CN117096415B - Pressurizing device, system and method for replacing pressing block for battery module - Google Patents

Pressurizing device, system and method for replacing pressing block for battery module Download PDF

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Publication number
CN117096415B
CN117096415B CN202311350713.6A CN202311350713A CN117096415B CN 117096415 B CN117096415 B CN 117096415B CN 202311350713 A CN202311350713 A CN 202311350713A CN 117096415 B CN117096415 B CN 117096415B
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CN
China
Prior art keywords
press block
pin
latch
battery module
connector
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Active
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CN202311350713.6A
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Chinese (zh)
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CN117096415A (en
Inventor
吴凯
龙望
俞丁山
龚雪清
陈蕃科
罗磊
刘德仁
董近
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Contemporary Amperex Technology Co Ltd
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Contemporary Amperex Technology Co Ltd
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Priority to CN202311350713.6A priority Critical patent/CN117096415B/en
Publication of CN117096415A publication Critical patent/CN117096415A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0481—Compression means other than compression means for stacks of electrodes and separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0404—Machines for assembling batteries

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The application provides a pressurizing device, a pressurizing system and a pressurizing block replacing method for a battery module, and belongs to the technical field of battery manufacturing. The pressurizing device for the battery module includes: pressurizing machine; a pressing block provided with a first bolt hole; the pressing block connecting piece is used for connecting the pressurizing machine and the pressing block and is provided with a second bolt hole; and a latch mechanism, wherein at least a portion of the latch mechanism is insertable into the first and second latch holes to fix a relative position between the press block and the press block connector and removable from the first latch hole to allow movement of the press block relative to the press block connector.

Description

Pressurizing device, system and method for replacing pressing block for battery module
Technical Field
The present application relates to the field of battery manufacturing technology, and in particular, to a pressurizing device for a battery module, a pressurizing system for a battery module, and a method for replacing a pressing block.
Background
Energy conservation and emission reduction are key to sustainable development of the automobile industry, and electric vehicles become an important component of sustainable development of the automobile industry due to the energy conservation and environmental protection advantages of the electric vehicles. For electric vehicles, battery technology is an important factor in the development of the electric vehicles.
In the battery manufacturing process, the manufactured battery module is assembled into a case to obtain a battery. In general, the size of the battery module in at least one direction is greater than the size of the case to be mounted, and therefore, during the assembly of the battery module into the case, it is necessary to apply pressure to the battery module such that the size of the battery module in at least one direction is compressed, so that the compressed battery module can be smoothly mounted in the corresponding case.
For this, the battery module may be pressurized by a pressurizing system to compress the size of the battery module. When pressurizing for battery modules of different types or different sizes, the pressing blocks in the pressurizing system need to be replaced to adapt to different battery modules. In general, in order to provide a large pressurizing pressure to the battery module, the press block used is heavy, and thus the process of replacing the press block consumes a lot of manpower and time, thereby reducing the overall production efficiency of the battery.
Disclosure of Invention
The present application aims to solve at least one of the technical problems existing in the background art. To this end, it is an object of the present application to provide a pressurizing device for a battery module, a pressurizing system for a battery module, and a method of replacing a press block to improve efficiency of replacing the press block in the pressurizing system.
An embodiment of a first aspect of the present application provides a pressurizing device for a battery module, including: pressurizing machine; a pressing block provided with a first bolt hole; the pressing block connecting piece is used for connecting the pressurizing machine and the pressing block and is provided with a second bolt hole; and a latch mechanism, wherein at least a portion of the latch mechanism is insertable into the first and second latch holes to fix a relative position between the press block and the press block connector and removable from the first latch hole to allow movement of the press block relative to the press block connector.
In the technical scheme of this application embodiment, through bolt mechanism and the bolt hole of setting in briquetting and briquetting connecting piece respectively, can realize the quick fixed and quick dismantlement between briquetting and the briquetting connecting piece fixed to promote the efficiency of changing the briquetting in the pressurized system.
In some embodiments, the press block may include a first feature and the press block connector includes a second feature that is engageable with the first feature such that when the first feature is engaged with the second feature, a relative position between the press block and the press block connector is locked in at least one degree of freedom. Features provided on the press block and the press block connector, respectively, that are capable of cooperating with each other allow locking the relative position between the press block and the press block connector in at least one degree of freedom, thereby positioning the press block.
In some embodiments, the first feature may comprise a first wedge groove and the second feature may comprise a second wedge groove capable of mating with the first wedge groove, wherein movement between the press block and the press block connector in at least one direction and rotation about the at least one direction is locked when the first wedge groove mates with the second wedge groove. The wedge grooves which are respectively arranged on the pressing block and the pressing block connecting piece and can be matched with each other can form a pair lock, so that the pressing block is coarsely positioned and is prevented from falling from the pressing block connecting piece.
In some embodiments, the first feature may comprise one of a pin and a pin hole, and the second feature may comprise the other of the pin and the pin hole, wherein movement between the press block and the press block connector in at least one direction and rotation about the at least one direction is locked when the pin and the pin hole are mated. Through pin and pinhole, can realize the quick location between briquetting and the briquetting connecting piece.
In some embodiments, the dimension of at least one cross-section of the pin bore along the first direction may be greater than the dimension of any cross-section of the pin along a second direction corresponding to the first direction. Therefore, when the pin is inserted into the pin hole, a certain deviation is allowed to exist between the relative positions of the pin and the pin hole, and the pin hole are not required to be completely aligned, so that a certain error is allowed when the pressing block is placed, and the efficiency of changing the pressing block is further improved.
In some embodiments, the pin may include a tapered end. The tapered end facilitates smooth insertion of the pin into the corresponding pin bore.
In some embodiments, the latch mechanism may include a latch, at least a portion of which is capable of passing through the second latch hole and inserting into the first latch hole, thereby fixing the relative position between the press block and the press block connector, and at least a portion of which is capable of being removed from the first latch hole to allow movement of the press block relative to the press block connector. Therefore, the main body of the bolt mechanism can be arranged on one side of the pressing block connecting piece, and the pressing block can be quickly fixed in a mode that the bolt penetrates through the pressing block connecting piece and is inserted into the pressing block, so that the structure is simple.
In some embodiments, the pressurizing device may further include a bushing disposed in the second pin bore through which at least a portion of the pin is able to pass via the bushing. Therefore, friction between the bolt and the second bolt hole can be reduced, so that the insertion and extraction of the bolt are smooth.
In some embodiments, the latch mechanism may comprise a pneumatic latch mechanism. The pneumatic plug pin mechanism can provide a large insertion force at a low cost and can always provide stable pressure during the pressurizing of the battery module by the pressurizing device, so that the pressing block is prevented from falling undesirably.
In some embodiments, the first latch aperture may be a wedge-shaped latch aperture and at least a portion of the latch mechanism may include a wedge-shaped end. The wedge-shaped bolt hole and the wedge-shaped bolt end are favorable for the bolt to be smoothly inserted into the bolt hole, and after the bolt is inserted into the bolt hole, a relatively stable contact surface can be formed between wedge-shaped surfaces of the wedge-shaped bolt hole and the wedge-shaped bolt end, so that the shaking of the pressing block is reduced.
In some embodiments, the surface of the pressing block for contacting the battery module may include a non-metallic material. Therefore, the abrasion of the pressing block to the surface of the battery can be reduced, and the battery module is protected.
In some embodiments, the press block may include a detachable non-metal gasket for contacting the battery module. Thus, the nonmetallic gasket can be replaced.
Embodiments of the second aspect of the present application provide a pressurizing system for a battery module, comprising a pressurizing device according to embodiments of the first aspect of the present application; and the pressing block clamping mechanism is used for clamping the pressing block to move. The pressing blocks are clamped through the pressing block clamping mechanism, automatic replacement of the pressing blocks can be achieved, and accordingly the efficiency of changing the pressing blocks is further improved.
In some embodiments, the press block clamping mechanism may include a clamping jaw and a clamping pin disposed on the clamping jaw, and the press block may include a recess allowing the clamping jaw to enter and a clamping pin hole allowing the clamping pin to be inserted, the clamping pin hole being disposed on a sidewall of the recess. The recess on the briquetting has reduced briquetting self weight on the one hand, and on the other hand can provide the space that stretches into wherein for the clamping jaw, after the centre gripping pin on the clamping jaw inserts in the centre gripping pinhole on the recess lateral wall, can realize the relative fixation between clamping jaw and the briquetting.
Embodiments of a third aspect of the present application provide a method of replacing a compact with a compression system of embodiments of the second aspect of the present application, comprising: removing the part of the latch mechanism inserted into the latch hole of the first pressing block from the latch hole of the first pressing block; clamping the first press block by using a press block clamping mechanism to move so as to separate the first press block from the press block connecting piece; clamping the second pressing block by using a pressing block clamping mechanism to move to a position where a bolt hole of the second pressing block is aligned with a bolt hole of the pressing block connecting piece; and inserting at least a portion of the latch mechanism into the latch hole of the press block connector and the latch hole of the second press block to fix the relative position between the second press block and the press block connector. Therefore, on the basis of realizing quick fixation and quick removal fixation between the pressing block and the pressing block connecting piece, the efficiency of replacing the pressing block in the pressurizing system is improved.
The foregoing description is only an overview of the technical solutions of the present application, and may be implemented according to the content of the specification in order to make the technical means of the present application more clearly understood, and in order to make the above-mentioned and other objects, features and advantages of the present application more clearly understood, the following detailed description of the present application will be given.
Drawings
In the drawings, the same reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily drawn to scale. It is appreciated that these drawings depict only some embodiments according to the disclosure and are not therefore to be considered limiting of its scope.
Fig. 1 to 3 are schematic views illustrating different angles of a pressurizing device for a battery module according to some embodiments of the present application;
fig. 4 to 5 are schematic views of structures of different angles of a pressing block of a pressing device for a battery module according to some embodiments of the present application;
fig. 6 is a schematic structural view of a press block connector of a pressurizing device for a battery module according to some embodiments of the present application;
fig. 7 is a cross-sectional view of a press block of the pressurizing device for a battery module of fig. 5 according to some embodiments of the present application;
Fig. 8 is a sectional view of a pressurizing device for a battery module of fig. 3 according to some embodiments of the present application;
fig. 9 is another cross-sectional view of the pressurizing device for the battery module of fig. 3 according to some embodiments of the present application;
fig. 10 is a cross-sectional view of pins and pin holes of a pressurizing device for a battery module according to some embodiments of the present application;
fig. 11 is a partial enlarged view of a pin portion of a pressurizing device for a battery module according to some embodiments of the present application;
fig. 12 is a schematic structural view of a pressurizing system for a battery module according to some embodiments of the present application;
fig. 13 is a schematic view of a press block clamping mechanism of a press block clamping system for a battery module according to some embodiments of the present application;
fig. 14 is a schematic view of the jaws of a press block clamping mechanism for a pressurization system of a battery module according to some embodiments of the present application;
fig. 15 is another cross-sectional view of a press block of the pressurizing device for a battery module of fig. 5 according to some embodiments of the present application; and is also provided with
FIG. 16 is a flow chart of a method of replacing a compact with a pressurization system according to some embodiments of the present application.
Description of the reference numerals
100: a pressurizing device for the battery module;
110: pressurizing machine;
120: briquetting;
121: a first pin hole;
122: a first wedge-shaped groove;
123: a pin hole;
124: a groove;
125: a clamping pin hole;
130: a press block connecting piece;
131: a second pin hole;
132: a second wedge-shaped groove;
133: a pin;
140: a latch mechanism;
141: a plug pin;
150: a bushing;
200: a pressurizing system for the battery module;
210: a briquetting clamping mechanism;
211: a clamping jaw;
212: clamping pins;
310: a slide rail;
410: a lifting mechanism;
510: and (3) a transferring table.
Detailed Description
Embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical solutions of the present application, and thus are only examples, and are not intended to limit the scope of protection of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions.
In the description of the embodiments of the present application, the technical terms "first," "second," etc. are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, which means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are 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 sheets" refers to two or more (including two).
In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the embodiments of the present application and for simplifying the description, rather than indicating or implying that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of the present application.
In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.
As described above, in the battery manufacturing process, when pressurizing for different types or sizes of battery modules to be assembled into a case, it may be necessary to replace the press block in the pressurizing system to adapt to different battery modules.
In the related art, the pressing block may be fixed in the pressurizing device in a screw fixing manner. However, when the press block needs to be replaced, the screw needs to be detached from the pressurizing device to unlock the press block, and the process of detaching the screw usually takes a long time and requires manpower to complete, and the large weight and volume of the press block itself may cause the replacement process to further take manpower and time. In addition, because the briquetting weight is great, probably constitutes the threat to operating personnel's safety in the dismouting process.
In view of the above, embodiments of the present application provide a pressurizing device for a battery module, a pressurizing system for a battery module, and a method of replacing a press block. The pressurizing device includes: the device comprises a pressurizing machine, a pressing block connecting piece and a bolt mechanism. Wherein, briquetting and briquetting connecting piece are provided with first bolt hole and second bolt hole respectively, and at least a portion of bolt mechanism can insert first bolt hole and second bolt hole to fixed the relative position between briquetting and the briquetting connecting piece, and can shift out in the first bolt hole, in order to allow the briquetting to move for the briquetting connecting piece. Through bolt mechanism and the bolt hole of setting up respectively in briquetting and briquetting connecting piece, can realize the quick fixed and quick dismantlement between briquetting and the briquetting connecting piece and fix to promote the efficiency of changing the briquetting in the pressurized system.
The embodiment of the application provides a pressurizing device for a battery module. Fig. 1 to 3 are schematic views illustrating different angles of a pressurizing device for a battery module according to some embodiments of the present application; fig. 4 to 5 are schematic views of structures of different angles of a pressing block of a pressing device for a battery module according to some embodiments of the present application; fig. 6 is a schematic structural view of a press block connector of a pressurizing device for a battery module according to some embodiments of the present application; fig. 7 is a cross-sectional view of a press block of the pressurizing device for a battery module of fig. 5 according to some embodiments of the present application; and fig. 8 is a sectional view of a pressurizing device for a battery module in fig. 3 according to some embodiments of the present application.
First, referring to fig. 1 to 3, a pressurizing device 100 for a battery module includes: the press 110, the press block 120, the press block connector 130 and the latch mechanism 140. The press block connector 130 is used to connect the press 110 and the press block 120.
With further reference to fig. 4 to 5, the shape of the illustrated press block 120 may be set according to the size and shape of the battery module, for example. The discontinuous surface located above in fig. 5 may be a surface of the pressing block 120 for contacting the battery module, and the plurality of grooves located thereon may be used to receive the protruding portions on the battery module. With further reference to fig. 7, fig. 7 shows a cross-sectional view of section A-A' of fig. 5, and it can be seen from fig. 7 that the press block 120 is provided with first bolt holes 121. Furthermore, as can be seen from fig. 6, the press block connection 130 is provided with a second bolt hole 131. In an example, when the press block 120 is placed on the press block connector 130 and is to be mounted on the press block connector 130, the first and second bolt holes 121 and 131 may be aligned first.
Fig. 8 is a sectional view of a section B-B' of the pressurizing device 100 for a battery module of fig. 3 according to some embodiments of the present application. As shown in fig. 8, at least a portion of the latch mechanism 140 can be inserted into the first and second latch holes 121 and 131 to fix the relative position between the press block 120 and the press block connector 130. Moreover, at least a portion of the latch mechanism 140 can be removed from the first latch bore 121 (e.g., from the first latch bore 121 in a direction indicated by an arrow in fig. 8) to allow movement of the compact 120 relative to the compact connector 130.
In the present embodiment, the press 110 may be a hydraulic or pneumatic driven press. For example, the pressurizing machine 110 may be a hydraulic cylinder or a pneumatic cylinder. Taking a pneumatic cylinder as an example, the pressurizing machine 110 may include a cylinder body, a piston rod provided in the cylinder body, and a sealing device. By adjusting the pressure of the gas input into the cylinder, the cylinder and the piston rod can be controlled to move relatively. In the example of fig. 1 to 3, the piston rod of the pressurizing machine 110 is connected with the press block connector 130, so that the battery module in contact with the press block 120 is pressurized by extending the piston rod and via the press block connector 130 and the press block 120.
Different compacts 120 may have different shapes. For example, the pressing block 120 may have different lengths, widths, or thicknesses according to the size and type of the battery module to be pressurized, and the surface of the pressing block 120 for contacting the battery module may be continuous or discontinuous. Further, the pressing block 120 may be made of a metal material, for example.
The press connection 130 may be a press connection plate, in some examples, the press connection 130 is a separate component from the press 110. In some examples, the briquetting connector 130 may be integral with the press 110, or the briquetting connector 130 may be part of the press 110.
The latch mechanism 140 may be provided at one side of the press block connector 130 as shown in fig. 1 to 3, or may be provided inside the press block connector 130, for example, the latch mechanism 140 may be integrated inside the press block connector 130, and may protrude outward toward the press block 120 for inserting a portion of the first latch hole 121 of the press block 120. In the arrangement shown in fig. 1 to 3, the pressurizing device 100 for the battery module includes two latch mechanisms 140, and the two latch mechanisms 140 are disposed at both sides of the pressurizing machine 110, respectively, whereby a relatively even force distribution can be obtained. In an example, not shown, the pressurizing device 100 for the battery module may include other numbers of the latch mechanisms 140, and the latch mechanisms 140 may be arranged according to the shape of the press block 120 and/or the press block connector 130.
Thereby, through the latch mechanism 140 and the latch holes (the first latch hole 121 and the second latch hole 131) provided in the press block 120 and the press block connector 130, respectively, it is possible to achieve quick fixing and quick release fixing between the press block 120 and the press block connector 130, thereby improving the efficiency of replacing the press block 120 in the pressurizing device 100 for the battery module.
According to some embodiments of the present application, the press block 120 may include a first feature, and the press block connector 130 may include a second feature that is capable of mating with the first feature, such that when the first feature mates with the second feature, the relative position between the press block 120 and the press block connector 130 is locked in at least one degree of freedom.
In an example, the first feature and the second feature may form a shape that mates with each other. As shown in fig. 8, when the first feature is mated with the second feature, the relative position between the compact 120 and the compact connector 130 is locked in at least one degree of freedom, e.g., the compact 120 cannot move relative to the compact connector 130 in a direction perpendicular to the direction indicated by the arrow.
Thus, the mutually matable features provided on the press block 120 and the press block connector 130, respectively, allow locking the relative position between the press block 120 and the press block connector 130 in at least one degree of freedom, thereby positioning the press block 120. It will be appreciated that the first and second features may have other shapes, so long as the first and second features are capable of mating with one another such that when the first and second features mate, the relative position between the press block 120 and the press block connector 130 is locked in at least one degree of freedom.
According to some embodiments of the present application, the first feature may include a first wedge groove 122 and the second feature may include a second wedge groove 132 capable of mating with the first wedge groove 122, movement between the press block 120 and the press block connector 130 in at least one direction and rotation about the at least one direction being locked when the first wedge groove 122 mates with the second wedge groove 132.
As shown in fig. 4 and 7, the first feature may include a first wedge-shaped groove 122. As shown in fig. 1 and 6, the second feature may include a second wedge-shaped groove 132. As shown in fig. 8, the first wedge groove 122 may form a pair lock with the second wedge groove 132 so that the press block 120 may be easily placed on the press block connector 130 in a direction perpendicular to the direction shown by the arrow in fig. 8. When the press block 120 is placed on the press block connector 130, if a portion of the latch mechanism 140 is not inserted into the first latch hole 121, the press block 120 will tend to topple in the counterclockwise direction in fig. 8 by its own weight, however, this tendency will be prevented at least by the counter-lock engagement formed between the first and second wedge grooves 122 and 132. In this case, unless acted upon by an external force, movement between the press block 120 and the press block link 130 in the arrow direction (or the direction opposite to the arrow direction) in fig. 8 and rotation in the clockwise or counterclockwise direction will be locked or prevented.
Thus, a pair lock may be formed between the first wedge groove 122 and the second wedge groove 132, which are provided on the press block 120 and the press block connector 130, respectively, to prevent the press block 120 from being overturned or dropped from the press block connector 130 while coarsely positioning the press block 120. The fit between the wedge grooves allows for a certain fit deviation, which can improve the replacement efficiency especially in the context of high frequency replacement of the press block 120.
According to some embodiments of the present application, the first feature may include one of a pin and a pin hole, and the second feature may include the other of the pin and the pin hole, and movement between the press block 120 and the press block connector 130 in and rotation about at least one direction is locked when the pin and the pin hole are mated.
As shown in fig. 4 and 7, the first feature of the press block 120 includes a pin hole 123, and as shown in fig. 6, the second feature of the press block connector 130 includes a pin 133. Fig. 9 is a sectional view of a section C-C' of the pressurizing device 100 for a battery module of fig. 3 according to some embodiments of the present application. As shown in fig. 9, the pin 133 is engaged with the pin hole 123, and at this time, movement between the press block 120 and the press block link 130 in the arrow direction (or the direction opposite to the arrow direction) and rotation in the clockwise or counterclockwise direction are locked or prevented. It will be appreciated that although in the examples shown in fig. 4, 6 and 7, the pin holes 123 are provided on the press block 120 and the pins 133 are provided on the press block connector 130, in other examples, the pin holes may be provided on the press block connector 130 and the pins may be provided on the press block 120, so long as the pins and pin holes are capable of mating with each other. Further, it will be appreciated that the number of pins and pin holes may be 1, 2 or more, respectively, and that when the number of pins and pin holes is 2 or more, respectively, the pins and pin holes may be disposed in any direction as long as they are capable of restricting movement in at least one direction and rotation about at least one direction between the press block 120 and the press block connection 130 upon mating.
Thus, rapid positioning between the press block 120 and the press block connector 130 can be achieved through the pin and the pin hole. For example, as shown in fig. 8, the press block 120 can be quickly positioned to the position shown in fig. 8 when placed on the press block connector 130 by the engagement between the pin and the pin hole.
According to some embodiments of the present application, a dimension of at least one cross-section of the pin bore 123 in a first direction is greater than a dimension of any cross-section of the pin 133 in a second direction corresponding to the first direction.
Fig. 10 is a cross-sectional view of pins and pin holes of a pressurizing device for a battery module according to some embodiments of the present application. As shown in fig. 10, the pin 133 may be, for example, a pin having a circular cross section, and the cross-sectional diameter of the pin may be D1; accordingly, the cross-sectional shape of the pin hole 123 may be set to an oblong shape as shown on the right side of fig. 10, that is, a dimension of the pin hole 123 in one direction may be substantially equal to the diameter D1 of the pin 133, and a dimension of the pin hole 123 in, for example, a direction perpendicular to the direction of D1 may be D2, and D2 is larger than the diameter D1 of the pin 133.
Thus, in the process of inserting the pin 133 into the pin hole 123, a certain deviation in the relative position of the pin 133 and the pin hole 123 is allowed without the need for the pin 133 to be perfectly aligned with the pin hole 123, thereby allowing a certain deviation in the placement of the compact 120, thereby further improving the efficiency of replacement of the compact 120.
According to some embodiments of the present application, the pin 133 may include a tapered end.
Fig. 11 is a partial enlarged view of the pin 133 of the pressurizing device 100 for a battery module according to some embodiments of the present application, and it can be seen that the pin 133 includes a tapered end. In an example, the base region of the pin 133 may have a circular cross-section and the end is a conical end.
The tapered ends facilitate smooth insertion of the pins 133 into the corresponding pin holes 123.
According to some embodiments of the present application, the latch mechanism 140 may include a latch 141, at least a portion of the latch 141 being capable of passing through the second latch hole 131 and being inserted into the first latch hole 121, thereby fixing a relative position between the compact 120 and the compact connector 130, and at least a portion of the latch 141 being capable of being removed from the first latch hole 121 to allow the compact 120 to move relative to the compact connector 130.
With further reference to fig. 8, the latch mechanism 140 is disposed on one side of the press block connector 130, and the press block 120 is disposed on the other side of the press block connector 130. The end of the bolt 141 can pass through the second bolt hole 131 and be inserted into the first bolt hole 121, whereby movement between the press block 120 and the press block connector 130 in a direction perpendicular to the direction indicated by the arrow is prevented. When it is desired to allow the movement of the press block 120 with respect to the press block connector 130, the end of the latch 141 may be retracted into the second latch hole 131, and at this time, movement between the press block 120 and the press block connector 130 in a direction perpendicular to the direction indicated by the arrow is allowed, so that the press block 120 may be lifted in that direction.
Thus, the body of the latch mechanism 140 may be disposed at one side of the press block connector 130, and the rapid fixing of the press block 120 may be achieved by the latch 141 penetrating through the press block connector 130 and being inserted into the press block 120, and the latch 141 may be retracted into the second latch hole 131 when the fixing of the press block 120 is not required, which is relatively simple and efficient.
According to some embodiments of the present application, with further reference to fig. 8, the pressurizing device 100 for a battery module may further include a bushing 150 disposed in the second pin hole 131, at least a portion of the pin 141 being capable of passing through the second pin hole 131 via the bushing 150.
In an example, the bushing 150 may be an oil-free bushing. The bushing body of the oilless bushing can be impregnated with lubricating oil, and thus can be used as a sliding bearing without supplying oil to the bushing. The bushing 150 may be fitted in the second pin hole 131 in an interference fit manner, and accordingly, the pin 141 may be fitted in the bushing 150 in a clearance fit manner. The outer diameter of the pin 141 is smaller than the inner diameter of the second pin hole 131, and thus friction is not generated with the second pin hole 131.
Thereby, friction between the plug 141 and the second plug hole 131 can be reduced, and weak sliding friction is generated between the plug 141 and the bushing 150 when the plug 141 is inserted and extracted, so that the plug 141 moves smoothly therein.
According to some embodiments of the present application, latch mechanism 140 may comprise a pneumatic latch mechanism.
The pneumatic plug pin mechanism is driven by air pressure. For example, the latch mechanism 140 may be connected to a piston rod of a pneumatic cylinder, and the cylinder body and the piston rod may be controlled to move relatively by adjusting the pressure of gas input into the cylinder body of the pneumatic cylinder; and the plug 141 can be stabilized at the insertion position by controlling the pressure of the gas in the cylinder to be in a stable range.
The pneumatic latch mechanism can provide a large insertion force at a low cost and can always provide a stable pressure during the pressurizing of the battery module by the pressurizing device 100 for the battery module, preventing the pressing block 120 from being undesirably dropped.
Further, it will be appreciated that the pneumatic latch mechanism may share a gas source with the pneumatic press.
With continued reference to fig. 7 or 8, according to some embodiments of the present application, the first pin aperture 121 may be a wedge-shaped pin aperture and at least a portion of the pin mechanism 140 (e.g., an end of the pin 141) may include a wedge-shaped end.
The wedge shape of the end of the latch mechanism 140 may match the wedge shape of the inner wall of the first latch hole 121.
The wedge-shaped bolt hole and the wedge-shaped bolt end are favorable for the bolt 141 to be smoothly inserted into the first bolt hole 121, and after the bolt 141 is inserted into the first bolt hole 121, a relatively stable contact surface can be formed between wedge-shaped surfaces of the two, so that the shaking of the pressing block 120 can be reduced.
According to some embodiments of the present application, the surface of the pressing block 120 for contacting the battery module may include a non-metallic material.
In an example, the non-metallic material may include polytetrafluoroethylene (teflon). For example, the surface of the pressing block 120 for contacting the battery module may have a polytetrafluoroethylene coating. The polytetrafluoroethylene material has excellent heat resistance and cold resistance, and can be used for a long time in an environment of-180-260 ℃ for example. The polytetrafluoroethylene material has the characteristics of acid resistance, alkali resistance, various organic solvents resistance and high temperature resistance.
By using a material including a non-metal as a surface material of the press block 120 for contacting the battery module, it is possible to reduce abrasion of the press block 120 to the battery surface, thereby protecting the battery module.
According to some embodiments of the present application, the press block 120 may include a detachable non-metal gasket for contacting the battery module.
In an example, the non-metal gasket may be fixed to the pressing block 120 by means of screw connection, and screws may be screwed from opposite sides of the surface of the non-metal gasket for contacting the battery module, thereby preventing the screws from protruding from the surface of the non-metal gasket for contacting the battery module to scratch the battery module.
Thus, the nonmetallic gasket can be replaced. It will be appreciated that the compact 120 may include a plurality of removable non-metallic shims, any of which may be removed and replaced.
The embodiment of the application provides a pressurizing system for a battery module. Fig. 12 is a schematic structural view of a pressurizing system 200 for a battery module according to some embodiments of the present application. As shown in fig. 12, the pressurizing system 200 for a battery module includes the pressurizing device 100 for a battery module according to an embodiment of the present application and a press block clamping mechanism 210, and the press block clamping mechanism 210 is used to clamp the press block 120 for movement.
As shown in fig. 12, the compact clamping mechanism 210 may be disposed on the slide rail 310 such that the compact clamping mechanism 210 may move along the direction of the slide rail 310; and the press block clamping mechanism 210 may be disposed on the lifting mechanism 410, so that the press block clamping mechanism 210 may be driven by the lifting mechanism 410 to move up and down, thereby realizing moving and transporting of the press block 120. In an example, the pressurizing system 200 for a battery module may further include a middle turret 510, and the compact clamping mechanism 210 may transport the detached compact from the pressurizing device 100 for a battery module to the middle turret 510, and may transport the compact to be replaced from the middle turret 510 to the pressurizing device 100 for a battery module.
The pressing blocks are clamped through the pressing block clamping mechanism 210, so that automatic replacement of the pressing blocks can be realized, and the efficiency of replacing the pressing blocks is further improved.
Referring further to fig. 13-15, wherein fig. 13 is a schematic view of a press block clamping mechanism 210 of a press block clamping system 200 for a battery module according to some embodiments of the present application clamping a press block 120; fig. 14 is a schematic view of the jaws of a press block clamping mechanism 210 of a pressurization system 200 for a battery module according to some embodiments of the present application; and fig. 15 is a sectional view of a section D-D' of a pressing block 120 of the pressurizing device 100 for a battery module of fig. 5 according to some embodiments of the present application.
According to some embodiments of the present application, the press block clamping mechanism 210 may include a clamping jaw 211 and a clamping pin 212 disposed on the clamping jaw 211, and the press block 120 may include a groove 124 allowing the clamping jaw 211 to enter and a clamping pin hole 125 allowing the clamping pin 212 to be inserted, the clamping pin hole 125 being disposed on a sidewall of the groove 124.
In an example, compact clamping mechanism 210 may include a pair of clamping jaws 211, with clamping pins 212 on the pair of clamping jaws 211 disposed in opposite directions (e.g., facing or away from each other). For example, as shown in fig. 13, clamping pins on a pair of clamping jaws 211 may be disposed facing each other, and the pair of clamping jaws 211 may be moved close to each other so that clamping and fixing of the press block 120 can be completed when the clamping pins 212 on the pair of clamping jaws 211 are respectively inserted into corresponding clamping pin holes 125 on the groove side walls of the press block 120.
The grooves 124 on the press block 120 reduce the weight of the press block 120 itself, and provide a space for the clamping jaws 211 to extend into, so that the clamping jaws 211 and the press block 120 can be relatively fixed after the clamping pins 212 on the clamping jaws 211 are inserted into the clamping pin holes 125 on the side walls of the grooves.
Embodiments of the present application provide a method of replacing a compact with a pressurization system of an embodiment of the second aspect of the present application.
Fig. 16 is a flowchart of a method 300 of replacing a compact with a compression system 200 for a battery module according to some embodiments of the present application.
As shown in fig. 16, the method 300 includes:
step S301, enabling a part of the bolt mechanism inserted into the bolt hole of the first pressing block to be moved out of the bolt hole of the first pressing block;
step S302, clamping the first press block by using a press block clamping mechanism to move so as to separate the first press block from the press block connecting piece;
step S303, clamping the second pressing block by using a pressing block clamping mechanism to move to a position where a bolt hole of the second pressing block is aligned with a bolt hole of the pressing block connecting piece; and
step S304, at least one part of the bolt mechanism is inserted into the bolt hole of the pressing block connector and the bolt hole of the second pressing block so as to fix the relative position between the second pressing block and the pressing block connector.
The first press block may be a press block currently mounted on the press block connection plate, and the second press block may be a press block to be replaced on the press block connection plate.
Therefore, on the basis of realizing quick fixation and quick removal fixation between the pressing block and the pressing block connecting piece, the efficiency of replacing the pressing block in the pressurizing system is improved.
The technical scheme of the application is further described through a specific embodiment. As shown in fig. 1 to 15, the pressurizing device 100 for a battery module includes: the press 110, the press block 120, the press block connector 130 and the latch mechanism 140. The press block connector 130 is used to connect the press 110 and the press block 120. The press block 120 includes a detachable non-metal gasket for contacting the battery module. The press block 120 is provided with a first bolt hole 121. Further, the press block connector 130 is provided with a second bolt hole 131. At least a portion of the pins 141 of the pin mechanism 140 can pass through the second pin holes 131 and be inserted into the first pin holes 121 to fix the relative position between the press block 120 and the press block connector 130. Also, at least a portion of the pins 141 of the pin mechanism 140 can be moved out of the first pin holes 121 (retracted into the second pin holes 131) to allow movement of the compact 120 relative to the compact connector 130. The first pin hole 121 is a wedge-shaped pin hole, and the end of the pin 141 of the pin mechanism 140 includes a wedge-shaped end.
The pressurizing device 100 for the battery module includes two latch mechanisms 140, and the two latch mechanisms 140 are disposed at both sides of the pressurizing machine 110, respectively, whereby a relatively even force distribution can be obtained.
The press block 120 includes a first wedge groove 122, and the press block connector 130 includes a second wedge groove 132 capable of mating with the first wedge groove 122, such that when the first wedge groove 122 mates with the second wedge groove 132, a relative position between the press block 120 and the press block connector 130 is locked in at least one degree of freedom. Further, the press block 120 includes a pin hole 123, and the press block connector 130 includes a pin 133 capable of being engaged with the pin hole 123, such that when the pin 133 is engaged with the pin hole 123, a relative position between the press block 120 and the press block connector 130 is locked in at least one degree of freedom. Further, the degrees of freedom defined by first and second wedge grooves 122, 132 are different from the degrees of freedom defined by pin hole 123, 133. And the press block has a pair of pin holes 123 and the press block connector 130 has a corresponding pair of pins 133.
Further, a dimension of at least one cross section of the pin hole 123 in the first direction is greater than a dimension of any cross section of the pin 133 in the second direction corresponding to the first direction. And pin 133 includes a tapered end.
Further, the pressurizing device 100 for a battery module further includes a bushing 150 disposed in the second pin hole 131, and at least a portion of the pin 141 can pass through the second pin hole 131 via the bushing 150.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution 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 scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the embodiments, and are intended to be included within the scope of the claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (15)

1. A pressurizing device for a battery module, comprising:
Pressurizing machine;
a press block provided with a first bolt hole;
the pressing block connecting piece is used for connecting the pressurizing machine and the pressing block and is provided with a second bolt hole; and
a latch mechanism, wherein at least a portion of the latch mechanism is insertable into the first and second latch holes to fix a relative position between the press block and the press block connector and is removable from the first latch hole to allow the press block to move relative to the press block connector, and wherein the pressurizing machine is configured to pressurize a battery module in contact with the press block via the press block connector and the press block.
2. The pressurization device of claim 1, wherein the press block includes a first feature and the press block connector includes a second feature mateable with the first feature such that when the first feature mates with the second feature, a relative position between the press block and the press block connector is locked in at least one degree of freedom.
3. The pressurization device of claim 2, wherein the first feature comprises a first wedge groove and the second feature comprises a second wedge groove engageable with the first wedge groove, wherein movement between the press block and the press block connector in at least one direction and rotation about at least one direction is locked when the first wedge groove is engaged with the second wedge groove.
4. The compression device of claim 2, wherein the first feature comprises one of a pin and a pin hole and the second feature comprises the other of the pin and pin hole, wherein movement between the press block and the press block connector in at least one direction and rotation about at least one direction is locked when the pin and pin hole are mated.
5. The compression device of claim 4, wherein a dimension of at least one cross section of the pin bore in a first direction is greater than a dimension of any cross section of the pin in a second direction corresponding to the first direction.
6. The compression device of claim 4, wherein the pin includes a tapered end.
7. A pressing arrangement according to any one of claims 1 to 6, wherein the latch mechanism comprises a latch, at least a portion of which is insertable through the second latch aperture and into the first latch aperture to fix the relative position between the press block and the press block connector, and the at least a portion of which is removable from the first latch aperture to allow movement of the press block relative to the press block connector.
8. The pressurization device of claim 7, further comprising a bushing disposed in the second pin bore, at least a portion of the pin being capable of passing through the second pin bore via the bushing.
9. A pressurizing device according to any one of claims 1 to 6, wherein the latch mechanism comprises a pneumatic latch mechanism.
10. The pressurization device of any one of claims 1 to 6, wherein the first latch bore is a wedge-shaped latch bore, and the at least a portion of the latch mechanism includes a wedge-shaped end.
11. The pressurizing device according to any one of claims 1 to 6, wherein a surface of the pressing block for contacting the battery module includes a nonmetallic material.
12. The pressurizing device of claim 11, wherein the press block includes a detachable non-metal gasket for contacting the battery module.
13. A compression system for a battery module, comprising:
the pressurizing device according to any one of claims 1-12; and
the briquetting clamping mechanism is used for clamping the briquetting to move.
14. The pressurization system of claim 13, wherein the press block clamping mechanism includes a jaw and a clamping pin disposed on the jaw, and the press block includes a recess to allow the jaw to enter and a clamping pin hole to allow the clamping pin to be inserted, the clamping pin hole being disposed on a sidewall of the recess.
15. A method of replacing a compact using the pressurization system of claim 13 or 14, comprising:
removing a portion of the latch mechanism inserted into a latch hole of a first press block from the latch hole of the first press block;
clamping the first press block by using the press block clamping mechanism to move so as to separate the first press block from the press block connecting piece;
clamping a second press block by using the press block clamping mechanism to move to a position where a bolt hole of the second press block is aligned with a bolt hole of the press block connecting piece; and
at least a portion of the latch mechanism is inserted into the latch hole of the press block connector and the latch hole of the second press block to fix the relative position between the second press block and the press block connector.
CN202311350713.6A 2023-10-18 2023-10-18 Pressurizing device, system and method for replacing pressing block for battery module Active CN117096415B (en)

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CN202311350713.6A CN117096415B (en) 2023-10-18 2023-10-18 Pressurizing device, system and method for replacing pressing block for battery module

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CN202311350713.6A CN117096415B (en) 2023-10-18 2023-10-18 Pressurizing device, system and method for replacing pressing block for battery module

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KR100832046B1 (en) * 2007-08-06 2008-05-27 경신공업 주식회사 Battery terminal of a car
CN204893486U (en) * 2015-07-29 2015-12-23 江西洪都航空工业集团有限责任公司 Quick clamping positioning fixture
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CN208548853U (en) * 2018-06-25 2019-02-26 成都中建材光电材料有限公司 A kind of photovoltaic module briquetting mounting structure
CN212277277U (en) * 2020-08-26 2021-01-01 深圳吉阳智能科技有限公司 Electricity core pre-compaction forming device
CN212949379U (en) * 2020-07-10 2021-04-13 成都旭阳佛吉亚汇锋汽车内饰件有限公司 Anti-falling device of press machine

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ITMI20130898A1 (en) * 2013-05-31 2014-12-01 Danieli Off Mecc SHOE ADJUSTMENT SYSTEM OF A MOBILE CROSS-BEAM OF A PRESS

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Publication number Priority date Publication date Assignee Title
KR100832046B1 (en) * 2007-08-06 2008-05-27 경신공업 주식회사 Battery terminal of a car
CN204893486U (en) * 2015-07-29 2015-12-23 江西洪都航空工业集团有限责任公司 Quick clamping positioning fixture
CN106812397A (en) * 2017-02-16 2017-06-09 王力安防科技股份有限公司 A kind of dust-proof latch with clearance compensation function
CN208548853U (en) * 2018-06-25 2019-02-26 成都中建材光电材料有限公司 A kind of photovoltaic module briquetting mounting structure
CN212949379U (en) * 2020-07-10 2021-04-13 成都旭阳佛吉亚汇锋汽车内饰件有限公司 Anti-falling device of press machine
CN212277277U (en) * 2020-08-26 2021-01-01 深圳吉阳智能科技有限公司 Electricity core pre-compaction forming device

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