Backboard film laminating equipment

Abstract

The utility model provides backboard film laminating equipment which comprises a bearing mechanism, a heating mechanism, a first laying mechanism, a second laying mechanism and a transferring mechanism, and the heating mechanism is arranged below the bearing mechanism. The first laying mechanism is used for laying n first film strips on the bearing mechanism. The second laying mechanism is used for laying m second film strips perpendicular to the first film on the bearing mechanism. The transfer mechanism transfers the back plate to the bearing mechanism, so that the first film strip is attached to the lower surface of the back plate, and the second film strip is attached to the lower surface of the back plate. The heating mechanism heats the first film strip so that the first film strip can be attached to the lower surface of the back plate, and heats the second film strip so that the second film strip can be attached to the lower surface of the back plate. And the transfer mechanism is also used for moving the back plate coated with the film strip away from the bearing mechanism. According to the backboard film covering equipment, the n first film strips and the m second film strips can be automatically attached to the backboard in a criss-cross mode, and therefore the film covering efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic module production, and more specifically to a backplane film laminating device. Background Art

[0002] Photovoltaic modules are generally formed by laminating a bottom plate, a battery string group, and a backplane. Before lamination, the battery string group is first laid on the bottom plate, and then the backplane is stacked on the battery string group. In order to prevent the battery string group from shifting during lamination, it is necessary to pre-bond and fix the battery string group on the bottom plate through an adhesive material. Since the backplane is made of transparent glass material, in order to improve the aesthetics of the photovoltaic module, cross-shaped film strips can be laid on the lower surface of the backplane to cover the adhesive material.

[0003] Currently, generally, the film strips are manually pre-applied on the backplane first, and then the backplane is stacked on the battery string group. The manual film laminating method has low efficiency and affects the production efficiency of photovoltaic modules. Summary of the Utility Model

[0004] In view of the above technical problems, the present application provides a backplane film laminating device for photovoltaic modules, and its detailed technical solution is as follows:

[0005] A backplane film laminating device includes a carrying mechanism, a heating mechanism, a first laying mechanism, a second laying mechanism, and a transfer mechanism, where:

[0006] The heating mechanism is arranged below the carrying mechanism;

[0007] The first laying mechanism is configured to lay n first film strips extending along a first horizontal direction and having a first spacing in a second horizontal direction on the carrying mechanism;

[0008] The second laying mechanism is configured to lay m second film strips extending along a second horizontal direction and having a second spacing in the first horizontal direction on the carrying mechanism, and the second horizontal direction is perpendicular to the first horizontal direction;

[0009] The transfer mechanism is configured to transfer the backplane to the carrying mechanism, so that the n first film strips located on the carrying mechanism are in contact with the lower surface of the backplane, and the m second film strips located on the carrying mechanism are in contact with the lower surface of the backplane. The length direction of the backplane is parallel to the first horizontal direction, and the width direction of the backplane is parallel to the second horizontal direction;

[0010] The heating mechanism is configured to heat the n first film strips in contact with the lower surface of the backplane, so that the n first film strips are laminated on the lower surface of the backplane, and is configured to heat the m second film strips in contact with the lower surface of the backplane, so that the m second film strips are laminated on the lower surface of the backplane;

[0011] The transfer mechanism is also configured to move the backplane with the film strip attached away from the loading mechanism;

[0012] Wherein, both m and n are integers greater than 1.

[0013] Through the cooperation of the loading mechanism, the heating mechanism, the first laying mechanism, the second laying mechanism and the transfer mechanism, the backplane film laminating device of the present application can automatically laminate n first film strips and m second film strips on the backplane in a crisscross manner, thereby improving the film laminating efficiency.

[0014] In some embodiments, the first laying mechanism includes a first feeding mechanism and a first spacing mechanism, wherein: the first feeding mechanism is configured to supply n first film strips extending along the first horizontal direction to the side of the loading mechanism; the first spacing mechanism is configured to obtain n first film strips from the first feeding mechanism, and space the n first film strips along the second direction to adjust the spacing between the n first film strips to a first spacing, and the first spacing mechanism is further configured to place the n first film strips with the spacing completed on the loading mechanism; the second laying mechanism includes a second feeding mechanism and a second spacing mechanism, wherein: the second feeding mechanism is configured to supply m second film strips extending along the second horizontal direction to the side of the loading mechanism; the second spacing mechanism is configured to obtain m second film strips from the second feeding mechanism, and space the m second film strips along the first direction to adjust the spacing between the m second film strips to a second spacing, and the second spacing mechanism is further configured to place the m second film strips with the spacing completed on the loading mechanism.

[0015] The first feeding mechanism realizes the automatic feeding of n first film strips, and the first spacing mechanism realizes the automatic spacing of n first film strips and automatically places the n first film strips with the spacing completed on the loading mechanism. Similarly, the second feeding mechanism realizes the automatic feeding of m second film strips, and the second spacing mechanism realizes the automatic spacing of m second film strips and automatically places the m second film strips with the spacing completed on the loading mechanism.

[0016] In some embodiments, the backplane film laminating device further includes a backplane conveyor line and a battery component conveyor line, wherein: the backplane conveyor line is arranged along the first horizontal direction and is configured to convey the backplane along the first horizontal direction, and a loading station close to the loading mechanism is provided on the conveying path of the backplane conveyor line, and the transfer mechanism is configured to pick up the backplane from the loading station and transfer the picked-up backplane to the loading mechanism; the battery component conveyor line is arranged along the second horizontal direction and passes under the loading mechanism, and the battery component conveyor line is configured to convey the battery components along the second horizontal direction, and a discharging station close to the loading mechanism is provided on the conveying path of the battery component conveyor line, and the transfer mechanism is configured to stack the backplane with the film strip attached removed from the loading mechanism on the battery components located at the discharging station.

[0017] By setting up the backplane conveyor line, the automatic conveyance of the backplane to the loading station near the loading mechanism is realized, so that the transfer mechanism can obtain the backplane nearby and transfer the backplane to the loading mechanism, thus ensuring the working rhythm and improving the film laminating efficiency. By setting up the battery module conveyor line, the automatic conveyance of the battery module to be stacked with the backplane to the unloading station near the loading mechanism is realized, so that the transfer mechanism can stack the backplane with the film strip attached thereon onto the battery module nearby, so that the stacking of the backplane can be completed during the conveyance of the battery module.

[0018] In some embodiments, the loading mechanism includes a first loading platform and a second loading platform arranged side by side along the second horizontal direction, wherein: a plurality of first adsorption holes and a plurality of first avoidance holes are arranged on the first loading platform, and a plurality of second adsorption holes and a plurality of second avoidance holes are arranged on the second loading platform; the first feeding mechanism is arranged along the first horizontal direction on the side of the first loading platform, and the first distance separating mechanism is arranged at the opposite first end and second end of the first loading platform; the second feeding mechanism is arranged along the second horizontal direction on the side of the second loading platform, and the second distance separating mechanism is arranged at the opposite third end and fourth end of the second loading platform; the first distance separating mechanism is configured to place n first film strips after distance separation onto the first loading platform, the first loading platform adsorbs the n first film strips through the first adsorption holes, the transfer mechanism is configured to transfer the backplane picked up from the loading station to the first loading platform so that the n first film strips are attached to the lower surface of the backplane; the heating mechanism is configured to heat the n first film strips through the first avoidance holes so that the n first film strips are laminated on the lower surface of the backplane; the second distance separating mechanism is configured to place m second film strips after distance separation onto the second loading platform, the second loading platform adsorbs the m second film strips through the second adsorption holes, the transfer mechanism is further configured to transfer the backplane with the first film strip laminated thereon located on the first loading platform to the second loading platform so that the m second film strips are attached to the lower surface of the backplane; the heating mechanism is configured to heat the m second film strips through the second avoidance holes so that the m second film strips are laminated on the lower surface of the backplane; the transfer mechanism is configured to pick up the backplane with the film strip laminated thereon from the second loading platform and stack the backplane with the film strip laminated thereon onto the battery string group located at the unloading station.

[0019] It can be seen that by setting the loading mechanism to include the first loading platform and the second loading platform, the lamination of the first film strip and the lamination of the second film strip are sequentially completed on the first loading platform and the second loading platform. After the first film strip is laminated, the lamination of the second film strip is carried out, which can ensure the lamination effect of the first film strip and the second film strip. In addition, the film strip lamination operations of the first loading platform and the second loading platform are independent of each other, and it can be realized that while the first film strip on the first loading platform is laminated on the lower surface of one backplane, the second film strip on the second loading platform can be laminated on the lower surface of the previous backplane, thus improving the film laminating efficiency.

[0020] In some embodiments, the heating mechanism is provided in two groups. One group of the heating mechanism is disposed below the first carrier table and is configured to heat n first film strips through the first avoidance holes; the other group of the heating mechanism is disposed below the second carrier table and is configured to heat m second film strips through the second avoidance holes.

[0021] By providing the heating mechanism in two groups, the two groups of heating mechanisms can synchronously attach the first film strips on the first carrier table and the second film strips on the second carrier table to the corresponding backplates, thereby improving the film laminating efficiency.

[0022] In some embodiments, the transfer mechanism includes a first transfer part and a second transfer part, wherein: the first transfer part is configured to pick up a backplate from the loading station and transfer the picked-up backplate to the first carrier table; the second transfer part is configured to transfer the backplate with the first film strip attached thereon located on the first carrier table to the second carrier table, and is configured to pick up the backplate with the film strips attached thereon from the second carrier table and stack the backplate with the film strips attached thereon on the battery string group located at the unloading station.

[0023] By providing the transfer mechanism to include a first transfer part and a second transfer part, when the second transfer part transfers the backplate with the first film strip attached thereon located on the first carrier table to the second carrier table, the first transfer part can simultaneously pick up a backplate to be film laminated from the loading station and transfer the backplate to the first carrier table. In this way, the working rhythm can be further accelerated and the film laminating efficiency can be improved.

[0024] In some embodiments, the second transfer part includes a first handling component and a second handling component, wherein: the first handling component is configured to pick up the backplate with the first film strip attached thereon from the first carrier table and transfer the picked-up backplate with the first film strip attached thereon to the second carrier table; the second handling component is configured to pick up the backplate with the film strips attached thereon from the second carrier table and stack the backplate with the film strips attached thereon on the battery string group located at the unloading station.

[0025] By providing the second transfer part to include a first handling component and a second handling component, while the second handling component stacks the backplate with the film strips attached thereon located on the second carrier table on the battery string group located at the unloading station, the first handling component transfers the backplate with the first film strip attached thereon located on the first carrier table to the second carrier table. In this way, the working rhythm can be further accelerated and the film laminating efficiency can be improved.

[0026] In some embodiments, the second transfer unit includes a transfer conveyor line and a third handling component, where: The transfer conveyor line is located below the first carrier and the second carrier, and is configured to convey the backplane with the first film strip attached thereon located on the first carrier to the second carrier; The third handling component is configured to pick up the backplane with the film strip attached thereon from the second carrier, and stack the backplane with the film strip attached thereon onto the battery string group located at the blanking station.

[0027] By setting the second transfer unit to include a transfer conveyor line and a third handling component, while the third handling component stacks the backplane with the film strip attached thereon on the second carrier onto the battery string group located at the blanking station, the transfer conveyor line conveys the backplane with the first film strip attached thereon on the first carrier to the second carrier. In this way, the working rhythm can be further accelerated and the film covering efficiency can be improved.

[0028] In some embodiments, the carrying mechanism includes a third carrier, where: A number of third suction holes and a number of third avoidance holes are provided on the third carrier; The first feeding mechanism is arranged along the first horizontal direction on the first side of the third carrier, and the first spacing mechanism is arranged at the opposite first end and second end of the third carrier; The second feeding mechanism is arranged along the second horizontal direction on the second side of the third carrier adjacent to the first side, and the second spacing mechanism is arranged at the opposite third end and fourth end of the third carrier; The first spacing mechanism is configured to place n first film strips after spacing onto the third carrier, and the second spacing mechanism is configured to place m second film strips after spacing onto the third carrier, such that the m second film strips are vertically stacked on the n first film strips; The third carrier is configured to adsorb the n first film strips and the m second film strips through the third suction holes; The transfer mechanism is configured to transfer the backplane picked up from the loading station to the third carrier, so that the n first film strips and the m second film strips are attached to the lower surface of the backplane; The heating mechanism is configured to heat the n first film strips and the m second film strips through the third avoidance holes, so that the n first film strips and the m second film strips are attached to the lower surface of the backplane; The transfer mechanism is configured to pick up the backplane with the film strip attached thereon from the third carrier, and stack the backplane with the film strip attached thereon onto the battery string group located at the blanking station.

[0029] The attachment operations of the first film strip and the second film strip are both completed on the third carrier, thereby reducing the equipment size and equipment cost. In addition, the n first film strips and the m second film strips are attached to the back surface of the backplane at one time, thereby improving the film covering efficiency.

[0030] In some embodiments, the transfer mechanism includes a third transfer unit and a fourth transfer unit, where: the third transfer unit is configured to pick up the backplane from the loading station and transfer the picked-up backplane to the third carrier table; the fourth transfer unit is configured to pick up the backplane with the film strip attached thereon from the third carrier table and stack the backplane with the film strip attached thereon onto the battery string group located at the unloading station.

[0031] By setting the transfer mechanism to include a third transfer unit and a fourth transfer unit, when the fourth transfer unit stacks the backplane with the film strip attached thereon from the third carrier table onto the battery string group located at the unloading station, the third transfer unit transfers the next backplane to be covered with film at the loading station to the third carrier table. In this way, the working rhythm can be further accelerated and the film covering efficiency can be improved.

[0032] In some embodiments, the heating mechanism includes a lifting drive unit, a heating plate and a plurality of heating heads, where: the heating plate is horizontally connected to the lifting end of the lifting drive unit, and the plurality of heating heads are arranged on the heating plate. When the lifting drive unit drives the heating plate to rise, each heating head passes upward through the first avoidance hole, the second avoidance hole or the third avoidance hole to perform contact heating on the first film strip or the second film strip.

[0033] By setting the heating mechanism, the heating mechanism can pass upward through the first avoidance hole, the second avoidance hole or the third avoidance hole to attach the first film strip or the second film strip to be attached to the lower surface of the backplane in a contact heating manner, ensuring the film covering effect. In addition, by setting the number of heating heads, it is also possible to uniformly attach all the first film strips or the second film strips to be attached to the lower surface of the backplane in a contact heating manner at one time, thereby further improving the film covering efficiency.

[0034] In some embodiments, the structure of the second feeding mechanism is the same as that of the first feeding mechanism. The first feeding mechanism includes a material feeding component, a slitting component, a cutting component, and a pulling component, where: The material feeding component is configured to fix the film tape reel and drive the film tape reel to rotate to send out the film tape; The pulling component is arranged on the side of the carrying mechanism, and the cutting component is arranged between the material feeding component and the pulling component. The pulling component is configured to clamp the end of the film tape released by the material feeding component from the cutting component and pull the film tape, so that the film tape of a predetermined length passes through the cutting component and reaches the side of the carrying mechanism along the first horizontal direction; When the film tape of a predetermined length passes through the cutting component, the cutting component presses the film tape and cuts the film tape, and the pulling component is further configured to clamp both ends of the cut film tape; The slitting component is located between the material feeding component and the cutting component. The film tape released by the material feeding component passes through the slitting component and the cutting component in sequence under the pulling of the pulling component. The slitting component is configured to slit the film tape along the length direction of the film tape, so that the film tape pulled to the side of the carrying mechanism is slit into n film strips extending along the first horizontal direction; Or; The slitting component is located on the pulling path of the pulling component. After the cutting component cuts the film tape, the slitting component moves from one end of the cut film tape to the other end along the first horizontal direction to slit the film tape into n film strips extending along the first horizontal direction.

[0035] Through the cooperation of the material feeding component, the slitting component, the cutting component, and the pulling component, the first feeding mechanism can automatically slit the film tape released from the film tape reel into n first film strips extending along the first horizontal direction, and pull and hold the n first film strips on the side of the carrying mechanism, so that the first spacing mechanism can conveniently pick up the n first film strips from the first feeding mechanism.

[0036] In some embodiments, the slitting component is located between the material feeding component and the cutting component; The slitting component includes a pair of first rotary cutters and second rotary cutters arranged in pairs. The film tape passes through the twisted joint of the first rotary cutter and the second rotary cutter; The first rotary cutter includes a first rotating shaft and n - 1 first blades arranged side by side along the length direction of the first rotating shaft on the first rotating shaft; The second rotary cutter includes a second rotating shaft and n - 1 second blades arranged side by side along the length direction of the second rotating shaft on the second rotating shaft and matching with the first blades one by one; When the film tape passes through the twisted joint of the first rotary cutter and the second rotary cutter, the n - 1 first blades and the n - 1 second blades cooperate to slit the film tape.

[0037] When the film tape passes through the twisted joint of the first rotary cutter and the second rotary cutter under the pulling of the pulling mechanism, it is slit into n first film strips by the first rotary cutter and the second rotary cutter. The slitting component does not need to be additionally provided with a slitting driving part, which reduces the equipment cost while ensuring the slitting effect.

[0038] In some embodiments, the slitting assembly is located on the pulling path of the pulling assembly, and the slitting assembly includes a translation drive unit, a lifting drive unit and a cutter, wherein: the lifting drive unit is connected to the driving end of the translation drive unit, and the cutter is connected to the driving end of the lifting drive unit, and the cutter includes n-1 third blades arranged side by side along the second horizontal direction; when the pulling assembly pulls the film tape, the lifting drive unit drives the cutter to rise to an avoidance high position; after the cutting assembly cuts the film tape, the lifting drive unit drives the cutter to descend to a cutting low position, so that the n-1 third blades abut against the cut film tape, and the translation drive unit drives the cutter to move along the first horizontal direction from one end of the cut film tape to the other end of the cut film tape, so as to cut the film tape into n film strips extending along the first horizontal direction.

[0039] The film strip of a predetermined length is cut only after being pulled to the side of the supporting mechanism, thereby ensuring the uniformity of the n first film strips obtained by cutting.

[0040] In some embodiments, the pulling assembly includes a first pulling unit and a second pulling unit arranged side by side along a first horizontal direction, wherein: the first pulling unit is close to the cutting assembly, the first pulling unit has a first pulling jaw, and the first pulling jaw can translate along the first horizontal direction; the second pulling unit is away from the cutting assembly, the second pulling unit has a second pulling jaw, wherein the second pulling jaw can translate along the first horizontal direction; the first pulling jaw is configured to clamp the film tape from the cutting assembly and feed the clamped film tape toward the second pulling jaw, and the second pulling jaw is configured to pull the film tape away from the first pulling jaw; after the cutting assembly cuts off the film tape, the first pulling jaw and the second pulling jaw respectively clamp one end of the cut film tape.

[0041] The first pulling unit and the second pulling unit cooperate with each other to pull the film strip of a predetermined length to the side of the supporting mechanism, and after the cutting assembly cuts the film strip, clamp the two ends of the cut film strip from both ends, thereby finally supplying and maintaining n first film strips on the side of the supporting mechanism.

[0042] In some embodiments, the second spacing mechanism has the same structure as the first spacing mechanism, and the first spacing mechanism includes two groups of spacing components arranged at intervals, and the two groups of spacing components are configured to respectively clamp the two ends of n first film strips from the pulling component and distance the n first film strips, and the two groups of spacing components are also configured to place the n first film strips after spacing onto the supporting mechanism.

[0043] The two groups of spacing components clamp the two ends of the n first membrane strips and complete the spacing and placement of the n first membrane strips, thereby avoiding the bearing mechanism and avoiding contact with the bearing mechanism.

[0044] In some embodiments, the two-component spacing assembly includes a spacing belt disposed along the second horizontal direction. N first spacing jaws corresponding one-to-one with the first film strips are equidistantly mounted on the spacing belt. The spacing between the first spacing jaws is equal to the first spacing. The spacing belt is configured to drive the n first spacing jaws to sequentially pass through one side of the pulling assembly, so that each first spacing jaw respectively grabs one end of the corresponding first film strip located on the pulling assembly. When the first film strip moves to the target position under the drive of the first spacing jaw, the first spacing jaw releases the first film strip, causing the first film strip to fall onto the bearing mechanism.

[0045] By driving the n first spacing jaws to sequentially grab one first film strip from the pulling assembly through the spacing belt, the automatic spacing of the n first film strips can be implemented. The overall structure is simple, and the smoothness of the film strip spacing action is good.

[0046] In some embodiments, the spacing belt is a spacing chain driven by a sprocket or a timing belt driven by a timing pulley.

[0047] Two spacing belts with simple structures and smooth spacing actions are provided, both of which can ensure the automatic spacing effect of the n first film strips.

[0048] In some embodiments, each of the two-component spacing assemblies includes a moving unit, a mounting seat, a guide rail, a spacing driving unit, and n second spacing jaws corresponding one-to-one with the first film strips, wherein: the mounting seat is disposed on the moving unit, the guide rail is mounted on the mounting seat along the second horizontal direction, and the n second spacing jaws are mounted on the guide rail; the moving unit is configured to drive the mounting seat to move towards the pulling assembly, so that the n second spacing jaws respectively grab one end of the corresponding first film strip located on the pulling assembly; the spacing driving unit is disposed on the mounting seat, and the spacing driving unit is configured to drive the n second spacing jaws to slide and separate along the guide rail to complete the spacing of the n first film strips.

[0049] By driving the n second spacing jaws to move along the guide rail through the spacing driving unit, the n first film strips clamped by the n second spacing jaws are automatically spaced. The overall structure is simple, and the smoothness of the film strip spacing action is good.

[0050] In some embodiments, among the n second spacing jaws, the first second spacing jaw is fixedly mounted on the guide rail, the second to the nth second spacing jaws are all slidably mounted on the guide rail, and the second spacing jaws are all connected by a flexible member. The nth second spacing jaw is in transmission connection with the spacing driving unit. When the spacing driving unit drives the nth second spacing jaw to slide along the guide rail, the second to the (n - 1)th second spacing jaws are driven to slide along the guide rail through the flexible member to complete the spacing of the n first film strips.

[0051] The nth second distance-clamping jaw is driven to move along the guide rail by a driving mechanism. Since the second distance-clamping jaws are connected to each other through a flexible member, the flexible member can drive the other groups of second distance-clamping jaws to move a certain distance in sequence, thereby realizing the distance separation of the n first film strips clamped by the n second distance-clamping jaws.

[0052] In some embodiments, the distance separation driving unit includes a synchronous belt disposed on the mounting base along the second horizontal direction. The nth second distance-clamping jaw is fixedly connected to one side belt body of the synchronous belt. When the synchronous belt rotates, it drives the nth second distance-clamping jaw to slide along the guide rail.

[0053] The synchronous belt drives the nth second distance-clamping jaw to slide along the guide rail, realizing the distance separation of the n first film strips clamped by the n second distance-clamping jaws.

[0054] In some embodiments, the fourth transfer unit is further configured to punch holes in the film strip at a predetermined position on the backplane when picking up the backplane with the film strip attached thereon from the third carrier platform.

[0055] For the photovoltaic module after lamination, wiring needs to be carried out through the prefabricated through holes on the backplane. The film strip attached to the backplane easily blocks the through holes on the backplane. By punching holes in the film strip through the through holes on the backplane, the film strip blocking the through holes on the backplane can be removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 is a schematic structural diagram of the backplane film laminating device in the first embodiment of the present application;

[0057] Figure 2 is a schematic structural diagram of the first carrier platform and the first laying mechanism in the first embodiment of the present application from one perspective;

[0058] Figure 3 is a schematic structural diagram of the first carrier platform and the first laying mechanism in the first embodiment of the present application from another perspective;

[0059] Figure 4 is a schematic structural diagram of one implementation manner of the slitting assembly in the first embodiment of the present application;

[0060] Figure 5 is a schematic structural diagram of the second pulling unit in the first embodiment of the present application;

[0061] Figure 6 is Figure 2 a partial enlarged view of area A in

[0062] Figure 7 is a schematic structural diagram of one implementation manner of the first distance separation mechanism in the first embodiment of the present application;

[0063] Figure 8 For Figure 7 Partial enlarged view of area B in

[0064] Figure 9 Schematic structural diagram of the backplane film laminating device in the first embodiment of the present application in another implementation manner;

[0065] Figure 10 Schematic structural diagram of the backplane film laminating device in the second embodiment of the present application;

[0066] Figure 11 Schematic structural diagram of the backplane film laminating device in the third embodiment of the present application;

[0067] Figures 1 to 11 It includes:

[0068] Carrying mechanism 1:

[0069] First carrying platform 11, second carrying platform 12, first avoidance hole 111, second avoidance hole 121;

[0070] Third carrying platform 13, third avoidance hole 131;

[0071] Heating mechanism 2;

[0072] First laying mechanism 3:

[0073] First feeding mechanism 31: unwinding component 311, slitting component 312, cutting component 313, pulling component 314;

[0074] First rotary cutter 315, second rotary cutter 316, first rotating shaft 3151, first blade 3152, second rotating shaft 3161, second blade 3162;

[0075] First pulling unit 317, second pulling unit 318, first pulling jaw 3171, second pulling jaw 3181;

[0076] First spacing mechanism 32:

[0077] Spacing belt 321, first spacing jaw 322;

[0078] Mounting seat 323, guide rail 324, spacing driving unit 325, second spacing jaw 326;

[0079] Second laying mechanism 4:

[0080] Second feeding mechanism 41;

[0081] Second spacing mechanism 42;

[0082] Transfer mechanism 5:

[0083] The second transfer unit 51, the first handling component 511, the second handling component 512, and the third handling component 513;

[0084] The fourth transfer unit 52;

[0085] The backplane conveyor line 6;

[0086] The battery component conveyor line 7;

[0087] The backplane 100 and the film strip 200;

[0088] The loading station A and the unloading station B. Specific embodiments

[0089] To make the above objects, features, and advantages of the present application more apparent and understandable, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0090] To solve the problem of low efficiency in the manual film laminating method, the present application provides a backplane film laminating device for photovoltaic modules, which can implement automatic film lamination of the backplane, thereby improving the film lamination efficiency.

[0091] The following will exemplarily describe the structure and film lamination process of the backplane film laminating device of the present application through several embodiments.

[0092] The first embodiment

[0093] As Figures 1 to 3 shown, the backplane film laminating device in this embodiment includes a loading mechanism 1, a heating mechanism 2, a first laying mechanism 3, a second laying mechanism 4, and a transfer mechanism 5, wherein:

[0094] The heating mechanism 2 is arranged below the loading mechanism 1.

[0095] The first laying mechanism 3 is configured to lay n first film strips extending along the first horizontal direction (such as the X-axis direction in the figure) and having a first spacing in the second horizontal direction (such as the Y-axis direction in the figure) onto the loading mechanism 1. The second laying mechanism 4 is configured to lay m second film strips extending along the second horizontal direction and having a second spacing in the first horizontal direction onto the loading mechanism 1, and the second horizontal direction is perpendicular to the first horizontal direction. Among them, both m and n are integers greater than 1.

[0096] The transfer mechanism 5 is configured to transfer the backplane 100 onto the loading mechanism 1, so that the n first film strips located on the loading mechanism 1 are attached to the lower surface of the backplane 100, and the m second film strips located on the loading mechanism 1 are attached to the lower surface of the backplane 100. Among them, the length direction of the backplane is parallel to the first horizontal direction, and the width direction of the backplane is parallel to the second horizontal direction.

[0097] The heating mechanism 2 is configured to heat n first film strips that are in contact with the lower surface of the back plate 100, so that the n first film strips are attached to the lower surface of the back plate 100, and is configured to heat m second film strips that are in contact with the lower surface of the back plate 100, so that the m second film strips are attached to the lower surface of the back plate 100.

[0098] The transfer mechanism 5 is further configured to move the back plate with the film strips attached away from the loading mechanism 1.

[0099] It can be seen that through the cooperation of the loading mechanism 1, the heating mechanism 2, the first laying mechanism 3, the second laying mechanism 4 and the transfer mechanism 5, the back plate film laminating device in this embodiment can automatically attach n first film strips and m second film strips to the back of the back plate in a crisscross manner, thereby improving the film laminating efficiency.

[0100] As Figure 1 shown, optionally, the first laying mechanism 3 includes a first feeding mechanism 31 and a first spacing mechanism 32, where: the first feeding mechanism 31 is configured to supply n first film strips extending along the first horizontal direction to the side of the loading mechanism 1. The first spacing mechanism 32 is configured to obtain n first film strips from the first feeding mechanism 31, and space the n first film strips along the second direction to adjust the spacing between the n first film strips to a first spacing. The first spacing mechanism is further configured to place the n first film strips after spacing on the loading mechanism 1.

[0101] Similarly, the second laying mechanism 4 includes a second feeding mechanism 41 and a second spacing mechanism 42, where: the second feeding mechanism 41 is configured to supply m second film strips extending along the second horizontal direction to the side of the loading mechanism 1. The second spacing mechanism 42 is configured to obtain m second film strips from the second feeding mechanism 41, and space the m second film strips along the first direction to adjust the spacing between the m second film strips to a second spacing. The second spacing mechanism 42 is further configured to place the m second film strips after spacing on the loading mechanism 1.

[0102] Continue to refer to Figure 1As shown, optionally, the backplane film laminating device in the embodiments of the present application further includes a backplane conveying line 6 and a battery component conveying line 7, where: The backplane conveying line 6 is arranged along the first horizontal direction, and the backplane conveying line 6 is configured to convey the backplane 100 along the first horizontal direction. There is a loading station A near the loading mechanism 1 on the conveying path of the backplane conveying line 100. The transfer mechanism 5 is configured to pick up the backplane 100 from the loading station A and transfer the picked-up backplane 100 to the loading mechanism 1. The battery component conveying line 7 is arranged along the second horizontal direction and passes under the loading mechanism 1. The battery component conveying line 7 is configured to convey the battery components along the second horizontal direction. There is a unloading station B near the loading mechanism 1 on the conveying path of the battery component conveying line 7. The transfer mechanism 5 is configured to stack the backplane 100 with the film strip attached thereon removed from the loading mechanism 1 onto the battery components located at the unloading station B.

[0103] The battery components mentioned in the present application include a bottom plate and a battery string assembly bonded to the bottom plate. The battery string assembly is formed by arranging a plurality of battery strings according to a predetermined layout rule and connecting them in series through busbars.

[0104] By setting the backplane conveying line 6, the automatic conveying of the backplane 100 to the loading station A near the loading mechanism 1 is realized, so that the transfer mechanism 5 can obtain the backplane 100 nearby and transfer the backplane 100 to the loading mechanism 1, thereby ensuring the working rhythm and improving the film laminating efficiency.

[0105] By setting the battery component conveying line 7, the automatic conveying of the battery components to be stacked with the backplane 100 to the unloading station B near the loading mechanism 1 is realized, so that the transfer mechanism 5 can stack the backplane with the film strip attached thereon nearby onto the battery components, so that the stacking of the backplane can be completed during the conveying process of the battery components.

[0106] Continue to refer to Figure 1 As shown, in the backplane film laminating device in this embodiment, the loading mechanism 1 includes a first loading platform 11 and a second loading platform 12 arranged side by side along the second horizontal direction, where:

[0107] A number of first adsorption holes (not shown) and a number of first avoidance holes 111 are provided on the first loading platform 11, and a number of second adsorption holes (not shown) and a number of second avoidance holes 121 are provided on the second loading platform 12.

[0108] The first feeding mechanism 31 is arranged along the first horizontal direction on the side of the first loading platform 11, and the first spacing mechanism 32 is arranged at the opposite first end and second end of the first loading platform 11.

[0109] The second feeding mechanism 41 is arranged along the second horizontal direction on the side of the second loading platform 12, and the second spacing mechanism 42 is arranged at the opposite third end and fourth end of the second loading platform 12.

[0110] The first spacing mechanism 32 is configured to place n first film strips that have completed spacing onto the first carrier table 11. The first carrier table 11 adsorbs the n first film strips through the first adsorption holes. The transfer mechanism 5 is configured to transfer the backplane 100 picked up from the loading station A onto the first carrier table 11, so that the n first film strips are abutted against the lower surface of the backplane 100. The heating mechanism 2 is configured to heat the n first film strips through the first avoidance hole 111, so that the n first film strips are adhered to the lower surface of the backplane 100.

[0111] The second spacing mechanism 42 is configured to place m second film strips that have completed spacing onto the second carrier table 12. The second carrier table 12 adsorbs the m second film strips through the second adsorption holes. The transfer mechanism 5 is further configured to transfer the backplane on which the first film strips have been adhered on the first carrier table 11 onto the second carrier table 12, so that the m second film strips are abutted against the lower surface of the backplane 10. The heating mechanism 2 is configured to heat the m second film strips through the second avoidance hole 121, so that the m second film strips are adhered to the lower surface of the backplane 100. The transfer mechanism 5 is configured to pick up the backplane 100 with the film strips adhered thereon from the second carrier table 12 and stack the backplane 100 with the film strips adhered thereon onto the battery string group located at the unloading station B.

[0112] For the backplane film laminating device in this embodiment, the optional film laminating process is as follows:

[0113] After the first spacing mechanism 32 obtains n first film strips from the first feeding mechanism 31 and completes the spacing of the n first film strips, it places the n first film strips that have completed spacing onto the first carrier table 11. The first carrier table 11 adsorbs the n first film strips through the first adsorption holes.

[0114] Next, the transfer mechanism transfers the backplane 100 to be film laminated picked up from the loading station A onto the first carrier table 11, so that the n first film strips are abutted against the lower surface of the backplane 100. Subsequently, the heating mechanism 2 heats the n first film strips through the first avoidance hole 111, so that the n first film strips are adhered to the lower surface of the backplane.

[0115] Next, the transfer mechanism 5 transfers the backplane 100 with the first film strips adhered thereon on the first carrier table 11 onto the second carrier table 12, so that the m second film strips are abutted against the lower surface of the backplane 100. Of course, the m second film strips and the n first film strips are crisscrossed. Subsequently, the heating mechanism 2 heats the m second film strips through the second avoidance hole 121, so that the m second film strips are adhered to the lower surface of the backplane 100.

[0116] Finally, the transfer mechanism 5 picks up the backplane 100 with the film strip pasted on the second carrier table 12, and stacks the backplane 100 with the film strip pasted on the battery string group located at the blanking station B.

[0117] It can be seen that by setting the carrying mechanism 1 to include the first carrier table 11 and the second carrier table 12, the first film strip pasting and the second film strip pasting are sequentially completed on the first carrier table 11 and the second carrier table 12. After the first film strip is pasted well, the pasting of the second film strip is carried out, which can ensure the pasting effect of the first film strip and the second film strip. In addition, the film strip pasting operations of the first carrier table 11 and the second carrier table 12 are independent of each other, and it can be realized that while pasting the first film strip on the lower surface of a backplane 100 on the first carrier table 11, the second film strip on the second carrier table 12 can be pasted on the lower surface of the previous backplane, thereby improving the film covering efficiency.

[0118] Optionally, two sets of heating mechanisms 2 are provided. One set of heating mechanisms 2 is arranged below the first carrier table 11, and is configured to heat n first film strips through the first avoidance holes 111. The other set of heating mechanisms 2 is arranged below the second carrier table 12, and is configured to heat m second film strips through the second avoidance holes 121.

[0119] By setting the heating mechanism 2 to two sets, the two sets of heating mechanisms 2 can synchronously and without interference paste the first film strip on the first carrier 11 and the second film strip on the second carrier table 12 onto the corresponding backplane 100, improving the film covering efficiency.

[0120] As Figure 1 shown, optionally, the transfer mechanism 5 in this embodiment includes a first transfer part (not shown in the figure) and a second transfer part 51, where: the first transfer part is configured to pick up the backplane 100 from the loading station A, and transfer the picked-up backplane 100 to the first carrier table 11.

[0121] The second transfer part 51 is configured to transfer the backplane 100 with the first film strip pasted on the first carrier table 11 to the second carrier table 12, and is configured to pick up the backplane 100 with the film strip pasted from the second carrier table 12, and stack the backplane 100 with the film strip pasted on the battery string group located at the blanking station B.

[0122] By setting the transfer mechanism 5 to include the first transfer part and the second transfer part 51, while the second transfer part 51 transfers the backplane 100 with the first film strip pasted on the first carrier table 11 to the second carrier table 12, the first transfer part can simultaneously pick up a backplane 100 to be film-covered from the loading station A and transfer the backplane 100 to the first carrier table 11. In this way, the working rhythm can be further accelerated and the film covering efficiency can be improved.

[0123] Continue to refer to Figure 1 As shown, in an alternative embodiment, the second transfer unit 51 includes a first handling component 511 and a second handling component 512, where: The first handling component 511 is configured to pick up the backplane 100 with the first film strip attached from the first carrier 11, and transport the picked-up backplane with the first film strip attached to the second carrier 12. The second handling component 512 is configured to pick up the backplane 100 with the film strip attached from the second carrier 12, and stack the backplane 100 with the film strip attached on the battery string group located at the blanking station B.

[0124] By setting the second transfer unit 51 to include the first handling component 511 and the second handling component 512, while the second handling component 512 stacks the backplane 100 with the film strip attached on the second carrier 12 on the battery string group located at the blanking station B, the first handling component 511 transports the backplane 100 with the first film strip attached on the first carrier 11 to the second carrier 12. In this way, the working rhythm can be further accelerated and the film covering efficiency can be improved.

[0125] As Figure 1 shown, the first handling component 511 and the second handling component 512 can be integrated on the same translation drive module, and this translation drive module drives the first handling component 511 and the second handling component 512 to translate synchronously along the second horizontal direction, so as to achieve that while the second handling component 512 stacks the backplane 100 with the film strip attached on the second carrier 12 on the battery string group located at the blanking station B, the first handling component 511 transports the backplane 100 with the first film strip attached on the first carrier 11 to the second carrier 12.

[0126] Of course, as Figure 9 shown, the first handling component 511 and the second handling component 512 can also be two completely independent handling components. Among them, the first handling component 511 includes a rotation drive module and a picking part, and the rotation drive module drives the picking part to rotate and switch between the first carrier 11 and the second carrier 12, so that the picking part transports the backplane 100 with the first film strip attached on the first carrier 11 to the second carrier 12. And the second handling component 512 includes a translation drive module and a picking part, and the translation drive module drives the picking part to translate and switch between the second carrier 12 and the blanking station B, so that the picking part stacks the backplane 100 with the film strip attached on the second carrier 12 on the battery component at the blanking station B.

[0127] Continue to refer to Figure 9As shown, optionally, the backplane film laminating device in this embodiment further includes a blanking conveyor line 8 arranged along the first horizontal direction. The battery components with the backplane installed at the blanking station B are transferred onto the blanking conveyor line 8, and the blanking conveyor line 8 transports them to the subsequent processing station, such as the lamination station.

[0128] As is known to those skilled in the art, for the photovoltaic modules that have completed lamination, wiring needs to be carried out through the through holes prefabricated on the backplane. However, the film strips pasted on the backplane 100 are very likely to block the through holes on the backplane 100, thus affecting the subsequent wiring. To solve this problem, optionally, a punching member is further provided on the second handling component 512. When the second handling component 512 stacks the backplane 100 with the film strip pasted onto the battery string group located at the blanking station B, the punching member punches the film strip through the through hole on the backplane, so as to remove the first film strip or the second film strip that blocks the through hole.

[0129] Optionally, the heating mechanism 2 includes a lifting drive part, a heating plate and a plurality of heating heads, wherein: the heating plate is horizontally connected to the lifting end of the lifting drive part, and a plurality of heating heads are arranged on the heating plate. When the lifting drive part drives the heating plate to rise, each heating head passes upward through the first avoidance hole 111 or the second avoidance hole 121 to implement contact heating on the first film strip or the second film strip, so as to ensure that the first film strip and the second film strip are fully softened and then pasted onto the lower surface of the backplane, ensuring the film laminating effect.

[0130] In addition, by setting the number of heating heads, it is also possible to paste all the first film strips or second film strips to be pasted onto the lower surface of the backplane in a contact heating manner at one time, thereby further improving the film laminating efficiency.

[0131] In this embodiment, the structure of the second feeding mechanism 41 is the same as that of the first feeding mechanism 31. Therefore, hereinafter, the first feeding mechanism 31 will be taken as an example to illustrate the structure and working process of the first feeding mechanism 31 and the second feeding mechanism 41.

[0132] As Figures 2 to 3 shown, the first feeding mechanism 31 includes a feeding component 311, a slitting component 312, a cutting component 313 and a pulling component 314, wherein:

[0133] The feeding component 311 is configured to fix the film strip reel and drive the film strip reel to rotate to send out the film strip. The pulling component 34 is arranged on the side of the carrying mechanism 1, the cutting component 313 is arranged between the feeding component 311 and the pulling component 314, and the pulling component 314 is configured to clamp the end of the film strip released by the feeding component 311 from the cutting component 313 and pull the film strip, so that the film strip of a predetermined length passes through the cutting component 313 and reaches the side of the carrying mechanism 1 along the first horizontal direction. In this embodiment, the film strip of a predetermined length is pulled to the side of the first carrying platform 11.

[0134] When a film strip of a predetermined length passes through the cutting assembly 313, the cutting assembly 313 presses the film strip and cuts it off. The pulling assembly 314 is also configured to clamp both ends of the cut film strip, so that the cut film strip is held at the side of the carrying mechanism 1. Since the cutting assembly 313 presses the film strip when cutting it off, the new free end of the film strip is pressed and held on the cutting assembly 313, ensuring that the pulling assembly 314 can pick up the film strip released by the feeding component 311 from the cutting assembly 313 each time.

[0135] As an alternative implementation, as Figure 2 shown, the slitting assembly 312 is located between the feeding component 311 and the cutting assembly 313. The film strip released by the feeding component 311 passes through the slitting assembly 312 and the cutting assembly 313 in sequence under the pulling of the pulling assembly 314. During the pulling process of the film strip by the pulling assembly 314, the slitting assembly 312 is configured to slit the film strip along the length direction of the film strip, so that the film strip pulled to the side of the carrying mechanism 1 is slit into n film strips extending along the first horizontal direction.

[0136] As another alternative implementation, as Figure 3 shown, the slitting assembly 312 is located on the pulling path of the pulling assembly 314. After the cutting assembly 313 cuts off the film strip, the slitting assembly 312 moves from one end of the cut film strip 200 to the other end of the cut film strip 200 along the first horizontal direction, so as to slit the film strip 200 into n film strips extending along the first horizontal direction.

[0137] It can be seen that through the cooperation of the feeding component 311, the slitting assembly 312, the cutting assembly 313 and the pulling assembly 314, the first feeding mechanism 31 can automatically cut the film strip released from the film strip roll into n film strips extending along the first horizontal direction, and pull and hold the n first film strips at the side of the carrying mechanism 1, so that the first spacing mechanism 32 can conveniently pick up the n first film strips from the first feeding mechanism 31.

[0138] For the case where the slitting assembly 312 is located between the feeding component 311 and the cutting assembly 313, as Figure 4As shown, optionally, the slitting assembly 312 includes a first rotary cutter 315 and a second rotary cutter 316 arranged in pairs, and the film tape passes through the twisted portion of the first rotary cutter 315 and the second rotary cutter 316. The first rotary cutter 315 includes a first rotating shaft 3151 and n-1 first blades 3152 arranged side by side on the first rotating shaft 3151 along the length direction of the first rotating shaft 3151. The second rotary cutter 316 includes a second rotating shaft 3161 and n-1 second blades 3162 arranged side by side on the second rotating shaft 3161 along the length direction of the second rotating shaft 3161 and matching the first blades 3152 one by one. When the film tape passes through the twisted portion of the first rotary cutter 315 and the second rotary cutter 316 under the pulling of the pulling assembly 314, the n-1 first blades 3152 and the n-1 second blades 3162 cooperate to slit the film tape, thereby slitting the film tape into n first film strips.

[0139] That is, when the film tape passes through the twisted portion of the first rotary cutter 315 and the second rotary cutter 316 under the pulling of the pulling assembly 314, the first rotary cutter 315 and the second rotary cutter 316 can cut the film tape into n first film strips. The cutting assembly 312 can cut the film tape without the need for an additional cutting drive, thereby reducing the equipment cost.

[0140] In the case where the slitting assembly 312 is located in the pulling path of the pulling assembly, the slitting assembly 312 optionally includes a translation drive unit, a lifting drive unit and a cutter, wherein: the lifting drive unit is connected to the driving end of the translation drive unit, and the cutter is connected to the driving end of the lifting drive unit. The cutter includes n-1 third blades arranged side by side along the second horizontal direction. When the pulling assembly 314 pulls the film strip, the lifting drive unit drives the cutter to rise to the avoidance high position to avoid the pulling assembly 314 and the film strip. After the cutting assembly 313 cuts the film strip, the lifting drive unit drives the cutter to descend to the cutting low position, so that the n-1 third blades abut against the cut film strip 200, and the translation drive unit drives the cutter to move from one end of the cut film strip 200 to the other end of the cut film strip along the first horizontal direction to cut the film strip 200 into n film strips extending along the first horizontal direction.

[0141] By arranging the slitting assembly 312 on the pulling path of the pulling assembly, the slitting assembly 312 performs slitting only after the film strip 200 of a predetermined length is pulled to the side of the supporting mechanism 1, thereby ensuring the uniformity of the n first film strips obtained by slitting.

[0142] like Figure 2 , Figure 3 and Figure 5As shown, optionally, the pulling assembly 314 includes a first pulling unit 317 and a second pulling unit 318 arranged side by side in the first horizontal direction, where: the first pulling unit 317 is close to the cutting assembly 313, the first pulling unit 317 has a first pulling jaw 3171, and the first pulling jaw 3171 can translate in the first horizontal direction. The second pulling unit 318 is away from the cutting assembly 313, the second pulling unit 318 has a second pulling jaw 3181, and the second pulling jaw 3181 can translate in the first horizontal direction. The first pulling jaw 3171 is configured to pick up the film strip from the cutting assembly 313 and feed the picked-up film strip towards the second pulling jaw 3181, and the second pulling jaw 3181 is configured to pull the film strip away from the first pulling jaw 3171. After the cutting assembly 313 cuts the film strip, the first pulling jaw 3171 and the second pulling jaw 3181 respectively clamp one end of the cut film strip.

[0143] It can be seen that through the cooperation of the first pulling unit 317 and the second pulling unit 318, the pulling assembly 314 realizes pulling a film strip of a predetermined length to the side of the carrying mechanism 1, and after the cutting assembly 313 cuts the film strip, clamping both ends of the cut film strip from both ends, and finally realizing that n first film strips are supplied and held on the side of the carrying mechanism 1.

[0144] In this embodiment, the structure of the second spacing mechanism 42 is the same as that of the first spacing mechanism 32. Therefore, hereinafter, the first spacing mechanism 32 will be taken as an example to illustrate the structure and working process of the first spacing mechanism 32 and the second spacing mechanism 42.

[0145] As Figures 2 to 3 shown, the first spacing mechanism 32 includes two sets of spacing components arranged at intervals. The two sets of spacing components are configured to respectively pick up both ends of n first film strips from the pulling assembly 314, space the n first film strips, and the two sets of spacing components are also configured to place the n first film strips after spacing on the carrying mechanism.

[0146] The two sets of spacing components clamp both ends of the n first film strips, and complete the spacing and placement of the n first film strips, which can realize avoiding the carrying mechanism 1 and prevent touching the carrying mechanism 1.

[0147] As Figure 2 and Figure 6As shown, in an alternative embodiment, both of the two component spacing assemblies include a spacing belt 321 disposed along the second horizontal direction. n first spacing jaws 322 corresponding to the first film strips one by one are equidistantly installed on the spacing belt 321, and the spacing between the first spacing jaws 322 is equal to the first spacing. The spacing belt 321 is configured to drive the n first spacing jaws 322 to pass through one side of the pulling assembly 314 in sequence, so that each first spacing jaw 322 respectively clamps one end of the corresponding first film strip located on the pulling assembly 314. When the first film strip moves to the target position under the drive of the first spacing jaw 322, the first spacing jaw 322 releases the first film strip, causing the first film strip to fall on the bearing mechanism 1.

[0148] Since the spacing between the n first spacing jaws 322 is equal to the first spacing, when the spacing belt 321 drives the n first spacing jaws 322 to sequentially clamp a first film strip from the pulling assembly 314 and convey the clamped first film strip above the bearing mechanism 1, the spacing between the n first film strips is adjusted to the first spacing.

[0149] Optionally, the spacing belt 321 is a spacing chain driven by a sprocket or a timing belt driven by a timing pulley.

[0150] As Figure 7 and Figure 8 shown, in another alternative embodiment, both of the two component spacing assemblies include a moving unit (not shown in the figure), a mounting base 323, a guide rail 324, a spacing driving unit 325, and n second spacing jaws 326 corresponding to the first film strips one by one, where: the mounting base 323 is disposed on the moving unit, the guide rail 324 is installed on the mounting base 323 along the second horizontal direction, and the n second spacing jaws 326 are installed on the guide rail 324. The moving unit is configured to drive the mounting base 323 to move towards the pulling assembly 314, so that the n second spacing jaws 326 respectively clamp one end of the corresponding first film strip located on the pulling assembly 314. The spacing driving unit 325 is disposed on the mounting base 323, and the spacing driving unit 325 is configured to drive the n second spacing jaws 326 to slide and separate along the guide rail 324 to complete the spacing of the n first film strips.

[0151] By driving the n second spacing jaws 326 to move along the guide rail 324 through the spacing driving unit 325, the n first film strips clamped by the n second spacing jaws 326 are spaced apart automatically. The overall structure is simple and the smoothness of the film strip spacing action is good.

[0152] Optionally, among the n second distance separating jaws 326, the first second distance separating jaw 326 is fixedly installed on the guide rail 324, and the second to the nth second distance separating jaws 326 are all slidably installed on the guide rail 324. Each of the second distance separating jaws 326 is connected by a flexible member. When the nth second distance separating jaw 326 is drivingly connected to the distance separating driving unit 325 and the distance separating driving unit 325 drives the nth second distance separating jaw 326 to slide along the guide rail 324, the second to the (n - 1)th second distance separating jaws 326 are driven to slide along the guide rail 324 through the flexible member, thereby completing the distance separation of the n first film strips.

[0153] Optionally, the distance separating driving unit 325 includes a synchronous belt disposed on the mounting base along the second horizontal direction. The nth second distance separating jaw 326 is fixedly connected to one side belt body of the synchronous belt. When the synchronous belt rotates, it drives the nth second distance separating jaw 326 to slide along the guide rail.

[0154] When the height difference between the first distance separating jaw 322 or the second distance separating jaw 326 and the loading mechanism 1 is too large, the first film strip is prone to positional deviation during the falling process. For this reason, optionally, the distance separating assembly is configured to be liftable, or the loading mechanism 1 is configured to be liftable. Before the first distance separating jaw 322 releases the first film strip, first control the distance separating assembly to descend towards the loading mechanism 1, or first control the loading mechanism 1 to ascend towards the distance separating assembly until the n first film strips clamped on the distance separating assembly are close to the loading surface of the loading mechanism 1, and then the first distance separating jaw 322 or the second distance separating jaw 326 releases the first film strip.

[0155] Optionally, positioning grooves may also be provided on the loading surface of the loading mechanism 1 (i.e., the loading surfaces of the first loading platform 11 and the second loading platform 12). The first film strips released by the first distance separating jaw 322 or the second distance separating jaw 326 fall into the corresponding positioning grooves. In this way, it can be further ensured that the first film strips can be accurately attached to the target positions on the back.

[0156] Second Embodiment

[0157] The structure of the backplane film laminating device in this embodiment is basically the same as that of the backplane film laminating device in the first embodiment. For the sake of brief description, only the differences of this embodiment compared with the first embodiment will be described specifically here. For the rest of the same or similar parts, please refer to the relevant description of the first embodiment and will not be elaborated here.

[0158] As Figure 10 shown, compared with the backplane film laminating device of the first embodiment, the main difference of the backplane film laminating device in this embodiment is that the second transfer part 51 of the transfer mechanism 5 of the board film laminating device in this embodiment includes a transfer conveyor line and a third handling component 513, where:

[0159] Among them, the transfer conveyor line is located below the first carrier table 11 and the second carrier table 12, and is configured to directly transfer the backplane 100 with the first film strip attached thereon located on the first carrier table 11 to the second carrier table 12. The third handling assembly 513 is configured to pick up the backplane 100 with the film strip attached thereon from the second carrier table 12 and stack the backplane 100 with the film strip attached thereon onto the battery string group located at the blanking station B.

[0160] By setting the second transfer part 51 to include a transfer conveyor line and a third handling assembly 513, while the third handling assembly 513 stacks the backplane with the film strip attached thereon on the second carrier table 12 onto the battery string group located at the blanking station B, the transfer conveyor line transfers the backplane with the first film strip attached thereon on the first carrier table 11 to the second carrier table 12. In this way, the working rhythm can be further accelerated and the film covering efficiency can be improved.

[0161] Third Embodiment

[0162] The structure of the backplane film covering device in this embodiment is basically the same as that of the backplane film covering device in the first embodiment. Similarly, for the sake of brief description, only the differences between this embodiment and the first embodiment will be specifically described here. For the rest of the same or similar parts, please refer to the relevant description of the first embodiment and will not be elaborated here.

[0163] As Figure 11 shown, compared with the backplane film covering device in the first embodiment, the main difference of the backplane film covering device in this embodiment is that the carrier mechanism 1 in this embodiment only includes one carrier table, that is, Figure 11 the third carrier table 13 in

[0164] A number of third adsorption holes and a number of third avoidance holes 131 are provided on the third carrier table 13.

[0165] The first feeding mechanism 31 is arranged along the first horizontal direction (the X-axis direction in the figure) on the first side of the third carrier table 13, and the first spacing mechanism 32 is arranged at the opposite first end and second end of the third carrier table 13.

[0166] The second feeding mechanism 41 is arranged along the second horizontal direction (the Y-axis direction in the figure) on the second side of the third carrier table 13 adjacent to the first side, and the second spacing mechanism 42 is arranged at the opposite third end and fourth end of the third carrier table 13.

[0167] The first spacing mechanism 32 is configured to place n first film strips after spacing completion onto the third carrier table 13, and the second spacing mechanism 42 is configured to place m second film strips after spacing completion onto the third carrier table 13, such that the m second film strips are vertically stacked on the n first film strips. The third carrier table 13 is configured to adsorb the n first film strips and the m second film strips through the third adsorption holes.

[0168] The transfer mechanism 5 is configured to transfer the backplane 100 picked up from the loading station A onto the third carrier table 13, so that the n first film strips and the m second film strips are abutted against the lower surface of the backplane 100.

[0169] The heating mechanism 2 is configured to heat the n first film strips and the m second film strips through the third avoidance hole 131, so that the n first film strips and the m second film strips are adhered to the lower surface of the backplane 100.

[0170] The transfer mechanism 5 is further configured to pick up the backplane 100 with the film strips adhered thereon from the third carrier table 13, and stack the backplane 100 with the film strips adhered thereon onto the battery string group located at the unloading station B.

[0171] The adhering operations of the first film strips and the second film strips are both completed on the third carrier table 13, thereby reducing the equipment size and equipment cost. In addition, in this embodiment, the first film strips and the second film strips are adhered to the back surface of the backplane 100 at one time, thereby improving the film covering efficiency.

[0172] Optionally, in order to prevent interference between the first spacing mechanism 32 and the second spacing mechanism 42, optionally, at least one of the first spacing mechanism 32 and the second spacing mechanism 42 is configured to be liftable, so that the first spacing mechanism 32 and the second spacing mechanism 42 are staggered by a certain distance in the vertical direction when spacing and placing the first film strips and the second film strips.

[0173] Continue to refer to Figure 11 As shown, optionally, the transfer mechanism 5 includes a third transfer part (not shown in the figure) and a fourth transfer part 52, wherein: the third transfer part is configured to pick up the backplane 100 from the loading station A and transfer the picked-up backplane 100 onto the third carrier table 13. The fourth transfer part 52 is configured to pick up the backplane 100 with the film strips adhered thereon from the third carrier table 13, and stack the backplane 100 with the film strips adhered thereon onto the battery string group located at the unloading station B.

[0174] By setting the transfer mechanism to include a third transfer part and a fourth transfer part 52, when the fourth transfer part 52 stacks the backplane 100 with the film strip attached thereon on the third carrier table 13 onto the battery string group located at the blanking station B, the third transfer part transfers the next backplane 100 to be film-coated at the loading station onto the third carrier table 13. In this way, the working rhythm can be further accelerated and the film-coating efficiency can be improved.

[0175] As mentioned in the first embodiment, for the completed photovoltaic module after lamination, wiring needs to be carried out through the through-holes prefabricated on the backplane. However, the film strip attached to the backplane 100 can easily block the through-holes on the backplane 100, thus affecting the wiring. Similar to the first embodiment, to solve this problem, optionally, a punching member is further provided on the fourth transfer part 52. During the process of the fourth transfer part 52 stacking the backplane 100 with the film strip attached thereon onto the battery string group located at the blanking station B, the punching member punches the film strip through the through-holes on the backplane, so as to remove the first film strip or the second film strip blocking the through-holes.

[0176] The above description of the present application is detailed enough and has a certain particularity. Those of ordinary skill in the art should understand that the description in the embodiments is only exemplary, and all changes made without departing from the true spirit and scope of the present application should fall within the protection scope of the present application. The scope to be protected by the present application is defined by the claims described, rather than by the above description in the embodiments.

Claims

1. A backplane laminating device, characterized in that: The backplane laminating device comprises a bearing mechanism, a heating mechanism, a first laying mechanism, a second laying mechanism and a transfer mechanism, wherein: The heating mechanism is arranged below the carrying mechanism; The first laying mechanism is configured to lay n first film strips extending along a first horizontal direction and having a first spacing in a second horizontal direction onto the carrying mechanism; The second laying mechanism is configured to lay m second film strips extending along a second horizontal direction and having a second spacing in the first horizontal direction onto the carrying mechanism, wherein the second horizontal direction is perpendicular to the first horizontal direction; The transfer mechanism is configured to transfer the backboard to the carrying mechanism, so that the n first film strips located on the carrying mechanism are in contact with the lower surface of the backboard, and the m second film strips located on the carrying mechanism are in contact with the lower surface of the backboard, the length direction of the backboard is parallel to the first horizontal direction, and the width direction of the backboard is parallel to the second horizontal direction; The heating mechanism is configured to heat n first film strips abutting against the lower surface of the back plate, so that the n first film strips are abutted against the lower surface of the back plate, and is configured to heat m second film strips abutting against the lower surface of the back plate, so that the m second film strips are abutted against the lower surface of the back plate; The transfer mechanism is also configured to move the back plate that has been coated with the film strip away from the carrying mechanism; Wherein, m and n are both integers greater than 1.

2. The backplane laminating device according to claim 1, characterized in that: The first laying mechanism includes a first feeding mechanism and a first spacing mechanism, wherein: The first feeding mechanism is configured to supply n first film strips extending along a first horizontal direction to the side of the carrying mechanism; The first spacing mechanism is configured to obtain n first film strips from the first feeding mechanism, and to spacing the n first film strips along the second direction, so as to adjust the spacing between the n first film strips to the first spacing, and the first spacing mechanism is further configured to place the n first film strips that have been spacing-completed onto the carrying mechanism; The second laying mechanism includes a second feeding mechanism and a second spacing mechanism, wherein: The second feeding mechanism is configured to supply m second film strips extending along a second horizontal direction to the side of the carrying mechanism; The second spacing mechanism is configured to obtain m second film strips from the second feeding mechanism, and to spacing the m second film strips along the first direction to adjust the spacing between the m second film strips to the second spacing, and the second spacing mechanism is also configured to place the m second film strips that have completed spacing onto the carrying mechanism.

3. The backplane coating device according to claim 2, characterized in that: The backplane coating equipment also includes a backplane conveyor line and a battery assembly conveyor line, wherein: The backplane conveyor line is arranged along the first horizontal direction, and is configured to convey the backplane along the first horizontal direction. A loading station close to the carrying mechanism is provided on the conveying path of the backplane conveyor line, and the transfer mechanism is configured to pick up the backplane from the loading station and transfer the picked up backplane to the carrying mechanism; The battery assembly conveyor line is arranged along the second horizontal direction and passes under the supporting mechanism. The battery assembly conveyor line is configured to convey the battery assemblies along the second horizontal direction. A material unloading station close to the supporting mechanism is provided on the conveying path of the battery assembly conveyor line. The transfer mechanism is configured to stack the back panel with completed film strip coating moved from the supporting mechanism onto the battery assembly located at the material unloading station.

4. The backplane coating device according to claim 3, characterized in that: The carrying mechanism comprises a first carrying platform and a second carrying platform arranged side by side along the second horizontal direction, wherein: The first bearing platform is provided with a plurality of first adsorption holes and a plurality of first avoidance holes, and the second bearing platform is provided with a plurality of second adsorption holes and a plurality of second avoidance holes; The first feeding mechanism is arranged at the side of the first carrying platform along the first horizontal direction, and the first spacing mechanism is arranged at the opposite first end and second end of the first carrying platform; the second feeding mechanism is arranged at the side of the second carrying platform along the second horizontal direction, and the second spacing mechanism is arranged at the opposite third end and fourth end of the second carrying platform; The first spacing mechanism is configured to place the n first film strips that have been spaced apart on the first carrying platform, and the first carrying platform adsorbs the n first film strips through the first adsorption holes. The transfer mechanism is configured to transfer the back plate picked up from the loading station to the first carrying platform, so that the n first film strips are attached to the lower surface of the back plate. The heating mechanism is configured to heat the n first film strips through the first avoidance holes so that the n first film strips are attached to the lower surface of the back plate; The second spacing mechanism is configured to place the m second film strips that have been separated on the second carrier, and the second carrier absorbs the m second film strips through the second absorption holes. The transfer mechanism is also configured to transfer the backing plate that has been coated with the first film strips and is located on the first carrier to the second carrier, so that the m second film strips are attached to the lower surface of the backing plate. The heating mechanism is configured to heat the m second film strips through the second avoidance holes so that the m second film strips are attached to the lower surface of the back plate; The transfer mechanism is configured to pick up the backplane coated with the film strips on the second carrying platform, and stack the backplane coated with the film strips on the battery string group located at the unloading station.

5. The backplane coating device according to claim 4, characterized in that: The heating mechanism is provided in two groups, wherein one group of the heating mechanism is provided below the first supporting platform and is configured to heat n first film strips through the first avoidance holes; Another group of the heating mechanisms is disposed below the second supporting platform and is configured to heat m second film strips through the second avoidance holes.

6. The backplane coating device according to claim 4, characterized in that: The transfer mechanism comprises a first transfer unit and a second transfer unit, wherein: The first transfer unit is configured to pick up a back plate from the loading station and transfer the picked up back plate to the first loading platform; The second transfer unit is configured to transfer the back panel coated with the first film strip on the first loading platform to the second loading platform, and is configured to pick up the back panel coated with the film strip from the second loading platform, and stack the back panel coated with the film strip on the battery string group located at the unloading station.

7. The backplane coating device according to claim 6, characterized in that: The second transfer unit includes a first transport component and a second transport component, wherein: The first transport component is configured to pick up the backboard coated with the first film strip from the first carrying platform, and transport the picked-up backboard coated with the first film strip to the second carrying platform; The second transport assembly is configured to pick up the backplane coated with the film strips from the second carrying platform, and stack the backplane coated with the film strips on the battery string group located at the unloading station.

8. The backplane coating device according to claim 6, characterized in that: The second transfer unit includes a transfer conveyor line and a third handling component. in: The transfer conveyor line is located below the first loading platform and the second loading platform, and is configured to transport the back panel on the first loading platform that has been coated with the first film strip to the second loading platform; The third transport assembly is configured to pick up the backplane coated with the film strips from the second carrying platform, and stack the backplane coated with the film strips onto the battery string group located at the unloading station.

9. The backplane coating device according to claim 4, characterized in that: The bearing mechanism comprises a third bearing platform, wherein: The third bearing platform is provided with a plurality of third adsorption holes and a plurality of third avoidance holes; The first feeding mechanism is arranged on a first side of the third loading platform along the first horizontal direction, and the first spacing mechanism is arranged at the first end and the second end opposite to the third loading platform; the second feeding mechanism is arranged on a second side of the third loading platform adjacent to the first side along the second horizontal direction, and the second spacing mechanism is arranged at the third end and the fourth end opposite to the third loading platform; The first spacing mechanism is configured to place the n first film strips that have been separated on the third carrier, and the second spacing mechanism is configured to place the m second film strips that have been separated on the third carrier, so that the m second film strips are vertically stacked on the n first film strips; The third carrying platform is configured to absorb n first film strips and m second film strips through the third absorption holes; The transfer mechanism is configured to transfer the back plate picked up from the loading station to the third carrying platform so that n first film strips and m second film strips are attached to the lower surface of the back plate; The heating mechanism is configured to heat n first film strips and m second film strips through the third avoidance holes, so that the n first film strips and m second film strips are attached to the lower surface of the back plate; The transfer mechanism is also configured to pick up the backplane coated with the film strips from the third carrying platform, and stack the backplane coated with the film strips on the battery string group located at the unloading station.

10. The backplane coating device according to claim 9, characterized in that: The transfer mechanism includes a third transfer unit and a fourth transfer unit, wherein: The third transfer unit is configured to pick up a back plate from the loading station and transfer the picked back plate to the third loading platform; The fourth transfer unit is configured to pick up the backplane coated with the membrane strips from the third loading platform, and stack the backplane coated with the membrane strips on the battery string group located at the unloading station.

11. The backplane coating device according to claim 9, characterized in that: The heating mechanism includes a lifting drive unit, a heating plate and a plurality of heating heads, wherein: The heating plate is horizontally connected to the lifting end of the lifting drive unit, and a plurality of heating heads are arranged on the heating plate. When the lifting drive unit drives the heating plate to rise, each heating head passes upward through the first avoidance hole, the second avoidance hole or the third avoidance hole to implement contact heating of the first film strip or the second film strip.

12. The backplane laminating device according to claim 2, characterized in that: The second feeding mechanism has the same structure as the first feeding mechanism, and the first feeding mechanism includes a feeding assembly, a slitting assembly, a cutting assembly and a pulling assembly, wherein: The unwinding assembly is configured to fix the film tape roll and drive the film tape roll to rotate to deliver the film tape; The pulling assembly is arranged at the side of the carrying mechanism, the cutting assembly is arranged between the unwinding assembly and the pulling assembly, and the pulling assembly is configured to clamp the end of the film tape released by the unwinding assembly from the cutting assembly and pull the film tape, so that the film tape of a predetermined length passes through the cutting assembly and reaches the side of the carrying mechanism along the first horizontal direction; When a film tape of a predetermined length passes through the cutting assembly, the cutting assembly presses the film tape and cuts the film tape, and the pulling assembly is further configured to clamp two ends of the cut film tape; The slitting assembly is located between the unloading assembly and the cutting assembly, and the film tape unloaded by the unloading assembly passes through the slitting assembly and the cutting assembly in sequence under the pulling of the pulling assembly, and the slitting assembly is configured to slit the film tape along the length direction of the film tape, so that the film tape pulled to the side of the carrying mechanism is slit into n film strips extending along the first horizontal direction; or; The slitting component is located on the pulling path of the pulling component. After the cutting component cuts the film tape, the slitting component moves along the first horizontal direction from one end of the cut film tape to the other end of the cut film tape to cut the film tape into n film strips extending along the first horizontal direction.

13. The backplane coating device according to claim 12, characterized in that: The slitting assembly is located between the unloading assembly and the cutting assembly; The slitting assembly comprises a first rotary cutter and a second rotary cutter arranged in pairs, and the film tape passes through the twisted portion of the first rotary cutter and the second rotary cutter; The first rotary cutter comprises a first rotating shaft and n-1 first blades arranged side by side on the first rotating shaft along the length direction of the first rotating shaft; The second rotary cutter comprises a second rotating shaft and n-1 second blades arranged side by side on the second rotating shaft along the length direction of the second rotating shaft and matching the first blades one by one; When the film tape passes through the twisted portion between the first rotary cutter and the second rotary cutter, n-1 of the first blades and n-1 of the second blades cooperate to cut the film tape.

14. The backplane coating device according to claim 12, characterized in that: The slitting assembly is located on the pulling path of the pulling assembly, and the slitting assembly includes a translation drive unit, a lifting drive unit and a cutter, wherein: The lifting drive unit is connected to the driving end of the translation drive unit, the cutter is connected to the driving end of the lifting drive unit, and the cutter includes n-1 third blades arranged side by side along the second horizontal direction; When the pulling assembly pulls the film tape, the lifting drive unit drives the cutter to rise to the avoidance high position; after the cutting assembly cuts the film tape, the lifting drive unit drives the cutter to descend to the cutting low position, so that n-1 third blades abut against the cut film tape, and the translation drive unit drives the cutter to move along the first horizontal direction from one end of the cut film tape to the other end of the cut film tape, so as to cut the film tape into n film strips extending along the first horizontal direction.

15. The backplane coating device according to claim 12, characterized in that: The pulling assembly comprises a first pulling unit and a second pulling unit arranged side by side along the first horizontal direction, wherein: The first pulling unit is close to the cutting assembly, and the first pulling unit has a first pulling clamping claw, and the first pulling clamping claw can translate along the first horizontal direction; The second pulling unit is away from the cutting assembly, and the second pulling unit has a second pulling clamping jaw, wherein the second pulling clamping jaw can translate along the first horizontal direction, The first pulling jaw is configured to clamp the film tape from the cutting assembly and feed the clamped film tape toward the second pulling jaw, and the second pulling jaw is configured to pull the film tape away from the first pulling jaw; After the cutting assembly cuts the film tape, the first pulling clamp and the second pulling clamp respectively clamp one end of the cut film tape.

16. The backplane coating device according to claim 12, characterized in that: The second spacing mechanism has the same structure as the first spacing mechanism. The first spacing mechanism includes two groups of spacing components that are spaced apart. The two groups of spacing components are configured to respectively clamp the two ends of n first film strips from the pulling component and spacing the n first film strips. The two groups of spacing components are also configured to place the n first film strips after spacing onto the supporting mechanism.

17. The backplane coating device according to claim 16, characterized in that: The two groups of the spacing components each include a spacing belt arranged along the second horizontal direction, on which n first spacing clamping jaws corresponding to the first film strips are installed at equal distances, and the spacing between the first spacing clamping jaws is equal to the first spacing; The spacing belt is configured to drive n first spacing clamping claws to pass through one side of the pulling assembly in sequence, so that each of the first spacing clamping claws respectively clamps one end of the corresponding first film strip located on the pulling assembly; When the first film strip is moved to the target position driven by the spacing clamping jaw, the first spacing clamping jaw releases the first film strip, so that the first film strip falls on the carrying mechanism.

18. The backplane coating device according to claim 17, characterized in that: The spacing belt is a spacing chain driven by a sprocket or a synchronous belt driven by a synchronous belt wheel.

19. The backplane coating device according to claim 16, characterized in that: The two groups of spacing components both include a moving unit, a mounting seat, a guide rail, a spacing driving unit, and n second spacing clamping jaws corresponding to the first film strips one by one, wherein: The mounting seat is arranged on the moving unit, the guide rail is mounted on the mounting seat along the second horizontal direction, and n second spacing clamping claws are mounted on the guide rail; The moving unit is configured to drive the mounting seat to move toward the pulling assembly, so that the n second spaced-apart clamping jaws respectively clamp one end of the corresponding first film strip located on the pulling assembly; The spacing driving unit is disposed on the mounting seat, and the spacing driving unit is configured to drive the n second spacing clamping jaws to slide and separate along the guide rail to complete the spacing of the n first film strips.

20. The backplane coating device according to claim 19, characterized in that: Among the n second-spacing jaws, the first second-spacing jaw is fixedly mounted on the guide rail, the second to nth second-spacing jaws are all slidably mounted on the guide rail, each of the second-spacing jaws is connected by a flexible member, the nth second-spacing jaw is transmission-connected to the spacing driving unit, and when the spacing driving unit drives the nth second-spacing jaw to slide along the guide rail, the second to n-1th second-spacing jaws are driven to slide along the guide rail through the flexible member to complete the spacing of the n first membrane strips.

21. The backplane coating device according to claim 19, characterized in that: The spacing drive unit includes a synchronous belt arranged on the mounting seat along the second horizontal direction, and the nth second spacing clamp is fixedly connected to a belt body on one side of the synchronous belt. When the synchronous belt rotates, it drives the nth second spacing clamp to slide along the guide rail.

22. The backplane coating device according to claim 10, characterized in that: The fourth transfer unit is further configured to punch holes in the film strip at a predetermined position on the back plate when picking up the back plate coated with the film strip from the third carrying platform.

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