WO2014065006A1 - Charger cell capacitance display device - Google Patents

Charger cell capacitance display device Download PDF

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Publication number
WO2014065006A1
WO2014065006A1 PCT/JP2013/073470 JP2013073470W WO2014065006A1 WO 2014065006 A1 WO2014065006 A1 WO 2014065006A1 JP 2013073470 W JP2013073470 W JP 2013073470W WO 2014065006 A1 WO2014065006 A1 WO 2014065006A1
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Prior art keywords
emitting diode
light emission
light
battery
light emitting
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PCT/JP2013/073470
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French (fr)
Japanese (ja)
Inventor
守 倉石
慎司 広瀬
鈴木　恒雄
渉 牧志
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株式会社豊田自動織機
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Publication of WO2014065006A1 publication Critical patent/WO2014065006A1/en

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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
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/3644—Constructional arrangements
    • G01R31/3646—Constructional arrangements for indicating electrical conditions or variables, e.g. visual or audible indicators
    • 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
    • H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
    • 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
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • H02J7/0049—Detection of fully charged condition
    • 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

Definitions

  • the present invention relates to a charger battery capacity display device that visually displays the state of charge of a battery such as an electric vehicle or an electric appliance.
  • a charging state indicating the degree of charging is displayed using a display device such as a liquid crystal.
  • a display method a method of processing the data of the charge rate (SOC: State Of Charge), which is the ratio of the battery capacity to the full charge capacity of the battery, into display data and displaying it on a display device such as a liquid crystal is used. ing.
  • this method lights continuously when the charging rate is low, changes from continuous lighting to blinking when the charging amount is medium, and decreases for a short time when the charging rate further increases.
  • the light emission pattern is such that the number of blinks is increased by turning on the light, and the light is turned off when the battery is fully charged.
  • the horizontal axis represents time, and the lighting time is high level and the lighting time is low level. Further, in FIG. 4, a section for displaying the charging rate (charge amount) is indicated by a solid line, a section for indicating the charge pattern is indicated by a broken line, and the display of the charge rate (charge amount) and the display of the charge pattern are alternately switched. Show.
  • FIG. 4A shows a light emission pattern in a state where the charging rate is low, for example, 0 to 30%. In this case, the light emission pattern is continuously lit.
  • FIG. 4B shows a light emission pattern in a medium state such as a charging rate of 30 to 70%, for example, and a blinking pattern in which a short light extinction section is inserted in the lighting section.
  • the lighting time is shortened to increase the number of flashes, and when the state of full charge is reached, the light emission pattern is turned off as shown in FIG. 4D. . That is, the degree of charge is displayed by a light emission pattern in which the light emission time per unit time of the light emitting diode is shortened as the degree of charge of the battery increases.
  • the above-described method of displaying using a display device such as a liquid crystal is difficult to realize at low cost because the display device such as a liquid crystal is expensive.
  • the light emission time per unit time of the light emitting diode is shortened, and the method of displaying the charge level by the light emission pattern that turns off when the battery is fully charged turns off the light emitting diode. It is not possible to determine whether the battery is fully charged or the light emitting diode is malfunctioning.
  • the present invention provides a charger battery capacity display device that allows a user to clearly grasp the degree of charge of a battery by visual recognition and that can be realized with a simple configuration at low cost.
  • the charger battery capacity display device includes at least one light-emitting diode that displays the degree of charge of the battery, and the light emission time per unit time of the light-emitting diode increases as the degree of charge of the battery increases. And a control unit that controls the light emission of the light emitting diode so as to obtain a blinking pattern.
  • control unit emits light from the photodiode so that a blinking pattern in which the light emitting diode blinks at a first predetermined time interval and then turns off for a second predetermined time longer than the first predetermined time is repeated. And the light emission of the light emitting diode is controlled such that the number of blinks at the first predetermined time interval becomes a light emission pattern that increases as the degree of charging of the battery increases.
  • control unit controls the light emission of the photodiode so that the light-emitting diode is turned off after being turned on for a certain period of time, and the degree of charging of the battery increases during the time of turning off the light-emitting diode.
  • the light emission of the light emitting diode is controlled so that the light emission pattern decreases with time.
  • control unit controls the light emission of the light emitting diode so that the light emitting diode has a light emission pattern that is continuously lit when the battery is fully charged.
  • control unit obtains the charging rate of the battery calculated by the electronic control unit of the battery pack provided on the electric vehicle side on which the battery is mounted from the electric vehicle side via a communication line, Based on the acquired charging rate, the light emission of the light emitting diode is controlled so that a light emission pattern corresponding to the degree of charge of the battery is obtained.
  • the degree of charge of a battery can be displayed by using blinking of one light emitting diode, and since no liquid crystal is used, an electric battery capacity display device having a simple configuration can be realized at low cost. it can.
  • FIG. 1 shows a first embodiment of display of the degree of charge by the charger battery capacity display device of the present invention.
  • the horizontal axis represents time
  • the vertical axis represents the stage of increase in the charging rate (SOC), which is the degree of charging of the battery.
  • SOC charging rate
  • a circle mark with a mesh pattern represents a state where the light emitting diode is turned on
  • a blank circle mark represents a state where the light emitting diode is turned off.
  • FIG. 1 (a) shows a display example by a light emitting diode when the charging rate of the battery is low and the charging rate (SOC) is 0 to 20%.
  • the light emitting diode has a light emitting pattern that repeats a blinking pattern of lighting for 1 second every 5 seconds and turning off for 4 seconds.
  • FIG. 1B shows a display example by a light emitting diode when the charging rate (SOC) is 20 to 40%.
  • the light emitting diode has a light emitting pattern in which a blinking pattern is turned on every 4 seconds for 1 second and then turned off for 3 seconds.
  • FIG. 1 (c) shows a display example by a light emitting diode when the charging rate (SOC) is 40 to 60%.
  • the light emitting diode has a light emitting pattern that repeats a blinking pattern in which the light emitting diode is turned on for 1 second every 3 seconds and turned off for 2 seconds.
  • FIG. 1 (d) shows a display example by a light emitting diode when the charging rate (SOC) is 60 to 80%.
  • the light emitting diode has a light emitting pattern that repeats a blinking pattern in which the light emitting diode is turned on for 1 second every 2 seconds and turned off for 1 second.
  • FIG. 1 (e) shows a display example by a light emitting diode when the charging rate (SOC) is 80 to 100%.
  • the display example in FIG. 1E is a light emission pattern in which the light emitting diodes are continuously lit.
  • the light emitting diode blinks.
  • the charging rate is full (the charging rate (SOC) is 100%)
  • the light emitting diode lights continuously. It is good also as a structure which displays so that it may become easy to distinguish the state of a full charge and the state in charge easily by setting it as a light emission pattern.
  • the control unit (not shown) in the charger battery capacity display device has a light emitting time per unit time (lighting time) of the flashing light emitting diode as the degree of charging indicated by the charging rate (SOC) or the like increases.
  • the light emission of the light-emitting diode is controlled so that the light emission pattern becomes longer ( ⁇ number of light emission times).
  • FIG. 2 shows a second embodiment of the display of the state of charge by the charger battery capacity display device of the present invention.
  • the horizontal axis represents time
  • the vertical axis represents the stage of increase in the charging rate (SOC), which is the degree of charging of the battery.
  • SOC charging rate
  • a circle mark with a mesh pattern represents a state where the light emitting diode is turned on
  • a blank circle mark represents a state where the light emitting diode is turned off.
  • FIG. 2 (a) shows a display example by a light emitting diode when the charging rate of the battery is low and the charging rate (SOC) is 0 to 25%.
  • the light emitting diode is a light emitting pattern that repeats a blinking pattern in which the light emitting diode is turned on once for 0.2 seconds and then turned off for 2 seconds.
  • FIG. 2B shows a display example by a light emitting diode when the charging rate (SOC) is 26 to 50%.
  • SOC charging rate
  • FIG. 2 (c) shows a display example by a light emitting diode when the charging rate (SOC) is 51 to 75%.
  • SOC charging rate
  • FIG. 2 (d) shows a display example using a light emitting diode when the charging rate (SOC) is 76 to 99%.
  • the display example of FIG. 2D shows a blinking pattern in which the light emitting diode is lit for 0.2 seconds and then lit for 0.2 seconds and then is lit again for 0.2 seconds.
  • the flashing pattern to be repeated is a light emission pattern.
  • FIG. 2 (e) shows a display example by a light emitting diode when the charging rate (SOC) is 100%.
  • the display example in FIG. 2E is a light emission pattern in which the light emitting diodes are continuously lit.
  • the light emitting time per unit time of the light-emitting diode that blinks as the degree of charging increases by the control unit (not shown) in the charger battery capacity display device.
  • the light emission of the light emitting diode is controlled so that the light emission pattern increases (lighting time ⁇ number of times of light emission). The user can clearly grasp the degree of charge by visual observation of such a light emission pattern, and the visibility is greatly improved.
  • the LED is fully charged if the LED is continuously lit as an extension of the light emitting pattern in which the light emitting time of the flashing LED increases per unit time.
  • the charging state and the charging completion state are easily distinguished and visually recognized.
  • the lighting time (0.2 seconds) is provided once or more, and then a long light extinction time (2 seconds) is provided, that is, blinking at the first predetermined time interval.
  • a long light extinction time (2 seconds) is provided, that is, blinking at the first predetermined time interval.
  • FIG. 3 shows an example of the appearance of the stationary charger 10 to which the charger battery capacity display device of the present invention is applied.
  • 1 is a display lamp indicating standby
  • 2 is a display lamp indicating charging
  • 3 is a display lamp indicating completion of charging
  • 4 is a display lamp indicating abnormality.
  • light-emitting elements with low cost and low current consumption such as light-emitting diodes, can be used.
  • the status lamp 2 indicating that charging is in progress displays the degree of charging (progress status) by the light emission pattern shown in FIG. 1 or FIG.
  • the state lamp 2 indicating charging and the display lamp 3 indicating completion of charging can be used in combination by changing the light emission pattern with one lamp as shown in FIG.
  • the stationary charger 10 is connected to an electric vehicle 20 such as a forklift with a charging cable 30 and supplies a charging current to a battery (not shown) of the electric vehicle 20.
  • the charging cable 30 includes a power line 31 for supplying a charging current and a communication line 32 such as a CAN (Controller Area Network).
  • CAN is a network standard that is generally used in the control of vehicles and the like, and is standardized as a vehicle-mounted LAN protocol that realizes communication between a plurality of nodes mounted on a vehicle or the like.
  • ECU Electronic Control Unit
  • the charging rate data is processed into the light emission pattern data of the display lamp 2, and the battery charging degree (progress status) of the electric vehicle 20 is displayed by the display lamp 2. .
  • a highly accurate charging rate ( The degree of charge based on the SOC) can be displayed.
  • control unit of the stationary charger 10 obtains a charging rate (SOC) before charging from the battery voltage before starting charging, estimates the charging degree from the current integrated amount of the charging current, and according to the charging degree. It can also be set as the structure which displays a charge degree by the display lamp 2.
  • SOC charging rate
  • a table storing in advance the correspondence relationship between the open circuit voltage (OCV) of the battery and the charging rate (SOC) is prepared. Referring to the table, the charging rate (SOC) can be obtained from the battery voltage before the start of charging.
  • the charger battery capacity display device has been described with respect to the configuration example provided on the charger side, but the charger battery capacity display device may be provided in a device / apparatus for holding a battery such as an electric vehicle.
  • the charger battery capacity display device of the present invention has been described above.
  • the present invention is not limited to the above-described embodiment, and various configurations or embodiments can be made without departing from the gist of the present invention. Can take.

Abstract

Provided is a charger cell capacitance display device in which the charge state of a cell can be clearly ascertained by visual confirmation, and that is implemented in a low-cost, simple configuration. Light emission by a light-emitting diode is controlled so as to obtain a blinking pattern in which the light-emission time of the light-emitting diode per unit of time is increased as the degree of charging of the cell increases. In other words, light emission by the light-emitting diode is controlled so as to obtain, as the light emission pattern for repeating a blinking pattern in which the light-emitting diode is turned on for a fixed length of time and is thereafter turned off, a light emission pattern in which the off time decreases as the degree of charging of the cell increases. Alternatively, light emission by the light-emitting diode is controlled so that the light-emitting diode has blinked for an interval of a first predetermined length of time, and is thereafter turned of for a second predetermined length of time that is greater than the first predetermined length of time, and light emission by the light-emitting diode is controlled so as to obtain a light emission pattern in which the number of blinks in an interval of the first predetermined length of time increases as the degree of charging increases.

Description

充電器電池容量表示装置Charger battery capacity display device
　本発明は、電動車両や電気器具等の電池の充電状態を視覚的に表示する充電器電池容量表示装置に関する。 The present invention relates to a charger battery capacity display device that visually displays the state of charge of a battery such as an electric vehicle or an electric appliance.
　フォークリフト等の電動車両の電池を充電する外置き充電器等では、充電度合いを示す充電状態の表示を、液晶等の表示装置を用いて実施している。表示の手法としては、電池の満充電容量に対する電池容量の比率である充電率（ＳＯＣ：Ｓｔａｔｅ　Ｏｆ　Ｃｈａｒｇｅ）のデータを表示用のデータに加工して液晶等の表示装置に表示する手法が用いられている。 In an external charger or the like for charging a battery of an electric vehicle such as a forklift, a charging state indicating the degree of charging is displayed using a display device such as a liquid crystal. As a display method, a method of processing the data of the charge rate (SOC: State Of Charge), which is the ratio of the battery capacity to the full charge capacity of the battery, into display data and displaying it on a display device such as a liquid crystal is used. ing.
　そのほか、充電器による電池の充電度合いを示す充電率の表示方法として、充電率に応じて発光ダイオードの発光パターンを変化させる手法が例えば下記の特許文献１等によって知られている。 In addition, as a method for displaying the charge rate indicating the degree of charge of the battery by the charger, a method of changing the light emission pattern of the light emitting diode according to the charge rate is known, for example, from Patent Document 1 below.
　この手法は、図４に示すように、充電率が低い状態では連続的に点灯し、充電量が中程度の状態になると連続点灯から点滅表示に変化させ、充電率が更に高くなると短時間の点灯により点滅回数を増やし、満充電状態になると消灯する発光パターンとしている。 As shown in FIG. 4, this method lights continuously when the charging rate is low, changes from continuous lighting to blinking when the charging amount is medium, and decreases for a short time when the charging rate further increases. The light emission pattern is such that the number of blinks is increased by turning on the light, and the light is turned off when the battery is fully charged.
　なお、図４において、横軸は時間を表し、点灯時をハイレベルで消灯時をローレベルで表している。また、図４において充電率（充電量）を表示する区間を実線で示し、充電パターンを示す区間を破線で示し、充電率（充電量）の表示と充電パターンの表示とが交互に切り替わる例を示している。 In FIG. 4, the horizontal axis represents time, and the lighting time is high level and the lighting time is low level. Further, in FIG. 4, a section for displaying the charging rate (charge amount) is indicated by a solid line, a section for indicating the charge pattern is indicated by a broken line, and the display of the charge rate (charge amount) and the display of the charge pattern are alternately switched. Show.
　図４の（ａ）は、充電率が例えば０～３０％のように低い状態の発光パターンを示し、この場合、連続的に点灯する発光パターンとしている。図４の（ｂ）は、充電率が例えば３０～７０％のように中程度の状態の発光パターンを示し、点灯区間中に短い消灯区間が挿入される点滅パターンとしている。 FIG. 4A shows a light emission pattern in a state where the charging rate is low, for example, 0 to 30%. In this case, the light emission pattern is continuously lit. FIG. 4B shows a light emission pattern in a medium state such as a charging rate of 30 to 70%, for example, and a blinking pattern in which a short light extinction section is inserted in the lighting section.
　充電率が高くなると図４の（ｃ）に示すように、点灯時間を短くして点滅回数を増やし、満充電の状態になると図４の（ｄ）に示すように、消灯する発光パターンとしている。即ち、電池の充電の度合いが増加するにつれて、発光ダイオードの単位時間当たりの発光時間が短くなる発光パターンにより、充電の度合いを表示する。 When the charging rate increases, as shown in FIG. 4C, the lighting time is shortened to increase the number of flashes, and when the state of full charge is reached, the light emission pattern is turned off as shown in FIG. 4D. . That is, the degree of charge is displayed by a light emission pattern in which the light emission time per unit time of the light emitting diode is shortened as the degree of charge of the battery increases.
特開２００８－１１５８６号公報JP 2008-11586 A
　充電度合いを示す充電状態の表示の手法として、上述の液晶等の表示装置を用いて表示する手法は、液晶等の表示装置が高価であるため、低コストで実現することが困難である。また、電池の充電の度合いが増加するにつれて、発光ダイオードの単位時間当たりの発光時間を短くし、満充電状態になると消灯する発光パターンにより、充電の度合いを表示する手法では、発光ダイオードが消灯しているとき、満充電状態か発光ダイオード等の故障かを判別することができない。 As a method for displaying the state of charge indicating the degree of charge, the above-described method of displaying using a display device such as a liquid crystal is difficult to realize at low cost because the display device such as a liquid crystal is expensive. In addition, as the battery charge level increases, the light emission time per unit time of the light emitting diode is shortened, and the method of displaying the charge level by the light emission pattern that turns off when the battery is fully charged turns off the light emitting diode. It is not possible to determine whether the battery is fully charged or the light emitting diode is malfunctioning.
　上記課題に鑑み、本発明は、ユーザが視認により電池の充電度合いを明瞭に把握することができ、かつ、低コストでシンプルな構成で実現することができる充電器電池容量表示装置を提供する。 In view of the above problems, the present invention provides a charger battery capacity display device that allows a user to clearly grasp the degree of charge of a battery by visual recognition and that can be realized with a simple configuration at low cost.
　本発明に係る充電器電池容量表示装置は、電池の充電の度合いを表示する少なくとも１つの発光ダイオードと、前記電池の充電の度合いが増加するにつれて、前記発光ダイオードの単位時間当たりの発光時間が長くなる点滅パターンとなるよう、前記発光ダイオードの発光を制御する制御ユニットと、を備えたものである。 The charger battery capacity display device according to the present invention includes at least one light-emitting diode that displays the degree of charge of the battery, and the light emission time per unit time of the light-emitting diode increases as the degree of charge of the battery increases. And a control unit that controls the light emission of the light emitting diode so as to obtain a blinking pattern.
　また、前記制御ユニットは、前記発光ダイオードが第１の所定時間の間隔で点滅した後、前記第１の所定時間より長い第２の所定時間消灯する点滅パターンが繰り返されるよう、前記光ダイオードの発光を制御し、かつ、前記第１の所定時間の間隔の点滅の回数が、前記電池の充電の度合いが増加するにつれて増加する発光パターンとなるよう、前記発光ダイオードの発光を制御するものである。 Further, the control unit emits light from the photodiode so that a blinking pattern in which the light emitting diode blinks at a first predetermined time interval and then turns off for a second predetermined time longer than the first predetermined time is repeated. And the light emission of the light emitting diode is controlled such that the number of blinks at the first predetermined time interval becomes a light emission pattern that increases as the degree of charging of the battery increases.
　また、前記制御ユニットは、前記発光ダイオードが一定時間点灯した後消灯する点滅パターンが繰り返されるよう、前記光ダイオードの発光を制御し、かつ、前記消灯する時間が前記電池の充電の度合いが増加するにつれて減少する発光パターンとなるよう、前記発光ダイオードの発光を制御するものである。 Further, the control unit controls the light emission of the photodiode so that the light-emitting diode is turned off after being turned on for a certain period of time, and the degree of charging of the battery increases during the time of turning off the light-emitting diode. The light emission of the light emitting diode is controlled so that the light emission pattern decreases with time.
　また、前記制御ユニットは、前記電池が満充電の状態となったとき、前記発光ダイオードが連続的に点灯する発光パターンとなるよう、前記発光ダイオードの発光を制御するものである。 Further, the control unit controls the light emission of the light emitting diode so that the light emitting diode has a light emission pattern that is continuously lit when the battery is fully charged.
　また、前記制御ユニットは、前記電池が搭載された電動車両側に備えられた電池パックの電子制御ユニットで演算された前記電池の充電率を、前記電動車両側から通信ラインを介して取得し、該取得した充電率を基に前記電池の充電の度合いに応じた発光パターンとなるよう、前記発光ダイオードの発光を制御するものである。 Further, the control unit obtains the charging rate of the battery calculated by the electronic control unit of the battery pack provided on the electric vehicle side on which the battery is mounted from the electric vehicle side via a communication line, Based on the acquired charging rate, the light emission of the light emitting diode is controlled so that a light emission pattern corresponding to the degree of charge of the battery is obtained.
　本発明によれば、１つの発光ダイオードの点滅を用いて、電池の充電度合いを表示することができ、液晶を使用しないため、低コストでシンプルな構成の電器電池容量表示装置を実現することができる。 According to the present invention, the degree of charge of a battery can be displayed by using blinking of one light emitting diode, and since no liquid crystal is used, an electric battery capacity display device having a simple configuration can be realized at low cost. it can.
　また、充電度合いが増すにつれて、点滅する発光ダイオードの単位時間当たりの発光時間が増加する発光パターンが表示されるため、ユーザは該発光パターンの目視により充電度合いを明瞭に把握することができ、視認性が改善される。 In addition, as the degree of charging increases, a light emitting pattern in which the light emitting time per unit time of the flashing light emitting diode increases is displayed, so that the user can clearly grasp the degree of charging by visually checking the light emitting pattern. Improved.
　また、充電度合いが増すにつれて、単位時間当たりの発光時間が増加する発光パターンの延長として、発光ダイオードが連続的に点灯していれば、満充電状態にあると認識し易くなるとともに、満充電状態と発光ダイオード等の故障とが明確に区別して視認される。 In addition, as an extension of the light emission pattern in which the light emission time per unit time increases as the degree of charge increases, if the light emitting diode is continuously lit, it will be easier to recognize that the battery is fully charged, and the fully charged state And failures such as light emitting diodes are clearly distinguished and visually recognized.
本発明による充電度合いの表示の第１の実施例を示す図である。It is a figure which shows the 1st Example of the display of the charge degree by this invention. 本発明による充電度合いの表示の第２の実施例を示す図である。It is a figure which shows the 2nd Example of the display of the charge degree by this invention. 本発明が適用される据置き型充電器の外観の一例を示す図である。It is a figure which shows an example of the external appearance of the stationary charger to which this invention is applied. 従来の充電度合いの表示例を示す図である。It is a figure which shows the example of a display of the conventional charge degree.
　本発明の充電器電池容量表示装置の実施形態を、図面を参照して以下に説明する。図１は本発明の充電器電池容量表示装置による充電度合いの表示の第１の実施例を示す。図１において横軸方向は時間を表し、縦軸方向は電池の充電度合いである充電率（ＳＯＣ）の増加の段階を示している。なお、網目模様を施した○印は、発光ダイオードが点灯している状態を表し、空白の○印は、発光ダイオードが消灯している状態を表している。 Embodiments of a battery charger capacity display device of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment of display of the degree of charge by the charger battery capacity display device of the present invention. In FIG. 1, the horizontal axis represents time, and the vertical axis represents the stage of increase in the charging rate (SOC), which is the degree of charging of the battery. A circle mark with a mesh pattern represents a state where the light emitting diode is turned on, and a blank circle mark represents a state where the light emitting diode is turned off.
　図１（ａ）は電池の充電率が低く、充電率（ＳＯＣ）が０～２０％の場合の発光ダイオードによる表示例を示している。図１（ａ）の表示例は、発光ダイオードが５秒毎に１秒間点灯し、４秒間消灯する点滅パターンを繰り返す発光パターンとしている。 FIG. 1 (a) shows a display example by a light emitting diode when the charging rate of the battery is low and the charging rate (SOC) is 0 to 20%. In the display example of FIG. 1 (a), the light emitting diode has a light emitting pattern that repeats a blinking pattern of lighting for 1 second every 5 seconds and turning off for 4 seconds.
　図１（ｂ）は、充電率（ＳＯＣ）が２０～４０％の場合の発光ダイオードによる表示例を示している。図１（ｂ）の表示例は、発光ダイオードが４秒毎に１秒間点灯し、３秒間消灯する点滅パターンを繰り返す発光パターンとしている。 FIG. 1B shows a display example by a light emitting diode when the charging rate (SOC) is 20 to 40%. In the display example of FIG. 1 (b), the light emitting diode has a light emitting pattern in which a blinking pattern is turned on every 4 seconds for 1 second and then turned off for 3 seconds.
　図１（ｃ）は、充電率（ＳＯＣ）が４０～６０％の場合の発光ダイオードによる表示例を示している。図１（ｃ）の表示例は、発光ダイオードが３秒毎に１秒間点灯し、２秒間消灯する点滅パターンを繰り返す発光パターンとしている。 FIG. 1 (c) shows a display example by a light emitting diode when the charging rate (SOC) is 40 to 60%. In the display example of FIG. 1 (c), the light emitting diode has a light emitting pattern that repeats a blinking pattern in which the light emitting diode is turned on for 1 second every 3 seconds and turned off for 2 seconds.
　図１（ｄ）は、充電率（ＳＯＣ）が６０～８０％の場合の発光ダイオードによる表示例を示している。図１（ｄ）の表示例は、発光ダイオードが２秒毎に１秒間点灯し、１秒間消灯する点滅パターンを繰り返す発光パターンとしている。 FIG. 1 (d) shows a display example by a light emitting diode when the charging rate (SOC) is 60 to 80%. In the display example of FIG. 1 (d), the light emitting diode has a light emitting pattern that repeats a blinking pattern in which the light emitting diode is turned on for 1 second every 2 seconds and turned off for 1 second.
　図１（ｅ）は、充電率（ＳＯＣ）が８０～１００％の場合の発光ダイオードによる表示例を示している。図１（ｅ）の表示例は、発光ダイオードが連続的に点灯する発光パターンとしている。 FIG. 1 (e) shows a display example by a light emitting diode when the charging rate (SOC) is 80 to 100%. The display example in FIG. 1E is a light emission pattern in which the light emitting diodes are continuously lit.
　なお、充電率（ＳＯＣ）が１００％未満のときは、発光ダイオードが点滅する発光パターンとし、満充電の状態（充電率（ＳＯＣ）が１００％）のときに、発光ダイオードが連続的に点灯する発光パターンとすることにより、満充電の状態と充電中の状態とが容易に区別し易くなるように表示する構成としても良い。 When the charging rate (SOC) is less than 100%, the light emitting diode blinks. When the charging rate is full (the charging rate (SOC) is 100%), the light emitting diode lights continuously. It is good also as a structure which displays so that it may become easy to distinguish the state of a full charge and the state in charge easily by setting it as a light emission pattern.
　このように充電器電池容量表示装置内の制御ユニット（図示省略）は、充電率（ＳＯＣ）等によって示される充電の度合いが増加するにつれて、点滅する発光ダイオードの単位時間当たりの発光時間（点灯時間×発光回数）が長くなる発光パターンとなるよう、発光ダイオードの発光を制御する。 As described above, the control unit (not shown) in the charger battery capacity display device has a light emitting time per unit time (lighting time) of the flashing light emitting diode as the degree of charging indicated by the charging rate (SOC) or the like increases. The light emission of the light-emitting diode is controlled so that the light emission pattern becomes longer (× number of light emission times).
　図２は本発明の充電器電池容量表示装置による充電状態の表示の第２の実施例を示す。図２において横軸方向は時間を表し、縦軸方向は電池の充電度合いである充電率（ＳＯＣ）の増加の段階を示している。なお、網目模様を施した○印は、発光ダイオードが点灯している状態を表し、空白の○印は、発光ダイオードが消灯している状態を表している。 FIG. 2 shows a second embodiment of the display of the state of charge by the charger battery capacity display device of the present invention. In FIG. 2, the horizontal axis represents time, and the vertical axis represents the stage of increase in the charging rate (SOC), which is the degree of charging of the battery. A circle mark with a mesh pattern represents a state where the light emitting diode is turned on, and a blank circle mark represents a state where the light emitting diode is turned off.
　図２（ａ）は電池の充電率が低く、充電率（ＳＯＣ）が０～２５％の場合の発光ダイオードによる表示例を示している。図２（ａ）の表示例は、発光ダイオードが０．２秒間、１回点灯した後、２秒間消灯する点滅パターンを繰り返す発光パターンとしている。 FIG. 2 (a) shows a display example by a light emitting diode when the charging rate of the battery is low and the charging rate (SOC) is 0 to 25%. In the display example of FIG. 2A, the light emitting diode is a light emitting pattern that repeats a blinking pattern in which the light emitting diode is turned on once for 0.2 seconds and then turned off for 2 seconds.
　図２（ｂ）は、充電率（ＳＯＣ）が２６～５０％の場合の発光ダイオードによる表示例を示している。図２（ｂ）の表示例は、発光ダイオードが０．２秒間点灯した後、０．２秒間空けて再び０．２秒間点灯（即ち０．２秒間隔で２回０．２秒間点灯）した後、２秒間消灯する点滅パターンを繰り返す発光パターンとしている。 FIG. 2B shows a display example by a light emitting diode when the charging rate (SOC) is 26 to 50%. In the display example of FIG. 2B, after the light-emitting diode is lit for 0.2 seconds, it is lit for 0.2 seconds after 0.2 seconds (that is, lit twice for 0.2 seconds at intervals of 0.2 seconds). After that, the light emission pattern repeats a blinking pattern that turns off for 2 seconds.
　図２（ｃ）は、充電率（ＳＯＣ）が５１～７５％の場合の発光ダイオードによる表示例を示している。図２（ｃ）の表示例は、発光ダイオードが０．２秒間点灯した後、０．２秒間空けて再び０．２秒間点灯する点滅パターンにより、発光ダイオードを３回点灯させた後、２秒間消灯する点滅パターンを繰り返す発光パターンとしている。 FIG. 2 (c) shows a display example by a light emitting diode when the charging rate (SOC) is 51 to 75%. In the display example of FIG. 2 (c), after the light emitting diode is turned on for 0.2 seconds, then the light emitting diode is turned on three times by a blinking pattern in which the light emitting diode is turned off for 0.2 seconds and then turned on again for 0.2 seconds. The light emission pattern repeats the blinking pattern that turns off.
　図２（ｄ）は、充電率（ＳＯＣ）が７６～９９％の場合の、発光ダイオードによる表示例を示している。図２（ｄ）の表示例は、発光ダイオードが０．２秒間点灯した後、０．２秒間空けて再び０．２秒間点灯する点滅パターンにより、発光ダイオードが４回点灯した後、２秒間消灯する点滅パターンを繰り返す発光パターンとしている。 FIG. 2 (d) shows a display example using a light emitting diode when the charging rate (SOC) is 76 to 99%. The display example of FIG. 2D shows a blinking pattern in which the light emitting diode is lit for 0.2 seconds and then lit for 0.2 seconds and then is lit again for 0.2 seconds. The flashing pattern to be repeated is a light emission pattern.
　図２（ｅ）は、充電率（ＳＯＣ）が１００％の場合の発光ダイオードによる表示例を示している。図２（ｅ）の表示例は、発光ダイオードが連続的に点灯する発光パターンとしている。 FIG. 2 (e) shows a display example by a light emitting diode when the charging rate (SOC) is 100%. The display example in FIG. 2E is a light emission pattern in which the light emitting diodes are continuously lit.
　上述のように本発明の第１及び第２の実施例では、充電器電池容量表示装置内の制御ユニット（図示省略）により、充電度合いが増すにつれて、点滅する発光ダイオードの単位時間当たりの発光時間（点灯時間×発光回数）が増加する発光パターンとなるように、発光ダイオードの発光を制御する。ユーザはこのような発光パターンの目視により充電度合いを明瞭に把握することができ、視認性が大きく改善される。 As described above, in the first and second embodiments of the present invention, the light emitting time per unit time of the light-emitting diode that blinks as the degree of charging increases by the control unit (not shown) in the charger battery capacity display device. The light emission of the light emitting diode is controlled so that the light emission pattern increases (lighting time × number of times of light emission). The user can clearly grasp the degree of charge by visual observation of such a light emission pattern, and the visibility is greatly improved.
　また、充電度合いが増すにつれて、点滅する発光ダイオードの単位時間当たりの発光時間が増加する発光パターンの延長として、発光ダイオードが連続的に点灯していれば、満充電状態にあると認識し易くなり、１つの発光ダイオードの発光パターンで、充電中の状態と充電完了の状態とが容易に区別して視認される。 In addition, as the degree of charging increases, it is easy to recognize that the LED is fully charged if the LED is continuously lit as an extension of the light emitting pattern in which the light emitting time of the flashing LED increases per unit time. With the light emission pattern of one light emitting diode, the charging state and the charging completion state are easily distinguished and visually recognized.
　また、第２の実施例のように、点灯時間（０．２秒間）を１回以上設けた後に長い消灯時間（２秒間）を設けることで、即ち、第１の所定時間の間隔で点滅した後、第１の所定時間より長い第２の所定時間消灯する点滅パターンにすることで、充電の度合いが増加するにつれて増加する点滅回数を数えやすくなり、充電度合いを明瞭に把握することができ、視認性が大きく改善される。 Further, as in the second embodiment, the lighting time (0.2 seconds) is provided once or more, and then a long light extinction time (2 seconds) is provided, that is, blinking at the first predetermined time interval. After that, by making the blink pattern to turn off for a second predetermined time longer than the first predetermined time, it becomes easier to count the number of blinks that increase as the degree of charging increases, and the degree of charging can be clearly grasped, Visibility is greatly improved.
　図３は、本発明の充電器電池容量表示装置が適用される据置き型充電器１０の外観の一例を示している。図３において、１は待機中を表す表示ランプ、２は充電中を表す表示ランプ、３は充電完了を表す表示ランプ、４は異常を表す表示ランプである。これらの表示ランプは、発光ダイオード等の低コストで低消費電流の発光素子を用いることができる。 FIG. 3 shows an example of the appearance of the stationary charger 10 to which the charger battery capacity display device of the present invention is applied. In FIG. 3, 1 is a display lamp indicating standby, 2 is a display lamp indicating charging, 3 is a display lamp indicating completion of charging, and 4 is a display lamp indicating abnormality. For these display lamps, light-emitting elements with low cost and low current consumption, such as light-emitting diodes, can be used.
　充電中を表す状態ランプ２は、図１又は図２に示す発光パターンにより、充電の度合い（進行状況）を表示する。なお、充電中を表す状態ランプ２と充電完了を表す表示ランプ３は、図２に示すように、１つのランプで発光パターンを変えることにより、兼用させることができる。 The status lamp 2 indicating that charging is in progress displays the degree of charging (progress status) by the light emission pattern shown in FIG. 1 or FIG. The state lamp 2 indicating charging and the display lamp 3 indicating completion of charging can be used in combination by changing the light emission pattern with one lamp as shown in FIG.
　５は充電停止スイッチ、６は非常停止スイッチ、７はメイン電源スイッチである。据置き型充電器１０は、フォークリフト等の電動車両２０と充電ケーブル３０で接続され、電動車両２０の電池（不図示）に充電電流を供給する。 5 is a charge stop switch, 6 is an emergency stop switch, and 7 is a main power switch. The stationary charger 10 is connected to an electric vehicle 20 such as a forklift with a charging cable 30 and supplies a charging current to a battery (not shown) of the electric vehicle 20.
　充電ケーブル３０は、充電電流を給電するパワーライン３１とＣＡＮ（Ｃｏｎｔｒｏｌｌｅｒ Ａｒｅａ Ｎｅｔｗｏｒｋ）等による通信ライン３２とを有している。ＣＡＮは、車両等の制御で一般的に用いられているネットワーク規格であり、車両等に搭載された複数のノード間の通信を実現する車載ＬＡＮのプロトコルとして標準化されたものである。 The charging cable 30 includes a power line 31 for supplying a charging current and a communication line 32 such as a CAN (Controller Area Network). CAN is a network standard that is generally used in the control of vehicles and the like, and is standardized as a vehicle-mounted LAN protocol that realizes communication between a plurality of nodes mounted on a vehicle or the like.
　電動車両２０内の電池パックの不図示の電子制御ユニット（ＥＣＵ：Ｅｌｅｃｔｒｏｎｉｃ　Ｃｏｎｔｒｏｌ　Ｕｎｉｔ）では、電池の充電率（ＳＯＣ）を演算し、ＣＡＮ等による通信ライン３２を介して、該充電率のデータを据置き型充電器１０に送信する。 In an electronic control unit (ECU: Electronic Control Unit) (not shown) of the battery pack in the electric vehicle 20, the battery charge rate (SOC) is calculated, and the charge rate data is obtained via the communication line 32 such as CAN. It transmits to the stationary charger 10.
　据置き型充電器１０の不図示の制御ユニットでは、該充電率のデータを表示ランプ２の発光パターンデータに加工し、電動車両２０の電池の充電度合い（進行状況）を表示ランプ２により表示する。 In a control unit (not shown) of the stationary charger 10, the charging rate data is processed into the light emission pattern data of the display lamp 2, and the battery charging degree (progress status) of the electric vehicle 20 is displayed by the display lamp 2. .
　電池パックの電子制御ユニット（ＥＣＵ）から通信ライン３２を介して充電率（ＳＯＣ）を取得し、該取得した充電率（ＳＯＣ）に基づいて充電度合いを表示することにより、精度の高い充電率（ＳＯＣ）に基づいた充電度合いを表示することができる。 By acquiring the charging rate (SOC) from the electronic control unit (ECU) of the battery pack via the communication line 32 and displaying the charging degree based on the acquired charging rate (SOC), a highly accurate charging rate ( The degree of charge based on the SOC) can be displayed.
　また、据置き型充電器１０の制御ユニットでは、充電開始前の電池電圧から充電前の充電率（ＳＯＣ）を求め、充電電流の電流積算量から充電度合いを推定し、該充電度合いに応じて表示ランプ２により充電度合いを表示する構成とすることもできる。 Further, the control unit of the stationary charger 10 obtains a charging rate (SOC) before charging from the battery voltage before starting charging, estimates the charging degree from the current integrated amount of the charging current, and according to the charging degree. It can also be set as the structure which displays a charge degree by the display lamp 2. FIG.
　なお、充電開始前の電池電圧から充電率（ＳＯＣ）を求めるには、電池の開放回路電圧（ＯＣＶ：Ｏｐｅｎ　Ｃｉｒｃｕｉｔ　Ｖｏｌｔａｇｅ）と充電率（ＳＯＣ）との対応関係を予め記憶したテーブルを備えておき、該テーブルを参照して、充電開始前の電池電圧から充電率（ＳＯＣ）を求める構成とすることができる。 In order to obtain the charging rate (SOC) from the battery voltage before the start of charging, a table storing in advance the correspondence relationship between the open circuit voltage (OCV) of the battery and the charging rate (SOC) is prepared. Referring to the table, the charging rate (SOC) can be obtained from the battery voltage before the start of charging.
　また、充電器電池容量表示装置は、充電器側に設けた構成例について説明したが、該充電器電池容量表示装置は、電動車両等の電池を保持する装置・器具内に設けても良い。以上、本発明の充電器電池容量表示装置について説明したが、本発明は、以上に述べた実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲内で種々の構成又は実施形態を取ることができる。 In addition, the charger battery capacity display device has been described with respect to the configuration example provided on the charger side, but the charger battery capacity display device may be provided in a device / apparatus for holding a battery such as an electric vehicle. The charger battery capacity display device of the present invention has been described above. However, the present invention is not limited to the above-described embodiment, and various configurations or embodiments can be made without departing from the gist of the present invention. Can take.
　１　　　待機中を表す表示ランプ
　２　　　充電中を表す表示ランプ
　３　　　充電完了を表す表示ランプ
　４　　　異常を表す表示ランプ
　５　　　充電停止スイッチ
　６　　　非常停止スイッチ
　７　　　メイン電源スイッチ
　１０　　　据置き型充電器
　２０　　　電動車両
　３０　　　充電ケーブル
　３１　　　パワーライン
　３２　　　ＣＡＮ通信ライン DESCRIPTION OF SYMBOLS 1 Indicator lamp showing standby 2 Indicator lamp showing charging 3 Indicator lamp showing charging completion 4 Indicator lamp showing abnormality 5 Charge stop switch 6 Emergency stop switch 7 Main power switch 10 Stationary charger 20 Electric vehicle 30 Charging Cable 31 Power line 32 CAN communication line

Claims (5)

  1. 　電池の充電の度合いを表示する少なくとも１つの発光ダイオードと、
    　前記電池の充電の度合いが増加するにつれて、前記発光ダイオードの単位時間当たりの発光時間が長くなる点滅パターンとなるよう、前記発光ダイオードの発光を制御する制御ユニットと、
    　を備えたことを特徴とする充電器電池容量表示装置。     At least one light emitting diode for indicating the degree of charge of the battery;
    As the degree of charging of the battery increases, a control unit that controls the light emission of the light emitting diode so as to have a blinking pattern in which the light emission time per unit time of the light emitting diode becomes longer,
    A battery capacity display device for a battery charger, comprising:
  2. 　前記制御ユニットは、前記発光ダイオードが第１の所定時間の間隔で点滅した後、前記第１の所定時間より長い第２の所定時間消灯する点滅パターンが繰り返されるよう、前記発光ダイオードの発光を制御し、かつ、前記第１の所定時間の間隔の点滅の回数が、前記電池の充電の度合いが増加するにつれて増加する発光パターンとなるよう、前記発光ダイオードの発光を制御することを特徴とする請求項１記載の充電器電池容量表示装置。 The control unit controls light emission of the light emitting diode so that a blinking pattern in which the light emitting diode blinks at a first predetermined time interval and then turns off for a second predetermined time longer than the first predetermined time is repeated. In addition, the light emission of the light emitting diode is controlled so that the number of blinks in the first predetermined time interval becomes a light emission pattern that increases as the degree of charging of the battery increases. Item 2. Charger battery capacity display device according to Item 1.
  3. 　前記制御ユニットは、前記発光ダイオードが一定時間点灯した後消灯する点滅パターンが繰り返されるよう、前記光ダイオードの発光を制御し、かつ、前記消灯する時間が前記電池の充電の度合いが増加するにつれて減少する発光パターンとなるよう、前記発光ダイオードの発光を制御することを特徴とする請求項１記載の充電器電池容量表示装置。 The control unit controls the light emission of the photodiode so that the light-emitting diode is turned on and off after a certain period of time, and the light-off time decreases as the degree of charging of the battery increases. The charger battery capacity display device according to claim 1, wherein the light emission of the light emitting diode is controlled so as to obtain a light emission pattern.
  4. 　前記制御ユニットは、前記電池が満充電の状態となったとき、前記発光ダイオードが連続的に点灯する発光パターンとなるよう、前記発光ダイオードの発光を制御することを特徴とする請求項１乃至３の何れかに記載の充電器電池容量表示装置。 The said control unit controls the light emission of the said light emitting diode so that it may become the light emission pattern which the said light emitting diode lights continuously, when the said battery will be in the state of a full charge. The charger battery capacity display device according to any one of the above.
  5. 　前記制御ユニットは、前記電池が搭載された電動車両側に備えられた電池パックの電子制御ユニットで演算された電池の充電率を、前記電動車両側から通信ラインを介して取得し、該取得した充電率を基に前記電池の充電の度合いに応じた発光パターンとなるよう、前記発光ダイオードの発光を制御することを特徴とする請求項１乃至４の何れかに記載の充電器電池容量表示装置。 The control unit acquires the battery charging rate calculated by the electronic control unit of the battery pack provided on the electric vehicle side on which the battery is mounted from the electric vehicle side via the communication line, and acquires the battery charge rate. 5. The charger battery capacity display device according to claim 1, wherein the light emission of the light emitting diode is controlled so as to obtain a light emission pattern corresponding to a degree of charge of the battery based on a charge rate. .
PCT/JP2013/073470 2012-10-26 2013-09-02 Charger cell capacitance display device WO2014065006A1 (en)

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JP7384849B2 (en) 2021-02-12 2023-11-21 東芝三菱電機産業システム株式会社 power converter

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JPS5491281A (en) * 1977-12-27 1979-07-19 Seiko Epson Corp Electronic device
JPH02171669A (en) * 1988-12-23 1990-07-03 Matsushita Electric Works Ltd Battery capacity display device
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