WO2019031273A1 - Electric device - Google Patents

Electric device Download PDF

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Publication number
WO2019031273A1
WO2019031273A1 PCT/JP2018/028259 JP2018028259W WO2019031273A1 WO 2019031273 A1 WO2019031273 A1 WO 2019031273A1 JP 2018028259 W JP2018028259 W JP 2018028259W WO 2019031273 A1 WO2019031273 A1 WO 2019031273A1
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WO
WIPO (PCT)
Prior art keywords
battery pack
abnormality
battery
unit
control unit
Prior art date
Application number
PCT/JP2018/028259
Other languages
French (fr)
Japanese (ja)
Inventor
勇祐 船引
政幸 小倉
寺西　卓也
直人 若田部
Original Assignee
工機ホールディングス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 工機ホールディングス株式会社 filed Critical 工機ホールディングス株式会社
Priority to JP2019535105A priority Critical patent/JPWO2019031273A1/en
Publication of WO2019031273A1 publication Critical patent/WO2019031273A1/en

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/18—Devices for illuminating the head of the screw or the nut
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/247—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • 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 user can not determine which of the battery pack and the main body the abnormality has occurred if the notification part notifying the abnormality on the battery pack side and the notification part notifying the high temperature abnormality on the main body side are the same.
  • the main body side notification unit may be a lighting unit that irradiates a work location.
  • the battery side notification unit may be a remaining capacity display unit that displays the remaining capacity of the battery pack.
  • the main body notification unit may not notify of an abnormality in the battery pack.
  • the abnormality may include a temperature abnormality.
  • the abnormality may include a current abnormality, and at least one of the main body-side notification unit and the battery-side notification unit may perform notification in different modes depending on temperature abnormality and current abnormality.
  • Another aspect of the present invention is an electric apparatus comprising a battery pack and an apparatus body connected to the battery pack, wherein the apparatus body reports an abnormality in the inside of the apparatus body. And a battery abnormality notification unit for notifying of an abnormality in the battery pack.
  • Another aspect of the present invention is an electric apparatus comprising a battery pack and an apparatus body connected to the battery pack, wherein the battery pack reports an abnormality in the inside of the apparatus body. And a battery abnormality notification unit for notifying of an abnormality in the battery pack.
  • Another aspect of the present invention is an electric device including a battery pack and an apparatus body connected to the battery pack, wherein either the apparatus body or the battery pack has an abnormality notification unit.
  • the abnormality notification unit performs notification of different modes depending on an abnormality in the device body and an abnormality in the battery pack.
  • the device body has a main body side control unit, the battery pack has a battery side control unit, and the battery side control unit detects the abnormality in the battery pack, the main body side control unit
  • the abnormality detection signal may be transmitted to the main body control unit, and the main body control unit may stop the operation of the device main body when the abnormality detection signal is received.
  • an electrical device capable of quickly determining which of a battery pack and a main body has an abnormality.
  • FIG. 2 is an external view of a switch panel 62 of FIG. 1; The lighting state explanatory drawing of the LED light 58 of FIG. 1 in each case in which the overload protection function and the temperature protection function were operated.
  • FIG. 2 is a perspective view of the battery pack 10 of FIG. 1; The lighting state explanatory drawing of the remaining capacity display means 17 of FIG. 4 according to a battery remaining amount, the presence or absence of temperature protection function operation
  • the block diagram of the state which connected the electric tool 50 and the battery pack 10 mutually.
  • the control flow chart of battery pack 10. The flowchart which shows the 1st example of motor drive control in electric tool 50 for controlling that temperature of secondary battery cell 11 shown in Drawing 12 becomes high temperature protection threshold (80 ° C).
  • FIG. 14 is a time chart showing a first example of the operation of the electric power tool 50 and the battery pack 10 based on the flowchart shown in FIG. 13.
  • 10 is a flowchart showing a second example of motor drive control in the electric power tool 50.
  • 16 is a time chart showing a second example of the operation of the power tool 50 and the battery pack 10 based on the flowchart shown in FIG.
  • FIG. 1 is a side view of a state where a battery pack 10 is connected, of an electric power tool 50 which is an example of an electric device according to an embodiment of the present invention.
  • the electric power tool 50 is a cordless type portable cutting machine (portable circular saw), and operates with the power of the battery pack 10 detachably mounted.
  • the battery pack 10 is slidably attached to the rear end portion of the housing 60 of the power tool 50 from the rear.
  • the housing 60 is connected to a metal base 71 such as aluminum and positioned above the base 71.
  • the lower surface of the base 71 is a sliding surface with the work material.
  • FIG. 3 is an explanatory view of the lighting state of the LED light 58 of FIG. 1 in each case where the overload protection function and the temperature protection function are activated.
  • the LED light 58 is a light that illuminates the work material and is an example of the main body side informing unit, and under the control of the control unit 55 shown in FIG. Lights are turned on and off repeatedly every second), and when the temperature protection function is activated, it blinks slowly (for example, it is turned on and off every 0.5 seconds) and the user is notified. Notification of the operation of the protection function by blinking of the LED light 58 may be performed when the light lighting switch 59 is pressed, or an overload or high temperature state occurs regardless of whether the light lighting switch 59 is pressed or not. It may be done automatically at the same time. The LED light 58 does not notify of overdischarge or high temperature abnormality of the battery pack 10.
  • FIG. 4 is a perspective view of the battery pack 10 of FIG.
  • the battery pack 10 incorporates the secondary battery cell 11 and the control unit 15 shown in FIG. 6 and other various circuit components, and has a switch panel 20 at a portion facing above the rear outer surface.
  • the switch panel 20 is provided with a remaining capacity display unit 17 and a remaining capacity display switch 19.
  • the remaining capacity display unit 17 is four LEDs here, and as described later, functions as a battery side notification unit that displays the remaining capacity of the battery pack 10 and reports an abnormality inside the battery pack 10.
  • the remaining capacity display switch 19 is an example of a notification operation unit, and is a switch (here, a button switch) for the user to instruct the presence / absence of display by the remaining capacity display means 17.
  • FIG. 5 is an explanatory view of the lighting state of the remaining capacity display means 17 of FIG.
  • remaining capacity display means 17 turns on all four LEDs when battery pack 10 is fully charged, and the number of lighted LEDs decreases in stages as remaining capacity of battery pack 10 decreases.
  • one LED blinks four LEDs blink when the temperature protection function of the battery pack 10 is activated, and two LEDs blink when the battery pack 10 breaks down.
  • the number of blinks of the LEDs and the method of blink are not limited to this.
  • FIG. 6 is a block diagram of the state where the power tool 50 and the battery pack 10 are connected to each other.
  • each of the battery pack 10 and the power tool 50 includes a plus terminal, an LS terminal, a V terminal, a T terminal, an LD terminal, and a minus terminal.
  • the terminals of the same name of the battery pack 10 and the power tool 50 are electrically connected to each other.
  • Battery pack 10 includes a plurality of (here, five) secondary battery cells 11 connected in series between its plus terminal and minus terminal.
  • the cell voltage monitoring IC 12 monitors the voltage of each of the secondary battery cells 11, and determines that the battery is overdischarged when the voltage of at least one of the secondary battery cells 11 becomes lower than a predetermined value, and the control unit (battery side control unit) Send an overdischarge detection signal to 15.
  • a resistor R1 for current detection is connected in series.
  • the current detection circuit 14 detects the output current of the secondary battery cell 11 by the voltage across the resistor R1 and transmits the detection result to the control unit 15.
  • the power supply circuit 13 generates an operating voltage VDD1 of the cell voltage monitoring IC 12 and the control unit 15 from the output voltage of the secondary battery cell 11.
  • the battery voltage detection circuit 16 detects the output voltage of the secondary battery cell 11 and transmits the detection result to the control unit 15.
  • the remaining capacity display unit 17 is, for example, an LED, and displays (notifies) the remaining capacity of the battery pack 10 to the user under the control of the control unit 15.
  • the cell temperature detection unit 18 detects the temperature of the secondary battery cell 11 based on the voltage of the thermistor TH disposed in the vicinity of the secondary battery cell 11, and transmits the detection result to the control unit 15.
  • the remaining capacity display switch 19 is a switch for instructing the user to display the remaining capacity on the remaining capacity display means 17.
  • the battery pack 10 includes a serial communication receiving circuit 31 forming a path for causing the control unit 15 to receive a serial communication signal (digital signal) transmitted from the power tool 50, and an analog voltage (secondary battery) at one end of the thermistor TH.
  • Temperature information transmitting circuit 32 forming a path for transmitting the temperature information of the cell 11 to the electric power tool 50.
  • the LS terminal of the battery pack 10 is alternatively connected to one of the serial communication reception circuit 31 and the temperature information transmission circuit 32 through the first switching circuit 21.
  • the first switching circuit 21 has one end connected to the LS terminal, the control terminal connected to the V terminal, and the other end connected to the serial communication receiving circuit 31 and the temperature information transmitting circuit 32 according to the signal input from the V terminal.
  • the other end of the first switching circuit 21 is connected to the serial communication receiving circuit 31, and when the signal from the V terminal is at the high level, the other terminal of the first switching circuit 21 is The other end is connected to the temperature information transmission circuit 32.
  • One end of the thermistor TH is connected to the other end of the first switching circuit 21.
  • a switching element Q1 such as an FET is provided between the other end of the thermistor TH and the ground.
  • the third switching circuit 23 has one end connected to the V terminal, the control terminal connected to the control unit 15, and the other end connected to the control terminal (gate) of the switching element Q1 according to a signal input from the control unit 15. It is alternatively connected to one end of the thermistor TH (the other end of the first switching circuit 21).
  • the battery pack 10 is directed to the power tool 50 from the control unit 15 and the identification information transmission circuit 35 forming a path for transmitting the analog voltage (identification information of the battery pack 10) at one end of the identification resistance Ra to the power tool 50.
  • a serial communication transmission circuit 36 forming a path for transmitting a serial communication signal (digital signal).
  • the T terminal of the battery pack 10 is alternatively connected to one of the identification information transmission circuit 35 and the serial communication transmission circuit 36 via the second switching circuit 22.
  • the second switching circuit 22 has one end connected to the T terminal, the control terminal connected to the control unit 15, and the other end transmitting the identification information transmission circuit 35 and serial communication according to the signal input from the control unit 15. It is alternatively connected to one of the circuits 36.
  • a switching resistor Q2 such as a switching resistor Rb and a FET is connected in parallel between the other end of the switching resistor Ra and the ground.
  • the control terminal (gate) of the switching element Q2 is connected to the V terminal.
  • a switching element Q3 such as an FET is provided between the LD terminal and the ground.
  • the control terminal (gate) of the switching element Q3 is connected to the control unit 15. When the signal input from the control unit 15 to the control terminal is at the high level, the switching element Q3 is turned on, and when the signal is at the low level, the switching element Q3 is turned off.
  • a motor 51 as a driving source is a brushless motor.
  • the motor 51 may be a brushed motor.
  • the inverter circuit 65 is composed of switching elements such as FETs and IGBTs connected in a three-phase bridge manner as known in the art, and supplies a drive current to the motor 51. Switching control (for example, PWM control) of each switching element is performed by a control unit 55 such as a microcontroller.
  • the drive current of the motor 51 is converted into a voltage by the resistor R5, detected by the current detection circuit 54 that has received the voltage, and transmitted to the control unit 55.
  • the control unit 55 has terminals connected to the LS terminal, the V terminal, the T terminal, and the LD terminal.
  • One end of the resistor R6 is connected to the power supply line.
  • a resistor R7 and a switching element Q6 such as an FET are connected in series between the other end of the resistor R6 and the ground.
  • the interconnection point of the resistor R6 and the resistor R7 is connected to the LS terminal.
  • the control terminal (gate) of the switching element Q6 is connected to the control unit 55.
  • the resistor R8 is provided between the power supply line and the T terminal.
  • the resistor R9 is provided between the power supply line and the LD terminal.
  • the control unit 55 of the power tool 50 can switch the function of the LS terminal by the signal transmitted to the battery pack 10 via the V terminal. Specifically, when the control unit 55 transmits a high level signal from the V terminal, the connection destination of the other end of the first switching circuit 21 becomes the temperature information transmitting circuit 32, and via the first switching circuit 21 and the LS terminal Thus, the voltage at one end of the thermistor TH can be received.
  • the control unit 15 of the battery pack 10 normally uses the connection destination of the other end of the third switching circuit 23 as the control terminal of the switching element Q1.
  • the switching element Q1 when the signal of the V terminal is at high level, the switching element Q1 is It turns on, and an analog voltage corresponding to the temperature of the secondary battery cell 11 is output to one end (the temperature information transmission circuit 32) of the thermistor TH.
  • the switching element Q2 When the signal at the V terminal is at high level, the switching element Q2 is turned on, and the voltage at the T terminal becomes a first identification voltage obtained by dividing the power supply voltage VDD2 of the power tool 50 by the resistor R8 and the resistor Ra.
  • the contents of the serial communication signal transmitted from the battery pack 10 to the power tool 50 include, for example, the type and model number of the battery pack 10, the type of the secondary battery cell 11, error log, use history information, and information required for the power tool 50 Etc. Note that all the information may be transmitted from the battery pack 10 to the power tool 50, or only the information requested from the power tool 50 may be transmitted.
  • the identification information of the battery pack 10 can be notified in more or more detail than the voltages of the identification resistances Ra and Rb.
  • serial (digital) communication one signal is output to the other by inputting / outputting a high signal or low signal output from one control unit (microcomputer) to the other control unit (microcomputer).
  • the control unit 15 of the battery pack 10 sets the connection destination of the other end of the third switching circuit 23 to one end of the thermistor TH 1) the other end of the switching circuit 21). Since the charger sets the signal of the V terminal to high level during charging, the connection destination of the other end of the first switching circuit 21 is the temperature information transmission circuit 32. Therefore, the signal (high level) of the V terminal is transmitted to the charger via the third switching circuit 23, the first switching circuit 21 and the LS terminal, and notification of the charge stop is notified.
  • FIG. 8 is a second control flowchart of the power tool 50.
  • the control unit 55 After confirming that the trigger switch 52 is turned off after the LED light 58 is turned off (S13) (YES in S16), the control unit 55 returns to the standby state (S1). In this case, after the LED light 58 is turned off (S13) because the trigger switch 52 is turned on (YES in S12), the motor 51 is not restarted unless the trigger switch 52 is once turned off. Can be prevented from rotating unexpectedly.
  • FIG. 10 is a fourth control flowchart of the power tool 50.
  • the drive current of motor 51 (hereinafter also referred to as "motor current”) becomes 110A or more, which is an example of the overcurrent threshold (YES in S5a)
  • controller 55 controls motor 51 while driving motor 51 (S5).
  • the operation is stopped (S7), and the LED light 58 is blinked (S8a).
  • the blinking here is a repetition of lighting for 0.1 seconds and turning off for 0.1 seconds (fast blinking in FIG. 3).
  • control unit 15 clears the switch off timer (S115).
  • control section 15 continues the OFF state of remaining capacity display switch 19 for 3 seconds, which is an example of a predetermined time (YES in S117). It returns to S101. If the off state of the remaining capacity display switch 19 does not continue for 3 seconds (NO in S117), the control unit 15 increments the switch off timer (S119). If the output voltage (hereinafter also referred to as "battery voltage") of the secondary battery cell 11 is less than V1 (YES in S121), the control unit 15 blinks one LED of the remaining capacity display means 17 (S123).
  • the controller 15 turns on the two LEDs of the remaining capacity display means 17 (S141). If the battery voltage is V2 or less (NO in S139), the control unit 15 causes one LED of the remaining capacity display unit 17 to light (S143).
  • FIG. 13 is a flowchart showing a first example of motor drive control in the power tool 50 for suppressing the temperature of the secondary battery cell 11 from becoming the high temperature protection threshold (80 ° C.) shown in FIG.
  • the control unit 15 of the battery pack 10 detects the temperature of the secondary battery cell 11 (S51), and if it is 60 ° C. or more, which is an example of a predetermined temperature lower than the high temperature protection threshold (YES in S52), for serial communication Temperature information of the battery pack 10 (secondary battery cell 11) is transmitted to the control unit 55 via the transmission circuit 36.
  • control unit 55 when the control unit 55 does not receive temperature information (signal of a predetermined temperature or more) of the battery pack 10 through the serial communication transmission circuit 36, the control unit 55 periodically reads the temperature information through the serial communication transmission circuit 36. If the temperature of the next battery cell 11 is not 60 ° C. or higher (NO in S52), constant rotation number control is performed (S55), and the duty is adjusted so that the rotation number of the motor 51 becomes constant (S56). In the constant rotation speed control, since the motor 51 can be driven normally, the control mode LED is turned off (S57).
  • FIG. 14 is a time chart showing a first example of the operation of the power tool 50 and the battery pack 10 based on the flowchart shown in FIG.
  • the control unit 55 controls the duty to control the motor 51 at a constant rotation number, and the temperature of the secondary battery cell 11 rises.
  • time t5 when the temperature of the secondary battery cell 11 reaches 60 ° C., constant duty control with a duty 50% lower than the current duty is performed, and the temperature of the secondary battery cell 11 decreases due to a decrease in motor current.
  • the rise is gradual compared to before time t5.
  • the motor 51 is stopped to protect the secondary battery cell 11 from high temperature.
  • FIG. 15 is a flow chart showing a second example of motor drive control in the electric power tool 50.
  • the control unit 55 detects the temperature of the switching element constituting the inverter circuit 65 (S51a), and if it is 80.degree. C. or more which is an example of a predetermined temperature lower than the high temperature threshold (100.degree. C.) shown in FIG. YES), the duty is fixed at 100% and the motor 51 is driven (S53a). At this time, in order to indicate that the control is performed with the duty fixed at 100% because the temperature of the switching element is high, display by the control mode LED is performed (S54a).
  • the control mode LED uses the LED light 58 to perform display, for example, in a blinking cycle other than the display shown in FIG.
  • the abnormality of the power tool 50 is displayed by the LED light 58 of the power tool 50, and the abnormality of the battery pack 10 is displayed by the remaining capacity display means 17 of the battery pack 10. It is possible to quickly determine which of the ten has an abnormality. If it is recognized that the battery pack 10 is abnormal, the power tool 50 can be used immediately by replacing it with another battery pack 10, and work efficiency can be improved.
  • the LED light 58 for illuminating the work material is also used to notify the abnormality of the electric power tool 50, the number of parts can be reduced as compared with the case where an LED for notifying the abnormality is separately provided.
  • the remaining capacity display means 17 for displaying the remaining capacity of the battery pack 10 is also used to notify of an abnormality in the battery pack 10, the number of parts can be reduced as compared with the case where an LED for error notification is separately provided.
  • both of the power tool 50 and the battery pack 10 may be displayed on the remaining capacity display means 17 of the battery pack 10.
  • the LED light 58 of the power tool 50 blinks, all the LEDs of the remaining capacity display means 17 of the battery pack 10 blinks, or the switch panel 62 of the power tool 50 displays the remaining capacity display of the battery pack 10
  • the switch 19 it may be possible to determine which of the power tool 50 and the battery pack 10 has become abnormal by changing the blink pattern and the number of blinks.
  • the battery pack 10 may be provided with a notification unit (such as an LED) for notifying of an abnormality of the power tool 50 separately from the remaining capacity display unit 17.
  • the LED light 58 of the power tool 50 blinks, all the LEDs of the remaining capacity display means 17 of the battery pack 10 blinks, or the switch panel 62 of the power tool 50 is displayed.
  • the switch panel 62 of the power tool 50 is displayed.
  • Remaining capacity display means 18: cell temperature detection means, 19: remaining capacity display switch, 20: switch panel, 21: first switching circuit, 22: second switching circuit, 23: third switching circuit, 31: for serial communication Reception circuit 32 Temperature information transmission circuit 35 Identification information transmission circuit 36 Transmission circuit for serial communication 50 Power tool 51 Motor 52 Trigger switch 53 Switch state detection circuit 54 Current detection Circuits 55: control unit (body side control unit) 56: power supply circuit 57: battery voltage detection circuit 58: LED light 59: light lighting switch 60: housing 61: grip portion 2 ... switch panel, 63 ... lighting state display LED, 65 ... inverter circuit, 66 ... temperature detecting element, 67 ... inverter temperature detecting circuit, 70 ... saw blade, 71 ... base

Abstract

Provided is an electric device capable of quickly distinguishing which, out of a battery pack and a main body, has had an error occur therein. An electric tool (50) has an LED light (58) that notifies errors inside the electric tool (50). The LED light (58) illuminates a workpiece. A residual capacity display means (17) in a battery pack (10) also serves as a battery-side notification unit that notifies errors inside the battery pack (10). A control unit (55) for the electric tool (50) causes the LED light (58) to flash slowly if a high-temperature error is detected in a switching element in an inverter circuit (65) and causes the LED light (58) to flash quickly if an overcurrent is detected. A control unit (15) for the battery pack (10) causes one LED in the residual capacity display means (17) to flash if over-discharge is detected and causes four LEDs in the residual capacity display means (17) to flash if a high-temperature error is detected in a secondary battery cell (11).

Description

電気機器Electrical equipment
本発明は、電池パックを接続可能な電気機器に関する。 The present invention relates to an electrical device to which a battery pack can be connected.
下記特許文献１は、電池パックの電力で動作する電動工具において、スイッチング素子の高温異常を報知する発光素子と、装着した電池パックの残容量を表示するランプと、を備えることを開示する。 Patent Document 1 below discloses, in an electric power tool operated by the power of a battery pack, a light emitting element for reporting a high temperature abnormality of a switching element, and a lamp for displaying a remaining capacity of a mounted battery pack.
特開２０１１－６５４号公報Unexamined-Japanese-Patent No. 2011-654
電池パック側の異常を報知する報知部と、本体側の高温異常を報知する報知部と、が同じであると、電池パックと本体のどちらに異常が発生したかを使用者は判別できない。 The user can not determine which of the battery pack and the main body the abnormality has occurred if the notification part notifying the abnormality on the battery pack side and the notification part notifying the high temperature abnormality on the main body side are the same.
本発明はこうした状況を認識してなされたものであり、その目的は、電池パックと本体のどちらに異常が発生したか迅速に判別可能な電気機器を提供することにある。 The present invention has been made in recognition of such a situation, and an object thereof is to provide an electric device capable of quickly determining which of a battery pack and a main body has an abnormality.
本発明のある態様は、電池パックと、前記電池パックに接続される機器本体と、を備える電気機器であって、前記機器本体は、前記機器本体内部の異常を報知する本体側報知部を有し、前記電池パックは、前記電池パック内部の異常を報知する電池側報知部を有する。 One embodiment of the present invention is an electric device including a battery pack and a device body connected to the battery pack, wherein the device body has a main body side notification unit that reports an abnormality inside the device body. The battery pack has a battery side notification unit for notifying of an abnormality in the battery pack.
前記本体側報知部は、作業箇所を照射する照明部であってもよい。 The main body side notification unit may be a lighting unit that irradiates a work location.
前記電池側報知部は、前記電池パックの残容量を表示する残容量表示部であってもよい。 The battery side notification unit may be a remaining capacity display unit that displays the remaining capacity of the battery pack.
前記本体側報知部及び前記電池側報知部の少なくとも一方は、報知操作部に対して所定の操作が行われたときに異常有無を報知してもよい。 At least one of the main body-side notification unit and the battery-side notification unit may notify of the presence or absence of abnormality when a predetermined operation is performed on the notification operation unit.
前記電池側報知部は、異常が検出されると自動的に報知してもよい。 The battery side notification unit may automatically notify when an abnormality is detected.
前記本体側報知部は、前記電池パック内部の異常は報知しなくてもよい。 The main body notification unit may not notify of an abnormality in the battery pack.
前記異常は、温度異常を含んでもよい。 The abnormality may include a temperature abnormality.
前記異常は、電流異常を含み、前記本体側報知部及び前記電池側報知部の少なくとも一方は、温度異常と電流異常とで、異なる態様の報知を行ってもよい。 The abnormality may include a current abnormality, and at least one of the main body-side notification unit and the battery-side notification unit may perform notification in different modes depending on temperature abnormality and current abnormality.
本発明のもう１つの態様は、電池パックと、前記電池パックに接続される機器本体と、を備える電気機器であって、前記機器本体は、前記機器本体内部の異常を報知する本体異常報知部と、前記電池パック内部の異常を報知する電池異常報知部と、を別々に有する。 Another aspect of the present invention is an electric apparatus comprising a battery pack and an apparatus body connected to the battery pack, wherein the apparatus body reports an abnormality in the inside of the apparatus body. And a battery abnormality notification unit for notifying of an abnormality in the battery pack.
本発明のもう１つの態様は、電池パックと、前記電池パックに接続される機器本体と、を備える電気機器であって、前記電池パックは、前記機器本体内部の異常を報知する本体異常報知部と、前記電池パック内部の異常を報知する電池異常報知部と、を別々に有する。 Another aspect of the present invention is an electric apparatus comprising a battery pack and an apparatus body connected to the battery pack, wherein the battery pack reports an abnormality in the inside of the apparatus body. And a battery abnormality notification unit for notifying of an abnormality in the battery pack.
本発明のもう１つの態様は、電池パックと、前記電池パックに接続される機器本体と、を備える電気機器であって、前記機器本体及び前記電池パックのいずれかは、異常報知部を有し、前記異常報知部は、前記機器本体内部の異常と、前記電池パック内部の異常とで、異なる態様の報知を行う。 Another aspect of the present invention is an electric device including a battery pack and an apparatus body connected to the battery pack, wherein either the apparatus body or the battery pack has an abnormality notification unit. The abnormality notification unit performs notification of different modes depending on an abnormality in the device body and an abnormality in the battery pack.
前記機器本体は、本体側制御部を有し、前記電池パックは、電池側制御部を有し、前記電池側制御部は、前記電池パック内部の異常が検出されると、前記本体側制御部に異常検出信号を送信し、前記本体側制御部は、前記異常検出信号を受信すると前記機器本体の動作を停止してもよい。 The device body has a main body side control unit, the battery pack has a battery side control unit, and the battery side control unit detects the abnormality in the battery pack, the main body side control unit The abnormality detection signal may be transmitted to the main body control unit, and the main body control unit may stop the operation of the device main body when the abnormality detection signal is received.
なお、以上の構成要素の任意の組合せ、本発明の表現を方法やシステムなどの間で変換したものもまた、本発明の態様として有効である。 It is to be noted that arbitrary combinations of the above-described components, and those obtained by converting the expression of the present invention among methods, systems, and the like are also effective as aspects of the present invention.
本発明によれば、電池パックと本体のどちらに異常が発生したか迅速に判別可能な電気機器を提供することができる。 According to the present invention, it is possible to provide an electrical device capable of quickly determining which of a battery pack and a main body has an abnormality.
本発明の実施の形態に係る電動工具５０の、電池パック１０を接続した状態の側面図。The side view in the state where battery pack 10 was connected of electric tool 50 concerning an embodiment of the invention. 図１のスイッチパネル６２の外観図。FIG. 2 is an external view of a switch panel 62 of FIG. 1; 過負荷保護機能及び温度保護機能が作動した各場合における図１のＬＥＤライト５８の点灯状態説明図。The lighting state explanatory drawing of the LED light 58 of FIG. 1 in each case in which the overload protection function and the temperature protection function were operated. 図１の電池パック１０の斜視図。FIG. 2 is a perspective view of the battery pack 10 of FIG. 1; 電池残量、温度保護機能作動有無、及び故障有無に応じた図４の残容量表示手段１７の点灯状態説明図。The lighting state explanatory drawing of the remaining capacity display means 17 of FIG. 4 according to a battery remaining amount, the presence or absence of temperature protection function operation | movement, and failure presence or absence. 電動工具５０及び電池パック１０を互いに接続した状態のブロック図。The block diagram of the state which connected the electric tool 50 and the battery pack 10 mutually. 電動工具５０の第１制御フローチャート。The 1st control flow chart of electric tool 50. 電動工具５０の第２制御フローチャート。The 2nd control flow chart of electric tool 50. 電動工具５０の第３制御フローチャート。The 3rd control flow chart of electric tool 50. 電動工具５０の第４制御フローチャート。The 4th control flow chart of electric tool 50. 電動工具５０の第５制御フローチャート。The 5th control flow chart of electric tool 50. 電池パック１０の制御フローチャート。The control flow chart of battery pack 10. 図１２で示した、二次電池セル１１の温度が高温保護閾値（８０℃）になることを抑制するための電動工具５０におけるモータ駆動制御の第１例を示すフローチャート。The flowchart which shows the 1st example of motor drive control in electric tool 50 for controlling that temperature of secondary battery cell 11 shown in Drawing 12 becomes high temperature protection threshold (80 ° C). 図１３に示したフローチャートに基づく電動工具５０及び電池パック１０の動作の第１例を示すタイムチャート。FIG. 14 is a time chart showing a first example of the operation of the electric power tool 50 and the battery pack 10 based on the flowchart shown in FIG. 13. 電動工具５０におけるモータ駆動制御の第２例を示すフローチャート。10 is a flowchart showing a second example of motor drive control in the electric power tool 50. 図１５に示したフローチャートに基づく電動工具５０及び電池パック１０の動作の第２例を示すタイムチャート。16 is a time chart showing a second example of the operation of the power tool 50 and the battery pack 10 based on the flowchart shown in FIG. 実施の形態に関し、電動工具５０の異常は電動工具５０のＬＥＤライト５８で表示し、電池パック１０の異常は電池パック１０の残容量表示手段１７で表示する場合の、通常時と異常時のＬＥＤライト５８及び残容量表示手段１７の各々の点灯状態説明図。In the embodiment, when the abnormality of the electric power tool 50 is displayed by the LED light 58 of the electric power tool 50 and the abnormality of the battery pack 10 is displayed by the remaining capacity display means 17 of the battery pack 10, LEDs at normal time and abnormality The lighting state explanatory drawing of each of the light 58 and the remaining capacity display means 17. FIG. 他の実施の形態に関し、電動工具５０の異常及び電池パック１０の異常を共に電動工具５０のＬＥＤライト５８で表示する場合の、通常時と異常時のＬＥＤライト５８及び残容量表示手段１７の各々の点灯状態説明図。Regarding other embodiments, when displaying both the abnormality of the power tool 50 and the abnormality of the battery pack 10 with the LED light 58 of the power tool 50, each of the LED light 58 at the time of abnormality and the remaining capacity display means 17 Lighting state explanatory drawing of. 他の実施の形態に係る電動工具５０Ａの、電池パック１０を接続した状態の側面図。The side view of the state which connected the battery pack 10 of 50 A of electric tools which concern on other embodiment. 他の実施の形態に係る電動工具５０Ｂの、電池パック１０を接続した状態の側面図。The side view of the state which connected the battery pack 10 of electric tool 50B which concerns on other embodiment.
以下、図面を参照しながら本発明の好適な実施の形態を詳述する。なお、各図面に示される同一または同等の構成要素、部材、処理等には同一の符号を付し、適宜重複した説明は省略する。また、実施の形態は発明を限定するものではなく例示であり、実施の形態に記述されるすべての特徴やその組み合わせは必ずしも発明の本質的なものであるとは限らない。 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same or equivalent component shown by each drawing, a member, a process, etc., and the overlapping description is abbreviate | omitted suitably. In addition, the embodiments do not limit the invention, and are merely examples, and all the features described in the embodiments and the combination thereof are not necessarily essential to the invention.
図１は、本発明の実施の形態に係る電気機器の一例である電動工具５０の、電池パック１０を接続した状態の側面図である。図１により、互いに直交する前後及び上下方向を定義する。電動工具５０は、コードレスタイプの携帯用切断機（携帯用丸鋸）であって、着脱可能に装着した電池パック１０の電力で動作する。電池パック１０は、電動工具５０のハウジング６０の後端部に後方からスライド装着される。ハウジング６０は、アルミ等の金属製のベース７１に連結され、ベース７１の上方に位置する。ベース７１の下面は、被削材との摺動面となる。ハウジング６０は、図６に示すモータ５１や制御部５５、その他の各種回路部品を収容する。また、モータ５１の回転を鋸刃７０に伝達する図示しない減速機構がハウジング６０に収容保持され、鋸刃７０は前記減速機構を介してモータ５１によって回転駆動される。ハウジング６０には、被削材を照らすＬＥＤライト５８が保持される。ハウジング６０のグリップ部６１には、使用者がモータ５１の駆動、停止を指示するためのトリガスイッチ５２が設けられる。ハウジング６０の外面の上方に臨む部分であって、グリップ部６１とハウジング６０によって形成される空間に、図２に示すスイッチパネル６２が設けられる。スイッチパネル６２には、ライト点灯スイッチ５９及び点灯状態表示ＬＥＤ６３が設けられる。ライト点灯スイッチ５９は、使用者がＬＥＤライト５８の点灯、消灯を指示するためのスイッチ（ここではボタンスイッチ）である。点灯状態表示ＬＥＤ６３は、ＬＥＤライト５８が点灯している間に点灯して使用者に報知する。 FIG. 1 is a side view of a state where a battery pack 10 is connected, of an electric power tool 50 which is an example of an electric device according to an embodiment of the present invention. Referring to FIG. 1, the front and back and up and down directions orthogonal to each other are defined. The electric power tool 50 is a cordless type portable cutting machine (portable circular saw), and operates with the power of the battery pack 10 detachably mounted. The battery pack 10 is slidably attached to the rear end portion of the housing 60 of the power tool 50 from the rear. The housing 60 is connected to a metal base 71 such as aluminum and positioned above the base 71. The lower surface of the base 71 is a sliding surface with the work material. The housing 60 accommodates the motor 51, the control unit 55, and various other circuit components shown in FIG. Further, a reduction gear mechanism (not shown) for transmitting the rotation of the motor 51 to the saw blade 70 is housed and held in the housing 60, and the saw blade 70 is rotationally driven by the motor 51 via the reduction gear mechanism. The housing 60 holds an LED light 58 for illuminating the work material. The grip portion 61 of the housing 60 is provided with a trigger switch 52 for the user to instruct to drive or stop the motor 51. A switch panel 62 shown in FIG. 2 is provided in the space facing the upper side of the outer surface of the housing 60 and formed by the grip portion 61 and the housing 60. The switch panel 62 is provided with a light lighting switch 59 and a lighting state display LED 63. The light lighting switch 59 is a switch (here, a button switch) for instructing the user to turn on or off the LED light 58. The lighting state display LED 63 lights up while the LED light 58 is on to notify the user.
図３は、過負荷保護機能及び温度保護機能が作動した各場合における図１のＬＥＤライト５８の点灯状態説明図である。ＬＥＤライト５８は、被削材を照らすライトであると共に、本体側報知部の例示であり、図６に示す制御部５５の制御に従い、過負荷保護機能の作動時には早い点滅表示となり（例えば０．１秒ごとに点灯、消灯を繰り返し）、温度保護機能の作動時には遅い点滅表示となり（例えば０．５秒ごとに点灯、消灯を繰り返す）、使用者に報知する。ＬＥＤライト５８の点滅による保護機能の作動の報知は、ライト点灯スイッチ５９が押された場合に行ってもよいし、ライト点灯スイッチ５９が押されるか否かに関わらず過負荷や高温状態になった際に自動的に行ってもよい。ＬＥＤライト５８は、電池パック１０の過放電や高温異常についての報知は行わない。 FIG. 3 is an explanatory view of the lighting state of the LED light 58 of FIG. 1 in each case where the overload protection function and the temperature protection function are activated. The LED light 58 is a light that illuminates the work material and is an example of the main body side informing unit, and under the control of the control unit 55 shown in FIG. Lights are turned on and off repeatedly every second), and when the temperature protection function is activated, it blinks slowly (for example, it is turned on and off every 0.5 seconds) and the user is notified. Notification of the operation of the protection function by blinking of the LED light 58 may be performed when the light lighting switch 59 is pressed, or an overload or high temperature state occurs regardless of whether the light lighting switch 59 is pressed or not. It may be done automatically at the same time. The LED light 58 does not notify of overdischarge or high temperature abnormality of the battery pack 10.
図４は、図１の電池パック１０の斜視図である。電池パック１０は、図６に示す二次電池セル１１や制御部１５、その他の各種回路部品を内蔵すると共に、後部外面の上方に臨む部分に、スイッチパネル２０を有する。スイッチパネル２０には、残容量表示手段１７及び残容量表示スイッチ１９が設けられる。残容量表示手段１７は、ここでは４つのＬＥＤであり、後述のように、電池パック１０の残容量を表示すると共に、電池パック１０内部の異常を報知する電池側報知部として機能する。残容量表示スイッチ１９は、報知操作部の例示であり、使用者が残容量表示手段１７による表示有無を指示するためのスイッチ（ここではボタンスイッチ）である。 FIG. 4 is a perspective view of the battery pack 10 of FIG. The battery pack 10 incorporates the secondary battery cell 11 and the control unit 15 shown in FIG. 6 and other various circuit components, and has a switch panel 20 at a portion facing above the rear outer surface. The switch panel 20 is provided with a remaining capacity display unit 17 and a remaining capacity display switch 19. The remaining capacity display unit 17 is four LEDs here, and as described later, functions as a battery side notification unit that displays the remaining capacity of the battery pack 10 and reports an abnormality inside the battery pack 10. The remaining capacity display switch 19 is an example of a notification operation unit, and is a switch (here, a button switch) for the user to instruct the presence / absence of display by the remaining capacity display means 17.
図５は、電池残量、温度保護機能作動有無、及び故障有無に応じた図４の残容量表示手段１７の点灯状態説明図である。残容量表示手段１７は、制御部１５の制御に従い、電池パック１０の満充電のときは４つのＬＥＤが共に点灯し、電池パック１０の残容量が低下するにつれて段階的にＬＥＤの点灯数が少なくなり、残容量が無くなると１つのＬＥＤが点滅し、電池パック１０の温度保護機能作動時には４つのＬＥＤが点滅し、電池パック１０の故障時には２つのＬＥＤが点滅する。なお、ＬＥＤの点滅個数や点滅方法はこれに限るものではない。 FIG. 5 is an explanatory view of the lighting state of the remaining capacity display means 17 of FIG. Under the control of control unit 15, remaining capacity display means 17 turns on all four LEDs when battery pack 10 is fully charged, and the number of lighted LEDs decreases in stages as remaining capacity of battery pack 10 decreases. When the remaining capacity is lost, one LED blinks, four LEDs blink when the temperature protection function of the battery pack 10 is activated, and two LEDs blink when the battery pack 10 breaks down. The number of blinks of the LEDs and the method of blink are not limited to this.
図６は、電動工具５０及び電池パック１０を互いに接続した状態のブロック図である。図６に示すように、電池パック１０及び電動工具５０はそれぞれ、プラス端子、ＬＳ端子、Ｖ端子、Ｔ端子、ＬＤ端子、及びマイナス端子を備える。電池パック１０及び電動工具５０の同名の端子同士が互いに電気的に接続される。 FIG. 6 is a block diagram of the state where the power tool 50 and the battery pack 10 are connected to each other. As shown in FIG. 6, each of the battery pack 10 and the power tool 50 includes a plus terminal, an LS terminal, a V terminal, a T terminal, an LD terminal, and a minus terminal. The terminals of the same name of the battery pack 10 and the power tool 50 are electrically connected to each other.
電池パック１０は、自身のプラス端子とマイナス端子との間に直列接続された複数の（ここでは５つの）二次電池セル１１を備える。セル電圧監視ＩＣ１２は、各々の二次電池セル１１の電圧を監視し、少なくとも１つの二次電池セル１１の電圧が所定値以下になると、過放電と判断し、制御部（電池側制御部）１５に過放電検出信号を送信する。二次電池セル１１には電流検出用の抵抗Ｒ１が直列接続される。電流検出回路１４は、抵抗Ｒ１の両端の電圧により二次電池セル１１の出力電流を検出し、制御部１５に検出結果を送信する。電源回路１３は、二次電池セル１１の出力電圧からセル電圧監視ＩＣ１２及び制御部１５の動作電圧VDD1を生成する。電池電圧検出回路１６は、二次電池セル１１の出力電圧を検出し、制御部１５に検出結果を送信する。残容量表示手段１７は、例えばＬＥＤであり、制御部１５の制御により電池パック１０の残容量を使用者に表示（報知）する。セル温度検出手段１８は、二次電池セル１１の近傍に配置されたサーミスタＴＨの電圧により二次電池セル１１の温度を検出し、制御部１５に検出結果を送信する。残容量表示スイッチ１９は、使用者が残容量表示手段１７への残容量表示を指示するためのスイッチである。 Battery pack 10 includes a plurality of (here, five) secondary battery cells 11 connected in series between its plus terminal and minus terminal. The cell voltage monitoring IC 12 monitors the voltage of each of the secondary battery cells 11, and determines that the battery is overdischarged when the voltage of at least one of the secondary battery cells 11 becomes lower than a predetermined value, and the control unit (battery side control unit) Send an overdischarge detection signal to 15. In the secondary battery cell 11, a resistor R1 for current detection is connected in series. The current detection circuit 14 detects the output current of the secondary battery cell 11 by the voltage across the resistor R1 and transmits the detection result to the control unit 15. The power supply circuit 13 generates an operating voltage VDD1 of the cell voltage monitoring IC 12 and the control unit 15 from the output voltage of the secondary battery cell 11. The battery voltage detection circuit 16 detects the output voltage of the secondary battery cell 11 and transmits the detection result to the control unit 15. The remaining capacity display unit 17 is, for example, an LED, and displays (notifies) the remaining capacity of the battery pack 10 to the user under the control of the control unit 15. The cell temperature detection unit 18 detects the temperature of the secondary battery cell 11 based on the voltage of the thermistor TH disposed in the vicinity of the secondary battery cell 11, and transmits the detection result to the control unit 15. The remaining capacity display switch 19 is a switch for instructing the user to display the remaining capacity on the remaining capacity display means 17.
電池パック１０は、電動工具５０から送信されるシリアル通信信号（デジタル信号）を制御部１５に受信させるための経路を成すシリアル通信用受信回路３１と、サーミスタＴＨの一端のアナログ電圧（二次電池セル１１の温度情報）を電動工具５０に送信するための経路を成す温度情報送信回路３２と、を有する。電池パック１０のＬＳ端子は、第１切替回路２１を介して、シリアル通信用受信回路３１及び温度情報送信回路３２のいずれかに択一的に接続される。第１切替回路２１は、一端がＬＳ端子に接続され、制御端子がＶ端子に接続され、Ｖ端子から入力される信号に応じて、他端がシリアル通信用受信回路３１及び温度情報送信回路３２のいずれかに択一的に接続される。ここでは、Ｖ端子からの信号がローレベルのとき、第１切替回路２１の他端はシリアル通信用受信回路３１に接続され、Ｖ端子からの信号がハイレベルのとき、第１切替回路２１の他端は温度情報送信回路３２に接続される。サーミスタＴＨの一端は、第１切替回路２１の他端に接続される。サーミスタＴＨの他端とグランドとの間に、ＦＥＴ等のスイッチング素子Ｑ１が設けられる。第３切替回路２３は、一端がＶ端子に接続され、制御端子が制御部１５に接続され、制御部１５から入力される信号に応じて、他端がスイッチング素子Ｑ１の制御端子（ゲート）及びサーミスタＴＨの一端（第１切替回路２１の他端）に択一的に接続される。 The battery pack 10 includes a serial communication receiving circuit 31 forming a path for causing the control unit 15 to receive a serial communication signal (digital signal) transmitted from the power tool 50, and an analog voltage (secondary battery) at one end of the thermistor TH. Temperature information transmitting circuit 32 forming a path for transmitting the temperature information of the cell 11 to the electric power tool 50. The LS terminal of the battery pack 10 is alternatively connected to one of the serial communication reception circuit 31 and the temperature information transmission circuit 32 through the first switching circuit 21. The first switching circuit 21 has one end connected to the LS terminal, the control terminal connected to the V terminal, and the other end connected to the serial communication receiving circuit 31 and the temperature information transmitting circuit 32 according to the signal input from the V terminal. Is alternatively connected to Here, when the signal from the V terminal is at the low level, the other end of the first switching circuit 21 is connected to the serial communication receiving circuit 31, and when the signal from the V terminal is at the high level, the other terminal of the first switching circuit 21 is The other end is connected to the temperature information transmission circuit 32. One end of the thermistor TH is connected to the other end of the first switching circuit 21. A switching element Q1 such as an FET is provided between the other end of the thermistor TH and the ground. The third switching circuit 23 has one end connected to the V terminal, the control terminal connected to the control unit 15, and the other end connected to the control terminal (gate) of the switching element Q1 according to a signal input from the control unit 15. It is alternatively connected to one end of the thermistor TH (the other end of the first switching circuit 21).
電池パック１０は、識別抵抗Ｒａの一端のアナログ電圧（電池パック１０の識別情報）を電動工具５０に送信するための経路を成す識別情報送信回路３５と、制御部１５から電動工具５０に向けたシリアル通信信号（デジタル信号）を送信するための経路を成すシリアル通信用送信回路３６と、を有する。電池パック１０のＴ端子は、第２切替回路２２を介して、識別情報送信回路３５及びシリアル通信用送信回路３６のいずれかに択一的に接続される。第２切替回路２２は、一端がＴ端子に接続され、制御端子が制御部１５に接続され、制御部１５から入力される信号に応じて、他端が識別情報送信回路３５及びシリアル通信用送信回路３６のいずれかに択一的に接続される。識別抵抗Ｒａの一端は、第２切替回路２２の他端に接続される。識別抵抗Ｒａの他端とグランドとの間に、識別抵抗Ｒｂ及びＦＥＴ等のスイッチング素子Ｑ２が並列接続される。スイッチング素子Ｑ２の制御端子（ゲート）は、Ｖ端子に接続される。Ｖ端子から入力される信号がハイレベルのとき、スイッチング素子Ｑ２はオンとなり、識別抵抗Ｒｂには電流が流れない。Ｖ端子から入力される信号がローレベルのとき、スイッチング素子Ｑ２はオフとなり、識別抵抗Ｒｂに電流が流れる。 The battery pack 10 is directed to the power tool 50 from the control unit 15 and the identification information transmission circuit 35 forming a path for transmitting the analog voltage (identification information of the battery pack 10) at one end of the identification resistance Ra to the power tool 50. And a serial communication transmission circuit 36 forming a path for transmitting a serial communication signal (digital signal). The T terminal of the battery pack 10 is alternatively connected to one of the identification information transmission circuit 35 and the serial communication transmission circuit 36 via the second switching circuit 22. The second switching circuit 22 has one end connected to the T terminal, the control terminal connected to the control unit 15, and the other end transmitting the identification information transmission circuit 35 and serial communication according to the signal input from the control unit 15. It is alternatively connected to one of the circuits 36. One end of the identification resistor Ra is connected to the other end of the second switching circuit 22. A switching resistor Q2 such as a switching resistor Rb and a FET is connected in parallel between the other end of the switching resistor Ra and the ground. The control terminal (gate) of the switching element Q2 is connected to the V terminal. When the signal input from the V terminal is at the high level, the switching element Q2 is turned on, and no current flows in the identification resistor Rb. When the signal input from the V terminal is at a low level, the switching element Q2 is turned off, and a current flows in the identification resistor Rb.
電池パック１０において、ＬＤ端子とグランドとの間には、ＦＥＴ等のスイッチング素子Ｑ３が設けられる。スイッチング素子Ｑ３の制御端子（ゲート）は、制御部１５に接続される。制御部１５から制御端子に入力される信号がハイレベルのとき、スイッチング素子Ｑ３はオンとなり、同信号がローレベルのとき、スイッチング素子Ｑ３はオフとなる。 In the battery pack 10, a switching element Q3 such as an FET is provided between the LD terminal and the ground. The control terminal (gate) of the switching element Q3 is connected to the control unit 15. When the signal input from the control unit 15 to the control terminal is at the high level, the switching element Q3 is turned on, and when the signal is at the low level, the switching element Q3 is turned off.
機器本体の例示である電動工具５０において、駆動源となるモータ５１は、ブラシレスモータである。モータ５１は、ブラシ付きモータであってもよい。インバータ回路６５は、周知のとおり三相ブリッジ接続されたＦＥＴやＩＧＢＴ等のスイッチング素子からなり、モータ５１に駆動電流を供給する。各スイッチング素子のスイッチング制御（例えばＰＷＭ制御）は、マイクロコントローラ等の制御部５５によって行われる。モータ５１の駆動電流は、抵抗Ｒ５によって電圧に変換され、当該電圧を受信した電流検出回路５４によって検出され、制御部５５に送信される。インバータ回路６５の温度は、インバータ回路６５の近傍に配置されたサーミスタ等の温度検出素子６６によって電圧に変換され、インバータ温度検出回路６７によって検出され、制御部５５に送信される。 In an electric tool 50 which is an example of an apparatus body, a motor 51 as a driving source is a brushless motor. The motor 51 may be a brushed motor. The inverter circuit 65 is composed of switching elements such as FETs and IGBTs connected in a three-phase bridge manner as known in the art, and supplies a drive current to the motor 51. Switching control (for example, PWM control) of each switching element is performed by a control unit 55 such as a microcontroller. The drive current of the motor 51 is converted into a voltage by the resistor R5, detected by the current detection circuit 54 that has received the voltage, and transmitted to the control unit 55. The temperature of the inverter circuit 65 is converted into a voltage by a temperature detection element 66 such as a thermistor disposed in the vicinity of the inverter circuit 65, detected by the inverter temperature detection circuit 67, and transmitted to the control unit 55.
トリガスイッチ５２は、インバータ回路６５と直列接続される。スイッチ状態検出回路５３は、トリガスイッチ５２のインバータ回路６５側の端子電圧によりトリガスイッチ５２のオンオフを検出し、制御部５５に検出結果を送信する。制御部５５は、トリガスイッチ５２がオンになると、インバータ回路６５の各スイッチング素子を制御し、モータ５１に駆動電流を供給する。電源回路５６は、プラス端子からの入力電圧（二次電池セル１１の出力電圧）から制御部５５の動作電圧VDD2を生成する。電池電圧検出回路５７は、プラス端子の電圧により二次電池セル１１の出力電圧を検出し、制御部５５に検出結果を送信する。 The trigger switch 52 is connected in series to the inverter circuit 65. The switch state detection circuit 53 detects on / off of the trigger switch 52 by the terminal voltage of the trigger switch 52 on the side of the inverter circuit 65, and transmits the detection result to the control unit 55. When the trigger switch 52 is turned on, the control unit 55 controls each switching element of the inverter circuit 65 to supply a drive current to the motor 51. The power supply circuit 56 generates an operating voltage VDD2 of the control unit 55 from the input voltage (the output voltage of the secondary battery cell 11) from the positive terminal. The battery voltage detection circuit 57 detects the output voltage of the secondary battery cell 11 based on the voltage of the positive terminal, and transmits the detection result to the control unit 55.
電動工具５０において、制御部５５は、ＬＳ端子、Ｖ端子、Ｔ端子、及びＬＤ端子にそれぞれ接続する端子を有する。抵抗Ｒ６の一端は、電源ラインに接続される。抵抗Ｒ６の他端とグランドとの間に、抵抗Ｒ７及びＦＥＴ等のスイッチング素子Ｑ６が直列接続される。抵抗Ｒ６及び抵抗Ｒ７の相互接続点は、ＬＳ端子に接続される。スイッチング素子Ｑ６の制御端子（ゲート）は、制御部５５に接続される。抵抗Ｒ８は、電源ラインとＴ端子との間に設けられる。抵抗Ｒ９は、電源ラインとＬＤ端子との間に設けられる。 In the power tool 50, the control unit 55 has terminals connected to the LS terminal, the V terminal, the T terminal, and the LD terminal. One end of the resistor R6 is connected to the power supply line. A resistor R7 and a switching element Q6 such as an FET are connected in series between the other end of the resistor R6 and the ground. The interconnection point of the resistor R6 and the resistor R7 is connected to the LS terminal. The control terminal (gate) of the switching element Q6 is connected to the control unit 55. The resistor R8 is provided between the power supply line and the T terminal. The resistor R9 is provided between the power supply line and the LD terminal.
電動工具５０の制御部５５は、Ｖ端子を介して電池パック１０に送信する信号により、ＬＳ端子の機能を切り替えることができる。具体的には、制御部５５は、Ｖ端子からハイレベルの信号を送信すると、第１切替回路２１の他端の接続先が温度情報送信回路３２となり、第１切替回路２１及びＬＳ端子を介して、サーミスタＴＨの一端の電圧を受信することができる。なお、電池パック１０の制御部１５は、通常時は第３切替回路２３の他端の接続先をスイッチング素子Ｑ１の制御端子としているため、Ｖ端子の信号がハイレベルのときはスイッチング素子Ｑ１はオンとなり、サーミスタＴＨの一端（温度情報送信回路３２）には二次電池セル１１の温度に応じたアナログ電圧が出力される。また、Ｖ端子の信号がハイレベルのときは、スイッチング素子Ｑ２はオンとなり、Ｔ端子の電圧は、電動工具５０の電源電圧VDD2を抵抗Ｒ８及び抵抗Ｒａで分圧した第１識別電圧となる。 The control unit 55 of the power tool 50 can switch the function of the LS terminal by the signal transmitted to the battery pack 10 via the V terminal. Specifically, when the control unit 55 transmits a high level signal from the V terminal, the connection destination of the other end of the first switching circuit 21 becomes the temperature information transmitting circuit 32, and via the first switching circuit 21 and the LS terminal Thus, the voltage at one end of the thermistor TH can be received. The control unit 15 of the battery pack 10 normally uses the connection destination of the other end of the third switching circuit 23 as the control terminal of the switching element Q1. Therefore, when the signal of the V terminal is at high level, the switching element Q1 is It turns on, and an analog voltage corresponding to the temperature of the secondary battery cell 11 is output to one end (the temperature information transmission circuit 32) of the thermistor TH. When the signal at the V terminal is at high level, the switching element Q2 is turned on, and the voltage at the T terminal becomes a first identification voltage obtained by dividing the power supply voltage VDD2 of the power tool 50 by the resistor R8 and the resistor Ra.
一方、制御部５５は、Ｖ端子からローレベルの信号を送信すると、第１切替回路２１の他端の接続先がシリアル通信用受信回路３１となり、ＬＳ端子を介して電池パック１０の制御部１５にシリアル通信信号を送信することができる。シリアル通信信号は、スイッチング素子Ｑ６のオンオフにより作成される。また、Ｖ端子の信号がローレベルのときは、スイッチング素子Ｑ２はオフとなり、Ｔ端子の電圧は、電動工具５０の電源電圧VDD2を、抵抗Ｒ８と、抵抗Ｒａ及び抵抗Ｒｂの直列合成抵抗と、で分圧した第２識別電圧となる。制御部５５は、第１及び第２識別電圧の双方を基に、電池パック１０の情報を得ることができる。 On the other hand, when the control unit 55 transmits a low level signal from the V terminal, the connection destination of the other end of the first switching circuit 21 becomes the serial communication reception circuit 31 and the control unit 15 of the battery pack 10 via the LS terminal. Can transmit serial communication signals. The serial communication signal is generated by turning on and off the switching element Q6. When the signal at the V terminal is low, the switching element Q2 is turned off, and the voltage at the T terminal is determined by the power supply voltage VDD2 of the power tool 50, the resistor R8, and a series combined resistor of the resistor Ra and the resistor Rb. The second identification voltage is obtained by voltage division. The control unit 55 can obtain information of the battery pack 10 based on both of the first and second identification voltages.
電池パック１０の制御部１５は、第２切替回路２２の他端の接続先を切り替えることにより、Ｔ端子の機能を切り替えることができる。具体的には、制御部１５は、第２切替回路２２の他端の接続先をシリアル通信用送信回路３６とすれば、第２切替回路２２及びＴ端子を介して、電動工具５０に、シリアル通信信号を送信することができる。一方、制御部１５は、第２切替回路２２の接続先を識別情報送信回路３５とすれば、第２切替回路２２及びＴ端子を介して、電動工具５０に、識別抵抗Ｒａの一端のアナログ電圧を出力することができる。 The control unit 15 of the battery pack 10 can switch the function of the T terminal by switching the connection destination of the other end of the second switching circuit 22. Specifically, assuming that the connection destination of the other end of the second switching circuit 22 is the transmission circuit 36 for serial communication, the control unit 15 serially connects the power tool 50 via the second switching circuit 22 and the T terminal. Communication signals can be sent. On the other hand, assuming that the connection destination of the second switching circuit 22 is the identification information transmitting circuit 35, the control unit 15 causes the power tool 50 to receive the analog voltage at one end of the identification resistance Ra via the second switching circuit 22 and the T terminal. Can be output.
電動工具５０から電池パック１０に送信されるシリアル通信信号の中身は、例えば、電動工具５０の種類や型番、過放電停止の通知、過放電表示の指示、異常検出用の閾値（例えば過放電閾値、過電流閾値、二次電池セル１１の高温保護閾値）、残量表示の表示閾値（残容量表示を切り替える閾値）、エラーログ、使用履歴情報、電池パック１０に要求する情報などである。なお、電動工具５０から電池パック１０に、全ての情報を送信してもよいし、電池パック１０から要求された情報のみを送信してもよい。電池パック１０から電動工具５０に送信されるシリアル通信信号の中身は、例えば、電池パック１０の種類や型番、二次電池セル１１の種別、エラーログ、使用履歴情報、電動工具５０に要求する情報などである。なお、電池パック１０から電動工具５０に、全ての情報を送信してもよいし、電動工具５０から要求された情報のみを送信してもよい。シリアル通信では、識別抵抗Ｒａ、Ｒｂの電圧よりも、電池パック１０の識別情報を、より多く乃至より詳細に通知することができる。シリアル（デジタル）通信は、一方の制御部（マイコン）から出力するハイ信号又はロー信号を、他方の制御部（マイコン）へ入出力することで、一方の信号を他方に出力するものである。 The contents of the serial communication signal transmitted from the electric power tool 50 to the battery pack 10 include, for example, the type and model number of the electric power tool 50, notification of overdischarge stop, instruction of overdischarge display, threshold for abnormality detection (for example, overdischarge threshold) , An overcurrent threshold, a high temperature protection threshold of the secondary battery cell 11, a display threshold of the remaining amount display (a threshold for switching the remaining capacity display), an error log, usage history information, information required for the battery pack 10, and the like. Note that all the information may be transmitted from the power tool 50 to the battery pack 10, or only the information requested from the battery pack 10 may be transmitted. The contents of the serial communication signal transmitted from the battery pack 10 to the power tool 50 include, for example, the type and model number of the battery pack 10, the type of the secondary battery cell 11, error log, use history information, and information required for the power tool 50 Etc. Note that all the information may be transmitted from the battery pack 10 to the power tool 50, or only the information requested from the power tool 50 may be transmitted. In serial communication, the identification information of the battery pack 10 can be notified in more or more detail than the voltages of the identification resistances Ra and Rb. In serial (digital) communication, one signal is output to the other by inputting / outputting a high signal or low signal output from one control unit (microcomputer) to the other control unit (microcomputer).
電池パック１０の制御部１５は、電池パック１０が図示しない充電器に接続されていて充電停止条件が満たされた場合に、第３切替回路２３の他端の接続先をサーミスタＴＨの一端（第１切替回路２１の他端）とする。充電器は充電中にＶ端子の信号をハイレベルとしているため、第１切替回路２１の他端の接続先は温度情報送信回路３２である。したがって、Ｖ端子の信号（ハイレベル）は、第３切替回路２３、第１切替回路２１及びＬＳ端子を介して、充電器に送信され、充電停止の旨が通知されることになる。 When the battery pack 10 is connected to a charger (not shown) and the charge stop condition is satisfied, the control unit 15 of the battery pack 10 sets the connection destination of the other end of the third switching circuit 23 to one end of the thermistor TH 1) the other end of the switching circuit 21). Since the charger sets the signal of the V terminal to high level during charging, the connection destination of the other end of the first switching circuit 21 is the temperature information transmission circuit 32. Therefore, the signal (high level) of the V terminal is transmitted to the charger via the third switching circuit 23, the first switching circuit 21 and the LS terminal, and notification of the charge stop is notified.
電池パック１０の制御部１５は、過電流、過放電、及び二次電池セル１１の異常高温のいずれかを検出すると、スイッチング素子Ｑ３をターンオンする。これにより、ＬＤ端子の電圧が電動工具５０の電源電圧VDD2からグランド電位に低下し、制御部５５に放電禁止の旨が通知される（異常検出信号が送信される）ことになる。 When the control unit 15 of the battery pack 10 detects any of the overcurrent, the overdischarge, and the abnormally high temperature of the secondary battery cell 11, it turns on the switching element Q3. As a result, the voltage at the LD terminal drops from the power supply voltage VDD2 of the power tool 50 to the ground potential, and the control unit 55 is notified of the prohibition of discharge (an abnormality detection signal is transmitted).
図７は、電動工具５０の第１制御フローチャートである。制御部５５は、待機状態（Ｓ１）において、インバータ回路６５を構成するスイッチング素子（以下、単に「スイッチング素子」とも表記）の温度が高温保護解除閾値の例示である９０℃以下になると（Ｓ１ａのＹＥＳ）、高温異常フラグをクリアする（Ｓ１ｂ）。制御部５５は、トリガスイッチ５２がオンになると（Ｓ２のＹＥＳ）、高温異常フラグがなく（Ｓ３のＮＯ）、かつスイッチング素子の温度が高温閾値の例示である１００℃以上でなければ（Ｓ４のＮＯ）、モータ５１を駆動する（Ｓ５）。制御部５５は、スイッチング素子の温度が１００℃以上になると（Ｓ４のＹＥＳ）、高温異常フラグを立て（セットし）（Ｓ６）、モータ５１を停止し（Ｓ７）、ＬＥＤライト５８を点滅させる（Ｓ８）。ここでの点滅は、０．５秒の点灯と０．５秒の消灯を繰り返すものである（図３の遅い点滅）。制御部５５は、トリガスイッチ５２がオンである限りは（Ｓ９のＹＥＳ）、ＬＥＤライト５８の点滅制御を継続する（Ｓ８）。制御部５５は、トリガスイッチ５２がオフになると（Ｓ９のＮＯ）、点滅解除用のタイマカウントを開始する（Ｓ１０）。制御部５５は、タイマカウント開始から所定時間の例示である１０秒が経過した場合（Ｓ１１のＹＥＳ）、あるいはトリガスイッチ５２がオンされた場合（Ｓ１２のＹＥＳ）、ＬＥＤライト５８を消灯し（Ｓ１３）、待機状態に戻る（Ｓ１）。 FIG. 7 is a first control flowchart of the power tool 50. When the temperature of the switching element (hereinafter simply referred to as "switching element") constituting the inverter circuit 65 in the standby state (S1) becomes 90.degree. YES), and clear the high temperature abnormality flag (S1 b). When the trigger switch 52 is turned on (YES in S2), the control unit 55 does not have the high temperature abnormality flag (NO in S3), and the temperature of the switching element is not 100 ° C. or higher which is an example of the high temperature threshold (S4 (NO), the motor 51 is driven (S5). When the temperature of the switching element reaches 100 ° C. or higher (YES in S4), the controller 55 sets (set) the high temperature abnormality flag (S6), stops the motor 51 (S7), and blinks the LED light 58 (S6). S8). The blinking here is a repetition of lighting for 0.5 seconds and turning off for 0.5 seconds (slow blinking in FIG. 3). As long as the trigger switch 52 is on (YES in S9), the control unit 55 continues the blinking control of the LED light 58 (S8). When the trigger switch 52 is turned off (NO in S9), the control unit 55 starts timer counting for canceling the blinking (S10). The control unit 55 turns off the LED light 58 (S13) if 10 seconds, which is an example of a predetermined time, has elapsed from the start of timer counting (YES in S11) or the trigger switch 52 is turned on (YES in S12). ), Return to the standby state (S1).
図８は、電動工具５０の第２制御フローチャートである。以下、図７との相違点を中心に説明する。制御部５５は、ＬＥＤライト５８の消灯（Ｓ１３）の後、トリガスイッチ５２のオフを確認してから（Ｓ１６のＹＥＳ）、待機状態に戻る（Ｓ１）。この場合、トリガスイッチ５２がオンになったこと（Ｓ１２のＹＥＳ）によりＬＥＤライト５８がオフになった（Ｓ１３）後、一旦トリガスイッチ５２をオフにしなければモータ５１が再起動しないため、モータ５１が不意に回転することを抑制できる。 FIG. 8 is a second control flowchart of the power tool 50. Hereinafter, differences from FIG. 7 will be mainly described. After confirming that the trigger switch 52 is turned off after the LED light 58 is turned off (S13) (YES in S16), the control unit 55 returns to the standby state (S1). In this case, after the LED light 58 is turned off (S13) because the trigger switch 52 is turned on (YES in S12), the motor 51 is not restarted unless the trigger switch 52 is once turned off. Can be prevented from rotating unexpectedly.
図９は、電動工具５０の第３制御フローチャートである。以下、図８との相違点を中心に説明する。制御部５５は、ＬＥＤライト５８の点滅制御（Ｓ８）をしている場合に、トリガスイッチ５２がオフになって（Ｓ９のＮＯ）、再度オンされた場合（Ｓ１２のＹＥＳ）にＬＥＤライト５８を消灯するが、ＬＥＤライト５８の点滅制御（Ｓ８）から所定時間が経過したことによるＬＥＤライト５８の消灯は行わない。このため、使用者によるトリガスイッチ５２の操作がなければＬＥＤライト５８の点滅制御（Ｓ８）が終わらないため、使用者への報知が確実となる。 FIG. 9 is a third control flowchart of the power tool 50. Hereinafter, differences from FIG. 8 will be mainly described. The control unit 55 turns off the LED light 58 when the trigger switch 52 is turned off (NO in S9) and turned on again (YES in S12) when the LED light 58 is controlled to blink (S8). Although the light is turned off, the turning off of the LED light 58 due to the passage of a predetermined time from the blinking control of the LED light 58 (S8) is not performed. For this reason, since the blinking control (S8) of the LED light 58 does not end unless the user operates the trigger switch 52, notification to the user is assured.
図１０は、電動工具５０の第４制御フローチャートである。以下、図７との相違点を中心に説明する。制御部５５は、モータ５１の駆動中（Ｓ５）に、モータ５１の駆動電流（以下「モータ電流」とも表記）が過電流閾値の例示である１１０Ａ以上になると（Ｓ５ａのＹＥＳ）、モータ５１を停止し（Ｓ７）、ＬＥＤライト５８を点滅させる（Ｓ８ａ）。ここでの点滅は、０．１秒の点灯と０．１秒の消灯を繰り返すものである（図３の早い点滅）。 FIG. 10 is a fourth control flowchart of the power tool 50. Hereinafter, differences from FIG. 7 will be mainly described. If the drive current of motor 51 (hereinafter also referred to as "motor current") becomes 110A or more, which is an example of the overcurrent threshold (YES in S5a), controller 55 controls motor 51 while driving motor 51 (S5). The operation is stopped (S7), and the LED light 58 is blinked (S8a). The blinking here is a repetition of lighting for 0.1 seconds and turning off for 0.1 seconds (fast blinking in FIG. 3).
図１１は、電動工具５０の第５制御フローチャートである。以下、図１０との相違点を中心に説明する。制御部５５は、図８における制御と同様に、ＬＥＤライト５８の消灯（Ｓ１３）の後、トリガスイッチ５２のオフを確認してから（Ｓ１６のＹＥＳ）、待機状態に戻る（Ｓ１）。なお、図７～図９に示すスイッチング素子の高温保護と、図１０又は図１１に示す過電流保護とは、併存可能である。また、図１０及び図１１において、図９のＳ１２、Ｓ１３のように、トリガスイッチ５２をオフした後にトリガスイッチ５２を再度オンすることでＬＥＤライト５８を消灯してもよい。 FIG. 11 is a fifth control flowchart of the power tool 50. Hereinafter, differences from FIG. 10 will be mainly described. The control unit 55 returns to the standby state (S1) after confirming that the trigger switch 52 is turned off (S16: YES) after turning off the LED light 58 (S13) as in the control in FIG. Note that the high temperature protection of the switching element shown in FIGS. 7 to 9 and the overcurrent protection shown in FIG. 10 or 11 can coexist. 10 and 11, the LED light 58 may be turned off by turning on the trigger switch 52 again after turning off the trigger switch 52 as in S12 and S13 of FIG.
図１２は、電池パック１０の制御フローチャートである。制御部１５は、二次電池セル１１の温度が高温保護閾値の例示である８０℃以上の場合（Ｓ１０１のＹＥＳ）、セル高温フラグを立て（セットし）（Ｓ１０３）、ＬＤ端子から異常検出信号の例示である放電禁止信号を出力する（Ｓ１０５）。制御部１５は、二次電池セル１１の温度が８０℃以上でない場合（Ｓ１０１のＮＯ）において、二次電池セル１１の温度が高温保護解除閾値の例示である５０℃未満であれば（Ｓ１０７のＹＥＳ）、セル高温フラグをクリアし（Ｓ１０９）、ＬＤ端子からの放電禁止信号を解除する（Ｓ１１１）。制御部１５は、残容量表示スイッチ１９がオンされると（Ｓ１１３のＹＥＳ）、スイッチオフタイマをクリアする（Ｓ１１５）。制御部１５は、残容量表示スイッチ１９がオンでない場合（Ｓ１１３のＮＯ）において、残容量表示スイッチ１９のオフ状態が所定時間の例示である３秒継続していれば（Ｓ１１７のＹＥＳ）、ステップＳ１０１に戻る。制御部１５は、残容量表示スイッチ１９のオフ状態が３秒継続していなければ（Ｓ１１７のＮＯ）、スイッチオフタイマインクリメントする（Ｓ１１９）。制御部１５は、二次電池セル１１の出力電圧（以下「電池電圧」とも表記）がＶ１未満であれば（Ｓ１２１のＹＥＳ）、残容量表示手段１７の１つのＬＥＤを点滅させる（Ｓ１２３）。ここでの点滅は、０．５秒の点灯と０．５秒の消灯を繰り返すものである。制御部１５は、セル高温フラグが立っている場合（Ｓ１２５のＹＥＳ）、残容量表示手段１７の４つのＬＥＤを点滅させる（Ｓ１２７）。ここでの点滅は、０．５秒の点灯と０．５秒の消灯を繰り返すものである。制御部１５は、電池電圧がＶ４より高ければ（Ｓ１３１のＹＥＳ）、残容量表示手段１７の４つのＬＥＤを点灯させる（Ｓ１３３）。制御部１５は、電池電圧がＶ４以下かつＶ３より大きければ（Ｓ１３５のＹＥＳ）、残容量表示手段１７の３つのＬＥＤを点灯させる（Ｓ１３７）。制御部１５は、電池電圧がＶ３以下かつＶ２より大きければ（Ｓ１３９のＹＥＳ）、残容量表示手段１７の２つのＬＥＤを点灯させる（Ｓ１４１）。制御部１５は、電池電圧がＶ２以下であれば（Ｓ１３９のＮＯ）、残容量表示手段１７の１つのＬＥＤを点灯させる（Ｓ１４３）。 FIG. 12 is a control flowchart of the battery pack 10. When the temperature of the secondary battery cell 11 is 80 ° C. or higher, which is an example of the high temperature protection threshold (YES in S101), the control unit 15 sets (sets) the cell high temperature flag (S103) and detects an abnormality detection signal from the LD terminal The discharge inhibition signal which is an example of is output (S105). If the temperature of the secondary battery cell 11 is less than 50 ° C., which is an example of the high temperature protection release threshold, if the temperature of the secondary battery cell 11 is not 80 ° C. or higher (NO in S101) YES), the cell high temperature flag is cleared (S109), and the discharge inhibition signal from the LD terminal is released (S111). When the remaining capacity display switch 19 is turned on (YES in S113), the control unit 15 clears the switch off timer (S115). When remaining capacity display switch 19 is not turned on (NO in S113), control section 15 continues the OFF state of remaining capacity display switch 19 for 3 seconds, which is an example of a predetermined time (YES in S117). It returns to S101. If the off state of the remaining capacity display switch 19 does not continue for 3 seconds (NO in S117), the control unit 15 increments the switch off timer (S119). If the output voltage (hereinafter also referred to as "battery voltage") of the secondary battery cell 11 is less than V1 (YES in S121), the control unit 15 blinks one LED of the remaining capacity display means 17 (S123). The blinking here is repeating lighting of 0.5 seconds and turning off of 0.5 seconds. When the cell high temperature flag is set (YES in S125), the control unit 15 blinks the four LEDs of the remaining capacity display unit 17 (S127). The blinking here is repeating lighting of 0.5 seconds and turning off of 0.5 seconds. If the battery voltage is higher than V4 (YES in S131), the control unit 15 turns on the four LEDs of the remaining capacity display unit 17 (S133). If the battery voltage is lower than V4 and higher than V3 (YES in S135), the control unit 15 turns on the three LEDs of the remaining capacity display means 17 (S137). If the battery voltage is lower than V3 and higher than V2 (YES in S139), the controller 15 turns on the two LEDs of the remaining capacity display means 17 (S141). If the battery voltage is V2 or less (NO in S139), the control unit 15 causes one LED of the remaining capacity display unit 17 to light (S143).
図１３は、図１２で示した、二次電池セル１１の温度が高温保護閾値（８０℃）になることを抑制するための電動工具５０におけるモータ駆動制御の第１例を示すフローチャートである。電池パック１０の制御部１５は、二次電池セル１１の温度を検出し（Ｓ５１）、高温保護閾値よりも低い所定温度の例示である６０℃以上であれば（Ｓ５２のＹＥＳ）、シリアル通信用送信回路３６を介して電池パック１０（二次電池セル１１）の温度情報を制御部５５に送信する。制御部５５は、電池パック１０から温度情報を受信すると、或いは、制御部５５が定期的にシリアル通信用送信回路３６を介して電池パック１０の温度を読み取って電池パック１０の温度が所定温度以上になったと判断すると、インバータ回路６５を構成するスイッチング素子の制御端子（ゲート）に印加するＰＷＭ信号のデューティ（以下、単に「デューティ」とも表記）を５０％に固定してモータ５１を駆動する（Ｓ５３）。このとき、二次電池セル１１が高温であるためにデューティを５０％に固定した制御となっていることを示すために、制御モードＬＥＤによる表示を行う（Ｓ５４）。制御モードＬＥＤは、残容量表示手段１７を用いて、図５に示す表示以外、例えば、４つのＬＥＤを１つおきに点灯する等、の表示を行う。なお、点灯でなく点滅でもよく、図５に示す表示と区別できればよい。一方、制御部５５は、シリアル通信用送信回路３６を介して電池パック１０の温度情報（所定温度以上の信号）が入力されない場合や、シリアル通信用送信回路３６を介して定期的に読み取った二次電池セル１１の温度が６０℃以上でなければ（Ｓ５２のＮＯ）、定回転数制御を行い（Ｓ５５）、モータ５１の回転数が一定となるようにデューティを調整する（Ｓ５６）。定回転数制御では、モータ５１を正常に駆動できているため制御モードＬＥＤを消灯する（Ｓ５７）。 FIG. 13 is a flowchart showing a first example of motor drive control in the power tool 50 for suppressing the temperature of the secondary battery cell 11 from becoming the high temperature protection threshold (80 ° C.) shown in FIG. The control unit 15 of the battery pack 10 detects the temperature of the secondary battery cell 11 (S51), and if it is 60 ° C. or more, which is an example of a predetermined temperature lower than the high temperature protection threshold (YES in S52), for serial communication Temperature information of the battery pack 10 (secondary battery cell 11) is transmitted to the control unit 55 via the transmission circuit 36. When the control unit 55 receives temperature information from the battery pack 10, or the control unit 55 periodically reads the temperature of the battery pack 10 via the serial communication transmission circuit 36, the temperature of the battery pack 10 is equal to or higher than a predetermined temperature If it is determined, the motor 51 is driven with the duty (hereinafter simply referred to as “duty”) of the PWM signal applied to the control terminal (gate) of the switching element constituting the inverter circuit 65 fixed at 50% ( S53). At this time, in order to indicate that the control is performed with the duty fixed at 50% because the secondary battery cell 11 is at high temperature, display by the control mode LED is performed (S54). The control mode LED uses the remaining capacity display means 17 to display other than the display shown in FIG. 5, for example, displaying every other four LEDs or the like. In addition, it may be blinking instead of lighting, as long as it can be distinguished from the display shown in FIG. On the other hand, when the control unit 55 does not receive temperature information (signal of a predetermined temperature or more) of the battery pack 10 through the serial communication transmission circuit 36, the control unit 55 periodically reads the temperature information through the serial communication transmission circuit 36. If the temperature of the next battery cell 11 is not 60 ° C. or higher (NO in S52), constant rotation number control is performed (S55), and the duty is adjusted so that the rotation number of the motor 51 becomes constant (S56). In the constant rotation speed control, since the motor 51 can be driven normally, the control mode LED is turned off (S57).
図１４は、図１３に示したフローチャートに基づく電動工具５０及び電池パック１０の動作の第１例を示すタイムチャートである。時刻ｔ１においてトリガスイッチ５２がオンになると、制御部５５がデューティを制御することでモータ５１は定回転数制御され、二次電池セル１１の温度は上昇する。二次電池セル１１の温度が６０℃になった時刻ｔ５以降は、これまでのデューティより低いデューティ５０％での定デューティ制御が行われ、モータ電流が減少することで二次電池セル１１の温度上昇が時刻ｔ５以前と比較して緩やかになる。時刻ｔ３において二次電池セル１１の温度が８０℃になると、二次電池セル１１の高温保護のためにモータ５１が停止する。 FIG. 14 is a time chart showing a first example of the operation of the power tool 50 and the battery pack 10 based on the flowchart shown in FIG. When the trigger switch 52 is turned on at time t1, the control unit 55 controls the duty to control the motor 51 at a constant rotation number, and the temperature of the secondary battery cell 11 rises. After time t5 when the temperature of the secondary battery cell 11 reaches 60 ° C., constant duty control with a duty 50% lower than the current duty is performed, and the temperature of the secondary battery cell 11 decreases due to a decrease in motor current. The rise is gradual compared to before time t5. When the temperature of the secondary battery cell 11 reaches 80 ° C. at time t3, the motor 51 is stopped to protect the secondary battery cell 11 from high temperature.
図１５は、電動工具５０におけるモータ駆動制御の第２例を示すフローチャートである。制御部５５は、インバータ回路６５を構成するスイッチング素子の温度を検出し（Ｓ５１ａ）、図７等に示す高温閾値（１００℃）より低い所定温度の例示である８０℃以上であれば（Ｓ５２ａのＹＥＳ）、デューティを１００％に固定してモータ５１を駆動する（Ｓ５３ａ）。このとき、スイッチング素子が高温であるためにデューティを１００％に固定した制御となっていることを示すために、制御モードＬＥＤによる表示を行う（Ｓ５４ａ）。制御モードＬＥＤは、ＬＥＤライト５８を用いて、例えば、図３に示す表示以外の点滅周期で表示を行う。なお、電池パック１０の残容量表示手段１７を用いて表示させてもよく、図５の表示及び図１３のＳ５４の表示以外とすればよい。制御部５５は、スイッチング素子の温度が８０℃以上でなければ（Ｓ５２ａのＮＯ）、定回転数制御を行い（Ｓ５５）、モータ５１の回転数が一定となるようにデューティを調整する（Ｓ５６）。モータ５１を正常に駆動できているため定回転数制御では、制御モードＬＥＤを消灯する（Ｓ５７）。 FIG. 15 is a flow chart showing a second example of motor drive control in the electric power tool 50. The control unit 55 detects the temperature of the switching element constituting the inverter circuit 65 (S51a), and if it is 80.degree. C. or more which is an example of a predetermined temperature lower than the high temperature threshold (100.degree. C.) shown in FIG. YES), the duty is fixed at 100% and the motor 51 is driven (S53a). At this time, in order to indicate that the control is performed with the duty fixed at 100% because the temperature of the switching element is high, display by the control mode LED is performed (S54a). The control mode LED uses the LED light 58 to perform display, for example, in a blinking cycle other than the display shown in FIG. The display may be made using the remaining capacity display means 17 of the battery pack 10, and may be other than the display of FIG. 5 and the display of S54 of FIG. If the temperature of the switching element is not 80 ° C. or higher (NO in S52a), the control unit 55 performs constant rotation number control (S55), and adjusts the duty such that the rotation number of the motor 51 becomes constant (S56) . Since the motor 51 can be driven normally, the control mode LED is turned off in the constant rotation speed control (S57).
図１６は、図１５に示したフローチャートに基づく電動工具５０及び電池パック１０の動作の第２例を示すタイムチャートである。時刻ｔ１においてトリガスイッチ５２がオンになると、制御部５５がデューティを制御することでモータ５１は定回転数制御され、スイッチング素子の温度は上昇する。スイッチング素子の温度が８０℃になった時刻ｔ２以降は、デューティ１００％での定デューティ制御が行われ、スイッチングによる発熱がなくなることでスイッチング素子の温度上昇が時刻ｔ２以前と比較して緩やかになる。時刻ｔ３においてスイッチング素子の温度が高温閾値の例示である１００℃になると、スイッチング素子の高温保護のためにモータ５１が停止する。 FIG. 16 is a time chart showing a second example of the operation of the power tool 50 and the battery pack 10 based on the flowchart shown in FIG. When the trigger switch 52 is turned on at time t1, the control unit 55 controls the duty to control the motor 51 at a constant rotation number, and the temperature of the switching element rises. After time t2 when the temperature of the switching element reaches 80 ° C., constant duty control with a duty of 100% is performed, and the temperature rise of the switching element becomes gentler compared to that before time t2 by eliminating heat generation by switching. . When the temperature of the switching element reaches 100 ° C., which is an example of the high temperature threshold, at time t3, the motor 51 is stopped for the high temperature protection of the switching element.
図１７は、実施の形態に関し、電動工具５０の異常は電動工具５０のＬＥＤライト５８で表示し、電池パック１０の異常は電池パック１０の残容量表示手段１７で表示する場合の、通常時と異常時のＬＥＤライト５８及び残容量表示手段１７の各々の点灯状態説明図である。電動工具５０のＬＥＤライト５８は、正常時（通常時）にライト点灯スイッチ５９を押すと点灯し、温度異常時はライト点灯スイッチ５９を押した場合又は自動的に点滅する。一方、電池パック１０の残容量表示手段１７は、正常時（通常時）に残容量表示スイッチ１９を押すと残容量に応じた数のＬＥＤが点灯し、温度異常時は残容量表示スイッチ１９を押した場合又は自動的に４つのＬＥＤが点滅する。 FIG. 17 relates to the embodiment, in which the abnormality of the power tool 50 is displayed by the LED light 58 of the power tool 50 and the abnormality of the battery pack 10 is displayed by the remaining capacity display means 17 of the battery pack 10 FIG. 6 is an explanatory view of the lighting state of each of the LED light 58 and the remaining capacity display means 17 at the time of abnormality. The LED light 58 of the power tool 50 lights up when the light lighting switch 59 is pressed in a normal state (normal time), and blinks automatically when the light lighting switch 59 is pressed when the temperature is abnormal. On the other hand, when the remaining capacity display unit 17 of the battery pack 10 normally presses the remaining capacity display switch 19 during normal operation (the normal time), the number of LEDs corresponding to the remaining capacity is turned on. When pressed or automatically, 4 LEDs blink.
本実施の形態によれば、下記の効果を奏することができる。 According to the present embodiment, the following effects can be achieved.
(1) 電動工具５０の異常は電動工具５０のＬＥＤライト５８で表示し、電池パック１０の異常は電池パック１０の残容量表示手段１７で表示するため、使用者は、電動工具５０及び電池パック１０のどちらに異常が発生したか迅速に判別できる。電池パック１０の異常と分かれば、別の電池パック１０に差し替えることで直ちに電動工具５０を使用でき、作業効率を向上できる。 (1) The abnormality of the power tool 50 is displayed by the LED light 58 of the power tool 50, and the abnormality of the battery pack 10 is displayed by the remaining capacity display means 17 of the battery pack 10. It is possible to quickly determine which of the ten has an abnormality. If it is recognized that the battery pack 10 is abnormal, the power tool 50 can be used immediately by replacing it with another battery pack 10, and work efficiency can be improved.
(2) 被削材を照らすＬＥＤライト５８を電動工具５０の異常報知にも兼用するため、別途異常報知用のＬＥＤを設ける場合と比較して、部品点数を削減できる。同様に、電池パック１０の残容量を表示する残容量表示手段１７を電池パック１０の異常報知にも兼用するため、別途異常報知用のＬＥＤを設ける場合と比較して、部品点数を削減できる。 (2) Since the LED light 58 for illuminating the work material is also used to notify the abnormality of the electric power tool 50, the number of parts can be reduced as compared with the case where an LED for notifying the abnormality is separately provided. Similarly, since the remaining capacity display means 17 for displaying the remaining capacity of the battery pack 10 is also used to notify of an abnormality in the battery pack 10, the number of parts can be reduced as compared with the case where an LED for error notification is separately provided.
(3) 二次電池セル１１の温度が所定温度（６０℃）以上になるとデューティを５０％に固定してモータ電流（二次電池セル１１の出力電流）の実効値を低下させるため、二次電池セル１１の温度上昇が抑制され、二次電池セル１１の温度が８０℃以上になって高温保護が作動することによるモータ５１の停止を抑制でき、作業効率を向上できる。 (3) When the temperature of the secondary battery cell 11 reaches a predetermined temperature (60 ° C.) or higher, the duty is fixed at 50% to reduce the effective value of the motor current (the output current of the secondary battery cell 11). The temperature rise of the battery cell 11 is suppressed, the stop of the motor 51 due to the high temperature protection being activated when the temperature of the secondary battery cell 11 becomes 80 ° C. or higher, and the working efficiency can be improved.
(4) インバータ回路６５を構成するスイッチング素子の温度が所定温度（８０℃）以上になるとデューティを１００％に固定してスイッチングによるスイッチング素子の温度上昇が抑制され、スイッチング素子の温度が１００℃以上になって高温保護が作動することによるモータ５１の停止を抑制でき、作業効率を向上できる。 (4) When the temperature of the switching element constituting the inverter circuit 65 reaches a predetermined temperature (80 ° C.) or more, the duty is fixed at 100% to suppress the temperature rise of the switching element due to switching, and the temperature of the switching element is 100 ° C. or more Therefore, the stop of the motor 51 due to the high temperature protection being activated can be suppressed, and the working efficiency can be improved.
以上、実施の形態を例に本発明を説明したが、実施の形態の各構成要素や各処理プロセスには請求項に記載の範囲で種々の変形が可能であることは当業者に理解されるところである。以下、変形例について触れる。 Although the present invention has been described above by taking the embodiment as an example, it is understood by those skilled in the art that various modifications can be made to each component and each processing process of the embodiment within the scope of the claims. It is a place. The following describes the modification.
図１８は、他の実施の形態に関し、電動工具５０の異常及び電池パック１０の異常を共に電動工具５０のＬＥＤライト５８で表示する場合の、通常時と異常時のＬＥＤライト５８及び残容量表示手段１７の各々の点灯状態説明図である。電池パック１０の異常を電動工具５０のＬＥＤライト５８で報知する場合に、ＬＥＤライト５８の点滅態様を電動工具５０の異常時とは異ならせる（図１８の例では１秒の点灯と１秒の消灯の繰り返しとする）ことで、使用者は、電動工具５０及び電池パック１０のどちらに異常が発生したか迅速に判別できる。なお、電動工具５０に、電池パック１０の異常を報知するための報知部（ＬＥＤ等）をＬＥＤライト５８とは別に設けてもよい。 FIG. 18 relates to another embodiment, in the case where both the abnormality of the power tool 50 and the abnormality of the battery pack 10 are displayed by the LED light 58 of the power tool 50, the LED light 58 at the time of abnormality and the remaining capacity display FIG. 16 is an explanatory view of the lighting state of each of the means 17; When the abnormality of the battery pack 10 is notified by the LED light 58 of the electric power tool 50, the blinking mode of the LED light 58 is made different from that at the time of abnormality of the electric power tool 50 (in the example of FIG. By repeating the turn-off, the user can quickly determine which of the power tool 50 and the battery pack 10 has an abnormality. The power tool 50 may be provided with a notification unit (such as an LED) for reporting an abnormality of the battery pack 10 separately from the LED light 58.
図示は省略したが、表示パターン３として、電動工具５０と電池パック１０の異常を共に電池パック１０の残容量表示手段１７で表示してもよい。この場合、異常が発生すると電動工具５０のＬＥＤライト５８の点滅、電池パック１０の残容量表示手段１７の全ＬＥＤ点滅、又は電動工具５０のスイッチパネル６２で表示させ、電池パック１０の残容量表示スイッチ１９を押すと、点滅パターンや点滅数が変わることで、電動工具５０及び電池パック１０のいずれが異常となったかを判別できるようにしてもよい。なお、電池パック１０に、電動工具５０の異常を報知するための報知部（ＬＥＤ等）を残容量表示手段１７とは別に設けてもよい。 Although illustration is omitted, as the display pattern 3, both of the power tool 50 and the battery pack 10 may be displayed on the remaining capacity display means 17 of the battery pack 10. In this case, when an abnormality occurs, the LED light 58 of the power tool 50 blinks, all the LEDs of the remaining capacity display means 17 of the battery pack 10 blinks, or the switch panel 62 of the power tool 50 displays the remaining capacity display of the battery pack 10 When the switch 19 is pressed, it may be possible to determine which of the power tool 50 and the battery pack 10 has become abnormal by changing the blink pattern and the number of blinks. The battery pack 10 may be provided with a notification unit (such as an LED) for notifying of an abnormality of the power tool 50 separately from the remaining capacity display unit 17.
図示は省略したが、表示パターン４として、電動工具５０側の点灯状態表示ＬＥＤ６３で表示させることもできる。この場合、異常が発生すると電動工具５０のＬＥＤライト５８の点滅、電池パック１０の残容量表示手段１７の全ＬＥＤ点滅、又は電動工具５０のスイッチパネル６２で表示させ、電動工具５０のライト点灯スイッチ５９を押すことで、点灯状態表示ＬＥＤ６３の点滅パターンを変更することで、電動工具５０及び電池パック１０のいずれが異常となったかを判別できるようにしてもよい。 Although illustration is omitted, it can also be displayed as the display pattern 4 by the lighting state display LED 63 on the power tool 50 side. In this case, when an abnormality occurs, the LED light 58 of the power tool 50 blinks, all the LEDs of the remaining capacity display means 17 of the battery pack 10 blinks, or the switch panel 62 of the power tool 50 is displayed. By pressing 59, by changing the blinking pattern of the lighting state display LED 63, it may be possible to determine which of the power tool 50 and the battery pack 10 has become abnormal.
電池パック１０の残容量表示手段１７による異常報知は、残容量表示スイッチ１９が押されるか否かに関わらず行ってもよい（異常発生時に直ちに報知してもよい）。本発明の電気機器の機器本体は、携帯用切断機（携帯用丸鋸）に限定されず、ドライバドリル（図１９）やインパクトドライバ（図２０）等の他の電動工具や、ラジオやテレビ、ライト等の他の種類のものであってもよい。 The abnormality notification by the remaining capacity display means 17 of the battery pack 10 may be performed regardless of whether or not the remaining capacity display switch 19 is pressed (it may be notified immediately when an abnormality occurs). The device body of the electric device of the present invention is not limited to a portable cutting machine (portable circular saw), and other power tools such as a driver drill (FIG. 19) and an impact driver (FIG. 20), a radio and a television It may be of other types such as lights.
１０…電池パック、１１…二次電池セル、１２…セル電圧監視ＩＣ、１３…電源回路、１４…電流検出回路、１５…制御部（電池側制御部）、１６…電池電圧検出回路、１７…残容量表示手段、１８…セル温度検出手段、１９…残容量表示スイッチ、２０…スイッチパネル、２１…第１切替回路、２２…第２切替回路、２３…第３切替回路、３１…シリアル通信用受信回路、３２…温度情報送信回路、３５…識別情報送信回路、３６…シリアル通信用送信回路、５０…電動工具、５１…モータ、５２…トリガスイッチ、５３…スイッチ状態検出回路、５４…電流検出回路、５５…制御部（本体側制御部）、５６…電源回路、５７…電池電圧検出回路、５８…ＬＥＤライト、５９…ライト点灯スイッチ、６０…ハウジング、６１…グリップ部、６２…スイッチパネル、６３…点灯状態表示ＬＥＤ、６５…インバータ回路、６６…温度検出素子、６７…インバータ温度検出回路、７０…鋸刃、７１…ベース DESCRIPTION OF SYMBOLS 10 ... Battery pack 11, 11 ... Secondary battery cell, 12 ... Cell voltage monitoring IC, 13 ... Power supply circuit, 14 ... Current detection circuit, 15 ... Control part (battery side control part), 16 ... Battery voltage detection circuit, 17 ... Remaining capacity display means, 18: cell temperature detection means, 19: remaining capacity display switch, 20: switch panel, 21: first switching circuit, 22: second switching circuit, 23: third switching circuit, 31: for serial communication Reception circuit 32 Temperature information transmission circuit 35 Identification information transmission circuit 36 Transmission circuit for serial communication 50 Power tool 51 Motor 52 Trigger switch 53 Switch state detection circuit 54 Current detection Circuits 55: control unit (body side control unit) 56: power supply circuit 57: battery voltage detection circuit 58: LED light 59: light lighting switch 60: housing 61: grip portion 2 ... switch panel, 63 ... lighting state display LED, 65 ... inverter circuit, 66 ... temperature detecting element, 67 ... inverter temperature detecting circuit, 70 ... saw blade, 71 ... base

Claims (12)

  1. 電池パックと、前記電池パックに接続される機器本体と、を備える電気機器であって、
    前記機器本体は、前記機器本体内部の異常を報知する本体側報知部を有し、
    前記電池パックは、前記電池パック内部の異常を報知する電池側報知部を有する、電気機器。     An electric apparatus comprising: a battery pack; and an apparatus body connected to the battery pack,
    The device body has a body-side notification unit that reports an abnormality inside the device body,
    The electric device, wherein the battery pack has a battery side notification unit that notifies an abnormality in the battery pack.
  2. 前記本体側報知部は、作業箇所を照射する照明部である、請求項１に記載の電気機器。 The electric device according to claim 1, wherein the main body side notification unit is a lighting unit that irradiates a work location.
  3. 前記電池側報知部は、前記電池パックの残容量を表示する残容量表示部である、請求項１又は２に記載の電気機器。 The electric device according to claim 1, wherein the battery side notification unit is a remaining capacity display unit that displays a remaining capacity of the battery pack.
  4. 前記本体側報知部及び前記電池側報知部の少なくとも一方は、報知操作部に対して所定の操作が行われたときに異常有無を報知する、請求項１から３のいずれか一項に記載の電気機器。 The apparatus according to any one of claims 1 to 3, wherein at least one of the main body side informing unit and the battery side informing unit notifies abnormality when a predetermined operation is performed on the notification operation unit. Electrical equipment.
  5. 前記電池側報知部は、異常が検出されると自動的に報知する、請求項１から３のいずれか一項に記載の電気機器。 The electric device according to any one of claims 1 to 3, wherein the battery side notification unit automatically notifies when a failure is detected.
  6. 前記本体側報知部は、前記電池パック内部の異常は報知しない、請求項１から５のいずれか一項に記載の電気機器。 The electric device according to any one of claims 1 to 5, wherein the main body side notification unit does not notify an abnormality in the battery pack.
  7. 前記異常は、温度異常を含む、請求項１から６のいずれか一項に記載の電気機器。 The electric device according to any one of claims 1 to 6, wherein the abnormality includes a temperature abnormality.
  8. 前記異常は、電流異常を含み、
    前記本体側報知部及び前記電池側報知部の少なくとも一方は、温度異常と電流異常とで、異なる態様の報知を行う、請求項７に記載の電気機器。     The abnormality includes a current abnormality,
    The electric device according to claim 7, wherein at least one of the main body side notification unit and the battery side notification unit performs notification of different modes depending on temperature abnormality and current abnormality.
  9. 電池パックと、前記電池パックに接続される機器本体と、を備える電気機器であって、
    前記機器本体は、前記機器本体内部の異常を報知する本体異常報知部と、前記電池パック内部の異常を報知する電池異常報知部と、を別々に有する、電気機器。     An electric apparatus comprising: a battery pack; and an apparatus body connected to the battery pack,
    The apparatus body is an electric apparatus separately having a main body abnormality notifying unit for notifying an abnormality in the inside of the device body and a battery abnormality notifying unit for notifying an abnormality in the battery pack.
  10. 電池パックと、前記電池パックに接続される機器本体と、を備える電気機器であって、
    前記電池パックは、前記機器本体内部の異常を報知する本体異常報知部と、前記電池パック内部の異常を報知する電池異常報知部と、を別々に有する、電気機器。     An electric apparatus comprising: a battery pack; and an apparatus body connected to the battery pack,
    The battery pack is an electric device separately having a main body abnormality notifying unit for notifying an abnormality in the device body and a battery abnormality notifying unit for notifying an abnormality in the battery pack.
  11. 電池パックと、前記電池パックに接続される機器本体と、を備える電気機器であって、
    前記機器本体及び前記電池パックのいずれかは、異常報知部を有し、
    前記異常報知部は、前記機器本体内部の異常と、前記電池パック内部の異常とで、異なる態様の報知を行う、電気機器。     An electric apparatus comprising: a battery pack; and an apparatus body connected to the battery pack,
    One of the device body and the battery pack has an abnormality notification unit;
    The said abnormality alerting | reporting part is an electric equipment which alert | reports a different aspect with the abnormality inside the said apparatus main body, and the abnormality inside the said battery pack.
  12. 前記機器本体は、本体側制御部を有し、
    前記電池パックは、電池側制御部を有し、
    前記電池側制御部は、前記電池パック内部の異常が検出されると、前記本体側制御部に異常検出信号を送信し、
    前記本体側制御部は、前記異常検出信号を受信すると前記機器本体の動作を停止する、請求項１から１１のいずれか一項に記載の電気機器。     The device body has a body side control unit,
    The battery pack has a battery side control unit.
    The battery side control unit transmits an abnormality detection signal to the main body side control unit when an abnormality in the battery pack is detected.
    The electrical device according to any one of claims 1 to 11, wherein the main body side control unit stops the operation of the device main body when the abnormality detection signal is received.
PCT/JP2018/028259 2017-08-09 2018-07-27 Electric device WO2019031273A1 (en)

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