Band limiting device and back contact cell welding machine

Abstract

The utility model discloses a band limiting device and back contact battery welding machine, specifically includes frame, press bar, elastic part and drive mechanism. Frame includes top plate, and the top plate is provided with material bearing part, and press bar includes the head of pole, and the pressure surface of head of pole is opposite with material bearing part of top plate and interval setting, and elastic part sets up on head of pole, and elastic part extends from head of pole to material bearing part and protrudes from pressure surface, and drive mechanism is linked with press bar, and drive mechanism drives elastic part on head of pole to draw close to or away from material bearing part of top plate. Through setting up elastic part on the head of pole of press bar, the head of pole of press bar and material bearing part of top plate can reliably limit the band, and guarantee the processing quality of band in subsequent cutting or shaping and other procedures.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic module testing technology, and in particular relates to a strip-shaped limiting device and a back contact battery welding machine. Background Technology

[0002] Back contact (BC) batteries are a type of solar cell technology that integrates all positive and negative metal contacts on the back side, and their grid-free design on the front side can absorb more sunlight.

[0003] In BC battery welding, the solder strip needs to be cut into small segments, which are then welded to the back contact cell. Therefore, there is an urgent need for a device that can stably limit the position of the solder strip so that the cutting mechanism can cut the solder strip into multiple small segments. Utility Model Content

[0004] The main purpose of this invention is to provide a strip-shaped object limiting device that can stably limit the position of a strip-shaped object.

[0005] To achieve the above objectives, this utility model provides a strip-shaped object limiting device, including a frame, a pressure rod, an elastic element, and a driving mechanism. The frame includes a top plate, and the top plate is provided with a material bearing part.

[0006] The pressure bar includes a bar head, and the pressure-bearing surface of the bar head is opposite to and spaced apart from the material-bearing part of the top plate;

[0007] An elastic element is disposed on the rod head, and the elastic element extends from the rod head toward the material bearing part and protrudes from the pressure bearing surface;

[0008] The drive mechanism is connected to the pressure rod, and the drive mechanism drives the elastic element on the rod head to move closer to or away from the material bearing part of the top plate.

[0009] Preferably, the elastic element is ring-shaped and is sleeved on the rod head.

[0010] Preferably, an annular groove is formed on the outer periphery of the rod head, and the elastic element is sleeved in the annular groove.

[0011] Preferably, the cross-section of the rod head perpendicular to its length direction is square, and the elastic element fitted onto the rod head is square-shaped.

[0012] Preferably, the pressure-bearing side of the elastic element is serrated or embossed.

[0013] Preferably, the elastic element is flat and is fixed to the pressure-bearing surface of the rod head.

[0014] Preferably, the elastic element is made of rubber.

[0015] Preferably, the frame further includes side plates, the bottom ends of the two side plates are connected to the bottom plate surface, the top ends of the two side plates are respectively connected to the two ends of the top plate, and the two side plates are spaced apart and arranged opposite to each other;

[0016] The top plate includes a support plate, one side of which protrudes outward to form two or more material support sections; the head of the pressure rod is located between two adjacent material support sections.

[0017] Preferably, the driving mechanism includes a mounting plate, two first slide rails, two first sliders, and a first cylinder. The mounting plate is slidably fitted with the base plate, and the two first slide rails are fixed to the mounting plate. The length directions of the two first slide rails are parallel to each other and perpendicular to the surface of the material carrying part.

[0018] Two first sliders are fixed to the plate at the lower part of the pressure rod, and the first sliders on the plate at the lower part of the pressure rod slide in cooperation with the first slide rail;

[0019] The cylinder body of the first cylinder is fixed to the mounting plate, and the telescopic rod of the first cylinder is fixed to the plate at the lower part of the pressure rod. The first cylinder drives the rod head of the pressure rod to move closer to or away from the material bearing part.

[0020] This utility model also provides a back contact battery welding machine, including the aforementioned strip limiting device, wherein the material carrying part is for placing the welding strip to be limited.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] By setting an elastic element on the head of the pressure bar, the pressure bar head and the material bearing part of the top plate can reliably limit the strip, ensuring the processing quality of the strip in subsequent cutting or shaping processes. Attached Figure Description

[0023] Figure 1 This is a perspective view of the strip-shaped object limiting device according to an embodiment of the present utility model;

[0024] Figure 2 for Figure 1 A three-dimensional view after being sectioned along the AA direction;

[0025] Figure 3 for Figure 2 Enlarged view of the structure at point B in the middle;

[0026] Figure 4 for Figure 3 Schematic diagram of the downward movement limit welding strip of the intermediate pressure rod;

[0027] Figure 5 for Figure 1 A three-dimensional view from another angle after being sectioned along the AA direction;

[0028] Figure 6 This is a 3D view of the frame. Detailed Implementation

[0029] Please refer to Figures 1-6 This embodiment is a strip-shaped object limiting device, including a frame 10, a pressure rod 20, an elastic element 30 and a driving mechanism. The frame 10 includes a top plate 11, and the top plate 11 is provided with a material carrying part 111.

[0030] The pressure bar 20 includes a bar head 21, and the pressure-bearing surface 211 of the bar head 21 is opposite to and spaced apart from the material bearing part 111 of the top plate 11.

[0031] The elastic element 30 is disposed on the rod head 21. The elastic element 30 extends from the rod head 21 toward the material bearing part 111 and protrudes from the pressure bearing surface 211.

[0032] The drive mechanism is connected to the pressure rod 20, and the drive mechanism drives the elastic element 30 on the rod head 21 to move closer to or away from the material bearing part 111 of the top plate 11.

[0033] The strip can be a strip-shaped object such as welding strip, and this embodiment does not limit this.

[0034] By providing an elastic element 30 on the head 21 of the pressure bar 20, the head 21 of the pressure bar 20 and the material bearing part 111 of the top plate 11 can reliably limit the strip, ensuring the processing quality of the strip in subsequent cutting or shaping processes.

[0035] Workers only need to fit the elastic element 30 onto the pole head 21, improving the installation efficiency of the elastic element 30. In addition, since the elastic element 30 is a vulnerable part, it is also convenient to inspect or replace.

[0036] An annular groove is formed on the outer periphery of the rod head 21, and the elastic element 30 is fitted into the annular groove. On the one hand, the relative position of the annular groove and the material bearing part 111 is determined, and the elastic element 30 is fitted into the annular groove, which is the designed position of the elastic element 30. There is no need to adjust the position of the elastic element 30 on the rod head 21, which further improves the installation efficiency. On the other hand, the limiting groove on the outer periphery of the rod head 21 can reliably limit the elastic element 30, preventing the elastic element 30 from falling out during operation and improving the limiting reliability of the welding strip 1.

[0037] The cross-section of the rod head 21 perpendicular to its length is square, and the elastic element 30 fitted onto the rod head 21 is square-shaped. The bottom surface of the square-shaped elastic element 30 is flatter, which increases the pressing area of ​​the elastic element 30 on the welding strip 1 and ensures that the welding strip 1 can be reliably limited.

[0038] The pressure-bearing side of the elastic element 30 is serrated or embossed, which increases the friction coefficient of the pressure-bearing side of the elastic element 30, increases the friction between the elastic element 30 and the welding strip 1, and prevents the elastic element 30 and the welding strip 1 from sliding relative to each other, which would cause the welding strip 1 to deform.

[0039] The elastic element 30 is flat and is fixed to the bearing surface 211 of the rod head 21. The elastic element 30 can be fixed to the bearing surface 211 by screws or glue, which reduces the amount of elastic element used and lowers the manufacturing cost.

[0040] Furthermore, the elastic element can be made of rubber.

[0041] like Figure 6 The frame 10 shown also includes side plates 12. The bottom ends of the two side plates 12 are connected to the surface of the bottom plate 13, and the top ends of the two side plates 12 are respectively connected to the two ends of the top plate 11. The two side plates 12 are spaced apart and arranged opposite to each other.

[0042] The top plate 11 includes a support plate 112, one side of which protrudes outward to form two or more material support parts 111, and the head 21 of the pressure bar 20 is located between two adjacent material support parts 111;

[0043] The drive mechanism is connected to the lower end of the pressure bar 20. The drive mechanism drives the bar head 21 of the pressure bar 20 to move closer to or away from the material bearing part 111.

[0044] The drive mechanism includes a mounting plate 41, two first slide rails 42, two first sliders 43 and a first cylinder 44. The two first slide rails 42 are fixed to the mounting plate 41. The length directions of the two first slide rails 42 are parallel to each other and perpendicular to the plate surface of the material carrying part 111.

[0045] Two first sliders 43 are fixed to the plate at the lower part of the pressure rod 20, and the first sliders 43 on the lower plate of the pressure rod 20 are slidably engaged with the first slide rail 42;

[0046] The cylinder body of the first cylinder 44 is fixed to the mounting plate 41, and the telescopic rod of the first cylinder 44 is fixed to the plate at the lower part of the pressure rod 20. The first cylinder 44 drives the rod head 21 of the pressure rod 20 to move closer to or further away from the material bearing part 111, that is, the rod head 21 of the pressure rod 20 reciprocates along the M1 direction.

[0047] Two second sliders 53 are fixed to the bottom of the mounting plate 41, and two second slide rails 52 are fixed to the surface of the base plate 13. The mounting plate 41 and the base plate 13 slide together. The cylinder body of the second cylinder 51 is fixed to the inner surface of the side plate 12. The telescopic rod of the second cylinder 51 is fixed to the mounting plate 41. The second cylinder 51 drives the mounting plate 41 to reciprocate along the M2 direction.

[0048] The second cylinder 51 drives the rod head 21 of the pressure rod 20 to reciprocate along the M2 direction, so that the rod head 21 can be in a position that avoids the welding strip picking and placing path on the top plate 11.

[0049] Another embodiment of this utility model provides a back-contact battery welding machine, including the strip limiting device of the aforementioned embodiment, and a material carrying part 111 for placing the welding strip to be limited. The welding strip can be a round welding strip, a flat welding strip, or a triangular welding strip. The strip is stably limited by the strip limiting device, and the welding strip can be subsequently cut into small segments by a cutting mechanism to ensure the welding quality between the welding strip and the battery cell.

[0050] The following are illustrative examples of cutting mechanisms, such as... Figure 5 As shown, the cutting mechanism includes two third sliders, two third slide rails, and a third cylinder 61.

[0051] Two third slide rails are fixed to the back of the mounting plate 41, and the length directions of the two third slide rails are parallel to each other and perpendicular to the surface of the top plate 11;

[0052] The two third sliders are fixed to the inner side of the lower cutter 62, and the third sliders on the lower cutter 62 are slidably engaged with the third slide rail.

[0053] The cylinder body of the third cylinder 61 is fixed to the mounting plate 41 between the two third slide rails. The third cylinder 61 drives the lower cutter 62 to reciprocate along the M3 direction. The lower cutter 62 cooperates with the upper cutter 63 to cut the welding strip 1.

[0054] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A tape restraining device characterized by, include: A frame (10) including a top plate (11) having a material support section (111); A pressure bar (20) includes a bar head (21), the pressure-bearing surface (211) of the bar head (21) being opposite to and spaced apart from the material-bearing part (111) of the top plate (11); An elastic element (30) is disposed on the rod head (21), the elastic element (30) extends from the rod head (21) toward the material bearing part (111) and protrudes from the pressure bearing surface (211); A drive mechanism connected to the pressure rod (20) drives the elastic element (30) on the rod head (21) to move closer to or away from the material bearing part (111) of the top plate (11).

2. The belt positioner of claim 1 wherein, The elastic element is ring-shaped and is sleeved on the rod head (21).

3. The belt positioner of claim 2 wherein, The rod head (21) has an annular groove on its outer periphery, and the elastic element (30) is sleeved in the annular groove.

4. The tape-positioning device of claim 1 or 2 or 3, wherein The cross section of the rod head (21) perpendicular to its length direction is square, and the elastic element (30) sleeved on the rod head (21) is square-shaped.

5. The belt positioner of claim 1 wherein, The pressure side of the elastic element (30) is serrated or embossed.

6. The strip-shaped object limiting device as described in claim 1, characterized in that, The elastic element (30) is flat and is fixed to the pressure-bearing surface (211) of the rod head (21).

7. The belt positioner of claim 4 wherein, The elastic element (30) is made of rubber.

8. The belt positioner of claim 1 wherein, The framework (10) also includes: Two side plates (12) are connected at their bottom ends to the bottom plate (13) and at their top ends to the two ends of the top plate (11) respectively. The two side plates (12) are spaced apart and arranged opposite to each other. The top plate (11) includes a support plate (112), and one side of the support plate (112) protrudes outward to form two or more material support parts (111); The head (21) of the pressure bar (20) is located between two adjacent material bearing parts (111).

9. The tape-positioning device of claim 8, wherein The drive mechanism includes: Mounting plate (41), which is in sliding fit with base plate (13); Two first slide rails (42) are fixed to the mounting plate (41), and the length directions of the two first slide rails (42) are parallel to each other and perpendicular to the plate surface of the material carrying part (111); Two first sliders (43) are fixed to the plate at the lower part of the pressure rod (20), and the first sliders (43) on the lower plate of the pressure rod (20) are slidably engaged with the first slide rail (42); The first cylinder (44) has its cylinder body fixed to the mounting plate (41). The telescopic rod of the first cylinder (44) is fixed to the plate at the lower part of the pressure rod (20). The first cylinder (44) drives the rod head (21) of the pressure rod (20) to move closer to or away from the material bearing part (111).

10. A back contact cell welder characterized by, Includes the strip limiting device as described in any one of claims 1-9, wherein the material carrier (111) is for placing the welding strip to be limited.

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