Battery hot-pressing device

Abstract

The utility model provides a battery hot-pressing device, relates to the technical field of battery production equipment, and aims to solve the problems that the thickness of a tab thinned area is smaller than that of a non-thinned area, so that gaps cannot be close to each other in the hot-pressing process, the bonding effect of a pole piece and a diaphragm is poor, and the service life of a battery is influenced to a certain extent. The utility model provides a battery hot-pressing device. The battery hot-pressing device comprises a rack, a bearing mechanism, a pressing mechanism and a driving component, the bearing mechanism is arranged on the rack, the bearing mechanism comprises a first base plate, a bearing plate and a first cushion piece, the bearing plate and the first cushion piece are both arranged on the first base plate, and the pressing mechanism is movably connected with the rack and is arranged opposite to the bearing mechanism; the downward pressing mechanism comprises a second base plate, a downward pressing plate and a second cushion piece, the driving component is connected with the rack, the driving end of the driving component is connected with the second base plate, the downward pressing plate and the second cushion piece are both arranged on the second base plate, and the driving component can drive the second base plate to move in the direction close to or away from the first base plate.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production equipment, in particular to a battery hot pressing device. Background Art

[0002] At present, there is a problem of uneven bonding of the adhesive layer after hot pressing of the pole piece during hot pressing of the core winding. There are two main reasons for this problem:

[0003] First, due to the thinning area on the pole piece on the ear side, the thickness of the thinning area on the ear side is lower than that of the non-thinning area, so there is a gap during the hot pressing process and it cannot be tightly attached;

[0004] The second reason is that there is no fixed structure on the ear side, so that during the hot pressing process, the side is not stressed and there is a gap between the pole piece and the diaphragm, which leads to poor bonding between the diaphragm and the pole piece. The above two reasons are the main factors that lead to the uneven bonding between the pole piece and the diaphragm during the hot pressing process.

[0005] The interface consistency problem of core hot pressing is very important. First, it will affect the interface of fresh batteries, thus affecting the battery life. Second, it will affect the expansion force of the battery during the cycle, thereby affecting the battery's expansion space, causing the battery to not match the expansion space reserved for the module during the cycle, indirectly affecting the life of the system.

[0006] Therefore, there is an urgent need to provide a battery hot pressing device to solve the problems existing in the prior art to a certain extent. Utility Model Content

[0007] The utility model aims to provide a battery hot pressing device, which can solve the problem that the thickness of the thinned area of ​​the pole ear is less than the thickness of the non-thinned area, resulting in a gap that cannot be closed during the hot pressing process, causing poor bonding between the pole piece and the diaphragm, and affecting the battery life.

[0008] The utility model provides a battery hot pressing device, including a frame, a supporting mechanism, a pressing mechanism and a driving component; the supporting mechanism is arranged on the frame, and the supporting mechanism includes a first substrate, a supporting plate and a first cushion, the supporting plate and the first cushion are both arranged on the first substrate, the pressing mechanism is movably connected to the frame and is arranged relative to the supporting mechanism; the pressing mechanism includes a second substrate, a pressing plate and a second cushion, the driving component is connected to the frame, and the driving end of the driving component is connected to the second substrate, the pressing plate and the second cushion are both arranged on the second substrate, and the driving component can drive the second substrate to move in a direction close to or away from the first substrate.

[0009] Among them, the frame includes a bottom plate and a column, the column is arranged on the bottom plate and extends in the vertical direction, the first substrate is arranged on the column and connected to the column, the second substrate is arranged on the column and slidably connected to the column, and the second substrate is spaced apart from the first substrate; the driving component includes a mounting plate and a driving member, the mounting plate is arranged at one end of the column away from the bottom plate and is fixedly connected to the column, and the driving end of the driving member passes through the mounting plate and is connected to the second substrate.

[0010] Specifically, the driving member also includes a threaded sleeve, and the driving member includes a threaded rod and a holding portion, the threaded rod cooperates with the threaded sleeve, and the holding portion and the threaded rod are arranged perpendicular to each other; the second substrate faces one side of the mounting seat, and a bearing seat is formed at the position corresponding to the threaded sleeve, a bearing is arranged in the bearing seat, and the end of the threaded rod away from the holding portion is connected to the inner ring of the bearing.

[0011] Wherein, the edges of both sides of the supporting plate are formed with a first side enclosure for fitting the edges of the battery cell.

[0012] Specifically, the lower pressing plate is formed with a second side enclosure on both sides thereof for fitting the edge of the battery cell, and the lower pressing plate is connected to the supporting plate to form a waist-shaped press-fitting space.

[0013] Among them, a first heating element is provided in the first substrate, and the heat of the first heating element can be transferred from the first substrate to the supporting plate. A second heating element is provided in the second substrate, and the heat of the second heating element can be transferred from the second substrate to the lower pressing plate to heat the battery cell.

[0014] Specifically, the first cushion member includes a first cushion block and a first adjusting member, the first cushion member is connected to the first substrate via the first adjusting member, and the first adjusting member can adjust the first cushion member to move toward or away from the first substrate.

[0015] Furthermore, the second cushion member includes a second cushion block and a second adjusting member, the second cushion member is connected to the second substrate via the second adjusting member, and the second adjusting member can adjust the second cushion member to move toward or away from the second substrate.

[0016] Furthermore, the battery hot pressing device provided by the utility model also includes a pressure detection component, the first substrate is slidably connected to the column, the pressure detection component is arranged between the first substrate and the bottom plate, and the pressure detection component supports the first substrate.

[0017] Furthermore, the battery hot pressing device provided by the utility model also includes a ruler, which extends in the vertical direction and is arranged on the column.

[0018] Compared with the prior art, the battery hot pressing device provided by the utility model has the following advantages:

[0019] The battery hot pressing device provided by the utility model comprises a frame, a supporting mechanism, a pressing mechanism and a driving component; the supporting mechanism is arranged on the frame, and the supporting mechanism comprises a first substrate, a supporting plate and a first cushion, the supporting plate and the first cushion are both arranged on the first substrate, the pressing mechanism is movably connected to the frame, and is arranged relative to the supporting mechanism; the pressing mechanism comprises a second substrate, a pressing plate and a second cushion, the driving component is connected to the frame, and the driving end of the driving component is connected to the second substrate, the pressing plate and the second cushion are both arranged on the second substrate, and the driving component can drive the second substrate to move in a direction close to or away from the first substrate.

[0020] From this analysis, it can be seen that the frame can provide a stable setting foundation for the supporting mechanism, the pressing mechanism and the driving mechanism, and the supporting mechanism in the present application includes a first substrate, a supporting plate and a first cushion, and the first substrate can provide a mounting foundation for the supporting plate and the first cushion. The pressing mechanism includes a second substrate, a lower pressing plate and a second cushion, and the second substrate can provide a mounting foundation for the lower pressing plate and the second cushion. In addition, the second substrate can also be used to achieve connection with the driving end of the driving member, thereby achieving the purpose of moving the second substrate in a direction close to or away from the first substrate.

[0021] It can be understood that the supporting plate can support and position the battery cells to be pressed, and since the lower pressure plate in the present application can move in the direction of the second substrate approaching or away from the first substrate, the battery cells can be pressed by the lower pressure plate and the supporting plate.

[0022] Correspondingly, since a first pad is correspondingly formed on the first substrate, a second pad is correspondingly formed on the second substrate, and the first pad and the second pad are arranged corresponding to the pole ear of the battery cell, when the lower pressure plate moves downward, the second pad can also move in the direction close to the first pad. When the lower pressure plate contacts the supporting plate to press the battery cell, the second pad and the first pad can also press the pole ear, thereby eliminating the gap generated by the thinned area and the non-thinned area of ​​the pole ear after overlapping. In addition, the first pad and the second pad can also make the pole ear and the diaphragm fit tightly during the hot pressing process, thereby avoiding the problem of insufficient tightness between the pole piece and the diaphragm caused by the gap generated by the thinned area and the non-thinned area, and avoiding the problem of insufficient tightness between the pole piece and the diaphragm caused by the lack of fixation on the pole ear side, thereby improving the stability of the battery hot pressing process and ensuring the battery life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the overall structure of a battery hot pressing device provided in an embodiment of the utility model;

[0025] Figure 2 A schematic structural diagram of a first cushion block and a first adjusting member in a battery hot pressing device provided in an embodiment of the utility model.

[0026] In the figure: 1-frame; 101-bottom plate; 102-column; 2-first substrate; 201-first heating element; 3-supporting plate; 301-first side enclosure; 4-first cushion; 401-first cushion block; 402-first adjusting member; 5-second substrate; 501-bearing seat; 502-second heating element; 6-lower pressure plate; 601-second side enclosure; 7-second cushion; 8-mounting plate; 801-threaded sleeve; 9-driving member; 901-threaded rod; 902-gripping portion; 10-pressure detection member; 11-ruler. DETAILED DESCRIPTION

[0027] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0028] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do 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 utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0032] For ease of description, spatial relative terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the drawings. Such spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the drawings.

[0033] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0034] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0035] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be considered that the combination of such technical solutions does not exist and is not within the scope of protection required by the present application.

[0036] like Figure 1 Combination Figure 2 As shown, the utility model provides a battery hot pressing device, including a frame 1, a supporting mechanism, a pressing mechanism and a driving member; the supporting mechanism is arranged on the frame 1, and the supporting mechanism includes a first substrate 2, a supporting plate 3 and a first cushion 4, the supporting plate 3 and the first cushion 4 are both arranged on the first substrate 2, the pressing mechanism is movably connected to the frame 1, and is arranged relative to the supporting mechanism; the pressing mechanism includes a second substrate 5, a pressing plate 6 and a second cushion 7, the driving member is connected to the frame 1, and the driving end of the driving member is connected to the second substrate 5, the pressing plate 6 and the second cushion 7 are both arranged on the second substrate 5, and the driving member can drive the second substrate 5 to move in a direction close to or away from the first substrate 2.

[0037] Compared with the prior art, the battery hot pressing device provided by the utility model has the following advantages:

[0038] The battery hot pressing device provided by the utility model can provide a stable installation foundation for the supporting mechanism, the pressing mechanism and the driving mechanism through the frame 1, and the supporting mechanism in the present application includes a first substrate 2, a supporting plate 3 and a first cushion 4, and the first substrate 2 can provide a mounting foundation for the supporting plate 3 and the first cushion 4, and the pressing mechanism includes a second substrate 5, a lower pressing plate 6 and a second cushion 7, and the second substrate 5 can provide a mounting foundation for the lower pressing plate 6 and the second cushion 7, and the second substrate 5 can also be used to connect with the driving end of the driving member, so as to achieve the purpose of moving the second substrate 5 in a direction close to or away from the first substrate 2.

[0039] It can be understood that the supporting plate 3 can support and position the battery cell to be pressed, and since the lower pressure plate 6 in the present application can move in the direction of approaching or moving away from the first substrate 2 following the second substrate 5, the battery cell can be pressed by the lower pressure plate 6 and the supporting plate 3.

[0040] Correspondingly, since a first pad 4 is correspondingly formed on the first substrate 2, a second pad 7 is correspondingly formed on the second substrate 5, and the first pad 4 and the second pad 7 are arranged corresponding to the pole ear of the battery cell, when the lower pressing plate 6 moves downward, the second pad 7 can also move in the direction close to the first pad 4. When the lower pressing plate 6 contacts the supporting plate 3 to press the battery cell, the second pad 7 and the first pad 4 can also press the pole ear, thereby eliminating the gap generated by the thinning area and the non-thinning area of ​​the pole ear after overlapping. In addition, the first pad 4 and the second pad 7 can also make the pole ear and the diaphragm fit tightly during the hot pressing process, thereby avoiding the problem of insufficient tightness between the pole piece and the diaphragm caused by the gap generated by the thinning area and the non-thinning area, and avoiding the problem of insufficient tightness between the pole piece and the diaphragm caused by the lack of fixation on the pole ear side, thereby improving the stability of the battery hot pressing process and ensuring the battery life.

[0041] Alternatively, if Figure 1 As shown, the frame 1 in the present application includes a base plate 101 and a column 102, the column 102 is arranged on the base plate 101 and extends in the vertical direction, the first substrate 2 is arranged on the column 102 and connected to the column 102, the second substrate 5 is arranged on the column 102 and slidably connected to the column 102, and the second substrate 5 is spaced apart from the first substrate 2; the driving component includes a mounting plate 8 and a driving member 9, the mounting plate 8 is arranged at one end of the column 102 away from the base plate 101, and is fixedly connected to the column 102, and the driving end of the driving member 9 passes through the mounting plate 8 and is connected to the second substrate 5.

[0042] The bottom plate 101 can provide a stable foundation for the placement of the entire device, and the bottom plate 101 can also provide a foundation for the arrangement of the columns 102. There are four columns 102 in the present application, and the bottom plate 101 is rectangular. The four columns 102 are respectively installed at the four corners of the bottom plate 101, thereby forming a rectangular positioning space. Correspondingly, the first substrate 2 and the second substrate 5 mentioned above in the present application are both rectangular, and can thus stably adapt to the space formed by the columns 102.

[0043] It can be understood that since the lower pressure plate 6 and the second cushion 7 in the present application need to be able to move downward, and the support plate 3 and the first cushion 4 need to provide a supporting foundation for the battery cell and the corresponding pole ear and a stable support when the lower pressure plate 6 is pressed downward, therefore, in the present embodiment, the first substrate 2 is fixedly connected to the column 102, and the second substrate 5 is slidably connected to the column 102, and the sliding connection between the second substrate 5 and the column 102 can be achieved by using a linear bearing, that is, the first substrate 2 and the second substrate 5 in the present application are both formed with perforations at the positions corresponding to the column 102, and the column 102 is arranged through the perforations, and accordingly, a linear bearing is arranged in the perforation of the second substrate 5, so that the purpose of moving the second substrate 5 along the column 102 can be achieved.

[0044] It should be additionally explained here that the driving component in the present application can adopt a linear telescopic structure such as a cylinder, an oil cylinder and an electric telescopic rod, so as to realize the reciprocating motion of the second substrate 5 in the vertical direction.

[0045] It should be further explained that the mounting plate 8 in the present application is located at the end of the column 102, and can be detachably connected to the column 102 by means of structures such as bolts or screws, so as to facilitate the maintenance and replacement of the driving member, the pressing mechanism and the supporting mechanism. Therefore, the first substrate 2 in the present application can also be detachably connected to the column 102 by means of structures such as flanges.

[0046] Alternatively, if Figure 1 As shown, the driving component in the present application also includes a threaded sleeve 801, and the driving member 9 includes a threaded rod 901 and a holding portion 902. The threaded rod 901 cooperates with the threaded sleeve 801, and the holding portion 902 and the threaded rod 901 are arranged perpendicular to each other; the second substrate 5 faces one side of the mounting seat, and a bearing seat 501 is formed at a position corresponding to the threaded sleeve 801, and a bearing is arranged in the bearing seat 501, and the end of the threaded rod 901 away from the holding portion 902 is connected to the inner ring of the bearing.

[0047] The gripping portion 902 and the threaded rod 901 that are perpendicular to each other can form a T-shaped structure for the driving member 9, so that it is easier to rotate manually to adjust the position of the second substrate 5. Accordingly, since the threaded sleeve 801 is formed on the mounting plate 8 in the present application, the driving member 9 can achieve movement relative to the mounting plate 8 through the threaded rod 901. Since the driving member 9 in the present application needs to drive the second substrate 5 to move, it is necessary for the driving member 9 to be able to rotate relative to the second substrate 5. Therefore, the present application sets a bearing seat 501 on the second substrate 5 and sets a bearing in the bearing seat 501, so that the threaded rod 901 can rotate relative to the second substrate 5.

[0048] Alternatively, if Figure 1 As shown, the edges of both sides of the supporting plate 3 in the present application are formed with a first side enclosure 301 for fitting the edges of the battery cell.

[0049] Accordingly, if Figure 1 As shown, the lower pressing plate 6 is provided with a second side enclosure 601 on both sides thereof for fitting the edge of the battery cell, and the lower pressing plate 6 is connected to the supporting plate 3 to form a waist-shaped pressing space.

[0050] By forming the first side enclosure 301 on both sides of the supporting plate 3 and the second side enclosure 601 on both sides of the lower pressure plate 6, the arc-shaped edge of the side of the battery cell can be matched, so that each position of the battery cell can fit into the pressing space formed by the lower pressure plate 6 and the supporting plate 3, thereby improving the degree of compression and uniformity of the battery cell.

[0051] It should be noted that the first side enclosure 301 and the second side enclosure 601 can gather the temperature during the hot pressing process to prevent the core temperature from dissipating too quickly, thereby reducing energy loss to a certain extent, reaching a predetermined temperature in a shorter time, and maintaining a stable temperature, thereby improving operating efficiency. In addition, the first side enclosure 301 and the second side enclosure 601 can also provide a certain degree of binding force, so that the pole piece on the side of the core can also be bonded to the diaphragm, thereby improving the state of the side boundary surface.

[0052] Alternatively, if Figure 1 As shown, the first substrate 2 in the present application is provided with a first heating element 201, and the heat of the first heating element 201 can be transferred from the first substrate 2 to the supporting plate 3. The second substrate 5 is provided with a second heating element 502, and the heat of the second heating element 502 can be transferred from the second substrate 5 to the lower pressing plate 6 to heat the battery cell.

[0053] During operation, the first heating element 201 and the second heating element 502 are turned on first, and when the temperature reaches a predetermined temperature, the core is placed in the support plate 3 so that the pole ear of the core is arranged corresponding to the first cushion member 4. Then, the hot pressing operation is started, and the second substrate 5 is driven by the driving member 9 to move in the direction close to the first substrate 2 until the lower pressing plate 6 is in contact with the support plate 3, so that the core is pressed by the lower pressing plate 6 and the support plate 3, and the pole ear and the diaphragm can be pressed by the first cushion member 4 and the second cushion member 7, thereby realizing the hot pressing operation of the entire battery cell.

[0054] Alternatively, if Figure 1 Combination Figure 2 As shown, the first cushion member 4 in the present application includes a first cushion block 401 and a first adjusting member 402 . The first cushion member 4 is connected to the first substrate 2 via the first adjusting member 402 , and the first adjusting member 402 can adjust the first cushion member 4 to move toward or away from the first substrate 2 .

[0055] Since different winding cores contain different numbers of overlapping layers of pole lugs, the height of the first cushion block 401 can be adjusted through the first adjusting member 402, thereby increasing or decreasing the distance between the first cushion member 4 and the second cushion member 7, and then adapting to different numbers of pole lug layers to ensure the pressing effect of the pole lugs and the diaphragm.

[0056] It is understandable that when the number of tab layers is small and the thickness of the tab side is thin, the first pad 401 can be adjusted to move toward the second pad, thereby achieving the purpose of reducing the distance between the two and ensuring the pressing effect on the tab.

[0057] It should be additionally explained here that, in this manner, the second cushion member 7 can be in a fixed state and can be adjusted only by the first cushion member 4 .

[0058] Correspondingly, the second cushion member 7 in the present application includes a second cushion block and a second adjusting member. The second cushion member 7 is connected to the second substrate 5 via the second adjusting member, and the second adjusting member can adjust the second cushion member 7 to move toward or away from the second substrate 5 .

[0059] The adjustment of the second cushion member 7 is the same as that of the first cushion member 4 and has the same purpose, so it will not be repeated here.

[0060] It should be supplemented here that the first adjusting member 402 and the second adjusting member mentioned above in the present application are both bolts, and are threadedly connected to the first substrate 2 and the second substrate 5. The first adjusting member 402 and the first cushion member 4, as well as the second adjusting member and the second cushion member 7 are also threadedly connected, so that when the first adjusting member 402 and the second adjusting member are screwed, the first cushion member 4 and the second cushion member 7 can be moved away from the first substrate 2 and the second substrate 5. Bearings can also be provided in the first cushion member 4 and the second cushion member 7 in the present application, and the bearings can realize the rotation of the first adjusting member 402 and the second adjusting member relative to the first cushion member 4 and the second cushion member 7, and can also realize the movement of the first cushion member 4 and the second cushion member 7 relative to the first substrate 2 and the second substrate 5 through threaded cooperation, thereby realizing the adjustment of the gap between the first cushion member 4 and the second cushion member 7.

[0061] Alternatively, if Figure 1 As shown, the battery hot pressing device provided by the utility model also includes a pressure detection component 10. The first substrate 2 is slidably connected to the column 102. The pressure detection component 10 is arranged between the first substrate 2 and the bottom plate 101, and the pressure detection component 10 supports the first substrate 2.

[0062] By setting the pressure detection member 10 between the first substrate 2 and the bottom plate 101, the pressure applied by the lower pressing plate 6 can be monitored in real time, thereby avoiding the problem of damage to the winding core and the tab caused by excessive pressure due to excessive pressure to a certain extent. Since the pressure detection member 10 needs to detect pressure, in this embodiment, the first substrate 2 is slidably connected to the column 102, and the sliding of the first substrate 2 relative to the column 102 can adopt the structure adopted by the second substrate 5 mentioned above, so as to ensure real-time detection of pressure.

[0063] Preferably, if Figure 1 As shown, the battery hot pressing device provided by the utility model further includes a ruler 11 , which extends in the vertical direction and is arranged on the column 102 .

[0064] There are two rulers 11 in the present application, and they are relatively arranged on the two front columns 102. The ruler 11 can be used to quickly obtain the thickness of the core under different pressures. Under a certain temperature and time, the relationship between the pressure and the core thickness can be obtained. The gap between the pole piece diaphragm in the thickness direction of the core can be confirmed, thereby confirming the relationship between different gaps and the battery interface, guiding the optimization of the confirmation of the initial core hot pressing parameters of different battery designs, ensuring the battery interface is qualified, and improving efficiency.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery hot pressing device, characterized in that: It includes a frame, a supporting mechanism, a pressing mechanism and a driving component; The supporting mechanism is arranged on the frame, and the supporting mechanism comprises a first substrate, a supporting plate and a first cushion, the supporting plate and the first cushion are both arranged on the first substrate, and the pressing mechanism is movably connected to the frame and arranged relative to the supporting mechanism; The pressing mechanism includes a second substrate, a pressing plate and a second cushion. The driving component is connected to the frame, and the driving end of the driving component is connected to the second substrate. The pressing plate and the second cushion are both arranged on the second substrate. The driving component can drive the second substrate to move in a direction close to or away from the first substrate.

2. The battery hot pressing device according to claim 1, characterized in that: The frame includes a bottom plate and a column, the column is arranged on the bottom plate and extends in a vertical direction, the first substrate is arranged on the column and connected to the column, the second substrate is arranged on the column and slidably connected to the column, and the second substrate is spaced apart from the first substrate; The driving component includes a mounting plate and a driving member. The mounting plate is arranged at one end of the column away from the bottom plate and is fixedly connected to the column. The driving end of the driving member passes through the mounting plate and is connected to the second base plate.

3. The battery hot pressing device according to claim 2, characterized in that: The driving member further comprises a threaded sleeve, the driving member comprises a threaded rod and a gripping portion, the threaded rod cooperates with the threaded sleeve, and the gripping portion and the threaded rod are arranged perpendicular to each other; A bearing seat is formed on one side of the second substrate facing the mounting seat and corresponding to the position of the threaded sleeve. A bearing is arranged in the bearing seat. One end of the threaded rod away from the gripping portion is connected to the inner ring of the bearing.

4. The battery hot pressing device according to claim 1, characterized in that: The edges of both sides of the supporting plate are formed with a first side enclosure for fitting the edges of the battery core.

5. The battery hot pressing device according to claim 4, characterized in that: Second side enclosures are formed on both sides of the lower pressing plate for fitting the edges of the battery core, and the lower pressing plate is connected to the supporting plate to form a waist-shaped pressing space.

6. The battery hot pressing device according to claim 1, characterized in that: A first heating element is provided in the first substrate, and the heat of the first heating element can be transferred from the first substrate to the supporting plate. A second heating element is provided in the second substrate, and the heat of the second heating element can be transferred from the second substrate to the lower pressing plate to heat the battery cell.

7. The battery hot pressing device according to claim 1, characterized in that: The first cushion member includes a first cushion block and a first adjusting member. The first cushion member is connected to the first substrate via the first adjusting member, and the first adjusting member can adjust the first cushion member to move toward or away from the first substrate.

8. The battery hot pressing device according to claim 1, characterized in that: The second cushion member includes a second cushion block and a second adjusting member. The second cushion member is connected to the second substrate via the second adjusting member, and the second adjusting member can adjust the second cushion member to move toward or away from the second substrate.

9. The battery hot pressing device according to claim 2, characterized in that: It also includes a pressure detection component. The first substrate is slidably connected to the column. The pressure detection component is arranged between the first substrate and the bottom plate, and the pressure detection component supports the first substrate.

10. The battery hot pressing device according to claim 2, characterized in that: The utility model also comprises a ruler, which extends in a vertical direction and is arranged on the column.

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