CN209843827U - Adapter plate assembly and battery assembly - Google Patents

Abstract

The utility model provides a keysets subassembly and battery pack, keysets subassembly are used for connecting the utmost point ear of electric core, and the keysets subassembly includes: a circuit board substrate and a plurality of metal sheets; the metal sheets are arranged at intervals and used for welding lugs of the battery core; the metal sheet comprises a base part and a connecting part fixedly connected with the base part, the connecting part comprises a first connecting lug and a second connecting lug, and the first connecting lug and the second connecting lug are bent and extended from two opposite edges of the base part towards the same side of the base part; the circuit board substrate is provided with a welding hole; the first connecting lug and the second connecting lug are respectively inserted into the corresponding welding holes and are connected with the circuit board substrate in a welding mode. The utility model discloses utilize two engaging lugs to realize the spot welding fixed connection of sheetmetal and circuit board base plate, reduced the welded area, reserved the stress release space for the deformation of sheetmetal, reduced the deformation risk of sheetmetal, help promoting the surface smoothness of sheetmetal, improve the utmost point ear welding quality of sheetmetal and electric core.

Description

Adapter plate assembly and battery assembly

Technical Field

The utility model relates to a technical field that charges especially relates to a keysets subassembly and battery pack.

Background

With the development and progress of new materials and new energy technologies, rechargeable batteries are widely used in various consumer electronics, for example, rechargeable batteries used in electronic devices such as mobile phones, tablet computers, cameras, unmanned aerial vehicles, and the like.

According to the conventional rechargeable battery, the plurality of metal sheets are arranged on the adapter plate assembly, so that a plurality of battery cores and the plurality of metal sheets can be welded, and the purposes of increasing the battery capacity and outputting the preset voltage are achieved in a series and parallel combination mode. When the metal sheet and the adapter plate assembly are fixed by welding, the whole surface of the metal sheet is usually attached and welded on the adapter plate assembly to realize fixation and electrical connection.

However, because the heat shrinkage ratios of the metal sheet and the base material of the adapter plate assembly are different, after the welding of the metal sheet and the adapter plate assembly is completed, the adapter plate assembly is deformed when cooled and shrunk, and the deformation of the adapter plate assembly can cause the deformation of the metal sheet and affect the surface flatness of the metal sheet. The flatness of the metal sheet further affects the welding quality of the tab and the metal sheet of the subsequent battery core, so that cold welding may occur, the through-current capacity of the tab is reduced, and the quality of a battery product is reduced.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a keysets subassembly and battery pack to solve the easy problem that leads to welding quality poor that warp of sheetmetal on the current keysets subassembly.

On the one hand, the embodiment of the utility model discloses keysets subassembly for connect the utmost point ear of a plurality of electric cores, in order to be a plurality of electric core is connected according to predetermined series-parallel mode electricity, the keysets subassembly includes: the circuit board comprises a circuit board substrate and a plurality of metal sheets, wherein the plurality of metal sheets are arranged at intervals and used for welding lugs of the battery core;

the metal sheet comprises a base part and a connecting part fixedly connected with the base part, the connecting part comprises a first connecting lug and a second connecting lug, and the first connecting lug and the second connecting lug are respectively bent and extended from two opposite edges of the base part towards the same side of the base part;

the circuit board substrate is provided with a welding hole;

the first connecting lug and the second connecting lug are respectively inserted into the corresponding welding holes and are welded with the circuit board substrate, so that the lug of the battery cell is electrically connected with the circuit board substrate through the metal sheet.

On the other hand, the embodiment of the utility model also discloses a battery assembly, the battery assembly includes the electric core, the electric core is provided with the utmost point ear, the battery assembly also includes the aforesaid adapter plate subassembly;

and the metal sheet is welded with the lug.

The embodiment of the utility model provides an in, the keyset subassembly includes circuit board base plate and a plurality of sheetmetal, the sheetmetal include the basal portion and with basal portion fixed connection's connecting portion, connecting portion include relative two engaging lugs that set up, weld in inserting the welding hole with two engaging lugs when sheetmetal and circuit board base plate welding. Therefore, the spot welding fixed connection of the metal sheet and the circuit board substrate is realized by utilizing the two connecting lugs, compared with the traditional whole surface welding mode, the welding area is reduced, a stress release space is reserved for the deformation of the metal sheet, the deformation risk of the metal sheet is reduced, the surface smoothness of the metal sheet is promoted, and the tab welding quality of the metal sheet and the battery cell is improved.

The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 shows a schematic structural view of an adapter plate assembly according to an embodiment of the present invention;

fig. 2 shows a front view of a metal sheet according to an embodiment of the invention;

FIG. 3 is a top view of a metal sheet according to an embodiment of the present invention

Fig. 4 shows a left side view of a metal sheet according to an embodiment of the invention;

fig. 5 illustrates a cross-sectional view of the adaptor plate assembly of fig. 1 in accordance with an embodiment of the present invention;

fig. 6 is a partial enlarged view of the position I in fig. 5 according to the embodiment of the present invention;

fig. 7 shows a front view of a further metal sheet according to an embodiment of the invention;

FIG. 8 shows a top view of another metal sheet according to an embodiment of the present invention

Fig. 9 shows a left side view of yet another metal sheet of an embodiment of the invention;

fig. 10 is a schematic structural diagram of a battery pack according to an embodiment of the present invention;

fig. 11 shows a schematic structural diagram of another battery assembly according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention provides an adapter plate assembly and a battery assembly, which are described in detail below by referring to several specific embodiments.

Referring to fig. 1 to 6, a patch panel assembly provided by an embodiment of the present invention is shown, and the patch panel assembly is used for connecting tabs of a plurality of battery cells, so as to electrically connect a plurality of battery cells according to a preset series-parallel connection mode. The adapter plate assembly includes: the battery comprises a circuit board substrate 10 and a plurality of metal sheets 11, wherein the plurality of metal sheets 11 are arranged at intervals, and the metal sheets 11 are used for welding lugs of the battery core;

the metal sheet 11 comprises a base portion 111 and a connecting portion 112 fixedly connected with the base portion 111, the connecting portion 112 comprises a first connecting lug 1121 and a second connecting lug 1122, and the first connecting lug 1121 and the second connecting lug 1122 are respectively bent and extended from two opposite edges of the base portion 111 towards the same side of the base portion 111;

the circuit board substrate 10 is provided with a welding hole 101;

the first connecting lug 1121 and the second connecting lug 1122 are respectively inserted into the corresponding welding holes 101 and are welded to the circuit board substrate 10, so that the tabs of the battery cell are electrically connected to the circuit board substrate through the metal sheets.

Particularly, as shown in fig. 1, the utility model provides a patch panel assembly is shown, this patch panel assembly is used for connecting the utmost point ear of electric core, and this patch panel assembly includes circuit board base plate 10 and a plurality of sheetmetal 11, and a plurality of sheetmetal 11 intervals set up to sheetmetal 11 is used for welding the utmost point ear of electric core. The Circuit Board substrate 10 may be a common PCB (Printed Circuit Board) or FPC (Flexible Printed Circuit Board). The sheetmetal 11 is the metallic conductor who is connected with the utmost point ear of electric core, and every sheetmetal 11 is connected with the anodal ear or the negative pole ear of electric core, constitutes electric core group, this electric core group accessible through establishing ties and parallelly connected form with a plurality of electric cores the utility model provides an adapter plate subassembly is connected with the battery protection shield electricity.

As shown in fig. 2 to 4, which respectively show a front view, a top view and a left view of the metal sheet 11, the metal sheet 11 can be manufactured and formed by stamping, and the metal sheet 11 formed by stamping with a die comprises a base portion 111 and a connecting portion 112 fixedly connected with the base portion 111, the base portion 111 is used for subsequent welding with a tab of a battery cell, and the connecting portion 112 is used for connection with the circuit board substrate 10. The stamped and formed connecting portion 112 may include a first connecting lug 1121 and a second connecting lug 1122, and the first connecting lug 1121 and the second connecting lug 1122 are respectively bent and extended from two opposite edges of the base portion 111 toward the same side of the base portion 111. As shown in fig. 2, the first connecting lug 1121 and the second connecting lug 1122 are symmetrically arranged along the first axis L1, and extend to be bent toward the same side of the base 111, so as to provide a structure for welding and fixing on two opposite sides of the base 111, which helps to ensure the reliability and stability of welding of the metal sheets 11. And the first connecting lug 1121 and the second connecting lug 1122 extend and bend away from the base 111, as shown in fig. 5 and 6, the circuit board substrate 10 is provided with soldering holes 101, and the first connecting lug 1121 and the second connecting lug 1122 are respectively inserted into the corresponding soldering holes 101 and are soldered to the circuit board substrate 10. Therefore, during welding, the welding point is positioned on the surface of one side, which is not provided with the metal sheet 11, of the circuit board substrate 10, so that occupation of the welding point on the layout area of the metal sheet 11 is avoided, and meanwhile, the appearance consistency of the circuit board substrate 10 can be improved.

The embodiment of the utility model provides an in, utilize two engaging lugs to realize the spot welding fixed connection of sheetmetal and circuit board base plate, compare in the whole surface welding's of tradition form, reduced the welded area, reserved the stress release space for the deformation of sheetmetal, reduced the deformation risk of sheetmetal, help promoting the surface smoothness of sheetmetal, improve the utmost point ear welding quality of sheetmetal and electric core.

Alternatively, referring to fig. 7 to 9, the connecting portion 112 further includes a third engaging lug 1123 and a fourth engaging lug 1124, and the third engaging lug 1123 and the fourth engaging lug 1124 are bent and extended from the other two opposite edges of the base portion 111 toward the same bending direction of the first engaging lug 1121 and the second engaging lug 1122;

the third connecting lug 1123 and the fourth connecting lug 1124 are respectively inserted into the corresponding welding holes 101, and are connected to the circuit board substrate 10 by welding.

Specifically, as shown in fig. 7 to 9, a front view, a top view and a left view of another metal sheet 11 are respectively given, and on the basis that the connecting portion 112 includes the first connecting lug 1121 and the second connecting lug 1122, the connecting portion 112 may further include a third connecting lug 1123 and a fourth connecting lug 1124, the third connecting lug 1123 and the fourth connecting lug 1124 are respectively bent and extended from the other two opposite edges of the base portion 111 toward the same bending direction of the first connecting lug 1121 and the second connecting lug 1122, as shown in fig. 8, the third connecting lug 1123 and the fourth connecting lug 1124 are symmetrically arranged along the second axis L2 and bent and extended toward the same bending direction of the first connecting lug 1121 and the second connecting lug 1122, that is, bent and extended away from the base portion 111. Then, the third engaging lug 1123 and the fourth engaging lug 1124 are located at different opposite sides with respect to the first engaging lug 1121 and the second engaging lug 1122, for example, a rectangle, the first engaging lug 1121 and the second engaging lug 1122 can be located at shorter opposite sides, and the third engaging lug 1123 and the fourth engaging lug 1124 can be located at longer opposite sides. The third connecting lug 1123 and the fourth connecting lug 1124 are respectively inserted into the corresponding welding holes and are connected with the circuit board substrate 10 in a welding manner. Therefore, the utility model discloses well accessible provides four engaging lugs, realizes that sheetmetal 11 is connected with a plurality of spot welding of circuit board base plate 10, for aforementioned two spot welding, has further promoted sheetmetal welded reliability, still can avoid the shrinkage deformation problem that face contact welding brought simultaneously.

Optionally, one end of the connecting portion 112 away from the base portion 111 is provided with a chamfer structure.

Specifically, in order to facilitate the smooth and easy insertion of the connection portion 112 into the soldering hole on the circuit board substrate 10, a chamfer structure may be provided at an end of the connection portion 112 away from the base portion 111, and the chamfer structure may be a rounded corner or a chamfered corner, so as to make the end of the connection portion 112 away from the base portion 111 smaller and narrower, thereby performing a guiding function and facilitating the insertion of the connection portion 112.

Optionally, referring to fig. 1, the interposer assembly further includes a cell acquisition gold finger 12 for electrically connecting to a battery management system;

the battery core collecting golden finger 12 is arranged on the circuit board substrate 10 and is electrically connected with the metal sheet 11, and the battery management system collects the electrical parameters of the battery core through the battery core collecting golden finger 12.

Particularly, as shown in fig. 1, the utility model provides an in the embodiment of the utility model the infrastructure of electric core built-up connection that keysets subassembly provided, in order to realize managing the electric quantity of electric core, charge and discharge etc, still can set up the circuit protection board usually the utility model provides an in the keysets subassembly can also include electric core collection golden finger 12, this electric core collection golden finger 12 can be a plurality of welding contact or the elastic contact that parallel, this electric core collection golden finger 12 sets up on circuit board base plate 10 to be connected with sheetmetal 11 electricity, be used for switching on with conventional circuit protection board, realize the transmission of signal of telecommunication, thereby battery management system can pass through electric core collection golden finger 12 gathers the electric parameter of electric core, for example, electric quantity, charge and discharge number of times, loss etc.

Optionally, referring to fig. 1, the interposer assembly further includes an encryption chip 13 for performing encrypted communication with the battery management system;

the encryption chip 13 is disposed on the circuit board substrate 10 and electrically connected to the metal sheet 11.

Particularly, as shown in fig. 1, the embodiment of the present invention further includes an encryption chip 13, the encryption chip is used for encrypting communication with the battery management system, and can realize matching authentication with the host device, and when the adapter plate assembly without the encryption chip 13 is electrically connected with the host device, the host can refuse to connect. The encryption chip 13 can be arranged in the vacant space on the circuit board substrate 10 and electrically connected with the metal sheet 11, so that the area of the circuit board substrate 10 can be fully utilized, and the extra cost expenditure can be reduced.

Optionally, referring to fig. 1, the adapter plate assembly further includes a positive bus bar 14 and a negative bus bar 15;

the positive bus bar 14 and the negative bus bar 15 are both arranged on the circuit board substrate 10 and electrically connected with the metal sheet 11.

Specifically, as shown in fig. 1, the interposer assembly further includes a positive bus bar 14 and a negative bus bar 15, and the positive bus bar 14 and the negative bus bar 15 are disposed on the circuit board substrate 10 and electrically connected to the metal sheet 11. Then, when a plurality of battery cells are connected to the circuit board substrate 10 by a plurality of metal sheets 11 in combination, power supply can be realized by outputting electric energy to external electric equipment through the common positive bus bar 14 and the common negative bus bar 15.

Optionally, the circuit board substrate 10 is provided with a barcode, and at least one of the following information can be known through the barcode: the relevant information of the adapter plate assembly and the relevant information of the battery core;

specifically, in order to make the battery product traceable and facilitate the management of the whole life cycle of the battery product, a barcode may be provided on the circuit board substrate 10 by means of laser marking, chemical etching, or the like, and the barcode is not limited to a conventional barcode or a two-dimensional barcode of the time of day, but may be a carrier for production information. The related information (such as supplier information, production time and the like) of the adapter plate assembly and the related information (such as supplier information, production time, cell quality and the like) of the cell can be known through the bar code. Therefore, a more perfect technical supervision means can be established through the bar code, and the product quality is favorably improved.

Optionally, the metal sheet 11 is a copper sheet.

Specifically, by combining the conductivity and cost of the common metal material in the current market, copper with high conductivity, good conductivity and moderate cost can be selected as the material of the metal sheet 11, so that the performance and the cost are both considered.

Alternatively, referring to fig. 2 to 4, the base 111, the first connection lug 1121 and the second connection lug 1122 together form an integral structure.

Specifically, as shown in fig. 2 to 4, the base 111, the first connecting lug 1121, and the second connecting lug 1122 may be manufactured by one metal sheet 11 through one set of die press forming, so that a subsequent assembly and connection process due to separate manufacturing can be avoided, the production time can be saved, and the production efficiency can be improved.

Optionally, referring to fig. 3, the base 111 is elongated, wherein the first connecting lug 1121 and the second connecting lug 1122 are respectively located at two sides of the base 111 in the width direction.

Specifically, as shown in fig. 3, the base 111 may have an elongated structure, and when the first connection lug 1121 and the second connection lug 1122 are respectively bent and extended from two opposite edges of the base 111, the first connection lug 1121 and the second connection lug 1122 may be disposed on two opposite sides in a shorter width direction, and in view of convenience of actual mold opening, the heights of the first connection lug 1121 and the second connection lug 1122 may be the same, the widths of the first connection lug 1121 and the second connection lug 1122 may be the same, the thicknesses of the first connection lug 1121 and the second connection lug 1122 may be the same or different from the thickness of the base 111, and when the widths are different, the first connection lug 1121 and the second connection lug 1122 may be designed to be thinner than the thickness of the base 111 so as to facilitate bending.

Optionally, a plurality of metal sheets 11 are uniformly distributed on the circuit board substrate 10.

Specifically, generally, a plurality of sheet-shaped battery cells are stacked together or a plurality of cylindrical battery cells are bound together, and thus, in order to adapt to the assembly form of the battery cells, a plurality of metal sheets 11 may be uniformly distributed on the circuit board substrate 10, thereby facilitating the docking of the respective battery cells.

Optionally, the plurality of metal sheets 11 include a first metal sheet and a second metal sheet, where the length of the second metal sheet is greater than that of the first metal sheet, and the second metal sheet is used to electrically connect the tabs of the plurality of battery cells simultaneously.

Specifically, in practical application, the metal sheets with different lengths can be designed according to the actual layout space, for example, the length of the second metal sheet is greater than that of the first metal sheet, so that the second metal sheet has a larger connection area, and the tabs with the same polarity of the plurality of battery cells can be connected to the second metal sheet, thereby reducing the risk of unreliable connection caused by insufficient area of the metal sheets.

Optionally, the width of the first connection lug 1121 and the second connection lug 1122 is smaller than the width of the base portion 111.

Specifically, in order to reduce the soldering area to the maximum, the widths of the first connecting lugs 1121 and the second connecting lugs 1122 may be smaller than the width of the base portion 111, so as to avoid the first connecting lugs 1121 and the second connecting lugs 1122 occupying too much layout area on the circuit board substrate 10.

Optionally, the first connecting lug 1121 and the second connecting lug 1122 are located at the middle position of the side edge of the base portion 111 in the width direction, so that two notches are formed at two sides of the connecting portion 111 respectively;

and/or the width of the first connection lug 1121 and the second connection lug 1122 is smaller than 1/2 of the width of the base portion 111.

Specifically, when the widths of the first engaging lug 1121 and the second engaging lug 1122 are smaller than the width of the base 111, the first engaging lug 1121 and the second engaging lug 1122 can be disposed along the middle of the side of the base 111 in the width direction, so that a notch structure can be formed on both sides of the first engaging lug 1121 and the second engaging lug 1122 to avoid possible interference with other devices. In practice, the width of the first and second engaging lugs 1121, 1122 can be designed to be 1/2 smaller than the width of the base 111, however, 1/2 is not intended to limit the present invention.

Referring to fig. 10 and 11, an embodiment of the present invention further provides a battery assembly, where the battery assembly includes a battery cell, and the battery cell is provided with a tab, and is characterized in that the battery assembly further includes any one of the foregoing adapter plate assemblies;

the metal sheets 11 are welded to the tabs.

Particularly, as shown in fig. 10, the embodiment of the present invention further provides a battery assembly, where the battery assembly includes an electrical core, the electrical core is provided with a tab, it can be understood that each electrical core is a minimum energy storage unit in the battery assembly, each electrical core has a corresponding positive tab and a corresponding negative tab, and the positive tab and the negative tab are respectively welded with the metal sheet 11 on the interposer assembly provided by the embodiment of the present invention. Fig. 11 shows a schematic of a battery assembly with a housing. Therefore, through the embodiment of the utility model provides an adapter plate subassembly can realize the polymerization of a plurality of electric cores.

Therefore, the embodiment of the utility model provides an among the battery pack, through using above-mentioned keysets subassembly, help improving the utmost point ear of electric core and the welding quality of sheetmetal, help promoting battery pack's product quality.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: rather, the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.

Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. An interposer assembly for connecting tabs of a plurality of cells to electrically connect a plurality of cells in a predetermined series-parallel connection, the interposer assembly comprising: the battery comprises a circuit board substrate and a plurality of metal sheets arranged on the circuit board substrate, wherein the metal sheets are arranged at intervals and used for welding lugs of the battery core;

the metal sheet comprises a base part and a connecting part fixedly connected with the base part, the connecting part comprises a first connecting lug and a second connecting lug, and the first connecting lug and the second connecting lug are respectively bent and extended from two opposite edges of the base part towards the same side of the base part;

the circuit board substrate is provided with a welding hole; the first connecting lug and the second connecting lug are respectively inserted into the corresponding welding holes and are welded with the circuit board substrate, so that the lug of the battery cell is electrically connected with the circuit board substrate through the metal sheet.

2. The interposer assembly as claimed in claim 1, wherein the connection portion further comprises a third engaging lug and a fourth engaging lug, the third engaging lug and the fourth engaging lug respectively extend from two other opposite edges of the base portion and are bent toward the same bending direction of the first engaging lug and the second engaging lug;

the third connecting lug and the fourth connecting lug are respectively inserted into the corresponding welding holes and are connected with the circuit board substrate in a welding mode.

3. The patch panel assembly of claim 1, wherein an end of the connection portion remote from the base portion is provided with a chamfered formation;

the adapter plate assembly further comprises a battery cell acquisition golden finger which is electrically connected with the battery management system; the battery cell acquisition golden finger is arranged on the circuit board substrate and is electrically connected with the metal sheet, and the battery management system acquires the electrical parameters of the battery cell through the battery cell acquisition golden finger;

or/and the adapter plate assembly further comprises an encryption chip used for carrying out encryption communication with the battery management system; the encryption chip is arranged on the circuit board substrate and is electrically connected with the metal sheet;

or/and the adapter plate assembly further comprises a positive bus bar and a negative bus bar; the positive current collecting sheet and the negative current collecting sheet are both arranged on the circuit board substrate and are electrically connected with the metal sheet;

or/and, the circuit board substrate is provided with a bar code, and at least one of the following information can be known through the bar code: the relevant information of the adapter plate assembly and the relevant information of the battery core;

or/and the metal sheet is a copper sheet;

or/and the base part, the first connecting lug and the second connecting lug form an integrated structure together.

4. The interposer assembly of claim 1, wherein the base is elongated, and wherein the first and second connection ears are located on two lateral sides of the base in a width direction.

5. The adaptor plate assembly of claim 4 wherein said first and second coupling ears are the same height;

or/and the width of the first connecting lug is the same as that of the second connecting lug;

or/and the thicknesses of the first connecting lug and the second connecting lug and the base are the same or different.

6. The interposer assembly of claim 1, wherein a plurality of the metal sheets are evenly distributed on the circuit board substrate.

7. The interposer assembly of claim 6, wherein the plurality of metal sheets comprises a first metal sheet and a second metal sheet, wherein the second metal sheet has a length greater than a length of the first metal sheet, and wherein the second metal sheet is configured to electrically connect tabs of a plurality of cells simultaneously.

8. The patch panel assembly of claim 1, wherein the first and second engagement ears have a width less than a width of the base.

9. The adaptor plate assembly of claim 8 wherein said first and second engaging lugs are located at a central position of the widthwise sides of said base portion such that a notch is formed at each side of said connecting portion;

and/or the width of the first connecting lug and the second connecting lug is smaller than 1/2 of the width of the base part.

10. A battery assembly comprising a cell provided with tabs, characterized in that it further comprises a patch panel assembly according to any one of claims 1 to 9;

and the metal sheet is welded with the lug.