Film strip carrying mechanism and film strip carrying device

Abstract

The utility model provides a film strip carrying mechanism and a film strip carrying device. The film strip carrying mechanism comprises a mounting frame, a heating assembly and a plurality of suction cups. The heating assembly is arranged on the mounting frame in the first direction, and the bottom of the heating assembly is provided with a heating surface; the suckers are arranged on the heating assembly or the mounting frame at intervals in the first direction, and each sucker can float up and down relative to the heating assembly; the adsorption ends of the plurality of suckers downwards extend out of the heating surface in a natural state so as to cooperatively adsorb a reflective film strip extending along a first direction; the suckers float upwards after being pressed, the heating surface of the heating assembly is flush with the adsorption ends of the suckers, and the heating assembly heats the reflective film strips adsorbed by the suckers through the heating surface. According to the film strip carrying mechanism, automatic carrying and heating bonding of the reflective film strips are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of photovoltaic module production equipment, in particular to a film strip carrying mechanism and a film strip carrying device. BACKGROUND

[0002] A photovoltaic module is usually encapsulated by a back plate, a lower adhesive film, a cell string group, an upper adhesive film and a glass plate, wherein there is a gap between two adjacent cell pieces in the cell string group and between two adjacent cell strings, and the light energy irradiated to these gaps is difficult to be directly absorbed or utilized. In order to improve the utilization rate of light energy, the industry adopts a reflective film strip with a reflective performance corresponding to the inter-piece and inter-string positions on the back plate, and reflects the light energy irradiated to the above-mentioned gap positions to the glass plate through the reflective film strip, and then to the cell piece through the glass plate, so as to fully utilize the light energy at the gap.

[0003] As shown in Figure 1 The first reflective film strip 200 extending along the short edge direction of the back plate 100 is the reflective film strip corresponding to the inter-piece position, and the second reflective film strip 300 extending along the long edge direction of the back plate is the reflective film strip corresponding to the inter-string position. The second reflective film strip 300 intersects the first reflective film strip 200 perpendicularly, and the number of reflective film strips changes with the change of the module format.

[0004] A film pasting method is to carry, lay and heat and bond the prepared second reflective film strip 300 on the back plate after laying the first reflective film strip 200 on the back plate, so a film strip carrying mechanism capable of automatically carrying and heat bonding the reflective film strip is needed. CONTENT OF THE INVENTION

[0005] In view of the above technical problems, the present application provides a film strip carrying mechanism, and the detailed technical solutions are as follows:

[0006] A film strip carrying mechanism applied to a device for pasting a reflective film strip on a back plate of a photovoltaic module, the film strip carrying mechanism comprising a mounting frame, a heating assembly and a plurality of suction cups, wherein:

[0007] The heating assembly is arranged on the mounting frame along a first direction, and the bottom of the heating assembly has a heating surface;

[0008] The plurality of suction cups are arranged on the heating assembly or the mounting frame along the first direction, and each suction cup can float up and down relative to the heating assembly;

[0009] The suction end of each suction cup extends downward beyond the heating surface in a natural state, so as to cooperate with the suction of the reflective film strip extending along the first direction;

[0010] When the plurality of suction cups are pressed and float upward, the heating surface of the heating assembly is flush with the suction end of the plurality of suction cups, and the heating assembly heats the reflective film strip adsorbed by the plurality of suction cups through the heating surface.

[0011] The film strip conveying mechanism provided in the application can automatically convey and heat and bond the reflective film strip.

[0012] In some embodiments, the heating assembly comprises a first mounting plate and a plurality of heating heads, wherein: the first mounting plate is connected to the mounting frame, the plurality of heating heads are arranged at intervals on the first mounting plate along a first direction, and each heating head is connected to the first mounting plate in a manner that can float up and down; the bottom surface of each heating head together forms the heating surface, each heating head is arranged in line with each suction cup, and the heating heads and the suction cups are arranged at intervals.

[0013] Since each heating head is connected to the first mounting plate in a manner that can float up and down, when the plurality of suction cups press and lay the reflective film strip on the back plate, each heating head can eventually contact the reflective film strip by floating up, so that the reflective film strip can be firmly bonded to the back plate.

[0014] In some embodiments, the first mounting plate is provided with a first heating assembly, and the first mounting plate heats each heating head through the first heating assembly; or each heating head is provided with a first heating assembly.

[0015] By arranging the first heating assembly in the first mounting plate, the first mounting plate can uniformly heat each heating head, thereby improving the heating uniformity of different positions of the reflective film strip. By arranging the first heating assembly in each heating head, independent temperature control of each heating head can be achieved, thereby improving the heating effect of the film strip. For example, the temperature of the heating heads located at both ends of the first mounting plate can be higher than that of the other heating heads, so that the two ends of the film strip can be more firmly bonded to the back plate.

[0016] In some embodiments, among the heating heads of the heating assembly, the heating head close to the first end of the first mounting plate has an L-shaped bottom surface facing the outer side of the first mounting plate and opening towards the first end, the heating head close to the second end of the first mounting plate has an L-shaped bottom surface facing the outer side of the first mounting plate and opening towards the second end, and the remaining heating heads all have a U-shaped bottom surface opening towards the outer side of the first mounting plate; or, among the heating heads of the heating assembly, the heating head close to the first end of the first mounting plate has a U-shaped bottom surface opening towards the first end of the first mounting plate, the heating head close to the second end of the first mounting plate has a U-shaped bottom surface opening towards the second end of the first mounting plate, and the remaining heating heads all have a ring-shaped bottom surface.

[0017] In a film pasting mode, after the first reflective film strip is laid on the back plate, the film strip conveying mechanism of the present application is used to lay the second reflective film strip on the back plate. When the second reflective film strip is laid on the back plate, it perpendicularly intersects the first reflective film strip, generating a plurality of intersection points. The thickness of the intersection points of the second reflective film strip and the first reflective film strip is greater than the thickness of other positions of the second reflective film strip. Therefore, if the bottom surface of the heating head is a plane, when the heating head presses the second reflective film strip onto the back plate, the bottom surface of the heating head will be blocked by the intersection points on the second reflective film strip, causing the heating head to only heat the intersection points and unable to heat the remaining positions of the second reflective film strip, thereby affecting the film pasting effect. By setting the bottom surface of each heating head, each heating head can avoid the intersection points at the corresponding positions, so that the second reflective film strip near the intersection points and the first reflective film strip can both be heated by the heating head, ultimately ensuring the film pasting effect.

[0018] In some embodiments, among the heating heads of the heating assembly, the heating head close to the first end of the first mounting plate and the heating head close to the second end of the first mounting plate are both provided with a first heating needle, which is connected to the heating head in a floating manner and avoids the bottom surface of the heating head; the first heating needle is used to heat the end of the film strip.

[0019] By providing the first heating needle on the heating head at the position of the two ends of the first mounting plate, when the heating head presses the second reflective film strip onto the back plate, the first heating needle can press and heat the intersection points at the two ends of the reflective film strip, ensuring that the two ends of the reflective film strip can be firmly bonded to the back plate.

[0020] In some embodiments, the heating assembly comprises a second mounting plate, which is connected to the mounting frame, and the bottom surface of the second mounting plate constitutes the heating surface.

[0021] When the plurality of suction cups press and lay the reflective film strip onto the back plate, the bottom surface of the second mounting plate can be tightly fitted on the reflective film strip, thereby bonding the reflective film strip to the back plate.

[0022] In some embodiments, a second heating assembly is arranged in the second mounting plate.

[0023] By setting the second heating assembly in the second mounting plate, the second mounting plate can implement uniform heating on the reflective film strip.

[0024] In some embodiments, the bottom surface of the second mounting plate is provided with a plurality of avoiding grooves in the first direction, wherein: the avoiding grooves near the first end of the second mounting plate are L-shaped grooves and open towards the outer side and the first end of the second mounting plate; the avoiding grooves near the second end of the second mounting plate are L-shaped grooves and open towards the outer side and the second end of the second mounting plate; the remaining avoiding grooves are U-shaped grooves and open towards the outer side of the second mounting plate; or, the avoiding grooves near the first end of the second mounting plate are U-shaped grooves and open towards the first end of the second mounting plate; the avoiding grooves near the second end of the second mounting plate are U-shaped grooves and open towards the second end of the second mounting plate; and the remaining avoiding grooves are rectangular or circular closed grooves.

[0025] In a film pasting mode, after the first reflective film strip is laid on the back plate, the film strip carrying mechanism of the present application is used to lay the second reflective film strip on the back plate. When the second reflective film strip is laid on the back plate, it perpendicularly intersects with the first reflective film strip, generating a plurality of intersection points. The thickness of the intersection points of the second reflective film strip and the first reflective film strip is greater than the thickness of other positions of the second reflective film strip. Therefore, if the bottom surface of the second mounting plate is a plane, when the second mounting plate presses the second reflective film strip onto the back plate, the bottom surface of the second mounting plate will be blocked by the intersection points on the second reflective film strip, causing the second mounting plate to only heat the intersection points and unable to heat the remaining positions of the second reflective film strip, thereby affecting the film pasting effect. By setting a plurality of avoiding grooves on the second mounting plate of the film strip carrying mechanism according to the pasting position of the second reflective film strip on the back plate, and setting the shape of the plurality of avoiding grooves, the second mounting plate can avoid the intersection points on the second reflective film strip (or the intersection points enter the avoiding grooves), and the second reflective film strip near the intersection points and the first reflective film strip can be heated by the heating head, finally ensuring the film pasting effect.

[0026] In some embodiments, the avoiding grooves near the first end of the second mounting plate and the avoiding grooves near the second end of the second mounting plate are provided with second heating needles, which are connected to the second mounting plate in a floating manner up and down, and are used to heat the end portions of the reflective film strip.

[0027] By setting the second heating needles in the avoiding grooves at the two end positions of the second mounting plate, when the second mounting plate adheres the reflective film strip to the back plate, the second heating needles can implement compression and heating on the intersection positions of the two ends of the reflective film strip, ensuring that the two ends of the reflective film strip are firmly adhered to the back plate.

[0028] The application also provides a film strip conveying device, which comprises a driving mechanism and a plurality of film strip conveying mechanisms, wherein the plurality of film strip conveying mechanisms are connected to the moving part of the driving mechanism in a second direction and are driven by the driving mechanism to move synchronously; each film strip conveying mechanism is used for conveying and heating a reflective film strip extending in a first direction; and the second direction is perpendicular to the first direction.

[0029] The film strip conveying device in the application can convey and bond a plurality of reflective film strips to a backboard synchronously under the driving of the driving mechanism, thereby improving the film pasting efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 A structural schematic diagram of a backboard after film strip pasting is completed;

[0031] Figure 2 A three-dimensional schematic diagram of a film strip conveying mechanism of one structure in the first embodiment of the application;

[0032] Figure 3 A bottom view schematic diagram of a film strip conveying mechanism of one structure in the first embodiment of the application;

[0033] Figure 4 A side view schematic diagram of a film strip conveying mechanism of one structure in the first embodiment of the application;

[0034] Figure 5 A C-C sectional view of Figure 4 ;

[0035] Figure 6 A B-B sectional view of Figure 4 ;

[0036] Figure 7 A partial bottom view schematic diagram of a film strip conveying mechanism of another structure in the first embodiment of the application;

[0037] Figure 8 A partial side view schematic diagram of a film strip conveying mechanism of another structure in the first embodiment of the application;

[0038] Figure 9 A C-C sectional view of Figure 8 ;

[0039] Figure 10 A three-dimensional schematic diagram of a film strip conveying mechanism of one structure in the second embodiment of the application;

[0040] Figure 11 A bottom view schematic diagram of a film strip conveying mechanism of one structure in the second embodiment of the application;

[0041] Figure 12For Figure 11 D-D cross-sectional view;

[0042] Figure 13 For another structure of the film strip conveying mechanism in the second embodiment of the application, a partial bottom view is shown.

[0043] Figure 14 For the structure of the film strip conveying device in the embodiment of the application.

[0044] Figures 1 to 13 including:

[0045] The film strip conveying mechanism 1:

[0046] The mounting frame 10;

[0047] The heating assembly 20: the first mounting plate 21, the heating head 22, the first heating component 23, the first heating needle 24, the second mounting plate 25, the avoiding groove 26, the second heating needle 27, the first buffer connecting piece 28, the second buffer connecting piece 29, the needle rod 241, the pressure head 242, the limiting step 251, the limiting part 271, the first spring 281, the guide column 282, the first limiting sleeve 283, the second spring 291, the second limiting sleeve 292, the third buffer connecting piece 210, the third spring 211;

[0048] The suction cup 30;

[0049] The driving mechanism 2: the moving part 201, the distance part 202;

[0050] The backboard 100, the first reflective film strip 200, and the second reflective film strip 300. DETAILED DESCRIPTION

[0051] In order to make the above-mentioned purposes, features and advantages of the application more obvious and easy to understand, the application will be further described in detail below with reference to the drawings and specific embodiments.

[0052] As described in the background section, one existing film pasting method is to convey, lay and heat and bond the prepared second reflective film strip 300 from the carrying table to the backboard after the first reflective film strip 200 is laid on the backboard, so a film strip conveying mechanism capable of automatically conveying and heating and bonding the reflective film strip is needed.

[0053] In order to achieve this purpose, the application provides a film strip conveying mechanism which can be applied to a device for pasting a reflective film strip to a backboard of a photovoltaic module. Figures 2 to 3 The film strip conveying mechanism in the first embodiment of the application is shown, Figures 10 to 11 The film strip conveying mechanism in the second embodiment of the application is shown.

[0054] As Figures 2 to 3 andFigures 10 to 11 As shown, the membrane strip transport mechanism 1 in this embodiment includes a mounting frame 10, a heating assembly 20, and a plurality of suction cups 30, wherein:

[0055] The heating component 20 is disposed on the mounting bracket 10 along a first direction (such as the X direction), and the bottom of the heating component 20 has a heating surface.

[0056] Several suction cups 30 are spaced apart on the heating assembly 20 or the mounting bracket 10 along the first direction, and each suction cup 30 can float up and down relative to the heating assembly 20.

[0057] The suction ends of several suction cups 30 extend downwards from the heated surface in their natural state to cooperate in adsorbing the reflective film strip extending along the first direction.

[0058] Several suction cups 30 float upwards after being pressed, and the heating surface of the heating component 20 is flush with the adsorption end of the several suction cups 30. The heating component 20 heats the reflective film strip adsorbed by the several suction cups 30 through the heating surface.

[0059] The optional working process of the membrane strip transport mechanism 1 in this embodiment is as follows:

[0060] The membrane strip transport mechanism 1 moves to a position above the support platform that carries the reflective membrane strip.

[0061] Subsequently, the film strip transport mechanism 1 descends toward the reflective film strip, so that several suction cups 30 of the film strip transport mechanism 1 come into contact with the reflective film strip and cooperate to pick up the reflective film strip.

[0062] Next, the film strip transport mechanism 1 moves above the back panel, and then the film strip transport mechanism 1 descends, so that several suction cups 30 lay the reflective film strip onto the back panel.

[0063] As the film strip transport mechanism 1 continues to descend, several suction cups 30 are pressed upward and float, thereby causing the heating surface of the heating component 20 to contact the reflective film strip to heat the reflective film strip, and finally causing the reflective film strip to adhere to the back plate.

[0064] As can be seen, the film strip transport mechanism 1 of this application embodiment can automatically transport and lay the reflective film strip onto the back plate, and then heat the reflective film strip so that the reflective film strip is bonded to the back plate after being heated.

[0065] like Figures 2 to 3 As shown, in one optional embodiment, the heating assembly 20 includes a first mounting plate 21 and a plurality of heating heads 22, wherein: the first mounting plate 21 is connected to the mounting bracket 10, and the plurality of heating heads 22 are spaced apart on the first mounting plate 21 along a first direction, and each heating head 22 can be vertically and flexibly connected to the first mounting plate 21. The bottom surfaces of the plurality of heating heads 22 together constitute a heating surface, and each heating head 22 is collinear with each suction cup 30, with the heating heads 22 and the suction cups 30 spaced apart.

[0066] Since each heating head 22 is connected to the first mounting plate 21 in a floating manner, when the reflective film strip is pressed onto the back plate, each heating head 22 can finally contact the reflective film strip through its own floating, so that the film strip is firmly bonded to the back plate after being heated. In addition, since each heating head 22 is arranged in line with each suction cup 30, and the heating head 22 and the suction cup 30 are arranged in a spaced manner, after the suction cup 30 presses the reflective film strip onto the back plate, the heating heads 22 on both sides of the suction cup 30 cooperate to heat the pressed reflective film strip from both sides, thereby further improving the bonding firmness of the reflective film strip.

[0067] As shown in Figures 4 to 5 Optionally, the heating head 22 is connected to the first mounting plate 21 in a floating manner through the first buffer connecting piece 28. The first buffer connecting piece 28 includes a guide column 282, a first limiting sleeve 283, and a first spring 281, wherein the guide column 282 penetrates the first mounting plate 21 and can move up and down along the first mounting plate 21, the upper end of the guide column 282 penetrates the first mounting plate 21 and is fixedly connected with the first limiting sleeve 283, and the heating head 22 is connected to the lower end of the guide column 282. The first spring 281 is sleeved on the guide column 282, the upper end of the first spring 281 abuts against the first limiting sleeve 283, and the lower end of the first spring 281 abuts against the heating head 22.

[0068] The heating head 22 extends downward beyond the first mounting plate 21 in a natural state, and the first spring 281 is naturally elongated. When the heating head 22 contacts the reflective film strip on the back plate, the first mounting plate 21 continues to descend, the guide column 282 and the heating head 22 are pressed and synchronously rise relative to the first mounting plate 21, the first spring 281 is pressed and shrinks, and the heating head 22 elastically presses the reflective film strip onto the back plate, finally ensuring that all the heating heads 22 can contact the reflective film strip.

[0069] The suction cup 30 is connected to the first mounting plate 21 in a floating manner, for example, the first mounting plate 21 is provided with a mounting hole for accommodating the suction cup 30, and the suction cup 30 is arranged in the mounting hole. In a natural state, the suction end of the suction cup 30 extends downward beyond the mounting hole. When the suction end of the suction cup 30 is pressed, it is retracted upward into the mounting hole. Of course, the suction cup 30 can also be connected to the mounting frame in a floating manner, for example, the first mounting plate 21 is provided with an avoiding hole or an avoiding gap corresponding to the position of the suction cup 30 for avoiding the suction cup 30, and in a natural state, the suction end of the suction cup 30 extends downward beyond the avoiding hole or the avoiding gap. When the suction end of the suction cup 30 is pressed, it is retracted upward into the avoiding hole or the avoiding gap. Connecting the suction cup 30 to the mounting frame 10 can reduce the thermal influence of the first mounting plate 21 on the suction cup 30.

[0070] As shown in Figures 2 to 4As shown, in order to facilitate the preparation and installation of the first mounting plate 21, optionally, the first mounting plate 21 is provided in two sections along the first direction, the suction cups 30 on the two sections of the first mounting plate 21 cooperate to pick up and carry a reflective film strip, and the heating heads 22 on the two sections of the first mounting plate 21 cooperate to heat a reflective film strip. Of course, the first mounting plate 21 can also be a complete mounting plate.

[0071] As shown, optionally, the first mounting plate 21 is provided with a first heating assembly 23, and the first mounting plate 21 uniformly heats each heating head 22 through the first heating assembly 23, thereby improving the heating uniformity of each heating head 22 on different positions of the reflective film strip. Figures 4 to 5

[0072] Of course, each heating head 22 can also be provided with a first heating assembly. In this way, independent temperature control of each heating head 22 can be achieved to meet the heating requirements of different positions of the reflective film strip and improve the heating effect of the reflective film strip. For example, the temperature of the heating heads 22 at both ends of the first mounting plate 21 can be higher than that of the other heating heads 22, so that the two ends of the reflective film strip can be more firmly bonded to the back plate.

[0073] The first heating assembly 23 can be, for example, a heating rod inserted into the first mounting plate 21 or the heating head 22. Of course, the first heating assembly 23 can also include a thermocouple for temperature detection.

[0074] Optionally, after the first reflective film strip 200 is laid on the back plate 100, the film strip carrying mechanism 1 in the embodiment of the present application can be used to lay the second reflective film strip 300 on the back plate 100. As shown, Figure 1 When each second reflective film strip 300 is laid on the back plate 100, it perpendicularly intersects with each first reflective film strip 200 on the back plate 100, resulting in a plurality of intersection points.

[0075] In order to enable the film strip carrying mechanism 1 to simultaneously heat the second reflective film strip 300 and the first reflective film strip 200, the setting position of the heating head 22 on the film strip carrying mechanism 1 can be selected so that each heating head 22 corresponds to one intersection point on the second reflective film strip 300.

[0076] However, the thickness of the intersection point between the second reflective film strip 300 and the first reflective film strip 200 is greater than that of other positions of the first reflective film strip 200. If the bottom surface of the heating head 33 is a flat surface, when the heating head 33 presses the second reflective film strip 300 onto the back plate 100, the bottom surface of the heating head 22 will be blocked by each intersection point on the second reflective film strip 300, causing the heating head 22 to only heat the intersection point position and unable to heat the remaining positions of the second reflective film strip 300, thereby affecting the film pasting effect. ​

[0077] like Figure 1 As shown, the second reflective film strips 300 at different locations are laid on the back panel 100, and the specific details of their intersections with the first reflective film strip 200 are as follows:

[0078] The ends of the second reflective film strips 300, which are laid on both sides of the back panel 100, form right-angle intersection points E with the first reflective film strips 200. The middle portions of the second reflective film strips 300, which are laid on both sides of the back panel 100, form several T-shaped intersection points F with the first reflective film strips 200. Furthermore, the portions laid on the first side (such as...) Figure 1 The orientation of the intersection point on the second reflective film strip 300 at position I on the upper side is the same as that of the strip laid on the second side (e.g., ...). Figure 1 The intersection point on the second reflective film strip 300 at the lower L position is oriented in the opposite direction, or in other words, the intersection point on the second reflective film strip 300 laid on the second side position is mirror-symmetrical with respect to the central axis of the back panel 100 along the length direction with respect to the intersection point on the second reflective film strip 300 laid on the first side position.

[0079] The end of the second reflective film strip 300, which is laid in the middle of the back panel 100, forms a T-shaped intersection F with the first reflective film strip 200, while the middle of the second reflective film strip 300, which is laid in the middle of the back panel 100, forms several cross-shaped intersections G with the first reflective film strip 200. It should be noted that the middle of the back panel 100 refers to any position other than the two sides, not specifically the center of the back panel 100. Similarly, the middle of the second reflective film strip 300 refers to any position other than the two ends, not specifically the center of the second reflective film strip 300.

[0080] like Figure 3 As shown, in one optional embodiment, among the plurality of heating heads 22 of the heating assembly 20, the heating head 22 near the first end (e.g., the left end) of the first mounting plate 21 has an L-shaped bottom surface that faces the outside of the mounting plate 21 and opens at the first end; the heating head 22 near the second end (e.g., the right end) of the first mounting plate 21 has an L-shaped bottom surface that faces the outside of the first mounting plate 21 and opens at the second end; and the remaining heating heads 22 all have a U-shaped bottom surface that opens towards the outside of the first mounting plate 21.

[0081] By configuring the bottom surfaces of the heating heads 22 of the heating assembly 20 as described above, each heating head 22 of the film strip transport mechanism 1 can avoid the intersection at its corresponding position, allowing the second reflective film strip 300 and the first reflective film strip 200 located on both sides of the back plate to be simultaneously attached to the back plate 100, ensuring that the second reflective film strip 300 and the first reflective film strip 200 can be firmly bonded to the back plate 100. Specifically:

[0082] The bottom surface of the heating head 22 near the first end of the mounting plate 21 can avoid the right-angle intersection point E of the first end of the second reflective film strip 300. In addition, the heating head 22 can press the second reflective film strip 300 and the first reflective film strip 200 around the right-angle intersection point E, and simultaneously heat the second reflective film strip 300 and the first reflective film strip 200 around the right-angle intersection point E.

[0083] Similarly, the bottom surface of the heating head 22 near the second end of the mounting plate 21 can avoid the right-angle intersection point E of the second end of the second reflective film strip 300. In addition, the heating head 22 can press the second reflective film strip 300 and the first reflective film strip 200 around the right-angle intersection point E, and simultaneously heat the second reflective film strip 300 and the first reflective film strip 200 around the right-angle intersection point E.

[0084] The bottom surfaces of the remaining heating heads 22 can avoid the corresponding T-shaped intersection F on the second reflective film strip 300. In addition, it can be ensured that each of the remaining heating heads 22 can press the second reflective film strip 300 and the first reflective film strip 200 around the corresponding T-shaped intersection F, and simultaneously heat the second reflective film strip 300 and the first reflective film strip 200 around the T-shaped intersection.

[0085] like Figure 7 As shown, in another optional embodiment, among the plurality of heating heads 22 of the heating assembly 20, the heating head near the first end (e.g., the left end) of the first mounting plate 21 has a U-shaped bottom surface that opens toward the first end of the first mounting plate 21, the heating head 22 near the second end (e.g., the right end, not shown in the figure) of the first mounting plate 21 has a U-shaped bottom surface that opens toward the second end of the first mounting plate 21, and the remaining heating heads 22 all have annular bottom surfaces.

[0086] By configuring the bottom surfaces of the heating heads 22 of the heating assembly 20 as described above, the heating heads 23 of the film strip transport mechanism 1 can avoid the intersections at corresponding positions, allowing the second reflective film strip 300 and the first reflective film strip 200 located at the center of the back plate 100 to be attached to the back plate 100, and ensuring that the second reflective film strip 300 and the first reflective film strip 200 can be firmly bonded to the back plate 100. Specifically:

[0087] The bottom surface of the heating head 22 near the first end of the first mounting plate 21 can avoid the T-shaped intersection F of the first end of the second reflective film strip 300. In addition, the heating head 22 can press the second reflective film strip 300 and the first reflective film strip 200 around the T-shaped intersection F, and simultaneously heat the second reflective film strip 300 and the first reflective film strip 200 around the T-shaped intersection F.

[0088] Similarly, the bottom surface of the heating head 22 near the second end of the first mounting plate 21 can avoid the T-shaped intersection F of the second end of the second reflective film strip 300. In addition, the heating head 22 can press the second reflective film strip 300 and the first reflective film strip 200 around the T-shaped intersection F and simultaneously heat the second reflective film strip 300 and the first reflective film strip 200 around the T-shaped intersection.

[0089] The bottom surface of the remaining heating heads 22 can avoid the corresponding cross-shaped intersection G on the second reflective film strip 300. In addition, it can be ensured that the remaining heating heads 22 can press the second reflective film strip 300 and the first reflective film strip 200 around the corresponding cross-shaped intersection G and simultaneously heat the second reflective film strip 300 and the first reflective film strip 200 around the cross-shaped intersection G.

[0090] As shown in Figures 4 to 6 and Figures 8 to 9 Optionally, the first heating needle 24 is arranged on the heating head 22 near the first end of the first mounting plate 21 and the heating head 22 near the second end of the first mounting plate 21 among the plurality of heating heads 22 of the heating assembly 20. The first heating needle 24 is connected to the heating head 22 in a floating manner up and down and avoids the bottom surface of the heating head 22. The first heating needle 24 is used to heat the end of the film strip.

[0091] By arranging the first heating needle 24 on the heating head 22 at the position of the two ends of the first mounting plate 21, when the reflective film strip is pressed and bonded to the back plate by the heating head 22 of the film strip conveying mechanism 1, the first heating needle 24 at the two ends can press and heat the intersection position of the two ends of the reflective film strip, so that the two ends of the reflective film strip can be bonded to the back plate.

[0092] As shown in Figures 8 to 9 Optionally, the first heating needle 24 is installed on the heating head 22 in a floating manner up and down through the second buffer connecting piece 29. The first heating needle 24 includes a needle rod 241 and a pressing head 242, and the second buffer connecting piece 29 includes a second limiting sleeve 292 and a second spring 291, wherein the needle rod 241 is inserted through the heating head 22 and can move up and down along the heating head 22, and the upper end of the needle rod 241 is fixedly connected to the second limiting sleeve 292 after passing through the heating head 22. The second spring 291 is sleeved on the needle rod, the upper end of the second spring 291 abuts against the heating head 22, and the lower end of the second spring 291 abuts against the pressing head 242.

[0093] In its natural state, the first heating needle 24 extends downwards from the heating head 22, and the second spring 291 extends naturally. When the pressure head 242 of the first heating needle 24 contacts the reflective film strip, and the heating head 22 continues to descend, the first heating needle 24 is pressed and rises relative to the heating head 22. The second spring 291 is compressed and contracts, so that the pressure head 242 of the first heating needle 24 elastically presses against the end of the reflective film strip, ensuring that the first heating needle 24 presses firmly against the end of the reflective film strip while avoiding damage to the back panel.

[0094] like Figures 10 to 11 As shown, in the second optional embodiment, the heating assembly 20 includes a second mounting plate 25, which is connected to the mounting bracket 10, and the bottom surface of the second mounting plate 25 forms a heating surface.

[0095] When several suction cups 30 press the reflective film strip down onto the back plate 100, and when several suction cups 30 float up under pressure, the bottom surface of the second mounting plate 25 can press tightly against the reflective film strip and heat the reflective film strip, thereby bonding the reflective film strip to the back plate.

[0096] The suction cup 30 can be connected to the second mounting plate 25 in a floating manner. For example, the second mounting plate 25 is provided with a mounting hole for accommodating the suction cup 30, and the suction cup 30 is disposed within the mounting hole. In its natural state, the suction end of the suction cup 30 extends downward out of the mounting hole. When the suction end of the suction cup 30 is pressed, it retracts upward into the mounting hole. Alternatively, the suction cup 30 can also be connected to the mounting bracket 10 in a floating manner. For example, the second mounting plate 25 is provided with a clearance hole or clearance gap at a position corresponding to the suction cup 30, and the suction end of the suction cup 30 retracts upward into the clearance hole or clearance gap when pressed. Connecting the suction cup 30 to the mounting bracket 10 can reduce the thermal impact of the second mounting plate 25 on the suction cup 30.

[0097] To facilitate the preparation and installation of the second mounting plate 25, optionally, the second mounting plate 25 is configured as two segments along the first direction. The suction cups 30 on the two segments of the second mounting plate 25 cooperate to pick up and transport the reflective film strip, and the heating heads 22 on the two segments of the second mounting plate 25 cooperate to heat the reflective film strip. Of course, the second mounting plate 25 can also be a single, complete mounting plate.

[0098] Optionally, a second heating element is provided within the second mounting plate 25. The second heating element uniformly heats the reflective film strip via the second mounting plate 25. The second heating element is, for example, a heating rod inserted into the second mounting plate 25. Alternatively, the second heating element may also include a thermocouple for temperature detection.

[0099] As described above, when the film strip carrying mechanism 1 in the embodiment of the present application is used to lay the second reflective film strip 300 on the backboard 100, each second reflective film strip 300 perpendicularly intersects with the first reflective film strip 200, and a plurality of intersection points are generated. The thickness of the intersection point between the second reflective film strip 300 and the first reflective film strip 200 is greater than the thickness of other positions of the first reflective film strip 200.

[0100] If the bottom surface of the second mounting plate 25 is a plane, when the second mounting plate 25 presses the second reflective film strip 300 onto the backboard 100, the bottom surface of the second mounting plate 25 is blocked by the intersection points on the second reflective film strip 300, so that the second mounting plate 25 can only heat the intersection points, and cannot heat the remaining positions of the second reflective film strip 300, thereby affecting the film pasting effect.

[0101] As described above, the shapes and orientations of the intersection points between the second reflective film strip 300 laid at the first side position of the backboard 100, the second reflective film strip 300 laid at the second side position of the backboard 100, and the second reflective film strip 300 laid in the middle of the backboard 100 and the first reflective film strip 200 are different. For brevity of description, the specific conditions of the intersection points between the second reflective film strip 300 laid at different positions and the first reflective film strip 200 are not described here again, and please refer to the related description in the foregoing.

[0102] In an optional embodiment, as shown in Figure 13 the bottom surface of the second mounting plate 25 is provided with a plurality of avoiding grooves 26 spaced apart along the first direction, wherein: the avoiding grooves 26 near the first end (for example, the left end) of the second mounting plate 25 are L-shaped grooves, and open towards the outside and the first end of the second mounting plate 25. The avoiding grooves near the second end (for example, the right end, not shown in the figure) of the second mounting plate 25 are L-shaped grooves, and open towards the outside and the second end of the second mounting plate 25. The remaining avoiding grooves are U-shaped grooves, and open towards the outside of the second mounting plate 25.

[0103] By designing a plurality of avoiding grooves 26 on the bottom surface of the second mounting plate 25 and setting the shapes of the avoiding grooves 26, the film strip carrying mechanism 1 can simultaneously paste the second reflective film strip 300 and the first reflective film strip 200 to the two side positions of the backboard 100, and ensure that the second reflective film strip 300 and the first reflective film strip 200 can be firmly bonded to the backboard 100. Specifically:

[0104] The avoiding grooves 26 near the first end (for example, the left end) of the second mounting plate 25 avoid the right-angle intersection point E of the first end of the second reflective film strip 300, so that the first end of the second mounting plate 25 can press the second reflective film strip 300 and the first reflective film strip 200 around the right-angle intersection point E, and simultaneously heat the second reflective film strip 300 and the first reflective film strip 200 around the right-angle intersection point E.

[0105] The clearance groove 26 near the second end (e.g., the right end) of the second mounting plate 25 can avoid the right angle intersection point E of the second end of the second reflective film strip 300, thereby enabling the second end of the second mounting plate 25 to press the second reflective film strip 300 and the first reflective film strip 200 around the right angle intersection point E, and to simultaneously heat the second reflective film strip 300 and the first reflective film strip 200 around the right angle intersection point E.

[0106] The remaining clearance grooves 26 on the second mounting plate 25 can correspondingly avoid each T-shaped intersection F on the second reflective film strip 300, thereby enabling the second mounting plate 25 to press the second reflective film strip 300 and the first reflective film strip 200 around each T-shaped intersection F, and to simultaneously heat the second reflective film strip 300 and the first reflective film strip 200 around each T-shaped intersection F.

[0107] In another alternative embodiment, such as Figure 11 As shown, a plurality of clearance grooves 26 are provided at intervals along a first direction on the bottom surface of the second mounting plate 25. The clearance grooves 26 near the first end (e.g., the left end) of the second mounting plate 25 are U-shaped and open towards the first end of the second mounting plate 25. The clearance grooves 26 near the second end (e.g., the right end) of the second mounting plate 25 are U-shaped and open towards the second end of the second mounting plate 25. The remaining clearance grooves 26 are rectangular or circular closed grooves.

[0108] By designing several clearance grooves 26 on the bottom surface of the second mounting plate 25 and setting the shape of the clearance grooves 26, the film strip conveying mechanism 1 can attach the second reflective film strip 300 and the first reflective film strip 200 to the middle of the back plate 100, and ensure that the second reflective film strip 300 and the first reflective film strip 200 can be firmly bonded to the back plate 100. Specifically:

[0109] The clearance groove 26 near the first end (e.g., the left end) of the second mounting plate 25 can avoid the T-shaped intersection F of the first end of the second reflective film strip 300, thereby enabling the first end of the second mounting plate 25 to press the second reflective film strip 300 and the first reflective film strip 200 around the T-shaped intersection F, and to simultaneously heat the second reflective film strip 300 and the first reflective film strip 200 around the T-shaped intersection F.

[0110] The clearance groove 26 near the second end (e.g., the right end) of the second mounting plate 25 can avoid the T-shaped intersection F of the second end of the second reflective film strip 300, thereby enabling the second end of the second mounting plate 25 to press the second reflective film strip 300 and the first reflective film strip 200 around the T-shaped intersection F, and to simultaneously heat the second reflective film strip 300 and the first reflective film strip 200 around the T-shaped intersection F.

[0111] The rest of the avoiding grooves 26 on the second mounting plate 25 can avoid each cross-shaped intersection G on the second reflective film strip 300 one by one, so that the second mounting plate 25 can press the second reflective film strip 300 and the first reflective film strip 200 around each cross-shaped intersection G and simultaneously heat the second reflective film strip 300 and the first reflective film strip 200 around each cross-shaped intersection G.

[0112] As shown in Figures 11 to 13 Optionally, the avoiding groove 26 near the first end of the second mounting plate 25 and the avoiding groove 26 near the second end of the second mounting plate 25 are both provided with a second heating needle 27, which is connected to the second mounting plate 25 in a floating manner and is used for heating the end of the reflective film strip.

[0113] By providing the second heating needle 27 in the avoiding groove at the position of the two ends of the second mounting plate 25, the second heating needle 27 at the two ends can press and heat the intersection positions of the two ends of the reflective film strip when the second mounting plate 25 is used to bond the reflective film strip to the back plate, so that the two ends of the reflective film strip can be firmly bonded to the back plate.

[0114] As shown in Figures 11 to 12 Optionally, the second heating needle 27 is connected to the second mounting plate 25 in a floating manner through a third buffer connecting piece 210. Optionally, the third buffer connecting piece 210 includes a third spring 211. The second mounting plate 25 is provided with a mounting hole corresponding to the position of the second heating needle 27. The second heating needle 27 is inserted into the mounting hole, and the second heating needle 27 is further provided with a limiting portion 271 protruding outward, and the mounting hole is provided with a limiting step 251 matched with the limiting portion. The third spring 211 is sleeved on the second heating needle 27 and located in the mounting hole, the upper end of the third spring 211 abuts against the second mounting plate 25, and the lower end of the third spring 211 abuts against the limiting portion 271.

[0115] The second heating needle 27 naturally extends downward from the second mounting plate 25, and the third spring 211 naturally extends. When the third spring 211 contacts the reflective film strip and the second mounting plate 25 continues to descend, the second heating needle 27 is pressed to rise relative to the second mounting plate 25, and the third spring 211 is pressed to contract, so that the second heating needle 27 can elastically press the end of the reflective film strip against the back plate.

[0116] As shown in Figure 14As shown, the film strip carrying device further comprises a driving mechanism 2 and a plurality of film strip carrying mechanisms 1. The plurality of film strip carrying mechanisms 1 are connected to the moving part of the driving mechanism 2 along the second direction (e.g. Y direction) and are driven by the driving mechanism 2 to move synchronously. Each of the film strip carrying mechanisms 1 is used to carry and heat a reflective film strip extending along the first direction. The second direction is perpendicular to the first direction. In the film strip carrying device, the plurality of film strip carrying mechanisms 1 are driven by the driving mechanism 2 to carry and bond a plurality of reflective film strips to the back plate synchronously, thereby improving the efficiency of the film strip carrying device.

[0117] Optionally, the driving mechanism 2 comprises a moving part 201 and a distance adjusting part 202. The distance adjusting part 202 is connected to the moving part 201, and the plurality of film strip carrying mechanisms 1 are connected to the distance adjusting part 202 along the second direction. The moving part 201 is used to drive the plurality of film strip carrying mechanisms 1 to move synchronously. The distance adjusting part 202 is used to adjust the distance between the plurality of film strip carrying mechanisms 1.

[0118] By setting the driving mechanism 2 to comprise the moving part 201 and the distance adjusting part 202, on the one hand, the driving mechanism 2 can drive the film strip carrying mechanisms 1 to move, so that the film strip carrying mechanisms 1 can carry and bond the reflective film strips to the back plate. On the other hand, the distance adjusting part 202 can adjust the distance between the reflective film strips during the carrying process, so that the distance between the reflective film strips matches the size of the battery string group, thereby improving the compatibility of the film strip carrying device.

[0119] The moving part 201 can be any existing moving device capable of driving the film strip carrying mechanisms 1 to move horizontally and vertically. For example, the moving part 201 comprises a horizontal driving module and a vertical driving module. The horizontal driving module is used to drive the film strip carrying mechanisms 1 to move horizontally, and the vertical driving module is used to drive the film strip carrying mechanisms 1 to move vertically.

[0120] The distance adjusting part 202 can be any existing distance adjusting driving mechanism capable of adjusting the distance between the film strip carrying mechanisms 1. For example, the distance adjusting part 202 comprises a plurality of linear driving devices (e.g. air cylinders, screw modules, etc.) corresponding to the film strip carrying mechanisms 1. Each linear driving device drives the film strip carrying mechanisms 1 to move horizontally along the second direction, thereby adjusting the distance between the film strip carrying mechanisms 1.

[0121] A sufficiently detailed description of the present application has been given above with a certain particularity. One skilled 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 belong to the protection scope of the present application. The scope of protection claimed by the present application is defined by the claims described, not by the above description in the embodiments.

Claims

1. A membrane strip transport mechanism, characterized in that, In a device for attaching reflective film strips to the backsheet of photovoltaic modules, the film strip transport mechanism includes a mounting frame, a heating component, and several suction cups, wherein: The heating component is disposed on the mounting bracket along the first direction, and the bottom of the heating component has a heating surface; A plurality of suction cups are spaced apart on the heating component or the mounting bracket along the first direction, and each suction cup can float up and down relative to the heating component; The suction ends of several of the suction cups extend downwards from the heating surface in their natural state to cooperate in adsorbing the reflective film strip extending along the first direction; After being pressed, the suction cups float upwards, and the heating surface of the heating component is flush with the adsorption ends of the suction cups. The heating component heats the reflective film strip adsorbed by the suction cups through the heating surface.

2. The membrane strip transport mechanism as described in claim 1, characterized in that, The heating assembly includes a first mounting plate and a plurality of heating heads, wherein: The first mounting plate is connected to the mounting bracket, and a plurality of heating heads are spaced apart on the first mounting plate along the first direction, and each heating head can be connected to the first mounting plate by floating up and down; The bottom surfaces of several heating heads together constitute the heating surface, and each heating head and each suction cup are arranged collinearly, with the heating head and the suction cup being spaced apart.

3. The membrane strip transport mechanism as described in claim 2, characterized in that, The first mounting plate is provided with a first heating component, and the first mounting plate heats each of the heating heads through the first heating component; or, each of the heating heads is provided with a first heating component.

4. The membrane strip transport mechanism as described in claim 2, characterized in that: Of the plurality of heating heads in the heating assembly, the heating head near the first end of the first mounting plate has an L-shaped bottom surface that faces outward from the mounting plate and opens at the first end; the heating head near the second end of the first mounting plate has an L-shaped bottom surface that faces outward from the first mounting plate and opens at the second end; the remaining heating heads all have a U-shaped bottom surface that opens outward from the first mounting plate; or, Of the plurality of heating heads in the heating assembly, the heating head near the first end of the first mounting plate has a U-shaped bottom surface that opens toward the first end of the first mounting plate, the heating head near the second end of the first mounting plate has a U-shaped bottom surface that opens toward the second end of the first mounting plate, and the remaining heating heads all have annular bottom surfaces.

5. The membrane strip transport mechanism as described in claim 4, characterized in that: In the heating assembly, a first heating pin is provided on the heating head near the first end of the first mounting plate and the heating head near the second end of the first mounting plate. The first heating pin is connected to the heating head in a floating manner and avoids the bottom surface of the heating head. The first heating needle is used to heat the end of the film strip.

6. The membrane strip transport mechanism as described in claim 1, characterized in that, The heating assembly includes a second mounting plate, which is connected to the mounting bracket, and the bottom surface of the second mounting plate forms the heating surface.

7. The membrane strip transport mechanism as described in claim 6, characterized in that, The second mounting plate contains a second heating element.

8. The membrane strip transport mechanism as described in claim 6, characterized in that, The bottom surface of the second mounting plate is provided with a plurality of clearance grooves spaced apart along the first direction, wherein: The clearance groove near the first end of the second mounting plate is L-shaped and opens towards the outside of the second mounting plate and the first end; the clearance groove near the second end of the second mounting plate is L-shaped and opens towards the outside of the second mounting plate and the second end; the remaining clearance grooves are all U-shaped and open towards the outside of the second mounting plate; or, The clearance groove near the first end of the second mounting plate is a U-shaped groove and is open towards the first end of the second mounting plate; the clearance groove near the second end of the second mounting plate is a U-shaped groove and is open towards the second end of the second mounting plate; the remaining clearance grooves are all rectangular or circular closed grooves.

9. The membrane strip transport mechanism as described in claim 8, characterized in that, A second heating pin is provided in both the clearance groove near the first end of the second mounting plate and the clearance groove near the second end of the second mounting plate. The second heating pin is connected to the second mounting plate in a floating manner and is used to heat the end of the membrane strip.

10. A membrane strip transport device, characterized in that, The film strip transport device includes a drive mechanism and a plurality of film strip transport mechanisms as described in any one of claims 1 to 9, wherein: Several of the membrane strip transport mechanisms are spaced apart along a second direction and connected to the movable part of the drive mechanism, the drive mechanism being used to drive the several membrane strip transport mechanisms to move synchronously. Each of the aforementioned film strip transport mechanisms is used to transport and heat a reflective film strip extending along the first direction; The second direction is perpendicular to the first direction.

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