WO2020134977A1 - 电池包及设备 - Google Patents

电池包及设备 Download PDF

Info

Publication number
WO2020134977A1
WO2020134977A1 PCT/CN2019/123692 CN2019123692W WO2020134977A1 WO 2020134977 A1 WO2020134977 A1 WO 2020134977A1 CN 2019123692 W CN2019123692 W CN 2019123692W WO 2020134977 A1 WO2020134977 A1 WO 2020134977A1
Authority
WO
WIPO (PCT)
Prior art keywords
fixing member
battery module
upper plate
lower fixing
battery pack
Prior art date
Application number
PCT/CN2019/123692
Other languages
English (en)
French (fr)
Inventor
王衡
季进清
张文辉
钱木
项延火
Original Assignee
宁德时代新能源科技股份有限公司
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 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Publication of WO2020134977A1 publication Critical patent/WO2020134977A1/zh

Links

Images

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
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • 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
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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

  • This application relates to the field of batteries, and more particularly to a battery pack and equipment.
  • Battery packs are usually arranged in a single layer with battery modules.
  • the battery pack needs to make full use of the height space of the limited projection in the Z direction, and if necessary, the battery modules are arranged in a two-layer manner. Since the double-layer battery modules need to be stacked in the Z direction, the support stability of the double-layer battery modules becomes very important.
  • the object of the present application is to provide a battery pack and a device that can provide battery modules in a double-layer manner and can improve the support stability of the double-layer battery modules.
  • the present application provides a battery pack including a double-layer battery module bracket, an upper battery module, a lower battery module, and a support mechanism.
  • the double-layer battery module bracket includes: an upper plate; a lower fixing piece located below the upper plate and supporting the upper plate; the lower fixing piece and the upper plate form a lower receiving space; the upper fixing piece is located above the lower fixing piece and fixed on the upper Board, the upper fixing member and the upper board form an upper receiving space, the projections of the lower surface of the upper fixing member and the upper surface of the lower fixing member in the Z direction at least partially overlap; and the fasteners, the projections in the Z direction overlap Within the range, the upper fixing piece, the upper plate and the lower fixing piece are passed along the Z direction, and the lower part of the fastener exposed from the lower fixing piece is fixed on the support mechanism.
  • the upper battery module is accommodated in the upper accommodation space and supported on the upper plate; the lower battery module is accommodated in the lower accommodation space; the support mechanism supports the lower battery module and
  • the periphery of the upper plate has a first side along the X direction;
  • the lower fixing member includes a first lower fixing member;
  • the upper fixing member includes a first upper fixing member, and the first upper fixing member is located on the periphery of the upper board On the first side, the first upper fixing member corresponds to the first lower fixing member;
  • the first upper fixing member is located above the first lower fixing member and the first upper fixing member is displaced relative to the first lower fixing member in the Y direction, so that the first The projected part of the lower surface of the upper fixing member and the upper surface of the first lower fixing member in the Z direction overlap, and the fastener passes through the first upper fixing member and the Fix it.
  • corresponding first upper fixing pieces and first lower fixing pieces are provided on both sides of the X-direction center line of the upper plate.
  • the misalignment of the first upper fixing member on the left side of the X direction center line of the upper board relative to the corresponding first lower fixing member in the Y direction corresponds to the first upper fixing member on the right side of the X direction center line of the upper board
  • the misalignment of the first lower fixing member in the Y direction is opposite; the corresponding fastener passes through the corresponding first upper fixing member and the first lower fixing member in the Z direction within the range of the projection overlap of the corresponding Z direction.
  • the double-layer battery module bracket further includes a first locking member juxtaposed with the corresponding fastener, and the first locking member passes along the Z direction outside the range where the projections in the Z direction overlap The first upper fixing piece and the upper plate are passed to fix the first upper fixing piece to the upper plate.
  • the double-layer battery module bracket further includes a second locking member, the second locking member is juxtaposed with the corresponding fastener, and the second locking member passes along the Z direction outside the range where the projections in the Z direction overlap Pass the upper plate and the first lower fixing piece to fix the first upper plate and the first lower fixing piece on the support mechanism.
  • the first lower fixing member is integrally formed with a first convex portion, and the first convex portion protrudes from the bottom of the first lower fixing member away from the second locking member;
  • the double-layer battery module bracket further includes a third The locking member and the third locking member pass through the first convex portion in the Z direction to fix the first lower fixing member on the support mechanism.
  • the upper fixing member further includes a second upper fixing member, and the second upper fixing member is located on the first side in the X direction of the periphery of the upper plate;
  • the lower fixing member includes a second lower fixing member, and a second upper fixing member Located directly above the second lower fixing member, so that the projection of one of the lower surface of the second upper fixing member and the upper surface of the second lower fixing member in the Z direction falls into the lower surface of the second upper fixing member and the second The other of the upper surfaces of the lower fixing member is projected in the Z direction, and the corresponding fastener passes through the second upper fixing member and the second lower fixing member in the Z direction within a range where the projections of the Z direction overlap.
  • the peripheral edge of the upper plate has a second side along the Y direction;
  • the double-layer battery module bracket further includes a lower support, the lower support is located on the second side of the peripheral edge of the upper plate along the Y direction, and the lower support
  • the Z-direction upper side of the member is fixedly connected to the upper plate, and the Z-direction lower side of the lower support is fixedly connected to the support mechanism.
  • the upper plate has a receiving groove at the periphery, and the bottom of the upper fixing member is received in the receiving groove.
  • the upper plate includes flanges protruding from each other formed in the receiving groove along the Y direction
  • the upper fixing member has two protrusions at the bottom that protrude outward from both sides of the Y direction
  • the upper fixing member The portion between the two protrusions at the bottom of the housing is accommodated in the accommodating groove together with the two protrusions, and each flange stops the corresponding protrusion from above.
  • both the upper battery module and the lower battery module have outwardly protruding protrusions, the top surface of the upper fixing member abuts under the corresponding protrusion in the Z direction, and the bottom surface of the lower fixing member along the Z The direction abuts on the corresponding protrusion, and the fastener also passes through the protrusion of the upper battery module and the protrusion of the lower battery module in the Z direction.
  • the present application provides a device including the above battery pack, and the battery pack is used to provide electrical energy.
  • the fastener passes through the upper fixing member, the upper plate, and the lower fixing member along the Z direction within the range of overlapping projections in the Z direction, and the lower part of the fastener exposed from the lower fixing member is fixed to
  • the support mechanism supports the lower battery module and the lower fixing member, and the upper battery module is supported on the upper plate, so that the battery pack of the present application can set the battery module in a double-layer manner.
  • the fastener passes through the upper fixing member, the upper plate, and the lower fixing member in the Z direction within the overlapping range of the projection in the Z direction, and is fixed to the supporting mechanism, so that the fixing member, the upper plate, the lower fixing member, and the supporting mechanism Becomes one body, improves the structural rigidity, the fastener can effectively resist the impact from the X direction and the Y direction; the fixing parts, the upper plate, the lower fixing part and the supporting mechanism are connected by the fasteners, which can make the impact through The transmission of the fasteners is quickly and effectively dispersed, so that the battery pack according to the present application can improve the support stability of the double-layer battery module.
  • FIG. 1 is a partial perspective view of a battery pack according to the present application.
  • FIG. 2 is a left side view of the assembly of the double-layer battery module bracket of the battery pack of FIG. 1 and the upper battery module and the lower battery module.
  • FIG. 3 is a right side view of the assembly of the double-layer battery module bracket of the battery pack of FIG. 1 and the upper battery module and the lower battery module.
  • FIG. 4 is a perspective view of a support mechanism of a battery pack according to the present application, in which a part of a single-layer battery module bracket is shown.
  • FIG. 5 is a simplified diagram of FIG. 1 in which the upper battery module and the lower battery module are removed to clearly show the double-layer battery module bracket of the battery pack.
  • FIG 6 is an assembled perspective view of the double-layer battery module bracket of the battery pack according to the present application, with the heat exchange plate removed.
  • FIG. 7 is a side view of FIG. 6.
  • FIG. 8 is a plan view of FIG. 6.
  • FIG. 9 is a perspective view of an upper plate of a double-layer battery module bracket.
  • FIG. 1 is a partial perspective view of a battery pack according to the present application.
  • 2 is a left side view of the assembly of the double-layer battery module bracket of the battery pack of FIG. 1 and the upper battery module and the lower battery module.
  • 3 is a right side view of the assembly of the double-layer battery module bracket of the battery pack of FIG. 1 and the upper battery module and the lower battery module.
  • 4 is a perspective view of a support mechanism of a battery pack according to the present application, in which a part of a single-layer battery module bracket is shown.
  • the battery pack includes a double-layer battery module bracket M1, an upper battery module M2, a lower battery module M3, and a support mechanism M4.
  • the battery pack may further include a single-layer battery module bracket M5.
  • the double-layer battery module bracket M1 includes an upper plate 1, a lower fixing member 2, an upper fixing member 3, and a fastener 4.
  • the projections of the lower surface of the upper fixing member 3 and the upper surface of the lower fixing member 2 in the Z direction at least partially overlap.
  • the fastener 4 passes through the upper fixing member 3, the upper plate 1 and the lower fixing member 2 along the Z direction within a range where the projection in the Z direction overlaps, and the lower portion of the fastener 4 exposed from the lower fixing member 2 is fixed to the support Institution M4.
  • both the upper battery module M2 and the lower battery module M3 have protrusions 101a protruding outward, and the top surface of the upper fixing member 3 abuts under the corresponding protrusions 101a in the Z direction, and the lower fixing member 2
  • the upper battery module M2 and the lower battery module M3 are fixed together, which is beneficial to improve the structural stability of the upper battery module M2 and the lower battery module M3, thereby ensuring the upper battery module M2 and the lower battery module M3 Work stability.
  • the upper battery module M2 and the lower battery module M3 each include a plurality of arranged batteries 100, end plates 101 located at both ends of the plurality of batteries 100, and a plurality of batteries 100 and terminals
  • the plate 101 is tied with a cable tie 102 tightly.
  • the protrusion 101a is provided on the corresponding end plate 101, which is beneficial to improve the integration of components and reduce costs.
  • the battery 100 generally includes a case, an electrode assembly and an electrolyte housed in the case.
  • the electrode assembly includes a positive electrode sheet, a negative electrode sheet, and a separator.
  • the battery 100 may be a can-type (or hard-shell) battery, as shown in FIG.
  • the case includes a top cover and a case assembled with the top cover; or the battery 100 may be a pouch-type (soft-pack) battery (not shown) Out), the housing is made of encapsulation film (such as aluminum-plastic film).
  • the double-layer battery module bracket M1 further includes a first locking member 5, a second locking member 6, a third locking member 7, and a fourth locking member 8.
  • the double-layer battery module bracket M1 further includes a lower support 9.
  • the supporting mechanism M4 supports the lower battery module M3 and the lower fixing member 2. In the example shown in FIG.
  • the supporting mechanism M4 includes: a bottom plate M41 that supports the lower battery module M3 from below; and an inner peripheral frame M42 that is fixedly connected to the bottom plate M41 and supports the lower fixing member 2 from below and the fastener 4 Is fixed to the inner frame M42.
  • the inner surrounding frame M42 may adopt an integrated structure or a plurality of and be welded together in sequence.
  • the supporting mechanism M4 further includes an outer frame M43, surrounding the inner frame M42 and fixedly connected with the inner frame M42.
  • the single-layer battery module bracket M5 and the support mechanism M4 are side by side and connected together to support a single-layer battery module (not shown).
  • the double-layer battery module holder of the battery pack according to the present application is explained in more detail below.
  • FIG. 5 is a simplified diagram of FIG. 1 with the upper battery module and the lower battery module removed to clearly show the double-layer battery module bracket of the battery pack.
  • FIG. 6 is an assembled perspective view of the double-layer battery module bracket of the battery pack, with the heat exchange plate removed. 7 is a side view of FIG. 6. 8 is a plan view of FIG. 6. 9 is a perspective view of an upper plate of a double-layer battery module bracket of a battery pack.
  • the peripheral edge 10 of the upper plate 1 has a first side SX in the X direction and a second side SY in the Y direction, as shown in FIGS. 6 and 8.
  • the upper plate 1 further includes a receiving groove 11 at the peripheral edge 10, as shown in FIG. 9.
  • the upper plate 1 also has a sheet body 12 protruding from the second side SY, as shown in FIGS. 6 and 8.
  • the upper plate 1 further includes flanges 13 formed in the receiving groove 11 in the Y direction and protruding relative to each other, as shown in FIG. 9.
  • the upper plate 1 further includes a heat exchange plate 14 that exchanges heat with the upper battery module M2.
  • the heat exchange plate 14 shown in the figure may be eliminated, and different heat exchange means with different installation positions and installation modes may be used.
  • the receiving slot 11 includes a first receiving slot 111 and a second receiving slot 112.
  • the first accommodating groove 111 has a first upper opening 111a and a first side opening 111b, the first upper opening 111a opens upward and opens outward toward the side of the peripheral edge 10 to form a C-shape, and the first side opening 111b faces the side of the peripheral edge 10 Open outward.
  • the second receiving groove 112 has a second upper opening 112a and a second side opening 112b, the second upper opening 112a is opened upward and toward the side of the peripheral edge 10 to form a C-shape, and the second side opening 112b is outward toward the side of the peripheral edge 10 Opening.
  • the sheet body 12 abuts against the top surface of the lower support 9 from above and is fixedly connected together.
  • the sheet body 12 is a flat plate, but it is not limited thereto.
  • the sheet body 12 may be a U-shaped bent plate.
  • the flange 13 of the upper plate 1 includes a first flange 131 and a second flange 132.
  • the first flange 131 is formed in the first upper opening 111a to protrude relative to each other in the Y direction.
  • the second flange 132 is formed to protrude relative to each other in the Y direction at the second upper opening 112a.
  • the lower fixing member 2 is located below the upper board 1 and supports the upper board 1.
  • the lower fixing member 2 and the upper board 1 enclose a lower receiving space RL, and the lower battery module M3 is housed in the lower receiving space RL, as shown in FIG. More specifically, referring to FIGS. 6 and 7, the lower fixing member 2 includes a first lower fixing member 21.
  • the lower fixing member 2 further includes a second lower fixing member 22.
  • the first lower fixing member 21 is integrally formed with a first convex portion 211 that protrudes from the bottom of the first lower fixing member 21 away from the second locking member 6.
  • the second lower fixing member 22 is integrally formed with a second convex portion 221 that protrudes outward from the bottom of the second lower fixing member 22.
  • the upper fixing member 3 is located above the lower fixing member 2 and is fixed to the upper board 1.
  • the upper fixing member 3 and the upper board 1 form an upper receiving space RU, as shown in FIG. 5.
  • the upper battery module M2 is accommodated in the upper accommodation space RU and supported on the upper plate 1.
  • the upper fixing member 3 includes a first upper fixing member 31.
  • the upper fixing member 3 further includes a second upper fixing member 32.
  • Both the first upper fixing member 31 and the second upper fixing member 32 can be made of die-casting aluminum alloy pieces, so that the light-weight but high-strength nature of the die-casting aluminum alloy pieces is used to improve the weight of the double-layer battery module bracket Impact resistance of M1.
  • the first upper fixing member 31 corresponds to the first lower fixing member 21.
  • the first upper fixing member 31 is located on the first side SX of the peripheral edge 10 of the upper plate 1.
  • the first upper fixing member 31 is located above the first lower fixing member 21 and the first upper fixing member 31 is displaced relative to the first lower fixing member 21 in the Y direction, so that the lower surface 310 of the first upper fixing member 31 and the first lower fixing member 31
  • the projection surface of the upper surface 210 of the fixing member 21 in the Z direction partially overlaps, and the corresponding fastener 4 passes through the first upper fixing member 31 and the first lower fixing member 21 along the Z direction within the range of the overlapping projection in the Z direction .
  • the first upper fixing member 31 is displaced relative to the first lower fixing member 21 in the Y direction.
  • the two The center of gravity of the line will be inclined with respect to the Z direction, which helps to disperse the impact from the Z direction (for example, the electric car travels on a bumpy road), and the first upper fixing member 31 and the first lower fixing member 21 will not directly face each other
  • the impact in the Z direction is collectively transmitted via the upper plate 1, but a part is transmitted within the range where the projections in the Z direction overlap, and the random random transmission is performed outside the range where the projections in the Z direction overlap.
  • the second upper fixture 32 is located on the first side SX in the X direction of the peripheral edge 10 of the upper plate 1.
  • the second upper fixing member 32 is located directly above the second lower fixing member 22, so that the projection of one of the lower surface 320 of the second upper fixing member 32 and the upper surface 220 of the second lower fixing member 22 in the Z direction falls into
  • the other of the lower surface 320 of the second upper fixing member 32 and the upper surface 220 of the second lower fixing member 22 is in the projection in the Z direction (in other words, the part relative to the front overlaps, this case can be called all Overlap)
  • the corresponding fastener 4 passes through the second upper fixing member 32 and the second lower fixing member 22 along the Z direction within a range where the projection of the Z direction overlaps.
  • the left and right center lines CX of the upper plate 1 are provided with corresponding first upper fixing members 31 and first lower fixing members twenty one.
  • the first upper fixing member 31 on the left side of the X direction center line CX of the upper board 1 is misaligned with the corresponding first lower fixing member 21 in the Y direction from the right side of the upper board 1 on the right side of the X direction center line CX
  • An upper fixing member 31 is oppositely displaced in the Y direction relative to the corresponding first lower fixing member 21.
  • the corresponding fastener 4 passes through the corresponding first upper fixing member 31 and the first lower fixing member 21 along the Z direction within a range where the projections in the corresponding Z direction overlap.
  • the misalignment of the left and right sides of the center line CX in the X direction is reversed, which is beneficial to increase the dispersion direction of the aforementioned impact (ie, increase the positive and negative directions of the Y direction); in addition, it is also conducive to symmetrical design.
  • the first upper fixing member 31 and the second upper fixing member 32 on the first side SX opposite to the peripheral edge 10 of the upper plate 1 are symmetrical in position and shape with respect to the Y-direction center line CY of the upper plate 1 .
  • the second upper fixing member 32 and the two first upper fixing members 31 located on the same first side SX of the peripheral edge 10 of the upper board 1 are symmetrical in position and shape with respect to the X-direction center line CX of the upper board 1.
  • the four upper corners of the periphery 10 of the upper plate 1 where the Y direction and the X direction intersect are provided with first upper fixing members 31.
  • the structure shown in Figure 6 is conducive to symmetrical design.
  • the upper fixture 3 has two protrusions P at the bottom protruding outward from both sides in the Y direction, and the portion of the bottom of the upper fixture 3 between the two protrusions P and the two protrusions P are accommodated in In the receiving groove 11, each flange 13 stops the corresponding protrusion P from above, thereby improving the structural stability in the Z direction.
  • the protrusion P includes a first protrusion 311.
  • the protrusion P also includes a second protrusion 321.
  • the first protrusions 311 are located at the bottom of the first upper fixing member 31 and protrude outward from both sides of the first upper fixing member 31 in the Y direction, and the bottom of the first upper fixing member 31 is located at the two first protrusions 311
  • the portion between the two first protrusions 311 is accommodated in the first accommodating groove 111. Further, the portion of the bottom of the first upper fixing member 31 between the two first protrusions 311 and the two first protrusions 311 are received in the first receiving groove 111 through the first side opening 111b, each first The flange 131 stops the corresponding first protrusion 311 from above, so as to realize detachable installation and positioning.
  • the portions above the two first protrusions 311 of the first upper fixing member 31 are trapezoidal, which is beneficial to weight reduction and weight reduction; it is also beneficial to lower the center of gravity and improve the double-layer battery module bracket The stability of M1.
  • the second protrusion 321 is located at the bottom of the second upper fixing member 32 and protrudes outward from the opposite Y-direction sides, respectively, and the portion of the bottom of the second upper fixing member 32 between the two second protrusions 321 together
  • the two second protrusions 321 are accommodated in the second accommodation groove 112. Further, the portion of the second upper fixing member 32 and the bottom between the two second protrusions 321 and the two second protrusions 321 are accommodated in the second accommodation groove 112 through the second side opening 112b, each The two flanges 132 stop the corresponding second protrusions 321 from above, so as to realize detachable installation and positioning.
  • the portions above the two second protrusions 321 of the second upper fixing member 32 are trapezoidal. Similarly, it is beneficial to weight reduction and weight reduction; it is also beneficial to lower the center of gravity and improve the double-layer battery Stability of module bracket M1.
  • the fastener 4 can be in the form of bolts and nuts to facilitate disassembly, adjustment of impact strength and tightening force.
  • the first locking member 5 is juxtaposed with the corresponding fastener 4.
  • the first locking member 5 passes through the first upper fixing member 31 and the upper plate 1 in the Z direction outside the range where the projections in the Z direction overlap, so as to fix the first upper fixing member 31 to the upper plate 1.
  • the first locking member 5 helps to further enhance the impact resistance of the double-layer battery module bracket M1 and improve the stability of the first upper fixing member 31.
  • the first locking member 5 can be in the form of bolts and nuts to facilitate disassembly and assembly and adjustment of tightening force.
  • the second locking member 6 is juxtaposed with the corresponding fastener 4, and the second locking member 6 passes through the upper plate 1 and along the Z direction outside the range where the projections in the Z direction overlap
  • the first lower fixing member 21 fixes the first upper plate 1 and the first lower fixing member 21 to the supporting mechanism M4.
  • the second locking member 6 helps to further enhance the impact resistance of the double-layer battery module bracket M1 and improve the stability of the first lower fixing member 21.
  • the second locking member 6 may be in the form of bolts and nuts to facilitate disassembly and assembly and adjustment of tightening force.
  • the third locking member 7 passes through the first convex portion 211 in the Z direction to fix the first lower fixing member 21 to the support mechanism M4 (more specifically, the inner peripheral frame M42) on.
  • the third locking member 7 helps to further enhance the impact resistance of the double-layer battery module bracket M1 and improve the stability of the first lower fixing member 21, especially with the second When the locking pieces 6 are used in combination.
  • the third locking member 7 also passes through the protrusion 101a of the lower battery module M3, so that on the basis of the corresponding fastener 4 passing through the protrusion 101a of the lower battery module M3 Improve the stability of the lower battery module M3.
  • the third locking member 7 can be in the form of bolts and nuts to facilitate disassembly and assembly and adjustment of the tightening force.
  • the fourth locking member 8 passes through the second convex portion 221 of the second lower fixing member 22 in the Z direction to fix the second lower fixing member 22 to the support mechanism M4 (more specifically The ground is on the inner frame M42).
  • the fourth locking member 8 helps to further enhance the impact resistance of the double-layer battery module bracket M1 and improve the stability of the second lower fixing member 22.
  • the fourth locking member 8 may be in the form of bolts and nuts to facilitate disassembly and assembly and adjustment of tightening force.
  • the lower support 9 is located on the second side SY of the peripheral edge 10 of the upper plate 1 in the Y direction.
  • the upper side of the lower support 9 in the Z direction is fixedly connected to the upper plate 1 (specifically, the sheet body 12), and the lower side of the lower support 9 in the Z direction is fixedly connected to the support mechanism M4 (more specifically, the inner frame M42 ).
  • the arrangement of the lower support 9 is beneficial to be strengthened to resist the impact in the Y direction.
  • the lower support 9 located on the second side SY opposite to the peripheral edge 10 of the upper plate 1 is symmetrical in position and shape with respect to the X-direction center line CX of the upper plate 1. Referring to FIG.
  • the batteries 100 of the upper battery module M2 are arranged along the X direction, and the upper plate 1 will deflect downward at the center line CY in the Y direction due to the batteries 100 of this arrangement, and the lower support 9 is located at the center line in the Y direction In the CY position, sufficient support can be provided to prevent the upper plate 1 from flexing downward, thereby improving the positional stability of the upper battery module M2 and the structural stability of the double-layer battery module bracket M1.
  • the lower side of the lower support 9 in the Z direction has protrusions 91 protruding outward from opposite side surfaces in the X direction, and each protrusion 91 abuts against and supports the support mechanism M4 (more specifically, the inner frame M42) from above ( For example, by screwing or gluing together, the protrusion 91 can increase the contact area of the support mechanism M4 and enhance the stability of the support of the lower support 9 on the upper plate 1.
  • the lower support 9 can be made of extruded aluminum alloy profile, which can not only reduce the weight, but also ensure the support strength, impact resistance and torsion resistance.
  • the fastener 4 passes through the upper fixing member 3, the upper plate 1 and the lower fixing member 2 along the Z direction within a range where the projections in the Z direction overlap, and the fastener 4
  • the exposed lower part of the fixing member 2 is fixed on a supporting mechanism M4, and the supporting mechanism M4 supports the lower battery module M3 and the lower fixing member 2, and the upper battery module M2 is supported on the upper plate 1, so that the battery pack of the present application can be double-layered Battery module.
  • the fastener 4 passes through the upper fixing member 3, the upper plate 1 and the lower fixing member 2 in the Z direction within the range where the projection in the Z direction overlaps and is fixed to the support mechanism M4, the fixing member 3 and the upper plate 1 are made ,
  • the lower fixing member 2 and the supporting mechanism M4 are integrated, which improves the structural rigidity, the fastener 4 can effectively resist the impact from the X direction and the Y direction, the fixing member 3, the upper plate 1, the lower fixing member 2 and the support
  • the mechanism M4 is connected by the fastener 4, so that the impact received by the fastener 4 can be quickly and effectively dispersed, so that the battery pack according to the present application can improve the stability of the double-layer battery module bracket M1.

Landscapes

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

Abstract

一种电池包及包括电池包的设备，电池包包括双层电池模组支架（M1）、上层电池模组（M2）、下层电池模组（M3）以及支撑机构（M4）。双层电池模组支架（M1）包括：上板（1）；下固定件（2），位于上板（1）的下方并支撑上板（1），下固定件（2）与上板（1）围成下收容空间（RL）；上固定件（3），位于下固定件（2）上方并固定于上板（1），上固定件（3）与上板（1）围成上收容空间（RU），上固定件（3）的下表面和下固定件（2）的上表面在Z方向的投影至少部分重叠；以及紧固件（4），在Z方向的投影重叠的范围内沿Z方向穿过上固定件（3）、上板（1）以及下固定件（2），紧固件（4）的从下固定件（2）露出的下部固定于支撑机构（M4）上。上层电池模组（M2）收容于上收容空间（RU）中并支撑于上板（1）上；下层电池模组（M3）收容于下收容空间（RL）中；支撑机构（M4）支撑下层电池模组（M3）和下固定件（2）。

Description

电池包及设备 技术领域
本申请涉及电池领域，更具体地涉及一种电池包及设备。
背景技术
电池包通常采用单层方式设置电池模组。当用电设备(例如电动汽车)的用电要求比较高(例如增加续航能力)时，电池包需要充分利用Z方向有限投影的高度空间，必要时采用双层方式设置电池模组。由于双层的电池模组需要在Z方向叠置，所以双层的电池模组的支撑稳定性变得非常重要。
发明内容
鉴于背景技术中存在的问题，本申请的目的在于提供一种电池包及设备，其能够以双层方式设置电池模组且能够提高双层电池模组的支撑稳定性。
为了实现上述目的，一方面，本申请提供了一种电池包，其包括双层电池模组支架、上层电池模组、下层电池模组以及支撑机构。双层电池模组支架包括：上板；下固定件，位于上板的下方并支撑上板，下固定件与上板围成下收容空间；上固定件，位于下固定件上方并固定于上板，上固定件与上板围成上收容空间，上固定件的下表面和下固定件的上表面在Z方向的投影至少部分重叠；以及紧固件，在所述Z方向的投影重叠的范围内沿Z方向穿过上固定件、上板以及下固定件，紧固件的从下固定件露出的下部固定于支撑机构上。上层电池模组收容于上收容空间中并支撑于上板上；下层电池模组收容于下收容空间中；支撑机构支撑下层电池模组和下固定件。
在一实施例中，上板的周缘具有沿X方向的第一侧；下固定件包括第一下固定件；上固定件包括第一上固定件，第一上固定件位于上板的周缘的第一侧，第一上固定件与第一下固定件对应；第一上固定件位于第一下固定件的上方且第一上固定件相对第一下固定件沿Y方向错位，以使第一上固定件 的下表面和第一下固定件的上表面在Z方向的投影部分重叠，紧固件在所述Z方向的投影重叠的范围内沿Z方向穿过第一上固定件和第一下固定件。
在一实施例中，在上板的周缘的同一第一侧，上板的X方向中心线的左右均设有对应的第一上固定件和第一下固定件。其中，上板的X方向中心线的左侧的第一上固定件相对对应的第一下固定件沿Y方向的错位与上板的X方向中心线的右侧的第一上固定件相对对应的第一下固定件沿Y方向的错位相反；对应的紧固件在对应的Z方向的投影重叠的范围内沿Z方向穿过对应的第一上固定件和第一下固定件。
在一实施例中，双层电池模组支架还包括第一锁定件，第一锁定件与对应的紧固件并列，第一锁定件在所述Z方向的投影重叠的范围外沿Z方向穿过第一上固定件和上板，以将第一上固定件固定于上板。
在一实施例中，双层电池模组支架还包括第二锁定件，第二锁定件与对应的紧固件并列，第二锁定件在所述Z方向的投影重叠的范围外沿Z方向穿过上板和第一下固定件，以将第一上板和第一下固定件固定于支撑机构上。
在一实施例中，第一下固定件一体形成有第一凸部，第一凸部从第一下固定件的底部远离第二锁定件的方向突出；双层电池模组支架还包括第三锁定件，第三锁定件沿Z方向穿过第一凸部，以将第一下固定件固定于支撑机构上。
在一实施例中，上固定件还包括第二上固定件，第二上固定件位于上板的周缘的X方向的第一侧；下固定件包括第二下固定件，第二上固定件位于第二下固定件正上方，以使第二上固定件的下表面和第二下固定件的上表面中的一个在Z方向的投影全部落入第二上固定件的下表面和第二下固定件的上表面中的另一个在Z方向的投影内，对应的紧固件在Z方向的投影重叠的范围内沿Z方向穿过第二上固定件和第二下固定件。
在一实施例中，上板的周缘具有沿Y方向的第二侧；双层电池模组支架还包括下支撑件，下支撑件位于上板的周缘的沿Y方向的第二侧，下支撑件的Z方向的上侧固定连接于上板，下支撑件的Z方向的下侧固定连接于支撑机构。
在一实施例中，上板具有位于周缘处的收容槽，上固定件的底部收容于收容槽内。
在一实施例中，上板包括在收容槽沿Y方向形成的彼此相对突出的凸缘，上固定件具有位于底部的分别从Y方向的两侧面向外突出的两个突部，上固定件的底部的位于两个突部之间的部分连同两个突部收容于收容槽内，各凸缘从上方止挡对应的突部。
在一实施例中，上层电池模组和下层电池模组均具有向外突出的突出部，上固定件的顶面沿Z方向贴靠在对应的突出部的下方，下固定件的底面沿Z方向贴靠在对应的突出部上方，紧固件还沿Z方向穿过上层电池模组的突出部和下层电池模组的突出部。
为了实现上述目的，另一方面，本申请提供了一种设备，其包括上述的电池包，且所述电池包用于提供电能。
本申请的有益效果如下：紧固件在所述Z方向的投影重叠的范围内沿Z方向穿过上固定件、上板以及下固定件，紧固件的从下固定件露出的下部固定于支撑机构上，支撑机构支撑下层电池模组和下固定件，上层电池模组支撑于上板上，从而本申请的电池包能够以双层方式设置电池模组。由于紧固件在所述Z方向的投影重叠的范围内沿Z方向穿过上固定件、上板以及下固定件并固定于支撑机构，从而使得固定件、上板、下固定件以及支撑机构成为一体，提高了结构上的刚度，紧固件能够有效地抵抗来自X方向和Y方向的冲击；固定件、上板、下固定件以及支撑机构通过紧固件连接，能够使得受到的冲击通过紧固件的传递进行快速有效地分散，从而根据本申请的电池包能够提高双层电池模组的支撑稳定性。
附图说明
图1是根据本申请的电池包的部分立体图。
图2是图1的电池包的双层电池模组支架与上层电池模组和下层电池模组组装的左视图。
图3是图1的电池包的双层电池模组支架与上层电池模组和下层电池模组组装的右视图。
图4是根据本申请的电池包的支撑机构的立体图，其中示出部分单层电池模组支架。
图5是图1的简化图，其中，上层电池模组和下层电池模组移除以清楚 地示出电池包的双层电池模组支架。
图6是根据本申请的电池包的双层电池模组支架的组装立体图，其中换热板去除。
图7是图6的侧视图。
图8是图6的俯视图。
图9是双层电池模组支架的上板的立体图。
其中，附图标记说明如下：
M1双层电池模组支架           310下表面
1上板                        311第一突部
10周缘                       32第二上固定件
SX第一侧                     320下表面
SY第二侧                     321第二突部
11收容槽                     4紧固件
111第一收容槽                5第一锁定件
111a第一上开口               6第二锁定件
111b第一侧开口               7第三锁定件
112第二收容槽                8第四锁定件
112a第二上开口               9下支撑件
112b第二侧开口               91突起
12片体                       RL下收容空间
13凸缘                       RU上收容空间
131第一凸缘                  P突部
132第二凸缘                  M2上层电池模组
CX X方向中心线               M3下层电池模组
CY Y方向中心线               M4支撑机构
14换热板                     M41底板
2下固定件                    M42内围框
21第一下固定件               M43外围框
210上表面                    M5单层电池模组支架
211第一凸部                  100电池
22第二下固定件     101端板
220上表面          101a突出部
221第二凸部        102扎带
3上固定件
31第一上固定件
具体实施方式
附图示出本申请的实施例，且将理解的是，所公开的实施例仅仅是本申请的示例，本申请可以以各种形式实施，因此，本文公开的具体细节不应被解释为限制，而是仅作为权利要求的基础且作为表示性的基础用于教导本领域普通技术人员以各种方式实施本申请。
此外，诸如上、下、左、右、前和后等用于说明实施例中的各构件的操作和构造的指示方向的表述不是绝对的而是相对的，且尽管各构件处于图中所示的位置时这些指示是恰当的，但是当这些位置改变时，这些方向应有不同的解释，以对应所述改变。
图1是根据本申请的电池包的部分立体图。图2是图1的电池包的双层电池模组支架与上层电池模组和下层电池模组组装的左视图。图3是图1的电池包的双层电池模组支架与上层电池模组和下层电池模组组装的右视图。图4是根据本申请的电池包的支撑机构的立体图，其中示出部分单层电池模组支架。
如图所示，电池包包括双层电池模组支架M1、上层电池模组M2、下层电池模组M3以及支撑机构M4。电池包还可包括单层电池模组支架M5。双层电池模组支架M1包括上板1、下固定件2、上固定件3、紧固件4。其中，上固定件3的下表面和下固定件2的上表面在Z方向的投影至少部分重叠。紧固件4在所述Z方向的投影重叠的范围内沿Z方向穿过上固定件3、上板1以及下固定件2，紧固件4的从下固定件2露出的下部固定于支撑机构M4上。更具体地，上层电池模组M2和下层电池模组M3均具有向外突出的突出部101a，上固定件3的顶面沿Z方向贴靠在对应的突出部101a的下方，下固定件2的底面沿Z方向贴靠在对应的突出部101a上方；相应地，紧固件4还沿Z方向穿过上层电池模组M2的突出部101a和下层电池模组M3 的突出部101a，由此将上层电池模组M2和下层电池模组M3固定在一起，从而有利于提高上层电池模组M2和下层电池模组M3的结构稳定性，进而保证上层电池模组M2和下层电池模组M3的工作稳定性。进一步地，在图中所示的示例中，上层电池模组M2和下层电池模组M3均包括排列的多个电池100、位于多个电池100两端的端板101以及将多个电池100和端板101扎紧的扎带102。相应地，突出部101a设置于对应的端板101上，有利于提高部件的集成度、降低成本。电池100通常包括壳体以及收容于壳体内的电极组件和电解质。电极组件包括正极片、负极片和隔离膜。电池100可以为罐型(或硬壳)电池，如图1所示，相应地，壳体包括顶盖以及与顶盖装配的外壳；或者电池100可以为袋型(软包)电池(未示出)，壳体由封装膜(例如铝塑膜)制成。双层电池模组支架M1还包括第一锁定件5、第二锁定件6、第三锁定件7、第四锁定件8。双层电池模组支架M1还包括下支撑件9。支撑机构M4支撑下层电池模组M3和下固定件2。在图4所示的示例中，支撑机构M4包括：底板M41，从下方支撑下层电池模组M3；以及内围框M42，与底板M41固定连接，从下方支撑下固定件2，紧固件4的下部固定于内围框M42。内围框M42可以采用一体式结构或者采用多个并依次焊接在一起。支撑机构M4还包括：外围框M43，包围内围框M42并与内围框M42固定连接在一起。单层电池模组支架M5与支撑机构M4并排并连接在一起，以支撑单层的电池模组(未示出)。
下面更详细地说明根据本申请的电池包的双层电池模组支架。
图5是图1的简化图，其中，上层电池模组和下层电池模组移除以清楚地示出电池包的双层电池模组支架。图6是电池包的双层电池模组支架的组装立体图，其中换热板去除。图7是图6的侧视图。图8是图6的俯视图。图9是电池包的双层电池模组支架的上板的立体图。
上板1的周缘10具有沿X方向的第一侧SX以及沿Y方向的第二侧SY，如图6和图8所示。上板1还包括位于周缘10处的收容槽11，如图9所示。上板1还具有从第二侧SY突出的片体12，如图6和图8所示。上板1还包括在收容槽11沿Y方向形成的彼此相对突出的凸缘13，如图9所示。上板1还包括换热板14，换热板14与上层电池模组M2进行热交换。当然也可以取消图中所示的换热板14，而采用不同的设置位置和设置方式的换热手段。 上固定件3的底部收容于收容槽11内，从而有利于降低上固定件3的高度，降低双层电池模组支架M1的重心，提高双层电池模组支架M1的稳定性。具体地，如图9所示，收容槽11包括第一收容槽111以及第二收容槽112。第一收容槽111具有第一上开口111a和第一侧开口111b，第一上开口111a朝向上方开口且朝向周缘10的侧面向外开口以形成C型，第一侧开口111b朝向周缘10的侧面向外开口。第二收容槽112具有第二上开口112a和第二侧开口112b，第二上开口112a朝向上方开口且朝向周缘10的侧面开口以形成C型，第二侧开口112b朝向周缘10的侧面向外开口。片体12从上方贴靠在下支撑件9的顶面并固定连接在一起。在图中，片体12为平板，但是不限于此，例如片体12可以为U型弯折板。上板1的凸缘13包括第一凸缘131以及第二凸缘132。第一凸缘131在第一上开口111a沿Y方向形成为彼此相对突出。第二凸缘132在第二上开口112a沿Y方向形成为彼此相对突出。
下固定件2位于上板1的下方并支撑上板1，下固定件2与上板1围成下收容空间RL，下层电池模组M3收容于下收容空间RL中，如图5所示。更具体地，参照图6和图7，下固定件2包括第一下固定件21。下固定件2还包括第二下固定件22。第一下固定件21一体形成有第一凸部211，第一凸部211从第一下固定件21的底部远离第二锁定件6的方向突出。第二下固定件22一体形成有第二凸部221，第二凸部221从第二下固定件22的底部向外突出。
上固定件3位于下固定件2上方并固定于上板1，上固定件3与上板1围成上收容空间RU，如图5所示。上层电池模组M2收容于上收容空间RU中并支撑于上板1上。
更具体地，参照图6和图7，上固定件3包括第一上固定件31。上固定件3还包括第二上固定件32。第一上固定件31和第二上固定件32均由可以采用压铸铝合金件，从而利用压铸铝合金件的质量轻但强度高的性质，在保证轻量化的同时提高双层电池模组支架M1的抗冲击性。
第一上固定件31与第一下固定件21对应。在图6和图7中，第一上固定件31位于上板1的周缘10的第一侧SX。第一上固定件31位于第一下固定件21的上方且第一上固定件31相对第一下固定件21沿Y方向错位，以 使第一上固定件31的下表面310和第一下固定件21的上表面210在Z方向的投影部分重叠，对应的紧固件4在所述Z方向的投影重叠的范围内沿Z方向穿过第一上固定件31和第一下固定件21。第一上固定件31相对第一下固定件21沿Y方向错位除了提供对应的紧固件4穿过第一上固定件31和第一下固定件21所需的范围外，会使得二者的重心连线会相对Z方向倾斜，这样有助于对来自Z方向的冲击(例如电动汽车在颠簸路面行进)进行分散，第一上固定件31和第一下固定件21不会相对彼此直接经由上板1集中传递Z方向的冲击，而是在所述Z方向的投影重叠的范围内传递一部分，而在所述Z方向的投影重叠的范围外进行各自的随机的分散式的传递。
在图6和图7中，第二上固定件32位于上板1的周缘10的X方向的第一侧SX。第二上固定件32位于第二下固定件22正上方，以使第二上固定件32的下表面320和第二下固定件22的上表面220中的一个在Z方向的投影全部落入第二上固定件32的下表面320和第二下固定件22的上表面220中的另一个在Z方向的投影内(换句话说，相对前面的部分重叠，这种情况可以称之为全部重叠)，对应的紧固件4在Z方向的投影重叠的范围内沿Z方向穿过第二上固定件32和第二下固定件22。采用全部重叠方式，可以增强在单纯的Z方向的受力(例如来自上层电池模组M2的重力，来自外部的Z方向的冲击)的均匀分布面积，提高Z方向的抗冲击能力和承载能力，尤其是第二上固定件32和第二下固定件22设置在X方向中心线CX上更是如此。
在图6和图7中，在上板1的周缘10的同一第一侧SX，上板1的X方向中心线CX的左右均设有对应的第一上固定件31和第一下固定件21。其中，上板1的X方向中心线CX的左侧的第一上固定件31相对对应的第一下固定件21沿Y方向的错位与上板1的X方向中心线CX的右侧的第一上固定件31相对对应的第一下固定件21沿Y方向的错位相反。对应的紧固件4在对应的Z方向的投影重叠的范围内沿Z方向穿过对应的第一上固定件31和第一下固定件21。X方向中心线CX的左右两侧的错位相反设置，有利于增加前述冲击的分散方向(即增加Y方向的正负方向)；此外，也有利于对称设计。
如图6所示，位于上板1的周缘10的相反的第一侧SX的第一上固定件 31和第二上固定件32相对上板1的Y方向中心线CY在位置和形状上对称。位于上板1的周缘10的同一第一侧SX的第二上固定件32和两个第一上固定件31相对上板1的X方向中心线CX在位置和形状上对称。上板1的周缘10的Y方向和X方向相交的四个拐角处均设有第一上固定件31。图6所示的结构有利于对称设计。
上固定件3具有位于底部的分别从Y方向的两侧面向外突出的两个突部P，上固定件3的底部的位于两个突部P之间的部分连同两个突部P收容于收容槽11内，各凸缘13从上方止挡对应的突部P，从而提高在Z方向的结构稳定性。具体地，参照图6和图7，突部P包括第一突部311。突部P还包括第二突部321。
第一突部311位于第一上固定件31的底部且分别从第一上固定件31的Y方向的两侧面向外突出，第一上固定件31的底部的位于两个第一突部311之间的部分连同两个第一突部311收容于第一收容槽111内。进一步地，第一上固定件31的底部的位于两个第一突部311之间的部分连同两个第一突部311经由第一侧开口111b收容于第一收容槽111内，各第一凸缘131从上方止挡对应的第一突部311，从而实现可拆卸安装以及定位。如图7所示，第一上固定件31的两个第一突部311上方的部分呈梯形，从而有利于减重，有利于轻量化；也有利于降低重心，提高双层电池模组支架M1的稳定性。
第二突部321位于第二上固定件32的底部且分别从相反的Y方向的两侧面向外突出，第二上固定件32的底部的位于两个第二突部321之间的部分连同两个第二突部321收容于第二收容槽112内。进一步地，第二上固定件32的与底部的位于两个第二突部321之间的部分连同两个第二突部321经由第二侧开口112b收容于第二收容槽112内，各第二凸缘132从上方止挡对应的第二突部321，从而实现可拆卸安装以及定位。如图7所示，第二上固定件32的两个第二突部321上方的部分呈梯形，同样地，从而有利于减重，有利于轻量化；也有利于降低重心，提高双层电池模组支架M1的稳定性。
紧固件4可以采用螺栓和螺母形式，以便于拆装、抗冲击强度以及紧固力的调整。
参照图6和图7并结合图1，第一锁定件5与对应的紧固件4并列。第 一锁定件5在所述Z方向的投影重叠的范围外沿Z方向穿过第一上固定件31和上板1，以将第一上固定件31固定于上板1。在紧固件4的基础上，第一锁定件5有助于进一步增强双层电池模组支架M1的抗冲击能力，提高第一上固定件31的稳定性。第一锁定件5可以采用螺栓和螺母形式，以便于拆装以及紧固力的调整。
参照图6和图7并结合图1，第二锁定件6与对应的紧固件4并列，第二锁定件6在所述Z方向的投影重叠的范围外沿Z方向穿过上板1和第一下固定件21，以将第一上板1和第一下固定件21固定于支撑机构M4上。同样地，在紧固件4的基础上，第二锁定件6有助于进一步增强双层电池模组支架M1的抗冲击能力，提高第一下固定件21的稳定性。第二锁定件6可以采用螺栓和螺母形式，以便于拆装以及紧固力的调整。
参照图6和图7并结合图1，第三锁定件7沿Z方向穿过第一凸部211，以将第一下固定件21固定于支撑机构M4(更具体地为内围框M42)上。同样地，在紧固件4的基础上，第三锁定件7有助于进一步增强双层电池模组支架M1的抗冲击能力，提高第一下固定件21的稳定性，尤其是与第二锁定件6一起组合使用时。进一步地，如图1所示，第三锁定件7还穿过下层电池模组M3的突出部101a，从而在对应的紧固件4穿过下层电池模组M3的突出部101a的基础上进一步提高下层电池模组M3的稳定性。第三锁定件7可以采用螺栓和螺母形式，以便于拆装以及紧固力的调整。
参照图6和图7并结合图1，第四锁定件8沿Z方向穿过第二下固定件22的第二凸部221，以将第二下固定件22固定于支撑机构M4(更具体地为内围框M42)上。同样地，在紧固件4的基础上，第四锁定件8有助于进一步增强双层电池模组支架M1的抗冲击能力，提高第二下固定件22的稳定性。第四锁定件8可以采用螺栓和螺母形式，以便于拆装以及紧固力的调整。
参照图6和图8，下支撑件9位于上板1的周缘10的沿Y方向的第二侧SY。下支撑件9的Z方向的上侧固定连接于上板1(具体地为片体12)，下支撑件9的Z方向的下侧固定连接于支撑机构M4(更具体地为内围框M42)。下支撑件9的设置有利于增强到抵抗Y方向的冲击。位于上板1的周缘10的相反的第二侧SY的下支撑件9相对上板1的X方向中心线CX在位置和形状上对称。参照图1，上层电池模组M2的电池100沿X方向排列， 上板1因这种排列的电池100而在Y方向中心线CY处会向下挠曲，当下支撑件9位于Y方向中心线CY位置时，能提供足够的支撑来避免上板1向下挠曲，进而提高上层电池模组M2的位置稳定性以及提高双层电池模组支架M1的结构稳定性。下支撑件9的Z方向的下侧具有从X方向的相反的两侧面向外突出的突起91，各突起91从上方贴靠在支撑机构M4(更具体地为内围框M42)并固定(例如通过螺钉或粘接)连接在一起，突起91能够增加在支撑机构M4的接触面积，增强下支撑件9对上板1的支撑的稳定性。下支撑件9可以采用挤出铝合金型材，从而不仅能够轻量化，而且能够保证支撑强度以及抗冲击、抗扭转性能。
在根据本申请的电池包中，紧固件4在所述Z方向的投影重叠的范围内沿Z方向穿过上固定件3、上板1以及下固定件2，紧固件4的从下固定件2露出的下部固定于支撑机构M4上，支撑机构M4支撑下层电池模组M3和下固定件2，上层电池模组M2支撑于上板1上，从而本申请的电池包能够以双层方式设置电池模组。由于紧固件4在所述Z方向的投影重叠的范围内沿Z方向穿过上固定件3、上板1以及下固定件2并固定于支撑机构M4，从而使得固定件3、上板1、下固定件2以及支撑机构M4成为一体，提高了结构上的刚度，紧固件4能够有效地抵抗来自X方向和Y方向的冲击，固定件3、上板1、下固定件2以及支撑机构M4通过紧固件4连接，能够使得受到的冲击通过紧固件4的传递进行快速有效地分散，从而根据本申请的电池包能够提高双层电池模组支架M1的稳定性。
上面详细的说明描述多个示范性实施例，但本文不意欲限制到明确公开的组合。因此，除非另有说明，本文所公开的各种特征可以组合在一起而形成出于简明目的而未示出的多个另外组合。

Claims (12)

  1. 一种电池包，包括双层电池模组支架(M1)、上层电池模组(M2)、下层电池模组(M3)以及支撑机构(M4)；
    双层电池模组支架(M1)包括：
    上板(1)；
    下固定件(2)，位于上板(1)的下方并支撑上板(1)，下固定件(2)与上板(1)围成下收容空间(RL)；
    上固定件(3)，位于下固定件(2)上方并固定于上板(1)，上固定件(3)与上板(1)围成上收容空间(RU)，上固定件(3)的下表面和下固定件(2)的上表面在Z方向的投影至少部分重叠；以及
    紧固件(4)，所述在Z方向的投影重叠的范围内沿Z方向穿过上固定件(3)、上板(1)以及下固定件(2)，紧固件(4)的从下固定件(2)露出的下部固定于支撑机构(M4)上；
    上层电池模组(M2)收容于上收容空间(RU)中并支撑于上板(1)上；
    下层电池模组(M3)收容于下收容空间(RL)中；
    支撑机构(M4)支撑下层电池模组(M3)和下固定件(2)。
  2. 根据权利要求1所述的电池包，其特征在于，
    上板(1)的周缘(10)具有沿X方向的第一侧(SX)；
    下固定件(2)包括第一下固定件(21)；
    上固定件(3)包括第一上固定件(31)，第一上固定件(31)位于上板(1)的周缘(10)的第一侧(SX)，第一上固定件(31)与第一下固定件(21)对应；
    第一上固定件(31)位于第一下固定件(21)的上方且第一上固定件(31)相对第一下固定件(21)沿Y方向错位，以使第一上固定件(31)的下表面(310)和第一下固定件(21)的上表面(210)在Z方向的投影部分重叠，紧固件(4)在所述Z方向的投影重叠的范围内沿Z方向穿过第一上固定件(31)和第一下固定件(21)。
  3. 根据权利要求2所述的电池包，其特征在于，
    在上板(1)的周缘(10)的同一第一侧(SX)，上板(1)的X方向中心线(CX)的左右均设有对应的第一上固定件(31)和第一下固定件(21)；
    其中，上板(1)的X方向中心线(CX)的左侧的第一上固定件(31)相对对应的第一下固定件(21)沿Y方向的错位与上板(1)的X方向中心线(CX)的右侧的第一上固定件(31)相对对应的第一下固定件(21)沿Y方向的错位相反；
    对应的紧固件(4)在对应的Z方向的投影重叠的范围内沿Z方向穿过对应的第一上固定件(31)和第一下固定件(21)。
  4. 根据权利要求2或3所述的电池包，其特征在于，
    双层电池模组支架(M1)还包括第一锁定件(5)，第一锁定件(5)与对应的紧固件(4)并列，第一锁定件(5)在所述Z方向的投影重叠的范围外沿Z方向穿过第一上固定件(31)和上板(1)，以将第一上固定件(31)固定于上板(1)。
  5. 根据权利要求2-4中任一项所述的电池包，其特征在于，
    双层电池模组支架(M1)还包括第二锁定件(6)，第二锁定件(6)与对应的紧固件(4)并列，
    第二锁定件(6)在所述Z方向的投影重叠的范围外沿Z方向穿过上板(1)和第一下固定件(21)，以将第一上板(1)和第一下固定件(21)固定于支撑机构(M4)上。
  6. 根据权利要求5所述的电池包，其特征在于，
    第一下固定件(21)一体形成有第一凸部(211)，第一凸部(211)从第一下固定件(21)的底部远离第二锁定件(6)的方向突出；
    双层电池模组支架(M1)还包括第三锁定件(7)，第三锁定件(7)沿Z方向穿过第一凸部(211)，以将第一下固定件(21)固定于支撑机构(M4)上。
  7. 根据权利要求3所述的电池包，其特征在于，
    上固定件(3)还包括第二上固定件(32)，第二上固定件(32)位于上板(1)的周缘(10)的X方向的第一侧(SX)；
    下固定件(2)包括第二下固定件(22)，第二上固定件(32)位于第二下固定件(22)正上方，以使第二上固定件(32)的下表面(320)和第二下固定件(22)的上表面(220)中的一个在Z方向的投影全部落入第二上固定件(32)的下表面(320)和第二下固定件(22)的上表面(220)中的另一个在Z方向的投影内，对应的紧固件(4)在Z方向的投影重叠的范围内沿Z方向穿过第二上固定件(32)和第二下固定件(22)。
  8. 根据权利要求1-7中任一项所述的电池包，其特征在于，
    上板(1)的周缘(10)具有沿Y方向的第二侧(SY)；
    双层电池模组支架(M1)还包括下支撑件(9)，下支撑件(9)位于上板(1)的周缘(10)的沿Y方向的第二侧(SY)，下支撑件(9)的Z方向的上侧固定连接于上板(1)，下支撑件(9)的Z方向的下侧固定连接于支撑机构(M4)。
  9. 根据权利要求1-8中任一项所述的电池包，其特征在于，
    上板(1)具有位于周缘(10)处的收容槽(11)，上固定件(3)的底部收容于收容槽(11)内。
  10. 根据权利要求9所述的电池包，其特征在于，
    上板(1)包括在收容槽(11)沿Y方向形成的彼此相对突出的凸缘(13)，
    上固定件(3)具有位于底部的分别从Y方向的两侧面向外突出的两个突部(P)，上固定件(3)的底部的位于两个突部(P)之间的部分连同两个突部(P)收容于收容槽(11)内，各凸缘(13)从上方止挡对应的突部(P)。
  11. 根据权利要求1-10中任一项所述的电池包，其特征在于，
    上层电池模组(M2)和下层电池模组(M3)均具有向外突出的突出部 (101a)，
    上固定件(3)的顶面沿Z方向贴靠在对应的突出部(101a)的下方，下固定件(2)的底面沿Z方向贴靠在对应的突出部(101a)上方，紧固件(4)还沿Z方向穿过上层电池模组(M2)的突出部(101a)和下层电池模组(M3)的突出部(101a)。
  12. 一种设备，包括一种电池包，其特征在于，所述电池包为根据权利要求1-11中任一项所述的电池包，且所述电池包用于提供电能。
PCT/CN2019/123692 2018-12-29 2019-12-06 电池包及设备 WO2020134977A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811629973.6A CN111384325B (zh) 2018-12-29 2018-12-29 电池包
CN201811629973.6 2018-12-29

Publications (1)

Publication Number Publication Date
WO2020134977A1 true WO2020134977A1 (zh) 2020-07-02

Family

ID=68917527

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/123692 WO2020134977A1 (zh) 2018-12-29 2019-12-06 电池包及设备

Country Status (7)

Country Link
US (2) US11362392B2 (zh)
EP (1) EP3675220B1 (zh)
JP (1) JP6924252B2 (zh)
CN (1) CN111384325B (zh)
HU (1) HUE062654T2 (zh)
PL (1) PL3675220T3 (zh)
WO (1) WO2020134977A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11588199B2 (en) * 2020-03-10 2023-02-21 Karma Automotive Llc Vehicle battery system
US20230335974A1 (en) 2020-06-25 2023-10-19 Sony Group Corporation Light-emitting device
CN112467290A (zh) * 2020-12-10 2021-03-09 湖南世优电气股份有限公司 电池箱

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204857808U (zh) * 2015-07-31 2015-12-09 惠州市亿能电子有限公司 一种动力电池模组安装结构
CN206076332U (zh) * 2016-10-10 2017-04-05 深圳市沃特玛电池有限公司 一种电池模组结构
CN207282567U (zh) * 2017-09-27 2018-04-27 芜湖天量电池系统有限公司 一种动力电池双层电池模组固定结构
CN207409566U (zh) * 2017-11-22 2018-05-25 宁德时代新能源科技股份有限公司 电池包及车辆
CN207781676U (zh) * 2017-12-13 2018-08-28 上海蓝诺新能源技术有限公司 软包电池模组框架组件及包含其的软包电池模组
CN209104238U (zh) * 2018-12-29 2019-07-12 宁德时代新能源科技股份有限公司 电池包

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002127761A (ja) * 2000-10-24 2002-05-08 Shin Kobe Electric Mach Co Ltd 電池モジュール
JP2003297320A (ja) * 2002-04-03 2003-10-17 Toyota Motor Corp 集合電池およびその製造方法ならびに電池システム
JP4783137B2 (ja) * 2005-12-15 2011-09-28 日立ビークルエナジー株式会社 電池モジュール
JP5285877B2 (ja) * 2007-07-19 2013-09-11 日立ビークルエナジー株式会社 電源システム
WO2010123091A1 (ja) * 2009-04-24 2010-10-28 日産自動車株式会社 組電池
US8734978B2 (en) 2009-11-05 2014-05-27 Samsung Sdi Co., Ltd. Battery pack
EP2325923B1 (en) * 2009-11-19 2014-04-16 Samsung SDI Co., Ltd. Battery pack with improved stability
KR101182426B1 (ko) * 2009-12-04 2012-09-12 에스비리모티브 주식회사 전지 모듈 및 이를 포함하는 전지 팩
US9083029B2 (en) * 2009-12-23 2015-07-14 Samsung Sdi Co., Ltd. Battery pack
CN103201876B (zh) * 2010-11-17 2015-11-25 本田技研工业株式会社 车辆用电池单元
KR101488411B1 (ko) * 2012-01-02 2015-02-03 주식회사 엘지화학 연결부재, 측면 지지부재 및 하단 지지부재를 포함하는 전지팩
CN202839855U (zh) * 2012-09-27 2013-03-27 华霆（合肥）动力技术有限公司 一种用于电动汽车上的双层电池组
CN202888324U (zh) * 2012-09-27 2013-04-17 华霆（合肥）动力技术有限公司 一种用于电动汽车上的双层梯形电池组
JP2017010778A (ja) * 2015-06-22 2017-01-12 カルソニックカンセイ株式会社 組電池及び電源装置
CN105810864A (zh) * 2016-04-19 2016-07-27 重庆长安汽车股份有限公司 一种汽车及其动力电池箱体
CN206921887U (zh) * 2017-03-17 2018-01-23 宁德时代新能源科技股份有限公司 电池组
CN206584986U (zh) * 2017-03-23 2017-10-24 宁德时代新能源科技股份有限公司 电池包防护框架及电池包
CN207165640U (zh) * 2017-08-02 2018-03-30 奥动新能源汽车科技有限公司 动力电池箱
CN107833993B (zh) * 2017-10-13 2023-06-27 常州普莱德新能源电池科技有限公司 一种节省电池箱体高度空间的双层模组
CN207834401U (zh) * 2018-01-18 2018-09-07 科力远混合动力技术有限公司 动力电池模组
CN207818698U (zh) * 2018-01-30 2018-09-04 宁德时代新能源科技股份有限公司 电池模组
CN208062145U (zh) * 2018-05-15 2018-11-06 华霆（合肥）动力技术有限公司 电动车电池模组及电源装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204857808U (zh) * 2015-07-31 2015-12-09 惠州市亿能电子有限公司 一种动力电池模组安装结构
CN206076332U (zh) * 2016-10-10 2017-04-05 深圳市沃特玛电池有限公司 一种电池模组结构
CN207282567U (zh) * 2017-09-27 2018-04-27 芜湖天量电池系统有限公司 一种动力电池双层电池模组固定结构
CN207409566U (zh) * 2017-11-22 2018-05-25 宁德时代新能源科技股份有限公司 电池包及车辆
CN207781676U (zh) * 2017-12-13 2018-08-28 上海蓝诺新能源技术有限公司 软包电池模组框架组件及包含其的软包电池模组
CN209104238U (zh) * 2018-12-29 2019-07-12 宁德时代新能源科技股份有限公司 电池包

Also Published As

Publication number Publication date
EP3675220B1 (en) 2023-06-14
JP6924252B2 (ja) 2021-08-25
US11362392B2 (en) 2022-06-14
JP2020109749A (ja) 2020-07-16
CN111384325B (zh) 2021-02-12
CN111384325A (zh) 2020-07-07
US11362393B2 (en) 2022-06-14
US20210111457A1 (en) 2021-04-15
PL3675220T3 (pl) 2023-10-02
HUE062654T2 (hu) 2023-11-28
US20200212393A1 (en) 2020-07-02
EP3675220A1 (en) 2020-07-01

Similar Documents

Publication Publication Date Title
WO2020134977A1 (zh) 电池包及设备
US20220037726A1 (en) Battery pack
JP6073583B2 (ja) 電源装置及びこの電源装置を備える車両並びに蓄電装置
WO2016174855A1 (ja) 電源装置及びこれを備える車両
JP6400838B2 (ja) 電源装置及びこれを備える車両
WO2014034107A1 (ja) 電源装置及び電源装置を備える電動車両並びに蓄電装置
WO2021196114A1 (zh) 电池模块组件、电池包和使用电池作为电源的设备
JP2014500587A (ja) バッテリーモジュールケース
JP2014531730A (ja) 信頼性が向上した電池モジュールアセンブリ及びこれを含む中大型電池パック
CN104425781A (zh) 电池组
WO2020133760A1 (zh) 电池箱
CN107112461A (zh) 包括具有夹持部的盒的电池模块
JP2013125617A (ja) 電源装置及びこれを備える車両並びに蓄電装置
WO2020026963A1 (ja) 車両用のバッテリシステムとこのバッテリシステムを搭載してなる車両
JP2015011819A (ja) 蓄電装置
WO2017026145A1 (ja) 電池モジュール
JP2014501019A (ja) 耐久性が向上したバッテリーパック
WO2021199493A1 (ja) 電源装置及びこれを備える車両並びに蓄電装置
US11302986B2 (en) Battery module, battery pack, and vehicle
JP2016192335A (ja) 電池パック
WO2014024449A1 (ja) 電源装置の製造方法、電源装置及びこれを備える電動車両並びに蓄電装置
JP2016025037A (ja) 電池パック
KR102416817B1 (ko) 배터리 팩의 외함, 이를 이용한 배터리 팩 및 자동차
KR101477548B1 (ko) 콤팩트한 구조의 전지팩
CN214589150U (zh) 电池包结构

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19902267

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19902267

Country of ref document: EP

Kind code of ref document: A1