Shearing device and shearing method for bus bar

Abstract

The invention relates to a shearing device and method for bus bars, and the shearing device comprises a first driving part, the output end of the first driving part is connected with a mounting plate, and the first driving part can drive the mounting plate to ascend and descend; the at least two material pressing pieces are connected with the mounting plate, and a gap exists between every two adjacent material pressing pieces; the second driving part is connected with the mounting plate; and the shearing part is connected with the output end of the second driving part, and the shearing end of the shearing part can stretch into the gap between the two adjacent material pressing parts. According to the shearing device and method for the bus bar, the precision of the shearing position of the protrusion on the bus bar can be improved.

Description

Technical Field

[0001] This invention relates to the field of shearing structure technology, and in particular to a shearing device and shearing method for busbars. Background Technology

[0002] Photovoltaic modules are composed of multiple photovoltaic cells connected together, with current conducted through busbars. After the busbars are attached to the cells, to facilitate external connections, the middle section of the busbar needs to be lifted during installation, forming a bulge. The bulge is then cut off at its middle position to create a connector. Currently, this bulge is directly cut using a shearing device. However, because lifting the busbar causes some sections attached to the cells to detach, the bulge becomes tilted, and the height of the bulge varies between different busbars, making it impossible to cut the bulge completely at its middle position. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to provide a shearing device and shearing method for busbars, which can improve the accuracy of the shearing position of the protrusions on the busbar.

[0004] To solve the above-mentioned technical problems, the present invention provides a shearing device for a busbar, comprising: a first driving member, the output end of which is connected to a mounting plate, the first driving member being capable of driving the mounting plate to move up and down; a pressing member, at least two of which are connected to the mounting plate, with a gap between adjacent pressing members; a second driving member, which is connected to the mounting plate; and a shearing member, which is connected to the output end of the second driving member, the shearing end of which can extend into the gap between adjacent pressing members.

[0005] In one embodiment of the present invention, grooves are provided on opposite sides of two adjacent pressing members, and the grooves of the two pressing members form a clearance opening, so that the shearing end of the shearing member can be located within the clearance opening.

[0006] In one embodiment of the present invention, a first connecting plate, a second connecting plate, and an elastic element are further included. The elastic element is located between the first connecting plate and the second connecting plate. The mounting plate is connected to the first connecting plate, and the pressing element is connected to the second connecting plate.

[0007] In one embodiment of the present invention, the second connecting plate is connected to a guide rod, the guide rod passes through the first connecting plate and is slidably connected to the first connecting plate, the end of the guide rod is connected to a blocking member, the blocking member can abut against the first connecting plate, and the elastic member is sleeved on the guide rod.

[0008] In one embodiment of the present invention, a movable plate is further included, the guide rod passes through the movable plate and is slidably connected to the movable plate, the elastic element is located between the movable plate and the second connecting plate, the first connecting plate is connected to a pressure detection element, and the movable plate is capable of abutting against the detection end of the pressure detection element.

[0009] In one embodiment of the present invention, the second connecting plate is connected to at least two of the guide rods, and each of the guide rods is fitted with an elastic element.

[0010] In one embodiment of the present invention, the mounting plate is provided with a bayonet, and the first connecting plate is provided with a locking block, wherein the bayonet engages with the locking block.

[0011] In one embodiment of the present invention, the second connecting plate is provided with a mating groove, and the bottom of the mating groove is provided with a plurality of connecting holes, and the pressing component is connected to the second connecting plate through the connecting holes.

[0012] In one embodiment of the present invention, a pressure block is connected to the pressure side of the pressure member.

[0013] The present invention also provides a busbar shearing method, which uses the above-mentioned busbar shearing device to shear the protruding position of the busbar, including the following steps: Step S1: Align the gap between two adjacent pressing members with the protruding position of the busbar; Step S2: Lower the mounting plate until the pressing member abuts against the busbar, and the protrusion of the busbar is located in the gap between the two adjacent pressing members; Step S3: Move the shearing member, and the protrusion of the busbar is located at the shearing end of the shearing member; Step S4: The shearing member shears the protruding position of the busbar.

[0014] The technical solution of the present invention has the following advantages compared with the prior art:

[0015] This invention discloses a shearing device and method for busbars. Through the cooperation of a pressing component and a first driving component, the pressing component abuts against the busbars on both sides of the protrusion, ensuring the busbars on both sides of the protrusion adhere to the battery cell, thereby preventing the protrusion from tilting and different protrusion heights of different busbars. The gap between adjacent pressing components ensures the protrusion is located within the gap, preventing deformation caused by the pressing component. When the pressing component abuts against the busbars on both sides of the protrusion, the protrusion is located in the middle of the gap between the two pressing components. This allows the shearing component to cut the protrusion at its center when shearing different busbar protrusions, improving the accuracy of the shearing position on the busbar. The elastic element allows the first connecting plate to continue descending when the pressing component abuts against the busbar and applies pressure, compressing the elastic element and buffering the busbar to prevent damage. Attached Figure Description

[0016] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the structure of a busbar shearing device according to the present invention;

[0018] Figure 2 yes Figure 1 A magnified view of a portion of position A in the middle;

[0019] Figure 3 This is a schematic diagram of the busbar structure.

[0020] Explanation of reference numerals in the accompanying drawings: 1. First driving component; 2. Mounting plate; 3. Elastic component; 4. Pressure component; 5. Shearing component; 6. Second driving component; 7. Busbar; 11. Third connecting plate; 21. Bayonet; 31. First connecting plate; 32. Locking block; 33. Guide rod; 34. Blocking component; 35. Pressure detection component; 36. Movable plate; 41. Second connecting plate; 42. Pressure block; 43. Gap; 44. Clearance surface; 45. Mating groove; 46. Groove; 51. Shearing blade; 52. Second connecting seat; 61. First connecting seat; 71. Protrusion. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0022] Reference Figures 1 to 3 As shown, a shearing device for a busbar according to the present invention includes: a first driving member 1, the output end of which is connected to a mounting plate 2, and the first driving member 1 is capable of driving the mounting plate 2 to rise and fall; a pressing member 4, at least two of which are connected to the mounting plate 2, and a gap 43 exists between adjacent pressing members 4; a second driving member 6, which is connected to the mounting plate 2; and a shearing member 5, which is connected to the output end of the second driving member 6, and the shearing end of the shearing member 5 is capable of extending into the gap 43 between adjacent pressing members 4.

[0023] In this embodiment, a busbar shearing device first aligns the gap 43 between two adjacent pressing members 4 with the position of the protrusion 71 of the busbar 7 when shearing the protrusion 71 of the busbar 7. Then, the first driving member 1 drives the mounting plate 2 to descend until the pressing member 4 abuts against the busbar 7, and the protrusion 71 of the busbar 7 is located in the gap 43 between the two adjacent pressing members 4. Next, the shearing member 5 moves, and the protrusion 71 of the busbar 7 is located at the shearing end of the shearing member 5. Finally, the shearing member 5 cuts the position of the protrusion 71 of the busbar 7. Through the cooperation of the pressing member 4 and the first driving member 1, the pressing member 4 can abut against the busbars 7 on both sides of the protrusion 71, and the busbars 7 on both sides of the protrusion 71 are in contact with the battery cell, thereby avoiding the tilting of the protrusion 71 and the different heights of the protrusions 71 of different busbars 7. By setting the gap 43 between two adjacent pressing parts 4, the protrusion 71 can be located within the gap 43, avoiding deformation of the protrusion 71 caused by the pressing parts 4. When the pressing parts 4 abut against the busbars 7 on both sides of the protrusion 71, the protrusion 71 is located in the middle position of the gap 43 between the two pressing parts 4. This allows the shearing parts 5 to cut the middle position of the protrusion 71 when shearing the protrusions 71 of different busbars 7, thus improving the accuracy of the shearing position of the protrusions 71 on the busbar 7.

[0024] Reference Figure 1 As shown, the first driving component 1 is a linear driving component. The output end of the first driving component 1 is connected to the mounting plate 2, and the first driving component 1 can drive the mounting plate 2 to rise and fall. Specifically, the output end of the first driving component 1 is connected to the mounting plate 2 through a third connecting plate 11, and the plane of the third connecting plate 11 is perpendicular to the plane of the mounting plate 2. To make the rising and falling of the mounting plate 2 more stable, the mounting plate 2 is slidably connected to the side wall of the first driving component 1 through a slide rail. The output end of the first driving component 1 is located at the bottom of the first driving component 1, and the top of the first driving component 1 is connected to the output end of the external moving component, thereby enabling the busbar shearing device to move. The gap 43 between two adjacent pressing components 4 corresponds vertically to the position of the protrusion 71 of the busbar 7.

[0025] The pressure member 4 is used to press down on both sides of the protrusion 71 on the busbar 7. At least two pressure members 4 are connected to the mounting plate 2, and there is a gap 43 between adjacent pressure members 4. Specifically, in this embodiment, the mounting plate 2 is connected to two pressure members 4. The number of pressure members 4 can be set according to the width and number of busbars 7. The opposite sides of two adjacent pressure members 4 are provided with grooves 46, so that the pressure members 4 are bent rod-shaped structures and the two pressure members 4 are frame structures. The grooves 46 of the two pressure members 4 form a clearance opening, and the shearing end of the shearing member 5 can be located in the clearance opening, thereby facilitating the movement of the shearing member 5 and avoiding interference between the shearing member 5 and the pressure member 4. A pressure block 42 is connected to the pressure side of the pressure member 4. The pressure side of the pressure member 4 is located at the bottom of the pressure member 4. The pressure block 42 is made of flexible material. During the descent of the pressure member 4, the pressure block 42 abuts against the busbar 7, thereby giving the pressure block 42 a certain buffering effect and preventing the pressure member 4 from rigidly abutting against the busbar 7, which would cause damage to the busbar 7. The ends of the opposite sides of two adjacent pressure members 4 are provided with clearance surfaces 44. Specifically, the clearance surfaces 44 are located on both sides of the bottom gap 43 between the opposite sides of the two pressure members 4, that is, the clearance surfaces 44 are located at the port position of the opening end of the groove 46 on the pressure member 4. The clearance surfaces 44 can be regarded as the chamfer of the end of the pressure member 4. The setting of the clearance surfaces 44 allows the shearing member 5 to have a larger range of movement in the clearance opening, while avoiding interference between the end of the pressure member 4 and the shearing member 5, so that the shearing member 5 can cut the protrusion 71 of the busbar 7 with a lower height.

[0026] Reference Figure 2 As shown, the busbar shearing device also includes a first connecting plate 31, a second connecting plate 41, and an elastic element 3. The elastic element 3 can be considered as a spring and is located between the first connecting plate 31 and the second connecting plate 41. A mounting plate 2 is connected to the first connecting plate 31, and the plane of the mounting plate 2 is perpendicular to the plane of the first connecting plate 31. A pressing element 4 is connected to the second connecting plate 41, and the plane of the second connecting plate 41 is parallel to the plane of the mounting plate 2. The top end of the pressing element 4 is connected to the bottom side wall of the second connecting plate 41. A guide rod 33 is connected to the second connecting plate 41. The bottom of the guide rod 33 is threadedly connected to the top end of the second connecting plate 41. The guide rod 33 passes through the first connecting plate 31 and is slidably connected to it. A blocking element 34 is connected to the top end of the guide rod 33, which abuts against the first connecting plate 31 to prevent the guide rod 33 from detaching from the first connecting plate 31. The elastic element 3 is sleeved on the guide rod 33. By setting the elastic element 3, when the pressure element 4 abuts against the busbar 7 and applies pressure to the busbar 7, the first connecting plate 31 can continue to descend, thereby compressing the elastic element 3 and buffering the busbar 7 to prevent damage to the busbar 7.

[0027] Preferably, the second connecting plate 41 is connected to at least two guide rods 33, and each guide rod 33 is fitted with an elastic element 3, so that the movement of the second connecting plate 41 is more stable.

[0028] Preferably, the mounting plate 2 is provided with a bayonet 21, and the first connecting plate 31 is provided with a locking block 32. The bayonet 21 and the locking block 32 engage to position the first connecting plate 31, thereby making the fit between the pressing component 4 and the shearing component 5 more precise. The shearing component 5 has higher precision when shearing the protrusion 71 of the busbar 7. At the same time, the engagement between the locking block 32 and the bayonet 21 makes the connection between the first connecting plate 31 and the mounting plate 2 more stable, preventing the first connecting plate 31 from shaking when the pressing component 4 and the busbar 7 come into contact.

[0029] Preferably, the bottom sidewall of the second connecting plate 41 is provided with a mating groove 45, and the bottom of the mating groove 45 is provided with multiple connecting holes, which are arranged horizontally. The top of the pressing component 4 engages with the mating groove 45, thereby positioning the pressing component 4 and ensuring its stability, preventing the pressing component 4 from shaking when it comes into contact with the manifold 7. The connecting holes are threaded holes, and the pressing component 4 is connected to the connecting holes of the second connecting plate 41 by screws, thereby connecting the pressing component 4 to the second connecting plate 41. By providing multiple connecting holes, the connection position between the pressing component 4 and the second connecting plate 41 can be adjusted, thereby adjusting the distance between the two pressing components 4 and changing the width of the gap 43 between the two pressing components 4, so that the pressing component 4 can be used to press down on the protrusions 71 of the manifold 7 of different widths.

[0030] The busbar shearing device also includes a movable plate 36, the plane of which is parallel to the plane of the first connecting plate 31. A guide rod 33 passes through the movable plate 36 and is slidably connected to it. The movable plate 36 is located between the first connecting plate 31 and the second connecting plate 41, and can descend under the push of the first connecting plate 31. When the first connecting plate 31 is reset, the movable plate 36 can rise under the push of the elastic member 3. The elastic member 3 is located between the movable plate 36 and the second connecting plate 41. A pressure detection member 35 is connected to the bottom of the first connecting plate 31. The pressure detection member 35 corresponds to the movable plate 36 in the vertical direction. The pressure detection member 35 can be regarded as a pressure sensor and is connected to the controller. When the pressing member 4 abuts against the busbar 7 and applies pressure to the busbar 7, the first connecting plate 31 drives the pressure detection member 35 to move towards the second connecting plate 41, so that the detection end of the pressure detection member 35 abuts against the movable plate 36, thereby detecting the pressure and preventing excessive pressure from damaging the busbar 7.

[0031] Reference Figure 1As shown, the second driving member 6 is a linear driving member. The top side of the second driving member 6 is connected to the mounting plate 2 via the first connecting seat 61. The first connecting seat 61 and the first connecting plate 31 are respectively connected to opposite sides of the mounting plate 2. The shearing member 5 can be regarded as a pneumatic scissor. The shearing member 5 includes a shearing blade 51 capable of shearing the busbar 7. The shearing position of the shearing blade 51 is the shearing end of the shearing member 5, which faces the clearance opening. The shearing member 5 is connected to the output end of the second driving member 6 via the second connecting seat 52. The second driving member 6 can drive the shearing member 5 to move towards the clearance opening, so that the shearing end of the shearing member 5 can be located within the clearance opening, thereby cutting off the protrusion 71 of the busbar 7. With the setting of the elastic member 3, after the pressing member 4 abuts against the busbar 7, the shearing member 5 can continue to descend, so that the height of the shearing member 5 can be adjusted to adapt to the protrusion 71 of the busbar 7 at different heights, further improving the accuracy of the shearing position of the protrusion 71 of the busbar 7.

[0032] In use, the external moving component drives the busbar to move using the shearing device, so that the gap 43 between two adjacent pressing parts 4 corresponds vertically to the position of the protrusion 71 of the busbar 7. Then, the first driving component 1 drives the mounting plate 2 to descend until the pressing part 4 abuts against the busbar 7. At this time, the protrusion 71 of the busbar 7 is located in the gap 43 between two adjacent pressing parts 4. Then, the mounting plate 2 continues to descend, so that the pressing part 4 applies pressure to the busbar 7. At this time, the position on the busbar 7 pressed by the pressing part 4 is in close contact with the battery cell. The pressure detection component 35 abuts against the moving plate 36 and detects the pressure. The elastic part 3 is compressed. Finally, the shearing component 5 shears the position of the protrusion 71 of the busbar 7.

[0033] This invention also provides a busbar cutting method, which uses the aforementioned busbar cutting device to cut the protrusion 71 of the busbar 7, including the following steps: Step S1: Align the gap 43 between two adjacent pressing members 4 with the protrusion 71 of the busbar 7; Step S2: Lower the mounting plate 2 until the pressing member 4 abuts against the busbar 7, and the protrusion 71 of the busbar 7 is located in the gap 43 between the two adjacent pressing members 4; Step S3: Move the cutting member 5, and the protrusion 71 of the busbar 7 is located at the cutting end of the cutting member 5; Step S4: The cutting member 5 cuts the protrusion 71 of the busbar 7. Between steps S2 and S3, a detection step is also included. Then, the mounting plate 2 continues to lower, the pressing member 4 applies pressure to the busbar 7, and the position on the busbar 7 pressed by the pressing member 4 is tightly fitted with the battery cell. The pressure detection member 35 abuts against the movable plate 36, and the pressure detection member 35 detects the pressure, while the elastic member 3 is compressed.

[0034] This invention discloses a shearing device and method for busbars. Through the cooperation of a pressing member 4 and a first driving member 1, the pressing member 4 abuts against the busbars 7 on both sides of the protrusion 71, ensuring the busbars 7 on both sides of the protrusion 71 are in contact with the battery cell. This prevents the protrusion 71 from tilting and avoids differences in the height of the protrusions 71 among different busbars 7. The gap 43 between two adjacent pressing members 4 ensures the protrusion 71 is located within the gap 43, preventing deformation of the protrusion 71 caused by the pressing member 4. When the pressing member 4 abuts against the busbars 7 on both sides of the protrusion 71, the protrusion 71 is located in the middle of the gap 43 between the two pressing members 4. This means that after different busbars 7 are pressed down by the pressing member 4, the protrusions 71 are located in the same position. Therefore, when the shearing member 5 cuts the protrusions 71 of different busbars 7, it can cut at the middle position of the protrusion 71, improving the accuracy of the cutting position of the protrusions 71 on the busbar 7. By setting the elastic element 3, when the pressure element 4 abuts against the busbar 7 and applies pressure to the busbar 7, the first connecting plate 31 can continue to descend, thereby compressing the elastic element 3 and buffering the busbar 7 to prevent damage to the busbar 7.

[0035] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A shearing device for busbars, characterized in that, include: A first driving component, the output end of which is connected to a mounting plate, and the first driving component is capable of driving the mounting plate to rise and fall. At least two of the pressure components are connected to the mounting plate, and there is a gap between two adjacent pressure components; A second driving component is connected to the mounting plate; A shearing component is connected to the output end of the second driving component, and the shearing end of the shearing component can extend into the gap between two adjacent pressing components.

2. The busbar shearing device according to claim 1, characterized in that: The opposite sides of two adjacent pressing components are provided with grooves, and the grooves of the two pressing components form a clearance opening, so that the shearing end of the shearing component can be located within the clearance opening.

3. The busbar shearing device according to claim 1, characterized in that: It also includes a first connecting plate, a second connecting plate, and an elastic element, wherein the elastic element is located between the first connecting plate and the second connecting plate, the mounting plate is connected to the first connecting plate, and the pressing element is connected to the second connecting plate.

4. The busbar shearing device according to claim 3, characterized in that: The second connecting plate is connected to a guide rod, which passes through the first connecting plate and is slidably connected to it. A blocking member is connected to the end of the guide rod, which can abut against the first connecting plate. The elastic member is sleeved on the guide rod.

5. The busbar shearing device according to claim 4, characterized in that: It also includes a movable plate, the guide rod passes through the movable plate and is slidably connected to the movable plate, the elastic element is located between the movable plate and the second connecting plate, the first connecting plate is connected to a pressure detection element, and the movable plate can abut against the detection end of the pressure detection element.

6. The busbar shearing device according to claim 4, characterized in that: The second connecting plate is connected to at least two of the guide rods, and each guide rod is fitted with an elastic element.

7. The busbar shearing device according to claim 3, characterized in that: The mounting plate is provided with a latch, and the first connecting plate is provided with a latching block, and the latch engages with the latching block.

8. The busbar shearing device according to claim 3, characterized in that: The second connecting plate is provided with a mating groove, and the bottom of the mating groove is provided with multiple connecting holes. The pressing component is connected to the second connecting plate through the connecting holes.

9. The busbar shearing device according to claim 1, characterized in that: The pressing side of the pressing component is connected to a pressing block.

10. A method for shearing a busbar, characterized in that, The method of cutting the protruding part of the busbar using the busbar shearing device according to any one of claims 1-9 includes the following steps: Step S1: Align the gap between two adjacent pressure components with the protrusion position of the manifold; Step S2: The mounting plate descends until the pressure member abuts against the manifold, and the protrusion of the manifold is located in the gap between two adjacent pressure members; Step S3: The shearing component moves, and the protrusion of the busbar is located at the shearing end of the shearing component; Step S4: The shearing component cuts the protruding part of the busbar.

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