Battery cell coating device and hot melting equipment

Abstract

The utility model discloses a battery cell film coating device and hot melting equipment, the battery cell film coating device comprises a driving mechanism and a plurality of pressing mechanisms, and each pressing mechanism comprises a mounting piece, a pressing piece and an elastic piece; the mounting part is connected with the driving mechanism, the pressing part is movably mounted on the mounting part, and the driving mechanism is used for driving the mounting part to move along a preset direction so as to drive the pressing part to move to press a hot melting area on a cell coating film; the elastic piece is arranged on the installation piece and connected to the pressing piece, so that the pressing piece can move relative to the installation piece in the first direction under the abutting action of the hot melting area, and the first direction is opposite to the preset direction.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage device production equipment, in particular to an electric core coating device and hot-melt equipment. Background Art

[0002] During the battery production process, a layer of Mylar film is wrapped on the outer surface of the battery cell, and the Mylar film is usually fixed to the lower plastic of the top cover using the principle of laser hot melting, so as to protect and insulate the battery cell during the shelling process, thereby preventing the battery cell from short-circuiting when in contact with the battery shell during operation.

[0003] However, since the Mylar film hot-melt equipment in the related art usually uses an integrated pressing plate to press the Mylar film, the surface flatness of the pressing plate is relatively low, and it is easy for the surface between the pressing plate and the battery cell to be non-parallel, making it difficult to press each hot-melt point, resulting in poor pressing effect of the pressing plate on the Mylar film, which in turn affects the hot-melt effect of the Mylar film, which will lead to insufficient connection strength at the welding position, resulting in unqualified products. Utility Model Content

[0004] The embodiment of the utility model discloses a battery core coating device and hot-melt equipment, which can not only press each hot-melt point to improve the pressing effect and thus the hot-melt effect, but also avoid the situation where the battery core is damaged due to excessive pressure.

[0005] In order to achieve the above-mentioned purpose, in a first aspect, the utility model discloses a battery core coating device, the battery core coating device comprising:

[0006] a drive mechanism; and

[0007] A plurality of clamping mechanisms, each of which comprises a mounting member, a clamping member and an elastic member, wherein the mounting member is connected to the driving mechanism, the clamping member is movably mounted on the mounting member, and the driving mechanism is used to drive the mounting member to move along a preset direction to drive the clamping member to move to the hot melt area on the battery cell coating film;

[0008] The elastic member is arranged on the mounting member, and the elastic member is connected to the pressing member, so that the pressing member can move relative to the mounting member along a first direction under the abutment of the hot melt area, wherein the first direction is opposite to the preset direction.

[0009] In the battery cell coating device provided in the present application, it includes multiple clamping mechanisms, so that each hot-melt area on the battery cell coating can correspond to an independent clamping mechanism, and the clamping parts of each clamping mechanism are also connected to an elastic part, so that each clamping part can float when clamping the hot-melt area, so that each clamping part can adaptively adjust the pressure on the hot-melt area to ensure that appropriate pressure is applied to each hot-melt area, and further ensure that each hot-melt area can be tightly pressed by the corresponding clamping part without damaging the battery cell. In this way, the pressing effect of the battery cell coating device on the battery cell coating can be ensured and the hot-melt effect of the battery cell coating can be improved; it can also avoid the situation where the pressure applied by the clamping part is too large and causes damage to the battery cell.

[0010] Furthermore, since each hot melt area has a single clamping mechanism to clamp it, it is easy to observe the pressing effect of each hot melt area, reducing the observation time, which is beneficial to improving the hot melt efficiency; it is also convenient for production line personnel to observe and repair. If there is a damaged clamping mechanism, the damaged clamping mechanism can be replaced alone, which is beneficial to reduce maintenance costs.

[0011] As an optional embodiment, in the embodiment of the first aspect of the utility model, the battery cell coating device also includes an adapter, and multiple mounting parts are installed on the adapter, and the adapter is connected to the driving mechanism, so that multiple mounting parts are connected to the driving mechanism through the adapter, so that multiple clamping mechanisms can share one driving mechanism to provide power. Compared with the method of using one driving mechanism to provide power for each clamping mechanism, the number of driving mechanisms used is relatively small, the cost is relatively low, and the structure is relatively compact, which is conducive to miniaturized design.

[0012] As an optional embodiment, in an embodiment of the first aspect of the utility model, the battery cell coating device also includes an adapter, which is connected to the driving mechanism and is provided with an axial hole. Each of the clamping mechanisms also includes a rotating shaft, which is rotatably inserted into the axial hole, and the side of the mounting member facing away from the clamping member is connected to the rotating shaft so that the clamping member can swing, so that the clamping member can rotate a corresponding angle according to the specific position of the hot melt area to adjust its own position, that is, when, thereby ensuring that the clamping member can face the hot melt area to clamp the hot melt area.

[0013] As an optional embodiment, in the embodiment of the first aspect of the utility model, each of the clamping mechanisms further includes a locking assembly, the locking assembly is mounted on the adapter and connected to the clamping member, and the locking assembly can switch between a locked state and an unlocked state; wherein, when the clamping member is not in contact with the hot melt area, the locking assembly is used to limit the swinging of the clamping member and limit the rotation of the rotating shaft relative to the shaft hole, and when the clamping member is in contact with the hot melt area, the locking assembly is in the unlocked state, the clamping member can swing, and the rotating shaft can rotate relative to the shaft hole. By setting the locking assembly, the clamping member can only swing after it is in contact with the hot melt area, and cannot swing when it is not in contact with the hot melt area, thereby preventing the clamping member from rotating, shaking or swinging at will when it is not in contact with the hot melt area (i.e., in the initial state), and accidentally colliding with an adjacent clamping member, thereby avoiding damage to the clamping member, so as to ensure the service life of the clamping member.

[0014] As an optional embodiment, in an embodiment of the first aspect of the utility model, the locking assembly includes a fixing member and a locking structure; the fixing member is installed on the adapter and is located on one side of the mounting member, and the fixing member has a fixing portion, and the fixing portion is located on the side of the pressing member away from the mounting member; the locking structure includes a locking groove and a locking pin passing through the locking groove, one of the locking groove and the locking pin is arranged on the pressing member, and the other of the locking groove and the locking pin is arranged on the fixing portion, the width of the locking groove in the first direction gradually increases along the second direction, and the second direction, the preset direction and the axial direction of the locking pin are perpendicular to each other; when the locking assembly is in the locked state, the locking pin is passed through the position where the width of the locking groove in the second direction is the smallest, and the locking pin is abutted by the side wall of the locking groove to limit the swing of the pressing member; when the locking pin slides relative to the locking groove along the first direction, the locking assembly switches from the locked state to the unlocked state.

[0015] The above design can enable the locking assembly to switch between the locked state and the unlocked state while achieving the resetting of the two degrees of freedom in the linear direction and the rotational direction through a power (i.e., the force provided by the elastic member to restore the deformation). That is, the resetting of the clamping member in the linear direction and the rotational direction can be achieved by sharing the same elastic member, and there is no need to set two elastic members to respectively achieve the resetting of the clamping member in the linear direction and the rotational direction. The number of elastic members used is relatively small, the cost is relatively low, and the structure is relatively compact, which is conducive to miniaturized design.

[0016] As an optional embodiment, in the embodiment of the first aspect of the utility model, each of the clamping mechanisms also includes a bearing, which is arranged between the outer peripheral surface of the rotating shaft and the wall surface of the shaft hole. In this way, the bearing can be used to reduce the friction between the outer peripheral surface of the rotating shaft and the wall surface of the shaft hole, so as to facilitate the rotation of the rotating shaft relative to the shaft hole.

[0017] As an optional embodiment, in an embodiment of the first aspect of the utility model, the axial hole passes through two opposite side surfaces of the adapter in the axial direction of the rotating shaft, and the axial hole includes a first hole section and a second hole section which are sequentially connected to each other, the radial dimension of the first hole section is smaller than the radial dimension of the second hole section to construct a first step surface, and the first hole section is closer to the mounting member than the second hole section, and the rotating shaft is passed through the first hole section and the second hole section; each of the clamping mechanisms also includes a limit member, which is connected to the side of the adapter facing away from the mounting member, and the limit member covers the second hole section; the bearing is arranged between the outer peripheral surface of the rotating shaft and the hole wall surface of the second hole section, and the bearing abuts between the first step surface and the limit member.

[0018] The shaft hole in the present application adopts a through hole, so even if the shaft hole includes a first hole section and a second hole section with different radial dimensions, and the radial dimension of the first hole section is smaller than the radial dimension of the second hole section, the bearing can be installed in the second hole section from the opening of the second hole section. At the same time, since the radial dimension of the first hole section is smaller than the radial dimension of the second hole section, a first step surface can be constructed to abut against the bearing, thereby preventing the bearing from escaping from the shaft hole from the opening of the first hole section, and a limiter is provided to abut against the bearing by the limiter, thereby preventing the bearing from escaping from the shaft hole from the opening of the second hole section. The above design, by designing the shaft hole as a stepped hole to form a first step surface that limits the bearing from escaping from the shaft hole, compared with the shaft hole being a straight hole, the method of using a limiter to limit the bearing from escaping from the shaft hole from the opening of the first hole section has a relatively small number of parts and components, a relatively low cost, and a relatively compact structure, which is conducive to miniaturized design.

[0019] As an optional implementation, in the embodiment of the first aspect of the utility model, the rotating shaft includes a first shaft segment and a second shaft segment connected to each other, the radial dimension of the first shaft segment is smaller than the radial dimension of the second shaft segment, so as to construct a second step surface, the first shaft segment is inserted into the first hole segment, the second shaft segment is inserted into the second hole segment, and the bearing sleeve is arranged on the outer periphery of the second shaft segment and abuts against the second step surface. By designing the rotating shaft as a stepped shaft adapted to the shaft hole to form a second step surface, the second step surface abuts against the bearing to prevent the rotating shaft from detaching from the shaft hole from the opening of the second hole segment, compared with the method of using additional components to restrict the rotating shaft from detaching from the shaft hole from the opening of the second hole segment, the number of components is relatively small, the cost is relatively low, and the structure is relatively compact, which is conducive to miniaturization design.

[0020] As an optional embodiment, in the embodiment of the first aspect of the utility model, the shaft hole also includes a third hole segment, the third hole segment is connected to the first hole segment, the first hole segment is located between the second hole segment and the third hole segment, the radial dimension of the third hole segment is larger than the radial dimension of the first hole segment, so as to construct a third step surface; the rotating shaft also includes a third shaft segment, the third shaft segment is connected to the side of the first shaft segment facing away from the second shaft segment, the radial dimension of the third shaft segment is larger than the radial dimension of the first shaft segment, so as to construct a fourth step surface, the third shaft segment is penetrated by the third hole segment, and the fourth step surface abuts against the third step surface. In this way, the rotating shaft will not only be restricted by the bearing and cannot be separated from the shaft hole from the second hole segment, but also be restricted by the third step surface of the shaft hole and cannot be separated from the shaft hole from the second hole segment, thereby greatly reducing the risk of the rotating shaft being separated from the shaft hole from the opening of the second hole segment.

[0021] As an optional implementation, in the embodiment of the first aspect of the utility model, the position limiting member is provided with a receiving hole connected to the second hole segment, and each of the clamping mechanisms further includes a gasket, which is arranged on the end face of the rotating shaft and is located in the receiving hole, and the gasket abuts against the bearing. In this way, the rotating shaft can abut against the bearing with the gasket, and the bearing is abutted by the first step surface of the shaft hole to limit the bearing from being separated from the shaft hole from the opening of the third hole segment, so that the rotating shaft abuts against the bearing through the gasket, and is restricted by the bearing from being separated from the shaft hole from the opening of the third hole segment. Compared with the method of using additional components to limit the rotating shaft from being separated from the shaft hole from the opening of the third hole segment, the number of components is relatively small, the cost is relatively low, and the structure is relatively compact, which is conducive to miniaturization design.

[0022] Moreover, the bearing will not only be restricted by the limit member but also by the gasket so as to be unable to separate from the shaft hole from the second hole section, thereby greatly reducing the risk of the bearing separating from the shaft hole from the opening of the second hole section.

[0023] As an optional embodiment, in an embodiment of the first aspect of the utility model, the mounting member includes a mounting portion and a protruding portion arranged on one side of the mounting portion, the clamping member is movably mounted on the mounting portion, the protruding portion is provided with a guide portion, the elastic member is passed through the outer periphery of the guide portion, and the elastic member abuts between the clamping member and the guide portion, so that when the elastic member is deformed or deformed back, the guide portion can be used to guide the deformation of the elastic member, thereby facilitating the elastic member to deform or deform back.

[0024] As an optional embodiment, in the embodiment of the first aspect of the utility model, each of the clamping mechanisms also includes a first guide structure, the first guide structure includes a first guide rail and a first guide groove, one of the first guide rail and the first guide groove is arranged on the mounting member, the other of the first guide rail and the first guide groove is arranged on the clamping member, the first guide rail extends along the first direction, and the first guide groove is slidably connected to the first guide rail, so that when the clamping member moves relative to the mounting member along the first direction, the cooperation between the first guide rail and the first guide groove can be utilized to guide the movement of the clamping member, thereby facilitating the movement of the clamping member relative to the mounting member along the first direction and improving the stability of the movement of the clamping member relative to the mounting member along the first direction.

[0025] As an optional embodiment, in the embodiment of the first aspect of the utility model, the first guide structure also includes an intermediate slide rail, the intermediate slide rail is located between the first guide rail and the first guide groove, and the intermediate slide rail is slidably connected to the first guide groove, and the intermediate slide rail is provided with a slide groove on a side facing the first guide rail, and the slide groove is slidably connected to the first guide rail. With the above design, when the clamping member moves relative to the mounting member along the first direction, the first guide groove will slide relative to the intermediate slide rail, and the slide groove of the intermediate slide rail will also slide relative to the first guide rail, which can prevent the first guide rail and the first guide groove from getting stuck, thereby reducing the friction and wear between the first guide rail and the first guide groove, and further helps to increase the service life of the first guide structure.

[0026] As an optional embodiment, in an embodiment of the first aspect of the utility model, the battery cell coating device also includes a substrate and a second guide structure, the second guide structure includes a second guide rail and a second guide groove, one of the second guide rail and the second guide groove is arranged on the substrate, and the other of the second guide rail and the second guide groove is arranged on the mounting member, the second guide rail extends along the preset direction, and the second guide groove is slidably connected to the second guide rail, so that when the driving mechanism drives the clamping member to move along the preset direction, the cooperation between the second guide rail and the second guide groove can be utilized to guide the movement of the clamping member, thereby facilitating the movement of the clamping member along the preset direction and improving the stability of the movement of the clamping member along the preset direction.

[0027] In the second aspect, the utility model discloses a hot melt device, the hot melt device includes a hot melt mechanism and the battery core coating device as described in the first aspect, the hot melt mechanism is arranged on one side of the battery core coating device, and the hot melt mechanism is used to hot melt the hot melt area compressed by the compression member of the compression mechanism. Since the hot melt device has the battery core coating device as described in the first aspect, the hot melt device having the battery core coating device as described in the first aspect can also compress each hot melt point to improve the pressing effect, thereby improving the hot melt effect, and at the same time can avoid the situation where the battery core is damaged due to excessive pressure.

[0028] Compared with the prior art, the beneficial effects of the utility model are:

[0029] The embodiments of the utility model provide a battery cell coating device and hot-melt equipment. The battery cell coating device has multiple clamping mechanisms, so that each hot-melt area on the battery cell coating film can correspond to an independent clamping mechanism, and the clamping parts of each clamping mechanism are also connected to an elastic part, so that each clamping part can float when clamping the hot-melt area, so that each clamping part can adaptively adjust the pressure on the hot-melt area to ensure that appropriate pressure is applied to each hot-melt area, thereby ensuring that each hot-melt area can be tightly pressed by the corresponding clamping part without damaging the battery cell. In this way, the pressing effect of the battery cell coating device on the battery cell coating is ensured and the hot-melt effect of the battery cell coating is improved; it can also avoid the situation where the pressure applied by the clamping part is too large and causes damage to the battery cell.

[0030] Furthermore, since each hot melt area has a single clamping mechanism to clamp it, it is easy to observe the pressing effect of each hot melt area, reducing the observation time, which is beneficial to improving the hot melt efficiency; it is also convenient for production line personnel to observe and repair. If there is a damaged clamping mechanism, the damaged clamping mechanism can be replaced alone, which is beneficial to reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 It is a structural schematic diagram of a battery core coating device disclosed in an embodiment of the utility model;

[0033] Figure 2 It is a structural schematic diagram of the clamping mechanism and the adapter disclosed in the embodiment of the utility model;

[0034] Figure 3 It is a structural schematic diagram of the clamping mechanism and the adapter disclosed in the embodiment of the utility model from another perspective;

[0035] Figure 4 It is a schematic diagram of the exploded structure of the clamping mechanism and the adapter disclosed in the embodiment of the utility model;

[0036] Figure 5 It is a partial schematic diagram of the battery core coating device disclosed in the embodiment of the utility model;

[0037] Figure 6 yes Figure 5 Cross-sectional view along AA direction;

[0038] Figure 7 yes Figure 6 Schematic diagram of the decomposition structure;

[0039] Figure 8 It is a structural schematic diagram of the clamping mechanism disclosed in the embodiment of the utility model;

[0040] Fig. 9 It is a schematic diagram of the exploded structure of the clamping mechanism disclosed in the embodiment of the utility model;

[0041] Fig.10 It is a schematic diagram of the exploded structure of the clamping mechanism disclosed in the embodiment of the utility model from another perspective;

[0042] Fig.11 It is a schematic diagram of the exploded structure of the battery core coating device disclosed in the embodiment of the utility model;

[0043] Fig.12 It is a structural schematic diagram of the hot melt equipment disclosed in the embodiment of the utility model.

[0044] Description of main reference numerals

[0045] 100-cell coating device;

[0046] 10-driving mechanism; 101-driving part; 102-telescopic part; 11-pressing mechanism; 111-mounting member; 1111-mounting part; 1112-protruding part; 1112a-guiding part; 112-pressing member; 1121-mounting hole; 113-elastic member; 114-rotating shaft; 114a-second step surface; 114b-fourth step surface; 1141-first shaft section; 1142-second shaft section; 1143-third shaft section; 1144-threaded hole; 115-locking assembly; 115a-fixing member; 1151-fixing part; 115b-locking structure; 1152-locking groove; 1153-locking pin; 1153a-first part; 1153b-second part; 1153c-third part; 116-bearing; 117-limiting member; 1171-receiving hole; 118-gasket; 1181-through hole; 118a-fastener; 119-first guide structure; 1191-first guide rail; 1192-first guide groove; 1193-middle slide rail; 1193a-slide groove; 12-adapter; 121-axial hole; 121a-first step surface; 121b-third step surface; 1211-first hole section; 1212-second hole section; 1213-third hole section; 13-base plate; 14-second guide structure; 141-second guide rail; 142-second guide groove;

[0047] 200-hot melt equipment;

[0048] 20-Hot melt mechanism. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0051] It is understood that the terms "first", "second", etc. used in this application can be used to describe various elements in this article, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of this application, a first guide structure can be referred to as a second guide structure, and similarly, a second guide structure can be referred to as a first guide structure. Both the first guide structure and the second guide structure are guide structures, but they are not the same guide structure.

[0052] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0053] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0054] Taking into account that the hot-melt effect of the battery cell coating film is affected by the pressing effect of the battery cell coating device on the battery cell coating film; the battery cell coating device in the related art is difficult to tightly press each hot-melt area, resulting in poor pressing effect of the battery cell coating device on the battery cell coating film, which in turn affects the hot-melt effect of the battery cell coating film. Based on this, the inventor proposed a new battery cell coating device.

[0055] See also Figure 1 The battery cell coating device 100 provided in the embodiment of the utility model includes a driving mechanism 10 and a plurality of clamping mechanisms 11, and the plurality of clamping mechanisms 11 are connected to the driving mechanism 10, so that the plurality of clamping mechanisms 11 can move under the driving action of the driving mechanism 10, so that each clamping mechanism 11 can move to press against a hot-melt area of ​​the battery cell coating film, so as to wrap the battery cell film on the side of the battery cell, thereby facilitating the subsequent process to use the hot-melt mechanism to hot-melt the hot-melt area. The battery cell coating device 100 includes a plurality of clamping mechanisms 11, and each clamping mechanism 11 can move to press against a hot-melt area under the driving action of the driving mechanism 10, so that each heat capacity position can be clamped by a single clamping mechanism 11, so that it is convenient to observe the pressing effect of each hot-melt area, reduce the observation time, and thus help to improve the hot-melt efficiency; at the same time, it is also convenient for production line personnel to observe and repair. If there is a damaged clamping mechanism 11, the damaged clamping mechanism 11 can be replaced alone, which is conducive to reducing maintenance costs.

[0056] The driving mechanism 10 provided in this embodiment may be, but is not limited to, a cylinder, a liquid cylinder, a servo motor or an electromagnet, etc. Specifically, the driving mechanism 10 may include a driving portion 101 and a telescopic portion 102 (for example, the driving portion 101 may be the main body of the cylinder, and the telescopic portion 102 may be the piston of the cylinder), the telescopic portion 102 is connected to the driving portion 101 and can move relative to the driving portion 101, and the telescopic portion 102 is also connected to the clamping mechanism 11 to drive the clamping mechanism 11 to move against the battery cell coating, thereby wrapping the battery cell on the side of the battery cell. In other words, by driving the telescopic portion 102 to extend or retract, the clamping mechanism 11 is driven to perform linear reciprocating motion to achieve the compression of the battery cell coating.

[0057] The battery cell coating film in the present application, namely Mylar film, can be made of thermoplastic material into a heat shrinkable film, such as a polyvinyl chloride heat shrinkable film, a biaxially oriented polyolefin shrinkable film, a polyester heat shrinkable film, and the like.

[0058] See also Figure 1 and Figure 2 Each clamping mechanism 11 includes a mounting member 111, a clamping member 112 and an elastic member 113. The mounting member 111 is connected to the driving mechanism 10, and the clamping member 112 is movably mounted on the mounting member 111. The driving mechanism 10 can be used to drive the mounting member 111 to move along a preset direction to drive the clamping member 112 to move to a hot-melt area on the battery cell coating. The elastic member 113 is provided on the mounting member 111, and the elastic member 113 is connected to the clamping member 112, so that the clamping member 112 can move relative to the mounting member 111 along the first direction under the abutment of the hot-melt area.

[0059] The first direction is opposite to the preset direction. For example, the preset direction may be Figure 1 and Figure 2 The backward direction in , the first direction can be Figure 1 and Figure 2 The material of the elastic member 113 may be but is not limited to silicone, rubber, plastic or foam.

[0060] In the process of using the battery cell coating device 100 provided in the present application to compress the battery cell coating film, the driving mechanism 10 drives multiple pressing mechanisms 11 to move toward the battery cell coating film to press the hot melt area against the side of the battery cell. In this process, due to the presence of the elastic member 113, the pressing member 112 of the pressing mechanism 11 can float when pressing the hot melt area to adaptively adjust the pressure on the hot melt area. For example, after the clamping piece 112 abuts against the hot-melt area, the clamping piece 112 will be abutted by the hot-melt area, thereby being relatively installed and moved along the first direction and compressing the elastic piece 113 to avoid applying excessive pressure to the hot-melt area. Instead, the pressure on the hot-melt area can be adaptively adjusted to ensure that appropriate pressure is applied to each hot-melt area, thereby ensuring that each hot-melt area can be tightly pressed by the corresponding clamping piece 112 without damaging the battery cell. In this way, the pressing effect of the battery cell coating device 100 on the battery cell coating can be ensured and the hot-melt effect of the battery cell coating can be improved; it can also avoid the situation where the pressure applied by the clamping piece 112 is too large and causes damage to the battery cell.

[0061] In the present application, each clamping mechanism 11 may be powered by a driving mechanism 10, and the cell film encapsulation device 100 may include multiple driving mechanisms 10, and a mounting plate may be connected to a driving mechanism 10; or multiple clamping mechanisms 11 may share a driving mechanism 10 to provide power, and multiple mounting plates may be respectively connected to the driving mechanism 10. The specific structure of the cell film encapsulation device 100 will be further described in detail below by taking multiple clamping mechanisms 11 sharing a driving mechanism 10 as an example.

[0062] See also Figures 2 to 4 The cell coating device 100 also includes an adapter 12, and multiple mounting members 111 are all installed on the adapter 12. The adapter 12 is connected to the driving mechanism 10, so that the multiple mounting members 111 are connected to the driving mechanism 10 through the adapter 12, so that the multiple clamping mechanisms 11 can share one driving mechanism 10 to provide power. Compared with the method in which each clamping mechanism 11 uses one driving mechanism 10 to provide power, the number of driving mechanisms 10 used is relatively small, the cost is relatively low, and the structure is relatively compact, which is conducive to miniaturization design.

[0063] In some optional embodiments, the adapter 12 is provided with a plurality of axial holes 121 . Each clamping mechanism 11 also includes a rotating shaft 114, each rotating shaft 114 is rotatably inserted into an axial hole 121, and each rotating shaft 114 is connected to a side of a mounting member 111 facing away from the clamping member 112, so that the clamping member 112 can swing, so that the clamping member 112 can rotate a corresponding angle according to the specific position of the hot melt area to adjust its own position. That is, when it is found that the clamping member 112 is not aligned with the hot melt area, and it is difficult to clamp the hot melt area, since the rotating shaft 114 connected to the mounting member 111 can rotate relative to the axial hole 121, when external force acts on the clamping member 112, the external force will act on the rotating shaft 114 through the clamping member 112 and the mounting member 111, so that the rotating shaft 114 rotates relative to the axial hole 121, thereby realizing the swing of the clamping member 112 to adjust the position of the clamping member 112 relative to the hot melt area, thereby ensuring that the clamping member 112 can face the hot melt area to clamp the hot melt area.

[0064] It should be noted that when each clamping mechanism 11 adopts a driving mechanism 10 to provide power, in order to realize the swing design of the clamping piece 112, the battery cell coating device 100 includes a plurality of adapters 12, each adapter 12 is connected to a driving mechanism 10, and each adapter 12 is provided with an axial hole 121, each rotating shaft 114 is rotatably passed through an axial hole 121, and each mounting member 111 is connected to a rotating shaft 114 on the side facing away from the clamping piece 112, so that when the rotating shaft 114 rotates relative to the axial hole 121, the clamping piece 112 can swing with the rotation of the rotating shaft 114.

[0065] See also Figure 4 Each clamping mechanism 11 also includes a locking assembly 115, which is installed on the adapter 12 and connected to the clamping member 112, and the locking assembly 115 can switch between a locked state and an unlocked state; wherein, when the clamping member 112 is not in contact with the hot-melt area, the locking assembly 115 is in a locked state, and the locking assembly 115 is used to limit the swinging of the clamping member 112 and limit the rotation of the rotating shaft 114 relative to the shaft hole 121; when the clamping member 112 is in contact with the hot-melt area, the locking assembly 115 is in an unlocked state, the clamping member 112 will not be constrained by the locking assembly 115, the clamping member 112 can swing, and the rotating shaft 114 can rotate relative to the shaft hole 121. The setting of the locking assembly 115 allows the clamping piece 112 to swing only after it abuts against the hot-melt area, and cannot swing when it does not abut against the hot-melt area, thereby preventing the clamping piece 112 from rotating, shaking or swinging at will when it does not abut against the hot-melt area, and accidentally colliding with the adjacent clamping piece 112, thereby avoiding damage to the clamping piece 112 and ensuring the service life of the clamping piece 112.

[0066] In some optional embodiments, the locking assembly 115 includes a fixing member 115a and a locking structure 115b. The fixing member 115a is installed on the adapter 12 and is located on one side of the mounting member 111. For example, the fixing member 115a can be fixedly installed on the adapter plate by screws, bolts, etc. The fixing member 115a has a fixing portion 1151, which is located on the side of the pressing member 112 away from the mounting member 111. The locking structure 115b includes a locking groove 1152 and a locking pin 1153 passing through the locking groove 1152. One of the locking groove 1152 and the locking pin 1153 is disposed on the pressing member 112, and the other of the locking groove 1152 and the locking pin 1153 is disposed on the fixing portion 1151. That is, when the locking groove 1152 is disposed on the pressing member 112, the locking pin 1153 is disposed on the fixing portion 1151, and when the locking groove 1152 is disposed on the fixing portion 1151, the locking pin 1153 is disposed on the pressing member 112. This application further describes the specific structure of the locking assembly 115 in detail by taking the locking groove 1152 disposed on the fixing portion 1151 and the locking pin 1153 disposed on the pressing member 112 as an example.

[0067] See also Figure 5 and Figure 6 The width of the locking groove 1152 in the second direction gradually increases along the first direction, wherein the second direction, the preset direction and the axial direction of the locking pin 1153 are perpendicular to each other. For example, the second direction may be Figure 5 and Figure 6 The left and right directions in the default direction can be Figure 5 and Figure 6 In the rearward direction, the axial direction of the locking pin 1153 can be Figure 5 and Figure 6 When the pressing member 112 is not in contact with the hot melt area and the locking assembly 115 is in a locked state, the locking pin 1153 is inserted into the position where the width of the locking groove 1152 in the second direction is the smallest. The locking pin 1153 at this position is abutted by the side wall of the locking groove 1152 to limit the swing of the pressing member 112, so as to avoid the pressing member 112 from swinging randomly when it is not in contact with the hot melt area and colliding with the adjacent pressing member 112 by mistake, thereby avoiding damage to the pressing member 112 and ensuring the service life of the pressing member 112; and when the locking pin 1153 slides relative to the locking groove 1152 along the first direction, the locking assembly 115 switches from the locked state to the unlocked state, and the pressing member 112 can swing at this time to adjust the position of the pressing member 112 relative to the hot melt area, thereby ensuring that the pressing member 112 can face the hot melt area to press the hot melt area.

[0068] Specifically, if Figure 1 , Figure 5 , Figure 6 as well as Figure 7As shown, when the driving mechanism 10 drives the clamping piece 112 to move along a preset direction so that the clamping piece 112 is pressed against the hot melt area, the clamping piece 112 is abutted against the hot melt area and drives the locking pin 1153 to move relative to the locking along the first direction. During this process, the clamping piece 112 will compress the elastic piece 113, and the locking pin 1153 will no longer be pressed against the side wall of the locking groove 1152, so that the locking pin 1153 is no longer restricted by the side wall of the locking groove 1152. At the same time, since the rotating shaft 114 indirectly connected to the clamping piece 112 (the rotating shaft 114 is connected to the clamping piece 112 through the mounting piece 111) can be relative to the shaft hole 121, the clamping piece 112 can swing under the action of external force to adjust the position of the clamping piece 112 relative to the hot melt area to ensure that the clamping piece 112 can face the hot melt area and press the hot melt area. When the clamping piece 112 is separated from the hot-melt area and no longer presses against the hot-melt area, the elastic piece 113 is no longer squeezed by the clamping piece 112 and gradually recovers its deformation, thereby pushing the clamping piece 112 to move in the opposite direction of the first direction, thereby realizing the resetting of the clamping piece 112 in the linear direction (first direction). At the same time, during this process, the clamping piece 112 will synchronously drive the locking pin 1153 to move in the opposite direction of the first direction and move back to the initial position relative to the locking groove 1152. The locking pin 1153 is restricted by the side wall of the locking groove 1152, allowing the clamping piece 112 to swing back to its initial angular position. It can be seen from the above that one power (i.e. the force provided by the elastic member 113 to restore the deformation) can realize the resetting of two degrees of freedom in the linear direction and the rotational direction, that is, the resetting of the clamping member 112 in the linear direction and the rotational direction can be realized by sharing the same elastic member 113, and there is no need to set two elastic members 113 to respectively realize the resetting of the clamping member 112 in the linear direction and the rotational direction. The number of elastic members 113 used is relatively small, the cost is relatively low, and the structure is relatively compact, which is conducive to miniaturized design.

[0069] Optionally, the locking groove 1152 may be in the shape of a triangle, and when the locking assembly 115 is in the locked state, the locking pin 1153 is inserted at an angle of the locking groove 1152. Exemplarily, the locking groove 1152 may be in the shape of an isosceles triangle or an equilateral triangle, and the locking groove 1152 is symmetrically arranged about the first direction, so that the amplitude of the leftward swing and the rightward swing of the pressing member 112 can be roughly the same, thereby avoiding that one of the leftward swing and the rightward swing has an excessively large amplitude and the other has an excessively small amplitude, so as to ensure that the pressing member 112 can align with the hot-melt area through its own swing to press the hot-melt area.

[0070] In some embodiments, the locking pin 1153 includes a first portion 1153a, a second portion 1153b, and a third portion 1153c that are sequentially connected, wherein the radial dimension of the second portion 1153b is greater than the radial dimension of the first portion 1153a, and the radial dimension of the second portion 1153b is smaller than the radial dimension of the third portion 1153c. Furthermore, the pressing member 112 is provided with a mounting hole 1121, and the third portion 1153c of the locking pin 1153 is embedded in the mounting hole 1121 to achieve assembly between the locking pin 1153 and the pressing member 112.

[0071] In some embodiments, Figure 6 and Figure 7 As shown, each clamping mechanism 11 also includes a bearing 116, which is arranged between the outer peripheral surface of the rotating shaft 114 and the hole wall surface of the shaft hole 121. In this way, the bearing 116 can be used to reduce the friction between the outer peripheral surface of the rotating shaft 114 and the hole wall surface of the shaft hole 121, so as to facilitate the rotation of the rotating shaft 114 relative to the shaft hole 121.

[0072] The shaft hole 121 in the present application can be a blind hole or a through hole. When the shaft hole 121 is a blind hole, the shaft hole 121 only passes through the side of the adapter 12 facing the mounting member 111; when the shaft hole 121 is a through hole, such as Figure 6 and Figure 7 As shown, the shaft hole 121 penetrates the two opposite side surfaces of the adapter 12 in the axial direction of the rotating shaft 114. And the shaft hole 121 may include a first hole section 1211 and a second hole section 1212 which are sequentially connected to each other, the radial dimension of the first hole section 1211 is smaller than the radial dimension of the second hole section 1212, so as to construct a first step surface 121a, and the first hole section 1211 is closer to the mounting member 111 than the second hole section 1212, and the rotating shaft 114 is penetrated in the first hole section 1211 and the second hole section 1212. Each clamping mechanism 11 also includes a stopper 117, which is connected to the side of the adapter 12 facing away from the mounting member 111, and the stopper 117 covers the second hole section 1212. The bearing 116 is disposed between the outer circumference of the rotating shaft 114 and the wall surface of the second hole section 1212 , and the bearing 116 abuts between the first step surface 121 a and the stopper 117 to prevent the bearing 116 from being separated from the shaft hole 121 .

[0073] The shaft hole 121 in the present application adopts a through hole. Even if the shaft hole 121 includes a first hole section 1211 and a second hole section 1212 with different radial dimensions, and the radial dimension of the first hole section 1211 is smaller than the radial dimension of the second hole section 1212, the bearing 116 can be installed in the second hole section 1212 from the opening of the second hole section 1212. At the same time, since the radial dimension of the first hole section 1211 is smaller than the radial dimension of the second hole section 1212, a first step surface 121a can be constructed to abut against the bearing 116, thereby preventing the bearing 116 from detaching from the shaft hole 121 from the opening of the first hole section 1211, and a limit member 117 is provided to utilize the limit member 117 to abut against the bearing 116, thereby preventing the bearing 116 from detaching from the shaft hole 121 from the opening of the second hole section 1212. The above design, by designing the shaft hole 121 as a stepped hole, forms a first step surface 121a that limits the bearing 116 from escaping from the shaft hole 121. Compared with the shaft hole 121 being a straight hole, the limiting member 117 is used to limit the bearing 116 from escaping from the shaft hole 121 from the opening of the first hole section 1211. The number of parts is relatively small, the cost is relatively low, and the structure is relatively compact, which is conducive to miniaturization design.

[0074] In some optional embodiments, such as Figure 6 and Figure 7 As shown, the rotating shaft 114 includes a first shaft segment 1141 and a second shaft segment 1142 which are connected to each other. The radial dimension of the first shaft segment 1141 is smaller than the radial dimension of the second shaft segment 1142 to construct a second step surface 114a. The first shaft segment 1141 is inserted into the first hole segment 1211, and the second shaft segment 1142 is inserted into the second hole segment 1212. The bearing 116 is sleeved on the outer periphery of the second shaft segment 1142 and abuts against the second step surface 114a. The above design designs the rotating shaft 114 as a stepped shaft adapted to the shaft hole 121 to form a second step surface 114a, and the second step surface 114a abuts against the bearing 116 to prevent the rotating shaft 114 from escaping from the shaft hole 121 through the opening of the second hole section 1212. Compared with the method of using additional components to limit the rotating shaft 114 from escaping from the shaft hole 121 through the opening of the second hole section 1212, the number of components is relatively small, the cost is relatively low, and the structure is relatively compact, which is conducive to miniaturization design.

[0075] In some optional embodiments, the axial hole 121 also includes a third hole section 1213, which is connected to the first hole section 1211, and the first hole section 1211 is located between the second hole section 1212 and the third hole section 1213, and the radial dimension of the third hole section 1213 is greater than the radial dimension of the first hole section 1211 to construct a third step surface 121b; the rotating shaft 114 also includes a third shaft section 1143, the third shaft section 1143 is connected to the side of the first shaft section 1141 facing away from the second shaft section 1142, and the radial dimension of the third shaft section 1143 is greater than the radial dimension of the first shaft section 1141 to construct a fourth step surface 114b, the third shaft section 1143 is penetrated by the third hole section 1213, and the fourth step surface 114b is in contact with the third step surface 121b. In this way, the rotating shaft 114 will not only be restricted by the bearing 116 and unable to separate from the shaft hole 121 from the second hole section 1212, but will also be restricted by the third step surface 121b of the shaft hole 121 and unable to separate from the shaft hole 121 from the second hole section 1212, thereby greatly reducing the risk of the rotating shaft 114 separating from the shaft hole 121 from the opening of the second hole section 1212.

[0076] In some optional embodiments, such as Figure 6 and Figure 7 As shown, the limit member 117 is provided with a receiving hole 1171 connected to the second hole section 1212, and each clamping mechanism 11 also includes a gasket 118, which is arranged on the end face of the rotating shaft 114, specifically, on the end face of the second shaft section 1142 facing away from the first shaft section 1141, and the gasket 118 is located in the receiving hole 1171, and the gasket 118 is in contact with the bearing 116. In this way, the rotating shaft 114 can abut against the bearing 116 through the gasket 118, and the bearing 116 is abutted by the first step surface 121a of the shaft hole 121 to limit the bearing 116 from being separated from the shaft hole 121 from the opening of the third hole section 1213. As a result, the rotating shaft 114 abuts against the bearing 116 through the gasket 118 and is restricted by the bearing 116 from being separated from the shaft hole 121 from the opening of the third hole section 1213. Compared with the method of using additional components to limit the rotating shaft 114 from being separated from the shaft hole 121 from the opening of the third hole section 1213, the number of components is relatively small, the cost is relatively low, and the structure is relatively compact, which is conducive to miniaturized design.

[0077] Moreover, the bearing 116 will not only be restricted by the limit piece 117 and cannot be separated from the shaft hole 121 from the second hole section 1212, but also be restricted by the gasket 118 and cannot be separated from the shaft hole 121 from the second hole section 1212, thereby greatly reducing the risk of the bearing 116 separating from the shaft hole 121 from the opening of the second hole section 1212.

[0078] Optionally, the gasket 118 is provided with a through hole 1181, the rotating shaft 114 is provided with a threaded hole 1144, and each clamping mechanism 11 further includes a fastener 118a, which passes through the through hole 1181 of the gasket 118 and is threadedly connected to the threaded hole 1144, thereby achieving connection between the gasket 118 and the rotating shaft 114. The fastener 118a is a bolt or a screw.

[0079] In some embodiments, in combination Figures 8 to 10 As shown, each clamping mechanism 11 also includes a first guide structure 119, which includes a first guide rail 1191 and a first guide groove 1192, wherein one of the first guide rail 1191 and the first guide groove 1192 is arranged on the mounting member 111, and the other of the first guide rail 1191 and the first guide groove 1192 is arranged on the clamping member 112, that is, when the first guide rail 1191 is arranged on the mounting member 111, the first guide groove 1192 is arranged on the clamping member 112; and when the first guide rail 1191 is arranged on the clamping member 112, the first guide groove 1192 is arranged on the mounting member 111. The first guide rail 1191 extends along the first direction, and the first guide groove 1192 is slidably connected to the first guide rail 1191, so that when the clamping member 112 moves relative to the mounting member 111 along the first direction, the cooperation between the first guide rail 1191 and the first guide groove 1192 can be utilized to guide the movement of the clamping member 112, thereby facilitating the movement of the clamping member 112 relative to the mounting member 111 along the first direction and improving the stability of the movement of the clamping member 112 relative to the mounting member 111 along the first direction.

[0080] Furthermore, the first guide structure 119 also includes an intermediate slide rail 1193, which is located between the first guide rail 1191 and the first guide groove 1192. The side of the intermediate slide rail 1193 facing the first guide rail 1191 is provided with a slide groove 1193a, and the side of the intermediate slide rail 1193 facing the first guide groove 1192 is provided with a guide protrusion 1183b; wherein, the slide groove 1193a is slidably connected to the first guide rail 1191, and the guide protrusion 1183b is slidably connected to the first guide groove 1192. According to the above design, when the clamping member 112 moves along the first direction relative to the mounting member 111, the first guide groove 1192 will slide relative to the middle slide rail 1193, and the slide groove 1193a of the middle slide rail 1193 will also slide relative to the first guide rail 1191. This can prevent the first guide rail 1191 and the first guide groove 1192 from getting stuck, thereby reducing the friction and wear between the first guide rail 1191 and the first guide groove 1192, and further helps to increase the service life of the first guide structure 119.

[0081] In some embodiments, the mounting member 111 includes a mounting portion 1111 and a protrusion 1112 arranged on one side of the mounting portion 1111, the clamping member 112 is movably mounted on the mounting portion 1111, the protrusion 1112 is provided with a guide portion 1112a, the elastic member 113 is passed through the outer periphery of the guide portion 1112a, and the elastic member 113 abuts between the clamping member 112 and the guide portion 1112a, so that when the elastic member 113 is deformed or restored, the guide portion 1112a can be used to guide the deformation of the elastic member 113, thereby facilitating the elastic member 113 to deform or restore its deformation.

[0082] See also Fig.11 And refer again Figure 1 The cell coating device 100 further includes a substrate 13 and a second guide structure 14, wherein the second guide structure 14 includes a second guide rail 141 and a second guide groove 142, wherein one of the second guide rail 141 and the second guide groove 142 is disposed on the substrate 13, and the other of the second guide rail 141 and the second guide groove 142 is disposed on the mounting member 111, specifically, the other of the second guide rail 141 and the second guide groove 142 is disposed on the adapter 12, so as to be indirectly disposed on the mounting member 111. When the second guide rail 141 is disposed on the substrate 13, the second guide groove 142 is disposed on the adapter 12; and when the second guide rail 141 is disposed on the adapter 12, the second guide groove 142 is disposed on the substrate 13. The second guide rail 141 extends along a preset direction, and the second guide groove 142 is slidably connected to the second guide rail 141, so that when the driving mechanism 10 drives the clamping member 112 to move along the preset direction, the cooperation between the second guide rail 141 and the second guide groove 142 can be utilized to guide the movement of the clamping member 112, thereby facilitating the movement of the clamping member 112 along the preset direction and improving the stability of the movement of the clamping member 112 along the preset direction.

[0083] See also Fig.12 The embodiment of the utility model also discloses a hot melt device, the hot melt device 200 includes a hot melt mechanism 20 and a battery cell coating device 100 as described in any of the aforementioned embodiments, the hot melt mechanism 20 is arranged on one side of the battery cell coating device 100, and the hot melt mechanism 20 is used to hot melt the hot melt area compressed by the clamping member 112 of the clamping mechanism 11. It can be understood that the hot melt device 200 having the battery cell coating device 100 as described in any of the aforementioned embodiments can bring the same or similar beneficial effects as the battery cell coating device 100, and the specific details can be referred to the description of the embodiment of the battery cell coating device 100, which will not be repeated here. Among them, the hot melt mechanism 20 in the present application can be a laser hot melt mechanism.

[0084] When the hot melt device in the present application is working, the driving mechanism pushes the clamping mechanism to move along a preset direction so that the clamping part of the clamping mechanism presses the hot melt area, and then uses the laser emitted by the hot melt mechanism to hot melt the hot melt area pressed by the clamping part, thereby hot-melting the battery cell coating device to be fixed on the lower plastic.

[0085] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0086] In addition, the above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the content of this specification should not be understood as limiting the present application, and the protection scope of the present application shall be subject to the attached claims.

Claims

1. A battery core coating device, characterized in that: include: a driving mechanism (10); and A plurality of clamping mechanisms (11), each of the clamping mechanisms (11) comprising a mounting member (111), a clamping member (112) and an elastic member (113), the mounting member (111) being connected to the driving mechanism (10), the clamping member (112) being movably mounted on the mounting member (111), and the driving mechanism (10) being used to drive the mounting member (111) to move along a preset direction so as to drive the clamping member (112) to move to a hot-melt region on a coating film of a clamped battery cell; The elastic member (113) is arranged on the mounting member (111), and the elastic member (113) is connected to the pressing member (112), so that the pressing member (112) can move relative to the mounting member (111) along a first direction under the abutment of the hot-melt area, wherein the first direction is opposite to the preset direction.

2. The battery core coating device according to claim 1, characterized in that: The battery cell coating device (100) further comprises an adapter (12), a plurality of the mounting members (111) are mounted on the adapter (12), and the adapter (12) is connected to the driving mechanism (10), so that the plurality of the mounting members (111) are connected to the driving mechanism (10) via the adapter (12).

3. The battery core coating device according to claim 1, characterized in that: The battery core coating device (100) further comprises an adapter (12), wherein the adapter (12) is connected to the driving mechanism (10), and the adapter (12) is provided with an axial hole (121); Each of the clamping mechanisms (11) further comprises a rotating shaft (114), the rotating shaft (114) being rotatably inserted into the shaft hole (121), and the side of the mounting member (111) facing away from the clamping member (112) being connected to the rotating shaft (114), so that the clamping member (112) can swing.

4. The battery core coating device according to claim 3, characterized in that: Each of the clamping mechanisms (11) further comprises a locking assembly (115), wherein the locking assembly (115) is mounted on the adapter (12) and connected to the clamping member (112), and the locking assembly (115) is capable of switching between a locked state and an unlocked state; When the pressing member (112) is not in contact with the hot-melt area, the locking assembly (115) is in the locking state, and the locking assembly (115) is used to limit the swing of the pressing member (112) and limit the rotation of the rotating shaft (114) relative to the shaft hole (121). When the pressing member (112) is in contact with the hot-melt area, the locking assembly (115) is in the unlocking state, and the pressing member (112) can swing, and the rotating shaft (114) can rotate relative to the shaft hole (121).

5. The battery core coating device according to claim 4, characterized in that: The locking assembly (115) comprises a fixing member (115a) and a locking structure (115b), wherein the fixing member (115a) is mounted on the adapter (12) and is located on one side of the mounting member (111), the fixing member (115a) comprises a fixing portion (1151), and the fixing portion (1151) is located on a side of the pressing member (112) away from the mounting member (111), and the locking structure (115b) comprises a locking groove (1152) and a locking member (1153) which is provided through the locking groove (1153). a locking pin (1153) of a groove (1152), one of the locking groove (1152) and the locking pin (1153) being arranged on the pressing member (112), the other of the locking groove (1152) and the locking pin (1153) being arranged on the fixing portion (1151), the width of the locking groove (1152) in the second direction gradually increasing along the first direction, and the second direction, the preset direction and the axial direction of the locking pin (1153) being perpendicular to each other; When the locking assembly (115) is in the locking state, the locking pin (1153) is inserted into the locking groove (1152) at a position where the width in the second direction is the smallest, and the locking pin (1153) is abutted by the side wall of the locking groove (1152) to limit the swinging of the pressing member (112); When the locking pin (1153) slides relative to the locking groove (1152) along the first direction, the locking assembly (115) switches from the locked state to the unlocked state.

6. The battery core coating device according to claim 3, characterized in that: Each of the pressing mechanisms (11) further comprises a bearing (116), wherein the bearing (116) is arranged between the outer peripheral surface of the rotating shaft (114) and the hole wall surface of the shaft hole (121).

7. The battery core coating device according to claim 6, characterized in that: The shaft hole (121) passes through two opposite side surfaces of the adapter (12) in the axial direction of the rotating shaft (114), and the shaft hole (121) comprises a first hole section (1211) and a second hole section (1212) which are sequentially connected to each other, the radial dimension of the first hole section (1211) is smaller than the radial dimension of the second hole section (1212) to construct a first step surface (121a), and the first hole section (1211) is closer to the mounting member (111) than the second hole section (1212), and the rotating shaft (114) is penetrated by the first hole section (1211) and the second hole section (1212); Each of the clamping mechanisms (11) further comprises a limiting member (117), the limiting member (117) being connected to a side of the adapter (12) facing away from the mounting member (111), and the limiting member (117) covering the second hole section (1212); The bearing (116) is arranged between the outer peripheral surface of the rotating shaft (114) and the hole wall surface of the second hole section (1212), and the bearing (116) abuts between the first step surface (121a) and the limiting member (117).

8. The battery core coating device according to claim 7, characterized in that: The rotating shaft (114) comprises a first shaft segment (1141) and a second shaft segment (1142) which are connected to each other. The radial dimension of the first shaft segment (1141) is smaller than the radial dimension of the second shaft segment (1142) so as to construct a second step surface (114a). The first shaft segment (1141) is inserted into the first hole segment (1211), and the second shaft segment (1142) is inserted into the second hole segment (1212). The bearing (116) is sleeved on the outer periphery of the second shaft segment (1142) and abuts against the second step surface (114a).

9. The battery core coating device according to claim 8, characterized in that: The axial hole (121) further comprises a third hole section (1213), the third hole section (1213) is communicated with the first hole section (1211), the first hole section (1211) is located between the second hole section (1212) and the third hole section (1213), and the radial dimension of the third hole section (1213) is greater than the radial dimension of the first hole section (1211), so as to construct a third step surface (121b); The rotating shaft (114) further comprises a third shaft segment (1143), wherein the third shaft segment (1143) is connected to a side of the first shaft segment (1141) facing away from the second shaft segment (1142), wherein a radial dimension of the third shaft segment (1143) is greater than a radial dimension of the first shaft segment (1141) so as to construct a fourth step surface (114b), wherein the third shaft segment (1143) is passed through the third hole segment (1213), and the fourth step surface (114b) abuts against the third step surface (121b).

10. The battery core coating device according to claim 7, characterized in that: The limiting member (117) is provided with a receiving hole (1171) connected to the second hole section (1212), and each of the clamping mechanisms (11) further includes a gasket (118), wherein the gasket (118) is arranged on the end surface of the rotating shaft (114) and is located in the receiving hole (1171), and the gasket (118) is in contact with the bearing (116).

11. The battery core coating device according to any one of claims 1 to 10, characterized in that: The mounting member (111) comprises a mounting portion (1111) and a protruding portion (1112) arranged on one side of the mounting portion (1111); the pressing member (112) is movably mounted on the mounting portion (1111); the protruding portion (1112) is provided with a guiding portion (1112a); the elastic member (113) is passed through the outer periphery of the guiding portion (1112a), and the elastic member (113) abuts between the pressing member (112) and the guiding portion (1112a).

12. The battery core coating device according to any one of claims 1 to 10, characterized in that: Each of the clamping mechanisms (11) further includes a first guide structure (119), the first guide structure (119) including a first guide rail (1191) and a first guide groove (1192), one of the first guide rail (1191) and the first guide groove (1192) being arranged on the mounting member (111), the other of the first guide rail (1191) and the first guide groove (1192) being arranged on the clamping member (112), the first guide rail (1191) extending along the first direction, and the first guide groove (1192) being slidably connected to the first guide rail (1191).

13. The battery core coating device according to claim 12, characterized in that: The first guide structure (119) also includes an intermediate slide rail (1193), wherein the intermediate slide rail (1193) is located between the first guide rail (1191) and the first guide groove (1192), and the intermediate slide rail (1193) is slidably connected to the first guide groove (1192), and a slide groove (1193a) is provided on a side of the intermediate slide rail (1193) facing the first guide rail (1191), and the slide groove (1193a) is slidably connected to the first guide rail (1191).

14. The battery core coating device according to any one of claims 1 to 10, characterized in that: The cell coating device (100) further comprises a substrate (13) and a second guide structure (14); the second guide structure (14) comprises a second guide rail (141) and a second guide groove (142); one of the second guide rail (141) and the second guide groove (142) is arranged on the substrate (13); the other of the second guide rail (141) and the second guide groove (142) is arranged on the mounting member (111); the second guide rail (141) extends along the preset direction; and the second guide groove (142) is slidably connected to the second guide rail (141).

15. A hot melt device, characterized in that: The hot melt device (200) comprises a hot melt mechanism (20) and a battery cell coating device (100) as described in any one of claims 1 to 14, wherein the hot melt mechanism (20) is arranged on one side of the battery cell coating device (100), and the hot melt mechanism (20) is used to hot melt the hot melt area compressed by the compression member (112) of the compression mechanism (11).

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