CN113675538B - Busbar support and battery module with same - Google Patents
Busbar support and battery module with same Download PDFInfo
- Publication number
- CN113675538B CN113675538B CN202110952735.4A CN202110952735A CN113675538B CN 113675538 B CN113675538 B CN 113675538B CN 202110952735 A CN202110952735 A CN 202110952735A CN 113675538 B CN113675538 B CN 113675538B
- Authority
- CN
- China
- Prior art keywords
- main frame
- frame body
- bus bar
- busbar
- baffle
- 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.)
- Active
Links
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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
-
- 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
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
-
- 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
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
-
- 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
- H01M50/514—Methods for interconnecting adjacent batteries or cells
- H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
-
- 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
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/588—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
-
- 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
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
- H01M50/593—Spacers; Insulating plates
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a busbar bracket and a battery pack with the same, wherein the busbar bracket comprises: a main frame body and a protection plate for fixing the busbar; the bus bar support is characterized in that the protection plate is arranged on one side of the main frame body in the thickness direction and is connected with the main frame body, the protection plate comprises a baffle plate part, the baffle plate part and the main frame body are spaced apart in the thickness direction of the main frame body, and the bus bar is suitable for being arranged between the main frame body and the baffle plate part.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a busbar bracket and a battery module with the same.
Background
In the related art, in order to improve the endurance mileage of the electric automobile at the present stage, a plurality of new technical schemes are adopted in the industry to improve the energy density of the power battery PACK, such as a CTP scheme, a blade battery scheme and the like, and the battery core directly goes to the PACK (battery PACK) to improve the integration efficiency of the power battery PACK, but some new problems are brought; the power battery pack is used as a high-voltage energy storage device of the electric automobile, and the electric insulation protection is related to the safety and reliability of the power battery pack and even the electric automobile, so that the protection of the bus bars among the electric cores is extremely important.
In the current blade battery scheme, the busbar is fixed by adopting a busbar bracket in a mode of referencing a traditional module, and a PC (Polycarbonate for short) module upper cover is arranged after welding for shielding and protecting, wherein Polycarbonate is a Polycarbonate for short and PC engineering plastic for short. The technical scheme is high in cost and complex in assembly operation.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the busbar support, and the busbar support replaces the insulating sheet at the end part of the module by arranging the protection plate on the main frame body, so that the cost is reduced, the operation procedures are reduced, and the production efficiency is improved.
The invention also provides a battery module with the busbar bracket.
According to a first aspect of the present invention, a bus bar bracket includes: a main frame body for fixing the bus bar; the protection plate is arranged on one side of the main frame body in the thickness direction and is connected with the main frame body, the protection plate comprises a baffle plate portion, the baffle plate portion and the main frame body are spaced apart in the thickness direction of the main frame body, and the busbar is suitable for being arranged between the main frame body and the baffle plate portion.
According to the busbar bracket, the protection plate is arranged on the main bracket body to replace the insulation sheet at the end part of the existing module, so that the cost is reduced, the operation procedures are reduced, and the production efficiency is improved.
In some embodiments, the protection plate further comprises a connecting portion, one end of the connecting portion is connected with the main frame body, the other end of the connecting portion extends away from the main frame body along the thickness direction of the main frame body, the baffle portion is connected with the other end of the connecting portion and is parallel to the main frame body, the connecting portion, the baffle portion and the main frame body are matched to define an accommodating space, and the busbar is located in the accommodating space.
In some embodiments, a side surface of the connection part located in the receiving space is formed with a raised support boss on which the bus bar is adapted to be supported.
In some embodiments, a welding part connected with the pole of the battery module is formed on the busbar, and an avoidance hole penetrating in the thickness direction is formed on the baffle plate part and is opposite to the welding part in the thickness direction of the baffle plate part.
In some embodiments, the baffle portion is spaced from the bus bar by a predetermined distance in a thickness direction of the baffle portion, the predetermined distance being 1mm-2mm.
In some embodiments, the baffle part includes a plurality of baffle parts, and the plurality of baffle parts are spaced apart in a length direction of the main frame body.
In some embodiments, the main frame body is integrally formed with the shielding plate.
In some embodiments, the bus bar is clamped or adhesively connected with the main frame body.
In some embodiments, the main frame body includes: the first rod parts comprise a plurality of first rod parts, and the first rod parts extend along the length direction of the main frame body and are arranged at intervals in parallel in the width direction of the main frame body; the second pole portion, the second pole portion includes a plurality of, a plurality of the second pole portion with a plurality of first pole portion links to each other, and a plurality of the second pole portion is followed the width direction of body frame body extends and is in the length direction of body frame body is parallel and the interval sets up, wherein, the guard plate with a plurality of one of the first pole portion links to each other, and follows the width direction of body frame body orientation with another adjacent one of them first pole portion extends, the busbar is fixed in on the second pole portion.
The battery module according to the second aspect of the invention includes: the battery cells are arranged side by side, and each battery cell is provided with a pole; the busbar bracket is arranged on the plurality of battery cores; the busbar is arranged between the main frame body and the baffle plate part of the busbar bracket, and is fixed on the main frame body and electrically connected with the pole.
According to the battery module, the bus bar bracket of the first aspect is arranged, so that the overall performance of the battery module is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a schematic view of a battery module according to an embodiment of the present invention;
FIG. 2 is a schematic view of the buss bar shown in FIG. 1 mated with a buss bar bracket;
FIG. 3 is a right side view of the buss bar shown in FIG. 2 mated with a buss bar bracket;
fig. 4 is a schematic view of the busbar holder shown in fig. 1.
Reference numerals:
a battery module 100;
a cell 10;
a pole 11;
a busbar 20;
a welding portion 21;
a busbar bracket 30;
a main frame 31;
a first rod portion 311, a second rod portion 312, and a grid hole 313;
a guard plate 32;
the baffle portion 321, the avoidance hole 3211, the connection portion 322, and the support boss 3221.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
First, a battery module 100 according to an embodiment of the second aspect of the present invention will be briefly described with reference to fig. 1, the battery module 100 including: a plurality of cells 10, a bus bar 20 and a bus bar bracket 30 according to an embodiment of the first aspect of the present invention.
As shown in fig. 1, a plurality of battery cells 10 are arranged side by side, each battery cell 10 is provided with a pole 11, a bus bar bracket 30 is arranged at a corresponding position on the poles 11 of the plurality of battery cells 10, and a bus bar 20 is fixed on the bus bar bracket 30 and electrically connected with the poles 11.
A busbar bracket 30 according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1 to 4.
As shown in fig. 4, the bus bar bracket 30 according to the embodiment of the first aspect of the present invention includes: a main frame 31 and a protection plate 32.
Specifically, as shown in fig. 2, the main frame 31 is used for fixing the bus bar 20, and fixing the bus bar 20 at a position corresponding to the pole 11 of the battery cell 10, so as to electrically connect the bus bar 20 with the pole 11 of the battery cell 10, wherein the electrical connection mode can be a welding method, which can ensure the transmission of electrical signals between the bus bar 20 and the pole 11 of the battery cell 10, connect a plurality of battery cells 10 in series, and fix the bus bar 20 and the pole 11 on the battery cell 10 together.
The shielding plate 32 is disposed at one side of the main frame 31 in the thickness direction (e.g., up-down direction shown in fig. 4) and is connected to the main frame 31, the shielding plate 32 may include a shielding plate portion 321, the shielding plate portion 321 is spaced apart from the main frame 31 in the thickness direction of the main frame 31, and the bus bar 20 is adapted to be disposed between the main frame 31 and the shielding plate portion 321, wherein the main frame 31 is to be fixed on the battery cell 10, that is, the main frame 31 is disposed at a side of the bus bar 20 near the battery cell 10, and the shielding plate portion 321 is disposed at a side of the bus bar 20 facing away from the battery cell 10, such that the shielding plate portion 321 avoids direct contact between the bus bar 20 and the battery module case, and replaces an insulation sheet at an end of an existing module, thereby reducing cost and simplifying an assembly process.
As shown in fig. 2, the main frame 31 and the protection plate 32 are insulating plastic parts, the main frame 31 is fixed at corresponding positions on the plurality of electric cores 10 which are orderly arranged, the protection plate 32 is arranged on the main frame 31, the protection plate 32 is connected with one side, away from the electric cores 10, of the main frame 31 in the thickness direction, the baffle plate portion 321 of the protection plate 32 is spaced from the main frame 31 in the thickness direction of the main frame 31, the bus bar 20 is positioned between the main frame 31 and the baffle plate portion 321 and is fixed on the main frame 31, so that the bus bar 20 can be fixed at the corresponding position of the pole 11 of the electric core 10, the bus bar 20 is electrically connected with the pole 11 of the electric core 10 conveniently, the shell of the battery module 100 can be prevented from being directly contacted with the bus bar 20 by the arrangement of the baffle plate portion 321, and effective insulating protection is formed between the bus bar 20 and the shell of the battery module 100, and an insulating sheet at the end of the traditional module is replaced.
According to the busbar support 30 of the embodiment of the invention, the protection plate 32 is arranged on the main frame body 31 to replace an insulating sheet at the end part of the existing module, so that the cost is reduced, the operation procedures are reduced, and the production efficiency is improved.
In one embodiment of the present invention, as shown in fig. 3, the protection plate 32 further includes a connection part 322, one end of the connection part 322 is connected to the main frame 31, the other end extends away from the main frame 31 in the thickness direction of the main frame 31, the baffle part 321 is connected to the other end of the connection part 322 and is disposed parallel to the main frame 31, the connection part 322, the baffle part 321 and the main frame 31 cooperate with each other to define an accommodating space, and the bus bar 20 is positioned in the accommodating space, so that the baffle part 321 and the main frame 31 are connected together through the connection part 322, thereby reducing the number of parts in the battery module 100.
Wherein, the thickness of the baffle plate part is 1mm-1.5mm, thus ensuring that the baffle plate part 321 still has certain toughness under the condition of having certain strength.
Further, as shown in fig. 3, one end of the baffle portion 321 is connected to the connecting portion 322, and the other end is a free end, so that a certain amount of movement and elasticity can be provided, on one hand, the busbar 20 is conveniently and primarily assembled to the main frame 31, difficulty and workload during assembly are reduced, and on the other hand, after the battery module 100 is assembled, the free end of the baffle portion 321 has a certain elasticity, deformation of the housing of the battery module 100 can be ensured, the baffle portion 321 cannot be directly damaged when the baffle portion 321 is extruded, and further the service life of the baffle portion 321 is prolonged, so that the busbar 20 is better protected.
In one embodiment of the present invention, as shown in fig. 3, a raised supporting boss 3221 is formed on a surface of one side (e.g., a front side as shown in fig. 3) of the connecting portion 322 located in the accommodating space, and the bus bar 20 is adapted to be supported on the supporting boss 3221, so that the position of the bus bar 20 is further ensured to be fixed during the welding process, which is further beneficial to improving the welding precision between the bus bar 20 and the post 11 of the battery cell 10 and reducing the reject ratio during the assembly process.
For example, as shown in fig. 3, the bus bar 20 is positioned in the accommodating space, the main frame 31 is connected to the bus bar 20 to restrict the movement of the bus bar 20 in the thickness direction of the main frame 31, a convex support boss 3221 is formed on one side surface of the connecting portion 322 positioned in the accommodating space, and the front surface of the support boss 3221 is provided in a flat surface adapted to be abutted against the bus bar 20, thereby further securing the fixing of the position of the bus bar 20 in the front-rear direction.
In one embodiment of the present invention, as shown in fig. 2, a welding portion 21 for connecting to the post 11 of the battery is formed on the busbar 20, a relief hole 3211 penetrating in the thickness direction (for example, up-down direction shown in fig. 2) is formed on the baffle plate portion 321, and the relief hole 3211 is opposite to the welding portion 21 in the thickness direction of the baffle plate portion 321, that is, in a projection plane perpendicular to the central axis of the relief hole 3211, the projection of the welding portion 21 is located entirely inside the projection of the relief hole. The size of dodging hole 3211 can satisfy the welded space needs between busbar 20 and utmost point post 11, and at welded in-process, directly dodge hole 3211 to busbar 20 weld can, like this, baffle portion 321 can not influence the welding of busbar 20 and utmost point post 11 simultaneously under the circumstances of guaranteeing busbar 20 and battery module 100 shell insulation.
Further, the arrangement of the welding portion 21 is convenient for an assembler to accurately find the welding position in the welding process, so that the welding speed and the welding precision are improved.
In one embodiment of the present invention, as shown in fig. 3, the barrier portion 321 is spaced apart from the bus bar 20 by a predetermined distance of 1mm-2mm in the thickness direction of the barrier portion 321, that is, if the barrier portion 321 is spaced apart from the bus bar 20 by a predetermined distance a (e.g., a shown in fig. 3), the value of a is in the range of 1mm-2mm, wherein the predetermined distance ensures that the barrier portion 321 has a certain activity in the thickness direction of the barrier portion 321, when the barrier portion 321 is pressed by the outside, the barrier portion 321 does not directly apply pressure to the bus bar to cause damage to the bus bar 20, and at the same time, since the barrier portion 321 is made of an insulating plastic material, has a certain elasticity, the barrier portion 321 applies a reaction force to the outside to resist the outside after being pressed by the outside, thereby better protecting the bus bar 20 from the outside, and at the same time better ensuring the insulating effect.
It should be noted that, if the predetermined distance between the barrier portion 321 and the bus bar 20 is less than 1mm in the thickness direction of the barrier portion 321, the assembling work of the bus bar 20 into the accommodating space during the assembling process is not facilitated, and if the predetermined distance between the barrier portion 321 and the bus bar 20 is greater than 2mm, the movable distance of the barrier portion 321 may exceed the receiving range thereof to cause damage to the barrier portion 321 when the barrier portion 321 is excessively pressed by the outside.
Alternatively, in the thickness direction of the barrier portion 321, the predetermined distance between the barrier portion 321 and the busbar 20 may be set to 1mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, and 2.0mm, so that, on one hand, the barrier portion 321 is not easily damaged while protecting the busbar 20, on the other hand, the service life of the barrier portion 321 is prolonged, and on the other hand, a certain distance is left between the barrier portion 321 and the busbar 20, which is favorable for reducing the difficulty of assembly and the workload of assembly.
Preferably, in a specific embodiment, the predetermined distance between the barrier portion 321 and the bus bar 20 in the thickness direction of the barrier portion 321 may be set to 1.6mm, which allows a certain assembly error, reduces the assembly workload, ensures the protection of the bus bar 20 by the barrier portion 321, and avoids damage to the barrier portion 321 due to an excessive moving distance in the thickness direction of the barrier portion 321.
In one embodiment of the present invention, as shown in fig. 4, the barrier sections 321 include a plurality of barrier sections 321 spaced apart in the longitudinal direction (e.g., the left-right direction in fig. 4) of the main frame 31, wherein the number of barrier sections 321 is determined by the number of the bus bars 20, each bus bar 20 has two welding sections 21, and each welding section 21 corresponds to one barrier section 321, so that the number of barrier sections 321 is twice that of the bus bars 20, for example, as shown in fig. 1, the number of bus bars 20 is 5, and the number of barrier sections 321 is 10, so that the bus bars 20 can be completely protected from the outside, thereby replacing the insulating sheets at the ends of the modules in the prior art.
In one embodiment of the present invention, as shown in fig. 4, the main frame 31 is integrally formed with the shielding plate 32, so that the number of parts in the battery module 100 can be reduced, the number of assembly steps can be reduced, and thus, the cost can be reduced.
For example, as shown in fig. 2, the main frame 31 and the protection plate 32 are integrally formed, in the assembling process, only the integrally formed busbar support 30 is required to be fixed at the corresponding position on the battery cell 10, then the busbar 20 is fixed in the busbar support 30, and the busbar 20 and the pole 11 of the battery cell 10 are welded, so that the steps are simple, the assembling workload is reduced, and the production efficiency is improved.
In one embodiment of the present invention, as shown in fig. 2, the bus bar 20 is clamped or adhesively connected to the main frame 31, so as to fix the bus bar 20 on the main frame 31, thereby facilitating welding.
Further, as shown in fig. 2, the bus bar 20 is adhered to the main frame 31, and the adhesion manner can ensure that the bus bar 20 is fixed on the main frame 31, and meanwhile, the adhesion cost is relatively low, which is beneficial to reducing the cost.
In one embodiment of the present invention, as shown in fig. 4, the main frame 31 may include a first lever 311 and a second lever 312. Specifically, the first rod portion 311 includes a plurality of first rod portions 311 extending along a length direction of the main frame 31 and arranged at intervals in parallel in a width direction (e.g., a front-rear direction shown in fig. 1) of the main frame 31, wherein the length of the first rod portions 311 is determined by thicknesses of the plurality of electric cells 10 in a regular arrangement, and the plurality of first rod portions 311 are arranged at intervals in parallel in the width direction of the main frame 31, which is beneficial to increasing a reference object for positioning the main frame 31 in the width direction, so that positioning of the main frame 31 in the width direction is more accurate.
The second pole portion 312 includes a plurality ofly, and a plurality of second pole portions 312 link to each other with a plurality of first pole portions 311, and a plurality of second pole portions 312 extend and set up in parallel and the interval in the length direction of body support 31 along the width direction of body support 31, set up a plurality of second pole portions 312 in parallel and the interval in the length direction of body support 31, be favorable to increasing the reference thing of body support 31 in length direction location for body support 31 is more accurate in length direction's location, and a plurality of first pole portions 311 link to each other the cooperation with a plurality of second pole portions 312 can improve the support body simultaneously in width direction and length direction's positioning accuracy.
Wherein the shielding plate 32 is connected to one of the plurality of first bars 311 and extends toward the other first bar 311 adjacent to the one first bar 311 in the width direction of the main frame 31, and the bus bar 20 is fixed to the second bar 312.
For example, as shown in fig. 4, the main frame 31 includes 3 first rods 311 and 11 second rods 312,3 extending along the left-right direction of the main frame 31 and arranged at intervals in parallel with the front-rear direction of the main frame 31, the first rods 311 located at the middle position in the front-rear direction of the main frame 31 are connected with the guard plates 32, the guard plates 32 extend along the main frame 31 from the rear to the front direction, the first rods 311 located at the rearmost of the main frame 31 are overlapped with the edges of the battery cell 10 module, positioning is facilitated, the 11 second rods 312 extend along the front-rear direction of the main frame 31 and are arranged in parallel with and at intervals from the left-right direction of the main frame 31, the second rods 312 and the grids formed by the two first rods 311 located in front define 10 grid holes 313, the poles 11 of the battery cell 10 are located in the grid holes 313, the second rods 312 of every other second rod 312 are fixed with the bus bars 20, and the first second rods 312 are not fixed with the bus bars 20, so that the front ends of the battery cell 10 module is accurately isolated from the bus bars 20 corresponding to the outside of the battery cell module, and all the bus bars 32 are isolated from the outside.
The battery module 100 according to the second aspect of the embodiment of the present invention may include the bus bar holder 30, the plurality of battery cells 10, and the bus bar 20 according to the above-described first aspect of the embodiment of the present invention.
Specifically, as shown in fig. 1, a plurality of electric cells 10 are arranged side by side, each electric cell 10 is provided with a pole 11, a bus bar bracket 30 is arranged on the plurality of electric cells 10, a bus bar 20 is arranged between a main frame 31 and a baffle plate portion 321 of the bus bar bracket 30, and the bus bar 20 is fixed on the main frame 31 and connected with the pole 11.
According to the battery module 100 of the embodiment of the present invention, by providing the bus bar holder 30 of the embodiment of the first aspect described above, the overall performance of the battery module 100 is improved.
A bus bar bracket 30 according to an embodiment of the present invention will be described with reference to fig. 1 to 4.
Referring to fig. 2 and 4, the bus bar bracket 30 of the embodiment of the present invention may include: the protection plate 32 and the main frame 31 for fixing the busbar 20, the protection plate 32 is arranged on the upper side of the main frame 31 and is connected with the main frame 31.
The shielding plate 32 may include a shielding plate portion 321 and a connection portion 322, the shielding plate portion 321 is spaced apart from the main frame 31 in an up-down direction of the main frame 31, one end of the connection portion 322 is connected with the main frame 31 and the other end extends away from the main frame 31 in the up-down direction of the main frame 31, the shielding plate portion 321 is connected with the other end of the connection portion 322 and is disposed substantially parallel to the main frame 31, the connection portion 322, the shielding plate portion 321 and the main frame 31 cooperate to define an accommodating space, and the busbar 20 is located in the accommodating space.
The front side surface of the connection portion 322 is formed with a raised support boss 3221, and the bus bar 20 is adapted to be supported on the support boss 3221.
The baffle plate 321 is provided with a relief hole 3211 corresponding to the welded portion 21 on the bus bar 20, the relief hole 3211 is opposite to the welded portion 21 in the vertical direction of the baffle plate, the baffle plate 321 is spaced apart from the bus bar 20 by a predetermined distance of 1-2mm in the vertical direction, the baffle plate 321 includes a plurality of baffle plate portions 321, and the plurality of baffle plate portions 321 are arranged at intervals in the left-right direction of the main frame 31.
The main frame 31 may include: 3 first bars 311 and 11 second bars 312.
The first lever portions 311 extend in the left-right direction of the main frame 31 and are arranged at intervals in parallel in the front-rear direction of the main frame 31; the second rod portions 312 are connected to the first rod portions 311, the second rod portions 312 extend in the front-rear direction of the main frame body 31 and are arranged in parallel and at intervals in the left-right direction of the main frame body 31, the protection plates 32 are connected to the first rod portions 311 located at intermediate positions in the front-rear direction of the main frame body 31 and extend toward the forefront first rod portions 311 in the front-rear direction of the main frame body 31, the second rod portions 312 and grids formed by the two first rod portions 311 located in the front define 10 grid holes 313, the poles 11 of the battery cells 10 are located in the grid holes 313, the bus bars 20 are fixed to the second rod portions 312 of every second rod portion 312 from left to right, and the bus bars 20 are not fixed to the first second rod portions 312.
As shown in fig. 1, in the assembly process, only the busbar support 30 is required to be fixed at a corresponding position on the module of the battery cell 10, then the busbar 20 is fixed to the second rod portion 312 of the corresponding main frame 31, after the positions of the busbar support 30 and the busbar 20 are determined, the busbar 20 and the pole 11 of the battery cell 10 are welded through the avoidance hole 3211 on the baffle portion 321, and the busbar 20 is fixed to the corresponding pole 11, so that the assembly process is completed.
According to the busbar support 30 of the embodiment of the invention, the protection plate 32 is arranged on the main frame body 31 to replace an insulating sheet at the end part of the existing module, so that the cost is reduced, the operation procedures are reduced, and the production efficiency is improved.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (8)
1. A busbar bracket, the bracket comprising:
a main frame body for fixing the bus bar;
the protection plate is arranged on one side of the main frame body in the thickness direction and is connected with the main frame body, the main frame body and the protection plate are all insulating plastic parts, the protection plate comprises a baffle plate part, the baffle plate part and the main frame body are spaced apart in the thickness direction of the main frame body, and the bus is suitable for being arranged between the main frame body and the baffle plate part;
the protection plate further comprises a connecting part, one end of the connecting part is connected with the main frame body, the other end of the connecting part extends away from the main frame body along the thickness direction of the main frame body, the baffle plate part is connected with the other end of the connecting part and is parallel to the main frame body, the connecting part, the baffle plate part and the main frame body are matched to define an accommodating space, and the bus bar is positioned in the accommodating space;
the busbar is provided with a welding part connected with a pole of a battery, the baffle plate part is provided with an avoidance hole penetrating in the thickness direction, and the avoidance hole is opposite to the welding part in the thickness direction of the baffle plate part.
2. The bus bar bracket according to claim 1, wherein a side surface of the connection portion located in the receiving space is formed with a raised support boss on which the bus bar is adapted to be supported.
3. The bus bar bracket according to claim 1, wherein the baffle portion is spaced apart from the bus bar by a predetermined distance in a thickness direction of the baffle portion, the predetermined distance being 1mm to 2mm.
4. The busbar bracket of any one of claims 1 to 3, wherein the baffle portion includes a plurality of baffle portions, the plurality of baffle portions being disposed at intervals in a longitudinal direction of the main frame body.
5. A busbar support according to any one of claims 1 to 3, wherein the main frame body is integrally formed with the shielding plate.
6. A busbar bracket according to any one of claims 1 to 3, wherein the busbar is clamped or adhesively connected to the main frame body.
7. A busbar bracket according to any one of claims 1 to 3, wherein the main frame body includes:
the first rod parts comprise a plurality of first rod parts, and the first rod parts extend along the length direction of the main frame body and are arranged at intervals in parallel in the width direction of the main frame body;
the second rod parts comprise a plurality of second rod parts, the second rod parts are connected with the first rod parts, the second rod parts extend along the width direction of the main frame body and are arranged in parallel and at intervals in the length direction of the main frame body,
the protection plate is connected with one of the first rod parts, extends towards the other first rod part adjacent to the first rod part along the width direction of the main frame body, and is fixed on the second rod part.
8. A battery module, comprising:
the battery cells are arranged side by side, and each battery cell is provided with a pole;
the bus bar bracket according to any one of claims 1 to 7, provided on a plurality of the battery cells;
the busbar is arranged between the main frame body and the baffle plate part of the busbar bracket, and is fixed on the main frame body and electrically connected with the pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110952735.4A CN113675538B (en) | 2021-08-19 | 2021-08-19 | Busbar support and battery module with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110952735.4A CN113675538B (en) | 2021-08-19 | 2021-08-19 | Busbar support and battery module with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113675538A CN113675538A (en) | 2021-11-19 |
| CN113675538B true CN113675538B (en) | 2023-07-21 |
Family
ID=78543746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110952735.4A Active CN113675538B (en) | 2021-08-19 | 2021-08-19 | Busbar support and battery module with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113675538B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN216928843U (en) * | 2022-01-19 | 2022-07-08 | 湖北亿纬动力有限公司 | Aluminum bar fixing support and battery pack |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH702863A1 (en) * | 2010-03-30 | 2011-09-30 | Multi Holding Ag | Connecting element for switching electrical contact between two bus bars utilized as firm electrical conductor elements in vehicle i.e. automobile, has contact element dividing interior part of housing into two retaining spaces |
| CN111653708A (en) * | 2020-06-29 | 2020-09-11 | 珠海冠宇动力电池有限公司 | Busbar and battery module |
| WO2021129523A1 (en) * | 2019-12-24 | 2021-07-01 | 蜂巢能源科技有限公司 | Traction battery, busbar component of traction battery and method for processing busbar component |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6085589B2 (en) * | 2014-12-15 | 2017-02-22 | 矢崎総業株式会社 | Battery wiring module |
| CN107403889B (en) * | 2016-05-20 | 2020-06-30 | 莫列斯有限公司 | Battery connection module |
| CN205900680U (en) * | 2016-08-18 | 2017-01-18 | 宁德时代新能源科技股份有限公司 | Structure of converging and battery module |
| CN208970872U (en) * | 2018-12-14 | 2019-06-11 | 蜂巢能源科技有限公司 | Busbar connector mounting bracket and battery modules |
| JP7063867B2 (en) * | 2019-10-25 | 2022-05-09 | 矢崎総業株式会社 | Busbar protector |
| CN111293265B (en) * | 2020-02-24 | 2023-03-03 | 湖北亿纬动力有限公司 | Busbar electrical isolation assembly and battery |
-
2021
- 2021-08-19 CN CN202110952735.4A patent/CN113675538B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH702863A1 (en) * | 2010-03-30 | 2011-09-30 | Multi Holding Ag | Connecting element for switching electrical contact between two bus bars utilized as firm electrical conductor elements in vehicle i.e. automobile, has contact element dividing interior part of housing into two retaining spaces |
| WO2021129523A1 (en) * | 2019-12-24 | 2021-07-01 | 蜂巢能源科技有限公司 | Traction battery, busbar component of traction battery and method for processing busbar component |
| CN111653708A (en) * | 2020-06-29 | 2020-09-11 | 珠海冠宇动力电池有限公司 | Busbar and battery module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113675538A (en) | 2021-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101106544B1 (en) | Cell cartridge | |
| EP2492990B1 (en) | Means for mounting a battery module | |
| JP6507136B2 (en) | Battery pack | |
| US20220069397A1 (en) | Energy storage module and assembly method | |
| EP1450422A1 (en) | BATTERY CONNECTION STRUCTURE, BATTERY MODULE, AND BATTERY PACK | |
| JP5137354B2 (en) | Power supply | |
| CN111406329B (en) | Battery pack including connection plate, electronic device including battery pack, and vehicle | |
| EP2109906A2 (en) | Buss bar for batteries | |
| CN216354581U (en) | Battery cell module of battery pack and battery pack | |
| CN113675538B (en) | Busbar support and battery module with same | |
| CN113725548A (en) | Battery pack | |
| CN116097517B (en) | Battery, electric equipment and preparation method of battery | |
| EP3930084B1 (en) | Connection assembly, battery module, battery pack, device, and manufacturing method | |
| US20180013167A1 (en) | Battery cell and battery system | |
| JP5602509B2 (en) | Power storage device | |
| CN111164789B (en) | Battery pack | |
| AU2022428445A1 (en) | Voltage acquisition structure, and battery module having voltage acquisition structure | |
| CN212907959U (en) | Battery module and electric automobile | |
| CN210668518U (en) | Battery module and electric automobile | |
| CN211828998U (en) | Bus bar for battery module and battery assembly thereof | |
| US20170222289A1 (en) | Assembly module comprising electrochemical cells received by lugs and connecting clips | |
| CN220797011U (en) | Battery cell connecting sheet, battery pack and electricity utilization device | |
| CN221828089U (en) | Electrical connection device, battery and electric equipment | |
| CN214280138U (en) | Reliable support structure for radial fixation of cylindrical battery cell | |
| US20230246303A1 (en) | Electricity storage module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |