WO2022199153A1 - 电池模组及用电装置 - Google Patents

电池模组及用电装置 Download PDF

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Publication number
WO2022199153A1
WO2022199153A1 PCT/CN2021/139310 CN2021139310W WO2022199153A1 WO 2022199153 A1 WO2022199153 A1 WO 2022199153A1 CN 2021139310 W CN2021139310 W CN 2021139310W WO 2022199153 A1 WO2022199153 A1 WO 2022199153A1
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WO
WIPO (PCT)
Prior art keywords
casing
recess
battery module
concave portion
wall
Prior art date
Application number
PCT/CN2021/139310
Other languages
English (en)
French (fr)
Inventor
肖良针
王慎波
凌先进
Original Assignee
宁德新能源科技有限公司
东莞新能安科技有限公司
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 宁德新能源科技有限公司, 东莞新能安科技有限公司 filed Critical 宁德新能源科技有限公司
Publication of WO2022199153A1 publication Critical patent/WO2022199153A1/zh

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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
    • 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 application relates to the technical field of lithium batteries, and in particular, to a battery module and an electrical device.
  • the battery is often assembled by closing the case up and down, and some holes for the wire harness to pass through are opened on the assembled battery.
  • it is necessary to improve the air tightness of the above-mentioned pores to reduce the infiltration of moisture into the battery through the above-mentioned pores during the use of the battery, resulting in short circuit or other safety problems of the battery.
  • Embodiments of the present application provide a battery module, including a first battery module, a first wire, a first casing, and a first structural member.
  • the first cell module includes a plurality of stacked cells.
  • the first casing accommodates the first cell module and has a first wall.
  • the first wall includes a first recess and a housing first recess in communication with the first recess.
  • the first structural member is disposed in the first concave portion of the casing.
  • the first wire is electrically connected to the first cell module.
  • the first wire is led out from the inside of the first housing to the outside through the first recess.
  • the first structural member surrounds at least a part of the first wire and is connected to a part of the first wire.
  • the first wire is drawn out from the inside of the first casing by arranging the first concave portion, the first structural member is arranged in the first concave portion of the casing, the first wire is fixed and moisture is suppressed into the first housing.
  • the first housing includes a first wall and a second wall arranged along the first direction.
  • the first concave portion is disposed at a position farther from the first cell module than the first concave portion of the housing.
  • the first recess is arranged at a position farther from the first cell module than the first recess of the casing, and the first structural member arranged in the first recess of the casing can suppress the possibility of Moisture entering from the first recess.
  • the first wall in the first direction, has a second concave portion located between the first concave portion of the housing and the first cell module.
  • the technical effect included in the embodiments of the present application is that the first concave portion and the second concave portion are matched to facilitate fixing the position of the first wire.
  • the first wall has a second recessed portion of the housing located between the first recessed portion of the housing and the first cell module.
  • the battery module further includes a circuit board electrically connected to the first cell module and a second wire electrically connected to the circuit board.
  • the first wall includes a third recess connected to the first recess of the housing and spaced from the first recess.
  • the second wire is led out from the inside of the first housing to the outside through the third recess.
  • the first structural member surrounds at least a part of the second wire and is connected to a part of the second wire.
  • the first concave portion of the housing includes a first groove, and the third concave portion is connected with the first groove.
  • the third concave portion is provided to allow other wires to extend out of the first housing.
  • the first housing includes a first wall and a second wall arranged along the first direction.
  • the third concave portion is disposed at a position farther from the first cell module than the first concave portion of the casing.
  • the first wall has a fourth concave portion located between the first concave portion of the housing and the first cell module.
  • the size of the third concave portion when viewed along the first direction, is larger than that of the first concave portion.
  • the technical effect included in the embodiments of the present application is to accommodate wires of different sizes, thereby improving practicality.
  • the first casing includes a casing for accommodating the first battery module and a cover for covering the casing and the first battery module.
  • the first wall includes a portion of the housing and a portion of the cover.
  • the first concave portion is disposed farther away from the first cell module. far location.
  • the first wall includes a second concave portion of the casing located between the first concave portion of the casing and the first cell module in the first direction.
  • the first structural member includes one of foam and adhesive.
  • the first casing is provided with a first hole that communicates with the first concave portion of the casing.
  • the first hole is used for injecting the first structural member into the first recess of the housing.
  • the first structural member is accommodated in the first concave portion of the casing and the second concave portion of the casing.
  • the technical effects of the embodiments of the present application include: when the first structural member is an adhesive, the injection speed is increased, and the internal air bubbles after the adhesive is solidified are reduced, and the first structural member is lifted to fix the first lead and the second lead As well as the stability of other wires and the inhibition of moisture entering the first housing.
  • the first housing includes a casing and a cover.
  • the outer periphery of the casing is provided with a third groove.
  • the outer periphery of the cover portion is provided with a first convex portion.
  • the first protrusion is accommodated in the third groove.
  • the third groove cooperates with the first convex portion to guide the casing and the cover, so as to facilitate the connection of the casing and the cover.
  • the first housing has a first connection hole for installing the lifting piece.
  • the first housing has a first housing recess
  • the first housing recess includes a first connecting portion and a second connecting portion
  • the first connecting portion is connected to the first wall and extends from the first wall.
  • the second connecting portion is disposed at the end of the first connecting portion away from the first recess, and the second connecting portion, the first connecting portion and the first wall form a second connecting portion for accommodating the first structural member. a slot.
  • the technical effect included in the embodiments of the present application is: by pouring the first structural member in the first groove to fix the first wire in the first groove, the entry of moisture into the first casing is inhibited.
  • the battery module further includes a second concave portion of the case, the second concave portion of the case is connected to the second connecting portion, the second concave portion of the case is provided with a second groove, and the first concave portion and the second groove are used for For the first wire to protrude from the recessed portion of the first housing.
  • the second concave portion of the housing extends from the second connecting portion toward the direction of the first concave portion.
  • the second concave portion of the casing extends from the second connecting portion to the direction of the first concave portion, so that the first wire extending from the concave portion of the first casing can pass through the casing.
  • the second recess and the first recess protrude.
  • the second concave portion of the housing includes a first segment and a second segment arranged in sequence, the first segment is connected to the second connection portion, and the second segment is obliquely arranged relative to the first segment.
  • the second section is inclined relative to the first section, so that when the cross-sectional area of the second section is smaller than the cross-sectional area of the first section, the first section The wire is clamped in the second section; when the cross-sectional area of the second section is larger than the cross-sectional area of the first section, it is beneficial for the first section to accommodate more first structural components.
  • the gap between the second concave portion of the housing and the first wall is not less than 1 mm.
  • the above solution makes the distance between the second recess of the casing and the first wall not less than 1 mm, so that after the first structural member is poured and the first structural member is solidified, the first structural
  • the thickness of the part between the second groove part and the first wall is not less than 1 mm, which increases the sealing effect of the first casing.
  • the second concave portion of the housing extends from the second connecting portion in a direction away from the first concave portion.
  • the above solution extends the second concave portion of the casing from the second connecting portion to a direction away from the first concave portion, so that the first wire extending from the concave portion of the first casing can be removed from the casing.
  • the body protrudes from the second recess and the first recess.
  • the end of the second concave portion of the housing facing away from the first wall is provided with a second connecting surface.
  • the technical effects included in the embodiments of the present application are: by providing the second connection surface, the scratches of the first wire when it extends into the second slot member can be reduced.
  • the distance from the end of the second concave portion of the housing away from the second connecting portion and the second connecting portion is not less than 1 mm.
  • the distance from the end of the second concave portion of the housing away from the second connection to the second connection portion is not less than 1 mm, so that when the first structural member penetrates into the second groove, The first structural member is solidified on the inner wall of the second groove without passing through the second groove, so that the first structural member is restricted from flowing into the concave portion of the first casing and the performance of the first battery module is affected.
  • the first wall is provided with a third concave portion on the outer edge of the first concave portion, and the third concave portion is located in the first groove.
  • the above solution provides a third concave portion to appear in the third concave portion after the first structural member fills the first groove, so as to reduce the first structure caused by too much filling of the first structural member The phenomenon that the parts overflow to the surface of the first shell.
  • the end of the third concave portion facing away from the first wall is further provided with a stepped portion, and the stepped portion is located in the first concave portion.
  • the above solution provides a stepped portion, so that when the first structural member appears in the third concave portion, the stepped portion can accommodate more first structural members, which is further conducive to restricting the first structural member spillover.
  • a battery module includes a first battery module, a first wire, a first structural member and the above-mentioned first casing; the first battery module is arranged in a recess of the first casing; the first wire is connected to The first electric core module extends out of the first casing through the first recess and the second slot, the first wire part is arranged in the first slot; the first structural member is arranged in the first slot for connecting the first wire and the The first concave portion of the casing is fixed.
  • the first casing is applied to the battery module, so that the first groove is used to accommodate the first structural member during the sealing process of the battery, so as to reduce the number of the first structural member lost during perfusion.
  • the first structural member is formed by setting the resin in the first groove and then curing.
  • the two first housings are fixedly connected, so that the recesses of the two first housings are assembled to form an accommodating cavity for accommodating the first battery module , the two first concave parts are assembled to form a through hole communicating with the accommodating cavity; the first concave parts of the two shells are assembled so that the two first grooves form a first cavity communicating with the through hole, and the first structural member is provided in the first cavity.
  • the second concave parts of the two shells are assembled, so that the two second grooves form a collecting channel toward the through hole.
  • Embodiments of the present application further provide an electrical device, including the battery module in any of the foregoing embodiments.
  • FIG. 1 is a schematic structural diagram of a battery module in an embodiment.
  • FIG. 2 is a schematic diagram of an exploded structure of a battery module in an embodiment.
  • FIG. 3 is a schematic diagram of a partial structure of a battery module in an embodiment.
  • FIG. 4 is a schematic structural diagram of a housing in an embodiment.
  • FIG. 5 is a schematic structural diagram of a casing viewed from a first direction in an embodiment.
  • FIG. 6 is a schematic structural diagram of the casing viewed from a second direction according to an embodiment.
  • FIG. 7 is a schematic structural diagram of the first casing viewed from a first direction in an embodiment.
  • FIG. 8 is a schematic view of the structure of the housing in an embodiment.
  • FIG. 9 is a schematic structural diagram of a first cell module in an embodiment.
  • FIG. 10 is a schematic cross-sectional structure diagram of a battery module in an embodiment.
  • FIG. 11 is a schematic three-dimensional structure diagram of a battery module in an embodiment.
  • FIG. 12 is a schematic structural diagram of the battery module shown in FIG. 11 without the upper first casing.
  • FIG. 13 is a schematic structural diagram of the battery module shown in FIG. 12 omitting wires.
  • FIG. 14 is a cross-sectional view of the battery module shown in FIG. 13 along the I-I direction.
  • FIG. 15 is a schematic three-dimensional structure diagram of the battery module shown in FIG. 13 omitting cells.
  • FIG. 16 is a schematic three-dimensional structural diagram of a battery module omitting cells in another embodiment.
  • FIG. 17 is a cross-sectional view of the battery module shown in FIG. 16 along the direction II-II.
  • FIG. 18 is a schematic three-dimensional structural diagram of a battery module omitting cells in the third embodiment.
  • FIG. 19 is a schematic three-dimensional structural diagram of a battery module omitting cells in the fourth embodiment.
  • FIG. 20 is a schematic structural diagram of an electrical device in an embodiment.
  • the first recess 1a The first recess 1a
  • the first cell module 2 The first cell module 2
  • the first connection hole 111a The first connection hole 111a
  • the second general recess b1 The second general recess b1
  • the first shell recess 10a The first shell recess 10a
  • the first cell module 20 The first cell module 20
  • the first recess of the shell 30 is the first recess of the shell 30
  • the first connection surface 40a is the first connection surface 40a
  • a component when a component is considered to be “connected” to another component, it can be directly connected to another component or there may be an intervening component at the same time. When a component is considered to be “set on” another component, it may be located directly on the other component or may co-exist with an intervening component.
  • the terms “top,” “bottom,” “top,” “bottom,” “left,” “right,” “front,” “back,” and similar expressions are used herein for illustrative purposes only.
  • an embodiment of the present application provides a battery module 100 including a first casing 1 , a first battery module 2 , a first lead 3 and a first structural member 4 .
  • the first battery module 2 is arranged in the first casing 1 .
  • the first housing 1 has a first recess 1a and includes a housing first recess 1b connected to the first recess 1a.
  • the first wire 3 is electrically connected to the first cell module 2, and the first wire 3 is drawn out from the inside of the first casing 1 to the outside through the first recess 1a.
  • the first structural member 4 is disposed in the first concave portion 1b of the housing, and the first structural member 4 surrounds at least a part of the first wire 3 and is connected to a part of the first wire 3 .
  • the first lead wire 3 is drawn out from the inside of the first casing 1 by arranging the first concave portion 1a, the first structural member 4 is disposed in the first concave portion 1b of the casing, and the first lead wire 3 is arranged in the first concave portion 1b of the casing. It is fixed to the first concave portion 1b of the casing and prevents moisture from entering the first casing 1 .
  • the first structural member 4 includes an insulating material.
  • the flowable insulating material is disposed in the first recess 1b of the housing by pouring, and then fixed and formed.
  • the insulating material includes one of foam, potting glue, styrofoam and adhesive.
  • the insulating material includes resin, and after the resin is heated and melted, the flowable insulating material is placed in the first concave portion 1b of the housing by pouring, and then fixed and formed.
  • the first housing 1 includes a first wall 1c-1, a second wall 1c-2, a third wall 1c-3, and a fourth wall 1c-4 and the fifth wall 1c-5.
  • the first wall 1c-1 and the second wall 1c-2 are arranged oppositely, the third wall 1c-3 and the fourth wall 1c-4 are arranged oppositely, and the first wall 1c-1 connects the third wall 1c-3 and the fourth wall 1c -4, the second wall 1c-2 connects the third wall 1c-3 and the fourth wall 1c-4.
  • the fifth wall 1c-5 is connected to the first wall 1c-1, the second wall 1c-2, the third wall 1c-3 and the fourth wall 1c-4 to form an accommodating space, and the first cell module 2 is arranged in the accommodating space. space.
  • the first wall 1c-1 has a first recess 1a and a housing first recess 1b communicating with the first recess 1a.
  • the first concave portion 1a is provided at a position farther from the first cell module 2 than the first concave portion 1b of the casing, and the first structural member 4 provided in the first concave portion 1b of the casing prevents the possibility of entering from the first concave portion 1a of moisture.
  • the first wire 3 passes through the first concave portion 1b of the casing and then protrudes out of the interior of the first casing 1 through the first concave portion 1a.
  • the second wall 1c-2 has a first recess 1a and a housing first recess 1b communicating with the first recess 1a.
  • both the first wall 1c-1 and the second wall 1c-2 have a first recess 1a and a housing first recess 1b communicating with the first recess 1a.
  • the structure of the battery module 01 will be described in conjunction with the X, Y, and Z coordinate axes.
  • the X, Y, and Z coordinate axes are perpendicular to each other, and the X direction is defined as the first direction, the Y direction is the second direction, the Z direction is the third direction, wherein the first direction X is the direction in which the first wall 1c-1 and the second wall 1c-2 are oppositely arranged, and the third direction Z is the third wall 1c -3 and the opposite direction of the fourth wall 1c-4, the second direction Y is perpendicular to the first direction X and the second direction Y at the same time.
  • the first wall 1c-1 further has a second recess 1e.
  • the first concave portion 1 a , the second concave portion 1 e and the first cell module 2 are arranged in sequence along the first direction X, and the second concave portion 1 e is located between the first concave portion 1 b of the casing and the first cell module 2 .
  • the first wires 3 pass through the second concave portion 1e, the first concave portion 1b and the first concave portion 1a of the housing in sequence, respectively, so as to be led out from the inside of the first housing 1 to the outside.
  • the first concave portion 1a and the second concave portion 1e cooperate to facilitate fixing the position of the first wire 3 .
  • the first wall 1c-1 further has a second concave portion 1f of the casing, and the first structural member 4 is further disposed in the second concave portion 1f of the casing to surround a part of the first wire 3 and communicate with the first wire 3. part of the connection.
  • the dotted line in FIG. 5 is an auxiliary line for distinguishing the first concave portion 1b of the casing and the second concave portion 1f of the casing.
  • the first wall 1c-1 has a first inner wall 1c-11 and a first outer wall 1c-12, the second recess 1f of the housing is connected to the first wall 1c-1, and the second recess 1f of the housing is connected to the first wall 1c-1.
  • the inner wall 1c-11, the housing first recess 1b is connected to the first outer wall 1c-12, the housing second recess 1f and the housing first recess 1b communicate through the first wall 1c-1 to form a first overall recess a1,
  • the first structural member 4 is disposed in the first general recess a1.
  • the second concave portion 1f of the casing protrudes from the first inner wall 1c-11, and the first concave portion 1b of the casing is located on the first inner wall 1c-11 and the first outer wall 1c-12 between.
  • the first concave portion 1b of the casing protrudes from the first outer wall 1c-12
  • the second concave portion 1f of the casing protrudes from the first inner wall 1c-11, along the second direction Y
  • the projection of the first concave part 1b of the casing and the projection of the second concave part 1f of the casing are located on opposite sides of the projection of the first wall 1c-1, the first concave part 1b of the casing, the second concave part 1f of the casing and the first cell
  • the modules 2 are arranged in sequence along the first direction X, and the second concave portion 1f of the casing is located between the first concave portion 1b of the casing and the first cell module 2 .
  • the first concave portion 1a, the first concave portion 1b of the case, the second concave portion 1f of the case, and the second concave portion 1e communicate with each other.
  • the first wire 3 passes through the second recess 1e, the second recess 1f of the housing, the first recess 1b and the first recess 1a of the housing in sequence, so as to extend from the first housing 1 .
  • the first concave portion 1b of the casing is located outside the first casing 1, and the second concave portion 1f of the casing is located inside the first casing 1, and the second concave portion 1f of the casing is provided for connecting with the first casing.
  • a concave portion 1b cooperates to improve the fixation of the first structural member 4 provided in the first concave portion 1b of the casing and the second concave portion 1f of the casing and restrain the effect of moisture.
  • the first structural member 4 is a potting compound
  • the amount of potting compound provided in the first concave portion 1b of the case and the second concave portion 1f of the case is increased by arranging the second concave portion 1f of the case.
  • the first recess 1b of the housing includes a first section 1b-1, a second section 1b-2, a third section 1b-3 and a fourth section 1b-4.
  • the first section 1b-1 and the second section 1b-2 are disposed opposite to each other along the third direction Z.
  • the first section 1b-1 and the second section 1b-2 connect the first outer wall 1c-12.
  • the third section 1b-3 extends along the third direction Z, and connects the first section 1b-1 and the second section 1b-2, and the fourth section 1b-4 connects the first section 1b-1, the second The section 1b-2, the third section 1b-3 and the first outer wall 1c-12 to form the housing first recess 1b.
  • the projection of the fourth section 1b-4 overlaps with the projection of the first wall 1c-1, and the first wall 1c-1 is used as the fourth section 1b-4.
  • the segment line 1b-11 of the first segment 1b-1, the segment line 1b-21 of the second segment 1b-2, and the segment line 1b- of the third segment 1b-3 31 and the auxiliary line form the housing first recess 1b.
  • the second recess 1f of the housing includes a fifth section 1f-1, a sixth section 1f-2, a seventh section 1f-3 and an eighth section 1f-4.
  • the fifth section 1f-1 and the sixth section 1f-2 are disposed opposite to each other along the third direction Z, and are connected to the first inner wall 1c-11.
  • the seventh section If-3 extends in the third direction Z, and connects the fifth section If-1 and the sixth section If-2.
  • the eighth section 1f-4 connects the fifth section 1f-1, the sixth section 1f-2, the seventh section 1f-3 and the first inner wall 1c-11 to form the housing second recess 1f.
  • segment line 1f-11 of the fifth segment 1f-1, the segment line 1f-21 of the sixth segment 1f-2, and the segment line 1f- of the seventh segment 1f-3 31 and the auxiliary line form the second recess 1f of the housing.
  • the first cell module 2 includes a plurality of cells 2a stacked along the second direction Y.
  • the cell 2a includes a cell housing 21a, which is disposed on the cell
  • the electrode assembly (not shown) in the casing 21a and the electrode terminal 21b connecting the electrode assembly and extending out of the cell casing 21a.
  • the electrode assembly includes a rolled structure formed by winding a positive electrode sheet, a negative electrode sheet and a separator.
  • the cell housing 21a includes a first part 211a and a second part 211b, the second part 211b is located at the edge of the first part 211a and extends outward from the first part 211a, the electrode assembly is accommodated in the first part 211a, and the electrode terminal 21b is The second portion 211b protrudes.
  • the second direction Y is perpendicular to the first direction X.
  • the plurality of battery cells 2a may also be stacked along the first direction X.
  • the battery module 100 further includes a circuit board 5 , the electrode terminals of the plurality of cells 2 a are connected to the circuit board 5 , one end of the first wire 3 is electrically connected to the circuit board 5 , and the other end is connected to the circuit board 5 from the first housing 1 .
  • the circuit board 5 can be a circuit board with a battery management system to intelligently manage and maintain each battery unit, reduce overcharge and overdischarge of the battery, prolong the service life of the battery, and monitor the state of the battery.
  • the first cell module 2 includes a first side surface 2b and a second side surface 2c arranged along the third direction Z, and a third side surface 2d and a fourth side surface arranged along the second direction Y On the side 2e, the third direction Z is perpendicular to the first direction X and the second direction Y.
  • the first cell module 2 further includes a plurality of second structural members 2f, of which some of the second structural members 2f are arranged on the first side 2b, the second side 2c, the third side 2d and the fourth side 2e, and the other part is arranged on the first side 2b, the second side 2c, the third side 2d and the fourth side 2e.
  • a plurality of second structural members 2f are located between the first housing 1 and the plurality of cells 2a, and are in contact with the first housing 1 and the plurality of cells 2a, so as to limit the The positions of the plurality of cells 2a can reduce the collision of the cells 2a with the inner wall of the first casing.
  • the plurality of battery cells 2a may also be stacked along the third direction Z. It can be understood that the first wire 3 and other wires can be freely arranged in the first casing 1 according to requirements.
  • the battery module 100 further includes a second wire 6 , and the second wire 6 is electrically connected to the circuit board 5 along the first direction X. In the opposite direction, the second wire 6 is led out from the inside of the first casing 1 to the outside.
  • the first wall 1c-1 further has a third concave portion 1h, and the first concave portion 1a and the third concave portion 1h are disposed apart from each other. Further, the first concave portion 1a and the third concave portion 1h are arranged along the third direction Z at intervals.
  • the first recess 1b of the housing includes a first groove 11b, and the third recess 1h is connected to the first groove 11b.
  • the second lead wire 6 passes through the first groove 11b and is led out from the inside of the first housing 1 to the outside through the third recess 1h.
  • the first structural member 4 is disposed in the first slot 11b, the first structural member 4 surrounds at least a part of the second wire 6, and is connected to a part of the second wire 6, so as to fix the second wire 6 in the first groove 11b .
  • the distance L11 between the third recess 1h and the first cell module 2 is greater than the distance L12 between the first recess 1b of the casing and the first cell module 2,
  • the third concave portion 1h is disposed at a position farther from the first cell module 2 than the first concave portion 1b of the casing.
  • the first wall 1c-1 further has a fourth recess 1j, the fourth recess 1j is disposed apart from the second recess 1e, and the third recess 1h and the fourth recess 1j are arranged along the first direction X.
  • the distance L13 between the fourth concave portion 1j and the first cell module 2 is smaller than the distance L12 between the first concave portion 1b of the casing and the first cell module 2, so that the fourth concave portion 1j is located between the first concave portion 1b of the casing and the first cell module 2 .
  • the distance L14 between the second concave portion 1f of the casing and the first cell module 2 is greater than the distance L13 between the fourth concave portion 1j and the first cell module 2, so that the fourth concave portion 1j is located in the casing. between the second recess 1f of the body and the first cell module 2 .
  • the third recessed portion 1h, the first recessed portion 1b of the housing, the second recessed portion 1f of the housing, and the fourth recessed portion 1j communicate with each other.
  • the second wire 6 passes through the fourth recess 1j, the second recess 1f of the housing, the first recess 1b and the third recess 1h of the housing, respectively, to extend from the inside of the first housing 1 . Lead out to the outside.
  • the first wall 1c-1 also has other corresponding openings, and the other openings are spaced from the first recess 1a and the third recess 1h along the third direction Z, Other wires are led out from the inside of the first housing 1 to the outside through other openings.
  • the battery module 100 further includes a third wire 7, the first wall 1c-1 has a fifth recess 1k, the fifth recess 1k is connected to the first recess 1b of the casing, and along the third direction Z, the fifth recess 1k is connected to the first recess 1k.
  • a concave portion 1a and a third concave portion 1h are arranged at intervals, and the third wire 7 is provided in the first concave portion 1b of the casing and leads out from the inside of the first casing 1 to the outside through the fifth concave portion 1k.
  • the first wall 1c-1 has a sixth recess 1p, the sixth recess 1p is spaced apart from the fourth recess 1j and the second recess 1e, and the fifth recess 1k and the sixth recess 1p are along the first direction X set up.
  • the distance L15 between the sixth concave portion 1p and the first cell module 2 is smaller than the distance L12 between the first concave portion 1b of the casing and the first cell module 2, so that the sixth concave portion 1p is located between the first concave portion 1b of the casing and the first cell module 2 .
  • the distance L14 between the second concave portion 1f of the casing and the first cell module 2 is greater than the distance L15 between the sixth concave portion 1p and the first cell module 2, so that the sixth concave portion 1p is located in the casing. between the second recess 1f of the body and the first cell module 2 .
  • the fifth recessed portion 1k, the first recessed portion 1b of the housing, the second recessed portion 1f of the housing, and the sixth recessed portion 1p communicate with each other.
  • the third wire 7 passes through the sixth recess 1p, the second recess 1f of the case, the first recess 1b and the fifth recess 1k of the case, respectively, to extend from the inside of the first case 1 . Lead out to the outside.
  • the first wall 1c-1 has a seventh recess 1q and an eighth recess 1r, and the seventh recess 1q is provided apart from the first recess 1a, the third recess 1h and the fifth recess 1k.
  • the eighth recessed portion 1r is provided apart from the second recessed portion 1e, the fourth recessed portion 1j, and the sixth recessed portion 1p.
  • the seventh concave portion 1q and the eighth concave portion 1r are provided along the first direction X. In the first direction, the seventh recessed portion 1q, the housing first recessed portion 1b, the housing second recessed portion 1f, and the eighth recessed portion 1r communicate with each other.
  • the fourth wire 8 passes through the eighth recess 1r, the second recess 1f of the housing, the first recess 1b and the seventh recess 1q of the housing, respectively, to extend from the inside of the first housing 1 . Lead out to the outside.
  • first concave portion 1 b of the casing and the second concave portion 1 f of the casing are at least partially in communication, so as to allow the first wire 3 , the second wire 6 and other wires to pass through and set the first structural member 4 .
  • the first casing 1 is provided with a first hole 1 m , and the first hole 1 m communicates with the first hole 1 m formed by the first concave portion 1 b of the casing and the second concave portion 1 f of the casing.
  • a general concave part a1 the first hole 1m is used for connecting external equipment, the first structural part 4 is injected into the first general concave part a1, and the first structural part 4 is accommodated in the first general concave part a1.
  • the first structural member 4 includes an insulating material, which is injected into the first general recess a1.
  • the wiring harness and the first general recess a1 are bonded and fixed, which can improve the connection stability of the wiring harness and the first general recess a1. Impurities such as external moisture are restricted from entering the first casing 1 .
  • the first structural member 4 includes potting glue.
  • the first structural member 4 is formed by heating and melting the insulating material into the first general recess a1 and then solidifying.
  • the first housing 1 is further provided with a second hole 1n that communicates with the first general recess a1. Along the second direction Y, the projection of the first hole 1m and the projection of the second hole 1n are located within the projection of the first general recess a1.
  • the flowable insulating material is injected into the first general recess a1 through an external device, and the second hole 1n is used to discharge the air in the first general recess a1, thereby not only increasing the injected air speed, and reduce the air bubbles inside the flowable insulating material after solidification, improve the stability of the first structural member 4 to fix the first wire 3, the second wire 6 and other wires, and seal the first housing 1 through the flowable insulating material. opening to prevent moisture from entering the first housing 1 .
  • the first housing 1 includes a casing 11c and a cover 11d
  • the first wall 1c-1 includes a part of the casing 11c and a part of the lid portion 11d.
  • the casing 11c and/or the cover 11d accommodate the first cell module 2 .
  • the casing 11c has a receiving recess for accommodating the first cell module 2
  • the cover 11d is covered on the casing 11c in a plate-like structure, and the first hole 1m and the second hole 1n are formed on the cover 11d.
  • both the casing 11c and the cover 11d are provided with receiving recesses, and the casing 11c and the cover 11d receive the first battery module 2 .
  • the cover portion 11d has a second general recess b1, the first general recess a1 and the second general recess b1 are matched, and the first structural member 4 is provided in the first general recess a1 and the second general recess b1.
  • the first general concave portion a1 and the second general concave portion b1 form a first space 100a, and the first structural member 4 is disposed in the first space 100a.
  • the housing 11c is provided with a first connecting hole 111a for installing a lifting member 111b, and the battery module 100 is easily moved through the lifting member 111b.
  • the cover portion 11d is provided with a first connection hole 111a.
  • both the housing 11c and the cover 11d are provided with a first connection hole 111a.
  • the housing 11c is provided with a first recess 1a
  • the cover 11d is provided with a first recess 1a' of the cover
  • the first recess 1a and the first recess 1a' of the cover cooperate to form The first opening 1A.
  • the first lead wire 3 protrudes from the inside of the first housing 1 to the outside through the first opening 1A.
  • the first concave portion 1a and the first concave portion 1a' of the cover portion have a semicircular structure. In other embodiments, the first concave portion 1a and the first concave portion 1a' of the cover portion may have different shapes.
  • the housing 11c is provided with a second recess 1e
  • the cover 11d is provided with a second recess 1e' of the cover, after the cover 11d covers the housing 11c, the second recess 1e and the second recess 1e' of the cover cooperate to form a second recess.
  • the opening 1A', the first wire 3 protrudes from the inside of the first housing 1 to the outside through the second opening 1A' and the first opening 1A.
  • the aperture of the first opening 1A is r1
  • the aperture of the second opening 1A' is equal to r1.
  • the diameter of the second opening 1A' is larger or smaller than r1.
  • the housing 11c is provided with a third recess 1h
  • the cover 11d is provided with a third recess 1h' of the cover.
  • the third recess 1h and the third recess 1h' of the cover cooperate to form a third recess.
  • Opening 3A the first wire 3 protrudes from the inside of the first housing 1 to the outside through the third opening 3A.
  • the housing 11c is provided with a fourth recess 1j
  • the cover 11d is provided with a fourth recess 1j' of the cover.
  • the fourth recess 1j and the fourth recess 1j' of the cover cooperate to form a fourth recess.
  • Opening 3A' the first wire 3 protrudes from the inside of the first housing 1 to the outside through the fourth opening 3A' and the third opening 3A.
  • the diameter of the third opening 3A is r2
  • the diameter of the fourth opening 3A' is equal to r2.
  • the diameter of the fourth opening 3A' is larger or smaller than r2.
  • the casing 11c is provided with a fifth concave portion 1k
  • the cover portion 11d is provided with a fifth concave portion 1k' of the cover portion.
  • the fifth concave portion 1k and the fifth concave portion 1k' of the cover portion cooperate to form the fifth concave portion 1k'.
  • Opening 5A the first wire 3 protrudes from the inside of the first housing 1 to the outside through the fifth opening 5A.
  • the housing 11c is provided with a sixth recess 1p
  • the cover 11d is provided with a sixth recess 1p' of the cover, after the cover 11d covers the housing 11c, the sixth recess 1p and the sixth recess 1p' of the cover cooperate to form a sixth recess.
  • the opening 5A', the first wire 3 protrudes from the inside of the first housing 1 to the outside through the sixth opening 5A' and the fifth opening 5A.
  • the aperture of the fifth opening 5A is r3, and the aperture of the sixth opening 5A' is equal to r3.
  • the diameter of the sixth opening 5A' is larger or smaller than r2.
  • the housing 11c is provided with a seventh recess 1q
  • the cover 11d is provided with a seventh recess 1q' of the cover.
  • the seventh recess 1q and the seventh recess 1q' of the cover cooperate to form a seventh recess.
  • Opening 7A the first wire 3 protrudes from the inside of the first housing 1 to the outside through the seventh opening 7A.
  • the hole diameter of the seventh recess 1q is r4.
  • the housing 11c is provided with an eighth recess 1r
  • the cover 11d is provided with an eighth recess 1r' of the cover.
  • the eighth recess 1r and the eighth recess 1r' of the cover cooperate to form the eighth recess.
  • the opening 7A', the first wire 3 protrudes from the inside of the first housing 1 to the outside through the eighth opening 1r' and the seventh opening 7A.
  • the diameter of the eighth opening 1r' is equal to the diameter of the seventh recess 1q.
  • the diameter of the eighth opening 1r' is larger or smaller than r4.
  • the fifth recess 1k, sixth recess 1p, seventh recess 1q and eighth recess 1r are smaller in size than the first recess 1a, second recess 1e, third recess 1h and The fourth recess 1j.
  • r3 is less than r2, and r3 is less than r1.
  • r4 is less than r2, and r4 is less than r1.
  • r3 is equal to r4.
  • r3 is larger or smaller than r4.
  • the size of the third recess 1h is larger than the size of the first recess 1a, and r2 is larger than r1 for accommodating wires of different sizes. It can be understood that the size of the opening provided in the first wall 1c-1 can be adjusted according to the size of the wire provided in the opening.
  • a third groove 111e is formed on the outer periphery of the casing 11c, and a first convex portion 111f is formed on the outer circumference of the cover portion 11d.
  • the guide 11d facilitates connection of the housing 11c and the cover 11d. Furthermore, when connecting the case 11c and the lid portion 11d, an adhesive is provided in the third groove 111e, and the first convex portion 111f is fixed in the third groove 111e by the adhesive.
  • the third groove 111e is communicated with the first concave portion 1b of the casing, so that the adhesive overflowing from the third groove 111e flows into the first concave portion 1b of the casing, thereby reducing the overflow of glue on the surface of the casing 11c and the cover 11d and reducing the leakage of glue on the surface of the casing 11c and the cover 11d. Save production costs.
  • the first structure 4 is disposed in the first recess 1b of the housing, and the first lead 3 passes through the second recess 1e, the first The structural member 4 and the first recess 1a are drawn out from the inside of the first housing 1 to the outside.
  • the first structural member 4 fixes the position of the first lead 3 and prevents moisture from entering the first housing from the first recess 1a and the second recess 1e
  • the interior of the body 1 reduces the risk of short circuit damage to the cell 2a caused by moisture.
  • FIGS. 11 , 12 and 13 another embodiment of the present application provides a battery module 100 including a first battery module 20 , a first casing 10 , a first concave portion 30 of the casing, and a casing The second concave portion 40 , the first wire 70 and the first structural member 80 .
  • the first housing 10 is provided with a first housing recess 10a, the first housing 10 includes a plurality of first walls 11, the first cell module 20 is accommodated in the first housing recess 10a, and the first walls 11 are provided with There is a first concave portion 111 , the first concave portion 30 of the casing includes a first connecting portion 31 and a second connecting portion 32 , the first connecting portion 31 is connected to the first wall 11 and extends from the first wall 11 to the first casing concave portion 10 a Extending inwardly, the second connecting portion 32 is disposed at one end of the first connecting portion 31 away from the first concave portion 111 .
  • the second connecting portion 32, the first connecting portion 31 and the first casing 10 form a first groove 33, the second concave portion 40 of the casing is connected to the second connecting portion 32, the second concave portion 40 of the casing is provided with a second groove 41,
  • a lead 70 is connected to the first cell module 20.
  • the first lead 70 extends out of the first housing 10 through the first recess 111 and the second slot 41.
  • the first lead 70 is partially located in the first slot 33.
  • the first structural member 80 is provided in the first groove 33 for fixing the first wire 70 and the first recess 30 of the housing.
  • the second concave portion 40 of the housing is located in the first groove 33 , and the first direction X is perpendicular to the extending direction of the first connecting portion 31 .
  • the first structural member 80 includes an insulator.
  • the first housing 10 includes a first wall 11 and a second side wall 12 oppositely arranged along the second direction Y, and a third side wall 13 and a fourth side wall 14 oppositely arranged along the third direction Z .
  • the first wall 11 is provided with a first concave portion 111
  • the first connecting portion 31 extends from the first wall 11 into the first housing concave portion 10a.
  • the first connecting portion 31 extends from the first wall 11 to the inside of the first housing recess 10a along the second direction Y.
  • the first direction X and the second direction Y are perpendicular to each other, and the third direction Z is perpendicular to the first direction X and the second direction Y at the same time.
  • the first connecting portion 31 is connected to the end of the first wall 11 , and is spaced from the first concave portion 111 in the first direction X, and there is a space for the first groove 33 to be inserted by the first wire 70 It will also be larger, and can accommodate more first structural members 80 and better fix the first wires 70 .
  • the first connecting portion 31 is extended from the first wall 11 along the second direction Y, and the first connecting portion 31 includes a first side edge and a second side edge arranged along the third direction Z. In the direction X, the first connecting portion 31 is concave from the first side and the second side toward its axis position.
  • the second connecting portion 32 and the first wall 11 are oppositely disposed and connected to the first connecting portion 31 to accommodate the first structural member 80 , and the second connecting portion 32 is provided with a concave portion for the first wire 70 to pass through. Pass.
  • the shape of the first concave portion 111 is one of a semicircle, a semiellipse, a rectangle, and a petal shape.
  • the petal shape includes a plurality of partially overlapping semicircles.
  • the shape of the first concave portion 111 is not limited to this, and may also be other shapes suitable for the shape of the first wire 70 .
  • the first casing 10 is provided with a first casing recess 10a, and the first cell module 20 is placed in the first casing recess 10a.
  • the battery module 100 includes two first casings 10 .
  • the two first shells 10 can be fixedly connected, so that the first shell recesses 10a on the two first shells 10 can be assembled to form an accommodating cavity for accommodating the first battery module 20 (not shown in the figure) .
  • the first casing 10 may include a top wall, and the top wall may be directly disposed on the first casing 10 and close the first casing recess 10a.
  • the number of the first casings 10 assembled into the battery module 100 is not limited to this.
  • the The number can also be three, four or five, etc.
  • the first casing recesses 10a on each of the first casings 10 are disposed opposite to each other to form a accommodating cavity for accommodating the cells 21 by splicing.
  • a plurality of first casings 10 are fixed to each other to form a battery module 100 with a specific shape.
  • the first housing 10 includes a first wall 11 , a first concave portion 111 is provided on the first wall 11 , and the first concave portion 111 communicates with the first housing concave portion 10 a .
  • the two first housings 10 are assembled together, so that the two first concave portions 111 are assembled to form a through hole (not shown) that communicates with the accommodating cavity.
  • the first wire 70 is connected to the first cell module 20 and extends out of the through hole to be connected to an external device.
  • the first cell module 20 is formed by stacking a plurality of cells 21 . And the plurality of cells 21 can be arranged in series or in parallel with each other.
  • the first connecting portion 31 and the second connecting portion 32 are combined to form a first groove 33 for receiving the first structural member 80 .
  • the first structural member 80 seals the first wire 70 and the second groove 41, the first structural member 80 is accommodated in the first groove 33 of the cavity to reduce the loss of the first structural member 80, thereby reducing the The usage amount of the first structural member 80 reduces the usage cost of materials.
  • the first structural member 80 can be restricted from flowing into the inside of the first casing 10 during pouring to affect the performance of the battery cell 21, and the overflow of the first structural member 80 into the first casing 10 can be restricted.
  • the exterior of the casing 10 affects the overall aesthetic appearance of the battery module 100 .
  • first housings 10 there are two first housings 10 , and the housing first recesses 30 on the two first housings 10 are assembled so that the two first grooves 33 on the first recesses 30 of the two housings A first cavity (not shown) that communicates with the through hole is formed.
  • the cross-sectional shape of the first connecting portion 31 is one of a semicircle, a semi-ellipse, a rectangle or a petal shape, wherein the petal shape includes a plurality of overlapping semicircles, and the second connecting portion 31 has a cross-sectional shape.
  • 32 is a flat plate structure, and the first connecting portion 31 and the second connecting portion 32 are combined to form the first concave portion 30 of the housing.
  • the first structural member 80 includes resin, which is injected into the first groove 33 by means of infusion, and is formed by being fixed, such as potting glue or other resin materials. It can be understood that the type of the first structural member 80 is not limited thereto, for example, in another embodiment, the first structural member 80 may also be a sealant.
  • the first structural member 80 can be disposed in the first groove 33 first, and then the first wire 70 can be disposed in the second groove 41 and pass through the first concave portion 111 .
  • first wire 70 can also be disposed in the second groove 41 and pass through the first recess 111 , and then the first structural member can be disposed in the first groove 33 .
  • the second concave portion 40 of the housing extends from the second connecting portion 32 toward the first concave portion 111 .
  • the second recess 40 of the casing is provided with a second groove 41 .
  • the second groove 41 is provided in the first groove 33 .
  • the size of the second groove 41 is larger than that of the first recess 111 , and between the second groove 41 and the partial section of the first wire 70 disposed in the second groove 41 is provided
  • the gap can be provided with an adhesive to fix the first wire 70 and the second recess 40 of the housing.
  • the first recess 111 is located in the second recess 40 of the housing, and specifically, the size of the opening of the second groove 41 is larger than that of the first recess According to the size of the opening of 111 , after the first wire 70 passes through the second groove 41 on the second concave portion 40 of the casing, it can pass through the first concave portion 111 and extend out of the first casing 10 .
  • the setting direction of the second concave portion 40 of the casing is not limited to this.
  • the second concave portion 40 of the casing can also be directed from the first wall 11 or the first connecting portion 31 to the first casing.
  • the recessed portion 10a extends inward.
  • the gap between the second concave portion 40 of the casing and the first wall 11 is the first distance L1 .
  • the first distance L1 is not less than 1 mm.
  • first housings 10 there are two first housings 10 , and the two housing second recesses 40 on the two first housings 10 are combined, so that the two second housings on the second housing
  • the groove 41 forms a condensing channel (not shown) toward the first concave portion 111 , and the first wire 70 passes through the condensing channel and the first concave portion 111 to extend out of the first housing 10 .
  • the first structural member 80 is poured into the first cavity, and can penetrate into the condensing channel from the first cavity, so as to fill and seal the gap between the first wire 70 and the condensing channel. After the first structural member 80 is cured, the first wire 70 is fixedly connected to the inner walls of the second concave portions 40 of the two housings, so as to realize the sealing of the first wire 70 at the collecting channel.
  • the second concave portion 40 of the casing when viewed along the first direction X, the second concave portion 40 of the casing is located in the first concave portion 30 of the casing, so that the first wire 70 can be introduced into the first groove 33 from the second concave portion 40 of the casing.
  • the direction X is perpendicular to the extending direction of the first connecting portion 31 .
  • the end of the second concave portion 40 of the housing facing away from the first wall 11 is provided with a constricting groove 44 , and the constricting groove 44 and the second groove 41 are connected by the first connecting surface 40 a.
  • the first wire 70 is connected to the first cell module 20 and extends into the second slot 41, the first wire 70 contacts the constricting groove 44 at the end of the second recess 40 of the casing and the first connection surface 40a, thereby When the first wire 70 protrudes out of the first casing 10 along the second groove 41 and the first concave portion 111 , the problem of scratches caused by contact with the sharp corner portion of the second concave portion 40 of the casing and relative movement can be reduced.
  • the distance from the end of the second concave portion 40 away from the second connecting portion 32 to the second connecting portion 32 is the second distance L2.
  • the second distance L2 is not less than 1 mm.
  • the cross-sectional shape of the second concave portion 40 of the housing is one of a semicircle, a semiellipse, a rectangle, and a petal shape.
  • the petal shape includes a plurality of partially overlapping semicircles.
  • the shape of the second concave portion 40 of the housing is not limited to this, and may also be other shapes that are compatible with the shape of the first wire 70 .
  • the first wire 70 is a wire harness, but it is obviously not limited to this.
  • the first wire 70 can also be a sheet-shaped metal piece or other used for connecting the battery cell 21 and the battery. Connection structure of electrical devices, etc.
  • a first battery module 20 is formed by connecting a plurality of battery cells 21 in series or in parallel.
  • the first cell module 20 is placed in the first casing recess 10 a in the first casing 10 .
  • the first wire 70 connected to the first cell module 20 is passed through the second slot 41, the first slot 33 and the first recess 111 to protrude out of the first housing 10, and the other A casing 10 is fixedly connected to the first casing 10 on which the first cell module 20 is placed to perform a casing closing operation.
  • the first structural member 80 is poured into the first cavity along the through hole formed by splicing the two first shells 10 , so that the first structural member 80 is filled into the first cavity.
  • the first structural member 80 filled in the first cavity overflows the second concave portion 40 of the casing
  • the first structural member 80 flows into the first casing 10 along the inner wall of the second groove 41 to fill the first wire 70
  • the first structural member 80 fixedly connects the first wire 70 and the second concave portion 40 of the casing to achieve a sealing effect.
  • the above-mentioned battery module 100 is mainly aimed at the case where the second concave portion 40 of the casing extends from the second connecting portion 32 to the first direction X, and the cross-sectional area of the second concave portion 40 of the casing along the second direction Y is always the same width. .
  • the first housing recess 30 extending into the first housing recess 10a is provided in the first housing 10, and the housing first recess 30 is provided with a first structural member for accommodating the first housing. 80 of the first slot 33. So that when the first wire 70 is connected to the first cell module 20 and protrudes from the first casing 10 along the second slot 41 and the first recess 111 , the first slot 33 accommodates a certain amount of the first structural member 80 to seal.
  • the gap between the first wire 70 and the second slot 41 is blocked, so as to reduce the first structural member 80 flowing into the first casing 10 or remaining in the first casing 10 due to the lack of a structure for accommodating the first structural member 80 in the first casing 10
  • the problem outside the casing 10 reduces the usage of the first structural member 80 while ensuring the sealing of the first wire 70 , and increases the aesthetics of the outside of the battery module 100 .
  • the battery module 100 in the second embodiment is substantially the same as that in the first embodiment, the difference lies in that the first recess 30 of the casing includes a first section 42 and a second section arranged in sequence Paragraph 43.
  • the first section 42 is connected to the second connecting portion 32
  • the second section 43 is inclined relative to the first section 42 .
  • the second section 43 is inclined from the first section 42 to the direction close to the first connecting portion 31 , that is, viewed along the first direction X, the cross-sectional area of the second section 43 gradually increases.
  • the first structural member 80 is poured into the first groove 33 to seal the first wire 70 and the second section 43, since the cross-sectional area of the second section 43 is relatively larger than that of the first section 42, Therefore, the second section 43 can accommodate more first structural members 80 to increase the stability of the connection between the first wire 70 and the second section 43 .
  • the second section 43 is inclined from the first section 42 to the direction away from the first connecting portion 31 , that is, when viewed along the first direction X, the cross-sectional area of the second section 43 gradually decreases.
  • the inner wall of the second section 43 constricts and clamps the first wire 70 , thereby reducing the damage caused by the first wire 70 during the manufacturing process of the battery module 100 .
  • the battery module 100 described above is mainly for the case where the second concave portion 40 of the casing extends from the second connecting portion 32 to the first direction X, and the second concave portion 40 of the casing has different cross-sectional areas in different sections.
  • the inclination direction of the second section 43 is adjusted to achieve different clamping effects for different first wires 70 .
  • the battery module 100 in the third embodiment is substantially the same as that in the first embodiment, and the difference lies in that the second concave portion 40 of the casing extends from the second connecting portion 32 to the direction away from the first concave portion 111.
  • the first structural member 80 is poured to seal the first wire 70 and the second concave portion 40 of the housing, along the first direction X, the thickness of the second connecting portion 32 from the first wall 11 increases, that is, the first structure after cooling and solidification
  • the member 80 has a larger thickness along the first direction X in the first groove 33 to better reduce the air tightness problem at the first recess 111 .
  • one end of the second concave portion 40 of the casing facing away from the first wall 11 is provided with a second connecting surface (not shown).
  • the first wire 70 is connected to the first cell module 20 and extends into the second slot 41, the first wire 70 is in contact with the second connection surface of the end of the second recess 40 of the casing, thereby reducing the number of first wires 70
  • the problem of scratches is caused by contact with the sharp corner portion of the second concave portion 40 of the casing and relative movement.
  • the above-mentioned battery module 100 is mainly aimed at the situation where the airtightness at the first concave portion 111 is poor, but is also applicable to other battery modules 100 that have no airtightness requirement at the first concave portion 111 .
  • the battery module 100 in the fourth embodiment is substantially the same as that in the first embodiment.
  • the first wall 11 is provided with a third recess 50 on the outer edge of the first recess 111 .
  • the third The recessed portion 50 extends from the first wall 11 to the recessed portion 10a of the first housing, so as to facilitate observation when the first structural member 80 overflows from the first groove 33 to the third recessed portion 50 when the first structural member 80 is poured.
  • the problem that the first structural member 80 overflows and affects the aesthetic appearance of the first casing 10 due to excessive injection of the first structural member 80 is reduced.
  • the shape of the cross-sectional area of the third recess 50 along the second direction Y is one of a semicircle, a semiellipse, a rectangle, and a petal shape.
  • the petal shape includes a plurality of partially overlapping semicircles.
  • the shape of the cross-sectional area of the third concave portion 50 along the second direction Y is not limited to this.
  • the cross-sectional area of the third concave portion 50 along the second direction Y may also be the same as the A wire 70 has other shapes of the same shape and the like.
  • the third concave portion 50 is located in the first groove 33 , so that the third concave portion 50 communicates with the first groove 33 and enables the first structural member 80 overflowing from the first groove 33 to overflow into the third recess 50 .
  • the third recess 50 extends beyond the second recess 40 of the housing, that is, the size of the third recess 50 along the second direction is larger than that of the second recess 40 of the housing along the second direction.
  • the size of the direction further restricts the overflow of the first structural member 80 during fixing.
  • the third concave portion 50 is disposed perpendicular to the first wall 11 , but is obviously not limited thereto.
  • the third concave portion 50 may also be disposed on the first wall 11 at an angle.
  • the end of the third recess 50 facing away from the first wall 11 is further provided with a step portion 60 .
  • the overflowed first structural member 80 appears on the step portion 60 , so as to better observe the overflowing condition of the first structural member 80 .
  • the above-mentioned battery module 100 is mainly aimed at the situation in which the first structural member 80 can overflow from the first groove 33 to the third concave portion 50 .
  • the present solution also provides an electrical device 200 .
  • the electrical device includes the aforementioned battery module 100 .
  • the electrical device 200 of the present application may be, but is not limited to, a portable fax machine, Portable copiers, portable printers, video recorders, LCD TVs, portable cleaners, transceivers, backup power supplies, motors, large household batteries, two-wheeled electric vehicles, four-wheeled electric vehicles, hand-held power tools, electric cleaning devices, drones Wait.

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

Abstract

一种电池模组和用电装置，包括第一电芯模组、第一导线、第一壳体和第一结构件。第一电芯模组包括多个堆叠设置的电芯。第一壳体收容第一电芯模组并具有第一壁。第一壁包括第一凹部和与第一凹部连通的壳体第一凹部。第一结构件配置于壳体第一凹部。第一导线电连接第一电芯模组。第一导线通过第一凹部从第一壳体内部向外部引出。第一结构件至少包围第一导线的一部分并与第一导线的一部分相接。本申请的电池模组和用电装置通过设置第一凹部将第一导线从第一壳体的内部向外引出，将第一结构件设于壳体第一凹部，固定第一导线并抑制水分进入第一壳体内。

Description

电池模组及用电装置 技术领域
本申请涉及锂电池技术领域，尤其涉及一种电池模组及用电装置。
背景技术
常使用上下合壳的方式来组装电池，并在组装的电池上开设一些供线束穿出的孔位。电池在使用过程中，需要提升上述孔位的气密性以减少电池在使用时，水分通过上述孔位渗透至电池内部而造成电池短路或其他的安全问题。
发明内容
有鉴于此，有必要提供一种电池模组及用电装置，其能够抑制水分进入壳体内。
本申请的实施例提供一种电池模组，包括第一电芯模组、第一导线、第一壳体和第一结构件。第一电芯模组包括多个堆叠设置的电芯。第一壳体收容第一电芯模组并具有第一壁。第一壁包括第一凹部和与第一凹部连通的壳体第一凹部。第一结构件配置于壳体第一凹部。第一导线电连接第一电芯模组。第一导线通过第一凹部从第一壳体内部向外部引出。第一结构件至少包围第一导线的一部分并与第一导线的一部分相接。
本申请的实施例包括的技术效果：通过设置第一凹部将第一导线从第一壳体的内部向外引出，将第一结构件设于壳体第一凹部，固定第一导线并抑制水分进入第一壳体内。
一种可能实现的方式中，第一壳体包括沿第一方向设置的第一壁和第二壁。沿第一方向，第一凹部设于比壳体第一凹部离第一电芯模组更远的位置。
本申请的实施例包括的技术效果：将第一凹部设于比壳体第一凹部离第一电芯模组更远的位置，通过设于壳体第一凹部的第一结构件，抑制可能从第一凹部进入的水分。
一种可能实现的方式中，在第一方向上，第一壁具有位于壳体第一凹部和第一电芯模组之间的第二凹部。
本申请的实施例包括的技术效果：通过第一凹部和第二凹部配合，便于固定第一导线的位置。
一种可能实现的方式中，在第一方向上，第一壁具有位于壳体第一凹部和第一电芯模组之间的壳体第二凹部。
一种可能实现的方式中，电池模组还包括与第一电芯模组电连接的电路板以及与电路板电连接的第二导线。第一壁具备与壳体第一凹部相连且与第一凹部相离的第三凹部。第二导线通过第三凹部从第一壳体内部向外部引出。第一结构件包围第二导线至少一部分，且和第二导线的一部分相接。壳体第一凹部包括第一槽，第三凹部与第一槽相连。
本申请的实施例包括的技术效果：通过设置第三凹部，以供其他的导线伸出第一壳体。
一种可能实现的方式中，第一壳体包括沿第一方向设置的第一壁和第二壁。沿第一方向，第三凹部设于比壳体第一凹部离第一电芯模组更远的位置。
一种可能实现的方式中，在第一方向上，第一壁具有位于壳体第一凹部和第一电芯模组之间的第四凹部。
一种可能实现的方式中，沿第一方向观察时，与第一凹部相比，第三凹部的尺寸更大。
本申请的实施例包括的技术效果：用以容纳不同尺寸的导线，提升实用性。
一种可能实现的方式中，第一壳体包括收容第一电芯模组的外壳和覆盖外壳与第一电芯模组的盖部。第一壁包括外壳的一部分以及盖部的一部分。
一种可能实现的方式中，在沿由第一电芯模组和第一壁构成的第一方向上，与壳体第一凹部相比，第一凹部设于离第一电芯模组更远的位置。
一种可能实现的方式中，第一壁包括在第一方向上位于壳体第一凹部和第一电芯模组之间的壳体第二凹部。
一种可能实现的方式中，第一结构件包括泡棉和粘接剂中的一种。
一种可能实现的方式中，第一壳体设有连通壳体第一凹部的第一孔。第一孔用于向壳体第一凹部内注入第一结构件。第一结构件收容于壳体第一凹部和所述壳体第二凹部。
本申请的实施例包括的技术效果：当第一结构件为粘接剂时，提升注入的速度，且减少粘接剂凝固后内部的气泡，提升第一结构件固定第一导线、第二导线以及其他导线的稳定性以及抑制水分进入第一壳体内。
一种可能实现的方式中，第一壳体包括外壳和盖部。外壳的外周设有第三槽。盖部的外周设有第一凸部。第一凸部收容于第三槽内。
本申请的实施例包括的技术效果：通过第三槽和第一凸部配合，对外壳和盖部进行导向，便于连接外壳和盖部。
一种可能实现的方式中，第一壳体具有第一连接孔，用于安装提升件。
一种可能实现的方式中，第一壳体具有第一壳体凹部，壳体第一凹部包括第一连接部和第二连接部，第一连接部连接于第一壁，并从第一壁向第一壳体凹部内延伸，第二连接部设置于第一连接部背离第一凹部的一端，第二连接部、第一连接部和第一壁形成用于容置第一结构件的第一槽。
本申请的实施例包括的技术效果：通过在第一槽内灌注第一结构件以将第一导线固定于第一槽内，抑制水分进入第一壳体内。
一种可能实现的方式中，电池模组还包括壳体第二凹部，壳体第二凹部连接第二连接部，壳体第二凹部设有第二槽，第一凹部和第二槽用于供第一导线从第一壳体凹部内伸出。
一种可能实现的方式中，壳体第二凹部从第二连接部向第一凹部方向延伸。
本申请的实施例包括的技术效果：上述方案通过使壳体第二凹部从第二连接部向第一凹部方向延伸，以使从第一壳体凹部内伸出的第一导线能从壳体第二凹部和 第一凹部处伸出。
一种可能实现的方式中，壳体第二凹部包括依次设置的第一区段和第二区段，第一区段连接于第二连接部，第二区段相对于第一区段倾斜设置。
本申请的实施例包括的技术效果：上述方案通过使第二区段相对第一区段倾斜设置，以在第二区段的横截面积小于第一区段的横截面积时，将第一导线夹紧于第二区段内；在第二区段的横截面积大于第一区段的横截面积时，有利于第一区段收容更多的第一结构件。
一种可能实现的方式中，壳体第二凹部与第一壁之间的间隙不小于1mm。
本申请的实施例包括的技术效果：上述方案通过使壳体第二凹部与第一壁之间的间距不小于1mm，以在灌注第一结构件并在第一结构件凝固后，第一结构件在第二槽件与第一壁之间的厚度不小于1mm，增加第一壳体的密封效果。
一种可能实现的方式中，壳体第二凹部从第二连接部向背离第一凹部方向延伸。
本申请的实施例包括的技术效果：上述方案通过使壳体第二凹部从第二连接部向背离第一凹部方向延伸，以使从第一壳体凹部内伸出的第一导线能从壳体第二凹部和第一凹部处伸出。
一种可能实现的方式中，壳体第二凹部背离第一壁的一端设置有第二连接面。
本申请的实施例包括的技术效果：通过设置第二连接面，以减少第一导线在伸入第二槽件时划伤。
一种可能实现的方式中，壳体第二凹部背离第二连接部的一端到第二连接部的距离不小于1mm。
本申请的实施例包括的技术效果：上述方案通过使壳体第二凹部背离第二连接的一端到第二连接部的距离不小于1mm，以在第一结构件渗透至第二槽内时，使第一结构件未穿过第二槽即凝固于第二槽内壁，限制第一结构件流入第一壳体凹部而影响第一电芯模组的性能。
一种可能实现的方式中，第一壁在第一凹部的外沿设置有第三凹部，第三凹部位于第一槽内。
本申请的实施例包括的技术效果：上述方案通过设置第三凹部，以在第一结构件灌满第一槽后显现于第三凹部内，减少灌注过多第一结构件而导致第一结构件外溢至第一壳体表面的现象。
一种可能实现的方式中，第三凹部背离第一壁的一端还设置有台阶部，台阶部位于第一凹部内。
本申请的实施例包括的技术效果：上述方案通过设置台阶部，以在第一结构件显现于第三凹部时，台阶部能收容更多的第一结构件，进一步有利于限制第一结构件外溢。
一种电池模组，包括第一电芯模组、第一导线、第一结构件和上述的第一壳体；第一电芯模组设于第一壳体凹部内；第一导线连接于第一电芯模组，并通过第一凹部和第二槽延伸出第一壳体，第一导线部分设于第一槽；第一结构件设于第一槽，用于将第一导线和壳体第一凹部固定。
本申请的实施例包括的技术效果：上述方案通过将上述第一壳体应用至电池模组中，以在电池的密封过程中，通过第一槽收容第一结构件，以减少第一结构件在灌注过程中流失。
一种可能实现的方式中，第一结构件通过将树脂设于第一槽后固化形成。
一种可能实现的方式中，第一壳体有两个；两个第一壳体固定连接，以使得两个第一壳体凹部拼合形成用于容置第一电芯模组的容置腔，两个第一凹部拼合形成连通容置腔的通孔；两个壳体第一凹部拼合，以使得两个第一槽形成连通通孔的第一腔体，第一结构件设于第一腔体内；两个壳体第二凹部拼合，以使得两个第二槽形成朝向通孔的收束通道。
本申请的实施例还提供一种用电装置，包括前述任一实施例中的电池模组。
附图说明
图1为一实施例中电池模组的结构示意图。
图2为一实施例中电池模组的分解结构示意图。
图3为一实施例中电池模组的部分结构示意图。
图4为一实施例中外壳的结构示意图。
图5为一实施例中外壳沿第一方向视角的结构示意图。
图6为一实施例中外壳沿第二方向视角的结构示意图。
图7为一实施例中第一壳体沿第一方向视角的结构示意图。
图8为一实施例中外壳的结构示意图。
图9为一实施例中第一电芯模组的结构示意图。
图10为一实施例中电池模组的截面结构示意图。
图11为一实施例中电池模组的立体结构示意图。
图12为图11所示的电池模组省略上第一壳体的结构示意图。
图13为图12所示的电池模组省略导线的结构示意图。
图14为图13所示的电池模组沿Ⅰ-Ⅰ方向的剖视图。
图15为图13所示的电池模组省略电芯的立体结构示意图。
图16为另一实施例中电池模组省略电芯的立体结构示意图。
图17为图16所示的电池模组沿Ⅱ-Ⅱ方向的剖视图。
图18为第三实施例中电池模组省略电芯的立体结构示意图。
图19为第四实施例中电池模组省略电芯的立体结构示意图。
图20为一实施例中用电装置的结构示意图。
主要元件符号说明
电池模组   100
第一空间   100a
第一壳体   1
第一总凹部                      a1
第一凹部                        1a
壳体第一凹部                    1b
第一区段                        1b-1
第二区段                        1b-2
第三区段                        1b-3
第四区段                        1b-4
第一槽                          11b
第一壁                          1c-1
第一内壁                        1c-11
第一外壁                        1c-12
第二壁                          1c-2
第三壁                          1c-3
第四壁                          1c-4
第五壁                          1c-5
第二凹部                        1e
壳体第二凹部                    1f
第五区段                        1f-1
第六区段                        1f-2
第七区段                        1f-3
第八区段                        1f-4
第三凹部                        1h
第四凹部                        1j
第五凹部                        1k
第六凹部                        1p
第七凹部                        1q
第八凹部                        1r
盖部第一凹部                    1a'
盖部第二凹部                    1e'
盖部第三凹部                    1h'
盖部第四凹部                    1j'
盖部第五凹部                    1k'
盖部第六凹部                    1p'
盖部第七凹部                    1q'
盖部第八凹部                    1r'
第一孔                          1m
第二孔                          1n
第一电芯模组                    2
电芯                            2a
第一侧面                          2b
第二侧面                          2c
第三侧面                          2d
第四侧面                          2e
第二结构件                        2f
电芯壳体                          21a
第一部分                          211a
第二部分                          211b
电极端子                          21b
第一开口                          1A
第二开口                          1A'
第三开口                          3A
第四开口                          3A'
第五开口                          5A
第六开口                          5A'
第七开口                          7A
第八开口                          7A'
第一导线                          3
第一结构件                        4
电路板                            5
第二导线                          6
第三导线                          7
第四导线                          8
第一连接孔                        111a
提升件                            111b
外壳                              11c
盖部                              11d
第二总凹部                        b1
第三槽                            111e
第一凸部                          111f
第一壳体                          10
第一壁                            11
第一凹部                          111
第二侧壁                          12
第三侧壁                          13
第四侧壁                          14
第一壳体凹部                      10a
第一电芯模组                      20
电芯                              21
壳体第一凹部                      30
第一连接部                        31
第二连接部                        32
第一槽                            33
壳体第二凹部                      40
第二槽                            41
第一区段                          42
第二区段                          43
收束槽                            44
第一连接面                        40a
第一距离                          L1
第二距离                          L2
第三凹部                          50
台阶部                            60
第一导线                          70
第一结构件                        80
第一方向                          X
第二方向                          Y
第三方向                          Z
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。
需要说明的是，当一个组件被认为是“连接”另一个组件，它可以是直接连接到另一个组件或者可能同时存在居中组件。当一个组件被认为是“设于”另一个组件，它可以是直接设置在另一个组件上或者可能同时存在居中组件。本文所使用的术语“顶”、“底”、“上”、“下”、“左”、“右”、“前”、“后”、以及类似的表述只是为了说明的目的。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请。
下面结合附图，对本申请的一些实施例作详细说明。在不冲突的情况下，下述的实施例及实施例中的特征可以相互组合。
请参阅图1、图2和图3，本申请一实施方式提供一种电池模组100包括第一壳体1、第一电芯模组2、第一导线3和第一结构件4。第一电芯模组2设于第一壳体1内。第一壳体1具有第一凹部1a并包括与第一凹部1a相连的壳体第一凹部1b。第一导线3电连接第一电芯模组2，第一导线3通过第一凹部1a从第一壳体1的内部向外部引出。第一结构件4设于壳体第一凹部1b，第一结构件4至少包围第一导线3的一部分并与第一导线3的一部分相接。本申请的电池模组100通过设置第一凹部1a 将第一导线3从第一壳体1的内部向外引出，将第一结构件4设于壳体第一凹部1b，将第一导线3固定在壳体第一凹部1b并抑制水分进入第一壳体1内。
在一实施例中，第一结构件4包括绝缘材料，可选的，通过灌注的方式将可流动绝缘材料设于壳体第一凹部1b后固定形成。可选的，绝缘材料包括泡棉、灌封胶、发泡胶和粘接剂中的一种。可选的，绝缘材料包括树脂，将树脂加热融化后，通过灌注的方式将可流动绝缘材料设于壳体第一凹部1b后固定形成。
请参阅图1、图3、图4和图5，在一实施例中，第一壳体1包括第一壁1c-1、第二壁1c-2、第三壁1c-3、第四壁1c-4和第五壁1c-5。第一壁1c-1和第二壁1c-2相对设置，第三壁1c-3和第四壁1c-4相对设置，第一壁1c-1连接第三壁1c-3和第四壁1c-4，第二壁1c-2连接第三壁1c-3和第四壁1c-4。第五壁1c-5连接第一壁1c-1、第二壁1c-2、第三壁1c-3和第四壁1c-4，以形成容纳空间，第一电芯模组2设于容纳空间。第一壁1c-1具有第一凹部1a和与第一凹部1a连通的壳体第一凹部1b。第一凹部1a设于比壳体第一凹部1b离第一电芯模组2更远的位置，通过设于壳体第一凹部1b的第一结构件4，抑制可能从第一凹部1a进入的水分。第一导线3经过壳体第一凹部1b后再通过第一凹部1a伸出第一壳体1的内部。在一实施例中，第二壁1c-2具有第一凹部1a和与第一凹部1a连通的壳体第一凹部1b。在另一实施例中，第一壁1c-1和第二壁1c-2均具有第一凹部1a和与第一凹部1a连通的壳体第一凹部1b。为了更好的对电池模组100的结构进行说明，将结合X、Y、Z坐标轴对电池模组01的结构进行叙述，X、Y、Z坐标轴两两垂直,定义X方向为第一方向，Y方向为第二方向，Z方向为第三方向，其中，第一方向X为第一壁1c-1和第二壁1c-2相对设置的方向，第三方向Z为第三壁1c-3和第四壁1c-4相对设置的方向,第二方向Y同时垂直于第一方向X和第二方向Y。
在一实施例中，第一壁1c-1还具有第二凹部1e。第一凹部1a、第二凹部1e和第一电芯模组2沿第一方向X依次设置，第二凹部1e位于壳体第一凹部1b和第一电芯模组2之间。沿与第一方向X相反的方向，第一导线3分别依次穿过第二凹部1e、壳体第一凹部1b和第一凹部1a，以从第一壳体1的内部向外部引出。通过第一凹部1a和第二凹部1e配合，便于固定第一导线3的位置。
在一实施例中，第一壁1c-1还具有壳体第二凹部1f，第一结构件4还设于壳体第二凹部1f，以包围第一导线3的一部分并与第一导线3的一部分相接。图5中的虚线为辅助线，用于区分壳体第一凹部1b和壳体第二凹部1f。可选的，第一壁1c-1具有第一内壁1c-11和第一外壁1c-12，壳体第二凹部1f连接于第一壁1c-1，壳体第二凹部1f连接于第一内壁1c-11，壳体第一凹部1b连接于第一外壁1c-12，壳体第二凹部1f和壳体第一凹部1b通过第一壁1c-1连通，以形成第一总凹部a1，第一结构件4设于第一总凹部a1。可选的，沿与第二方向Y相反的方向观察，壳体第二凹部1f凸出第一内壁1c-11，壳体第一凹部1b位于第一内壁1c-11和第一外壁1c-12之间。可选的，沿与第二方向Y相反的方向观察，壳体第一凹部1b凸出第一外壁1c-12，壳体第二凹部1f凸出第一内壁1c-11，沿第二方向Y，壳体第一凹部1b的投影和壳体第二凹部1f的投影位于第一壁1c-1的投影相对的两侧，壳体第一凹部1b、壳体第二凹部1f和第一电芯模组2沿第一方向X依次设置，壳体第二凹部1f位于壳体 第一凹部1b和第一电芯模组2之间。沿第一方向X，第一凹部1a、壳体第一凹部1b、壳体第二凹部1f和第二凹部1e连通。沿与第一方向X相反的方向，第一导线3分别依次穿过第二凹部1e、壳体第二凹部1f、壳体第一凹部1b和第一凹部1a，以从第一壳体1的内部向外部引出。在一实施例中，壳体第一凹部1b位于第一壳体1的外部，壳体第二凹部1f位于第一壳体1的内部，通过设置壳体第二凹部1f用于与壳体第一凹部1b配合，提升设于壳体第一凹部1b和壳体第二凹部1f内的第一结构件4的固定以及抑制水分的作用。例如当第一结构件4为灌封胶时，通过设置壳体第二凹部1f，增加设于壳体第一凹部1b和壳体第二凹部1f内的灌封胶的量。
可选的，壳体第一凹部1b包括第一区段1b-1、第二区段1b-2、第三区段1b-3和第四区段1b-4。第一区段1b-1和第二区段1b-2沿第三方向Z相对设置。第一区段1b-1和第二区段1b-2连接第一外壁1c-12。第三区段1b-3沿第三方向Z延伸，并连接第一区段1b-1和第二区段1b-2，第四区段1b-4连接第一区段1b-1、第二区段1b-2、第三区段1b-3和第一外壁1c-12，以形成壳体第一凹部1b。可选的，沿第二方向Y，第四区段1b-4的投影与第一壁1c-1的投影有重叠，利用第一壁1c-1作为第四区段1b-4。沿第二方向Y观察，第一区段1b-1的区段线1b-11、第二区段1b-2的区段线1b-21、第三区段1b-3的区段线1b-31和辅助线形成壳体第一凹部1b。
可选的，壳体第二凹部1f包括第五区段1f-1、第六区段1f-2、第七区段1f-3和第八区段1f-4。第五区段1f-1和第六区段1f-2沿第三方向Z相对设置，并连接第一内壁1c-11。第七区段1f-3沿第三方向Z延伸，并连接第五区段1f-1和第六区段1f-2。第八区段1f-4连接第五区段1f-1、第六区段1f-2、第七区段1f-3和第一内壁1c-11以形成壳体第二凹部1f。沿第二方向Y观察，第五区段1f-1的区段线1f-11、第六区段1f-2的区段线1f-21、第七区段1f-3的区段线1f-31和辅助线形成壳体第二凹部1f。
请参阅图2和图8，在一实施例中，第一电芯模组2包括多个沿第二方向Y堆叠设置的电芯2a，电芯2a包括电芯壳体21a、设于电芯壳体21a内的电极组件(图未示)以及连接电极组件并伸出电芯壳体21a的电极端子21b。电极组件包括由正极片、负极片以及隔离膜卷绕形成的卷绕式结构。进一步的，电芯壳体21a包括第一部分211a和第二部分211b，第二部分211b位于第一部分211a的边缘且从第一部分211a向外延伸，电极组件收容于第一部分211a内，电极端子21b从第二部分211b伸出。在一实施例中，第二方向Y垂直于第一方向X。在其他实施例中，多个电芯2a还可以沿第一方向X堆叠设置。
在一实施例中，电池模组100还包括电路板5，多个电芯2a的电极端子连接电路板5，第一导线3的一端电连接电路板5，另一端从第一壳体1的内部向外部引出。电路板5可为具有电池管理系统的电路板，用以智能化管理及维护各个电池单元，减少电池出现过充电和过放电，延长电池的使用寿命，监控电池的状态。
请参阅图9，在一实施例中，第一电芯模组2包括沿第三方向Z设置的第一侧面2b和第二侧面2c以及沿第二方向Y设置的第三侧面2d和第四侧面2e，第三方向Z垂直于第一方向X和第二方向Y。第一电芯模组2还包括多个第二结构件2f，其中部分第二结构件2f设于第一侧面2b、第二侧面2c、第三侧面2d和第四侧面2e，另一 部分设于与电路板5相对的一侧，多个第二结构件2f位于第一壳体1和多个电芯2a之间，并与第一壳体1和多个电芯2a接触连接，用以限制多个电芯2a的位置并减少电芯2a与第一壳体的内壁碰撞的情况。在其他实施例中，多个电芯2a还可以沿第三方向Z堆叠设置。可以理解的是，第一导线3以及其他导线可以根据要求在第一壳体1内自由布局。
请参阅图1、图3、图4、图5和图7，在一实施例中，电池模组100还包括第二导线6，第二导线6电连接电路板5，沿与第一方向X相反的方向，第二导线6从第一壳体1的内部向外部引出。
在一实施例中，第一壁1c-1还具有第三凹部1h，第一凹部1a与第三凹部1h相离设置。进一步的，第一凹部1a与第三凹部1h沿第三方向Z间隔设置。壳体第一凹部1b包括第一槽11b，第三凹部1h与第一槽11b相连。第二导线6穿过第一槽11b并通过第三凹部1h从第一壳体1内部向外部引出。第一结构件4设于第一槽11b，第一结构件4包围第二导线6的至少一部分，且和第二导线6的一部分相接，用以将第二导线6固定于第一槽11b。
在一实施例中，沿第一方向X，第三凹部1h与第一电芯模组2之间的距离L11大于壳体第一凹部1b与第一电芯模组2之间的距离L12，用以使第三凹部1h设于比壳体第一凹部1b离第一电芯模组2更远的位置。
在一实施例中，第一壁1c-1还具有第四凹部1j，第四凹部1j与第二凹部1e相离设置，第三凹部1h和第四凹部1j沿第一方向X设置。沿第一方向X，第四凹部1j与第一电芯模组2之间的距离L13小于壳体第一凹部1b与第一电芯模组2之间的距离L12，用以使第四凹部1j位于壳体第一凹部1b和第一电芯模组2之间。进一步的，壳体第二凹部1f与第一电芯模组2之间的距离L14大于第四凹部1j与第一电芯模组2之间的距离L13，用以使第四凹部1j位于壳体第二凹部1f和第一电芯模组2之间。沿第一方向，第三凹部1h、壳体第一凹部1b、壳体第二凹部1f和第四凹部1j相互连通。沿与第一方向X相反的方向，第二导线6分别穿过第四凹部1j、壳体第二凹部1f、壳体第一凹部1b和第三凹部1h，以从第一壳体1的内部向外部引出。
可以理解的是，当电池模组100还包括其他的导线时，第一壁1c-1还具有对应的其他开口，其他开口沿第三方向Z与第一凹部1a和第三凹部1h间隔设置，其他的导线通过其他开口从第一壳体1的内部向外部引出。例如，电池模组100还包括第三导线7，第一壁1c-1具有第五凹部1k，第五凹部1k与壳体第一凹部1b相连，沿第三方向Z，第五凹部1k与第一凹部1a和第三凹部1h间隔设置，第三导线7设于壳体第一凹部1b并通过第五凹部1k从第一壳体1的内部向外部引出。
在一实施例中，第一壁1c-1具有第六凹部1p，第六凹部1p与第四凹部1j和第二凹部1e相离设置，第五凹部1k和第六凹部1p沿第一方向X设置。沿第一方向X，第六凹部1p与第一电芯模组2之间的距离L15小于壳体第一凹部1b与第一电芯模组2之间的距离L12，用以使第六凹部1p位于壳体第一凹部1b和第一电芯模组2之间。进一步的，壳体第二凹部1f与第一电芯模组2之间的距离L14大于第六凹部1p与第一电芯模组2之间的距离L15，用以使第六凹部1p位于壳体第二凹部1f和第一电芯模组2之间。沿第一方向，第五凹部1k、壳体第一凹部1b、壳体第二凹部1f和第六 凹部1p相互连通。沿与第一方向X相反的方向，第三导线7分别穿过第六凹部1p、壳体第二凹部1f、壳体第一凹部1b和第五凹部1k，以从第一壳体1的内部向外部引出。
在一实施例中，第一壁1c-1具有第七凹部1q和第八凹部1r，第七凹部1q与第一凹部1a、第三凹部1h和第五凹部1k相离设置。第八凹部1r与第二凹部1e、第四凹部1j和第六凹部1p相离设置。第七凹部1q和第八凹部1r沿第一方向X设置。沿第一方向，第七凹部1q、壳体第一凹部1b、壳体第二凹部1f和第八凹部1r相互连通。沿与第一方向X相反的方向，第四导线8分别穿过第八凹部1r、壳体第二凹部1f、壳体第一凹部1b和第七凹部1q，以从第一壳体1的内部向外部引出。
在一实施例中，壳体第一凹部1b和壳体第二凹部1f至少部分连通，用以供第一导线3、第二导线6以及其他的导线穿过以及设置第一结构件4。
请参阅图3、图4和图8，在一实施例中，第一壳体1设有第一孔1m，第一孔1m连通壳体第一凹部1b和壳体第二凹部1f形成的第一总凹部a1，第一孔1m用于连接外部设备，向第一总凹部a1内注入第一结构件4，第一结构件4收容于第一总凹部a1。可选的，第一结构件4包括绝缘材料，注入第一总凹部a1内，绝缘材料固化后将线束和第一总凹部a1粘接固定，可以提升线束和第一总凹部a1连接稳定性，限制外部水分等杂质进入第一壳体1内。可选的，第一结构件4包括灌封胶。可选的，第一结构件4通过将绝缘材料加热融化注入第一总凹部a1后固化形成。在一实施例中，第一壳体1还设有连通第一总凹部a1的第二孔1n。沿第二方向Y，第一孔1m的投影和第二孔1n的投影位于第一总凹部a1的投影内。当第一结构件4为可流动绝缘材料时，通过外部设备向第一总凹部a1内注入可流动绝缘材料，第二孔1n用于排出第一总凹部a1内的空气，进而不仅提升注入的速度，且减少可流动绝缘材料凝固后内部的气泡，提升第一结构件4固定第一导线3、第二导线6以及其他导线的稳定性并通过可流动绝缘材料密封第一壳体1上的开口，以抑制水分进入第一壳体1内。
请参阅图1、图2、图4、图5、图7和图8，在一实施例中，第一壳体1包括外壳11c和盖部11d，第一壁1c-1包括外壳11c的一部分和盖部11d的一部分。外壳11c和\或盖部11d收容第一电芯模组2。
可选的，外壳11c具有收容凹部，用于收容第一电芯模组2，盖部11d呈板状结构盖设于外壳11c上，第一孔1m和第二孔1n设于盖部11d。
可选的，外壳11c和盖部11d均设有收容凹部，外壳11c和盖部11d收容第一电芯模组2。盖部11d具有第二总凹部b1，第一总凹部a1和第二总凹部b1配合，第一结构件4设于第一总凹部a1和第二总凹部b1。第一总凹部a1和第二总凹部b1形成第一空间100a，第一结构件4设于第一空间100a内。
在一实施例中，外壳11c设有第一连接孔111a，用于安装提升件111b，通过提升件111b便于移动电池模组100。在另一实施例中，盖部11d设有第一连接孔111a。在又一实施例中，外壳11c和盖部11d均设有第一连接孔111a。
在一实施例中，外壳11c设有第一凹部1a，盖部11d设有盖部第一凹部1a'，盖部11d覆盖外壳11c后，第一凹部1a和盖部第一凹部1a'配合形成第一开口1A。第一导线3通过第一开口1A从第一壳体1的内部向外部伸出。在一实施例中，第一凹 部1a和盖部第一凹部1a'呈半圆形结构，在其他实施例中，第一凹部1a和盖部第一凹部1a'可呈不同的形状。
可选的，外壳11c设有第二凹部1e，盖部11d设有盖部第二凹部1e'，盖部11d覆盖外壳11c后，第二凹部1e和盖部第二凹部1e'配合形成第二开口1A'，第一导线3通过第二开口1A'和第一开口1A从第一壳体1的内部向外部伸出。可选的，第一开口1A的孔径为r1，第二开口1A'的孔径等于r1。可选的，第二开口1A'的孔径大于或小于r1。
可选的，外壳11c设有第三凹部1h，盖部11d设有盖部第三凹部1h'，盖部11d覆盖外壳11c后，第三凹部1h和盖部第三凹部1h'配合形成第三开口3A，第一导线3通过第三开口3A从第一壳体1的内部向外部伸出。
可选的，外壳11c设有第四凹部1j，盖部11d设有盖部第四凹部1j'，盖部11d覆盖外壳11c后，第四凹部1j和盖部第四凹部1j'配合形成第四开口3A'，第一导线3通过第四开口3A'和第三开口3A从第一壳体1的内部向外部伸出。可选的，第三开口3A的孔径为r2，第四开口3A'的孔径等于r2。可选的，第四开口3A'的孔径大于或小于r2。
可选的，外壳11c设有第五凹部1k，盖部11d设有盖部第五凹部1k'，盖部11d覆盖外壳11c后，第五凹部1k和盖部第五凹部1k'配合形成第五开口5A，第一导线3通过第五开口5A从第一壳体1的内部向外部伸出。
可选的，外壳11c设有第六凹部1p，盖部11d设有盖部第六凹部1p'，盖部11d覆盖外壳11c后，第六凹部1p和盖部第六凹部1p'配合形成第六开口5A'，第一导线3通过第六开口5A'和第五开口5A从第一壳体1的内部向外部伸出。可选的，第五开口5A的孔径为r3，第六开口5A'的孔径等于r3。可选的，第六开口5A'的孔径大于或小于r2。
可选的，外壳11c设有第七凹部1q，盖部11d设有盖部第七凹部1q'，盖部11d覆盖外壳11c后，第七凹部1q和盖部第七凹部1q'配合形成第七开口7A，第一导线3通过第七开口7A从第一壳体1的内部向外部伸出。第七凹部1q的孔径为r4。
可选的，外壳11c设有第八凹部1r，盖部11d设有盖部第八凹部1r'，盖部11d覆盖外壳11c后，第八凹部1r和盖部第八凹部1r'配合形成第八开口7A'，第一导线3通过第八开口1r'和第七开口7A从第一壳体1的内部向外部伸出。可选的，第八开口1r'的孔径等于第七凹部1q的孔径。可选的，第八开口1r'的孔径大于或小于r4。
在一实施例中，沿第一方向X观察，第五凹部1k、第六凹部1p、第七凹部1q和第八凹部1r的尺寸小于第一凹部1a、第二凹部1e、第三凹部1h和第四凹部1j。r3小于r2，且r3小于r1。r4小于r2，且r4小于r1。可选的，r3等于r4。可选的，r3大于或小于r4。
在一实施例中，沿第一方向X观察，第三凹部1h的尺寸大于第一凹部1a的尺寸，r2大于r1，用以容纳不同尺寸的导线。可以理解的是，第一壁1c-1设置的开口的尺寸可以根据设于开口的导线的尺寸进行调整。
在一实施例中，外壳11c的外周设有第三槽111e，盖部11d的外周设有第一凸部111f，第一凸部111f设于第三槽111e内，以对外壳11c和盖部11d进行导向，便于 连接外壳11c和盖部11d。进一步的，在连接外壳11c和盖部11d时，在第三槽111e内设置粘接剂，通过粘接剂将第一凸部111f固定于第三槽111e内。进一步的，第三槽111e与壳体第一凹部1b连通，用以使第三槽111e中溢出的粘接剂流入壳体第一凹部1b内，减少外壳11c和盖部11d表面的溢胶且节约生产成本。
请参阅图10，以第一导线3为例，外壳11c和盖部11d连接后，第一结构件4设于壳体第一凹部1b内，第一导线3穿过第二凹部1e、第一结构件4和第一凹部1a从第一壳体1的内部向外部引出，第一结构件4固定第一导线3的位置，并抑制水分从第一凹部1a和第二凹部1e进入第一壳体1的内部，降低水分引发电芯2a短路受损的风险。
请参阅图11、图12和图13，本申请的另一实施例提供一种电池模组100，包括第一电芯模组20、第一壳体10、壳体第一凹部30、壳体第二凹部40、第一导线70和第一结构件80。第一壳体10设有第一壳体凹部10a，第一壳体10包括多个第一壁11，第一电芯模组20收容于第一壳体凹部10a内，第一壁11上设置有第一凹部111，壳体第一凹部30包括第一连接部31和第二连接部32，第一连接部31连接于第一壁11，并从第一壁11向第一壳体凹部10a内延伸，第二连接部32设置于第一连接部31背离第一凹部111的一端。第二连接部32、第一连接部31和第一壳体10形成第一槽33，壳体第二凹部40连接第二连接部32，壳体第二凹部40设有第二槽41，第一导线70连接于第一电芯模组20，第一导线70通过第一凹部111和第二槽41延伸出第一壳体10，第一导线70部分位于第一槽33，第一结构件80设于第一槽33，用于将第一导线70和壳体第一凹部30固定。沿第一方向X观察，壳体第二凹部40位于所述第一槽33内，第一方向X垂直于第一连接部31延伸方向。在一实施例中，第一结构件80包括绝缘体。
在一实施例中，第一壳体10包括沿第二方向Y相对设置的第一壁11和第二侧壁12，沿第三方向Z相对设置的第三侧壁13和第四侧壁14。优选的，第一壁11上设置有第一凹部111，第一连接部31自第一壁11向第一壳体凹部10a内延伸。优选的，第一连接部31沿第二方向Y自第一壁11向第一壳体凹部10a内延伸。第一方向X和第二方向Y相互垂直，第三方向Z同时垂直于第一方向X和第二方向Y。优选的，第一连接部31连接到第一壁11端部，与所述第一凹部111在第一方向X上设有间距，有利用第一导线70的放入，第一槽33的空间也会更大，可以收容更多第一结构件80，更好的固定第一导线70。在一实施例中，第一连接部31由第一壁11沿第二方向Y延伸设置，第一连接部31包括沿第三方向Z设置的第一侧边和第二侧边，沿第一方向X，第一连接部31由第一侧边和第二侧边向其的轴线位置凹陷。沿第二方向Y，第二连接部32和第一壁11相对设置并连接第一连接部31，以容纳第一结构件80，第二连接部32设有凹部，以供第一导线70穿过。
在一实施例中，第一凹部111的形状为半圆、半椭圆、矩形、花瓣形中的一种。其中，花瓣形包括多个部分重叠的半圆。
需要说明的是，第一凹部111的形状并不限于此，还可为与第一导线70形状相适配的其他形状。
请参阅图11、图12和图13，第一壳体10设有第一壳体凹部10a，第一电芯模 组20放置于第一壳体凹部10a内。在一实施例中，电池模组100包括两个第一壳体10。两个第一壳体10可固定连接，以使两个第一壳体10上的第一壳体凹部10a拼合形成用于容置第一电芯模组20的容置腔(图未示)。
在一实施例中，第一壳体10可以包括一个顶壁，顶壁可直接设于第一壳体10，并封闭所述第一壳体凹部10a。
可以理解的是，组装成电池模组100的第一壳体10的数量并不限于此，如在另一实施例中，为了组装形成不规则形状的电池模组100，第一壳体10的数量还可为三个、四个或五个等。多个第一壳体10在拼接时，每一第一壳体10上的第一壳体凹部10a相对设置以拼合形成用于容置电芯21的容置腔。多个第一壳体10相互固定，以形成特定外形的电池模组100。
请参阅图10和图11，第一壳体10包括第一壁11，第一壁11上设置有第一凹部111，第一凹部111连通第一壳体凹部10a。在一实施例中，两个第一壳体10相互拼合，以使两个第一凹部111拼合形成连通容置腔的通孔(图未示)。第一导线70连接于第一电芯模组20上并伸出通孔连接于外部设备上。
在一些实施例中，第一电芯模组20由多个电芯21层叠形成。且多个电芯21可相互串联或并联设置。
第一连接部31和第二连接部32组合形成用于收容第一结构件80的第一槽33。在第一结构件80将第一导线70与第二槽41密封时，第一结构件80被收容于上述腔体的第一槽33内，以减少第一结构件80的流失，从而减少了第一结构件80的使用量，降低了材料的使用成本。另外，通过设置上述收容第一结构件80的腔体，可以限制第一结构件80在灌注时流入第一壳体10内部以影响电芯21的性能，限制第一结构件80溢出于第一壳体10外部而影响电池模组100的整体外观美感。
在一实施例中，第一壳体10有两个，两个第一壳体10上的壳体第一凹部30拼合，以使两个壳体第一凹部30上的两个第一槽33形成连通通孔的第一腔体(图未示)。
在一实施例中，沿第二方向Y，第一连接部31的截面形状为半圆、半椭圆、矩形或花瓣形中的一种，其中，花瓣状包括多个重叠的半圆，第二连接部32为平板结构，第一连接部31和第二连接部32组合形成壳体第一凹部30。
在一实施例中，第一结构件80包括树脂，并通过灌注的方式注入第一槽33并固定化形成，比如灌封胶或其他树脂类材料等。可以理解的是，第一结构件80的类型不限于此，如在另一实施例中，第一结构件80还可为密封胶。优选的，第一结构件80可以先设于第一槽33，然后将第一导线70设于第二槽41并穿出所述第一凹部111。
在另一实施例中，还可将第一导线70设于第二槽41并穿出所述第一凹部111，然后将第一结构件可以设于第一槽33。
请参阅图12、图13和图14，在一实施例中，壳体第二凹部40从第二连接部32向第一凹部111方向延伸。壳体第二凹部40设有第二槽41。优选的，第二槽41设于第一槽33内。优选的，沿和第二方向Y相反的方向观察，第二槽41的尺寸大于第一凹部111，第二槽41和设于第二槽41内的第一导线70部分区段之间设有间 隙，间隙可设有粘接剂，以固定第一导线70和壳体第二凹部40。优选的，沿和第二方向Y相反的方向观察，壳体第二凹部40的截图中，第一凹部111位于壳体第二凹部40内，具体的第二槽41的开口尺寸大于第一凹部111的开口尺寸，第一导线70穿过壳体第二凹部40上的第二槽41后，即可穿过第一凹部111而伸出第一壳体10。可以理解的是，壳体第二凹部40的设置方向不限于此，如在另一实施例中，壳体第二凹部40还可从第一壁11或第一连接部31向第一壳体凹部10a内延伸。
在一实施例中，壳体第二凹部40与第一壁11之间的间隙为第一距离L1。在一实施例中，第一距离L1不小于1mm，第一结构件80灌注于第一槽33内时，第一结构件80较多的集中于壳体第二凹部40和第一壁11之间的空间内，第一结构件80固化后，在壳体第二凹部40和第一壁11之间形成一层固化的结构，限制外部杂质进入第一壳体10内，比如限制水进入第一壳体内。
在一实施例中，第一壳体10有两个，两个第一壳体10上的两个壳体第二凹部40拼合，以使得两个壳体第二凹部40上的两个第二槽41形成朝向第一凹部111的收束通道(图未示)，第一导线70穿过收束通道和第一凹部111而伸出第一壳体10。
需要说明的是，在第一导线70从收束通道伸出时，第一导线70与两个壳体第二凹部40的内壁之间会形成空隙。此时，第一结构件80灌注于第一腔体内，并可从第一腔体向收束通道内渗透，以填充并封堵于第一导线70和收束通道的空隙内。待第一结构件80固化后，将第一导线70和两个壳体第二凹部40的内壁固定连接，以实现第一导线70在收束通道处的密封。
请结合图14，沿第一方向X观察，壳体第二凹部40位于壳体第一凹部30内，以便于将第一导线70从壳体第二凹部40引入第一槽33内，第一方向X垂直于第一连接部31延伸方向。
请结合图15，壳体第二凹部40背离第一壁11的一端设有收束槽44，收束槽44与第二槽41通过第一连接面40a连接。在第一导线70连接第一电芯模组20并伸入第二槽41内时，第一导线70与壳体第二凹部40端部的收束槽44及第一连接面40a接触，从而减少第一导线70在沿第二槽41和第一凹部111处伸出第一壳体10外时，与壳体第二凹部40上尖锐的转角部位接触并相对移动而产生的划伤问题。
壳体第二凹部40背离第二连接部32的一端到第二连接部32的距离为第二距离L2。在一实施例中，第二距离L2不小于1mm。在灌注第一结构件80时，第一结构件80会从第一槽33向第二槽41内渗透，并沿第二槽41的内壁流向第一壳体10内部，通过使第二距离L2的长度不小于1mm，以使第一结构件80在第二槽41内流动时，还未流到第一壳体10内部即固化在第二槽41的内壁上。
在一实施例中，沿第二方向Y，壳体第二凹部40的截面形状为半圆、半椭圆、矩形、花瓣形中的一种。其中，花瓣形包括多个部分重叠的半圆。
需要说明的是，壳体第二凹部40的形状并不限于此，还可为与第一导线70形状相适配的其他形状。
在一实施例中，第一导线70为线束，但显然并不限于此，如在另一实施例中，第一导线70还可为片状的金属件或其他用于连接电芯21和用电装置的连接结构 等。
本申请的一种具体实施方案的操作流程如下：首先，电池模组100在生产制造过程中，通过将多个电芯21以串联或并联的方式相互连接以形成第一电芯模组20。将第一电芯模组20放置于第一壳体10内的第一壳体凹部10a内。
然后，将连接于第一电芯模组20上的第一导线70穿过第二槽41、第一槽33和第一凹部111以伸出第一壳体10外，并通过将另一第一壳体10与放置有第一电芯模组20的第一壳体10固定连接以进行合壳操作。
最后，沿两个第一壳体10拼合而成的通孔向第一腔体内灌注第一结构件80，以使第一结构件80填充至第一腔体内。当填充于第一腔体内的第一结构件80溢过壳体第二凹部40时，第一结构件80沿第二槽41内壁向第一壳体10内流动，以填充至第一导线70和第二槽41之间的空隙处，待第一结构件80冷却固化后，第一结构件80将第一导线70和壳体第二凹部40固定连接，以达到密封的效果。
上述的电池模组100主要针对的是壳体第二凹部40自第二连接部32向第一方向X延伸，且壳体第二凹部40沿第二方向Y的横截面积始终等宽的情况。
上述提供的电池模组100通过在第一壳体10内设置向第一壳体凹部10a内延伸的壳体第一凹部30，并在壳体第一凹部30上设有用于收容第一结构件80的第一槽33。以使第一导线70在连接第一电芯模组20并沿第二槽41和第一凹部111伸出第一壳体10时，第一槽33收容定量的第一结构件80，以封堵第一导线70与第二槽41的间隙，从而减少由于第一壳体10无收容第一结构件80的结构而导致的第一结构件80流入第一壳体10内或残留在第一壳体10外的问题，在保证第一导线70密封的情况下减少了第一结构件80的使用量，并增加了电池模组100外部的美观性。
请参阅图16和图17，实施例二中的电池模组100与实施例一中的大致相同，其区别点在于，壳体第一凹部30包括依次设置的第一区段42和第二区段43。第一区段42连接于第二连接部32，第二区段43相对第一区段42倾斜设置。
在一实施例中，第二区段43自第一区段42向靠近第一连接部31方向倾斜，即沿第一方向X观察，第二区段43的横截面积逐渐增大。在向第一槽33内灌注第一结构件80以密封第一导线70与第二区段43时，由于第二区段43的横截面积相对较第一区段42的横截面积大，故第二区段43能收容更多的第一结构件80，以增加第一导线70与第二区段43连接的稳固性。
在另一实施例中，第二区段43自第一区段42向远离第一连接部31方向倾斜，即沿第一方向X观察，第二区段43的横截面积逐渐减小。以使第一导线70穿过第二区段43时，第二区段43的内壁收束并将第一导线70夹紧，从而减少电池模组100在生产制造过程中，由于第一导线70卡持不紧固导致的第一导线70脱离壳体第二凹部40的问题。
上述电池模组100主要针对壳体第二凹部40自第二连接部32向第一方向X延伸，且壳体第二凹部40在不同区段具有不同的横截面积的情况。以在连接电芯21和外部用电装置的第一导线70的种类不同时，通过调整第二区段43的倾斜方向，以达到对不同第一导线70具有不同的卡紧效果的目的。
请参阅图18，实施例三中的电池模组100与实施例一中的大致相同，其区别点 在于，壳体第二凹部40从第二连接部32向背离第一凹部111方向延伸。在灌注第一结构件80以密封第一导线70和壳体第二凹部40时，沿第一方向X，第二连接部32距第一壁11的厚度增加，即冷却固化后的第一结构件80在第一槽33内沿第一方向X具有较大厚度，以更好的减少在第一凹部111处存在的气密性问题。
进一步地，壳体第二凹部40背离第一壁11的一端设置有第二连接面(图未示)。以在第一导线70连接第一电芯模组20并伸入第二槽41内时，第一导线70与壳体第二凹部40端部的第二连接面接触，从而减少第一导线70在沿第二槽41和第一凹部111处伸出第一壳体10外时，与壳体第二凹部40上尖锐的转角部位接触并相对移动而产生的划伤问题。
上述的电池模组100主要针对在第一凹部111处气密性较差的情况，但同时适用于在第一凹部111处无气密性要求的其他电池模组100。
请参阅图19，实施例四中的电池模组100与实施例一大致相同，其区别点在于，第一壁11在第一凹部111的外沿设置有第三凹部50，优选的，第三凹部50自第一壁11向第一壳体凹部10a内延伸，以在灌注第一结构件80时，第一结构件80从第一槽33内溢出至第三凹部50时，便于观察，以减少灌注过量第一结构件80而导致的第一结构件80外溢而影响第一壳体10外观美感的问题。
在一实施例中，第三凹部50沿第二方向Y的横截面积的形状为半圆、半椭圆、矩形、花瓣形中的一种。其中，花瓣形包括多个部分重叠的半圆。可以理解的是，第三凹部50沿第二方向Y的横截面积的形状不限于此，如在另一实施例中，第三凹部50沿第二方向Y的横截面积还可为与第一导线70具有相同形状的其他形状等。
进一步地，沿第一方向X观察，第三凹部50位于第一槽33内，以使第三凹部50与第一槽33连通，并使从第一槽33内溢出的第一结构件80能溢出至第三凹部50中。
在一实施例中，沿和第二方向Y相反的方向，第三凹部50延伸超出壳体第二凹部40，即第三凹部50沿第二方向的尺寸大于壳体第二凹部40沿第二方向的尺寸，进一步限制第一结构件80在固定中溢出。
在一实施例中，第三凹部50垂直于第一壁11设置，但显然并不限于此，如在另一实施例中，第三凹部50还可呈角度设置于第一壁11上。
为了进一步便于观察从第一槽33溢出至第三凹部50的第一结构件80，第三凹部50背离第一壁11的一端还设置有台阶部60。以在第一结构件80从第一槽33溢出自第三凹部50时，溢出的第一结构件80显现于台阶部60上，以便于更好的观察第一结构件80的溢出情况。
上述的电池模组100主要针对第一结构件80能从第一槽33溢出至第三凹部50的情况。
请参阅图20，本方案还提供一种用电装置200，用电装置包括前述的电池模组100，在一实施方式中，本申请的用电装置200可以是，但不限于便携式传真机、便携式复印机、便携式打印机、录像机、液晶电视、手提式清洁器、收发机、备用电源、电机、家庭用大型蓄电池、二轮电动车、四轮电动车、手持电动工具、电动清洁装置、无人机等。
另外，本技术领域的普通技术人员应当认识到，以上的实施例仅是用来说明本申请，而并非用作为对本申请的限定，只要在本申请的实质精神范围之内，对以上实施例所作的适当改变和变化都落在本申请公开的范围之内。

Claims (28)

  1. 一种电池模组，其特征在于，包括第一电芯模组、第一导线、第一壳体和第一结构件；
    所述第一电芯模组包括多个堆叠设置的电芯；
    所述第一壳体收容所述第一电芯模组并具有第一壁，所述第一壁包括第一凹部和与所述第一凹部连通的的壳体第一凹部；
    所述第一结构件配置于所述壳体第一凹部；
    所述第一导线电连接所述第一电芯模组，所述第一导线通过所述第一凹部从所述第一壳体内部向外部引出；
    所述第一结构件至少包围所述第一导线的一部分并与所述第一导线的一部分相接。
  2. 如权利要求1所述的电池模组，其特征在于，所述第一壳体包括沿第一方向设置的所述第一壁和第二壁，沿所述第一方向，所述第一凹部设于比所述壳体第一凹部离所述第一电芯模组更远的位置。
  3. 如权利要求2所述的电池模组，其特征在于，在所述第一方向上，所述第一壁具有位于所述壳体第一凹部和所述第一电芯模组之间的第二凹部。
  4. 如权利要求2所述的电池模组，其特征在于，在所述第一方向上，所述第一壁具有位于所述壳体第一凹部和所述第一电芯模组之间的壳体第二凹部。
  5. 如权利要求1所述的电池模组，其特征在于，所述电池模组还包括与所述第一电芯模组电连接的电路板以及与所述电路板电连接的第二导线；
    所述第一壁具备与所述壳体第一凹部相连且与所述第一凹部相离的第三凹部，所述第二导线通过第三凹部从所述第一壳体内部向外部引出，所述第一结构件包围所述第二导线至少一部分，且和所述第二导线的一部分相接，所述壳体第一凹部包括第一槽，所述第三凹部与所述第一槽相连。
  6. 如权利要求5所述的电池模组，其特征在于，所述第一壳体包括沿第一方向设置的所述第一壁和第二壁，沿所述第一方向，所述第三凹部设于比所述壳体第一凹部离所述第一电芯模组更远的位置。
  7. 如权利要求6所述的电池模组，其特征在于，在所述第一方向上，所述第一壁具有位于所述壳体第一凹部和所述第一电芯模组之间的第四凹部。
  8. 如权利要求6所述的电池模组，其特征在于，沿所述第一方向观察时，与所述第一凹部相比，所述第三凹部的尺寸更大。
  9. 如权利要求1所述的电池模组，其特征在于：
    所述第一壳体包括收容所述第一电芯模组的外壳和覆盖所述外壳与所述第一电芯模组的盖部；
    所述第一壁包括所述外壳的一部分以及所述盖部的一部分。
  10. 如权利要求9所述的电池模组，其特征在于，在沿由所述第一电芯模组和所述第一壁构成的第一方向上，与所述壳体第一凹部相比，所述第一凹部设于离所述第一电芯模组更远的位置。
  11. 如权利要求10所述的电池模组，其特征在于，所述第一壁包括在所述第一 方向上位于所述壳体第一凹部和所述第一电芯模组之间的壳体第二凹部。
  12. 如权利要求1所述的电池模组，其特征在于，所述第一结构件包括泡棉和粘接剂中的一种。
  13. 如权利要求4所述的电池模组，其特征在于，所述第一壳体设有连通所述壳体第一凹部的第一孔，所述第一结构件收容于所述壳体第一凹部和所述壳体第二凹部。
  14. 如权利要求9所述的电池模组，其特征在于，所述第一壳体包括外壳和盖部，所述外壳的外周设有第三槽，所述盖部的外周设有第一凸部，所述第一凸部收容于所述第三槽内。
  15. 如权利要求9所述的电池模组，其特征在于，所述第一壳体具有第一连接孔，用于安装提升件。
  16. 如权利要求1所述的电池模组，其特征在于，所述第一壳体具有第一壳体凹部，所述壳体第一凹部包括第一连接部和第二连接部，所述第一连接部连接于所述第一壁，并从所述第一壁向所述第一壳体凹部内延伸，所述第二连接部设置于所述第一连接部背离所述第一凹部的一端，所述第二连接部、所述第一连接部和所述第一壁形成用于容置所述第一结构件的第一槽。
  17. 如权利要求16所述的电池模组，其特征在于，还包括：
    壳体第二凹部，连接所述第二连接部，所述壳体第二凹部设有第二槽，所述第一凹部和所述第二槽用于供所述第一导线从所述第一壳体凹部内伸出。
  18. 如权利要求17所述的电池模组，其特征在于，所述壳体第二凹部从所述第二连接部向所述第一凹部方向延伸。
  19. 如权利要求17所述的电池模组，其特征在于，所述壳体第二凹部包括依次设置的第一区段和第二区段，所述第一区段连接于所述第二连接部，所述第二区段相对于所述第一区段倾斜设置。
  20. 如权利要求17所述的电池模组，其特征在于，所述壳体第二凹部与所述第一壁之间的间隙不小于1mm。
  21. 如权利要求17所述的电池模组，其特征在于，所述壳体第二凹部从所述第二连接部向背离所述第一凹部方向延伸。
  22. 如权利要求17所述的电池模组，其特征在于，所述壳体第二凹部背离所述第一壁的一端设置有第二连接面。
  23. 如权利要求17所述的电池模组，其特征在于，所述壳体第二凹部背离所述第二连接部的一端到所述第二连接部的距离不小于1mm。
  24. 如权利要求16所述的电池模组，其特征在于，所述第一壁在所述第一凹部的外沿设置有第三凹部，所述第三凹部位于所述第一槽内。
  25. 如权利要求24所述的电池模组，其特征在于，所述第三凹部背离所述第一壁的一端还设置有台阶部，所述台阶部位于所述第一凹部内。
  26. 如权利要求17所述的电池模组，其特征在于，所述电池模组包括电芯模组
    所述电芯模组设于所述第一壳体凹部内；
    所述第一导线连接于所述电芯模组，并通过所述第一凹部和第二槽延伸出所述第一壳体，所述第一导线部分设于所述第一槽；
    所述第一结构件设于所述第一槽，用于将所述第一导线和所述壳体第一凹部固定。
  27. 如权利要求26所述的电池模组，其特征在于，所述第一壳体有两个；
    两个所述第一壳体固定连接，以使得两个所述第一壳体凹部拼合形成用于容置电芯模组的容置腔，两个所述第一凹部拼合形成连通所述容置腔的通孔；
    两个所述壳体第一凹部拼合，以使得两个所述第一槽形成连通所述通孔的第一腔体，所述第一结构件设于所述第一腔体内；
    两个所述壳体第二凹部拼合，以使得两个所述第二槽形成朝向所述通孔的收束通道。
  28. 一种用电装置，其特征在于，包括如权利要求1至27任一项所述的电池模组。
PCT/CN2021/139310 2021-03-26 2021-12-17 电池模组及用电装置 WO2022199153A1 (zh)

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