KR101867765B1 - Portable energy storing unit - Google Patents

Abstract

According to embodiments of the present invention, a portable energy storage device that provides various charging methods and various output methods can be provided. A portable energy storage device according to an embodiment of the present invention includes an internal battery for storing energy; An interface unit including a plurality of power input ports, a plurality of power output ports, an LED connection port for connecting an external LED device, and an external battery connection port for connecting an external battery; A display unit for displaying a state of the internal battery; A sensor unit for sensing a state of the internal battery; And a controller for determining an abnormality according to the state of the internal battery and adjusting a power output from the power output port.

Description

[0001] PORTABLE ENERGY STORING UNIT [0002]

The present invention relates to a portable energy storage device.

In order to operate the electronic device, a power supply device that supplies necessary voltage and current is used. Particularly, technologies for a portable power supply device for an electronic device used while being carried from the outside are being developed.

However, in the case of conventional portable power supply devices, it is general that only a single charging method is provided, resulting in inconvenience in use. In addition, in order to provide a large capacity, the equipment is heavy and has a short life span.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a portable energy storage device which is provided in a small size and light weight with respect to a capacity.

It is also an object of the present invention to provide a portable energy storage device that provides various charging methods and various output methods.

It is another object of the present invention to provide a portable energy storage device having various additional functions.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and the problems not mentioned can be clearly understood by those skilled in the art from the description and the accompanying drawings will be.

A portable energy storage device according to an embodiment of the present invention includes an internal battery for storing energy; An interface unit including a plurality of power input ports, a plurality of power output ports, an LED connection port for connecting an external LED device, and an external battery connection port for connecting an external battery; A display unit for displaying a state of the internal battery; A sensor unit for sensing a state of the internal battery; And a controller for determining an abnormality according to the state of the internal battery and adjusting a power output from the power output port.

The internal battery may be provided as a lithium iron phosphate battery.

The plurality of power input ports may include an AC power input port, a DC power input port converted from solar energy, and a cigar jack connection port for a vehicle.

The plurality of power output ports may include an AC power output port, a DC power output port, a USB connection port, and a vehicle cigar jack connection port.

The portable energy storage device may further include a power conversion unit for converting the DC power source and the AC power source.

The portable energy storage device may further include a radio unit driven by the internal battery.

The display unit may include a plurality of LEDs, and may display at least one of a state of charge of the internal battery and an abnormality of the internal battery.

Wherein the sensor unit measures a temperature, a load, a voltage, and an amount of stored energy of the internal battery, and the control unit is configured to control the internal battery when the amount of the load is equal to or greater than a predetermined amount, The power output to the power output port may be cut off when the amount of energy stored in the power output port is out of the set range and the amount of power output to the power output port may be reduced if the stored amount of energy is less than the predetermined amount of energy.

According to the embodiment of the present invention, it is possible to provide a portable energy storage device provided with a small size and a light weight in terms of capacity.

In addition, according to embodiments of the present invention, a portable energy storage device that provides various charging methods and various output methods can be provided.

In addition, according to the embodiments of the present invention, a portable energy storage device having various additional functions can be provided.

The effects of the present invention are not limited to the above-mentioned effects, and the effects not mentioned can be clearly understood by those skilled in the art from the present specification and attached drawings.

1 is a perspective view of a portable energy storage device according to an embodiment of the present invention.
FIGS. 2 to 5 are side views of the mobile energy storage device of FIG.
6 and 7 are views for explaining the interface of the portable energy storage device of FIG.
Figure 8 shows an exemplary solar cell that can be used in connection with the mobile energy storage device of Figure 1;
Figure 9 shows an exemplary LED bar that can be used in connection with the mobile energy storage device of Figure 1;
Figure 10 shows an exemplary connection cable that can be used in connection with the mobile energy storage device of Figure 1;
11 is an exemplary circuit diagram of a portable energy storage device according to an embodiment of the present invention.
12 is an exemplary circuit diagram provided inside the Solar control unit in FIG.

Other advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

Unless defined otherwise, all terms (including technical or scientific terms) used herein have the same meaning as commonly accepted by the generic art in the prior art to which this invention belongs. Terms defined by generic dictionaries may be interpreted to have the same meaning as in the related art and / or in the text of this application, and may be conceptualized or overly formalized, even if not expressly defined herein I will not.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. As used herein, the terms' comprise 'and / or various forms of use of the verb include, for example,' including, '' including, '' including, '' including, Steps, operations, and / or elements do not preclude the presence or addition of one or more other compositions, components, components, steps, operations, and / or components. The term 'and / or' as used herein refers to each of the listed configurations or various combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a portable energy storage device according to an embodiment of the present invention.

The portable energy storage device according to an embodiment of the present invention can be manufactured as shown in FIG.

According to one embodiment, the portable energy storage device is manufactured to 310 mm in width, 303 mm in height and 248 mm in height, and the manufactured portable energy storage device is provided with a weight of 23 kg, which is relatively lighter than the conventional products Device. However, the size and weight of the portable power supply device according to the present invention are not limited to those described above.

In a portable energy storage device according to an embodiment of the present invention, a lithium iron phosphate (LiFePO ₄ ) battery may be used as an internal battery.

Lithium iron phosphate batteries can provide higher energy density and higher rated current than common lead acid batteries and can contribute to providing portable energy storage devices according to the present invention as eco-friendly products.

According to one embodiment, the lithium iron phosphate battery provides 12.8 V, 70 Ah (896 Wh).

The lithium iron phosphate battery can be used for more than 2,000 cycles at a 100% DOD (Depth of Discharge), and can be guaranteed to have a life of four times or more as compared with a lead acid battery. In addition, the lithium iron phosphate battery can be used in a wide temperature range of -20 캜 to 70 캜.

Accordingly, even if the portable energy storage device according to an embodiment of the present invention is assumed to be charged and discharged every day, a long service life of 5 years or more can be guaranteed.

FIGS. 2 to 5 are side views of the mobile energy storage device of FIG.

Fig. 2 shows a front view of the portable energy storage device shown in Fig. As shown in FIG. 2, the portable energy storage device has an interface unit and a display unit on the front surface thereof. The interface portion will be described in more detail with reference to Figs.

Figs. 3, 4, and 5 respectively show the left side, rear side, and right side of the portable energy storage device shown in Fig.

As shown in FIGS. 1 to 5, the portable energy storage device according to an embodiment of the present invention includes a handle to improve portability. The portable energy storage device according to an embodiment of the present invention is provided with a light weight of 23 kg as compared with a large rated capacity of 1200 W, so that the portable energy storage device can be easily carried by the user using the handle.

6 and 7 are views for explaining the interface of the portable energy storage device of FIG.

6 and 7, a portable energy storage device according to an embodiment of the present invention includes a plurality of power input ports, a plurality of power output ports, an LED connection port for connecting an external LED device, An interface unit including an external battery connection port, and a display unit for displaying the state of the internal battery.

The plurality of power input ports may include an AC power input port AC, a DC power input port converted from solar energy (Solar DC), and a vehicle cigar jack connection port.

The AC power input port may be provided such that AC power of 220 V and 60 Hz can be input. The AC power input port may be provided so that the household power supply can be input. Therefore, the portable energy storage device according to an embodiment of the present invention can easily charge even a household power source.

The direct current power input port converted from the solar energy may be provided such that a power of 12V, 300W (100 x 3W) is input. The direct current power input port converted from the solar energy can be connected to the solar cell as shown in FIG. 8 to receive the direct current power.

A cable as shown in FIG. 10 is connected to the plurality of power input ports and the plurality of power output ports to connect other devices with the portable energy storage device.

The vehicle cigar jack connection port is provided so that the mobile type power source device can be charged with the vehicle battery. Conversely, the vehicle cigar jack connection port can also be used as a power output port, so that the vehicle battery can be charged by the portable energy storage device. According to one embodiment, a vehicle cigarette input / output port may be provided to allow input / output of a power of up to 12V, 30A.

As described above, the portable energy storage device according to an embodiment of the present invention can provide various charging methods because it can use both solar power source, vehicle battery, and household electricity.

The AC power input unit can input 220V, 60Hz, and 1200W. In addition, a DC power input unit capable of inputting power of 12V and 30A can be provided separately.

The portable energy storage device according to an embodiment of the present invention may include a radio unit. The radio unit can be driven by the internal battery, and the user can listen to an emergency disaster broadcast or the like by using the radio.

According to one embodiment, the portable energy storage device includes a control unit. The control unit may control supply or use voltage by using pulse width modulation control in the same manner as a PWM converter.

The portable energy storage device may include a sensor unit for sensing the state of the internal battery. The sensor unit may measure the temperature, load, voltage, and stored energy amount of the internal battery.

The control unit may shut off the power output to the power output port when the temperature is equal to or higher than a predetermined temperature, when the amount of the load is equal to or more than a predetermined amount, and when the voltage is out of a predetermined range. Also, the controller may reduce the magnitude of the power output to the power output port when the stored energy amount is equal to or less than a predetermined energy amount.

The function of the control unit is not limited thereto, and the portable energy storage device may perform additional functions for protecting the battery in the low voltage, the overvoltage, and the overdischarge.

The interface unit may include an LED connection port for connecting an external LED device so that the portable energy storage device can be used even in a dark place. For example, an LED bar as shown in FIG. 9 may be connected to the LED connection port.

The portable energy storage device may further include a display unit for displaying at least one of a battery charging state and an abnormality of the internal battery. The display unit may include a plurality of LEDs. For example, the ratio of the LEDs turned on among the plurality of LEDs may indicate the internal battery charge amount. Alternatively, it is possible to indicate whether the internal battery is abnormal by, for example, blinking of the LED.

The portable energy storage device may further include a power converting unit for converting a DC power source and an AC power source into each other. The power conversion unit may include an inverter. Referring to FIG. 6 again, the portable energy storage device may include a switch for controlling on / off of the inverter on an external interface.

11 is an exemplary circuit diagram of a portable energy storage device according to an embodiment of the present invention.

According to one embodiment, the portable energy storage device may be constituted by a circuit in which the input / output ports are connected as shown in FIG.

12 is an exemplary circuit diagram provided inside the Solar control unit in FIG. According to one embodiment, the portable energy storage device can convert solar power to a power source that can be input to the power input port according to the conversion device according to the circuit shown in FIG.

It is to be understood that the above-described embodiments are provided to facilitate understanding of the present invention, and do not limit the scope of the present invention, and it is to be understood that various modified embodiments may be included within the scope of the present invention. For example, each component shown in the embodiment of the present invention may be distributed and implemented, and conversely, a plurality of distributed components may be combined. Therefore, the technical protection scope of the present invention should be determined by the technical idea of the claims, and the technical protection scope of the present invention is not limited to the literary description of the claims, The invention of a category.

Claims (8)

An internal battery to store energy;
An interface unit including a plurality of power input ports, a plurality of power output ports, an LED connection port for connecting an external LED device, and an external battery connection port for connecting an external battery;
A radio unit driven by the internal battery;
A display unit for displaying a state of the internal battery;
A sensor unit for sensing a state of the internal battery; And
And a controller for determining an abnormality according to the state of the internal battery and adjusting a power output from the power output port,
Wherein the plurality of power input ports include:
A vehicle cigar jack connection port, an AC power input port, and a DC power input port converted from solar energy,
Wherein the plurality of power output ports include:
A vehicle cigar jack connection port, an AC power output port, a DC power output port, and a USB connection port,
The sensor unit measures the temperature, the load, the voltage, and the stored energy amount of the internal battery,
Wherein,
When the voltage is out of a predetermined range, the power output to the power output port is cut off,
And decreases the magnitude of power output to the power output port when the stored energy amount is equal to or less than a predetermined energy amount.
The method according to claim 1,
Wherein the internal battery is provided as a lithium iron phosphate battery.
delete delete The method according to claim 1,
The portable energy storage device includes:
And a power conversion unit for converting the DC power source and the AC power source to each other.
delete The method according to claim 1,
The display unit includes:
A plurality of LEDs, and displaying at least one of a state of charge of the internal battery and an abnormality of the internal battery.
delete

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