WO2024058242A1 - Dispositif d'alimentation électrique - Google Patents

Dispositif d'alimentation électrique Download PDF

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Publication number
WO2024058242A1
WO2024058242A1 PCT/JP2023/033491 JP2023033491W WO2024058242A1 WO 2024058242 A1 WO2024058242 A1 WO 2024058242A1 JP 2023033491 W JP2023033491 W JP 2023033491W WO 2024058242 A1 WO2024058242 A1 WO 2024058242A1
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WO
WIPO (PCT)
Prior art keywords
power
converter
power conversion
battery
internal connection
Prior art date
Application number
PCT/JP2023/033491
Other languages
English (en)
Japanese (ja)
Inventor
邦明 生井
勤 高橋
秀史 二川
Original Assignee
本田技研工業株式会社
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 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Publication of WO2024058242A1 publication Critical patent/WO2024058242A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • 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
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • 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
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/40—Wall-mounted casings; Parts thereof or accessories therefor
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/03—Covers

Definitions

  • the present invention relates to a power device.
  • This application claims priority based on Japanese Patent Application No. 2022-146099 filed on September 14, 2022, the contents of which are incorporated herein.
  • Patent Document 1 discloses the configuration of a power device that can charge a battery.
  • a slot for removably accommodating a plurality of batteries is provided at the bottom of the power device.
  • a control device and the like that control charging and discharging of the battery, etc. are housed in the upper stage of the power device.
  • each slot is provided with a door that rotates with respect to the slot in response to insertion and removal of the battery, inside the insertion opening into which the battery is inserted. It is said that this makes it possible to easily insert and remove the battery.
  • a power converter such as a battery charging converter is conventionally arranged adjacent to a plurality of battery slots.
  • the power converter since the power converter is disposed between the battery slots, as the number of battery slots increases, the power device tends to increase in size in the lateral direction. For this reason, when a user wants to replace a plurality of batteries, it is necessary for the user to move laterally while holding the batteries, and there is room for improvement in terms of convenience. Furthermore, by increasing the size in the horizontal direction, there was a risk that the installation footprint would become larger.
  • an object of the present invention is to provide a power device that can improve convenience for the user compared to the conventional technology while suppressing the increase in size.
  • a power device includes an external power supply connection part that is electrically connected to an external power supply, a casing, and an internal connection that is connected to a power storage unit arranged inside the casing. and a power conversion section provided on a power transmission path that electrically connects the external power supply connection section and the internal connection section, and the internal connection section is connected to a first power storage section of the power storage section. and a second internal connection part to which a second power storage unit different from the first power storage unit is connected, and the power converter includes a first internal connection part to which the external power supply connection part and the second power storage part are connected.
  • a second power conversion section provided on the transmission path.
  • the first internal connection part and the second internal connection part may be arranged close to each other in a first region inside the casing,
  • the first power converter and the second power converter may be arranged close to each other in a second region inside the housing that is different from the first region.
  • the first power conversion section is connected to the first internal connection section, and the second power conversion section is connected to the second internal connection section;
  • the device may further include a fixing portion that collectively fixes the devices to the housing.
  • the power device according to (3) above may further include another power conversion section disposed closer to the external power supply connection section than the power conversion section on the power transmission path, In addition to the first power converter and the second power converter, the fixing section may fix the other power converter all at once.
  • the power device according to (3) or (4) above may further include a detection section capable of detecting whether or not the fixing section is fixed.
  • the power conversion section includes a power conversion section main body and a housing section that removably accommodates the power conversion section main body. , may have.
  • the power conversion section is provided in a main body side connection section provided in the power conversion section main body and in the accommodating section, and is removably connected to the main body side connection section. and an accommodating part side connection part to be connected.
  • the accommodating section includes a first accommodating section that accommodates the first power converting section, a first accommodating section that accommodates the second power converting section, and a first accommodating section that accommodates the second power converting section.
  • the storage unit may include a second storage unit provided adjacent to the first storage unit.
  • the housing may have a protrusion that protrudes toward the inside where the power conversion unit main body is housed, and the power conversion unit main body may have a notch formed to avoid interference with the protrusion when housed in the housing in the correct orientation, and to allow interference between the protrusion and the power conversion unit main body when housed in the housing in the incorrect orientation.
  • the power device including an upper cover that allows the second area to be opened, and a front cover that covers the front surface of the casing at a position corresponding to the first area.
  • the front cover may further include a plurality of fitting parts that fit with fitting parts provided on the housing, and the front cover may be opened when the upper cover is open. It may be possible to fit or release the plurality of fitting parts all at once by moving the fitting parts.
  • the power device includes an external power supply connection section, a casing, an internal connection section, and a power conversion section.
  • An internal connection section including a first internal connection section, a second internal connection section, etc., and a power conversion section including a first power conversion section, a second power conversion section, etc. are arranged as separate parts (in different areas). be done.
  • the work area is narrowed for a user who is working on the power conversion section, for example, so that the effort of moving etc. can be saved.
  • multiple internal connection sections such as the first internal connection section, first power conversion section, second internal connection section, second power conversion section, etc.
  • maintenance work on the power conversion portion can be performed more easily.
  • the internal connection section and the power conversion section are arranged vertically, it is possible to suppress the increase in size, especially in the lateral direction, compared to the conventional technology in which the power conversion section is arranged between multiple battery slots. .
  • the installation footprint of the power device can be reduced. Furthermore, even when the user replaces a plurality of power storage units, there is no need for the user to move laterally, so convenience for the user who performs work related to the internal connection unit can be improved. Furthermore, by providing the internal connection section and the power conversion section separately, for example, the cover cannot be opened by a user working on the internal connection section, and can only be opened by a maintenance worker working on the power conversion section. It can be configured to have a key, key, etc. Furthermore, since a plurality of power conversion units are housed together, it is possible to configure a configuration in which these units are cooled together. This can also suppress an increase in cooling costs. Therefore, it is possible to provide a power device that can suppress increase in size and improve user convenience compared to conventional techniques.
  • the first internal connection part and the second internal connection part are arranged close to each other in the first region, and the first power conversion part and the second power conversion part are arranged in the first region. are arranged close to each other in a second region different from the region.
  • the power converter when the second region is provided above the first region, the power converter is located relatively above, making it easier to perform maintenance work on the power converter.
  • the first internal connection and the second internal connection are arranged close to each other. This allows the first region to be made smaller.
  • the first power converter and the second power converter are arranged close to each other. This allows the second region to be made smaller. Therefore, it is possible to suppress the increase in size of the power device. Furthermore, since each area can be stored compactly, convenience can be improved for both users who work on the internal connection section and users who work on the power conversion section.
  • the fixing section fixes the first power conversion section and the second power conversion section together to the housing.
  • each power converter can be easily fixed to the housing. Therefore, compared to the case where a fixing part is provided for each of a plurality of power converters, the work related to fixing the power converters can be simplified and user convenience can be improved. Furthermore, an increase in cost can be suppressed compared to the case where a plurality of fixing parts are provided.
  • the fixing part fixes the first power converter, the second power converter, and other power converters all at once.
  • various power converters can be easily fixed to the housing. Therefore, compared to, for example, a case where a fixed part is provided for each of the power converter and another power converter, convenience for the user can be further improved. Furthermore, an increase in cost can be suppressed compared to the case where a plurality of fixing parts are provided.
  • the power device further includes a detection section capable of detecting whether or not the fixed section is fixed. Thereby, forgetting to tighten the fixing portion can be suppressed. Furthermore, it is possible to control, for example, switching between energization and power cutoff of the internal power conversion section according to the detection result of the detection section. Therefore, user convenience can be further improved.
  • the power conversion unit includes a power conversion unit main body and a housing portion that removably accommodates the power conversion unit main body.
  • a plurality of power converters can be housed at once. Since the power converter main body can be arranged in an organized manner, the maintainability of the power converter can be improved.
  • the power conversion section main body is provided with the main body side connection part
  • the accommodating part is provided with the accommodating part side connection part.
  • the accommodating part side connection part is detachably connected to the main body side connection part.
  • the accommodating section includes a first accommodating section that accommodates the first power converting section and a second accommodating section that accommodates the second power converting section.
  • the second power conversion section is provided adjacent to the first housing section.
  • the accommodating portion is provided with a protrusion
  • the power conversion unit main body is provided with a notch that corresponds to the protrusion.
  • the notch is formed to avoid interference with the protrusion when the power converter main body is stored in the housing part in the correct orientation, and to avoid interference with the protrusion when the power conversion unit main body is stored in the housing part in the wrong orientation. Ru.
  • the structure includes protrusions and notches, for example, if the power converter main body is housed in the housing part in the wrong direction, the protrusions and the power converter body will interfere and the power converter body will not pop out of the housing part. become. This makes it easier to visually see that incorrect assembly has occurred. Therefore, convenience for the user who assembles the power converter can be further improved.
  • the second region can be opened or closed by opening and closing the upper cover.
  • the upper cover Since the upper cover is provided so that only the second area can be opened and closed, it cannot be opened by general users who work on internal connections, for example, and can only be opened and closed by users (maintenance workers) who perform maintenance on the power conversion unit. It can be configured as follows. This increases safety and improves the workability of maintenance workers.
  • the first area can be opened or closed by opening and closing the front cover. Thereby, by opening the front cover, maintenance of the internal connection section provided in the first area can be performed.
  • the front cover has a plurality of mating parts that are mated with the mating parts of the casing, and by moving the front cover with the upper cover open, the plurality of mating parts can be mated or uncoupled all at once. It is now possible to do so. Thereby, the front cover can be easily opened and closed. Therefore, user convenience (maintainability) can be improved.
  • FIG. 1 is an explanatory diagram showing an example of a battery share service system according to an embodiment.
  • FIG. 1 is a perspective view of a battery exchange machine according to an embodiment.
  • FIG. 1 is a sectional view of a battery exchanger according to an embodiment.
  • FIG. 1 is a diagram showing an example of an electrical configuration of a battery exchanger according to an embodiment. The figure which shows an example of the electrical structure of the DC/DC converter for charge.
  • FIG. 3 is a diagram showing the internal configuration of a second area of the battery exchanger.
  • FIG. 3 is an enlarged perspective view of the second region.
  • FIG. 8 is a diagram showing a state in which the pressing member is removed from FIG. 7; Exploded view of the power supply unit.
  • FIG. 8 is a diagram showing a state in which the pressing member is removed from FIG. 7; Exploded view of the power supply unit.
  • FIG. 3 is an enlarged perspective view of the upper portion of the DC/DC converter group. A perspective view of the storage case seen from the rear.
  • FIG. 3 is an exploded perspective view of the front cover. An enlarged view of part XIII in FIG. 12. A perspective view of the front cover seen from the rear (back side). An enlarged view of section XV in FIG. 14.
  • FIG. 3 is a sectional view showing a fitting portion of the front cover. An enlarged view of section XVII in FIG. 16.
  • the front side as seen from the user using the battery exchanger 1 may be referred to as the front, the back side as the rear, the right hand side as the right, and the left hand side as the left.
  • FIG. 1 is an explanatory diagram showing an example of a battery share service system 100 according to an embodiment.
  • the battery share service system 100 includes one or more (for example, a plurality of) battery exchange stations 200 (four battery exchange stations 200-1 to 200-4 are shown in FIG. 1) and a management server device 300.
  • the battery exchange station 200 includes, for example, one or more battery exchange machines 1 (power device in the claims) (three battery exchange machines 1a, 1b, 1c are shown in FIG. 1). At least one of the plurality of battery exchangers 1 (battery exchanger 1c in FIG. 1) also serves as the station control device 210.
  • the station control device 210 and the battery exchanger 1 can communicate by wire or wirelessly.
  • the station control device 210 and the battery exchanger 1 may be configured integrally as one device instead of as separate devices.
  • the station control device 210 manages the charging and discharging of the battery 3 in the battery exchanger 1, and the reception and provision of the battery 3 (hereinafter referred to as "replacement of the battery 3").
  • the battery 3 is a removable battery that can be attached to and detached from the battery exchanger 1 .
  • Station control device 210 provides information for replacing battery 3 to the user of electric vehicle 400 when the user uses battery replacement station 200 .
  • the station control device 210 may provide information indicating a battery slot 27 that receives a battery 3 that has been used in the electric vehicle 400 and has a low remaining capacity, or a slot that accommodates another battery 3 to be provided in place of the received battery 3.
  • the user is provided with information indicating which battery slot 27 is currently installed. Battery slot 27 accommodates at least a portion of battery 3.
  • the battery exchanger 1 stores the battery 3 by accommodating the battery 3 in the battery slot 27.
  • the battery exchanger 1 is a device that charges/discharges and replaces the battery 3.
  • the battery exchanger 1 has one or more (for example, a plurality of) battery slots 27.
  • the battery slot 27 is an accommodating part that accommodates the battery 3 and can charge and discharge it.
  • the battery slot 27 removably holds the battery 3.
  • one battery exchanger 1 has 12 battery slots 27 and can accommodate 12 batteries 3 at the same time.
  • the battery exchanger 1 can simultaneously charge a plurality of batteries 3 (in the example shown in FIG. 1, a maximum of 12 batteries 3) housed in a plurality of battery slots 27.
  • a plurality of batteries 3 in the example shown in FIG. 1, a maximum of 12 batteries housed in a plurality of battery slots 27.
  • “simultaneous charging” or “simultaneous charging” is not limited to the case where charging of a plurality of batteries 3 is started at the same time, and includes a part of the charging time of one battery 3 and a charging time of another battery 3. This also includes cases where some of the above occur at the same time.
  • Power is supplied to the battery exchanger 1 from an external power source 500.
  • the external power supply 500 is, for example, a 100V AC commercial power supply.
  • the battery exchanger 1 charges the battery 3 received from the user of the electric vehicle 400 under the control of the station control device 210 .
  • the battery exchanger 1 transmits a notification indicating that charging is completed to the station control device 210.
  • station control device 210 recognizes battery 3 that can be provided to the user of electric vehicle 400.
  • the battery exchanger 1 may discharge the power remaining in the battery 3.
  • the management server device 300 is connected to the network NW.
  • the network NW includes, for example, one or more of the Internet, a cellular network, a Wi-Fi network, a WAN (Wide Area Network), a LAN (Local Area Network), and the like.
  • the management server device 300 communicates with the plurality of battery exchange stations 200 via the network NW and manages the plurality of battery exchange stations 200.
  • the management server device 300 receives information indicating the status of the battery exchange station 200 (hereinafter referred to as "status information") from each battery exchange station 200, and determines the status of each battery exchange station 200 based on the status information. .
  • the management server device 300 communicates directly or via the network NW with the terminal device T1 used by the administrator P1 who manages the battery share service system 100, and sends a predetermined notification regarding the status of the battery exchange station 200 to the terminal device T1. Output to.
  • the terminal device T1 is a stationary or notebook personal computer.
  • the management server device 300 communicates with the terminal device T2 used by the security personnel P2 in charge of maintaining the battery exchange station 200 via the network NW, and sends a predetermined notification regarding the status of the battery exchange station 200 to the terminal device T2. Output.
  • the terminal device T2 is, for example, a portable terminal device, such as a smartphone or a tablet terminal.
  • Electric vehicle 400 travels with the driving force of an electric motor (electric motor) driven by electric power supplied from battery 3 .
  • the electric vehicle 400 may be a hybrid electric vehicle that runs using a driving force that is a combination of the battery 3 and an internal combustion engine such as a diesel engine or a gasoline engine.
  • Electric vehicle 400 includes, for example, a battery connection section (not shown) to which battery 3 is connected. Note that in this embodiment, the electric vehicle 400 is used as an example of the place where the charged battery 3 is used, but the use is not limited thereto.
  • the battery exchanger 1 may be capable of charging mobile batteries used for various portable purposes.
  • FIG. 2 is a perspective view of the battery exchanger 1 according to the embodiment.
  • FIG. 3 is a sectional view of the battery exchanger 1 according to the embodiment.
  • the battery exchanger 1 includes a casing 2, a battery 3 (power storage unit in the claims), an external power connection unit 4, an internal connection unit 5, a power transmission path 6, a power supply unit 7, and an upper cover 8. , and a front cover 9.
  • the housing 2 is, for example, formed in the shape of a vertically long rectangular parallelepiped. Specifically, the housing 2 includes a lower wall 21, a front wall 22 (front panel), a rear wall 23, a left side wall 24, and a right side wall 25.
  • the lower wall 21 is installed on the floor.
  • the front wall 22, the rear wall 23, the left side wall 24, and the right side wall 25 stand up from the front end, rear end, left end, and right end of the lower wall 21, respectively, and extend in the vertical direction.
  • the top surface of the casing 2 is open, and more specifically, the top surface of the casing 2 is closed or opened by an upper cover 8, which will be described later.
  • the rear wall 23, right side wall 25, and left side wall 24 have the same height from the floor.
  • the front wall 22 has a lower height from the floor than the rear wall 23, the right side wall 25, and the left side wall 24.
  • the corner portions 26 located above and in front of the right side wall 25 and the left side wall 24 are formed in an arc shape that curves downward toward the front when viewed from the side of the battery exchanger 1. This makes it easier for a user standing in front of the front wall 22 to see the inside of the housing 2 and to perform maintenance on the power supply device 72.
  • the front wall 22 is provided with an opening (battery exchange port 28) that exposes the battery slot 27 provided inside the housing 2 to the outside of the housing 2.
  • the 12 battery slots 27 are arranged in a matrix of three rows in the horizontal direction and four stages in the vertical direction.
  • the battery 3 is placed inside the housing 2 by being inserted into the battery slot 27 from the battery exchange port 28 .
  • the battery 3 inserted into the battery slot 27 generates heat as it is charged by the battery exchanger 1.
  • the front wall 22 and the rear wall 23 are provided with a plurality of intake ports and exhaust ports (both not shown) for ventilating the air rising due to this heat generation.
  • the intake port and the exhaust port communicate the inside and outside of the housing 2.
  • a fan (not shown) may be provided near the intake port and the exhaust port.
  • the housing 2 may additionally include a cooling device that discharges cooled air into the housing 2.
  • the battery slot 27 opens at the front of the battery exchanger 1.
  • the battery slot 27 is arranged so as to be inclined downward as it goes from the front side to the back side. In other words.
  • the battery exchange port 28 of the battery slot 27 opens obliquely upward. Thereby, when the user inserts the battery 3 into the battery slot 27, the user can take a forward leaning posture. Therefore, it becomes easier to insert the battery 3 into the battery slot 27.
  • a front panel 29 and an operation panel 30 integrally formed with the front panel 29 are provided above the battery slot 27 of the front wall 22.
  • the front panel 29 is formed into a mesh shape, for example.
  • the front panel 29 is provided at a position corresponding to a fan 34 (see FIG. 3) of the power supply unit 7, which will be described later, in the vertical direction, and allows heat generated from the power supply unit 7 to escape to the outside.
  • the operation panel 30 is integrally provided at the right end of the front panel 29.
  • the operation panel 30 is a device operated by a user. By operating the operation panel 30, the user pays a fee, for example.
  • the battery 3 inserted into the battery slot 27 includes, for example, an assembled battery in which a plurality of single cells are connected in series.
  • the single cells constituting the assembled battery are, for example, secondary batteries that can be repeatedly charged and discharged, such as lithium-ion batteries (LIB), nickel-metal hydride batteries, and all-solid-state batteries.
  • LIB lithium-ion batteries
  • nickel-metal hydride batteries nickel-metal hydride batteries
  • all-solid-state batteries As the secondary battery that constitutes the assembled battery, for example, in addition to a lead acid battery, a sodium ion battery, etc., a capacitor such as an electric double layer capacitor, or a composite battery that is a combination of a secondary battery and a capacitor can be considered.
  • a capacitor such as an electric double layer capacitor, or a composite battery that is a combination of a secondary battery and a capacitor can be considered.
  • the battery 3 includes a BMU, a connection part, etc. in addition to the assembled battery.
  • the BMU controls charging and discharging of the battery 3, performs cell balancing, detects an abnormality in the battery 3, and estimates the SOC of the battery 3.
  • the BMU includes a nonvolatile storage device that stores the state of the battery 3, which is determined based on the measurement results of various sensors, as state information.
  • the external power supply connection section 4 is electrically connected to an external power supply 500 of the battery exchanger 1. Power from an external power supply 500 is supplied to the battery exchanger 1 via the external power supply connection section 4 .
  • the internal connection part 5 is provided, for example, at the rear end of the battery slot 27.
  • the internal connection portion 5 is electrically connected to the battery 3 disposed inside the housing 2 .
  • the internal connection portion 5 is, for example, a plug (for example, a male connector) not shown.
  • the female connector of the battery 3 fits into the male connector. Thereby, by inserting the battery 3 into the battery slot 27, the battery 3 and the circuit inside the housing 2 (the power transmission path 6, which will be described in detail later) are electrically connected.
  • the internal connection part 5 has a total of 12 internal connection parts, first to twelfth.
  • the internal connection part 5 specifically includes a first internal connection part 5a, a second internal connection part 5b, a third internal connection part 5c, a fourth internal connection part 5d, and a fifth internal connection part 5a.
  • a first battery 3a (first power storage unit in the claims) among the plurality of batteries 3 is connected to the first internal connection portion 5a.
  • a second battery 3b (second power storage unit in the claims) among the plurality of batteries 3 is connected to the second internal connection portion 5b.
  • corresponding third to twelfth batteries 3c to 3 of the plurality of batteries 3 are connected to the third to twelfth internal connection parts 5c to 5l.
  • the first internal connection part 5a and the second internal connection part 5b are arranged close to each other in the first region 31 inside the housing 2.
  • "Arranged close to each other” means, for example, that the charging DC/DC converter corresponding to each battery slot 27 is arranged between the first internal connection part 5a and the second internal connection part 5b. It refers to being arranged at a closer position compared to the distance between the internal connecting part 5a and the second internal connecting part 5b.
  • the second internal connection part 5b and the third internal connection part 5c are arranged close to each other in the first region 31.
  • the first internal connection part 5a and the fourth internal connection part 5d located above the first internal connection part 5a are arranged close to each other in the first region 31.
  • all the internal connection parts 5 are arranged in a matrix of three rows in the horizontal direction and four stages in the vertical direction, depending on the position of each corresponding battery slot. It is located.
  • FIG. 4 is a diagram showing an example of the electrical configuration (power transmission path 6) of the battery exchanger 1 according to the embodiment. Solid lines in FIG. 4 indicate power lines (power cables, etc.). Broken lines in FIG. 4 indicate signal lines (communication cables, etc.).
  • the power transmission path 6 shown in FIGS. 3 and 4 is an electric circuit provided inside the housing 2, and electrically connects the external power source 500 and the internal connection section 5 via the external power connection section 4. . As shown in FIG. 4, the power transmission path 6 includes an AC/DC converter 61, a DC/DC converter group 62, a plurality of interface boards (IF boards 63), and a control board 64.
  • AC power is supplied to the AC/DC converter 61 from an external power supply 500.
  • AC/DC converter 61 converts AC power supplied from external power supply 500 into DC power, and supplies the converted DC power to DC/DC converter group 62 .
  • AC/DC converter 61 is electrically connected to battery 3 .
  • One AC/DC converter 61 is provided for each of the plurality of battery slots 27 (the plurality of batteries 3).
  • the AC/DC converter 61 is arranged to be able to simultaneously supply charging power to the plurality of batteries 3 housed in the plurality of battery slots 27 . That is, a plurality of battery slots 27 are connected to one AC/DC converter 61.
  • the DC/DC converter group 62 includes a plurality of charging DC/DC converters 66, a cooling DC/DC converter 67, and a control DC/DC converter 68.
  • the charging DC/DC converter 66 is provided in a one-to-one relationship with respect to the plurality of battery slots 27.
  • the plurality of charging DC/DC converters 66 are electrically connected in parallel to the AC/DC converter 61.
  • the battery 3 electrically connected to the charging DC/DC converter 66 is discharged to each charging DC/DC converter 66 or charged by the charging DC/DC converter 66 .
  • the charging DC/DC converter 66 is connected to the battery 3 housed in the battery slot 27 via the internal connection part 5 of the battery slot 27 .
  • the charging DC/DC converter 66 converts the DC power supplied from the AC/DC converter 61 into DC power having a voltage suitable for charging the battery 3, and supplies the converted DC power to the battery 3. .
  • the charging DC/DC converter 66 specifically includes a first charging DC/DC converter 66a, a second charging DC/DC converter 66b, and a third charging DC/DC converter 66a. 66c, a fourth charging DC/DC converter 66d, a fifth charging DC/DC converter 66e, a sixth charging DC/DC converter 66f, and a seventh charging DC/DC converter 66g. , an eighth charging DC/DC converter 66h, a ninth charging DC/DC converter 66i, a tenth charging DC/DC converter 66j, and an eleventh charging DC/DC converter 66k. , and a twelfth charging DC/DC converter 66l.
  • the first to twelfth charging DC/DC converters 66a to 66l correspond to the first to twelfth internal connection parts 5a to 5l, respectively.
  • the first charging DC/DC converter 66a is connected to the first battery 3a in correspondence with the first internal connection portion 5a.
  • FIG. 5 is a diagram showing an example of the electrical configuration of the charging DC/DC converter 66.
  • the charging DC/DC converter 66 includes, in more detail, a battery charging DC/DC converter 36 and a battery discharging DC/DC converter 37.
  • the DC/DC converter 36 for battery charging converts the DC power supplied from the AC/DC converter 61 into DC power having a voltage suitable for charging the battery 3.
  • DC power is supplied to the battery 3.
  • the DC/DC converter 37 for battery discharging converts the DC power supplied from the battery 3 into DC power having a voltage suitable for output to the control board 64, and Power is supplied to the control board 64.
  • a plurality of charging DC/DC converters 66 are provided according to the plurality of battery slots 27 (or the plurality of internal connection parts 5 connected thereto), but some of them (for example, in FIG.
  • the charging DC/DC converter 66-2) includes the above-described battery charging DC/DC converter 36 and battery discharging DC/DC converter 37.
  • the remaining charging DC/DC converters 66 (for example, the charging DC/DC converter 66-1 in FIG. 4) include only the battery charging DC/DC converter 36. That is, the plurality of charging DC/DC converters 66 include those having the DC/DC converter 37 for battery discharging and those not having the DC/DC converter 37 for battery discharging.
  • the cooling DC/DC converter 67 is connected to a heat exchange fan (for example, the fan 34 provided in the second region shown in FIG. 3), a condenser, and the like.
  • the cooling DC/DC converter 67 converts the DC power supplied from the AC/DC converter 61 into DC power having a voltage suitable for cooling systems such as fans and capacitors, and converts the converted DC power into an IF. It is supplied to the fan via the board 63.
  • a power detector is connected to the wiring between the IF board 63 and the fan.
  • the control DC/DC converter 68 is connected to the control board 64 which is the main control section of the power transmission path 6.
  • the control DC/DC converter 68 converts the DC power supplied from the AC/DC converter 61 into DC power having a voltage suitable for the control board 64, and transmits the converted DC power via the IF board 63. and supplies it to the control board 64.
  • the plurality of IF boards 63 are provided in a one-to-one relationship with respect to the plurality of battery slots 27.
  • the IF board 63 is provided at the rear end of the battery slot 27.
  • the IF board 63 is connected to the battery 3 housed in the battery slot 27 via the internal connection part 5 of the battery slot 27 .
  • the IF board 63 communicates with the battery 3 and acquires from the battery 3 information stored in the storage section of the BMU of the battery 3 (for example, status information of the battery 3, ID of the battery 3, etc.).
  • the IF board 63 outputs information acquired from the battery 3 to the control board 64.
  • the control board 64 controls the AC/DC converter 61, each DC/DC converter in the DC/DC converter group 62, and the plurality of IF boards 63.
  • the control board 64 controls field effect transistors (FETs) included in the AC/DC converter 61 according to the number of batteries 3 to be charged at the same time. control the amount of power applied.
  • FETs field effect transistors
  • substrate in the specification refers to a base on which components are mounted, and is not limited to a printed wiring board, but may also be a metal plate or the like.
  • the power supply unit 7 is arranged above the battery slot 27 inside the housing 2.
  • a partition wall 33 is provided inside the housing 2 .
  • the partition wall 33 is arranged above the plurality of battery slots 27 (the plurality of batteries 3).
  • the power supply unit 7 is placed on the partition wall 33 and is arranged above the plurality of battery slots 27.
  • the partition wall 33 divides the space inside the housing 2 into a first area 31 where the battery slot 27 and the internal connection part 5 of the battery 3 are provided, and a second area 32 where the power supply unit 7 is provided. It is divided into.
  • the first region 31 occupies more than half of the volume of the entire internal space of the housing 2 .
  • the above-mentioned intake port and exhaust port are provided at positions corresponding to the first region 31, and communicate the first region 31 with the external space.
  • the second region 32 is also provided with an intake port and an exhaust port that communicate the second region 32 and the external space.
  • FIG. 6 is a configuration diagram of the inside of the second area 32 of the battery exchanger 1.
  • FIG. 7 is an enlarged perspective view of the second region 32.
  • FIG. 8 is a diagram showing a state in which the pressing member 75 is removed from FIG. 7.
  • FIG. 9 is an exploded view of the power supply unit 7.
  • the power supply device unit 7 includes a storage case 71, a power supply device 72, a power conversion section 73, an erroneous insertion suppressing section 74, a holding member 75, and a fixing detection section 76 (not shown). (detection section).
  • the storage case 71 houses a power supply device 72.
  • the storage case 71 integrally stores at least the above-mentioned AC/DC converter 61 and DC/DC converter group 62.
  • the storage case 71 removably accommodates the AC/DC converter 61 and the DC/DC converter group 62.
  • the storage case 71 includes a plurality of storage pockets 41 and 42 in which the power supply device 72 is stored, and a case-side terminal portion 43 (accommodation-side connection portion in the claims).
  • the plurality of storage pockets specifically include a first storage pocket 41 and a second storage pocket 42.
  • the first storage pocket 41 is provided on the left side when viewed from the user.
  • a plurality of first storage pockets 41 (two in this embodiment) are provided vertically side by side.
  • the second storage pocket 42 is provided on the right side of the first storage pocket 41.
  • the second storage pockets 42 are arranged in a matrix of three rows in the horizontal direction and five rows in the vertical direction, a total of 15 pieces.
  • the 15 second storage pockets 42 the one located at the lower left when viewed from the front is called the No. 1 storage pocket 42a (first storage section in the claims), and the one to the right of it is called the No. 2 storage pocket 42a.
  • the storage pocket 42b (second storage section in the claims) is referred to as a storage pocket 42b, and the one to the right of the storage pocket 42b is sometimes referred to as a storage pocket 42c.
  • the leftmost one in the second row from the bottom may be referred to as the No. 4 storage pocket 42d
  • the one to the right of it may be referred to as the No. 5 storage pocket 42e
  • the one to the right of it may be referred to as the No. 6 storage pocket 42f.
  • the leftmost one in the third row from the bottom is called the No. 7 storage pocket 42g
  • the one to the right is called the No. 8 storage pocket 42h
  • the one to the right is sometimes called the No. 9 storage pocket 42i.
  • the left end of the fourth row from the bottom is sometimes referred to as the No. 10 storage pocket 42j
  • the one to its right is referred to as the No. 11 storage pocket 42k
  • the one to the right is sometimes referred to as the No. 12 storage pocket 42l.
  • the one on the left end of the top row is called the No. 13 storage pocket 42m
  • the one to the right is called the No. 14 storage pocket 42n
  • the one to the right is sometimes called the No. 15 storage pocket 42p.
  • the second storage pocket 42 has a total of 15 storage pockets 42a to 42p, numbered 1 to 15.
  • the case side terminal portions 43 are provided at the rear end portions of the first storage pocket 41 and the second storage pocket 42, respectively.
  • the number of case-side terminal portions 43 is the same as the number of storage pockets.
  • a total of 17 case-side terminal portions 43 are provided, corresponding to the two first storage pockets 41 and the fifteen second storage pockets 42.
  • FIG. 6 a part of the case side terminal part 43 is illustrated.
  • the case side terminal portion 43 is connected to the power transmission path 6 .
  • the case-side terminal portion 43 is connected to a terminal of a power supply device 72 stored in each storage pocket of the storage case 71. Therefore, by storing the power supply device 72 in the storage case 71, the power supply device 72 and the power transmission path 6 inside the housing 2 are electrically connected.
  • the power supply device 72 includes the above-mentioned AC/DC converter 61 and DC/DC converter group 62. As shown in FIGS. 8 and 9, the AC/DC converter 61 has a box-like outer shape. In this embodiment, the AC/DC converter 61 is configured by, for example, two box-shaped devices arranged one above the other. These two AC/DC converters 61 are stored in the first storage pocket 41 of the storage case 71. A terminal portion 45 is provided at the rear end of each AC/DC converter 61. By storing the AC/DC converter 61 in the first storage pocket 41, the terminal part 45 of the AC/DC converter 61 and the case side terminal part 43 provided at the rear end of the first storage pocket 41, is connected.
  • the DC/DC converter group 62 is formed into a box shape whose outer shape is one size smaller than the AC/DC converter 61.
  • the DC/DC converter group 62 includes 12 charging DC/DC converters 66, one control DC/DC converter 68, and two cooling DC/DC converters. 67.
  • Each DC/DC converter (charging DC/DC converter 66, control DC/DC converter 68, and cooling DC/DC converter 67) is formed into a box shape with the same outer shape.
  • the twelve charging DC/DC converters 66 (first to twelfth charging DC/DC converters 66a to 66l) each have the same configuration.
  • the twelve charging DC/DC converters 66 are housed in the first to twelfth storage pockets 42a to 42l of the second storage pocket 42, respectively.
  • the twelve charging DC/DC converters 66 are stored in storage pockets in a state where they are separated from each other.
  • the first charging DC/DC converter 66a is stored in the first storage pocket 42a.
  • a second charging DC/DC converter 66b is stored in the second storage pocket 42b.
  • third to twelfth charging DC/DC converters 66c to 66l are stored in the third to twelfth storage pockets 42c to 42l, respectively.
  • One control DC/DC converter 68 is accommodated in the 13th storage pocket 42m of the second storage pockets 42.
  • the two cooling DC/DC converters 67 are housed in the 14th and 15th storage pockets 42n and 42p of the second storage pockets 42, respectively.
  • the two cooling DC/DC converters 67 are stored in storage pockets in a state where they are separated from each other.
  • the power supply device 72 may include an IF board 63, a control board 64 (control unit), etc. in addition to the above-mentioned AC/DC converter 61 and DC/DC converter group 62.
  • the IF board 63 and the control board 64 may be placed on top of the storage case 71.
  • a third storage pocket (not shown) for storing the IF board 63 and the control board 64 may be formed in the storage case 71, and the IF board 63 and the control board 64 may be stored in the third storage pocket.
  • the power conversion unit 73 is provided on the power transmission path 6 , provided in the second region 32 of the housing 2 , and corresponds to each battery 3 inserted into the battery slot 27 .
  • the power converter 73 is centrally housed in the second area 32 along with other power converters (AC/DC converter 61, IF board 63, and control board 64).
  • the power conversion unit 73 of the present embodiment has the second storage pocket 42 (more specifically, the storage pockets 42a to 42l of the second storage pocket 42) (claimed).
  • the charging DC/DC converter 66 of the DC/DC converter group 62 (the power converter main body).
  • the first to twelfth storage pockets 42a to 42l of the second storage pocket 42 removably accommodate the charging DC/DC converter 66.
  • the power converter 73 includes a first power converter 73a, a second power converter 73b, a third power converter 73c, a fourth power converter 73d, and a fifth power converter 73e. , a sixth power converter 73f, a seventh power converter 73g, an eighth power converter 73h, a ninth power converter 73i, a tenth power converter 73j, an eleventh power converter 73k, It has a twelfth power conversion section 73l.
  • the first power conversion section 73a electrically connects the external power supply connection section 4 and the first internal connection section 5a.
  • the second power conversion section 73b electrically connects the external power supply connection section 4 and the second internal connection section 5b.
  • the third to twelfth power conversion sections 73c to 73l electrically connect the external power supply connection section 4 and the third to twelfth internal connection sections 5c to 5l, respectively.
  • the first power conversion unit 73a includes a first storage pocket 42a and a first charging DC/DC converter 66a stored in the first storage pocket 42a.
  • the second power conversion unit 73b includes a second storage pocket 42b and a second charging DC/DC converter 66b stored in the second storage pocket 42b.
  • the third to twelfth power conversion units 73c to 73l are stored in the third to twelfth storage pockets 42c to 42l and the third to twelfth storage pockets 42c to 42l, respectively. It has twelve charging DC/DC converters 66c to 66l.
  • the first power converter 73a and the second power converter 73b are arranged close to each other in the second region 32.
  • “arranged close to each other” means, for example, that the first power converter 73a and the second power converter 73b are located in storage pockets adjacent to each other (in this embodiment, the first power converter 73a and the second power converter 73b are located in storage pockets 42a and 22). This refers to being placed in the pocket 42b).
  • the second power converter 73b and the third power converter 73c are stored in adjacent storage pockets (in this embodiment, the second storage pocket 42b and the third storage pocket 42c), so that they are close to each other. It is arranged as follows.
  • the first power converter 73a and the fourth power converter 73d located above the first power converter 73a are stored in vertically adjacent storage pockets (in the embodiment, the first storage pocket 42a and the fourth storage pocket 42d). are placed close to each other. In this way, all the power converters 73 (first to twelfth power converters 73a to 73l) are arranged in a matrix of three rows in the horizontal direction and four stages in the vertical direction, depending on the position of each corresponding storage pocket. It is located.
  • the power conversion section 73 includes a terminal section 45 (main body side connection section in the claims) provided on each charging DC/DC converter 66 which is the main body of the power conversion section, and a case side terminal section 43 provided on the storage case 71. (accommodating part side connection part of a claim).
  • the case-side terminal portions 43 of the power conversion unit 73 are provided at the rear end portions of the first to twelfth storage pockets 42a to 42l (accommodation portions in the claims) of the second storage pocket 42, respectively.
  • the case-side terminal section 43 of the power conversion section 73 is detachably connected to the terminal section 45 of the charging DC/DC converter 66.
  • FIG. 10 is an enlarged perspective view of the upper portion of the DC/DC converter group 62.
  • FIG. 11 is a perspective view of the storage case 71 seen from the rear.
  • the erroneous insertion suppressing section 74 includes a protrusion 79 provided on the storage case 71 and a notch 78 provided on the DC/DC converter group 62, which is the main body of the power converting section. .
  • each protrusion 79 is provided in each of the 15 second storage pockets 42a to 42p, except for the 13th storage pocket 42m. There is. Each protrusion 79 protrudes from the upper surface of the inside of the storage pockets 42a to 42l, 42n, and 42p toward the inside where each DC/DC converter group 62, which is the main body of the power conversion unit, is stored.
  • the positions of the protrusions 79 are different between the protrusions 79 provided in the 1st to 12th storage pockets 42a to 42l and the protrusions 79 provided in the 14th and 15th storage pockets 42n and 42p.
  • the protrusions 79 provided in the first to twelfth storage pockets 42a to 42l are arranged at positions corresponding to the right back corner of each storage pocket.
  • the protrusions 79 provided in the 14th and 15th storage pockets 42n and 42p are arranged at positions corresponding to the rear left corner of each storage pocket.
  • the 13th storage pocket 42m is not provided with any protrusion.
  • each of the DC/DC converter group 62 (charging DC/DC converter 66 and cooling DC/DC converter 67) has a notch 78 at a position corresponding to the above-mentioned protrusion 79. is provided.
  • the notch 78 prevents interference with the protrusion 79 when each of the DC/DC converter group 62 is housed in the storage case 71 in the correct orientation, and prevents interference with the protrusion 79 when each of the DC/DC converter group 62 is housed in the storage case 71 in the wrong orientation. It is formed so as to interfere with the protrusion 79.
  • the charging DC/DC converter 66 that can be accommodated in the first to twelfth storage pockets 42a to 42l has a notch 78 formed at the rear right corner of the top surface.
  • the cooling DC/DC converter 67 that can be accommodated in the 14th and 15th storage pockets 42n and 42p has a notch 78 formed at the back left corner of the top surface. A notch is not formed in the control DC/DC converter 68 that can be accommodated in the No. 13 storage pocket 42m.
  • the terminal portion 45 provided at the rear end of the charging DC/DC converter 66 and the terminal portion 45 provided at the rear end of the cooling DC/DC converter 67 have the same shape. .
  • the terminal portion 45 provided at the rear end of the control DC/DC converter 68 has, for example, a dimension in the width direction that is equal to the terminal portion 45 of the charging DC/DC converter 66 and the cooling DC/DC converter 67. It's different.
  • the charging DC/DC converter 66 and the protrusion 79 will interfere, so the charging DC /DC converter 66 pops out from the front of storage case 71, preventing incorrect insertion. If you try to store the charging DC/DC converter 66 or the cooling DC/DC converter 67 in the storage pocket 42m No. 13, the control DC/DC converter 68 will be stored because the terminal portion 45 has a different shape in the first place. Alternatively, it becomes impossible to accommodate the cooling DC/DC converter 67, and incorrect insertion is suppressed.
  • these DC/DC converter groups 62 (specifically, the charging DC/DC converter 66, the cooling DC/DC converter 67, and the control DC/DC converter 68) have a lever 11 and a claw. 12 are provided respectively.
  • the claw 12 moves inside the main body. It is retracted and removed from the slit (not shown) of the second storage pocket 42. This makes it possible to pull out each converter of the DC/DC converter group 62 (charging DC/DC converter 66, cooling DC/DC converter 67, and control DC/DC converter 68) forward. ing.
  • the holding member 75 (fixing part in the claims) is removably attached to the front surface of the second storage pocket 42 of the storage case 71.
  • the pressing member 75 is formed in a lattice shape when viewed from the front, and is formed so that at least a portion thereof overlaps with the DC/DC converter group stored in the second storage pocket 42.
  • the holding member 75 is fastened to the storage case 71 at both left and right ends using fastening members such as screws.
  • the holding member 75 fixes each stored DC/DC converter group 62 so that it cannot be taken out.
  • the holding member 75 collectively fixes at least the first to twelfth power conversion units 73a to 73l to the housing 2.
  • the holding member 75 holds the cooling DC/DC converter 67 and the control DC/DC converter 68 against the housing 2 in addition to the first to twelfth power converters 73a to 73l. Fix all at once. Furthermore, the holding member 75 has one end (left end) fastened to the front surface of the AC/DC converter 61 (another power converter in the claims), so that the AC/DC converter 61 can be are also fixed to the housing 2 all at once.
  • the AC/DC converter 61 is a device that is placed closer to the external power supply connection section 4 than the power conversion section 73 on the power transmission path 6 .
  • the holding member 75 holds all the power equipment (first to twelfth power converters 73a to 73l, cooling DC/DC converter 67, control DC/DC converter 68, and AC /DC converter 61) is fixed to the housing 2 all at once.
  • the fixation detection section 76 (detection section in the claims) is configured to be able to detect whether or not the pressing member 75 is fixed to the storage case 71.
  • the fixed detection section 76 is provided in the storage case 71.
  • the fixed detection section 76 is provided at a position corresponding to the other end (right end) of the pressing member 75 to which it is fastened.
  • the fixed detection unit 76 is, for example, a contact type switch. As shown in FIGS. 7 and 8, the fixed detection unit 76 is turned on when the switch is pressed by the presser member 75 when the presser member 75 is attached to the storage case 71, and when the presser member 75 is removed.
  • the switch is configured to be turned off.
  • the fixed detection unit 76 is electrically connected to the control board 64 of the power supply device 72, and performs desired control depending on the result of whether the holding member 75 is attached.
  • the upper cover 8 is provided so that the top surface of the housing 2 can be opened and closed by rotating a base end 52 (rear end) located at the rear with respect to the housing 2.
  • Upper cover 8 has a top plate 81.
  • the top plate 81 is formed into a plate shape that covers the upper surface of the housing 2 .
  • a hinge (not shown) is provided at the base end portion 52 of the top plate 81.
  • a pair of hinges are provided on the left and right sides.
  • the rotation axis 80 is provided along the base end 52 of the top plate 81, and the tip (front end) 51 of the top plate 81 rotates up and down about the rotation axis 80.
  • the top plate 81 opens and closes with respect to the housing 2.
  • the top plate 81 is formed in a shape that follows the shape of the top surface of the casing 2 so as to cover the top surface of the casing 2 without any gaps. Specifically, the top plate 81 is formed by a flat plate portion that covers the top surface of the housing 2 when the upper cover 8 is closed, and an arc portion that is connected to the front end of the flat plate portion and curves into an arc shape. There is.
  • a striker (both not shown) that engages with a latch provided on the casing 2 is provided on the top plate.
  • the upper cover 8 (top plate 81) is fixed to the housing 2 in a closed state.
  • the upper cover 8 may be provided with a keyhole (not shown) to form the upper cover 8 with a key.
  • the power supply equipment 72 arranged in the second area 32 can be accessed.
  • the upper cover 8 is provided so that the power supply device 72 including the charging DC/DC converter 66 can be inserted into and removed from the storage case 71 when the upper cover 8 is in the open state.
  • the upper cover 8 is provided with, for example, an opening/closing detection section that detects whether or not the upper cover 8 is closed, a reinforcing member for reinforcing the top plate 81, etc. (both not shown). You can.
  • the opening/closing detection section may be electrically connected to the control board 64 to perform desired control depending on the open/closed state of the upper cover 8.
  • FIG. 12 is an exploded perspective view of the front cover.
  • FIG. 13 is an enlarged view of section XIII in FIG. 12.
  • FIG. 14 is a perspective view of the front cover seen from the rear (back side).
  • FIG. 15 is an enlarged view of section XV in FIG. 14.
  • the front cover 9 covers the front surface of the housing 2 at a position corresponding to the first region 31 in the vertical direction.
  • the front cover 9 includes a cover body 91 , a fitting portion 92 , and a fitted portion 93 .
  • the cover main body 91 is formed into a flat plate shape along the front surface of the housing 2. As shown in FIGS. When viewed from the front, the cover main body 91 is formed in a grid shape with a plurality of openings 90 (12 in this embodiment) at positions corresponding to the plurality of battery exchange ports 28 of the battery slot 27 (see FIG. 3). has been done.
  • a plurality of fitting portions 92 are provided on the back surface of the cover body 91.
  • the fitting portion 92 is provided, for example, approximately at the center of the cover body 91, between two openings 90 adjacent to each other in the left-right direction.
  • the fitting portion 92 includes a pair of support walls 94 that protrude rearward, and a pin 95 that extends across the pair of support walls.
  • the fitted portion 93 is attached to the frame 38 on the housing 2 side.
  • the fitted portion 93 is provided at a position corresponding to the fitted portion 92 of the front cover 9 .
  • the fitted portion 93 fits into the fitting portion 92 of the front cover 9 .
  • the front cover 9 is attached to the housing 2 by fitting the fitted portion 93 and the fitting portion 92 into each other.
  • the fitted portion 93 is a latch mechanism that includes a bracket 96 and a movable portion 97 that rotates with respect to the bracket 96.
  • the bracket 96 is attached to the frame 38 on the housing 2 side.
  • a base end portion of the movable portion 97 rotates around an axis extending in the horizontal direction with respect to the bracket 96 .
  • a concave portion 97a for receiving the pin 95 of the fitting portion 92 is formed at the distal end portion of the movable portion 97 located on the opposite side from the base end portion.
  • FIG. 16 is a sectional view showing the fitting portion 92 of the front cover 9.
  • FIG. 17 is an enlarged view of section XVII in FIG. 16.
  • FIG. 17 shows a state in which the fitting part 92 is fitted into the fitted part 93.
  • a connecting bar 99 that connects the plurality of fitted parts 93 is connected to the fitted part 93 .
  • the connecting bar 99 of the front cover 9 By sliding the connecting bar 99 of the front cover 9 in the vertical direction with the upper cover open, the movable part 97 rotates with respect to the bracket 96. This allows the fitted portions 93 to fit or unfit the fitting portions 92 all at once. Specifically, as shown by arrow A1 in FIGS.
  • the external power supply connection section 4, the housing 2, the internal connection section 5, and the power conversion section 73 are provided.
  • the internal connection section 5 including the first internal connection section 5a, the second internal connection section 5b, etc., and the power conversion section 73 including the first power conversion section 73a, the second power conversion section 73b, etc. are separated ( (in another area).
  • the work area is narrowed for a user who works on the power conversion section 73, for example, so that the effort of moving the user can be saved.
  • the power conversion section 73 separately from the internal connection section 5, for example, the first internal connection section 5a, the first power conversion section 73a, the second internal connection section 5b, the second power conversion section 73b. Compared to the conventional technology in which a plurality of internal connection parts 5 and power conversion parts 73 are arranged adjacently and alternately, maintenance work on the power conversion part 73 can be performed more easily.
  • the size is particularly large in the lateral direction. It is possible to suppress the Thereby, the installation footprint of the power device 1 can be reduced. Further, even when the user replaces a plurality of power storage units (batteries 3), there is no need to move laterally, so convenience for the user working on the internal connection unit 5 can be improved. Furthermore, by providing the internal connection part 5 and the power conversion part 73 separately, for example, a user working on the internal connection part 5 cannot open it, and only a maintenance worker working on the power conversion part 73 can open it.
  • the power device 1 can suppress the increase in size and improve user convenience compared to the conventional technology.
  • the first internal connection part 5a and the second internal connection part 5b are arranged close to each other in the first region 31, and the first power conversion part 73a and the second power conversion part 73b are arranged close to each other in a second region 32 different from the first region 31.
  • the power conversion part 73 is located relatively higher, so that maintenance work on the power conversion part 73 can be easily performed.
  • the first internal connection portion 5a and the second internal connection portion 5b are arranged close to each other. This allows the first region 31 to be made smaller.
  • the first power conversion portion 73a and the second power conversion portion 73b are arranged close to each other. This allows the second region 32 to be made smaller. This prevents the power device 1 from becoming larger. Since each region is compact, convenience can be improved for both users who perform work on the internal connection portion 5 and users who perform work on the power conversion portion 73.
  • the fixing part fixes the first power converter 73a and the second power converter 73b to the housing 2 all at once. Thereby, even if a plurality of power converters 73 are provided, each power converter 73 can be easily fixed to the housing 2. Therefore, compared to the case where holding members 75 are provided for each of the plurality of power conversion units 73, the work related to fixing the power conversion units 73 can be simplified and user convenience can be improved. Furthermore, an increase in cost can be suppressed compared to the case where a plurality of holding members 75 are provided.
  • the fixing part (holding member 75) collectively fixes other power converters (AC/DC converter 61, etc.) in addition to the first power converter 73a and the second power converter 73b.
  • various power converters 73 can be easily fixed to the housing 2. Therefore, compared to the case where, for example, the holding member 75 is provided for each of the power conversion section 73 (charging DC/DC converter 66) and other power conversion sections (AC/DC converter 61), the user's can improve the convenience of Furthermore, an increase in cost can be suppressed compared to the case where a plurality of holding members 75 are provided.
  • the power device 1 (battery exchanger 1) further includes a detection section (fixation detection section 76) capable of detecting whether or not the fixation section (pressing member 75) is fixed. Thereby, forgetting to tighten the pressing member 75 can be suppressed. Furthermore, it is possible to control, for example, switching between energization and power cutoff of the internal power conversion section 73 according to the detection result of the fixed detection section 76. Therefore, user convenience can be further improved.
  • the power converter 73 includes a power converter main body (DC/DC converter for charging 66) and a housing section (second storage pocket 42) that removably accommodates the DC/DC converter for charging 66. .
  • a plurality of power converters 73 can be accommodated at once. Since the charging DC/DC converters 66 can be arranged in an organized manner, the maintainability of the power converter 73 can be improved.
  • the power converter main body (charging DC/DC converter 66) is provided with a main body side connection part (terminal part 45), and the (second storage pocket 42) is provided with a storage part side connection part (case side terminal part 43). is provided.
  • the case side terminal section 43 is detachably connected to the terminal section 45 of the charging DC/DC converter 66.
  • the case side terminal section 43 is configured to be connected to the internal connection section 5 and the external power supply connection section 4 in advance, the charging DC/DC converter 66 can be housed in the second storage pocket 42 to provide power.
  • the conversion section 73 can be connected to the internal connection section 5 and the external power supply connection section 4 . Therefore, the power conversion unit 73 can be easily replaced and maintained.
  • the storage section includes a first storage section (in this embodiment, the first storage pocket 42a) that stores the first power conversion section 73a, and a second storage section that stores the second power conversion section 73b. (in this embodiment, the second storage pocket 42b).
  • the second power conversion unit 73b is provided adjacent to the first storage pocket 42a.
  • the plurality of second storage pockets 42 can be arranged close to each other while being separated from each other. Thereby, the plurality of power converters 73 can be arranged and arranged while suppressing the enlargement of the second storage pocket 42. Therefore, the maintainability of the power converter 73 can be improved.
  • a protrusion 79 is provided on the storage portion (second storage pocket 42), and a notch 78 corresponding to the protrusion 79 is provided on the power conversion portion main body (charging DC/DC converter 66).
  • the notch 78 prevents interference with the protrusion 79 when the charging DC/DC converter 66 is stored in the second storage pocket 42 in the correct orientation, and also prevents the charging DC/DC converter 66 from being stored in the second storage pocket 42 in the wrong orientation. It is formed so as to interfere with the protrusion 79 when the protrusion 79 is pressed. Thereby, incorrect assembly of the power converter 73 can be suppressed.
  • the protrusion 79 and the notch 78 are provided, for example, if the charging DC/DC converter 66 is stored in the second storage pocket 42 in the wrong direction, the protrusion 79 and the charging DC/DC converter 66 will not come together. Due to the interference, the charging DC/DC converter 66 appears to have jumped out of the second storage pocket 42. This makes it easier to visually see that the parts have been assembled incorrectly. Therefore, convenience for the user who assembles the power converter 73 can be further improved.
  • the second region 32 can be opened or closed. Thereby, by opening the upper cover 8, maintenance etc. of the power conversion unit 73 provided in the second region 32 can be performed. Since the upper cover 8 is provided so that only the second area 32 can be opened and closed, it cannot be opened by general users who work on the internal connection part 5, for example, but only by users (maintenance workers) who perform maintenance on the power conversion part 73. It can be configured so that it can be opened and closed. This increases safety and improves the workability of maintenance workers. By opening and closing the front cover 9, the first region 31 can be opened or closed. Thereby, by opening the front cover 9, maintenance etc. of the internal connection portion 5 provided in the first area 31 can be performed.
  • the front cover 9 has a plurality of fitting parts 92 that fit with the fitted part 93 of the housing 2, and by moving the front cover 9 with the upper cover 8 open, the plurality of fitting parts 92 are fitted. It is possible to mate or unmate them all at once. Thereby, the front cover 9 can be easily opened and closed. Therefore, user convenience (maintainability) can be improved.
  • the external power supply connection section 4 only needs to be a section to which grid power is connected to the power device (battery exchanger 1), and may be provided outside the housing 2.
  • the shapes of the upper cover 8 and the front cover 9 are not limited to the shapes of the embodiments described above.
  • the sliding direction of the front cover 9 is not limited to the direction (vertical direction) of the embodiment described above.
  • the front cover 9 may be attached or removed by a moving method other than sliding.
  • An opening/closing detection section for detecting whether or not the upper cover 8 is closed may be separately provided. In this case, different controls regarding the power supply unit may be performed depending on the combination of the detection result of the opening/closing detection section of the upper cover 8 and the detection result of the fixation detection section 76 of the pressing member 75.
  • the fixed detection unit 76 may be, for example, a non-contact type sensor.
  • the storage case 71 may house power equipment 72 other than the AC/DC converter 61 and the DC/DC converter group 62. In this case, the storage case 71 may have a plurality of storage pockets in addition to the first storage pocket 41 and the second storage pocket 42.
  • the cooling DC/DC converter 67 is an example of an auxiliary equipment DC/DC converter, and even if a DC/DC converter for an auxiliary equipment other than the cooling system is provided in place of the cooling DC/DC converter 67. good.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

Dans la présente invention, un échangeur de batterie (dispositif d'alimentation électrique) comprend une partie de connexion d'alimentation électrique externe qui est connectée à une alimentation électrique externe, un boîtier (2), une partie de connexion interne qui est connectée à une batterie disposée à l'intérieur du boîtier (2), une unité de conversion d'énergie électrique (73) qui est disposée sur un trajet de transmission d'énergie électrique reliant la partie de connexion d'alimentation électrique externe et la partie de connexion interne, et un élément de pression (75). La partie de connexion interne comprend une pluralité de parties de connexion interne qui sont respectivement connectées à une pluralité de batteries, et l'unité de conversion d'énergie électrique (73) comprend une pluralité d'unités de conversion d'énergie électrique qui connectent électriquement la partie de connexion d'alimentation électrique externe et les parties de connexion interne. La pluralité de parties de connexion interne sont disposées à proximité les unes des autres dans une première région du boîtier (2), et la pluralité d'unités de conversion d'énergie électrique sont disposées à proximité les unes des autres dans une seconde région (32) du boîtier (2). L'élément de pression (75) fixe la pluralité d'unités de conversion d'énergie électrique au boîtier (2) en vrac.
PCT/JP2023/033491 2022-09-14 2023-09-14 Dispositif d'alimentation électrique WO2024058242A1 (fr)

Applications Claiming Priority (2)

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JP2022146099 2022-09-14
JP2022-146099 2022-09-14

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WO2024058242A1 true WO2024058242A1 (fr) 2024-03-21

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07282856A (ja) * 1994-01-06 1995-10-27 Gnb Ind Battery Co 密閉型鉛−酸バッテリトレー組立体、および電気駆動式乗物
DE10241083A1 (de) * 2002-09-05 2004-03-25 Hoppecke Batterien Gmbh & Co. Kg Energieversorgungssystem
WO2008123543A1 (fr) * 2007-04-02 2008-10-16 Mitoshi Ishii Batterie d'accumulateurs, dispositif de réception de batterie d'accumulateurs, dispositif de chargement de batterie d'accumulateurs, et dispositif de règlement de frais d'usage pour la batterie d'accumulateurs
JP2021087224A (ja) * 2019-11-25 2021-06-03 本田技研工業株式会社 電力利用装置
WO2022075430A1 (fr) * 2020-10-07 2022-04-14 本田技研工業株式会社 Dispositif de réception
JP2022138342A (ja) * 2021-03-10 2022-09-26 本田技研工業株式会社 電力装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07282856A (ja) * 1994-01-06 1995-10-27 Gnb Ind Battery Co 密閉型鉛−酸バッテリトレー組立体、および電気駆動式乗物
DE10241083A1 (de) * 2002-09-05 2004-03-25 Hoppecke Batterien Gmbh & Co. Kg Energieversorgungssystem
WO2008123543A1 (fr) * 2007-04-02 2008-10-16 Mitoshi Ishii Batterie d'accumulateurs, dispositif de réception de batterie d'accumulateurs, dispositif de chargement de batterie d'accumulateurs, et dispositif de règlement de frais d'usage pour la batterie d'accumulateurs
JP2021087224A (ja) * 2019-11-25 2021-06-03 本田技研工業株式会社 電力利用装置
WO2022075430A1 (fr) * 2020-10-07 2022-04-14 本田技研工業株式会社 Dispositif de réception
JP2022138342A (ja) * 2021-03-10 2022-09-26 本田技研工業株式会社 電力装置

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