JP2008258500A - Power supply device and power transmission line monitoring apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solar battery panel in which working efficiency is improved by protecting the solar battery panel and preventing a required operation from being forgotten by an operator with a simple method. <P>SOLUTION: When a switch unit 32 is turned on, a regulation piece 54 is absorbed and held to an electromagnet 50. An L-shaped arm 56 abuts the undersurface of an end 54b of the regulation piece 54, and the rotation of the L-shaped arm 56 is regulated. A locking piece 28 abuts the other end 56a of the L-shaped arm 56, and the rotation of the locking piece 28 is regulated. This also regulates the rotation of the solar battery panel 16 to which the locking piece 28 is attached, and locks the solar battery panel 16 at a second rotation position (90°). <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a power supply device and a power transmission line monitoring device. Specifically, the present invention relates to a power supply device and a power transmission line monitoring device that protects a solar cell panel from falling objects and flying objects by locking the solar cell panel attached to a steel tower by a locking means at a second rotation position.

  In recent years, there have been an increasing number of cases where an accident monitoring device for monitoring an accident point on a transmission line during a lightning strike is installed on a steel tower. The accident monitoring device is composed of a detection device that detects the current direction of lightning strike and a communication device that transmits the detected data to the monitoring center, and by collecting the failure data obtained by the detection device, the failure section and The distance to the failure point is standardized. As the power source of the accident monitoring device, a solar cell panel is used, and a solar cell panel is attached to every steel tower where the accident monitoring device is installed (at intervals of 10 to 20 power transmission towers).

  This solar panel is attached to a steel tower so that the light receiving surface of the cell faces the sun, that is, faces upward to reliably and efficiently convert light energy emitted from the sun into electrical energy. ing.

  By the way, most of the maintenance work of the transmission line is performed above the position of the steel tower where the solar cell panel is installed. Therefore, in order to prevent the solar panel from being damaged by falling objects such as tools used by workers, and to protect it, the light receiving surface of the cells of the solar panel is protected by a sheet etc. Has been implemented.

  For example, Patent Document 1 describes a light-receiving surface protection device for a solar cell that includes a cover member and a cover member feeding unit that feeds the cover member so as to cover the light-receiving surface of the solar cell device. Thereby, even if a roof tile falls on the light-receiving surface of a solar cell panel with a wind etc., damage to the light-receiving surface of a solar cell can be prevented by covering the light-receiving surface of a solar cell panel with a cover member.

JP-A-8-316509

  However, in the invention described in Patent Document 1, since the light receiving surface of the cell of the solar battery panel is covered and protected by a sheet or the like, power generation stops while the light receiving surface of the cell is protected. For this reason, it is necessary to reliably remove the sheet or the like from the solar cell panel at the end of the maintenance work of the power transmission line and return the light receiving surface of the cell before the work to the exposed state. Thus, there is a problem that the duty of attention is always imposed on the worker, and the burden on the worker increases.

  In addition, in general, in the method of protecting the light receiving surface of the solar cell panel with a sheet or the like, if you forget to bring the sheet and go up to the steel tower, you can go down the steel tower and get back the sheet, Alternatively, the work must be performed without covering the light-receiving surfaces of the cells of the solar battery panel with the sheet, which may hinder the work.

  Therefore, the present invention has been made in view of the above-mentioned problems, and its purpose is to protect the solar cell panel by a simple method and to improve work efficiency by eliminating the worker's forgottenness. And a power transmission line monitoring device.

  In order to solve the above-described problems, the present invention is a power supply device attached to a steel tower so that a solar cell panel and the solar cell panel can be rotated from a first rotation position to a second rotation position. And a locking means for automatically releasing the locked state after automatically locking the solar cell panel at the second rotation position and automatically returning to the first rotation position. Are provided.

  Moreover, the power transmission line monitoring apparatus of this invention is equipped with the power transmission line monitoring apparatus main body attached to a power transmission tower, and the said power supply device mentioned above.

  For example, the locking means temporarily locks the locking piece attached to the solar cell panel, the locking portion for locking the locking piece, and the locking portion, and then automatically releases the lock. And a lock portion.

  In the power supply device and the power transmission line monitoring device of the present invention, the solar cell panel is locked at the second rotation position by the locking means. The second rotation position is, for example, a rotation position such that the contact area between the light receiving surface that receives sunlight of the solar cell panel and flying objects or falling objects from above the steel tower is reduced. More specifically, when a flying object or a falling object falls in a substantially vertical direction, the angle is 90 ° parallel to the vertical direction. Thereby, flying objects and falling objects do not come into contact with the light receiving surface of the solar cell panel, or fall through the solar cell panel with minimum area contact.

  The lock part of the lock means is an electromagnet, and power from the solar cell panel is used as a power source for the electromagnet.

  The solar cell panel is installed in advance as a drive source for a power transmission line monitoring device attached to a power transmission tower, for example, a voltage / current sensor or an orientation device. Therefore, a solar cell panel can be used together as a drive source for the lock means, and there is no need to separately install a drive source for the lock means.

  Moreover, since the power generation by the solar cell panel is stopped from the evening to the night, the lock on the solar cell panel is automatically released. As a result, even if the solar cell panel remains in the second rotation position, the solar cell panel can be automatically returned from the second rotation position to the first rotation position.

  According to the present invention, by providing the locking means, the solar cell panel can be locked at the second rotational position, and can be protected from a falling object or the like by a simple method. Moreover, since it is not necessary for the operator to bring a seat, the worker's forgetfulness can be avoided, and the work efficiency can be improved. Furthermore, since the lock on the solar cell panel is automatically released, the second rotation position is automatically returned to the first rotation position without performing the rotation operation to the first rotation position. be able to.

  Embodiments of the present invention will be described below with reference to the drawings. In each drawing used for the following description, the scale of each member is appropriately changed to make each member a recognizable size.

[First Embodiment]
(Configuration of accident monitoring system)
FIG. 1 is a diagram showing the configuration of the accident monitoring system 100.
The accident monitoring system 100 includes an accident monitoring device (power transmission line monitoring device) 90 for monitoring an accident of a power transmission line attached to the tower 12, and a power center in which orientation is performed based on data collected by the accident monitoring device 90. 8.

  The accident monitoring device 90 can be composed of the voltage / current sensor 14, the orientation device 18, and the power supply device 10. As shown in FIG. 1, a voltage / current sensor 14 that detects a current value and a voltage value at the time of a lightning strike is attached to the top of the steel tower 12. Below the position where the voltage / current sensor 14 of the tower 12 is attached, in this example, an orientation device 18 for acquiring data detected by the voltage / current sensor 14 is attached, and further below the orientation device 18 and the voltage. A power supply device 10 for supplying power to the current sensor 14 is attached. The orientation device 18 has a communication function, and transmits the acquired data to the power center 8. The power center 8 collects the transmitted data and locates the fault section and the fault point.

(Configuration of power supply)
Next, the power supply apparatus 10 attached to the steel tower 12 mentioned above is demonstrated. FIG. 2 is a perspective view showing an example of the configuration of the power supply device 10. FIG. 3 is a cross-sectional view showing the configuration of the power supply device 10. FIG. 4 is a diagram showing the internal configuration of the case 34. The solar cell panel 16 and the case 34 that accommodates the locking means 60 are arranged at a predetermined distance from each other.

  As shown in FIG. 2, the power supply device 10 includes a solar cell panel 16 that converts light energy emitted from the sun into electrical energy, an attachment portion 24 for attaching the solar cell panel 16 to the steel tower 12, and a solar cell panel. The locking means 60 is configured to lock 16 at a predetermined rotational position.

  The solar cell panel 16 includes a solar cell module 20 in which a plurality of cells are arranged in a matrix, and a support frame 21 attached to the outer periphery of the solar cell module 20. A flat light receiving surface 20a is provided on the surface of the solar cell module 20 facing the sunlight.

  The attachment portion 24 for rotatably supporting the solar cell panel 16 has an attachment member, and this attachment member is a rectangular iron plate in this example. One end of the attachment portion 24 is provided with an elastic hinge portion 22 with a built-in spring, and the lower end side of the support frame 21 of the solar cell panel 16 is rotatably attached to the elastic hinge portion 22. As shown in FIG. 3, the solar cell panel 16 is supported while being stationary at a rotation position (first rotation position) at a predetermined angle θ with respect to the horizontal plane, by the elastic force of the elastic hinge portion 22. The elastic hinge 22 is elastically biased counterclockwise with the fulcrum as a fulcrum. The predetermined angle θ is an angle at which the power generation efficiency of the solar cell module 20 is maximized. 2 and 3 show a case where the angle θ is 30 ° as the first rotational position. Further, when an external pressure such as wind is applied to the solar cell panel 16, the solar cell panel 16 may swing around the elastic hinge portion 22. Therefore, while energizing with a spring force that does not swing, as shown in FIG. 3, the stopper 44 having the inclination angle of the angle θ described above is fitted between the solar cell panel 16 and the mounting portion 24, The solar cell panel 16 is fixed at the rotation position of the angle θ.

  As shown in FIG. 3, a switch unit 32 that controls supply of electric power to an electromagnet 50 to be described later is attached in the vicinity of the elastic hinge portion 22 on the lower surface of the attachment portion 24. The switch unit 32 is a push switch or the like.

  In this example, the mounting portion 24 described above is attached to an arm 70 extending along both ends of the lower surface, and the arm 70 is attached to an arm 71 orthogonal to the longitudinal direction of the arm 70. The attachment portion 24 is attached and fixed to the first rotation position (30 °) of the steel tower 12 through 70 and 71 (see FIG. 1).

(Configuration of locking means)
The locking means 60 that locks the solar cell panel 16 at a predetermined rotation position (second rotation position) locks the locking piece 28 and the locking piece 28 as shown in FIGS. The engaging portion 64 and the electromagnet 50 that temporarily locks the engaging portion 64 at the second rotational position and then releases the lock.

  As shown in FIG. 3, the locking piece 28 is a rectangular flat plate, which is on the side opposite to the light receiving surface 20a of the solar cell panel 16, and in this example, as shown in FIG. Attached to. The lower end of the locking piece 28 has such a length as to abut on the L-shaped arm 56 constituting the locking portion 64.

  As shown in FIG. 3, a switch pressing portion 30 having a rectangular plate shape extending in a direction substantially orthogonal to the inner surface 28 c is attached to the inner surface 28 c of the locking piece 28. Although the locking piece 28 and the switch pressing part 30 are separate structures, they may be integrally formed. The switch pressing portion 30 is rotated with the rotation of the locking piece 28 attached to the solar cell panel 16, and when the solar cell panel 16 rotates to a position of approximately 90 ° (second rotation position), the switch is pressed. The part 32 is pressed (see FIG. 8).

  A rectangular parallelepiped case 34 that accommodates the locking portion 64 and the electromagnet 50 described above is disposed below the attachment portion 24. An insertion port 36 for inserting the locking piece 28 and the like into the inside is formed in the upper part of the case 34. In this example, the rear end (outer periphery excluding the upper surface) of the case 34 is attached to a storage holding case 72 having a U-shape, and the storage holding case 72 is connected to the tower 12 ( (See FIG. 1).

(Internal structure of the case)
Next, the configuration of the locking portion 64 and the electromagnet 50 housed in the case 34 will be described.

  As shown in FIGS. 3 and 4, the electromagnet 50 constitutes an example of a lock portion, and is provided at a substantially central portion of the bottom surface inside the case 34. The electromagnet 50 is composed of a cylindrical iron core (rod) made of a magnetic material and a coil wound around the outer periphery of the iron core, and the upper end surface of the iron core protrudes from the upper edge of the coil. Is secured.

  The locking portion 64 that locks the locking piece 28 includes a restriction piece 54 and an L-shaped arm 56. The restricting piece 54 has a flat belt shape (iron plate) made of a conductive material, and a right end portion 54a thereof is inserted into a support shaft 40 attached to the inner side surface of the case 34, and is rotatably supported by the support shaft 40. The Further, the regulating piece 54 abuts on the upper surface of the electromagnet 50 by applying its own weight or light elastic force to the regulating piece 54.

  The L-shaped arm 56 is rotatably supported by inserting a support shaft 46 attached to the inner side surface of the case 34 at the bent portion. Further, a torsion spring 38 is sheathed on the support shaft 46 adjacent to the L-shaped arm 56. As shown in FIG. 4, one end 38 a of the torsion spring 38 is attached to the side surface of the case 34, and the other end 38 b is attached to the side surface of the horizontal piece of the L-shaped arm 56. As a result, as shown in FIG. 3, the right end portion 56 b of the L-shaped arm 56 abuts the lower surface 54 c of the left end portion 54 b of the regulating piece 54 by the torsion spring 38 and the support shaft 46. The support shaft 46 is supported so as to be stationary, and is elastically biased in the counterclockwise direction of the support shaft 46 (arrow direction D1 in FIG. 3).

(Circuit configuration of accident monitoring device)
Next, an example of the circuit configuration of the power supply device 10 provided in the steel tower 12 is shown in FIG.
As shown in FIG. 5, a load (voltage / current sensor 14, orientation device 18) and an electromagnet 50 that are driven by the power generated by the solar cell panel 16 are connected to the solar cell panel 16. Between the solar cell panel 16 and the electromagnet 50, a switch unit 32 that controls supply of electric power to the electromagnet 50 is provided. The driving of the electromagnet 50 is controlled by turning on / off the switch unit 32. When the switch unit 32 is turned on, a current flows through the coil of the electromagnet 50, and a magnetic force is generated in the electromagnet 50. A battery 52 (battery) for charging the power generated from the solar cell panel 16 is provided between the power supply device 10 and the loads 14 and 18. One end of the battery 52 is connected with a backflow prevention diode 62 for preventing a backflow of power charged in the battery 52 toward the solar battery panel 16. Therefore, the electromagnet 50 is connected between the backflow prevention diode 62 and the solar cell panel 16 and is not energized by the battery 52.

(Locking operation, unlocking operation)
Next, an operation for locking the light receiving surface 20a of the solar cell panel 16 at a predetermined angle and an operation for releasing the lock will be described. 6-9 is a figure which shows operation | movement of the solar cell panel 16. FIG.

I. Normal State In a normal state (initial state) in which no power transmission line maintenance work is performed, as shown in FIG. 6, the solar cell panel 16 is, for example, on the south side so that the power generation efficiency of the solar cell panel 16 is maximized. The rotation position is regulated by the steel tower 12 (see FIG. 1) so that the angle is 30 ° (first rotation position).

II. Operation Before Work When performing the maintenance work of the power transmission line, as shown in FIG. 8, before the work, the solar cell panel 16 is rotated and installed at, for example, 90 ° with respect to the horizontal plane. The maintenance work of the power transmission line is often performed above the power supply device 10 installed on the tower 12, and the work tools and flying objects used during the work fall in a substantially vertical direction. Therefore, by installing the light receiving surface 20a of the solar cell panel 16 in a parallel direction (90 °) to the vertical direction in which the fallen object falls, the contact area with the fallen object etc. is minimized, and the solar cell panel 16 It becomes possible to protect the light receiving surface 20a. Note that the angle θ is not limited to 90 ° as long as the contact area with a falling object or the like can be reduced. Further, the operation of raising the light receiving surface 20a of the solar cell panel 16 may be performed by the operator himself, or may be automatically performed by further attaching a rotating means or the like to the solar cell panel 16.

  As shown in FIG. 7, the interlocking piece 28 and the switch pressing portion 30 attached to the solar cell panel 16 rotate counterclockwise in conjunction with the operation of rotating the solar cell panel 16 to the 90 ° position. To do. By this turning operation, the lower end 28a of the locking piece 28 comes into contact with the outside of the upper end portion 56a of the L-shaped arm 56, so that the L-shaped arm 56 is pushed clockwise. As a result, the locking piece 28 rotates clockwise about the support shaft 46 of the L-shaped arm 56 (arrow direction D3 in FIG. 7) and gets over the upper end portion 56a. Then, as shown in FIG. 8, when the solar cell panel 16 rotates to the 90 ° position, the lower end 28 a of the locking piece 28 deviates from the rotation trajectory of the L-shaped arm 56. Since the biasing force (counterclockwise) of the torsion spring 38 is applied, the L-shaped arm 56 returns to the original state (see FIG. 6).

  On the other hand, when the solar cell panel 16 is rotated to a position of 90 °, the switch pressing portion 30 attached to the locking piece 28 presses the switch portion 32. When the switch portion 32 is pressed, the switch is turned on, a current is supplied to the iron core of the electromagnet 50 to generate a magnetic force, and the regulation piece 54 is attracted and held by the electromagnet 50. As described above, since the right end portion 56b of the L-shaped arm 56 is in contact with the lower surface 54c of the left end portion 54b of the restricting piece 54, the L-shaped arm 56 is counterclockwise by the restricting piece 54 attracted to the electromagnet 50. Directional rotation is prohibited and locked. Since the rotation of the L-shaped arm 56 is locked, the rotation of the solar cell panel 16 is also restricted, and the solar cell panel 16 is locked at the 90 ° position.

  Even when the solar cell panel 16 is locked at a position of 90 °, since the sunlight is not shielded, the power generation amount is reduced, but the locked state can be maintained. Moreover, the accident monitoring apparatus 90 (refer FIG. 1) is working normally by the electric power generation of the solar cell panel 16 and the battery 52 even during work.

III. At the time of return As shown in FIG. 9, when the work is finished and the sun begins to fall, the amount of power generated by the solar cell panel 16 begins to attenuate, and the amount of current flowing through the electromagnet 50 also decreases. The magnetic force generated by is also attenuated. Thereby, the attractive force with respect to the restriction piece 54 of the electromagnet 50 is reduced. Here, the relationship of the urging force of the solar cell panel 16 (clockwise)> the urging force of the L-shaped arm 56 (counterclockwise)> the weight of the regulating piece 54 or the urging force (counterclockwise) is established. Therefore, the urging force in the clockwise direction (arrow direction D5 in FIG. 9) of the locking piece 28 of the solar cell panel 16 is larger than the attracting force that attracts the regulating piece 54 of the electromagnet 50 and the urging force of the L-shaped arm 56. Thus, the lock of the L-shaped arm 56 with respect to the solar cell panel 16 is released. The regulating piece 54 tilts clockwise around the support shaft 40 and then returns to the normal state shown in FIG. 6 due to its own weight. In this manner, the solar cell panel 16 automatically returns to the first rotation position (see FIG. 6) in the normal state due to the attenuation and reduction of the power generation of the solar cell module 20.

  According to the present embodiment, the solar cell panel 16 is locked by the locking means 60 at an angle such as 90 ° where the contact area between the light receiving surface 20a of the solar cell panel 16 and the flying object and falling object becomes small. The Thereby, falling objects and flying objects do not contact the light receiving surface 20a of the solar cell panel 16 or pass through the solar cell panel 16 with a minimum area contact and fall. Therefore, the solar cell panel 16 can be protected from a falling object or the like by a simple method, and damage or destruction of the solar cell panel 16 can be avoided.

  In addition, by providing the locking means 60 in the power supply device 10, it is not necessary for the operator himself to bring a sheet or the like that protects the light receiving surface 20 a of the solar battery panel 16. Work efficiency can be improved.

  Further, the lock on the solar cell panel 16 is automatically released by reducing and stopping the power generation of the solar cell module 20, so that the first rotation is automatically performed from the second rotation position (90 °) after the work is completed. It can be returned to the moving position. Thereby, a burden of an operator is further reduced.

  Furthermore, the solar battery panel 16 that drives the locking means 60 is previously installed as a drive source for an accident monitoring device 90 for monitoring an accident on a power transmission line during a lightning strike, for example, the voltage / current sensor 14 or the orientation device 18. Therefore, it is not necessary to separately install a drive source for the lock means 60, and the solar cell panel 16 can be protected at low cost.

[Second Embodiment]
Next, the present embodiment will be described with reference to the drawings.
This embodiment is different from the first embodiment in that the locking piece 28 of the solar cell panel 16 is directly held by the electromagnet 50 and locked. Since the configuration of the other power supply apparatus 10 is the same as that of the first embodiment, common constituent elements are given the same reference numerals and detailed description thereof is omitted.

(Configuration of power supply)
FIG. 10 is a perspective view showing an example of the configuration of the power supply device 10. FIG. 11 is a cross-sectional view showing the configuration of the lock means 60.
As shown in FIGS. 10 and 11, the lock unit 60 includes a locking piece 28 attached to the solar cell panel 16 described above, and an electromagnet 50 that constitutes an example of a lock portion. The electromagnet 50 is accommodated in the case 34. As shown in FIG. 11, the electromagnet 50 is disposed substantially at the center of the bottom surface inside the case 34, and the tip surface of the iron core protruding from the left end of the coil of the electromagnet 50 rotates to a position where the solar cell panel 16 is 90 °. When it does, it contacts with the locking piece 28 which rotated.

(Locking operation, unlocking operation)
Next, an operation for locking the light receiving surface 20a of the solar cell panel 16 at a predetermined angle and an operation for releasing the lock will be described. 12-15 is a figure which shows operation | movement of the solar cell panel 16. FIG.

I. Normal State In a normal state in which no maintenance work is performed on the transmission line, as shown in FIG. 12, the solar cell panel 16 has, for example, an angle of 30 ° on the true south side so that the power generation efficiency of the solar cell panel 16 is maximized. The rotation position is regulated by the steel tower 12 (see FIG. 1) so as to be (first rotation position).

II. Operation before Work When performing maintenance work of the power transmission line, as shown in FIGS. 13 and 14, the solar cell panel 16 is turned to 90 ° (second turning position) and stood before work. Let
Then, as shown in FIG. 14, when the solar cell panel 16 is rotated to the 90 ° position, the switch pressing portion 30 attached to the locking piece 28 presses the switch portion 32 in conjunction with this. When the switch portion 32 is pressed, the switch is turned on, a current is supplied to the iron core of the electromagnet 50 to generate a magnetic force, and the locking piece 28 is attracted and held by the electromagnet 50. Since the locking piece 28 is locked by the electromagnet 50, the solar cell panel 16 is locked at a position of about 90 ° (second rotation position).

III. At the time of return, as shown in FIG. 15, when the work is finished and the sun begins to fall, the amount of power generated by the solar cell panel 16 begins to attenuate, and the amount of current flowing through the electromagnet 50 also decreases. The magnetic force generated by is also attenuated. Thereby, the attractive force with respect to the locking piece 28 of the electromagnet 50 falls. The energizing force in the clockwise direction (arrow direction D7 in FIG. 15) of the locking piece 28 of the solar cell panel 16 is larger than the attracting force that attracts the locking piece 28 of the electromagnet 50, whereby the electromagnet with respect to the solar cell panel 16 is obtained. 50 lock is released. In this way, the solar cell panel 16 automatically returns to the first rotation position in the normal state (see FIG. 12) by the attenuation and reduction of the power generation of the solar cell panel 16.

  According to the present embodiment, the configuration of the locking unit 60 can be made simpler than the configuration of the locking unit 60 described in the first embodiment. Thereby, while reducing the number of parts, a manufacturing process is simplified and cost reduction can be achieved.

  It should be noted that the technical scope of the present invention is not limited to the above-described embodiments, and includes those in which various modifications are made to the above-described embodiments without departing from the spirit of the present invention.

  The present invention can be suitably applied to the case where the light receiving surface of a solar cell panel attached to a steel tower is protected from falling objects.

It is a figure which shows the structure of an accident monitoring apparatus system. It is a perspective view which shows the structure of the power supply device which concerns on one Embodiment of this invention. It is sectional drawing which shows the structure of a power supply device. It is a cross-sectional view which shows the structure of a locking means. It is a figure which shows the circuit structure of an accident monitoring apparatus. It is a figure which shows the operation | movement which locks a solar cell panel (the 1). It is a figure which shows the operation | movement which locks a solar cell panel (the 2). It is a figure which shows the operation | movement which locks a solar cell panel (the 3). It is a figure which shows the operation | movement which cancels | releases the lock | rock of a solar cell panel. It is sectional drawing which shows the structure of the power supply device which concerns on other embodiment of this invention. It is a cross-sectional view which shows the structure of a locking means. It is a figure which shows the operation | movement which locks a solar cell panel (the 1). It is a figure which shows the operation | movement which locks a solar cell panel (the 2). It is a figure which shows the operation | movement which locks a solar cell panel (the 3). It is a figure which shows the operation | movement which cancels | releases the lock | rock of a solar cell panel.

Explanation of symbols

DESCRIPTION OF SYMBOLS 8 ... Electric power center, 10 ... Power supply device, 12 ... Steel tower, 14 ... Voltage-current sensor, 16 ... Solar cell panel, 18 ... Standardization device, 20 ... Solar cell module, 20a ... Light-receiving surface, 21 ... Support frame, 22 ... Elasticity Hinge part, 24 ... attachment part (attachment means), 28 ... locking piece (locking means), 30 ... switch pressing part, 32 ... switch part, 34 ... case, 36 ... insertion port, 38 ... torsion spring, 40 ... support Shaft 44. Stopper 46. Support shaft 50. Electromagnet (locking part) 52 Battery Battery 54 Restricting piece (locking part) 56 L-shaped arm (locking part) 60 Locking means 62 DESCRIPTION OF SYMBOLS ... Backflow prevention diode, 64 ... Locking part, 70 ... Arm, 72 ... Accommodation holding case, 74 ... Arm, 90 ... Accident monitoring device, 100 ... Accident monitoring system

Claims (7)

A power supply device attached to a steel tower,
A solar panel,
Attachment means attached to the steel tower so that the solar cell panel can be rotated from a first rotation position to a second rotation position;
A power supply device comprising: locking means for automatically releasing the locked state after locking the solar cell panel at the second rotation position and automatically returning to the first rotation position. . The locking means is
A locking piece attached to the solar cell panel;
A locking portion for locking the locking piece;
The power supply device according to claim 1, further comprising: a lock portion that temporarily locks the locking portion and then automatically releases the lock. The power supply apparatus according to claim 1, wherein the lock unit is an electromagnet, and electric power from the solar cell panel is used as a power source of the electromagnet. The attachment means includes
2. The power supply device according to claim 1, further comprising a switch unit for the electromagnet, wherein the electromagnet is energized by turning on the switch unit at the second rotation position. The locking portion is
The power supply device according to claim 2, comprising an L-shaped arm and a restriction piece whose turning state is restricted by an electromagnet. The power supply device according to claim 5, wherein one piece of the L-shaped arm is in contact with the locking piece, and the other piece is in contact with the restricting piece. A power transmission line monitoring device attached to the power transmission tower,
A power transmission line monitoring apparatus comprising: the power supply apparatus according to any one of claims 1 to 6.

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