WO2019221223A1 - Bloc-batterie - Google Patents

Bloc-batterie Download PDF

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Publication number
WO2019221223A1
WO2019221223A1 PCT/JP2019/019485 JP2019019485W WO2019221223A1 WO 2019221223 A1 WO2019221223 A1 WO 2019221223A1 JP 2019019485 W JP2019019485 W JP 2019019485W WO 2019221223 A1 WO2019221223 A1 WO 2019221223A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery pack
case
reinforcing member
battery
top case
Prior art date
Application number
PCT/JP2019/019485
Other languages
English (en)
Japanese (ja)
Inventor
松元隆志
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
Priority to JP2020519911A priority Critical patent/JP7480036B2/ja
Publication of WO2019221223A1 publication Critical patent/WO2019221223A1/fr

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Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a battery pack including a battery core pack having a plurality of battery cells held by a cell holder and a case for housing the battery core pack.
  • a battery core pack having a plurality of battery cells held by a cell holder, and the battery core pack And a case for housing the battery are known.
  • the case has a rectangular tube-shaped outer shell case that covers the side surface of the battery core pack, a bottom case that covers an opening on the bottom surface side of the outer shell case, and a top case that covers an opening on the upper surface side of the outer shell case.
  • the top case may be provided with a handle that can be gripped when the user carries the battery pack.
  • This type of battery pack is required to improve durability by suppressing rattling of the battery core pack in the case.
  • the support frame is preferably high in strength and rigidity so as to have excellent durability.
  • the battery pack provided with the structure where the support frame is connected to the top case is lightweight and excellent in assemblability.
  • an object of the present invention is to provide a battery pack that is lightweight and has excellent assemblability and durability.
  • One aspect of the present invention is a battery pack comprising: a battery core pack having a plurality of battery cells held by a cell holder; and a case for housing the battery core pack, wherein the battery core pack is disposed inside the case.
  • the case further includes an outer shell case provided with an opening, and a top case covering the opening, and the support frame includes a plurality of frame members, The plurality of frame members are coupled to a reinforcing member integrated with the top case.
  • the reinforcement members are connected to the plurality of frame members of the support frame, so that the plurality of frame members constitute a frame structure together with the reinforcement members.
  • the rigidity of a support frame can be improved.
  • the strength and rigidity of the reinforcing member can be increased. In this case, for example, unlike a reinforcing member that has increased strength and rigidity by providing ribs on the side edges or by increasing the thickness, the weight of the reinforcing member increases or the assembling property of the reinforcing member decreases. Can be avoided.
  • this battery pack is lightweight and excellent in assemblability and durability.
  • the integrated top case and reinforcing member can be handled as a sub-assembly. Further, by using the top case, the strength and rigidity of the reinforcing member can be increased without adding new components. These also make it possible to effectively reduce the weight of the battery pack and improve the assemblability.
  • FIG. 1 is a schematic perspective view of a battery pack according to an embodiment of the present invention. It is a disassembled perspective view of a bottom case, an outer shell case, and a top case to which a support frame and a handle are connected via a reinforcing member. It is a disassembled perspective view of a support frame, a battery core pack, a top case, a reinforcing member, a handle, and a top cover. It is a perspective view of the top case integrated with the reinforcing member.
  • FIG. 5 is a cross-sectional view taken along line VV in FIG. 4. It is a disassembled perspective view of a battery core pack.
  • the battery pack 10 shown in FIG. 1 can be suitably applied to, for example, a portable drive power supply that is detachably mounted on an electric vehicle (not shown) such as an electric assist bicycle, an electric motorcycle, or an electric vehicle. . Therefore, an example in which the battery pack 10 is mounted on an electric vehicle will be described below.
  • the vertical direction of the battery pack 10 is based on the vertical direction (the directions of arrows X1 and X2 in FIG. 1) when the battery pack 10 is mounted on an electric vehicle.
  • the present invention is not particularly limited to this, and the battery pack 10 can be applied to various devices that require electric power.
  • the battery pack 10 includes a case 12 that forms an exterior, a battery group 16 that connects two battery core packs 14 a and 14 b, and a support frame 18 that supports the battery core packs 14 a and 14 b.
  • the reinforcing member 20 connected to the support frame 18, a battery management device (BMU) 22, and a connector unit (not shown) are mainly provided.
  • Case 12 accommodates battery core packs 14a and 14b.
  • the case 12 can be formed from, for example, a metal such as aluminum, a resin (including a fiber reinforced resin), or the like.
  • the case 12 includes a bottom case 24, an outer shell case 26, a top case 28, and a top cover 30.
  • the bottom case 24 is a housing having an open upper end.
  • hollow cylindrical or truncated cone-shaped protrusions 32 that protrude toward the upper side (arrow X1 side) are provided at the four corners of the bottom surface. ing.
  • the connector portion and the like described above are accommodated in the bottom case 24.
  • the connector portion is exposed to the outside of the case 12 through, for example, a notch formed in the bottom wall of the bottom case 24, and is a power supply port of the electric vehicle or a charging device for charging the battery group 16. Connection is possible. Note that the notch, the power supply port, and the charging device are not shown. By connecting the connector part to the power supply port or the charging device, the power supply port or the charging device and the battery group 16 can be electrically connected via the BMU 22 by a lead wire (not shown) or the like.
  • the outer shell case 26 has a rectangular tube shape and covers the side surface of the battery group 16.
  • An upper opening 26 a (opening) is provided at the upper end of the outer shell case 26, and a lower opening 26 b is provided at the lower end of the outer shell case 26.
  • the bottom case 24, the outer shell case 26 and the top case 28 are integrated with the lower opening 26b covered with the bottom case 24 and the upper opening 26a covered with the top case 28.
  • the battery group 16, the support frame 18, the BMU 22, and the like are accommodated in the internal space of the case 12 formed thereby.
  • the top case 28 has a plate shape corresponding to the dimension of the upper opening 26a.
  • the top case 28 has a rectangular shape in plan view (viewed from the directions of the arrows X1 and X2). Specifically, as shown in FIGS. 2 to 5, the upper surface 28a (outer surface) of the top case 28 is arranged on both ends in the directions of arrows Y1 and Y2 along one side of the rectangular shape, and in the directions of arrows Y1 and Y2.
  • a pair of groove portions 36 extending along the directions of the arrows Z1 and Z2 orthogonal to each other are provided.
  • a rectangular plate-shaped reinforcing member 20 made of metal or the like is accommodated in each of the groove portions 36.
  • the two reinforcing members 20 are arranged in parallel to each other.
  • the reinforcing member 20 is disposed so as to overlap the top case 28 so that the thickness directions of the reinforcing member 20 and the top case 28 coincide.
  • the top case 28 is sandwiched between the support frame 18 and the reinforcing member 20.
  • the length in the extending direction of the groove portion 36 and the length in the arrow Z1 and Z2 directions of the top case 28 are the same, but the present invention is not particularly limited thereto.
  • a pair of locking portions 38 that sandwich the reinforcing member 20 between the bottom portions 36 a of the groove portions 36 are provided at both ends in the width direction (arrow Y 1, Y 2 direction) of each groove portion 36. Each is provided.
  • the set of locking portions 38 protrudes from both end edges in the width direction of the groove portion 36 toward the center side in the width direction, and extends in the extending direction of the groove portion 36. It is a ridge extending along.
  • the opposing surfaces of the pair of locking portions 38 are inclined guide surfaces 38a that are inclined in directions away from each other from the lower end toward the upper end.
  • the inclined guide surface 38 a is inclined so as to approach the bottom 36 a of the groove 36 toward the center in the width direction of the groove 36.
  • the reinforcing member 20 is disposed between the lower end surface 38 b of the locking portion 38 and the bottom portion 36 a of the groove portion 36.
  • Through holes 40 are formed in the reinforcing member 20 and the top case 28, respectively. Specifically, through holes 40 are formed at four corners of the top case 28. Moreover, the through-hole 40 is formed in the both ends of the longitudinal direction (arrow Z1, Z2 direction) of each reinforcement member 20. As shown in FIG.
  • a handle 42 is connected to the upper surface 28a side of the top case 28 via a reinforcing member 20.
  • the handle 42 is gripped by the user when the battery pack 10 is carried, for example.
  • the handle 42 includes a set of mounting plate portions 44 stacked on the set of reinforcing members 20, a set of leg portions 46 respectively erected on the set of mounting plate portions 44, and a set of And a gripping portion 48 spanned between the leg portions 46.
  • Each mounting plate portion 44 has a rectangular plate shape with a size corresponding to the size of the reinforcing member 20.
  • the set of attachment plate portions 44 extend in parallel to each other.
  • through holes 44 a that overlap the through holes 40 of the reinforcing member 20 and the top case 28 are also provided at both ends in the extending direction of the mounting plate portions 44.
  • the leg portion 46 protrudes upward from the approximate center in the extending direction of each mounting plate portion 44.
  • a grip 48 is provided between the upper ends of the pair of legs 46.
  • the top cover 30 is attached to the top of the top case 28 or the outer shell case 26, and exposes the upper side of the leg part 46 and the grip part 48, and is attached to the lower end side of the leg part 46.
  • the plate portion 44, the reinforcing member 20, and the upper surface 28a and the side surface 28b of the top case 28 are covered.
  • the top cover 30 is configured by combining a pair of divided members 30a and 30b, for example, and extends substantially in the center in the directions of arrows Z1 and Z2 in the directions of arrows Y1 and Y2. Dividing is possible by a dividing line L (see FIG. 2).
  • a pair of cutouts 50 into which the leg portions 46 of the handle 42 can be inserted are formed at the ends of the dividing members 30a and 30b on the dividing line L side.
  • one split member 30a is slid from the arrow Z1 side to the arrow Z2 side, and the other split member 30b is slid from the arrow Z2 side to the arrow Z1 side.
  • the leg part 46 is inserted in each notch 50 by making the edge part by the side of the dividing line L of a set of division member 30a, 30b mutually contact
  • the top cover 30 is mounted so as to cover the remaining portion of the handle 42 and the reinforcing member 20 and the top case 28 integrated with each other while exposing the upper side of the leg portion 46 and the grip portion 48. can do.
  • the support frame 18 is connected to the lower surface 28c (inner surface) side of the top case 28.
  • the support frame 18 is made of, for example, metal and supports the battery group 16 inside the case 12.
  • the support frame 18 includes a plurality of frame members (a first frame 56 and a second frame 58).
  • the support frame 18 is a pair of side surfaces 52 and 54 (see FIG. 3) facing each other of the substantially rectangular parallelepiped battery group 16 as described later, and a ridge line on the side surface 52 side and the vicinity thereof.
  • a second frame 58 covering a ridge line on the other side surface 54 side and a surface in the vicinity thereof.
  • Each of the first frame 56 and the second frame 58 includes a portion having a substantially L-shaped cross section orthogonal to the extending direction, and is configured by connecting the bottom member 60 and the covering member 62.
  • the bottom member 60 of the first frame 56 extends along the bottom side of the side surface 52 of the battery group 16.
  • the covering member 62 of the first frame 56 includes a pair of side portions 62a extending along a set of sides extending in the vertical direction, and an upper end portion extending along the upper side, of the sides excluding the bottom side of the side surface 52 of the battery group 16. 62b.
  • an extended portion 62 c is provided at the lower end of the side portion 62 a along a part of the bottom side of the side surface 52 of the battery group 16.
  • the bottom member 60 of the second frame 58 extends along the bottom side of the side surface 54 of the battery group 16.
  • the covering member 62 of the second frame 58 includes a pair of side portions 62a extending along a pair of sides extending in the vertical direction, and an upper end portion extending along the upper side, of the sides excluding the bottom side of the side surface 54 of the battery group 16. 62b.
  • an extending portion 62 c is provided at the lower end of the side portion 62 a along a part of the bottom side of the side surface 54 of the battery group 16.
  • a set of connecting members 66 is provided along a set of sides that are not covered by the bottom member 60 in the bottom surface of the battery group 16.
  • the connecting member 66, the bottom member 60, and the extending portion 62c of the covering member 62 are stacked in the vertical direction, and the shaft portion of the bolt 68 is inserted through the stacked portions from the upper side to the lower side.
  • bolt 68 is penetrated by the insertion hole 32a (refer FIG. 2) of the projection part 32 provided in the four corners of the bottom face of the bottom case 24 as above-mentioned.
  • the support frame is arranged so that the reinforcing member 20 follows the pair of sides 70 a and 70 b (see FIG. 3) of the upper surface 70 of the battery group 16 not covered by the upper end portion 62 b of the covering member 62 via the top case 28.
  • the positional relationship between 18 and the reinforcing member 20 is set.
  • On both end sides in the extending direction of the upper end portion 62b of the covering member 62 a convex portion 72 protruding upward and a through hole 74 overlapping the above through holes 40 and 44a are provided.
  • a space in which the head of the bolt 34 (insertion member) can be disposed between both end sides in the extending direction of the upper end portion 62 b and the upper surface 70 of the battery group 16. Is provided.
  • the shaft portion of the bolt 34 is inserted into the through-holes 74, 40, and 44a overlapped with each other from the lower side to the upper side, and a nut 75 (see FIG. 2) is provided at the tip of the shaft portion.
  • a nut 75 is provided at the tip of the shaft portion.
  • the two battery core packs 14a and 14b constituting the battery group 16 are configured in substantially the same manner. For this reason, below, with the description of the battery core pack 14a, the specific description of the battery core pack 14b is omitted. In addition, when these two battery core packs 14a and 14b are not distinguished from each other, they are also collectively referred to as a battery core pack 14.
  • the battery core pack 14 a includes a plurality of battery cells 80 and a cell holder 82.
  • the battery group 16 (battery core pack 14) is formed so as to form a space for accommodating a wiring or the like (not shown) between the battery group 16 and the cutout of the bottom case 24.
  • a rectangular parallelepiped shape in which a part of the lower end side is cut out.
  • the battery cell 80 has, for example, a cylindrical shape, and is provided with a positive electrode terminal 86 and a negative electrode terminal 88 at both ends in the axial direction.
  • the lithium ion secondary battery can be mentioned as a suitable kind of the battery cell 80, it is not limited to this in particular, For example, you may use secondary batteries, such as a nickel metal hydride battery and a nickel cadmium battery.
  • the cell holder 82 is configured by combining a positive electrode side holder 82a and a negative electrode side holder 82b, and includes a holding portion 90, a pressing plate portion 92, and a peripheral wall portion 94.
  • the holding unit 90 has a plurality of holding holes 96 and holds the battery cells 80 in a state of being inserted through the holding holes 96.
  • the holding hole 96 extends along the directions of the arrows Z1 and Z2, and exposes the positive electrode terminal 86 or the negative electrode terminal 88 of the battery cell 80 from the openings at both ends in the extending direction.
  • the respective positive terminals 86 are arranged flush with each other, and the respective negative terminals 88 are arranged flush with each other. Further, a potting material (not shown) made of an insulating resin or the like may be filled between the peripheral surfaces of the plurality of battery cells 80 held by the holding unit 90.
  • the pressing plate portion 92 is provided on each end of the holding portion 90 in the directions of arrows Z1 and Z2, and an exposed portion 98 made of a through hole is provided at a position corresponding to the opening of the holding hole 96.
  • the positive electrode terminal 86 is exposed to the outside of the cell holder 82 through the opening on one end side of the holding hole 96 and the exposed portion 98 of the positive electrode side holder 82a.
  • the negative electrode terminal 88 is exposed to the outside of the cell holder 82 through the opening on the other end side of the holding hole 96 and the exposed portion 98 of the negative electrode side holder 82b.
  • the positive electrode terminal 86 and the negative electrode terminal 88 are collectively referred to as an electrode terminal.
  • a plurality of bus bar plates 100 are attached to the holding plate 92 so as to cover the exposed portion 98 that exposes the positive electrode terminal 86 and the exposed portion 98 that exposes the negative electrode terminal 88. It is done.
  • the pressing plate portion 92 is provided with a ridge portion 102 that is interposed between the bus bar plates 100 and insulates each other.
  • Two battery core packs 14a and 14b are connected to form a battery group 16 so that the negative electrode terminal 88 side of one battery core pack 14a and the positive electrode terminal 86 side of the other battery core pack 14b face each other. Has been.
  • Each of the plurality of bus bar plates 100 connects a predetermined number of the positive terminals 86 or the negative terminals 88 in parallel, and the protruding portion 104 that enters the exposed portion 98 and contacts the electrode terminal includes, for example, It is provided by embossing or the like.
  • the peripheral wall portion 94 is provided so as to surround the holding portion 90 and the exposed portion 98.
  • a plurality of grooves 94 a into which connection end portions 106 (see FIGS. 2 and 3) of the bus bar plate 100 are respectively inserted are provided on the end surface of the peripheral wall portion 94.
  • a protruding wall 108 is provided.
  • a BMU 22 is disposed between the protruding walls 108.
  • the BMU 22 includes, for example, a control unit that controls charging / discharging of the battery core pack 14, a communication unit that communicates with the electric vehicle and the charging device, and the state of the battery core pack 14 detected from the temperature and voltage of the battery cell 80. (Not shown).
  • the handle 42 is held and the battery pack 10 is carried in the vicinity of the charging device, and the connector portion and the charging device are connected.
  • the battery cell 80 can be charged.
  • the battery pack 10 by carrying the battery pack 10 by holding the handle 42 and mounting the battery pack 10 on the electric vehicle so that the connector portion and the power supply port are connected, the battery cell 80 is discharged. Can do.
  • the reinforcing member 20 is connected to the first frame 56 and the second frame 58 of the support frame 18, so that the first frame 56 and the second frame 58 have a frame structure together with the reinforcing member 20. Constitute. Thereby, the rigidity of the support frame 18 can be increased. Further, by integrating the reinforcing member 20 with the top case 28, the strength and rigidity of the reinforcing member 20 can be increased. In this case, for example, unlike a reinforcing member (not shown) in which ribs are provided on the side edges or the thickness is increased to increase strength and rigidity, the weight of the reinforcing member 20 increases, It is possible to avoid a decrease in assembling ability.
  • the rigidity of the support frame 18 is enhanced while suppressing the increase in the weight of the battery pack 10 and the ease of assembly, and the rattling of the battery core pack 14 in the case 12 is effectively suppressed. It becomes possible. That is, the battery pack 10 is lightweight and excellent in assemblability and durability.
  • the integrated top case 28 and the reinforcing member 20 can be handled as subassemblies. Furthermore, the strength and rigidity of the reinforcing member 20 can be increased by integration with the top case 28 for closing the upper opening 26 a of the outer shell case 26. That is, an additional component for increasing the strength and rigidity of the reinforcing member 20 can be eliminated. These also make it possible to effectively reduce the weight of the battery pack 10 and improve the assemblability.
  • the reinforcing member 20 has a plate shape. With such a simple configuration, the weight of the reinforcing member 20 can be further reduced, and the reinforcing member 20 can be easily manufactured.
  • the reinforcing member 20 is not limited to a plate shape, can be integrated with the top case 28, and is interposed between the top case 28 and the support frame 18 so as to be integrated with the top case 28 and the support frame 18. Any shape can be used as long as the connection strength can be increased.
  • the top case 28 has a plate shape formed along the shape of the opening (upper opening 26 a), and the reinforcing member 20 has a thickness between the reinforcing member 20 and the top case 28.
  • the top case 28 is arranged so as to overlap the vertical direction. Thereby, the thickness of the integrated top case 28 and the reinforcing member 20 can be reduced.
  • the top case 28 sandwiches the reinforcing member 20 between the groove portion 36 that houses the reinforcing member 20 and the bottom portion 36 a of the groove portion 36 that is provided at the edge in the width direction of the groove portion 36. It has decided to have the latching
  • the locking portion 38 is a protrusion that protrudes from the edge in the width direction of the groove portion 36 toward the center in the width direction and extends along the extending direction of the groove portion 36. It was supposed to be. As a result, the top case 28 and the reinforcing member 20 can be more reliably integrated. Moreover, since the latching
  • the structure which integrates the top case 28 and the reinforcement member 20 is not limited to said groove part 36 or the latching
  • the locking portion 38 may be one or a plurality of protruding claws instead of the protrusions.
  • the locking portion 38 protrudes from the edge on both sides in the width direction of the groove portion 36 toward the center side in the width direction and extends along the extending direction of the groove portion 36. It was decided that Thus, the top case 28 and the reinforcing member 20 can be integrated more firmly by making the engaging portions 38 a pair.
  • the locking portion 38 has the inclined guide surface 38 a that approaches the bottom portion 36 a of the groove portion 36 toward the center side in the width direction of the groove portion 36. This facilitates the insertion of the reinforcing member 20 into the groove 36, and can further improve the assembling property of the battery pack 10.
  • the inclined guide surface 38a it is easy to insert the attachment plate portion 44 into the groove portion 36 when the attachment plate portion 44 of the handle 42 is laminated on the reinforcing member 20.
  • the reinforcing member 20 may be slid along the extending direction from one end portion in the extending direction of the groove portion 36, or the groove portion from above the groove portion 36.
  • the reinforcing member 20 may be fitted into the interior of 36.
  • the top case 28 is sandwiched between the support frame 18 and the reinforcing member 20. Thereby, the top case 28 and the reinforcing member 20 can be firmly integrated. Further, it is possible to facilitate the positioning of the attachment plate portion 44 of the handle 42 and the reinforcing member 20 and improve the assembling property of the battery pack 10.
  • the top case 28 has an inner surface (lower surface 28 c) facing the support frame 18 and an outer surface (upper surface 28 a) to which a handle 42 held by the user is attached. It was.
  • the reinforcing member 20 was in the form of a set of rectangular plates that are spaced from each other with respect to the outer surface of the top case 28.
  • the handle 42 includes a set of mounting plate portions 44 stacked on the set of reinforcing members 20, a set of leg portions 46 respectively standing on the set of mounting plate portions 44, and a set of leg portions. And a gripping portion 48 spanned between 46.
  • the reinforcing member 20 integrated with the top case 28, the support frame 18, and the attachment plate portion 44 are connected to each other by a connecting mechanism 76 having insertion members (bolts 34) inserted along the stacking direction. It was decided to be connected.
  • the reinforcing member 20 interposed between the handle 42 and the support frame 18 corresponds to the weight of the battery group 16. Reaction force is generated. Even if such a reaction force occurs, as described above, the strength and rigidity of the reinforcing member 20 are increased, so that the handle 42 and the support frame 18 are well connected via the reinforcing member 20. can do. That is, the durability of the battery pack 10 can be effectively improved.
  • the reinforcing member 20 may be attached to the lower surface 28c instead of the upper surface 28a of the top case 28. Further, the reinforcing member 20 is not limited to two rectangular plates, and may be one or three or more. Further, the connecting mechanism 76 is not limited to the one having the bolt 34 and the nut 75, and may be any mechanism as long as the top case 28 and the support frame 18 can be connected via the reinforcing member 20.
  • the case 12 has the top cover 30.
  • the top cover 30 exposes the grip portion 48 and covers at least a part of the set of attachment plate portions 44, the set of reinforcing members 20, and the top case 28.
  • the case 12 may not have the top cover 30.
  • the battery pack 10 includes the battery group 16 in which two battery core packs 14a and 14b are connected.
  • the battery pack 10 may include only one battery core pack 14 or may include a battery group (not shown) in which three or more battery core packs 14 are connected.
  • the support frame 18 includes the first frame 56 and the second frame 58, but the present invention is not particularly limited thereto.
  • the support frame 18 may be configured to be able to support the battery group 16 (battery core pack 14) inside the case 12.
  • the structure for connecting the support frame 18 to the bottom case 24 is not limited to the bolt 68 and the nut 69 described above.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

L'invention concerne un bloc-batterie (10) comprenant : un bloc-piles de batterie (14) ayant une pluralité de cellules (80), maintenus par un support de cellule (82) ; un boîtier (14) logeant le bloc-piles de batterie (14) ; et un cadre de support (18) pour supporter le bloc-piles de batterie (14) dans le boîtier (12). Le boîtier (12) comprend : un boîtier de coque externe (26) comprenant une ouverture supérieure (26a) ; et un boîtier supérieur (28) recouvrant l'ouverture supérieure (26a). Le cadre de support (18) comprend un premier cadre (56) et un second cadre (58). Le premier cadre (56) et le second cadre (58) sont reliés à un élément de renfort (20) intégré au boîtier supérieur (28).
PCT/JP2019/019485 2018-05-17 2019-05-16 Bloc-batterie WO2019221223A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2020519911A JP7480036B2 (ja) 2018-05-17 2019-05-16 バッテリパック

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-095275 2018-05-17
JP2018095275 2018-05-17

Publications (1)

Publication Number Publication Date
WO2019221223A1 true WO2019221223A1 (fr) 2019-11-21

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Application Number Title Priority Date Filing Date
PCT/JP2019/019485 WO2019221223A1 (fr) 2018-05-17 2019-05-16 Bloc-batterie

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JP (1) JP7480036B2 (fr)
WO (1) WO2019221223A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000243369A (ja) * 1999-02-16 2000-09-08 Furukawa Battery Co Ltd:The キュービクル式蓄電池盤並びにその設置法
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JP2006335243A (ja) * 2005-06-02 2006-12-14 Honda Motor Co Ltd 車両用電源装置
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