CN116544621A - Gather integrated component and battery package - Google Patents

Gather integrated component and battery package Download PDF

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Publication number
CN116544621A
CN116544621A CN202310599300.5A CN202310599300A CN116544621A CN 116544621 A CN116544621 A CN 116544621A CN 202310599300 A CN202310599300 A CN 202310599300A CN 116544621 A CN116544621 A CN 116544621A
Authority
CN
China
Prior art keywords
sampling chip
hole
harness isolation
busbar
positioning holes
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
CN202310599300.5A
Other languages
Chinese (zh)
Inventor
滕效富
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 CN202310599300.5A priority Critical patent/CN116544621A/en
Publication of CN116544621A publication Critical patent/CN116544621A/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
    • H01M50/50—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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/519—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising printed circuit boards [PCB]
    • 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
    • H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • 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)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The invention provides an acquisition integrated component and a battery pack; the collecting and integrating assembly comprises a wire harness isolation plate, and a busbar, a flexible circuit board and a sampling chip which are arranged on the wire harness isolation plate, wherein the busbar comprises a plurality of busbar groups, and each busbar group comprises a plurality of busbar units; the flexible circuit board comprises a plurality of transmission bars arranged between a plurality of adjacent bus units, the sampling chip is arranged between two adjacent bus groups, and the sampling chip is electrically connected with the transmission bars; according to the battery management module, the sampling chip electrically connected with the transmission bars is arranged between the bus groups, so that the cluster plates of the battery management module are integrated in the collection integrated assembly, working data of the battery cells can be directly transmitted to the sampling chip through the transmission bars, the arrangement of the switching wire harness is removed, and the technical problem that more switching wire harnesses cannot be arranged due to space limitation is solved.

Description

Gather integrated component and battery package
Technical Field
The invention relates to the technical field of batteries, in particular to an acquisition integrated component and a battery pack.
Background
Power cells are widely used in industries such as electric vehicles, and in order to ensure that the power cells can operate within a predetermined voltage range and temperature range, the state of each battery cell in a battery module needs to be collected, for example, a voltage signal, a temperature signal, and the like.
In the related art, data signals collected by CCS (Cells Contact System, integrated busbar) assemblies in square power batteries, such as voltage data and temperature data of electric cells, need to be transmitted to a battery management module (Battery Management System, BMS) through a high-cost switching harness, and the internal space of the battery module is limited, so that more switching harnesses cannot be arranged.
Therefore, there is a need to design an acquisition integrated component and a battery pack to solve the above technical problems.
Disclosure of Invention
The embodiment of the invention provides an acquisition integrated component and a battery pack, which can solve the technical problem that the acquisition integrated component in the existing power battery cannot be provided with more switching wire harnesses due to limited space.
In a first aspect, embodiments of the present invention provide an acquisition integration assembly comprising:
a harness isolation plate;
a busbar disposed on the harness isolation board, the busbar including a plurality of busbar groups arranged along a length direction of the harness isolation board, each of the busbar groups including a plurality of busbar units arranged along a width direction of the harness isolation board;
the flexible circuit board is arranged on the wire harness isolation board and comprises a plurality of transmission bars arranged along the width direction of the wire harness isolation board, and the transmission bars are arranged between two adjacent bus units; and
the sampling chip is arranged on the wiring harness isolation plate and between two adjacent bus groups, the sampling chip is electrically connected with the transmission strip, and the sampling chip is used for collecting working data of the target battery cell.
In one embodiment, the transmission strip includes a first transmission portion and a second transmission portion that are separately disposed, the first transmission portion being electrically connected to the first end of the sampling chip, and the second transmission portion being electrically connected to the second end of the sampling chip.
In one embodiment, the collection integration assembly further comprises a plurality of positioning posts and a base disposed on the harness isolation plate, the base disposed between the sampling chip and the harness isolation plate;
the base is provided with a plurality of first positioning holes, one first positioning hole corresponds to one positioning column, and the plurality of first positioning holes are sleeved on the plurality of first positioning holes.
In one embodiment, the collection integration assembly further comprises a protective member disposed on the sampling chip, an orthographic projection of the sampling chip on the protective member being located within the protective member.
In one embodiment, the sampling chip is provided with a plurality of second positioning holes, and the protection component is provided with a plurality of third positioning holes;
the center points of the first positioning holes, the second positioning holes and the third positioning holes are on the same straight line, and the second positioning holes and the third positioning holes are sleeved on the positioning columns.
In one embodiment, the harness isolation plate is provided with a plurality of first through holes, and the first through holes are positioned among the plurality of bus groups;
the base comprises a base plate and a bulge arranged on the base plate, a second through hole is formed in the bulge, a third through hole is formed in the sampling chip, a fourth through hole is formed in the protecting component, the centers of the first through hole, the second through hole, the third through hole and the fourth through hole are located on the same straight line, the sampling chip is sleeved on the bulge through the third through hole, and the protecting component is sleeved on the bulge through the fourth through hole.
In one embodiment, the second through hole has an inner diameter less than or equal to the inner diameter of the first through hole.
In one embodiment, the sum of the thicknesses of the protective member and the sampling chip is smaller than the height of the bump.
In one embodiment, the protective member and the base are composed of a high temperature resistant insulating material.
In a second aspect, embodiments of the present invention provide a battery pack including the above-described collection assembly.
The embodiment of the invention has the beneficial effects that:
the invention provides an acquisition integrated component and a battery pack; the collecting and integrating assembly comprises a wire harness isolation plate, and a busbar, a flexible circuit board and a sampling chip which are arranged on the wire harness isolation plate, wherein the busbar comprises a plurality of busbar groups, and each busbar group comprises a plurality of busbar units; the flexible circuit board comprises a plurality of transmission bars arranged between a plurality of adjacent bus units, the sampling chip is arranged between two adjacent bus groups, and the sampling chip is electrically connected with the transmission bars; this application is through setting up the sampling chip of being connected with the transmission strip electricity between the collection flow group to with battery management module's cluster board integration in gathering the integrated component, make the work data of electric core can be through transmission strip direct transmission to sampling chip, got rid of the setting of switching pencil, in reduce cost, solved the technical problem that can't arrange more switching pencil because of the space restriction.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of an acquisition integration assembly provided by an embodiment of the present invention;
FIG. 2 is an exploded view of an acquisition integration assembly provided by an embodiment of the present invention;
FIG. 3 is a diagram of a connection between a transmission bar and a collection chip in a collection integration assembly according to an embodiment of the invention;
FIG. 4 is an exploded view of region A of FIG. 1 provided by an embodiment of the present invention;
fig. 5 is a cross-sectional view of region a of fig. 1 provided by an embodiment of the present invention.
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.
In the related art, data signals collected by CCS components in square power batteries, such as voltage data and temperature data of battery cells, need to be transmitted to the BMS through a switching harness with higher cost, and the internal space of the battery module is limited, so that more switching harnesses cannot be arranged. The following provides an acquisition integrated assembly and a battery pack according to the technical problems to solve the technical problems.
Referring to fig. 1 to 5, an acquisition integrated module 100 is provided according to an embodiment of the present invention, and includes a harness isolation board 10, a bus bar 20, a flexible circuit board 30, and a sampling chip 40.
In the present embodiment, the bus bar 20 is disposed on the harness isolation board 10, the bus bar 20 includes a plurality of bus groups 210 arranged along a length direction of the harness isolation board 10, and each of the bus groups 210 includes a plurality of bus units 211 arranged along a width direction of the harness isolation board 10.
In this embodiment, the flexible circuit board 30 is disposed on the harness isolation board 10, and the flexible circuit board 30 includes a plurality of transmission bars 310 arranged along the width direction of the harness isolation board 10, the transmission bars being disposed between two adjacent bus units 211.
In this embodiment, the sampling chip 40 is disposed on the harness isolation board 10 and between two adjacent bus groups 210, the sampling chip 40 is electrically connected to the transmission bar, and the sampling chip 40 is used for collecting working data of the target battery cell.
The invention provides an acquisition integrated component 100 and a battery pack; the collection assembly 100 includes a harness isolation board 10, and a bus bar 20, a flexible circuit board 30, and a sampling chip 40 disposed on the harness isolation board 10, the bus bar 20 including a plurality of bus groups 210, each bus group 210 including a plurality of bus units 211; the flexible circuit board 30 includes a plurality of transmission bars disposed between adjacent bus units 211, the sampling chip 40 is disposed between adjacent bus groups 210, and the sampling chip 40 is electrically connected to the transmission bars; this application is through setting up the sampling chip 40 of being connected with the transmission strip electricity between the collection flow group 210 to with battery management module's cluster board integration in gathering integrated component 100, make the work data of electric core can be through the transmission strip direct transmission to sampling chip 40, got rid of the setting of switching pencil, solved because of the space restriction can't arrange the technical problem of more switching pencil.
It should be noted that, the collection assembly 100 may be integrated in an upper cover plate of the battery pack, the collection assembly 100 is mainly used for collecting working data, such as temperature data and voltage data, of the battery cells in the battery module, so as to detect the working state of the battery cells in real time, and the sampling chip 40 may directly receive the collected working data.
It should be noted that, the collection assembly 100 may further include a voltage collection unit and a temperature collection unit disposed on the harness isolation board 10, where the voltage collection unit and the temperature collection unit are respectively electrically connected to the corresponding convergence unit 211, the voltage collection unit may collect and transmit voltage data of the battery cell, and the temperature collection unit may collect and transmit temperature data of the battery cell.
The wire harness isolation board 10 may be formed by injection molding of a plastic member, and the material of the wire harness isolation board 10 may be PC, PVC, PP.
It should be noted that, the busbar 20, the flexible circuit board 30 and the sampling chip 40 may be disposed on a first side of the harness isolation board 10, and the other side of the harness isolation board 10 may be abutted against a plurality of electric cells in the battery module. Meanwhile, the harness isolation plate 10 also serves to support the bus bar 20 and provide support strength to the entire collection assembly 100.
It should be noted that, the arrangement and the number of the bus units 211 in each bus group 210 are the same, and each bus group 210 may include two rows of bus units 211, where the number of the bus units 211 in each row is the same; for example, in the structure of fig. 1, 5 bus groups 210 are disposed on the bus 20, each bus group 210 may include 4 bus units 211 arranged in a 2X2 arrangement, and the structure in fig. 1 may be only a part of the collection assembly 100, for example, the complete collection assembly 100 may be formed by a plurality of structures in fig. 1, where a specific number is defined according to the number of electric cells.
It should be noted that, the flexible circuit board 30 may include a plurality of transmission bars, each transmission bar is electrically connected to two adjacent bus units 211, and one bus unit 211 is electrically connected to only one transmission bar; for example, in the structure of fig. 1, the structure of fig. 1 is only a part of the complete collection assembly 100, so fig. 1 shows only 1 transmission bar, which can be electrically connected to 4 of the bus units 211 in one of the bus groups 210.
The collecting and integrating assembly 100 is further provided with an output row, the output row is mounted on the harness isolation board 10, and the output row is electrically connected with the busbar 20. The output bar in this embodiment may be a copper-aluminum composite bar, where the copper-aluminum composite bar is an output electrode, and is mainly characterized in that the copper bar and the aluminum bar are respectively nickel-plated and are welded together by high polymer diffusion or ultrasonic welding, the aluminum bar may be designed with a hot riveting hole connected with the wire harness isolation board 10, the copper bar may be designed with a mounting hole, and connected with the output electrode base 50 and the battery module by a bolt, the copper bar may be made of T2 red copper, and the aluminum bar may be made of AL1060-O.
It should be noted that, the busbar 20 is a serial aluminum busbar, the busbar 20 can be connected with the battery cell by means of laser welding, and can conduct the current of the battery module, and the material of the busbar 20 can be AL1060-O.
The technical scheme of the present application is described below according to specific embodiments.
Referring to fig. 2 and 3, the transmission strip includes a first transmission portion 311 and a second transmission portion 312 that are separately disposed, the first transmission portion 311 is electrically connected to the first end of the sampling chip 40, and the second transmission portion 312 is electrically connected to the second end of the sampling chip 40. The first transmission part 311 is located in the first area 110 of the collection assembly 100, the first transmission part 311 may be electrically connected to the bus unit 211 in the first area 110, the second transmission part 312 is located in the second area 120 of the collection assembly 100, the second transmission part 312 may be electrically connected to the bus unit 211 in the second area 120, the first transmission part 311 may transmit temperature data and voltage data collected in the first area 110 to the sampling chip 40, and the second transmission part 312 may transmit temperature data and voltage data collected in the second area 120 to the sampling chip 40.
In this embodiment, referring to fig. 3, the ends of the first transmission portion 311 and the second transmission portion 312 are respectively provided with a gold finger 313, the ends of the sampling chip 40 corresponding to the first transmission portion 311 and the second transmission portion 312 are respectively provided with an electrical connection port corresponding to the gold finger 313, and the first transmission portion 311 and the second transmission portion 312 are electrically connected with the sampling chip 40 through the corresponding gold finger 313 and electrical connection ports.
In this embodiment, the sampling chips 40 electrically connected with the transmission bars are disposed between the bus groups 210, and the first transmission portions 311 and the second transmission portions 312 that are disposed separately directly transmit the working data of the electric cores in different areas to the sampling chips 40, so that the arrangement of the switching wire harness is removed, and the technical problem that more switching wire harnesses cannot be disposed due to space limitation is solved while the cost is reduced.
Since the wire harness isolation board 10 is made of plastic, the plastic has poor heat insulation, and when the battery cell is out of control, heat may be transferred to the sampling chip 40 through the plastic, resulting in abnormality of the sampling chip 40.
Referring to fig. 2, 4 and 5, the collecting and integrating assembly 100 further includes a base 50 disposed on the harness isolation board 10, and the base 50 is disposed between the sampling chip 40 and the harness isolation board 10.
In this embodiment, the base 50 may be made of a high temperature resistant insulating material, and the heat transferred from the electrical core to the wire harness isolation board 10 may be isolated by the base 50, so as to avoid high temperature transfer to the sampling chip 40.
In this embodiment, the collecting and integrating assembly 100 further includes a plurality of positioning posts 60 disposed on the harness isolation board 10, and a plurality of the positioning posts 60 are disposed between two adjacent bus groups 210; meanwhile, the base 50 is provided with a plurality of first positioning holes 611, one first positioning hole 611 corresponds to one positioning column 60, and a plurality of first positioning holes 611 are sleeved on a plurality of positioning columns 60.
Referring to fig. 2 and 4, the harness isolation board 10 may be provided with 5 positioning columns 60, the connecting lines of the four peripheral positioning columns 60 are rectangular, and the 5 th positioning column 60 is located at the center point of the rectangle; meanwhile, the base 50 is also provided with 5 first positioning holes 611 corresponding to the 5 positioning posts 60, and the 5 first positioning holes 611 are sleeved on the 5 positioning posts 60, so as to position the base 50 on the harness isolation board 10.
Referring to fig. 2 and 4, the sampling chip 40 may be provided with a plurality of second positioning holes 612, where one second positioning hole 612 corresponds to one first positioning hole 611, and the center points of the first positioning hole 611 and the second positioning hole 612 are on the same straight line; for example, in the structure of fig. 1, 5 second positioning holes 612 may be provided on the sampling chip 40, and 5 second positioning holes 612 are sleeved on 5 positioning posts 60, so as to position the sampling chip 40 on the base 50.
In the related art, the battery cell needs a corresponding air release channel to release the air flow overflowed when the explosion-proof valve of the battery cell is opened, so as to ensure the normal operation of the battery cell; when the battery cell is out of control, various metal substances possibly carried along with the air flow when the explosion-proof valve of the battery cell is opened can splash onto the busbar 20, so that the series battery cells are short-circuited.
Referring to fig. 1 and 2, the harness isolation board 10 may be provided with a plurality of first through holes 621, the plurality of first through holes 621 are located between the plurality of bus groups 210, and the first through holes 621 are used for releasing air flow overflowed when the explosion-proof valve of the electric core is opened; however, the air flow overflowing from the first through hole 621 may carry metal substances and splash onto the sampling chip 40, resulting in abnormality of the sampling chip 40; thus in the configuration of fig. 1, the collection assembly 100 further includes a protective member 70 disposed on the sampling chip 40.
In this embodiment, the protective member 70 may be composed of an insulating material resistant to high temperatures.
In this embodiment, the orthographic projection of the sampling chip 40 on the protection member 70 is located in the protection member 70, that is, the area of the sampling chip 40 may be smaller than or equal to the area of the protection member 70, so that the protection member 70 completely covers the sampling chip 40, and avoids the metal substances carried along with the airflow from sputtering onto the sampling chip 40; referring to fig. 4 and 5, the protecting member 70 has a cavity therein for accommodating the sampling chip 40, and the protecting member 70 and the base 50 cooperate to fully encapsulate the sampling chip 40.
In this embodiment, referring to fig. 2, the protection member 70 is provided with a plurality of third positioning holes 613, the center points of the first positioning holes 611, the second positioning holes 612 and the third positioning holes 613 are on the same straight line, and one third positioning hole 613 corresponds to one second positioning hole 612; for example, in the structure of fig. 1, 5 third positioning holes 613 may be provided on the protection member 70, and 5 third positioning holes 613 are sleeved on 5 positioning posts 60, so as to position the alarm member on the sampling chip 40, so as to protect the sampling chip 40.
In the structures of fig. 1 and 2, a double-sided adhesive tape or other adhesive layers may be provided between the protection member 70, the sampling chip 40, the base 50 and the harness isolation board 10 for fixing, which is not limited in this embodiment.
In this embodiment, referring to fig. 4, the base 50 may include a bottom plate 510 and a protrusion 520 disposed on the bottom plate 510, where a second through hole 622 is disposed on the protrusion 520; since the harness isolation board 10 is provided with the first through hole 621 for releasing the air flow, in order to provide the space for avoiding the air flow emitted by the battery cell when the valve is opened, the second through hole 622 may be provided on the base 50, the first through hole 621 may correspond to the second through hole 622, and the air flow released by the battery cell may be led out through the first through hole 621 and the second through hole 622.
In this embodiment, since the sampling chip 40 and the protection member 70 are disposed on the base 50, a third through hole 623 may be disposed on the sampling chip 40, a fourth through hole 624 may be disposed on the protection member 70, and the centers of the first through hole 621, the second through hole 622, the third through hole 623 and the fourth through hole 624 are located on the same straight line, and a circulation channel formed by the first through hole 621, the second through hole 622, the third through hole 623 and the fourth through hole 624 is used for circulation of an air flow released by the battery cell when the valve is opened; for example, in the structure of fig. 1, the number of the first through hole 621, the second through hole 622, the third through hole 623 and the fourth through hole 624 is two, and the first through hole 621, the second through hole 622, the third through hole 623 and the fourth through hole 624 are uniformly corresponding to each other.
In this embodiment, since the air flow released from the battery cell carries the metal substance, when the air flow passes through the third through hole 623, there may be sputtering of the metal substance to the side of the third through hole 623, resulting in abnormality of the sampling chip 40; therefore, the protrusion 520 is disposed on the bottom plate 510, and the second through hole 622 penetrates through the protrusion 520 and the bottom plate 510, so that the protrusion 520 is an annular barrel structure, the sampling chip 40 is sleeved on the protrusion 520 through the third through hole 623, and the protection member 70 is sleeved on the protrusion 520 through the fourth through hole 624.
In this embodiment, since the protrusion 520 is made of a high temperature resistant insulating material, and the sampling chip 40 and the protection member 70 are both sleeved on the protrusion 520, the protrusion 520 isolates the sampling chip 40 and the protection member 70 from the air flow released from the battery cell, so that the metal substances carried by the air flow released from the battery cell are prevented from being sputtered onto the sampling chip 40.
In this embodiment, the inner diameter of the second through hole 622 is smaller than or equal to the inner diameter of the first through hole 621, and since the second through hole 622 corresponds to the first through hole 621, the inner diameter of the second through hole 622 is reduced, which is equivalent to reducing the flow area of the air current, so that the thermal runaway cell can be blocked by the metal substance carried out by the air current when the valve is opened, and the metal substance is prevented from splashing into the sampling chip 40 and the busbar 20.
In this embodiment, the sum of the thicknesses of the protective member 70 and the sampling chip 40 may be smaller than the height of the protrusion 520. For example, in the structures of fig. 1 and 5, the protrusion 520 may protrude from the surface of the protection member 70, and the upper surface of the protrusion 520 may be attached to the upper cover plate, so that the channel through which the air flows is directly connected to the outside of the battery pack, so as to prevent the metal substances carried by the air flow from remaining inside the battery pack when the valve is opened.
In this embodiment, referring to fig. 1 and 2, the wire harness isolation board 10 is further provided with a plurality of grooves (not shown), a plurality of the bus units 211 are embedded in a plurality of the grooves, one of the grooves is provided with one of the bus units 211, and the bus units 211 can be electrically connected with the corresponding electrical core through a laser welding manner.
The application also provides a battery pack, which can comprise the collection integrated assembly 100, a plurality of battery cells, a module shell, an upper cover plate and a bottom cover plate. The module housing, the upper cover plate and the bottom cover plate enclose to form a containing cavity, and a plurality of the battery cells and the collection integrated assembly 100 are arranged in the containing cavity.
In this embodiment, the upper cover plate is used to protect the upper part of the battery pack, and the upper cover plate may be connected to the collection assembly 100 through plastic rivets and glue layers on the barrier strips; the upper cover plate can be made of PC, PP, PVC plastic materials.
In this embodiment, the bottom cover plate may be an insulating bottom film for protecting the bottom of the battery pack, and the bottom cover plate may be adhered to the bottom surface of the battery cell by using a double sided tape; the material of the bottom plate 510 may be a film material such as PET or PVC.
The invention provides an acquisition integrated component and a battery pack; the collecting and integrating assembly comprises a wire harness isolation plate, and a busbar, a flexible circuit board and a sampling chip which are arranged on the wire harness isolation plate, wherein the busbar comprises a plurality of busbar groups, and each busbar group comprises a plurality of busbar units; the flexible circuit board comprises a plurality of transmission bars arranged between a plurality of adjacent bus units, the sampling chip is arranged between two adjacent bus groups, and the sampling chip is electrically connected with the transmission bars; according to the battery management module, the sampling chip electrically connected with the transmission bars is arranged between the bus groups, so that the cluster plates of the battery management module are integrated in the collection integrated assembly, working data of the battery cells can be directly transmitted to the sampling chip through the transmission bars, the arrangement of the switching wire harness is removed, and the technical problem that more switching wire harnesses cannot be arranged due to space limitation is solved.
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 (10)

1. An acquisition integration assembly, comprising:
a harness isolation plate;
a busbar disposed on the harness isolation board, the busbar including a plurality of busbar groups arranged along a length direction of the harness isolation board, each of the busbar groups including a plurality of busbar units arranged along a width direction of the harness isolation board;
the flexible circuit board is arranged on the wire harness isolation board and comprises a plurality of transmission bars arranged along the width direction of the wire harness isolation board, and the transmission bars are arranged between two adjacent bus units; and
the sampling chip is arranged on the wiring harness isolation plate and between two adjacent bus groups, the sampling chip is electrically connected with the transmission strip, and the sampling chip is used for collecting working data of the target battery cell.
2. The collection-integration assembly of claim 1, wherein the transmission bar comprises a first transmission portion and a second transmission portion that are separately disposed, the first transmission portion being electrically connected to the first end of the sampling chip, the second transmission portion being electrically connected to the second end of the sampling chip.
3. The collection assembly of claim 1, further comprising a plurality of positioning posts and a base disposed on the harness isolation plate, the base disposed between the sampling chip and the harness isolation plate;
the base is provided with a plurality of first positioning holes, one first positioning hole corresponds to one positioning column, and the plurality of first positioning holes are sleeved on the plurality of positioning columns.
4. The collection assembly of claim 3, further comprising a protective member disposed on the sampling chip, an orthographic projection of the sampling chip on the protective member being located within the protective member.
5. The collection-integration assembly of claim 4, wherein the sampling chip is provided with a plurality of second positioning holes and the protection member is provided with a plurality of third positioning holes;
the center points of the first positioning holes, the second positioning holes and the third positioning holes are on the same straight line, and the second positioning holes and the third positioning holes are sleeved on the first positioning holes.
6. The collection assembly of claim 4 or 5, wherein the harness isolation plate is provided with a plurality of first through holes, and the plurality of first through holes are positioned among the plurality of bus groups;
the base comprises a base plate and a bulge arranged on the base plate, a second through hole is formed in the bulge, a third through hole is formed in the sampling chip, a fourth through hole is formed in the protecting component, the centers of the first through hole, the second through hole, the third through hole and the fourth through hole are located on the same straight line, the sampling chip is sleeved on the bulge through the third through hole, and the protecting component is sleeved on the bulge through the fourth through hole.
7. The collection assembly of claim 6, wherein an inner diameter of the second through-hole is less than or equal to an inner diameter of the first through-hole.
8. The collection assembly of claim 6, wherein a sum of thicknesses of the protective member and the sampling chip is less than a height of the protrusion.
9. The collection assembly of claim 4 or 5, wherein the protective member and the base are comprised of a high temperature resistant insulating material.
10. A battery pack comprising the collection assembly of any one of claims 1 to 9.
CN202310599300.5A 2023-05-25 2023-05-25 Gather integrated component and battery package Pending CN116544621A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310599300.5A CN116544621A (en) 2023-05-25 2023-05-25 Gather integrated component and battery package

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310599300.5A CN116544621A (en) 2023-05-25 2023-05-25 Gather integrated component and battery package

Publications (1)

Publication Number Publication Date
CN116544621A true CN116544621A (en) 2023-08-04

Family

ID=87443479

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310599300.5A Pending CN116544621A (en) 2023-05-25 2023-05-25 Gather integrated component and battery package

Country Status (1)

Country Link
CN (1) CN116544621A (en)

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