KR101787729B1 - Portable power generator - Google Patents

Abstract

A portable power generator is disclosed. The portable generator includes a charging part for receiving power from at least one of a plurality of energy providing parts, and a control part for calculating charging efficiency based on the received power. One of the plurality of energy providing parts is selected based on the charging efficiency. The one of the plurality of energy providing parts is a photovoltaic power generation unit that generates electricity by using sunlight and provides the electricity to the charging part. Power generation or electric power charging can be efficiently performed in accordance with an external environment.

Description

[0001] PORTABLE POWER GENERATOR [0002]

The present invention relates to a portable power generation device.

In recent years, the number of modern people has increased with the improvement of income level and fishing, mountain climbing and other leisure activities. If outdoor activity, including accommodation, is ongoing for leisure activities, electricity use may be essential.

On the other hand, in the event of a sudden change in weather during leisure activities, it is necessary to secure power for survival even if it is isolated in a remote area or a natural disaster such as a typhoon, earthquake or flood occurs.

Many portable power generation devices have been developed. BACKGROUND ART [0002] Conventional power generation devices include a power generation device using solar light, a power generation device using wind power, and the like.

However, the conventional power generation apparatuses can not generate electricity in an environment where there is no energy source such as sunlight or wind, and even if there is an energy source, it is impossible to know which energy source can produce the best efficiency. Therefore, There is a problem that it is wasted.

The background technology of the present application is disclosed in Korean Patent Registration No. 10-1645548 (filed on Jul. 29, 2016).

It is an object of the present invention to provide a portable power generating apparatus capable of effectively performing power generation or electric power charging in various external environments according to the external environment.

It should be understood, however, that the technical scope of the embodiments of the present invention is not limited to the above-described technical problems, and other technical problems may exist.

As a technical means for accomplishing the above technical object, there is provided a portable apparatus for performing power generation, comprising: a charging unit that receives power from at least one of a plurality of energy delivering units; and a control unit that calculates charging efficiency by the supplied power Wherein one of the plurality of energy deliveries is selected based on the charging efficiency, and one of the plurality of energy deliveries includes a solar power generating unit Lt; / RTI >

According to an embodiment of the present invention, the control unit collects the position information of the apparatus and the time information of the power generation, and calculates the position of the solar power generator based on the position change of the sun corresponding to the time information at the position of the apparatus. The charging efficiency by the unit can be calculated.

According to an embodiment of the present invention, there is further provided a communication unit for transmitting location information and time information of the apparatus to outside, receiving weather information corresponding to location information of the apparatus and time information from outside, The information includes information on the type of cloud, the amount of clouds, and the trend of cloud change, and the control unit can calculate the charging efficiency of the solar power generation unit in consideration of the weather information.

According to one embodiment of the present invention, the control unit can calculate the charging efficiency by the solar power generation unit in consideration of the actual development amount of the solar power generation unit for a predetermined time.

According to one embodiment of the present invention, the other of the plurality of energy deliveries is a manual power generation unit, and when the power generation by the manual power generation unit progresses, It is possible to calculate the charging efficiency by the power supplied from the power generation unit.

According to one embodiment of the present invention, the other of the plurality of energy deliveries is an external battery, and the control unit controls the supply of power from the external battery in consideration of the charging speed by the external battery when the external battery is connected to the charging unit. The charging efficiency by the received power can be calculated.

The above-described task solution is merely exemplary and should not be construed as limiting the present disclosure. In addition to the exemplary embodiments described above, there may be additional embodiments in the drawings and the detailed description of the invention.

According to an aspect of the present invention, power can be supplied from at least one of a plurality of energy delivering units, and power generation or power charging can be efficiently performed even in various external environments.

In addition, according to the above-described problem solving means of the present invention, each charging efficiency by the power supplied from the plurality of energy providing units is calculated and provided to the user, so that the portable power generating unit Device can be provided.

Further, according to the above-mentioned problem solving means of the present invention, it is possible to provide a portable power generating apparatus that more accurately provides expected charging efficiency by calculating the charging efficiency based on the sun position change or weather information.

1 is a block diagram showing a configuration of a portable power generation apparatus according to an embodiment of the present invention.
2 is a view showing an embodiment utilizing a solar power generation unit according to an embodiment of the present invention.
FIG. 3 is a diagram illustrating an embodiment in which a weather parameter according to an embodiment of the present invention is reflected.
4 is a diagram illustrating an embodiment of receiving power from an external battery according to an embodiment of the present invention.
5 is a view illustrating an embodiment of receiving power from a manual power generating unit according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. It should be understood, however, that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, the same reference numbers are used throughout the specification to refer to the same or like parts.

Throughout this specification, when a part is referred to as being "connected" to another part, it is not limited to a case where it is "directly connected" but also includes the case where it is "electrically connected" do.

It will be appreciated that throughout the specification it will be understood that when a member is located on another member "top", "top", "under", "bottom" But also the case where there is another member between the two members as well as the case where they are in contact with each other.

Throughout this specification, when an element is referred to as "including " an element, it is understood that the element may include other elements as well, without departing from the other elements unless specifically stated otherwise.

1 is a block diagram showing a configuration of a portable power generation apparatus according to an embodiment of the present invention.

Referring to FIG. 1, the portable power generation apparatus 100 may include a charging unit 120 and a control unit 130.

The charging unit 120 may receive power from at least one of the plurality of energy providing units 110. The plurality of energy providing units 110 may be various units for generating electric power from an energy source or providing electric power including external electric power or the like.

Illustratively, the energy provider 110 may be a unit that self-generates power based on an energy source such as the sun, manual power, and the like. For example, any one of the energy providing units 110 may be a solar power generating unit that generates electricity by using sunlight and provides the electricity to the charging unit 120. The solar power generation unit may include a solar panel to generate electric power based on sunlight.

As another example, the other one of the energy providing units 110 may be a manual power generating unit that generates power using manually generated power. The manual power generation unit may have a power-based power generation motor and, if the power is manually supplied by the user, power can be generated based thereon.

However, the energy providing unit 110 is not limited to the above-described energy source and the embodiment. For example, the energy providing unit 110 may be a unit that generates electricity from various energy sources such as a wind power generating unit using wind power.

In addition, the other one of the plurality of energy supplies 110 may be an external battery. Illustratively, the external battery may be a vehicle battery. However, the present invention is not limited thereto, and the energy supplier 110 may be various devices or units capable of supplying electric power to the portable power generation apparatus 100. For example, the external battery may be a rechargeable portable rechargeable battery a plurality of times, a rechargeable battery included in various mechanical devices, and the like.

The portable power generation apparatus 100 may include at least one of a plurality of energy providing units 110.

The charging unit 120 may include a connection port corresponding to each of the plurality of energy providing units 110 to receive the power supplied from the energy providing unit 110. [ Illustratively, the charger 120 may include a photovoltaic power connection port for receiving and storing the power generated in the photovoltaic power generation unit. In addition, the charging unit 120 may include a manual power connection port for receiving and storing power generated from the manual power generation unit. In addition, the charging unit 120 may include an external battery connection port for receiving and storing power from an external battery.

The control unit 120 may calculate the charging efficiency based on the power supplied from at least one of the plurality of energy delivering units. The charging efficiency may be a value obtained by quantifying the amount of electric energy (electric energy) charged per unit time. In addition, the charger 120 may include a battery in which the power supplied from the energy supplier 110 is stored (charged). The battery is preferably a rechargeable battery a plurality of times. For example, the battery unit may be a lithium ion battery, a polymer battery, a lithium iron phosphate battery, a lead battery or the like, but is not limited thereto.

According to one embodiment of the present invention, one of the plurality of energy supplies 110 may be selected based on the charging efficiency calculated by the control unit 130. [ More specifically, the control unit 130 may provide the user with information on the charging efficiency of each of the plurality of energy providing units 110. The user can directly select any one of the plurality of energy providing units 110 for charging based on the charging efficiency for each of the energy providing units 110. [ For example, the user may select charging by the energy provider 110 that is expected to have the highest (highest) charging efficiency. In another example, the user may select charging by the energy supplier 110, which is considered to be more convenient to use, although the charging efficiency is second, but does not differ greatly from the first rank. The control unit 130 may control the energy providing unit 110 and the charging unit 120 so that the battery is charged by the energy supplier 110 selected by the user.

For example, the control unit 130 can recommend or directly select any one of the energy providing units 110 having a relatively high charging efficiency among the charging efficiencies calculated from the plurality of energy providing units 110. [ When the controller 130 selects itself, the controller 130 may control the energy supplier 110 and the charger 120 so that the battery is charged by the energy supplier 110 selected by the controller 130 itself.

The portable power generation apparatus 100 may include a communication unit 140. The control unit 130 may transmit the information on the energy providing unit 110 and the respective charging efficiencies through the communication unit 140. The communication unit 140 may communicate with the user terminal to transmit information on the energy providing unit 110 and each charging efficiency and may receive a response from the user regarding the selection of the energy providing unit 110 and the like. In addition, the communication unit 140 can receive information that can be utilized for charging efficiency calculation from the outside. This will be described later.

The user terminal is a device that interlocks with the portable power generation apparatus 100 via a network and can be a device such as a smartphone, a smart pad, a tablet PC, a wearable device, a personal communication system (PCS) System for Mobile communication), PDC (Personal Digital Cellular), PHS (Personal Handyphone System), PDA (Personal Digital Assistant), IMT (International Mobile Telecommunication) -2000, CDMA (Code Division Multiple Access) W-Code Division Multiple Access), Wibro (Wireless Broadband Internet) terminals, and fixed terminals such as desktop computers and smart TVs.

In addition, the portable power generation apparatus 100 may include an information notification unit 150. The control unit 130 may provide the information on the energy providing unit 110 and the respective charging efficiencies to the user through the information notifying unit 150. [ The information announcement unit 150 may include, for example, a display panel, a digital seven-segment, and a ten-segment LED. However, the information notifying unit 150 is not limited to the above embodiments.

Illustratively, the information informing unit 150 may display the charging efficiency of the energy providing unit 110 through the display panel. As another example, the voltage of the battery part being charged can be displayed through the digital seventh segment. As another example, the information informing unit 150 can graphically display the charged amount of the battery unit through the 10-segment LED. As described above, the information notifying unit 150 can visually provide the charging efficiency, the voltage of the battery unit, and the charging amount to the user.

The process of calculating the charging efficiency in the controller 130 will be described with reference to FIG. 2 through FIG.

2 is a view showing an embodiment utilizing a solar power generation unit according to an embodiment of the present invention. Referring to FIG. 2, the portable power generation apparatus 100 can receive power generated from the solar power generation unit 111, which is one of the plurality of energy providing units 110.

On the other hand, the controller 130 may collect positional information of the portable power generation device 100 and time information of power generation. In order to calculate the charging efficiency in consideration of the position and time of the portable power generation apparatus 100. The portable power generation apparatus 100 may include a position detection sensor for sensing the position of the portable power generation apparatus 100. [ The position sensing sensor may be, for example, a GPS sensor. In addition, the portable power generation apparatus 100 may include a time measurement unit for time measurement. The controller 130 may receive position information from the position sensor. Also, the control unit 130 may receive time information from the time measurement unit. As another example, the control unit 130 may receive the position information and the time information from the outside via the communication unit 140. The outside may be, for example, a user terminal or a server interlocked with the portable power generation apparatus 100.

 The control unit 130 can calculate the charging efficiency (power generation efficiency) by the solar power generation unit 111 based on the positional change of the sun corresponding to the time information at the position of the portable power generation apparatus 100. [ Here, the positional change of the sun may be a positional change in accordance with the altitude change of the sun and the azimuthal angle change. Illustratively, the control unit 130 can calculate the position of the sun based on the current time. Further, it is possible to calculate the positional change of the sun corresponding to the range of the time based on a predetermined range of time (for example, several hours from the current time). Here, the predetermined time range may be set by the user or may be set in consideration of the rechargeable capacity of the charger 120. As another example, the control unit 130 may receive information on the position of the sun or the position of the sun from the outside through the communication unit 140.

The control unit 130 may calculate the position change of the sun on the basis of the positional information and the time information obtained as described above, and calculate the charging efficiency by the solar power generation unit 111 based thereon. When the user is provided with the charging efficiency information by the solar power generation unit 111 from the portable power generation apparatus 100, the user can secure the charging efficiency when the solar power generation unit 111 is disposed at any azimuth and height, Information can be provided together. For example, when the user wishes to charge the solar power generation unit 111 for four hours from 1:00 pm, the solar power generation unit 111 must be arranged in correspondence with the altitude a and the azimuth angle b, The additional information can be provided.

In this connection, the portable power generation apparatus may include an azimuth correspondence information providing unit (for example, a compass) for providing azimuth related information to the user. That is, when the control unit 130 informs the user of the additional information, the user can refer to the azimuth corresponding information providing unit to set or change the direction (azimuth angle) viewed by the solar power generation unit 111 .

In addition, the portable power generation apparatus 100 may have a rotation drive unit in which the solar power generation unit 111 actively provides tracking corresponding to the sun azimuth angle. For example, the rotation drive unit may be provided in the form of a rotation drive support plate, and the solar power generation unit 111 may be disposed on the support plate and rotated together with the rotation of the support plate. The control unit 130 can control the rotation drive unit such that the direction in which the solar power generation unit 111 is heading corresponds to the azimuth angle of the sun based on the above-described change in the sun position. The control unit 130 may rotate the solar power generation unit 111 to view the direction corresponding to a certain azimuth angle during the time required for charging so that solar power can be generated at the maximum efficiency and the charging can be performed. The control unit 130 may control the rotation drive unit based on the calculation result.

The communication unit 140 can transmit the position information and the time information of the portable power generation apparatus 100 to the outside. Further, the communication unit 140 can receive weather information corresponding to the location information and time information of the portable power generation apparatus 100 from an external (e.g., weather station database or the like).

According to one embodiment of the present invention, the portable power generation apparatus 100 can calculate the charging efficiency in consideration of weather information during charging using solar light. For example, the weather information may include information about trends in cloud changes.

FIG. 3 is a diagram illustrating an embodiment in which a weather parameter according to an embodiment of the present invention is reflected.

Referring to FIG. 3, the weather factors affecting the amount of sunshine may be varied. Among them, clouds can have the greatest influence on the amount of sunshine. Accordingly, the portable power generation apparatus 100 can reflect the cloud change trend in the charging efficiency calculation. The information on the cloud change tendency may include the type of cloud, the amount of cloud, the speed of cloud movement, and the like. There are various kinds of clouds, and each cloud can have different characteristics. Since each cloud has different thickness, shape, formation time, disappearance time, and light transmission amount depending on the type of cloud, it is necessary to reflect the cloud change trend incorporating such a stochastic variable into the charging efficiency calculation.

The control unit 130 may calculate the charging efficiency of the solar power generation unit 111 in consideration of the weather information.

Fig. 2 is a view showing a state without clouds, and Fig. 3 is a view showing a state where clouds are present. Referring to FIGS. 2 and 3, if the probability that a thick cloud exists in the weather information is 80% and the probability of occurrence of a cloud having a normal thickness is 20%, the control unit 130 calculates a cloudless state The calculated charging efficiency (a) is calculated by taking both the charging efficiency reduction rate (m%) in the presence of a thick cloud and the charging efficiency reduction rate (n% 100% -m%) x80% + ax (100% -n%) x20%). In addition, the controller 130 may calculate the corrected charging efficiencies for each predetermined time interval in consideration of the trend of the cloud change over time, and calculate the overall charging efficiency during the charging time.

As another example, the controller 130 may calculate the charging efficiency considering only the variable having the lowest charging efficiency among the variables having the predetermined probability or more. For example, if the probability of existence of a thick cloud is 5%, the probability of existence of a cloud having a normal thickness is 45%, the probability of cloud is 50%, and the probability of the predetermined probability is set to 40% A thick cloud case, which is a cloud variable corresponding to probability, is a cloud of moderate thickness corresponding to a cloud variable expected to have the lowest charging efficiency among the cloud variables having a probability of 40% or more, The charging efficiency can be calculated on the basis of the present case. In this way, the controller 130 calculates the charging efficiency on the basis of the case where the charging efficiency is the lowest among the variables having the probability of occurrence being at a minimum, except for the variables whose probability of occurrence is less than a predetermined value, )can do. Accordingly, the charging efficiency by the solar power generation unit 111 calculated by the control unit 130 can be reduced from being calculated more than the actual charging efficiency, and a more reliable prediction result can be provided.

The control unit 130 can calculate the charging efficiency (power generation efficiency) by the solar power generation unit 111 in consideration of the actual development amount of the solar power generation unit 111 for a predetermined time. The control unit 130 may receive information on the actual charge amount (actual charge efficiency) by the power supplied from the solar power generation unit 111 for a predetermined time from the current time from the charging unit 120. [ The control unit 130 can further increase the accuracy in the charging efficiency calculation based on the information on the actual charging amount (actual charging efficiency). For example, the control unit 130 can calculate the charging efficiency assuming that the power generation efficiency (charging efficiency) specified in the official product specification (specifications) of the corresponding solar power generation unit 111 is the actual power generation efficiency. Also, the control unit 130 can calculate the charging efficiency assuming that the corresponding solar power generation unit 111 is actually disposed corresponding to the azimuth or elevation showing the maximum power generation efficiency. However, in actuality, foreign matter adheres to a part of the surface of the solar power generation unit 111 so that the power generation efficiency is lowered, or the user places the solar power generation unit 111 slightly shifted from the optimum direction, The efficiency may be lowered. That is, the control unit 130 can compare the calculated charging efficiency with the actual charging efficiency, thereby correcting the charging efficiency calculated by the control unit 130 to be closer to actuality. In addition, the controller 130 may further correct the thus corrected charging efficiency through the above-described determination based on the weather information, thereby predicting the charging efficiency (charging amount) for the set time for charging with higher accuracy. That is, the controller 130 can more accurately compensate the theoretically calculated charging efficiency by combining at least one of the actual charging efficiency and the weather information.

4 is a diagram illustrating an embodiment of receiving power from an external battery according to an embodiment of the present invention.

When the external battery is connected to the charging unit 120, the control unit 130 may calculate the charging efficiency based on the power supplied from the external battery in consideration of the charging speed by the external battery. Referring to FIG. 4, the external battery may be a battery unit 31 provided in the vehicle 30. Illustratively, the charger 120 can be directly connected to the battery unit 31 inside the vehicle through an external battery connection port. As another example, the charger 120 may provide power from the cigar jack of the vehicle to the charger 120 via the external battery connection port.

 Illustratively, the controller 130 may measure the amount of charge (charge efficiency) due to the power supplied from the battery unit 31 for a predetermined period of time from the present time. By measuring the actual charge amount in this manner, more reliable charging efficiency comparison can be made. As another example, the portable power generation apparatus 100 may receive the charging efficiency of the external battery directly from the user.

5 is a view illustrating an embodiment of receiving power from a manual power generating unit according to an embodiment of the present invention.

The controller 130 may calculate the charging efficiency based on the power supplied from the external battery in consideration of the charging speed of the manual power generating unit 112 when the power generation by the manual power generating unit 112 progresses. 5, when the user rotates the lever (handle) of the manual power generation unit 112, the power generation motor 112 is driven, and power can be generated based on the generated power. The power generated by the manual power generation unit 112 may be supplied to the charging unit 120 through the manual power generation connection port. 5, a main part such as a power generating motor of the manual power generating unit 112 may be disposed inside the case of the portable power generating unit, and the lever may be provided so as to be exposed to the outside of the case so that the user can rotate the lever.

Illustratively, the controller 130 may measure the amount of charge (charge efficiency) due to the power supplied from the manual power generation unit 112 for a predetermined period of time from the present time. By measuring the actual charge amount in this manner, more reliable charging efficiency comparison can be made. As another example, the portable power generation apparatus 100 may receive the charging efficiency of the manual power generation unit 112 directly from the user. For example, it is possible to directly receive the lever rotation prediction value or target value per minute from the user, and calculate the charging efficiency based on the input.

The portable power generation apparatus 100 may have an interface corresponding to an electronic device using electric power so that the electric power stored in the battery unit can be used for a purpose desired by the user. For example, the portable power generation apparatus 100 may include an interface (for example, an inverter) that converts the power stored in the battery section to AC power to provide it. Further, it may include an interface (for example, a rectifier) that converts AC power supplied from the outside into electric power that can be used for charging. At this time, the converted power may be stored in the battery unit. In addition, the portable power generation apparatus 100 is provided with a USB port, and can provide power (for example, 5 V) corresponding to the USB environment. In addition, a plurality of the above-described interfaces may be provided to supply power to various electronic devices. In addition, the portable power generation apparatus 100 may include a power supply terminal unit 160. Referring to the drawing, the power charged in the charging unit 120 through the power supply terminal unit 160 may be supplied to an external device connected to the power supply terminal unit 160. For example, the power supply terminal portion 160 may be a 220V power supply terminal.

In addition to the above-described embodiments, the portable power generation apparatus 100 may provide power corresponding to each electronic apparatus, and may have various types of interfaces for supplying power to each electronic apparatus. The portable power generation apparatus 100 may include a power control unit for controlling (for example, turning on / off) the power of the portable power generation apparatus 100. [

Further, the portable power generation apparatus 100 may include a case (housing). For example, the case may be an iron case. Referring to FIG. 5, the information notification unit 150 and the power terminal unit 160 may be exposed and disposed on the front surface of the case. Also, though not shown in the drawing, various connection ports (for example, a photovoltaic connection port, an external battery connection port, a manual power connection port, and the like) may be exposed and disposed on the rear surface of the case. In addition, the case may include a cover that can be opened and closed. The solar cell unit 111 can be stored in a predetermined space provided therein by opening the cover illustratively. Illustratively, the solar power generation unit 111 may be a portable solar panel, such as a folding solar panel.

In addition, the term "portable" in the portable power generation apparatus 100 of the present application is not narrowly limited only in the form of a portable device that can be easily carried. In other words, it is desirable that the portable power generation apparatus 100 of the present invention is understood as a broad concept device that can be carried by several persons or to a scale of a device capable of being carried by simple carrying equipment.

It will be understood by those of ordinary skill in the art that the foregoing description of the embodiments is for illustrative purposes and that those skilled in the art can easily modify the invention without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

10: The sun
20: Cloud
30: vehicle
31: Battery unit
100: Portable generator
110: Energy supply
111: Photovoltaic power generation unit
112: Manual power generation unit
120:
130:
140:
150: Information notification part
160: power supply terminal portion

Claims (6)

In a portable device for performing power generation,
A charging unit that receives power from at least one of a plurality of energy deliveries;
A communication unit that transmits location information and time information of the device to the outside and receives weather information corresponding to the location information of the device and the time information from outside; And
And a control unit for calculating a charging efficiency based on the supplied power,
The plurality of energy providing units include a solar power generating unit, a manual power generating unit, and an external battery, which generate electricity by using sunlight and provide the power to the charging unit,
Wherein the weather information includes information on a cloud change trend that includes information on the probability that each cloud exists according to a type of cloud for each time period,
Wherein the controller calculates a corrected charging efficiency of the solar power generation unit based on the calculated charging efficiency based on the assumption that the cloud is absent and the charging efficiency reduction rate for each type of cloud, Lt; / RTI >
The corrected charging efficiency is calculated on the basis of a cloud case having the lowest charging efficiency among the cloud cases having a probability of the predetermined probability or more, except for the cloud cases having a probability that the respective clouds exist less than a predetermined probability ,
The actual charging efficiency of the manual power generation unit calculated by advancing the power generation by the manual power generation unit and the actual charging efficiency of the manual power generation unit calculated by connecting the external battery to the charging unit, Wherein the information on the actual charging efficiency of the battery is provided to the user so that the user can directly select any one of the plurality of energy deliveries for charging based on the information. The method according to claim 1,
Wherein the control unit collects the position information of the apparatus and the time information of the power generation and calculates the charging efficiency by the solar power generation unit based on the positional change of the sun corresponding to the time information at the position of the apparatus A portable power generation device. delete 3. The method of claim 2,
Wherein the control unit calculates the charging efficiency by the solar power generation unit in consideration of an actual amount of development of the solar power generation unit for a predetermined time. delete delete

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