Rechargeable battery remaining charge check device

Abstract

The present invention relates to a device for checking remaining charge of a rechargeable battery, and is characterized by including: a rechargeable battery including a lithium ion battery and a circuit unit; and a mobile terminal that displays, stores, and manages, via an app, data such as the manufacturing date of the rechargeable battery, the remaining battery charge when charging, the charging start time, the charging completion time, the number of charges, and the remaining battery charge when discharging, the discharging start time, the discharging completion time, and the number of discharges, which are stored in a storage unit of the circuit unit.

Description

[Technical Field]

[0001] The present invention relates to a device for checking the remaining charge of a rechargeable battery, and more particularly to a device for checking the remaining charge of a rechargeable battery on a mobile terminal. [Background technology]

[0002] Portable electronic devices generally operate using at least one DC 1.5V battery, and as their functions become more diverse, power consumption increases, leading to increased battery consumption and the need to recharge the battery.

[0003] To charge such a battery, the battery is placed inside the housing of the charging device, and commercial AC power or a car cigarette lighter power supply is supplied via a charging cable extending from one side of the housing, and this is converted to match the charging voltage of the battery to charge it.

[0004] Recently, Korean Patent No. 10-2269644 discloses a USB rechargeable battery that charges a lithium battery cell by connecting a USB terminal to a USB connector.

[0005] However, such conventional USB rechargeable batteries have the problem that it is difficult to check the remaining charge during charging and use. Summary of the Invention [Problem to be solved by the invention]

[0006] SUMMARY OF THE INVENTION In order to solve the above problems, an object of the present invention is to provide a device for checking the remaining charge of a rechargeable battery, which can check the remaining charge of a rechargeable battery through a mobile terminal app. [Means for solving the problem]

[0007] To achieve the above-mentioned object, the rechargeable battery remaining charge checking device of the present invention is characterized by including: a rechargeable battery including a lithium-ion battery and a circuit unit; and a mobile terminal that displays, saves, and manages data of the rechargeable battery stored in the storage unit of the circuit unit, such as the manufacturing date, remaining battery charge at the time of charging, charging start time, charging completion time, number of charges, and remaining battery charge at the time of discharging, discharging start time, discharging completion time, and number of discharges, via an app.

[0008] The circuit unit includes a power supply unit that supplies power and has a charging protection circuit function; a storage unit that stores the data; a control unit that transmits data from the storage unit via a communication unit when requested by the mobile terminal and controls the power supply unit, storage unit, LED, and communication unit; an LED that displays the charging status of the lithium-ion battery; and a communication unit that transmits data from the storage unit to the mobile terminal.

[0009] The rechargeable battery includes a circuit portion and a lithium-ion battery inside the case; The case includes a cover fixed to the upper end of the case; and a circular anode (+) plate fixedly inserted into the upper end surface of the cover.

[0010] The rechargeable battery is characterized by comprising a circuit part, a USB C-type connection terminal, and a lithium-ion battery inside a case; a lid attached and fixed to the upper end of the case; a semicircular positive electrode (+) plate inserted and fixed to one side of the upper end surface of the lid; and a USB C-type connection terminal inside a hole formed on the side of the semicircular positive electrode (+) plate through the lid.

[0011] The circuit unit is characterized by having a USB c-type connection terminal on the side thereof.

[0012] The rechargeable battery is characterized by including a circuit part and a lithium-ion battery inside a case; a lid attached to the upper end of the case; a USB type A connection terminal attached to the upper surface of the lid; a lid covering the USB type A connection terminal; and a circular positive electrode (+) plate on the upper surface of the lid that comes into contact with the USB type A connection terminal.

[0013] The cover can be separated from the case and has a magnet built into a circular area at the bottom end.

[0014] The cover is made of a transparent or translucent plastic material.

[0015] The control unit calculates a self-discharge rate based on an interval between a charging completion time and a use start time of the storage unit, and transmits the calculated self-discharge rate to the mobile terminal via the communication unit.

[0016] The control unit sets an alarm when the lithium ion battery is discharged to 20% or less and when the lithium ion battery is charged to 95% or more, and transmits the alarm to the mobile terminal via the communication unit. [Effects of the Invention]

[0017] As described above, according to the present invention, the remaining charge of a rechargeable battery can be checked through a mobile terminal app, and charging and replacement can be conveniently managed. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a diagram showing the configuration of a device for checking the remaining charge of a rechargeable battery according to the present invention; [Figure 2] 1 is a block diagram showing a circuit section of a device for checking the remaining charge of a rechargeable battery according to the present invention; [Figure 3] FIG. 2 is a block diagram illustrating a charging and discharging circuit according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings, so that those skilled in the art can easily understand the present invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments set forth herein.

[0020] Now, an embodiment of a device for checking the remaining charge of a rechargeable battery according to the present invention will be described in detail.

[0021] FIG. 1 is a block diagram showing a device for checking the remaining charge of a rechargeable battery according to the present invention, and FIG. 2 is a block diagram showing a circuit portion of the device for checking the remaining charge of a rechargeable battery according to the present invention.

[0022] 1 and 2, the device for checking the remaining charge of a rechargeable battery according to the present invention may include a rechargeable battery 100 and a portable terminal 200. As shown in FIG.

[0023] 1(a), the rechargeable battery 100 may include a circuit unit 130 and a lithium-ion battery 120 inside a case 110. Here, the circuit unit 130 may be provided on the upper end of the lithium-ion battery 120, but is not limited thereto.

[0024] A cover 140 is fixed to the upper end of the case 110, and a circular positive electrode (+) plate 150 may be inserted and fixed to the upper end surface of the cover 140.

[0025] 1(b), the rechargeable battery 100 may include a circuit unit 130, a USB c-type connection terminal 160, and a lithium-ion battery 120 inside the case 110. Here, the circuit unit 130 may be provided on the upper end of the lithium-ion battery 120, and a USB c-type connection terminal 160-1 may be provided on a side of the circuit unit 130, but is not limited thereto.

[0026] A cover 140 may be coupled and fixed to the upper end of the case 110. A semicircular positive electrode (+) plate 150-1 may be inserted and fixed to one side of the upper end surface of the cover 140, and a USB c-type connection terminal 160-1 may be provided inside a hole formed through the cover 140 on the side of the semicircular positive electrode (+) plate 150-1.

[0027] 1(c), the rechargeable battery 100 may include a circuit unit 130 and a lithium-ion battery 120 inside a case 110. Here, the circuit unit 130 may be provided on the upper end of the lithium-ion battery 120, but is not limited thereto.

[0028] A cover 140 is coupled and fixed to the upper end of the case 110, and a USB a-type connection terminal 160-2 may be coupled and fixed to the upper surface of the cover 140.

[0029] The USB a-type connection terminal 160-2 may be covered with a cover 170, and the cover 170 may be separated from the case 110. Here, the cover 170 may have a circular positive (+) plate 150-2 formed on the top surface thereof, which is in contact with the USB a-type connection terminal 160-2.

[0030] Meanwhile, the cover 170 may have a magnet built into the circular periphery of the bottom end, and during charging, the cover 170 may be separated from the USB a-type connection terminal 160-2 and attached to the case 110. This can fundamentally prevent the cover 170 from being lost.

[0031] The cover 140 may be made of a transparent or translucent plastic material.

[0032] The circuit unit 130 may include a power supply unit 131 , a storage unit 132 , a control unit 133 , an LED 134 , and a communication unit 135 .

[0033] The power supply unit 131 is supplied with 5V power and includes a voltage conversion circuit having a charging protection circuit function, so that the lithium ion battery 120 can be fundamentally protected.

[0034] The storage unit 132 can store data such as the manufacturing date of the rechargeable battery 100, the remaining battery capacity at the time of charging, the time when charging starts, the time when charging is completed, the number of times of charging, the remaining battery capacity at the time of discharging, the time when discharging starts, the time when discharging is completed, the number of times of discharging, etc.

[0035] The control unit 133 can transmit the data in the storage unit 132 via the communication unit 135 upon request from the mobile terminal 200. That is, the control unit 133 can transmit data such as the manufacturing date, the remaining battery capacity at the time of charging, the charging start time, the charging completion time, the number of charges, and the remaining battery capacity at the time of discharging, the discharging start time, the discharging completion time, the number of discharges, etc., stored in the storage unit 132 via the communication unit 135 upon request from the mobile terminal 200.

[0036] In addition, the control unit 133 can calculate a self-discharge rate (self-discharge time) based on the interval between the charging completion time and the use start time of the storage unit 132 and transmit the calculated self-discharge rate to the mobile terminal 200 via the communication unit 135.

[0037] The control unit 133 can set an alarm when the lithium ion battery 120 is discharged to 20% or less and when the lithium ion battery 120 is charged to 95% or more, and transmit the alarm to the application of the mobile terminal 200 via the communication unit 135. At this time, the alarm setting can be transmitted from the mobile terminal 200.

[0038] In addition, the control unit 133 can control the power supply unit 131 , the storage unit 132 , the LED 134 , and the communication unit 135 .

[0039] The LED 134 is a green LED that indicates the charging status of the lithium-ion battery, and alternately lights on and off for one second during charging. When charging is complete, the green LED remains on. At this time, the charging status can be confirmed through the green LED light that passes through the cover 140 made of a transparent or translucent plastic material.

[0040] The communication unit 135 may transmit data from the storage unit 132 to the mobile terminal 200. Here, the communication unit 135 may transmit data wirelessly via ZigBee (registered trademark), Wi-Fi, Bluetooth (registered trademark), etc., and preferably via Bluetooth.

[0041] The mobile terminal 200 can display, store, and manage data of the rechargeable battery 100 through an application.

[0042] FIG. 3 is a block diagram illustrating a charging and discharging circuit according to the present invention.

[0043] 3, the StepDown Regulator 310 is operated for 1.5V discharge, and the Charge Control 320 can be disabled. At this time, the voltage / current output from the lithium-ion battery 120 can be detected and transmitted to the outside via the BLE 330 when necessary. Here, the BLE 330 can monitor the voltage to select discharge / charge.

[0044] If the voltage at the (+) terminal 340 is detected to be 4.2V, which is higher than 1.5V, the charge control can be enabled to operate the Charge Control 320 and charge the battery. At this time, the discharge control can be disabled to stop the operation of the Step Down Regulator 310. Here, the Step Down Regulator 310 can be protected against reverse current using a Blocking Diode 350.

[0045] Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited to these, and various modifications and improvements made by those skilled in the art using the basic concept of the present invention defined in the following claims also fall within the scope of the present invention.

Claims

1. Rechargeable batteries, including lithium-ion batteries and circuitry; and a mobile terminal that displays, saves, and manages the data stored in the storage unit of the circuit unit through an application; The circuit unit includes: A power supply unit that provides power and has a charging protection circuit function; a storage unit for storing the data; a control unit that transmits data from the storage unit via a communication unit when requested by the mobile terminal and controls a power supply unit, the storage unit, an LED, and the communication unit; an LED indicating the charging status of the lithium-ion battery; and a communication unit that transmits data from the storage unit to a mobile terminal; The data includes the manufacturing date of the rechargeable battery, the remaining battery capacity at the time of charging, the time when charging started, the time when charging was completed, the number of times of charging, the remaining battery capacity at the time of discharging, the time when discharging started, the time when discharging was completed, and the number of times of discharging; The control unit sets an alarm when the lithium ion battery is discharged to 20% or less and when the lithium ion battery is charged to 95% or more, and transmits the alarm to the mobile terminal via the communication unit.

2. The rechargeable battery is The circuitry and lithium-ion battery are located inside the case; a lid fixedly coupled to the upper end of the case; and 2. The device for checking remaining charge of a rechargeable battery according to claim 1, further comprising: a circular positive electrode (+) plate inserted and fixed to an upper end surface of the cover.

3. The rechargeable battery is The circuitry, USB c-type connector, and lithium-ion battery are located inside the case; a cover fixedly connected to the upper end of the case; a semicircular anode (+) plate inserted and fixed to one side of the upper end surface of the lid; and 2. The device for checking remaining charge of a rechargeable battery according to claim 1, further comprising: a USB c-type connection terminal inside a hole formed on a side of the semicircular positive electrode (+) plate by penetrating a cover.

4. 4. The device for checking the remaining charge of a rechargeable battery according to claim 3, wherein a USB c-type connection terminal is provided on a side of the circuit unit.

5. The rechargeable battery is The circuitry and lithium-ion battery are located inside the case; a cover fixedly connected to the upper end of the case; a USB a-type connection terminal coupled and fixed to the top surface of the cover; a cover for covering the USB a-type connection terminal; and 2. The device for checking remaining charge of a rechargeable battery according to claim 1, further comprising: a circular positive electrode (+) plate on an upper surface of the cover, the positive electrode (+) being in contact with a USB a-type connection terminal.

6. 6. The device for checking remaining charge of a rechargeable battery according to claim 5, wherein the cover can be separated from the case, and a magnet is built into a circular periphery at the bottom end.

7. 7. The device for checking the remaining charge of a rechargeable battery according to claim 2, wherein the cover is made of a transparent or translucent plastic material.

8. 2. The device for checking remaining charge of a rechargeable battery according to claim 1, wherein the control unit calculates a self-discharge rate based on an interval between a charging completion time of the storage unit and a start time of use, and transmits the calculated self-discharge rate to a mobile terminal via a communication unit.

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