JPH10136864A - Solar battery and motor-driven gate using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar battery, with which a light receiving plane can be kept clean as much as possible without interposing any human labor, and a motor-driven gate using this solar battery. SOLUTION: Concerning a solar battery SB for supplying power to a load to be operated by radio while erecting bird sticks 12 at the edge part of a light receiving part so as to block flying of birds, the bird stick 12 is composed of a reception antenna 12a for a radio signal for operation to the load.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a solar cell and an electric gate using the solar cell.

[0002]

2. Description of the Related Art Heretofore, small solar cells installed outdoors have been installed in locations where sunlight conditions are good, that is, relatively high places.

[0003]

However, since it is installed at a high place, there is a high possibility that the light receiving surface will be contaminated by feces of flying birds and the like, and in that case, the sunshine There is a problem that the power generation efficiency is reduced even under good conditions. On the other hand, when wirelessly operating a load to which power is supplied by such a solar cell, it is necessary to separately provide an antenna for receiving radio signals satisfactorily, and there is room for further improvement based on the installation position and the like. there were. Furthermore, since it is installed outdoors exposed to the wind and rain, there is also a problem that dust adheres to the light receiving surface and the power generation efficiency is reduced even under good sunshine conditions as described above. In view of the above-mentioned problems, an object of the present invention is to provide a solar cell capable of keeping a light receiving surface as clean as possible without human intervention and an electric gate using the solar cell.

[0004]

In order to achieve this object, a first feature of a solar cell according to the present invention is to prevent birds from flying as described in claim 1 of the claims. A solar cell in which a bird avoiding rod is erected on the edge of the light receiving unit and supplies power to a wirelessly operated load,
The bird avoiding rod is constituted by an antenna for receiving a radio signal for operation with respect to the load. The second feature configuration is
As described in claim 2 of the claims, the solar cell is provided with a cleaning mechanism that retreats from the light receiving unit in the non-operation state and automatically cleans the light reception unit in the operation state, and the power generation efficiency is allowable. The point is that the cleaning mechanism is operated when the value falls below the value. A third characteristic configuration is that, as described in claim 3 of the claims, a contact-type cleaning mechanism is provided that retracts from the light receiving unit in the non-operation state and automatically cleans the light reception unit in the operation state. The solar cell is characterized in that the cleaning mechanism is operated when water droplets are present on the light receiving unit. The characteristic configuration of the electric gate using the solar cell according to the present invention is as described in claim 4 of the claims.
Equipped with the solar cell of any of the first to third features described above, by the generated power, the rope laid on the left and right columns, the first state to prevent the passage between the columns, between the columns A driving mechanism for switching to a second state allowing passage of the vehicle.

The operation will be described below. According to the first characteristic configuration of the solar cell, a bird avoiding rod erected on an edge of a light receiving portion of the solar cell that supplies power to a load that is wirelessly operated is operated wirelessly for the load. By configuring with a signal receiving antenna, birds are prevented from flying, avoiding a drop in power generation efficiency due to bird damage such as contamination of the light receiving surface due to bird droppings, etc. This makes it possible to eliminate the need for a separate installation work. According to the second characteristic configuration of the solar cell, the light receiving unit is determined to be contaminated with dust or the like only when the power generation efficiency falls below a preset allowable value, and the cleaning mechanism is received from the non-operation state. Since it can be automatically activated to the action of cleaning the part, it is possible to maintain appropriate power generation efficiency while minimizing power consumption for cleaning while eliminating the need for manual cleaning work. Since the cleaning mechanism is configured to retreat from the light receiving portion in the affected state, there is no possibility that the power generation efficiency is reduced by the cleaning mechanism. According to the third characteristic configuration of the solar cell, when the contact-type cleaning mechanism is operated from the non-operation state to the operation state of cleaning the light-receiving unit at the time of drying, not only is the dirt not sufficiently removed, but also the light-receiving surface A situation that may lead to a decrease in power generation efficiency after scratching occurs, but when there is water droplets on the light receiving unit, the contact-type cleaning mechanism is automatically activated from the non-operation state to the operation state of cleaning the light reception unit. As a result, the light receiving surface can be reliably cleaned while protecting the light receiving surface. According to the characteristic configuration of the electric gate using the solar cell, the first state in which the ropes made of wires or chains laid on the left and right columns are prevented from passing between the columns, and the passage between the columns is allowed. If the electric gate provided with a drive mechanism for switching to the second state to be provided with the solar cells having the above-described first to third characteristic configurations and provided with the drive mechanism using the generated power, there is no power supply equipment. Even in a place, the electric gate can be installed almost in a maintenance-free state without performing equipment work for supplying commercial power.

[0006]

Thus, according to the present invention, there is provided a solar cell capable of keeping the light receiving surface as clean as possible without human intervention.
In addition, an electric gate using a solar cell can be provided.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a solar cell according to the present invention and an electric gate using the solar cell will be described. As shown in FIGS. 1 to 4, the electric gate has a pair of right and left columns 1, 2 erected on both sides of an approach path of the parking lot P, and a chain 4 as a cord suspended between the columns. A driving mechanism 6 that switches between a first state in which vehicle passage is prevented and a second state in which vehicle passage is permitted, a power supply device 8 that supplies power to the driving mechanism 6, A control device 10 for controlling the supply of electric power to the drive mechanism 6 is provided.

As shown in FIGS. 2 and 3, the drive mechanism 6 winds a chain 6b around a pair of sprockets 6a provided at upper and lower positions inside one of the columns 1, and
b, a sliding member 6d fixed to a part of the chain 6b and sliding on the guiding rod 6c along with the movement of the chain is provided on a guide rod 6c installed along the vertical direction of b. And one end of the chain 4 is connected to an induction type electric motor 6e for rotatingly driving the sprocket 6a via an electromagnetic clutch mechanism 6f. The electromagnetic clutch mechanism 6f acts as a brake mechanism for preventing the rotation of the electric motor 6e in a normal state in which the chain 4 is not energized. Then, the chain 4 in the second state is operated to move to the first state by the rotation of the electric motor 6e. A roller 6g that regulates the height of the chain 4 in the first state is attached at a position below the upper sprocket 6a at an intermediate portion in the vertical direction of the column 1 and the roller 6g It is configured to absorb the play and maintain the tension state of the chain 4 in the first state. A steel arm 6h is connected to a ball joint mechanism 6i at an upper position of the other column 2.
And the other end of the chain 4 is connected to the end of the arm 6h, so that when the chain 4 shifts to the second state, By pulling the chain 4 toward the support 2 by its own weight of 6 h, the effective distance of the vehicle is ensured while shortening the separation distance between the two supports 1 and 2. The impact is absorbed by the joint mechanism 6i, so that the mounting portion of the arm 6h to the column 2 is prevented from being broken.

Each end of the chain 4 is attached via a safety mechanism called a shackle mechanism 4a, which is a pin joint, and if excessive tension is applied, the pin joint is broken before the chain 4 is broken. In order to prevent the destruction of the chain 4 itself and reduce the load on the electric motor 6e, a small-diameter lightweight chain 4 is used, and the periphery of the chain 4 is housed in a protective resin tube 4b. By adding a coloring member to the resin tube 4b or providing a retroreflective sheet therein, the driver or the like can use the small-diameter chain 4 even at night when visibility is particularly poor at night. In addition to being configured to be able to surely recognize whether or not the vehicle is in one state, a groove is provided for retreating the chain to a position lower than the ground in the second state to avoid breaking of the chain 4 due to passage of a vehicle. It is constructed so that it can be sufficiently protected without performing any construction work.

As shown in FIGS. 1 and 4, the power supply device 8 includes a solar cell SB rotatably attached to the upper end of one of the columns 1, and a power supply box provided at a position behind the column 1. 3, a storage battery 8a (a plurality of batteries are connected in parallel) for storing power generated by the solar cells SB, and a DC voltage of 12V DC from the storage battery 8a.
It is composed of an inverter circuit 8b for step-up conversion to an AC voltage of 0/60 Hz and AC100V.

In the solar cell SB, a transparent acrylic plate on which a plurality of solar cells connected in series are arranged is attached to an upper end portion of one of the columns 1 in a tilted posture at a predetermined angle so as to be rotatable manually. At the upper frame portion of the acrylic plate, that is, at the edge of the light receiving portion, three bird avoiding rods 12 having a length of about 30 cm for preventing birds from flying are erected perpendicularly to the acrylic plate. The avoiding rod 12 is constituted by an antenna 12a for receiving a radio signal for operation with respect to the load of the control device 10 or the like. Further, the solar cell SB is provided with a cleaning mechanism 14 that retreats from the light receiving unit in the non-operation state and automatically cleans the light reception unit in the operation state. More specifically, the cleaning mechanism 14 has a cleaning frame 14 on both sides of which the left and right frame portions are sandwiched, and which is driven by a gear mechanism (not shown) and a motor to move the holding member 14a vertically movable on the frame. When the control device 10 described later determines that the power generation efficiency has fallen below an allowable value, the cleaning mechanism is activated to clean the light receiving surface. is there.

The control device 10 includes the receiving antenna 1
2a, the driving mechanism 6 is operated based on a signal received by the receiving circuit 10a, and the chain 4 is switched between the first state and the second state. It comprises a control circuit 10b for detecting a charging voltage and switching between charging and discharging states, and a pair of limit switches sw1, sw2 and the like which are input to the control circuit 10b and detect the vertical position of the chain 4. More specifically, when a gate opening command is input from a remote control device (not shown) carried by the driver via the antenna 12a, the clutch mechanism is energized until the lower limit switch sw1 is input. While the brake is released and the chain 4 is controlled to descend by its own weight, when a gate closing command is input, the clutch mechanism is energized until the upper limit switch sw2 is input, and the electric motor 6e is operated to operate the electric motor 6e. The lifting control of the chain 4 is performed. Further, when the storage battery 8a is charged (for example, when it is determined that there is sufficient illuminance by a photoelectric sensor or the like), a required illuminance is secured by the photoelectric sensor S provided near the light receiving surface. If the charging current or the charging voltage per unit time falls below a predetermined value, it is determined that the light receiving surface is dirty, and the cleaning motor is driven.

Another embodiment will be described below. When the cleaning mechanism 14 is operated, a humidity sensor for detecting humidity around the light receiving unit is provided, and the cleaning mechanism 14 is operated only when the humidity is high such that water droplets are present on the light receiving unit. The light receiving surface may be configured to be reliably cleaned while protecting the light receiving surface from occurrence or the like. The solar cell SB
May be provided on any of the columns, and may be provided in a place with good sunshine conditions. In addition to being manually rotatably mounted, it may be automatically rotatably mounted. In this case, when the charging current per unit time or the charging voltage falls below a predetermined value in the state of charging the storage battery 8a, the storage battery 8a can be configured to rotate by a certain angle, but the sun can be arbitrarily set. It is. further,
The solar cell SB is arranged in a state where the outside is convex, in addition to the cell arranged on a flat acrylic plate, and a predetermined position is obtained regardless of a change in the position of the sun without rotating the solar cell SB. You may comprise so that a charging ability may be ensured. In the above-described embodiment, the case where the solar cell SB is used for the electric gate has been described, but the use of the solar cell SB is not limited to this, and is arbitrary.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an electric gate using a solar cell.

FIG. 2 is a sectional view of a main part.

FIG. 3 is a sectional view of a main part.

FIG. 4 is a circuit block diagram of a main part.

[Explanation of symbols]

 SB solar cell 12 Bird avoiding stick 12a Receiving antenna

Claims (4)

[Claims] 1. A solar cell, wherein a bird avoiding rod for preventing birds from flying is erected at an edge of a light receiving unit and supplies power to a wirelessly operated load. A solar cell comprising a receiving antenna of a radio signal for operation with respect to. 2. Retreating from the light receiving section in a non-operating state,
What is claimed is: 1. A solar cell provided with a cleaning mechanism for automatically cleaning a light receiving unit in an operating state, wherein the cleaning mechanism is configured to operate when the power generation efficiency falls below an allowable value. 3. Retreating from the light receiving section in a non-operating state,
A solar cell provided with a contact-type cleaning mechanism for automatically cleaning a light receiving unit in an operating state, wherein the solar cell is configured to operate the cleaning mechanism when water droplets exist on the light receiving unit. 4. A first state in which the solar cell according to claim 1 is provided, wherein the power generated by the solar cell causes the rope body laid on the left and right supports to be prevented from passing between the supports, and a passage between the supports is provided. An electric gate using a solar cell provided with a drive mechanism for switching to an allowable second state.