WO2022160291A1 - 电池组、用电设备和制造方法 - Google Patents

电池组、用电设备和制造方法 Download PDF

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Publication number
WO2022160291A1
WO2022160291A1 PCT/CN2021/074502 CN2021074502W WO2022160291A1 WO 2022160291 A1 WO2022160291 A1 WO 2022160291A1 CN 2021074502 W CN2021074502 W CN 2021074502W WO 2022160291 A1 WO2022160291 A1 WO 2022160291A1
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WO
WIPO (PCT)
Prior art keywords
structural member
casing
battery pack
groove
wire harness
Prior art date
Application number
PCT/CN2021/074502
Other languages
English (en)
French (fr)
Inventor
喻律师
夏君
吴明杰
Original Assignee
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 东莞新能安科技有限公司 filed Critical 东莞新能安科技有限公司
Priority to PCT/CN2021/074502 priority Critical patent/WO2022160291A1/zh
Priority to CN202180092378.7A priority patent/CN116762223A/zh
Publication of WO2022160291A1 publication Critical patent/WO2022160291A1/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
    • H01M50/244—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
    • H01M50/284—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
    • H01M50/287—Fixing of circuit boards to lids or covers
    • 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

Definitions

  • the present application relates to the field of battery technology, in particular to a battery pack, an electrical device having the battery pack, and a manufacturing method for manufacturing the battery pack.
  • a wire harness assembly is often drawn out from the housing to realize the electrical connection between the battery pack and the electrical components or the power source.
  • the assembling and fixing structure between the wire harness assembly and the housing is relatively complicated, and fasteners such as screws are needed to assist the fixing, resulting in low production efficiency of the battery pack and increased production cost.
  • the present application provides a battery pack, an electrical device having the battery pack, and a manufacturing method for manufacturing the battery pack.
  • the second structural member is partially arranged on the outer surface of the housing, and the simple plug-in connection between the first structural member and the second structural member simplifies the connection structure between the wire harness assembly and the housing, and improves production efficiency.
  • Embodiments of the present application provide a battery pack, including a housing, a cell assembly, a circuit board, a wire harness assembly, and a fixing assembly.
  • the housing is provided with a mounting slot
  • the cell assembly is arranged in the housing
  • the circuit board is electrically connected to the cell assembly
  • the wire harness assembly includes a first end and a second end arranged opposite to each other, The first end is welded to the circuit board, the second end protrudes out of the housing, the fixing component is fixed to the wire harness component, and is at least partially disposed in the installation groove.
  • the fixing assembly includes a first structural member and a second structural member, the first structural member is fixedly connected to the wire harness assembly, and the second structural member is detachably connected to the first structural member.
  • the first structural member includes a first connecting portion and a first fixing portion, and the first fixing portion is arranged in the casing and fixed with the casing.
  • the second structural member includes a second fixing portion fixed to the housing, the second structural member is provided with a first accommodating groove, and the first connecting portion is set in the first accommodating groove.
  • the second structural member includes a second connecting portion, the second connecting portion is connected to the second fixing portion, and the second connecting portion is disposed in the mounting groove, the second connecting portion is The connecting portion is provided with the first receiving groove.
  • the installation groove is provided with a first support portion
  • the casing is far from the outer surface of the cell assembly and protrudes beyond the first support portion
  • the second fixing portion is provided on the first support portion. support.
  • the installation groove is provided with a second supporting portion, and the free end of the second connecting portion is provided on the second supporting portion.
  • the second fixing portion is provided with a positioning portion
  • the first support portion is provided with a positioning hole
  • the positioning portion is provided in the positioning hole.
  • the first fixing portion includes a first side wall, an outer side of the first side wall is provided with a buckle, and an end of the second connecting portion facing the first structural member is provided with a bayonet , the buckle is arranged on the bayonet.
  • the outer side of the first side wall is provided with a guide portion
  • the housing is provided with a first groove communicating with the installation groove
  • the guide portion is provided in the first groove
  • the buckle is provided with a first inclined surface and a first surface
  • the second connecting portion is provided with a second inclined surface and a second surface
  • the first surface and the second surface adjacently arranged the first structural member and the second structural member are fixed along a first direction
  • the first inclined surface and the opposite direction of the first direction form a first included angle
  • the first included angle is 40°-50°.
  • the second inclined surface forms a second included angle with a direction opposite to the first direction, and the second included angle is 25°-35°.
  • a positioning member is provided at one end of the first structural member away from the second structural member, and the positioning member abuts against the bottom end sidewall of the installation groove.
  • the first structural member is provided with a plurality of through holes
  • the wire harness assembly includes a wire harness
  • the wire harness is disposed in the through holes
  • the wire harness is fixed to the first structural member by adhesive.
  • a first gap is provided between the first fixing portion and the housing, and a sealing member is provided in the first gap.
  • one end of the first structural member away from the second structural member is provided with a second groove, and the plurality of through holes are located in the second groove.
  • the casing includes a first casing, a second casing and a third casing, the second casing being disposed between the first casing and the third casing,
  • the installation groove includes a first groove provided on the first casing and a second groove provided on the second casing, and the first groove and the second groove communicate with each other.
  • the housing is provided with a receiving groove, and the wire harness assembly is partially received in the receiving groove.
  • the size of the first structural member is smaller than that of the installation groove, so that the first structural member is assembled and fixed with the housing from the inside to the outside, and the size of the second structural member is larger than the installation groove, So that the second structural member is assembled and fixed with the first structural member from the outside to the inside.
  • Embodiments of the present application further provide an electrical device, including the battery pack described in the foregoing embodiments.
  • Embodiments of the present application also provide a method for manufacturing the above-mentioned battery pack, including the following steps:
  • Step 1 Fix the first structural member of the fixing assembly to the wire harness assembly
  • Step 2 Solder the first end of the wire harness assembly to the circuit board, and then connect the circuit board and the cell assembly, so that the circuit board and the wire harness assembly are co-located on the cell assembly;
  • Step 3 disposing the battery core assembly, the circuit board and the wire harness assembly in the casing, and the second end of the wire harness assembly passes through the installation groove of the casing;
  • Step 4 Insert the second structural member into the installation slot from the outside to the inside and assemble and fix with the first structural member.
  • the above-mentioned battery pack is fixedly connected with the first structural member and the wire harness assembly, the second structural member is detachably connected with the first structural member, and the second structural member is partially arranged on the outer surface of the housing, and the first structural member and the second structural member are used.
  • the simple plug-in method of the structural parts simplifies the connection structure between the wire harness assembly and the housing and improves the production efficiency.
  • FIG. 1 is a schematic structural diagram of a battery pack in an embodiment.
  • FIG. 2 is a schematic diagram of an exploded structure of the battery pack shown in FIG. 1 .
  • FIG. 3 is a schematic structural diagram of the battery pack shown in FIG. 1 after removing part of the casing.
  • FIG. 4 is a schematic structural diagram of the first structural member in the battery pack shown in FIG. 2 .
  • FIG. 5 is a schematic structural diagram of the first structural member shown in FIG. 4 in another direction.
  • FIG. 6 is a schematic structural diagram of the second structural member in the battery pack shown in FIG. 2 .
  • FIG. 7 is a schematic structural diagram of the second structural member shown in FIG. 6 in another direction.
  • FIG. 8 is a cross-sectional view of a partial structure of the battery pack shown in FIG. 1 .
  • FIG. 9 is a partial enlarged view of the structure shown in FIG. 8 .
  • FIG. 10 is a schematic cross-sectional structural diagram of the first structural member and the second structural member after connecting.
  • FIG. 11 is a bottom view of the battery pack shown in FIG. 1 with the third casing removed.
  • FIG. 12 is a partial enlarged view of the structure shown in FIG. 11 .
  • FIG. 13 is a cross-sectional view of the battery pack shown in FIG. 1 in another direction.
  • FIG. 14 is a schematic structural diagram of the second casing of the battery pack shown in FIG. 2 in one direction.
  • FIG. 15 is a schematic structural diagram of the second casing of the battery pack shown in FIG. 2 in another direction.
  • FIG. 16 is a schematic structural diagram of an electrical device in an embodiment.
  • the first structural plate 123 The first structural plate 123
  • the third containment space 130 is the third containment space 130
  • the first structural member 51 is the first structural member 51
  • the first connection part 511 is connected to The first connection part 511
  • the second structural member 52 is the first structural member 52
  • An embodiment of the present application provides a battery pack, including a casing, a cell assembly, a circuit board, a wire harness assembly, and a fixing assembly.
  • the housing is provided with a mounting slot, the cell assembly is arranged in the housing, the circuit board is electrically connected to the cell assembly, and the wire harness assembly includes a first end and a second end arranged opposite to each other, The first end is welded to the circuit board, the second end protrudes out of the housing, the fixing component is fixed to the wire harness component, and is at least partially disposed in the installation groove.
  • the fixing assembly includes a first structural member and a second structural member, the first structural member is fixedly connected to the wire harness assembly, and the second structural member is detachably connected to the first structural member.
  • the first structural member includes a first connecting portion and a first fixing portion, and the first fixing portion is arranged in the casing and fixed with the casing.
  • the second structural member includes a second fixing portion fixed with the casing, the second fixing portion is arranged on the outer surface of the casing, the second structural member is provided with a first receiving groove, the The first connecting portion is arranged in the first receiving groove.
  • the above-mentioned battery pack is fixedly connected to the first structural member and the wire harness assembly, the second structural member is detachably connected to the wire harness assembly, and the second structural member is partially arranged on the outer surface of the housing, and the first structural member and the second structural member are used.
  • the simple plug-in method simplifies the connection structure between the wire harness assembly and the housing and improves the production efficiency.
  • the battery pack 100 includes a housing 10 , a cell assembly 20 , a circuit board 30 , a wire harness assembly 40 and a fixing assembly 50 .
  • the housing 10 is provided with a mounting slot 101 .
  • the cell assembly 20 is disposed in the housing 10 , and the cell assembly 20 includes a plurality of stacked cells.
  • the circuit board 30 is electrically connected to the cell assembly 20 and disposed in the housing 10 .
  • the wire harness assembly 40 includes a first end 41 and a second end 42 disposed opposite to each other, the first end 41 is soldered to the circuit board 30 , the second end 42 extends out of the housing 10 , and the The two ends 42 are provided with a connection component 421 .
  • connection component 421 may include a connector for transmitting current and a connector for transmitting signals.
  • connection component 421 may include a terminal provided on the second end 42 Or conductive parts, the specific number of the connection components 421 is not limited, and can be increased or decreased according to requirements.
  • the fixing component 50 is fixed to the wire harness component 40 , and the fixing component 50 is at least partially disposed in the installation slot 101 .
  • the size of the installation slot 101 is larger than the size of the connection component 421 , so that the connection component 421 can pass through the installation slot 101 .
  • the casing 10 includes a first casing 11 , a second casing 12 and a third casing 13
  • the second casing 12 is provided on the first casing 11 and the third casing 13
  • the third casing 13 , the second casing 12 , and the first casing 11 are arranged in sequence along the first direction, and the first direction is the direction indicated by the arrow A in FIG. 2 .
  • the second housing 12 is provided with a second accommodating space 120
  • the third housing 13 is provided with a third accommodating space 130
  • the second accommodating space 120 is communicated with the third accommodating space 130
  • the cell assembly 20 is provided in the Inside the second accommodating space 120 and the third accommodating space 130 .
  • the second casing 12 includes a plurality of second casing side walls 122, and the plurality of second casing side walls 122 are enclosed to form a second accommodation space 120. Specifically, four second casing side walls 122 are enclosed to form a second housing space 120. 2. The receiving space 120.
  • the third casing 13 includes a plurality of third casing side walls 131 and a third casing bottom wall 132 , and the plurality of third casing side walls 131 and the third casing bottom wall 132 are enclosed to form a third receiving space 130 . Yes, the four third housing side walls 131 and the third housing bottom wall 132 enclose the third housing space 130 .
  • the second casing 12 is fixedly connected with the third casing 13 , and the first casing 11 is disposed on the side of the second casing 12 away from the third casing 13 .
  • the installation slot 101 includes a first slot 111 provided in the first housing 11 and a second slot 121 provided in the second housing 12 , and the first slot 111 and the second slot 121 communicate with each other. .
  • the second casing 12 includes a first structural plate 123 disposed in the second receiving space 120 , and the first structural plate 123 contacts and connects the four second casing side walls 122 .
  • the second casing 12 is a plastic insulating structure, and the second casing 12 is integrally formed by an injection molding process.
  • the second receiving space 120 includes a second upper space 1201 and a second lower space 1202 disposed on opposite sides of the first structural plate 123 .
  • the second casing 12 includes a second upper side wall 1210 of the groove disposed in the second upper space 1201 , and the second upper side wall 1210 of the groove is in contact with the first structural plate 123 .
  • the second upper space 1201 and the second lower space 1202 are communicated through the second groove 121 .
  • the second fixing portion 522 is mounted on the upper side wall 1210 of the second groove, there is a gap M between the second fixing portion 522 and the upper side wall 1210 of the second groove, and the gap M communicates with the second groove.
  • the external water or other impurities enter the second upper space 1201 through the gap, and reduce the external water or other impurities entering the second lower space 1202 through the gap, thereby affecting the use of the battery pack 100 .
  • the second housing 12 includes a second structural board 124 disposed in the second receiving space 120 , the second structural board 124 is in contact with the first structural board 123 , the second shell side wall 122 includes a second shell left side wall 1221, a receiving slot 106 is formed between the second structural plate 124 and the second shell left side wall 1221, and the wire harness assembly 40 is located in the shell The part inside 10 is accommodated in the receiving slot 106 .
  • the receiving groove 106 is also provided with a plurality of reinforcing ribs 1061.
  • the plurality of reinforcing ribs 1061 are used for positioning the wire harness assembly 40, reducing the shaking of the wire harness assembly 40 in the housing 10, and on the other hand, improving the housing.
  • Strength of body 10 Preferably, viewed along the A direction, the installation slot 101 is provided between the second structural plate 124 and the left side wall 1221 of the second shell, and the accommodation slot 106 and the installation slot 101 are arranged adjacent to each other, which is beneficial for accommodating and installing the wire harness assembly 40 .
  • the second shell side wall 122 includes a second shell right side wall 1222 , a plurality of battery cells are arranged on the second structure board 124 and the second shell right side wall 1222 , and the second structure board 124 connects the power cells.
  • the core assembly 20 and the wire harness assembly 40 are separated to reduce interference between the wire harness assembly 40 and the cell assembly 20 and reduce the probability of damage to the cell assembly 20 and the wire harness assembly 40 .
  • the fixing assembly 50 includes a first structural member 51 and a second structural member 52 , the first structural member 51 is fixedly connected to the wire harness assembly 40 , and the second structural member 52 is connected to the wiring harness assembly 40 .
  • the first structural member 51 is detachably connected.
  • the size of the first structural member 51 is smaller than the size of the installation slot 101 , so that the first structural member 51 is assembled and fixed with the casing 10 from the inside of the casing 10 to the outside of the casing 10 , and the size of the second structural member 52 is larger than that of the casing 10 .
  • the size of the installation slot 101 is such that the second structural member 52 is assembled with the first structural member 51 from the outside of the casing 10 toward the inside of the casing 10 , and is fixed to the casing 10 and the first structural member 51 .
  • the wire harness assembly 40 and the housing 10 are fixed by the internal and external snapping of the first structural member 51 and the second structural member 52 , which does not require screws or clamps for pre-setting, which simplifies the assembly process.
  • the size of the installation groove 101 can be designed to be smaller, which is beneficial to reduce the material for sealing the installation groove 101
  • the size of the installation slot 101 only needs to meet the size requirements that the wire harness assembly can pass through.
  • the second structural member 52 is integrally formed by an injection molding process. In other embodiments, the second structural member 52 may also be assembled from other structural members.
  • the first structural member 51 includes a first connecting portion 511 and a first fixing portion 512 .
  • the first fixing portion 512 is disposed in the casing 10 and fixed to the casing 10 .
  • the second structural member 52 includes a second connecting portion 521 and a second fixing portion 522 , the second fixing portion 522 is disposed on the casing 10 and is fixed to the casing 10 , the second connecting portion 521 The second fixing portion 522 is connected, and the second connecting portion 521 is disposed in the installation slot 101 .
  • the second connecting portion 521 is provided with a first receiving groove 523 , and the first connecting portion 511 is disposed in the first receiving groove 523 .
  • first structural member 51 and the second connecting portion 521 are provided in the second groove 121
  • second fixing portion 522 is provided in the first groove 111 .
  • the first groove 111 extends inward from the outer surface of the casing 10
  • the second groove 121 extends from the second casing 12 to the third casing 13 .
  • the size of the first connecting portion 511 is smaller than the size of the installation groove 101
  • the size of the first fixing portion 512 is larger than or equal to the size of the installation groove 101 , so as to realize the installation and fixation of the first structural member 51 from the inside to the outside.
  • the size of the second connecting portion 521 is smaller than the size of the installation groove 101
  • the size of the second fixing portion 522 is greater than or equal to the size of the installation groove 101 , so as to realize the installation and fixation of the second structural member 52 from the outside to the inside.
  • the first structural member 51 is provided with a plurality of through holes 516 , and the wire harness assembly 40 penetrates the first structural member 51 from the plurality of through holes 516 .
  • a sealant is arranged in each of the through holes 516 to bond and fix the first structural member 51 and the wire harness assembly 40 .
  • One end of the first structural member 51 away from the second structural member 52 is further provided with a second groove 517 , and the plurality of through holes 516 are located in the second groove 517 .
  • the wire harness assembly 40 is inserted into the through hole 516 from the second groove 517 , and the second groove 517 is filled with sealant, which seals the through hole 516 on the one hand, and is used to bond and fix the first structural member 51 on the other hand. and the harness assembly 40.
  • the first connecting portion 511 of the first structural member 51 is generally a hollow structure, and includes a plurality of guide plates 5111 and a bottom plate 5112 , and the guide plate 5111 is connected to the first fixing portion 512 and the bottom plate 5112.
  • a plurality of the guide plates 5111 are arranged perpendicular to the bottom plate 5112 .
  • the through hole 516 penetrates through the bottom plate 5112 , and the through hole 516 is disposed between two adjacent guide plates 5111 .
  • the guide plate 5111 can be used to guide the insertion direction of the wire harness assembly 40 , thereby reducing the difficulty of assembling the battery pack 100 .
  • sealant can also be filled between the adjacent guide plates 5111 to improve the connection strength between the wire harness assembly 40 and the first structural member 51 .
  • the first receiving groove 523 penetrates the second connecting portion 521 and the second fixing portion 522 , and the first connecting portion 511 extends from the The free ends of the two connecting portions 521 are inserted into the first receiving grooves 523 , and the free ends of the first connecting portions 511 do not exceed the outer surface of the second fixing portion 522 .
  • the free ends of the second connecting portions 521 The end of the first fixing portion 512 facing the second structural member 52 can be abutted.
  • the peripheral edge of the second fixing portion 522 protrudes from the peripheral side surface of the second connecting portion 521 .
  • the second fixing portion 522 is disposed on the periphery of the end of the second connecting portion 521 .
  • the shape of the second fixing portion 522 matches the shape of the first groove 111 , and the thickness of the second fixing portion 522 is less than or equal to the depth of the first groove 111 .
  • the installation slot 101 is provided with a first support portion 102 , the outer surface of the housing 10 away from the outer surface of the cell assembly 20 extends beyond the first support portion 102 , and the second fixing portion 522 is provided on the first support portion 102 .
  • Support part 102 is provided on the first support portion 102 .
  • the first support portion 102 is disposed at one end of the second slot 121 connected to the first slot 111 , and the first support portion 102 does not extend beyond the first housing 11 .
  • the second housing 12 is provided with the first supporting portion 102
  • the first supporting portion 102 is provided on the periphery of the second groove 121
  • the second connecting portion of the second structural member 52 521 is disposed on the upper side wall 1210 of the second groove
  • the second fixing portion 522 of the second structural member 52 abuts the first supporting portion 102
  • the second fixing portion 522 does not exceed the first
  • the casing 11 is away from the outer surface of the second casing 12 .
  • the second support portion 104 is the upper side wall 1210 of the second groove.
  • a positioning portion 5221 is formed on a side surface of the second fixing portion 522 facing the first structural member 51 , a positioning hole 103 is defined on the first support portion 102 , and the positioning portion 5221 is arranged in the positioning hole 103.
  • the positioning portion 5221 can be interference fit with the positioning hole 103 , so that the second fixing portion 522 is fixed in the first groove 111 of the mounting groove 101 .
  • the installation slot 101 is further provided with a second support portion 104 , the second support portion 104 is disposed below the first support portion 102 along the first direction, and the free end of the second connection portion 521 is connected to the The second support portion 104 is described. Viewed along the A direction (in FIGS. 8 and 9 ), the first support portion 102 and the second support portion 104 are provided in the second upper space 1201 , which is beneficial to reduce the size of the battery pack 100 .
  • the first fixing portion 512 includes a first side wall 5121 , the outer side of the first side wall 5121 is provided with a buckle 513 , and the second connecting portion 521
  • a bayonet 524 is provided at one end of the first structural member 51
  • the buckle 513 is provided on the bayonet 524 to connect the first structural member 51 and the second structural member 52 to avoid the wiring harness assembly 40 During the pulling process, the first structural member 51 and the second structural member 52 are separated.
  • a first inclined surface 5131 and a first surface 5132 are formed on the buckle 513 , and a second inclined surface 5241 and a second surface 5242 are formed at the end of the bayonet 524 of the second connecting portion 521 .
  • the first surface 5132 and the second surface 5242 are disposed adjacent to each other.
  • the first structural member 51 and the second structural member 52 are fixed along the first direction.
  • the first inclined surface 5131 and the opposite direction of the first direction form a first included angle a, and the first included angle a is 40°-50°.
  • the second inclined surface 5241 forms a second included angle b with the opposite direction of the first direction, and the second included angle b is 25°-35°.
  • the first inclined surface 5131 can slide along the second inclined surface 5241 until the buckle 513 is fastened to the bayonet 524.
  • the arrangement of the first inclined surface 5131 and the second inclined surface 5241 can reduce the difficulty in the fastening of the buckle 513 and the bayonet 524, and make the connection process of the first structural member 51 and the second structural member 52 smoother.
  • the arrangement of the first surface 5132 and the second surface 5242 is beneficial to reduce the accidental separation of the buckle 513 and the bayonet 524 and improve the connection strength of the first structural member 51 and the second structural member 52 .
  • the second connecting portion 521 includes a plurality of second side walls 5222 to form a receiving space, and the bayonet 524 is provided in the receiving space.
  • the bayonet 524 The second inclined surface 5241 extends beyond the second side wall 5222, and the free end of the second side wall 5222 is connected to the second support portion 104, so that there is a gap between the second inclined surface 5241 and the inner wall of the installation slot 101. gap.
  • the second inclined surface 5241 will be deformed.
  • the aforementioned gap can provide a certain deformation space, and can also reduce the interference between the buckle 513 and the inner wall of the installation slot 101 .
  • the outer side of the first side wall 5121 is further provided with a guide portion 514
  • the housing 10 is provided with a first groove 105 communicating with the mounting groove 101 .
  • the guide portion 514 is provided in the first groove 105 , which is beneficial to guide the installation direction of the first structural member 51 and reduce the problem of reverse installation of the first structural member 51 .
  • a first gap 53 is further provided between the first fixing portion 512 and the housing 10 . Specifically, the first gap 53 is set between the first fixing portion 512 and the second slot 121 so that the first structural member 51 can be inserted into the second slot 121 smoothly, and the width of the first gap 53 is smaller than or equal to 0.3mm.
  • the second groove 121 limits the plane dimension of the first fixing portion 512 perpendicular to the first direction, and does not limit the length dimension of the first structural member 51 in the first direction, so that different sizes can be installed in the second groove 121
  • the first structural member 51 of the model improves the versatility of the battery pack 100 .
  • the battery pack 100 includes a sealant disposed in the first gap 53 , and the sealant is injected from the second casing 12 toward the first gap 53 to restrict external water or other impurities from entering the second casing 12 Inside.
  • a positioning member 515 is further provided at one end of the first structural member 51 away from the second structural member 52 , and the positioning member 515 abuts against the bottom end of the mounting slot 101 Sidewall 1211.
  • the positioning member 515 is substantially in the shape of a hook. When the first structural member 51 is connected to the second structural member 52 , the positioning member 515 is hooked on the bottom end sidewall of the second groove 121 . 1211, so as to reduce the possibility of the fixing assembly 50 being detached from the housing 10 under the action of external force.
  • the housing 10 is provided with a receiving groove 106 , and the wire harness assembly 40 is partially received in the receiving groove 106 .
  • the receiving slot 106 is provided in the second casing 12 and the third casing 13 .
  • Embodiments of the present application also provide a method for manufacturing the above-mentioned battery pack 100, including:
  • Step 1 Fix the first structural member 51 of the fixing assembly 50 to the wire harness assembly 40 .
  • Step 2 Solder the first end 41 of the wire harness assembly 40 to the circuit board 30 , and then connect the circuit board 30 and the cell assembly 20 , so that the circuit board 30 and the wire harness assembly 40 are jointly disposed on the cell assembly 20 .
  • Step 3 Set the cell assembly 20 , the circuit board 30 and the wire harness assembly 40 in the housing 10 , and the second end 42 of the wire harness assembly 40 passes through the installation slot 101 .
  • Step 4 The second structural member 52 of the fixing assembly 50 is inserted into the installation slot 101 from the outside to the inside, and is assembled and fixed with the first structural member 51 , thereby realizing the fixing of the wire harness assembly 40 and the housing 10 .
  • the plurality of wire harnesses in the wire harness assembly 40 pass through the first structural member 51 , and the first structural member 51 is filled with glue to fix the wire harness assembly 40 and the first structural member 51 .
  • the manufacturing method of the battery pack 100 further includes injecting sealant between the first fixing portion 512 in the second casing 12 and the casing 10 .
  • the manufacturing method of the battery pack 100 is manufactured in the order of the above steps, and other manufacturing steps may also be added between the above steps.
  • an embodiment of the present application further provides an electrical device 200 , where the electrical device 200 includes the battery pack 100 described in the above embodiments.
  • the electrical equipment includes, but is not limited to, electric vehicles, energy storage equipment, drones, and the like.

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

Abstract

本申请提供了一种电池组，包括壳体、设于壳体内的电芯组件、连接电芯组件的电路板、线束组件和固定组件。线束组件一端焊接电路板，另一端伸出壳体。固定组件与线束组件固定，至少部分设于壳体的安装槽。固定组件包括第一结构件和第二结构件，第一结构件固定连接线束组件，第二结构件与第一结构件可拆卸连接。第一结构件包括第一连接部和第一固定部，第一固定部设于壳体内，并与壳体固定。第二结构件设有第一收容槽，第一连接部设于第一收容槽。上述电池组利用第一结构件与第二结构件的简单插接方式，简化线束组件与壳体之间的连接结构，提高生产效率。本申请还提供一种具有上述电池组的用电设备和用于制造上述电池组的制造方法。

Description

电池组、用电设备和制造方法 技术领域
本申请涉及电池技术领域，具体涉及一种电池组、具有该电池组的用电设备和制造该电池组的制造方法。
背景技术
电池组为了便于使用，往往会从壳体中引出线束组件，以实现电池组与用电元件或电源之间的电连接。现有技术中，线束组件与壳体之间的装配固定结构较为复杂，还需要借助螺丝等紧固件来辅助固定，造成电池组的生产效率低下，生产成本提高。
发明内容
鉴于上述状况，本申请提供一种电池组、具有该电池组的用电设备和制造该电池组的制造方法，通过将第一结构件与线束组件固定连接，第二结构件与线束组件可拆卸连接，且第二结构件部分设于壳体的外表面，利用第一结构件与第二结构件的简单插接方式，简化线束组件与壳体之间的连接结构，提高生产效率。
本申请的实施例提供一种电池组，包括壳体、电芯组件、电路板、线束组件和固定组件。所述壳体设有安装槽，所述电芯组件设置于所述壳体内，所述电路板与所述电芯组件电连接，所述线束组件包括相对设置的第一端和第二端，所述第一端焊接于所述电路板，所述第二端伸出所述壳体，所述固定组件与所述线束组件固定，至少部分设于所述安装槽。所述固定组件包括第一结构件和第二结构件，所述第一结构件与所述线束组件固定连接，所述第二结构件与所述第一结构件可拆卸连接。所述第一结构件包括第一连接部和第 一固定部，所述第一固定部设于所述壳体内，并与所述壳体固定。所述第二结构件包括与所述壳体固定的第二固定部，所述第二结构件设有第一收容槽，所述第一连接部设于所述第一收容槽。
在一些实施例中，所述第二结构件包括第二连接部，所述第二连接部连接所述第二固定部，且所述第二连接部设于所述安装槽，所述第二连接部设有所述第一收容槽。
在一些实施例中，所述安装槽设有第一支撑部，所述壳体远离所述电芯组件的外表面超出所述第一支撑部，所述第二固定部设于所述第一支撑部。
在一些实施例中，所述安装槽设有第二支撑部，所述第二连接部的自由端设于所述第二支撑部。
在一些实施例中，所述第二固定部上设有定位部，所述第一支撑部上设有定位孔，所述定位部设于所述定位孔。
在一些实施例中，所述第一固定部包括第一侧壁，所述第一侧壁的外侧设有卡扣，所述第二连接部朝向所述第一结构件的一端设有卡口，所述卡扣设于所述卡口。
在一些实施例中，所述第一侧壁的外侧设有导向部，所述壳体设有和所述安装槽连通的第一凹槽，所述导向部设于所述第一凹槽。
在一些实施例中，所述卡扣上设有第一倾斜面和第一表面，所述第二连接部设有第二倾斜面和第二表面，所述第一表面与所述第二表面邻近设置，所述第一结构件和所述第二结构件沿第一方向固定，所述第一倾斜面和所述第一方向的反方向形成第一夹角，所述第一夹角为40°-50°。
在一些实施例中，所述第二倾斜面与所述第一方向的反方向形成第二夹角，所述第二夹角为25°-35°。
在一些实施例中，所述第一结构件远离所述第二结构件的一端设有定位件，所述定位件抵接所述安装槽的底端侧壁。
在一些实施例中，所述第一结构件内设有多个通孔，所述线束组件包括线束，所述线束设于通孔内，所述线束通过粘接胶和第一结构件固定。
在一些实施例中，所述第一固定部和所述壳体之间设有第一间隙，所述第一间隙内设有密封件。
在一些实施例中，所述第一结构件远离所述第二结构件的一端设有第二凹槽，所述多个通孔位于所述第二凹槽内。
在一些实施例中，所述壳体包括第一壳体、第二壳体和第三壳体，所述第二壳体设于所述第一壳体和所述第三壳体之间，所述安装槽包括设于所述第一壳体的第一槽和设于所述第二壳体的第二槽，所述第一槽和所述第二槽连通。
在一些实施例中，所述壳体内设有收纳槽，所述线束组件部分收容于所述收纳槽内。
在一些实施例中，所述第一结构件尺寸小于所述安装槽，以使得所述第一结构件从内向外与所述壳体组装固定，所述第二结构尺寸大于所述安装槽，以使得所述第二结构件从外朝向内与所述第一结构件组装固定。
本申请的实施例还提供一种用电设备，包括上述实施例所述的电池组。
本申请的实施例还提供上述电池组的制造方法，包括如下步骤：
步骤1：将固定组件的第一结构件与线束组件固定，
步骤2：将线束组件的第一端焊接于电路板，随后连接电路板与电芯组件，以使所述电路板和所述线束组件共同设于所述电芯组件；
步骤3：将所述电芯组件、所述电路板和所述线束组件设于壳体中，所述线束组件的第二端穿过所述壳体的安装槽；
步骤4：将第二结构件从外向内插入所述安装槽并与所述第一 结构件组装固定。
上述电池组通过将第一结构件与线束组件固定连接，第二结构件与第一结构件可拆卸连接，且第二结构件部分设于壳体的外表面，利用第一结构件与第二结构件的简单插接方式，简化线束组件与壳体之间的连接结构，提高生产效率。
附图说明
图1为电池组在一实施例中的结构示意图。
图2为图1所示电池组的分解结构示意图。
图3为图1所示电池组移除部分壳体后的结构示意图。
图4为图2所示电池组中第一结构件的结构示意图。
图5为图4所示第一结构件在另一方向的结构示意图。
图6为图2所示电池组中第二结构件的结构示意图。
图7为图6所示第二结构件在另一方向的结构示意图。
图8为图1所示电池组部分结构的剖视图。
图9为图8所示结构的局部放大图。
图10为第一结构件和第二结构件连接后的剖面结构示意图。
图11为图1所示电池组移除第三壳体后的仰视图。
图12为图11所示结构的局部放大图。
图13为图1所示电池组在另一方向上的剖视图。
图14为图2所示电池组中第二壳体在一方向上的结构示意图。
图15为图2所示电池组中第二壳体在另一方向上的结构示意图。
图16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                    100
用电设备                  200
壳体                      10
安装槽                    101
第一支撑部                102
定位孔                    103
第二支撑部                104
第一凹槽                  105
收纳槽                    106
加强筋                    1061
第一壳体                  11
第一槽                    111
第二壳体                  12
第二槽                    121
第二槽上侧壁              1210
底端侧壁                  1211
第二收容空间              120
第二上空间                1201
第二下空间                1202
第二壳侧壁                122
第二壳左侧壁              1221
第二壳右侧壁              1222
第一结构板                123
第二结构板                124
第三壳体                  13
第三收容空间              130
第三壳侧壁                131
第三壳底壁                132
电芯组件                  20
电路板                    30
线束组件                  40
第一端                    41
第二端                    42
连接组件                  421
固定组件                  50
第一结构件                51
第一连接部                511
导向板                    5111
第一固定部                512
第一侧壁                  5121
卡扣                      513
第一倾斜面                5131
第一表面                  5132
导向部                    514
定位件                    515
通孔                      516
第二凹槽                  517
第二结构件                52
第二连接部                521
第二固定部                522
定位部                    5221
第二侧壁                  5222
第一收容槽                523
卡口                      524
第二倾斜面                5241
第二表面                  5242
第一间隙                  53
第一夹角                  a
第二夹角                  b
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”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，包括壳体、电芯组件、电路板、线束组件和固定组件。所述壳体设有安装槽，所述电芯组件设置于所述壳体内，所述电路板与所述电芯组件电连接，所述线束组件包括相对设置的第一端和第二端，所述第一端焊接于所述电路板，所述第二端伸出所述壳体，所述固定组件与所述线束组件固定，至少部分设于所述安装槽。所述固定组件包括第一结构件和第二结构 件，所述第一结构件与所述线束组件固定连接，所述第二结构件与所述第一结构件可拆卸连接。所述第一结构件包括第一连接部和第一固定部，所述第一固定部设于所述壳体内，并与所述壳体固定。所述第二结构件包括与所述壳体固定的第二固定部，所述第二固定部设于所述壳体的外表面，所述第二结构件设有第一收容槽，所述第一连接部设于所述第一收容槽。
上述电池组通过将第一结构件与线束组件固定连接，第二结构件与线束组件可拆卸连接，且第二结构件部分设于壳体的外表面，利用第一结构件与第二结构件的简单插接方式，简化线束组件与壳体之间的连接结构，提高生产效率。
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，在一实施例中，电池组100包括壳体10、电芯组件20、电路板30、线束组件40和固定组件50。所述壳体10设有安装槽101。所述电芯组件20设置于所述壳体10内，所述电芯组件20包括多个堆叠设置的电芯。所述电路板30与所述电芯组件20电连接，并设置于所述壳体10内。所述线束组件40包括相对设置的第一端41和第二端42，所述第一端41焊接于所述电路板30，所述第二端42伸出所述壳体10，所述第二端42设置有连接组件421，在一些实施例，连接组件421可以包括有传输电流的连接器和传输信号的连接器，其他实施例中，连接组件421可包括设于第二端42的端子或导电件，连接组件421的具体数量不限，可依据需求增加或减少。所述固定组件50与所述线束组件40固定，所述固定组件50至少部分设于所述安装槽101。所述安装槽101的尺寸大于所述连接组件421的尺寸，以让所述连接组件421可以穿过所述安装槽101。进一步的，所述壳体10包括第一壳体11、第二壳体12和第三壳体13，所述第二壳体12设于所述第一壳体11和所述第三 壳体13之间，第三壳体13、第二壳体12、第一壳体11沿第一方向依次设置，所述第一方向为图2中箭头A指示的方向。具体地，所述第二壳体12设有第二收容空间120，第三壳体13设有第三收容空间130，第二收容空间120和第三收容空间130连通，电芯组件20设于第二收容空间120和第三收容空间130内。进一步的，第二壳体12包括多个第二壳侧壁122，多个第二壳侧壁122围合形成第二收容空间120，具体的，四个第二壳侧壁122围合形成第二收容空间120。进一步的，第三壳体13包括多个第三壳侧壁131和第三壳底壁132，多个第三壳侧壁131和第三壳底壁132围合形成第三收容空间130，具体的，四个第三壳侧壁131和第三壳底壁132围合形成第三收容空间130。
所述第二壳体12与第三壳体13固定连接，所述第一壳体11设于所述第二壳体12背离第三壳体13的一侧。所述安装槽101包括设于所述第一壳体11的第一槽111和设于所述第二壳体12的第二槽121，所述第一槽111和所述第二槽121连通。
请参阅图2和图8，第二壳体12包括设于第二收容空间120内的第一结构板123，所述第一结构板123接触连接四个第二壳侧壁122。优选的，第二壳体12为塑胶绝缘结构，所述第二壳体12通过注塑成型工艺一体成型。沿A方向观察，所述第二收容空间120包括设于第一结构板123相对两侧的第二上空间1201和第二下空间1202。第二壳体12包括设于第二上空间1201的第二槽上侧壁1210，所述第二槽上侧壁1210接触连接于第一结构板123。第二上空间1201和第二下空间1202通过第二槽121连通。所述第二固定部522安装于所述第二槽上侧壁1210，所述第二固定部522和所述第二槽上侧壁1210之间存在间隙M，所述间隙M连通于第二上空间1201，外部的水或其他杂质通过间隙进入到第二上空间1201，减少外部的水或其他杂质通过间隙进入到第二下空间1202，从而影响电池组 100的使用。
请参阅图2、图13、图14和图15，第二壳体12包括设于第二收容空间120内的第二结构板124，所述第二结构板124接触连接于第一结构板123，所述第二壳侧壁122包括第二壳左侧壁1221，所述第二结构板124和第二壳左侧壁1221之间形成收纳槽106，所述线束组件40位于所述壳体10内的部分收容于所述收纳槽106。所述收纳槽106内还设有多个加强筋1061，所述多个加强筋1061一方面用于定位线束组件40，减少线束组件40在壳体10内的晃动，另一方面用于提高壳体10的强度。优选的，沿A方向观察，安装槽101设于第二结构板124和第二壳左侧壁1221之间，所述收纳槽106和安装槽101相邻设置，有利于收容安装线束组件40。所述第二壳侧壁122包括第二壳右侧壁1222，多个电芯设于所述第二结构板124和所述第二壳右侧壁1222，所述第二结构板124将电芯组件20和线束组件40分隔，减少线束组件40和电芯组件20干涉，降低电芯组件20和线束组件40被损坏的概率。
请参阅图2至图7，所述固定组件50包括第一结构件51和第二结构件52，所述第一结构件51与所述线束组件40固定连接，所述第二结构件52与第一结构件51可拆卸连接。所述第一结构件51的尺寸小于所述安装槽101的尺寸，以使得第一结构件51从壳体10内朝向壳体10外与壳体10组装固定，第二结构件52的尺寸大于所述安装槽101的尺寸，以使得第二结构件52从壳体10外朝向壳体10内与第一结构件51组装，并与壳体10和第一结构件51固定。组装时，通过第一结构件51和第二结构件52内外扣合将线束组件40与壳体10固定，无需螺丝和无需夹具进行预定，简化组装过程。另外，通过将第二结构件52从壳体10外朝向壳体10内与第一结构件51组装，可以将安装槽101的尺寸设计的更小，有利于减少对安装槽101进行密封的材料，比如，安装槽101的尺寸只需满 足线束组件能穿过的尺寸要求。本实施例中，所述第二结构件52通过注塑成型工艺一体成型。其他的实施例中，第二结构件52也可以是其他是多个结构件组装而成。
所述第一结构件51包括第一连接部511和第一固定部512，所述第一固定部512设于所述壳体10内，并与所述壳体10固定。所述第二结构件52包括第二连接部521及第二固定部522，所述第二固定部522设于所述壳体10并与所述壳体10固定，所述第二连接部521连接所述第二固定部522，且所述第二连接部521设于所述安装槽101内。所述第二连接部521设有第一收容槽523，所述第一连接部511设于所述第一收容槽523内。具体地，所述第一结构件51和所述第二连接部521设于所述第二槽121，所述第二固定部522设于所述第一槽111内。第一槽111由壳体10的外表面向内延伸，第二槽121由第二壳体12向第三壳体13延伸。
在本申请的实施例中，第一连接部511的尺寸小于安装槽101的尺寸，第一固定部512的尺寸大于或等于安装槽101的尺寸，以实现第一结构件51从内向外安装固定，第二连接部521的尺寸小于安装槽101的尺寸，第二固定部522的尺寸大于或等于安装槽101的尺寸，以实现第二结构件52从外向内安装固定。
请再次参阅图4和图5，所述第一结构件51内设有多个通孔516，所述线束组件40从所述多个通孔516贯穿所述第一结构件51，所述多个通孔516内设置密封胶，以粘接固定所述第一结构件51和所述线束组件40。所述第一结构件51远离所述第二结构件52的一端还设有第二凹槽517，所述多个通孔516位于所述第二凹槽517内。所述线束组件40从第二凹槽517内插入通孔516，且第二凹槽517内填充密封胶，一方面密封通孔516，另一方面用于粘接固定所述第一结构件51和所述线束组件40。
在本申请的实施例中，所述第一结构件51的第一连接部511 大致呈镂空结构，包括多个导向板5111和底板5112，所述导向板5111连接于所述第一固定部512和所述底板5112之间。多个所述导向板5111垂直于所述底板5112设置。所述通孔516贯穿所述底板5112，且所述通孔516设于相邻两个导向板5111之间。当线束组件40插入通孔516时，导向板5111可用于导向线束组件40的插入方向，降低电池组100的组装难度。进一步的，相邻导向板5111之间也可以填充密封胶，以提高线束组件40与第一结构件51的连接强度。
请参阅图2、图6、图7、图8和图9，所述第一收容槽523贯穿所述第二连接部521和第二固定部522，所述第一连接部511从所述第二连接部521的自由端插入所述第一收容槽523，且所述第一连接部511的自由端不超出所述第二固定部522的外表面，所述第二连接部521的自由端可抵接所述第一固定部512朝向所述第二结构件52的一端。所述第二固定部522的周缘凸出所述第二连接部521的周侧表面，在本申请的实施例中，所述第二固定部522为设置在第二连接部521端部的周侧凸缘，所述第二固定部522的形状与所述第一槽111的形状匹配，所述第二固定部522的厚度小于或等于所述第一槽111的深度。
所述安装槽101设有第一支撑部102，所述壳体10远离所述电芯组件20的外表面超出所述第一支撑部102，所述第二固定部522设于所述第一支撑部102。
所述第一支撑部102设于所述第二槽121连接所述第一槽111的一端，且所述第一支撑部102不超出所述第一壳体11。具体地，所述第二壳体12设有所述第一支撑部102，所述第一支撑部102设于所述第二槽121的周边，所述第二结构件52的第二连接部521设于所述第二槽上侧壁1210，所述第二结构件52的第二固定部522抵接所述第一支撑部102，且所述第二固定部522不超出所述第一 壳体11远离第二壳体12的外表面。优选的，本实施例中，第二支撑部104是第二槽上侧壁1210。所述第二固定部522朝向所述第一结构件51的一侧表面设有定位部5221，所述第一支撑部102上设有定位孔103，所述定位部5221设于所述定位孔103。所述定位部5221可以与所述定位孔103过盈配合，以使所述第二固定部522固定于所述安装槽101的第一槽111内。所述安装槽101还设有第二支撑部104，沿第一方向，所述第二支撑部104设于所述第一支撑部102下方，所述第二连接部521的自由端连接于所述第二支撑部104。沿A方向观察(图8和图9中)，所述第一支撑部102和所述第二支撑部104设于第二上空间1201，有利于减小电池组100的尺寸。
请参阅图4、图7、图9和图10，所述第一固定部512包括第一侧壁5121，所述第一侧壁5121的外侧设有卡扣513，所述第二连接部521朝向所述第一结构件51的一端设有卡口524，所述卡扣513设于所述卡口524，以连接所述第一结构件51和第二结构件52，避免在线束组件40拉扯的过程中，第一结构件51与第二结构件52分离。所述卡扣513上设有第一倾斜面5131和第一表面5132，所述第二连接部521的卡口524端部设有第二倾斜面5241和第二表面5242。所述第一结构件51与所述第二结构件52连接后，所述第一表面5132与所述第二表面5242邻近设置。所述第一结构件51和所述第二结构件52沿第一方向固定。所述第一倾斜面5131和所述第一方向的反方向形成第一夹角a，所述第一夹角a为40°-50°。所述第二倾斜面5241与所述第一方向的反方向形成第二夹角b，所述第二夹角b为25°-35°。
所述第一结构件51与所述第二结构件52插接的过程中，所述第一倾斜面5131可以沿所述第二倾斜面5241滑动，直至所述卡扣513扣接至卡口524中。第一倾斜面5131和第二倾斜面5241的设 置可以降低卡扣513和卡口524的扣接难度，使第一结构件51和第二结构件52的连接过程更顺滑。第一表面5132和第二表面5242的设置有利于降低卡扣513和卡口524意外分离，提升第一结构件51和第二结构件52的连接强度。
在本申请的实施例中，第二连接部521包括多个第二侧壁5222围合形成一个收容空间，所述卡口524设在该收容空间内，沿第一方向，所述卡口524的第二倾斜面5241超出所述第二侧壁5222，所述第二侧壁5222的自由端连接于第二支撑部104，以使第二倾斜面5241和安装槽101的内壁之间留有间隙。第一结构件51和第二结构件52组装过程中，第二倾斜面5241处会发生变形，前述间隙可以提供一定的变形空间，也可以减少卡扣513和安装槽101的内壁发生干涉。
请参阅图4、图11和图12，所述第一侧壁5121的外侧还设有导向部514，所述壳体10设有和所述安装槽101连通的第一凹槽105，所述导向部514设于所述第一凹槽105，有利于导向第一结构件51的安装方向，并减少第一结构件51装反的问题。所述第一固定部512和所述壳体10之间还设有第一间隙53。具体地，所述第一间隙53设于所述第一固定部512与所述第二槽121之间，以便第一结构件51顺利插入第二槽121，所述第一间隙53的宽度小于或等于0.3mm。所述第二槽121限制第一固定部512在垂直于第一方向的平面尺寸，并不限制第一结构件51在第一方向上的长度尺寸，从而使第二槽121内可以安装不同尺寸型号的第一结构件51，提高电池组100的通用性。优选的，电池组100包括设于第一间隙53内密封胶，所述密封胶由第二壳体12内朝向所述第一间隙53注入，限制外部的水或其他杂质进入第二壳体12内。
请参阅图5、图12和图13，所述第一结构件51远离所述第二结构件52的一端还设有定位件515，所述定位件515抵接所述安装 槽101的底端侧壁1211。在本申请的实施例中，所述定位件515大致呈挂钩状，所述第一结构件51与第二结构件52连接时，所述定位件515钩住第二槽121的底端侧壁1211，以减少固定组件50在外力作用下脱离壳体10的可能性。
请再次参阅图13，所述壳体10内设有收纳槽106，所述线束组件40部分收容于所述收纳槽106内。具体地，所述收纳槽106设于所述第二壳体12和第三壳体13内。
本申请的实施例还提供上述电池组100的制造方法，包括：
步骤1：将固定组件50的第一结构件51与线束组件40固定。
步骤2：将线束组件40的第一端41焊接于电路板30，随后连接电路板30与电芯组件20，以使电路板30和线束组件40共同设于电芯组件20。
步骤3：将电芯组件20、电路板30和线束组件40设于壳体10中，线束组件40的第二端42穿过安装槽101。
步骤4：固定组件50的第二结构件52从外向内插入安装槽101并与第一结构件51组装固定，从而实现线束组件40与壳体10的固定。
进一步的，线束组件40中的多根线束贯穿第一结构件51，第一结构件51内填充胶水以固定线束组件40与第一结构件51。
进一步的，电池组100的制造方法还包括由第二壳体12内第一固定部512和所述壳体10之间注入密封胶。
优选的，在一些实施例中，所述述电池组100的制造方法按照上述步骤顺序制造，在上述步骤之间也可以增加其他的制造制造步骤。
请参阅图16，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100。所述用电设备包括但不限于电动车、储能设备、无人机等。
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)

  1. 一种电池组，包括：
    壳体，设有安装槽；
    电芯组件，设置于所述壳体内；
    电路板，与所述电芯组件电连接；
    线束组件，包括相对设置的第一端和第二端，所述第一端焊接于所述电路板，所述第二端伸出所述壳体；
    固定组件，与所述线束组件固定，所述固定组件至少部分设于所述安装槽；
    其特征在于，所述固定组件包括第一结构件和第二结构件，所述第一结构件与所述线束组件固定连接，所述第二结构件与所述第一结构件可拆卸连接；
    所述第一结构件包括第一连接部和第一固定部，所述第一固定部设于所述壳体内，并与所述壳体固定；
    所述第二结构件包括与所述壳体固定的第二固定部，所述第二结构件设有第一收容槽，所述第一连接部设于所述第一收容槽。
  2. 如权利要求1所述的电池组，其特征在于，所述第二结构件包括第二连接部，所述第二连接部连接所述第二固定部，且所述第二连接部设于所述安装槽，所述第二连接部设有所述第一收容槽。
  3. 如权利要求2所述的电池组，其特征在于，所述安装槽设有第一支撑部，所述壳体远离所述电芯组件的外表面超出所述第一支撑部，所述第二固定部设于所述第一支撑部。
  4. 如权利要求3所述的电池组，其特征在于，所述安装槽设有第二支撑部，所述第二连接部的自由端设于所述第二支撑部。
  5. 如权利要求3所述的电池组，其特征在于，所述第二固定部上设有定位部，所述第一支撑部上设有定位孔，所述定位部设于所述定位孔。
  6. 如权利要求2所述的电池组，其特征在于，所述第一固定部包括第一侧壁，所述第一侧壁的外侧设有卡扣，所述第二连接部朝向所述第一结构件的一端设有卡口，所述卡扣设于所述卡口。
  7. 如权利要求6所述的电池组，其特征在于，所述第一侧壁的外侧设有导向部，所述壳体设有和所述安装槽连通的第一凹槽，所述导向部设于所述第一凹槽。
  8. 如权利要求6所述的电池组，其特征在于，所述卡扣上设有第一倾斜面和第一表面，所述第二连接部设有第二倾斜面和第二表面，所述第一表面与所述第二表面邻近设置，所述第一结构件和所述第二结构件沿第一方向固定，所述第一倾斜面和所述第一方向的反方向形成第一夹角，所述第一夹角为40°-50°。
  9. 如权利要求8所述的电池组，其特征在于，所述第二倾斜面与所述第一方向的反方向形成第二夹角，所述第二夹角为25°-35°。
  10. 如权利要求1所述的电池组，其特征在于，所述第一结构件远离所述第二结构件的一端设有定位件，所述定位件抵接所述安装槽的底端侧壁。
  11. 如权利要求1所述的电池组，其特征在于，所述第一结构件设有多个通孔，所述线束组件包括线束，所述线束设于所述通孔内，所述线束通过粘接胶和所述第一结构件固定。
  12. 如权利要求11所述的电池组，其特征在于，所述第一固定部和所述壳体之间设有第一间隙，所述第一间隙内设有密封件。
  13. 如权利要求11所述的电池组，其特征在于，所述第一结构件远离所述第二结构件的一端设有第二凹槽，所述多个通孔位于所述第二凹槽内。
  14. 如权利要求1所述的电池组，其特征在于，所述壳体包括第一壳体、第二壳体和第三壳体，所述第二壳体设于所述第一壳体和所述第三壳体之间，所述安装槽包括设于所述第一壳体的第一槽和设 于所述第二壳体的第二槽，所述第一槽和所述第二槽连通。
  15. 如权利要求1所述的电池组，其特征在于，所述壳体内设有收纳槽，所述线束组件部分收容于所述收纳槽内。
  16. 如权利要求1所述的电池组，其特征在于，所述第一结构件尺寸小于所述安装槽，以使得所述第一结构件从内向外与所述壳体组装固定，所述第二结构件尺寸大于所述安装槽，以使得所述第二结构件从外朝向内与所述第一结构件组装固定。
  17. 一种用电设备，其特征在于，包括如权利要求1-16任一项所述的电池组。
  18. 一种电池组的制造方法，用于制造权利要求1-16任一项所述的电池组，包括如下步骤：
    步骤1：将固定组件的第一结构件与线束组件固定，
    步骤2：将线束组件的第一端焊接于电路板，随后连接电路板与电芯组件，以使所述电路板和所述线束组件共同设于所述电芯组件；
    步骤3：将所述电芯组件、所述电路板和所述线束组件设于壳体中，所述线束组件的第二端穿过所述壳体的安装槽；
    步骤4：将第二结构件从外向内插入所述安装槽并与所述第一结构件组装固定。
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CN210866336U (zh) * 2019-11-20 2020-06-26 欣旺达电动汽车电池有限公司 电池模组线束固定装置、电气隔离板及电池模组

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