Flat welding strip clamping and carrying device
By designing a flat welding strip clamping and handling device, the problem of flat welding strip standing upright was solved by using the cooperation of clamps and pressing parts, thus achieving flat laying of flat welding strip and improving the welding success rate.
Patent Information
- Application Number
- CN202420587197.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-03-26
AI Technical Summary
In existing technologies, when using clamps to lay flat welding strips, the flat welding strips tend to stand upright and cannot be welded to the battery cells, resulting in welding failure.
A flat welding strip clamping and handling device was designed, including a moving drive mechanism, a moving frame, a central clamping and pressing unit, and a side clamping and pressing unit. Through the cooperation of the clamps and pressing components, the flat welding strip is ensured to be laid flat on the battery cell.
This method enables the flat laying of the flat welding strip, improves the welding success rate, and solves the problem of the flat welding strip standing upright.
Smart Images
Figure CN223872722U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery string production technology, specifically to a flat welding strip clamping and handling device. Background Technology
[0002] In an IBC (Interdigitated Back Contact) solar cell, both the positive and negative metal contacts are located on the back of the cell. In a battery string made by connecting multiple IBC cells using multiple sets of solder ribbons, the solder ribbons are laid in an interdigital pattern on the back of the multiple IBC cells.
[0003] In existing technologies, during the fabrication of the aforementioned battery strings, a solder ribbon cutting mechanism produces multiple sets of solder ribbons arranged in an interdigital pattern. Multiple clamps are then used to lay these solder ribbons onto multiple battery cells. Typically, clamps holding the cells from both sides are used to lay the solder ribbons. The solder ribbons are circular; after the clamps release the ribbons from a certain height above the cell surface, the circular ribbons are laid on the cell surface. However, when flat solder ribbons are used, after the clamps release the flat ribbons, they fall onto the cell and stand upright, making welding to the cell impossible. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention improves the structure of the welding strip handling device and provides a flat welding strip clamping and handling device.
[0005] To achieve the above objectives, this utility model provides the following solution:
[0006] A flat welding strip clamping and handling device includes: a moving drive mechanism, a moving frame, a central clamping and pressing unit, and a side clamping and pressing unit. The driving part of the moving drive mechanism is driven to move the moving frame. The central clamping and pressing unit and the side clamping and pressing unit are connected to the bottom of the moving frame. Multiple central clamping and pressing units are provided and spaced apart along a first direction. Two side clamping and pressing units are provided and arranged on both sides of the multiple central clamping and pressing units along the first direction. Each central clamping and pressing unit includes two first clamping clamp groups arranged side-by-side along the first direction and a first pressing member movably disposed between the two first clamping clamp groups. Along a second direction, each first clamping clamp group includes multiple spaced-apart first clamps. Each side clamping and pressing unit includes a second clamp and a movably disposed second pressing member. The second clamp has multiple clamps for clamping the ends of the flat welding strip located at both ends of a battery string. The second pressing member is used to press the flat welding strip extending from both ends of the battery string. The first direction is perpendicular to the second direction.
[0007] In one embodiment of this utility model, the first clamps in two adjacent central clamping and pressing units are staggered along the second direction, and the sum of the number of the first clamps in two adjacent first clamp groups in two adjacent central clamping and pressing units is equal to the total number of flat welding strips connected to a single battery cell in the battery string.
[0008] Furthermore, each of the first pressing members includes a plurality of spaced-apart first elastic pressure heads, and the first elastic pressure heads in each of the first pressing members are staggered with the first clamps along the second direction. The sum of the number of the first clamps in a single first clamp group in each of the first pressing members and the number of the first elastic pressure heads is equal to the total number of the flat welding strips connected to a single battery cell.
[0009] Furthermore, each of the second pressing members includes a plurality of second elastic pressure heads arranged at intervals, and the second elastic pressure heads in each of the second pressing members are arranged in a one-to-one correspondence with the first clamps in a first clamp group adjacent to them along the second direction.
[0010] In another embodiment of the present invention, the number of first clamps in each first clamp group of each of the central clamping and pressing units is equal to the total number of flat welding strips connected to a single battery cell in the battery string (40).
[0011] Furthermore, each of the first pressing members includes a plurality of first elastic pressure heads spaced apart, and the first clamps in a single first clamp group of each of the first pressing members are arranged in a one-to-one correspondence with the first elastic pressure heads along the second direction.
[0012] Furthermore, each of the second pressing members includes a plurality of second elastic pressure heads arranged at intervals, and the second elastic pressure heads in each of the second pressing members are arranged in a one-to-one correspondence with the first clamps in a first clamp group adjacent to them along the second direction.
[0013] Furthermore, the pressing ends of the first elastic pressure head and the second elastic pressure head are provided with grooves.
[0014] Furthermore, the movable frame includes a movable plate and a plurality of mounting seats detachably connected to the movable plate, each of the mounting seats being equipped with a central clamping and pressing unit and a side clamping and pressing unit.
[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects:
[0016] The flat welding strip clamping and handling device provided by this utility model includes: a moving drive mechanism, a moving frame, a central clamping and pressing unit, and a side clamping and pressing unit. The driving part of the moving drive mechanism is driven to move the moving frame to handle the flat welding strip. Each central clamping and pressing unit includes two first clamping clamp groups arranged side by side along a first direction and a first pressing member that is vertically and vertically arranged between the two first clamping clamp groups. Along a second direction, each first clamping clamp group includes multiple first clamps arranged at intervals. Each side clamping and pressing unit includes a second clamp and a vertically and vertically arranged second pressing member. The second clamp is provided with multiple clamping clamps for clamping the ends of the flat welding strip located at both ends of the battery string. The first clamps are used to clamp the ends of the flat welding strip located at other positions. The second pressing member is used to press the flat welding strips extending from both ends of the battery string and to press other flat welding strips. When the flat welding strip is released onto the battery cell, the first pressing member and the second pressing member press the flat welding strip, and the side-standing flat welding strip flips over and flattens under pressure. Attached Figure Description
[0017] Figure 1 This is the front view of the flat welding strip clamping and handling device of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the first type of battery string in this utility model;
[0019] Figure 3 This is a schematic diagram of a state in which the flat welding strip clamping and handling device of this utility model clamps the flat welding strip required for the first type of battery string;
[0020] Figure 4 This is a schematic diagram of a central clamping and pressing structure in this utility model;
[0021] Figure 5 This is a schematic diagram of the structure of the second type of battery string in this utility model;
[0022] Figure 6 This is a schematic diagram of the structure of the third type of battery string in this utility model;
[0023] Figure 7 This is a schematic diagram of one state of the flat welding strip clamping and handling device of this utility model clamping the flat welding strip required for the second type of battery string;
[0024] Figure 8 This is a schematic diagram of one state of the flat welding strip clamping and handling device of this utility model for clamping the flat welding strip required for a third type of battery string.
[0025] The components are as follows: 10. Movable frame; 11. Movable plate; 12. Adapter plate; 13. Mounting base; 20. Central clamping and pressing unit; 21. First clamp assembly; 211. First clamp; 212. First driving component; 213. Lifting plate; 214. Clamp seat; 22. First pressing component; 221. First elastic pressure head; 222. Second driving component; 223. Elastic seat; 30. Side clamping and pressing unit; 31. Second clamp assembly; 311. Second clamp; 32. Second pressing component; 321. Second elastic pressure head; 40. Battery string; 41. Battery cell; 42. Flat welding strip. Detailed Implementation
[0026] The technical solution and effects of this utility model will be further described in detail below with reference to the accompanying drawings.
[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature include the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of the second feature include the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0028] In the description of this embodiment, terms such as "upper," "lower," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish between a first feature and a second feature, and do not necessarily require or imply any such actual relationship or order between these features.
[0029] like Figures 1-3As shown, this utility model provides a flat welding strip clamping and handling device for handling multiple sets of flat welding strips for welding with IBC battery cells. It includes: a moving drive mechanism, a moving frame 10, a central clamping and pressing unit 20, and side clamping and pressing units 30. The driving part of the moving drive mechanism is driven to move the moving frame 10. The central clamping and pressing unit 20 and the side clamping and pressing unit 30 are connected to the bottom of the moving frame 10. Multiple central clamping and pressing units 20 are provided and spaced apart along a first direction. Two side clamping and pressing units 30 are provided and arranged along the first direction between the multiple central clamping and pressing units 20. The two sides; each central clamping and pressing unit 20 includes two first clamping assemblies 21 arranged side by side along a first direction and a first pressing member 22 that is vertically disposed between the two first clamping assemblies 21. Along a second direction, each first clamping assembly 21 includes a plurality of spaced-apart first clamps 211. Each side clamping and pressing unit 30 includes a second clamp 311 and a vertically displaceable second pressing member 32. The second clamp 311 is provided with a plurality of clamping ends of flat welding strips 42 located at both ends of the battery string 40. The second pressing member 32 is used to press the flat welding strips 42 extending from both ends of the battery string 40. The first direction is perpendicular to the second direction. In this utility model, "a plurality" includes two or more.
[0030] The moving drive mechanism drives the moving frame 10 to move horizontally and vertically, transporting the arranged sets of flat welding strips 42 to the locations of the arranged flat battery cells 41. (See attached...) Figure 3 Taking the provided battery string 40 as an example, the battery string 40 includes three battery cells 41 and four sets of flat welding strips 42. Adjacent sets of flat welding strips 42 are connected to the same battery cell 41 in an interdigitated manner. Counting from left to right, they are the first battery cell 41, the second battery cell 41, and the third battery cell 41, and the first set of flat welding strips 42, the second set of flat welding strips 42, the third set of flat welding strips 42, and the fourth set of flat welding strips 42. The first set of flat welding strips 42 and the fourth set of flat welding strips 42 are shorter than the second set of flat welding strips 42 and the third set of flat welding strips 42. The left end of the first set of flat welding strips 42 extends beyond the first battery cell 41, and the right end of the fourth set of flat welding strips 42 extends beyond the third battery cell 41. The left end of the first set of flat welding strips 42 and the right end of the fourth set of flat welding strips 42 are used for welding to the busbar.
[0031] If clamping and handling Figure 3The battery string 40 shown requires multiple sets of flat solder strips 42, and the flat solder strip clamping and transporting device includes two central clamping and pressing units 20. The left-side clamping and pressing unit 30 has a second clamp 311 for clamping the left ends of the first set of flat solder strips 42 and the second set of flat solder strips 42, and a second pressing member 32 for pressing the left end of the first set of flat solder strips 42; the right-side clamping and pressing unit 30 has a second clamp 311 for clamping the right ends of the third set of flat solder strips 42 and the fourth set of flat solder strips 42, and a second pressing member 32 for pressing the right end of the fourth set of flat solder strips 42. The middle clamping and pressing unit 20 located on the left side has two first clamp groups 21, the first clamps 211 of which are used to clamp the right end of the first group of flat welding strips 42 and the left end of the third group of flat welding strips 42 respectively, and the first pressing member 22 of which is used to press the middle part of the second group of flat welding strips 42; the middle clamping and pressing unit 20 located on the right side has two first clamp groups 21, the first clamps 211 of which are used to clamp the right end of the second group of flat welding strips 42 and the left end of the fourth group of flat welding strips 42 respectively, and the first pressing member 22 of which is used to press the middle part of the third group of flat welding strips 42.
[0032] When the flat welding strip clamping and transporting device arranges multiple sets of flat welding strips 42 on multiple arranged battery cells 41, the first clamp 211 and the second clamp 311 clamp the flat welding strips 42 and suspend them above the battery cells 41. The height of the bottom end of the first clamp 211 and the second clamp 311 from the battery cell 41 is less than the width of the flat welding strip 42. The first clamp 211 and the second clamp 311 are opened by a distance slightly larger than the width of the flat welding strip 42. At this time, the flat welding strip 42 falls onto the battery cell 41. The first pressing member 22 and the second pressing member 32 press the flat welding strip 42, and the side-standing flat welding strip 42 flips and flattens under the pressure.
[0033] Combined Figure 3 In one embodiment of this utility model, for battery strings 40 where the number of flat solder strips 42 connected to a single battery cell 41 is odd, the first clamps 211 in two adjacent middle clamping and pressing units 20 are staggered along the second direction, and the sum of the number of first clamps 211 in two adjacent first clamping groups 21 in two adjacent middle clamping and pressing units 20 is equal to the total number of flat solder strips 42 connected to a single battery cell 41 in the battery string 40.
[0034] Furthermore, each first pressing member 22 includes a plurality of spaced first elastic pressing heads 221. The first elastic pressing heads 221 and the first clamps 211 in each first pressing member 22 are staggered along the second direction. The sum of the number of first clamps 211 in a single first clamp group 21 in each first pressing member 22 and the number of first elastic pressing heads 221 is equal to the total number of flat welding strips 42 connected to a single battery cell 41.
[0035] Furthermore, each second pressing member 32 includes a plurality of spaced second elastic pressing heads 321, and the second elastic pressing heads 321 in each second pressing member 32 are arranged in a one-to-one correspondence with the first clamps 211 in a first clamp group 21 adjacent to it along the second direction.
[0036] In this embodiment, the first clamp 211 and the second clamp 311 only clamp the ends of the flat welding strip 42, and each first elastic pressure head 221 and the second elastic pressure head 321 presses down on one flat welding strip 42.
[0037] In one feasible embodiment, the movable frame 10 includes a movable plate 11 and a plurality of mounting seats 13 detachably connected to the movable plate 11. Each mounting seat 13 is equipped with a central clamping and pressing unit 20 and a side clamping and pressing unit 30. Specifically, the mounting seats 13 are fixed to the movable plate 11 via an adapter plate 12. The adapter plate 12 can be installed at different positions on the movable plate 11, allowing the spacing between the plurality of mounting seats 13 to be adjusted for handling flat welding strips 42 of different lengths. Furthermore... Figure 4 The movable frame includes a central clamping and pressing unit 20, a first driving member 212, a lifting plate 213, a clamp seat 214, a second driving member 222, and an elastic seat 223. The first driving member 212 is mounted on the mounting base 13. The clamp seat 214 is fixed to the lower part of the mounting base 13 by a connecting rod. The middle part of the first clamp 211 is hinged to the clamp seat 214, and the upper part of the first clamp 211 is located above the clamp seat 214. The lower part is the clamping part located below the clamp seat 214. The lifting plate 213 is located between the mounting base 13 and the clamp seat 214 and is connected to the driving end of the first driving member 212. The top ends of the two clamping rods of the first clamp 211 are located in the V-shaped groove formed on the lifting plate 213. A compression spring is provided between the upper parts of the two clamping rods. When the first driving member 212 drives the lifting plate 213 to rise and fall, the clamping part of the first clamp 211 opens or closes to release or clamp the flat welding strip 42. There are two second driving members 222, which are fixed to both ends of the mounting base 13. The elastic seat 223 is located below the clamp seat 214. The first elastic pressure head 221 is set at the bottom of the elastic seat 223 by a spring. The driving ends of the two second driving members 222 are driven to the two ends of the elastic seat 223, so that the first elastic pressure head 221 can move up and down and elastically press the flat welding strip 42. The first driving member 212 and the second driving member 222 can be a push rod motor or a cylinder. In this utility model, the working principle of the second clamp 311 and the second elastic pressure head 321 is the same as that of the first clamp 211 and the first elastic pressure head 221, and the structure is similar, so it will not be described again here.
[0038] like Figure 5 and Figure 6The diagram illustrates two other types of battery strings 40. In both types of battery strings 40, the number of flat solder strips 42 connected to a single battery cell 41 is even and they are mirror images of each other. In another embodiment of this invention, to handle the flat solder strips 42 required for these two types of battery strings 40, the number of first clamps 211 in each first clamp group 21 of each central clamping pressing unit 20 is equal to the total number of flat solder strips 42 connected to a single battery cell 41 in the battery string 40.
[0039] Furthermore, each first pressing member 22 includes a plurality of spaced first elastic pressing heads 221, and the first clamps 211 in a single first clamp group 21 of each first pressing member 22 are arranged in a one-to-one correspondence with the first elastic pressing heads 221 along the second direction.
[0040] Furthermore, each second pressing member 32 includes a plurality of spaced second elastic pressing heads 321, and the second elastic pressing heads 321 in each second pressing member 32 are arranged in a one-to-one correspondence with the first clamps 211 in a first clamp group 21 adjacent to it along the second direction.
[0041] When switching between the two types of battery strings 40, the first clamp 211 and the second clamp 311 can still clamp all the ends of the flat welding strips 42, and the first pressing member 22 and the second pressing member 32 can still press all the flat welding strips 42.
[0042] It should be noted that the present invention does not specifically limit the arrangement of the second clamp 311 and the second elastic pressure head 321; the first pressing member 22 and the second pressing member 32 can be strip-shaped structures.
[0043] In one alternative embodiment, the pressing ends of the first elastic pressure head 221 and the second elastic pressure head 321 are provided with grooves. Since the contact surface between the flat welding strip 42 and the first pressing member 22 and the second pressing member 32 is a plane, the grooves can break the vacuum.
[0044] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the present utility model.
Claims
1. A flat welding strip clamping and handling device, characterized in that, include: The moving drive mechanism comprises a moving frame (10), a central clamping and pressing unit (20), and side clamping and pressing units (30). The driving part of the moving drive mechanism is driven to move the moving frame (10). The central clamping and pressing unit (20) and the side clamping and pressing unit (30) are connected to the bottom of the moving frame (10). Multiple central clamping and pressing units (20) are provided and spaced apart along a first direction. Two side clamping and pressing units (30) are provided and arranged on both sides of the multiple central clamping and pressing units (20) along the first direction. Each central clamping and pressing unit (20) includes two units arranged along the first direction. The first clamp group (21) is arranged in parallel directions and the first pressing member (22) is arranged vertically between the two first clamp groups (21). Along the second direction, each first clamp group (21) includes a plurality of spaced first clamps (211); each side clamping pressing unit (30) includes a second clamp (311) and a vertically adjustable second pressing member (32). The second clamp (311) is provided with a plurality of flat welding strips (42) ends located at both ends of the battery string (40). The second pressing member (32) is used to press the flat welding strips (42) extending from both ends of the battery string (40). The first direction is perpendicular to the second direction.
2. The flat welding strip clamping and conveying device according to claim 1, characterized in that: The first clamps (211) in two adjacent middle clamping and pressing units (20) are staggered along the second direction. The sum of the number of the first clamps (211) in two adjacent first clamp groups (21) in two adjacent middle clamping and pressing units (20) is equal to the total number of flat welding strips (42) connected to a single battery cell (41) in the battery string (40).
3. The flat welding strip clamping and conveying device according to claim 2, characterized in that: Each of the first pressing members (22) includes a plurality of spaced first elastic pressing heads (221), and the first elastic pressing heads (221) in each of the first pressing members (22) are staggered with the first clamps (211) along the second direction. The sum of the number of the first clamps (211) in a single first clamp group (21) in each of the first pressing members (22) and the number of the first elastic pressing heads (221) is equal to the total number of the flat welding strips (42) connected to a single battery cell (41).
4. The flat welding strip clamping and conveying device according to claim 3, characterized in that: Each of the second pressing members (32) includes a plurality of spaced second elastic pressing heads (321), and the second elastic pressing heads (321) in each of the second pressing members (32) are arranged in a one-to-one correspondence with the first clamps (211) in one of the adjacent first clamp groups (21) along the second direction.
5. The flat welding strip clamping and conveying device according to claim 1, characterized in that: The number of first clamps (211) in each of the first clamp groups (21) in each of the central clamping and pressing units (20) is equal to the total number of flat welding strips (42) to which a single battery cell (41) in the battery string (40) is connected.
6. The flat welding strip clamping and handling device according to claim 5, characterized in that: Each of the first pressing members (22) includes a plurality of spaced first elastic pressure heads (221), and the first clamps (211) in a single first clamp group (21) of each of the first pressing members (22) are arranged in a one-to-one correspondence with the first elastic pressure heads (221) along the second direction.
7. The flat welding strip clamping and conveying device according to claim 6, characterized in that: Each of the second pressing members (32) includes a plurality of spaced second elastic pressing heads (321), and the second elastic pressing heads (321) in each of the second pressing members (32) are arranged in a one-to-one correspondence with the first clamps (211) in one of the adjacent first clamp groups (21) along the second direction.
8. The flat welding strip clamping and handling device according to claim 4 or 7, characterized in that: The pressing ends of the first elastic pressure head (221) and the second elastic pressure head (321) are provided with grooves.
9. The flat welding strip clamping and handling device according to claim 1, characterized in that: The movable frame (10) includes a movable plate (11) and a plurality of mounting seats (13) detachably connected to the movable plate (11), each of the mounting seats (13) being equipped with a central clamping and pressing unit (20) and a side clamping and pressing unit (30).