Portable power supply device utilizing photovoltaic power generation panel

Abstract

To provide a portable AC 100 bolt power supply device for supplying AC 100 bolt power to an electric power tool in a new building construction site.SOLUTION: An AC 100 bolt power supply device consists of a photovoltaic power generation panel → a battery → a DC-AC inverter device. The photovoltaic power generation panel is mounted by utilizing a scaffold installed in a new building site. The device which charges a battery with the photovoltaic power generation panel is provided, thereby smoothly using an electric power tool, an electric saw, an electric drill, etc., to be used in the new building construction site.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a portable power supply device that provides a 100 volt AC power source for power tools used on construction sites and the like. [Background technology]

[0002] At new construction sites, there are situations where a temporary utility pole is set up to supply 100 volt AC power for power tools, and instead of applying to the power company to run a 100 volt AC cable, a 100 volt AC cable is run from the power company's existing utility pole, and an outdoor 100 volt AC power box is set up on the temporary utility pole, with power tools (such as electric circular saws and electric drills) plugged into the outlets in the power box and used.

[0003] As an alternative, a commercially available gasoline engine portable generator is brought to a new construction site as a portable 100 volt AC power source and used as a 100 volt AC power source.

[0004] As a solution to the problem of drawing in a temporary 100-volt AC power source at a new construction site, patent document 1 has been filed, which describes a method of using a portable power supply device.

[0005] Furthermore, patent documents 2 and 3 have been filed as applications for mobile 100 volt AC power supplies. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Publication No. 3034655 [Patent Document 2] Patent No. 287716 [Patent Document 3] JP 2019-73136 A Summary of the Invention [Problem to be solved by the invention]

[0007] FIG. 1 is a diagram for explaining a conventional method of supplying 100 volt AC power by installing a temporary utility pole 3. This is a method of supplying 100 volt AC power through an electric wire 5 from an existing utility pole 4 of an electric power company. Scaffolding 2 has been set up around the newly constructed building 1. The setup of scaffolding is essential for the smooth and efficient progress of roofing work, exterior wall work, and other construction work. In addition, electric tools are mainly used for indoor construction work to carry out the work efficiently. To use electric tools, an AC 100 volt power source is essential. An outdoor power supply box 6 is attached to the temporary utility pole 3. The power cord of an electric tool, an electric saw 7, can be plugged into an outlet in the power supply box 6 to use the electric saw 7.

[0008] Patent Document 1 provides a method for drawing in a temporary AC 100 volt power source at a new construction site and using the battery DC voltage in combination with a DC-AC inverter device, thus solving the problems of using batteries. The invention is characterized by its device that allows multiple batteries to be charged together with a dedicated charger in case the battery capacity runs out.

[0009] Patent Documents 2 and 3 disclose a mobile power supply system that combines a solar panel, a battery, and an inverter device to form an AC 100 volt power supply device. AC 100 volt power is supplied by loading multiple solar panels onto a vehicle or by installing multiple solar panels on the roof of a trailer. Patent Documents 2 and 3 are intended to provide emergency power sources in the event of a disaster, and are therefore not suitable for the large, compact portable power supply devices required at new construction sites.

[0010] The most common portable power supply device is the gasoline engine generator, but it has drawbacks such as noise pollution, exhaust gas emissions, the need to frequently refill gasoline, and the risk of fire. In addition, gasoline engine generators with the output capacity required for AC 100 volt power supplies at new construction sites, etc., weigh about 70 kg and have an external capacity of about 100 liters, making them difficult to move.

[0011] In view of the above, an object of the present invention is to provide a portable power supply device that is compact, easy to use on-site, and highly safe as it does not use flammable gasoline as in gasoline engine generators. [Means for solving the problem]

[0012] The present invention has been made in view of the above problems, and in a first aspect, a battery and an inverter device are combined to form an AC 100 volt power supply device. In this aspect, it is preferable to use a lithium iron phosphate battery as the battery. Recently, small, high-capacity lithium iron phosphate batteries and high-output DC-AC inverter devices have become commercially available at low prices. Compared with the gasoline engine portable generator described above, it is possible to form a device with the same output capacity but half the weight and volume.

[0013] In the second aspect, a method is adopted in which solar panels are used to charge the battery. is.

[0014] The third perspective is to hook the solar panels onto the scaffolding pipes at the construction site. The method used is as follows:

[0015] The fourth aspect is aimed at preventing the theft of the portable power supply device. Specifically, it utilizes a GPS location information system to enable tracking and recovery of the device after it has been stolen. Effect of the Invention

[0016] By doing so, a portable AC having the following features that overcome the above problems is obtained. It provides a 100 volt power supply. (Feature 1) Since the use of temporary utility poles does not require the cumbersome application procedures to be submitted to the power company, on-site work can be carried out quickly. (Feature 2) Gasoline engine portable generators have drawbacks such as noise pollution, exhaust fumes, and the need for a gasoline supply. They are also heavy and large, which poses the risk of fire. The portable power supply device of the present invention can use lithium iron phosphate batteries as its batteries, making it possible to reduce the capacity and weight to about half that of gasoline engine-powered portable generators. In addition, there are no problems with noise, exhaust gas, or fires. Because it uses solar panels, it can be kept constantly charged. There is no need to frequently refill the gasoline engine as with gasoline engine portable generators. (Feature 3) The solar panels are installed by hanging them on pipes used for assembling scaffolding at the construction site. The scaffolding will remain up until the new building construction is complete, so there are no issues with installing the solar panels. (Feature 4) The battery capacity must be about 200Ah (12V DC). The solar panel size must be 1800 x 900 (about the size of 1 tatami mat, 200W output). (Feature 5) The structure is designed to house a GPS location transmitter, making it possible for the system to track and recapture the item in the event of a theft. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a configuration diagram illustrating a conventional system. [Diagram 2] FIG. 1 is a configuration diagram illustrating the present invention. [Diagram 3] In Figure 2, the solar panels were installed on a single-tube pipe in a way that maximized power output. [Figure 4] FIG. 11 is a configuration diagram for explaining a second embodiment of the present invention. BEST MODE FOR CARRYING OUT THEINVENTION

[0018] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Example 1

[0019] FIG. 2 is a block diagram illustrating a method of using a portable power supply device 21 according to a specific embodiment of the present invention. The portable power supply device 21 is brought to the construction site. The electric saw 7 can be used by inserting a plug into the output of the portable power supply device, into a socket. The electric power supplied by the portable power supply device is AC 100V.

[0020] In this embodiment, the construction site is not particularly limited, and examples include the construction of a new house, cleaning of graves with a high-pressure washer, power supply to lighting fixtures on a food stall, power supply to hot plates or lighting fixtures at a campground, etc.

[0021] In addition, in this embodiment, the battery used may be, for example, a lithium iron phosphate ion battery, a nickel-metal hydride battery, or a manganese battery. However, it is preferable to use a lithium iron phosphate ion battery, as this allows the capacity and weight to be about half that of a gasoline engine portable generator.

[0022] Furthermore, the capacity of the battery used in this embodiment is not limited as long as the effects of the present invention are achieved, but a minimum capacity of about 200 Ah (12 volts DC) is required.

[0023] The output of the solar panel used in this embodiment is not limited as long as the effects of the present invention are achieved, but is preferably 200 W or more. The size of the solar panel is not limited as long as it can be attached to the scaffolding pipe, but is preferably 1800 mm x 900 mm or more in panel area.

[0024] Here, scaffolding pipes are used to secure a working platform at high altitudes at construction sites, and can be connected or combined together to form a construction scaffold by hanging scaffolding boards on them.

[0025] In addition, when attaching the solar panels to the scaffolding pipes, it is preferable to attach them securely so that they do not fall during work. Specifically, a single pipe clamp is used. It is preferable to attach it using a fixing bracket (indicated by a ● mark 46 in Figure 4).

[0026] In this embodiment, the DC-AC inverter device is capable of converting the power output (DC) from the solar power generation panel 22 into alternating current 100V (AC100V).

[0027] As described above, the present invention makes it possible to provide a portable power supply device that is compact, can be easily used on-site, and is highly safe as it does not use flammable gasoline as does a gasoline engine portable generator.

[0028] Fig. 3 shows an example of an improvement over the first embodiment, which is an improvement to increase the power output of the solar power generation panel 22. Single pipes 41, 42, 43, 44, and 45 are added to adjust the angle of the solar power generation panel so that it is perpendicular to the sun. This makes it possible to extract the maximum amount of power generated from the solar power generation panel.

[0029] In Fig. 3, the cable from the solar panel is tied along a single pipe with a cable tie 47 and connected to the portable power supply unit 21. This was devised so that it would not get in the way when working on scaffolding. Example 2

[0030] The second embodiment is similar to the first embodiment, but is different in that a GPS transmitter is provided. A GPS transmitter 31 is stored in the portable power supply device 21. A signal from the GPS transmitter 31 is received by a GPS satellite 32 and delivered to a monitor 33 via the Internet network. The observer 33 can monitor the event using a monitor 34 or a mobile phone 35 . [Industrial Applicability]

[0031] This invention is explained using an example of use at a new construction site, but it can also be used when using home appliances that require a 100-volt AC power source outdoors, in mobile stores for festivals, evacuation facilities during disasters, construction and cleaning of graves, campsites, etc. This device can also be used as a 100-volt power source for the latest rechargeable power tools, rechargeable screwdrivers, chargers for smartphones, etc. [Explanation of symbols]

[0032] 1. Newly constructed buildings 2. Scaffolding at a construction site 6. Outdoor AC 100V Power Box 7. Electric saw 21 Portable AC 100V power supply 31 GPS transmitter 32 GPS satellites 33 Observer 34 Monitor 35 Mobile Phones

Claims

1. This portable power supply device provides power to a construction site using a battery and a DC-AC inverter device, and charges the battery using power generated by a solar power generation panel, the solar power generation panel being attached to a scaffolding pipe at the construction site.

2. 2. A portable power supply device according to claim 1, further comprising a GPS security device.

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