KR100936491B1 - Solar lighting block - Google Patents

Abstract

PURPOSE: A solar block is provided to improve heat resistance, shock resistance, and durability by supporting a gap between a transparent cover and a main body using a support body. CONSTITUTION: A solar block(100) comprises a transparent cover(110), a main body(120), a support body, a solar battery cell, a circuit board, a rechargeable battery, a light emitting diode, a light guide plate, and a transparent silicone gel. The support body supports a gap between the transparent cover and the main body. The solar battery cell is accepted in a rectangular assembly groove of the transparent cover. The rechargeable battery and the light emitting diode are assembled on the circuit board. The light guide plate emits the light from the light emitting diode to the front surface of the transparent cover. A housing space formed by the transparent cover and the main body is filled with the transparent silicone gel.

Description

Solar Lighting block

The present invention relates to a solar lighting block, and more particularly, to a solar lighting block excellent in durability, impact resistance and heat resistance.

In general, solar lighting blocks or solar lighting tiles are installed on the outer wall of a road or a building for lighting at night.

The solar lighting block installs solar cells, batteries and light emitting diodes inside the transparent upper surface of the block to charge the solar energy from the solar cells to the battery during the day and to illuminate the surroundings by lighting the light emitting diodes with the charged energy at night. .

Such a solar lighting block needs a storage space for accommodating solar cells, batteries, circuit boards, and light emitting diodes therein.

Therefore, blocks installed on the road are required to have sufficient mechanical strength, especially to withstand external shocks, because they are subjected to the load of large trucks that run on the road. In particular, when the area of the solar lighting block is enlarged, the inner storage space becomes wider, and thus the mechanical strength is weakened. Therefore, it is difficult to manufacture a solar lighting block of a large size in the related art.

In addition, since solar lighting blocks are mainly installed on exterior walls of roads or buildings that are well-sunned to receive sunlight, response technologies for shock or temperature difference are required.

Therefore, the temperature inside the block rises very high as it is exposed to hot solar heat in the middle of the day, and the cold temperature is exposed as it is at dawn. In addition, when the temperature difference between midsummer and winter is severe, there is a concern that the life of the internal electronic components will be further shortened.

Therefore, solar lighting blocks that do not have sufficient protection against impact or heat resistance have a problem in that moisture is penetrated inside the block when the block is broken or cracks, and internal electronic components are corroded or malfunction due to shortened life.

In addition, since solar lighting blocks are normally sealed to block outside air, solar cells are charged even under fluorescent light and are automatically operated when the light is obscured by packaging. Thus, unnecessary charging and discharging by lighting operation occur. However, in the sealed state, the switching operation could not be blocked from the outside. Unnecessary battery charging and discharging is a cause of shortening the battery life.

An object of the present invention for solving the above problems is to provide a solar lighting module with improved durability, impact resistance and heat resistance.

Another object of the present invention is to provide a solar lighting apparatus that can be used without a long-term failure.

Another object of the present invention to provide a large size solar lighting apparatus.

It is still another object of the present invention to provide a solar lighting block that can be easily set outside the sealed block to prevent unnecessary operation to extend the life of the battery and facilitate product management.

The solar lighting block of the present invention for achieving the above object is a rectangular transparent cover formed with a square assembly groove in which each corner is inscribed on each side of the inner surface, the main body to form a storage space in combination with the transparent cover, It is accommodated in the storage space so that the rectangular top plate is inserted into the rectangular assembly groove, the support having vertical support pillars protruding downward from the top plate to support between the transparent cover and the main body, and the space between the top plate of the support and the rectangular assembly groove of the transparent cover. Photovoltaic cells mounted on the solar cells and connected in series, a circuit board mounted on the lower surface of the upper plate of the support, a rechargeable battery assembled on the circuit board, and light emitting diodes which are assembled to four sides of the circuit board and emit light to the side And spaces defined by the sides of the circuit board and the inner wall of the transparent cover, respectively, and exit from the light emitting diode through one side wall. Triangular light guide plates for entering the emitted light to the front of the transparent cover, and a transparent silicone gel filled in the storage space formed by the transparent cover and the main body.

In the circuit board of the present invention, a control circuit part is formed, and the control circuit part includes a charging circuit part for charging the battery with electrical energy generated in a solar cell, a driving circuit part for driving the light emitting diodes at a voltage charged in the battery, and solar electric power. Day and night discrimination unit coupled to the output terminal of the cell to discriminate day and night to block the operation of the driving circuit unit during the day to turn off the light emitting diodes, and to operate the driving circuit unit at night to turn on the light emitting diodes, and on the power path of the driving circuit unit It is connected and is switched off when the permanent magnet is approached from the outside and is switched on when the permanent magnet is removed, and includes a proximity switch for switching the power supply of the driving circuit portion.

Solar lighting block according to an embodiment of the present invention is excellent between the transparent cover and the main body is supported by the support and the external shock is absorbed by the filled transparent silicone gel has excellent durability, impact resistance and heat resistance.

Hereinafter, a method of manufacturing a semiconductor device in accordance with embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the following embodiments, and has ordinary skill in the art. It will be apparent to those skilled in the art that the present invention may be embodied in various other forms without departing from the spirit of the invention.

1 shows an external perspective view of a solar lighting block according to the present invention.

Referring to the drawings, the solar lighting block 100 has a box shape having a size of 200mm × 200mm in which the rectangular transparent cover 110 and the main body 120 are combined.

Solar cells are installed in a 10 mm × 10 mm square area 102 in which corners are inscribed at each side of the front side of the transparent cover 110, and an isosceles triangular light guide plate is disposed in the isosceles triangular areas 104 around the front surface. Are installed respectively.

A plurality of convex protrusions 106 are formed on the outer surface of the rectangular area 102. The convex protrusions 106 serve as a convex lens for concentrating sunlight into the solar cell while being provided as an anti-slip protrusion to prevent pedestrians from slipping when installed on the road as a sidewalk block.

On the outer surface of the triangular region 104 is formed projection lines 108 parallel to the diagonal direction. Similarly, the projection lines 108 may be provided as anti-slip projections so that pedestrians do not slip, while refracting light emitted from the front side of the lower light guide plate to spread in a horizontal direction so that they can be seen brightly from a distance.

Such arrangement of the solar cells, the convex protrusions 106 and the protrusion line 108 is aesthetically harmonized to make the appearance of the solar lighting block beautiful.

2 is an exploded perspective view of a solar lighting block according to the present invention, Figure 3 is a cross-sectional view taken along line AA of Figure 1, Figure 4 is a perspective view of the bottom of the main body of the solar lighting block 100 according to the present invention, 5 is a partial cross-sectional view showing a state in which the solar lighting block of the present invention is installed on the ground.

Referring to the drawings, the solar lighting block 100 includes a support 130, a solar cell 140, a circuit board 150, and a rechargeable battery in an inner storage space formed by a combination of the transparent cover 110 and the main body 120. 160, a light emitting diode 170, a light guide plate 180, a proximity switch 190, and a transparent silicon gel 195.

The inner front surface of the transparent cover 110 has a rectangular assembly groove or groove 112 for accommodating the solar cell 140 is formed corresponding to the rectangular region 102. A locking jaw 114 is formed at the edge of the groove 112. A locking jaw 116 is formed at an inner side of the lower sidewall of the transparent cover 110.

The main body 120 is formed of a rigid opaque plastic injection molding in a quadrangular shape, and a base jaw 121 is formed outside the upper end of the side wall. The base jaw 121 supports the lower end of the side wall of the transparent cover 110 and the main body 120. The upper end of the side wall is caught by the locking projection 116 of the transparent cover 110 and the side walls are engaged with each other. The upper surface of the main body 120 is formed with a rectangular protrusion 122 in which corners are inscribed on each side, and the support jaw 123 is formed inside the upper end of the rectangular protrusion 122. Reinforcing ribs 124 are formed along the diagonal of the inner region surrounded by the rectangular protrusion 122, and a recess 125 is formed at the center where the reinforcing ribs 124 intersect. Support protrusions 126 are formed in each isosceles triangular region surrounded by sidewalls of the main body 120 and the rectangular protrusion 122. The height of the support protrusion 126 is the same as the height of the side wall of the body 120. Reinforcing ribs 127 protruding along a diagonal line are formed on the bottom of the main body 120 and are divided by 45 degrees near a corner to define a rectangular area at a corner. Coupling grooves 128 are formed at positions corresponding to the central axis of the base protrusion 126 on the upper corner rectangular region of the bottom of the main body. The coupling piece 200 is coupled by the coupling screw 210 to the corner rectangular region where the coupling groove 128 is formed. The coupling screw 210 is mounted in the coupling groove 128. The coupling piece 200 is formed in an arrowhead shape with a metal plate such as steel or aluminum, and coupling holes 202 and 204 are formed. The coupling screw 210 is inserted into the coupling hole 202, and the anchor bolt 220 is inserted into the coupling hole 204. Anchor bolt 220 is fixed by driving into the ground. In addition, a permanent magnet mounting groove 129 is formed on the bottom of the main body to mount the permanent magnet 198.

The support 130 is composed of a rectangular top plate 131 and support pillars 132 and 133 protruding downward from the bottom of the top plate 131. The support pillar 132 is positioned at the center of the upper plate 131 and the lower end is inserted into the groove 125 located at the center of the main body 120 to support the central portion of the upper plate 131. The support pillar 133 is located at each corner of the upper plate and the lower end thereof is supported by the supporting jaw 123 of the rectangular protrusion 122 of the main body 120. The support pillar 133 is integrally formed with wings 134 extending along both sides from the edge. Positive and negative lead wire through holes 135 are formed near one side of the upper plate 131.

The solar cell 140 is bonded to the top plate 131 through a double-sided tape or the like, and the positive lead wire 141 and the negative lead wire 142 are drawn out to the bottom surface of the top plate 131 through the through hole 135. The solar cell 140 adhered to the upper plate 131 is received in the recess 112 of the transparent cover 110.

In the circuit board 150, the positive lead wire 141 and the negative lead wire 142 drawn out to the bottom surface are soldered to the solar cell connection terminal 151. The rechargeable battery 160 is mounted on the bottom surface of the circuit board 150. Light emitting diodes 170 are assembled to each side of the circuit board 150. Two sets of light emitting diodes may be assembled to each side of the circuit board 150. Each group is composed of three color LEDs of red, green, and blue to generate various color lights. In the case of monochromatic lighting, only one of the three color LEDs is assembled. A through hole 152 is formed in the center of the circuit board 150 so that the center support pillar 132 of the support 130 is inserted into the bottom surface of the upper plate 131.

Light emitted from the light emitting diodes 170 is incident on the side surface of the light guide plate 180 formed by an isosceles triangle. The reflective pattern 181 is printed on the bottom surface of the light guide plate 180, and the reflective sheet 182 is attached. The diffusion sheet 183 is attached to the upper surface of the light guide plate 180. The side wall of the light guide plate 180 is surrounded by the reflective sheet 184 except for a portion in which the light guide plate 170 is in contact with the light emitting diode 170 to prevent light from leaking in the horizontal direction. Therefore, the light guide plate 180 guides the light incident through the sidewall to the upper surface and emits the light. The light guide plate 180 is supported by a bottom portion at the top of the rectangular protrusion 122 and is supported by a portion near the vertex angle by the support protrusion 126.

The proximity switch 190 is connected to the circuit board 150 via a cable 192 and is bonded to the bottom surface corresponding to the permanent magnet mounting groove 129 formed on the bottom surface of the main body 130. Therefore, the proximity switch 190 maintains the switch-off state by the magnetic force of the permanent magnet provided from the bottom of the main body. When the permanent magnet is removed, the magnetic influence is removed, so the proximity switch 190 is returned to the switched on state.

After the above-described components are assembled to the transparent cover 110 and the proximity switch 190 is attached to the main body 120, the transparent silicone gel 195 is filled in the transparent cover 110. After the transparent silicone gel 195 is filled, the main body 120 and the transparent cover 110 are assembled, and the joint is sealed with adhesive tape to complete the assembly. The transparent silicone gel 195 is a primerless silicone gel under the trade name SAG 7124 of Sylmore, which has low viscosity, soft curing, impact resistance and vibration resistance, and has stable heat resistance characteristics that do not change even in a wide temperature range of about -50 to 150 degrees. Has Therefore, the transparent silicone gel 195 fills the inside of the block to protect the internal parts from external mechanical shocks or vibrations, thereby preventing damage to the parts, and completely blocks external shock or moisture. In addition, the heat resistance is excellent to reduce and alleviate thermal stress due to temperature changes, and to satisfy the optical coupling between the light emitting diode and the light guide plate at the same time to minimize the light transmission loss. In addition, since the silicone gel is filled between the parts to adhere the parts, the gel can be prevented from shaking by vibration or the like.

FIG. 6 shows a circuit configuration of a control circuit formed on the circuit board of FIG. 2.

Referring to the drawings, the control circuit includes a diode D1, a zener diode ZD1, transistors Q1 and Q2, and resistors R1 to R9. The negative lead wire 142 of the solar cell 140 is connected to the ground line, and the positive lead wire 141 is connected to the positive terminal of the battery 160 through the backflow prevention diode D1. The negative terminal of the battery 160 is connected to the ground line. In addition, the positive lead wire 141 is connected to the base of the transistor Q1 through the zener diode ZD1 and the resistor R9. A resistor R8 and a capacitor C1 are respectively connected to the base of the transistor Q1. The emitter of transistor Q1 is connected to the ground line and the collector is connected to battery 160 plus terminal through resistor R1. The collector is also connected to the base of transistor Q1 via resistor R7. The emitter of transistor Q1 is connected to the ground line through proximity switch 190. The collector of transistor Q1 is connected to the plus terminal of battery 160 via light emitting diode 170. The plurality of light emitting diodes 170 are connected in series with the corresponding resistors R2 to R5, respectively, and the series connection of the light emitting diodes and the resistors are connected in parallel with each other. Here, the transistor Q1 constitutes a driving circuit portion, and the transistor Q2 and the zener diode ZD1 constitute a day and night discrimination portion.

The control circuit configured as described above charges the battery 160 with electrical energy generated in the solar cell 140. In addition, when the output voltage level of the Taeyoung battery cell 140 increases above the zener voltage of the zener diode ZD1, that is, when the daytime illumination is detected, the transistor Q2 is turned on to turn off the transistor Q1. Therefore, the light emitting diode is turned off in daytime illumination. On the contrary, when the output voltage level of the Taeyoung battery cell 140 falls below the Zener voltage of the Zener diode ZD1, that is, when night illumination is detected, the transistor Q2 is turned off and the transistor Q1 is turned on. Therefore, the LED is turned on at night illumination. When the proximity switch 190 is turned off at night illumination, the light emitting diode 170 may not be turned on. That is, it remains off regardless of the change in the ambient illuminance. When the permanent magnet 198 is removed, the proximity switch 190 is maintained in an on state, so that the light-emitting control of the light emitting diode 170 can be controlled in response to the ambient illumination.

Therefore, since the control circuit is charged even under fluorescent lighting, the operation of the control circuit may be set by on / off operation of the proximity switch 190 in order to block the light emitting diode from turning on and off in response to changes in illuminance during storage, packaging, and transportation of the product. Can be.

FIG. 7 shows 2x2 assembled solar lighting blocks according to the present invention, and FIG. 8 shows 3x3 assembled solar lighting blocks.

Referring to the drawings can be combined in the desired size on the outer wall of the road or building, the solar lighting block 100 can be installed more beautifully through the combination, the beauty of the molding can look excellent.

According to the present invention, since the durability, impact resistance and heat resistance of the solar lighting block are improved, the lifespan is extended, thereby reducing maintenance costs.

In addition, it is possible to produce large solar light blocks or solar light tiles, which can maximize the night light effect of roads and buildings.

In addition, the built-in proximity switch can be set to turn on or off easily outside of the sealed solar lighting block, thereby extending the life of the battery by blocking unnecessary automatic operation.

Although described with reference to the embodiments above, those skilled in the art can variously modify and change the present invention without departing from the spirit and scope of the invention described in the claims below. You will understand.

1 shows an external perspective view of a solar lighting block according to the present invention.

2 is an exploded perspective view of a solar lighting block according to the present invention.

3 is a cross-sectional view taken along the line A-A of FIG.

4 is a perspective view of the bottom of the main body of the solar lighting block 100 according to the present invention.

Figure 5 is a partial cutaway cross-sectional view showing a state in which the solar lighting block of the present invention constructed on the ground.

FIG. 6 shows a circuit configuration of a control circuit formed on the circuit board of FIG. 2.

7 shows 2 × 2 assembled solar lighting blocks according to the invention, and FIG. 8 shows 3 × 3 assembled solar lighting blocks.

Claims (2)

A rectangular transparent cover 110 having a square assembly groove 112 formed at corners of the inner sides of the inner surfaces thereof; A main body 120 coupled to the transparent cover 110 to form an accommodation space therein; Between the rectangular assembly groove to be rectangular top plate 131 is inserted in the 112 is received in the receiving space, protrudes downward from the center and the four corners of the top plate 131. The transparent cover 110 and the body 120 A support 130 having a plurality of vertical support pillars 132 and 134 for supporting; Solar cells 140 are installed in a space between the top plate 131 of the support 130 and the square assembly groove 112 of the transparent cover . A circuit board 150 mounted on a bottom surface of the upper surface 131 of the support 130; A rechargeable battery 160 assembled to the circuit board 150; Light emitting diodes 170 disposed on each side of the circuit board 150 to emit light to the side; Each of the sides of the circuit board 150 and the spaces defined by the inner wall of the transparent cover 110 are respectively mounted, and the light emitted from the light emitting diodes 170 through one side of the light incident to the transparent cover 110 Triangular light guide plates 180 to be emitted to the triangular region 104 of the triangular light guide plate 180; And Solar lighting block comprising a transparent silicone gel (195) is filled in the storage space formed by the transparent cover 110 and the main body 120. The method of claim 1, wherein a control circuit portion is formed on the circuit board, The control circuit unit A charging circuit unit for charging the battery with electrical energy generated in the solar cell; A driving circuit unit driving the light emitting diodes at a voltage charged in the battery; A day and night discrimination unit coupled to an output terminal of the solar cell to discriminate day and night to block the operation of the driving circuit unit during the day so that the light emitting diodes are turned off and to operate the driving circuit unit at night so that the light emitting diodes are turned on; And Solar lighting, characterized in that it is connected to the power path of the drive circuit portion and is switched off when the permanent magnet is approached from the outside, and is switched on when the permanent magnet is removed, the proximity switch for switching the power supply of the drive circuit portion block.

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