CN220710593U

CN220710593U - Battery and electricity utilization device

Info

Publication number: CN220710593U
Application number: CN202420057198.6U
Authority: CN
Inventors: 李�杰; 王嘉富; 吴泽彬; 韦兴; 彭美乐
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2024-01-10
Filing date: 2024-01-10
Publication date: 2024-04-02
Anticipated expiration: 2034-01-10

Abstract

The application relates to a battery and an electric device, and belongs to the technical field of batteries. The battery comprises a battery monomer group, a first end plate assembly and a wire harness isolation plate assembly, wherein the battery monomer group comprises a plurality of battery monomers; the first end plate assembly is arranged at one end of the battery cell group in the first direction; the wire harness isolation plate assembly is arranged at one end of the battery unit group in a second direction, and the second direction is perpendicular to the first direction; the wire harness isolation board assembly is provided with a first end and a second end which are opposite, the first end is provided with a first foolproof part, the first end board assembly is provided with a second foolproof part which is matched with the first foolproof part, the first foolproof part protrudes out of the first end along the first direction, the second foolproof part is a containing groove, and an opening of the containing groove faces the wire harness isolation board assembly and penetrates through the first end board assembly along the first direction. According to the technical scheme, the yield of battery production and assembly can be effectively improved.

Description

Battery and electricity utilization device

Technical Field

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

Background

Energy conservation and emission reduction are key to sustainable development of the automobile industry, and electric vehicles become an important component of sustainable development of the automobile industry due to the energy conservation and environmental protection advantages of the electric vehicles. For electric vehicles, battery technology is an important factor in the development of the electric vehicles.

In addition to improving the performance of batteries, improving the yield in battery manufacturing is a non-negligible problem in the development of battery technology. In some types of batteries, the fit between the harness isolation plate assembly and the end plate assembly is one and only one form of azimuthal fit, i.e., the mounting fool-proof effect is directly provided. However, in some other types of batteries, due to factors such as space limitation and structural layout, the matching relationship between the end plate assembly and the wire harness isolation plate assembly cannot be foolproof, and the wire harness isolation plate assembly is easy to integrally reversely mount on the end plate assembly on a production line, so that the positions of electrodes of the wire harness isolation plate assembly and the battery monomer group are not corresponding, the battery is scrapped, and the yield is lowered.

Disclosure of Invention

The purpose of this application is to above-mentioned problem, provides a battery and power consumption device, can improve the yield of battery production assembly, effectively reduces the disability rate that leads to because of pencil division board subassembly is contra-adorned in the battery production process, makes above-mentioned problem obtain improving.

In a first aspect, the present application provides a battery including a battery cell stack, a first end plate assembly, and a harness isolation plate assembly. The battery cell group comprises a plurality of battery cells; the first terminal plate component is arranged at one end of the battery cell group in the first direction; the wire harness isolation board assembly is arranged at one end of the battery unit group in the second direction, and the second direction is perpendicular to the first direction. In the first direction, the wire harness isolation board assembly is provided with a first end and a second end which are opposite, the first end is provided with a first fool-proof part, and the first end board assembly is provided with a second fool-proof part which is matched with the first fool-proof part; the first fool-proof part is a protruding part protruding out of the first end along the first direction, the second fool-proof part is a containing groove, and an opening of the containing groove faces the wire harness isolation board assembly; the receiving slot extends through the first end plate assembly in the first direction.

In the technical scheme of this embodiment, pencil division board subassembly and first terminal board subassembly must be located the outside of two adjacent sides of battery monomer group, through setting up first foolproof portion on the pencil division board subassembly to correspond on first terminal board subassembly set up the second foolproof portion that matches with first foolproof portion, rely on the assembly in-process, the assembly of first terminal board subassembly and pencil division board subassembly is through first foolproof portion and the second foolproof portion's mutually supporting of limiting unique assembly scheme. Specific: under the condition that the assembly positions of the battery unit group, the first end plate assembly and the wire harness isolation plate assembly are correct (namely, the first fool-proof part and the second fool-proof part are matched in a aligned mode), if the wire harness isolation plate assembly rotates 180 degrees along the plane, the first fool-proof part and the second fool-proof part are dislocated and are respectively positioned at two opposite ends of the battery unit group in the first direction.

Based on this basic concept, in some possible embodiments, fool-proofing may be achieved by an operator intentionally making a judgment and adjusting the harness isolation plate assembly, adjusting the first end and the first fool-proofing portion to an orientation proximate to the first end plate assembly; in some possible embodiments, the fool-proof implementation may be that, when the assembly is incorrectly aligned, the first fool-proof portion interferes with the battery unit group or other components of the battery, and/or the second fool-proof portion interferes with the second end of the harness isolation board assembly, that is, the harness isolation board assembly cannot be smoothly installed in place, and cannot be simultaneously conducted with all the electrode terminals of the battery unit group to form a closed circuit, so that only when the first fool-proof portion and the second fool-proof portion are aligned, the harness isolation board assembly can be installed in place, and meanwhile, the electrical connection relationship between the harness isolation board assembly and the battery unit group is correct, so that the probability of reversely installing the harness isolation board assembly is effectively reduced, and the probability of battery rejection due to reversely installing the harness isolation board assembly is effectively and greatly reduced.

In addition, the first fool-proof part is a protruding part protruding out of the first end along the first direction, the second fool-proof part is a containing groove, an opening of the containing groove faces the wire harness isolation board assembly, and the containing groove penetrates through the first end board assembly along the first direction. The accommodating groove avoids the protruding part, also provides a storage accommodating space for the protruding part and limits the protruding part, simplifies the self structures of the first fool-proof part and the second fool-proof part, reduces the manufacturing difficulty of the first end plate assembly and the wire harness isolation plate group, and is beneficial to improving the production efficiency and the assembly efficiency. The opening of the accommodating groove faces the wire harness isolation plate assembly, so that the assembly direction of the wire harness isolation plate assembly and the first end plate assembly is in the second direction, and the wire harness isolation plate assembly can be directly placed from one end of the second direction, namely, the wire harness isolation plate assembly is integrally placed outside one end of the battery unit group and the first end plate assembly in the second direction; and after the battery monomer group, the first end plate assembly and other structural members for fixing and positioning the battery monomer group are assembled, the wiring harness isolation plate assembly is installed, so that the assembly process and the assembly operability are considered.

Optionally, in some embodiments, the wire harness isolation board assembly includes a wire harness isolation board, and the first fool-proof portion is provided on the wire harness isolation board.

In the technical scheme of this application embodiment, utilize the wiring harness division board of first end board subassembly and wiring harness division board subassembly to realize prevent slow-witted, the wiring harness division board is as the important structure of wiring harness division board subassembly, and the wiring harness division board is the base member of arranging other important parts, also is the part of direct contact with battery monomer group. The first foolproof part is arranged on the isolation board, the distance between the first foolproof part and the surface of the wire harness isolation board component, which faces the battery monomer group, can be controlled in a proper range to a certain extent, and the size of the first end board component in the second direction can be controlled in a proper range to a certain extent, so that the control of the volume and the improvement of the battery energy density are facilitated.

Optionally, in some embodiments, the harness isolation plate and the first fool-proof portion are integrally formed.

In the technical scheme of this embodiment, pencil division board and first prevent slow-witted portion integrated into one piece, integrated into one piece's manufacturing degree of difficulty is low, structural strength is high, and the thickness of pencil division board is also generally thinner, and integrated into one piece can save the step of trompil on the pencil division board, is favorable to guaranteeing the overall structural strength of pencil division board and first prevent slow-witted portion, also can effectively avoid the problem that the trompil leads to the intensity to reduce on the pencil division board.

Optionally, in some embodiments, the first end plate assembly includes a first end plate and a first mount disposed at an end of the first end plate adjacent to the harness isolation plate assembly in the second direction;

the wire harness isolation plate comprises a first surface facing away from the battery unit group along a second direction; the second fool-proof part is arranged on the first mounting seat, and at least part of the first mounting seat protrudes out of the first surface.

In the technical scheme of this application embodiment, after the assembly is put in place, first end plate and first mount pad are common with the battery monomer group correspond the first terminal surface contact of the one end of first terminal plate subassembly in first direction, realize spacing and the insulation of first terminal surface. And because at least part of the first mounting seat protrudes out of the first surface, the first end plate assembly can limit the end face of the wire harness isolation plate corresponding to the first end.

Optionally, in some embodiments, the harness isolation plate assembly includes a first output pole, the first end plate assembly further includes a first output pole mount, the first output pole mount being provided to the first end plate; the first output electrode base and the first mounting seat are integrally formed.

In the technical scheme of the embodiment of the application, the first output electrode also protrudes from the first end along the first direction, and the projection of the part of the first output electrode protruding from the first end on the second direction falls on the first end plate assembly. Through with first output pole base and first mount pad integrated into one piece, install the two in first end plate again with two are whole, simplify assembly structure and assembly process.

Optionally, in some embodiments, the battery further includes a second end plate assembly, the first end plate assembly and the second end plate assembly being disposed at both ends of the battery cell stack along the first direction;

in a second direction, the harness isolation plate includes a first surface facing away from the battery cell stack, and at least a portion of the second end plate assembly protrudes from the first surface.

In the technical scheme of this application embodiment, after the assembly is put in place, the second end plate subassembly contacts with the second terminal surface of the one end of battery monomer group corresponding second end plate subassembly in first direction, realizes spacing and the insulation of second terminal surface. And because at least part of the second end plate assembly protrudes out of the first surface, the second end plate assembly can limit the end face of the wire harness isolation plate corresponding to the first end.

Preferably, the interference scheme is adopted, so that judgment can be omitted, the overall structure and the height of the second end plate assembly are the same as those of the first end plate assembly, and the difference is that only a through containing groove facing the wire harness isolation plate is formed in the top, so that when the wire harness isolation plate is reversely assembled, the first foolproof part interferes with the top of the second end plate assembly, and the first end of the wire harness isolation plate cannot fall on.

The second end is provided with a third fool-proof part, and the second end plate assembly is provided with a fourth fool-proof part which is matched with the third fool-proof part.

In the technical scheme of the embodiment of the application, the first end plate assembly and the second end plate assembly jointly define an arrangement area of the battery unit group in the first direction so as to respectively realize limit and insulation of the first end face and the second end face of the battery unit group in the first direction. Along the second direction, at least part projection of the third fool-proof part falls on the fourth fool-proof part, is the same as the cooperation principle of the first fool-proof part and the second fool-proof part, and only when the first fool-proof part is aligned with the second fool-proof part and the third fool-proof part is aligned with the fourth fool-proof part, can the wiring harness isolation board assembly be installed in place, and meanwhile, the electric connection relation between the wiring harness isolation board assembly and the battery monomer group is correct, so that the probability of reversely assembling the wiring harness isolation board assembly is effectively reduced, and the probability of scrapping a battery due to reversely assembling the wiring harness isolation board assembly is effectively and greatly reduced.

Optionally, in some embodiments, the harness isolation board assembly includes a first output pole having a first connection portion protruding from the first end and a second output pole having a second connection portion protruding from the second end;

The first end plate assembly comprises a first output pole base, the second end plate assembly comprises a second output pole base, the first connecting part is arranged on the first output pole base, and the second connecting part is arranged on the second output pole base;

the first connecting part is a first fool-proof part, the first output electrode base is a second fool-proof part, and the second connecting part is a third fool-proof part; the second output electrode base is a fourth fool-proof part.

In the technical scheme of this embodiment, what adopted is that the cooperation of utilizing between the first output pole of first end plate subassembly and pencil division board subassembly, the slow-witted scheme of preventing that the cooperation of second end plate subassembly and pencil division board subassembly's second output pole was realized, directly do corresponding improvement to the current structure of pencil division board subassembly can, to some first output poles and second output poles compare other battery that the member is independent structure, can only do the improvement to first output pole and second output pole, correspond to increase first connecting portion and second connecting portion, less to the manufacturing process influence of current production line.

Optionally, in some embodiments, at least one of a mating dimension, a mating shape, a mating position between the first connection and the first output pole mount is different from a mating dimension, a mating shape, a mating position between the corresponding second connection and the second output pole mount.

In the technical scheme of the embodiment of the application, the plane of the wire harness isolation board assembly is taken as a reference, and the first connecting portion and the second connecting portion are arranged on the wire harness isolation board assembly in a non-central symmetrical mode, so that after the wire harness isolation board assembly rotates 180 degrees on the plane of the wire harness isolation board assembly, the first connecting portion cannot be matched with the second output pole base, and/or the second connecting portion cannot be matched with the first output pole base. For example, with a 180 ° turn, the first output is illustrative and includes, but is not limited to, the following may be present: the first output electrode and the second output electrode are staggered in base position, namely, the matching positions of the first connecting part and the second connecting part in the third direction are different, and the third direction, the first direction and the second direction are mutually perpendicular; or at least one of the shapes and the sizes of the structures of the first output electrode and the second output electrode base is not corresponding, and the first output electrode and the second output electrode cannot be matched in an alignment way; or in the second direction, namely in the thickness direction of the wire harness isolation plate assembly, the matching surfaces of the first output electrode and the second output electrode, which are respectively opposite to each other, are not coplanar, and meanwhile, the matching surfaces of the first output electrode base, which are respectively used for being in contact with the first output electrode, and the matching surfaces of the second output electrode base, which are respectively used for being in contact with the second output electrode, are not coplanar, namely the matching positions of the first connecting part and the second connecting part in the second direction are different. Under the condition that any one of the conditions is met, when the wire harness isolation board assembly is reversely assembled, one of the first end and the second end is inevitably interfered, so that two ends cannot be simultaneously positioned, the probability of reversely assembling the wire harness isolation board assembly is effectively reduced by a foolproof interference means, and the probability of scrapping a battery due to reversely assembling the wire harness isolation board assembly is effectively and greatly reduced.

Optionally, in some embodiments, the number of battery cells is an odd number, the odd number of battery cells being stacked and connected in series along the first direction.

In the technical scheme of this embodiment, odd electric core is along first direction series connection, the first output utmost point and the second output utmost point of pencil division board subassembly are located respectively and are located first end and second end, and according to conventional overall arrangement scheme, the setting of two output on the pencil division board subassembly is central symmetrical structure, first output utmost point base and second output utmost point base also the same, namely the pencil division board subassembly rotates 180 back, the position of first output utmost point and second output utmost point probably coincides, make when not preventing slow-witted structure, very easy on the production line with the contrary dress of pencil division board subassembly, make first output utmost point and second output utmost point just opposite with the electrode correspondence of two output terminal at battery monomer group both ends, cause the rejection of battery. The fool-proof scheme is applied to the production of the batteries with odd number of series-connected battery cells, and can greatly improve the yield and greatly reduce the rejection rate on the basis of the prior art.

In a second aspect, an electrical device is provided, including a battery in the above embodiment, where the battery is configured to provide electrical energy.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a vehicle according to some embodiments of the present application.

Fig. 2 is a schematic structural view of a battery provided in some embodiments of the present application (the structure of the harness isolation board assembly is not fully shown in the drawings).

Fig. 3 is a schematic top view of the battery of fig. 2 after hiding the FPC.

Fig. 4 is a schematic diagram illustrating the cooperation of the harness isolation board of the battery of fig. 2 with the first mount and the second mount.

Fig. 5 is another view angle matching schematic diagram of the harness isolation board in fig. 4 and the first mounting base and the second mounting base.

Fig. 6 is a schematic top view of the harness isolation board and the first and second mounting seats of fig. 4.

Fig. 7 is a schematic structural view of a battery (the structure of a harness isolation board assembly is not fully shown in the drawings) provided in further embodiments of the present application.

Fig. 8 is a schematic top view of the battery of fig. 7.

Icon: 1000-vehicle; 100-cell; 200-motor; 300-a controller;

110-battery cell stack; 111-battery cells; 120-a first end plate assembly; 121-a first end plate; 122-a first mount; 1221-a bottom plate; 1222-side panels; 1223-a support table; 123-a first output pole mount; 130-a harness isolation board assembly; 131-a first end; 132-a second end; 133-a harness isolation board; 1331-a first surface; 134-a first output pole; 1341-first connection; 135-a second output pole; 1351-second connection, 136-bus member, 137-FPC, 140-second end plate assembly; 141-a second end plate; 142-a second mount; 143-a second output pole mount; 150-a first fool-proofing part; 160-a second fool-proofing part; 161-receiving slots; 170-a third fool-proofing part; 180-fourth fool-proofing part.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the 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. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

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 terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above 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. Those of skill in the art will explicitly and implicitly understand that the embodiments described herein may be combined with 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; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, which means that three relationships may exist, for example, a and/or B may mean: there are three cases, a, B, a and B simultaneously. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

The term "plurality" as used herein refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural sheets" refers to two or more (including two).

In this application, reference to battery 100 is to a single physical module that includes one or more battery cells, including two and more battery cells, to provide higher voltages and capacities. For example, the battery 100 mentioned in the present application may include a battery module or a battery pack, or the like.

Currently, the more widely the application of the power battery 100 is in view of the development of market situation. The power battery 100 is widely used not only in energy storage power systems such as hydraulic power, thermal power, wind power and solar power stations, but also in electric vehicles such as electric bicycles, electric motorcycles, electric vehicles, and in various fields such as military equipment and aerospace. With the increasing field of application of the power battery 100, the market demand thereof is increasing.

For the battery 100 in which the matching relationship between the end plate assembly and the wire harness isolation plate assembly 130 cannot be automatically foolproof due to space limitation, structural layout and other factors, the wire harness isolation plate assembly 130 can still be assembled with the battery unit group 110 and the end plate assembly in a matching manner after rotating 180 degrees around the plane, so that the risk of reversely assembling the wire harness isolation plate 133 exists, and the reverse assembling of the wire harness isolation plate assembly 130 can cause the positive and negative directions of the wire harness isolation plate 133 to be opposite to the positive and negative directions of the output of the battery unit group 110, thereby causing the battery 100 to be scrapped, improving the rejection rate of the production line and being unfavorable for the production of the battery 100.

Based on the above considerations, in order to reduce the rejection rate in the production process of the battery 100 and to improve the yield, a battery 100 including a battery cell group 110, a first terminal plate assembly 120, and a harness isolation plate assembly 130 is designed. Wherein the battery cell group 110 includes a plurality of battery cells 111; the first terminal plate assembly 120 is disposed at one end of the battery cell group 110 in the first direction; the harness isolation plate assembly 130 is disposed at one end of the battery cell group 110 in a second direction, which is perpendicular to the first direction. In the first direction, the harness isolation board assembly 130 has opposite first and second ends 131 and 132, the first end 131 being provided with a first fool-proof portion 150, the first end board assembly 120 being provided with a second fool-proof portion 160 adapted to the first fool-proof portion 150. By providing the first fool-proof portion 150 on the wire harness isolation board assembly 130 and correspondingly providing the second fool-proof portion 160 on the first end board assembly 120, which is matched with the first fool-proof portion 150, in the assembling process, the first end board assembly 120 and the wire harness isolation board assembly 130 are assembled to define a unique assembling scheme through the mutual cooperation of the first fool-proof portion 150 and the second fool-proof portion 160. That is, when the battery cell assembly 110, the first end plate assembly 120 and the harness isolation plate assembly 130 are assembled in the correct orientation (i.e., the first fool-proofing portion 150 and the second fool-proofing portion 160 are aligned and matched), if the harness isolation plate assembly 130 is rotated 180 ° along the plane, the first fool-proofing portion 150 and the second fool-proofing portion 160 are dislocated and located at opposite ends of the battery cell assembly 110 in the first direction.

Compared to the battery 100 in the related art, the battery 100 may have a certain fool-proofing effect, and fool-proofing may be achieved by performing specialized processing and design on the structure, shape, etc. of the first fool-proofing portion 150 and the second fool-proofing portion 160, by intentionally performing judgment and adjusting the harness isolation board assembly 130 by an operator, adjusting the first end 131 and the first fool-proofing portion 150 to an orientation close to the first end board assembly 120, and the difficulty of judgment is low; the fool-proofing implementation can also be realized by interfering the first fool-proofing portion 150 with the battery unit group 110 or other components of the battery 100 when the assembly is incorrectly aligned, and/or interfering the second fool-proofing portion 160 with the second end 132 of the wire harness isolation board assembly 130, that is, the wire harness isolation board assembly 130 cannot be smoothly installed in place and cannot be simultaneously conducted with all the electrode terminals of the battery unit group 110 to form a closed circuit, so that the wire harness isolation board assembly 130 can be installed in place only when the first fool-proofing portion 150 and the second fool-proofing portion 160 are aligned, and meanwhile, the electrical connection relationship between the wire harness isolation board assembly 130 and the battery unit group 110 is correct, so that the probability of reversely installing the wire harness isolation board assembly 130 is effectively reduced through the first fool-proofing portion 150 and the second fool-proofing portion 160, and the probability of scrapping the battery 100 caused by reversely installing the wire harness isolation board assembly 130 is effectively and greatly reduced.

The battery cell 111 disclosed in the embodiment of the present application may be, but is not limited to, used in an electric device such as a vehicle 1000, a ship, or an aircraft. The power supply system with the battery cells 111, the battery 100 and the like disclosed by the application can be used for forming the power utilization device, so that the safety of the battery cells 111 is improved, and the popularization of the battery 100 is facilitated.

The embodiment of the application provides an electricity consumption device using a battery 100 as a power source, which may 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 according to an embodiment of the present application as an example of the vehicle 1000.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle 1000 according to some embodiments of the present application. The vehicle 1000 may be a fuel oil vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or a range-extended vehicle. The battery 100 is provided in the interior of the vehicle 1000, and the battery 100 may be provided at the bottom or the head or the tail of the vehicle 1000. The battery 100 may be used for power supply of the vehicle 1000, for example, the battery 100 may be used as an operating power source of the vehicle 1000. The vehicle 1000 may also include a controller 300 and a motor 200, the controller 300 being configured to control the battery 100 to power the motor 200, for example, for operating power requirements during start-up, navigation, and travel of the vehicle 1000.

In some embodiments of the present application, battery 100 may not only serve as an operating power source for vehicle 1000, but may also serve as a driving power source for vehicle 1000, instead of or in part instead of fuel oil or natural gas, to provide driving power for vehicle 1000.

Referring to fig. 2-8, fig. 2-8 are schematic diagrams of a battery 100 according to some embodiments of the present application. The battery 100 includes a battery cell stack 110, a harness isolation plate assembly 130, a first end plate assembly 120, and a second end plate assembly 140.

The harness isolation board assembly 130, also known as CCS assembly, is used to electrically connect the plurality of battery cells 111, to electrically locate the battery cell stack 110, to collect signals, etc. The first end plate assembly 120 and the second end plate assembly 140 are used to define the general location of the battery cell stack 110 and to provide insulation protection for the battery cell stack 110. The first and second end plate assemblies 120, 140 are in connection engagement with the harness isolation plate assembly 130 to provide mounting locations and insulation protection for the output poles of the harness isolation plate assembly 130.

The harness isolation board assembly 130 may further include a bus member 136 for making electrical connection between the plurality of battery cells 111. The harness isolation board assembly 130 may further include a first output pole 134 and a second output pole 135, the first output pole 134 and the second output pole 135 being functional components of the harness isolation board assembly 130 electrically connected to an input or output of the battery cell stack 110 for conducting current throughout the battery cell stack 110. The harness isolation board assembly 130 may further include an FPC137.

The battery 100 may also include other structures, for example, the battery 100 may further include a connection fixture, and the connection fixture may be any feasible scheme of a binding belt, a pull rod, or the like.

In the battery 100, the battery cell group 110 may include a plurality of battery cells 111, where the plurality of battery cells 111 may be connected in series or parallel or in parallel, and the series-parallel refers to that the plurality of battery cells 111 are connected in both series and parallel. The plurality of battery cells 111 can be directly connected in series or in parallel or in series-parallel, and then the whole formed by the plurality of battery cells 111 is accommodated in the box 10; of course, the battery 100 may also be a battery module formed by connecting a plurality of battery cells 111 in series or parallel or series-parallel connection, and then connecting a plurality of battery modules in series or parallel or series-parallel connection.

Wherein each battery cell 111 may be a secondary battery or a primary battery; but not limited to, lithium sulfur batteries, sodium ion batteries, or magnesium ion batteries. The battery cell 111 may be in the shape of a cylinder, a flat body, a rectangular parallelepiped, or other shapes, etc.

The battery cell 111 may contain one or more cell assemblies inside that are components of the battery cell 111 where electrochemical reactions occur. The switching tab is a member that transmits current in the battery cell 111. The cell assembly is mainly formed by winding or stacking a positive electrode plate and a negative electrode plate, and a diaphragm is generally arranged between the positive electrode plate and the negative electrode plate. The parts of the positive pole piece and the negative pole piece, which are provided with active substances, form the main body part of the battery cell assembly, and the parts of the positive pole piece and the negative pole piece, which are not provided with active substances, are respectively provided with a tab. The positive electrode tab and the negative electrode tab may be located at one end of the main body portion together or located at two ends of the main body portion respectively. During the charge and discharge of the battery 100, the positive and negative electrode active materials react with the electrolyte, and the tab is connected between the tab and the electrode terminal to form a current loop.

In some embodiments, the battery cell 111 may be provided thereon with functional components such as electrode terminals and the like. The electrode terminals may be used to electrically connect the cell assembly and the bus member 136 for outputting or inputting electric energy of the battery cell 111. In some embodiments, the battery cell 111 may also be provided with a pressure relief mechanism for relieving the internal pressure when the internal pressure or temperature of the battery cell 111 reaches a threshold.

According to some embodiments of the present application, as shown in fig. 2 to 8, the present application provides a battery 100, including a battery cell set 110, where the battery cell set 110 includes a plurality of battery cells 111, an electrochemical reaction can occur inside the battery cells 111, and the battery cell set 110 is used as an electric power source of the battery 100, and can charge and discharge and provide electric energy.

The battery 100 further includes a harness isolation plate assembly 130, the harness isolation plate assembly 130 having opposite first and second ends 131, 132 in a first direction, the harness isolation plate assembly 130 generally covering one side of the battery cell stack 110 in the first direction. The harness isolation board assembly 130 is disposed at one end of the battery cell assembly 110 in a second direction, which is perpendicular to the first direction, to unidirectionally position the battery cell assembly 110 in the second direction. The harness isolation board assembly 130 is a functional member that electrically connects the plurality of battery cells 111 as one body, and the plurality of battery cells 111 are connected in series or in parallel or in series-parallel through the harness isolation board assembly 130 for outputting electric energy of the battery cell group 110.

As shown in fig. 3, the first direction is the length direction of the battery 100, i.e., the length direction of the harness isolation board assembly 130 (i.e., the X direction in fig. 3), and the second direction is the height direction of the battery 100, i.e., the thickness direction of the harness isolation board assembly 130 (i.e., the Z direction in fig. 3).

The wire harness isolation board assembly 130 may be referred to as a CCS assembly or a sampling assembly in some cases, and its functions may mainly include insulating a side surface where the electrode output terminals of the battery cell assembly 110 are located, encapsulating the battery cell assembly 110 together with an end plate assembly or the like, electrically connecting the battery cells 111 of the battery cell assembly 110, sampling signals, and the like.

The battery 100 further includes a first end plate assembly 120, where the first end plate assembly 120 is disposed at one end of the battery cell group 110 in the first direction, so as to limit and position the battery cell group 110 in the first direction. Meanwhile, since the first direction is perpendicular to the second direction, the harness isolation board assembly 130 and the first end board assembly 120 are necessarily located at the outer sides of two adjacent sides of the battery cell group 110, and the first end board assembly 120 and the harness isolation board assembly 130 define the approximate arrangement space of the battery cell group 110 in the first direction and the second direction and limit the battery cell group 110 unidirectionally, respectively.

As shown in fig. 3, in order to achieve fool-proofing, the first end 131 is provided with a first fool-proofing portion 150 (in fig. 2, the first fool-proofing portion 150 is shielded by the FPC 137) in order to effectively reduce the risk of reverse mounting of the harness isolation board assembly 130 with respect to the positive and negative electrodes of the battery cell stack 110, and the first end board assembly 120 is provided with a second fool-proofing portion 160 adapted to the first fool-proofing portion 150. By providing the first fool-proof portion 150 on the wire harness isolation board assembly 130 and correspondingly providing the second fool-proof portion 160 on the first end board assembly 120, which is matched with the first fool-proof portion 150, in the assembling process, the first end board assembly 120 and the wire harness isolation board assembly 130 are assembled to define a unique assembling scheme through the mutual cooperation of the first fool-proof portion 150 and the second fool-proof portion 160. Specific: in the case that the assembly orientations of the battery cell assembly 110, the first end plate assembly 120 and the harness isolation plate assembly 130 are correct (i.e., the first fool-proofing portion 150 and the second fool-proofing portion 160 are aligned and matched), if the harness isolation plate assembly 130 is rotated 180 ° along the plane, the first fool-proofing portion 150 and the second fool-proofing portion 160 are dislocated and respectively located at two opposite ends of the battery cell assembly 110 in the first direction.

Based on this basic concept, in some possible embodiments, fool-proofing may be achieved by an operator intentionally making a judgment and adjusting the harness isolation board assembly 130, adjusting the first end 131 and the first fool-proofing portion 150 to an orientation proximate to the first end board assembly 120; in some possible embodiments, the fool-proofing implementation may be achieved by interfering the first fool-proofing portion 150 with the battery unit group 110 or other components of the battery 100 when the assembly is incorrectly aligned, and/or interfering the second fool-proofing portion 160 with the second end 132 of the harness isolation board assembly 130, that is, the harness isolation board assembly 130 cannot be smoothly installed in place and cannot be simultaneously conducted with all the electrode terminals of the battery unit group 110 to form a closed circuit, so that the harness isolation board assembly 130 can be installed in place only when the first fool-proofing portion 150 and the second fool-proofing portion 160 are aligned, and meanwhile, the electrical connection relationship between the harness isolation board assembly 130 and the battery unit group 110 is correct, so that the probability of reversely installing the harness isolation board assembly 130 is effectively reduced through the first fool-proofing portion 150 and the second fool-proofing portion 160, and the probability of scrapping the battery 100 due to reversely installing the harness isolation board assembly 130 is effectively and greatly reduced.

According to some embodiments of the present application, the first fool-proof portion 150 is a protruding portion protruding from the first end 131 along the first direction (i.e., the X direction in fig. 3), and the second fool-proof portion 160 is a receiving groove 161, and an opening of the receiving groove 161 faces the harness isolation board assembly 130. The receiving groove 161 penetrates the first endplate assembly 120 in a first direction. First, the

The protruding portion may be provided at the outer surface of the first end 131 facing away from the battery cell stack 110 in the second direction, or may be provided at the outer surface of the first end 131 near the first end plate assembly 120 in the first direction, as long as the protruding portion is closer to the first end plate assembly 120 than the first end 131 is in the first direction.

The accommodating groove is mainly used for avoiding the protruding part and reserving an assembly space for the protruding part.

In the conventional battery 100 structure, the general structure of the harness isolation board assembly 130, except for a portion of the functional components, is generally disposed on the side of the first end board assembly 120 adjacent to the battery cell stack 110 in the first direction. By providing the first fool-proof portion 150 as a protruding portion protruding from the first end 131 in the first direction, a clearance portion is provided at an end of the first end plate assembly 120 near the harness isolation plate assembly 130. At least part of projection of the protruding part on the second direction falls on the holding groove, and the holding groove dodges the protruding part on the one hand, and on the other hand provides the accommodation space for the protruding part and spacing to the protruding part, has simplified the self structure of first foolproof part 150 and second foolproof part 160, has reduced the manufacturing degree of difficulty of first terminal board subassembly 120 and pencil division board subassembly 130, is favorable to improving production efficiency and assembly efficiency.

Compared with the matching mode of the hole and the protruding part, the size of the accommodating groove 161 is generally larger, so that the matching action area of the first fool-proof part 150 and the second fool-proof part 160 can be properly enlarged, and the matching strength and the limiting effect of the first fool-proof part 150 and the second fool-proof part 160 are ensured. On the other hand, the opening of the receiving groove 161 is directed toward the harness isolation plate assembly 130 such that the assembly direction of the harness isolation plate assembly 130 and the first end plate assembly 120 is in the second direction, the harness isolation plate assembly 130 may be directly inserted from one end of the second direction, i.e., the assembly direction of the harness isolation plate assembly 130 and the first end plate assembly 120 is substantially in the second direction, and the harness isolation plate assembly 130 is integrally disposed outside one end of the battery cell stack 110 and the first end plate assembly 120 in the second direction. Because when assembling in the second direction, the position of the wire harness isolation board assembly 130 changes from being far away from the battery unit 110 to being close to the battery unit 110, and the second foolproof part 160 of the first end board assembly 120 is matched with the second foolproof part 160 in a counterpoint mode, interference between the wire harness isolation board assembly 130 and the battery unit 110 is less in the whole assembling process, the structures of the wire harness isolation board assembly 130 and the battery unit 110 can be effectively protected, collision between the wire harness isolation board assembly 130 and the battery unit 110 can be effectively reduced, and after the battery unit 110, the first end board assembly 120 and other structural members for fixing and positioning the battery unit 110 are assembled, the wire harness isolation board assembly 130 is installed, the assembling process and the assembling operability are both considered, the assembling difficulty can be reduced, and the assembling process is simplified.

As shown in fig. 3 to 6, the manufacturing process of forming a receiving groove 161 in the first end plate assembly 120 is simple and easy, and the corresponding arrangement of the first foolproof portion 150 on the wire harness isolation plate assembly 130 may also be various, in which, when the receiving groove 161 penetrates the first end plate assembly 120 along the first direction, the first foolproof portion 150 (i.e., the protruding portion) may directly extend along the first direction, directly extend into the receiving groove 161 and cooperate with the receiving groove 161, and after the receiving groove 161 is mated in place, the first foolproof portion 150 is exposed on the first end plate assembly 120, compared with other solutions, the protruding portion may not be a bending structure, its structural strength is higher, and the molding difficulty is lower.

It should be noted that, in other embodiments, the first fool-proof portion 150 may also be a plug hole opened toward the first end plate assembly 120, the second fool-proof portion 160 is a protruding portion provided on the first end plate assembly 120, and the protruding portion has a projection component parallel to the first direction, and the assembly direction of the harness isolation board assembly 130 and the first end plate assembly 120 is substantially along the first direction.

Optionally, according to some embodiments of the present application, the harness isolation board assembly 130 includes a harness isolation board 133, and the first fool-proof portion 150 is provided on the harness isolation board 133.

The harness isolation plate 133, which is an important structure of the harness isolation plate assembly 130, is a base body on which other important components such as the bus bar member 136, the circuit board, and the like are arranged, and is also a component directly contacting the battery cell group 110.

Foolproof realized by utilizing the cooperation of the first end plate assembly 120 and the wire harness isolation plate 133 of the wire harness isolation plate assembly 130, the first foolproof part 150 is arranged on the isolation plate, the distance between the first foolproof part 150 and the surface of the wire harness isolation plate assembly 130 facing the battery cell group 110 can be controlled in a proper range to a certain extent, and the dimension of the first end plate assembly 120 in the second direction can be controlled in a proper range to a certain extent, thereby being beneficial to controlling the volume and improving the energy density of the battery 100.

According to some embodiments of the present application, the harness isolation plate 133 and the first fool-proof portion 150 are optionally integrally molded.

With pencil division board 133 and first portion 150 integrated into one piece that prevents slow-witted, integrated into one piece's manufacturing degree of difficulty is low, structural strength is high, and the thickness of pencil division board 133 is also generally thinner, integrated into one piece can save the step of trompil on the pencil division board 133, is favorable to guaranteeing the whole structural strength of pencil division board 133 and first portion 150 that prevents slow-witted, also can effectively avoid the problem that the intensity that the trompil leads to on the pencil division board 133 reduces.

Optionally, according to some embodiments of the present application, the first end plate assembly 120 includes a first end plate 121 and a first mount 122, and the first mount 122 is disposed at an end of the first end plate 121 adjacent to the harness isolation plate assembly 130 along the second direction. In the second direction, the harness isolation plate 133 includes a first surface 1331 facing away from the battery cell stack 110; the second fool-proof portion 160 is disposed on the first mounting seat 122, and at least a portion of the first mounting seat 122 protrudes from the first surface 1331.

The first end plate 121 is a main component of the first end plate assembly 120 for covering one of the end surfaces of the battery cell stack 110 in the first direction, and mainly serves to insulate and limit the battery cell stack 110.

The first mounting seat 122 is closer to the harness isolation board assembly 130 than the first end plate 121 in the second direction, and the second fool-proof portion 160 is disposed on the first mounting seat 122 for providing a mounting position for the first fool-proof portion 150.

In the technical solution of this embodiment, the end face of the battery monomer group 110 corresponding to the first end 131 in the first direction is a first end face, and after the first end plate 121 and the first mounting seat 122 are connected and assembled in place, the first end plate 121 and the first mounting seat are jointly contacted with the first end face, so as to realize the limit and insulation of the first end face. And because at least part of the first mounting seat 122 protrudes out of the first surface 1331, the first end plate assembly 120 can limit the end surface of the wire harness isolation plate 133 corresponding to the first end 131, and the first end plate assembly 120, the battery cell group 110 and the wire harness isolation plate assembly 130 can be matched in an interaction manner.

As shown in fig. 4 to 5, as a possible embodiment, the first mount 122 may include a bottom plate 1221, a side plate 1222, and two support tables 1223 spaced apart from the bottom plate 1221 along a third direction, the first direction, the second direction, and the third direction being perpendicular to each other. The side plate 1222 is connected to one end of the bottom plate 1221 near the battery cell group 110 in the first direction, the side plate 1222 is provided with a groove penetrating the side plate 1222 in the first direction and communicating with a space between the two support tables 1223, the space between the groove and the two support tables 1223 is the second foolproof part 160, that is, the groove and the space between the two support tables 1223 together form the accommodating groove 161.

As shown in fig. 3, the third direction is the width direction of the battery 100, and is also the width direction of the harness isolation plate assembly 130 (i.e., the Y direction in fig. 3).

Along the second direction, the bottom plate 1221 is disposed on an end surface of the first end plate 121, the first mounting seat 122 is disposed on the first end plate 121 through the bottom plate 1221, the bottom plate 1221 is used as a main base body, and the side plate 1222 and the two support tables 1223 are disposed at one end of the bottom plate 1221 facing away from the first end plate 121.

Along the first direction, the side plate 1222 is close to the end surface of the battery cell group 110, and the side plate 1222 and the first end plate 121 together realize limiting and insulation of the first end surface of the battery cell group 110.

As a possible embodiment, the side plates 1222 may connect two support tables 1223; the two support tables 1223 are each provided with a step at the proximal end in the third direction to form a recessed step space between the two support tables 1223, the first fool-proof portion 150 is provided in the step space, and a step surface of the step is used for supporting the first fool-proof portion 150. In addition, the first fool-proof portion 150 can be positioned by the two support tables 1223 in the third direction, so that the assembly position of the first end plate assembly 120 and the harness isolation plate assembly 130 can be limited, and the fool-proof function can be achieved at the same time.

That is, in the third direction, the ends of the two support tables 1223 that are adjacent to each other are each in a corner-missing structure to form the above-described step surface, and the step space is made to have a first section that faces away from the bottom plate 1221 (i.e., faces away from the first end plate 121) and a second section that is adjacent to the above-described bottom plate 1221 in the second direction, the first section having a larger dimension in the third direction than the second section, the first section and the second section constituting a step-groove-like structure.

As a possible embodiment, along the third direction, the extension portion includes a first flange and two second flanges connected to two ends of the first flange, the second flanges overlap the step surface of the step, and at least a portion of the first flange extends into a space between the bottom plate 1221 and the step surface of the step, so that the dual alignment is prevented from being foolproof.

Optionally, according to some embodiments of the present application, the harness isolation board assembly 130 includes a first output pole 134, the first end board assembly 120 further includes a first output pole mount 123, the first output pole mount 123 being provided to the first end board 121; the first output electrode base 123 and the first mount 122 are integrally formed.

The first output electrode 134 is mounted on a side of the isolation board away from the battery cell group 110, and is used as a functional component of the harness isolation board assembly 130 (i.e., CCS assembly, i.e., sampling assembly) electrically connected to an input end or an output end of the battery cell group 110, for conducting the current of the entire battery cell group 110, i.e., the battery cell group 110 outputs the current outwards via the first output electrode 134.

The first output pole base 123 is configured to connect to the first output pole 134 and provide insulation protection for the first output pole 134, so as to implement fixation and insulation protection of the first output pole 134. In the related art, the output electrode mount of the battery 100 is mostly mounted on the module end plate. In this embodiment, the first output electrode base 123 is disposed on the first end plate 121, which accords with the common output electrode base arrangement scheme in the related art.

The first output electrode 134 also protrudes from the first end 131 along the first direction, that is, the first output electrode 134 protrudes from the harness isolation board, and a projection of a portion of the first output electrode 134 protruding from the first end 131 in the second direction falls on the first output electrode base 123. By integrally molding the first output electrode base 123 and the first mounting base 122 and integrally mounting both to the first end plate 121, the assembly structure and the assembly process are simplified.

In the third direction, the first fool-proof portion 150 is disposed at an interval from the first output pole base 123, that is, the support stand 1223 is disposed at an interval from the first output pole base 123 in the third direction, so that the arrangement of the fool-proof and first output pole 134 does not interfere with each other.

Optionally, according to some embodiments of the present application, the battery 100 further includes a second end plate assembly 140, and the first end plate assembly 120 and the second end plate assembly 140 are disposed at two ends of the battery cell group 110 along the first direction; in the second direction, the harness isolation plate 133 includes a first surface 1331 facing away from the battery cell stack 110, and at least a portion of the second end plate assembly 140 protrudes from the first surface 1331.

The second end plate assembly 140 is configured to cooperate with the first end plate assembly 120 to define an arrangement space of the battery cell group 110 in the first direction, and to cooperate with the harness isolation plate assembly 130 to fix the harness isolation plate assembly 130 to substantially define an encapsulation space of the battery cell group 110.

In the technical solution of the embodiment of the present application, after the assembly is in place, the second end plate assembly 140 contacts with the second end surface of the battery monomer unit 110 corresponding to the second end 132 in the first direction, so as to realize the limiting and insulation of the second end surface. And since at least part of the second end plate assembly 140 protrudes from the first surface 1331, the second end plate assembly 140 can limit the end surface of the wire harness isolation plate 133 corresponding to the first end 131.

It should be noted that, in the scheme in which the first end plate assembly 120 and the second end plate assembly 140 cooperate, since the relative positional relationship between the mating surface between the first fool-proofing portion 150 and the second fool-proofing portion 160 and the end surface of the second end plate assembly 140 facing the wire harness insulation board assembly 130 is not limited to the second direction, the fool-proofing manner is still mainly two kinds of: in some embodiments, if the harness isolation board assembly 130 is reversely assembled, only the first fool-proof portion 150 and the second fool-proof portion 160 are located at two opposite ends in the first direction, but the harness isolation board assembly 130 can still be normally matched with the battery cell group 110, the first end board assembly 120 and the second end board assembly 140 in place, it is necessary to manually determine and adjust the orientation of the harness isolation board assembly 130 during assembly, so that the first fool-proof portion 150 and the second fool-proof portion 160 are located at the same end of the battery cell group 110; in other embodiments, interference fool-proofing may be employed to prevent the harness isolation board assembly 130 from being reversely assembled, such that the harness isolation board assembly 130 cannot be normally matched with the battery cell assembly 110, the first end board assembly 120 and the second end board assembly 140 at the same time, so as to alert an operator that the harness isolation board assembly 130 is in a reversely assembled state, and further reduce the probability of reversely assembling the harness isolation board assembly 130 and the rejection rate of the battery 100.

The wire harness isolation board assembly 130 has opposite third and fourth end faces in the second direction, and the wire harness isolation board assembly 130 is provided outside the fourth end face in the second direction. For example, in some embodiments, the interference fool-proofing may employ the following scheme to configure the battery 100 to: in the assembled state, in the second direction, the surface of the first fool-proof portion 150 (i.e., the protruding portion) facing the second fool-proof portion 160 (i.e., facing the groove) is closer to the third end surface than the surface of the second end plate assembly 140, which is closer to the fourth end surface, in the first direction, the projection of the first fool-proof portion 150 falls inside the second end plate assembly 140, the second end plate assembly 140 does not have a void portion avoiding the first fool-proof portion 150, and if the harness isolation plate assembly 130 is reversely assembled, the first fool-proof portion 150 interferes with the surface of the second end plate assembly 140, which is closer to the fourth end surface, so that the first fool-proof portion 150 and the second fool-proof portion 160 in the second direction cannot be integrally matched with and electrically conducted with the battery cell assembly 110.

Optionally, according to some embodiments of the present application, the battery 100 further includes a second end plate assembly 140, and the first end plate assembly 120 and the second end plate assembly 140 are disposed at two ends of the battery cell group 110 along the first direction; the second end 132 is provided with a third fool-proof portion 170, and the second end plate assembly 140 is provided with a fourth fool-proof portion 180 adapted to the third fool-proof portion 170.

The second end plate assembly 140 is configured to cooperate with the first end plate assembly 120 to define an arrangement space of the battery cell group 110 in the first direction, so as to respectively limit and insulate the first end surface and the second end surface of the battery cell group 110 in the first direction. And is in interaction with the harness isolation plate assembly 130 to fix the harness isolation plate assembly 130 so as to substantially define the packaging space of the battery cell group 110.

The third fool-proofing portion 170 and the fourth fool-proofing portion 180 are adapted, at least part of the projection of the third fool-proofing portion 170 in the second direction (i.e., the Z direction) falls on the fourth fool-proofing portion 180, and the same principle as the cooperation of the first fool-proofing portion 150 and the second fool-proofing portion 160 is achieved by arranging the first fool-proofing portion 150 and the third fool-proofing portion 170 on the wire harness isolation plate assembly 130 and correspondingly arranging the second fool-proofing portion 160 and the fourth fool-proofing portion 180 on the first end plate assembly 120 and the second end plate assembly 140, and the assembly of the first end plate assembly 120 and the wire harness isolation plate assembly 130 is limited to a unique assembly scheme by the cooperation of the first fool-proofing portion 150 and the second fool-proofing portion 160 and the cooperation of the third fool-proofing portion 170 and the third fool-proofing portion 170.

By designing the structure, the battery 100 can be configured such that only when the first fool-proof portion 150 is aligned with the second fool-proof portion 160 and the third fool-proof portion 170 and the fourth fool-proof portion 180 are aligned, the harness isolation board assembly 130 can be installed in place or connected and fixed in place, and meanwhile, the electrical connection relationship between the harness isolation board assembly 130 and the battery unit assembly 110 is correct, that is, when the assembly orientations of the battery unit assembly 110, the first end board assembly 120 and the harness isolation board assembly 130 are correct (that is, the first fool-proof portion 150 and the second fool-proof portion 160 are aligned and matched), if the harness isolation board assembly 130 is rotated 180 ° along the plane, the first fool-proof portion 150 and the fourth fool-proof portion 180 cannot be aligned, the second fool-proof portion 160 and the third fool-proof portion 170 cannot be aligned, and the subsequent assembly process cannot be performed, so that the probability of reversely assembling the harness isolation board assembly 130 is effectively reduced, and the rejection probability of the battery 100 is effectively reduced due to reversely assembling the harness isolation board assembly 130.

According to some embodiments of the present application, optionally, as shown in fig. 7-8, the harness isolation board assembly 130 includes a first output pole 134 and a second output pole 135, the first output pole 134 having a first connection 1341 protruding from the first end 131, the second output pole 135 having a second connection 1351 protruding from the second end 132.

The first output electrode 134 and the second output electrode 135 are mounted on a side of the separator opposite to the battery cell group 110, and serve as functional components of the harness separator assembly 130 (i.e., CCS assembly, i.e., sampling assembly) electrically connected to the input or output end of the battery cell group 110, for conducting the current of the entire battery cell group 110, i.e., the battery cell group 110 outputs the current outwards via the first output electrode 134 and the second output electrode 135.

The first end plate assembly 120 includes a first output pole base 123, the second end plate assembly 140 includes a second output pole base 143, the first connection 1341 is mounted on the first output pole base 123, and the second connection 1351 is mounted on the second output pole base 143.

The first output pole mount 123 is used to connect the first connection portion 1341 of the first output pole 134 exposed outside the harness isolation board assembly 130 and provide insulation protection for the first connection portion 1341, and likewise, the second output pole mount 143 is used to connect the second connection portion 1351 of the second output pole 135 exposed outside the harness isolation board assembly 130 and provide insulation protection for the second connection portion 1351, so that fixing and insulation protection of the first output pole 134 and the second output pole 135 corresponding to the first end board assembly 120 and the second end board assembly 140 can be achieved. In the related art, the output electrode mount of the battery 100 is mostly mounted on the module end plate. In this embodiment, the first output electrode base 123 is disposed on the first end plate 121, and the second output electrode 135 is disposed on the second end plate 141, which accords with the common output electrode base arrangement scheme in the related art.

Wherein: the first connection portion 1341 is a first fool-proof portion 150, the first output pole base 123 is a second fool-proof portion 160, and the second connection portion 1351 is a third fool-proof portion 170; the second output pole mount 143 is a fourth fool-proof portion 180.

Unlike the fool-proof scheme implemented by the cooperation of the isolation board and the first end board assembly 120, in the technical scheme of the embodiment of the application, the fool-proof scheme implemented by the cooperation between the first output pole base 123 of the first end board assembly 120 and the first output pole 134 of the wire harness isolation board assembly 130 and the cooperation between the second output pole base 143 of the second end board assembly 140 and the second output pole 135 of the wire harness isolation board assembly 130 is adopted, the existing structure of the first output pole 134 and/or the second output pole 135 is directly improved, the first output pole base 123 and the second output pole base 143 correspondingly matched with the first connection portion 1341 and the second connection portion 1351 are correspondingly designed, and compared with the battery 100 with other bus members 136, the structure, the shape, the size and the like of the first output pole 134 and the second output pole 135 can be improved, the structure, the shape, the size and the like of the first connection portion 1341 and/or the second connection portion 1351 are correspondingly changed, and the manufacturing process of the existing production line is less influenced.

The first connection portion 1341 forms the protruding portion, and the first output pole base 123 also forms the space-avoiding portion, that is, the first output pole base 123 is provided with a mounting groove for accommodating the first connection portion 1341.

Optionally, according to some embodiments of the present application, at least one of the mating dimension, mating shape, mating position between the first connection 1341 and the first output pole mount 123 is different from the mating dimension, mating shape, mating position between the corresponding second connection 1351 and the second output pole mount 143.

Taking the first connection portion 1341 and the first output pole 134 as an example, the mating dimensions of the first connection portion 1341 and the first output pole base 123 include a first direction dimension, a second direction dimension, and a third direction dimension, when the mating dimensions of the first connection portion 1341 and the first output pole base 123 are different from the mating dimensions of the second connection portion 1351 and the second output pole base 143, it may mean that at least one of the first direction dimension, the second direction dimension, and the third direction dimension is different, at this time, the shapes of the first connection portion 1341 and the second connection portion 1351 may be the same or different, and at this time, in the third direction, the distance between the edges of the first connection portion 1341 and the first end 131 may also be different from the distance between the edges of the second connection portion 1351 and the second end 132, and after the spacer assembly 130 is rotated 180 ° along the plane, the first connection portion 1341 and the second output pole base 143 may be in the third direction, thereby achieving fool-proof.

The mating shape between the first connection portion 1341 and the first output pole mount 123 depends on the arrangement shape of the first connection portion 1341, that is, when the mating shape of the first connection portion 1341 and the first output pole mount 123 is different from the mating shape of the second connection portion 1351 and the second output pole mount 143, the shape of the first connection portion 1341 is different from the shape of the second connection portion 1351.

The fitting position between the first connection portion 1341 and the first output pole base 123 refers to the contact surface position where the first connection portion 1341 and the first output pole base 123 are in contact in a properly assembled state.

The mating position between the first connection portion 1341 and the first output pole base 123 is different from the mating position between the second connection portion 1351 and the second output pole base 143, which can be understood as: in the second direction, the surface of the first connection part 1341 facing the third end surface of the battery cell stack 110 is not coplanar with the surface of the second connection part 1351 facing the third end surface of the battery cell stack 110, that is, in other words, the surface of the first output electrode mount 123 for contacting the first output electrode 134 is not coplanar with the surface of the second output electrode mount 143 for contacting the second output electrode 135.

In the technical solution of this embodiment, the first connection portion 1341 and the second connection portion 1351 are arranged on the wire harness isolation board assembly 130 in a non-central symmetrical manner based on the plane of the wire harness isolation board assembly 130, so that after the wire harness isolation board assembly 130 rotates 180 ° on the plane, the first connection portion 1341 cannot be matched with the second output pole base 143, and/or the second connection portion 1351 cannot be matched with the first output pole base 123, because before the battery 100 is welded, the first output pole 134 needs to be connected and fixed with the first output pole base 123, and the second output pole 135 needs to be connected and fixed with the second output pole base 143, and when the wire harness isolation board assembly 130 is in a reverse-line state, the correct connection and the assembly relationship of the finished battery 100 cannot be guaranteed effectively, so that fool-proof is realized.

As shown in fig. 7, the arrangement rule of the bus member 136 and the first and second output poles 134 and 135 is such that, in the third direction, the first body of the first output pole 134 excluding the first connection portion 1341 and the second body of the second output pole 135 excluding the second connection portion 1351 are mounted on the harness isolation plate 133 in a center-symmetrical layout, but the pitch from the center of the first connection portion 1341 (i.e., the first fool-proof portion 150) to the center of the second body is a, the pitch from the center of the second connection portion 1351 (i.e., the third fool-proof portion 170) to the center of the first body is b, a and b are not equal, and the pitch from the first connection portion 1341 to the edge of the battery 100 is c, and the pitch from the second connection portion 1351 to the edge of the battery 100 is d, c and d are also not equal.

In addition, in addition to the foregoing several fool-proofing means, in some embodiments, since the first output pole 134 and the first output pole base 123 are generally connected by bolts, the first connection portion 1341 and the second connection portion 1351 may be set to be the same size and structure, and the center and the plane of the first connection portion 1341 of the wire harness isolation board assembly 130 may be rotated 180 ° and then overlap with the second connection portion 1351, that is, the first connection portion 1341 and the second connection portion 1351 are centrally and symmetrically arranged on the wire harness isolation board assembly 130, but by setting the first connection hole of the mounting bolt on the first connection portion 1341 and the second connection hole of the mounting bolt on the second connection portion 1351 to be non-centrally and symmetrically arranged on the wire harness isolation board assembly 130, the sizes of the first connection hole and the second connection hole may be different or the opening positions may be non-centrally and symmetrically arranged on the wire harness isolation board assembly 130, so that in the case that the wire harness isolation board assembly 130 is reversely assembled, the mounting bolts cannot be correctly connected and fixed.

It should be noted that the above-mentioned central symmetry refers to central symmetry in the assembly sense, and is merely an assembly relationship between the first output pole 134 and the second output pole 135 of the harness isolation board assembly 130 and the first end board assembly 120 and the second end board assembly 140, and the internal structure of the harness isolation board assembly 130 is complex, and is not a layout scheme in which the internal structure is completely central symmetry.

According to some embodiments of the present application, optionally, the number of battery cells 111 is an odd number, and the odd number of battery cells 111 are stacked and connected in series along the first direction.

The arrangement direction of the odd number of battery cells 111 and the arrangement direction of the first end plate assembly 120 and the second end plate assembly 140 are matched with the common layout scheme in the related art, so that the overall internal structure of the battery 100 is orderly and regular, and the internal structure layout design of the harness isolation plate assembly 130 is facilitated.

In the technical solution of the present embodiment, the odd number of electric cells are connected in series along the first direction, and the first output electrode 134 and the second output electrode 135 of the harness isolation board assembly 130 are necessarily located at the first end 131 and the second end 132, respectively, and are located at two opposite ends in the third direction. If the two output ends are arranged on the wire harness isolation board assembly 130 in a central symmetrical manner according to a conventional layout scheme, the structures of the first output pole base 123 and the second output pole base 143 are the same, that is, after the wire harness isolation board assembly 130 rotates 180 degrees, the positions of the first output pole 134 and the second output pole 135 may coincide, so that when no foolproof means is available, the wire harness isolation board assembly 130 is easily reversely assembled on the production line, and the electrode correspondence relationship between the first output pole 134 and the second output pole 135 and the two output terminals at two ends of the battery cell assembly 110 is just opposite, thereby causing rejection of the battery 100. The fool-proof scheme is applied to the production of the battery 100 with the odd number of series-connected battery cells, so that the yield can be greatly improved and the rejection rate can be greatly reduced on the basis of the prior art.

In the prior art, the first output electrode 134 and the second output electrode 135 can be disposed at two opposite ends of the wire harness isolation board assembly 130 in the third direction, and are configured in such a way that, when the wire harness isolation board assembly 130 is reversely assembled, the first output electrode 134 and the second output electrode 143 must interfere with each other when the wire harness isolation board assembly 130 is reversely assembled, so that the first end 131 and the second end 132 of the wire harness isolation board assembly 130 cannot be simultaneously in place, the probability of reversely assembling the wire harness isolation board assembly 130 is effectively reduced by interference foolproof means, and the probability of scrapping the battery 100 due to reversely assembling the wire harness isolation board assembly 130 is effectively and greatly reduced.

In a second aspect, an electrical device is provided, including the battery 100 in the above embodiment, where the battery 100 is configured to provide electrical energy.

According to some embodiments of the present application, referring to fig. 3-8, a battery 100 is provided that includes a battery cell stack 110, a first end plate assembly 120, a second end plate assembly 140, and a harness isolation plate assembly 130. The battery cell group 110 includes an odd number of battery cells 111, and the odd number of battery cells 111 are connected in series; the first and second end plate assemblies 120 and 140 are disposed at both ends of the battery cell stack 110 in the first direction; the harness isolation plate assembly 130 is disposed at one end of the battery cell group 110 in a second direction, which is perpendicular to the first direction. The second direction is the height direction of the battery 100, and the harness isolation plate assembly 130 is located above the battery cell stack 110.

In a first orientation, the harness isolation plate assembly 130 has opposite first and second ends 131, 132. The wire harness isolation board assembly 130 includes a wire harness isolation board 133, a first output pole 134 and a second output pole 135, the first output pole 134 is disposed at the first end 131, the second output pole 135 is disposed at the second end 132, and the first output pole 134 and the second output pole 135 are disposed at opposite ends in a third direction.

The first end plate assembly 120 includes a first end plate 121, a first mounting base 122, and a first output electrode base 123, where the first output electrode base 123 is integrally disposed on the first mounting base 122, that is, the first mounting base 122 and the first output electrode base 123 are integrally formed.

The second end plate assembly 140 includes a second end plate 141, a second mounting seat 142, and a second output electrode base 143, where the second output electrode base 143 is integrally disposed on the second mounting seat 142, that is, the second mounting seat 142 and the second output electrode base 143 are integrally formed.

As a first alternative fool-proofing scheme, the first fool-proofing portion 150 and the second fool-proofing portion 160 may be provided only at one end in the first direction of the battery 100. Specific: the first fool-proof portion 150 is a protruding portion protruding from the first end 131 of the harness isolation board 133 along the first direction, the second fool-proof portion 160 is a void portion arranged on the first mounting seat 122 and avoiding the protruding portion, when the harness isolation board 133 is correctly mounted, the bottom surface of the protruding portion is lower than the top surface of the second mounting seat 142 in the second direction, that is, the structures of the first mounting seat 122 and the second mounting seat 142 are not identical, the first mounting seat 122 leaves a void portion for embedding the protruding portion for the protruding portion, the second mounting seat 142 is to be attached to the end surface of the battery unit group 110 and the top surface of the second mounting seat is higher than the bottom surface of the protruding portion, and when the harness isolation board 133 is reversely mounted, the protruding portion interferes with the top surface of the second mounting seat 142.

This solution utilizes that the assembly relationship between the protruding portion on the harness isolation board 133 of the CCS assembly and the space avoiding portion of the first mounting seat 122 is foolproof, and when the CCS assembly is reversely assembled, the protruding portion will interfere with the second mounting seat 142, and the harness isolation board assembly 130 cannot be installed in place.

As a second alternative fool-proofing scheme, in the first direction, the first fool-proofing portion 150 and the second fool-proofing portion 160 may be further disposed at one end of the battery 100, and the third fool-proofing portion 170 and the fourth fool-proofing portion 180 are disposed at the other end of the battery 100, where the first fool-proofing portion 150 and the third fool-proofing portion 170 are disposed in a non-central symmetry manner, the battery 100 may be configured to be aligned with the second fool-proofing portion 160 only at the first fool-proofing portion 150, and when the third fool-proofing portion 170 and the fourth fool-proofing portion 180 are aligned and matched, the wire harness isolation assembly 130 may be mounted in place or connected and fixed in place, and meanwhile, the electrical connection relationship between the wire harness isolation assembly 130 and the battery cell stack 110 is correct, that is, in the case that the assembly orientations of the battery cell stack 110, the first end assembly 120 and the wire harness isolation assembly 130 are correct (i.e., the first fool-proofing portion 150 and the second fool-proofing portion 160 are aligned and matched), if the isolation assembly 130 rotates 180 along the plane, the probability that the first fool-proofing portion 150 and the fourth fool-proofing portion 180 are aligned and the wire harness assembly cannot be mounted with the second fool-proofing portion 130 is reduced, and the wire harness assembly is not able to be mounted with the second fool-proofing portion 130 effectively, and the wire harness assembly is further down.

Alternatively, the CCS assembly may be directly utilized in an electrical connection assembly relationship with the first end plate assembly 120 and the second end plate assembly 140, the first output electrode 134 has a first connection portion 1341 protruding from the first end 131, the second output electrode 135 has a second connection portion 1351 protruding from the second end 132, the first connection portion 1341 is mounted on the first output electrode base 123, the second connection portion 1351 is mounted on the second output electrode base 143, and the first connection portion 1341 is not aligned with the second output electrode base 143, or the second connection portion 1351 is not aligned with the first output electrode base 123, or the first connection portion 1341 is not aligned with the second output electrode base 143 and the second connection portion 1351 is not aligned with the first output electrode base 123 when the CCS assembly is reversely mounted.

For example, alternatively, the first connection portion 1341 and the second connection portion 1351 may be designed in two different structures, the first connection portion 1341 is configured to mate with the first output pole base 123, the second connection portion 1351 is configured to mate with the second output pole base 143, the first connection portion 1341 and the second connection portion 1351 have different dimensions in the third direction, and when the harness isolation board assembly 130 is reversely assembled, interference occurs, and the harness isolation board assembly 130 cannot be installed in place.

For another example, alternatively, the first connection portion 1341 and the second connection portion 1351 may have the same structure and size, but the assembly position of the first output electrode base 123 in the third direction and the assembly position of the second output electrode base 143 in the third direction are different, that is, the first output electrode base 123 and the second output electrode base 143 are arranged in a non-central symmetry with respect to the battery 100 as a whole, and the harness isolation board assembly 130 interferes when the harness isolation board assembly 130 is reversely assembled, and the harness isolation board assembly 130 cannot be assembled in place.

For another example, alternatively, the first output pole mount 123 and the second output pole mount 143 are arranged symmetrically with respect to the battery 100 as a whole, and the first connection portion 1341 and the second connection portion 1351 are also arranged symmetrically with respect to the battery 100 as a whole. However, the first mounting hole of the mounting bolt on the first connection portion 1341 and the second mounting hole of the mounting bolt on the second connection portion 1351 are arranged in a non-central symmetry manner with respect to the whole battery 100, and before each component is welded and fixed, the first output electrode 134 needs to be fixedly connected with the first output electrode base 123 by the locking bolt, so that the bolt cannot be locked when the wire harness isolation board assembly 130 is reversely assembled, thereby realizing foolproof, and effectively reducing the reverse assembly rate of the wire harness isolation board assembly 130.

The battery and the power utilization device provided by the embodiment of the application can effectively improve the yield of battery production assembly, effectively reduce the rejection rate caused by reversely assembling the wire harness isolation board assembly in the battery production process, and are beneficial to the production of the battery.

While the present application has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the present application. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. A battery, comprising:

a battery cell group including a plurality of battery cells;

the first end plate assembly is arranged at one end of the battery cell group in the first direction;

the wire harness isolation plate assembly is arranged at one end of the battery unit group in a second direction, and the second direction is perpendicular to the first direction;

the wire harness isolation board assembly is provided with a first end and a second end which are opposite to each other in the first direction, the first end is provided with a first fool-proof part, and the first end board assembly is provided with a second fool-proof part which is matched with the first fool-proof part; the first fool-proof part is a protruding part protruding out of the first end along the first direction, the second fool-proof part is a containing groove, and an opening of the containing groove faces the wire harness isolation board assembly; the receiving slot extends through the first end plate assembly in the first direction.

2. The battery of claim 1, wherein the harness isolation board assembly comprises a harness isolation board, the first fool-proof portion being provided on the harness isolation board.

3. The battery of claim 2, wherein the harness isolation plate and the first fool-proof portion are integrally formed.

4. The battery of claim 3, wherein the first end plate assembly includes a first end plate and a first mount, the first mount being disposed at an end of the first end plate adjacent the harness isolation plate assembly in the second direction;

the wire harness isolation plate comprises a first surface facing away from the battery cell group along the second direction; the second fool-proof part is arranged on the first mounting seat, and at least part of the first mounting seat protrudes out of the first surface.

5. The battery of claim 4, wherein the harness isolation plate assembly includes a first output pole, the first end plate assembly further including a first output pole mount, the first output pole mount being provided to the first end plate; the first output electrode base and the first mounting seat are integrally formed.

6. The battery of claim 5, further comprising a second end plate assembly, the first end plate assembly and the second end plate assembly being disposed at opposite ends of the battery cell stack along the first direction;

In the second direction, the harness isolation plate includes a first surface facing away from the battery cell stack, and at least a portion of the second end plate assembly protrudes from the first surface.

7. The battery of claim 1, further comprising a second end plate assembly, the first end plate assembly and the second end plate assembly being disposed at both ends of the battery cell stack along the first direction;

8. The battery of claim 7, wherein the harness isolation plate assembly includes a first output pole having a first connection portion protruding from the first end and a second output pole having a second connection portion protruding from the second end;

the first connecting part is the first fool-proof part, the first output electrode base is the second fool-proof part, and the second connecting part is the third fool-proof part; the second output electrode base is the fourth fool-proof part.

9. The battery of claim 8, wherein at least one of a mating dimension, a mating shape, a mating position between the first connection and the first output pole mount is different from a mating dimension, a mating shape, a mating position between the corresponding second connection and the second output pole mount.

10. The battery of claim 1, wherein the number of battery cells is an odd number, and an odd number of the battery cells are stacked and connected in series along the first direction.

11. An electrical device comprising a battery as claimed in any one of claims 1 to 10 for providing electrical energy.