CN217768674U - Battery switching structure, battery connection structure, battery module and battery - Google Patents

Abstract

The application relates to a battery switching structure, a battery connecting structure, a battery module and a battery, wherein the battery switching structure is used for connecting an electrode pole of a battery core and comprises a switching piece and a plug-in shell, and one side of the plug-in shell is provided with an open accommodating cavity; the elastic clamping piece is arranged in the accommodating cavity; the elastic clamping piece is formed with an elastic clamping space communicated with the opening, and the elastic clamping space is used for being elastically clamped with the electrode pole. Through set up the grafting casing on the adaptor, can be under operator's operation, easily make the electrode utmost point post of electric core get into to the holding chamber from the opening to through the holding intracavity installation elasticity joint spare at the grafting casing, make electrode utmost point post can get into in the elasticity joint space of elasticity joint spare, with elasticity joint spare elasticity joint, and then make elasticity joint spare produce deformation and with electrode utmost point post in close contact with. Therefore, the quick plugging is realized, and meanwhile, the plugging reliability is also ensured.

Description

Battery switching structure, battery connection structure, battery module and battery

Technical Field

The present application relates to the field of battery technologies, and in particular, to a battery adapting structure, a battery connecting structure, a battery module, and a battery.

Background

With the development of the technology, the application range of the battery is wider and wider, and the battery generally comprises several battery modules, the battery modules are connected in a series/parallel connection mode through a plurality of battery cells to form a group, and two or more adjacent battery cells can be connected through a Busbar (buss).

In the conventional technology, the busbar is connected and fixed with the electrode pole of the battery cell in a bolt connection or welding mode, and the problems of poor grouping quality and low efficiency exist.

SUMMERY OF THE UTILITY MODEL

In view of above-mentioned problem, the application provides a battery switching structure, battery connection structure, battery module and battery, can solve the busbar and adopt bolted connection or welded mode to connect fixedly with the electrode utmost point post of electric core, has the quality poor and the inefficiency problem in groups.

In a first aspect, the present application provides a battery switching structure for connecting an electrode post of an electric core, the battery switching structure includes:

the adaptor comprises an inserting shell, wherein the inserting shell forms an accommodating cavity with an opening on one side; and

the elastic clamping piece is arranged in the accommodating cavity;

the elastic clamping piece is formed with an elastic clamping space communicated with the opening, and the elastic clamping space is used for being elastically clamped with the electrode pole.

Above-mentioned battery switching structure through set up the grafting casing on the adaptor, can be under operator's operation, easily make the electrode utmost point post of electric core get into to the holding chamber from the opening to through the holding intracavity installation elasticity joint spare at the grafting casing, make electrode utmost point post can get into in the elasticity joint space of elasticity joint spare, with elasticity joint spare elasticity joint, and then make elasticity joint spare produce deformation and with electrode utmost point post in close contact with. Therefore, the quick plug-in connection is realized, and simultaneously, the plug-in connection reliability is ensured.

In some embodiments, the elastic clamping member includes a plurality of elastic clamping portions arranged at intervals in a ring shape to form the elastic clamping space. Through setting up a plurality of elastic clamping portions that are cyclic annular interval and lay, can form a plurality of elastic clamping positions in the circumference of electrode utmost point post for elastic clamping spare is difficult not hard up with the contact of electrode utmost point post, and then makes the contact of elastic clamping spare and electrode utmost point post more stable and reliable, ensures the connection quality.

In some embodiments, the elastic clip member further comprises a main body, the elastic clip portion comprises a first elastic arm, and at least one end of the first elastic arm is connected to the main body. The mode through setting up first elastic arm and electrode utmost point post elasticity joint is simple, and occupation space is little, and the elasticity dynamics of elastic arm is great.

In some embodiments, the first elastic arm has a recess formed by recessing away from the plugging housing, and the recess is used for elastically clamping with the electrode pole. Through setting up the depressed part, can promote the structural strength of first elastic arm and electrode utmost point post elasticity joint department, and then improved the joint dynamics, ensure joint stability and persistence.

In some embodiments, the number of the recesses includes a plurality of recesses, and the plurality of recesses are spaced apart in a longitudinal direction of the first elastic arm. Through setting up a plurality of depressed parts, can increase the elasticity joint position of first elastic arm and motor utmost point post, and then improve the elasticity joint reliability between the two.

In some embodiments, the recesses of two adjacent first elastic arms are offset. Through the dislocation set with the depressed part of two adjacent first elastic arms, can make the distance of the depressed part of two adjacent first elastic arms pull open, and then can make the difficult atress of joint electrode utmost point post in the elasticity joint space uneven and produce the slope, improved the reliability of elasticity joint.

In some embodiments, the elastic clip member includes a first positioning portion, the plug housing includes a second positioning portion, and the first positioning portion and the second positioning portion cooperate with each other to position the elastic clip member on the plug housing. Through the cooperation of first location portion and second location portion, can make the position of elastic clamping spare fixed, and then make electrode utmost point post can get into the elastic clamping space fast and accurately in to enable elastic clamping spare and electrode utmost point post keep stable contact.

In some embodiments, one of the first positioning portion and the second positioning portion includes a positioning groove, and the other of the first positioning portion and the second positioning portion includes a positioning protrusion, and the positioning groove is matched with the positioning protrusion. The positioning of the elastic clamping piece relative to the inserting casing is realized by the matching of the positioning groove and the positioning protrusion, so that the positioning mode is simple, the installation efficiency of the elastic clamping piece on the inserting casing is improved, and the positioning is also reliable.

In some embodiments, one side of the elastic clamping piece, which faces the plug-in housing, is provided with a plurality of matching portions, the matching portions are arranged at intervals, and each matching portion is attached to the inner wall of the plug-in housing. Through setting up a plurality of cooperation portions, can make installing in the holding intracavity that elastic clamping spare more steadily leaned on, and then improve the elastic clamping reliability with electrode utmost point post.

In some embodiments, the mating portion is in line contact with an inner wall of the plug housing. Through line contact's mode, although reduced the area of contact between cooperation portion and the grafting casing, but can be favorable to increaseing the grafting cooperation packing force, and make elastic clamping spare and grafting casing in close contact with, and then make both electricity connect reliably to make elastic clamping spare not influenced by operating mode such as conventional vibration, impact and break away from the grafting casing.

In some embodiments, the adaptor further comprises an extension, one end of the extension is connected to the plug housing, and the other end of the extension extends towards the end far away from the plug housing. By providing the extension portion, the plug housing can be brought into contact with an external component through the extension portion without damaging the structure of the plug housing itself.

In a second aspect, the present application provides a battery connection structure, configured to connect electrode terminals of two adjacent battery cells, where the battery connection structure includes two battery adapter structures in the foregoing embodiments;

the battery connecting structure also comprises a first connecting piece, two ends of the first connecting piece are respectively connected with the outer sides of the inserting shells of the two battery switching structures, and the elastic clamping space of each battery switching structure is elastically clamped with the electrode pole column corresponding to one battery core;

wherein the first connecting piece extends along a straight line.

Above-mentioned battery connection structure links to each other through first connecting piece through setting up two battery switching structures, can realize the cluster/parallelly connected between the electric core to because first connecting piece is along sharp extension, consequently, can be applied to the condition that can not produce great displacement between electric core, simplified connection structure.

In a third aspect, the present application provides a battery connection structure, configured to connect electrode posts of two adjacent battery cells, where the battery connection structure includes two battery adapter structures in the foregoing embodiments;

the battery connecting structure also comprises a second connecting piece, two ends of the second connecting piece are respectively connected with the outer sides of the plug-in shells of the two battery switching structures, and the elastic clamping space of each battery switching structure is elastically clamped with the electrode pole column corresponding to one battery core;

wherein the second connecting piece has elasticity and is used for providing a force that the two battery transfer structures have the tendency of moving towards or away from each other.

Above-mentioned battery connection structure links to each other through setting up two battery switching structures, can realize between the electric core cluster/parallelly connected to because the second connecting piece has elasticity, consequently, can be applied to the condition that can produce great displacement between electric core.

In some embodiments, the second connector includes a second elastic arm, and a connecting portion, the second elastic arm and the second elastic arm are disposed opposite to each other, the connecting portion is located between the second elastic arm and the second elastic arm, two ends of the connecting portion are respectively connected to one end of the second elastic arm and one end of the second elastic arm, the other end of the second elastic arm is connected to the socket housing of one of the battery adaptor structures, and the other end of the second elastic arm is connected to the socket housing of the other one of the battery adaptor structures. Through setting up second elastic arm, third elastic arm and connecting portion, can simplify the structure of second connecting piece, and the elasticity is adjusted steadily and is leaned on.

In some embodiments, an accommodating space is formed between the plug housings of the two battery adapting structures, and the second elastic arm, the second elastic arm and the connecting portion are combined to form a concave structure which is concave towards the accommodating space. Through setting up second elastic arm, third elastic arm and connecting portion and sunken to the accommodation space, can make the second connecting piece adduction as far as possible, and avoid the protruding setting of stretching of second connecting piece to exterior structure to produce the position and interfere.

In some embodiments, the connecting portion is located in the accommodating space. The accommodation space can be fully utilized, and the occupied space of the battery connection structure is reduced.

In a fourth aspect, the present application provides a battery module, which includes a plurality of battery cells, and the battery module further includes the battery adapting structure in the foregoing embodiment; and/or

The battery connecting structure in the above embodiment.

In a fifth aspect, the present application provides a battery including the battery module in the above embodiments.

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

Drawings

Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Moreover, like reference numerals are used to refer to like elements throughout. In the drawings:

fig. 1 is a schematic structural diagram of a battery adapting structure according to some embodiments of the present application;

fig. 2 is a schematic structural view of an adaptor in a battery adaptor structure according to some embodiments of the present application;

fig. 3 is a schematic structural view of an elastic clip member in a battery adapting structure according to some embodiments of the present application;

fig. 4 is a schematic structural diagram of a battery adapter according to some embodiments of the present application;

fig. 5 is a schematic structural view of an elastic clip member in a battery adapting structure according to some embodiments of the present application;

FIG. 6 is a schematic structural view of a battery connection structure according to some embodiments of the present application;

FIG. 7 is a schematic structural view of a battery connection structure according to some embodiments of the present application;

fig. 8 is a schematic structural view illustrating a battery connecting structure according to some embodiments of the present application connected to a bracket of a battery module;

fig. 9 is a schematic structural view of a battery module according to some embodiments of the present disclosure.

The reference numbers in the detailed description are as follows:

a battery adapting structure 100;

the adapter 10, the opening 12, the accommodating cavity 13, the second positioning portion 14, the extension portion 15, the first portion 151, the second portion 152, the elastic clamping piece 20, the elastic clamping space 21, the elastic clamping portion 22, the first elastic arm 221, the recess 2211, the main body 23, the annular connecting portion 231, the first positioning portion 24, and the matching portion 25;

a battery cell 200;

an electrode post 210;

a battery connecting structure 300;

a first connector 310;

a second connecting member 410, a second elastic arm 411, a third elastic arm 412, a connecting portion 413, a fixing portion 414, and an accommodating space 420;

a battery module 500;

a stent 510.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

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 herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof in the description and claims of this application and the description of the figures above, are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase 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. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two sets), "plural pieces" refers to two or more (including two pieces).

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the directions or positional relationships indicated in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

With the rapid development of the automobile industry, the problems of environmental pollution, energy shortage, resource exhaustion, safety and the like brought by automobiles become more and more prominent. In order to maintain the sustainable development of national economy, protect human living environment and guarantee energy supply, governments of various countries do not pay huge money, and a large amount of manpower and material resources are invested, so that various ways for solving the problems are needed. The electric automobile has good environmental protection performance, not only can protect the environment, but also can relieve the energy shortage and adjust the energy structure, and ensure the energy safety. The development of electric vehicles is now a consensus of governments and the automotive industry.

The power provided by a single battery is limited, so that a plurality of battery cores are connected in a series/parallel connection mode to form a group to meet the power demand of the electric automobile, and the group battery is used as a power source of the electric automobile. At present, when batteries are grouped, the positive and negative poles of the batteries are generally connected with a bus bar (a copper bar or an aluminum bar and the like) by using a bolt connection or welding method.

The inventor notices that the bolt connection needs to be completed by an external auxiliary tool, the connection efficiency is low, and the quality problems of poor electric contact and the like are easily caused by the loosening of the bolt in the installation process. The welding mode generally adopts laser spot welding at present. Although the laser welding process is easy to realize automation, the welding process conditions are limited due to the characteristics of the laser welding process, and the thickness of the bus bar is mainly required to be not too thick, otherwise, if the laser welding process is adopted to connect the bus bar to the positive pole and the negative pole of the battery cell, relatively high energy is required, the current laser welding technology and equipment are difficult to realize stable production, the welding quality is difficult to ensure, and the contact resistance, the overcurrent capacity and the mechanical strength cannot meet the requirements.

In order to improve the grouping quality and the grouping efficiency, the inventor researches and discovers that the existing bolting or welding method is still changed in design. Specifically, the busbar is connected with the pole of the battery cell in an inserting manner. However, although the insertion method can increase the grouping efficiency, since the terminal post and the insertion housing are in hard contact, there may be an insertion gap, which makes it difficult to ensure the connection reliability, and thus the grouping quality cannot be improved.

Based on the above consideration, in order to improve the grouping quality, the inventor designs a battery switching structure through intensive research, and additionally adds an elastic clamping piece and an elastic clamping connection of a pole column on the basis of the plugging. So, not only can improve efficiency in groups through the grafting mode to can ensure to connect the reliability through elastic clamping, and then make high quality in groups.

The battery switching structure disclosed by the embodiment of the application is used for being connected with an electrode pole of a battery cell in a battery, and the battery disclosed by the embodiment of the application can be but not limited to electric devices such as vehicles, ships or aircrafts.

According to some embodiments of the present disclosure, referring to fig. 1, and please further refer to fig. 2 and fig. 3, fig. 1 is a schematic structural diagram of a battery adapting structure according to some embodiments of the present disclosure, fig. 2 is a schematic structural diagram of an adaptor in the battery adapting structure according to some embodiments of the present disclosure, and fig. 3 is a schematic structural diagram of an elastic clip in the battery adapting structure according to some embodiments of the present disclosure. The application provides a battery adapting structure 100 for connecting an electrode pole 210 of a battery cell 200. The battery adapting structure 100 includes an adapting member 10 and an elastic clamping member 20. The adapter 10 comprises a plug housing 11, the plug housing 11 forming a receiving chamber 13 with an opening 12 on one side. The elastic clamping piece 20 is arranged in the accommodating cavity 13. Wherein, the elastic clamping piece 20 is formed with an elastic clamping space 21 communicated with the opening 12, and the elastic clamping space 21 is used for elastically clamping the electrode pole 210.

The electrode post 210, i.e., the electrode terminal, is cylindrical, specifically cylindrical or prismatic, etc., so as to be inserted into the elastic clamping space 21.

The battery adapting structure 100 of the present application can be connected to a single electrode post 210 of a single battery cell 200, that is, the elastic clamping space 21 is elastically clamped to the single electrode post 210 only.

The elastic clamping space 21 is used for elastically clamping the electrode pole 210, that is, the electrode pole 210 can extend into the elastic clamping space 21 to be elastically clamped with the elastic clamping piece 20.

The elasticity of the elastic clamping piece and the elastic clamping means that the object can recover the original size and shape after being deformed. Therefore, after the electrode post 210 is elastically clamped with the elastic clamping member 20, the elastic clamping member 20 deforms under the action of external force, so that the electrode post 210 and the elastic clamping member 20 are clamped tightly, and the battery adapting structure 100 and the electrode post 210 are kept in close contact. When the electrode post 210 is separated from the elastic clamping member 20, the elastic clamping member 20 loses the external force to recover the deformation.

It should be noted that, the adaptor 10 and the elastic member 20 are both made of an electrically conductive material, and may be made of an electrically conductive metal material, such as copper or aluminum, so that the electrode post 210 is electrically connected to an external component through the battery adaptor structure.

Through set up plug housing 11 on adaptor 10, can be under operator's operation, easily make the electrode utmost point post 210 of electric core 200 get into to holding chamber 13 from opening 12 to through installation elasticity joint spare 20 in holding chamber 13 of plug housing 11, make electrode utmost point post 210 can get into in the elasticity joint space 21 of elasticity joint spare 20, with elasticity joint spare 20 elasticity joint, and then make elasticity joint spare 20 produce deformation and with electrode utmost point post 210 in close contact with. Therefore, the quick plugging is realized, and meanwhile, the plugging reliability is also ensured.

According to some embodiments of the present application, optionally, with reference to fig. 3, the elastic clamping member 20 includes a plurality of elastic clamping portions 22, and the elastic clamping portions 22 are annularly arranged at intervals to form an elastic clamping space 21.

The plurality of elastic clamping portions 22 are arranged at intervals in an annular shape, which may be determined according to the outline shape of the electrode pole 210, specifically, when the electrode pole 210 is cylindrical, the plurality of elastic clamping portions 22 are arranged at intervals in an annular shape in a circular shape, and when the electrode pole 210 is prismatic, as shown in fig. 4 and 5, the plurality of elastic clamping portions 22 are arranged at intervals in an annular shape in a prismatic shape.

Through setting up a plurality of elastic clamping portion 22 that are cyclic annular interval and lay, can form a plurality of elastic clamping positions in electrode utmost point post 210's circumference for elastic clamping spare 20 is difficult not hard up with electrode utmost point post 210's contact, and then makes elastic clamping spare 20 more stable and reliable with electrode utmost point post 210's contact, ensures to connect the quality.

Of course, according to other embodiments of the present application, optionally, the elastic clamping member 20 includes a plurality of elastic clamping portions 22, the plurality of elastic clamping portions 22 are disposed at a semi-annular interval, and according to other embodiments of the present application, optionally, the plurality of elastic clamping portions 22 are disposed at a linear interval, so that an elastic clamping space 21 can be defined between one side of the plurality of elastic clamping portions 22 and the inner wall of the inserting casing 11.

According to some embodiments of the present application, optionally, with continued reference to fig. 3, the elastic clip member 20 further includes a main body 23, the elastic clip portion 22 includes a first elastic arm 221, and at least one end of the first elastic arm 221 is connected to the main body 23.

The elastic clamping connection mode of the first elastic arm 221 and the electrode pole 210 is simple, the occupied space is small, and the elastic force of the elastic arm is large.

Specifically, both ends of the first elastic arm 221 are connected to the main body 23. Therefore, the shape retaining capability of the first elastic arm 221 can be improved, and the first elastic arm 221 is prevented from deforming to affect the insertion of the electrode post 210 into the elastic clamping space 21.

Specifically, the main body 23 includes an annular connecting portion 231, and the annular connecting portion 231 is located at one end of a plurality of elastic clamping portions 22 arranged at intervals in an annular shape and connected to one end of a plurality of first elastic arms 221. When both ends of the first elastic arm 221 are connected to the main body 23, the main body 23 includes two annular connection portions 231, and the two annular connection portions 231 are respectively located at both ends of the plurality of elastic clamping portions 22 arranged at annular intervals and are respectively connected to both ends of the plurality of first elastic arms 221.

By providing the annular connecting portion 231, not only the structural reliability of the elastic engaging portion 22 can be improved, but also the form of the elastic engaging space 21 formed by the plurality of elastic engaging portions 22 can be stabilized.

The first elastic arm 221 of the present application extends along the axial direction of the accommodating cavity 13, i.e., the height direction of the electrode post 210. In other embodiments, the first elastic arm 221 can also extend along a direction perpendicular to the axial direction of the accommodating cavity 13, that is, the width direction of the electrode post 210, which is not limited herein.

According to some embodiments of the present application, optionally, with continued reference to fig. 3, the first elastic arm 221 has a recess 2211 formed by recessing away from the plug housing 11, and the recess 2211 is configured to elastically snap-fit with the electrode post 210.

Through setting up depressed part 2211, can promote the structural strength of first elastic arm 221 and electrode utmost point post 210 elasticity joint department, and then improve the joint dynamics, ensure joint stability and persistence.

Specifically, the recess 2211 may be formed by bending the first elastic arm 221.

Specifically, the cross-sectional shape of the recess 2211 may be circular arc, so that the recess 2211 and the electrode post 210 are in line contact elastic clamping connection, and the contact area is reduced to enable the two to be tightly attached.

Specifically, the recess 2211 may be disposed at the middle of the first elastic arm 221. Thus, the recess 2211 can be in contact with the middle portion of the electrode post 210, and reliable contact between the electrode post and the electrode post is ensured.

According to some embodiments of the present application, optionally, with continued reference to fig. 3, the number of the recesses 2211 includes a plurality of recesses 2211, and the plurality of recesses 2211 are arranged at intervals along the longitudinal direction of the first elastic arm 221.

Through setting up a plurality of depressed parts 221, can increase the elasticity joint position of first elastic arm 221 and motor pole 210, and then improve the elasticity joint reliability between the two.

In a preferred embodiment of the present application, referring to fig. 5, the recess 221 of each first elastic arm 221 includes two recesses. The two recesses 221 are symmetrically disposed along a center line of the first elastic arm 221.

According to some embodiments of the present application, optionally, please continue to refer to fig. 5, the recesses 221 of two adjacent first elastic arms 221 are disposed in a staggered manner.

Through the dislocation set with the depressed part 221 of two adjacent first elastic arms 221, can make the distance of the depressed part 221 of two adjacent first elastic arms 221 pull open, and then can make the difficult atress of the electrode utmost point post 210 of joint in elasticity joint space 21 uneven and produce the slope, improved the reliability of elasticity joint.

According to some embodiments of the present application, optionally, with continued reference to fig. 2 and fig. 3, the elastic clip 20 includes a first positioning portion 24, the plug-in housing 11 includes a second positioning portion 14, and the first positioning portion 24 and the second positioning portion 14 are used to position the elastic clip 20 on the plug-in housing 11.

Through the cooperation of first location portion 24 and second location portion 14, can make the position of elastic clamping piece 20 fixed, and then make in electrode utmost point post 210 can get into elastic clamping space 21 fast and accurately to enable elastic clamping piece 20 and electrode utmost point post 210 keep stable contact.

According to some embodiments of the present application, optionally, with continued reference to fig. 2 and 3, one of the first positioning portion 24 and the second positioning portion 14 includes a positioning groove, and the other includes a positioning protrusion, and the positioning groove is matched with the positioning protrusion.

Realize the location of the relative grafting casing 11 of elastic clamping piece 20 through setting up positioning groove and the bellied cooperation in location, not only the locate mode is simple to improve the installation effectiveness of elastic clamping piece 20 on grafting casing 11, and the location is also reliable.

In a preferred embodiment, the first positioning portion 24 includes a positioning projection, and the second positioning portion 14 includes a positioning groove. Thus, the installation of the elastic clamping piece 20 in the accommodating cavity 13 can be facilitated.

Specifically, the first positioning portions 24 include a plurality of first positioning portions 24, the plurality of first positioning portions 24 are respectively disposed at two ends of the elastic clip 20 along the axial direction thereof, the second positioning portions 14 include a plurality of second positioning portions 14, and the plurality of second positioning portions 14 are respectively disposed at two ends of the plug-in housing 11 along the axial direction thereof. Specifically, the first positioning portion 24 is connected to the annular connecting portion 231 of the main body 23.

More specifically, when the second positioning portion 14 includes a positioning groove, the positioning groove can penetrate through a side wall of the plug housing 11 and is configured to form a communication port on an axial end face of the plug housing 11. The positioning projection of the first positioning portion 24 can enter the positioning groove from the communication port.

Specifically, the first positioning portion 24 includes a plurality of first positioning portions 24, the plurality of first positioning portions 24 are disposed at intervals along the circumferential direction of the elastic clamping member 20, the second positioning portion 14 includes a plurality of second positioning portions 14, and each first positioning portion 24 is matched with a corresponding second positioning portion 14. Preferably, the number of the first positioning portions 24 is at least three. Therefore, triangular positioning can be realized, and reliable positioning is ensured.

According to some embodiments of the present disclosure, optionally, referring to fig. 5, one side of the elastic clip 20 facing the plug housing 11 has a plurality of matching portions 25, the matching portions 25 are disposed at intervals, and each matching portion 25 is attached to an inner wall of the plug housing 11. Preferably, a plurality of fitting portions 25 are respectively provided at both ends of the elastic snap-in member 20 in an axial direction thereof.

Through setting up a plurality of cooperation portions 25, can make installing in holding chamber 13 that elastic clamping spare 20 more steadily leaned on, and then improve the elastic clamping reliability with electrode utmost point post 21.

Specifically, the plurality of fitting portions 25 are provided at intervals in the circumferential direction of the elastic snap member 20. More specifically, the plurality of fitting portions 25 are provided on the annular connecting portion 231 of the main body 23.

According to some embodiments of the present application, optionally, with continued reference to fig. 5, the mating portion 25 is in line contact with the inner wall of the plug housing 11.

Through the line contact mode, although the area of contact between cooperation portion 25 and the grafting casing 11 has been reduced, can be favorable to increaseing the grafting cooperation packing force, and make elastic clamping spare 20 and grafting casing 11 in close contact with, and then make both electricity connect reliably to make elastic clamping spare 20 not influenced by operating mode such as conventional vibration, impact and break away from grafting casing 11.

Specifically, the fitting portion 25 is protruded to the outside of the elastic clip 20. More specifically, the cross-sectional shape of the fitting portion 25 is an arc.

According to some embodiments of the present application, optionally, with continued reference to fig. 1, the adaptor 10 further includes an extension portion 15, one end of the extension portion 15 is connected to the plug housing 11, and the other end extends toward an end away from the plug housing 11.

By providing the extension 15, the plug housing 11 can be brought into contact with external components via the extension 15 without destroying the structure of the plug housing 11 itself.

Specifically, with reference to fig. 2, the extension portion 15 includes a first portion 151 and a second portion 152, the first portion 151 is connected to the plug housing 11, and the second portion 152 is connected to the first portion 151 and is disposed at an angle to the first portion 151. More specifically, the first portion 151 is located on one side of the plug housing 11 in the radial direction of the plug housing 11 and extends in the axial direction parallel to the plug housing 11, and the angle between the second portion 152 and the first portion 151 is greater than 90 degrees.

Referring to fig. 6, according to some embodiments of the present application, fig. 6 is a schematic structural view of a battery connection structure 300 according to some embodiments of the present application. The present application further provides a battery connection structure 300 for connecting the electrode posts 210 of two adjacent battery cells 200. The battery connection structure 300 includes two or more battery adapter structures 100 according to any of the embodiments. The battery connection structure 300 further includes a first connection member 310, two ends of the first connection member 310 are respectively connected to the outer sides of the adaptor members 10 of the battery adaptor structure 100, and the elastic clamping space 21 of each battery adaptor structure 100 is elastically clamped to the electrode post 210 of a corresponding battery cell 200. Wherein the first connector 310 extends along a straight line.

Specifically, the first connector 310 is connected to the plug housing 11 via the extension 15 of the adapter 10.

By arranging the two battery transfer structures 100 to be connected through the first connecting member 310, series/parallel connection between the battery cells 200 can be realized, and the first connecting member 310 extends along a straight line, so that the battery transfer structure can be applied to the situation that large displacement cannot be generated between the battery cells 200, and the connecting structure is simplified.

Referring to fig. 7, according to some embodiments of the present application, fig. 7 is a schematic structural view of a battery connecting structure 300 according to some embodiments of the present application. The present application further provides a battery connection structure 300 for connecting the electrode posts 210 of two adjacent battery cells 200. The battery connection structure 300 includes two or more battery adapter structures 100 according to any of the embodiments. The battery connection structure 300 further includes a second connection member 410, two ends of the second connection member 410 are respectively connected to the outer sides of the insertion housings 11 of the battery adapter structures 100, and the elastic clamping space 21 of each battery adapter structure 100 is elastically clamped to the electrode post 210 of a corresponding battery cell 200. Wherein the second connection member 410 has elasticity for providing a force that the two battery transit structures 100 have a tendency to move toward each other.

It should be noted that when the distance between the centers of the electrode posts 210 of the two battery cells 200 increases, the second connecting member 410 can provide a force that the two battery transition structures 100 have a tendency to move toward each other, so that the electrode posts 210 are close to each other, and the distance between the electrode posts is restored. When the distance between the centers of the electrode posts 210 of the two battery cells 200 becomes smaller, the second connecting member 410 can provide a force that the two battery transition structures 100 have a tendency to move away from each other, so that the two electrode posts 210 move away from each other, and the distance between the two electrode posts is restored as before.

Specifically, the second connector 410 is connected to the plug housing 11 through the extension 15 of the adaptor 10.

By arranging the two battery transfer structures 100 to be connected through the second connecting member 410, series/parallel connection between the battery cells 200 can be realized, and the second connecting member 410 is elastic, so that the battery transfer structures can be applied to the situation that large displacement is generated between the battery cells 200.

According to some embodiments of the present application, optionally, referring to fig. 7 again, the second connecting element 410 includes a second elastic arm 411, a third elastic arm 412 and a connecting portion 413, the second elastic arm 411 and the third elastic arm 412 are disposed opposite to each other, the connecting portion 413 is located between the second elastic arm 411 and the third elastic arm 412, two ends of the connecting portion 413 are respectively connected to one end of the second elastic arm 411 and one end of the third elastic arm 412, the other end of the second elastic arm 411 is connected to the plug housing 11 of one of the battery adaptor structures 100, and the other end of the third elastic arm 412 is connected to the plug housing 11 of another one of the battery adaptor structures 100.

By providing the second elastic arm 411, the third elastic arm 412 and the connection part 413, the structure of the second connection member 410 can be simplified, and the elastic adjustment is stable.

Specifically, the second elastic arm 411 and the third elastic arm 412 are disposed opposite to each other along the spacing direction of the electrode posts 210 of the two battery cells 200. Thus, the elastic action direction of the elastic arm is the same as the spacing direction between the electrode posts 210, and the distance between the electrode posts 210 can be rapidly adjusted.

Specifically, the second elastic arm 411, the third elastic arm 412 and the connecting portion 413 are disposed at an angle, and preferably, the second elastic arm 411, the third elastic arm 412 and the connecting portion 413 are disposed at an included angle of 90 degrees. Thus, the elasticity of the second elastic arm 411 and the third elastic arm 412 relative to the connecting part 413 is sufficient, and the reliability of the distance adjustment is improved.

According to some embodiments of the present application, optionally, referring to fig. 7, an accommodating space 420 is formed between the plug housings 11 of the two battery adapting structures 100, and the second elastic arm 411, the third elastic arm 412 and the connecting portion 413 are combined to form a concave structure that is concave towards the accommodating space 420.

By disposing the second elastic arm 411, the third elastic arm 412 and the connecting portion 413 to be recessed into the accommodating space 420, the second connecting element 410 can be retracted as much as possible, and the position interference of the protruding extension of the second connecting element 410 to the external structure is avoided.

According to some embodiments of the present application, optionally, with reference to fig. 7, the connection portion 413 is located in the accommodating space 420. Thus, the accommodating space 420 can be fully utilized, and the occupied space of the battery connecting structure 300 is reduced.

It should be noted that the second elastic arm 411 and the third elastic arm 412 are also at least partially located in the accommodating space 420.

According to some embodiments of the present application, optionally, referring to fig. 7 and 8, the second connector 410 further comprises a fixing portion 414, the fixing portion 414 being capable of being connected with an external component.

Specifically, the fixing part 414 can be connected with the bracket 510 of the battery module 500. The holder 510 is located at one side of the plurality of battery cells 200, and is used to position the plurality of battery cells 200. More specifically, the fixing portion 414 can be snap-fit or insert-molded with the bracket 510. Thus, the whole battery connecting structure 300 can be integrated with the bracket 510 to form an integrated quick-plug structure.

Specifically, the fixing portion 414 is connected to the connection portion 413. Thus, the force applied by the second elastic arm 411 and the third elastic arm 412 can be more stable.

Referring to fig. 9, according to some embodiments of the present application, fig. 9 is a schematic structural view of a battery module according to some embodiments of the present application. The present application further provides a battery module 500, which includes a plurality of battery cells 200, and the battery module 500 further includes the battery adapter structure 100 of any of the above schemes.

According to some embodiments of the present application, please refer to fig. 9, the present application further provides a battery module 500, which includes a plurality of battery cells 200, and the battery module 500 further includes the battery connecting structure 300 according to any of the above solutions.

According to some embodiments of the present application, please refer to fig. 9, the present application further provides a battery module 500, which includes a plurality of battery cells 200, and the battery module 500 further includes the battery connecting structure 300 according to any of the above solutions.

According to some embodiments of the present application, please refer to fig. 9, the present application further provides a battery module 500, which includes a plurality of battery cells 200, and the battery module 500 further includes the battery adapter structure 100 according to any one of the above aspects and the battery connecting structure 300 according to any one of the above aspects.

According to some embodiments of the present application, please continue to refer to fig. 9, the present application further provides a battery module 500, which includes a plurality of battery cells 200, and the battery module 500 further includes the battery adapting structure 100 according to any one of the above aspects and the battery connecting structure 300 according to any one of the above aspects.

According to some embodiments of the present application, please continue to refer to fig. 9, the present application further provides a battery module 500, which includes a plurality of battery cells 200, and the battery module 500 further includes the battery connection structure 300 according to any of the above aspects and the battery connection structure 300 according to any of the above aspects.

According to some embodiments of the present application, please continue to refer to fig. 9, the present application further provides a battery module 500, which includes a plurality of battery cells 200, and the battery module 500 further includes the battery adapting structure 100 according to any one of the above solutions, the battery connecting structure 300 according to any one of the above solutions, and the battery connecting structure 300 according to any one of the above solutions.

It should be noted that, when the battery connection structure 300 is included in the above-mentioned aspect of the battery module 500, the battery connection structure 300 can connect the electrode posts 210 of two adjacent battery cells 200 in the width direction of the battery module 500, and when the battery connection structure 300 is included in the above-mentioned aspect of the battery module 500, the battery connection structure 300 can connect the electrode posts 210 of two separated battery cells 200 in the length direction of the battery module 500.

It should be noted that the width direction of the battery module 500 is generally the non-battery cell 200 expansion direction or the non-driving direction, and is less affected by the expansion force or the impact force, so the direct connection structure of the battery connection structure 300 can also bear the normal load requirement. And battery module 500 length direction generally is the big face inflation of electric core 200 or the direction of driving a vehicle, receives bulging force or impact force influence for battery connection structure 300 between electric core utmost point post 210 need set up certain elastic deformation spare buffering energy-absorbing structure, thereby reduces the direct power of dragging to electric core utmost point post 210, guarantees the reliability of product.

According to some embodiments of the present application, the present application also provides a battery including the battery module 500 of any one of the above aspects.

According to some embodiments of the present application, referring to fig. 1 to 3, the present application provides a battery adapting structure 100 for connecting an electrode post 210 of a battery cell 200. The battery adapting structure 100 includes an adapting member 10 and an elastic clamping member 20. The adaptor 10 comprises a plug housing 11, the plug housing 11 forming a receiving chamber 13 with an opening 12 at one side. The elastic clamping piece 20 is arranged in the accommodating cavity 13. Wherein, the elastic clamping piece 20 is formed with an elastic clamping space 21 communicated with the opening 12, and the elastic clamping space 21 is used for elastically clamping the electrode pole 210. The elastic clamping member 20 includes a plurality of elastic clamping portions 22, and the elastic clamping portions 22 are annularly arranged at intervals to form an elastic clamping space 21. The elastic clamping member 20 further includes a main body 23, the main body 23 includes two annular connecting portions 231, the two annular connecting portions 231 are located at two ends of a plurality of elastic clamping portions 22 arranged at annular intervals, the elastic clamping portions 22 include first elastic arms 221, and two ends of the first elastic arms 221 are connected with the two annular connecting portions 231 respectively. The first elastic arm 221 has a recess 2211 formed by recessing away from the plug housing 11, and the recess 2211 is used for elastically clamping with the electrode post 210. The cross-sectional shape of the recess 2211 may be specifically circular arc-shaped. The recess 2211 may be disposed at the middle of the first elastic arm 221. The elastic clamping piece 20 comprises a plurality of positioning protrusions, the plug-in housing 11 comprises a plurality of positioning grooves, and the positioning grooves are matched with the positioning protrusions so that the elastic clamping piece 20 is positioned in the plug-in housing 11. The plurality of positioning protrusions are respectively arranged at two axial ends of the elastic clamping piece 20, and the plurality of positioning grooves are respectively arranged at two axial ends of the inserting casing 11. One side of elasticity joint spare 20 towards grafting casing 11 has a plurality of cooperation portions 25, and the interval sets up between a plurality of cooperation portions 25, and each cooperation portion 25 is laminated mutually with the inner wall of grafting casing 11. The matching part 25 is convexly arranged on the outer side of the elastic clamping piece 20. The cross-sectional shape of the fitting portion 25 is arcuate. The adaptor 10 further comprises an extension 15, one end of the extension 15 being connected to the plug housing 11 and the other end extending towards the end remote from the plug housing 11. The extension 15 comprises a first portion 151 and a second portion 152, the first portion 151 being connected to the plug housing 11, the second portion 152 being connected to the first portion 151 and being arranged at an angle to the first portion 151. The first portion 151 extends in an axial direction parallel to the plug housing 11, and the second portion 152 is at an angle of more than 90 degrees to the first portion 151.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims (18)

1. A battery transition structure (100) for connecting an electrode post (210) of a battery cell (200), the battery transition structure (100) comprising:

the adapter (10) comprises a plug-in housing (11), wherein the plug-in housing (11) forms an accommodating cavity (13) with an opening (12) on one side; and

the elastic clamping piece (20) is arranged in the accommodating cavity (13);

wherein, elasticity joint spare (20) be formed with elasticity joint space (21) of opening intercommunication, elasticity joint space (21) be used for with electrode utmost point post (210) elasticity joint.

2. The battery adapting structure (100) according to claim 1, wherein the elastic clamping member (20) comprises a plurality of elastic clamping portions (22), and the plurality of elastic clamping portions (22) are annularly arranged at intervals to form the elastic clamping space (21).

3. The battery transfer structure (100) of claim 2, wherein the resilient clip (20) further comprises a main body (23), the resilient clip portion (22) comprises a first resilient arm (221), and at least one end of the first resilient arm (221) is connected to the main body (23).

4. The battery adapting structure (100) according to claim 3, wherein the first elastic arm (221) has a recess (2211) formed by recessing away from the plug-in housing (11), and the recess (2211) is used for elastically clamping with the electrode post (210).

5. The battery transit structure (100) according to claim 4, wherein the number of the recesses (2211) comprises a plurality of recesses (2211), and the plurality of recesses (2211) are arranged at intervals along the lengthwise direction of the first elastic arm (221).

6. The battery transition structure (100) according to claim 4, wherein the recesses (2211) of two adjacent first elastic arms (221) are arranged in a staggered manner.

7. The battery adapting structure (100) according to claim 1, wherein the elastic clamping member (20) comprises a first positioning portion (24), the plug housing (11) comprises a second positioning portion (14), and the first positioning portion (24) is matched with the second positioning portion (14) to position the elastic clamping member (20) on the plug housing (11).

8. The battery adapting structure (100) according to claim 7, wherein one of the first positioning portion (24) and the second positioning portion (14) comprises a positioning groove, and the other comprises a positioning protrusion, and the positioning groove is matched with the positioning protrusion.

9. The battery adapting structure (100) according to claim 1, wherein a side of the elastic clamping member (20) facing the plug-in housing (11) is provided with a plurality of engaging portions (25), the engaging portions (25) are arranged at intervals, and each engaging portion (25) is attached to an inner wall of the plug-in housing (11).

10. The battery transfer structure (100) according to claim 9, wherein the fitting portion (25) is in line contact with an inner wall of the plug housing (11).

11. A battery transfer structure (100) according to claim 1, wherein the transfer member (10) further comprises an extension portion (15), one end of the extension portion (15) is connected to the plug housing (11), and the other end extends toward the end away from the plug housing (11).

12. A battery connection structure (300) for connecting electrode posts (210) of two adjacent battery cells (200), wherein the battery connection structure (300) comprises two battery adapting structures (100) according to any one of claims 1 to 11;

the battery connecting structure (300) further comprises a first connecting piece (310), two ends of the first connecting piece (310) are respectively connected with the outer sides of the inserting-connecting shells (11) of the two battery switching structures (100), and the elastic clamping space (21) of each battery switching structure (100) is elastically clamped with the electrode pole column (210) of the corresponding battery core;

wherein the first connector (310) extends along a straight line.

13. A battery connection structure (300) for connecting electrode posts (210) of two adjacent battery cells (200), wherein the battery connection structure (300) comprises two battery adapting structures (100) according to any one of claims 1 to 11;

the battery connecting structure (300) further comprises a second connecting piece (410), two ends of the second connecting piece (410) are respectively connected with the outer sides of the inserting housings (11) of the two battery switching structures (100), and the elastic clamping space (21) of each battery switching structure (100) is elastically clamped with the electrode pole (210) of the corresponding battery core;

wherein the second connecting member (410) has elasticity for providing a force that the two battery transfer structures (100) have a tendency to move toward or away from each other.

14. The battery connecting structure (300) according to claim 13, wherein the second connecting member (410) comprises a second resilient arm (411), a third resilient arm (412) and a connecting portion (413), the second resilient arm (411) and the third resilient arm (412) are disposed opposite to each other, the connecting portion (413) is located between the second resilient arm (411) and the third resilient arm (412), two ends of the connecting portion (413) are respectively connected to one end of the second resilient arm (411) and one end of the third resilient arm (412), the other end of the second resilient arm (411) is connected to the plug housing (11) of one of the battery switching structures (100), and the other end of the third resilient arm (412) is connected to the plug housing (11) of the other battery switching structure (100).

15. The battery connection structure (300) according to claim 14, wherein a receiving space (420) is formed between the plug housings (11) of the two battery adapter structures (100), and the second resilient arm (411), the third resilient arm (412) and the connecting portion (413) are combined to form a concave structure recessed toward the receiving space (420).

16. The battery connecting structure (300) according to claim 15, wherein the connecting portion (413) is located in the accommodating space (420).

17. A battery module (500) comprising a plurality of battery cells (200), wherein the battery module (500) further comprises the battery adapting structure (100) according to any one of claims 1 to 11; and/or

The battery connecting structure (300) according to claim 12; and/or

The battery connecting structure (300) according to any one of claims 13 to 16.

18. A battery comprising the battery module (500) according to claim 17.

Images