KR200360820Y1 - Portable battery case for displaying remanent capacity of battery - Google Patents

Abstract

The present invention relates to a battery carrying case capable of displaying the remaining amount of a portable electronic device. The battery carrying case of the present invention forms a body of the carrying case to insert or detach a battery, a button for activating to display the remaining battery when the battery is inserted into the case, and the battery is inserted into the case, and the button is pressed. And a remaining amount display unit indicating a remaining state of the battery. Therefore, according to the present invention, by inserting the battery of the portable electronic device into the carrying case to display the remaining state of the battery to the user through the display device mounted on the carrying case, it is easy to manage the battery, and thus the use of the portable electronic device It provides convenience.

Description

Battery carrying case showing battery level status {PORTABLE BATTERY CASE FOR DISPLAYING REMANENT CAPACITY OF BATTERY}

The present invention relates to a portable electronic device, and more particularly to a battery carrying case for displaying the battery remaining status.

The portable electronic device is powered using at least one battery. At this time, the usage time of the portable electronic device is determined according to the charging capacity of the battery. When a user uses one battery, the user always carries the battery by checking the state of charge of the battery in consideration of the portability of the portable electronic device, In addition, carry more batteries.

Typically, mobile phones have at least two batteries for easy portability. In this case, one battery is mounted in the mobile phone, and the other is carried separately in a handbag, a pocket, or the like. At this time, the battery to be additionally carried can not determine the state of charge, the battery is discharged or exploded due to the contact of the electrically conductive material electrically connected to the power and data terminals of the battery during carrying.

The conventional mobile phone battery merely serves as a battery that is simply mounted on the mobile phone to supply power, and the remaining battery capacity cannot be determined until the battery is connected to the mobile phone. When using a mobile phone when you carry extra batteries when you go out, it is sometimes determined that the uncharged battery is fully charged, and when the currently installed battery is completely discharged, an additional battery is installed in the mobile phone. If you have a dead battery, you may not be able to use your phone.

An object of the present invention is to solve the above-described problem, in a portable electronic device using a battery, to provide a battery carrying case for checking the state of charge and discharge of the battery.

1 is a perspective view showing a battery carrying case of the present invention;

2 is a cross-sectional view showing a state in which a battery is inserted into the battery carrying case shown in FIG.

3 is a block diagram showing the configuration of the battery carrying case shown in FIG. 2; And

4 is a circuit diagram illustrating a configuration of a battery remaining amount display circuit illustrated in FIG. 3.

Explanation of symbols on the main parts of the drawings

10: battery 12: battery terminal

100: battery carrying case 101: case body

102: case terminal 104: display button

106: display unit 107: holder

108: battery insertion port 110: battery level indicator circuit

112: battery level detection circuit

According to a feature of the present invention for achieving the above object, the battery carrying case of the portable electronic device, the body of the carrying case to insert or detach the battery; A button for activating the remaining battery capacity when the battery is inserted into the case; When the battery is inserted into the case and the button is pressed, the battery includes a remaining amount display unit indicating a remaining state of the battery.

In a preferred embodiment of this aspect, the remaining amount display unit; A first comparison circuit connected to a power supply terminal of the battery when the battery is inserted into the case and the button is pressed, and comparing the power supply voltage of the power supply terminal with a first reference voltage to detect a residual amount of the battery; A second comparison circuit connected to the power supply terminal when the battery is inserted into the case and the button is pressed, and detecting a remaining amount of the battery by comparing the power supply voltage with a second reference voltage; And a display circuit for indicating the remaining amount of the battery in response to the detection result of the second comparison circuit. The display circuit may include at least one light emitting diode, wherein the light emitting diode has the power supply voltage greater than or equal to the first reference voltage, less than or equal to the second reference voltage, and greater than or equal to the second reference voltage. Differently corresponding to the voltage level below.

Therefore, according to the present invention, when the battery is inserted into the battery carrying case and the button is pressed, the charge amount of the battery is displayed.

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

1 and 2 are a perspective view and a cross-sectional view showing a battery carrying case of the present invention.

1 and 2, the battery carrying case 100 may include a case body portion 101 into which the battery 10 can be inserted, a battery display button 104 that activates to display a remaining amount of the battery 10, and And a display unit 106 indicating a battery remaining state.

The battery 10 may have various sizes, such as small capacity, standard type, and large capacity, and may be mounted on a mobile phone (not shown) or mounted on a charger (not shown) to charge / discharge battery power. And power supply terminals 12.

The battery carrying case 100 has a mechanical structure in which the battery 10 can be inserted into and detached from the case body 101. For example, the battery 10 is inserted into the battery carrying case 100 through a battery insertion hole 108, the holder for allowing the inserted battery 10 is fixed to the inside of the battery carrying case 100 ( 107) and the like.

As shown in FIG. 2, when the battery 10 is inserted through the battery insertion hole 108, the case body part 101 is provided with a material for protecting the battery 10 from being damaged. In addition, the case body portion 101 includes a case terminal 102 in electrical contact with a power terminal 12 of the battery 10 therein, in order to detect the remaining amount of the battery.

The case body portion 101 includes the display button 104 and the display portion 106 on one side. The display button 104 is provided so as not to display the remaining battery level unless the display button 104 is pressed to prevent battery discharge even when the battery 10 is inserted. Therefore, the display button 104 activates to display the remaining battery level only when the battery 10 is inserted into the carrying case 100 and the display button 104 is pressed.

The display unit 106 may include, for example, at least one light emitting diode (LED) or a liquid crystal display panel (LCD). According to an embodiment of the present invention, the display unit 106 includes three light emitting diodes (LEDs) (D1 to D3 in FIG. 4), and the first to third level batteries corresponding to the charge amount of the battery 10. The remaining amount is displayed.

That is, in the present invention, the user can easily check the state through the light emitting diodes which can check the remaining battery level even when not connected to the mobile phone. For example, when the battery 10 is inserted into the carrying case 100 and the display button 104 is pressed, the voltage of the battery 10 is checked to be blue if the first level (high level of about 3.8 V or higher) is checked. When the LED D1 is displayed, and at the second level (within about 3.2 V to 3.8 V), the two LEDs D1 and D2 are simultaneously displayed to indicate purple color. At the third level (a low level of about 3.2 V or less), the red LED D2 is displayed.

Referring to FIG. 3, the battery carrying case 100 includes a battery remaining amount display circuit 110 for displaying the remaining battery amount. When the battery 10 is inserted in the battery carrying case 100, the battery terminal 12 (Vcc, Ground) and the case terminal (102 of FIG. 1) are electrically connected to each other.

The battery remaining amount display circuit 110 includes the display button 104, the display unit 106, and the battery remaining amount detection circuit 112.

The battery level detection circuit 112 receives a voltage Vcc according to the battery level from the power supply terminal 12 of the battery 10, and receives the activated signal Active when the display button 104 is pressed. The remaining amount of the inserted battery 10 is detected. The detected information corresponding to the detected battery remaining amount and the combination thereof are output to the display unit 106 to indicate the battery remaining state.

In detail, referring to FIG. 4, the battery remaining amount display circuit 110 includes a battery remaining amount detection circuit 112, the display button 104, and the display unit 106.

The display unit 106 includes a plurality of light emitting diodes D1 to D3 to indicate the remaining amount of the inserted battery 10.

The battery level detecting circuit 112 includes a plurality of resistors R1 to R6 between the battery power supply voltage Vcc and the ground voltage Ground, and the first and second comparators U1 and U2 connected in parallel to each other. It includes.

The resistors R1, R2, R3, and R4 divide the battery power voltage Vcc, respectively, to convert the first and second reference voltages to the inverting input terminals (-) of the first and second comparators U1 and U2. Generate. The battery power supply voltage Vcc is input to each of the non-inverting terminals +.

The first comparator U1 compares the first reference voltage with the power supply voltage Vcc of the battery 10, and detects a first high level when the battery power supply voltage Vcc is greater than or equal to the first reference voltage. The signal Detect1 is output to the first light emitting diode D1. Accordingly, the first comparator U1 indicates that the power supply voltage Vcc of the battery 10 is greater than or equal to the first reference voltage through the first light emitting diode D1.

The second comparator U2 compares the second reference voltage with the power supply voltage Vcc of the battery 10, and detects a second high level when the battery power supply voltage Vcc is less than or equal to the second reference voltage. The signal Detect2 is output to the second light emitting diode D2. Accordingly, the second comparator U2 indicates that the power supply voltage Vcc of the battery 10 is less than or equal to the second reference voltage through the second light emitting diode D2.

When the power supply voltage Vcc of the battery 10 is a voltage level between the first reference voltage and the second reference voltage, the detection signals Detect1 and Detect2 of the first and second comparators U1 and U2 are output. The first and second light emitting diodes D1 and D2 are simultaneously displayed.

As described above, the present invention allows the user to easily check the battery remaining state through the display unit 106 that can check the remaining amount of the battery 10 even when not mounted in the mobile phone. That is, when the battery 10 is inserted into the battery carrying case 100 and the display button 104 is pressed, the voltage of the battery 10 is checked and a red LED is displayed when the voltage level is about 3.2 V or less. For voltage levels above 3.8 V, blue LEDs should be displayed, and purple for approximately 3.2 V to 3.8 V.

Therefore, when the battery is mounted in the battery carrying case and the user wonders whether the battery is fully charged or discharged, it is possible to determine the state of charge of the battery by pressing a button on the case.

At this time, the detection method according to the remaining battery display may have a difference in the required voltage according to the performance of the mobile phone. Therefore, although not shown in the drawing, various voltage levels may be selected and displayed using jumpers, selectors, or switches.

In addition, by inserting the battery into the carrying case without mounting the battery to determine the remaining state of the battery, it is easy to manage the battery additionally. In addition, by adding the battery level display function through a separately designed carrying case, the battery level display function can be maintained, and the battery level can be determined through an additional accessory concept carrying case. .

Although the battery carrying case of the present invention has been described in detail by limiting a portable electronic device to a mobile phone, the battery carrying case of the present invention is applicable to a battery of all portable electronic devices.

As described above, the present invention inserts the battery of the portable electronic device into the carrying case and displays the remaining state of the battery to the user through the display device mounted in the carrying case, so that battery management is easy.

Therefore, by carrying an additional battery to determine the state of charge and discharge of the battery, it is possible to prevent mistakes in advance so as not to carry a discharged battery when going out, thereby providing convenience for the use of portable electronic devices Do it.

In addition, since the user can check the charge level of the battery as a conventional product, it is possible to differentiate the product of the battery carrying case equipped with the battery remaining amount display function.

Claims (3)

In the battery carrying case of a portable electronic device: A case which forms a body of the carrying case to insert or detach the battery; A button for activating the remaining battery capacity when the battery is inserted into the case; When the battery is inserted into the case, the button is pressed, the battery carrying case, characterized in that it comprises a remaining amount display unit indicating the remaining state of the battery. The method of claim 1, The remaining amount display unit; A first comparison circuit connected to a power supply terminal of the battery when the battery is inserted into the case and the button is pressed, and comparing the power supply voltage of the power supply terminal with a first reference voltage to detect a residual amount of the battery; A second comparison circuit connected to the power supply terminal when the battery is inserted into the case and the button is pressed, and detects a residual amount of the battery by comparing the power supply voltage with a second reference voltage; And a display circuit for indicating a residual amount of the battery in response to the detection results of the first and second comparison circuits. The method of claim 2, The display circuit, Is provided with at least one light emitting diode, The light emitting diode may display the power supply voltage differently in response to a voltage level equal to or greater than the first reference voltage, equal to or less than the second reference voltage, and greater than or equal to the second reference voltage and less than the first reference voltage. Battery carrying case.