CN217114491U - Assembly fixture and assembly device - Google Patents

Abstract

The application provides an assembly fixture and an assembly device. The assembling tool is used for assembling a battery, the battery comprises a plurality of battery monomers which are arranged side by side along a preset direction, a pole column is arranged on the end face of each battery monomer, the assembling tool comprises a tool body, a groove is formed in the surface of the tool body, the groove is formed in the edge of the preset direction and extends, the groove is used for containing the pole column, and the surface of the tool body is used for being attached to the end face to position each battery monomer. According to the technical scheme, the positioning accuracy of the battery monomer can be improved, the assembly accuracy of the battery monomer is improved, the gluing quality of the battery monomer can be ensured, and the yield of subsequent welding installation is improved.

Description

Assembly fixture and assembly device

Technical Field

The application relates to the technical field of battery manufacturing, in particular to an assembling tool and an assembling device.

Background

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

To achieve a battery with a greater amount of stored charge, a greater number of cells may be assembled to create a larger cell stack and multiple rows of cell stacks assembled together to form the battery. How to ensure the assembly accuracy of each battery cell in the battery is a current technical difficulty.

SUMMERY OF THE UTILITY MODEL

The present application is directed to solving at least one of the problems in the prior art. For this reason, an object of this application is to propose an assembly fixture to improve the problem of assembly precision when the battery monomer assembles.

The embodiment of the first aspect of the application provides an assembly fixture for assembling a battery, the battery includes a plurality of battery monomers that set up side by side along preset direction, be provided with utmost point post on the free terminal surface of battery. The assembling tool comprises a tool body, wherein a groove is formed in the surface of the tool body and extends in the preset direction, the groove is used for accommodating the pole, and the surface of the tool body is used for being attached to the end face to position the battery monomer.

Among the technical scheme of this application embodiment, through set up the recess that is used for holding utmost point post on the frock body and make the free terminal surface of battery and the laminating of the surface of frock body to carry on spacingly and utilize the free shoulder of battery to fix a position the free utmost point post of battery of flip-chip on assembly fixture, thereby improve the free positioning accuracy of battery, improve the free assembly precision of battery. In addition, the single flip-chip assembly of battery can be convenient for carry out the rubber coating and be convenient for inspect the rubber coating area of the free bottom of battery to ensure the rubber coating quality, in order to avoid forming great utmost point post difference in height because of the thick difference of bottom of the box rubber coating glue, improve the yields of follow-up welding installation.

In some embodiments, the groove is a through groove, and the through groove penetrates through two side surfaces of the tool body in the preset direction. Set up the recess into leading to the groove through the aforesaid, can be convenient for place the free utmost point post of battery in the recess to be convenient for the free flip-chip of battery, in order to improve the free assembly quality of battery.

In some embodiments, the depth of the groove in the thickness direction of the tool body is greater than the height of the pole extending from the end face, and the thickness direction is perpendicular to the surface of the tool body. The depth of the groove is set to be larger than the height of the pole, so that the contact between the pole and the bottom wall of the groove can be avoided, and the pole is prevented from colliding and wearing.

In some embodiments, the pole includes two poles arranged at intervals along a lateral direction of the tool body, and the groove includes a first groove portion and a second groove portion arranged at intervals along the lateral direction, the first groove portion and the second groove portion are respectively used for accommodating the two poles, and the lateral direction is perpendicular to the preset direction. Two utmost point posts are held respectively through setting up two recess portions to promote utmost point post spacing on the frock body, thereby further improve the free assembly quality of battery.

In some embodiments, a width of at least one of the first and second groove portions in the lateral direction is greater than a maximum dimension of the pole in the lateral direction. The width of the sub-groove is set to be larger than that of the pole column, so that the edge contact between the pole column and the groove part can be avoided, and the collision and abrasion of the pole column are avoided.

In some embodiments, the groove further includes a third groove portion located between the first groove portion and the second groove portion, and a distance between a bottom wall of the third groove portion and the body surface in a thickness direction of the tool body is in a range of 2mm to 3 mm. From this, can realize dodging the part between the utmost point post when the wearing and tearing that collide with of, it is spacing that the peripheral both sides of utmost point post all have the lateral wall of the recess portion that corresponds to promote utmost point post spacing on the frock body, further improve the free assembly quality of battery.

In some embodiments, the tool body is provided with a plurality of grooves, the grooves are arranged at intervals along the lateral direction of the tool body, the lateral direction is perpendicular to the preset direction, the battery comprises a plurality of rows of battery monomer sets, each row of battery monomer set comprises a plurality of battery monomers arranged side by side along the preset direction, and the grooves are respectively used for accommodating the plurality of rows of battery monomer sets. Through setting up a plurality of recesses, can realize that multirow module flip-chip income case simultaneously. Compared with the mode that the battery monomer groups are arranged row by row and are normally loaded into the box in the related art, the assembly tool with the characteristics can realize that all the battery monomer groups needing to be loaded into the box are integrally shaped and inversely loaded on the assembly tool, so that the risk that the whole box of the battery monomer groups are scrapped if the one row of the battery monomer groups are abnormally loaded into the box is avoided, and the assembly efficiency and the quality of the battery monomers are effectively improved.

In some embodiments, the assembly tool further includes a limiting structure, and the limiting structure is parallel to the preset direction and located on at least one side of the groove. Set up limit structure through one side or both sides department at the recess, can restrict the position of battery monomer on the frock body on the one hand to avoid battery monomer to take place the dislocation in the pressurization process, promote the free location of battery, on the other hand can realize the not clearance arrangement between the battery monomer of arranging.

In some embodiments, the assembling tool includes a plurality of limiting structures and a plurality of grooves, and each limiting structure is disposed between two adjacent grooves. Through all corresponding limit structure in every recess both sides, can guarantee that every row of battery monomer group all can independently fix a position the installation to avoid assembly tolerance's accumulation, ensure the installation quality of follow-up assembly part on battery monomer group.

In some embodiments, the distance between the adjacent surfaces of two adjacent limiting structures is equal to the width of the battery cell along the lateral direction of the tool body, and the lateral direction is perpendicular to the preset direction. Through the size setting, on the one hand, the battery monomer can be conveniently placed between the adjacent limiting structures, interference between the battery monomer and the limiting structures is avoided, on the other hand, the gap between the limiting structures and the battery monomer can be prevented from being too large, and therefore dislocation of the battery monomer in the process of pressurizing the battery monomer group is avoided.

In some embodiments, the body surface includes a surface portion located between the adjacent limiting structure and the groove, the end surface includes an end surface portion located between a side surface of the adjacent battery cell in the lateral direction and the terminal post, and a size of the surface portion in the lateral direction is smaller than a minimum distance of the end surface portion in the lateral direction. Through the arrangement, the edge contact between the pole and the groove can be avoided, so that the collision and abrasion of the pole are avoided.

In some embodiments, the limiting structure comprises a first mounting part, a second mounting part is further arranged on the surface of the body, and the first mounting part is detachably arranged on the second mounting part. Through installing limit structure detachably on the frock body, can be convenient for replace different limit structure to the clearance between the adjustment battery monomer group is in order to satisfy the different clearance requirements between the battery monomer group.

In some embodiments, the second mounting portion is a recessed structure for receiving the first mounting portion. Through setting up sunk structure, can avoid limit structure's first installation department to interfere the location of battery monomer on the frock body.

In some embodiments, the length of the limiting structure along the preset direction is smaller than the length of the battery along the preset direction. Through the length of the limiting structure, the interference of the assembly end plate and the limiting structure when the assembly end plate is pressurized can be avoided, and therefore the influence on the further pressurization of the battery monomer is influenced.

In some embodiments, the stop structure is made of a flexible material. Therefore, the assembly tool can be prevented from damaging the surface of the battery cell.

In some embodiments, an insulating layer is disposed on a bottom wall of the recess. Therefore, the short circuit caused by the contact of the pole and the bottom wall of the groove can be avoided.

Embodiments of a second aspect of the present application provide an assembly apparatus. Assembly quality includes according to the assembly fixture of this application for a plurality of battery monomer that set up side by side along predetermineeing the direction are flipped to the flip-chip.

Among the technical scheme of this application embodiment, through set up the recess that is used for holding utmost point post on the frock body and make the free terminal surface of battery and the laminating of the surface of frock body to carry on spacingly and utilize the free shoulder of battery to fix a position the free utmost point post of battery of flip-chip on assembly fixture, thereby improve the free positioning accuracy of battery, improve the free assembly precision of battery. In addition, the single flip-chip assembly of battery can be convenient for carry out the rubber coating and be convenient for inspect the rubber coating area of the free bottom of battery to ensure the rubber coating quality, in order to avoid forming great utmost point post difference in height because of the thick difference of bottom of the box rubber coating glue, improve the yields of follow-up welding installation.

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

In the drawings, like reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily to scale. It is appreciated that these drawings depict only some embodiments in accordance with the disclosure and are therefore not to be considered limiting of its scope.

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

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

fig. 3 is an exploded view of a battery cell according to some embodiments of the present disclosure;

fig. 4 is a schematic view of a battery cell stack according to some embodiments of the present application;

FIG. 5 is a schematic view of an assembly tool according to some embodiments of the present application;

fig. 6 is a schematic view of the battery cell pack of fig. 4 and the assembly fixture of fig. 5 assembled together;

fig. 7 is a partially enlarged view of the battery cell and the assembly fixture in fig. 6 from another angle;

FIG. 8 shows a close-up view of the assembly fixture of FIG. 5 from another angle;

FIG. 9 is a top view of the assembly fixture of FIG. 5;

fig. 10 is a top view of the battery cell stack of fig. 4;

FIG. 11 is an enlarged view of a portion of the assembly fixture of FIG. 5;

FIG. 12 is an enlarged view of the spacing structure of FIG. 5;

fig. 13 to 17 are schematic views of respective steps of an assembling method for an assembling device of some embodiments of the present application, in which fig. 13 illustrates a step of assembling a plurality of rows of battery cell packs and an assembling tool, fig. 14 illustrates a step of assembling two assembling end plates, fig. 15 and 16 illustrate a step of assembling a frame structure, and fig. 17 illustrates a step of turning over the assembled battery cell packs and a case.

Description of reference numerals:

a vehicle 1000;

battery 100, controller 200, motor 300;

a box 10, a first part 11, a second part 12;

the battery comprises a battery monomer 20, a battery monomer group 30, an end cover 21, an electrode terminal 21a, a shell 22, an electric core component 23, a tab 23a, an end face 21b and a pole 21 a';

assembling a tool 5000;

the tool comprises a tool body 500, a preset direction L, a lateral direction K, a thickness direction S, a body surface 510, a groove 520, a first groove portion 521, a second groove portion 522, a third groove portion 523, a limiting structure 530, a limiting block portion 531, a first mounting portion 532, a through hole 533 and a second mounting portion 511;

the end plate 40, the frame structure 50, and the step structure 41 are assembled.

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 above figures 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), and "plural pieces" refers to two or more (including two).

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.

At present, the application of the power battery is more and more extensive from the development of market situation. The power battery is not only applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles and the like, and a plurality of fields such as military equipment and aerospace. With the continuous expansion of the application field of the power battery, the market demand is also continuously expanding.

To achieve a battery with a greater amount of stored charge, a greater number of cells may be assembled to create a larger cell stack and multiple rows of cell stacks assembled together to form the battery. How to ensure the assembly accuracy of each battery cell in the battery is a current technical difficulty.

In the related art, the battery cells are assembled into a frame in a manner of being loaded into a case. For example, glue is applied to the bottom of the box body, then after a battery cell group is formed by a plurality of battery cells, the battery cell group is pressurized and grabbed by a manipulator, and the battery cell group is positioned by taking a certain position on the box body as a mark point, so that the battery cell group is discharged into the box one by one under the control of a stroke.

The applicant notices that the existing assembly mode of the battery cell pack only uses the mark points on the box body for positioning, and has the problem of poor assembly precision. And because glue is between battery monomer group and box, after battery monomer group excessive pressure income case, battery monomer group can't take out (this is because battery monomer group is in pressurization pretension state and there is not enough space in the box for the manipulator to snatch battery monomer group), make the rubber coating area and the rubber coating quality of battery monomer group unable detection, thereby lead to the assembly precision of follow-up assembly part on the battery monomer to have certain problem.

In order to solve the problem of assembly accuracy in the related art, the applicant found that the assembly accuracy of the battery cell assembly can be ensured by designing an assembly tool for flip-chip mounting of the battery cells. Through set up the recess that is used for holding utmost point post on the frock body and make the free terminal surface of battery and the laminating of the surface of frock body to carry on spacingly and utilize the free shoulder of battery to fix a position the free utmost point post of battery of flip-chip on assembly fixture, thereby improve the free positioning accuracy of battery, improve the free assembly accuracy of battery. In addition, the single flip-chip assembly of battery can be convenient for carry out the rubber coating and be convenient for inspect the rubber coating area of the free bottom of battery to ensure the rubber coating quality, in order to avoid forming great utmost point post difference in height because of the thick difference of bottom of the box rubber coating glue, improve the yields of follow-up welding installation.

The assembly fixture disclosed by the embodiment of the application can be used for assembling the battery. The battery may be used in electric devices such as vehicles, ships, or aircrafts, but not limited thereto. The electric device can be, but is not limited to, a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, a battery car, an electric automobile, a ship, a spacecraft, and the like. The electric toy may include a stationary or mobile electric toy, such as a game machine, an electric car toy, an electric ship toy, an electric airplane toy, and the like, and the spacecraft may include an airplane, a rocket, a space shuttle, a spacecraft, and the like. The battery cell in the assembly battery system provided with the present disclosure can be used, and thus, the improvement of the assembly accuracy of the battery cell is facilitated.

For convenience of description, the following embodiments take an example in which a power consuming apparatus according to an embodiment of the present application is a vehicle 1000.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle 1000 according to some embodiments of the present disclosure. The vehicle 1000 may be a fuel automobile, a gas automobile, or a new energy automobile, and the new energy automobile may be a pure electric automobile, a hybrid electric automobile, or an extended range automobile, etc. The battery 100 is provided inside 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 serve as an operation power source of the vehicle 1000. The vehicle 1000 may further include a controller 200 and a motor 300, the controller 200 being configured to control the battery 100 to supply power to the motor 300, for example, for starting, navigation, and operational power requirements while the vehicle 1000 is traveling.

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

Referring to fig. 2, fig. 2 is an exploded view of a battery 100 according to some embodiments of the present disclosure. The battery 100 includes a case 10 and a battery cell 20, and the battery cell 20 is accommodated in the case 10. The case 10 is used to provide a receiving space for the battery cells 20, and the case 10 may have various structures. In some embodiments, the case 10 may include a first portion 11 and a second portion 12, the first portion 11 and the second portion 12 cover each other, and the first portion 11 and the second portion 12 together define a receiving space for receiving the battery cell 20. The second part 12 may be a hollow structure with one open end, the first part 11 may be a plate-shaped structure, and the first part 11 covers the open side of the second part 12, so that the first part 11 and the second part 12 jointly define a containing space; the first portion 11 and the second portion 12 may be both hollow structures with one side open, and the open side of the first portion 11 may cover the open side of the second portion 12. Of course, the case 10 formed by the first and second portions 11 and 12 may have various shapes, such as a cylinder, a rectangular parallelepiped, and the like.

In the battery 100, the number of the battery cells 20 may be multiple, and the multiple battery cells 20 may be connected in series or in parallel or in series-parallel, where in series-parallel refers to both series connection and parallel connection among the multiple battery cells 20. The plurality of battery cells 20 can be directly connected in series or in parallel or in series-parallel, and the whole formed by the plurality of battery cells 20 is accommodated in the box body 10; of course, the battery 100 may also be formed by first connecting a plurality of battery cells 20 in series, in parallel, or in series-parallel to form a battery cell group 30, and then connecting a plurality of battery cell groups 30 in series, in parallel, or in series-parallel to form a whole, and accommodating them in the case 10 to form the battery 100. The battery 100 may further include other structures, for example, the battery 100 may further include a bus member for achieving electrical connection between the plurality of battery cells 20.

Wherein each battery cell 20 may be a secondary battery or a primary battery; but is not limited to, a lithium sulfur battery, a sodium ion battery, or a magnesium ion battery. The battery cell 20 may be cylindrical, flat, rectangular parallelepiped, or other shape.

Referring to fig. 3, fig. 3 is an exploded schematic view of a battery cell 20 according to some embodiments of the present disclosure. The battery cell 20 refers to the smallest unit constituting the battery. Referring to fig. 3, the battery cell 20 includes an end cap 21, a housing 22, a battery cell assembly 23, and other functional components.

The end cap 21 refers to a member that covers an opening of the case 22 to isolate the internal environment of the battery cell 20 from the external environment. Without limitation, the shape of the end cap 21 may be adapted to the shape of the housing 22 to fit the housing 22. Alternatively, the end cap 21 may be made of a material (e.g., an aluminum alloy) having a certain hardness and strength, so that the end cap 21 is not easily deformed when being impacted, and the battery cell 20 may have a higher structural strength and improved safety. The end cap 21 may be provided with a functional member such as an electrode terminal 21a (hereinafter also referred to as a post) or the like. The electrode terminals 21a may be used to be electrically connected with the electric core assembly 23 for outputting or inputting electric power of the battery cells 20. Although both of the electrode terminals 21a are shown in fig. 3 to be disposed on the same surface of the end cap 21, it is understood that both of the electrode terminals 21a may be disposed on the surface of the end cap 21 and the surface of the case 22, respectively, and the present application is not limited thereto. In addition, the electrode terminal 21a may have a cylindrical shape, a rectangular parallelepiped shape, a semi-cylindrical shape, or other shapes. In some embodiments, the end cap 21 may further include a pressure relief mechanism for relieving the internal pressure when the internal pressure or temperature of the battery cell 20 reaches a threshold value. The material of the end cap 21 may also be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., which is not limited in this embodiment. In some embodiments, insulation may also be provided on the inside of the end cap 21, which may be used to isolate the electrical connection components within the housing 22 from the end cap 21 to reduce the risk of short circuits. Illustratively, the insulator may be plastic, rubber, or the like.

The housing 22 is an assembly for mating with the end cap 21 to form an internal environment of the battery cell 20, wherein the formed internal environment may be used to house the cell assembly 23, electrolyte, and other components. The housing 22 and the end cap 21 may be separate components, and an opening may be formed in the housing 22, and the opening may be covered by the end cap 21 to form the internal environment of the battery cell 20. Without limitation, the end cap 21 and the housing 22 may be integrated, and specifically, the end cap 21 and the housing 22 may form a common connecting surface before other components are inserted into the housing, and when it is necessary to enclose the inside of the housing 22, the end cap 21 covers the housing 22. The housing 22 may be a variety of shapes and sizes, such as rectangular parallelepiped, cylindrical, hexagonal prism, etc. Specifically, the shape of the housing 22 may be determined according to the specific shape and size of the electric core assembly 23. The material of the housing 22 may be various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., which is not limited in the embodiments of the present invention.

The cell assembly 23 is a component in the battery cell 100 where electrochemical reactions occur. One or more electrical core assemblies 23 may be contained within the housing 22. The core assembly 23 is mainly formed by winding or stacking a positive electrode sheet and a negative electrode sheet, and a separator is generally provided between the positive electrode sheet and the negative electrode sheet. The portions of the positive and negative electrode tabs having the active material constitute the main body portion of the core assembly, and the portions of the positive and negative electrode tabs having no active material each constitute the tab 23 a. The positive electrode tab and the negative electrode tab may be located at one end of the main body portion together or at both ends of the main body portion, respectively. During the charge and discharge of the battery, the positive and negative active materials react with the electrolyte, and the tab 23a is connected to the electrode terminal to form a current loop.

Referring to fig. 4, fig. 4 is a schematic view of a battery cell pack 30 according to some embodiments of the present disclosure. The battery cell group 30 is formed by arranging a plurality of battery cells 20 side by side in a predetermined direction L. A plurality of battery cell packs 30 are connected in series or in parallel or in series-parallel to form a whole, and are accommodated in the case 10 (shown in fig. 2) to form the battery 100. It should be noted here that although the shape of the electrode post 21 a' on the battery cell 20 is different from the shape of the electrode terminal 21a in fig. 3, other features of the two are substantially the same and will not be described in detail here.

Fig. 4 is a schematic view of a battery cell stack 30 according to some embodiments of the present application; FIG. 5 is a schematic view of an assembly tool 5000 according to some embodiments of the present application; fig. 6 is a schematic view of the battery cell pack 30 in fig. 4 and the assembly tool 5000 in fig. 5 assembled together. As shown in fig. 4, 5 and 6, the assembly tool 5000 may be used for assembling the battery 100 (as shown in fig. 1 and 2), the battery 100 may include a plurality of battery cells 20 arranged side by side along a preset direction L, and an end face 21b of each battery cell 20 is provided with a terminal 21 a'. The assembly fixture 5000 may include a fixture body 500. Be provided with recess 520 on the body surface 510 of frock body 500, recess 520 extends along preset direction L, and recess 520 is used for holding utmost point post 21 a', and body surface 510 is used for with the terminal surface laminating to the battery monomer of location.

The battery 100, the battery cell 20, and the electrode post 21 a' described herein are the same as the battery 100, the battery cell 20, and the electrode terminal 21a described above with reference to fig. 1 to 3, and thus, detailed description thereof will be omitted.

As shown in fig. 4, two poles 21 a' may be disposed on the same end surface 21b of the battery cell 20. In some other examples, the two poles 21 a' of the battery cell 20 may also be respectively disposed on different surfaces of the end surface 21b and the housing 22, and the application is not limited thereto. The two poles 21 a' of each cell 20 in the row of the cell group 30 are arranged to form two rows of poles.

The tool body 500 may be a plate-shaped structure or the like having a body surface 510 for attaching to an end surface of the battery cell 20. That is, the shape, flatness, and the like of the body surface 510 match the end faces of the battery cells 20. The groove 520 extends from the body surface 510 toward the interior of the tool body 500. In addition, the processing manner of the groove 520 may include carving, stamping, milling, and the like, but the present application is not limited thereto. The grooves 520 extend in a predetermined direction L, that is, the grooves 520 extend in the same direction as the arrangement direction of the battery cells 20, that is, the predetermined direction L. In the case where two poles 21a 'are provided on the same end face 21b of the battery cell 20, the groove 520 may accordingly comprise a first groove portion 521 and a second groove portion 522 parallel to the preset direction L for accommodating the two poles 21 a', or rather two columns of poles, respectively. In some other examples, in the case that two terminals 21a 'are disposed on the same end surface of the battery cell 20 or two terminals 21 a' are disposed on different surfaces, the groove 520 may also include only one groove portion for accommodating one terminal 21a 'or two terminals 21 a' at the same time. In some examples, the grooves 520 may have the same depth along the preset direction L, and may also have different depths, to which the present application is not limited.

The above embodiment can realize that the battery cell 20 is flipped on the tool body 500, the pole 21 a' of the battery cell 20 flipped on the tool body 500 is limited, and the shoulder of the battery cell 20 is utilized for positioning, so that the positioning accuracy of the battery cell 20 is improved, and the assembly accuracy of the battery cell 20 is improved. In addition, the flip-chip assembly of the battery cell 20 can be convenient for glue the bottom of the battery cell 20 and check the glue coating area of the bottom of the battery cell 20, so that the glue coating quality is ensured, the formation of a large height difference of the pole caused by different glue coating thicknesses at the bottom of the box body is avoided, and the yield of subsequent welding installation is improved.

According to some embodiments of the present application, as shown in fig. 5 and 6, the groove 520 is a through groove penetrating through both side surfaces of the tool body 500 in the preset direction L. That is, the groove 520 extends from one side surface of the tool body 500 to the other side surface in the preset direction L, i.e., extends over the entire width of the tool body 500 in the preset direction L. The above embodiment may facilitate the placement of the terminal post 21 a' of the battery cell 20 in the groove 520, thereby facilitating the flip-chip mounting of the battery cell 20 to improve the assembly quality of the battery cell 20.

In some other embodiments, the groove 520 may extend only a portion of the width of the tooling body 500.

According to some embodiments of the present application, as shown in fig. 7 and 8, the groove 520 has a depth h1 in the thickness direction of the tooling body 500, the depth h1 being greater than the height h2 of the post 21 a' extending from the end face, the thickness direction S being perpendicular to the body surface 510. When the depth h1 of the groove 520 is greater than the height h2 of the post 21a ', a certain gap exists between the bottom wall of the groove 520 and the top surface of the post 21 a'. In some examples, the depth h1 may be about 2mm to 10mm, typically 5mm to 8mm, greater than the height h 2. It should be understood herein that the above-described arrangement of dimensions is merely exemplary and may be set to any size as desired. Therefore, the contact between the pole 21 a' and the bottom wall of the groove 520 can be avoided, and the pole is prevented from being collided and abraded.

According to some embodiments of the present application, as shown in fig. 7, 8 and 9, the pole 21a ' may include two poles 21a ' spaced apart along the lateral direction K of the tool body 500, and the groove 520 includes a first groove portion 521 and a second groove portion 522 spaced apart along the lateral direction K, the first groove portion 521 and the second groove portion 522 being respectively configured to accommodate the two poles 21a ', and the lateral direction K being perpendicular to the preset direction L.

The first and second groove portions 521 and 522 may be parallel to the preset direction L so as to accommodate two columns of poles 21 a' of the battery cell group. One or both of the first and second groove portions 521 and 522 may have the same depth in the preset direction L, or different depths. The depths of the first and second groove portions 521 and 522 may be the same or different. A distance between the first groove portion 521 and the second groove portion 522 (e.g., a perpendicular bisector therebetween) is equal to a distance between two poles 21 a' (e.g., a perpendicular bisector therebetween).

The above embodiment can promote the limit of the pole 21 a' on the tool body 500, thereby further improving the assembling quality of the battery cell 20.

According to some embodiments of the present application, as shown in fig. 7, 8, a width w1 of at least one of the first and second groove portions 521, 522 in the lateral direction K is greater than a maximum dimension w2 of the pole 21 a' in the lateral direction K. The width directions of the first groove portion 521 and the second groove portion 522 (i.e., the direction in which the width w1 is located) coincide with the lateral direction K. The width w1 of the first groove portion 521 and/or the second groove portion 522 may be about 1mm to 5mm, typically 2mm to 3mm, larger than the maximum dimension w2 of the pole 21 a'. It should be understood herein that the above-described arrangement of dimensions is merely exemplary and may be set to any size as desired. The edge contact of utmost point post and recess portion can be avoided to above-mentioned embodiment to the wearing and tearing are collided with to the utmost point post of avoiding appearing.

According to some embodiments of the present application, as shown in fig. 7 and 8, the groove 520 may further include a third groove portion 523 located between the first groove portion 521 and the second groove portion 522, and a distance h3 between a bottom wall of the third groove portion 523 and the body surface 510 in the thickness direction S of the tool body 500 is in a range of 2mm to 3 mm. The above "distance" means a minimum distance. The distance h3 will affect the limit of the first and second groove parts 521 and 522 to the poles if it is too large, and will easily cause the part between the poles 21 a' to collide if it is too small.

By providing the third groove portion 523, it is possible to escape the components (e.g., the pressure relief mechanism, etc.) between the pole posts 21a ', preventing the collision and wear of the components between the pole posts 21 a'. Above size range can realize dodging the part between utmost point post 21a 'and colliding with wearing and tearing when, all have the lateral wall of the recess portion that corresponds to carry on spacingly in utmost point post 21 a's periphery both sides to promote utmost point post spacing on the frock body, further improve the free assembly quality of battery.

In some other embodiments, the distance h3 between the bottom wall of the third groove portion 523 and the body surface 510 in the thickness direction S may be set to any size as needed.

According to some embodiments of the present application, as shown in fig. 9 and 10, a plurality of grooves 520 are disposed on the surface 510 of the body, the plurality of grooves 520 are spaced along a lateral direction K of the tool body 500, the lateral direction K is perpendicular to the preset direction L, the battery includes a plurality of rows of battery cell groups 30, each row of battery cell group includes a plurality of battery cells 20 disposed side by side along the preset direction L, and the plurality of grooves 520 are respectively used for accommodating the plurality of rows of battery cell groups. The plurality of grooves 520 may be arranged at equal intervals or at unequal intervals along the lateral direction K to meet different arrangement requirements of the plurality of rows of the battery cell packs 30. The number of the plurality of grooves 520 may be greater than or equal to the number of rows of the multi-row battery cell stack. From this, can realize that the simultaneous flip-chip of multirow module is gone into the case. Compared with the mode of arranging and positively loading the battery monomer groups into the box one by one in the related art, the assembly tool 5000 with the characteristics can realize that all the battery monomer groups needing to be loaded into the box are integrally shaped and inversely loaded on the assembly tool 5000, so that the risk that the whole box of the battery monomer groups is scrapped if one row of the battery monomer groups is abnormally loaded into the box is avoided, and the assembly efficiency and the quality of the battery monomer 20 are effectively improved.

According to some embodiments of the present application, as shown in fig. 9, 11 and 12, the assembly tool 5000 further includes a limiting structure 530, and the limiting structure 530 is parallel to the predetermined direction L and is located on at least one side of the groove 520.

The position limiting structure 530 is used for limiting the position of the battery cell 20 in the lateral direction K. In addition, since the limiting structure 530 has a certain width in the lateral direction K, a certain gap may be formed between the battery cell groups on both sides of the limiting structure 530. In some examples, the width of the limiting structure 530 in the lateral direction K is not preferably set to be too large to prevent the battery cells 20 from being dislocated when the battery cell group 30 is pressurized, and may be generally set to be in a range of about 1mm to 2mm or set according to the gap requirement between the battery cell groups 30. In addition, the protruding height of the position-limiting structure 530 from the body surface 510 should not be set too large to prevent the assembling tool 5000 from being taken out, and should not be set too small to prevent the position-limiting effect from being poor, and may be generally set to be in the range of about 3mm to 4 mm. It should be understood herein that the above-described arrangement of dimensions is merely exemplary and may be set to any size as desired. The stopper 530 may be integrally formed with the tool body 500, or both may be separate components. When the limiting structure 530 and the tool body 500 are independent components, they may be detachably connected, for example, bolted connection.

The above embodiment can limit the position of the battery cells 20 on the tool body 500, so as to avoid the misalignment of the battery cells 20 during the pressurization process, and promote the positioning of the battery cells 20, and can realize the gap arrangement between the battery cells 20 in different rows.

According to some embodiments of the present disclosure, as shown in fig. 9, the assembly tool 5000 includes a plurality of limiting structures 530 and a plurality of grooves 520, and each limiting structure 530 is disposed between two adjacent grooves 520. That is, the number of the limiting structures 530 is one more than the number of the grooves 520, and corresponding limiting structures 530 are provided at both sides of each groove 520, so that each row of the battery cell packs 30 has a respective groove 520 and the limiting structures 530 for positioning. Through the embodiment, each row of battery monomer groups can be independently positioned and installed, so that the accumulation of assembly tolerance is avoided, and the installation quality of components subsequently installed on the battery monomers is ensured.

According to some embodiments of the present application, as shown in fig. 9 and 10, a distance w3 between adjacent surfaces of two adjacent limiting structures 530 is equal to a width w4 of the battery cell 20 along a lateral direction K of the tool body 500, the lateral direction K being perpendicular to the preset direction L. The above-mentioned "distance" means the shortest distance. The above "equal to" includes completely equal or slightly greater.

The above embodiment can facilitate placing the battery cell 20 between the adjacent limiting structures 530 to avoid interference between the battery cell 20 and the limiting structures 530, and can also avoid that the gap between the limiting structures 530 and the battery cell 20 is not too large, thereby avoiding the dislocation of the battery cell 20 during the pressurization process of the battery cell group 30.

In some other embodiments, the distance w3 between the adjacent surfaces of two adjacent limiting structures 530 may be greater than the width w4 of the battery cell 20 in the lateral direction K, which is not limited herein.

According to some embodiments of the present application, as shown in fig. 9 and 10, the body surface 510 includes a surface portion located between the adjacent limiting structure 530 and the groove 520, the end surface 21b includes an end surface portion located between a side surface of the adjacent battery cell 20 in the lateral direction and the pole 21 a', and a dimension w5 of the surface portion in the lateral direction K is smaller than a minimum distance w6 of the end surface portion in the lateral direction K. The setting is such that the pole 21 a' does not contact the side surface of the groove 520 in the lateral direction K when the battery cell 20 is flip-mounted on the tool body 500.

That is, the terminal post 21a 'may not contact the side surface of the groove 520 in the lateral direction K when the battery cell 20 is flipped over the tool body 500 by setting the above-described dimension w5 (e.g., the maximum dimension of the surface portion in the lateral direction K) corresponding to each of the position restricting structures to be smaller than the minimum distance w6 between the side surface of the battery cell 20 in the lateral direction K and the opposite terminal post 21 a' (i.e., the distance of the terminal post shoulder).

The embodiment can avoid the contact between the pole 21a 'and the periphery of the groove 520 when the battery cell abuts against the limiting structure, so that the collision and abrasion of the pole 21 a' are avoided.

In some other examples, for each groove 520, the aforementioned dimension w5 on one side of the groove 520 can be set to be less than the distance w6 of the pole shoulder, while the aforementioned dimension w5 on the other side of the groove 520 can be set to be greater than or equal to the distance w6 of the pole shoulder.

According to some embodiments of the present application, as shown in fig. 11 and 12, the limiting structure 530 includes a first mounting portion 532, the body surface 510 is further provided with a second mounting portion 511, and the first mounting portion 532 is detachably disposed on the second mounting portion 511.

The stopper structure 530 may further include stopper portions 531, the stopper portions 531 serving to define the positions of the battery cell stacks 30 and gaps between the battery cell stacks 30. The first mounting portion 532 and the stopper portion 531 may be integrally formed or may be separate components. The stopper portion 531 may be disposed at a middle portion of the first mounting portion 532 in the lateral direction K, and may also be disposed at one side of the first mounting portion 532, to which the present application is not limited. Further, the first mounting portion 532 may extend from one end to the other end of the stopper portion 531 in the preset direction L, i.e., extend in the entire lateral direction of the stopper portion 531 in the preset direction L, or may extend over a part of the length of the stopper portion 531 in the preset direction L.

In some examples, the first mounting portion 532 may be removably disposed on the second mounting portion 511 by plugging, bolting, or the like. For example, the first mounting portion 532 may be a flat plate structure, the second mounting portion 511 may be a recessed structure, and the first mounting portion 532 may be detachably coupled by being inserted into the second mounting portion 511. For another example, as shown in fig. 11 and 12, the first mounting portion 532 is provided with a through hole 533, and the stopper structure 530 is detachably connected to the second mounting portion 511 by a fastener passing through the through hole. The via 533 may include one via 533 or a plurality of vias 533. In the case where the through-holes 533 include a plurality of through-holes 533, the plurality of through-holes 533 may be equally or unequally distributed along the preset direction L on the first mounting part 532. In some examples, when the stopper portion 531 is disposed at the middle of the first mounting portion 532 in the lateral direction K, the through-holes 533 at both sides of the stopper portion 531 may be symmetrically distributed with each other. The fasteners may include bolts or the like. Thus, it is convenient to replace different limiting structures 530, so as to adjust the gap between the battery cell packs 30 to meet different gap requirements between the battery cell packs 30.

According to some embodiments of the present application, as shown in fig. 11 and 12, the second mounting portion 511 is a recessed structure for receiving the first mounting portion 532. In some examples, the first mounting portion 532 is inserted within the recessed structure by an interference fit. In some other examples, as shown in fig. 11 and 12, the first mounting portion 532 is provided with a through hole 533, and the stopper 530 is detachably connected to the bottom wall of the recessed structure by a fastener passing through the through hole. The recessed features extend from the body surface 510 toward the interior of the tool body 500. The processing manner of the concave structure may include carving, stamping, milling, and the like, but the application is not limited thereto. The second mounting portion is configured to be a recessed structure, so that the first mounting portion 532 of the limiting structure 530 can be prevented from interfering with the positioning of the battery cell 20 on the tool body 500.

According to some embodiments of the present application, as shown in fig. 9 and 10, the length C1 of the position limiting structure 530 in the preset direction L is less than the length C2 of the battery in the preset direction L. Specifically, the length C1 of the limiting structure 530 (specifically, the limiting block structure 531) along the preset direction L is smaller than the length C2 of the battery cell group 30 along the preset direction L. It is thereby possible to avoid interference of the assembly end plates 40 with the stopper structure 530 when the assembly end plates 40 (shown in fig. 14) on both sides of the battery cell stack 30 are pressurized, thereby affecting further pressurization of the battery cell stack 30.

According to some embodiments of the present disclosure, a distance between a side surface of the position limiting structure 530 in the predetermined direction L and an end side of the tool body 500 opposite to the side surface is approximately in a range of 6mm to 10 mm. The "distance" herein refers to the shortest distance. Therefore, the assembly end plates 40 can be prevented from interfering with the limiting structures 530 when the assembly end plates 40 on the two sides of the battery cell group are pressurized, so that further pressurization of the battery cell group 30 is influenced.

According to some embodiments of the present application, the stopper structure 530 may be made of a flexible material. The flexible material may, for example, comprise polyvinyl alcohol (PVA), Polyester (PET), and the like. Thereby preventing the tool body 500 from damaging the surface of the battery cell 20.

According to some embodiments of the present application, an insulating layer (not shown) may be disposed on the bottom wall of the groove 520. The insulating layer may be made of, for example, fiber, rubber, plastic, glass, ceramic, etc. In some examples, the insulating layer may be laid on the entire bottom wall of the groove 520, or may be provided only on a portion of the bottom wall of the groove 520 opposite to the pole 21 a'. Thereby, the contact between the pole 21 a' and the bottom wall of the groove 520 to cause short circuit can be avoided. Additionally, an insulating layer may also be disposed on the periphery of the groove 520.

According to some embodiments of the present application, as shown in fig. 4 to 12, the assembly tool 5000 includes a tool body 500 and a plurality of limiting structures 530.

The tool body 500 has a body surface 510 provided with a plurality of grooves 520 spaced apart from each other in the lateral direction K. The body surface 510 is adapted to engage the end surface 21b to position the battery cell 20. The plurality of grooves 520 extend in the predetermined direction L and are respectively used for accommodating a plurality of rows of the battery cell sets 30. The groove 520 has a depth in a direction perpendicular to the body surface 510 that is greater than the height of the post 21 a' extending from the end surface 21 b. The groove 520 is a through groove and includes a first groove portion 521, a second groove portion 522, and a third groove portion 523 located between the first groove portion 521 and the second groove portion 522. The first groove portion 521 and the second groove portion 522 are used to accommodate the two poles 21 a', respectively. The width of either one of the first groove portion 521 and the second groove portion 522 in the lateral direction K is larger than the maximum dimension of the pole 21 a' in the lateral direction K.

The plurality of retention features 530 are spaced apart on the body surface 510 such that each groove 520 is positioned between a respective two adjacent retention features 530 of the plurality of retention features 530. For each of the stopper structures 530, the body surface 510 includes a surface portion between the stopper structure 530 and the adjacent groove 520, and a dimension w5 of the surface portion in the lateral direction K is set such that the pole 21 a' is not in contact with a side surface of the groove 520 in the lateral direction K when the battery cell 20 is flipped over the tool body 500. The stopper structure 530 includes a first mounting portion 532 and a stopper portion 531, the stopper portion 531 being disposed perpendicular to a surface of the first mounting portion 532, and a second mounting portion 511 for receiving the first mounting portion 532 is further disposed on the body surface 510. The first mounting portion 532 is provided with a through hole 533, and the stopper structure 530 is detachably coupled to the bottom wall of the second mounting portion 511 by a fastener passing through the through hole 533. The length of the position-limiting structure 530 along the predetermined direction L is smaller than the length of the battery along the predetermined direction L.

Fig. 13-17 are schematic illustrations of various steps of an assembly method for an assembly device of some embodiments of the present application. As shown in fig. 13 to 17, the assembling apparatus may include an assembling tool 5000 for inversely mounting a plurality of battery cells 20 arranged side by side in the preset direction L.

In this context, "flip" means that the end face of the battery cell 20 provided with the terminal is abutted against the surface of the body of the assembly tool 5000, and the bottom face of the battery cell 20 opposite to the end face faces upward away from the surface of the body of the assembly tool 5000. The method for flipping multiple battery cells 20 using the assembly tool 5000 is described in detail below with reference to fig. 4 to 6 and 13 to 17.

As shown in fig. 14 to 17, the battery may include two assembly end plates 40, side surfaces of the two assembly end plates 40 respectively abut against two side surfaces of the battery cell group 30 in the preset direction L, and a bottom end of the assembly end plate 40 abuts against a body surface of the assembly tool 1000. A stepped structure 41 may be formed at the bottom end of the assembly end plate 40 for matching with the end side of the tool body 500, thereby facilitating the abutment of the assembly end plate 40 against the body surface of the tool body 500.

As shown in fig. 15 to 17, the battery may further include a frame structure 50 connected between the two assembly end plates 40, the frame structure 50 surrounding both side surfaces of the battery cell 20 in the lateral direction K and a bottom surface opposite to the end surface of the battery cell 20. The frame structure 50 may be, for example, a U-shaped frame. The two mounting end plates 40 and the frame structure are sequentially joined to each other to form a case for accommodating the battery cell 20, for example, by welding (e.g., through welding), flow drilling screws FDS, riveting (e.g., self-piercing riveting FDS), and the like. The frame structure 50 is connected to the battery cell 20, for example, by glue.

The features of the assembly fixture 5000, the battery, the single battery 20, the terminal post, the groove and the like are the same as those of the assembly fixture 5000, the battery 100, the single battery 20, the terminal post 21 a', the groove 530 and the like in fig. 1 to 12, respectively, and detailed description thereof is omitted. The above embodiment can realize that the battery cell 20 is flipped on the tool body 500, the pole 21 a' of the battery cell 20 flipped on the tool body 500 is limited, and the shoulder of the battery cell 20 is utilized for positioning, so that the positioning accuracy of the battery cell 20 is improved, and the assembly accuracy of the battery cell 20 is improved. In addition, the flip-chip assembly of the battery cell 20 can be convenient for glue the bottom of the battery cell 20 and check the glue coating area of the bottom of the battery cell 20 (for example, before the box is not turned over, the frame structure is taken away), so that the glue coating quality is ensured, the formation of a large height difference of the pole due to the fact that the glue coating thickness of the bottom of the box is different is avoided, and the yield of subsequent welding installation is improved.

How the above-described mounting device flips a plurality of battery cells 20 arranged side by side in the preset direction L will be described in detail with reference to fig. 4 to 6 and 13 to 17.

First, a plurality of battery cells 20 and a cushion (not shown) are arranged side by side in a predetermined direction L to form a plurality of rows of battery cell groups 30. Then, as shown in fig. 5 and 13, each row of the battery cell groups 30 in the multiple rows of the battery cell groups 30 is sequentially placed between the adjacent limiting structures 530, the terminal posts 21 a' are placed in the corresponding grooves 520 of the multiple grooves 520 of the tool body 500, and the end surfaces 21b of the battery cells 20 are attached to the body surface 510 of the tool body 500, so that the multiple rows of the battery cell groups 30 are integrally shaped and flipped on the tool body 500. Next, as shown in fig. 14, the bottom ends of the two assembly end plates 40 are abutted against the body surface 510 of the tool body 500, and the side surfaces of the two assembly end plates 40 are respectively abutted against the two side surfaces of the battery cell group 30 in the preset direction L. Next, one of the fitting end plates 40 is used as a fixed end plate, and the other fitting end plate 40 is used as a movable end plate, and the movable end plate is pressurized until the length of the battery cell group 30 in the preset direction L satisfies the design dimension, as shown in fig. 15. Next, the battery cell groups 30 on the assembly tool 5000 may be sorted according to design specifications to change the positions of the respective rows of the battery cell groups 30. After the assembly of the two assembly end plates 40 is completed, the inner surface of the frame structure 50 is glued and reversed on the bottom surface and both side surfaces in the lateral direction K of the multiple rows of the battery cell groups 30, and is appropriately pressed, as shown in fig. 16. Next, the frame structure 50 is pressed and left to stand by a tool such as a jig. After a certain period of time, the entire case body is turned over using the robot to turn the assembly fixture 5000 to the top, and then the assembly fixture 5000 is withdrawn, thereby completing the operation of boxing the battery cell group 30, as shown in fig. 17.

In some examples, when the battery cell pack 30 is placed on the tool body 500, one side of the battery cell pack 30 in the preset direction L should be flush with or slightly protrude from an opposite side of the limiting structure 530 so as to subsequently press the assembly end plate 40 abutting against the battery cell pack 30.

In some examples, in the case that the glue area on the bottom surface of the battery cell 20 needs to be detected, the frame structure 50 may be pulled away before the case is turned over, so as to observe the glue pressing condition on the bottom of the battery cell 20.

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, it should be understood by those of ordinary skill in the art 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 (17)

1. The utility model provides an assembly fixture for the assembly battery, the battery includes a plurality of battery monomer that set up side by side along predetermineeing the direction, be provided with utmost point post on the free terminal surface of battery, its characterized in that, assembly fixture includes:

the tool comprises a tool body, wherein a groove is formed in the surface of the tool body and extends in the preset direction, the groove is used for accommodating the pole, and the surface of the tool body is used for being attached to the end face to position the battery monomer.

2. The assembly fixture according to claim 1, wherein the groove is a through groove, and the through groove penetrates through two side faces of the fixture body in the preset direction.

3. The assembly tool according to claim 1, wherein the depth of the groove in the thickness direction of the tool body is larger than the height of the pole extending from the end face, and the thickness direction is perpendicular to the surface of the tool body.

4. The assembly fixture according to claim 1, wherein the pole comprises two poles arranged at intervals in a lateral direction of the fixture body, and the groove comprises a first groove portion and a second groove portion arranged at intervals in the lateral direction, the first groove portion and the second groove portion are respectively used for accommodating the two poles, and the lateral direction is perpendicular to the preset direction.

5. The assembly tool according to claim 4, wherein the width of at least one of the first groove portion and the second groove portion in the lateral direction is larger than the maximum dimension of the pole in the lateral direction.

6. The assembly fixture of claim 4, wherein the groove further includes a third groove portion located between the first groove portion and the second groove portion, and a distance between a bottom wall of the third groove portion and the body surface in a thickness direction of the fixture body is in a range of 2mm to 3 mm.

7. The assembly fixture according to any one of claims 1 to 6, wherein a plurality of grooves are formed in the surface of the fixture body, the grooves are arranged at intervals along a lateral direction of the fixture body, the lateral direction is perpendicular to the preset direction, the battery comprises a plurality of rows of battery cell groups, each row of battery cell group comprises a plurality of battery cells arranged side by side along the preset direction, and the grooves are used for accommodating the plurality of rows of battery cell groups respectively.

8. The assembly fixture according to any one of claims 1 to 6, further comprising a limiting structure, wherein the limiting structure is parallel to the preset direction and located on at least one side of the groove.

9. The assembly fixture according to claim 8, wherein the assembly fixture comprises a plurality of limiting structures and a plurality of grooves, and each limiting structure is arranged between two adjacent grooves.

10. The assembly fixture according to claim 9, wherein a distance between adjacent surfaces of two adjacent limiting structures is equal to a width of the battery cell in a lateral direction of the fixture body, and the lateral direction is perpendicular to the preset direction.

11. The assembly tooling of claim 10, wherein the surface of the body includes a surface portion located between the adjacent limiting structure and the groove, the end surface includes an end surface portion located between a side surface of the adjacent battery cell in the lateral direction and the terminal, and a dimension of the surface portion in the lateral direction is smaller than a minimum distance of the end surface portion in the lateral direction.

12. The assembly tool according to claim 8, wherein the limiting structure comprises a first mounting portion, a second mounting portion is further arranged on the surface of the body, and the first mounting portion is detachably arranged on the second mounting portion.

13. The assembly tool according to claim 12, wherein the second mounting portion is a recessed structure and is used for being plugged with the first mounting portion.

14. The assembly tooling of claim 8, wherein the length of the limiting structure along the preset direction is less than the length of the battery along the preset direction.

15. The assembly tooling of claim 8, wherein the limit structure is made of a flexible material.

16. The assembly tooling of any one of claims 1 to 6, wherein an insulating layer is disposed on the bottom wall of the groove.

17. An assembly device, comprising:

the assembly tool according to any one of claims 1 to 16, which is used for inversely installing a plurality of battery cells arranged side by side along a preset direction.

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