Solder strip anti-rollover device and series welding machine

Abstract

The utility model provides a welding strip rollover prevention device and a series welding machine. The welding strip rollover prevention device comprises a curing platform and a jacking mechanism. Wherein a curing groove and a mounting groove are formed in the top surface of the curing platform, the curing groove extends in the horizontal direction, and the mounting groove is communicated with the curing groove. The jacking mechanism is mounted in the mounting groove and used for jacking the flat section of the welding strip placed in the curing groove. The jacking mechanism can jack the flat section, it is guaranteed that the flat section does not turn over in the lamination process, in other words, it is guaranteed that the plane of the side, away from the lifting mechanism, of the flat section can be attached to the battery pieces, the battery pieces are free of hidden cracks, and the yield and attractiveness of photovoltaic modules are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a welding strip anti-rollover device and a string welding machine. Background Art

[0002] As the production capacity of the core equipment stringer for photovoltaic module production increases, the ways to increase production capacity are also diversified. Among them, the conventional half-cell stringer is the mainstream equipment in the current market. In order to meet the requirements of increasing production capacity, the existing conventional stringer can carry multiple welding wires at a time. However, most of the welding wires used in the market are pure round welding wires. The spacing between the battery cells needs to be flattened to reduce the risk of hidden cracks in the battery cells. The flattened welding wire will roll during transportation, causing the flat position to tip over, and causing hidden cracks in the battery cells after stacking. Utility Model Content

[0003] Based on this, it is necessary to provide a welding strip anti-rollover device and a string welding machine to address the problem that the flattened welding wire will roll during transportation, causing the flat part to flip over, and causing hidden cracks in the battery cells after stacking.

[0004] The technical solution is as follows:

[0005] On the one hand, a welding strip anti-rollover device is provided, comprising:

[0006] A curing platform, wherein a curing groove and a mounting groove are provided on the top surface of the curing platform, the curing groove extends in a horizontal direction, and the mounting groove is communicated with the curing groove; and

[0007] A lifting mechanism is installed in the installation groove and is used to lift the flat section of the welding strip placed in the curing groove.

[0008] The technical solution is further described below:

[0009] In one of the embodiments, the lifting mechanism includes a driving member and a lifting member, and the driving member is in driving connection with the lifting member, so that the lifting member can be lifted and lowered in a vertical direction to lift the flat section.

[0010] In one embodiment, the lifting member includes a mounting portion and a lifting portion, the driving member is transmission-connected to the mounting portion, the lifting portion is located on a top surface of the mounting portion, and the lifting portion is used to lift the flat section.

[0011] In one of the embodiments, along the extension direction of the mounting groove, the length of the lifting portion is less than or equal to the length of the flat section.

[0012] In one embodiment, when the lifting portion lifts the flat section, the top surface of the lifting portion is located above the curing platform and is spaced apart from the curing platform by a first height. After the lifting portion lifts the flat section, the top surface of the lifting portion is located above the curing platform and is spaced apart from the curing platform by a second height, and the first height is greater than the second height.

[0013] In one embodiment, the number of the curing grooves is at least two, each of the curing grooves is spaced apart along a first direction and is connected to the corresponding mounting groove, and the first direction is perpendicular to the extension direction of the curing grooves.

[0014] In one embodiment, the mounting groove vertically penetrates the curing platform and extends along the first direction.

[0015] In one of the embodiments, the curing platform is further provided with a vacuum hole, one end of the vacuum hole is connected to the curing tank, and the other end of the vacuum hole is used to communicate with a vacuum extractor.

[0016] On the other hand, a string welding machine is provided, including a wire drawing device and the welding strip anti-rollover device, the wire drawing device is provided with a cutting tool and a flattening tool arranged at intervals, the cutting tool is used to shear the welding strip, the flattening tool is used to flatten the welding strip to form a flat section, and the welding strip anti-rollover device is used to fix the welding strip with the flat section.

[0017] In one of the embodiments, the stringer further includes a wire moving device, and the wire moving device is used to move the welding ribbon to the welding ribbon anti-rollover device.

[0018] When the welding ribbon anti-rollover device and string welding machine in the above-mentioned embodiment are used, the welding ribbon with the flat section is placed in the curing tank, and the flat section is located above the lifting mechanism, so that the lifting mechanism can lift the flat section to form a high point at the flat section. When the flat section rolls over, the lifting mechanism lifts the flat section and contacts the arc surface of the flat section, so that the flat section can rotate and lie flat under the action of gravity, ensuring that the plane of the flat section is in contact with the lifting mechanism. When the flat section does not roll over, the lifting mechanism lifts the flat section, and the lifting mechanism always keeps in contact with the plane of the flat section. The lifting mechanism in the present application can lift the flat section to ensure that the flat section will not roll over during the stacking process, that is, to ensure that the plane of the flat section away from the lifting mechanism can fit with the battery cell, and the battery cell has no hidden cracks, thereby improving the yield and aesthetics of the photovoltaic module. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] FIG. 1 is a schematic structural diagram of a welding strip anti-rollover device according to an embodiment.

[0022] FIG. 2 is a cross-sectional view of the welding strip anti-rollover device of FIG. 1 along the AA direction.

[0023] FIG. 3 is a partial enlarged view of portion B in FIG. 2 .

[0024] Description of reference numerals:

[0025] 10. Welding strip anti-rollover device; 100. Curing platform; 110. Curing groove; 120. Mounting groove; 130. Vacuum hole; 200. Lifting mechanism; 210. Lifting piece; 211. Mounting part; 212. Lifting part; 300. Welding strip; 310. Flat section; 320. Pure round section. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0027] As shown in FIG. 1 and FIG. 2 , in one embodiment, a device 10 for preventing a welding strip from rolling over is provided, comprising a curing platform 100 and a lifting mechanism 200. The top surface of the curing platform 100 is provided with a curing groove 110 and a mounting groove 120, the curing groove 110 extends in a horizontal direction, and the mounting groove 120 is connected to the curing groove 110. The lifting mechanism 200 is installed in the mounting groove 120, and is used to lift the flat section 310 of the welding strip 300 placed in the curing groove 110.

[0028] When the welding strip anti-rollover device 10 in the above embodiment is used, the welding strip 300 with the flat section 310 is placed in the curing tank 110, and the flat section 310 is located above the lifting mechanism 200, so that the lifting mechanism 200 can lift the flat section 310 to form a high point at the flat section 310. When the flat section 310 rolls over, the lifting mechanism 200 lifts the flat section 310 and contacts the arc surface of the flat section 310, so that the flat section 310 can rotate and lie flat under the action of gravity, ensuring that the plane of the flat section 310 is in contact with the lifting mechanism 200. When the flat section 310 does not roll over, the lifting mechanism 200 lifts the flat section 310, and the lifting mechanism 200 always keeps in contact with the plane of the flat section 310. The lifting mechanism 200 in the present application can lift the flat section 310 to ensure that the flat section 310 does not tip over during the stacking process, that is, to ensure that the plane of the flat section 310 away from the lifting mechanism can fit with the battery cell, and the battery cell has no hidden cracks, thereby improving the yield and aesthetics of the photovoltaic module.

[0029] The welding strip 300 includes but is not limited to welding wire. The flat section 310 is located in the middle of the welding strip 300. The outer side wall of the flat section 310 includes two planes and two arc surfaces. The two planes are arranged at intervals, and the two opposite ends of the two planes are correspondingly connected through the two arc surfaces. Specifically in this embodiment, the solidification groove 110 passes through the solidification platform 100 in the horizontal direction. The cross-section of the solidification groove 110 is arranged in a semicircular shape. The welding strip 300 also includes two pure circular sections 320. The two pure circular sections 320 are correspondingly connected to the two ends of the flat section 310. The inner contour shape of the solidification groove 110 is adapted to the outer contour shape of the pure circular section 320.

[0030] Specifically in this embodiment, the mounting groove 120 is arranged in the middle position of the curing platform 100, and the two sides of the top of the curing platform 100 are used to place the battery cells, and the flat section 310 is located at the interval between the two battery cells and is arranged corresponding to the lifting mechanism 200 at the mounting groove 120.

[0031] As shown in FIG. 1 and FIG. 2 , optionally, the curing platform 100 is further provided with a vacuum hole 130, one end of the vacuum hole 130 is connected to the curing groove 110, and the other end of the vacuum hole 130 is used to communicate with a vacuum pump (not shown). In this way, the vacuum pump can pump out the air in the vacuum hole 130, so that the welding strip 300 can be stably and reliably fixed in the installation groove 120 under the action of air pressure, ensuring that the flat section 310 will not roll over during the lamination process, thereby improving the reliability of the welding strip anti-rollover device 10.

[0032] The number of vacuum holes 130 can be flexibly adjusted according to actual use needs. Specifically in this embodiment, there are at least two vacuum holes 130, each vacuum hole 130 is arranged at intervals along the extension direction of the curing groove 110 (such as the direction described by C in Figure 1), each vacuum hole 130 passes through the curing platform 100 in the vertical direction, and the vacuum pump can be set as a vacuum pump, and each vacuum hole 130 is connected to the vacuum pump.

[0033] As shown in FIG. 1 and FIG. 2 , in one embodiment, the lifting mechanism 200 includes a driving member (not shown) and a lifting member 210, and the driving member is in transmission connection with the lifting member 210, so that the lifting member 210 can be lifted and lowered in the vertical direction to lift the flat section 310. In this way, the driving member drives the lifting member 210 to be lifted and lowered in the vertical direction, so that the lifting member 210 can correspondingly lift the flat section 310, so as to control the height of the high point at the flat section 310, ensure that the flat section 310 can be rotated and laid flat, and improve the reliability of the welding strip anti-rollover device 10.

[0034] The driving member may be configured as a lifting motor, a lifting cylinder or other driving structures.

[0035] As shown in Fig. 2 and Fig. 3, further, the lifting member 210 includes a mounting portion 211 and a lifting portion 212, the driving member is in transmission connection with the mounting portion 211, the lifting portion 212 is located on the top surface of the mounting portion 211, and the lifting portion 212 is used to lift the flat section 310. In this way, the lifting portion 212 can be installed on the driving member through the mounting portion 211, thereby improving the convenience of assembling the welding strip anti-rollover device 10.

[0036] As shown in FIG. 2 and FIG. 3 , optionally, along the extension direction of the mounting groove 120, the length of the lifting portion 212 is less than or equal to the length of the flat section 310. In this way, it is ensured that the lifting portion 212 can contact the flat section 310, and it is prevented that the lifting portion 212 contacts the pure circular section 320, which causes the flat section 310 to be unable to rotate and lie flat, thereby improving the reliability of the welding strip anti-rollover device 10.

[0037] Specifically in this embodiment, along the extension direction of the installation groove 120 , the length of the flat section 310 is 4 mm to 8 mm, and the length of the lifting portion 212 is 1 mm to 2 mm.

[0038] As shown in FIG. 2 and FIG. 3 , optionally, when the lifting portion 212 lifts the flat section 310, the top surface of the lifting portion 212 is located above the curing platform 100 and is spaced apart from the curing platform 100 by a first height. After the lifting portion 212 lifts the flat section 310, the top surface of the lifting portion 212 is located above the curing platform 100 and is spaced apart from the curing platform 100 by a second height, and the first height is greater than the second height. In this way, during the lifting process, the top surface of the lifting portion 212 rises to the first height, ensuring that the flat section 310 can rotate and lie flat under the action of gravity. After the lifting portion 212 lifts the flat section 310, the top surface of the lifting portion 212 drops to the second height, so that the top surface of the lifting portion 212 fits with the plane of the flat section 310 to limit the rotation of the flat section 310, ensuring that the welding strip 300 will not roll over during the lamination process, thereby improving the reliability of the welding strip anti-rollover device 10.

[0039] The values ​​of the first height and the second height can be flexibly adjusted according to the actual use requirements. Specifically in this embodiment, the value range of the first height is 0.5mm~1mm; the value range of the second height is 0.2mm~0.3mm.

[0040] In one embodiment, at least two curing grooves 110 are provided, each curing groove 110 is arranged at intervals along a first direction (the direction shown by D in FIG. 1 ), and each is connected to the mounting groove 120, and the first direction is perpendicular to the extension direction of the curing groove 110. In this way, the curing platform 100 can place multiple welding strips 300 at a time, and multiple welding strips 300 can be synchronously lifted by a lifting mechanism 200, so that each welding strip 300 can be quickly adjusted to a lying state, thereby improving the production efficiency of the photovoltaic module.

[0041] Specifically in this embodiment, the inner contour of the mounting groove 120 is matched with the outer contour of the lifting member 210. In this way, the inner wall side of the mounting groove 120 can guide the lifting member 210, ensuring that the lifting member 210 can be stably and reliably lifted and lowered in the vertical direction, thereby improving the reliability of the welding strip anti-rollover device 10.

[0042] As shown in Fig. 1 and Fig. 2, optionally, the mounting groove 120 passes through the curing platform 100 in a vertical direction and extends in a first direction, so as to improve the convenience of assembling the welding strip anti-rollover device 10.

[0043] Specifically in this embodiment, the lifting portion 212 extends along the first direction.

[0044] In one embodiment, a string welding machine (not shown) is provided, including a wire drawing device (not shown) and the welding strip anti-rollover device 10 in any of the above embodiments, the wire drawing device is provided with a cutter tool and a flattening tool arranged at intervals, the cutter tool is used to shear the welding strip 300, the flattening tool is used to flatten the welding strip 300 to form a flat section 310, and the welding strip anti-rollover device 10 is used to fix the welding strip 300 with the flat section 310.

[0045] When the string welding machine in the above embodiment is used, the long welding strip is pulled to the preset position on the wire drawing device, the flattening tool is used to flatten the welding strip 300, and then the cutting tool is used to shear the welding strip 300 to form welding strips 300 with pure circular segments 320 at both ends and a flat segment 310 in the middle. The welding strip 300 with the flat segment 310 is placed in the curing tank 110, and the flat segment 310 is located above the lifting mechanism 200, so that the lifting mechanism 200 can lift the flat segment 310 to form a high point at the flat segment 310. When the flat segment 310 flips over, the lifting mechanism 200 lifts the flat segment 310 and contacts the arc surface of the flat segment 310, so that the flat segment 310 can rotate and lie flat under the action of gravity, ensuring that the plane of the flat segment 310 contacts the lifting mechanism 200. When the flat section 310 does not flip over, the lifting mechanism 200 lifts the flat section 310, and the lifting mechanism 200 always keeps in contact with the plane of the flat section 310. The lifting mechanism 200 in the present application can lift the flat section 310 to ensure that the flat section 310 does not flip over during the stacking process, that is, to ensure that the plane of the side of the flat section 310 away from the lifting mechanism can fit with the battery cell, and the battery cell has no hidden cracks, thereby improving the yield and aesthetics of the photovoltaic module.

[0046] Specifically in this embodiment, the wire drawing device is further provided with a bearing flat belt, and the bearing platform is used to bear the long welding wire.

[0047] Optionally, the stringer further comprises a wire moving device (not shown), which is used to move the welding ribbon 300 to the welding ribbon anti-rollover device 10. In this way, the automation level of the stringer is improved.

[0048] Among them, the wire drawing device and the wire moving device can correspond to the wire drawing device and the wire moving device in the existing string welding machine, which will not be described in detail here.

[0049] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does 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.

[0050] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0052] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0053] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0054] It should also be understood that when explaining the connection relationship or positional relationship of elements, although not explicitly described, the connection relationship and positional relationship are interpreted as including an error range, which should be within the acceptable deviation range of a specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" may mean within one or more standard deviations, which are not limited here.

[0055] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A welding strip anti-rollover device (10), characterized in that: include: A curing platform (100), wherein a curing groove (110) and a mounting groove (120) are provided on a top surface of the curing platform (100), the curing groove (110) extending in a horizontal direction, and the mounting groove (120) communicating with the curing groove (110); and A lifting mechanism (200) is installed in the installation groove (120) and is used to lift the flat section (310) of the welding strip (300) placed in the curing groove (110).

2. The welding strip anti-rollover device (10) according to claim 1, characterized in that: The lifting mechanism (200) comprises a driving member and a lifting member (210), wherein the driving member is in driving connection with the lifting member (210), so that the lifting member (210) can be lifted and lowered in a vertical direction to lift the flat section (310).

3. The welding strip anti-rollover device (10) according to claim 2, characterized in that: The lifting member (210) comprises a mounting portion (211) and a lifting portion (212); the driving member is drivingly connected to the mounting portion (211); the lifting portion (212) is located on the top surface of the mounting portion (211); and the lifting portion (212) is used to lift the flat section (310).

4. The welding strip anti-rollover device (10) according to claim 3, characterized in that: Along the extension direction of the mounting groove (120), the length of the lifting portion (212) is less than or equal to the length of the flat section (310).

5. The welding strip anti-rollover device (10) according to claim 3, characterized in that: When the lifting portion (212) lifts the flat section (310), the top surface of the lifting portion (212) is located above the curing platform (100) and is spaced apart from the curing platform (100) by a first height; after the lifting portion (212) lifts the flat section (310), the top surface of the lifting portion (212) is located above the curing platform (100) and is spaced apart from the curing platform (100) by a second height, and the first height is greater than the second height.

6. The welding strip anti-rollover device (10) according to claim 1, characterized in that: At least two of the curing grooves (110) are provided, each of the curing grooves (110) is arranged at intervals along a first direction and is correspondingly connected to the mounting groove (120), and the first direction is perpendicular to the extension direction of the curing grooves (110).

7. The welding strip anti-rollover device (10) according to claim 6, characterized in that: The mounting groove (120) passes through the curing platform (100) in a vertical direction and extends along the first direction.

8. The welding strip anti-rollover device (10) according to any one of claims 1 to 7, characterized in that: The curing platform (100) is further provided with a vacuum hole (130), one end of the vacuum hole (130) is in communication with the curing groove (110), and the other end of the vacuum hole (130) is used to be in communication with a vacuum extracting member.

9. A string welding machine, characterized in that: The invention comprises a wire drawing device and a welding strip anti-rollover device (10) as claimed in any one of claims 1 to 8, wherein the wire drawing device is provided with a cutter tool and a flattening tool arranged at intervals, the cutter tool is used to shear the welding strip (300), the flattening tool is used to flatten the welding strip (300) to form a flat section (310), and the welding strip anti-rollover device (10) is used to fix the welding strip (300) with the flat section (310).

10. The stringer according to claim 9, characterized in that: The stringer further comprises a wire moving device, the wire moving device being used to move the welding ribbon (300) onto the welding ribbon anti-rollover device (10).

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