CN223124137U - Battery device and electricity utilization device - Google Patents

Abstract

The present application relates to the field of battery technology and discloses a battery device and an electrical device, the battery device comprising: a plurality of battery packs, a plurality of integrated busbars and an adapter, each battery pack comprising a plurality of battery cells, each battery cell having a pole, the corresponding pole forming the output end of the battery pack, a plurality of integrated busbars corresponding to the plurality of battery packs one by one, each integrated busbar comprising an insulating member and a plurality of conductive sheets, the conductive sheets being electrically connected to the corresponding output end, the adapter being electrically connected to the plurality of conductive sheets belonging to different integrated busbars respectively to electrically connect the corresponding plurality of battery packs, at least one of the plurality of conductive sheets electrically connected to the adapter being positioned and matched with the adapter through at least one positioning structure to limit the movement of the adapter within the preset plane where the conductive sheets are located. Thus, the adapter and the conductive sheet can be positioned and matched through the positioning structure to realize the electrical connection of the plurality of integrated busbars, without the need to use additional positioning elements, thereby facilitating the reduction of assembly processes.

Description

Battery device and electricity utilization device

Technical Field

The application relates to the technical field of batteries, in particular to a battery device and an electricity utilization device.

Background

The integrated busbar (Cells Contact System, CCS) integrates components such as a conducting plate, a sampling component (e.g., a voltage sampling component, a temperature collecting component, etc.) in the battery device into a module, which is used for realizing serial-parallel connection among a plurality of battery cells, and functions such as temperature sampling, voltage sampling, overcurrent fusing, etc. of the battery device. Due to the limitation of the molding process of the integrated busbar or the limitation of the size of the integrated busbar, when the overall size of the battery device is too large, a plurality of integrated busbars are generally used in the battery device, and electrical connection needs to be achieved between the plurality of integrated busbars. However, the assembly of the plurality of integrated busbar for electrical connection is relatively cumbersome and has low efficiency.

Disclosure of utility model

The application provides a battery device and an electricity utilization device, wherein an adapter and a conducting strip can be matched in a positioning way through a positioning structure so as to realize the electric connection of a plurality of integrated busbar, and an additional positioning element is not needed, so that the assembly process is reduced.

In a first aspect, an embodiment of the present application provides a battery device, including a plurality of battery packs, a plurality of integrated busbar and an adapter, where the plurality of battery packs are sequentially arranged, each battery pack includes a plurality of battery units, each battery unit has a pole, the corresponding pole has an output end of the battery pack, the plurality of integrated busbar corresponds to the plurality of battery packs one by one, each integrated busbar includes an insulating member and a plurality of conductive sheets, the insulating member is disposed at one end of the output end of the battery pack, the conductive sheets are fixedly disposed on the insulating member and electrically connected to the corresponding output end, the adapter is disposed at one side of the integrated busbar facing away from the battery pack, and is electrically connected to the plurality of conductive sheets belonging to different integrated busbars, respectively, so as to electrically connect the corresponding plurality of battery packs, at least one of the plurality of conductive sheets electrically connected to the adapter is in positioning fit with the adapter through at least one positioning structure, so as to limit movement of the adapter in a preset plane, the preset plane is parallel to the plane where the conductive sheets are disposed, the positioning structure includes a first positioning portion and a second positioning portion, the first positioning portion is disposed on the adapter, and the second positioning portion is disposed on the conductive sheet.

Among the above-mentioned technical scheme, the adaptor can pass through location structure location cooperation with at least one of a plurality of conducting strips that its electricity is connected, need not to adopt extra locating element, just can realize the electric connection of a plurality of integrated female bars, be convenient for reduce the assembly process that adaptor and conducting strip realize electric connection, practice thrift the assembly time that a plurality of integrated female bars realize electric connection, can improve assembly efficiency, and can restrict the movement of adaptor in the plane that the conducting strip is located through location structure, so that the electric connection of adaptor and conducting strip is more stable, be convenient for improve battery device's reliability.

In some embodiments, the first positioning portion and the second positioning portion are a positioning protrusion and a first positioning hole, at least a portion of the positioning protrusion protrudes from the conductive sheet or the adaptor along a direction perpendicular to a plane where the conductive sheet is located, and is matched with the first positioning hole to at least limit movement of the adaptor in a plurality of different directions.

Among the above-mentioned technical scheme, through the cooperation in location arch and first locating hole, can restrict the adaptor and remove on the different directions of conducting strip place plane to make the electricity of adaptor and conducting strip be connected more stable, foretell location structure assembly is comparatively simple simultaneously, is convenient for improve assembly efficiency.

In some embodiments, the first positioning hole is located at a corner of the conductive sheet or the adaptor and penetrates through two adjacent edges thereof.

Among the above-mentioned technical scheme, first locating hole runs through its adjacent both sides limit to make first locating hole constitute the trompil that has the breach in conducting strip or adaptor's corner position, cooperate through breach and location arch, with the assembly that makes location arch and first locating hole more convenient, be convenient for improve assembly efficiency.

In some embodiments, the hole wall of the first positioning hole comprises a first wall and a second wall which are sequentially arranged along the circumferential direction and are connected in a bending manner, and the first wall and the second wall respectively extend along a straight line.

In the above technical scheme, one end of the first wall and one end of the second wall are connected, and the other end of the first wall and the second wall are arranged at intervals, so that the first positioning hole is formed into a notch, the structure of the first positioning hole is simple, and the processing and the manufacturing are convenient.

In some embodiments, the first locating hole is located on the conductive sheet or the adaptor and is spaced apart from the edge thereof.

In the above technical scheme, the first positioning hole is arranged at intervals with the edge of the conducting strip or the adapter, namely, the first positioning hole is positioned in the conducting strip or the adapter, so that the first positioning hole is not easy to damage, and the stability of the electrical connection between the adapter and the conducting strip is improved.

In some embodiments, the positioning tab is integrally formed with one of the conductive sheet and the adapter, or the positioning tab is fittingly connected to one of the conductive sheet and the adapter.

In the technical scheme, the integrally formed positioning bulge can reduce the processing difficulty of the positioning bulge and is convenient for improving the processing efficiency of the positioning bulge, or the positioning bulge is assembled in one of the conducting strip and the adapter, and the positioning bulge in assembly connection can be selected, installed and adjusted according to actual requirements, so that the positioning bulge has higher flexibility.

In some embodiments, one of the conductive tab and the adapter is stamped with a locating boss or one of the conductive tab and the adapter is removably attached to the locating boss.

In the technical scheme, the positioning bulge is formed by stamping, so that the processing efficiency of the positioning bulge is improved, or the positioning bulge is detachably connected with one of the conductive sheet and the adapter, and when the positioning bulge is damaged in long-time use, the positioning bulge can be replaced for maintenance, so that the maintenance cost is reduced.

In some embodiments, one of the conductive tab and the adapter is formed with a threaded hole, and a portion of the positioning boss is threadedly coupled to the threaded hole and another portion is convexly disposed.

In the technical scheme, the positioning protrusion is connected to one of the conductive sheet and the adapter through the threads, so that the assembly mode of the positioning protrusion is simpler, and meanwhile, the connection strength of the positioning protrusion can be enhanced through the threads, so that the positioning protrusion is more stable in use.

In some embodiments, the adapter comprises a transition portion and two electrical connection portions, wherein two ends of the transition portion are respectively connected with the two electrical connection portions, the two electrical connection portions are respectively electrically connected with the two conductive sheets, the transition portion is provided with a stretchable and deformable buffer portion, and/or a stretchable and deformable buffer portion is connected between each electrical connection portion and the transition portion.

According to the technical scheme, when the battery monomer expands, the buffer part can buffer deformation stress of the battery monomer expansion, so that the adapter is not easy to deform greatly, the stability of the adapter in operation is improved conveniently, and/or the tensile deformation buffer part is arranged between each electric connection part and each transition part, and the buffer part can buffer the deformation stress of the battery monomer expansion, so that the relative positions of the electric connection parts and the transition parts are more stable, and the stability of the adapter in operation is improved conveniently.

In some embodiments, the edge of the conductive sheet spaced from and adjacent to the adapter has a protrusion, the edge of the adapter has an escape notch opposite the protrusion, and the width of the escape notch is greater than the width of the protrusion.

In the above technical scheme, the bulge sets up relatively with dodging the breach to make the distance of adaptor and adjacent conducting strip keep at a stable scope, be convenient for satisfy the electric gap requirement, and dodge the width of breach and be greater than the width of bulge, so that there is sufficient electric gap between adaptor and the adjacent conducting strip, even the bulge exists the size deviation in the manufacturing process, also be difficult for taking place arc discharge or the condition of short circuit between adjacent conducting strip and the adaptor.

In some embodiments, the adaptor is formed with a plurality of second positioning holes, the conductive sheet is formed with a third positioning hole, the post of the battery cell is provided with a positioning part, and the second positioning hole and the corresponding third positioning hole are opposite to the positioning part.

In the above technical scheme, the second locating hole is opposite to the corresponding third locating hole, so that a worker can observe the locating part through the second locating hole and the third locating hole, and whether the mounting position of the adapter and the conducting strip is normal or not is judged, and the reliability of the battery device is improved.

In some embodiments, two conductive sheets electrically connected to the adaptor are disposed at intervals along a first direction and are respectively matched with the adaptor in a positioning manner through positioning structures, the adaptor has a first central line extending along the first direction and a second central line extending along a second direction, the positioning structures corresponding to the two conductive sheets electrically connected to the adaptor are respectively located at two sides of the first central line and are respectively located at two sides of the second central line, and the second direction is perpendicular to the first direction and is parallel to a plane where the conductive sheets are located.

In the above technical scheme, the second direction is perpendicular to the first direction, and the second direction and the first direction are both parallel to the plane where the conductive sheet is located, the positioning structures are respectively located at two sides of the first central line, and the positioning structures are respectively located at two sides of the second central line, so that the positioning structures approximately represent the diagonal arrangement form, and the stability of the electrical connection of the adapter and the conductive sheet is improved.

In a second aspect, an embodiment of the present application provides an electrical device, including the battery device of the first aspect.

Among the above-mentioned technical scheme, because battery device is convenient for assemble, and battery device has good stability to the equipment that uses electric device is more convenient, and can improve the stability of electric device.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic structural diagram of an electric device according to some embodiments of the present application;

fig. 2 is an exploded view of a battery device according to some embodiments of the present application;

FIG. 3 is a schematic diagram of a battery device according to some embodiments of the present application;

FIG. 4 is an enlarged view of the area A encircled in FIG. 3;

FIG. 5 is a schematic illustration of a plurality of integrated busbar assemblies according to some embodiments of the present application;

FIG. 6 is an enlarged view of the area B encircled in FIG. 5;

FIG. 7 is a schematic illustration of an assembly of a conductive sheet and an adapter provided in some embodiments of the present application;

FIG. 8 is a schematic illustration of an assembly of a conductive sheet and an adapter provided in some embodiments of the present application;

FIG. 9 is a schematic diagram illustrating assembly of a conductive sheet and an adapter according to some embodiments of the present application;

FIG. 10 is a schematic view of the conductive sheet shown in FIG. 3;

Fig. 11 is a schematic view of the battery cell shown in fig. 3.

Reference numerals are a battery device 1, an electric device 2,

Battery pack 10, battery cell 12, pole 120, positioning portion 122, battery string 14,

An integrated busbar 20, an insulating member 22, a conductive sheet 24, a protruding portion 240, a third positioning hole 242, a fourth positioning hole 244,

Adaptor 30, transition portion 32, buffer portion 320, electrical connection portion 34, relief notch 36, second positioning hole 38,

Positioning structure 40, positioning projection 42, first positioning hole 43, first wall 430, second wall 432, threaded hole 45,

A controller 50, a motor 52,

A box 60, a containing cavity 62, a first box 64, a second box 66,

A sampling circuit board 70, a connector 72.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs, the terms used in the description of this application in this application are for the purpose of describing particular embodiments only and are not intended to be limiting of the application, and the terms "comprising" and "having" and any variations thereof in the description of this application and the claims and the above description of the drawings are intended to cover non-exclusive inclusions. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "attached" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, directly connected, indirectly connected through an intermediary, or may be in communication with the interior of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

The term "and/or" in the present application is merely an association relation describing the association object, and indicates that three kinds of relations may exist, for example, a and/or B may indicate that a exists alone, while a and B exist together, and B exists alone. In the present application, the character "/" generally indicates that the front and rear related objects are an or relationship.

In the embodiments of the present application, the same reference numerals denote the same components, and detailed descriptions of the same components are omitted in different embodiments for the sake of brevity. It should be understood that the thickness, length, width, etc. dimensions of the various components in the embodiments of the application shown in the drawings are merely illustrative and should not be construed as limiting the application in any way.

The term "plurality" as used herein refers to two or more (including two).

In the present application, the battery cell may include a lithium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel-hydrogen battery, a nickel-cadmium battery, a lead storage battery, and the like, which is not limited by the embodiment of the present application. The battery cell may be in a cylindrical shape, a flat shape, a rectangular parallelepiped shape, or other shapes, which is not limited in this embodiment of the application.

The battery device (Battery Apparatus) referred to in embodiments of the present application may be referred to as comprising one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly (Battery Cell Assembly) may include a plurality of battery cells connected in series, parallel, or series-parallel by a bus bar. In some embodiments, the battery cell assembly (Battery Cell Assembly) is generally formed from an arrangement of a plurality of battery cells.

As an example, the Battery cell assembly may be a Battery pack (Battery Module) formed by arranging and fixing a plurality of Battery cells to form an independent Module. As an example, the battery pack may be formed by binding a plurality of battery cells by a tie.

In some embodiments, the battery device may be a battery Pack (battery Pack) that includes a case and one or more battery cell assemblies housed in the case. As an example, the battery cell assembly may be a battery pack, and the battery cell assembly may be accommodated in the case by fixing the battery pack in the case. As an example, the battery cell assembly may be accommodated in the case by directly fixing a plurality of battery cells to the case. The case body can prevent liquid or other foreign matters from affecting the charge or discharge of the battery cells.

The battery cell includes a case, an electrode assembly, and an electrolyte. The case is used to contain the electrode assembly and the electrolyte, and in the present application, the pouch battery cell may refer to a battery cell using a soft exterior material as the case, for example, the encapsulation film described herein may be used as the case of the pouch battery cell. The electrode assembly consists of a positive electrode plate, a negative electrode plate and a separation film. The battery cell mainly relies on metal ions to move between the positive pole piece and the negative pole piece to work. The positive electrode plate comprises a positive electrode current collector and a positive electrode active material layer, wherein the positive electrode active material layer is coated on the surface of the positive electrode current collector, the positive electrode current collector without the positive electrode active material layer protrudes out of the positive electrode current collector coated with the positive electrode active material layer, and the positive electrode current collector without the positive electrode active material layer is used as a positive electrode lug. Taking a lithium ion battery as an example, the material of the positive electrode current collector may be aluminum, and the positive electrode active material may be lithium cobaltate, lithium iron phosphate, ternary lithium, lithium manganate or the like. The negative electrode plate comprises a negative electrode current collector and a negative electrode active material layer, wherein the negative electrode active material layer is coated on the surface of the negative electrode current collector, the negative electrode current collector without the negative electrode active material layer protrudes out of the negative electrode current collector coated with the negative electrode active material layer, and the negative electrode current collector without the negative electrode active material layer is used as a negative electrode tab. The material of the negative electrode current collector may be copper, and the negative electrode active material may be carbon, silicon, or the like. In order to ensure that the high current is passed without fusing, the number of positive electrode lugs is multiple and stacked together, and the number of negative electrode lugs is multiple and stacked together.

The material of the separator may be PP (polypropylene) or PE (polyethylene). In addition, the electrode assembly may be a roll-to-roll structure or a lamination structure, and embodiments of the present application are not limited thereto.

In recent years, new energy automobiles have been developed dramatically, and in the field of electric automobiles, battery devices play an important role as power sources of electric automobiles.

The integrated busbar can be used as an electrical connection component inside the Battery device to realize electrical connection among a plurality of Battery cells, when the overall size of the Battery device is oversized, due to the limitation of the integrated busbar forming process or the limitation of the size of the integrated busbar, a plurality of integrated busbars are usually used in the Battery device, and the plurality of integrated busbars need to be electrically connected so as to collect the temperature and the voltage of each conducting strip, thereby meeting the Battery management system (Battery MANAGEMENT SYSTEM, BMS) control strategy of the Battery device. In the related art, different integrated busbar realizes electric connection through the adaptor, and extra positioning element auxiliary positioning is needed during the adaptor installation for the assembly of a plurality of integrated busbar when realizing electric connection is comparatively loaded down with trivial details, and efficiency is lower.

Based on the above consideration, the problem that the assembly is complex when the integrated busbar is used for realizing electric connection is solved. The application designs a battery device which comprises a plurality of battery packs, a plurality of integrated busbar and an adapter, wherein the plurality of battery packs are sequentially arranged, each battery pack comprises a plurality of battery units, each battery unit is provided with a pole, the corresponding pole forms an output end of the battery pack, the plurality of integrated busbar corresponds to the plurality of battery packs one by one, each integrated busbar comprises an insulating part and a plurality of conducting strips, the insulating part is arranged at one end of the output end of the battery pack, the conducting strips are fixedly arranged on the insulating part and are electrically connected with the corresponding output end, the adapter is arranged at one side of the integrated busbar, which is far away from the battery pack, the adapter is respectively electrically connected with the plurality of conducting strips belonging to different integrated busbars, so that the corresponding plurality of battery packs are electrically connected with each other, at least one of the plurality of conducting strips electrically connected with the adapter is in positioning fit with the adapter through a positioning structure so as to limit the movement of the adapter in a plane where the conducting strips are located, the positioning structure comprises a first positioning part and a second positioning part, the first positioning part is arranged on the adapter, and the second positioning part is arranged on the conducting strip.

Among the above-mentioned technical scheme, the adaptor can pass through location structure location cooperation with at least one of a plurality of conducting strips that its electricity is connected, need not to adopt extra locating element, just can realize the electric connection of a plurality of integrated female bars, be convenient for reduce the assembly process that adaptor and conducting strip realize electric connection, practice thrift the assembly time that a plurality of integrated female bars realize electric connection, can improve assembly efficiency, and can restrict the adaptor through location structure and remove in the plane that the conducting strip is located, so that the electric connection of adaptor and conducting strip is more stable, be convenient for improve battery device's reliability.

The battery device disclosed by the embodiment of the application can be used for electric devices such as vehicles, ships or aircrafts, but is not limited to the electric devices. A power supply system including the battery device and the like disclosed in the present application, which constitute the power consumption device, may be used.

The embodiment of the application provides an electricity utilization device using a battery device as a power supply, wherein the electricity utilization device can be, but is not limited to, a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft and the like. Among them, the electric toy may include fixed or mobile electric toys, such as game machines, electric car toys, electric ship toys, electric plane toys, and the like, and the spacecraft may include planes, rockets, space planes, and spacecraft, and the like.

For convenience of description, the following embodiment will take an electric device 2 according to an embodiment of the present application as an example of a vehicle. Referring to fig. 1, fig. 1 is a schematic structural diagram of an electric device 2 according to some embodiments of the present application. The vehicle can be a fuel oil vehicle, a fuel gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle or a range-extended vehicle and the like. The interior of the vehicle is provided with a battery device 1, and the battery device 1 may be provided at the bottom or at the head or at the tail of the vehicle. The battery device 1 may be used for power supply of a vehicle, for example, the battery device 1 may serve as an operating power source of the vehicle. The vehicle may further comprise a controller 50 and a motor 52, the controller 50 being arranged to control the battery device 1 to supply power to the motor 52, for example for operating power requirements during start-up, navigation and driving of the vehicle.

In some embodiments of the application, the battery device 1 may be used not only as an operating power source for a vehicle, but also as a driving power source for a vehicle, instead of or in part instead of fuel oil or natural gas, to supply driving power to the vehicle.

Referring to fig. 2, fig. 2 is an exploded view of a battery cell 12 for a battery device 1 according to some embodiments of the present application. The battery device 1 includes a case 60 and a plurality of battery cells 12, and the battery cells 12 are accommodated in the case 60. The case 60 is used to provide an assembly space for the battery cells 12, and the case 60 may have various structures. In some embodiments, the case 60 may include a first case 64 and a second case 66, the first case 64 and the second case 66 being mutually covered, the first case 64 and the second case 66 together defining the receiving chamber 62 for receiving the battery cell 12. The second casing 66 may have a hollow structure with one end opened, the first casing 64 may have a plate-shaped structure, and the first casing 64 covers the open side of the second casing 66, so that the first casing 64 and the second casing 66 define the accommodating cavity 62 together, or the first casing 64 and the second casing 66 may have hollow structures with one open side (for example, as shown in fig. 2), and the open side of the first casing 64 covers the open side of the second casing 66. Of course, the case 60 formed by the first case 64 and the second case 66 may be of various shapes, such as a cylinder, a rectangular parallelepiped, or the like.

In the battery device 1, the plurality of battery cells 12 may be connected in series, parallel, or a series-parallel connection, which means that the plurality of battery cells 12 are connected in both series and parallel. The plurality of battery cells 12 can be directly connected in series, parallel or series-parallel, and then the whole formed by the plurality of battery cells 12 is accommodated in the box 60, or the battery device 1 can also be in a form of a battery cell assembly formed by connecting the plurality of battery cells 12 in series, parallel or series-parallel, and then the plurality of battery cell assemblies are connected in series, parallel or series-parallel to form a whole and are accommodated in the box 60.

Each of the battery cells 12 may be a secondary battery or a primary battery, wherein the secondary battery refers to a battery cell 12 that can be continuously used by activating an active material by charging after the battery cell 12 is discharged, and may also be a lithium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery, a lead storage battery, or the like. The battery cells 12 may be cylindrical, flat, rectangular, or otherwise shaped. Illustratively, in fig. 2, the battery cell 12 is rectangular in shape.

Referring to fig. 3-6 and 11, in the embodiment of the application, the battery device 1 includes a plurality of battery packs 10, a plurality of integrated bus bars 20 and an adapter 30, wherein the plurality of battery packs 10 are sequentially arranged, each battery pack 10 includes a plurality of battery cells 12, each battery cell 12 has a pole 120, the corresponding pole 120 is formed as an output end of the battery pack 10, the plurality of integrated bus bars 20 are in one-to-one correspondence with the plurality of battery packs 10, each integrated bus bar 20 includes an insulating member 22 and a plurality of conductive sheets 24, the insulating member 22 is disposed at one end of the output end of the battery pack 10, the insulating member 22 and the output end of the battery pack 10 are disposed at the same end of the battery pack 10, the conductive sheets 24 are fixedly disposed at the insulating member 22 and the conductive sheets 24 are electrically connected with the corresponding output end, the adapter 30 is disposed at one side of the integrated bus bars 20 facing away from the battery pack 10, and the adapter 30 is respectively electrically connected with the plurality of conductive sheets 24 belonging to different integrated bus bars 20 so as to electrically connect the corresponding plurality of battery packs 10, at least one of the plurality of conductive sheets 24 electrically connected with the adapter 30 is matched with the adapter 30 in a preset plane through a positioning structure to limit the movement of the adapter 30 in a preset plane surface 30; wherein, the positioning structure 40 includes a first positioning portion and a second positioning portion, the first positioning portion is disposed on the adaptor 30, and the second positioning portion is disposed on the conductive sheet 24, so that the adaptor 30 and the conductive sheet 24 are in positioning fit through the positioning structure 40, which means that the first positioning portion and the second positioning portion are in positioning fit, so as to realize positioning fit of the adaptor 30 and the conductive sheet 24.

It will be appreciated that the output of the battery pack 10 may be plural, the plural output may be a positive output and a negative output, respectively, and the battery pack 10 may be electrically connected with other components through its output, for example, the battery pack 10 may be electrically connected with other battery packs 10 through its output, at least one of the poles 120 in the battery pack 10 may be formed as a positive output of the battery pack 10, and at least one of the poles 120 may be formed as a negative output of the battery pack 10.

It can be seen that the conductive sheets 24 are fixedly arranged on the insulating member 22, so that the insulating member 22 can play a role of supporting the conductive sheets 24, and meanwhile, the plurality of conductive sheets 24 can be integrated on the insulating member 22, so that the assembly of the integrated busbar 20 and the battery pack 10 is more convenient, for example, the plurality of conductive sheets 24 are welded, clamped, connected by injection molding, bonded or thermally pressed on the insulating member 22, so that the plurality of conductive sheets 24 and the insulating member 22 form a whole and are then integrally assembled on the battery pack 10, so that the assembly process of the integrated busbar 20 and the battery pack 10 is simplified, the conductive sheets 24 are electrically connected with corresponding output ends, and the adapter member 30 is electrically connected with the plurality of conductive sheets 24 belonging to different integrated busbars 20 respectively, so that the electrical connection between the plurality of integrated busbars 20 is realized after the conductive sheets 24 are electrically connected with the adapter member 30, and the electrical connection between the battery packs 10 corresponding to the plurality of integrated busbars 20 is realized (the electrical connection between the battery packs 10 corresponding to the integrated busbars 20 can be parallel connection, serial connection or serial connection).

Optionally, the insulating member 22 is made of polyethylene terephthalate (PET) film, which has good electrical insulation performance, can effectively reduce the possibility of electric leakage of the battery device 1, has a wide temperature resistant range, can stably operate in a temperature range of-70 ℃ to 150 ℃, has a short-term temperature resistance of 200 ℃, can maintain a stable operation effect even if the battery device 1 generates a large amount of heat during operation, and can be molded by hot pressing, lamination, printing and other processes, thereby being suitable for large-scale automated production and facilitating improvement of the manufacturing efficiency of the integrated busbar 20.

In addition, at least one of the plurality of conductive tabs 24 electrically connected to the adaptor 30 is in positioning engagement with the adaptor 30 by at least one positioning structure 40 to limit movement of the adaptor 30 in a predetermined plane parallel to the plane of the conductive tabs 24, for example, the positioning structure 40 may be used to limit movement and rotation of the adaptor 30 relative to the conductive tabs 24 in the predetermined plane to facilitate assembly between the adaptor 30 and the conductive tabs 24.

In the related art, by placing an additional positioning element on the battery cell, the positioning element is disposed independent of the adaptor and the conductive sheet, for example, a positioning post is formed on the positioning element, and the positioning post penetrates through the adaptor and the conductive sheet to play a role of positioning the adaptor, so that the adaptor and the conductive sheet are indirectly positioned through the positioning element, and the assembly of the adaptor and the conductive sheet is complicated, while according to the battery device 1 of the embodiment of the present application, the positioning structure 40 is disposed, make the assembly between adaptor 30 and the conducting strip 24 simpler and more convenient, the convenience is carried out follow-up fixed to adaptor 30 and conducting strip 24 to realize reliable electric connection between adaptor 30 and the conducting strip 24, thereby just can realize the electric connection between a plurality of integrated female row 20, be convenient for reduce the assembly process that adaptor 30 and conducting strip 24 realize electric connection, practice thrift the assembly time that a plurality of integrated female row 20 realize electric connection, can improve assembly efficiency.

It will be appreciated that at least one of the plurality of conductive tabs 24 electrically connected to the adapter 30 is in positioning engagement with the adapter 30 via at least one positioning structure 40 to limit movement of the adapter 30 within a predetermined plane may include examples of example 1, one of the plurality of conductive tabs 24 electrically connected to the adapter 30 being in positioning engagement with the adapter 30 via one positioning structure 40 to limit movement of the adapter 30 within a predetermined plane, example 2, one of the plurality of conductive tabs 24 electrically connected to the adapter 30 being in positioning engagement with the adapter 30 via a plurality of positioning structures 40 to limit movement of the adapter 30 within a predetermined plane, and example 3, one of the plurality of conductive tabs 24 electrically connected to the adapter, at least two of the conductive tabs 24 each being in positioning engagement with the adapter 30 via at least one positioning structure 40 to limit movement of the adapter 30 within a predetermined plane.

It can be seen that, for a single adaptor 30, the number of positioning structures 40 for positioning the adaptor 30 may be one or more, when the number of positioning structures 40 for positioning the adaptor 30 is one, the positioning structures 40 may limit the movement of the adaptor 30 in the preset plane by means of their own structures, and when the number of positioning structures 40 for positioning the adaptor 30 is plural, the positioning structures 40 may limit the movement of the adaptor 30 in the preset plane by means of their own structures and the cooperation of their numbers. In addition, when the positioning structure 40 for positioning the adaptor 30 is plural, the plural positioning structures 40 may be disposed corresponding to the same conductive sheet 24 or may be disposed corresponding to at least two conductive sheets 24, in other words, the number of conductive sheets 24 corresponding to the positioning structure 40 among the plural conductive sheets 24 electrically connected to the adaptor 30 is less than or equal to the total number of the plural conductive sheets 24 electrically connected to the adaptor 30.

In the following, an example is given in which the adaptor 30 is electrically connected to two conductive sheets 24 belonging to different integrated bus bars 20, and one skilled in the art will readily understand, after reading the following description, embodiments in which the adaptor 30 is electrically connected to three or more conductive sheets 24.

One of the conductive sheets 24 is in positioning engagement with the adaptor 30 by one positioning structure 40, the other conductive sheet 24 is not in positioning engagement with the adaptor 30 by the positioning structure 40, or one of the conductive sheets 24 is in positioning engagement with the adaptor 30 by a plurality of positioning structures 40, the other conductive sheet 24 is not in positioning engagement with the adaptor 30 by the positioning structure 40, or one of the conductive sheets 24 is in positioning engagement with the adaptor 30 by at least one positioning structure 40, the number of corresponding positioning structures 40 of the two conductive sheets 24 can be equal or unequal.

In the embodiment of the application, after the adaptor 30 is matched with the conductive sheet 24 in a positioning manner, the fixed connection manner between the adaptor 30 and the conductive sheet 24 is not particularly limited, for example, the adaptor 30 and the conductive sheet 24 are welded and fixed, so that the adaptor 30 is not easy to separate from the conductive sheet 24, and even if the battery device 1 is subjected to vibration or external force, the conductive sheet 24 and the adaptor 30 can still maintain stable electrical connection, thereby further improving the stability of the battery device 1.

It is understood that, in the embodiment of the present application, the arrangement manner of the plurality of battery cells 12 of the battery pack 10 is not particularly limited, for example, the battery pack 10 may include at least one row of battery strings 14, the battery strings 14 include a plurality of battery cells 12 sequentially arranged along a first arrangement direction, and if the battery pack 10 includes a plurality of battery strings 14, the plurality of battery strings 14 may be sequentially arranged along a second arrangement direction, one of the first arrangement direction and the second arrangement direction is a length direction of the battery device 1, and the other is a width direction of the battery device 1.

Referring to fig. 3-9, in some embodiments, the first positioning portion and the second positioning portion are the positioning protrusion 42 and the first positioning hole 43, respectively, and then the first positioning portion is the positioning protrusion 42, the second positioning portion is the first positioning hole 43, or the first positioning portion is the first positioning hole 43, and the second positioning portion is the positioning protrusion 42, at least part of the positioning protrusion 42 protrudes from the conductive sheet 24 or the adaptor 30 along the direction perpendicular to the plane of the conductive sheet 24, and at least part of the positioning protrusion 42 is matched with the first positioning hole 43 to at least limit the movement of the adaptor 30 in a plurality of different directions. In the above-mentioned scheme, the first positioning hole 43 may be formed on the adapter 30, the positioning protrusion 42 is provided on the conductive sheet 24, and at least part of the positioning protrusion 42 protrudes from the conductive sheet 24 toward a side facing away from the battery cell 12 in a direction perpendicular to the plane in which the conductive sheet 24 is located, or the first positioning hole 43 may also be formed on the conductive sheet 24, the positioning protrusion 42 is provided on the adapter 30, and at least part of the positioning protrusion 42 protrudes from the adapter 30 toward a side facing toward the battery cell 12 in a direction perpendicular to the plane in which the conductive sheet 24 is located.

It can be seen that, through the cooperation of the positioning protrusion 42 and the first positioning hole 43, the positioning protrusion 42 may be at least partially located in the first positioning hole 43, so that the degree of freedom of the positioning protrusion 42 in the first positioning hole 43 is effectively limited, so that the positioning structure 40 can limit the movement of the adaptor 30 in different directions in the preset plane, so that the electrical connection between the adaptor 30 and the conductive sheet 24 is more convenient, and the convenience in assembling the battery device 1 is improved.

In addition, the design of the positioning protrusion 42 and the first positioning hole 43 makes the assembly process more visual and simple, and a worker can realize positioning matching between the adapter 30 and the conductive sheet 24 by only aligning the positioning protrusion 42 with the first positioning hole 43 for insertion, so that the assembly process of the adapter 30 and the conductive sheet 24 is simplified, and the assembly efficiency of the plurality of integrated busbar 20 is improved.

Illustratively, if the positioning structure 40 corresponding to the adapter 30 is one, the cross-sectional shapes of the positioning protrusion 42 and the first positioning hole 43 may be non-circular (e.g., elliptical, polygonal, etc.), respectively, and the peripheral wall of the first positioning hole 43 may be a closed ring shape or an open ring shape, so as to limit the movement and rotation of the adapter 30 in a preset plane by using the cooperation of the positioning protrusion 42 and the first positioning hole 43, and if the positioning structure 40 corresponding to the adapter 30 is plural, the cross-sectional shapes of the positioning protrusion 42 and the first positioning hole 43 may be more flexible, and may be circular or non-circular, and the peripheral wall of the first positioning hole 43 may be a closed ring shape or an open ring shape, so as to limit the movement and rotation of the adapter 30 in the preset plane by using the cooperation of the plurality of positioning protrusions 42 and the plurality of first positioning holes 43. It will be appreciated that a single locating feature 40 may be used to limit movement of the adapter 30 in a plurality of different directions when both the locating boss 42 and the first locating hole 43 are circular in cross-sectional shape, and that a plurality of locating features 40 cooperate to limit rotation of the adapter 30 in a predetermined plane, while a single locating feature 40 may be used to limit movement of the adapter 30 in a plurality of different directions and to limit rotation of the adapter 30 in a predetermined plane when both the locating boss 42 and the first locating hole 43 are non-circular in cross-sectional shape, and that a plurality of locating features 40 cooperate to further limit rotation of the adapter 30 in a predetermined plane.

Referring to fig. 3-7, in some embodiments, the first positioning hole 43 is located at a corner of the conductive sheet 24 or the adaptor 30 and penetrates through two adjacent edges thereof, for example, the first positioning hole 43 is located at a corner of the conductive sheet 24 and the first positioning hole 43 penetrates through two adjacent edges of the conductive sheet 24, for example, the first positioning hole 43 is located at a corner of the adaptor 30 and the first positioning hole 43 penetrates through two adjacent edges of the adaptor 30. The first positioning hole 43 is formed as an opening with a notch at the corner of the conductive sheet 24 or the adaptor 30, so that the material consumption for manufacturing the first positioning hole 43 is reduced, the cost is saved, and the positioning protrusion 42 can be matched with the first positioning hole 43 through the notch or the positioning protrusion 42 is matched with the first positioning hole 43 along the direction perpendicular to the plane of the conductive sheet 24, so that the assembly of the positioning protrusion 42 and the first positioning hole 43 is more convenient, and the assembly process of the adaptor 30 and the conductive sheet 24 is simplified. It can be understood that when the positioning structures 40 corresponding to the adaptor 30 are plural, if the positioning structures 40 are located at different corner positions, the positioning structures 40 are arranged in a scattered manner, and the notches of the first positioning holes 43 are oriented differently, so that the adaptor 30 is better limited to rotate in the preset plane by using the cooperation of the positioning structures 40.

Illustratively, the first positioning hole 43 is located at a corner of the conductive sheet 24, the positioning protrusion 42 may be located at a corner of the adapter 30, and the first positioning hole 43 is located at a corner of the adapter 30, the positioning protrusion 42 may be located at a corner of the conductive sheet 24, for example, the conductive sheet 24 is stamped with the positioning protrusion 42.

Referring to fig. 3-7, in some embodiments, the hole wall of the first positioning hole 43 includes a first wall 430 and a second wall 432 that are sequentially disposed along the circumferential direction and are connected in a bending manner, and the first wall 430 and the second wall 432 respectively extend along a straight line.

It can be seen that one end of the first wall 430 and one end of the second wall 432 are connected, and the other end of the first wall 430 and the second wall 432 are spaced apart, so that the first positioning hole 43 is formed as an opening with a notch, and the first wall 430 and the second wall 432 extend along a straight line, so that the structure of the first positioning hole 43 is relatively simple and is convenient for processing and manufacturing. It will be appreciated that the outer peripheral wall of the positioning boss 42 may include a third wall and a fourth wall which are sequentially disposed in the circumferential direction and are bent to be connected, and when the positioning boss 42 is fitted in the first positioning hole 43, the third wall is abutted against the first wall 430, and the fourth wall is abutted against the second wall 432, and the outer peripheral wall of the positioning boss 42 is formed in a square structure, for example.

For example, the first positioning hole 43 includes a first wall 430 and a second wall 432, one end of the first wall 430 is connected to one end of the second wall 432, the other end of the first wall 430 and the other end of the second wall 432 are spaced apart, and the extending directions of the first wall 430 and the second wall 432 are perpendicular to each other, so that the hole wall of the first positioning hole 43 is formed into an "L" shape, which is simple in structure and convenient for processing and manufacturing.

Referring to fig. 8 and 9, in some embodiments, the first positioning hole 43 is located on the conductive sheet 24 or the adaptor 30 and is spaced apart from the edge thereof. For example, the first positioning hole 43 is located on the conductive sheet 24, and the first positioning hole 43 is spaced from the edge of the conductive sheet 24, and for example, the first positioning hole 43 is located on the adaptor 30, and the first positioning hole 43 is spaced from the edge of the adaptor 30.

It can be seen that the first positioning holes 43 are spaced from the edges of the conductive sheet 24 or the adaptor 30, i.e. the first positioning holes 43 are located inside the conductive sheet 24 or the adaptor 30, and the first positioning holes 43 are not easily contacted by other components, so that the first positioning holes 43 are not easily damaged, thereby facilitating improvement of the stability of electrical connection between the adaptor 30 and the conductive sheet 24.

Referring to fig. 8 and 9, in some embodiments, the positioning protrusion 42 is integrally formed with one of the conductive sheet 24 and the adapter 30, or the positioning protrusion 42 is fittingly connected to one of the conductive sheet 24 and the adapter 30.

It can be seen that the integrally formed positioning protrusion 42 can be tightly combined with one of the conductive sheet 24 and the adaptor 30 to form a whole, so that the strength and stability of the whole structure are improved, the matching stability of the positioning protrusion 42 and the first positioning hole 43 is better, the processing difficulty of the positioning protrusion 42 can be reduced by the integrally formed positioning protrusion 42, the splicing and assembling processes of a plurality of components in the traditional process are avoided, the manufacturing process is simplified, and the processing efficiency of the positioning protrusion 42 is improved, or the positioning protrusion 42 is assembled and connected with one of the conductive sheet 24 and the adaptor 30, the assembled and connected positioning protrusion 42 can be selected, installed and adjusted according to actual requirements, the assembled and connected positioning protrusion 42 can be suitable for the adaptor 30 or the conductive sheet 24 with different sizes, and meanwhile, the size of the positioning protrusion 42 can be adjusted according to actual requirements by staff, so that the positioning protrusion 42 has higher flexibility.

It will be appreciated that the locating boss 42 may be located on the adapter 30 with the first locating hole 43 located on the conductive tab 24 or the locating boss 42 may be located on the conductive tab 24 with the first locating hole 43 located on the adapter 30. It can be seen that the above arrangement makes the setting positions of the positioning protrusion 42 and the first positioning hole 43 more flexible, so as to be convenient for adapting to different installation environments.

Referring to fig. 8 and 9, in some embodiments, one of the conductive tab 24 and the adapter 30 is stamped with the locating boss 42, or one of the conductive tab 24 and the adapter 30 is removably coupled to the locating boss 42.

Therefore, the positioning protrusion 42 can be formed by stamping, which is an efficient processing method, and the positioning protrusion 42 with the same shape and size can be mass produced in a short time, so that the processing efficiency of the positioning protrusion 42 can be improved, meanwhile, the plate material can be fully utilized by stamping, the waste of materials can be reduced, the utilization rate of materials can be improved to the greatest extent, and the production cost can be reduced, or the positioning protrusion 42 can be detachably connected with one of the conductive sheet 24 and the adapter 30, when the positioning protrusion 42 is damaged in long-time use, the positioning protrusion 42 can be replaced for maintenance, the whole part is not required to be replaced, the maintenance cost can be reduced conveniently, and meanwhile, the positioning protrusions 42 with different shapes, sizes or materials can be replaced conveniently by staff according to different application scenes or client requirements so as to adapt to different requirements.

Referring to fig. 9, in some embodiments, one of the conductive plate 24 and the adapter 30 is formed with a threaded hole 45, and a portion of the positioning boss 42 is screwed into the threaded hole 45 and another portion is provided protruding.

It can be seen that the positioning protrusion 42 is screwed to one of the conductive sheet 24 and the adaptor 30, so that the assembly and disassembly modes of the positioning protrusion 42 are simpler, the working efficiency of assembling and disassembling the positioning protrusion 42 by a worker is improved, and meanwhile, the connection strength of the positioning protrusion 42 can be enhanced by screwing, so that the connection strength of the positioning protrusion 42 and one of the conductive sheet 24 and the adaptor 30 is higher, and the positioning protrusion 42 is not easy to break away in use, so that the positioning protrusion 42 is more stable in use.

Illustratively, the positioning boss 42 is a threaded fastener (such as a bolt), a threaded shaft of the bolt can be in threaded engagement with one of the conductive plate 24 and the adapter 30, and a head of the bolt can protrude from the threaded hole 45, so that the head of the bolt can be in positioning engagement with the first positioning hole 43, so as to improve the stability of the engagement of the positioning boss 42 and the first positioning hole 43.

Referring to fig. 3-9, in some embodiments, the adaptor 30 includes a transition portion 32 and two electrical connection portions 34, wherein two ends of the transition portion 32 are respectively connected to the two electrical connection portions 34, and the two electrical connection portions 34 are respectively electrically connected to the two conductive sheets 24. Wherein the transition portion 32 is provided with a stretch deformable cushioning portion 320 and/or wherein a stretch deformable cushioning portion 320 is connected between each electrical connection portion 34 and the transition portion 32.

It can be seen that the transition portion 32 is located between the two electrical connection portions 34, and the transition portion 32 is provided with a stretchable and deformable buffer portion 320, when the battery unit 12 expands, the buffer portion 320 can buffer deformation stress generated by the expansion of the battery unit 12, and can relieve stress caused by the expansion of the battery unit 12, the buffer portion 320 can follow the expansion of the battery unit 12 to generate certain stretching deformation, so that the adaptor 30 is not easy to generate larger deformation, and meanwhile, when the battery device 1 vibrates, the buffer portion 320 can buffer impact on the adaptor 30 generated by vibration, so that the setting position of the adaptor 30 can be more stable, the stability of the adaptor 30 in operation is improved, and/or, a stretchable and deformable buffer portion 320 is arranged between each electrical connection portion 34 and the transition portion 32, and the buffer portion 320 can effectively buffer deformation stress generated by the expansion of the battery unit 12 and impact generated by vibration of the battery device 1, so that larger deformation is not easy to generate between the electrical connection portion 34 and the transition portion 32, so that the relative position of the electrical connection portion 34 and the transition portion 32 is more stable, and the stability of the adaptor 30 in operation is improved.

In the above-mentioned scheme, no matter the transition portion 32 is provided with the buffer portion 320, or the buffer portion 320 is connected between each electrical connection portion 34 and the transition portion 32, the arrangement of the buffer portion 320 can reduce the pulling between the adaptor 30 and the conductive sheet 24 caused by the expansion of the battery cell 12, which is beneficial to improving the electrical connection reliability of the adaptor 30 and the conductive sheet 24.

Referring to fig. 5 and 6, in some embodiments, the edge of the conductive sheet 24 spaced from and adjacent to the adaptor 30 has a protrusion 240, the edge of the adaptor 30 has a relief notch 36, the relief notch 36 is opposite to the protrusion 240, and the width of the relief notch 36 is larger than the width of the protrusion 240.

It can be seen that the conductive sheet 24 with the protruding portion 240 is not matched with the adaptor 30 by the positioning structure 40, and is not directly electrically connected with the adaptor 30, the protruding portion 240 is formed on one side of the conductive sheet 24 facing the adaptor 30, and the protruding portion 240 is opposite to the avoiding notch 36, so that the distance between the adaptor 30 and the adjacent conductive sheet 24 is kept in a stable range, thereby being convenient for meeting the electrical gap requirement, being not easy to generate arc discharge or short circuit, and being convenient for improving the working stability of the adaptor 30.

In addition, the width (e.g., L2 in fig. 6) of the relief notch 36 is greater than the width (e.g., L1 in fig. 6) of the protrusion 240, so that there is sufficient electrical clearance between the adapter 30 and the adjacent conductive sheet 24, and even if there is a dimensional deviation in the manufacturing process of the protrusion 240 or an assembly error in the relative positions of the adapter 30 and the adjacent conductive sheet 24, the distance between the adapter 30 and the adjacent conductive sheet 24 can be maintained within a relatively stable range, so that arcing or short-circuiting between the adjacent conductive sheet 24 and the adapter 30 is not likely to occur.

Referring to fig. 7-11, in some embodiments, a plurality of second positioning holes 38 are formed in the adapter 30, a third positioning hole 242 is formed in the conductive plate 24, a positioning portion 122 is formed on the post 120 of the battery cell 12, and the second positioning holes 38 and the corresponding third positioning holes 242 are opposite to the positioning portion 122.

It can be seen that the second positioning hole 38 and the corresponding third positioning hole 242 are opposite to the positioning portion 122, so that a worker or a detection mechanism can observe the positioning portion 122 through the second positioning hole 38 and the third positioning hole 242, thereby judging whether the adaptor 30 and the conductive sheet 24 are at the normal installation position, so that the installation positions of the battery cell 12, the adaptor 30 and the conductive sheet 24 are more accurate, the welding treatment of the subsequent battery cell 12, the adaptor 30 and the conductive sheet 24 is facilitated, the risk of cold welding is reduced, and the reliability of the battery device 1 is improved.

Illustratively, the battery device 1 includes a plurality of battery packs 10 and a plurality of integrated bus bars 20, the plurality of integrated bus bars 20 and the plurality of battery packs 10 are in one-to-one correspondence, a worker may first place the integrated bus bars 20 on the corresponding battery packs 10, after observing the positioning portions 122 through the third positioning holes 242 by the worker or the detection mechanism, indicate that the conductive plates 24 are in the correct mounting positions, then weld the integrated bus bars 20 to the corresponding battery packs 10, so that the plurality of battery cells 12 can maintain stable electrical connection, then fit the adapter 30 to the plurality of conductive plates 24 belonging to different integrated bus bars 20, after observing the positioning portions 122 through the second positioning holes 38 and the third positioning holes 242 by the worker or the detection mechanism, indicate that the adapter 30 is in the correct mounting position, and then weld the adapter 30 to the plurality of conductive plates 24 belonging to different integrated bus bars 20, so that the plurality of battery packs 10 can maintain stable electrical connection.

Referring to fig. 3-9, in some embodiments, two conductive plates 24 electrically connected to the adaptor 30 are disposed at intervals along a first direction, the conductive plates 24 are respectively aligned with the adaptor 30 by a positioning structure 40, the adaptor 30 has a first center line extending along the first direction and a second center line extending along a second direction, the positioning structures 40 corresponding to the two conductive plates 24 electrically connected to the adaptor 30 are respectively located at two sides of the first center line, the positioning structures 40 are respectively located at two sides of the second center line, the second direction is perpendicular to the first direction, and both the two directions are parallel to a plane where the conductive plates 24 are located.

It can be seen that the second direction is perpendicular to the first direction, and both the second direction and the first direction are parallel to the plane where the conductive sheet 24 is located, the plurality of positioning structures 40 corresponding to the adaptor 30 are respectively located at two sides of the first center line (e.g., L4 in fig. 7), and the plurality of positioning structures 40 are respectively located at two sides of the second center line (e.g., L3 in fig. 7), so that the positioning structures 40 approximately represent a diagonal arrangement form, which is beneficial to improving the positioning reliability of the entire adaptor 30 and improving the stability of the electrical connection between the adaptor 30 and the conductive sheet 24.

Illustratively, each of the two conductive sheets 24 electrically connected to the adaptor 30 and the adaptor 30 are respectively aligned and matched by the alignment structures 40, the plurality of conductive sheets 24 are arranged at intervals along the width direction of the battery device 1, the first center line of the adaptor 30 extends along the width direction of the battery device 1, the second center line of the adaptor 30 extends along the length direction of the battery device 1, the two alignment structures 40 are respectively located at two sides of the first center line, and the two alignment structures 40 are respectively located at two sides of the second center line, so that the two alignment structures 40 approximately represent a diagonal arrangement form, and the stability of the electrical connection between the adaptor 30 and the conductive sheets 24 is improved.

Referring to fig. 3-6, in some embodiments, the integrated busbar 20 further includes a sampling circuit board 70 and a connector 72, the sampling circuit board 70 is fixedly disposed on the insulating member 22, and the sampling circuit board 70 is disposed on one side of the plurality of conductive plates 24, the connector 72 is disposed on one end of the sampling circuit board 70, the sampling circuit board 70 is electrically connected with the connector 72, the sampling circuit board 70 is electrically connected with each conductive plate 24 respectively, the sampling circuit board 70 can collect the temperature and voltage of the battery cells 12, the connector 72 can collect the temperature and voltage data of the battery cells 12 transmitted by the sampling circuit board 70, and the connector 72 can transmit the collected data to other components, so as to satisfy the control strategy of the battery management system of the battery device 1, and improve the operation stability of the battery device 1.

It will be appreciated that the integrated busbar 20 may further include a plurality of sampling circuit boards 70 and a plurality of connectors 72, for example, the plurality of battery cells 12 in the battery pack 10 may be sequentially arranged along the length direction and the width direction of the battery device 1, so that the plurality of battery cells 12 may be arranged in a plurality of rows and a plurality of columns, and then the plurality of conductive sheets 24 may also be arranged in a plurality of rows and a plurality of columns, and the plurality of sampling circuit boards 70 may be respectively disposed between the plurality of battery cells 12 sequentially arranged along the length direction of the battery device 1, or the plurality of sampling circuit boards 70 may be respectively disposed between the plurality of battery cells 12 sequentially arranged along the width direction of the battery device 1, so that the plurality of sampling circuit boards 70 may be more conveniently electrically connected with each conductive sheet 24, so as to facilitate meeting the battery management system control policy of the battery device 1.

Referring to fig. 3-7, in some embodiments, the conductive sheet 24 is further formed with a fourth positioning hole 244, the insulating member 22 is formed with an opening through which a positioning post of the fixture is inserted, and the positioning post of the fixture is adapted to cooperate with the fourth positioning hole 244 through the opening, so that the assembly of the insulating member 22 and the conductive sheet 24 is more convenient, the setting position of the conductive sheet 24 on the insulating member 22 is more stable, and the reliability of the integrated busbar 20 is convenient to improve.

In some embodiments, the insulating member 22 is formed by film forming, the processing technology of film forming is simpler, the cost of the film forming insulating member 22 is lower, meanwhile, the film forming insulating member 22 and the conductive sheet 24 can be fixed by hot pressing, the efficiency of the hot pressing process is higher, the time required for fixing the insulating member 22 and the conductive sheet 24 is reduced, and the working efficiency is improved.

In a second aspect, an embodiment of the present application provides an electrical consumer 2 comprising the battery device 1 of the first aspect.

In the above technical solution, since the battery device 1 is convenient to assemble, and the battery device 1 has good stability, so that the assembly of the electric device 2 is more convenient, and the stability of the electric device 2 can be improved.

A specific embodiment of the battery device 1 of the present application is described below.

Embodiment 1,

Referring to fig. 3-7, 10 and 11, the battery device 1 includes a plurality of battery packs 10, a plurality of integrated bus bars 20 and an adapter 30.

The plurality of battery packs 10 are sequentially arranged along the first direction, each battery pack 10 includes a plurality of battery cells 12, each battery cell 12 has a post 120, and the corresponding post 120 is formed as an output terminal of the battery pack 10.

The integrated busbar 20 and the battery packs 10 are in one-to-one correspondence, each integrated busbar 20 comprises an insulating piece 22 and a plurality of conducting strips 24, the insulating piece 22 is arranged at one end of the output end of the battery pack 10, and the conducting strips 24 are fixedly arranged on the insulating piece 22 and are electrically connected with the corresponding output end. Two sets of battery packs 10 and corresponding two integrated bus bars 20 are shown in fig. 3 and 5.

The adaptor 30 is arranged at one side of the integrated busbar 20 facing away from the battery pack 10, the adaptor 30 is respectively and electrically connected with two conductive sheets 24 belonging to different integrated busbars 20 so as to electrically connect two adjacent battery packs 10, the two conductive sheets 24 electrically connected with the adaptor 30 are arranged at intervals along a first direction, each conductive sheet 24 is respectively and fixedly matched with the adaptor 30 through a positioning structure 40, the adaptor 30 is provided with a first central line extending along the first direction and a second central line extending along a second direction, the positioning structures 40 corresponding to the two conductive sheets 24 electrically connected with the adaptor 30 are respectively positioned at two sides of the first central line and are respectively positioned at two sides of the second central line, and the second direction is perpendicular to the first direction and is parallel to a plane where the conductive sheets 24 are positioned; the positioning structure 40 comprises a positioning protrusion 42 and a first positioning hole 43, the positioning protrusion 42 is integrally formed on the conductive sheet 24 and protrudes out of the conductive sheet 24, the positioning protrusion 42 is located at a corner of the conductive sheet 24, the first positioning hole 43 is located at a corner of the adaptor 30, the first positioning hole 43 penetrates through two adjacent edges of the adaptor 30, a hole wall of the first positioning hole 43 comprises a first wall 430 and a second wall 432 which are sequentially arranged along the circumferential direction and are connected in a bending manner, the first wall 430 and the second wall 432 extend along straight lines respectively, the positioning protrusion 42 is matched with the first positioning hole 43 to limit the movement of the adaptor 30 in a plurality of different directions in a preset plane, and the two positioning structures 40 can limit the rotation of the adaptor 30 in the preset plane in a matched manner.

The adaptor 30 further comprises a transition part 32 and two electric connection parts 34, two ends of the transition part 32 are respectively connected with the two electric connection parts 34, the two electric connection parts 34 are respectively electrically connected with the two conductive sheets 24, a protruding part 240 is arranged at the edge of the conductive sheet 24 which is spaced from the adaptor 30 and is adjacent to the adaptor 30, an avoidance notch 36 is arranged at the edge of the adaptor 30, the avoidance notch 36 is opposite to the protruding part 240, the width of the avoidance notch 36 is larger than that of the protruding part 240, a plurality of second positioning holes 38 are formed in the adaptor 30, a third positioning hole 242 is formed in the conductive sheet 24, a positioning part 122 is arranged on the pole 120 of the battery cell 12, and the second positioning holes 38 are opposite to the corresponding third positioning holes 242.

Embodiment II,

Referring to fig. 3-6 and 8, the structure of the battery device 1 provided in the second embodiment is substantially the same as that of the battery device 1 provided in the first embodiment, except that the first positioning hole 43 is located on the conductive sheet 24, and the first positioning hole 43 is spaced from the edge of the conductive sheet 24, the adaptor 30 is stamped with a positioning protrusion 42, and the positioning protrusion 42 is matched with the first positioning hole 43 to limit the movement of the adaptor 30 in a plurality of different directions within a predetermined plane.

Third embodiment,

Referring to fig. 3-6 and fig. 9-11, the structure of the battery device 1 provided in the third embodiment is substantially the same as that of the battery device 1 provided in the first embodiment, except that the first positioning hole 43 is located on the conductive sheet 24, the first positioning hole 43 is spaced from the edge of the conductive sheet 24, the adaptor 30 is formed with a threaded hole 45, a portion of the positioning protrusion 42 is screwed into the threaded hole 45, another portion of the positioning protrusion is protruding, and a portion of the positioning protrusion 42 protruding from the adaptor 30 is engaged with the first positioning hole 43 to limit the movement of the adaptor 30 in a plurality of different directions within a predetermined plane.

It can be seen that, in the first to third embodiments, the two conductive sheets 24 electrically connected to the adaptor 30 can be respectively matched and positioned by the positioning structure 40, so that the electrical connection of the plurality of integrated busbar 20 can be realized without using additional positioning elements, the assembly process of the electrical connection between the adaptor 30 and the conductive sheets 24 can be reduced, the assembly time of the electrical connection between the plurality of integrated busbar 20 can be saved, the assembly efficiency can be improved, and the movement and rotation of the adaptor 30 in the preset plane can be limited by the plurality of positioning structures 40, so that the electrical connection between the adaptor 30 and the conductive sheets 24 is more convenient, and the reliability of the battery device 1 can be improved.

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The above is only a preferred embodiment of the present application, and is not intended to limit the present application, and all the embodiments and alternative embodiments of the present application may be combined with each other to form new technical solutions unless specifically described. All technical features and optional technical features of the application may be combined with each other to form new technical solutions, unless specified otherwise. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (13)

1. A battery device, characterized by comprising:

The battery pack comprises a plurality of groups of battery packs, wherein the groups of battery packs are sequentially arranged, each group of battery pack comprises a plurality of battery cells, each battery cell is provided with a pole column, and the pole column corresponds to the output end of the battery pack;

The integrated busbar comprises an insulating part and a plurality of conducting plates, wherein the insulating part is arranged at one end of the battery pack where the output end is located, and the conducting plates are fixedly arranged on the insulating part and are electrically connected with the corresponding output ends;

The switching piece is arranged on one side of the integrated busbar, which deviates from the battery pack, and is electrically connected with a plurality of conducting strips belonging to different integrated busbars respectively, so that a corresponding plurality of groups of battery packs are electrically connected, at least one of the conducting strips electrically connected with the switching piece is in positioning fit with the switching piece through at least one positioning structure so as to limit the movement of the switching piece in a preset plane, the preset plane is parallel to the plane where the conducting strips are located, the positioning structure comprises a first positioning part and a second positioning part, the first positioning part is arranged on the switching piece, and the second positioning part is arranged on the conducting strip.

2. The battery device according to claim 1, wherein the first positioning portion and the second positioning portion are a positioning protrusion and a first positioning hole, respectively, at least a portion of the positioning protrusion protrudes from the conductive sheet or the adapter along a direction perpendicular to a plane in which the conductive sheet is located, and is engaged with the first positioning hole to at least limit movement of the adapter in a plurality of different directions.

3. The battery device of claim 2, wherein the first positioning hole is located at a corner of the conductive sheet or the adapter and penetrates through adjacent two edges thereof.

4. The battery device according to claim 3, wherein the hole wall of the first positioning hole includes a first wall and a second wall which are disposed in sequence in the circumferential direction and are connected by bending, and the first wall and the second wall extend along straight lines, respectively.

5. The battery device of claim 2, wherein the first positioning hole is located on the conductive sheet or the adapter member and is spaced apart from an edge thereof.

6. The battery device according to claim 2, wherein,

The positioning protrusion is integrally formed on one of the conductive sheet and the adapter, or

The positioning protrusion is assembled and connected to one of the conductive sheet and the adapter.

7. The battery device according to claim 6, wherein,

One of the conductive sheet and the adapter is stamped with the positioning protrusion, or

The one of the conductive sheet and the adapter is detachably connected with the positioning protrusion.

8. The battery device according to claim 7, wherein said one of said conductive plate and said adapter is formed with a threaded hole, and a part of said positioning boss is screwed into said threaded hole and the other part is provided protruding.

9. The battery device according to claim 1, wherein the adapter comprises a transition portion and two electrical connection portions, both ends of the transition portion are respectively connected with the two electrical connection portions, the two electrical connection portions are respectively electrically connected with the two conductive sheets,

The transition part is provided with a buffer part which can be stretched and deformed and/or,

And a buffer part which can be stretched and deformed is connected between each electric connection part and the transition part.

10. The battery device of claim 1, wherein the edge of the conductive sheet spaced from and adjacent to the adapter has a tab, the edge of the adapter has a relief notch, the relief notch is opposite the tab, and the relief notch has a width greater than the tab width.

11. The battery device according to claim 1, wherein a plurality of second positioning holes are formed in the adapter, a third positioning hole is formed in the conductive sheet, a positioning portion is formed in a pole of the battery cell, and the second positioning hole and the corresponding third positioning hole are opposite to the positioning portion.

12. The battery device of any one of claims 1-11, wherein two of the conductive tabs electrically connected to the adapter are spaced apart in a first direction and are respectively in positioning engagement with the adapter by the positioning structure,

The adaptor is provided with a first central line extending along the first direction and a second central line extending along the second direction, the positioning structures corresponding to the two conductive sheets electrically connected with the adaptor are respectively positioned on two sides of the first central line and on two sides of the second central line, the second direction is perpendicular to the first direction, and the two positioning structures are parallel to the plane where the conductive sheets are positioned.

13. An electrical device comprising a battery device according to any one of claims 1-12.