WO2013027599A1 - Appareil d'alimentation électrique - Google Patents

Appareil d'alimentation électrique Download PDF

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Publication number
WO2013027599A1
WO2013027599A1 PCT/JP2012/070358 JP2012070358W WO2013027599A1 WO 2013027599 A1 WO2013027599 A1 WO 2013027599A1 JP 2012070358 W JP2012070358 W JP 2012070358W WO 2013027599 A1 WO2013027599 A1 WO 2013027599A1
Authority
WO
WIPO (PCT)
Prior art keywords
power supply
supply device
remaining amount
control board
batteries
Prior art date
Application number
PCT/JP2012/070358
Other languages
English (en)
Japanese (ja)
Inventor
拓郎 小西
正規 古澤
Original Assignee
株式会社マキタ
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
Priority claimed from JP2011183551A external-priority patent/JP2013046512A/ja
Priority claimed from JP2011183552A external-priority patent/JP5851156B2/ja
Application filed by 株式会社マキタ filed Critical 株式会社マキタ
Priority to CN201290000772.XU priority Critical patent/CN204045695U/zh
Priority to DE212012000160.3U priority patent/DE212012000160U1/de
Publication of WO2013027599A1 publication Critical patent/WO2013027599A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0044—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction specially adapted for holding portable devices containing batteries
    • 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
    • H01M50/284—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/005—Detection of state of health [SOH]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • 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
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a power supply apparatus that can be used as a power supply for various electric devices.
  • a lithium-ion battery (DC power supply) that can be repeatedly used by charging in addition to a 100 V AC power supply.
  • DC power supply lithium-ion battery
  • Rechargeable electric tools that use a power source are becoming popular. Since the latter rechargeable electric tool does not require a long power cord to be connected to a power outlet unlike the former AC power supply type, it can obtain high workability or usability particularly outdoors. Also, if a plurality of batteries are prepared, one can be charged with a separately prepared charger while one is attached to the tool body and used as a power source. Work can be made more efficient by realizing continuous use.
  • Japanese Unexamined Patent Application Publication No. 2011-97766 discloses a technique related to this power supply device. According to this power supply apparatus, it is possible to realize both long-time output and high output of power by coexisting parallel connection and series connection for a plurality of batteries, and appropriately control the remaining amount of each battery. As a result, the output can be made more efficient.
  • the conventional power supply device includes a control board for controlling the power of each attached battery to be consumed efficiently. It is necessary to ensure that the control board is sufficiently cooled.
  • a power supply device controls an output unit that can attach a plurality of batteries, an output device that outputs the total power of the batteries attached to the attachment unit, and an output of the battery power
  • a control board controls an output unit that can attach a plurality of batteries, an output device that outputs the total power of the batteries attached to the attachment unit, and an output of the battery power
  • a control board controls a cooling device for cooling the control board, and a main body case in which the control board and the cooling device are housed.
  • the operation control is efficiently performed by the control board so that, for example, the remaining amounts of the plurality of attached batteries do not vary. For this reason, the amount of heat generated by the control board, particularly FETs, increases. Since the control board serving as a large heat generation source is reliably and sufficiently cooled by the dedicated cooling device, it is possible to prevent malfunction of the power supply device and improve its durability.
  • FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 3 and a remaining amount display section.
  • FIG. 5 is a cross-sectional view of the main body of the power supply device, taken along line VV in FIG. 3. It is a whole perspective view of the rechargeable electric plane as an example of an electric tool.
  • the power supply device 1 includes a main body 10 to which four batteries 11, 12, 13, and 14 can be attached on the front side, and a front side of the main body 10. And a lid 2 that can cover the attached battery. Since the four batteries are mounted in a line in the vertical direction on the front, the power supply device 1 has an elongated shape having a longitudinal length in the vertical direction.
  • the lid 2 is supported by the upper part of the main body 10 via the hinge part 3 so as to be rotatable up and down.
  • the lid 2 can be opened by rotating upward about the hinge portion 3 and can be closed by rotating downward.
  • the lock lever 4 provided at the lower part of the lid 2 is hooked on the hooking claw 5 provided at the lower part of the main body 10, the lid 2 is locked in the closed position.
  • the lock lever 4 is biased to the lock side by a compression spring 6.
  • the power supply device 1 can be installed in such a manner that the four legs 7 are grounded and stand upright in a vertical direction (longitudinal posture).
  • a carrying handle 8 for carrying the power supply device 1 is provided on the upper portion of the main body 10.
  • the carrying handle 8 is provided so as to be rotatable up and down around the hinge portion 3.
  • the carrying handle 8 can be stood up and gripped by the user, and can be stored in a downward position.
  • FIG. 2 shows a state in which the carrying handle 8 is laid down and stored
  • FIG. 3 shows a state in which the carrying handle 8 is raised upward.
  • the legs 9 for horizontal installation are provided at the four corners of the back of the main body 10.
  • the power supply device 1 can also be installed in a horizontal posture with the legs 9 grounded.
  • FIG. 3 shows the power supply device 1 with the lid 2 opened or removed. For this reason, the front of the main body 10 is visible in FIG.
  • the main body 10 includes a box-shaped main body case 15 that has a back surface, a bottom surface, and the like and has an opening on the front surface side, and a pedestal portion 16 that is screwed to the main body case 15 according to the opening and forms the front surface. I have.
  • the four battery attachment portions 21 to 24 are attached to the pedestal portion 16.
  • FIG. 3 shows a state in which four batteries 11, 12, 13, and 14 of the slide mounting type are mounted on the four battery mounting portions 21 to 24.
  • the four batteries attached in parallel in the vertical direction are referred to as a first battery 11, a second battery 12, a third battery 13, and a fourth battery 14 in order from the upper side.
  • the battery to be attached is used as a power source for a rechargeable electric tool 50 such as an electric plane shown in FIG. 6, and is a lithium ion battery with an output voltage of 18 V in this embodiment.
  • the battery 11 has a plurality of cells 11b (lithium ion batteries, secondary batteries) housed in a battery case 11a, and can be repeatedly used by charging with a separate charger. As the battery itself, a known battery can be used.
  • a lock claw 11c is provided for locking to a state where the battery 11 is attached to a battery attachment part 51 provided at the rear part of the tool body.
  • the battery attachment portions 21 to 24 all have the same slide attachment structure as the battery attachment portion 51 of the electric power tool 50.
  • Each of the battery mounting portions 21 to 24 is provided with a pair of upper and lower slide rails 21a to 24a.
  • Connector connecting portions 21b to 24b are disposed between the paired slide rails 21a to 24a.
  • the battery can be attached to each of the battery attachment portions 21 to 24 by sliding the slide rails 21a to 24a laterally from left to right.
  • each battery can be removed from the battery mounting portions 21 to 24 by sliding from right to left in the lateral direction.
  • the batteries are electrically connected via the connector connection portions 21b to 24b.
  • Each of the four batteries can be individually attached and removed.
  • the four batteries 11, 12, 13, and 14 have mounting compatibility with respect to all the battery mounting portions 21 to 24.
  • the batteries 11, 12, 13, and 14 are attached to all four battery attachment parts, the two pieces are electrically connected in parallel to achieve long-time output, and the two sets connected in parallel are connected in series to each other.
  • an output voltage of 36V is realized.
  • control is performed so that at least series connection is established even when a battery is attached to any one of at least two battery attachment portions (for example, the first and second battery attachment portions 21 and 22).
  • electric power of voltage 36V is surely output.
  • the power supply device 1 includes a remaining amount notification function (remaining amount notification device) for notifying the remaining amount of the attached battery.
  • This remaining amount notification function includes an individual remaining amount display unit 30 that notifies the individual remaining amount Ze of each of the attached batteries 11, 12, 13, and 14, and a total remaining amount that notifies the total remaining amount Zt of those batteries. This is realized by the quantity display unit 31.
  • each individual remaining amount display unit 30 includes two indicator lamps 30 a attached to the pedestal unit 16.
  • the two indicator lamps 30a are lit or blinking as follows, the individual remaining amounts Ze of the corresponding batteries 11, 12, 13, and 14 are individually notified.
  • both of the two indicator lamps 30a are lit in green, thereby notifying that the individual remaining amount Ze of the battery is sufficient (fully charged state).
  • both lights in red it is notified that the individual remaining amount Ze is low.
  • both indicator lamps 30a blink red, thereby informing that the battery is in an error state with respect to temperature and current value.
  • the latter total remaining amount display part 31 is provided on the top surface of a cylindrical support column 32 having an oval cross section provided in the pedestal part 16 constituting the front surface of the main body 10.
  • the support column 32 is provided between the second battery 12 and the third battery 13 at the approximate center in the vertical and horizontal directions of the pedestal 16.
  • the total remaining amount display unit 31 includes five indicator lamps 35 and one operation switch 36 as shown in the figure. As the total remaining amount Zt of the four batteries 11, 12, 13, and 14 increases, the number of indicator lamps 35 that are lit red increases. When all the five indicator lamps 35 are lit red, it is notified that the total remaining amount Zt of the batteries 11, 12, 13, and 14 is sufficient.
  • the individual remaining amount Ze of any battery may be insufficient.
  • the individual remaining amount display unit 30 it is possible to reliably identify a battery that needs to be charged (that is, a battery in which one or both of the corresponding indicator lamps 30a are lit in red).
  • the indicator lamp 35 it is possible to confirm whether or not the indicator lamp 35 that notifies the total remaining amount is lit only when the operation switch 36 is pressed. Even if the total remaining amount Zt is insufficient, the indicator lamp 35 is not lit unless the operation switch 36 is pressed. If some or all of the indicator lamps 35 are not lit even when the operation switch 36 is pressed, the user knows that the total remaining amount Zt of the four batteries 11, 12, 13, 14 is insufficient. It will be. If all the indicator lamps 35 are turned on when the operation switch 36 is pressed, the user knows that the total remaining amount Zt of the four batteries 11, 12, 13, and 14 is sufficient. Thus, the power consumption can be saved because the indicator lamp 35 is lit by pushing the operation switch 36 only when necessary.
  • the total remaining amount display unit 31 can be visually confirmed from the outside even when the lid 2 is closed.
  • an oval window 2 a that is similar to the oval shape of the support column 32 of the total remaining amount display unit 31 is provided.
  • the lid 2 is closed with respect to the main body 10
  • the top of the support pillar 32 enters into the window 2a and is closed.
  • the total remaining amount display unit 31 can be visually confirmed from the outside with the lid 2 closed.
  • a control board 40 is disposed in the main body case 15.
  • the control board 40 includes a control circuit for electrically controlling the remaining amount notification function and a power supply circuit (constituting a part of the output device) for outputting electric power of the DC voltage 36V.
  • the control board 40 is screwed along the back surface of the pedestal portion 16 via the board frame 45 in a state where the whole (both sides) is molded with the resin layer 40a.
  • a cooling device 60 for cooling mainly the FET (field effect transistor) of the control substrate 40 is mainly provided in the main body case 15.
  • the cooling device 60 includes an aluminum heat dissipating member 61 and a cooling fan 62 attached to the back surface of the control board 40.
  • the heat dissipating material 61 is joined to the back surface of the control board 40 via two upper and lower mounting members 63.
  • the heat radiating member 61 includes a plurality of heat radiating fins 61 a having a rectangular flat plate shape.
  • the heat radiating fins 61a extend in parallel with each other over the entire length of the control board 40 (the longitudinal direction of the main body 10, ie, the vertical direction in FIG. 2). As shown in FIGS.
  • the heat dissipating member 61 forms a plurality of vertical air passages 64 between two adjacent heat dissipating fins 61 a.
  • Each ventilation path 64 is provided in a range extending over the entire length of the control board 40 in the longitudinal direction.
  • the back surface of the main body case 15 is provided with an intake hole 15a.
  • the intake hole 15 a is located at the upper end portion of the heat radiating member 61 and in the vicinity of the upper portion of the ventilation path 64.
  • a circular fan frame portion 63a is integrally provided on the lower mounting member 63 that supports the heat radiating member 61, and the cooling fan 62 is attached to the main body case 15 via the fan frame portion 63a. It has been.
  • Exhaust holes 15 b to 15 b are provided below the cooling fan 62 and on the bottom surface of the main body case 15.
  • the cooling fan is not attached to the upper fan frame portion 63a, in this embodiment, the upper attachment member 63 that supports the heat dissipating material 61 and the lower attachment member 63 provided with the fan frame portion 63a are also provided. Similar members are used. Thereby, the upper and lower attachment members 63 are made common.
  • a main switch 42 of the power supply device 1 is provided on the right surface of the main body case 15.
  • the cooling fan 62 rotates and the power can be output through the power cord 41.
  • the main switch 42 is turned off, the power supply circuit is cut off and the output of power is stopped, thereby suppressing wasteful standby power consumption.
  • a power supply cord 41 for power supply is drawn out from the lower part of the right side of the main body case 15, and 36 V DC power can be supplied to the external device through the power supply cord 41.
  • the drawing position of the power cord 41 can be changed by the user to the left surface of the main body case 15. Usability of the power supply device 1 can be improved by selecting any one of the drawing positions to facilitate the handling of the power cord 41.
  • a backpack belt (backpack belt 43) can be attached to the back surface of the main body case 15.
  • the user can carry the power supply device 1 with both hands open by attaching the shoulder belt 43 and carrying the power supply device 1 on the back.
  • operativity can be improved compared with the case where it carries using the carrying handle 8.
  • FIG. Moreover, the space for work can be expanded compared with the case where the power supply device 1 is installed and used in a work place.
  • the back belt 43 is attached along the back surface of the main body case 15 and includes a back plate 43a that comes into contact with the back of the user when carrying the back.
  • the back belt 43 is attached to the power supply device 1.
  • the back plate 43a has horizontal legs 9 in contact with the four corners thereof, and is fixed to the legs 9 with mounting screws 43b. For this reason, the back plate 43a is attached along this back surface with a gap 43c having a width corresponding to the height of the leg 9 between the back surface of the main body case 15.
  • This back plate 43a allows the user to carry the power supply device 1 with a gap 43c between the back and the back surface of the main body case 15. Thereby, the power supply device 1 can be carried on the back so that the back does not directly contact the back surface of the main body 10 and does not block the intake hole 15a on the back surface. For this reason, it can carry on the back without inhibiting the cooling efficiency of the cooling device 60. Further, since the outside air is always introduced into the intake hole 15a through the gap 43c during the operation of the cooling fan, the heat generated from the power supply device 1 is hardly transmitted directly to the user's back when carrying the back fan. Therefore, it does not make the user feel uncomfortable, thereby improving the usability of the power supply device 1 and the workability of the work using the power supply device 1.
  • a relatively large vent 43d is formed in the upper portion of the back plate 43a.
  • the vent hole 43 d is located behind the intake hole 15 a on the back surface of the main body case 15.
  • a flow of cooling air indicated by an arrow W is generated in the ventilation path 64 in the main body case 15, whereby the outside air is efficiently taken into the intake hole 15 a through the gap 43 c or the vent hole 43 d.
  • the back plate 43a is applied to the back.
  • a flow of outside air is generated through the back plate 43a and a slight gap between the back and the vent holes 43d. , Can improve the ventilation of the back and suppress sweating.
  • the power supply device 1 of the present embodiment includes the battery attachment portions 21, 22, 23, and 24 to which the four batteries 11, 12, 13, and 14 used as the power source of the electric tool can be attached. And an output device for outputting the total electric power of the battery attached to the attachment portion. Since the batteries are connected in parallel, power can be output for a long time. For this reason, it is possible to work efficiently even in a working environment where an AC power source such as outdoors cannot be used.
  • the power supply device 1 of the present embodiment includes a control board 40 that controls the output of battery power.
  • the operation control is efficiently performed by the control board so that the remaining amounts of the plurality of attached batteries do not vary. For this reason, the amount of heat generated by the control board, particularly FETs, increases. Therefore, the power supply device 1 further includes a cooling device 60 that cools the control board 40.
  • the cooling device 60 includes a heat radiating member 61 having a plurality of heat radiating fins 61 a extending along the longitudinal direction of the control board 40, and the plurality of heat radiating fins 61 a have a length over almost the entire area in the longitudinal direction of the control board 40.
  • the ventilation path 64 is formed.
  • the cooling fan 62 generates a flow of cooling air from the vicinity of the upper end of the control board 40 to the lower end, as indicated by an arrow W in FIG.
  • the entire control board 40 and its periphery are efficiently cooled by the cooling air flowing through the plurality of ventilation paths 64 along the longitudinal direction of the control board 40.
  • the control board 40 and its surroundings are reliably cooled by the cooling device 60, malfunction of the power supply device 1 and runaway control program due to heat generation can be prevented, and as a result, the durability of the power supply device 1 can be prevented. Can increase the sex.
  • the power supply device 1 of the present embodiment can be equipped with a shoulder belt 43 for the user to carry on the back. Therefore, the power supply device can be carried using the carrying handle 8 or carried on the back. If the user wears a back belt, the user can carry the power supply device 1 with the back belt and work with both hands open, so that work efficiency can be improved.
  • the back belt includes a back plate that can be attached to the main body case, and the back plate can be attached to a position where the heat radiation fin is between the back plate and the control board.
  • a gap 43c is formed between the intake hole 15a provided on the back surface of the main body case 15 and the back plate 43a so that the outside air is efficiently introduced.
  • the power supply device 1 cannot be directly pressed against the back, so that the heat generated by the power supply device 1 is suppressed from being directly transmitted to the user's back, thereby improving the usability (usability of use) of the power supply device 1. ) Can be better.
  • the surface from which the power cord 41 is pulled out can be changed to the right side or the left side of the main body 10 in accordance with the user's dominant arm in a state where the power cord 41 is carried, or according to the demands of workability and the like.
  • the convenience of 1 can be improved.
  • the power supply device 1 of the present embodiment has a remaining amount notification function for notifying the remaining amount of the battery.
  • the power supply device 1 adds the individual remaining amount display unit 30 for notifying the remaining amount Ze of each battery attached to the battery mounting unit, and the total remaining amount of all these batteries.
  • a total remaining amount display unit 31 for notifying Zt is provided. For this reason, the power supply device 1 can be efficiently operated while confirming not only the individual remaining amount Ze of the battery but also the remaining amount Zt that the power supply device 1 can output as a whole.
  • the remaining amount Ze of the battery and the total remaining amount Zt can be visually confirmed by the indicator lamp 30a of the individual remaining amount display unit 30 and the total remaining amount display unit 31, It can be confirmed at a glance by the indicator lamp 35. For this reason, even if it is a dark place, such as a nighttime, it can confirm from a distant place and the usability of the power supply device 1 can be improved at these points.
  • the indicator lamp 35 of the total remaining amount display unit 31 can be viewed from the outside through the window 2a even when the lid 2 is closed. For this reason, even if the lid 2 is not bothered to open, the total remaining amount Zt of the battery can be confirmed instantaneously from a location away from this point, and the handleability of the remaining amount notification function is further enhanced in this respect.
  • the operation switch 36 of the total remaining amount display unit 31 can be operated from the outside through the window 2a with the lid 2 closed.
  • the total remaining amount display unit 31 is configured to activate the notification function by turning on the indicator lamp 35 only when the operation switch 36 is turned on. For this reason, in the state where the operation switch 36 is not turned on, the indicator lamp 35 does not light even if the remaining amount Zt is insufficient. As a result, unnecessary power consumption such as standby power when unnecessary can be eliminated, so that the battery can last longer than the configuration in which notification is made constantly.
  • the number of batteries that can be attached to the power supply device 1 is not limited to four and can be arbitrarily set. In addition to the case where the batteries 11, 12, 13, and 14 are attached to all of the four battery attachment portions 21 to 24 set in the main body 10, there are cases where the batteries are not attached to some of the battery attachment portions. Even if it exists, the power supply device 1 can be used about the battery attached, and a residual amount alerting
  • the cooling fan 62 may be omitted. Even in this case, since the radiating fins 61a and the air passages 64 are provided along almost the entire region in the longitudinal direction of the control board 40, the control board 40 is reliably and efficiently cooled.
  • the total remaining amount display unit 31 may be provided not only at the front center of the main body 10 but also on the left and right side surfaces of the main body 10 and the lid 2, for example.
  • the window 2a of the lid 2 can be omitted. In this case, the lid 2 can be opened and the total remaining amount display unit 31 can be visually confirmed.
  • the total remaining amount display unit 31 is configured to notify only when the operation switch 36 is turned on, the total remaining amount display unit 31 may be configured to always notify by omitting the operation switch 36.
  • the number of indicator lamps 35 provided in the total remaining amount display unit 31 for notifying the change in the total remaining amount Zt can be changed without being limited to five.
  • the change in the total remaining amount Zt can be notified by changing the lighting color according to the change in the total remaining amount Zt or changing the blinking cycle.
  • the total remaining amount display unit 31 may be configured to display (digital display) the remaining amount of the battery numerically instead of schematically indicating the remaining amount of the battery by the indicator lamp.
  • the means for notifying the remaining amount of battery Ze, Zt is not limited to the visual display unit by the indicator lamps 30a, 35 as in the present embodiment, but for example, auditory sounds that generate sounds such as buzzer sounds, melodies, and voices. It may be natural or vibration-induced.
  • the main switch 42 of the power supply device 1 may be omitted, and the power switch 1 may be configured to be able to output power when at least one battery is attached to the battery attachment portion. Furthermore, the power supply apparatus 1 may be configured not only to output 36V DC power but also to output higher voltage power by using a booster circuit or the like. Moreover, it is good also as a structure which outputs alternating current power through an inverter etc. instead of direct current power, or the both.

Abstract

L'invention porte sur un appareil d'alimentation électrique (1) qui comprend : des sections de fixation (11, 12, 13, 14) auxquelles une pluralité de batteries peuvent être fixées ; et un appareil de sortie, qui délivre une puissance totale des batteries fixées aux sections de fixation. L'appareil d'alimentation électrique (1) comprend également : une carte de commande (40) qui commande la sortie de la puissance des batteries ; un appareil de refroidissement (60) qui refroidit la carte de commande ; et un boîtier de corps principal (15) dans lequel sont logés la carte de commande et l'appareil de refroidissement.
PCT/JP2012/070358 2011-08-25 2012-08-09 Appareil d'alimentation électrique WO2013027599A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201290000772.XU CN204045695U (zh) 2011-08-25 2012-08-09 电源装置
DE212012000160.3U DE212012000160U1 (de) 2011-08-25 2012-08-09 Stromversorgungsvorrichtung

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2011-183551 2011-08-25
JP2011-183552 2011-08-25
JP2011183551A JP2013046512A (ja) 2011-08-25 2011-08-25 電源装置
JP2011183552A JP5851156B2 (ja) 2011-08-25 2011-08-25 電源装置

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TWI635000B (zh) * 2015-11-17 2018-09-11 歐姆龍股份有限公司 電池殘留量顯示裝置、電池系統以及電池殘留量顯示方法
US10749430B2 (en) 2015-03-13 2020-08-18 Positec Power Tools (Suzhou) Co., Ltd. Power transmission apparatus and control method therefor, and power supply system
US11523510B2 (en) 2018-10-17 2022-12-06 Milwaukee Electric Tool Corporation Battery charger including printed circuit board having an AC portion and a DC portion
US11540429B2 (en) 2018-07-30 2022-12-27 Milwaukee Electric Tool Corporation Battery charger
US11641120B2 (en) 2018-10-11 2023-05-02 Makita Corporation Battery mount device
US11670808B2 (en) 2019-12-03 2023-06-06 Milwaukee Electric Tool Corporation Charger and charger system

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JP6595781B2 (ja) * 2015-03-19 2019-10-23 株式会社エンビジョンＡｅｓｃジャパン ポータブル電源装置
WO2021185283A1 (fr) * 2020-03-17 2021-09-23 苏州宝时得电动工具有限公司 Ensemble d'alimentation électrique de sac à dos

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JP2011097766A (ja) * 2009-10-30 2011-05-12 Makita Corp 電力供給装置
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JP3110300U (ja) * 2005-02-09 2005-06-16 株式会社バンテック 可搬式燃料電池装置
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Publication number Priority date Publication date Assignee Title
US10749430B2 (en) 2015-03-13 2020-08-18 Positec Power Tools (Suzhou) Co., Ltd. Power transmission apparatus and control method therefor, and power supply system
US11601002B2 (en) 2015-03-13 2023-03-07 Positec Power Tools (Suzhou) Co., Ltd. Electrical energy transmission apparatus, method for controlling same, and power supply system
TWI635000B (zh) * 2015-11-17 2018-09-11 歐姆龍股份有限公司 電池殘留量顯示裝置、電池系統以及電池殘留量顯示方法
US11540429B2 (en) 2018-07-30 2022-12-27 Milwaukee Electric Tool Corporation Battery charger
US11641120B2 (en) 2018-10-11 2023-05-02 Makita Corporation Battery mount device
US11523510B2 (en) 2018-10-17 2022-12-06 Milwaukee Electric Tool Corporation Battery charger including printed circuit board having an AC portion and a DC portion
US11855468B2 (en) 2018-10-17 2023-12-26 Milwaukee Electric Tool Corporation Battery charger including an isolating member
US11670808B2 (en) 2019-12-03 2023-06-06 Milwaukee Electric Tool Corporation Charger and charger system

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DE212012000160U1 (de) 2014-04-02

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