Battery cell hot-pressing device

Abstract

The invention relates to a battery cell hot-pressing device. The battery cell hot-pressing device comprises a substrate; the battery cell hot pressing mechanism comprises a supporting mechanism, the supporting mechanism is fixed to the base plate, a battery cell supporting piece is installed on one side of the supporting mechanism, the battery cell hot pressing mechanism further comprises a lifting assembly, and the lifting assembly is located between the battery cell supporting piece and the base plate; and the first driving mechanism is installed on the base plate, the first driving mechanism is connected with the lifting assembly, and the first driving mechanism is configured to drive the lifting assembly to jack the battery cell supporting piece. By arranging the lifting assembly between the battery cell supporting piece and the base plate, when the battery cell is subjected to hot pressing on the lower hot pressing plate, the battery cell supporting piece is located between the lower hot pressing plate and the battery cell, and after hot pressing is completed, the first driving mechanism can drive the lifting assembly to jack the battery cell supporting piece; therefore, the battery cell and the battery cell supporting piece jointly move by a certain distance in the vertical direction so that a manipulator can conveniently take down the battery cell subjected to hot pressing.

Description

Technical Field

[0001] The present application relates to the field of battery manufacturing equipment, and in particular to a battery cell hot pressing device. Background Art

[0002] In the cutting and stacking machine, in order to shape and activate the battery cells prepared by the stacked segments, they need to be subjected to a hot pressing process. At present, in the new energy lithium battery industry, most hot pressing mechanisms include an upper hot pressing plate, a lower hot pressing table, and components that drive the hot pressing plate and the hot pressing table to move relative to each other. Among them, the lower hot pressing table includes a lower hot pressing plate, a hot pressing lifting block, and a component that drives the hot pressing lifting block to move. During hot pressing, the surfaces of the lower hot pressing plate and the hot pressing lifting block used to support the battery cells are on the same horizontal plane, and they support the battery cells together; after the hot pressing is completed, the hot pressing lifting block rises, the battery cells are separated from the lower hot pressing plate, and are grabbed by the unloading robot.

[0003] However, when the hot pressing lifting block lifts the battery cell, there is a possibility that foreign matter enters the rectangular groove of the lower hot pressing plate. Once the foreign matter enters the rectangular groove of the lower hot pressing plate, it may cause the hot pressing to fail. Moreover, since the lower hot pressing plate and the hot pressing lifting block are not a whole, it may cause uneven heating of the battery cell during hot pressing. Summary of the invention

[0004] The present application provides a battery cell hot pressing device, which can solve the technical problem that when the hot pressing lifting block lifts the battery cell, there is a possibility of foreign matter entering the rectangular groove of the lower hot pressing plate. Once the foreign matter enters the rectangular groove of the lower hot pressing plate, it may cause the hot pressing to fail. In addition, since the lower hot pressing plate and the hot pressing lifting block are not a whole, it may cause uneven heating of the battery cell during hot pressing.

[0005] In a first aspect, an embodiment of the present application provides a battery cell hot pressing device, which includes: a substrate; a battery cell hot pressing mechanism, the battery cell hot pressing mechanism including a supporting mechanism, the supporting mechanism is fixed to the substrate, and a battery cell support is installed on one side of the supporting mechanism, a lower hot pressing plate is fixed between the battery cell support and the substrate, the battery cell hot pressing mechanism also includes a lifting assembly, the lifting assembly is located between the battery cell support and the substrate; a first driving mechanism, the first driving mechanism is installed on the substrate, and the first driving mechanism is connected to the lifting assembly, and the first driving mechanism is configured to drive the lifting assembly to lift the battery cell support.

[0006] In combination with the first aspect, in one embodiment, the lifting assembly includes: a driving rod device, the driving rod device includes driving slide rails installed on opposite sides of the substrate, and the driving slide rails are connected to the first driving mechanism; a mobile support assembly, the two ends of the mobile support assembly are respectively installed on the driving slide rails on opposite sides of the substrate, the mobile support assembly is located between the battery cell support and the substrate, and the first driving mechanism is configured to drive the mobile support assembly to lift the battery cell support; a second driving mechanism, the second driving mechanism is configured to drive the mobile support assembly to move along the driving slide rails.

[0007] In combination with the first aspect, in one embodiment, the movable support assembly includes two groups of movable components, the two groups of movable components are located on opposite sides of the lower hot pressing plate, and the second driving mechanism is configured to synchronously drive the two groups of movable components to move toward one side closer to or away from each other.

[0008] In combination with the first aspect, in one embodiment, each group of the moving components includes rollers and sliders fixed at both ends of the rollers, and the sliders at both ends of the rollers are slidably installed on the driving rails on opposite sides of the substrate; the second driving mechanism includes a first cylinder and at least two rotating wheels installed on the driving rails, at least two of the rotating wheels are connected by a synchronous belt, and the first cylinder is connected to the synchronous belt; the slider on each of the rollers is fixed to the synchronous belt, so that the first cylinder drives the rollers of the two groups of the moving components to move toward or away from each other through the synchronous belt.

[0009] In combination with the first aspect, in one embodiment, the second driving mechanism further includes a driving block, the driving block is fixed to the synchronous belt, at least part of the slider is fixed to the driving block, and the driving block is fixed to the piston rod of the first cylinder.

[0010] In combination with the first aspect, in one embodiment, the support mechanism includes: at least two groups of support components, at least two groups of the support components are fixed on opposite sides of the substrate; multiple pressing plates, the pressing plates are all installed on the side of the support components away from the substrate, and multiple pressing plates are pressed on opposite sides of the battery cell support; a tensioning mechanism, each group of the support components is equipped with the tensioning mechanism, and the tensioning mechanism is fixed to the pressing plates.

[0011] In combination with the first aspect, in one embodiment, the tensioning mechanism includes: a limit rod, which is fixed to the support assembly, and the limit rod fixes the limit member; a plurality of connecting blocks, each of which is fixed to the pressing plate, and the connecting blocks are passed through the limit rod, and an elastic member is sandwiched between the limit members.

[0012] In combination with the first aspect, in one embodiment, the support assembly includes: a support vertical plate, the plate surface of the support vertical plate is perpendicular to the plate surface of the base plate; a support rod, the support rod is fixed to one end of the support vertical plate away from the base plate, the support rod extends in a direction perpendicular to the extension direction of the pressing plate, and the two ends of the pressing plate are respectively installed on the support rod.

[0013] In combination with the first aspect, in one embodiment, a linear guide rail is further provided on a side of the support rod away from the base plate, and the pressing plate is slidably mounted on the linear guide rail.

[0014] In combination with the first aspect, in one embodiment, the first driving mechanism includes: a second cylinder, the second cylinder is connected to the lifting assembly; a movable guide rail, the movable guide rail passes through the base plate, and the movable guide rail extends in a direction perpendicular to the board surface of the base plate, and the lifting assembly is slidably mounted on the movable guide rail.

[0015] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0016] By arranging a lifting assembly between the battery cell support and the substrate, the battery cell support can be located between the lower hot pressing plate and the battery cell when the battery cell is hot pressed on the lower hot pressing plate. After the hot pressing is completed, the first driving mechanism can drive the lifting assembly to lift the battery cell support, so that the battery cell and the battery cell support are moved a certain distance in the vertical direction to facilitate the robot to remove the hot pressed battery cell. By using the battery cell support to lift the battery cell, there is no need to cut grooves on the lower hot pressing plate, which solves the technical problem in the related art that when foreign matter enters the rectangular groove of the lower hot pressing plate, the hot pressing may fail, and since the lower hot pressing plate and the hot pressing lifting block are not a whole, uneven heating of the battery cell during hot pressing may occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a battery cell hot pressing device provided in an embodiment of the present application;

[0019] Figure 2 A schematic diagram of the top view of the battery cell hot pressing device provided in an embodiment of the present application;

[0020] Figure 3This is a schematic diagram of the front structural view of the battery cell hot pressing device provided in an embodiment of the present application.

[0021] In the figure:

[0022] 1. Substrate;

[0023] 2. Cell hot pressing mechanism; 21. Support mechanism; 211. Support assembly; 2111. Support vertical plate; 2112. Support rod; 212. Pressing plate; 213. Tensioning mechanism; 2131. Limit rod; 2132. Limit member; 2133. Connecting block; 2134. Elastic member; 22. Lifting assembly; 221. Drive rail; 222. Moving assembly; 2221. Roller; 2222. Slider; 2231. First cylinder; 2232. Rotating wheel; 2233. Synchronous belt; 2234. Drive block; 23. Lower hot pressing plate;

[0024] 3. Battery cell support;

[0025] 41. Second cylinder; 42. Moving guide rail;

[0026] 5. Battery cell. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution 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, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] An embodiment of the present application provides a battery cell hot pressing device, which can solve the technical problem in the related art that when the hot pressing lifting block lifts the battery cell, there is a possibility of foreign matter entering the rectangular groove of the lower hot pressing plate, which may cause the hot pressing to fail. In addition, since the lower hot pressing plate and the hot pressing lifting block are not a whole, it may cause uneven heating of the battery cell during hot pressing.

[0029] See also Figure 1As shown, a battery cell hot pressing device provided in an embodiment of the present application may include: a substrate 1; a battery cell hot pressing mechanism 2, the battery cell hot pressing mechanism 2 includes a supporting mechanism 21, the supporting mechanism 21 is fixed to the substrate 1, and a battery cell support 3 is installed on one side of the supporting mechanism 21, a lower hot pressing plate 23 is fixed between the battery cell support 3 and the substrate 1, the battery cell hot pressing mechanism 2 also includes a lifting component 22, the lifting component 22 is located between the battery cell support 3 and the substrate 1; a first driving mechanism, the first driving mechanism is installed on the substrate 1, and the first driving mechanism is connected to the lifting component 22, the first driving mechanism is configured to drive the lifting component 22 to lift the battery cell support 3, the battery cell support 3 can be made of Teflon material, and the characteristics of Teflon material can make the battery cell 5 more evenly heated as a whole when the battery cell 5 is hot pressed, and when the first driving mechanism drives the lifting component 22 to lift the battery cell support 3, the battery cell support 3 is not easily damaged.

[0030] The embodiment of the present application sets a lifting assembly 22 between the battery cell support 3 and the substrate 1, so that when the battery cell 5 is hot-pressed by the lower hot pressing plate 23, the battery cell support 3 is sandwiched between the battery cell 5 and the lower hot pressing plate 23. After the hot pressing is completed, the first driving mechanism can drive the lifting assembly 22 to lift the battery cell support 3, so that the battery cell 5 and the battery cell support 3 move a certain distance in the vertical direction together, so that the robot can remove the hot-pressed battery cell 5. In addition, when the battery cell 5 is placed on the battery cell support 3 and is hot-pressed by the upper hot pressing plate, the lifting assembly 22 can have a certain gap with the battery cell support 3, and the gap can refer to the gap along the vertical direction perpendicular to the lower hot pressing plate 23. In the direction of the plate surface, the top surface of the lifting component 22 is lower than the top surface of the hot pressing plate, so that the battery cell 5 is supported as a whole by the lower hot pressing plate 23 during hot pressing, and the overall heating is more uniform. In addition, the battery cell 5 and the battery cell support 3 are lifted together, and even if foreign matter enters the gap between the lifting component 22 and the battery cell support 3 during the lifting process, it is easy to remove. After the battery cell support 3 is lowered, it will not affect the normal operation of the lower hot pressing plate 23. This solves the technical problem in the related art that when foreign matter enters the rectangular groove of the lower hot pressing plate 23, the hot pressing may fail, and since the lower hot pressing plate and the hot pressing lifting block are not a whole, the battery cell 5 may be heated unevenly during hot pressing.

[0031] In some optional embodiments, the lifting assembly 22 may include: a driving rod device, the driving rod device includes driving rails 221 installed on opposite sides of the substrate 1, the driving rails 221 are connected to the first driving mechanism, the bottom surface of the driving rails 221 can contact the substrate 1, and the substrate 1 is provided with a through hole, so that the first driving mechanism directly penetrates the through hole on the substrate 1 and connects with the driving rails 221; a moving support assembly, the two ends of the moving support assembly are respectively installed on the driving rails 221 on opposite sides of the substrate 1, the moving support assembly is located between the battery support 3 and the substrate 1, and the first driving mechanism is configured to drive the moving support assembly to lift the battery support 3. In the embodiment of the present application, The first driving mechanism may be a directly connected driving rail 221. In this case, the first driving mechanism will lift the driving rail 221 so that the driving rail 221 drives the movable support assembly to lift. Because the first driving mechanism is located on the bottom surface of the driving rail 221, the driving rail 221 can be directly lifted in the vertical direction, thereby reducing the driving path of the first driving mechanism as much as possible and increasing the driving efficiency. The second driving mechanism is configured to drive the movable support assembly to move along the driving rail 221. The supporting movable assembly 222 can move along the driving rail 221, so that the supporting movable assembly 222 can be moved to a suitable position before lifting the battery cell support 3, thereby enhancing the stability of the battery cell 5 being lifted when it is located on the battery cell support 3.

[0032] In some optional embodiments, the mobile support assembly includes two groups of mobile assemblies 222, the two groups of mobile assemblies 222 are located on opposite sides of the lower hot pressing plate 23, and the second driving mechanism is configured to synchronously drive the two groups of mobile assemblies 222 to move toward one side that is close to or away from each other. In the embodiment of the present application, the mobile support assembly for lifting the battery cell support 3 is set to be two groups of mobile assemblies 222 located on opposite sides of the lower hot pressing plate 23. In some cases, the two groups of mobile assemblies 222 can also move to positions close to or even close to each other. When the two groups of mobile assemblies 222 lift the battery cell support 3, since the battery cell 5 is located on the battery cell support 3, it can actually be regarded as two groups of mobile assemblies 222 lifting the battery cell 5. Both groups of mobile assemblies 222 can move along the driving slide rail 221, so that the area enclosed by the two groups of mobile assemblies 222 can be smaller than the area of ​​the battery cell 5, so that the force of the mobile assemblies 222 acting on the battery cell 5 is more concentrated, which is conducive to the height increase of the battery cell 5.

[0033] In some optional embodiments, each group of the moving components 222 includes a roller 2221 and a slider 2222 fixed at both ends of the roller 2221, and the sliders 2222 at both ends of the roller 2221 are slidably installed on the driving rails 221 on opposite sides of the substrate 1, that is, the slider 2222 moves in the driving rail 221 to drive the roller 2221 to move, and the roller 2221 is used to lift the battery cell support 3; the second driving mechanism includes a first cylinder 2231 and at least two mounted on the driving rail 221 The rotating wheels 2232 are connected by a synchronous belt 2233. The first cylinder 2231 is connected to the synchronous belt 2233. The first cylinder 2231 can be directly connected to the synchronous belt 2233 or indirectly connected to the synchronous belt 2233. The first cylinder 2231 and the two rotating wheels 2232 can be installed on the side of the driving slide rail 221, and the synchronous belt 2233 extends along the extension direction of the driving slide rail 221. After the synchronous belt 2233 is installed through the two rotating wheels 2232, the synchronous belt can be 2233 is regarded as two upper and lower driving belts; the slider 2222 on each of the rollers 2221 is fixed to the synchronous belt 2233, so that the first cylinder 2231 drives the rollers 2221 of the two groups of the moving components 222 to move toward or away from each other through the synchronous belt 2233. It should be understood that a slider 2222 is fixed at both ends of each roller 2221. In order to make each group of moving components 222 move smoothly, the two sliders 2222 at both ends of a roller 2221 are fixed to the upper driving belt. Or both are fixed to the lower driving belt. In addition, when the two sliders 2222 at both ends of one of the rollers 2221 are fixed to the upper driving belt, the two sliders 2222 at both ends of the other roller 2221 should be fixed to the lower driving belt, so that the two rollers 2221 can move toward or away from each other. The synchronous belt 2233 is used to make the two rollers 2221 move synchronously, so that the two rollers 2221 move the same distance at a time. When they jointly support the battery cell 5, the two rollers 2221 can maintain balanced support for the battery cell 5 as much as possible.

[0034] In some optional embodiments, the second driving mechanism further includes a driving block 2234, the driving block 2234 is fixed to the synchronous belt 2233, at least part of the slider 2222 is fixed to the driving block 2234, and the driving block 2234 is fixed to the piston rod of the first cylinder 2231. It should be understood that the slider 2222 can be directly fixed to the synchronous belt 2233 or indirectly fixed to the synchronous belt 2233. In the embodiment of the present application, all the sliders 2222 are fixed to the synchronous belt 2233 through the driving block 22 34 is indirectly fixed to the synchronous belt 2233, and one of the two sliders 2222 on each driving slide rail 221 is indirectly fixed to the first cylinder 2231 through the driving block 2234, that is, the driving block 2234 is fixed to the piston rod of the first cylinder 2231, and the driving block 2234 is fixed to the synchronous belt 2233 and the slider 2222. When the first cylinder 2231 drives the piston rod to move, the driving block 2234 is also driven to move, thereby causing the synchronous belt 2233 to move accordingly. In some other embodiments, a support block may be connected between the slider 2222 and the roller 2221, that is, the slider 2222 is indirectly connected to the roller 2221 through the support block. In order to ensure that the slider 2222 can slide stably on the driving rail 221, the slider 2222 is set to have a larger surface area and volume. However, in order to support the roller 2221 to a certain height, the roller 2221 and the substrate 1 have a certain distance, so the slider 2222 needs to be increased in thickness in the vertical direction. At this time, the slider 2222 and the roller 2221 are indirectly connected through the support block to meet the above requirements. The support block and the slider 2222 can be connected to the driving block 2234. At this time, in order to save manufacturing costs, the surface area of ​​the support block can be smaller than the surface area of ​​the slider 2222, and the end of the roller 2221 can be inserted into the pin hole of the support block.

[0035] See also Figure 2As shown, in some optional embodiments, the support mechanism 21 may include: at least two groups of support components 211, at least two groups of the support components 211 are fixed on opposite sides of the substrate 1; a plurality of pressing plates 212, the pressing plates 212 are all installed on the side of the support component 211 away from the substrate 1, and the plurality of pressing plates 212 are pressed on opposite sides of the battery cell support 3, the extension direction of the pressing plates 212 can be consistent with the extension direction of the rollers 2221, so that the rollers 2221 can effectively avoid contact with the pressing plates 212 during lifting; a tensioning mechanism 213, each group of the support components 211 is equipped with the tensioning mechanism 213, And the tensioning mechanism 213 is fixed to the pressing plate 212. In the embodiment of the present application, the two sides of the battery cell support 3 are respectively fixed to the pressing plate 212. During the process of hot pressing and removing the battery cell 5, the height of the pressing plate 212 in the vertical direction can remain unchanged. When the roller 2221 lifts the battery cell support 3, the plate surface close to the middle of the battery cell support 3 is lifted. Since the battery cell support 3 is made of Teflon material, it has a certain toughness and can withstand a certain impact and deformation. Therefore, during the lifting process, even if the two sides of the battery cell support 3 are kept at the same height and the position does not change, the middle part of the battery cell support 3 can be smoothly lifted. Furthermore, in order to enable the battery cell support 3 to exert a certain supporting force during the hot pressing of the battery cell 5, even if it can withstand a certain deformation, its deformation has a certain limit. Therefore, a tensioning mechanism 213 is provided so that the pressing plate 212 can move in the horizontal direction when the battery cell support 3 is lifted. Specifically, its moving direction is consistent with the extension direction of the driving slide rail 221. During the movement, the stability and safety of the lifting process of the battery cell support 3 can be ensured under the action of the tensioning mechanism 213.

[0036] Furthermore, during the hot pressing process, the battery cell 5 is tightly attached to the battery cell support 3. When the roller 2221 lifts the battery cell support 3, since the two sides of the battery cell support 3 are pressed by the pressing plate 212, the height of the two sides of the battery cell support 3 in the vertical direction does not change. As the roller 2221 continues to lift, a certain gap is gradually formed between the two sides of the battery cell 5 and the two sides of the battery cell support 3. When the roller 2221 is lifted to the preset position, there is a certain distance between the two sides of the battery cell 5 and the two sides of the battery cell support 3, which is convenient for the robot to grab the battery cell 5 from the distance.

[0037] In some optional embodiments, the tensioning mechanism 213 may include: a limiting rod 2131, the limiting rod 2131 is fixed to the supporting assembly 211, and the limiting rod 2131 fixes the limiting member 2132; a plurality of connecting blocks 2133, each of the connecting blocks 2133 is fixed to the pressing plate 212, and the connecting blocks 2133 are passed through the limiting rod 2131, and an elastic member is sandwiched between the limiting member 2132 and the limiting member 2132. 2134, it should be understood that two limit members 2132 can be provided on the limit rod 2131, and each limit member 2132 corresponds to the pressing plate 212 on one side. At this time, two connecting blocks 2133 and two elastic members 2134 are also passed through the limit rod 2131, and each elastic member 2134 is fixed therein by the limit member 2132 and the connecting block 2133. In the embodiment of the present application, continuous compression during the lifting process of the battery cell support 3 can be achieved through a relatively simple mechanical structure.

[0038] In some optional embodiments, the support assembly 211 may include: a support vertical plate 2111, the plate surface of the support vertical plate 2111 is perpendicular to the plate surface of the substrate 1, and two support vertical plates 2111 may be provided, and the two support vertical plates 2111 are both arranged on the same side of the substrate 1 and are arranged at intervals from each other. Weight-reducing holes may also be opened on the support vertical plates. This arrangement method can not only save manufacturing materials and reduce the overall weight of the battery cell hot pressing device, but also enhance the supporting stability of the support assembly 211; a support rod 2112, the support rod 2112 is fixed to one end of the support vertical plate 2111 away from the substrate 1, the support rod 2112 extends along an extension direction perpendicular to the pressing plate 212, and the two ends of the pressing plate 212 are respectively installed on the support rod 2112, at this time, the limit rod 2131 can be fixed on the support rod 2112, and the support rod 2112 provides a certain supporting force to the limit rod 2131. Preferably, a linear guide rail is further provided on the side of the support rod 2112 away from the substrate 1, and the pressing plate 212 is slidably installed on the linear guide rail. The linear guide rail is set on the support rod 2112 so that the pressing plate 212 can cooperate with the linear guide rail, providing a guiding effect for the stable movement of the pressing plate 212, thereby enhancing the overall working stability of the battery cell hot pressing device.

[0039] See also Figure 3As shown, in some optional embodiments, the first driving mechanism may include: a second cylinder 41, the second cylinder 41 is connected to the lifting component 22; a movable guide rail 42, the movable guide rail 42 is passed through the substrate 1, and the movable guide rail 42 extends in a direction perpendicular to the board surface of the substrate 1, and the lifting component 22 is slidably installed on the movable guide rail 42. In the embodiment of the present application, the second cylinder 41 can drive the lifting component 22 to move in the vertical direction, and the driving slide rail 221 in the lifting component 22 cooperates with the movable guide rail 42. With the cooperation of the movable guide rail 42, the driving slide rail 221 can maintain the moving direction as much as possible, further enhancing the stability of the movement of the driving slide rail 221.

[0040] Compared with the related art in which a groove is provided in the lower hot pressing plate 23 and a lifting plate is embedded in the groove, when the lifting plate lifts the battery cell 5, the groove will be empty, and foreign matter entering the groove will be difficult to remove, which will have a greater impact on the function of the mechanism. The battery cell hot pressing device in the embodiment of the present application does not need to provide a groove in the lower hot pressing plate 23, and the rollers 2221 are located on opposite sides of the lower hot pressing plate 23 when there is no lifting, and the top surface height of the rollers 2221 is lower than the top surface height of the lower hot pressing plate 23. At this time, the lower hot pressing plate 23 serves as a mechanism with a complete plane, and the heating energy is relatively uniform. Even if foreign matter enters the lower hot pressing plate 23 when the rollers 2221 lift the battery cell 5, it can be directly removed, and is not easy to affect the subsequent hot pressing work of the battery cell 5.

[0041] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0042] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0043] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A battery core hot pressing device, characterized in that: It includes: base(1); A cell hot pressing mechanism (2), the cell hot pressing mechanism (2) comprising a support mechanism (21), the support mechanism (21) being fixed to the substrate (1), and a cell support member (3) being installed on one side of the support mechanism (21), a lower hot pressing plate (23) being fixed between the cell support member (3) and the substrate (1), the cell hot pressing mechanism (2) further comprising a lifting component (22), the lifting component (22) being located between the cell support member (3) and the substrate (1); A first driving mechanism, wherein the first driving mechanism is mounted on the substrate (1), and the first driving mechanism is connected to the lifting assembly (22), and the first driving mechanism is configured to drive the lifting assembly (22) to lift the battery cell support (3).

2. The battery core hot pressing device according to claim 1, characterized in that: The lifting assembly (22) comprises: A driving rod device, the driving rod device comprising driving slide rails (221) installed on opposite sides of the base plate (1), the driving slide rails (221) being connected to the first driving mechanism; a movable support assembly, wherein two ends of the movable support assembly are respectively mounted on the driving slide rails (221) on opposite sides of the base plate (1), the movable support assembly is located between the battery cell support member (3) and the base plate (1), and the first driving mechanism is configured to drive the movable support assembly to lift the battery cell support member (3); A second driving mechanism, wherein the second driving mechanism is configured to drive the movable support assembly to move along the driving slide rail (221).

3. The battery core hot pressing device according to claim 2, characterized in that: The movable support assembly comprises two groups of movable assemblies (222), the two groups of movable assemblies (222) are located on opposite sides of the lower hot pressing plate (23), and the second driving mechanism is configured to synchronously drive the two groups of movable assemblies (222) to move toward one side closer to or farther away from each other.

4. The battery core hot pressing device according to claim 3, characterized in that: Each group of the moving components (222) comprises a roller (2221) and sliders (2222) fixed at both ends of the roller (2221), and the sliders (2222) at both ends of the roller (2221) are slidably mounted on the driving slide rails (221) at opposite sides of the base plate (1); The second driving mechanism comprises a first cylinder (2231) and at least two rotating wheels (2232) installed on the driving slide rail (221), the at least two rotating wheels (2232) are connected by a synchronous belt (2233), and the first cylinder (2231) is connected to the synchronous belt (2233); The slider (2222) on each of the rollers (2221) is fixed to the synchronous belt (2233), so that the first cylinder (2231) drives the rollers (2221) of the two groups of the moving components (222) to move toward a side that is closer to or farther away from each other through the synchronous belt (2233).

5. The battery core hot pressing device according to claim 4, characterized in that: The second driving mechanism also includes a driving block (2234), the driving block (2234) is fixed to the synchronous belt (2233), at least part of the slider (2222) is fixed to the driving block (2234), and the driving block (2234) is fixed to the piston rod of the first cylinder (2231).

6. The battery core hot pressing device according to claim 1, characterized in that: The supporting mechanism (21) comprises: At least two groups of support components (211), wherein at least two groups of support components (211) are fixed on opposite sides of the base plate (1); a plurality of pressing plates (212), each of the pressing plates (212) being mounted on a side of the support assembly (211) away from the substrate (1), and the plurality of pressing plates (212) being pressed on opposite sides of the battery cell support (3); A tensioning mechanism (213), each group of the supporting components (211) is equipped with the tensioning mechanism (213), and the tensioning mechanism (213) is fixed to the pressing plate (212).

7. The battery core hot pressing device according to claim 6, characterized in that: The tensioning mechanism (213) comprises: A limiting rod (2131), wherein the limiting rod (2131) is fixed to the supporting assembly (211), and the limiting rod (2131) fixes a limiting member (2132); A plurality of connection blocks (2133), each of the connection blocks (2133) is fixed to the pressing plate (212), and the connection blocks (2133) are passed through the limiting rod (2131), and an elastic member (2134) is sandwiched between the limiting member (2132) and the limiting member (2132).

8. The battery core hot pressing device according to claim 7, characterized in that: The support assembly (211) comprises: A supporting vertical plate (2111), wherein the plate surface of the supporting vertical plate (2111) and the plate surface of the base plate (1) are perpendicular to each other; A support rod (2112), wherein the support rod (2112) is fixed to one end of the support vertical plate (2111) away from the base plate (1), the support rod (2112) extends in a direction perpendicular to the extension direction of the pressing plate (212), and the two ends of the pressing plate (212) are respectively mounted on the support rod (2112).

9. The battery core hot pressing device according to claim 8, characterized in that: A linear guide rail is also provided on the side of the support rod (2112) away from the base plate (1), and the pressing plate (212) is slidably mounted on the linear guide rail.

10. The battery core hot pressing device according to claim 1, characterized in that: The first driving mechanism comprises: A second cylinder (41), the second cylinder (41) being connected to the lifting assembly (22); A movable guide rail (42), wherein the movable guide rail (42) is penetrated through the base plate (1), and the movable guide rail (42) extends in a direction perpendicular to the surface of the base plate (1), and the lifting component (22) is slidably mounted on the movable guide rail (42).

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