WO2023039909A1 - 电池组件和用电设备 - Google Patents
电池组件和用电设备 Download PDFInfo
- Publication number
- WO2023039909A1 WO2023039909A1 PCT/CN2021/119459 CN2021119459W WO2023039909A1 WO 2023039909 A1 WO2023039909 A1 WO 2023039909A1 CN 2021119459 W CN2021119459 W CN 2021119459W WO 2023039909 A1 WO2023039909 A1 WO 2023039909A1
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- WIPO (PCT)
- Prior art keywords
- block
- structural member
- battery
- recess
- protrusion
- Prior art date
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- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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Images
Classifications
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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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/105—Pouches or flexible bags
-
- 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
- H01M50/258—Modular batteries; Casings provided with means for assembling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
-
- 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 field of electrochemical devices, in particular to a battery assembly and an electrical device with the battery assembly.
- the battery assembly is vulnerable to impact, vibration or shock, etc.
- the electrolyte in the cell will impact the cell shell under the action of inertia , it is necessary to further improve the protection of the battery case.
- the present application provides a battery assembly capable of improving the above problems and an electric device having the battery assembly.
- the battery assembly provided in the embodiment of the present application includes a casing, a cell assembly, and a first member, the cell assembly is disposed in the casing, the cell assembly includes a plurality of cells stacked along a first direction,
- the cell includes a casing, an electrode assembly, and an electrode terminal.
- the casing includes a first portion for accommodating the electrode assembly and a second portion extending from the periphery of the first portion.
- the electrode terminal is connected to the The electrode assembly extends from the second part to the first part, the first member includes an insulating material, and along the first direction, the first member is arranged on the first part adjacent to the electric core between the two parts.
- the technical effect included in the embodiments of the present application by arranging the first member between the second parts of the adjacent battery cells along the first direction, the first member is pressed against the first part of the casing of the battery cell, when the battery assembly When impacted, the force received by the battery cell can be transmitted to the shell through the first member, reducing the impact force on the shell of the battery cell and improving the protection of the shell.
- the first member includes a first structural member and a second structural member, and the first structural member and the second structural member are detachably connected.
- the first component is formed by splicing the first structural part and the second structural part, which reduces the installation difficulty of the first component and improves production efficiency.
- first structural member and the second structural member are plug-connected along a second direction, and the second direction is perpendicular to the first direction.
- Technical effects included in some embodiments of the present application Simplify the connection structure between the first structural member and the second structural member.
- the first structural member includes a plurality of first blocks and a plurality of second blocks, and along the first direction, a plurality of the first blocks and a plurality of the second regions The blocks are set alternately.
- the second structural member includes a plurality of third blocks and a plurality of fourth blocks, and along the first direction, a plurality of the third blocks and a plurality of the fourth blocks are arranged alternately.
- the third block is detachably connected to the second block
- the fourth block is detachably connected to the first block.
- each of the first blocks is provided with a first block protrusion toward one end of the second structural member
- each of the fourth blocks is provided with a first block protrusion toward one end of the first structural member.
- the protrusion of the first block includes a first section and a second section, and the first section is connected between the first section and the second section, so The outer surface of the second section is provided with an inclined surface, and the cross-sectional area of the second section decreases gradually along the extending direction of the protrusion of the first block.
- the end of the third block facing the first structural member is provided with a third block protrusion
- the end of the second block facing the second structural member is provided with a second area A block recess
- the third block protrusion is plugged into the second block recess.
- the electrode terminals are connected to the electrode assembly and extend from the second part to the first part, and the electrode terminals of two adjacent cells are connected to the first region block or the side of the third block facing away from the cell assembly.
- the thickness of the second block is greater than the thickness of the first block
- the thickness of the fourth block is greater than the thickness of the third block
- the electrode The thickness of the terminal is less than or equal to the distance between the upper surface of the first block and the upper surface of the second block.
- a first connection portion is provided between the adjacent first block and the second block, and a first connection is provided on the side of the first connection portion facing the cell assembly.
- a concave portion, a second connection portion is provided between the adjacent third block and the fourth block, and a second connection concave portion is provided on the side of the second connection portion facing the cell assembly, along the first In two directions, opposite ends of the second portion are respectively disposed on the first connecting recess and the second connecting recess.
- the second connection recess and the second connection recess are used to avoid the second part of the cell casing, so that the first member can adapt to the shape of the cell assembly and at the same time
- the first member and the electric core assembly are limited to reduce the relative movement between the first member and the electric core assembly.
- one side of the first connection recess is provided with a first protrusion
- one side of the second connection recess is provided with a second protrusion
- the opposite sides of the second part are further Bending portions are respectively provided, and the first protruding portion and the second protruding portion abut against the bending portions.
- the side of the first connecting portion facing away from the cell assembly is provided with a first stepped surface, and the side of the second connecting portion facing away from the cell assembly
- a second step surface is provided, and first protrusions are provided inside the opposite sides of the housing, and the first protrusion is butted and connected to the first step surface and the second step surface.
- a first concave portion and a second concave portion are respectively provided on opposite sides of the second portion, the depth of the first concave portion is greater than the depth of the second concave portion, so The bending portion is disposed on the first concave portion.
- the bending part is provided on the side of the deep pit of the battery cell, which can reduce the situation that the second part protrudes from the surface of the battery cell, and improve the energy density of the battery cell.
- the housing along the second direction, includes a first side wall and a second side wall oppositely disposed, and a side of the first side wall facing the cell assembly is provided with a plurality of first sides.
- Wall recesses, the sides of a plurality of the electric cores are arranged in a plurality of the first side wall recesses, a first side wall protrusion is provided between adjacent first side wall recesses, and the first structural member
- a fourth connection recess is provided on one side facing the first side wall, and the first side wall protrusion is provided on the fourth connection recess.
- the combination of the first side wall concave part and the first side wall convex part forms a profiling groove, which is used to position a plurality of battery cells in the battery cell assembly, reducing the number of cells in the battery cell assembly. shaking.
- the fourth connecting concave portion on the first structural component is used to avoid the first side wall convex portion on the casing, and can also play a role in positioning the first structural component.
- the battery assembly further includes a circuit board, the circuit board is arranged on the side of the first structural member and the second structural member away from the battery cell assembly, and the circuit board is electrically connected to
- the casing includes a second protrusion, and the second protrusion is provided on a side of the circuit board away from the battery core assembly.
- the circuit board can be used to detect and control the charging condition of the electric core assembly, and the second protrusion cooperates with the circuit board, which can not only position the circuit board, but also use the circuit board as another
- a force transmission structure facilitates the transmission of the force received by the cell assembly to the casing.
- opposite ends of the first structural member are respectively provided with a first end portion and a second end portion, and opposite ends of the second structural member are respectively provided with a second end portion.
- Three ends and a fourth end the first end is connected to the third end, and the second end is connected to the fourth end.
- the Shore hardness C of the first member is greater than or equal to 70 degrees, so as to facilitate the transmission of the impact force received by the cell casing to the casing.
- Embodiments of the present application also provide a battery assembly, including a casing and a cell assembly disposed in the casing, the cell assembly includes a plurality of cells stacked along a first direction, and the cells include a casing, An electrode assembly and an electrode terminal, the casing includes a first part for accommodating the electrode assembly and a second part extending from the periphery of the first part, the electrode terminal is connected to the electrode assembly and extends from the first part A second portion extends from the first portion.
- the battery assembly further includes a first member, the first member includes an insulating material, the first member is connected to the casing, and along the first direction, the first member is disposed adjacent to the battery core between the second part.
- the technical effect included in the embodiments of the present application by arranging the first member connected to the casing, and arranging the first member between the second parts of the adjacent electric core along the first direction, the first member is pressed against the electric core
- the first part of the shell when the battery assembly is impacted, the force on the battery core can be transmitted to the shell through the first member, reducing the impact force on the battery shell and improving the protection of the battery shell.
- the first member includes a first structural member and a second structural member
- the outer shell includes a first shell and a second shell oppositely arranged along a second direction
- the first structural member connects the The first shell, the second structural component is connected to the second shell, and the first structural component is arranged opposite to the second structural component along the second direction.
- an end of the first structural member facing the second structural member is provided with a first recess
- an end of the second structural member facing the first structural member is provided with a first protrusion, so The first protrusion is located in the first recess.
- the first bump includes a first section and a second section, and along the extending direction of the first bump, the cross-sectional area of the first bump decreases gradually.
- a plurality of the first structural members are arranged at intervals between the second parts of the adjacent electric cores, and the number of the second structural members corresponds to the number of the first structural members one by one.
- the technical effects included in some embodiments of the present application pairing and connecting a plurality of first structural members and a plurality of second structural members, on the one hand, can improve the strength of the first member, and on the other hand, it is also beneficial to ensure the stability of the shell. Connection effect.
- the battery assembly further includes a first conductive member, the first conductive member is arranged on the side of the first structural member away from the battery core, and all the adjacent two battery cells
- the electrode terminal is connected to the first conductive element.
- the first conductive member is used to realize the electrical connection between the circuit board or external circuit components and the electric core
- the first conductive member is arranged on a side of the first structural member away from the electric core
- the electrode terminal can be sleeved on the first structural member when connected, so as to realize the positioning connection between the battery core assembly and the first member, and reduce the relative displacement between the first member and the battery core assembly.
- the battery assembly further includes a first conductive member disposed between adjacent second structural members along the first direction.
- the technical effect included in some embodiments of the present application is to allow the positive and negative electrode terminals of the battery cell to be connected to the corresponding first conductive member, so as to maintain the integrity of the circuit of the battery cell assembly.
- the battery assembly further includes a circuit board, and the first conductive member is electrically connected to the circuit board.
- a second recess is provided on a side of the first structural member away from the battery core, and the first conductive member is provided in the second recess.
- the first case includes a first side wall, and the first side wall is provided with a plurality of first recesses, and the side of the battery cell facing the first case is disposed on the first side wall.
- a recess, a first protrusion is provided between adjacent first recesses, and the first structure is connected to the first protrusion.
- the first structural member includes a first subsection and a second subsection, the first subsection is connected to one of the adjacent first recesses, and the second subsection is connected to Adjacent to the other one of the first recesses, along the direction opposite to the second direction, the length of the projection of the first subsection on the first side wall in the first direction does not exceed the length of the first recess
- the length of the first subsection in the first direction, the length of the projection of the second subsection on the first side wall in the first direction does not exceed the length of the first concave part in the first direction.
- the second subsection is not connected to the bottommost portion of the first recess, which facilitates the assembly of the housing.
- the first side wall includes a first support portion, the circuit board is disposed on the first support portion, the first structural member is connected to the first support portion, and the circuit board The first structural member is arranged on opposite sides of the first supporting part.
- the first shell and the first structural component are integrally formed, and the second shell and the second structural component are integrally formed.
- the technical effect included in some embodiments of the present application the way of integral molding can be injection molding, which can better transmit the impact force on the battery core, and is also conducive to reducing assembly steps and improving production efficiency.
- the first conductive member includes a first segment and a second segment, the first segment is disposed in the second concave portion, and the first support portion is disposed in the second segment and the between the first depressions.
- the supporting part can assist in positioning the first conductive element, and on the other hand, can also support the connection between the first conductive element and the circuit board.
- the first conductive member further includes a third section connecting the first section and the second section, the third section is inclined relative to the first section, and the first support
- the portion includes a first inclined surface, and the first inclined surface is connected to the first structural member.
- the electrode terminal includes a connection portion, the connection portion is connected to the first conductive member, and along the third direction, the first bump is at least partially disposed between the connection portion and the first conductive member.
- the third direction is perpendicular to both the first direction and the second direction.
- the first protrusion is at least partially disposed between the connection portion and the first portion, along the second direction, and the first protrusion is disposed between the connection portion and the first portion.
- the length of the part between the first parts is greater than 1/2 of the length of the connecting part.
- the second case includes a second side wall, and the second side wall is provided with a plurality of second recesses, and the side of the battery cell facing the second case is disposed on the first side wall.
- opposite sides of the second portion are respectively provided with bent portions, and the first member resists the bent portions.
- the technical effect included in some embodiments of the present application is to reduce the shaking of the second part in the electric core, so as to reduce the damage of the casing of the electric core due to the friction of the second part.
- Embodiments of the present application further provide an electric device, the electric device includes the battery assembly described in the foregoing embodiments.
- the electrical equipment includes, but is not limited to, electric vehicles, storage devices, drones, electric tools, and the like.
- the above-mentioned battery assembly arranges the first member between the second parts of the adjacent battery cells, so that the first member presses against the first part of the shell of the battery cell.
- the force received by the battery cell can pass A component is transmitted to the shell, reducing the impact force on the shell of the battery core and improving the protection of the shell.
- FIG. 1 is a schematic perspective view of the three-dimensional structure of a battery assembly in an embodiment.
- FIG. 2 is a schematic diagram of an exploded structure of the battery assembly shown in FIG. 1 .
- FIG. 3 is a schematic diagram of an exploded structure of a battery cell in the battery assembly shown in FIG. 2 .
- FIG. 4 is a schematic structural view of the cell assembly and the first member in the battery assembly shown in FIG. 1 .
- FIG. 5 is an enlarged view of a partial structure of the structure shown in FIG. 4 .
- FIG. 6 is a partial structural exploded view of the structure shown in FIG. 4 .
- FIG. 7 is an enlarged view of a partial structure of the structure shown in FIG. 6 .
- FIG. 8 is a top view of the first component in the battery assembly shown in FIG. 2 , and the structures of the first section, the second section, the third section, and the fourth section in the figure are not fully marked.
- Fig. 9 is a structural schematic diagram of the first structure shown in Fig. 8 before the first structural part is connected to the second structural part.
- FIG. 10 is a schematic cross-sectional structure diagram of the first member shown in FIG. 8 .
- FIG. 11 is a schematic side view of the first structural member and the second structural member in the second direction B.
- Fig. 12 is a schematic structural view of a cell in an embodiment.
- Fig. 13 is a front view of the cell shown in Fig. 12 .
- Fig. 14 is a side view of the cell shown in Fig. 12 .
- Fig. 15 is a structural schematic diagram of the cell assembly and the first member in another direction in the battery assembly shown in Fig. 1 .
- FIG. 16 is an enlarged view of a partial structure of the structure shown in FIG. 15 .
- FIG. 17 is a side view of the structure shown in FIG. 15 .
- FIG. 18 is a partially enlarged view of the structure shown in FIG. 17 .
- FIG. 19 is a top view of the battery assembly shown in FIG. 1 .
- FIG. 20 is a schematic cross-sectional structural view of the battery assembly shown in FIG. 19 .
- FIG. 21 is an enlarged view of a partial structure of the battery assembly shown in FIG. 20 .
- FIG. 22 is a schematic structural view of the battery assembly shown in FIG. 1 with part of the top structure removed.
- FIG. 23 is a top view of the structure shown in FIG. 22 .
- FIG. 24 is a schematic structural view of the battery assembly shown in FIG. 1 with the casing removed.
- FIG. 25 is an enlarged view of a partial structure of the structure shown in FIG. 24 .
- FIG. 26 is a top view of the battery assembly shown in FIG. 1 .
- FIG. 27 is a schematic cross-sectional structural view of the battery assembly shown in FIG. 23 .
- FIG. 28 is an enlarged view of a partial structure of the structure shown in FIG. 27 .
- FIG. 29 is a cross-sectional view of the battery assembly shown in FIG. 1 after cutting off part of the second side wall of the second case in the second direction.
- Fig. 1' is a schematic diagram of an exploded structure of a battery assembly in an embodiment.
- Fig. 2' is a side view of the battery assembly shown in Fig. 1' with the wire harness assembly removed.
- Fig. 3' is a schematic cross-sectional structure diagram of the battery assembly shown in Fig. 2', and the structure in the dotted circle frame is a partially enlarged view of the cross-sectional structure.
- Fig. 4' is a schematic structural view of the first casing in the casing of the battery assembly shown in Fig. 1'.
- Fig. 5' is a schematic structural view of the first shell shown in Fig. 4' in another direction, and the structure in the dotted circle frame is a partial enlarged view of the first shell.
- Fig. 6' is a schematic structural view of the second casing in the casing of the battery assembly shown in Fig. 1'.
- Fig. 7' is a schematic structural view of the second shell shown in Fig. 6' in another direction, and the structure in the dotted circle frame is a partially enlarged view of the second shell.
- Fig. 8' is a schematic diagram of the structure of the battery assembly shown in Fig. 1' after part of the structure is removed, and the structure in the dotted circle frame is a partially enlarged view.
- Fig. 9' is a side view of the battery assembly shown in Fig. 1' with the wire harness assembly removed.
- Fig. 10' is a schematic cross-sectional structure diagram of the battery assembly shown in Fig. 9', and the structure in the dotted circle frame is a partial enlarged view of the cross-sectional structure.
- Fig. 11' is a schematic diagram of the cross-sectional structure of the battery assembly shown in Fig. 9' in another direction, and the structure in the dotted circle frame is a partially enlarged view of the cross-sectional structure.
- Fig. 12' is a schematic structural view of the cell in the battery assembly shown in Fig. 1'.
- Fig. 13' is a schematic diagram of the structure before the first shell and the second shell are connected, wherein the first shell and the second shell have removed the top part of the structure.
- Fig. 14' is a schematic diagram of the cross-sectional structure after the first shell and the second shell are connected.
- Fig. 30 is a schematic structural diagram of an electrical device in an embodiment.
- the first block 311 The first block 311
- An embodiment of the present application provides a battery assembly, including a casing, a battery cell assembly, and a first component.
- the battery cell assembly is arranged in the casing, the battery cell assembly includes a plurality of battery cells stacked along the first direction, the battery cell includes a casing, an electrode assembly and an electrode terminal, and the casing includes a The electrode terminal is connected to the electrode assembly and extends from the second portion to the first portion.
- the first member includes an insulating material, and along the first direction, the first member is disposed between the second parts of the adjacent electric cores, and the Shore hardness of the first member is greater than or equal to 70 Spend.
- the above-mentioned battery assembly arranges the first member with a Shore hardness greater than or equal to 70 degrees between the second parts of the adjacent battery cells, so that the first member presses against the first part of the shell of the battery cell.
- the force received by the battery cell can be transmitted to the casing through the first member, thereby improving the protection of the battery cell casing.
- a battery assembly 100 includes a casing 10 , a cell assembly 20 and a first member 30 .
- the cell assembly 20 is disposed in the housing 10 , and the cell assembly 20 includes a plurality of cells 21 stacked along a first direction A.
- the cell 21 includes a casing 211, an electrode assembly 212 and an electrode terminal 213, the casing 211 includes a first part 2111 for accommodating the electrode assembly 212 and a second part extending from the periphery of the first part 2111 2112.
- the electrode assembly 212 includes a wound structure formed by winding a positive electrode sheet, a negative electrode sheet, and a separator.
- the casing 211 includes an aluminum-plastic film
- the battery cell 21 includes a soft-packed battery cell.
- the battery cell 21 includes a first concave portion 2114 and a second concave portion 2115 disposed on opposite sides of the second portion 2112 .
- the first recess 2114 and the second recess 2115 are formed by the first portion 2111 and the second portion 2112 .
- the two electrode terminals 213 a and 213 b are connected to the electrode assembly 212 and extend from the second portion 2112 to the first portion 2111 .
- the polarities of the two electrode terminals 213a and 213b are opposite, wherein the electrode terminal 213a may be positive, and the electrode terminal 213b may be negative.
- the first member 30 includes an insulating material.
- the first member 30 includes foam, such as EVA foam, whose vinyl acetate content is 5%-45%.
- the first member 30 is made of insulating material.
- the first member 30 is made of insulating material and metal material.
- the first member 30 is arranged between the second part 2112 of the adjacent battery core 21, and the Shore hardness C of the first member 30 is greater than or equal to 70 degrees, when When the battery assembly 100 is impacted, vibrated or impacted, the force received by the battery cell 21 can be transmitted to the casing 10 through the first member 30, reducing the impact force received by the housing 211 at the first recess 2114 and the second recess 2115, and lifting Protection of the housing 211 .
- the first member 30 includes a first structural member 31 and a second structural member 32 , and the first structural member 31 and the second structural member 32 are connected.
- the first structural member 31 and the second structural member 32 are detachably connected.
- the cell assembly 20 further includes a plurality of insulating members 22 , and one insulating member 22 is provided between any adjacent cells 21 .
- the insulating member 22 includes but not limited to compressible materials such as foam. The insulator 22 can be used to absorb the expansion volume of the battery core 21 during charging and discharging.
- the first structural member 31 and the second structural member 32 are plugged and connected along the second direction B, and the second direction B is connected to the first direction A is vertical, and the second direction B may be the width direction of the battery cell 21 .
- the first structure 31 includes a plurality of first blocks 311 and a plurality of second blocks 312 , and along the first direction A, the first blocks 311 and the second blocks 312 are arranged alternately.
- the second structural member 32 includes a plurality of third blocks 321 and a plurality of fourth blocks 322, and along the first direction A, the fourth blocks 322 are arranged alternately with the third blocks 321.
- the first structural member 31 and the second structural member 32 are connected to form the first member 30, the third block 321 is detachably connected to the second block 312, and the fourth block 322 is connected to the second block 312.
- the first block 311 is detachably connected.
- each of the first blocks 311 is provided with a first block protrusion 313 toward one end of the second structural member 32
- One end of each fourth block 322 facing the first structural member 31 is provided with a fourth block concave portion 323 corresponding to the first block convex portion 313
- Each of the third blocks 321 is provided with a third block protrusion 324 at one end facing the first structural member 31
- each of the second blocks 312 is provided with a third block protrusion 324 at one end facing the second structural member 32 .
- the second block concave portion 314 corresponds to the third block convex portion 324 .
- the first block protrusion 313 is plugged into the fourth block recess 323 .
- the third block protrusion 324 is plugged into the second block recess 314 .
- the first block protrusion 313 cooperates with the fourth block recess 323, and the third block protrusion 324 cooperates with the second block recess 314, which is conducive to lifting the first structure 31 and the second structure. The reliability of the connection between parts 32.
- the first block protrusion 313 includes a first section 3131 and a second section 3132 connected as one.
- the outer surface of the second section 3132 is provided with a slope 3133 , and along the second direction B perpendicular to the first direction A, the cross-sectional area of the second section 3132 gradually decreases.
- the second section 3132 can be used to guide the moving direction of the convex portion 313 of the first block, lowering the convex portion 313 of the first block and the concave portion of the fourth block.
- the difficulty of matching the concave portions 323 is favorable for inserting the convex portion 313 of the first block into the concave portion 323 of the fourth block.
- the structure of the convex part 324 of the third block is similar to that of the convex part 313 of the first block, and is a two-stage structure with different cross-sectional dimensions, and the structure of the convex part 324 of the third block will not be repeated here.
- first structural member 31 is respectively provided with a first end portion 317 and a second end portion 318
- second structural member 32 are respectively provided with a third end portion. end 327 and fourth end 328 .
- first structural member 31 and the second structural member 32 are plugged and connected, the first end 317 is connected to the third end 327, and the second end 318 is connected to the fourth end. 328.
- connection strength between the first structural member 31 and the second structural member 32 can be further improved by cooperating the two ends of the first structural member 31 and the second structural member 32 .
- the length of the first end portion 317 is greater than the length of the third end portion 327 , and the third end portion 327 is provided with a third recess toward one end of the first end portion 317 3271 , one end of the first end portion 317 facing the third end portion 327 is plugged into the third concave portion 3271 .
- the inner surface of the first end portion 317 is also provided with a first inclined surface 3171, which can be used to guide the moving direction of the first end portion 317 inserted into the third concave portion 3271, and lower the first end portion 317 and the third end portion 327. pairing difficulty.
- the structure of the fourth end portion 328 is the same as that of the first end portion 317, the structure of the second end portion 318 is the same as that of the third end portion 327, and the first structural member 31 is the same as that of the first end portion 317.
- the second structural member 32 is connected, the second end portion 318 and the fourth end portion 328 are plugged and connected.
- the electrode terminals 213 of two adjacent battery cells 21 are away from the battery core assembly at the first block 311 of the first structural member 31 Surfaces 3111 of 20 are connected to each other, or the electrode terminals 213 of two adjacent cells 21 are connected to each other on the side of the third block 321 of the second structure 32 away from the cell assembly 20 .
- the thickness D2 of the second block 312 is greater than the thickness D1 of the first block 311
- the thickness D4 of the fourth block 322 is greater than the thickness D3 of the third block 321
- the third direction C is perpendicular to the first direction A and the second direction B at the same time.
- the electrode terminals 213 may not exceed the second block 312 and the fourth block 322 , which can reduce the size of the battery assembly 100 and increase the energy density.
- the first structural member 31 includes a plurality of first protruding parts 3121, and the first protruding parts 3121 are arranged on opposite sides of the first block 311.
- a protruding portion 3121 is located at an end of the first block 311 away from the second structural member 32 , and the first protruding portion 3121 protrudes from the upper surface of the first block 311 .
- the first space formed by the first block 311 and the two first protruding parts 3121 can be used to accommodate the connecting piece 41 connected to the electrode terminal 213.
- the connecting piece 41 includes but is not limited to structures such as conductive sheets, which can be Made of metal material.
- the second structural member 32 includes a plurality of second protrusions 3221, the second protrusions 3221 are arranged on opposite sides of the third block 321, and the second protrusions 3221 are located on the
- the third block 321 is away from the end of the first structural component 31 , and the second protruding portion 3221 protrudes from the upper surface of the third block 321 .
- the two second protrusions 3221 of the third block 321 form a second space for accommodating the connecting piece 41 connected to the electrode terminal 213 .
- One end of the first protruding portion 3121 and the second protruding portion 3221 is connected to the second block 312 or the fourth block 322 , and the other end abuts the interconnected electrode terminals 213 to realize the electrode terminals 213 and the positioning between the first member 30.
- the housing 211 of the electric core 21 includes a first housing 211a and a second housing 211b, and the first housing 211a is connected to the second housing 211b, and the first shell 211a and the second shell 211b can be folded along the connection position, and along the first direction A, the first shell 211a and the second shell 211b are overlapped , forming the first portion 2111 of the casing 211 to cover the electrode assembly 212 .
- the peripheral side of the first casing 211a extends outward to form a first region 211c
- the peripheral side of the second casing 211b extends outward to form a second region 211d.
- the first area 211c overlaps with the second area 211d and is sealed to form the second shell 211.
- the electrode terminals 213 protrude from the casing 211 from a side of the second portion 2112 opposite to the connecting position.
- the opposite sides of the second part 2112 are respectively provided with bending parts 2113, and the bending parts 2113 are arranged in the first concave part 2114, which is beneficial to reduce the convexity of the second part 2112.
- the condition of protruding from the surface of the battery core 21 reduces the risk of damage to the bent portion 2113 .
- the first recess 2114 of one cell 21 is opposite to the first recess 2114 of the other cell 21, or the first recess 2114 of one cell 21 is opposite to the first recess 2114 of the other cell 21.
- the second concave portion 2115 of the other cell 21 is oppositely disposed.
- the bending portion 2113 may pass through the first structural member 31 and the second structural member 32 when the first structural member 31 and the second structural member 32 are plugged into each other.
- the structural member 32 is formed by extruding the second portion 2112 on both sides of the battery cell 21 .
- the function of resisting and limiting the bending portion 2113 can be realized.
- the bending portion 2113 can be formed by mechanical pressing to reduce the number of the first structural member 31 and the second structural member 32. The resistance of the second structural member 32 during installation improves the production efficiency of the battery assembly 100 .
- the first structural member 31 and the second structural member 32 are connected to the bending portion 2113 to limit the movement of the bending portion 2113 .
- the projection of the bending portion 2113 at least partially overlaps with the projection of the first structural member 31 , so as to limit the movement of the bending portion 2113 .
- the projection of the bending portion 2113 at least partially overlaps the projection of the second structural member 32 , so as to limit the movement of the bending portion 2113 .
- a first connecting portion 315 is disposed between the blocks 312 , and the first connecting portion 315 includes a first connecting concave portion 3151 disposed on a side close to the cell assembly 20 .
- a second connection portion 325 is provided between the adjacent third block 321 and the fourth block 322 , and the second connection portion 325 includes a second connection on a side close to the cell assembly 20 Recess 3251.
- the opposite ends of the second part 2112 of the electric core 21 are respectively provided in the first connection recess 3151 and the second connection recess 3251, so that the first member 30 can fit the electric core assembly
- the shape structure of the first member 30 and the electric core assembly 20 can reduce the relative movement between the first member 30 and the electric core assembly 20 .
- first connection recess 3151 is further provided with a first protrusion 3152
- second connection recess 3251 is further provided with a second protrusion 3252 .
- the side of the first connecting portion 315 facing away from the cell assembly 20 is provided with a first stepped surface 3153
- the side of the second connecting portion 325 facing away from the cell assembly 20 A second stepped surface 3253 is provided.
- the first convex portion 13 is resisted and connected to the first stepped surface 3153 and the second stepped surface 3253, on the one hand, it is beneficial to transfer the force received by the battery cell 21 to the casing 10 through the first member 30,
- the first member 30 and the housing 10 can be limited to reduce the displacement of the first member 30 .
- the housing 10 includes a first shell 11 and a second shell 12 connected to each other, the first shell 11 includes a first side wall 111, The second shell 12 includes a second side wall 121 , and the first side wall 111 is opposite to the second side wall 121 along the second direction B.
- the side of the first side wall 111 facing the cell assembly 20 is provided with a plurality of first side wall recesses 112 , and the sides of the plurality of cells 21 are provided in the plurality of first side wall recesses 112 .
- a first side wall protrusion 113 is provided between adjacent first side wall recesses 112, and the combination of the first side wall recess 112 and the first side wall protrusion 113 forms a profiling groove for positioning the cell assembly 20.
- the plurality of battery cells 21 reduces the shaking of the battery cell assembly 20 in the casing 10 .
- the first structural member 31 is provided with a plurality of fourth connection recesses 316 on the side facing the first side wall 111, the first side wall protrusion 113 is provided in the fourth connection recesses 316, and the fourth connection The concave portion 316 restricts the movement of the first structural member 31 .
- the side of the second side wall 121 facing the cell assembly 20 is also provided with a plurality of second side wall recesses 122, and the positions of the second side wall recesses 122 correspond to the positions of the first side wall recesses 112,
- a side of the plurality of battery cells 21 facing away from the first sidewall 111 is disposed in the plurality of second sidewall recesses 122 .
- a second side wall protrusion 123 is provided between the adjacent second side wall recesses 122, and the second side wall recess 122 and the second side wall protrusion 123 form a profiling groove on the second side wall 121.
- the profiling grooves on the first side wall 111 work together to clamp and position the cell assembly 20 , further improving the stability of the cell assembly 20 in the housing 10 .
- the second structural member 32 is further provided with a plurality of sixth connection recesses 326 on the side facing the second side wall 121, and the second side wall protrusion 123 is disposed in the sixth connection recesses 326, so that The sixth connecting concave portion 326 can limit the movement of the second structural member 32 .
- the battery assembly 100 also includes a circuit board 40, the battery core assembly 20 is electrically connected to the circuit board 40, and the circuit board 40 is provided with There is a chip 42 including several electronic circuit components, which is used to control the charge and discharge current of the cell assembly 20 and monitor the charge and discharge temperature of the cell assembly 20 .
- the circuit board 40 is disposed on a side of the first structural member 31 and the second structural member 32 away from the cell assembly 20 .
- the circuit board 40 is electrically connected to the electrode terminals 213 of the cell assembly 20 .
- the casing 10 includes a first protruding portion 13 , and the first protruding portion 13 is disposed on a side of the circuit board 40 close to the cell assembly 20 .
- the casing 10 further includes a second protrusion 14 , and the second protrusion 14 is disposed on a side of the circuit board 40 away from the cell assembly 20 .
- the circuit board 40 can be used to detect and control the charging and discharging of the cell assembly 20, and the circuit board 40 can be used as another force transmission structure through the cooperation between the first protrusion 13 and the circuit board 40, It is beneficial to transfer the force received by the cell assembly 20 to the casing 10 .
- the first shell 11 further includes a first top wall 114 , a first bottom wall 115 , a first end wall 116 and a second end wall 117 disposed around the first side wall 111 .
- the second shell 12 further includes a second top wall 124 , a second bottom wall 125 , a third end wall 126 and a fourth end wall 127 disposed around the second side wall 121 .
- first top wall 114 and the second top wall 124 are oppositely arranged and detachably connected, and the first bottom wall 115 is oppositely arranged and detachably connected to the second bottom wall 125 , the first end wall 116 is opposite to the third end wall 126 and is detachably connected, and the second end wall 117 is opposite to the fourth end wall 127 and is detachably connected.
- the first convex portion 13 and the second convex portion 14 are spaced apart from the first side wall 111 along the third direction C, and the first convex portion 13 and the second convex portion 14 are arranged along the third direction C intervals are disposed on the second sidewall 121 .
- the outer surfaces of the first side wall 111 and the second side wall 121 are also provided with a plurality of grooves, which are used to form a heat dissipation structure on the surface of the casing 10 of the battery assembly 100, increase the heat dissipation area of the casing 10, and improve the battery capacity.
- the heat dissipation performance of the component 100 is also provided with a plurality of grooves, which are used to form a heat dissipation structure on the surface of the casing 10 of the battery assembly 100, increase the heat dissipation area of the casing 10, and improve the battery capacity.
- a plurality of connectors 41 are also connected to the circuit board 40 , and the plurality of connectors 41 are connected between the cell assembly 20 and the circuit board 40 .
- the connection parts of the electrode terminals 213 of adjacent battery cells 21 are all connected to a connecting member 41 .
- each of the connectors 41 is located on the upper surface of the first block 311 or the third block 321, and each of the connectors 41 is at least partially disposed on the corresponding Adjacent to the first block 311 , or disposed between the adjacent third block 321 , thereby reducing the extra space occupied by the connector 41 and increasing the energy density of the battery assembly 100 .
- the battery assembly 100 further includes a wire harness assembly 50 , a first end 51 of the wire harness assembly 50 is connected to the circuit board 40 , and a second end 52 of the wire harness assembly 50 extends out of the casing 10 .
- the first end wall 116 and the third end wall 126 of the housing 10 are respectively provided with a first opening 1161 and a second opening 1261, when the first shell 11 and the second shell 12 are assembled, the The first opening 1161 communicates with the second opening 1261 , and the second end 52 of the wire harness assembly 50 protrudes from the housing 10 through the first opening 1161 and the second opening 1261 .
- the second end 52 of the wire harness assembly 50 is also provided with a connector 53 for connecting external devices to realize the charging or discharging process of the battery assembly 100 .
- the battery pack of this embodiment is similar to the aforementioned embodiment of the battery assembly 100, and the omitted parts in this embodiment are the same as those of the aforementioned embodiment of the battery assembly 100 Or repeated descriptions of similar structures, this implementation focuses on describing the differences of the previous implementations.
- the parts that are the same as those of the battery assembly 100 use the same numbers, and detailed descriptions are omitted. For further distinction, the same numbers are added with a distinguishing symbol ' in this embodiment.
- the first member 30' is connected to the housing 10', and the Shore hardness C of the first member is greater than or equal to 70 degrees.
- the first member 30' is disposed between the second portions 2112' of the adjacent battery cells 21'.
- the force received by the battery cell 21' can be transmitted to the shell 10' through the first member 30', and the force that impacts the shell 211' of the battery cell 21' is transferred to the shell 10'
- the impact force on the weak area on the top of the battery cell 21' shell 211' is reduced, and the protection of the shell 211' is improved.
- FIG. 1' Please refer to FIG. 1' again, the cell assembly 20' further includes a plurality of insulating members 22', and an insulating member 22' is provided between any adjacent cells 21'.
- the insulating member 22' includes, but is not limited to, compressible materials such as foam. The insulator 22' can be used to absorb the expansion volume of the battery core 21' during charging and discharging.
- the end of the first structural member 31' facing the second structural member 32' is provided with a second block recess 311'
- the One end of the second structural member 32 ′ facing the first structural member 31 ′ is provided with a first block protrusion 321 ′
- the first structural member 31 ′ is assembled with the second structural member 32 to form the first member 30 '
- the first block convex portion 321' is disposed in the second block concave portion 311'.
- the mutual cooperation between the first block convex part 321' and the second block concave part 311' is beneficial to improve the connection reliability between the first structural part 31' and the second structural part 32', and reduce the first structure
- the problem of detachment of the component 31' from the second structural component 32' is eliminated, and the stability of the first component 30' is maintained.
- the first block protrusion 321' includes a first section 3211' and a second section 3212'.
- the second section 3212' is provided with an inclined surface, along the extension direction of the first section protrusion 321', that is, the second direction B, the second section 3212 on the first section protrusion 321'
- the cross-sectional area of ' gradually decreases, which is beneficial to guide the moving direction of the first block convex part 321', and facilitates the insertion of the first block convex part 321' into the second block concave part 311'.
- the first section 3211' interferes with the second block recess 311' cooperation, so as to improve the firmness of the connection between the first structural member 31' and the second structural member 32'.
- a plurality of the first structural members 31' are spaced between the second parts 2112' of the adjacent battery cells 21', and each The first structural member 31' is disposed between the first recesses 2114' of adjacent battery cells 21'.
- the number of the second structural members 32' corresponds one-to-one with the first structural members 31'.
- a plurality of the first structural members 31' can also be arranged between the second parts 2112' of any adjacent electric cores 21', so that the first recesses 2114' of the electric cores 21' and the second recess 2115' are provided with a first member 30', thereby increasing the pressure of the first member 30' on the top of the first part 2111' of the battery cell 21', effectively transmitting the force received by the battery cell 21', and further protecting Housing 211'.
- the first shell 11' includes a first side wall 111', and the first side wall 111' is provided with a plurality of first side wall recesses 112', and the battery cell 21' facing the side of the first shell 11 is provided in the first side wall recess 112', and a first side wall protrusion 113' is provided between the adjacent first side wall recesses 112'.
- the first structural member 31' is connected to the first side wall protrusion 113'.
- the first structural member 31' further includes a first subsection 312' and a second subsection 313', the first subsection 312' is connected to one of the adjacent first side wall recesses 112', the The second subsection 313' is connected to the other adjacent first side wall recess 112', thereby increasing the connecting area between the first structural member 31' and the first shell 11', so as to lift the first structural member 31' The connection strength with the first shell 11'.
- the length of the projection of the first subsection 312' on the first side wall 111' in the first direction A does not exceed the length of the first side wall recess 112' in the first direction A
- the length of the projection of the second subsection 313' on the first side wall 111' in the first direction A does not exceed the length of the first side wall recess 112' in the first direction A, and the first structural member 31' One end facing the first case 11' is not connected to the bottommost portion of the first side wall recess 112', which facilitates the assembly of the battery assembly 100'.
- the second shell 12' includes a second side wall 121', and the second side wall 121' is provided with a plurality of second side wall recesses 122', and the battery core 21' faces toward the side of the second shell 12'.
- One side is disposed on the second side wall recess 122'.
- a second sidewall protrusion 123' is disposed between adjacent second sidewall recesses 122', and the second structure 32' is connected to the second sidewall protrusion 123'.
- the second structural member 32' further includes a third subsection 322' and a fourth subsection 323', the third subsection 322' is connected to one of the adjacent second side wall recesses 122', the The fourth subsection 323' is connected to the other adjacent second side wall recess 122', thereby increasing the connecting area between the second structural member 32' and the second shell 12', and improving the connection between the second structural member 32' and the second shell 12'.
- the connection strength of the second shell 12' along the second direction B, the length of the projection of the third subsection 322' on the second side wall 121' in the first direction A does not exceed the length of the second side wall concave portion 122' in the first direction A, and the second side wall recess 122' in the first direction A.
- the length of the projection of the quadrant 323' on the second side wall 121' in the first direction A does not exceed the length of the second side wall recess 122' in the first direction A, and the second structural member 32' faces the second shell
- One end of 12' is not connected to the bottommost portion of the second side wall recess 122', which makes it easier to assemble the battery assembly 100'.
- the first shell 11' and the first structural member 31' are integrally formed, and the second shell 12' and the second structural member 32' may also be One-piece construction.
- the way of integral molding includes but not limited to injection molding, which can enable the first structural member 31' and the second structural member 32' to better transmit the force received by the battery cell 21', and also help to reduce the assembly steps of the battery assembly 100', Increase productivity.
- the first structural member 31' can be connected to the first shell 11' in other ways, such as buckle fixing, screw fixing, adhesive fixing and the like.
- the second structural member 32' can be connected to the second shell 12' in other ways, such as buckle fixing, screw fixing, adhesive fixing and the like.
- the battery assembly 100' further includes a circuit board 40' and a connector 41'.
- the connecting member 41' is arranged on the side of the first structural member 31' away from the battery core 21', and the electrode terminals 213' of two adjacent battery cells 21' are connected to the connecting member. 41'.
- the connecting piece 41' is arranged on the side of the first structural member 31' away from the electric core 21', and the electrode terminal 213' is also connected to the connecting piece 41' on the first structural member 31', so that the electric core assembly 20' and the The positioning connection between the first member 30' reduces the relative displacement between the first member 30' and the cell assembly 20'.
- the connector 41' is also arranged between the adjacent second structural members 32', so that in the cell assembly 20', the positive and negative electrode terminals 213 of the cell 21' 'can be connected to the corresponding connector 41' to maintain the integrity of the circuit of the cell assembly 20'.
- the multiple connectors 41' are also electrically connected to the circuit board 40', so as to realize the electrical connection between the cell assembly 20' and the circuit board 40'. Please refer to Fig. 4' and Fig.
- the first side wall 111' includes a first support portion 114', the circuit board 40' is attached to the first support portion 114', and the first structural member 31' is connected to the first support portion 114' , along the third direction C, the first structural member 31' and the circuit board 40' are located on opposite sides of the first support portion 114'.
- the connector 41' includes a first section 411' and a second section 412', the first section 411' is set in the fourth recess 314', and the first supporting part 114' is set in the second between the segment 412' and the first sidewall recess 112'.
- the first supporting part 114' can assist in positioning the connecting part 41', and on the other hand, the first supporting part 114' can also support the connection between the connecting part 41' and the circuit board 40'.
- the connecting member 41' further includes a third section 413' connecting the first section 411' and the second section 412', and the third section 413' is inclined relative to the first section 411' set up.
- the first supporting part 114' includes a second inclined surface 1141', and the second inclined surface 1141' is connected to the first structural member 31', so as to facilitate the assembly of the battery assembly 100'.
- the electrode terminal 213' includes a connection part 2131', and the connection part 2131' is connected to the connection part 41'.
- the first block protrusion 321 ′ is at least partially disposed between the connecting portion 2131 ′ and the first portion 2111 ′ of the battery core 21 ′, so as to lift the first structural member 31
- the connection strength between ' and the second structural member 32' allows the first member 30' to better press the shell 211' of the battery core 21', thereby improving the impact resistance of the shell 211'.
- the length of the portion of the first block protrusion 321 ′ disposed between the connecting portion 2131 ′ and the first portion 2111 ′ is longer than 1/2 of the length of the connecting part 2131', by further limiting the dimensional relationship of the insertion of the first block convex part 321' into the second block concave part 311', the first member 30' can effectively resist the battery cell 21' Housing 211'.
- the embodiment of the present application also provides an electric device 200, which includes the battery assembly 100 or the battery assembly 100' described in the above embodiments.
- the electrical equipment 200 includes, but is not limited to, electric vehicles, energy storage equipment, unmanned aerial vehicles, electric tools, and the like.
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- Connection Of Batteries Or Terminals (AREA)
Abstract
一种电池组件和具有该电池组件的用电设备,电池组件包括外壳、电芯组件和第一构件,所述电芯组件设于所述外壳内,所述电芯组件包括多个沿第一方向堆叠设置的电芯,所述电芯包括壳体、电极组件和电极端子,所述壳体包括用于收容所述电极组件的第一部分和自所述第一部分周边延伸形成的第二部分,所述电极端子连接于所述电极组件并自所述第二部分延伸出所述第一部分,所述第一构件包括绝缘材料,沿所述第一方向,所述第一构件设于相邻所述电芯的所述第二部分之间,使第一构件抵压电芯的壳体的第一部分,当电池组件受到冲击时,电芯受到的力能通过第一构件传递到外壳上,减少电芯的壳体受到的冲击力,提升对壳体的保护。
Description
本申请涉及电化学装置领域,尤其涉及一种电池组件和具有该电池组件的用电设备。
具有多个电芯的电池组件在使用过程中,受复杂的使用环境影响,电池组件容易受到撞击、振动或冲击等,此时,电芯内的电解液在惯性作用下会冲击电芯壳体,有必要的进一步提升对电芯壳体的保护。
发明内容
鉴于上述状况,本申请提供一种能够改善上述问题的电池组件和具有该电池组件的用电设备。
本申请的实施例提供的电池组件包括外壳、电芯组件和第一构件,所述电芯组件设于所述外壳内,所述电芯组件包括多个沿第一方向堆叠设置的电芯,所述电芯包括壳体、电极组件和电极端子,所述壳体包括用于收容所述电极组件的第一部分和自所述第一部分周边延伸形成的第二部分,所述电极端子连接于所述电极组件并自所述第二部分延伸出所述第一部分,所述第一构件包括绝缘材料,沿所述第一方向,所述第一构件设于相邻所述电芯的所述第二部分之间。本申请的实施例包括的技术效果:通过将第一构件沿第一方向设置于相邻电芯的第二部分之间,使第一构件抵压电芯的壳体的第一部分,当电池组件受到冲击时,电芯受到的力能通过第一构件传递到外壳上,减少电芯的壳体受到的冲击力,提升对壳体的保护。
在一些实施例中,所述第一构件包括第一结构件和第二结构件,所述第一结构件和所述第二结构件可拆卸地连接。本申请的一些实施例中包括的技术效果:利用第一结构件和第二结构件拼接形成第一构件,降低第一构件的安装难度,提高生产效率。
在一些实施例中,所述第一结构件和所述第二结构件沿第二方向对插连接,所述第二方向与所述第一方向垂直。本申请的一些实施例中包括的技术效果:简化第一结构件和第二结构件之间的连接结构。
在一些实施例中,所述第一结构件包括多个第一区块和多个第二区块,沿所述第一方向,多个所述第一区块和多个所述第二区块交替设置。所述第二结构件包括多个第三区块和多个第四区块,沿所述第一方向,多个所述第三区块与多个所述第四区块交替设置。所述第三区块与所述第二区块可拆卸地连接,所述第四区块与所述第一区块可拆卸地连接。本申请的一些实施例中包括的技术效果:让第一结构件和第二结构件的不同区块交替连接,提升第一结构件与第二结构件之间的连接强度。
在一些实施例中,每个所述第一区块朝向所述第二结构件的一端设有第一区块凸部,每个所述第四区块朝向所述第一结构件的一端设有第二区块凹部,所述第一区块凸部插接于所述第二区块凹部。本申请的一些实施例中包括的技术效果:第一区块凸部与第二区块凹部之间相互配合,有利于提升第一结构件和第二结构件之间的连接可靠性。
在一些实施例中,所述第一区块凸部包括第一区段和第二区段,所述第一区段连接于所述第一区块与所述第二区段之间,所述第二区段的外表面设有斜面,沿所述第一区块凸部的延伸方向,所述第二区段的截面面积逐渐减小。本申请的一些实施例中包括的技术效果:第一区块凸部与第二区块凹部插接时,第二区段用于导向第一区块凸部移动方向,降低第一区块凸部与第二区块凹部配对的难度,让第一区块凸部顺利进入第二区块凹部。
在一些实施例中,所述第三区块朝向所述第一结构件的一端设有第三区块凸部, 所述第二区块朝向所述第二结构件的一端设有第二区块凹部,所述第三区块凸部插接于所述第二区块凹部。本申请的一些实施例中包括的技术效果:第三区块凸部与第二区块凹部之间相互配合,有利于进一步提升第一结构件和第二结构件之间的连接可靠性。
在一些实施例中,所述电极端子连接于所述电极组件并自所述第二部分延伸出所述第一部分,相邻两个所述电芯的所述电极端子连接于所述第一区块或所述第三区块背离所述电芯组件的一侧。本申请的一些实施例中包括的技术效果:提升电芯组件与第一构件之间的连接可靠性。
在一些实施例中,沿第三方向,所述第二区块的厚度大于所述第一区块的厚度,所述第四区块的厚度大于所述第三区块的厚度,所述电极端子的厚度小于等于所述第一区块的上表面与所述第二区块的上表面之间的距离。本申请的一些实施例中包括的技术效果:让电池组件组装完成后,电极端子的表面不超过第一构件的表面,减小电池组件的外形尺寸,提升能量密度。
在一些实施例中,相邻所述第一区块与所述第二区块之间设有第一连接部,所述第一连接部朝向所述电芯组件的一侧设有第一连接凹部,相邻所述第三区块和所述第四区块之间设有第二连接部,所述第二连接部朝向所述电芯组件的一侧设有第二连接凹部,沿第二方向,所述第二部分的相对两端分别设于所述第一连接凹部和所述第二连接凹部。本申请的一些实施例中包括的技术效果:利用第二连接凹部和第二连接凹部避空电芯壳体的第二部分,使第一构件能够适配电芯组件的外形结构,同时也能限位第一构件与电芯组件,减少第一构件与电芯组件之间的相对移动。
在一些实施例中,所述第一连接凹部的一侧设有第一凸出部,所述第二连接凹部的一侧设有第二凸出部,所述第二部分的相对两侧还分别设有弯折部,所述第一凸出部和所述第二凸出部抵持所述弯折部。本申请的一些实施例中包括的技术效果:减少电芯中第二部分的晃动,以降低电芯的壳体损坏的风险。
在一些实施例中,沿所述第二方向,所述第一连接部背离所述电芯组件的一侧设有第一台阶面,所述第二连接部背离所述电芯组件的一侧设有第二台阶面,所述外壳的相对两侧内部还设有第一凸部,所述第一凸部抵持连接于所述第一台阶面和所述第二台阶面。本申请的一些实施例中包括的技术效果:外壳的第一凸部抵持第一构件上的第一台阶面和第二台阶面,一方面有利于将电芯受到的力传递至外壳,另一方面可以限位第一构件,减少第一构件发生位移的问题。
在一些实施例中,沿所述第一方向,所述第二部分的相对两侧分别设有第一凹部和第二凹部,所述第一凹部的深度大于所述第二凹部的深度,所述弯折部设于所述第一凹部。本申请的一些实施例中包括的技术效果:将弯折部设于电芯的深坑侧,能够减少第二部分凸伸出电芯表面的情况,提升电芯的能量密度。
在一些实施例中,沿第二方向,所述外壳包括相对设置的第一侧壁和第二侧壁,所述第一侧壁朝向所述电芯组件的一侧设有多个第一侧壁凹部,多个所述电芯的侧边设于多个所述第一侧壁凹部,相邻所述第一侧壁凹部之间设有第一侧壁凸部,所述第一结构件朝向所述第一侧壁的一侧设有第四连接凹部,所述第一侧壁凸部设于所述第四连接凹部。本申请的一些实施例中包括的技术效果:第一侧壁凹部和第一侧壁凸部组合形成仿形槽,用于定位电芯组件中的多个电芯,减少电芯组件在外壳中的晃动。第一结构件上的第四连接凹部用于避空外壳上的第一侧壁凸部,同时也能起到定位第一结构件的作用。
在一些实施例中,所述电池组件还包括电路板,所述电路板设置于所述第一结构件和所述第二结构件背离所述电芯组件的一侧,所述电路板电连接所述电芯组件的电极端子,所述外壳包括第二凸部,所述第二凸部设于所述电路板背离所述电芯组件的一侧。本申请的一些实施例中包括的技术效果:电路板可以用于检测和控制电芯组件的充电情况,第二凸部与电路板相互配合,既能够定位电路板,又可以将电路板作为另一个力传递结构,有利于将电芯组件受到的力传递至外壳。
在一些实施例中,沿所述第一方向,所述第一结构件的相对两端分别设有第一端 部和第二端部,所述第二结构件的相对两端分别设有第三端部和第四端部,所述第一端部连接所述第三端部,所述第二端部连接所述第四端部。本申请的一些实施例中包括的技术效果:第一结构件和第二结构件的两端相互配合,能够进一步提升第一结构件和第二结构件之间的连接强度,维持第一构件的完整性。
在一些实施例中,所述第一构件的邵氏硬度C大于等于70度,以利于将电芯壳体受到的冲击力传递到外壳。
本申请的实施例还提供一种电池组件,包括外壳和设于外壳内的电芯组件,所述电芯组件包括多个沿第一方向堆叠设置的电芯,所述电芯包括壳体、电极组件和电极端子,所述壳体包括用于收容所述电极组件的第一部分和自所述第一部分周边延伸形成的第二部分,所述电极端子连接于所述电极组件并自所述第二部分延伸出所述第一部分。所述电池组件还包括第一构件,所述第一构件包括绝缘材料,所述第一构件连接所述外壳,沿所述第一方向,所述第一构件设于相邻所述电芯的所述第二部分之间。本申请的实施例包括的技术效果:通过设置与外壳连接的第一构件,并将第一构件沿第一方向设置于相邻电芯的第二部分之间,使第一构件抵压电芯的壳体的第一部分,当电池组件受到冲击时,电芯受到的力能通过第一构件传递到外壳上,减少电芯壳体受到的冲击力,提升对电芯壳体的保护。
在一些实施例中,所述第一构件包括第一结构件和第二结构件,所述外壳包括沿第二方向相对设置的第一壳和第二壳,所述第一结构件连接所述第一壳,所述第二结构件连接所述第二壳,沿所述第二方向,所述第一结构件与所述第二结构件相对设置。本申请的一些实施例中包括的技术效果:将第一结构件和第二结构件分别与第一壳和第二壳连接,外壳组装时即可实现第一结构件和第二结构件的组装,提高生产效率。
在一些实施例中,所述第一结构件朝向所述第二结构件的一端设有第一凹部,所述第二结构件朝向所述第一结构件的一端设有第一凸块,所述第一凸块设于所述第一凹部。本申请的一些实施例中包括的技术效果:第一凸块与第一凹部之间相互配合,有利于提升第一结构件和第二结构件之间的连接可靠性。
在一些实施例中,所述第一凸块包括第一区段和第二区段,沿所述第一凸块的延伸方向,所述第一凸块的截面面积逐渐减小。
在一些实施例中,多个所述第一结构件间隔设于相邻所述电芯的所述第二部分之间,所述第二结构件的数量与所述第一结构件一一对应。本申请的一些实施例中包括的技术效果:让多个第一结构件和多个第二结构件一一配对连接,一方面可以提升第一构件的强度,另一方面也有利于保证外壳的连接效果。
在一些实施例中,所述电池组件还包括第一导电件,所述第一导电件设于所述第一结构件背离所述电芯的一侧,相邻两个所述电芯的所述电极端子连接于所述第一导电件。本申请的一些实施例中包括的技术效果:第一导电件用于实现电路板或外部电路元件与电芯的电连接,将第一导电件设于第一结构件背离所述电芯的一侧,可以让电极端子连接时套设在第一结构件上,实现电芯组件与第一构件之间的定位连接,减少第一构件与电芯组件之间的相对位移。
在一些实施例中,所述电池组件还包括第一导电件,沿所述第一方向,所述第一导电件设于相邻所述第二结构件之间。本申请的一些实施例中包括的技术效果:让电芯的正负极电极端子均能连接相应的第一导电件,维持电芯组件的电路完整。
在一些实施例中,所述电池组件进一步包括电路板,所述第一导电件电连接所述电路板。
在一些实施例中,所述第一结构件背离所述电芯的一侧设第二凹部,所述第一导电件设于所述第二凹部。本申请的一些实施例中包括的技术效果:有利于第一导电件在第一结构件上的定位,减少第一导电件的晃动。
在一些实施例中,所述第一壳包括第一侧壁,所述第一侧壁设有多个第一凹陷部,所述电芯朝向所述第一壳的一侧设于所述第一凹陷部,相邻所述第一凹陷部之间设有第一凸出部,所述第一结构件连接所述第一凸出部。本申请的一些实施例中包括的技术效果:有利于定位所述第一结构件与所述第一壳。
在一些实施例中,所述第一结构件包括第一分部和第二分部,所述第一分部连接于相邻所述第一凹陷部的一个,所述第二分部连接于相邻所述第一凹陷部的另一个,沿与第二方向相反的方向,所述第一分部在所述第一侧壁的投影在第一方向上的长度不超过所述第一凹陷部在第一方向上的长度,所述第二分部在所述第一侧壁的投影在第一方向上的长度不超过所述第一凹陷部在第一方向上的长度。本申请的一些实施例中包括的技术效果:第二分部没有连接到第一凹陷部的最底部,更方便外壳的组装。
在一些实施例中,所述第一侧壁包括第一支撑部,所述电路板设于所述第一支撑部,所述第一结构件连接于所述第一支撑部,所述电路板和所述第一结构件设于第一支撑部相对的两侧。本申请的一些实施例中包括的技术效果:为电路板提供定位和支撑效果,并进一步提升第一结构件与第一壳之间的连接强度。
在一些实施例中,所述第一壳和所述第一结构件为一体成型结构,所述第二壳和所述第二结构件为一体成型结构。本申请的一些实施例中包括的技术效果:一体成型的方式可以是注塑成型,能够更好的传递电芯受到的冲击力,同时也有利于减少装配步骤,提高生产效率。
在一些实施例中,所述第一导电件包括第一段和第二段,所述第一段设于所述第二凹部,所述第一支撑部设于所述第二段和所述第一凹陷部之间。本申请的一些实施例中包括的技术效果:一方面支撑部可以辅助定位第一导电件,另一方面也可以支撑第一导电件与电路板的连接处。
在一些实施例中,所述第一导电件还包括连接所述第一段和所述第二段的第三段,所述第三段相对所述第一段倾斜设置,所述第一支撑部包括第一倾斜面,所述第一倾斜面连接于所述第一结构件。本申请的一些实施例中包括的技术效果:方便进行电池组件的组装过程。
在一些实施例中,所述电极端子包括连接部,所述连接部与所述第一导电件连接,沿第三方向,所述第一凸块至少部分设于所述连接部和所述第一部分之间,所述第三方向同时垂直于所述第一方向和所述第二方向。本申请的一些实施例中包括的技术效果:有利于保证第一结构件和第二结构件的连接强度,让第一构件更好地压住电芯的壳体,进一步保护电芯壳体。
在一些实施例中,所述第一凸块至少部分设于所述连接部和所述第一部分之间,沿所述第二方向,且所述第一凸块设于所述连接部和所述第一部分之间部分的长度大于所述连接部长度的1/2。本申请的一些实施例中包括的技术效果:进一步限定第一凸块插入第一凹部的尺寸关系,让第一构件能够有效抵持电芯的壳体。
在一些实施例中,所述第二壳包括第二侧壁,所述第二侧壁设有多个第二凹陷部,所述电芯朝向所述第二壳的一侧设于所述第二凹陷部,相邻所述第二凹陷部之间设有第二凸出部,所述第二结构件连接所述第二凸出部。
在一些实施例中,沿第二方向,所述第二部分的相对两侧还分别设有弯折部,所述第一构件抵持所述弯折部。本申请的一些实施例中包括的技术效果:减少电芯中第二部分的晃动,以降低电芯的壳体因第二部分摩擦而出现破损的问题。
本申请的实施例还提供一种用电设备,所述用电设备包括上述实施例所述的电池组件。所述用电设备包括但不限于电动车、存储设备、无人机、电动工具等。
上述电池组件通过在相邻电芯的第二部分之间设置第一构件,使第一构件抵压电芯的壳体的第一部分,当电池组件受到冲击时,电芯受到的力能通过第一构件传递到外壳上,减少电芯的壳体受到的冲击力,提升对壳体的保护。
图1为电池组件在一实施例中的立体结构示意图。
图2为图1所示电池组件的分解结构示意图。
图3为图2所示电池组件中电芯的分解结构示意图。
图4为图1所示电池组件中,电芯组件和第一构件的结构示意图。
图5为图4所示结构的局部结构放大图。
图6为图4所示结构的部分结构分解图。
图7为图6所示结构的局部结构放大图。
图8为图2所示电池组件中第一构件的俯视图,图中的第一区段、第二区段、第三区段、第四区段等结构并未完全标注。
图9为图8所示第一构件中第一结构件与第二结构件连接之前的结构示意图。
图10为图8所示第一构件的剖面结构示意图。
图11为第一结构件和第二结构件在第二方向B的侧视结构示意图。
图12为电芯在一实施例中的结构示意图。
图13为图12所示电芯的正视图。
图14为图12所示电芯的侧视图。
图15为图1所示电池组件中,电芯组件和第一构件在另一方向上的结构示意图。
图16为图15所示结构的局部结构放大图。
图17为图15所示结构的侧视图。
图18为图17所示结构的局部放大图。
图19为图1所示电池组件的俯视图。
图20为图19所示电池组件的剖面结构示意图。
图21为图20所示电池组件的局部结构放大图。
图22为图1所示电池组件移除部分顶部结构后的结构示意图。
图23为图22所示结构的俯视图。
图24为图1所示电池组件移除外壳后的结构示意图。
图25为图24所示结构的局部结构放大图。
图26为图1所示电池组件的俯视图。
图27为图23所示电池组件的剖面结构示意图。
图28为图27所示结构的局部结构放大图。
图29为图1所示电池组件在第二方向上切除部分第二壳的第二侧壁后的剖视图。
图1’为电池组件在一实施例中的分解结构示意图。
图2’为图1’所示电池组件移除线束组件后的侧视图。
图3’为图2’所示电池组件的剖面结构示意图,虚线圆框中的结构为剖面结构的局部放大图。
图4’为图1’所示电池组件的外壳中,第一壳的结构示意图。
图5’为图4’所示第一壳在另一方向的结构示意图,虚线圆框中的结构为第一壳的局部放大图。
图6’为图1’所示电池组件的外壳中,第二壳的结构示意图。
图7’为图6’所示第二壳在另一方向的结构示意图,虚线圆框中的结构为第二壳的局部放大图。
图8’为图1’所示电池组件移除部分结构后的结构示意图,虚线圆框中的结构为局部放大图。
图9’为图1’所示电池组件移除除线束组件后的侧视图。
图10’为图9’所示电池组件的剖面结构示意图,虚线圆框中的结构为剖面结构的局部放大图。
图11’为图9’所示电池组件在另一方向的剖面结构示意图,虚线圆框中的结构为剖面结构的局部放大图。
图12’为图1’所示电池组件中电芯的结构示意图。
图13’为第一壳和第二壳连接之前的结构示意图,其中第一壳和第二壳去除了顶部部分结构。
图14’为第一壳和第二壳连接后的剖面结构示意图。
图30为用电设备在一实施例中的结构简图。
主要元件符号说明:
电池组件 100,100’
外壳 10,10’
第一壳 11,11’
第一侧壁 111,111’
第一侧壁凹部 112,112’
第一侧壁凸部 113,113’
第一顶壁 114
第一底壁 115
第一端壁 116
第一开口 1161
第一支撑部 114’
第二倾斜面 1141’
第二端壁 117
第二壳 12,12’
第二侧壁 121,121’
第二侧壁凹部 122,122’
第二侧壁凸部 123,123’
第二顶壁 124
第二底壁 125
第三端壁 126
第二开口 1261
第四端壁 127
第一凸部 13
第二凸部 14
电芯组件 20,20’
电芯 21,21’
壳体 211,211’
第一部分 2111,2111’
第二部分 2112,2112’
第一壳体 211a
第二壳体 211b
第一区域 211c
第二区域 211d
弯折部 2113,2113’
第一凹部 2114,2114’
第二凹部 2115,2115’
电极组件 212
电极端子 213a,213b
连接部 2131’
绝缘件 22,22’
第一构件 30,30’
第一结构件 31,31’
第一区块 311
表面 3111
第二区块 312
第一凸伸部 3121
第一区块凸部 313,321’
第一区段 3131,3211’
第二区段 3132,3212’
斜面 3133
第二区块凹部 314,311’
第一分部 312’
第二分部 313’
第四凹部 314’
第一连接部 315
第一连接凹部 3151
第一凸出部 3152
第一台阶面 3153
第四连接凹部 316
第一端部 317
第一倾斜面 3171
第二端部 318
第二结构件 32,32’
第三区块 321
第四区块 322
第二凸伸部 3221
第四区块凹部 323
第三区块凸部 324
第二连接部 325
第二连接凹部 3251
第二凸出部 3252
第二台阶面 3253
第六连接凹部 326
第三端部 327
第三凹部 3271
第四端部 328
第三分部 322’
第四分部 323’
电路板 40,40’
连接件 41,41’
第一段 411’
第二段 412’
第三段 413’
芯片 42
线束组件 50
第一端 51
第二端 52
连接器 53
用电设备 200
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清楚、完整地描述,显然,所描述的实施例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,当元件被称为“固定于”另一个元件,它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件,它可以是直接连接到另一个元件或者可能同时存在居中元件。当一个元件被认为是“设置于”另一个元件,它可以是直接设置在另一个元件上或者可能同时存在居中元件。本文所使用的 术语“垂直的”、“水平的”、“左”、“右”、“顶”、“底”以及类似的表述只是为了说明的目的,并不用于限制本申请。
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方式的目的,不是旨在于限制本申请。本文所使用的术语“或/及”包括一个或多个相关的所列项目的任意的和所有的组合。
本申请实施例提供了一种电池组件,包括外壳、电芯组件和第一构件。所述电芯组件设于所述外壳内,所述电芯组件包括多个沿第一方向堆叠设置的电芯,所述电芯包括壳体、电极组件和电极端子,所述壳体包括用于收容所述电极组件的第一部分和自所述第一部分周边延伸形成的第二部分,所述电极端子连接于所述电极组件并自所述第二部分延伸出所述第一部分。所述第一构件包括绝缘材料,沿所述第一方向,所述第一构件设于相邻所述电芯的所述第二部分之间,所述第一构件的邵氏硬度大于等于70度。
上述电池组件通过在相邻电芯的第二部分之间设置邵氏硬度大于等于70度的第一构件,使第一构件抵压电芯的壳体的第一部分,当电池组件受到冲击时,电芯受到的力能通过第一构件传递到外壳上,提升对电芯壳体的保护。
本申请的一些实施方式作详细说明。在不冲突的情况下,下述的实施方式及实施方式中的特征可以相互组合。
请参阅图1和、图2、图3和图11,在本申请的一实施例中,电池组件100包括外壳10、电芯组件20和第一构件30。所述电芯组件20设于所述外壳10内,所述电芯组件20包括多个沿第一方向A堆叠设置的电芯21。所述电芯21包括壳体211、电极组件212和电极端子213,所述壳体211包括用于收容所述电极组件212的第一部分2111和自所述第一部分2111周边延伸形成的第二部分2112。所述电极组件212包括由正极片、负极片以及隔离膜卷绕形成的卷绕式结构。可选的,所述壳体211包括铝塑膜,所述电芯21包括软包电芯。沿所述第一方向A,所述电芯21包括设于所述第二部分2112的相对两侧的第一凹部2114和第二凹部2115。第一凹部2114和第二凹部2115由第一部分2111和第二部分2112形成。两个所述电极端子213a、213b连接于所述电极组件212并自所述第二部分2112延伸出所述第一部分2111。两个所述电极端子213a、213b的极性相反,其中,电极端子213a可为正极,电极端子213b可为负极。所述第一构件30包括绝缘材料。可选的,所述第一构件30包括泡棉,比如EVA泡棉,其乙酸乙烯含量在5%~45%。可选的,所述第一构件30由绝缘材料制成。可选的,所述第一构件30由绝缘材料和金属材料制成。沿所述第一方向A,所述第一构件30设于相邻所述电芯21的所述第二部分2112之间,所述第一构件30的邵氏硬度C大于等于70度,当电池组件100受到冲击、振动或撞击时,电芯21受到的力可通过第一构件30传递到外壳10上,减少第一凹部2114和第二凹部2115处的壳体211受到的冲击力,提升对壳体211的保护。请参阅图2和图4,所述第一构件30包括第一结构件31和第二结构件32,所述第一结构件31和所述第二结构件32连接。可选的,所述第一结构件31和所述第二结构件32可拆卸地连接。在组装电池组件100时,沿垂直于所述第一方向A的第二方向B,第一结构件31和第二结构件32插入相邻电芯21的第二部分2112之间,利用第一结构件31和第二结构件32拼接形成第一构件30,可以减少第一构件30的每个部分与电芯组件20在第二方向B的摩擦距离,从而减少摩擦阻力,降低第一构件30在电池组件100中的安装难度,提高生产效率。所述电芯组件20还包括多个绝缘件22,任意相邻所述电芯21之间设有一所述绝缘件22。在本申请的实施例中,所述绝缘件22包括但不限于泡棉等可压缩材料。所述绝缘件22可用于吸收所述电芯21在充放电过程中的膨胀体积。
请参阅图4、图5、图6和图7,所述第一结构件31和所述第二结构件32沿第二方向B对插连接,所述第二方向B与所述第一方向A垂直,第二方向B可为电芯21的宽度方向。所述第一结构件31包括多个第一区块311和多个第二区块312,沿所述第一方向A,所述第一区块311和所述第二区块312交替设置。所述第二结构件 32包括多个第三区块321和多个第四区块322,沿所述第一方向A,所述第四区块322与所述第三区块321交替设置。所述第一结构件31和所述第二结构件32连接形成第一构件30,所述第三区块321与所述第二区块312可拆卸地连接,所述第四区块322与所述第一区块311可拆卸地连接。
请继续参阅图6、图7、图8、图9、图10和图11,每个所述第一区块311朝向所述第二结构件32的一端设有第一区块凸部313,每个所述第四区块322朝向所述第一结构件31的一端设有对应所述第一区块凸部313的第四区块凹部323。每个所述第三区块321朝向所述第一结构件31的一端设有第三区块凸部324,每个所述第二区块312朝向所述第二结构件32的一端设有对应所述第三区块凸部324的第二区块凹部314。所述第一结构件31和所述第二结构件32连接形成第一构件30时,所述第一区块凸部313插接于所述第四区块凹部323。所述第三区块凸部324插接于所述第二区块凹部314。第一区块凸部313与第四区块凹部323之间相互配合,第三区块凸部324与第二区块凹部314之间相互配合,有利于提升第一结构件31和第二结构件32之间的连接可靠性。
进一步地,请再次参阅图6至图11,所述第一区块凸部313包括连接为一体的第一区段3131和第二区段3132。所述第二区段3132的外表面设有斜面3133,沿垂直于所述第一方向A的第二方向B,所述第二区段3132的截面面积逐渐减小。当第一区块凸部313与第四区块凹部323插接时,第二区段3132可用于导向第一区块凸部313移动方向,降低第一区块凸部313与第四区块凹部323配对的难度,有利于第一区块凸部313插入第四区块凹部323。第三区块凸部324的结构与第一区块凸部313的结构相似,是截面尺寸不同的两段式结构,此处不再赘述第三区块凸部324的结构。
沿所述第一方向A,所述第一结构件31的相对两端分别设有第一端部317和第二端部318,所述第二结构件32的相对两端分别设有第三端部327和第四端部328。所述第一结构件31与所述第二结构件32对插连接时,所述第一端部317连接所述第三端部327,所述第二端部318连接所述第四端部328。本申请的实施例通过第一结构件31和第二结构件32的两端相互配合,能够进一步提升第一结构件31和第二结构件32之间的连接强度。
沿所述第二方向B,所述第一端部317的长度大于所述第三端部327的长度,所述第三端部327朝向所述第一端部317的一端设有第三凹部3271,所述第一端部317朝向所述第三端部327的一端插接于所述第三凹部3271。所述第一端部317的内侧面还设有第一倾斜面3171,可用于导向所述第一端部317插入第三凹部3271的移动方向,降低第一端部317与第三端部327之间的配对难度。所述第四端部328的结构与所述第一端部317的结构相同,所述第二端部318与所述第三端部327的结构相同,所述第一结构件31与所述第二结构件32连接时,所述第二端部318与所述第四端部328对插连接。
请再次参阅图4、图5、图10和图11,相邻两个所述电芯21的所述电极端子213于所述第一结构件31的第一区块311背离所述电芯组件20的表面3111相互连接,或相邻两个所述电芯21的所述电极端子213于所述第二结构件32的第三区块321背离所述电芯组件20的一侧相互连接。沿第三方向C,所述第二区块312的厚度D2大于所述第一区块311的厚度D1,所述第四区块322的厚度D4大于所述第三区块321的厚度D3,所述第三方向C同时垂直于所述第一方向A和所述第二方向B。沿所述第三方向C,所述电极端子213可不超出第二区块312和第四区块322,可减小电池组件100的外形尺寸,提升能量密度。
沿所述第一方向A,所述第一结构件31包括多个第一凸伸部3121,所述第一凸伸部3121设于所述第一区块311的相对两侧,所述第一凸伸部3121位于第一区块311背离所述第二结构件32的一端,且第一凸伸部3121凸出于所述第一区块311的上表面设置。所述第一区块311、两个第一凸伸部3121的形成第一空间,可以用于收容连接电极端子213的连接件41,所述连接件41包括但不限于导电片等结构,可以由金属材料制成。所述第二结构件32包括多个第二凸伸部3221,所述第二凸伸部 3221设于所述第三区块321的相对两侧,所述第二凸伸部3221位于所述第三区块321背离所述第一结构件31的一端,且第二凸伸部3221凸出于所述第三区块321的上表面设置。第三区块321两个第二凸伸部3221形成第二空间,用于收容连接电极端子213的连接件41。所述第一凸伸部3121和所述第二凸伸部3221的一端连接所述第二区块312或第四区块322,另一端抵持相互连接的电极端子213,以实现电极端子213与第一构件30之间的定位。
请参阅图3、图12、图13和图14,所述电芯21的壳体211包括第一壳体211a和第二壳体211b,所述第一壳体211a连接所述第二壳体211b,且所述第一壳体211a和所述第二壳体211b沿连接位置可以进行折叠,沿所述第一方向A,使所述第一壳体211a和所述第二壳体211b重合,形成所述壳体211的所述第一部分2111,以包覆所述电极组件212。所述第一壳体211a周侧向外延伸形成第一区域211c,所述第二壳体211b周侧向外延伸形成第二区域211d。所述第一壳体211a和所述第二壳体211b沿连接位置进行折叠后,所述第一区域211c与所述第二区域211d重合并密封连接,形成所述壳体211的所述第二部分2112。所述电极端子213自所述第二部分2112相对所述连接位置的一侧伸出所述壳体211。
沿所述第二方向B,所述第二部分2112的相对两侧还分别设有弯折部2113,所述弯折部2113设于所述第一凹部2114,有利于减少第二部分2112凸伸出电芯21表面的情况,降低所述弯折部2113损坏的风险。所述电芯组件20中,相邻电芯21之间,一电芯21的第一凹部2114与另一电芯21的第一凹部2114相对设置,或一电芯21的第一凹部2114与另一电芯21的第二凹部2115相对设置。在本申请的实施例中,所述弯折部2113可以是在所述第一结构件31和所述第二结构件32对插连接时,通过所述第一结构件31和所述第二结构件32对电芯21两侧边的第二部分2112挤压形成。所述第一结构件31和所述第二结构件32安装完成后,可实现对弯折部2113的抵持、限位作用。在其他实施例中,可在所述第一结构件31和所述第二结构件32在安装前,通过机械按压的方式形成所述弯折部2113,以减少所述第一结构件31和所述第二结构件32在安装过程中的阻力,提升电池组件100的生产效率。可选的,所述第一结构件31和所述第二结构件32连接于所述弯折部2113,以限制所述弯折部2113的移动。可选的,沿第三方向C,所述弯折部2113投影与所述第一结构件31的投影至少部分重叠,以限制所述弯折部2113的移动。可选的,沿第三方向C,所述弯折部2113投影与所述第二结构件32的投影至少部分重叠,以限制所述弯折部2113的移动。
请参阅图4、图5、图12、图13、图14、图15、图16、图17和图18,第一结构件31中,相邻所述第一区块311与所述第二区块312之间设有第一连接部315,所述第一连接部315包括设于靠近所述电芯组件20一侧的第一连接凹部3151。相邻所述第三区块321和所述第四区块322之间设有第二连接部325,所述第二连接部325包括设于靠近所述电芯组件20一侧的第二连接凹部3251。沿第二方向B,所述电芯21的第二部分2112的相对两端分别设于所述第一连接凹部3151和所述第二连接凹部3251,使第一构件30能够适配电芯组件20的外形结构,减少第一构件30与电芯组件20之间的相对移动。
进一步地,所述第一连接凹部3151的一侧还设有第一凸出部3152,所述第二连接凹部3251的一侧还设有第二凸出部3252。所述第一结构件31和所述第二结构件32安装至电芯组件20上时,所述第一凸出部3152和所述第二凸出部3252抵持所述电芯21的第二部分2112相对两端的弯折部2113,以减少电芯21中第二部分2112的晃动,以降低电芯21的壳体211损坏的风险。
沿所述第三方向C,所述第一连接部315背离所述电芯组件20的一侧设有第一台阶面3153,所述第二连接部325背离所述电芯组件20的一侧设有第二台阶面3253。所述外壳10的相对两侧内部还设有第一凸部13,所述第一凸部13连接所述第一构件30。具体地所述第一凸部13抵持连接于所述第一台阶面3153和所述第二台阶面3253,一方面有利于将电芯21受到的力通过第一构件30传递至外壳10,另一方面 可以限位第一构件30与外壳10,减少第一构件30发生位移的问题。
请参阅图2、图22和图23,沿所述第二方向B,所述外壳10包括相互连接的第一壳11和第二壳12,所述第一壳11包括第一侧壁111,所述第二壳12包括第二侧壁121,所述第一侧壁111与所述第二侧壁121沿所述第二方向B相对设置。所述第一侧壁111朝向所述电芯组件20的一侧设有多个第一侧壁凹部112,多个所述电芯21的侧边设于多个所述第一侧壁凹部112。相邻所述第一侧壁凹部112之间设有第一侧壁凸部113,第一侧壁凹部112和第一侧壁凸部113组合形成仿形槽,用于定位电芯组件20中的多个电芯21,减少电芯组件20在外壳10中的晃动。所述第一结构件31朝向所述第一侧壁111的一侧设有多个第四连接凹部316,所述第一侧壁凸部113设于所述第四连接凹部316,第四连接凹部316限制第一结构件31的移动。所述第二侧壁121朝向所述电芯组件20的一侧也设有多个第二侧壁凹部122,所述第二侧壁凹部122与所述第一侧壁凹部112的位置对应,多个所述电芯21背离第一侧壁111的一侧设于多个所述第二侧壁凹部122。相邻所述第二侧壁凹部122之间设有第二侧壁凸部123,第二侧壁凹部122和第二侧壁凸部123,在第二侧壁121上形成仿形槽,与第一侧壁111上的仿形槽共同作用,夹持定位所述电芯组件20,进一步提升电芯组件20在外壳10内的稳定性。所述第二结构件32朝向所述第二侧壁121的一侧还设有多个第六连接凹部326,所述第二侧壁凸部123设于所述第六连接凹部326内,所述第六连接凹部326可限制第二结构件32的移动。
请参阅图2、图19至图21、和图22至图29,所述电池组件100还包括电路板40,所述电芯组件20电连接所述电路板40,所述电路板40上设有包括若干电子线路元件的芯片42,用于控制电芯组件20的充放电电流、监测电芯组件20的充放电温度。所述电路板40设置于所述第一结构件31和所述第二结构件32件背离所述电芯组件20的一侧。所述电路板40电连接所述电芯组件20的电极端子213。所述外壳10包括第一凸部13,所述第一凸部13设于所述电路板40靠近所述电芯组件20的一侧。所述外壳10还包括第二凸部14,所述第二凸部14设于所述电路板40背离所述电芯组件20的一侧。所述电路板40可以用于检测和控制电芯组件20的充电和放电情况,通过所述第一凸部13与所述电路板40相互配合,可以将电路板40作为另一个力传递结构,有利于将电芯组件20受到的力传递至外壳10。
所述第一壳11还包括围绕所述第一侧壁111设置的第一顶壁114、第一底壁115、第一端壁116和第二端壁117。所述第二壳12还包括围绕所述第二侧壁121设置的第二顶壁124、第二底壁125、第三端壁126和第四端壁127。沿所述第二方向B,所述第一顶壁114所述第二顶壁124相对设置且可拆卸连接,所述第一底壁115与所述第二底壁125相对设置且可拆卸连接,所述第一端壁116与所述第三端壁126相对设置且可拆卸连接,所述第二端壁117与所述第四端壁127相对设置且可拆卸连接。所述第一凸部13和所述第二凸部14沿第三方向C间隔设置于所述第一侧壁111,所述第一凸部13和所述第二凸部14沿第三方向C间隔设置于所述第二侧壁121。所述第一侧壁111和所述第二侧壁121的外表面还设有多个凹槽,用于在电池组件100的外壳10表面形成散热结构,增大外壳10的散热面积,提升电池组件100的散热性能。
所述电路板40上还连接有多个连接件41,多个所述连接件41连接于所述电芯组件20与所述电路板40之间。具体地,相邻电芯21的电极端子213的连接处均连接一所述连接件41。请再次参阅图4和图5,每一所述连接件41设于所述第一区块311或所述第三区块321的上表面,且每一所述连接件41至少部分设置于相邻所述第一区块311之间,或设置于相邻所述第三区块321之间,从而减少连接件41占用的额外空间,提升电池组件100的能量密度。
所述电池组件100还包括线束组件50,所述线束组件50的第一端51连接所述电路板40,所述线束组件50的第二端52伸出所述外壳10。具体地,所述外壳10的第一端壁116和第三端壁126上分别设有第一开口1161和第二开口1261,所述第一壳11与所述第二壳12组装时,所述第一开口1161和所述第二开口1261连通,所 述线束组件50的第二端52从所述第一开口1161和所述第二开口1261伸出所述外壳10。所述线束组件50的第二端52还设有连接器53,所述连接器53用于连接外部设备,以实现对电池组件100的充电或放电过程。
请参阅图1’和图12’,在本申请的另一实施方式中,本实施方式的电池组与前述实施电池组件100相似,本实施例中将省略部分与前述实施方式的电池组件100相同或相似的构造的重复描述,本实施重点描述前述实施方式不同之处。与电池组件100相同的部分使用相同的数字编号,并省略详细说明,为进一步区分,相同的数字编号在本实施例中增加了区分符号’。所述第一构件30’连接所述外壳10’,所述第一构件的邵氏硬度C大于等于70度。沿所述第一方向A,所述第一构件30’设于相邻所述电芯21’的所述第二部分2112’之间。当电池组件100’受到冲击时,电芯21’受到的力能通过第一构件30’传递到外壳10’上,将对电芯21’的壳体211’产生冲击的力转移到外壳10’上,减少电芯21’壳体211’顶部的薄弱区域受到的冲击力,提升对壳体211’的保护。
请继续参阅图2’图3’、图13’和图14’,所述第一结构件31’远离所述第二结构件32’的一端连接所述第一壳11’,所述第二结构件32’远离所述第一结构件31’的一端连接所述第二壳12’。通过将第一结构件31’和第二结构件32’分别与第一壳11’和第二壳12’连接,在第一壳11’和第二壳12’组装形成外壳10’时即可实现第一结构件31’和第二结构件32’的组装。请再次参阅图1’,所述电芯组件20’还包括多个绝缘件22’,任意相邻所述电芯21’之间设有一所述绝缘件22’。在本申请的实施例中,所述绝缘件22’包括但不限于泡棉等可压缩材料。所述绝缘件22’可用于吸收所述电芯21’在充放电过程中的膨胀体积。
请继续参阅图4’、图5’、图6’和图7’,所述第一结构件31’朝向所述第二结构件32’的一端设有第二区块凹部311’,所述第二结构件32’朝向所述第一结构件31’的一端设有第一区块凸部321’,所述第一结构件31’与所述第二结构件32组装成第一构件30’时,所述第一区块凸部321’设于所述第二区块凹部311’内。所述第一区块凸部321’与第二区块凹部311’之间相互配合,有利于提升第一结构件31’和第二结构件32’之间的连接可靠性,减少第一结构件31’与第二结构件32’脱离的问题,维持第一构件30’的稳定性。
请再次参阅图6’,所述第一区块凸部321’包括第一区段3211’和第二区段3212’。所述第二区段3212’上设有斜面,沿所述第一区块凸部321’的延伸方向,即第二方向B,所述第一区块凸部321’上第二区段3212’的截面面积逐渐减小,有利于导向第一区块凸部321’的移动方向,利于第一区块凸部321’插入第二区块凹部311’。在本申请的其中一实施例中,所述第一结构件31’与所述第二结构件32’连接时,所述第一区段3211’与所述第二区块凹部311’过盈配合,以提高第一结构件31’与第二结构件32’之间的连接牢固性。
在本申请的实施例中,沿所述第一方向A,多个所述第一结构件31’间隔设于相邻所述电芯21’的所述第二部分2112’之间,且每一所述第一结构件31’设于相邻电芯21’的第一凹部2114’之间。所述第二结构件32’的数量与所述第一结构件31’一一对应。第一结构件31’和第二结构件32’组装形成第一构件30’时,所述第一构件30’朝向所述电芯组件20’的一侧抵压所述弯折部2113’,减少电芯21’的晃动。
在其他实施例中,多个所述第一结构件31’还可以设于任性相邻所述电芯21’的第二部分2112’之间,从而使电芯21’的第一凹部2114’和第二凹部2115’内均设有第一构件30’,从而增加第一构件30’对电芯21’的第一部分2111’顶部的抵压力,有效传递电芯21’受到的力,进一步保护壳体211’。
请再次参阅图4’至图7’,所述第一壳11’包括第一侧壁111’,所述第一侧壁111’设有多个第一侧壁凹部112’,所述电芯21’朝向所述第一壳11的一侧设于所述第一侧壁凹部112’,相邻所述第一侧壁凹部112’之间设有第一侧壁凸部113’,所述第一结构件31’连接所述第一侧壁凸部113’。所述第一结构件31’还包括第一分部312’和第二分部313’,所述第一分部312’连接于相邻所述第一侧壁凹部112’的一个,所述第二分 部313’连接于相邻所述第一侧壁凹部112’的另一个,从而增大第一结构件31’与第一壳11’的连接面积,以提升第一结构件31’与第一壳11’的连接强度。沿与第二方向B相反的方向,所述第一分部312’在第一侧壁111’的投影在第一方向A上的长度不超过第一侧壁凹部112’在第一方向A上的长度,第二分部313’在第一侧壁111’的投影在第一方向A上的长度不超过第一侧壁凹部112’在第一方向A上的长度,第一结构件31’朝向第一壳11’的一端没有连接到第一侧壁凹部112’的最底部,更方便组装电池组件100’。
所述第二壳12’包括第二侧壁121’,所述第二侧壁121’设有多个第二侧壁凹部122’,所述电芯21’朝向所述第二壳12’的一侧设于所述第二侧壁凹部122’。相邻所述第二侧壁凹部122’之间设有第二侧壁凸部123’,所述第二结构件32’连接所述第二侧壁凸部123’。所述第二结构件32’还包括第三分部322’和第四分部323’,所述第三分部322’连接于相邻所述第二侧壁凹部122’的一个,所述第四分部323’连接于相邻所述第二侧壁凹部122’的另一个,从而增大第二结构件32’与第二壳12’的连接面积,提升第二结构件32’与第二壳12’的连接强度。沿第二方向B,所述第三分部322’在第二侧壁121’的投影在第一方向A上的长度不超过第二侧壁凹部122’在第一方向A上的长度,第四分部323’在第二侧壁121’的投影在第一方向A上的长度不超过第二侧壁凹部122’在第一方向A上的长度,第二结构件32’朝向第二壳12’的一端没有连接到第二侧壁凹部122’的最底部,更方便组装电池组件100’。
在本申请的其中一实施例中,所述第一壳11’和所述第一结构件31’为一体成型结构,所述第二壳12’与所述第二结构件32’也可以为一体成型结构。一体成型的方式包括但不限于注塑成型,能够使第一结构件31’和第二结构件32’更好的传递电芯21’受到的力,同时也有利于减少电池组件100’装配步骤,提高生产效率。其他实施例,所述第一结构件31’可通过其他方式和所述第一壳11’连接,比如卡扣固定、螺丝固定、粘胶固定等。所述第二结构件32’可通过其他方式和所述第二壳12’连接,比如卡扣固定、螺丝固定、粘胶固定等。
请参阅图1’和图8’,所述电池组件100’进一步包括电路板40’和连接件41’。所述连接件41’设于所述第一结构件31’背离所述电芯21’的一侧,相邻两个所述电芯21’的所述电极端子213’连接于所述连接件41’。连接件41’设于第一结构件31’背离所述电芯21’的一侧,电极端子213’也连接于第一结构件31’上的连接件41’,实现电芯组件20’与第一构件30’之间的定位连接,减少第一构件30’与电芯组件20’之间的相对位移。沿所述第一方向A,所述连接件41’还设于相邻所述第二结构件32’之间,以使电芯组件20’中,电芯21’的正负极电极端子213’均能连接相应的连接件41’,维持电芯组件20’的电路完整。多个所述连接件41’还电连接所述电路板40’,以实现电芯组件20’与电路板40’之间的电连接。请参阅图4’和图8’,所述第一结构件31’背离所述电芯21’的一侧设第四凹部314’,所述连接件41’设于所述第四凹部314’内,有利于连接件41’在第一结构件31’上的定位,减少连接件41’的晃动。所述第一侧壁111’包括第一支撑部114’,所述电路板40’于所述第一支撑部114’,所述第一结构件31’连接于所述第一支撑部114’,沿第三方向C,所述第一结构件31’和所述电路板40’位于所述第一支撑部114’相对的两侧。所述连接件41’包括第一段411’和第二段412’,所述第一段411’设于所述第四凹部314’,所述第一支撑部114’设于所述第二段412’和所述第一侧壁凹部112’之间。一方面所述第一支撑部114’可以辅助定位所述连接件41’,另一方面所述第一支撑部114’也可以支撑连接件41’与电路板40’的连接处。
进一步地,所述连接件41’还包括连接所述第一段411’和所述第二段412’的第三段413’,所述第三段413’相对所述第一段411’倾斜设置。所述第一支撑部114’包括第二倾斜面1141’,所述第二倾斜面1141’连接于所述第一结构件31’,方便进行电池组件100’的组装。
请参阅图9’、图10’和图11’,所述电极端子213’包括连接部2131’,所述连接部2131’与所述连接件41’连接。沿第三方向C,所述第一区块凸部321’至少部分设于所述连接部2131’和所述电芯21’的所述第一部分2111’之间,以提升第一结构件31’和 第二结构件32’的连接强度,让第一构件30’更好地压住电芯21’的壳体211’,提升壳体211’的抗冲击能力。在本申请的其中一实施例中,沿所述第二方向B,所述第一区块凸部321’设于所述连接部2131’和所述第一部分2111’之间的部分的长度大于所述连接部2131’长度的1/2,通过进一步限定第一区块凸部321’插入第二区块凹部311’的尺寸关系,让第一构件30’能够有效抵持电芯21’的壳体211’。
请参阅图30,本申请的实施例还提供一种用电设备200,所述用电设备200包括上述实施例所述的电池组件100或电池组件100’。在本申请的实施例中,所述用电设备200包括但不限于电动车、储能设备、无人机、电动工具等。
以上实施方式仅用以说明本申请的技术方案而非限制,尽管参照以上较佳实施方式对本申请进行了详细说明,本领域的普通技术人员应当理解,可以对本申请的技术方案进行修改或等同替换都不应脱离本申请技术方案的精神和范围。
Claims (18)
- 一种电池组件,包括:外壳;电芯组件,设于所述外壳内,所述电芯组件包括多个沿第一方向堆叠设置的电芯,所述电芯包括壳体、电极组件和电极端子,所述壳体包括用于收容所述电极组件的第一部分和自所述第一部分周边延伸形成的第二部分;其特征在于,所述电池组件还包括第一构件,所述第一构件包括绝缘材料,沿所述第一方向,所述第一构件设于相邻所述电芯的所述第二部分之间。
- 如权利要求1所述的电池组件,其特征在于,所述第一构件包括第一结构件和第二结构件,所述第一结构件和所述第二结构件可拆卸地连接。
- 如权利要求2所述的电池组件,其特征在于,所述第一结构件和所述第二结构件沿第二方向对插连接,所述第二方向与所述第一方向垂直。
- 如权利要求2所述的电池组件,其特征在于,所述第一结构件包括多个第一区块和多个第二区块,沿所述第一方向,所述第一区块和所述第二区块交替设置;所述第二结构件包括多个第三区块和多个第四区块,沿所述第一方向,所述第三区块与所述第四区块交替设置;所述第三区块与所述第二区块可拆卸地连接,所述第四区块与所述第一区块可拆卸地连接。
- 如权利要求4所述的电池组件,其特征在于,每个所述第一区块朝向所述第二结构件的一端设有第一区块凸部,每个所述第四区块朝向所述第一结构件的一端设有第二区块凹部,所述第一区块凸部插接于所述第二区块凹部。
- 如权利要求5所述的电池组件,其特征在于,所述第一区块凸部包括第一区段和第二区段,所述第一区段连接于所述第一区块与所述第二区段之间,所述第二区段的外表面设有斜面,从所述第一区块凸部至所述第二结构件的方向,所述第二区段的截面面积逐渐减小。
- 如权利要求4所述的电池组件,其特征在于,所述第三区块朝向所述第一结构件的一端设有第三区块凸部,所述第二区块朝向所述第二结构件的一端设有第二区块凹部,所述第三区块凸部插接于所述第二区块凹部。
- 如权利要求4所述的电池组件,其特征在于,所述电极端子连接于所述电极组件并自所述第二部分延伸出所述第一部分,相邻两个所述电芯的所述电极端子连接于所述第一区块或所述第三区块背离所述电芯组件的一侧。
- 如权利要求8所述的电池组件,其特征在于,沿第三方向,所述第二区块的厚度大于所述第一区块的厚度,所述第四区块的厚度大于所述第三区块的厚度,所述电极端子的厚度小于等于所述第一区块的上表面与所述第二区块的上表面之间的距离。
- 如权利要求4所述的电池组件,其特征在于,相邻所述第一区块与所述第二区块之间设有第一连接部,所述第一连接部朝向所述电芯组件的一侧设有第一连接凹部,相邻所述第三区块和所述第四区块之间设有第二连接部,所述第二连接部朝向所述电芯组件的一侧设有第二连接凹部,沿第二方向,所述第二部分的相对两端分别设于所述第一连接凹部和所述第二连接凹部。
- 如权利要求10所述的电池组件,其特征在于,所述第一连接凹部的一侧设有第一凸出部,所述第二连接凹部的一侧设有第二凸出部,所述第二部分的相对两侧还分别设有弯折部,所述第一凸出部和所述第二凸出部抵持所述弯折部。
- 如权利要求10所述的电池组件,其特征在于,沿所述第二方向,所述第一连接部背离所述电芯组件的一侧设有第一台阶面,所述第二连接部背离所述电芯组件的一侧设有第二台阶面,所述外壳的相对两侧内部还设有第一凸部,所述第一凸部抵持所述第一台阶面和所述第二台阶面。
- 如权利要求11所述的电池组件,其特征在于,沿所述第一方向,所述第二 部分的相对两侧分别设有第一凹部和第二凹部,所述第一凹部的深度大于所述第二凹部的深度,所述弯折部设于所述第一凹部。
- 如权利要求2所述的电池组件,其特征在于,沿第二方向,所述外壳包括相对设置的第一侧壁和第二侧壁,所述第一侧壁朝向所述电芯组件的一侧设有多个第一侧壁凹部,多个所述电芯的侧边设于多个所述第一侧壁凹部,相邻所述第一侧壁凹部之间设有第一侧壁凸部,所述第一结构件朝向所述第一侧壁的一侧设有第四连接凹部,所述第一侧壁凸部设于所述第四连接凹部。
- 如权利要求2所述的电池组件,其特征在于,所述电池组件还包括电路板,所述电路板设置于所述第一结构件和所述第二结构件背离所述电芯组件的一侧,所述电路板电连接所述电芯组件的电极端子,所述外壳包括第二凸部,所述第二凸部设于所述电路板背离所述电芯组件的一侧。
- 如权利要求2所述的电池组件,其特征在于,沿所述第一方向,所述第一结构件的相对两端分别设有第一端部和第二端部,所述第二结构件的相对两端分别设有第三端部和第四端部,所述第一端部连接所述第三端部,所述第二端部连接所述第四端部。
- 如权利要求1-16任一项所述的电池组件,其特征在于,所述第一构件的邵氏硬度C大于等于70度。
- 一种用电设备,其特征在于,所述用电设备包括权利要求1-17任一项所述的电池组件。
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CN210129547U (zh) * | 2019-06-17 | 2020-03-06 | 东莞新能源科技有限公司 | 电池组件及电化学装置 |
CN210349920U (zh) * | 2019-08-29 | 2020-04-17 | 多氟多新能源科技有限公司 | 一种软包锂电池模组结构 |
CN112259865A (zh) * | 2020-10-28 | 2021-01-22 | 荣盛盟固利新能源科技有限公司 | 电池模组 |
CN112886106A (zh) * | 2021-03-17 | 2021-06-01 | 东莞新能安科技有限公司 | 电化学装置、电池包及用电装置 |
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CN210129547U (zh) * | 2019-06-17 | 2020-03-06 | 东莞新能源科技有限公司 | 电池组件及电化学装置 |
CN210349920U (zh) * | 2019-08-29 | 2020-04-17 | 多氟多新能源科技有限公司 | 一种软包锂电池模组结构 |
CN112259865A (zh) * | 2020-10-28 | 2021-01-22 | 荣盛盟固利新能源科技有限公司 | 电池模组 |
CN112886106A (zh) * | 2021-03-17 | 2021-06-01 | 东莞新能安科技有限公司 | 电化学装置、电池包及用电装置 |
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