JP5573169B2 - Portable electronic devices - Google Patents

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JP5573169B2
JP5573169B2 JP2010001846A JP2010001846A JP5573169B2 JP 5573169 B2 JP5573169 B2 JP 5573169B2 JP 2010001846 A JP2010001846 A JP 2010001846A JP 2010001846 A JP2010001846 A JP 2010001846A JP 5573169 B2 JP5573169 B2 JP 5573169B2
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battery pack
portable electronic
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electronic device
threshold values
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JP2011142003A (en
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大輔 八木沼
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NEC Corp
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    • 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
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    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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    • Y02E60/10—Energy storage using batteries

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Description

本発明は、携帯電子機器に関し、更に詳しくは、電池パックを搭載した携帯電子機器に関する。   The present invention relates to a portable electronic device, and more particularly to a portable electronic device equipped with a battery pack.

近年、携帯電話機に代表される携帯電子機器では、高機能化や多機能化が進んでいる。このため、携帯電子機器では、電池パックの電池容量が短時間で消費される傾向にあり、電池パックを充電した後、再充電を行うまでの期間が短くなっている。   2. Description of the Related Art In recent years, mobile electronic devices typified by mobile phones have become highly functional and multifunctional. For this reason, in the portable electronic device, the battery capacity of the battery pack tends to be consumed in a short time, and the period until the battery pack is recharged after being charged is shortened.

電池パックは、電池セルを搭載している。電池セルについては、例えば、充放電を繰り返す毎に、電池容量が徐々に劣化すること、また、内部でガスが発生して外装体が膨れることが知られている。   The battery pack is equipped with a battery cell. Regarding battery cells, for example, it is known that the battery capacity gradually deteriorates each time charging / discharging is repeated, and that the exterior body swells by generating gas inside.

携帯電子機器のユーザは、電池パックの容量劣化に気付かないまま、携帯電子機器を使用し続ける場合がある。この場合には、ユーザが、携帯電子機器を通常通りに使用しても、短時間で再充電が必要となる。   A user of a portable electronic device may continue to use the portable electronic device without noticing the capacity deterioration of the battery pack. In this case, even if the user uses the portable electronic device as usual, recharging is required in a short time.

特許文献１〜３には、電池パックの異常を検知する技術が記載されている。特許文献１には、電池外装体の側面に、膨張検出手段を備えた電池搭載機器が記載されている。膨張検出手段は、電池が所定の大きさ以上に膨張すると、膨張検出信号を出力する。この電池搭載機器では、膨張検出信号に基づいて電池の異常を検知する。   Patent Documents 1 to 3 describe techniques for detecting abnormality of a battery pack. Patent Document 1 describes a battery-equipped device provided with expansion detection means on the side surface of the battery outer package. The expansion detection means outputs an expansion detection signal when the battery expands beyond a predetermined size. In this battery-equipped device, abnormality of the battery is detected based on the expansion detection signal.

特許文献２には、膨れ検出部と異常検知部とを備えた電池パックが記載されている。膨れ検出部は、筐体に収容された二次電池と、筐体の内壁との間に配設され、筐体の内壁と二次電池とによって加えられた圧力を検出する。異常検知部は、膨れ検出部で検出された圧力が、所定値を超えると二次電池の異常を検知する。   Patent Document 2 describes a battery pack that includes a swelling detection unit and an abnormality detection unit. The swollenness detection unit is disposed between the secondary battery housed in the casing and the inner wall of the casing, and detects the pressure applied by the inner wall of the casing and the secondary battery. The abnormality detection unit detects an abnormality of the secondary battery when the pressure detected by the swelling detection unit exceeds a predetermined value.

特許文献３には、検出手段と報知手段とを備えた蓄電池の寿命検知装置が記載されている。検出手段は、蓄電池の外部に配置され、蓄電池の膨張を検出する。報知手段は、検出手段の検出値が所定値を超えると、蓄電池が寿命である旨を報知する。   Patent Document 3 describes a storage battery life detection device including detection means and notification means. The detection means is arranged outside the storage battery and detects expansion of the storage battery. An alerting | reporting means alert | reports that a storage battery is a lifetime, when the detection value of a detection means exceeds predetermined value.

特開２００２−１１７９１１号公報JP 2002-117911 A 特開２００９−０７６２６５号公報JP 2009-076265 A 特開２００１−１６６０１６号公報JP 2001-166016 A

特許文献１には、膨張検出信号に基づいて電池の異常を検知すると、表示部に電池が異常であることを表示する旨が記載されている。しかし、特許文献１では、充放電時の電池の異常を単に表示するだけに過ぎず、電池搭載機器を駆動する電池パックの容量劣化の程度を、ユーザに報知することを考慮していない。   Patent Document 1 describes that when a battery abnormality is detected based on an expansion detection signal, the display unit displays that the battery is abnormal. However, Patent Document 1 merely displays a battery abnormality during charging / discharging, and does not consider notifying the user of the degree of capacity deterioration of the battery pack that drives the battery-equipped device.

特許文献２では、膨れ検出部として、いわゆるＰＴＣ（Positive Temperature Coefficient）素子を採用している。ＰＴＣ素子とは、２つの電極間に、導電性フィラーが分散され保持された材料を充填した構成を有する。このため、膨れ検出部で検出される圧力は、温度により変動する２つの電極間の抵抗値に対応しており、温度に依存する誤差を含んでいる。この誤差を軽減するために、異常検知部は、温度により変動する閾値を設定する必要がある。また、特許文献２には、第１及び第２の閾値を設定することが記載されているものの、第１及び第２の閾値に応じた報知を行う旨の記載はない。   In Patent Document 2, a so-called PTC (Positive Temperature Coefficient) element is employed as the swelling detection unit. The PTC element has a configuration in which a conductive filler is dispersed and held between two electrodes. For this reason, the pressure detected by the swell detector corresponds to the resistance value between the two electrodes that fluctuates depending on the temperature, and includes an error depending on the temperature. In order to reduce this error, the abnormality detection unit needs to set a threshold value that varies depending on the temperature. Further, although Patent Document 2 describes setting the first and second threshold values, there is no description that notification according to the first and second threshold values is performed.

特許文献３は、蓄電池の寿命を検知する技術であるが、蓄電池としてシール型鉛蓄電池を想定している。つまり、特許文献３に記載の技術は、リチウムイオン電池セルを搭載した電池パックで駆動される携帯電子機器を対象としていない。また、蓄電池の寿命を報知する際に、容量劣化の程度をユーザに報知することは考慮していない。   Patent Document 3 is a technique for detecting the life of a storage battery, and a sealed lead storage battery is assumed as the storage battery. That is, the technique described in Patent Document 3 is not intended for portable electronic devices that are driven by a battery pack in which lithium ion battery cells are mounted. Moreover, when notifying the lifetime of a storage battery, notifying a user of the extent of capacity degradation is not considered.

本発明は、電池パックの容量劣化の程度をユーザに報知できる携帯電子機器を提供することを目的とする。   An object of this invention is to provide the portable electronic device which can alert | report to a user the extent of capacity | capacitance degradation of a battery pack.

上記目的を達成するために、本発明は、 電池セルを搭載する電池パックと、
前記電池パックを収容する筐体と、
前記電池パックの外箱と前記筐体の内壁とに挟まれる位置に配置される圧力センサと、
前記圧力センサが検出する圧力を複数の閾値と比較する比較部と、
前記比較部による複数の閾値との比較結果に基づいて、複数種類の警報を発生させる警報発生部と、
文字情報を表示する表示部とを備えるとともに、
前記複数の閾値は前記電池パックの複数の異なる劣化レベルにそれぞれ対応するものであって、
前記警報発生部は、前記比較部による前記複数の閾値との比較結果に基づいて、前記電池パックの劣化レベルに対応するメッセージを前記表示部に表示させる携帯電子機器を提供する。 In order to achieve the above object, the present invention provides a battery pack including battery cells,
A housing for housing the battery pack;
A pressure sensor disposed at a position sandwiched between an outer box of the battery pack and an inner wall of the housing;
A comparison unit that compares the pressure detected by the pressure sensor with a plurality of threshold values;
Based on a comparison result with a plurality of threshold values by the comparison unit, an alarm generation unit that generates a plurality of types of alarms,
A display unit for displaying character information,
The plurality of threshold values respectively correspond to a plurality of different deterioration levels of the battery pack;
The alarm generation unit provides a portable electronic device that displays a message corresponding to a deterioration level of the battery pack on the display unit based on a comparison result with the plurality of threshold values by the comparison unit .

本発明の携帯電子機器では、電池パックの容量劣化の程度をユーザに報知できる。   In the portable electronic device of the present invention, the user can be notified of the degree of battery pack capacity deterioration.

本発明の携帯電子機器の概要を示すブロック図。1 is a block diagram showing an outline of a portable electronic device of the present invention. （ａ）及び（ｂ）は、本発明の実施形態に係る携帯電子機器の構成の一部を示す図。(A) And (b) is a figure which shows a part of structure of the portable electronic device which concerns on embodiment of this invention. （ａ）及び（ｂ）は、携帯電子機器のＡ−Ａ断面を示す図。(A) And (b) is a figure which shows the AA cross section of a portable electronic device. 携帯電子機器の機能を示すブロック図。The block diagram which shows the function of a portable electronic device.

図１は、本発明の携帯電子機器の概要を示すブロック図である。本発明の携帯電子機器１は、最小構成として、電池セルを搭載する電池パックと、電池パックを収容する筐体と、圧力センサ２と、比較部３と、警報発生部４とを備える。圧力センサ２は、電池パックの外箱と筐体の内壁とに挟まれる位置に配置される。比較部３は、圧力センサ２が検出する圧力を複数の閾値と比較する。警報発生部４は、比較部３による複数の閾値との比較結果に基づいて、複数種類の警報を発生させる。   FIG. 1 is a block diagram showing an outline of a portable electronic device of the present invention. The portable electronic device 1 of the present invention includes, as a minimum configuration, a battery pack on which battery cells are mounted, a housing that houses the battery pack, a pressure sensor 2, a comparison unit 3, and an alarm generation unit 4. The pressure sensor 2 is disposed at a position sandwiched between the outer box of the battery pack and the inner wall of the housing. The comparison unit 3 compares the pressure detected by the pressure sensor 2 with a plurality of threshold values. The alarm generation unit 4 generates a plurality of types of alarms based on the comparison result with the plurality of threshold values by the comparison unit 3.

ここで、電池パックに搭載された電池セルは、容量劣化に伴って外装体が徐々に膨れることが知られている。このため、電池セルの膨れに応じて、電池パックも膨れることになる。圧力センサ２は、電池パックの外箱と筐体の内壁との間に配置されているので、電池セルの膨れに応じた圧力を電池パックの外箱から受ける。携帯電子機器１では、圧力センサ２が検出する圧力と比較される閾値を複数設定しており、比較結果に基づいて、複数種類の警報を発生させている。従って、複数の閾値を電池パックの複数の劣化レベルにそれぞれ対応させた場合には、上記比較結果に基づいて、複数種類の警報を発生させることで、電池パックの容量劣化の程度（度合い）をユーザに報知できる。   Here, as for the battery cell mounted in the battery pack, it is known that an exterior body will swell gradually with capacity degradation. For this reason, a battery pack will also swell according to the swelling of a battery cell. Since the pressure sensor 2 is disposed between the outer box of the battery pack and the inner wall of the housing, the pressure sensor 2 receives a pressure corresponding to the swelling of the battery cell from the outer box of the battery pack. In the portable electronic device 1, a plurality of threshold values to be compared with the pressure detected by the pressure sensor 2 are set, and a plurality of types of alarms are generated based on the comparison result. Therefore, when a plurality of threshold values are respectively associated with a plurality of deterioration levels of the battery pack, a plurality of types of alarms are generated based on the comparison result, thereby determining the degree (degree) of capacity deterioration of the battery pack. Users can be notified.

以下、図面を参照し、本発明の例示的な実施の形態について詳細に説明する。図２（ａ）及び（ｂ）は、本発明の実施形態に係る携帯電子機器の構成の一部を示す平面図及び斜視図である。携帯電子機器１０は、例えば、折畳み式の携帯電話機であって、上部筐体１１と、ヒンジ部１２と、下部筐体１３とを備える。携帯電子機器１０では、上部筐体１１と下部筐体１３とがヒンジ部１２により相互に回転可能に結合されており、折畳み状態と、図２に示す展開状態との間で移行可能である。   Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings. 2A and 2B are a plan view and a perspective view showing a part of the configuration of the portable electronic device according to the embodiment of the present invention. The mobile electronic device 10 is, for example, a foldable mobile phone, and includes an upper housing 11, a hinge portion 12, and a lower housing 13. In the portable electronic device 10, the upper housing 11 and the lower housing 13 are coupled to each other by the hinge portion 12 so as to be rotatable with each other, and can be shifted between the folded state and the unfolded state shown in FIG. 2.

携帯電子機器１０は、リチウムイオン電池セル（以下、電池セル）が搭載された電池パックにより駆動される。下部筐体１３の裏面には、電池パックを収容するための空間（電池収容部）１３ａが形成されている。電池収容部１３ａの内壁には、電池端子部１４と圧力センサ１５とが配置されている。電池端子部１４は、電池収容部１３ａに収容される電池パックと電気的に接続される端子である。圧力センサ１５は、圧電素子で構成されており、任意の圧力が測定可能である。   The portable electronic device 10 is driven by a battery pack on which lithium ion battery cells (hereinafter referred to as battery cells) are mounted. A space (battery housing portion) 13 a for housing the battery pack is formed on the back surface of the lower housing 13. A battery terminal portion 14 and a pressure sensor 15 are arranged on the inner wall of the battery housing portion 13a. The battery terminal part 14 is a terminal electrically connected to the battery pack accommodated in the battery accommodating part 13a. The pressure sensor 15 is composed of a piezoelectric element, and can measure an arbitrary pressure.

図３を参照して、電池収容部１３ａに電池パックを収容した状態について説明する。図３は、図２（ａ）に示すＡ−Ａ線に沿った断面を示す図である。電池パック１７は、図３（ａ）に示すように、電池収容部１３ａに収容されている。電池収容部１３ａは、開口に蓋部材１６が取り付けられており、収容された電池パック１７を保持している。   With reference to FIG. 3, the state which accommodated the battery pack in the battery accommodating part 13a is demonstrated. FIG. 3 is a view showing a cross section taken along line AA shown in FIG. The battery pack 17 is accommodated in the battery accommodating portion 13a as shown in FIG. The battery accommodating portion 13a has a lid member 16 attached to the opening, and holds the accommodated battery pack 17.

圧力センサ１５は、下部筐体１３の内部に実装された基板１８上に搭載され、電池パック１７の外箱（外装体）１７ａと電池収容部１３ａの内壁とに挟まれる位置に配置されている。ここで、電池パック１７は、充放電が繰り返されると、電池セル内部の電極体の撓みにより、その外装体が膨れることが知られている。つまり、電池パック１７は、ユーザの使用により充放電が繰り返されると、容量劣化が進み、この容量劣化の度合い（劣化レベル）に応じて、その外形寸法が徐々に増大する。図３（ｂ）は、電池パック１７が容量劣化により膨れた状態を示している。圧力センサ１５は、図３（ｂ）に示すように、電池パック１７の外箱１７ａの膨れた部分１７ｂと接触しており、この膨れた部分１７ｂから受ける圧力を検出或いは測定する。   The pressure sensor 15 is mounted on a substrate 18 mounted inside the lower housing 13 and is disposed at a position sandwiched between an outer box (exterior body) 17a of the battery pack 17 and an inner wall of the battery housing portion 13a. . Here, when the battery pack 17 is repeatedly charged and discharged, it is known that the exterior body swells due to the bending of the electrode body inside the battery cell. In other words, when the battery pack 17 is repeatedly charged and discharged by the use of the user, the capacity deterioration progresses, and the outer dimensions of the battery pack 17 gradually increase according to the degree of the capacity deterioration (deterioration level). FIG. 3B shows a state where the battery pack 17 is swollen due to capacity deterioration. As shown in FIG. 3B, the pressure sensor 15 is in contact with the swollen portion 17b of the outer box 17a of the battery pack 17, and detects or measures the pressure received from the swollen portion 17b.

次に、図４に示す機能ブロックを参照して、携帯電子機器１０の動作について説明する。携帯電子機器１０は、図示のように、上記圧力センサ１５と、制御ＩＣ部１９と、警報発生部２０とを備える。   Next, the operation of the portable electronic device 10 will be described with reference to the functional blocks shown in FIG. As shown in the figure, the portable electronic device 10 includes the pressure sensor 15, a control IC unit 19, and an alarm generation unit 20.

圧力センサ１５は、電池パック１７の外箱１７ａの膨れた部分１７ｂから受ける圧力を検出すると、検出した圧力情報を制御ＩＣ部１９に受け渡す。制御ＩＣ部１９は、圧力センサ１５から受け渡された圧力情報を複数の閾値と比較し、比較結果に基づいて警報発生部２０を制御する。複数の閾値は、電池パック１７の複数の劣化レベルにそれぞれ対応するように設定されている。   When the pressure sensor 15 detects the pressure received from the swollen portion 17 b of the outer case 17 a of the battery pack 17, it passes the detected pressure information to the control IC unit 19. The control IC unit 19 compares the pressure information delivered from the pressure sensor 15 with a plurality of threshold values, and controls the alarm generation unit 20 based on the comparison result. The plurality of threshold values are set so as to correspond to the plurality of deterioration levels of the battery pack 17, respectively.

警報発生部２０は、例えば、表示部２１、スピーカ部２２及びバイブモータ部２３を含む。警報発生部２０は、制御ＩＣ部１９に制御され、上記比較結果に基づいた複数種類の警報を発生する。   The alarm generation unit 20 includes, for example, a display unit 21, a speaker unit 22, and a vibrator motor unit 23. The alarm generation unit 20 is controlled by the control IC unit 19 and generates a plurality of types of alarms based on the comparison result.

警報の種類としては、例えば、電池パック１７の容量劣化を報知する警報や、電池パック１７の交換を促す警報が挙げられる。以下では、３つの閾値（第１〜第３の閾値）を設定した場合での警報を例示する。なお、閾値の大きさは、第１の閾値＜第２の閾値＜第３の閾値とする。   Examples of the type of alarm include an alarm for notifying the capacity deterioration of the battery pack 17 and an alarm for prompting replacement of the battery pack 17. In the following, an alarm when three threshold values (first to third threshold values) are set will be exemplified. Note that the magnitude of the threshold is first threshold <second threshold <third threshold.

一例として、圧力センサ１５で検出された圧力が、第１の閾値を超えると、表示部２１に「電池パックが劣化気味です。」とのメッセージを表示する。また、圧力センサ１５で検出された圧力が、第２の閾値を超えると、表示部２１に「電池パックが劣化しています。交換を検討して下さい。」とのメッセージを表示する。さらに、圧力センサ１５で検出された圧力が、第３の閾値を超えると、表示部２１に「電池パックが寿命です。交換して下さい。」とのメッセージを表示する。   As an example, when the pressure detected by the pressure sensor 15 exceeds the first threshold, a message “Battery pack is degraded” is displayed on the display unit 21. Further, when the pressure detected by the pressure sensor 15 exceeds the second threshold value, a message “Battery pack has deteriorated. Please consider replacement.” Is displayed on the display unit 21. Further, when the pressure detected by the pressure sensor 15 exceeds the third threshold value, a message “Battery pack has reached the end of life. Please replace it” is displayed on the display unit 21.

このように、表示部２１に上記各メッセージを表示することで、電池パック１７の容量劣化の度合い、即ち、電池の寿命が近づいていることや、電池が寿命であり電池交換が必要であることを、ユーザに把握させることができる。また、複数の閾値を設定することで、ユーザに、電池パック１７の容量劣化を段階的に報知できる。   Thus, by displaying the above messages on the display unit 21, the degree of capacity deterioration of the battery pack 17, that is, the battery life is approaching, or the battery is at the end of life and needs to be replaced. Can be grasped by the user. In addition, by setting a plurality of threshold values, it is possible to notify the user of the capacity deterioration of the battery pack 17 in a stepwise manner.

また、表示部２１にメッセージを表示すると同時に、スピーカ部２２からメロディ音等を発生させる、或いは、バイブモータ部２３により振動を発生させてもよい。この場合には、電池パック１７の容量劣化の度合いが進む程、音や振動を大きくしてもよい。このように、表示部２１だけでなく、スピーカ部２２やバイブモータ部２３も用いることで、電池パック１７の容量劣化の度合いを、より確実にユーザに把握させることが可能となる。   Further, at the same time as displaying a message on the display unit 21, a melody sound or the like may be generated from the speaker unit 22, or vibration may be generated by the vibrator motor unit 23. In this case, sound and vibration may be increased as the degree of capacity deterioration of the battery pack 17 progresses. Thus, by using not only the display unit 21 but also the speaker unit 22 and the vibrator motor unit 23, it is possible to make the user more surely understand the degree of capacity deterioration of the battery pack 17.

本実施形態では、電池パック１７の複数の劣化レベルにそれぞれ対応させた閾値を複数設定し、これらの閾値と圧力センサ１５が検出する圧力とを比較した比較結果に基づいて、複数種類の警報を発生させる。従って、電池パック１７の劣化レベルをユーザに報知できる。   In the present embodiment, a plurality of threshold values corresponding to a plurality of deterioration levels of the battery pack 17 are set, and a plurality of types of alarms are issued based on a comparison result comparing these threshold values with the pressure detected by the pressure sensor 15. generate. Therefore, the deterioration level of the battery pack 17 can be notified to the user.

上記実施形態では、警報として、電池パック１７の容量劣化を報知する警報や電池パック１７の交換を促す警報を例示したが、これに限定されない。一例として、電池パック１７の容量劣化が過度に進んでいる場合には、携帯電子機器１０の使用中止を促す警報を発生させるようにしてもよい。   In the said embodiment, although the alarm which alert | reports the capacity deterioration of the battery pack 17 and the alarm which urges | exchanges the battery pack 17 were illustrated as an alarm, it is not limited to this. As an example, when the capacity deterioration of the battery pack 17 is excessively advanced, an alarm that prompts the user to stop using the mobile electronic device 10 may be generated.

また、上記実施形態では、３つの閾値を設定したが、これに限定されず、更に複数の閾値を設定し、電池パック１７の劣化レベルをより細かく区分した上で、劣化レベルに応じた警報を発生するようにしてもよい。   Moreover, in the said embodiment, although three threshold values were set, it is not limited to this, Furthermore, after setting a plurality of threshold values and classifying the deterioration level of the battery pack 17 more finely, an alarm corresponding to the deterioration level is issued. It may be generated.

さらに、上記実施形態では、携帯電子機器１０として折畳み式の携帯電話機を示したが、これに限らず、いわゆる一体型、スライド型の携帯電話機であってもよく、また、電池パック１７を収容する筐体を備えた適宜の携帯電子機器であってもよい。   Furthermore, in the above-described embodiment, a foldable mobile phone is shown as the mobile electronic device 10. However, the mobile electronic device 10 is not limited to this, and may be a so-called integrated or slide-type mobile phone and accommodates the battery pack 17. An appropriate portable electronic device including a housing may be used.

以上、本発明をその好適な実施形態に基づいて説明したが、本発明の携帯電子機器は、上記実施形態の構成にのみ限定されるものではなく、上記実施形態の構成から種々の修正及び変更を施したものも、本発明の範囲に含まれる。   Although the present invention has been described based on the preferred embodiment, the portable electronic device of the present invention is not limited to the configuration of the above embodiment, and various modifications and changes can be made from the configuration of the above embodiment. Those subjected to are also included in the scope of the present invention.

１，１０：携帯電子機器
２，１５：圧力センサ
３：比較部
４，２０：警報発生部
１１：上部筐体
１２：ヒンジ部
１３：下部筐体
１３ａ：電池収容部
１４：電池端子部
１６：蓋部材
１７：電池パック
１７ａ：外箱（外装体）
１７ｂ：外箱の接触部分
１８：基板
１９：制御ＩＣ部
２１：表示部
２２：スピーカ部
２３：バイブモータ部 DESCRIPTION OF SYMBOLS 1,10: Portable electronic device 2, 15: Pressure sensor 3: Comparison part 4, 20: Alarm generation part 11: Upper housing | casing 12: Hinge part 13: Lower housing 13a: Battery accommodating part 14: Battery terminal part 16: Lid member 17: Battery pack 17a: Outer box (exterior body)
17b: Contact portion 18 of the outer box 18: Substrate 19: Control IC unit 21: Display unit 22: Speaker unit 23: Vibrating motor unit

Claims (4)

電池セルを搭載する電池パックと、
前記電池パックを収容する筐体と、
前記電池パックの外箱と前記筐体の内壁とに挟まれる位置に配置される圧力センサと、
前記圧力センサが検出する圧力を複数の閾値と比較する比較部と、
前記比較部による複数の閾値との比較結果に基づいて、複数種類の警報を発生させる警報発生部と、
文字情報を表示する表示部とを備えるとともに、
前記複数の閾値は前記電池パックの複数の異なる劣化レベルにそれぞれ対応するものであって、
前記警報発生部は、前記比較部による前記複数の閾値との比較結果に基づいて、前記電池パックの劣化レベルに対応するメッセージを前記表示部に表示させる
携帯電子機器。 A battery pack carrying battery cells;
A housing for housing the battery pack;
A pressure sensor disposed at a position sandwiched between an outer box of the battery pack and an inner wall of the housing;
A comparison unit that compares the pressure detected by the pressure sensor with a plurality of threshold values;
Based on a comparison result with a plurality of threshold values by the comparison unit, an alarm generation unit that generates a plurality of types of alarms,
A display unit for displaying character information,
The plurality of threshold values respectively correspond to a plurality of different deterioration levels of the battery pack;
The alarm generation unit is a portable electronic device that displays a message corresponding to a deterioration level of the battery pack on the display unit based on a comparison result with the plurality of threshold values by the comparison unit . さらに、警報音を出力するスピーカ部を備え、  Furthermore, a speaker unit that outputs an alarm sound is provided,
前記警報発生部は、前記比較部による前記複数の閾値との比較結果に基づいて、前記スピーカ部が出力する警報音の音量を変化させる  The alarm generation unit changes a volume of an alarm sound output from the speaker unit based on a comparison result with the plurality of threshold values by the comparison unit.
請求項１に記載の携帯電子機器。  The portable electronic device according to claim 1. さらに、前記携帯電子機器を振動させるバイブモータ部を備え、  Furthermore, a vibrator motor unit that vibrates the portable electronic device is provided,
前記警報発生部は、前記比較部による前記複数の閾値との比較結果に基づいて、前記バイブモータ部が発生させる振動の大きさを変化させる  The alarm generation unit changes a magnitude of vibration generated by the vibrator motor unit based on a comparison result with the plurality of threshold values by the comparison unit.
請求項１又は請求項２に記載の携帯電子機器。  The portable electronic device according to claim 1 or 2. 前記警報が、前記電池パックの劣化を報知する警報と、前記電池パックの交換を促す警報と、携帯電子機器の使用中止を促す警報とを含む、請求項１ないし請求項３の何れか一項に記載の携帯電子機器。 Said alarm is an alarm for informing the deterioration of the battery pack, the comprises an alarm prompting the replacement of the battery pack, and a warning prompting the withdrawal of the portable electronic device, any one of claims 1 to 3 The portable electronic device as described in.
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