WO2014073544A1 - ラック構造、蓄電システム、およびラック構造の組立方法 - Google Patents
ラック構造、蓄電システム、およびラック構造の組立方法 Download PDFInfo
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- WO2014073544A1 WO2014073544A1 PCT/JP2013/079937 JP2013079937W WO2014073544A1 WO 2014073544 A1 WO2014073544 A1 WO 2014073544A1 JP 2013079937 W JP2013079937 W JP 2013079937W WO 2014073544 A1 WO2014073544 A1 WO 2014073544A1
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- battery
- rack
- connector
- connector member
- shelf
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- 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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/18—Construction of rack or frame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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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
- 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
- H01M50/251—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
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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
- 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
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
- H01M50/51—Connection only in series
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- 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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
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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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49828—Progressively advancing of work assembly station or assembled portion of work
Definitions
- the present invention relates to a structure of a power storage system and the like, and in particular, a rack structure and a power storage system that can be easily assembled without taking time and effort in electrical wiring between battery shelves and electrical wiring between a battery shelf and a rack. And an assembling method of the rack structure.
- Patent Document 1 discloses a power storage system in which a plurality of battery units and a control unit that controls the battery units are housed in one housing case.
- An object of the present invention is to provide a power storage system and a method for assembling a rack structure.
- a rack structure is as follows. 1. A battery shelf for housing a plurality of battery units; A rack to which at least one battery shelf is mounted; A connector for electrical connection between the battery shelf and the rack; A rack structure comprising: The connector has a rack structure having a first connector member provided on the back surface of the battery shelf and a second connector member provided on the rack side.
- the first connector member and the second connector member are connected while the battery shelf is moved to a predetermined mounting position of the rack.
- the “battery unit” includes one or a plurality of chargeable / dischargeable storage batteries (battery cells), and may be referred to as a “battery module” or the like.
- the “battery shelf” is a case for accommodating a battery unit, and is typically a box-type case having an opening for inserting the battery unit in a part thereof. Note that various forms other than the box shape are possible as long as the battery unit has a function of accommodating and holding the battery unit.
- a rack structure, a power storage system, and a rack structure assembling method that can be easily assembled without troublesome electric wiring between battery shelves and electric wiring between the battery shelf and the rack. Can be provided.
- the storage battery system 1 of the present embodiment includes a rack 10 and a plurality of battery shelf assemblies 50-1 to 50-3 (hereinafter simply referred to as “battery shelf assemblies” accommodated in the rack 10. 50 ”).
- battery shelf assemblies 50-1 to 50-3 are arranged in three upper and lower stages.
- a controller 70 is provided below these battery shelf assemblies 50.
- the battery shelf assembly 50 means a state in which a plurality of battery units 30 are mounted on a battery shelf 55 that is a housing case (details will be described later).
- Each of the battery shelf assemblies 50-1 to 50-3 has basically the same configuration, but the breaker unit 80 is replaced with a part of the battery unit 30 in the lowermost battery shelf assembly 50-3 among the three. Contained.
- the control unit 70 is for controlling the operation of the entire power storage system 1 and is composed of one or a plurality of control devices.
- the entire storage battery system 1 has some or all of the following functions: (A) supplying power from the battery unit 30 to a predetermined external device or system; (B) The battery unit 30 is charged by receiving external power supply. (C) The control unit 70 and the breaker unit 80 control the timing such as the start / end of charge / discharge, or monitor the state of each battery unit 30. (D) The function of the control unit 70 and the breaker unit 80 determines whether the temperature of one or a plurality of battery units 30 is within an appropriate range. (E) The function of the control unit 70 and the breaker unit 80 determines whether one or a plurality of battery units 30 are defective. (F) The function of the control unit 70 and the breaker unit 80 is used to determine how much the battery unit 30 has been used for a certain battery unit 30, and based on that, it is determined whether or not replacement is necessary.
- the detected temperature obtained from a temperature sensor or the like is within a predetermined range set in advance.
- the above (e) is based on a predetermined parameter related to the battery (for example, a parameter such as a voltage value or a current value, a characteristic curve at the time of charging / discharging of the battery, etc.) and comparing such a parameter with a predetermined standard.
- a predetermined parameter related to the battery for example, a parameter such as a voltage value or a current value, a characteristic curve at the time of charging / discharging of the battery, etc.
- the number of battery units 30 is not particularly limited, but in this embodiment, a total of 24 battery units 30 are accommodated in three shelves, and all of them are electrically connected in series. Note that not all units need to be connected in series, and may be a combination of series connection and parallel connection.
- the rack 10 includes a base portion 21, struts 11 standing at the four corners thereof, and a top plate 22 attached to the top of the struts 11. It forms a rectangular parallelepiped accommodation space.
- the rack 10 also has inner struts 12 arranged on the left and right.
- the holding plates 15 ⁇ / b> L and 15 ⁇ / b> R are members for holding the battery shelf assembly 50, and are provided so as to hang substantially horizontally on the two adjacent inner columns 12. Both ends of the bottom surface of the battery shelf assembly 50 are held by the pair of holding plates 15L and 15R.
- pairs of holding plates 15L and 15R are provided at three locations in the vertical direction.
- the holding plates 15L and 15R are not limited, but may be metal members having an L-shaped cross section and sufficient rigidity. In this case, when the battery shelf 55 is attached, the shelf can be moved to the back side while sliding the shelf on the horizontal plane of the holding plates 15L and 15R. For example, screws and bolts may be used to fix the holding plates 15L and 15R to the inner support column 12.
- the inner support column 12 has a plurality of screw holes formed in the vertical direction so that the mounting positions (height direction) of the holding plates 15L and 15R can be adjusted. Thereby, it can respond to the size of various battery shelf assemblies. Depending on the size of the battery shelf assembly, the number of racks may be two or less or four or more.
- FIG. 9 shows a power connector (floating connector) 180 constituted by a back connector member 181 and a mating connector member 191.
- the “floating structure” means that the other connector member is configured to be movable with respect to one connector member, so that the relative positional error between the connector members (for example, 1 mm or more, 2 mm or more, or 3 mm or more, or 5 mm or more).
- the “floating connector” means a connector having such a floating structure.
- the bracket member 17 is not limited to a plate shape as long as it has a function of holding at least the mating connector member 191, and may have any shape.
- the bracket member 17 itself may be configured to be movable in the front-rear direction, the left-right direction, and / or the up-down direction (details below).
- the bracket member 17 includes a support member 25 to which the mating connector member 191 is fixed, and a connecting piece 26 that connects the support member 25 to the support column 11 of the rack 10.
- the support member 25 is a long member extending in the left-right direction in this example.
- the support member 25 may be a metal member having a substantially U-shaped cross section.
- the connector member 191 is fixed to the support member 25 by screws or bolts S. In this state, a part of the connector member 191 (connection terminals 191p, 191q, etc.) protrudes to the back side through the opening 25a of the support member 25. It is in a state.
- the connecting piece 26 is provided at both ends of the support member 25 (only one is shown in FIG. 9).
- the connecting piece 20 is a metal member having an L-shaped cross section as an example, and has a flat surface 26-1 extending in the vertical and horizontal directions and a flat surface 26-2 extending in the vertical and front-back directions. Yes.
- the screw S1 is passed through the long hole 26a, and the tip end side of the screw S1 is screwed into the screw hole at the end of the support member 25. Since the longitudinal dimension / lateral dimension of the long hole 26a is sufficiently large with respect to the shaft diameter of the screw S1, the support member 25 can move in all directions in the vertical direction, the horizontal direction, and the diagonal direction even after the screw is tightened. You can move freely. In this case, the movable amount may be 1 mm to several mm.
- the flat surface 26-2 has two round holes 26b formed with a relatively large diameter.
- the screw S2 is passed through the round hole 26b, and the tip end side of the screw S2 is screwed into the screw hole formed in the column 11. Since the inner diameter of the round hole 26b is sufficiently large with respect to the shaft diameter of the screw S2, the connecting piece 26 (and thus the entire bracket member 17) can freely move in the vertical direction, the front-rear direction, and the like even after the screw is tightened. It can be moved.
- the movable amount may be 1 mm to several mm.
- the battery shelf assembly 50 includes a plurality of battery units 30 and a battery shelf 55 that accommodates the battery units 30.
- the battery unit 30 has a configuration in which a plurality of battery cells (not shown) are built in a thin and vertically long casing 31 as a whole.
- a front plate 32 is provided on the front surface side of the casing 31, and a handle 33 is provided at a substantially central portion of the plate 32.
- the upper end and the lower end of the front plate 32 are configured to be fixed to a part of the shelf 55 after the battery unit 30 is set in the battery shelf 55.
- the fixing screw 37 may be sufficient.
- the battery unit 30 may also have a sensor for detecting the temperature of the internal battery cell and an electronic circuit (not shown) for outputting the detection result to the outside.
- a power connector member (FIG. 8, described in detail later) and a signal connector member (not shown) are provided.
- the battery shelf 55 As shown in FIG. 5, the battery shelf 55 is formed in a box shape having an open front surface, and has both side surfaces, an upper surface, a lower surface, and a back surface. On both side surfaces, one fixing plate 57 (only the right side is shown) for fixing the battery shelf 55 to the rack 10 is provided.
- the battery unit 30 is inserted into the battery shelf 55 while sliding, and the upper surface in the battery shelf 55 is used for the guide (for insertion along the guide groove).
- guide members 53a and 53b are provided on the lower surface.
- the guide members 53a and 53b are not limited, but may be straight members arranged in parallel to each other.
- the electrical connection between the battery unit 30 and the battery shelf 55 is made by a connector having a floating structure (floating connector). This will be described below.
- FIG. 8 is a perspective view for explaining the structure of the floating connector.
- the connector 120 includes a fixed-side connector member 121 attached to the battery unit 30 side and a movable-side connector member 131 attached to the shelf 55 side.
- Each connector member 121, 131 may be made of resin as an example.
- the fixed connector member 121 is provided on the electrode terminal portion of the battery unit 30.
- the fixed connector member 121 has a base portion 122 and a recess 123 formed in the base portion 122.
- the concave portion 123 is a portion into which the plug portion 135 of the mating connector member 131 is inserted as described below, and a tapered portion 123 s is formed at the inlet portion of the concave portion 123.
- One hole (not shown) is formed in each of the upper end and the lower end of the base portion 122, and fixing screws are passed through the holes, and the fixed connector member 121 is fixed to the back surface of the battery unit 30.
- the movable connector member 131 has a base portion 132 and a plug portion 135 protruding therefrom.
- the outer shape of the plug portion 135 corresponds to the concave portion 123 of the fixed-side connector member 121.
- a tapered part 135s is formed at the tip of the plug part 135, whereby the plug part 135 is tapered.
- the plug part 135 is inserted into the recess 123 in the direction shown in the drawing, but the plug part 135 is inserted into the recess 123 in the upside down direction to prevent erroneous connection. It is also preferable that the structure is not possible.
- the floating structure of the connector 120 of the present embodiment is realized by forming the tapered portion 135s at the tip of the plug portion 135 and movably providing the movable connector member 131 as described below. That is, as shown in FIG. 8, a substantially U-shaped attachment portion 138 is formed at the upper end and the lower end of the base portion 132 of the movable connector member 131, and a gap 138 g inside the attachment portion 138 serves as the diameter of the fixing screw S. Has been made bigger than. With such a configuration, the movable-side connector member 131 is in a state of being temporarily fixed between the two fixing screws S. Therefore, the movable-side connector member 131 can freely move to some extent in all directions of the vertical direction, the horizontal direction, and the diagonal direction. The movable amount in this case may be, for example, about 1 mm to several mm although it depends on the size of the entire connector 120 and the size of the battery unit 30.
- the direction in which the movable connector member can move may be one or a combination thereof, instead of all the vertical, horizontal, and diagonal directions.
- the configuration that allows the movable connector member to move can be variously changed, and is not limited to the structure shown in FIG.
- the gap 138g of the attachment portion 138 may be a closed circular hole or a long hole. Further examples regarding the connector member will be described later.
- the movable-side connector member 131 may be configured to be movable not only in one or a combination of the vertical direction, the horizontal direction, and the diagonal direction in one plane, but also in the front-rear direction (vertical direction). , One or a combination of left-right direction, diagonal direction, and front-rear direction).
- the movable amount may be, for example, about 1 mm to several mm.
- the length of the neck portion (portion formed with a relatively large diameter) of the fixing screw S may be longer than the thickness of the attachment portion 138.
- a floating connector similar to that shown in FIG. 8 is also used for connection between the battery shelf and the rack.
- the above description regarding the connector 120 is a connector 180 for directly connecting the battery shelf and the rack. It is also applicable to.
- the movable connector member 131 configured as described above is arranged on the back surface of the battery shelf 55 so as to be arranged in the horizontal direction. As shown in FIG. 7, a part of the movable side connector member 131 is exposed outside the back surface of the battery shelf 55, and the adjacent movable side connectors 131 are connected to each other by a flexible wiring 62.
- the flexible wiring 62 is obtained by providing connecting members at both ends of a strip-shaped conductive member. In the present embodiment, the flexible wiring 62 is attached obliquely so as to connect the upper end of one movable connector member 131 and the lower end of the other movable connector member 131.
- the battery units 30 are connected in series as described above.
- the electric power of the battery shelf assembly as a whole is taken out via a back connector member 181 provided at a power terminal portion (not shown) on the back of the battery shelf.
- the rear connector member 181 is the same as the fixed connector member 121 of FIG. In this example, the rear connector members 181 are respectively mounted sideways and arranged one by one side by side on the left and right.
- the mating connector member 191 is provided on the bracket member 17 of the rack 10.
- the connector member 191 is the same as the movable connector member 131 shown in FIG. With such a configuration, the battery shelf 55 and the rack 10 are also connected by the floating connector. Although not limited, the connector members 191 are connected in advance with a connection cord or the like.
- a signal connector 160 for exchanging electrical signals to the battery unit 50 will be described.
- this signal connector 160 for example, a known floating connector for electric equipment can be used, and a connector member 161 attached to the battery shelf 55 side and another connector member (not shown) attached to the battery unit 30 side. ).
- the power connector (connector member 131 in FIG. 5) and the signal connector (connector member 161 in FIG. 5) are arranged vertically with a predetermined interval. According to such a configuration, since the power line and the signal line are separated from each other, generation of power supply noise can be suppressed.
- a signal line (not shown) from the signal connector member 161 may be connected to an external control means or the like via an opening 55 a formed on the side surface of the battery shelf 55.
- the accommodation space may be formed in the bottom part of the battery shelf 55, for example, and BMU (control circuit: battery management unit) may be arrange
- a plurality of cooling fans 64 for cooling the battery unit 30 in the shelf are provided at the upper part of the back surface of the battery shelf 55.
- the battery shelf assembly 50 configured as described above has the following functions: (A) The power corresponding to the number of the battery units 30 is output, and the battery units 30 are charged at a predetermined timing. (B) Input / output of electrical signals to / from each battery unit 30 is performed via signal lines (not shown). (C) The cooling fan 64 is driven at a predetermined timing for cooling the battery unit 30.
- the rack 10 (FIG. 4) is assembled at the planned installation position of the power storage system 1, and the battery shelf 55 is attached to the rack 10 before the battery unit 30 is mounted as an example.
- the battery shelf 55 is attached by moving the battery shelf 55 from the front side of the rack to the back side, connecting the back connector member 181 of the battery shelf 55 and the mating connector member 191 on the rack side, and then fixing members ( The battery shelf 55 and the rack 10 are fixed with screws, bolts, and the like.
- the connector since the connector is connected by the rear connector member 181 having the floating function and the mating connector member 191, the electrical connection is completed only by moving the battery shelf 55 to the inner side, and a certain position is also achieved. Even if there is an error, the floating connector 180 can absorb the error.
- the bracket member 17 is configured to be movable at least several millimeters in the front-rear direction. Therefore, for example, even if the position of the battery shelf 55 is slightly shifted rearward from the predetermined position, the bracket member 17 is displaced rearward so that the error can be absorbed and the rear connector member 181 and the counterpart side can be satisfactorily absorbed. Connection with the connector member 191 can be performed. That is, in the present embodiment, the movable structure of the floating connector 180 and the bracket member 17 can absorb the position error of the connector members 181 and 191 in a complex manner.
- the battery units 30 are mounted one by one on the fixed battery shelf 55. Specifically, the operator holds the battery unit 30 and inserts it while sliding it into the battery shelf 55. At this time, since the guide members 53a and 53b are formed on the upper surface and the lower surface in the shelf, the battery unit 30 can be inserted straight by the guide action.
- the floating connector 120 absorbs the error and the connector is connected properly. It can be performed.
- the signal connector 160 can be connected well while absorbing errors by the action of the floating structure.
- the other two battery shelf assemblies 50 can be assembled in the same manner as described above (for the battery shelf assembly 50-3, the breaker unit 80 is attached). After all three battery shelf assemblies 50 are assembled, predetermined electrical wiring is performed to complete the power storage system 1 of the present embodiment. In addition, as predetermined electrical wiring, connecting the signal line from each battery shelf 50 to the control part 75 fixed to the rack 10 is mentioned.
- the battery shelf 55 when the battery shelf 55 is attached to the rack 10, the battery shelf 55 is linearly moved from the front side to the rear side of the rack 10, and a predetermined attachment position is obtained.
- the rear connector member 181 and the mating connector member 191 are connected to each other during the movement. Therefore, after physically attaching the battery shelf 55 to the rack 10, there is no need for an operator to wire a connection cord or the like for electrical wiring. Also, when removing the battery shelf 55, it is possible to remove and remove the electrical connection by simply pulling the shelf forward after removing the predetermined fixing means, so that no complicated work is required.
- bracket member 17 itself is also configured to be movable at least in the front-rear direction, for example, even if the position of the battery shelf 55 is slightly shifted from the predetermined position, the error is reduced.
- the back connector member 181 and the mating connector member 191 can be connected well while absorbing.
- the plug portion 135 is formed on the movable connector member 131.
- the plug portion (projecting portion) is formed on the fixed connector member 121, and the plug portion 135 is formed in the concave portion of the movable connector member 131. It is good also as a structure inserted.
- the connection form of the battery is not limited to the series connection, and various connection forms may be employed such that at least a part of the battery units are connected in parallel or the shelves are connected in parallel.
- the rear connector member 181 may be provided vertically instead of horizontally.
- the number of racks 10 is not limited to one, and two or more racks 10 electrically connected in series or in parallel may be arranged. The racks 10 may be separated from each other or may be arranged adjacent to each other.
- the shapes of the support member 25 and the connecting piece 26 can be changed as appropriate.
- the support member 25 may have any material, shape, or the like as long as the support member 25 has sufficient rigidity so as not to be largely bent when the connector members are connected to each other.
- the connecting piece 26 is not limited to a metal member having an L-shaped cross section as shown in the figure, and can be made of various materials and shapes.
- the round hole 26b of the connecting piece 26 may be a long hole so that the bracket member 17 can be moved at least in the front-rear direction.
- An urging member for example, a spring or the like for urging the bracket member 17 forward may be provided.
- a battery shelf for housing a plurality of battery units; A rack to which at least one battery shelf is mounted; A connector for electrical connection between the battery shelf and the rack; A rack structure comprising: The connector has a rack structure having a first connector member provided on the back surface of the battery shelf and a second connector member provided on the rack side.
- the connector is a floating connector having a floating structure for absorbing an error in a relative position between the first and second connector members.
- the floating structure absorbs an error of (i) at least one of an up-down direction, a left-right direction, and an oblique direction; or (ii) at least one position in an up-down direction, a left-right direction, an oblique direction, and a front-rear direction.
- the first connector member is a fixed connector member;
- the second connector member is a movable connector member;
- a plug portion is formed on the movable connector member, A concave portion into which the plug portion is inserted is formed in the fixed-side connector member, The rack structure as described above, wherein a taper portion is formed at least at a tip of the plug portion.
- the holding means for holding the second connector member is configured to be movable at least in a direction along the moving direction of the battery shelf, thereby absorbing an error in the position between the first and second connector members.
- the holding means is A support member to which the second connector member is attached; A connecting piece for connecting the support member to a part of the rack;
- control means for controlling operations of the plurality of battery units;
- the control means is configured to perform at least one of the following processes: Determining whether the temperature of one or more battery units is within an appropriate range; Determining whether one or more battery units are defective; A power storage system that determines how much a battery unit has been used for a battery unit and determines whether or not replacement is necessary based on the battery unit.
- a method of assembling a rack structure by attaching a battery shelf for housing a battery unit to a rack (in other words, a method of manufacturing a rack structure), A first connector member is provided on the back surface of the battery shelf, and a second connector member is provided on the rack side.
- a method for assembling a rack structure A method for assembling a rack structure.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
Description
1.複数の電池ユニットを収容するための電池シェルフと、
少なくとも1つの前記電池シェルフが取り付けられるラックと、
前記電池シェルフと前記ラックとの電気的接続を行うコネクタと、
を備えるラック構造であって、
前記コネクタは、前記電池シェルフの背面に設けられた第1のコネクタ部材と、前記ラック側に設けられた第2のコネクタ部材とを有する、ラック構造。
「電池ユニット」とは、充放電可能な蓄電池(電池セル)を1つ又は複数有するものであって「電池モジュール」等と呼ばれることもある。
「電池シェルフ」とは、電池ユニットを収容するためのケースであって、典型的なものとしては、電池ユニットを挿入するための開口部を一部に有する箱型のケースである。なお、電池ユニットを収容、保持する機能を有するものであれば、箱型以外の様々な形態も可能である。
〔全体構成〕
図1~図3に示すように、本実施形態の蓄電池システム1は、ラック10と、そのラック10に収容される複数の電池シェルフアセンブリ50-1~50-3(以下、単に「電池シェルフアセンブリ50」ともいう)を備えている。この例では、3つの電池シェルフアセンブリ50-1~50-3が上下三段に配置されている。これらの電池シェルフアセンブリ50の下方に制御部70が設けられている。
(a)電池ユニット30からの電力を外部の所定の機器またはシステムに供給する、
(b)外部からの電力供給を受けて各電池ユニット30の充電を行う、
(c)制御部70やブレーカユニット80によって、充放電の開始・終了等のタイミングを制御したり、各電池ユニット30の状態を監視したりする。
(d)制御部70やブレーカユニット80の機能により、1つまたは複数の電池ユニット30の温度が適正範囲内か否かを判定する、
(e)制御部70やブレーカユニット80の機能により、1つまたは複数の電池ユニット30に欠陥が生じているか否かを判定する、
(f)制御部70やブレーカユニット80の機能により、ある電池ユニット30について当該電池ユニットがどの程度使用されたかを判定し、それに基づき交換が必要が否かを判定する。
ラック10は、図3および図4に示すように、基台部21と、その四隅部に立てられた支柱11と、支柱11の上部に取り付けられた天板22とを備え、全体として略縦長直方体の収容スペースを形成するものである。ラック10は、また、左右に2本ずつ配置された内側支柱12を有している。保持プレート15L、15Rは、電池シェルフアセンブリ50を保持するための部材であって、隣接する2本の内側支柱12に略水平に架かるように設けられている。一対の保持プレート15L、15Rによって電池シェルフアセンブリ50の底面両端部が保持される。
以下、電池シェルフアセンブリ50の構成について詳細に説明する。
(a)電池ユニット30の個数に応じた電力を出力する、また、所定のタイミングで電池ユニット30の充電を行う、
(b)信号ライン(不図示)を介して各電池ユニット30に対する電気的信号の入出力が行われる、
(c)電池ユニット30の冷却のために所定のタイミングで冷却ファン64の駆動が行われる。
次に、本実施形態の蓄電システム1の組立方法について説明する。なお、下記する組立方法は本発明の一例に過ぎず、その手順等によって本発明が何ら限定されるものではない。
〔他の形態等について〕
以上、本発明の一形態について図面を参照して説明したが、本発明は上記に限定されるものではなく種々変更可能である。
(b)上記例では電力用のコネクタと信号用のコネクタの両方をフローティングコネクタとした構成を示したが、いずれか一方のみをフローティングコネクタとしてもよい。
(c)上記例ではフローティングコネクタの可動側コネクタ部材をシェルフ側に配置し、固定側コネクタ部材を電池ユニット側に配置したが、逆に、可動側コネクタ部材を電池ユニット側に配置し、固定側コネクタ部材をシェルフ側に配置してもよい。このような変更は、電力用コネクタおよび信号用コネクタの一方または両方に適用可能である。
(e)電池の接続形態は直列接続に限らず、電池ユニットの少なくとも一部が並列に接続される、または、シェルフ同士が並列に接続されるといったように種々の接続形態を採用しうる。
(f)図7の背面コネクタ部材181に関し、横置きではく縦置きで設けられていてもよい。
(g)ラック10は1つに限らず、互いに直列または並列に電気的接続された2以上のラック10が配置されていてもよい。ラック10同士は離れていてもよいし、隣接して配置されてもよい。
(i)ブラケット部材17を少なくとも前後方向に移動できるようにするために、連結片26の丸孔26bを長孔としてもよい。
(j)ブラケット部材17を前方に付勢するための付勢部材(例えばスプリング等)が設けられていてもよい。
1.複数の電池ユニットを収容するための電池シェルフと、
少なくとも1つの前記電池シェルフが取り付けられるラックと、
前記電池シェルフと前記ラックとの電気的接続を行うコネクタと、
を備えるラック構造であって、
前記コネクタは、前記電池シェルフの背面に設けられた第1のコネクタ部材と、前記ラック側に設けられた第2のコネクタ部材とを有する、ラック構造。
前記第2のコネクタ部材が可動側コネクタ部材である、
上記記載のラック構造。
固定側コネクタ部材にそのプラグ部が挿入される凹部が形成され、
少なくとも前記プラグ部の先端にテーパ部が形成されている、上記記載のラック構造。
前記第2のコネクタ部材が取り付けられる支持部材と、
その支持部材をラックの一部に連結する連結片と、
を有する、上記記載のラック構造。
前記電池シェルフに収容された複数の電池ユニットと、
を備える蓄電システム。
前記複数の電池ユニットの動作を制御する制御手段を備え、
前記制御手段が、下記のうち少なくとも1つの処理を行うように構成されている:
1つまたは複数の電池ユニットの温度が適正範囲内か否かを判定する、
1つまたは複数の電池ユニットに欠陥が生じているか否かを判定する、
ある電池ユニットについて当該電池ユニットがどの程度使用されたかを判定し、それに基づき交換が必要が否かを判定する、蓄電システム。
前記電池シェルフの背面には第1のコネクタ部材が設けられ、前記ラック側には第2のコネクタ部材が設けられ、
(a)電池シェルフをラック内へと直線的に移動させるステップと、
(b)前記電池シェルフを前記ラックの所定の取付け位置まで移動させる間に、前記第1のコネクタ部材と第2のコネクタ部材とを接続させるステップと、
を有するラック構造の組立方法。
10 ラック
11 支柱
12 内側支柱
15L、15R 保持プレート
17 ブラケット部材(保持手段)
21 基台部
22 天板
25 支持部材
25a 開口部
26 連結片
26a 長孔
26b 丸孔
30 電池ユニット
31 筺体
32 前面プレート
33 ハンドル
37 固定ネジ
50 電池シェルフアセンブリ
53a、53b ガイド部材
55 電池シェルフ
62 可撓性配線
64 冷却ファン
70 制御部
80 ブレーカユニット
120 電力用コネクタ
121 固定側コネクタ部材
122 ベース部
123 凹部
123s テーパ部
131 可動側コネクタ部材
132 ベース部
135 プラグ部
135s テーパ部
138 取付け部
138g ギャップ
160 信号用コネクタ
161 コネクタ部材
180 電力用コネクタ
181 背面コネクタ部材
191 相手側コネクタ部材
191p、191q 接続端子
S 固定ネジ
Claims (12)
- 複数の電池ユニットを収容するための電池シェルフと、
少なくとも1つの前記電池シェルフが取り付けられるラックと、
前記電池シェルフと前記ラックとの電気的接続を行うコネクタと、
を備えるラック構造であって、
前記コネクタは、前記電池シェルフの背面に設けられた第1のコネクタ部材と、前記ラック側に設けられた第2のコネクタ部材とを有する、ラック構造。 - 前記コネクタが、第1および第2のコネクタ部材の相対的な位置の誤差を吸収するためのフローティング構造を有するフローティングコネクタである、請求項1に記載のラック構造。
- 前記フローティング構造が、(i)上下方向、左右方向、および斜め方向の少なくとも1つ、もしくは、(ii)上下方向、左右方向、斜め方向、および前後方向の少なくとも1つの位置の誤差を吸収する、請求項2に記載のラック構造。
- 前記第1のコネクタ部材が固定側コネクタ部材であり、
前記第2のコネクタ部材が可動側コネクタ部材である、
請求項1~3のいずれか一項に記載のラック構造。 - 可動側コネクタ部材にプラグ部が形成され、
固定側コネクタ部材にそのプラグ部が挿入される凹部が形成され、
少なくとも前記プラグ部の先端にテーパ部が形成されている、請求項4に記載のラック構造。 - 前記第2のコネクタ部材を保持している保持手段が、少なくとも前記電池シェルフの移動方向に沿う方向に可動に構成され、これにより、第1および第2のコネクタ部材同士の位置の誤差が吸収される、請求項1~5のいずれか一項に記載のラック構造。
- 前記保持手段は、
前記第2のコネクタ部材が取り付けられる支持部材と、
その支持部材をラックの一部に連結する連結片と、
を有する、請求項6に記載のラック構造。 - 前記連結片が、前記ラックの一部に対して少なくとも前後方向に移動できるように構成されている、請求項7に記載のラック構造。
- 前記支持部材が、前記連結片に対して少なくとも上下方向に移動できるように構成されている、請求項7または8に記載のラック構造。
- 請求項1~9のいずれか一項に記載のラック構造と、
前記電池シェルフに収容された複数の電池ユニットと、
を備える蓄電システム。 - さらに、
前記複数の電池ユニットの動作を制御する制御手段を備え、
前記制御手段が、下記のうち少なくとも1つの処理を行うように構成されている:
1つまたは複数の電池ユニットの温度が適正範囲内か否かを判定する、
1つまたは複数の電池ユニットに欠陥が生じているか否かを判定する、
ある電池ユニットについて当該電池ユニットがどの程度使用されたかを判定し、それに基づき交換が必要が否かを判定する、蓄電システム。 - 電池ユニットを収容するための電池シェルフをラックに取り付けてラック構造を組み立てる方法であって、
前記電池シェルフの背面には第1のコネクタ部材が設けられ、前記ラック側には第2のコネクタ部材が設けられ、
(a)電池シェルフをラック内へと直線的に移動させるステップと、
(b)前記電池シェルフを前記ラックの所定の取付け位置まで移動させる間に、前記第1のコネクタ部材と第2のコネクタ部材とを接続させるステップと、
を有するラック構造の組立方法。
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Also Published As
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JPWO2014073544A1 (ja) | 2016-09-08 |
US20150333303A1 (en) | 2015-11-19 |
EP2919569A1 (en) | 2015-09-16 |
EP2919569A4 (en) | 2016-06-08 |
JP6108487B2 (ja) | 2017-04-05 |
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