KR20080032545A - Apparatus and method for preventing an electronic equipment damage by rising battery temperature - Google Patents

Apparatus and method for preventing an electronic equipment damage by rising battery temperature Download PDF

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Publication number
KR20080032545A
KR20080032545A KR1020060098574A KR20060098574A KR20080032545A KR 20080032545 A KR20080032545 A KR 20080032545A KR 1020060098574 A KR1020060098574 A KR 1020060098574A KR 20060098574 A KR20060098574 A KR 20060098574A KR 20080032545 A KR20080032545 A KR 20080032545A
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South Korea
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battery temperature
portable electronic
electronic device
power supply
predetermined value
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KR1020060098574A
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Korean (ko)
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KR101269266B1 (en
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김종대
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엘지전자 주식회사
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
    • H02J7/007194—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00309—Overheat or overtemperature protection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

An apparatus and a method for preventing damage of portable electronic equipment due to a battery temperature rise are provided to prevent temperature rises of components inside the electronic equipment connected to a battery by selectively cutting off power supply to the components when battery temperature is saturated. An apparatus for preventing damage of portable electronic equipment due to a battery temperature rise includes a battery temperature detecting unit(400) and a charge current adjusting unit(300). The battery temperature detecting unit detects battery temperature of the portable electronic equipment which is charged with any kinds of power. The charge current adjusting unit lowers charge current of the charged power in case that the detected battery temperature is higher than a predetermined value. The predetermined value is within the range of 50 to 55.C.

Description

배터리온도 상승에 따른 휴대용 전자기기 손상 방지 장치 및 방법{Apparatus and method for preventing an electronic equipment damage by rising battery temperature}Apparatus and method for preventing an electronic equipment damage by rising battery temperature}

도 1은 종래에 휴대용 전자기기의 개략적인 구성 블럭도이다.1 is a schematic structural block diagram of a conventional portable electronic device.

도 2는 본 발명에 따른 휴대용 전자기기의 구성 블럭도이다.2 is a block diagram of a portable electronic device according to the present invention.

도 3은 배터리온도 상승에 따라 하향조절되는 충전전류를 예시한 것이다.3 illustrates a charging current that is down regulated as the battery temperature increases.

도 4는 본 발명인 배터리온도 상승에 따른 휴대용 전자기기 손상 방지방법의 흐름도이다.4 is a flowchart of a method for preventing damage to a portable electronic device according to the present invention with increasing battery temperature.

<도면의 주요부분에 대한 부호의 설명>          <Description of the symbols for the main parts of the drawings>

10,100 : 배터리 팩 20,200 : 충전부10,100: battery pack 20,200: charging unit

30 : 충전전류 조절부 30: charging current control unit

31,300 : CPU(Central Processing Unit)31,300: Central Processing Unit (CPU)

40,400 : PMU(Power Management Unit)40,400: PMU (Power Management Unit)

50,500 : 주변기기50,500: Peripheral

본 발명은 휴대용 전자기기의 손상을 방지하는 장치 및 방법에 관한 것으로서, 보다 상세하게는, 충전도중, 배터리온도 상승에 따른 휴대용 전자기기의 손상을 방지하는 배터리온도 상승에 따른 휴대용 전자기기 손상 방지 장치 및 방법에 관한 것이다.The present invention relates to a device and a method for preventing damage to a portable electronic device, and more particularly, a device for preventing damage to a portable electronic device due to an increase in battery temperature to prevent damage to the portable electronic device due to a battery temperature increase during charging. And to a method.

휴대용 전자기기는, 대개의 경우, 배터리 팩을 이용하여 제품에서 필요로 하는 전원을 공급받아 충전한다. 특히 이들 휴대형 전자기기 가운데 네비게이션(navigation)이나, DMB(Digital Multimedia Broadcasting) 디바이스인 PMP(Portable Multimedia Player) 또는 PDA(Personal Digital Assistants)의 경우 외부 온도의 영향을 많이 받는 차량 내에서 충전동작이 이루어진다.In most cases, the portable electronic device uses a battery pack to receive and charge power required by the product. In particular, among these portable electronic devices, a charging operation is performed in a vehicle that is heavily influenced by external temperature in the case of navigation, a digital multimedia broadcasting (DMB) device, a portable multimedia player (PMP) or a personal digital assistant (PDA).

도 1은 종래에 휴대용 전자기기의 개략적인 구성 블럭도로서, 도 1을 참조하여, 종래에 휴대용 전자기기에서의 충전동작에 대해 설명하면 다음과 같다.FIG. 1 is a schematic block diagram of a conventional portable electronic device. Referring to FIG. 1, the charging operation of the portable electronic device will be described below.

배터리 팩(10)은 입력되는 전원을 직렬 및 병렬로 연결된 여러개의 배터리에 충전하고, 충전부(20)는 외부로부터 입력되는 DC전원(통상 5V)을 'BAT'단자를 통해 상기 배터리 팩(10)에 전송한다.The battery pack 10 charges input power to a plurality of batteries connected in series and in parallel, and the charging unit 20 receives the DC power input (normally 5V) input from the outside through the 'BAT' terminal. To transmit.

또한, 충전전류 조절부(30)는 충전부(20)를 거쳐 배터리 팩(10)에 충전되는 충전전류의 크기를 조절하기 위한 구성블럭이다.In addition, the charging current adjusting unit 30 is a configuration block for adjusting the size of the charging current charged in the battery pack 10 via the charging unit 20.

즉, 사용자에 의해 '고속충전모드'가 선택되지 않은 상태에서는, CPU(31)가 'GPIO' 단자에 연결된 'FET'를 '오프(off)'시키고, 충전부(20)에 연결된 저항값(R)은 R=R3+R4이 되어 배터리 팩(10)에 충전되는 충전전류의 크기가 설정(통상 이때 충전전류는 0.5A)된다.That is, in the state where the 'fast charging mode' is not selected by the user, the CPU 31 'off' the 'FET' connected to the 'GPIO' terminal and the resistance value R connected to the charging unit 20. ) Is R = R3 + R4, and the magnitude of the charging current charged in the battery pack 10 is set (normally, the charging current is 0.5A).

반면, 사용자의 의해 '고속충전모드'가 선택되면, CPU(31)는 상기 'FET'를 '온(on)'시키고, 충전부(20)에 연결된 저항값(R)은 R=R3이 되어 배터리 팩(10)에 충전되는 충전전류는 상향조절(통상 R3=R4로 충전전류는 1A)된다.On the other hand, when the 'fast charging mode' is selected by the user, the CPU 31 'on' the 'FET', the resistance value R connected to the charging unit 20 is R = R3 battery The charging current charged in the pack 10 is upwardly regulated (normally R3 = R4 and the charging current is 1A).

또한, PMU(Power Management Unit, 이하 'PMU'라 함)(40)는 각 구성요소들{충전부(20), 충전전류 조절부(30), 주변기기(50)}에의 전원공급을 제어한다. 상기 주변기기(50)에는 휴대용 전자기기의 구성요소들 가운데 도 1에 상세히 언급되지 않은 구성요소들(예를 들어, RAM, LCD, I/O 관련 구성요소, 버튼, HDD 등)이 포함될 수 있다.In addition, the PMU 40 hereinafter controls the supply of power to each of the components (the charging unit 20, the charging current control unit 30, and the peripheral device 50). The peripheral device 50 may include components (for example, RAM, LCD, I / O related components, buttons, HDDs, etc.) which are not mentioned in detail in the components of the portable electronic device.

한편, 상기 배터리 팩(10)은 내장된 온도센서로부터 출력되는 전압값(VT1)을 'TS'단자를 통해 충전부(20)로 전송한다. 충전부(20)는, 상기 배터리 팩(10)으로부터 출력된 후 R1, R2에 의해 전압강하된 전압값(VT2)을 입력받아 전압값(VT2)에 따른 배터리온도가 포화상태(예를 들어, 60℃ 이상)이면 배터리 팩(10)으로의 충전동작을 중단한다.Meanwhile, the battery pack 10 transmits the voltage value V T1 output from the built-in temperature sensor to the charger 20 through the 'TS' terminal. The charging unit 20 receives a voltage value V T2 that is output from the battery pack 10 and is then dropped by R1 and R2, and the battery temperature according to the voltage value V T2 is saturated (for example, , 60 ° C. or more), the charging operation to the battery pack 10 is stopped.

그런데, 전술한 바와 같이 충전동작이 중단된 상태에서도 외부 온도가 상승하게 되면 배터리온도는 계속 상승하게 되고, 외부 온도의 영향을 많이 받는 차량 내에서 충전동작이 이루어진 경우, 휴대용 전자기기 내부에 각종 부품들의 온도가 상승하여 휴대용 전자기기가 손상되는 문제점이 발생되었다.However, as described above, when the external temperature rises even when the charging operation is stopped, the battery temperature continues to increase, and when the charging operation is performed in a vehicle affected by the external temperature, various components inside the portable electronic device are used. As the temperature of the field rises, a problem arises that the portable electronic device is damaged.

더구나, 사용자에 의해 '고속충전모드'가 선택되어 충전전류가 높게 설정되면 배터리온도는 더욱 급격하게 상승되어, 휴대용 전자기기의 손상정도가 더욱 심각해지는 문제점이 발생되었다.In addition, when the 'fast charging mode' is selected by the user and the charging current is set high, the battery temperature rises more rapidly, resulting in a more serious damage of the portable electronic device.

따라서, 본 발명은 상기와 같은 문제점을 해결하기 위해 창작된 것으로서, 배터리온도 상승시 충전전류를 하향조절하여 배터리온도의 급격한 상승을 막음으로써 휴대용 전자기기 내부에 각종 부품들의 온도상승을 방지하는 배터리온도 상승에 따른 휴대용 전자기기 손상 방지 장치 및 방법을 제공하는데 그 목적이 있다.Therefore, the present invention was created to solve the above problems, the battery temperature to prevent the temperature rise of the various components inside the portable electronic device by preventing the sudden rise of the battery temperature by adjusting the charging current when the battery temperature rises An object of the present invention is to provide an apparatus and method for preventing damage to a portable electronic device due to an increase.

또한 본 발명은, 배터리온도가 포화상태인 경우 휴대용 전자기기 각 구성요소에의 전원공급을 선별적으로 차단함으로써 배터리에 연결된 휴대용 전자기기 내부에 각종 부품들의 온도상승을 방지하는 배터리온도 상승에 따른 휴대용 전자기기 손상 방지 장치 및 방법을 제공하는 데 다른 목적이 있다.In another aspect, the present invention, when the battery temperature is saturated, the portable device according to the increase in battery temperature to prevent the temperature rise of various components inside the portable electronic device connected to the battery by selectively blocking the power supply to each component of the portable electronic device Another object is to provide an apparatus and method for preventing damage to electronic devices.

상술한 목적을 달성하기 위한 본 발명의 제 1 실시예에 따른 배터리온도 상승에 따른 휴대용 전자기기 손상 방지장치는, 임의의 전원을 충전중인 휴대용 전자기기의 배터리온도를 검출하는 배터리온도 검출수단; 및 상기 검출된 배터리온도가 소정 값 이상이면, 상기 충전되는 전원의 충전전류 크기를 하향조절하는 충전전류 조절수단을 포함한다.In accordance with a first aspect of the present invention, there is provided a device for preventing damage to a portable electronic device, the battery temperature detecting means detecting a battery temperature of a portable electronic device charging any power source; And charging current adjusting means for downwardly adjusting the magnitude of the charging current of the charged power when the detected battery temperature is equal to or greater than a predetermined value.

상기 소정 값은 50~55℃ 범위 내에 속할 수 있다.The predetermined value may be in the range of 50 to 55 ° C.

상기 휴대용 전자기기 각 구성요소에의 전원공급을 제어하는 전원공급 제어수단을 더 포함하되, 상기 전원공급 제어수단은, 상기 검출된 배터리온도가 포화상태이면, 상기 각 구성요소에의 전원공급을 선별적으로 차단할 수 있다.And a power supply control means for controlling a power supply to each component of the portable electronic device, wherein the power supply control means selects a power supply to each component when the detected battery temperature is saturated. Can be blocked.

상기 전원공급 제어수단은, 상기 각 구성요소에의 전원공급이 슬립모드(sleep-mode)가 되도록 제어할 수 있다.The power supply control means may control the power supply to each component to be in a sleep mode.

상기 포화상태에서의 배터리온도는 60℃ 이상일 수 있다.The battery temperature in the saturated state may be 60 ° C or more.

또한, 본 발명의 제 1 실시예에 따른 배터리온도 상승에 따른 휴대용 전자기기 손상 방지방법은, 임의의 전원을 충전중인 휴대용 전자기기의 배터리온도를 검출하는 제 1 단계; 상기 검출된 배터리온도가 소정 값 이상인지의 여부를 판단하는 제 2단계; 및 상기 제 2단계의 판단결과 배터리온도가 소정 값 이상이면, 상기 충전되는 전원의 충전전류 크기를 하향조절하는 제 3단계를 포함한다.In addition, a method of preventing damage to a portable electronic device according to an increase in battery temperature according to a first embodiment of the present invention includes: a first step of detecting a battery temperature of a portable electronic device charging any power source; A second step of determining whether the detected battery temperature is equal to or greater than a predetermined value; And a third step of down-regulating the magnitude of the charging current of the charged power when the battery temperature is greater than or equal to a predetermined value as a result of the determination in the second step.

상기 소정 값은 50~55℃ 범위 내에 속할 수 있다.The predetermined value may be in the range of 50 to 55 ° C.

상기 제 2단계의 판단결과 배터리온도가 포화상태이면, 상기 휴대용 전자기기 각 구성요소에의 전원공급이 선별적으로 차단되도록 제어하는 제 4단계를 더 포함할 수 있다.If the battery temperature is saturated as a result of the determination of the second step, the method may further include a fourth step of controlling the power supply to each component of the portable electronic device to be selectively shut off.

상기 제 4단계는, 상기 각 구성요소에의 전원공급이 슬립모드(sleep-mode)가 되도록 제어할 수 있다.In the fourth step, the power supply to each component may be controlled to be in a sleep mode.

상기 포화상태에서의 배터리온도는 60℃ 이상일 수 있다.The battery temperature in the saturated state may be 60 ° C or more.

이상과 같은 구성과 흐름에 의해, 본 발명에 따른 배터리온도 상승에 따른 휴대용 전자기기 손상 방지 장치 및 방법은, 배터리온도 상승시 충전전류를 하향조절하여 배터리온도의 급격한 상승을 막고 더 나아가, 배터리온도가 포화상태인 경우 휴대용 전자기기 각 구성요소에의 전원공급을 선별적으로 차단함으로써, 배터리에 연결된 휴대용 전자기기 내부에 각종 부품들의 온도상승을 방지하는 것이다.By the above configuration and flow, the apparatus and method for preventing damage to the portable electronic device according to the increase in the battery temperature according to the present invention prevents a sudden increase in the battery temperature by further controlling the charging current when the battery temperature rises, and further, the battery temperature. When the saturation state is to selectively block the power supply to each component of the portable electronic device, to prevent the temperature rise of the various components inside the portable electronic device connected to the battery.

이하에서는, 도면을 참조하여 배터리온도 상승에 따른 휴대용 전자기기 손상 방지 장치 및 방법이 적용된 실시예에 대하여 보다 상세히 설명하기로 한다. Hereinafter, an embodiment to which the apparatus and method for preventing damage to a portable electronic device according to an increase in battery temperature will be described in detail with reference to the accompanying drawings.

참고로, 후술되는 실시예에서는, 사용자에 의해 '고속충전모드'가 선택가능하고, '고속충전모드' 선택시의 충전전류가 '고속충전모드' 비선택시의 충전전류 보다 높도록 구현하였으나, 이는 본 발명을 구현하기 위한 필수요소가 아님을 미리 말해둔다. For reference, in the embodiments described below, the 'fast charging mode' is selectable by the user, and the charging current when the 'fast charging mode' is selected is higher than the charging current when the 'fast charging mode' is not selected. It is noted that it is not an essential element for implementing the present invention.

도 2는 본 발명에 따른 제 1 실시예에 적용되는 휴대용 전자기기의 구성블럭도이다.2 is a block diagram of a portable electronic device applied to the first embodiment of the present invention.

배터리 팩(100)은 입력되는 전원을 직렬 및 병렬로 연결된 여러개의 배터리 에 충전하고, 충전부(200)는 외부로부터 입력되는 DC전원(통상 5V)을 'BAT'단자를 통해 상기 배터리 팩(100)에 전송한다.The battery pack 100 charges input power to a plurality of batteries connected in series and in parallel, and the charging unit 200 receives a DC power input (normally 5V) input from the outside through the 'BAT' terminal. To transmit.

사용자의 의해 '고속충전모드'가 선택시, CPU(300)는, 상기 'FET'를 '온(on)'시키고, 충전부(200)에 연결된 저항값(R)은 R=R3로 되어 배터리 팩(100)에 충전되는 충전전류가 높게 설정(통상 이때의 충전전류는 1A)된다.When the 'fast charging mode' is selected by the user, the CPU 300 turns the 'FET' on, and the resistance value R connected to the charging unit 200 becomes R = R3 so that the battery pack The charging current charged in the 100 is set high (normally, the charging current at this time is 1A).

또한, PMU(400)는 각 구성요소들{충전부(200), CPU(300), 주변기기(500)}에의 전원공급을 제어한다. 그리고, 상기 주변기기(500)에는 휴대용 전자기기의 구성요소들 가운데 도 2에 상세히 언급되지 않은 구성요소들(예를 들어, RAM, LCD, I/O 관련 구성요소, 버튼, HDD 등)이 포함될 수 있다.In addition, the PMU 400 controls power supply to each component (charger 200, CPU 300, peripheral device 500). In addition, the peripheral device 500 may include components (for example, RAM, LCD, I / O related components, buttons, HDDs, etc.) which are not mentioned in detail in FIG. 2 among components of the portable electronic device. have.

한편, 배터리 팩(100)은 내장된 온도센서로부터 출력되는 전압값(VT1)을 'TS'단자를 통해 PMU(400)로 전송한다. PMU(400)는, 상기 배터리 팩(100)으로부터 출력된 후 R1, R2에 의해 전압강하된 전압값(VT2)을 'ADCIN' 단자를 통해 입력받아 디지털데이터로 변환한다.Meanwhile, the battery pack 100 transmits the voltage value V T1 output from the built-in temperature sensor to the PMU 400 through the 'TS' terminal. The PMU 400 receives the voltage value V T2 , which is output from the battery pack 100 and then dropped by R1 and R2, through the 'ADCIN' terminal, and converts the digital value into digital data.

이어, PMU(400)는 디지털데이터로 변환된 전압값(VT2)에 대응되는 배터리온도를 검출하고 검출된 배터리온도가 소정 값(예를 들어, 50~55℃) 이상인 것으로 판단되면 'I2C' 단자를 통해 배터리온도가 50~55℃ 이상임을 CPU(300)에 알린다. 이에 따라, CPU(300)는 'GPIO' 단자에 연결된 'FET'를 '오프(off)'시키고, 충전부(200)에 연결된 저항값(R)은 R=R3+R4로 되어 배터리 팩(100)에 충전되는 충전전류를 하향조절(통상 이때 충전전류는 0.5A)하게 된다.Subsequently, the PMU 400 detects a battery temperature corresponding to the voltage value V T2 converted into digital data, and if it is determined that the detected battery temperature is greater than or equal to a predetermined value (for example, 50 to 55 ° C.), the 'I2C' The terminal notifies the CPU 300 that the battery temperature is 50 to 55 ° C. or more. Accordingly, the CPU 300 'off' the 'FET' connected to the 'GPIO' terminal, and the resistance value R connected to the charging unit 200 becomes R = R3 + R4 so that the battery pack 100 Down-regulation of the charging current to charge (usually at this time the charging current is 0.5A).

또한, PMU(400)는 상기 검출된 배터리온도가 포화상태(예를 들어, 60℃ 이상)인 것으로 판단되면 'I2C' 단자를 통해 배터리온도가 포화상태임을 CPU(300)에 알린다. 이에 따라, CPU(300)는 'I2C' 단자를 통해 '슬립모드(sleep-mode)'로 전환할 것을 PMU(400)에 명령하고, PMU(400)는 각 구성요소들{충전부(200), CPU(300), 주변기기(500)}에의 전원공급을 '슬립모드'로 전환함으로써, 상기 각 구성요소에의 전원공급을 선별적으로 차단하게 된다. '슬립모드'로 전환시 PMU(400)는, 충전부(200)와 CPU(300), 그리고 주변기기(500) 가운데 특히 하드디스크(도면 미도시함)로의 전원공급을 차단할 수 있다.In addition, when the PMU 400 determines that the detected battery temperature is saturated (eg, 60 ° C. or more), the PMU 400 notifies the CPU 300 that the battery temperature is saturated through the 'I2C' terminal. Accordingly, the CPU 300 instructs the PMU 400 to switch to the 'sleep-mode' through the 'I2C' terminal, and the PMU 400 controls each component (charger 200, By switching the power supply to the CPU 300 and the peripheral device 500 into the 'sleep mode', the power supply to each of the components is selectively cut off. When switching to the 'sleep mode', the PMU 400 may cut off the power supply to the hard disk (not shown) among the charging unit 200, the CPU 300, and the peripheral device 500.

도 3은 배터리온도 상승에 따라 하향조절되는 충전전류를 예시한 것이고, 도 4는 본 발명에 따른 제 1 실시예에 적용되는 배터리온도 상승에 따른 휴대용 전자기기 손상 방지방법의 흐름도이다.3 is a view illustrating a charging current regulated downward according to a rise in battery temperature, and FIG. 4 is a flowchart of a method of preventing damage to a portable electronic device according to a rise in battery temperature applied to a first embodiment according to the present invention.

이하에서는, 상기와 같이 구성되는 배터리온도 상승에 따른 휴대용 전자기기 손상 방지장치의 동작에 대해, 도 3 및 도 4와 병행하여 상세히 설명하기로 한다.Hereinafter, the operation of the portable electronic device damage prevention apparatus according to the battery temperature rise configured as described above will be described in detail with reference to FIG. 3 and FIG. 4.

사용자의 의해 '고속충전모드'가 선택되면(S401의 "예"), CPU(300)는, 'GPIO'단자를 통해 연결된 'FET'를 '온(on)'시켜 배터리 팩(100)에 충전되는 충전전류가 높게 설정(통상 이때의 충전전류는 1A)되도록 제어한다.When the 'fast charge mode' is selected by the user (Yes in S401), the CPU 300 charges the battery pack 100 by turning on the 'FET' connected through the 'GPIO' terminal. The charging current is controlled to be set high (normally, the charging current at this time is 1A).

한편, 배터리 팩(100)은 내장된 온도센서로부터 출력되는 전압값(VT1)을 'TS'단자를 통해 PMU(400)로 전송한다. PMU(400)는, 상기 배터리 팩(100)으로부터 출력된 후 R1, R2에 의해 전압강하된 전압값(VT2)을 'ADCIN' 단자를 통해 입력받아 디지털데이터로 변환하여 전압값(VT2)에 대응되는 배터리온도를 검출한다.Meanwhile, the battery pack 100 transmits the voltage value V T1 output from the built-in temperature sensor to the PMU 400 through the 'TS' terminal. The PMU 400 receives the voltage value V T2 , which is output from the battery pack 100 and is then dropped by R1 and R2, through the 'ADCIN' terminal, and converts it into digital data to convert the voltage value V T2 . Detect the battery temperature corresponding to.

PMU(400)에 의해 이루어지는 배터리온도 검출과정은 다음과 같다. 도 3에 예시된 바와 같이, PMU(400)는 디지털데이터로 변환된 전압값(VT2)이, 2.5V인 경우 0℃, 1V인 경우 50℃, 0.5V인 경우 60℃인 것으로 각각의 배터리온도를 검출한다.The battery temperature detection process performed by the PMU 400 is as follows. As illustrated in FIG. 3, each PMU 400 has a voltage value V T2 converted to digital data, 0 ° C. for 2.5V, 50 ° C. for 1V, and 60 ° C. for 0.5V. Detect the temperature.

이어, PMU(400)는 상기 검출된 배터리온도가 소정 값(예를 들어, 50~55℃) 이상인 것으로 판단되면(S402의 "예") 'I2C' 단자를 통해 배터리온도가 50~55℃ 이상임 CPU(300)에 알린다. 이에 따라, CPU(300)는 'GPIO' 단자에 연결된 'FET'를 '오프(off)'시켜 배터리 팩(100)에 충전되는 충전전류를 하향조절(통상 이때의 충전전류는 0.5A)하게 된다(도 3을 참조)(S403).Subsequently, when the PMU 400 determines that the detected battery temperature is greater than or equal to a predetermined value (for example, 50 to 55 ° C.) (“YES” in S402), the battery temperature is 50 to 55 ° C. or more through the 'I2C' terminal. The CPU 300 is notified. Accordingly, the CPU 300 'off' the 'FET' connected to the 'GPIO' terminal to down-regulate the charging current charged in the battery pack 100 (normally, the charging current at this time is 0.5A). (See FIG. 3) (S403).

또한, PMU(400)는 상기 검출된 배터리온도가 포화상태(예를 들어, 60℃) 이상인 것으로 판단되면(S404의 "예") 'I2C' 단자를 통해 배터리온도가 포화상태임을 CPU(300)에 알린다. 이에 따라, CPU(300)는 'I2C' 단자를 통해 '슬립모드(sleep-mode)'로 전환할 것을 PMU(400)에 명령하고, PMU(400)는 각 구성요소들{충전부(200), CPU(300), 주변기기(500)}에의 전원공급을 '슬립모드'로 전환(S405)하게 된다.In addition, if the PMU 400 determines that the detected battery temperature is greater than or equal to a saturated state (eg, 60 ° C.) (“YES” in S404), the CPU 300 indicates that the battery temperature is saturated through an “I 2 C” terminal. Notify Accordingly, the CPU 300 instructs the PMU 400 to switch to the 'sleep-mode' through the 'I2C' terminal, and the PMU 400 controls each component (charger 200, The power supply to the CPU 300, the peripheral device 500} is switched to the 'sleep mode' (S405).

상술한 바와 같이, 본 발명이 도면에 도시된 실시예를 참고하여 설명되었으나, 이는 예시적인 것들에 불과하며, 본 발명이 속하는 기술 분야의 통상의 지식을 가진 자라면 본 발명의 요지 및 범위를 벗어나지 않으면서도 다양한 변형, 변경 및 균등한 타 실시예들이 가능하다는 것을 명백하게 알 수 있을 것이다. 따라서, 본 발명의 진정한 기술적 보호범위는 첨부된 등록청구범위의 기술적 사상에 의해 정해져야 할 것이다.As described above, the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary, and those of ordinary skill in the art to which the present invention pertains should not depart from the spirit and scope of the present invention. It will be apparent that various modifications, changes and equivalent other embodiments are possible without departing. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

상술한 바와 같이, 본 발명에 따른 배터리온도 상승에 따른 휴대용 전자기기 손상 방지 장치 및 방법은, 배터리온도 상승시 충전전류를 하향조절하여 배터리온도의 급격한 상승을 막고 더 나아가, 배터리온도가 포화상태인 경우 배터리에 연결되는 휴대용 전자기기 각 구성요소에의 전원공급을 선별적으로 차단함으로써, 휴대용 전자기기 내부에 각종 부품들의 온도상승을 막아 휴대용 전자기기의 손상을 방지하는 매우 유용한 발명인 것이다.As described above, the apparatus and method for preventing damage to the portable electronic device according to the increase in the battery temperature according to the present invention prevents a sudden increase in the battery temperature by down-regulating the charging current when the battery temperature rises, and further, the battery temperature is saturated. In this case, by selectively blocking the power supply to each component of the portable electronic device connected to the battery, it is a very useful invention to prevent the temperature rise of various components inside the portable electronic device to prevent damage to the portable electronic device.

Claims (10)

임의의 전원을 충전중인 휴대용 전자기기의 배터리 온도를 검출하는 배터리온도 검출수단; 및Battery temperature detecting means for detecting a battery temperature of a portable electronic device charging any power source; And 상기 검출된 배터리온도가 소정 값 이상이면, 상기 충전되는 전원의 충전전류 크기를 하향조절하는 충전전류 조절수단을 포함하는 배터리온도 상승에 따른 휴대용 전자기기 손상 방지장치.If the detected battery temperature is greater than or equal to a predetermined value, the portable electronic device damage prevention device according to the increase in battery temperature comprising a charging current adjusting means for down-regulating the magnitude of the charging current of the charged power. 제 1항에 있어서,The method of claim 1, 상기 소정 값은 50~55℃ 범위 내에 속하는 것을 특징으로 하는 배터리온도 상승에 따른 휴대용 전자기기 손상 방지장치.The predetermined value falls within the range of 50 ~ 55 ℃ portable electronic device damage prevention device according to the increase in battery temperature. 제 1항 또는 제 2항에 있어서,The method according to claim 1 or 2, 상기 휴대용 전자기기 각 구성요소에의 전원공급을 제어하는 전원공급 제어수단을 더 포함하되,Further comprising a power supply control means for controlling the power supply to each component of the portable electronic device, 상기 전원공급 제어수단은, 상기 검출된 배터리온도가 포화상태이면, 상기 각 구성요소에의 전원공급을 선별적으로 차단하는 것을 배터리온도 상승에 따른 휴대용 전자기기 손상 방지장치.And the power supply control means selectively blocks power supply to each component when the detected battery temperature is saturated. 제 3항에 있어서,The method of claim 3, wherein 상기 전원공급 제어수단은, 상기 각 구성요소에의 전원공급이 슬립모드(sleep-mode)가 되도록 제어하는 것을 특징으로 하는 배터리온도 상승에 따른 휴대용 전자기기 손상 방지장치.And the power supply control means controls the power supply to each of the components to be in a sleep mode. 제 3항에 있어서,The method of claim 3, wherein 상기 포화상태에서의 배터리온도는 60℃ 이상인 것을 특징으로 하는 배터리온도 상승에 따른 휴대용 전자기기 손상 방지장치.The battery temperature in the saturated state is a device for preventing damage to the portable electronic device according to the rise in battery temperature, characterized in that more than 60 ℃. 임의의 전원을 충전중인 휴대용 전자기기의 배터리 온도를 검출하는 제 1 단계;Detecting a battery temperature of a portable electronic device charging any power source; 상기 검출된 배터리온도가 소정 값 이상인지의 여부를 판단하는 제 2단계; 및A second step of determining whether the detected battery temperature is equal to or greater than a predetermined value; And 상기 제 2단계의 판단결과 배터리온도가 소정 값 이상이면, 상기 충전되는 전원의 충전전류 크기를 하향조절하는 제 3단계를 포함하는 배터리온도 상승에 따른 휴대용 전자기기 손상 방지방법.And a third step of downwardly adjusting the magnitude of the charging current of the charged power when the battery temperature is greater than or equal to a predetermined value as a result of the determination of the second step. 제 6항에 있어서,The method of claim 6, 상기 소정 값은 50~55℃ 범위 내에 속하는 것을 특징으로 하는 배터리온도 상승에 따른 휴대용 전자기기 손상 방지방법.The predetermined value is a method of preventing damage to a portable electronic device according to the increase in battery temperature, characterized in that within the range of 50 ~ 55 ℃. 제 6항 또는 제 7항에 있어서,The method according to claim 6 or 7, 상기 제 2단계의 판단결과 배터리온도가 포화상태이면, 상기 휴대용 전자기기 각 구성요소에의 전원공급이 선별적으로 차단되도록 제어하는 제 4단계를 더 포함하는 배터리온도 상승에 따른 휴대용 전자기기 손상 방지방법.And a fourth step of controlling power supply to each component of the portable electronic device to be selectively cut off when the battery temperature is saturated as a result of the determination of the second step. Way. 제 8항에 있어서,The method of claim 8, 상기 제 4단계는, 상기 각 구성요소에의 전원공급이 슬립모드(sleep-mode)가 되도록 제어하는 것을 특징으로 하는 배터리온도 상승에 따른 휴대용 전자기기 손상 방지방법.In the fourth step, the power supply to each component is controlled to be in a sleep mode (sleep-mode) characterized in that the portable electronic device damage prevention method according to the increase in battery temperature. 제 8항에 있어서,The method of claim 8, 상기 포화상태에서의 배터리온도는 60℃ 이상인 것을 특징으로 하는 배터리온도 상승에 따른 휴대용 전자기기 손상 방지방법.The battery temperature in the saturated state is 60 ℃ or more characterized in that the portable electronic device damage prevention method according to the increase in battery temperature.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111430824A (en) * 2020-03-31 2020-07-17 联想(北京)有限公司 Charging method and device and electronic equipment
US10992153B2 (en) * 2018-02-27 2021-04-27 Toyota Jidosha Kabushiki Kaisha Method for correcting a control map defining a limiting value of the charge/discharge electric power of a battery and battery system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10992153B2 (en) * 2018-02-27 2021-04-27 Toyota Jidosha Kabushiki Kaisha Method for correcting a control map defining a limiting value of the charge/discharge electric power of a battery and battery system
CN111430824A (en) * 2020-03-31 2020-07-17 联想(北京)有限公司 Charging method and device and electronic equipment
CN111430824B (en) * 2020-03-31 2021-12-24 联想(北京)有限公司 Charging method and device and electronic equipment

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