WO2017208710A1 - Charging device - Google Patents

Charging device Download PDF

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Publication number
WO2017208710A1
WO2017208710A1 PCT/JP2017/016969 JP2017016969W WO2017208710A1 WO 2017208710 A1 WO2017208710 A1 WO 2017208710A1 JP 2017016969 W JP2017016969 W JP 2017016969W WO 2017208710 A1 WO2017208710 A1 WO 2017208710A1
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WO
WIPO (PCT)
Prior art keywords
case
battery pack
fan
charging
circuit component
Prior art date
Application number
PCT/JP2017/016969
Other languages
French (fr)
Japanese (ja)
Inventor
裕司 喜嶋
晃洋 小林
Original Assignee
日立工機株式会社
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 日立工機株式会社 filed Critical 日立工機株式会社
Priority to JP2018520731A priority Critical patent/JP6835084B2/en
Priority to CN201780033648.0A priority patent/CN109328422A/en
Publication of WO2017208710A1 publication Critical patent/WO2017208710A1/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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/623—Portable devices, e.g. mobile telephones, cameras or pacemakers
    • H01M10/6235—Power tools
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • 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 a charging device that charges a battery pack that is detachably attached to, for example, a cordless electric tool.
  • the cordless electric tool is detachably mounted with a battery pack for supplying electric power to a motor that is a drive source.
  • the battery pack includes a secondary battery cell such as a rechargeable lithium battery.
  • a charging device is used to charge the battery pack.
  • the charging device includes a fan for cooling the battery pack being charged.
  • the wind window of the battery pack attached to the charging device and the intake port of the charging device communicate with each other, and the air flow generated by the fan is sucked into the charging device through the inside of the battery pack and exhausted from the exhaust port of the charging device. Is done.
  • the present invention has been made in view of such a situation, and an object of the present invention is to provide a charging device capable of suitably cooling a battery pack and a charging circuit component being charged.
  • the charging device includes a case having an installation portion on a lower surface and a battery pack mounting portion on an upper surface, a fan provided in the case, and a charging circuit component provided in the case.
  • the case has an exhaust port and first and second intake ports, the exhaust port faces the battery pack mounting portion, and an air flow generated by the fan is sucked from the first intake port and charged. The first airflow flowing toward the exhaust port without passing through the circuit components for use, and the air drawn from the second intake port, passing through the circuit components for charging, and merged with the first airflow toward the exhaust port And a second air flow that flows.
  • the fan may be provided below the battery pack mounting portion, and the first intake port may be provided on a lower surface of the case and face the exhaust port.
  • the charging circuit component may be provided at a position avoiding a space between the exhaust port and the first intake port.
  • the charging device includes a case having an installation portion on a lower surface and a battery pack mounting portion on an upper surface, a fan provided in the case, and a charging circuit component provided in the case.
  • the case has an intake port and first and second exhaust ports, the intake port faces the battery pack mounting portion, and an air flow generated by the fan is sucked from the intake port and the charging circuit A first airflow that flows toward the first exhaust port without passing through the components, and a branch from the first airflow that is sucked in from the intake port and passes through the charging circuit component toward the second exhaust port. And a second air flow that flows.
  • the fan may be a single fan provided below the battery pack mounting portion, and the first exhaust port may be provided on a lower surface of the case and face the intake port.
  • the charging circuit component may be provided at a position avoiding a space between the intake port and the first exhaust port.
  • the fan includes a first fan provided between the intake port and the first exhaust port, and a second fan provided between the intake port and the second exhaust port in the airflow. You may have.
  • the charging device includes a case having an installation portion on a lower surface and a battery pack mounting portion on an upper surface, a fan provided in the case, and a charging circuit component provided in the case.
  • the case has first and second intake ports and an exhaust port, the first intake port faces the battery pack mounting portion, and the airflow generated by the fan is sucked from the first intake port.
  • a second airflow flowing in the air is
  • the second air inlet may be provided on the lower surface of the case and face the first air inlet.
  • the charging circuit component may be provided at a position away from between the first and second intake ports.
  • This charging device has a case having an installation portion on the lower surface and a battery pack mounting portion on the upper surface, a single fan provided in the case, a circuit component for charging provided in the case,
  • the case has first and second air inlets and first and second air outlets, the first air inlet or the first air outlet facing the battery pack mounting portion, and the fan
  • the generated air currents are sucked from the first and second intake ports, merge with each other, a part flows toward the first exhaust port without passing through the charging circuit components, and the rest flows in the charging circuit. It flows through the part toward the second exhaust port.
  • This charging device has a case having an installation portion on the lower surface and a battery pack mounting portion on the upper surface, a single fan provided in the case, a circuit component for charging provided in the case, The case has first and second air inlets and first and second air outlets, the first air inlet or the first air outlet facing the battery pack mounting portion, and the fan
  • the generated air current is sucked from the first air intake port and flows toward the first exhaust port without passing through the charging circuit components, and the charging circuit is sucked from the second air intake port.
  • a second airflow flowing toward the second exhaust port through the component wherein the first and second airflows flow independently from each other.
  • the charging device which can cool suitably the battery pack currently charged and the circuit component for charging is provided.
  • FIG. 1 is a first perspective view of a charging device 1A according to Embodiment 1 of the present invention.
  • FIG. The 2nd perspective view of charging device 1A.
  • the perspective view of the battery pack 5 which can be charged with 1 A of charging devices.
  • FIG. 3 is a front sectional view of a state where the battery pack 5 is attached to the charging device 1A.
  • the front sectional view of the state where battery pack 5 is attached to charging device 1C according to Embodiment 3 of the present invention.
  • FIG. 6 is a front sectional view of a state where a battery pack 5 is attached to a charging device 1D according to Embodiment 4 of the present invention.
  • the charging device 1 ⁇ / b> A includes a case in which an upper case 2 and a lower case 3 are combined.
  • the upper case 2 and the lower case 3 are, for example, resin molded bodies.
  • the lower case 3 has a plurality of leg portions 3 a serving as installation portions on the lower surface.
  • the upper case 2 has a battery pack mounting portion 2a on the upper surface for mounting (sliding mounting) the battery pack 5 in a removable manner.
  • the charging device 1 is connected to an external power source such as a commercial power source by a power cord (not shown), and charges the battery pack 5 mounted on the battery pack mounting portion 2a with power supplied from the external power source.
  • an external power source such as a commercial power source by a power cord (not shown)
  • charges the battery pack 5 mounted on the battery pack mounting portion 2a with power supplied from the external power source since the structure regarding charging may be the same as the conventional one, description thereof is omitted here.
  • the upper case 2 has a predetermined number of wind windows 7 that open to the battery pack mounting portion 2 a.
  • the battery pack 5 has a predetermined number of wind windows 5 a facing the battery pack mounting portion 2 a of the upper case 2.
  • the wind window 5a and the wind window 7 communicate with each other in a state where the battery pack 5 is attached to the charging device 1A as shown in FIGS.
  • the battery pack 5 has a wind window 5b on the front surface.
  • the lower case 3 has an air window 6 that opens on the lower surface.
  • the wind window 6 is located below the battery pack mounting part 2a.
  • the lower case 3 has a wind window 8.
  • the wind window 8 opens at a position where a later-described charging circuit component exists in an air path between itself and a later-described fan 15.
  • the wind window 5a of the battery pack 5 is an intake port
  • the wind window 5b is an exhaust port.
  • the wind window 6 of the charging device 1A is a first intake port
  • the wind window 8 is a second intake port
  • the wind window 7 is an exhaust port.
  • a board 4, a charging circuit component provided on the board 4, and a fan 15 are provided in an internal space formed by the upper case 2 and the lower case 3.
  • the charging circuit components include a switching element 21 such as an FET, a photocoupler 22, a transformer 23, a diode 24, and heat radiation fins 25 to 27.
  • the fan 15 is an axial fan, and is held directly below the battery pack mounting portion 2a by the rib 13 of the upper case 2 so as to suck air from below and send it upward.
  • the board 4 and the charging circuit component provided on the board 4 are provided at a position avoiding the space between the wind window 6 and the wind window 7.
  • the space below the fan 15 and the accommodation space of the substrate 4 are partitioned by the rib 14 of the lower case 3 so that liquid such as water that has entered from the wind window 7 does not flow into the accommodation space of the substrate 4.
  • the airflow generated by the fan 15 includes a first airflow k1 and a second airflow k2.
  • the first air flow k ⁇ b> 1 is sucked from the wind window 6, flows toward the wind window 7 without passing through the charging circuit components on the substrate 4, and is exhausted from the wind window 7.
  • the second air flow k2 is sucked from the wind window 8, passes through the charging circuit components on the board 4 (cools the charging circuit components), and merges with the first air flow k1 on the suction side of the fan 15 toward the wind window 7. And is exhausted from the wind window 7.
  • the first airflow k1 and the second airflow k2 exhausted from the wind window 7 enter the battery pack 5 from the air window 5a of the battery pack 5, cool the battery cells and the like in the battery pack 5, and are exhausted from the air window 5b.
  • FIG. 7 is a front sectional view of a state where battery pack 5 is attached to charging device 1B according to Embodiment 2 of the present invention.
  • FIG. 8 is a right sectional view of the same state. In FIG. 8, only one wind window 5b is shown in a simplified manner.
  • the fan 15 is held by the lower case 3 below the battery pack mounting portion 2a and directly above the wind window 6 so as to suck air from above and send it out downward.
  • the fan 16 is an axial fan, and sucks air from the right side (the space below the wind window 7) in FIG. 7 and sends it out to the left side (board 4 and charging circuit component side).
  • the wind window 8 opens at a position where the charging circuit component on the substrate 4 exists in the air path between itself and the fan 16.
  • the wind window 5a of the battery pack 5 is an exhaust port
  • the wind window 5b is an intake port
  • the wind window 6 of the charging device 1B is a first exhaust port
  • the wind window 7 is an intake port
  • the wind window 8 is a second exhaust port.
  • the fan 15 and the fan 16 generate a first air flow k1 and a second air flow k2.
  • the first air flow k ⁇ b> 1 is sucked from the wind window 7, flows toward the wind window 6 without passing through the charging circuit components on the substrate 4, and is exhausted from the wind window 6.
  • the second air flow k2 is drawn from the wind window 7, branches from the first air flow k1, passes through the charging circuit components on the substrate 4 (cools the charging circuit components), flows toward the wind window 8, and from the wind window 8. Exhausted. As shown in FIG.
  • the first air flow k1 and the second air flow k2 are sucked into the battery pack 5 from the wind window 5b of the battery pack 5 before being sucked from the wind window 7, and the battery cells 5c in the battery pack 5 and the like. Is cooled, exhausted from the wind window 5a, and sucked into the charging device 1B from the wind window 7.
  • the cooling efficiency of the battery pack 5 is enhanced.
  • the charging circuit components on the substrate 4 are also cooled by the second air flow k2 after the battery pack 5 is cooled, it is possible to suitably cope with heat generation of the charging circuit components.
  • the same effect as in the first embodiment can be obtained on the waterproof surface.
  • FIG. 9 is a front sectional view of a state where battery pack 5 is mounted on charging device 1C according to Embodiment 3 of the present invention.
  • Charging device 1C corresponds to a device in which fan 15 is eliminated from charging device 1B according to the second embodiment shown in FIG.
  • the wind window 6 is a first intake port
  • the wind window 7 is a second intake port
  • the wind window 8 is an exhaust port.
  • the fan 16 generates a first air flow k1 and a second air flow k2.
  • the first air flow k1 is drawn from the wind window 7, passes through the charging circuit components on the substrate 4 (cools the charging circuit components), flows toward the wind window 8, and is exhausted from the wind window 8.
  • the first air flow k1 cools the battery pack 5 in the same manner as in the second embodiment (FIG. 8) before being sucked from the wind window 7.
  • the second air flow k2 is sucked in from the wind window 6, merges with the first air flow k1 on the suction side of the fan 16 (the space below the wind window 7), passes through the charging circuit components on the substrate 4 (the charging circuit components are passed through The air flows toward the wind window 8 and is exhausted from the wind window 8.
  • the circuit component for charging on the substrate 4 is formed by merging the second airflow k2 that has not cooled the battery pack 5 with the first airflow k1 while cooling the battery pack 5 with the first airflow k1. Therefore, the cooling efficiency of the charging circuit component can be increased as compared with the case where the charging circuit component is cooled only by the airflow after the battery pack 5 is cooled. Further, since the first air flow k1 and the second air flow k2 are generated by the single fan 16, the number of parts is small and the cost is low as in the first embodiment, which is advantageous for downsizing. In addition, the same effect as that of the first embodiment can be obtained on the waterproof surface.
  • FIG. 10 is a front sectional view of a state where battery pack 5 is attached to charging device 1D according to Embodiment 4 of the present invention.
  • the charging device 1D is different from that of the third embodiment shown in FIG. 9 in that a fan 17 is added and the wind window 8 of the lower case 3 is replaced with the wind window 9 in the upper case 2. Match on a point.
  • the fan 17 is provided on the opposite side of the fan 16 with the charging circuit component on the board 4 interposed therebetween, and sucks air from the right side (charging circuit component side) in FIG. 10 and sends it out to the left wind window 9 side. It is held by the lower case 3.
  • the number of fans is increased, the number of parts is increased as compared with the third embodiment, but the amount of cooling air can be increased.
  • the wind window 9 used as an exhaust port is provided in the upper part of charging device 1D, the upper part of the circuit component for charging can be cooled preferentially.
  • FIG. 11 is a front sectional view of a state where battery pack 5 is mounted on charging device 1E according to Embodiment 5 of the present invention.
  • the charging device 1E is different from that of the first embodiment shown in FIG. 6 in that a fan 16 is added and a wind window 10 serving as an air inlet is added to the lower case 3, and the other points are different.
  • the fan 16 has the same arrangement as that of the third embodiment shown in FIG.
  • the fan 15 and the fan 16 generate a first air flow k1 and a second air flow k2.
  • the first air flow k1 is sucked from the wind window 6 and merges with the second air flow k2 on the suction side of the fan 15 and the fan 16, and a part passes through the charging circuit components on the substrate 4 (cools the charging circuit components). ), Flows toward the wind window 8 and is exhausted from the wind window 8, and the rest flows toward the wind window 7 without passing through the charging circuit components on the substrate 4 and is exhausted from the wind window 7.
  • the second air flow k2 is sucked from the wind window 10 and merges with the first air flow k1 on the suction side of the fan 15 and the fan 16, and a part flows toward the wind window 7 without passing through the charging circuit components on the substrate 4.
  • the battery pack 5 and the charging circuit components on the substrate 4 are cooled by the strong and fresh air flow generated by the two fans 15 and 16, so that the battery pack 5 and the charging circuit components are cooled. Efficiency is increased. In addition, the same effect as in the first embodiment can be obtained on the waterproof surface.
  • FIG. 12 is a front sectional view of a state where battery pack 5 is attached to charging device 1F according to Embodiment 6 of the present invention.
  • Charging device 1F is different from that of the fifth embodiment shown in FIG. 11 in that first air flow k1 and second air flow k2 are guided by rib 12 and separated from each other (independent). Dissimilar and otherwise consistent.
  • the fan 15 and the fan 16 generate a first air flow k1 and a second air flow k2.
  • the first air flow k1 is sucked from the wind window 6, passes through the charging circuit components on the substrate 4 (cools the charging circuit components), flows toward the wind window 8, and is exhausted from the wind window 8.
  • the second air flow k ⁇ b> 2 is sucked from the wind window 10, flows toward the wind window 7 without passing through the charging circuit components on the substrate 4, and is exhausted from the wind window 7.
  • the battery pack 5 and the charging circuit components on the substrate 4 are cooled by the strong and fresh air flow generated by the two fans 15 and 16, so that the battery pack 5 and the charging circuit components are cooled. Efficiency is increased.
  • the same effect as in the first embodiment can be obtained on the waterproof surface.
  • the first air flow k ⁇ b> 1 and the second air flow k ⁇ b> 2 are generated by a single fan by using, for example, a single centrifugal fan disposed obliquely instead of the fan 15 and the fan 16. May be. In this case, the number of parts can be reduced although the air volume of the cooling air is reduced. 11 and 12, the direction of the fan 15 and the fan 16 may be reversed, and the wind windows 7 and 8 may be configured as intake ports and the wind windows 6 and 10 may be configured as exhaust ports.
  • SYMBOLS 1A-1F ... Charger (charger), 2 ... Upper case (upper outer frame), 2a ... Battery pack mounting part, 3 ... Lower case (lower outer frame), 3a ... Leg part, 4 ... Board (main board) 5 ... Battery pack, 5a, 5b ... Wind window, 6-10 ... Wind window, 12-14 ... Rib, 15-17 ... Fan, 21 ... Switching element, 22 ... Photocoupler, 23 ... Transformer, 24 ... Diode, 25- 27 ... radiating fins, k1 ... first air flow, k2 ... second air flow

Abstract

In order to provide a charging device capable of adequately cooling a battery pack and charging circuit components during charging, the charging device 1A is equipped with a fan 15, a substrate 4, charging circuit components disposed on the substrate 4, which are placed in an internal space formed by an upper case 2 and a lower case 3. A battery pack attachment part is provided on the upper surface of the upper case 2. Airflows generated by the fan 15 include: a first airflow k1 which is sucked in from ventilation window 6 and flows into the battery pack 5 while bypassing the charging circuit components; and a second airflow k2 which is sucked in from ventilation window 8, passes over the charging circuit components, and flows into the battery pack 5 after merging with the first airflow k1.

Description

充電装置Charger
本発明は、例えばコードレス電動工具に着脱可能に装着される電池パックを充電する充電装置に関する。 The present invention relates to a charging device that charges a battery pack that is detachably attached to, for example, a cordless electric tool.
コードレス電動工具は、駆動源であるモータに電力を供給するための電池パックを着脱可能に装着する。電池パックは、充電可能なリチウム電池等の二次電池セルを内蔵する。電池パックの充電には充電装置が用いられる。充電装置は、充電中の電池パックを冷却するためのファンを内蔵する。充電装置に装着された電池パックの風窓と、充電装置の吸気口とが連通し、前記ファンの発生した気流が電池パックの内部を通って充電装置内に吸い込まれ、充電装置の排気口から排気される。 The cordless electric tool is detachably mounted with a battery pack for supplying electric power to a motor that is a drive source. The battery pack includes a secondary battery cell such as a rechargeable lithium battery. A charging device is used to charge the battery pack. The charging device includes a fan for cooling the battery pack being charged. The wind window of the battery pack attached to the charging device and the intake port of the charging device communicate with each other, and the air flow generated by the fan is sucked into the charging device through the inside of the battery pack and exhausted from the exhaust port of the charging device. Is done.
特開２０１５－０１９５３５号公報JP2015-019535A
近年、電池パックの高容量化に伴い充電装置による充電時間の短縮化が進んでいる一方で、充電装置の小型化が進んでいる。そのため、充電中の電池パック及び充電用回路部品の発熱が懸案となっている。 In recent years, with the increase in capacity of battery packs, while the charging time by the charging device has been shortened, the size of the charging device has been reduced. For this reason, heat generation of the battery pack and the charging circuit components during charging is a concern.
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、充電中の電池パック及び充電用回路部品を好適に冷却することの可能な充電装置を提供することにある。 The present invention has been made in view of such a situation, and an object of the present invention is to provide a charging device capable of suitably cooling a battery pack and a charging circuit component being charged.
本発明のある態様は、充電装置である。この充電装置は、下面に設置部を有し、上面に電池パック装着部を有するケースと、前記ケース内に設けられたファンと、前記ケース内に設けられた充電用回路部品と、を備え、前記ケースは、排気口並びに第１及び第２吸気口を有し、前記排気口は、前記電池パック装着部に臨み、前記ファンの発生する気流は、前記第１吸気口から吸い込まれて前記充電用回路部品を通らずに前記排気口に向かって流れる第１気流と、前記第２吸気口から吸い込まれて前記充電用回路部品を通り、前記第１気流と合流して前記排気口に向かって流れる第２気流と、を含むことを特徴とする。 One embodiment of the present invention is a charging device. The charging device includes a case having an installation portion on a lower surface and a battery pack mounting portion on an upper surface, a fan provided in the case, and a charging circuit component provided in the case. The case has an exhaust port and first and second intake ports, the exhaust port faces the battery pack mounting portion, and an air flow generated by the fan is sucked from the first intake port and charged. The first airflow flowing toward the exhaust port without passing through the circuit components for use, and the air drawn from the second intake port, passing through the circuit components for charging, and merged with the first airflow toward the exhaust port And a second air flow that flows.
前記ファンは、前記電池パック装着部の下方に設けられ、前記第１吸気口は、前記ケースの下面に設けられて前記排気口と対向してもよい。 The fan may be provided below the battery pack mounting portion, and the first intake port may be provided on a lower surface of the case and face the exhaust port.
前記充電用回路部品は、前記排気口と前記第１吸気口との間を避けた位置に設けられてもよい。 The charging circuit component may be provided at a position avoiding a space between the exhaust port and the first intake port.
本発明のもう１つの態様は、充電装置である。この充電装置は、下面に設置部を有し、上面に電池パック装着部を有するケースと、前記ケース内に設けられたファンと、前記ケース内に設けられた充電用回路部品と、を備え、前記ケースは、吸気口並びに第１及び第２排気口を有し、前記吸気口は、前記電池パック装着部に臨み、前記ファンの発生する気流は、前記吸気口から吸い込まれて前記充電用回路部品を通らずに前記第１排気口に向かって流れる第１気流と、前記吸気口から吸い込まれて前記第１気流から分岐し、前記充電用回路部品を通って前記第２排気口に向かって流れる第２気流と、を含むことを特徴とする。 Another aspect of the present invention is a charging device. The charging device includes a case having an installation portion on a lower surface and a battery pack mounting portion on an upper surface, a fan provided in the case, and a charging circuit component provided in the case. The case has an intake port and first and second exhaust ports, the intake port faces the battery pack mounting portion, and an air flow generated by the fan is sucked from the intake port and the charging circuit A first airflow that flows toward the first exhaust port without passing through the components, and a branch from the first airflow that is sucked in from the intake port and passes through the charging circuit component toward the second exhaust port. And a second air flow that flows.
前記ファンは、前記電池パック装着部の下方に設けられた単一ファンであり、前記第１排気口は、前記ケースの下面に設けられて前記吸気口と対向してもよい。 The fan may be a single fan provided below the battery pack mounting portion, and the first exhaust port may be provided on a lower surface of the case and face the intake port.
前記充電用回路部品は、前記吸気口と前記第１排気口との間を避けた位置に設けられてもよい。 The charging circuit component may be provided at a position avoiding a space between the intake port and the first exhaust port.
前記ファンは、前記気流内において、前記吸気口と前記第１排気口との間に設けられた第１ファンと、前記吸気口と前記第２排気口との間に設けられた第２ファンと、を有してもよい。 The fan includes a first fan provided between the intake port and the first exhaust port, and a second fan provided between the intake port and the second exhaust port in the airflow. You may have.
本発明のもう１つの態様は、充電装置である。この充電装置は、下面に設置部を有し、上面に電池パック装着部を有するケースと、前記ケース内に設けられたファンと、前記ケース内に設けられた充電用回路部品と、を備え、前記ケースは、第１及び第２吸気口並びに排気口を有し、前記第１吸気口は、前記電池パック装着部に臨み、前記ファンの発生する気流は、前記第１吸気口から吸い込まれて前記充電用回路部品を通って前記排気口に向かって流れる第１気流と、前記第２吸気口から吸い込まれて前記第１気流と合流し、前記充電用回路部品を通って前記排気口に向かって流れる第２気流と、を含むことを特徴とする。 Another aspect of the present invention is a charging device. The charging device includes a case having an installation portion on a lower surface and a battery pack mounting portion on an upper surface, a fan provided in the case, and a charging circuit component provided in the case. The case has first and second intake ports and an exhaust port, the first intake port faces the battery pack mounting portion, and the airflow generated by the fan is sucked from the first intake port. The first airflow flowing toward the exhaust port through the charging circuit component, and the first airflow sucked from the second intake port and merged with the first airflow, and toward the exhaust port through the charging circuit component. And a second airflow flowing in the air.
前記第２吸気口は、前記ケースの下面に設けられて前記第１吸気口と対向してもよい。 The second air inlet may be provided on the lower surface of the case and face the first air inlet.
前記充電用回路部品は、前記第１及び第２吸気口の間を避けた位置に設けられてもよい。 The charging circuit component may be provided at a position away from between the first and second intake ports.
本発明のもう１つの態様は、充電装置である。この充電装置は、下面に設置部を有し、上面に電池パック装着部を有するケースと、前記ケース内に設けられた単一のファンと、前記ケース内に設けられた充電用回路部品と、を備え、前記ケースは、第１及び第２吸気口並びに第１及び第２排気口を有し、前記第１吸気口又は前記第１排気口は、前記電池パック装着部に臨み、前記ファンの発生する気流は、前記第１及び第２吸気口からそれぞれ吸い込まれ、互いに合流し、一部は前記充電用回路部品を通らずに前記第１排気口に向かって流れ、残りは前記充電用回路部品を通って前記第２排気口に向かって流れることを特徴とする。 Another aspect of the present invention is a charging device. This charging device has a case having an installation portion on the lower surface and a battery pack mounting portion on the upper surface, a single fan provided in the case, a circuit component for charging provided in the case, The case has first and second air inlets and first and second air outlets, the first air inlet or the first air outlet facing the battery pack mounting portion, and the fan The generated air currents are sucked from the first and second intake ports, merge with each other, a part flows toward the first exhaust port without passing through the charging circuit components, and the rest flows in the charging circuit. It flows through the part toward the second exhaust port.
本発明のもう１つの態様は、充電装置である。この充電装置は、下面に設置部を有し、上面に電池パック装着部を有するケースと、前記ケース内に設けられた単一のファンと、前記ケース内に設けられた充電用回路部品と、を備え、前記ケースは、第１及び第２吸気口並びに第１及び第２排気口を有し、前記第１吸気口又は前記第１排気口は、前記電池パック装着部に臨み、前記ファンの発生する気流は、前記第１吸気口から吸い込まれて前記充電用回路部品を通らずに前記第１排気口に向かって流れる第１気流と、前記第２吸気口から吸い込まれて前記充電用回路部品を通って前記第２排気口に向かって流れる第２気流と、を含み、前記第１及び第２気流が互いに独立して流れることを特徴とする。 Another aspect of the present invention is a charging device. This charging device has a case having an installation portion on the lower surface and a battery pack mounting portion on the upper surface, a single fan provided in the case, a circuit component for charging provided in the case, The case has first and second air inlets and first and second air outlets, the first air inlet or the first air outlet facing the battery pack mounting portion, and the fan The generated air current is sucked from the first air intake port and flows toward the first exhaust port without passing through the charging circuit components, and the charging circuit is sucked from the second air intake port. And a second airflow flowing toward the second exhaust port through the component, wherein the first and second airflows flow independently from each other.
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 should be noted that any combination of the above-described constituent elements, and those obtained by converting the expression of the present invention between methods and systems are also effective as aspects of the present invention.
本発明によれば、充電中の電池パック及び充電用回路部品を好適に冷却することの可能な充電装置を提供する。 ADVANTAGE OF THE INVENTION According to this invention, the charging device which can cool suitably the battery pack currently charged and the circuit component for charging is provided.
本発明の実施の形態１に係る充電装置１Ａの第１斜視図。1 is a first perspective view of a charging device 1A according to Embodiment 1 of the present invention. FIG. 充電装置１Ａの第２斜視図。The 2nd perspective view of charging device 1A. 充電装置１Ａの第３斜視図。The 3rd perspective view of charging device 1A. 充電装置１Ａで充電可能な電池パック５の斜視図。The perspective view of the battery pack 5 which can be charged with 1 A of charging devices. 充電装置１Ａに電池パック５を装着した状態の斜視図。The perspective view of the state which attached the battery pack 5 to 1 A of charging devices. 充電装置１Ａに電池パック５を装着した状態の正断面図。FIG. 3 is a front sectional view of a state where the battery pack 5 is attached to the charging device 1A. 本発明の実施の形態２に係る充電装置１Ｂに電池パック５を装着した状態の正断面図。The front sectional view of the state where battery pack 5 is attached to charging device 1B according to Embodiment 2 of the present invention. 同状態の右側断面図。The right sectional view of the same state. 本発明の実施の形態３に係る充電装置１Ｃに電池パック５を装着した状態の正断面図。The front sectional view of the state where battery pack 5 is attached to charging device 1C according to Embodiment 3 of the present invention. 本発明の実施の形態４に係る充電装置１Ｄに電池パック５を装着した状態の正断面図。FIG. 6 is a front sectional view of a state where a battery pack 5 is attached to a charging device 1D according to Embodiment 4 of the present invention. 本発明の実施の形態５に係る充電装置１Ｅに電池パック５を装着した状態の正断面図。The front sectional view of the state where battery pack 5 is attached to charging device 1E according to Embodiment 5 of the present invention. 本発明の実施の形態６に係る充電装置１Ｆに電池パック５を装着した状態の正断面図。The front sectional view of the state where battery pack 5 is attached to charging device 1F according to Embodiment 6 of the present invention.
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, member, process, etc. which are shown by each drawing, and the overlapping description is abbreviate | omitted suitably. In addition, the embodiments do not limit the invention but are exemplifications, and all features and combinations thereof described in the embodiments are not necessarily essential to the invention.
実施の形態１　図１～図６を参照し、本発明の実施の形態１に係る充電装置１Ａについて説明する。充電装置１Ａは、上ケース２及び下ケース３を組み合わせたケースを備える。上ケース２及び下ケース３は、例えば樹脂成形体である。図２及び図３に示すように、下ケース３は、下面に設置部となる複数の脚部３ａを有する。上ケース２は、電池パック５を着脱可能に装着（スライド装着）する電池パック装着部２ａを上面に有する。充電装置１は、図示しない電源コードにより商用電源等の外部電源に接続され、当該外部電源からの供給電力により、電池パック装着部２ａに装着した電池パック５を充電する。なお、充電に関する構成は従来と同じでよいのでここでは説明を省略する。 First Embodiment A charging device 1A according to a first embodiment of the present invention will be described with reference to FIGS. The charging device 1 </ b> A includes a case in which an upper case 2 and a lower case 3 are combined. The upper case 2 and the lower case 3 are, for example, resin molded bodies. As shown in FIGS. 2 and 3, the lower case 3 has a plurality of leg portions 3 a serving as installation portions on the lower surface. The upper case 2 has a battery pack mounting portion 2a on the upper surface for mounting (sliding mounting) the battery pack 5 in a removable manner. The charging device 1 is connected to an external power source such as a commercial power source by a power cord (not shown), and charges the battery pack 5 mounted on the battery pack mounting portion 2a with power supplied from the external power source. In addition, since the structure regarding charging may be the same as the conventional one, description thereof is omitted here.
図１に示すように、上ケース２は、電池パック装着部２ａに開口する所定数の風窓７を有する。図４に示すように、電池パック５は、上ケース２の電池パック装着部２ａに臨む所定数の風窓５ａを有する。風窓５ａ及び風窓７は、図５及び図６に示すように充電装置１Ａに電池パック５を装着した状態で、相互に連通する。図４及び図５に示すように、電池パック５は、前面に風窓５ｂを有する。図６に示すように、下ケース３は、下面に開口する風窓６を有する。風窓６は、電池パック装着部２ａの下方に位置する。下ケース３は、風窓８を有する。風窓８は、自身と後述のファン１５との間の風路に後述の充電用回路部品が存在する位置に開口する。本実施の形態では、電池パック５の風窓５ａは吸気口であり、風窓５ｂは排気口である。また、充電装置１Ａの風窓６は第１吸気口であり、風窓８は第２吸気口であり、風窓７は排気口である。 As shown in FIG. 1, the upper case 2 has a predetermined number of wind windows 7 that open to the battery pack mounting portion 2 a. As shown in FIG. 4, the battery pack 5 has a predetermined number of wind windows 5 a facing the battery pack mounting portion 2 a of the upper case 2. The wind window 5a and the wind window 7 communicate with each other in a state where the battery pack 5 is attached to the charging device 1A as shown in FIGS. As shown in FIGS. 4 and 5, the battery pack 5 has a wind window 5b on the front surface. As shown in FIG. 6, the lower case 3 has an air window 6 that opens on the lower surface. The wind window 6 is located below the battery pack mounting part 2a. The lower case 3 has a wind window 8. The wind window 8 opens at a position where a later-described charging circuit component exists in an air path between itself and a later-described fan 15. In the present embodiment, the wind window 5a of the battery pack 5 is an intake port, and the wind window 5b is an exhaust port. Further, the wind window 6 of the charging device 1A is a first intake port, the wind window 8 is a second intake port, and the wind window 7 is an exhaust port.
図６に示すように、上ケース２及び下ケース３によって形成される内部空間には、基板４、基板４上に設けられた充電用回路部品、及びファン１５が設けられる。充電用回路部品は、ＦＥＴ等のスイッチング素子２１、フォトカプラ２２、トランス２３、ダイオード２４、及び放熱フィン２５～２７等を含む。ファン１５は、軸流ファンであって、下方から空気を吸い込んで上方に送り出すように、上ケース２のリブ１３によって電池パック装着部２ａの直下に保持される。基板４及びそれに設けられた充電用回路部品は、風窓６と風窓７との間を避けた位置に設けられる。ファン１５の下方の空間と基板４の収容空間との間は、風窓７から浸入した水等の液体が基板４の収容空間に流出しないように、下ケース３のリブ１４によって仕切られる。 As shown in FIG. 6, a board 4, a charging circuit component provided on the board 4, and a fan 15 are provided in an internal space formed by the upper case 2 and the lower case 3. The charging circuit components include a switching element 21 such as an FET, a photocoupler 22, a transformer 23, a diode 24, and heat radiation fins 25 to 27. The fan 15 is an axial fan, and is held directly below the battery pack mounting portion 2a by the rib 13 of the upper case 2 so as to suck air from below and send it upward. The board 4 and the charging circuit component provided on the board 4 are provided at a position avoiding the space between the wind window 6 and the wind window 7. The space below the fan 15 and the accommodation space of the substrate 4 are partitioned by the rib 14 of the lower case 3 so that liquid such as water that has entered from the wind window 7 does not flow into the accommodation space of the substrate 4.
ファン１５の発生する気流は、第１気流ｋ１及び第２気流ｋ２を含む。第１気流ｋ１は、風窓６から吸い込まれ、基板４上の充電用回路部品を通らずに風窓７に向かって流れ、風窓７から排気される。第２気流ｋ２は、風窓８から吸い込まれ、基板４上の充電用回路部品を通り（充電用回路部品を冷却し）、ファン１５の吸込み側において第１気流ｋ１と合流して風窓７に向かって流れ、風窓７から排気される。風窓７から排気された第１気流ｋ１及び第２気流ｋ２は、電池パック５の風窓５ａから電池パック５内に入り、電池パック５内の電池セル等を冷却し、風窓５ｂから排気される。 The airflow generated by the fan 15 includes a first airflow k1 and a second airflow k2. The first air flow k <b> 1 is sucked from the wind window 6, flows toward the wind window 7 without passing through the charging circuit components on the substrate 4, and is exhausted from the wind window 7. The second air flow k2 is sucked from the wind window 8, passes through the charging circuit components on the board 4 (cools the charging circuit components), and merges with the first air flow k1 on the suction side of the fan 15 toward the wind window 7. And is exhausted from the wind window 7. The first airflow k1 and the second airflow k2 exhausted from the wind window 7 enter the battery pack 5 from the air window 5a of the battery pack 5, cool the battery cells and the like in the battery pack 5, and are exhausted from the air window 5b.
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) 基板４上の充電用回路部品を第２気流ｋ２により冷却しつつ、充電用回路部品を冷却していない第１気流ｋ１を第２気流ｋ２と合流させて電池パック５の冷却に利用するため、充電用回路部品を冷却した後の気流のみで電池パック５を冷却する場合と比較して、電池パック５の冷却効率を高めることができる。 (1) Cooling the battery pack 5 by using the second airflow k2 to cool the charging circuit components on the battery board 4 and combining the first airflow k1 that has not cooled the charging circuit components with the second airflow k2. Therefore, the cooling efficiency of the battery pack 5 can be increased as compared with the case where the battery pack 5 is cooled only by the airflow after cooling the charging circuit components.
(2) 第１気流ｋ１及び第２気流ｋ２を単一のファン１５で発生させるため、部品点数が少なくコスト安であり、また小型化に有利である。 (2) Since the first air flow k1 and the second air flow k2 are generated by the single fan 15, the number of parts is small, the cost is low, and the size reduction is advantageous.
(3) 電池パック５を装着していない状態で風窓７から水等の液体が入り込んでも、風窓６から排水でき、防水面でも優れている。 (3) Even if liquid such as water enters from the wind window 7 without the battery pack 5 attached, it can be drained from the wind window 6 and the waterproof surface is excellent.
実施の形態２　図７は、本発明の実施の形態２に係る充電装置１Ｂに電池パック５を装着した状態の正断面図である。図８は、同状態の右側断面図である。なお、図８において、風窓５ｂは、簡易的に１つのみを大きく示している。以下、実施の形態１との相違点を中心に説明する。ファン１５は、上方から空気を吸い込んで下方に送り出すように、下ケース３によって電池パック装着部２ａの下方かつ風窓６の真上に保持される。ファン１６は、軸流ファンであって、図７中の右方（風窓７の下方の空間）から空気を吸い込んで左方（基板４及び充電用回路部品側）に送り出すように、下ケース３によって電池パック装着部２ａの下方に保持される。風窓８は、自身とファン１６との間の風路に基板４上の充電用回路部品が存在する位置に開口する。本実施の形態では、電池パック５の風窓５ａは排気口であり、風窓５ｂは吸気口である。また、充電装置１Ｂの風窓６は第１排気口であり、風窓７は吸気口であり、風窓８は第２排気口である。 Embodiment 2 FIG. 7 is a front sectional view of a state where battery pack 5 is attached to charging device 1B according to Embodiment 2 of the present invention. FIG. 8 is a right sectional view of the same state. In FIG. 8, only one wind window 5b is shown in a simplified manner. Hereinafter, the difference from the first embodiment will be mainly described. The fan 15 is held by the lower case 3 below the battery pack mounting portion 2a and directly above the wind window 6 so as to suck air from above and send it out downward. The fan 16 is an axial fan, and sucks air from the right side (the space below the wind window 7) in FIG. 7 and sends it out to the left side (board 4 and charging circuit component side). Is held below the battery pack mounting portion 2a. The wind window 8 opens at a position where the charging circuit component on the substrate 4 exists in the air path between itself and the fan 16. In the present embodiment, the wind window 5a of the battery pack 5 is an exhaust port, and the wind window 5b is an intake port. Further, the wind window 6 of the charging device 1B is a first exhaust port, the wind window 7 is an intake port, and the wind window 8 is a second exhaust port.
ファン１５及びファン１６は、第１気流ｋ１及び第２気流ｋ２を発生する。第１気流ｋ１は、風窓７から吸い込まれ、基板４上の充電用回路部品を通らずに風窓６に向かって流れ、風窓６から排気される。第２気流ｋ２は、風窓７から吸い込まれ、第１気流ｋ１から分岐し、基板４上の充電用回路部品を通り（充電用回路部品を冷却し）、風窓８に向かって流れ、風窓８から排気される。第１気流ｋ１及び第２気流ｋ２は、図８に示すように、風窓７から吸い込まれる前に、電池パック５の風窓５ｂから電池パック５内に吸い込まれ、電池パック５内の電池セル５ｃ等を冷却し、風窓５ａから排気され、風窓７から充電装置１Ｂ内に吸い込まれる。 The fan 15 and the fan 16 generate a first air flow k1 and a second air flow k2. The first air flow k <b> 1 is sucked from the wind window 7, flows toward the wind window 6 without passing through the charging circuit components on the substrate 4, and is exhausted from the wind window 6. The second air flow k2 is drawn from the wind window 7, branches from the first air flow k1, passes through the charging circuit components on the substrate 4 (cools the charging circuit components), flows toward the wind window 8, and from the wind window 8. Exhausted. As shown in FIG. 8, the first air flow k1 and the second air flow k2 are sucked into the battery pack 5 from the wind window 5b of the battery pack 5 before being sucked from the wind window 7, and the battery cells 5c in the battery pack 5 and the like. Is cooled, exhausted from the wind window 5a, and sucked into the charging device 1B from the wind window 7.
本実施の形態によれば、２つのファン１５,１６によって発生した強力かつ新鮮な気流で電池パック５を冷却するため、電池パック５の冷却効率が高められる。また、電池パック５を冷却後の第２気流ｋ２によって基板４上の充電用回路部品も冷却するため、充電用回路部品の発熱にも好適に対処できる。また、防水面では実施の形態１と同様の効果を奏することができる。 According to the present embodiment, since the battery pack 5 is cooled by the strong and fresh air flow generated by the two fans 15 and 16, the cooling efficiency of the battery pack 5 is enhanced. In addition, since the charging circuit components on the substrate 4 are also cooled by the second air flow k2 after the battery pack 5 is cooled, it is possible to suitably cope with heat generation of the charging circuit components. In addition, the same effect as in the first embodiment can be obtained on the waterproof surface.
実施の形態３　図９は、本発明の実施の形態３に係る充電装置１Ｃに電池パック５を装着した状態の正断面図である。充電装置１Ｃは、図７に示した実施の形態２の充電装置１Ｂからファン１５を無くしたものに相当する。本実施の形態では、風窓６は第１吸気口であり、風窓７は第２吸気口であり、風窓８は排気口である。ファン１６は、第１気流ｋ１及び第２気流ｋ２を発生する。第１気流ｋ１は、風窓７から吸い込まれ、基板４上の充電用回路部品を通り（充電用回路部品を冷却し）、風窓８に向かって流れ、風窓８から排気される。第１気流ｋ１は、風窓７から吸い込まれる前に、実施の形態２（図８）と同様に、電池パック５を冷却する。第２気流ｋ２は、風窓６から吸い込まれ、ファン１６の吸込み側（風窓７の下方の空間）で第１気流ｋ１と合流し、基板４上の充電用回路部品を通り（充電用回路部品を冷却し）、風窓８に向かって流れ、風窓８から排気される。 Embodiment 3 FIG. 9 is a front sectional view of a state where battery pack 5 is mounted on charging device 1C according to Embodiment 3 of the present invention. Charging device 1C corresponds to a device in which fan 15 is eliminated from charging device 1B according to the second embodiment shown in FIG. In the present embodiment, the wind window 6 is a first intake port, the wind window 7 is a second intake port, and the wind window 8 is an exhaust port. The fan 16 generates a first air flow k1 and a second air flow k2. The first air flow k1 is drawn from the wind window 7, passes through the charging circuit components on the substrate 4 (cools the charging circuit components), flows toward the wind window 8, and is exhausted from the wind window 8. The first air flow k1 cools the battery pack 5 in the same manner as in the second embodiment (FIG. 8) before being sucked from the wind window 7. The second air flow k2 is sucked in from the wind window 6, merges with the first air flow k1 on the suction side of the fan 16 (the space below the wind window 7), passes through the charging circuit components on the substrate 4 (the charging circuit components are passed through The air flows toward the wind window 8 and is exhausted from the wind window 8.
本実施の形態によれば、第１気流ｋ１によって電池パック５を冷却しつつ、電池パック５を冷却していない第２気流ｋ２を第１気流ｋ１と合流させて基板４上の充電用回路部品の冷却に利用するため、電池パック５を冷却した後の気流のみで充電用回路部品を冷却する場合と比較して、充電用回路部品の冷却効率を高めることができる。また、第１気流ｋ１及び第２気流ｋ２を単一のファン１６で発生させるため、実施の形態１と同様に、部品点数が少なくコスト安であり、小型化に有利である。また、防水面においても実施の形態１と同様の効果を奏することができる。 According to the present embodiment, the circuit component for charging on the substrate 4 is formed by merging the second airflow k2 that has not cooled the battery pack 5 with the first airflow k1 while cooling the battery pack 5 with the first airflow k1. Therefore, the cooling efficiency of the charging circuit component can be increased as compared with the case where the charging circuit component is cooled only by the airflow after the battery pack 5 is cooled. Further, since the first air flow k1 and the second air flow k2 are generated by the single fan 16, the number of parts is small and the cost is low as in the first embodiment, which is advantageous for downsizing. In addition, the same effect as that of the first embodiment can be obtained on the waterproof surface.
実施の形態４　図１０は、本発明の実施の形態４に係る充電装置１Ｄに電池パック５を装着した状態の正断面図である。充電装置１Ｄは、図９に示した実施の形態３のものと比較して、ファン１７が追加され、下ケース３の風窓８が上ケース２に風窓９に替わった点で相違し、その他の点で一致する。ファン１７は、基板４上の充電用回路部品を挟んでファン１６の反対側に設けられ、図１０の右方（充電用回路部品側）から空気を吸い込んで左方風窓９側に送り出すように、下ケース３によって保持される。本実施の形態によれば、ファンが２つになったことにより、実施の形態３と比較して部品点数は増加するが、冷却風の風量を増大させることができる。また、排気口となる風窓９が充電装置１Ｄの上部に設けられるため、充電用回路部品の上部を重点的に冷却できる。 Embodiment 4 FIG. 10 is a front sectional view of a state where battery pack 5 is attached to charging device 1D according to Embodiment 4 of the present invention. The charging device 1D is different from that of the third embodiment shown in FIG. 9 in that a fan 17 is added and the wind window 8 of the lower case 3 is replaced with the wind window 9 in the upper case 2. Match on a point. The fan 17 is provided on the opposite side of the fan 16 with the charging circuit component on the board 4 interposed therebetween, and sucks air from the right side (charging circuit component side) in FIG. 10 and sends it out to the left wind window 9 side. It is held by the lower case 3. According to the present embodiment, since the number of fans is increased, the number of parts is increased as compared with the third embodiment, but the amount of cooling air can be increased. Moreover, since the wind window 9 used as an exhaust port is provided in the upper part of charging device 1D, the upper part of the circuit component for charging can be cooled preferentially.
実施の形態５　図１１は、本発明の実施の形態５に係る充電装置１Ｅに電池パック５を装着した状態の正断面図である。充電装置１Ｅは、図６に示した実施の形態１のものと比較して、ファン１６が追加され、下ケース３に吸気口となる風窓１０が追加された点で相違し、その他の点で一致する。ファン１６は、図９に示した実施の形態３と同様の配置である。ファン１５及びファン１６は、第１気流ｋ１及び第２気流ｋ２を発生する。第１気流ｋ１は、風窓６から吸い込まれ、ファン１５及びファン１６の吸込み側において第２気流ｋ２と合流し、一部は基板４上の充電用回路部品を通り（充電用回路部品を冷却し）、風窓８に向かって流れ、風窓８から排気され、残りは基板４上の充電用回路部品を通らずに風窓７に向かって流れ、風窓７から排気される。第２気流ｋ２は、風窓１０から吸い込まれ、ファン１５及びファン１６の吸込み側において第１気流ｋ１と合流し、一部は基板４上の充電用回路部品を通らずに風窓７に向かって流れ、風窓７から排気され、残りは基板４上の充電用回路部品を通り（充電用回路部品を冷却し）、風窓８に向かって流れ、風窓８から排気される。本実施の形態によれば、２つのファン１５,１６によって発生した強力かつ新鮮な気流で電池パック５及び基板４上の充電用回路部品を冷却するため、電池パック５及び充電用回路部品の冷却効率が高められる。また、防水面では実施の形態１と同様の効果を奏することができる。 Embodiment 5 FIG. 11 is a front sectional view of a state where battery pack 5 is mounted on charging device 1E according to Embodiment 5 of the present invention. The charging device 1E is different from that of the first embodiment shown in FIG. 6 in that a fan 16 is added and a wind window 10 serving as an air inlet is added to the lower case 3, and the other points are different. Match. The fan 16 has the same arrangement as that of the third embodiment shown in FIG. The fan 15 and the fan 16 generate a first air flow k1 and a second air flow k2. The first air flow k1 is sucked from the wind window 6 and merges with the second air flow k2 on the suction side of the fan 15 and the fan 16, and a part passes through the charging circuit components on the substrate 4 (cools the charging circuit components). ), Flows toward the wind window 8 and is exhausted from the wind window 8, and the rest flows toward the wind window 7 without passing through the charging circuit components on the substrate 4 and is exhausted from the wind window 7. The second air flow k2 is sucked from the wind window 10 and merges with the first air flow k1 on the suction side of the fan 15 and the fan 16, and a part flows toward the wind window 7 without passing through the charging circuit components on the substrate 4. The air is exhausted from the wind window 7, and the rest passes through the charging circuit component on the substrate 4 (cools the charging circuit component), flows toward the wind window 8, and is exhausted from the wind window 8. According to the present embodiment, the battery pack 5 and the charging circuit components on the substrate 4 are cooled by the strong and fresh air flow generated by the two fans 15 and 16, so that the battery pack 5 and the charging circuit components are cooled. Efficiency is increased. In addition, the same effect as in the first embodiment can be obtained on the waterproof surface.
実施の形態６　図１２は、本発明の実施の形態６に係る充電装置１Ｆに電池パック５を装着した状態の正断面図である。充電装置１Ｆは、図１１に示した実施の形態５のものと比較して、第１気流ｋ１及び第２気流ｋ２がリブ１２によってガイドされて互いに分離している（独立している）点で相違し、その他の点で一致する。ファン１５及びファン１６は、第１気流ｋ１及び第２気流ｋ２を発生する。第１気流ｋ１は、風窓６から吸い込まれ、基板４上の充電用回路部品を通り（充電用回路部品を冷却し）、風窓８に向かって流れ、風窓８から排気される。第２気流ｋ２は、風窓１０から吸い込まれ、基板４上の充電用回路部品を通らずに風窓７に向かって流れ、風窓７から排気される。本実施の形態によれば、２つのファン１５,１６によって発生した強力かつ新鮮な気流で電池パック５及び基板４上の充電用回路部品を冷却するため、電池パック５及び充電用回路部品の冷却効率が高められる。また、防水面では実施の形態１と同様の効果を奏することができる。 Embodiment 6 FIG. 12 is a front sectional view of a state where battery pack 5 is attached to charging device 1F according to Embodiment 6 of the present invention. Charging device 1F is different from that of the fifth embodiment shown in FIG. 11 in that first air flow k1 and second air flow k2 are guided by rib 12 and separated from each other (independent). Dissimilar and otherwise consistent. The fan 15 and the fan 16 generate a first air flow k1 and a second air flow k2. The first air flow k1 is sucked from the wind window 6, passes through the charging circuit components on the substrate 4 (cools the charging circuit components), flows toward the wind window 8, and is exhausted from the wind window 8. The second air flow k <b> 2 is sucked from the wind window 10, flows toward the wind window 7 without passing through the charging circuit components on the substrate 4, and is exhausted from the wind window 7. According to the present embodiment, the battery pack 5 and the charging circuit components on the substrate 4 are cooled by the strong and fresh air flow generated by the two fans 15 and 16, so that the battery pack 5 and the charging circuit components are cooled. Efficiency is increased. In addition, the same effect as in the first embodiment can be obtained on the waterproof surface.
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。 The present invention has been described above by taking the embodiment as an example. However, 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. By the way. Hereinafter, modifications will be described.
図７、図１１及び図１２の構成において、ファン１５及びファン１６に替えて例えば斜め配置の単一の遠心ファンを用いることで、単一ファンによって第１気流ｋ１及び第２気流ｋ２を発生させてもよい。この場合、冷却風の風量は落ちるが部品点数を削減できる。図１１及び図１２において、ファン１５及びファン１６の向きを反転させ、風窓７,８が吸気口、風窓６,１０が排気口になるように構成してもよい。 7, 11, and 12, the first air flow k <b> 1 and the second air flow k <b> 2 are generated by a single fan by using, for example, a single centrifugal fan disposed obliquely instead of the fan 15 and the fan 16. May be. In this case, the number of parts can be reduced although the air volume of the cooling air is reduced. 11 and 12, the direction of the fan 15 and the fan 16 may be reversed, and the wind windows 7 and 8 may be configured as intake ports and the wind windows 6 and 10 may be configured as exhaust ports.
１Ａ～１Ｆ…充電装置（充電器）、２…上ケース（上外枠）、２ａ…電池パック装着部、３…下ケース（下外枠）、３ａ…脚部、４…基板（メイン基板）、５…電池パック、５ａ,５ｂ…風窓、６～１０…風窓、１２～１４…リブ、１５～１７…ファン、２１…スイッチング素子、２２…フォトカプラ、２３…トランス、２４…ダイオード、２５～２７…放熱フィン、ｋ１…第１気流、ｋ２…第２気流 DESCRIPTION OF SYMBOLS 1A-1F ... Charger (charger), 2 ... Upper case (upper outer frame), 2a ... Battery pack mounting part, 3 ... Lower case (lower outer frame), 3a ... Leg part, 4 ... Board (main board) 5 ... Battery pack, 5a, 5b ... Wind window, 6-10 ... Wind window, 12-14 ... Rib, 15-17 ... Fan, 21 ... Switching element, 22 ... Photocoupler, 23 ... Transformer, 24 ... Diode, 25- 27 ... radiating fins, k1 ... first air flow, k2 ... second air flow

Claims (12)

  1. 下面に設置部を有し、上面に電池パック装着部を有するケースと、
    前記ケース内に設けられたファンと、
    前記ケース内に設けられた充電用回路部品と、を備え、
    前記ケースは、排気口並びに第１及び第２吸気口を有し、
    前記排気口は、前記電池パック装着部に臨み、
    前記ファンの発生する気流は、
    前記第１吸気口から吸い込まれて前記充電用回路部品を通らずに前記排気口に向かって流れる第１気流と、
    前記第２吸気口から吸い込まれて前記充電用回路部品を通り、前記第１気流と合流して前記排気口に向かって流れる第２気流と、を含むことを特徴とする、充電装置。     A case having an installation portion on the lower surface and a battery pack mounting portion on the upper surface;
    A fan provided in the case;
    A circuit component for charging provided in the case,
    The case has an exhaust port and first and second intake ports,
    The exhaust port faces the battery pack mounting part,
    The air flow generated by the fan is
    A first airflow sucked from the first air intake and flowing toward the exhaust without passing through the charging circuit component;
    A charging device comprising: a second airflow sucked from the second air intake port, passing through the charging circuit component, and joining the first airflow and flowing toward the exhaust port.
  2. 前記ファンは、前記電池パック装着部の下方に設けられ、
    前記第１吸気口は、前記ケースの下面に設けられて前記排気口と対向することを特徴とする、請求項１に記載の充電装置。     The fan is provided below the battery pack mounting portion,
    The charging device according to claim 1, wherein the first air inlet is provided on a lower surface of the case and faces the exhaust port.
  3. 前記充電用回路部品は、前記排気口と前記第１吸気口との間を避けた位置に設けられることを特徴とする、請求項１又は２に記載の充電装置。 The charging device according to claim 1, wherein the charging circuit component is provided at a position avoiding a space between the exhaust port and the first intake port.
  4. 下面に設置部を有し、上面に電池パック装着部を有するケースと、
    前記ケース内に設けられたファンと、
    前記ケース内に設けられた充電用回路部品と、を備え、
    前記ケースは、吸気口並びに第１及び第２排気口を有し、
    前記吸気口は、前記電池パック装着部に臨み、
    前記ファンの発生する気流は、
    前記吸気口から吸い込まれて前記充電用回路部品を通らずに前記第１排気口に向かって流れる第１気流と、
    前記吸気口から吸い込まれて前記第１気流から分岐し、前記充電用回路部品を通って前記第２排気口に向かって流れる第２気流と、を含むことを特徴とする、充電装置。     A case having an installation portion on the lower surface and a battery pack mounting portion on the upper surface;
    A fan provided in the case;
    A circuit component for charging provided in the case,
    The case has an intake port and first and second exhaust ports,
    The air inlet faces the battery pack mounting part,
    The air flow generated by the fan is
    A first airflow that is drawn from the inlet and flows toward the first outlet without passing through the charging circuit component;
    A charging device comprising: a second airflow that is sucked from the intake port and branched from the first airflow, and flows toward the second exhaust port through the charging circuit component.
  5. 前記ファンは、前記電池パック装着部の下方に設けられた単一ファンであり、
    前記第１排気口は、前記ケースの下面に設けられて前記吸気口と対向することを特徴とする、請求項４に記載の充電装置。     The fan is a single fan provided below the battery pack mounting portion,
    The charging device according to claim 4, wherein the first exhaust port is provided on a lower surface of the case and faces the intake port.
  6. 前記充電用回路部品は、前記吸気口と前記第１排気口との間を避けた位置に設けられることを特徴とする、請求項４又は５に記載の充電装置。 6. The charging device according to claim 4, wherein the charging circuit component is provided at a position avoiding a space between the intake port and the first exhaust port.
  7. 前記ファンは、前記気流内において、前記吸気口と前記第１排気口との間に設けられた第１ファンと、前記吸気口と前記第２排気口との間に設けられた第２ファンと、を有することを特徴とする、請求項４乃至６の何れか一項に記載の充電装置。 The fan includes a first fan provided between the intake port and the first exhaust port, and a second fan provided between the intake port and the second exhaust port in the airflow. The charging device according to any one of claims 4 to 6, characterized by comprising:
  8. 下面に設置部を有し、上面に電池パック装着部を有するケースと、
    前記ケース内に設けられたファンと、
    前記ケース内に設けられた充電用回路部品と、を備え、
    前記ケースは、第１及び第２吸気口並びに排気口を有し、
    前記第１吸気口は、
    前記電池パック装着部に臨み、
    前記ファンの発生する気流は、前記第１吸気口から吸い込まれて前記充電用回路部品を通って前記排気口に向かって流れる第１気流と、
    前記第２吸気口から吸い込まれて前記第１気流と合流し、前記充電用回路部品を通って前記排気口に向かって流れる第２気流と、を含むことを特徴とする、充電装置。     A case having an installation portion on the lower surface and a battery pack mounting portion on the upper surface;
    A fan provided in the case;
    A circuit component for charging provided in the case,
    The case has first and second intake ports and an exhaust port,
    The first air inlet is
    Facing the battery pack mounting part,
    The air flow generated by the fan is sucked from the first air intake port and flows through the charging circuit component toward the exhaust port,
    A charging device comprising: a second air flow sucked from the second air intake port, merged with the first air flow, and flowing toward the exhaust port through the charging circuit component.
  9. 前記第２吸気口は、前記ケースの下面に設けられて前記第１吸気口と対向することを特徴とする、請求項８に記載の充電装置。 The charging device according to claim 8, wherein the second air inlet is provided on a lower surface of the case and faces the first air inlet.
  10. 前記充電用回路部品は、前記第１及び第２吸気口の間を避けた位置に設けられることを特徴とする、請求項８又は９に記載の充電装置。 10. The charging device according to claim 8, wherein the charging circuit component is provided at a position avoiding a space between the first and second intake ports. 11.
  11. 下面に設置部を有し、上面に電池パック装着部を有するケースと、
    前記ケース内に設けられた単一のファンと、
    前記ケース内に設けられた充電用回路部品と、を備え、
    前記ケースは、第１及び第２吸気口並びに第１及び第２排気口を有し、
    前記第１吸気口又は前記第１排気口は、前記電池パック装着部に臨み、
    前記ファンの発生する気流は、前記第１及び第２吸気口からそれぞれ吸い込まれ、互いに合流し、一部は前記充電用回路部品を通らずに前記第１排気口に向かって流れ、残りは前記充電用回路部品を通って前記第２排気口に向かって流れることを特徴とする、充電装置。     A case having an installation portion on the lower surface and a battery pack mounting portion on the upper surface;
    A single fan provided in the case;
    A circuit component for charging provided in the case,
    The case has first and second intake ports and first and second exhaust ports,
    The first intake port or the first exhaust port faces the battery pack mounting portion,
    The airflow generated by the fan is sucked from the first and second intake ports, merges with each other, part flows toward the first exhaust port without passing through the charging circuit component, and the rest A charging device, wherein the charging device flows through the charging circuit component toward the second exhaust port.
  12. 下面に設置部を有し、上面に電池パック装着部を有するケースと、
    前記ケース内に設けられた単一のファンと、
    前記ケース内に設けられた充電用回路部品と、を備え、
    前記ケースは、第１及び第２吸気口並びに第１及び第２排気口を有し、
    前記第１吸気口又は前記第１排気口は、前記電池パック装着部に臨み、
    前記ファンの発生する気流は、
    前記第１吸気口から吸い込まれて前記充電用回路部品を通らずに前記第１排気口に向かって流れる第１気流と、
    前記第２吸気口から吸い込まれて前記充電用回路部品を通って前記第２排気口に向かって流れる第２気流と、を含み、前記第１及び第２気流が互いに独立して流れることを特徴とする、充電装置。     A case having an installation portion on the lower surface and a battery pack mounting portion on the upper surface;
    A single fan provided in the case;
    A circuit component for charging provided in the case,
    The case has first and second intake ports and first and second exhaust ports,
    The first intake port or the first exhaust port faces the battery pack mounting portion,
    The air flow generated by the fan is
    A first airflow sucked from the first air inlet and flowing toward the first air outlet without passing through the charging circuit component;
    A second air flow sucked from the second air intake port and flowing toward the second exhaust port through the charging circuit component, wherein the first air flow and the second air flow flow independently of each other. And a charging device.
PCT/JP2017/016969 2016-05-31 2017-04-28 Charging device WO2017208710A1 (en)

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JP2022140486A (en) 2022-09-26
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JP2021078353A (en) 2021-05-20
JP6835084B2 (en) 2021-02-24

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