300). The transmission unit (500) reflects the light reflected by the parallel light reflecting unit (300) inside and transmits it to the outside, and can serve as a support for a device for fixing a sliding frame unit (400).

[0083] Here, the external area to which the sunlight is transmitted can be a place where sunlight is needed, such as the interior of a building, a basement, or an indoor greenhouse. Therefore, the sunlight concentrating device of the present invention can be used as an indoor or underground lamp or a growth lamp.

[0084] One end of the transmission unit (500) can be fixed to the outside of the sliding frame unit (400) and have a closed path inside to allow light to propagate while minimizing its loss. The inside of the transmission unit (500) is preferably treated with a metal mirror.

[0085] FIG. 10 shows a cross-sectional view of a transmission unit according to an embodiment of the present invention, in which a sliding frame unit is fixed.

[0086] Referring to Fig. 10(a), the frame wires of the sliding frame unit (400) are fixed on both sides of the outer surface of the transmission unit (500). The transmission unit (500) may include: a light entry path (510) for receiving light reflected by the parallel light reflector (310); a transmission path for transmitting the received light (520); and an output path (530) for outputting the transmitted light.

[0087] In addition, the transmission unit (500) may include one or more reflectors inside for guiding the path of the light reflected by the parallel light reflector (310) to the output direction. Figures 10 (b) and (c) show cross-sectional perspective views of the transmission unit, and the transmission unit (500) may include a first internal reflector (540) inside, which reflects the light received via the light inlet path (510) to the transmission path (520); a second internal reflector (550) which reflects the light reflected by the first internal reflector (540) to the output path (530), and another reflector may be included according to the structural needs of the geographical or connection location.

[0088] In the present invention, the sunlight concentrating device can rotate clockwise or counterclockwise with the diameter of the incident light reflecting surface perpendicular to the bottom surface of the device as the central axis. According to the rotational movement, the concentrating unit can be designed to respond to changes in the position of the sun. Therefore, the sunlight concentrating device of the present invention uses the tilting movement of the concentrating unit and the rotational movement of the device to track all changes in the altitude angle and position of the sun, thereby showing high light concentrating efficiency. In order to prevent the rotational movement from affecting the output direction of the concentrated sunlight, the central axis of the rotation of the device can be designed to match the central axis of the output path.

[0089] In the present invention, the solar light concentrating device may further include a driving unit for driving the device. The driving unit enables the concentrating device to operate according to the change of the height and position of the sun, and to track the sunlight according to the characteristics of the sun so as to move a certain distance in a certain time.

[0090] Fig.11 An exemplary structure of a solar light concentrating device including a driving unit is shown. Fig.11 The driving unit (600) may include a gear (611) that performs a tilting movement in response to a change in the solar altitude angle and a motor (612) including a tilting module (610).

[0091] In the tilt module (610), the motor (612) can be connected to the gear (611) to provide power for the tilting movement, and the power provided by the gear (611) can make the motor (612) run to generate the tilting movement. Here, the gear (611) of the tilt module (610) can be a worm gear including a worm wheel and a worm, and a transmission device for precise control can be placed between the tilt module (610) and the gear (611). Specifically, the worm wheel can be installed behind the incident light reflector (100b) of the focusing unit (100), and the axial rotation of the worm can drive the worm wheel to run to generate the tilting movement.

[0092] In addition, the driving unit (600) may further include a gear (621) for performing a rotational motion in response to a change in the position of the sun, and a rotation module (620) including a motor (622).

[0093] In the rotating module (620), the motor (622) can be connected to the gear (621) to provide power for the rotational motion, and the power provided by the motor (622) can make the gear (621) run to generate the rotational motion. A transmission device for precise control can be provided between the gear (621) and the motor (622). Here, the gear (621) of the rotating module can be located on the bottom surface of the transmission unit (500) and installed in the form of surrounding the output path (530).

[0094] In one embodiment of the present invention, the operating error of the driving unit (600) can be controlled by the signal of the optical sensor (130) of the focusing unit (100). This can ensure that the incident light on the incident surface of the focusing unit is always direct sunlight, thereby improving the sunlight focusing efficiency.

[0095] In one embodiment of the present invention, the solar concentrating device may further include an inner frame unit.

[0096] Fig.12 An exemplary structure of a solar light concentrating device including an inner frame unit is shown. Fig.12 , the inner frame unit (700) may include an upper frame (710) supporting an upper portion of the device and a lower frame (720) supporting a lower portion of the device.

[0097] In the present invention, the upper frame (710) may have a form connected to both ends of the inclined central axis of the incident light reflector (110) and cover the lower surface of the incident light reflector (110), and the lower frame (720) may have a form surrounding the lower member of the device.

[0098] In one embodiment of the present invention, Fig.13 As shown, the gear (621) of the rotating module may be formed on the lower surface of the lower frame (720).

[0099] In one embodiment of the present invention, the solar light concentrating device may further include a protective frame unit to protect the device from the external environment.

[0100] Fig.14 The structure of the protection frame unit is shown. The protection frame unit (800) may include a spherical transparent shell (810) surrounding the upper part of the device and a support frame (820) supporting the transparent shell (810) and surrounding the lower part of the device.

[0101] The transparent housing (810) can be made of a highly transparent material, such as glass, so that it can protect the light-collecting unit (100) without interfering with the incidence of sunlight. In the present invention, since the tilting movement of the light-collecting unit (100) requires only a small surface area, the device can be reduced to a compact size even if the transparent housing (810) is attached to the device.

[0102] The support frame (820) is used to fix and support the entire device, and the components of the electronic device can be installed at the lower part of the device and located inside the support frame. Here, the support frame (820) can be designed to release heat from the inside to the outside and realize internal temperature control and air circulation.

[0103] In one embodiment of the present invention, the solar light concentrating device may further include a cleaning unit that is rotatably attached to the outside of the transparent housing (810) to clean the transparent housing. The cleaning unit enables the device to thoroughly and automatically clean the transparent housing without the need for an additional cleaning process, thereby maintaining high sunlight incident efficiency.

[0104] Fig.15 A perspective view of a structure is shown in which a cleaning unit is mounted on a transparent housing of a protective frame unit. Accordingly, the cleaning unit (900) may include a rotating cleaning device (910) rotatable along the outer surface of the transparent housing (810) and a hinge (920) formed on a rotating shaft of the rotating cleaning device (910), and may also include a connecting frame (930) connecting the hinge (920) of the cleaning unit to the supporting frame (820).

[0105] In the present invention, the rotating cleaning device (910) may include one or more of a brush and an elastic wiper. In one embodiment, the rotating cleaning device (910) may have a structure in which the brush is located in the center and each side of the brush has an elastic scraper. Therefore, the rotating cleaning device (910) can rotate closely along the outer peripheral surface of the transparent shell (810) to perform thorough cleaning, and physical damage to the transparent shell (810) can be minimized.

[0106] In the present invention, the cleaning unit (900) may include a cleaning module that allows the rotating cleaning device (910) to rotate along the transparent housing (810), and an auxiliary cleaning module that allows the rotating cleaning device (910) to automatically rotate to improve its cleaning efficiency.

[0107] Fig.16 A structure is shown in which a cleaning module and an auxiliary cleaning module are installed in a hinge of a cleaning unit.

[0108] Reference Fig.16 The hinge (920) of the cleaning unit may include a hinge rotating frame (922) connecting a hinge center frame (921), a rotating cleaning device (910) and a cleaning unit hinge (920), and a gear unit (923) located inside the hinge rotating frame (922). The gear unit includes 8 spur gears located at the lower part of the hinge rotating frame (922) and 24 bevel gears located on the 8 spur gears and operating in linkage with the 8 spur gears. The 24 bevel gears are also provided with a cleaning module gear (924) operating in linkage with the 24 bevel gears and an auxiliary cleaning module gear (925) operating in linkage with the 24 bevel gears.

[0109] In this structure, the cleaning module gear (924) can be connected to the motor through a wire rope, and the auxiliary cleaning module gear (925) can be connected to the rotating cleaning device (910) through a wire rope. Here, a hole can be formed on the frame covering the upper part of the hinge so that the cable connected to the rotating cleaning device (910) can rotate.

[0110] FIG. 17 shows a front perspective view (a) and a rear perspective view (b) of a solar concentrating device according to an exemplary embodiment of the present invention.

[0111] Referring to FIG. 17 , the solar light concentrating device of an embodiment of the present invention may include a concentrating unit, a tilting unit, a parallel light reflecting unit, a sliding frame unit, a transmission unit, a driving unit, an inner frame unit, a protective frame unit, and a cleaning unit. Since the solar light concentrating device of the present invention can achieve efficient concentrating, and the surface area required for the tilting movement of the concentrating unit is very small, the device can be lightweight and miniaturized, and the manufacturing and maintenance costs are low, which has economic advantages. In addition, in the present invention, the installation of a protective frame unit to protect the entire device will not have a significant impact on the size of the device, and a high concentration efficiency can be maintained by installing a rotatable cleaning unit in a transparent shell for automatic cleaning. In addition, since the device does not require an additional cleaning process and does not require an operator to go to the roof, it is very convenient to operate.

[0112] Although specific parts of the present invention have been described in detail, it is obvious to those skilled in the art that these detailed descriptions are only preferred embodiments and do not limit the scope of the present invention. Therefore, the true scope of the present invention should be defined by the appended claims and their equivalents.

Claims

1. A solar light concentrating device, comprising: A light collecting unit, used for collecting sunlight, converting it into parallel light, and transmitting the parallel light to the parallel light reflecting unit; A tilting unit, comprising two arm structures for adjusting the angle of the focusing unit, the two arm structures being connected to each other via a hinge; A parallel light reflecting unit is connected to the tilting unit through a hinge, and reflects the parallel light transmitted by the focusing unit to the transmission unit; a sliding frame unit to which the tilting unit is slidably attached; A transmission unit, on which one end of the sliding frame unit is fixed, and transmits the parallel light reflected by the parallel light reflection unit to the outside to output sunlight; The tilt adjustment unit is connected to the tilt unit and the parallel light reflection unit, and the angle of the parallel light reflection unit is kept consistent with the angle of the parallel light transmission unit according to the sliding of the tilt unit; in The tilting unit is located at the rear of the focusing unit and includes a first arm structure slidably attached to the focusing unit; a second arm structure slidably attached to the sliding frame unit; The angle of the focusing unit is adjusted by sliding in accordance with the sliding frame unit of the tilting unit. Parallel light reflection unit The invention comprises: a parallel light reflector connected to the tilting unit through a hinge structure and reflecting the parallel light to the transmission unit; two extension rods extending in parallel from one end of the parallel light reflector; a sliding rod slidably connected along the two extension rods, Tilt adjustment unit At least one of the tilting unit or the focusing unit is connected to the slide bar through a hinge structure, thereby ensuring that the angle of the parallel light reflecting unit is consistent with the angle of the parallel light transmitting unit.

2. The solar concentrating device according to claim 1, wherein Concentrating unit having a through hole formed in the center and including an incident light reflector including a first parabolic mirror to collect sunlight; The light-collecting reflector, a mirror positioned to face the incident light reflector, includes a second parabolic mirror for reflecting the light collected by the incident light reflector toward the through hole to transmit the parallel light to the parallel light reflecting unit.

3. The solar concentrating device according to claim 2, wherein Concentrating unit Also included is a reflector connection device that connects the incident light reflector and the focusing reflector; A tilting unit connection device is formed at the rear of the incident light reflector, and the first arm structure is slidably attached to the tilting unit connection device.

4. The solar concentrating device according to claim 1, wherein The light collecting device also includes an optical sensor for detecting sunlight.

5. The solar concentrating device according to claim 1, wherein Transmission unit One or more reflectors are included to transmit the light reflected by the parallel light reflecting unit to the output direction.

6. The solar concentrating device according to claim 1, wherein The device includes a drive unit for tilting movement in response to changes in the altitude of the sun and for rotating movement in response to changes in the position of the sun.

7. The solar concentrating device according to claim 1, wherein The device also includes a protection frame unit, which includes a transparent shell surrounding the upper part of the device; and a supporting frame, which supports the transparent shell and surrounds the lower part of the device.

8. The solar concentrating device according to claim 7, wherein The device is rotatably mounted on the outside of the transparent shell and also includes a cleaning unit for cleaning the transparent shell.

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