Pressurizing and heating device and battery production line

Abstract

The utility model discloses a pressurizing and heating device and a battery production line, and relates to the technical field of battery production equipment.The pressurizing and heating device comprises a base and a pressurizing and heating assembly; the pressurizing and heating assembly comprises at least two pressurizing structures which are oppositely arranged, a placing space is formed between the two pressurizing structures, and the placing space is configured to be used for placing a product; the two pressurizing structures can move towards each other or in opposite directions so as to compress or release a product; air bag heating films are arranged on the opposite sides of the two pressurizing structures, cavities are formed between the air bag heating films and the pressurizing structures, and when the cavities are in an inflated state, the air bag heating films deform and are configured to be attached to the side plate of the product. According to the battery module, the problems of non-uniform heating and non-uniform stress of glue on the side plates can be improved, so that the overall strength of the battery module is improved.

Description

Technical Field

[0001] This application relates to the field of battery production equipment technology, and in particular to a pressurized heating device and a battery production line. Background Technology

[0002] With the development of power battery technology, higher requirements have been placed on the structural strength of the battery module layer. Typically, a series of reinforcement structures, such as mounting and reinforcing ribs, have been added to the side plates of the battery module.

[0003] In related technologies, a pressure heating device is usually used to pressurize and heat the side panels of the battery module. Since a series of reinforcing structures such as mounting brackets and reinforcing ribs are added to the side panels of the battery module, the pressure heating device is usually designed to avoid these reinforcing structures in order to pressurize and heat the side panels. However, the design of the avoidance area reduces the area of ​​the side panels that can be pressurized and heated, resulting in uneven heating and stress of the adhesive on the side panels, which affects the curing strength and makes them prone to springback, resulting in insufficient overall strength of the battery module. Utility Model Content

[0004] In view of the above problems, this application provides a pressurized heating device and a battery production line, which aims to improve the problem of uneven heating and uneven stress on the adhesive on the side plate, so as to improve the overall strength of the battery module.

[0005] This application provides a pressure heating device, including a base and a pressure heating assembly; the pressure heating assembly includes two opposing pressure structures, with a placement space formed between at least two pressure structures, the placement space being configured to place a product; the two pressure structures can move toward each other or in opposite directions to press or release the product; an airbag heating film is provided on one side of the two pressure structures facing each other, a cavity is formed between the airbag heating film and the pressure structure, the cavity is in an inflated state, the airbag heating film deforms and is configured to adhere to the side plate of the product.

[0006] In the technical solution of this application embodiment, the product is first placed in the placement space between two pressurizing structures and supported by a base; then, the two pressurizing structures are controlled to move towards each other to press the side plates on both sides of the product respectively; since an airbag heating film is provided on the side of the two pressurizing structures facing each other, a cavity is formed between the airbag heating film and the pressurizing structure. When air is injected into the cavity between the pressurizing structure and the airbag heating film, the airbag heating film will deform and extend under the action of air pressure, so that the airbag heating film can fully fit the side plate of the product, which can adapt to side plates with different structures. The extension of the airbag heating film can achieve full coverage of the side plate, so as not to reduce the area of ​​pressurizing and heating the side plate. This can effectively improve the problem of uneven heating and uneven stress of the adhesive on the side plate, thereby improving the overall strength of the battery module.

[0007] In some embodiments, the pressurizing structure includes a driving member and a pressurizing member. The driving member is disposed on the base, and the pressurizing member is drively connected to the driving member. The two driving members drive the two pressurizing members to move toward each other or in opposite directions to press or release the product. The airbag heating membrane is disposed on the side of the pressurizing member away from the driving member. This design allows the two driving members to precisely drive the two pressurizing members to move toward each other or in opposite directions, thereby precisely controlling the pressure applied by the two pressurizing members to the two side plates of the product.

[0008] In some embodiments, an airflow channel is formed within the pressurizing member, and an inflation hole is provided on the side of the pressurizing member near the airbag heating membrane; the inflation hole connects the airflow channel and the cavity, and the airflow channel is configured to communicate with an external inflation device. This design allows an external inflation device to inflate the airflow channel of the pressurizing member, and then inflate the cavity between the pressurizing member and the airbag heating membrane through the inflation hole, enabling smooth airflow into the cavity without the need for an inflation hole in the airbag heating membrane, thus achieving an intact design for the airbag heating membrane.

[0009] In some embodiments, the periphery of the airbag heating membrane is provided with a flange extending toward the pressure member. The flange is connected to the pressure member, and the airbag heating membrane, the flange, and the pressure member are arranged to form a cavity. With this design, the airbag heating membrane is connected to the pressure member by using the flange, which allows a better cavity to be formed between the airbag heating membrane and the pressure member.

[0010] In some embodiments, the airbag heating film includes a flexible lower film and a flexible upper film stacked sequentially, with a heating module sandwiched between the flexible lower film and the flexible upper film. The flexible lower film is positioned close to the pressurization structure. This design, by sandwiching the heating module between the flexible lower film and the flexible upper film, not only allows the flexible lower film and the flexible upper film to deform and stretch during inflation, enabling them to fully adhere to the side panel of the product, but also protects the heating module, thereby extending its service life.

[0011] In some embodiments, multiple heating modules are provided, and the array of multiple heating modules is distributed between the flexible lower film and the flexible upper film. This design allows for the heating of different areas during use, and enables individual control of the heating modules corresponding to different areas, thereby precisely controlling the temperature of different areas and improving the curing effect of the adhesive on the product side panels.

[0012] In some embodiments, a pressure sensor is also sandwiched between the flexible lower membrane and the flexible upper membrane, with the pressure sensor and the heating module spaced apart. This design, by placing a pressure sensor between the flexible lower membrane and the flexible upper membrane, allows for precise detection and control of the clamping force on the product's side panels to meet the product's varying pressure requirements.

[0013] In some embodiments, multiple pressure sensors are provided, and an array of multiple pressure sensors is distributed between the flexible lower membrane and the flexible upper membrane. This design allows for pressure monitoring of different areas during use, and enables individual control of the pressure sensors corresponding to different areas to precisely control the pressure in different regions, further improving the curing effect of the adhesive on the product's side panels.

[0014] In some embodiments, the pressurizing heating device further includes a clamping mechanism disposed on the base, which is configured to clamp or release the top of the product. This design, by clamping the product onto the base before pressurizing and heating the side panels, prevents the product from shifting position during the pressurizing and heating process. Therefore, using a clamping mechanism for clamping improves the accuracy of subsequent pressurizing and heating of the product's side panels.

[0015] In some embodiments, the clamping mechanism includes a support member, a driver, and a contoured pressure plate; the support member is disposed on a base; the driver is disposed on the support member; the contoured pressure plate is driven to the driver, and the driver drives the contoured pressure plate to rise and fall. This design allows for precise control of the rising and falling distance of the contoured pressure plate under the action of the driver, thus adapting to products of different heights. It also enables precise downward pressure to control key dimensions of the product. Furthermore, by using a contoured pressure plate to clamp the top of the product, a customized design based on the product's end plate and battery cell terminal position can be implemented, adapting to the shape of the product's top to improve the clamping effect.

[0016] In some embodiments, two pressurizing structures are defined and spaced apart along a first direction, and at least two pressing mechanisms are provided, which are spaced apart along the first direction. This design, by employing at least two pressing mechanisms to simultaneously press the top of the product in the first direction, increases the pressing area on the top of the product, thereby improving the pressing balance and preventing warping during product pressing, thus enhancing the pressing effect on the product.

[0017] In some embodiments, the base is provided with a slide rail extending along a first direction, and the clamping mechanism is slidably connected to the slide rail. This design allows the position of the clamping mechanism to be adjusted according to different product sizes through the sliding cooperation between the clamping mechanism and the slide rail, thereby achieving compatibility with different product sizes.

[0018] In some embodiments, the pressure heating device further includes a support block disposed on the base and configured to support the end plate of the product. This design allows the end plate to be supported before pressure heating, preventing it from being suspended and ensuring it doesn't loosen during the pressure heating process. Therefore, using a support block further improves the accuracy of subsequent pressure heating of the product's side plate.

[0019] In some embodiments, two pressurizing structures are defined and spaced apart along a first direction, with at least two support blocks provided in the first direction. This design allows at least two support blocks to simultaneously support the end plates of the product when it is placed in the placement space, improving the balance of support for the product's end plates and thus enhancing the support effect.

[0020] In some embodiments, the base is provided with a plurality of positioning holes spaced apart along a first direction, and the support block is selectively inserted into one of the positioning holes. This design allows the position of the support block to be adjusted according to the width of different products, so that the support block can be selectively inserted into the corresponding positioning hole, thereby matching products of different widths and improving the applicability.

[0021] In some embodiments, the support blocks are provided in at least two sets, which are spaced apart along a second direction and disposed on both sides of the placement space. The second direction is set at an angle to the first direction, and the at least two sets of support blocks are configured to support the end plates at both ends of the product respectively. This design, by providing at least two sets of support blocks on both sides of the placement space, allows at least two sets of support blocks to support the end plates at both ends of the product respectively, thereby further improving the support effect on the end plates of the product.

[0022] In some embodiments, the base is provided with a soft support plate, which is configured to support the product. This design allows the product to be placed on the soft support plate for support. When subjected to downward pressure, the soft support plate acts as a buffer, protecting the product and preventing damage.

[0023] This application also provides a battery production line, including the aforementioned pressurized heating device.

[0024] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of an embodiment of the pressurized heating device of this application;

[0027] Figure 2 This is an exploded view of an embodiment of the pressurized heating device of this application;

[0028] Figure 3 This is a partially exploded view of an embodiment of the pressurized heating device of this application;

[0029] Figure 4 This is a partial structural diagram of the pressurizing structure in one embodiment of the pressurizing heating device of this application;

[0030] Figure 5 This is a schematic diagram of the structure of the airbag heating membrane in one embodiment of the pressurized heating device of this application;

[0031] Figure 6 An exploded view of the airbag heating membrane in one embodiment of the pressurized heating device of this application;

[0032] Figure 7 This is a cross-sectional view of a location of the airbag heating membrane in one embodiment of the pressurized heating device of this application;

[0033] Figure 8 This is a cross-sectional view of another location of the airbag heating membrane in one embodiment of the pressurized heating device of this application.

[0034] Explanation of icon numbers:

[0035]

[0036] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0037] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0038] Unless otherwise defined, 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 pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0039] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0040] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0041] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0042] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0043] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0044] With the development of power battery technology, higher requirements have been placed on the structural strength of the battery module layer. Typically, a series of reinforcement structures, such as mounting and reinforcing ribs, have been added to the side plates of the battery module.

[0045] In related technologies, a pressure heating device is usually used to pressurize and heat the side panels of the battery module. Since a series of reinforcing structures such as mounting brackets and reinforcing ribs are added to the side panels of the battery module, the pressure heating device is usually designed to avoid these reinforcing structures in order to pressurize and heat the side panels. However, the design of the avoidance area reduces the area of ​​the side panels that can be pressurized and heated, resulting in uneven heating and stress of the adhesive on the side panels, which affects the curing strength and makes them prone to springback, resulting in insufficient overall strength of the battery module.

[0046] To address the aforementioned problems, this application proposes a pressure heating device 100, which aims to improve the uneven heating and stress distribution of the adhesive on the side plate, thereby enhancing the overall strength of the battery module. The following detailed description, in conjunction with specific accompanying drawings and embodiments, further illustrates this approach.

[0047] Please see Figures 1 to 4 In one embodiment of this application, the pressurizing heating device 100 includes a base 10 and a pressurizing heating assembly 20; the pressurizing heating assembly 20 includes at least two opposing pressurizing structures 21, wherein a placement space a is formed between the two pressurizing structures 21, and the placement space a is configured to place a product; the two pressurizing structures 21 can move toward each other or in opposite directions to press or release the product; an airbag heating film 213 is provided on one side of the two pressurizing structures 21 facing each other, and a cavity b is formed between the airbag heating film 213 and the pressurizing structure 21, the cavity b is in an inflated state, and the airbag heating film 213 is deformed and configured to adhere to the side plate of the product.

[0048] In this embodiment, the base 10 is used to install and fix the pressurized heating component 20 and to support the product. The product can be placed directly on the base 10, or a soft support plate 13 can be provided on the base 10 to place the product on the soft support plate 13.

[0049] The two pressurizing structures 21 of the pressurizing heating assembly 20 can be spaced apart on the base 10 along a first direction A, so that a placement space a for placing the product is formed between the two pressurizing structures 21. Optionally, the pressurizing structures 21 can be driven manually or mechanically, so that the two pressurizing structures 21 can move towards each other or in opposite directions.

[0050] The airbag heating membrane 213 refers to a membrane material with heating function and extensibility. During the process of blowing air into the cavity b between the airbag heating membrane 213 and the pressure member 212, the airbag heating membrane 213 can deform and extend to adapt to the side plate with different structure. There is no need to avoid the reinforcing structure on the side plate, so as not to reduce the area of ​​pressurizing and heating the side plate.

[0051] In summary, in the technical solution of this application embodiment, the product is first placed in the placement space a between the two pressurizing structures 21, and supported by the base 10; then, the two pressurizing structures 21 are controlled to move towards each other to press the side plates on both sides of the product respectively; since an airbag heating film 213 is provided on the side of the two pressurizing structures 21 facing each other, a cavity b is formed between the airbag heating film 213 and the pressurizing structure 21. When air is injected into the cavity b between the pressurizing structure 21 and the airbag heating film 213, the airbag heating film 213 will deform and extend under the action of air pressure, so that the airbag heating film 213 can fully adhere to the side plate of the product, which can adapt to side plates with different structures, so as to achieve full coverage of the side plate through the extension of the airbag heating film 213, thereby not reducing the area of ​​pressurizing and heating the side plate, effectively improving the problem of uneven heating and uneven stress of the adhesive on the side plate, thereby improving the overall strength of the battery module.

[0052] Please see Figure 1 , Figure 4 In one embodiment of this application, the pressurizing structure 21 includes a driving member 211 and a pressurizing member 212. The driving member 211 is disposed on the base 10, and the pressurizing member 212 is throttle connected to the driving member 211. The two driving members 211 respectively drive the two pressurizing members 212 to move toward each other or in opposite directions to press or release the product. The airbag heating film 213 is disposed on the side of the pressurizing member 212 away from the driving member 211.

[0053] The drive component 211 can be directly mounted on the base 10, or it can be mounted on the base 10 via the mounting plate 214. Optionally, the drive component 211 can be a linear cylinder, a rotary cylinder with a gear and rack structure, or a rotary cylinder with a lead screw and nut structure, etc., as long as it can smoothly drive the two pressure components 212 to move in opposite directions. Furthermore, one drive component 211 can be used to drive the pressure component 212, or at least two drive components 211 can be used to drive the pressure component 212. In some embodiments, to improve the pressure applied to the product by the pressure component 212 and its uniformity, at least two drive components 211 can be used to drive the pressure component 212.

[0054] The pressure member 212 is used to apply a clamping force to the side plate of the product under the drive of the drive member 211. Optionally, the pressure member 212 can be a pressure plate, pressure block, pressure sheet or some other formed structural component.

[0055] This design allows two driving components 211 to precisely drive two pressure components 212 to move in opposite directions or towards each other, thereby precisely controlling the pressure applied by the two pressure components 212 to the two side panels of the product.

[0056] Please see Figure 2 , Figure 4 In one embodiment of this application, an airflow channel is formed in the pressurizing member 212, and an inflation hole 2121 is provided on the side of the pressurizing member 212 near the airbag heating film 213; the inflation hole 2121 connects the airflow channel and the cavity b, and the airflow channel is configured to communicate with an external inflation device.

[0057] An airflow channel is formed inside the pressurizing member 212, and an inflation port 2121 is formed on the side of the pressurizing member 212 near the airbag heating membrane 213. When the external inflation device is working, air can be injected into the airflow channel so that airflow flows from the inflation port 2121 to the cavity b between the pressurizing member 212 and the airbag heating membrane 213. In some embodiments, in order to facilitate the communication between the airflow channel of the pressurizing member 212 and the external inflation device, a mounting hole can be provided on the top of the pressurizing member 212, and an air pipe 2122 can be provided at the mounting hole to connect to the external inflation device.

[0058] This design allows for the use of an external inflation device to inflate the airflow channel of the pressurizing component 212, and then to inflate the cavity b between the pressurizing component 212 and the airbag heating membrane 213 through the inflation hole 2121. This enables the airflow to smoothly inflate the cavity b, and eliminates the need to create air holes on the airbag heating membrane 213 for inflation, thus achieving a complete design for the airbag heating membrane 213.

[0059] Please see Figure 2 In one embodiment of this application, the periphery of the airbag heating film 213 is provided with a flange 213a extending toward the pressure member 212. The flange 213a is connected to the pressure member 212, and the airbag heating film 213, the flange 213a and the pressure member 212 are arranged to form a cavity b.

[0060] The flange 213a refers to the structure formed by folding the edge of the airbag heating film 213 towards the pressure member 212. Optionally, the structure of the flange 213a can be the same as or different from the structure of the airbag heating film 213. In some embodiments, in order to enable the flange 213a to also have heating function and extensibility, so that the flange 213a can also be attached to the side panel of the product, the structure of the flange 213a can be kept consistent with the structure of the airbag heating film 213. In practical applications, the flange 213a can be connected to the pressure member 212 by means of bonding, heat fusion, etc.

[0061] With this design, the airbag heating membrane 213 is connected to the pressure member 212 by means of a flange 213a, so that the airbag heating membrane 213 and the pressure member 212 can form a cavity b better.

[0062] Please see Figures 5 to 8 In one embodiment of this application, the airbag heating film 213 includes a flexible lower film 2131 and a flexible upper film 2132 stacked in sequence, a heating module 2133 sandwiched between the flexible lower film 2131 and the flexible upper film 2132, and the flexible lower film 2131 is disposed close to the pressurization structure 21.

[0063] Both the flexible lower membrane 2131 and the flexible upper membrane 2132 are stretchable membrane materials. Optionally, the materials of the flexible lower membrane 2131 and the flexible upper membrane 2132 can be the same or different, for example, they can be rubber, plastic, aluminum foil latex, etc. It should be noted that the flexible lower membrane 2131 is positioned closer to the pressure-applying structure 21 than the flexible upper membrane 2132; that is, the flexible upper membrane 2132 is located on the side of the flexible lower membrane 2131 away from the pressure-applying structure 21.

[0064] The heating module 2133 is a structural component with a heating function. Optionally, the heating method of the heating module 2133 may include resistance heating, electromagnetic induction heating, infrared heating, microwave heating, semiconductor heating, fluid heating, ultrasonic heating, etc. In some embodiments, in order to improve the installation reliability of the heating module 2133, a first mounting groove may be provided on the side of the flexible lower film 2131 near the flexible upper film 2132, so as to install the heating module 2133 in the first mounting groove and limit the heating module 2133 by means of the first mounting groove.

[0065] This design, by sandwiching the heating module 2133 between the flexible lower membrane 2131 and the flexible upper membrane 2132, not only allows the flexible lower membrane 2131 and the flexible upper membrane 2132 to deform and extend during inflation, enabling them to fully adhere to the side panel of the product, but also protects the heating module 2133, thereby extending its service life.

[0066] Of course, in other embodiments, the use of the flexible upper membrane 2132 can be omitted, so that the heating module 2133 is directly exposed on one side of the flexible lower membrane 2131.

[0067] Please see Figure 6 , Figure 7 In one embodiment of this application, multiple heating modules 2133 are provided, and the multiple heating modules 2133 are arrayed between the flexible lower membrane 2131 and the flexible upper membrane 2132.

[0068] This design, with multiple heating modules 2133 arranged in an array, can meet the heating needs of different areas during use. It can also individually control the heating modules 2133 corresponding to different areas to precisely control the temperature of different areas and improve the curing effect of the adhesive on the side panel of the product.

[0069] In some embodiments, multiple heating modules 2133 may be distributed in a dot matrix pattern between the flexible lower membrane 2131 and the flexible upper membrane 2132, so that the multiple heating modules 2133 can be more evenly distributed in each region between the flexible lower membrane 2131 and the flexible upper membrane 2132, thereby achieving temperature control in each region.

[0070] Please see Figure 6 , Figure 8 In one embodiment of this application, a pressure sensor 2134 is also sandwiched between the flexible lower membrane 2131 and the flexible upper membrane 2132, and the pressure sensor 2134 and the heating module 2133 are distributed at intervals.

[0071] The pressure sensor 2134 can convert physical pressure signals into measurable electrical signals to monitor the clamping force of the pressure member 212 on the product in real time. In some embodiments, to improve the installation reliability of the pressure sensor 2134, a second mounting groove can be provided on the side of the flexible lower membrane 2131 near the flexible upper membrane 2132 to install the pressure sensor 2134 in the second mounting groove, thereby limiting the pressure sensor 2134.

[0072] This design, by setting a pressure sensor 2134 between the flexible lower membrane 2131 and the flexible upper membrane 2132, allows for precise detection and control of the clamping force on the product's side panel to meet the product's different pressure requirements.

[0073] Please see Figure 6 , Figure 8 In one embodiment of this application, a plurality of pressure sensors 2134 are provided, and an array of the plurality of pressure sensors 2134 is distributed between the flexible lower membrane 2131 and the flexible upper membrane 2132.

[0074] This design, with multiple pressure sensors 2134 distributed in an array, can monitor the pressure in different areas during use. It can also control the pressure sensor 2134 corresponding to different areas individually to accurately control the pressure in different areas, thereby further improving the curing effect of the adhesive on the side panel of the product.

[0075] In some embodiments, multiple pressure sensors 2134 may be distributed in a dot matrix between the flexible lower membrane 2131 and the flexible upper membrane 2132, so that the multiple pressure sensors 2134 can be more evenly distributed in each region between the flexible lower membrane 2131 and the flexible upper membrane 2132, thereby achieving pressure control in each region.

[0076] Please see Figures 1 to 3 In one embodiment of this application, the pressurizing heating device 100 further includes a pressing mechanism 30, which is disposed on the base 10 and is configured to press or release the top of the product.

[0077] The clamping mechanism 30 can clamp or release the top of the product. When the clamping mechanism 30 clamps the top of the product, it can press the product onto the base 10 to position the product in the vertical direction.

[0078] This design allows the product to be pressed onto the base 10 by the pressing mechanism 30 before the side panel is pressurized and heated. This prevents the product from shifting position during the pressing and heating process. Therefore, the pressing mechanism 30 can improve the accuracy of the subsequent pressing and heating of the side panel.

[0079] Please see Figure 2 , Figure 3 In one embodiment of this application, the pressing mechanism 30 includes a support member 31, a driver 32, and a contoured pressure plate 33; the support member 31 is disposed on the base 10; the driver 32 is disposed on the support member 31; the contoured pressure plate 33 is throttle connected to the driver 32, and the driver 32 drives the contoured pressure plate 33 to rise and fall.

[0080] The support member 31 is a supporting structure for mounting and fixing the driver 32 and the contour pressure plate 33, and is fixedly mounted on the base 10. Optionally, the support member 31 can be an arch-shaped, column-shaped, or some other shape.

[0081] The actuator 32 can be a linear cylinder, a rotary cylinder with a gear and rack mechanism, or a rotary cylinder with a lead screw and nut mechanism, etc., as long as it can smoothly drive the contour plate 33 to rise or fall in the housing. Furthermore, one actuator 32 can be used to drive the contour plate 33 to rise and fall, or at least two actuators 32 can be used. In some embodiments, to improve the pressure applied by the contour plate 33 to the product and its uniformity, at least two actuators 32 can be used to drive the contour plate 33 to rise and fall.

[0082] This design, under the action of the driver 32, can precisely control the lifting distance of the contour plate 33, thereby adapting to products of different heights. At the same time, it can achieve precise pressing to control the key dimensions of the product. Furthermore, by using the contour plate 33 to press the top of the product, a customized design can be made according to the product end plate and the position of the battery cell terminal, which can adapt to the shape of the top of the product to improve the pressing effect on the product.

[0083] In some embodiments, the contour plate 33 can be detachably connected to the driver 32, so that different contour plates 33 can be replaced according to different product structures to adapt to products with different structures.

[0084] Please see Figures 1 to 3 In one embodiment of this application, two pressurizing structures 21 are defined to be distributed at intervals along a first direction A, and at least two pressing mechanisms 30 are provided, with at least two pressing mechanisms 30 distributed at intervals along the first direction A.

[0085] This design, by employing at least two pressing mechanisms 30 to simultaneously press the top of the product in the first direction A, can increase the pressing area on the top of the product, thereby improving the pressing balance of the product and avoiding the problem of lifting when pressing the product, thus improving the pressing effect of the product.

[0086] Please see Figures 1 to 3 In one embodiment of this application, the base 10 is provided with a slide rail 11 extending along a first direction A, and the pressing mechanism 30 is slidably connected to the slide rail 11.

[0087] This design allows the position of the clamping mechanism 30 to be adjusted according to the different sizes of the product through the sliding cooperation between the clamping mechanism 30 and the slide rail 11, so as to achieve compatibility with different product sizes.

[0088] Please see Figures 1 to 3 In one embodiment of this application, the pressurized heating device 100 further includes a support block 40, which is disposed on the base 10 and configured to position the end plate of the product.

[0089] Support block 40 refers to a support structure that can abut against the end plate of the product to achieve a mating fit. In practical applications, support block 40 can be used to support one end of the product's end plate, or support block 40 can be used to support both end plates of the product.

[0090] This design allows the end plate of the product to be supported by the support block 40 before the side plate of the product is pressurized and heated, thus preventing the end plate of the product from being suspended in the air. This also prevents the end plate of the product from loosening during the pressurization and heating process. Therefore, the support block 40 can further improve the accuracy of the subsequent pressurization and heating of the side plate of the product.

[0091] Please see Figures 1 to 3 In one embodiment of this application, two pressurizing structures 21 are defined to be distributed at intervals along a first direction A, and at least two support blocks 40 are provided on the first direction A.

[0092] With this design, when the product is placed in the placement space a, at least two support blocks 40 can be used to simultaneously support the end plate of the product, thereby improving the balance of the support for the end plate and thus enhancing the support effect of the end plate.

[0093] Please see Figure 2 , Figure 3 In one embodiment of this application, the base 10 is provided with a plurality of positioning holes 12 spaced apart along the first direction A, and the support block 40 is selectively inserted into one of the positioning holes 12.

[0094] In this embodiment, the cooperation between the support block 40 and the positioning hole 12 is similar to the structure of a pin and a socket, which enables the support block 40 to be quickly disassembled to change its position.

[0095] This design allows the position of the support block 40 to be adjusted according to the width of different products, so that the support block 40 can be selectively inserted into the corresponding positioning hole 12, thereby matching products of different widths and improving the applicability.

[0096] Please see Figure 2 , Figure 3 In one embodiment of this application, the support block 40 is provided with at least two sets, the at least two sets of support blocks 40 are distributed at intervals along the second direction B and are respectively disposed on both sides of the placement space a, the second direction B is set at an angle to the first direction A, and the at least two sets of support blocks 40 are configured to support the end plates at both ends of the product respectively.

[0097] This design, by providing at least two sets of support blocks 40 on both sides of the placement space a, can support the end plates at both ends of the product, thereby further improving the support effect on the end plates of the product.

[0098] Please see Figures 1 to 3 In one embodiment of this application, a soft support plate 13 is provided on the base 10, and the soft support plate 13 is configured to support the product.

[0099] The soft support plate 13 refers to a structural component that provides cushioning when subjected to compression. Optionally, the soft support component 31 can be made of rubber, silicone, etc. Furthermore, the soft support plate 13 can be fixedly installed on the base 10 by means of adhesive bonding, screw connection, snap-fit, etc.

[0100] This design allows the product to be placed on the soft support plate 13 for support. When subjected to downward pressure, the soft support plate 13 can act as a buffer, protecting the product and preventing it from being damaged.

[0101] This application also proposes a battery production line, which includes a pressurizing and heating device 100. The specific structure of the pressurizing and heating device 100 is as described in the above embodiments. Since this battery production line adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0102] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A pressurized heating device, characterized by, The application relates to a pressurizing and heating device. The device comprises a base, pressurizing and heating components, and a support block. The pressurizing and heating components comprise at least two oppositely arranged pressurizing structures, wherein a placing space is formed between the two pressurizing structures, and the placing space is configured to place products. The two pressurizing structures can move towards each other or in opposite directions to press or release the products.

2. The pressurized heating device of claim 1, wherein, The side of the two pressurizing structures facing each other is provided with an air bag heating film, and a cavity is formed between the air bag heating film and the pressurizing structure. The air bag heating film is deformed and configured to fit on the side plate of the product when the cavity is in an inflated state. The pressurizing structure comprises a driving member and a pressurizing member, and the driving member is arranged on the base.

3. The pressurized heating device of claim 2, wherein, The pressurizing member is drivingly connected to the driving member. The two driving members respectively drive the two pressurizing members to move towards each other or in opposite directions to press or release the products.

4. The pressurized heating device of claim 2, wherein, The air bag heating film is arranged on the side of the pressurizing member away from the driving member.

5. The pressurized heating device of any one of claims 1 to 4, wherein, An air flow channel is formed in the pressurizing member, and the side of the pressurizing member close to the air bag heating film is provided with an inflation hole.

6. The pressurized heating device of claim 5, wherein, The inflation hole is in communication with the air flow channel and the cavity, and the air flow channel is configured to be in communication with an external inflation equipment.

7. The pressurized heating device of claim 5, wherein, The periphery of the air bag heating film is provided with a flange extending towards the pressurizing member.

8. The pressurized heating device of claim 7, wherein, The flange is connected to the pressurizing member, and the air bag heating film, the flange and the pressurizing member are enclosed to form the cavity.

9. The pressurized heating device of any one of claims 1 to 4, wherein, The air bag heating film comprises a flexible lower layer film and a flexible upper layer film arranged in sequence, and a heating module is arranged between the flexible lower layer film and the flexible upper layer film.

10. The pressurized heating device of claim 9, wherein, The flexible lower layer film is arranged close to the pressurizing structure. The heating module is provided with a plurality of heating modules which are arrayed between the flexible lower layer film and the flexible upper layer film. A pressure sensor is also arranged between the flexible lower layer film and the flexible upper layer film. The pressure sensor is spaced apart from the heating module.

11. The pressurized heating device of claim 9, wherein, The pressure sensor is provided with a plurality of pressure sensors which are arrayed between the flexible lower layer film and the flexible upper layer film. The pressurizing and heating device further comprises a pressing mechanism arranged on the base and configured to press or release the top of the product.

12. The pressurized heating device of any one of claims 1 to 4, wherein, The pressing mechanism comprises a support member arranged on the base, a driver arranged on the support member, and a profiled pressing plate drivingly connected to the driver and driven by the driver to ascend and descend.

13. The pressurized heating device of claim 12, wherein, The two pressurizing structures are spaced apart along a first direction, and the pressing mechanism is provided with at least two pressing mechanisms which are spaced apart along the first direction. The base is provided with a sliding rail extending along the first direction, and the pressing mechanism is slidingly connected to the sliding rail. The pressurizing and heating device further comprises a support block arranged on the base and configured to support the end plate of the product. The two pressurizing structures are spaced apart along a first direction, and at least two support blocks are arranged along the first direction. The base is provided with a plurality of positioning holes spaced apart along the first direction, and the support block is selectively inserted into one of the positioning holes. And / or, the support blocks are provided in at least two groups, the at least two groups of support blocks are spaced apart along a second direction, and are arranged on two sides of the placement space, the second direction is arranged at an angle with the first direction, and the at least two groups of support blocks are configured to support end plates at two ends of the product respectively.

14. The pressurized heating device of any one of claims 1 to 4, wherein, The base is provided with a soft support plate configured to support the product.

15. A battery production line, characterized by A pressurized heating device comprising the pressurized heating device according to any one of claims 1 to 14.

Images