Solar power cable theft prevention device using locking protective box

Abstract

To cope with a problem that a photovoltaic power generation panel is often installed in a place far away from a manager where there are relatively few people while theft of a cable of a solar power generation device is increasing.SOLUTION: A solar power cable theft prevention device includes: protection plates installed in front of and behind a grid-connected power receiving facility; protection plates provided on all four sides surrounding the grid-connected power receiving facility and the protection plates, with two adjacent pairs joined together; and a key protection box provided at the diagonal positions at the un-joined ends of the protection plates.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to an anti-theft device for a solar power generation cable that utilizes a locking protective box. [Background technology]

[0002] Theft of cables from solar power generation equipment is on the rise, but this is a problem because solar panels for solar power generation equipment are often installed in relatively unpopulated areas, far away from administrators. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2017-169264 [Patent Document 2] Mito 3105795 Summary of the Invention [Problem to be solved by the invention]

[0004] In Patent Document 1, a solar panel is connected via a cable to the DC input side of a solar power generation device, and a power grid is connected to the AC output side, and a power conditioner having an inverter that converts DC power input from the DC input side into AC power detects a disconnection. In Patent Document 2, when an abnormality is detected by an optical sensor or sound sensor, a sound is emitted by a sound generator and a light is emitted by a warning light. However, solar power generation devices are often installed in places where there are relatively few people and far from the administrator, so the effectiveness is limited. The locking protective box of the present invention covers the solar power cable and prevents it from being attacked with cutting tools or physically destroyed by connecting the connection parts on the protective plate and the main body of the locking protective box with a padlock. Furthermore, the arrangement of the locking protective box and the protective plate creates a structure that is difficult to dig up or cut. The locking protective box of the present invention covers the solar power cable and prevents it from being attacked with cutting tools or physically destroyed by connecting the connection parts on the protective plate and the main body of the locking protective box with a padlock. Furthermore, the arrangement of the locking protective box and the protective plate creates a structure that is difficult to dig up or cut. [Means for solving the problem]

[0005] The locking protective box of the present invention encloses the convergence end of the solar power cable on the power conditioner side by connecting the connection parts of the protective plate and the locking protective box body with a padlock, preventing cutting tools and physical destruction. In addition, the arrangement of the locking protective box and the protective plate creates a structure that is difficult to dig up or cut.

[0006] a protective plate (1) joined at one end to another protective plate (22) and having a connecting portion (2) with a joining hole (3) disposed on a substantially vertical surface in the longitudinal direction of the plate at a position near the other end; The contact Continued a protective box body (6) having an insertion opening (10) for inserting a part (2) therein, a connecting part (7) having a connecting hole (8) corresponding to the joining hole (3) so as to be connectable with a padlock, and a central axis of the connecting hole (8) being arranged in a direction substantially perpendicular to an opening surface (9) of the protective box body (6); a lid 12 that covers the protective box body 6 and forms a space for inserting a padlock; It consists of The protective box is a locked protective box in which the connection hole 3 of the connection part 2 of the protective plate 1 and the connection hole 8 of the connection part 7 of the protective box main body 6 are connected by a padlock, Furthermore, the joint hole of the joint of the protective plate 24, which is joined at one end to another protective plate 23, is connected to the joint hole of the joint of the protective box body by a padlock. The bundled end of the cable on the power conditioner side is surrounded by protective plates 1, 22, 23, and 24 to prevent the bundled end of the cable from being dug up. The problem is solved by a protective box for the lock.

[0007] a protective plate (1) joined at one end to another protective plate (22) and having a connecting portion (2) with a connecting hole (3) on a surface approximately perpendicular to the longitudinal direction of the plate at a position near the other end; a protective box body (FIG. 4) in which an insertion opening 17 for inserting the connection part 2 is arranged, and in which a connection part 18 having a corresponding connection hole that can be coupled to the connection hole 3 with a padlock is arranged, the central axis of the connection hole being arranged approximately parallel to the direction of an opening surface 16 of the protective box; a lid 12 that covers the protective box body (FIG. 4) and forms a space for inserting a padlock; It consists of A lockable protective box (FIG. 4) in which the connection hole 3 of the connection part 2 of the protective plate 1 and the connection hole of the connection part 18 of the protective box main body (FIG. 4) are connected by a padlock, Furthermore, the joint hole of the joint of the protective plate 24, which is joined at one end to another protective plate 23, is connected to the joint hole of the joint of the protective box body by a padlock. The bundled end of the cable on the power conditioner side is surrounded by protective plates 1, 22, 23, and 24 to prevent the bundled end of the cable from being dug up. Lock protection box.

[0008] Protective plates installed on the front and rear of the grid-connected power receiving equipment to protect the grid-connected power receiving equipment from destruction from the front and rear of the grid-connected power receiving equipment; A protective plate arranged on four sides surrounding the grid-connected power receiving equipment and the protective plate, and two adjacent pairs joined together; The protective box of the lock according to claim 1 or the protective box of the lock according to claim 2 is disposed at a diagonal position that is an end of the protective plate that is not joined, The protective plate and the protective box are characterized in that they have a structure that uses beams to prevent vertical movement. Solve the problem with a solar power cable theft prevention device. [Effects of the Invention]

[0009] The photovoltaic power generation cable theft prevention device of the present invention can physically prevent theft of the cable of the photovoltaic power generation device. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a schematic diagram of a guard plate placed in the lock's protective box. [Figure 2] 10 is a schematic diagram of the main body of the protective box in which the central axis of the connecting hole of the protective box of the lock is arranged in a direction substantially perpendicular to the opening surface of the protective box main body. FIG. [Figure 3] 1 is a schematic view of the lid of the lock's protective box. [Figure 4] 10 is a schematic diagram of the main body in which the central axis of the connection hole of the protective box of the lock is arranged approximately parallel to the direction of the opening surface of the protective box. FIG. [Figure 5] FIG. 1 is a schematic diagram of a top view of an anti-theft device for a cable of a solar power generation device. [Figure 6] FIG. 1 is a schematic diagram of a front view of a cable anti-theft device for a solar power generation device. [Figure 7] FIG. 10 is a schematic view of the right side of the cable anti-theft device for the solar power generation device. DETAILED DESCRIPTION OF THE INVENTION

[0011] Next, the present invention will be described in detail by way of examples with reference to the accompanying drawings. [Example]

[0012] Theft of solar power generation cables involves digging up, cutting, and stealing the cables connecting solar panels to grid-connected power receiving equipment. This invention provides protection around the grid-connected power receiving equipment to make it difficult to cut the cables that converge on the grid-connected power receiving equipment. This prevents theft of cables from solar power generation equipment. An example of the present invention is shown in Figures 1 to 7. The described embodiment is an example of the present invention, and the invention is not limited thereto. Figure 1 shows a front view, a right side view, and a bottom view of a protective plate 1. In Figure 1, a connecting part 2 having a connecting hole 3 is arranged on the protective plate 1. An end 4 is joined to another protective plate by welding or the like. An end 5 indicates the direction of the protective box of the lock.

[0013] The connection part 2 of the protective plate 1 is inserted through the insertion port 10 of the protective box body 6 of the lock, and the connection hole 3 of the protective plate 1 and the connection hole 8 of the connection part 7 of the protective box body 6 of the lock are connected with a padlock. This physically covers the cables, making them difficult to dig up or destroy with cutting tools. Furthermore, the entire structure is fixed at the center of the grid-connected power receiving equipment 19, and beams are added to prevent vertical removal, strengthening theft prevention functions.

[0014] FIG. 2 shows a front view, a plan view, and a right side view of the main body 6 of the lock protective box. A protective plate 7 having a connection hole 8 is disposed on the main body 6 of the lock protective box. The insertion hole 10 is a hole into which the connection part 2 shown in FIG. 1 is inserted, and the connection hole 3 provided in the connection part 2 and the connection hole 8 are connected by a padlock (not shown). The main body 6 of the lock protective box has an opening 9, and the padlock is inserted through the space formed by the bottom part 11 of the padlock insertion space and the ceiling part 13, inclined part 14, and vertical part 15 of the padlock insertion space of the lid 12 of the lock protective box shown in FIG. 3, and connected by the padlock. The main body 6 of the lock protective box is joined to the edges of the protective plate 23 and the protective plate 22 by welding or the like (FIG. 5).

[0015] The lock protective box body 6 and the protective box lid 12 are joined by welding or the like, and the bottom surface 11 of the padlock insertion space of the lock protective box body 6 and the lower end of the vertical portion 15 of the protective box lid 12 are also joined by welding. This makes it possible to manually insert a padlock into the lock protective box and lock it by passing the padlock's latch through the connection holes 3 and 8. The protective plate is joined to other protective plates by welding or the like, but only two protective plates are joined together, and there are two sets of these joined protective plates. These two sets of joined protective plates are connected with a padlock. In addition, the space created by the bottom surface 11 (Fig. 2) of the padlock insertion space of the lock protection box main body 6 and the ceiling portion 13, inclined portion 14, and vertical portion 15 (Fig. 3) of the padlock insertion space of the lid 12 is narrow, preventing the latch portion of the padlock from being cut by a cutting tool, etc. The size of the lock protection box main body 6 is approximately 100 mm in length, excluding the bottom surface 11 of the padlock insertion space, approximately 100 mm in width, and approximately 50 mm in height.

[0016] 4 is a schematic diagram of the main body in which the opening surface 16 of the lock protection box is placed in a direction approximately perpendicular to the protection plate 1 (FIG. 1). The lock protection box is joined to the ends of the protection plates 23 and 22 by welding or the like.

[0017] The cables from the solar panels of the photovoltaic power generation system are collected in a cable connection box or current collection box, and are input to a power conditioner where they are converted from DC power to AC power. Connect to commercial power. 5 is a schematic plan view of a cable theft prevention device for a photovoltaic power generation system. In the figure, protective plate 21 is placed in front of grid-connected power receiving equipment 19, and protective plate 20 is placed on the rear. Protective plates 1, 22, 23, and 24 are placed on all four sides of grid-connected power receiving equipment 19, protective plate 21, and protective plate 20. Protective plate 24 has the same shape as protective plate 1 shown in FIG. 1. Protective plates 22 and 23 have a shape without connection part 2 shown in FIG. 1, and protective plates 1 and 22 are joined by welding or the like. Protective plates 23 and 24 are also joined by welding or the like in the same manner.

[0018] The lock protective box 25 (in FIG. 5, the protective box 1 is placed with the opening of the lock protective box in the longitudinal direction of the protective plate 1) is joined to the protective plate 23 by welding or the like. The connection part 2 of the protective plate 1 is inserted into the lock protective box body through the insertion opening 10 of the lock protective box body. The connection hole 8 of the connection part 7 of the lock protective box 25 and the connection hole 3 of the connection part 2 of the protective plate 1 are joined with a padlock.

[0019] Furthermore, the lock protective box 26 (in Figure 5, the protective box 1 is placed with the opening of the lock protective box in the longitudinal direction of the protective plate) is joined to the protective plate 22 by welding or the like. The connecting portion 2 of the protective plate 24 is inserted into the lock protective box body through the insertion opening of the lock protective box body. The connecting hole of the connecting portion of the lock protective box 26 and the connecting hole of the connecting portion of the protective plate 24 are joined with a padlock.

[0020] FIG. 6 is a schematic diagram of a front view of an anti-theft device for a cable of a solar power generation device.

[0021] FIG. 7 is a schematic diagram of a right side view of an anti-theft device for a cable of a solar power generation device.

[0022] If the lock protection box is destroyed or the cable is cut, a light emitting lamp will emit light, an alarm will sound, and a device can be installed to notify the administrator of the solar power generation system.

[0023] The protective plates 1, 22, 23 and 24 and the lock protective boxes 25 and 26 are designed to move vertically as a whole, but by stopping their movement in the up and down direction with a separate beam or the like, they can be prevented from slipping out upwards.

[0024] If the distance between the front protective plate 23 and the rear protective plate 22 is large compared to the dimensions of the front and rear of the grid-connected power receiving equipment 19, adjustment can be made by placing polystyrene foam or the like between the protective plate 21 placed in front of the grid-connected power receiving equipment 19 and the grid-connected power receiving equipment 19.

[0025] The material for the protective plate and the protective box of the lock may be any material that is not easily broken, but steel is suitable from the viewpoint of workability. [Industrial Applicability]

[0026] The present invention makes it possible to prevent theft of cables from solar power generation devices, and is therefore of great industrial applicability. [Explanation of symbols]

[0027] 1: protective plate, 2: connection part, 3: connection hole, 4: welded part with other protective plates, 5: direction of protective box for lock, 6: main body of protective box for lock, 7: connection part of main body 6 of protective box for lock, 8: connection hole, 9: opening surface, 10: insertion port for inserting connection part 2 of protective plate 1, 11: bottom part of insertion space for padlock, 12: protective box lid for lock, 13: ceiling part of insertion space for padlock, 14: inclined part, 15: vertical part, 16: opening surface, 17: insertion port for inserting connection part 2 of protective plate 1, 18: connection part of main body 6 of protective box for lock, 19: grid-connected power receiving equipment, 20: protective plate to be placed on the back side of grid-connected power receiving equipment, 21: protective plate to be placed on the front side of grid-connected power receiving equipment, 22: protective plate, 23: protective plate, 24: protective plate, 25: protective box for lock, 26: protective box for lock

Claims

1. a protective plate joined to another protective plate at one end and having a connecting portion with a connecting hole disposed on a substantially vertical surface in the longitudinal direction of the plate at a position close to the other end; a protective box body having an insertion opening for inserting the connection part, in which a connection part having a corresponding connection hole is arranged so as to be connectable to the connection hole by a padlock, the normal direction of the connection hole being oriented toward the open surface; a lid for covering the protective box body; Therefore, A key protection box in which the two protective plates can be connected with a padlock.

2. a protective plate having a connecting portion that is joined to another protective plate at one end and has a connecting hole on a surface that is approximately perpendicular to the longitudinal direction of the plate at a position near the other end; a protective box body having an insertion port for inserting the connection part, a connection part having a corresponding connection hole that can be coupled to the connection hole with a padlock, and a normal direction of the connection hole that is arranged at a substantially right angle to the direction of the open surface; a lid for covering the protective box body; Therefore, A key protection box in which the two protective plates can be connected with a padlock.

3. Protective plates installed before and after the grid-connected power receiving equipment; A protective plate arranged on four sides surrounding the grid-connected power receiving equipment and the protective plate, and two adjacent pairs joined together; The key protection box according to claim 1 or claim 2, which is disposed at a diagonal position that is an end of the protection plate that is not joined, and This is a photovoltaic cable theft prevention device.

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