KR101242241B1 - Solar Street lamp - Google Patents

Abstract

The present invention is a solar panel is mounted on the front surface and the back is formed of a light-transmitting material and is installed on the edge of the backing plate so that one end is unfolded or folded by the rotation axis and arranged along the edge of the backing plate; A motor connected to the rotation shaft of the power generation panel so that the power generation panel is unfolded or folded; A rechargeable battery storing power output from the power generation panel; Light emitting means for emitting light by power supplied through the rechargeable battery; A controller for controlling the motor and the light emitting means according to the illuminance measured by the optical sensor; It includes, and the upper end is provided with the power generation panel and the light emitting means, a plurality of unit pipes having different diameters are inserted and detached, the length of the post is made and stretched; A length adjusting unit which adjusts the total length of the posts by adjusting the elongation and expansion of the plurality of unit pipes; A fixing part for maintaining the length of the post by the length adjusting part in an adjusted state; It provides a solar street light including a guide for guiding the movement of the unit pipe when adjusting the length of the unit pipe.

Description

Solar street lamp {Solar Street lamp}

The present invention relates to a solar street light, and more particularly, to a solar street light that can be folded or unfold the power generation panel according to the ambient illumination, and the height can be adjusted to facilitate maintenance of the light emitting means and the solar cell.

Street lamps are installed in places such as highways, main roads in downtowns, commercial roads and residential roads, and illuminate the roads after sunset or during rainy weather.

Street lamps generally consist of a post and a luminaire attached to the top of the post. In addition, the street light has only a difference in shape, and has a predetermined length and a sufficient brightness so that the luminaire is installed at a predetermined height from the ground.

The street lamp uses the commercial power produced by the power plant as a power source. The lamp is illuminated by the operation by timers, central control, and sensors. Since street lamps consume a large amount of electricity, solar cells are installed in street lamps so that they can be charged with solar power during the day and can be charged using the charged power at night.

As described above, the solar cell is basically configured to be installed outdoors for smooth incidence and efficiency of sunlight. Due to the outdoor installation of the solar cell, the surface of the solar cell is accumulated by dust or rainwater, and thus the power generation efficiency is lowered.

In addition, since the lamp and the solar cell of the street lamp is installed at a predetermined height from the ground, there is a problem in that the maintenance speed of the lamp and the solar cell is delayed in operation according to the height. In addition, the workers are also exposed to the risk of falling because the work is made at a high place.

The present invention is to solve the above problems, by folding or unfolding the power generation panel according to the ambient light to provide a solar street light to prevent the surface of the solar cell is contaminated by dust and rain water to reduce the power generation efficiency For the purpose of

In addition, an object of the present invention is to provide a solar street light that facilitates maintenance work for the solar cell and the light emitting means installed on the upper part of the street light by changing the height of the lamp post of the street during maintenance work.

The present invention is a solar panel is mounted on the front surface and the back is formed of a light-transmitting material and a plurality of power generation panel is arranged along the edge of the support plate is installed so that one end is folded or folded by the rotation axis at the edge of the support plate; A motor connected to the rotation shaft of the power generation panel so that the power generation panel is unfolded or folded; A rechargeable battery storing power output from the power generation panel; Light emitting means for emitting light by power supplied through the rechargeable battery; A controller for controlling the motor and the light emitting means according to the illuminance measured by the optical sensor; It includes, and the upper end is provided with the power generation panel and the light emitting means, a plurality of unit pipes having different diameters are inserted and detached, the length of the post is made and stretched; A length adjusting unit which adjusts the total length of the posts by adjusting the elongation and expansion of the plurality of unit pipes; A fixing part for maintaining the length of the post by the length adjusting part in an adjusted state; It provides a solar street light including a guide for guiding the movement of the unit pipe when adjusting the length of the unit pipe.

The length adjusting part includes a plurality of pinion gears installed in parallel to the lowermost unit pipe among the plurality of unit pipes and interlocked in the same direction, and the remaining unit units except for the lowermost unit pipe among the plurality of unit pipes. A plurality of rack gears attached to a side surface parallel to the central axis of the unit pipe and engaged with the pinion gear, a handle connected to a rotation axis of the pinion gear of one of the plurality of pinion gears and rotating by a user's operation, It may include a transmission gear for transmitting the rotational force of the pinion gear connected to the handle to the neighboring pinion gear and a cover to isolate the pinion gear and the transmission gear from the outside.

The guide unit may include a guide groove formed parallel to a center axis of the plurality of unit pipes except for the uppermost unit pipe of the plurality of unit pipes and penetrating through the unit pipe, and the lowermost unit pipe of the plurality of unit pipes. Excluding the remaining one side of the unit pipe may be formed to include a guide protrusion is inserted into the guide groove past the unit pipe.

The guide groove and the guide protrusion may be formed in a 'T' shape.

The guide groove and the guide protrusion may be attached to the opposite side of the rack gear.

The fixing part is inserted into the fixing hole after the plurality of fixing holes formed in parallel to the central axis on each side of the unit pipe and the fixing holes of the unit pipe to each other to maintain the length adjustment state of the post It may include a fixed rod.

Fixing holes formed in the unit pipes may be formed at the same interval and diameter.

A street lamp which is turned on by measuring an external illuminance by an optical sensor, and illuminates when the illuminance is lower than a predetermined value. The controller controls the power generation panel to be folded by the motor when the illuminance measured by the optical sensor is lower than or equal to a set value. If the value is greater than or equal to, the motor can be controlled to unfold the power generation panel.

The present invention as described above has the effect of preventing the surface of the solar cell that supplies power to the various devices is contaminated by dust and rain water to reduce the power generation efficiency.

In addition, the present invention has an effect of facilitating the maintenance work for the solar cell and the light emitting means installed on the upper part of the street lamp by changing the height of the strut of the street lamp low during maintenance work.

1 is a perspective view showing the configuration of a solar street light according to an embodiment of the present invention.
2 is a perspective view showing in detail the configuration of the power generation panel and the light emitting means of the solar street lamp shown in FIG.
FIG. 3 is a perspective view illustrating an unfolded state of a power generation panel of the solar street lamp illustrated in FIG. 1.
4 is a perspective view showing in detail the unfolded state of the power generation panel of the solar street lamp shown in FIG.
FIG. 5 is a block diagram illustrating input and output of power and control signals included in the solar street lamp of FIG. 1.
FIG. 6 is a perspective view showing the structure of the posts of the solar street lamp shown in FIG. 1. FIG.
7 is a view showing an example of the configuration of the guide portion used in the present invention.
FIG. 8 is a cross-sectional view showing the configuration of a fixing part for fixing in the state of the post shown in FIG. 6. FIG.
9 and 10 are diagrams each showing an example of an operating state of the support shown in FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing the configuration of a solar street light according to an embodiment of the present invention, Figure 2 is a perspective view showing in detail the configuration of the power generation panel and the light emitting means of the solar street lamp shown in FIG.

3 is a perspective view illustrating an unfolded state of the power generation panel of the solar street light illustrated in FIG. 1, and FIG. 4 is a perspective view illustrating an unfolded state of the power generation panel of the solar street light illustrated in FIG. 3.

FIG. 5 is a block diagram illustrating input and output of power and control signals included in the solar street lamp of FIG. 1.

First, the solar street light 100 according to the present invention may be applied to a street lamp installed on both sides of a road through which vehicles or pedestrians pass.

 1 to 5, the solar street light 100 according to the embodiment of the present invention includes a support plate 10, a plurality of power generation panels 20, a motor 30, an optical sensor 40, and light emitting means. 50, the control unit 60, the strut 110, the length adjusting unit 120, the guide unit 130, and the fixing unit 140.

The supporting plate 10 is formed in a plate shape to facilitate installation of the power generation panel 20, the motor 30, and the like, which will be described later. The supporting plate 10 is horizontally installed at the upper end of the support 110 to be described later.

Support plate 10 is formed in a variety of forms according to the user's needs, such as round or square.

Along the edge of the support plate 10, a plurality of power generation panels 20 are installed and arranged by the rotation shaft. In the present embodiment, four power generation panels 20 are arranged, but the number of arrangements can be increased or decreased according to the needs of the user.

The front surface of the power generation panel 20 is formed in the form of a plate having a predetermined area is arranged a solar panel 22 for performing photovoltaic power generation to convert the solar light into electricity, the back is formed in the shape desired by the user do. Here, the power output from the solar panel 22 is supplied to the light emitting means 50 described later through the rechargeable battery 26 described later.

The power generating panels 20 arranged on the backing plate 10 are all formed in the same shape.

In the present embodiment, the rear surface of the power generation panel 20 is formed in a predetermined curved surface, and in a state in which the plurality of power generation panels 20 are all folded, they are formed in a bud shape as a whole, and the state in which the power generation panel 20 is expanded is a flower. It may be formed in the form of blooming, but is not limited to this may be formed in various forms according to the needs of the user.

The power generation panel 20 is configured to be unfolded or folded based on the rotation axis by the motor 30 to be described later. Unfolding and folding operations of the plurality of power generation panels 20 are performed at the same time.

In a state where all of the power generation panels 20 are folded, it is preferable that a space does not occur between the power generation panel 20 and the power generation panel 20 so that external moisture or dust does not penetrate. To this end, the side ends of the power generation panel 20 may be formed in close contact with each other. In order to facilitate close contact with the power generation panel 20, grooves are continuously formed along one end of the power generation panel 20, and protrusions inserted into the groove along the other end of the power generation panel 20 are continuously. Can be formed.

In addition, it is preferable that a waterproof packing is disposed along the side end of the power generation panel 20 to prevent penetration of moisture or dust. The material of the waterproof seal may include silicone or rubber.

The rechargeable battery 26 for storing the power generated by the power generation panel 20 is installed. The rechargeable battery 26 stores the power output from the solar panel 22 of the power generation panel 20, and discharges the stored power under the control of the controller 60, which will be described later, at night to emit light by the light emitting means 50 described later. Make it work.

Since the rechargeable battery 26 has a high load, the rechargeable battery 26 is preferably installed outside the solar street light 100, that is, on the ground. In the present embodiment, the rechargeable battery 26 includes a charging circuit for charging power and a discharge circuit for discharging the charged power. Here, since the charging circuit 26 and the charging circuit for charging power to the rechargeable battery 26 and the discharging circuit for discharging the charged power are well known technologies, detailed description thereof will be omitted.

The back of the power generation panel 20 is formed of a light transmissive material, so that the light emitted from the light emitting means 50 to be described later to facilitate the irradiation.

At this time, the rear cover 24 of the power generation panel 20 is formed of a light transmissive material such as a transparent material such as translucent plastic or glass, acrylic, polycarbonate, and the like, and facilitates illumination by the light emitted from the light emitting means 50. Let's do it.

In the present invention, the light emitting means 50 is integrally installed in the power generation panel 20, but may be separately installed according to the needs of the user. In addition, when the light emitting means is installed separately from the power generation panel, the rear cover 24 may be formed of a non-transparent material.

The motor 30 may be connected to the rotation shaft of the power generation panel 20. The motor 30 is operated by the control of the control unit 60 to be described later to allow the power generation panel 20 to be unfolded or folded. The drive shaft of the motor 30 may be directly connected to the rotation shaft of the power generation panel 20, or may be connected using a separate link.

An optical sensor 40 is installed in the center of the support plate 10. The optical sensor 40 measures a peripheral illumination and outputs a signal corresponding to the measured illumination and inputs it to the controller 60 to be described later. The optical sensor 40 is formed in the shape of a circular panel having a predetermined area, but may be formed in other shapes.

In the state in which the plurality of power generating panels 20 are folded, the optical sensor 40 is positioned at the center of the upper side of the power generating panel 20. To this end, the optical sensor 40 is installed by a support rod 42 having a predetermined height. At this time, the length of the support rod 42 is formed higher than the height of the power generating panel 20 when the power generating panel 20 is folded.

 Therefore, the optical sensor 40 can always measure the illuminance around the street lamp 100 regardless of the state in which the power generation panel 20 is unfolded or folded. In addition, the optical sensor 40 located at the center of the upper end of the power generation panel 20 prevents rainwater from penetrating inward through the upper portion of the power generation panel 20 in rainy weather.

In addition, since the optical sensor 40 is located at the center of the upper side of the power generation panel 20, the overall appearance can be improved by forming a stamen of the flower in a state in which the power generation panel 20 is unfolded.

The power generation panel 20 is provided with light emitting means 50.

The light emitting means 50 emits light by the power supplied from the rechargeable battery 26. The light emitting means 50 is preferably installed in a direction toward the ground in a state in which the power generating panel 20 is all folded. When the solar street lamp 100 according to the present invention is applied to a street lamp, sodium or the like may be used as the light emitting means to increase visibility in weather conditions such as fog. In addition, an LED may be used as the light emitting means.

When the LED is used as the light emitting means 50, the light emitting operation can be performed by direct current power supplied from the rechargeable battery 26 after being directly connected to the rechargeable battery 26, but when sodium lamp is used as the light emitting means 50, A separate inverter circuit can be installed.

The light emitting means 50 is preferably installed between the rear cover 24 of the power generation panel 20 and the solar panel 22 to prevent contamination by foreign matter.

The controller 60 receives a signal output from the optical sensor 40, and outputs a motor control signal according to the illuminance around the street lamp 100. That is, if the value measured by the optical sensor 40 is more than a predetermined value (for example, 100 lux or more), it is determined that solar power is possible, and the motor 30 is controlled to operate in the direction in which the power generation panel 20 is unfolded. Output the signal. Here, the illuminance which is an operation reference of the power generation panel 20 is preset by the user.

In addition, when the value measured by the optical sensor 40 is equal to or less than a predetermined value (for example, 100 lux or less), it is determined that solar power generation by the solar panel 22 is impossible, and the control unit 60 generates the motor 30. The control signal is output to operate in the direction in which the panel 20 is folded.

The controller 60 controls the motor 30 according to the illuminance measured by the optical sensor 40, so that the power generation panel 20 is in a folded state at night as well as during rain or snow. That is, since the illumination around the street lamp 100 during the daytime when the sunlight shines is more than a set value (for example, 100 lux or more), solar power is possible, but even during the rainy day or during snowfall Since the sun is covered by the sun and the illumination around the street lamp 100 is not lower than the set value, the photovoltaic power generation is not performed. Thus, the controller 60 controls the motor 30 so that the power generation panel 20 is in a folded state.

When the power generation panel 20 is in a folded state during rain or snow, the surface of the solar panel 22 can be prevented from being contaminated by dust.

The strut 110 is installed at a specific place (for example, a roadside). The pillar 110 may be provided with the light emitting panel 20, the light emitting means 50, and components.

FIG. 6 is a perspective view showing the structure of the prop of the solar street lamp shown in FIG. 1. FIG. Referring to FIG. 6, the strut 100 includes a plurality of unit pipes.

The strut 110 is capable of stretching and stretching the length of the entire strut 110 by adjusting the unit pipe.

In the present embodiment, the unit pipe includes three, but the number of inclusions can be increased or decreased according to the needs of the user.

For convenience of description, it is assumed that there are three unit pipes, that is, the first, second and third unit pipes 112, 114, and 116.

The first to third unit pipes 112, 114, and 116 are formed to have the same length, and each diameter is formed to a size that can be inserted into each other. That is, the first unit pipe 112 has the largest diameter. The second unit pipe 114 may be inserted into the first unit pipe 112. To this end, the diameter of the outer circumferential surface of the second unit pipe 114 is formed to such an extent that it can be inserted into the inner circumferential surface of the first unit pipe 112. In addition, the third unit pipe 116 is formed to such an extent that the diameter of the outer circumferential surface may be inserted into the inner circumferential surface of the second unit pipe 114.

The supporting plate 10, the power generation panel 20, and the like are installed at the upper end of the third unit pipe 116.

One side of the first unit pipe 112 is provided with a length adjusting unit 120.

The length adjusting unit 120 may vary the overall height of the support 110 by adjusting the elongation and extension of the first to third unit pipes 112, 114, and 116 by a user's manipulation.

The length adjusting part 120 controls the handle 122, the first and second pinion gears 124a and 124b, the first and second rack gears 126a and 126b, and the first and second transmission gears 128a and 128b. Include.

The handle 122 may be rotated by the user. The handle 122 is formed in a straight rod shape, and one end of the handle 122 is connected to a rotation shaft of the first pinion gear 124a which will be described later. In this embodiment, the handle is in the form of a straight rod, but may be formed in various forms such as a circle according to the user's needs.

The first and second pinion gears 124a and 124b are rotated by the rotational force of the handle 122. The rotation operation of the first and second pinion gears 124a and 124b moves the first and second rack gears 126a and 126b described later in a straight line.

The first and second pinion gears 124a and 124b are formed with the same diameter and the same number of gears, and the specifications of the gear teeth are the same. The first and second pinion gears 124a and 124b are installed up and down on an upper side of the first unit pipe 112, and the rotation shafts are arranged in parallel with each other.

In addition, the first and second pinion gears 124a and 124b rotate together in the same direction. In order to interlock the first and second pinion gears 124a and 124b in the same direction, the first and second pinion gears 124a and 124b transmit rotational forces by the first and second transmission gears 128a and 128b. do.

In this embodiment, the first transmission gear 128a is installed by a separate rotation shaft to engage with the first pinion gear 124a, and the second transmission gear 128b meshes with the first transmission gear 128a. It is provided coaxially with the 2nd pinion gear 124b. In order to facilitate the rotational force transmission, the shape and shape of the gears of the first and second transmission gears 128a and 128b are preferably the same as those of the first and second pinion gears 124a and 124b.

The first and second pinion gears 124a and 124b may be interlocked by the first and second transmission gears 128a and 128b.

In the present embodiment, two transmission gears are used to transmit the rotational force between the pinion gears, but a single transmission gear having a width corresponding to the separation distance between the pinion gears is disposed between the pinion gears, and the first and the first gears at both ends of the transmission gears. The two pinion gears 124a and 124b can be arranged to engage.

The first and second rack gears 126a and 126b are installed on the outer circumferential surfaces of the second and third unit pipes 114 and 116, respectively, except for the first unit pipe 112 located at the bottom thereof.

The first and second rack gears 126a, 126b are installed parallel to the central axis of the unit pipe, but are not located on the same line. However, it is preferable that the first and second rack gears 126a and 126b are installed in close contact with the side surfaces of the end portions.

When the length of the support 110 is changed by the operation of the length adjusting part 120, the guide part 130 is used to stably move the unit pipe.

7 is a view showing an example of the configuration of the guide portion used in the present invention. Referring to FIG. 7, the guide part 130 includes a guide groove 132 and a guide protrusion 134. FIG. 7 is a view for understanding the correlation between the guide groove 132 and the guide protrusion 134, and shows only the guide groove 132 and the fixed rod 134.

The guide groove 132 is formed in the first and second unit pipes 112 and 114 in parallel with the central axis, respectively, except for the third unit pipe 116 disposed on the top of the support 110. The guide groove 132 penetrates from the inside of each unit pipe to the outside thereof.

The guide protrusion 134 protrudes from the bottom of the outer circumferential side of the second and third unit pipes 114 and 116 except for the first unit pipe 112 disposed at the lowermost end on the support 110.

Here, the guide protrusion 134 may be formed in a 'T' shape, and the guide groove 132 may be formed in a 'T' shape corresponding to the shape of the guide protrusion 134.

Therefore, the guide protrusion 134 of the second unit pipe 114 is located in the guide groove 132 of the first unit pipe 112, and guides movement when the second unit pipe 114 moves up and down. do.

7 illustrates the configuration of the guide groove 132 and the guide protrusion 134 formed in the first unit pipe 112 and the second unit pipe 114, respectively. Since the configuration of the guide groove 132 and the guide protrusion 134 respectively formed in the second unit pipe 114 and the third unit pipe 116 is the same, a detailed description thereof will be omitted.

After the entire length of the support 110 is changed by the operation of the length adjusting unit 120, the fixing part 140 is used to maintain the length adjustment state of the support 110.

FIG. 8 is a cross-sectional view showing the configuration of a fixing part for fixing in the state of the post shown in FIG. 6. FIG.

The fixing part 140 includes a plurality of fixing holes 142 and a fixing rod 144.

The side of each unit pipe of the fixing hole 142 is formed parallel to the central axis of the pipe. At this time, the spacing and diameter of the fixing hole 142 formed in each unit pipe is preferably the same.

The fixed rod 144 is inserted into a predetermined fixing hole 142 in the state in which the entire length of the support 110 is adjusted by the length adjusting unit 120 to maintain the length adjustment state of the support 110.

An operation of an embodiment of the present invention configured as described above will be described.

1 and 3, the strut 110 of the solar street light 100 according to the present invention is a state in which it is extended to the maximum length, it can be seen that the street lamp is installed and used in a predetermined place.

At the beginning of operation of the street lamp, the power generation panel 20 is folded as shown in FIGS. 1 and 2.

First, the optical sensor 40 measures illuminance of the surroundings, and outputs a signal corresponding to the measured illuminance and inputs it to the controller 60.

The controller 60 determines whether the illuminance measured by the light sensor 40 is a level suitable for photovoltaic power generation or whether the light emitting means 50 needs to be turned on using the input illuminance signal.

The control unit 60 determines that it is daytime if the measured illuminance is equal to or greater than the set value (for example, 100 lux or more), and the motor control signal for unfolding the power generation panel 20 by determining that the solar cell can convert sunlight into power. Outputs

The motor 30 receiving the motor control signal operates to unfold the power generation panel 20 as shown in FIGS. 3 and 4. The operation in which the power generation panel 20 is unfolded is similar to the operation in which the flowers are in full bloom, thereby improving aesthetic effect.

The solar panel 22 on the front of the unfolded power generation panel 20 converts sunlight into power and outputs the power, and the output power is charged in the rechargeable battery 26. The power output from the solar panel 22 is 18.5V DC, and the rechargeable battery 26 may be a rechargeable battery having a rated voltage of 12V, but the specification may be changed according to a user's needs.

While the power is continuously output from the power generation panel 20, the optical sensor 40 continuously measures the ambient illuminance.

If the measured illuminance is less than the set value (for example, less than 100 lux), the controller 60 determines that the illuminance is less than the set value even when it is night or daytime, that is, the solar cell cannot convert sunlight into power. To output a motor control signal that causes the power generation panel 20 to be folded.

The motor 30 receiving the motor control signal operates to fold the power generation panel 20 as shown in FIGS. 1 and 2.

As the power generation panel 20 is folded, the solar panel 22 in front of the power generation panel 20 is not exposed to the outside, thereby preventing contamination by dust or the like. Particularly, even in rainy weather or during snowfall, the side of the power generation panel 20 is provided with a waterproof packing or grooves and protrusions which are coupled to each other, thereby preventing external moisture from penetrating between the power generation panel 20 and the solar panel 22. Contamination of the surface is prevented.

When the power generation panel 20 is folded, the light emitting means 50 on the back of the power generation panel 20 is turned on to illuminate the surroundings (S132). Here, the control unit 60 further subdivids the surrounding illuminance determination unit to separately set the step of folding the power generation panel 20 and the step of turning on the light emitting means 50 after the power generation panel 20 is folded. Although it is impossible to do so, it is possible to prevent the light emitting means 50 from emitting light and wasting power when lighting is not required.

On the other hand, the power generation panel 20 may be contaminated by dust or the like during the power generation using the solar light, and when maintenance work such as replacement of the light emitting means 50 is required, the top of the solar street light 100 It is preferable to perform the maintenance work adjusted by lowering the height of the strut 110 of the solar street light 100 without going up.

For maintenance work of the solar street lamp 100 according to the present invention can be performed as follows.

In the initial state, the post is in a state in which the second and third unit pipes 114 and 116 are fully extended as shown in FIG. 6.

The user rotates the handle 122 counterclockwise. The first pinion gear 124a rotates by the rotation of the handle 122, and the first rack gear 126a meshed with the first pinion gear 124a moves horizontally downward. Counterclockwise manipulation of the handle 122 is caused by the handle 122 being installed on the left side of the support 110, and when the handle 122 is installed on the right side of the support 110, the handle 122 is operated in a clockwise direction.

9 and 10 are diagrams each showing an example of an operating state of the support shown in FIG.

Since the first rack gear 126a is installed on the side of the second unit pipe 114, the second unit pipe 114 is moved inside the first unit pipe 112 by the movement of the first rack gear 126a. Is inserted into the state as shown in FIG. 9, and thus, the height of the entire support 110 is lowered.

When the second unit pipe 114 is inserted into the first unit pipe 112 to a certain degree, the second rack gear 126b in which the second pinion gear 124b is installed on the side of the third unit pipe 116 is provided. )

The second rack gear 126b is moved downward by the continuous operation of the handle 122 so that the third unit pipe 116 is inserted into the second unit pipe 114, as shown in FIG. In the same state, the height of the entire support 110 is lowered.

9 and 10, when the length of the support 110 is adjusted, the unit pipe may be easily moved by the guide unit 130.

As shown in FIG. 10, when the fixing holes 132 of the first to third unit pipes 112, 114, and 116 coincide with each other in the state where the length of the support 110 is adjusted, the user may fix the rod 134. ) Is inserted into a specific fixing hole 132 to maintain the length adjustment state. In this case, the user may insert the fixing rod 134 for each of the plurality of fixing holes 132, or insert a single fixing rod 134 into the single fixing hole 132.

When the height of the support 110 is lowered to the extent that maintenance work is possible, the user performs the cleaning work on the solar panel 22 and the light emitting means 50.

After the maintenance work is completed, the fixing rod 134 is released from the fixing hole 132, and then the handle 122 is rotated in the opposite direction so that the second and third unit pipes 116 are raised to support the pillar 110. ) Return the height to its original state. When the height of the support 110 is returned to its original state, the fixing hole 132 at the top of the first unit pipe 112 and the fixing hole 132 at the bottom of the second unit pipe 114 coincide with each other. The fixing rod 134 is inserted in the state to maintain the height state. In addition, the second unit pipe 114 and the third unit pipe 116 are maintained in the same manner.

The present invention as described above can be prevented that the surface of the solar cell for supplying power to various devices is contaminated by dust and rain water to reduce the power generation efficiency. In addition, it is possible to facilitate the maintenance work for the power generation panel, the light emitting means, etc. by adjusting the height of the support when the maintenance work for the solar street light low.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

10: support plate
20: power generation panel
30: Motor
40: light sensor
50: light emitting means
60:
100: solar street light
110: prop
120: length adjustment part
130: guide portion
140:

Claims (8)

A plurality of power generation panels mounted on a front surface of the solar panel, a rear surface of which is formed of a light transmissive material, and one end of which is arranged to be folded or folded by a rotating shaft and arranged along an edge of the support plate; A motor connected to the rotation shaft of the power generation panel so that the power generation panel is unfolded or folded; A rechargeable battery storing power output from the power generation panel; Light emitting means for emitting light by power supplied through the rechargeable battery; A controller for controlling the motor and the light emitting means according to the illuminance measured by the optical sensor; Including,
A prop in which the power generating panel and the light emitting means are installed, and a plurality of unit pipes having different diameters are inserted into and separated from each other, and the elongation and elongation of the length is made;
A length adjusting unit which adjusts the total length of the posts by adjusting the elongation and expansion of the plurality of unit pipes;
A fixing part for maintaining the length of the post by the length adjusting part in an adjusted state; And
It includes a guide for guiding the movement of the unit pipe when adjusting the length of the unit pipe,
The length adjustment unit
A plurality of pinion gears installed parallel to the unit pipe at the lowermost end of the plurality of unit pipes and interlocked in the same direction;
A plurality of rack gears attached to the side of the unit pipe other than the lowermost unit pipe among the plurality of unit pipes in parallel with the central axis of the unit pipe and engaged with the pinion gear;
A handle connected to a rotational axis of the pinion gear of one of the plurality of pinion gears and rotating by a user's operation,
A transmission gear for transmitting the rotational force of the pinion gear connected to the handle to the neighboring pinion gear;
And a cover for separating the pinion gear and the transmission gear from the outside. delete The method of claim 1,
The guide portion
A guide groove formed parallel to a central axis and penetrating through the unit pipe, except for the unit pipe at the uppermost end of the plurality of unit pipes;
A solar street light including a guide protrusion protruding to one side of the unit pipe except the unit pipe at the lowermost end of the plurality of unit pipes and inserted into the guide groove passing through the unit pipe. The method of claim 3,
The guide groove and the guide protrusion is a solar street light is formed in a 'T' shape. The method of claim 3,
And the guide groove and the guide protrusion are attached to opposite sides of the rack gear. The method of claim 1,
The fixed portion
A plurality of fixing holes formed at one side of each unit pipe in parallel to a central axis;
And a fixing rod inserted into the fixing hole after the fixing holes of the unit pipe coincide with each other so that the length adjustment state of the post is maintained. The method according to claim 6,
Fixing holes formed in the respective unit pipes are formed in the same distance and diameter solar street light. The method of claim 1,
It is a street light that is turned on when the illuminance is measured by an optical sensor and the illuminance is below a certain level.
The controller controls the power generation panel to be folded by the motor when the illuminance measured by the optical sensor is equal to or less than a set value.
The solar street light for controlling the power generation panel to be unfolded by the motor if the set value or more.

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