[go: up one dir, main page]

WO2019003741A1 - Outil électrique - Google Patents

Outil électrique Download PDF

Info

Publication number
WO2019003741A1
WO2019003741A1 PCT/JP2018/020164 JP2018020164W WO2019003741A1 WO 2019003741 A1 WO2019003741 A1 WO 2019003741A1 JP 2018020164 W JP2018020164 W JP 2018020164W WO 2019003741 A1 WO2019003741 A1 WO 2019003741A1
Authority
WO
WIPO (PCT)
Prior art keywords
power supply
battery pack
tool
motor
power
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2018/020164
Other languages
English (en)
Japanese (ja)
Inventor
祥和 河野
和隆 岩田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koki Holdings Co Ltd
Original Assignee
Koki Holdings Co Ltd
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 Koki Holdings Co Ltd filed Critical Koki Holdings Co Ltd
Priority to JP2019526700A priority Critical patent/JP6874840B2/ja
Publication of WO2019003741A1 publication Critical patent/WO2019003741A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Definitions

  • the present invention relates to an adapter device connected to an alternating current power supply and a power tool which can alternatively connect a battery pack.
  • Patent Document 1 discloses a power tool which can select a commercial power supply and a battery pack alternatively as a power supply.
  • a commercial power supply When using a commercial power supply, replace the battery pack with the adapter device (AC adapter pack) connected to the commercial power supply and attach it to the power tool.
  • the adapter device AC adapter pack
  • a power supply cord connected to a commercial power supply extends from a housing having substantially the same shape as the housing of the battery pack.
  • the present invention has been made in recognition of such a situation, and an object thereof is to provide a power tool capable of appropriate control depending on which of the adapter device and the battery pack is connected.
  • This power tool is Motor, A tool control unit that controls the motor; An adapter device connected to an AC power supply and a power supply connection portion capable of selectively connecting a battery pack; The tool control unit changes the control of the motor depending on which of the adapter device and the battery pack connected to the power supply connection unit is connected.
  • the tool control unit may change the brake control of the motor depending on which of the adapter device and the battery pack is connected to the power supply connection unit.
  • a switch for instructing start and stop of the motor When the adapter device is connected to the power supply connection unit, the tool control unit does not perform brake control after the switch is stopped and the battery pack is connected to the power supply connection unit.
  • the brake control may be performed after the switch is stopped.
  • a switch for instructing start and stop of the motor An inverter circuit for energizing the motor;
  • the tool control unit performs brake control due to a short circuit of a part of the switching element constituting the inverter circuit after the switch is stopped.
  • brake control may be performed by PWM control of a part of the switching elements constituting the inverter circuit after the switch is stopped.
  • the tool control unit may change start control of the motor depending on which of the adapter device and the battery pack is connected to the power supply connection unit.
  • a switch for instructing start and stop of the motor When the adapter device is connected to the power supply connection unit, the tool control unit is configured to operate until the motor reaches a predetermined number of rotations after the switch is started and operated than when the battery pack is connected. It is also possible to moderate the increase in rotational speed.
  • the tool control unit may change the condition of the abnormality determination based on which of the adapter device and the battery pack is connected to the power supply connection unit.
  • It has a current detection unit that detects the current flowing to the motor, When the adapter device is connected to the power supply connection portion, at least one of the current threshold and the time threshold of the overcurrent protection may be smaller than when the battery pack is connected.
  • the combination of the current threshold and the time threshold of the over current protection may be plural, and the time threshold may be smaller as the current threshold is larger.
  • the temperature threshold of the high temperature protection on the power supply side may be higher than when the battery pack is connected.
  • the tool control unit determines which of the adapter device and the battery pack is connected to the power supply connection portion by communication with the adapter device or the battery pack connected to the power supply connection portion, and changes the control of the motor You may
  • This power tool is Motor, A tool control unit that controls the motor; An adapter device connected to an AC power supply and a power supply connection portion capable of selectively connecting a battery pack;
  • the power supply connection unit is alternatively selected from a tool side abnormal signal terminal which is alternatively connected to an abnormal signal terminal for outputting an abnormal signal of the adapter device and the battery pack, and a communication terminal of the adapter device and the battery pack. And the tool side communication terminal connected in the same manner.
  • the communication terminal may include a temperature signal terminal
  • the tool side communication terminal may include a tool side temperature signal terminal.
  • the tool control unit may control the motor based on temperature information input via the temperature signal terminal and the tool-side temperature signal terminal.
  • an electric power tool capable of appropriate control depending on which of the adapter device and the battery pack is connected.
  • FIG. 2 is a rear perspective view of the power tool 1;
  • FIG. 2 is a perspective view of a battery pack 20 that can be attached to the power tool 1.
  • FIG. 2 is a perspective view of an AC / DC power adapter 30 mountable to the power tool 1;
  • FIG. 2 is a schematic block diagram of the power tool 1 and the battery pack 20.
  • FIG. 2 is a schematic block diagram of the power tool 1 and the AC / DC power adapter 30.
  • the table which shows an example of the content of the setting table regarding a soft start in grinder and circular saw or table-top circular saw.
  • the table which shows an example of the contents of the setting table about brake control in a grinder and circular saw or table-top circular saw.
  • the table in a grinder showing an example of the contents of the setting table about overcurrent protection.
  • surface which shows an example of the content of the setting table regarding overcurrent protection in circular saw or table-top circular saw.
  • the table showing an example of the contents of the setting table about overheating protection in electric tool 1. 4 is a control flowchart of the electric power tool 1;
  • FIG. 1 is a plan cross-sectional view of the power tool 1 according to the embodiment of the present invention in a state in which the battery pack 20 is mounted.
  • the front and rear direction and the left and right direction are defined by FIG.
  • FIG. 2 is a rear perspective view of the power tool 1.
  • the power tool 1 is a grinder in the illustrated example, but may be another type such as a circular saw, a tabletop circular saw, or the like.
  • the electric power tool 1 accommodates a motor (electric motor) 6 serving as a drive source inside the housing 2.
  • the motor 6 is an inner rotor type brushless motor here.
  • a power supply connection 2 a is provided at the rear of the housing 2.
  • the power supply connection portion 2a may be a terminal portion for electrical connection, and may include a rail portion for mechanical fixation, a latch engagement portion, and the like in addition to the terminal portion.
  • the battery pack 20 and the AC / DC power adapter 30 as an adapter device can be alternatively attached to the power supply connection portion 2a, and in FIGS. 1 and 2, the battery pack 20 is attached.
  • a switch 7 for instructing start and stop of the motor 6 is provided in front of the power supply connection portion 2 a and behind the motor 6.
  • the left portion of the housing 2 is provided with an operation portion 7a for the user to operate the switch 7 on and off.
  • a gear case 4 is provided at the front of the housing 2. The rotation of the motor 6 is transmitted to the grindstone (rotating tool) 9 by a decelerating mechanism (not shown) provided on the gear case 4.
  • FIG. 3 is a perspective view of the battery pack 20 attachable to the power tool 1.
  • FIG. 4 is a perspective view of the AC / DC power adapter 30 mountable to the power tool 1.
  • the AC / DC power adapter 30 extends from the housing 33 having substantially the same shape as the housing of the battery pack 20, and a power cord 34 connected to the commercial power source extends. Supply.
  • FIG. 5 is a schematic block diagram of the power tool 1 and the battery pack 20.
  • FIG. 6 is a schematic block diagram of the power tool 1 and the AC / DC power adapter 30.
  • the switching circuit 11 is an inverter circuit including switching elements such as six FETs or IGBTs connected in a three-phase bridge, for example, and performs switching operation according to the control of the control circuit 10 to supply a driving current to the motor 6.
  • the control circuit 10 as a tool control unit includes a microcontroller (microcomputer) or the like, and when the switch 7 is turned on, it starts switching control of the switching circuit 11 and drives the motor 6.
  • the control circuit 10 detects the current flowing through the motor 6 based on the voltage across the shunt resistor R1 as a current detection unit.
  • the control circuit 10 detects an input voltage from the power supply (battery pack 20 or AC / DC power adapter 30) connected to the power tool 1 based on the voltage between the positive terminal and the negative terminal of the power supply connection unit 2a.
  • the control circuit 10 detects the temperature of the switching circuit 11 based on the voltage of the thermistor R2 as a temperature detection element disposed in the vicinity of the switching circuit 11.
  • the control circuit 10 receives a temperature signal and a motor stop signal from the power source (battery pack 20 or AC / DC power adapter 30) connected to the power tool 1 through the power source connection 2a, and communicates with the power source. Do.
  • the battery pack 20 includes a plurality of battery cells (secondary battery cells) 21, a battery protection IC 22, and a microcomputer (battery control unit) 23 as a power control unit.
  • the voltage at both ends of the battery cell 21 is output to the plus terminal and the minus terminal.
  • the battery protection IC 22 monitors the voltage of each battery cell 21 and also monitors the output current from the plurality of battery cells 21 by the voltage across the shunt resistor R3. Further, the battery protection IC 22 detects the temperature of the battery cell 21 based on the voltage of the thermistor R 4 as a temperature detection element disposed in the vicinity of the battery cell 21.
  • the battery protection IC 22 transmits the temperature of the battery cell 21 to the control circuit 10 of the power tool 1.
  • the battery protection IC 22 is in the overdischarge state where the voltage of at least one battery cell 21 has fallen below the threshold, and in the overcurrent state where the main current from the plurality of battery cells 21 has become greater than the threshold And transmits a motor stop signal to the control circuit 10 of the power tool 1.
  • the microcomputer 23 communicates with the power tool 1.
  • the AC / DC power supply adapter 30 includes an AC / DC converter 31 and a microcomputer (adapter control unit) 32 as a power supply control unit.
  • the AC / DC converter 31 converts alternating current input from the alternating current power source 40 into direct current, and outputs the direct current to the plus terminal and the minus terminal.
  • the voltage of the thermistor R5 as a temperature detection element disposed in the vicinity of the AC / DC converter 31 is transmitted to the control circuit 10 of the power tool 1 as a temperature signal.
  • the microcomputer 32 transmits a motor stop signal to the control circuit 10 of the power tool 1 at the time of abnormality.
  • the microcomputer 32 communicates with the control circuit 10 of the power tool 1.
  • FIG. 7 is a table showing an example of the contents of the setting table regarding soft start in the grinder and the circular saw or table-top saw.
  • the setting table of FIG. 7 is stored in a memory (storage means) (not shown) of the control circuit 10 of the power tool 1.
  • the same applies to the setting tables of FIGS. 8 to 12. 7 and 8 show setting values when the electric power tool 1 is a grinder and when it is a circular saw or a desktop circular saw, the control circuit 10 sets both of them. It is not necessary to store the value, and it is sufficient to store only the setting value corresponding to the type of the power tool 1 on which the device is mounted. As shown in FIG.
  • the voltage supply source (power supply connected to the power connection portion 2 a) is an AC / DC power adapter
  • the rotational speed increase speed until the motor 6 reaches a predetermined rotational speed after the switch 7 is turned on (starting operation) is smaller than in the case of the battery pack 20.
  • Such a setting value is set because the AC / DC power supply adapter 30 has a current supply capability lower than that of the battery pack 20, so the rotational speed increase speed in the start control of the motor 6 is large as in the case of the battery pack 20. Then, it is because it becomes an overcurrent.
  • FIG. 8 is a table showing an example of contents of a setting table regarding brake control in the grinder and the circular saw or table-top circular saw.
  • the power tool 1 is a grinder
  • the voltage supply source is the AC / DC power adapter 30
  • the brake control after the switch 7 is turned off (stop operation) is PWM control of part of the switching elements constituting the switching circuit 11 (hereinafter referred to as "PWM brake control And is a control that raises the duty of PWM control at 50% / sec.
  • Such a setting value is used in the case of the battery pack 20 while the battery cell 21 can absorb the surge voltage (regenerative energy) generated by the brake by the PWM control, but in the case of the AC / DC power supply adapter 30, the PWM This is because the surge voltage generated by the brake by control can not be absorbed, and there is a risk that the switching element constituting the switching circuit 11 may be damaged due to an overvoltage.
  • the brake control after the switch 7 is turned off is the AC / DC power adapter 30 even if the voltage supply source is the battery pack 20. Even in this case, short circuit control of part of the switching elements constituting the switching circuit 11 (hereinafter also referred to as “short circuit brake control”) is performed.
  • FIG. 9 is a table showing an example of the contents of the setting table for overcurrent protection in the grinder.
  • FIG. 10 is a table showing an example of the contents of a setting table for overcurrent protection in a circular saw or a desktop circular saw.
  • there are a plurality of combinations (four in the illustrated example, conditions 1 to 4) in the current threshold and the time threshold of the overcurrent protection, and the larger the current threshold, the smaller the time threshold.
  • FIG. 9 is a table showing an example of the contents of the setting table for overcurrent protection in the grinder.
  • FIG. 10 is a table showing an example of the contents of a setting table for overcurrent protection in a circular saw or a desktop circular saw.
  • the current threshold value in the case where the voltage supply source is the battery pack 20 and the case where the AC / DC power adapter 30 is in any of the conditions 1 to 4 Are the same, but the time threshold is smaller when the voltage source is the AC / DC power adapter 30 than when it is the battery pack 20.
  • the voltage supply source is the battery pack 20 and the AC / DC power adapter 30 under any of the conditions 1 to 4. While the time threshold is the same, while the current threshold is smaller when the voltage source is the AC / DC power adapter 30 than when it is the battery pack 20.
  • the AC / DC power supply adapter 30 has a current supply capability lower than that of the battery pack 20, it is better when the voltage supply source is the AC / DC power supply adapter 30.
  • the overcurrent protection is applied with a smaller current threshold or smaller time threshold than the battery pack 20.
  • FIG. 11 is a table showing an example of the content of the setting table for voltage protection in the electric power tool 1.
  • the control circuit 10 of the power tool 1 detects an input voltage from a power source (battery pack 20 or AC / DC power adapter 30) connected to the power tool 1.
  • a power source battery pack 20 or AC / DC power adapter 30
  • the voltage of the battery pack 20 (between the positive terminal and the negative terminal of the power supply connection portion 2a)
  • the control circuit 10 determines that the battery pack 20 is overdischarged, and stops the motor 6.
  • the control circuit 10 determines that the AC / DC power adapter 30 is abnormal and stops the motor 6.
  • the current of the motor 6 increases, the voltage drop due to the internal resistance of the battery cell 21 or the AC / DC converter 31 increases, and the decrease in the input voltage from the power supply connection portion 2a increases. For this reason, in addition to the overcurrent protection shown in FIGS. 9 and 10, the motor 6 is stopped also when the input voltage falls below the threshold.
  • FIG. 11 shows the threshold of the input voltage, and the value when the voltage supply source is the AC / DC converter 31 is smaller than that when the battery pack 20 is. This takes into account that the AC / DC power adapter 30 has a lower current supply capability than the battery pack 20, as does the threshold value of the over current protection.
  • FIG. 12 is a table showing an example of the content of the setting table related to overheat protection in the electric power tool 1.
  • the table shown in FIG. 12 shows the threshold for activating the overheat protection (high temperature protection), and the threshold on the power supply side is higher in the case where the voltage supply source is the AC / DC power adapter 30 than in the case of the battery pack 20. It is a large value. This is because the AC / DC converter 31 is stronger at high temperature than the battery cell 21.
  • the threshold on the tool side is the same regardless of the voltage supply source.
  • FIG. 13 is a control flowchart of the power tool 1.
  • the control circuit 10 communicates with the voltage supply source connected to the power supply connection unit 2a (S1), and determines whether the voltage supply source is the battery pack 20 or the AC / DC power adapter 30 (S2). If the voltage supply source is the battery pack 20 (YES in S2), the control circuit 10 selects a condition when the battery pack 20 is connected from various setting tables shown in FIGS. 7 to 12 (S3). If the voltage supply source is the AC / DC power adapter 30 (NO in S2), the control circuit 10 selects the conditions when the AC / DC power adapter 30 is connected from various setting tables shown in FIGS. 7 to 12. (S4).
  • the control circuit 10 soft-starts the motor 6 at the rotational speed increasing speed set according to the selected condition (S5).
  • the control circuit 10 detects the current value of the motor 6 (S6), and determines whether the current value and the duration time satisfy the overcurrent determination condition (S7). If the overcurrent determination condition is not satisfied (NO in S7), the control circuit 10 detects the input voltage from the voltage supply source (S8) and determines whether the voltage value satisfies the overdischarge determination condition (S10). S9). If the overdischarge determination condition is not satisfied (NO in S9), the control circuit 10 confirms whether or not the motor stop signal is received from the voltage supply source (S10), and the control circuit 10 receives the motor stop signal.
  • the control circuit 10 determines whether the temperature of each part (battery cell 21 or AC / DC converter 31, and switching circuit 11) satisfies the overheat protection determination condition (S11). If the overheat protection determination condition is not satisfied (NO in S11) and the switch 7 is not turned off (NO in S12), the control circuit 10 continues driving the motor 6 while confirming the presence or absence of abnormality (S6 to S11) . When the overcurrent determination condition is satisfied (YES in S7), the control circuit 10 receives the motor stop signal from the voltage supply source (YES in S9), when the overdischarge determination condition is satisfied (YES in S9).
  • stop control of the motor 6 is performed (S13), and the motor 6 is stopped (S14) .
  • the stop control of the motor 6 is PWM brake control if the voltage supply source is the battery pack 20, and natural deceleration if the voltage supply source is the AC / DC power supply adapter 30.
  • the control circuit 10 changes the brake control of the motor 6 depending on which of the AC / DC power adapter 30 and the battery pack 20 is connected to the power supply connection unit 2a.
  • appropriate brake control can be performed in accordance with the voltage supply source connected to the power supply connection unit 2a.
  • the control circuit 10 does not perform the brake control after the switch 7 is turned off, and hence the control circuit 10 does not perform the brake control. It is possible to reduce the risk that the switching element of the switching circuit 11 is damaged.
  • the control circuit 10 performs PWM brake control after the switch 7 is turned off. You can stop quickly.
  • changing the brake control is a concept including changing the presence or absence of the brake control.
  • the control circuit 10 is connected to the power supply connection unit 2a in order to change the start control of the motor 6 depending on which of the AC / DC power adapter 30 and the battery pack 20 is connected to the power supply connection unit 2a.
  • Appropriate start control can be performed according to the voltage supply source.
  • the control circuit 10 turns on the switch 7 after the switch 7 is turned on than when the battery pack 20 is connected. Since the rotation speed increase until the rotation speed reaches a predetermined rotation speed is slowed, the risk of the AC / DC power supply adapter 30 having a current supply capability lower than that of the battery pack 20 becoming an overcurrent can be suppressed.
  • the control circuit 10 is connected to the power supply connection unit 2a in order to change the condition (threshold) of the abnormality determination depending on which of the AC / DC power adapter 30 and the battery pack 20 is connected to the power supply connection unit 2a. It is possible to perform appropriate control (abnormality determination) according to the selected power supply. Specifically, when the AC / DC power adapter 30 is connected to the power supply connection unit 2a, the control circuit 10 controls the current threshold and the time threshold of the overcurrent protection more than when the battery pack 20 is connected. In order to reduce at least one of the above, it is possible to perform appropriate overcurrent protection according to the current supply capability of the battery pack 20 and the AC / DC power adapter 30.
  • the control circuit 10 when the AC / DC power adapter 30 is connected to the power supply connection unit 2a, the control circuit 10 has a temperature threshold for overheat protection (high temperature protection) on the power supply side than when the battery pack 20 is connected. Therefore, appropriate overheat protection can be performed according to the allowable temperature of the battery pack 20 and the AC / DC power adapter 30. Further, when the AC / DC power adapter 30 is connected to the power connection portion 2a, the control circuit 10 reduces the voltage threshold of the overdischarge protection as compared to the case where the battery pack 20 is connected. Appropriate over-discharge protection is possible according to the current supply capacity of the pack 20 and the AC / DC power adapter 30.
  • the control circuit 10 determines which of the AC / DC power adapter 30 and the battery pack 20 is connected to the power supply connection unit 2a by communication with the voltage supply source connected to the power supply connection unit 2a. Thus, appropriate control can be performed according to the voltage supply source connected to the power supply connection unit 2a.
  • the voltage supply source can be determined based on the availability of communication.
  • the control circuit 10 controls the brake of the motor 6 depending on which of the AC / DC power adapter 30 and the battery pack 20 is connected to the power connection 2a. Control may be changed.
  • the AC / DC power adapter 30 is connected to the power supply connection unit 2a, short circuit brake control may be performed, and when the battery pack 20 is connected, PWM brake control may be performed.
  • the short circuit brake control since there is no problem of the surge voltage, it can be used also when the AC / DC power supply adapter 30 is used as a power supply.
  • the determination of the voltage supply source by the control circuit 10 is not limited to communication, and identification resistors provided in the AC / DC power supply adapter 30 and the battery pack 20 may be used. In this case, neither the AC / DC power adapter 30 nor the battery pack 20 may have a communication function. 7 to 12 may be reversed or the same between the battery pack 20 and the AC / DC power adapter 30 in accordance with the specifications of the parts constituting the AC / DC converter 31.
  • the power tool of the present invention is not limited to the grinder, the circular saw, and the bench round saw exemplified in the embodiment, and may be of other types.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Protection Of Static Devices (AREA)
  • Control Of Electric Motors In General (AREA)
  • Stopping Of Electric Motors (AREA)

Abstract

L'invention concerne un outil électrique pouvant être commandé de manière appropriée en fonction duquel un parmi un dispositif adaptateur et un bloc-batterie est connecté. Cet outil électrique (1) est pourvu d'un moteur (6), d'un circuit de commande (10) pour commander le moteur (6), et d'une partie de connexion de source d'alimentation (2a) qui permet la connexion sélective d'un bloc-batterie (20) ou d'un dispositif adaptateur connecté à une source d'alimentation CA. Le circuit de commande (10) n'effectue pas de commande de freinage après qu'un commutateur (7) a été actionné pour arrêter l'outil électrique lorsque le dispositif adaptateur est connecté à la partie de connexion de source d'alimentation (2a), et effectue la commande de freinage après que le commutateur (7) a été actionné pour arrêter l'outil électrique lorsque le bloc-batterie (20) est connecté à la partie de connexion de source d'alimentation (2a).
PCT/JP2018/020164 2017-06-30 2018-05-25 Outil électrique Ceased WO2019003741A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2019526700A JP6874840B2 (ja) 2017-06-30 2018-05-25 電動工具

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-129737 2017-06-30
JP2017129737 2017-06-30

Publications (1)

Publication Number Publication Date
WO2019003741A1 true WO2019003741A1 (fr) 2019-01-03

Family

ID=64740548

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/020164 Ceased WO2019003741A1 (fr) 2017-06-30 2018-05-25 Outil électrique

Country Status (2)

Country Link
JP (1) JP6874840B2 (fr)
WO (1) WO2019003741A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112087006A (zh) * 2019-06-12 2020-12-15 苏州宝时得电动工具有限公司 一种电池包、充电系统及放电系统
JPWO2022114120A1 (fr) * 2020-11-30 2022-06-02

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001245462A (ja) * 1999-07-02 2001-09-07 Matsushita Electric Works Ltd 可搬式モーター動力装置とこれを備えた電動工具
WO2011118475A1 (fr) * 2010-03-26 2011-09-29 パナソニック電工パワーツール株式会社 Outil électrique
WO2015179318A1 (fr) * 2014-05-18 2015-11-26 Black & Decker Inc. Système d'outil électrique
WO2016098565A1 (fr) * 2014-12-18 2016-06-23 日立工機株式会社 Outil électrique
WO2016194535A1 (fr) * 2015-05-29 2016-12-08 日立工機株式会社 Outil électrique
WO2017014008A1 (fr) * 2015-07-18 2017-01-26 日立工機株式会社 Outil de travail

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001245462A (ja) * 1999-07-02 2001-09-07 Matsushita Electric Works Ltd 可搬式モーター動力装置とこれを備えた電動工具
WO2011118475A1 (fr) * 2010-03-26 2011-09-29 パナソニック電工パワーツール株式会社 Outil électrique
WO2015179318A1 (fr) * 2014-05-18 2015-11-26 Black & Decker Inc. Système d'outil électrique
WO2016098565A1 (fr) * 2014-12-18 2016-06-23 日立工機株式会社 Outil électrique
WO2016194535A1 (fr) * 2015-05-29 2016-12-08 日立工機株式会社 Outil électrique
WO2017014008A1 (fr) * 2015-07-18 2017-01-26 日立工機株式会社 Outil de travail

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112087006A (zh) * 2019-06-12 2020-12-15 苏州宝时得电动工具有限公司 一种电池包、充电系统及放电系统
JPWO2022114120A1 (fr) * 2020-11-30 2022-06-02
JP7559834B2 (ja) 2020-11-30 2024-10-02 工機ホールディングス株式会社 電気機器、及び、電気機器の書き込み又は読み込み装置

Also Published As

Publication number Publication date
JP6874840B2 (ja) 2021-05-19
JPWO2019003741A1 (ja) 2020-04-16

Similar Documents

Publication Publication Date Title
CN111133662B (zh) 高功率电池供电系统
EP3299127B1 (fr) Schéma de commande de fonctionnement d'outil électrique sans fil sur la base de la température de la batterie
JP5962983B2 (ja) 電動工具
JP6512306B2 (ja) 電動工具
JP6753472B2 (ja) 電動工具
JP2011130551A (ja) 電源装置及びこれを備える車両
US10307841B2 (en) Power tool
WO2010022765A1 (fr) Module d’excitation
CN114846709A (zh) 具有供能装置的电加工器具
WO2019003741A1 (fr) Outil électrique
CN103522262A (zh) 用电池运行的手持式设备的控制
WO2022172776A1 (fr) Adaptateur et appareil électrique
JP2019033649A (ja) 電動工具
JP2016021801A (ja) 無停電電源装置
JP2015082931A (ja) 充電アダプタ及びそれを備えた電源システム
US7034477B2 (en) Domestic electrical appliance including an electric motor
JP2018057178A (ja) 電気機器
JP2008183689A (ja) 電動工具
JP5981321B2 (ja) 電動工具
JPWO2018155073A1 (ja) 電動工具
CN114362342A (zh) 电动工具系统及其电池包
EP4067005B1 (fr) Circuit séparé de déconnexion du bloc-batterie
JP4852863B2 (ja) 電動車両および電動車両の保護制御方法
JP2015027711A (ja) 電動工具
JP2025005099A (ja) 電動作業機用バッテリパック、及び電動作業機用バッテリパックにおける放電電流を抑制する方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18824518

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2019526700

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18824518

Country of ref document: EP

Kind code of ref document: A1