WO2024016937A1 - Battery module shaping mechanism - Google Patents

Abstract

A battery module shaping mechanism, comprising: a base (40); a side surface shaping part which is movably arranged on the base in a first direction, wherein the side surface shaping part is used for flattening the side surface of a battery module (20); and a top surface shaping part which is movably arranged on the side surface shaping part in a second direction, wherein the second direction is perpendicular to the first direction, and the top surface shaping part is used for flattening the top surface of the battery module. The top surface shaping part is integrated with the side surface shaping part, such that the structure is more compact, the device complexity is reduced, the reliability of the battery module shaping mechanism is improved, and the production efficiency of batteries is improved.

Description

Battery module shaping mechanism

Cross-references to related applications

This application claims priority to Chinese patent application CN2022218771155 titled "Battery Module Shaping Mechanism" submitted on July 21, 2022. The entire content of this application is incorporated herein by reference.

Technical field

This application relates to the field of battery manufacturing equipment, and specifically to a battery module shaping mechanism.

Background technique

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

During the battery assembly process, the battery module needs to be reshaped by a battery module reshaping device so that the battery cells in the battery module are neatly arranged. However, the existing battery module reshaping device has a complex structure, low reliability, and reduces Therefore, improving the reliability of the battery module shaping device is an urgent technical problem that needs to be solved.

Contents of the invention

This application provides a battery module shaping mechanism. The battery module shaping mechanism has good reliability.

This application provides a battery module shaping mechanism, including: a base; a side shaping part, which is movably arranged on the base along a first direction, and the side shaping part is used to flatten the side of the battery module; a top surface shaping part, The side shaping part is movably arranged along the second direction, the second direction is perpendicular to the first direction, and the top shaping part is used to flatten the top surface of the battery module.

In the above solution, the top surface shaping part is integrated into the side shaping part, and the two share some parts, which reduces the complexity of the battery module shaping mechanism, thereby improving the reliability of the battery module shaping mechanism and improving production efficiency.

In some embodiments, the top surface shaping part includes a fixed plate and a plurality of pressing units, the fixed plate is movably arranged on the side shaping part, and the plurality of pressing units are arranged on the fixed plate at intervals.

In the above solution, the pressing unit is installed and fixed on the fixed plate. Since the fixed plate can be set movable, driving the fixed plate to move can drive multiple pressing units to move simultaneously, further simplifying the structure of the top surface shaping part and improving the battery model. The reliability of the group shaping mechanism.

In some embodiments, the pressing unit is detachably provided on the fixing plate.

In the above solution, the detachable fixing method of the pressing down unit facilitates adjusting the number of pressing down units and the spacing between adjacent pressing down units, thus improving the adaptability of the top surface shaping part.

In some embodiments, multiple push-down units are formed into groups of two, and the push-down units in the same group correspond to the two electrode terminals of the same battery cell.

In the above solution, the same group of pressing units corresponds to the two electrode terminals of the same battery cell. The two pressing units act on one battery cell at the same time, so that the battery cells are evenly stressed and the top surface shaping is increased. Effect.

In some embodiments, the pressing unit includes a guide post, a contact head and an elastic member. The guide post is provided on the fixed plate, the contact head is slidably connected to the guide post, one end of the elastic member is connected to the guide post, and the other end of the elastic member is connected to the guide post. contact head.

In the above solution, the elastic member plays a buffering role and reduces the risk of damaging the battery cells due to excessive force exerted by the pressing unit on the battery cells.

In some embodiments, the battery module shaping mechanism further includes: a first driving member, installed on the base, for driving the side shaping part to move in the first direction; a second driving part, installed on the side shaping part, for driving the top The facial plastic surgery part moves along the second direction.

In the above solution, the first driving member is used to drive the side shaping part to move and generate pressure on the side of the battery module, and the second driving member is used to drive the top surface shaping part to move and generate pressure on the top surface of the battery module. Purpose.

In some embodiments, the side shaping part includes a side pressure plate, the side pressure plate is used to contact the side of the battery module, and the top surface shaping part and the second driving member are respectively disposed on both sides of the side pressure plate.

In the above solution, the side pressure plate exerts pressure on the side of the battery module to shape the side of the battery module. The side pressure plate can be in contact with multiple battery cells at the same time. First, it improves the shaping efficiency, and second, it reduces the This eliminates the risk of excessive force acting on a single battery cell. The side-mounted structure of the second driving part and the top surface shaping part improves the space utilization of the side shaping part; and the side arrangement facilitates maintenance personnel to separately inspect and maintain the second driving part and the top surface shaping part, improving work efficiency. .

In some embodiments, the side pressure plate is provided with a first through hole, and the battery module shaping mechanism further includes a second connecting member that passes through the first through hole to connect the second driving member and the top surface shaping part.

In the above solution, the purpose of drivingly connecting the second driving member and the top surface shaping part is achieved through the second connecting member.

In some embodiments, the first driving member and the side pressure plate are respectively disposed on both sides of the base.

In the above solution, the structure in which the first driving part and the side pressure plate are arranged on separate sides improves the space utilization of the side where the side pressure plate is installed on the base; and the separate arrangement facilitates maintenance personnel to separately inspect and maintain the first driving part and the side pressure plate, improving Improve work efficiency.

In some embodiments, the base is provided with a second through hole, and the battery module shaping mechanism further includes a first connecting member that passes through the second through hole to connect the first driving member and the side pressure plate.

In the above solution, the purpose of drivingly connecting the second driving member and the side pressure plate is achieved through the first connecting member.

In some embodiments, the battery module shaping mechanism further includes: a first guide rail, fixed to the base and extending along the first direction, with a side shaping part slidably disposed on the first guide rail; a second guide rail, fixed to the side shaping part and Extending along the second direction, the top surface shaping part is slidably disposed on the second guide rail.

In the above solution, the first guide rail realizes the purpose of sliding the side shaping part movably on the base, the second guide rail realizes the purpose of movably disposing the top surface shaping part on the side shaping part, and the two shaping parts are respectively connected with The two guide rails cooperate to make the movement more precise.

In some embodiments, the side shaping part further includes a bottom plate, the bottom plate is slidably disposed on the first guide rail, and the side pressure plate and the second driving member are fixed to the bottom plate.

In the above solution, on the one hand, the bottom plate enables the second driving member to be firmly fixed on the side shaping part; on the other hand, during the operation of the second driving member, the bottom plate plays a supporting role on the second driving member, so that the side pressure plate does not It needs to be affected by the force of the second driving part to protect the side pressure plate.

In some embodiments, the side shaping part further includes a reinforcing rib plate, which is connected to the bottom plate and the side pressure plate.

In the above solution, the reinforced rib plate increases the connection strength between the bottom plate and the side pressure plate.

In some embodiments, the battery module shaping mechanism further includes a detection unit disposed on the side shaping part for detecting the position of the top shaping part.

In the above solution, the position of the top surface shaping part relative to the side pressure plate can reflect the force of the top surface shaping part on the battery cell, and the position of the top surface shaping part is detected by the detection unit to facilitate user control.

In some embodiments, there are two side shaping parts, the two side shaping parts are arranged oppositely along the first direction, and a battery module placement area is formed between the two side shaping parts; there are two top shaping parts and are arranged with each other. The side shaping parts correspond one to one, and each top surface shaping part is movably arranged on the corresponding side shaping part along the second direction.

In the above solution, on the one hand, there are two side shaping parts, and when the battery module is placed between the two side shaping parts, both sides of the battery module can be shaped at the same time; on the other hand, the top surface is shaped The parts are divided into two groups, which reduces the workload of the top surface shaping part, increases the service life of the top surface shaping part, and further improves the reliability of the battery module shaping mechanism.

The above description is only an overview of the technical solutions of the present application. In order to have a clearer understanding of the technical means of the present application, they can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present application more obvious and understandable. , the specific implementation methods of the present application are specifically listed below.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are for the purpose of illustrating preferred embodiments only and are not to be construed as limiting the application. Also, the same parts are represented by the same reference numerals throughout the drawings. In the attached picture:

Figure 1 is a schematic diagram of the exploded structure of a battery according to some embodiments of the present application;

Figure 2 is a schematic three-dimensional structural diagram of the battery module shaping mechanism of some embodiments of the present application;

Figure 3 is an enlarged view of point A in Figure 2;

Figure 4 is a schematic side structural diagram of the battery module shaping mechanism of some embodiments of the present application;

Figure 5 is a schematic front view of the battery module shaping mechanism of some embodiments of the present application;

Figure 6 is an enlarged view of B in Figure 5 .

The reference numbers in the specific implementation are as follows:
100-battery; 10-box; 11-first part; 12-second part; 20-battery module; 201-battery cell;
30-detection unit; 40-base; 401-second through hole; 501-fixing plate; 502-fixing block; 503-pressure unit; 5031-contact head; 5032-elastic member; 5033-guide post; 504-th Two driving parts; 505-connecting angle plate; 5051-notched groove; 506-second connecting piece; 601-side pressure plate; 602-bottom plate; 603-reinforced rib plate; 604-first driving part; 605- First connecting piece; 701-butting plate; 702-third guide rail; 703-third driving piece; 704-third connecting piece; 80-first guide rail; 801-first slider; 90-second guide rail; 901-Second slider.

Detailed ways

The embodiments of the technical solution of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only used to illustrate the technical solution of the present application more clearly, and are therefore only used as examples and cannot be used to limit the protection scope of the present application.

Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the technical field belonging to this application; the terms used herein are for the purpose of describing specific embodiments only and are not intended to be used in Limitation of this application; the terms "including" and "having" and any variations thereof in the description and claims of this application and the above description of the drawings are intended to cover non-exclusive inclusion.

In the description of the embodiments of this application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying the relative importance or implicitly indicating the quantity or specificity of the indicated technical features. Sequence or priority relationship. In the description of the embodiments of this application, "plurality" means two or more, unless otherwise explicitly and specifically limited.

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 present application. The appearances of this 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. Those skilled in the art understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of this application, the term "and/or" is only an association relationship describing associated objects, indicating that there can be three relationships, such as A and/or B, which can mean: A exists alone, and A exists simultaneously and B, there are three cases of B alone. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.

In the description of the embodiments of this application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to It is more than two pieces (including two pieces).

In the description of the embodiments of this application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right" and "vertical" The orientation or positional relationships indicated by "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on those shown in the accompanying drawings. The orientation or positional relationship is only for the convenience of describing the embodiments of the present application and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the implementation of the present application. Example limitations.

In the description of the embodiments of this application, unless otherwise clearly stated and limited, technical terms such as "installation", "connection", "connection" and "fixing" should be understood in a broad sense. For example, it can be a fixed connection or a removable connection. It can be disassembled and connected, or integrated; it can also be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of simplicity, detailed descriptions of the same components in different embodiments are omitted. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length and width of the integrated device, are only illustrative illustrations and should not constitute any limitation to the present application. .

A battery refers to a single physical module that includes one or more battery modules to provide higher voltage and capacity. For example, a battery is composed of multiple battery modules connected in series or parallel. The battery module includes multiple battery cells, and the multiple battery cells are stacked. Multiple battery cells can be connected in series, in parallel, or in mixed connection. Mixed connection means that multiple battery cells are connected in series and in parallel.

During the battery assembly process, the shaping of the battery module refers to the shaping of multiple battery cells so that the battery cells can be arranged neatly. The battery module shaping mechanism includes a lateral shaping component and a top shaping component. The lateral shaping component makes the battery module horizontally flush by applying lateral pressure to multiple battery cells. The top shaping component is made by pressing multiple batteries laterally. Pressure is applied to the top of the monomer to make the top flush.

For a device, there are functional connections between its components. These functional connections make the device an organic whole with certain functions. If some parts fail, the functional connections between the parts will be lost. Disconnection is reflected on the entire device, which means that the function of the device is missing.

Reliability refers to the ability of a product to complete specified functions under specified conditions and within a specified time. If the number of parts in a device is greater, the functional relationship between the parts will be more complex, which will lead to a greater probability of loss of function of the device when the parts fail, thus the lower the reliability of the device.

The inventor found that the reason for the poor reliability of the existing battery module shaping mechanism is that on the one hand, the top shaping component and the side shaping component are designed as separate parts. They are two separate parts and have many parts.

On the other hand, the top surface shaping component has multiple pressing units, and these pressing units are respectively driven by multiple driving components, which also reduces the reliability of the battery module shaping mechanism.

The reduced reliability of the battery module shaping mechanism means that more time is needed for equipment repair and maintenance during the production process, which will reduce production efficiency.

In view of this, in order to solve the problem of low reliability of the battery module shaping mechanism, the inventor conducted in-depth research and designed a battery module shaping mechanism. In the battery module shaping mechanism, the top shaping part is integrated into the side shaping part. The two share some parts, which reduces the complexity of the battery module shaping mechanism, thereby improving the reliability of the battery module shaping mechanism.

Please refer to FIG. 1 , which is an exploded view of the battery 100 provided by some embodiments of the present application.

The battery 100 includes a case 10 and a plurality of battery cells 201 . The plurality of battery cells 201 are accommodated in the case 10 . Among them, the box 10 is used to provide accommodating space for the battery cells 201, and the box 10 can adopt a variety of structures. In some embodiments, the box 10 may include a first part 11 and a second part 12 , the first part 11 and the second part 12 cover each other, and the first part 11 and the second part 12 jointly define a space for accommodating the battery cell 201 of accommodation space. The second part 12 may be a hollow structure with one end open, and the first part 11 may be a plate-like structure. 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 receiving space. ; The first part 11 and the second part 12 may also be hollow structures with one side open, and the open side of the first part 11 is covered with the open side of the second part 12. Of course, the box 10 formed by the first part 11 and the second part 12 can be in various shapes, such as cylinder, rectangular parallelepiped, etc.

The battery 100 has a plurality of battery cells 201 . Multiple battery cells 201 can be connected in series, in parallel, or in mixed connection. Mixed connection means that the multiple battery cells 201 are both connected in series and in parallel. The plurality of battery cells 201 can be directly connected in series or in parallel or mixed together, and then the whole composed of the plurality of battery cells 201 can be accommodated in the box 10 ; of course, the plurality of battery cells 201 can also be connected in series first. The battery modules 20 may be connected in parallel or mixed. When the battery includes multiple battery modules 20 , the plurality of battery modules 20 may be connected in series, parallel, or mixed to form a whole, and be accommodated in the box 10 .

According to some embodiments of the present application, please refer to FIG. 2 , which is a schematic three-dimensional structural diagram of a battery module shaping mechanism in some embodiments of the present application. This application provides a battery module shaping mechanism. The battery module shaping mechanism includes a base 40, a side shaping part and a top shaping part; the side shaping part is movably arranged on the base 40 along the first direction, and the side shaping part is used for Flatten the side of the battery module 20; the top surface shaping part is movably arranged on the side shaping part along the second direction, the second direction is perpendicular to the first direction, and the top surface shaping part is used to flatten the top surface of the battery module 20 To flatten.

In the figure, the direction pointed by the Y axis is the first direction, and the direction pointed by the Z axis is the second direction; for example, when the first direction is the horizontal direction, the second direction can be the vertical direction.

The side shaping part is movably arranged on the base 40 along the first direction, which means that the side shaping part can move relative to the base 40, and its movement trajectory relative to the base 40 can be linear movement, curved movement, or The compound movement including linear movement and curved movement achieves the purpose of pressurizing the side of the battery module 20 by moving the side shaping part.

The fact that the top surface shaping part is movably arranged on the side shaping part along the second direction means that the top surface shaping part can move relative to the side shaping part, and its movement trajectory relative to the side shaping part can be linear movement or curved movement. , it can also be a composite movement including linear movement and curved movement, and the purpose of pressurizing the top surface of the battery module 20 is achieved by moving the side shaping part.

The top surface of the battery module 20 refers to the plane of the geometry composed of all battery cells 201 when the battery module 20 is placed horizontally. The side surface of the battery module 20 refers to the plane of all batteries when the battery module 20 is placed horizontally. The side surface of the geometry composed of single body 201. For example, a number of battery cells 201 are arranged in rows and columns. At this time, all the battery cells 201 form a cube. The top surface of the cube is the top surface of the battery module 20, and the side surfaces of the cube are the battery module. 20 side.

In the battery module 20, an adhesive layer may be provided at the bottom of the battery cell 201 to fix the battery cell 201, conduct heat and insulate. However, the thickness of the adhesive layer varies, so the battery cell 201 is placed where During operation, the height of the battery cell 201 may be different, so the top surface of the battery module 20 needs to be reshaped.

The base 40 can be used to install side shaping parts and other components, and can also be used to place the battery module 20 . For example, when using the battery module shaping mechanism, the battery module 20 can be placed on the base 40, or can be supported by other supports, as long as the battery module 20 is positioned relative to the top shaping part and the side shaping part. Suitable, so that the two can reshape the battery module 20 .

In this application, on the one hand, the top surface shaping part is integrated into the side shaping part. The side shaping part and the top surface shaping part can share some parts, which reduces the overall number of parts of the battery module shaping mechanism and reduces the cost of the battery module. The complexity of the shaping mechanism further improves the reliability of the battery module shaping mechanism. On the other hand, the split type of the existing battery module shaping mechanism will also cause the device to be too large. Specifically, the existing top shaping components and side shaping components both need to exert force on the battery module 20 to achieve shaping. For the purpose of lowering the top surface shaping components and There is a risk of interference between the side shaping components, and a certain distance is required between the top shaping components and the side shaping components. In this application, since the top surface shaping part is integrated into the side shaping part, the risk of interference between the two is reduced. Therefore, the device has the advantage of small size, and further has the advantages of convenient installation, arrangement, and position transfer.

Please continue to refer to Figure 2. According to some embodiments of the present application, optionally, the top surface shaping part includes a fixed plate 501 and a plurality of pressing down units 503. The fixing plate 501 is movably provided on the side shaping part, and the plurality of pressing down units 503 are arranged on the fixed surface at intervals. Plate 501.

The fixing plate 501 is used to install and fix the pressing unit 503.

In existing top surface shaping components, the pressing unit 503 is usually divided into multiple groups, each driven by multiple driving components. Although such an arrangement reduces the workload of a single driving component, it also requires the installation of multiple driving components, resulting in Complexity increases.

In this device, since the fixed plate 501 is movably arranged on the side shaping part, driving the fixed plate 501 to move can drive multiple pressing units 503 to move simultaneously, further simplifying the structure of the top shaping part and improving battery module shaping. Institutional reliability.

Please continue to refer to Figure 2. According to some embodiments of the present application, optionally, multiple push-down units 503 are formed into groups of two, and the push-down units 503 in the same group correspond to the two electrode terminals of the same battery cell 201 .

The battery cell 201 in this application is of a type in which the electrode terminals are located on the same side. There is usually a certain distance between the electrode terminals. If pressure is applied to the top surface of the battery cell 201 and only one of the electrode terminals is acted on, the battery cell 201 will be unevenly stressed, which will reduce the flattening effect and seriously affect the battery cell 201. It may happen that one side of the battery cell 201 is high and the other is low.

By arranging the pressing units 503 into groups, the pressing units 503 in the same group correspond to the two electrode terminals of the same battery cell 201. When the pressing unit 503 applies pressure to the battery cell 201, the two pressing units 503 acts on one battery cell 201 at the same time, making the battery cell 201 evenly stressed and increasing the top surface shaping effect.

According to some embodiments of the present application, optionally, the pressing unit 503 is detachably provided on the fixing plate 501 .

For different models of battery modules 20 , the model and quantity of the battery cells 201 used may be different according to the parameters of the battery module 20 , which may lead to changes in the spacing between electrode terminals of adjacent battery cells 201 . Furthermore, when shaping the top surface of the battery module 20, the electrode terminals are usually the highest points of the battery cells 201. Therefore, when pressure is applied to the top surface of the battery module 20, it usually acts on the electrode terminals of the battery cells 201. .

Therefore, the detachable fixing method of the pressing down units 503 increases the adaptability and compatibility of the top surface shaping part. Even if the model of the battery module 20 that needs shaping is changed, the number and spacing of the pressing down units 503 can be reasonably set to meet the requirements. Plastic surgery needs.

Please continue to refer to Figure 2, and please further refer to Figures 5 and 6. Figure 5 is a schematic front view of the battery module shaping mechanism of some embodiments of the present application, and Figure 6 is an enlarged view of B in Figure 5. According to some embodiments of the present application, optionally, the pressing unit 503 includes a guide post 5033, a contact head 5031 and an elastic member 5032. The guide post 5033 is provided on the fixed plate 501, and the contact head 5031 is slidably connected to the guide post 5033. One end of the elastic member 5032 is connected to the guide post 5033, and the other end of the elastic member 5032 is connected to the contact head 5031.

The contact head 5031 may be provided with a guide hole, and one end of the guide post 5033 is inserted into the guide hole to achieve the purpose of sliding connection between the contact head 5031 and the guide post 5033.

When applying pressure to the battery cells 201, it is necessary to reduce the risk of excessive pressure, otherwise the battery cells The casing of 201 may be deformed due to force, which may cause safety hazards such as thermal runaway.

When the pressing unit 503 is working, the contact head 5031 contacts the electrode terminal of the battery cell 201. As the fixed plate 501 moves toward the battery cell 201, the elastic member 5032 is gradually compressed, and the elastic restoring force of the elastic member 5032 acts on the battery cell. body 201 to achieve the purpose of shaping the top of the battery cell 201.

On the one hand, the elastic member 5032 plays a buffering role, reducing the risk of damaging the battery cell 201 due to excessive force exerted by the pressing unit 503 on the battery cell 201 . On the other hand, the elastic member 5032 makes the use of the top surface shaping part more convenient. If the contact head 5031 and the fixing plate 501 are rigidly connected, then when shaping the top surface of the battery module 20, the fixing plate 501 needs to be accurately controlled. The moving distance requires high equipment, and under the action of the elastic member 5032, the position of the fixed plate 501 relative to the battery cell 201 only needs to be within a certain range.

The elastic member 5032 can be a spring, and the spring is sleeved outside the side wall of the guide post 5033. The guide post 5033 plays a limiting role on the elastic member 5032, so that the elastic restoring force of the elastic member 5032 can keep acting on the battery along the axial direction of the spring. Monolith 201.

Optionally, the fixed plate 501 can be provided with multiple fixed blocks 502 at intervals. The fixed blocks 502 are provided with screw holes, and the guide posts 5033 are threadedly matched with the screw holes of the fixed blocks 502 to realize that the pressing unit 503 and the fixed plate 501 can be For the purpose of disassembly and connection, at the same time, two screw holes can be provided on the same fixed block 502 to achieve the purpose of grouping multiple pressing units 503 into two groups.

Please continue to refer to Figure 2. According to some embodiments of the present application, optionally, the side shaping part includes a side pressure plate 601 for contacting the side of the battery module 20 , and the top surface shaping part and the second driving member 504 are respectively provided on the side pressure plate 601 both sides.

The side pressure plate 601 exerts pressure on the side of the battery module 20 to shape the side of the battery module 20. The side pressure plate 601 can be a flat plate with a thickness direction extending along the first direction.

The two sides of the side pressure plate 601 refer to the side of the side pressure plate 601 facing the battery module 20 and the side facing away from the battery module 20 .

The side pressure plate 601 can contact multiple battery cells 201 at the same time. Preferably, it can contact all the battery cells 201 on one side of the battery module 20 at the same time. First, it improves the shaping efficiency, and second, it reduces the impact on a single battery cell. Risk of excessive body 201 force.

The side-mounted structure of the second driving member 504 and the top surface shaping part improves the space utilization at the side shaping part; and the side arrangement facilitates maintenance personnel to separately inspect and maintain the second driving part 504 and the top surface shaping part, which improves the efficiency of the space utilization. Work efficiency.

Please refer to Figure 3, which is an enlarged view of point A in Figure 2. According to some embodiments of the present application, optionally, the side pressure plate 601 is provided with a first through hole, and the battery module shaping mechanism further includes a second connecting member 506 that passes through the first through hole to connect the second connecting member 506 . Driving member 504 and top surface shaping part.

The second connecting member 506 plays a transmission role so that the torque of the second driving member 504 can be transmitted to the top surface shaping part. Specifically, the torque of the second driving member 504 acts on the fixed plate 501 through the second connecting member 506, thereby enabling the fixed plate 501 to move in the second direction.

Please refer to Figure 3, which is an enlarged view of point A in Figure 2. The second connecting member 506 may be a second rod body, and the second rod body passes through the first through hole. When the second rod body is connected to the second driving member 504, the movable end of the second driving member 504 may be provided with a snap ring. One end of the rod body connected to the second driving member 504 may be provided with a notch groove 5051, The notch groove 5051 is engaged in the snap ring, so that the second rod body is connected to the second driving member 504 . For example, when the second driving member 504 includes a second cylinder, the fixed end of the second cylinder is fixed to the side shaping portion, and an annular groove can be provided on the outer circumferential surface of the telescopic end of the second cylinder to form a snap ring, and the notch groove 5051 snaps into the circular ring. In the ring groove, the torque of the second cylinder can be transmitted to the second rod body.

For example, when the second rod body is connected to the top surface shaping part, one end of the second rod body connected to the top surface shaping part is provided with a connecting angle plate 505. The connecting angle plate 505 includes a vertical plate (extending along the second direction) and a horizontal plate. , the horizontal plate is perpendicular to the vertical plate, the horizontal plate is connected to the fixed plate 501 of the top surface shaping part, and the second rod body is connected to the vertical plate to realize the connection of the second rod body and the fixed plate 501. The horizontal and vertical panels can be connected by connecting ribs. The connection angle plate 505 can increase the connection strength between the second rod body and the fixed plate 501.

The second rod body is penetrated through the first through hole. On the one hand, the second driving member 504 and the top surface shaping part can be connected to each other. On the other hand, the first through hole limits the stroke of the second rod body, thereby also It plays the role of limiting the stroke of the top surface shaping part.

Please refer to Figure 5. According to some embodiments of the present application, optionally, the battery module shaping mechanism also includes: a first driving part 604, installed on the base 40, for driving the side shaping part to move in the first direction; a second driving part 504, installed In the side shaping part, it is used to drive the top surface shaping part to move in the second direction.

The first driving member 604 and the second driving member 504 may be driving components with reciprocally movable movable ends. For example, the first driving member 604 and the second driving member 504 may be a rack-and-pinion structure. The rack-and-pinion structure may include gears, When the rack and motor drive the side shaping part to move through the rack and pinion structure, the gear can be rotationally connected to the base 40, and the rack can be slidably connected to the base 40. The gear rack meshes, and the side shaping part is arranged on the rack, and the motor The output end is coaxially connected to the gear. When the gear rotates, the rack is driven by the gear to move in the first direction; when the top surface shaping part is driven to move through the gear and rack structure, the gear is rotationally connected to the side shaping part. The rack is slidingly connected to the side shaping part, and the gear and rack mesh. The fixed plate 501 is arranged on the rack. The output end of the motor is coaxially connected to the gear. When the gear rotates, the rack is driven along the second axis by the gear. direction movement. The first driving member 604 and the second driving member 504 can also be cylinders. When driving the side shaping part to move, the fixed end of the cylinder is set on the base 40 and the telescopic end is connected to the side shaping part. When driving the top surface shaping part to move, the cylinder's The fixed end is connected to the side shaping part, and the telescopic end of the cylinder is connected to the fixed plate 501.

The first driving member 604 is used to drive the side shaping portion to move and generate pressure on the side of the battery module 20 , and the second driving member 504 is used to drive the top surface shaping portion to move and generate pressure on the top surface of the battery module 20 . .

Please continue to refer to Figure 5. According to some embodiments of the present application, optionally, the first driving member 604 and the side pressure plate 601 are respectively provided on both sides of the base 40 .

The two sides of the base 40 refer to the side of the base 40 on which the side pressure plate 601 is provided and the back side of the side where the side pressure plate 601 is provided. For example, when the base 40 is set horizontally, the first direction is the horizontal direction, the second square direction is the vertical direction, and the side shaping portion is disposed on the top of the base 40, at this time, the two sides of the base 40 refer to the upper and lower sides of the base 40. side.

The structure in which the first driving member 604 and the side pressure plate 601 are arranged on separate sides improves the space utilization of the side of the base 40 where the side pressure plate 601 is installed; and the separate arrangement facilitates maintenance personnel to perform inspection and maintenance on the first driving member 604 and the side pressure plate 601 respectively. Improve work efficiency.

Please continue to refer to Figure 2 and Figure 5. According to some embodiments of the present application, optionally, the base 40 is provided with There is a second through hole 401. The battery module shaping mechanism also includes a first connecting member 605. The first connecting member 605 passes through the second through hole 401 to connect the first driving member 604 and the side pressure plate 601.

The first connecting member 605 plays a transmission role so that the torque of the first driving member 604 can be transmitted to the side shaping part.

The first connecting member 605 may be a first rod that passes through the second through hole 401. For example, when the first driving member 604 is a first cylinder, one end of the first rod is connected to the side shaping part and the other end is connected to the side shaping part. Connected to the telescopic end of the first cylinder.

Optionally, the telescopic end of the first cylinder and the first rod body can be connected through a universal joint. The universal joint can eliminate the deviation between the movement path of the telescopic end of the first cylinder and the movement path of the side shaping portion, even if the telescopic end of the first cylinder There is an angle between the movement route and the side shaping part relative to the movement route of the base 40, which can also drive the side shaping part to move.

Please continue to refer to Figure 2 and Figure 5. According to some embodiments of the present application, optionally, the battery module shaping mechanism further includes: a first guide rail 80, fixed to the base 40 and extending along the first direction, and the side shaping portion is slidably disposed on the first guide rail 80; The two guide rails 90 are fixed to the side shaping part and extend along the second direction, and the top shaping part is slidably disposed on the second guide rail 90 .

Extending the first guide rail 80 along the first direction means that the component slidably connected to the first guide rail 80 moves along the first direction;

The extension of the second guide rail 90 in the second direction means that the component slidably connected to the second guide rail 90 moves in the first direction; as mentioned above, the second driving member 504 is connected to the top surface shaping part through the second rod body, and the second rod body passes through The connection angle plate 505 is connected to the fixed plate 501. The connection angle plate 505 includes a vertical plate and a horizontal plate extending in the second direction. The vertical plate can be slidably matched with the side shaping part to realize the sliding connection of the fixed plate 501 with the side shaping part. the goal of.

The side shaping part is slidably provided on the first guide rail 80 and the top surface shaping part is slidably provided on the second guide rail 90. This means that the first guide rail 80 and the second guide rail 90 are respectively provided with a first slide block 801 and a second slide block 801. The slide block 901 connects the side shaping part to the first slide block 801 and the top surface shaping part to the second slide block 901, so that the side shaping part can be slidably arranged on the first guide rail 80 and the top surface shaping part can be slidably arranged. The purpose is to be slidably provided on the second guide rail 90 .

The first guide rail 80 realizes the purpose of sliding the side shaping part movably on the base 40, and the second guide rail 90 realizes the purpose of movably disposing the top surface shaping part on the side shaping part, and the two shaping parts are respectively connected with the two The guide rails cooperate to make the movement more precise. The first guide rail 80 and the second guide rail 90 can select appropriate models from the existing technology, and their structures will not be described again here.

Please continue to refer to Figure 2 and Figure 5. According to some embodiments of the present application, optionally, the side shaping part further includes a bottom plate 602 slidably disposed on the first guide rail 80 , and the side pressure plate 601 and the second driving member 504 are fixed to the bottom plate 602 .

As mentioned above, the side pressure plate 601 exerts pressure on the side of the battery module 20 to reshape the side of the battery module 20. On the one hand, the thickness of the side pressure plate 601 cannot be too small, otherwise it will be easily deformed due to insufficient rigidity. The thickness of the side pressure plate 601 should not be too large, otherwise the resistance to moving the side pressure plate 601 will be increased. However, if the side pressure plate 601 is directly connected to the first guide rail 80, due to the contact area between the side pressure plate 601 and the first slider 801 Small, and only one side of the side pressure plate 601 is connected to the first slider 801 , so that the connection strength between the side pressure plate 601 and the first guide rail 80 is weak.

Therefore, the bottom plate 602 is connected to the first slider 801 and the side pressure plate 601 is connected to the bottom plate 602. First, the connection strength between the side pressure plate 601 and the first guide rail 80 is increased. Secondly, on the one hand, if the side pressure plate 601 is used as a support, the second The force-bearing member of the driving member 504, if things go on like this, the side pressure plate 601 may deform, reducing the shaping effect. On the other hand, the side pressure plate 601 has a small area for fixing the second driving member 504, and the fixing effect is poor. Therefore, the bottom plate 602 also Can be used to install the second driver 504.

Please continue to refer to Figure 2 and Figure 5. According to some embodiments of the present application, optionally, the side shaping part also includes a reinforcing rib plate 603, which is connected to the bottom plate 602 and the side pressure plate 601.

The reinforcing ribs 603 increase the connection strength between the bottom plate 602 and the side pressure plate 601.

Multiple reinforcing ribs 603 can be provided, and the area and number of the multiple reinforcing ribs 603 can be set as needed. For example, near the middle of the side pressure plate 601, the area of the reinforcing ribs 603 can be larger to provide better support. Near the end of the side pressure plate 601, the area of the reinforcing rib 603 can be smaller, which improves the support effect while saving materials and reducing manufacturing costs.

Please continue to refer to Figure 2. According to some embodiments of the present application, optionally, the battery module shaping mechanism further includes a detection unit 30. The detection unit 30 is disposed on the side shaping part for detecting the position of the top shaping part.

In the top surface shaping part, the position of the fixing plate 501 relative to the side pressure plate 601 reflects the pressure of the fixing plate 501 on the battery cell 201. Therefore, the user can detect the position of the fixing plate 501 relative to the side pressure plate 601. Control the degree of shaping.

The position of the top surface shaping part is detected through the detection unit 30. The detection unit 30 may include multiple sensors. The battery module shaping mechanism may be provided with a processor. The sensors are electrically connected to the processor, and the fixed plate 501 is determined based on the data output by the processor. The location information can also be connected to the sensor with external processing equipment. Measuring the data through the sensor and outputting the data through the processor are disclosed in the prior art and will not be described again here.

For example, the sensor may be a distance sensor, and multiple sensors may be disposed at the first through hole, spaced apart along the second direction, and on the path where the second rod moves relative to the side pressure plate 601. When the second rod passes the sensor , the sensor readings can change significantly, improving the accuracy of judgment.

Please continue to refer to Figure 2 and Figure 5. According to some embodiments of the present application, optionally, two side shaping parts are provided, the two side shaping parts are arranged oppositely along the first direction, and a battery module placement area is formed between the two side shaping parts; the top surface shaping part There are two provided and correspond to the side shaping parts one-to-one, and each top surface shaping part is movably arranged on the corresponding side shaping part along the second direction.

The battery module placement area is used to place the battery module 20 to be reshaped. The battery module 20 can be placed on the base 40 or supported by other components so that the battery module 20 is between the two side reshaping parts. Optionally, the battery module placement area is located in the middle of the two side shaping parts, so that the movement displacement of the two side shaping parts is the same, which facilitates control.

On the one hand, there are two side shaping parts. When the battery module 20 is placed between the two side shaping parts, both sides of the battery module 20 can be shaped at the same time, which increases the shaping efficiency; on the other hand, the top The surface shaping part is divided into two groups, which reduces the load of the second driving member 504, increases the service life of the second driving member 504, and further improves the reliability of the battery module shaping mechanism.

Please refer to Figures 4 and 5. Figure 4 is a schematic side structural diagram of the battery module shaping mechanism of some embodiments of the present application, and Figure 5 is a schematic front structural diagram of the battery module shaping mechanism of some embodiments of the present application. According to some embodiments of the present application, optionally, the battery module shaping mechanism further includes a moving part. The moving part includes a contact plate 701, a third driving member 703, and a third guide rail 702. The third guide rail 702 is provided on the base 40, Extending along the third direction, the third direction is perpendicular to the first direction, the abutment plate 701 is slidably connected to the third guide rail 702, and the third driving member 703 is installed on the base 40 for driving the abutment plate 701 along the third direction. move.

The third direction is the direction pointed by the X-axis in the figure.

On the one hand, the abutting plate 701 can be used to limit the position of the battery module 20 relative to the side shaping parts when the battery module 20 is placed between the two side shaping parts, so that the side pressure plates 601 of the two side shaping parts move toward the battery module. When the group 20 moves, it can contact the battery module 20. On the other hand, the abutting plate 701 can also be used for loading and unloading the battery module 20. Specifically, under the action of the third driving member 703, the abutting plate 701 It can move relative to the base 40 , that is, the contact plate 701 can either push the battery module 20 between the two side shaping parts, or push the battery module 20 out from between the two side shaping parts.

Optionally, the third driving member 703 is a third cylinder, the fixed end of the third cylinder is connected to the base 40 , and the telescopic end of the third cylinder is connected to the abutment plate 701 . The base 40 may be provided with a third through hole, and the telescopic end of the third cylinder is connected to the abutment plate 701 through a third connector 704 .

According to some embodiments of the present application, referring to Figures 2 to 6, the present application provides a battery module shaping mechanism, including: a base 40; two side shaping parts, the two side shaping parts are arranged oppositely along the first direction, And the two side shaping parts are movably arranged on the base 40 along the first direction. The side shaping parts are used to flatten the sides of the battery module 20; the top shaping part is movably arranged on the side shaping parts along the second direction. part, the second direction is perpendicular to the first direction, and the top surface shaping part is used to flatten the top surface of the battery module 20 .

The side shaping part includes a bottom plate 602 and a side pressure plate 601. The bottom plate 602 is connected to the side pressure plate 601. The bottom plate 602 and the side pressure plate 601 are perpendicular. The thickness direction of the bottom plate 602 is parallel to the second direction. The thickness direction of the side pressure plate 601 is parallel to the first direction. A reinforcing rib 603 is connected between the bottom plate 602 and the side pressure plate 601 .

The battery module shaping mechanism also includes: three first guide rails 80, which are all fixed to the base 40 and extend in parallel along the first direction; the bottom plate 602 is slidably disposed on the three first guide rails 80; a first cylinder, a cylinder of the first cylinder The body is connected to the base 40, and the base 40 is provided with a second through hole 401. The telescopic end of the first cylinder is connected to the bottom plate 602 through the first rod body. The side shaping part and the first cylinder are respectively provided on different sides of the base 40; four The two guide rails 90 are fixed to the side pressure plate 601 and extend along the second direction.

The top surface shaping part includes a fixed plate 501 and a plurality of pressing units 503. Two second cylinders are provided on the bottom plate 602. The fixed plate 501 and a plurality of pressing units 503 are arranged on the side of the side pressing plate 601 close to the battery module 20 , the second cylinder is provided on the other side of the side pressure plate 601 away from the battery module 20. The side pressure plate 601 is provided with two first through holes, and two second guide rails 90 are provided at each through hole. The two second cylinders The telescopic ends are respectively connected to the fixed plate 501 through two second rods, and the two second rods are respectively inserted into the two first through holes.

Each second rod body is connected to the fixed plate 501 through two connecting angle plates 505. The connecting angle plates 505 include a vertical plate (extending along the second direction) and a horizontal plate. The horizontal plate is arranged vertically on the vertical plate, and the horizontal plate It is connected to the vertical plate through a connecting rib plate, the horizontal plate is connected to the fixed plate 501, the second rod body is connected to the vertical plate, the connecting angle plate 505 corresponds to the two first through holes one by one, and each vertical plate is slidably arranged. Two second leads at the corresponding first through holes Rail 90.

The fixed plate 501 is provided with a plurality of fixed blocks 502. The fixed blocks 502 are provided with screw holes. The pressing unit 503 is threadedly connected to the fixed block 502 through the screw holes. Two pressing units 503 are provided on one fixed block 502.

The battery module shaping mechanism in this application integrates the top shaping part into the side shaping part, making the structure more compact, reducing device complexity, and improving the reliability of the battery module shaping mechanism.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or substitutions do not deviate from the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present application. The scope shall be covered by the claims and description of this application. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any way. The application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims (15)

1. A battery module shaping mechanism, including:

   base;

   The side shaping part is movably provided on the base along the first direction, and the side shaping part is used to flatten the side of the battery module;

   A top surface shaping part is movably provided on the side shaping part along a second direction, the second direction is perpendicular to the first direction, and the top surface shaping part is used to adjust the top surface of the battery module To flatten.
2. The battery module shaping mechanism according to claim 1, wherein the top surface shaping part includes a fixing plate and a plurality of pressing units, the fixing plate is movably arranged on the side shaping part, and the plurality of pressing units The pressing units are arranged at intervals on the fixed plate.
3. The battery module shaping mechanism according to claim 2, wherein the pressing unit is detachably provided on the fixing plate.
4. The battery module shaping mechanism according to claim 2 or 3, wherein the plurality of pressing units are arranged in groups of two, and the pressing units in the same group correspond to the two electrode terminals of the same battery cell.
5. The battery module shaping mechanism according to any one of claims 2 to 4, wherein the pressing unit includes a guide post, a contact head and an elastic member, the guide post is provided on the fixed plate, and the contact The head is slidably connected to the guide post, one end of the elastic member is connected to the guide post, and the other end of the elastic member is connected to the contact head.
6. The battery module shaping mechanism according to any one of claims 1 to 5, wherein the battery module shaping mechanism further includes:

   A first driving member, installed on the base, is used to drive the side shaping part to move in the first direction;

   A second driving member is installed on the side shaping part and is used to drive the top shaping part to move in the second direction.
7. The battery module shaping mechanism according to claim 6, wherein the side shaping part includes a side pressure plate for contacting the side of the battery module, and the top surface shaping part and the third Two driving parts are respectively arranged on both sides of the side pressure plate.
8. The battery module shaping mechanism according to claim 7, wherein the side pressure plate is provided with a first through hole, the battery module shaping mechanism further includes a second connecting piece, and the second connecting piece passes through the A first through hole is used to connect the second driving member and the top surface shaping part.
9. The battery module shaping mechanism according to claim 7 or 8, wherein the first driving member and the side pressure plate are respectively provided on both sides of the base.
10. The battery module shaping mechanism according to claim 9, wherein the base is provided with a second through hole, the battery module shaping mechanism further includes a first connecting piece, and the first connecting piece passes through the third through hole. Two through holes are used to connect the first driving member and the side pressure plate.
11. The battery module shaping mechanism according to any one of claims 7-10, wherein the battery module shaping mechanism further includes:

    A first guide rail is fixed to the base and extends along the first direction, and the side shaping portion is slidably provided on the first guide rail;

    A second guide rail is fixed to the side shaping part and extends along the second direction, and the top shaping part is slidably disposed on the second guide rail.
12. The battery module shaping mechanism according to claim 11, wherein the side shaping part further includes a bottom plate, the bottom plate is slidably disposed on the first guide rail, and the side pressure plate and the second driving member are fixed on the bottom plate.
13. The battery module shaping mechanism according to claim 12, wherein the side shaping part further includes a reinforcing rib plate, the reinforcing rib plate is connected to the bottom plate and the side pressure plate.
14. The battery module shaping mechanism according to any one of claims 1-13, wherein the battery module shaping mechanism further includes:

    A detection unit is provided on the side shaping part and is used for detecting the position of the top shaping part.
15. The battery module shaping mechanism according to any one of claims 1 to 14, wherein there are two side shaping parts, the two side shaping parts are arranged oppositely along the first direction, and the two side shaping parts are arranged oppositely along the first direction. A battery module placement area is formed between the side shaping parts;

    There are two top surface shaping parts and they correspond to the side shaping parts one by one. Each of the top surface shaping parts is movably arranged on the corresponding side shaping part along the second direction.