Solder strip fixing device

Abstract

The utility model provides a welding strip fixing device. The welding strip fixing device comprises a bearing mechanism, a pressing mechanism and a curing mechanism. The bearing mechanism comprises a bearing platform and a driving mechanism, a photovoltaic cell string is placed on the bearing platform, the photovoltaic cell string comprises a plurality of cell pieces arranged in the same direction, and the driving mechanism drives the bearing platform to move in the conveying direction of the photovoltaic cell string; the downward pressing mechanism comprises a downward pressing part located above the bearing platform and a first lifting mechanism for driving the downward pressing part to move up and down, and the downward pressing part is provided with a plurality of first hollow parts; when the battery piece is conveyed to the position below the pressing part, the first lifting mechanism drives the pressing part to press downwards so that the welding strip can be tightly pressed on the main grid of the battery piece, all the gluing points on the main grid of the battery piece can be exposed through the first hollow-out part, the gluing points are solidified through the solidifying mechanism, and therefore the effect that the welding strip adheres to the main grid is effectively improved, and the service life of the welding strip is prolonged. Therefore, the effect of placing the welding strip on the main grid is better, and the welding strip can be welded on the main grid subsequently.

Description

Technical Field

[0001] The present application belongs to the technical field of photovoltaic module production, and specifically, relates to a welding ribbon fixing device. Background Art

[0002] Two adjacent cells in a photovoltaic module are connected in series by welding ribbons to achieve electrical connection. The existing series connection of cells requires the use of UV glue to fix the welding ribbon on the cell. Specifically, UV glue is first applied on the main grid of the cell by dispensing to form glue points, and then the welding ribbon is placed on the main grid of the cell. UV light is used to cure the UV glue, so as to achieve adhesion between the welding ribbon and the cell. After that, the welding ribbon and the main grid of the cell are welded together by lamination or laser irradiation to generate electrical connection.

[0003] During the UV lamp curing process, the UV lamp is fixed and the cells are transferred under the UV lamp to cure the UV glue on the cells. Since the soldering tape is only placed on the main grid coated with UV glue, the adhesion between the soldering tape and the main grid is not very good after the UV glue is cured, which affects the subsequent soldering of the soldering tape on the main grid, resulting in poor electrical connection between the cells. Utility Model Content

[0004] In view of this, the present application provides a solder strip fixing device, which presses the solder strip onto the grid line of the battery cell through a pressing mechanism, and then cures the UV glue to improve the adhesion effect between the solder strip and the grid line.

[0005] A welding strip fixing device comprises a bearing mechanism, a pressing mechanism and a curing mechanism;

[0006] The carrying mechanism includes a carrying platform and a driving mechanism, a photovoltaic cell string is placed on the carrying platform, the photovoltaic cell string includes a plurality of cells arranged in the same direction, and the driving mechanism drives the carrying platform to move along the transmission direction of the photovoltaic cell string;

[0007] The pressing mechanism comprises a pressing component located above the carrying platform and a first lifting mechanism driving the pressing component to move up and down, the pressing component has a plurality of first hollow parts, and each main grid of the battery cell is provided with at least one glue point;

[0008] When the battery cell is transferred to the bottom of the pressing component, the first lifting mechanism drives the pressing component to press down on the soldering tape, so that the soldering tape is pressed tightly against the main grid of the battery cell. All the glue points on the main grid of the battery cell can be exposed through the first hollow portion, so that the curing mechanism can cure all the glue points on the battery cell.

[0009] Preferably, two first lifting mechanisms are provided, and along the conveying direction of the photovoltaic cell string, the two first lifting mechanisms are respectively arranged on both sides of the carrying platform;

[0010] One end of the pressing component is installed on one of the first lifting mechanisms, and the other end of the pressing component is installed on the other of the first lifting mechanisms.

[0011] Preferably, each of the first lifting mechanisms comprises a first driving mechanism and a mounting plate, and a power output end of the first driving mechanism is connected to the corresponding mounting plate.

[0012] Preferably, the pressing component comprises a pressing plate and a buffer unit, wherein the buffer unit is arranged on a side of the pressing plate close to the battery cell, one end of the pressing plate is mounted on one of the mounting plates, and the other end of the pressing plate is mounted on the other mounting plate;

[0013] During the curing process of the battery cell, the buffer unit is pressed on the soldering tape.

[0014] Preferably, the buffer unit is provided in plurality, and the plurality of cells in the photovoltaic cell string are arranged in a direction perpendicular to the conveying direction of the photovoltaic cell string, and the plurality of buffer units are arranged on the lower pressure plate along the arrangement direction of the cells in the photovoltaic cell string, and each of the buffer units is provided corresponding to a cell in at least one of the photovoltaic cell strings.

[0015] Preferably, the first hollow portion is arranged on the lower pressing plate, and the first hollow portion extends along the arrangement direction of the battery cells in the photovoltaic battery string;

[0016] In the arrangement direction of the cells in the photovoltaic cell string, the lower pressing plate is provided with a plurality of columns of the first hollow portions, and each column has a plurality of the first hollow portions;

[0017] When the buffer unit is pressed on the welding strip, the first hollow portion of each column can expose all the glue points on two adjacent battery cells in at least one photovoltaic battery string;

[0018] Two buffer units are correspondingly arranged in each column of the first hollowed-out portion. When the buffer unit is pressed on the welding strip, each buffer unit is staggered with the gluing point of the battery cell.

[0019] Preferably, along the arrangement direction of the cells in the photovoltaic cell string, a second hollow portion is provided in the middle of the lower pressing plate;

[0020] An extension direction of the first hollow portion is consistent with an extension direction of the second hollow portion, and the second hollow portion is located between two adjacent first hollow portions.

[0021] Preferably, each of the buffer units comprises a floating pressure plate and a plurality of floating members, one end of each of the floating members is connected to the lower pressure plate, and the other end of each of the floating members is connected to the floating pressure plate.

[0022] Preferably, the floating pressure plate comprises a plurality of mutually parallel first floating plates and a plurality of mutually parallel second floating plates, the first floating plates are all arranged and extended along the arrangement direction of the cells in the photovoltaic cell string, and the second floating plates are all arranged and extended along the transmission direction of the photovoltaic cell string;

[0023] The first hollow portion of each column is penetrated by the second floating plate of the two floating pressure plates;

[0024] When the buffer unit is pressed down onto the welding strip, the second floating plate and the gluing points of the battery cell are staggered.

[0025] Preferably, along the arrangement direction of the cells in the photovoltaic cell string, the first floating plates are distributed on both sides of the bottom of the lower pressing plate and between the first hollow portion and the second hollow portion;

[0026] Both ends of each second floating plate are respectively connected to the first floating plates distributed on both sides of the bottom of the lower pressing plate, and the middle part of each second floating plate is connected to the first floating plate distributed between the first hollow part and the second hollow part.

[0027] Preferably, along the arrangement direction of the cells in the photovoltaic cell string, the floating members are distributed on both sides of the bottom of the lower pressing plate and are connected to the first floating plate.

[0028] Preferably, each of the floating members includes two sleeves, a connecting shaft and a spring, the two sleeves are respectively arranged at the bottom of the lower pressure plate and the top of the first floating plate, the two ends of the connecting shaft are respectively installed in the two sleeves, and the spring is sleeved on the connecting shaft.

[0029] Preferably, the curing mechanism comprises a second lifting mechanism and a curing light, and the curing light is located above the pressing component;

[0030] There are two second lifting mechanisms, each of which is arranged corresponding to each of the first lifting mechanisms, and the second lifting mechanisms drive the curing lamp and the first lifting mechanisms to move up and down.

[0031] Preferably, each of the second lifting mechanisms comprises a second driving mechanism and a connecting plate, the power output end of each of the second driving mechanisms is connected to the corresponding connecting plate, the second driving mechanism drives the corresponding connecting plate to move up and down, one end of the curing light is mounted on one of the connecting plates, and the other end of the curing light is mounted on the other connecting plate;

[0032] The mounting plate is located below the connecting plate, the first driving mechanism is mounted on the connecting plate, and the power output end of the first driving mechanism passes through the connecting plate and is connected to the mounting plate.

[0033] Preferably, along the conveying direction of the photovoltaic cell string, both sides of the carrying platform are provided with a busbar avoidance mechanism;

[0034] Each of the busbar avoidance mechanisms comprises a third driving mechanism and a support plate, wherein the support plate is mounted on the third driving mechanism, the second driving mechanism is mounted on the corresponding support plate, and the third driving mechanism drives the support plate to move along the transmission direction of the photovoltaic cell string.

[0035] Preferably, a plurality of floating pins are provided on a side of the lower pressing plate close to the battery cell.

[0036] Preferably, four floating pins are provided, and two floating pins are provided on both sides of the lower pressing plate respectively along the conveying direction of the photovoltaic cell string.

[0037] The beneficial effects of this application are:

[0038] 1. During the UV glue curing process, the soldering tape is pressed tightly onto the main grid of the battery cell by the pressing component, and the glue points on the battery cell are exposed through the first hollow part on the pressing component, and then the exposed glue points are cured by the curing mechanism, which can effectively improve the effect of the soldering tape adhering to the main grid, so that the effect of placing the soldering tape on the main grid is better, which is conducive to the subsequent welding of the soldering tape on the main grid;

[0039] 2. Before curing, the first lifting mechanism drives the lower pressing plate to press the solder strip. The buffer unit provided on the lower pressing plate can effectively prevent the battery cell from being damaged by hidden cracks, scratches, etc. during the curing process;

[0040] 3. When the busbar is transferred to the bottom of the pressing component, the second lifting mechanism can drive the first lifting mechanism and the curing lamp to move upward at the same time to avoid the busbar;

[0041] 4. When encountering the busbar during the curing process, the position of the battery cell will be offset in the conveying direction of the photovoltaic battery string. The first lifting mechanism and the second lifting mechanism can be moved along the offset direction of the photovoltaic battery string through the busbar avoidance mechanism to prevent the position from deviating when the pressing component is pressed down on the battery cell and when the curing light irradiates the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0043] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which this application can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by this application, should still fall within the scope of the technical contents disclosed in this application.

[0044] Figure 1 A schematic diagram of the structure of the welding strip fixing device provided in this application;

[0045] Figure 2 It is a schematic diagram of the structure of the first lifting mechanism, the second lifting mechanism and the converging strip avoiding mechanism;

[0046] Figure 3 is a three-dimensional diagram of the pressing component;

[0047] Figure 4 for Figure 3 A partial enlarged view of the A part;

[0048] Figure 5 A bottom view of the pressing component;

[0049] Figure 6 This is the front view of the pressing part.

[0050] In the figure: 1-pressing component; 11-pressing plate; 12-buffering unit; 121-floating pressing plate; 1211-first floating plate; 1212-second floating plate; 122-floating member; 2-first lifting mechanism; 21-first driving mechanism; 22-mounting plate; 3-first hollow portion; 4-second lifting mechanism; 41-second driving mechanism; 42-connecting plate; 5-converging belt avoiding mechanism; 51-third driving mechanism; 52-supporting plate; 6-floating pin; 7-second hollow portion; 8-base. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the embodiments in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0052] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0053] The present application provides a welding strip fixing device, referring to Figure 1-6 , including a bearing mechanism (not shown in the figure), a pressing mechanism and a curing mechanism;

[0054] The carrying mechanism includes a carrying platform and a driving mechanism, a photovoltaic cell string (not shown in the figure) is placed on the carrying platform, the photovoltaic cell string includes a plurality of cells arranged in the same direction, and the driving mechanism drives the carrying platform to move along the transmission direction of the photovoltaic cell string;

[0055] The pressing mechanism comprises a pressing component 1 located above the carrying platform and a first lifting mechanism 2 driving the pressing component 1 to move up and down, the pressing component 1 has a plurality of first hollow parts 3, and each main grid of the battery cell is provided with at least one glue point;

[0056] When the battery cell is transferred to the bottom of the pressing component 1, the first lifting mechanism 2 drives the pressing component 1 to press down on the soldering tape, so that the soldering tape is pressed tightly against the main grid of the battery cell. All the glue points on the main grid of the battery cell can be exposed through the first hollow portion 3, so that the curing mechanism can cure all the glue points on the battery cell.

[0057] The multiple cells in the photovoltaic cell string can be arranged along the transmission direction of the photovoltaic cell string, or can be arranged along a direction perpendicular to the transmission direction of the photovoltaic cell string. In this embodiment, it is preferred to arrange the multiple cells in the photovoltaic cell string along a direction perpendicular to the transmission direction of the photovoltaic cell string.

[0058] It can be understood that the two ends of the pressing component 1 are respectively located on both sides of the supporting platform, so that the length direction of the pressing component 1 is the same as the arrangement direction of the battery cells in the photovoltaic cell string. When a photovoltaic cell string is transferred to the bottom of the pressing component 1, under the action of the first lifting mechanism 2, the pressing component 1 moves downward until the welding strip is pressed against the main grid of the battery cell. During this process, the pressing component 1 can press all the battery cells in at least one photovoltaic cell string, that is, through the pressing component 1, a welding strip can be pressed against each main grid of all the battery cells in at least one photovoltaic cell string.

[0059] Before curing the cell, UV glue is first applied on the main grid of the cell by dispensing glue, so as to form a plurality of glue points on the cell, and then a welding strip is placed on the main grid coated with UV glue, and two adjacent cells are connected in series by the welding strip. In this embodiment, it is preferred to connect the cells in two adjacent photovoltaic cell strings in series by welding strips.

[0060] During the gluing process, at least one gluing point is provided on each main grid, and the specific number of gluing points provided on each main grid shall be determined according to the actual process effect.

[0061] During the curing process of the cell sheet, the carrying platform is driven by the driving mechanism to move along the conveying direction of the photovoltaic cell string. At least one photovoltaic cell string is placed on the carrying platform, so that the photovoltaic cell string continuously passes under the pressing component 1.

[0062] When one or more photovoltaic cell strings are transferred to the bottom of the pressing component 1, the pressing component 1 is driven by the first lifting mechanism 2 to press down on the welding strips of all the cells in the one or more photovoltaic cell strings, so that a welding strip is pressed on each main grid of all the cells in the one or more photovoltaic cell strings. At this time, the first hollow part 3 can expose all the glue points on all the cells in the one or more photovoltaic cell strings, and then the exposed glue points are cured by the curing mechanism. Exposing the glue points through the first hollow part 3 can facilitate the curing mechanism to cure the UV glue at the glue points, so that the welding strip is pressed on the main grid without affecting the curing of the cell, improving the effect of the welding strip sticking to the main grid, making the effect of the welding strip placed on the main grid better, and then improving the effect of the welding strip welding on the main grid.

[0063] After the UV glue on the cell is cured, the first lifting mechanism 2 drives the pressing component 1 to move upward to separate the pressing component 1 from the cell, and then continues to convey the photovoltaic cell string along the conveying direction of the photovoltaic cell string until the photovoltaic cell string to be cured behind the cured photovoltaic cell string is conveyed to the bottom of the pressing component 1, and repeats the above steps until the UV glue on all cell sheets in all photovoltaic cell strings is cured.

[0064] Each photovoltaic module includes multiple photovoltaic cell strings. When the UV glue on all the cells in the multiple photovoltaic cell strings in a photovoltaic module is cured, the carrying platform is moved to cure the cells in the photovoltaic cell string in the next photovoltaic module in the same steps.

[0065] In this embodiment, the pressing component 1 may press the welding strips on all the cells in one photovoltaic cell string onto the corresponding main grid, or the pressing component 1 may press the welding strips on all the cells in two or more photovoltaic cell strings onto the corresponding main grid at the same time. Considering factors such as the curing efficiency and the pressing effect of the pressing component 1, in this embodiment, the pressing component 1 preferably presses the welding strips on all the cells in two photovoltaic cell strings onto the corresponding main grid at the same time, and cures the UV glue on all the cells in the two photovoltaic cell strings at the same time through the curing mechanism.

[0066] Next, the welding strip fixing device of the present application is described in detail by taking the example that the pressing component 1 simultaneously presses the welding strips on all the cells in two photovoltaic cell strings onto the corresponding main grids, and each main grid is provided with two glue points.

[0067] like Figure 1 As shown, two first lifting mechanisms 2 are provided, and along the conveying direction of the photovoltaic cell string, the two first lifting mechanisms 2 are respectively arranged on both sides of the carrying platform;

[0068] One end of the pressing component 1 is installed on one of the first lifting mechanisms 2 , and the other end of the pressing component 1 is installed on the other first lifting mechanism 2 .

[0069] In the present application, the two first lifting mechanisms 2 drive the pressing component 1 to move up and down.

[0070] like Figure 2-3 As shown, each of the first lifting mechanisms 2 includes a first driving mechanism 21 and a mounting plate 22, and a power output end of the first driving mechanism 21 is connected to the corresponding mounting plate 22;

[0071] The pressing component 1 includes a pressing plate 11 and a buffer unit 12, wherein the buffer unit 12 is arranged on a side of the pressing plate 11 close to the battery cell, one end of the pressing plate 11 is mounted on one of the mounting plates 22, and the other end of the pressing plate 11 is mounted on another mounting plate 22;

[0072] During the curing process of the battery cell, the buffer unit 12 is pressed on the soldering ribbon.

[0073] Under the action of the first driving mechanism 21, the mounting plate 22 moves up and down, so that the lower pressing plate 11 whose two ends are respectively mounted on the two mounting plates 22 moves up and down. In the process of the lower pressing plate 11 moving downward, since the buffer unit 12 is arranged on the side of the lower pressing plate 11 close to the battery cell, that is, arranged at the bottom of the lower pressing plate 11, during the curing process, the soldering ribbon is pressed against the corresponding main grid by the buffer unit 12, which can play a buffering role and prevent the battery cell from being damaged when the lower pressing component 1 presses the soldering ribbon against the main grid.

[0074] Specifically, Figure 3 As shown, the buffer unit 12 is provided in plurality, and the plurality of buffer units 12 are arranged on the lower pressure plate 11 along the arrangement direction of the cells in the photovoltaic cell string, and each of the buffer units 12 is arranged corresponding to a cell in at least one photovoltaic cell string.

[0075] In this embodiment, each buffer unit 12 is arranged corresponding to a cell in two photovoltaic cell strings, that is, when the buffer unit 12 is pressed on the welding strip, one buffer unit 12 can press all the welding strips on the two cell cells onto each corresponding main grid. Specifically, one of the two cell cells is a cell cell in one of the photovoltaic cell strings, and the other cell cell is a cell cell in another adjacent photovoltaic cell string.

[0076] Furthermore, the first hollow portion 3 is arranged on the lower pressing plate 11, and the first hollow portion 3 extends along the arrangement direction of the cells in the photovoltaic cell string;

[0077] In the arrangement direction of the cells in the photovoltaic cell string, the lower pressing plate 11 is provided with a plurality of rows of the first hollow portions 3, and each row has a plurality of the first hollow portions 3;

[0078] When the buffer unit 12 is pressed on the welding strip, the first hollow portion 3 of each column can expose all the glue points on two adjacent battery cells in at least one photovoltaic battery string;

[0079] Two buffer units 12 are correspondingly arranged in each column of the first hollow portion 3. When the buffer unit 12 is pressed on the welding strip, each buffer unit 12 is staggered with the gluing point of the battery cell.

[0080] In this embodiment, each column is provided with four first hollow portions 3, and each main grid is provided with two glue points, so that the four first hollow portions 3 in each column can expose all the glue points on the four battery cells, and the four battery cells refer to two adjacent battery cells in one photovoltaic cell string and two adjacent battery cells in another adjacent photovoltaic cell string.

[0081] Of course, one, two, three or more first hollow parts 3 may be provided, and the specific number may be set according to actual needs.

[0082] like Figure 3 and Figure 5 As shown, along the arrangement direction of the cells in the photovoltaic cell string, a second hollow portion 7 is opened in the middle of the lower pressing plate 11;

[0083] An extending direction of the first hollow portion 3 is consistent with an extending direction of the second hollow portion 7 , and the second hollow portion 7 is located between two adjacent first hollow portions 3 .

[0084] The second hollow portion 7 can reduce the weight of the lower pressure plate 11, preventing the lower pressure plate 11 from being too heavy and pressing down on the battery cell, causing damage to the battery cell. At the same time, when encountering a busbar, the busbar can be exposed from the second hollow portion 7 when the lower pressure component 1 presses down on the battery cell to avoid the busbar.

[0085] Specifically, the busbar is located between two photovoltaic cell strings. When the pressing component 1 is pressed down onto the cell sheets of the two photovoltaic cell strings, the busbar between the two photovoltaic cell strings can just be exposed from the second hollow portion 7 .

[0086] like Figure 4-6 As shown, each of the buffer units 12 includes a floating pressure plate 121 and a plurality of floating members 122 , one end of each of the floating members 122 is connected to the lower pressure plate 11 , and the other end is connected to the floating pressure plate 121 .

[0087] Specifically, each of the floating members 122 includes two sleeves, a connecting shaft and a spring. The two sleeves are respectively arranged at the bottom of the lower pressure plate 11 and the top of the floating pressure plate 121. The two ends of the connecting shaft are respectively installed in the two sleeves, and the spring is sleeved on the connecting shaft.

[0088] When the pressing component 1 is pressed down onto the soldering strip, the floating pressing plate 121 is pressed onto the soldering strip. Under the action of the spring, the floating pressing plate 121 can play a buffering role when pressing the soldering strip onto the main grid to avoid damage to the battery cell.

[0089] like Figure 5 As shown, the floating pressure plate 121 includes a plurality of mutually parallel first floating plates 1211 and a plurality of mutually parallel second floating plates 1212, the first floating plates 1211 all extend along the arrangement direction of the cells in the photovoltaic cell string, and the second floating plates 1212 all extend along the transmission direction of the photovoltaic cell string;

[0090] The first hollow portion 3 of each column is penetrated by the second floating plate 1212 of the two floating pressure plates 121;

[0091] When the buffer unit 12 is pressed down onto the welding strip, the second floating plate 1212 is staggered with the gluing point of the battery cell.

[0092] Specifically, along the arrangement direction of the cells in the photovoltaic cell string, the first floating plates 1211 are distributed on both sides of the bottom of the lower pressing plate 11 and between the first hollow portion 3 and the second hollow portion 7;

[0093] Both ends of each second floating plate 1212 are respectively connected to the first floating plates 1211 distributed on both sides of the bottom of the lower pressure plate 11, and the middle part of each second floating plate 1212 is connected to the first floating plate 1211 distributed between the first hollow portion 3 and the second hollow portion 7.

[0094] In this embodiment, four first floating plates 1211 are provided, and two second floating plates 1212 are provided, and the four first floating plates 1211 are connected by two second floating plates 1212. When arranged, the first floating plates 1211 avoid the first hollow portion 3 and the second hollow portion 7, and the second floating plates 1212 avoid the glue points of the battery cells, so that when the floating pressure plate 121 is pressed on the battery cells, the glue points of the battery cells can be exposed through the first hollow portion 3.

[0095] Of course, two, three or five first floating plates 1211 may be provided, as long as they avoid the first hollow portion 3 and the second hollow portion 7; three or more second floating plates 1212 may be provided, as long as they avoid the glue points of the battery cell and the second floating plates 1212 do not block the glue points when the floating pressure plate 121 is pressed on the battery cell.

[0096] like Figure 3 and Figure 5 As shown, along the arrangement direction of the cells in the photovoltaic cell string, the floating members 122 are distributed on both sides of the bottom of the lower pressing plate 11 and are connected to the first floating plate 1211 .

[0097] Continue to refer Figure 2 , the curing mechanism includes a second lifting mechanism 4 and a curing lamp (not shown in the figure), and the curing lamp is located above the pressing component 1;

[0098] There are two second lifting mechanisms 4 , and each second lifting mechanism 4 is arranged corresponding to each first lifting mechanism 2 . The second lifting mechanism 4 drives the curing lamp and the first lifting mechanism 2 to move up and down.

[0099] When the busbar on the photovoltaic assembly is about to be transferred to the bottom of the pressing component 1, the second lifting mechanism 4 drives the curing lamp and the first lifting mechanism 2 to move upward, so that the pressing component 1 and the curing lamp move upward to avoid the busbar.

[0100] When the bus strip is transferred to the bottom of the second hollow portion 7, the second lifting mechanism 4 drives the curing lamp and the first lifting mechanism 2 to move downward so that the curing lamp returns to the initial position (the position where the curing lamp irradiates the battery cell), and then the first driving mechanism 21 drives the lower pressure plate 11 to move downward until the floating pressure plate 121 is pressed on the welding strip. At this time, the bus strip is exposed from the second hollow portion 7 to prevent the lower pressure plate 11 from pressing the bus strip. Then the light beam emitted by the curing lamp is irradiated through the first hollow portion 3 onto the gluing point of the battery cell to cure the UV glue.

[0101] Alternatively, along the conveying direction of the photovoltaic cell string, when the busbar just passes through the pressing component 1 and is located in front of the pressing component 1, the second lifting mechanism 4 drives the curing lamp and the first lifting mechanism 2 to move downward so that the curing lamp returns to its initial position, and then the first driving mechanism 21 drives the pressing plate 11 to move downward until the floating pressing plate 121 is pressed on the welding strip.

[0102] In this embodiment, the curing lamp refers to a UV lamp, and the UV glue is cured by irradiating the UV glue with the UV lamp.

[0103] Specifically, each of the second lifting mechanisms 4 includes a second driving mechanism 41 and a connecting plate 42 connected to the second driving mechanism 41, the second driving mechanism 41 drives the corresponding connecting plate 42 to move up and down, and the two ends of the curing lamp are respectively mounted on the two connecting plates 42;

[0104] The mounting plate 22 is located below the connecting plate 42 , the first driving mechanism 21 is mounted on the connecting plate 42 , and a power output end of the first driving mechanism 21 passes through the connecting plate 42 and is connected to the mounting plate 22 .

[0105] Under the action of the two second driving mechanisms 41, the curing lamps whose two ends are respectively installed on the two connecting plates 42 can move up and down, and because the first driving mechanism 21 is installed on the connecting plate 42, the lower pressure plate 11 is connected to the power output end of the first driving mechanism 21 through the mounting plate 22, so that under the action of the second driving mechanism 41, the lower pressure plate 11 can move up and down with the curing lamp.

[0106] Continue to refer Figure 2 , along the transmission direction of the photovoltaic cell string, both sides of the carrying platform are provided with a busbar avoidance mechanism 5;

[0107] Each of the busbar avoidance mechanisms 5 includes a third driving mechanism 51 and a support plate 52. The third driving mechanism 51 is installed on the base 8, and the support plate 52 is installed on the third driving mechanism 51. The second driving mechanism 41 is installed on the corresponding support plate 52. The third driving mechanism 51 drives the support plate 52 to move along the transmission direction of the photovoltaic cell string.

[0108] During the curing process of the battery cell, when encountering the busbar, the battery cell will be offset by a certain distance in the transmission direction of the photovoltaic cell string. At this time, the pressing component 1 will be misaligned when pressed down onto the welding strip, which may cause the glue points on the battery cell to be blocked by the lower pressing plate 11 or the floating pressing plate 121, affecting the curing of the UV glue.

[0109] In order to ensure that the pressing component 1 will not be misplaced when it is pressed down onto the battery cell, under the action of the third driving mechanism 51, the first lifting mechanism 2 and the second lifting mechanism 4 can be driven to move simultaneously along the position offset direction of the battery cell, and the moving distance is consistent with the position offset distance of the battery cell, so that the pressing component 1 will not be misplaced when it is pressed down onto the welding strip, ensuring that the glue points on the battery cell will not be blocked.

[0110] like Figure 3 and Figure 5-6 As shown, a plurality of floating pins 6 are provided on one side of the lower pressing plate 11 close to the battery cell.

[0111] Specifically, four floating pins 6 are provided, and along the conveying direction of the photovoltaic cell string, two floating pins 6 are provided on both sides of the lower pressing plate 11 respectively.

[0112] The provision of the floating pins 6 can provide secondary positioning for the lower pressing plate 11 during its continuous up and down movement, thereby preventing deviation in the position where the lower pressing plate 11 is pressed down onto the battery cell.

[0113] After the solder strip is placed on the grid line coated with UV glue, the present application drives the lower pressure plate 11 to move downward through the first driving mechanism 21 until the floating pressure plate 121 is pressed on the corresponding solder strip, so that the solder strip is pressed tightly on the main grid of the battery cell without damaging the battery cell. At this time, the glue point on the battery cell is facing the first hollow portion 3, so that the curing lamp located above the lower pressure plate 11 can directly irradiate the glue point, thereby curing the UV glue at the glue point. This method of pressing the solder strip tightly on the main grid and then curing the UV glue can make the curing effect of the UV glue better, improve the placement effect of the solder strip on the main grid of the battery cell, and thus improve the effect of subsequent solder strip welding on the main grid.

[0114] Since the photovoltaic cell string is provided with a busbar, when the busbar is transferred to the bottom of the pressing component 1, the pressing component 1 and the curing lamp need to avoid the busbar. In the present application, the pressing component 1 and the curing lamp can be driven by the second driving mechanism 41 to move upward simultaneously to avoid the busbar.

[0115] In addition, when encountering a busbar during the curing process, the battery cell will have a certain positional offset in the conveying direction of the photovoltaic cell string. The present application uses the third driving mechanism 51 to drive the first lifting mechanism 2 and the second lifting mechanism 4 to move simultaneously along the offset direction of the battery cell. The moving distance is consistent with the offset distance of the battery cell, so that the position of the pressing component 1 will not be offset when it is pressed down onto the battery cell, thereby ensuring the normal curing of the UV glue.

[0116] In this specification, each embodiment is described in a progressive, parallel, or progressive and parallel manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0117] It should be noted that in the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0118] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or device. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the article or device including the above elements.

[0119] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A welding strip fixing device, characterized in that: It includes a bearing mechanism, a pressing mechanism and a curing mechanism; The carrying mechanism includes a carrying platform and a driving mechanism, a photovoltaic cell string is placed on the carrying platform, the photovoltaic cell string includes a plurality of cells arranged in the same direction, and the driving mechanism drives the carrying platform to move along the transmission direction of the photovoltaic cell string; The pressing mechanism comprises a pressing component (1) located above the carrying platform and a first lifting mechanism (2) for driving the pressing component (1) to move up and down, the pressing component (1) having a plurality of first hollow portions (3), and at least one glue point is provided on each main grid of the battery cell; When the battery cell is transferred to the bottom of the pressing component (1), the first lifting mechanism (2) drives the pressing component (1) to press down onto the soldering strip, so that the soldering strip is pressed tightly onto the main grid of the battery cell, and all the glue points on the main grid of the battery cell can be exposed through the first hollow portion (3), so that the curing mechanism can cure all the glue points on the battery cell.

2. A welding strip fixing device according to claim 1, characterized in that: Two first lifting mechanisms (2) are provided, and along the conveying direction of the photovoltaic cell string, the two first lifting mechanisms (2) are respectively arranged on both sides of the carrying platform; One end of the pressing component (1) is mounted on one of the first lifting mechanisms (2), and the other end of the pressing component (1) is mounted on the other of the first lifting mechanisms (2).

3. A welding strip fixing device according to claim 2, characterized in that: Each of the first lifting mechanisms (2) comprises a first driving mechanism (21) and a mounting plate (22); a power output end of the first driving mechanism (21) is connected to a correspondingly arranged mounting plate (22).

4. A welding strip fixing device according to claim 3, characterized in that: The pressing component (1) comprises a pressing plate (11) and a buffer unit (12), wherein the buffer unit (12) is arranged on a side of the pressing plate (11) close to the battery cell, one end of the pressing plate (11) is mounted on one of the mounting plates (22), and the other end of the pressing plate (11) is mounted on the other mounting plate (22); During the curing process of the battery cell, the buffer unit (12) is pressed on the welding strip.

5. A welding strip fixing device according to claim 4, characterized in that: The buffer units (12) are provided in plurality, and the plurality of cells in the photovoltaic cell string are arranged along a direction perpendicular to the conveying direction of the photovoltaic cell string. The plurality of buffer units (12) are arranged on the lower pressing plate (11) along the arrangement direction of the cells in the photovoltaic cell string, and each buffer unit (12) is arranged corresponding to a cell in at least one photovoltaic cell string.

6. A welding strip fixing device according to claim 5, characterized in that: The first hollow portion (3) is arranged on the lower pressing plate (11), and the first hollow portion (3) extends along the arrangement direction of the battery cells in the photovoltaic battery string; In the arrangement direction of the battery cells in the photovoltaic battery string, the lower pressing plate (11) is provided with a plurality of rows of the first hollow portions (3), and each row has a plurality of the first hollow portions (3); When the buffer unit (12) is pressed onto the welding strip, the first hollow portion (3) in each column can expose all the glue points on two adjacent battery cells in at least one photovoltaic battery string; Two buffer units (12) are correspondingly arranged in each column of the first hollowed-out portion (3); when the buffer unit (12) is pressed onto the welding strip, each buffer unit (12) is staggered with the gluing point of the battery cell.

7. A welding strip fixing device according to claim 6, characterized in that: A second hollow portion (7) is provided in the middle of the lower pressing plate (11) along the arrangement direction of the cells in the photovoltaic cell string; The extension direction of the first hollow portion (3) is consistent with the extension direction of the second hollow portion (7), and the second hollow portion (7) is located between two adjacent first hollow portions (3).

8. A welding strip fixing device according to claim 7, characterized in that: Each of the buffer units (12) comprises a floating pressure plate (121) and a plurality of floating members (122); one end of each of the floating members (122) is connected to the lower pressure plate (11), and the other end is connected to the floating pressure plate (121).

9. A welding strip fixing device according to claim 8, characterized in that: The floating pressure plate (121) comprises a plurality of mutually parallel first floating plates (1211) and a plurality of mutually parallel second floating plates (1212), wherein the first floating plates (1211) extend along the arrangement direction of the battery cells in the photovoltaic battery string, and the second floating plates (1212) extend along the transmission direction of the photovoltaic battery string; The first hollow portion (3) of each column is penetrated by the second floating plate (1212) of the two floating pressure plates (121); When the buffer unit (12) is pressed down onto the welding strip, the second floating plate (1212) is staggered with the gluing point of the battery cell.

10. A welding strip fixing device according to claim 9, characterized in that: Along the arrangement direction of the cells in the photovoltaic cell string, the first floating plate (1211) is distributed on both sides of the bottom of the lower pressing plate (11) and between the first hollow portion (3) and the second hollow portion (7); The two ends of each second floating plate (1212) are respectively connected to the first floating plates (1211) distributed on both sides of the bottom of the lower pressure plate (11), and the middle part of each second floating plate (1212) is connected to the first floating plate (1211) distributed between the first hollow part (3) and the second hollow part (7).

11. A welding strip fixing device according to claim 10, characterized in that: Along the arrangement direction of the cells in the photovoltaic cell string, the floating members (122) are distributed on both sides of the bottom of the lower pressing plate (11) and are connected to the first floating plate (1211).

12. A welding strip fixing device according to claim 11, characterized in that: Each of the floating members (122) comprises two shaft sleeves, a connecting shaft and a spring. The two shaft sleeves are respectively arranged at the bottom of the lower pressure plate (11) and the top of the first floating plate (1211). The two ends of the connecting shaft are respectively installed in the two shaft sleeves. The spring is sleeved on the connecting shaft.

13. A welding strip fixing device according to any one of claims 3 to 12, characterized in that: The curing mechanism comprises a second lifting mechanism (4) and a curing light, wherein the curing light is located above the pressing component (1); Two second lifting mechanisms (4) are provided, and each second lifting mechanism (4) is arranged corresponding to each first lifting mechanism (2). The second lifting mechanism (4) drives the curing lamp and the first lifting mechanism (2) to move up and down.

14. A welding strip fixing device according to claim 13, characterized in that: Each of the second lifting mechanisms (4) comprises a second driving mechanism (41) and a connecting plate (42); the power output end of each of the second driving mechanisms (41) is connected to the corresponding connecting plate (42); the second driving mechanism (41) drives the corresponding connecting plate (42) to move up and down; one end of the curing light is mounted on one of the connecting plates (42), and the other end of the curing light is mounted on the other connecting plate (42); The mounting plate (22) is located below the connecting plate (42), the first driving mechanism (21) is mounted on the connecting plate (42), and the power output end of the first driving mechanism (21) passes through the connecting plate (42) and is connected to the mounting plate (22).

15. A welding strip fixing device according to claim 14, characterized in that: Along the transmission direction of the photovoltaic cell string, both sides of the carrying platform are provided with a busbar avoidance mechanism (5); Each of the busbar avoidance mechanisms (5) comprises a third driving mechanism (51) and a support plate (52); the support plate (52) is mounted on the third driving mechanism (51); the second driving mechanism (41) is mounted on a corresponding support plate (52); and the third driving mechanism (51) drives the support plate (52) to move along the transmission direction of the photovoltaic cell string.

16. A welding strip fixing device according to any one of claims 4 to 12, characterized in that: A plurality of floating pins (6) are provided on one side of the lower pressing plate (11) close to the battery sheet.

17. A welding strip fixing device according to claim 16, characterized in that: Four floating pins (6) are provided, and along the conveying direction of the photovoltaic cell string, two floating pins (6) are respectively provided on both sides of the lower pressing plate (11).

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