Bearing device and film covering mechanism

Abstract

The embodiment of the invention provides a bearing device and a film covering mechanism, the bearing device is used for a main-grid-free battery piece, the main-grid-free battery piece is provided with a plurality of welding strips arranged at intervals, the bearing device is used for bearing a to-be-installed covering film, the bearing device comprises a substrate, the substrate is provided with a first area and a second area, and the first area and the second area are arranged in the thickness direction of the bearing device. The welding strip is located in the projection range of the first area, and the second area is the area outside the first area. Wherein a clamping assembly is arranged in the first area, a supporting assembly is arranged in the second area, the clamping assembly is used for clamping a welding strip, the supporting assembly is used for supporting a to-be-installed covering film, and the height H1 of the clamping assembly is smaller than the height H2 of the supporting assembly in the thickness direction of the bearing device. When the bearing device bears the to-be-installed coating film and abuts against the main-grid-free battery piece, the supporting assembly can abut against the end of the main-grid-free battery piece in advance, so that the end of the to-be-installed coating film can be fixed in advance, and it is avoided that the to-be-installed coating film deviates, and preparation of the main-grid-free battery piece is affected.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic module technology, and in particular to a carrying device and a coating mechanism. Background Art

[0002] During the production of busbarless cells, a film is applied to the cells and laminated. This film serves to secure the soldering ribbons to the cells during string assembly. During the lamination process, a heating baseplate at the bottom of the cells heats the cells and the film, causing a slight melting of the film, thereby initially securing it to the cells and facilitating subsequent lamination. However, during the heating process, the edges of the film can easily separate from the cells, causing the film to shift position and affecting the subsequent lamination process. Summary of the Invention

[0003] The present application provides a carrying device and a coating mechanism, which are useful for solving the technical problem in the prior art that the coating to be installed is easily deviated when coating a battery cell without a main grid.

[0004] In a first aspect, an embodiment of the present application provides a carrying device for a busbarless battery cell, wherein the busbarless battery cell has a plurality of welding strips arranged at intervals; the carrying device is used to carry a coating to be installed; the carrying device includes a substrate, wherein the substrate has a first area and a second area, and along the thickness direction of the carrying device, the welding strip is located within the projection range of the first area, and the second area is an area outside the first area; wherein a clamping assembly is provided within the first area, and a supporting assembly is provided within the second area; the clamping assembly is used to clamp the welding strip, and the supporting assembly is used to support the coating to be installed; along the thickness direction of the carrying device, the height H1 of the clamping assembly is less than the height H2 of the supporting assembly.

[0005] In this embodiment, a clamping assembly is provided in a first region of the substrate corresponding to the soldering ribbon. When the supporting device carries the coating to be installed and abuts the busbar-less solar cell, the clamping assembly in the first region can clamp the soldering ribbon, thereby fixing its position. During the subsequent heating of the coating to be installed, the soldering ribbon is always fixed in position, preventing the soldering ribbon from shifting during the coating process, which could affect the subsequent preparation of the busbar-less solar cell. Simultaneously, a supporting assembly is provided in a second region of the substrate corresponding to the end of the busbar-less solar cell. Along the thickness direction of the supporting device, the height H1 of the supporting assembly is greater than the height H2 of the clamping assembly. This allows the supporting assembly in the second region to support the entire coating when the supporting device carries the coating, preventing wrinkles in the coating that could affect the smoothness of the coating when attached to the busbar-less solar cell. At the same time, when the carrying device carries the film to be installed and abuts against the main grid-less battery cell, the supporting component can first abut against the end of the main grid-less battery cell, so that the supporting component and the main grid-less battery cell can first clamp the end of the film to be installed to fix the two ends of the film to be installed, thereby avoiding the displacement of the film to be installed in subsequent heating steps, affecting the preparation of the main grid-less battery cell.

[0006] In a specific embodiment, the clamping assembly includes at least two first protrusions arranged at intervals, and the welding strip is located between the two first protrusions of the clamping assembly; the supporting assembly includes at least one second protrusion; along the thickness direction of the supporting device, the height of the first protrusion is less than the height of the second protrusion.

[0007] In a specific embodiment, a plurality of the clamping assemblies are spaced apart in the first region along the length direction and / or width direction of the carrying device, and the plurality of the clamping assemblies are aligned along the length direction and / or width direction of the carrying device.

[0008] In a specific embodiment, the length of the first protrusion is smaller than the length of the second protrusion; and the width of the first protrusion is equal to the width of the second protrusion.

[0009] In a specific embodiment, along the length direction of the carrying device, the first protrusion and the second protrusion are flush.

[0010] In a specific embodiment, the substrate is further provided with a hot stamping head; along the thickness direction of the carrying device, the thickness of the film to be installed is H4, and the height H3 of the hot stamping head satisfies H2≤H3<H2+H4.

[0011] In a specific embodiment, a plurality of the spot ironing heads are arranged on the substrate; at least some of the spot ironing heads are arranged at the end of the first area.

[0012] In a specific embodiment, the hot iron head is arranged between adjacent clamping components.

[0013] In a specific embodiment, the carrying device is further provided with a plurality of adsorption holes; the adsorption holes are used to adsorb the film to be installed onto the carrying device.

[0014] In a second aspect, embodiments of the present application provide a laminating mechanism comprising: a heating device and a supporting device. The supporting device, the laminating film to be installed, the busbarless solar cell, and the heating device are sequentially arranged along the thickness direction of the laminating mechanism; the heating device is configured to heat the supporting device, the laminating film to be installed, and the busbarless solar cell.

[0015] In this embodiment, the laminating mechanism includes the supporting device described in the above embodiment. During the laminating operation on the busbarless solar cell, the laminating mechanism can secure the welding ribbon and the film to be installed, preventing the position of the welding ribbon and the film to be installed from shifting during the laminating process. This can improve the connection accuracy between the film to be installed and the busbarless solar cell, thereby improving the production quality of the busbarless solar cell. Furthermore, the laminating mechanism can also include a heating device, with the supporting device, the film to be installed, the busbarless solar cell, and the heating device arranged sequentially along the thickness direction of the laminating mechanism. This allows the heating device to heat the film to be installed while also supporting and accommodating the busbarless solar cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. 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 any creative work.

[0017] Figure 1 A schematic structural diagram of a laminating mechanism and a busbar-less solar cell provided in this application in a specific embodiment;

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the middle load-bearing device;

[0019] Figure 3 for Figure 2 Partial cross-sectional view.

[0020] Reference numerals:

[0021] 1- Laminating mechanism;

[0022] 11-carrying device;

[0023] 111-Substrate;

[0024] 111a-first area;

[0025] 111b-Second area;

[0026] 112- clamping assembly;

[0027] 112a-first protrusion;

[0028] 113-Support assembly;

[0029] 113a- second raised portion;

[0030] 114-Perm hair;

[0031] 115-adsorption hole;

[0032] 12- Heating device;

[0033] 2- No main grid cell;

[0034] 21- welding strip;

[0035] 3-Waiting for film installation. DETAILED DESCRIPTION

[0036] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0037] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0038] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "an", "the" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0039] It should be understood that the term "and / or" as used herein simply describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the associated objects.

[0040] Photovoltaic cells, due to their pollution-free, geographically unrestricted, and inexhaustible advantages, have become a major focus of renewable energy development. Busbarless cells, a type of photovoltaic cell, require a layer of film covering the cells and laminating them prior to the busbarless cell stringing process during production. This allows the soldering ribbons to be secured to the cells. During the laminating operation, a heating base at the bottom of the busbarless cell heats the cell and the film, causing it to slightly melt and initially secure the film to the cell, facilitating subsequent lamination. However, during the heating process, the edges of the film can easily detach from the busbarless cell, causing the film to shift in position and affecting the subsequent lamination process.

[0041] In order to solve the above technical problems, Figures 1 to 3 As shown, an embodiment of the present application provides a carrier device 11 and a coating mechanism 1 including the carrier device 11. The carrier device 11 is used for a busbarless solar cell 2 having a plurality of spaced-apart solder strips 21. The carrier device 11 is used to carry a coating 3 to be installed. The carrier device 11 may include a substrate 111 having a first region 111a and a second region 111b. Along the thickness direction Z of the carrier device 11, the solder strips 21 are located within the projection range of the first region 111a, and the second region 111b is an area outside the first region 111a. A clamping assembly 112 is provided in the first region 111a, and a supporting assembly 113 is provided in the second region 111b. The clamping assembly 112 is used to clamp the solder strips 21, and the supporting assembly 113 is used to support the coating 3 to be installed. Along the thickness direction Z of the carrier device 11, the height H1 of the clamping assembly 112 is less than the height H2 of the supporting assembly 113.

[0042] In this embodiment, a clamping assembly 112 is provided in the first area 111a of the substrate 111 corresponding to the welding strip 21. When the carrying device 11 carries the coating 3 to be installed and abuts against the main-grid-less battery cell 2, the clamping assembly 112 in the first area 111a can clamp the welding strip 21, thereby fixing the position of the welding strip 21. In the subsequent process of heating the coating 3 to be installed, the position of the welding strip 21 can always be fixed, thereby avoiding the welding strip 21 from shifting during the coating process, which affects the subsequent preparation process of the main-grid-less battery cell 2.

[0043] At the same time, a support assembly 113 is provided in the second region 111b of the substrate 111 corresponding to the end of the busbarless solar cell 2, and along the thickness direction Z of the carrier 11, the height H1 of the support assembly 113 is greater than the height H2 of the clamping assembly 112. This allows the carrier 11 to support the entire film 3 when carrying the film 3 to be installed, thereby preventing wrinkles in the film 3 to be installed, which would affect the flatness of the film 3 to be installed when attached to the busbarless solar cell 2. Furthermore, when the carrier 11 carries the film 3 to be installed and abuts the busbarless solar cell 2, the support assembly 113 can first abut the end of the busbarless solar cell 2, thereby enabling the support assembly 113 and the busbarless solar cell 2 to first clamp the end of the film 3 to be installed, thereby fixing both ends of the film 3 to be installed, and preventing the film 3 to be installed from shifting during subsequent heating steps, which would affect the preparation of the busbarless solar cell 2.

[0044] like Figure 1 and Figure 2 As shown, the laminating mechanism 1 may further include a heating device 12. The supporting device 11, the coating to be installed 3, the busbar-less solar cell 2, and the heating device 12 are sequentially arranged along the thickness direction of the laminating mechanism 1. The heating device 12 is used to heat the supporting device 11, the coating to be installed 3, and the busbar-less solar cell 2.

[0045] In this embodiment, the laminating mechanism 1 includes the supporting device 11 described in the above embodiment. When laminating the busbarless cell 2, it can fix the welding ribbon 21 and the to-be-installed film 3, preventing the position of the welding ribbon 21 and the to-be-installed film 3 from shifting during the laminating process. This can improve the connection accuracy between the to-be-installed film 3 and the busbarless cell 2, thereby improving the preparation quality of the busbarless cell 2. At the same time, the laminating mechanism 1 can also include a heating device 12, and the supporting device 11, the to-be-installed film 3, the busbarless cell 2, and the heating device 12 are arranged in sequence along the thickness direction of the laminating mechanism 1. The heating device 12 can heat the to-be-installed film 3 while also supporting and supporting the busbarless cell 2.

[0046] The heating device 12 may be a heating plate with heating wires, which improves heating uniformity and also improves the flatness of the supporting process for the busbarless solar cell 2. In other embodiments, the heating device 12 may also be a component of other forms, and the specific configuration of the heating device 12 is not limited in this embodiment of the present application.

[0047] In the above embodiment, the coating mechanism 1 may also be provided with components such as a loading position, a unloading position, a conveying device and a robotic arm (not shown in the figure), wherein the loading position is used to load the coating 3 to be installed and the main grid-less battery cell 2, and the unloading position is used to unload the main grid-less battery cell 2 after the coating is completed. The robotic arm is used to drive the carrying device 11 to move to carry the coating 3 to be installed and install the coating 3 to be installed on the main grid-less battery cell 2, and the conveying device is used to convey the main grid-less battery cell 2 to move between the loading position and the unloading position.

[0048] In a specific embodiment, Figures 1 to 3 As shown, the clamping assembly 112 may include at least two first protrusions 112a spaced apart from each other, and the welding ribbon 21 is located between the two first protrusions 112a of the clamping assembly 112. The supporting assembly 113 includes at least one second protrusion 113a, and along the thickness direction Z of the carrying device 11, the height of the first protrusion 112a is less than the height of the second protrusion 113a.

[0049] In this embodiment, the clamping assembly 112 may include at least two first raised portions 112a spaced apart from each other. When the carrying device 11 carries the cover film 3 to be mounted and abuts the busbar-less solar cell 2, the soldering ribbon 21 can be clamped between the two first raised portions 112a, thereby fixing the position of the soldering ribbon 21 and preventing it from shifting. Furthermore, the clamping assembly 112 consisting of the first raised portions 112a has the advantages of being simple in structure and easy to implement.

[0050] At the same time, the support assembly 113 can include at least one second raised portion 113a, and along the thickness direction Z of the carrier 11, the height of the second raised portion 113a is greater than the height of the first raised portion 112a. When the carrier 11 carries the coating 3 to be installed, the second raised portions 113a at both ends can support the coating 3 to be installed, preventing wrinkles and other phenomena on the coating 3 to be installed, which would affect the flatness of the coating 3 to be installed. When the carrier 11 carries the coating 3 to be installed and abuts the busbarless solar cell 2, the second raised portions 113a can first abut the ends of the busbarless solar cell 2, thereby pre-fixing the ends of the coating 3 to be installed and preventing the position of the coating 3 to be installed from shifting during subsequent steps. The support assembly 113 consisting of the second raised portions 113a also has the advantages of being simple in structure and easy to implement. In addition, the number of first protrusions 112a in the clamping component 112 can be adjusted according to the area of the film 3 to be installed. When the area of the film 3 to be installed is large, two or more second protrusions 113a can be correspondingly provided in the supporting component 113 to further increase the contact area between the second protrusions 113a and the film 3 to be installed, thereby improving the supporting effect of the supporting component 113 on the film 3 to be installed.

[0051] In a specific embodiment, Figures 1 to 3 As shown, along the length direction X and / or width direction Y of the carrying device 11 , a plurality of clamping assemblies 112 are spaced apart in the first area 111 a , and the plurality of clamping assemblies 112 are aligned along the length direction X and / or width direction Y of the carrying device 11 .

[0052] In this embodiment, multiple solder ribbons 21 are spaced apart on the busbarless solar cell 2 along the length direction X of the carrier device 11. Therefore, multiple clamping assemblies 112 are spaced apart on the first region 111a of the substrate 111 along the length direction X of the carrier device 11. When the carrier device 11 carries the cover film 3 to be mounted and abuts the busbarless solar cell 2, the multiple clamping assemblies 112 can simultaneously clamp and secure the multiple solder ribbons 21. Furthermore, the multiple clamping assemblies 112 can be aligned along the length direction X of the carrier device 11, thereby improving the positional consistency of the multiple clamping assemblies 112 and reducing the difficulty of manufacturing the carrier device 11.

[0053] At the same time, the multiple soldering ribbons 21 on the busbarless solar cell 2 all extend along the width direction Y of the carrier device 11. Therefore, multiple clamping assemblies 112 are spaced apart on the first region 111a of the substrate 111 along the width direction Y of the carrier device 11. When the carrier device 11 carries the cover film 3 to be mounted and abuts the busbarless solar cell 2, any soldering ribbon 21 on the busbarless solar cell 2 can be simultaneously clamped by multiple clamping assemblies 112, further enhancing the securing effect of the soldering ribbon 21. Furthermore, the multiple clamping assemblies 112 can be aligned along the width direction Y of the carrier device 11 to ensure effective clamping of the soldering ribbon 21 while also improving the positional consistency of the multiple clamping assemblies 112 and reducing the difficulty of manufacturing the carrier device 11.

[0054] In a specific embodiment, Figure 1 and Figure 2 As shown, the length of the first protrusion 112a may be smaller than the length of the second protrusion 113a. The width of the first protrusion 112a may be equal to the width of the second protrusion 113a.

[0055] In this embodiment, the clamping assembly 112 clamps the solder ribbon 21 through the gap between the two spaced-apart first protrusions 112a, and the supporting assembly 113 supports the film 3 to be installed by abutting the top of the second protrusion 113a against the film 3 to be installed. Therefore, the length of the first protrusion 112a is reduced. While being able to clamp the solder ribbon 21, the occupied area of the first protrusion 112a can also be reduced, thus avoiding interference between the multiple clamping assemblies 112 and reducing costs. At the same time, increasing the length of the second protrusion 113a can increase the contact area between the second protrusion 113a and the film 3 to be installed, thereby further improving the support effect of the support assembly 113 on the film 3 to be installed. When the supporting device 11 carries the film 3 to be installed and abuts against the busbarless solar cell 2, the contact area between the support assembly 113 and the busbarless solar cell 2 can also be increased, thereby improving the fixing effect of the support assembly 113 on the film 3 to be installed and the busbarless solar cell 2, and preventing the film 3 to be installed from shifting. In the embodiment of the present application, the lengths of the first protrusion 112a and the second protrusion 113a are not specifically limited and can be adaptively adjusted according to actual usage.

[0056] At the same time, making the width of the first protrusion 112a equal to the width of the second protrusion 113a can improve the dimensional consistency of the clamping assembly 112 and the support assembly 113 on the carrier 11, thereby reducing the difficulty of manufacturing the carrier 11. The width D1 of the first protrusion 112a and the second protrusion 113a can satisfy 2mm≤D1≤3mm. For example, D1 can be 2mm, 2.5mm, 3mm, etc.

[0057] In other embodiments, the width D1 of the first protrusion 112a and the second protrusion 113a may also be other values. In the embodiment of the present application, the specific values of the first protrusion 112a and the second protrusion 113a are not limited and can be adaptively adjusted according to actual usage.

[0058] In a specific embodiment, Figure 1 and Figure 2 As shown, along the length direction X of the carrying device 11 , the first protrusion 112 a and the second protrusion 113 a may be flush.

[0059] In this embodiment, the first protrusion 112a and the second protrusion 113a are made flush along the length direction X of the carrying device 11. While satisfying the clamping effect of the first protrusion 112a and the supporting effect of the second protrusion 113a, the position consistency of the first protrusion 112a and the second protrusion 113a can also be improved, thereby reducing the difficulty of preparing the carrying device 11.

[0060] When the carrying device 11 carries the coating 3 to be installed and abuts against the main grid-less battery cell 2, the heating device 12 can heat the entire coating 3 to be installed, causing the coating 3 to be slightly melted, so that the coating 3 to be installed can be initially adhered to the main grid-less battery cell 2. However, before the lamination step, the edges and other positions of the coating 3 to be installed are prone to cracking, causing part of the structure of the coating 3 to be installed at this position to be separated from the main grid-less battery cell 2, resulting in the inability to effectively fix the welding tape 21 in some areas of the coating 3 to be installed.

[0061] In order to solve the above technical problems, Figures 1 to 3 As shown, the base plate 111 of the carrier 11 may also be provided with a hot stamping head 114. Along the thickness direction Z of the carrier 11, the thickness of the film 3 to be mounted is H4, and the height H3 of the hot stamping head 114 satisfies H2≤H3

[0062] In this embodiment, by providing a spot ironing head 114 on the substrate 111, the location of the film 3 to be installed that is prone to cracking can be reheated, thereby increasing the degree of melting at that location of the film 3 to be installed, thereby further improving the connection reliability of the film 3 to be installed at that location with the busbar-less solar cell 2, reducing the possibility of cracking of the film 3 to be installed, and ensuring the fixing effect of the entire film 3 to be installed on the welding ribbon 21. In addition, along the thickness direction Z of the supporting device 11, the thickness of the film 3 to be installed is H4, and the height H3 of the spot ironing head 114 must satisfy H2≤H3<H2+H4. Specifically, the height of the spot ironing head 114 is greater than or equal to the height of the support assembly 113. When the supporting device 11 carries the film 3 to be installed and abuts the busbar-less solar cell 2, the spot ironing head 114 can contact the film 3 to be installed, thereby allowing the spot ironing head 114 to reheat the film 3 to be installed to increase the degree of melting of the film 3 to be installed. The height of the ironing head 114 is also made smaller than the height of the supporting assembly 113 plus the thickness of the coating 3 to be installed, so as to avoid the ironing head 114 being too high. When the carrying device 11 carries the coating 3 to be installed and abuts against the main-grid-less battery cell 2, the ironing head 114 and the main-grid-less battery cell 2 interfere with each other, causing the ironing head 114 to damage the main-grid-less battery cell 2.

[0063] In addition, by arranging the spot ironing head 114 on the substrate 111, there is no need to set up additional spot ironing equipment in the laminating mechanism 1, so that the laminating mechanism 1 has the spot ironing function and can also improve the integration of the laminating mechanism 1 and reduce costs.

[0064] In a specific embodiment, Figure 1 and Figure 2 As shown, a plurality of ironing heads 114 may be provided on the substrate 111 , and at least some of the ironing heads 114 are provided at the end of the first area 111 a .

[0065] ​In this embodiment, the position of the film to be installed 3 corresponding to the first area 111a plays a fixing role on the welding tape 21, which makes the film to be installed 3 corresponding to the end of the first area 111a prone to cracking. Therefore, a plurality of hot ironing heads 114 can be provided on the substrate 111, and at least some of the hot ironing heads 114 are provided at the end of the first area 111a, so that the film to be installed 3 and the position corresponding to the end of the first area 111a can be reheated to improve the melting degree of the film to be installed 3 at this position, so as to improve the connection reliability between the film to be installed 3 at this position and the main grid-free battery cell 2, and avoid cracking at this position of the film to be installed 3.

[0066] In the above embodiment, if Figure 1 and Figure 2 As shown, the ironing head 114 can be disposed between adjacent clamping assemblies 112 .

[0067] In this embodiment, the spot ironing head 114 can be disposed between adjacent clamping assemblies 112. Since the soldering ribbon 21 is fixed within the gap between the two first protrusions 112a of the clamping assembly 112, the structure of the film 3 to be installed in the vicinity of the clamping assembly 112 is prone to cracking. Therefore, disposing the spot ironing head 114 between adjacent clamping assemblies 112 can improve the connection reliability between the film 3 to be installed and the busbar-less solar cell 2 at that location, and avoid cracking of the film 3 to be installed at that location. Disposing the spot ironing head 114 between adjacent clamping assemblies 112 also prevents the spot ironing head 114 from interfering with the clamping assemblies 112, which could prevent the soldering ribbon 21 from being properly fixed and affect the preparation process of the busbar-less solar cell 2.

[0068] In a specific embodiment, Figure 1 and Figure 2 As shown, the carrying device 11 may also be provided with a plurality of adsorption holes 115 . The adsorption holes 115 are used to adsorb the coating 3 to be mounted on the carrying device 11 .

[0069] In this embodiment, a plurality of adsorption holes 115 may also be provided on the carrier device 11. The adsorption holes 115 are used to adsorb the coating 3 to be installed on the carrier device 11, which can improve the connection reliability between the carrier device 11 and the coating 3 to be installed, and avoid the coating 3 to be installed being separated from the carrier device 11 before the coating 3 to be installed is fixed on the main grid-less battery cell 2, resulting in the carrier device 11 being unable to transport the coating 3 to be installed to the main grid-less battery cell 2, affecting subsequent processes.

[0070] The coating mechanism 1 may also be provided with a vacuum generator (not shown in the figure), which may be provided on a side of the substrate 111 away from the coating 3 to be installed. The vacuum generator may be connected to the adsorption holes 115 via a pipeline (such as a hose, etc.), so that when the vacuum generator is in operation, the vacuum generated by the vacuum generator can cause the adsorption holes 115 to generate an adsorption force, which in turn causes the coating 3 to be installed to be adsorbed onto the carrier device 11. When it is necessary to separate the carrier device 11 from the coating 3 to be installed, the vacuum generator only needs to be stopped, so that the adsorption holes 115 cannot generate an adsorption force, and the carrier device 11 can be separated from the coating 3 to be installed.

[0071] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A carrying device, characterized in that: Used for a busbar-less battery cell (2), the busbar-less battery cell (2) having a plurality of welding strips (21) arranged at intervals; the carrying device (11) is used for carrying a coating (3) to be installed; The carrier device (11) comprises a substrate (111), the substrate (111) having a first area (111a) and a second area (111b), along a thickness direction of the carrier device (11), the welding strip (21) is located within a projection range of the first area (111a), and the second area (111b) is an area outside the first area (111a); A clamping assembly (112) is provided in the first area (111a), and a supporting assembly (113) is provided in the second area (111b); the clamping assembly (112) is used to clamp the welding strip (21), and the supporting assembly (113) is used to support the coating (3) to be installed; along the thickness direction of the carrying device (11), the height H1 of the clamping assembly (112) is smaller than the height H2 of the supporting assembly (113).

2. The carrying device according to claim 1, characterized in that: The clamping assembly (112) comprises at least two first protrusions (112a) spaced apart from each other, and the welding strip (21) is located between the two first protrusions (112a) of the clamping assembly (112); The supporting assembly (113) comprises at least one second protrusion (113a); along the thickness direction of the carrying device (11), the height of the first protrusion (112a) is smaller than the height of the second protrusion (113a).

3. The carrying device according to claim 2, characterized in that: Along the length direction and / or width direction of the carrying device (11), the first area (111a) is provided with a plurality of the clamping assemblies (112) at intervals, and the plurality of the clamping assemblies (112) are aligned along the length direction and / or width direction of the carrying device (11).

4. The carrying device according to claim 3, characterized in that: The length of the first protrusion (112a) is smaller than the length of the second protrusion (113a); and the width of the first protrusion (112a) is equal to the width of the second protrusion (113a).

5. The carrying device (11) according to claim 4, characterized in that Along the length direction of the carrying device (11), the first protrusion (112a) and the second protrusion (113a) are flush.

6. The carrying device according to any one of claims 1 to 5, characterized in that: The base plate (111) is further provided with a curling head (114); Along the thickness direction of the carrying device (11), the thickness of the film (3) to be installed is H4, and the height H3 of the hot iron head (114) satisfies H2≤H3<H2+H4.

7. The carrying device according to claim 6, characterized in that: A plurality of the hot stamping heads are arranged on the substrate; at least some of the hot stamping heads (114) are arranged at the end of the first area (111a).

8. The carrying device according to claim 7, characterized in that: The ironing head (114) is arranged between adjacent clamping assemblies (112).

9. The carrying device according to any one of claims 1 to 5, characterized in that: The carrying device is further provided with a plurality of adsorption holes (115); the adsorption holes (115) are used to adsorb the coating (3) to be installed onto the carrying device (11).

10. A laminating mechanism, characterized in that: The laminating mechanism (1) comprises: Heating device (12); A carrying device (11), wherein the carrying device (11) is the carrying device (11) according to any one of claims 1 to 9; Wherein, along the thickness direction of the coating mechanism (1), the carrying device (11), the coating to be installed (3), the main grid-free battery cell (2) and the heating device are arranged in sequence; the heating device (12) is used to heat the carrying device (11), the coating to be installed (3) and the main grid-free battery cell (2).

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