CN116526047A - Output electrode base and battery pack - Google Patents

Output electrode base and battery pack Download PDF

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Publication number
CN116526047A
CN116526047A CN202310645300.4A CN202310645300A CN116526047A CN 116526047 A CN116526047 A CN 116526047A CN 202310645300 A CN202310645300 A CN 202310645300A CN 116526047 A CN116526047 A CN 116526047A
Authority
CN
China
Prior art keywords
mount
mounting seat
output electrode
bracket
output pole
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202310645300.4A
Other languages
Chinese (zh)
Inventor
杨帅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eve Energy Co Ltd
Original Assignee
Eve Energy Co Ltd
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 Eve Energy Co Ltd filed Critical Eve Energy Co Ltd
Priority to CN202310645300.4A priority Critical patent/CN116526047A/en
Publication of CN116526047A publication Critical patent/CN116526047A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—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
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
    • 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
    • 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
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside 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

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

Abstract

The invention provides an output electrode base and a battery pack, wherein the output electrode base comprises a support, a mounting seat, an insert nut and an output electrode busbar, the mounting seat is mounted on the support, the mounting seat comprises a mounting seat main body and a side guard plate protruding from the edge of the mounting seat main body, the mounting seat main body and the side guard plate enclose to form an accommodating space, the surface of the mounting seat main body far away from the side guard plate is convexly provided with a hollow accommodating part, the insert nut is embedded in the accommodating part of the mounting seat main body, and the output electrode busbar is partially arranged in the accommodating space and contacted with the end part, so that the output electrode busbar is separated from the support by the mounting seat, the insert nut drawing force attenuation caused by softening of the support along with temperature rise is avoided, the shaking of the output electrode busbar during the whole package vibration is avoided, and the risk of disengaging the output electrode busbar from a welding position of a battery core is reduced.

Description

Output electrode base and battery pack
Technical Field
The invention relates to the technical field of batteries, in particular to an output electrode base and a battery pack.
Background
At present, a conventional output electrode base is not provided with an end plate, an insert nut is hot-pressed in a plastic bracket of an integrated busbar to fix the output electrode busbar, and the plastic bracket is mostly made of PC+ABS materials with low cost.
The thermal deformation temperature of PC+ABS material is 105 ℃, the Vicat softening temperature is 125 ℃, when the flatness or roughness of the output electrode bus bar and the copper bar is poor, the contact internal resistance of the output electrode bus bar and the copper bar is larger, the temperature is increased along with the increase of the contact internal resistance, and the plastic bracket is softened, carbonized and even melted at high temperature for a long time. In the whole package vibration process, the performance of the plastic support material changes along with temperature rise, the drawing force of the insert nut can attenuate and even deviate from the plastic support, the output electrode busbar and the copper bar can shake along with the whole package vibration, and the risk of separating exists at the welding position of the output electrode busbar and the battery cell.
Therefore, it is necessary to provide an output electrode base and a battery pack to improve this disadvantage.
Disclosure of Invention
The embodiment of the invention provides an output electrode base and a battery pack, which can prevent the support from softening along with temperature rise to cause the attenuation of the drawing force of an insert nut, so as to prevent the output electrode busbar from shaking when the whole pack vibrates, and further reduce the risk of detachment of the welding part of the output electrode busbar and a battery cell.
An embodiment of the present invention provides an output electrode base including:
a bracket;
the mounting seat is mounted on the bracket and comprises a mounting seat main body and a side guard plate convexly arranged on the edge of the mounting seat main body, the mounting seat main body and the side guard plate are enclosed to form an accommodating space, and a hollow accommodating part is convexly arranged on the surface, far away from the side guard plate, of the mounting seat main body;
the insert nut is embedded in the accommodating part, and the surface, close to the side guard plate, of the mounting seat main body exposes part of the end part of the insert nut; and
and the output electrode bus bar is partially arranged in the accommodating space and is contacted with the end part, and the mounting seat separates the output electrode bus bar from the bracket.
In an embodiment, the insert nut is provided with a rod part connected with the end part, the circumferential surface of the rod part is provided with a plurality of protrusions extending along the radial direction of the rod part, the inner wall of the accommodating part is provided with a plurality of first imitation grooves which are arranged in one-to-one correspondence with the protrusions, and the protrusions are embedded in the first imitation grooves.
In one embodiment, the rod part is provided with an annular groove concavely arranged along the radial direction of the rod part, and a plurality of protrusions are respectively arranged at two sides of the annular groove;
the inner wall of the accommodating part is provided with a protruding part which is embedded in the annular groove.
In one embodiment, the diameter of the end portion is greater than the diameter of the stem portion.
In one embodiment, the bracket has a bracket body and a mounting portion protruding from a surface of the bracket body away from the output electrode busbar, the bracket has a mounting hole penetrating the bracket body and the mounting portion, and the receiving portion is fitted in the mounting hole.
In an embodiment, one of the outer wall of the accommodating part and the hole wall of the mounting hole is provided with a plurality of profiling protrusions, the other one of the outer wall of the accommodating part and the hole wall of the mounting hole is provided with a plurality of second profiling grooves which are arranged in one-to-one correspondence with the profiling protrusions, and the profiling protrusions are embedded in the second profiling grooves.
In one embodiment, the bracket has at least one reinforcing rib disposed between the mounting portion and the bracket body and connected to the mounting portion and the bracket body, respectively.
In one embodiment, the surface of the end portion contacting the output electrode busbar protrudes from the surface of the mount body adjacent to the output electrode busbar.
In one embodiment, the mount has a first opening formed on a surface of the mount body adjacent to the output pole busbar and a second opening formed in the mount body and the receiving portion, the first opening communicating with the second opening, the first opening having a diameter greater than a diameter of the second opening;
the surface of the end part far away from the output electrode busbar is attached to the bottom surface of the first opening, the circumferential surface of the end part is attached to the wall of the first opening, and the thickness of the end part is larger than the depth of the first opening; the insert nut has a shank connected with the end portion, the shank being inserted into the second aperture and conforming to the aperture wall and bottom surface of the second aperture.
In an embodiment, the mounting seat main body is provided with a plurality of mounting seat buckles, the support is provided with a plurality of first openings corresponding to the mounting seat buckles one by one, and the mounting seat buckles are clamped with the first openings.
In an embodiment, the thickness of the mount clip is greater than or equal to 1 millimeter and less than or equal to 1.5 millimeters.
In an embodiment, the mounting seat main body is provided with a plurality of second openings, and the second openings are arranged adjacent to the mounting seat buckles.
In an embodiment, the output electrode base further includes an output electrode protection cover, the output electrode protection cover has a plurality of protection cover buckles, a side surface of the side protection plate has a protruding hanging ear, the hanging ear has an opening, and the protection cover buckles are engaged with the opening.
In an embodiment, the bracket is provided with an avoidance groove which is arranged corresponding to the hanging lugs, and the hanging lugs are arranged in the avoidance groove.
The embodiment of the invention also provides a battery pack which comprises the output electrode base.
The invention has the beneficial effects that:
according to the invention, the output electrode base comprises a support, a mounting seat, an insert nut and an output electrode busbar, wherein the mounting seat is mounted on the support and comprises a mounting seat main body and a side guard plate convexly arranged on the edge of the mounting seat main body, the mounting seat main body and the side guard plate are enclosed to form a containing space, the surface of the mounting seat main body far away from the side guard plate is convexly provided with a hollow containing part, the insert nut is embedded in the containing part of the mounting seat main body, and the output electrode busbar is partially arranged in the containing space and is contacted with the end part, so that the output electrode busbar is separated from the support by the mounting seat, the insert nut drawing force attenuation caused by softening of the support along with temperature rise is avoided, the shaking of the output electrode busbar in the whole package vibration process is avoided, and the risk of detachment of the output electrode busbar and a battery core welding part is reduced.
Drawings
In order to more clearly illustrate the embodiments or the technical solutions in the prior art, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic front view of an output electrode base according to an embodiment of the present invention;
FIG. 2 is an exploded view of an output pole mount according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a back structure of an output electrode base according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a structure of an output electrode base before an output electrode protection cover is installed according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of the output pole mount of FIG. 1 taken along the direction A-A
FIG. 6 is a cross-sectional view of the output pole mount shown in FIG. 1 taken along the direction B-B';
FIG. 7 is a schematic view of an insert nut according to an embodiment of the present invention;
fig. 8 is a schematic front view of a mounting seat according to an embodiment of the present invention;
FIG. 9 is a schematic view of a back structure of a mounting base according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of a front structure of a stand according to an embodiment of the present invention;
FIG. 11 is a schematic view of a back structure of a bracket according to an embodiment of the present invention;
the names of the corresponding components in the figures are: 100-output pole base, 1-support, 11-support main part, 12-installation department, 13-mounting hole, 14-stiffening rib, 15-first opening, 16-dodge groove, 2-mount pad, 21-mount pad main part, 22-side shield, 23-receiver, 231-first imitative groove, 232-bulge, 233-imitative bulge, 24-first trompil, 25-second trompil, 26-mount pad buckle, 27-second opening, 28-hangers, 29-opening, 3-insert nut, 31-tip, 32-pole portion, 321-bulge, 322-ring channel, 4-output pole busbar, 5-output pole visor, 51-visor buckle.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the invention. In the present invention, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.
Referring to fig. 1 and 2, an output pole base 100 includes a bracket 1, a mounting base 2, an insert nut 3, an output pole busbar 4 and an output pole protection cover 5.
The mount pad 2 detachably installs on support 1, and mount pad 2 includes mount pad main part 21 and by the protruding side guard 22 of establishing in the edge of mount pad main part 21, and mount pad main part 21 encloses with side guard 22 and closes and form accommodation space, and the surface of keeping away from side guard 22 of mount pad main part 21 is protruding to be equipped with hollow accommodation portion 23. The output pole busbar 4 is arranged partly in the receiving space and in contact with the end 31 of the insert nut 3, the mounting seat 2 separating the output pole busbar 4 from the bracket 1.
As shown in fig. 8 and 9, the mounting seat main body 21 is a rectangular plate, the side guard plates 22 are formed by protruding three side edges of the mounting seat main body 21, the side guard plates 22 are perpendicular to the surface of the mounting seat main body 21, which is close to the side guard plates 22, and the mounting seat main body 21 and the side guard plates 22 enclose an open accommodating space.
The surface of the mounting seat main body 21 far from the side guard 22 is convexly provided with a hollow accommodating part 23, and the hollow structure in the accommodating part 23 is communicated with the surface of the mounting seat main body 21 near to the side guard 22. The insert nut 3 is fitted in the accommodating portion 23, and a part of the end 31 of the insert nut 3 is exposed from the surface of the mount main body 21 near the side shield 22.
Referring to fig. 4 and 6, the output electrode busbar 4 is bent above the accommodating space and extends into the accommodating space, the portion of the output electrode busbar 4 extending into the accommodating space is partially surrounded by the side guard plate 22 and the mounting seat main body 21, and the mounting seat main body 21 and the side guard plate 22 can separate the output electrode busbar 4 from the bracket 1, so that softening of materials of the bracket 1 caused by temperature rise of the output electrode busbar 4 is avoided.
The surface of the output electrode buss bar 4 near the mount main body 21 is attached to the upper surface of the end 31 of the insert nut 3. The output electrode busbar 4 is in a planar sheet structure at a portion close to the mounting seat main body 21, so that the contact area between the output electrode busbar 4 and the insert nut 3 is increased.
In one embodiment, the material of the bracket is PC+ABS, the material of the mounting seat 2 is PBT+30% GF material, the Vicat softening temperature of the PBT+30% GF material can reach 170 ℃, and the thermal deformation temperature can reach 200 ℃. Compared with PC+ABS materials, the PBT+30% GF materials have better thermal performance, and are not easy to soften under the high-temperature condition, so that the drawing force attenuation of the insert nut caused by the change of the performance of the mounting seat 2 in the temperature rise can be avoided, the shaking of the output electrode bus bar in the whole package vibration process can be avoided, and the risk of detachment of the welding part of the output electrode bus bar and the battery cell is reduced.
In one embodiment, the insert nut 3 is fitted into the mount main body 21 by means of hot pressing.
As shown in connection with fig. 7, the insert nut 3 has a shank 32 connected to the end 31. The end portion 31 is connected to one end of the rod portion 32, and the insert nut 3 has a through hole penetrating the end portion 31 and the rod portion 32 in the axial direction of the insert nut 3.
The circumferential surface of the stem 32 has a plurality of protrusions 321 extending in the radial direction of the stem 32, and the plurality of protrusions 321 are continuously or alternately distributed on the circumferential surface of the stem 32 in the circumferential direction of the stem 32, and a groove is formed between any two adjacent protrusions 321.
In one embodiment, the protrusion 321 has a prismatic shape, and may be, but not limited to, a triangular prism shape or a quadrangular prism shape. The width of the projection 321 gradually decreases from the circumferential surface of the stem 32 in the radial direction of the stem 32 toward the side away from the stem 32.
As shown in fig. 7 and 8, the inner wall of the accommodating portion 23 has a plurality of first profiling grooves 231 disposed in one-to-one correspondence with the protrusions 321, and the shape and size of the first profiling grooves 231 are adapted to those of the protrusions 321, and the protrusions 321 are embedded in the first profiling grooves 231, so as to increase the torsion force of the insert nut 3.
As shown in fig. 6 and 7, the stem 32 has an annular groove 322 recessed in the radial direction of the stem 32, and a plurality of projections 321 are provided on both sides of the annular groove 322, respectively. The inner wall of the accommodating portion 23 has a protruding portion 232 protruding, the protruding portion 232 is an annular protrusion, and the protruding portion 232 is fitted in the annular groove 322, thereby increasing the drawing force of the insert nut 3.
In one embodiment, the stem 32 has only one annular groove 322 recessed in the radial direction of the stem 32.
In one embodiment, the stem 32 may have 2 or more annular grooves 322 concavely formed along the radial direction of the stem 32, and the plurality of annular grooves 322 may be arranged at intervals along the axial direction of the stem 32, and the plurality of protrusions 321 may be respectively disposed between adjacent annular grooves 322 or on a side of the annular groove 322 near or far from the end 31.
In one embodiment, the diameter of the end 31 is greater than the diameter of the stem 32, thereby increasing the contact area of the insert nut 3 with the output pole buss bar 4 by increasing the diameter of the end 31.
In one embodiment, as shown in connection with fig. 6 and 8, the surface of the end 31 that contacts the output electrode buss bar 4 protrudes from the surface of the mount body 21 that is near the output electrode buss bar 4.
Specifically, the mount 2 has a first opening 24 formed on a surface of the mount main body 21 near the output electrode bus bar 4 and a second opening 25 formed in the mount main body 21 and the receiving portion 23, the first opening 24 communicates with the second opening 25, and a diameter of the first opening 24 is larger than a diameter of the second opening 25.
The rod 32 extends into the second opening 25 and is attached to the wall and the bottom of the second opening 25. The surface of the end portion 31 away from the output electrode buss bar 4 is attached to the bottom surface of the first opening 24, the circumferential surface of the end portion 31 is attached to the wall of the first opening 24, and the thickness of the end portion 31 is greater than the depth of the first opening 24, so that the output electrode buss bar 4 can be ensured to be in contact with the insert nut 3.
As shown in fig. 3 and 10, the bracket 1 has a bracket body 11 and a mounting portion 12 protruding from a surface of the bracket body 11 remote from the output electrode bus bar 4, the bracket 1 has a mounting hole 13, the mounting hole 13 penetrates the bracket body 11 and the mounting portion 12, and the receiving portion 23 is fitted in the mounting hole 13.
Further, one of the outer wall of the housing portion 23 and the hole wall of the mounting hole 13 has a plurality of profiling protrusions, and the other has a plurality of second profiling grooves provided in one-to-one correspondence with the profiling protrusions, and the profiling protrusions are fitted in the second profiling grooves.
In one embodiment, as shown in fig. 9, the outer wall of the accommodating portion 23 has a plurality of profiling protrusions 233, the profiling protrusions 233 are disposed to extend along the axial direction of the accommodating portion 23, the plurality of profiling protrusions 233 are distributed on the outer wall of the accommodating portion 23 at intervals along the circumferential direction of the accommodating portion 23, and the number of profiling protrusions 233 may be less than or equal to the number of the first profiling grooves 231.
As shown in fig. 3 and 10, the hole wall of the mounting hole 13 has a plurality of second profiling grooves 131 corresponding to the profiling protrusions 233 one by one, the shape and size of the second profiling grooves 131 are matched with those of the profiling protrusions 233, and the profiling protrusions 233 are embedded in the second profiling grooves 131, so that the mounting seat 2 is prevented from slipping when the bolt is twisted.
In one embodiment, the hole wall of the mounting hole 13 is provided with a plurality of profiling protrusions, the outer wall of the accommodating part 23 is provided with a plurality of second profiling grooves which are arranged in one-to-one correspondence with the profiling protrusions, and the profiling protrusions are embedded in the second profiling grooves, so that the mounting seat 2 can be prevented from slipping when the bolt is twisted.
As shown in fig. 11, the bracket 1 has at least one reinforcing rib 14, and the reinforcing rib 14 is provided between the mounting portion 12 and the bracket body 11 and is connected to the mounting portion 12 and the bracket body 11, respectively, to thereby reinforce the strength of the bracket 11.
In one embodiment, 3 reinforcing ribs 14 may be provided between the mounting portion 12 and the bracket body 11, the 3 reinforcing ribs 14 are distributed at intervals along the circumferential direction of the mounting portion 12, one end of the reinforcing rib 14 is connected to the bracket body 11, the other end is connected to the mounting portion 12, and the mounting base body 21, the mounting portion 12 and the reinforcing rib 14 are integrally injection molded.
In practical applications, the number of the reinforcing ribs 14 may be set according to the strength requirement of the bracket 1, and the number of the reinforcing ribs 14 may be 1, 2 or more, not limited to 3 in the above embodiment.
As shown in fig. 9, a plurality of mount buckles 26 are provided on the surface of the mount main body 21 away from the side guard 22.
In one embodiment, 4 mounting seat buckles 26 are convexly arranged on the surface, away from the side guard 22, of the mounting seat main body 21, the four mounting seat buckles 26 are respectively arranged at four corners of the surface, away from the side guard 22, of the mounting seat main body 21, and the accommodating portion 23 is located in the center of the area surrounded by the four mounting seat buckles 26.
In practical applications, the number of the mount buckles 26 on the mount main body 21 may be set according to practical requirements, and is not limited to 4, 2, or 6 in the above embodiments, which is not limited only.
As shown in fig. 5 and 10, the bracket 1 is provided with a plurality of first openings 15 corresponding to the mounting seat buckles 26 one by one, a boss is arranged on the inner side of the first opening 15, and the mounting seat buckles 26 are clamped with the first openings 15, so that the bracket 1 is convenient to fix and bear the mounting seat 2.
Further, the thickness of the mount clip 26 is greater than or equal to 1 millimeter and less than or equal to 1.5 millimeters.
In one embodiment, the mount clip 26 has a thickness of 1 millimeter. In other embodiments, the thickness of the mount clip 26 is not limited to 1 mm in the above embodiments, but may be, but not limited to, 1.1 mm, 1.3 mm, or 1.5 mm, and only between 1 mm and 1.5 mm is required to ensure the structural strength and elasticity of the mount clip 26.
In one embodiment, the mount main body 21 has a plurality of second openings 27, and the second openings 27 penetrate the mount main body 21 in the thickness direction of the mount main body 21. The second opening 27 is disposed adjacent to the mount clip 26, and the second opening 27 is disposed on a side of the mount clip 26 near the edge of the mount main body 21. By adding a plurality of second openings 27 on the mounting base 2, the weight and the material of the mounting base 2 are reduced, and the die opening cost is reduced.
In one embodiment, the number of second openings 27 on the mount body 21 is the same as the number of mount catches 26, i.e., the mount body 21 has four second openings 27, and one second opening 27 is disposed adjacent to one side of each opening 26 near the edge of the mount body 21.
As shown in fig. 1, the output electrode protection cover 5 is covered on the mounting base 2 and covers the output electrode bus bar 4.
The output electrode protection cover 5 is provided with a plurality of protection cover buckles 51, the side surfaces of the two side protection plates 22 on the two opposite sides of the installation seat main body 21 are respectively provided with a convex hanging lug 28, the hanging lug 28 is provided with an opening 29, a boss is arranged on the inner side of the opening 29, and the protection cover buckles 51 are clamped with the opening 29, so that the installation and the fixation of the output electrode protection cover 5 are facilitated.
As shown in fig. 4 and 10, the bracket 1 has the escape groove 16 provided corresponding to the hanging tab 28, and the hanging tab 28 is installed in the escape groove 16.
The embodiment of the invention also provides a battery pack which comprises a plurality of battery cells and the output electrode base provided by any embodiment.
The invention has the beneficial effects that: according to the invention, the output electrode base comprises a support, a mounting seat, an insert nut and an output electrode busbar, wherein the mounting seat is mounted on the support and comprises a mounting seat main body and a side guard plate convexly arranged on the edge of the mounting seat main body, the mounting seat main body and the side guard plate are enclosed to form a containing space, the surface of the mounting seat main body far away from the side guard plate is convexly provided with a hollow containing part, the insert nut is embedded in the containing part of the mounting seat main body, and the output electrode busbar is partially arranged in the containing space and is contacted with the end part, so that the output electrode busbar is separated from the support by the mounting seat, the insert nut drawing force attenuation caused by softening of the support along with temperature rise is avoided, the shaking of the output electrode busbar in the whole package vibration process is avoided, and the risk of detachment of the output electrode busbar and a battery core welding part is reduced.
The foregoing has outlined rather broadly the more detailed description of embodiments of the invention, wherein the principles and embodiments of the invention are explained in detail using specific examples, the above examples being provided solely to facilitate the understanding of the method and core concepts of the invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present invention, the present description should not be construed as limiting the present invention.

Claims (15)

1. An output pole mount, comprising:
a bracket;
the mounting seat is mounted on the bracket and comprises a mounting seat main body and a side guard plate convexly arranged on the edge of the mounting seat main body, the mounting seat main body and the side guard plate are enclosed to form an accommodating space, and a hollow accommodating part is convexly arranged on the surface, far away from the side guard plate, of the mounting seat main body;
the insert nut is embedded in the accommodating part, and the surface, close to the side guard plate, of the mounting seat main body exposes part of the end part of the insert nut; and
and the output electrode bus bar is partially arranged in the accommodating space and is contacted with the end part, and the mounting seat separates the output electrode bus bar from the bracket.
2. The output pole mount of claim 1, wherein the insert nut has a shank portion connected to the end portion, a circumferential surface of the shank portion has a plurality of protrusions extending in a radial direction of the shank portion, and an inner wall of the receiving portion has a plurality of first profiling grooves provided in one-to-one correspondence with the protrusions, the protrusions being fitted in the first profiling grooves.
3. The output pole mount of claim 2, wherein the shank has an annular groove recessed in a radial direction of the shank, the plurality of projections being provided on both sides of the annular groove, respectively;
the inner wall of the accommodating part is provided with a protruding part which is embedded in the annular groove.
4. The output pole mount of claim 2, wherein the diameter of the end portion is greater than the diameter of the stem portion.
5. The output pole mount of claim 2, wherein the bracket has a bracket body and a mounting portion protruding from a surface of the bracket body remote from the output pole bus bar, the bracket has a mounting hole penetrating the bracket body and the mounting portion, and the receiving portion is fitted in the mounting hole.
6. The output electrode base according to claim 5, wherein one of an outer wall of the receiving portion and a wall of the mounting hole has a plurality of profiling protrusions, and the other has a plurality of second profiling grooves provided in one-to-one correspondence with the profiling protrusions, and the profiling protrusions are fitted in the second profiling grooves.
7. The output pole mount of claim 5, wherein the bracket has at least one stiffening rib disposed between and connected to the mounting portion and the bracket body, respectively.
8. The output pole mount of any of claims 1 to 7, wherein a surface of the end portion that contacts the output pole buss protrudes from a surface of the mount body that is proximate the output pole buss.
9. The output pole mount of claim 8, wherein the mount has a first aperture formed in a surface of the mount body proximate the output pole buss and a second aperture formed in the mount body and the receptacle, the first aperture in communication with the second aperture, the first aperture having a diameter greater than a diameter of the second aperture;
the surface of the end part far away from the output electrode busbar is attached to the bottom surface of the first opening, the circumferential surface of the end part is attached to the wall of the first opening, and the thickness of the end part is larger than the depth of the first opening; the insert nut has a shank connected with the end portion, the shank being inserted into the second aperture and conforming to the aperture wall and bottom surface of the second aperture.
10. The output pole mount of any of claims 1 to 7, wherein the mount body is provided with a plurality of mount catches, the bracket having a plurality of first openings in one-to-one correspondence with the mount catches, the mount catches being engaged with the first openings.
11. The output pole mount of claim 10, wherein the mount clip has a thickness greater than or equal to 1 millimeter and less than or equal to 1.5 millimeters.
12. The output pole mount of claim 10, wherein the mount body has a plurality of second openings disposed adjacent the mount catch.
13. The output pole mount of any of claims 1 to 7, further comprising an output pole protective cover having a plurality of protective cover tabs, the side of the side guard having protruding tabs with openings, the protective cover tabs engaging the openings.
14. The output pole mount of claim 13 wherein the bracket has a relief groove disposed in correspondence with the tab, the tab being mounted in the relief groove.
15. A battery pack comprising the output electrode mount of any one of claims 1 to 14.
CN202310645300.4A 2023-05-31 2023-05-31 Output electrode base and battery pack Pending CN116526047A (en)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310645300.4A CN116526047A (en) 2023-05-31 2023-05-31 Output electrode base and battery pack

Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116799417A (en) * 2023-08-22 2023-09-22 深圳海辰储能控制技术有限公司 Battery module, energy storage system and electric equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116799417A (en) * 2023-08-22 2023-09-22 深圳海辰储能控制技术有限公司 Battery module, energy storage system and electric equipment
CN116799417B (en) * 2023-08-22 2024-01-23 深圳海辰储能控制技术有限公司 Battery module, energy storage system and electric equipment

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